Anti-tilt feature for torsion spring for default-to-park lever
AssigneeFord Global Technologies, LLC
InventorsTodd C. Spaulding, Susan M. Wyatt
Life of this patent
Estimating the term…
Loading patent…
AssigneeFord Global Technologies, LLC
InventorsTodd C. Spaulding, Susan M. Wyatt
Estimating the term…
In a default-to-park system for a transmission, a lever member has a cylindrical hub configured to rotate about a spindle. The lever member has a transverse plate including a lever arm connected to a park release actuator and to a link to a park pawl of the transmission. Under normal operation, a transmission controller shifts the actuator to turn the lever arm and release the park pawl so the transmission can rotate. In an absence of a signal from the controller to the actuator, a bias spring restores the lever arm so that the transmission is locked. The bias spring comprises torsion coils disposed over the hub, a fixed end, and a drive end. The drive end has a heel segment bearing against a transverse surface of the transverse plate facing the torsion coils and a loading hook wrapped around an edge of the transverse plate.
A default-to-park system for a transmission, comprising:
A default-to-park system for a transmission, comprising:
Dependencies are inferred from the claim text.