Cushion assembly and automobile seat

Abstract

The utility model discloses a seat cushion assembly and an automobile seat, the bottom of the seat cushion assembly is arranged on a seat cushion slide rail in a sliding mode, and the seat cushion assembly is characterized by comprising a seat cushion frame and a seat cushion installed on the seat cushion frame in a sliding mode; a seat cushion guide part is arranged on the seat cushion frame, the seat cushion guide part is obliquely arranged upwards from back to front, and the lower portion of the seat cushion is connected with the seat cushion guide part in a sliding mode; and a seat cushion driving part is further arranged, and the seat cushion driving part drives the seat cushion to move along the seat cushion guide part. According to the utility model, the comfort of passengers in the cushion adjusting process is improved, and the cost is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a seat, especially a cushion assembly and an automobile seat. BACKGROUND

[0002] The automobile seat is the necessary configuration of the interior trim of the automobile, and is the most direct embodiment for the owner to perceive whether the vehicle is comfortable or not. The main factor affecting the comfort of the seat is still the man-machine engineering design of the seat.

[0003] The electric seat is a common seat in the automobile. In the electric automobile seat, the functions of the angle adjustment of the waist support, the forward and backward adjustment of the cushion and the height adjustment of the cushion are provided. For the height adjustment of the cushion, two motors are generally adopted, a front motor and a rear motor. When the front motor works, the front side of the cushion is pushed upward or downward, so that the cushion rotates around the rear end and the front end of the cushion is raised or lowered. When the rear motor works, the cushion and the waist support are raised or lowered as a whole, so that the height of the cushion is adjusted. In this way, the adjustment effect is not good. When the passenger sits on the cushion, the most comfortable state is that the cushion abuts against the thighs of the passenger, and the front end of the cushion is close to the shins, and the shins are as close as possible to the front side of the cushion, so that the comfort of the passenger is best. However, the existing double-motor (front motor and rear motor) adjustment mode of the height of the cushion cannot guarantee the adhesion of the cushion and the legs, and it is difficult to guarantee the best comfort. Therefore, how to improve the comfort of the passenger is the direction that the person skilled in the art needs to strive for. SUMMARY

[0004] The utility model aims at providing a cushion assembly and an automobile seat. By using the structure, the comfort of the passenger is improved, and the adjustment of the cushion assembly is facilitated.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a cushion assembly. The bottom of the cushion assembly is slidably arranged on a cushion slide rail. The cushion assembly comprises a cushion frame and a cushion slidably mounted on the cushion frame. A cushion part driving member is arranged on the cushion frame to drive the cushion frame to move along the cushion slide rail.

[0006] A cushion guide part is arranged on the cushion frame. The cushion guide part is inclined upward from back to front. The lower part of the cushion is slidably connected with the cushion guide part.

[0007] A cushion driving part is further arranged. The cushion driving part drives the cushion to move along the cushion guide part.

[0008] In the above-mentioned technical scheme, the cushion driving part comprises a cushion driving member, a cushion front side connecting member and a cushion rear side connecting member. The cushion driving member is mounted on the cushion frame.

[0009] The top of the seat cushion front side connecting piece and the seat cushion rear side connecting piece is mounted on the seat cushion bottom, the bottom of the seat cushion front side connecting piece is rotatably connected with the seat cushion frame on both sides, and the bottom of the seat cushion rear side connecting piece is rotatably connected with the seat cushion frame on both sides.

[0010] The seat cushion driving piece is mounted on the seat cushion frame, and the seat cushion driving piece is configured to drive the seat cushion front side connecting piece or the seat cushion rear side connecting piece to rotate around the seat cushion frame and drive the seat cushion to move forward and backward along the seat cushion guide part.

[0011] In the above technical solution, the seat cushion guide part is arranged at the rear end of the seat cushion driving part, the seat cushion guide part is two, and the two seat cushion guide parts are symmetrically arranged at the rear end of the seat cushion frame, and the two ends of the rear side of the seat cushion bottom are respectively slidably connected with the two groups of seat cushion guide parts.

[0012] In the above technical solution, the seat cushion front side connecting piece includes a front side connecting pipe and front side connecting sheets arranged at both ends of the front side connecting pipe, the front side connecting pipe is rotatably connected with the seat cushion, and the bottoms of the front side connecting sheets on both sides are rotatably connected with the front end of the seat cushion frame on both sides.

[0013] In the above technical solution, the seat cushion driving piece includes a seat cushion driving motor, a seat cushion driving screw rod and a seat cushion driving screw rod support, the seat cushion driving motor and the seat cushion driving screw rod support are mounted on the seat cushion frame, the middle part of the seat cushion driving screw rod is screwed with a seat cushion driving screw nut in the seat cushion driving screw rod support, and the seat cushion driving motor is configured to drive the seat cushion driving screw nut to rotate.

[0014] The bottom of the front side connecting pipe is provided with a front side connecting plate, and the front end of the seat cushion driving screw rod is rotatably connected with the front side connecting plate.

[0015] In the above technical solution, the front end of the seat cushion is also rotatably mounted with a foot support part, the top of the foot support part is rotatably connected with the front end of the seat cushion, the bottom of the seat cushion is mounted with a foot support driving part, the foot support driving part drives the foot support to rotate around the seat cushion, and the foot support part is unfolded or stored.

[0016] In the above technical solution, the bottom surface of the foot support part is provided with a foot support connecting shaft, and the foot support driving part is connected with the foot support connecting shaft through a transmission mechanism.

[0017] The transmission mechanism includes a transmission piece, the front end of the transmission piece is rotatably connected with the foot support connecting shaft, the driving end of the foot support driving part is connected with the transmission piece, and the extension and retraction of the driving end of the foot support driving part drives the foot support part to rotate around the seat cushion through the transmission piece and the foot support connecting shaft.

[0018] The transmission member is provided with a groove, the foot supporting connecting shaft is rotationally connected with the groove, and the foot supporting connecting shaft can move along the groove.

[0019] The limiting member is rotationally connected with the rear end of the bottom of the transmission member, the front end top of the limiting member is provided with a limiting groove, and the two ends of the tension spring are connected with the transmission member and the limiting member respectively.

[0020] The front end of the limiting member is provided with a front end protrusion extending upwards, the middle part of the top surface of the limiting member is provided with a middle protrusion, the limiting groove is formed above the limiting member between the front end protrusion and the middle protrusion, the tension spring drives the limiting member to rotate towards the first direction, and the limiting groove is abutted on the bottom outer surface of the foot supporting connecting shaft.

[0021] The utility model also provides a car seat, including above-mentioned cushion assembly, still include backrest subassembly, the bottom of backrest subassembly with the rear end of cushion assembly rotationally connected, or the bottom of backrest subassembly with crossbeam rotationally connected, and the crossbeam sets up in the rear side of cushion assembly.

[0022] Compared with the prior art, the utility model has the following advantages due to the above technical scheme:

[0023] 1. The utility model discloses a cushion guide part is arranged on the cushion frame, and the lower side of the cushion is slidably connected with the cushion guide part, and the cushion is driven to slide along the cushion guide part by the cushion driving part, so that the cushion is lifted and lowered, the cushion can be attached to the leg of the passenger, the comfort of the passenger is improved, the number of motors is reduced, and the cost is also reduced.

[0024] 2. The utility model discloses that the cushion front side connecting piece, cushion rear side connecting piece, cushion and cushion frame constitute parallelogram structure, and the cushion front side connecting piece, cushion rear side connecting piece are driven to rotate around the cushion frame by the cushion driving part, so as to drive the cushion to move along the cushion guide part, lift and lower the cushion, and ensure that the cushion is always attached to the leg of the passenger, and the comfort of the passenger is improved.

[0025] 3. The utility model discloses a foot support part is further rotatably installed at the front end of the cushion, and the foot support driving part drives the foot support part to rotate around the cushion, wherein the recess is arranged on the transmission part, the foot support connecting shaft rotates in the recess, and the foot support connecting shaft can move in the recess, and the limiting piece and the tension spring are further arranged, the limiting piece is rotated and makes the limiting groove of the limiting piece of the tension spring clamps the foot support connecting shaft through the tension spring, when the foot support connecting shaft is extruded the limiting piece and separates from the limiting groove and moves in the recess, the foot support connecting shaft moves along the recess and overturns towards the storage direction, and the transmission part and the foot support driving part are prevented from being damaged, and the service life of the foot support is effectively prolonged, and the maintenance rate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the structure schematic diagram of the cushion assembly in the utility model embodiment one (foot support part is not shown);

[0027] Figure 2 It is Figure 1 the sectional view;

[0028] Figure 3 It is the structure schematic diagram of the cushion assembly in the utility model embodiment one (foot support part is not shown, and the cushion part is not shown);

[0029] Figure 4 It is Figure 3 the structure schematic diagram of another view in (foot support driving part is not shown);

[0030] Figure 5 It is Figure 3 the structure schematic diagram of another view;

[0031] Figure 6 It is the structure schematic diagram of the cushion assembly in the utility model embodiment one (cushion slide rail is not shown);

[0032] Figure 7 It is Figure 6 the structure schematic diagram of bottom view in;

[0033] Figure 8 It is the structure schematic diagram of the foot support part installation place in the utility model embodiment one;

[0034] Figure 9 It is Figure 8 the sectional view;

[0035] Figure 10 It is Figure 8 the three-dimensional structure schematic diagram;

[0036] Figure 11is a structural schematic view of a foot support driving part and a transmission mechanism in the embodiment one of the utility model;

[0037] Figure 12 is Figure 11 is a structural schematic view of the transmission mechanism in the disassembled state;

[0038] Figure 13 is a structural schematic view of the automobile seat in the embodiment one of the utility model (in the state of installing two automobile seats).

[0039] 1, cushion assembly;11, cushion slide rail;12, cushion frame;13, cushion;120, cushion guide part;130, cushion connecting plate;140, cushion driving part;141, front side connecting piece of cushion;142, rear side connecting piece of cushion;1201, sliding block;1401, cushion driving motor;1402, cushion driving screw;1403, cushion driving screw support;1410, front side connecting pipe;1411, front side connecting piece;1412, front side connecting plate;

[0040] 2, backrest assembly;3, cross beam;4, foot support part;41, foot support driving part;42, foot support connecting shaft;43, transmission mechanism;44, connecting arm;410, foot support driving motor;411, foot support screw;412, foot support screw support;430, transmission part;431, limiting part;432, tension spring;440, connecting protrusion;441, left side arm;442, right side wall;443, middle connecting pipe;4301, groove;4310, limiting groove;4311, front end protrusion;4312, middle protrusion. DETAILED DESCRIPTION

[0041] The utility model will be further described in connection with the drawings and embodiments:

[0042] Embodiment one: refer to Figures 1-13 A cushion assembly, the cushion assembly 1 bottom is slidably arranged on the cushion slide rail 11, the cushion assembly 1 includes the cushion frame 12 and the cushion 13 slidably installed on the cushion frame 12;

[0043] The cushion frame 12 is provided with the cushion guide part 120, the cushion guide part 120 is arranged obliquely upwards from back to front, and the lower portion of the cushion 13 is slidably connected with the cushion guide part 120;

[0044] Further provided is a cushion driving part, the cushion driving part drives the cushion 13 to move along the cushion guide part.

[0045] In the embodiment, the seat cushion frame is provided with a seat cushion part driving member (not shown in the figure) for driving the seat cushion frame to move along the seat cushion slide rail. The seat cushion is installed on the seat cushion frame, and the seat cushion part driving member is installed on the seat cushion frame and can drive the seat cushion frame to move forward and backward along the seat cushion slide rail, thereby realizing the forward and backward movement of the seat cushion assembly. In the embodiment, the top surface of the seat cushion is inclined upward from back to front. When a passenger sits on the seat cushion, the thighs are attached to the top surface of the seat cushion, and the front side of the seat cushion is as close to the shank side as possible, and the top of the front side of the seat cushion is also as close to the knee as possible, thereby ensuring the comfort of the passenger. When the height of the seat cushion needs to be adjusted, the seat cushion driving part drives the seat cushion to move along the seat cushion guide part. Since the seat cushion guide part is inclined upward from back to front, when the seat cushion moves forward, the whole seat cushion also rises upward and is inclined upward. At this time, when the passenger sits on the seat cushion, the top of the seat cushion is attached to the thighs, and the front side of the seat cushion is as close to the knee as possible, so that the seat cushion and the legs of the passenger are well attached, the passenger is comfortable when sitting on the seat cushion, and the setting of one motor is reduced, thereby reducing the cost.

[0046] Referring to Figures 2-5 As shown in the figure, the seat cushion driving part includes a seat cushion driving member 140, a seat cushion front side connecting member 141, and a seat cushion rear side connecting member 142. The seat cushion driving member 410 is installed on the seat cushion frame 12.

[0047] The top of the seat cushion front side connecting member 141 and the seat cushion rear side connecting member 142 is installed on the seat cushion bottom. The bottom of the seat cushion front side connecting member 141 is rotatably connected to the seat cushion frame 13 on both sides, and the bottom of the seat cushion rear side connecting member 142 is rotatably connected to the seat cushion frame 13 on both sides.

[0048] The seat cushion driving member 140 is installed on the seat cushion frame 13. The seat cushion driving member 140 is configured to drive the seat cushion front side connecting member 141 or the seat cushion rear side connecting member 142 to rotate around the seat cushion frame 13 and drive the seat cushion 13 to move forward and backward along the seat cushion guide part 120.

[0049] In the embodiment, the seat cushion driving member is connected to the seat cushion front side connecting member. Since the bottom of the seat cushion front side connecting member and the bottom of the seat cushion rear side connecting member are rotatably connected to the seat cushion frame on both sides, when the seat cushion driving member gives a driving force to the seat cushion front side connecting member, the bottom of the seat cushion front side connecting member will rotate around the seat cushion frame, and the seat cushion rear side connecting member will also rotate around the seat cushion frame. When the bottom of the seat cushion front side connecting member and the seat cushion rear side connecting member rotate around the seat cushion frame, the top of the seat cushion front side connecting member and the seat cushion rear side connecting member will move toward the upper front or the lower back relative to the seat cushion frame, thereby driving the seat cushion to move forward and backward along the seat cushion guide part, realizing the forward and backward inclined sliding of the seat cushion, and making the seat cushion rise or drop.

[0050] Referring to Figure 3 As shown in the figure, the cushion guide part 120 is arranged at the rear end of the cushion driving part, and the cushion guide part 120 is two, which are symmetrically arranged at the rear end of the cushion frame 12, and the two ends of the rear side of the bottom of the cushion 13 are respectively connected with the two groups of the cushion guide part 120 in sliding mode, and the two ends of the rear side of the bottom of the cushion 13 are respectively connected with the two side cushion guide parts 120 in rotating mode.

[0051] In this embodiment, the cushion guide part can adopt guide rail or sliding groove, and in this embodiment, the cushion guide part is sliding groove, and the rear side of the bottom of the cushion is provided with a cushion connecting plate 130, and a sliding block 1201 is arranged in each cushion guide part 120 in sliding mode, and the two ends of the cushion connecting plate are respectively connected with the two side sliding blocks in rotating mode. In this structure, when the cushion driving part drives the front side connecting part and the rear side connecting part of the cushion to rotate around the cushion frame, the front end of the cushion will not only move towards the upper front or lower rear, but also the cushion will change some angles, therefore, the two ends of the cushion connecting plate are respectively connected with the sliding blocks in the two side cushion guide parts in rotating mode, which ensures that the cushion can slide obliquely forward and backward along the cushion guide part, and also ensures that the cushion can change small angle when the angle of the cushion changes, and ensures the normal rotation of the cushion. At the same time, the cushion, the cushion frame, the front side connecting part and the rear side connecting part of the cushion form a parallelogram structure, and the rear end of the cushion is connected with the cushion guide part, so that the position of the cushion will not change when the cushion bears a large weight (when the passenger sits on the cushion), and the stability and firmness of the cushion during use are ensured.

[0052] Referring to Figure 4 , 5 As shown in the figure, the front side connecting part 141 of the cushion includes a front side connecting pipe 1410 and a front side connecting plate 1411 arranged at the two ends of the front side connecting pipe 1410, respectively, and the front side connecting pipe 1410 is connected with the cushion 13 in rotating mode, and the bottoms of the two side front side connecting plates 1411 are respectively connected with the front ends of the two sides of the cushion frame 12 in rotating mode.

[0053] The top of the front connecting piece is fixedly connected with the front connecting pipe, and the cushion driving member is connected with the front connecting pipe, so that the front connecting pipe is pushed to rotate around the cushion frame through the front connecting piece, so as to drive the cushion to move forward and upward or backward and downward. In the embodiment, the rear connecting piece of the cushion includes two rear connecting pieces which are arranged at left and right sides and are spaced apart from each other, the top of the rear connecting piece is rotatably connected with the cushion, and the bottom of the rear connecting piece is rotatably connected with the cushion frame (or the rear connecting piece of the cushion includes a rear connecting pipe and two rear connecting pieces which are arranged at two ends of the rear connecting pipe and are rotatably connected with the cushion). In this way, when the front connecting piece of the cushion rotates around the cushion frame, the rear connecting piece also rotates around the cushion frame, so that the cushion is stably supported during rotation and movement.

[0054] Referring to FIG. 1, Figure 2 、 4 As shown in FIG. 1, the cushion driving member 140 includes a cushion driving motor 1401, a cushion driving screw rod 1402 and a cushion driving screw rod support 1403. The cushion driving motor 1401 and the cushion driving screw rod support 1403 are mounted on the cushion frame 12. The middle part of the cushion driving screw rod 1402 is screwed with a cushion driving screw nut in the interior of the cushion driving screw rod support 1403. The cushion driving motor 1401 is configured to drive the rotation of the cushion driving screw nut.

[0055] The bottom of the front connecting pipe 1410 is provided with a front connecting plate 1412. The front end of the cushion driving screw rod 1402 is rotatably connected with the front connecting plate 1412.

[0056] In the embodiment, the cushion driving screw rod support can be fixedly mounted on the cushion frame, and the cushion driving screw rod is arranged obliquely, and the movement track thereof is a straight line. When the front connecting piece of the cushion rotates, the front connecting pipe and the cushion are rotatably connected, so that the movement track of the front connecting plate can coincide with the movement track of the cushion driving screw rod. When the cushion driving motor drives the rotation of the cushion driving screw nut, the cushion driving screw nut drives the extension and retraction of the cushion driving screw rod. When the cushion driving screw rod extends and retracts, the front connecting plate moves forward and backward, and at the same time, the front connecting piece of the cushion is pushed to rotate around the cushion frame, and the front connecting pipe also rotates relative to the cushion, so that the connection between the front connecting plate and the cushion driving screw rod is always located on the movement track of the cushion driving screw rod. When the front end of the cushion driving screw rod extends (moves forward), the top of the front connecting piece and the rear connecting piece of the cushion rotates towards the front and upward, and drives the cushion to move obliquely forward and to be lifted. When the front end of the cushion driving screw rod retracts (moves backward), the top of the front connecting piece and the rear connecting piece of the cushion rotates towards the rear and downward, and drives the cushion to move obliquely backward and to be lowered.

[0057] Referring to FIG. 1, Figures 6-12As shown, the front end of the seat cushion 13 is also rotatably installed with a foot support part 4, the top of the foot support part 4 is rotatably connected with the front end of the seat cushion 13; a foot support driving part 41 is arranged below the seat cushion, the foot support driving part 41 drives the foot support part 4 to rotate around the seat cushion, and makes the foot support part 4 to unfold or be stored,

[0058] The bottom surface of the foot support part 4 is provided with a foot support connecting shaft 42, the foot support driving part 41 is connected with the foot support connecting shaft 42 through a transmission mechanism 43;

[0059] As shown in the figure, Figures 8-12 As shown, the transmission mechanism 43 includes a transmission part 430, the front end of the transmission part 430 is rotatably connected with the foot support connecting shaft 42, the driving end of the foot support driving part 41 is connected with the transmission part 430, the extension and retraction of the driving end of the foot support driving part 41 drives the foot support part to rotate around the seat cushion through the transmission part and the foot support connecting shaft. In this way, when the foot support driving part pushes the transmission part to move, it can drive the foot support part to rotate around the seat cushion.

[0060] Further, in this structure, there is a deficiency: if the foot support part is unfolded (in the unfolded state, the foot support part is basically parallel to the top surface of the seat cushion, used for supporting the lower leg and foot of the passenger, in the storage state, the foot support part is basically perpendicular to the top surface of the seat cushion, the bottom of the foot support part is close to or in contact with the front end of the seat cushion), the top of the foot support part is subjected to excessive trampling force, for example, an adult directly steps on it (the whole body weight is on the foot support part), or a child jumps on it, which is easy to cause damage to the connection between the foot support part and the seat cushion, the connection between the transmission part and the foot support driving part.

[0061] Therefore, in the embodiment, referring to Figures 8-12 As shown, a recess 4301 is arranged on the transmission part 430, the foot support connecting shaft 42 is rotatably arranged in the recess 4301, and the foot support connecting shaft 42 can move along the recess 4301.

[0062] Further, a limiting part 431 and a tension spring 432 are arranged, the middle part of the limiting part 431 is rotatably connected with the rear end of the bottom of the transmission part 430, the front top of the limiting part 431 is provided with a limiting groove 4310, the two ends of the tension spring 432 are respectively connected with the transmission part 430 and the limiting part 431, the tension spring 432 drives the limiting part 431 to rotate towards the first direction, and makes the limiting groove 4310 abut against the bottom outer surface of the foot support connecting shaft 42, and the limiting groove 4310 drives the top of the foot support connecting shaft 42 to abut against the top surface of the recess 4301.

[0063] In the embodiment, the extension and retraction of the driving end of the foot support driving part drives the foot support part to rotate around the cushion through the transmission member and the foot support connecting shaft. The retraction of the driving end of the foot support driving part drives the rearward movement of the transmission member, and at the same time drives the foot support part to rotate around the cushion in one direction, drives the bottom of the foot support part to rotate towards the front end of the cushion, and makes the front end of the foot support part close to the cushion, until the front end of the foot support part is close to the front side of the cushion, or contacts the front side of the cushion, to realize the storage of the foot support part. When the foot support part needs to be unfolded, the driving end of the foot support driving part is extended to push the transmission member to move forward. When the transmission member moves forward, it will push the foot support part to rotate around the cushion in the other direction, drive the bottom of the foot support part to rotate towards the direction away from the front end of the cushion, and make the front end of the foot support part away from the cushion, so that the foot support part is rotated to be substantially parallel to the top surface of the cushion, thereby realizing the unfolding of the foot support part.

[0064] In the embodiment, due to the existence of the limiting member and the tension spring, the tension spring pulls the limiting member to rotate towards the first direction, for example, the first direction is the clockwise direction, so that the limiting groove is abutted against the bottom outer surface of the foot support connecting shaft, and gives the foot support connecting shaft an upward pushing force, so that the top outer surface of the foot support connecting shaft is abutted against the top surface of the groove. Since the rotating connection position of the limiting member and the transmission member to the groove does not change, in the embodiment, when the bottom outer surface of the limiting groove and the foot support connecting shaft are in contact, and the top outer surface of the foot support connecting shaft is pushed by the limiting member to abut against the top surface of the groove, at this time, the foot support connecting shaft is at the front end of the groove, during the process that the foot support driving part drives the transmission member to move forward and drives the foot support to expand, the clamping force of the limiting member and the transmission member to the foot support connecting shaft is greater than the pushing force of the foot support connecting shaft to the limiting groove, therefore, when the transmission member moves forward, the limiting member and the transmission member synchronously push the foot support connecting shaft to move and drive the foot support part to rotate and expand. At this time, the foot support part can bear a certain weight, when the foot support part in the expanded state is subjected to a large external force (a direct and complete stepping force, which may cause damage to the foot support driving part, the transmission member or the connection part), in the conventional state, the foot support driving part, the transmission member or the connection part between the two is damaged, but in the embodiment, when the foot support part in the expanded state is subjected to a large external force, the external force is transmitted to the foot support connecting shaft, since the top of the foot support part (the rear side of the foot support part in the expanded state) is rotationally connected to the front end of the cushion, the foot support connecting shaft is below the connection part between the foot support part and the cushion (the foot support connecting shaft is in front of the connection part between the foot support part and the cushion in the expanded state), the foot support connecting shaft has a downward pushing force towards the rear, which can press the limiting groove, due to the existence of the tension spring, the limiting member is pushed to rotate towards the second direction, the tension spring is further stretched, until the foot support connecting shaft moves rearward to separate from the limiting groove, and moves along the groove rearward, during the process, the foot support part rotates towards the storage direction, so that the foot support part is inclined, therefore, the external force cannot directly press on the foot support part, so as to prevent the foot support part, the transmission member and the foot support driving part from being damaged. When the foot support part needs to be reset (restored to the original state), the bottom of the foot support part is turned upwards towards the front, so that the foot support connecting shaft moves forward along the groove (after the foot support connecting shaft separates from the limiting groove, the tension spring further pulls the foot support connecting shaft to rotate towards the first direction, so that the front end of the limiting member is at the front end of the foot support connecting shaft), the foot support connecting shaft collides with the limiting member and presses the limiting member, so that the limiting member rotates towards the second direction (the rotating direction of the second direction is opposite to that of the first direction), until the foot support connecting shaft rotates to the limiting groove, the limiting groove of the limiting member is clamped into the bottom of the foot support connecting shaft, the limiting of the foot support connecting shaft is realized, and the reset of the foot support part is realized. In this structure, the damage of the foot support part can be effectively prevented, the maintenance rate is reduced, and the service life is prolonged.

[0065] In the embodiment, the foot support driving part is arranged beside the cushion driving member.

[0066] Referring to Figure 9 ,12 As shown, the front end of the limiting member 431 has an upwardly extending front protrusion 4311, and the middle part of the top surface of the limiting member 431 has a central protrusion 4312. The limiting groove 4310 is formed above the limiting member 431 between the front protrusion 4311 and the central protrusion 4312. The tension spring 432 pulls the limiting member 431 to rotate in the first direction, and the limiting groove 4310 abuts against the bottom outer surface of the foot support connecting shaft 42. The front and rear sides of the central protrusion are both arc-shaped surfaces, which facilitates the foot support connecting shaft to move backward through the central protrusion and disengage from the limiting groove, thereby preventing damage to the foot support due to force. It also facilitates the foot support connecting shaft to enter the limiting groove through the central protrusion, realizing the reset of the foot support and the transmission component.

[0067] See Figure 9 , 11 As shown in Figure 12, the front end of the limiting member 431 is located below the foot support connecting shaft 42. One end of the tension spring 432 is connected to the bottom front end of the transmission member 430, and the other end of the tension spring 432 is connected to the rear end of the limiting member 431. The tension spring 432 pulls the limiting member 431 to rotate in the first direction and causes the limiting groove 4310 to abut against the bottom outer surface of the foot support connecting shaft 42.

[0068] The middle part of the limiting component is rotatably connected to the transmission component. Its front end is used for limiting the foot support shaft, and its rear end is used for connecting the tension spring.

[0069] See Figure 9 , 10 As shown, the footrest 4 is provided with a connecting arm 44, and the two rear ends of the connecting arm 44 are respectively rotatably connected to the front end of the seat cushion 13.

[0070] The connecting arm 44 has a connecting protrusion 440 in the middle, and the foot support shaft 42 is located at the rear end of the connecting protrusion 440.

[0071] In this embodiment, the connecting arm 44 has an "I"-shaped structure, including a left arm 441, a right side wall 442, and a middle connecting tube 443. The two ends of the middle connecting tube are connected to the middle of the left and right arms, respectively. The front ends of the left and right arms are connected to the footrest, respectively. The rear ends of the left and right arms are rotatably connected to the front sides of the seat cushion. The front end of the connecting protrusion is perpendicularly connected to the middle of the middle connecting tube. In this embodiment, the transmission component has a downward-opening U-shaped structure with two grooves located on the side walls of the transmission component on both sides of the opening. The two ends of the footrest connecting shaft are located within the two grooves. The front end of the limiting component is located within the opening, and the rear end of the limiting component is located outside the rear side of the transmission component. The rear end of the tension spring is also located below the transmission component.

[0072] See Figures 8-12As shown, the foot support driving part 41 comprises a foot support driving motor 410, a foot support screw rod 411 and a foot support screw rod support 412, the foot support screw rod support 412 and the foot support driving motor 410 are installed on the cushion bottom surface 13, and the foot support screw rod support 412 is fixedly connected or rotatably connected with the cushion 13, the foot support screw rod 411 is screwed with a foot support screw rod nut inside the foot support screw rod support 412, the foot support driving motor 410 is configured to drive the foot support screw rod nut to rotate, and the front end of the foot support screw rod 412 is connected with the transmission part 430.

[0073] In the embodiment, the foot support screw rod is screwed with the foot support screw rod nut inside the foot support screw rod support (the foot support screw rod nut is rotatably installed inside the foot support screw rod support), when the foot support driving motor drives the foot support screw rod nut to rotate, the foot support screw rod nut will synchronously drive the foot support screw rod to move forward and backward, thereby pushing the transmission part to move forward and backward, and further driving the foot support part to rotate, so as to realize the unfolding and storage of the foot support part.

[0074] The length of the groove is greater than the diameter of the foot support connecting shaft, and the width of the groove is greater than or equal to the diameter of the foot support connecting shaft.

[0075] Referring to Figure 13 As shown, the utility model also provides an automobile seat, including above-mentioned cushion assembly 1, still include backrest assembly 2, the bottom of backrest assembly 2 with the rear end of cushion assembly 1 rotatable connection, or the bottom of backrest assembly 2 with crossbeam 3 rotatable connection, crossbeam 3 set up in the rear side of cushion assembly 1.

[0076] In the utility model, the bottom of the backrest assembly can be directly rotatably connected with the rear end of the cushion assembly, so that the backrest assembly and the cushion assembly form an integral whole, of course, the backrest assembly can also be in a split structure with the cushion assembly, so that the bottom of the backrest assembly is rotatably connected with the crossbeam.

[0077] In the description of the utility model, need understanding is, the term "upper", "lower", "top", "bottom", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only is for the convenience of describing the present application and simplifying the description, and is not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore cannot be understood as the limitation to the present application. In the description of the utility model, the meaning of "a plurality of" is two or more than two, unless there is a clear specific limitation.

[0078] In the utility model, unless there is a clear provision and limitation, the term "installation", "connection", "connection", "fix" and so on should be broad understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, for example, two through abutment, contact and so on form mechanical abutment or contact connection mode, two also can be directly hung or through intermediate medium hang up and connect and so on, also can be two element internal communication or two element interaction relation. For the ordinary skilled person in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific situation.

Claims

1. A seat cushion assembly, the seat cushion assembly being slidably disposed on a seat cushion rail, characterized by: The seat cushion assembly comprises a seat cushion frame and a seat cushion slidingly installed on the seat cushion frame; The seat cushion frame is provided with a seat cushion guide part, which is inclined upward from back to front, and the lower part of the seat cushion is slidingly connected with the seat cushion guide part; A seat cushion driving part is further provided, which drives the seat cushion to move along the seat cushion guide part.

2. The seat cushion assembly of claim 1, wherein: The seat cushion driving part comprises a seat cushion driving member, a seat cushion front side connecting member and a seat cushion rear side connecting member, and the seat cushion driving member is installed on the seat cushion frame; The top part of the seat cushion front side connecting member and the seat cushion rear side connecting member is installed on the bottom part of the seat cushion, and the bottom part of the seat cushion front side connecting member is rotatably connected with the seat cushion frame on both sides, and the bottom part of the seat cushion rear side connecting member is rotatably connected with the seat cushion frame on both sides; The seat cushion driving member is installed on the seat cushion frame, and the seat cushion driving member is configured to drive the seat cushion front side connecting member or the seat cushion rear side connecting member to rotate around the seat cushion frame, and drive the seat cushion to move back and forth along the seat cushion guide part.

3. The seat cushion assembly of claim 1, wherein: The seat cushion guide part is provided at the rear end of the seat cushion driving part, and the seat cushion guide part comprises two parts, which are symmetrically provided at the rear end of the seat cushion frame, and the two ends of the rear side of the seat cushion bottom part are slidingly connected with the two groups of seat cushion guide parts.

4. The seat cushion assembly of claim 2, wherein: The seat cushion front side connecting member comprises a front side connecting pipe and front side connecting plates provided at both ends of the front side connecting pipe, and the front side connecting pipe is rotatably connected with the seat cushion, and the bottom part of the front side connecting plates on both sides is rotatably connected with the front end of the seat cushion frame on both sides.

5. The seat cushion assembly of claim 4, wherein: The seat cushion driving member comprises a seat cushion driving motor, a seat cushion driving screw rod and a seat cushion driving screw rod support, the seat cushion driving motor and the seat cushion driving screw rod support are installed on the seat cushion frame, the middle part of the seat cushion driving screw rod is screwed with a seat cushion driving screw nut inside the seat cushion driving screw rod support, and the seat cushion driving motor is configured to drive the seat cushion driving screw nut to rotate; The bottom part of the front side connecting pipe is provided with a front side connecting plate, and the front end of the seat cushion driving screw rod is rotatably connected with the front side connecting plate.

6. The seat cushion assembly of claim 1, wherein: The front end of the seat cushion is further rotatably provided with a foot support part, the top part of the foot support part is rotatably connected with the front end of the seat cushion, and the bottom part of the seat cushion is provided with a foot support driving part, which drives the foot support to rotate around the seat cushion and makes the foot support part to be unfolded or stored.

7. The seat assembly of claim 6, wherein: The bottom surface of the foot support part is provided with a foot support connecting shaft, and the foot support driving part is connected with the foot support connecting shaft through a transmission mechanism; The transmission mechanism comprises a transmission member, the front end of the transmission member is rotatably connected with the foot support connecting shaft, the driving end of the foot support driving part is connected with the transmission member, and the extension and retraction of the driving end of the foot support driving part drives the foot support part to rotate around the seat cushion through the transmission member and the foot support connecting shaft.

8. The seat assembly of claim 7, wherein: The transmission member is provided with a groove, the foot support connecting shaft is rotatably connected with the groove, and the foot support connecting shaft can move along the groove. Further comprising a limiting member and a tension spring, the middle part of the limiting member is rotatably connected with the rear end of the bottom of the transmission member, the front end top of the limiting member is provided with a limiting slot, the two ends of the tension spring are respectively connected with the transmission member and the limiting member, the tension spring pulls the limiting member to rotate towards the first direction, and the limiting slot is abutted on the bottom outer surface of the foot support connecting shaft.

9. The seat cushion assembly of claim 8, wherein: The front end of the limiting member is provided with a front end protrusion extending upwards, the middle part of the top surface of the limiting member is provided with a middle part protrusion, the limiting member above the front end protrusion and the middle part protrusion constitutes the limiting slot, the tension spring pulls the limiting member to rotate towards the first direction, and the limiting slot is abutted on the bottom outer surface of the foot support connecting shaft.

10. An automotive seat characterized by: The seat cushion assembly comprises a backrest assembly, the bottom of the backrest assembly is rotatably connected with the rear end of the seat cushion assembly, or the bottom of the backrest assembly is rotatably connected with a cross beam, and the cross beam is arranged on the rear side of the seat cushion assembly.

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