Elevator – industrial lift truck – or stationary lift for vehicle – Having specific load support drive-means or its control – Includes control for power source of drive-means
Patent
1993-08-27
1994-11-29
Gastineau, Cheryl L.
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific load support drive-means or its control
Includes control for power source of drive-means
187303, B66B 516
Patent
active
053681312
ABSTRACT:
A powerless emergency elevator includes guide rails (2) erected vertically; an elevator car (6) supported by a flexible rope (4) so as to be movable along the guide rails; a lock mechanism (7) provided on a top of the elevator car and biased in a locking direction for locking the elevator car to the guide rails; a power transmission path (9) extends upwardly from a floor plate (8) of the elevator car to the lock mechanism; a clutch mechanism (10) provided between the lock mechanism and the power transmission path for connecting or disconnecting the lock mechanism to the power transmission path; an auxiliary lock mechanism (11) provided on a side wall of the elevator car for releasing the clutch mechanism at evacuation and exit floors to thereby cut off the power transmission path; a handle (12) provided within the elevator car; a lock releasing mechanism (13) provided in the power transmission path for releasing the lock mechanism via the power transmission path by manipulating the handle; a lock releasing mechanism (15) interlocked to a door ( 14) of the elevator car and responsive to only a closing movement of the door to release the lock mechanism via the power transmission path; an engaging mechanism (16) responsive to opening and closing movements of the door and a weight of a passenger to connect or disconnect the interlocking mechanism via the power transmission path; and a lifting/speed control unit (17) for moving upwardly the elevator car via the flexible rope and controlling a descending speed of the elevator car.
REFERENCES:
patent: 470960 (1892-03-01), Tracy
patent: 606489 (1898-06-01), Paroselli
patent: 735093 (1903-08-01), Greenwald
patent: 837961 (1906-12-01), Price
patent: 944076 (1909-12-01), Dansey
patent: 953297 (1910-03-01), Sautter
patent: 958580 (1910-05-01), Baumer
patent: 1107191 (1914-08-01), Balliet
patent: 3200905 (1965-08-01), Holderidge
patent: 3332516 (1967-07-01), Reinke
patent: 4650036 (1987-03-01), Matsuda
Gastineau Cheryl L.
Reichard Dean A.
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