Emergency release of a parking gear

US12123493B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Julia Klein · Oberdorf, DE
• Tobias Miller · Weingarten, DE

Key dates

• Filing date: Dec 22, 2021
• Grant date: Oct 22, 2024
• Expiry date: Dec 22, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H63/3483
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An emergency release of a parking lock of a vehicle transmission arranged in a transmission housing 9 includes an actuating element of an actuator for actuating the parking lock is drivable so as to be linearly movable between an interlock position and a release position. The emergency release lever 3 is pivotable away from a normal position past an emergency release position into an installation position and, in a second end region, has two guide projections 15, 16, which are parallel to each other and extend radially toward the pivot pin 7, and between which a securing projection 10, which is fixedly connected to the transmission housing 9, projects when the emergency release lever 3 is in the normal position and in the emergency release position. In the installation position of the emergency release lever 3, the securing projection 10 is located outside the area between the two guide projections 15, 16 on the emergency release lever 3.