Shoulder supporting driving mechanism and automobile seat

Abstract

The utility model relates to the technical field of automobile seats, and discloses a driving mechanism of a shoulder support and an automobile seat, the driving mechanism is used for adjusting the angle of the shoulder support relative to a backrest, and the driving mechanism comprises a motor, a synchronous rod and a synchronous belt; a driving belt wheel is arranged on an output shaft of the motor, the synchronous rod is used for driving the angle adjuster, a driven belt wheel is arranged on the synchronous rod, and the center of the output shaft deviates from the center of the synchronous rod; the synchronous belt is arranged between the driving belt wheel and the driven belt wheel, and when the motor drives the driving belt wheel to rotate, the driving belt wheel drives the driven belt wheel to rotate through the synchronous belt, so that the synchronous rod drives the angle adjuster to adjust the angle of the shoulder support relative to the backrest. The utility model has the advantages that the motor can be arranged far away from the synchronous rod, so that the motor is prevented from abutting against the back of a driver and passengers; a mounting space near the position of the synchronous rod can be vacated for mounting a comfortable part, so that the comfort of the automobile seat can be improved; in addition, the structure of the seat can be more compact, and miniaturization is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a shoulder-supported driving mechanism and an automobile seat. Background Art

[0002] The comfort of car seats directly affects the comfort of the driver and passengers. People's requirements for the comfort of car seats are getting higher and higher. Some car seats are equipped with adjustable shoulder supports on their backrests, and the driver and passengers can adjust the angle of the shoulder support relative to the backrest according to actual needs.

[0003] In the shoulder support adjustment mechanism of existing automobile seats, the shoulder support is generally driven by a motor to drive a synchronous rod, and the synchronous rod drives the angle adjuster to achieve the angle adjustment of the shoulder support. Since the motor is installed near the synchronous rod, the motor is easy to hit the back of the driver and passenger, affecting the comfort of the seat. In addition, the motor occupies the installation space near the synchronous rod, affecting the layout of other comfort parts, and when the motor is large, the backrest size has to be increased to provide installation space for the motor. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a driving mechanism and a car seat for shoulder support which are driven by a synchronous belt and have high comfort and are conducive to miniaturization.

[0005] The utility model solves the technical problem by adopting a technical solution of providing a driving mechanism of a shoulder support, which is used to adjust the angle of the shoulder support relative to the backrest, and a recliner is provided between the backrest and the shoulder support, and the driving mechanism comprises:

[0006] Motor, synchronous rod and synchronous belt; wherein,

[0007] The output shaft of the motor is provided with a driving pulley, the synchronization rod is used to drive the angle adjuster, and the synchronization rod is provided with a driven pulley, and the center of the output shaft deviates from the center of the synchronization rod;

[0008] The synchronous belt is arranged between the driving pulley and the driven pulley. When the motor drives the driving pulley to rotate, the driving pulley drives the driven pulley to rotate through the synchronous belt, so that the synchronous rod drives the angle adjuster to adjust the angle of the shoulder support relative to the backrest.

[0009] Further, the outer circumferences of the driving pulley and the driven pulley are provided with first convex teeth, the synchronous belt is wound between the driving pulley and the driven pulley, and the inner circumference of the synchronous belt is provided with second convex teeth;

[0010] The first convex teeth on both the driving pulley and the driven pulley mesh with the second convex teeth for transmission.

[0011] Furthermore, the synchronous belt includes a belt body and the convex teeth, and a reinforcement layer is provided on the belt body to enhance the strength of the synchronous belt.

[0012] Furthermore, the surface of the second protruding teeth is provided with nylon cloth;

[0013] When the first convex tooth is meshed with the second convex tooth, the first convex tooth is attached to the nylon cloth.

[0014] Furthermore, the motor is mounted on the backrest.

[0015] Furthermore, the length and width of the backrest are both greater than the thickness of the backrest, and the motor is arranged along the length direction of the backrest.

[0016] Further, the motor is mounted on the shoulder support.

[0017] Furthermore, the center distance between the output shaft and the synchronization rod is greater than or equal to 168 mm.

[0018] The utility model solves the technical problem by adopting a technical solution, and also proposes a car seat, comprising:

[0019] A seat and a backrest disposed on the seat, wherein the backrest is provided with a shoulder support;

[0020] a recliner disposed between the shoulder support and the backrest;

[0021] In the above-mentioned driving mechanism, the synchronization rod is connected to the angle adjuster.

[0022] Compared with the prior art, the utility model has at least the following beneficial effects:

[0023] In the utility model, a driven pulley is arranged on the synchronous rod, a driving pulley is arranged on the output shaft of the motor, and a synchronous belt is arranged between the driving pulley and the driven pulley to realize transmission. When the motor drives the driving pulley to rotate, the driving pulley can drive the driven pulley through the synchronous belt to rotate the synchronous rod and drive the angle adjuster to adjust the angle of the shoulder support relative to the backrest. The motor can be arranged away from the synchronous rod, and does not need to be close to the synchronous rod, so as to avoid the motor against the back of the driver and the passenger; and the installation space near the synchronous rod position can be vacated for installing comfort parts, which can improve the comfort of the car seat; and the seat structure can be made more compact, which is conducive to miniaturization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the installation of the drive mechanism of the utility model on a car seat;

[0025] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0026] Figure 3 It is a structural schematic diagram of the driving mechanism of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the synchronous belt.

[0028] In the figure:

[0029] 1. Motor; 10. Driving pulley; 120. First convex tooth;

[0030] 2. Synchronous rod; 20. Driven pulley;

[0031] 3. Synchronous belt; 30. Second convex tooth; 301. Nylon cloth; 31. Reinforcement layer;

[0032] 4. Seat;

[0033] 5. Backrest; 50. Shoulder support. DETAILED DESCRIPTION

[0034] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] like Figure 1 and Figure 4 As shown, a shoulder support driving mechanism is used in a car seat to adjust the angle of the shoulder support 50 relative to the backrest 5. The driving mechanism mainly includes: a motor 1 and a driving pulley 10 on the output shaft of the motor 1, a synchronization rod 2 and a driven pulley 20 on the synchronization rod 2, and a synchronization belt 3.

[0040] The car seat mainly includes: a seat 4 and a backrest 5 arranged on the seat 4, and a shoulder support 50 is arranged on the backrest 5; a recliner is arranged between the shoulder support 50 and the backrest 5, and a synchronization rod 2 is connected to the recliner and can drive the recliner.

[0041] Specifically, in this embodiment, a driving pulley 10 is provided on the output shaft of the motor 1. The driving pulley 10 and the output shaft can be separately arranged or integrated. When the output shaft rotates, the driving pulley 10 rotates synchronously. The synchronous rod 2 is used to drive the recliner, and the synchronous rod 2 is provided with a driven pulley 20. Similarly, the synchronous rod 2 and the driven pulley 20 can also be integrated or separately arranged. The center of the output shaft deviates from the center of the synchronous rod 2, that is, the output shaft of the motor 1 does not need to be coaxially arranged with the synchronous rod 2. The motor 1 and the output shaft can be arranged away from the synchronous rod 2 to free up space for installing other comfort parts, and the motor 1 can be prevented from abutting against the back of the driver and the passenger, so as to improve the comfort of the car seat. The synchronous belt 3 is arranged between the driving pulley 10 and the driven pulley 20. When the motor 1 drives the driving pulley 10 to rotate, the driving pulley 10 drives the driven pulley 20 to rotate through the synchronous belt 3, so that the synchronous rod 2 drives the recliner to adjust the angle of the shoulder support 50 relative to the backrest 5.

[0042] Preferably, a first convex tooth 120 is provided on the outer periphery of the driving pulley 10 and the driven pulley 20, which can be understood as that the driving pulley 10 and the driven pulley 20 are gears. The synchronous belt 3 is wound between the driving pulley 10 and the driven pulley 20, and a second convex tooth 30 is provided on the inner periphery of the synchronous belt 3. The first convex tooth 120 on both the driving pulley 10 and the driven pulley 20 meshes with the second convex tooth 30 for transmission. When the driving pulley 10 rotates, the driving pulley 10 meshes with the synchronous belt 3 for transmission, and the synchronous belt 3 meshes with the driven pulley 20, and the power of the motor 1 is transmitted to the synchronization rod 2 through the driving pulley 10, the synchronous belt 3 and the driven pulley 20. This meshing transmission method can achieve motion synchronization, with high speed and high precision, and no slipping.

[0043] Further preferably, the surface of the second convex tooth 30 is provided with a nylon cloth 301, and when the first convex tooth 120 is meshed with the second convex tooth 30, the first convex tooth 120 is attached to the nylon cloth 301. The nylon cloth 301 has good wear resistance, which can effectively improve the wear resistance of the second convex tooth 30 and improve the service life of the synchronous belt 3. In addition, the synchronous belt 3 includes a belt body and convex teeth, and a reinforcement layer 31 is provided on the belt body, and the reinforcement layer 31 can strengthen the strength of the synchronous belt 3, that is, the strength of the reinforcement layer 31 is higher than the strength of the belt body itself.

[0044] In this embodiment, the motor 1 of this embodiment can be installed on the backrest 5 or on the shoulder support 50. Optimally, the motor 1 is installed on the backrest 5, and the length and width of the backrest 5 are greater than the thickness of the backrest 5, and the motor 1 is arranged along the length direction of the backrest 5, so that the space in the length direction of the backrest 5 can be effectively utilized, and the motor 1 will not abut against the back of the driver and passenger.

[0045] In this embodiment, power transmission is achieved through the synchronous belt 3, and the center distance between the two pulleys, that is, the center distance between the output shaft of the motor 1 and the synchronization rod 2, can be selected according to actual installation needs. Optimally, the center distance between the output shaft and the synchronization rod 2 is greater than or equal to 168 mm, the motor 1 is away from the synchronization rod 2, and the space at the synchronization rod 2 is vacated, which can prevent the motor 1 from directly abutting against the back of the driver and the passenger, and the vacated space can be used to install other comfort components to improve the comfort of the car seat.

[0046] During use, in this embodiment, a driven pulley 20 is arranged on the synchronization rod 2, a driving pulley 10 is arranged on the output shaft of the motor 1, and a synchronous belt 3 is arranged between the driving pulley 10 and the driven pulley 20 to realize transmission. When the motor 1 drives the driving pulley 10 to rotate, the driving pulley 10 can drive the driven pulley 20 through the synchronous belt 3 to rotate the synchronization rod 2 and drive the angle adjuster to adjust the angle of the shoulder support 50 relative to the backrest 5. The motor 1 can be arranged away from the synchronization rod 2, without being close to the synchronization rod 2, so as to avoid the motor 1 against the back of the driver and passenger; and the installation space near the synchronization rod 2 can be vacated for installing comfort parts, which can improve the comfort of the car seat; and the seat structure can be made more compact, which is conducive to miniaturization. In addition, the overall structure of the driving mechanism of the shoulder support is simple. When the motor 1 is large in size, it can be avoided to be directly arranged at the synchronization rod 2, and the installation space at the bottom of the backrest 5 can be fully utilized to install the motor.

Claims

1. A driving mechanism for a shoulder support, used for adjusting the angle of the shoulder support relative to a backrest, wherein a recliner is provided between the backrest and the shoulder support, characterized in that: The driving mechanism comprises: Motor, synchronous rod and synchronous belt; wherein, The output shaft of the motor is provided with a driving pulley, the synchronization rod is used to drive the angle adjuster, and the synchronization rod is provided with a driven pulley, and the center of the output shaft deviates from the center of the synchronization rod; The synchronous belt is arranged between the driving pulley and the driven pulley. When the motor drives the driving pulley to rotate, the driving pulley drives the driven pulley to rotate through the synchronous belt, so that the synchronous rod drives the angle adjuster to adjust the angle of the shoulder support relative to the backrest.

2. The driving mechanism of the shoulder support according to claim 1, characterized in that: The outer circumferences of the driving pulley and the driven pulley are provided with first convex teeth, the synchronous belt is wound between the driving pulley and the driven pulley, and the inner circumference of the synchronous belt is provided with second convex teeth; The first convex teeth on both the driving pulley and the driven pulley mesh with the second convex teeth for transmission.

3. The driving mechanism of the shoulder support according to claim 2, characterized in that: The synchronous belt comprises a belt body and the convex teeth. A reinforcement layer is provided on the belt body to enhance the strength of the synchronous belt.

4. The driving mechanism of the shoulder support according to claim 2, characterized in that: The surface of the second convex teeth is provided with nylon cloth; When the first convex tooth is meshed with the second convex tooth, the first convex tooth is attached to the nylon cloth.

5. The driving mechanism for shoulder support according to any one of claims 1 to 4, characterized in that: The motor is mounted on the backrest.

6. The driving mechanism of the shoulder support according to claim 5, characterized in that: The length and width of the backrest are both greater than the thickness of the backrest, and the motor is arranged along the length direction of the backrest.

7. The driving mechanism for shoulder support according to any one of claims 1 to 4, characterized in that: The motor is mounted on the shoulder support.

8. The driving mechanism for shoulder support according to any one of claims 1 to 4, characterized in that: The center distance between the output shaft and the synchronization rod is greater than or equal to 168 mm.

9. A car seat, characterized in that: include: A seat and a backrest disposed on the seat, wherein the backrest is provided with a shoulder support; a recliner disposed between the shoulder support and the backrest; According to the driving mechanism as described in any one of claims 1 to 8, the synchronization rod is connected to the angle adjuster.

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