JP2004180907A

JP2004180907A - Stackable chair

Info

Publication number: JP2004180907A
Application number: JP2002351100A
Authority: JP
Inventors: Naoyuki Maekawa; 尚幸前川
Original assignee: Itoki Crebio Corp
Current assignee: Itoki Crebio Corp
Priority date: 2002-12-03
Filing date: 2002-12-03
Publication date: 2004-07-02
Anticipated expiration: 2022-12-03
Also published as: JP4142940B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stackable chair by which a plurality of the chairs under an nonused state can be efficiently housed in a narrow place, and a plurality of which can be stacked in the vertical direction so that a plurality of the chairs can be safely moved, and a plurality of which being stacked do not move in the lateral direction or the longitudinal direction at the time of moving/carrying or the like. <P>SOLUTION: A cushioning body is attached on the lower surface of a seat plate or the lower surface of a leg body of the chairs which are located on the upper side so that the chairs located on the upper side from among a plurality of the chairs stacked in the vertical direction may not move at least in the lateral direction and forward to the seat plates of the chairs located on the lower side. Especially, the lower side of the cushioning body is formed into an approximate L-shape. Thus, the chairs can be easily and surely prevented from moving, and in addition, can be manufactured at a low cost. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明が属する技術分野】
本発明は、未使用状態の椅子を狭い場所に効率的に収納したり、同時に多数の椅子を移動することができるように、複数の椅子を上下に積重ね可能とした椅子に関するものである。
【０００２】
【従来の技術】
従来の積重ね椅子として特許文献１では、脚体は断面円形の棒材を側面視で略コの字状に折り曲げて形成したものを座板の左右に配置して構成している。詳しくは該脚体の上方水平杆の前後両端から前脚と後脚を正面視からみて後脚が前脚より外側に位置するように段差を設けて垂下し、そしてその上方水平杆の間に座板を取付け、該上方水平杆の下面に前後２個のプラスチック等の緩衝材が位置するように取付け、該緩衝材の下面が水平杆の断面アールに沿ったアール形状となっており、上下に椅子を積重ねたときに、上方の椅子が左右にずれない構成となっている。
【０００３】
又特許文献２では、脚体は断面円形のパイプ材を側面視台形状に折り曲げて形成したものを座板の左右に配置して構成している。詳しくは該脚体の連結杆部の前後両端から前脚と後脚を垂下し、該連結杆部より下方位置で前脚と後脚間に連結杆部と平行に横杆を取付け固定しており、該横杆の下面にゴム等の緩衝材を取付け、該緩衝材の下面が連結杆部の断面アールに合致するアール形状となっており、上下に椅子を積重ねたときに、上方の椅子が左右にずれない構成となっている。
【０００４】
しかし、特許文献１のものでは、上下に椅子を積重ねたときに上方の椅子はその緩衝材の下面形状が水平杆の形状に沿ったアール形状であり、下方の椅子に対し左右にずれないが、前方向には自由に移動するようになっている。そのため積重ね状態で移動させるときに床の凹凸に対し椅子がずれたり、場合によって倒れたりする危険があった。
【０００５】
又特許文献２のものでは、特許文献１と同様に、上方の椅子が下方の椅子に対し左右にはずれないが前方向には移動するようになっており移動時に危険性がともない、又上下に椅子を積重ねた場合上方の椅子と下方の椅子に大きな間隔が必要となり積重ねられる椅子の台数が制限されるという問題もあった。
【０００６】
【特許文献１】実公昭５８−４０９１９
【０００７】
【特許文献１】実公昭４５−１６１２５
【０００８】
【発明が解決しようとする課題】
そこで、前述の問題点に鑑み、本発明が解決しようとする課題は、複数の椅子を上下に積重ねた場合、上方の椅子が下方の椅子に対して確実に移動しないよう簡単で安価に構成できる積重ね可能とした椅子を提供する点にある。
【０００９】
【課題を解決するための手段】
前述の課題解決のために、背板と座板及び脚本体とからなり上下方向に積重ね可能とした椅子であって、上下に積重ねた複数の椅子のうち上方側に位置する椅子が、下方側に位置する椅子の座板に対し少なくとも左右及び前方向に移動しないように上方側に位置する椅子の座板下面か脚本体の下面に緩衝体を取付けた積重ね可能とした椅子を構成した。
【００１０】
ここで、脚本体は、水平杆と該水平杆の左右両端から垂下した垂直杆にて形成した正面視略門型の前脚体と、該前脚体と略同形の後脚体の該水平杆どうしを単又は複数の連結杆で連結して構成し、前脚体と後脚体のうち少なくとも一方の水平杆を該水平杆の左右両端の垂直杆が座板の間口幅より外側に位置するように取付け、該前脚体と後脚体の水平杆のそれぞれの下面に前記緩衝体を適宜間隔を設けて少なくとも２個以上着脱自在に固定し、該前脚体と後脚体のうち少なくとも一方側の水平杆の下面に取付けた緩衝体は側面視略Ｌ型形状とし、適宜間隔を設けて取付けた該略Ｌ型形状の緩衝体の側接当面どうしが下方側に位置する椅子の座板の両側端面を挟み込むように接当させたことを特徴とするのである。
【００１１】
また、座板は平面視形状において背板から座板前端面に向かい座板幅寸法が除々に広がる略台形状となることが好ましい。
【００１２】
また、座板の上面に、座板前端面と左右座板側端面から略同寸法内側寄りに平面視形状が座板と略同一の座クッション体を着脱自在に取付けることも好ましい。
【００１３】
【発明の実施の形態】
次に、本発明の実施形態を図面に基づいて説明する。
【００１４】
図１は本発明装置の第１実施例の上方からの斜視図、図２は本発明装置の第１実施例の下方からの斜視図、図３は本発明装置の第１実施例の積重ね状態を示す一部省略斜視図、図４は本発明装置の第１実施例の積重ね状態を示す側面図、図５は図４のＡ−Ａ線矢視図、図６は図４の底面図、図７は本発明装置の第２実施例を示す上方からの斜視図、図８（ａ）は緩衝体の正面図、図８（ｂ）は緩衝体の右側面図である。
【００１５】
第一実施例では、図１及び図２に示すように、１は椅子の座板を、２は椅子の背板を表し本実施例では座板と背板が一体に形成されて座本体Ａを構成している。そして座板１と背板２には座クッション体１０と背クッション体１１が着脱自在に取付けてある。座板１の底面には、門型形状の前脚体３と略同形の後脚体４を２本の連結体７、７にて溶接又はビス等にて固定して脚本体Ｂを構成しこの脚本体Ｂを座板１の底面にビス等の締結方法で固定している。さらに座板１の下面（本実施例では、前後の脚体の水平杆５の下面）には、上下に椅子を積重ねたときに上下の椅子が移動しないように樹脂又はゴム製の緩衝体８、９をビス等にて固定している。ここで座板１及び背板２は木製（合板、パーチクルボード、中質繊維板、天然木等）、金属製（アルミ、ステンレス、チタン等）又は樹脂製（アクリル板、オレフィン系素材等）の板材料を熱成型加工し（素材そのもの又は塗装を施したもの）たものであるが、本発明の形状を実現できるなら特にどのような加工方法、材料であっても可能である。又本発明では、座本体Ａが座板１と背板２を一体に成型したものであったが、座板１と背板２を別体で形成しそれらをパイプ材等別部材で連結して座本体Ａを構成してもよいことはもちろんである。又座及び背のクッション体としては、表面材としてクロスやレザー等を使用し、クッション材として発泡の樹脂や不織布等を使用しているが特にこれらに限定するものでないのはもちろんである。
【００１６】
更に詳しく図１〜図６に基づき各部を説明する。前記座本体Ａは座板１と背板２からなり、座板１は図１に示すように座板上面１０４と座板底面１０３と座板側端面１０２、１０２と座板前端面１０１とからなり図６に示すように平面視背板２から座板前端面１０１側に向かい左右座板側端面１０２、１０２の幅寸法が徐々に広がる略台形状となっている。そして本実施例では、座板１の上面に座板前端面１０１と左右座板側端面１０２、１０２から略同寸法内側寄りに平面視形状が座板１と略同一形状の座クッション体１０をビスや接着剤や面ファスナー等にて固定している。同様に背板２は背板表面２０３と背板裏面２０４と背板上端面２０１と背板側端面２０２、２０２とからなり正面視座板１から背板上端面２０１に向かい背板側端面２０２、２０２の幅寸法が徐々に広がる略逆台形状になっており、背板２の表面の上半分に背板上端面２０１と左右背板側端面２０２、２０２から略同寸法内側寄りに背クッション体１１を座板１と同様の方法で固定している。又背板１の上面に近接した位置には三日月型の貫通穴があり、取っ手として使用するようになっている。
【００１７】
前記脚本体Ｂは、図２に示すように略門型の前脚体３と略同形状の後脚体４を複数の連結体７にて溶接又はビス等にて固定して構成している。前脚体３は水平杆５と該水平杆５の両端部から略直角に垂直杆６を垂下し先端部に樹脂等のキャップを取付けている。又後脚体４も前脚体３と同様の構成となっている。そして前脚体３と後脚体４はそれぞれの水平杆５の２箇所に連結体７が平行になるように溶接又はビス等にて固定しているが、前脚体３と後脚体４が強固に固定できれば２本以上の連結体７でも、幅の広い連結体を１本で固定してもよい。
【００１８】
前記緩衝体８は、図８（ａ）、図８（ｂ）に示すように下方部に正面視略Ｌ型形状の段差部８０を形成しその段差部８０は座板１の座板側端面１０２、１０２に接当する側接当面８０２と座板上面１０４に接当する座接当面８０１からなる。又上方部には半円形の窪み部として上接当面８０３が形成されている。そして図２、図３に示すように緩衝体８は後脚体４の水平杆５の左右両端に上方部の半円形の上接当面８０３を水平杆５の下方外周部に沿わせ、下方部の略Ｌ型形状の段差部８０を互いに対面する方向に向けて座接当面８０１側からビス等にて固定する。又緩衝体９は緩衝体８における下方部の段差部８０がないものであり、外形寸法は高さ部分のみ段差部８０の寸法を差引いた寸法となったものである。
【００１９】
次に前記座本体Ａと前記脚本体Ｂの取付け方法について説明すると、図２に示すように座板１の座板底面１０３に脚本体Ｂの前記前脚体と後脚体の水平杆５および連結体７を接当し、水平杆５と連結体７の一方又は両方に設けた複数の貫通穴を通じ座板１の座板底板１０３に直接又は座板１に埋め込みナット等を設けてビス等にて固定している。そして脚本体Ｂの前脚体３及び後脚体４は水平杆５の幅寸法は座板１の左右座板側端面１０２、１０２間より幅が広くなっており、両垂直杆６が座板１の左右座側端面１０２、１０２間の外側に位置するようになっている。又後脚体４の水平杆５に取付けた左右の緩衝体８は座板１の左右座側端面１０２、１０２に緩衝体８の側接当面８０２がほぼ接当する位置に取付け、前脚体３の水平杆５に取付けた左右の緩衝体９は座板１の左右座側端面１０２、１０２間より内側に位置させて取付けている。
【００２０】
これらの椅子を上下方向に積重ねるには、下方の椅子の座板１の座板上面１０４に対し上方の椅子の座板底面１０３に取付けた前脚体３と後脚体４の左右垂直杆６が跨ぐように載せるのである。このとき下方の椅子の背板２の背板表面２０３に上方の椅子の背板２の背板裏面２０４が接当し、上方の椅子が下方の椅子に対し後方向に移動することはない。そして上方の椅子の座板１の座板底面１０３に配置固定した前脚体３の水平杆５に固定した２箇所の緩衝体９が下方の椅子の座板上面１０４の座板前端面１０１よりに位置するように載るとともに、後脚体の水平杆５に固定した左右２箇所の緩衝体８は該緩衝体８下方の段差部８０を互いに対抗する向きに固定され、該段差部８０における座接当面８０１と側接当面８０２が下方の椅子の座板１の左右の座板側端面１０２と座板上面１０４に接当し挟み込むように配置し、上方の椅子が下方の椅子に対し左右に移動できない構成となっている。そして該座板１の平面視形状が背板２から座板前端面１０１に向かい座板幅寸法が除々に広がる略台形状となっているので上方の椅子の後脚体４の水平杆５に固定した緩衝体８の段差部８０が下方の椅子の左右の座板側端面１０２、１０２に接当しているため上方の椅子が下方の椅子に対し前方に移動することもない。そして座板１の座板上面１０４に取付けた座クッション体１０は緩衝体８、９が位置する座板上面１０４より内方側に位置しており、該緩衝体８、９の高さ寸法を変更すれば座クッション体１０の厚みを自由に変えることも可能である。本実施例において座板１の底面に直接緩衝体８、９を取付けることや、緩衝体９を２箇所以上に取付けることも可能である。
【００２１】
図７は本発明装置の第２実施例である、本発明では、座板１の一方の座板側端面１０２又は左右の座板側端面１０２、１０２に単又は複数の座板切欠き部１２を設け、前記左右２箇所の緩衝体８の下方の段差部８０を互いに対抗する向きに前脚体３と後脚体４の水平杆５の一方又は両方に取付け、該段差部８０における底接当面８０１が座板１の座板上面１０４に接当し側接当面８０２が下方の椅子の座板１の一方側又は左右の座板側端面１０２の座板切欠き部１２に嵌入後、座板切欠き側端面１２ａに接当して座板１を挟み込むように配置し、上方の椅子が下方の椅子に対し左右及び前後に移動できない構成となっている。そして座クッション体１０に対しても第１実施例と同様自由に厚みの変更が可能であるとともに、座板１の底面に緩衝体８、９を直接取付けることや、緩衝体９を２箇所以上取付けることも可能である。そして本実施例の場合、座板１の平面視形状は背板２から座板前端面１０１に向かい座板幅寸法が除々に広がる略台形状に限らず、座板幅が同寸の長方形状（又は矩形状）や背板２から除々に座板幅が狭くなる形状であっても構わない。
【００２２】
【発明の効果】
以上に詳述したように、請求項１に記載の積重ね可能とした椅子は背板と座板及び脚本体とからなり上下方向に積重ね可能とした椅子であって、上下に積重ねた複数の椅子のうち上方側に位置する椅子が、下方側に位置する椅子の座板に対し少なくとも左右及び前方向に移動しないように上方側に位置する椅子の座板下面か脚体の下面に緩衝体を取付けたことを特徴としたのであって、上下方向に少ない間隔で椅子を積重ねることができるので狭いスペースにより多くの椅子を積重ねることができるとともに、これら積重ねた椅子を移動する際にし、積重ねた椅子が左右及び前後方向に移動しないので移動中に床の凹凸に対し不意のがたつき生じても椅子がずれたり倒れたりする危険性がない。
【００２３】
又請求項２に記載の積重ね可能とした椅子は請求項１に記載の積重ね可能とした椅子において、前記脚本体は、水平杆と該水平杆の左右両端から垂下した垂直杆にて形成した正面視略門型の前脚体と、該前脚体と略同形の後脚体の該水平杆同士を単又は複数の連結杆で連結して構成し、該前脚体と後脚体のうち少なくとも一方の水平杆を該水平杆の左右両端の垂直杆が座板の間口幅より外側に位置するように取付け、該前脚体と後脚体の水平杆のそれぞれの下面に前記緩衝体を適宜間隔を設けて少なくとも２個以上着脱自在に固定し、該前脚体と後脚体のうち少なくとも一方側の水平杆の下面に取付けた緩衝体は側面視略Ｌ型形状とし、適宜間隔を設けて取付けた該略Ｌ型形状の緩衝体の側接当面同士が下方側に位置する椅子の座板の両側端面を挟み込むように接当させたことを特徴としたものであって、請求項１記載の発明に加えて、緩衝体の形状をＬ型形状とすることで積重ねた椅子が左右及び前後に移動しない構成としたので、簡単な構造で確実にしかも安価に実現できるのである。
【００２４】
又請求項３に記載の積重ね可能とした椅子は請求項１又は請求項２に記載の積重ね可能とした椅子において、前記座板は平面視形状において背板から座板前端面に向かい幅寸法が除々に広がる略台形状となったことを特徴としたものであって、請求項１又は２に記載の発明に加えて座板の平面視形状を略台形状にすることで前方向の移動を確実に阻止できるので、座板に対し別途当止部材や加工を追加せずに確実に簡単にしかも安価に実現できる。
【００２５】
又請求項４に記載の積重ね可能とした椅子は請求項１〜３何れか１項に記載の積重ね可能とした椅子において、前記座板の上面に、座板の前端面と左右側端面から略同寸法内側寄りに平面視形状が座板と略同一の座クッション体を着脱自在に取付けたことを特徴としたものであって、座板の上面に別途座クッション体を取付けても椅子の積重ね方法に変更はなく、座クッション体を取付けた椅子と取付けていない椅子を積重ねることも可能である。又座クッション体の厚みを変更しても（例えば２倍の厚さ）緩衝体の高さ寸法を高くすることで椅子の積重ねが可能であり、種々の椅子に対応することができるのである。
【図面の簡単な説明】
【図１】本発明装置の第１実施例の斜め上方からの斜視図。
【図２】本発明装置の第１実施例の斜め下方からの斜視図。
【図３】本発明装置の第１実施例の積重ね状態を示す一部省略斜視図。
【図４】本発明装置の第１実施例の積重ね状態を示す側面図。
【図５】図４のＡ−Ａ線矢視図。
【図６】図４の底面図。
【図７】第２実施例を示す上方からの斜視図。
【図８】（ａ）は緩衝体の正面図、（ｂ）は緩衝体の右側面図である。
【符号の説明】
Ａ座本体
Ｂ脚本体
１座板
１０１座板前端面
１０２座板側端面
１０３座板底面
１０４座板上面
２背板
２０１背板上端面
２０２背板側端面
２０３背板表面
２０４背板裏面
３前脚体
４後脚体
５水平杆
６垂直杆
６ａキャップ
７連結体
８緩衝体
８０段差部
８０１座接当面
８０２側接当面
８０３上接当面
９緩衝体
１０座クッション体
１１背クッション体
１２座板切欠き部
１２ａ座板切欠き側端面[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a chair in which a plurality of chairs can be stacked up and down so that unused chairs can be efficiently stored in a narrow place or a large number of chairs can be moved at the same time.
[0002]
[Prior art]
In Patent Literature 1, as a conventional stacked chair, a leg is formed by bending a bar having a circular cross section into a substantially U-shape in a side view and arranging the leg on the left and right sides of a seat plate. Specifically, the front leg and the rear leg are suspended from the front and rear ends of the upper horizontal bar of the leg when viewed from the front so that the rear leg is located outside the front leg, and a step is provided. Is mounted so that two front and rear cushioning materials such as plastics are located on the lower surface of the upper horizontal rod. The lower surface of the cushioning material has a round shape along the cross section of the horizontal rod, Are stacked so that the upper chair does not shift left and right.
[0003]
In Patent Literature 2, a leg is formed by bending a pipe member having a circular cross section into a trapezoidal shape in a side view and disposing the leg member on the left and right sides of a seat plate. Specifically, the front leg and the rear leg are suspended from the front and rear ends of the connecting rod portion of the leg body, and a horizontal bar is attached and fixed between the front leg and the rear leg at a position below the connecting rod portion in parallel with the connecting rod portion, A cushioning material such as rubber is attached to the lower surface of the horizontal rod, and the lower surface of the cushioning material has a round shape that matches the cross-sectional radius of the connecting rod portion. It does not shift.
[0004]
However, in the case of Patent Literature 1, when chairs are stacked up and down, the upper chair has a round shape in which the lower surface of the cushioning material conforms to the shape of the horizontal rod, and does not shift left and right with respect to the lower chair. It can move freely in the forward direction. Therefore, there is a risk that the chair may shift or fall down depending on the unevenness of the floor when moving in a stacked state.
[0005]
Also, in the case of Patent Document 2, as in Patent Document 1, the upper chair does not deviate left and right with respect to the lower chair, but it moves forward, so there is no danger when moving, and When stacking chairs, there is also a problem that a large gap is required between the upper chair and the lower chair, which limits the number of chairs that can be stacked.
[0006]
[Patent Document 1] Japanese Utility Model Publication No. 58-40919
[0007]
[Patent Document 1] Japanese Utility Model Publication No. 45-16125
[0008]
[Problems to be solved by the invention]
Therefore, in view of the above-mentioned problems, the problem to be solved by the present invention is that when a plurality of chairs are stacked up and down, a simple and inexpensive configuration can be made so that the upper chair does not move reliably with respect to the lower chair. The object is to provide a stackable chair.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a chair comprising a back plate, a seat plate, and a leg body and capable of being vertically stacked, wherein a chair located on an upper side among a plurality of chairs stacked vertically, a lower side The chair is configured such that a cushion is attached to the lower surface of the seat plate or the lower surface of the leg body of the chair located on the upper side so as not to move at least to the left, right, and front with respect to the seat plate of the chair.
[0010]
Here, the leg body is formed by a front gate substantially in the form of a gate formed by a horizontal rod and vertical rods hanging down from both left and right ends of the horizontal rod, and the horizontal rods of a rear leg substantially identical in shape to the front leg. Are connected by one or a plurality of connecting rods, and at least one of the horizontal rods of the front leg and the rear leg is attached such that the vertical rods at both left and right ends of the horizontal rod are located outside the front width of the seat plate. At least two or more cushions are detachably fixed to the lower surfaces of the horizontal rods of the front leg and the rear leg at appropriate intervals, and at least one of the horizontal rods of the front leg and the rear leg is fixed. The cushion attached to the lower surface of the chair has a substantially L-shape when viewed from the side, and the side contact surfaces of the substantially L-shaped cushion attached at appropriate intervals are located on both lower ends of the seat plate of the chair. It is characterized by being brought into contact so as to be sandwiched.
[0011]
Further, it is preferable that the seat plate has a substantially trapezoidal shape in a plan view shape in which the width of the seat plate gradually increases from the back plate toward the front end surface of the seat plate.
[0012]
It is also preferable that a seat cushion body having the same shape as the seat plate in a plan view be detachably mounted on the upper surface of the seat plate inwardly from the front end surface of the seat plate and the left and right seat plate side end surfaces by substantially the same size inward.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is a perspective view of the first embodiment of the present invention from above, FIG. 2 is a perspective view of the first embodiment of the present invention from below, and FIG. 3 is a stacked state of the first embodiment of the present invention. FIG. 4 is a side view showing a stacked state of the first embodiment of the present invention, FIG. 5 is a view taken along line AA of FIG. 4, FIG. 6 is a bottom view of FIG. 7 is a perspective view from above showing a second embodiment of the device of the present invention, FIG. 8 (a) is a front view of a shock absorber, and FIG. 8 (b) is a right side view of the shock absorber.
[0015]
In the first embodiment, as shown in FIGS. 1 and 2, 1 is a chair seat plate, 2 is a chair back plate, and in this embodiment, the seat plate and the back plate are formed integrally and the seat body A Is composed. A seat cushion body 10 and a back cushion body 11 are detachably attached to the seat plate 1 and the back plate 2. On the bottom surface of the seat plate 1, a leg body B is formed by fixing a rear leg 4 having substantially the same shape as the gate-shaped front leg 3 with two connecting bodies 7, 7 by welding or screws. The leg body B is fixed to the bottom surface of the seat plate 1 by a fastening method such as a screw. Further, on the lower surface of the seat plate 1 (in this embodiment, the lower surface of the horizontal rod 5 of the front and rear legs), a resin or rubber cushion 8 is provided so that the upper and lower chairs do not move when the chairs are stacked up and down. , 9 are fixed with screws or the like. Here, the seat plate 1 and the back plate 2 are wooden (plywood, particle board, medium fiber board, natural wood, etc.), metal (aluminum, stainless steel, titanium, etc.) or resin (acrylic board, olefin-based material, etc.) board. The material is formed by thermoforming (the material itself or coated), but any processing method and material can be used as long as the shape of the present invention can be realized. Further, in the present invention, the seat body A is formed by integrally molding the seat plate 1 and the back plate 2, but the seat plate 1 and the back plate 2 are formed separately, and they are connected by a separate member such as a pipe material. Of course, the seat body A may be configured. As the cushion body for the seat and the back, cloth or leather or the like is used as a surface material, and foamed resin or nonwoven fabric is used as a cushion material, but it is a matter of course that the present invention is not particularly limited thereto.
[0016]
Each part will be described in more detail with reference to FIGS. The seat body A includes a seat plate 1 and a back plate 2, and the seat plate 1 is composed of a seat plate upper surface 104, a seat plate bottom surface 103, seat plate side end surfaces 102 and 102, and a seat plate front end surface 101 as shown in FIG. As shown in FIG. 6, the width of the left and right seat plate side end surfaces 102, 102 gradually increases from the back plate 2 toward the front end surface 101 of the seat plate in plan view. In the present embodiment, a seat cushion body 10 having a shape substantially similar to the shape of the seat plate 1 in plan view is provided on the upper surface of the seat plate 1 inward of the seat plate front end surface 101 and the left and right seat plate side end surfaces 102, 102 and substantially the same size inward. It is fixed with screws, adhesive or hook-and-loop fastener. Similarly, the backboard 2 includes a backboard front surface 203, a backboard back surface 204, a backboard upper end surface 201, and a backboard side end surface 202, 202. The width of the base 202 is gradually inverted so that the width of the base is gradually inverted. 11 is fixed in the same manner as the seat plate 1. A crescent-shaped through hole is provided at a position close to the upper surface of the back plate 1 so as to be used as a handle.
[0017]
As shown in FIG. 2, the leg main body B is configured by fixing a rear leg 4 having substantially the same shape as a substantially gate-shaped front leg 3 with a plurality of connectors 7 by welding or screws. The front leg 3 has a horizontal rod 5 and a vertical rod 6 which hangs at substantially right angles from both ends of the horizontal rod 5, and a cap made of resin or the like is attached to a tip end thereof. The rear leg 4 also has the same configuration as the front leg 3. The front leg 3 and the rear leg 4 are fixed to each of the two horizontal rods 5 by welding or screws so that the connecting members 7 are parallel to each other, but the front leg 3 and the rear leg 4 are firmly connected. As long as it can be fixed to two or more connecting members 7, a wide connecting member may be fixed by one.
[0018]
As shown in FIGS. 8A and 8B, the cushioning member 8 has a stepped portion 80 having a substantially L-shape in a front view at a lower portion, and the stepped portion 80 is an end surface of the seat plate 1 on the seat plate side. The contact surface 102 includes a side contact surface 802 that contacts the base plate 102 and a seat contact surface 801 that contacts the seat plate upper surface 104. An upper contact surface 803 is formed in the upper portion as a semicircular recess. As shown in FIGS. 2 and 3, the cushioning member 8 has a semicircular upper contact surface 803 of an upper portion on the left and right ends of the horizontal rod 5 of the rear leg 4 along the lower outer peripheral portion of the horizontal rod 5. Are fixed with screws or the like from the seating abutment surface 801 side in a direction facing each other. The buffer 9 has no step 80 at the lower portion of the buffer 8, and the outer dimension is the dimension obtained by subtracting the dimension of the step 80 only in the height portion.
[0019]
Next, a method of attaching the seat body A and the leg body B will be described. As shown in FIG. 2, the horizontal rod 5 of the front leg body and the rear leg body of the leg body B are connected to the bottom surface 103 of the seat plate 1 as shown in FIG. The body 7 is abutted, and through a plurality of through holes provided in one or both of the horizontal rod 5 and the connecting body 7, directly into the seat plate bottom plate 103 of the seat plate 1 or embedded in the seat plate 1, a nut or the like is provided, and screws or the like are provided. Fixed. In the front leg 3 and the rear leg 4 of the leg body B, the width of the horizontal rod 5 is wider than between the left and right seat plate side end surfaces 102, 102 of the seat plate 1, and both vertical rods 6 are Are located outside between the left and right seat side end surfaces 102, 102. The left and right shock absorbers 8 attached to the horizontal rod 5 of the rear leg 4 are attached at positions where the side contact surfaces 802 of the shock absorber 8 substantially contact the left and right seat side end surfaces 102, 102 of the seat plate 1. The left and right shock absorbers 9 attached to the horizontal rod 5 are mounted on the seat plate 1 so as to be located inside between the left and right seat side end surfaces 102, 102.
[0020]
In order to stack these chairs in the vertical direction, the left and right vertical bars 6 of the front leg 3 and the rear leg 4 attached to the bottom 103 of the upper chair against the upper surface 104 of the seat 1 of the lower chair. Is placed so that it straddles. At this time, the back plate back surface 204 of the upper chair back plate 2 abuts against the back plate surface 203 of the lower chair back plate 2, and the upper chair does not move backward with respect to the lower chair. Then, two cushions 9 fixed to the horizontal rod 5 of the front leg 3 fixed to the seat plate bottom surface 103 of the seat plate 1 of the upper chair are closer to the front end surface 101 of the seat plate upper surface 104 of the lower chair. The two shock absorbers 8 fixed to the horizontal rod 5 of the rear leg body are fixed so that the step portions 80 below the shock absorbers 8 oppose each other. The contact surface 801 and the side contact surface 802 are disposed so as to contact and sandwich the left and right seat plate side end surfaces 102 and the seat plate upper surface 104 of the seat plate 1 of the lower chair, and the upper chair moves left and right with respect to the lower chair. The configuration is not possible. The seat plate 1 has a substantially trapezoidal shape in a plan view from the back plate 2 to the front end surface 101 of the seat plate, and the width of the seat plate gradually increases. Since the step portion 80 of the fixed shock absorber 8 is in contact with the left and right seat plate side end surfaces 102, 102 of the lower chair, the upper chair does not move forward with respect to the lower chair. The seat cushion body 10 attached to the seat plate upper surface 104 of the seat plate 1 is located on the inner side of the seat plate upper surface 104 where the shock absorbers 8 and 9 are located. If changed, the thickness of the seat cushion body 10 can be freely changed. In this embodiment, it is possible to mount the buffers 8 and 9 directly on the bottom surface of the seat plate 1 or to mount the buffers 9 at two or more locations.
[0021]
FIG. 7 shows a second embodiment of the device of the present invention. In the present invention, one or a plurality of seat plate notches 12 are provided on one of the seat plate side end surfaces 102 or the left and right seat plate side end surfaces 102, 102 of the seat plate 1. And the step portions 80 below the two right and left shock absorbers 8 are attached to one or both of the horizontal rods 5 of the front leg 3 and the rear leg 4 so as to face each other, and a bottom contact surface of the step 80 is provided. 801 abuts against the seat plate upper surface 104 of the seat plate 1, and the side contact surface 802 fits into the seat plate notch 12 on one side of the seat plate 1 or the left and right seat plate side end surfaces 102 of the lower chair. The seat 1 is disposed so as to be in contact with the notch-side end surface 12a so that the upper chair cannot move left, right, front and rear with respect to the lower chair. The thickness of the seat cushion 10 can be freely changed in the same manner as in the first embodiment, and the cushions 8 and 9 can be directly attached to the bottom surface of the seat plate 1 or two or more cushions 9 can be attached. It is also possible to attach. In the case of the present embodiment, the shape of the seat plate 1 in plan view is not limited to a substantially trapezoidal shape in which the width of the seat plate gradually increases from the back plate 2 to the front end surface 101 of the seat plate. (Or a rectangular shape) or a shape in which the width of the seat plate gradually decreases from the back plate 2 may be used.
[0022]
【The invention's effect】
As described in detail above, the stackable chair according to claim 1 is a chair that includes a back plate, a seat plate, and a leg body and is vertically stackable, and includes a plurality of chairs stacked vertically. Of the chairs located on the upper side, the cushion is provided on the lower surface of the seat plate or the lower surface of the legs of the chair located on the upper side so as not to move at least to the left, right, and front with respect to the seat plate of the lower chair. It is characterized by being attached, chairs can be stacked at small intervals in the vertical direction, so that more chairs can be stacked in a narrow space, and when moving these stacked chairs, Since the chair does not move in the left-right and front-back directions, there is no danger that the chair will slip or fall even if the floor suddenly rattles during movement.
[0023]
The stackable chair according to claim 2 is the stackable chair according to claim 1, wherein the leg body is formed by a horizontal rod and a vertical rod hanging down from both left and right ends of the horizontal rod. A substantially portal-type front leg, and the horizontal bars of the rear leg substantially identical to the front leg are connected to each other with one or a plurality of connecting rods, and at least one of the front leg and the rear leg is configured. The horizontal rods are mounted so that the vertical rods at the left and right ends of the horizontal rods are located outside the front width of the seat plate, and the cushions are provided on the lower surfaces of the horizontal rods of the front leg and the rear leg at appropriate intervals. At least two or more buffers are detachably fixed, and the shock absorbers attached to the lower surface of the horizontal rod on at least one of the front leg body and the rear leg body are substantially L-shaped in side view, and are attached at appropriate intervals. Both ends of the seat plate of the chair in which the side contact surfaces of the L-shaped cushioning bodies are located on the lower side In addition to the invention described in claim 1, the stacked chairs do not move left and right and back and forth by making the shape of the buffer body L-shaped. Because of the configuration, it can be realized with a simple structure reliably and at low cost.
[0024]
Further, the stackable chair according to claim 3 is the stackable chair according to claim 1 or 2, wherein the seat plate has a width dimension from the back plate to the front end surface of the seat plate in a plan view shape. It is characterized in that it has a substantially trapezoidal shape that gradually widens, and in addition to the invention according to claim 1 or 2, the shape of the seat plate in a plan view is substantially trapezoidal, so that movement in the forward direction is prevented. Since it can be reliably prevented, the seat plate can be realized simply and inexpensively without adding a separate stop member or processing to the seat plate.
[0025]
The chair capable of stacking according to claim 4 is the chair capable of stacking according to any one of claims 1 to 3, wherein the chair is substantially on the upper surface of the seat plate from the front end surface and the left and right end surfaces of the seat plate. A seat cushion body having a shape substantially the same as that of the seat plate is detachably mounted on the inner side of the same dimension, and even if a seat cushion body is separately mounted on the upper surface of the seat plate, the chairs are stacked. There is no change in the method, and it is possible to stack a chair with the seat cushion body attached and a chair without the seat cushion body. Even if the thickness of the seat cushion body is changed (for example, double the thickness), it is possible to stack chairs by increasing the height of the cushioning body, and it is possible to cope with various chairs.
[Brief description of the drawings]
FIG. 1 is a perspective view of a first embodiment of the device of the present invention as viewed obliquely from above.
FIG. 2 is a perspective view of the first embodiment of the device of the present invention as viewed obliquely from below.
FIG. 3 is a partially omitted perspective view showing a stacked state of the first embodiment of the device of the present invention.
FIG. 4 is a side view showing a stacked state of the first embodiment of the device of the present invention.
FIG. 5 is a view taken along line AA of FIG. 4;
FIG. 6 is a bottom view of FIG. 4;
FIG. 7 is a top perspective view showing the second embodiment.
8A is a front view of a shock absorber, and FIG. 8B is a right side view of the shock absorber.
[Explanation of symbols]
A Seat body B Leg body 1 Seat plate 101 Seat plate front end surface 102 Seat plate side end surface 103 Seat plate bottom surface 104 Seat plate upper surface 2 Back plate 201 Back plate upper end surface 202 Back plate side end surface 203 Back plate surface 204 Back plate back surface 3 Front legs Body 4 Rear leg 5 Horizontal rod 6 Vertical rod 6a Cap 7 Linked body 8 Buffer body 80 Step section 801 Seat contact surface 802 Side contact surface 803 Upper contact surface 9 Buffer 10 Seat cushion body 11 Back cushion body 12 Seat plate cutout Part 12a Notch side end face of seat plate

Claims

A chair comprising a back plate, a seat plate, and a leg body and capable of being stacked vertically, wherein a chair located on an upper side among a plurality of chairs stacked vertically is attached to a seat plate of a chair located on a lower side. A stackable chair characterized in that a buffer is attached to a lower surface of a seat plate or a lower surface of a leg body of a chair located at an upper side so as not to move at least to the left, right, and front.

The leg body includes a front gate substantially in the form of a gate formed by a horizontal rod and vertical rods hanging down from both left and right ends of the horizontal rod, and the horizontal rods of a rear leg substantially identical in shape to the front leg. Or a plurality of connecting rods are connected to each other, and at least one horizontal rod of the front leg and the rear leg is attached such that vertical rods at both left and right ends of the horizontal rod are located outside the front width of the seat plate, At least two or more buffers are detachably attached to the lower surfaces of the horizontal rods of the front leg and the rear leg at appropriate intervals, and the lower surfaces of the horizontal rods of at least one of the front leg and the rear leg are provided. The cushioning member attached to the seat is substantially L-shaped when viewed from the side, and the side contact surfaces of the substantially L-shaped cushioning members attached at appropriate intervals sandwich both end surfaces of the seat plate of the chair located below. 2. The stackable chair according to claim 1, wherein the chair is in contact with the chair.

3. The stackable chair according to claim 1, wherein the seat plate has a substantially trapezoidal shape whose width dimension gradually increases from the back plate toward the front end surface of the seat plate in plan view. 4.

A seat cushion body having substantially the same shape as the seat plate in a plan view is detachably attached to the upper surface of the seat plate, substantially inward from the front end surface of the seat plate and the left and right seat plate side end surfaces by substantially the same dimension. The stackable chair according to any one of claims 1 to 3.