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US 6,138,799 AGranted
Belt-climbing elevator having drive in counterweight
AssigneeOtis Elevator Company
InventorsHelmut Schroder-Brumloop, Jean Marc Ferrary, Armando Servia, Pascal Rebillard, Richard J. Ericson
Life of this patent
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Abstract
An elevator system includes a counterweight-drive assembly (26) having a motor (32) and drive pulley (36) mounted internally to engage a drive belt (42) for climbing or descending with respect thereto, resulting in raising or lowering of an elevator car (12) coupled to said counterweight-drive assembly (26).
Claims5
An elevator system comprising
- a suspension member;
- a drive belt fixed within an elevator hoistway;
- a counterweight-drive assembly engaged with the suspension member and having drive means for engaging only said drive belt in traction and driving said counterweight-drive assembly relative thereto;
- and
- an elevator car engaged with the suspension member for concurrent movement of the car and counterweight;
- whereby said car is moved in response to movement of said counterweight-drive relative to the drive belt.
3 more elements
Dependencies are inferred from the claim text.