B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
296/77, 74/80
B60R 3/02 (2006.01) B61D 23/02 (2006.01) B62D 25/22 (2006.01) E05F 15/10 (2006.01) F16H 37/00 (2006.01)
Patent
CA 1056420
ABSTRACT OF THE DISCLOSURE A drive arrangement for transport vehicles is operative for moving a step plate between operative positions so that passenger access to the vehicle is facilitated. The drive arrangement in- cludes a turnable shaft coupled to the step plate, and a motor coupled with the shaft for turning the latter about its axis and for moving the step plate between its operative positions. An un- coupling device disengages the motor from the shaft so that the step plate can be manually moved. The drive arrangement also comprises a switching arrangement having first cam parts spaced from and about the shaft, and second cam parts mounted on the shaft for joint ro- tation therewith. The second cam parts each have n predetermined angular position relative to the shaft and to the first cam parts for controlling the operation of the motor so that manual movement of the shaft upon uncoupling of the motor therewith forceably positions the second cam parts to retain their respective predetermined posi- tions. Thereby, subsequent actuation of the motor is greatly facil- itated. -1-
263215
Brand Werner
Geers Leo
Pietrowski Edmund
Schillings Dieter
LandOfFree
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