CN218141203U

CN218141203U - Pedal turnover mechanism for seat

Info

Publication number: CN218141203U
Application number: CN202222308269.9U
Authority: CN
Inventors: 石章能; 张明; 陈志勇
Original assignee: Chongqing Adient Automotive Components Co Ltd
Current assignee: Chongqing Adient Automotive Components Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-27
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a pedal turnover mechanism for a seat, which comprises a seat framework, wherein the front part of the seat framework is connected with a connecting rod group, the connecting rod group and the seat framework form a four-bar mechanism, any connecting rod hinged with the seat framework in the connecting rod group is connected with an angle adjusting mechanism, and the connecting rod group is also connected with a pedal bracket; the angle adjusting mechanism is used for controlling the corresponding connecting rod to rotate in the vertical plane and driving the pedal support to move back and forth and rotate relative to the seat framework. The beneficial effects of the utility model are that: the adjusting structure is flexible, the four-bar mechanism adjusts the angle and the position of the pedal support relative to the seat framework in a large range through the composite motion formed by rotation and movement, and the adjustability and the comfort of the seat are improved; simultaneously when pedal support is in the recovery position, pedal support is close to the seat skeleton, has reduced the space occupation when accomodating.

Description

Pedal turnover mechanism for seat

Technical Field

The utility model relates to a seat technical field, concretely relates to pedal tilting mechanism of seat.

Background

The comfort of the vehicle seat is related to the comfort of the occupant. To improve seat comfort, some vehicle seats meet the varied seating needs of different occupants by providing rich support and adjustment structures. For example, a common seat is generally provided with only functions such as backrest angle adjustment and seat position front-rear adjustment, and in some high-end seats, adjustable seat leg rests and pedals are important means for improving the riding comfort of passengers. For the seat with high requirement on comfort index, on one hand, the pedal structure must be suitable for the application requirements of passengers with different heights and body types, and on the other hand, due to the large-angle adjustment of the pedal, the support, the driving mechanism and the like of the pedal structure have the possibility of mutual influence with other parts of the seat. Thus, in a confined space, both the adjustability of the footrest structure and the occupation of the space in the vehicle must be taken into account.

Patent document 201501321U discloses a seat, wherein a seat disc is connected with a backrest through an elevation device, the seat disc is further connected with a leg support and a pedal, the leg support is divided into two sections, a first section of leg support and a second section of leg support are sequentially arranged, the first section of leg support is rotatably connected with a base, the second section of leg support is arranged on the first section of leg support in a sliding mode, the pedal is rotatably connected with the second section of leg support, and a rotating shaft of the pedal is installed at the end portion of the second section of leg support. The seat adapts to the riding states of passengers with different shapes through the extension and contraction of the leg supports, and meanwhile, the foot pedals are unfolded and stored in a rotating mode and can be folded and closed to be close to the first section of leg support along with the second leg support. However, the angle between the foot plate and the leg support cannot be adjusted, and the passengers must step on the foot plate with the heels and cannot adapt to the change of the radian of the rear side of the lower legs of the human bodies. On the other hand, the second section of leg support is accommodated into the first section of leg support, and the volume of the first section of leg support is larger. In order to meet the different requirements of different passengers on comfortable postures and simultaneously reduce the occupied space during storage, the supporting structure of the seat pedal needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a pedal tilting mechanism of seat.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

a pedal turnover mechanism for a seat comprises a seat framework and is characterized in that the front part of the seat framework is connected with a connecting rod group, the connecting rod group and the seat framework form a four-bar mechanism, any connecting rod hinged with the seat framework in the connecting rod group is connected with an angle adjusting mechanism, and the connecting rod group is also connected with a pedal support;

the angle adjusting mechanism is used for controlling the corresponding connecting rod to rotate in the vertical plane and driving the pedal support to move back and forth and rotate relative to the seat framework.

Design more than adopting, it is comparatively nimble to adjust the structure, and four-bar linkage adjusts pedal support for the angle and the position of seat skeleton through the combined motion that rotates and remove the formation in great range, and when pedal support was in the recovery position, pedal support was close to the seat skeleton simultaneously, had reduced the space occupy-place when accomodating.

Preferably, the four-bar linkage is a parallelogram linkage, and a connecting rod of the four-bar linkage opposite to the seat frame is fixedly connected with the pedal bracket.

Preferably, the pedal bracket is integrally formed in a flat surface type, and the pedal bracket is connected to the front end of the corresponding connecting rod.

Preferably, the linkage comprises a first link, a second link and a third link, wherein the first link and the second link are arranged in parallel and are hinged between the seat frame and the third link;

the angle adjusting mechanism is arranged between the first connecting rod or the second connecting rod and the seat framework.

Preferably, the second connecting rod is arranged below the first connecting rod, and when the pedal bracket is unfolded forwards to a limit position, the second connecting rod abuts against the first connecting rod, so that a forwards extending limiting structure is formed;

when the pedal support retracts backwards to the limit position, the first connecting rod abuts against the hinge point of the second connecting rod and the seat framework, and therefore a retraction limiting structure is formed.

Preferably, the angle adjusting mechanism is a pedal recliner.

Preferably, the pedal bracket comprises support rods arranged oppositely at the left and the right, and a pedal plate is transversely connected between the two support rods;

the seat framework comprises a seat frame, the front part of the seat frame is rotatably connected with a leg support framework, and two sides of the front end of the leg support framework are respectively connected with the supporting rods on the same side through one connecting rod group.

The utility model has the advantages that: the adjusting structure is flexible, the four-bar mechanism adjusts the angle and the position of the pedal support relative to the seat framework in a large range through the composite motion formed by rotation and movement, and the adjustability and the comfort of the seat are improved; simultaneously when pedal support is in the recovery position, pedal support is close to the seat skeleton, has reduced the space occupation when accomodating.

Drawings

FIG. 1 is a schematic view of the pedal support of the present invention in the extended position;

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

FIG. 3 is a schematic view of the pedal bracket of the present invention in the storage position;

fig. 4 is a schematic view of another view angle of fig. 3.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1 and 2, a pedal turnover mechanism for a seat comprises a seat framework, wherein the front part of the seat framework is connected with a connecting rod group, the connecting rod group and the seat framework form a four-bar mechanism, any one connecting rod hinged with the seat framework in the connecting rod group is connected with an angle adjusting mechanism, and the connecting rod group is further connected with a pedal support 200. The angle adjusting mechanism is used for controlling the corresponding connecting rod to rotate in a vertical plane and driving the pedal bracket 200 to move back and forth and rotate relative to the seat framework. The four-bar linkage and the angle adjustment mechanism together constitute a pedal rotation mechanism 100.

By adopting the design, on one hand, the rotation position and the front-back movement position of the pedal support 200 can be controlled through the angle adjusting mechanism, on the other hand, the four-bar linkage mechanism is helpful for maintaining the stability of the pedal support 200, and when the pedal support 200 is adjusted in a larger angle range, the four-bar linkage mechanism can be folded, so that the whole pedal can occupy a small space after being retracted, and the whole pedal is compact.

Preferably, the four-bar linkage is a parallelogram linkage, and a connecting rod of the four-bar linkage opposite to the seat frame is fixedly connected with the pedal bracket 200. Thus, the pedal bracket 200 can be moved back and forth largely and is conveniently controlled.

Specifically, the linkage includes a first link 110, a second link 120 and a third link 130, wherein the first link 110 and the second link 120 are disposed in parallel and are hinged between the seat frame and the third link 130. The angle adjusting mechanism is arranged between the first connecting rod 110 or the second connecting rod 120 and the seat frame. The third link 130 is provided at a front end thereof with a pedal bracket 200.

The second connecting rod 120 is arranged below the first connecting rod 110, and when the pedal bracket 200 is unfolded forwards to the extreme position, the second connecting rod 120 abuts against the first connecting rod 110, so that a forward extending limiting structure is formed. When the pedal bracket 200 is retracted backwards to the limit position, the first connecting rod 110 abuts against the hinge point of the second connecting rod 120 and the seat frame, so that a retraction limiting structure is formed.

In a simple controllable structure, the angle adjustment mechanism is a pedal recliner 140. The first connecting rod 110 is connected with the seat frame through a pedal angle adjuster 140, the pedal angle adjuster 140 includes a first link plate 141, a second link plate 142 and a core 143 connecting the first link plate 141 and the second link plate 142, the first link plate 141 is fixedly connected with the seat frame, the second connecting rod 120 is hinged with the first link plate 141, and the second link plate 142 is formed by the first connecting rod 110. The step recliners 140 are concentric recliners.

For convenience of installation, the second connecting rod 120 and the third connecting rod 130 are located on the same side of the first link plate 141 as the second link plate 142. The second link 120 is arc-shaped, the second link 120 has an arc-shaped concave surface 121 corresponding to a portion of the second link 142 corresponding to the core 143, and the arc-shaped concave surface 121 and the second link 142 form the protrusion limiting structure. As shown in FIGS. 1 and 2, when the pedal bracket 200 is extended forward, the curved concave surface 121 abuts against the second yoke plate 142 to be restrained.

A limit notch 144 is formed in one side of the second link plate 142 facing the second link rod 120, and hinge shafts of the second link rod 120 and the first link plate 141 are matched with the limit notch 144 to form the retraction limit structure. As shown in fig. 3 and 4, when the pedal bracket 200 is retracted rearward, the stopper notch 144 abuts against the corresponding hinge shaft to be stopped.

The first connecting rod 110 includes a second link plate 142 and a connecting rod, one end of the second link plate 142, which is far away from the core 143, is connected with one end of the connecting rod through a bolt, and the other end of the connecting rod is hinged with the front end of the third connecting rod 130.

In one embodiment, the pedal bracket 200 includes left and right opposite supporting rods 210, and a pedal 220 is transversely connected between the two supporting rods 210. The seat frame includes a seat frame 400, and the footrest 200 may be directly coupled to a front portion of the seat frame 400.

In another embodiment, as shown in fig. 1 and 2, a leg rest framework 300 is rotatably connected to the front of the seat frame 400, and both sides of the front end of the leg rest framework 300 are respectively connected to the same side of the strut 210 through a linkage and a pedal angle adjuster 140. A synchronizing bar is connected between the core members 143 of the two pedal recliners 140 on both sides.

The supporting rod 210 is disposed along the extending direction of the third connecting rod 130, the rear end of the supporting rod 210 is fixedly connected with the third connecting rod 130, and the front end of the supporting rod 210 extends forwards. The pedal 220 is connected between the front ends of the struts 210.

The position of the pedal 220 of the chair pedal relative to the leg rest framework 300 can be adjusted within a certain range, so that the requirements of different passengers on comfortable postures can be better met.

When the seat is pedaled in the storage position, the pedal angle adjuster 140 drives the first connecting rod 110 to rotate backward, and at this time, the third connecting rod 130 rotates backward with the pedal bracket 200 and approaches the first connecting plate 141, so that the pedal bracket 200 is stored under the first connecting rod 110. As shown in fig. 3 and 4, in the storage position, the rotation mechanism 100 and the pedal bracket 200 are stored behind the leg rest frame 300 and below the seat pan of the seat frame 400.

When the rider uses the bicycle, the pedal angle adjuster 140 drives the first link 110 to rotate forward, and the pedal bracket 200 rotates forward and extends through the four-bar linkage. Since the pedal recliner 140 can be positioned at any angle, the extension angle and position of the pedal bracket 200 can be flexibly adjusted. When the foot rest 200 is fully deployed forward, the foot rest 220 of the foot rest 200 is higher than the extension line of the upper surface of the leg rest, thereby facilitating the occupant to step on the foot rest 220.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a pedal tilting mechanism of seat, includes seat skeleton, its characterized in that: the front part of the seat framework is connected with a connecting rod group, the connecting rod group and the seat framework form a four-bar mechanism, any connecting rod hinged with the seat framework in the connecting rod group is connected with an angle adjusting mechanism, and the connecting rod group is also connected with a pedal bracket (200);

the angle adjusting mechanism is used for controlling the corresponding connecting rods to rotate in a vertical plane and driving the pedal support (200) to move back and forth and rotate relative to the seat framework.

2. The seat footrest tilting mechanism of claim 1, wherein: the four-bar mechanism is a parallelogram mechanism, and a connecting rod in the four-bar mechanism, which is opposite to the seat framework, is fixedly connected with the pedal bracket (200).

3. The seat footrest overturning mechanism of claim 2, wherein: the whole pedal support (200) is planar, and the pedal support (200) is connected to the front end of the corresponding connecting rod.

4. The seat footrest tilting mechanism of claim 2, wherein: the linkage comprises a first connecting rod (110), a second connecting rod (120) and a third connecting rod (130), wherein the first connecting rod (110) and the second connecting rod (120) are arranged in parallel and are hinged between the seat framework and the third connecting rod (130);

the angle adjusting mechanism is arranged between the first connecting rod (110) or the second connecting rod (120) and the seat framework.

5. The seat footrest tilting mechanism of claim 4, wherein: the second connecting rod (120) is arranged below the first connecting rod (110), and when the pedal bracket (200) is unfolded forwards to a limit position, the second connecting rod (120) abuts against the first connecting rod (110), so that a forward extending limit structure is formed;

when the pedal support (200) is retracted backwards to the limit position, the first connecting rod (110) abuts against a hinge point of the second connecting rod (120) and the seat framework, so that a retraction limit structure is formed.

6. The seat reclining mechanism of any one of claims 1 to 4, wherein: the angle adjusting mechanism is a pedal angle adjuster (140).

7. The seat footrest overturning mechanism of claim 5, wherein: the pedal support (200) comprises support rods (210) which are oppositely arranged at the left and the right, and a pedal plate (220) is transversely connected between the two support rods (210);

the seat framework comprises a seat frame (400), the front part of the seat frame (400) is rotatably connected with a leg support framework (300), and two sides of the front end of the leg support framework (300) are respectively connected with the supporting rods (210) on the same side through one connecting rod group.