Invention Grant
- Patent Title: Parking lock of an automatic transmission for a vehicle
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Application No.: US16159849Application Date: 2018-10-15
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Publication No.: US10731758B2Publication Date: 2020-08-04
- Inventor: Markus Herrmann , Marcel Gutzeit
- Applicant: ZF Friedrichshafen AG
- Applicant Address: DE Friedrichshafen
- Assignee: ZF FRIEDRICHSHAFEN AG
- Current Assignee: ZF FRIEDRICHSHAFEN AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Dority & Manning, P.A.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1a6fcad6
- Main IPC: F16H63/34
- IPC: F16H63/34 ; B60T1/00 ; F16D63/00 ; F16D65/16 ; F16H63/48 ; F16D121/06 ; F16D121/14 ; F16D123/00 ; F16D125/28 ; F16D127/06 ; F16D129/08

Abstract:
A parking lock having a locking pawl engageable into a parking interlock gear, a connecting rod with an interlocking element to prevent the parking lock from disengaging when in the locked condition, a spring for engaging the parking lock, a hydraulically actuatable actuator for disengaging the parking lock, and an emergency release device for emergency disengagement of the parking lock. The piston is articulatedly connected to a first disk rotatably mounted on a selector shaft, a second disk connected to the selector shaft in a torsion-proof manner is articulatedly connected to the connecting rod, the spring is tensioned between the transmission housing and the second disk, and the emergency release device is connected to the selector shaft in a torsion-proof manner. The first disk is operatively connected to the second disk such that rotation of the second disk by the emergency release device does not rotate the first disk.
Public/Granted literature
- US20190120375A1 Parking Lock of an Automatic Transmission for a Vehicle Public/Granted day:2019-04-25
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