Door engagement device for elevator

摘要

A door engagement device for an elevator according to the present invention is configured in such a manner that biasing-force applying/changing means applies a turning preventing force for preventing turning of a lever main body and changes a direction of a biasing force to a direction of an anti-turning preventing force to the lever main body by action of turning guiding means with movement of a car door. Accordingly, an engagement-mechanism driving device can be driven with a reduced space at low cost.

主权项

1. A door engagement device for an elevator, provided between a car door guided on a hanger rail of a door device main body to perform an opening/closing operation and a landing door for performing an opening/closing operation for a landing doorway, for opening/closing the landing door in association with the opening/closing operation of the car door, the door engagement device comprising:
a car-side engagement mechanism for gripping a landing-side engagement mechanism provided to the landing door when the car door is opened/closed; and an engagement-mechanism driving device for driving the car-side engagement mechanism, wherein the engagement-mechanism driving device comprises:
a lever support shaft provided to the car door;a lever main body provided turnably in a reciprocating manner between a start point and an end point about the lever support shaft;turning guiding means for guiding turning of the lever main body in a rotational direction about the lever support shaft; andbiasing-force applying/changing means provided to the car door for applying a rotational biasing force to the lever main body, the biasing force comprising a turning preventing force for preventing the turning of the lever main body in the rotational direction, and for changing a direction of the biasing force with movement of the car door such that the biasing force comprises an anti-turning preventing force for assisting the turning of the lever main body in the rotational direction when a force direction of the biasing-force applying/changing means crosses the lever support shaft.