Elevator drive machine placed in the counterweight

Details Elevator drive machine placed in the counterweight Elevator drive machine placed in the counterweight

1994-06-23

1996-11-12

Noland, Kenneth

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes linking support cable in drive-means

187404, B66B 1104

Patent

active

055730841

ABSTRACT:
A rotating elevator motor provided with a traction sheave is placed in the counterweight of an elevator suspended from ropes. The sector-shaped stator of the motor has a diameter (2*Rs) larger than that (2*Rv) of the traction sheave and the elevator ropes are passed through the open part or parts of the stator. This structure allows the use of traction sheaves of dif ferent diameters with rotors of the same diameter. Still, the length of the motor remains small and the motor/counterweight of the invention can be accommodated in the space normally reserved for a counterweight in an elevator shaft. The motor shaft is placed in the counterweight substantially midway between the guide rails and the same number of ropes are placed on both sides of the rotor.

REFERENCES:
patent: 3101130 (1963-08-01), Bianca
patent: 4771197 (1988-09-01), Ivanto et al.
patent: 4960186 (1990-10-01), Honda
patent: 5018603 (1991-05-01), Ito
patent: 5062501 (1991-11-01), Pavoz et al.

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