Emergency unlocking device at shaft doors of elevators
AssigneeInventio AG
InventorErnst Studhalter
Life of this patent
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Abstract
An emergency unlocking device includes an unlocking lever actuated by an unlocking slide that is guided in a guide fastened to the inner side of the shaft door. The guide covers a passage that is formed in the shaft door for insertion of a tool for actuation of the unlocking slide so that in the case of a fire the flame cannot pass through the passage to the elevator shaft.
Claims12
An emergency unlocking device for a shaft door of an elevator, the shaft door having a locking lever rotatably mounted thereon and movable with the shaft door, the locking lever acting on an emergency actuating element, comprising:
- a guide fixedly connected with an inner side of a shaft door and guiding an emergency actuating element to be linearly displaceable;
- a passage formed through the shaft door and aligned with a passage formed in said guide and with an opening formed in the emergency actuating element;
- and
- a tool having an end insertable through said passages and into said opening for displacing the emergency actuating element from a shaft door locked position to a shaft door unlocked position.
An emergency unlocking device for a shaft door of an elevator comprising:
- a guide fixedly connected with an inner side of an elevator shaft door;
- an emergency actuating element guided by said guide for movement relative to the door and having a first passage formed therein;
- a second passage formed through the shaft door between an outer side of the shaft door and the inner side, said second passage being aligned with said first passage and with an opening formed in said emergency actuating element;
- and
- a tool having an end insertable through said first and second passages and into said opening for displacing said emergency actuating element from a shaft door locked position to a shaft door unlocked position.
Dependencies are inferred from the claim text.