Winch for elevator

Details Winch for elevator Winch for elevator

1986-03-19

1987-08-25

Skaggs, H. Grant

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

188171, 184 612, B66B 1104

Patent

active

046886605

ABSTRACT:
A winch for an elevator which is provided with a drive pulley rotated through a reduction gear by a motor and a brake unit provided between the motor and the reduction gear, makes it possible to produce the brake unit with a compact frame, light weight and low cost by fixing the frame of the brake unit to a casing of the reduction gear with bolts. Further, it can be assembled. easily for a short period of time. An annular oil keep groove is provided on the casing of the reduction gear. An annular oil interrupting projection disposed in the oil keep groove is provided on a hollow rotary shaft fixed the drive pulley. Therefore, lubricant is securely prevented from leakage from the inside of the casing for a long period of time.

REFERENCES:
patent: 1060384 (1913-04-01), Valentine
patent: 2263092 (1941-11-01), Johnson
patent: 2699841 (1955-01-01), Gunderson
patent: 2732041 (1956-01-01), Anderson
patent: 3805919 (1974-04-01), Nakamura et al.
patent: 3827311 (1974-08-01), Pere
patent: 4422531 (1983-12-01), Ohtumi et al.
patent: 4526252 (1985-07-01), Hirano

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