Back to results
US 4,693,135 AGranted
Manually operable gearshift mechanism
AssigneeWickes Manufacturing Company
InventorsWilliam J. LaRocca, David M. Trush
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeWickes Manufacturing Company
InventorsWilliam J. LaRocca, David M. Trush
Estimating the term…
An improved manually operable gearshift mechanism includes a support of sheet metal construction and a gearshift selector mounted on the support by a ball and socket arrangement for pivotal movement about first and second orthogonal axes. The gearshift selector is pivotal to a plurality of positions relative to the support to position a pair of gearshifting cables in positions corresponding to selectable transmission gears. The positioning of one of the gearshifting cables is achieved by a bellcrank pivotally mounted on the support and displaceable by a pin extending from the ball and displaceable about the second axis with the gearshift selector. Positioning of the other gearshifting cable is achieved by a link forming an extension of the gearshift selector below the first and second axes and which link is pivotal with the gearshift selector about the first axis. The link is pivotally interconnected with the gearshift selector so that the cable attached to the link is maintained substantially against lateral displacement during pivotal movement of the gearshift selector about the second axis.
A manually operable gearshifting mechanism for displacing a pair of transmission gear actuators comprising support means, a gearshift lever, means mounting said gearshift lever on said support means for pivotal movement about first and second orthogonal axes, means to reciprocate one of said gear actuators in response to pivotal movement of said gearshift lever about said first axis, pin means on said gearshift lever parallel to said first axis, and means actuated by said pin means to reciprocate the other of said gear actuators in response to pivotal movement of said gearshift lever a given angular distance about said second axis, said means to reciprocate said one gear actuator including means responsive to said pivotal movement of said gearshift lever said given angular distance about said second axis to restrain displacement of said one gear actuator to an angular distance less than said given angular distance, said displacement of said one gear actuator being laterally of the direction of reciprocating movement thereof.
A manually operable gearshifting mechanism for displacing a pair of transmission gear actuators comprising support means having longitudinally opposite ends, a gearshift lever mounted on said support means for pivotal movement about first and second axes respectively extending laterally and longitudinally of said support means, means connecting one of said pair of gear actuators to said lever at a point of connection spaced from said first axis for pivotal movement of said gearshift lever about said first axis to reciprocate said one gear actuator longitudinally of said support means, means to translate pivotal movement of said gearshift lever a given angular distance about said second axis to longitudinal reciprocation of the other of said pair of gear actuators, and said means connecting said one actuator to said gearshift lever being operable in response to pivotal movement of said gearshift lever said given angular distance about said second axis to restrain displacement of said point of connection to an angular distance less than said given angular distance, said displacement of said point of connection being laterally of the direction of reciprocation of said one actuator.
Dependencies are inferred from the claim text.