Abstract: An elevator car and counterweight system is provided with a variable drag element. The variable drag element is controlled such that the lower of the counterweight and the car has a higher drag against further movement. In an embodiment which is particularly useful in a 2:1 roping system, the sheaves (54, 58) associated with the counterweight (56) and the car (60) receive a braking/drive motor (62, 64) to provide the variable drag. While the present invention provides the variable drag to compensate for vertical differences between the counterweight and car, the invention can also be utilized to hold the car at a particular floor. Further, this invention can be utilized to address a counterweight or car jump situation. Another disclosed drag element may be a magnetizable member (40, 33) guided along a guide rail (34, 36) for each of the car (32) and the counterweight (38). A control controls the magnetic force associated with the guide elements to hold the car or prevent counterweight jump.
Abstract: A hinge for pivotally mounting a first door to a door pillar of a vehicle body of a vehicle. The hinge having been provided thereon one portion of a co-operating latching arrangement for releasably securing in a closed position a second door.
Type:
Grant
Filed:
May 3, 2002
Date of Patent:
May 18, 2004
Assignee:
Meritor Light Vehicle Systems
Inventors:
Nigel Victor Spurr, Sidney Fisher, Simon Dobson