CN219505885U

CN219505885U - Seat back adjusting mechanism capable of realizing damping force

Info

Publication number: CN219505885U
Application number: CN202320614190.0U
Authority: CN
Inventors: 李俊伟; 汤良; 孙亚飞; 汪政光; 焦星星
Original assignee: Keiper Changshu Seating Mechanisms Co Ltd
Current assignee: Keiper Changshu Seating Mechanisms Co Ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-08-11
Anticipated expiration: 2033-03-27

Abstract

The utility model discloses a seat back adjusting mechanism capable of realizing damping force, which comprises: the bracket is provided with a chute; the screw rod is arranged on the bracket and connected with a driving unit, and the driving unit can drive the screw rod to rotate; the sliding block is sleeved on the screw rod in a threaded manner and is fixedly connected with the lock hook of the back row backrest of the automobile seat; and the damping unit is penetrated in the sliding groove and connected with the sliding block, and can generate friction damping force opposite to the moving direction of the sliding block when the sliding block is driven to move left and right along the axial direction of the screw rod by the screw rod in a rotating way. The utility model has smaller external dimension and less number of parts, and can reduce the cost; the damping design can reduce the clearance and the operation is more stable.

Description

Seat back adjusting mechanism capable of realizing damping force

Technical Field

The utility model relates to the technical field of automobile seats, in particular to a seat back adjusting mechanism capable of achieving damping force.

Background

The seat back adjusting mechanism space occupation of damping force of the automobile seat in the prior market is larger, and the intensity is lower. The application number is as follows: the utility model patent of CN201910379222.1 discloses an adjustable electric lock ring of a back-row seat backrest, which comprises a lock ring, a lock catch mounting seat, a motor, a screw rod and a sliding block, wherein the sliding block is sleeved on the screw rod to form a screw rod nut mechanism, the lock ring is fixedly arranged on the sliding block, the screw rod is arranged on the lock catch mounting seat, and the motor drives the sliding block to slide through the screw rod, so that the lock ring is driven to move left and right. The space occupation is larger, the cost is higher, and the gap is larger.

Disclosure of Invention

In view of the above, it is desirable to provide a seat back adjusting mechanism capable of achieving a damping force.

A seat back adjustment mechanism that achieves a damping force, comprising:

the bracket is provided with a chute;

the screw rod is arranged on the bracket and connected with a driving unit, and the driving unit can drive the screw rod to rotate;

the sliding block is sleeved on the screw rod in a threaded manner and is fixedly connected with the lock hook of the back row backrest of the automobile seat;

and the damping unit is penetrated in the sliding groove and connected with the sliding block, and can generate friction damping force opposite to the moving direction of the sliding block when the sliding block is driven to move left and right along the axial direction of the screw rod by the screw rod in a rotating way.

In one embodiment, the damping unit includes:

the clamping block is integrally arranged on the sliding block, and the outer end face of the clamping block is contacted with the inner side edge of the sliding groove;

the screw penetrates through the sliding groove, the stud section of the screw is fixedly connected with the clamping block, and the inner end face of the screw head of the screw is contacted with the outer side edge of the sliding groove.

In one embodiment, the bottom of the clamping block is provided with a downwardly extending flange, and a gap is formed between the end surface of the flange and the inner end surface of the screw head of the screw.

In one embodiment, a base plate is arranged on the inner side edge of the sliding groove, and the base plate is contacted with the outer end face of the clamping block.

In one embodiment, the length direction of the sliding groove is parallel to the axial direction of the screw rod.

In one embodiment, threads are arranged in the slider, and the threads are matched with the threads of the screw rod.

In one embodiment, the latch hook is fixedly connected with the slider through riveting.

According to the seat backrest adjusting mechanism capable of realizing the damping force, the damping unit is arranged in the sliding groove of the bracket in a penetrating mode, after the driving unit drives the screw rod to rotate, the sliding block can be driven to move left and right along the axis direction of the screw rod, at the moment, the damping unit can generate friction damping force opposite to the moving direction of the sliding block, so that the sliding damping force in the X direction can be increased, and meanwhile, the Y-direction movement and the Z-direction clearance are limited. Therefore, the utility model has smaller external dimension and less parts, and can reduce the cost; the damping design can reduce the clearance and the operation is more stable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a damping force enabled seat back adjustment mechanism of the present utility model;

FIG. 2 is a schematic view of another angle of the seat back adjustment mechanism of the present utility model that achieves a damping force;

FIG. 3 is a schematic view of the structure of the damping unit of the present utility model;

fig. 4 is an enlarged partial schematic view of the damping unit of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1-4, one embodiment of the present utility model provides a seat back adjustment mechanism capable of achieving a damping force, comprising:

the bracket 1 is provided with a chute 11;

the screw rod 2 is arranged on the bracket 1, the screw rod 2 is connected with a driving unit 3, and the driving unit 3 can drive the screw rod 2 to rotate; alternatively, the driving unit 3 may be a motor or the like.

The sliding block 4 is sleeved on the screw rod 2 in a threaded manner, and the sliding block 4 is fixedly connected with a lock hook 5 of a back row backrest of the automobile seat;

and the damping unit 6 is penetrated in the chute 11 and connected with the sliding block 4, and when the screw rod 2 rotationally drives the sliding block 4 to move left and right along the axis direction of the screw rod 2, the damping unit 6 can generate a friction damping force opposite to the moving direction of the sliding block 4.

According to the seat back adjusting mechanism capable of realizing the damping force, the damping unit 6 is arranged in the sliding groove 11 of the bracket 1 in a penetrating manner, when the driving unit 3 drives the screw rod 2 to rotate, the sliding block 4 can be driven to move left and right along the axis direction of the screw rod 2, at the moment, the damping unit 6 can generate friction damping force opposite to the moving direction of the sliding block 4, so that the sliding damping force in the X direction can be increased, and meanwhile, the Y-direction movement and the Z-direction clearance are limited. Therefore, the utility model has smaller external dimension, less parts and reduced cost; the gap can also be reduced and the operation is smoother.

In the present utility model, the X direction is defined as the direction parallel to the axis of the screw 2 in the horizontal plane, the Y direction is defined as the direction perpendicular to the axis of the screw 2 in the horizontal plane, and the Z direction is defined as the vertical direction.

In an embodiment of the present utility model, the damping unit 6 includes:

a clamping block 61 integrally provided on the slider 4, wherein an outer end surface of the clamping block 61 contacts with an inner side edge of the chute 11;

the screw 62 is inserted into the chute 11, the stud section of the screw 62 is fixedly connected with the clamping block 61, and the inner end surface of the screw head of the screw 62 is contacted with the outer side edge of the chute 11.

In this embodiment, the mounting torque is applied to the screw 62 to be fitted to the internal thread of the clamp block 61. The clamping block 61 and the screw 62 exert a clamping force on the chute 11 under the effect of the mounting torque. When the slider 4 and the clamping block 61 are driven to move, the screw 62 also slides in the chute 11, and a frictional damping force opposite to the running direction of the slider 4 is generated by the clamping force of the clamping block 61 and the screw 62.

In an embodiment of the present utility model, the bottom of the clamping block 61 is provided with a downward extending flange 63, and in this embodiment, the flange 63 is provided to increase the effective length of the internal thread of the clamping block 61, increase the contact area between the clamping block 61 and the screw 62, and improve the connection strength. Optionally, a gap is provided between the end face of the flange 63 and the inner end face of the screw head of the screw 62. In this way, both the clamping block 61 and the screw 62 can be brought into contact with the lateral edge of the chute 11 and maintain a suitable pre-tightening force.

In one embodiment of the present utility model, a pad 12 is disposed on the inner side of the chute 11, and the pad 12 contacts with the outer end surface of the clamping block 61. In this way, the strength of the side of the chute 11 can be increased, and the abrasion of the chute 11 can be reduced.

In an embodiment of the present utility model, the length direction of the chute 11 is parallel to the axial direction of the screw 2. Thus, the jamming phenomenon generated when the sliding block 4 moves left and right along the axis direction of the screw rod 2 can be avoided.

In an embodiment of the present utility model, the slider 4 is internally provided with threads, which are matched with the threads of the screw rod 2. Optionally, the internal threads of the sliding block 4 may be trapezoidal threads, so that the load capacity of the sliding block 4 and the screw rod 2 can be increased, the stress intensity of the sliding block is improved, and the self-locking effect is achieved.

Optionally, the latch hook 5 is fixedly connected with the slider 4 through riveting. In this way, the robustness of the connection structure can be increased.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The examples described above represent only a few embodiments of the present utility model and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A seat back adjustment mechanism that achieves a damping force, comprising:

the bracket is provided with a chute;

2. The seat back adjustment mechanism of claim 1, wherein the damping unit comprises:

3. The seat back adjustment mechanism for achieving a damping force according to claim 2, wherein the bottom of the clamp block is provided with a downwardly extending flange having a gap between an end surface of the flange and an inner end surface of a screw head of the screw.

4. A seat back adjustment mechanism for achieving a damping force as claimed in claim 3, wherein a pad is provided on an inner side of the slide groove, the pad being in contact with an outer end surface of the clamp block.

5. The seat back adjusting mechanism capable of realizing a damping force according to claim 1, wherein a length direction of the chute is parallel to an axial direction of the screw.

6. The seat back adjustment mechanism for achieving a damping force according to claim 1, wherein the slider is internally provided with threads which mate with threads of the screw rod.

7. The seat back adjustment mechanism of claim 1 wherein the latch hook is fixedly attached to the slider by staking.