Patent · US Active

Actuator device for actuating a locking mechanism

US7650978B2 · kind B2 · utility

11Cited by

6References

8Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Uwe Rühringer · Tettnang, DE
Wolfgang Schmid · Regensburg, DE
Thilo Schmidt · Meckenbeuren, DE

Key dates

Filing date	Jun 11, 2005
Grant date	Jan 26, 2010
Priority date	—
Expiry date	Jul 17, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2061/226
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An actuating mechanism (1) for operating a parking-lock mechanism of the drive chain of a vehicle with an automatic drive. The actuating mechanism has a piston unit (4), a detent element and an electromagnetic operating device (6) for operating a release element (7), which is intended for deactivating the detent element (5). The piston unit communicates with an emergency unlocking mechanism (14) and is positioned to open the locking mechanism by way of the piston unit. The detent element, the piston unit and the release element interact such that the locking mechanism remains in the currently engaged state when the locking mechanism is open and the operating device is not electrified, as well as when the locking mechanism is closed and a fluid pressure is applied to the piston unit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.