CN103085687A - Lifter for adjusting height of seat - Google Patents

Abstract

The invention relates to a lifter for adjusting the height of a seat, which is provided with a clutch device and a transmission device in parallel, wherein the clutch device is provided with a first seat body, the surface of the first seat body is convexly provided with a plurality of transmission columns, a rotating sheet is arranged in the first seat body, two pushing parts transversely extend from two sides of the periphery of the rotating sheet, meshing parts are respectively arranged at two sides of each pushing part, the transmission device is provided with a second seat body, a transmission shaft and a cam sleeved on the transmission shaft are arranged in the second seat body in a penetrating way, a plurality of braking parts are arranged between the periphery of the cam and the inner wall of the second seat body, so that a user can rotate the rotating sheet to enable the cam to output rotating force, and further the height of an automobile seat is controlled in a stepless way, and the seat is finely adjusted to the state which is.

Description

Lifter for seat height adjustment

technical field

The invention relates to a lifter for seat height adjustment, in particular to a seat lifter which uses a mechanical transmission mode to allow users to control the height of a car seat steplessly.

Background technique

At present, the seat of the vehicle must be adjusted according to the height and body shape of different drivers. The adjustment structure of the traditional vehicle seat is a manual multi-stage adjustment structure. The disadvantage is that the adjustment distance is fixed, and the user must adjust it. It is adjusted in a more laborious way, but it is often impossible to adjust to the most suitable state for driving operation. Therefore, some related companies have developed a mechanism that uses electric control, which mainly relies on the motor to cooperate with the mechanical linkage structure. The height of the car seat can be controlled in a conventional way to fine-tune the seat to the most suitable state for driving and operation according to the height and shape of the driver. However, the use of the motor will occupy the space inside the vehicle, and will cause difficulties in the wiring of the vehicle and inconvenient maintenance in the future. And the cost of the overall setup is very expensive.

Therefore, how to solve the deficiencies and deficiencies of the above-mentioned prior art is an urgent research and development topic for those engaged in this industry.

Contents of the invention

The main purpose of the present invention is to use the mechanical transmission method to allow the user to control the height of the car seat steplessly, so as to fine-tune the seat to the most suitable state for driving operation in accordance with the driver's height and body shape.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A lifter for seat height adjustment, characterized in that the seat lifter is provided with a clutch device and a transmission device side by side, wherein:

The clutch device is provided with a first base body, the surface of the first base body is protrudingly provided with a plurality of transmission columns, a rotating piece is arranged in the first base body, and a plurality of pushing parts are arranged on the periphery of the rotating piece, and each pushing part side surface has two two connected and relatively inclined pushing surfaces, so that each pushing surface forms a tapered gap with the inner wall of the first seat, and an engaging piece is arranged between each pushing surface and the inner wall of the first seat;

The transmission device is provided with a second seat body, the second seat body is located on the side of the first seat body close to the transmission column, and a transmission shaft is pierced in the second seat body, and one end of the transmission shaft passes through the direction away from the first seat body. The second seat body, and the second seat body is provided with a cam, and the cam sleeve is set on the transmission shaft, and the cam periphery is protruded with a plurality of rotating parts, and the ends of the plurality of transmission columns arranged on the surface of the first seat body are respectively located on each rotating shaft. The two sides of the moving part, and the cam periphery is protrudingly provided with abutment parts between two adjacent rotating parts, and a brake piece is arranged between each abutment part and the inner wall of the second seat body, and the side of the brake piece The side has a slot, and the slot is facing the resisting portion.

A pivot joint protrudes from the center of the first seat, and a pivot hole is provided at the center of the surface of the rotating piece, and the pivot hole is sleeved on the outer edge of the pivot joint.

An elastic element is arranged between the two engaging pieces at the two connecting pushing surfaces, and the two ends of the elastic element respectively bear against the engaging pieces.

The first base body is pivotally connected with an outer cover and a push piece on a side away from the transmission device, and a driving part is bent and extended on both sides of the rotating piece, and the driving part extends to expose the outer cover.

The outer edge of the second seat is provided with two limiting grooves, and the outer edge of the second seat is covered with a return element with elastic deformation capability, the return element is extended with two push parts, and one side of the push piece is extended with a push part , and the pushing part is located on both sides of the pushing part after passing through the limiting groove.

The surface of the same side of the rotating piece and the driving part is protrudingly provided with a plurality of pushing columns, and the periphery of the pushing piece is bent and extended with a plurality of pushing pieces, and the ends of the pushing pieces are respectively located outside the two adjacent engaging parts, and the pushing piece The surface is provided with a transmission hole, and the inner diameter of the transmission hole is larger than the outer diameter of the push column, and the push column is located in the transmission hole.

A rack is provided on the outer edge of the side end of the transmission shaft located in the second seat, and an internal gear meshed with the rack is provided at the center of the cam.

An elastic element is arranged between the two brake parts.

Compared with the prior art, the present invention has the beneficial effect that: the user can drive the rotating piece back and forth, and then adjust the seat cushion, and there will be no gap during the adjustment, so that the user can adjust the seat cushion to The most appropriate position, moreover, because the present invention is mechanical transmission, does not need the motor that prior art uses, besides can increase the space inside the vehicle, also can not cause the wiring difficulty of the vehicle and inconvenient maintenance in the future, and The cost of the overall setup is very low compared with the prior art.

Description of drawings

Fig. 1 is the perspective view of the present invention;

Fig. 2 is a three-dimensional appearance view of the first seat of the present invention;

Fig. 3 is a three-dimensional exploded view of the clutch device of the present invention;

Fig. 4 is an exploded perspective view of partial components of the present invention;

Fig. 5 is the schematic diagram of clutch device of the present invention;

Fig. 6 is the schematic diagram of transmission device of the present invention;

Fig. 7 is a schematic diagram of the action of the clutch device of the present invention;

Fig. 8 is the action schematic diagram (1) of transmission device of the present invention;

Fig. 9 is the action schematic diagram (2) of the transmission device of the present invention;

Fig. 10 is a schematic diagram of the action of the reset element of the present invention;

Fig. 11 is a schematic diagram of the action of the transmission device of the present invention when braking;

Fig. 12 is an enlarged view of part A of Fig. 11A.

Explanation of reference signs: 1-clutch device; 11-first base body; 111-transmission column; 112-pivot joint; 12-rotating plate; 121-pushing part; 122-pivot joint hole; 124-driving part; 125-pushing column; 13-engagement piece; 14-elastic element; 15-outer cover; 16-returning element; 161-push part; ; 173-transmission hole; 2-transmission device; 21-second seat body; 211-limiting groove; 22-transmission shaft; 221-rack; 23-cam; - rotating part; 24 - brake piece; 241 - missing groove; 25 - elastic element.

Detailed ways

Please refer to Fig. 1 to Fig. 6, it can be clearly seen from the figure that the present invention is provided with a clutch device 1 and a transmission device 2 side by side:

Wherein the clutch device 1 is provided with a first seat body 11, a rotating piece 12, a plurality of engaging parts 13, a plurality of elastic elements 14, an outer cover 15, a return element 16 and a push piece 17, and the surface of the first seat body 11 is protrudingly provided with A plurality of transmission columns 111, a pivot joint 112 protrudes from the center of the first seat body 11; a pivot joint hole 122 is provided at the center of the surface of the rotating piece 12, and the pivot joint hole 122 is sleeved outside the pivot joint 112 edge, so that the rotating piece 12 is pivotally installed in the first seat body 11, and the periphery of the rotating piece 12 is provided with a plurality of pushing parts 121, and the side surface of each pushing part 121 has two connected and relatively inclined pushing surfaces 123, so that each There is a tapered gap between the pushing surface 123 and the inner wall of the first seat body 11, and a drive part 124 is bent and extended on both sides of the rotating piece 12, and the surface of the same side of the rotating piece 12 and the driving part 124 is convexly arranged A plurality of pushing posts 125; the engaging parts 13 are respectively arranged between each pushing surface 123 and the inner wall of the first seat body 11; the elastic elements 14 are respectively arranged between the two engaging parts 13 at two connected pushing surfaces 123, Both ends of the elastic element 14 are held against the engagement member 13 respectively; the outer cover 15 and the push piece 17 are covered and pivotally connected to the other side of the first seat 11 away from the transmission device 2, so that the driving part 124 extends to expose the outer cover 15 , and one side of the pushing piece 17 is laterally extended with a pushing part 171, and the periphery of the pushing piece 17 is bent and extended with a plurality of pushing pieces 172, and the ends of the pushing piece 172 are respectively positioned outside two adjacent engaging pieces 13, and the pushing The surface of the sheet 172 is provided with a transmission hole 173, and the inner diameter of the transmission hole 173 is larger than the outer diameter of the push column 125, and the push column 125 is located in the transmission hole 173;

The transmission device 2 is provided with a second base body 21, a transmission shaft 22, a cam 23, a plurality of brake parts 24 and a plurality of elastic elements 25, the second base body 21 is located on the side of the first base body 11 close to the transmission column 111, and the second base body 21 Two limiting grooves 211 are provided on the outer edge of the second seat body 21, and the return element 16 is sleeved on the outer edge of the second seat body 21, and the pushing part 161 of the returning element 16 passes through the limiting groove 211 and is positioned on the push piece 17. Both sides of the contact portion 171; the transmission shaft 22 is installed in the second base body 21, and one end of the transmission shaft 22 passes through the second base body 21 in a direction away from the first base body 11, and the transmission shaft 22 is located on the second base body 21 The outer edge of the inner side end is provided with a rack 221; the center of the cam 23 is provided with an internal gear 232, and the internal gear 232 meshes with the rack 221 of the transmission shaft 22, so that the cam 23 is located in the second seat body 21 and set Located on the transmission shaft 22, the periphery of the cam 23 is provided with a plurality of rotating parts 233, and each rotating part 233 is respectively located between the two transmission columns 111, and the periphery of the cam 23 protrudes between two adjacent rotating parts 233. There are abutment parts 231; the plurality of brake parts 24 are respectively arranged between each abutment part 231 and the inner wall of the second seat body 21, each brake part 24 has a slot 241 on the side, and the slot 241 is opposite to the abutment The holding portion 231 ; the plurality of elastic elements 25 are respectively disposed between the two braking elements 24 , and the two ends of the elastic elements 25 are held against the braking elements 24 respectively.

Please refer to Fig. 1 to Fig. 3 and Fig. 5 and Fig. 7, when the user rotates the driving parts 124 on both sides of the rotary piece 12, the engaging member 13 will be pushed by the pushing surface 123 of the pushing part 121, Since the pushing surface 123 and the inner wall of the first seat body 11 are in a tapered gap, the engagement member 13 will rub against the pushing surface 123 and the inner wall of the first seat body 11 for positioning. The moving piece 12 is continuously rotated by the rotational force given by the user. Since the inner diameter of the transmission hole 173 is larger than the outer diameter of the pushing post 125, the pushing post 125 will not push until the rotating piece 12 rotates a certain distance. The transmission hole 173 makes the pusher piece 17 and the rotating piece 12 move together; please refer to Figure 1, Figure 4, Figure 6 and Figure 8, when the first base 11 rotates, its transmission column 111 will also follow At this time, the transmission column 111 will push the rotating part 233 of each brake piece 24 and the cam 23, and the elastic element 25 will push the brake piece 24 due to the elastic resistance force, so that the brake piece 24 and the cam 23 generate The rotating force in the same direction rotates in the second seat body 21, and since the cam 23 is set on the transmission shaft 22, the transmission shaft 22 will also be driven by the cam 23 to rotate, and the transmission shaft can be used to 22 is connected with the seat cushion of the seat, and then the seat cushion is adjusted; please refer to Fig. 9 and shown in Fig. 10, when the user rotates the driving parts 124 on both sides of the rotating piece 12, the pushing part of the pushing piece 17 171 will push one of the two moving parts 161, and the other moving part 161 is restricted by the limiting groove 211 and cannot be displaced, so that the return element 16 is elastically deformed and has the ability to reset, and when the user stops applying force on the When rotating the piece 12, the return element 16 will bring the driving part 124 and the pushing piece 17 back to the original position. Since the rotating piece 12 is not pushed by external force at this time, the pushing piece 17 will be pushed by means of the pushing piece 172 first. Engagement piece 13, so that engagement piece 13 releases frictional positioning with push surface 123 and the inner wall of first base body 11, makes rotating piece 12 into a free pivoting state, and utilizes transmission hole 173 of push piece 17 to push push column 125 , so that the rotating piece 12 returns to its original position.

Please refer to Fig. 11 and shown in Fig. 12, it can be clearly seen from the figure that when the user does not use the present invention, the seat cushion will cause the transmission shaft 22 to be subjected to a rotational force, and then the rotational force will be transmitted To the cam 23, at this time, because the cam 23 is independently affected by this rotational force, and because the abutment portion 231 of the cam 23 is facing the slot 241 of the brake member 24, the abutment portion 231 pushes the slot 241, so that Braking part 24 produces rotation, makes braking part 24 and second seat body 21 inner wall and cam 23 outer edge produce frictional positioning, and cam 23 can't be rotated, and then the seat cushion of seat can not produce displacement.

By virtue of the above actions, the user can drive the rotating piece 12 back and forth, and then adjust the seat cushion, and there will be no gap during adjustment, so that the user can adjust the seat cushion to the most appropriate position. The invention is a mechanical transmission, which does not require the motor used in the prior art. In addition to increasing the space inside the vehicle, it will not cause difficulties in the wiring of the vehicle and inconvenience in future maintenance. The cost of the overall installation is compared with the prior art. Very cheap.

Claims (8)

1. A lifter for seat height adjustment, characterized in that: the seat lifter is provided with a clutch device and a transmission device side by side, wherein: The clutch device is provided with a first base body, the surface of the first base body is protrudingly provided with a plurality of transmission columns, a rotating piece is arranged in the first base body, and a plurality of pushing parts are arranged on the periphery of the rotating piece, and each pushing part side surface has two two connected and relatively inclined pushing surfaces, so that each pushing surface forms a tapered gap with the inner wall of the first seat, and an engaging piece is arranged between each pushing surface and the inner wall of the first seat; The transmission device is provided with a second seat body, the second seat body is located on the side of the first seat body close to the transmission column, and a transmission shaft is pierced in the second seat body, and one end of the transmission shaft passes through the direction away from the first seat body. The second seat body, and the second seat body is provided with a cam, and the cam sleeve is set on the transmission shaft, and the cam periphery is protruded with a plurality of rotating parts, and the ends of the plurality of transmission columns arranged on the surface of the first seat body are respectively located on each rotating shaft. The two sides of the moving part, and the cam periphery is protrudingly provided with abutment parts between two adjacent rotating parts, and a brake piece is arranged between each abutment part and the inner wall of the second seat body, and the side of the brake piece The side has a slot, and the slot is facing the resisting portion. 2. The lifter for seat height adjustment according to claim 1, characterized in that: a pivot joint protrudes from the center of the first seat body, and a pivot joint hole is provided at the center of the surface of the rotating piece, and The pivot hole is sleeved on the outer edge of the pivot portion. 3. The lifter for seat height adjustment according to claim 1, characterized in that: an elastic element is arranged between the two engaging parts at the two connecting push surfaces, and the two ends of the elastic element are held against the engaging parts respectively. pieces. 4. The lifter for seat height adjustment according to claim 1, characterized in that: the first seat body is pivotally connected with an outer cover and a push piece on the side away from the transmission device, and the two sides of the rotating piece are bent A driving part is extended, and the driving part is extended to expose the outer cover. 5. The lifter for seat height adjustment according to claim 1 or 4, characterized in that: the outer edge of the second seat is provided with two limiting grooves, and the outer edge of the second seat is provided with elastic deformability The return element is extended with two pushing parts, and one side of the push piece is extended with a pushing part, and the pushing part is located on both sides of the pushing part after passing through the limiting groove. 6. The lifter for seat height adjustment according to claim 1 or 4, characterized in that: the surface of the same side of the rotating piece and the driving part is protrudingly provided with a plurality of pushing columns, and the periphery of the pushing piece is bent and extended to have a plurality of The push piece is arranged so that the ends of the push piece are respectively located outside two adjacent engaging parts, and the surface of the push piece is provided with a transmission hole, and the inner diameter of the transmission hole is larger than the outer diameter of the push post, and the push post is located in the drive hole. 7. The lifter for seat height adjustment according to claim 1, characterized in that: the outer edge of the side end of the transmission shaft located in the second seat body is provided with a rack, and the center of the cam is provided with a gear meshing with the rack. internal gear. 8. The lifter for seat height adjustment according to claim 1, characterized in that: an elastic element is arranged between the two braking parts.

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