JP2007021127A

JP2007021127A - Step cushion

Info

Publication number: JP2007021127A
Application number: JP2005230053A
Authority: JP
Inventors: Masaaki Kurihara; 雅昭栗原
Original assignee: KURIHARA CHINABI
Current assignee: KURIHARA CHINABI
Priority date: 2005-07-11
Filing date: 2005-07-11
Publication date: 2007-02-01

Abstract

<P>PROBLEM TO BE SOLVED: To remove a harmful effect such as lassitude, fatigue due to dropsy or the like directly related to everyday life and prevent or block low back pain, the dropsy or the like as well. <P>SOLUTION: The step cushion comprises a partition 3 at the central lower step of an outer covering member 4. Respective elastomers containing regions for front and rear seat regions are provided at front and rear sides of the partition 3, respectively. The rear elastomer containing region 1 contains a two-layered elastomer integrally formed of hard and soft elastic layers, that is, an upper half soft elastomer and a lower half elastomer. The front containing region 2 contains only a layer of soft elastomer. The elastomer of the rear seat region receives the almost entire weight of upper half of the seater at the two-layered elastomer integrally formed of hard and soft elastic layers having excellent cushioning property and yet with frexibility. Accordingly, not only the fatigue of the buttocks, but also even the feeling of excessive pressure applied to the thighs are alleviated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、座る、腰掛ける、などの動作によって引き起こされる疲労等による、弊害予防、及び軽減を目的としたクッション（弾性）に関するものである。The present invention relates to a cushion (elasticity) for the purpose of preventing and mitigating harmful effects caused by fatigue caused by operations such as sitting and sitting.

従来の、座布団やシートクッションに用いられている包合材の殆どは、均一な厚み仕様の為、座る、腰掛ける、などの動作において、上半身の体重が隼中する臀部（坐骨）直下域のみが過重負荷状態となる。結果、その限られた座面域のクッション性だけが重点的に損なわれ、隼中的な臀部の痛みや疲労、又は大腿部への局所的圧迫を起因とした、リンパ液、組織液の滞りが発生、浮腫症等の発症に繋がる。従って、日常生活に直結のデスクワーク等にも支障を来たす事となる。Most of the conventional wrapping materials used for seat cushions and seat cushions have a uniform thickness specification, so in the operation of sitting, sitting, etc., only the area directly below the buttocks (sciatic bone) where the upper body weight is in the middle An overload condition occurs. As a result, only the cushioning property of the limited seating surface area is seriously impaired, and stagnation of lymph fluid and tissue fluid due to pain and fatigue of the buttocks in the middle or local pressure on the thigh Occurrence, development of edema, etc. Therefore, the desk work directly connected to daily life will also be hindered.

そこで、この発明は、日常生活に直結した浮腫み等による怠さや、疲労等の弊害を取り除くと共に、腰痛症、浮腫症等の予防、又は阻止の提供を課題とするものである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide the provision of prevention or prevention of low back pain, edema, etc., as well as elimination of laziness due to edema and the like directly related to daily life and fatigue.

其れらの課題を解決する為、第一発明は、坐骨部位、つまり、臀部が接する座面域弾性体の上段部分にあたる軟質弾性体（図４の１）と、下段部分にあたる硬質弾性体（図４の２）を接着、又は接合し、硬軟一体化した二層形状弾性体（図４）を、外装（カバー）材（図１の３）により包合したものである。
大腿部が接する座面域の弾性体は軟質の弾性体（図３）だけとし、高さ（厚み）も臀部が接する座面域弾性体より低く（薄く）した。In order to solve these problems, the first invention includes a soft elastic body (1 in FIG. 4) corresponding to the upper portion of the seat surface elastic body in contact with the sciatic site, that is, the buttocks, and a hard elastic body corresponding to the lower portion (1). A two-layered elastic body (FIG. 4) obtained by adhering or joining 2) in FIG. 4 and integrated softly and softly is wrapped with an exterior (cover) material (3 in FIG. 1).
The elastic body in the seating area where the thigh is in contact was only a soft elastic body (FIG. 3), and the height (thickness) was lower (thinner) than the seating area elastic body in contact with the buttocks.

第一発明によれば、臀部が接する座面域（図１の１）に包含の弾性体（図４）と、大腿部が接する座面域（図１の２）に包含の弾性体（図３）の厚みに差を設けた上、臀部の接する座面域（図１の１）に包含の弾性体（図４）の上半分は軟質弾性体（図４の１）、下半分は硬質の弾性体（図４の２）としたことで、柔軟性や感触を損なう事無く、過度な負荷によって生じる後部座面（図１の１）域への隼中的な凹みや、ヘタリを防ぐ事が出来る。しかも、臀部座面（図１の１）域への体重集約で逃げ場を失ったクッション性による大腿部位の圧迫が軽減され、体内のリンパ液、或は、組織液の流れが円滑になる。従って、デスクワーク等につきものの、浮腫み等による足腰の怠さや、疲労、倦労感といった種々の弊害から解放される。According to the first invention, the elastic body (FIG. 4) included in the seating surface area (1 in FIG. 1) with which the buttocks contact and the elastic body (2 in FIG. 1) with which the thigh is in contact ( 3), the upper half of the elastic body (FIG. 4) included in the seating area (1 in FIG. 1) in contact with the buttocks is a soft elastic body (1 in FIG. 4), and the lower half is By adopting a rigid elastic body (2 in FIG. 4), it does not impair the flexibility and feel, and it eliminates dents and slumps in the back seating surface (1 in FIG. 1) caused by excessive load. It can be prevented. In addition, the compression of the thigh due to the cushioning property that lost the escape area due to the weight concentration on the buttocks seating surface (1 in FIG. 1) is reduced, and the flow of lymph fluid or tissue fluid in the body becomes smooth. Therefore, it is freed from various harmful effects such as lameness due to edema, fatigue, and tiredness, etc., which are related to desk work.

この発明の一実施形態を、図１から図４に示す。
図１は、外装（カバー）材（３）で弾性体を包含した本形態の斜視図である。
図２は、座面の前半分（２）域と、座面の後ろ半分（１）域の境に間仕切り（３）を設けることを特徴とした、弾性体包含域の斜視図である。
図３は、前半分（図２の２）域に収める、軟質弾性体の斜視図である。
図４は、後ろ半分（図２の１）域に収める、硬軟二層から成る弾性体の斜視図である。
「実施形態の効果」One embodiment of the present invention is shown in FIGS.
FIG. 1 is a perspective view of this embodiment in which an exterior (cover) material (3) includes an elastic body.
FIG. 2 is a perspective view of an elastic body-containing region characterized in that a partition (3) is provided at the boundary between the front half (2) region of the seating surface and the rear half (1) region of the seating surface.
FIG. 3 is a perspective view of the soft elastic body that is accommodated in the front half (2 in FIG. 2).
FIG. 4 is a perspective view of an elastic body composed of two layers of hard and soft, which is accommodated in the rear half (1 in FIG. 2).
"Effect of the embodiment"

従来の、座布団、シートクッション、座椅子等の座面域は平滑であり、クッション性も均一である。その為、大腿部位直下に比べ、上半身の体重が集中する臀部（坐骨）域直下の座面域を重点に重圧が掛かる事と成り、座面の一部分のみが過度に沈み込む（凹む）事となる。
結果、座面のどの位置に腰を下したとしても、逃げ場を失った弾性を原因とした座面からの圧迫が荷重の少ない大腿部位直下に集約される。
座椅子やソファー等に至っては、必ずと言っていいくらい、上体を後ろに反らConventional seat areas such as cushions, seat cushions, and chairs are smooth and cushioning is uniform. Therefore, compared to just below the thigh, heavy pressure is applied to the seat area just below the buttocks (sciatic bone) where the weight of the upper body is concentrated, and only a part of the seat surface sinks (dents) excessively. Become.
As a result, regardless of the position on the seating surface, the pressure from the seating surface due to the elasticity that has lost the escape is concentrated just below the thigh region where the load is small.
When you reach a chair, sofa, etc., you should warp your upper body back.

して座る事を前提としており、座面前部域より座面後部域の方が低くなったものが殆どで、臀部（坐骨）域の接する位置よりも、大腿部の接する位置の方が高く（分厚く）なっている。然も、座面全体が同じクッション性なだけに、上半身の体重が集中する臀部（坐骨域）直下域だけが過度に沈み込む（凹む）事と成り、逃げ場を失ったクッション性（弾性）が荷重の少ない大腿部位直下に集約され、より大きな力となって大腿部位に過度な圧迫を齎らす事となる。Most of them are lower in the rear seat area than in the front seat area, and the thigh contact position is higher than the buttocks (sciatic) area contact position. (Thick). However, as the entire seating surface has the same cushioning property, only the region directly below the buttocks (sciatic region) where the weight of the upper body is concentrated sinks (depresses) excessively, and the cushioning property (elasticity) has lost its escape. It is concentrated directly under the thigh area where the load is small, resulting in greater force and excessive pressure on the thigh area.

この実施形態によれば、弾性体包含域中央に、間仕切り（図２の３）を設け、座面後ろ半分（図２の１）域に、硬軟二層から成る弾性体（図４）を包含。上層の軟質弾性体（図４の１）によって、上半身の体重負荷を柔軟に受け止めると共に下層の硬質弾性体（図４の２）の適度な硬さによって、底付き感、つまり、体重の重圧によって弾性体が圧縮され、弾性体の持つ柔軟性が損なわれることで起こるクッション材自体の「ヘタリ」を防止する事が出来る。According to this embodiment, the partition (3 in FIG. 2) is provided in the center of the elastic body containing area, and the elastic body (FIG. 4) consisting of two layers of hard and soft is included in the rear half of the seat surface (1 in FIG. 2). . The upper elastic elastic body (1 in FIG. 4) flexibly receives the weight load of the upper body and the appropriate hardness of the lower elastic body (2 in FIG. 4), so that the feeling of bottoming, that is, the heavy pressure of the body weight It is possible to prevent “sagging” of the cushion material itself, which occurs when the elastic body is compressed and the flexibility of the elastic body is impaired.

この硬軟二層の弾性体（図４）により、臀部への隼中的な圧迫が軽減され、局所的な痛みや疲労等を阻止出来る。硬軟二層の弾性体（図４）は、荷重圧を適度に分散するだけでなく、座面の前半分（図１の２）域より一段高い後ろ半分（図１の１）域で、上半身体重の殆どを受け止めてくれる為、一段低い前半分（図１の２）域に接する大腿部位への圧迫は、皆無状態にまで解消される。This hard / soft two-layered elastic body (FIG. 4) reduces the pressure on the buttocks and can prevent local pain and fatigue. The hard and soft two-layered elastic body (Fig. 4) not only distributes the load pressure moderately, but also the upper half of the body in the rear half (1 in Fig. 1) higher than the front half (2 in Fig. 1) of the seating surface. Since most of the body weight is received, the pressure on the thigh region in contact with the lower half of the front half (2 in FIG. 1) is completely eliminated.

この事が、座り心地をも高め、大腿部位を流れるリンパ液や、組織液の流れを円滑にする事となる。長時間のデスクワーク等において生じる足の浮腫み等を予防、又は防止出来る事で、疲労や倦労感といった弊害から解放される。This also enhances sitting comfort and smoothes the flow of lymph fluid and tissue fluid flowing through the thigh region. The ability to prevent or prevent foot edema, etc. that occurs during long hours of desk work, etc., frees you from harmful effects such as fatigue and tiredness.

「他の実施形態」（其の１）
図１の実施形態では、間仕切り（図２の３）を設け、弾性体を前部包含域（図２の２）と後部包含域（図２の１）に分割包含していたが、硬質弾性体（図７の２）と軟質弾性体（図７の１）を接合、又は一体成形化した弾性体（図７）を、外装（カバー）材（図５の３）の一括包含域（図６の１）に収めたものでも良い。“Other Embodiments” (Part 1)
In the embodiment of FIG. 1, the partition (3 in FIG. 2) is provided, and the elastic body is divided and included in the front inclusion region (2 in FIG. 2) and the rear inclusion region (1 in FIG. 2). An elastic body (FIG. 7) obtained by joining or integrally molding a body (2 in FIG. 7) and a soft elastic body (1 in FIG. 7), a collective inclusion area (3 in FIG. 5) of an exterior (cover) material (FIG. 5) Those in 1) of 6 may be used.

「他の実施形態」（其の２）“Other Embodiments” (Part 2)

図１の実施形態では、後部座面域（図２の１）と、前部座面域（図２の２）中央に垂直で落差を設けているが、其処を傾斜（図９の４）落差とし、傾斜（図９の４）終端下部に間仕切り（図９の３）を設ける。外装（カバー）材（図８の１）の後部包含域（図９の１）には、軟質弾性体（図１１の１）と、硬質弾性体（図１１の２）を接合又は一体成形化し、傾斜（図１１の３）域を設けた硬軟二層の弾性体（図１１）を収め、前半分包含域（図９の２）には、軟質弾性体（図１０）を収めたものでも良い。
「他の実施形態」（其の３）In the embodiment of FIG. 1, there is a vertical drop in the center of the rear seat surface area (1 in FIG. 2) and the front seat surface area (2 in FIG. 2), but the slope is inclined (4 in FIG. 9). A head (3 in FIG. 9) is provided at the lower end of the slope (4 in FIG. 9). A soft elastic body (1 in FIG. 11) and a hard elastic body (2 in FIG. 11) are joined or integrally formed in the rear part covering area (1 in FIG. 9) of the exterior (cover) material (1 in FIG. 8). A hard and soft two-layer elastic body (FIG. 11) provided with a slope (3 in FIG. 11) is accommodated, and a soft elastic body (FIG. 10) is accommodated in the front half inclusion area (2 in FIG. 9). good.
“Other Embodiments” (Part 3)

図１の実施形態では、後部座面域（図２の１）と、前部座面域（図２の２）中央に垂直で落差を設けているが、其処を傾斜（図９の４）落差とした外装（カバー）材（図１２）の、一括包含域（図１３の１）に、軟質弾性体（図１４の１）と、硬質弾性体（図１４の２）を接合、又は一体成形化した、硬軟異質の一体化弾性体（図１４）を収めたものでも良い。
「他の実施形態」（其の４）In the embodiment of FIG. 1, there is a vertical drop in the center of the rear seat surface area (1 in FIG. 2) and the front seat surface area (2 in FIG. 2), but the slope is inclined (4 in FIG. 9). A soft elastic body (1 in FIG. 14) and a hard elastic body (2 in FIG. 14) are joined to or integrated with a collective inclusion region (1 in FIG. 13) of the exterior (cover) material (FIG. 12) as a drop. It may be a molded product containing a hard and soft heterogeneous integrated elastic body (FIG. 14).
“Other Embodiments” (Part 4)

図１の実施形態では、二分割は不可であるが、下段部（図１５の１）に、間仕切り（図１６の３）を設け、下段包含域（図１６の１と２）と、上段包含域（図１６の４）を設ける。軟質弾性体（図１７）を、上段包含域（図１６の４）と、下段前部包含域（図１６の２）に収め、硬質弾性体（図１８）を、下段後部包含域（図１６の１）に収める。上段部（図１５の２）と、下段部（図１５の１）を分離可能な接続具（図１６の５）で接続したものでも良い。
「他の実施形態」（其の５）In the embodiment of FIG. 1, it is not possible to divide into two parts, but a partition (3 in FIG. 16) is provided in the lower stage (1 in FIG. 15), the lower stage inclusion area (1 and 2 in FIG. 16), and the upper stage inclusion. An area (4 in FIG. 16) is provided. The soft elastic body (FIG. 17) is housed in the upper stage inclusion area (4 in FIG. 16) and the lower front area (FIG. 16-2), and the hard elastic body (FIG. 18) is placed in the lower rear area (FIG. 16). 1). The upper part (2 in FIG. 15) and the lower part (1 in FIG. 15) may be connected by a separable connecting tool (5 in FIG. 16).
“Other Embodiments” (Part 5)

図１の実施形態では、三分割は不可であるが、同型三包含域（図２０の１と２と３）を設け、軟質弾性体（図２２）を、上段包含域（図２０の１）と、下段前部包含域（図２０の３）に、硬質弾性体（図２３）を、下段後部包含域（図２０の２）に、それぞれ収め、分離可能な接続具（図２１の４）で接続（二箇所）したものでも良い。
「他の実施形態」（其の６）
図１の実施形態では、前部座面域（図１の２）と、後部座面に（図１の１）に段差を設けたが、軟質弾性体（図２６の１）と、硬質弾性体（図２６の２）を接合、又は一体成形化し、中央域から前部先端域にスロープ域（図２６の３）を設けた硬軟二層から成る弾性体（図２６）を、同じく、スロープ域（図２６の３）を設けた外装（カバー）材（図２４の２）の一括包含域（図２５の１）に収めるものでも良い。
「他の実施形態」（其の７）In the embodiment of FIG. 1, three divisions are impossible, but the same three inclusion areas (1, 2 and 3 in FIG. 20) are provided, and the soft elastic body (FIG. 22) is placed in the upper inclusion area (1 in FIG. 20). And a lower elastic body (FIG. 23) in the lower front area (FIG. 20-3) and a separable connector (4 in FIG. 21). It may be connected (two places).
“Other Embodiments” (Part 6)
In the embodiment of FIG. 1, the front seat surface area (2 in FIG. 1) and the rear seat surface (1 in FIG. 1) are provided with steps, but the soft elastic body (1 in FIG. 26) and the hard elastic The body (2 in FIG. 26) is joined or integrally molded, and an elastic body (FIG. 26) consisting of two layers of hard and soft layers provided with a slope region (3 in FIG. 26) from the central region to the front tip region is similarly sloped. It may be contained in a collective inclusion area (1 in FIG. 25) of an exterior (cover) material (2 in FIG. 24) provided with an area (3 in FIG. 26).
“Other Embodiments” (Part 7)

図１の実施形態では、平坦な後部座面域（図１の１）を設けたが、硬軟一体化弾性体（図３０）に、後方下がりの、スロープ（傾斜）（図３０の３）を設け、同じく、後方下がりの、スロープ（傾斜）（図２７の４）を設けた外装（カバー）材（図２７の３）の、硬軟一体化弾性体包含域（図２８の１）に収めるものでも良い。
「他の実施形態」（其の８）In the embodiment of FIG. 1, a flat rear seat surface area (1 in FIG. 1) is provided, but a slope (inclination) (3 in FIG. 30) that is lowered rearward is added to the hard and soft integrated elastic body (FIG. 30). Provided in the hard and soft integrated elastic body inclusion area (1 in FIG. 28) of the exterior (cover) material (3 in FIG. 27) provided with a slope (inclination) (4 in FIG. But it ’s okay.
“Other Embodiments” (Part 8)

図１の実施形態では、平坦な後部座面域（図１の１）を設けたが、硬軟一体化弾性体（図３４）に、滑り止め（凸部）（図３４の３）を設け、同じく、滑り止め（凸部）（図３２の５）を設けた外装（カバー）材（図３１の３）の、硬軟一体化弾性体包含域（図３２の１）に収めるものでも良い。In the embodiment of FIG. 1, a flat rear seat surface area (1 in FIG. 1) is provided, but a non-slip (projection) (3 in FIG. 34) is provided on the hard and soft integrated elastic body (FIG. 34), Similarly, it is also possible to fit in a hard / soft integrated elastic body inclusion region (1 in FIG. 32) of an exterior (cover) material (3 in FIG. 31) provided with a non-slip (convex portion) (5 in FIG. 32).

この発明の実施形態を示す斜視図である。〔符号の説明〕１は、後部座面域２は、前部座面域３は、外装（カバー）材It is a perspective view which shows embodiment of this invention. [Explanation of Symbols] 1 is a rear seat surface area 2 is a front seat surface area 3 is an exterior (cover) material

弾性体の包含域を示す斜視図である。〔符号の説明〕１は、硬軟一体化弾性体包含域２は、軟質弾性体包舎域３は、間仕切り４は、外装（カバー）材It is a perspective view which shows the inclusion area of an elastic body. [Explanation of Symbols] 1 is a hard / soft integrated elastic body inclusion area 2 is a soft elastic body enclosure area 3 is a partition 4 is an exterior (cover) material

軟質弾性体の斜視図である。It is a perspective view of a soft elastic body. 硬軟一体化弾性体の斜視図である。〔符号の説明〕１は、軟質弾性体域２は、硬質弾性体域It is a perspective view of a hard soft integrated elastic body. [Explanation of Symbols] 1 is a soft elastic body region 2 is a hard elastic body region

他の実施形態（その１）の斜視図である。〔符号の説明〕１は、後部座面域２は、前部座面域３は、外装（カバー）材It is a perspective view of other embodiment (the 1). [Explanation of Symbols] 1 is a rear seat surface area 2 is a front seat surface area 3 is an exterior (cover) material

他の実施形態（その１）の弾性体包含域を示す斜視図である。〔符号の説明〕１は、一括包含域２は、外装（カバー）材It is a perspective view which shows the elastic body inclusion area of other embodiment (the 1). [Explanation of Symbols] 1 is a collective inclusion area 2 is an exterior (cover) 他の実施形態（その１）の硬軟一体化弾性体の斜視図である。〔符号の説明〕１は、軟質弾性体域（二箇所）２は、硬質弾性体域It is a perspective view of the hard-soft integrated elastic body of other embodiment (the 1). [Explanation of Symbols] 1 is a soft elastic region (two locations) 2 is a hard elastic region

他の実施形態（その２）の斜視図である。〔符号の説明〕１は、後部座面域２は、前部座面域３は、外装（カバー）材４は、傾斜It is a perspective view of other embodiment (the 2). [Explanation of Symbols] 1 is a rear seat surface area 2 is a front seat surface area 3 is an exterior (cover) material 4 is inclined

他の実施形態（その２）の弾性体包含域を示す斜視図である。〔符号の説明〕１は、硬軟一体化弾性体包含域２は、軟質弾性体包含域３は、間仕切り４は、傾斜５は、外装（カバー）材It is a perspective view which shows the elastic body inclusion area of other embodiment (the 2). [Explanation of Symbols] 1 is a hard / soft integrated elastic body containing area 2 is a soft elastic body containing area 3 is a partition 4 is inclined 5 is an exterior (cover) material

他の実施形態（その２）の軟質弾性体の斜視図である。It is a perspective view of the soft elastic body of other embodiment (the 2). 他の実施形態（その２）の硬軟一体化弾性体の斜視図である。〔符号の説明〕１は、軟質弾性体域２は、硬質弾性体域３は、傾斜It is a perspective view of the soft-soft integrated elastic body of other embodiment (the 2). [Explanation of Symbols] 1 is a soft elastic body region 2 is a hard elastic body region 3 is a slope

他の実施形態（その３）の斜視図である。〔符号の説明〕１は、後部座面域２は、前部座面域３は、外装（カバー）材４は、傾斜It is a perspective view of other embodiment (the 3). [Explanation of Symbols] 1 is a rear seat surface area 2 is a front seat surface area 3 is an exterior (cover) material 4 is inclined 他の実施形態（その３）の弾性体包含域を示す斜視図である。〔符号の説明〕１は、一括包含域２は、傾斜３は、外装（カバー）材It is a perspective view which shows the elastic body inclusion area of other embodiment (the 3). [Explanation of Symbols] 1 is a collective coverage area 2 is inclined 3 is an exterior (cover) material

他の実施形態（その３）の硬軟一体化弾性体の斜視図である。〔符号の説明〕１は、軟質弾性体域２は、硬質弾性体域３は、傾斜It is a perspective view of the hard-soft integrated elastic body of other embodiment (the 3). [Explanation of Symbols] 1 is a soft elastic body region 2 is a hard elastic body region 3 is a slope

他の実施形態（その４）の斜視図である。〔符号の説明〕１は、下段部２は、上段部３は、外装（カバー）材（二箇所）It is a perspective view of other embodiments (the 4). [Explanation of Symbols] 1 is the lower part 2 is the upper part 3 is the exterior (cover) material (two locations)

他の実施形態（その４）の弾性体包含域を示す斜視図である。〔符号の説明〕１は、硬質弾性体包含域２は、軟質弾性体包含域３は、間仕切り４は、軟質弾性体包含域５は、接続具６は、外装（カバー）材（二箇所）It is a perspective view which shows the elastic body inclusion area of other embodiment (the 4). [Explanation of Symbols] 1 is a hard elastic body inclusion area 2 is a soft elastic body inclusion area 3 is a partition 4 is a soft elastic body inclusion area 5 is a connector 6 is an exterior (cover) material (two places)

他の実施形態（その４）の軟質弾性体の斜視図である。It is a perspective view of the soft elastic body of other embodiment (the 4). 他の実施形態（その４）の硬質弾性体の斜視図である。It is a perspective view of the hard elastic body of other embodiment (the 4). 他の実施形態（その５）の斜視図である。〔符号の説明〕１は、上段部２は、下段後部３は、下段前部４は、外装（カバー）材（三箇所）It is a perspective view of other embodiments (the 5). [Explanation of Symbols] 1 is the upper stage 2 is the lower rear part 3 is the lower front part 4 is the exterior (cover) material (three locations)

他の実施形態（その５）の弾性体包含域を示す後方斜視図である。〔符号の説明〕１は、軟質弾性体上段部包含域２は、硬質弾性体下段後部包含域３は、軟質弾性体下段前部包含域４は、接続具５は、外装（カバー）材（三箇所）It is a back perspective view which shows the elastic body inclusion area of other embodiment (the 5). [Explanation of Symbols] 1 is a soft elastic body upper stage inclusion area 2 is a hard elastic body lower stage rear area inclusion area 3 is a soft elastic body lower stage front area inclusion area 4 is a connector 5 is an exterior (cover) material (cover) (Three places)

他の実施形態（その５）の折り重ねを示す後方斜視図である。〔符号の説明〕１は、軟質弾性体上段部包含域２は、硬質弾性体下段後部包含域３は、軟質弾性体下段前部包含域４は、接続具（二箇所）５は、外装（カバー）材（三箇所）It is a back perspective view showing folding of other embodiments (the 5). [Explanation of Symbols] 1 is a soft elastic body upper stage inclusion area 2 is a hard elastic body lower stage rear area inclusion area 3 is a soft elastic body lower stage front area inclusion area 4 is a connector (two places) 5 is an exterior ( Cover) material (three places)

他の実施形態（その５）の軟質弾性体の斜視図である。It is a perspective view of the soft elastic body of other embodiment (the 5). 他の実施形態（その５）の硬質弾性体の斜視図である。It is a perspective view of the hard elastic body of other embodiment (the 5). 他の実施形態（その６）の斜視図である。〔符号の説明〕１は、スロープ域２は、外装（カバー）材It is a perspective view of other embodiment (the 6). [Explanation of Symbols] 1 is a slope area 2 is an exterior (cover) material

他の実施形態（その６）の弾性体包含域を示す斜視図である。〔符号の説明〕１は、一括包含域２は、スロープ域３は、外装（カバー）材It is a perspective view which shows the elastic body inclusion area of other embodiment (the 6). [Explanation of Symbols] 1 is a collective inclusion area 2 is a slope area 3 is an exterior (cover) material 他の実施形態（その６）の硬軟一体化弾性体の斜視図である。〔符号の説明〕１は、軟質弾性体域２は、硬質弾性体域３は、スロープ域It is a perspective view of the soft-soft integrated elastic body of other embodiment (the 6). [Explanation of Symbols] 1 is a soft elastic body region 2 is a hard elastic body region 3 is a slope region

他の実施形態（その７）の斜視図である。〔符号の説明〕１は、後部座面域２は、前部座面域３は、外装（カバー）材４は、スロープ（傾斜）It is a perspective view of other embodiments (the 7). [Explanation of Symbols] 1 is a rear seat surface area 2 is a front seat surface area 3 is an exterior (cover) material 4 is a slope (tilt)

他の実施形態（その７）の弾性体包含域を示す斜視図である。〔符号の説明〕１は、硬軟一体化弾性体包含域２は、軟質弾性体包含域３は、間仕切り４は、外装（カバー）材５は、スロープ（傾斜）It is a perspective view which shows the elastic body inclusion area of other embodiment (the 7). [Explanation of Symbols] 1 is a hard / soft integrated elastic body inclusion area 2 is a soft elastic body inclusion area 3 is a partition 4 is an exterior (cover) material 5 is a slope (tilt)

他の実施形態（その７）の軟質弾性体の斜視図である。It is a perspective view of the soft elastic body of other embodiment (the 7). 他の実施形態（その７）の硬軟一体化弾性体の斜視図である。〔符号の説明〕１は、軟質弾性体域２は、硬質弾性体域３は、スロープ（傾斜）It is a perspective view of the hard-soft integrated elastic body of other embodiment (the 7). [Explanation of Symbols] 1 is a soft elastic body region 2 is a hard elastic body region 3 is a slope (inclination)

他の実施形態（その８）の斜視図である。〔符号の説明〕１は、後部座面域２は、前部座面域３は、外装（カバー）材４は、滑り止め（凸部）It is a perspective view of other embodiment (the 8). [Explanation of Symbols] 1 is a rear seat surface area 2 is a front seat surface area 3 is an exterior (cover) material 4 is a non-slip (convex portion) 他の実施形態（その８）の弾性体包含域を示す斜視図である。〔符号の説明〕１は、硬軟一体化弾性体包含域２は、軟質弾性体包含域３は、間仕切り４は、外装（カバー）材５は、滑り止め（凸部）It is a perspective view which shows the elastic body inclusion area of other embodiment (the 8). [Explanation of Symbols] 1 is hard-soft integrated elastic body inclusion area 2 is soft elastic body inclusion area 3 is partition 4 is exterior (cover) material 5 is anti-slip (convex part)

他の実施形態（その８）の軟質弾性体の斜視図である。It is a perspective view of the soft elastic body of other embodiment (the 8). 他の実施形態（その８）の硬軟一体化弾性体の斜視図である。〔符号の説明〕１は、軟質弾性体域２は、硬質弾性体域３は、滑り止め（凸部）It is a perspective view of the soft-soft integrated elastic body of other embodiment (the 8). [Explanation of Symbols] 1 is a soft elastic region 2 is a hard elastic region 3 is a non-slip (convex portion)

Claims

Only the soft elastic body (Fig. 3) is included in the front half inclusion area (Fig. 2) of the exterior (cover) material (3 of Fig. 1) provided with a partition (3 in Fig. 2) at the lower center of the seating surface. Contain. However, a soft elastic body for the upper half (1 in FIG. 4) and a hard elastic body for the lower half (2 in FIG. 4) are joined or integrally formed in the rear half inclusion area (1 in FIG. 2). The hard-soft heterogeneous two-layered elastic body is accommodated.
Depending on the mass of the inclusion material that is unique in hardness and softness, a step is provided in the front half (2 in FIG. 1) and back half (1 in FIG. 1) area of the seating surface, and cushioning (elasticity) Step cushion, which is characterized by giving it hard and soft.