TW202212176A - Handrail assembly, method of manufacturing handrail assembly, support frame structure and child carriage - Google Patents

Abstract

The invention discloses a handrail assembly including a handrail body. The handrail body is covered by a first protective layer of a flexible structure. The first protective layer is covered by a second protective layer. The second protective layer shields the first protective layer from being exposed to the outside. The handrail assembly can prevent the first protective layer from being exposed to the outside and prevent children from swallowing the first protective layer, thereby ensuring the safety of children. The invention further discloses a method of manufacturing the handrail assembly, and a support frame structure and a child carriage with the handrail assembly. The support frame structure includes a front frame assembly, a rear frame assembly, a push rod assembly, a connecting assembly and the handrail assembly. A connecting portion of the handrail assembly is detachably connected to the connecting assembly. The child carriage with the support frame structure can enable the handrail assembly to be assembled and disassembled conveniently and quickly, save storage space, and is convenient for children to ride and leave.

Description

Armrest assembly and method of manufacture, support frame structure and child carrier

The present invention relates to the field of baby products, in particular to an armrest assembly and a manufacturing method thereof, a support frame structure having the armrest assembly, and a child carrier.

When designing a child carrier, in order to consider the safety of riding children, a front armrest that extends forward is usually designed at the armrest to prevent the child from falling forward. The front armrest is generally covered with a protective cover with a buffering function. Due to the strong curiosity of children, when children ride on the children's vehicle, they often bite and pull the protective cover of the front armrest. Because the protective cover has a buffering function, it is It is made of flexible material, which is easy to be bitten or pulled by children, which will cause the body of the armrest to be exposed and lose its buffer function and be swallowed by children, which seriously endangers the safety of children.

Furthermore, the traditional protective covers for strollers on the market are mostly made of leather backed with an adhesive layer and then pasted with EVA (Ethylene Vinyl Acetate Copolymer, ethylene-vinyl acetate copolymer). The handrail tube assembled to the stroller needs a long time to wait for the glue to solidify before the protective cover can be fixedly attached to the handrail tube. This process is complicated, and a single person can only process one handrail component at a time, which consumes labor and man-hours. In addition, the fitting effect between the assembled protective cover and the handrail tube is not good, the protective cover and the handrail tube are not tightly fitted, and uneven crepe occurs, which greatly affects the overall aesthetics of the handrail assembly and the children's vehicle.

Therefore, there is a great need to provide a handrail assembly and a manufacturing method thereof that can prevent the filler from being exposed to the outside world, prevent children from accidentally swallowing the filler, and thus protect the safety of children's lives.

One of the objectives of the present invention is to provide a handrail assembly, which can prevent the filler from being exposed to the outside world, and prevent children from accidentally swallowing the filler, thereby ensuring the safety of children's lives.

The second purpose of the present invention is to provide a method for manufacturing a handrail assembly, which can process multiple handrail assemblies at a time, so that the assembled protective cover closely fits the handrail body, with good protection effect and simple processing operation.

The third object of the present invention is to provide a support frame structure with a handrail assembly that can prevent the filler from being exposed to the outside world, so as to prevent children from accidentally swallowing the filler, thereby ensuring the safety of children's lives.

The fourth object of the present invention is to provide a child carrier with a support frame structure of the armrest assembly that can prevent the filler from being exposed to the outside world, so as to prevent children from accidentally swallowing the filler and thus ensure the safety of children's lives.

In order to achieve the above purpose, the present invention provides a handrail assembly, comprising a handrail body, the handrail body is covered with a first protective layer of a flexible structure, the first protective layer is covered with a second protective layer, and the second protective layer shields the first protective layer. A protective layer prevents the first protective layer from being exposed to the outside world.

Compared with the prior art, because the armrest body of the armrest assembly of the present invention is covered with a first protective layer of a flexible structure as a filler, the flexible structure has a buffering function to prevent children from hitting the hard armrest assembly when leaning forward. Injuries caused by children, the first protective layer of the armrest assembly is covered with a second anti-biting protective layer. The second protective layer has the properties of wear resistance, strong toughness, good sealing and pulling resistance, and the second protective layer shields The first protective layer is exposed to the outside world, and the second protective layer completely encloses the first protective layer, which can prevent the first protective layer as a filler from being exposed to the outside world, and prevent children from accidentally swallowing the first protective layer as a filler. Children's life safety; at the same time, the two-layer protective layer structure not only has a good protective effect on children, but also has good strength, durability and long service life, especially the second protective layer adopts a leather structure, which can greatly improve the texture of the handrail components, that is, improve The overall grade and appearance of children's vehicles.

Preferably, both ends of the second protective layer of the present invention are respectively bent and extended to form bending sections covering both ends of the first protective layer. Since the end of the first protective layer is relatively easy to be exposed, by setting the bending section, the end of the first protective layer can be well prevented from being exposed, so as to prevent children from biting and swallowing them by mistake, so as to ensure the safety of children.

Preferably, the end of the bending section of the present invention extends to the end of the armrest body and at least partially fits with the end of the armrest body. In this way, the length and covering area of the bending section are increased, so that the end of the first protective layer is less likely to be exposed, which can better ensure the safety of children's lives.

Preferably, the bending section of the present invention forms a through hollow structure, and the central area of the end of the armrest body is exposed to the outside through the through opening of the hollow structure. In this way, it is convenient for the handrail body to pass through the protective cover formed by the combination of the first protective layer and the second protective layer, thereby greatly improving the production and processing efficiency of the handrail assembly.

Preferably, the bent section of the second protective layer of the present invention bypasses the end of the first protective layer and is embedded between the contact surface of the first protective layer and the armrest body, and the bent section is connected to the armrest body. In this way, the covered length of the end of the first protective layer is increased, that is, the outer and inner sides of the end of the first protective layer are covered, and the bending section is clamped by the armrest body and the first protective layer, so that the bending section is It will not turn out, so that the end of the first protective layer can be better prevented from being exposed, so as to prevent children from biting the exposed first protective layer and swallowing them by mistake, so as to better protect the life safety of children.

Preferably, the bending section of the present invention forms a hollow cylindrical structure, and the cylindrical structure is sleeved outside the armrest body. In this way, when the armrest body passes through the first protective layer and the second protective layer, the bending section will not be turned over, so as to ensure the effect of the bending section covering the end of the first protective layer, and prevent the first protection well. The ends of the layers are exposed.

Preferably, the handrail body of the present invention is a rigid tube with a hollow structure. The armrest body with the hollow structure can not only reduce the weight of the armrest assembly, but also reduce the overall weight of the children's vehicle, and is convenient for use, storage and handling, and requires less processing materials and lower cost.

Preferably, the armrest body of the present invention is an integral structure. This arrangement is convenient for processing and forming, and the integral structure has good strength, durability and long service life.

Preferably, the first protective layer of the present invention has an elastic structure. The elastic structure has a cushioning function to prevent the child from being injured by hitting the hard armrest assembly when leaning forward.

Preferably, the first protective layer of the present invention is a soft rubber structure or a foam structure. The protective layer of this structure not only has a good buffering protection effect, but also is easy to obtain and has a low procurement cost, which greatly reduces the cost of the armrest assembly and the overall cost of the children's vehicle.

Preferably, the second protective layer of the present invention is a leather structure. The leather structure is not only non-slip and durable, but also has good texture and high grade, which can greatly improve the texture of the armrest components and the overall texture of the children's vehicle, and enhance the user's favor and desire to buy.

The present invention also provides a method for manufacturing an armrest assembly, wherein the armrest assembly is the armrest assembly in any of the above technical solutions, and the manufacturing method includes the following steps:

(1) Provide a first protective layer, a second protective layer and a first adhesive layer, the first adhesive layer is provided on the surface of the first protective layer in contact with the armrest body, and the first adhesive layer is a hot-melt material;

(2) Adhering and fixing the first protective layer and the second protective layer to form a base material layer of an integrated structure;

(3) Curl the base material layer into a protective cover matching the body of the handrail, the protective cover has a cylindrical structure, and the first adhesive layer is located on the inner side of the protective cover;

(4) Insert the handrail body matching the protective cover into the protective cover to form the handrail assembly blank;

(5) Bake the handrail assembly blank until the first adhesive layer is completely melted;

(6) Cool the baked handrail assembly blank to form the required handrail assembly.

Compared with the prior art, since the protective cover of the present invention is sleeved on the surface of the handrail body and then baked at a high temperature, the first adhesive layer is in a molten state at a high temperature, so that the protective cover and the handrail body are adhered and fixed, and the assembled protection The sleeve is closely attached to the armrest body, and the position is kept fixed. The manufacturing method of the armrest assembly of the present invention can process multiple armrest assemblies at one time, the processing operation is simple, the processing procedure is reduced, the labor cost is saved, and the production efficiency is greatly improved; In the handrail assembly manufactured by this method, the protective layer is not easy to loosen, so as to ensure a fixed position, and between the multi-layer protective layers, as well as between the overall protective cover and the handrail body, it is not easy to loosen, so as to ensure good protection. The protective effect of the sleeve can improve the safety of use, and thus ensure the safety of children's lives.

Preferably, the step (2) of the present invention further includes the following steps: (21) providing a second adhesive layer, the second adhesive layer is made of hot melt material, and the second adhesive layer is provided on the first protective layer and the second protective layer between the layers; (22) baking at a high temperature to bond the first protective layer and the second protective layer into one body to form a base material layer. In this way, the first protective layer and the second protective layer are fixed into one by baking the second adhesive layer at a high temperature. This kind of adhesive fixing method is not only reliable, but also fits tightly, ensuring that there is no gap between the first protective layer and the second protective layer. It will be loose or delaminated, and the visual effect has a strong sense of integrated structure, which greatly improves the quality and appearance of the protective cover, and the protective effect is also good.

Preferably, the step (2) of the present invention further includes the following steps: (21) coating glue between the first protective layer and the second protective layer; (22) waiting for the glue to solidify, then the first protective layer and the second protective layer The protective layer is bonded together to form the base material layer. In this way, the fixing method with glue has the advantages of simple operation and low cost.

Preferably, the step (2) of the present invention further includes the following steps: (23) fixedly connecting the bending section to the first protective layer. In this way, when the protective cover and the armrest body are fixed together, the bending section can be fixedly connected to the first protective layer at the same time, so as to ensure that the end of the first protective layer is not exposed, thereby preventing children from biting and swallowing by mistake, so as to ensure The safety of children's lives.

Preferably, the step ( 23 ) of the present invention is located before the step ( 22 ), and the bending section can be fixed to the first protective layer together with the second protective layer. In this way, the fixing of the bending section and the fixing of the protective cover and the armrest body can be performed at the same time, and the production efficiency is higher.

Preferably, in step (23) of the present invention, the bending section is fixedly connected with the first protective layer by baking the second adhesive layer; or, in step (23), the bending section is fixed with the first protective layer by glue connect. The bending section and the first protective layer can be fixedly connected by these two methods, and the fixing method is simple and reliable, so that the bending section is not easily loosened.

Preferably, the step (3) of the present invention further comprises the step of curling the base material layer and sewing or hand sewing it into a protective cover matching the armrest body. The protective cover is formed by sewing or manual sewing, which is not only simple and convenient for production and processing, but also forms a sewing thread at the joint of the protective cover, which can improve the texture of the protective cover.

Preferably, the first adhesive layer and the second adhesive layer of the present invention have a film structure. The adhesive layer of the film structure has good flatness and ductility, which is convenient for the placement and spreading of the adhesive layer, and can well ensure that the position is fixed during the subsequent baking and hot-melting, and will not be dislocated or displaced, thereby facilitating the subsequent baking. Baked and hot-melted to ensure the strength after bonding, so that it is not easy to loosen between the two protective layers and between the protective cover and the armrest body, thereby ensuring the protective effect of the protective cover.

Preferably, the first adhesive layer and the second adhesive layer of the present invention are selected from PU (polyurethane, polyurethane) hot melt adhesive film, TPU (Thermoplastic polyurethanes, thermoplastic polyurethane elastomer rubber) hot melt adhesive film, PP (polypropylene, poly Propylene) hot melt adhesive film, PS (general purpose polystyrene, polystyrene plastic) hot melt adhesive film and PA (Polyamide, polyamide) hot melt adhesive film. Using these kinds of hot-melt adhesive films not only has good bonding effect, but also has relatively low production cost, and is also convenient for production and processing, which greatly improves production efficiency; Production and processing, improve production and processing efficiency.

Preferably, the first adhesive layer and the second adhesive layer of the present invention use different hot melt adhesive films. Since different materials have different adhesion degrees, the hot melt adhesive films are set differently to ensure the adhesion between the first protective layer and the second protective layer and the adhesion between the protective cover and the armrest body.

Preferably, the first adhesive layer of the present invention is bonded and fixed to the first protective layer by hot pressing or vacuum adsorption or the double-sided adhesive layer; The second protective layer or the first protective layer is adhered and fixed. In this way, the fixing of the first adhesive layer and the second adhesive layer is convenient, and the fixing is reliable. When the adhesive layer is baked, the adhesive layer will not be displaced or dislocated, so as to ensure the firmness of the adhesion between the two protective layers and the protective cover. The firmness and tightness of the bonding with the armrest body.

Preferably, the temperature range of baking in step (5) and step (22) of the present invention is 80°C to 150°C. Within this range, not only the firmness of the protective cover and the armrest body are directly bonded, but also not deformed by heat, so as to ensure the appearance of the protective cover and the protective effect of the protective cover.

Preferably, the baking time in step (5) and step (22) of the present invention ranges from 2 minutes to 6 minutes. Within this range, not only the firmness of the adhesion between the protective cover and the armrest body is ensured, but also the protective cover and the armrest body are not deformed by heat, and the production and processing time is reasonable, so as to improve the production and processing efficiency.

The present invention also provides a support frame structure, including a front bracket assembly, a rear bracket assembly, a push rod assembly, a connecting assembly for assembling and connecting the front bracket assembly, the rear bracket assembly and the push rod assembly, and the above-mentioned armrest assembly, armrest assembly The connecting part is detachably connected with the connecting component.

Preferably, the support frame structure of the present invention further includes a plug connector disposed on the connecting portion, and the plug connector and the connecting portion are detachably connected.

Preferably, the connecting component of the support frame structure of the present invention is provided with a socket matching the plug of the armrest assembly, and the armrest assembly realizes the detachable connection between the armrest assembly and the connecting assembly through the plug-in connection between the plug and the socket. . The armrest assembly is connected to the socket through the plug-in connector, which realizes the convenient and quick assembly and disassembly of the armrest assembly and the connecting assembly, which is convenient for children to ride and leave. The volume of the folded support frame structure is further reduced, which saves space and facilitates storage.

Preferably, the support frame structure of the present invention is a baby stroller structure, a baby bed frame structure or a baby seat structure.

The present invention also provides a child carrier, comprising a child carrier body and the above-mentioned support frame structure, wherein the support frame structure is used to support the child carrier body.

In order to describe the technical content and structural features of the present invention in detail, further description will be given below with reference to the embodiments and the accompanying drawings.

Referring to Figures 1 and 2, the child carrier 100 of the present invention includes a child carrier body and a support frame structure 1 for supporting the child carrier body. The following description will be given by taking the child carrier 100 as a baby stroller as an example, but it is not limited thereto, and the child carrier 100 may also be a baby crib or a baby seat. Wherein, the support frame structure 1 of the baby stroller of the present invention includes an armrest assembly 10, a front support assembly 20, a rear support assembly 30, a push rod assembly 40, and is used to assemble and connect the front support assembly 20, the rear support assembly 30 and the push rod assembly. The connecting assembly 50 of 40, the armrest assembly 10 includes two connecting parts 112 for connecting with the connecting assembly 50, the connecting part 112 is provided with a plug 51' and a mounting hole 52, and the plug 51' is provided with the mounting hole 52 and the screw The fitting is installed and fixed on the connecting portion 112 , and the connecting portion 112 and the plug 51 ′ are detachably connected through the fitting of the mounting hole 52 and the screw. The connecting assembly 50 is provided with a socket 51 matching the plug 51 ′ of the armrest assembly 10 , and the armrest assembly 10 realizes the detachable connection between the armrest assembly 10 and the connecting assembly 50 through the plug-in connection between the plug 51 ′ and the socket 51 . .

Example 1:

Referring to Figures 2 and 3, the handrail assembly 10 of the present invention includes a handrail body 11 having a hollow structure, and the handrail body 11 includes a support portion 111 and two connecting portions 112 with the same structure. Specifically, the two connecting portions with the same structure The portion 112 is formed by bending and extending along both ends of the support portion 111 , and the connecting portion 112 of the armrest assembly 10 is detachably connected to the connecting assembly 50 .

Specifically, the armrest body 11 is an integral structure, and is a rigid tube with a hollow structure, specifically a metal tube with a hollow structure, which not only has good strength, but also reduces the weight of the armrest assembly, so as to reduce the overall weight of the child carrier, which is convenient for It can be used, stored and transported, and the processing materials are less and the cost is low. At the same time, the integrated structure is convenient for processing and forming, and has good strength, durability and long service life.

The armrest body 11 is covered with a first protective layer 12 of a flexible structure, the first protective layer 12 is covered with a second protective layer 13 that is resistant to tearing, and the second protective layer 13 shields the first protective layer 12 to avoid the first protection. The layer 12 is exposed to the outside world, so the first protective layer 12 acts as a filler, because it is a flexible structure and has a buffering function, which can prevent the child from being injured by hitting the hard armrest assembly when leaning forward, and at the same time, a second protective layer 12 is provided. The protective layer 13, and the second protective layer 13 shields the first protective layer 12 from being exposed to the outside world, the second protective layer 13 can completely enclose the first protective layer 12, and can prevent the first protective layer 12 as a filler from being exposed to the outside. In the outside world, children can be prevented from accidentally swallowing the first protective layer 12 as a filler, thereby ensuring the safety of children's lives; at the same time, the protective cover structure formed by the two layers of protective layers not only has a good protective effect on children, but also has good strength, durability and service life. In particular, the second protective layer 13 adopts a leather structure, which can greatly improve the texture of the armrest assembly, that is, improve the overall grade and appearance of the children's vehicle.

More specifically, the first protective layer 12 has an elastic structure, and the elastic structure has a buffer function to prevent the child from being injured by hitting the hard armrest assembly when leaning forward; more specifically, the first protective layer 12 is a foam structure. , in this embodiment, it is specifically EVA foam. The protective layer of this structure not only has a good buffering protection effect, but also is easy to obtain and has a low procurement cost, which greatly reduces the overall cost of the armrest assembly and the children's carrier, especially the EVA foam. Cotton, the above effect is better.

Secondly, the second protective layer 13 is a leather structure, specifically PU, which has the properties of wear resistance, strong toughness, good sealing and pulling resistance. At the same time, PU is not only non-slip and durable, but also has good texture and high grade, which can greatly improve the handrail. The overall texture of the components and children's vehicles enhances the user's favor and desire to buy.

In addition, the first protective layer 12 and the second protective layer 13 are adhered and fixed by the second adhesive layer 15, and specifically, the first protective layer 12 and the second protective layer 13 are adhered by baking to melt the second adhesive layer 15. At the same time, the protective cover formed by the first protective layer 12 and the second protective layer 13 is bonded and fixed to the armrest body 11 through the first adhesive layer 14, and the first adhesive layer 14 is also melted by baking, so as to fuse the protective cover with the armrest body 11. The armrest body 11 is glued and fixed.

It can be understood that the first protective layer can also be a soft rubber structure or other foam.

It can be understood that the second protective layer may also be PVC (Polyvinyl chloride, polyvinyl chloride) or leather or other leather materials.

It can be understood that the armrest body 11 can also be a hollow plastic pipe or a solid plastic pipe.

Embodiment 2:

As shown in FIG. 4 , both ends of the second protective layer 13 are respectively bent and extended to form bending sections 131 covering both ends of the first protective layer 12 . The end is exposed to prevent children from biting and swallowing by mistake, so as to ensure the safety of children's lives.

The second protective layer 13 is bent towards the direction of the armrest body 11 to form a bent section 131 covering the end of the first protective layer 12 , and the bent section 131 forms a hollow structure passing through. The through opening of the hollow structure is exposed to the outside, so that the handrail body can easily pass through the protective cover formed by the combination of the first protective layer and the second protective layer, thereby greatly improving the production and processing efficiency of the handrail assembly.

Embodiment three:

As shown in FIG. 5 , the end of the bending section 131 further extends to the end of the armrest body 11 to at least partially fit, and the projection of the bending section 131 along the vertical cross-sectional direction falls on the interior of the armrest body 11 . The direction can refer to the direction of the arrow in Figure 5. In this way, the length and covering area of the bending section are increased, so that the end of the first protective layer is less likely to be exposed, which can better ensure the safety of children's lives.

Embodiment 4:

As shown in FIG. 6 , the bent section 131 of the second protective layer 13 bypasses the end of the first protective layer 12 and is embedded between the contact surface of the first protective layer 12 and the armrest body 11 . The armrest body 11 is fixedly connected by glue, the bending section 131 forms a hollow cylindrical structure, and the cylindrical structure is sleeved outside the armrest body. In this way, the covered length of the end of the first protective layer is increased, that is, the outer and inner sides of the end of the first protective layer are covered, and the bending section is clamped by the armrest body and the first protective layer, so that the bending section is It will not turn out, so that the end of the first protective layer can be better prevented from being exposed, so as to prevent children from biting the exposed first protective layer and swallowing them by mistake, so as to better protect the life safety of children.

Finally, with reference to FIGS. 1 to 6, since the armrest body 11 of the armrest assembly 10 of the present invention is covered with a first protective layer 12 of a flexible structure as a filler, the flexible structure has a buffer function, preventing children from When it is tilted, it hits the hard handrail assembly 10 and causes injury to the child. The first protective layer 12 of the handrail assembly 10 is covered with a second protective layer 13 that is resistant to tearing and biting. The second protective layer 13 has wear resistance, strong toughness, Good sealing and anti-pull performance, and the second protective layer 13 shields the first protective layer 12 from being exposed to the outside world, that is, the second protective layer 13 completely encloses the first protective layer 12, which can prevent the first protective layer 12 as a filler. The protective layer 12 is exposed to the outside world to prevent children from accidentally swallowing the first protective layer 12 as a filler, thereby ensuring the safety of children's lives.

The armrest assembly 10 of the support frame structure 1 of the present invention is plugged and connected to the socket 51 through the plug connector 51 ′, so as to realize the convenient and quick assembly and disassembly of the armrest assembly 10 and the connection assembly 50 , which is convenient for children to ride and leave, and supports When the rack structure 1 needs to be stored, the armrest assembly 10 can be disassembled, so as to further reduce the volume of the folded support rack structure 1, save space, and facilitate storage.

Embodiment 5:

As shown in Figures 2 and 3, taking the specific structure of the handrail assembly in the first embodiment as an example, the handrail assembly 10 includes a handrail body 11, and the handrail body 11 is covered with a first protective layer 12 of a flexible structure. A protective layer 12 is covered with a second protective layer 13. The second protective layer 13 shields the first protective layer 12 to prevent the first protective layer 12 from being exposed to the outside world. With reference to FIG. 7, the present embodiment also provides the above-mentioned handrail assembly The manufacturing method of 10, comprising the following steps:

(1) Provide the first protective layer 12 , the second protective layer 13 and the first adhesive layer 14 . The first adhesive layer 14 is adhered on the surface of the first protective layer 12 in contact with the armrest body 11 and the first adhesive layer 14 is heated. melting material;

(21) Provide a second adhesive layer 15, the second adhesive layer 15 is made of a hot melt material, and the second adhesive layer 15 is adhered and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 to form a base material layer blank;

(22) Bake the base material layer blank at 130°C for 4 minutes until the second adhesive layer 15 is completely melted, and cool the base material layer blank to form the desired base material layer;

(3) Curl the base material layer into a protective cover matching the armrest body 11 , the protective cover has a cylindrical structure, and the first adhesive layer 14 is located on the inner side of the protective cover;

(4) Insert the armrest body 11 matched with the protective sleeve into the protective sleeve to form the handrail assembly blank;

(5) Bake the handrail assembly blank at 130°C for 4 minutes until the first adhesive layer 14 is completely melted;

(6) Cool the baked handrail assembly blank to form the required handrail assembly 10 .

Specifically, the first protective layer 12 has a flexible and elastic structure, and the elastic structure has a buffer function to prevent the child from being injured by hitting the hard armrest assembly when leaning forward.

More specifically, the first protective layer 12 is EVA foam, and the second protective layer 13 is PU, so as to ensure that the protective cover formed has a good protective effect, has a texture, has a high grade, and is convenient for the protection between the two protective layers. Adhesive and fixed, its firmness is good, it is not easy to loosen or delaminate or crepe, the integrated structure is strong, the texture is good, and the appearance is good. At the same time, the two materials are easy to obtain, and the procurement cost is relatively low, which can greatly reduce production. processing cost.

Specifically, both the first adhesive layer 14 and the second adhesive layer 15 have a film structure, which has good flatness and ductility, which is convenient for the placement and spreading of the adhesive layer, and can well ensure a fixed position during subsequent baking and hot melting. , it will not be dislocated or displaced, so as to facilitate subsequent baking and hot-melting to ensure the strength after bonding, so that it is not easy to loosen between the two protective layers and between the protective cover and the armrest body, thereby ensuring the protective effect of the protective cover. .

More specifically, the armrest body 11 is a metal pipe fitting with a hollow structure, and the first adhesive layer 14 is made of TPU hot-melt adhesive film. The surface of the TPU hot-melt adhesive film is smooth, which is convenient for the armrest body 11 to pass through the protective cover, so as to facilitate production and processing and improve production. Processing efficiency, since the armrest body is made of metal, TPU hot-melt adhesive film is used for better bonding effect and more reliable bonding, but not limited to this, the first adhesive layer 113 can also be PU hot-melt adhesive film, PP hot-melt adhesive film, One of PS hot melt adhesive film and PA hot melt adhesive film.

The first adhesive layer 14 can be bonded and fixed on the contact surface of the first protective layer 12 and the armrest body 11 by means of hot pressing, so that the fixing of the first adhesive layer 14 is convenient, and the fixing is reliable, and will not fall off, shift or dislocate, Ensuring the reliability and stability of the fixation between the protective cover and the armrest body, and other methods of adhering and fixing the first adhesive layer 14 to the first protective layer 12 belong to the scope of the present invention.

The second adhesive layer 15 can be bonded and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 by means of hot pressing, so that the second adhesive layer 15 is fixed on the second protective layer 13 in advance, so as to avoid the first When the protective layer 12 and the second protective layer 13 are bonded and fixed, the second bonding layer 15 is displaced or dislocated to ensure the reliability of the bonding and fixing of the first protective layer 12 and the second protective layer 13, and the rest can realize the second bonding The adhesion and fixation of the layer 15 on the second protective layer 13 is covered by the present invention.

Of course, it can be understood that the above-mentioned baking temperature is a constant temperature, that is, it does not increase or decrease with the length of the baking time.

It can be understood that the first protective layer 12 can also be a soft rubber structure or other foam.

It can be understood that the second protective layer 13 can also be made of PVC or leather or other leather materials.

It can be understood that the first protective layer 12 and the second protective layer 13 can also be fixed by glue bonding, and the glue bonding method is simple, the fixing is reliable, and the cost is low.

It can be understood that the first adhesive layer 14 can also be adhered to the surface of the first protective layer in contact with the armrest body by vacuum adsorption or double-sided adhesive layer.

It can be understood that the second adhesive layer 15 can also be adhered and fixed on the second protective layer by means of vacuum adsorption or double-sided adhesive layer.

It can be understood that the second adhesive layer 15 can also be adhered and fixed on the contact surface of the first protective layer 12 and the second protective layer 13 by means of hot pressing, vacuum adsorption or double-sided adhesive layer, and the rest can realize the second adhesion. The adhesion and fixation of the layer 15 on the first protective layer 12 by adhering and fixing all belong to the scope of the present invention.

It can be understood that the baking temperature can also be 80°C, 85°C, 90°C, 95°C, 100°C, 105°C, 110°C, 115°C, 120°C, 125°C, 135°C, 140°C, 145°C, 150°C ℃, etc., depending on the material of the armrest body and the type of hot melt adhesive film.

It can be understood that the baking time can also be 2 minutes, 2.5 minutes, 3 minutes, 3.5 minutes, 4.5 minutes, 5 minutes, 5.5 minutes, 6 minutes, etc., depending on the material of the armrest body and the type of hot melt adhesive film. .

It can be understood that the handrail body 11 can be a hollow plastic pipe fitting or a solid plastic pipe fitting. Preferably, the first adhesive layer 14 can be made of PP hot melt adhesive film, which has better bonding effect and more reliable bonding.

Embodiment 6:

As shown in Figures 2 and 3, taking the specific structure of the handrail assembly in the first embodiment as an example, the handrail assembly 10 includes a handrail body 11, and the handrail body 11 is covered with a first protective layer 12 of a flexible structure. A protective layer 12 is covered with a second protective layer 13. The second protective layer 13 shields the first protective layer 12 to prevent the first protective layer 12 from being exposed to the outside world. With reference to FIG. 7, the present embodiment also provides the above-mentioned handrail assembly The manufacturing method of 10, comprising the following steps:

(1) Provide the first protective layer 12 , the second protective layer 13 and the first adhesive layer 14 . The first adhesive layer 14 is adhered on the surface of the first protective layer 12 in contact with the armrest body 11 and the first adhesive layer 14 is heated. melting material;

(21) Provide a second adhesive layer 15, the second adhesive layer 15 is made of a hot melt material, and the second adhesive layer 15 is adhered and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 to form a base material layer blank;

(22) Bake the base material layer blank at 130°C for 4 minutes until the second adhesive layer 15 is completely melted, and cool the base material layer blank to form the desired base material layer;

(3) Curl and sew the base material layer into a protective cover matching the armrest body 11 , the protective cover has a cylindrical structure, and the first adhesive layer 14 is located on the inner side of the protective cover;

(4) Insert the armrest body 11 matched with the protective sleeve into the protective sleeve to form the handrail assembly blank;

(5) Bake the handrail assembly blank at 130°C for 4 minutes until the first adhesive layer 14 is completely melted;

(6) Cool the baked handrail assembly blank to form the required handrail assembly 10 .

In this method, by adding sewing in step (3) to form a protective cover, not only is the method simple and convenient for production and processing, but also a sewing thread is formed at the joint of the protective cover, which can well improve the texture of the protective cover.

Specifically, the first protective layer 12 has a flexible and elastic structure, and the elastic structure has a buffer function to prevent the child from being injured by hitting the hard armrest assembly when leaning forward.

More specifically, the first protective layer 12 is EVA foam, and the second protective layer 13 is PU, so as to ensure that the protective cover formed has a good protective effect, has a texture, has a high grade, and is convenient for the protection between the two protective layers. Adhesive and fixed, its firmness is good, it is not easy to loosen or delaminate or crepe, the integrated structure is strong, the texture is good, and the appearance is good. At the same time, the two materials are easy to obtain, and the procurement cost is relatively low, which can greatly reduce production. processing cost.

Specifically, both the first adhesive layer 14 and the second adhesive layer 15 have a film structure, which has good flatness and ductility, which is convenient for the placement and spreading of the adhesive layer, and can well ensure a fixed position during subsequent baking and hot melting. , it will not be dislocated or displaced, so as to facilitate subsequent baking and hot-melting to ensure the strength after bonding, so that it is not easy to loosen between the two protective layers and between the protective cover and the armrest body, thereby ensuring the protective effect of the protective cover. .

More specifically, the armrest body 11 is a metal pipe fitting with a hollow structure, and the first adhesive layer 14 is made of TPU hot-melt adhesive film. The surface of the TPU hot-melt adhesive film is smooth, which is convenient for the armrest body 11 to pass through the protective cover, so as to facilitate production and processing and improve production. Processing efficiency, since the armrest body is made of metal, TPU hot-melt adhesive film is used for better bonding effect and more reliable bonding, but not limited to this, the first adhesive layer 113 can also be PU hot-melt adhesive film, PP hot-melt adhesive film, One of PS hot melt adhesive film and PA hot melt adhesive film.

The first adhesive layer 14 can be adhered and fixed on the contact surface of the first protective layer 12 and the armrest body 11 by means of hot pressing or vacuum adsorption, so that the fixing of the first adhesive layer 14 is convenient and reliable, and will not fall off or move. position or dislocation, to ensure the reliability and stability of the fixation between the protective cover and the armrest body, and the other bonding and fixing methods that can realize the bonding and fixing of the first adhesive layer 14 on the first protective layer 12 belong to the scope of the present invention. .

The second adhesive layer 15 can be adhered and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 by means of hot pressing or vacuum adsorption, so that the second adhesive layer 15 is fixed on the second protective layer 13 in advance, When the first protective layer 12 and the second protective layer 13 are bonded and fixed, the displacement or dislocation of the second bonding layer 15 can be avoided, so as to ensure the reliability of the bonding and fixing of the first protective layer 12 and the second protective layer 13, and the rest can be realized. Adhesion and fixation of the second adhesive layer 15 on the second protective layer 13 all belong to the scope of the present invention.

Of course, it can be understood that the above-mentioned baking temperature is a constant temperature, that is, it does not increase or decrease with the length of the baking time.

It can be understood that in step (3), the base material layer can be curled and manually sewn into a protective cover that matches the armrest body 11. The hand-stitched texture is better, and the overall quality of the protective cover, the armrest assembly and the children's vehicle can be improved. Texture and class.

It can be understood that the first protective layer 12 can also be a soft rubber structure or other foam.

It can be understood that the second protective layer 13 can also be made of PVC or leather or other leather materials.

It can be understood that the first protective layer 12 and the second protective layer 13 can also be fixed by glue bonding, and the glue bonding method is simple, the fixing is reliable, and the cost is low.

It can be understood that the second adhesive layer 15 can also be adhered and fixed on the contact surface of the first protective layer 12 and the second protective layer 13 by means of hot pressing or vacuum adsorption, and the second adhesive layer 15 can be adhered and fixed on the other side. The adhesive fixing method on the first protective layer 12 all belong to the scope covered by the present invention.

It can be understood that the baking temperature can also be 80°C, 85°C, 90°C, 95°C, 100°C, 105°C, 110°C, 115°C, 120°C, 125°C, 135°C, 140°C, 145°C, 150°C ℃, etc., depending on the material of the armrest body and the type of hot melt adhesive film.

It can be understood that the baking time can also be 2 minutes, 2.5 minutes, 3 minutes, 3.5 minutes, 4.5 minutes, 5 minutes, 5.5 minutes, 6 minutes, etc., depending on the material of the armrest body and the type of hot melt adhesive film. .

It can be understood that the handrail body 11 can be a hollow plastic pipe fitting or a solid plastic pipe fitting. Preferably, the first adhesive layer 14 can be made of PP hot melt adhesive film, which has better bonding effect and more reliable bonding.

Embodiment 7:

As shown in Figures 2 and 4, taking the specific structure of the handrail assembly in the second embodiment as an example, the handrail assembly 10 includes a handrail body 11, and the handrail body 11 is covered with a first protective layer 12 of a flexible structure. A protective layer 12 is covered with a second protective layer 13, the second protective layer 13 shields the first protective layer 12 to prevent the first protective layer 12 from being exposed to the outside world, and both ends of the second protective layer 13 are respectively bent and extended to form a package The bending sections 131 covering both ends of the first protective layer 12 are combined with FIG. 7 , this embodiment also provides a manufacturing method of the handrail assembly 10 , which includes the following steps:

(1) Provide the first protective layer 12 , the second protective layer 13 and the first adhesive layer 14 . The first adhesive layer 14 is adhered on the surface of the first protective layer 12 in contact with the armrest body 11 and the first adhesive layer 14 is heated. melting material;

(21) Provide a second adhesive layer 15, the second adhesive layer 15 is made of a hot melt material, and the second adhesive layer 15 is adhered and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 to form a base material layer blank;

(23) bending the reserved section of the edge of the second protective layer downward to form a bending section and covering the end of the first protective layer;

(22) Bake the base material layer blank in an environment of 130°C for 4 minutes until the second adhesive layer 15 is completely melted, so that the second protective layer and the bending section are completely melted with the first protective layer after the second adhesive layer is completely melted. The layer is formed by bonding and fixing, and the substrate layer blank is cooled to form the desired substrate layer;

(3) Curl the base material layer into a protective cover matching the armrest body 11 , the protective cover has a cylindrical structure, and the first adhesive layer 14 is located on the inner side of the protective cover;

(4) Insert the armrest body 11 matched with the protective sleeve into the protective sleeve to form the handrail assembly blank;

(5) Bake the handrail assembly blank at 130°C for 4 minutes until the first adhesive layer 14 is completely melted;

(6) Cool the baked handrail assembly blank to form the required handrail assembly 10 .

In this method, by setting the bending section and the processing method thereof, since the end of the first protective layer is relatively easy to be exposed, by setting the bending section, the end of the first protective layer can be well prevented from being exposed, so as to prevent children from biting And accidentally swallowed, to ensure the safety of children's lives, and the fixing of the bending section and the fixing of the protective cover and the armrest body are carried out at the same time, and the production efficiency is higher.

Specifically, the reserved section is formed by the part of the edge of the second protective layer 13 that is not covered by the first protective layer 12 when the first protective layer 12 is adhered and fixed on the second protective layer 13 , and the reserved section is further lowered. Bend to form bend segment 131 .

Specifically, the first protective layer 12 has a flexible and elastic structure, and the elastic structure has a buffer function to prevent the child from being injured by hitting the hard armrest assembly when leaning forward.

More specifically, the first protective layer 12 is EVA foam, and the second protective layer 13 is PU, so as to ensure that the protective cover formed has a good protective effect, has a texture, has a high grade, and is convenient for the protection between the two protective layers. Adhesive and fixed, its firmness is good, it is not easy to loosen or delaminate or crepe, the integrated structure is strong, the texture is good, and the appearance is good. At the same time, the two materials are easy to obtain, and the procurement cost is relatively low, which can greatly reduce production. processing cost.

Specifically, both the first adhesive layer 14 and the second adhesive layer 15 have a film structure, which has good flatness and ductility, which is convenient for the placement and spreading of the adhesive layer, and can well ensure a fixed position during subsequent baking and hot melting. , it will not be dislocated or displaced, so as to facilitate subsequent baking and hot-melting to ensure the strength after bonding, so that it is not easy to loosen between the two protective layers and between the protective cover and the armrest body, thereby ensuring the protective effect of the protective cover. .

More specifically, the armrest body 11 is a metal pipe fitting with a hollow structure, and the first adhesive layer 14 is made of TPU hot-melt adhesive film. The surface of the TPU hot-melt adhesive film is smooth, which is convenient for the armrest body 11 to pass through the protective cover, so as to facilitate production and processing and improve production. Processing efficiency, since the armrest body is made of metal, TPU hot-melt adhesive film is used for better bonding effect and more reliable bonding, but not limited to this, the first adhesive layer 113 can also be PU hot-melt adhesive film, PP hot-melt adhesive film, One of PS hot melt adhesive film and PA hot melt adhesive film.

The first adhesive layer 14 can be adhered and fixed on the contact surface of the first protective layer 12 and the armrest body 11 by means of hot pressing or vacuum adsorption, so that the fixing of the first adhesive layer 14 is convenient and reliable, and will not fall off or move. position or dislocation, to ensure the reliability and stability of the fixation between the protective cover and the armrest body, and the other bonding and fixing methods that can realize the bonding and fixing of the first adhesive layer 14 on the first protective layer 12 belong to the scope of the present invention. .

The second adhesive layer 15 can be adhered and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 by means of hot pressing or vacuum adsorption, so that the second adhesive layer 15 is fixed on the second protective layer 13 in advance, When the first protective layer 12 and the second protective layer 13 are bonded and fixed, the displacement or dislocation of the second bonding layer 15 can be avoided, so as to ensure the reliability of the bonding and fixing of the first protective layer 12 and the second protective layer 13, and the rest can be realized. Adhesion and fixation of the second adhesive layer 15 on the second protective layer 13 all belong to the scope of the present invention.

Of course, it can be understood that the above-mentioned baking temperature is a constant temperature, that is, it does not increase or decrease with the length of the baking time.

It can be understood that step (23) can also be located after step (22), that is, after the first protective layer and the second protective layer are glued and fixed, the bending section is glued and fixed, so that the bending section can be well fixed. The segments are glued and fixed to ensure the wrapping effect on the end of the first protective layer.

It can be understood that the first protective layer 12 can also be a soft rubber structure or other foam.

It can be understood that the second protective layer 13 can also be made of PVC or leather or other leather materials.

It can be understood that the first protective layer 12 and the second protective layer 13 can also be fixed by glue bonding, and the glue bonding method is simple, the fixing is reliable, and the cost is low.

It can be understood that, the bending section 131 can also be fixed with the first protective layer through glue.

It can be understood that the second adhesive layer 15 can also be adhered and fixed on the contact surface of the first protective layer 12 and the second protective layer 13 by means of hot pressing or vacuum adsorption, and the second adhesive layer 15 can be adhered and fixed on the other side. The adhesive fixing method on the first protective layer 12 all belong to the scope covered by the present invention.

It can be understood that in step (3), the base material layer can be curled and sewn or manually sewn into a protective cover that matches the armrest body 11 , which is not only simple and convenient for production and processing, but also makes the joint of the protective cover form a stitch. It can improve the overall texture and grade of the protective cover, armrest components and children's vehicle.

It can be understood that the baking temperature can also be 80°C, 85°C, 90°C, 95°C, 100°C, 105°C, 110°C, 115°C, 120°C, 125°C, 135°C, 140°C, 145°C, 150°C ℃, etc., depending on the material of the armrest body and the type of hot melt adhesive film.

It can be understood that the baking time can also be 2 minutes, 2.5 minutes, 3 minutes, 3.5 minutes, 4.5 minutes, 5 minutes, 5.5 minutes, 6 minutes, etc., depending on the material of the armrest body and the type of hot melt adhesive film. .

It can be understood that the handrail body 11 can be a hollow plastic pipe fitting or a solid plastic pipe fitting. Preferably, the first adhesive layer 14 can be made of PP hot melt adhesive film, which has better bonding effect and more reliable bonding.

Embodiment 8:

As shown in Figures 2 and 5, taking the specific structure of the handrail assembly in the third embodiment as an example, the handrail assembly 10 includes a handrail body 11, and the handrail body 11 is covered with a first protective layer 12 of a flexible structure, and the A protective layer 12 is covered with a second protective layer 13, the second protective layer 13 shields the first protective layer 12 to prevent the first protective layer 12 from being exposed to the outside world, and both ends of the second protective layer 13 are respectively bent and extended to form a package The bending sections 131 covering both ends of the first protective layer 12, the ends of the bending sections 131 extend to the end of the armrest body 11 and at least partially fit with the end of the armrest body 11. Combined with FIG. 7, this embodiment Also provided is a manufacturing method of the armrest assembly 10, comprising the following steps:

(1) Provide the first protective layer 12 , the second protective layer 13 and the first adhesive layer 14 . The first adhesive layer 14 is adhered on the surface of the first protective layer 12 in contact with the armrest body 11 and the first adhesive layer 14 is heated. melting material;

(21) Provide a second adhesive layer 15, the second adhesive layer 15 is made of a hot melt material, and the second adhesive layer 15 is adhered and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 to form a base material layer blank;

(23) Bend the reserved section of the edge of the second protective layer downward to form a bent section and cover the end of the first protective layer, and the end of the bent section extends to the end of the handrail body and is connected with the handrail body. The ends are at least partially fitted;

(22) Bake the base material layer blank in an environment of 130°C for 4 minutes until the second adhesive layer 15 is completely melted, so that the second protective layer and the bending section are completely melted with the first protective layer after the second adhesive layer is completely melted. The layer is formed by bonding and fixing, and the substrate layer blank is cooled to form the desired substrate layer;

(3) Curl the base material layer into a protective cover matching the armrest body 11 , the protective cover has a cylindrical structure, and the first adhesive layer 14 is located on the inner side of the protective cover;

(4) Insert the armrest body 11 matched with the protective sleeve into the protective sleeve to form the handrail assembly blank;

(5) Bake the handrail assembly blank at 130°C for 4 minutes until the first adhesive layer 14 is completely melted;

(6) Cool the baked handrail assembly blank to form the required handrail assembly 10 .

Specifically, the reserved section is formed by the part of the edge of the second protective layer 13 that is not covered by the first protective layer 12 when the first protective layer 12 is adhered and fixed on the second protective layer 13 , and the reserved section is further lowered. Bend to form bend segment 131 .

In this method, by setting the bending section and the processing method thereof, and extending the end of the bending section to the end of the handrail body and at least partially abutting the end of the handrail body, the length and wrapping of the bending section are increased. The coverage area makes the end of the first protective layer more difficult to be exposed, which can better protect the life safety of children.

Specifically, the reserved section is formed by the part of the edge of the second protective layer 13 that is not covered by the first protective layer 12 when the first protective layer 12 is adhered and fixed on the second protective layer 13 , and the reserved section is further lowered. Bend to form bend segment 131 .

Specifically, the first protective layer 12 has a flexible and elastic structure, and the elastic structure has a buffer function to prevent the child from being injured by hitting the hard armrest assembly when leaning forward.

More specifically, the first protective layer 12 is EVA foam, and the second protective layer 13 is PU, so as to ensure that the protective cover formed has a good protective effect, has a texture, has a high grade, and is convenient for the protection between the two protective layers. Adhesive and fixed, its firmness is good, it is not easy to loosen or delaminate or crepe, the integrated structure is strong, the texture is good, and the appearance is good. At the same time, the two materials are easy to obtain, and the procurement cost is relatively low, which can greatly reduce production. processing cost.

Specifically, both the first adhesive layer 14 and the second adhesive layer 15 have a film structure, which has good flatness and ductility, which is convenient for the placement and spreading of the adhesive layer, and can well ensure a fixed position during subsequent baking and hot melting. , it will not be dislocated or displaced, so as to facilitate subsequent baking and hot-melting to ensure the strength after bonding, so that it is not easy to loosen between the two protective layers and between the protective cover and the armrest body, thereby ensuring the protective effect of the protective cover. .

More specifically, the armrest body 11 is a metal pipe fitting with a hollow structure, and the first adhesive layer 14 is made of TPU hot-melt adhesive film. The surface of the TPU hot-melt adhesive film is smooth, which is convenient for the armrest body 11 to pass through the protective cover, so as to facilitate production and processing and improve production. Processing efficiency, since the armrest body is made of metal, TPU hot-melt adhesive film is used for better bonding effect and more reliable bonding, but not limited to this, the first adhesive layer 113 can also be PU hot-melt adhesive film, PP hot-melt adhesive film, One of PS hot melt adhesive film and PA hot melt adhesive film.

The first adhesive layer 14 can be adhered and fixed on the contact surface of the first protective layer 12 and the armrest body 11 by means of hot pressing or vacuum adsorption, so that the fixing of the first adhesive layer 14 is convenient and reliable, and will not fall off or move. position or dislocation, to ensure the reliability and stability of the fixation between the protective cover and the armrest body, and the other bonding and fixing methods that can realize the bonding and fixing of the first adhesive layer 14 on the first protective layer 12 belong to the scope of the present invention. .

The second adhesive layer 15 can be adhered and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 by means of hot pressing or vacuum adsorption, so that the second adhesive layer 15 is fixed on the second protective layer 13 in advance, When the first protective layer 12 and the second protective layer 13 are bonded and fixed, the displacement or dislocation of the second bonding layer 15 can be avoided, so as to ensure the reliability of the bonding and fixing of the first protective layer 12 and the second protective layer 13, and the rest can be realized. Adhesion and fixation of the second adhesive layer 15 on the second protective layer 13 all belong to the scope of the present invention.

Of course, it can be understood that the above-mentioned baking temperature is a constant temperature, that is, it does not increase or decrease with the length of the baking time.

It can be understood that step (23) can also be located after step (22), that is, after the first protective layer and the second protective layer are glued and fixed, the bending section is glued and fixed, so that the bending section can be well fixed. The segments are glued and fixed to ensure the wrapping effect on the end of the first protective layer.

It can be understood that the first protective layer 12 can also be a soft rubber structure or other foam.

It can be understood that the second protective layer 13 can also be made of PVC or leather or other leather materials.

It can be understood that the first protective layer 12 and the second protective layer 13 can also be fixed by glue bonding, and the glue bonding method is simple, the fixing is reliable, and the cost is low.

It can be understood that, the bending section 131 can also be fixed with the first protective layer through glue.

It can be understood that the second adhesive layer 15 can also be adhered and fixed on the contact surface of the first protective layer 12 and the second protective layer 13 by means of hot pressing or vacuum adsorption, and the second adhesive layer 15 can be adhered and fixed on the other side. The adhesive fixing method on the first protective layer 12 all belong to the scope covered by the present invention.

It can be understood that in step (3), the base material layer can be curled and sewn or manually sewn into a protective cover that matches the armrest body 11 , which is not only simple and convenient for production and processing, but also makes the joint of the protective cover form a stitch. It can improve the overall texture and grade of the protective cover, armrest components and children's vehicle.

It can be understood that the baking temperature can also be 80°C, 85°C, 90°C, 95°C, 100°C, 105°C, 110°C, 115°C, 120°C, 125°C, 135°C, 140°C, 145°C, 150°C ℃, etc., depending on the material of the armrest body and the type of hot melt adhesive film.

It can be understood that the baking time can also be 2 minutes, 2.5 minutes, 3 minutes, 3.5 minutes, 4.5 minutes, 5 minutes, 5.5 minutes, 6 minutes, etc., depending on the material of the armrest body and the type of hot melt adhesive film. .

It can be understood that the handrail body 11 can be a hollow plastic pipe fitting or a solid plastic pipe fitting. Preferably, the first adhesive layer 14 can be made of PP hot melt adhesive film, which has better bonding effect and more reliable bonding.

Embodiment 9:

As shown in Figures 2 and 6, taking the specific structure of the handrail assembly in the fourth embodiment as an example, the handrail assembly 10 includes a handrail body 11, and the handrail body 11 is covered with a first protective layer 12 of a flexible structure, and the first protective layer 12 is a flexible structure. A protective layer 12 is covered with a second protective layer 13, the second protective layer 13 shields the first protective layer 12 to prevent the first protective layer 12 from being exposed to the outside world, and both ends of the second protective layer 13 are respectively bent and extended to form a package The bending sections 131 covering both ends of the first protective layer 12 , the bending sections 131 bypass the ends of the first protective layer 12 and are embedded between the contact surfaces of the first protective layer 12 and the armrest body 11 . The outer surface of the armrest body 11 is attached and fixed, and as shown in FIG. 7 , this embodiment also provides a manufacturing method of the armrest assembly 10 , which includes the following steps:

(1) Provide the first protective layer 12 , the second protective layer 13 and the first adhesive layer 14 . The first adhesive layer 14 is adhered on the surface of the first protective layer 12 in contact with the armrest body 11 and the first adhesive layer 14 is heated. melting material;

(21) Provide a second adhesive layer 15, the second adhesive layer 15 is made of a hot melt material, and the second adhesive layer 15 is adhered and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 to form a base material layer blank;

(23) Bend the reserved section of the edge of the second protective layer 13 downward to form a bent section 131 and cover the end of the first protective layer 12 , and the bent section 131 bypasses the end of the first protective layer 12 and is embedded between the contact surface of the first protective layer 12 and the armrest body 11, and the bending section 131 is attached and fixed to the armrest body 11;

(22) Bake the base material layer blank at 130°C for 4 minutes until the second adhesive layer 15 is completely melted, so that the second protective layer 13 and the bending section 131 are completely melted with the second adhesive layer 15 after the second adhesive layer 15 is completely melted. The first protective layer 12 and the armrest body 11 are bonded and fixed, and the base material layer blank is cooled to form the desired base material layer;

(3) Curl the base material layer into a protective cover matching the armrest body 11 , the protective cover has a cylindrical structure, and the first adhesive layer 14 is located on the inner side of the protective cover;

(4) Insert the armrest body 11 matched with the protective sleeve into the protective sleeve to form the handrail assembly blank;

(5) Bake the handrail assembly blank at 130°C for 4 minutes until the first adhesive layer 14 is completely melted;

(6) Cool the baked handrail assembly blank to form the required handrail assembly 10 .

Specifically, the reserved section is formed by the part of the edge of the second protective layer 13 that is not covered by the first protective layer 12 when the first protective layer 12 is adhered and fixed on the second protective layer 13 , and the reserved section is further lowered. Bend to form bend segment 131 .

In this method, by setting the bending section and the processing method thereof, and bypassing the end of the first protective layer and embedding the bending section between the contact surface of the first protective layer and the handrail body, the bending section and the handrail body connect. In this way, the covered length of the end of the first protective layer is increased, that is, the outer and inner sides of the end of the first protective layer are covered, and the bending section is clamped by the armrest body and the first protective layer, so that the bending section is It will not turn out, so that the end of the first protective layer can be better prevented from being exposed, so as to prevent children from biting the exposed first protective layer and swallowing them by mistake, so as to better protect the life safety of children.

Specifically, the reserved section is formed by the part of the edge of the second protective layer 13 that is not covered by the first protective layer 12 when the first protective layer 12 is adhered and fixed on the second protective layer 13 , and the reserved section is further lowered. Bend to form bend segment 131 .

Specifically, the first protective layer 12 has a flexible and elastic structure, and the elastic structure has a buffer function to prevent the child from being injured by hitting the hard armrest assembly when leaning forward.

More specifically, the first protective layer 12 is EVA foam, and the second protective layer 13 is PU, so as to ensure that the protective cover formed has a good protective effect, has a texture, has a high grade, and is convenient for the protection between the two protective layers. Adhesive and fixed, its firmness is good, it is not easy to loosen or delaminate or crepe, the integrated structure is strong, the texture is good, and the appearance is good. At the same time, the two materials are easy to obtain, and the procurement cost is relatively low, which can greatly reduce production. processing cost.

Specifically, both the first adhesive layer 14 and the second adhesive layer 15 have a film structure, which has good flatness and ductility, which is convenient for the placement and spreading of the adhesive layer, and can well ensure a fixed position during subsequent baking and hot melting. , it will not be dislocated or displaced, so as to facilitate subsequent baking and hot-melting to ensure the strength after bonding, so that it is not easy to loosen between the two protective layers and between the protective cover and the armrest body, thereby ensuring the protective effect of the protective cover. .

More specifically, the armrest body 11 is a metal pipe fitting with a hollow structure, and the first adhesive layer 14 is made of TPU hot-melt adhesive film. The surface of the TPU hot-melt adhesive film is smooth, which is convenient for the armrest body 11 to pass through the protective cover, so as to facilitate production and processing and improve production. Processing efficiency, since the armrest body is made of metal, TPU hot-melt adhesive film is used for better bonding effect and more reliable bonding, but not limited to this, the first adhesive layer 113 can also be PU hot-melt adhesive film, PP hot-melt adhesive film, One of PS hot melt adhesive film and PA hot melt adhesive film.

The first adhesive layer 14 can be adhered and fixed on the contact surface of the first protective layer 12 and the armrest body 11 by means of hot pressing or vacuum adsorption, so that the fixing of the first adhesive layer 14 is convenient and reliable, and will not fall off or move. position or dislocation, to ensure the reliability and stability of the fixation between the protective cover and the armrest body, and the other bonding and fixing methods that can realize the bonding and fixing of the first adhesive layer 14 on the first protective layer 12 belong to the scope of the present invention. .

The second adhesive layer 15 can be adhered and fixed on the contact surface of the second protective layer 13 and the first protective layer 12 by means of hot pressing or vacuum adsorption, so that the second adhesive layer 15 is fixed on the second protective layer 13 in advance, When the first protective layer 12 and the second protective layer 13 are bonded and fixed, the displacement or dislocation of the second bonding layer 15 can be avoided, so as to ensure the reliability of the bonding and fixing of the first protective layer 12 and the second protective layer 13, and the rest can be realized. Adhesion and fixation of the second adhesive layer 15 on the second protective layer 13 all belong to the scope of the present invention.

Of course, it can be understood that the above-mentioned baking temperature is a constant temperature, that is, it does not increase or decrease with the length of the baking time.

It can be understood that step (23) can also be located after step (22), that is, after the first protective layer and the second protective layer are glued and fixed, the bending section is glued and fixed, so that the bending section can be well fixed. The segments are glued and fixed to ensure the wrapping effect on the end of the first protective layer.

It can be understood that the first protective layer 12 can also be a soft rubber structure or other foam.

It can be understood that the second protective layer 13 can also be made of PVC or leather or other leather materials.

It can be understood that the first protective layer 12 and the second protective layer 13 can also be fixed by glue bonding, and the glue bonding method is simple, the fixing is reliable, and the cost is low.

It can be understood that, the bending section 131 can also be fixed with the first protective layer through glue.

It can be understood that the second adhesive layer 15 can also be adhered and fixed on the contact surface of the first protective layer 12 and the second protective layer 13 by means of hot pressing or vacuum adsorption, and the second adhesive layer 15 can be adhered and fixed on the other side. The adhesive fixing method on the first protective layer 12 all belong to the scope covered by the present invention.

It can be understood that in step (3), the base material layer can be curled and sewn or manually sewn into a protective cover that matches the armrest body 11 , which is not only simple and convenient for production and processing, but also makes the joint of the protective cover form a stitch. It can improve the overall texture and grade of the protective cover, armrest components and children's vehicle.

It can be understood that the baking temperature can also be 80°C, 85°C, 90°C, 95°C, 100°C, 105°C, 110°C, 115°C, 120°C, 125°C, 135°C, 140°C, 145°C, 150°C ℃, etc., depending on the material of the armrest body and the type of hot melt adhesive film.

It can be understood that the baking time can also be 2 minutes, 2.5 minutes, 3 minutes, 3.5 minutes, 4.5 minutes, 5 minutes, 5.5 minutes, 6 minutes, etc., depending on the material of the armrest body and the type of hot melt adhesive film. .

It can be understood that the handrail body 11 can be a hollow plastic pipe fitting or a solid plastic pipe fitting. Preferably, the first adhesive layer 14 can be made of PP hot melt adhesive film, which has better bonding effect and more reliable bonding.

Of course, it can also be understood that the armrest assembly referred to in the above embodiments is a superordinate concept, that is, the part that is held by the occupant or the stroller can be regarded as the armrest assembly, not only refers to the baby stroller facing the The front armrest of the occupant can also refer to the rider or handlebar or handshake on the frame. The above are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

1: Support frame structure 10: Armrest assembly 11: Armrest body 12: The first protective layer 13: Second protective layer 14: The first adhesive layer 15: Second adhesive layer 20: Front bracket assembly 30: Rear bracket assembly 40: Push rod assembly 50: Connect Components 51: socket 51': Connector 52: Mounting holes 100: Children's Vehicles 111: Support Department 112: Connection part 131: Bending segment

Fig. 1 is a schematic diagram of the structure of the children's carrier of the present invention. Figure 2 is a schematic structural diagram of the handrail assembly of the present invention. FIG. 3 is a partial cross-sectional structural schematic diagram of Embodiment 1 of the handrail assembly of the present invention. FIG. 4 is a partial cross-sectional structural schematic diagram of the second embodiment of the handrail assembly of the present invention. FIG. 5 is a partial cross-sectional structural schematic diagram of Embodiment 3 of the handrail assembly in the present invention. FIG. 6 is a partial cross-sectional structural schematic diagram of Embodiment 4 of the handrail assembly according to the present invention. FIG. 7 is a flow chart of the method of manufacturing the armrest assembly in the present invention.

10: Armrest assembly

11: Armrest body

51': Connector

52: Mounting holes

111: Support Department

112: Connection part

Claims (27)

A handrail assembly, comprising a handrail body, the handrail body is covered with a first protective layer of a flexible structure, the first protective layer is covered with a second protective layer, and the second protective layer shields the first protective layer to avoid The first protective layer is exposed to the outside world. The handrail assembly as claimed in claim 1, wherein two ends of the second protective layer are respectively bent and extended to form bent sections covering both ends of the first protective layer. The armrest assembly as claimed in claim 2, wherein the end of the bent section extends to the end of the armrest body and at least partially fits with the end of the armrest body. The handrail assembly according to claim 2, wherein the bent section of the second protective layer bypasses the end of the first protective layer and is embedded between the contact surface of the first protective layer and the handrail body, the The bending section is connected with the handrail body. The handrail assembly according to claim 1, wherein the handrail body is a rigid tube with a hollow structure. The armrest assembly as claimed in claim 1, wherein the armrest body is an integral structure. The armrest assembly as claimed in claim 1, wherein the first protective layer has an elastic structure. The armrest assembly according to claim 7, wherein the first protective layer is a soft rubber structure or a foam structure. The armrest assembly of claim 1, wherein the second protective layer is a leather structure. A method of manufacturing a handrail assembly, comprising the following steps: (1) Provide a first protective layer, a second protective layer and a first adhesive layer, the first adhesive layer is provided on the surface of the first protective layer in contact with a handrail body, and the first adhesive layer is thermal melting material; (2) adhering and fixing the first protective layer and the second protective layer to form a base material layer of an integrated structure; (3) curling the base material layer into a protective cover matched with the handrail body, the protective cover has a cylindrical structure, and the first adhesive layer is located on the inner side of the protective cover; (4) Insert the armrest body matched with the protective sleeve into the protective sleeve to form a handrail assembly blank; (5) baking the handrail assembly blank until the first adhesive layer is completely melted; and (6) Cooling the baked handrail assembly blank to form the required handrail assembly. The manufacturing method of the handrail assembly according to claim 10, wherein the step (2) further comprises the following steps: (21) providing a second adhesive layer, the second adhesive layer is a hot melt material, and bonding the second adhesive layer A layer is provided between the first protective layer and the second protective layer; and (22) the first protective layer and the second protective layer are bonded together by high temperature baking to form the base material layer. The method for manufacturing a handrail assembly as claimed in claim 10, wherein the step (2) further comprises the steps of: (21) applying glue between the first protective layer and the second protective layer; and (22) waiting After the glue is solidified, the first protective layer and the second protective layer are bonded together to form the base material layer. The method for manufacturing a handrail assembly according to claim 11 or 12, wherein both ends of the second protective layer are respectively bent and extended to form bent sections covering both ends of the first protective layer, and the step (2) further comprises the following steps: Step: (23) The bending section is fixedly connected with the first protective layer. The method for manufacturing a handrail assembly as claimed in claim 13, wherein the step (23) is before the step (22), and the bending section can be fixed to the first protective layer together with the second protective layer. The method for manufacturing a handrail assembly according to claim 13, wherein in the step (23), the bending section is fixedly connected to the first protective layer by baking the second adhesive layer; or, in the step (23) The bent section is fixedly connected with the first protective layer through glue. The manufacturing method of the armrest assembly according to claim 10, wherein the step (3) further comprises the step of curling the base material layer and sewing or hand sewing the protective cover matching the armrest body. The method for manufacturing a handrail assembly according to claim 11, wherein the first adhesive layer and the second adhesive layer are in a film structure. The manufacturing method of the handrail assembly according to claim 17, wherein the first adhesive layer and the second adhesive layer are selected from PU hot melt adhesive film, TPU hot melt adhesive film, PP hot melt adhesive film, PS hot melt adhesive film And one of the PA hot melt adhesive films. The method for manufacturing a handrail assembly as claimed in claim 18, wherein the first adhesive layer and the second adhesive layer use different hot melt adhesive films. The method for manufacturing a handrail assembly according to claim 11 or 17, wherein the first adhesive layer is fixed with the first protective layer by heat pressing, vacuum adsorption or double-sided adhesive layer; and/or, the second adhesive layer The second protective layer or the first protective layer is bonded and fixed by hot pressing or vacuum adsorption or the double-sided adhesive layer. The method for manufacturing a handrail assembly according to claim 11, wherein the temperature range of the baking in the step (5) and the step (22) is 80°C to 150°C. The method for manufacturing an armrest assembly according to claim 11, wherein the baking time in the step (5) and the step (22) ranges from 2 minutes to 6 minutes. A support frame structure, comprising a front bracket assembly, a rear bracket assembly, a push rod assembly, a connecting assembly for assembling and connecting the front bracket assembly, the rear bracket assembly and the push rod assembly, and as claimed in item 1 to The armrest assembly described in any one of 9, wherein a connecting portion of the armrest assembly is detachably connected to the connecting assembly. The support frame structure as claimed in claim 23 further includes a plug connector disposed on the connecting portion, and the plug connector is detachably connected to the connecting portion. The support frame structure as claimed in claim 24, wherein a socket matched with the plug of the armrest assembly is disposed on the connection member, and the armrest assembly realizes the plug connection through the plug connection and the socket. The armrest assembly is detachably connected with the connecting assembly. The support frame structure of claim 23, wherein the support frame structure is a baby stroller structure or a baby bed frame structure or an infant seat structure. A child carrier includes a child carrier body and the support frame structure as claimed in claim 23, the support frame structure is used to support the child carrier body.

Images