Traction geared machine for elevator
AssigneeOtis Elevator Company
InventorsBenjamin J. Watson, Piech Zbigniew
Life of this patent
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Abstract
A machine assembly for use in an elevator system is provided including a drive sheave (52) configured to rotate about a first axis of rotation (R). A first roller shaft (54) is configured to rotate about a second axis of rotation (S) substantially parallel to the first axis of rotation. Rotation of the first roller shaft about the second axis of rotation is configured to rotate the drive sheave about the first axis of rotation. A first motor is operably coupled to the first roller shaft and is configured to rotate the first roller shaft about the second axis of rotation.
Claims20
A machine assembly for use in an elevator system, comprising:
- a drive sheave configured to rotate about a first axis of rotation;
- a first roller shaft configured to rotate about a second axis of rotation substantially parallel to the first axis of rotation, wherein rotation of the first roller shaft about the second axis of rotation is configured to rotate the drive sheave about the first axis of rotation;
- and
- a first motor operably coupled to the first roller shaft and configured to rotate the first roller shaft about the second axis of rotation.
An elevator system, comprising:
- a hoistway having a machine room arranged at a first end;
- a car coupled with at least one car guide rail for movement in the hoistway;
- a counterweight coupled with at least one counterweight guide rail for movement in the hoistway;
- at least one traction member operably coupled to the car and to the counterweight;
- and
- a machine assembly configured to move the elevator car within the hoistway, the machine assembly including:
- a drive sheave configured to rotate about a first axis of rotation;
- a first roller shaft configured to rotate about a second axis of rotation substantially parallel to the first axis of rotation, wherein rotation of the first roller shaft about the second axis of rotation is configured to rotate the drive sheave about the first axis of rotation;
- and
- a first motor operably coupled to the first roller shaft and configured to rotate the first roller shaft about the second axis of rotation.
Dependencies are inferred from the claim text.