Patent · US Expired

Actuating mechanism for the automatic operation of a gear-shift in a transmission

US6321612A · kind A · utility

18Cited by

2References

12Claims

0Family size

Assignee

Mannesmann Sachs AG · DE

Inventors

Lutz Leimbach · Oberwerrn, DE
Thomas WIRTH · Berlin, DE
Andreas Ratte · Diez, DE
Alexander Horst · Schweinfurt, DE

Key dates

Filing date	Apr 14, 1999
Grant date	Nov 27, 2001
Priority date	—
Expiry date	Apr 14, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/20085
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An actuating device for automatic operation of a gear change in a transmission that produces a change in predetermined translation ratios of the gear change transmission in any desired sequence comprises first and second drives that are in active connection with a selector shaft. The first drive is connected to the selector shaft via a guide mechanism which comprises at least one constraint guide that corresponds to a shifting path. The second drive is in active connection with the selector shaft for providing an operating force in the axial direction and an operating force in the circumferential direction of the selector shaft. The resulting movement depends on the operating position of the guide mechanism.

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