JP2579445Y2 - Folding door device - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は、蝶番により展開折り畳み自在に連結した２
枚の戸本体から成る折れ戸の上部両端を上部ガイドレー
ルに移動可能に吊り下げると共に下部両端を下部ガイド
レールに移動可能に案内せしめた折れ戸装置に関するも
のである。[Detailed description of the present invention] (Industrial application field) The present invention uses a hinge 2
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door device in which both upper ends of a folding door composed of a sheet body are movably suspended on an upper guide rail and both lower ends are movably guided on a lower guide rail.

（従来の技術及びその問題点） この種の折れ戸装置は、折れ戸を折り畳んで開口部を
解放したとき、当該開口部からの物の出し入れに邪魔に
ならないように、折り畳み姿勢にある折れ戸を開口部の
一端へ移動させなければならないが、このとき両戸本体
が互いに重なる折り畳み限界姿勢にあると、上下両ガイ
ドレールに対して折れ戸が移動方向に傾動し易く、この
傾動によって折り畳み姿勢の折れ戸の移動が円滑に行わ
れなくなる欠点があった。(Prior Art and Problems Thereof) This type of folding door device has a folding door in a folded position so that when the folding door is folded and the opening is released, the opening and closing of the object from the opening is not obstructed. Must be moved to one end of the opening, but at this time, if the two door main bodies are in the folding limit position where they overlap each other, the folding door can easily tilt in the moving direction with respect to the upper and lower guide rails, and this tilting causes the folding position There is a drawback that the folding door cannot be moved smoothly.

（課題を解決するための手段） 本考案は上記のような従来の問題点を解消し得る折れ
戸装置を提供することを目的とするものであって、その
手段を後述する実施形態の参照符号を付して示すと、蝶
番2A〜2Cにより展開折り畳み自在に連結した２枚の戸本
体1A,1Bから成る折れ戸の上部両端を上部ガイドレール
３に移動可能に吊り下げると共に下部両端を下部ガイド
レール５に移動可能に案内せしめた折れ戸装置であっ
て、付勢手段９を備え、当該付勢手段９は、両戸本体1
A,1Bに装着された一対の当接部材12,16と、スプリング1
7a,17bを備え、両当接部材12,16の何れか一方は一定範
囲内移動可能に支持されて、前記スプリング17a,17bに
より一方向に付勢され、両当接部材12,16の何れか一方
は、他方の当接部材の当接端部12aが当接する傾斜カム
面25を備え、当該当接端部12aと傾斜カム面25とは、両
戸本体1A,1Bが互いに重なる折り畳み限界姿勢Ｃより一
定角度手前の平面視Ｖの字形姿勢Ｂから前記折り畳み限
界姿勢Ｃまでの一体角度範囲内にあるとき、前記スプリ
ング17a,17bの付勢力で互いに圧接して、その反力で両
戸本体1A,1Bを展開方向に付勢するもので、前記折り畳
み限界姿勢Ｃを保持させる係合部を備えず、前記スプリ
ング17a,17bの付勢力は、この折れ戸を折り畳み状態で
左右に横動させるとき、折れ戸が前記折り畳み限界姿勢
Ｃになるのを阻止し得る強さとした構成となっている。(Means for Solving the Problems) An object of the present invention is to provide a folding door device that can solve the above-described conventional problems, and the means are denoted by reference numerals in embodiments described later. The upper ends of a folding door composed of two door bodies 1A and 1B connected in a freely expandable and foldable manner by hinges 2A to 2C are movably suspended on an upper guide rail 3 and both lower ends are provided with lower guides. A folding door device movably guided on a rail 5, comprising a biasing means 9, wherein the biasing means 9 comprises a double door main body 1.
A pair of contact members 12 and 16 mounted on A and 1B, and a spring 1
7a, 17b, one of the two contact members 12, 16 is supported so as to be movable within a certain range, and is biased in one direction by the springs 17a, 17b. One of them has an inclined cam surface 25 with which the contact end portion 12a of the other contact member abuts, and the contact end portion 12a and the inclined cam surface 25 are at a folding limit at which the door bodies 1A and 1B overlap each other. When the angle is within an integral angle range from the V-shaped posture B in a plan view V, which is a predetermined angle before the posture C, to the folding limit posture C, the springs 17a and 17b press against each other by the urging force, and the reaction force causes The main body 1A, 1B is urged in the deployment direction, does not include an engaging portion for holding the folding limit posture C, and the urging force of the springs 17a, 17b laterally moves left and right in the folded state of the folding door. When making the folding door, the folding door is configured to have such strength that the folding door can be prevented from being in the folding limit position C. That.

（考案の作用） 平面状に展開した状態の折れ戸によって閉じられる開
口部を解放するために折れ戸を折り畳むとき、両戸本体
1A,1Bが完全に重なる折り畳み限界姿勢Ｃより一定角度
手前の前記平面視Ｖの字形姿勢Ｂまで折り畳むと、それ
以上の折り畳み運動を、前記付勢手段９の一対の当接部
材12,16における当接端部12aと傾斜カム面25とがスプリ
ング17a,17bの付勢力で互いに圧接して阻止することに
なり、折れ戸は、前記平面視Ｖの字形姿勢Ｂで上下両ガ
イドレール3,5に沿って横動させることができる。(Effect of the invention) When the folding door is folded in order to release the opening closed by the folding door in a state where it is unfolded in a plane, the two-door main body
When the folding limit posture C in which 1A and 1B are completely overlapped is folded to the above-mentioned V-shaped posture B in a plan view at a certain angle before the folding posture C, further folding movement is performed by the pair of contact members 12 and 16 of the urging means 9. The contact end portion 12a and the inclined cam surface 25 are pressed against each other by the biasing force of the springs 17a and 17b and are blocked, and the folding door is in the V-shaped position B in plan view and the upper and lower guide rails 3,5. Can be traversed along.

係る平面視Ｖの字形姿勢Ｂでは、折れ戸の上下両端部
と上下両ガイドレール3,5との係合箇所がこれらガイド
レール3,5の長さ方向に適当距離離れることになるの
で、折れ戸をガイドレール長さ方向に移動させるとき、
折り畳み状態の折れ戸が斜めに傾動する恐れが殆どなく
なる。従って折り畳み状態の折れ戸を円滑に横動させる
ことができる。In the V-shape posture B in plan view V, the engaging portions between the upper and lower ends of the folding door and the upper and lower guide rails 3 and 5 are separated from each other by an appropriate distance in the length direction of the guide rails 3 and 5. When moving the door in the guide rail length direction,
The possibility that the folding door in the folded state tilts obliquely is almost eliminated. Therefore, the folding door in the folded state can be moved laterally smoothly.

勿論、開口部の一端まで折れ戸を移動し終わったなら
ば、必要に応じて前記平面視Ｖの字形姿勢Ｂから前記付
勢手段９におけるスプリング17a,17bの付勢力に抗して
折れ戸を折り畳み限界姿勢Ｃまで完全に折り畳み、前記
付勢力に抗して当該折り畳み限界姿勢Ｃを手で保持する
ことにより、開口部の開口率を高めて物品の出し入れを
容易に行うこともできる。また、折り畳み限界姿勢Ｃの
折れ戸から手を離すことにより、前記付勢手段９の一対
の当接部材12,16における当接端部12aと傾斜カム面25と
の圧接反力により折れ戸は自動的に前記平面視Ｖの字形
姿勢Ｂまで開動するので、折れ戸をその姿勢で円滑に横
動させることができる。Of course, when the folding door has been moved to one end of the opening, the folding door is moved against the urging force of the springs 17a, 17b in the urging means 9 from the V-shaped posture B in plan view as necessary. By completely folding to the folding limit position C and holding the folding limit position C by hand against the urging force, it is possible to increase the aperture ratio of the opening and easily carry in and out the articles. Further, when the user releases his / her hand from the folding door in the folding limit posture C, the folding door is pressed by the pressing contact reaction force between the contact end 12a of the pair of contact members 12, 16 of the urging means 9 and the inclined cam surface 25. Since the door is automatically opened to the V-shape posture B in the plan view V, the folding door can be smoothly moved sideways in that posture.

（実施例） 以下に本考案の一実施例を添付の例示図に基づいて説
明する。(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

第１図及び第２図において、1A,1Bは戸本体であっ
て、その隣接側辺どうしが上下両端部及び中央部の３か
所で蝶番2A〜2Cにより折曲自在に連結されている。３は
上部ガイドレールであって、両戸本体1A,1Bの上端部で
遊端近傍位置を、垂直支軸の周りに回転可能な吊下用水
平軸ホィール4a,4bを介して吊り下げる。５は下部ガイ
ドレールであって、前記両戸本体1A,1Bの下端部で遊端
近傍位置に、前記吊下用水平軸ホィール1a,1bを支承す
る垂直支軸と同心状の垂直軸の周りで回転可能に軸支さ
れた振れ止め用ローラー6a,6bが嵌合する。In FIGS. 1 and 2, reference numerals 1A and 1B denote door main bodies, and adjacent side sides thereof are hingedly connected to each other by hinges 2A to 2C at three locations at upper and lower ends and a central portion. Reference numeral 3 denotes an upper guide rail, which suspends a position near the free end at the upper end of both door bodies 1A, 1B via suspension horizontal shaft wheels 4a, 4b rotatable around a vertical support shaft. Reference numeral 5 denotes a lower guide rail, which is provided at a lower end portion of the two-door main body 1A, 1B near a free end, around a vertical axis concentric with a vertical support axis for supporting the suspension horizontal axis wheels 1a, 1b. The anti-sway rollers 6a and 6b which are rotatably supported by the fitting are fitted.

前記蝶番2A〜2Cは各々同一構造のものであって、第３
図及び第４図に示すように、一対の取付板7a,7bを支軸
８により折曲自在に連結するとともに、係止機構付き付
勢手段９を設けたものである。前記支軸８は、一方の取
付板7aの背面側に連設された３つの軸受部10a〜10cと、
他方の取付板7bから連設され且つ前記軸受部10a〜10c間
に嵌合する軸受部11a,11bとを貫通する。The hinges 2A to 2C have the same structure,
As shown in FIG. 4 and FIG. 4, a pair of mounting plates 7a and 7b are connected by a support shaft 8 so as to be freely bent, and a biasing means 9 with a locking mechanism is provided. The support shaft 8 includes three bearing portions 10a to 10c continuously provided on the back side of one mounting plate 7a,
It penetrates through bearings 11a and 11b which are provided continuously from the other mounting plate 7b and fit between the bearings 10a to 10c.

前記係止機構付き付勢手段９は、一方の取付板7aの遊
端中央部から背面側に突設されたＬ形の当接部材12、前
記取付板7aの中央に位置する軸受部10bに形成した被係
止突起13、及び他方の取付板7aの背面中央部に設けられ
た本体14から構成されている。この本体14は、第５図〜
第７図にも示すように、前記軸受部10bに対する遠近方
向で取付板7bの背面に沿って移動可能な可動体15と可動
当接部材16、可動体15と可動当接部材16との間に介装さ
れて可動体15と可動当接部材16とを互いに離間させる方
向に付勢する２つの圧縮コイルスプリング17a,17b、及
び軸受部10bから遠い側の可動当接部材16に形成された
長孔18に先端部が遊嵌して当該可動当接部材16の移動範
囲を制限するストッパー用ビス19から構成されている。
20は前記取付板7bから突設された左右一対の案内板であ
り、可動体15と可動当接部材16の両側面に形成された凹
溝21,22に嵌合する案内用突条23a,23bが内側に突設され
ている。The urging means 9 with the locking mechanism includes an L-shaped abutting member 12 protruding rearward from the center of the free end of one mounting plate 7a, and a bearing portion 10b located at the center of the mounting plate 7a. It is composed of the formed locked projection 13 and a main body 14 provided at the center of the back surface of the other mounting plate 7a. This main body 14 is shown in FIGS.
As shown in FIG. 7, between the movable body 15 and the movable contact member 16 that can move along the back surface of the mounting plate 7b in the direction of the perspective with respect to the bearing portion 10b, and between the movable body 15 and the movable contact member 16. Are formed on the two compression coil springs 17a, 17b for urging the movable body 15 and the movable contact member 16 in a direction to separate the movable body 15 and the movable contact member 16 from each other, and the movable contact member 16 far from the bearing portion 10b. The distal end portion is loosely fitted in the long hole 18 and is constituted by a stopper screw 19 for limiting the moving range of the movable contact member 16.
Reference numeral 20 denotes a pair of left and right guide plates projecting from the mounting plate 7b, and guide protrusions 23a, which are fitted into concave grooves 21, 22 formed on both side surfaces of the movable body 15 and the movable contact member 16. 23b protrudes inward.

前記可動体15には、前記軸受部10bに対向する内端部
に、前記軸受部10bと取付板7bとの間に入り込む係止突
起部24が形成され、前記可動当接部材16の外端部には、
傾斜カム面25が形成されている。At the inner end of the movable body 15 facing the bearing 10b, a locking projection 24 which is inserted between the bearing 10b and the mounting plate 7b is formed, and an outer end of the movable contact member 16 is formed. In the department,
An inclined cam surface 25 is formed.

第１図及び第２図に示すように、両戸本体1A,1Bが連
続平面状に展開して開口部を閉じる展開姿勢Ａにあると
き、各蝶番2A〜2Cは、第３図〜第５図に示すように両取
付板7a,7bが連続平面状に展開した状態にあって、可動
体15の係止突起部24が、第５図に示すように軸受部10b
の被係止突起13と取付板7aとの間に嵌合している。この
とき両取付板7a,7bは、その隣接端面どうしが互いに当
接するとともに、前記被係止突起13と可動体15の係止突
起部24とが互いに当接することにより、何れの方向にも
折曲回転することができない。従って、両戸本体1A,1B
は、前記展開姿勢Ａにおいて弾性的に係止された状態に
なる。As shown in FIGS. 1 and 2, when the two-door main bodies 1A and 1B are deployed in a continuous plane and are in a deployed posture A in which the opening is closed, the hinges 2A to 2C are moved in FIGS. As shown in the figure, the mounting projections 24 of the movable body 15 are in the state where both mounting plates 7a and 7b are unfolded in a continuous plane, and the bearing 10b as shown in FIG.
Between the locked projection 13 and the mounting plate 7a. At this time, the mounting plates 7a and 7b are bent in either direction by their adjacent end faces abutting each other and the locking projection 13 and the locking projection 24 of the movable body 15 abutting each other. Can't rotate songs. Therefore, both doors 1A, 1B
Is elastically locked in the deployed position A.

なお、このとき第４図及び第５図に示すように、取付
板7a,7bが完全は連続平面状ではなく、閉動方向とは逆
方向に若干（例えば１〜２度程度）過展開の姿勢で保持
されるように構成するのが好ましい。At this time, as shown in FIGS. 4 and 5, the mounting plates 7a and 7b are not completely continuous and slightly over-deployed (for example, about 1 to 2 degrees) in the direction opposite to the closing direction. It is preferable to be configured to be held in a posture.

展開姿勢Ａの両戸本体1A,1Bに、蝶番2A〜2Cで互いに
連結された隣接端部を外側に引き出すように折り畳む操
作力を加えると、各蝶番2A〜2Cの被係止突起13が係止突
起部24を介して可動体15をスプリング17a,17bの付勢力
に抗して後退移動さえることになり、当該被係止突起13
が係止突起部24を乗り越えることにより両戸本体1A,1B
（取付板7a,7b）の係止作用が解除され、両戸本体1A,1B
が各蝶番2A〜2Cの支軸８を中心に回転し、て折り畳まれ
ることになる。When an operation force is applied to both door bodies 1A and 1B in the deployed posture A to fold out the adjacent ends connected to each other by the hinges 2A to 2C, the locked projections 13 of the hinges 2A to 2C are engaged. The movable body 15 is even moved backward through the stop projection 24 against the urging force of the springs 17a and 17b.
Over the locking projection 24, the two doors 1A, 1B
The locking action of the (mounting plates 7a, 7b) is released, and both doors 1A, 1B
Will rotate about the support shaft 8 of each hinge 2A-2C, and will be folded.

そして両戸本体1A,1Bが第１図に仮想線で示すよう
に、両戸本体1A,1Bが完全に重なる折り畳み限界姿勢Ｃ
より一定角度手前の平面視Ｖの字形姿勢Ｂに達したと
き、第５図に示す可動当接部材16の傾斜カム面25に当接
部材12の当接端部12aが当接し、両戸本体1A,1Bの折り畳
み運動に対し大きな抵抗が生じる。従って、係る状態で
両戸本体1A,1Bの一方を上下両ガイドレール3,5の長さ方
向に押しても、両戸本体1A,1Bが前記平面視Ｖの字形姿
勢Ｂを越えて折り畳み限界姿勢Ｃまで折り畳まれること
はなく、前記平面視Ｖの字形姿勢Ｂを維持したままで両
戸本体1A,1Bを開口部の一端側へガイドレール3,5に沿っ
て移動させることができる。このとき、両ガイドレール
3,5と両戸本体1A,1Bとの係合か所（吊下用水平軸ホィー
ル4a,4b及び振れ止め用ローラー6a,6b）が当該ガイドレ
ール3,5の長さ方向に適当距離離れているので、移動す
る両戸本体1A,1Bは上部ガイドレール３から垂直に垂下
する正常な姿勢を保つことになり、移動方向に傾斜して
円滑な移動が妨げられるようなことにはならない。Then, as shown by the imaginary line in FIG. 1, the two-door main bodies 1A and 1B are in the folding limit position C where the two-door main bodies 1A and 1B completely overlap.
When reaching the V-shaped posture B in a plan view V which is a certain angle before, the contact end 12a of the contact member 12 contacts the inclined cam surface 25 of the movable contact member 16 shown in FIG. Large resistance to 1A and 1B folding movement. Therefore, even if one of the two door main bodies 1A, 1B is pushed in the length direction of the upper and lower guide rails 3, 5 in such a state, the double door main bodies 1A, 1B exceed the V-shaped posture B in the plan view and the folding limit posture. The double door main body 1A, 1B can be moved along the guide rails 3, 5 to one end side of the opening while maintaining the V-shaped posture B in plan view without being folded to C. At this time, both guide rails
The engaging points (horizontal shaft wheels 4a and 4b for suspension and rollers 6a and 6b for anti-sway) between the doors 3 and 5 and the doors 1A and 1B are separated by an appropriate distance in the length direction of the guide rails 3 and 5. Therefore, the moving two-door main bodies 1A and 1B maintain a normal posture vertically hanging from the upper guide rail 3, and do not obstruct the smooth movement by being inclined in the movement direction.

開口部の一端に前記平面視Ｖの字形姿勢Ｂの両戸本体
1A,1Bが達したならば、開口部の一端に接している一方
の戸本体（例えば戸本体1A）に、他方の戸本体（例えば
戸本体1B）を強く押しつけるように操作することによ
り、前記当接部材12の当接端部12aが傾斜カム面25を介
して可動当接部材16をスプリング17a,17bの付勢力に抗
して後退移動させることになるので、前記平面視Ｖの字
形姿勢Ｂを越えて折り畳み限界姿勢Ｃまで両戸本体1A,1
Bを折り畳むことができるが、この場合でも、折り畳み
操作力を無くすことにより、前記スプリング17a,17bの
付勢力が可動当接部材16の傾斜カム面25から当接部材12
の当接端部12aに作用して、両戸本体1A,1Bを展開方向に
開動させるので、両戸本体1A,1Bは元の平面視Ｖの字形
姿勢Ｂまで復帰し、折り畳み限界姿勢Ｃで両戸本体1A,1
Bが安定することはない。A double door main body having a V-shaped posture B in plan view at one end of an opening.
When 1A, 1B is reached, by operating to strongly press the other door body (eg, door body 1B) against one door body (eg, door body 1A) in contact with one end of the opening, The contact end portion 12a of the contact member 12 causes the movable contact member 16 to move backward through the inclined cam surface 25 against the urging force of the springs 17a and 17b. Both doors 1A, 1 until folding position C beyond B
B can be folded, but even in this case, by eliminating the folding operation force, the biasing force of the springs 17a and 17b allows the contact member 12 to move from the inclined cam surface 25 of the movable contact member 16.
Acting on the contact end 12a of the door to open the two-door main body 1A, 1B in the developing direction, the two-door main body 1A, 1B returns to the original V-shape posture B in plan view, and is in the folding limit posture C. Double door body 1A, 1
B never stabilizes.

即ち、第１図及び第５図に夫々仮想線で示すように、
両戸本体1A,1Bを折り畳み限界姿勢Ｃにおいて保持する
ためには、両戸本体1A,1Bを互いに折り重ねる向きに、
付勢手段９により両戸本体1A,1Bに与えられている展開
方向の付勢力に打ち勝つだけの強い操作力を継続的に与
えておかなければならず、両戸本体1A,1Bから手を離し
て前記操作力を解除すると、前記付勢力により両戸本体
1A,1Bは自動的に前記平面視Ｖの字形姿勢Ｂまで開動し
て安定することになる。That is, as shown by virtual lines in FIGS. 1 and 5, respectively.
In order to hold the two-door main bodies 1A and 1B in the folding limit posture C, in a direction in which the two-door main bodies 1A and 1B are folded over each other,
It is necessary to continuously apply a strong operating force enough to overcome the urging force in the developing direction given to both door main bodies 1A and 1B by the urging means 9, and release the hands from both door main bodies 1A and 1B. When the operating force is released by pressing the
1A and 1B are automatically moved to the V-shape posture B in plan view and stabilized.

（考案の効果） 以上のように本考案の折れ戸装置によれば、両戸本体
が互いに重なる折り畳み限界姿勢Ｃより一定角度手前の
平面視Ｖの字形姿勢Ｂのままで折れ戸をガイドレールに
沿って横動させることができるので、この折り畳み状態
での折れ戸の移動を円滑に行わせることができるのであ
るが、本考案によれば、 当接端部と傾斜カム面とは、両戸本体が互いに重な
る折り畳み限界姿勢より一定角度手前の平面視Ｖの字形
姿勢から前記折り畳み限界姿勢までの一定角度範囲内に
あるとき、前記スプリングの付勢力で互いに圧接して、
その反力で両戸本体を展開方向に付勢するもので、前記
折り畳み限界姿勢を保持させる係合部を備えないこと、 前記スプリングの付勢力は、前記折れ戸を折り畳み
状態で左右に横動させるとき、折れ戸が前記折り畳み限
界姿勢になるのを阻止し得る強さとしたこと、 の２つの構成要件により、例えば開動限において平面視
Ｖの字形姿勢にある折れ戸を前記スプリングの付勢力に
抗して無理に折り畳み限界姿勢まで押圧しない限り、折
れ戸を折り畳み限界姿勢に切り換えることができず、し
かもその押圧操作力をそのまま継続させていない限り、
折れ戸は前記スプリングの付勢力で自動的に平面視Ｖの
字形姿勢に復帰してしまうのである。(Effects of the Invention) As described above, according to the folding door device of the present invention, the folding door is attached to the guide rail in the V-shape posture B in a plan view V which is a certain angle before the folding limit posture C where the two main bodies overlap each other. The folding door can be moved in the folded state, so that the folding door can be smoothly moved in the folded state. However, according to the present invention, the contact end and the inclined cam surface are When the main body is within a certain angle range from the V-shaped posture in a plan view V which is a certain angle before the overlapping folding limit posture to the folding limit posture, the main body is pressed against each other by the biasing force of the spring,
The reaction force urges both door bodies in the unfolding direction, and does not include an engaging portion for maintaining the folding limit posture. The urging force of the spring moves the folding door horizontally in the folded state. When the folding door is made to have a strength capable of preventing the folding door from being in the folding limit position, for example, the folding door in the V-shaped position in plan view at the opening limit is subjected to the urging force of the spring. Unless you forcefully push the folding door to the folding limit position, the folding door cannot be switched to the folding limit position, and unless the pressing operation force is continued as it is,
The folding door automatically returns to the V-shape in plan view by the biasing force of the spring.

即ち、単に折れ戸を折り畳み限界姿勢と平面視Ｖの字
形姿勢とに保持する係合部を備えているものでは、開動
操作時の力の入れ方で折れ戸が平面視Ｖの字形姿勢から
折り畳み限界姿勢に切り替わってしまって、平面視Ｖの
字形姿勢のままで開閉させるという所期の目的が達成で
きなくなって、こじれが生じるなどして円滑な開閉がで
きなくなる恐れがあるばかりでなく、開口部を全開させ
るために開動限で折れ戸を折り畳み限界姿勢に切り換え
た場合、閉動に先立って折れ戸を元の平面視Ｖの字形姿
勢に戻す操作をわざわざ行う必要があり、この操作を怠
って閉動操作を行うと結局がこじれが生じるなどして円
滑な閉動を行わせることができない。しかも、折り畳み
限界姿勢にある折れ戸を元の平面視Ｖの字形姿勢に戻す
操作は、両戸本体を互いに離間させる方向に相対移動さ
せなければならず、容易ではない。That is, in the case where the folding door is simply provided with the engagement portion that holds the folding door in the folding limit posture and the V-shaped posture in plan view, the folding door is folded from the V-shaped posture in plan view by applying force during the opening operation. In addition to switching to the limit position, the intended purpose of opening and closing in the V-shaped position in plan view cannot be achieved, and there is a possibility that smooth opening and closing may not be possible due to occurrence of twisting, etc. When the folding door is switched to the folding limit position at the opening limit to fully open the part, it is necessary to perform an operation of returning the folding door to the original V-shaped posture in plan view prior to the closing movement, and this operation is neglected. When the closing operation is performed by the operator, a smooth closing operation cannot be performed due to, for example, twisting. Moreover, the operation of returning the folding door in the folding limit position to the original V-shaped position in plan view must be relatively moved in a direction in which the two door bodies are separated from each other, which is not easy.

しかるに、前記必須構成要件及びを具備する本考
案の構成によれば、開動操作時に折れ戸が折り畳み限界
姿勢に切り替わってしまうことはなく、確実に平面視Ｖ
の字形姿勢に保持して円滑に開動させることができ、さ
らに、開動限位置にある折れ戸は必要に応じて人為的に
折り畳み限界姿勢に切り換えることが可能であるにもか
かわらず、閉動操作時に平面視Ｖの字形姿勢に戻すため
の特別な操作を行う必要もなく、確実に平面視Ｖの字形
姿勢の保持して円滑に閉動させることができるのであ
る。However, according to the configuration of the present invention having the above essential components, the folding door does not switch to the folding limit position at the time of the opening operation, and it is ensured that the folding door can be seen in the plan view.
Can be opened smoothly by holding it in the V-shape, and the folding door in the opening limit position can be manually switched to the folding limit position as required, but the closing operation In some cases, it is not necessary to perform a special operation for returning to the V-shaped posture in plan view, and it is possible to securely close and smoothly hold the V-shaped posture in plan view.

【図面の簡単な説明】 第１図は折れ戸を説明する概略平面図、第２図は同正面
図、第３図は使用される蝶番の背面図、第４図は同蝶番
の底面図、第５図は同蝶番のクリック機構を説明する一
部横断底面図、第６図は第５図の要部の縦断面図、第７
図は第６図のＸ−Ｘ線断面図である。 1A,1B……戸本体、2A〜2C……蝶番、３……上部ガイド
レール、4a,4b……吊下用水平軸ホィール、５……下部
ガイドレール、6a,6b……振れ止め用ローラー、7a,7b…
…取付板、８……支軸、９……付勢手段、12……当接部
材、12a……当接端部、13……被係止突起、14……付勢
手段本体、15……可動体、16……可動当接部材、17a,17
b……圧縮コイルスプリング、19……ストッパー用ビ
ス、24……係止突起部、25……傾斜カム面、Ａ……展開
姿勢、Ｂ……平面視Ｖの字形姿勢、Ｃ……折り畳み限界
姿勢。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view for explaining a folding door, FIG. 2 is a front view thereof, FIG. 3 is a rear view of a hinge used, FIG. 4 is a bottom view of the hinge, FIG. 5 is a partial cross-sectional bottom view for explaining the click mechanism of the hinge, FIG. 6 is a longitudinal sectional view of a main part of FIG.
The figure is a sectional view taken along line XX of FIG. 1A, 1B… Door body, 2A-2C… Hinge, 3… Upper guide rail, 4a, 4b… Horizontal axis wheel for suspension, 5… Lower guide rail, 6a, 6b… Roller for anti-sway , 7a, 7b…
... Mounting plate, 8 ... Spindle, 9 ... Biasing means, 12 ... Contact member, 12a ... Contact end, 13 ... Protrusion to be locked, 14 ... Biasing means body, 15 ... … Movable body, 16… movable contact member, 17a, 17
b: Compression coil spring, 19: Screw for stopper, 24: Locking projection, 25: Inclined cam surface, A: Deployment position, B: V-shaped position in plan view, C: Folding limit posture.

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項１】蝶番により展開折り畳み自在に連結した２
枚の戸本体から成る折れ戸の上部両端を上部ガイドレー
ルに移動可能に吊り下げると共に下部両端を下部ガイド
レールに移動可能に案内せしめた折れ戸装置であって、
付勢手段を備え、当該付勢手段は、両戸本体に装着され
た一対の当接部材と、スプリングとを備え、両当接部材
の何れか一方は一定範囲内移動可能に支持されて、前記
スプリングにより一方向に付勢され、両当接部材の何れ
か一方は他方の当接部材の当接端部が当接する傾斜カム
面を備え、当該当接端部と傾斜カム面とは、両戸本体が
互いに重なる折り畳み限界姿勢より一定角度手前の平面
視Ｖの字形姿勢から前記折り畳み限界姿勢までの一定角
度範囲内にあるとき、前記スプリングの付勢力で互いに
圧接して、その反力で両戸本体を展開方向に付勢するも
ので、前記折り畳み限界姿勢を保持させる係合部を備え
ず、前記スプリングの付勢力は、前記折れ戸を折り畳み
状態で左右に横動させるとき、折れ戸が前記折り畳み限
界姿勢になるのを阻止し得る強さとした折れ戸装置。1. An unfoldable and foldably connected 2 by hinges.
A folding door device in which upper ends of a folding door composed of a single door body are movably suspended on an upper guide rail and lower ends are movably guided on a lower guide rail,
A biasing means, the biasing means includes a pair of abutting members mounted on the two-door body, and a spring, one of the abutting members is supported movably within a certain range, The spring is biased in one direction, and one of the two contact members has an inclined cam surface with which the contact end of the other contact member contacts, and the contact end and the inclined cam surface are When the both door bodies are within a certain angle range from the V-shaped posture in a plan view V, which is a certain angle before the overlapping folding limit posture, to the folding limit posture, they are pressed against each other by the urging force of the spring, and the reaction force thereof. It does not include an engaging portion for holding the folding limit posture, and the biasing force of the spring causes the folding door to move laterally left and right in the folded state. Is in the folding limit position Sealed can strength and the folding door system.