Camming manual lever for pull-out load
US6065581A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1999 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Mar 31, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2057
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A park lock mechanism for a transmission of a vehicle having a pawl pivotally mounted adjacent a park gear. The pawl selectively engages the park gear to prevent rotation of an output shaft. The mechanism also includes pawl actuator member having a generally flat portion on one end and an engaging surface on another end. The pawl actuator member selectively engages the engaging surface with or disengages the engaging surface from the park pawl. The mechanism further includes a manual lever, which rotates about an axis. The manual lever includes a first contact surface and a second contact surface; wherein the first contact surface is spaced closer to the axis than the second contact surface. Upon rotation of the manual lever in a first direction, the second contact surface drives the generally flat portion of the pawl actuator member to engage the pawl actuator member with the pawl. Upon rotation of the manual lever in a second direction, the first contact surface drives the generally flat portion of the pawl actuator member to disengage the pawl actuator member from the pawl. The force required to disengage the pawl actuator member and the park pawl is less than the usual, prior a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.