Patent · US Expired

Gear-changing device for a gear box, in particular a motor vehicle gear box

US5586470A · kind A · utility

1Cited by

1References

6Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Gerhard Bailly · Friedrichshafen, DE
Detlef Baasch · Friedrichshafen, DE
Unal Gazyakan · Friedrichshafen, DE

Key dates

Filing date	Mar 31, 1995
Grant date	Dec 24, 1996
Priority date	—
Expiry date	Mar 31, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2011
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention concerns a gear-changing device for a transmission, in particular a toothed gear system. During switching operations two gear stages of a gear group should not be simultaneously engaged. According to the invention this is prevented by the fact that a slider-crank mechanism (4) (oscillating cranks and a slide rod (1)) are moved from a stationary rest position to their switching position. The rest position is urged by coupling mechanisms (6). A driving position is established with the slide rod (1). In order to prevent two speeds from being simultaneously switched during a faulty operation, the distances between the rest positions and between the driving position (FIG. 1 ) of the coupling mechanisms (6) differ.

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