Switching mechanism for fluid-operated gear shifters

US4360718A · kind A · utility

Assignee

• Zahnradfabrik Friedrichshafen AG · DE

Inventors

• Alfred Schobinger · Friedrichshafen, DE
• Gunter Schwarz · Altenkirchen, DE
• Willy Beig · Friedrichshafen, DE

Key dates

• Filing date: Sep 10, 1980
• Grant date: Nov 23, 1982
• Expiry date: Sep 10, 2000

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H2009/066
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A shift lever for the selective actuation of power tools on a utility carries a rotary and axially shiftable knob which can be indexed by ball checks in a plurality of angular positions to establish different speed ratios of the vehicular transmission by actuating respective microswitches through cams bearing upon mobile bodies which are lodged in apertures of a stationary collar surrounding an extension of the knob. A rocker switch on that knob can be flipped by the fingers of the operator to switch between forward and reverse drive.