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US 11,691,851 B2Granted
Linear drive system for an elevator installation
AssigneeInventio AG
InventorKarl Weinberger
Life of this patent
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Abstract
A linear drive system for an elevator installation having an elevator car includes a stationary part for alignment with a hoistway wall of the elevator installation and a movable part that moves along the stationary part. The movable part is connected to the elevator car or to a counterweight, wherein the stationary part is shaped so as to substantially envelope the movable part.
Claims17
A linear drive system for an elevator installation having an elevator car, the linear drive system comprising:
- a stationary part adapted to be aligned with a hoistway wall of the elevator installation;
- a movable part movable along the stationary part, the movable part adapted to be connected to the elevator car or to a counterweight of the elevator installation;
- wherein the stationary part includes an enclosure encircling the movable part and having a longitudinal slot formed therein;
- a plurality of brushes or resilient elements closing the slot such that the enclosure, with the brushes or the resilient elements, completely envelopes the movable part;
- and
- at least one bridge portion connected to the movable part and adapted to interconnect the movable part to either the elevator car or a counterweight of the elevator installation, the brushes or the resilient elements permitting passage of the bridge portion along the slot and the brushes or the resilient elements closing the slot after the passage of the bridge portion thereby preventing pollution from egressing into the stationary part.
3 more elements
A linear drive system for an elevator installation having an elevator car, the linear drive system comprising:
- a stationary part adapted to be aligned with a hoistway wall of the elevator installation, the stationary part being formed as a rectangular enclosure having a wall with a longitudinal opening and a plurality of permanent magnets attached to an inner surface of another wall of the enclosure;
- a movable part movable along the stationary part, the movable part adapted to be connected to the elevator car or to a counterweight of the elevator installation by a bridge portion extending through the longitudinal opening, the movable part including a plurality of coils;
- wherein the stationary part substantially envelopes the movable part;
- and
- a plurality of brushes or resilient elements closing the longitudinal opening such that the enclosure, with the brushes or the resilient elements, completely envelopes the movable part, the brushes or the resilient elements permitting passage of the bridge portion in the longitudinal opening and the brushes or the resilient elements closing the longitudinal opening after the passage of the bridge portion thereby preventing pollution from egressing into the stationary part.
2 more elements
Dependencies are inferred from the claim text.