Fichtel & Sachs Ag

Zf Sachs Ag

Klaus Neumann

Frank Hirschmann

Markus Arbeiter

A friction clutch for motor vehicles with a ring-shaped pressure plate with a more-or-less radially oriented, ring-shaped friction surface, which can be moved axially against a ring-shaped friction lining carried by a support plate. The ring-shaped friction surface consists of a radially inner, ring-shaped partial friction surface and an adjoining radially outer ring-shaped partial friction surface. The radially outer partial friction surface projects axially to a slight extent beyond the radially inner partial friction surface.

Friction clutch

This invention relates to a latching shifter for bicycle transmissions, such as hub transmissions or derailleurs, with a housing, a latch element with notches, a latching spring with a latching lug and two projections, as well as a slide with different bias stages which interact with the projections of the latching spring. By changing the position of the slide, the projections of the latching spring are brought together with different bias stages of the slide, whereupon the latching spring is pressed with varying degrees of pressure by means of its latching lug into the notches of the latching element. The advantage of the externally adjustable bias is that the shifter can be individually adjusted in terms of the retention force which prevents unintentional shifting when the bicycle is in motion.

Growing community of inventors

Niederwerrn, Germany

Klaus Neumann