CN218127660U

CN218127660U - Rotary folding pedal for chair

Info

Publication number: CN218127660U
Application number: CN202222309713.9U
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 seat rotates foldable pedal, including the seat skeleton, the front portion of this seat skeleton is connected with slewing mechanism, and this slewing mechanism is including rotating support piece, should rotate support piece one end with the seat skeleton rotates to be connected, and the other end articulates there is pedal support, this pedal support with still be connected with link mechanism between the seat skeleton, link mechanism is used for rotating support piece drives when rotating forward pedal support is shown forward rotating support piece drives when rotating support piece rotates backward pedal support withdrawal and follow the lower direction it draws close to rotate support piece is folding, pedal support front portion is equipped with the slip extension mechanism. The beneficial effects of the utility model are that: the adjustable seat has the advantages that the adjustable seat is more flexible in adjusting structure, space occupation during storage is reduced, requirements of passengers with different shapes can be met, and adjustability and comfortableness of the seat are improved.

Description

Rotary folding pedal of chair

Technical Field

The utility model relates to a seat technical field, concretely relates to seat rotates foldable pedal.

Background

The comfort of the vehicle seat is related to the comfort of the occupant. To improve seat comfort, some vehicle seats meet the diverse 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, a seat disc is connected with a backrest through an elevation device, a leg support and a pedal plate are further connected to the seat disc, the leg support is divided into two sections, namely a first section leg support and a second section leg support, the first section leg support is rotatably connected with a base, the second section leg support is slidably arranged on the first section leg support, the pedal plate is rotatably connected with the second section leg support, and a rotating shaft of the pedal plate is installed at the end part of the second section 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 footrest and the leg rest cannot be adjusted, and the rider must step on the footrest with the heel portion and cannot adapt to the change in the curvature of the rear side of the human calf. 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. The existing footrest structure of the car seat is still to be improved in terms of comfort and compactness.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a seat rotates foldable pedal.

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

a rotary folding pedal of a seat comprises a seat framework and is characterized in that the front part of the seat framework is connected with a rotating mechanism, the rotating mechanism comprises a rotary supporting piece, one end of the rotary supporting piece is rotatably connected with the seat framework, the other end of the rotary supporting piece is hinged with a pedal support, a connecting rod mechanism is further connected between the pedal support and the seat framework and used for driving the pedal support to unfold forwards when the rotary supporting piece rotates forwards, and driving the pedal support to retract backwards and fold the rotary supporting piece from the lower direction when the rotary supporting piece rotates backwards;

the front part of the pedal bracket is provided with a sliding extension mechanism.

Design more nimble above adopting, the structure of adjusting has reduced the space occupy-place when accomodating simultaneously, and in addition, the angle of pedal support for the seat skeleton can be adjusted at great within range to the control turned angle, can adapt to the passenger needs of different figures again through setting up the slip extension mechanism, and these all improve the controllability and the travelling comfort of seat.

As a preferred technical scheme, the rotating support member is a first connecting rod, the rear end of the first connecting rod is rotatably connected with the seat framework, and the front end of the first connecting rod is hinged with the pedal bracket;

the rear end of the connecting rod mechanism is hinged with the seat framework, and the front end of the connecting rod mechanism is fixedly connected with the pedal bracket;

the link mechanism, the first connecting rod and the seat framework form a four-link mechanism.

Preferably, the four-bar linkage is a parallelogram linkage.

As a preferred technical scheme, the link mechanism comprises a second link and a third link which are hinged with each other, the rear end of the second link is hinged with the seat frame, the other end of the second link is hinged with one end of the third link, and the front end of the third link is fixedly connected with the pedal support.

As a preferred technical solution, the above-mentioned rotary support member is connected to the seat frame through a pedal angle adjuster, the pedal angle adjuster includes a first yoke plate, a second yoke plate and a core member connecting the first and second yoke plates, the first yoke plate is fixedly connected to the seat frame, and the second yoke plate is formed by the rotary support member.

As a preferred technical solution, the link mechanism and the second link plate are located on the same side of the first link plate;

the second connecting rod is arc-shaped and provided with an arc-shaped concave surface which is matched with the part, corresponding to the core piece, of the second connecting plate, and the arc-shaped concave surface and the second connecting plate form a forward extending limiting structure.

As a preferred technical scheme, one side of the second connecting plate, which faces the second connecting rod, is provided with a limiting notch, and the second connecting rod and a hinge shaft of the seat framework are matched with the limiting notch to form a retraction limiting structure.

As a preferred technical scheme, the pedal bracket comprises support rods which are oppositely arranged 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 at the same side through a rotating supporting piece and a connecting rod mechanism.

As a preferred technical solution, the strut includes a strut body, the strut body is disposed along the extending direction of the third connecting rod, the rear end of the strut body is fixedly connected with the third connecting rod, and the front end of the strut body extends forward;

the front part of the strut body is provided with the sliding extension mechanism, and the pedal plate is connected between the front ends of the two sliding extension mechanisms.

As a preferred technical scheme, the sliding extension mechanism comprises a support rod sleeve which is sleeved on the support rod body in a sliding manner, a sliding limiting structure and an elastic reset mechanism are arranged between the support rod sleeve and the support rod body, and the pedal plate is connected between the two support rod sleeves;

the elastic reset mechanism stores elastic potential energy when the support rod sleeve slides forwards under the thrust, and releases the elastic potential energy after the thrust is removed so as to reset the support rod sleeve backwards.

The utility model has the advantages that: adjust the structure more nimble, reduced the space occupy-place when accomodating simultaneously, in addition, control turned angle can adjust pedal support for the angle of seat skeleton in great range, can adapt to the passenger needs of different figures again through setting up the slip extension mechanism, and these all improve the controllability and the travelling comfort of seat.

Drawings

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

FIG. 2 is a schematic view of another view of FIG. 1;

FIG. 3 is an enlarged view of the portion m of FIG. 2;

FIG. 4 is a schematic structural view of the pedal bracket of the present invention in the storage position;

fig. 5 is a schematic view of the structure of fig. 4 from another view angle.

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 seat rotation folding pedal includes a seat frame, a rotation mechanism 100 is connected to a front portion of the seat frame, the rotation mechanism 100 includes a rotation support member 110, one end of the rotation support member 110 is rotatably connected to the seat frame, the other end of the rotation support member is hinged to a pedal support 200, a link mechanism is further connected between the pedal support 200 and the seat frame, the link mechanism is used for driving the pedal support 200 to unfold forward when the rotation support member 110 rotates forward, and driving the pedal support 200 to retract backward and fold the rotation support member 110 from below when the rotation support member 110 rotates backward. The front part of the pedal bracket 200 is provided with a sliding extension mechanism.

Because the bearing structure who adopts the rotary type supports pedal support 200 to pedal support 200 rotates support piece 110 relatively again, thereby realizes pedal structure's rotation and folding, and even make the regulation structure more nimble, the space occupation when having reduced again and accomodating. In addition, the angle of the foot rest 200 relative to the seat frame can be adjusted within a wide range by controlling the rotation angle, and the needs of passengers with different shapes can be met by arranging the sliding extension mechanism, so that the adjustability and the comfort of the seat are improved.

The rotating support member 110 is a first connecting rod, the rear end of the first connecting rod is rotatably connected to the seat frame, and the front end of the first connecting rod is hinged to the pedal bracket 200. The rear end of the link mechanism is hinged to the seat frame, and the front end of the link mechanism is fixedly connected with the pedal support 200. The link mechanism, the first connecting rod and the seat framework form a four-link mechanism. Preferably, the four-bar linkage is a parallelogram linkage.

The link mechanism comprises a second link 120 and a third link 130 hinged to each other, the rear end of the second link 120 is hinged to the seat frame, the other end of the second link is hinged to one end of the third link 130, and the front end of the third link 130 is fixedly connected to or integrally formed with the pedal bracket 200.

In a simple and controllable structure, the rotary supporting member 110 is connected to the seat frame through a pedal recliner 140, the pedal recliner 140 includes a first link plate 141, a second link plate 142 and a core member 143 connecting the first link plate 141 and the second link plate 142, the first link plate 141 is fixedly connected to the seat frame, and the second link plate 142 is formed by the rotary supporting member 110. The step recliners 140 are concentric recliners.

For convenience of installation, the link mechanism and the second link plate 142 are located on the same side of the first link plate 141. The second connecting rod 120 is arc-shaped, the second connecting rod 120 has an arc-shaped concave surface 121 corresponding to the portion of the second link plate 142 corresponding to the core part 143, and the arc-shaped concave surface 121 and the second link plate 142 form a protrusion limiting structure. As shown in fig. 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 a retraction limit structure. As shown in fig. 4 and 5, when the pedal bracket 200 is retracted rearward, the catching notch 144 abuts against the corresponding hinge shaft to catch.

The rotating support 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 to one end of the connecting rod through a bolt, and the other end of the connecting rod is hinged to the front end of the third connecting rod 130.

In one embodiment, the pedal bracket 200 includes two 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 legrest framework 300 is rotatably connected to the front portion of the seat frame 400, and both sides of the front end of the legrest framework 300 are respectively connected to the supporting rods 210 on the same side through a rotating supporting member 110 and a link mechanism.

A synchronizing bar is connected between the core members 143 of the pedal recliners 140 at both sides.

The strut 210 includes a strut body 211, the strut body 211 is disposed along the extending direction of the third connecting rod 130, the rear end of the strut body 211 is fixedly connected to the third connecting rod 130, and the front end of the strut body 211 extends forward. The sliding extension mechanism is provided at the front of the strut body 211, and the pedal 220 is connected between the front ends of the two sliding extension mechanisms.

As shown in fig. 2 and 3, the sliding extending mechanism includes a supporting rod sleeve 212 slidably sleeved on the supporting rod body 211, a sliding limiting structure and an elastic resetting mechanism are arranged between the supporting rod sleeve 212 and the supporting rod body 211, and the pedal 220 is connected between the two supporting rod sleeves 212. The elastic reset mechanism stores elastic potential energy when the strut sleeve 212 slides forward under a pushing force, and releases the elastic potential energy after the pushing force is released so as to reset the strut sleeve 212 backward.

Specifically, the sliding limiting structure includes a long hole 213 penetrating through the support rod body 211, and a limiting bolt 214 movably disposed in the long hole 213, and the limiting bolt 214 is fixedly connected to the support rod sleeve 212. The limit bolt 214 slides in the elongated hole 213, so that the front and rear ends of the elongated hole 213 form limit positions of the limit bolt 214.

The utility model discloses a chair support, including branch body 211, branch sleeve 212, slip breach, branch sleeve 212, branch body 211 is the platykurtic, the both sides face of branch body 211 is respectively towards the left and right sides of seat skeleton, the slip breach has been seted up to the anterior one side up of branch body 211, should slide the breach and extend to the branch body 211 front end, branch sleeve 212 cover is in on the branch body 211 that the slip breach corresponds, branch sleeve 212 upper surface is no longer than branch body 211 upper edge. With this arrangement, when the post sleeve 212 is reset, the upper surface of the post 210 is flush, and is more easily adjacent to the rotational support 110 when the pedals are retracted, resulting in a more compact structure.

The elastic reset mechanism comprises a reset tension spring 230, one end of the reset tension spring 230 is connected with the pole body 211, and the other end is connected with the pole sleeve 212 or the pedal 220.

When the seat is pedaled in the storage position, the pedal angle adjuster 140 drives the rotating support 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 rotating support 110. When the rider uses the bicycle, the pedal recliner 140 drives the rotating support 110 to rotate forward, and the pedal bracket 200 rotates forward and extends through the four-bar linkage. Because the angle adjuster can be positioned at any angle, the extending angle and the position of the pedal bracket 200 can be flexibly adjusted. When the foot rest 200 is fully deployed forward, the footrests 220 of the foot rest 200 are higher than the extension line of the upper surface of the leg rest, thereby facilitating the occupant to step on the footrests 220. For occupants of different shapes, stepping on the foot board 220, the sliding extension mechanism can adaptively slide to an appropriate position to accommodate the position of the occupant's foot. When the passenger leaves, the reset tension spring 230 drives the rod sleeve 212 and the pedal 220 to reset.

In order to enable the lower legs of the passengers to be supported on the leg supports more stably, two grooves 310 are formed in the upper surface of the front end of the leg support framework 300, and the two grooves 310 are respectively close to the left side and the right side of the front end of the leg support framework 300.

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 seat rotates foldable pedal, includes seat skeleton, its characterized in that: the front part of the seat framework is connected with a rotating mechanism (100), the rotating mechanism (100) comprises a rotating support piece (110), one end of the rotating support piece (110) is rotatably connected with the seat framework, the other end of the rotating support piece is hinged with a pedal support (200), a connecting rod mechanism is further connected between the pedal support (200) and the seat framework, the connecting rod mechanism is used for driving the pedal support (200) to unfold forwards when the rotating support piece (110) rotates forwards, and driving the pedal support (200) to retract backwards and fold the rotating support piece (110) from the lower direction when the rotating support piece (110) rotates backwards;

the front part of the pedal bracket (200) is provided with a sliding extension mechanism.

2. The seat rotation folding footrest of claim 1, wherein: the rotary supporting piece (110) is a first connecting rod, the rear end of the first connecting rod is rotatably connected with the seat framework, and the front end of the first connecting rod is hinged with the pedal bracket (200);

the rear end of the connecting rod mechanism is hinged with the seat framework, and the front end of the connecting rod mechanism is fixedly connected with the pedal bracket (200);

3. The seat rotation folding footrest of claim 2, wherein: the four-bar mechanism is a parallelogram mechanism.

4. The seat swivel folding footrest of claim 3, wherein: the connecting rod mechanism comprises a second connecting rod (120) and a third connecting rod (130) which are hinged with each other, the rear end of the second connecting rod (120) is hinged with the seat framework, the other end of the second connecting rod is hinged with one end of the third connecting rod (130), and the front end of the third connecting rod (130) is fixedly connected with the pedal support (200).

5. The seat swivel folding footrest of claim 4, wherein: the rotary supporting piece (110) is connected with the seat framework through a pedal angle adjuster (140), the pedal angle adjuster (140) comprises a first connecting plate (141), a second connecting plate (142) and a core piece (143) for connecting the first connecting plate and the second connecting plate, the first connecting plate (141) is fixedly connected with the seat framework, and the second connecting plate (142) is formed by the rotary supporting piece (110).

6. The seat swivel folding footrest of claim 5, wherein: the connecting rod mechanism and the second connecting plate (142) are positioned on the same side of the first connecting plate (141);

the second connecting rod (120) is arc-shaped, the second connecting rod (120) is provided with an arc-shaped inner concave surface (121) which is matched with the part, corresponding to the core piece (143), of the second connecting plate (142), and the arc-shaped inner concave surface (121) and the second connecting plate (142) form a forward extending limiting structure.

7. The seat swivel folding footrest of claim 6, wherein: one side of the second link plate (142) facing the second connecting rod (120) is provided with a limiting notch (144), and the hinge shafts of the second connecting rod (120) and the seat framework are matched with the limiting notch (144) to form a retraction limiting structure.

8. The seat swivel folding footrest of claim 6, 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), wherein 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 rod (210) at the same side through a rotating supporting piece (110) and a connecting rod mechanism.

9. The seat swivel folding footrest of claim 8, wherein: the strut (210) comprises a strut body (211), the strut body (211) is arranged along the extending direction of the third connecting rod (130), the rear end of the strut body (211) is fixedly connected with the third connecting rod (130), and the front end of the strut body (211) extends forwards;

the sliding extension mechanism is arranged at the front part of the strut body (211), and the pedal (220) is connected between the front ends of the two sliding extension mechanisms.

10. The seat pan fold step of claim 9, wherein: the sliding extension mechanism comprises a support rod sleeve (212) which is sleeved on the support rod body (211) in a sliding mode, a sliding limiting structure and an elastic reset mechanism are arranged between the support rod sleeve (212) and the support rod body (211), and the pedal (220) is connected between the two support rod sleeves (212);

the elastic reset mechanism stores elastic potential energy when the strut sleeve (212) slides forwards under thrust, and releases the elastic potential energy after the thrust is removed so as to reset the strut sleeve (212) backwards.