The present invention relates to a landing door locking apparatus for an elevator. According to the present invention, when a cage stops at a preset layer, a contact pressing member and a horizontal elastic moving member of a landing door locking maintaining/releasing means arranged on an upper rail of a landing door move forward for a gap between an upper and lower pieces and a vertical contact piece arranged on the upper rail of the cage door. Then, a horizontal finish piece of an unlocking material moves forward to be apart from the front surface of the upper rail. The locking is released and the landing door can be opened. After the locking is released, if the landing floor of the cage is set, the cage rises, and if the vertical contact piece moves along the outer circumferential surface of a rotation contact roller and a lower inclined piece is located at the rotation contact roller, the contact pressing member and the horizontal elastic moving member return backward by the restoration force of the compressed support spring. Then, the horizontal finish piece moves backward and comes in close contact with the front surface of the upper rail, so the elevator rises and falls while the locking is maintained. Therefore, a worker cannot forcibly open the landing door from the outside, so that an accident (such as a fall) can be prevented.

    본 발명은 리프트용 랜딩도어 록킹장치에 관한 것이다. 본 발명에 따르면 설정된 층에 케이지의 정지시, 케이지도어의 상부레일에 구비된 상,하부경편 및 수직밀착편 간격 차이만큼, 랜딩도어의 상부레일에 구비된 랜딩도어 록킹 유지 및 해제수단의 밀착누름부재 및 수평탄성이동부재가, 전방으로 이동하게 되고 언록킹재의 수평마감편이 전방으로 이동하여 상부레일 전면으로부터 이격되어 록킹상태가 해제됨에 따라 랜딩도어를 개방할 수 있으며, 록킹 해제후, 케이지의 하차 층을 설정하면 케이지가 상승하여 수직밀착편이, 회전밀착롤러의 외주면을, 타고 하부경사편이 회전밀착롤러에 위치되면, 압축된 지지스프링의 복원력으로서 밀착누름부재 및 수평탄성이동부재가, 후방으로 복귀하게 되고, 수평마감편이 후방으로 이동하여 상부레일 전면에 밀착됨에 따라 록킹상태가 유지된 상태에서 승하강하게 되어 외부에서 작업자가 강제로 랜딩도어를 개방할 수 없어 안전사고(추락사고)가 방지되는 효과가 제공된다.


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    Title :

    Landing door locking device for lift


    Additional title:

    리프트용 랜딩도어 록킹장치


    Contributors:

    Publication date :

    2023-07-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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