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] A chair comprising a leg body A and a support body B supported by the leg body A, wherein the support body B is a single molded product made of synthetic resin having a seat 5 and a backrest 8 connected to the rear of the seat 5, with handles 6 for the user to place their fingers on projecting downward from the front edge and left and right side edges of the seat 5, and a handle 9 for the user to place their fingers on projecting backward only from the upper edge of the backrest 8.

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 (for example, see 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 the chair horizontally on the floor surface.

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

[0005] Recently, it has been required to equip chairs with inclusive elements, that is, to have the same ease of use as when used by a healthy person even for disabled persons and other users with physical weakness.

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 and a backrest portion connected to the rear of the seat portion, the seat portion having a handle portion projecting downward from the front edge and left and right side edges for the user to place their fingers on, and the backrest portion having a handle portion projecting backward from only its upper edge for the user to place their fingers on.

[0010] The invention described in claim 2 is the chair according to claim 1, wherein the handgrip on the back is provided in a straight line and is inclined to be gradually positioned downward toward the rear.

[0011] The invention described in claim 3 is the chair according to claim 2, wherein the degree of inclination of the handgrip portion on the back with respect to the horizontal line is set to be greater in the middle portion in the left-right direction than at both ends in the left-right direction.

[0012] The invention described in claim 4 is the chair according to claim 3, wherein the degree of inclination of the handgrip portion on the back is set to gradually increase from both ends in the left-right direction toward the middle portion in the left-right direction.

[0013] The invention described in claim 5 is the chair according to claim 1, wherein the backrest is formed such that, in a front view, both left and right edges extend in a substantially straight line in the vertical direction.

[0014] The invention described in claim 6 is the chair according to claim 1, wherein the handle portion of the seat is provided continuously with the front edge and the left and right side edges of the seat portion.

[0015] The invention according to claim 7 is the chair according to claim 1 which is configured such that other chairs having the same structure can be stacked in the vertical direction.

[0016] The invention according to claim 8 is the chair according to claim 1 which is configured such that the legs do not have casters at the lower ends.

[0017] The invention according to claim 9 is the chair according to claim 1 which is provided at a position where the legs are spaced inward from the handrail portions of the seat which are continuously provided at the front edge and the left and right side edges of the seat portion.

Advantages of the Invention

[0018] As described above, according to the present invention, it is possible to provide a chair having a preferable configuration that makes it easy for a 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

[0019] [Figure 1] Perspective view showing an embodiment of the present invention. [Figure 2] Front view in the same embodiment. [Figure 3] Rear view in the same embodiment. [Figure 4] Plan view in the same embodiment. [Figure 5] Bottom view in the same embodiment. [Figure 6] Left side view in the same embodiment. [Figure 7] Right side view in the same embodiment. [Figure 8] Perspective view in the same embodiment. [Figure 9] Cross-sectional view taken along the line X-X in FIG. 2. [Figure 10] Cross-sectional view taken along the line Y-Y in FIG. 7. [Figure 11] Perspective view showing another embodiment. [Figure 12] Right side view showing the stacking state of the same embodiment. [Modes for carrying out the invention]

[0020] One embodiment of the present invention will be described below with reference to Figures 1 to 10.

[0021] The chair comprises a leg body A and a support body B that is supported by the leg body A and is in contact with the seated person to support the seated person.

[0022] The chair of this embodiment will be described in detail below.

[0023] <<Leg body A>> Leg body A is configured without casters at its lower end. Leg body A consists of left and right front legs 11, 21 and left and right rear legs 12, 22, which are erected in a substantially straight line at the front left and right and rear left and right.

[0024] Leg body A comprises a left leg component 1 which includes a left front leg 11 and a left rear leg 12, a right leg component 2 which includes a right front leg 21 and a right rear leg 22, and a leg base 3 which is rigidly connected to each of the left and right leg components 1 and 2 so as to connect the upper parts of the left and right leg components 1 and 2.

[0025] <Left leg component 1> The left leg component 1 has a left front leg 11 and a left rear leg 12, both of which have a ground contact member C at their lower ends, and a left connecting frame 13 that extends linearly in the front-rear direction and connects 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 from metal pipe material.

[0026] 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.

[0027] <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.

[0028] 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.

[0029] <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.

[0030] 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.

[0031] 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.

[0032] <<Support B>> The support body B has a seat portion 5 that extends horizontally in a plate shape, and a backrest portion 8 that is plate-shaped and attached to the rear of the seat portion 5 so as to extend upward. The support body B as a whole has a shell shape. In a side view, the support body B has a continuous shape that is roughly L-shaped due to the seat portion 5 and the backrest portion 8. The support body B is a one-piece molded product made of synthetic resin.

[0033] <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. The seat portion 5 is formed such that the left-right side portions 52 in the front-to-back central portion are positioned gradually downwards toward the outer ends.

[0034] The seat portion 5 is formed such that, in a plan view, the left and right edge portions 5e, excluding the front portion, extend in a substantially straight line in the front-to-back direction.

[0035] The seat 5 has a trapezoidal shape in plan view, with the front being wider than the rear. The seat 5 has a shape in which the width gradually increases from the rear to the front in plan view. The left and right corners at the front of the seat 5 are rounded.

[0036] On the lower surfaces of the left and right corners at the front of the seat portion 5, there are projections 53 that are set to abut against the left and right connecting frames 13 and 23 of the leg body A when applying other configurations of the leg body A shown in Figures 11 and 12.

[0037] The seat portion 5 has handles 6 projecting downward from its front edge and left and right side edges for the user to place their fingers on.

[0038] The seat handle portion 6 is provided continuously and without interruption along the entire front edge and left and right side edges 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] The handle portions 6 of the seat, which are projected from the left and right side edges of the seat portion 5, are positioned to protrude inward from the seat portion 5 at an angle greater than the vertical. The outward-facing side end surface t2 of the seat portion 5 and the outward-facing surface 62 of the handle portion 6 are set to be flush with each other.

[0041] Furthermore, the leg body A is positioned at a distance inward from the seat handles 6 which are connected to the front edge and left and right side edges of the seat 5, so as not to interfere with the user when they place their hands on the seat handles 6.

[0042] 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.

[0043] The seat portion 5 has a shape that smoothly connects to the backrest portion 8 at the rear. In other words, the seat portion 5 is formed so that its rear portion is gradually positioned upward toward the rear in order to smoothly connect with the backrest portion 8 in a side view.

[0044] <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.

[0045] 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.

[0046] The backrest portion 8 is formed such that, in a front view, its left and right side edges 8e extend in a substantially straight line in the vertical direction.

[0047] The backrest 8 has an inverted trapezoidal shape, with the upper side being wider than the lower side when viewed from the front. The backrest 8 has a shape in which the width gradually increases from the lower side to the upper side when viewed from the front.

[0048] The backrest 8 has a handgrip 9 projecting backward only from its upper edge 8j for the user to place their fingers on. The handgrip 9 is projected in a straight line. The handgrip 9 is inclined so as to be gradually lower towards the rear. The handgrip 9 has an upward-facing surface 9m that faces upward and backward over almost its entire surface.

[0049] The degree of inclination of the handgrip portion 9 on the back with respect to the horizontal line is set to be greater in the middle of the left-right direction than at both ends in the left-right direction. The degree of inclination of the handgrip portion 9 on the back is set to gradually increase from both ends in the left-right direction to the middle of the left-right direction.

[0050] 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 portion 5 and a backrest portion 8 connected to the rear of the seat portion 5.

[0051] The chair has handles 6 projecting downward from the front edge and left and right side edges of the seat 5 for the user to place their fingers on, and a handle 9 projecting backward from only its upper edge 8j of the backrest 8 for the user to place their fingers on, with no handles projecting backward from the left and right side edges 8e.

[0052] Therefore, it becomes possible to provide a chair that has a backrest 8 structure that contributes to the user's comfortable use, that is, a structure that is easily elastically deformable, while also having a suitable structure that makes it easy for the user to move the chair.

[0053] The handgrip 9 on the back is provided in a straight line and is inclined to gradually move downward toward the rear.

[0054] Therefore, the design makes it easy for the user to place their fingers on the underside of the handle 9 on the back.

[0055] The degree of inclination of the handgrip portion 9 on the back with respect to the horizontal line is set to be greater in the middle section in the left-right direction than at both ends in the left-right direction.

[0056] Therefore, the handle portion 9 on the back 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 handle portion 9 on the back can form a suitable appearance that does not give the user an overall impression of being redundant.

[0057] The degree of inclination of the handgrip portion 9 on the back is set to gradually increase from both ends in the left-right direction toward the middle portion in the left-right direction.

[0058] Therefore, the handle portion 9 on the back has a suitable configuration that makes it easy for the user's fingers to grip the underside of the handle throughout its entire left-right direction, and in particular, it is designed to make it easy for the user's fingers to grip the underside of the handle in the middle of the left-right direction.

[0059] Furthermore, the handle portion 9 on the back is designed to give the user a sense of security and confidence in its appearance, making it particularly easy to grasp the center portion in the left-right direction when viewing the entire chair.

[0060] The backrest portion 8 is formed such that, in a front view, its left and right side edges 8e extend in a substantially straight line in the vertical direction.

[0061] Therefore, the backrest portion 8, with its upper and lower intermediate sections corresponding to the left and right edges 8e, is designed to deform flexibly in the twisting direction when subjected to the weight of a seated person, thus providing a comfortable user experience.

[0062] The handle portion 6 of the seat is provided continuously along the front edge and the left and right side edges of the seat portion 5.

[0063] Therefore, the chair can be moved not only by using the handle 9 on the back of the backrest 8, but also by using the handle 6 on the seat.

[0064] Leg body A is configured without casters at its lower end.

[0065] 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 handle portion 9 on the back and the handle portion 6 on the seat, which are provided on the support B.

[0066] 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 and left and right side edges of the seat portion 5.

[0067] Therefore, the user can comfortably reach the handle portion 6 of the seat without being obstructed by the leg portion A.

[0068] However, the present invention is not limited to the embodiments described in detail above.

[0069] 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.

[0070] Here, the chairs shown in Figures 11 and 12 are configured to be stackable vertically with other chairs of the same structure. Compared to the chairs of the embodiments described above, the chairs of this embodiment differ in the configuration of the left and right leg components 2 in the leg body A.

[0071] In other words, in the chair shown in Figures 11 and 12, the left and right leg components 2 have a shape where the left and right connecting frames 13 are outwardly U-shaped and conform to the underside of the seat 5. In this embodiment, the left and right front legs 11, 21 and left and right rear legs 12, 22, which are connected to the U-shaped left and right connecting frames 13, are positioned outward from the seat 5 of the chair below.

[0072] 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.

[0073] 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]

[0074] A...Leg body B...Support 5… Seat part 6…Handle part of the seat 8...Backrest 9...Handle on the back

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 and a backrest portion connected to the rear of the seat portion. The front edge and left and right side edges of the seat are provided with handles that protrude downward for the user to place their fingers on. The chair is provided with a backrest that has a handgrip protruding from its upper edge only, for the user to place their fingers on.

2. The chair according to claim 1, wherein the handrail on the back is provided in a straight line and is inclined to be gradually positioned downward toward the rear.

3. The chair according to claim 2, wherein the degree of inclination of the handgrip portion on the back with respect to the horizontal is set to be greater in the middle portion in the left-right direction than at both ends in the left-right direction.

4. The chair according to claim 3, wherein the degree of inclination of the handgrip portion on the back is set to gradually increase from both ends in the left-right direction toward the middle portion in the left-right direction.

5. The chair according to claim 1, wherein the backrest is formed such that, in a front view, both left and right edges extend in a substantially straight line in the vertical direction.

6. The chair according to claim 1, wherein the handle portion of the seat is provided continuously with the front edge and the left and right side edges of the seat portion.

7. The chair according to claim 1, wherein other chairs having the same structure are configured to be stackable in the vertical direction.

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

9. The chair according to claim 1, wherein the legs are provided at a position spaced inward from the handles of the seat, which are connected to the front edge and left and right side edges of the seat.

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