CN218805344U

CN218805344U - Extension adjusting mechanism of automobile seat and automobile seat

Info

Publication number: CN218805344U
Application number: CN202222931249.7U
Authority: CN
Inventors: 张辉; 刁中慈
Original assignee: Jifeng Seats Hefei Co ltd
Current assignee: Jifeng Seats Hefei Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-04-07
Anticipated expiration: 2032-11-03

Abstract

The utility model relates to a car seat technical field discloses a car seat's extension adjustment mechanism and car seat, should extend adjustment mechanism and include: the mounting bracket is provided with a chute; the backrest framework is rotatably arranged on the mounting bracket; the connecting rod mechanism comprises a first connecting rod and a second connecting rod, the first connecting rod is hinged to the mounting bracket, a first connecting part and a second connecting part are arranged on the first connecting rod, the distance between the first connecting part and the rotating center of the second connecting rod is smaller than the distance between the second connecting part and the rotating center of the second connecting rod, the first connecting part is connected with the backrest framework, and the second connecting part is hinged to the second connecting rod; one end of the second connecting rod is hinged with the seat cushion framework through a first pin shaft, and the first pin shaft is arranged in the sliding groove in a sliding mode. The utility model has the advantages of, this extension adjustment mechanism can prevent the problem of back top passenger's waist, and the passenger comfort is high, and accessible actuating arm and first connecting rod enlarge the motion stroke of seatpad skeleton, and the regulation reaction is sensitive.

Description

Extension adjustment mechanism and car seat of car seat

Technical Field

The utility model relates to a car seat technical field especially relates to a car seat's extension adjustment mechanism and car seat.

Background

The comfort of car seat directly influences driver and passenger's the experience of taking and feels, and in order to improve passenger's experience sense, adjustable is all set to general car seat, and not only car seat's position can be adjusted from beginning to end, and the inclination of back for the seatpad also can be adjusted.

Among the current car seat, the people sits on the seatpad, when adjusting the inclination of back for the seatpad, the seatpad is generally motionless, can appear the back top in the condition of people's waist, influences the travelling comfort of person of taking, leads to experiencing the sense poor.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art exists, the utility model discloses the technical problem that will solve lies in: the stretching adjusting mechanism of the automobile seat and the automobile seat are good in comfort and convenient to adjust.

The utility model provides a technical scheme that its technical problem adopted is, provides a car seat's extension adjustment mechanism, include:

a mounting bracket provided with a chute;

the backrest framework is rotatably arranged on the mounting bracket;

the seat cushion comprises a seat cushion framework and a connecting rod mechanism, wherein the connecting rod mechanism comprises a first connecting rod and a second connecting rod, the first connecting rod is hinged to the mounting bracket, the first connecting rod is provided with a first connecting part and a second connecting part, the distance between the rotating centers of the first connecting part and the second connecting rod is smaller than the distance between the rotating centers of the second connecting part and the second connecting rod, the first connecting part is connected with the backrest framework, and the second connecting part is hinged with the second connecting rod; one end, far away from the first connecting rod, of the second connecting rod is hinged to the seat cushion framework through a first pin shaft, and the first pin shaft is arranged in the sliding groove in a sliding mode.

Further, the backrest framework comprises a framework main body and a driving arm protruding downwards along the framework main body, the framework main body is rotatably installed on the installation support, and the driving arm is connected with the first connecting portion.

Furthermore, a waist hole is formed in the first connecting portion, a second pin shaft is arranged on the driving arm, and the second pin shaft is slidably arranged in the waist hole in a penetrating mode.

Further, still including supporting the supporting mechanism on the seatpad skeleton, supporting mechanism includes supporting seat and third connecting rod, the one end of third connecting rod articulates on the supporting seat, the other end of third connecting rod with the seatpad skeleton is articulated.

Further, the mounting bracket is L-shaped and comprises a transverse bracket and a longitudinal bracket which are connected, the backrest framework is rotatably mounted on the longitudinal bracket, the sliding groove is formed in the transverse bracket, and the sliding groove is formed in the length direction of the seat cushion framework.

Furthermore, the sliding groove is provided with a circle of rubber pad along the circumferential direction of the sliding groove, and the first pin shaft is slidably arranged in the rubber pad.

Further, the supporting seat sets up side by side the place ahead of installing support, just the supporting seat with all have a bottom plate on the installing support, seted up a plurality of through-holes on the bottom plate, the bolt can pass the through-hole will the supporting seat or the installing support is fixed on automobile body.

The utility model provides a technical scheme that its technical problem adopted is, still provides a car seat, including foretell car seat's extension adjustment mechanism.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the utility model discloses in, in the use, back and back skeleton fixed link, seatpad and seatpad skeleton fixed connection, this scheme has seted up the spout on the installing support, and first round pin axle slidable ground on the seatpad skeleton sets up in the spout, and is connected through first connecting rod and second connecting rod between back skeleton and the seatpad skeleton, and when the inclination of adjusting the back skeleton, the back skeleton can drive the seatpad skeleton through first connecting rod and second connecting rod and slide along the fore-and-aft direction. When a passenger sits on the seat cushion, the seat cushion can be driven to slide forwards and backwards by adjusting the inclination angle of the backrest, the situation that the backrest pushes the waist of the passenger cannot occur, and the comfort of the passenger can be ensured. The backrest framework is provided with a driving arm, and the driving arm lengthens the rotation radius of the backrest framework, so that the movement stroke of the seat cushion framework can be amplified in one stage; the turning radius of the first connecting part on the first connecting rod is smaller than that of the second connecting part, the movement stroke of the seat cushion framework can be amplified in two stages, namely, the front and back movement of the seat cushion framework with a large stroke can be driven under the condition of adjusting the backrest in a small range, the reaction is sensitive, and the installation space of the seat in the height direction is saved.

Drawings

Fig. 1 is a schematic structural view of the stretching adjustment mechanism of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a schematic plan view of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 3 with the mounting bracket removed;

fig. 5 is a schematic structural view of the first link.

In the figure:

1. mounting a bracket; 10. a transverse support; 101. a chute; 11. a longitudinal support; 12. a rubber pad;

2. a backrest framework; 20. a skeleton body; 21. a drive arm; 211. a second pin shaft;

3. a seat cushion framework;

4. a link mechanism; 40. a first link; 41. a second link; 42. a first pin shaft; 401. a first connection portion; 402. a second connecting portion;

5. a support mechanism; 50. a supporting base; 501. a base plate; 51. a third link.

Detailed Description

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

It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, the technical solutions of the embodiments of the present invention can be combined with each other, but it is necessary to use a person skilled in the art to realize the basis, and when the technical solutions are combined and contradictory to each other or cannot be realized, the combination of the technical solutions should not exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 5, an extension adjusting mechanism for a vehicle seat mainly includes: the mounting bracket 1, the back frame, the seat cushion frame 3, the link mechanism 4, the support mechanism 5, and some hinged parts, the link mechanism 4 includes a first link 40 and a second link 41, and the support mechanism 5 includes a support base 50 and a third link 51.

Be equipped with spout 101 on installing support 1, specifically do, installing support 1 is L shape setting, including continuous horizontal support 10 and vertical support 11, the whole accessible stamping forming of installing support 1. The backrest framework is rotatably installed on the longitudinal support 11, the sliding groove 101 is formed in the transverse support 10, and the sliding groove 101 is formed along the length direction of the seat cushion framework 3. The sliding groove 101 is provided with a circle of rubber pads 12 along the circumferential direction of the sliding groove, the first pin shaft 42 is slidably arranged in the rubber pads 12, the rubber pads 12 can prevent the first pin shaft 42 from being in rigid contact and friction with the mounting bracket 1, noise is prevented, and the mounting bracket 1 and the first pin shaft 42 can be protected.

The back skeleton rotationally sets up on the installing support 1, during the use, back and back skeleton fixed connection, when the back skeleton rotates for installing support 1, and the inclination of back changes, and the passenger can sit and can lie.

The seat cushion comprises a seat cushion framework 3 and a link mechanism 4, wherein the link mechanism 4 comprises a first link 40 and a second link 41, the first link 40 is hinged on the mounting bracket 1, the first link 40 is respectively provided with a first connecting part 401 and a second connecting part 402, the distance between the rotating centers of the first connecting part 401 and the second link 41 is smaller than the distance between the rotating centers of the second connecting part 402 and the second link 41, the first connecting part 401 is connected with the backrest framework, and the second connecting part 402 is hinged with the second link 41; one end of the second link 41, which is far away from the first link 40, is hinged to the seat cushion frame 3 through a first pin 42, and the first pin 42 is slidably disposed in the sliding groove 101. In the first connecting rod 40, the first connecting portion 401 is connected to the backrest frame, the second connecting portion 402 is connected to the second connecting rod 41, the first connecting portion 401 is connected to a power input end, the second connecting portion 402 is connected to a power output end, and the first connecting portion 401 with a small stroke can drive the second connecting rod 41 to move with a large stroke.

Preferably, the backrest frame includes a frame main body 20 and a driving arm 21 protruding downward along the frame main body 20, the frame main body 20 is rotatably mounted on the mounting bracket 1, and the driving arm 21 is connected to the first connection portion 401. A waist hole is formed in the first connecting portion 401, a second pin shaft 211 is arranged on the driving arm 21, and the second pin shaft 211 is slidably inserted into the waist hole.

In actual use, the extension adjustment mechanism of the present embodiment: the mounting bracket 1 is provided with a sliding groove 101, the first pin shaft 42 on the seat cushion framework 3 is slidably arranged in the sliding groove 101, and the backrest framework and the seat cushion framework 3 are connected through a first connecting rod 40 and a second connecting rod 41, when the inclination angle of the backrest framework is adjusted, the backrest framework can drive the seat cushion framework 3 to slide along the front-back direction through the first connecting rod 40 and the second connecting rod 41. When a passenger sits on the seat cushion, the seat cushion can be driven to slide forwards and backwards by adjusting the inclination angle of the backrest, the situation that the backrest pushes the waist of the passenger cannot occur, and the comfort of the passenger can be ensured. The backrest framework is provided with a driving arm 21, and the driving arm 21 lengthens the rotation radius of the backrest framework, so that the movement stroke of the seat cushion framework 3 can be amplified in one step; the turning radius of the first connecting part 401 on the first connecting rod 40 is smaller than that of the second connecting part 402, so that the movement stroke of the seat cushion framework 3 can be amplified in two stages, namely, the seat cushion framework 3 can be driven to move back and forth in a larger stroke under the condition of adjusting the backrest in a small range, the reaction is sensitive, and the installation space in the height direction of the seat is saved.

The stretching adjusting mechanism further comprises a supporting mechanism 5 supported on the seat cushion framework 3, the supporting mechanism 5 comprises a supporting seat 50 and a third connecting rod 51, one end of the third connecting rod 51 is hinged to the supporting seat 50, the other end of the third connecting rod 51 is hinged to the seat cushion framework 3, and the third connecting rod 51 can assist the seat cushion support to slide forwards and can provide a certain supporting force. Specifically, the supporting seat 50 sets up side by side the place ahead of installing support 1, just the supporting seat 50 with all have a bottom plate 501 on the installing support 1, a plurality of through-holes have been seted up on the bottom plate 501, and the bolt can pass the through-hole will the supporting seat 50 or installing support 1 fixes on the automobile body.

The working principle of the extension adjusting mechanism is as follows: the seat cushion framework 3 is driven to rotate backwards relative to the mounting bracket 1, the inclination angle of the seat cushion framework 3 is adjusted, the driving arm 21 on the seat cushion framework 3 drives the first connecting rod 40 to rotate, namely, the first connecting part 401 and the second connecting part 402 both rotate, the second connecting part 402 drives the second connecting rod 41 to move, the second connecting rod 41 drives the first pin shaft 42 to slide forwards along the sliding groove 101, the seat cushion framework 3 is driven to slide forwards, and a passenger sitting on the seat cushion can be lifted forwards and upwards.

In this scheme, extend adjustment mechanism can prevent the problem of back top passenger's waist, and passenger comfort is high, and accessible actuating arm 21 and first connecting rod 40 enlarge seatpad skeleton 3's motion stroke, and the regulation reaction is sensitive.

Claims

1. An extension adjustment mechanism for a vehicle seat, comprising:

a mounting bracket provided with a chute;

the backrest framework is rotatably arranged on the mounting bracket;

the seat cushion comprises a seat cushion framework and a connecting rod mechanism, wherein the connecting rod mechanism comprises a first connecting rod and a second connecting rod, the first connecting rod is hinged to the mounting bracket, a first connecting part and a second connecting part are respectively arranged on the first connecting rod, the distance between the first connecting part and the rotating center of the second connecting rod is smaller than the distance between the second connecting part and the rotating center of the second connecting rod, the first connecting part is connected with the backrest framework, and the second connecting part is hinged to the second connecting rod; one end, far away from the first connecting rod, of the second connecting rod is hinged to the seat cushion framework through a first pin shaft, and the first pin shaft is arranged in the sliding groove in a sliding mode.

2. The extension adjusting mechanism of a car seat according to claim 1, wherein the backrest frame includes a frame body and a driving arm protruding downward along the frame body, the frame body is rotatably mounted on the mounting bracket, and the driving arm is connected to the first connecting portion.

3. The extension adjusting mechanism of an automobile seat as claimed in claim 2, wherein the first connecting portion has a waist hole, and the driving arm has a second pin slidably disposed through the waist hole.

4. The extension adjusting mechanism for a car seat according to claim 1, further comprising a support mechanism supported on the seat cushion frame, the support mechanism including a support base and a third link, one end of the third link being hinged to the support base, and the other end of the third link being hinged to the seat cushion frame.

5. The extension adjusting mechanism of a car seat according to claim 1, wherein the mounting bracket is L-shaped and includes a transverse bracket and a longitudinal bracket connected to each other, the backrest frame is rotatably mounted on the longitudinal bracket, the sliding groove is formed on the transverse bracket, and the sliding groove is formed along a length direction of the seat cushion frame.

6. The extension adjustment mechanism for a car seat according to claim 1, wherein said sliding groove is provided with a ring of rubber pad along its circumference, and said first pin is slidably provided in said rubber pad.

7. The extension adjustment mechanism for automobile seats of claim 4, wherein the supporting seat is disposed side by side in front of the mounting bracket, and the supporting seat and the mounting bracket are both provided with a bottom plate, the bottom plate is provided with a plurality of through holes, and bolts can pass through the through holes to fix the supporting seat or the mounting bracket on the automobile body.

8. A car seat characterized by comprising the extension adjusting mechanism of a car seat according to any one of claims 1 to 7.