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US 11,691,847 B2Granted
Elevator travel blocking apparatus
AssigneeTK Elevator Corporation
InventorsRussell Duke, Alan Parker, Malcom Ray Nooner
Life of this patent
Estimating the term…
Abstract
A travel blocking apparatus for blocking the movement of a car movably disposed in a hoistway. The travel blocking apparatus includes a flapper mechanism attached to the car and configured, when deployed, to extend an arm outside of an outer side periphery of the car and a prop device disposed in the hoistway and configured to contact the arm when said arm is extended so as to stop the car from moving downwardly in the hoistway.
Claims18
A travel blocking apparatus for blocking the movement of a car movably disposed in a hoistway, the travel blocking apparatus comprising:
- a flapper mechanism attached to the car and configured, when deployed, to extend an arm outside of an outer side periphery of the car;
- a prop device disposed in the hoistway and configured to contact the arm when said arm is extended so as to stop the car from moving downwardly in the hoistway;
- a cable attached to the arm, which, when tensioned, is configured to move the arm into a deployed state;
- and
- a handle attached to the cable and disposed at least one of underneath or adjacent the car, and configured to permit a user to access the handle from a position outside the hoistway and tension the cable when the handle is pulled by the user.
2 more elements
An elevator system, comprising:
- a hoistway;
- an elevator car configured to move vertically within the hoistway;
- a flapper mechanism attached to the elevator car and configured, when deployed, to extend an arm outside of an outer side periphery of the car;
- a prop device disposed in the hoistway and configured to contact the arm when said arm is extended so as to stop the car from moving downwardly in the hoistway;
- a cable attached to the arm, which, when tensioned, is configured to move the arm into a deployed state;
- and
- a handle attached to the cable and disposed at least one of underneath or adjacent the car, and configured to permit a user to access the handle from a position outside the hoistway and tension the cable when the handle is pulled by the user,
- wherein the flapper mechanism and the prop device are disposed so as to maintain a refuge area within the hoistway underneath the elevator car.
5 more elements
Dependencies are inferred from the claim text.