PROBLEM TO BE SOLVED: To provide a landing door lock releasing structure capable of preventing a maintenance operator or the like from falling to a hoistway by the manual opening operation of a landing door.SOLUTION: A landing door lock releasing structure 50 is provided with: a hanger 1 that has a roller hanger 11 from which a landing door 10 is hung and which moves on a door rail 20; a latching member 2 that moves a locking member 21 of a lock mechanism 30 to a lock releasing position by being moved by means of a force from a landing unlocking rod inserted into a through-hole 18; a wire 3 that is attached at one end to the latching member 2; and a wedge 5 that is attached to the other end of the wire 3, and held between the hanger roller 11 and the door rail 20 to stop the hanger roller 11 with respect to the door rail 20 by means of a friction force before the landing door 10 is fully opened when the landing door 10 moves from a full-closing position to an opening side in the released state of the lock mechanism 30.SELECTED DRAWING: Figure 1
【課題】乗場扉の手動での開き動作で、保守作業員等が昇降路に転落することを防止できる乗場扉錠解除構造を提供すること。【解決手段】乗場扉錠解除構造50が、乗場扉10を吊り下げると共にドアレール20上を移動するハンガーローラ11を有するハンガー1と、貫通孔18に挿入される乗場錠外し棒からの力で移動することによってロック機構30の係止部材21をロックが解除される位置まで移動させる掛け金部材2と、掛け金部材2に一端部が取り付けられたワイヤー3と、ワイヤー3の他端部に取り付けられると共に、ロック機構30が解除状態になっているときに乗場扉10が全閉位置から開く側に移動すると、乗場扉10が全開になる前にハンガーローラ11とドアレール20とで挟持されて、ハンガーローラ11をドアレール20に対して摩擦力で静止させる楔5と、を備えるようにする。【選択図】図1
LANDING DOOR LOCK RELEASING STRUCTURE
乗場扉錠解除構造
2018-04-05
Patent
Electronic Resource
Japanese
IPC: | B66B Aufzüge , ELEVATORS |
Mechanical self-locking type landing door lock structure and landing door
European Patent Office | 2024
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