Chair

Abstract

To provide a chair capable of enhancing maintenance property while suppressing damage of an outer appearance.SOLUTION: A chair 1A includes: a plurality of leg support members 21 arranged on an arrangement surface F and provided by separation in a horizontal direction; a connection member 22 extending in the horizontal direction so as to connect the leg support members 21 being adjacent in the horizontal direction; a seat member supported from below by the connection member 22 and having a seat surface on which a user sits; an electric component unit 31 having an electric output part 32 arranged on an upper side of the connection member 22; and a wiring storage member 35 which is extending in the horizontal direction in a state where at least a part in the vertical direction is overlapped with the connection member 22 on one side of a front part and a rear part of the connection member 22 when viewed from the other side of the front part and the rear part, and also which has a storage space 35s for storing wiring 100 to be led out downward from the electric component unit 31.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a chair.

Background Art

[0002] For example, Patent Document 1 discloses a chair including a pair of support legs provided on a floor surface, a longitudinally long connecting portion in the width direction connecting the pair of support legs, a seat portion supported by the connecting portion, and a power supply unit that supplies power to the outside. In this chair, the wiring connected to the power supply unit is housed in the connecting portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the connecting portion in which the wiring is housed forms part of the structure that supports the seat portion of the chair. Therefore, when performing maintenance or the like on the wiring housed in the connecting portion, the seat portion has to be removed from the connecting portion, which is troublesome. On the other hand, if importance is attached to maintainability and the wiring is not housed in the connecting portion but is arranged, for example, along the connecting portion below the seat portion, the wiring is exposed to the outside and the appearance of the chair is impaired. An object of the present invention is to provide a chair capable of enhancing maintainability while suppressing impairment of the appearance.

Means for Solving the Problems

[0005] In order to solve the above problems, the present invention adopts the following aspects. (1) The chair according to one aspect of the present invention includes a lower structure provided on an installation surface, a plurality of support leg members provided at intervals in the left-right direction, and a connecting member extending in the left-right direction and connecting the adjacent support leg members in the left-right direction, a seating member supported from below by the lower structure and having a seating surface on which a user sits, an electrical component unit having an electrical output portion disposed above the connecting member, and a wiring accommodating member having an accommodating space that extends in the left-right direction in a state where at least a part in the vertical direction overlaps with the connecting member when viewed from the other side in the front and the rear, and accommodates wiring led out downward from the electrical component unit, on one side in the front and the rear of the connecting member. According to this aspect, by providing the wiring accommodating member, it is possible to suppress the exposure of the wiring below the seating member. The wiring accommodating member is disposed on one side in the front and the rear of the connecting member, and at least a part in the vertical direction overlaps with the connecting member when viewed from the other side in the front and the rear. Therefore, when the chair is viewed from the front or the rear, the wiring accommodating member is less visible, and the appearance can be improved. In particular, when the wiring accommodating member is disposed behind the connecting member, when the chair is viewed from the rear, since the wiring accommodating member is disposed behind the connecting member, operations such as accommodating the wiring in the accommodating space are easy, and the maintainability is improved.

[0006] (2) In the chair according to the aspect (1) above, it is preferable that the wiring accommodating member is provided such that the entire vertical direction overlaps with the connecting member when viewed from the front. According to this aspect, since the entire vertical direction of the wiring accommodating member overlaps with the connecting member, when viewed from the front, the wiring accommodating member is hidden behind the connecting member, and the appearance can be more reliably improved.

[0007] (3) In the chair according to the aspect (2) above, it is preferable that the height dimension in the vertical direction of the wiring accommodating member is smaller than the height dimension in the vertical direction of the connecting member. According to this aspect, when viewed from the front, the wiring accommodating member is more reliably hidden behind the connecting member.

[0008] (4) In the chair according to any one of the above aspects (1) to (3), it further includes an intermediate wiring accommodation member attached to the connecting member and provided below the electric component unit. The intermediate wiring accommodation member communicates with the space inside the electric component unit and has an internal space for accommodating the wiring led out downward from the electric component unit. It is preferable that the wiring accommodation member is connected to the intermediate wiring accommodation member and the accommodation space and the internal space communicate with each other. According to this aspect, the wiring led out downward from the electric component unit is accommodated in the internal space of the intermediate wiring accommodation member provided below the electric component unit. Further, the wiring accommodation member is connected to the intermediate wiring accommodation member, and the accommodation space and the internal space communicate with each other. Thereby, it is possible to suppress the wiring arranged from the electric component unit to the intermediate wiring accommodation member and the wiring accommodation member from being exposed to the outside. Also, since the wiring accommodation member is connected to the intermediate wiring accommodation member, there is no need to directly attach the wiring accommodation member to the connecting member. Thereby, even when the connecting member is bent and deformed downward by the load when a person sits on the seating member, the influence is less likely to reach the wiring accommodation member.

[0009] (5) In the chair according to the aspect of the above (4), it is preferable that the electric component unit and the intermediate wiring accommodation member are provided at positions shifted in the left - right direction with respect to the seating member among the connecting members. According to this aspect, by providing the electric component unit at a position shifted in the left - right direction with respect to the seating member, it is easy for the user sitting on the seating member to use the electric component unit. Also, by arranging the electric component unit and the intermediate wiring accommodation member in the lateral space in the left - right direction of the seating member, when performing maintenance etc. of the electric component unit and the intermediate wiring accommodation member, there is no need to remove the seating member, and the work can be easily performed while avoiding interference with the seating member.

[0010] (6) In the chair according to the aspect according to the above (4) or (5), the wiring accommodation member is connected to the intermediate wiring accommodation member and includes a first member that forms an accommodation space that opens in at least one of the vertical direction and the front-rear direction, and a second member that is detachably or openably / closably provided with respect to the first member and closes the accommodation space. It is preferable to include. According to this aspect, by detachably providing the second member with respect to the first member connected to the intermediate wiring accommodation member, when performing maintenance or the like, if the second member is removed from the first member, the accommodation space can be opened in at least one of the vertical direction and the front-rear direction. Thereby, work such as maintenance can be easily performed. Further, when maintenance or the like is not performed, by attaching the second member to the first member and closing the accommodation space with the second member, it is possible to suppress the wiring from being exposed to the outside.

[0011] (7) In the chair according to any one of the above (1) to (6), the wiring accommodation member is preferably provided below the seating member and at a position overlapping the seating member when viewed from above. According to this aspect, the wiring accommodation member is arranged at a position below the seating member and not protruding rearward from the seating member. Thereby, it is possible to suppress interference with a person passing behind the chair.

[0012] (8) In the chair according to any one of the above (1) to (7), it is preferable to further include a wiring insertion member that extends downward from the wiring accommodation member and has a wiring insertion space that communicates with the accommodation space and guides the wiring downward. According to this aspect, by further including a wiring insertion member having a wiring insertion space that communicates with the accommodation space and guides the wiring downward, it is possible to suppress the wiring extending downward from the wiring accommodation member from being exposed to the outside. Thereby, it is possible to more effectively suppress the appearance of the chair from being damaged.

Effect of the Invention

[0013] According to one aspect of the present invention, it is possible to enhance maintainability while suppressing damage to the appearance.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Modes for Carrying Out the Invention

[0015] Hereinafter, with reference to the accompanying drawings, a form for implementing the chair according to the present invention will be described. However, the present invention is not limited only to this embodiment.

[0016] FIG. 1 is a perspective view of a chair 1A according to an embodiment of the present invention as seen from the front. FIG. 2 is a perspective view of the chair 1A according to an embodiment of the present invention as seen from the rear. FIG. 3 is a side view of the chair 1A according to an embodiment of the present invention. As shown in FIGS. 1 to 3, the chair 1A includes a chair body 2 and a power supply unit 3. The chair body 2 includes a lower structure 20 installed on an installation surface F such as a floor or the ground, and a plurality of seating members 25.

[0017] In the following description, for convenience, the direction in which the seated person sitting on the seating member 25 faces forward is referred to as "front", and the opposite direction is referred to as "rear" or "back side". Also, the direction connecting the side of the installation surface F on which the chair 1A is installed and the opposite side is referred to as the "vertical direction". Further, the left-right direction of the chair 1A as seen from the seated person, that is, the horizontal direction orthogonal to the front-rear direction as seen from the vertical direction, is referred to as the "left-right direction".

[0018] The lower structure 20 has a plurality of support leg members 21 and a connecting member 22. The plurality of support leg members 21 are provided at intervals in the left-right direction. In the present embodiment, for example, two support leg members 21 are provided, but the support leg members 21 may include three or more.

[0019] Each support leg member 21 is provided on the installation surface F. As shown in FIGS. 3 to 5, each support leg member 21 includes a main body portion 23 and a clamp member 24. The main body portion 23 has a pair of leg portions 23f that branch and extend in the front-rear direction downward. The front leg portion 23f is inclined so as to gradually face forward as it goes downward, and the rear leg portion 23f is inclined so as to gradually face rearward as it goes downward. An adjuster 23c having a height adjustment function is provided at the lower end portion of each leg portion 23f.

[0020] As shown in FIG. 3, at the upper end portion of the main body portion 23 (the collective portion of the leg portions 23f), a lower accommodation groove 23s that is recessed downward and in which the lower portion of the connecting member 22 is accommodated is formed. The upper portion of the connecting member 22 protrudes upward from the upper surface of the main body portion 23. On the lower surface of the clamp member 24, an upper accommodation groove 24s that is recessed upward and in which the upper portion of the connecting member 22 is accommodated is formed. The clamp member 24 accommodates the upper portion of the connecting member 22 in the upper accommodation groove 24s, and in a state where the lower surface faces the upper surface of the main body portion 23, it is connected to the main body portion 23 via bolts or the like (not shown).

[0021] The connecting member 22 extends in the left - right direction and connects the support leg members 21 adjacent to each other in the left - right direction. In the present embodiment, the connecting member 22 has a rectangular tube shape extending in the left - right direction. The connecting member 22 has a vertically long rectangular shape in which the height in the up - down direction is larger than the width in the front - rear direction.

[0022] As shown in FIGS. 1 and 2, in the present embodiment, the seating members 25 are provided, for example, four at intervals in the left - right direction. The number of the seating members 25 may be one, or may be two, three, or five or more. As shown in FIG. 3, the seating member 25 is provided above the connecting member 22. The seating member 25 includes a seat portion 26 and a backrest 27. The seat portion 26 has a seat member 261 facing upward and having a seating surface 26f on which a seated person sits, and a base member 262 provided below the seat member 261. The seat portion 26 is fixed via a pair of support brackets 28 fixed to the connecting member 22 by fixing means such as welding. The pair of support brackets 28 are provided spaced apart in the left-right direction. As shown in FIG. 4, each support bracket 28 has locking portions 28k and 28j that protrude downward in front of and behind the connecting member 22. The locking portion 28k abuts against the connecting member 22 from the front, and the locking portion 28j abuts against the connecting member 22 from the rear. The locking portions 28k and 28j are fixed to the connecting member 22 by means such as welding, thereby restricting the forward and backward movement of the support bracket 28. The pair of support brackets 28 are joined to the base member 262 via bolts or the like. Thereby, the seating member 25 is supported from below by the connecting member 22 via the support brackets 28. The backrest 27 extends upward from the rear end portion of the seat portion 26. The upper portion of the backrest 27 extends obliquely rearward upward. As shown in FIG. 3, the connecting member 22 is below the central portion in the front-rear direction within the entire range of the seating member 25 including from the front end portion of the seat portion 26 to the rear end portion of the backrest 27, and is located below a portion slightly rearward of the central portion in the front-rear direction of only the seat portion 26.

[0023] FIG. 6 is a perspective view of the lower structure 20 of the chair 1A and the power supply unit 3 according to the embodiment of the present invention as viewed from the front. FIG. 5 is a perspective view of the lower structure 20 of the chair 1A and the power supply unit 3 according to the embodiment of the present invention as viewed from the rear. FIG. 6 is a perspective view of the power supply unit 3 of the chair 1A according to the embodiment of the present invention as viewed from the front. FIG. 7 is a cross-sectional view taken along the arrow VII-VII in FIG. 6. In FIG. 6, for the sake of explanation, a state in which the front wall portion 311f of one of the electrical component units 31A in the left-right direction and the lid 352 of the wiring housing member 35 are removed is shown. As shown in FIGS. 4 to 7, the power supply unit 3 includes an electrical component unit 31A, an intermediate wiring housing member 33A, a wiring housing member 35, and a wiring insertion member 40. As shown in FIG. 1, the electrical component unit 31A is provided laterally of the seating member 25 in the left - right direction. In the present embodiment, the electrical component unit 31A is disposed between adjacent seating members 25 in the left - right direction. Note that the electrical component unit 31A may be disposed laterally outside the seating member 25 located at the left - right outermost end of the chair 1A.

[0024] As shown in FIGS. 4 to 7, the electrical component unit 31A is supported on the connecting member 22 via the intermediate wiring housing member 33A. The electrical component unit 31A has a unit main body portion 311 and a front extending portion 312. As shown in FIG. 3, when viewed from the left - right direction, the unit main body portion 311 extends obliquely rearward upward from near the rear end portion of the seat portion 26. In the illustrated example, the unit main body portion 311 extends along the backrest 27. The unit main body portion 311 is formed in a hollow box shape that opens downward. Specifically, as shown in FIG. 6, the unit main body portion 311 has a pair of side wall portions 311d provided apart in the left - right direction, a front wall portion 311f connecting the front end portions of the pair of side wall portions 311d, a rear wall portion 311b connecting the rear end portions of the pair of side wall portions 311d, and an upper wall portion 311t connecting the upper end portions of the pair of side wall portions 311d. Note that in the illustrated example, the upper wall portion 311t of the unit main body portion 311 is located at the same height as the intermediate portion in the vertical direction of the backrest 27.

[0025] As shown in FIGS. 6 and 7, the unit main body 311 has an electrical output unit 32 on the front wall 311f. The electrical output unit 32 is various electrical components that output the power supplied from the outside via the wiring 100. In the present embodiment, a power strip box 320 is provided as the electrical output unit 32. The power strip box 320 is provided with, for example, a power outlet connection port 321 to which a power plug of an electronic device can be connected, and a USB port 322 to which a connector provided at the end of a USB cable can be connected.

[0026] As shown in FIG. 7, the wiring 100 connected to the electrical output unit 32 (power outlet connection port 321, USB port 322) is accommodated in the space 311s inside the unit main body 311. The lower end 311u of the unit main body 311 is connected to the intermediate wiring housing member 33A. The wiring 100 is led out into the internal space 33s in the intermediate wiring housing member 33A through the lower end opening of the unit main body 311.

[0027] The front extension 312 extends forward from the lower end 311u of the unit main body 311. A plate member 313 extending in the front-rear direction is provided on the front extension 312. The upper surface of the plate member 313 constitutes an article placement surface 313t facing upward. As shown in FIG. 1, various articles can be placed on the plate member 313 between adjacent seat parts 26. Also, as shown in FIG. 1, in the present embodiment, the plate member 313 is arranged in the space S between the left-right opposing edges of the adjacent seating members 25 in the left-right direction, and also has a function of preventing articles from accidentally falling downward from this space S.

[0028] As shown in FIG. 7, the intermediate wiring housing member 33A is provided below the electrical component unit 31A and supports the electrical component unit 31A from below. The electrical component unit 31A and the intermediate wiring housing member 33A are provided at positions shifted in the left-right direction with respect to the seating member 25 among the connecting members 22. The intermediate wiring housing member 33A has a fixing bracket 331 and a housing member main body 332. The fixing bracket 331 is placed on the connecting member 22 and extends forward and backward with respect to the connecting member 22. The fixing bracket 331 has a locking portion 331k that protrudes downward in front of the connecting member 22. The locking portion 331k abuts against the connecting member 22 from the front and is fixed to the connecting member 22 by means such as welding, thereby restraining the backward movement of the fixing bracket 331. The electric component unit 31A is provided on such a fixing bracket 331 and is bolted.

[0029] The housing member main body 332 is provided behind the connecting member 22. The housing member main body 332 is bolted to the rear end portion of the fixing bracket 331. The housing member main body 332 is formed in a hollow box shape that opens upward.

[0030] FIG. 8 is a view of the joint portion between the intermediate wiring housing member 33A and the end portion of the wiring housing member 35 as seen from the rear, and is a cross-sectional view taken along the arrow VII-VII in FIG. 5. As shown in FIGS. 7 and 8, the housing member main body 332 has a pair of side wall portions 332d provided at intervals in the left-right direction, a front wall portion 332f connecting the front end portions of the pair of side wall portions 332d, a rear wall portion 332b connecting the rear end portions of the pair of side wall portions 332d, and a bottom wall portion 332t connecting the lower end portions of the pair of side wall portions 332d.

[0031] The internal space 33s of the housing member main body 332 communicates vertically with the space 311s in the unit main body portion 311 and houses the wiring 100 led out downward from the space 311s of the electric component unit 31A. The bottom wall portion 332t of the housing member main body 332 is provided at the same height as the lower end of the connecting member 22 or at a position higher than the lower end of the connecting member 22. Thereby, the housing member main body 332 (intermediate wiring housing member 33A) is not exposed below the connecting member 22 when viewed from the front.

[0032] The front wall portion 332f of the housing member main body 332 abuts against the connecting member 22 from the rear, restricting the forward movement of the intermediate wiring housing member 33A. In this way, the intermediate wiring housing member 33A is provided so as to sandwich the connecting member 22 between the locking portion 331k and the housing member main body 332, restricting the forward and backward movement of the electric component unit 31A supported by the intermediate wiring housing member 33A and the wiring housing member 35. Also, as shown in FIG. 8, a through hole 332h penetrating the side wall portion 332d in the left - right direction is formed in one side wall portion 32d of the housing member main body 332.

[0033] As shown in FIGS. 5 and 7, the wiring housing member 35 is disposed behind the connecting member 22. As a whole, the wiring housing member 35 has a rectangular tube shape extending in the left - right direction and has a housing space 35s inside. When viewed from the front, at least a part in the up - down direction of the wiring housing member 35 overlaps with the connecting member 22. In the present embodiment, when viewed from the front, the entire up - down direction of the wiring housing member 35 is provided so as to overlap with the connecting member 22. As shown in FIG. 7, the height dimension H2 in the up - down direction of the wiring housing member 35 is smaller than the height dimension H1 in the up - down direction of the connecting member 22. The wiring housing member 35 is provided below the seating member 25 and is provided at a position overlapping the seating member 25 when viewed from above. That is, the wiring housing member 35 does not protrude behind the rear end of the seating member 25. Since the wiring housing member 35 is disposed behind the connecting member 22 in this way, when the chair 1A is viewed from the rear, the wiring housing member 35 is disposed behind the connecting member 22, so that operations such as housing the wiring in the housing space 35s are easy, and the maintainability is improved. Also, as shown in FIG. 7, the space between the lower surface of the seat portion 26 of the seating member 25 and the installation surface F functions as a working space Z for performing operations such as introducing the wiring 100 into the wiring housing member 35 or leading out the wiring 100 from the wiring housing member 35.

[0034] FIG. 9 is a cross - sectional view of the wiring housing member 35 of the chair 1A according to the embodiment of the present invention viewed from the left - right direction. It is a view of the wiring housing member 35 viewed from the left - right direction and is a cross - sectional view taken along the arrow IX - IX in FIG. 8. As shown in FIGS. 8 and 9, in the present embodiment, the wiring housing member 35 has a wiring member main body (first member) 351 and a lid body (second member) 352.

[0035] When viewed from the left - right direction, the wiring member main body 351 has a U - shaped opening upward, and includes a bottom plate portion 351d, a front plate portion 351f rising upward from the front end portion of the bottom plate portion 351d, and a rear plate portion 351b rising upward from the rear end portion of the bottom plate portion 351d. The wiring member main body 351 forms a housing space 35s in the space surrounded by the bottom plate portion 351d, the front plate portion 351f, and the rear plate portion 351b. Note that the upper end of the front plate portion 351f is located above the upper end of the rear plate portion 351b.

[0036] As shown in FIG. 8, both end portions in the left - right direction of the wiring member main body 351 are inserted into the housing member main body 332 through through - holes 332h, respectively. Both end portions in the left - right direction of the wiring member main body 351 are fixed to the bottom wall portion 332t in the housing member main body 332 via bolts (not shown). Note that the connection structure of the wiring member main body 351 to the housing member main body 332 is not limited to the example shown here and can be changed as appropriate.

[0037] As shown in FIGS. 8 and 9, the lid body 352 is provided so as to cover the housing space 35s of the wiring member main body 351 from above. As shown in FIG. 5, the lid body 352 extends in the left - right direction between the intermediate wiring housing member 33A on one side in the left - right direction and the intermediate wiring housing member 33A on the other side in the left - right direction. The end portions in the left - right direction of the lid body 352 are not inserted into the intermediate wiring housing member 33A, but may be inserted. The lid body 352 closes the entire portion where the housing space 35s of the wiring member main body 351 opens upward between the intermediate wiring housing member 33A on one side in the left - right direction and the intermediate wiring housing member 33A on the other side in the left - right direction. As shown in FIG. 9, when viewed from the left - right direction, the lid body 352 has an inverted U - shaped opening downward, and includes an upper plate portion 352t, a front locking portion 352f extending downward from the front end portion of the upper plate portion 352t, and a rear locking portion 352b extending downward from the rear end portion of the upper plate portion 352t.

[0038] With the lid 352 covering the accommodation space 35s from above, the upper plate portion 352t is placed on the upper ends of the front plate portion 351f and the rear plate portion 351b, and is inclined obliquely downward from the front to the rear. With the lid 352 covering the accommodation space 35s from above, the front locking portion 352f is along the front surface of the front plate portion 351f. With the lid 352 covering the accommodation space 35s from above, the rear locking portion 352b is along the rear surface of the rear plate portion 351b. The lid 352 is detachably fixed to the wiring member main body 351 by fastening the rear locking portion 352b to the rear plate portion 351b via bolts (not shown). When performing maintenance, after removing the bolts (not shown), the lid 352 can be removed upward to open the upper part of the accommodation space 35s. When the left and right ends of the lid 352 are inserted into the intermediate wiring accommodation member 33A, after shifting one end of the lid 352 in the left and right direction to the other in the left and right direction and pulling it out from the intermediate wiring accommodation member 33A, it is lifted upward, and further, by shifting the other end of the lid 352 in the left and right direction to one in the left and right and pulling it out from the intermediate wiring accommodation member 33A, the lid 352 can be removed.

[0039] As described above, the connecting member 22 is located below a portion behind the center in the front-rear direction of the seat portion 26 in the seating member 25, and the wiring accommodation member 35 is located further behind the connecting member 22. That is, the area of the seat portion 26 covering the working space Z from above is smaller behind than in front of the connecting member 22. Therefore, it is easy to perform maintenance work on the wiring accommodation member 35 itself and the wiring 100 inside the wiring accommodation member 35. When a support bracket 28 or the like is provided above the lid 352, it is preferable to make the vertical height dimension H3 of the front locking portion 352f smaller than the vertical gap S between the upper end of the lid 352 and the support bracket 28.

[0040] As shown in FIG. 8, the accommodation space 35s of such a wiring accommodation member 35 communicates with the internal space 33s of the intermediate wiring accommodation member 33A through through-holes 332h at both left and right ends of the wiring accommodation member 35 in the left-right direction. Thereby, the wiring 100 led downward from the electric component unit 31A is accommodated in the accommodation space 35s through the internal space 33s.

[0041] As shown in FIG. 6, the wiring insertion member 40 is provided below the wiring accommodation member 35. In the present embodiment, the wiring insertion member 40 extends downward from the intermediate portion in the left-right direction of the wiring accommodation member 35. The position of the wiring insertion member 40 in the left-right direction can be changed as appropriate. As shown in FIG. 7, the wiring insertion member 40 extends in the vertical direction and has a wiring insertion space 40s that communicates with the accommodation space 35s. The wiring insertion member 40 guides the wiring 100 accommodated in the accommodation space 35s downward through the wiring insertion space 40s.

[0042] The upper end 40t of the wiring insertion member 40 is connected to the wiring accommodation member 35, which is a portion of the lower structure 20 that extends in the left-right direction. The lower end 40b of the wiring insertion member 40 is installed on the installation surface F. As shown in FIGS. 6 and 7, in the present embodiment, the wiring insertion member 40 includes an upper member 41 having an upper end 40t and a lower member 42 having a lower end 40b.

[0043] The upper member 41 has a rectangular tube-shaped tubular portion 41c that extends in the vertical direction. The internal space of the tubular portion 41c constitutes a part (upper part) of the wiring insertion space 40s. The upper end 40t of the upper member 41 is connected to the lower surface of the wiring accommodation member 35 (bottom plate portion 351d) by bolts or the like (not shown). An opening 351h that communicates with the opening of the upper end 40t of the upper member 41 is formed in the bottom plate portion 351d of the wiring accommodation member 35. Through this opening 351h, the accommodation space 35s and the wiring insertion space 40s communicate with each other.

[0044] The lower member 42 has a rectangular tube-shaped tubular portion 42c extending in the vertical direction. The internal space of the tubular portion 42c constitutes a part (lower part) of the wiring insertion space 40s. In the present embodiment, the upper end portion of the lower member 42 is inserted into the upper member 41 from below. Note that the lower end portion of the upper member 41 may be inserted into the lower member 42 from above. Thereby, the internal spaces of the tubular portions 41c and 42c communicate with each other, and the wiring insertion space 40s is formed in the entire vertical direction in the wiring insertion member 40. The wiring 100 introduced into the upper member 41 from the opening 351h is guided into the lower member 42.

[0045] At the lower end portion of the lower member 42, a communication opening 42h that communicates the inside and outside of the lower member 42 is formed in one of the plurality of side surfaces of the rectangular tube-shaped lower member 42. The wiring 100 inserted into the lower member 42 is led out to the outside of the wiring insertion member 40 through the communication opening 42h and is disposed along the installation surface F.

[0046] In such a wiring insertion member 40, a predetermined clearance is formed between the outer peripheral surface of the lower member 42 and the inner peripheral surface of the upper member 41. Thereby, the lower member 42 and the upper member 41 can be relatively displaced in the vertical direction. That is, the wiring insertion member 40 has a so-called telescopic structure. Due to the load of the seated person seated on the seating member 25, aging changes, etc., the intermediate portion in the left-right direction of the connecting member 22 may be deformed so as to bend downward. Along with this, also in the wiring housing member 35 attached to the connecting member 22 via the intermediate wiring housing member 33A, a downward displacement in the vertical direction may occur in the portion extending in the left-right direction of the wiring housing member 35. In this case, since the lower member 42 and the upper member 41 can be relatively displaced in the vertical direction, the wiring insertion member 40 can expand and contract in the vertical direction following the vertical displacement of the wiring housing member 35, and the relative displacement in the vertical direction between the upper end 40t and the lower end 40b is allowed.

[0047] As described above, in this embodiment, a plurality of leg members 21 are provided on the installation surface F and spaced apart in the left-right direction, a connecting member 22 extends in the left-right direction and connects adjacent leg members 21 in the left-right direction, a seating member 25 having a seating surface 26f on which a user sits is supported from below by the connecting member 22, an electrical component unit 31A having an electrical output portion 32 disposed above the connecting member 22, and a wiring accommodating member 35 having an accommodating space 35s that extends in the left-right direction in a state where at least a part in the up-down direction overlaps with the connecting member 22 when viewed from the front and accommodates a wiring 100 led out downward from the electrical component unit 31A are provided. According to this configuration, the wiring accommodating member 35 is disposed behind the connecting member 22, and at least a part in the up-down direction overlaps with the connecting member 22 when viewed from the front. For this reason, when the chair 1A is viewed from the front, the wiring accommodating member 35 is difficult to see, and the appearance can be improved. Further, when the chair 1A is viewed from the rear, since the wiring accommodating member 35 is disposed behind the connecting member 22, operations such as accommodating the wiring 100 in the accommodating space 35s are easy, and the maintainability is improved.

[0048] In this embodiment, the wiring accommodating member 35 is configured such that the entire height in the up-down direction overlaps with the connecting member 22 when viewed from the front. According to this configuration, since the entire height in the up-down direction of the wiring accommodating member 35 overlaps with the connecting member 22, the wiring accommodating member 35 is hidden behind the connecting member 22 when viewed from the front.

[0049] In this embodiment, the height dimension H2 in the up-down direction of the wiring accommodating member 35 is configured to be smaller than the height dimension H1 in the up-down direction of the connecting member 22. According to this configuration, the wiring accommodating member 35 is more surely hidden behind the connecting member 22 when viewed from the front.

[0050] In this embodiment, an intermediate wiring housing member 33A is further provided, which is attached to the connecting member 22 and supports the electrical component unit 31A from below. The intermediate wiring housing member 33A houses the wiring 100 led out downward from the electrical component unit 31A and has an internal space 33s communicating with the space inside the electrical component unit 31A. The wiring housing member 35 is connected to the intermediate wiring housing member 33A such that the housing space 35s and the internal space 33s communicate with each other. According to this configuration, the wiring 100 led out downward from the electrical component unit 31A is housed in the internal space 33s of the intermediate wiring housing member 33A that supports the electrical component unit 31A from below. Further, the wiring housing member 35 is connected to the intermediate wiring housing member 33A such that the housing space 35s and the internal space 33s communicate with each other. Thereby, it is possible to suppress the wiring 100 disposed from the electrical component unit 31A to the intermediate wiring housing member 33A and the wiring housing member 35 from being exposed to the outside. In addition, since the wiring housing member 35 is connected to the intermediate wiring housing member 33A, it is not necessary to directly attach the wiring housing member 35 to the connecting member 22. As a result, even when the connecting member 22 is bent and deformed downward due to the load when a person sits on the seating member 25, the influence is less likely to reach the wiring housing member 35.

[0051] In this embodiment, the electrical component unit 31A and the intermediate wiring housing member 33A are configured to be provided at positions shifted in the left - right direction with respect to the seating member 25 in the connecting member 22. According to this configuration, by providing the electrical component unit 31A at a position shifted in the left - right direction with respect to the seating member 25, it is easy for the user sitting on the seating member 25 to use the electrical component unit 31A. By arranging the electrical component unit 31A and the intermediate wiring housing member 33A in the lateral space in the left - right direction of the seating member 25, when performing maintenance etc. on the electrical component unit 31A and the intermediate wiring housing member 33A, it is not necessary to remove the seating member 25, and the work can be easily performed while avoiding interference with the seating member 25.

[0052] In this embodiment, the wiring housing member 35 includes a wiring member main body 351 that is connected to the intermediate wiring housing member 33A and forms a housing space 35s that opens in at least one of the vertical direction and the front-rear direction, and a lid body 352 that is detachably provided with respect to the wiring member main body 351 and closes the housing space 35s. According to this configuration, by detachably providing the lid body 352 with respect to the wiring member main body 351 connected to the intermediate wiring housing member 33A, when performing maintenance or the like, the lid body 352 can be removed from the wiring member main body 351, and the housing space 35s can be opened in at least one of the vertical direction and the front-rear direction. Thereby, work such as maintenance can be easily performed. Further, when maintenance or the like is not performed, the lid body 352 is attached to the wiring member main body 351, and the housing space 35s is closed by the lid body 352, so that the wiring 100 can be prevented from being exposed to the outside.

[0053] In this embodiment, the wiring housing member 35 is provided below the seating member 25 and is configured to be provided at a position overlapping the seating member 25 when viewed from above. According to this configuration, the wiring housing member 35 is disposed at a position below the seating member 25 and not protruding rearward of the seating member 25. Thereby, interference with a person passing behind the chair 1A is suppressed.

[0054] In this embodiment, the wiring housing member 35 further includes a wiring insertion space 40s that communicates with the housing space 35s and guides the wiring 100 downward, and a wiring insertion member 40 that extends downward from the wiring housing member 35. According to this configuration, by further providing the wiring insertion member 40 having the wiring insertion space 40s that communicates with the housing space 35s and guides the wiring 100 downward, it is possible to suppress the wiring 100 extending downward from the wiring housing member 35 from being exposed to the outside. Thereby, it is possible to more effectively suppress the appearance of the chair 1A from being impaired.

[0055] (Modification of the embodiment) FIG. 10 is a perspective view of a chair 1B according to a modification of the embodiment of the present invention as viewed from the front. As shown in FIG. 10, the chair 1B includes a chair body 2B and a power supply unit 3B.

[0056] The chair body 2B of the present embodiment includes a lower structure 20 and a plurality of seating members 25. In the present embodiment, for example, two seating members 25 are provided at intervals in the left - right direction. On one side (for example, the right side) in the left - right direction of each seating member 25, a table 50 is provided. Each table 50 faces upward and has an article placement surface 50f on which articles can be placed.

[0057] FIG. 11 is a perspective view of the lower structure and the power supply unit 3B of the chair 1B according to a modification of the embodiment of the present invention, as viewed from the front. As shown in FIG. 11, the table 50 is supported by a connecting member 22 via a pair of support brackets 52 provided at intervals in the left - right direction. Each support bracket 52 extends in the front - rear direction across the connecting member 22. Each support bracket 52 has locking portions 52k, 52j that protrude downward in front of and behind the connecting member 22. The locking portion 52k abuts against the connecting member 22 from the front, and the locking portion 52j abuts against the connecting member 22 from the rear. The locking portions 52k, 52j are fixed to the connecting member 22 by means such as welding, thereby restraining the front - rear movement of the support bracket 52.

[0058] FIG. 12 is a perspective view of the lower structure 20 and the power supply unit 3 of the chair 1B according to a modification of the embodiment of the present invention, as viewed from the rear. FIG. 13 is a perspective view of the power supply unit 3 of the chair 1B according to a modification of the embodiment of the present invention, as viewed from the front. FIG. 14 is a cross - sectional view of the power supply unit 3 of the chair 1B according to a modification of the embodiment of the present invention, as viewed from the left - right direction. As shown in FIGS. 11 to 14, the power supply unit 3B includes an electrical component unit 31B, an intermediate wiring housing member 33B, a wiring housing member 35, and a wiring insertion member 40. As shown in FIGS. 10 and 14, the electrical component unit 31B is provided at the rear end portion of the table 50. The electrical component unit 31B has a unit main body portion 316 and a front extending portion 317.

[0059] As shown in FIG. 14, the unit main body portion 316 is formed as a hollow box shape as a whole, and a space 316s is formed inside thereof. Specifically, when viewed from the left - right direction, the unit main body portion 316 integrally has a head portion 316a that protrudes upward from the rear end portion of the table 50 and a downward extending portion 316b that extends downward behind the table 50 from the head portion 316a. The head portion 316a has a trapezoidal cross - sectional shape when viewed from the left - right direction. The downward extending portion 316b has a rectangular parallelepiped shape extending downward from the head portion 316a.

[0060] As shown in FIG. 13, the head portion 316a is provided with a front wall portion 316f that faces obliquely upward toward the front. The unit main body portion 316 has an electrical output portion 32 on the front wall portion 316f. In the present embodiment, an outlet box 320 is provided as the electrical output portion 32. The outlet box 320 is provided with, for example, an outlet connection port 321 and a USB port 322.

[0061] As shown in FIG. 14, a wiring 100 connected to the electrical output portion 32 (outlet connection port 321, USB port 322) is accommodated in the space 316s inside the unit main body portion 316. As shown in FIG. 13, a communication opening 316h that communicates with the space 316s and through which the wiring 100 in the space 316s can be led out is formed on the front surface of the downward extending portion 316b.

[0062] The front extension part 317 extends forward from the lower extension part 316b of the unit main body part 316. The rear end part of the front extension part 317 is connected to the lower extension part 316b via bolts or the like (not shown). The front extension part 317 integrally has a plate part 317a that is rectangular in plan view and extends along a plane intersecting the vertical direction, and a pair of rising walls 317b that rise upward from both sides in the left - right direction of the plate part 317a. The plate part 317a is provided below the communication opening 316h. A through - hole 317h that penetrates the plate part 317a vertically is formed in the plate part 317a.

[0063] As shown in FIG. 11, the front extension part 317 is disposed between a pair of support brackets 52, and a pair of rising walls 317b are connected to the pair of support brackets 52 with bolts or the like (not shown). That is, the electric component unit 31B is supported on the connecting member 22 via the support brackets 52.

[0064] As shown in FIG. 14, a space 317s that communicates with the space 316s inside the unit main body part 316 is formed between the plate part 317a of the front extension part 317, the pair of rising walls 317b, and the lower surface of the table 50.

[0065] As shown in FIGS. 13 and 14, the intermediate wiring housing member 33B is in a hollow box shape and is provided below the plate part 317a. The intermediate wiring housing member 33B is in a rectangular parallelepiped shape with the longitudinal direction in the vertical direction and is connected to the lower surface of the plate part 317a with bolts or the like (not shown). The lower end of the intermediate wiring housing member 33B is provided at the same height as the lower end of the connecting member 22 or at a position higher than the lower end of the connecting member 22. Thereby, the intermediate wiring housing member 33B is not exposed below the connecting member 22 when viewed from the front.

[0066] The internal space 33t of the intermediate wiring accommodating member 33B communicates with the spaces 316s and 317s within the electric component unit 31B via the through hole 317h. The internal space 33t accommodates the wiring 100 that is led downward from the spaces 316s and 317s of the electric component unit 31B through the through hole 317h. The intermediate wiring accommodating member 33B has a through hole 33h on one side surface in the left-right direction.

[0067] As shown in FIG. 10, the electric component unit 31B and the intermediate wiring accommodating member 33B are provided at positions shifted in the left-right direction with respect to the seating member 25 among the connecting members 22.

[0068] As shown in FIGS. 12 and 14, the wiring accommodating member 35 is disposed behind the connecting member 22. The wiring accommodating member 35 has an overall shape of a rectangular tube extending in the left-right direction and has an accommodation space 35s inside thereof. The wiring accommodating member 35 has a wiring member main body 351 and a lid body 352.

[0069] The accommodation space 35s of such a wiring accommodating member 35 communicates with the internal space 33t of the intermediate wiring accommodating member 33B through the through hole 33h at each of both ends in the left-right direction of the wiring accommodating member 35. Thereby, the wiring 100 led downward from the electric component unit 31B is accommodated in the accommodation space 35s through the internal space 33t.

[0070] The wiring insertion member 40 is provided below the wiring accommodating member 35. The wiring insertion member 40 extends in the vertical direction and has a wiring insertion space 40s that communicates with the accommodation space 35s. The wiring insertion member 40 guides the wiring 100 accommodated in the accommodation space 35s downward through the wiring insertion space 40s.

[0071] (Other embodiments) Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Additions, omissions, substitutions, and other changes can be made without departing from the spirit of the present invention. The present invention is not limited by the above description, but is limited only by the appended claims. For example, in the above-described embodiment, the electrical output unit 32 is provided with an outlet box 320 having an outlet connection port 321 and a USB port 322. However, the present invention is not limited to this. The electrical output unit 32 may be, for example, other electrical components such as lighting and speakers. In the above-described embodiment, the configuration in which the entire electrical component units 31A and 31B are located above the connecting member 22 has been described. However, the present invention is not limited to this configuration. It is sufficient that at least the electrical output unit 32 of the electrical component units 31A and 31B is located above the connecting member 22.

[0072] In the above embodiment, the wiring 100 is configured to pass through the intermediate wiring accommodating members 33A and 33B from the electrical component units 31A and 31B and be led into the wiring accommodating member 35. However, the present invention is not limited to this. The wiring 100 may be led into the wiring accommodating member 35 without passing through the intermediate wiring accommodating members 33A and 33B from the electrical component units 31A and 31B. Further, without providing the intermediate wiring accommodating members 33A and 33B, the wiring 100 may be directly led into the wiring accommodating member 35 from the electrical component units 31A and 31B. When adopting this form, it is desirable that the wirings 100 led out from each of the plurality of electrical component units 31A and 31B are bundled by a bundling means above the wiring accommodating member 35.

[0073] In the above embodiment, the wiring member main body 351 forms an accommodating space 35s that opens upward, and the lid body 352 covers the accommodating space 35s from above. However, the present invention is not limited to this. For example, the wiring member main body 351 may form an accommodating space 35s that opens rearward, and the lid body 352 may cover the accommodating space 35s from the rear. Further, the wiring member main body 351 may form an accommodating space 35s that opens upward and rearward, and the lid body 352 may cover the accommodating space 35s from above and rear. Further, the lid body 352 is detachable from the wiring member main body 351 by bolts (not shown). However, the present invention is not limited to this. The lid body 352 may be connected to the wiring member main body 351 so as to be openable and closable around a connecting shaft extending in the left-right direction, thereby opening and closing the accommodating space 35s. Note that the lid body 352 is not an essential configuration.

[0074] In the above embodiment, the wiring accommodating member 35 is arranged behind the connecting member 22 such that at least a part in the vertical direction overlaps with the connecting member 22 when viewed from the front, but the present invention is not limited to this. For example, as shown by the two-dot chain line in FIG. 3, the wiring accommodating member 35F may be arranged in front of the connecting member 22 such that at least a part in the vertical direction overlaps with the connecting member 22 when viewed from the rear. In this case, the wiring insertion member 40F is arranged to extend downward from the wiring accommodating member 35F. In the above embodiment, the seating member 25 is configured to be supported from below by the connecting member 22, but the present invention is not limited to this. The seating member 25 may be configured to be supported from below by, for example, the leg member 21.

[0075] In the above embodiment, in the wiring insertion member 40, the lower member 42 and the upper member 41 are configured to be relatively displaceable in the vertical direction, so that the wiring insertion member 40 can expand and contract in the vertical direction following the displacement in the vertical direction of the wiring accommodating member 35, but the present invention is not limited to this. As long as the wiring insertion member 40 can expand and contract in the vertical direction following the displacement in the vertical direction of the wiring accommodating member 35, for example, a member made of rubber, sponge, or the like that can be elastically deformed in the vertical direction may be provided at the lower end of the wiring insertion member 40. Further, the wiring insertion member 40 may be configured not to be able to expand and contract in the vertical direction following the displacement in the vertical direction of the wiring accommodating member 35. Furthermore, the wiring insertion member 40 may be omitted. In addition, within the scope not departing from the gist of the present invention, it is possible to appropriately replace the constituent elements in the above-described embodiment with well-known constituent elements, and the above-described various modification examples may also be appropriately combined.

Explanation of Reference Numerals

[0076] 1A, 1B... Chairs 21... Leg member 22... Connecting member 25... Seating member 26f... Seating surface 31A, 31B... Electrical component units 32…Electric output section 33A, 33B…Intermediate wiring housing members 33s, 33t…Internal spaces 35…Wiring housing member 35s…Housing space 40…Wiring insertion member 40s…Wiring insertion space 100…Wiring 311s…Space 316s…Space 317s…Space 351…Wiring member body (first member) 352…Cover body (second member) F…Installation surface

Claims

1. A lower structure including a plurality of support leg members provided on a mounting surface and spaced apart in the left - right direction, and a connecting member extending in the left - right direction and connecting the adjacent support leg members in the left - right direction; A seating member having a seating surface on which a user sits and supported from below by the lower structure; An electrical component unit having an electrical output portion disposed above the connecting member; On one side (front or rear) of the connecting member, when viewed from the other side (rear or front), a wiring accommodation member extending in the left - right direction with at least a part in the up - down direction overlapping the connecting member, and having an accommodation space for accommodating wiring led out downward from the electrical component unit; A chair characterized by comprising the above components.

2. When viewed from the front, the entire height in the up - down direction of the wiring accommodation member is provided so as to overlap the connecting member. The chair according to Claim 1.

3. The height dimension in the up - down direction of the wiring accommodation member is smaller than the height dimension in the up - down direction of the connecting member. The chair according to Claim 2.

4. Further comprising an intermediate wiring accommodation member attached to the connecting member and provided below the electrical component unit, The intermediate wiring accommodation member has an internal space communicating with the space in the electrical component unit and accommodating wiring led out downward from the electrical component unit, The wiring accommodation member is connected to the intermediate wiring accommodation member, and the accommodation space and the internal space communicate with each other. The chair according to Claim 1 or 2.

5. The electrical component unit and the intermediate wiring accommodation member are provided at positions shifted in the left - right direction with respect to the seating member among the connecting members. The chair according to Claim 4.

6. The wiring accommodation member, A first member connected to the intermediate wiring accommodation member and forming the accommodation space opening at least in one of the up - down direction and the front - rear direction, A second member provided detachably or openably - closably with respect to the first member and closing the accommodation space. The chair according to Claim 4.

7. The wiring accommodation member is provided below the seating member and is provided at a position overlapping the seating member when viewed from above. The chair according to Claim 1 or 2.

8. Further comprising a wiring insertion member extending downward from the wiring accommodation member and having a wiring insertion space communicating with the accommodation space and guiding the wiring downward. The chair according to Claim 1 or 2.

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