Step system on vehicle bumper for accessing truck beds and methods of making and operating the step system

作者: Gerald E. Mueller

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摘要: A step assembly in combination with a vehicle having frame and rear bumper, an upper surface generally vertical outer face, attached to the has attachment leg perpendicularly extending portion. bracket supported on face of bumper mounts for swinging movement from first operative position which one side is disposed vertically adjacent portion extends retracted second opposite lies inversely along bumper. lock device automatically between mount under influence gravity releasably locking both positions.

参考文章(22)
David S. Leuty, Truck bumper step ,(1985)
Denver F Cross, Bumper flip step ,(1969)
Lawrence E. McCafferty, Automotive mechanic's portable step ,(1988)
Ernst Maneck, Running board for vehicles ,(1969)
Nadeane P. Shearin, Emergency exit step for school bus ,(1977)
Anthony Hall, Front bumper step for trucks ,(1986)
Morris L. Dezern, Bumper mounted folding step assembly ,(1986)
Lee R. Parrill, Safety step system ,(1989)