JP2007162428A

JP2007162428A - Structure of opening/closing body equipped with obstacle sensor

Info

Publication number: JP2007162428A
Application number: JP2005363765A
Authority: JP
Inventors: Hidemasa Okada; 秀正岡田
Original assignee: Bunka Shutter Co Ltd
Current assignee: Bunka Shutter Co Ltd
Priority date: 2005-12-16
Filing date: 2005-12-16
Publication date: 2007-06-28

Abstract

PROBLEM TO BE SOLVED: To provide a structure of an opening/closing body equipped with an obstacle sensor, which facilitates the removal of an obstacle caught in the opening/closing body, after a shutter is stopped by sensing the obstacle. SOLUTION: In this structure of the opening/closing body 4 equipped with the obstacle sensor 1, during the closing motion of the opening/closing body 4, a sensing piece 16, which is provided at the closing-motion-direction leading end of the opening/closing body 4, abuts on the obstacle, so that an anti-closing-direction movable state of the sensing piece 16 can be sensed for the stop of the closing motion of the opening/closing body 4. The opening/closing body 4 is provided with a swing part 45 which enables the leading-end side of the opening/closing body 4 to be turned to at least either of the front and back sides of the opening/closing body, after the sensing piece 16 can be moved. COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、電動シャッターなどの建物の開口に付設される開閉体の安全機構として用いられる障害物感知装置を備えた開閉体の構造に関する。 The present invention relates to a structure of an opening / closing body provided with an obstacle sensing device used as a safety mechanism of an opening / closing body attached to an opening of a building such as an electric shutter.

建物の開口に付設される電動シャッターなどは、一般的にシャッターを構成するスラットカーテンが開口の閉鎖のために上方より降下するが、その際、スラットカーテンの真下に物品あるいは人などがある場合、この物品や人が障害物となり、この障害物がスラットカーテンと床面との間に挟まれ、損傷事故を起こす危険がある。 The electric shutter attached to the opening of the building generally has a slat curtain that constitutes the shutter descends from above to close the opening. At that time, if there is an article or a person directly under the slat curtain, There is a risk that this article or person becomes an obstacle, and this obstacle is sandwiched between the slat curtain and the floor, causing a damage accident.

このような事故を未然に防ぐために、特許文献１に開示されれているようなシャッターの障害物感知装置が考案されている。この障害物感知装置は、スラットカーテンの最下端の水切となる座板部分に、下面が開口する断面略コ字形状の化粧カバーと、この化粧カバーの下面に上下動自在に懸垂された可動底板（以下、「感知片」という。）と、その内空に配設されたマイクロスイッチとを構成させ、このマイクロスイッチによって障害物に当接した感知片の浮き上がりを検出する構造となっている。
実公平１−３７１１１号公報 In order to prevent such an accident, an obstacle detection device for a shutter as disclosed in Patent Document 1 has been devised. This obstacle sensing device includes a decorative cover having a substantially U-shaped cross-section with a lower surface opened on a seat plate portion that is a drainage at the lowermost end of the slat curtain, and a movable bottom plate that is suspended vertically on the lower surface of the decorative cover. (Hereinafter referred to as “sensing piece”) and a microswitch disposed in the interior thereof, and the microswitch is configured to detect the lifting of the sensing piece that is in contact with the obstacle.
Japanese Utility Model Publication No. 1-37111

上記した従来の障害物感知装置は、シャッター下降時に、感知片が障害物に接触すると、感知片の浮き上がりによってマイクロスイッチが作動し、障害物感知信号が開閉制御部へと送出されることで、シャッターがその場で停止される。したがって、障害物が除去されると、マイクロスイッチが非感知状態に復帰し、再度下降を開始する。また、障害物を感知すると、シャッターが反転上昇されて停止するタイプの電動シャッターもある。
ところが、火災発生時に防火区画を形成するための防火シャッターは、障害物の感知時のみに停止する機能しか有しない。一般的に、防火シャッターの場合、下降によって建物開口が閉鎖された場合、その側部に位置する非常用専用扉からの通り抜けが可能となる。
しかしながら、緊急避難時に、シャッターを潜ろうとしたり、悪戯等によってシャッターが下降された場合、図１５に示すように、障害物Ｂが凹凸形状でその凹部Ｂａがシャッター５００の感知片５０１によって挟まれると、シャッター５００はその場で停止するものの、反転上昇されないため、図１６に示すように、感知片５０１の僅かな浮き上がり（反閉鎖方向の可動）距離分しか間隙ｄが形成されず、凸部Ｂｂが引っ掛かり、障害物Ｂの除去が困難となる。これに加え、障害物が除去できなければ、シャッター最下端と床部とに間隙が形成されたままとなり、防火区画も未形成となる問題が生じた。 In the above-described conventional obstacle sensing device, when the sensing piece comes into contact with the obstacle when the shutter is lowered, the micro switch is activated by the lifting of the sensing piece, and the obstacle sensing signal is sent to the open / close control unit. The shutter is stopped on the spot. Therefore, when the obstacle is removed, the microswitch returns to the non-sensing state and starts to descend again. There is also an electric shutter of the type that stops when the obstacle is sensed and the shutter is reversed and raised.
However, a fire shutter for forming a fire protection section when a fire occurs has only a function of stopping only when an obstacle is detected. In general, in the case of a fire shutter, when a building opening is closed by lowering, it is possible to pass through an emergency door located on the side of the opening.
However, when an emergency evacuation tries to dive the shutter or the shutter is lowered due to mischief or the like, as shown in FIG. 15, the obstacle B is uneven and the recess Ba is sandwiched between the sensing pieces 501 of the shutter 500. Then, the shutter 500 stops on the spot, but is not reversed and lifted. As shown in FIG. 16, the gap d is formed only by a slight lift (movable in the anti-closing direction) distance of the sensing piece 501, and the convex portion Bb is caught and it becomes difficult to remove the obstacle B. In addition to this, if the obstacle could not be removed, there was a problem that a gap was still formed between the lowermost end of the shutter and the floor, and the fire prevention compartment was not formed.

本発明は上記状況に鑑みてなされたもので、障害物感知によりシャッターが停止した後の開閉体に挟まった障害物の除去が容易となる障害物感知装置を備えた開閉体の構造を提供し、もって、安全性の向上、及び防火区画形成の信頼性向上を図ることを目的とする。 The present invention has been made in view of the above situation, and provides a structure of an opening / closing body including an obstacle sensing device that makes it easy to remove an obstacle sandwiched between the opening / closing body after the shutter is stopped by obstacle sensing. Therefore, it aims at improving the safety and improving the reliability of forming the fire protection compartment.

次に、上記の課題を解決するための手段を、実施の形態に対応する図面を参照して説明する。
本発明の請求項１記載の障害物感知装置を備えた開閉体の構造は、開閉体４の閉動方向先端に設けられた感知片１６が障害物Ｂに当接することで該感知片１６の反閉鎖方向の可動が感知されて、前記開閉体４の閉動を停止させる障害物感知装置１を備えた開閉体４の構造であって、
前記感知片１６の可動の後にさらに前記開閉体４の先端側を開閉体表裏面の少なくともいずれか一方側へ回転可能とする揺動部４５が前記開閉体４に設けられたことを特徴とする。 Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The structure of the opening / closing body provided with the obstacle sensing device according to claim 1 of the present invention is such that the sensing piece 16 provided at the front end in the closing direction of the opening / closing body 4 abuts against the obstacle B so that the sensing piece 16 The structure of the opening / closing body 4 provided with the obstacle sensing device 1 that detects the movement in the anti-closing direction and stops the closing movement of the opening / closing body 4,
The opening / closing body 4 is provided with a swinging portion 45 that further rotates the front end side of the opening / closing body 4 to at least one of the front and back surfaces of the opening / closing body after the sensing piece 16 is movable. .

この障害物感知装置を備えた開閉体の構造では、開閉体４の先端側が表裏面のいずれか一方側へ揺動され、障害物Ｂとの間に間隙Ｓが形成されることにより、例えば凹凸形状の凹部Ｂａが挟まれた障害物Ｂであっても、形成された間隙Ｓに凸部Ｂｂが通過可能となる。 In the structure of the opening / closing body provided with this obstacle sensing device, the front end side of the opening / closing body 4 is swung to either one of the front and back surfaces, and a gap S is formed between the obstacle B and, for example, unevenness. Even if the obstacle B is sandwiched between the concave portions Ba, the convex portion Bb can pass through the formed gap S.

請求項２記載の障害物感知装置を備えた開閉体の構造は、前記先端側を除く前記開閉体４の両側縁部が、一対のガイド部材４３のそれぞれに案内され、
揺動自在となった前記先端側に当接して該先端側の開閉体表裏面の少なくともいずれか一方側への回転を規制する規制片４６が、前記開閉体４に設けられたことを特徴とする。 In the structure of the opening / closing body provided with the obstacle sensing device according to claim 2, both side edges of the opening / closing body 4 excluding the tip side are guided by the pair of guide members 43, respectively.
The opening / closing body 4 is provided with a restricting piece 46 that abuts the swingable tip end and restricts rotation to at least one of the front and back surfaces of the opening / closing body on the distal end side. To do.

この障害物感知装置を備えた開閉体の構造では、開閉体４の先端側が規制片４６に当接されることにより、開閉体表裏面の一方側への回転が規制される。 In the structure of the opening / closing body provided with the obstacle sensing device, the front end side of the opening / closing body 4 is brought into contact with the regulating piece 46, whereby the rotation of the opening / closing body to the one side of the front and back surfaces is restricted.

請求項３記載の障害物感知装置を備えた開閉体の構造は、前記規制片４６には、前記先端側の端面を覆うカバー片４９が設けられたことを特徴とする。 The structure of the opening / closing body provided with the obstacle sensing device according to claim 3 is characterized in that the restriction piece 46 is provided with a cover piece 49 that covers the end face on the distal end side.

この障害物感知装置を備えた開閉体の構造では、例えば、先端側が例えば引き抜き材を素材とした構造等の座板５７の場合に、その座板５７の両端開口が規制片４６に設けたカバー片４９によって覆われ、見栄えが低下しない。 In the structure of the opening / closing body provided with this obstacle sensing device, for example, in the case where the front end is a seat plate 57 having a structure made of, for example, a drawing material, both ends of the seat plate 57 are provided on the restriction piece 46. Covered by the piece 49, the appearance does not deteriorate.

請求項４記載の障害物感知装置を備えた開閉体の構造は、前記先端側の前記回転を検出する検知手段５９が前記開閉体４に設けられたことを特徴とする。 The structure of the opening / closing body provided with the obstacle sensing device according to claim 4 is characterized in that the opening / closing body 4 is provided with detecting means 59 for detecting the rotation of the tip side.

この障害物感知装置を備えた開閉体の構造では、感知片１６が可動されて開閉体４が停止された後、揺動部４５が回転されて感知片１６が障害物Ｂから離反されても、検知手段５９からの信号によって、障害物Ｂの感知状態を保持し続けるなど所定の制御が行われる。なお、前記所定の制御は、開閉体を開放動作させるなどの閉鎖動作以外の他の制御でも良い。 In the structure of the opening / closing body provided with this obstacle sensing device, even if the sensing piece 16 is moved and the opening / closing body 4 is stopped, the swinging portion 45 is rotated to move the sensing piece 16 away from the obstacle B. In response to a signal from the detection means 59, predetermined control is performed such as keeping the obstacle B sensed. The predetermined control may be other control than the closing operation such as opening the opening / closing body.

請求項５記載の障害物感知装置を備えた開閉体の構造は、前記規制片４６を前記反閉鎖方向へ可動可能とするスライド部５１，５２が前記開閉体４に設けられたことを特徴とする。 The structure of the opening / closing body provided with the obstacle sensing device according to claim 5 is characterized in that the opening / closing body 4 is provided with slide portions 51 and 52 that allow the restriction piece 46 to move in the anti-closing direction. To do.

この障害物感知装置を備えた開閉体の構造では、開閉体４が着地すると、感知片１６が反閉鎖方向へ可動すると共に、規制片４６も反閉鎖方向へと可動する。これにより、規制片４６が非スライド構造の場合では着地によっては可動しなかった感知片１６が反閉鎖方向へ可動可能となる。 In the structure of the opening / closing body provided with this obstacle sensing device, when the opening / closing body 4 lands, the sensing piece 16 moves in the anti-closing direction and the regulating piece 46 also moves in the anti-closing direction. As a result, when the regulating piece 46 has a non-sliding structure, the sensing piece 16 that did not move depending on the landing can be moved in the anti-closing direction.

請求項６記載の障害物感知装置を備えた開閉体の構造は、前記障害物感知装置１による障害物感知時のみに前記揺動部４５の回転を可能にする回転許可手段６３が前記開閉体４に設けられたことを特徴とする。 The structure of the opening / closing body provided with the obstacle sensing device according to claim 6 is characterized in that the rotation permission means 63 that allows the swinging portion 45 to rotate only when the obstacle sensing device 1 senses an obstacle. 4 is provided.

この障害物感知装置を備えた開閉体の構造では、障害物Ｂの感知前に、揺動部４５が誤動作されることが防止され、揺動部４５が先に回転されることにより、障害物挟み込み後に、新たな間隙Ｓが形成不能となる状態が回避される。 In the structure of the opening / closing body provided with the obstacle sensing device, the swinging portion 45 is prevented from malfunctioning before the obstacle B is sensed, and the obstacle 45 A state in which a new gap S cannot be formed after the pinching is avoided.

請求項７記載の障害物感知装置を備えた開閉体の構造は、前記開閉体４の閉動方向先端に座板５７が設けられ、
前記開閉体４のスラットと該座板５７との間に前記揺動部４５が配設されたことを特徴とする。 In the structure of the opening / closing body provided with the obstacle sensing device according to claim 7, a seat plate 57 is provided at the front end of the opening / closing body 4 in the closing direction,
The swinging portion 45 is disposed between the slat of the opening / closing body 4 and the seat plate 57.

この障害物感知装置を備えた開閉体の構造では、障害物除去のための揺動部４５が、開閉体先端の座板近傍に集中配置可能となる。 In the structure of the opening / closing body provided with this obstacle sensing device, the swinging part 45 for removing the obstacle can be concentratedly arranged in the vicinity of the seat plate at the front end of the opening / closing body.

本発明に係る請求項１記載の障害物感知装置を備えた開閉体の構造によれば、感知片の可動の後にさらに開閉体の先端側を開閉体表裏面の少なくともいずれか一方側へ回転可能とする揺動部が開閉体に設けられたので、開閉体の先端側を表裏面のいずれか一方側へ揺動することによって障害物との間に間隙を形成することができ、例えば凹凸形状の凹部が挟まれた障害物、或いは凹状に形状が変化してしまうような柔軟性のある障害物等であっても、形成された間隙に凸部を通過させることで、容易な除去を可能にすることができる。 According to the structure of the opening / closing body provided with the obstacle sensing device according to the first aspect of the present invention, the front end side of the opening / closing body can be further rotated to at least one of the front and back surfaces of the opening / closing body after the sensing piece is movable. Since the swing part is provided on the opening / closing body, a gap can be formed between the obstacle and the obstacle by swinging the front end side of the opening / closing body to either one of the front and back surfaces. Even if there are obstacles that are sandwiched between concave parts, or flexible obstacles that change the shape of the concave parts, they can be easily removed by passing the convex parts through the formed gap. Can be.

請求項２記載の障害物感知装置を備えた開閉体の構造によれば、揺動自在となった先端側に当接して先端側の開閉体表裏面の少なくともいずれか一方側への回転を規制する規制片が、開閉体から延出されたので、先端側を規制片に当接することにより、開閉体表裏面の一方側への回転を規制して、開閉体の先端側が不必要に振れる或いは揺れる等を起こして安定しないことを防止できる。 According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 2, the rotation to at least one of the front and back surfaces of the opening / closing body at the front end side is regulated by contacting the swingable front end side. Since the regulating piece to be extended from the opening / closing body, the rotation of the opening / closing body to the one side of the opening / closing body is regulated by contacting the leading end side to the regulating piece, and the leading end side of the opening / closing body swings unnecessarily. It can be prevented from becoming unstable due to shaking.

請求項３記載の障害物感知装置を備えた開閉体の構造によれば、規制片に、先端側の端面を覆うカバー片が設けられたので、例えば、先端側が例えば引き抜き材を素材とした構造等の座板の場合に、その座板の両端の開口部分を規制片に設けたカバー片によって覆うことができ、専用の化粧部材を用いることなく、振れ止め用の規制片を利用して少ない部品で開閉体の見栄えを良くすることができ、また塵埃の侵入などを防ぐことが可能となる。 According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 3, the cover piece that covers the end face on the front end side is provided on the restriction piece. In the case of a seat plate such as a seat plate, the opening portions at both ends of the seat plate can be covered with a cover piece provided on the regulation piece, and there are few using a regulation piece for steadying without using a dedicated decorative member The appearance of the opening / closing body can be improved with the parts, and the entry of dust and the like can be prevented.

請求項４記載の障害物感知装置を備えた開閉体の構造によれば、先端側の回転を検出する検知手段が開閉体に設けられたので、感知片が可動されて開閉体が停止された後、揺動部が回転されて感知片が障害物から離反されても、検知手段からの信号によって、障害物の感知状態を保持し続けるなど所定の制御が行われる。なお、前記所定の制御は、開閉体を開放動作させるなどの閉鎖動作以外の他の制御でも良い。これにより、開閉体の再閉動による障害物の挟み込みが防止される。 According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 4, since the opening / closing body is provided with the detecting means for detecting the rotation on the tip side, the sensing piece is moved and the opening / closing body is stopped. After that, even if the swinging portion is rotated and the sensing piece is separated from the obstacle, predetermined control is performed such as keeping the obstacle sensing state by a signal from the sensing means. The predetermined control may be other control than the closing operation such as opening the opening / closing body. This prevents the obstacle from being caught by the reclosing movement of the opening / closing body.

請求項５記載の障害物感知装置を備えた開閉体の構造によれば、規制片を反閉鎖方向へ可動可能とするスライド部が開閉体に設けられたので、開閉体が着地すると、感知片が反閉鎖方向へ可動すると共に、規制片も反閉鎖方向へと可動することとなり、規制片が非スライド構造の場合では着地によっては可動しなかった感知片が反閉鎖方向へ可動可能となる。その結果、感知片が、障害物の感知の他に、着地検出手段としても利用可能となる。開閉体の閉鎖により規制片が移動する軌跡上に障害物が存在する場合には、開閉体が障害物に当接すると、感知片が閉鎖方向へ可動するとともに、規制片も反閉鎖方向へと可動することとなり、規制片が非スライド構造の場合では当接によっては可動しなかった感知片が反閉鎖方向へ可動可能となる。その結果、感知片が障害物感知の妨げになることがなくなり、より確実に障害物が感知できる。 According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 5, since the opening / closing body is provided with the slide portion that allows the regulating piece to move in the anti-closing direction, when the opening / closing body lands, the sensing piece Moves in the anti-closing direction, and the restricting piece also moves in the anti-closing direction. When the restricting piece has a non-sliding structure, the sensing piece that did not move depending on the landing can move in the anti-closing direction. As a result, the sensing piece can be used as a landing detection means in addition to sensing an obstacle. When there is an obstacle on the path of movement of the regulating piece due to closing of the opening / closing body, when the opening / closing body abuts the obstacle, the sensing piece moves in the closing direction and the regulating piece also moves in the anti-closing direction. When the regulating piece has a non-sliding structure, the sensing piece that did not move due to contact can move in the anti-closing direction. As a result, the sensing piece does not hinder obstacle sensing, and the obstacle can be sensed more reliably.

請求項６記載の障害物感知装置を備えた開閉体の構造によれば、障害物感知装置による障害物感知時のみに揺動部の回転を可能にする回転許可手段が開閉体に設けられたので、障害物の感知前に、揺動部が誤動作されることを防止できる。すなわち、揺動部が先に回転されることにより、障害物挟み込み後に、新たな間隙が形成不能となる状態を回避できる。この結果、障害物感知後の回転を確実にして、障害物除去機能の信頼性を向上させることができる。 According to the structure of the opening / closing body provided with the obstacle sensing device according to claim 6, the opening / closing body is provided with the rotation permission means that allows the swinging portion to rotate only when the obstacle sensing device senses the obstacle. Therefore, it is possible to prevent the swinging portion from malfunctioning before the obstacle is detected. That is, a state in which a new gap cannot be formed after the obstacle is caught can be avoided by rotating the swinging portion first. As a result, the rotation after the obstacle detection can be ensured and the reliability of the obstacle removing function can be improved.

請求項７記載の障害物感知装置を備えた開閉体の構造によれば、開閉体の閉動方向先端に座板が設けられ、開閉体のスラットと座板との間に揺動部が配設されたので、障害物除去のための揺動部を、開閉体先端の座板近傍に集中配置できる。これにより、揺動部を、コンパクトに構成できるとともに、メンテナンスも容易にでき、しかも、追加施工による容易な後付も可能になる。 According to the structure of the opening / closing body having the obstacle sensing device according to claim 7, the seat plate is provided at the front end of the opening / closing body in the closing direction, and the swinging portion is disposed between the slat of the opening / closing body and the seat plate. Since it is provided, the swinging part for removing the obstacle can be concentratedly arranged in the vicinity of the seat plate at the front end of the opening / closing body. Thereby, while being able to comprise a rocking | swiveling part compactly, a maintenance can also be performed easily and also the easy retrofitting by additional construction is also attained.

以下、本発明に係る障害物感知装置を備えた開閉体の構造の好適な実施の形態を図面を参照して詳細に説明する。
図１は本発明に係る開閉体の構造を有したシャッターの概略正面図、図２は図１の要部拡大正面図、図３は図２のＩ−Ｉ矢視図、図４は図３のII−II矢視図、図５は図３のIII −III 矢視図、図６は蝶番部の縦断面図である。
本発明に係る障害物感知装置を備えた開閉体の構造は、先端部分、例えば、戸先、昇降下端、水切り、座板等に障害物感知装置を有した開閉体、すなわち建物開口の一方から他方へ移動する開閉体、例えば引き戸等も含む全般に適用可能なものである。また、開閉体の開閉方向は、上下（昇降）方向、水平方向、斜め方向等であってよく、上下の場合の閉動方向も、下降で閉鎖、上昇で閉鎖のいずれであってもよい。さらに、開閉体の可動形式としては、スラットカーテンによる繰り出し・巻き取り、或いは上下引き戸・横引き引き戸等の昇降や往復移動であってもよい。なお、この開閉体は、少なくとも閉鎖できるものであればよい。以下の実施の形態では、開閉体の構造を、昇降シャッターに適用した場合を例に説明する。 Preferred embodiments of the structure of an opening / closing body provided with an obstacle sensing device according to the present invention will be described below in detail with reference to the drawings.
1 is a schematic front view of a shutter having a structure of an opening / closing body according to the present invention, FIG. 2 is an enlarged front view of a main part of FIG. 1, FIG. 3 is a view taken along arrows II in FIG. II-II arrow view, FIG. 5 is a III-III arrow view of FIG. 3, and FIG. 6 is a longitudinal sectional view of the hinge part.
The structure of the opening / closing body provided with the obstacle sensing device according to the present invention is such that the opening / closing body having the obstacle sensing device at the front end portion, for example, the door tip, the lower / lower end, the drainer, the seat plate, etc. The present invention can be applied generally to an opening / closing body that moves to the other side, such as a sliding door. In addition, the opening / closing direction of the opening / closing body may be an up / down (lifting / lowering) direction, a horizontal direction, an oblique direction, or the like. Furthermore, the movable form of the opening / closing body may be a payout / winding by a slat curtain, or an up / down or reciprocating movement of a vertical sliding door / horizontal sliding door. The opening / closing body may be at least capable of being closed. In the following embodiments, a case where the structure of the opening / closing body is applied to a lifting shutter will be described as an example.

まず、本発明の要部である開閉体の構造の説明に先立ち、開閉体に設けられる障害物感知装置についてその概略を説明する。
障害物感知装置１は、図１に示すように、建物開口２に配設される電動シャッター３などに設けられる。この電動シャッター３は、開閉体としてスラットカーテン４より構成される防火シャッターや、開閉体としてパネル板より構成されるパネルシャッター（図示せず）など、或いは、シート、スクリーン、パイプ、ネットなど、またそれらを複合して構成されるもので、開閉体としてのスラットカーテンの移動端となる最下端である水切部分に、障害物感知装置１が配設される。 First, prior to the description of the structure of the opening / closing body that is the main part of the present invention, an outline of the obstacle sensing device provided in the opening / closing body will be described.
As shown in FIG. 1, the obstacle sensing device 1 is provided on an electric shutter 3 disposed in a building opening 2 or the like. The electric shutter 3 includes a fire shutter configured by a slat curtain 4 as an opening / closing body, a panel shutter (not shown) configured by a panel plate as an opening / closing body, a sheet, a screen, a pipe, a net, etc. The obstacle sensing device 1 is arranged at a draining portion which is a lowermost end which is a moving end of a slat curtain as an opening / closing body.

この障害物感知装置１は、図６に示すように、枠体５と、感知片１６と、作動片２２と、検知手段３２とで大略構成されている。 As shown in FIG. 6, the obstacle sensing device 1 is generally composed of a frame 5, a sensing piece 16, an operating piece 22, and a sensing means 32.

まず、枠体５は、板金材からなるカバー部材４１によって外周が覆われる。枠体５は、上板８と、上板８の両端縁より垂直下方に延出するとともに、互いに対向する一対の側板９，１０とを有し、下方（床面）となる建物開口２の縁部２ａに向かうとともに、建物開口２の幅方向を長手方向として連続する溝開口１１が形成された断面略コ字状に形成されている。 First, the outer periphery of the frame 5 is covered with a cover member 41 made of a sheet metal material. The frame 5 has a top plate 8 and a pair of side plates 9 and 10 that extend vertically downward from both end edges of the top plate 8 and face each other. The cross section is formed in a substantially U-shaped cross-section in which a groove opening 11 is formed which is directed toward the edge 2a and is continuous with the width direction of the building opening 2 as a longitudinal direction.

この枠体５の溝開口１１には、この溝開口１１の両縁部をなす各側板９，１０の下端より、この枠体５の溝開口１１の互いに内方向へ延出して、この溝開口１１の開口幅を狭めるように、一対の支持条片１２が枠体５と一体に形成され設けられている。 In the groove opening 11 of the frame body 5, the groove openings 11 of the frame body 5 extend inward from the lower ends of the side plates 9 and 10 that form both edges of the groove opening 11. A pair of support strips 12 are formed integrally with the frame body 5 so as to narrow the opening width of 11.

また、この枠体５の両側板９，１０の内側面９ａ，１０ａには、互いに対向する中途位置に、枠体５の内方向に水平に延出するように一対の片部１３，１４が、枠体５の長手方向に連続して設けられている。これら片部１３，１４の一方の内側面９ａに設けられる一方の片部１３は、先端に断面円形の軸部１５が膨出形成されている。 Further, on the inner side surfaces 9a, 10a of the both side plates 9, 10 of the frame 5, a pair of pieces 13, 14 are provided at the midway positions facing each other so as to extend horizontally inward of the frame 5. The frame 5 is provided continuously in the longitudinal direction. One piece portion 13 provided on one inner side surface 9a of these piece portions 13 and 14 has a shaft portion 15 having a circular cross section formed at the tip thereof.

次に感知片１６は、前記枠体５の長手方向に沿って形成され、この枠体５の溝開口１１を閉塞可能な平板状の基板１７を有するとともに、幅方向両端縁１７ａ，１７ｂに、この基板１７より上面方向に屈曲部１８を介して一対の摺動側板１９が略垂直上方向に突出形成されている。 Next, the sensing piece 16 is formed along the longitudinal direction of the frame body 5 and has a flat plate-like substrate 17 capable of closing the groove opening 11 of the frame body 5, and at both edges 17 a and 17 b in the width direction, A pair of sliding side plates 19 are formed so as to protrude substantially vertically upward from the substrate 17 via a bent portion 18 in the upper surface direction.

これら摺動側板１９の先端である上縁１９ａには、幅方向の外方向に延出するフランジ状の突条２０，２１が、各摺動側板１９と一体に設けられ、この摺動側板１９とともに略Ｌ字状に形成されている。 Flange-like ridges 20 and 21 extending outward in the width direction are provided integrally with each sliding side plate 19 on the upper edge 19a which is the tip of these sliding side plates 19, and this sliding side plate 19 In addition, it is formed in a substantially L shape.

そして、この感知片１６は、一対の突条２０，２１が、前記枠体５の各支持条片１２に掛かって懸垂状態となるように、枠体５に取り付け支持され、これら支持条片１２間に上縁１９ａ側が枠体５の内部に位置し、枠体５の溝開口１１に対して出入り自在、すなわち支持条片１２間を両摺動側板１９が上下動自在となるように設けられるようになっている。 The sensing piece 16 is attached to and supported by the frame 5 so that the pair of protrusions 20 and 21 are suspended on the support strips 12 of the frame 5. The upper edge 19a is located inside the frame body 5 so that it can enter and exit the groove opening 11 of the frame body 5, that is, the sliding side plates 19 are provided so as to be movable up and down between the support strips 12. It is like that.

次に、作動片２２は、前記感知片１６と同様に枠体５の長手方向に全通する長尺な部材で、基端部２３に断面Ｃ字状の軸受部２４が形成され、この基端部２３から中空な中途部２５を介して先端に長短一対の当接部２６，２７が延出形成されている。 Next, the operating piece 22 is a long member that passes through in the longitudinal direction of the frame 5 similarly to the sensing piece 16, and a bearing portion 24 having a C-shaped cross section is formed at the base end portion 23. A pair of long and short contact portions 26 and 27 are formed to extend from the end portion 23 through a hollow midway portion 25 at the tip end.

本実施の形態では、中途部２５の中空部２８の形状が、径の異なる１／４円弧よりなる扇形状を２つ組み合わせて連続した空間部分を形成した略Ｓ字状に形成され、軸受部２４を略中心とする上向き湾曲面２９と、この上向き湾曲面２９と逆向きの下向き湾曲面３０とを有しており、各当接部２６，２７の一方の当接部２６は、基端部の軸受部２４に対して中空部２８を介し、かつ上向き湾曲面２９を介して真直に延出する平板状に形成され、また、他方の当接部２７は、一方の当接部２６より下方に位置し、中空部２８の下向き湾曲面３０に連続する湾曲した短尺な板状に形成されている。なお、一方の当接部２６の中途部２５寄りの上面には、略蒲鉾状の接触凸部３１が形成されている。 In the present embodiment, the shape of the hollow portion 28 of the midway portion 25 is formed in a substantially S shape in which a continuous space portion is formed by combining two fan shapes made of ¼ arcs having different diameters, and the bearing portion. 24 has an upward curved surface 29 having an approximate center 24, and a downward curved surface 30 opposite to the upward curved surface 29. One contact portion 26 of each contact portion 26, 27 has a proximal end. It is formed in a flat plate shape that extends straight through the hollow portion 28 and the upward curved surface 29 with respect to the bearing portion 24 of the portion, and the other abutting portion 27 is formed by the one abutting portion 26. It is formed in the shape of a short, curved plate located below and continuing to the downward curved surface 30 of the hollow portion 28. A substantially hook-shaped contact convex portion 31 is formed on the upper surface of the one abutting portion 26 near the midway portion 25.

そして、この作動片２２は、基端部２３の軸受部２４が、前記枠体５の一方の内側面９ａに突設された軸部１５に嵌合されて軸支され、この枠体５内にて先端側の各当接部２６，２７が上下方向に揺動自在とされ、一方の当接部２６が、感知片１６の一方の突条２０側の上縁に当接し、また、他方の当接部２７が、感知片１６の他方の突条２１側の上縁に当接する。なお、本実施の形態では、一方の当接部２６は、その先端縁が、作動片２２の基端部２３から離れた位置の一方の突条（図６中左側）２０上面に当接し、他方の当接部２７は、その先端側外側面が、作動片２２の基端部２３に近い位置の他方の突条（図６中右側）２１の角部分に当接するようになっている。 The working piece 22 is pivotally supported by a shaft portion 15 projecting from one inner side surface 9a of the frame body 5 at the bearing portion 24 of the base end portion 23. The abutment portions 26 and 27 on the distal end side are swingable in the vertical direction, and one abutment portion 26 abuts on the upper edge of the sensing piece 16 on the one ridge 20 side, and the other The abutment portion 27 abuts on the upper edge of the sensing piece 16 on the other protrusion 21 side. In the present embodiment, one abutment portion 26 abuts the top edge of one ridge (left side in FIG. 6) 20 at a position away from the base end portion 23 of the operating piece 22, The other abutment portion 27 is configured such that a distal end side outer surface abuts on a corner portion of the other protrusion 21 (right side in FIG. 6) at a position close to the base end portion 23 of the operating piece 22.

次に検知手段３２は、作動子３３が下向きに突出して配設されるマイクロスイッチよりなり、枠体５内の上板８下面に固定されているブラケット３４を介して所定の角度に傾けて設けられている。 Next, the detection means 32 is composed of a micro switch in which an actuator 33 projects downward, and is provided at a predetermined angle via a bracket 34 fixed to the lower surface of the upper plate 8 in the frame 5. It has been.

このマイクロスイッチ３２の傾き角度は、前記作動片２２の揺動による一方の当接部２６の上面に形成されている接触凸部３１の移動軌跡の接線方向と略同方向となるように設定され、すなわちこのマイクロスイッチ３２の作動子３３の真直な進退方向が前記接線方向と略同方向となるように設定され、このマイクロスイッチ３２が配設されている。 The inclination angle of the micro switch 32 is set so as to be substantially the same as the tangential direction of the movement locus of the contact convex portion 31 formed on the upper surface of the one contact portion 26 by the swing of the operating piece 22. That is, the straight forward and backward direction of the actuator 33 of the micro switch 32 is set to be substantially the same as the tangential direction, and the micro switch 32 is disposed.

なお、このマイクロスイッチ３２の作動子３３は、マイクロスイッチ３２自体のアクチュエータ部３５と、このアクチュエータ部３５に常に接触状態とされる中途が屈曲形成された略Ｖ字状の板バネ３６とで構成され、この板バネ３６の先端は、作動片２２の一方の当接部２６上面の接触凸部３１に対向状態となるように設定されている。そして、このマイクロスイッチ３２は、作動片２２の揺動、すなわち作動片２２の枠体５内方向の揺動を検知する。 The actuator 33 of the microswitch 32 is composed of an actuator portion 35 of the microswitch 32 itself and a substantially V-shaped leaf spring 36 that is bent in the middle and always in contact with the actuator portion 35. The tip of the leaf spring 36 is set so as to face the contact convex portion 31 on the upper surface of the one abutting portion 26 of the operating piece 22. The micro switch 32 detects the swing of the operating piece 22, that is, the swing of the operating piece 22 in the frame body 5.

なお、このマイクロスイッチ３２は、枠体５の長手方向の一端近傍や他端近傍や中央部など１か所以上に配設され、また、図１に示すように、枠体５の上板８上面に図示しない取付ブラケットを介して固定された送信機３８と電気的に結線されている。 The microswitch 32 is disposed at one or more locations in the vicinity of one end of the frame 5 in the longitudinal direction, in the vicinity of the other end, and in the central portion, and as shown in FIG. The transmitter 38 is electrically connected to the upper surface via a mounting bracket (not shown).

この送信機３８は、図１に示すように、建物開口２の上縁に配設されるスラットカーテン４の収納部３ａ底面に設けられた受信機３９と対向して配設されている。そして、この受信機３９は図示しない制御装置に接続されており、スラットカーテン４の開動・閉動・停止の制御が行われる。 As shown in FIG. 1, the transmitter 38 is disposed so as to face a receiver 39 provided on the bottom surface of the storage portion 3 a of the slat curtain 4 disposed on the upper edge of the building opening 2. The receiver 39 is connected to a control device (not shown), and controls the opening / closing / stopping of the slat curtain 4.

次に、本発明の要部である開閉体の構造について説明する。
上記のように、障害物感知装置１は、スラットカーテン４の閉動時に、スラットカーテン４の閉動方向先端に設けられた感知片１６が障害物に当たることで、感知片１６の反閉鎖方向の可動が感知されて、スラットカーテン４の閉動を停止させるよう作動する。本実施の形態による開閉体の構造では、感知片１６の可動の後に、さらにスラットカーテン４の先端側を開閉体表裏面の少なくともいずれか一方側へ回転可能とする揺動部４５がスラットカーテン４に設けられている。この揺動部４５としては、蝶番を好適に用いることができる。ここで、先端側とは、スラットカーテン４に連結板６を介して吊り持ちされるカバー部材４１より下方の部材側を言う。また、感知片１６の反閉鎖方向の可動とは、感知片１６が連結されているスラットカーテン（開閉体）４に対して、この感知片１６が反閉鎖方向に相対的に移動するということであり、さらには、シャッターカーテン（開閉体）４と感知片１６とが両方とも絶対的には移動していることを含み、どちらか片方が絶対的には移動していて、他方が絶対的に停止していることを含むものである。 Next, the structure of the opening / closing body that is the main part of the present invention will be described.
As described above, the obstacle sensing device 1 is configured such that when the slat curtain 4 is closed, the sensing piece 16 provided at the front end in the closing direction of the slat curtain 4 hits the obstacle, thereby causing the sensing piece 16 in the anti-closing direction. The movement is detected and the slat curtain 4 is actuated to stop closing. In the structure of the opening / closing body according to the present embodiment, after the sensing piece 16 is moved, the swinging portion 45 that further rotates the tip side of the slat curtain 4 to at least one of the front and back surfaces of the opening / closing body. Is provided. A hinge can be preferably used as the swinging portion 45. Here, the front end side means a member side below the cover member 41 suspended from the slat curtain 4 via the connecting plate 6. Further, the movement of the sensing piece 16 in the anti-closing direction means that the sensing piece 16 moves relative to the anti-closing direction with respect to the slat curtain (opening / closing body) 4 to which the sensing piece 16 is connected. In addition, the shutter curtain (opening / closing body) 4 and the sensing piece 16 both include moving absolutely, either one is moving absolutely and the other is absolutely moving It includes things that are stopped.

図２に示すように、先端側を除くスラットカーテン４の両側縁部は、一対のガイド部材としてのガイドレール４３，４３のそれぞれに挿入されて案内される。すなわち、スラットカーテン４の連結板６までが、ガイドレール４３に挿入されている。図例では、スラットカーテン４の連結板６までがガイドレール４３に挿入される。連結板６の左右端には規制片４６，４６が下方向へ向かって延出して取り付けられている。規制片４６は、揺動自在となった先端側に当接して、先端側の開閉体表裏面の少なくともいずれか一方側への回転を規制する。先端側は、両端が規制片４６に当接されることによって、開閉体表裏面の一方側への回転が規制されて、不必要に振れる或いは揺れる等を起こして安定しないことが防止されている。 As shown in FIG. 2, both side edges of the slat curtain 4 excluding the tip side are inserted and guided into guide rails 43 and 43 as a pair of guide members. That is, the connecting plate 6 of the slat curtain 4 is inserted into the guide rail 43. In the illustrated example, the connecting plate 6 of the slat curtain 4 is inserted into the guide rail 43. On the left and right ends of the connecting plate 6, restricting pieces 46, 46 are attached so as to extend downward. The restricting piece 46 abuts on the tip end side that can be swung, and restricts rotation to at least one of the front and back surfaces of the opening / closing body on the tip end side. The leading end side is prevented from being unstable by causing both ends to abut against the regulating piece 46, thereby restricting the rotation of the front and back surfaces of the opening / closing body to one side, causing unnecessary shaking or shaking. .

図３に示すように、ガイドレール４３に挿入された連結板６の端部には振れ止め部材４７ａ，４７ｂが表裏から取り付けられ、振れ止め部材４７ａ，４７ｂはスラットカーテン４の昇降時に、連結板６がガイドレール４３内でガタツクことを抑止する。規制片４６には先端側の端面を覆うカバー片４９が折曲形成され設けられており、左右それぞれのカバー片４９は振れ止め部材４７ａ，４７ｂに固定されている。つまり、規制片４６と振れ止め部材４７ａ，４７ｂとはカバー片４９を介して連結固定されている。規制片４６にカバー片４９が設けられることで、例えば、先端側が引き抜き材からなる座板の場合に、図４に示すように、その座板の両端開口を規制片４６に設けたカバー片４９によって覆うことができ、専用の化粧部材を用いることなく、振れ止め用の規制片４６を利用して少ない部品でスラットカーテン４の見栄えを良くすることができる。また、カバー部材４１によって、ガイドレール４３と、揺動自在となった先端側との間隙、すなわち表裏方向のスリット状の間隙を覆い隠すことができ、全閉時に隙間のない状態を得られる。 As shown in FIG. 3, steady members 47 a and 47 b are attached to the end portion of the connecting plate 6 inserted into the guide rail 43 from the front and back, and the steady members 47 a and 47 b are connected to the connecting plate when the slat curtain 4 is raised and lowered. 6 prevents rattling in the guide rail 43. A cover piece 49 is formed on the restriction piece 46 so as to cover the end face on the front end side, and the left and right cover pieces 49 are fixed to the steadying members 47a and 47b. That is, the restricting piece 46 and the steadying members 47 a and 47 b are connected and fixed via the cover piece 49. By providing the cover piece 49 on the restricting piece 46, for example, in the case of a seat plate made of a drawing material on the tip side, as shown in FIG. Without using a special decorative member, the appearance of the slat curtain 4 can be improved with a small number of parts by using the restraining piece 46 for steadying. Further, the cover member 41 can cover the gap between the guide rail 43 and the swingable tip side, that is, a slit-like gap in the front-back direction, and a state without a gap when fully closed can be obtained.

連結板６と規制片４６との間、連結板６と振れ止め部材４７ａ，４７ｂとの間にはスライド部５１，５２が設けられ、スライド部５１，５２は規制片４６、振れ止め部材４７ａ，４７ｂをスラットカーテン４の反閉鎖方向へ可動可能としている。スライド部５１，５２は、スラットカーテン４の反閉鎖方向に長い複数、本実施の形態では２つの長穴５３，５３と、この長穴５３，５３に係合するピン或いはビス５４，５４とからなる。規制片４６、振れ止め部材４７ａ，４７ｂは、連結板６に貫通されたビス５４，５４が長穴５３，５３を貫通し、その先端にナット５５，５５が螺合されることで、上下方向にスライド自在に連結板６に固定される。通常時、規制片４６、振れ止め部材４７ａ，４７ｂは、図２に示すように、重力によって長穴５３，５３の上端で支持、すなわち吊下状態とされる。この状態で、規制片４６、振れ止め部材４７ａ，４７ｂは、上方へスライド可能となる。 Slide portions 51 and 52 are provided between the connecting plate 6 and the restricting piece 46, and between the connecting plate 6 and the anti-shake members 47a and 47b. The slide portions 51 and 52 include the restricting piece 46, the anti-static member 47a, 47b is movable in the anti-closing direction of the slat curtain 4. The slide portions 51 and 52 are composed of a plurality of long holes 53 and 53 which are long in the anti-closing direction of the slat curtain 4, in this embodiment, two pins 53 and 53, and pins or screws 54 and 54 which engage with the long holes 53 and 53. Become. The restricting piece 46 and the steady rest members 47a and 47b are formed in such a manner that the screws 54 and 54 penetrating the connecting plate 6 pass through the elongated holes 53 and 53, and the nuts 55 and 55 are screwed to the tips thereof, so that the vertical direction It is slidably fixed to the connecting plate 6. Normally, as shown in FIG. 2, the regulating piece 46 and the steadying members 47a and 47b are supported at the upper ends of the elongated holes 53 and 53, that is, are suspended, as shown in FIG. In this state, the restricting piece 46 and the steadying members 47a and 47b can slide upward.

このように、規制片４６、振れ止め部材４７ａ，４７ｂを反閉鎖方向へ可動可能とするスライド部５１，５２がスラットカーテン４に設けられたので、スラットカーテン４が着地すると、感知片１６が反閉鎖方向へ可動すると共に、規制片４６、振れ止め部材４７ａ，４７ｂも反閉鎖方向へと可動することとなり、規制片４６が非スライド構造の場合では着地によっては可動しなかった感知片１６が反閉鎖方向へ可動可能となる。その結果、感知片１６が、障害物の感知の他に、着地検出手段、すなわち、スラットカーテン４の全閉を検知する手段としても利用可能となる。
なお、規制片４６は、座板５７の両端部以外に設けられていてもよい。 As described above, since the slide portions 51 and 52 that enable the restricting piece 46 and the anti-rest members 47a and 47b to move in the anti-closing direction are provided on the slat curtain 4, the sensing piece 16 is anti-reverse when the slat curtain 4 is landed. In addition to being movable in the closing direction, the regulating piece 46 and the steady members 47a and 47b are also moved in the anti-closing direction. In the case where the regulating piece 46 has a non-sliding structure, the sensing piece 16 that did not move depending on the landing is counteracted. It becomes movable in the closing direction. As a result, the sensing piece 16 can be used as a landing detection means, that is, a means for detecting the full closure of the slat curtain 4 in addition to the obstacle sensing.
Note that the restricting piece 46 may be provided at a portion other than both end portions of the seat plate 57.

連結板６によって吊り持ちされるカバー部材４１、枠体５、規制片４６は、座板５７を構成している。このように、スラットカーテン４の閉動方向先端に座板５７が設けられ、スラットカーテン４と座板５７との間に揺動部４５が配設されたので、障害物除去のための揺動部４５を、座板５７の近傍に集中配置できる。これにより、揺動部４５を、コンパクトに構成できるとともに、メンテナンスを容易にでき、しかも、連結板６より下方の部材のみを交換する追加施工による容易な後付も可能にできる。 The cover member 41, the frame body 5, and the restricting piece 46 suspended by the connecting plate 6 constitute a seat plate 57. As described above, the seat plate 57 is provided at the front end of the slat curtain 4 in the closing direction, and the swinging portion 45 is disposed between the slat curtain 4 and the seat plate 57, so that the swing for removing the obstacle is performed. The portion 45 can be concentrated in the vicinity of the seat plate 57. As a result, the swinging portion 45 can be configured compactly, maintenance can be facilitated, and easy retrofitting by additional construction in which only the members below the connecting plate 6 are replaced can be made possible.

座板５７のカバー部材４１には、座板５７の回転を検出する検知手段５９が設けられている。この検知手段５９が設けられることで、感知片１６が可動されてスラットカーテン４が停止された後、揺動部４５が回転されて感知片１６が障害物から離反されても、検知手段５９からの信号によって障害物の感知状態が保持され続けてスラットカーテン４が停止状態となる。これにより、スラットカーテン４の再閉動による障害物の挟み込みが防止される。この検知手段５９としては、マイクロスイッチや、タクトスイッチなどの接触式スイッチでもよく、金属などの接近を検出する非接触スイッチとして構成してもよい。また、この検知手段５９としては、上記したマイクロスイッチ３２と並列接続（検知手段５９の信号出力接点構成とマイクロスイッチ３２のスイッチ構成がそれぞれメーク接点の場合）または直列接続（それぞれブレーク接点の場合）することによって、マイクロスイッチ３２または検知手段５９が感知片１６の可動や揺動部４５の回転を感知している間、障害物を感知した状態とするようにしてもよい。 The cover member 41 of the seat plate 57 is provided with detection means 59 that detects the rotation of the seat plate 57. By providing the detecting means 59, even if the sensing piece 16 is moved and the slat curtain 4 is stopped, the swinging portion 45 is rotated and the sensing piece 16 is separated from the obstacle, so that the detecting means 59 The slat curtain 4 is in a stopped state while the sensing state of the obstacle continues to be held by the signal. This prevents the obstacle from being caught by the reclosing movement of the slat curtain 4. The detection means 59 may be a contact switch such as a micro switch or a tact switch, or may be configured as a non-contact switch that detects the approach of metal or the like. The detection means 59 is connected in parallel with the microswitch 32 described above (when the signal output contact configuration of the detection means 59 and the switch configuration of the microswitch 32 are each a make contact) or in series connection (each is a break contact). By doing so, the obstacle may be detected while the micro switch 32 or the detecting means 59 is detecting the movement of the sensing piece 16 or the rotation of the swinging portion 45.

本実施の形態では、スラットカーテン４の開閉方向が、昇降方向となる。このように、スラットカーテン４の開閉方向が、昇降方向であるので、揺動部４５をスラットカーテン４の一部である座板５７の自重によって非揺動状態に保持させて、スラットカーテン４の先端側を、閉動側（下側）へ配置させておくことができる。これにより、障害物挟み込み後における除去機能の保持が可能となり、感知片１６が反閉鎖方向へ可動された後の、揺動部４５の回転を実現できる。 In the present embodiment, the opening / closing direction of the slat curtain 4 is the ascending / descending direction. Thus, since the opening and closing direction of the slat curtain 4 is the up-and-down direction, the swinging portion 45 is held in a non-swinging state by the weight of the seat plate 57 that is a part of the slat curtain 4, and the slat curtain 4 The distal end side can be arranged on the closing side (lower side). Accordingly, it is possible to maintain the removal function after the obstacle is caught, and the swinging portion 45 can be rotated after the sensing piece 16 is moved in the anti-closing direction.

なお、本例では、スラットカーテン４の開閉方向が昇降方向であるが、開閉体の開閉方向は、上記したように、水平方向、或いは閉動方向が上方向となるものであってもよい。この場合、例えば閉動方向が上方向となる場合、感知片１６、振れ止め部材４７ａ，４７ｂ、規制片４６の開動方向の可動が、感知片１６の開動方向の可動より先に生じないようにするための付勢手段（バネ等）を開閉体に配設することが望ましく、また、揺動部４５における回転が、感知片１６の開動方向の可動より先に生じないようにするための付勢手段（バネ等）を開閉体に配設することが望ましい。 In this example, the opening / closing direction of the slat curtain 4 is the up / down direction. However, as described above, the opening / closing direction of the opening / closing body may be the horizontal direction or the closing direction. In this case, for example, when the closing direction is an upward direction, the movement of the sensing piece 16, the steady members 47 a and 47 b, and the regulating piece 46 in the opening direction does not occur before the movement of the sensing piece 16 in the opening direction. It is desirable to dispose an urging means (spring or the like) on the opening / closing body, and to prevent the rotation of the swinging portion 45 from occurring before the sensing piece 16 is movable in the opening direction. It is desirable to dispose biasing means (spring or the like) on the opening / closing body.

次に、障害物感知装置を備えた開閉体の構造の作用を説明する。
図７は開閉体先端側の着地時における断面図である。
図７に示すように、まず、スラットカーテン４が閉鎖動作で降下し、座板５７が建物開口２の縁部２ａに接触すると、感知片１６が縁部２ａにより、枠体５に対して上昇し、この感知片１６の上縁１９ａ側が枠体５の内方向へと進入を始める。同時に、規制片４６、振れ止め部材４７ａ，４７ｂが、ビス５４に対して長穴５３を移動させて、連結板６に対して上方向へとスライドされる。特に、縁部２ａの当接面が平坦で感知片１６の当接面と平行である場合、このスライド量は、感知片１６の進入量と同量となる。なお、この感知片１６の枠体５への進入動作は、感知片１６が障害物に当接した場合と同じとなる。 Next, the operation of the structure of the opening / closing body provided with the obstacle sensing device will be described.
FIG. 7 is a cross-sectional view of the opening / closing body at the time of landing.
As shown in FIG. 7, first, when the slat curtain 4 is lowered by the closing operation and the seat plate 57 contacts the edge 2a of the building opening 2, the sensing piece 16 is raised with respect to the frame 5 by the edge 2a. Then, the upper edge 19a side of the sensing piece 16 starts to enter inward of the frame body 5. At the same time, the regulating piece 46 and the steadying members 47 a and 47 b are moved upward with respect to the connecting plate 6 by moving the elongated hole 53 with respect to the screw 54. In particular, when the contact surface of the edge 2a is flat and parallel to the contact surface of the sensing piece 16, the amount of sliding is the same as the amount of entry of the sensing piece 16. Note that the entry operation of the sensing piece 16 into the frame 5 is the same as when the sensing piece 16 comes into contact with an obstacle.

すなわち、スラットカーテン４が閉鎖動作で降下する際に、その下方に障害物がある場合、感知片１６の基板１７がその障害物に当接する。感知片１６は、この障害物により、枠体５に対して上昇し、この感知片１６の上縁１９ａ側が枠体５の内方向へと進入を始める。これにより、この感知片１６の上縁１９ａに当接状態の各当接部２６，２７を介して、作動片２２が基端部２３の軸支部分を中心に上方へ揺動（回動）を開始する。 That is, when the slat curtain 4 is lowered by the closing operation and there is an obstacle below the slat curtain 4, the substrate 17 of the sensing piece 16 comes into contact with the obstacle. The sensing piece 16 rises with respect to the frame body 5 due to the obstacle, and the upper edge 19a side of the sensing piece 16 starts to enter the inward direction of the frame body 5. As a result, the operating piece 22 swings (rotates) upward about the shaft support portion of the base end portion 23 via the contact portions 26 and 27 in contact with the upper edge 19a of the sensing piece 16. To start.

同時に、作動片２２の一方の当接部２６の先端側上面が、マイクロスイッチ３２の作動子３３を押し上げ、これにより、マイクロスイッチ３２が検出信号を出力し、送信機３８を介して受信機３９へとこの信号を例えば赤外線などの無線にて送出する。受信機３９側では、この検出信号を図示しない制御装置へ送り、これにより、図１に示す駆動モータＭの停止を行い、スラットカーテン４の下降を停止する。 At the same time, the upper surface on the tip end side of one abutting portion 26 of the operating piece 22 pushes up the operating element 33 of the microswitch 32, whereby the microswitch 32 outputs a detection signal and receives the receiver 39 via the transmitter 38. This signal is transmitted by radio such as infrared rays. On the receiver 39 side, this detection signal is sent to a control device (not shown), whereby the drive motor M shown in FIG. 1 is stopped and the descent of the slat curtain 4 is stopped.

図８は凹凸状障害物の感知状況を表す動作説明図、図９は図８に示した感知状態から開閉体先端側が回転された状況を表す動作説明図である。
ここで、図８に示すように、障害物Ｂが、凹凸形状であり、その凹部Ｂａが座板５７によって挟まれた場合においても、感知片１６が作動し、駆動モータＭの停止を行い、スラットカーテン４の下降を停止する。従来の開閉体の構造では、このようなスラットカーテン４の停止状態において、凸形状障害物の場合には、スラットカーテン４の僅かなクリアランス（数ミリ程度）を利用して上昇させ、障害物を除去することが可能となったが、図８に示す凹凸形状の障害物Ｂの場合には、山部Ｂｂ，Ｂｂによって除去が不能となる。 FIG. 8 is an operation explanatory diagram illustrating the sensing state of the concavo-convex obstacle, and FIG. 9 is an operation explanatory diagram illustrating a state where the distal end side of the opening / closing body is rotated from the sensing state illustrated in FIG.
Here, as shown in FIG. 8, even when the obstacle B has an uneven shape and the recessed portion Ba is sandwiched between the seat plates 57, the sensing piece 16 is activated and the drive motor M is stopped, The descent of the slat curtain 4 is stopped. In the structure of the conventional opening / closing body, when the slat curtain 4 is stopped, in the case of a convex obstacle, the slat curtain 4 is lifted using a slight clearance (about several millimeters) to Although it can be removed, in the case of the concavo-convex obstacle B shown in FIG. 8, the crest portions Bb and Bb cannot be removed.

これに対し、本実施の形態による開閉体の構造では、図９に示すように、座板５７がスラットカーテン４の表裏面のいずれか一方側へ揺動され、障害物Ｂとの間に間隙Ｓが形成されることにより、例えば凹凸形状の凹部Ｂａが挟まれた障害物Ｂであっても、形成された間隙Ｓに凸部Ｂｂが通過可能となる。 On the other hand, in the structure of the opening / closing body according to the present embodiment, the seat plate 57 is swung to either one of the front and back surfaces of the slat curtain 4 as shown in FIG. By forming S, for example, even if the obstacle B is sandwiched between the concave and convex portions Ba, the convex portions Bb can pass through the formed gap S.

そして、感知片１６の下方に存在した障害物Ｂが除去されると、感知片１６は自重で初期の状態に戻るとともに、マイクロスイッチ３２に設けられた板バネ３６の復帰力とマイクロスイッチ３２のアクチュエータ部３５に内蔵される図示しない圧縮バネの微小な復帰力とによって、作動片２２も初期の状態に戻る（図６参照） When the obstacle B existing below the sensing piece 16 is removed, the sensing piece 16 returns to its initial state by its own weight, and the restoring force of the leaf spring 36 provided in the microswitch 32 and the microswitch 32 The operating piece 22 also returns to the initial state by a small restoring force of a compression spring (not shown) built in the actuator unit 35 (see FIG. 6).

したがって、この障害物感知装置１を備えた開閉体の構造によれば、感知片１６の可動の後にさらにスラットカーテン４の先端側を開閉体表裏面の少なくともいずれか一方側へ回転可能とする揺動部４５がスラットカーテン４に設けられたので、スラットカーテン４の先端側を表裏面のいずれか一方側へ揺動することによって障害物Ｂとの間に間隙Ｓを形成することができ、例えば凹凸形状の凹部Ｂａが挟まれた障害物Ｂであっても、形成された間隙Ｓに凸部Ｂｂを通過させることで、容易な除去を可能にすることができる。 Therefore, according to the structure of the opening / closing body provided with the obstacle sensing device 1, after the sensing piece 16 is moved, the front end side of the slat curtain 4 can be further rotated to at least one of the front and back surfaces of the opening / closing body. Since the moving part 45 is provided in the slat curtain 4, the gap S can be formed between the obstacle B by swinging the front end side of the slat curtain 4 to either one of the front and back surfaces. Even if the obstacle B is sandwiched between the concave and convex portions Ba, it is possible to easily remove the obstacle B by passing the convex portion Bb through the formed gap S.

次に、上記した開閉体の構造の変形例を説明する。
本発明に係る障害物感知装置１を備えた開閉体の構造は、障害物感知装置１による障害物感知時のみに、揺動部４５の回転を可能にする回転許可手段が開閉体に設けられたものであることが好ましい。また、座板５７が倒れている間は、感知片１６が感知状態を保持し続けることが好ましい。
図１０は感知片が作動するまで座板が回転しない変形例（１）の縦断面図、図１１は図１０に示した変形例（１）の動作説明図である。なお、以下の各変形例において、図１〜図９に示した部材及び部位と同一の部材及び部位には同一の符号を付し、重複する説明は省略するものとする。
この変形例による開閉体の構造は、連結板６の下端がＬ字形に折り曲げられた折曲片６０となる。この折曲片６０は、カバー部材４１の上面に平行に当接し、揺動部４５を回転中心とした座板５７の反時計回りの回転を規制している。つまり、座板５７は、図１０に示した垂直姿勢から、時計回りで回転開始する。 Next, a modified example of the structure of the above opening / closing body will be described.
In the structure of the opening / closing body provided with the obstacle sensing device 1 according to the present invention, the opening / closing body is provided with a rotation permission means that allows the swinging portion 45 to rotate only when the obstacle sensing device 1 senses an obstacle. It is preferable that Further, it is preferable that the sensing piece 16 keeps the sensing state while the seat plate 57 is tilted.
FIG. 10 is a longitudinal sectional view of the modified example (1) in which the seat plate does not rotate until the sensing piece is operated, and FIG. 11 is an operation explanatory diagram of the modified example (1) shown in FIG. In addition, in each following modification, the same code | symbol shall be attached | subjected to the member and site | part same as the member and site | part shown to FIGS. 1-9, and the overlapping description shall be abbreviate | omitted.
The structure of the opening / closing body according to this modification is a bent piece 60 in which the lower end of the connecting plate 6 is bent into an L shape. The bent piece 60 abuts in parallel with the upper surface of the cover member 41 and restricts the counterclockwise rotation of the seat plate 57 with the swinging portion 45 as the rotation center. That is, the seat plate 57 starts to rotate clockwise from the vertical posture shown in FIG.

折曲片６０の上面には断面扇状の係合ブロック６１が固定され、係合ブロック６１は外面が凸曲面６１ａに形成される。また、係合ブロック６１と連結板６との間には間隙６２が形成される。この間隙６２には回転許可手段６３の係合片６３ａが嵌入している。回転許可手段６３は、断面が略コ字形状に形成され、上部先端が係合片６３ａとなる。回転許可手段６３の下部には嵌着部６３ｂが形成され、嵌着部６３ｂは下方から覆うように感知片１６に嵌着している。係合片６３ａを間隙６２に嵌入させた回転許可手段６３は、突出状態の感知片１６を嵌着部６３ｂによって覆っている。 An engagement block 61 having a fan-shaped cross section is fixed to the upper surface of the bent piece 60, and the outer surface of the engagement block 61 is formed as a convex curved surface 61a. A gap 62 is formed between the engagement block 61 and the connecting plate 6. In this gap 62, an engagement piece 63a of the rotation permission means 63 is fitted. The rotation permission means 63 has a substantially U-shaped cross section, and the upper end is an engagement piece 63a. A fitting portion 63b is formed below the rotation permission means 63, and the fitting portion 63b is fitted to the sensing piece 16 so as to cover from below. The rotation permission means 63 in which the engagement piece 63a is fitted in the gap 62 covers the protruding detection piece 16 with the fitting portion 63b.

この変形例の作用を説明する。
図１０に示すように、係合片６３ａが間隙６２に嵌入した状態では、回転許可手段６３は、上部が連結板６と係合ブロック６１とに挟まれ、連結板６と一体に固定される。したがって、この状態では座板５７は、回転が規制される。
一方、図１１（ａ）に示すように、座板５７が着地すると、感知片１６が枠体５内に進入する。すると、感知片１６の上昇と共に、回転許可手段６３が上昇し、係合片６３ａが間隙６２から離脱される。係合片６３ａの離脱により、回転許可手段６３による回転規制が解除され、座板５７は、図１１（ｂ）に示すように、揺動部４５を介して回転が可能となる。 The operation of this modification will be described.
As shown in FIG. 10, when the engagement piece 63 a is fitted in the gap 62, the rotation permission means 63 is sandwiched between the connection plate 6 and the engagement block 61 and fixed integrally with the connection plate 6. . Accordingly, in this state, the rotation of the seat plate 57 is restricted.
On the other hand, as shown in FIG. 11A, when the seat plate 57 lands, the sensing piece 16 enters the frame body 5. Then, as the sensing piece 16 rises, the rotation permission means 63 rises, and the engaging piece 63a is detached from the gap 62. With the disengagement of the engaging piece 63a, the rotation restriction by the rotation permission means 63 is released, and the seat plate 57 can be rotated via the swinging portion 45 as shown in FIG.

図１１（ｃ）に示すように、座板５７は、係合片６３ａが折曲片６０に当接することで回転が規制され、その結果、建物開口２の縁部２ａとの間に間隙Ｓａを形成する。この間、感知片１６は、係合片６３ａが係合ブロック６１の凸曲面６１ａに摺接することで、感知状態を保持し続けることになる。 As shown in FIG. 11C, the rotation of the seat plate 57 is restricted by the engagement piece 63a coming into contact with the bent piece 60, and as a result, the gap Sa between the edge 2a of the building opening 2 is restricted. Form. During this time, the sensing piece 16 continues to maintain the sensing state when the engaging piece 63a is in sliding contact with the convex curved surface 61a of the engaging block 61.

したがって、この変形例（１）によれば、このような回転許可手段６３をスラットカーテン４に設けることで、障害物の感知前に、揺動部４５が誤動作されることを防止できる。すなわち、揺動部４５が先に回転されることにより、障害物を感知できなくなることや、障害物挟み込み後に、新たな間隙Ｓａが形成不能となる状態を回避できる。この結果、障害物感知後の回転を確実にして、障害物除去機能の信頼性を向上させることができる。なお、回転許可手段６３は、開閉体幅方向に亘って延設されていてもよいし、一定間隔で複数設けられてもよいし、単数設けられていてもよい。 Therefore, according to this modification (1), by providing such rotation permission means 63 in the slat curtain 4, it is possible to prevent the swinging portion 45 from malfunctioning before the obstacle is detected. That is, it is possible to avoid a situation in which an obstacle cannot be sensed by rotating the swinging portion 45 first, and a state in which a new gap Sa cannot be formed after the obstacle is caught. As a result, the rotation after the obstacle detection can be ensured and the reliability of the obstacle removing function can be improved. In addition, the rotation permission means 63 may be extended over the opening-and-closing body width direction, multiple may be provided at a fixed interval, and the single may be provided.

図１２は感知片が作動するまで座板が回転しない変形例（２）の縦断面図、図１３は図１２に示した変形例（２）の動作を説明する断面図、図１４は図１２に示した変形例（２）の動作を説明する斜視図である。
この変形例による開閉体の構造は、連結板６の下縁に、揺動部４５の一方の固定片４５ａが固定される。揺動部４５の他方の固定片４５ｂは、カバー部材４１の上面に固定されている。座板５７の両端には回転許可手段６３Ａが設けられ、回転許可手段６３Ａは感知片１６、カバー部材４１を覆う四角枠形状に形成されている。回転許可手段６３Ａの上部には断面半円状の凸部７１が形成され、凸部７１には座板５７の長手方向に沿うスリット７２が形成される。このスリット７２には、揺動部４５が配置される。凸部７１の上部にはスリット７２を跨いで図１４に示す掛止部７３が連設され、掛止部７３は揺動部４５の固定片４５ａに上方より掛止している。連結板６の下縁には、図１４に示すように、掛止部７３、凸部７１を進入させる切欠７４が形成される。 12 is a longitudinal sectional view of the modified example (2) in which the seat plate does not rotate until the sensing piece is operated, FIG. 13 is a sectional view for explaining the operation of the modified example (2) shown in FIG. 12, and FIG. It is a perspective view explaining operation | movement of the modification (2) shown in FIG.
In the structure of the opening / closing body according to this modification, one fixing piece 45 a of the swinging portion 45 is fixed to the lower edge of the connecting plate 6. The other fixed piece 45 b of the swing part 45 is fixed to the upper surface of the cover member 41. Rotation permission means 63A is provided at both ends of the seat plate 57, and the rotation permission means 63A is formed in a square frame shape that covers the sensing piece 16 and the cover member 41. A convex portion 71 having a semicircular cross section is formed on the upper portion of the rotation permission means 63 A, and a slit 72 along the longitudinal direction of the seat plate 57 is formed in the convex portion 71. The swing part 45 is disposed in the slit 72. A hooking portion 73 shown in FIG. 14 is connected to the upper portion of the convex portion 71 across the slit 72, and the hooking portion 73 is hooked on the fixed piece 45 a of the swinging portion 45 from above. As shown in FIG. 14, a notch 74 is formed on the lower edge of the connecting plate 6 to allow the hook portion 73 and the convex portion 71 to enter.

この変形例の作用を説明する。
図１２に示すように、座板５７が着地していない状態では、感知片１６が下方へ垂下した状態となり、回転許可手段６３Ａの掛止部７３が図１４（ａ）に示すように、揺動部４５の固定片４５ａに上方から掛止する。これにより、座板５７は、揺動部４５を介した回転が規制される。 The operation of this modification will be described.
As shown in FIG. 12, when the seat plate 57 is not landed, the sensing piece 16 is suspended downward, and the latching portion 73 of the rotation permission means 63A is swung as shown in FIG. It hooks on the fixed piece 45a of the moving part 45 from above. Thereby, the rotation of the seat plate 57 via the swing part 45 is restricted.

一方、図１３（ａ）、図１４（ｂ）に示すように、座板５７が着地すると、感知片１６が枠体５内に進入する。すると、感知片１６の上昇と共に、回転許可手段６３Ａが上昇し、掛止部７３が固定片４５ａから離脱される。掛止部７３の離脱により、回転許可手段６３Ａによる回転規制が解除され、座板５７は、図１３（ｂ）、図１４（ｃ）に示すように、揺動部４５を介して回転が可能となる。 On the other hand, as shown in FIGS. 13A and 14B, when the seat plate 57 is landed, the sensing piece 16 enters the frame 5. Then, as the sensing piece 16 rises, the rotation permission means 63A rises, and the latching portion 73 is detached from the fixed piece 45a. The rotation restriction by the rotation permission means 63A is released by the release of the latching portion 73, and the seat plate 57 can be rotated via the swinging portion 45 as shown in FIGS. 13 (b) and 14 (c). It becomes.

図１３（ｃ）、図１４（ｃ）に示すように、座板５７は、回転許可手段６３Ａの肩部７５が連結板６に当接することで回転が規制され、その結果、建物開口２の縁部２ａとの間に間隙Ｓｂを形成する。この間、感知片１６は、凸部７１の内周が固定片４５ａの上端に摺接することで、感知状態を保持し続けることになる。
なお、回転許可手段は、凸部７１と掛止部を除くそれぞれの部位が開閉体幅方向に亘って設けられていてもよい。また、凸部７１と掛止部７３は、切欠７４とともに、開閉体幅方向に一定間隔で複数設けられてもよいし、単数であってもよい。さらには、掛止部７３と切欠７４を省略する構成としてもよい。 As shown in FIGS. 13C and 14C, the seat plate 57 is restricted from rotating by the shoulder 75 of the rotation permission means 63 A coming into contact with the connecting plate 6. A gap Sb is formed between the edge 2a. During this time, the sensing piece 16 keeps the sensing state because the inner periphery of the convex portion 71 is in sliding contact with the upper end of the fixed piece 45a.
In addition, as for the rotation permission means, each site | part except the convex part 71 and a latching part may be provided over the opening-and-closing body width direction. Moreover, the convex part 71 and the latching | locking part 73 may be provided with two or more by the fixed interval in the opening-and-closing body width direction with the notch 74, and may be single. Furthermore, the latching part 73 and the notch 74 may be omitted.

したがって、この変形例（２）によれば、回転許可手段６３Ａをスラットカーテン４に設けることで、障害物Ｂの感知前に、揺動部４５が誤動作されることを防止できる。すなわち、揺動部４５が先に回転されることにより、障害物挟み込み後に、新たな間隙Ｓｂが形成不能となる状態を回避できる。この結果、障害物感知後の回転を確実にして、障害物除去機能の信頼性を向上させることができる。 Therefore, according to this modification (2), by providing the rotation permission means 63A on the slat curtain 4, it is possible to prevent the swinging portion 45 from malfunctioning before the obstacle B is detected. In other words, the state in which the new gap Sb cannot be formed after the obstacle is caught can be avoided by rotating the swinging portion 45 first. As a result, the rotation after the obstacle detection can be ensured and the reliability of the obstacle removing function can be improved.

本発明に係る開閉体の構造を有したシャッターの概略正面図である。It is a schematic front view of the shutter which has the structure of the opening-closing body which concerns on this invention. 図１の要部拡大正面図である。It is a principal part enlarged front view of FIG. 図２のＩ−Ｉ矢視図である。It is the II arrow directional view of FIG. 図３のII−II矢視図である。It is the II-II arrow line view of FIG. 図３のIII −III 矢視図である。FIG. 4 is a view taken in the direction of arrows III-III in FIG. 3. 蝶番部の縦断面図である。It is a longitudinal cross-sectional view of a hinge part. 開閉体先端側の着地時における断面図である。It is sectional drawing at the time of landing of the opening-and-closing body front end side. 凹凸状障害物の感知状況を表す動作説明図である。It is operation | movement explanatory drawing showing the detection condition of an uneven obstacle. 図８に示した感知状態から開閉体先端側が回転された状況を表す動作説明図である。It is operation | movement explanatory drawing showing the condition where the opening-and-closing body front end side was rotated from the sensing state shown in FIG. 感知片が作動するまで座板が回転しない変形例（１）の縦断面図である。It is a longitudinal cross-sectional view of the modification (1) in which a seat plate does not rotate until a sensing piece act | operates. 図１０に示した変形例（１）の動作説明図である。It is operation | movement explanatory drawing of the modification (1) shown in FIG. 感知片が作動するまで座板が回転しない変形例（２）の縦断面図である。It is a longitudinal cross-sectional view of the modification (2) in which a seat plate does not rotate until a sensing piece act | operates. 図１２に示した変形例（２）の動作を説明する断面図である。It is sectional drawing explaining the operation | movement of the modification (2) shown in FIG. 図１２に示した変形例（２）の動作を説明する斜視図である。It is a perspective view explaining operation | movement of the modification (2) shown in FIG. 従来構造における凹凸状障害物の感知状況を表す動作説明図である。It is operation | movement explanatory drawing showing the detection condition of the uneven obstacle in a conventional structure. 従来構造における凹凸状障害物の除去されない状況を表す動作説明図である。It is operation | movement explanatory drawing showing the condition where the uneven obstacle in a conventional structure is not removed.

Explanation of symbols

１…障害物感知装置
４…開閉体（スラットカーテン）
１６…感知片
４３…ガイド部材（ガイドレール）
４５…揺動部
４６…規制片
４９…カバー片
５１，５２…スライド部
５７…座板
５９…検知手段
６３…回転許可手段
Ｂ…障害物 1 ... Obstacle sensing device 4 ... Opening / closing body (slat curtain)
16 ... Sensing piece 43 ... Guide member (guide rail)
45 ... Swing part 46 ... Restriction piece 49 ... Cover piece 51, 52 ... Slide part 57 ... Seat plate 59 ... Detection means 63 ... Rotation permission means B ... Obstacle

Claims

Provided with an obstacle sensing device for stopping movement of the opening / closing body by detecting movement of the sensing piece in the anti-closing direction by contacting a sensing piece provided at a front end of the opening / closing body in the closing direction. The structure of the open / close body,
An obstacle sensing device characterized in that a swinging portion is provided on the opening / closing body that allows the front end side of the opening / closing body to further rotate to at least one of the front and back surfaces of the opening / closing body after the sensing piece is movable. Opening and closing body structure with

Both side edges of the opening / closing body excluding the tip side are guided by each of a pair of guide members,
The opening / closing body is provided with a restricting piece that abuts on the tip end side that can swing and restricts rotation to at least one of the front and back surfaces of the opening / closing body on the front end side. A structure of an opening / closing body comprising the obstacle sensing device according to Item 1.

The structure of an opening / closing body having an obstacle sensing device according to claim 2, wherein the restriction piece is provided with a cover piece that covers an end face on the tip side.

2. The structure of an opening / closing body having an obstacle sensing device according to claim 1, wherein the opening / closing body is provided with a detecting means for detecting the rotation on the tip side.

3. A structure of an opening / closing body having an obstacle sensing device according to claim 2, wherein a sliding portion that allows the restriction piece to move in the anti-closing direction is provided on the opening / closing body.

The obstacle detection device according to claim 1, further comprising a rotation permission unit that allows the swinging unit to rotate only when an obstacle is detected by the obstacle detection device. Opening and closing body structure.

A seat plate is provided at the end of the opening / closing body in the closing direction,
2. The structure of an opening / closing body having an obstacle sensing device according to claim 1, wherein the swinging portion is disposed between the slat of the opening / closing body and the seat plate.