Chair

Abstract

To provide a chair that can improve sitting comfort. The chair comprises a base 2 and a backrest 3, and the base 2 is provided with a relief portion 9 for providing relief for the user's tailbone and ischium.

Description

[Technical field]

[0001] The present invention relates to a chair designed to be sat on and leaned against. [Background technology]

[0002] Various types of chairs of this kind have been proposed.

[0003] For example, Patent Document 1 discloses a chair that includes a seat, a backrest, and a hinge that connects them in a foldable manner. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Jitszen No. 55-497 Publication Summary of the Invention [Problem to be solved by the invention]

[0005] However, this chair has a problem in that the base is flat, so that the tailbone and sitting bones come into contact with it, making it uncomfortable to sit on.

[0006] The present invention has been made in light of the above circumstances, and its object is to provide a chair that can improve sitting comfort. [Means for solving the problem]

[0007] In order to solve the above problems, the chair of the present invention comprises a base and a backrest, and is characterized in that at least the base of the base and the backrest are provided with relief portions to allow the user's tailbone and ischium to rest. Effect of the Invention

[0008] The chair of the present invention can improve seating comfort. [Brief description of the drawings]

[0009] The drawings show particular embodiments of the invention, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] FIG. 2 is a side view of a chair according to an embodiment of the present invention. [Diagram 2] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0011] In FIG. 1, reference numeral 1 denotes a chair according to an embodiment of the present invention.

[0012] As shown in FIG. 2, the chair 1 has a seat 2 and a backrest 3.

[0013] In addition, a hinge portion 4 is provided at the boundary between the base 2 and the backrest 3, connecting the base 2 and the backrest 3 in a foldable manner.

[0014] The base 2 has a step portion 5 along the boundary between the base 2 and the backrest 3, i.e., along the width direction, and a thick portion 6 is formed on the front side in the depth direction, a thin portion 7 on the back side, and a sloped portion 8 is formed between the thick portion 6 and the thin portion 7.

[0015] The thin portion 7 is provided with a constant width from one end side to the other end side in the width direction of the mattress 2, and serves as a relief portion 9 for allowing the user's tailbone and ischium to escape.

[0016] In other words, when a user sits on the chair 1, the user's buttocks are supported by the thick portion 6, and the relief portion 9 prevents the user's tailbone and ischial bones from hitting the seat surface 10 of the floor cushion 2 too hard.

[0017] According to the above-mentioned configuration, the user's tailbone and ischium do not hit the seat surface 10 of the floor cushion 2 hard, thereby improving the sitting comfort.

[0018] In the above embodiment, the relief portion 9 is provided in the seat 2, but it may also be provided in the backrest 3.

[0019] Further, the relief portion 9 is configured by the thin portion 7, but it may be configured by a space without the base 2 or backrest 3.

[0020] The disclosure regarding the present invention described above can be summarized at least as follows.

[0021] In other words, the chair of the present invention comprises a base and a backrest, and is characterized in that at least the base of the base and the backrest are provided with a relief portion to allow the user's tailbone and ischium to rest.

[0022] The present invention may include at least the following embodiments, which may be adopted separately or in combination with each other.

[0023] (1) The relief portion has a thin-walled portion provided in the base.

[0024] (2) The relief portion has a step provided in the base.

[0025] (3) The relief area shall be provided along the boundary between the seat and the backrest.

[0026] (4) The relief section shall be provided from one end of the floor mat to the other end.

[0027] (5) A hinge portion is provided at the boundary between the seat and the backrest, connecting the seat and the backrest in a foldable manner. [Explanation of symbols]

[0028] 1. Japanese floor chair 2 Shikiza 3 Backrest 4 Hinge part 5 Step 7 Thin-walled section 9 Relief

Claims

1. With a floor seat, With a backrest, Equipped with This chair is characterized in that at least the base and the backrest are provided with relief sections for allowing the user's tailbone and ischium to escape.

2. 2. The chair according to claim 1, wherein the relief portion comprises a thin portion provided on the base.

3. 2. The chair according to claim 1, wherein the relief portion comprises a step portion provided in the base.

4. 2. The chair according to claim 1, wherein the relief portion is provided along a boundary between the base and the backrest.

5. 2. The chair according to claim 1, wherein the relief portion is provided from one end of the base to the other end.

6. 2. The chair according to claim 1, further comprising a hinge portion at a boundary between the base and the backrest, for foldably connecting the base and the backrest.

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