Elevator hoistway door bolt lock

摘要

An elevator hoistway door lock comprises a rod journaled for rotation on a hoistway door. A pin which extends laterally from the rod engages a lip when the rod is rotated into a locked position by means of its own weight, and optionally a spring. The pin clears the lip when the rod is rotated into an unlocked position by means of a retiring cam disposed on the elevator car. The electrical safety switch contacts are interconnected by a rotating contact disposed on the rod, only when the rod is rotated to place the pin in the locked position.