Autonomous elevator car mover configured with guide wheels
AssigneeOtis Elevator Company
InventorRandy Roberts
Life of this patent
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Abstract
Disclosed is a car mover, configured for autonomously moving an elevator car along a track beam in a hoistway lane, having: a car mover body; a drive wheel operationally connected a lateral side of the car mover body, and configured to rotate about a drive wheel axis; a first guide wheel operationally connected to the lateral side of the car mover body, wherein the first guide wheel is offset from the drive wheel so that, in operation: the first guide wheel engages a lateral sidewall of the track beam when the drive wheel laterally moves on the track beam, to thereby restrict lateral motion of the drive wheel on the track beam.
Claims5
A car mover, configured for autonomously moving an elevator car along a longitudinally extending track beam in a hoistway lane, comprising:
- a car mover body;
- a drive wheel operationally connected to a lateral side of the car mover body, and
- a drive wheel motor configured to drive the drive wheel to rotate about a drive wheel axis;
- a first guide wheel, and a second guide wheel, operationally connected to the lateral side of the car mover body,
- wherein the first guide wheel is offset from the drive wheel, and the first and second guide wheels are spaced apart from each other, so that, in operation, when the drive wheel is disposed between first and second lateral sidewalls of the track beam:
- the first guide wheel engages the first lateral sidewall of the track beam when the drive wheel laterally moves on the track beam, and the second guide wheel is laterally spaced apart from each of the lateral sidewalls of the track beam, to thereby restrict lateral motion of the drive wheel on the track beam,
- wherein the guide wheels are configured to have respective lateral gaps with the first and second lateral sidewalls of the track beam when the drive wheel is laterally centered on the track beam;
- and
- one or more brackets, including a first bracket having a first bracket end connected to the lateral side of the car mover body, and a bracket body extending away from the first bracket end to a second bracket end,
- wherein the first and second guide wheels are connected to the car mover body via the one or more brackets, wherein the first guide wheel is connected to the first bracket between the first and second bracket ends,
- wherein in operation, while the drive wheel engages the track beam, one or more of the guide wheels engages the track beam at a location that is longitudinally offset from the drive wheel.
Dependencies are inferred from the claim text.