A DEVICE FOR MOVING A PLATFORM ALONG ELEVATOR GUIDE RAILS

Title:

A DEVICE FOR MOVING A PLATFORM ALONG ELEVATOR GUIDE RAILS

Document Type and Number:

WIPO Patent Application WO2005084185

Kind Code:

A3

Abstract:

This invention generally relates to an assembly (22) for moving a platform (28) along guide rails (24) within an elevator shaft during installation of an elevator system. The assembly includes a first platform (28), a first holding device (34), a second platform (30) and a second holding device (36). The holding devices operate to allow movement in one direction and restrict movement in an opposite direction. A moving mechanism (32) cyclically urges the first and second platforms toward and away from each other. The holding devices allow only one of the platforms to move at a time responsive to the cyclical urging of the moving mechanism. This is sequentially repeated until the first platform is in a desired position.

Inventors:

WORONOFF KENNETH JOHN (US)

Application Number:

PCT/US2004/005145

Publication Date:

December 29, 2005

Filing Date:

February 20, 2004

Export Citation:

Click for automatic bibliography generation Help

Assignee:

OTIS ELEVATOR CO (US)
WORONOFF KENNETH JOHN (US)

International Classes:

B66B9/02; B66B9/04; B66B11/02; (IPC1-7): B66B9/02; B66B9/04; B66B11/02

Foreign References:

US6202801B1	2001-03-20
US6202800B1	2001-03-20

Other References: