Active guide system for elevator cage
AssigneeKabushiki Kaisha Toshiba
InventorMimpei Morishita
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Abstract
A guide system for an elevator, including a movable unit configured to move, such as,ascend and descend, along a guide rail, a beam projector configured to form an optical path of a light parallel to a moving direction of the movable unit, a position detector disposed on the optical path and configured to detect a position relationship between the optical path and the movable unit, and an actuator coupled to the movable unit and configured to change a position of the movable unit by a reaction force caused by a force operating on the guide rail on the basis of the output of the position detector.
Claims15
A guide system for an elevator, comprising:
- a movable unit configured to move along a guide rail;
- a beam projector configured to form a plurality of optical paths of light in a plane parallel to a moving direction of said movable unit, wherein at least two of said plurality of optical paths are not parallel to each other;
- position detectors disposed on said optical paths and configured to detect a position relationship between said optical path and said movable unit;
- and
- an actuator coupled to said movable unit and configured to change a position of aid movable unit by a reaction force caused by a force operating on said guide rail on the basis of an output of said position detector.
A guide system for controlling movement of an elevator car along a guide rail, the guide system comprising:
- a beam projector positioned to form light beams in a plurality of respective optical paths in a plane substantially parallel to the elevator car, wherein at least two of said plurality of optical paths are not parallel to each other;
- position detectors disposable on the elevator car to receive said light beams and configured to provide an output signal indicative of the position of the elevator car relative to the optical paths, and to detect a vertical position of said elevator car based on said at least two optical paths that are not parallel to each other;
- and
- an actuator attachable to the elevator car to urge the elevator car to a different position in response to a force operating on the guide rail and the output signal indicative of the position of the elevator car.
Dependencies are inferred from the claim text.