JP3097280U

JP3097280U - Portable sitting chair

Info

Publication number: JP3097280U
Application number: JP2003002165U
Authority: JP
Inventors: 鎗　利次; 鎗　英俊; 太田　和茂
Original assignee: 株式会社ヒック
Priority date: 2003-04-18
Filing date: 2003-04-18
Publication date: 2004-01-22
Anticipated expiration: 2009-04-18

Abstract

【課題】使用時は座り心地が良いとともに、不使用時は携帯に便利な携帯用正座椅子を提供すること。
【解決手段】本携帯用正座椅子１は、相互に嵌合する容体兼用の第１座板２０と蓋体兼用の第２座板とを備え、該第１座板２０の内側に、筒状に組める折り畳み自在の脚体１０を部分的に連結して設けて構成されている。そして、使用時は、上記第１座板２０の内側に筒状の上記脚体１０を立設した状態で、該第１座板２０の外側に上記第２座板３０を被着することにより座部５０とし、全体として座部５０と脚体１０とからなる椅子状に組立てて正座可能とし、不使用時は、上記脚体１０を折り畳んで上記第１座板２０に収容して上記第２座板３０を被着することにより、薄い箱状に形成して携帯可能にしている。
【選択図】　　　　図１An object of the present invention is to provide a portable sitting chair that is comfortable to use when in use and easy to carry when not in use.
A portable seat chair 1 includes a first seat plate 20 also serving as a body and a second seat plate serving also as a lid, which are fitted to each other, and a cylindrical shape is provided inside the first seat plate 20. The foldable leg body 10 which can be assembled to the horn is partially connected and provided. At the time of use, the second leg 30 is attached to the outside of the first leg 20 while the cylindrical leg 10 is erected inside the first leg 20. The seat 50 is assembled as a chair comprising the seat 50 and the leg 10 as a whole so that the user can sit straight. When not in use, the leg 10 is folded and housed in the first seat plate 20, and By attaching the two-seat plate 30, it is formed in a thin box shape and is portable.
[Selection diagram] Fig. 1

Description

【０００１】
【考案の属する技術分野】
本考案は、携帯用正座椅子に関するものである。
【０００２】
【従来の技術】
従来この種の携帯用正座椅子としては、下記特許文献１および２に記載されたものが知られている。
特許文献１には、プラスチック材料を用いて座部、脚部等から構成される正座椅子が開示されている。これは、組立て、分解が自由で携帯可能であるが、組立てて使用する際の脚部形状が矩形を呈しているので、使用者が座した際の足を収める位置になじまず、使用者にとって座り心地が悪く疲れ易い構造であった。また、矩形は構造上対角線方向の力に弱いので、使用中にこのような力が加わると破損する虞があった。
また、特許文献２には、材料が明記はされてないが、その構造およびその先行例との関係の記載から木材を用いたと思われる正座椅子が開示されており、その座部と脚部とがアリ溝・ホゾ相互のおよび切欠き部相互の嵌合構造からなり、組立て、分解が自由で携帯可能となっている。この正座椅子は、脚部が後方に向ってハの字状にすぼまる構造になっているので前記特許文献１に記載された正座椅子の欠点は解消され、使用者にとって座り心地が良いものである。しかしながら、このものは重量が重く、分解してコンパクトにしても携帯し易いとはいえなかった。
【０００３】
【特許文献１】
実開平５‐８０３４０号公報
【特許文献２】
実開平５‐１５８５５号公報
【０００４】
【考案が解決しようとする課題】
ところで、上記公知の携帯用正座椅子はいずれも、分解が自由であるものの、分解した際にきちんとまとめて収納されるようにはなっていないので、分解したものを紐で結わくとか、専用の収納袋ないしは収納箱に収納するとかして携帯する必要があるという問題がある。
【０００５】
本考案は上記課題を解決するためになされたものであり、使用時は座り心地が良いとともに、不使用時は携帯に便利な携帯用正座椅子を提供すること目的にしている。
【０００６】
【課題を解決するための手段】
上記課題を解決するための本考案の携帯用正座椅子は、相互に嵌合する容体兼用の第１座板と蓋体兼用の第２座板とを備え、該第１座板の内側に、筒状に組める折り畳み自在の脚体を部分的に連結し、または接離自在に連結して設け、上記第１座板の内側に筒状の上記脚体を立設した状態で、該第１座板の外側に上記第２座板を被着することにより、全体として椅子状に組立可能にするとともに、折り畳んだ上記脚体を上記第１座板に収容して上記第２座板を被着することにより、薄い箱状に形成可能にしたものである。
【０００７】
本考案の携帯用正座椅子には、上記構成に従属する好ましい種々の構成がある。それらを以下に列記する。
（１）上記第１座板、上記第２座板及び上記脚体を、硬質パルプボードにより形成したこと。
（２）上記第１座板および第２座板を矩形の容器形に形成するとともに、上記脚体を、板状脚部材を平行な折り目線によって折曲することにより三角筒状に形成可能にしたこと。
（３）上記板状脚部材の両側自由端に、それらを相互に着脱自在に接合する接合部材を設けたこと。
（４）上記第１座板と上記脚体の部分的な連結をそれらに端部を固定した可撓材によって行い、その連結部分を、三角筒状に折る上記脚体の中央片と上記第１座板の一側片との間に設けたこと。
（５）上記可撓材を設けた側と反対の側で上記第１座板と上記第２座板との対面位置に相互に着脱自在の面ファスナーを設けたこと。
（６）上記第１座板の外側に上記第２座板を被着することにより形成した座部に板材を介在したこと。
【０００８】
【考案の実施の形態】
図は本考案の携帯用正座椅子の実施例を示すもので、図１は組立てて使用状態とした正座椅子１を底部側から見た斜視図であり、図２はこれを頂部側から見た斜視図である。使用時のこの携帯用正座椅子１は、図１および図２に示すように、容体を兼ねる第１座板２０および蓋体を兼ねる第２座板３０と、その内部に立設された脚体１０とから構成されている。これらは最近この種用途に多用されている硬質パルプボードと呼ばれる軽量で高強度の材料で形成されている。硬質パルプボードは古紙を原料としたセルロース繊維に熱可塑性樹脂を配合して硬化させた硬質の繊維ボードであり、このような正座椅子に用いても十分な機械強度を発揮する。
【０００９】
図４は、脚体１０を第１座板２０に収納した状態を示しており、不使用時のこの携帯用正座椅子１の脚体１０は、折り畳んで扁平な積層体にして第１座板２０に収納するようになっている。そして、脚体１０を収納した第１座板２０に第２座板３０を嵌合して箱体４０とすれば容易に携帯可能となる。
【００１０】
ついで、本携帯用正座椅子１の具体的な構造を詳述する。
図４に示すように第１座板２０と第２座板３０とは、板材を折曲して矩形の浅い容器形に組み立ててあり、これらを相互に嵌合することにより薄厚の箱体４０となる。正座椅子１として使用する際は、図１および図２に示すようにこれら第１座板２０と第２座板３０とを、その底板２０Ａとその頂板２０Ｂとが当接するように被着する。すなわち通常の箱としての嵌合とは逆になっていて、容体を兼ねる第１座板２０の底板２０Ａと蓋体を兼ねる第２座板３０の頂板３０Ａとを正座椅子１の座部５０として機能させるようになっている。そして、図４に示すように後述する可撓材１５が取り付けられた第１座板２０の第１側片２１Ａと対向する第２側片２１Ｂの外側の略中央に、フック材２２Ａとループ材２２Ｂとで構成される面ファスナ２２の上記フック材２２Ａが取り付けられており、これと対応する第２座板３０の内側の位置に上記ループ材２２Ｂが取り付けられている。このループ材２２Ｂとフック材２２Ａとの取り付け関係は逆でもよい。
【００１１】
図１および図２に示すように、使用時の脚体１０は折曲した板状脚部材１１を組み立てて三角筒状にしたものであり、板状脚部材１１の両側自由端にそれぞれ短幅の重ね代１３Ａ，１３Ｂを設けて板状脚部材１１を互いに平行な４本の折り目線１２によって折曲し、ついで、重ね代１３Ａ，１３Ｂに隣接した２本の折り目線１２どうしを重ねることにより断面が略二等辺三角である三角筒に形成してある。この板状脚部材１１の両側自由端での接合には、着脱自在に接合できるものであればどのような接合部材を用いても良い。この三角筒を構成する中央片１６Ａとその両側の右側片１６Ｂと左側片１６Ｃとは、不使用時には折り畳んで積層体とするので、これらの各辺が支障なく折り畳めるように、幅寸法において中央片１６Ａが長く、左右側片１６Ｃ，１６Ｂがそれより多少短く形成されていることが望ましい。また、中央片１６Ａは、第１座板２０に納まる高さと幅になっているとともに、折り畳んだ際に重ね代１３Ａの自由端は、中央片１６Ａの幅よりわずかに延出するので、その分も考慮して第１座板２０に納まる寸法関係にこれらの構成体はなっている。さらに、重ね代１３Ａが外側にくる右側片１６Ｂは、その幅が左側片１６Ｃより板厚分以上長くなっており、上部が中央片１６Ａ、真中が左側片１６Ｃ、下部が右側片１６Ｂとなるように積層するのに支障がないようになっている。なお、重ね代１３Ｂを外側にして組み立てる場合は、右側片１６Ｂと左側片１６Ｃとの寸法関係は逆になる。
【００１２】
上記脚体１０の外側に位置する重ね代１３Ａの底部側端部１３Ａａの内側には、着脱自在な接合部材として面ファスナ１４の一方の構成部材であるループ材が取りつけられており、これに対面する左側片１６Ｃの所定位置には、他方の構成部材であるフック材が取りつけられている。このループ材とフック材との取り付け関係は逆でもよい。そして、これらのループ材とフック材とを接合することにより三角筒の形状を固定する。不使用時は、これらを剥離するとともに、三角筒状の上記脚体１０を折り畳んで積層体として上記第１座板２０に収納する。
【００１３】
上記第１座板２０は、図３に示すように三角筒状に組み立てられた脚体１０の頂部近傍に部分的に連結された状態で載置されている。脚体１０の中央片１６Ａの外側の頂部側端部近傍には、第１座板２０と脚体１０とを連結する可撓材１５の一端が固定されており、その他端が中央片１６Ａと対面する第１座板２０の第１側片２１Ａの内側の対応する位置に固定されている。この可撓材１５は、例えば自動車のシートベルト用の厚手の布からなっていて、固定されたその一端から他端が外方に延びて中央片１６Ａの端縁でＵ字形に折れ曲がり、第１座板２０の第１側片２１Ａの深さ分延びてその端縁と略一致した位置に達している。上記可撓材１５と第１座板２０および脚体１０の固定は、いずれも２ヶ所のリベット止めにより行われている（図４参照）。第１座板２０を三角筒状の脚体１０上に載置した状態において、これらの第１座板２０と脚体１０とは、Ｕ字形に湾曲している上記可撓材１５のマチ代を含めて中央片１６Ａが第１座板２０の第１側片２１Ａに近接して位置し、この中央片１６Ａと対向する角部が第１座板２０の第２側片２１Ｂの内側近傍に位置する寸法関係になっている。なお、この寸法関係は、該角部が第１座板２０の第２側片２１Ｂの内側に当接するものであってもよい。
【００１４】
つぎに、この携帯用正座椅子１の組み立て方法について説明する。
椅子としての使用時には、第１座板２０に積層体となって収納されている脚体１０を、その底部側端部を掴んで、可撓材１５が接合されている頂部側端部を支点として９０°以上引き起こすとともに、折り畳まれた積層体を開く。または、底部側端部の中央片１６Ａの中央を摘んで第１座板２０から引き上げるか、あるいは、第１座板２０を吊り下げるかすると、可撓材１５を中心として容体２０と脚体１０とが蛇腹状に伸びるとともに折り畳まれた脚体１０が自然に開く。そして、脚体１０が開いた状態の板状脚部材１１の重ね代１３Ａ，１３Ｂに隣接した２本の折り目線１２，１２どうしを重ねるとともに、重ね代１３Ａと左側片１６Ｃとに取りつけてある面ファスナ１４を接合し、三角筒の形状に固定したあと、この三角筒状になった脚体１０の頂部側端部に第１座板２０が載置されるようにこれらを組み立てる。つぎに、第１座板２０の底板２０Ａと第２座板３０の頂板２０Ｂとが当接するように第１座板２０上に第２座板３０を被着し、これらに取りつけてある面ファスナ２２を接合して第１座板２０と第２座板３０とがみだりに外れないように固定する。これにより、第１座板２０の底板２０Ａと第２座板３０の頂板２０Ｂとが座部５０（図２参照）として機能し、座部５０と脚体１０とからなる正座椅子１が完成する。
【００１５】
つぎに、この正座椅子１の使用方法について説明する。
脚体１０の中央片１６Ａを前面にしてこの正座椅子１に使用者が正座すると、使用者の臀部が座部５０に載り、その両足が脚体１０の両側の右側片１６Ｂと左側片１６Ｃとに沿うように後方に延ばされる。この際、これら右側片１６Ｂと左側片１６Ｃとは中央片１６Ａと対向する角部に向ってすぼまるようになっているので、両足が脚体１０に当ることはない。したがって、この正座椅子１は、使用者にとって座り心地が良く、長時間使用しても両足が脚体１０で圧迫されて痛くなることはない。また、この正座椅子１は、標準体重の人に対しては十分な機械強度を有する硬質パルプボードを用いているとともに、荷重を受ける脚体１０が三角筒状をしていて対角線がない形状なので、この種の材料においては抵抗性が劣るとされている対角線上への力が働くことがなく、十分使用に耐えることができる。試作品においては、静荷重２５０ｋｇまで耐えることができた。
【００１６】
つぎに、この正座椅子１の収納方法をについて説明する。
接合してある面ファスナ２２を剥離して第１座板２０から第２座板３０を取外す。ついで、正座椅子１を逆さにして脚体１０掴むと第１座板２０は可撓材１５で連結された状態で下方に垂れ下がる。脚体１０の面ファスナ１４を剥離してこの脚体１０を展開することにより板状脚部材１１の形にする。そして、板状脚部材１１の中央片１６Ａを上部にしてその内側に、折り込んだ状態の重ね代１３Ｂを有する左側片１６Ｃを折り畳み、ついで、開いた状態の重ね代１３Ａを有する右側片１６Ｂを左側片１６Ｃに重ねるように折り畳んで積層体とする。この積層体は中央の腹部が隙間により膨らんで断面紡錘形をしているがその腹部の高さは概ね第１座板２０の深さと一致している。そして、積層体とした板状脚部材１１を第１座板２０に収納して第２座板３０を嵌合して面ファスナ２２を接合する。これにより第２座板３０はみだりに外れることはない。なお、その腹部の高さが第１座板２０の深さより多少膨らんでいてもわずかな荷重で押さえれば容易に縮むので第１座板２０に収納されないということはない。このようにしてこの正座椅子１は、外見は硬質パルプボードからなる箱体４０となる。このように、本実施例の携帯用正座椅子１は、すべて軽量な材料からなるとともに極めてコンパクトな形状に収められるので、携帯がきわめて容易である。
【００１７】
上記正座椅子は、図３に示すように、第１座板２０と脚体１０との間に補強用の板材２３を介在させることができる。この板材２３は、第１座板２０に固定されていても良いし、単に嵌めるだけでも良い。あるいは、第１座板２０にではなく第２座板３０に固定されていても良いし、単に第１座板２０と第２座板３０との間に挟んでおくだけでも良い。この板材２３は、合板、木板、硬質パルプボード、アルミ板、プラスチック板、セラミック板等軽量かつ高強度の材料が好ましが、多少重量が増すことを許容するならば鉄板等でも良い。このようにすることにより座部５０が補強されて、同形状同材質の正座椅子であっても、さらに強度が向上する。
【００１８】
本考案の携帯用正座椅子はこれらの実施例に限定されるわけではなく、実用新案登録請求の範囲を逸脱しない範囲において種々の変更が可能である。
変更可能な構成を下記に列挙する。
１．脚体１０は、三角筒状に限らず台形筒状その他の筒体状とすることもできる。
２．本携帯用正座椅子１の材料は、硬質パルプボードに限らず、それに相当する機械強度を有するプラスチックスその他の材料を用いることもできる。
３．可撓材１５は、厚手の布に限らずゴム、皮革、軟質プラスチック等可撓性の材料を広く用いることができる。
４．可撓材１５の固定は、リベット止めに限らず接着剤、ボルト・ナット、ホッチキス等その他の固定手段を用いることもできるし、面ファスナ、ホック等その他の着脱自在な固定手段を用いることもできる。
５．板状脚部材１１の両側自由端での接合部材は、面ファスナ１４に限らずホック等その他の着脱自在な接合部材としたり、あるいは、接合対象の両部材を凹凸加工したもの、切り込みや差込穴などを設けて係合可能にした着脱自在な構造としたりすることもできる。
６．第１座板２０と第２座板３０との間の固定は、面ファスナ２２に限らずホック等その他の着脱自在な接合部材とすることができる。
【００１９】
【考案の効果】
以上に詳述した本考案の携帯用正座椅子によれば、使用時は座り心地が良いとともに、不使用時は折り畳んで箱に収納でき携帯に便利になっている。
【図面の簡単な説明】
【図１】本考案の実施例の携帯用正座椅子使用時の底部側から見た斜視図である。
【図２】本考案の実施例の携帯用正座椅子使用時の頂部側から見た斜視図である。
【図３】本考案の携帯用正座椅子の要部縦断面図である。
【図４】本考案の携帯用正座椅子の収納状態の斜視図である。
【符号の説明】
１　　　　携帯用正座椅子
１０　　　脚体
１１　　　板状脚部材
１３Ａ，１３Ｂ　　重ね代（自由端）
１４、２２　　面ファスナー（接合部材）
１５　　　可撓材
１６Ａ　　中央片
２０　　　第１座板
２３　　　板材
３０　　　第２座板
５０　　　座部[0001]
[Technical field to which the invention belongs]
The present invention relates to a portable sitting chair.
[0002]
[Prior art]
Conventionally, as this kind of portable sitting chair, the ones described in Patent Documents 1 and 2 below are known.
Patent Literature 1 discloses a seat chair composed of a seat, a leg, and the like using a plastic material. This is free to assemble and disassemble, and is portable.However, since the legs have a rectangular shape when assembled and used, they do not fit into the position where the user can sit when the user sits down. The structure was uncomfortable and tired easily. Further, since the rectangle is structurally weak to a diagonal force, there is a possibility that the rectangle may be damaged if such a force is applied during use.
Patent Literature 2 discloses a straight seat chair which is thought to be made of wood from the description of its structure and its relation to the preceding example, although the material is not specified, and its seat, legs and Has a structure in which the dovetail groove and tenon and the notch part are fitted to each other, so that assembly and disassembly are free and portable. This seat chair has a structure in which the legs are tapered in the shape of a letter C toward the rear, so that the drawbacks of the seat chair described in Patent Document 1 described above are eliminated, and the seat is comfortable for the user. It is. However, this one is heavy and cannot be said to be easy to carry even if it is disassembled and compact.
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 5-80340 [Patent Document 2]
Published Japanese Utility Model Application No. Hei 5-15855
[Problems to be solved by the invention]
By the way, all of the above-mentioned known portable seat chairs can be freely disassembled, but are not properly stored together when disassembled, so that the disassembled thing can be tied with a string or a dedicated There is a problem that it is necessary to carry it in a storage bag or a storage box.
[0005]
The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a portable sitting chair that is comfortable to use when used and is easy to carry when not in use.
[0006]
[Means for Solving the Problems]
A portable sitting chair according to the present invention for solving the above problems includes a first seat plate also serving as a body and a second seat plate also serving as a lid, which are fitted to each other, and inside the first seat plate, The foldable legs that can be assembled into a cylindrical shape are partially connected or provided so as to be freely connected to and separated from each other, and the first leg is installed inside the first seat plate in a state where the first leg is erected. By attaching the second seat plate to the outside of the seat plate, it is possible to assemble the chair as a whole, and the folded legs are accommodated in the first seat plate to cover the second seat plate. By being attached, it can be formed in a thin box shape.
[0007]
The portable seat chair of the present invention has various preferable configurations depending on the above configuration. They are listed below.
(1) The first seat plate, the second seat plate, and the legs are formed of a hard pulp board.
(2) The first seat plate and the second seat plate are formed in a rectangular container shape, and the leg body can be formed in a triangular cylindrical shape by bending a plate-shaped leg member along a parallel fold line. That you did.
(3) At the free ends on both sides of the plate-like leg members, connecting members for detachably connecting them to each other are provided.
(4) The first seat plate and the leg are partially connected to each other by a flexible material having ends fixed thereto, and the connected portion is folded into a triangular cylindrical shape with the center piece of the leg and the second leg. Being provided between one side plate and one seat plate.
(5) A mutually detachable surface fastener is provided at a position facing the first seat plate and the second seat plate on a side opposite to a side on which the flexible material is provided.
(6) A plate member is interposed in a seat formed by attaching the second seat plate to the outside of the first seat plate.
[0008]
[Embodiment of the invention]
FIG. 1 shows an embodiment of the portable seat chair of the present invention. FIG. 1 is a perspective view of the seat chair 1 in an assembled and used state as viewed from the bottom side, and FIG. 2 is a view of the seat chair 1 from the top side. It is a perspective view. As shown in FIGS. 1 and 2, the portable sitting chair 1 in use has a first seat plate 20 also serving as a container, a second seat plate 30 serving also as a lid, and legs standing inside the seat. And 10. These are made of a lightweight and high-strength material called hard pulp board which has been frequently used for this kind of application recently. The hard pulp board is a hard fiber board obtained by blending a thermoplastic resin with cellulose fibers made of waste paper as a raw material and hardening, and exhibits sufficient mechanical strength even when used in such a sitting chair.
[0009]
FIG. 4 shows a state in which the leg 10 is stored in the first seat plate 20. When not in use, the leg 10 of the portable sitting chair 1 is folded into a flat laminated body to form the first seat plate. 20. Then, if the second seat plate 30 is fitted to the first seat plate 20 accommodating the leg body 10 to form the box body 40, the portable body can be easily carried.
[0010]
Next, the specific structure of the portable sitting chair 1 will be described in detail.
As shown in FIG. 4, the first seat plate 20 and the second seat plate 30 are assembled into a rectangular shallow container shape by bending a plate material, and these are fitted together to form a thin box body 40. It becomes. When used as the sitting chair 1, as shown in FIGS. 1 and 2, the first seat plate 20 and the second seat plate 30 are attached so that the bottom plate 20A and the top plate 20B thereof are in contact with each other. That is, the bottom plate 20A of the first seat plate 20 also serving as a container and the top plate 30A of the second seat plate 30 serving as a lid are reversed as the fitting as a normal box as the seat portion 50 of the seating chair 1. It works. As shown in FIG. 4, a hook member 22A and a loop member 22 are provided substantially at the center of the outside of the second side piece 21B facing the first side piece 21A of the first seat plate 20 to which the flexible material 15 described later is attached. The hook member 22A of the hook-and-loop fastener 22 composed of the hook member 22B and the loop member 22B is attached to a position inside the second seat plate 30 corresponding to the hook member 22A. The mounting relationship between the loop member 22B and the hook member 22A may be reversed.
[0011]
As shown in FIGS. 1 and 2, the leg 10 at the time of use is formed by assembling a bent plate-like leg member 11 into a triangular cylindrical shape. By providing the overlapping margins 13A and 13B, the plate-shaped leg member 11 is bent by four parallel folding lines 12, and then the two folding lines 12 adjacent to the overlapping margins 13A and 13B are overlapped. It is formed in a triangular cylinder whose cross section is a substantially isosceles triangle. For joining at the free ends on both sides of the plate-like leg member 11, any joining member may be used as long as it can be detachably joined. The central piece 16A and the right and left pieces 16B and 16C on both sides of the triangular cylinder are folded to form a laminate when not in use. It is desirable that 16A be long and the left and right side pieces 16C and 16B be formed slightly shorter. Also, the central piece 16A has a height and width that can be accommodated in the first seat plate 20, and the free end of the overlap allowance 13A when folded is slightly extended from the width of the central piece 16A. In consideration of this, these components have a dimensional relationship that fits in the first seat plate 20. Further, the width of the right side piece 16B where the overlapping margin 13A is located outside is longer than the left side piece 16C by the thickness of the plate, and the upper part becomes the center piece 16A, the middle part becomes the left side piece 16C, and the lower part becomes the right side piece 16B. So that there is no problem in laminating them. When assembling with the overlapping margin 13B outside, the dimensional relationship between the right piece 16B and the left piece 16C is reversed.
[0012]
A loop member, which is one of the components of the hook-and-loop fastener 14, is attached as a detachable joining member to the inside of the bottom side end portion 13Aa of the overlap allowance 13A located outside the leg body 10, and is opposed to the loop member. A hook member, which is the other component, is attached to a predetermined position of the left piece 16C. The mounting relationship between the loop material and the hook material may be reversed. Then, the shape of the triangular cylinder is fixed by joining the loop material and the hook material. When not in use, these are peeled off, and the triangular cylindrical leg 10 is folded and stored in the first seat plate 20 as a laminate.
[0013]
As shown in FIG. 3, the first seat plate 20 is placed in a partially connected state near the top of the leg 10 assembled in a triangular cylindrical shape. One end of a flexible material 15 for connecting the first seat plate 20 and the leg 10 is fixed near the top end on the outer side of the center piece 16A of the leg 10, and the other end is connected to the center piece 16A. It is fixed to a corresponding position inside the first side piece 21A of the facing first seat plate 20. The flexible member 15 is made of, for example, a thick cloth for a seat belt of an automobile, and has a fixed end extending outward from one end and bent in a U-shape at the edge of the central piece 16A. The first side piece 21A of the seat plate 20 extends by the depth of the first side piece 21A and reaches a position substantially coincident with the edge thereof. The fixing of the flexible member 15, the first seat plate 20, and the leg 10 is performed by riveting at two places (see FIG. 4). In a state where the first seat plate 20 is placed on the triangular cylindrical leg 10, the first seat plate 20 and the leg 10 form a gusset of the flexible material 15 curved in a U-shape. And the center piece 16A is located near the first side piece 21A of the first seat plate 20, and the corner facing the center piece 16A is near the inside of the second side piece 21B of the first seat plate 20. It is a dimensional relationship that is located. In this dimensional relationship, the corner may abut on the inside of the second side piece 21B of the first seat plate 20.
[0014]
Next, a method of assembling the portable sitting chair 1 will be described.
At the time of use as a chair, the leg 10 housed as a laminated body on the first seat plate 20 is gripped at the bottom end, and the top end to which the flexible material 15 is joined is supported as a fulcrum. As a result, the folded laminate is opened at 90 ° or more. Alternatively, when the center of the central piece 16A at the bottom side end is picked up and pulled up from the first seat plate 20, or the first seat plate 20 is suspended, the container 20 and the leg 10 around the flexible material 15 are centered. The legs 10 extend in a bellows shape, and the folded legs 10 open naturally. Then, the two fold lines 12, 12 adjacent to the overlap margins 13A, 13B of the plate-like leg member 11 with the leg body 10 opened are overlapped with each other, and the surface attached to the overlap margin 13A and the left piece 16C. After joining the fasteners 14 and fixing them in the shape of a triangular tube, the triangular tube-shaped legs 10 are assembled so that the first seat plate 20 is placed on the top-side end. Next, the second seat plate 30 is attached on the first seat plate 20 so that the bottom plate 20A of the first seat plate 20 and the top plate 20B of the second seat plate 30 are in contact with each other, and the hook-and-loop fastener attached to these is attached. The first seat plate 20 and the second seat plate 30 are fixed so that the first seat plate 20 and the second seat plate 30 do not come off unnecessarily. As a result, the bottom plate 20A of the first seat plate 20 and the top plate 20B of the second seat plate 30 function as the seat portion 50 (see FIG. 2), and the seating chair 1 including the seat portion 50 and the legs 10 is completed. .
[0015]
Next, a method of using the sitting chair 1 will be described.
When the user sits straight on the sitting chair 1 with the central piece 16A of the leg 10 facing the front, the buttocks of the user rest on the seat 50, and both feet have the right piece 16B and the left piece 16C on both sides of the leg 10. It is extended backward so as to follow. At this time, since the right piece 16B and the left piece 16C are tapered toward the corner facing the center piece 16A, both feet do not hit the leg 10. Therefore, the sitting chair 1 is comfortable for the user to sit on, and even if used for a long time, the feet are not pressed by the legs 10 and the pain is not hurt. In addition, this seat chair 1 uses a hard pulp board having sufficient mechanical strength for a person of standard weight, and the leg 10 receiving the load has a triangular cylindrical shape and has no diagonal line. In this kind of material, a diagonal force, which is considered to be inferior in resistance, does not act, so that it can be sufficiently used. The prototype was able to withstand a static load of up to 250 kg.
[0016]
Next, a method of storing the sitting chair 1 will be described.
The bonded surface fastener 22 is peeled off, and the second seat plate 30 is removed from the first seat plate 20. Next, when the sitting chair 1 is turned upside down and the leg 10 is gripped, the first seat plate 20 hangs downward while being connected by the flexible material 15. The hook-and-loop fastener 14 of the leg 10 is peeled off, and the leg 10 is developed to form the plate-like leg member 11. The left piece 16C having the folded margin 13B is folded inside the central piece 16A of the plate-like leg member 11 with the folded top 13B, and the right piece 16B having the folded margin 13A is then folded to the left. The sheet is folded so as to overlap the piece 16C to form a laminate. In this laminated body, the central abdomen is bulged by a gap and has a spindle-shaped cross section, but the height of the abdomen is substantially equal to the depth of the first seat plate 20. Then, the plate-shaped leg member 11 formed as a laminate is housed in the first seat plate 20, the second seat plate 30 is fitted, and the hook-and-loop fastener 22 is joined. Thereby, the second seat plate 30 does not come off unnecessarily. Even if the height of the abdomen is slightly larger than the depth of the first seat plate 20, it is easily contracted if pressed with a small load, so that it is not stored in the first seat plate 20. In this manner, the sitting chair 1 looks like a box 40 made of a hard pulp board. As described above, the portable sitting chair 1 of the present embodiment is made of a lightweight material and is housed in an extremely compact shape, so that it is very easy to carry.
[0017]
As shown in FIG. 3, the sitting chair can have a reinforcing plate member 23 interposed between the first seat plate 20 and the leg 10. The plate member 23 may be fixed to the first seat plate 20 or may be simply fitted. Alternatively, it may be fixed not to the first seat plate 20 but to the second seat plate 30, or may simply be sandwiched between the first seat plate 20 and the second seat plate 30. The plate member 23 is preferably a lightweight and high-strength material such as a plywood, a wooden plate, a hard pulp board, an aluminum plate, a plastic plate, and a ceramic plate, but may be an iron plate if the weight can be increased somewhat. By doing so, the seat portion 50 is reinforced, and the strength is further improved even in the case of a straight seat chair of the same shape and the same material.
[0018]
The portable seat chair of the present invention is not limited to these embodiments, and various changes can be made without departing from the scope of the claims for utility model registration.
The configurations that can be changed are listed below.
1. The leg 10 is not limited to a triangular cylindrical shape, but may be a trapezoidal cylindrical shape or another cylindrical shape.
2. The material of the portable sitting chair 1 is not limited to the hard pulp board, but plastics or other materials having mechanical strength corresponding thereto can also be used.
3. The flexible material 15 is not limited to a thick cloth, and a wide variety of flexible materials such as rubber, leather, and soft plastic can be used.
4. The fixing of the flexible material 15 is not limited to riveting, and other fixing means such as an adhesive, a bolt and a nut, a stapler, and other detachable fixing means such as a hook-and-loop fastener and a hook can also be used. .
5. The joining members at the free ends on both sides of the plate-like leg member 11 are not limited to the hook-and-loop fasteners 14 and may be other detachable joining members such as hooks, or those obtained by processing both members to be joined, by cutting or inserting. It is also possible to provide a detachable structure in which a hole or the like is provided to enable engagement.
6. The fixing between the first seat plate 20 and the second seat plate 30 is not limited to the hook-and-loop fastener 22, but may be a hook or other detachable joining member.
[0019]
[Effect of the invention]
According to the portable seating chair of the present invention described in detail above, the seating comfort is good when used, and the portable seating chair can be folded and stored in a box when not in use, which is convenient for carrying.
[Brief description of the drawings]
FIG. 1 is a perspective view of a portable sitting chair according to an embodiment of the present invention, as viewed from the bottom side when using a portable sitting chair.
FIG. 2 is a top perspective view of the portable sitting chair according to the embodiment of the present invention when used.
FIG. 3 is a vertical sectional view of a main part of the portable seat chair of the present invention.
FIG. 4 is a perspective view of the portable sitting chair according to the present invention in a stored state.
[Explanation of symbols]
1 portable sitting chair 10 leg 11 plate leg members 13A, 13B overlap margin (free end)
14,22 surface fastener (joining member)
15 Flexible material 16A Central piece 20 First seat plate 23 Plate material 30 Second seat plate 50 Seat

Claims

A first seat plate also serving as a container and a second seat plate also serving as a lid, which are fitted to each other, and a foldable leg that can be assembled into a cylindrical shape is partially connected to the inside of the first seat plate; Alternatively, it is provided so as to be freely connected and separated,
By attaching the second seat plate to the outside of the first seat plate in a state where the cylindrical leg is erected inside the first seat plate, it is possible to assemble the whole as a chair. By accommodating the folded legs in the first seat plate and attaching the second seat plate, the legs can be formed in a thin box shape.
A portable sitting chair characterized by the following.

The first seat plate, the second seat plate and the legs are formed of a hard pulp board,
The portable sitting chair according to claim 1, wherein:

The first seat plate and the second seat plate are formed in a rectangular container shape,
The leg body can be formed in a triangular cylindrical shape by bending a plate-like leg member by parallel fold lines,
The portable seat chair according to claim 1 or 2, wherein:

At the free ends on both sides of the plate-like leg member, provided a joining member for detachably joining them to each other,
The portable sitting chair according to claim 3, characterized in that:

The first seat plate and the leg are partially connected to each other by a flexible material whose ends are fixed thereto, and the connection portion is folded into a triangular cylindrical shape with the center piece of the leg and the first seat plate. Provided between one side piece,
The portable sitting chair according to any one of claims 1 to 4, characterized in that:

On the side opposite to the side on which the flexible material is provided, a mutually detachable surface fastener is provided at a position facing the first seat plate and the second seat plate,
The portable sitting chair according to any one of claims 1 to 5, characterized in that:

A plate material is interposed in a seat formed by attaching the second seat plate to the outside of the first seat plate,
The portable sitting chair according to any one of claims 1 to 6, wherein