Emergency drive for an elevator
AssigneeInventio AG
InventorsAndrzej Cholinski, Heinrich Kuttel
Life of this patent
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Abstract
An emergency drive is a toothed element such as a gear rim, is arranged on a traction sheave of an elevator drive. During emergency operation, the gear rim is driven by means of a pinion of an auxiliary engine. The engine is installed on the elevator drive only during an emergency operation. After emergency operation, the engine is removed from the drive unit. The gear rim may be composed of several layers of interlocked segments. The layers are mutually shifted in a circumferential direction. Each segment consists of laminated/interlocked sheet metal segments, which are, as mass-produced goods, cheaply producible through cutting and punching procedures.
Claims7
An emergency drive for an elevator having an elevator car and counterweight-moving drive unit comprising an engine and a traction sheave through which cables connected with the elevator car and the counterweight are driven, comprising an emergency drive engine and a drive element mountable to the drive unit and directly coupled to the traction sheave.
Dependencies are inferred from the claim text.