CN114684238A

CN114684238A - Backrest limiting assembly of baby carriage and baby carriage

Info

Publication number: CN114684238A
Application number: CN202011589601.2A
Authority: CN
Inventors: 房立武
Original assignee: Wonderland Switzerland AG
Current assignee: Wonderland Switzerland AG
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-07-01
Also published as: JP7214826B2; JP2022104832A

Abstract

The utility model provides a spacing subassembly and perambulator lean against of child's bike, lean against spacing subassembly including two sides that are located the left and right sides protect the frame, the top that is located the upside protects the frame and be located the back of the rear side and lean against the frame, wherein, the top protects the frame and leans against the frame in the pivoted ground between side protects the frame and leans against the frame, moreover, side protects the frame and leans against the frame via last pivot and lower pivot pin joint in the frame respectively, make side protect the frame, the top protect the frame, lean against the frame and constitute a four-bar linkage, wherein, the back of the frame has two lateral parts that are located the left and right sides, at least one lateral part and the side that corresponds one side protect the frame along vertical coincidence, thereby make this lateral part of back of the frame can be blockked by the position with the frame pin joint of side protection frame when pivoting forward around lower pivot to predetermineeing the position. According to this disclosed child's bike lean against spacing subassembly can carry on spacingly to leaning against of seat, avoids leaning against and surpasss the frame main part when leaning forward the regulation for child's bike's factor of safety is higher.

Description

Backrest limiting assembly of baby carriage and baby carriage

Technical Field

The present disclosure relates to a child's vehicle, and more particularly, to a back stop assembly for a child's vehicle.

Background

In order to adapt to different requirements of children for sitting and lying on the child car, the angle of the seat backrest of the child car is often required to be adjusted in the using process, but the seat of the existing child car is inconvenient to adjust the angle of the seat backrest, and particularly, the seat backrest is easy to incline forwards to exceed the frame main body and cannot be limited when being adjusted, so that potential safety hazards exist.

Therefore, there is a need to develop a backrest limiting device for a child car, which can avoid the above problems in the prior art.

Disclosure of Invention

In view of the above-mentioned defects in the prior art, the object of the present disclosure is to provide a backrest limiting assembly for a child's vehicle and a child's vehicle, wherein when a user adjusts the backrest forward, the backrest limiting assembly can limit the backrest, so as to prevent the backrest of a seat from exceeding a frame main body during forward tilting adjustment, and thus the safety coefficient of the child's vehicle is higher.

To achieve these and other advantages and in accordance with the purpose of the present disclosure, as embodied and broadly described herein, there is provided a back rest limiting assembly of a child car for limiting an adjusted position of a back rest of the child car, the back rest limiting assembly being mounted on a frame of the child car, including two side guards on left and right sides of the back rest limiting assembly, a top guard on an upper side of the back rest limiting assembly, and a back rest on a rear side of the back rest limiting assembly, wherein the top guard is pivotably connected between the side guards and the back rest, and the side guards and the back rest are pivoted to the frame via upper and lower pivots, respectively, such that the side guards, the top guard, the back rest and the frame constitute a four-bar mechanism, wherein the back rest has two side portions on left and right sides, at least one side part and the side protection frame on the corresponding side are vertically overlapped, so that the side part of the backrest frame can be blocked by the part of the side protection frame pivoted with the frame when the side part of the backrest frame is pivoted forwards to a preset position around the lower pivot.

In one embodiment, each of the side guards is elongated and has a first end pivotally connected to the frame via the upper pivot and a second end pivotally connected to the top guard.

In one embodiment, each of the side frames is an elongated plate-shaped member, and the plate-shaped member has a hollow structure.

In one embodiment, the two side portions of the backrest frame are both elongated, and the lower end of each side portion is pivotally connected to the frame via the lower pivot.

In one embodiment, the back rest frame further has an upper portion connecting the two side portions together, the top frame being pivotally connected to the upper portion of the back rest frame.

In one embodiment, the top protective frame is a plate-shaped member having a hollow structure and has an upper portion and a lower portion, the side protective frame is pivotally connected to the upper portion of the top protective frame, and the backrest frame is pivotally connected to the lower portion of the top protective frame.

In one embodiment, each side portion of the back frame is formed with an escape bend at a position corresponding to the upper pivot so that the back frame is not blocked by the side frames before pivoting forward to the preset position.

In one embodiment, the avoidance line is formed by bending or recessing each side portion of the backrest frame at a position corresponding to the upper pivot.

In one embodiment, the frame includes a rider located at an upper portion of the frame, the back restraint assembly being mounted on the rider.

In one embodiment, the frame comprises a rear frame located at a lower portion of the frame, and a middle upright is fixed on the rear frame, so that the backrest limiting component can be mounted on the middle upright.

In another aspect, the present disclosure provides a child vehicle including a back stop assembly as described above.

The beneficial effects of this disclosure lie in, can carry on spacingly to leaning against of seat according to this disclosed perambulator lean against spacing subassembly, avoid leaning against and surpass the frame main part when leaning forward the regulation for perambulator's factor of safety is higher.

The foregoing and other objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of the present disclosure when taken in conjunction with the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the concepts of the disclosure.

In the drawings:

FIG. 1 is a perspective view of a child's vehicle including a back stop assembly according to the present disclosure.

Fig. 2 is a side view of the child's vehicle in fig. 1.

Fig. 3 is a top view of the child's vehicle in fig. 1.

Fig. 4 is a perspective view of the backrest frame of the backrest limiting assembly of fig. 1 pivoted to a predetermined position.

Fig. 5 is an enlarged view of a portion of the structure in the block area of fig. 4.

List of reference numerals

1 perambulator

10 spacing subassembly of backrest

11 side guard rack

111 first end

112 second end

12 top protective frame

121 lower part

122 upper part

13 backrest frame

131 side part

1311 lower end

1312 avoiding bend

132 upper part

20 driver

30 neutral lever

40 rear frame

O1 upper pivot

O2 lower pivot

Detailed Description

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings. However, the disclosure should not be construed as limited to the embodiments set forth herein, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the embodiments.

Existing child cars generally include a frame and a seat that includes a backrest that is generally fixedly or adjustably pivoted to the frame.

In a child vehicle 1 according to the present disclosure, the backrest (not shown) of the seat is mounted on the frame via a backrest restraint assembly 10. The backrest limiting assembly 10 can not only support the backrest, but also limit the adjustment position of the backrest. In one embodiment the frame comprises a rider 20 located at an upper portion of the frame, the rider 20 being for pushing and pulling the child's vehicle 1, the back stop assembly 10 being mounted on the rider 20. In another embodiment, the frame includes a rear frame 40 located at the lower portion of the frame, the rear frame 40 having rear wheels and having a central rod 30 secured thereto, the central rod 30 being securable in position on the rear frame 40 such that the back stop assembly 10 can be mounted on the central rod 30, as best seen in figures 1 and 3, which is particularly suitable for children's vehicles in which the rider 20 can be reversed front to back. Hereinafter, the present disclosure will be described by way of example of the back restraint assembly 10 being mounted on the middle upright 30, but it should be understood that the present disclosure is not limited thereto. Meanwhile, in order to facilitate the illustration of the construction of the child car 1, only the frame structure of the child car 1 and its back restraint assembly 10 is shown in the drawings of the present disclosure, and accessories such as a seat and a sunshade are omitted.

For convenience of description with reference to the drawings, the present disclosure will refer to the direction in which the child vehicle 1 advances as "front", the direction in which the child vehicle 1 retreats as "rear", and both sides in the lateral direction of the child vehicle 1 as "left and right sides". It should be clearly understood, however, that the scope of the present disclosure is not limited to any particular orientation described herein.

As shown in fig. 1 to 4, the backrest restraint assembly 10 includes: two side protection frames 11 positioned at two sides of the backrest limiting component 10; a top guard frame 12 positioned at the upper side of the backrest limit component 10; and a back frame 13 positioned at a rear side of the back stopper assembly 10.

Wherein the top guard frame 12 is pivotally connected between the side guard frames 11 and the back rest frame 13, and the side guard frames 11 and the back rest frame 13 are pivotally connected to the middle upright 30 via upper pivot O1 and lower pivot O2, respectively, so that the side guard frames 11, the top guard frames 12, the back rest frame 13 and the middle upright 30 constitute a four-bar mechanism, as best seen in fig. 2. Among them, the neutral bar 30 corresponds to a frame (i.e., a stationary bar) in the four-bar mechanism, the side guard frames 11 and the back frame 13 correspond to side link frames (i.e., a bar connected to the frame) in the four-bar mechanism, and the top guard frame 12 corresponds to a link bar (i.e., a bar connected to two side link frames without being connected to the frame) in the four-bar mechanism. The side frames 11, the top frame 12 and the back frame 13 are movable members in a four-bar mechanism and perform a rocking movement with respect to the center vertical rod 30. As shown in fig. 3, in the case where the back frame 13 has two side portions 131 at the left and right sides and at least one side portion 131 vertically coincides with the side frame 11 at the corresponding side, the side frame 11, the top frame 12, the back frame 13, and the middle upright rod 30 actually constitute a planar four-bar mechanism.

The operation of the back rest limit assembly 10 according to the present disclosure will now be described.

When the backrest limiting assembly 10 configured as described above pivots forward relative to the middle upright rod 30, the backrest frame 13 also pivots forward to be close to the side protective frame 11, and since at least one side portion 131 of the backrest frame 13 and the side protective frame 11 on the corresponding side vertically coincide, when the backrest frame 13 pivots forward to a preset position, the side portion 131 of the backrest frame 13 is blocked by the portion of the side protective frame 11 pivoted to the middle rod 30 and cannot pivot forward any more, as best seen in fig. 4 and 5, so that the whole backrest limiting assembly 10 cannot pivot forward any more, and thus, the backrest supported by the backrest limiting assembly 10 cannot tilt forward too far beyond the main body of the vehicle frame, thereby achieving the backrest limiting function.

The preset position is an extreme position of the backrest 13 pivoting forward about the lower pivot O2, and can be set according to actual needs. In addition, the preset position that can be reached when the back frame 13 pivots forward can be adjusted by changing the respective lengths of the side guard frames 11, the top guard frame 12, and the back frame 13 and the distance between the upper pivot O1 and the lower pivot O2.

Next, various embodiments of the back rest limit assembly 10 according to the present disclosure will be described.

The side frames 11 protect a child seated on the seat from both sides. Preferably, the side frame 11 is elongated and has a first end 111 and a second end 112, the first end 111 is pivotally connected to the middle upright 30 via the upper pivot O1, and the second end 112 is pivotally connected to the top frame 12. For example, the side frame 11 may be a rod-shaped member, or may be an elongated plate-shaped member as shown in fig. 1 and 2, and the plate-shaped member may have a hollow structure, which not only reduces the weight, but also increases the ventilation effect.

Of course, the side guard frames 11 may also take other shapes such as square or triangular as needed, as long as they can be pivoted between the middle standing bar 30 and the top guard plate 12. The side guard 11 may be pivotally connected to the middle standing bar 30 and the top guard 12 at a position other than the end thereof.

The two side portions 131 of the backrest frame 13 may also be elongated, for example, in the form of a tube as shown in the figures. The lower end 1311 of each side 131 is pivotally connected to the central upright 30 via a lower pivot O2, the lower pivot O2 being located below the upper pivot O1. Similar to the side guard frames 11, the two side portions 131 of the backrest frame 13 may also have other shapes such as square or triangle, if necessary, as long as they can be pivoted between the middle standing bar 30 and the top guard plate 12. Furthermore, the backrest frame 13 may be pivotally connected to the middle standing bar 30 and the top guard plate 12 at a position other than the end of the side portion 131.

In the preferred embodiment shown in the figures, the backrest frame 13 also has an upper portion 132 connecting the two side portions 131 together, and the top protective frame 12 may be pivotally connected to the upper portion 132 of the backrest frame 13. Of course, the backrest frame 13 may not have an upper portion, and in this case, the upper ends of the two side portions 131 are pivotally connected to the top frame 12.

Further, in order that the backrest frame 13 does not interfere with the side guard frame 11 until the backrest frame 13 is pivoted forward to the preset position, an escape bend 1312 is formed at each side portion 131 of the backrest frame 13 at a position corresponding to the upper pivot O1, as best seen in fig. 1 and 2. The escape bend 1312 may be formed by bending or recessing each side portion 131 of the backrest frame 13 at a position corresponding to the upper pivot O1. Specifically, the escape bend 1312 creates an escape space for a portion of each side portion 131 of the backrest frame 13 at a position corresponding to the upper pivot O1, and the first end 111 of the side guard frame 11 gradually enters the escape space (as best seen in fig. 5) until the side guard frame 11 reaches the predetermined position before the backrest frame 13 pivots forward to reach the predetermined position without blocking the side portion 131 of the backrest frame 13 from further pivoting forward.

The top frame 12 is pivotally connected between the side frames 11 and the backrest frame 13. As shown in fig. 1 and 2, the top frame 12 has an upper portion 122 and a lower portion 121, wherein the upper portion 122 is pivotally connected to the second end 112 of the side frame 11, and the lower portion 121 is pivotally connected to the backrest frame 13. Of course, the top frame 12 may be pivotally connected to the side frames 11 and the backrest frame 13 at other positions than the upper portion 122 and the lower portion 121.

In addition, as shown in the figure, the top protection frame 12 is a sheet-shaped member, and the sheet-shaped member may also have a hollow structure, so that the weight is reduced, and the ventilation effect is also increased. Of course, in other embodiments, the top housing 12 may take the form of a rectangular frame structure, for example.

The exemplary embodiments of the present disclosure presented in the present disclosure application should not be construed as limiting the application of the appended claims. The verb "to comprise" is used in this application as an open limitation that does not exclude the presence of unrecited features. The features recited in the dependent claims may be freely combined with each other, unless otherwise specified. The novel features believed characteristic of the disclosure are set forth with particularity in the appended claims.

The foregoing embodiments and advantages are merely exemplary and are not to be construed as limiting the present disclosure. The description herein is intended to be illustrative, and not to limit the scope of the claims. Various alternatives, modifications, and variations will be apparent to those skilled in the art. The features, structures, methods, and other characteristics of the exemplary embodiments described herein may be combined in various ways to produce additional and/or alternative exemplary embodiments.

Claims

1. A backrest limiting component of a baby carriage is used for limiting the adjustment position of the backrest of the baby carriage and is characterized in that the backrest limiting component is arranged on a frame of the baby carriage and comprises two side protective frames positioned at the left side and the right side of the backrest limiting component, a top protective frame positioned at the upper side of the backrest limiting component and a backrest frame positioned at the rear side of the backrest limiting component,

wherein the top protective frame is pivotally connected between the side protective frame and the backrest frame, and the side protective frame and the backrest frame are respectively pivoted to the frame via an upper pivot and a lower pivot, so that the side protective frame, the top protective frame, the backrest frame and the frame constitute a four-bar mechanism,

the backrest frame is provided with two side parts positioned on the left side and the right side, at least one side part is vertically overlapped with the side protection frame on the corresponding side, so that the side part of the backrest frame can be blocked by the part, pivoted with the frame, of the side protection frame when the side part of the backrest frame is pivoted forwards around the lower pivot to a preset position.

2. The backrest restraint assembly of claim 1 wherein each of said side guards is elongated and has a first end pivotally connected to said frame via said upper pivot and a second end pivotally connected to said top guard.

3. The backrest restraint assembly of claim 2 wherein each of said side frames is an elongated plate and said plate is hollow.

4. The backrest restraint assembly of claim 1 wherein both of the side portions of the backrest frame are elongated and the lower end of each side portion is pivotally connected to the frame via the lower pivot.

5. The back stop assembly of claim 4, wherein the back frame further has an upper portion connecting the two side portions together, the top frame being pivotally connected to the upper portion of the back frame.

6. The backrest restraint assembly of claim 1 wherein the top frame is a plate-shaped member having a hollowed-out structure and has an upper portion and a lower portion, the side frames are pivotally connected to the upper portion of the top frame, and the backrest frame is pivotally connected to the lower portion of the top frame.

7. The back stop assembly according to any one of claims 1 to 6, wherein each side portion of the back frame is formed with an escape bend at a location corresponding to the upper pivot so that the back frame is not blocked by the side frame before pivoting forward to the preset position.

8. The back stop assembly of claim 7, wherein the relief bend is formed by bending or recessing each side of the back frame at a location corresponding to the upper pivot.

9. The backstop limiting assembly as recited in claim 1 wherein said frame comprises a rider located at an upper portion of said frame, said backstop limiting assembly being mounted on said rider.

10. The back stop assembly of claim 1, wherein said frame includes a rear frame located at a lower portion of said frame, a center upright being secured to said rear frame such that said back stop assembly can be mounted on said center upright.

11. Child's vehicle, characterized in that it comprises a backrest stop assembly according to any of claims 1-10.