Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1994-12-02
1996-06-18
Bonck, Rodney H.
Machine element or mechanism
Control lever and linkage systems
Elements
403 84, 403103, G05G 108
Patent
active
055267130
ABSTRACT:
The present invention provides an improved axially pivotable dolly crank handle for adjusting a conventional dolly stand post on a conventional tractor trailer, particularly when the tractor trailer is parked in very close proximity to another tractor trailer or other obstruction which restricts rotational movement of a conventional dolly crank handle. The present invention has spring-tensioned cooperating male and female members which interlock together in a plurality of orientations about an axial core. Aligning and engaging the male member with the female member locks the present invention in one of the plurality of orientations, and the spring retains the present invention in this locked position. The present invention is then used to rotate the conventional dolly stand post on the conventional tractor tailor in a manner well-known in the art. Lubrication is introduced to the axial core and to the male and female members through a grease jerk and drain holes in a protective casing, and accumulated liquid within the protective casing is drained through a drain hole in the protective casing.
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Bonck Rodney H.
Gugliotta John D.
Kim Chong H.
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