Parking lock system for a transmission of a motor vehicle gearbox or reduction unit
US12049958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2023 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Nov 20, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H63/3433
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A parking lock system for a motor vehicle transmission includes a latch pivotingly movable from a locking position engaged in a cavity of a locking wheel rotatably linked to an output of the transmission, to an unlocking position disengaged from the cavity. A carriage is mounted at the end of a rod and slides to a locking position. The carriage forces the pivoting of the latch in the locking, or the unlocking position. A first lever is connected to the rod, and pivots to push or pull the rod. A second lever pivots via an actuator. A spring positioned between the levers has a return force being less than the force to make the second lever pivot, such that the pivoting of the first lever leads to either: pivoting of the second lever and engagement of the latch when it is facing a cavity, or compression of the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.