CN216364396U - Pedal device and seat - Google Patents

Abstract

The utility model discloses a pedal device, comprising: the rear pedal support is hinged with the cushion frame, two sliding grooves which are arranged at intervals are arranged on the rear pedal support, and the opposite side walls of the two sliding grooves are respectively and partially provided with a position avoiding opening which extends along the guiding direction of the sliding grooves and is communicated with the sliding grooves; the two opposite sides of the front pedal support respectively penetrate through the different avoidance openings and are in sliding fit with the corresponding sliding grooves; the transmission connecting rod group is arranged between the front pedal support and the rear pedal support and drives the front pedal support to stretch relative to the rear pedal support. The pedal device has the advantages of simple structure, fewer used parts, thinner overall thickness, convenient and reliable installation and lower overall cost of products. The utility model also provides a seat with the pedal device.

Description

Pedal device and seat

Technical Field

The utility model relates to the technical field of furniture seats, in particular to a pedal device and a seat.

Background

With the continuous development of social economy, people have higher and higher requirements on living quality, and the comfort of the seat is also pursued more and more. The common seat is not provided with a pedal device, and when a person sits in the seat and needs to rest, the feet of the person do not support the seat, so that the person feels not relaxed and comfortable. And the use of independent external pedals occupies too much indoor space, and the height of the pedals cannot be well matched with the height of the seat, so that the human body cannot reach the optimal leisure state.

Although some seats are provided with pedal devices with telescopic functions in the market, the pedal devices generally adopt independently purchased slide rails to realize the sliding connection between a pedal bracket and a pedal plate, and the pedal devices have the following defects:

(1) the pedal structure is complex, the number of used parts is large, and the overall cost of the product is high;

(2) the assembly is difficult, more screws are needed for connection and fixation, the time and labor are consumed, and the production efficiency is not improved;

(3) meanwhile, due to the existence of the slide rail structure, the whole size is larger, particularly the whole thickness is larger, and the pedal can occupy larger space when being contracted below the cushion, so that people can feel uncomfortable when pushing against legs in a sitting posture state;

(4) when the seat cushion is applied to the seat, the whole seat cushion looks overstaffed and is not beautiful.

SUMMERY OF THE UTILITY MODEL

In order to overcome at least one of the defects in the prior art, the utility model provides a pedal device which is simple in structure, small in used parts, thin in overall thickness, convenient and reliable to install and low in overall cost.

The technical scheme adopted by the utility model for solving the problems is as follows:

a footrest apparatus comprising:

the rear pedal support is hinged with the cushion frame, two sliding grooves which are arranged at intervals are arranged on the rear pedal support, and the opposite side walls of the two sliding grooves are respectively and partially provided with a position avoiding opening which extends along the guiding direction of the sliding grooves and is communicated with the sliding grooves;

the two opposite sides of the front pedal support respectively penetrate through the different avoidance openings and are in sliding fit with the corresponding sliding grooves;

the transmission connecting rod group is arranged between the front pedal support and the rear pedal support and drives the front pedal support to stretch relative to the rear pedal support.

Furthermore, the front pedal support comprises two vertical sliding rods arranged at intervals and at least one connecting piece connected between the two vertical sliding rods, the vertical sliding rods are in sliding fit and limited in the sliding grooves, and the avoiding openings are used for avoiding the connecting pieces.

Further, the rear pedal support comprises two side plates and two connecting pieces, the two side plates are arranged at intervals, the first connecting pieces of the side plates are connected with one side of each side plate, the inner side of each side plate is connected with a square pipe, the inner cavity of each square pipe forms the sliding groove, and the square pipe is far away from one side of each side plate, the cutting opening is formed in the position avoiding opening.

Furthermore, keep away the position mouth and be located the last corner of square pipe, the connecting piece is connected in the upper limb of vertical slide bar.

Further, the curb plate includes the panel and by the riser that panel one side bending type formed, the riser is located the panel is kept away from preceding one side of stepping on the support, the opposite side of panel is connected square pipe, first connecting piece connect in two between the riser and the bearing in two the below of square pipe.

Further, the inner wall of the sliding groove is provided with a wear-resistant layer.

Further, the wear-resistant layer comprises a Teflon adhesive tape adhered to the inner wall of the sliding groove.

Further, the vertical sliding rod is at least partially wrapped with a wear-resistant layer.

Furthermore, the transmission connecting rod group comprises a first connecting rod, a second connecting rod and a third connecting rod which are sequentially hinged, the other end of the first connecting rod is hinged to the front pedal support, and the middle part of the second connecting rod is hinged to the rear pedal support; the third connecting rod is twisted 90 degrees by rectangular iron sheet and is just including the horizontal part, twist flower portion and the vertical portion that connect gradually, the tip and the second connecting rod of horizontal part are articulated, the tip of vertical portion is provided with and is used for articulating first hinge hole mutually with the cushion frame.

The utility model also provides a seat, which comprises the pedal device.

Because the pedal device has smaller volume, particularly thinner thickness, the whole thickness of the seat can achieve thinner effect after the pedal device is combined and applied to the seat, so that the whole seat looks more integrated and meets the requirements of conciseness and beauty advocated by modern society.

In summary, the pedal device provided by the utility model has the following technical effects:

1) the front pedal support is avoided by the avoiding port, so that the side edge of the front pedal support can be well and directly connected with the sliding groove on the rear pedal support in a sliding manner, the function of limiting the front pedal support to move towards the non-sliding direction is well achieved, the sliding rail structure in the prior art is replaced, the overall structure of the pedal device is simplified, the number of used parts is reduced, and the overall production cost is reduced;

2) the square tube is connected to the inner side of the side plate, and the avoiding port is positioned at the corner of the square tube, so that the height difference between the front pedal bracket and the rear pedal bracket can be controlled to a greater extent, the overall thickness of the pedal device is reduced, and the pedal device is small in occupied space and attractive in appearance;

3) each part has simple structure and convenient production, and is beneficial to shortening the production period and saving the production cost;

4) the integral structure of rear pedal support and front pedal support and the twist structure of the third connecting rod are combined, so that the integral strength of the pedal device is ensured, the number of parts and the integral structure of the pedal device are further reduced, and the integral production cost is reduced.

Drawings

FIG. 1 is a schematic structural view of a pedal device according to embodiment 1 of the present invention;

FIG. 2 is a second schematic structural view of the pedal device shown in embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of the rear footrest in accordance with embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of a front footrest bracket according to embodiment 1 of the present invention;

FIG. 5 is a schematic structural view of a front pedal bracket and a rear pedal bracket in sliding engagement according to embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a third link according to embodiment 1 of the present invention;

FIG. 7 is a schematic diagram of the operation of the transmission linkage assembly according to embodiment 1 of the present invention;

fig. 8 is a schematic structural view of a seat according to embodiment 2 of the present invention;

fig. 9 is an enlarged view of a portion a shown in fig. 8.

Wherein the reference numerals have the following meanings:

1. a foot pedal device; 11. a rear pedal support; 111. a side plate; 1111. a panel; 1112. a vertical plate; 1113. a hinged seat; 1114. a first connecting lug; 1115. a second hinge hole; 1116. a second engaging lug; 1117. hinging a shaft; 112. a first connecting member; 113. a square tube; 1131. a chute; 1132. a position avoiding port; 114. a wear layer; 12. a front pedal support; 121. a vertical slide bar; 122. a second connecting member; 123. a third connecting member; 13. a transmission linkage; 131. a first link; 132. a second link; 133. a third link; 1331. a horizontal portion; 1332. a twist portion; 1333. a vertical portion; 1334. a first hinge hole; 2. a cushion frame; 3. a drive linkage; 4. an armrest assembly; 5. a backrest assembly; 6. a base assembly.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention.

Unless defined otherwise, 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 invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

Referring to fig. 1 to 7, the present invention discloses a pedal device 1, which includes a rear pedal support 11, a front pedal support 12 and a transmission linkage 13, wherein the front pedal support 12 is slidably connected to the rear pedal support 11, and the transmission linkage 13 is disposed between the front pedal support 12 and the rear pedal support 11 to drive the front pedal support 12 to extend and retract relative to the rear pedal support 11.

In this pedal device 1, the rear pedal support 11 is used for articulating with the cushion frame 2 of the seat and is in transmission connection with the drive linkage 3 of the seat, the front pedal support 12 is used for supporting the foot pad, the drive linkage 3 can drive the rear pedal support 11 to rotate relative to the cushion frame 2 for unfolding or retracting, and the transmission linkage 13 can drive the front pedal support 12 to stretch relative to the rear pedal support.

In this embodiment, the rear pedal support 11 is provided with two sliding slots 1131 arranged at an interval, and opposite side walls of the two sliding slots 1131 are respectively partially provided with a position-avoiding opening 1132, and the position-avoiding opening 1132 extends along a guiding direction of the sliding slots 1131 and conducts the sliding slots 1131; the two opposite sides of the front footrest bracket 12 respectively pass through the different seat-avoiding openings 1132 and are slidably engaged with the corresponding slide grooves 1131.

The cross-sectional area of the avoiding opening 1132 is smaller than the cross-sectional area of the side wall of the sliding groove 1131, so that the side edge of the front pedal support 12 can be blocked by the remaining side wall of the sliding groove 1131, the movement of the front pedal support 12 towards the non-sliding direction is limited, the limiting effect on the front pedal support 12 is realized, and the stability of the whole structure of the pedal device 1 is enhanced.

Therefore, the pedal device 1 provided by the utility model utilizes the avoidance port 1132 to avoid the front pedal bracket 12, so that the side edge of the front pedal bracket 12 can be well and directly connected with the sliding groove 1131 on the rear pedal bracket 11 in a sliding manner, and the pedal device has a good function of limiting the front pedal bracket 12 from moving towards the non-sliding direction, replaces a sliding rail structure in the prior art, simplifies the whole structure of the pedal device 1, reduces the number of used parts and reduces the whole production cost.

Referring to fig. 1, 4 and 5, in this embodiment, the front pedal bracket 12 includes two vertical sliding rods 121 disposed at an interval and at least one connecting member connected between the two vertical sliding rods 121, the vertical sliding rods 121 are slidably engaged and limited in the sliding grooves 1131, and the avoiding opening 1132 is used for avoiding the connecting member, and in particular, the connecting member is connected to the upper edge of the vertical sliding rod 121. When the foot pad is used specifically, the bottom of the foot pad can be provided with a step, and the connecting piece is connected below the step of the foot pad, so that the lower surface of the foot pad is higher than the upper surface of the rear pedal bracket 11, and the friction problem caused by the contact of the foot pad and the rear pedal bracket 11 is avoided; or, the connecting piece can be made into a shape with a middle protrusion, so that the upper surface of the middle part of the connecting piece is higher than the upper surface of the rear pedal bracket 11, and the friction problem caused by the contact of the foot pad and the rear pedal bracket 11 can also be avoided.

Preferably, the two connecting pieces between the two vertical sliding rods 121 are respectively a second connecting piece 122 and a third connecting piece 123, wherein the second connecting piece 122 is connected to the front ends of the two vertical sliding rods 121 in a plate shape and is used for hinging the transmission connecting rod group 13, the third connecting piece 123 is also connected to the rear ends of the two vertical sliding rods 121 in a plate shape, and the plate-shaped second connecting piece 122 and the plate-shaped third connecting piece 123 can better support the foot pad. Specifically, the second connecting member 122 and the third connecting member 123 are both welded or integrally connected to the upper edge of the vertical sliding rod 121.

Therefore, by the scheme, the overall weight of the front pedal bracket 12 is effectively reduced, and the production cost is saved; meanwhile, after the whole weight of the front pedal bracket 12 is reduced, the friction force between the front pedal bracket 12 and the rear pedal bracket 11 can be further reduced, and the abrasion is reduced.

Indeed, in another preferred embodiment, the connecting element between the two vertical sliding bars 121 may also be a one-piece support plate, wherein the vertical sliding bars 121 are formed by bending the lateral edges of the support plate.

Referring to fig. 3, in the present embodiment, the rear pedal support 11 includes two side plates 111 disposed at an interval and a first connecting member 112 connecting the two side plates 111, the first connecting member 112 is used to enhance the overall strength of the rear pedal support 11, the inner side of each side plate 111 is connected to a square pipe 113, wherein an inner cavity of the square pipe 113 forms a sliding groove 1131, and one side of the square pipe 113 away from the side plate 111 is opened to form a clearance 1132, so as to form a frame-shaped structure with a hollow-out middle portion, thereby simplifying the overall structure of the rear pedal support 11 and reducing the production cost of the rear pedal support 11.

Preferably, the side plate 111 includes a panel 1111 and a vertical plate 1112 formed by bending one side of the panel 1111, the vertical plate 1112 is located on one side of the panel 1111 far away from the front pedal support 12, the other side of the panel 1111 is fixedly connected with the square tube 113 by welding or screwing, and both ends of the first connecting member 112 are fixed between the two vertical plates 1112 by welding or screwing and supported below the square tube 113. Therefore, the panel 1111 and the vertical plate 1112 form an integral bending structure, the strength of the whole side plate 111 can be enhanced, the integral structure of the rear pedal support 11 is further simplified, and the production and the manufacture are convenient. Preferably, the side plate 111 is made of iron sheet.

Preferably, the face 1111 is planar and the riser 1112 is perpendicular to the face 1111.

Referring to fig. 5, preferably, the avoiding opening 1132 is located at an upper corner of the square pipe 113, and in cooperation with the connection of the connecting piece of the front pedal support 12 to the upper edge of the vertical slide rod 121 (i.e. the second connecting piece 122 and the third connecting piece 123 of this embodiment are both connected to the upper edge of the vertical slide rod 121) and the connection of the square pipe 113 to the inner side of the side plate 111, the height difference between the front pedal support 12 and the rear pedal support 11 can be controlled to a greater extent, so as to reduce the overall thickness of the pedal device 1, and the occupied space is small and beautiful.

It will be appreciated that in order to achieve articulation between the rear footrest brackets 11 and the cushion frame 2 of the seat, and to achieve a drive connection between the rear footrest brackets 11 and the drive linkage 3 of the seat, the side plate 111 further comprises a first attachment lug 1114 for articulating the cushion frame 2 and a second attachment lug 1116 for articulating the drive linkage 3.

Preferably, the first connecting lug 1114 is fixed to the rear end of the riser 1112 by welding, and the first connecting lug 1114 is provided with a second hinge hole 1115; second engaging lug 1116 is fixed to panel 1111 through the welding, and second engaging lug 1116 is located the inboard of first engaging lug 1114 and keeps the clearance with first engaging lug 1114, is provided with articulated shaft 1117 on the second engaging lug 1116, and this articulated shaft 1117 still is connected with first engaging lug 1114 to utilize first engaging lug 1114 and second engaging lug 1116 to cooperate with the intensity of reinforcing articulated shaft 1117.

In addition, the bottom of one of the panels 1111 is further provided with a hinge base 1113 for hinging the transmission linkage 13.

Referring to fig. 5, in order to reduce sliding wear between front pedal bracket 12 and rear pedal bracket 11, wear resistant layer 114 is provided on the inner wall of slide groove 1131. Preferably, the wear-resistant layer 114 includes a teflon tape adhered to the inner wall of the sliding groove 1131, and the problem of large wear between the transverse edge 1211 of the vertical sliding rod 121 and the sliding groove 1131 is solved by using the characteristics of friction reduction, such as adhesion resistance and smooth surface, of the teflon tape; when excessive wear occurs, the bonded Teflon adhesive tape is convenient to replace, so that the maintenance cost is reduced.

In other preferred embodiments, the wear-resistant layer 114 may also be a teflon coating applied to the inner wall of the sliding groove 1131 or a wear-resistant rubber coating applied to the inner wall of the sliding groove 1131, so as to meet the requirements of wear resistance and/or friction reduction.

In other preferred embodiments, the wear-resistant layer 114 may also be disposed on the vertical sliding rod 121, that is, the wear-resistant layer 114 is at least partially wrapped on the vertical sliding rod 121, which is more convenient for pasting or smearing the wear-resistant layer 114 and for later maintenance of the wear-resistant layer 114 than the scheme of disposing the wear-resistant layer 114 on the inner wall of the sliding chute 1131.

Referring to fig. 2, 6 and 7, in the present embodiment, the transmission linkage 13 includes a first link 131, a second link 132 and a third link 133, which are sequentially hinged, the other end of the first link 131 is hinged to the front pedal bracket 12, the middle of the second link 132 is hinged to the rear pedal bracket 11, and the other end of the third link 133 is used for being hinged to the seat cushion frame 2 of the seat, so that when the third link 133 drives the second link 132 to rotate, the second link 132 can drive the first link 131 to move and drive the front pedal bracket 12 to slide and extend relative to the rear pedal bracket 11.

Specifically, one end of the first link 131 is hinged to one end of the second link 132, the other end of the first link 131 is hinged to the middle of the second link 122, the other end of the second link 132 is hinged to one end of the third link 133, the middle of the second link 132 is hinged to the hinge seat 1113 on the panel 1111, and the other end of the third link 133 is used for being hinged to the seat cushion frame 2 of the seat.

In the prior art, the third link 133 is generally connected to the seat cushion frame 2 of the seat through a universal joint structure because the hinge point S2 between the third link 133 and the second link 132 needs to swing about the hinge point S1 between the second link 132 and the rear pedal bracket 11, and the third link 133 needs to have multi-axial rotation to satisfy the driving requirement.

Referring to fig. 6 and 7, the present invention provides another structure of the third link 133, and in particular, the third link 133 is made of an elongated iron piece twisted by 90 degrees and includes a horizontal portion 1331, a twisted portion 1332 and a vertical portion 1333 connected in sequence, an end of the horizontal portion 1331 is hinged to the second link 132, and an end of the vertical portion 1333 is provided with a first hinge hole 1334 for being hinged to the seat cushion frame 2, so that when the hinge point S2 swings around the hinge point S1, a generated twisting force is elastically deformed by the twisted portion 1332 to be received, and a connection structure between the third link 133 and the seat cushion frame 2 can be simplified, thereby further reducing the number of parts and reducing the overall production cost.

In summary, the pedal device 1 provided by the present invention utilizes the avoiding opening 1132 to avoid the front pedal bracket 12, so that the side edge of the front pedal bracket 12 can be directly and well connected with the sliding groove 1131 on the rear pedal bracket 11 in a sliding manner, and has a good function of limiting the front pedal bracket 12 from moving in the non-sliding direction, thereby replacing the sliding rail structure in the prior art, simplifying the overall structure of the pedal device 1, reducing the number of used components, and reducing the overall production cost; the square tube 113 is connected to the inner side of the side plate 111, and the avoiding opening 1132 is positioned at the corner of the square tube 113, so that the height difference between the front pedal bracket 12 and the rear pedal bracket 11 can be controlled to a greater extent, the overall thickness of the pedal device 1 is reduced, and the pedal device occupies a small space and is attractive; the integral structure of the rear pedal bracket 11 and the front pedal bracket 12 and the twisted structure of the third connecting rod 133 are combined, so that the number of parts and the integral structure of the pedal device 1 are further reduced while the integral strength of the pedal device 1 is ensured, and the integral production cost is reduced.

Example 2

Referring to fig. 8 and 9, the present embodiment provides a chair comprising the footrest 1 as described in embodiment 1 or embodiment 2, wherein the footrest 1 occupies a smaller space in the retracted state after the footrest 1 is combined and applied to the chair due to the smaller size, especially the thinner thickness, so as to facilitate the movement of the legs in the sitting posture and enhance the use experience; the whole thickness of the seat can achieve the effect of being thinner, so that the whole seat looks more integrated, and the requirement of conciseness and beauty advocated by modern society is met.

For ease of understanding, the present embodiment provides a specific structure of a seat to which the footrest apparatus 1 as described in embodiment 1 is applied.

Referring to fig. 8, the seat further includes a seat cushion frame 2, a driving linkage 3, an armrest assembly 4, a backrest assembly 5, and a base assembly 6; the base assembly 6 is used for supporting on the ground; the cushion frame 2 is arranged on the base component 6; the driving linkage 3 is disposed on the seat cushion frame 2 and driven by a driving member (not shown in the figure), which may be an electric motor, a manual handle, or the like; one end of the armrest component 4 is hinged to the cushion frame 2 through a pin, and the other end of the armrest component 4 is hinged to the backrest component 5 through a pin; the backrest component 5 is hinged to the rear end of the cushion frame 2 through a pin, and the backrest component 5 is driven by an electric motor to swing back and forth relative to the cushion frame 2.

Referring to fig. 9, the pedal device 1 is hinged to the front end of the cushion frame 2, specifically, the two first engaging lugs 1114 of the rear pedal bracket 11 are respectively hinged to the cushion frame 2 through pins, the two second engaging lugs 1116 of the rear pedal bracket 11 are respectively connected to the cushion frame 2 through hinge shafts 1117, and the vertical portion 1333 of the third connecting rod 133 is hinged to the cushion frame 2 through pins and is adjacent to the inner side of one of the second engaging lugs 1116.

It should be noted that the above description is only for convenience of understanding one of the specific applications of the footrest apparatus 1 shown in embodiment 1 in the seat, and is not intended to limit the specific structure of the components other than the footrest apparatus 1 in the seat.

The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims (10)

1. A footrest apparatus, comprising:

the rear pedal support is hinged with the cushion frame, two sliding grooves which are arranged at intervals are arranged on the rear pedal support, and the opposite side walls of the two sliding grooves are respectively and partially provided with a position avoiding opening which extends along the guiding direction of the sliding grooves and is communicated with the sliding grooves;

the two opposite sides of the front pedal support respectively penetrate through the different avoidance openings and are in sliding fit with the corresponding sliding grooves;

the transmission connecting rod group is arranged between the front pedal support and the rear pedal support and drives the front pedal support to stretch relative to the rear pedal support.

2. The pedaling device as claimed in claim 1, wherein said front pedaling bracket comprises two vertical sliding rods spaced relatively and at least one connecting member connected between said two vertical sliding rods, said vertical sliding rods are slidably engaged and limited in said sliding slots, and said avoiding opening is used for avoiding said connecting member.

3. The pedal device according to claim 2, wherein the rear pedal support comprises two side plates arranged at an interval and a first connecting piece connecting the two side plates, the inner side of each side plate is connected with a square tube, the inner cavity of the square tube forms the sliding groove, and an opening is cut on one side of the square tube away from the side plates to form the position avoiding opening.

4. The pedaling device as claimed in claim 3, wherein said avoiding opening is located at an upper corner of said square tube, and said connecting member is connected to an upper edge of said vertical sliding bar.

5. The pedal device according to claim 3, wherein the side plate includes a panel and a vertical plate formed by bending one side of the panel, the vertical plate is located on one side of the panel away from the front pedal support, the other side of the panel is connected with the square tube, and the first connecting member is connected between the two vertical plates and supported below the two square tubes.

6. Pedal device according to any one of claims 1-5, characterized in that the inner wall of said sliding groove is provided with a wear resistant layer.

7. The footrest apparatus of claim 6 wherein said wear layer comprises Teflon tape adhered to an inner wall of said chute.

8. The footrest apparatus according to any one of claims 2 to 5, wherein the vertical slide bars are at least partially wrapped with a wear layer.

9. The pedaling device according to any one of claims 1-5, wherein said transmission linkage comprises a first link, a second link and a third link hinged in sequence, the other end of said first link is hinged to said front pedal bracket, the middle part of said second link is hinged to said rear pedal bracket; the third connecting rod is twisted 90 degrees by rectangular iron sheet and is just including the horizontal part, twist flower portion and the vertical portion that connect gradually, the tip and the second connecting rod of horizontal part are articulated, the tip of vertical portion is provided with and is used for articulating first hinge hole mutually with the cushion frame.

10. A chair comprising a footrest as claimed in any one of claims 1 to 9.

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