Patent · US Expired

Gear shifting drum for a variable-speed gearbox

US6370976B1 · kind B1 · utility

12Cited by

5References

14Claims

0Family size

Assignee

INA Wälzlager Schaeffler oHG · DE

Inventors

Horst Doppling · Herzogenaurach, DE
Wolgang Steinberger · Herzogenaurach, DE
Manfred Winkler · Herzogenaurach, DE

Key dates

Filing date	Dec 17, 1999
Grant date	Apr 16, 2002
Priority date	—
Expiry date	Dec 17, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19279
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A gear shifting drum (2) for a gear shifting device of variable-speed gearboxes for motor vehicles has a curved path (11a to 11c) for guiding an engagement member (13) of the gearshift fork (12a to 12c), wherein the gearshift fork (12a to 12c) is directly connected to a synchronization device. According to the invention, at least one radially outwardly directed wall (9, 10) is arranged on the outer surface area (8) of the gear shifting drum (2) for formation of the curved path (11a to 11c).

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