JP5238204B2 - Auxiliary chair for portable seat - Google Patents

Auxiliary chair for portable seat Download PDF

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JP5238204B2
JP5238204B2 JP2007230393A JP2007230393A JP5238204B2 JP 5238204 B2 JP5238204 B2 JP 5238204B2 JP 2007230393 A JP2007230393 A JP 2007230393A JP 2007230393 A JP2007230393 A JP 2007230393A JP 5238204 B2 JP5238204 B2 JP 5238204B2
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seat
bottom plate
support legs
plate
pair
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JP2009061033A (en
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邦晴 君ヶ袋
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邦晴 君ヶ袋
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Description

本発明は、畳等の床面に正座をする際に臀部の下に置いて足が痺れるのを防止する正座用補助椅子に関し、より詳細には、携帯性に優れた正座用補助椅子に関する。   The present invention relates to an auxiliary seat chair for sitting on the floor surface of a tatami mat or the like so as to prevent a foot from being numbing and more particularly to an auxiliary chair for sitting seat having excellent portability.

従来の正座用補助椅子として、床面に接する底板と、臀部が載せられる座板と、正面より見てX形に交差するように下端が底板に上端が座板に回動自在に取り付けられた1対の支持脚とを備えてなり、1対の支持脚がこれらの長さ中間位置において回動自在に連結されているものが知られている。また、上記の正座用補助椅子においては、一方の支持脚の下端が底板に対して着脱自在となされるとともに、他方の支持脚の上端が座板に対して着脱自在となされていて、両支持脚を折り畳んで底板の上に座板を重ねることによりコンパクト化して携帯し易いように工夫されている(例えば下記特許文献1参照)。   As a conventional auxiliary seat chair, a bottom plate in contact with the floor, a seat plate on which a buttock is placed, and a lower end and a top end that are pivotably attached to the bottom plate so as to intersect the X shape when viewed from the front. It is known that a pair of support legs are provided, and the pair of support legs are rotatably connected at intermediate positions of these lengths. Further, in the above-mentioned auxiliary seat chair, the lower end of one support leg is detachable from the bottom plate, and the upper end of the other support leg is detachable from the seat plate. It is devised to make it compact and easy to carry by folding the legs and stacking the seat plate on the bottom plate (see, for example, Patent Document 1 below).

しかしながら、上記の正座用補助椅子の場合、1対の支持脚が長さ中間位置で連結されているため、該連結部に着座時の荷重が集中してしまう。よって、使用に伴い、支持脚どうしの連結部が破損するおそれがあった。また、破損を防止するために上記連結部の強度を上げることも考えられるが、それには、材料コストが高くつく上、寸法を小さくすることができず、携帯性の面でも不利であった。
加えて、上記の正座用補助椅子においては、両支持脚を折り畳む際、一方の支持脚の下端を底板から取り外すとともに、他方の支持脚の上端を座板から取り外す必要があるため、その作業が面倒であるという問題があった。
特開2006−1588525号公報
However, in the case of the above-mentioned auxiliary seat chair, since a pair of support legs are connected at an intermediate position in the length, a load at the time of sitting is concentrated on the connecting portion. Therefore, with use, there is a possibility that the connecting portion between the support legs is damaged. In order to prevent breakage, it is conceivable to increase the strength of the connecting portion. However, this increases the material cost, and the size cannot be reduced, which is disadvantageous in terms of portability.
In addition, in the above-mentioned auxiliary seat chair, it is necessary to remove the lower end of one support leg from the bottom plate and the upper end of the other support leg from the seat plate when folding both support legs. There was a problem of being troublesome.
JP 2006-1588525 A

本発明の目的は、集中荷重による破損のおそれがなくて耐久性に優れ、しかも簡単に折り畳んで携帯することができる正座用補助椅子を安価に提供することにある。   An object of the present invention is to provide an inexpensive auxiliary chair for sitting, which is excellent in durability without being damaged by a concentrated load, and can be easily folded and carried.

本発明による携帯式正座用補助椅子は、床面に接する底板と、臀部が載せられる座板と、正面より見てX形に交差するように、下端が底板に、上端が座板に、それぞれ前後方向にのびる水平軸周りに回動自在に取り付けられた1対の支持脚とを備えてなり、座板が左右に傾動しうるように、1対の支持脚どうしは連結されておらず、また、1対の支持脚を折り畳んで底板の上に座板を重ねられるように、いずれか一方の支持脚の下端または上端が底板または座板に対して着脱自在となされているものである。   The portable auxiliary seat auxiliary chair according to the present invention has a bottom plate in contact with the floor, a seat plate on which a buttock is placed, and a lower end on the bottom plate and an upper end on the seat plate so as to intersect with the X shape when viewed from the front. A pair of support legs that are pivotably mounted around a horizontal axis extending in the front-rear direction, and the pair of support legs are not connected so that the seat plate can tilt to the left and right, Moreover, the lower end or upper end of any one support leg is made detachable with respect to a baseplate or a seat board so that a pair of support legs can be folded and a seat board can be piled up on a baseplate.

本発明の携帯式正座用補助椅子にあっては、座板が左右に傾動しうるように、1対の支持脚どうしが連結されていないので、着座時の体のバランスは両足によって保たれる一方、着座時の荷重は座板から両支持脚を通じて底板、さらには床面に左右均等に伝わり、安定した支持状態が得られる。また、本発明の補助椅子にあっては、一方の支持脚の下端または上端を底板または座板から取り外すだけで、両支持脚を折り畳んで底板の上に座板を重ねられる。
したがって、本発明の携帯式正座用補助椅子によれば、従来技術のように集中荷重による破損のおそれがなく、長期間安心して使用することができるとともに、材料コストが抑えられ、また、寸法を小さくして更なるコンパクト化を図ることが可能である。加えて、本発明の補助椅子によれば、両支持脚を折り畳んでコンパクト化する作業をより簡単に行うことができ、使い勝手が向上する。さらに、本発明の補助椅子によれば、使用することによって体の平衡感覚を養うことができる。
In the portable seated auxiliary chair of the present invention, since the pair of support legs are not connected so that the seat plate can tilt left and right, the balance of the body at the time of sitting is maintained by both feet. On the other hand, the load at the time of sitting is transmitted equally from the seat plate to the bottom plate and further to the floor through both support legs, and a stable support state is obtained. Further, in the auxiliary chair of the present invention, by simply removing the lower end or upper end of one of the support legs from the bottom plate or the seat plate, both the support legs can be folded and the seat plate can be stacked on the bottom plate.
Therefore, according to the portable seated auxiliary chair of the present invention, there is no risk of breakage due to concentrated load as in the prior art, it can be used safely for a long time, the material cost can be suppressed, and the dimensions can be reduced. It is possible to further reduce the size by reducing the size. In addition, according to the auxiliary chair of the present invention, the work of folding both supporting legs and making them compact can be performed more easily, and the usability is improved. Furthermore, according to the auxiliary chair of the present invention, the sense of balance of the body can be nurtured by using it.

本発明による携帯式正座用補助椅子において、座板が、1対の支持脚の上端が取り付けられる基板と、互いに接近離間しうるように基板の上にスライド自在に取り付けられた左右1対の上面板とを備えている場合がある。   In the portable auxiliary seat auxiliary chair according to the present invention, the seat plate is mounted on the board to which the upper ends of the pair of support legs are attached, and on the pair of left and right slidably mounted on the board so as to be close to and away from each other. There may be a face plate.

上記態様の補助椅子によれば、使用時には1対の上面板を互いに離間する方向に移動させ、携帯時には両上面板を互いに接近する方向に移動させるように構成することができるので、それによって、携帯時の更なるコンパクト化を図ることができる。   According to the auxiliary chair of the above aspect, when used, the pair of upper surface plates can be moved in directions away from each other, and when carried, both upper surface plates can be moved in directions closer to each other. Further downsizing when carrying can be achieved.

本発明による携帯式正座用補助椅子において、両支持脚の上下端それぞれが取り付けられる4つの取付部のうちいずれか1つが、底板または座板に左右方向にスライド自在に設けられかつ固定手段により任意の位置で固定される取付部材よりなるのが好ましい。   In the portable seat chair according to the present invention, any one of the four mounting portions to which the upper and lower ends of both support legs are respectively mounted is slidable in the left-right direction on the bottom plate or the seat plate, and is arbitrarily set by the fixing means. It is preferable that the mounting member is fixed at the position.

両支持脚の上下端を取り付ける4つの取付部のうちいずれか1つが上記のようなスライド式の取付部材によって構成されていれば、底板または座板に対する取付部材の固定位置を左右方向に任意に変更することにより、使用者の体格等に応じて、補助椅子の高さを無段階で調整することができる上、その操作も容易である。取付部材を底板または座板に固定する手段は、特に限定されないが、操作性やコストを考慮すると、ネジ手段が好適に用いられる。
なお、補助椅子の高さ調整手段は、上記以外のものであってもよく、例えば、一方の支持脚の下端または上端が着脱自在に取り付けられる取付部が、底板または座板に、左右方向に間隔をおいて2つ以上設けられている場合もある。この場合、一方の支持脚の下端または上端を取り付ける取付部を変更することにより、使用者の体格等に応じて、補助椅子の高さを容易に変更することができる。
If any one of the four attachment portions for attaching the upper and lower ends of both support legs is constituted by the slide-type attachment member as described above, the fixing position of the attachment member with respect to the bottom plate or the seat plate can be arbitrarily set in the left-right direction. By changing the height, the height of the auxiliary chair can be adjusted steplessly according to the physique of the user, and the operation is also easy. The means for fixing the mounting member to the bottom plate or the seat plate is not particularly limited, but screw means are preferably used in consideration of operability and cost.
The height adjustment means of the auxiliary chair may be other than those described above. For example, the attachment portion to which the lower end or upper end of one support leg is detachably attached is attached to the bottom plate or the seat plate in the left-right direction. There may be two or more provided at intervals. In this case, the height of the auxiliary chair can be easily changed according to the user's physique or the like by changing the attachment portion to which the lower end or the upper end of one of the support legs is attached.

次に、図1〜図6を参照して、本発明の実施形態を説明する。
なお、以下の説明において、「左右」は図1の左右をいい、また、図2の右を「前」、同左を「後」というものとする。
Next, an embodiment of the present invention will be described with reference to FIGS.
In the following description, “left and right” refer to the left and right in FIG. 1, and the right in FIG. 2 is referred to as “front” and the left is referred to as “rear”.

図1〜図5には、本発明の第1実施形態が示されている。図1および図2に示すように、この実施形態の携帯式正座用補助椅子(1)は、床面(F)に接する底板(2)と、臀部(B)が載せられる座板(3)と、正面より見てX形に交差するように、下端が底板(2)に、上端が座板(3)に、それぞれ前後方向にのびる水平軸周りに回動自在に取り付けられた1対の支持脚(4A)(4B)とを備えてなる。
1対の支持脚(4A)(4B)どうしは連結されておらず、それによって座板(3)が左右に傾動可能となっている。
一方の支持脚(4A)の下端は底板(2)に対して着脱自在となされている。従って、同支持脚(4A)の下端を底板(2)から外すことにより、両支持脚(4A)(4B)を折り畳んで底板(2)の上に座板(3)を重ねることができる。
1 to 5 show a first embodiment of the present invention. As shown in FIGS. 1 and 2, the portable seated auxiliary chair (1) of this embodiment includes a bottom plate (2) in contact with the floor surface (F) and a seat plate (3) on which a collar (B) is placed. And a pair of pivots attached to the bottom plate (2) and the upper end to the seat plate (3) so as to be rotatable around a horizontal axis extending in the front-rear direction so as to intersect the X shape when viewed from the front. Support legs (4A) (4B) are provided.
The pair of support legs (4A) and (4B) are not connected to each other, so that the seat plate (3) can be tilted left and right.
The lower end of one support leg (4A) is detachably attached to the bottom plate (2). Therefore, by removing the lower end of the support leg (4A) from the bottom plate (2), both the support legs (4A) and (4B) can be folded and the seat plate (3) can be stacked on the bottom plate (2).

各支持脚(4A)(4B)は、ステンレス鋼棒等の金属棒をU形に曲げ加工して形成されたものであって、前後1対の側枠部(41)と、両側枠部(41)の下端どうしをつなぐ下枠部(42)とを有している。
両支持脚(4A)(4B)の側枠部(41)は、全て同一の長さとなされている。また、一方の支持脚(4A)の下枠部(42)は、同支持脚(4A)の側枠部(41)どうしの間に他方の支持脚(4B)が収まるように、他方の支持脚(4A)の下枠部(42)よりも所定寸法だけ長くなっている。
一方の支持脚(4A)における両側枠部(41)の上端部(411)は、互いに反対側を向くように前後方向外側に折り曲げられている。また、他方の支持脚(4B)における両側枠部(41)の上端部(411)は、互いに向かい合うように前後方向内側に折り曲げられている。
支持脚(4A)(4B)のサイズは特に限定されないが、例えば、側枠部(41)の長さが約150mm程度、一方の支持脚(4A)の下枠部(42)の長さが約48mm程度、他方の支持脚(4B)の下枠部(42)の長さが約35mm程度、直径が約5mm程度となされる。
Each support leg (4A) (4B) is formed by bending a metal bar such as a stainless steel bar into a U shape, and includes a pair of front and rear side frame parts (41) and both side frame parts ( 41) and a lower frame portion (42) for connecting lower ends of the two.
The side frame portions (41) of both support legs (4A) (4B) are all the same length. Further, the lower frame portion (42) of one support leg (4A) supports the other support leg (4B) so that the other support leg (4B) fits between the side frame portions (41) of the support leg (4A). It is longer than the lower frame part (42) of the leg (4A) by a predetermined dimension.
The upper end portions (411) of the side frame portions (41) of the one support leg (4A) are bent outward in the front-rear direction so as to face opposite sides. Moreover, the upper end part (411) of the both-sides frame part (41) in the other support leg (4B) is bend | folded inside the front-back direction so that it may mutually face.
The size of the support legs (4A) (4B) is not particularly limited. For example, the length of the side frame part (41) is about 150 mm, and the length of the lower frame part (42) of one support leg (4A) is about The length of the lower frame portion (42) of the other support leg (4B) is about 35 mm and the diameter is about 5 mm.

底板(2)は、鋼板やアルミニウム板等の金属板によって形成されている。
底板(2)上面の右半部には、一方の支持脚(4A)の下端が着脱自在に取り付けられる取付部(21)が、左右方向に間隔をおいて2つ設けられている。各取付部(21)は、底板(21)の上面にカシメ等によって接合されかつ下枠部(42)を着脱自在に保持しうるように右端部が断面略C形に折り曲げられた金属板片よりなる。
図1に実線で示すように、一方の支持脚(4A)の下枠部(42)を内側の取付部(22)に取り付けた場合、補助椅子(1)の高さは、例えば約140mm程度である。一方、図1に2点鎖線で示すように、一方の支持脚(4A)の下枠部(42)を外側の取付部(22)に取り付けた場合、補助椅子(1)の高さは、例えば約125mm程度となる。よって、使用者は、自分の体格等に応じて、補助椅子(1)の高さを適宜選択することができる。
底板(2)上面の左端部には、他方の支持脚(4B)の下端、即ち、下枠部(42)を回動自在に取り付けるための取付部(22)が形成されている。取付部(22)は、底板(2)上面にカシメ等によって接合されかつ下枠部(42)のほぼ全周を包むように左端部が断面略円形に折り曲げられた金属板片よりなる。
また、底板(2)の上面には、前後両側縁部に沿ってのびる2つの補強リブ(23)が全長にわたって設けられている。これらの補強リブ(23)は、略山形の断面を有するものであって、支持脚(4A)(4B)の下枠部(42)両端付近の下方に位置するように形成されている。上記の補強リブ(23)により、底板(2)の厚みをそれ程大きくとらなくても十分な強度が得られるので、補助椅子(1)の軽量化が図られる。また、補強リブ(23)は、支持脚(4A)(4B)の下枠部(42)両端を補助的に支えるサポートとしても機能しうる。
底板(2)の下面には、ゴムや樹脂発泡体等よりなる裏面材(5)が接合されている。この裏面材(5)により、使用時の滑りが防止され、また、床面(F)が傷付くのが防止される。
底板(2)のサイズは、特に限定されないが、補助椅子(1)としての安定性を確保できる範囲でなるべく小さくした方が携帯性の面では有利であり、例えば、前後幅約76mm程度、左右長さ約85mm程度、厚さ約2mm程度となされる。
The bottom plate (2) is formed of a metal plate such as a steel plate or an aluminum plate.
On the right half of the upper surface of the bottom plate (2), two attachment portions (21) to which the lower end of one support leg (4A) is detachably attached are provided in the left-right direction at intervals. Each attachment portion (21) is a metal plate piece that is joined to the upper surface of the bottom plate (21) by caulking or the like and whose right end portion is bent into a substantially C-shaped cross section so that the lower frame portion (42) can be detachably held. It becomes more.
As shown by a solid line in FIG. 1, when the lower frame portion (42) of one support leg (4A) is attached to the inner attachment portion (22), the height of the auxiliary chair (1) is, for example, about 140 mm. It is. On the other hand, as shown by a two-dot chain line in FIG. 1, when the lower frame portion (42) of one support leg (4A) is attached to the outer attachment portion (22), the height of the auxiliary chair (1) is: For example, it is about 125 mm. Thus, the user can appropriately select the height of the auxiliary chair (1) according to his / her physique and the like.
At the left end of the upper surface of the bottom plate (2), a lower end of the other support leg (4B), that is, an attachment portion (22) for rotatably attaching the lower frame portion (42) is formed. The attachment portion (22) is formed of a metal plate piece that is joined to the upper surface of the bottom plate (2) by caulking or the like and whose left end portion is bent into a substantially circular cross section so as to wrap around the entire circumference of the lower frame portion (42).
Further, two reinforcing ribs (23) extending along the front and rear side edges are provided on the upper surface of the bottom plate (2) over the entire length. These reinforcing ribs (23) have a substantially chevron-shaped cross section, and are formed to be positioned below both ends of the lower frame portion (42) of the support legs (4A) and (4B). Since the reinforcing rib (23) can provide sufficient strength even if the thickness of the bottom plate (2) is not so large, the auxiliary chair (1) can be reduced in weight. Further, the reinforcing rib (23) can also function as a support that supports both ends of the lower frame portion (42) of the support legs (4A) and (4B).
A back surface material (5) made of rubber, resin foam or the like is joined to the lower surface of the bottom plate (2). The back material (5) prevents slipping during use and prevents the floor surface (F) from being damaged.
The size of the bottom plate (2) is not particularly limited, but it is advantageous in terms of portability to make it as small as possible within the range that can ensure the stability as the auxiliary chair (1). The length is about 85 mm and the thickness is about 2 mm.

座板(3)は、両支持脚(4A)(4B)の上端が取り付けられる基板(31)と、互いに接近離間しうるように基板(31)の上にスライド自在に取り付けられた左右1対の上面板(32A)(32B)とを備えている。
座板(3)のサイズは、特に限定されないが、座り心地や安定性を確保できる範囲でなるべく小さくした方が携帯性の面では有利であり、例えば、前後幅約76mm程度、縮小形態時の左右長さ約180mm程度、伸長形態時の左右長さ約240mm程度、上下高さ約11mm程度(後述するクッション材(6)の厚みを除く。)となされる。
The seat plate (3) is a pair of left and right slidably mounted on the substrate (31) so as to be close to and away from the substrate (31) to which the upper ends of both support legs (4A) and (4B) are attached. Top plate (32A) (32B).
The size of the seat plate (3) is not particularly limited, but it is advantageous in terms of portability to make it as small as possible within a range that can ensure sitting comfort and stability. The left and right lengths are about 180 mm, the left and right lengths are about 240 mm when extended, and the vertical heights are about 11 mm (excluding the thickness of the cushioning material (6) described later).

基板(31)は、水平な上壁部(311a)および上壁部(311a)の前後両側縁から下方にのびる垂下壁部(311b)を有する断面逆U形の金属製コア材(311)と、底壁部(312a)がコア材(311)の前後垂下壁部(311b)外面に溶接等により接合された1対の金属製溝形材(312)とよりなる。
基板(31)の左端部には、コア材(311)の前後垂下壁部(311b)および前後溝形材(312)の底壁部(312a)を貫通するように、前後2つの取付孔(33)があけられている。そして、これらの取付孔(33)に、一方の支持脚(4A)における両側枠部(41)の折り曲げられた上端部(411)が挿入されて、回動自在に保持されている。
基板(31)におけるコア材(311)下面の右端部には、他方の支持脚(4B)の上端、即ち、両側枠部(41)の折り曲げられた上端部(411)が回動自在に取り付けられる取付部(34)が形成されている。取付部(34)は、コア材(311)の上面にカシメ等によって接合されかつ両側枠部(41)の上端部(411)のほぼ全周を包むように右端部が断面略円形に折り曲げられた金属板片よりなる。
基板(31)は、コア材(311)の上壁部(311a)と前後垂下壁部(311b)とで形成される下方凹所(35)に、折り畳んだ状態の両支持脚(4A)(4B)を収容しうるような大きさを有している(図3、4参照)。
基板(31)には、前後溝形材(312)の底壁部(312a)の左右各半部において、それぞれ2つの係止孔(361)(362)が左右方向に所要間隔をおいて形成されている。
The substrate (31) includes a metal core member (311) having an inverted U-shaped cross section having a horizontal upper wall portion (311a) and a hanging wall portion (311b) extending downward from both front and rear side edges of the upper wall portion (311a). The bottom wall portion (312a) is composed of a pair of metal channel members (312) joined to the outer surfaces of the front and rear hanging wall portions (311b) of the core material (311) by welding or the like.
At the left end of the substrate (31), two mounting holes (front and rear) are provided so as to penetrate the front and rear hanging walls (311b) of the core material (311) and the bottom wall (312a) of the front and rear groove members (312). 33) is opened. And the upper end part (411) by which the both-side frame part (41) in one support leg (4A) was bent is inserted in these attachment holes (33), and is hold | maintained rotatably.
The upper end of the other support leg (4B), that is, the bent upper end (411) of the side frame (41) is attached to the right end of the lower surface of the core (311) of the substrate (31). A mounting portion (34) is formed. The attachment portion (34) is joined to the upper surface of the core material (311) by caulking or the like, and the right end portion thereof is bent into a substantially circular cross section so as to wrap around almost the entire periphery of the upper end portion (411) of the both side frame portions (41). It consists of a metal plate piece.
The substrate (31) has both support legs (4A) in a folded state in a lower recess (35) formed by the upper wall portion (311a) and the front and rear hanging wall portions (311b) of the core material (311). 4B) (see FIGS. 3 and 4).
In the substrate (31), two locking holes (361) and (362) are formed in the left and right halves of the bottom wall portion (312a) of the front and rear groove members (312) at a required interval in the left and right direction. Has been.

各上面板(32A)(32B)は、基板(31)の左右各半部にスライド自在に嵌め被せられるリップ溝形の断面を有するものであって、水平な上壁部(321)と、上壁部(321)の前後両側縁および左右方向外側の端縁から下方にのびる垂下壁部(322)(323)と、前後垂下壁部(322)の下縁から互いに向かい合うように前後方向内側に折れ曲がった水平な下縁部(324)とよりなる。これらの上面板(32A)(32B)は、例えば、鋼板やアルミニウム板等の金属板を曲げ加工することにより形成される。
各上面板(32A)(32B)における前後各垂下壁部(322)の内面には、上面板(32A)(32B)のスライド位置に応じて、基板(31)の組をなす左右2つの係止孔(361)(362)のいずれかに係り止められる係合部(371)が設けられている。係合部は、一端部がカシメ等により前後各垂下壁部(322)の内面に接合された板バネ(37)の他端部に形成された山形の折り曲げ凸部(371)よりなり、折り曲げ凸部(371)が係止孔(361)(362)に弾性的に嵌まり込むようになっている。
係合部(371)が左右方向内側の係止孔(361)に嵌まり込むと、両上面板(32A)(32B)は、これらの対向する端面どうしが近接する縮小形態に保持される。また、係合部(371)が左右方向外側の係止孔(362)に嵌まり込むと、両上面板(32A)(32B)は、これらの対向する端面どうしが最も離れる伸長形態に保持される。
なお、図示は省略したが、両上面板(32A)(32B)が基板(31)から抜け落ちないように、適宜ストッパを設けるようにしてもよい。
各上面板(32A)(32B)の上面には、クッション材(6)が接合されている。クッション材(6)の材料は、緩衝機能を有するものであれば特に限定されないが、例えば、軟質樹脂発泡シートやゴムシート、フェルト等が用いられる。また、クッション材(6)の厚みも、座り心地等を考慮して適宜に設定される。
Each upper surface plate (32A) (32B) has a lip groove-shaped cross-section that is slidably fitted to the left and right halves of the substrate (31), and has a horizontal upper wall (321) and an upper The hanging wall portions (322) and (323) extending downward from both the front and rear side edges and the laterally outer edge of the wall portion (321) and the lower edge of the front and rear hanging wall portion (322) so as to face each other. It consists of a bent horizontal lower edge (324). These upper surface plates (32A) (32B) are formed, for example, by bending a metal plate such as a steel plate or an aluminum plate.
On the inner surface of each of the front and rear hanging walls (322) in each upper surface plate (32A) (32B), there are two left and right members forming a set of substrates (31) according to the slide position of the upper surface plates (32A) (32B). An engaging portion (371) is provided to be engaged with any one of the stop holes (361) and (362). The engaging portion is composed of a mountain-shaped bent convex portion (371) formed on the other end portion of the leaf spring (37) joined to the inner surface of each of the front and rear hanging wall portions (322) by caulking or the like. The projecting portion (371) is elastically fitted into the locking holes (361) and (362).
When the engaging portion (371) is fitted in the locking hole (361) on the inner side in the left-right direction, the upper surface plates (32A) (32B) are held in a reduced form in which these opposing end surfaces are close to each other. Further, when the engaging portion (371) is fitted into the locking hole (362) on the outer side in the left-right direction, the upper surface plates (32A) (32B) are held in an extended form in which their opposing end surfaces are most separated from each other. The
Although not shown, stoppers may be provided as appropriate so that the upper surface plates (32A) and (32B) do not fall out of the substrate (31).
The cushion material (6) is joined to the upper surface of each upper surface plate (32A) (32B). The material of the cushion material (6) is not particularly limited as long as it has a buffer function, and for example, a soft resin foam sheet, a rubber sheet, a felt, or the like is used. Further, the thickness of the cushion material (6) is also set appropriately in consideration of sitting comfort and the like.

図3および図4は、補助椅子(1)の携帯時の形態を示すものである。携帯に際しては、まず、一方の支持脚(4A)の下枠部(42)を底板(3)の取付部(21)から取り外して、両支持脚(4A)(4B)を折り畳む。折り畳まれた両支持脚(4A)(4B)は座板(3)の基板(31)の下方凹所(35)に収容され、底板(2)の上に座板(3)が重ねられる。また、座板(3)の両上面板(32A)(32B)を左右方向内側にスライドさせて縮小形態にする。
このように形態を変えることで、補助椅子(1)は、全体がコンパクトな板状となり、例えばペンケースやこれと同程度のサイズの袋に収容して、手軽に持ち歩くことができる。また、上記の補助椅子(1)の場合、両支持脚(4A)(4B)を折り畳んでコンパクト化する作業もきわめて簡単であり、使い勝手がよい。
3 and 4 show the form of the auxiliary chair (1) when it is carried. When carrying, first, the lower frame part (42) of one support leg (4A) is removed from the attachment part (21) of the bottom plate (3), and both support legs (4A) (4B) are folded. The folded both support legs (4A) and (4B) are accommodated in the lower recess (35) of the base plate (31) of the seat plate (3), and the seat plate (3) is superimposed on the bottom plate (2). Further, both upper surface plates (32A) and (32B) of the seat plate (3) are slid inward in the left-right direction to be reduced.
By changing the form in this way, the auxiliary chair (1) as a whole becomes a compact plate shape, and can be easily carried by being housed in, for example, a pen case or a bag of the same size. Further, in the case of the auxiliary chair (1), the work of folding both supporting legs (4A) and (4B) to make them compact is very simple and easy to use.

図5は、補助椅子(1)の使用状態を示すものである。
補助椅子(1)の使用に際しては、図3、4に示す携帯時の形態から、座板(3)と底板(2)とをそれぞれの手で持って引き離し、次いで、一方の支持脚(4A)の下枠部(42)を底板(2)の取付部(21)に嵌め込んで取り付ける。補助椅子(1)の高さは、下枠部(42)を取り付ける取付部(21)を選択することにより、適宜に調整可能である。また、両上面板(32A)(32B)を左右方向外側にスライドさせて、座板(3)を伸長形態にする。
そして、畳等の床面(F)における正座した使用者の両足間に補助椅子(1)の底板(2)を置いて、座板(3)に臀部(B)を載せる。
そうすると、着座時の荷重、即ち、使用者の上半身の体重は、座板(3)から両支持脚(4A)(4B)を通じて底板(2)、さらには床面(F)に左右均等に伝わり、それによって安定した支持状態が得られる。また、上記の補助椅子(1)の場合、座板(3)が左右に傾動可能であるので、着座時の体のバランスは両足で保つようにする。従って、上記の補助椅子(1)を使用すれば、正座時の足の痺れが大幅に軽減される上、体の平衡感覚が養われる。
FIG. 5 shows the usage state of the auxiliary chair (1).
When the auxiliary chair (1) is used, the seat plate (3) and the bottom plate (2) are pulled apart from the carrying state shown in FIGS. The lower frame portion (42) is fitted into the attachment portion (21) of the bottom plate (2). The height of the auxiliary chair (1) can be appropriately adjusted by selecting the attachment portion (21) to which the lower frame portion (42) is attached. Moreover, both upper-surface board (32A) (32B) is slid to the left-right direction outer side, and a seat board (3) is made into an expansion | extension form.
Then, the bottom plate (2) of the auxiliary chair (1) is placed between the legs of the user sitting on the floor surface (F) such as a tatami mat, and the buttocks (B) is placed on the seat plate (3).
Then, the load at the time of sitting, that is, the weight of the upper body of the user is transmitted from the seat plate (3) to the bottom plate (2) through the both support legs (4A) and (4B), and further to the floor surface (F). Thereby, a stable support state can be obtained. In the case of the auxiliary chair (1), the seat plate (3) can be tilted left and right, so that the balance of the body at the time of sitting is maintained with both feet. Therefore, if the above auxiliary chair (1) is used, the numbness of the foot when sitting straight is greatly reduced, and the sense of balance of the body is nurtured.

図6には、本発明の第2実施形態が示されている。
この実施形態の携帯式正座用補助椅子(1)は、以下の点を除いて、図1〜図5に示す第1実施形態の補助椅子(1)と実質的に同一である。即ち、図6の補助椅子(1)の場合、一方の支持脚(4A)の下端(42)が着脱自在に取り付けられる取付部が、底板(2)の上面に左右方向にスライド自在に設けられかつビス(71)および締付けナット(72)により任意の位置で固定される取付部材(21A)によって構成されている。
FIG. 6 shows a second embodiment of the present invention.
The portable seated auxiliary chair (1) of this embodiment is substantially the same as the auxiliary chair (1) of the first embodiment shown in FIGS. 1 to 5 except for the following points. That is, in the case of the auxiliary chair (1) of FIG. 6, the attachment part to which the lower end (42) of one supporting leg (4A) is detachably attached is provided on the upper surface of the bottom plate (2) so as to be slidable in the left-right direction. And it is comprised by the attachment member (21A) fixed in arbitrary positions with a bis | screw (71) and a clamping nut (72).

底板(2)には、前後幅中央位置において左右方向にのびるスリット(24)が形成されている。スリット(24)は、底板(2)の下面側にビス(71)の頭部(71a)を収容しうるように、下方に向かって次第に幅が広がったテーパ状の横断面を有している。なお、スリットの横断面形状は、図示のものに限らず、使用するビスの頭部の形状に応じて適宜変更可能である。   The bottom plate (2) is formed with a slit (24) extending in the left-right direction at the center position in the front-rear width. The slit (24) has a tapered cross section that gradually widens downward so that the head (71a) of the screw (71) can be accommodated on the lower surface side of the bottom plate (2). . The cross-sectional shape of the slit is not limited to that shown in the figure, and can be changed as appropriate according to the shape of the screw head to be used.

取付部材(21A)は、一方の支持脚(4A)の下枠部(42)を着脱自在に保持しうるように右端部が断面略C形に折り曲げられた金属板片よりなり、底板(2)上面における補助リブ(23)どうしの間の部分に配されている。この取付部材(21A)は、底板(2)上面を左右方向には移動するが前後方向には移動しないように、補助リブ(23)どうしの間の距離とほぼ等しい前後幅を有するものとなされている。取付部材(21A)の下面には、ゴムシート等よりなるパッキン(8)が接合されている。取付部材(21A)およびパッキン(8)の左端部には、底板(2)のスリット(24)に対応する位置に、ビス(71)の軸部(71b)が挿通される貫通孔(25)(81)があけられている。   The attachment member (21A) is a metal plate piece whose right end is bent in a substantially C-shaped cross section so that the lower frame portion (42) of one support leg (4A) can be detachably attached. ) It is arranged in a portion between the auxiliary ribs (23) on the upper surface. The attachment member (21A) has a front-rear width substantially equal to the distance between the auxiliary ribs (23) so that the upper surface of the bottom plate (2) moves in the left-right direction but does not move in the front-rear direction. ing. A packing (8) made of a rubber sheet or the like is joined to the lower surface of the mounting member (21A). A through hole (25) through which the shaft (71b) of the screw (71) is inserted at a position corresponding to the slit (24) of the bottom plate (2) at the left end of the mounting member (21A) and the packing (8). (81) is opened.

締付けナット(72)は、取付部材(21A)の貫通孔(25)から上方に突出したビス(71)の軸部(71b)にねじ嵌められるものであって、その外周部には、回動操作時の滑りを防止するセレーション(721)が形成されている。   The tightening nut (72) is screwed to the shaft (71b) of the screw (71) protruding upward from the through hole (25) of the mounting member (21A), A serration (721) is formed to prevent slipping during operation.

図6に示す第2実施形態の補助椅子(1)にあっては、締付けナット(72)を緩めた状態で取付部材(21A)を左右方向にスライドさせて任意の位置に移動させた後、締付けナット(72)を締めることにより取付部材(21A)を底板(2)に固定することができる。従って、この補助椅子(1)によれば、図6に実線で示すように、スリット(24)の左端の位置で固定した取付部材(21A)に一方の支持脚(4A)の下枠部(42)を取り付けた場合に、高さが最大となり、また、図6に2点鎖線で示すように、スリット(24)の右端の位置で固定した取付部材(21A)に下枠部(42)を取り付けた場合に、高さが最小となり、さらに、これらの間においては無段階で高さ調整が可能であって、その操作も簡単である。   In the auxiliary chair (1) of the second embodiment shown in FIG. 6, after the attachment member (21A) is slid in the left-right direction and moved to an arbitrary position with the tightening nut (72) loosened, The mounting member (21A) can be fixed to the bottom plate (2) by tightening the tightening nut (72). Therefore, according to this auxiliary chair (1), as shown by a solid line in FIG. 6, the lower frame portion (4A) of one support leg (4A) is fixed to the mounting member (21A) fixed at the position of the left end of the slit (24). 42), the height is maximum, and as shown by a two-dot chain line in FIG. 6, the lower frame portion (42) is attached to the attachment member (21A) fixed at the right end position of the slit (24). When the is attached, the height is minimized, and the height can be adjusted steplessly between them, and the operation is also simple.

なお、本発明の補助椅子は、上記2つの実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内で適宜の変更を加えた上で実施することも勿論可能である。
例えば、上記2つの実施形態では、座板(3)が、左右1対のスライド自在な上面板(32A)(32B)を備えることにより伸縮可能となっているが、伸縮しない構造にすることも可能である。この場合、例えば、基板をコア材のみで構成するとともに、コア材の上面に一体物の上面板を接合して、座板を構成すればよい。
The auxiliary chair of the present invention is not limited to the two embodiments described above, and can of course be implemented with appropriate modifications within a range not departing from the gist of the present invention.
For example, in the above two embodiments, the seat plate (3) can be expanded and contracted by providing a pair of left and right slidable upper surface plates (32A) and (32B). Is possible. In this case, for example, the base plate may be constituted only by the core material, and the upper plate of the single body may be joined to the upper surface of the core material to constitute the seat plate.

本発明の第1実施形態に係る携帯式正座用補助椅子の一部を切り欠いて示す正面図である。It is a front view which cuts and shows a part of portable auxiliary seat auxiliary chair concerning a 1st embodiment of the present invention. 図1のII−II線に沿う携帯式正座用補助椅子の断面図である。It is sectional drawing of the auxiliary chair for portable seats which follows the II-II line of FIG. 上記補助椅子の携帯時の形態を示す正面図である。It is a front view which shows the form at the time of carrying the said auxiliary chair. 上記補助椅子の携帯時の形態を示す一部切欠き底面図である。It is a partially notched bottom view which shows the form at the time of carrying of the said auxiliary chair. 上記補助椅子の使用状態を示す正面図である。It is a front view which shows the use condition of the said auxiliary chair. 本発明の第2実施形態に係る携帯式正座用補助椅子を示すものであって、(a)は底板部分の拡大斜視図、(b)は垂直横断面図である。The portable auxiliary seat chair according to the second embodiment of the present invention is shown, in which (a) is an enlarged perspective view of a bottom plate portion, and (b) is a vertical cross-sectional view.

符号の説明Explanation of symbols

(F):床面
(B):臀部
(1):携帯式正座用補助椅子
(2):底板
(21):取付部
(21A):取付部材
(3):座板
(31):基板
(32A)(32B):上面板
(4A)(4B):1対の支持脚
(F): Floor (B): Saddle (1): Auxiliary chair for portable seat (2): Bottom plate (21): Mounting portion (21A): Mounting member (3): Seat plate (31): Substrate ( 32A) (32B): Top plate (4A) (4B): a pair of support legs

Claims (3)

床面(F)に接する底板(2)と、
臀部(B)が載せられる座板(3)と、
正面より見てX形に交差するように、下端が底板(2)に、上端が座板(3)に、それぞれ前後方向にのびる水平軸周りに回動自在に取り付けられた1対の支持脚(4A)(4B)とを備えてなり、
座板(3)が左右に傾動しうるように、1対の支持脚(4A)(4B)どうしは連結されておらず、
また、1対の支持脚(4A)(4B)を折り畳んで底板(2)の上に座板(3)を重ねられるように、両支持脚(4A)(4B)の上下端のうちいずれか一方の支持脚(4A)の下端または上端のみが底板(2)または座板に対して着脱自在となされていることを特徴とする、携帯式正座用補助椅子。
A bottom plate (2) in contact with the floor (F);
A seat plate (3) on which the buttocks (B) are placed;
A pair of support legs attached to the bottom plate (2) and the upper end to the seat plate (3) so as to be able to rotate around a horizontal axis extending in the front-rear direction so as to intersect the X shape when viewed from the front. (4A) (4B)
The pair of support legs (4A) (4B) are not connected to each other so that the seat plate (3) can tilt to the left and right,
Either of the upper and lower ends of both support legs (4A) and (4B) so that the pair of support legs (4A) and (4B) can be folded and the seat plate (3) can be stacked on the bottom plate (2). Only the lower end or upper end of one support leg (4A) is made detachable with respect to a baseplate (2) or a seat board, The portable auxiliary seat chair for seats characterized by the above-mentioned.
座板(3)が、1対の支持脚(4A)(4B)の上端が取り付けられる基板(31)と、互いに接近離間しうるように基板(31)の上にスライド自在に取り付けられた左右1対の上面板(32A)(32B)とを備えていることを特徴とする、請求項1記載の携帯式正座用補助椅子。   The left and right seat plates (3) are slidably mounted on the substrate (31) so as to be close to and away from the substrate (31) to which the upper ends of the pair of support legs (4A) (4B) are attached. The portable seated auxiliary chair according to claim 1, further comprising a pair of upper surface plates (32A) (32B). 両支持脚(4A)(4B)の上下端それぞれが取り付けられる4つの取付部のうちいずれか1つが、底板(2)または座板に左右方向にスライド自在に設けられかつ固定手段(71)(72)により任意の位置で固定される取付部材(21A)よりなることを特徴とする、請求項1または2記載の携帯式正座用補助椅子。   Any one of the four attachment portions to which the upper and lower ends of both support legs (4A) and (4B) are attached is provided on the bottom plate (2) or the seat plate so as to be slidable in the left-right direction, and the fixing means (71) ( The auxiliary chair for a portable seat according to claim 1 or 2, comprising an attachment member (21A) fixed at an arbitrary position according to 72).
JP2007230393A 2007-09-05 2007-09-05 Auxiliary chair for portable seat Active JP5238204B2 (en)

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JPS5633401Y2 (en) * 1977-01-17 1981-08-07
JPS6221957U (en) * 1985-07-25 1987-02-09
JP2006158852A (en) * 2004-12-10 2006-06-22 Shinken Sumitomo Folding legless chair
JP2007037802A (en) * 2005-08-03 2007-02-15 Ryobi Ltd Foldable seat elevating/lowering type wheelchair

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