B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
B66B 9/02 (2006.01) B66B 1/14 (2006.01) B66B 11/08 (2006.01)
Patent
CA 2202842
An elevator system is shown that includes an elevator shaft (12) in which an elevator car (C) is movable along vertical axis (14). Car (C) is connected by drive ropes (26-1 through 26-4) to counterweight (CW) movable along vertical axis (20). A drive motor (M) having motor shaft sections (S-1 and S-2) extending from opposite ends of the motor is located above the elevator car for simultaneously moving car (C) and counterweight (CW) in opposite directions. First and second non-parallel drive shafts (32 and 34) are coupled to the respective motor shaft sections (S-1 and S-2) by bevel gears (36 and 38) respectively. The first drive rope (26-1) extends obliquely over the elevator car (C) between drive sheave (40) and idler sheave (44), and the second drive rope (26-2) extends obliquely over the elevator car between drive sheave (42) and idler sheave (46). The third drive rope (26-3) extends obliquely over elevator car (C) between sheaves (54) and (70). Similarly, the fourth drive rope (26-4) extends obliquely over elevator car (C) between sheaves (56) and (72). A second elevator car (CA), counterweight (CWA), drive motor (MA), drive ropes (26A-1) through (26A-4) and associated mechanism are located in the elevator shaft, which second car (CA) and (CWA) are movable by motor (MA) independently of car (C) and counterweight (CW). Drive ropes (26-1 through 26-4) extend through apertures (3lA) in counterweight (CWA) , and compensating ropes (80A-1 through 80A-4) extend through apertures (31) in counterweight (CW).
Gowling Lafleur Henderson Llp
Sakita Masami
LandOfFree
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