JP2005021199A - Knockdown chair - Google Patents

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JP2005021199A
JP2005021199A JP2003187149A JP2003187149A JP2005021199A JP 2005021199 A JP2005021199 A JP 2005021199A JP 2003187149 A JP2003187149 A JP 2003187149A JP 2003187149 A JP2003187149 A JP 2003187149A JP 2005021199 A JP2005021199 A JP 2005021199A
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fold
forming portion
forming
seat
armrest
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Japanese (ja)
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Ai Kato
愛 加藤
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Individual
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/005—Chairs of special materials of paper, cardboard or similar pliable material

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  • Chairs Characterized By Structure (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To easily assemble the whole of seat part, backrest formation part, armrests, leg parts and the like of a chair from a single paperboard such as a corrugated board. <P>SOLUTION: This chair is provided with the rectangular seat part formation part 1, a front face leg part 4, the backrest formation part 5, a back face formation part 7, and armrest formation parts 12, sleeve part formation parts 13, hold formation parts 22, and side formation parts 14 on the both sides. This chair is further provided with first folds 15 capable of folding up into mountain folds on the armrest formation parts and the sleeve part formation parts using the front ends of folds 9, second folds 16 using the rear ends of the folds 9 as the base, third folds foldable into valley folds dividing angle formed between the first folds 15 and 11, and forth folds 20 having approximately same angle with the angle formed between the folds 9 and the first folds 15. This chair is so formed as to assemble the armrest parts, fold the sleeve formation parts in the back face of the backrest formation part, hold the seat part by the hold formation parts and assemble the leg parts into an X shape. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
この発明は、１枚のダンボール紙等板紙で座部形成部、背もたれ形成部、肘掛け部、袖部、脚部等を組み立てできる組み立て椅子に関するものである。
【０００２】
【従来の技術】
従来の折り畳み式椅子として、折り曲げ可能な弾性薄板材で形成され、平面方形の筒状体で、角線の中間部から隣り合う角線の上端を結ぶ折り曲げ用斜線とで区切られ、かつ対向する側壁内に位置する一対の三角形状の側壁部分を、内側に折り曲げて吊り下げ部とし、前記角線および折り曲げ用斜線の交点を結ぶ折り曲げよう水平線と、これの両端に位置する角線とで区切られた方形の側壁部分を、内側に折り曲げて座面としたものがあります。（例えば、特許文献１参照。）
また、ダンボール製腰掛けとして、前後面壁と左右側壁を有する折り畳み可能な四角箱形を基本とする本体を組み立て、その前面壁の上端部を座部として後面壁に至るまで内側へ折り込みうるように、前面壁の上端部近くにその折れ線を形成するとともに、左右側壁の上端部に前面壁の前記折れ線の端から後面壁の上端に至る斜めの反転線を形成し、本体に座部の支持部材を同時に折り畳み可能に内装したものがあります。（特許文献２参照。）
【０００３】
【特許文献１】
実開平７−３９６０２号公報（図７）
【特許文献２】
特開平５−１５４０２４号公報（図１）
【０００４】
【発明が解決しようとする課題】
上記特許文献１の折り畳み式椅子では、座部、背もたれ、肘掛け、脚部がありますが、背もたれ部を補強するものがないので座部、背もたれ等が弱く、また座部の中間を脚部で支えていないので、ダンボール製では座部が弱く、また、上記特許文献２の腰掛けは、座部、背もたれ、肘掛け、脚部が有りますが、背もたれを背面より支えるものがないので、座部、背もたれが弱く、また、座部は本体とは別に設けた四角筒型の支持部材で支持するもので、複数の組み立て部材の組み合わせでできるものです。従来、１枚のダンボール紙で座部、背もたれ、肘掛け、脚部、背もたれの補強部、座部の支持脚などを全部組み立てできるようにしたものはなく、上記のように椅子の部分と座部を別部材として組み合わせて組み立てるものしかなかった。
【０００５】
この発明者は、１枚のダンボール紙等板紙でもって、座部、背もたれ、肘掛け部、脚部等に独特の折り目を工夫し、折り目で折り曲げて座部形成部、背もたれ形成部、肘掛け形成部、袖部形成部、背面部形成部、前後の脚部などを全部組み立てできるようにした組み立て椅子を考案しました。
この発明は、１枚のダンボール紙等板紙でもって、座部形成部、背もたれ形成部、肘掛け形成部、袖部、脚部等を簡単かつ堅牢に組み立て可能とした組み立て椅子を提供することを目的とする。
この発明は、背もたれ形成部の背面に肘掛け形成部に連続した袖部形成部を折り曲げて丈夫な組み立て椅子を提供することを目的とする。
この発明は、肘掛けに連続する抱え込み形成部を座部形成部の底面に折り込んで抱えることができ、また、脚部をＸ型に組み立て座部形成部を支えて安定して座ることができる組み立て椅子を提供することを目的とする。
【０００６】
【課題を解決するための手段】
この発明の請求項１の組み立て椅子は、板紙製組み立て椅子であって、該板紙製組み立て椅子は、方形状座部形成部と、該座部形成部の後端に折り目を介して設けられた背もたれ形成部と、該背もたれ形成部の頂部に折り目を介して設けられた背面部形成部と、前記座部形成部の両側部に折り目を介して設けられた肘掛け形成部および該肘掛け形成部と連続するとともに、前記背もたれ形成部の両側部に折り目を介して設けられた袖部形成部とを備え、
該それぞれの肘掛け形成部およびそれぞれの袖部形成部は、前記座部形成部との折り目の前端を基点として前記袖部形成部の後部側端まで斜めに延びる山折り可能な第１折り目１５と、前記座部形成部と前記肘掛け形成部との折り目の後端を基点として該折り目に対して９０度ないし９０度より所定角度大きい角度にて肘掛け形成部の後部側端に延びるとともに前記第１の折り目と交差し交差部において屈曲し肘掛け形成部の後部側端に到達する第２の折り目１６と、該第２の折り目と同じ点を基点として前記袖部形成部の後端まで延びる谷折り可能な第３折り目１７とを備えるとともに、前記第３の折り目は、前記背もたれ形成部と前記袖部形成部との折り目と該第３の折り目と基点を同じとする第２の折り目とが形成する角度を２分するものであり、前記第１の折り目は、屈曲する前記第２の折り目を屈曲点において２分するものであり、
前記肘掛け形成部と袖部形成部とを第１折り目で山折りし、第３折り目で谷折りして肘掛け部を構成するとともに袖部を第２折り目で背もたれの背面に折り込み、背もたれ形成部に対して背面部形成部を折り返して袖部を抑えることにより組み立て可能であることを特徴とする。
【０００７】
この発明の請求項２の組み立て椅子は、請求項１において、座部形成部の前端に折り目を介して設けられた前面脚部を構成する前面形成部と、該前面形成部の両側部に折り目を介して設けられた側面形成部と、座部形成部の両側部に折り目を介して設けられた肘掛け形成部と連続する抱え込み形成部とを備え、
それぞれの肘掛け形成部に連続する抱え込み形成部は、前記座部形成部との折り目の先端を基点として抱え込み形成部の側端まで斜めに延びる第４折り目２０と前記側面形成部の折り目２１との間に形成し、
第４折り目は第１折り目と基点を同じとし、第４折り目と第１折り目とが形成する角度は座部形成部の折り目と第１折り目とのなす角と等しい角度であり、
該抱え込み形成部を第４折り目で折り曲げて座部形成部の底部を抱え込み可能であることを特徴とする。
【０００８】
この発明の請求項３の組み立て椅子は、板紙製組み立て椅子であって、該板紙製組み立て椅子は、方形状座部形成部と、該座部形成部の後端に折り目を介して設けられた背もたれ形成部と、該背もたれ形成部の頂部に折り目を介して設けられた背面部形成部と、前記座部形成の両側部に折り目を介して設けられた肘掛け形成部および該肘掛け形成部と連続するとともに、前記背もたれ形成部の両側部に折り目を介して設けられた袖部形成部とを備え、
該座部形成部の前端に折り目を介して設けられた前面脚部を構成する前面形成部と、該前面形成部の両側部に折り目を介して設けられ、かつ端面に係合部を有する側面形成部と、座部形成部両側部に折り目を介して設けられた肘掛け形成部と連続するとともに該側面形成部に折り目を介して設けられた抱え込み形成部とを備え、
前記それぞれの肘掛け形成部およびそれぞれの袖部形成部は、前記座部形成部との折り目の前端を基点として前記袖部形成部の後部側端まで斜めに延びる山折り可能な第１折り目１５と、前記座部形成部と前記肘掛け形成部との折り目の後端を基点として該折り目に対して９０度ないし９０度より所定角度大きい角度にて肘掛け形成部の後部側端に延びるとともに前記第１の折り目と交差し交差部において屈曲し肘掛け形成部の後部側端に到達する第２の折り目１６と、該第２の折り目と同じ点を基点として前記袖部形成部の後端まで延びる谷折り可能な第３折り目１７とを備えるとともに、前記第３の折り目は、前記背もたれ形成部と前記袖部形成部との折り目と該第３の折り目と基点を同じとする第２の折り目とが形成する角度を２分するものであり、前記第１の折り目は、屈曲する前記第２の折り目を屈曲点において２分するものであり、
前記それぞれの肘掛け形成部に連続する抱え込み形成部は、前記座部形成部との折り目の先端を基点として肘掛け形成部の側端まで斜めに延びる第４折り目２０と前面脚部の側面形成部との折り目２１との間に形成し、
第４折り目は第１折り目と基点を同じとし、第４折り目と第１折り目とが形成する角度は座部形成部の折り目と第１折り目とのなす角と等しい角度であり、
前記背面部形成部の両側に折り目を介して設けられた背面側部形成部と、該背面側部形成部の上部に折り目を介して設けられた前記袖部形成部を抑える抑え形成部と、該背面側部形成部の下部に折り目を介して設けられる箱状に組み立てる後面脚部とを備え、該後面脚部は端面に前記前面脚部の側面形成部の係合部と係合可能な係合部を有する外側形成部と、該外側形成部に折り目を介して設けられた上側形成部と下側形成部と、該下側形成部に折り目を介して設けられ、かつ端面に前記内側形成部の係合部と係合可能な係合部を有する内側形成部とからなり、前記背面形成部の下端には折り目を介して設けられた前記前面脚部と後面脚部の底部に被せる底部形成部を備えたことを特徴とする。
【０００９】
この発明の組み立て椅子の構成によれば、ダンボール紙、厚紙等板紙で前記肘掛け形成部と袖部形成部との第１折り目で山折りし、第３折り目を谷折りして重合して肘掛け部と袖部形成部を組み立て、この袖部形成部を第２折り目で背もたれ形成部の背面に折り込み、背面部形成部で該袖部形成部を抑えて組み立てることができる。座部形成部の両側に肘掛け部を簡単に組み立てできるとともに袖部形成部を背もたれ形成部の背面に折り曲げて当て背面部形成部で抑えるので、肘掛け形成部と背もたれ形成部を丈夫にできる。この組み立て椅子は１枚の板紙或いは複数枚を接着して１枚とした板紙で形成することができるので、運搬、保管、陳列等に便利である。
【００１０】
この発明の組み立て椅子の構成によれば、肘掛け形成部との第４折り目と、側面形成部との折り目で形成される抱え込み形成部を座部形成部の下面に折り込み、座部形成部を抱え込んで肘掛け部、座部形成部を丈夫に組み立てできる。
【００１１】
この発明の組み立て椅子の構成によれば、前記のほかに、座部形成部の下面で前面脚部と後面脚部をＸ型に組み合わせて座部形成部を支持できるので、椅子を堅牢に組み立てでき、背もたれ形成部の背面に袖部形成部を折り込んで背面部形成部の抑え形成部を背もたれ形成部に被せて補強することができ、前記背面部形成部に設ける後面脚部は、箱形に折り曲げて組み立てて脚部を堅牢とし、座部形成部を安定して保持でき、さらに、前記座部形成部の前端の前面脚部、および前記背面部形成部に設ける後面脚部には相互に係脱しうる係合部を設けて前後の脚部、後部の脚部同士を係合して箱形に組み立てでき、座った時安定する。さらに、前面脚部と後面脚部の底面を覆うことができる底部形成部を設けたので、前後の脚部を確実に結合でき、組み立て椅子を丈夫とすることができる。
【００１２】
【発明の実施の形態】
図に基づきこの発明の実施形態について詳細に説明する。図１はこの発明の組み立て椅子の展開図、図２は椅子前部の拡大展開図、図３は椅子後部の拡大展開図、図４は別の実施例の組み立て椅子を構成する前後部を分離した展開図、図５は同組み立て椅子の前後部を結合した展開図、図６は椅子の前部と後部を組み立てる状態の斜視図、図７は椅子の前部と後部を組み立てる状態の斜視図、図８は椅子の座部形成部、前面脚部、背もたれ形成部、袖部形成部の背面側拡大斜視図、図９は椅子の背面部形成部、後面脚部の背面側拡大斜視図、図１０は組み立てた状態の組み立て椅子の斜視図、図１１は組み立て椅子の平面図、図１２は同側面図、図１３は底部形成部を除いて示す椅子の底面図、図１４は脚部を底部形成部で覆った椅子の底面図である。
【００１３】
図１および図２において、ダンボール紙、厚紙等板紙Ａでもって、座部形成部１と、その前後端に折り目２、３を介して前面脚部４を構成する前面形成部４ａと背もたれ形成部５と、該背もたれ形成部５の頂部に折り目６を介して背もたれ形成部の背面を覆いかつ後面脚部８を構成する背面部形成部７と、前記座部形成部１と背もたれ形成部５および前面脚部４の前面形成部４ａの両側には折り目９、１１、１０を介して肘掛け形成部１２と袖部形成部１３、抱え込み形成部２２および側面形成部１４が設けられ、かつ肘掛け形成部１２、袖部形成部１３、抱え込み形成部２２および側面形成部１４が連続して一体に設けられている。前記背面部形成部７の先端には折り目６１を介して底部形成部６０が設けられている。背もたれ形成部５は、座部形成部１の折り目３から頂部の折り目６までほぼ正方形とし、背面形成部７は、頂部の折り目７から底部形成部６０の折り目６１までほぼ長方形とし、その上部両側に抑え部、その両側に後面脚部を備える。
板紙Ａとしては、１枚の板紙或いは複数枚を接着して１枚とした板紙を使用する。図１ないし図３に示す実施形態では、組み立て椅子の前記座部形成部、背もたれ形成部、背面部形成部、袖部形成部、肘掛け形成部、抱え込み形成部、前面脚部の前面形成部と側面形成部等を一枚のダンボール紙を用いてカッター等裁断機で作成した場合を示す。図４および図５に示す実施形態は、２枚のダンボール紙を用い、背もたれ形成部５と背面部形成部７とを頂部で継ぎ合わせるように別々に設けた椅子前部Ａ１と後部Ａ２を示す。カッター等で大きなダンボール紙を一度に裁断出来ない場合には、例えば、前記背もたれ形成部（前部）と背面部形成部（後部）の上部で分離して別々に裁断して作成し、背もたれ形成部側の継ぎ合わせ部２３ａと背面部形成部側の継ぎ合わせ部２３ｂを接着剤等で接着して一枚にしてもよい。ダンボール紙等板紙とするので、着色、印刷等ができ、布を張ることもできる。座部形成部、背もたれ形成部等に人気のキャラクター等絵柄の印刷を施せば商品価値を向上できる。
【００１４】
前記座部形成部１、前面脚部４の前面形成部４ａ、背もたれ形成部５はほぼ長方形とし、その両側の肘掛け形成部１２と、袖部形成部１３、抱え込み形成部２２と側面形成部１４を一体のほぼ方形状とし、かつ背面部形成部７は前面脚部４と背もたれ形成部５とを合わせた長さとほぼ同じ縦長の方形に設けられ、その背面部形成部７には両側に背面側部形成部、抑え形成部、後面脚部８等が一体に設けられている。方形状の座部形成部１は後部を若干幅狭くして、座部形成部の前面を広げて座り易い形状としてあるが、これに限られものではなく、例えば、前部と後部の幅をほぼ同じとしても良い。背もたれ形成部はほぼ正方形としてある。座部形成部と同じ方形の補強用板紙を別途設け、これを座部形成部の裏面に貼着して座部形成部を補強して座ったときに座面に凹みを生じないようにすることもできる。また、背もたれ形成部５は、折り目３を折り座部形成部に対して９０度ないし９０度より所定角度大きい角度に折り曲げられる。座部形成部１に対する背もたれ形成部の折り曲げ角度αは、椅子として座り心地を考慮して、背もたれ形成部を後方へ若干傾斜した状態に折り曲げた角度とするのが好ましい。実施形態ではαを９０度より所定角度大きい角度としてある。座部形成部１に対して前面脚部４を構成する前面形成部４ａは折り目２で下方に折り曲げられる。座部形成部１に対する前面形成部４ａの折り曲げ角度βは、ほぼ９０度として、座部形成部１を水平或いは前部を奥より若干高くして傾斜状として、前面脚部は床面に垂直に立てるように折り曲げる。座部形成部のほか、脚部、背もたれ形成部等補強が必要な面の内面に同じ大きさの補強用板紙を貼着して補強することができる。
【００１５】
図１ないし図５において、前記肘掛け形成部１２および袖部形成部１３は、前記座部形成部１との折り目９の前端（座部形成部１の折り目２と９の交点）Ｅを基点として前記袖部形成部１３の後部側端まで斜めに延びる山折り可能な第１折り目１５と、前記座部形成部１と前記肘掛け形成部１２との折り目９の後端（座部形成部１の折り目３と背もたれ形成部と袖部形成部との折り目１１の交点）Ｆを基点として該折り目９に対して９０度ないし９０度より所定角度大きい角度にて肘掛け形成部の後部側端に延びるとともに前記第１の折り目と交差し交差部において屈曲し肘掛け形成部の後部側端に到達する第２の折り目１６と、該第２の折り目１６と同じ点を基点として前記袖部形成部の後端まで延びる谷折り可能な第３折り目１７とを備えるとともに、前記第３の折り目１７は、前記背もたれ形成部と前記袖部形成部との折り目１１と該第３の折り目１７と基点を同じとする第２の折り目１６とが形成する角度を２分するものであり、前記第１の折り目１５は、屈曲する前記第２の折り目１６を屈曲点において２分するものである。
座部形成部の両側の肘掛け形成部１２と袖部形成部１３を第１折り目１５で山折りして肘掛け部Ｂが構成され、第１折り目１５で山折りすると共に第３折り目１７で谷折りした袖部形成部を第２折り目１６で折り曲げて形成される背もたれ形成部の背面に折り込む袖部Ｃとを組み立て、背もたれ形成部に対して背面部形成部７を折返してその袖部Ｃが抑えられて背もたれ形成部５が補強される。
【００１６】
図２に示すように、第１折り目１５は、前記肘掛け形成部１２に折り目９の前端Ｅを基点とし角度（∠ＦＥＧ）θで、第２折り目１６との交点Ｇとを結び、袖部形成部１３の後部側端の切欠部１８の交点Ｊまで傾斜状に延びて設けられる。肘掛け部の後端（ＦＧ＝ＧＩ）の高さ（肘掛け形成部を座部形成部に対して上方に折り曲げた時の座部形成部からの高さ）Ｈは任意の高さとする。実施例では、肘掛け形成部１２の後端の高さＨは、背もたれ形成部５の高さより低く、中央部より高く設けられている。この高さＨはこれに限られるものでなく、例えば背もたれ形成部の高さとほぼ同じ高さ、或いは背もたれ形成部の高さの中央部より低い高さとすることもできる。
また、袖部形成部の後端には折り込み時に端部が背もたれ形成部の頂部内面に当たらないように第１折り目１５に対して斜めに切り込んでＶ型切欠部１８が設けられ、肘掛け形成部１２と袖部形成部１３の第１折り目１５は、その切欠部１８と第１折り目１５との交点Ｊと前記折り目９の前端の交点Ｅとを結んで設けられる。折り目９と第１折り目１５との角度（∠ＦＥＧ）θと、第１折り目１５と後述の第４折り目２０との角度（∠ＧＥＩ）θをほぼ等しくしてある。
【００１７】
第２折り目１６は、肘掛け形成部１２と袖部形成部１３とを区分する折り目であって、肘掛け形成部１２の折り目９の後端Ｆを基点として前記Ｇと結び、∠ＥＦＧを座部形成部１に対する背もたれ形成部の起立角度αとほぼ同角度θ３とし、第１折り目１５を中心としてＦＧとＧＩが等角に屈折して設けられる。第１折り目１５と、その両側の第２折り目１６となす角度θ１は等しくしてある（∠ＦＧＥ＝∠ＥＧＩ）。実施形態では第１折り目１５を中心として両側に対称に同じ三角形の肘掛け形成部１２が形成され、その折り目１５で山折りして三角形の肘掛け形成部を合わせるようにしてある（三角形ＥＧＦと三角形ＥＧＩは等しい）。折り目９と第２折り目１６とのなす角度（∠ＥＦＧ）θ３は座部形成部１と背もたれ形成部５の角度αとほぼ同じとする。また、第２折り目１６と折り目２０とのなす角度（∠ＧＩＥ）は折り目９と第２折り目１６とのなす角度（∠ＥＦＧ）θ３と等しくしてある。第１折り目で山折りすることにより肘掛け部の第２折り目（ＦＧとＧＩ）が同じ位置で合わせられ、第３折り目１７で谷折りしてこの第２折り目１６を背もたれ形成部５の折り目１１に合わせて袖部Ｃが折り曲げられる。袖部形成部１３には第１折り目１５と第２折り目１６の外側にできる折り曲げ形成部１３ａが含まれる。袖部形成部１３を第２折り目１６で折り曲げるとこの折り曲げ形成部１３ａが一番外側となり、この面に背面部形成部７の抑え部Ｄが当てられる。
【００１８】
第３の折り目１７は、前記背もたれ形成部５と前記袖部形成部１３との折り目１１と該第３の折り目と基点を同じとする第２の折り目１６とが形成する角度を２分するものである。第３折り目１７は、前記第１折り目１５と袖部形成部１３の折り目１１とで囲まれる面をその折り目の前端Ｆを基点として端部まで中間で谷折り可能に設けられる。この第３折り目１７と折り目１１の角度θ２と第３折り目１７と第２折り目１６の角度は等しくする（∠ＫＦＭ＝∠ＫＦＧ）。なお、板紙の厚み分を考慮して、例えば山折り、谷折りのために肘掛け形成部、袖部形成部等の折り目の角度を若干修正して合わせる。
図に示す実施例では、θは約３０度、θ１は約５０度、θ２は約３８度、θ３は約１００度の場合を示してある。
実施例では袖部形成部１３の端部には折り込み時に対向する端部が当たらないように第３折り目１７に対して斜めに切り込んでＶ型切欠部１９が設けられている。前記袖部形成部１３の第３折り目１７は、Ｖ型切欠部１９の交点Ｋと前記折り目１１の前端Ｆとを結んで設けられている。背もたれ形成部の巾が狭く両側の袖部形成部を折り込んだ時に端部が重なる場合には、袖部形成部の端部を前記のように切欠いて切欠部を設けて端部同士が重ならないようにするのが好ましい。また、袖部形成部の後端部は背もたれ形成部５を折り目６で折るときに邪魔とならないようにカットするのが好ましい。背もたれ形成部の巾が広く両側の袖部形成部を折り込時端部が重なることがない場合には、切欠部を設けなくともよい。実施形態では袖部形成部の端部が背もたれ形成部頂部に当たらないように、また端部同士が相互に当たらないようにＶ型切欠部を設けたが、この形状に限られるものではなく、端部を適宜形状にカットして当たらないようにすることができる。
【００１９】
従って、図６ないし図１０に示すように、椅子の座部形成部、背もたれ形成部、肘掛け部、袖部形成部は、肘掛け形成部１２と袖部形成部１３を座部形成部１の折り目９、１１で上方へ折り曲げて起立させ、肘掛け形成部１２と袖部形成部１３を第１折り目１５で山折りして重合させた三角形状の肘掛け部Ｂとそれに連続した袖部形成部１３が組み立てられ、袖部形成部１３は第１折り目の山折り、第３折り目１７の谷折りで重ね合わされ、その重合した袖部形成部１３が第２折り目１６で折り曲げられて、この折り目１６が背もたれ形成部５の折り目１１に合わされ袖部Ｃとして背面に折り込まれ、背もたれ形成部５の背面を覆う背面部形成部７で該袖部Ｃが抑えられて組み立てられる。重ね合わせた袖部形成部を折り曲げて背もたれ形成部の背面に当て、それを背面部形成部の抑え形成部で抑えるので、背もたれ形成部を起立状に確実に保持できる。
【００２０】
図１ないし図９に示すように、椅子の脚部は座部形成部を支持するように前面脚部４と後面脚部８が構成される。
前面脚部４は、前面形成部４ａと、その両側に折り目１０を介して設けた側面形成部１４とからなる。該側面形成部１４の側部に折り目２１を介して前記肘掛け形成部１２と連続した抱え込み形成部２２が一体に設けられる。
第４折り目２０は、肘掛け形成部１２と抱え込み形成部２２を区分する折り目であって、第１折り目１５と基点を同じとし、第４折り目と第１折り目とが形成する角度は座部形成部の折り目と第１折り目とのなす角と等しい角度であり、肘掛け部の山折り時、肘掛け形成部１２と座部形成部１との折り目９の前端Ｅを基点として座部形成部と肘掛け形成部の折り目９に合わせて折り曲げ可能とする。第４折り目２０は第１折り目１５を中心として座部形成部１の折り目９と対称で、かつ肘掛け形成部１２と座部形成部１との折り目９と第１折り目１５とのなす角度θとほぼ等しい角度（∠ＦＥＧ＝∠ＧＥＩ）に設けられ、この第４折り目２０と前記側面形成部１４の折り目２１との間に三角形状の抱え込み形成部２２が形成され、該抱え込み形成部２２で座部形成部１の底部を抱え込みうるようにする。すなわち、第１折り目１５に対して両側に対称に三角形が形成されるので、第１折り目１５で山折りすると、肘掛け部Ｂの下端となる第４折り目２０のＥＩが折り目９のＥＦと合致され、かつ折り目２１を谷折りし、三角形状の抱え込み形成部２２を座部形成部１の下面に折り曲げて密接させ座部形成部１の底部を抱え込むように組み立てできる。
【００２１】
椅子の脚部の構成は、前面脚部４の側面形成部と、後面脚部８の脚部形成部をＸ型に組み合わせて座部形成部の底部を支持できる構造とする。実施形態では、座部形成部１に対して前面脚部４の前面形成部４ａを折り曲げて立て、かつ座部形成部１に対して肘掛け形成部１２を第１折り目１５で山折りし、折り目９を谷折りし、かつ抱え込み形成部２２の第４折り目２０を座部形成部１の折り目９に合わせて折り曲げ座部形成部１の底面に折り込んで座部形成部１の底面を受けて支持する。また、後面脚部８は背面部形成部７の下部と、その両側の板状或いは箱形等の脚部形成部４０とからなり、背面部形成部７に対して脚部形成部を折り曲げて座部形成部１の底面を受けて支持する。この前面脚部４の側面形成部と後面脚部８の脚部形成部４０をＸ型に組み合わせて座部形成部１を受けて保持する。
【００２２】
実施形態の脚部をＸ型とした場合の前面脚部４の構造を説明する。
前面脚部４は方形の前面形成部４ａの両側に折り目１０を介して方形の側面形成部１４が設けられ、該側面形成部１４と抱え込み形成部２２との折り目２１は折り目１０に対して直角で、折り曲げ時床面に垂直になるようにする。座部形成部１の前部を奥より高くして座面を傾斜させる場合は、折り目２１を折り目１０に対して傾斜させる。
第４折り目２０は、肘掛け形成部１２の折り目９の前端Ｅを基点として端部Ｉまで第１折り目１５と折り目９とのなす角度θと等しい角度（∠ＦＥＧ＝∠ＧＥＩ）で、かつ折り目２１との角度（∠ＮＥＩ）をθ４として、座部形成部１の底面に折り込みうる抱え込み形成部２２が形成される。角度θ４は前記第１折り目１５のθの大きさと、座部形成部に対する側面形成部１４の折り目２１の角度により変わる。実施例でθ４は約３５度としてある。抱え込み形成部２２を座部形成部の底面に折り込時、抱え込み形成部２２の折り目２１が座部形成部１の下面に対して斜めに配置され、両側の側面形成部１４が交叉方向に組み立てられる。実施形態では両側の側面形成部１４は後述の後面脚部８の脚部形成部４０とＸ型に組み立てできるように折り目２１で折り曲げる。
従って、この前面脚部４の両側の側面形成部１４と後述の後面脚部８の脚部形成部４０を座部形成部１の四隅を結ぶ対角線の方向に折り曲げてＸ型に組み立て支持可能とできる。
前面脚部４の構造は上記のものに限定されるものではなく、例えばその側面形成部を箱形に構成して座部形成部を支持するようにもでき、或いは、第１折り目１５より下部を真っ直ぐとした側面形成部とすることもできる（この場合は第４折り目と折り目２１を設けない）。或いは、前面脚部４を箱形に組み立てる構造とすることもできる。
【００２３】
背もたれ形成部５の頂部２４は任意の巾の２本の折り目６を設けて断面コ字型に折り曲げ可能に設けられ、該背もたれ形成部に連続して背もたれ形成部の背面を覆う面７ａと後面脚部８とを構成する背面部形成部７が一体に設けられる。又、図４および図５に示すように背面部形成部７は背もたれ形成部５と分離して背もたれ形成部５の上端に接着剤等結合手段により継ぎ合わせて一枚の板紙とすることもできる。
背面部形成部７は、その上部両側に折り目２５を介して前記背もたれ形成部５の背面に被せて袖部形成部１３を抑える抑え部Ｄが設けられ、かつその下部は後面脚部８とされる。
背面部形成部７の両側には折り目２５を介して背面側部形成部２６、該背面側部形成部２６の上部に折り目２７ａを介して背もたれ形成部の背面に折り込む袖部形成部を抑える抑え部Ｄと、下部両側には、折り目２７ｂを介して箱形に組み立て可能な脚部形成部４０が形成される。脚部形成部４０は外側形成部４１と下側形成部４８と内側形成部５０および上側形成部４３を折り目を介して連設し、かつ前記前面脚部の側面形成部１４と、後面脚部の内、外側形成部５０、４１には、対向する端面に相互に係脱しうる係合部を設けて前面脚部と後面脚部とをＸ型に組合せ可能にし、背面部形成部７の下端には前記前面脚部と後面脚部に被せて嵌める底部形成部６０が設けられている。
実施形態では、縦長の方形状背面部形成部７の両側に折り目２５を介して抑え形成部２９等の抑え部Ｄと、後面脚部８の両側の脚部形成部４０とを構成する一連の方形状板面を形成し、抑え形成部２９と脚部形成部とを切り離す切り込み２８を入れ、抑え形成部と脚部形成部を折り目で別に折り曲げ可能としてある。
前記背面部形成部７の後面脚部８は、箱形に折り曲げて組み立てて脚部を堅牢とし、座部形成部を安定して保持できるようにするのが好ましい。実施形態では、後面脚部８の両側に箱形の脚部形成部４０が構成されている。さらに、背面部形成部７の下端には折り目６１を介して脚部の下面に嵌める底部形成部６０が形成されている。
【００２４】
背面部形成部７の上部から下部までの両側に折り目２５を介して背もたれ形成部と任意の間隔をとるために幅狭の背面側部形成部２６が形成され、該背面側部形成部２６に折り目２７ａ、２７ｂを介して方形の板面が設けられ、その板面の外端より背面側部形成部２６まで切り込み２８を入れてその上部に前記袖部Ｃを抑える方形状の抑え形成部２９と、下部に箱形に組み立てる脚部形成部４０が形成される。
該背面側部形成部２６の上部には、背面部形成部７の頂部から脚部形成部４０の上部までの折り目２７ａが座部形成部に対する背もたれ形成部の傾斜角度とほぼ同じ傾斜として設けられ、背面部形成部７の上部の抑え形成部２９を折り目２５、２７ａで断面コ字型に折り曲げた時、抑え形成部２９を背もたれ形成部の座部形成部に対する傾斜面とほぼ平行となるようにして抑え部Ｄが構成され、前記袖部形成部を背面より抑えることができるようにする。
また、側部形成部２６の下部は幅広の帯状として、下部の脚部形成部４０との折り目２７ｂが床面に対して垂直に設けられ、脚部形成部４０をその折り目２５、２７ｂで座部形成部に対して前記側面形成部１４の角度に合わせた角度となるように折り曲げて座部形成部１を支持しうるようにする。
【００２５】
背もたれ形成部の背面に被せる袖部を抑える抑え部Ｄの構造を説明する。 両側の抑え形成部２９は先端に前記折り目２７ａと同じ傾斜の折り目３０を介して前記側部形成部２６の巾とほぼ同じ幅とした側部形成部３１が設けられ、さらに、その先端に折り目３２を介して折り曲げ形成部３３が設けられている。そして、対向する抑え形成部２９には一方の先端の側部形成部３１に差込片３４、他方の先端の側部形成部３１に差込孔３５が設けられ、差込片を差込孔に差し込んで抑え部Ｄを組み立てる。
従って、図９に示すように、抑え形成部２９を折り目２５、２７ａ、３０、３２でコ字型に折り曲げて抑え部Ｄを形成して、これを背もたれ形成部に当てると、背もたれ形成部と背面部形成部間に所定の間隔が設けられ、ダンボール紙の弾性と相俟って背もたれ形成部の背面に折り込んだ袖部を弾性的に抑えて挟持でき、背もたれ形成部を支えて補強することができる。実施例では、抑え形成部の先端を差込孔と差込片を相互に差し込んで止める場合を示したが、これに限られるものではなく、例えば対向する抑え形成部の先端を相互に係合できる構造とすることもでき、或いは接着して止めることもできる。
【００２６】
背面部形成部７の後面脚部８の構造を説明する。背面部形成部７の下部の後面脚部８には、その両側に折り目２７ｂを介して箱形の脚部の脚部形成部４０が設けられ、該脚部形成部４０が折り目２５、２７ｂで任意の角度に折り曲げ可能とされる。脚部形成部４０は前記前面脚部４の両側の側面形成部１４とほぼ同じ高さとして、前面脚部４の両側の側面形成部１４とを相対向させて組み立て、前面脚部４の側面形成部１４と後面脚部８の箱形とする脚部が椅子の脚でありかつ座部形成部１を受ける支持脚となる。
【００２７】
実施形態では、座部形成部１を保持する脚部をＸ型とした場合で、後面脚部８の両側に箱形の脚部形成部を設け、前脚部とＸ型に組み合わせて組み立てる椅子について説明する。
前面脚部４の前面形成部４ａの下端には差込片６６が設けられ、側面形成部１４の先端には折り目６７を介して折り曲げ形成部６８が形成され、差込孔６９が設けられている。後面脚部８の両側の箱形の脚部形成部４０は、前記背面側部形成部２６と、その側面に折り目２７ｂを介して設けた方形状の外側形成部４１と、該外側形成部４１の上部に折り目４２を介して設けた上側形成部４３と、該上側形成部４３に折り目４４を介して設けた折り曲げ形成部４５で構成され、その先端に差込片４６が形成され、そして、外側形成部４１の下部には折り目４７を介して下側形成部４８と、下側形成部４８に折り目４９を介して方形状の内側形成部５０と、該内側形成部５０に折り目５１を介して折り曲げ形成部５２とが構成される。内側形成部５０には前記差込片４６を差し込む差込孔５３が設けられている。脚部形成部４０は内、外側形成部４１、５０、上側形成部４３、下側形成部４８を折り目で折り曲げて差込片４６を内側形成部５０の差込孔５３に差し込んで箱形に組み立てる。
また、下側形成部４８には後述の底部形成部６０の差込片６３を差し込む差込孔５４が形成されている。実施例では、前記折り曲げ形成部４５、差込片４６は前記板面の切り込み２８により形成されているが、これに限られるものではない。
【００２８】
前記座部形成部１の前面脚部４、および前記背面部形成部の後面脚部８には、脚部をＸ型に組み合わせるために、相対向する端面に相互に係脱しうる係合部５５を設ける。
前後の脚部をＸ型に組み合わせる係合部５５として、前面脚部４の両側に設ける方形の側面形成部１４の側端面に複数の係合片５６が一定の間隔に形成され、後面脚部８の外側形成部４１と内側形成部５０の側端面には一定の間隔をおいて係合片５７、５８が形成され、左右の内側形成部５０の係合片５８は対向させて相互に嵌合しうるように互い違いに形成され、また、左右の外側形成部４１の係合片５７は前記前面脚部４の側面形成部１４の側端面に設けた係合片５６と相互に嵌合しうるように互い違いに形成されている。
【００２９】
前面脚部４の側面形成部１４の係合片５６は両側が円弧状に切り込まれた凸片（差込片）５６ａと、嵌合溝５６ｂが形成され、後面脚部８の外側形成部４１にも同様に凸片（差込片）５７ａと嵌合溝５７ｂ、またその内側形成部５０にも同様に凸片（差込片）５８ａと嵌合溝５８ｂが設けられる。凸片と嵌合溝の位置は相対向して係合できるように位置をずらせて形成されている。
従って、肘掛け形成部１２の抱え込み形成部２２を座部形成部１の下面に折り込み、前面脚部４の側面形成部と後面脚部８の両側の箱形に組み立てた脚部形成部４０をそれぞれ座部形成部１の四隅を結ぶ対角線に沿って斜めに折り曲げ、前部脚部の側面形成部１４の凸片５６ａが後面脚部の外側形成部４１の嵌合溝５７ｂに嵌合され、その嵌合溝５６ｂに後面脚部の外側形成部４１の凸片５７ａが相互に嵌合され、かつ後面脚部の内側形成部５０同士の凸片５８ａと嵌合溝５８ｂも同様に相互に嵌合されて、座部形成部１に対して前面脚部４、後面脚部８の支持脚をＸ型に組み立て支持することができる。
ダンボール紙等板紙で前記側面形成部、脚部形成部の側板に凸片、嵌合溝を一体に設けるので、板紙だけで椅子を組み立てできて便利である。
なお、前面脚部と後面脚部の支持脚、後面脚部の支持脚同士の結合構造はこれに限られるものではなく、対向面に適宜結合構造を設けて結合するか、接着剤で接着するか、接着テープ等で止めることもできる。
【００３０】
背面部形成部７の端面に折り目を介して前面脚部と後面脚部の底面を覆うことができる底部形成部６０を設け、該底部形成部を前記前面脚部と後面脚部の底面に装着可能とする。実施形態では背面部形成部７の下端に折り目６１を介して底部形成部６０が設けられている。
実施形態では、Ｘ型に組み合わせる前面脚部と後面脚部を覆うように底部形成部６０は両側をＶ型に形成した面６２とし、その面のほぼ中央に差込片６３が設けられ、かつ先端の折り曲げ形成部６４には前面脚部４の先端に設ける差込片６６を差し込む差込孔６５が設けられている。
前面脚部の側部形成部と後面脚部の脚部形成部が凸片と嵌合溝で嵌合され、しかもその組み合わせた前面脚部と後面脚部の底面に底部形成部６０を被せて嵌めるので、前面脚部と後面脚部が外れることなく確実に保持でき、ダンボール紙等板紙でも椅子に安定して座ることができる。ダンボール紙等板紙で前記背面部形成部に底部形成部を一体に設けるので、板紙だけで脚部を補強して椅子を組み立てできる。
なお、底部形成部６０はＸ型に組み合わせる脚部の底面に合わせた形状としたが、これに限られるものではなく、例えば方形等とすることは自由に出来る。なお、底部形成部は差込片を設けて、脚部に差込み結合する構造としたが、これに限られるものではなく、例えば、脚部底面に接着剤で接着するか、或いは接着テープで止めることもできる。板紙の厚み分を考慮して、例えば山折り、谷折りのために脚部、抑え形成部、底部形成部等全ての折り目の角度を若干修正して合わせる。
【００３１】
上記したこの発明の組み立て椅子の組み立て方を図５ないし図１３で説明すると、座部形成部１に対して折り目３で折り曲げて背もたれ形成部５を所定の傾斜角度に起立させ、肘掛け形成部１２を座部形成部１の折り目９で折り曲げて起立させ、袖部形成部１３を折り目１１で後方へ折り曲げ、かつ肘掛け形成部１２と袖部形成部１３を第１の折り目１５で山折りし、第３折り目１７で谷折りして重合させて肘掛け部Ｂとそれに連続した袖部Ｃが組み立てられ、その重合した袖部Ｃを第２折り目１６を背もたれ形成部５の傾斜した折り目１１に合わせて背面に折り込み、背面部形成部７の抑え形成部２９を折り目でコ字型に折り曲げて抑え部Ｄを形成して、これを背もたれ形成部に当てると背もたれ形成部と背面部形成部間に所定の間隔が設けられ、ダンボール紙の弾性と相俟って背もたれ形成部の背面に折り込んだ袖部形成部を弾性的に保持し、前面脚部４を座部形成部１に対して折り目２で下方へ折り曲げ、第４折り目２０で抱え込み形成部２２を折り曲げて座部形成部１の下面に折り込んで底部を抱える。脚部形成部４０は外側形成部４１、内側形成部５０、上側形成部４３、下側形成部４８を折り目で折り曲げて外側形成部４１の差込片４６を内側形成部５０の差込孔５３に差し込んで箱形に組み立てられ、前面脚部４の側面形成部１４と後面脚部８の両側の脚部形成部４０をそれぞれ座部形成部１の四隅を結ぶ対角線に沿って斜めに折り曲げ、前面脚部４の側面形成部１４の凸片５６ａが後面脚部８の外側形成部４１の嵌合溝５７ｂに嵌合され、かつ側面形成部１４の嵌合溝５６ｂに外側形成部４１の凸片５７ａが嵌合され、かつ後面脚部８の相対向する内側形成部５０、５０の凸片５８ａと嵌合溝５８ｂも同様に相互に嵌合されて、座部形成部１に対して前面脚部４、後面脚部８の脚部をＸ型に組み立て支持することができる。そして、そのＸ型に組み立てた脚部に対して底部形成部６０を折り曲げて、差込片６３を後面脚部８の下側形成部４８の差込孔５４と前面脚部４の折り曲げ形成部６８の差込孔６９に差込み、さらに、前面脚部４の前面形成部４ａの下端の差込片６６を底部形成部６０の差込孔６５に差込んで椅子の脚部の組み立てを完了する。底部形成部６０をＸ型に組み立てた脚部に被せ、座部に座って荷重がかかるもＸ型に組んだ脚部が外れるのを防ぐことができ、ダンボール製等板紙の椅子であっても、安全に座ることができる。
１枚の方形状ダンボール紙等板紙を図１〜３に示すように無駄なく使用してカット製作できるので、ダンボール紙等の切れ端の無駄となる部分が非常に少なく省資源と出来、１枚のダンボール紙であるから、保管、搬送、陳列等にも便利である。また、１枚のダンボール紙を組み立てるだけですから、災害など緊急の場合に速やかに組み立てて使用することができて、便利であり、災害用として多数備蓄しておくことができる。また、肘掛け、背もたれ形成部、Ｘ型脚部、前面脚部、後面脚部等は折り目が外面に出ますが、切断面は外部に殆ど出ていないので椅子の外観が非常にきれいにでき、商品価値を向上できる。また、実施形態では、組み立て椅子を接着剤等を使用しないで、組み立てているので、解体が容易で、回収業者等に出しやすく、リサイクルに適している。
【００３２】
以上この発明の実施の形態の一例について説明したが、この発明はこうした実施の形態のものに何等限定されず、この発明の要旨を逸脱しない範囲において種々なる形態で実施しうることは勿論である。この発明の板紙は、合成樹脂製のフイルム等折り曲げ可能な板材をも含むものである。
【００３３】
【発明の効果】
この発明の組み立て椅子は、ダンボール紙、厚紙等板紙で前記肘掛け形成部と袖部形成部との第１の折り目を山折り、第３の折り目を谷折りで合わせて肘掛け部と袖部形成部を組み立て、この袖部形成部を第２の折り目で背もたれ形成部の背面に折り込み、背面部形成部で該袖部形成部を抑えて組み立てることができる。座部形成部の両側に肘掛け部を簡単に組み立てできるとともに袖部形成部を背もたれ形成部の背面に当て背面部形成部で抑えるので、肘掛け部と背もたれ形成部を丈夫に補強できる。この組み立て椅子は１枚のダンボール紙等板紙を利用して無駄なく形成することができ、資源の無駄が無く、かつ、板状のままで多数枚重ねて運搬、保管、陳列等できるので便利である。
【００３４】
この発明の組み立て椅子は、肘掛け形成部に第４の折り目を介して抱え込み形成部を座部形成部の下面に折り曲げ可能に設けたので、抱え込み形成部で座部形成部を抱え込み丈夫に脚部を組み立てできる。
【００３５】
この発明の組み立て椅子は、前記効果の他に、座部形成部の下面で前面脚部と後面脚部をＸ型に組み合わせて座部形成部を保持できるので、椅子を堅牢に組み立てできる。前記背面部形成部に設ける後面脚部は、箱形に折り曲げて組み立てて脚部を堅牢とし、座部形成部を安定して保持できる。また、前記座部形成部の前面の前面脚部、および前記背面部形成部に設ける後面脚部の相対向する端面に相互に係脱しうる係合部を設けたので、前後の脚部を係止して確実に結合でき、座部を安定して支えることができる。
さらに、前面脚部と後面脚部の底面を覆うことができる底部形成部を設けたので、前後の脚部が外れることなく確実に結合でき、組み立て椅子を丈夫とすることができる。
【図面の簡単な説明】
【図１】この発明の組み立て椅子の展開図である。
【図２】椅子前部の拡大展開図である。
【図３】椅子後部の拡大展開図である。
【図４】別の実施例の組み立て椅子を構成する前後部を分離した展開図である。
【図５】椅子の前後部を結合した展開図である。
【図６】椅子の前部と後部を組み立てる状態の斜視図である。
【図７】椅子の前部と後部を組み立てる状態の斜視図である。
【図８】椅子の座部形成部、前面脚部、背もたれ形成部、袖部形成部の背面側拡大斜視図である。
【図９】椅子の背面部形成部、後面脚部の拡大斜視図である。
【図１０】組み立てた状態の組み立て椅子の斜視図である。
【図１１】組み立て椅子の平面図である。
【図１２】同側面図である。
【図１３】底部形成部を除いて示す椅子の底面図である。
【図１４】脚部を底部形成部で覆った椅子の底面図である。
【符号の説明】
１ 座部形成部
４ 前面脚部
５ 背もたれ形成部
７ 背面部形成部
８ 後面脚部
９ 折り目
１０ 折り目
１１ 折り目
１２ 肘掛け形成部
１３ 袖部形成部
１４ 側面形成部
１５ 第１折り目
１６ 第２折り目
１７ 第３折り目
２０ 第４折り目
２１ 折り目
２２ 抱え込み形成部
２９ 抑え形成部
４０ 脚部形成部
４１ 外側形成部
５０ 内側形成部
５５ 係合部
５６ 係合片
５７ 係合片
５８ 係合片
６０ 底部形成部
Ａ 板紙
Ｂ 肘掛け部
Ｃ 袖部
Ｄ 抑え部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an assembly chair capable of assembling a seat portion forming portion, a backrest forming portion, an armrest portion, a sleeve portion, a leg portion, and the like with a single piece of cardboard.
[0002]
[Prior art]
As a conventional foldable chair, it is formed of a foldable elastic thin plate material, is a flat rectangular tube, and is separated from and opposed to a bending diagonal line connecting the upper end of the adjacent square line from the middle part of the square line. A pair of triangular side walls located inside the side walls are folded inward to form a suspended portion, and are separated by a horizontal line that connects the intersections of the square line and the diagonal line for bending, and a square line located at both ends thereof. Some square side walls are bent inward to make a seating surface. (For example, see Patent Document 1.)
Also, as a corrugated cardboard stool, assembling a main body based on a foldable square box shape with front and rear wall and left and right side walls, so that the upper end of the front wall can be folded inward until reaching the rear wall The fold line is formed near the upper end of the front wall, and an oblique inversion line from the end of the fold line of the front wall to the upper end of the rear wall is formed at the upper ends of the left and right side walls. Some are foldable at the same time. (See Patent Document 2.)
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 7-39602 (FIG. 7)
[Patent Document 2]
JP-A-5-154024 (FIG. 1)
[0004]
[Problems to be solved by the invention]
The folding chair of Patent Document 1 has a seat, a backrest, an armrest, and a leg. However, since there is nothing to reinforce the backrest, the seat, the backrest, etc. are weak, and the middle of the seat is supported by the leg. The seat is weak in corrugated cardboard, and the stool of Patent Document 2 has a seat, a backrest, an armrest, and a leg, but there is nothing to support the backrest from the back, so the seat, the backrest In addition, the seat is supported by a square cylindrical support member that is provided separately from the main body, and can be made by combining multiple assembly members. Conventionally, there is no one cardboard paper that can assemble the seat, backrest, armrest, legs, backrest reinforcement, seat support legs, etc. The chair part and seat as described above There was only what was assembled as a separate member.
[0005]
This inventor uses a piece of cardboard paper, devised a unique fold for the seat, backrest, armrest, leg, etc., bent at the crease, and formed the seat, backrest, armrest We have devised an assembly chair that can assemble the sleeve forming part, the back forming part, and the front and rear legs.
An object of the present invention is to provide an assembly chair in which a seat portion forming portion, a backrest forming portion, an armrest forming portion, a sleeve portion, a leg portion and the like can be easily and firmly assembled by using a piece of cardboard paper or the like. And
An object of the present invention is to provide a durable assembly chair by folding a sleeve forming portion continuous with an armrest forming portion on the back surface of a backrest forming portion.
In this invention, the holding formation part continuous to the armrest can be folded and held on the bottom surface of the seat forming part, and the assembly can be stably seated by supporting the seat forming part in the X-shaped assembly. The purpose is to provide a chair.
[0006]
[Means for Solving the Problems]
The assembly chair according to claim 1 of the present invention is an assembly chair made of paperboard, and the assembly chair made of paperboard is provided through a crease at a rectangular seat portion forming portion and a rear end of the seat portion formation portion. A backrest forming portion, a back surface forming portion provided on the top of the backrest forming portion via a fold, an armrest forming portion provided on both sides of the seat portion forming portion via a fold, and the armrest forming portion; And a sleeve forming portion provided on both sides of the backrest forming portion via a fold line,
Each of the armrest forming portions and each of the sleeve portion forming portions includes a first fold 15 that can be mountain-folded and extends obliquely from the front end of the fold with the seat forming portion to the rear side end of the sleeve portion forming portion. The first end extends from the rear end of the fold between the seat portion forming portion and the armrest forming portion to the rear side end of the armrest forming portion at a predetermined angle greater than 90 degrees to 90 degrees with respect to the fold. A second fold 16 that crosses the crease and bends at the intersection and reaches the rear side end of the armrest forming portion, and a valley fold extending from the same point as the second fold to the rear end of the sleeve portion forming portion. A third fold line 17 is formed, and the third fold line is formed by a fold line between the backrest forming part and the sleeve part forming part and a second fold line having the same base point as the third fold line. Divide angle And than, the first fold is to 2 minutes at the bent point of the second fold to bend,
The armrest forming portion and the sleeve portion forming portion are mountain-folded at the first fold, the valley fold is formed at the third fold to form an armrest portion, and the sleeve portion is folded at the back of the backrest at the second fold, On the other hand, it can be assembled by folding the back surface forming portion and suppressing the sleeve portion.
[0007]
The assembly chair according to a second aspect of the present invention is the assembly chair according to the first aspect, wherein the front surface forming portion that constitutes the front leg provided at the front end of the seat portion forming portion via the fold, and the folds on both sides of the front surface forming portion. A side surface forming portion provided via the armrest forming portion provided on both sides of the seat portion forming portion via the fold line, and a holding formation portion continuous with the armrest forming portion.
The holding formation part continuing to each armrest forming part includes a fourth fold line 20 extending obliquely to a side edge of the holding formation part with a fold end of the seat part forming part as a base point, and a fold line 21 of the side surface forming part. Formed between,
The fourth fold has the same base point as the first fold, and the angle formed by the fourth fold and the first fold is the same as the angle formed by the fold and the first fold of the seat portion forming portion,
The holding formation portion can be folded at the fourth fold to hold the bottom portion of the seat formation portion.
[0008]
The assembly chair according to claim 3 of the present invention is an assembly chair made of paperboard, and the assembly chair made of paperboard is provided through a crease at a rectangular seat portion forming portion and a rear end of the seat portion formation portion. A backrest forming portion, a back surface forming portion provided on the top of the backrest forming portion via a fold, an armrest forming portion provided on both sides of the seat portion forming via a fold, and the armrest forming portion continuous And a sleeve forming portion provided on both sides of the backrest forming portion via a crease,
A front surface forming portion constituting a front leg provided at the front end of the seat portion forming portion via a fold, and a side surface provided with a fold on both sides of the front surface forming portion and having an engaging portion on the end surface A formation part, and a holding formation part that is continuous with an armrest formation part provided on both sides of the seat part formation part via a fold and provided on the side surface formation part via a fold,
Each of the armrest forming portions and each of the sleeve forming portions includes a first fold 15 that can be mountain-folded and extends obliquely from the front end of the fold with the seat forming portion to the rear side end of the sleeve forming portion. The first end extends from the rear end of the fold between the seat portion forming portion and the armrest forming portion to the rear side end of the armrest forming portion at a predetermined angle greater than 90 degrees to 90 degrees with respect to the fold. A second fold 16 that crosses the crease and bends at the intersection and reaches the rear side end of the armrest forming portion, and a valley fold extending from the same point as the second fold to the rear end of the sleeve portion forming portion. A third fold line 17 is formed, and the third fold line is formed by a fold line between the backrest forming part and the sleeve part forming part and a second fold line having the same base point as the third fold line. Divide the angle to do Are those, wherein the first fold is to 2 minutes at the bent point of the second fold to bend,
The holding formation portion that is continuous with each of the armrest formation portions includes a fourth fold 20 that extends obliquely to a side end of the armrest formation portion with the fold end of the seat portion formation portion as a base point, and a side surface formation portion of the front leg portion Formed between the fold line 21 and
The fourth fold has the same base point as the first fold, and the angle formed by the fourth fold and the first fold is the same as the angle formed by the fold and the first fold of the seat portion forming portion,
A back side forming part provided on both sides of the back side forming part via a crease, and a restraining forming part for suppressing the sleeve part forming part provided on the top of the back side part forming part, A rear leg portion assembled in a box shape provided through a crease at a lower portion of the rear side portion forming portion, the rear leg portion being engageable with an engaging portion of the side surface forming portion of the front leg portion on the end surface An outer forming portion having an engaging portion, an upper forming portion and a lower forming portion provided on the outer forming portion via a fold, and a fold formed on the lower forming portion and the inner surface on the end surface An inner forming part having an engaging part engageable with the engaging part of the forming part, and covers the bottom of the front leg part and the rear leg part provided through a fold at the lower end of the back surface forming part. A bottom forming portion is provided.
[0009]
According to the configuration of the assembly chair of the present invention, the cardboard paper, cardboard, or the like is used to fold the mountain at the first fold of the armrest forming portion and the sleeve portion forming portion, and the third fold is valley-folded to form an armrest portion. And the sleeve portion forming portion can be assembled, the sleeve portion forming portion can be folded at the back side of the backrest forming portion at the second fold, and the sleeve portion forming portion can be held down and assembled at the back portion forming portion. The armrest portions can be easily assembled on both sides of the seat portion forming portion, and the sleeve portion forming portion is folded to the back surface of the backrest forming portion and restrained by the back surface portion forming portion, so that the armrest forming portion and the backrest forming portion can be made strong. Since this assembly chair can be formed of a single paperboard or a single paperboard by bonding a plurality of paperboards, it is convenient for transportation, storage, display, etc.
[0010]
According to the configuration of the assembly chair of the present invention, the holding formation portion formed by the fourth fold with the armrest forming portion and the fold with the side surface forming portion is folded into the lower surface of the seat forming portion, and the seat forming portion is held. The armrest and seat forming part can be assembled firmly.
[0011]
According to the structure of the assembly chair of the present invention, in addition to the above, the seat leg forming portion can be supported by combining the front leg portion and the rear leg portion in the X shape on the lower surface of the seat portion forming portion, so that the chair can be assembled firmly. The back leg forming part can be reinforced by folding the sleeve forming part on the back of the back forming part and covering the back forming part with the restraining forming part of the back part forming part. It is possible to fold and assemble the legs to make the legs solid, and to stably hold the seat-forming parts, and to the front legs of the front-ends of the seat-forming parts and the rear-legs provided on the back-forming parts. An engaging part that can be engaged and disengaged is provided so that the front and rear leg parts and the rear leg parts can be engaged with each other to be assembled into a box shape, which is stable when sitting. Furthermore, since the bottom portion forming portion that can cover the bottom surfaces of the front leg portion and the rear leg portion is provided, the front and rear leg portions can be reliably coupled, and the assembly chair can be made strong.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a development view of an assembly chair according to the present invention, FIG. 2 is an enlarged development view of a chair front part, FIG. 3 is an enlarged development view of a chair rear part, and FIG. 4 is a separation of front and rear parts constituting an assembly chair of another embodiment. FIG. 5 is a development view in which the front and rear parts of the assembly chair are joined together, FIG. 6 is a perspective view in a state of assembling the front and rear parts of the chair, and FIG. 7 is a perspective view in a state of assembling the front and rear parts of the chair. FIG. 8 is a rear side enlarged perspective view of a chair seat part forming part, a front leg part, a backrest forming part, a sleeve part forming part, FIG. 9 is a rear side enlarged perspective view of a rear part forming part and a rear leg part of the chair, 10 is a perspective view of the assembled chair in an assembled state, FIG. 11 is a plan view of the assembled chair, FIG. 12 is a side view thereof, FIG. 13 is a bottom view of the chair excluding the bottom forming portion, and FIG. It is a bottom view of the chair covered with the bottom part formation part.
[0013]
1 and 2, a cardboard, cardboard or other paperboard A is used to form a seat part 1 and a front part 4a and a backrest part that constitute a front leg part 4 through folds 2 and 3 at the front and rear ends thereof. 5, a back surface forming portion 7 that covers the back surface of the back rest forming portion through the fold 6 at the top of the back rest forming portion 5 and constitutes the rear leg 8, the seat forming portion 1, the back rest forming portion 5, and On both sides of the front surface forming portion 4a of the front leg portion 4, an armrest forming portion 12, a sleeve portion forming portion 13, a holding portion forming portion 22 and a side surface forming portion 14 are provided via creases 9, 11, 10, and an armrest forming portion. 12, the sleeve forming portion 13, the holding forming portion 22 and the side surface forming portion 14 are provided continuously and integrally. A bottom forming portion 60 is provided at the tip of the back surface forming portion 7 via a fold 61. The backrest forming portion 5 is substantially square from the fold 3 of the seat forming portion 1 to the fold 6 of the top, and the back forming portion 7 is substantially rectangular from the fold 7 of the top to the fold 61 of the bottom forming portion 60, And a rear leg on both sides.
As the paperboard A, one paperboard or a paperboard obtained by bonding a plurality of paperboards is used. In the embodiment shown in FIGS. 1 to 3, the seat forming part, the backrest forming part, the back part forming part, the sleeve forming part, the armrest forming part, the holding part forming part, the front leg forming part of the front leg part of the assembly chair; A case where the side surface forming portion and the like are created by a cutting machine such as a cutter using a piece of corrugated paper is shown. The embodiment shown in FIG. 4 and FIG. 5 shows a chair front part A1 and a rear part A2 that are separately provided so that the backrest forming part 5 and the back part forming part 7 are joined at the top using two corrugated papers. . When a large cardboard sheet cannot be cut at once with a cutter, etc., for example, the backrest forming part (front part) and the back part forming part (rear part) are separated and created separately, and the backrest is formed. The joint portion 23a on the part side and the joint portion 23b on the back surface forming portion side may be bonded with an adhesive or the like to form a single sheet. Since it is a cardboard such as cardboard, it can be colored, printed, etc., and can be stretched. Product value can be improved by printing popular characters and other designs on the seat forming part and the backrest forming part.
[0014]
The seat portion forming portion 1, the front surface forming portion 4a of the front leg portion 4, and the backrest forming portion 5 are substantially rectangular, the armrest forming portions 12, the sleeve forming portions 13, the holding forming portions 22 and the side surface forming portions 14 on both sides thereof. And the back surface forming portion 7 is provided in a substantially rectangular shape that is substantially the same length as the combined length of the front leg portion 4 and the backrest forming portion 5, and the back surface forming portion 7 has a back surface on both sides. The side part forming part, the restraint forming part, the rear leg part 8 and the like are integrally provided. The square-shaped seat portion forming portion 1 has a slightly narrower rear portion, and the front surface of the seat portion forming portion is widened to be easy to sit on, but is not limited to this. For example, the width of the front portion and the rear portion is increased. Almost the same. The backrest forming part is substantially square. A separate reinforcing paperboard having the same square shape as the seat forming portion is separately provided, and this is adhered to the back surface of the seat forming portion so that the seat forming portion is reinforced to prevent the seat surface from being dented. You can also Further, the backrest forming part 5 bends the crease 3 at an angle larger than the fold seat part forming part by a predetermined angle from 90 degrees to 90 degrees. The bending angle α of the backrest forming portion with respect to the seat forming portion 1 is preferably set to an angle at which the backrest forming portion is bent slightly rearward in consideration of sitting comfort as a chair. In the embodiment, α is an angle larger than 90 degrees by a predetermined angle. The front surface forming portion 4 a constituting the front leg portion 4 with respect to the seat portion forming portion 1 is bent downward at the crease 2. The folding angle β of the front surface forming portion 4a with respect to the seat portion forming portion 1 is approximately 90 degrees, the seat portion forming portion 1 is inclined horizontally with the front portion slightly higher than the back, and the front leg portion is perpendicular to the floor surface. Bend it to stand. In addition to the seat portion forming portion, a reinforcing paperboard of the same size can be attached to the inner surface of the surface that needs reinforcement, such as a leg portion and a backrest forming portion, for reinforcement.
[0015]
1 to 5, the armrest forming portion 12 and the sleeve forming portion 13 are based on the front end of the fold 9 with the seat forming portion 1 (the intersection of the folds 2 and 9 of the seat forming portion 1) E. A foldable first fold 15 that extends obliquely to the rear side end of the sleeve forming portion 13 and a rear end of the fold 9 of the seat forming portion 1 and the armrest forming portion 12 (of the seat forming portion 1). (The intersection of the crease 11 between the crease 3 and the backrest forming part and the sleeve forming part) F extends from the fold 9 to the rear side end of the armrest forming part at an angle larger than the crease 9 by a predetermined angle from 90 degrees to 90 degrees. A second fold 16 that crosses the first fold, bends at the intersection and reaches the rear side end of the armrest forming portion, and a rear end of the sleeve portion forming portion based on the same point as the second fold 16 And a third fold 17 that can be folded up to the valley In addition, the third fold line 17 has an angle formed by the fold line 11 of the backrest forming part and the sleeve part forming part and the second fold line 16 having the same base point as the third fold line 17. The first fold 15 divides the bent second fold 16 into two at the bending point.
The armrest forming portion 12 and the sleeve portion forming portion 13 on both sides of the seat forming portion are mountain-folded at the first fold 15 to constitute an armrest portion B. The armrest portion B is folded at the first fold 15 and at the third fold 17 at the valley fold. The sleeve portion C is assembled to the back portion of the backrest forming portion formed by folding the sleeve portion forming portion at the second fold line 16, and the back portion forming portion 7 is folded back against the backrest forming portion to suppress the sleeve portion C. Thus, the backrest forming portion 5 is reinforced.
[0016]
As shown in FIG. 2, the first fold 15 connects the armrest forming portion 12 with the intersection G with the second fold 16 at an angle (∠FEG) θ with the front end E of the fold 9 as a base point, and forms a sleeve portion. It is provided to extend in an inclined manner to the intersection J of the notch 18 at the rear side end of the portion 13. The height of the rear end (FG = GI) of the armrest portion (the height from the seat portion forming portion when the armrest forming portion is bent upward with respect to the seat portion forming portion) H is an arbitrary height. In the embodiment, the height H of the rear end of the armrest forming portion 12 is lower than the height of the backrest forming portion 5 and higher than the center portion. The height H is not limited to this. For example, the height H may be substantially the same as the height of the backrest forming portion or may be lower than the central portion of the height of the backrest forming portion.
In addition, a V-shaped notch portion 18 is provided at the rear end of the sleeve portion forming portion so as to be obliquely cut with respect to the first fold 15 so that the end portion does not hit the inner surface of the top portion of the backrest forming portion when folded. 12 and the first fold 15 of the sleeve forming portion 13 are provided by connecting an intersection J between the notch 18 and the first fold 15 and an intersection E at the front end of the fold 9. The angle (∠FEG) θ between the fold line 9 and the first fold line 15 and the angle (∠GEI) θ between the first fold line 15 and a fourth fold line 20 described later are substantially equal.
[0017]
The second crease 16 is a crease that divides the armrest forming portion 12 and the sleeve portion forming portion 13, and is connected to the G from the rear end F of the crease 9 of the armrest forming portion 12 to form the heel EFG as a seat portion. An angle θ3 that is substantially the same as the standing angle α of the backrest forming portion with respect to the portion 1 is provided, and FG and GI are refracted equiangularly around the first fold 15. The angle θ1 formed by the first fold 15 and the second fold 16 on both sides thereof is equal (∠FGE = ∠EGI). In the embodiment, the same triangular armrest forming portion 12 is formed symmetrically on both sides with the first fold 15 as the center, and the triangular armrest forming portion is joined by folding the fold 15 into a mountain (the triangle EGF and the triangle EGI). Are equal). The angle (∠ EFG) θ3 formed by the fold line 9 and the second fold line 16 is substantially the same as the angle α of the seat part forming part 1 and the backrest forming part 5. The angle (角度 GIE) formed between the second fold line 16 and the fold line 20 is equal to the angle (∠EFG) θ3 formed between the fold line 9 and the second fold line 16. The second folds (FG and GI) of the armrest part are aligned at the same position by folding the mountain at the first fold line, and the second fold line 16 is folded at the third fold line 17 to form the fold line 11 of the backrest forming part 5. At the same time, the sleeve C is bent. The sleeve forming portion 13 includes a fold forming portion 13 a formed outside the first fold 15 and the second fold 16. When the sleeve forming portion 13 is bent at the second fold line 16, the bent forming portion 13a becomes the outermost side, and the holding portion D of the back surface forming portion 7 is applied to this surface.
[0018]
The third fold line 17 divides the angle formed by the fold line 11 of the backrest forming part 5 and the sleeve part forming part 13 and the second fold line 16 having the same base point as the third fold line. It is. The third crease 17 is provided so that the surface surrounded by the first crease 15 and the crease 11 of the sleeve forming portion 13 can be valley-folded in the middle from the front end F of the crease to the end. The angle θ2 of the third fold line 17 and the fold line 11 and the angle of the third fold line 17 and the second fold line 16 are made equal (∠KFM = ∠KFG). In consideration of the thickness of the paperboard, for example, the angle of the folds of the armrest forming portion, the sleeve forming portion, etc. is slightly corrected and matched for mountain fold and valley fold.
In the embodiment shown in the figure, θ is about 30 degrees, θ1 is about 50 degrees, θ2 is about 38 degrees, and θ3 is about 100 degrees.
In the embodiment, the end portion of the sleeve portion forming portion 13 is provided with a V-shaped notch portion 19 that is cut obliquely with respect to the third fold line 17 so that the opposite end portion does not hit when folded. The third fold line 17 of the sleeve forming part 13 is provided to connect the intersection K of the V-shaped notch part 19 and the front end F of the fold line 11. When the width of the backrest forming portion is narrow and the ends overlap when the sleeve forming portions on both sides are folded, the end portions of the sleeve forming portion are notched as described above so that the ends do not overlap each other. It is preferable to do so. Further, it is preferable that the rear end portion of the sleeve portion forming portion is cut so as not to become an obstacle when the backrest forming portion 5 is folded at the crease 6. When the width of the backrest forming portion is wide and the sleeve forming portions on both sides are not overlapped when the end portions are not overlapped, it is not necessary to provide the notch portion. In the embodiment, the V-shaped cutout portion is provided so that the end portion of the sleeve portion forming portion does not hit the backrest forming portion top portion and the end portions do not touch each other, but it is not limited to this shape, The end can be cut into a suitable shape so that it does not hit.
[0019]
Accordingly, as shown in FIGS. 6 to 10, the seat portion forming portion, the backrest forming portion, the armrest portion, and the sleeve portion forming portion of the chair are the folds of the seat portion forming portion 1 and the armrest forming portion 12 and the sleeve portion forming portion 13. 9 and 11, a triangular armrest portion B and a sleeve portion forming portion 13 continuous to the armrest forming portion 12 and the sleeve portion forming portion 13 which are folded up and overlapped at the first fold 15 are formed. Assembled, the sleeve forming portion 13 is overlapped by the first fold mountain fold and the third fold 17 valley fold, the overlapped sleeve portion forming portion 13 is bent by the second fold 16, and the fold 16 is backrested. The sleeve portion C is assembled to the back surface forming portion 7 that covers the back surface of the backrest forming portion 5 by being fitted to the crease 11 of the forming portion 5 and folded into the back surface as a sleeve portion C. Since the overlapped sleeve portion forming portion is bent and applied to the back surface of the backrest forming portion and is held by the restraining forming portion of the back surface forming portion, the backrest forming portion can be reliably held upright.
[0020]
As shown in FIGS. 1 to 9, the front leg 4 and the rear leg 8 are configured so that the leg of the chair supports the seat forming part.
The front leg portion 4 includes a front surface forming portion 4a and side surface forming portions 14 provided on both sides of the front surface forming portion 4a via creases 10. A holding formation portion 22 that is continuous with the armrest formation portion 12 is integrally provided on a side portion of the side surface formation portion 14 via a fold line 21.
The fourth fold 20 is a fold that divides the armrest forming portion 12 and the holding formation portion 22, and the first fold 15 and the base point are the same, and the angle formed by the fourth fold and the first fold is the seat portion forming portion. The angle between the fold and the first fold is equal to the angle between the first fold and the fold 9 of the armrest. It can be bent according to the crease 9 of the part. The fourth fold 20 is symmetrical with the fold 9 of the seat forming portion 1 with the first fold 15 as the center, and an angle θ formed between the fold 9 of the armrest forming portion 12 and the seat forming portion 1 and the first fold 15. Provided at substantially the same angle (∠FEG = ∠GEI), a triangular holding portion 22 is formed between the fourth fold 20 and the fold 21 of the side surface forming portion 14. The bottom of the part forming part 1 can be held. That is, since a triangle is formed symmetrically on both sides with respect to the first fold line 15, when the mountain folds at the first fold line 15, the EI of the fourth fold line 20 that is the lower end of the armrest B is matched with the EF of the fold line 9. In addition, the fold line 21 can be folded, and the triangular holding portion 22 can be folded and brought into close contact with the lower surface of the seat portion forming portion 1 so as to hold the bottom portion of the seat portion forming portion 1.
[0021]
The structure of the leg part of the chair is such that the side part forming part of the front leg part 4 and the leg part forming part of the rear leg part 8 are combined in an X shape to support the bottom part of the seat part forming part. In the embodiment, the front surface forming portion 4 a of the front leg portion 4 is folded with respect to the seat portion forming portion 1, and the armrest forming portion 12 is folded at the first fold 15 with respect to the seat portion forming portion 1. 9 is folded in the valley, and the fourth fold 20 of the holding formation portion 22 is folded in accordance with the fold 9 of the seat formation portion 1 and folded to the bottom surface of the seat formation portion 1 to receive and support the bottom surface of the seat formation portion 1. To do. The rear leg portion 8 is composed of a lower portion of the back surface forming portion 7 and leg forming portions 40 such as plates or boxes on both sides thereof, and the leg forming portion is bent with respect to the back surface forming portion 7. The bottom surface of the seat forming portion 1 is received and supported. The side surface forming part of the front leg part 4 and the leg part forming part 40 of the rear leg part 8 are combined in an X shape to receive and hold the seat part forming part 1.
[0022]
The structure of the front leg portion 4 when the leg portion of the embodiment is X-shaped will be described.
The front leg portion 4 is provided with a rectangular side surface forming portion 14 on both sides of a square front surface forming portion 4 a via a fold line 10, and a fold line 21 between the side surface forming portion 14 and the holding formation portion 22 is perpendicular to the fold line 10. Then, bend it vertically to the floor. When the seat portion is inclined with the front portion of the seat portion forming portion 1 higher than the back, the fold line 21 is inclined with respect to the fold line 10.
The fourth fold line 20 has an angle (∠FEG = ∠GEI) equal to the angle θ formed by the first fold line 15 and the fold line 9 from the front end E of the fold line 9 of the armrest forming portion 12 to the end part I, and the fold line 21 An enveloping portion 22 that can be folded into the bottom surface of the seat forming portion 1 is formed with an angle (∠NEI) of θ4 as θ4. The angle θ4 varies depending on the magnitude of θ of the first fold 15 and the angle of the fold 21 of the side surface forming portion 14 with respect to the seat portion forming portion. In the embodiment, θ4 is about 35 degrees. When folding the holding portion 22 into the bottom surface of the seat forming portion, the folds 21 of the holding portion 22 are arranged obliquely with respect to the lower surface of the seat forming portion 1, and the side surface forming portions 14 on both sides are assembled in the crossing direction. It is done. In the embodiment, the side surface forming portions 14 on both sides are bent at the fold line 21 so that the side surface forming portions 14 can be assembled into the X shape with the leg portion forming portion 40 of the rear surface leg portion 8 described later.
Therefore, the side surface forming portions 14 on both sides of the front leg portion 4 and the leg portion forming portions 40 of the rear surface leg portion 8 which will be described later can be folded in the direction of the diagonal line connecting the four corners of the seat portion forming portion 1 and assembled and supported in the X shape. it can.
The structure of the front leg portion 4 is not limited to the above-described one. For example, the side surface forming portion can be formed in a box shape to support the seat portion forming portion, or it can be lower than the first fold 15. Can be a straight side surface forming portion (in this case, the fourth fold and the fold 21 are not provided). Or it can also be set as the structure which assembles the front leg part 4 in a box shape.
[0023]
The top portion 24 of the backrest forming portion 5 is provided with two folds 6 having an arbitrary width so as to be foldable into a U-shaped cross section, and a surface 7a and a rear surface covering the back surface of the backrest forming portion continuously with the backrest forming portion. A back surface forming portion 7 constituting the leg portion 8 is integrally provided. Also, as shown in FIGS. 4 and 5, the back surface forming portion 7 can be separated from the backrest forming portion 5 and joined to the upper end of the backrest forming portion 5 by a bonding means such as an adhesive to form a single paperboard. .
The back surface forming portion 7 is provided with a restraining portion D that covers the back surface of the backrest forming portion 5 through the crease 25 on both sides of the upper portion thereof and suppresses the sleeve portion forming portion 13, and the lower portion is the rear leg portion 8. The
On both sides of the back surface forming portion 7, a back surface side forming portion 26 is suppressed via a fold 25, and a sleeve forming portion that is folded into the back of the backrest forming portion via a fold 27a is suppressed above the back surface side portion forming portion 26. A leg forming part 40 that can be assembled in a box shape via a fold line 27b is formed on the part D and both sides of the lower part. The leg forming part 40 is formed by connecting an outer forming part 41, a lower forming part 48, an inner forming part 50, and an upper forming part 43 through a fold, and a side surface forming part 14 of the front leg part and a rear leg part. Among them, the outer forming portions 50 and 41 are provided with engaging portions that can be engaged with and disengaged from each other on the opposing end surfaces so that the front leg portion and the rear leg portion can be combined in an X shape. Is provided with a bottom forming portion 60 that fits over the front leg portion and the rear leg portion.
In the embodiment, a series of portions that constitute a restraining portion D such as a restraining formation portion 29 and the leg formation portions 40 on both sides of the rear leg portion 8 via the crease 25 on both sides of the vertically long rectangular rear portion formation portion 7. A rectangular plate surface is formed, and a cut 28 for separating the restraining formation portion 29 and the leg formation portion is provided, so that the restraining formation portion and the leg formation portion can be separately bent at the crease.
It is preferable that the rear leg portion 8 of the back surface forming portion 7 is folded and assembled into a box shape to make the leg solid, so that the seat forming portion can be stably held. In the embodiment, box-shaped leg forming portions 40 are formed on both sides of the rear leg 8. Furthermore, a bottom portion forming portion 60 is formed at the lower end of the back surface portion forming portion 7 so as to be fitted to the lower surface of the leg portion via a fold 61.
[0024]
A narrow back side part forming part 26 is formed on both sides from the upper part to the lower part of the back part forming part 7 through the crease 25 so as to be spaced apart from the backrest forming part. A rectangular plate surface is provided through the folds 27a and 27b, a cut-in formation portion 29 is formed to cut the slit 28 from the outer end of the plate surface to the back side portion formation portion 26 and to hold the sleeve portion C in the upper portion thereof. And the leg part formation part 40 assembled in a box shape is formed in the lower part.
A fold line 27a from the top of the back surface forming portion 7 to the top of the leg forming portion 40 is provided on the top of the back side forming portion 26 with an inclination substantially equal to the inclination angle of the backrest forming portion with respect to the seat forming portion. When the restraint forming portion 29 on the upper portion of the back surface forming portion 7 is folded into a U-shaped cross section at the folds 25 and 27a, the restraint forming portion 29 is substantially parallel to the inclined surface of the backrest forming portion with respect to the seat forming portion. Thus, the holding portion D is configured so that the sleeve forming portion can be held from the back side.
Further, the lower portion of the side portion forming portion 26 is formed in a wide band shape, and a fold line 27b with the lower leg portion forming portion 40 is provided perpendicular to the floor surface. The leg portion forming portion 40 is seated by the fold lines 25 and 27b. The seat portion forming portion 1 can be supported by being bent with respect to the portion forming portion at an angle that matches the angle of the side surface forming portion 14.
[0025]
The structure of the holding part D that holds down the sleeve part that covers the back surface of the backrest forming part will be described. The restraining forming portions 29 on both sides are provided with side portion forming portions 31 having substantially the same width as that of the side portion forming portion 26 through folds 30 having the same inclination as the folds 27a, and further, folds are formed at the ends. A bend forming part 33 is provided via 32. Further, the opposing restraint forming portion 29 is provided with the insertion piece 34 in the side portion forming portion 31 at one end, and the insertion hole 35 in the side portion forming portion 31 at the other end, and the insertion piece is inserted into the insertion hole. Assemble the holding part D.
Accordingly, as shown in FIG. 9, when the restraint forming portion 29 is folded into a U shape at the folds 25, 27 a, 30, and 32 to form the restraining portion D and applied to the backrest forming portion, the backrest forming portion A predetermined interval is provided between the back surface forming portions, and the sleeve portion folded into the back surface of the backrest forming portion can be held elastically in combination with the elasticity of the cardboard paper, and the backrest forming portion is supported and reinforced. Can do. In the embodiment, the case where the tip of the restraint forming portion is inserted and stopped by inserting the insertion hole and the insert piece into each other is shown, but the present invention is not limited to this, for example, the tips of the opposing restraint forming portions are mutually engaged. The structure can be made, or can be bonded and stopped.
[0026]
The structure of the rear leg portion 8 of the back surface forming portion 7 will be described. The rear leg portion 8 at the lower portion of the back surface forming portion 7 is provided with leg-shaped portion 40 of a box-shaped leg portion via folds 27b on both sides thereof, and the leg forming portion 40 is formed at the folds 25 and 27b. It can be bent at an arbitrary angle. The leg forming part 40 is assembled so that the side surface forming parts 14 on both sides of the front leg 4 are opposed to each other at the same height as the side forming parts 14 on both sides of the front leg 4. The box-shaped leg portion of the forming portion 14 and the rear leg portion 8 is a leg of the chair and a support leg for receiving the seat portion forming portion 1.
[0027]
In the embodiment, regarding a chair that is assembled by combining a front leg portion and an X shape by providing a box-shaped leg portion forming portion on both sides of the rear leg portion 8 when the leg portion holding the seat portion forming portion 1 is an X shape. explain.
An insertion piece 66 is provided at the lower end of the front surface forming portion 4 a of the front leg portion 4, a fold forming portion 68 is formed at the tip of the side surface forming portion 14 via a fold 67, and an insertion hole 69 is provided. Yes. The box-shaped leg forming part 40 on both sides of the rear leg part 8 includes the back side part forming part 26, a rectangular outer forming part 41 provided on the side surface thereof via a fold line 27b, and the outer forming part 41. An upper forming portion 43 provided through a fold line 42 and a fold forming portion 45 provided through the fold 44 in the upper forming portion 43, and an insertion piece 46 is formed at the tip thereof. Below the outer forming portion 41, a lower forming portion 48 through a crease 47, a rectangular inner forming portion 50 through a fold 49 in the lower forming portion 48, and a fold 51 in the inner forming portion 50. Thus, a bent forming portion 52 is formed. The inner forming portion 50 is provided with an insertion hole 53 into which the insertion piece 46 is inserted. The leg forming part 40 is formed in a box shape by bending the inner forming part 41, 50, the upper forming part 43, and the lower forming part 48 with a fold, and inserting the insertion piece 46 into the insertion hole 53 of the inner forming part 50. assemble.
In addition, the lower formation portion 48 is formed with an insertion hole 54 into which an insertion piece 63 of a bottom formation portion 60 described later is inserted. In the embodiment, the bend forming portion 45 and the insertion piece 46 are formed by the cut 28 on the plate surface, but are not limited thereto.
[0028]
The front leg portion 4 of the seat portion forming portion 1 and the rear leg portion 8 of the rear portion forming portion have an engaging portion 55 that can be engaged with and disengaged from each other on the opposite end faces in order to combine the legs in an X shape. Is provided.
A plurality of engagement pieces 56 are formed at regular intervals on the side end surfaces of the rectangular side surface forming portion 14 provided on both sides of the front leg portion 4 as an engagement portion 55 that combines the front and rear legs in an X shape. 8 are formed on the side end surfaces of the outer forming portion 41 and the inner forming portion 50 at regular intervals, and the engaging pieces 58 of the left and right inner forming portions 50 are opposed to each other. The engaging pieces 57 of the left and right outer forming portions 41 are fitted to the engaging pieces 56 provided on the side end surface of the side surface forming portion 14 of the front leg portion 4. It is formed in a staggered manner.
[0029]
The engaging piece 56 of the side surface forming portion 14 of the front leg portion 4 is formed with a convex piece (insertion piece) 56a that is cut into an arc shape on both sides, and a fitting groove 56b. Similarly, a convex piece (insertion piece) 57a and a fitting groove 57b are provided in 41, and a convex piece (insertion piece) 58a and a fitting groove 58b are provided in the inner forming portion 50 in the same manner. The positions of the protruding piece and the fitting groove are shifted so that they can be engaged with each other.
Therefore, the holding portion 22 of the armrest forming portion 12 is folded into the lower surface of the seat forming portion 1, and the leg forming portions 40 assembled in a box shape on both sides of the front leg portion 4 and the rear leg portion 8 are respectively formed. Bend diagonally along the diagonal line connecting the four corners of the seat portion forming portion 1, the convex piece 56a of the side surface forming portion 14 of the front leg portion is fitted into the fitting groove 57b of the outer side forming portion 41 of the rear leg portion, The protruding pieces 57a of the outer leg forming portions 41 of the rear leg portions are fitted to the fitting grooves 56b, and the protruding pieces 58a and the fitting grooves 58b of the inner leg forming portions 50 of the rear leg portions are similarly fitted to each other. Thus, the support legs of the front leg part 4 and the rear leg part 8 can be assembled and supported in the X shape with respect to the seat part forming part 1.
Since a convex piece and a fitting groove are integrally provided on the side plates of the side surface forming portion and the leg portion forming portion using cardboard or the like, it is convenient to assemble the chair with only the paperboard.
In addition, the coupling structure of the support legs of the front leg part and the rear leg part and the support legs of the rear leg part is not limited to this, and a coupling structure is appropriately provided on the opposing surface or bonded with an adhesive. Alternatively, it can be stopped with an adhesive tape or the like.
[0030]
Provided on the end surface of the back surface forming portion 7 is a bottom forming portion 60 that can cover the bottom surfaces of the front leg portion and the rear leg portion through a fold, and the bottom forming portion is attached to the bottom surfaces of the front leg portion and the rear leg portion. Make it possible. In the embodiment, a bottom forming portion 60 is provided at the lower end of the back surface forming portion 7 via a fold 61.
In the embodiment, the bottom portion forming portion 60 is a surface 62 formed on both sides in a V shape so as to cover the front leg portion and the rear leg portion to be combined with the X shape, and an insertion piece 63 is provided in the approximate center of the surface, and An insertion hole 65 into which an insertion piece 66 provided at the distal end of the front leg portion 4 is inserted is provided in the bending formation portion 64 at the distal end.
The side part forming part of the front leg part and the leg part forming part of the rear leg part are fitted with the projecting piece and the fitting groove, and the bottom part forming part 60 is put on the bottom surface of the combined front leg part and rear leg part. Since it fits, it can hold | maintain reliably, without removing a front leg part and a rear leg part, and it can sit down on a chair stably also with paperboard, such as corrugated paper. Since the bottom portion forming portion is integrally provided on the back portion forming portion using cardboard such as cardboard paper, the chair can be assembled by reinforcing the leg portion only with the paperboard.
In addition, although the bottom part formation part 60 was made into the shape matched with the bottom face of the leg part combined with X type, it is not restricted to this, For example, it can be made into a square etc. freely. In addition, although the bottom part formation part provided the insertion piece and made it the structure which inserts and couple | bonds with a leg part, it is not restricted to this, For example, it adheres with an adhesive agent to a leg part bottom face, or stops with an adhesive tape. You can also In consideration of the thickness of the paperboard, for example, for the mountain fold and the valley fold, the angles of all the folds such as the leg portion, the restraint forming portion, and the bottom portion forming portion are slightly corrected and matched.
[0031]
The assembly method of the assembly chair of the present invention described above will be described with reference to FIGS. 5 to 13. The seat formation portion 1 is bent at the crease 3 so that the backrest formation portion 5 stands up at a predetermined inclination angle, and the armrest formation portion 12. Is folded at the crease 9 of the seat part forming part 1, the sleeve part forming part 13 is bent backward at the crease 11, and the armrest forming part 12 and the sleeve part forming part 13 are folded at the first crease 15, The armrest part B and the continuous sleeve part C are assembled by valley folding at the third fold line 17 and superposed, and the overlapped sleeve part C is aligned with the inclined fold line 11 of the backrest forming part 5. Folded to the back surface, the restraint forming portion 29 of the back surface forming portion 7 is folded into a U shape at the crease to form the restraining portion D, and when this is applied to the backrest forming portion, it is predetermined between the backrest forming portion and the back surface forming portion. Spacing is set In combination with the elasticity of the cardboard paper, the sleeve forming portion folded on the back surface of the backrest forming portion is elastically held, and the front leg portion 4 is bent downward at the crease 2 with respect to the seat forming portion 1, The holding formation part 22 is bent at the fourth fold line 20 and folded to the lower surface of the seat formation part 1 to hold the bottom part. The leg forming portion 40 is formed by bending the outer forming portion 41, the inner forming portion 50, the upper forming portion 43, and the lower forming portion 48 with a fold, and the insertion piece 46 of the outer forming portion 41 is inserted into the insertion hole 53 of the inner forming portion 50. Are assembled into a box shape, and the side surface forming part 14 of the front leg part 4 and the leg part forming part 40 on both sides of the rear leg part 8 are respectively bent obliquely along diagonal lines connecting the four corners of the seat part forming part 1; The convex piece 56 a of the side surface forming portion 14 of the front leg portion 4 is fitted into the fitting groove 57 b of the outer side forming portion 41 of the rear surface leg portion 8, and the convex portion of the outer side forming portion 41 is fitted into the fitting groove 56 b of the side surface forming portion 14. The protrusions 58a and the fitting grooves 58b of the inner formation parts 50 and 50 facing each other and the rear leg part 8 are also fitted to each other in the same manner, so that the front part with respect to the seat part formation part 1 is fitted. The leg parts of the leg part 4 and the rear leg part 8 can be assembled and supported in an X shape. Then, the bottom forming portion 60 is bent with respect to the leg portion assembled in the X shape, and the insertion piece 63 is bent into the insertion hole 54 of the lower forming portion 48 of the rear leg portion 8 and the bent forming portion of the front leg portion 4. 68, and the insertion piece 66 at the lower end of the front surface forming portion 4a of the front leg portion 4 is inserted into the insertion hole 65 of the bottom portion forming portion 60 to complete the assembly of the leg portions of the chair. . The bottom forming part 60 is put on the leg part assembled in the X shape, and it is possible to prevent the leg part assembled in the X shape from coming off while sitting on the seat and applying a load. Can sit safely.
As shown in FIGS. 1 to 3, a single piece of rectangular cardboard can be cut and produced without waste, so there is very little waste of cut pieces of cardboard, etc. Since it is corrugated paper, it is convenient for storage, transport, display, etc. In addition, since it is only necessary to assemble one piece of corrugated paper, it can be quickly assembled and used in the event of an emergency such as a disaster, which is convenient and can be stocked for disasters. In addition, the armrest, backrest forming part, X-shaped leg part, front leg part, rear leg part, etc. have creases on the outer surface, but the cut surface is hardly exposed to the outside, so the appearance of the chair can be made very beautiful, Value can be improved. In the embodiment, since the assembly chair is assembled without using an adhesive or the like, disassembly is easy, it is easy to take out to a collection company, etc., and it is suitable for recycling.
[0032]
Although an example of the embodiment of the present invention has been described above, the present invention is not limited to the embodiment and it is needless to say that the present invention can be implemented in various forms without departing from the gist of the present invention. . The paperboard of the present invention includes a foldable board material such as a synthetic resin film.
[0033]
【The invention's effect】
The assembly chair according to the present invention is formed by corrugated cardboard, cardboard, or the like, with the first fold of the armrest forming portion and the sleeve portion forming portion folded in a mountain, and the third fold folded with a valley fold, and the armrest portion and the sleeve portion forming portion. Can be assembled by folding the sleeve portion forming portion into the back surface of the backrest forming portion at the second fold and holding the sleeve portion forming portion at the back portion forming portion. Since the armrests can be easily assembled on both sides of the seat forming part and the sleeve forming part is pressed against the back of the backrest forming part and restrained by the back part forming part, the armrest part and the backrest forming part can be reinforced firmly. This assembly chair can be formed without waste using a piece of cardboard, such as corrugated cardboard, and it is convenient because it can be transported, stored, displayed, etc. without any waste of resources and stacked in a plate is there.
[0034]
In the assembly chair of the present invention, the holding portion is foldable on the lower surface of the seat forming portion through the fourth fold in the armrest forming portion so that the seat forming portion is held in the holding forming portion and the leg portion is strong. Can be assembled.
[0035]
In addition to the effects described above, the assembly chair according to the present invention can hold the seat forming portion by combining the front leg portion and the rear leg portion in the X shape on the lower surface of the seat forming portion, so that the chair can be assembled firmly. The rear leg portion provided on the back surface forming portion can be folded and assembled into a box shape to make the leg portion solid and stably hold the seat portion forming portion. In addition, since the engaging portions that can be engaged with and disengaged from each other are provided on the front leg portions on the front surface of the seat portion forming portion and the opposite end surfaces of the rear leg portions provided on the rear surface forming portion, the front and rear leg portions are engaged. It can be stopped and securely connected, and the seat can be supported stably.
Furthermore, since the bottom portion forming portion that can cover the bottom surfaces of the front leg portion and the rear leg portion is provided, the front and rear leg portions can be reliably connected without being detached, and the assembly chair can be made strong.
[Brief description of the drawings]
FIG. 1 is a development view of an assembly chair according to the present invention.
FIG. 2 is an enlarged development view of a front portion of the chair.
FIG. 3 is an enlarged development view of a rear portion of the chair.
FIG. 4 is a development view in which front and rear portions constituting an assembly chair of another embodiment are separated.
FIG. 5 is a development view in which front and rear portions of the chair are coupled.
FIG. 6 is a perspective view of a state in which the front part and the rear part of the chair are assembled.
FIG. 7 is a perspective view of a state in which the front part and the rear part of the chair are assembled.
FIG. 8 is an enlarged perspective view of the back side of the seat portion forming portion, the front leg portion, the backrest forming portion, and the sleeve portion forming portion of the chair.
FIG. 9 is an enlarged perspective view of a back surface forming portion and a rear leg portion of the chair.
FIG. 10 is a perspective view of the assembly chair in an assembled state.
FIG. 11 is a plan view of the assembly chair.
FIG. 12 is a side view of the same.
FIG. 13 is a bottom view of the chair shown excluding the bottom forming portion.
FIG. 14 is a bottom view of a chair in which a leg portion is covered with a bottom portion forming portion.
[Explanation of symbols]
1 Seat formation part
4 Front legs
5 Backrest forming part
7 Back side forming part
8 Rear legs
9 Crease
10 crease
11 Fold
12 Armrest forming part
13 Sleeve forming part
14 Side surface forming part
15 First crease
16 Second crease
17 3rd fold
20 4th fold
21 Crease
22 Holding formation part
29 Suppression forming part
40 Leg forming part
41 Outside forming part
50 Inner forming part
55 engaging part
56 Engagement piece
57 Engagement piece
58 engagement piece
60 Bottom forming part
A Paperboard
B Armrest
C Sleeve
D restraining part

Claims (3)

板紙製組み立て椅子であって、該板紙製組み立て椅子は、方形状座部形成部と、該座部形成部の後端に折り目を介して設けられた背もたれ形成部と、該背もたれ形成部の頂部に折り目を介して設けられた背面部形成部と、前記座部形成部の両側部に折り目を介して設けられた肘掛け形成部および該肘掛け形成部と連続するとともに、前記背もたれ形成部の両側部に折り目を介して設けられた袖部形成部とを備え、
該それぞれの肘掛け形成部およびそれぞれの袖部形成部は、前記座部形成部との折り目の前端を基点として前記袖部形成部の後部側端まで斜めに延びる山折り可能な第１折り目（１５）と、前記座部形成部と前記肘掛け形成部との折り目の後端を基点として該折り目に対して９０度ないし９０度より所定角度大きい角度にて肘掛け形成部の後部側端に延びるとともに前記第１の折り目と交差し交差部において屈曲し肘掛け形成部の後部側端に到達する第２の折り目（１６）と、該第２の折り目と同じ点を基点として前記袖部形成部の後端まで延びる谷折り可能な第３折り目（１７）とを備えるとともに、前記第３の折り目は、前記背もたれ形成部と前記袖部形成部との折り目と該第３の折り目と基点を同じとする第２の折り目とが形成する角度を２分するものであり、前記第１の折り目は、屈曲する前記第２の折り目を屈曲点において２分するものであり、
前記肘掛け形成部と袖部形成部とを第１折り目で山折りし、第３折り目で谷折りして肘掛け部を構成するとともに袖部を第２折り目で背もたれの背面に折り込み、背もたれ形成部に対して背面部形成部を折り返して袖部を抑えることにより組み立て可能であることを特徴とする組み立て椅子。An assembly chair made of paperboard, the assembly chair made of paperboard comprising a square seat portion forming portion, a backrest forming portion provided at a rear end of the seat portion forming portion via a fold, and a top portion of the backrest forming portion A back portion forming portion provided through a fold, an armrest forming portion provided on both sides of the seat portion forming portion via the fold and the armrest forming portion, and both sides of the backrest forming portion And a sleeve forming portion provided through a fold,
The respective armrest forming portions and the respective sleeve portion forming portions are first foldable foldable ridges (15) extending obliquely from the front end of the fold with the seat portion forming portion to the rear side end of the sleeve portion forming portion. And the rear end of the fold between the seat portion forming portion and the armrest forming portion as a base point and extending to the rear side end of the armrest forming portion at an angle greater than 90 degrees to 90 degrees with respect to the fold. A second fold (16) that intersects the first fold and bends at the intersection and reaches the rear side end of the armrest forming portion; and a rear end of the sleeve portion forming portion based on the same point as the second fold A third fold (17) that can be folded into a valley, and the third fold has the same fold as that of the back fold forming portion and the sleeve forming portion, and the same base point as the third fold. Corner formed by two folds The is intended to 2 minutes, the first fold is to 2 minutes at the bent point of the second fold to bend,
The armrest forming portion and the sleeve portion forming portion are mountain-folded at the first fold, the valley fold is formed at the third fold to form an armrest portion, and the sleeve portion is folded at the back of the backrest at the second fold, On the other hand, the assembly chair can be assembled by folding the back surface forming portion and suppressing the sleeve portion. 座部形成部の前端に折り目を介して設けられた前面脚部を構成する前面形成部と、該前面形成部の両側部に折り目を介して設けられた側面形成部と、座部形成部の両側部に折り目を介して設けられた肘掛け形成部と連続する抱え込み形成部とを備え、
それぞれの肘掛け形成部に連続する抱え込み形成部は、前記座部形成部との折り目の先端を基点として抱え込み形成部の側端まで斜めに延びる第４折り目（２０）と前記側面形成部の折り目（２１）との間に形成し、
第４折り目は第１折り目と基点を同じとし、第４折り目と第１折り目とが形成する角度は座部形成部の折り目と第１折り目とのなす角と等しい角度であり、
該抱え込み形成部を第４折り目で折り曲げて座部形成部の底部を抱え込み可能であることを特徴とする請求項１記載の組み立て椅子。A front surface forming portion constituting a front leg provided at the front end of the seat portion forming portion via a fold, a side surface forming portion provided on both sides of the front surface forming portion via a fold, and a seat portion forming portion The armrest forming part provided through the folds on both sides and the holding formation part that is continuous,
The holding formation part continuous to each armrest forming part includes a fourth fold (20) extending obliquely to a side end of the holding formation part from the fold end of the seat part forming part and a fold ( 21),
The fourth fold has the same base point as the first fold, and the angle formed by the fourth fold and the first fold is the same as the angle formed by the fold and the first fold of the seat portion forming portion,
The assembly chair according to claim 1, wherein the holding portion can be folded at a fourth fold to hold the bottom portion of the seat forming portion. 板紙製組み立て椅子であって、該板紙製組み立て椅子は、方形状座部形成部と、該座部形成部の後端に折り目を介して設けられた背もたれ形成部と、該背もたれ形成部の頂部に折り目を介して設けられた背面部形成部と、前記座部形成の両側部に折り目を介して設けられた肘掛け形成部および該肘掛け形成部と連続するとともに、前記背もたれ形成部の両側部に折り目を介して設けられた袖部形成部とを備え、
該座部形成部の前端に折り目を介して設けられた前面脚部を構成する前面形成部と、該前面形成部の両側部に折り目を介して設けられ、かつ端面に係合部を有する側面形成部と、座部形成部両側部に折り目を介して設けられた肘掛け形成部と連続するとともに該側面形成部に折り目を介して設けられた抱え込み形成部とを備え、
前記それぞれの肘掛け形成部およびそれぞれの袖部形成部は、前記座部形成部との折り目の前端を基点として前記袖部形成部の後部側端まで斜めに延びる山折り可能な第１折り目（１５）と、前記座部形成部と前記肘掛け形成部との折り目の後端を基点として該折り目に対して９０度ないし９０度より所定角度大きい角度にて肘掛け形成部の後部側端に延びるとともに前記第１の折り目と交差し交差部において屈曲し肘掛け形成部の後部側端に到達する第２の折り目（１６）と、該第２の折り目と同じ点を基点として前記袖部形成部の後端まで延びる谷折り可能な第３折り目（１７）とを備えるとともに、前記第３の折り目は、前記背もたれ形成部と前記袖部形成部との折り目と該第３の折り目と基点を同じとする第２の折り目とが形成する角度を２分するものであり、前記第１の折り目は、屈曲する前記第２の折り目を屈曲点において２分するものであり、
前記それぞれの肘掛け形成部に連続する抱え込み形成部は、前記座部形成部との折り目の先端を基点として肘掛け形成部の側端まで斜めに延びる第４折り目（２０）と前記側面形成部の折り目（２１）との間に形成し、
第４折り目は第１折り目と基点を同じとし、第４折り目と第１折り目とが形成する角度は座部形成部の折り目と第１折り目とのなす角と等しい角度であり、
前記背面部形成部の両側に折り目を介して設けられた背面側部形成部と、該背面側部形成部の上部に折り目を介して設けられた前記袖部形成部を抑える抑え形成部と、該背面側部形成部の下部に折り目を介して設けられる箱状に組み立てる後面脚部とを備え、該後面脚部は端面に前記前面脚部の側面形成部の係合部と係合可能な係合部を有する外側形成部と、該外側形成部に折り目を介して設けられた上側形成部と下側形成部と、該下側形成部に折り目を介して設けられ、かつ端面に前記内側形成部の係合部と係合可能な係合部を有する内側形成部とからなり、前記背面形成部の下端には折り目を介して設けられた前記前面脚部と後面脚部の底部に被せる底部形成部を備えたことを特徴とする組み立て椅子。An assembly chair made of paperboard, the assembly chair made of paperboard comprising a square seat portion forming portion, a backrest forming portion provided at a rear end of the seat portion forming portion via a fold, and a top portion of the backrest forming portion A back portion forming portion provided through a fold line, an armrest forming portion provided through a fold line on both sides of the seat portion formation and the armrest forming portion, and on both sides of the backrest forming portion. A sleeve forming portion provided via a fold,
A front surface forming portion constituting a front leg provided at the front end of the seat portion forming portion via a fold, and a side surface provided with a fold on both sides of the front surface forming portion and having an engaging portion on the end surface A formation part, and a holding formation part that is continuous with an armrest formation part provided on both sides of the seat part formation part via a fold and provided on the side surface formation part via a fold,
Each of the armrest forming portions and each of the sleeve portion forming portions has a first foldable fold (15) extending obliquely from the front end of the fold with the seat forming portion to the rear side end of the sleeve forming portion. And the rear end of the fold between the seat portion forming portion and the armrest forming portion as a base point and extending to the rear side end of the armrest forming portion at an angle greater than 90 degrees to 90 degrees with respect to the fold. A second fold (16) that intersects the first fold and bends at the intersection and reaches the rear side end of the armrest forming portion; and a rear end of the sleeve portion forming portion based on the same point as the second fold A third fold (17) that can be folded into a valley, and the third fold has the same fold as that of the back fold forming portion and the sleeve forming portion, and the same base point as the third fold. 2 folds and form Is intended to 2 minutes in degrees, the first fold is to 2 minutes at the bent point of the second fold to bend,
The holding formation portion that is continuous with each of the armrest formation portions includes a fourth fold (20) that extends obliquely to a side end of the armrest formation portion with a fold end of the seat portion formation portion as a base point, and a fold of the side surface formation portion (21)
The fourth fold has the same base point as the first fold, and the angle formed by the fourth fold and the first fold is the same as the angle formed by the fold and the first fold of the seat portion forming portion,
A back side forming part provided on both sides of the back side forming part via a crease, and a restraining forming part for suppressing the sleeve part forming part provided on the top of the back side part forming part, A rear leg portion assembled in a box shape provided through a crease at a lower portion of the rear side portion forming portion, the rear leg portion being engageable with an engaging portion of the side surface forming portion of the front leg portion on the end surface An outer forming portion having an engaging portion, an upper forming portion and a lower forming portion provided on the outer forming portion via a fold, and a fold formed on the lower forming portion and the inner surface on the end surface An inner forming part having an engaging part engageable with the engaging part of the forming part, and covers the bottom of the front leg part and the rear leg part provided through a fold at the lower end of the back surface forming part. An assembly chair comprising a bottom forming portion.
JP2003187149A 2003-06-30 2003-06-30 Knockdown chair Pending JP2005021199A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2245965A1 (en) * 2009-04-29 2010-11-03 Mindfolding ApS A blank for a foldable chair
KR101109687B1 (en) 2009-12-23 2012-01-31 (주) 어퓨커뮤니케이션즈 Potable folded chair having a back

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2245965A1 (en) * 2009-04-29 2010-11-03 Mindfolding ApS A blank for a foldable chair
KR101109687B1 (en) 2009-12-23 2012-01-31 (주) 어퓨커뮤니케이션즈 Potable folded chair having a back

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