Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1995-03-01
1998-12-01
Bonck, Rodney H.
Machine element or mechanism
Control lever and linkage systems
Elements
192 4A, 477 96, G05G 508, B60K 4104, B60K 4126
Patent
active
058423842
ABSTRACT:
The present invention, in certain embodiments, discloses a vehicle transmission system having a typical transmission with associated transmission shifting apparatus that includes gears and a manually-operated gear selection apparatus. Such gear selection apparatus includes a transmission selector shaft interconnected between a shifting handle or rod in the vehicle's cab and internal gearing within the transmission. Manual manipulation of the cab-mounted handle or rod moves the transmission selector shaft whose movement in turn results in a gear change. The transmission includes a locking system according to the present invention with a swing arm secured to the transmission selector shaft with an upper surface having a window therethrough or stop thereon. In one embodiment the upper surface is curved to facilitate its movement with respect to a selective locking mechanism which has a locking rod movable into the window or against the stop to prevent movement of the transmission selector shaft--thereby preventing shifting of the transmission--and movable from the window or past the stop to again permit movement of the transmission selector shaft and shifting of the transmission. In one aspect one stop or two spaced-apart stops are used on the upper surface to abut the locking rod to prevent shifting.
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Bonck Rodney H.
McClung Guy
Safety Systems & Controls, Inc.
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