Sychronizer unit for a manual transmission, and manual transmission

US10851848B2 · kind B2 · utility

Assignee

• Hoerbiger Antriebstechnik Holding GmbH · BE

Inventors

• Michael Koelzer · Füssen, DE
• Juergen Binder · Leutenbach, DE
• Peter Echtler · Schongau, DE
• Wolfgang Voelk · Hohenfurch, DE

Key dates

• Filing date: Oct 20, 2017
• Grant date: Dec 1, 2020
• Expiry date: Nov 24, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2023/0637
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A synchronizer unit for a manual transmission, in particular of a motor vehicle, has a hub which is adapted to be connected to a gear shaft for joint rotation therewith and includes a circumferentially continuous external toothing, a sliding sleeve which is received on the external toothing of the hub for displacement in the axial direction, but so as to be coupled in the circumferential direction to prevent relative rotation, at least one synchronizer ring which includes a preferably cone-shaped friction surface for friction coupling of the synchronizer ring to a speed change gear of the manual transmission and is adapted to be actuated by the sliding sleeve, and a spring ring which is arranged at an axial side of the external toothing of the hub and is configured to lock the sliding sleeve in a neutral position. The spring ring rests against a face side of the sliding sleeve and being operatively arranged between the sliding sleeve and the synchronizer ring.