JP2016116645A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair facilitating routing of a wire extending from a connector even when a position of fitting the connector to a backrest part is adjusted in the horizontal direction.SOLUTION: A chair 1 includes: leg parts 10 of which lower ends are grounded on a floor surface; a seat part 20 provided on the leg parts 10 and supported by the leg parts 10 so as to be located on the upper side of the floor surface; a backrest part 40 provided at upper ends of the leg parts 10; and a duct part 60 in which the wire 74 can be inserted and that is provided at the rear side of the upper ends of the leg parts 10 so as to extend in the horizontal direction Y.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a chair used in an office or a hospital.

  Conventionally, chairs are installed in offices, hospitals, etc., and are used by users to take breaks. As this type of chair, for example, a chair described in Patent Document 1 is known.

A chair that is a seat for a standing posture of Patent Document 1 includes a rod-shaped seat portion, a rod-shaped support portion that is substantially parallel to the seat portion and positioned above and rearward by a predetermined dimension, and the seat portion and the support portion. And a frame portion for supporting. The seat portion has a structure that can be overturned, and a handle member is stretched over the frame portion above the support portion.
The frame portion includes a connecting member that supports a seat portion, a support portion, and the like, and a leg member. The lower end of the leg member is fixed to the floor surface by a floor mounting member, and the side portion of the leg member is fixed to the side wall by a wall mounting member via a seat mounting rail or the like. That is, this frame part is supported in a cantilever state using the floor and the wall.

Therefore, the seat part of this chair can be rotated and seated in a substantially upright posture using the seat part and the support part. The support part and the handle member constitute a backrest part, and the user can lean the back on the backrest part.
A person in the vicinity of the chair can put his hand or elbow on the chair member of the chair.

Japanese Patent No. 3586300

In addition, an increasing number of people carry portable electronic devices. It is desired to connect the electronic device to a power or communication connector unit to secure the power source of the electronic device or to communicate with an external device. When providing a connector part in a chair like patent document 1, providing a connector part in the upper end part of a backrest part is examined so that a connector part may be conspicuous from the user who sat in the chair.
In the design stage or use stage of the chair, the position where the connector part is attached to the backrest part may be adjusted in the left-right direction so that it is easy for the user to use. However, since the wiring is connected to the connector portion, it takes a lot of labor to examine the wiring routing method every time the position where the connector portion is attached is adjusted.

  The present invention has been made in view of such problems, and provides a chair in which the wiring extending from the connector portion can be easily routed even if the position of attaching the connector portion to the backrest portion is adjusted in the left-right direction. For the purpose.

In order to solve the above problems, the present invention proposes the following means.
The chair of the present invention includes a leg portion whose lower end is in contact with the floor surface, a seat portion provided on the leg portion and supported by the leg portion so as to be above the floor surface, and the leg portion. A backrest portion provided at an upper end portion of the portion, and a duct portion through which wiring can be inserted and provided so as to extend in the left-right direction behind the upper end portion of the leg portion. It is characterized by.
According to the present invention, the duct portion is provided near the position where the connector portion is attached, and the duct portion extends in the left-right direction. Therefore, even if the position for attaching the connector portion is adjusted in the left-right direction, the wiring can be easily routed in the left-right direction by inserting the wiring into the duct portion.

Further, in the above-mentioned chair, a pair of the leg portions are provided in a state of being separated in the left-right direction, the leg portions have leg main bodies extending in the up-down direction, and the backrest portion is forward of the leg main body. A back support portion disposed, and an elbow support portion extending rearward from the upper end portion of the back support portion above the leg main body, the rear end portion of the elbow support portion being The duct portion extends rearward from the leg main body, and the duct portion is provided at an upper end of the leg main body and is rearward of a connection member that joins the pair of leg portions and is lower than the elbow receiving portion. It is more preferable that it is provided.
According to this invention, the force which pushes the backrest part is supported by the connecting member, and this force can be suppressed from acting on the duct part. It is possible to arrange the duct portion in the vicinity of the backrest portion in a compact manner while suppressing an increase in the outer shape of the chair.

Moreover, in the above chair, it is more preferable to include a connector portion to which wiring is connected and attached to an upper end portion of the backrest portion.
According to the present invention, work for connecting an external terminal such as a plug to the connector portion can be performed at a position close to the face of the user sitting on the chair, so workability is improved.

In the chair described above, the height of the upper end portion of the connector portion is more preferably substantially equal to the height of the upper end portion of the backrest portion.
According to the present invention, the connector portion is easily visible from the backrest portion, and the work of connecting the external terminal to the connector portion is easy.

In the chair described above, the length in the vertical direction from the lower end portion of the leg portion to the upper end portion of the backrest portion is the upper end portion of the seat portion from the lower end portion of the leg portion. It is more preferable that it is not more than twice the length in the vertical direction.
According to the present invention, since the chair is suitable for sitting on the seat for a short time, more users can use it within a certain time, and the user rotation rate of the chair can be increased.

In the chair described above, it is more preferable that the backrest portion protrudes rearward than the lower end portion of the leg portion.
According to this invention, when the backrest portion is brought into contact with the wall surface, it is possible to suppress the lower end portion of the leg portion from interfering with the lower end portion of the R baseboard provided at the lower portion of the wall surface.

In the chair described above, it is more preferable that the leg portion is provided with a wiring cover through which the wiring can be inserted and extending to the lower end of the leg portion along the leg portion. .
According to the present invention, the wiring can be routed inside the wiring cover to near the floor surface.

  According to the chair of the present invention, the wiring extending from the connector portion can be easily routed even if the position where the connector portion is attached to the backrest portion is adjusted in the left-right direction.

It is a perspective view of the chair of one embodiment of the present invention. It is a side view of the chair. It is the rear view which attached the wiring cover to the leg main part of the chair. It is sectional drawing of the principal part in FIG. It is sectional drawing of the side surface of the chair. It is the figure which fractured | ruptured a part of front of the chair. It is sectional drawing of the side surface of the principal part of the chair. It is a perspective view of the connector part periphery of the chair. It is a perspective view which shows the state which the user is using the chair. It is sectional drawing of the principal part of the chair of embodiment of the modification of this invention.

Hereinafter, an embodiment of a chair according to the present invention will be described with reference to FIGS. 1 to 9 by taking as an example a case where the chair is a so-called high seat bench. The high seat bench is a chair having a relatively high seat portion and a relatively short length from the upper portion of the seat portion to the upper portion of the backrest portion.
As shown in FIGS. 1 and 2, the chair 1 according to the present embodiment includes a pair of legs 10 whose lower ends are grounded to the floor G, a seat 20 provided on the legs 10, and legs 10. A backrest portion 40 provided at an upper end portion of the leg portion 10, a duct portion 60 provided behind an upper end portion of the leg portion 10, and a connector portion 70 attached to the backrest portion 40.

The leg 10 includes a rod-like leg main body 11 that extends in the vertical direction Z including the lower and upper sides, and a leg support 12 that is joined to the lower end of the leg main body 11 and extends in the front-rear direction X orthogonal to the vertical Z. And have. One direction in the front-rear direction X is the front, and the other direction is the rear.
For the leg main body 11 and the leg support part 12, for example, a rectangular tubular steel pipe having a rectangular cross section can be suitably used. The leg main body 11 is joined to the rear end of the leg support 12 by welding or the like. On the bottom surface of the front end portion and the bottom surface of the rear end portion of the leg support portion 12, an adjuster 13 having a contact surface 13a in contact with the floor surface G is attached.
Protective members 12a are attached to the front and rear surfaces of the leg support 12 to prevent damage when the leg support 12 hits a wall surface or the like. The protection member 12a can be formed of resin, rubber, or the like.
The pair of leg portions 10 are arranged in a state of being separated in the left-right direction Y.

As shown in FIGS. 3 and 4, a wiring cover 14 is provided on the rear surface of each leg body 11. The wiring cover 14 has a cover body 15 formed in a U shape when viewed in the vertical direction Z, and a recess 16 formed in the cover body 15 so as to be recessed toward the leg body 11.
The cover body 15 extends along the leg body 11 to the lower end of the leg body 11. A wiring 74 described later of the connector part 70 can be inserted into the cover body 15. A pair of recesses 16 are formed in the cover main body 15 with an interval in the vertical direction Z. A known dharma hole 16 a is formed at the bottom of the recess 16. The cover body 15 can be formed of, for example, a steel plate or resin.

A felt or a grommet may be attached to the inner surface through which the wiring 74 is inserted at the lower end of the cover body 15 to prevent the wiring 74 taken out from the cover body 15 from being damaged.
The cover main body 15 is inserted into the wide portion of the Dalma hole 16a of the recess 16 with the bolt 17 attached to the leg main body 11, and the head of the bolt 17 is engaged with the narrow portion of the Dalma hole 16a. It is attached to the body 11.

As shown in FIGS. 5 and 6, the seat portion 20 has a frame portion 21 fixed between the pair of leg portions 10 and a cushion portion 22 attached to the frame portion 21.
The frame portion 21 includes left and right frames 24 extending in the left-right direction Y and front and rear frames 26 and 27 extending forward from the left and right frames 24, and is formed in a comb-like shape as a whole.
The left and right frames 24 can be formed using the aforementioned steel pipe. The left and right frames 24 are disposed between the leg main bodies 11 of the pair of leg portions 10, and each end is joined to the leg main body 11 by welding or the like.
The front and rear frame 26 is configured by attaching flanges 29 and 30 to the upper and lower ends of the web 28. The flange 29 is formed with a through hole (not shown) penetrating in the vertical direction.
The front and rear frames 27 are formed in a U shape when viewed in the front and rear direction X, and are attached to both ends of the left and right frames 24. The front and rear frames 26 and 27 are made of, for example, steel plates, and are joined to the left and right frames 24 by welding or the like.

The cushion portion 22 includes a plywood 32, a hard cushion layer 33 disposed on the plywood 32, and a soft cushion layer 34 disposed on the hard cushion layer 33.
The plywood 32 is obtained by stacking a plurality of single plates so that the fiber directions are staggered. The plywood 32 is formed in a plate shape extending in a direction substantially perpendicular to the vertical direction Z, and a recess 32a is formed at the center of the lower surface. A nut (not shown) is embedded in the plywood 32. As the hard cushion layer 33 and the soft cushion layer 34, for example, chip urethane and foamed urethane can be used, respectively. Although not shown, the front surface, the upper surface, and the rear surface of the cushion portion 22 have a waterproof property and are covered with a highly designable cover. The hard cushion layer 33 is disposed above the plywood 32, and the soft cushion layer 34 is disposed above the hard cushion layer 33. In this embodiment, the cushion part 22 is divided | segmented into three in the left-right direction Y (refer FIG. 1).

The cushion portion 22 is attached above the frame portion 21 by engaging the screw portion of the bolt 36 inserted through the through hole of the flange 29 with the nut of the plywood 32.
The front and rear frames 27 support the cushion portion 22 from below.
The seat portion 20 configured in this manner is such that the left and right frames 24 are joined to the leg body 11 so that the leg portion 10 is positioned above the floor surface G when placed on the floor surface G. Supported.

As shown in FIGS. 5 and 7, the backrest portion 40 has a connection frame (connection member) 41 joined to an upper end portion of the leg main body 11 of the leg portion 10, and the leg main body 11 of the leg portion 10. A back receiving portion 42 disposed in the front, an elbow receiving portion 43 extending rearward from the upper end portion of the back receiving portion 42 and above the leg main body 11, and a lid portion 44 covering the duct portion 60. Have.
The connection frame 41 can be formed using the above-described steel pipe and extends in the left-right direction Y. The connection frame 41 joins the leg body 11 of each leg 10. A through hole (not shown) is formed in the connection frame 41.

  The back support portion 42 includes a plywood 47 and a hard cushion layer 48 disposed on the plywood 47. The front surface 48a of the hard cushion layer 48 is a slope that is inclined so as to go backward as it goes upward. The plywood 47 and the hard cushion layer 48 can be formed of the same material as the above-described plywood 32 and the hard cushion layer 33, respectively. The hard cushion layer 48 is disposed in front of the plywood 47.

The elbow support portion 43 includes a plywood 51 and a hard cushion layer 52 disposed on the plywood 51. The upper surface 52 a of the hard cushion layer 52 is a flat surface extending in the front-rear direction X and the left-right direction Y. The plywood 51 and the hard cushion layer 52 can be formed of the same material as the above-described plywood 32 and the hard cushion layer 33, respectively. The hard cushion layer 52 is disposed above the plywood 51.
Nuts (not shown) are embedded in the plywood 51 and the plywood 47 described above. In this embodiment, the back support part 42 and the elbow support part 43 are divided into three in the left-right direction Y (see FIG. 1).
Thus, the backrest part 40 has a two-layer structure including the plywoods 47 and 51 and the hard cushion layers 48 and 52.

  As shown in FIG. 8, a notch 43 a is formed at the end in the left-right direction Y of the elbow support portion 43 and at the rear end. A connector portion 70 is attached to a portion where the notches 43a of the elbow receiving portions 43 adjacent to each other in the left-right direction Y are continuous, as will be described later. 5 is a cross-sectional view of a portion of the duct portion 60 where the notch 43a of the elbow receiving portion 43 is not formed, and FIG. 7 is a view of the notch 43a of the elbow receiving portion 43 in the duct portion 60 formed. It is sectional drawing in a part.

As shown in FIGS. 7 and 8, the lid 44 includes a lid main body 55 having an opening 55 a formed in the center, and a flange formed by bending the rear end of the lid main body 55 downward into a U shape. Part 56. A stepped portion 55b is formed at the edge of the opening 55a by being stepped downward.
The lid 44 is joined to a later-described reinforcing member 64 of the duct 60 by screws or welding.

As shown in FIGS. 5 and 7, the duct portion 60 includes a bottom plate 61 joined to the lower surface of the connection frame 41 and a back plate 62 extending upward from a rear end portion of the bottom plate 61. The back plate 62 is disposed behind the connection frame 41. The bottom plate 61 and the back plate 62 are integrally formed, for example, by pressing a steel plate.
The bottom plate 61 and the back plate 62 extend in the left-right direction Y. The connection frame 41 and the duct part 60 form an opening 60 a in the upper part of the duct part 60.

As shown in FIGS. 5 and 8, one arm portion 64 a of an L-shaped reinforcing member 64 is joined to the rear surface of the connection frame 41. A through hole 64 c that penetrates in the vertical direction Z is formed in the other arm portion 64 b of the reinforcing member 64.
By engaging the screw portions of the bolts 66 inserted through the through holes of the connection frame 41 and the through holes 64c of the reinforcing member 64 with the nuts of the plywoods 47 and 51, the connection frame 41 and the reinforcing member 64 are connected to the back support portion 42, An elbow support 43 is attached.
In this manner, the opening 60 a in the portion where the notch 43 a is not formed in the elbow receiving portion 43 is covered with the elbow receiving portion 43. The wiring 74 is inserted into the duct portion 60.
Thus, the duct part 60 extends in the left-right direction Y. The duct portion 60 is provided behind the upper end of the leg main body 11, more specifically, behind the connection frame 41 and below the elbow receiving portion 43.

As shown in FIG. 2, in the chair 1 that is a high seat bench, the rear end portion of the elbow receiving portion 43 extends rearward from the leg main body 11 of the leg portion 10. (End of the lower leg portion 10, the rear surface of the protection member 12a) the rear end of the leg support 12 of the leg portion 10 toward the elbow receiving portion 43 of the backrest 40 than protrudes length L ₁ to the rear Yes.
The backrest portion 40 projects upward from the seat portion 20. The seat 20 protrudes forward from the backrest 40. The length L ₂ in the vertical direction Z from the lower end of the leg 10 to the upper end of the backrest 40 is the vertical direction from the lower end of the leg 10 to the upper end of the seat 20. Z of more than 2 times the length _{L 3.} More specifically, the length _{L 2} to the end of the upper backrest portion 40 is preferably 750Mm～1000mm, above the length _{L 3} to the end of the seat portion 20 500mm~700mm is preferred.

As shown in FIGS. 7 and 8, the connector portion 70 has a case 71 that is formed in a box shape and opens on one surface. A flange 72 is formed on the outer peripheral surface surrounding the opening of the case 71. A known outlet unit 73 having a pair of outlets 73 a is disposed in the case 71. The outlet 73a is disposed on the upper surface of the outlet unit 73 and is exposed to the outside. A wiring 74 is connected to the outlet unit 73. A plug (not shown) is provided at the end of the wiring 74 opposite to the outlet unit 73.
Between the case 71 and the outlet unit 73, a cover (not shown) having a known configuration that can protrude from the case 71 is disposed.
This cover does not cover the outlet 73 a of the outlet unit 73 when housed in the case 71. On the other hand, the outlet 73a can be covered with the cover by protruding the cover from the case 71 and rotating it around the rotation axis of the end of the cover.

The connector portion 70 is attached to the lid portion 44 by screwing or claw fitting or the like in a state where the flange 72 of the case 71 is engaged with the step portion 55b of the lid portion 44. The outlet 73 a is disposed on the upper surface of the connector unit 70. The height of the upper end of the connector portion 70, that is, the height of the surface on which the outlet 73a is provided is substantially equal to (including the same as) the height of the upper surface 52a that is the upper end of the backrest portion 40.
In this manner, the opening 60 a in the portion where the notch 43 a is formed in the elbow receiving portion 43 is covered with the lid portion 44 and the connector portion 70.

  As described above, the connector portion 70 is attached to the upper end portion of the backrest portion 40 and in the vicinity of the duct portion 60. The wiring 74 of the connector part 70 is routed to the end part in the left-right direction Y of the chair 1 by being inserted through the duct part 60. By being inserted through the wiring cover 14, it is drawn from the duct portion 60 to the lower end portion of the chair 1.

When manufacturing the chair 1 configured as described above, for example, after the wiring 74 is inserted through the duct portion 60, the connector portion 70 is attached to the lid portion 44. Even if the position where the connector portion 70 is attached is shifted in the left-right direction Y, the duct portion 60 extends in the left-right direction Y. Therefore, it is easy to route the wiring 74 in the left-right direction Y from the position where the connector portion 70 is shifted.
Before attaching the wiring cover 14 to the leg main body 11, the wiring 74 is inserted into the wiring cover 14. The dull hole 16 a of the wiring cover 14 is engaged with the bolt 17 of the wiring cover 14, and the wiring cover 14 is attached to the leg body 11.

The chair 1, which is a high seat bench configured as described above, is installed, for example, in a waiting room of a hospital. A plug of the wiring 74 is inserted into a connector device (not shown) provided on the floor G in the room. Since the wiring 74 is drawn to the lower part of the chair 1 by the duct part 60 and the wiring cover 14, the length of the wiring 74 exposed outside becomes short.
In the waiting room, as shown in the enlarged view in FIG. 2, an R baseboard W10 may be provided at a connection portion between the floor surface G and the wall surface W so that dust and dirt do not collect.
Even in this case, be longer than the length L ₁ of the elbow receiving portion 43 to the rear than the leg support 12 of the aforementioned projected width R skirting W10 (length projecting from the wall surface W) When the elbow support portion 43 comes into contact with the wall surface W, the leg support portion 12 is less likely to interfere with the lower end portion of the R baseboard W10.

As shown in FIG. 9, the user P hangs his / her waist P <b> 1 on the seat 20 of the chair 1, leans his / her back P <b> 2 on the front surface 48 a of the back support 42 of the backrest 40, and touches the upper surface 52 a of the elbow support 43. Put on elbow P3. The force by which the user P pushes the front surface 48a or the upper surface 52a of the backrest portion 40 is supported by the connection frame 41 to which the backrest portion 40 is attached. Since the upper surface 52a of the elbow receiving portion 43 is a flat surface extending in the front-rear direction X and the left-right direction Y, the reaction force received from the elbow receiving portion 43 acts on the elbow P3 in a planar manner when the elbow is placed on the upper surface 52a. .
Since the user P is seated in a substantially standing posture, the time for the user P to hang the waist P1 on the seat 20 is relatively short.
The user P inserts a plug of an electronic device (not shown) into the outlet 73a of the connector unit 70 of the chair 1, and supplies power to the electronic device. Since the connector part 70 is attached to the upper end of the backrest part 40, the distance between the connector part 70 and the face of the user P who puts the waist P1 on the seat part 20 is relatively short.
At this time, since the wiring 74 is inserted and drawn around the wiring cover 14 or the like, when the user P uses the seat portion 20, the backrest portion 40, and the connector portion 70 of the chair 1, the wiring 74 is obstructed. Don't be.
When the connector unit 70 is not used, the cover is pulled out from the case 71 and the outlet 73a is covered with the cover.

As described above, according to the chair 1 of the present embodiment, the duct portion 60 is provided near the position where the connector portion 70 is attached, and the duct portion 60 extends in the left-right direction Y. Therefore, even if the position where the connector portion 70 is attached is adjusted in the left-right direction Y, the wiring 74 can be inserted through the duct portion 60 and easily routed in the left-right direction Y.
The duct part 60 is provided behind the connection frame 41 and below the elbow support part 43. Thereby, the force which presses the backrest part 40 is supported by the connection frame 41 and the leg part 10, and it can suppress that this force acts on the duct part 60. FIG. It is possible to arrange the duct portion 60 close to the backrest portion 40 in a compact manner while suppressing an increase in the outer shape of the chair 1.

Since the connector part 70 is attached to the upper end part of the backrest part 40, the work for connecting the plug to the connector part 70 can be performed at a position close to the face of the user P sitting on the chair 1, and the workability is improved.
The height of the surface on which the outlet 73 a is provided is substantially equal to the height of the upper surface 52 a of the backrest portion 40. Therefore, the connector part 70 is easily visible from the backrest part 40, and the work of connecting the plug to the connector part 70 is easy.
The length L ₂ in the vertical direction Z from the lower end of the leg 10 to the upper end of the backrest 40 is the vertical direction from the lower end of the leg 10 to the upper end of the seat 20. Z of more than 2 times the length _{L 3.} Thereby, since it is the chair 1 suitable for hanging the seat part 20 for the waist P1 for a short time, many users P can be used within a fixed time, and the user rotation rate of the chair 1 can be raised.

Towards the backrest 40 from the end portion of the lower leg portion 10, and protruding length L ₁ to the rear. Thereby, when the backrest part 40 is made to contact the wall surface W, it can suppress that the lower edge part of the leg part 10 interferes with the lower edge part of the R baseboard W10.
Since the wiring cover 14 is provided on the leg portion 10, the wiring 74 can be routed inside the wiring cover 14 to near the floor surface G. When a connector device that supplies power to the connector unit 70 is provided on the floor G, the length of the wiring 74 exposed to the outside can be shortened.
By providing the connector portion 70 with a cover, it is possible to suppress dust and dirt from adhering to the outlet 73a.

As mentioned above, although one embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and modifications, combinations, and deletions within a scope that does not depart from the gist of the present invention. Etc. are also included. Furthermore, it goes without saying that the configurations shown in the embodiments can be used in appropriate combinations.
For example, in the said embodiment, as shown in FIG. 10, you may comprise so that the chair 1A may not be provided with the elbow support part 43 with respect to each structure of the chair 1 of the said embodiment. In this case, the opening 60 a of the duct portion 60 is covered with a lid portion 81 attached to the reinforcing member 64.

In the said embodiment, while the frame part 21 of the seat part 20 of the chair 1 was formed in the comb-tooth shape, it was supposed that the backrest part 40 was a 2 layer structure. However, the configuration of the frame portion and the backrest portion is not limited to this. For example, the frame portion includes the left and right frames 24 described above, a second left and right frame disposed in front of the left and right frames 24, and a pair of front and rear frames respectively joined to end portions of the left and right frames 24 and the second left and right frames. Therefore, it may be formed in a rectangular shape as a whole.
The back support portion 42 of the backrest portion may include a soft cushion layer disposed on the hard cushion layer 48, and the elbow support portion 43 may include a soft cushion layer disposed on the hard cushion layer 52. In this case, the backrest portion has a three-layer structure including plywoods 47 and 51, hard cushion layers 48 and 52, and a soft cushion layer.

Although the chair is a high seat bench, it may be a normal chair in which the height of the upper end portion of the backrest portion is higher than twice the height of the upper end portion of the seat portion.
In the first embodiment and the second embodiment, the connector unit 70 has the outlet 73a. However, the connector unit may include a communication connector such as a LAN (Local Area Network) connector or a USB (Universal Serial Bus) connector.
Instead of the plug, a photovoltaic power generation panel, a rechargeable battery, a wireless power feeding device, or the like may be connected to the end of the wiring 74 opposite to the connector portion 70. By comprising in this way, electric power can be supplied to the electronic device connected to the connector part 70, without connecting the chair of this invention to a connector apparatus.

DESCRIPTION OF SYMBOLS 1, 1A Chair 10 Leg part 11 Leg main body 14 Wiring cover 20 Seat part 40 Backrest part 41 Connection frame (connection member)
42 back receiving portion 43 elbow receiving portion 60 duct portion 70 connector 74 line G floor L _{2, L 3} length Y lateral direction Z vertical direction

Claims (7)

A leg whose lower end is in contact with the floor;
A seat provided on the leg and supported by the leg so as to be above the floor surface;
A backrest provided at an upper end of the leg,
A duct portion that can be inserted through the interior and that extends in the left-right direction behind the upper end portion of the leg portion;
A chair characterized by comprising: A pair of the legs are provided in a state separated in the left-right direction,
The leg portion has a leg main body extending in the vertical direction,
The backrest part is
A back support disposed in front of the leg body;
An elbow support that extends rearward from the upper end of the back support through the upper part of the leg body, and
The rear end of the elbow support extends rearward from the leg body,
The duct portion is provided at an upper end portion of the leg main body, and is provided behind the connecting member that joins the pair of leg portions and below the elbow receiving portion. The chair according to claim 1.   The chair according to claim 1 or 2, further comprising a connector portion to which wiring is connected and attached to an upper end portion of the backrest portion.   The chair according to claim 3, wherein a height of an upper end portion of the connector portion is substantially equal to a height of an upper end portion of the backrest portion.   The vertical length from the lower end portion of the leg portion to the upper end portion of the backrest portion is the vertical length from the lower end portion of the leg portion to the upper end portion of the seat portion. The chair according to any one of claims 1 to 4, wherein the chair is two times or less.   The chair according to any one of claims 1 to 5, wherein the backrest part protrudes rearward from the lower end part of the leg part.   7. The leg portion is provided with a wiring cover through which the wiring can be inserted, and extending to the lower end of the leg portion along the leg portion. The chair as described in any one.

Images