JP2004076570A - Passage opening/closing lifting shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a passage opening/closing lifting shutter for quickly opening/closing a passage port, sufficiently securing the height of the passage port, having wind resistance, superior in safety, crime preventive performance and silence, and widely adaptable to an existing passage port. <P>SOLUTION: This passage opening/closing lifting shutter opens and closes the passage port by lifting a shielding member. Pull-up guide members for traveling in the horizontal direction are arranged in parallel by the proper number at a proper interval over the upper end side from the lowest end of the shielding member in the shielding member. Guide grooves are formed on the left and right of the passage port for vertically movably housing ends of the pull-up guide members. Guide rollers guided by the guide grooves are arranged in both ends of the pull-up guide members of a lowest stage. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【産業上の利用分野】
本発明は、工場や倉庫や工事現場等の通路口（出入口）を開閉する通路開閉用昇降シャッターに関する。
【０００２】
【従来技術とその問題点】
従来、工場や倉庫や工事現場等の通路口には、当該通路口の遮蔽部材として樹脂製の幕状シートを垂らし、幕状シートの巻き上げによって通路を開ける方式のいわゆるシートシャッターが用いられている。
しかし、幕状シートを巻き上げる方式では、比較的長尺のシートを巻取軸にて巻き取るため、巻き取りや巻き解きに時間が掛かってしまい、通路口の開閉を迅速には行ない難い。
巻取軸の径を大きくすれば、巻き取りや巻き解き所要時間が短縮できるが、これでは、大きな軸に更にシートを巻き付けることになるため、収納スペースの幅が広く必要となって、既存構造物の通路口に対しての適応性が低くなり、シャッター装置の設置自体が困難となってしまう。
【０００３】
この問題を解決するものとして、シートを上方にたくしあげるようにして収納する引上方式が提案されている。
しかし、この方式では、「たくしあげ」であるため、通路口の高さを十分に高く取ることが難しい。
高さを取ろうとすれば、装置自体が縦長となってしまい、これまた、既存構造物の通路口に対しての適応性が低くなり、シャッター装置の設置自体が困難となってしまう。
更に、幕状シートでは、巻き上げか引き上げかに拘らず、風圧に弱く、風でシートが揺れたり、捲れ上がったりするため、外気を直接うけるような通路ロヘの設置には支障があった。
【０００４】
本発明は、これらの間題の解決を目的とし、通路口の開閉が迅速に行え、通路口の高さも十分にとれ、耐風性を持ち、しかも、安全性、防犯性、静寂性などに優れ、既存通路口に広く適応できる通路開閉用昇降シャヅターの提供を目的とする。
【０００５】
【問題解決の手段】
請求項１の発明は、遮蔽部材を昇降させて通路口を開閉する通路開閉用昇降シャッターであって、当該遮蔽部材には、水平方向に走る引上ガイド部材を遮蔽部材の最下端から上端側へかけて適当間隔を空けて適当数平行に設け、最上段から途中の引上ガイド部材を融通自在に通り、最下段の引上ガイド部材に固定された牽引索条を設け、当該牽引索条の引上によって、下段から上段側の引上ガイド部材を順次上昇させ、引上ガイド部材間の遮蔽部材部分をそれぞれ折り成して、遮蔽部材全体を上昇させて通路口を開く通路開閉用昇降シャッターに於いて、
上記通路口の左右には上記引上ガイド部材の端部が上下動自在に収まるガイド溝を配設し、最下段の引上ガイド部材の両端部にはガイド溝に案内されるガイドローラを設けたことを特徴とする。
【０００６】
請求項２の発明は、遮蔽部材を昇降させて通路口を開閉する通路開閉用昇降シャッターであって、当該遮蔽部材には、水平方向に走る引上ガイド部材を遮蔽部材の最下端から上端側へかけて適当間隔を空けて適当数平行に設け、最上段から途中の引上ガイド部材を融通自在に通り、最下段の引上ガイド部材に固定された牽引索条を設け、当該牽引索条の引上によって、下段から上段側の引上ガイド部材を順次上昇させ、引上ガイド部材間の遮蔽部材部分をそれぞれ折り成して、遮蔽部材全体を上昇させて通路口を開く通路開閉用昇降シャッターに於いて、
上記通路口の左右には上記引上ガイド部材の端部が上下動自在に収まるガイド溝を配設し、当該ガイド溝の下部には、最下段の引上ガイド部材が降下した際に落ち込む陥凹部を設けたことを特徴とする。
【０００７】
請求項３の発明は、遮蔽部材を昇降させて通路口を開閉する通路開閉用昇降シャッターであって、当該遮蔽部材には、水平方向に走る引上ガイド部材を遮蔽部材の最下端から上端側へかけて適当間隔を空けて適当数平行に設け、最上段から途中の引上ガイド部材を融通自在に通り、最下段の引上ガイド部材に固定された牽引索条を設け、当該牽引索条の引上によって、下段から上段側の引上ガイド部材を順次上昇させ、引上ガイド部材間の遮蔽部材部分をそれぞれ折り成して、遮蔽部材全体を上昇させて通路口を開く通路開閉用昇降シャッターに於いて、
上記通路口の左右には上記引上ガイド部材の端部が上下動自在に収まるガイド溝を配設し、当該ガイド溝の下部には、最下段の引上ガイド部材が降下した際に落ち込む陥凹部と、陥落した引上ガイド部材の当該陥凹部からの離脱を阻止する阻止部材とから成るロック機構を設けたことを特徴とする。
【０００８】
請求項４の発明は、遮蔽部材を昇降させて通路口を開閉する通路開閉用昇降シャッターであって、当該遮蔽部材には、水平方向に走る引上ガイド部材を遮蔽部材の最下端から上端側へかけて適当間隔を空けて適当数平行に設け、最上段から途中の引上ガイド部材を融通自在に通り、最下段の引上ガイド部材に固定された牽引索条を設け、当該牽引索条の引上によって、下段から上段側の引上ガイド部材を順次上昇させ、引上ガイド部材間の遮蔽部材部分をそれぞれ折り成して、遮蔽部材全体を上昇させて通路口を開く通路開閉用昇降シャッターに於いて、
上記通路口の左右には上記引上ガイド部材の端部が上下動自在に収まるガイド溝を配設し、当該ガイド溝の下部には、最下段の引上ガイド部材が降下した際に落ち込む陥凹部と、陥落した引上ガイド部材の当該陥凹部からの離脱を阻止する阻止部材とから成るロック機構を設け、
当該ロック機構は、陥凹部に最下段の引上ガイド部材が陥落したことを検知する遮蔽完了センサからの遮蔽信号により阻止部材でロックさせる自動施錠手段と、通路口を開くための開動作信号により阻止部材のロックを解除する自動解錠手段とを有することを特徴とする
【０００９】
【発明の作用】
請求項１の発明では、最下段の引上ガイド部材の両端部にガイト溝に案内されるガイドローラを設けているので、遮蔽部材の昇降に際して無用の揺れが抑制され、昇降時の騒音を小さく、そして、円滑且つ速やかに昇降させる。
【００１０】
請求項２の発明では、陥凹部によって、最下段の引上ガイト部材が降下した際の、即ち、通路口が閉鎖された際の、最下段の引上ガイド部材の落ち着き位置が一義的に定められる。
【００１１】
請求項３の発明では、ロック機構によって最下段のガイド部材が固定され、遮蔽部材が通路口を確実に閉鎖する。
【００１２】
請求項４の発明では、遮蔽部材が降下して通路口が閉鎖されると、その最下段の引上ガイド部材がロックされ、通路開口に当たって、例えば、開口ボタンを押すと、その開動作信号によりロックが自動的に解除される。
【００１３】
【実施例】
以下、本発明を実施の一例を示す図面に基づいて説明する。
図１乃至図３に於いて、図は遮蔽部材１を昇降させて通路口を開閉する通路開閉用昇降シャッターを示すもので、図１はその正面図、図２はその縦断面図、図３はその横断面図である。
遮蔽部材１は、通路の開口を塞ぐように垂れ下がる部材であって、この実施例では、当該部材の最下端から上端側にかけて適当間隔を空けて水平方向に走るよう適当数設けられた骨材としての引上ガイド部材２と、引上ガイド部材２の間を塞ぐ遮蔽部材部分４とで構成してある。
上記の引上ガイド部材２には、最上段から途中の引上ガイド部材２を融通自在に通って、最下段の引上ガイド部材２にその先端が固定された牽引索条３が縦方向にバランス良く適当数配設してある。
遮蔽部材１は、この牽引索条３の引上により、下段から上段側の引上ガイド部材２が１頃次上昇して行くに従って、各引上ガイド部材２間の遮蔽部材部分４が順に、それぞれ折り成されながら引き上げられて行き、遂には、図４の拡大縦断面図に示されるように、遮蔽部材１全体が上昇して通路口が開かれる。
【００１４】
図４に於いて、牽引索条３は実施例ではワイヤを用いているが、チェーンやロープ、或いはベルト等であっても良い。
この牽引索条３は通路口を構成する上縁側の梁枠２０に配置された巻取ドラム５に後端が固定され、その先端側は、最上段の引上ガイド部材２から順次下の引上ガイド部材２を融通自在に通って、最下段の引上ガイド部材２にその先端が固定されている。
従って、牽引索条３が巻取ドラム５に巻き取られるにしたがって、最下段の引上ガイド部材２が上昇し、最下段の引上ガイド部材２が、順次、上方の引上ガイド部材２を下から持ち上げて行くことになる。
図４は、この持ち上げが終了した状態、即ち、遮蔽部材１を上昇させて通路口を開口した時の上部の断面図である。
【００１５】
図５に於いて、図は、最下段を除く、他の引上ガイド部材２の部分拡大図である。
実施例のこの引上ガイド部材２は、牽引索条３を融通自在に通すための貫通部６を備え、この貫通部６には、図示の通り、引上ガイド部材２の本体を成すパイプ７の側面に設けられている。
貫通部６は、垂直方向に抜ける貫通穴８と貫通穴８の円を割るようにして側面から穴８の軸方向に臨むローラ９から成っており、この貫通穴８に牽引索条３が融通自在に走るように挿通されている。
このローラ９の設定位置は、引上ガイド部材２の昇降の際に、持ち上げ或いは持ち下げられる引上ガイド部材２と引上ガイド部材２間の遮蔽部材部分４との荷重によるモーメントが掛かる側の貫通穴８の部分に設けてある。
これによって、遮蔽部材１を昇降させる際の牽引索条３と貫通部６との摩擦が軽減され、昇降運動が円滑かつ速やかに行われる。又、昇降時の騒音も軽減される。
【００１６】
実施例では貫通部６を上記のように構成しているが、牽引索条３を融通自在に通すに足る単なる貫通孔であってよく、又、単なる貫通穴をパイプ７に穿っても良い。
又、引上ガイド部材２の本体も必ずしもパイプである必要はなく、棒材や角材等遮蔽部材３の骨材として機能し、遮蔽部材３の引上強度を満たす材料のものであれば良い。
尚、本明細書でいう「折り成し」とは、折り目が直線的に着くような角度の折り曲げだけでなく、折り目が着かない曲げを含む意味で用いる。
【００１７】
再び、図４に於いて、図示の遮蔽部材１は、下段から上段側の引上ガイド部材２を順次上昇させ、引上ガイド部材２間の遮蔽部材部分４を、当該遮蔽部材部分４の上下端側の引上ガイド部材２で吊して、遮蔽部材部分４のほぼ中央が当該部分の自重で谷となるように折り成して通路口の上方側に収納された状態を示す。
同図示の遮蔽部材１は、図１に示すように、引上ガイド部材２間の間隔を下から上に行くに従って次第に遮蔽部材部分４の幅、即ち、引上ガイド部材２間の間隔幅が広がるよう形成し、収納された状態では、各々の遮蔽部材部材４の垂み部がほぼ水平に並んだ状態となるように、その間隔幅を設定している。
このように、収納された遮蔽部材部材４の垂み部がほぼ水平に並ぶ状態にすると、通路口の開口高さは、他の収納方法に比べて、より高くなる。従って、この収納方法は、通路口の高さを十分に高くしたい場合に最適である。
【００１８】
図４に示す収納方法では、垂み部が同一水平高さに並んで横並びとなるため、収納のした際の遮蔽部材１の重なり幅が大きくなる
この重なり幅を小さくするためには、引上ガイド部材２間でＵ字状に折り成される各遮蔽部材部分４の互いに隣り合う垂み部が上下方向に位置ずれした状態となるよう、引上ガイド部材２間の間隔、即ち、遮蔽部材部分４の幅を下から上に行く方向で、順に、幅が交互に大小となるよう形成するとよい。
このようにすると、通路口の高さは若干低くなるが、遮蔽部材１の収納時の重なり幅を大幅に縮小することができる。
【００１９】
又、本発明では、遮蔽部材１の収納時の重なりと昇降時の振れ防止とを規制するために、通路口の左右には引上ガイド部材２の端部が上下動自在に収まるガイド溝２１を設けている。実施例では、断面コ字型の鋼材を通路口の左有に位置して梁枠２０を支える支柱枠として用い、そのコ字型凹部をガイド溝としている。
このガイド溝２１に、遮蔽部材１の両端側を挿入するように構成しておくと、遮蔽部材１の収納時の重なり幅をも規制することができる。
【００２０】
図４及び図８に於いて、牽引索条３の引上によって相接することとなる各引上ガイド部材２間には、両者の間に、適当間隔を空けるためのスペーサ１４が設けられている。実施例では、牽引索条３に短筒状のカラーを挿通して、引上ガイド部材２を構成する貫通部６間に介在させている。
このスペーサ１４は、遮蔽部材１を引上げて折り成す際、遮蔽部材１の柔軟度に応じて、各遮蔽部材部分４が無理な折り成しとならないよう、調整するためのものである。このスペーサ１４の介在によって、遮蔽部材１の折り成しと展開の繰り返しによる疲労を軽減でき、遮蔽部材１の酎久性を高めている。
【００２１】
図４、図８、及び図９に於いて、最下段の引上ガイド部材２の両端部には支柱枠のガイド溝２１の内壁に沿って滑空するガイドローラ１５を設けている。このガイドローラ１５は、遮蔽部材１の昇降に際して、その無用の揺れが抑制されるだけでなく、昇降時に生ずる擦過音等の騒音を減少させ、円滑且つ速やかな昇降動作が得られる。
【００２２】
図９乃至図１２に於いて、ガイド溝２１の下部には、最下段の引上ガイド部材２が降下した際に落ち込むように設けられた陥凹部１６と、この陥凹部１６の開口側に、陥落した引上ガイド部材２が陥凹部１６から離脱しないように設けられた阻止部材１７とからなるロック機構を設けてある。
実施例の阻止部材１７は、陥凹部１６の口を開閉するよう口に対して出没自在に摺動するよう構成されている。
尚、図中の符号１８は阻止部材１７の駆動原としての電磁ソレノイドである。又、符号１９は降下してくるガイドローラ１５を陥凹部１６の口に誘導するため、ガイド溝２１を斜めに横切るように傾斜せしめて形成した弓１込誘導部である
【００２３】
この引込誘導部１９によってガイドローラ１５は迷わず速やかに陥凹部１６へと最下段の引上ガイド部材２を誘導して落とし込ませ、遮蔽部材１の降下、即ち、通路口の閉鎖が速やか且つ確実に行われる。
このロック機構は、陥凹部１６に最下段の引上ガイド部材２が陥落したことを検知する遮蔽完了センサ（図示せず）からの遮蔽信号により阻止部材１７を摺動させてロックさせる自動施錠手段と、通路口を開くための開動作信号により阻止部材１７のロックを解除する自動解錠手段とを有する自動制御手段（図示せず）を備えている。
【００２４】
【発明の効果】
請求項１の発明によれば、ガイドローラにより、遮蔽部材の昇降に際して無用の揺れが抑制され、昇降時の騒音を小さく、そして、円滑且つ速やかに昇降させることができる。
【００２５】
請求項２の発明によれば、ロック機構の陥凹部によって、最下段の引上ガイド部材が降下した際の落ち着き位置が一義的に定まるので、遮蔽部材の閉鎖時の静止位置を速やかに定めることができる。
【００２６】
請求項３の発明によれば、ロック機構の陥凹部によって、最下段の引上ガイド部材が降下した際の落ち着き位置が一義的に定まるので、遮蔽部材の閉鎖時の静止位置を速やかに定めることができるとともに、ロック機構の阻止部材によって当該ガイド部材が固定されるので、遮蔽部材の通路口の閉鎖が確実となる。
【００２７】
請求項４の発明によれば、遮蔽部材が降下して通路口が閉鎖されると、その最下段の引上ガイド部材が自動的にロックされ、通路開口に当たって、例えば、開ロボタンを押すと、その開動作信号によりロックが自動的に解除される。
【図面の簡単な説明】
【図１】通路開閉用昇降シャッターの正面図である。
【図２】通路開閉用昇降シャッターの縦断面図である。
【図３】通路開閉用昇降シャヅターの横断面図である。
【図４】遮蔽部材の収納状態を示す側面図である。
【図５】引上ガイド部材の部分拡大平面図である。
【図６】可撓性部材の配設の一例を示した図である。
【図７】昇降途中の状態を示す図である。
【図８】ロック機構の施錠した状態を示す拡大側面図である。
【図９】ロック機構の解錠した状態を示す拡大側面図である。
【図１０】ロック機構の解錠した状態を示す拡大平面図である。
【符号の説明】
１　遮蔽部材、２　引上ガイド部材、３　牽引索条、４　遮蔽部材部分、５　巻取ドラム、１０　可撹性部材、１１　連係軸、１４　スペーサ、１５　ガイドローラ、１６　陥凹部、１７　阻止部材、２０　梁枠、２１　ガイド溝。[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passage opening / closing elevating shutter for opening / closing a passage (exit) of a factory, a warehouse, a construction site, or the like.
[0002]
[Prior art and its problems]
2. Description of the Related Art Conventionally, a so-called sheet shutter of a type in which a resin-made curtain sheet is hung as a shielding member of a passage opening in a factory, a warehouse, a construction site, or the like and a passage is opened by winding up the curtain-like sheet is used. .
However, in the method of winding up a curtain sheet, a relatively long sheet is wound up by a winding shaft, so that it takes time to wind up and unwind, and it is difficult to quickly open and close the passage opening.
If the diameter of the winding shaft is increased, the time required for winding and unwinding can be shortened.However, in this case, the sheet is further wound around a large shaft, so that a wide storage space is required, and the existing structure is required. The adaptability of the object to the passage is reduced, and the installation of the shutter device itself becomes difficult.
[0003]
As a solution to this problem, there has been proposed a pull-up system in which a sheet is stored while being lifted upward.
However, in this method, it is difficult to make the height of the passage opening sufficiently high because of the “tack-up”.
If the height is to be taken, the device itself becomes vertically long, and the adaptability to the passage opening of the existing structure is reduced, and the installation of the shutter device itself becomes difficult.
Furthermore, the curtain sheet is weak against wind pressure regardless of whether it is rolled up or pulled up, and the sheet is shaken or rolled up by the wind, which hinders installation of a passage loch that directly receives outside air.
[0004]
The present invention aims to solve these problems, and allows quick opening and closing of the passage opening, has a sufficient height of the passage opening, has wind resistance, and is excellent in safety, crime prevention, quietness, etc. The purpose of the present invention is to provide a passage opening / closing elevating shutter that can be widely applied to existing passage openings.
[0005]
[Problem solving measures]
The invention according to claim 1 is a passage opening / closing elevating shutter that opens and closes a passage opening by raising and lowering a shielding member, wherein the shielding member has a pull-up guide member that runs in a horizontal direction from the lowermost end to the upper end side of the shielding member. A suitable number of parallel guides are provided at an appropriate distance from each other, and a pulling rope fixed to the lowermost pulling guide member is provided through the lifting guide member in the middle from the uppermost stage so as to be flexible. The lifting guide members from the lower stage to the upper stage are sequentially raised, and the shielding members between the lifting guide members are folded, and the entire shielding member is raised to open and close the passage opening. In the shutter,
Guide grooves are provided on the left and right sides of the passage opening so that the ends of the pull-up guide members can be freely moved up and down, and guide rollers guided by the guide grooves are provided at both ends of the lowermost pull-up guide member. It is characterized by having.
[0006]
The invention according to claim 2 is a passage opening / closing elevating shutter that opens and closes a passage opening by raising and lowering a shielding member, wherein the shielding member includes a pull-up guide member that runs in a horizontal direction from the lowermost end to the upper end side of the shielding member. A suitable number of parallel guides are provided at an appropriate distance from each other, and a pulling rope fixed to the lowermost pulling guide member is provided through the lifting guide member in the middle from the uppermost stage so as to be flexible. The lifting guide members from the lower stage to the upper stage are sequentially raised, and the shielding members between the lifting guide members are folded, and the entire shielding member is raised to open and close the passage opening. In the shutter,
A guide groove is provided at the left and right of the passage opening so that the end of the pull-up guide member can be freely moved up and down. A lower part of the guide groove is a fall-down portion when the lowermost pull-up guide member falls. A concave portion is provided.
[0007]
The invention according to claim 3 is a passage opening / closing elevating shutter for opening / closing a passage opening by elevating / lowering a shielding member, wherein the shielding member is provided with a lifting guide member running in a horizontal direction from the lowermost end to the upper end side of the shielding member. A suitable number of parallel guides are provided at an appropriate distance from each other, and a pulling rope fixed to the lowermost pulling guide member is provided through the lifting guide member in the middle from the uppermost stage so as to be flexible. The lifting guide members from the lower stage to the upper stage are sequentially raised, and the shielding members between the lifting guide members are folded, and the entire shielding member is raised to open and close the passage opening. In the shutter,
A guide groove is provided at the left and right of the passage opening so that the end of the pull-up guide member can be freely moved up and down. A lower part of the guide groove is a fall-down portion when the lowermost pull-up guide member falls. A lock mechanism comprising a concave portion and a blocking member for preventing the fall-off pull-up guide member from coming off from the concave portion is provided.
[0008]
The invention according to claim 4 is a passage opening / closing elevating shutter for opening / closing a passage opening by elevating / lowering a shielding member, wherein the shielding member has a pull-up guide member running in a horizontal direction from a lowermost end to an upper end side of the shielding member. A suitable number of parallel guides are provided at an appropriate distance from each other, and a pulling rope fixed to the lowermost pulling guide member is provided through the lifting guide member in the middle from the uppermost stage so as to be flexible. The lifting guide members from the lower stage to the upper stage are sequentially raised, and the shielding members between the lifting guide members are folded, and the entire shielding member is raised to open and close the passage opening. In the shutter,
A guide groove is provided at the left and right of the passage opening so that the end of the pull-up guide member can be freely moved up and down. A lower part of the guide groove is a fall-down portion when the lowermost pull-up guide member falls. A locking mechanism comprising a recess and a blocking member for preventing the fall-off pull-up guide member from coming off from the recess,
The locking mechanism includes an automatic locking unit that locks with the blocking member by a shielding signal from a shielding completion sensor that detects that the lowermost lifting guide member has fallen into the recess, and an opening operation signal for opening the passage opening. Automatic unlocking means for unlocking the blocking member.
Effect of the Invention
According to the first aspect of the present invention, since the guide rollers guided by the guide grooves are provided at both ends of the lowermost lifting guide member, unnecessary shaking when the shielding member is moved up and down is suppressed, and noise at the time of moving up and down is reduced. Then, it is raised and lowered smoothly and quickly.
[0010]
According to the second aspect of the present invention, the settled position of the lowermost lifting guide member when the lowermost lifting guide member descends, that is, when the passage opening is closed, is uniquely determined by the recess. Can be
[0011]
According to the third aspect of the present invention, the lowermost guide member is fixed by the lock mechanism, and the shielding member securely closes the passage opening.
[0012]
According to the fourth aspect of the present invention, when the shielding member is lowered and the passage opening is closed, the lowermost lifting guide member is locked, and hits the passage opening, for example, when the opening button is pressed, the opening operation signal is output. The lock is released automatically.
[0013]
【Example】
Hereinafter, the present invention will be described with reference to the drawings showing an embodiment.
FIGS. 1 to 3 show a passage opening / closing elevating shutter for opening / closing a passage opening by raising / lowering a shielding member 1. FIG. 1 is a front view thereof, FIG. 2 is a longitudinal sectional view thereof, and FIG. Is a cross-sectional view thereof.
The shielding member 1 is a member that hangs down so as to close the opening of the passage. In this embodiment, an appropriate number of aggregates are provided so as to run in the horizontal direction at appropriate intervals from the lowermost end to the upper end side of the member. Of the lifting guide member 2 and a shielding member portion 4 that blocks between the lifting guide members 2.
The above-mentioned pull-up guide member 2 is provided with a pulling rope 3 whose tip is fixed to the lowermost pull-up guide member 2 through the pull-up guide member 2 in the middle from the uppermost stage in a flexible manner. An appropriate number is arranged in a well-balanced manner.
As the towing line 3 is pulled up, the shielding member 1 is configured such that the shielding member portions 4 between the respective lifting guide members 2 are sequentially arranged as the lifting guide members 2 from the lower stage to the upper stage rise one by one. Each of them is raised while being folded, and finally, as shown in the enlarged vertical sectional view of FIG. 4, the entire shielding member 1 is raised to open the passage opening.
[0014]
In FIG. 4, the tow rope 3 uses a wire in the embodiment, but may be a chain, a rope, a belt, or the like.
The rear end of the towing line 3 is fixed to a winding drum 5 arranged on a beam frame 20 on the upper edge side constituting a passage opening, and the front end of the towing line 3 is sequentially pulled down from the uppermost lifting guide member 2. The leading end is fixed to the lowermost pull-up guide member 2 through the upper guide member 2 in a flexible manner.
Therefore, as the tow rope 3 is wound on the winding drum 5, the lowermost lifting guide member 2 rises, and the lowermost lifting guide member 2 sequentially moves the upper lifting guide member 2 upward. You will lift it from below.
FIG. 4 is a cross-sectional view of the upper portion in a state where the lifting is completed, that is, when the shielding member 1 is raised to open the passage opening.
[0015]
In FIG. 5, the drawing is a partially enlarged view of another pulling-up guide member 2 excluding the lowermost step.
The lifting guide member 2 of the embodiment is provided with a penetrating portion 6 through which the towing line 3 is freely passed, and the penetrating portion 6 has a pipe 7 forming a main body of the lifting guide member 2 as shown in the drawing. It is provided on the side surface.
The penetrating portion 6 is composed of a through hole 8 extending in the vertical direction and a roller 9 extending in the axial direction of the hole 8 from the side so as to divide the circle of the through hole 8. It is inserted so that it can run freely.
The setting position of the roller 9 is such that when the lifting guide member 2 is moved up and down, a moment due to the load between the lifting guide member 2 lifted or lowered and the shielding member portion 4 between the lifting guide members 2 is applied. It is provided in the portion of the through hole 8.
Thereby, friction between the towing line 3 and the penetrating portion 6 when the shielding member 1 is raised and lowered is reduced, and the lifting and lowering movement is performed smoothly and quickly. In addition, noise during lifting and lowering is also reduced.
[0016]
In the embodiment, the penetrating portion 6 is configured as described above. However, the penetrating portion 3 may be a simple through-hole enough to freely pass the tow rope 3 or a simple through-hole may be formed in the pipe 7.
Further, the main body of the pull-up guide member 2 does not necessarily have to be a pipe, but may be any material that functions as an aggregate of the shielding member 3 such as a bar or a square bar and satisfies the pulling strength of the shielding member 3.
It should be noted that the term "folding" as used in the present specification is used to mean not only a bending at an angle at which a fold is linearly formed but also a bending at which a fold is not formed.
[0017]
Again, in FIG. 4, the illustrated shielding member 1 sequentially raises the lifting guide members 2 from the lower stage to the upper stage, and moves the shielding member portions 4 between the lifting guide members 2 up and down of the shielding member portions 4. A state in which the shielding member portion 4 is suspended by the lifting guide member 2 on the end side, folded so that the approximate center of the shielding member portion 4 becomes a valley by its own weight, and housed above the passage opening.
As shown in FIG. 1, the shielding member 1 shown in the drawing gradually increases the width of the shielding member portion 4, that is, the width of the interval between the lifting guide members 2, as the distance between the lifting guide members 2 increases from bottom to top. The gap width is set so that the hanging portions of the shielding members 4 are arranged substantially horizontally in a state where they are formed so as to spread and are housed.
As described above, when the hanging portions of the stored shielding member members 4 are arranged substantially horizontally, the height of the opening of the passage opening becomes higher as compared with other storing methods. Therefore, this storing method is most suitable when it is desired to make the height of the passage opening sufficiently high.
[0018]
In the storing method shown in FIG. 4, the hanging portions are arranged side by side at the same horizontal height, so that the overlapping width of the shielding member 1 at the time of storage is increased. The interval between the pull-up guide members 2, that is, the shielding member, so that the adjacent hanging portions of the shielding member portions 4 folded in a U-shape between the guide members 2 are vertically displaced. The portion 4 may be formed so that the width is alternately larger and smaller in the direction from the bottom to the top.
By doing so, the height of the passage opening is slightly reduced, but the overlapping width when the shielding member 1 is stored can be significantly reduced.
[0019]
Further, in the present invention, the guide groove 21 in which the ends of the pull-up guide member 2 are vertically movable is provided on the left and right sides of the passage opening in order to regulate the overlap when the shielding member 1 is stored and the prevention of the run-out during elevating. Is provided. In the embodiment, a steel material having a U-shaped cross section is used as a support frame that is positioned at the left side of the passage opening and supports the beam frame 20, and the U-shaped concave portion is used as a guide groove.
When the both ends of the shielding member 1 are inserted into the guide grooves 21, the overlapping width when the shielding member 1 is stored can also be restricted.
[0020]
4 and 8, a spacer 14 is provided between the lifting guide members 2 which are brought into contact with each other by the pulling of the towing ropes 3 so as to provide an appropriate space therebetween. I have. In the embodiment, a short cylindrical collar is inserted into the towing rope 3 and is interposed between the through portions 6 constituting the pulling-up guide member 2.
The spacers 14 are used to adjust the shielding member portions 4 according to the degree of flexibility of the shielding member 1 when pulling up and folding the shielding member 1 so as not to force the folding. With the interposition of the spacers 14, fatigue due to repeated folding and unfolding of the shielding member 1 can be reduced, and the durability of the shielding member 1 is enhanced.
[0021]
In FIGS. 4, 8, and 9, guide rollers 15 that glide along the inner wall of the guide groove 21 of the support frame are provided at both ends of the lowermost lifting guide member 2. The guide roller 15 not only suppresses unnecessary shaking when the shielding member 1 is moved up and down, but also reduces noise such as rubbing noise generated when the shielding member 1 is moved up and down, so that a smooth and quick lifting operation can be obtained.
[0022]
9 to 12, in the lower part of the guide groove 21, a concave portion 16 provided so as to fall when the lowermost lifting guide member 2 descends, and on the opening side of the concave portion 16, There is provided a lock mechanism including a blocking member 17 provided to prevent the fall-up guide member 2 from falling out of the recess 16.
The blocking member 17 according to the embodiment is configured to slide freely in and out of the mouth so as to open and close the mouth of the recess 16.
Reference numeral 18 in the drawing denotes an electromagnetic solenoid as a driving source of the blocking member 17. Reference numeral 19 denotes a bow 1 guide portion formed to be inclined so as to obliquely cross the guide groove 21 in order to guide the descending guide roller 15 to the mouth of the recess 16.
The guide roller 15 is guided by the retracting guide portion 19 to quickly drop the lowermost lifting guide member 2 into the recess 16 without being lost, and the lowering of the shielding member 1, that is, the closing of the passage opening is performed promptly and quickly. It is done reliably.
This locking mechanism is an automatic locking means that slides and locks the blocking member 17 according to a shielding signal from a shielding completion sensor (not shown) that detects that the lowermost lifting guide member 2 has fallen into the recess 16. Automatic control means (not shown) having automatic unlocking means for unlocking the blocking member 17 in response to an opening operation signal for opening the passage opening.
[0024]
【The invention's effect】
According to the first aspect of the present invention, unnecessary shaking is suppressed by the guide roller when the shielding member is moved up and down, so that noise at the time of ascending and descending can be reduced, and the ascending and descending can be performed smoothly and quickly.
[0025]
According to the second aspect of the present invention, since the recessed portion of the lock mechanism determines the settled position when the lowermost lifting guide member is lowered, the stationary position when the shielding member is closed can be quickly determined. Can be.
[0026]
According to the third aspect of the present invention, since the recessed portion of the lock mechanism determines the settled position when the lowermost lifting guide member is lowered, the stationary position when the shielding member is closed is quickly determined. Since the guide member is fixed by the blocking member of the lock mechanism, the closing of the passage opening of the shielding member is ensured.
[0027]
According to the invention of claim 4, when the shielding member descends and the passage opening is closed, the lowermost lifting guide member is automatically locked, and hits the passage opening, for example, when the opening button is pressed, The lock is automatically released by the opening operation signal.
[Brief description of the drawings]
FIG. 1 is a front view of a passage opening / closing elevating shutter.
FIG. 2 is a vertical sectional view of a passage opening / closing elevating shutter.
FIG. 3 is a cross sectional view of a passage opening / closing elevating shutter.
FIG. 4 is a side view showing a housed state of the shielding member.
FIG. 5 is a partially enlarged plan view of a pull-up guide member.
FIG. 6 is a diagram showing an example of disposition of a flexible member.
FIG. 7 is a diagram showing a state in the middle of ascending and descending.
FIG. 8 is an enlarged side view showing a locked state of a lock mechanism.
FIG. 9 is an enlarged side view showing an unlocked state of the lock mechanism.
FIG. 10 is an enlarged plan view showing the unlocked state of the lock mechanism.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 shield member, 2 pull-up guide member, 3 pulling rope, 4 shield member portion, 5 winding drum, 10 stirrable member, 11 linking shaft, 14 spacer, 15 guide roller, 16 recess, 17 blocking member, 20 beam frames, 21 guide grooves.

Claims (4)

遮蔽部材を昇降させて通路口を開閉する通路開閉用昇降シャッターであつて、
当該遮蔽部材には、水平方向に走る引上ガイド部材を遮蔽部材の最下端から上端側へかけて適当間隔を空けて適当数平行に設け、最上段から途中の引上ガイド部材を融通自在に通り、最下段の引上ガイド部材に固定された牽引索条を設け、当該牽引索条の引上によって、下段から上段側の引上ガイド部材を順次上昇させ、引上ガイド部材間の遮蔽部材部分をそれぞれ折り成して、遮蔽部材全体を上昇させて通路口を開く通路開閉用昇降シャッターに於いて、
上記通路口の左右には上記引上ガイド部材の端部が上下動自在に収まるガイド溝を配設し、最下段の引上ガイド部材の両端部にはガイド溝に案内されるガイドローラを設けたことを特徴とする通路開閉用昇降シャッター。A passage opening / closing elevating shutter that raises / lowers a shielding member to open / close a passage opening,
In the shielding member, a suitable number of lifting guide members running in the horizontal direction are provided in parallel at appropriate intervals from the lowermost end to the upper end side of the shielding member, and the lifting guide member in the middle from the uppermost stage is freely pliable. As described above, a towing line fixed to the lowermost lifting guide member is provided, and by pulling up the towing line, the lifting guide members from the lower stage to the upper stage are sequentially raised, and a shielding member between the lifting guide members is provided. In the elevating shutter for opening and closing the passage opening the passage opening by raising the entire shielding member by folding each part,
Guide grooves are provided on the left and right sides of the passage opening so that the ends of the pull-up guide members can be freely moved up and down, and guide rollers guided by the guide grooves are provided at both ends of the lowermost pull-up guide member. A lift shutter for opening and closing a passage. 遮蔽部材を昇降させて通路口を開閉する通路開閉用昇降シャッターであつて、
当該遮蔽部材には、水平方向に走る引上ガイド部材を遮蔽部材の最下端から上端側へかけて適当間隔を空けて適当数平行に設け、最上段から途中の引上ガイド部材を融通自在に通り、最下段の引上ガイド部材に固定された牽引索条を設け、当該牽引索条の引上によって、下段から上段側の引上ガイド部材を順次上昇させ、引上ガイド部材間の遮蔽部材部分をそれぞれ折り成して、遮蔽部材全体を上昇させて通路口を開く通路開閉用昇降シャッターに於いて、
上記通路口の左右には上記引上ガイド部材の端部が上下動自在に収まるガイド溝を配設し、当該ガイド溝の下部には、最下段の引上ガイド部材が降下した際に落ち込む陥凹部を設けたことを特徴とする通路開閉用昇降シャッター。A passage opening / closing elevating shutter that raises / lowers a shielding member to open / close a passage opening,
In the shielding member, a suitable number of lifting guide members running in the horizontal direction are provided in parallel at appropriate intervals from the lowermost end to the upper end side of the shielding member, and the lifting guide member in the middle from the uppermost stage is freely pliable. As described above, a towing line fixed to the lowermost lifting guide member is provided, and by pulling up the towing line, the lifting guide members from the lower stage to the upper stage are sequentially raised, and a shielding member between the lifting guide members is provided. In the elevating shutter for opening and closing the passage opening the passage opening by raising the entire shielding member by folding each part,
A guide groove is provided at the left and right of the passage opening so that the end of the pull-up guide member can be freely moved up and down. A lower part of the guide groove is a fall-down portion when the lowermost pull-up guide member falls. A passage opening / closing elevating shutter characterized by having a recess. 遮蔽部材を昇降させて通路口を開閉する通路開閉用昇降シャヅターであつて、
当該遮蔽部材には、水平方向に走る引上ガイド部材を遮蔽部材の最下端から上端側へかけて適当間隔を空けて適当数平行に設け、最上段から途中の引上ガイド部材を融通自在に通り、最下段の引上ガイド部材に固定された牽引索条を設け、当該牽引索条の引上によって、下段から上段側の引上ガイド部材を順次上昇させ、引上ガイド部材間の遮蔽部材部分をそれぞれ折り成して、遮蔽部材全体を上昇させて通路口を開く通路開閉用昇降シャッターに於いて、
上記通路口の左右には上記引上ガイド部材の端部が上下動自在に収まるガイド溝を配設し、当該ガイド溝の下部には、最下段の引上ガイド部材が降下した際に落ち込む陥凹部と、陥落した引上ガイド部材の当該陥凹部からの離脱を阻止する阻止部材とから成るロック機構を設けたことを特徴とする通路開閉用昇降シャッター。A passage opening / closing elevating shutter that raises / lowers a shielding member to open / close a passage opening,
In the shielding member, a suitable number of lifting guide members running in the horizontal direction are provided in parallel at appropriate intervals from the lowermost end to the upper end side of the shielding member, and the lifting guide member in the middle from the uppermost stage is freely pliable. As described above, a towing line fixed to the lowermost lifting guide member is provided, and by pulling up the towing line, the lifting guide members from the lower stage to the upper stage are sequentially raised, and a shielding member between the lifting guide members is provided. In the elevating shutter for opening and closing the passage opening the passage opening by raising the entire shielding member by folding each part,
A guide groove is provided at the left and right of the passage opening so that the end of the pull-up guide member can be freely moved up and down. A lower part of the guide groove is a fall-down portion when the lowermost pull-up guide member falls. A passage opening / closing elevating shutter provided with a lock mechanism including a concave portion and a blocking member for preventing a fall-in pull-up guide member from coming off from the concave portion. 遮蔽部材を昇降させて通路口を開閉する通路開閉用昇降シャッターであつて、
当該遮蔽部材には、水平方向に走る引上ガイド部材を遮蔽部材の最下端から上端側へかけて適当問隔を空けて適当数平行に設け、最上段から途中の引上ガイド部材を融通自在に通り、最下段の引上ガイド部材に固定された牽引索条を設け、当該牽引索条の引上によって、下段から上段側の引上ガイド部材を順次上昇させ引上ガイド部材間の遮蔽部材部分をそれぞれ折り成して、遮蔽部材全体を上昇させて通路口を開く通路開閉用昇降シャッターに於いて、
上記通路口の左右には上記引上ガイド部材の端部が上下動自在に収まるガイド溝を配設し、当該ガイド溝の下部には、最下段の引上ガイド部材が降下した際に落ち込む陥凹部と、陥落した引上ガイド部材の当該陥凹部からの離脱を阻止する阻止部材とから成るロック機構を設け、
当該ロック機構は、陥凹部に最下段の引上ガイド部材が陥落したことを検知する遮蔽完了センサからの遮蔽信号により阻止部材でロックさせる自動施錠手段と、通路口を開くための開動作信号により阻止部材のロックを解除する自動解錠手段とを有することを特徴とする通路開閉用昇降シャッター。A passage opening / closing elevating shutter that raises / lowers a shielding member to open / close a passage opening,
In the shielding member, a suitable number of lifting guide members running in the horizontal direction are provided in parallel with a suitable interval from the lowermost end to the upper end side of the shielding member, and the lifting guide member in the middle from the uppermost stage is freely pliable. As described above, a towing line fixed to the lowermost lifting guide member is provided, and by pulling up the towing line, the lifting guide members from the lower stage to the upper stage are sequentially raised, and a shielding member between the lifting guide members is provided. In the elevating shutter for opening and closing the passage opening the passage opening by raising the entire shielding member by folding each part,
A guide groove is provided at the left and right of the passage opening so that the end of the pull-up guide member can be freely moved up and down. A lower part of the guide groove is a fall-down portion when the lowermost pull-up guide member falls. A locking mechanism comprising a recess and a blocking member for preventing the fall-off pull-up guide member from coming off from the recess,
The locking mechanism includes an automatic locking unit that locks with the blocking member by a shielding signal from a shielding completion sensor that detects that the lowermost lifting guide member has fallen into the recess, and an opening operation signal for opening the passage opening. A passage opening / closing elevating shutter having automatic unlocking means for unlocking a blocking member.

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