JP3600594B2

JP3600594B2 - Folding bed

Info

Publication number: JP3600594B2
Application number: JP2002130840A
Authority: JP
Inventors: 徹原島
Original assignee: ATECS CORP
Current assignee: ATECS CORP
Priority date: 2002-05-02
Filing date: 2002-05-02
Publication date: 2004-12-15
Anticipated expiration: 2018-06-08
Also published as: JP2002369731A

Description

【０００１】
【発明の属する技術分野】
本発明は、折畳み式ベッドに関する。
【０００２】
【従来の技術】
従来、不使用時にはスペースをとらないために、折畳み式ベッドとして上半身を載せる前ベッド半体と、下半身を載せる後ベッド半体とを、側面視倒立Ｖ字型に折畳み自在として枢結していた。
【０００３】
【発明が解決しようとする課題】
しかしながら、従来の折畳み式ベッドでは、折畳むときに、前ベッド半体、後ベッド半体の枢結部分には、ベッド展開時に、床面に当接して、ベッドにかかる荷重を支える中心脚が設けられているが、ベッドを折畳むときに、中心脚と前フレームとの間、又は、中心脚と後フレームとの間で、指等を挟んでしまう虞れがあった。そこで、本発明は、中心脚を前フレーム及び後フレームの側縁よりも内側に配設することを基本として、かかる虞れを低減しうる折畳み式ベッドを提供することを目的とする。さらにベッド折畳み状態からベッドを展開するときに、枢結部付近で指を挟む虞れを減じうる折畳みベッドも提供できる。
【０００４】
【課題を解決するための手段】
上述の目的を達成するために、本発明に係る折畳み式ベッドは、上半身を載せる前ベッド半体（１）の前フレーム（３）の両端と、下半身を載せる後ベッド半体（２）の後フレーム（５）の両端とが差し込まれ該前ベッド半体（１）と後ベッド半体（２）とを、側面視倒立Ｖ字型に折畳み自在として枢結する左右一対の枢結部（７），（７）を具え、枢結部材（７），（７）を互いに中心軸（２５）によって連結するとともに、ベッド展開時には、床面に当接して、ベッドにかかる荷重を支える中心脚（２６）を、前記中心軸（２５）に、かつ前記前フレーム（３）及び後フレーム（５）の側縁よりも内側に配設したことを特徴とし、さらに前記前フレーム（３）及び後フレーム（５）の側縁から中心脚（２６）の左右各端（２６ａ），（２６ａ）までの距離をＬとするとき、３０ｍｍ≦Ｌ≦１００ｍｍに設定することも、前記枢結部材（７）が、上壁部（１９）を有する安全カバー（８）により覆うこともできる。
【０００５】
さらに宮板（２７）について、宮板（２７）の内面が、平面視で前マット（４）の前端縁より前方側に位置するように宮板（２７）を設けたこと、及び宮板（２７）が、前ベッド半体（１）の前端縁に起立状に突設され、かつ、後ベッド半体（２）の後端縁に設けられた固定脚（３７）の左右一対の側柱部３８が、折畳み状態で、前ベッド半体１を支持する左右一対の前支脚３１と上記宮板２７の左右側端縁との間に、夫々差込まれるように構成されたこと、また、上半身を載せる前ベッド半体と、下半身を載せる後ベッド半体とを、側面視倒立Ｖ字型に折畳み自在として枢結した折畳み式ベッドに於て、前支脚を前ベッド半体を支持するように設け、該前支脚の柱部に折畳み状態で前ベッド半体を鉛直状に保つ揺動規制部材が設けることができる。
【０００６】
また、上半身を載せる前ベッド半体と、下半身を載せる後ベッド半体とを、側面視倒立Ｖ字型に折畳み自在として枢結した折畳み式ベッドに於て、前支脚を前ベッド半体を支持するように設け、該前支脚の柱部に折畳み状態で前ベッド半体を鉛直状に保つ揺動規制部材が設けられたものである。
【０００７】
【発明の実施の形態】
以下、実施の形態を示す図面に基づき本発明を詳説する。
【０００８】
図１は、本発明に係る折畳み式ベッドの側面図を示し、上半身を載せる前ベッド半体１と、下半身を載せる後ベッド半体２とが、側面視倒立Ｖ字型に折畳み自在として枢結されている。前ベッド半体１は、平面視コの字型の前フレーム３と、この前フレーム３に載置状に固着される板と綿と布製等の前マット４とから成り、後ベッド半体２は、平面視コの字型の後フレーム５と、この後フレーム５に載置状に固着される板と綿と布製等の後マット６とから成る。上記前フレーム３の両端は、図２に示すような枢結部材７，７に前方から差込まれ、後フレーム５の両端は、枢結部材７，７に後方から差し込まれる。さらにその外側を図３に示すような安全カバー８，８に覆われ、それらにボルトまたはピン等の軸部材９，９を挿通して固着されている。
【０００９】
具体的には、図２に示す枢結部材７は、前孔１０及び後孔１１を有する外側壁部１２と、上記外側壁部１２に平行に相対し、前孔１３及び後孔１４を有する内側壁部１５と、それら側壁部の下面中央部に架橋状に連設された底壁１６とから成る。また、図３に示す安全カバー８は、外側壁部１７と、上記外側壁部１７に平行に相対する内側壁部１８と、それら側壁部の上部を架橋状に連設された断面円弧状の上壁部１９と、から成る。安全カバー８の外側壁部１７は、枢結部材７の前孔１０に対応する前孔２０と、枢結部材７の後孔１１に対応する後孔２１を有する。また、安全カバー８の内側壁部１８は、枢結部材７の前孔１３に対応する前孔２２と、枢結部材７の後孔１４に対応する後孔２３を有し、さらに、下側中央部に矩形状の切欠き部２４を有する。
【００１０】
前フレーム３及び後フレーム５は、両端部に枢結用の孔を有する。そして、軸部材９を、外側から順に、前孔２０、前孔１０、前フレーム３の枢結用の孔、前孔１３、前孔２２に挿通して、前フレーム３と枢結部材７と安全カバー８は枢結されている。また、軸部材９を、外側から順に、後孔２１、後孔１１、後フレーム５の枢結用の孔、後孔１４、後孔２３に挿通して、後フレーム５と枢結部材７と安全カバー８は枢結されている。
【００１１】
図１１は、比較例を示し、前フレーム５１と前マット５２から成る前ベッド半体５３と、後フレーム５４と後マット５５から成る後ベッド半体５６とは、枢結部材５７にて枢結されている。この場合、ベッド折畳み状態からベッドを展開するときに、枢結部付近で指を挟む虞れがある。しかし、本発明の折畳み式ベッドでは、上述のように枢結部位が安全カバー８にて被覆されているので、このように枢結部付近で指を挟む虞れがなく、安全である。
【００１２】
図４，図５及び図６に於て、左右一対の枢結部材７，７は互いに中心軸２５によって連結されている。つまり、中心軸２５の両端に、枢結部材７，７が溶接等により固着されている。正面視Ｕ字型の中心脚２６は、両端２６ａ，２６ａを上記中心軸２５に溶接等により固着されている。この中心脚２６は、ベッド展開時には、床面に当接して、ベッドにかかる荷重を支える。
【００１３】
中心脚２６の両端２６ａ，２６ａは、ベッドの側縁より内側に配設されている。例えば、ベッド側縁から中心脚２６の左右各端２６ａまでの距離をＬとすると、３０ｍｍ≦Ｌ≦１００ｍｍに設定されている。なおベッドの側縁とは、前フレーム３及び後フレーム５の側縁を指す。図６中の２点鎖線で示すように、Ｌが３０ｍｍより小さいと、ベッドを折畳むときに、中心脚２６と前フレーム３との間、又は、中心脚２６と後フレーム５との間で、指等を挟んでしまう虞れがあり、Ｌが１００ｍｍより大きいと、ベッド左右の安定支持力が弱くなってしまう。
【００１４】
次に、図１、図４及び図５に示すように、前ベッド半体１の前端縁には、宮板２７が起立状に突設される。具体的には、前フレーム３の前端縁に、スペーサ２８を介して鉛直上方へ延びる弯曲門型の取付けパイプ２９が付設され、取付けパイプ２９の上方内面側に宮板２７が取付けられる。宮板２７の内面は、平面視で前マット４の前端縁より前方側に位置するように設けられている。すなわち、図１に示すように、スペーサ２８が、宮板２７の内面が平面視で前マット４の前端縁より前方側に位置するように調整する役目をなしている。
【００１５】
前マット４は、前マット４のさらに前約半分を多段階に起立状に折曲げ可能とするラチェット機構３０を、内部に有する（図１参照）。仮に、図１２に示すように、宮板５８の内面が前マット５９の前端縁よりも後方にあると、ラチェット機構６０を折曲げ、前マット５９の前約半分を起伏させようとしたとき、前マット５９の前端縁が宮板５８にぶつかり、任意の起伏状態にまで、折曲げることができない。しかし、本発明では、図７に示すように、ラチェット機構３０を折曲げて、前マット４の前約半分を、任意の起伏状態にまで（宮板２７にぶつかることなく）折曲げることが可能である。
【００１６】
図１に於て、前フレーム３の前端寄り側縁には、前ベッド半体１を支持する左右一対の前支脚３１，３１が枢結される。この前支脚３１は、柱部３２と、柱部３２の下方に付設された前後方向に延びる水平部３３と、水平部３３の前端下側及び後端下側に夫々設けられたキャスター３４，３４から成る。左右一対の柱部３２，３２は、その高さ方向中間部で、左右方向に渡された横桁部材３５にて互いに連結されている。
【００１７】
図１３の比較例に示す如く、宮板６３が、前支脚６１の柱部６２上端部から一体状に設けられていると、ラチェット機構６４を曲げた状態では、ベッドを折畳むことができない。つまり、ラチェット機構６４を曲げた状態でベッドを折畳もうとすると、途中の段階で、前マット６５と宮板６３が接触してしまい、それ以上、ベッドを折畳むことができなくなる。しかし、本発明では、図８に示す如く、宮板２７は前フレーム３と一体状に設けられているので、ラチェット機構３０を曲げた状態でも、ベッドを完全に折畳むことができる。
【００１８】
また、図９及び図１に於て、前支脚３１の左右一対の柱部３２，３２を連結する横桁部材３５は、ベッド折畳み状態に於て、前ベッド半体１を鉛直状に保つはたらきをするための（鉛直保持用）揺動規制部材４６の役目を兼ね備えている。図１４の比較例のように、揺動規制部材がないと、ベッドを折畳むときに、前ベッド半体６６の前端部６７が、後ベッド半体６８側へ傾き過ぎるので、前支脚６９の位置が鉛直状に定まらず、ぐらつく。しかし、本発明では、図９に示すように、ベッドを折畳むときに、前ベッド半体１が、ちょうど鉛直状態の位置で、前フレーム３と揺動規制部材４６が当接し、停止するので、安定した鉛直姿勢を保つ。
【００１９】
また、図１と図４，図５に示すように、前支脚３１の柱部３２，３２の上部内面には、ピン状又は折曲片等の支脚揺動規制部材３６，３６が、突設されており、水平展開状態で、この部材３６は、前フレーム３の下面に近接（又は当接）する位置に配設され、前支脚３１が、図１に於て、ベッドの折畳み操作時・展開操作時に、時計廻りに不意に回転するのを防止する。
【００２０】
図１，図５に於て、後フレーム５の後端縁には、弯曲門型の固定脚３７が固着状に連結される。この固定脚３７は、両端に左右一対の側柱部３８，３８を有し、これら側柱部３８，３８の上端を架橋として水平部３９が形成される。水平部３９は、中央部にキャスター４０を有する。側柱部３８，３８は、下端にキャスター４１，４１を有する。固定脚３７の左右一対の側柱部３８，３８は、折畳み状態で、前支脚３１，３１と宮板２７の左右側端縁との間に、夫々差し込まれるように構成されている。
【００２１】
すなわち、図４と図５と図１０に示すように、後マット６の左右端から、キャスター４１，４１の外端までの幅方向の距離を夫々Ｗ１とし、キャスター４１，４１の内端までの幅方向の距離を夫々Ｗ２とし、前マット４の左右端から宮板２７の左右側端縁までの幅方向の距離を夫々Ｗ０とすると、０＜Ｗ１かつ、Ｗ２＜Ｗ０に設定されている。
【００２２】
なお、図１に示すように、後フレーム５の前寄り（つまり、折畳み状態における上方側）には、図１に示すように、倒立略Ｕ字型の把手４２，４２が、上方突設状に左右一対に固着されている。把手４２は、中央部をスポンジ等の被覆材４３により被覆されている。ベッドを折畳むとき、この把手４２を上方に持上げることにより、容易にベッドを折畳むことができる。
【００２３】
また、図１に示すように、中心脚２６の中央部と前フレーム３の前端側中央部との間、及び、中心脚２６の中央部と後フレーム５の後端側中央部との間には、ばね等の弾発部材４４，４４が設けられている。このばねは、ベッドを折畳むときにベッドが折畳まれる力を補助するので、小さな力でベッドを折畳むことができる。
【００２４】
なお、鉛直保持用揺動規制部材４６としては、別途、柱部３２の内面から、突出ピンや突出片を付設して、鉛直折畳み状態で、前フレーム３の裏面に、当接するように構成しても良い（図示省略）。
【００２５】
【発明の効果】
本発明は上述の如く、前ベッド半体と、後ベッド半体とを枢結するための中心軸に、中央脚の両端がベッド側縁より内側に配設されているため、折畳みに際しての指詰めの危険性を防止しうる。
【図面の簡単な説明】
【図１】本発明の実施の一形態を示す側面図である。
【図２】枢結部材を示す斜視図である。
【図３】安全カバーを示す斜視図である。
【図４】ベッド全体の正面図である。
【図５】背面図である。
【図６】要部拡大図である。
【図７】前マットの折曲げ状態を示す説明図である。
【図８】ベッドの折曲げ状態を示す説明図である。
【図９】ベッドの折畳み状態を示す側面図である。
【図１０】平面図である。
【図１１】比較例を示す説明図である。
【図１２】比較例を示す説明図である。
【図１３】比較例を示す説明図である。
【図１４】比較例を示す説明図である。
【符号の説明】
１前ベッド半体
２後ベッド半体
４前マット
８安全カバー
２６中心脚
２６ａ端
２７宮板
３１前支脚
３２柱部
３７固定脚
３８側柱部
４６揺動規制部材
Ｌ距離[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cot.
[0002]
[Prior art]
Conventionally, in order to save space when not in use, a front bed half on which the upper body is mounted as a folding bed and a rear bed half on which the lower body is mounted are pivotally connected in an inverted V-shape when viewed from the side. .
[0003]
[Problems to be solved by the invention]
However, in the conventional foldable bed, the center leg supporting the load applied to the bed in contact with the floor surface when the bed is unfolded is provided at the pivotal portion of the front bed half and the rear bed half when the bed is folded. Although provided, there is a risk that a finger or the like may be pinched between the center leg and the front frame or between the center leg and the rear frame when the bed is folded. Therefore, the present invention is based on arranging the center leg inside the side edges of the front frame and the rear frame. An object of the present invention is to provide a foldable bed that can reduce such a risk . Further, it is possible to provide a folding bed which can reduce a possibility of pinching a finger near the pivot when the bed is deployed from the bed folded state.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a foldable bed according to the present invention comprises a front bed (1) on which an upper body is placed, both ends of a front frame (3), and a rear bed (2) on which a lower body is placed. Both ends of the frame (5) are inserted, and a pair of left and right pivots (7) pivotally connect the front bed half (1) and the rear bed half (2) in an inverted V-shape when viewed from the side. ), (7), the pivoting members (7), (7) are connected to each other by a central shaft (25), and when the bed is unfolded, the center leg ( 26) is disposed on the center axis (25) and inside the side edges of the front frame (3) and the rear frame (5), and the front frame (3) and the rear frame are further arranged. From the side edge of (5), the left and right ends (26a), (2) of the center leg (26) When the distance to a) is L, also be set to 30 mm ≦ L ≦ 100 mm, the pivotally member (7), it can be covered by the safety cover (8) having an upper wall portion (19).
[0005]
Furthermore, regarding the royal plate (27), the royal plate (27) is provided such that the inner surface of the royal plate (27) is located forward of the front edge of the front mat (4) in plan view. 27), a pair of left and right side columns of fixed legs (37) protruding from the front end of the front bed half (1) in an upright manner and provided at the rear end of the rear bed half (2). The part 38 is configured to be inserted between the pair of left and right front supports 31 supporting the front bed half 1 and the left and right side edges of the shrine plate 27 in the folded state, In a foldable bed in which a front bed half on which an upper body is placed and a rear bed half on which a lower body is placed are freely folded in an inverted V-shape when viewed from the side, the front support legs support the front bed half. And a swing regulating member for keeping the front bed half vertically in the folded state is provided on the pillar portion of the front support leg. Kill.
[0006]
In addition, the front support leg supports the front bed half in a folding bed in which the front bed half on which the upper body is placed and the rear bed half on which the lower body is placed are freely folded into an inverted V-shape in side view. And a swing regulating member for keeping the front bed half in a vertical state in a folded state is provided on the pillar portion of the front support leg.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments.
[0008]
FIG. 1 is a side view of a foldable bed according to the present invention. A front bed half 1 on which an upper body is placed and a rear bed half 2 on which a lower body is placed are pivotally connected in an inverted V-shape when viewed from the side. Have been. The front bed half 1 is composed of a front frame 3 having a U-shape in plan view, a plate fixedly mounted on the front frame 3 and a front mat 4 made of cotton, cloth or the like. Is composed of a rear frame 5 having a U-shape in plan view, a plate fixed to the rear frame 5 in a mounted state, and a rear mat 6 made of cotton, cloth, or the like. Both ends of the front frame 3 are inserted into the pivot members 7, 7 as shown in FIG. 2 from the front, and both ends of the rear frame 5 are inserted into the pivot members 7, 7 from the rear. Further, the outside is covered with safety covers 8, 8 as shown in FIG. 3, and shaft members 9, 9 such as bolts or pins are inserted through them and fixed.
[0009]
Specifically, the pivoting member 7 shown in FIG. 2 has an outer wall portion 12 having a front hole 10 and a rear hole 11 and a front hole 13 and a rear hole 14 opposed to the outer wall portion 12 in parallel. It comprises an inner wall portion 15 and a bottom wall 16 which is continuously provided in a bridge-like shape at the center of the lower surface of the side wall portion. The safety cover 8 shown in FIG. 3 has an outer wall portion 17, an inner wall portion 18 facing in parallel with the outer wall portion 17, and an arc-shaped cross-section in which the upper portions of the side wall portions are continuously connected in a bridging manner. And an upper wall 19. The outer wall portion 17 of the safety cover 8 has a front hole 20 corresponding to the front hole 10 of the pivot member 7 and a rear hole 21 corresponding to the rear hole 11 of the pivot member 7. The inner wall portion 18 of the safety cover 8 has a front hole 22 corresponding to the front hole 13 of the pivot member 7 and a rear hole 23 corresponding to the rear hole 14 of the pivot member 7. It has a rectangular notch 24 in the center.
[0010]
The front frame 3 and the rear frame 5 have pivot holes at both ends. Then, the shaft member 9 is inserted through the front hole 20, the front hole 10, the pivot hole of the front frame 3, the front hole 13, and the front hole 22 in order from the outside, and the front frame 3 and the pivot member 7 are connected to each other. The safety cover 8 is pivoted. Further, the shaft member 9 is inserted through the rear hole 21, the rear hole 11, the pivot hole of the rear frame 5, the rear hole 14, and the rear hole 23 in order from the outside, and the rear frame 5 and the pivot member 7 are connected to each other. The safety cover 8 is pivoted.
[0011]
FIG. 11 shows a comparative example, in which a front bed half 53 consisting of a front frame 51 and a front mat 52 and a rear bed half 56 consisting of a rear frame 54 and a rear mat 55 are pivotally connected by a pivoting member 57. Have been. In this case, when the bed is deployed from the bed folded state, there is a possibility that a finger may be pinched near the pivot. However, in the folding bed according to the present invention, since the pivot portion is covered with the safety cover 8 as described above, there is no risk of pinching a finger near the pivot portion as described above, and the bed is safe.
[0012]
4, 5 and 6, the pair of left and right pivot members 7, 7 are connected to each other by a central shaft 25. That is, the pivot members 7, 7 are fixed to both ends of the central shaft 25 by welding or the like. The U-shaped center leg 26 in front view has both ends 26a, 26a fixed to the center shaft 25 by welding or the like. When the bed is deployed, the center leg 26 abuts on the floor surface to support the load applied to the bed.
[0013]
Both ends 26a, 26a of the center leg 26 are disposed inside the side edges of the bed. For example, assuming that the distance from the bed side edge to each of the left and right ends 26a of the center leg 26 is L, the distance is set to 30 mm ≦ L ≦ 100 mm. The side edges of the bed refer to the side edges of the front frame 3 and the rear frame 5. As shown by the two-dot chain line in FIG. 6, when L is smaller than 30 mm, when the bed is folded, the distance between the center leg 26 and the front frame 3 or the distance between the center leg 26 and the rear frame 5 is reduced. When L is larger than 100 mm, the stable support force on the left and right sides of the bed is weakened.
[0014]
Next, as shown in FIGS. 1, 4 and 5, at the front edge of the front bed half 1, a shrine plate 27 is protrudingly provided. Specifically, a curved gate-shaped mounting pipe 29 extending vertically upward via a spacer 28 is attached to the front end edge of the front frame 3, and a shroud plate 27 is mounted on the upper inner surface side of the mounting pipe 29. The inner surface of the shroud 27 is provided so as to be located forward of the front edge of the front mat 4 in plan view. That is, as shown in FIG. 1, the spacer 28 serves to adjust the inner surface of the shroud plate 27 so as to be located forward of the front edge of the front mat 4 in a plan view.
[0015]
The front mat 4 has therein a ratchet mechanism 30 that allows the front half of the front mat 4 to be bent up and down in multiple steps (see FIG. 1). As shown in FIG. 12, if the inner surface of the shrine plate 58 is located behind the front edge of the front mat 59, the ratchet mechanism 60 is bent to make the front half of the front mat 59 undulate. The front edge of the front mat 59 hits the shrine plate 58 and cannot be bent to any undulating state. However, in the present invention, as shown in FIG. 7, the ratchet mechanism 30 can be bent so that the front half of the front mat 4 can be bent to an arbitrary undulating state (without hitting the shrine board 27). It is.
[0016]
In FIG. 1, a pair of left and right front supporting legs 31, 31 for supporting the front bed half 1 are pivotally connected to a side edge near the front end of the front frame 3. The front support leg 31 includes a pillar portion 32, a horizontal portion 33 provided below the pillar portion 32 and extending in the front-rear direction, and casters 34 and 34 provided below the front end and the rear end of the horizontal portion 33, respectively. Consists of The pair of left and right pillar portions 32, 32 are connected to each other at a middle portion in the height direction by a horizontal girder member 35 extending in the left and right direction.
[0017]
As shown in the comparative example of FIG. 13, when the palace 63 is provided integrally from the upper end of the pillar 62 of the front support leg 61, the bed cannot be folded in a state where the ratchet mechanism 64 is bent. That is, when the bed is folded in a state where the ratchet mechanism 64 is bent, the front mat 65 and the palace 63 come into contact with each other at an intermediate stage, and the bed cannot be folded any further. However, in the present invention, as shown in FIG. 8, since the palace 27 is provided integrally with the front frame 3, the bed can be completely folded even when the ratchet mechanism 30 is bent.
[0018]
In FIGS. 9 and 1, the horizontal girder member 35 connecting the pair of left and right pillars 32 of the front support leg 31 serves to keep the front bed half 1 vertical when the bed is folded. (For vertical holding) as well as the role of the swing regulating member 46. As in the comparative example shown in FIG. 14, when the bed is folded, the front end 67 of the front bed half 66 is too tilted toward the rear bed half 68 without the swing regulating member. The position is not fixed in a vertical shape and is unstable. However, in the present invention, as shown in FIG. 9, when the bed is folded, the front bed half 1 comes into contact with the front frame 3 and the swing regulating member 46 at the position of the vertical state and stops. Keep a stable vertical posture.
[0019]
As shown in FIGS. 1, 4 and 5, on the inner surfaces of the upper portions of the pillars 32 of the front support leg 31, support members 36, 36, such as pin-shaped or bent pieces, protrude. In a horizontally deployed state, the member 36 is disposed at a position close to (or in contact with) the lower surface of the front frame 3, and the front support leg 31 is moved in FIG. Prevents unintended rotation clockwise during the unfolding operation.
[0020]
In FIGS. 1 and 5, a curved gate-shaped fixed leg 37 is fixedly connected to the rear end edge of the rear frame 5. The fixed leg 37 has a pair of left and right side pillars 38, 38 at both ends, and a horizontal portion 39 is formed by bridging the upper ends of the side pillars 38, 38. The horizontal portion 39 has a caster 40 at the center. The side pillars 38 have casters 41 at their lower ends. The pair of left and right side pillars 38, 38 of the fixed leg 37 are configured to be inserted between the front support legs 31, 31 and the left and right side edges of the shrine board 27, respectively, in a folded state.
[0021]
That is, as shown in FIGS. 4, 5 and 10, the widthwise distance from the left and right ends of the rear mat 6 to the outer ends of the casters 41, 41 is W1, respectively. If the distance in the width direction is W2 and the distance in the width direction from the left and right ends of the front mat 4 to the left and right edges of the shrine board 27 is W0, respectively, 0 <W1 and W2 <W0 are set.
[0022]
In addition, as shown in FIG. 1, near the front of the rear frame 5 (that is, the upper side in the folded state), as shown in FIG. Are fixed to a pair of left and right sides. The handle 42 has a central portion covered with a covering material 43 such as a sponge. When the bed is folded, the bed can be easily folded by lifting the handle 42 upward.
[0023]
As shown in FIG. 1, between the center of the center leg 26 and the center of the front end of the front frame 3, and between the center of the center leg 26 and the center of the rear end of the rear frame 5. Are provided with resilient members 44, 44 such as springs. This spring assists the force of folding the bed when the bed is folded, so that the bed can be folded with a small force.
[0024]
In addition, as the vertical holding swing regulating member 46, a protruding pin or a protruding piece is separately attached from the inner surface of the column 32, and is configured to abut on the back surface of the front frame 3 in the vertically folded state. (Not shown).
[0025]
【The invention's effect】
According to the present invention, as described above, since the both ends of the central leg are disposed inside the bed side edge on the central axis for pivoting the front bed half and the rear bed half, the fingers for folding are provided. The risk of stuffing can be prevented.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of the present invention.
FIG. 2 is a perspective view showing a pivot member.
FIG. 3 is a perspective view showing a safety cover.
FIG. 4 is a front view of the entire bed.
FIG. 5 is a rear view.
FIG. 6 is an enlarged view of a main part.
FIG. 7 is an explanatory view showing a bent state of a front mat.
FIG. 8 is an explanatory view showing a bent state of a bed.
FIG. 9 is a side view showing a folded state of the bed.
FIG. 10 is a plan view.
FIG. 11 is an explanatory diagram showing a comparative example.
FIG. 12 is an explanatory diagram showing a comparative example.
FIG. 13 is an explanatory diagram showing a comparative example.
FIG. 14 is an explanatory diagram showing a comparative example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Front bed half 2 Rear bed half 4 Front mat 8 Safety cover 26 Center leg 26a End 27 Palace plate 31 Front support leg 32 Column 37 Fixed leg 38 Side column 46 Swing restricting member L Distance

Claims

Half bed before loading the upper body and both ends of the front frame (3) in (1), is plugged and both ends of the frame (5) after after bed halves (2) for placing a lower body the front bed half (1) A pair of left and right pivoting members (7), (7) for pivotally linking the rear bed half (2) with an inverted V-shape when viewed from the side; Are connected to each other by a central shaft (25), and when the bed is deployed , a center leg (26) that abuts on the floor surface and supports a load applied to the bed is attached to the central shaft (25) and the front frame (3). ) And the inner side of the rear frame (5) .

When the distance from the side edge of the front frame (3) and the rear frame (5) to each of the left and right ends (26a) and (26a) of the center leg (26) is L, the distance is set to 30 mm ≦ L ≦ 100 mm. The folding bed according to claim 1, wherein:

A folding bed according to claim 1 or 2, characterized in that the pivot member (7) is covered by a safety cover (8) having an upper wall (19) .

4. The shroud (27) according to any one of claims 1 to 3, wherein the shroud (27) is provided such that the inner surface of the shroud (27) is located forward of the front edge of the front mat (4) in plan view. Cot as described.

A pair of right and left fixed legs (37) are provided on the front edge of the front bed half (1) in an upright manner, and are provided on the rear edge of the rear bed half (2). Side pillars 38 are configured to be inserted between a pair of left and right front support legs 31 that support the front bed half 1 and the left and right side edges of the shrine board 27, respectively, in a folded state. The cot according to any one of claims 1 to 3, characterized in that:

A front support leg (31) is provided to support the front bed half (1), and the front bed half (1) is vertically held in a folded state on a column (32) of the front support leg (31). The folding bed according to any one of claims 1 to 5, wherein a regulating member (46) is provided .