B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
B66B 7/06 (2006.01)
Patent
CA 2508686
An elevator installation includes an elevator car located in a hoistway and having a floor, and a rear wall extending upward from the floor. A counterweight is located in the hoistway adjacent to the rear wall of the elevator car. An underslung sheave assembly is located generally below the floor and preferably forms a V-shaped configuration that operatively engages the elevator car. A drive machine is mounted in the upper portion of the hoistway, and a drive sheave operatively engages the drive machine and is located above the counterweight, with the drive sheave having a front edge. A deflector sheave is also mounted in the upper part of the hoistway generally below the drive sheave and has a rear edge that vertically overlaps with the front edge of the drive sheave. A first rope and a second rope each have a first end attached to one of a first and a second dead end hitch in the upper portion of the hoistway, with the underslung sheave assembly operatively engaging the first and second ropes to support the elevator car and the counterweight operatively engaging the first and second ropes as the first and second ropes extend from the drive sheave to the counterweight, and with the first and second ropes extending from the underslung sheave assembly around the rear edge of the deflector sheave and the front edge of the drive sheave such that the first and second ropes wrap around the drive sheave greater than 180 degrees.
Ag Inventio
Riches Mckenzie & Herbert Llp
LandOfFree
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