JP2023134275A - Chair - Google Patents

Abstract

To provide a chair that can prevent a garment of a seated person from being caught when a seat body is in a use posture, and can make the external appearance excellent.SOLUTION: A chair includes a seat body 3 and a leg body 2. The leg body can switch the seat body between a use posture and a storage posture. The leg body has a pair of front legs 21 and a pair of rear legs 22 separated in a chair width direction. The front and rear leg pair at one side in the chair width direction and the front and rear leg pair at the other side in the chair width direction are connected by a horizontal connection rod 24 extending in the chair width direction. The seat body includes a frame-shaped frame 29 and a load transmission part. The frame-shaped frame has a front portion support rod, a rear portion support rod, and left and right side portion support rods. The load transmission part projects to an opposite side to a seat side of a seating face from an inner area in the chair width direction beyond the side portion support rod, of any one of the front portion support rod and the rear portion support rod. The projecting portion of the load transmission part is abutted on a top face of the horizontal connection rod in a state that a seat plate is in a use posture.SELECTED DRAWING: Figure 1

Description

The present invention relates to a chair whose seat body can be flipped up.

In order to make the storage space more compact when not in use, a chair is known in which the seat body can be flipped up relative to the leg bodies (for example, see Patent Document 1).

The chair described in Patent Document 1 includes a seat body on which a seated person sits, and legs that rotatably support the rear part of the seat body about an axis along the width direction of the chair. By rotating the seat body about its axis along the width direction of the chair, the seat plate can be switched between a use position in which the seat surface faces upward and a storage position in which the seat face faces rearward. The leg body includes a pair of front legs that are spaced apart in the chair width direction, and a pair of rear legs that are spaced apart in the chair width direction on the rear side of the front legs. Each front leg and the left and right corresponding rear legs are connected by a pair of front and rear extending portions (horizontal portions) extending in the front and rear direction. A support member extending in the width direction of the chair is installed on the upper surface of the front end portion of the left and right front-rear extension portions.
In the case of this chair, when the seat is in the usage position, the back surface of the front end of the seat comes into contact with the top surface of the support member on the leg side, so that the sitting load input to the seat is received by the legs. .

Patent No. 4256041

However, in the chair described in Patent Document 1, when the seat body is in the use posture, the back surface of the front side of the seat body is Contact from above. For this reason, there is a concern that when the clothes of a seated person sitting on the seat body hang down from the front side of the seat body, the clothes of the seated person may be caught between the seat body and the support member on the leg side. be done.

Further, in the chair described in Patent Document 1, the support member on the leg side extends in the chair width direction to have substantially the same width as the seat body at the front end of the front-rear extension portion. For this reason, when the seat in the usage position is viewed from above the side, the contact portion between the seat and the support member on the leg side is visible from the outside, and there is a concern that the appearance may be impaired.

SUMMARY OF THE INVENTION An object of the present invention is to provide a chair that can prevent the clothes of the seated person from getting caught when the seat is in the usage position, and that also has a good appearance.

The chair according to the present invention employs the following configuration in order to solve the above problems.
A chair according to the present invention includes a seat body having a seat surface on which a seated person sits, and a front or rear part of the seat body connected to be rotatable about an axis along the width direction of the chair, and the seat body having: The chair includes legs supporting the chair so as to be switchable between a usage position in which the seat faces upward and a storage position in which the seat faces backward or forward, and the legs are spaced apart in the width direction of the chair. a pair of front legs arranged at a distance in the chair width direction on the rear side of the front legs, and at least one of the front legs and the rear legs on the same side in the chair width direction. , a front and rear leg on one side in the width direction of the chair is provided with an integral or separate front and rear extending portion extending in the front and rear direction and connecting the front leg and the rear leg, and the front and rear legs are connected by the front and rear extending portions, respectively; The pair of front and rear legs on the other side in the width direction of the chair are connected to each other by a horizontal connecting rod extending in the width direction of the chair, and the seat body has a front support along the front side of the seat body. a frame-like frame having a rod, a rear support rod along the rear side of the seat, a pair of side support rods along each left and right side of the seat, and either the front support rod or the rear support rod. one of the pair of side support rods protrudes from an area inside in the chair width direction toward a side opposite to the seating side of the seat surface, and when the seat plate is in the use posture, the protruding portion A load transmitting portion that comes into contact with the upper surface of the horizontal connecting rod is characterized.

With the above configuration, when the seat is in the use position, the protruding part of the load transmission part provided on the seat comes into contact with the upper surface of the horizontal connecting rod on the leg side, so that the seating load input to the seat is transferred to the load. It is supported by the horizontal connecting rod on the leg side through the transmission part.
In this configuration, the load transmission section on the seat side is arranged in the inner region in the chair width direction than the left and right side support rods of the frame-like frame, and when the seat body is in the use posture, the load transmission section on the side of the frame-like frame It comes into contact with the horizontal connecting rod on the leg side at a position inside the support rod in the chair width direction. Therefore, even if the seated person's clothing hangs down from the side of the seat when the seated person sits on the seat, the clothes will be blocked by the side support rods of the frame and the contact portion will be blocked. direction becomes difficult to displace. Therefore, it is possible to prevent the clothes of the seated person from being caught in the contact portion between the load transmitting portion on the seat side and the horizontal connecting rod on the leg side.
In addition, in this configuration, the load transmitting part on the seat side is located inside the left and right side support rods of the frame in the chair width direction, so when the seat is in the use position, the seat When viewed from above, the load transmission section becomes difficult to see from the outside. Therefore, when this configuration is adopted, the appearance from the outside becomes good.

The horizontal connecting rod connects a pair of support arm portions that protrude upward from each of the front and rear extension portions, and extends in the width direction of the chair to connect the pair of support arm portions to each other, and the horizontal connection rod connects the pair of support arm portions to each other in the chair width direction. In this state, the load transmitting section may be in contact with a cross beam section.

In this case, the cross beam part of the horizontal connecting rod on the leg side is arranged on the upper side via the support arm part. As a result, it is possible to reduce the protruding height of the load transmitting portion on the seat body side that comes into contact with the cross beam portion of the horizontal connecting rod when the seat body is in the use posture. Therefore, when this configuration is adopted, when the seat body is in the storage position, the load transmitting portion does not protrude significantly toward the front side or the rear side of the seat body, and the storability of the chair increases.

The distance between the outer ends of the pair of front legs in the chair width direction on the front end side is narrower than the distance between the inner ends of the pair of rear legs in the chair width direction on the rear end side. This is desirable.

In this case, when stacking a plurality of chairs one behind the other with the seats in the storage position, the left and right front legs of the rear chair can be inserted between the left and right rear legs of the front chair. For this reason, it becomes possible to arrange a plurality of chairs in a compact manner one on top of the other in the front and back.

The distance between the front and rear extending portions of the pair of leg bodies in the chair width direction may be narrowed toward the front.

In this case, when stacking a plurality of chairs one behind the other with the seats in the stowed position, the latter chair can be inserted deeper between the left and right rear legs of the front chair and stacked one on top of the other. Therefore, when this configuration is adopted, it becomes possible to arrange a plurality of chairs one on top of the other more compactly in the front and back.

In the chair according to the present invention, when the seat body is in the use posture, the protruding portion of the load transmitting portion is attached to the horizontal connecting rod on the leg side at a position inside the chair width direction from the left and right side support rods of the frame-like frame. The structure is such that they touch each other. Therefore, when the chair according to the present invention is adopted, it is possible to reliably prevent the seated person's clothes from being caught between the abutting portions on the seat side and the leg side, and also Since the contact portion on the body side is difficult to see from the outside, the appearance of the chair can be improved.

FIG. 1 is a perspective view of a chair according to an embodiment. FIG. 2 is a side view of the chair of the embodiment when the seat body is in the usage position. FIG. 3 is a plan view of the skeleton of the seat body of the chair according to the embodiment. FIG. 4 is a side view of the chair of the embodiment when the seat body is in the storage position.

Embodiments of the present invention will be described below based on the drawings.
In the following description, the direction indicated by the arrow FR in the figure, in which the front of a person seated in a normal posture on the chair 1 faces, will be referred to as "front", and the opposite direction will be referred to as "rear". Regarding "up", "down", "left", and "right", the direction indicated by the arrow UP in the figure on the upper side of the person sitting in the normal posture on chair 1 is "up", and the opposite direction is "up". The direction indicated by the arrow LH in the figure on the left side of the person sitting in the chair 1 in a normal posture is called "left," and the opposite direction is called "right." Furthermore, the direction facing left and right of the chair 1 will be referred to as the "chair width direction."

FIG. 1 is a perspective view of a chair 1 according to the present embodiment, viewed diagonally from above and to the left of the front. Moreover, FIG. 2 is a side view of the chair 1 seen from the left side. Note that in FIG. 2, some members (cushion body 30) are omitted.
As shown in these figures, the chair 1 includes legs 2, a seat 3, a backrest 4, and armrests 5.

The leg body 2 includes a pair of front legs 21 that are spaced apart in the chair width direction, and a pair of rear legs 22 that are spaced apart in the chair width direction on the rear side of the front legs 21. Casters 15 that can roll on a ground surface are attached to the lower ends of each of the front legs 21 and the rear legs 22. Each of the left and right front legs 21 is integrally formed with a front-rear extending portion 23 extending in the front-rear direction from the upper end of the upright portion standing upward from the lower end toward the rear side. The rear end portion of each front-rear extending portion 23 is connected to substantially the center portion in the vertical direction of the left and right corresponding rear legs 22 .
The front leg 21 and the rear leg 22 on one side in the width direction of the chair are connected to each other through the front and rear extensions 23, thereby forming a pair of front and rear legs on one side. Similarly, the front legs 21 and the rear legs 22 on the other side in the width direction of the chair are connected to each other through the front and back extensions 23, thereby forming a pair of front and rear legs on the other side. The pair of front and rear legs on one side and the pair of front and rear legs on the other side are connected to each other by a horizontal connecting rod 24 at a portion closer to the front than approximately the center portion in the front and rear direction of the front and rear extension portion 23 . In this embodiment, the left and right front and rear extending portions 23 are connected to each other by a horizontal connecting rod 24 .

The horizontal connecting rod 24 includes a support arm portion 24a that projects upward from the upper surface of each of the left and right front and rear extension portions 23, and a cross beam that extends along the width direction of the chair and connects the upper portions of the left and right support arm portions 24a. A portion 24b is provided. The left and right support arms 24a are inclined upward and inward in the chair width direction.

The distance between the outer ends of the left and right front legs 21 on the front end side in the chair width direction is narrower than the distance between the inner ends of the left and right rear legs 22 on the rear end side in the chair width direction. ing. The front-rear extending portion 23 connects the substantially central portion of the rear leg 22 in the vertical direction and the upper end portions of the left and right corresponding front legs 21 . The front-rear extending portion 23 is coupled to the inner surface of the rear leg 22 in the chair width direction, curves forward from the inner surface of the rear leg 22 in the chair width direction, and then extends forward. Further, the front and rear extending portions 23 are inclined inward and downward in the chair width direction from the rear leg 22 side toward the front leg 21 side. Therefore, the distance between the left and right front-rear extending portions 23 in the chair width direction narrows toward the front side.
With this configuration of the leg body 2, the chair 1 of the present embodiment allows the left and right front legs 21 of the rear chair 1 to be inserted between the left and right rear legs 22 of the front chair 1 when not in use. nesting is possible).

Further, the left and right rear legs 22 are inclined upwardly and forwardly at a predetermined angle from the lower ends to which the casters 15 are attached. A pivot arm 25 for rotatably supporting the rear portion of the seat body 3 is provided above the connection position of the left and right rear legs 22 with the front and rear extending portions 23 . The pivot arm 25 extends forward from the rear leg 22. The pivot arm 25 supports a rotation shaft (not shown) that extends in the width direction of the chair. The rotation shaft rotatably supports the rear portion of the seat body 3. The seat body 3 is capable of flipping up and rotating about the axis of the rotation axis of the pivot arm 25.

Mounting seats 26 to which the backrest 4 and armrests 5 are attached are formed at the upper ends of the left and right rear legs 22. Support protrusions 27 that support the left and right sides of the backrest 4 are protruded from the mounting seat 26 . The backrest 4 is fixed to the mounting seat 26 by fastening bolts or the like, with left and right side portions fitted into support protrusions 27. The armrest 5 is fixed to the mounting seat 26 by bolting or the like while in contact with the lower end of the side of the backrest 5. The armrest 5 extends from the upper end of the rear leg 22 toward the front side.

As shown in FIG. 1, the seat body 3 includes a frame 29 having a rectangular shape in plan view, and a cushion body 30 supported by the frame 29. The frame 29 is made of metal, hard resin, or the like. The cushion body 30 is configured, for example, by placing a cushioning material such as urethane on the upper surface of a rectangular seat plate, and covering the upper surface and surrounding area of the cushioning material with a skin material.
Note that the structure of the seat body 3 is not limited to this. The seat body 3 may have, for example, a structure in which a tension material is stretched on the upper surface side of the frame-like frame 29.

FIG. 3 is a plan view showing the skeleton of the seat body 3. As shown in FIG. In addition, in FIG. 3, a part of the front leg 21 and the rear leg 22 of the leg body 2 are omitted for convenience of illustration. Further, in FIG. 3, the left and right front and rear extending portions 23 and the horizontal connecting rods 24 of the leg body 2 are shown by imaginary lines.
The frame-like frame 29 includes a front support rod 29f along the front side of the seat body 3, a rear support rod 29r along the rear side of the seat body 3, and a pair of side portions along the left and right sides of the seat body 3. It has a support rod 29s (side frame). Support pieces 31 (see FIGS. 1 and 2) that bulge upward in a mountain shape are integrally formed at the rear portions of the left and right side support rods 29s. The left and right support pieces 31 are arranged between the left and right pivot arms 25 on the leg body 2 side, and are rotatably supported by the respective axes of the pivot arms 25.

FIG. 4 is a side view of the chair 1 showing a state in which the seat body 3 is flipped upward about the axis of the pivot arm 25. As shown in FIG.
By rotating the seat 3 about the axis of the pivot arm 25, the seat 3 can be used in two positions: one in use (see Figure 2) with the seat 3a facing upwards, and the other in storage with the seat 3a facing backwards. It is said that it is possible to switch between posture and. The seat body 3 is maintained substantially horizontally when in the use position, and the front side is flipped up toward the backrest 4 when in the storage position.

A load transmitting member 40 (load transmitting portion) is connected to the front support rod 29f of the frame-like frame 29 when the seat body 3 is in the use posture. There is. The load transmission member 40 has a pair of arm parts 40a whose one ends are connected to the front support rod 29f, and a connecting beam part 40b which connects the extending ends of the arm parts 40a. The pair of arm portions 40a protrude downward from the front support rod 29f toward the rear side. The load transmission member 40 is formed of, for example, a solid metal rod. The load transmission member 40 is provided so as to protrude from the left and right side support rods 29s of the frame-like frame 29 in the inner region in the chair width direction.

In the load transmission member 40, when the seat body 3 is in the use posture, the connecting beam portion 40b abuts the upper surface of the horizontal connecting rod 24 (horizontal beam portion 24b) on the leg body 2 side. Here, since the load transmission member 40 is arranged in the inner region in the chair width direction than the left and right side support rods 29s, the connection beam portion 40b of the load transmission member 40 and the horizontal connection rod 24 on the leg 2 side are connected to each other. The abutting portions are located on the inner side in the chair width direction than the left and right side support rods 29s.
The seat body 3 is maintained in a substantially horizontal posture by the connection beam portion 40b of the load transmission member 40 coming into contact with the horizontal connection rod 24 on the leg body 2 side, and the load of the seated person applied to the seat body 3 is transferred to the legs. It is received by body 2.

When a seated person actually sits on the chair 1 of this embodiment, the seat body 3 is placed in the usage position shown in FIGS. 1 and 2, and the connection beam of the load transmission member 40 below the seat body 3 is 40b is brought into contact with the upper surface of the horizontal connecting rod 24 on the leg body 2 side. When a seated person sits on the seat surface in this state, the sitting load is supported by the horizontal connecting rod 24 on the leg body 2 side through the load transmission member 40. At this time, the contact portion between the connecting beam portion 40b of the load transmitting member 40 and the horizontal connecting rod 24 on the leg body 2 side is sufficiently spaced downward from the seat surface 3a of the seat body 3, and It is arranged at a position offset inward in the chair width direction from the side part (side support rod 29s).

Further, when storing a plurality of chairs 1 in a storage space all at once, the seat body 3 of each chair 1 is flipped upward to take the storage position as shown in FIG. Next, in this state, the front legs 21 of the rear chair 1 are inserted from the rear side between the left and right rear legs 22 of the front chair 1, and the left and right longitudinal extensions 23 of the rear chair 1 are inserted between the left and right rear legs 22 of the front chair 1. It is inserted between the left and right front and rear extensions 23 of the chair 1. By stacking the rear chair 1 on the rear of the front chair 1 in this way, the overall front-to-back width becomes narrower, making it possible to arrange the chair 1 compactly in a storage space. Note that three or more chairs 1 can be stacked one on top of the other in the same way.

As described above, in the chair 1 of the present embodiment, when the seat body 3 is in the use posture, the connecting beam portion 40b of the load transmission member 40 is wider than the left and right side support rods 29s of the frame-like frame 29. The structure is such that it comes into contact with the horizontal connecting rod 24 on the leg body 2 side at the inner position of the direction. Therefore, even if the clothes of the seated person may hang downward from the sides of the seat body 3, it is ensured that the clothes of the seated person are not caught between the abutting portions of the seat body 3 side and the leg body 2 side. can be prevented. Moreover, when the seat body 3 is viewed from the upper side, the load transmission member 40 on the seat body 3 side becomes difficult to see from the outside.
Therefore, when the chair 1 of this embodiment is adopted, it is possible to prevent the clothes of the seated person from being caught when the seat body 3 is in the usage position, and it is possible to improve the appearance.

In addition, in the chair 1 of the present embodiment, the horizontal connecting rod 24 on the leg side includes a pair of support arm portions 24a that protrude upward from each front and rear extension portion 23, and a pair of support arm portions that extend in the width direction of the chair. A cross beam portion 24b that connects the two portions 24a is provided. The load transmission member 40 on the side of the seat 3 comes into contact with the horizontal beam portion 24b from above when the seat 3 is in the use position. With this configuration, the horizontal beam portion 24b of the horizontal connecting rod 24 on the leg side is disposed above the front-rear extension portion 23 via the support arm portion 24a, and the load is transmitted to the seat body 3 side accordingly. It becomes possible to reduce the protrusion height of the member 40. Therefore, when this configuration is adopted, when the seat body 3 is in the storage position, the load transmission member 40 does not protrude significantly toward the front side of the seat body 3, and the storability of the chair 1 is improved.

In addition, in the chair 1 of the present embodiment, the distance between the outer ends in the chair width direction on the front end side of the left and right front legs 21 is greater than the distance between the ends on the inner side in the chair width direction on the rear end side of the left and right rear legs 22. It is narrower than the spacing between them. Therefore, when stacking a plurality of chairs 1 one after the other with the seat body 3 in the storage position, the left and right front legs 21 of the rear chair 1 can be inserted between the left and right rear legs 22 of the front chair 1. . Therefore, when this configuration is adopted, a plurality of chairs 1 can be arranged compactly one on top of the other in the front and back.

Further, in the chair 1 of the present embodiment, the distance between the pair of front and rear extending portions 23 on the leg body 2 side in the chair width direction narrows toward the front. For this reason, when stacking a plurality of chairs 1 back and forth with the seat body 3 in the storage position, it is possible to insert the rear chair 1 more deeply between the left and right rear legs 22 of the front chair 1 and stack them back and forth. can. Therefore, when this configuration is adopted, a plurality of chairs 1 can be arranged one on top of the other more compactly in the front and back.

Note that the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the gist thereof.
For example, in the above embodiment, the rear part of the seat 3 is supported by the legs 2 so as to be able to flip up and rotate around the axis along the width direction of the chair. but not limited to. The front end side of the seat body 3 may be supported by the leg bodies 2 so as to be able to flip up and rotate around an axis along the width direction of the chair. In this case, when the seat body 3 is in the storage position, the seat surface 3a faces the front side.
Further, in the above embodiment, the load transmitting member 40 (load transmitting section) is connected to the front support rod 29f of the frame-shaped frame 29, but the load transmitting member 40 (load transmitting section) It may be connected to the rear connecting rod 29r.
Further, in the above embodiment, the load transmission member 40 (load transmission portion) is formed of a substantially U-shaped bar, but the shape of the load transmission member 40 is not limited to this. The load transmission member 40 may be, for example, a block having a trapezoidal shape when viewed from the front. Furthermore, the number of load transmitting members 40 (load transmitting parts) is not limited to one, but may be plural.
Further, in the embodiment described above, the front and rear extending portions 23 are integrally formed at the upper ends of the upright portions of the front legs 21, but the front and rear extending portions 23 may also be formed integrally with the rear legs 22. good. Further, the front and rear extending portions 23 may be formed integrally with the front leg 21 and the rear leg 22, respectively, and the front and rear extending portions 23 may be interconnected. Further, the front and rear extending portions 23 may be formed of a separate member from the front legs 21 and the rear legs 22, and the front and rear ends of the front and rear extending portions 23 may be connected to the front legs 21 and the rear legs 22.

1...Chair 2...Legs 3...Seat body 3a...Seat surface 21...Front leg 22...Back leg 23...Anteroposterior extension part 24...Horizontal connecting rod 24a...Support arm part 24b...Reading beam part 29...Frame-shaped frame 29f ...Front support rod 29r...Rear support rod 29s...Side support rod 40...Load transmission member (load transmission part)

Claims (4)

a seat body having a seat surface on which a seated person sits;
The front or rear part of the seat body is connected to be rotatable about an axis along the width direction of the chair, and the seat body is used in a usage position in which the seat surface faces upward and in which the seat surface faces backward or forward. Equipped with legs that support the storage position and the storage position,
The leg body is
a pair of front legs spaced apart in the width direction of the chair;
a pair of rear legs spaced apart in the width direction of the chair on the rear side of the front legs;
A pair of front and rear legs on one side in which the front legs and the rear legs are interconnected on one side in the chair width direction, and a pair of front and rear legs on the other side in which the front legs and the rear legs on the other side in the chair width direction are interconnected. The pairs are connected by a horizontal connecting rod extending in the width direction of the chair.
The seat body is
a frame-like frame having a front support rod along the front side of the seat, a rear support rod along the rear side of the seat, and a pair of side support rods along the left and right sides of the seat;
One of the front support rod and the rear support rod protrudes from a region inside the pair of side support rods in the chair width direction toward a side opposite to the seating side of the seat surface, and the seat plate A chair comprising: a load transmitting portion whose protruding portion contacts the upper surface of the horizontal connecting rod in the use posture. The horizontal connecting rod includes a pair of support arm portions that protrude upward from each of the front and rear extension portions;
Claim characterized in that it has a cross beam part extending in the width direction of the chair and connecting the pair of support arm parts, and with which the load transmitting part abuts when the seat body is in the use posture. The chair described in 1. The distance between the outer ends of the pair of front legs in the chair width direction on the front end side is narrower than the distance between the inner ends of the pair of rear legs in the chair width direction on the rear end side. The chair according to claim 1 or 2, characterized in that: 4. The chair according to claim 3, wherein the distance between the front and rear extending portions of the pair of legs in the width direction of the chair narrows toward the front.

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