JP3364351B2 - Elevator car door pry open prevention device - Google Patents
Elevator car door pry open prevention deviceInfo
- Publication number
- JP3364351B2 JP3364351B2 JP02981295A JP2981295A JP3364351B2 JP 3364351 B2 JP3364351 B2 JP 3364351B2 JP 02981295 A JP02981295 A JP 02981295A JP 2981295 A JP2981295 A JP 2981295A JP 3364351 B2 JP3364351 B2 JP 3364351B2
- Authority
- JP
- Japan
- Prior art keywords
- latch
- car door
- stopper
- door
- elevator car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Door Apparatuses (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はエレベータかご扉こじ開
け防止装置、特に走行中のエレベータのかご扉をかご内
の乗客がこじ開けることを防止するエレベータかご扉こ
じ開け防止装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car door prying prevention device, and more particularly to an elevator car door prying prevention device for preventing passengers inside the car from prying open the elevator car door.
【０００２】[0002]
【従来の技術】図９には、従来のエレベータのかごの開
閉機構の一例が示されている。図９を用いて、以下かご
扉の一方のみの開閉機構について説明する。2. Description of the Related Art FIG. 9 shows an example of a conventional elevator car opening / closing mechanism. The opening / closing mechanism for only one of the car doors will be described below with reference to FIG.
【０００３】かご扉１の上方には、吊り手２が取り付け
られ、この吊り手２には、吊りローラ４が取り付けられ
ている。一方、かごには、吊りレール３が固定されてお
り、吊りローラ４が吊りレール３上を移動することによ
ってかご扉１が開閉移動する。また、かご上の一方には
戸閉め電動機５が設置され、かごの左右には滑車６が取
り付けられている。戸閉め電動機５の回転は、ベルト７
によって一方の滑車６に伝えられる。また、連動ロープ
８の両端は、両滑車６を介してそれぞれ吊り手２に取り
付けられた止め金９に連結されている。従って、戸閉め
電動機５が閉方向に回転すると、滑車６を介して連動ロ
ープ８は矢印Ａの方向に動き、止め金９を引き、かご扉
１も閉方向に動く。A suspending hand 2 is attached above the car door 1, and a suspending roller 4 is attached to the suspending hand 2. On the other hand, the suspension rail 3 is fixed to the car, and the suspension roller 4 moves on the suspension rail 3 to open and close the car door 1. A door closing electric motor 5 is installed on one side of the car, and pulleys 6 are installed on the left and right sides of the car. The rotation of the door closing electric motor 5 is performed by the belt 7
Is transmitted to one pulley 6 by. Further, both ends of the interlocking rope 8 are connected to the stoppers 9 attached to the hanger 2 via both pulleys 6, respectively. Therefore, when the door closing electric motor 5 rotates in the closing direction, the interlocking rope 8 moves in the direction of the arrow A via the pulley 6, pulls the stopper plate 9, and the car door 1 also moves in the closing direction.
【０００４】スイッチ１０は、かご扉の全閉を検出する
スイッチであり、かご扉１が全閉するとスイッチ１０が
切れて、戸閉め電動機５への給電を断ち、かご扉１の動
きは止まる。The switch 10 is a switch for detecting the full closing of the car door. When the car door 1 is fully closed, the switch 10 is cut off, the electric power supply to the door closing electric motor 5 is cut off, and the movement of the car door 1 is stopped.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来のエレベータのかごの開閉機構では、かご扉１が全閉
中にかご扉１に開方向の外力を加えると、例えばかご内
の乗客がいたずらで戸開き方向にこじ開けると、この時
点ではスイッチ１０が切れているため、かご扉１は開い
てしまう。すなわち、スイッチ１０が切れていると、上
述したように戸閉め電動機５への給電はなされていない
ために、かご扉１を閉じる方向への力が働かない。従っ
て、かご扉１は、開方向の外力によりこじ開けられてし
まう。However, in the conventional elevator car opening / closing mechanism described above, if an external force in the opening direction is applied to the car door 1 while the car door 1 is fully closed, for example, passengers in the car may be mischievous. When the door is opened in the door opening direction, the car door 1 is opened because the switch 10 is off at this point. That is, when the switch 10 is turned off, no power is supplied to the door closing electric motor 5 as described above, so that no force acts in the direction of closing the car door 1. Therefore, the car door 1 is pry open by the external force in the opening direction.
【０００６】また、スイッチ１０がＯＮされ、戸閉め電
動機５に電流が流れたとしても、戸閉め電動機５による
閉方向のトルク以上に外力が加えられた場合には、かご
扉はこじ開けられてしまう。Further, even if the switch 10 is turned on and a current flows through the door closing electric motor 5, if the external force exceeds the torque in the closing direction by the door closing electric motor 5, the car door will be pry open. .
【０００７】この外力によってかご扉がこじ開けられる
と、故障発報はあるが、自動復帰してしまうために、原
因が特定されず、エレベータの管理が煩雑となる。When the car door is opened by this external force, a failure is reported but the cause is not specified because the alarm is automatically recovered, and the elevator management becomes complicated.
【０００８】本発明は上記課題に鑑みなされたものであ
り、その目的は、走行中のエレベータのかご扉をかご内
の乗客がこじ開けることを防止するエレベータかご扉こ
じ開け防止装置を提供することである。The present invention has been made in view of the above problems, and an object thereof is to provide an elevator car door prying prevention device that prevents passengers in the car from prying the elevator car door during traveling. .
【０００９】[0009]
【課題を解決するための手段】以上のような課題を解決
するために、本発明に係るエレベータかご扉こじ開け防
止装置は、以下の特徴を有する。In order to solve the above problems, the elevator car door prying open prevention device according to the present invention has the following features.
【００１０】（１）かごの左右に設けられた滑車を介し
て、かご扉の上部に取り付けられた吊り手の左右にその
先端が連結される連動ロープを有し、滑車の回転によっ
てかご扉を開閉するエレベータかごにおいて、前記連動
ロープの一端と連結され支点軸を支点として前記吊り手
に回転可能に取り付けられ上端には掛け金を有する止め
金と、かごに取り付けられ前記止め金の掛け金と噛み合
う溝を有するラックと、前記吊り手に取り付けられ前記
止め金の掛け金が前記ラックの溝に噛み合った際に前記
止め金の回転を規制するストッパと、前記止め金の下端
と前記吊り手とを連結しかご扉閉方向に前記止め金を引
っ張る引きバネと、を有する。(1) There are interlocking ropes whose ends are connected to the left and right of a hanging hand attached to the upper part of the car door through pulleys provided on the left and right of the car, and the car door is rotated by the rotation of the pulley. In an elevator car that opens and closes, a clasp that is connected to one end of the interlocking rope and is rotatably attached to the hanging hand with a fulcrum shaft as a fulcrum and has a latch at the upper end, and a groove that is attached to the car and meshes with the latch of the clasp. A rack having a stopper for restricting rotation of the stopper when the latch of the stopper is engaged with a groove of the rack, the lower end of the stopper being connected to the hook. A pulling spring that pulls the stopper plate in the door closing direction.
【００１１】（２）上記（１）に記載のエレベータかご
扉こじ開け防止装置において、前記掛け金は、前記止め
金の上端に他の支点軸を支点として回転可能に取り付け
られ、更に、前記止め金は、前記掛け金が前記ラックの
溝に噛み合った際に掛け金の回転を止める他のストッパ
と、前記掛け金の下端と前記止め金とを連結し前記掛け
金の回転を規制する他の引きバネと、を有する。(2) In the elevator car door prying open prevention device according to (1), the latch is the stopper.
It is attached to the upper end of the gold so that it can rotate around another fulcrum shaft
Is further said stopper plate, the rotation of the previous SL connected with other stopper for stopping the rotation of the latch when the latch is engaged with the groove of the rack, and a lower end and the catch of the latch the latch And another pulling spring which regulates.
【００１２】（３）かごの左右に設けられた滑車を介し
て、かご扉の上部に取り付けられた吊り手の左右にその
先端が連結される連動ロープを有し、滑車の回転によっ
てかご扉を開閉するエレベータかごにおいて、前記吊り
手に固定され前記連動ロープの一端と連結された止め金
と、前記止め金の上端に支点軸を支点として回転可能に
取り付けられた掛け金と、前記掛け金に常時当接し前記
止め金を貫通した前記連動ロープの一端が連結される座
金と、前記座金と止め金とを連結する押しバネと、かご
に取り付けられ前記掛け金と噛み合う溝を有するラック
と、を有する。(3) There are interlocking ropes whose ends are connected to the left and right of a hanging hand attached to the upper part of the car door through pulleys provided on the left and right of the car, and the car door is rotated by the rotation of the pulley. In an elevator car that opens and closes, a clasp fixed to the hanging hand and connected to one end of the interlocking rope, a clasp rotatably attached to the upper end of the clasp with a fulcrum shaft as a fulcrum, and the clasp always applied to the latch. There is a washer which is connected to one end of the interlocking rope which is in contact with the stopper and which penetrates the stopper, a push spring which connects the washer and the stopper, and a rack which is attached to the car and has a groove which meshes with the latch.
【００１３】[0013]
【作用】以上のように構成された本発明に係るエレベー
タかご扉こじ開け防止装置によれば、連動ロープによっ
てかご扉が戸閉めされている際又は戸閉めされた後に、
かご扉がこじ開けられると、連動ロープの一端に連結さ
れた止め金の上部は戸閉め方向に引っ張られ、一方吊り
手に連結された止め金の下部は戸開き方向に引っ張られ
る。従って、支点軸を支点として止め金が回転し、止め
金の上端に取り付けられた掛け金が、かごに取り付けら
れたラックの溝に噛み合い、更にストッパにより止め金
の回転が阻止され、それ以上かご扉は開かなくなる。一
方、止め金の下端には、連動ロープによってかご扉を閉
方向に引く力と釣り合いをとるためにかご扉閉方向に止
め金を引っ張る引きバネが設けられているので、連動ロ
ープによってかご扉が戸閉め方向に引っ張られている際
に、止め金が回転して掛け金がラックの溝に噛み合わな
いように止め金の回転を規制している。According to the elevator car door prying open prevention device of the present invention configured as described above, when the car door is closed by the interlocking rope or after the door is closed,
When the car door is pry open, the upper part of the clasp connected to one end of the interlocking rope is pulled in the door closing direction, while the lower part of the clasp connected to the sling is pulled in the door opening direction. Therefore, the stopper plate rotates around the fulcrum shaft as a fulcrum, the latch attached to the upper end of the stopper plate meshes with the groove of the rack attached to the car, and the stopper prevents the stopper plate from rotating further. Will not open. On the other hand, at the lower end of the stopper plate, there is a pulling spring that pulls the stopper plate in the car door closing direction to balance the force of pulling the car door in the closing direction by the interlocking rope. The rotation of the stopper plate is regulated so that the stopper plate does not rotate and the latch plate does not engage with the groove of the rack when being pulled in the door closing direction.
【００１４】上述の止め金を長時間使用すると、止め金
の下端の引きバネの引く力が弱くなり、連動ロープによ
ってかご扉を閉方向に引く力と不釣り合いとなって、掛
け金がラックの当たり戸閉め動作を阻止する可能性があ
る。しかし、本発明は、止め金が、更にその上端に他の
支点軸を支点として回転可能に取り付けられた掛け金
と、掛け金がランクの溝に噛み合った際に掛け金の回転
を止める他のストッパと、掛け金の下端と止め金とを連
結し掛け金を回転を規制する他の引きバネと、を有する
ので、連動ロープによる戸閉め方向の引かれた際に、掛
け金の回転が他の引きバネによって規制される。従っ
て、スムースに戸閉め動作を行える。When the above stopper plate is used for a long time, the pulling force of the pulling spring at the lower end of the stopper plate becomes weak, and the interlocking rope disproportionately pulls the car door in the closing direction, so that the latch plate hits the rack. It may prevent the door from closing. However, in the present invention, the stopper is a latch that is rotatably attached to the upper end of the latch with another fulcrum shaft as a fulcrum, and another stopper that stops the rotation of the latch when the latch engages with the groove of the rank. Since it has another pulling spring that connects the lower end of the latch and the stopper to regulate the rotation of the latch, the rotation of the latch is regulated by the other pulling spring when pulled in the door closing direction by the interlocking rope. It Therefore, the door closing operation can be smoothly performed.
【００１５】また、連動ロープによってかご扉が戸閉め
されている際又は戸閉めされた後に、かご扉がこじ開け
られると、連動ロープの一端に連結された座金は戸閉め
方向に引っ張られ、一方吊り手に連結された止め金は戸
開き方向に引っ張られる。従って、座金と止め金とを連
結する押しバネが縮められ、座金が止め金に近付く。こ
のため、座金によって掛け金が押し上げられ、掛け金の
先端がラックの溝に噛み合い、かご扉のこじ開けが阻止
される。一方、通常のかご扉の戸閉じ動作中には、押し
バネによって座金と止め金との間は一定間隔に保たれる
ため、座金が掛け金を押し上げることはない。従って、
スムースに戸閉め動作を行うことができる。When the car door is closed by the interlocking rope or after the car door is closed, the washer connected to one end of the interlocking rope is pulled in the door closing direction and hung on the other hand. The clasp connected to the hand is pulled in the door opening direction. Therefore, the push spring that connects the washer and the stopper is contracted, and the washer approaches the stopper. Therefore, the washer is pushed up by the washer, the tip of the washer meshes with the groove of the rack, and the prying open of the car door is prevented. On the other hand, during the normal door closing operation of the car door, the washer does not push up the latch because the push spring keeps the washer and the stopper at a constant interval. Therefore,
The door can be closed smoothly.
【００１６】[0016]
【実施例】以下、図面に基づいて本発明の好適な一実施
例を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.
【００１７】実施例１．図１は、本発明に係る第１実施
例のエレベータかご扉こじ開け防止装置の全体構成を示
す図である。また、図２は、図１に示すエレベータかご
扉こじ開け防止装置の部分拡大図である。図３は、本発
明に係る第１実施例のエレベータかご扉こじ開け防止装
置の動作を説明する図である。尚、先に述べたエレベー
タのかご扉開閉機構と同様の構成要素には同一の符号を
付しその説明を省略する。Embodiment 1. FIG. 1 is a diagram showing an entire configuration of an elevator car door prying open prevention device according to a first embodiment of the present invention. 2 is a partially enlarged view of the elevator car door prying open prevention device shown in FIG. 1. FIG. 3 is a diagram for explaining the operation of the elevator car door prying open prevention device of the first embodiment according to the present invention. The same components as those of the elevator car door opening / closing mechanism described above are designated by the same reference numerals, and the description thereof will be omitted.
【００１８】図１及び図２に示すように、本実施例のエ
レベータかご扉こじ開け防止装置は、以下のように構成
されている。吊り手２には、吊り手２に固定された支点
軸１３を支点として回動可能に止め金２９が取り付けら
ている。この止め金２９には、連動ロープ８の一端がそ
の上部に連結され、止め金２９の上端には略Ｌ字型の掛
け金が一体成形されている。一方、かごには、上述の掛
け金と噛み合う複数の溝が形成されたラック１１がボル
ト１２によって取り付けられている。更に、吊り手２に
は、止め金２９の掛け金がラック１１の溝に噛み合った
際に止め金２９の回転を規制するストッパ１４が設けら
れている。また、止め金２９の下端と吊り手２とは、引
きバネ１５によって連結されている。As shown in FIGS. 1 and 2, the elevator car door prying open prevention apparatus of this embodiment is constructed as follows. A stopper 29 is attached to the hanging hand 2 so as to be rotatable around a fulcrum shaft 13 fixed to the hanging hand 2 as a fulcrum. One end of the interlocking rope 8 is connected to the upper portion of the stopper 29, and a substantially L-shaped latch is integrally formed on the upper end of the stopper 29. On the other hand, a rack 11 having a plurality of grooves formed therein that mesh with the above-mentioned latches is attached to the car by bolts 12. Further, the hanging hand 2 is provided with a stopper 14 for restricting the rotation of the stopper 29 when the stopper 29 is engaged with the rack 11. Further, the lower end of the stopper plate 29 and the hanging hand 2 are connected by a pulling spring 15.
【００１９】次に、本実施例のエレベータかご扉こじ開
け防止装置の動作について説明する。Next, the operation of the elevator car door prying open prevention device of this embodiment will be described.
【００２０】図１に示すように、かご扉１が戸閉め動作
中であれば、戸閉め電動機５が戸閉め方向に回転して、
滑車６を介して連動ロープ８が矢印Ａ方向に引っ張られ
る。これによって、止め金２９は矢印Ａ方向（戸閉め方
向）に引かれる。その際、止め金２９の下端の引きバネ
１５の引く力と連動ロープ８の矢印Ａ方向への引く力と
の釣り合いが取れていれば、止め金２９は直立で保持さ
れるため、ラック１１の溝に止め金２９の掛け金が噛み
合うことなくスムーズに戸閉め動作を行うことができ
る。As shown in FIG. 1, when the car door 1 is in the door closing operation, the door closing electric motor 5 rotates in the door closing direction,
The interlocking rope 8 is pulled in the direction of arrow A via the pulley 6. As a result, the stopper plate 29 is pulled in the direction of arrow A (door closing direction). At that time, if the pulling force of the pulling spring 15 at the lower end of the stopper plate 29 and the pulling force of the interlocking rope 8 in the direction of the arrow A are balanced, the stopper plate 29 is held upright, and thus the rack 11 of the rack 11 is held. The door closing operation can be smoothly performed without the latches of the stopper plate 29 engaging with the groove.
【００２１】一方、かご扉の全閉中にかご扉１に矢印Ｂ
方向の外力、すなわちこじ開け方向の力が加わると、か
ご扉１は開方向に移動する。これにより、スイッチ１０
がＯＮされ、戸閉め電動機５に電流が供給され、連動ロ
ープ８に矢印Ａ方向の力が加わり、かご扉１を閉めよう
とする。この時、矢印Ｂの力が矢印Ａの力より大きくな
ると、止め金２９は、図３に示すように支点軸１３を支
点として回転して、上端の略Ｌ字型の掛け金がラック１
１の溝に噛み合う。このため、これ以上かご扉がこじ開
けられることがない。On the other hand, while the car door is fully closed, the arrow B appears on the car door 1.
When an external force in the direction, that is, a force in the prying direction is applied, the car door 1 moves in the opening direction. As a result, the switch 10
Is turned on, current is supplied to the door closing electric motor 5, and force is applied to the interlocking rope 8 in the direction of the arrow A to close the car door 1. At this time, when the force of the arrow B becomes larger than the force of the arrow A, the stopper plate 29 rotates about the fulcrum shaft 13 as a fulcrum as shown in FIG. 3, and the substantially L-shaped latch at the upper end is moved to the rack 1.
Engage in groove 1. Therefore, the car door can no longer be pry open.
【００２２】上記のような構成であれば、かご扉に開方
向の外力が加わったとしても、止め金２９の上端の掛け
金がラックの溝に掛かって、機械的にかご扉をロックす
るので、かご内の乗客等によって悪戯でかご扉をこじ開
けることを防止できる。With the above construction, even if an external force in the opening direction is applied to the car door, the latch at the upper end of the stopper plate 29 engages with the groove of the rack to mechanically lock the car door. It is possible to prevent prying open the car door by passengers in the car.
【００２３】実施例２．図４は、本発明に係る第２実施
例のエレベータかご扉こじ開け防止装置の部分拡大図で
ある。また、図５は、本発明に係る第２実施例のエレベ
ータかご扉こじ開け防止装置の動作を説明する図であ
る。尚、先に述べたエレベータのかご扉開閉機構、及び
実施例１と同様の構成要素には同一の符号を付しその説
明を省略する。Example 2. FIG. 4 is a partially enlarged view of the elevator car door prying open preventing device according to the second embodiment of the present invention. FIG. 5 is a diagram for explaining the operation of the elevator car door prying open prevention device according to the second embodiment of the present invention. The same components as those of the elevator car door opening / closing mechanism and the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.
【００２４】上述の実施例１の構成の場合、長年の使用
により引きバネ１５の弾性が劣化して引きバネ１５の引
く力が弱くなると、連動ロープ８の矢印Ａ方向に引く力
と引きバネ１５の戸閉め方向に引く力とが不釣り合いに
なり、通常の戸閉め動作時に図３のような状態になるお
それがある。これでは、戸閉め中に掛け金がラック１１
の溝に掛り戸閉め動作がスムーズに行えなくなる可能性
がある。In the case of the structure of the first embodiment described above, when the elasticity of the pulling spring 15 deteriorates due to long-term use and the pulling force of the pulling spring 15 becomes weak, the pulling force of the interlocking rope 8 in the direction of arrow A and the pulling spring 15 are reduced. The force of pulling in the door closing direction becomes unbalanced, and there is a possibility that the state shown in FIG. With this, the latch is rack 11 while the door is closed.
There is a possibility that it will not be able to perform the door closing operation smoothly because it is caught in the groove.
【００２５】そこで、本実施例では、止め金に掛け金が
回動可能に取り付け、更に掛け金と止め金とを引きバネ
によって連結して掛け金の回転を規制することにより、
引きバネ１５の弾性が劣化しても戸閉め動作に支障をき
たさない装置を提供することができる。Therefore, in this embodiment, the latch is rotatably attached to the stopper, and the latch and the stopper are connected by a pulling spring to restrict the rotation of the latch.
It is possible to provide a device that does not hinder the door closing operation even if the elasticity of the pulling spring 15 deteriorates.
【００２６】すなわち、図４に示すように、止め金３９
には、支点軸１７を支点として掛け金１６が回転可能に
取り付けられている。また、止め金３９には、掛け金１
６の回転を規制するストッパ１８が取り付けられ、掛け
金１６の下端と止め金３９とは、引きバネ１９によって
連結され掛け金の回転がある程度規制されていている。
従って、引きバネ１５の弾性が劣化して、掛け金１６
がラック１１の溝に当たったとしても、すぐに引きバネ
１９によって掛け金１６は引き戻され、戸閉め動作を阻
害することない。That is, as shown in FIG.
A latch 16 is rotatably attached to the shaft 16 about a fulcrum shaft 17. In addition, the stopper 39 has a latch 1
A stopper 18 for restricting the rotation of 6 is attached, and the lower end of the latch 16 and the stopper 39 are connected by a pulling spring 19 to regulate the rotation of the latch to some extent.
Therefore, the elasticity of the pulling spring 15 deteriorates and the latch 16
Even if the wheel hits the groove of the rack 11, the latch 16 is immediately pulled back by the pulling spring 19 and does not hinder the door closing operation.
【００２７】また、かご扉をこじ開ける外力が加わった
場合には、実施例１と同様、止め金３９が、図５に示す
ように支点軸１３を支点として回転して、掛け金１６
は、引きバネ１９とストッパ１８に回転をある程度規制
されながら支点軸１７を支点に回転して、ラック１１の
溝に噛み合う。このため、これ以上かご扉がこじ開けら
れることがない。When an external force for prying open the car door is applied, the stopper plate 39 rotates about the fulcrum shaft 13 as a fulcrum as shown in FIG.
Rotates about the fulcrum shaft 17 while being regulated to some extent by the pulling spring 19 and the stopper 18, and engages with the groove of the rack 11. Therefore, the car door can no longer be pry open.
【００２８】上記のような構成であれば、かご扉１に開
方向の外力が加わったとしても、止め金３９の掛け金１
６がラック１１の溝に掛かって、機械的にかご扉１をロ
ックするので、かご内の乗客等によって悪戯でかご扉１
をこじ開けることを防止できる。With the above-mentioned structure, even if an external force in the opening direction is applied to the car door 1, the latch 1 of the stopper 39 is attached.
6 engages with the groove of the rack 11 and mechanically locks the car door 1, so that the car door 1 can be mischievous by passengers in the car.
It is possible to prevent prying open.
【００２９】実施例３．図６は、本発明に係る第３実施
例のエレベータかご扉こじ開け防止装置の全体構成を示
す図である。また、図７は、図６に示すエレベータかご
扉こじ開け防止装置の部分拡大図である。図８は、本発
明に係る第３実施例のエレベータかご扉こじ開け防止装
置の動作を説明する図である。尚、先に述べたエレベー
タのかご扉開閉機構、及び実施例１、２と同様の構成要
素には同一の符号を付しその説明を省略する。Example 3. FIG. 6 is a diagram showing an overall configuration of an elevator car door prying open prevention device according to a third embodiment of the present invention. 7 is a partially enlarged view of the elevator car door prying open prevention device shown in FIG. 6. FIG. 8: is a figure explaining operation | movement of the elevator car door prying open prevention apparatus of 3rd Example which concerns on this invention. The same components as those of the elevator car door opening / closing mechanism and the first and second embodiments described above are designated by the same reference numerals, and the description thereof will be omitted.
【００３０】図６及び図７に示すように、本実施例のエ
レベータかご扉こじ開け防止装置は、以下のように構成
されている。吊り手２には、止め金４９が取り付けら
れ、連動ロープ８の一端は、止め金４９を貫通して座金
２１にダブルナット２２によって連結されている。ま
た、止め金４９の上端には、支点軸１７を支点として回
転可能に掛け金２３が取り付けられ、掛け金２３は座金
２１に常時当接している。また、座金２１と止め金４９
とは、押しバネ２０によって連結されている。通常押し
バネ２０は、図７に示すようにＬ1 の長さであるが、か
ご扉１に開方向の外力が加わると、図８に示すように押
しバネ２０の長さはＬ2 に縮まる。As shown in FIGS. 6 and 7, the elevator car door prying open preventing device of this embodiment is constructed as follows. A stopper 49 is attached to the hanging hand 2, and one end of the interlocking rope 8 penetrates the stopper 49 and is connected to the washer 21 by a double nut 22. Further, a latch 23 is attached to the upper end of the stopper 49 so as to be rotatable around the fulcrum shaft 17 as a fulcrum, and the latch 23 is always in contact with the washer 21. Also, the washer 21 and the stopper 49
And are connected by a push spring 20. Normally, the push spring 20 has a length of L 1 as shown in FIG. 7, but when an external force in the opening direction is applied to the car door 1, the length of the push spring 20 shrinks to L 2 as shown in FIG. .
【００３１】次に動作について、図６〜図８を用いて説
明する。Next, the operation will be described with reference to FIGS.
【００３２】通常の開閉動作において、押しバネ２０の
長さは、Ｌ1 で常に一定である。従って、掛け金２３は
座金２１に押し上げられることがないので、ラック１１
の溝に噛み合わず、通常の開閉動作がスムースに行われ
る。一方、全閉付近において、かご扉１に開方向の外力
が加わると、連動ロープ８により座金２１は戸閉め方向
に引っ張られるが、止め金４９はかご扉の動きに合わせ
て戸開き方向に移動する。従って、押しバネ２０の長さ
がＬ2 に縮まる。この時、座金２１は止め金４９に接近
し、掛け金２３は座金２１にとって押し上げられ、掛け
金２３の先端がラック１１と噛み合って、これ以上かご
扉がこじ開けられることがない。In a normal opening / closing operation, the length of the push spring 20 is L 1 and is always constant. Therefore, since the latch 23 is not pushed up by the washer 21, the rack 11
The normal opening / closing operation is smoothly performed without engaging with the groove. On the other hand, when an external force in the opening direction is applied to the car door 1 near the fully closed position, the washer 21 is pulled in the door closing direction by the interlocking rope 8, but the stopper plate 49 moves in the door opening direction according to the movement of the car door. To do. Therefore, the length of the push spring 20 is reduced to L 2 . At this time, the washer 21 approaches the stopper 49, the latch 23 is pushed up by the washer 21, the tip of the latch 23 meshes with the rack 11, and the car door cannot be opened any further.
【００３３】上記のような構成であれば、かご扉１に開
方向の外力が加わったとしても、止め金４９の掛け金２
３がラック１１の溝に掛かって、機械的にかご扉１をロ
ックするので、かご内の乗客等によって悪戯でかご扉を
こじ開けることを防止できる。With the above structure, even if an external force in the opening direction is applied to the car door 1, the latch 2 of the stopper 49 is provided.
3 hooks in the groove of the rack 11 and mechanically locks the car door 1. Therefore, it is possible to prevent the car door 1 from being prankly opened by passengers in the car.
【００３４】[0034]
【発明の効果】以上のように、本発明に係るエレベータ
かご扉こじ開け防止装置によれば、連動ロープによって
かご扉が戸閉めされている際又は戸閉めされた後に、か
ご扉がこじ開けられると、連動ロープの一端に連結され
た止め金の上部は戸閉め方向に引っ張られ、一方吊り手
に連結された止め金の下部は戸開き方向に引っ張られ
る。従って、支点軸を支点として止め金が回転し、止め
金の上端に取り付けられた掛け金が、かごに取り付けら
れたラックの溝に噛み合い、更にストッパにより止め金
の回転が阻止され、それ以上かご扉は開かなくなる。一
方、止め金の下端には、連動ロープによってかご扉を閉
方向に引く力と釣り合いをとるためにかご扉閉方向に止
め金を引っ張る引きバネが設けられているので、連動ロ
ープによってかご扉が戸閉め方向に引っ張られている際
に、止め金が回転して掛け金がラックの溝に噛み合わな
いように、止め金の回転を規制している。As described above, according to the elevator car door prying open prevention device of the present invention, when the car door is prying open when the car door is closed by the interlocking rope or after the closing, The upper part of the stopper plate connected to one end of the interlocking rope is pulled in the door closing direction, while the lower part of the stopper plate connected to the sling is pulled in the door opening direction. Therefore, the stopper plate rotates around the fulcrum shaft as a fulcrum, the latch attached to the upper end of the stopper plate meshes with the groove of the rack attached to the car, and the stopper prevents the stopper plate from rotating further. Will not open. On the other hand, at the lower end of the stopper plate, there is a pulling spring that pulls the stopper plate in the car door closing direction to balance the force of pulling the car door in the closing direction by the interlocking rope. The rotation of the stopper plate is regulated so that the stopper plate does not rotate and the latch plate does not engage with the rack groove when being pulled in the door closing direction.
【００３５】上述の止め金を長時間使用すると、止め金
の下端の引きバネの引く力が弱くなり、連動ロープによ
ってかご扉を閉方向に引く力と不釣り合いとなって、掛
け金がラックの当たり戸閉め動作を阻止する可能性があ
る。しかし、本発明によれば、止め金が、更にその上端
に他の支点軸を支点として回転可能に取り付けられた掛
け金と、掛け金がランクの溝に噛み合った際に掛け金の
回転を止める他のストッパと、掛け金の下端と止め金と
を連結し掛け金の回転を規制する他の引きバネと、を有
するので、連動ロープによる戸閉め方向の引かれた際
に、掛け金の回転が他の引きバネによって規制される。
従って、スムースに戸閉め動作を行える。When the above stopper plate is used for a long time, the pulling force of the pulling spring at the lower end of the stopper plate becomes weak, and the interlocking rope disproportionately pulls the car door in the closing direction, so that the latch plate hits the rack. It may prevent the door from closing. However, according to the present invention, the latch has a latch further attached to the upper end of the latch so as to be rotatable around another fulcrum shaft as a fulcrum, and another stopper that stops the rotation of the latch when the latch engages with the groove of the rank. And another pulling spring that connects the lower end of the latch to the stopper and regulates the rotation of the latch , so that when the interlocking rope is pulled in the door closing direction, the rotation of the latch is changed by the other pulling spring. Regulated.
Therefore, the door closing operation can be smoothly performed.
【００３６】また、連動ロープによってかご扉が戸閉め
されている際又は戸閉めされた後に、かご扉がこじ開け
られると、連動ロープの一端に連結された座金は戸閉め
方向に引っ張られ、一方吊り手に連結された止め金は戸
開き方向に引っ張られる。従って、座金と止め金とを連
結する押しバネが縮められ、座金が止め金に近付く。こ
のため、座金によって掛け金が押し上げられ、掛け金の
先端がラックの溝に噛み合い、かご扉のこじ開けが阻止
される。一方、通常のかご扉の戸閉じ動作中には、押し
バネによって座金と止め金との間は一定間隔に保たれる
ため、座金が掛け金を押し上げることはない。従って、
スムースに戸閉め動作を行うことができる。When the car door is closed by the interlocking rope or after the car door is closed, the washer connected to one end of the interlocking rope is pulled in the door closing direction and hung on the other hand. The clasp connected to the hand is pulled in the door opening direction. Therefore, the push spring that connects the washer and the stopper is contracted, and the washer approaches the stopper. Therefore, the washer is pushed up by the washer, the tip of the washer meshes with the groove of the rack, and the prying open of the car door is prevented. On the other hand, during the normal door closing operation of the car door, the washer does not push up the latch because the push spring keeps the washer and the stopper at a constant interval. Therefore,
The door can be closed smoothly.
【００３７】以上より、かご扉が全閉中にかご扉に開方
向の外力を加えても、例えばかご内の乗客がいたずらで
戸開き方向にこじ開けようとしても、止め金の掛け金が
ラックの溝に噛み合うため、それ以上のかご扉のこじ開
けを防止できる。また、戸閉め電動機による閉方向のト
ルクが発生した場合に、このトルク以上の外力が加わっ
たとしても、やはり止め金の掛け金がラックの溝に噛み
合い、かご扉をロックするので、かご扉はそれ以上こじ
開けられることはない。従って、外力によるかご扉のこ
じ開けを防止するので、原因を特定できない故障発報の
発報数が減少し、エレベータの管理を円滑に行える。From the above, even if an external force in the opening direction is applied to the car door while the car door is fully closed, for example, even if a passenger in the car tries to pry open in the door opening direction by mischief, the latch of the stopper plate is the groove of the rack. Since it meshes with, it can prevent further prying of the car door. In addition, even if an external force exceeding this torque is applied when a torque is generated in the closing direction by the door closing motor, the latch of the stopper meshes with the groove of the rack and locks the car door. No more prying open. Therefore, the prying open of the car door by the external force is prevented, so that the number of failure notifications whose cause cannot be specified is reduced and the elevator can be managed smoothly.
【図１】 本発明に係る第１実施例のエレベータかご扉
こじ開け防止装置の全体構成を示す図である。FIG. 1 is a diagram showing an overall configuration of an elevator car door prying open prevention device according to a first embodiment of the present invention.
【図２】 図１に示すエレベータかご扉こじ開け防止装
置の部分拡大図である。FIG. 2 is a partially enlarged view of the elevator car door prying open prevention device shown in FIG. 1.
【図３】 本発明に係る第１実施例のエレベータかご扉
こじ開け防止装置の動作を説明する図である。FIG. 3 is a view for explaining the operation of the elevator car door prying open prevention device of the first embodiment according to the present invention.
【図４】 本発明に係る第２実施例のエレベータかご扉
こじ開け防止装置の部分拡大図である。FIG. 4 is a partially enlarged view of the elevator car door prying open prevention device according to the second embodiment of the present invention.
【図５】 本発明に係る第２実施例のエレベータかご扉
こじ開け防止装置の動作を説明する図である。FIG. 5 is a view for explaining the operation of the elevator car door prying open prevention device of the second embodiment according to the present invention.
【図６】 本発明に係る第３実施例のエレベータかご扉
こじ開け防止装置の全体構成を示す図である。FIG. 6 is a diagram showing the overall configuration of an elevator car door prying open prevention device according to a third embodiment of the present invention.
【図７】 図６に示すエレベータかご扉こじ開け防止装
置の部分拡大図である。7 is a partially enlarged view of the elevator car door prying open prevention device shown in FIG. 6. FIG.
【図８】 本発明に係る第３実施例のエレベータかご扉
こじ開け防止装置の動作を説明する図である。FIG. 8 is a view for explaining the operation of the elevator car door prying open prevention device of the third embodiment according to the present invention.
【図９】 従来のエレベータのかごの開閉機構の一例を
示す図である。FIG. 9 is a diagram showing an example of a conventional elevator car opening / closing mechanism.
１ かご扉、２ 吊り手、３ 吊りレール、４ 吊りロ
ーラ、５ 戸閉め電動機、６ 滑車、７ ベルト、８
連動ロープ、１０ スイッチ、１１ ラック、１２ ボ
ルト、１３ 支点軸、１４ ストッパ、１５ 引きバ
ネ、２９ 止め金。1 car door, 2 hangers, 3 hang rails, 4 hang rollers, 5 door closing motors, 6 pulleys, 7 belts, 8
Interlocking rope, 10 switches, 11 racks, 12 bolts, 13 fulcrum shafts, 14 stoppers, 15 tension springs, 29 clasps.
Claims (3)
かご扉の上部に取り付けられた吊り手の左右にその先端
が連結される連動ロープを有し、滑車の回転によってか
ご扉を開閉するエレベータかごにおいて、 前記連動ロープの一端と連結され支点軸を支点として前
記吊り手に回転可能に取り付けられ上端には掛け金を有
する止め金と、 かごに取り付けられ前記止め金の掛け金と噛み合う溝を
有するラックと、 前記吊り手に取り付けられ前記止め金の掛け金が前記ラ
ックの溝に噛み合った際に前記止め金の回転を規制する
ストッパと、 前記止め金の下端と前記吊り手とを連結しかご扉閉方向
に前記止め金を引っ張る引きバネと、 を有することを特徴とするエレベータかご扉こじ開け防
止装置。1. Through pulleys provided on the left and right of the car,
In an elevator car that has interlocking ropes whose ends are connected to the left and right of the hanging hand attached to the top of the car door, and that opens and closes the car door by the rotation of the pulley, is connected to one end of the interlocking rope and a fulcrum shaft is used as a fulcrum As a lock rotatably attached to the hanger and having a latch at the upper end, a rack having a groove that is attached to the car and meshes with the latch of the latch, and a latch of the latch attached to the hanger is A stopper for restricting rotation of the stopper plate when engaged with the groove of the rack, and a pulling spring for connecting the lower end of the stopper plate and the hanging hand to pull the stopper plate in the car door closing direction. Elevator car door prying open prevention device.
開け防止装置において、前記掛け金は、前記止め金の上端に他の支点軸を支点と
して回転可能に取り付けられ、 更に、 前記止め金は、前記掛け金が前記ラックの溝に噛
み合った際に掛け金の回転を止める他のストッパと、前
記掛け金の下端と前記止め金とを連結し前記掛け金の回
転を規制する他の引きバネと、を有することを特徴とす
るエレベータかご扉こじ開け防止装置。2. The elevator car door prying open prevention device according to claim 1, wherein the latch has another fulcrum shaft as a fulcrum at an upper end of the stopper plate.
Rotatably mounted, and further, the stopper plate, and the other stopper for stopping the rotation of the latch when the previous SL latch are engaged in the groove of the rack, and the lower end of the front <br/> SL latch elevator car door prying preventing apparatus characterized by having, as other tension spring which regulates the times <br/> rotation of the latch connecting the said stopper plate.
かご扉の上部に取り付けられた吊り手の左右にその先端
が連結される連動ロープを有し、滑車の回転によってか
ご扉を開閉するエレベータかごにおいて、 前記吊り手に固定され前記連動ロープの一端が貫通した
止め金と、 前記止め金の上端に支点軸を支点として回転可能に取り
付けられた掛け金と、 前記掛け金に常時当接し前記止め金を貫通した前記連動
ロープの一端が連結される座金と、 前記座金と止め金とを連結する押しバネと、 かごに取り付けられ前記掛け金と噛み合う溝を有するラ
ックと、 を有することを特徴とするエレベータかご扉こじ開け防
止装置。3. Through pulleys provided on the left and right of the car,
In an elevator car that has interlocking ropes whose ends are connected to the left and right of the hanging hand attached to the top of the car door, and that opens and closes the car door by the rotation of the pulley, one end of the interlocking rope fixed to the hanging hand is A stopper that penetrates, a latch that is rotatably attached to the upper end of the stopper with a fulcrum shaft as a fulcrum, and a washer to which one end of the interlocking rope that constantly abuts the latch and penetrates the stopper is connected. An elevator car door prying prevention device, comprising: a push spring that connects the washer and the stopper plate; and a rack that is attached to the car and that has a groove that meshes with the latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02981295A JP3364351B2 (en) | 1995-02-17 | 1995-02-17 | Elevator car door pry open prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02981295A JP3364351B2 (en) | 1995-02-17 | 1995-02-17 | Elevator car door pry open prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08225278A JPH08225278A (en) | 1996-09-03 |
| JP3364351B2 true JP3364351B2 (en) | 2003-01-08 |
Family
ID=12286440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02981295A Expired - Fee Related JP3364351B2 (en) | 1995-02-17 | 1995-02-17 | Elevator car door pry open prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3364351B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693539B (en) * | 2012-09-27 | 2015-11-18 | 日立电梯（中国）有限公司 | Double-vane layer door opening protecting apparatus |
| CN108455402A (en) * | 2018-04-08 | 2018-08-28 | 林肯电梯(中国)有限公司 | Car door emergency unlocking device |
| CN108341315A (en) * | 2018-04-08 | 2018-07-31 | 林肯电梯(中国)有限公司 | Car door rescues unlocking apparatus |
| CN110482368A (en) * | 2019-09-03 | 2019-11-22 | 香花岭锡业有限责任公司 | A kind of protective device for steel wire rope of hoist fracture |
| CN112340562B (en) * | 2020-11-24 | 2022-05-03 | 日立电梯（中国）有限公司 | Tool and method for adjusting landing door lock in car |
| CN114291707B (en) * | 2022-01-18 | 2024-06-25 | 浙江西沃电梯有限公司 | Elevator car door lock device and control method thereof |
-
1995
- 1995-02-17 JP JP02981295A patent/JP3364351B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08225278A (en) | 1996-09-03 |
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