Footrests and seats

Abstract

The present invention relates to a footrest device and a seat, the footrest device comprising: a footrest plate; a footrest bracket, the footrest plate is mounted on the footrest bracket; a mounting bracket, the mounting bracket is located below the footrest bracket, the mounting bracket is used to be fixed on a chair back or a footrest; and a support assembly, the support assembly is connected between the footrest bracket and the mounting bracket, the footrest bracket can be flipped between a first position and a second position relative to the support assembly; when the footrest bracket is in the first position, the footrest plate is retracted relative to the support assembly; when the footrest bracket is in the second position, the footrest plate is unfolded relative to the support assembly. The footrest device of this scheme can overcome the defect of insufficient height of the original vehicle footrest, can be used by rear passengers when resting, and effectively improve the riding comfort of passengers.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to a footrest device and a seat. Background Art

[0002] In some mid-to-high-end models, footrests are usually installed behind the front seats for rear passengers to use to improve the comfort of rear passengers. However, traditional footrests are generally fixed in height and cannot be adjusted. They are mainly used when rear passengers are sitting or standing. When the height of rear passengers changes (for example, when passengers lie down to rest), the height of the original car footrest is obviously insufficient and cannot support the passengers' feet well, affecting the comfort of passengers. Summary of the invention

[0003] Based on this, it is necessary to provide a footrest device and a seat to address the above problems. The footrest device can overcome the defect of insufficient height of the original vehicle foot pedal and can be used by rear passengers when resting, thereby effectively improving the riding comfort of the passengers.

[0004] The present application proposes a foot support device, comprising:

[0005] Footrests;

[0006] A foot support bracket, the foot support plate is mounted on the foot support bracket;

[0007] a mounting bracket, the mounting bracket being located below the footrest bracket, the mounting bracket being used to be fixed to a chair back or a footrest; and

[0008] A support assembly, wherein the support assembly is connected between the footrest bracket and the mounting bracket, and the footrest bracket can be flipped between a first position and a second position relative to the support assembly; when the footrest bracket is in the first position, the footrest plate is retracted relative to the support assembly; when the footrest bracket is in the second position, the footrest plate is unfolded relative to the support assembly.

[0009] The above-mentioned footrest device is used to be installed on the backrest of the front seat or the footrest on the back side of the seat. When not in use, the footrest bracket is in the first position, at which time the footrest board is retracted relative to the support assembly, and the footrest board is generally upright or slightly inclined relative to the vertical direction, which will not affect the riding space of the rear passengers, and will not affect the use of the original vehicle's footrest. When the passenger needs to lie down to rest, the footrest bracket is flipped to the second position relative to the support assembly, at which time the footrest board is unfolded relative to the support assembly, and the footrest board is generally horizontal. Since the footrest board is supported by the support assembly, its height position is sufficient, so that it can well support the passenger's feet, which can effectively improve the passenger's riding comfort.

[0010] In one embodiment, the support assembly includes a support rod and an elastic telescopic rod, one end of the support rod is rotatably connected to the footrest bracket, the other end of the support rod is connected to the mounting bracket, the telescopic end of the elastic telescopic rod is movably connected to the footrest bracket, the other end of the elastic telescopic rod is rotatably connected to the mounting bracket, and the footrest bracket, the mounting bracket, the support rod and the elastic telescopic rod cooperate with each other to form a quadrilateral linkage mechanism.

[0011] In one embodiment, the footrest plate is provided with a first limiting surface, and when the footrest bracket is in the first position, the support rod is in limiting contact with the first limiting surface to limit the movement of the footrest bracket toward the side close to the chair back; the footrest bracket is provided with a second limiting surface, and when the footrest bracket is in the second position, the support rod is in limiting contact with the second limiting surface to limit the movement of the footrest bracket toward the side away from the chair back.

[0012] In one embodiment, the telescopic end of the elastic telescopic rod is slidably matched with the footrest bracket. When the footrest bracket is in the first position, the elastic telescopic rod applies a first force to the footrest bracket so that the footrest bracket maintains a tendency to move toward the side close to the chair back. When the footrest bracket is in the second position, the elastic telescopic rod applies a second force to the footrest bracket so that the footrest bracket maintains a tendency to move away from the chair back.

[0013] In one embodiment, the footrest bracket is provided with a track groove, and the track groove is set offset from the rotation center of the footrest bracket. The telescopic end of the elastic telescopic rod is provided with a sliding shaft, and the sliding shaft is slidably matched with the track groove. When the footrest bracket is in the first position, the sliding shaft is limitedly abutted against the first end of the track groove, and when the footrest bracket is in the second position, the sliding shaft is limitedly abutted against the second end of the track groove.

[0014] In one embodiment, the support rod is rotatably connected to the mounting bracket, and the mounting bracket is provided with a third limiting surface and a fourth limiting surface on opposite sides corresponding to the support rod, respectively, and the third limiting surface and the fourth limiting surface cooperate to limit the rotation angle of the support rod.

[0015] In one embodiment, the third limiting surface is located on a side of the support rod close to the chair back, and when the support rod is in limiting contact with the third limiting surface, the axis of the support rod is offset toward the fourth quadrant relative to the vertical direction to form an angle.

[0016] In one embodiment, the elastic telescopic rod is a compressed gas spring.

[0017] In one embodiment, the footrest brackets are connected to opposite sides of the footrest plate, respectively, the mounting bracket is correspondingly arranged below each of the footrest brackets, and the supporting assembly is connected between the corresponding footrest brackets and the mounting brackets.

[0018] The present application also proposes a chair, comprising a chair back, a footrest arranged on the back side of the chair back, and the footrest device as described above, wherein the footrest device is fixed to the chair back or the footrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural schematic diagram of a foot support device according to an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of a footrest device being in a retracted state relative to a seat back;

[0023] Figure 3 for Figure 2 Schematic diagram of the footrest device switching from a stowed state to an unfolded state relative to the seat back;

[0024] Figure 4 for Figure 3 A schematic diagram showing the footrest device in an unfolded state relative to the chair back;

[0025] Figure 5 for Figure 4 A schematic diagram of the footrest plate switching from a stowed state to an unfolded state relative to the support assembly;

[0026] Figure 6 for Figure 5 A schematic diagram showing the footrest in an unfolded state relative to the support assembly;

[0027] Figure 7 Schematic diagram of the footrest moving with the seat back adjustment.

[0028] 10. Footrest device; 11. Footrest plate; 111. First limiting surface; 12. Footrest bracket; 121. Second limiting surface; 122. Track groove; 13. Mounting bracket; 131. Third limiting surface; 132. Fourth limiting surface; 14. Support rod; 15. Elastic telescopic rod; 151. Sliding shaft; 16. First rotation center; 17. Second rotation center; 20. Chair back; 30. Foot pedal. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] See also Figure 1 A footrest device 10 provided in one embodiment of the present application includes a footrest plate 11, a footrest bracket 12, a mounting bracket 13 and a support assembly. The footrest plate 11 is mounted on the footrest bracket 12; the mounting bracket 13 is located below the footrest bracket 12, and the mounting bracket 13 is used to be fixed on the chair back 20 or the footrest 30; the support assembly is connected between the footrest bracket 12 and the mounting bracket 13, and the footrest bracket 12 can be flipped between a first position and a second position relative to the support assembly; when the footrest bracket 12 is in the first position, the footrest plate 11 is retracted relative to the support assembly; when the footrest bracket 12 is in the second position, the footrest plate 11 is unfolded relative to the support assembly.

[0031] The footrest device 10 is used to be installed on the backrest 20 of the front seat or the footrest 30 behind the backrest 20. When not in use, the footrest bracket 12 is in the first position (such as Figure 2 or Figure 4 As shown in the figure, the footrest 11 is retracted relative to the support assembly, that is, the footrest 11 is generally upright or slightly inclined relative to the vertical direction, which will not affect the riding space of the rear passengers and the use of the original footrest 30. When the passenger needs to lie down to rest, the footrest bracket 12 is flipped relative to the support assembly to the second position (as shown in the figure). Figure 6 As shown), at this time, the footrest 11 is unfolded relative to the support assembly, and the footrest 11 is generally in a horizontal state. Since the footrest 11 is supported by the support assembly and its height is sufficient, it can well support the feet of the passengers, which can effectively improve the riding comfort of the passengers.

[0032] Furthermore, in the present embodiment, the support assembly includes a support rod 14 and an elastic telescopic rod 15, one end of the support rod 14 is rotatably connected to the foot support bracket 12, the other end of the support rod 14 is connected to the mounting bracket 13, the telescopic end of the elastic telescopic rod 15 is movably connected to the foot support bracket 12, the other end of the elastic telescopic rod 15 is rotatably connected to the mounting bracket 13, the foot support bracket 12, the mounting bracket 13, the support rod 14 and the elastic telescopic rod 15 cooperate with each other to form a quadrilateral linkage mechanism.

[0033] Specifically, Figure 2 As shown, one end of the support rod 14 is rotatably connected to the foot support bracket 12, and the rotation center therebetween is the first rotation center 16, and the telescopic end of the elastic telescopic rod 15 and the point of action of the foot support bracket 12 are set away from the first rotation center 16. The foot support bracket 12, the mounting bracket 13, the support rod 14 and the elastic telescopic rod 15 cooperate with each other to form a quadrilateral connecting rod mechanism, and the overall structure is simple, which can realize the flexible adjustment of the foot support bracket 12. The support rod 14 adopts a rigid rod, which can play a stable supporting and connecting role. The elastic telescopic rod 15 can provide a certain elastic force while providing a supporting role. The elastic telescopic rod 15 acts on the foot support bracket 12 and can limit the foot support bracket 12 to a preset position, so that the foot support plate 11 can be well maintained in a retracted or unfolded state. Optionally, in this embodiment, the elastic telescopic rod 15 adopts a compressed gas spring.

[0034] Furthermore, if Figure 4 As shown, in this embodiment, the footrest plate 11 is provided with a first limiting surface 111. When the footrest bracket 12 is in the first position, the support rod 14 is in limiting contact with the first limiting surface 111 to limit the movement of the footrest bracket 12 toward the side close to the chair back 20. Figure 6 As shown, the footrest bracket 12 is provided with a second limiting surface 121 . When the footrest bracket 12 is in the second position, the support rod 14 abuts against the second limiting surface 121 to limit the movement of the footrest bracket 12 away from the chair back 20 .

[0035] Specifically, when the footrest bracket 12 rotates to the first position relative to the support rod 14, the first limiting surface 111 of the footrest board 11 is in limiting contact with the side of the support rod 14 close to the chair back 20, thereby preventing the footrest bracket 12 from continuing to rotate toward the chair back 20, so that the footrest bracket 12 can be well maintained in the first position, thereby ensuring that the footrest board 11 can be in a relatively stable retracted state. When the footrest bracket 12 rotates to the second position relative to the support rod 14, the second limiting surface 121 on the footrest bracket 12 is in limiting contact with the side of the support rod 14 away from the chair back 20, thereby preventing the footrest bracket 12 from continuing to rotate toward the side away from the chair back 20, so that the footrest bracket 12 can be well maintained in the second position, thereby ensuring that the footrest board 11 can be in a relatively stable unfolded state.

[0036] Furthermore, in the present embodiment, the telescopic end of the elastic telescopic rod 15 is slidably matched with the footrest bracket 12. When the footrest bracket 12 is in the first position, the elastic telescopic rod 15 applies a first force to the footrest bracket 12 so that the footrest bracket 12 maintains a tendency to move toward the side close to the chair back 20. When the footrest bracket 12 is in the second position, the elastic telescopic rod 15 applies a second force to the footrest bracket 12 so that the footrest bracket 12 maintains a tendency to move toward the side away from the chair back 20.

[0037] Specifically, Figure 2 and Figure 4 As shown, when the footrest bracket 12 rotates to the first position relative to the support rod 14, the support rod 14 is in limited contact with the first limiting surface 111 of the footrest plate 11, so that the footrest bracket 12 will no longer rotate toward the side of the chair back 20, and at the same time, the elastic telescopic rod 15 applies a first force F1 to the footrest bracket 12, and the action point of the first force F1 deviates from the first rotation center 16, so that the footrest bracket 12 is subjected to a counterclockwise rotation force F around the first rotation center 16. 逆 , so that the footrest bracket 12 keeps moving toward the side close to the chair back 20, under the rotation force F 逆 Under the support of the first limiting surface 111 and the first force F1, the footrest bracket 12 and the footrest board 11 will not tip over to the side away from the chair back 20. In this way, under the coordinated action of the first limiting surface 111 and the first force F1, the footrest board 11 can be more stably maintained in the retracted state. Figure 5 As shown, when the foot support 11 is needed, it is only necessary to apply a clockwise turning force F to the foot support 11. 翻 , F 翻 The elastic force F1 provided by the elastic telescopic rod 15 must be greater than the elastic force F1, so that the foot support bracket 12 can rotate clockwise around the first rotation center 16 with the foot support plate 11 until the foot support bracket 12 is in the second position. 翻 The force value can be selected or customized according to the user's needs to determine the corresponding elastic telescopic rod 15 specifications. Figure 6 As shown, when the footrest bracket 12 rotates to the second position relative to the support rod 14, the support rod 14 is in limited contact with the second limiting surface 121 of the footrest bracket 12, so that the footrest bracket 12 will no longer rotate toward the side away from the chair back 20, and at the same time, the elastic telescopic rod 15 applies a second force F2 to the footrest bracket 12, and the action point of the second force F2 deviates from the first rotation center 16, so that the footrest bracket 12 is subjected to a force F2 rotating clockwise around the first rotation center 16. 顺 , so that the footrest bracket 12 maintains a tendency to move away from the seat back 20, under the rotation force F 顺With the support of , the footrest bracket 12 and the footrest plate 11 will not rotate toward the side close to the chair back 20. In this way, under the coordinated action of the second limiting surface 121 and the second force F2, the footrest plate 11 can be more stably maintained in the unfolded state, so that it can be used as a footrest for the user.

[0038] Furthermore, in this embodiment, the foot support bracket 12 is provided with a track groove 122, and the track groove 122 is set away from the rotation center of the foot support bracket 12. The telescopic end of the elastic telescopic rod 15 is provided with a sliding shaft 151, and the sliding shaft 151 is slidably matched with the track groove 122. When the foot support bracket 12 is in the first position (such as Figure 2 or Figure 4 As shown), the sliding shaft 151 is in limited contact with the first end of the track groove 122, and when the foot support bracket 12 is in the second position (as shown Figure 6 As shown in the figure, the sliding shaft 151 is in limited contact with the second end of the track groove 122. Specifically, the track groove 122 is an eccentric groove set away from the first rotation center 16. The sliding shaft 151 is in sliding cooperation with the track groove 122, so that the telescopic end of the elastic telescopic rod 15 can apply elastic force at different action points of the foot support bracket 12, thereby producing different supporting effects. Of course, in other embodiments, a slide rail can also be set on the foot support bracket 12, and a slider that slides with the slide rail can be set at the telescopic end of the elastic telescopic rod 15, which can also achieve the same effect.

[0039] Further, in this embodiment, the support rod 14 is rotatably connected to the mounting bracket 13, and the mounting bracket 13 is provided with a third limiting surface 131 and a fourth limiting surface 132 on opposite sides corresponding to the support rod 14, respectively, and the third limiting surface 131 and the fourth limiting surface 132 cooperate to limit the rotation angle of the support rod 14. Specifically, Figure 2 As shown, the third limiting surface 131 is located on the side of the support rod 14 close to the seat back 20. When the support rod 14 abuts against the third limiting surface 131, the support rod 14 is close to the seat back 20 and remains in a substantially upright state. At the same time, the footrest 11 is retracted relative to the support rod 14. At this time, the entire footrest device 10 is in a fully retracted state, which can minimize the occupied space for rear passengers and ensure the comfort of passengers. Figure 7 As shown, when the front row passenger needs to adjust the angle of the backrest 20 of the front row seat backward, the support rod 14 can drive the footrest bracket 12 and the footrest plate 11 to move backward along with the backrest 20 of the front row seat, so as not to hinder the normal use of the front row seat. Among them, the adjustment angle of the footrest device 10 can be customized according to the user's requirements.

[0040] Furthermore, if Figure 2As shown, in this embodiment, the third limiting surface 131 is located on the side of the support rod 14 close to the chair back 20. When the support rod 14 is in contact with the third limiting surface 131, the axis of the support rod 14 is offset toward the fourth quadrant relative to the vertical direction to form an angle. In this way, when the footrest device 10 is in a fully retracted state, the footrest plate 11 is in the fourth quadrant. Under the action of gravity, the footrest plate 11 will drive the footrest bracket 12 and the support rod 14 to rotate counterclockwise around the second rotation center 17. At the same time, due to the first limiting surface 111 of the footrest plate 11 limiting the support rod 14 and the support rod 14 limiting the third limiting surface 131 of the mounting bracket 13, the footrest plate 11 can be kept in a stable retracted state.

[0041] Furthermore, if Figure 1 As shown, on the basis of the above embodiment, foot support brackets 12 are connected to the opposite sides of the foot support plate 11, and mounting brackets 13 are correspondingly arranged below each foot support bracket 12, and support components are connected between the corresponding foot support brackets 12 and mounting brackets 13. Through the cooperation of two groups of foot support brackets 12, two groups of mounting brackets 13 and two groups of supporting components, the foot support plate 11 can be stably supported to ensure that the structure of the entire foot support device 10 is more stable. Optionally, in this embodiment, the two mounting brackets 13 are respectively fixed to the opposite ends of the original vehicle foot pedal 30, so that the use of the original vehicle foot pedal 30 will not be affected, and there is no need to damage the original vehicle seat leather.

[0042] The present application also proposes a chair, which includes a chair back 20, a footrest 30 arranged at the rear side of the chair back 20, and a footrest device 10, wherein the footrest device 10 is fixed to the chair back 20 or the footrest 30. The specific structure of the footrest device 10 can refer to the above embodiment. Since the present chair adopts all the technical solutions of the above embodiment, it has at least all the beneficial effects brought by the above technical solutions, which will not be described one by one here.

[0043] The following combination Figures 2 to 6 , the specific use process of the foot support device 10 of a preferred embodiment is described in detail.

[0044] like Figure 2As shown, in the initial state (i.e. when not in use), the footrest device 10 is in a retracted state as a whole. At this time, there is an offset angle between the axis of the support rod 14 and the vertical direction (i.e. the normal to the horizontal plane), and the footrest plate 11 is in the fourth quadrant. Under the action of gravity, the footrest plate 11 will drive the footrest bracket 12 and the support rod 14 to rotate counterclockwise around the second rotation center 17. At the same time, due to the limitation of the first limiting surface 111 of the footrest plate 11 and the support rod 14, and the limitation of the third limiting surface 131 of the support rod 14 and the mounting bracket 13, the elastic telescopic rod 15 applies a first force F1 to the footrest bracket 12, so that the footrest bracket 12 receives a counterclockwise rotation force F1 around the first rotation center 16. 逆 , the rotational force F 逆 Under the support of the footrest 11, the footrest plate 11 will not tip over toward the side away from the chair back 20, and the entire footrest device 10 is in a balanced and static state.

[0045] When the foot support device 10 needs to be used, two steps are required. Figure 3 As shown, the first step is to apply a very light pulling force F to the foot support plate 11. 拉 , pull the foot support plate 11 clockwise, and the support rod 14 rotates clockwise around the second rotation center 17 until the support rod 14 abuts against the fourth limiting surface 132 of the mounting bracket 13, and the support rod 14 stops rotating. Figure 4 As shown, the foot support device 10 bears its own weight, and the telescopic end of the elastic telescopic rod 15 is at the first end of the track groove 122, thereby generating a first force F1 on the foot support bracket 12. Under the action of the first force F1, the foot support bracket 12 is subjected to a counterclockwise rotation force F around the first rotation center 16. 逆 , due to F 逆 The rotation force F is much greater than the overall gravity of the foot support plate 11 and the foot support bracket 12, so that the foot support bracket 12 and the foot support plate 11 will not rotate clockwise around the first rotation center 16. 逆 Under the action of the foot support plate 11, the foot support plate 11 rotates counterclockwise until the first limiting surface 111 of the foot support plate 11 abuts against the support rod 14, and the foot support plate 11 stops rotating. At this time, the entire foot support device 10 is in a stationary state. Figure 5 As shown, in the second step, a clockwise turning force F is applied to the footrest 11. 翻 , F 翻 The force F1 provided by the elastic telescopic rod 15 must be greater than the first force F1. At this time, the foot support bracket 12 will lead the foot support plate 11 to rotate clockwise around the first rotation center 16 until the second limit surface 121 of the foot support bracket 12 abuts against the support rod 14. The foot support bracket 12 stops rotating and the foot support plate 11 is in an unfolded state relative to the support rod 14. At this time, the force on the foot support device 10 is as follows: Figure 6As shown, the foot support device 10 bears its own weight. 翻 Under the action of the elastic telescopic rod 15, the telescopic end slides to the second end of the track groove 122 and generates a second force F2 on the foot support bracket 12. The foot support bracket 12 is subjected to a force F rotating clockwise around the first rotation center 16. 顺 , in F 顺 Under the support of and the action of the second limiting surface 121, the footrest 11 is in a stable unfolded state and can be used by the user to rest his feet.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A foot support device, characterized in that: include: Footrests; A foot support bracket, the foot support plate is mounted on the foot support bracket; A mounting bracket, the mounting bracket is located below the footrest bracket, and the mounting bracket is used to be fixed on a chair back or a footrest; as well as A support assembly, the support assembly being connected between the foot support bracket and the mounting bracket, the foot support bracket being capable of flipping between a first position and a second position relative to the support assembly; When the foot support bracket is in the first position, the foot support plate is retracted relative to the support assembly; When the footrest bracket is in the second position, the footrest plate is unfolded relative to the support assembly; The support assembly comprises a support rod and an elastic telescopic rod, one end of the support rod is rotatably connected to the foot support bracket, the rotation center therebetween is a first rotation center, and the other end of the support rod is connected to the mounting bracket; the telescopic end of the elastic telescopic rod is movably connected to the foot support bracket, the action point of the telescopic end of the elastic telescopic rod and the foot support bracket is set away from the first rotation center, the other end of the elastic telescopic rod is rotatably connected to the mounting bracket, and the foot support bracket, the mounting bracket, the support rod and the elastic telescopic rod cooperate with each other to form a quadrilateral linkage mechanism; The footrest plate is provided with a first limiting surface, and when the footrest bracket is in the first position, the support rod is in limiting contact with the first limiting surface to limit the movement of the footrest bracket toward the side close to the chair back; the footrest bracket is provided with a second limiting surface, and when the footrest bracket is in the second position, the support rod is in limiting contact with the second limiting surface to limit the movement of the footrest bracket toward the side away from the chair back; The telescopic end of the elastic telescopic rod is slidably matched with the footrest bracket. When the footrest bracket is in the first position, the elastic telescopic rod applies a first force to the footrest bracket, and the action point of the first force deviates from the first rotation center, so that the footrest bracket maintains a tendency to move toward the side close to the chair back. When the footrest bracket is in the second position, the elastic telescopic rod applies a second force to the footrest bracket, and the action point of the second force deviates from the first rotation center, so that the footrest bracket maintains a tendency to move away from the chair back. The footrest bracket is provided with a track groove, and the track groove is set offset from the rotation center of the footrest bracket. The telescopic end of the elastic telescopic rod is provided with a sliding shaft, and the sliding shaft is slidably matched with the track groove. When the footrest bracket is in the first position, the sliding shaft is limitedly abutted against the first end of the track groove. When the footrest bracket is in the second position, the sliding shaft is limitedly abutted against the second end of the track groove.

2. The foot support device according to claim 1, characterized in that: The support rod is a rigid rod.

3. The foot support device according to claim 1, characterized in that: The support rod is rotatably connected to the mounting bracket, and the mounting bracket is provided with a third limiting surface and a fourth limiting surface on opposite sides corresponding to the support rod, respectively. The third limiting surface and the fourth limiting surface cooperate to limit the rotation angle of the support rod.

4. The foot support device according to claim 3, characterized in that: The third limiting surface is located on a side of the support rod close to the chair back. When the support rod is in limiting contact with the third limiting surface, the axis of the support rod is offset toward the fourth quadrant relative to the vertical direction to form an angle.

5. The foot support device according to claim 1, characterized in that: The elastic telescopic rod adopts a compressed gas spring.

6. The foot support device according to any one of claims 1 to 5, characterized in that: The foot support brackets are connected to opposite sides of the foot support plate respectively, the mounting brackets are correspondingly arranged below each of the foot support brackets, and the supporting components are connected between the corresponding foot support brackets and the mounting brackets.

7. A seat, characterized in that: It comprises a chair back, a footrest arranged on the rear side of the chair back, and a footrest device as claimed in any one of claims 1 to 6, wherein the footrest device is fixed to the chair back or the footrest.

Images