JP3802436B2

JP3802436B2 - Folding bed

Info

Publication number: JP3802436B2
Application number: JP2002065837A
Authority: JP
Inventors: 徹原島
Original assignee: ATECS CORP
Current assignee: ATECS CORP
Priority date: 2002-03-11
Filing date: 2002-03-11
Publication date: 2006-07-26
Anticipated expiration: 2022-03-11
Also published as: JP2003259940A; TW588614U

Description

【０００１】
【発明の属する技術分野】
本発明は、寝具から立上がる宮部を具え、かつ垂直な折畳み状態においてはベッドの宮部の突出を無くし取り扱い性を向上した折畳みベッドに関する。
【０００２】
【従来の技術】
例えば図２３に示すように、逆Ｖ字状に、例えば布団、その他の寝具ａを敷いたまま垂直に折畳みし移動可能とする折畳みベッドが知られている。この折畳みベッドは、図２２に例示するように、寝具（マット）の半体（マット半体）ａ１，ａ２をそれぞれ載置しかつ各一端側に支脚部ｂ１，ｂ２を設けた載置枠を有する第１，２のベッド枠体ｄ１，ｄ２の他端側を、中間支脚部ｅを具備する継ぎ部材ｆにより連結したベッド基体を具える。
【０００３】
なお図示例では、前記第１のベッド枠体ｄ１の載置枠、支脚部ｂ１、中間支脚部ｅ、及び前記第２のベッド枠体ｄ２の載置枠、支脚部ｂ２、中間支脚部ｅはともに連結ロッドｈ、ｈによりそれぞれ連結されて支脚上方部分で平行クランク機構を構成し、かつ各支脚部ｂ１，ｂ２は車輪ｋを具えた移動脚であることにより、各支脚部ｂ１，ｂ２を近づける方向に折り畳むことによって、図２３のように折畳みベッドは寝具ａとともに逆Ｖ字状に折り畳まれる。又折畳みベッドは重量体であるために、ベッド及び寝具の重量により常にベッドを水平に展開する力が作用しているために、例えば引張バネを用いた引起こし手段ｉを用いて折畳み力を補助している。
【０００４】
【発明が解決しようとする課題】
しかしながら、通常のベッドにおいては、枕、書籍、眼鏡など、就寝に際して使用、乃至使用しない用品のベッドからの脱落を防ぎ、用品を収納し、又ときに背もたれとして用いられる宮具が寝具から突出して設けられるが、折畳みベッドにおいて、例えば図２２に示す宮部ｍを設けるときには、折畳み時においては、図２３で一点鎖線で示すように、この宮部ｍが支脚部ｂ１から略水平方向に突出し、収納に際して嵩張るとともに、ときに移動、歩行の障害となり取り扱い性に劣る。
【０００５】
本発明は、ベッド宮部をなす宮付き受具の立上げ部の高さを減じうることにより、折畳み状態においても、この立上げ部が水平に突出することを防ぎ、取り扱い性を高めうる折畳みベッドの提供を目的としている。
【０００６】
【課題を解決するための手段】
本発明のうち請求項１記載の発明は、寝具を載置する第１の載置枠の一端側に第１の支脚部を設けた第１のベッド枠体、寝具を載置する第２の載置枠の一端側に第２の支脚部を設ける第２のベッド枠体、及び第１の載置枠と第２の載置枠との向き合う他端を、該第１、第２の載置枠が展開される展開状態と、第１、２の支脚部が近づき逆Ｖ字状の垂直状態との間で折り畳み展開可能に継ぎかつ中間支脚部を有する継ぎ部材からなるベッド基体を具えるとともに、
前記第１のベッド枠体は、前記第１の載置枠の前記一端で立上がり前記寝具のずれを防ぐ受け部と、展開状態において該受け部から立ち上がることによりベッド宮部をなす立上げ部とからなる宮付き受具を具えるとともに、前記立上げ部は、傾動ロック手段を有して前記受け部に取付けられ、
前記傾動ロック手段は、中心孔、べッド前側に向いて開口する前スロット部、及び垂直線に対して後に傾いて開口する立上がりスロット部を有するとともに、前記受け部に設けた下ロック金具と、縦の長孔、及び前記前スロット部及び立上がりスロット部に嵌着しうる係止ピンを有するとともに、前記立上げ部に設けた上ロック金具と、前記中心孔及び長孔に挿通して両者を継ぐ挿通軸とからなることを特徴とする折畳みベッドである。
【０００７】
又請求項２に係る発明は、前記下ロック金具は、略円板状をなす基板部を設けるとともに、この基板部の外周縁に前記前スロット部、及び立上がりスロット部が設けられ、前スロット部と、立上がりスロット部との間の外周縁を、曲率半径が、その外側の外周縁の曲率半径よりも小としたことを特徴とし、かつ請求項３の発明は、前記宮付き受具が、前記第１，第２のベッド枠体が前記逆Ｖ字の垂直に折り畳まれた状態において、前記立上げ部が寝具に沿って、立ち上がることを特徴としている。
【０００８】
さらに請求項４に係る発明は、前記宮付き受具が、長軸材を用いて形成した受け部形成用の受け部枠体、及び立上げ部形成用の立上げ部枠体からなる受具基枠と、この受具基枠を封入するカバー体とからなることを特徴とし、かつ請求項５に係る発明は、前記寝具が、各載置枠に載置されるマット半体と、これらのマット半体を連続して覆うシート体とからなり、かつ該シート体は、第１，２の載置枠のマット半体の上面をともに覆う基部と、その両側で垂下する側垂れ部と、該側垂れ部とは分離され前記第２の載置枠の前記マット半体のずれを防ぐ受具を前記第２の載置枠上のマット半体の一端側端面とともに覆う端垂れ部と、前記側垂れ部に連続し前記第１の載置枠上のマット半体の一端側端面で垂下する保持垂れ部とからなることを特徴とする。
【０００９】
【発明の実施の形態】
以下本発明の実施の一形態を図面に基づき説明する。図１（図２に示すベッド床板２２を省略している）〜図３において、本発明の折畳みベッド１は、第１の載置枠３Ａの一端Ｓ１に第１の支脚部４Ａを設けた第１のベッド枠体５Ａ、第２の載置枠３Ｂの一端に第２の支脚部４Ｂを設ける第２のベッド枠体５Ｂ、及び第１の載置枠３Ａと第２の載置枠３Ｂとの向き合う他端Ｓ２を折り畳み可能に継ぎかつ中間支脚部７を有する継ぎ部材８からなるベッド基体９を具え（なお第１，第２と区別するときにはＡ，Ｂを数字末尾に付すが、区別する必要のないときは数字末尾のＡ，Ｂを省略する）、かつ前記第１のベッド枠体５Ａには、前記第１の載置枠３Ａの前記一端に宮付き受具１０を設けている。
【００１０】
前記第１，２の載置枠３Ａ，３Ｂは、パイプ材からなりかつベッド中心線Ｘ方向にのびる下開放の溝型材からなる補強材２１ａと、その両側の板受け材２１ｂ，２１ｂとを配した略矩形の周囲枠２１に、図２に示すように、ベッド床板２２・・・を前記板受け材２１ｂ，２１ｂに架け渡して固定することにより形成され、本形態では、各載置枠３には、マットの半分であるマット半体２Ａ，２Ｂと、これらのマット半体２Ａ，２Ｂとを連続して覆うシート体２Ｃとからなる寝具２を載置しうる。
【００１１】
また前記第１，２の支脚部４Ａ，４Ｂは、各載置枠３の前記周囲枠２１の側枠部２１ｃの前記各一端Ｓ１（前記のように支脚部４が取り付けられる側であって、ときに各後側と称する）側の近傍に枢着される（なお、ベッド中心線Ｘの両側方向を左右ということがある）。
【００１２】
この第１，２の支脚部４Ａ，４Ｂは、垂直な支柱部２３ａとその下端で一端Ｓ１側にのびる延長部とからなる左右のＬ字枠２３と、その間を連結する継ぎ材２４と、継ぎ材２４の中央部で他端Ｓ２側（前側）に小長さで折れ曲がる補助材２５を設けた支柱基体を具え、かつ前記延長部、補助材２５の先端にキャスターを設けている。
【００１３】
また前記各支柱部２３ａの上方には、図４に示すように、該支柱部２３ａの外側面の上取付金具２６と、内側面で取り付く下取付金具２７とが上下に固着される。上取付金具２６、下取付金具２７は前記一端Ｓ１側、即ち後側に突出しており、上取付金具２６の突出端で、前記各左右の側枠部２１ｃの内面をピンｐを用いて傾動可能に枢着している。
【００１４】
また前記第１，２の載置枠３Ａ，３Ｂの前記他端Ｓ２側には図５に示すように、前記側枠部２１ｃを延長して周囲枠２１の前枠部２１ｅを越えて突出する突出部２１ｄを形成し、この突出部２１ｄ，２１ｄを、連結金具２９によって向き合わせてかつ間隙を隔てて前記折畳み状態に折れ曲り可能に枢着する。
【００１５】
左右の連結金具２９は、結合軸３０により結合されるとともに、この結合軸３０に前記中間支脚部７、７を垂下し、かつこの左右の中間支脚部７，７間を、図１に示すように中央で上に折れ曲がる隆起部３３を有する脚台枠部３４により連結することによって前記継ぎ部材８を構成している。なお連結金具２９はカバー３５によって覆うことにより見栄えと安全性とを向上する（なお図１１に例示するように、脚台枠部３４は中間支脚部７の下端よりも上方で中間支脚部７，７間に間に架け渡すこともできる）。
【００１６】
さらに本形態では、前記中間支脚部７には、前記下取付金具２７（図４）の突端の透孔３７ａと同高さに透孔３７ｂを有する取付け金具３６を設け、かつ透孔３７ａ，３７ｂ間を連結ロッド１９で連結することにより、第１，２の載置枠３Ａ，３Ｂにおいて、各載置枠３と、連結ロッド１９と、支脚部４の上方部分、中間支脚部７の上方部分とによってそれぞれ平行クランク機構を形成している。これにより、図１９、２０に示すように、中間支脚部７、支脚部４の向きを一定、例えば垂直に保持しつつ折畳みできる。なお、第１，又は第２の載置枠３Ａ，３Ｂの一方のみを平行クランク機構とすることができ、また、平行クランク機構を用いない種々な折畳みベッドを採用しうる。
【００１７】
又本形態では、図１、図３に略示する引起こし手段１７を用いて折畳みを補助している。この引起こし手段１７は、図６に示す、前記載置枠３の前記補強材２１ａで固定され、前記他端Ｓ２から離れて固定された軸受け金具で枢支される前記滑車１７Ａと、前記中間支脚部７の前記隆起部３３に一端が固定されかつ前記滑車１７Ａ上面に巻掛されるひも状体１７Ｂと、このひも状体１７Ｂの他端に結合されるコイルバネ（ゴム体など他の弾性材も利用できる）などの弾性材１７Ｃとからなる引張部材１７Ｄとを有し、この引張部材１７Ｄの端部は載置枠３の適所で固定される。
【００１８】
なお滑車１７Ａは、前記ひも状体１７Ｂの一端を、前記隆起部３３に取付けることにより該ひも状体１７Ｂの垂直に対してなす角度θが、展開状態において、ベッドを側面視して３０〜６０゜、好ましくは４０〜５５゜程度、本形態では約４５゜となるように位置決めしている。前記ひも状体１７Ｂ及び弾性材１７Ｃは図７に示すように補強材２１ａの溝部を通ることにより、視野から隠し、見栄えを高めうる。
【００１９】
このような引起こし手段１７は、ベッドを折り畳むための引起こしモーメントＭ２変化を好ましいものとなしうる。即ち、図８（ａ）に示すように、滑車を用いることなく、引張部材を、中間支脚部ｐの下方と、載置枠ｑの後端との間で直接架け渡した場合では、ベッド枠体ｒ，ｒを引き起こすモーメント（以下引起こしモーメントＭ１という）は、引張部材のバネ力Ｔを仮に一定としたとき、図８（ｂ）に示すごとく、前記載置枠の水平な展開状態からの起きあがりの角度をα、引張部材の水平状態からの傾斜角をβ（下向きを正）とし、かつ載置枠の長さをＡ、中間支脚部ｐが垂直状態を保持されるとするとき、概略的に、Ｍ１＝ＴＡsin （α＋β）（αを折畳み角度という）として求めることができ、その変化を図１０の破線で示すように、（α＋β）が実質的に０゜（α＝９０゜、β＝−９０゜）となる折畳み状態では引起こしモーメントＭ１は０に近づく。なおベッド、寝具重量による負のモーメント、折畳みに伴うバネ長さの減少によるバネ力の低減を考慮するとき、全体として折畳み角度αが大になるに従い、載置枠の手による引き寄せが必要となる。
【００２０】
これに対して、本形態の引起こし手段１７では、載置枠３の前端と滑車１７Ａとの間の距離をＢとしたとき、引起こしモーメントＭ２はＭ２＝ＴＢsin （α＋β）であり、折畳み角度αが０゜（水平状態）から徐々に増大し、ひも状体１２と載置枠３とが実質的に直角となるαが９０度となる折畳み状態では、βは０、即ちsin （α＋β）が１に近づき、結果的に、図１０（定性的に示している。）の実線で示すごとく、折畳み角度が増すに従い引起こしモーメントＭ２が増加することとなり、作動初期は勿論、折畳み状態においても比較的大きい引起こしモーメントＭ２を発揮させることが従来のものに比して容易となり、展開状態においても自然に折畳み可能な持ち上げ力を作用させておくこともできる。
【００２１】
このためには、本形態においては、図４に示すように、第１の載置枠３Ａと第１の支脚部４Ａの展開状態において、前記周囲枠２１を貫通する挿通部４２と、前記支柱部２４ａに穿設した係止部４３とを位置合わせ可能とし、かつ位置合わせ状態において係止金具４５を挿入することにより浮き上がりを防止する浮上がり防止手段１８を設けている。なお係止金具４５は吊下げ具４６を用いて適宜吊下される。なおこの浮上がり防止手段１８は、前記第１の載置枠３Ａと第１の支脚部４Ａの他、前記第２の載置枠３Ｂと第２の支脚部４Ｂ、又は第１の載置枠３Ａと第２の載置枠３Ｂとの少なくとも一方と前記中間支脚部７とを回動不可に固定するものであれば多種のものを選択できる。
【００２２】
前記宮付き受具１０は、図１〜図３，図１１，図１２に示すように、第１の載置枠３Ａの後端に設けられ、又第２の載置枠３Ｂの後端には、寝具２であるマット半体２Ｂのずれ落ちを防ぐ受具１２を設けている。
【００２３】
前記宮付き受具１０は、寝具２のずれを防ぐ受け部１０Ａと、展開状態において該受け部１０Ａから立ち上がることによりベッド宮部をなす立上げ部１０Ｂとからなり、かつ前記立上げ部１０Ｂは、前記のように、寝具２からの高さを減じる高さ変化機構１３を有して前記受け部１０Ａに取付けられるとともに、この宮付き受具１０は、受具基枠１５と、この受具基枠１５を覆うカバー体１６とからなる。
【００２４】
前記受具基枠１５は、図１１に詳示するように、前記受け部１０Ａを構成するための受け部枠体１５Ａと、この受け部枠体１５Ａに前記高さ変化機構１３を介して連結されかつ前記立上げ部１０Ｂを構成するための立上げ部枠体１５Ｂとからなる。この受け部枠体１５Ａは、図４に一部を示すごとく、前記周囲枠２１の後枠部２１ｆのスペーサ２１ｇにより該周囲枠２１と間隙ｇを隔てて固定され前記後枠部２１ｆに平行な角筒体からなる取付軸１５ａを具える。
【００２５】
又受け部枠体１５Ａは、前記取付軸１５ａの両端と、その両端部で立設され、前記受け部１０Ａと略同高の立枠材１５ｂ上端との間を前記両側に向かって突出する左右のＵ字状枠１５ｃで結合し、かつ立枠材１５ｂ，ｂ間に横架材１５ｄを架設している。
【００２６】
又前記立上げ部枠体１５Ｂは、前記立枠材１５ｂの上方に前記高さ変化機構１３を介在させて一端を結合される支持軸１５ｆ，１５ｆの前記一端の外側面、他端間に、前記両側に向かって突出する左右のＵ字部を有する継ぎ材１５ｇを設け支持軸１５ｆ，１５ｆの上端を連結している。なお、受け部枠体１５Ａ、立上げ部枠体１５Ｂは、また軸乃至筒状体の折曲げ体の他、板状の部材を用いるなど種々な構成となしうる。
【００２７】
前記高さ変化機構１３は、前記立上げ部１０Ｂを、前記受け部１０Ａに対して立上がり状態で拘束するとともに、該立上げ部１０Ｂが前記寝具２に沿う倒れ状態に倒動することにより前記立上げ部１０Ｂの高さを減じ、本形態では前記立上げ部１０Ｂを、立上がり状態と倒動状態との間で傾動させる傾動ロック手段１４として構成されている。なお前記立上げ部１０Ｂを、前記受け部１０Ａに挿入させて伸縮する形式の前記高さ変化機構１３など、折畳み状態において前記立上げ部１０Ｂを折畳み体から突出しなければ、乃至突出量を抑制できれば種々のものを利用できる。
【００２８】
前記傾動ロック手段１４は、図１３〜図１５に示すように、前記受け部枠体１５Ａの立枠材１５ｂ上端に溶着される下ロック金具５１と、立上げ部枠体１５Ｂの前記支持軸１５ｆ下端に溶着される上ロック金具５２と、両者を継ぐ挿通軸５４とからなる。また前記下ロック金具５１は、前記立枠材１５ｂ内に挿入しうる胴部の上端に略円板状をなす基板部を設け、この基板部には、中心孔５５ａと、ベッド前側に向いて水平に開口する前スロット部５５ｂと、垂直線に対して後ろに約５〜２０゜、好ましくは５〜１５゜、本例では１０゜で傾いて開口する立上がりスロット部５５ｃとを外周縁に設けている。なお前記前スロット部５５ｂと、立上がりスロット部５５ｃとの間の外周縁を、曲率半径Ｒ１が、その外側の外周縁の曲率半径Ｒ２よりも小とした案内部５５ｄとしている。
【００２９】
さらに前記上ロック金具５２も、前記支持軸１５ｆに挿入されかつ溶着される胴部の下端に略円板状をなす基板部を設けており、この基板部には、その中心から図において下方向にのびる長孔５５ｆを穿設し、かつその上方には前記前スロット部５５ｂと、立上がりスロット部５５ｃとに半径方向中心側への移動により嵌着しうる係止ピン５５ｇとを設けている。
【００３０】
前記挿通軸５４は、頭部５４ａに、前記長孔５５ｆと、中心孔５５ａとをカラー５４ｂを介して挿通する軸部５４ｃと、ネジ部５４ｄとを連設しこのネジ部５４ｄをナット止めすることにより、下ロック金具５１と、上ロック金具５２を揺動可能に枢支している。
【００３１】
前記上ロック金具５２は、前記挿通軸５４が長孔５５ｆの上端となる位置まで押し下げることにより、図１５（ａ）、（ｃ）に示すごとく、係止ピン５５ｇを、前スロット部５５ｂと、立上がりスロット部５５ｃとに選択的に嵌着することによりこの上ロック金具５２を拘束でき、例えば前スロット部５５ｂに嵌着することによって、立上げ部枠体１５Ｂが前記寝具２に沿う倒れ状態に倒動することにより前記立上げ部枠体１５Ｂの高さを減じる。また立上がりスロット部５５ｃに嵌着したときには、前記立上げ部１０Ｂを、後方に約１０゜傾けて受け部１０Ａ上で立上がらせる。このように宮部を形成する立ち上がり状態と倒動状態との間で傾動、ロックしうる。なお、前記係止ピン５５ｇは、前記上ロック金具５２の半径方向外側への引き上げにより図１５（ｂ）のように前記案内部５５ｄを移動でき、かつ曲率半径Ｒ２が大である外側への移動はロックされる。
【００３２】
この傾動ロック手段１４は、例えば図１６〜図１８に示すように、前記上ロック金具５２に係止ピン５５ｇと中心孔５５ａとを設け、かつ下ロック金具５１に前記長孔５５ｆと、前記係止ピン５５ｇが周方向に移動するスリットからなる案内部５５ｄに前記立上げ部枠体１５Ｂの立上げ状態でロックするための立上がりスロット部５５ｃを設けている。このように、傾動ロック手段１４は、前記した機能を奏することが可能であればその変形は可能である。
【００３３】
前記カバー体１６は、図２，図１１，図１２に示すごとく、本形態では、前記受具基枠１５を収納して覆いうる下開放の袋体であり（種々に形成しうる）、前記シート体２Ｃにマッチしたデザインのシートを用いて縫製される。また下縁にはその左右の両端部分を残して切り込んだ切欠き部１６ａを有し、両端には前記Ｕ字状枠１５ｃの下端で貼着される面フアスナ１６ｂと、前記横架材１５ｄ下方で貼着される面フアスナ１６ｃ、１６ｃとを設けてその貼着によって、カバー体１６は前記受具基枠１５を覆って前記宮付き受具１０を構成しうる。なお収納袋１５ｄなどを設けうる。
【００３４】
またこの宮付き受具１０は、図３に示すように、立上げ部１０Ｂを、前記受け部１０Ａに対して立上がり状態で拘束されるとともに、該立上げ部１０Ｂが前記寝具２に沿う倒れ状態に倒動することにより前記立上げ部１０Ｂの高さを減じ、従って前記立上げ部１０Ｂを、立上がり状態と倒動状態との間で傾動させうる。
【００３５】
又、図２０，図２１に示すごとく、前記第１，第２のベッド枠体５Ａ，５Ｂが前記逆Ｖ字の垂直に折り畳まれた状態においては、前記立上げ部１０Ｂが寝具に沿って立ち上がることとなる。
【００３６】
前記シート体２Ｃは、図１〜図３に示すように、第１，２の載置枠３Ａ，３Ｂのマット半体２Ａ，２Ｂの上面をともに覆う基部２ａと、その両側で垂下する側垂れ部２ｂと、該側垂れ部２ｂとは分離され前記第２の載置枠３Ｂの前記マット半体２Ｂのずれを防ぐ前記受具１２を前記第２の載置枠３Ｂ上のマット半体２Ｂの一端側端面とともに覆う端垂れ部２ｃと、前記側垂れ部２ｂに一体に連続し前記第１の載置枠３Ａ上のマット半体２Ａの一端Ｓ１側端面で垂下する保持垂れ部２ｄとからなる。なお側垂れ部２ｂには本形態では面フアスナである保持具２ｆを内外面に貼着している。
【００３７】
なお保持垂れ部２ｄは、他の垂れ部２ａ〜２ｃよりも小巾であり、前記周囲枠２１の後枠部２１ｆのスペーサ２１ｇ上方で中央部は終端して前記マット半体２Ａを後端面で係止しうる。その結果、図１９〜図２１に示すごとく、保持垂れ部２ｄは位置ずれ不能に保持されるため、折畳みの進行とともに、他方の端垂れ部２ｃが基部２ａ、側垂れ部２ｂとともにマット半体２Ｂから位置ずれしてこのマット半体２Ｂの後端に露出部２ｅを形成する。また図２１のように、側垂れ部２ｂを左右の両側面で互いに畳んで重ね、かつ前記面フアスナなどの保持具２ｆにより保持させることにより収納を便宜とする。又前記宮付き受具１０の立上げ部１０Ｂは寝具２に沿って、立ち上がり、寝具２の押さえにも役立つことにより収納、保管を便宜とする。
【００３８】
【発明の効果】
上述したように、請求項１記載の発明では、折畳みベッドにおいて宮部を形成でき、かつ立上げ部が高さ変化機構により高さを減じうるため、折畳み状態において宮部による突出がなく、収納、移動を便宜とする。
【００３９】
請求項２に係る発明において、前スロット部と、立上がりスロット部との間の外周縁を、曲率半径が、その外側の外周縁の曲率半径よりも小としたことにより、曲率半径が大である外側への係止ピンの移動がロックされる。
【００４０】
請求項３に係る発明において、垂直に折り畳まれた状態において、前記立上げ部が寝具に沿って立ち上がることにより寝具の押さえにも役立つ。
【００４１】
又請求項４に係る発明は、宮付き受具が、長軸材を用いて形成した受具基枠と、この受具基枠を封入するカバー体とからなる結果、軽量化でき、かつ寝具との色合わせを容易として見映えを高める。
【００４２】
請求項５に係る発明においては、シート体が、第１の載置枠上のマット半体の一端側端面で保持されてマット上を移動することにより収納を便利とする。
【図面の簡単な説明】
【図１】本発明の一実施の形態を例示する一部を断面した斜視図である。
【図２】その分解斜視図である。
【図３】その側面図である。
【図４】載置枠と支脚部との取付け状態、及び浮き上がり防止手段を例示する斜視図である。
【図５】載置枠と中間支脚部との枢着状態を例示する斜視図である。
【図６】滑車の取付け状態を例示する断面図、
【図７】補強材を通る弾性材を例示する断面図である。
【図８】（ａ）従来の弾性材の取付け状態を例示する線図、（ｂ）それにより生じる引起こしモーメントを説明する線図である。
【図９】本形態で開示する弾性材の取付け状態により生じる引起こしモーメントを説明するための線図である。
【図１０】図８（ｂ）、図９のの引張部材による引起こしモーメントを例示する線図である。
【図１１】宮付き受具を説明する背面図である。
【図１２】カバー体を例示する正面図、（ｂ）はその側面図である。
【図１３】傾動ロック手段を例示する断面図である。
【図１４】その分解斜視図である。
【図１５】（ａ）、（ｂ）、（ｃ）はその作用を例示する断面図である。
【図１６】傾動ロック手段の他の実施の形態を例示する断面図である。
【図１７】その分解斜視図である。
【図１８】（ａ）、（ｂ）、（ｃ）はその作用を示す断面図である。
【図１９】折畳みの中間状態を例示する側面図である。
【図２０】折畳み状態を例示する側面図である。
【図２１】折畳み状態を寝具を含めて例示する斜視図である。
【図２２】宮付きを例示する側面図である。
【図２３】その折畳み状態を例示する側面図である。
【符号の説明】
２寝具
２Ａ，２Ｂ、マット半体
２Ｃシート体
２ａ基部
２ｂ側垂れ部
２ｃ端垂れ部
２ｄ保持垂れ部
３載置枠
３Ａ第１の載置枠
３Ｂ第２の載置枠
４支脚部
４Ａ第１の支脚部
４Ｂ第２の支脚部
５Ａ第１のベッド枠体
５Ｂ第２のベッド枠体
７中間支脚部
８継ぎ部材
９ベッド基体
１０宮付き受具
１０Ａ受け部
１０Ｂ立上げ部
１３高さ変化機構
１４傾動ロック手段
１５受具基枠
１５Ａ受け部枠体
１５Ｂ立上げ部枠体
１６カバー体
１７引起こし手段
１８浮上がり防止手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a foldable bed that has a raised portion from a bedding and has improved handling properties by eliminating protrusion of the raised portion of the bed in a vertically folded state.
[0002]
[Prior art]
For example, as shown in FIG. 23, there is known a folding bed that is vertically V-shaped and can be moved vertically by folding a futon or other bedding a. As shown in FIG. 22, this folding bed is provided with a mounting frame on which half (mat half) a1 and a2 of bedding (mat) are respectively mounted and support legs b1 and b2 are provided on each one end side. A bed base is provided in which the other end sides of the first and second bed frame bodies d1 and d2 are connected by a joint member f having an intermediate support leg e.
[0003]
In the illustrated example, the mounting frame, the supporting leg b1, the intermediate supporting leg e, and the mounting frame, the supporting leg b2, and the intermediate supporting leg e of the second bed frame d2 are as follows. Both are connected by connecting rods h, h to form a parallel crank mechanism at the upper part of the support leg, and each support leg part b1, b2 is a moving leg having wheels k, thereby bringing the support leg parts b1, b2 closer to each other. By folding in the direction, the folding bed is folded into an inverted V shape together with the bedding a as shown in FIG. Further, since the folding bed is a heavy body, a force to deploy the bed horizontally is always applied depending on the weight of the bed and the bedding. For example, the folding force is assisted by using a pulling means i using a tension spring. is doing.
[0004]
[Problems to be solved by the invention]
However, in a normal bed, pillows, books, glasses, and other items that are used or not used at bedtime are prevented from falling off the bed, and the items used to store and sometimes be used as a backrest protrude from the bedding. In the folding bed, for example, when the temple m shown in FIG. 22 is provided, when folded, the temple m protrudes from the support leg b1 in a substantially horizontal direction as shown by a one-dot chain line in FIG. In addition to being bulky, it sometimes becomes a hindrance to movement and walking, resulting in poor handling.
[0005]
The present invention is a folding bed that can reduce the height of the rising portion of the pawl-equipped receiver that forms the bed pawl portion, thereby preventing the rising portion from protruding horizontally even in the folded state, and improving the handleability. The purpose is to provide.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention is the first bed frame provided with the first support leg on one end side of the first placement frame on which the bedding is placed, and the second bed on which the bedding is placed. A second bed frame body provided with a second support leg on one end side of the mounting frame, and the other opposite ends of the first mounting frame and the second mounting frame are connected to the first and second mounting frames. A bed base comprising a joint member having a middle support leg and a joint that can be folded and unfolded between an unfolded state in which the frame is unfolded and an inverted V-shaped vertical state when the first and second support legs approach each other. With
The first bed frame body includes a receiving portion that rises at the one end of the first placement frame to prevent the bedding from being displaced, and a rising portion that forms a bed pawl portion by rising from the receiving portion in the unfolded state. And the rising portion is attached to the receiving portion with tilt lock means ,
The tilt lock means has a center hole, a front slot portion that opens toward the front of the bed, and a rising slot portion that opens rearward with respect to a vertical line, and a lower lock fitting provided in the receiving portion; A vertical long hole, and a locking pin that can be fitted into the front slot and the rising slot, and an upper lock fitting provided in the rising part and the center hole and the long hole. a folding bed, characterized in Rukoto such from an insertion shaft succeed to.
[0007]
According to a second aspect of the present invention, the lower lock fitting is provided with a substantially disc-shaped substrate portion, and the front slot portion and the rising slot portion are provided on the outer peripheral edge of the substrate portion. And the outer peripheral edge between the rising slot part is characterized in that the radius of curvature is smaller than the radius of curvature of the outer peripheral edge on the outer side , and the invention of claim 3 In the state where the first and second bed frame bodies are folded vertically in the inverted V shape, the rising portion rises along the bedding.
[0008]
The invention according to claim 4 is characterized in that the pawl-equipped receiver comprises a receiving part frame for receiving part formation using a long shaft material, and a rising part frame for forming a rising part. The invention comprises a base frame and a cover body that encloses the receiving base frame, and the invention according to claim 5 is the mat half on which the bedding is mounted on each mounting frame, and these A sheet body that continuously covers the mat half body, and the sheet body includes a base portion that covers the upper surfaces of the mat half bodies of the first and second mounting frames, and a side sag portion that hangs down on both sides thereof. An end sag part that covers a receiving member that is separated from the side sag part and prevents the mat half of the second mounting frame from shifting together with one end surface of the mat half on the second mounting frame; And a holding sag part that is continuous with the side sag part and hangs down at one end face of the mat half on the first mounting frame. To.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1 (the bed floor plate 22 shown in FIG. 2 is omitted) to FIG. 3, the folding bed 1 of the present invention includes a first support leg 4A provided at one end S1 of the first placement frame 3A. A first bed frame 5A, a second bed frame 5B having a second support leg 4B at one end of the second placement frame 3B, and the first placement frame 3A and the second placement frame 3B; 2 is provided with a bed base 9 comprising a joint member 8 having an intermediate support leg 7 that can be folded at the other end S2 facing each other (A and B are added to the end of the numeral when distinguished from the first and second, but are distinguished. When not necessary, A and B at the end of the numerals are omitted), and the first bed frame 5A is provided with a pawl receiving tool 10 at the one end of the first placement frame 3A.
[0010]
The first and second mounting frames 3A and 3B are provided with a reinforcing member 21a made of a pipe material and a downwardly opened groove-shaped member extending in the direction of the bed center line X, and plate receiving members 21b and 21b on both sides thereof. As shown in FIG. 2, the bed floor plate 22... Is stretched over the plate receiving members 21 b and 21 b and fixed to the substantially rectangular peripheral frame 21. The bedding 2 comprising the mat halves 2A and 2B, which are half of the mat, and the sheet body 2C continuously covering the mat halves 2A and 2B can be placed.
[0011]
Further, the first and second support legs 4A and 4B are each one end S1 of the side frame 21c of the peripheral frame 21 of each mounting frame 3 (the side on which the support legs 4 are attached as described above, It is pivotally attached in the vicinity of the side (sometimes referred to as each rear side).
[0012]
The first and second support legs 4A and 4B are composed of a left and right L-shaped frame 23 composed of a vertical column 23a and an extension extending at one end S1 at the lower end thereof, a joint member 24 connecting the left and right L-frames 23, and a joint. A column base provided with an auxiliary material 25 which is bent at a small length on the other end S2 side (front side) at the center of the material 24 is provided, and a caster is provided at the tip of the extension portion and auxiliary material 25.
[0013]
Further, as shown in FIG. 4, an upper mounting bracket 26 on the outer side surface of the column portion 23a and a lower mounting bracket 27 attached on the inner side surface are fixed above and below each column portion 23a. The upper mounting bracket 26 and the lower mounting bracket 27 protrude to the one end S1 side, that is, the rear side, and the inner surfaces of the left and right side frame portions 21c can be tilted by the pins p at the protruding ends of the upper mounting bracket 26. It is pivotally attached to.
[0014]
Further, as shown in FIG. 5, the side frame portion 21c is extended on the other end S2 side of the first and second mounting frames 3A and 3B so as to protrude beyond the front frame portion 21e of the peripheral frame 21. A protruding portion 21d is formed, and the protruding portions 21d and 21d are pivotally attached to each other by the connecting metal fitting 29 so that they can be folded into the folded state with a gap therebetween.
[0015]
As shown in FIG. 1, the left and right connecting metal fittings 29 are connected by a connecting shaft 30, and the intermediate support legs 7, 7 are suspended from the connecting shaft 30, and the space between the left and right intermediate support legs 7, 7 is shown. The joint member 8 is configured by being connected by a leg base frame portion 34 having a raised portion 33 bent upward at the center. The connecting metal fitting 29 is covered with a cover 35 to improve the appearance and safety. (As illustrated in FIG. 11, the leg base frame portion 34 is located above the lower end of the intermediate support leg 7, and the intermediate support leg 7, It can also be bridged between 7).
[0016]
Furthermore, in this embodiment, the intermediate support leg portion 7 is provided with a mounting bracket 36 having a through hole 37b at the same height as the protruding through hole 37a of the lower mounting bracket 27 (FIG. 4), and the through holes 37a and 37b. By connecting them with a connecting rod 19, in the first and second mounting frames 3A and 3B, each mounting frame 3, the connecting rod 19, the upper part of the supporting leg part 4, and the upper part of the intermediate supporting leg part 7 Respectively form a parallel crank mechanism. Accordingly, as shown in FIGS. 19 and 20, the intermediate support leg 7 and the support leg 4 can be folded while maintaining the orientation of the intermediate support leg 7 and the support leg 4 constant, for example, vertically. Only one of the first or second mounting frames 3A and 3B can be a parallel crank mechanism, and various folding beds that do not use the parallel crank mechanism can be adopted.
[0017]
In this embodiment, folding is assisted by using the raising means 17 schematically shown in FIGS. The pulling means 17 is fixed by the reinforcing member 21a of the mounting frame 3 shown in FIG. 6 and is supported by the pulley 17A pivotally supported by a bearing fitting fixed away from the other end S2. A string-like body 17B, one end of which is fixed to the raised portion 33 of the support leg 7 and wound on the top surface of the pulley 17A, and a coil spring (other elastic material such as a rubber body) coupled to the other end of the string-like body 17B. And a tension member 17D made of an elastic material 17C. The end of the tension member 17D is fixed at an appropriate position on the mounting frame 3.
[0018]
In the pulley 17A, the angle θ formed with respect to the vertical of the string-like body 17B by attaching one end of the string-like body 17B to the raised portion 33 is 30-60 in a deployed state when viewed from the side. The positioning is performed so that the angle is approximately 40 ° to 55 °, and approximately 45 ° in this embodiment. As shown in FIG. 7, the string-like body 17B and the elastic member 17C can be hidden from the field of view by passing through the groove portion of the reinforcing member 21a, thereby improving the appearance.
[0019]
Such a raising means 17 can make the raising moment M2 change for folding the bed preferable. That is, as shown in FIG. 8A, in the case where the tension member is directly bridged between the lower part of the intermediate support leg p and the rear end of the mounting frame q without using a pulley, the bed frame The moment that causes the bodies r and r (hereinafter referred to as the raising moment M1) is as shown in FIG. 8 (b) when the spring force T of the tension member is constant. When the angle of the rising is α, the inclination angle of the tension member from the horizontal state is β (downward is positive), the length of the mounting frame is A, and the intermediate support leg p is maintained in the vertical state, Therefore, M1 = TAsin (α + β) (α is referred to as a folding angle), and the change is indicated by a broken line in FIG. 10, where (α + β) is substantially 0 ° (α = 90 °, β = -90 °) In the folded state, the raising moment M1 approaches 0 . When considering the negative moment due to the weight of the bed and bedding and the reduction of the spring force due to the reduction of the spring length associated with folding, as the folding angle α increases as a whole, it is necessary to pull the mounting frame by hand. .
[0020]
On the other hand, in the raising means 17 of this embodiment, when the distance between the front end of the mounting frame 3 and the pulley 17A is B, the raising moment M2 is M2 = TBsin (α + β), and the folding angle In a folded state in which α is gradually increased from 0 ° (horizontal state) and α is 90 degrees so that the string-like body 12 and the mounting frame 3 are substantially perpendicular to each other, β is 0, that is, sin (α + β). As a result, as shown by the solid line in FIG. 10 (shown qualitatively), the moment M2 increases as the folding angle increases, and in the initial state as well as in the folded state. It is easier to exert a relatively large elevating moment M2, compared to the conventional one, and it is possible to apply a lifting force that can be folded naturally even in the unfolded state.
[0021]
For this purpose, in the present embodiment, as shown in FIG. 4, in the unfolded state of the first placement frame 3 A and the first support leg 4 A, the insertion portion 42 that penetrates the peripheral frame 21, and the column Lifting prevention means 18 is provided for enabling the positioning of the locking portion 43 formed in the portion 24a and preventing the lifting by inserting the locking bracket 45 in the aligned state. Note that the locking fitting 45 is appropriately suspended using a hanging tool 46. The lift preventing means 18 includes the second placement frame 3B and the second support leg portion 4B, or the first placement frame, in addition to the first placement frame 3A and the first support leg portion 4A. As long as at least one of 3A and 2nd mounting frame 3B and the said intermediate support leg part 7 are fixed so that rotation is impossible, various things can be selected.
[0022]
As shown in FIGS. 1 to 3, 11, and 12, the pawl receiving tool 10 is provided at the rear end of the first placement frame 3 A, and at the rear end of the second placement frame 3 B. Is provided with a receiver 12 that prevents the mat half 2B, which is the bedding 2, from slipping off.
[0023]
The pawl-equipped receiving tool 10 includes a receiving portion 10A that prevents the bedding 2 from being displaced, and a rising portion 10B that forms a bed pawl portion by rising from the receiving portion 10A in the unfolded state, and the rising portion 10B includes: As described above, the height changing mechanism 13 for reducing the height from the bedding 2 is attached to the receiving portion 10A, and the pawl-equipped receiving device 10 includes a receiving device base frame 15 and the receiving device base. The cover body 16 covers the frame 15.
[0024]
As shown in detail in FIG. 11, the receiving base frame 15 is connected to the receiving portion frame 15 A for constituting the receiving portion 10 A and the receiving portion frame 15 A via the height changing mechanism 13. And a rising portion frame 15B for constituting the rising portion 10B. As shown in part in FIG. 4, the receiving portion frame body 15A is fixed by a spacer 21g of the rear frame portion 21f of the peripheral frame 21 with a gap g therebetween, and is parallel to the rear frame portion 21f. An attachment shaft 15a made of a rectangular tube is provided.
[0025]
The receiving portion frame 15A is erected on both ends of the mounting shaft 15a and on both ends thereof, and protrudes left and right between the receiving portion 10A and the upper end of the standing frame member 15b that is substantially the same height. Are connected by a U-shaped frame 15c, and a horizontal member 15d is installed between the standing frame members 15b and 15b.
[0026]
Further, the rising frame 15B is formed between the outer surface of the one end and the other end of the support shafts 15f and 15f, which are coupled at one end with the height changing mechanism 13 above the standing frame member 15b. A joint material 15g having left and right U-shaped portions projecting toward both sides is provided to connect the upper ends of the support shafts 15f and 15f. The receiving portion frame body 15A and the rising portion frame body 15B can have various configurations such as using a plate-like member in addition to a bent body of a shaft or a cylindrical body.
[0027]
The height changing mechanism 13 restrains the rising portion 10B in a rising state with respect to the receiving portion 10A, and the rising portion 10B is tilted in a falling state along the bedding 2 to cause the rising portion 10B to fall. In this embodiment, the height of the raising portion 10B is reduced, and the rising portion 10B is configured as tilt lock means 14 that tilts between the rising state and the tilting state. If the rising portion 10B is not protruded from the folded body in the folded state, such as the height changing mechanism 13 of the type in which the rising portion 10B is inserted into the receiving portion 10A to expand and contract, or if the protruding amount can be suppressed. Various things can be used.
[0028]
As shown in FIGS. 13 to 15, the tilt lock means 14 includes a lower lock fitting 51 welded to the upper end of the standing frame member 15b of the receiving portion frame 15A, and the support shaft 15f of the rising portion frame 15B. It consists of an upper lock fitting 52 welded to the lower end and an insertion shaft 54 that joins both. The lower lock fitting 51 is provided with a substantially disc-shaped substrate portion at the upper end of the trunk portion that can be inserted into the standing frame member 15b. The substrate portion has a central hole 55a and a front side of the bed. A front slot portion 55b that opens horizontally and a rising slot portion 55c that opens at an angle of about 5 to 20 °, preferably 5 to 15 °, preferably 10 ° in the rear with respect to the vertical line, are provided on the outer peripheral edge. ing. The outer peripheral edge between the front slot 55b and the rising slot 55c is a guide 55d having a radius of curvature R1 smaller than the radius of curvature R2 of the outer peripheral edge.
[0029]
Further, the upper lock fitting 52 is also provided with a substantially disk-shaped substrate portion at the lower end of the body portion that is inserted into and welded to the support shaft 15f. A long hole 55f that extends is formed, and a locking pin 55g that can be fitted to the front slot portion 55b and the rising slot portion 55c by moving toward the center in the radial direction is provided above the elongated hole 55f.
[0030]
The insertion shaft 54 is provided with a shaft portion 54c through which the elongated hole 55f and the central hole 55a are inserted through the collar 54b, and a screw portion 54d, and the screw portion 54d is fastened with a nut. Thus, the lower lock fitting 51 and the upper lock fitting 52 are pivotally supported.
[0031]
The upper lock fitting 52 is pushed down to a position where the insertion shaft 54 becomes the upper end of the long hole 55f, so that as shown in FIGS. The upper lock metal fitting 52 can be restrained by selectively fitting with the rising slot portion 55c. For example, by fitting with the front slot portion 55b, the rising portion frame body 15B is brought into a collapsed state along the bedding 2. The height of the rising part frame 15B is reduced by tilting. When the riser portion 55c is fitted into the riser portion 55c, the riser portion 10B is tilted rearward by about 10 ° to rise on the receiving portion 10A. In this way, it can be tilted and locked between the rising state and the tilting state that form the pawl. The locking pin 55g can move the guide portion 55d as shown in FIG. 15 (b) by pulling the upper lock fitting 52 radially outward, and move outwardly with a large curvature radius R2. Is locked.
[0032]
For example, as shown in FIGS. 16 to 18, the tilt lock means 14 is provided with a locking pin 55g and a center hole 55a in the upper lock fitting 52, and the long hole 55f in the lower lock fitting 51, and the engagement. A rising slot portion 55c for locking the rising portion frame 15B in the raised state is provided in a guide portion 55d formed of a slit in which the stop pin 55g moves in the circumferential direction. As described above, the tilt lock means 14 can be modified as long as the function described above can be achieved.
[0033]
2, 11, and 12, in this embodiment, the cover body 16 is a lower open bag body that can accommodate and cover the receiving base frame 15 (which can be variously formed). Sewing is performed using a sheet having a design that matches the sheet body 2C. In addition, the lower edge has a notch 16a cut out with the left and right end portions left, the surface fastener 16b adhered at the lower end of the U-shaped frame 15c at both ends, and the horizontal member 15d below By providing the surface fasteners 16c and 16c to be attached in the above-mentioned manner, the cover body 16 can cover the receiver base frame 15 to constitute the support 10 with a pawl. A storage bag 15d or the like can be provided.
[0034]
Further, as shown in FIG. 3, the pawl-equipped receiving tool 10 restrains the rising part 10 B in a rising state with respect to the receiving part 10 A, and the rising part 10 B falls down along the bedding 2. The height of the rising portion 10B can be reduced by tilting to the right, so that the rising portion 10B can be tilted between the rising state and the tilting state.
[0035]
As shown in FIGS. 20 and 21, when the first and second bed frame bodies 5A and 5B are folded vertically in the inverted V shape, the rising portion 10B rises along the bedding. It will be.
[0036]
As shown in FIGS. 1 to 3, the sheet body 2 C includes a base 2 a that covers the upper surfaces of the mat halves 2 A and 2 B of the first and second mounting frames 3 A and 3 B, and a side sag hanging on both sides thereof. A mat half 2B on the second mounting frame 3B is provided on the second mounting frame 3B to prevent the mat half 2B of the second mounting frame 3B from being separated from the portion 2b and the side hanging portion 2b. An end sagging portion 2c that covers the one end side end surface, and a holding sagging portion 2d that is integrally continuous with the side sagging portion 2b and that hangs down at the end surface on the one end S1 side of the mat half 2A on the first mounting frame 3A Become. Note that a holder 2f, which is a surface fastener in this embodiment, is attached to the inner and outer surfaces of the side hanging portion 2b.
[0037]
Note that the holding drooping portion 2d is narrower than the other drooping portions 2a to 2c, and the central portion terminates above the spacer 21g of the rear frame portion 21f of the peripheral frame 21 so that the mat half body 2A is at the rear end surface. Can be locked. As a result, as shown in FIGS. 19 to 21, since the holding drooping portion 2d is held so as not to be misaligned, as the folding progresses, the other end drooping portion 2c together with the base 2a and the side drooping portion 2b is the mat half 2B. The exposed portion 2e is formed at the rear end of the mat half 2B. Further, as shown in FIG. 21, the side hanging portions 2b are folded on each other on both the left and right sides and overlapped with each other and held by a holding tool 2f such as the surface fastener for convenience of storage. Further, the rising portion 10B of the pawl receiving tool 10 rises along the bedding 2 and is useful for holding down the bedding 2 for convenience of storage and storage.
[0038]
【The invention's effect】
As described above, in the invention described in claim 1, the temple part can be formed in the folding bed, and the height of the rising part can be reduced by the height changing mechanism. For convenience.
[0039]
In the invention according to claim 2, the radius of curvature of the outer peripheral edge between the front slot portion and the rising slot portion is smaller than the radius of curvature of the outer peripheral edge on the outer side, so that the radius of curvature is large. movement of the locking pin to the outside appears to be locked.
[0040]
In the invention which concerns on Claim 3, in the state folded vertically, the said raising part is useful also for holding | suppressing bedding by rising along bedding.
[0041]
Further, the invention according to claim 4 is that the pawl-equipped receiver comprises a receiver base frame formed using a long shaft material and a cover body that encloses the receiver base frame. It makes it easy to match the color and enhance the appearance.
[0042]
In the invention which concerns on Claim 5, a sheet | seat body is hold | maintained by moving on a mat | matte, hold | maintained by the one end side end surface of the mat | matte half body on a 1st mounting frame.
[Brief description of the drawings]
FIG. 1 is a perspective view, partly in section, illustrating an embodiment of the invention.
FIG. 2 is an exploded perspective view thereof.
FIG. 3 is a side view thereof.
FIG. 4 is a perspective view illustrating a state in which the mounting frame and the support leg are attached, and lifting prevention means;
FIG. 5 is a perspective view illustrating a pivoted state between the mounting frame and the intermediate support leg.
FIG. 6 is a cross-sectional view illustrating an attached state of a pulley;
FIG. 7 is a cross-sectional view illustrating an elastic material passing through a reinforcing material.
FIGS. 8A and 8B are diagrams illustrating a conventional attachment state of an elastic material, and FIGS. 8B and 8B are diagrams illustrating an eliciting moment generated thereby. FIGS.
FIG. 9 is a diagram for explaining an eliciting moment generated by the attached state of the elastic material disclosed in the present embodiment.
10 is a diagram illustrating a pulling moment caused by the tension member of FIGS. 8B and 9; FIG.
FIG. 11 is a rear view illustrating a pawl receiving tool.
FIG. 12 is a front view illustrating a cover body, and (b) is a side view thereof.
FIG. 13 is a cross-sectional view illustrating tilt locking means.
FIG. 14 is an exploded perspective view thereof.
FIGS. 15A, 15B, and 15C are cross-sectional views illustrating the operation thereof.
FIG. 16 is a cross-sectional view illustrating another embodiment of the tilt lock means.
FIG. 17 is an exploded perspective view thereof.
18 (a), (b), and (c) are cross-sectional views illustrating the operation thereof.
FIG. 19 is a side view illustrating an intermediate state of folding.
FIG. 20 is a side view illustrating a folded state.
FIG. 21 is a perspective view illustrating a folded state including bedding.
FIG. 22 is a side view illustrating an example with a pawl.
FIG. 23 is a side view illustrating the folded state.
[Explanation of symbols]
2 Bedding 2A, 2B, Mat half 2C Sheet body 2a Base 2b Side drooping part 2c End drooping part 2d Holding drooping part 3 Mounting frame 3A First loading frame 3B Second loading frame 4 Supporting leg part 4A First Supporting leg part 4B Second supporting leg part 5A First bed frame body 5B Second bed frame body 7 Intermediate supporting leg part 8 Joint member 9 Bed base 10 Receptor 10A with receiving part 10B Rising part 13 Height changing mechanism 14 Tilt lock means 15 Receiving base frame 15A Receiving part frame body 15B Upright part frame body 16 Cover body 17 Lifting means 18 Lifting prevention means

Claims

A first bed frame body provided with a first support leg portion on one end side of the first placement frame on which the bedding is placed, and a second support leg portion on one end side of the second placement frame on which the bedding is placed A second bed frame body, and an unfolded state in which the first and second placement frames are unfolded, and the other end where the first placement frame and the second placement frame face each other; Comprising a bed base comprising a joint member having two intermediate leg portions that are foldable and unfoldable between the two leg portions approaching each other and folded in an inverted V-shaped vertical state;
The first bed frame body includes a receiving portion that rises at the one end of the first placement frame to prevent the bedding from being displaced, and a rising portion that forms a bed pawl portion by rising from the receiving portion in the unfolded state. And the rising portion is attached to the receiving portion with tilt lock means ,
The tilt lock means has a center hole, a front slot portion that opens toward the front of the bed, and a rising slot portion that opens rearward with respect to a vertical line, and a lower lock fitting provided in the receiving portion; A vertical long hole, and a locking pin that can be fitted into the front slot and the rising slot, and an upper lock fitting provided in the rising part and the center hole and the long hole. bed folding and wherein the Rukoto such from the insertion axis to take over.

The lower lock fitting is provided with a substantially disc-shaped substrate portion, and the front slot portion and the rising slot portion are provided on the outer peripheral edge of the substrate portion,
2. The folding bed according to claim 1 , wherein the outer peripheral edge between the front slot part and the rising slot part has a radius of curvature smaller than that of the outer peripheral edge .

The said pawl receiving tool is characterized in that, in a state in which the first and second bed frame members are folded vertically in the inverted V shape, the rising portion rises along the bedding. Or the folding bed of 2.

The pawl-equipped receiver includes a receiving part frame for receiving part formation using a long shaft material, a receiving base frame including a rising part frame for forming a rising part, and the receiving base frame. The foldable bed according to any one of claims 1 to 3, wherein the foldable bed is composed of a cover body that encloses.

The bedding includes a mat half placed on each placement frame and a sheet body continuously covering the mat half, and the sheet body is a mat for the first and second placement frames. A base part that covers both upper surfaces of the half body, a side hanging part that hangs down on both sides thereof, and a receiving member that is separated from the side hanging part and prevents the mat half of the second mounting frame from being displaced; An end sag part covering with one end side end surface of the mat half on the mounting frame, and a holding sagging part that continues to the side sag part and hangs on one end side end surface of the mat half on the first mounting frame. The foldable bed according to any one of claims 1 to 4, wherein the foldable bed comprises: