Pedal rotation adjustment device, pedal assembly and seat

Abstract

The application provides a foot pedal rotation adjusting device, a foot pedal assembly and a seat, which comprises a reset member, a first gear, a second gear and a first elastic member; the reset member is rotatably arranged on a rotating shaft, and an installation space for installing the first gear and the second gear is arranged in the reset member; the reset member is provided with a foot pedal connecting portion for connecting the foot pedal; the first gear is fixed on the rotating shaft, and the second gear is pressed by the first elastic member to engage with the first gear; the reset member is further provided with a limiting groove for limiting the movement space of the second gear; when the reset member rotates, the limiting groove drives the second gear to rotate relative to the first gear; an edge of the first gear is further provided with a first limiting portion for lifting the second gear to disengage from the first gear when the second gear engages with the first limiting portion. The application can realize multi-angle adjustment of the foot pedal, and has simple structure and convenient operation.

Description

Technical Field

[0001] This invention relates to the field of furniture technology, and in particular to a foot pedal rotation adjustment device, a foot pedal assembly, and a seat. Background Technology

[0002] Chairs are one of the most common pieces of furniture in human life and work. With the improvement of human life and technology, chairs have also undergone continuous improvement and development. The components of chairs also vary to meet the requirements of different scenarios.

[0003] Taking office chairs as an example, with the growing demand for office rest, office chairs need to provide both sitting and reclining positions to meet the dual needs of work and rest. Currently, to meet this market demand, more and more office chairs are equipped with footrests. Office chairs with footrests allow people to rest better and recover their energy more fully.

[0004] However, currently, many foot pedals on the market are inconvenient to operate. Most require turning on a switch to enable the foot pedal rotation function, and most only have one fixed position, that is, locked in the horizontal direction, which cannot meet the actual needs of different users. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention proposes a foot pedal rotation adjustment device, a foot pedal assembly and a seat to solve the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a foot pedal rotation adjustment device for mounting a foot pedal onto a rotating shaft, comprising: a reset member, a first gear, a second gear, and a first elastic member;

[0008] The reset component is rotatably mounted on the rotating shaft. The reset component has an installation space inside, and the first gear and the second gear are respectively located in the installation space. The reset component is provided with a foot pedal connecting part for connecting the foot pedal.

[0009] The first gear is fixed on the rotating shaft, and the second gear is pressed by the first elastic element to mesh with the first gear;

[0010] The reset component is also provided with a limiting groove for limiting the movement space of the second gear. When the reset component rotates, the limiting groove drives the second gear to rotate relative to the first gear.

[0011] The edge of the first gear is also provided with a first limiting part, which is used to lift the second gear when the second gear is engaged with the first limiting part, so that the second gear disengages from the first gear.

[0012] Preferably, the second gear is an arc-shaped rack, and the limiting groove is an arc-shaped groove adapted to the shape of the second gear. The first limiting part has a first limiting surface that is radially inclined relative to it. The first end of the second gear is disposed corresponding to the first limiting surface. When the first end of the second gear meshes with the position of the first limiting part, the first end of the second gear slides on the first limiting surface to lift the second gear and disengage it.

[0013] Preferably, the thickness of the second gear gradually increases from the first end to the second end, and the width of the limiting groove gradually increases from the first end to the second end. When the second gear moves toward the first limiting part, the second gear can be lifted at the second end of the limiting groove to disengage.

[0014] Preferably, the first gear is further provided with a second limiting part corresponding to the second end of the second gear. When the second gear moves toward the second limiting part, the second gear is restricted by the first end of the limiting groove and the second limiting part and remains in mesh with the first gear.

[0015] Preferably, the reset component includes a first reset component, a second reset component, and a third reset component. The first reset component and the second reset component are spaced apart and disposed opposite to each other. The third reset component is sandwiched between the first reset component and the second reset component to form a gap, so that the first reset component, the second reset component, and the third reset component together enclose the installation space.

[0016] Preferably, the limiting groove includes a first limiting groove and a second limiting groove, and the first limiting groove and the second limiting groove are respectively disposed on the first reset member and the second reset member.

[0017] Preferably, the first elastic element is a long strip-shaped elastic sheet structure, with both ends of the first elastic element abutting against the third reset element for limiting by the third reset element, and the third reset element is provided with a relief groove corresponding to the compression direction of the first elastic element.

[0018] Preferably, it further includes a second elastic member for providing rotational restoring force to the reset member, one end of the second elastic member being fixed to the reset member and the other end being fixed to the rotating shaft.

[0019] Preferably, the foot pedal connecting part is disposed on one side edge of the first reset member, and the reset member is further provided with a connecting pin, which passes through the first reset member, the second reset member and the third reset member and is connected to the foot pedal.

[0020] In a second aspect, the present invention provides a foot pedal assembly, comprising: a bracket, a rotating shaft disposed on the bracket, and a foot pedal, wherein the foot pedal is connected to the rotating shaft via any of the foot pedal rotation adjustment devices described above.

[0021] Thirdly, the present invention provides a seat, including a seat body and the aforementioned footrest assembly disposed on the seat body.

[0022] Compared with related technologies, in the embodiments of the present invention, the foot pedal rotation adjustment device allows for multi-angle adjustment of the foot pedal because the second gear can be driven by a reset member and mesh with any tooth position of the first gear. Furthermore, in this embodiment, folding the foot pedal upwards or downwards requires only force applied to the foot pedal, eliminating the need for additional switches and simplifying the operation. Moreover, the foot pedal rotation adjustment device in this embodiment is implemented using only one reset member, two gears, and one spring, making its structure simpler and smaller than other existing mechanisms. Attached Figure Description

[0023] The present invention will now be described in detail with reference to the accompanying drawings. The above and other aspects of the present invention will become clearer and more readily understood through the detailed description following the accompanying drawings. In the drawings:

[0024] Figure 1 This is a schematic diagram of the foot pedal assembly in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the foot pedal rotation adjustment device in an embodiment of the present invention;

[0026] Figure 3 This is an exploded view of the foot pedal rotation adjustment device in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the foot pedal rotation adjustment device and the meshing state of the second gear and the first gear in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of the foot pedal rotation adjustment device and the state in which the second gear is disengaged from the first gear in an embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of the foot pedal assembly in the downward folded state in an embodiment of the present invention;

[0030] Figure 7This is a schematic diagram of the foot pedal assembly in the unfolded use state in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the foot pedal assembly in the upward folded state in an embodiment of the present invention.

[0032] in,

[0033] 1. Foot pedal; 2. Foot pedal rotation adjustment device; 3. Bracket; 11. Housing; 20. Reset component; 21. First gear; 22. Second gear; 23. First elastic component; 24. Limiting groove; 25. Installation space; 26. Second elastic component; 31. Rotating shaft; 201. First reset component; 202. Second reset component; 203. Third reset component; 204. Foot pedal connecting part; 205. Connecting pin; 211. First limiting part; 212. Second limiting part; 213. First limiting surface; 241. First limiting groove; 242. Second limiting groove; 2033. Clearance groove. Detailed Implementation

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please refer to Figure 1The figure shows a foot pedal assembly provided in an embodiment of the present invention, including: a bracket 3, a foot pedal rotation adjustment device 2, and a foot pedal 1, wherein the bracket 3 is provided with a rotation shaft 31, and the foot pedal 1 is disposed on the rotation shaft 31 through the foot pedal rotation adjustment device 2.

[0038] In this embodiment, please refer to Figure 2-5 As shown, the foot pedal rotation adjustment device 2 includes: a reset member 20, a first gear 21, a second gear 22, and a first elastic member 23.

[0039] The reset component 20 is rotatably mounted on the rotating shaft 31. An installation space 25 is provided inside the reset component 20, and the first gear 21 and the second gear 22 are respectively installed within the installation space 25. The reset component 20 is provided with a foot pedal connecting part 204 for connecting the foot pedal 1. The foot pedal 1 can be connected to the foot pedal connecting part 204 through its housing 11, thereby achieving connection with the foot pedal rotation adjustment device 2.

[0040] The first gear 21 is fixed on the rotating shaft 31, and the second gear 22 is pressed by the first elastic element 23 to mesh with the first gear 21. The reset member 20 is also provided with a limiting groove 24 for limiting the movement space of the second gear. When the reset member 20 rotates, driven by the limiting groove 24, the second gear 22 squeezes the first elastic element 23, causing the second gear 22 to slip off the first gear 21. That is, the limiting groove 24 drives the second gear 22 to rotate relative to the first gear 21. At this time, the first gear 21, since it is fixed on the rotating shaft 31, will not rotate.

[0041] The edge of the first gear 21 is also provided with a first limiting part 211, which is used to lift the second gear 22 when the second gear 22 is engaged with the first limiting part 211, so that the second gear 22 is disengaged from the first gear 21.

[0042] In this embodiment, the second gear 22 is an arc-shaped rack, and the limiting groove 24 is an arc-shaped groove adapted to the shape of the second gear 22. The two ends of the limiting groove 24 have limiting surfaces corresponding to the two ends of the second gear 22. The first limiting part 211 has a first limiting surface 213 that is radially inclined relative to the first gear 21. The first end of the second gear 22 is positioned corresponding to the first limiting surface 213. When the first end of the second gear 22 meshes with the position of the first limiting part 211, the first end of the second gear 22 slides on the first limiting surface 213, causing the second gear 22 to be lifted and disengaged. The use of an arc-shaped rack structure facilitates the miniaturization of the entire device and simplifies the drive structure of the reset member 20, requiring only a limiting groove 24 with a corresponding shape.

[0043] In this embodiment, combined with Figure 4 and Figure 5As shown, the thickness of the second gear 22 gradually increases from the first end to the second end (radial direction), and the width of the limiting groove 24 also gradually increases from the first end to the second end. When the second gear 22 moves towards the first limiting part 211, the second gear 22 can be lifted up and disengaged from the second end of the limiting groove 24 (see reference). Figure 5 When the second gear 22 moves in the opposite direction, the width of the first end of the limiting groove 24 is small, and the second gear 22 cannot be lifted, thus ensuring that the reset member 20 will not continue to rotate after rotating to a specific position.

[0044] In this embodiment, the first gear 21 is also provided with a second limiting part 212 corresponding to the second end of the second gear 22. When the second gear 22 moves toward the second limiting part 212, the second gear 22 is limited by the first end of the limiting groove 24 and the second limiting part 212, and thus remains in mesh with the first gear 21.

[0045] It is worth mentioning that, in this embodiment, a section of teeth that can mesh with the second gear is defined between the first limiting part 211 and the second limiting part 212, so that the rotation angle of the reset member 20 is limited to the range of this section of teeth. Of course, the distance of this section of teeth can be set according to actual needs and is not limited to the implementation method provided in the accompanying drawings of this embodiment.

[0046] Please combine Figure 3 As shown, the reset component 20 includes a first reset component 201, a second reset component 202, and a third reset component 203. The first reset component 201 and the second reset component 202 are spaced apart and arranged opposite to each other. The third reset component 203 is sandwiched between the first reset component 201 and the second reset component 202 to form a gap, so that the first reset component 201, the second reset component 202, and the third reset component 203 together form the installation space 25. The reset component 20 serves to drive the second gear 22 and rotate the foot pedal 1. The reset component 20 is configured as multiple components to facilitate the installation of components such as the first gear 21, the second gear 22, and the first elastic element 23.

[0047] In this embodiment, please continue to combine Figure 3 As shown, the limiting groove 24 includes a first limiting groove 241 and a second limiting groove 242, which are respectively disposed on the first reset member 201 and the second reset member 202. The provision of limiting grooves on the first reset member 201 and the second reset member 202 ensures the stability of the movement of the second gear 22 and also facilitates the installation of the second gear 22.

[0048] In this embodiment, please refer to Figure 4 and Figure 5As shown, the first elastic element 23 is a long strip-shaped spring structure. Both ends of the first elastic element 23 abut against the third reset element 203 for limiting its position. The third reset element 203 has a relief groove 2033 corresponding to the compression direction of the first elastic element 23. Of course, in other embodiments, the first elastic element 23 can also have other structural forms, such as a coil spring or a compression spring. Different types of elastic elements require different structural combinations to maintain the pressure on the second gear 22.

[0049] Please refer to Figure 2 and Figure 3 As shown, in this embodiment, a second elastic element 26 is also included to provide a rotational restoring force for the reset element 20. One end of the second elastic element 26 is fixed to the reset element 20, and the other end is fixed to the rotating shaft 31. Specifically, the second elastic element 26 can be a spring wound around the rotating shaft 31. When the reset element 20 rotates relative to the rotating shaft 31, the spring is stretched, and the spring can maintain a restoring force on the reset element 20. In another embodiment, the second elastic element 26 can also be a torsion spring. For cases where the rotation angle of the reset element 20 is small, a torsion spring can be used.

[0050] In this embodiment, the foot pedal connecting part 204 is disposed on one side edge of the first reset member 201. The reset member 201 is also provided with a connecting pin 205, which passes through the first reset member 201, the second reset member 202, and the third reset member 203 and is connected to the foot pedal 1. The addition of the connecting pin 205 can improve the connection strength between the foot pedal 1 and the foot pedal connecting device 2 and ensure that the housing 11 of the foot pedal 1 will not be damaged due to torque.

[0051] Please refer to Figure 6 As shown, the footrest assembly is initially hidden under the seat, and at this time, the footrest is folded downwards. (Refer to...) Figure 4 As shown, the reset member 20 drives the second gear 22 to the position of the second limiting part 212. In some embodiments, the foot pedal assembly can be pulled out from under the seat by dragging.

[0052] Please refer to Figure 7 And continue to combine Figure 4 As shown, when the foot pedal is needed, rotating it counterclockwise causes the reset member 20 to rotate, which in turn causes the second gear 22 to rotate counterclockwise. After adjusting to the desired position, the foot pedal is stopped from rotating. At this time, the second gear 22 remains engaged with the first gear 21 under the action of the first elastic member 23, thus fixing the foot pedal. It is worth noting that in this embodiment, the second gear 22 can engage with any tooth position of the first gear 21, thus enabling multi-angle adjustment of the foot pedal.

[0053] Please refer to Figure 8 and combined Figure 5 As shown, when the pedal needs to be folded downwards, rotate the pedal upwards to its maximum position. At this time, the second gear 22 reaches the position of the first limiting part 211. Simultaneously, the second gear 22 is also located at the second end of the limiting groove 24. At this point, the second gear 22 can be lifted by the first limiting part 211, causing it to disengage from the first gear 21. After the second gear 22 disengages, the pedal can be folded downwards to retract it.

[0054] Compared with related technologies, in the embodiments of the present invention, the foot pedal rotation adjustment device 2 can achieve multi-angle adjustment of the foot pedal because the second gear 22 can be driven by the reset member 20 and mesh with any tooth position of the first gear 22. Furthermore, in this embodiment, folding the foot pedal adjustment device 2 upwards or downwards only requires force applied to the foot pedal, eliminating the need for additional switches and simplifying the operation. Moreover, the foot pedal rotation adjustment device 2 in this embodiment is implemented using only one reset member, two gears, and one spring, making its structure simpler and smaller than other existing mechanisms.

[0055] Based on the above foot pedal assembly, embodiments of the present invention can also provide a seat, including: a seat body and a foot pedal assembly disposed on the seat body.

[0056] It should be noted that the various embodiments described above with reference to the accompanying drawings are merely illustrative of the present invention and not intended to limit its scope. Those skilled in the art should understand that any modifications or equivalent substitutions made to the present invention without departing from its spirit and scope should be included within the scope of the present invention. Furthermore, unless the context otherwise requires, words appearing in the singular include those in the plural, and vice versa. Additionally, unless specifically stated otherwise, all or part of any embodiment may be used in conjunction with all or part of any other embodiment.

Claims

1. A foot pedal rotation adjustment device (2) for mounting a foot pedal (1) onto a rotating shaft (31), characterized in that, include: The resetting member (20), the first gear (21), the second gear (22), and the first elastic member (23); The reset component (20) is rotatably mounted on the rotating shaft (31). The reset component (20) has an installation space (25) inside. The first gear (21) and the second gear (22) are located in the installation space (25) respectively. The reset component (20) has a foot pedal connection part (204) for connecting the foot pedal (1). The first gear (21) is fixed on the rotating shaft (31), and the second gear (22) is pressed by the first elastic element (23) to mesh with the first gear (21); The reset member (20) is also provided with a limiting groove (24) for limiting the movement space of the second gear (22). When the reset member (20) rotates, the limiting groove (24) drives the second gear (22) to rotate relative to the first gear (21). The edge of the first gear (21) is also provided with a first limiting part (211), which is used to push up the second gear (22) when the second gear (22) is engaged with the first limiting part (211), so that the second gear (22) disengages from the first gear (21); The reset component (20) includes: a first reset component (201), a second reset component (202), and a third reset component (203). The first reset component (201) and the second reset component (202) are spaced apart and arranged opposite to each other. The third reset component (203) is sandwiched between the first reset component (201) and the second reset component (202) to form a gap, so that the first reset component (201), the second reset component (202), and the third reset component (203) together form the installation space (25). The first elastic element (23) is a long strip-shaped elastic sheet structure. The two ends of the first elastic element (23) abut against the third reset element (203) to limit the movement through the third reset element (203). The third reset element (203) is provided with a relief groove (2033) corresponding to the compression direction of the first elastic element (23). It also includes a second elastic member (26) for providing rotational restoring force to the reset member (20), one end of the second elastic member (26) being fixed to the reset member (20) and the other end being fixed to the rotating shaft (31).

2. The foot pedal rotation adjustment device (2) according to claim 1, characterized in that, The second gear (22) is an arc-shaped rack, and the limiting groove (24) is an arc-shaped groove adapted to the shape of the second gear (22). The first limiting part (211) has a first limiting surface (213) that is radially inclined relative to the first gear (21). The first end of the second gear (22) is provided corresponding to the first limiting surface (213). When the first end of the second gear (22) meshes with the position of the first limiting part (211), the first end of the second gear (22) slides on the first limiting surface (213) to lift the second gear (22) to disengage.

3. The foot pedal rotation adjustment device (2) according to claim 2, characterized in that, The thickness of the second gear (22) gradually increases from the first end to the second end, and the width of the limiting groove (24) gradually increases from the first end to the second end. When the second gear (22) moves toward the first limiting part (211), the second gear (22) can be lifted at the second end of the limiting groove (24) to disengage.

4. The foot pedal rotation adjustment device (2) according to claim 3, characterized in that, The first gear (21) is also provided with a second limiting part (212) corresponding to the second end of the second gear (22). When the second gear (22) moves toward the second limiting part (212), the second gear (22) is restricted by the first end of the limiting groove (24) and the second limiting part (212) and remains in mesh with the first gear (21).

5. The foot pedal rotation adjustment device (2) according to claim 1, characterized in that, The limiting groove (24) includes a first limiting groove (241) and a second limiting groove (242), which are respectively disposed on the first reset member (201) and the second reset member (202).

6. The foot pedal rotation adjustment device (2) according to claim 1, characterized in that, The foot pedal connecting part (204) is disposed on one side edge of the first reset member (201). The reset member (20) is also provided with a connecting pin (205). The connecting pin (205) passes through the first reset member (201), the second reset member (202) and the third reset member (203) and is connected to the foot pedal (1).

7. A foot pedal assembly, characterized in that, include: The bracket (3), the rotating shaft (31) disposed on the bracket (3), and the foot pedal (1), wherein the foot pedal (1) is connected to the rotating shaft (31) by a foot pedal rotation adjustment device (2) as described in any one of claims 1-6.

8. A type of seat, characterized in that, Includes a chair body and a foot pedal assembly as described in claim 7, disposed on the chair body.

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