Patent ID: 9656835
Date: 2017-05-23
CPC Classifications: B66B

Claim:
1. An elevator car door locking apparatus comprising: a locking apparatus that locks a car door in a closed position; a linking mechanism that includes links that are disposed on the car door so as to be pivotable around pivoting shafts; a doorstop-side blade that is disposed on the car door by means of the linking mechanism, and that is displaceable horizontally between a locked position, and an unlocked position that is further away from a door pocket than the locked position; a transmission mechanism that mechanically transmits displacement of the doorstop-side blade toward the unlocked position to the locking apparatus to place the locking apparatus in an unlocked state; and a balance weight that is disposed on an opposite side of the pivoting shaft of the link from the doorstop-side blade, wherein the elevator car door locking apparatus is configured such that the doorstop-side blade comes into contact with a landing door engaging member that is disposed on a landing door and displaces to the unlocked position, and the balance weight also displaces away from the doorstop-side blade, due to the car door moving toward the door pocket side when a car is in position at a floor.