CN219584012U

CN219584012U - Car seat waist bearing structure

Info

Publication number: CN219584012U
Application number: CN202223592598.7U
Authority: CN
Inventors: 朱鹏程; 刘聚江; 周文杰
Original assignee: Jiangsu Yashi Technology Co ltd
Current assignee: Jiangsu Yashi Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-08-25
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to a lumbar support structure of an automobile seat, relates to the technical field of automobile related equipment, and aims to increase the stability of the rotation degree of a backrest during tilting or recovering; the seat cushion comprises an upper framework and a lower framework, wherein the upper framework is rotationally connected with the lower framework, a backrest is arranged on the upper framework, a seat cushion is arranged on the lower framework, a reset mechanism is further arranged on the upper framework, the reset mechanism comprises a reset assembly, the reset assembly comprises a rotating rod and a rebound piece, the rotating rod is rotationally connected with the upper framework, and the rebound piece is used for resetting the rotating angle between the rotating rod and the upper framework. The setting of resetting the subassembly can turn back into the rotation of bull stick for change when the back leans back or resumes initial condition is stable, and then has reduced the probability that leads to the human body to feel uncomfortable because the slope of back or resumes unstability, has increased user's experience and has felt. The present utility model has an effect of increasing the stability of the degree of rotation of the backrest upon tilting or restoration.

Description

Car seat waist bearing structure

Technical Field

The utility model relates to the technical field of automobile related equipment, in particular to a lumbar support structure of an automobile seat.

Background

With the continuous development of social economy and the increasing of the living standard of people, the demand of people for automobiles is increasing, and the automobile seat is used as equipment for users to sit on and plays an important role for automobiles.

Related Chinese patent publication No. CN211308321U discloses a lumbar support device of an automobile seat, which comprises an upper framework and a lower framework, wherein the upper framework is rotatably connected with the lower framework through a pin shaft. The upper framework and the lower framework are fixedly connected with connecting rods, an elastic rod is further arranged between the two connecting rods, and two ends of the elastic rod are fixedly connected with the two connecting rods respectively. The upper framework is fixedly connected with a backrest, and the lower framework is fixedly connected with a cushion. When the backrest is used, a user sits on the seat cushion for a long time, and feels tired, the user can lean backwards against the backrest, at the moment, the elastic rod is stretched and bent, the user can relax properly, and after the relaxation is completed, the backrest is restored to the original position under the action of the elastic rod.

With respect to the above related art, the inventor found that the elastic force change is unstable during the process of being stretched and bent, so that the backrest is not rotated stably when the user leans back against the backrest or returns to the original state, and thus the user can obviously feel discomfort of the back, and further the experience of the user is reduced, which is not beneficial to the body relaxation of the user.

Disclosure of Invention

In order to increase the stability of the degree of rotation of the backrest upon recline or return, the present utility model provides an automotive seat lumbar support structure.

The utility model provides a lumbar support structure of an automobile seat, which adopts the following technical scheme:

the utility model provides an automobile seat waist bearing structure, includes skeleton and lower skeleton, go up the skeleton with lower skeleton rotates to be connected, be provided with the back on the skeleton, be provided with the cushion on the lower skeleton, still be provided with canceling release mechanical system on the last skeleton, canceling release mechanical system includes the subassembly that resets, canceling release mechanical system includes bull stick and rebound piece, the bull stick with go up the skeleton and rotate to be connected, rebound piece be used for right the bull stick with go up the rotation angle between the skeleton resets.

Through adopting above-mentioned technical scheme, when the user leans backward because of feeling tired and propping up the back, the bull stick of being connected with the upper skeleton rotation takes place to rotate, and rebound piece is spacing and reset the turned angle of bull stick this moment. According to the utility model, the rebound piece resets the rotation angle of the rotating rod, so that the back is rotated backwards to be converted into the rotation of the rotating rod, the change is stable when the back is inclined backwards or restored to the initial state, the probability of human body discomfort caused by the inclination or the unstable restoration of the back is reduced, and the experience of a user is increased.

Preferably, the rebound member comprises a sliding block, a sliding rod and a return spring, wherein the sliding block is rotationally connected with the rotating rod, the sliding block is in sliding connection with the sliding rod, the sliding rod is installed on the lower framework, the return spring is sleeved on the sliding rod and located on one side, far away from the lower framework, of the sliding block, and two ends of the return spring are respectively connected with the sliding block and the sliding rod.

Through adopting above-mentioned technical scheme, when the user leans backward because of feeling tired and propping up the back, the bull stick of being connected with the upper bracket rotation takes place to rotate, and the bull stick drives the sliding block and slides to make reset spring compressed. When the user is relaxed completely, the return spring is restored to the initial state, so that the sliding block slides, and the rotating rod drives the upper framework to restore to the initial state. The reset piece is specifically arranged, so that the rotating rod is stable to recover, and the experience of a user is improved.

Preferably, the reset mechanism further comprises an adjusting assembly, the adjusting assembly comprises a driving piece and an adjusting frame, the sliding rod penetrates through the adjusting frame and is in sliding connection with the adjusting frame, one end, away from the lower framework, of the adjusting frame is connected with the reset spring, and the driving piece is used for driving the adjusting frame to slide.

Through adopting above-mentioned technical scheme, when the personnel of driving the car changed, the position of user accessible control drive piece and then regulation alignment jig to can change the initial angle of bull stick, and then make the initial angle of back obtain adjusting, make the back can make the adjustment according to user's difference, increased user's experience and felt.

Preferably, the driving piece comprises a driving motor and a driving screw rod, the driving motor is mounted on the lower framework, the axis of an output shaft of the driving motor is parallel to the axis of the sliding rod, the output shaft of the driving motor is connected with one end of the driving screw rod, and the driving screw rod penetrates through the adjusting frame and is in threaded connection with the adjusting frame.

Through adopting above-mentioned technical scheme, when the driving piece takes place the during operation, driving motor's output shaft rotates, and then drives and driving motor output shaft's drive lead screw takes place to rotate, and then drives the alignment jig and take place the displacement. The displacement of the adjusting frame can be controlled by the specific arrangement of the driving assembly, so that the angle of the backrest can be accurately controlled.

Preferably, the lower framework is further provided with a guide rod, the guide rod penetrates through one end, far away from the driving screw rod, of the adjusting frame, the guide rod is in sliding connection with the adjusting frame, and the axis of the guide rod is parallel to the axis of the driving screw rod.

Through adopting above-mentioned technical scheme, setting up the guide bar, can lead the displacement of alignment jig, the existence of guide bar simultaneously can also make the displacement of alignment jig more mild.

Preferably, the number of the reset mechanisms is set to be a plurality.

Through adopting above-mentioned technical scheme, be a plurality of setting to canceling release mechanical system, increased the stationarity to the back support, and then reduced because the unstable probability that leads to canceling release mechanical system to take place to damage of back support.

Preferably, a buffer spring is arranged at one end of each adjusting frame far away from the return spring, the buffer spring is sleeved on the corresponding sliding rod, and two ends of each buffer spring are respectively connected with the corresponding sliding block and the adjusting frame.

Through adopting above-mentioned technical scheme, when reset spring resets the slider, the slider takes place the displacement under reset spring elastic force, and when reset spring resumes initial state, because the slider has inertia, the slider can continue a small distance of forward displacement, and buffer spring is compressed this moment, and the slider receives the resistance and stops gradually. The buffer spring is arranged, so that the size of continuous displacement of the sliding block after the sliding block is restored to the initial state can be reduced, and further the rotation angle of the backrest after the backrest is restored to the initial state is reduced, the impact of the backrest on a human body is effectively reduced, and the experience of a user is improved.

Preferably, an elastic cushion is further arranged on one surface of the backrest, which is close to the cushion.

Through adopting above-mentioned technical scheme, to the setting of elastic pad, effectively reduced the impact force to the human body when the back resumes initial position for the back of human body can be effectively protected by the elastic pad, has increased user's experience and has felt.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the reset assembly is arranged, so that the back can be rotated backwards to be converted into the rotation of the rotating rod, the change is stable when the back is inclined backwards or is restored to the initial state, the probability of human body discomfort caused by the inclination or the restoration instability of the back is further reduced, and the experience of a user is improved;

2. the setting of the adjusting component enables a user to control the driving piece to adjust the position of the adjusting frame, so that the initial angle of the rotating rod can be changed, the initial angle of the backrest can be adjusted, the backrest can be adjusted according to different users, and the experience of the user is improved;

3. the buffer spring is arranged, so that the size of continuous displacement of the sliding block after the sliding block is restored to the initial state can be reduced, and further the rotation angle of the backrest after the backrest is restored to the initial state is reduced, the impact of the backrest on a human body is effectively reduced, and the experience of a user is improved.

Drawings

FIG. 1 is a schematic view of an overall lumbar support structure for an automotive seat in accordance with an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a reset mechanism according to an embodiment of the present utility model.

Reference numerals illustrate: 1. an upper framework; 2. a lower skeleton; 3. a reset mechanism; 31. a reset assembly; 311. a rotating rod; 312. a rebound member; 3121. a sliding block; 3122. a sliding rod; 3123. a return spring; 32. an adjustment assembly; 321. an adjusting frame; 322. a driving member; 3221. a driving motor; 3222. driving a screw rod; 323. a guide rod; 33. a buffer spring; 4. a backrest; 5. an elastic pad; 6. and (5) a cushion.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses a lumbar support structure of an automobile seat. Referring to fig. 1 and 2, the lumbar support structure of the car seat comprises an upper framework 1 and a lower framework 2, wherein the bottom end of the upper framework 1 is rotatably connected with one end of the lower framework 2 through a pin shaft. The upper framework 1 is also provided with a plurality of reset mechanisms 3, preferably, the number of the reset mechanisms 3 is two, and the two reset mechanisms 3 are respectively positioned at two ends of the upper framework 1 along the width direction of the upper framework. Each reset mechanism 3 includes a reset assembly 31, the reset assembly 31 including a rotating lever 311 and a rebound member 312.

Referring to fig. 1 and 2, rebound member 312 comprises a glide block 3121 and a glide rod 3122. The top of the rotating rod 311 is rotationally connected with the upper framework 1 through a pin shaft, and the axis of the rotating rod 311 rotationally connected with the upper framework 1 is parallel to the axis of the rotating connection of the upper framework 1 and the lower framework 2. The bottom of bull stick 311 is connected through the round pin axle rotation with slider 3121, and the one end of slider 3122 passes the lateral wall of slider 3121 and with slider 3121's lateral wall sliding connection, and the axis of bull stick 311 is parallel with the length direction of lower skeleton 2, and bull stick 311 is located the downside of lower skeleton 2. One end of the rotating rod 311 is fixedly connected with the bottom wall of the lower framework 2, and the other end of the rotating rod 311 is fixedly connected with the body of the automobile.

Referring to fig. 1 and 2, the reset mechanism 3 further includes an adjustment assembly 32, and the adjustment assembly 32 includes an adjustment bracket 321. Both ends of the sliding rod 3122 respectively pass through both ends of the adjusting frame 321 in the self length direction and are slidably connected with the adjusting frame 321, and the sliding block 3121 is located between both ends of the adjusting frame 321 in the self length direction. The rebound member 312 further includes a return spring 3123, the return spring 3123 is sleeved on the sliding rod 3122, the return spring 3123 is located between the sliding block 3121 and one end of the adjusting frame 321 far away from the seat cushion 6, and two ends of the return spring 3123 are fixedly connected with the sliding block 3121 and the adjusting frame 321 respectively.

Referring to fig. 1 and 2, when the user leans backward against the backrest 4 due to tiredness, the rotation of the rotation lever 311 rotatably coupled to the upper frame 1 occurs, and the rotation lever 311 drives the sliding block 3121 to slide, so that the return spring 3123 is compressed. When the user releases completely, the return spring 3123 returns to the initial state, and the sliding block 3121 slides in the process, and the rotating rod 311 drives the upper frame 1 to return to the initial state. The side of the sliding block 3121 away from the reset spring 3123 is also provided with a buffer spring 33, the buffer spring 33 is positioned between the sliding block 3121 and the adjusting frame 321, and two ends of the buffer spring 33 are respectively fixedly connected with the sliding block 3121 and the adjusting frame 321. The buffer spring 33 can reduce the magnitude of the continued displacement of the glide block 3121 after the return to the initial state.

Referring to fig. 1 and 2, the adjusting assembly 32 further includes a driving member 322, where the driving member 322 includes a driving motor 3221 and a driving screw rod 3222, the body of the driving motor 3221 is fixedly mounted at the bottom end of the lower skeleton 2, the axis of the output shaft of the driving motor 3221 is parallel to the axis of the sliding rod 3122, and one end of the output shaft of the driving motor 3221 is fixedly connected with one end of the driving screw rod 3222. The driving screw rod 3222 is coaxially arranged with the output shaft of the driving motor 3221, and the other end of the driving screw rod 3222 is rotatably connected with the lower framework 2 through a bracket. The driving screw 3222 passes through one end side wall of the adjusting frame 321 and is in threaded connection with the adjusting frame 321.

Referring to fig. 1 and 2, a guide rod 323 is further provided at a side of the adjusting frame 321 away from the driving screw 3222, both ends of the guide rod 323 are fixedly connected with the lower frame 2, and the guide rod 323 passes through a side wall of one end of the adjusting frame 321 and is slidably connected with the adjusting frame 321. The guide bar 323 can guide the displacement of the adjusting frame 321, and can also make the displacement of the adjusting frame 321 more gentle. When the person driving the automobile changes, the user can drive the driving screw rod 3222 to rotate by controlling the output shaft of the driving motor 3221, and then drives the adjusting frame 321 to displace, at this moment, the rotating rod 311 rotates under the gravity action of the backrest 4, and then drives the sliding block 3121 to displace, so that the initial angle of the rotating rod 311 can be changed, and then the initial angle of the backrest 4 can be adjusted to adapt to different users.

Referring to fig. 1 and 2, a backrest 4 is fixedly mounted on the upper frame 1, the backrest 4 is located at one side of the upper frame 1 close to the lower frame 2, and an elastic pad 5 is fixedly connected to one side of the backrest 4 away from the upper frame 1. The elastic pad 5 can effectively reduce the impact force to the human body when the backrest 4 is restored to the initial position, so that the back of the human body can be effectively protected by the elastic pad 5. The top of the lower framework 2 is also provided with a cushion 6, and the bottom end of the cushion 6 is fixedly arranged on the top of the lower framework 2.

The implementation principle of the lumbar support structure of the automobile seat provided by the embodiment of the utility model is as follows: when the backrest 4 is tilted backward due to fatigue, the backrest 4 drives the rotating rod 311 to rotate, so that the sliding block 3121 slides along the axial direction of the sliding rod 3122, and the return spring 3123 is compressed. When the rest of the user is completed, the user returns to the initial posture, and the sliding block 3121 returns to the initial position under the elastic force of the return spring 3123, so as to drive the rotating rod 311 and the backrest 4 to return to the initial position.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a car seat waist bearing structure, includes skeleton (1) and lower skeleton (2), go up skeleton (1) with lower skeleton (2) rotate and connect, be provided with back (4) on last skeleton (1), be provided with cushion (6) on lower skeleton (2), its characterized in that: the upper framework (1) is further provided with a reset mechanism (3), the reset mechanism (3) comprises a reset assembly (31), the reset assembly (31) comprises a rotating rod (311) and a rebound piece (312), the rotating rod (311) is rotationally connected with the upper framework (1), and the rebound piece (312) is used for resetting the rotating angle between the rotating rod (311) and the upper framework (1).

2. The lumbar support structure of a car seat according to claim 1, wherein: the rebound piece (312) comprises a sliding block (3121), a sliding rod (3122) and a return spring (3123), wherein the sliding block (3121) is rotationally connected with the rotating rod (311), the sliding block (3121) is in sliding connection with the sliding rod (3122), the sliding rod (3122) is installed on the lower framework (2), the return spring (3123) is sleeved on the sliding rod (3122) and is positioned on one side, away from the lower framework (2), of the sliding block (3121), and two ends of the return spring (3123) are respectively connected with the sliding block (3121) and the sliding rod (3122).

3. The lumbar support structure of a car seat according to claim 2, wherein: the reset mechanism (3) further comprises an adjusting assembly (32), the adjusting assembly (32) comprises a driving piece (322) and an adjusting frame (321), the sliding rod (3122) penetrates through the adjusting frame (321) and is in sliding connection with the adjusting frame (321), one end, away from the lower framework (2), of the adjusting frame (321) is connected with the reset spring (3123), and the driving piece (322) is used for driving the adjusting frame (321) to slide.

4. A lumbar support structure for a car seat as set forth in claim 3, wherein: the driving piece (322) comprises a driving motor (3221) and a driving screw rod (3222), the driving motor (3221) is installed on the lower framework (2), the axis of an output shaft of the driving motor (3221) is parallel to the axis of the sliding rod (3122), the output shaft of the driving motor (3221) is connected with one end of the driving screw rod (3222), and the driving screw rod (3222) passes through the adjusting frame (321) and is in threaded connection with the adjusting frame (321).

5. The lumbar support structure of a car seat as set forth in claim 4, wherein: the lower framework (2) is further provided with a guide rod (323), the guide rod (323) penetrates through the adjusting frame (321) to be far away from one end of the driving screw rod (3222), the guide rod (323) is in sliding connection with the adjusting frame (321), and the axis of the guide rod (323) is parallel to the axis of the driving screw rod (3222).

6. The lumbar support structure of a car seat as set forth in claim 5, wherein: the number of the reset mechanisms (3) is set to be a plurality.

7. A lumbar support structure for a car seat as set forth in claim 3, wherein: the adjusting frame (321) is far away from one end of the reset spring (3123) and is provided with a buffer spring (33), the buffer spring (33) is sleeved on the sliding rod (3122), and two ends of the buffer spring (33) are respectively connected with the sliding block (3121) and the adjusting frame (321).

8. The lumbar support structure of a car seat according to claim 1, wherein: an elastic cushion (5) is further arranged on one surface of the backrest (4) close to the cushion (6).