Chair connector and chair unit

Abstract

To provide a chair connector and a chair unit capable of easily connecting chairs arranged side by side at a predetermined interval by the chair connector of a simple configuration without requiring special processing on the chair side, and capable of also improving convenience of the chair to which the chair connector is attached.SOLUTION: A chair connector comprises: a support portion on which a ground plane is formed; a support frame which extends in a vertical direction and whose lower end is fixed to the support portion; and an armrest which extends in a cross direction, and is provided on the upper end of the support frame, the chair connector being arranged on the side of a chair. The support portion is provided with a pair of left and right first coupling portions to which a pair of leg portions extending downward from both left and right ends of a seat portion of the chair is detachably coupled, and the middle portion of the support frame in a vertical direction is provided with a second coupling portion to which the leg portion of the chair disposed on at least one of the left and right sides is coupled.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a chair link and a chair unit. [Background technology]

[0002] Conventionally, when arranging chairs in a multipurpose hall or the like, a connecting mechanism that connects chairs arranged side by side in the left-right direction while ensuring an appropriate space between the chairs has been known. Patent Document 1 discloses a chair set that includes at least two chairs and at least one connecting device, the connecting device having a spacing retaining part that maintains the left-right spacing between the chairs, and connecting parts that are provided on both ends of the spacing retaining part and connected to each of the adjacent chairs.

[0003] Patent document 2 discloses a chair connecting mechanism that includes a pair of fittings, one on each side of the chair, the pair of fittings including a male member with a roughly T-shaped handle portion, and a female member having a vertical groove with an open lower end, and by engaging the male member and female member, two similar chairs can be connected together. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2022-39997 [Patent Document 2] Japanese Patent Publication No. 61-253009 Summary of the Invention [Problem to be solved by the invention]

[0005] According to Patent Document 1, chairs arranged side by side can be connected with a specified distance between them, and a luggage rack can be provided between the chairs. However, the connecting device cannot be installed unless there are chairs on both the left and right ends, which presents a problem in that it cannot be installed on chairs arranged at the ends. According to Patent Document 2, two chairs placed side by side can be connected via the armrests. However, because it is necessary to provide fittings with male and female members on the chair side, the number of parts increases, which raises manufacturing costs, and there is also the issue that connecting and disconnecting the chairs is time-consuming.

[0006] The present invention has been made in consideration of the above-mentioned problems, and its purpose is to provide a chair connector and chair unit which does not require special processing on the chairs, can easily connect chairs lined up side by side at a specified distance using a chair connector of simple configuration, and which also improves the convenience of the chair to which the chair connector is attached. [Means for solving the problem]

[0007] The above object of the present invention can be achieved by the following configuration. (1) a support portion on which a ground contact surface is formed; A support frame extending in the vertical direction and having a lower end fixed to the support portion; An armrest portion extending in the front-rear direction and provided at an upper end of the support frame, A chair connector that can be arranged on the left and right sides of a chair, The support portion is provided with a pair of first connecting portions on the left and right sides to which a pair of legs extending downward from the left and right ends of the seat portion of the chair are detachably connected, A second connecting portion is provided at the vertical midpoint of the support frame to which the leg of at least one of the chairs arranged on the left or right side is connected. Chair connector. Effect of the Invention

[0008] According to the present invention, the chair connector of a simple structure can easily connect chairs arranged side by side without any special processing on the chairs. In addition, since a predetermined distance can be provided between the connected chairs and armrests can be provided, convenience is improved. In addition, the chair connector is configured so that it can be attached to a chair even if there is only a chair on the left or right side. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a front view showing a chair unit in which chairs are connected to each other by a chair connector. [Diagram 2] FIG. 2 is a side view showing a chair unit in which chairs are connected to each other by a chair connector. [Diagram 3] FIG. 3 is a plan view showing a chair unit in which chairs are connected to each other by chair connectors. [Figure 4] FIG. 4 is a rear perspective view showing a chair unit in which chairs are connected to each other by chair connectors. [Diagram 5] FIG. 5 is a cross-sectional view taken along line AA in FIG. [Figure 6] FIG. 6 is a perspective view of the chair connector. [Figure 7] FIG. 7 is a side view of the chair link. [Figure 8] FIG. 8 is a plan view of the chair link. [Figure 9] FIG. 9 is a cross-sectional view taken along line BB of FIG. [Figure 10] FIG. 10 is a cross-sectional view taken along line CC of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, a chair unit to which the chair connector and chairs of the present invention are applied will be described in detail with reference to the drawings. Fig. 1 is a front view showing a chair unit in which chairs are connected to each other by a chair connector. Fig. 2 is a side view showing a chair unit in which chairs are connected to each other by a chair connector. Fig. 3 is a plan view showing a chair unit in which chairs are connected to each other by a chair connector. Fig. 4 is a rear perspective view showing a chair unit in which chairs are connected to each other by a chair connector.

[0011] The chair unit 1 comprises one or more chairs 10, such as stacking chairs that can be stacked for storage, and a chair connector 20 that is arranged on either the left or right side of the chair 10, connected to the chair 10, and provides an armrest 23 on the side of the chair 10. The chair connector 20 detachably connects chairs lined up in the left-right direction, and provides a predetermined gap between the chairs 10, 10 connected by the chair connector 20, and provides the armrest 23. This configuration can be seen in FIG. 1.

[0012] The chair 10 has a seat 11 on which a user sits, legs 12 provided on both the left and right sides of the seat 11 and extending in the vertical direction, and a backrest 13 provided on the upper part of the legs 12 and positioned at the rear and upper side of the seat 11.

[0013] The backrest portion 13 is a plate-like member that extends in the left-right direction and is curved backward toward the center in the left-right direction, and is provided so as to bridge the upper ends of the pair of legs 12, 12. The backrest portion 13 is attached to the upper ends of a pair of legs 12, 12 and has a backrest central portion 13A that supports the user's back by tilting upward and backward, and a backrest lower portion 13B that extends downward from the lower end of the backrest central portion 13A. The backrest lower part 13B extends from substantially directly below so as to incline slightly downward and backward, and in a front view covers the area between the lower end of the backrest central part 13A and the seat part 11. This allows the backrest lower part 13B to support the buttocks and waist of a user sitting with good posture on the seat part.

[0014] The legs 12 are formed by continuously bending a single pipe-shaped member, and a pair of legs 12 are provided on both the left and right sides of the seat 11 to support the seat 11. The leg portion 12 forms, in order from one end, a first backrest support portion 12f, a seat receiving portion 12a, a front leg portion 12b, a lower leg portion 12c, a rear leg portion 12d, and a second backrest support portion 12e. Specifically, the pair of legs 12 extend in the front-to-rear direction and each include a seat support portion 12a that supports the seat portion, a first backrest support portion 12f that extends upward from the rear end of the seat support portion 12a and has the backrest portion 13 attached to its upper end, a front leg portion 12b that extends downward from the front end of the seat support portion 12a, a lower leg portion 12c that extends rearward from the lower end of the front leg portion 12b, a rear leg portion 12d that extends upward from the rear end of the lower leg portion 12c, and a second backrest support portion 12e that extends the rear leg portion 12d above the seat support portion 12a and has the backrest portion 13 attached to its upper end.

[0015] The first backrest support portion 12f and the second backrest support portion 12e are formed so as to overlap in a side view, and both have upper ends connected to the backrest portion 13. This configuration may be seen in FIG. Moreover, the first backrest support portion 12f and the second backrest support portion 12e are inclined forward from their lower ends upward in accordance with the inclination of the backrest portion 13, and then inclined backward. A pair of front and rear simple connectors 15 are attached to the lower leg 12c. The simple connectors 15 will be described later.

[0016] Next, a specific configuration of the chair coupler 20 will be described with reference to Figs. 1 to 8. Fig. 5 is a cross-sectional view taken along line AA in Fig. 1. Fig. 6 is a perspective view of the chair coupler. Fig. 7 is a side view of the chair coupler. Fig. 8 is a plan view of the chair coupler. Fig. 9 is a cross-sectional view taken along line BB in Fig. 2. Fig. 9 is a perspective view showing the connected state of the second connector.

[0017] The chair connector 20 has a support part 21 which is placed on the floor surface on the left and right sides of the chair 10, a support frame 22 which extends in the vertical direction and has its lower end fixed to the support part 21, an armrest part 23 which extends in the front-to-rear direction and is provided at the upper end of the support frame 22, and a cup holder 24 formed in the armrest part 23. A pair of left and right first connecting parts 30 to which the lower legs 12c of the chair 10 are connected are provided on the left and right sides of the support part 21. A second connecting portion 40 is provided on the upper portion of the support frame 22, extending toward one of the left and right sides and connected to the first backrest support portion 12f and the second backrest support portion 12e of the chair 10.

[0018] The support part 21 is formed in a block shape that is long in the front-rear direction, and is provided in the front-rear center of the chair connector 20. A contact surface 21a is formed on the entire underside of the support part 21 for placement between chairs 10, 10 arranged side by side on the left and right. This allows the chair connector 20 to stand independently stably.

[0019] The support frame 22 has a pair of front and rear support frames, a first support frame 22A and a second support frame 22B. The first support frame 22A extends in the vertical direction, with its lower end bent rearward in an L-shape and attached and fixed to the front end of the support part 21. The upper end of the first support frame 22A is attached and fixed to the front lower surface of the armrest part 23. The second support frame 22B extends in the vertical direction, with its lower end bent forward in an L-shape and attached and fixed to the rear end of the support part 21. The upper end of the second support frame 22B is attached and fixed to the rear lower surface of the armrest part 23.

[0020] The support frame 22 may be formed in a U-shape with an open upper portion, and the support portion 21 may be inserted and fixed to a lower end portion (not shown) extending in the front-rear direction. Similarly, the support frame 22 may be formed in a rectangular shape, and the armrest portion 23 may be fitted and fixed to an upper end portion (not shown) extending in the front-rear direction.

[0021] The upper end of the support frame 22 is fixed to the lower surface of the armrest portion 23, which is a plate-like member extending in the front-rear direction so as to bridge between the first support frame 22A and the second support frame 22B. The upper surface of the armrest portion 23 is formed flat so that the user can easily use it as an armrest.

[0022] The cup holder 24 is a cylindrical member with an opening at the top, and is integrally formed with the front end of the armrest portion 23 . The left and right position of the cup holder 24 is located closer to one of the left and right sides (the left side in the illustrated example) than the center of the armrest 23. Therefore, the front end of the armrest 23 is curved to one of the left and right sides. This configuration can be seen in FIG. 7.

[0023] According to this configuration, even when the chair connectors 20 are attached to both the left and right sides of the chair 10 and the cup holders 24 are arranged on both the left and right sides of the chair, the user of the chair 10 can intuitively know which cup holder 24 to use, the left or right one. To explain this in more detail based on the illustrated example, the left-right positions of the cup holders 24 are offset to the left of the center, so that when the user sits on the seat 11 of the chair 10, the cup holder 24 on the right hand side is positioned closer to the user than the cup holder 24 on the left hand side. This allows the user to recognize that the cup holder 24 on the right hand side is his / her own. This configuration can be seen in FIG. 3.

[0024] The first connecting portion 30 has a groove portion 31 into which the lower leg portion 12c of the chair 10 is inserted, and a pressing portion 32 that presses the lower leg portion 12c inserted into the groove portion 31. This configuration may be seen in Figures 6 and 9.

[0025] The grooves 31 are formed by cutting out both side surfaces of the support part 21 inwardly in the left-right direction, so that the grooves 31 extend over the entire side surfaces of the support part 21 in the front-rear direction. The support portion 21 and the groove portion 31 are formed long in the front-rear direction, so that the leg portion 12 of the chair 10 can be held in a more stable state.

[0026] The pressing portion 32 is an elastic member attached to a mounting hole 33 formed in the upper portion of the groove portion 31. The mounting hole 33 is a through hole in the vertical direction formed between the upper surface of the support portion 21 and the upper surface of the groove portion 31, and a protrusion 34 for fixing the pressing portion 32 is formed in the vertical midpoint. The pressing portion 32 has a recess 32a formed in the protrusion 34 of the mounting hole 33, and a pressing surface 32b which is an inclined surface inclined upward toward the inside of the left and right of the groove portion 31 and presses the upper surface of the lower leg portion 12c inserted into the groove portion 31. This configuration may be seen in FIG.

[0027] According to this configuration, when the lower leg 12c of the chair 10 is inserted into the first connecting part 30, the lower leg 12c is automatically clamped obliquely between the inner lower surface of the groove part 31 and the first connecting part 30 by the elastic force of the pressing part 32. Therefore, the leg 12 of the chair 10 can be connected to the first connecting part 30 smoothly and easily. In addition, the leg 12 of the chair 10 can be easily removed by a simple operation of pulling it out of the groove 31 against the elastic force of the pressing portion 32.

[0028] The second connecting portion 40 is a long connecting piece that rotates about the second support frame 22B as an axis. On one longitudinal side of the second connecting portion 40 (the right side in the illustrated example), an attachment hole 41 is formed through which the second support frame 22B is inserted so as to be freely rotatable by being screwed or the like to the upper side of the vertical midpoint of the second support frame 22B. A connecting recess 42 that is cut out toward the front is formed on the rear surface of the other longitudinal side (the left side in the illustrated example) of the second connecting part 40. An elastic member 43 that elastically clamps the leg part 12 that fits into the connecting recess 42 in the left-right direction is provided on the inner surface side of the connecting recess 42. This configuration can be seen in Figures 4 and 10.

[0029] According to this configuration, the right and left legs 12 of the chair 10 on the left side of the chair connector 20 fit into the connecting recess 42, whereby the second connecting part 40 is detachably connected to the legs 12 of the chair 10. Specifically, the connecting recess 42 is formed so that the first backrest support part 12f and the second backrest support part 12e, which are provided side by side on the left and right, can fit into each other at the same time. That is, the second connecting portion 40 is disposed above the seat portion 11 and below the lower end of the backrest central portion 13A. This configuration can be seen in FIG.

[0030] The second connecting part 40 is not limited to the above configuration as long as it is configured to connect the support frame 22 and the upper side of the leg 12 of the chair 10. The second connecting part 40 may be configured to connect the second support frame 22B and the leg 12 of the chair 10 disposed on the right side of the chair coupler 20, or may be configured to be connectable to the legs 12 of the chairs 10 on both the left and right sides of the chair coupler 20.

[0031] Furthermore, the chair 10 to which the above-mentioned chair connector 20 can be connected is not limited to the chair 10 shown in this embodiment as long as it has a front-to-rear member corresponding to the front-to-rear lower leg portion 12c to which the first connecting part 30 can be connected, and a top-to-bottom member corresponding to the first backrest support portion 12f and the second backrest support portion 12e to which the second connecting part 40 can be connected.

[0032] Next, the simple connector 15 attached to the lower leg 12c of the chair 10 will be described with reference to Figs. The simple connector 15 is a member formed in a rectangular parallelepiped shape and attached so as to be inserted into the lower leg 12c, and has a male connector 15A and a female connector 15B. The male connector 15A has convex portions facing outward on the left and right sides. The female connector 15B has concave portions into which the convex portions of the male connector 15A fit. Male couplers 15A are arranged side by side in front and behind on one side, left or right, of chair 10 (right side in the illustrated example), and female couplers 15B are arranged side by side in front and behind on the other side, left or right, of chair 10 (left side in the illustrated example). This configuration can be seen in FIG. 5. When the male connector 15A and the female connector 15B are attached to the lower leg 12c, the lower surfaces of the male connector 15A and the female connector 15B become the ground contact surface 16 of the chair. This configuration can be seen in FIG.

[0033] According to this configuration, by connecting the simple connectors 15, 15 of the chairs 10 arranged side by side, the chairs 10 can be detachably connected to each other without using the chair connector 20. To be more specific, the left and right chairs 10 can be connected by fitting the female connector 15B provided on the left lower leg 12c of the chair 10 arranged on the right side with the male connector 15A provided on the right lower leg 12c of the chair 10 arranged on the left side. In this case, the lower legs 12c of the chairs 10 are connected in close proximity to each other, so there are no gaps between the chairs 10, and no armrests or the like are provided between the chairs 10. A chair connector 20 of this embodiment is detachably attached between the front and rear simple connectors 15, 15 provided on the lower leg portion 12c.

[0034] According to the chair unit described above, the chair coupler 20 can be connected to and disconnected from the chair 10 by a simple operation such as inserting and pulling the leg 12 of the chair 10 into the first connecting part 30 and the second connecting part 40. By connecting the chair coupler 20 to one of the left or right side of the chair 10 (the left side in the illustrated example), the armrest 23 and cup holder 24 are disposed on the side of the chair 10, improving the convenience of the chair 10.

[0035] Furthermore, the chair connector 20 can connect chairs arranged side by side via the first connecting parts 30, 30 provided on both the left and right sides of the support part 21. At this time, a predetermined space is provided between the chairs, and the armrest parts 23 and the cup holders 24 can be arranged in this space. This makes it smooth and easy to arrange the chairs 10 side by side while leaving a predetermined gap between them, and also improves the convenience of the chairs 10.

[0036] Furthermore, because chair connector 20 is connected at least at two locations, that is, the lower end side and upper part of leg 12 of chair 10, by first connector 30 and second connector 40, chair connector 20, which is long in the vertical direction, can be stably and firmly connected to the side of chair 10. In other words, armrest 23 and cup holder 24 provided at the upper end of support frame 22 extending in the vertical direction can also be stably supported.

[0037] 2 and 5, when the first connecting part 30 of the chair connector 20 is connected to the lower leg 12c, the support part 21 is sandwiched in the front-to-rear direction by a pair of simple connectors 15 provided on the lower leg 12c of the chair 10. This makes it possible to restrict the chair connector 20 connected to the chair 10 from shifting in the front-to-rear direction, so that the chair connector 20 can be connected to the side of the chair 10 in a stable and strong configuration.

[0038] In addition, the contact surface 16 on the underside of the simple connector 15 with which the chair 10 touches the ground and the contact surface 21a of the support part 21 with which the chair connector 20 touches the ground are arranged on the same plane so that they come into contact with the ground at the same time when the chair connector 20 is connected to the chair 10. Furthermore, when a user sits on the chair, the support part 21 of the chair connector 20 connected to the chair 10 is pressed downward via the lower leg part 12c of the chair 10. This causes the contact surface 21a of the support part 21 to be pressed against the ground, making the chair connector 20 connected to the chair 10 more stable.

[0039] Furthermore, in a chair unit 1 formed by connecting at least two chairs 10, 10 in the left-right direction via the chair connector 20, the first support frame 22A of the chair connector 20 approximately overlaps with the front leg portion 12b of the chair 10, and the second support frame 22B of the chair connector 20 approximately overlaps with the rear leg portion 12d, the second backrest support portion 12e, and the first backrest support portion 12f of the chair 10 in a side view. This configuration makes it easier to connect the chair connector 20 to the chair 10. In particular, it makes it easier to align the second connecting part 40 with the first backrest support part 12f and the second backrest support part 12e during the connection work. In addition, the appearance of the chair unit 1 is improved. This configuration can be seen in FIG. 2.

[0040] The present invention is not limited to the above-described embodiments, and can be modified and improved as appropriate.

[0041] As described above, the present specification discloses the following: (1) a support portion on which a ground contact surface is formed; A support frame extending in the vertical direction and having a lower end fixed to the support portion; An armrest portion extending in the front-rear direction and provided at an upper end of the support frame, A chair connector that can be arranged on the left and right sides of a chair, The support portion is provided with a pair of first connecting portions on the left and right sides to which a pair of legs extending downward from the left and right ends of the seat portion of the chair are detachably connected, A second connecting portion is provided at the vertical midpoint of the support frame to which the leg of at least one of the chairs arranged on the left or right side is connected. Chair connector. According to this configuration, chairs arranged side by side can be connected with a specified distance by simple operations without special processing on the chair side. In addition, the chair connector is configured so that it can be attached to chairs even if there is only one chair on the left or right, and convenience can be improved by providing armrests on the sides of the attached chair.

[0042] (2) The armrest is provided with a cup holder. 2. A chair connector as described in (1). According to this configuration, the convenience of the chair to which the chair connector is attached is further improved.

[0043] (3) The cup holder is disposed at a front end of the armrest and at a position shifted to one side from the center in the left-right direction. (2) A chair connector as described above. According to this configuration, when the chair connectors are connected to both the left and right sides of the chair, the user of the chair can intuitively know which cup holder to use, the left or right one.

[0044] (4) The armrest portion extends in the front-rear direction so as to bridge the upper ends of the support frames provided at the front end and the rear end of the support portion, A chair connector according to any one of (1) to (3). According to this configuration, the armrest is supported more stably.

[0045] (5) The second connecting portion is connected to the leg portion above the seat portion. A chair connector according to any one of (1) to (4). According to this configuration, the chair connecting portion which is long in the vertical direction is connected to the chair in a more stable manner.

[0046] (6) The leg portion has a lower leg portion extending in the front-rear direction at a lower end thereof, The first connecting portion has a groove portion recessed inwardly in the left and right directions from the left and right ends of the support portion and extending in the front-rear direction, and a pressing portion that elastically presses the lower leg portion inserted into the groove portion. A chair connector according to any one of (1) to (5). According to this configuration, the operation of connecting and disconnecting the first connecting part and the chair becomes easy.

[0047] (7) A chair having a seat portion, a backrest portion, and a pair of legs to which the seat portion and the backrest portion are attached; The chair connector according to any one of (1) to (6) is arranged on the left and right sides of the chair. Chair unit. With this configuration, chairs arranged side by side can be connected with a simple operation while leaving a certain distance between them. The chair connector is also configured so that it can be attached to chairs even when there is only one chair on the left or right side, and convenience can be improved by providing armrests on the sides of the attached chair.

[0048] (8) The leg portion has a lower leg portion extending in the front-rear direction at a lower end thereof, The pair of left and right lower legs are provided with a male connecting portion having a protrusion and a female connecting portion having a recess into which the male connecting portion is fitted, the male connecting portion being arranged in front and behind the support portion, The male connector and the female connector are detachably fitted to the female connector and the male connector provided on the chairs arranged adjacent to each other on the left and right, and have a grounding surface that is grounded simultaneously with the grounding surface of the support part. (7) A chair unit as described in (7). According to this configuration, when the first connector is connected to the front and rear frame parts, the support part is clamped in the front-rear direction between the male connector and the female connector, so that the front-rear movement of the support part is restricted. Therefore, the chair connector connected to the chair is stabilized. In addition, it becomes possible to directly connect chairs to each other without using the chair connector. [Explanation of symbols]

[0049] 1 Chair unit 10 Chairs 11 Seat area 12 Legs 12a Seat support 12b Front leg 12c lower leg 12d Hind leg 12e Second backrest support 12f 1st backrest support 13 Backrest 13A Center of backrest 13B Lower backrest 15 Simple connector 15A male coupling 15B Female connector 16 Ground plane 21 Support part 21a Ground plane 20 Chair connector 22 Support frame 22A First Support Frame 22B Second support frame 23 Armrest 24 Cup holder 30 1st connection part 31 Groove 32 Pressing section 32a Recess 32b Pressing surface 33 Mounting hole 34 Convex 40 2nd connection part 41 Mounting hole 42 Connection recess

Claims

1. A support portion on which a ground contact surface is formed; A support frame extending in the vertical direction and having a lower end fixed to the support portion; An armrest portion extending in the front-rear direction and provided at an upper end of the support frame, A chair connector that can be arranged on the left and right sides of a chair, The support portion is provided with a pair of first connecting portions on the left and right sides to which a pair of legs extending downward from the left and right ends of the seat portion of the chair are detachably connected, A second connecting portion is provided at a vertical midpoint of the support frame to which the leg of at least one of the chairs arranged on the left or right side is connected. Chair connector.

2. A cup holder is provided in the armrest.

2. The chair link of claim 1.

3. The cup holder is disposed at a front end of the armrest and at a position closer to one side than the center in the left-right direction.

3. The chair link of claim 2.

4. The armrest portion extends in the front-rear direction so as to bridge the upper ends of the support frames provided at the front end and the rear end of the support portion, 2. The chair link of claim 1.

5. The second connecting portion is connected to the leg portion above the seat portion.

2. The chair link of claim 1.

6. The leg portion has a lower leg portion extending in the front-rear direction at a lower end thereof, The first connecting portion has a groove portion recessed inwardly in the left and right directions from the left and right ends of the support portion and extending in the front-rear direction, and a pressing portion that elastically presses the lower leg portion inserted into the groove portion.

2. The chair link of claim 1.

7. A chair having a seat portion, a backrest portion, and a pair of legs to which the seat portion and the backrest portion are attached; and the chair connector according to claim 1, which is arranged on the left and right sides of the chair. Chair unit.

8. The leg portion has a lower leg portion extending in the front-rear direction at a lower end thereof, The pair of left and right lower legs are provided with a male connecting portion having a protrusion and a female connecting portion having a recess into which the male connecting portion is fitted, the male connecting portion being arranged in front and behind the support portion, The male connector and the female connector are detachably fitted to the female connector and the male connector provided on the chairs arranged adjacent to each other on the left and right, and have a grounding surface that is grounded simultaneously with the grounding surface of the support part. A chair unit according to claim 7.

Images