Tower lift
AssigneeSemes Co., Ltd.
InventorsJung Hun Lee, Sung Hyun Lee, In Bae Jang
Life of this patent
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Abstract
A tower lift includes a main frame extending in a vertical direction, a movable frame configured to be movable in the vertical direction along the main frame, a carriage module mounted to the movable frame, a pair of driving rails extending parallel with each other on the main frame and comprising a plurality of first permanent magnets and a plurality of second permanent magnets arranged in the vertical direction, respectively, a driving wheel disposed between the driving rails to be spaced apart from the driving rails and comprising a plurality of third permanent magnets arranged in a circumferential direction, and a driving unit for rotating the driving wheel.
Claims12
A tower lift comprising:
- a main frame extending in a vertical direction;
- a movable frame configured to surround the main frame and to be movable in the vertical direction along the main frame;
- a plurality of levitation units for levitating the movable frame from the main frame;
- a carriage module mounted to the movable frame;
- a pair of driving rails extending parallel with each other on the main frame and comprising a plurality of first permanent magnets and a plurality of second permanent magnets arranged in the vertical direction, respectively;
- a driving wheel disposed between the driving rails to be spaced apart from the driving rails and comprising a plurality of third permanent magnets arranged in a circumferential direction;
- and
- a driving unit comprising a motor for providing a rotational force to rotate the driving wheel and a brake for applying a braking force to a rotational shaft of the motor.
Dependencies are inferred from the claim text.