CN104799597B - Mechanical linkage device of sofa - Google Patents
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- CN104799597B CN104799597B CN201510117382.0A CN201510117382A CN104799597B CN 104799597 B CN104799597 B CN 104799597B CN 201510117382 A CN201510117382 A CN 201510117382A CN 104799597 B CN104799597 B CN 104799597B
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Abstract
本发明涉及一种沙发机械联动装置，具有闭合状态、伸展状态以及斜躺状态这三个工作状态，主要结构包括搁脚杆组件、坐垫安装件、底座安装件和机构运动组件，搁脚杆组件由多个搁脚杆和多个脚杆通过相互铰接构成，搁脚杆组件的后端分别与坐垫安装件的前端以及机构运动组件的前端铰接；底座安装件的前端设置有弧形面，机构运动组件的前端设置有第三固定轴，在沙发机械联动装置的运动过程中，第三固定轴始终与弧形面相切；坐垫安装件的后端设置有第二固定轴，当沙发机械联动装置处于斜躺状态时，第二固定轴与机构运动组件相接触；机构运动组件后端还开设有U型槽和第一固定轴，当沙发机械联动装置处于伸展状态时，第一固定轴处于U型槽内。
The invention relates to a sofa mechanical linkage device, which has three working states: closed state, stretched state and reclining state. It is composed of a plurality of footrest rods and a plurality of foot rods through mutual hinge, the rear end of the footrest rod assembly is respectively hinged with the front end of the seat cushion mounting part and the front end of the mechanism movement assembly; the front end of the base mounting part is provided with an arc surface, and the mechanism The front end of the moving component is provided with a third fixed shaft, which is always tangent to the arc surface during the movement of the sofa mechanical linkage device; When in the reclining state, the second fixed shaft is in contact with the moving component of the mechanism; the rear end of the moving component of the mechanism is also provided with a U-shaped groove and the first fixed shaft. When the sofa mechanical linkage is in the extended state, the first fixed shaft is in the U inside the groove.
Description
技术领域technical field
本发明属于家具技术领域，尤其涉及一种沙发机械联动装置。The invention belongs to the technical field of furniture, in particular to a sofa mechanical linkage device.
背景技术Background technique
目前我国沙发市场上的沙发机械联动装置都是手柄或者拉线开关方式打开，这样导致了，人们坐到沙发上的时候，经常要找手柄位置或者拉线开关位置，甚至有的时候，因为无意间触发开关按钮，导致沙发机械联动装置打开，而引起伤害。从而使沙发存在一种不安全因素在里面。At present, the sofa mechanical linkage devices in my country's sofa market are all opened by handles or pull-wire switches. This has led to the fact that when people sit on the sofa, they often have to find the position of the handle or the pull-wire switch. The switch button causes the mechanical linkage of the sofa to open, causing injury. So that there is an unsafe factor in the sofa.
市场上出现了另外一种依靠人体背部推动机械联动装置的沙发，但是由于这种沙发的机械联动装置结构简单，在其闭合的时候，当靠背受到人体不稳定的作用力时，靠背会产生晃动，在人背靠时，不能够安稳休息，而抬起歇脚板后，歇脚板受到下压力时，歇脚处会产生闭合的动作。而这种动作发生后之后，使沙发机械联动装置由闭合，伸展，抬起三种步骤混乱，使机械联动装置不能够正常运行。这样不能够满足人们的使用需求。There is another sofa on the market that relies on the back of the human body to push the mechanical linkage. However, due to the simple structure of the mechanical linkage of this sofa, when it is closed, the backrest will shake when it is subjected to an unstable force from the human body. , when people lean on their backs, they cannot rest steadily, and after lifting the footrest, when the footrest is under pressure, the footrest will produce a closed action. And after this action takes place, the three steps of closing, stretching and lifting the mechanical linkage of the sofa are confused, so that the mechanical linkage cannot operate normally. Can not satisfy people's use demand like this.
发明内容Contents of the invention
为了解决上述的技术问题，本发明的目的是提供一种沙发机械联动装置，这种装置在闭合状态下，第三固定轴与底座安装件的弧形面相切，因而在给予沙发压力作用下，不会因为各连接杆的间隙问题使沙发靠背松动，使人们能够稳定的躺靠沙发靠背；在沙发机械联动装置处于伸展状态下，第一固定轴运动至机构运动组件后端的U型槽中，因而在给予沙发搁脚组件向下的压力时，搁脚杆组件不会收拢，使得沙发机械联动装置的搁脚杆组件卡死在某一位置，搁脚杆组件不能够正常运行，只有当从斜躺状态复原到伸展状态时，沙发机械联动装置才能够闭合。这样有效的减少伸展装置的因为次序混乱而让产品变形损坏，也方便了人们的日常使用功能。In order to solve the above-mentioned technical problems, the object of the present invention is to provide a mechanical linkage device for sofas. In the closed state of this device, the third fixed shaft is tangent to the arc surface of the base mounting part, so that under the action of pressure on the sofa, The backrest of the sofa will not be loosened due to the gap between the connecting rods, so that people can lie on the backrest of the sofa stably; when the mechanical linkage device of the sofa is in an extended state, the first fixed shaft moves to the U-shaped groove at the rear end of the moving component of the mechanism, Therefore, when downward pressure is given to the sofa footrest assembly, the footrest assembly will not be retracted, so that the footrest assembly of the sofa mechanical linkage is stuck at a certain position, and the footrest assembly cannot operate normally. When the reclined state returns to the stretched state, the sofa mechanical linkage device can be closed. This effectively reduces the deformation and damage of the stretching device due to the disordered order, and also facilitates people's daily use functions.
为了实现上述的目的，本发明采用了以下的技术方案：In order to achieve the above object, the present invention adopts the following technical solutions:
一种沙发机械联动装置，具有闭合状态、伸展状态以及斜躺状态这三个工作状态，主要结构包括搁脚杆组件、坐垫安装件、底座安装件和机构运动组件，所述搁脚杆组件由多个搁脚杆和多个脚杆通过相互铰接构成，搁脚杆组件的后端分别与坐垫安装件的前端以及机构运动组件的前端铰接；所述底座安装件的前端设置有弧形面，所述机构运动组件的前端设置有第三固定轴，在沙发机械联动装置的运动过程中，第三固定轴始终与弧形面相切；所述坐垫安装件的后端设置有第二固定轴，当沙发机械联动装置由闭合状态运动到斜躺状态时，第二固定轴与机构运动组件相接触；所述机构运动组件后端还开设有U型槽和第一固定轴，当沙发机械联动装置处于伸展状态时，第一固定轴运动至U型槽内。本发明所述的沙发机械联动装置在闭合状态下，第三固定轴与底座安装件的弧形面相切，因而在给予沙发压力作用下，不会因为各连接杆的间隙问题使沙发靠背松动，使人们能够稳定的躺靠沙发靠背；在沙发机械联动装置处于伸展状态下，第一固定轴运动至机构运动组件后端的U型槽中，因而在给予沙发搁脚组件向下的压力时，搁脚杆组件不会收拢，使得沙发机械联动装置的搁脚杆组件卡死在某一位置，搁脚杆组件不能够正常运行，只有当从斜躺状态复原到伸展状态时，沙发机械联动装置才能够闭合。这样有效的减少伸展装置的因为次序混乱而让产品变形损坏，也方便了人们的日常使用功能。A sofa mechanical linkage device, which has three working states: closed state, extended state and reclining state. The main structure includes a footrest assembly, a seat cushion installation, a base installation and a mechanism movement assembly. A plurality of footrests and a plurality of footrests are formed by being hinged to each other, and the rear ends of the footrest assemblies are respectively hinged with the front ends of the seat cushion mounting parts and the front ends of the mechanism movement components; the front ends of the base mounting parts are provided with arc-shaped surfaces, The front end of the moving assembly of the mechanism is provided with a third fixed shaft, and during the movement of the sofa mechanical linkage, the third fixed shaft is always tangent to the arc surface; the rear end of the cushion mounting part is provided with a second fixed shaft, When the sofa mechanical linkage moves from the closed state to the reclining state, the second fixed shaft is in contact with the mechanism movement component; the rear end of the mechanism movement component is also provided with a U-shaped groove and the first fixed shaft, when the sofa mechanical linkage When in the extended state, the first fixed shaft moves into the U-shaped groove. In the closed state of the sofa mechanical linkage device according to the present invention, the third fixed shaft is tangent to the arc surface of the base mounting part, so under the pressure applied to the sofa, the backrest of the sofa will not be loosened due to the gap between the connecting rods. It enables people to lie on the backrest of the sofa stably; when the sofa mechanical linkage is in an extended state, the first fixed shaft moves to the U-shaped groove at the rear end of the moving component of the mechanism, so when the sofa footrest component is given downward pressure, the rest The foot rod assembly will not be folded, so that the foot rest rod assembly of the sofa mechanical linkage device is stuck in a certain position, and the foot rest rod assembly cannot operate normally. Only when the sofa mechanical linkage device recovers from the reclined state to the extended state able to close. This effectively reduces the deformation and damage of the stretching device due to the disordered order, and also facilitates people's daily use functions.
作为优选方式，所述机构运动组件包括靠背安装件、第一支撑杆、第一次序杆、第二次序杆、第一连杆、第二连杆以及第二支撑杆；所述第一支撑杆的下端与底座安装件后端铰接，第一支撑杆的上端与靠背安装件的后端铰接，靠背安装件的前端与坐垫安装件的后端铰接；所述第一次序杆的上端与坐垫安装件的后端铰接，第一次序杆的下端与第一连杆的后端铰接，第一连杆的前端与底座安装件铰接；所述第二次序杆设置在第二连杆的后端；所述第二连杆后端与坐垫安装件后端铰接，第二连杆前端与第二支撑杆的中部铰接，第二支撑杆的上端与坐垫安装件铰接，第二支撑杆的下端与搁脚杆组件的后端铰接。通过机构运动组件内部结构之间以及与搁脚杆组件、坐垫安装件、底座安装件的相互铰接，相互配合，使得其构成一个有序的整体，在使用过程中有序配合，从而达到预定的效果。As a preferred mode, the mechanism movement assembly includes a backrest mounting part, a first support rod, a first sequence rod, a second sequence rod, a first connecting rod, a second connecting rod and a second supporting rod; the first support The lower end of the rod is hinged to the rear end of the base mounting part, the upper end of the first support rod is hinged to the rear end of the backrest mounting part, and the front end of the backrest mounting part is hinged to the rear end of the seat cushion mounting part; The rear end of the seat cushion mounting part is hinged, the lower end of the first sequence rod is hinged with the rear end of the first connecting rod, and the front end of the first connecting rod is hinged with the base mounting part; the second sequence rod is arranged on the second connecting rod Rear end; the rear end of the second connecting rod is hinged with the rear end of the cushion mounting part, the front end of the second connecting rod is hinged with the middle part of the second support rod, the upper end of the second support rod is hinged with the cushion mounting part, and the second support rod The lower end is hinged with the rear end of the footrest assembly. Through the inter-hinging and mutual cooperation between the internal structure of the mechanism movement components and the footrest component, the seat cushion installation part and the base installation part, it forms an orderly whole and cooperates in an orderly manner during use, so as to achieve the predetermined Effect.
作为优选方式，所述第二次序杆的下端呈弧形，所述第一固定轴设置在第一次序杆的下端，在沙发机械联动装置运动过程中，第一固定轴始终与第二次序杆下端的弧面相切。通过第一固定轴与第二次序杆下端的弧面相切，从而使得沙发机械联动装置在状态调整过程中，保持更稳定的状态，不易发生晃动。As a preferred mode, the lower end of the second sequence rod is arc-shaped, and the first fixed shaft is arranged at the lower end of the first sequence rod. During the movement of the sofa mechanical linkage, the first fixed shaft is always in line with the second sequence rod. The arc at the lower end of the rod is tangent. The first fixed axis is tangent to the arc surface at the lower end of the second sequence rod, so that the sofa mechanical linkage device maintains a more stable state during the state adjustment process and is less likely to shake.
作为优选方式，所述底座安装件中段处开设有孔槽，第一连杆的中段位置处设置有挡头，所述挡头穿过孔槽。当沙发机械联动装置运动到斜靠状态时，挡头刚好运动到孔槽上端，从而使得靠背不能继续往后运动，保持在一定角度。As a preferred manner, a hole is opened in the middle section of the base mounting part, and a stopper is provided in the middle section of the first connecting rod, and the stopper passes through the hole slot. When the mechanical linkage of the sofa moves to the reclining state, the stopper just moves to the upper end of the hole, so that the backrest cannot continue to move backward and remains at a certain angle.
作为优选方式，所述第一连杆上设置有第五固定轴，第二支撑杆上设置有第六固定轴，所述第五固定轴和第六固定轴之间连接有第一辅助弹簧。通过第一辅助弹簧的松紧度，辅助靠背斜躺位置恢复伸展状态时候的作用力，使靠背与人体靠背贴合。而达到一种沙发的舒服度。As a preferred manner, the first connecting rod is provided with a fifth fixed shaft, the second support rod is provided with a sixth fixed shaft, and a first auxiliary spring is connected between the fifth fixed shaft and the sixth fixed shaft. Through the tightness of the first auxiliary spring, the active force when the reclined position of the backrest is restored to the extended state is assisted, so that the backrest fits the backrest of the human body. To achieve the comfort of a sofa.
作为优选方式，所述底座安装件上还设置有第四固定轴，第二连杆的前端设置有固定件，所示第四固定轴和固定件之间连接有第二辅助弹簧。通过第二辅助弹簧的松紧度，辅助靠背斜躺位置恢复伸展状态时候的作用力，使靠背与人体靠背贴合。而达到一种沙发的舒服度。As a preferred manner, the base mounting part is further provided with a fourth fixed shaft, the front end of the second connecting rod is provided with a fixed part, and a second auxiliary spring is connected between the fourth fixed shaft and the fixed part. Through the tightness of the second auxiliary spring, the active force when the reclining position of the auxiliary backrest is restored to the stretched state is assisted, so that the backrest fits the backrest of the human body. To achieve the comfort of a sofa.
作为优选方式，所述第一固定轴上设置有轴套。在第一固定轴上设置轴套，变滑动摩擦为滚动摩擦，大大减小了第一固定轴与U型槽之间的摩擦力，减小了它们之间磨损的可能性。As a preferred manner, a shaft sleeve is arranged on the first fixed shaft. A shaft sleeve is arranged on the first fixed shaft to change sliding friction into rolling friction, which greatly reduces the friction force between the first fixed shaft and the U-shaped groove, and reduces the possibility of wear between them.
作为优选方式，所述第三固定轴上设置有轴套。在第三固定轴上设置轴套，变滑动摩擦为滚动摩擦，大大减小了第三固定轴与底座安装件前端弧形面之间的摩擦力，减小了它们之间磨损的可能性。As a preferred manner, a shaft sleeve is arranged on the third fixed shaft. A shaft sleeve is arranged on the third fixed shaft to change the sliding friction into rolling friction, which greatly reduces the friction force between the third fixed shaft and the arc surface at the front end of the base mounting part, and reduces the possibility of wear between them.
与现有技术相比，本发明的有益效果是：本发明所述的沙发机械联动装置在闭合状态下，第三固定轴与底座安装件的弧形面相切，因而在给予沙发压力作用下，不会因为各连接杆的间隙问题使沙发靠背松动，使人们能够稳定的躺靠沙发靠背；在沙发机械联动装置处于伸展状态下，第一固定轴运动至机构运动组件后端的U型槽中，因而在给予沙发搁脚组件向下的压力时，搁脚杆组件不会收拢，使得沙发机械联动装置的搁脚杆组件卡死在某一位置，搁脚杆组件不能够正常运行，只有当从斜躺状态复原到伸展状态时，沙发机械联动装置才能够闭合。这样有效的减少伸展装置的因为次序混乱而让产品变形损坏，也方便了人们的日常使用功能。Compared with the prior art, the beneficial effect of the present invention is that: in the closed state of the sofa mechanical linkage device according to the present invention, the third fixed axis is tangent to the arc surface of the base mounting part, so under the action of pressure on the sofa, The backrest of the sofa will not be loosened due to the gap between the connecting rods, so that people can lie on the backrest of the sofa stably; when the mechanical linkage device of the sofa is in an extended state, the first fixed shaft moves to the U-shaped groove at the rear end of the moving component of the mechanism, Therefore, when downward pressure is given to the sofa footrest assembly, the footrest assembly will not be retracted, so that the footrest assembly of the sofa mechanical linkage is stuck at a certain position, and the footrest assembly cannot operate normally. When the reclined state returns to the stretched state, the sofa mechanical linkage device can be closed. This effectively reduces the deformation and damage of the stretching device due to the disordered order, and also facilitates people's daily use functions.
附图说明Description of drawings
图1是闭合状态下沙发机械联动装置的的结构示意图。Fig. 1 is a structural schematic diagram of the sofa mechanical linkage device in a closed state.
图2是机构运动组件的结构示意图。Fig. 2 is a schematic diagram of the structure of the moving components of the mechanism.
图3是伸展状态下沙发机械联动装置的的结构示意图。Fig. 3 is a structural schematic diagram of the mechanical linkage device of the sofa in an extended state.
图4是斜躺状态下沙发机械联动装置的的结构示意图。Fig. 4 is a schematic structural diagram of the mechanical linkage device of the sofa in a reclining state.
具体实施方式detailed description
下面结合附图对本发明的具体实施方式做一个详细的说明。The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.
如图1～图4所述的一种沙发机械联动装置，这种沙发机械联动装置具有闭合状态、伸展状态以及斜躺状态这三个工作状态，主要结构包括搁脚杆组件100、坐垫安装件200、底座安装件300和机构运动组件400，所述搁脚杆组件100由多个搁脚杆和多个脚杆通过相互铰接构成，搁脚杆组件100的后端分别与坐垫安装件200的前端以及机构运动组件400的前端铰接；所述机构运动组件400包括靠背安装件401、第一支撑杆402、第一次序杆403、第二次序杆404、第一连杆405、第二连杆406以及第二支撑杆408；所述第一支撑杆402的下端与底座安装件300后端铰接，第一支撑杆402的上端与靠背安装件401的后端铰接，靠背安装件401的前端与坐垫安装件200的后端铰接；所述第一次序杆403的上端与坐垫安装件200的后端铰接，第一次序杆403的下端与第一连杆405的后端铰接，第一连杆405的前端与底座安装件300铰接；所述第二次序杆404设置在第二连杆406的后端；所述第二连杆406后端与坐垫安装件200后端铰接，第二连杆406前端与第二支撑杆408的中部铰接，第二支撑杆408的上端与坐垫安装件200铰接，第二支撑杆408的下端与搁脚杆组件100的后端铰接。所述底座安装件300的前端设置有弧形面8，弧形面8从底座安装件300前端的下表面直至底座安装件300前端的上表面设置。第二支撑杆408上设置有第三固定轴3，在沙发机械联动装置的运动过程中，第三固定轴3始终与弧形面8相切。所述坐垫安装件200的后端设置有第二固定轴2，当沙发机械联动装置由闭合状态运动到斜躺状态时，第二固定轴2与第一次序杆403相接触；所述第二连杆406后端开设有U型槽7，第一次序杆403下端设置有第一固定轴1，当沙发机械联动装置处于伸展状态时，第一固定轴1运动至U型槽7内。A sofa mechanical linkage device as shown in Figures 1 to 4, this sofa mechanical linkage device has three working states: closed state, stretched state and reclining state, the main structure includes a footrest rod assembly 100, a seat cushion mounting part 200, the base mounting part 300 and the mechanism movement assembly 400. The footrest rod assembly 100 is composed of a plurality of footrest rods and a plurality of foot rods through mutual hinges. The front end and the front end of the mechanism motion assembly 400 are hinged; the mechanism motion assembly 400 includes a backrest mounting part 401, a first support rod 402, a first sequence rod 403, a second sequence rod 404, a first connecting rod 405, a second connecting rod Rod 406 and second support rod 408; the lower end of the first support rod 402 is hinged with the rear end of the base mounting part 300, the upper end of the first support rod 402 is hinged with the rear end of the backrest mounting part 401, and the front end of the backrest mounting part 401 is hinged. It is hinged with the rear end of the cushion mounting part 200; the upper end of the first sequence rod 403 is hinged with the rear end of the cushion mounting part 200, and the lower end of the first sequence rod 403 is hinged with the rear end of the first connecting rod 405. The front end of a connecting rod 405 is hinged with the base mounting part 300; the second sequence rod 404 is arranged at the rear end of the second connecting rod 406; the rear end of the second connecting rod 406 is hinged with the rear end of the cushion mounting part 200; The front end of the second connecting rod 406 is hinged with the middle part of the second support rod 408 , the upper end of the second support rod 408 is hinged with the seat cushion mounting part 200 , and the lower end of the second support rod 408 is hinged with the rear end of the footrest rod assembly 100 . The front end of the base mounting part 300 is provided with an arc-shaped surface 8 , and the arc-shaped surface 8 is arranged from the lower surface of the front end of the base mounting part 300 to the upper surface of the front end of the base mounting part 300 . The second support rod 408 is provided with a third fixed shaft 3 , and the third fixed shaft 3 is always tangent to the arc-shaped surface 8 during the movement of the sofa mechanical linkage. The rear end of the cushion mounting part 200 is provided with a second fixed shaft 2, and when the sofa mechanical linkage moves from the closed state to the reclined state, the second fixed shaft 2 contacts the first sequence bar 403; The rear end of the second connecting rod 406 is provided with a U-shaped groove 7, and the lower end of the first sequence rod 403 is provided with a first fixed shaft 1. When the sofa mechanical linkage is in an extended state, the first fixed shaft 1 moves into the U-shaped groove 7 .
在实施过程中，先在沙发的两侧面下端固定一根安装杆，沙发机械联动装置通过镜像方式设置在连接沙发两侧面下部的安装杆的两端。通过螺钉把底座安装件300底部固定在安装杆上，座垫安装件200通过机构运动组件400的支撑杆和连杆而互连至底座安装件300，座垫安装件200为连接座垫安装位置并且与对面座垫安装件对座垫形成一个支撑面，用于固定沙发坐垫。所述机构运动组件400在闭合、伸展和斜躺位置之间调节在座垫安装件300上方的座垫，同时调节座垫与靠背的倾斜度。In the implementation process, a mounting rod is first fixed at the lower ends of the two sides of the sofa, and the sofa mechanical linkage device is arranged at both ends of the mounting rod connecting the lower parts of the two sides of the sofa through a mirror image. The bottom of the base mounting part 300 is fixed on the mounting rod by screws, the seat cushion mounting part 200 is interconnected to the base mounting part 300 through the support rod and the connecting rod of the mechanism movement assembly 400, and the seat cushion mounting part 200 is used to connect the seat cushion mounting position And form a support surface to the seat cushion with the opposite seat cushion installation part, be used for fixing sofa cushion. The mechanism motion assembly 400 adjusts the seat cushion above the seat cushion mount 300 between the closed, extended and reclined positions, while simultaneously adjusting the inclination of the seat cushion and backrest.
本发明所述的沙发机械联动装置在闭合状态下，第三固定轴3与底座安装件300的弧形面8相切，因而在给予沙发压力作用下，不会因为各连接杆的间隙问题使沙发靠背松动，使人们能够稳定的躺靠沙发靠背；在沙发机械联动装置处于伸展状态下，第一固定轴1运动至机构运动组件400后端的U型槽中，因而在给予沙发搁脚组件向下的压力时，搁脚杆组件100不会收拢，使得沙发机械联动装置的搁脚杆组件100卡死在某一位置，搁脚杆组件100不能够正常运行，只有当从斜躺状态复原到伸展状态时，沙发机械联动装置才能够闭合。这样有效的减少伸展装置的因为次序混乱而让产品变形损坏，也方便了人们的日常使用功能。In the closed state of the sofa mechanical linkage device according to the present invention, the third fixed shaft 3 is tangent to the arc-shaped surface 8 of the base mounting part 300, so under the pressure applied to the sofa, it will not be caused by the gap between the connecting rods. The backrest of the sofa is loose, so that people can lie on the backrest of the sofa stably; when the sofa mechanical linkage is in the stretched state, the first fixed shaft 1 moves to the U-shaped groove at the rear end of the mechanism movement assembly 400, thus giving the sofa footrest assembly When the pressure is lowered, the footrest assembly 100 will not be folded, so that the footrest assembly 100 of the sofa mechanical linkage device is stuck in a certain position, and the footrest assembly 100 cannot operate normally. When the sofa is in the extended state, the mechanical linkage of the sofa can be closed. This effectively reduces the deformation and damage of the stretching device due to the disordered order, and also facilitates people's daily use functions.
所述第二次序杆404的下端呈弧形，所述第一固定轴1设置在第一次序杆403的下端，在沙发机械联动装置运动过程中，第一固定轴1始终与第二次序杆404下端的弧面相切。通过第一固定轴1与第二次序杆404下端的弧面相切，从而使得沙发机械联动装置在状态调整过程中，保持更稳定的状态，不易发生晃动。The lower end of the second sequence rod 404 is arc-shaped, and the first fixed shaft 1 is arranged on the lower end of the first sequence rod 403. During the movement of the sofa mechanical linkage, the first fixed shaft 1 is always in line with the second sequence rod 403. The arc surface at the lower end of the rod 404 is tangent. The first fixed axis 1 is tangent to the arc surface of the lower end of the second sequence rod 404, so that the sofa mechanical linkage device maintains a more stable state during the state adjustment process, and is less likely to shake.
所述底座安装件300中段处开设有孔槽9，第一连杆405的中段位置处设置有挡头10，所述挡头10穿过孔槽9。当沙发机械联动装置运动到斜靠状态时，挡头10刚好运动到孔槽9上端，从而使得靠背不能继续往后运动，保持在一定角度。A hole 9 is opened at the middle section of the base mounting part 300 , and a stopper 10 is provided at the middle section of the first connecting rod 405 , and the stopper 10 passes through the hole 9 . When the mechanical linkage of the sofa moves to the reclining state, the stopper 10 just moves to the upper end of the hole 9, so that the backrest cannot continue to move backward and remains at a certain angle.
所述第一连杆405上设置有第五固定轴5，第二支撑杆408上设置有第六固定轴6，所述第五固定轴5和第六固定轴6之间连接有第一辅助弹簧11。所述底座安装件300上还设置有第四固定轴4，第二连杆406的前端设置有固定件407，所示第四固定轴4和固定件407之间连接有第二辅助弹簧12。The first connecting rod 405 is provided with a fifth fixed shaft 5, the second support rod 408 is provided with a sixth fixed shaft 6, and a first auxiliary shaft is connected between the fifth fixed shaft 5 and the sixth fixed shaft 6. spring 11. The base mounting part 300 is further provided with a fourth fixed shaft 4 , and the front end of the second connecting rod 406 is provided with a fixed part 407 , and the second auxiliary spring 12 is connected between the fourth fixed shaft 4 and the fixed part 407 .
所述第一固定轴1和第三固定轴3上分别设置有轴套(未标识)。在第一固定轴1上设置轴套(未标识)，变滑动摩擦为滚动摩擦，大大减小了各个结构之间的摩擦力，减小了它们之间磨损的可能性。The first fixed shaft 1 and the third fixed shaft 3 are respectively provided with sleeves (not marked). A shaft sleeve (not marked) is arranged on the first fixed shaft 1 to change the sliding friction into rolling friction, which greatly reduces the friction force between the various structures and reduces the possibility of wear between them.
本说明书中所描述的以上内容仅仅是对本发明所作的举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，只要不偏离本发明说明书的内容或者超越本权利要求书所定义的范围，均应属于本发明的保护范围。The above content described in this specification is only an illustration of the present invention. Those skilled in the technical field to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the content of the description of the present invention or exceed the scope defined in the claims , should belong to the protection scope of the present invention.
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| CN105286336B (en) * | 2015-08-31 | 2018-04-24 | 林长贞 | Leisure chair with foot pad |
| US11266245B2 (en) | 2016-07-29 | 2022-03-08 | Leggett & Platt, Inc. | Rocker/glider recliner linkage with projected back pivot point |
| US10420422B2 (en) * | 2016-07-29 | 2019-09-24 | L&P Property Management Company | Recliner chair having improved wall clearance and recline linkage with projected back pivot point |
| CN113015464B (en) * | 2018-06-09 | 2024-06-14 | 埃利奥·拉瓦约利 | Improved movement mechanism for moving movable parts of a reclining sofa or reclining chair |
| US11284721B2 (en) | 2019-03-29 | 2022-03-29 | L&P Property Management Company | Disengagement and reengagement mechanism on motorized seating unit for selective manual control |
| US11517109B2 (en) | 2019-03-29 | 2022-12-06 | L&P Property Management Company | Disengagement and reengagement mechanism on motorized seating unit for selective manual control |
| CN112205804A (en) * | 2020-09-27 | 2021-01-12 | 恒林家居股份有限公司 | Sofa and packing and transporting method thereof |
| EP4368066A4 (en) * | 2021-08-18 | 2025-03-12 | Remacro Machinery & Technology (Wujiang) Co., Ltd. | Device for retracting an ischium into an angle, seat support and seat unit |
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