Elevator door drive device

Details Elevator door drive device Elevator door drive device

2006-08-29

2006-08-29

Matecki, Kathy (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

With barrier for regulating access to load support

Includes motor or motor driven linkage for shifting barrier

C187S330000, C187S335000, C187S315000

Reexamination Certificate

active

07097002

ABSTRACT:
An elevator door drive device, which opens and closes at least one car door leaf and a corresponding shaft door leaf, includes a coupling mechanism mounted at the car door leaf for transmitting the car door leaf movement to the shaft door leaf with two parallel entraining runners mounted on pivotable adjusting elements. The spacing between the runners is adjustable and a drive unit transmits closing and opening movements to the car door leaf by way of a drive apparatus that leads the entraining runners to a coupling element at the shaft door leaf before the start of the opening movement and moves them away from the coupling element after the end of the closing movement. The pivotable adjusting elements, during opening or closing the door leaf are blocked by means of a catch acting in both pivot directions.

REFERENCES:
patent: 4947964 (1990-08-01), Husmann
patent: 5246089 (1993-09-01), Husmann et al.
patent: 6021871 (2000-02-01), Grabner
patent: 0 332 841 (1989-09-01), None
patent: 2 823 495 (2002-10-01), None
patent: 2823495 (2002-10-01), None
patent: WO 03/089356 (2003-10-01), None

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