chair

Abstract

At the very least, the present invention provides a chair that maintains a backrest configuration that contributes to the user's comfortable experience, while also having a suitable configuration that allows the user to easily move the entire chair. [Solution] The chair support B is a single-piece molded product made of synthetic resin, having a seat 5, a backrest 8 connected to the rear of the seat 5, and left and right side walls S connected to the side edges of the seat 5 and the front of the backrest 8. A handle 6 for the user to place their fingers on is provided projecting downward from the front edge of the seat 5, and handles U projecting upward from the upper edge 8j of the backrest 8 and the upper edges sj of the left and right side walls S, while no handles are provided on the front edges Se of the left and right side walls S.

Description

Technical Field

[0001] The present invention relates to a chair.

Background Art

[0002] Conventionally, various chairs having a seat portion and a backrest portion formed of synthetic resin have been known (see, for example, Patent Document 1).

[0003] This type of conventional chair lacks user convenience because there is no suitable place for the user to hold when moving horizontally on the floor surface.

[0004] On the other hand, in this type of chair, if too many places for the user to hold are provided, not only the design is impaired, but also the flexibility of deformation when receiving the load of the seated person is reduced, resulting in a dilemma of impairing the comfortable use feeling of the user.

[0005] Recently, it has been required to provide inclusive elements for chairs, that is, to provide the same ease of use as when used by a healthy person even for a person with a disability or other physically weak user.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] The present invention has been made paying attention to the above circumstances, and at least provides a chair having a suitable configuration that makes it easy for the user to move the entire chair while maintaining the configuration of the backrest portion that contributes to the comfortable use feeling of the user. [Means for solving the problem]

[0008] In other words, the present invention has the following configuration.

[0009] The invention described in claim 1 is a chair comprising a leg body and a support body supported by the leg body, wherein the support body is an integrally molded product of synthetic resin having a seat portion, a backrest portion connected to the rear of the seat portion, a side edge portion of the seat portion, and left and right side walls portion connected to the front of the backrest portion, wherein a handle portion for the user to place their fingers on is provided projecting downward from the front edge of the seat portion, the upper edge of the backrest portion and the upper edges of the left and right side walls portion are provided to be smoothly continuous, an upper handle portion for the user to place their fingers on is provided projecting outward from each of the upper edges, and the front edges of the left and right side walls portion are not provided with handle portions.

[0010] The invention described in claim 2 is the chair according to claim 1, wherein the handle portion of the seat is provided to protrude diagonally downward and rearward.

[0011] The invention described in claim 3 is the chair according to claim 1, wherein the upper handgrip is provided in a straight line and is inclined to be gradually positioned downward toward the outside.

[0012] The invention described in claim 4 is the chair according to claim 3, wherein the degree of inclination of the upper handrail with respect to the horizontal line is set to be greater at the rear than at the front.

[0013] The invention described in claim 5 is the chair according to claim 4, wherein the degree of inclination of the upper handrail is set to gradually increase from the front to the rear.

[0014] The invention according to claim 6 is the chair according to claim 1, wherein the backrest portion and the left and right side wall portions are provided such that, in a side view, their upper end edges extend substantially linearly in the front-rear direction and are gradually positioned upward toward the rear.

[0015] The invention according to claim 7 is the chair according to claim 1, wherein the front portion of the seat portion has a curved shape that is gradually positioned downward toward the front.

[0016] The invention according to claim 8 is the chair according to claim 1, wherein the upper surface side of the upper handrail portions provided on the left and right side wall portions is provided so as to be able to function as an elbow rest.

[0017] The invention according to claim 9 is the chair according to claim 1, wherein the leg body has a configuration without a caster at its lower end.

[0018] The invention according to claim 10 is the chair according to claim 1, wherein the leg body is provided at a position spaced inward from the seat handrail portion continuously provided at the front end edge of the seat portion and the side edge portion of the seat portion.

Advantages of the Invention

[0019] As described above, according to the present invention, it is possible to provide a chair having a suitable configuration that facilitates the user to move the entire chair while maintaining at least the configuration of the backrest portion that contributes to a comfortable use feeling for the user.

Brief Description of the Drawings

[0020] [Figure 1] Perspective view showing an embodiment of the present invention. [Figure 2] Front view of the same embodiment. [Figure 3] Rear view of the same embodiment. [Figure 4] Plan view of the same embodiment. [Figure 5] Bottom view of the same embodiment. [Figure 6] Left side view of the same embodiment. [Figure 7] Right side view in the same embodiment. [Figure 8] Perspective view in the same embodiment. [Figure 9] X-X sectional view in FIG. 2. [Figure 10] Y-Y sectional view in FIG. 7.

MODE FOR CARRYING OUT THE INVENTION

[0021] Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

[0022] The chair includes a leg body A and a support body B supported by the leg body A and contacting the seated person to support the seated person.

[0023] Hereinafter, the chair of this embodiment will be described in detail.

[0024] <<Leg body A>> The leg body A is configured not to have casters at its lower end. The leg body A includes left and right front legs 11, 21 and left and right rear legs 12, 22 erected substantially linearly on the left and right in the front and on the left and right in the rear.

[0025] The leg body A includes a left leg component member 1 including the left front leg 11 and the left rear leg 12, a right leg component member 2 including the right front leg 21 and the right rear leg 22, and a leg base 3 rigidly connected to each of the left and right leg component members 1, 2 so as to connect between the upper parts of the left and right leg component members 1, 2.

[0026] <Left leg component member 1> The left leg component member 1 has a left front leg 11 and a left rear leg 12 provided with a grounding member C at its lower end, and a left connecting frame 13 extending linearly in the front-rear direction and connecting between the upper end of the left front leg 11 and the upper end of the left rear leg 12. The left front leg 11, the left rear leg 12, and the left connecting frame 13 are integrally formed of a metal pipe material.

[0027] The left foreleg 11 extends at an angle that gradually moves upward and towards the right rear. The left hind leg 12 extends at an angle that gradually moves upward and towards the right front.

[0028] <Right leg component 2> The right leg component 2 has a right front leg 21 and a right rear leg 22, both of which have a ground contact member C at their lower ends, and a right connecting frame 2 that extends linearly in the front-rear direction and connects the upper end of the right front leg 21 and the upper end of the right rear leg 22. The right front leg 21, the right rear leg 22, and the right connecting frame 2 are integrally formed from metal pipe material.

[0029] The right foreleg 21 extends at an angle that gradually moves upward and towards the left rear. The right hind leg 22 extends at an angle that gradually moves upward and towards the left front.

[0030] <Leg base 3> The leg base 3 is interposed between the left and right leg components 1 and 2 and the seat portion 5 of the support B. The leg base 3 is formed from a metal plate.

[0031] The leg base 3 has a horizontal portion 31 positioned between the left and right connecting frames 13 and 23. The horizontal portion 31 of the leg base 3 is provided with a screw insertion hole (not shown). The chair is configured such that the support B can be attached to the leg body A by screwing a screw (not shown) inserted through the screw insertion hole in the leg base 3 into a nut (not shown) in a nut holding portion 7 protruding from the lower surface of the seat portion 5 of the support B.

[0032] In this embodiment, the left and right connecting frames 13 and 23 and the leg base 3 of the left and right leg components 1 and 2 are covered by a synthetic resin cover 4.

[0033] <<Support B>> The support body B has a seat portion 5 that extends horizontally in a plate shape, a backrest portion 8 that is plate-shaped and connected to the rear of the seat portion 5 so as to extend upward, and left and right side wall portions S connected to the side edges of the seat portion 5 and the side edges of the backrest portion 8. The support body B as a whole has a shell shape. The support body B has a continuous cup shape formed by the seat portion 5, the backrest portion 8 and the left and right side wall portions S. The support body B is a one-piece molded product made of synthetic resin.

[0034] <Seat 5> The seat portion 5 has an upper surface that serves as the seating surface 5m. The seat portion 5 has a curved shape such that the left-right central portion 51 in the front-to-back central portion is convex downwards.

[0035] The seat portion 5 is shaped to smoothly connect with the backrest portion 8 at the rear and smoothly connect with the left and right side walls S on both sides. In other words, in order to smoothly connect with the backrest portion 8, the seat portion 5 is formed so that in a side view, the rear portion is positioned gradually upward toward the rear, and in order to smoothly connect with the left and right side walls S, the left and right sides are formed so that in a front view, the left and right sides are positioned gradually upward toward the outward.

[0036] The front part of the seat 5 is rounded in a partially arc shape when viewed from above. The front part of the seat 5 has a curved shape that gradually moves downward toward the front.

[0037] The seat portion 5 has a handle portion 6 projecting downward from its front edge for the user to place their fingers on. The handle portion 6 projects diagonally downward and backward.

[0038] The handle portion 6 of the seat is provided continuously and without interruption along the entire front edge of the seat portion 5.

[0039] The handle portion 6 of the seat, which is projected from the front edge of the seat portion 5, is positioned to protrude from the seat portion 5 at an angle backward from the vertical. The front end surface t1 of the seat portion 5 and the forward-facing surface 61 of the handle portion 6 are set to be flush with each other.

[0040] Furthermore, the leg body A is positioned at a distance inward from the seat handle 6, which is connected to the front edge of the seat 5, and from the side edge of the seat 5. This ensures that it does not interfere with the user's grip on the seat handle 6.

[0041] A nut holder 7, which holds a nut (not shown) for connecting to the leg body A, is provided protruding from the underside of the seat portion 5.

[0042] <Backrest section 8> The backrest portion 8 has a backrest surface 8m at its front. The backrest portion 8 has a curved shape in which the central part in the left-right direction protrudes backward.

[0043] The upper edge 8j of the backrest portion 8 is set to be gradually positioned downward from the center towards both the left and right ends when viewed from the front.

[0044] An upper handle U is provided projecting backward from the upper edge 8j of the backrest portion 8 for the user to rest their fingers on. The upper handle U is continuous with the upper edges Sj of the left and right side walls S. The upper handle U will be described in more detail later.

[0045] <Left and right side wall sections S> The left and right side walls S are positioned on both sides of the seated person. The left and right side walls S are positioned so as they gradually move outward toward the top. The lower ends of the left and right side walls S are continuous with the seat 5, the rear ends of the left and right side walls S are continuous with the backrest 8, and the upper ends of the left and right side walls S are continuous with the upper handrails U.

[0046] The left and right side walls S have no front edges Se provided with handles.

[0047] The upper surfaces of the upper hand grips U, which are provided on the left and right side walls S, are designed to function as elbow rests.

[0048] <Upper handle part U> The upper handle U is for the user to grip with their fingers to move the entire chair. The upper handle U is located at the upper end of the support B.

[0049] The upper handgrip U protrudes outward from the upper edge 8j of the backrest 8 and the upper edges Sj of the left and right side walls S, which are provided to be smoothly continuous. In a side view, the backrest 8 and the left and right side walls S are provided in such a manner that their respective upper edges 8j and Sj extend in a substantially straight line in the front-rear direction and are inclined to gradually move upward toward the rear.

[0050] In other words, the upper handle portion U is projected outward from the upper edges Sj, 8j of the support B, which extends in a substantially straight line in the front-rear direction when viewed from the side and is positioned gradually upward toward the rear.

[0051] The upper handle portion U is projected linearly from the upper edges Sj and 8j of the support B, and is inclined to gradually move downward toward the outside.

[0052] The degree of inclination of the upper handle U relative to the horizontal line is set to be greater at the rear than at the front. In other words, the degree of inclination of the upper handle U relative to the horizontal line is set to gradually increase from the front to the rear.

[0053] An upper handgrip U for the user's fingers is provided projecting outward and towards the rear from the upper edge 8j of the backrest portion 8, and is inclined to gradually move downward toward the rear. The upper handgrip U projecting from the backrest portion 8 has an upward-facing surface Um that faces upward and towards the rear over almost its entire surface. Upper hand grips U for the user's fingers are projected outward from the upper edges Sj of the left and right side walls S, and are inclined to gradually move downward toward the outside. The upper hand grips U projecting from the upper edges Sj of the left and right side walls S are provided with an upward-facing surface Um that faces upward and outward over almost their entire surface.

[0054] As described above, the chair according to this embodiment comprises a leg body A and a support body B supported by the leg body A. The support body B is a single molded product made of synthetic resin having a seat 5, a backrest 8 connected to the rear of the seat 5, and left and right side walls S connected to the side edges of the seat 5 and the front of the backrest 8.

[0055] The chair has a handle portion 6 projecting downward from the front edge of the seat portion 5 for the user to place their fingers on, and the upper edge 8j of the backrest portion 8 and the upper edges Sj of the left and right side walls S are provided to be smoothly continuous, with an upper handle portion U projecting outward from each of the upper edges 8j and Sj for the user to place their fingers on, and the front edges Se of the left and right side walls S are not provided with handle portions.

[0056] Therefore, this embodiment provides a chair that maintains a configuration of left and right side walls S that contributes to the user's comfortable use, that is, a configuration that is easily elastically deformable, while also having a suitable configuration that allows the user to easily move the chair.

[0057] In other words, when the support B is subjected to the weight of a seated person, the left and right side walls S, which do not have handholds, are easily deformed flexibly in the torsional direction, thus providing a comfortable user experience.

[0058] The seat's handle portion 6 protrudes diagonally downward and backward. Therefore, the chair is designed to make it easy to grip the seat's handle portion 6 with one's fingers.

[0059] The upper handle portion U is provided in a straight line and is inclined so as to be gradually positioned downwards toward the outside.

[0060] Therefore, the chair is designed in a way that makes it easy to place your fingers on the underside of the upper handle U.

[0061] The degree of inclination of the upper handgrip section U relative to the horizontal line is set to be greater at the rear than at the front.

[0062] Therefore, the upper handle U not only has a suitable configuration that makes it easy for the user's fingers to grip its underside, but also gives a particularly neat and sharp impression to both the left and right sides when viewed as a whole. As a result, the upper handle U can form a suitable appearance that does not give the user an overall impression of being redundant.

[0063] The degree of inclination in the upper handgrip U is set to gradually increase from the front to the rear.

[0064] Therefore, the upper handle portion U has a suitable configuration that makes it easy for the user's fingers to grip the underside of the entire area, and in particular, it is designed to make it easy for the user's fingers to grip the underside of the portion extending from the backrest portion 8.

[0065] Furthermore, the upper backrest section U is designed to give the user a sense of security and confidence, as it is particularly easy to reach for the center of the left-right direction when viewing the entire product.

[0066] Furthermore, the upward-facing surfaces Um of the upper handgrip portion U, which extend outward from the left and right side walls S, are not excessively inclined, allowing them to function effectively as elbow rests.

[0067] The backrest portion 8 and the left and right side wall portions S are arranged such that, in a side view, their respective upper edges 8j and Uj extend in a substantially straight line in the front-rear direction and are positioned gradually upward toward the rear.

[0068] Therefore, in addition to contributing to a desirable appearance, the upward-facing surface Um of the portion extending outward from the left and right side walls S of the upper handgrip U is formed to gradually descend toward the front, allowing it to function effectively as an armrest for the seated person.

[0069] The front part of the seat 5 has a curved shape that gradually moves downward towards the front.

[0070] Therefore, the front part of the seat 5 has a curved shape that allows it to suitably support the person sitting on it. In other words, the chair of this embodiment can be moved not only by using the upper handle U provided on the upper part of the support B, but also by using the handle 6 on the seat.

[0071] The upper surface, or upward-facing surface Um, of the upper handgrip U provided on the left and right side walls S is designed to function as an elbow rest.

[0072] Therefore, the upper handrails U provided on the left and right side walls S also serve as elbow rests, contributing to improved user convenience.

[0073] Leg body A is configured without casters at its lower end.

[0074] Therefore, the chair remains stably positioned without easily shifting from its predetermined location on the floor. With a chair of this configuration, the entire chair can be moved appropriately when necessary by utilizing the upper handle S provided on the support B and the seat handle 6.

[0075] The leg body A is positioned at a location spaced inward from the handle portion 6 of the seat, which is connected to the front edge of the seat portion 5, and from the side edge of the seat portion 5.

[0076] Therefore, the user can comfortably reach the handle portion 6 of the seat without being obstructed by the leg portion A.

[0077] However, the present invention is not limited to the embodiments described in detail above.

[0078] It goes without saying that the leg structure is not limited to those shown in the embodiments described above, and various configurations can be applied.

[0079] It goes without saying that the configuration of the support can be modified in various ways without departing from the spirit of the present invention.

[0080] Furthermore, the specific configuration of each part is not limited to the above embodiments, and various modifications are possible without departing from the spirit of the present invention. [Explanation of Symbols]

[0081] A...Leg body B...Support 5… Seat part 6…Handle part of the seat 8...Backrest S... Left and right side walls U... Upper handle

Claims

1. A chair comprising legs and a support structure supported by these legs, The support is a one-piece molded product made of synthetic resin, having a seat portion, a backrest portion connected to the rear of the seat portion, and left and right side wall portions connected to the side edges of the seat portion and the front of the backrest portion. A handle for the user's fingers is provided projecting downward from the front edge of the seat. The upper edge of the backrest and the upper edges of the left and right side walls are provided to be smoothly continuous, and upper handholds for the user's fingers are provided projecting outward from each of these upper edges. A chair in which no handles are provided at the front edges of the left and right side walls.

2. The chair according to claim 1, wherein the handle portion of the seat is provided to protrude diagonally downward and rearward.

3. The chair according to claim 1, wherein the aforementioned upper handle is provided in a straight line and is inclined to be gradually positioned downward toward the outside.

4. The chair according to claim 3, wherein the degree of inclination of the upper handrail with respect to the horizontal is set to be greater at the rear than at the front.

5. The chair according to claim 4, wherein the degree of inclination of the upper handrail portion is set to gradually increase from the front to the rear.

6. The chair according to claim 1, wherein the backrest and the left and right side walls are provided such that, in a side view, their respective upper edges extend in a substantially straight line in the front-rear direction and are gradually positioned upward toward the rear.

7. The chair according to claim 1, wherein the front part of the seat has a curved shape so that it is gradually positioned downward toward the front.

8. The chair according to claim 1, wherein the upper surface of the upper handrail provided on the left and right side walls is provided so as to function as an armrest.

9. The chair according to claim 1, wherein the legs are configured not to have casters at their lower ends.

10. The chair according to claim 1, wherein the legs are provided at a position spaced inward from the handle portion of the seat which is connected to the front edge of the seat portion and from the side edge portion of the seat portion.

Images