JP2021013686A - Chair - Google Patents

Abstract

To enable a function part to be arranged in a position lower than an undersurface of an armrest part without protruding ahead of a support structure, in a chair having a backrest supported by the support structure.SOLUTION: A left-side support structure 7 comprises: a hollow structure that is formed in a hollow shape; a left-side armrest panel 7b that is connected to an upper part of the hollow structure and provided in an opening 7b1 penetrating in a vertical direction; and an article storage part 7c that is arranged in an internal space K of the hollow structure below the left-side armrest panel 7b and arranged in the state of being exposed upward via the opening 7b1.SELECTED DRAWING: Figure 4

Description

The present invention relates to a chair.

Conventionally, chairs installed in theaters and the like are provided with an article storage unit for a beverage container or the like in consideration of the user sitting for a long time. For example, Patent Document 1 discloses a configuration in which a beverage container can be accommodated by providing a cup holder in front of a support structure having legs and elbow pads.

Japanese Unexamined Patent Publication No. 2005-270498

However, the front of the chairs installed in theaters and the like is a passage for people to pass through. For this reason, if an article accommodating portion such as a cup holder is provided so as to project in front of the support structure, a pedestrian passing in front of the chair may come into contact with the article accommodating portion or the article accommodated in the article accommodating portion. It may obstruct the passage. On the other hand, it is also conceivable to provide a recess in the armrest portion forming the upper part of the support structure and use this recess as an article accommodating portion. However, in such a case, the depth dimension of the article accommodating portion cannot exceed the thickness dimension of the armrest portion, and the depth dimension of the article accommodating portion cannot be sufficiently secured. That is, when the recess is provided in the armrest, the functional portion such as the article accommodating portion cannot be arranged below the lower surface of the armrest.

The present invention has been made in view of the above-mentioned problems, and in a chair having a backrest supported by a support structure, the present invention is made so as not to protrude forward of the support structure and at a position below the lower surface of the armrest portion. The purpose is to make it possible to arrange functional parts.

The present invention employs the following configuration as a means for solving the above problems.

The first invention is a chair provided with a grounded support structure and a backrest supported by the support structure, wherein the support structure is a hollow structure and a hollow structure. An elbow rest that is connected to the upper part of the body and is provided with a through hole that penetrates in the vertical direction, and is arranged in the internal space of the hollow structure below the elbow rest and upward through the through hole. A configuration is adopted in which the functional unit is exposed and arranged toward the surface.

According to the first invention as described above, the internal space of the hollow structure is formed below the elbow rest portion, the functional portion is arranged in the internal space of the hollow structure, and the functional portion is provided on the elbow rest portion. It can be accessed through the provided through hole. That is, according to the present invention, the functional portion can be arranged at a position lower than the lower surface of the armrest portion. Therefore, according to the present invention, in a chair having a backrest supported by the support structure, the functional portion can be arranged at a position below the lower surface of the armrest portion without protruding forward of the support structure. It becomes.

The second invention adopts the configuration in which the functional portion is an article accommodating portion having an accommodating space communicated with the through hole in the first invention.

According to such a second invention, the functional portion is an article accommodating portion, and at least a part of the article accommodating portion is arranged below the lower surface of the armrest portion. Further, the storage space of such an article storage portion is communicated with a through hole provided in the armrest portion. Therefore, according to the present invention, the depth dimension of the article accommodating portion can be made larger than the thickness dimension of the armrest portion, and a through hole provided in the elbow rest portion in the accommodating space of such an article accommodating portion. Goods can be taken in and out through. Therefore, according to the present invention, it is not necessary to project the article accommodating portion to the front of the armrest portion, and it is possible to secure a sufficiently large depth dimension of the accommodating space of the article accommodating portion.

In the third invention, in the second invention, the article accommodating portion has an article placing surface capable of supporting the article from below, and the bottom plate is located below the armrest portion, and the bottom plate and the elbow rest. A configuration is adopted in which a vertical wall portion for connecting the portions is provided.

According to such a third invention, the article accommodating portion includes a vertical wall portion connecting the bottom plate and the armrest portion. Therefore, it is possible to prevent the article placed on the bottom plate from falling from the bottom plate by the vertical wall portion.

The fourth invention adopts the configuration in which the above-mentioned standing wall portion surrounds the above-mentioned accommodation space over the entire circumference when viewed from above in the above-mentioned third invention.

According to the fourth invention as described above, since the vertical wall portion surrounds the bottom plate over the entire circumference when viewed from above, it is possible to reliably prevent the article placed on the bottom plate from falling from the bottom plate. It becomes possible.

In the fifth aspect of the invention, in any of the second to fourth inventions, the article accommodating portion is arranged so as to be exposed in the accommodating space and includes a wiring insertion portion to which wiring can be connected. To do.

According to such a fifth invention, a wiring insertion portion exposed in the accommodation space of the article accommodating portion is provided. Therefore, it is possible to store the mobile terminal such as a smartphone or tablet in the article storage unit while charging or the like.

A sixth aspect of the present invention is the fifth invention, wherein the cable is connected to the wiring insertion portion, and the guide duct is arranged in the internal space of the hollow structure and guides the cable in the internal space. Is adopted.

According to the sixth invention as described above, the cable connected to the wiring insertion portion can be guided in the internal space of the hollow structure by the guide duct. Therefore, it is possible to prevent the cable from being entangled in the internal space of the hollow structure.

In the seventh invention, in any one of the first to sixth inventions, the configuration in which an opening is provided in the front portion of the hollow structure is adopted.

According to the seventh invention as described above, since the front portion of the hollow structure is opened, the article can be taken in and out of the internal space of the hollow structure through the opening. Therefore, according to the present invention, the internal space of the hollow structure can be effectively used as a storage space for articles.

In the eighth invention, in any one of the first to seventh inventions, the backrest is connected to the support structure from the rear and extends above the elbow rest portion, and the back plate and the above. A configuration is adopted in which the back support member is supported on the back plate and the back support member that supports the seated person from the rear is provided on the side of the support structure in a state of being directed forward.

According to the eighth invention as described above, the rear part of the armrest is closed by the back plate. Therefore, it is possible to prevent a malicious person from behind from reaching for the functional unit.

According to the present invention, a hollow structure having a hollow structure, an elbow rest portion connected to the upper part of the hollow structure and provided with a through hole penetrating in the vertical direction, and a hollow structure below the elbow rest portion. It has a functional unit that is arranged in the internal space and is exposed upward through a through hole. Therefore, according to the present invention, in a chair having a backrest supported by the support structure, the functional portion can be arranged at a position lower than the lower surface of the armrest portion without projecting to the front of the support structure. It will be possible.

It is a perspective view which shows the schematic structure of the chair in one Embodiment of this invention. It is a front view which looked at the chair in one Embodiment of this invention from the front side. It is an exploded perspective view of the right side support structure provided in the chair in one Embodiment of this invention. FIG. 2 is a sectional view taken along the line AA of FIG. It is a rear perspective view of the chair in one Embodiment of this invention which omitted the back plate. It is an enlarged perspective view including the lower end of the right side plate provided with the chair in one Embodiment of this invention. It is an exploded perspective view of the right side support structure provided with the 1st modification of the chair in one Embodiment of this invention. It is sectional drawing of the left side support structure provided with the 1st modification of the chair in one Embodiment of this invention.

Hereinafter, an embodiment of the chair according to the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a schematic configuration of the chair 1 of the present embodiment. FIG. 2 is a front view of the chair 1 of the present embodiment as viewed from the front side. In the following description, the direction in which the seated person of the chair 1 faces is referred to as front, the back side of the seated person is referred to as rear, the right hand side of the seated person is referred to as right, and the left hand side of the seated person is referred to as left.

As shown in FIGS. 1 and 2, the chair 1 of the present embodiment includes a support structure 2 arranged apart from each other in the left-right direction (horizontal direction) and a seat 3 erected between the support structures 2. , A connecting mechanism 4 for connecting the seat 3 to the support structure 2 and a backrest 5 arranged behind the seat 3 are provided.

The support structure 2 is installed on each of the right side and the left side of the seat 3 so as to sandwich the seat 3 from the left-right direction, and each is grounded with respect to the ground contact surface S of the chair 1. In the following description, the support structure 2 arranged on the right side of the seat 3 is referred to as a right side support structure 6, and the support structure 2 arranged on the left side of the seat 3 is referred to as a left side support structure 7.

FIG. 3 is an exploded perspective view of the right side support structure 6 showing the internal structure. As shown in FIG. 3, the support strength member 6a, the exterior member 6b, and the right armrest panel 6c are provided. The support strength member 6a is a strength member that directly or indirectly supports the exterior member 6b and the right armrest panel 6c, and is formed of, for example, iron or a metal containing iron. The support strength member 6a is fixed to the ground contact surface S, and includes a base plate 6a1, a support column 6a2, and a support plate 6a3.

The base plate 6a1 is a rectangular plate member that is long in the front-rear direction in a plan view, and is fixed to the ground plane S by anchor bolts (not shown). The support column 6a2 is a columnar member having a rectangular cross section and is erected upward from the central portion in the front-rear direction of the base plate 6a1. A seat 3 is connected to the support column 6a2 via a connecting mechanism 4. That is, the load received from the seated person is received by the support strength member 6a via the seat 3 and the connecting mechanism 4. The support plate 6a3 is a rectangular plate member that is long in the front-rear direction in a plan view, and is connected to the upper end of the support column 6a2. The support plate 6a3 is arranged with the front and back surfaces facing up and down so as to be parallel to the base plate 6a1, and supports the right armrest panel 6c from below.

The exterior member 6b is a member that is supported by the support strength member 6a and surrounds the support strength member 6a. In the present embodiment, the exterior member 6b is arranged on the front surface portion 6b1 arranged in front of the support strength member 6a, the right side portion 6b2 arranged on the right side of the support strength member 6a, and the left side of the support strength member 6a. It has a left side portion 6b3 and is formed of, for example, wood. Such an exterior member 6b is connected to the right armrest panel 6c supported from below by the support strength member 6a, and is supported by the support strength member 6a via the right armrest panel 6c. The exterior member 6b supported in this way surrounds the support strength member 6a from the front and both left and right sides.

The front surface portion 6b1 is a plate-shaped portion arranged with the front and back surfaces facing in the front-rear direction, and the right end edge is connected to the front end edge of the right side portion 6b2 and the left end edge is connected to the front end edge of the left side portion 6b3. There is. The right side portion 6b2 is a plate-shaped portion arranged with the front and back surfaces facing in the left-right direction, and the front end edge is connected to the right end edge of the front end portion 6b1. Further, the right side portion 6b2 is inclined so that the rear end edge is displaced forward from the upper side to the lower side when viewed from the left-right direction. The left side portion 6b3 is a plate-shaped portion arranged with the front and back surfaces facing in the left-right direction, and the front end edge is connected to the left end edge of the front end portion 6b1. The left side portion 6b3 is installed in parallel with the right side portion 6b2 with the support strength member 6a interposed therebetween.

The right armrest panel 6c is a portion having an upper surface (upper surface of the support structure 2) on which the seated person can place his / her arm, and forms an upper surface portion of the support structure 2. The right armrest panel 6c has a larger area than the support plate 6a3 of the support strength member 6a in a plan view, and the upper end of the exterior member 6b is connected to the outer peripheral portion from below. The material of the right armrest panel 6c is not particularly limited, but wood can be used as in the case of the exterior member 6b, for example. In the present embodiment, the right armrest panel 6c has a plate shape having a small vertical thickness dimension, but the thickness dimension of the right armrest panel 6c can be changed more greatly.

The left side support structure 7 includes a hollow structure 7a, a left side armrest panel 7b (elbow rest portion), an article accommodating portion 7c, a cable 7d, and a guide duct 7e. The hollow structure 7a has a right side plate 7a1, a left side plate 7a2, and a bottom portion 7a3, and is a portion in which the space surrounded by the right side plate 7a1, the left side plate 7a2, and the bottom portion 7a3 is hollow.

The right side plate 7a1 is a plate-shaped portion in which the front and back surfaces are arranged in the left-right direction, and is inclined so that the rear end edge is displaced forward from the upper side to the lower side when viewed from the left-right direction. ing. FIG. 5 is a rear perspective view of the chair 1 in which the back plate 5a, which will be described later, is omitted from the backrest 5. As shown in this figure, a groove portion 7a4 in which the guide duct 7e is housed is provided at the rear end edge of the right side plate 7a1. Further, FIG. 6 is an enlarged perspective view including the lower end of the right side plate 7a1. As shown in this figure, the right side plate 7a1 is provided with a notch portion 7a5 that exposes the lower end portion of the groove portion 7a4 toward the right side. The cutout portion 7a5 is an opening for pulling out the cable 7d in the guide duct 7e to the outside of the left side support structure 7.

The left side plate 7a2 is a plate-shaped portion in which the front and back surfaces are arranged in the left-right direction, and is inclined so that the rear end edge is displaced forward from the upper side to the lower side when viewed from the left-right direction. ing. The left side plate 7a2 is installed parallel to the right side plate 7a1 with the bottom portion 7a3 sandwiched from the left-right direction. The bottom portion 7a3 is a plate-shaped portion arranged with the front and back surfaces facing in the vertical direction, and is connected to the lower end edge of the right side plate 7a1 and the lower end edge of the left side plate 7a2.

The distance between the right side plate 7a1 and the left side plate 7a2 is larger than the distance between the right side portion 6b2 and the left side portion 6b3 of the right side support structure 6. That is, the left-side support structure 7 has a width dimension in the left-right direction larger than that of the right-side support structure 6, and is stably contacted even if the support strength member 6a such as the right-side support structure 6 is not provided. It can be installed on the ground S.

The hollow structure 7a has an internal space K opened upward by the right side plate 7a1, the left side plate 7a2, and the bottom portion 7a3, and the shape seen from the front side is U-shaped. .. The left armrest panel 7b is connected to the upper end of the hollow structure 7a so as to close the internal space K of the hollow structure 7a from above. The material of the hollow structure 7a and the left armrest panel 7b is not particularly limited, but wood can be used, for example. By connecting the left elbow panel 7b to the hollow structure 7a in this way, the upper opening of the hollow structure 7a is closed, so that the structure composed of the hollow structure 7a and the left elbow panel 7b has high strength. It becomes. The left side surface of the seat 3 is rotatably connected to the right side plate 7a1 of such a hollow structure 7a via a connecting mechanism 4.

Further, the front portion of the hollow structure 7a is open. That is, the internal space K of the hollow structure 7a is opened toward the front. The internal space K of such a hollow structure 7a can be used as a storage space for luggage that can be taken in and out from the front.

The left armrest panel 7b is a plate-shaped portion having an upper surface (upper surface of the left side support structure 7) on which a seated person can place an arm, and forms an upper surface portion of the left side support structure 7. In the present embodiment, the left armrest panel 7b has a plate shape having a small vertical thickness dimension, but the thickness dimension of the left armrest panel 7b can be changed more greatly. An opening 7b1 (through hole) for exposing the article accommodating portion 7c is provided in the central portion of the left armrest panel 7b in a plan view. The opening 7b1 has a rectangular shape in a plan view, and is provided so as to penetrate the left armrest panel 7b in the vertical direction.

The article accommodating portion 7c is a container-shaped portion whose inside is a storage space Ka for articles. FIG. 4 is a cross-sectional view taken along the line AA of FIG. As shown in this figure, the article accommodating portion 7c includes a bottom plate 7c1, a standing wall portion 7c2, and a power socket 7c3 (wiring insertion portion). The bottom plate 7c1 is arranged in the internal space K of the hollow structure 7a, and is arranged below the lower surface of the left armrest panel 7b. Such a bottom plate 7c1 is arranged directly below the opening 7b1 of the left armrest panel 7b, and can support the article housed in the article accommodating portion 7c from below. That is, the bottom plate 7c1 has an article placing surface capable of supporting the article from below. The vertical wall portion 7c2 is a portion that connects the bottom plate 7c1 and the lower surface of the left armrest panel 7b. The standing wall portion 7c2 is provided so as to surround the accommodation space Ka over the entire circumference when viewed from above. The space surrounded by the bottom plate 7c1 and the standing wall portion 7c2 is regarded as the accommodation space Ka, and the article accommodating portion 7c is connected to the left armrest panel 7b so that the accommodation space Ka is communicated with the opening 7b1 of the left armrest panel 7b. It is fixed.

The power socket 7c3 is a device having an outlet to which a power cable can be connected, and is fixed to the vertical wall portion 7c2 so that the outlet is exposed in the accommodation space Ka. As shown in FIG. 1, in the present embodiment, the outlet of the power socket 7c3 has a shape in which an outlet plug can be inserted. However, it is also possible to make the insertion port of the power socket 7c3 into a shape to which a USB (Universal Serial Bus) cable can be connected. Further, a plurality of outlets may be provided in the power socket 7c3.

As shown in FIG. 5, the cable 7d is connected to the power socket 7c3 and is a wiring for supplying power from an external power source to the outlet of the power socket 7c3. The cable 7d is drawn from an external power source (not shown), enters the inside of the left side support structure 7 through the notch 7a5, and is routed to the power socket 7c3 via the guide duct 7e.

The guide duct 7e is housed in a groove portion 7a4 provided in the right side plate 7a1 of the left side support structure 7, and has a C-shape open toward the right side. The guide duct 7e extends along the groove portion 7a4, and is arranged so that the opened right side is closed by the back surface of the right side plate 7a1. Such a guide duct 7e guides the cable 7d along the vertical direction.

The seat 3 is erected between two support structures 2 (right side support structure 6 and left side support structure 7) adjacent to each other in the left-right direction via a connecting mechanism 4. That is, the support structure 2 is arranged on each of the left side and the right side of the seat 3. Such a seat 3 is between a sitting posture in which the seat surface is directed upward so that the user can sit and a storage posture in which the seat surface is directed rearward so as to widen the space in front of the seat 3. It is rotatably supported by the connecting mechanism 4.

The connecting mechanism 4 rotatably connects the seat 3 to the support structure 2. The connecting mechanism 4 is provided on each of the left and right sides of the seat 3. That is, one seat 3 is erected between the support structures 2 by two connecting mechanisms 4. Further, these connecting mechanisms 4 urge the seat 3 toward the accommodation posture. Therefore, the seat 3 is urged to the accommodation posture when the user is not seated. Therefore, when the user is not seated, a wide space is formed with respect to the front of the seat 3, and a person can easily pass in front of the chair 1.

The backrest 5 is a member arranged behind each seat 3 and supporting the seated person from the back surface. The backrest 5 includes a back plate 5a and a back support member 5b, as shown in FIGS. 1 and 2, for example. As shown in FIG. 4, the back plate 5a is inclined so as to be displaced forward from the upper end to the lower end, and is connected to both the left and right support structures 2 from the rear by the support structure 2. It is supported. The back plate 5a has a width dimension from the right end of the right side support structure 6 to the left end of the left side support structure 7.

In the chair 1 of the present embodiment, the entire area on the back surface side is covered with the back plate 5a. Therefore, the internal space of the exterior member 6b and the internal space K of the hollow structure 7a are closed from behind by the back plate 5a. Further, the back plate 5a is arranged at a position where the upper end is higher than the upper end of the back support member 5b that supports the back of the seated person. That is, the back plate 5a extends above the right armrest panel 6c and the left armrest panel 7b. By covering the entire back surface of the chair 1 with such a back plate 5a, it is possible to prevent a malicious person from reaching for the article accommodating portion 7c or the like from the rear side of the chair 1.

The back support member 5b is a member having a cushioning property fixed to the front surface of the back plate 5a, and supports the seated person from behind by abutting the back of the seated person. That is, the back support member 5b is supported with the back support surface 5b1 that supports the seated person from the rear facing forward. Further, the backrest member 5b has a width dimension in the left-right direction smaller than the separation dimension between the support structures 2 adjacent in the left-right direction, and is arranged between the support structures 2 adjacent in the left-right direction. That is, each back support member 5b is arranged on the side of the support structure 2 in the left-right direction.

The chair 1 of the present embodiment as described above includes a grounded support structure 2 and a backrest 5 supported by the support structure 2. Further, the left side support structure 7 is a hollow structure 7a, a left side armrest panel 7b connected to the upper part of the hollow structure 7a and provided with an opening 7b1 penetrating in the vertical direction, and a left side armrest panel. It has an article accommodating portion 7c that is arranged in the internal space K of the hollow structure 7a below the 7b and is exposed upward through the opening 7b1.

According to the chair 1 of the present embodiment, the internal space K of the hollow structure 7a is formed below the left armrest panel 7b, and the article accommodating portion 7c is arranged in the internal space K of the hollow structure 7a. At the same time, the article accommodating portion 7c can be accessed through the opening 7b1 provided in the left armrest panel 7b. That is, according to the chair 1 of the present embodiment, the article accommodating portion 7c can be arranged at a position lower than the lower surface of the left armrest panel 7b. Therefore, according to the chair 1 of the present embodiment, in the chair 1 having the backrest 5 supported by the left side support structure 7, the chair 1 does not protrude forward from the left side support structure 7 and is from the lower surface of the left side armrest panel 7b. It is possible to arrange the article accommodating portion 7c at the lower position.

Further, in the chair 1 of the present embodiment, an article accommodating portion 7c having an accommodating space Ka communicated with the opening 7b1 is provided as a functional portion. The storage space Ka of the article storage portion 7c is communicated with the opening 7b1 provided in the left armrest panel 7b. Therefore, according to the chair 1 of the present embodiment, the depth dimension of the article accommodating portion 7c can be made larger than the thickness dimension of the left armrest panel 7b, and further, the accommodating space Ka of such an article accommodating portion 7c. Articles can be taken in and out through the opening 7b1 provided in the left armrest panel 7b. Therefore, according to the chair 1 of the present embodiment, it is not necessary to project the article accommodating portion 7c to the front of the left armrest panel 7b, and the depth dimension of the accommodating space Ka of the article accommodating portion 7c is sufficiently large. Is possible.

Further, in the chair 1 of the present embodiment, the article accommodating portion 7c has an article placing surface capable of supporting the article from below, and the bottom plate 7c1 located below the left armrest panel 7b, the bottom plate 7c1 and the left armrest. It has a vertical wall portion 7c2 that connects to the panel 7b. Therefore, it is possible to prevent the article placed on the bottom plate 7c1 from falling from the bottom plate 7c1 by the vertical wall portion 7c2.

Further, in the chair 1 of the present embodiment, the standing wall portion 7c2 surrounds the accommodation space Ka over the entire circumference when viewed from above. Therefore, it is possible to reliably prevent the article placed on the bottom plate 7c1 from falling from the bottom plate 7c1.

Further, in the chair 1 of the present embodiment, the article accommodating portion 7c is provided with a power socket 7c3 that is exposed and arranged in the accommodating space Ka and to which wiring can be connected. Therefore, it is possible to store the mobile terminal such as a smartphone or tablet in the article storage unit 7c while charging or the like.

Further, the chair 1 of the present embodiment includes a cable connected to the power socket 7c3 and a guide duct 7e arranged in the internal space K of the hollow structure 7a and guiding the cable in the internal space K. There is. According to the chair 1 of the present embodiment as described above, the cable 7d connected to the power socket 7c3 can be guided in the internal space K of the hollow structure 7a by the guide duct 7e. Therefore, it is possible to prevent the cable 7d from being entangled in the internal space K of the hollow structure 7a.

Further, in the chair 1 of the present embodiment, an opening is provided in the front portion of the hollow structure 7a. Therefore, the article can be taken in and out of the internal space K of the hollow structure 7a through the opening of the hollow structure 7a. Therefore, according to the chair 1 of the present embodiment, the internal space K of the hollow structure 7a can be effectively used as the storage space Ka of the article.

Further, in the chair 1 of the present embodiment, the backrest 5 is connected to the left side support structure 7 from the rear and is supported by the back plate 5a and the back plate 5a extending above the left armrest panel 7b. At the same time, it has a back support member 5b arranged on the side of the left side support structure 7 in a state where the back support surface 5b1 that supports the seated person from the rear is directed forward. According to the chair 1 of the present embodiment as described above, the rear side of the left armrest panel 7b is closed by the back plate 5a. Therefore, it is possible to prevent a malicious person from behind from reaching for the article accommodating portion 7c.

Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to the above embodiment. The various shapes and combinations of the constituent members shown in the above-described embodiment are examples, and can be variously changed based on design requirements and the like without departing from the spirit of the present invention.

For example, FIG. 7 is an exploded perspective view of the right side support structure 6 included in the first modification of the chair 1 of the above embodiment. As shown in this figure, in the first modification, a through hole 6c1 that penetrates vertically with respect to the right armrest panel 6c is provided, and the internal space of the exterior member 6b is exposed so as to be exposed from the through hole 6c1. Is provided with an article accommodating portion 6d. Even in such a modified example, since a part of the article accommodating portion 6d is arranged in the internal space of the exterior member 6b which is a hollow structure, the depth dimension of the article accommodating portion 6d is the thickness dimension of the right armrest panel 6c. It is possible to secure a large amount beyond the above.

Further, FIG. 8 is a cross-sectional view of the left side support structure 7 included in the second modification of the chair 1 of the above embodiment. As shown in this figure, in this modified example, the bottom plate 7c1 of the article accommodating portion 7c is not provided, and the power socket 7c3 is suspended and supported. Even when such a configuration is adopted, since the power socket 7c3 is arranged in the internal space K of the hollow structure 7a as a functional portion, the internal space K can be effectively used. The functional unit is not limited to the article storage unit 7c and the power socket 7c3. For example, an umbrella holder or a cane holder may be arranged in the internal space K of the hollow structure 7a as a functional unit.

Further, in the above-described embodiment, the configuration of the chair 1 having only one seat 3 has been described. However, the present invention is not limited to this. For example, it is also possible to apply the present invention to a chair in which three or more support structures are provided and seats are arranged between the support structures.

1 ... Chair, 2 ... Support structure, 3 ... Seat, 4 ... Connecting mechanism, 5a ... Back plate, 5b ... Back support member, 5b1 ... Back contact surface, 6 ... Right support structure, 6b ... Exterior member, 6c ... Right side armrest panel, 6c1 ... Through hole, 6d ... Article storage part (functional part), 7 ... Left side support structure, 7a ... Hollow structure, 7a1 ... Right side plate , 7a2 ... Left side plate, 7a3 ... Bottom, 7a4 ... Groove, 7a5 ... Notch, 7b ... Left armrest panel (elbow rest), 7b1 ... Opening, 7c ... Article storage (functional part), 7c1 ... bottom plate, 7c2 ... standing wall, 7c3 ... power socket (wiring insertion part), 7d ... cable, 7e ... guide duct, K ... internal space, Ka ... accommodation space, S ... contact Ground

Claims (8)

A chair having a grounded support structure and a backrest supported by the support structure.
The support structure is
A hollow structure that is hollow and
An elbow rest portion connected to the upper part of the hollow structure and provided with a through hole penetrating in the vertical direction.
A chair characterized by having a functional portion arranged in the internal space of the hollow structure below the armrest portion and exposed upward through the through hole. The chair according to claim 1, wherein the functional part is an article storage part having a storage space communicated with the through hole. The article storage unit
A bottom plate that has an article placing surface that can support the article from below and is located below the armrest.
The chair according to claim 2, further comprising a vertical wall portion connecting the bottom plate and the armrest portion. The chair according to claim 3, wherein the standing wall portion surrounds the accommodation space over the entire circumference when viewed from above. The chair according to any one of claims 2 to 4, wherein the article accommodating portion includes a wiring insertion portion that is exposed and arranged in the accommodating space and to which wiring can be connected. With the cable connected to the wiring insertion part,
The chair according to claim 5, wherein the chair is arranged in the internal space of the hollow structure and is provided with a guide duct for guiding the cable in the internal space. The chair according to any one of claims 1 to 6, wherein an opening is provided in the front portion of the hollow structure. The backrest is
A back plate that is connected to the support structure from the rear and extends above the armrest.
A claim characterized by having a back support member which is supported by the back plate and is arranged on the side of the support structure in a state where the back contact surface which supports the seater from the rear is directed forward. Item 1. The chair according to any one of Items 1 to 7.

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