JP2509152Y2 - Shutter safety device - Google Patents

Description

【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、シャッターの開閉作動を制御する開閉制御
機構を、シャッターカーテン開閉領域全域において障害
物を検知する座板スイッチに連動連結したシャッターの
安全装置に係り、特に、まぐさ部の受信部に至る障害物
検知信号を、座板框内から案内レール内に経た折曲伝送
路で伝送し、外部光、埃、雨水等の外的影響を受けるこ
となく、常に高い検知精度を保持し得て確実な障害物検
知を行うことができるシャッターの安全装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a shutter in which an opening / closing control mechanism for controlling opening / closing operation of a shutter is interlocked with a seat plate switch for detecting an obstacle in the entire opening / closing area of the shutter curtain. Related to safety devices, especially the obstacle detection signal reaching the receiving part of the lintel is transmitted by a bent transmission path from the seat board frame to the guide rail, and external influences such as external light, dust, rainwater, etc. The present invention relates to a safety device for a shutter that can always maintain high detection accuracy and can reliably detect an obstacle without receiving any damage.

［従来の技術］ 従来、建物の開口部を開閉する電動シャッターの下降
時に、シャッター開閉領域内での人や障害物の挟み込み
による事故やシャッターカーテンの破損等を防止するた
め、シャッターカーテンの開閉制御機構に障害物を検知
する検知機構を連動連結し、障害物を検知した際に、シ
ャッターカーテンの下降を停止させるように構成したシ
ャッターの安全装置が知られている。[Prior Art] Conventionally, opening / closing control of a shutter curtain is performed in order to prevent accidents due to a person or an obstacle being caught in the shutter opening / closing area or damage to the shutter curtain when the electric shutter for opening / closing a building is lowered. There is known a shutter safety device configured to interlock a detection mechanism for detecting an obstacle with the mechanism and stop the descending of the shutter curtain when the obstacle is detected.

ところが、上記構成のものでは、シャッターカーテン
下降時に、該シャッターカーテン下端部の座板に設けた
マイクロスイッチ等の接触スイッチの当接、あるいは赤
外線投光器等により構成される検知光路の遮断により障
害物を検知するように構成されているため、必然的に接
触スイッチのアクチュエータや赤外線受光器の投受光面
は、シャッターカーテンや該シャッターカーテンを案内
する案内レールの外表面に露出して配設せねばならず、
外部からの太陽光、あるいは埃、雨水等の浸入、付着に
より、障害物の検知精度が低下して誤動作の原因とな
り、最悪の場合には、障害物検知不能に陥って人身事
故、障害物破損事故等を誘発してしまう、という重大な
欠点を有するものであった。However, in the above configuration, when the shutter curtain descends, an obstacle is caused by contact with a contact switch such as a micro switch provided on the seat plate at the lower end of the shutter curtain or by blocking the detection optical path formed by an infrared projector or the like. Since it is configured to detect, the actuator of the contact switch and the light emitting / receiving surface of the infrared light receiver must be disposed so as to be exposed on the outer surface of the shutter curtain and the guide rail that guides the shutter curtain. No
Intrusion or adhesion of sunlight, dust, rainwater, etc. from the outside will reduce the accuracy of obstacle detection and cause malfunctions.In the worst case, the obstacle cannot be detected, resulting in personal injury or damage to the obstacle. It had a serious drawback of inducing the above.

［考案が解決しようとする課題］ 本考案は、上記の如き実状に鑑み従来の欠点を解消す
べく創案されたものであって、その目的とするところ
は、シャッターカーテン開閉領域内の障害物を、座板ス
イッチの当接状態に連動して検知した後、座板框に内装
された発信部より発する障害物検知信号を、まぐさ部の
受信部に至る間で、座板框内から案内レール内を経た折
曲伝送路で伝送し、外部光、埃、雨水等の外的影響を受
けることなく、常に高い検知精度を保持し得て確実な障
害物検知を行うことができるシャッターの安全装置を提
供しようとするものである。[Problems to be Solved by the Invention] The present invention was conceived in view of the above situation to solve the conventional drawbacks, and its purpose is to eliminate obstacles in the shutter curtain opening / closing area. After detecting the contact state of the seat plate switch, guide the obstacle detection signal from the transmitter installed in the seat plate frame from the seat plate frame to the receiving part of the lintel part. The safety of the shutter that transmits by the bent transmission path that goes through the rail, can always maintain high detection accuracy and can reliably detect obstacles without being affected by external light, dust, rainwater, etc. It is intended to provide a device.

［課題を解決するための手段］ 課題を解決するため、本考案が採用した技術的手段
は、上下動自在な座板を下部に遊嵌した座板框に、障害
物を検知する検知スイッチと障害物検知信号を水平方向
に発する発信部をそれぞれ内装して座板スイッチを形成
し、かつ上記検知信号を受信して開閉機を停止する受信
部を、案内レール内の上端に位置するまぐさ部に設ける
一方、発信部からの検知信号を反射する回動自在な信号
折曲部材を、前記座板框の側端部より内側に収納し、障
害物検知で座板が上動した際、反射面を座板框内から案
内レール内に向けて突出し、発信部からの検知信号を上
記反射面を介して受信部に伝送するように構成したこと
を特徴とするものである。[Means for Solving the Problem] In order to solve the problem, the technical means adopted by the present invention is to detect a obstacle on a seat plate frame in which a vertically movable seat plate is loosely fitted to the lower part. The transmitters that emit obstacle detection signals in the horizontal direction are respectively installed to form seat plate switches, and the receivers that receive the above detection signals and stop the opening and closing are equipped with a lintel located at the upper end of the guide rail. On the other hand, the rotatable signal bending member that reflects the detection signal from the transmitting unit is housed inside the side end of the seat plate frame, and when the seat plate moves upward due to obstacle detection, It is characterized in that the reflecting surface is projected from the seat plate frame toward the inside of the guide rail, and the detection signal from the transmitting portion is transmitted to the receiving portion via the reflecting surface.

［作用］ したがって、本考案によれば、シャッターカーテンの
下降時に、該シャッターカーテン開閉領域内の障害物
を、外部光あるいは埃、雨水等の浸入、付着による検知
精度低下の影響を受けることなく、確実に検知して安全
なシャッターの開閉作動を確保することができる。[Operation] Therefore, according to the present invention, when the shutter curtain descends, the obstacle in the shutter curtain opening / closing area is not affected by the deterioration of the detection accuracy due to the invasion or adhesion of external light, dust, rainwater, or the like. It is possible to reliably detect and ensure safe opening and closing of the shutter.

［実施例］ 本考案の構成を、図面に示した一実施例に基づいて詳
細に説明する。[Embodiment] The configuration of the present invention will be described in detail based on an embodiment shown in the drawings.

第１図および第２図において、１は建物開口部に設け
られたシャッターカーテンであり、該シャッターカーテ
ン１は、左右に配設された案内レール２、２に案内され
て開閉作動する。また、３は、シャッターカーテン１の
開閉機であって、該開閉機３の正逆回転駆動により、シ
ャッターカーテン１はシャッターケース3a内に巻き上
げ、巻戻し作動されるように開閉制御機構3bが構成され
ている。In FIGS. 1 and 2, reference numeral 1 is a shutter curtain provided in a building opening, and the shutter curtain 1 is opened and closed by being guided by guide rails 2 and 2 arranged on the left and right. Reference numeral 3 denotes an opening / closing device for the shutter curtain 1, and the opening / closing control mechanism 3b is configured so that the shutter curtain 1 is rolled up in the shutter case 3a and is rewound by the forward / reverse rotation driving of the opening / closing device 3. Has been done.

上記シャッターカーテン１の下端部には座板框４が形
成されており、第３図（ａ）および（ｂ）に示す如く、
上記座板框４の下面開口部4aには、座板５が係止突条部
5aを介して上下動自在に吊設されている。また、座板框
４の内面に形成された補強リブ4bの下面には、座板５の
係止突条部5a間に形成される凹部６に臨ませて下方に出
没自在なアクチュエータ7aを備えた検知スイッチ７が取
着されており、一方を電池9a、9a側に接続した接点出力
線８の他方を、座板框４内側面に配設された発信部９に
接続し、上記検知スイッチ７のON/OFFにより発信部９の
投光孔11から発せられる検知信号の送出および停止を行
うと共に、係止突条部5aに当接する検知面12aと、内面
側の反射面12bとを一体に形成してなる断面Ｌ字状の信
号折曲部材12が、上記座板框４の一側面4cを切欠いて形
成され、該信号折曲部材12は、回動軸12cを回動支点と
して案内レール２内に向けて開度可変に枢設されてい
る。A seat plate frame 4 is formed at the lower end of the shutter curtain 1, and as shown in FIGS. 3 (a) and 3 (b),
The seat plate 5 is engaged with the protrusion 4 at the lower surface opening 4a of the seat plate frame 4.
It is suspended vertically via 5a. Further, on the lower surface of the reinforcing rib 4b formed on the inner surface of the seat plate frame 4, there is provided an actuator 7a which can be retracted downward so as to face the concave portion 6 formed between the locking projections 5a of the seat plate 5. The detection switch 7 is attached, and the other of the contact output lines 8 of which one side is connected to the batteries 9a and 9a side is connected to the transmission section 9 arranged on the inner side surface of the seat frame 4 to detect the detection switch. The ON / OFF of 7 sends and stops the detection signal emitted from the light projecting hole 11 of the transmitting portion 9, and the detection surface 12a that comes into contact with the locking projection 5a and the inner reflection surface 12b are integrated. A signal bending member 12 having an L-shaped cross section formed by cutting is formed by notching one side surface 4c of the seat plate frame 4, and the signal bending member 12 is guided by using a rotation shaft 12c as a rotation fulcrum. It is pivotally installed with a variable opening degree toward the inside of the rail 2.

また、上記信号折曲部材12を軸支する回動軸12cに
は、コイル状の付勢弾機14が同軸状に嵌装されており、
常時は信号折曲部材12を閉鎖方向に付勢し、かつ障害物
検知で座板５が上動した際には、係止突条部5aに当接す
る検知面12aの押上げ回動で、信号折曲部材12を案内レ
ール２側に向けて拡開し、その反射面12bを介して発信
部９の投光孔11から発せられる検知信号を垂直方向に折
曲し、まぐさ部に配設された受信部13に検知信号を伝送
することにより、開閉制御機構3bの作動を停止するよう
に座板スイッチ10が構成されている。In addition, a coil-shaped biasing ammunition machine 14 is coaxially fitted to the rotating shaft 12c that pivotally supports the signal bending member 12.
Normally, the signal bending member 12 is biased in the closing direction, and when the seat plate 5 moves upward due to the obstacle detection, the detection surface 12a that comes into contact with the locking projection 5a is pushed up and rotated, The signal bending member 12 is expanded toward the guide rail 2 side, and the detection signal emitted from the light projecting hole 11 of the transmitting portion 9 is bent in the vertical direction via the reflection surface 12b thereof, and is distributed to the lintel portion. The seat plate switch 10 is configured so that the operation of the opening / closing control mechanism 3b is stopped by transmitting a detection signal to the receiving unit 13 provided.

叙上の如き構成において、シャッターカーテン１の下
降作動時に、シャッター開閉領域内に障害物が存在する
場合には、シャッターカーテン１の座板スイッチ10が障
害物に当接した際、座板５の係止突条部5aが座板框４の
下面開口部4a内に没入し、凹部６が上昇して検知スイッ
チ７のアクチュエータ7aを押上げ、該検知スイッチ７は
閉成状態となる。In the above configuration, when there is an obstacle in the shutter opening / closing area when the shutter curtain 1 is descending, when the seat plate switch 10 of the shutter curtain 1 comes into contact with the obstacle, the seat plate 5 moves. The locking projection 5a is recessed in the lower surface opening 4a of the seat plate frame 4, the recess 6 is raised and the actuator 7a of the detection switch 7 is pushed up, and the detection switch 7 is closed.

この時、上記検知スイッチ７の閉成で、電池9aの電力
が発信部９に入力されて、検知信号が発信部９の投光孔
11から水平方向に発せられると同時に、係止突条部5aに
当接する検知面12aの押上げ回動で、信号折曲部材12が
案内レール２側に向けて拡開される。そして、上記信号
折曲部材12の反射面12bを介して垂直方向に折曲された
検知信号が案内レール２内で受信部13に伝送され、開閉
制御機構３によるシャッターカーテン１の下降作動が停
止されることになる。At this time, when the detection switch 7 is closed, the power of the battery 9a is input to the transmitter 9 and the detection signal is transmitted to the transmitter 9 of the transmitter 9.
The signal bending member 12 is expanded toward the guide rail 2 side by being pushed out of the detection surface 12a which comes in contact with the locking protrusion 5a at the same time as being emitted from 11 in the horizontal direction. Then, the detection signal bent in the vertical direction is transmitted to the receiver 13 in the guide rail 2 via the reflecting surface 12b of the signal bending member 12, and the lowering operation of the shutter curtain 1 by the opening / closing control mechanism 3 is stopped. Will be done.

このように、シャッターカーテン１開閉領域内の障害
物を、座板５当接状態に連動して座板框４内の検知スイ
ッチ７により検知するように座板スイッチ10を構成し、
信号折曲部材12を介して座板框４内の発信部７から発せ
られる検知信号を案内レール２内を伝送して受信部13に
送出し、かつ常時は信号折曲部材12の反射面12bが座板
框４内に収納されているので、外部光あるいは埃、雨水
等の浸入、付着の影響による検知精度の低下を招くこと
なく、常に確実な障害物検知を行うことができるばかり
でなく、実施例においては、信号折曲部材12が発信部９
に駆動電力を供給する電池9aの開閉蓋を兼ねるため、電
池9aの交換を容易に行うことができる。In this way, the seat plate switch 10 is configured to detect the obstacle in the opening / closing area of the shutter curtain 1 by the detection switch 7 in the seat plate frame 4 in association with the contact state of the seat plate 5.
The detection signal emitted from the transmitting portion 7 in the seat frame 4 via the signal bending member 12 is transmitted in the guide rail 2 and is sent to the receiving portion 13, and the reflecting surface 12b of the signal bending member 12 is always present. Since it is housed in the seat board frame 4, not only can reliable detection of obstacles be carried out at all times without degrading the detection accuracy due to the influence of external light, dust, rainwater, or the like entering and adhering. In the embodiment, the signal bending member 12 is the transmitter 9.
Since it also serves as an opening / closing lid for the battery 9a that supplies driving power to the battery, the battery 9a can be easily replaced.

なお、本実施例では、係止突条部5aに当接する検知面
12aと、内面側の反射面12bとを一体に形成してなる断面
Ｌ字状の信号折曲部材12を、座板框４の一側面4cを切欠
いて構成したものを示したが、これに限定されるもので
はなく、第４図（ａ）（ｂ）に示す如く、座板框４内の
側端部に、一方に反射面14を形成し、かつ他方に検知面
15を備えた信号折曲部材16を収納して、上記検知面15の
先端部に図示しない発信部用電源をON/OFFする接点端子
ａを取着し、座板５の検知突条部5bがシャッターカーテ
ン１開閉領域内の障害物により突き上げられて、上記検
知面15を上方に回動させた際、接点端子ａが座板框４上
端の内面に固着された接点端子ｂと当接して図示しない
発信部用電源がONになり、発信部９の検知信号が発せら
れると同時に、反射面14が回動し、上記発信部９の検知
信号を案内レール２内で折曲して、受信部13へ送出する
ように座板スイッチ10を構成してもよい。In this embodiment, the detection surface that abuts on the locking protrusion 5a.
A signal bending member 12 having an L-shaped cross section formed by integrally forming 12a and a reflecting surface 12b on the inner surface side is shown in which one side surface 4c of the seat plate frame 4 is cut out. As shown in FIGS. 4 (a) and 4 (b), the reflecting surface 14 is formed on one side and the detecting surface is formed on the other side at the side end portion of the seat frame 4 without being limited thereto.
The signal bending member 16 provided with 15 is housed, the contact terminal a for turning on / off the power supply for the transmitter (not shown) is attached to the tip of the detection surface 15, and the detection protrusion 5b of the seat plate 5 is attached. Is pushed up by an obstacle in the opening / closing area of the shutter curtain 1, and when the detection surface 15 is rotated upward, the contact terminal a comes into contact with the contact terminal b fixed to the inner surface of the upper end of the seat plate frame 4. At the same time when the power supply for the transmitting unit (not shown) is turned on and the detection signal of the transmitting unit 9 is emitted, the reflecting surface 14 rotates and the detection signal of the transmitting unit 9 is bent in the guide rail 2 and received. The seat plate switch 10 may be configured to deliver to the section 13.

［考案の効果］ これを要するに、本考案は、上下動自在な座板を下部
に遊嵌した座板框に、障害物を検知する検知スイッチと
障害物検知信号を水平方向に発する発信部をそれぞれ内
装して座板スイッチを形成し、かつ上記検知信号を受信
して開閉機を停止する受信部を、案内レール内の上端に
位置するまぐさ部に設ける一方、発信部からの検知信号
を反射する回動自在な信号折曲部材を、前記座板框の側
端部より内側に収納し、障害物検知で座板が上動した
際、反射面を座板框内から案内レール内に向けて突出
し、発信部からの検知信号を上記反射面を介して受信部
に伝送するように構成したから、常時は信号折曲部材を
座板框の側端部より内側に収納し、障害物を検知した場
合にのみ、座板框内から反射面が突出するので、その反
射面に対する外部光による誤動作を一掃することがで
き、かつ埃、雨水等の反射面への付着を遮断して、信号
折曲部材の反射機能を最良の状態に保持することができ
ると共に、検知信号の伝送路における信頼性を向上させ
て、速やかに障害物検知信号を受信部に送出して開閉機
の駆動を確実に停止せしめることができ、人身事故、障
害物破損事故等を未然に防止することができるばかりで
なく、シャッターカーテンおよび案内レール等の外表面
に検知機構が露出しないので、外観上の見苦しさをも解
消することができる、等という極めて有用な実用的効果
を奏するものである。[Effects of the Invention] In short, according to the present invention, a seat switch having a vertically movable seat plate loosely fitted to the lower part has a detection switch for detecting an obstacle and a transmitter for horizontally outputting an obstacle detection signal. A receiving part that is internally mounted to form a seat plate switch and that receives the detection signal and stops the switch is installed in the lintel located at the upper end of the guide rail, while the detection signal from the transmission part is transmitted. A rotatable signal bending member that reflects light is stored inside the side edge of the seat plate frame, and when the seat plate moves upward when an obstacle is detected, the reflecting surface is moved from the seat plate frame into the guide rail. Since it is configured to project toward the receiver and transmit the detection signal from the transmitting unit to the receiving unit through the reflecting surface, the signal bending member is normally housed inside the side end of the seat board frame to prevent obstacles. The reflective surface projects from the inside of the seat frame only when It is possible to eliminate malfunctions due to external light, and to prevent dust, rainwater, etc. from adhering to the reflecting surface, and to keep the reflection function of the signal bending member in the optimum state. The reliability of the transmission line can be improved, and the obstacle detection signal can be sent to the receiving section promptly to stop the drive of the opening / closing device surely, and personal injury, obstacle damage accident, etc. can be prevented beforehand. Not only is it possible, but the detection mechanism is not exposed on the outer surfaces of the shutter curtain, guide rails, etc., so that it is possible to eliminate the unsightly appearance, which is a very useful practical effect.

【図面の簡単な説明】[Brief description of drawings]

図面は本考案に係るシャッターの安全装置の一実施例を
示すものであって、第１図は全体正面図、第２図は要部
底面図、第３図（ａ）は要部斜視図、同図（ｂ）は障害
物検知における各部の動作を示す作用説明図、第４図
（ａ）（ｂ）は他の実施例を示す作用説明図である。 図中、 １……シャッターカーテン、２、２……案内レール、４
……座板框、５……座板、７……検知スイッチ、９……
発信部、10……座板スイッチ、12、16……信号折曲部
材、12a、15……検知面、12b、14……反射面、13……受
信部 である。FIG. 1 shows an embodiment of a shutter safety device according to the present invention. FIG. 1 is an overall front view, FIG. 2 is a bottom view of a main part, and FIG. 3 (a) is a perspective view of the main part. FIG. 4B is an operation explanatory view showing the operation of each part in obstacle detection, and FIGS. 4A and 4B are operation explanatory views showing another embodiment. In the figure, 1 ... Shutter curtain, 2, 2 ... Guide rail, 4
…… Seat plate frame, 5 …… Seat plate, 7 …… Detection switch, 9 ……
Transmitting part, 10 ... Seat plate switch, 12, 16 ... Signal bending member, 12a, 15 ... Sensing surface, 12b, 14 ... Reflecting surface, 13 ... Receiving part.

───────────────────────────────────────────────────── フロントページの続き (72)考案者 森 広三郎 東京都新宿区西新宿２丁目１番１号 三 和シヤッター工業株式会社内 (72)考案者 上杉 宴弘 東京都新宿区西新宿２丁目１番１号 三 和シヤッター工業株式会社内 (56)参考文献 実開 平２−13700（ＪＰ，Ｕ) 実開 昭63−136200（ＪＰ，Ｕ) 実公 昭60−35758（ＪＰ，Ｙ２) 実公 昭55−53036（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continued Front Page (72) Kozaburo Mori 2-1-1, Nishishinjuku, Shinjuku-ku, Tokyo Sanwa Shatter Industry Co., Ltd. No. 1 within Sanwa Shatter Industry Co., Ltd. (56) References Actual flats 2-13700 (JP, U) Actual opens 63-136200 (JP, U) Actual public Sho 60-35758 (JP, Y2) Actual public 55-53036 (JP, Y2)

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of utility model registration request] 【請求項１】上下動自在な座板を下部に遊嵌した座板框
に、障害物を検知する検知スイッチと障害物検知信号を
水平方向に発する発信部をそれぞれ内装して座板スイッ
チを形成し、かつ上記検知信号を受信して開閉機を停止
する受信部を、案内レール内の上端に位置するまぐさ部
を設ける一方、発信部からの検知信号を反射する回動自
在な信号折曲部材を、前記座板框の側端部より内側に収
納し、障害物検知で座板が上動した際、反射面を座板框
内から案内レール内に向けて突出し、発信部からの検知
信号を上記反射面を介して受信部に伝送するように構成
したことを特徴とするシャッターの安全装置。1. A seat plate switch in which a vertically movable seat plate is loosely fitted to a lower part thereof, and a detection switch for detecting an obstacle and a transmitting portion for horizontally outputting an obstacle detection signal are respectively installed in the seat plate switch. A receiving part for forming the receiving part, which receives the detection signal and stops the switch, is provided with a lintel part located at the upper end in the guide rail, while a rotatable signal folding part for reflecting the detection signal from the transmitting part. The bending member is housed inside the side end portion of the seat plate frame, and when the seat plate moves upward due to obstacle detection, the reflecting surface projects from the seat plate frame toward the guide rail, and from the transmitting part. A shutter safety device, characterized in that a detection signal is transmitted to a receiving unit via the reflecting surface.