Sram Deutschland Gmbh

Sram Corporation

Georg Blaschke

Robert Wessel

Kevin F Wesling

Christopher Shipman

James P Orrico

John D Cheever

Werner Steuer

Robert K Boehm

Marcus Auer

Andreas A Benz

Ted Chen

Danny R Smith, Jr

A chain guide of a bicycle derailleur for displacing a chain between gears that includes inner and outer side plates, a pivot shaft and a thermoplastic connector. The pivot shaft pivotably connects the chain guide to the bicycle derailleur. The thermoplastic connector injection molds the pivot shaft to one of the inner and outer side plates.

Bicycle derailleur

A twistshifter mounted about a handlebar. The twist-shifter includes a housing element which may be fixed to the handlebar and an actuating element which may be rotated about the axis of the handlebar tube a predetermined angle. The actuating element may be fixed axially to the housing element by a locking device having interlocking first and second latching elements. The first latching element is arranged on the housing element. The second latching element that is complementary in shape to the first latching element is arranged on the actuating element.

Twist-grip bicycle shifter

A shifting device including first and second shift control members, a takeup element, a holding member, and a release member. The takeup element configured for winding and unwinding a tensioned control cable. The first control member is rotatable about a handlebar and configured to rotate the takeup to at least pull or wind the control cable onto the takeup. The second control member is a return-to-neutral member for rotating the takeup to release the. The holding member is rotatable with the takeup and retains the takeup in select angular positions. The release member is operable for disengaging the holding member in response to the actuation or return stroke of the second control member for allowing the takeup to unwind the cable a sufficient amount to enable a single gear shift.

Bicycle gear shifter having separate shift control members for cable pull and release

The invention relates to a shifter for actuating at least one gear mechanism of a bicycle including a housing, a gripping element for actuating the shifter, and a movable element for exerting tension on and/or for releasing a gear transfer means. The movable element has a pawl which engages in a set of latching teeth in the housing. The gripping element has a lifter which disengages the pawl from the latching teeth during a shifting operation in the release direction. A driver on the gripping part preloads a spring on the movable element during a shifting operation in the release direction which urges the movable element in the release direction. The advantage of a shifter for bicycle gear mechanisms according to the present invention is to be found in that, by simple means, it becomes possible to shift gears, especially in the release direction, quickly and independently of the preload being exerted on the movable element by the gear mechanism via the transfer element.

Shifter for actuating the gear mechanism of a bicycle

An axle shift device for transmitting control movements from a remote control to a multi-speed hub in a cycle includes a housing and a pivoted lever arranged in the housing. The axle shift device is arranged on a hub axle of the multi-speed hub. This pivoted lever is in form-locking effective connection with a force transmission element which has a head and is preferably actuated in tension against a return spring. A slide arranged in the housing can move the pivoted lever out of form-locking engagement with the head of the force transmission element, thereby allowing the axle shift device to be removed from the hub axle in a simple manner without the aid of tools.

Axle shift device for multi-speed hubs for bicycles

A switch for actuating a gear on a bicycle includes a housing with an inner toothing formation, a grip part and a rotary part with a cable drum for a fraction cable. The grip part having an integrally formed section for actuating an elastic element on the rotary part so that when the grip part is rotated in a switching direction which releases the traction cable the elastic element is pretensioned until a disengagement member on the grip part disengages a pawl on the rotary part which interacts with the inner tooting formation in the housing. Both the pawl and the elastic element are connected integrally to the rotary part resulting in advantage in terms of the production and assembly of the switch.

Switch for a bicycle

A switch for actuating at least one gear mechanism on a bicycle includes a housing and a movement element movably arranged relative to the housing and including a transmission means for controlling the gear mechanism in a tensioning direction and in a release direction. A first pawl interacts with a first latching toothing arrangement in the housing. The individual gear stages in the switch are produced with a form fit via one or more controllable pawls. The switch is designed as a trigger switch for shifting through a plurality of gear stages in the tensioning direction and in the release direction by a single switching movement.

Switching device for bicycle gear mechanisms

A shift device for actuating at least one gear mechanism on a bicycle, comprising a housing for securing the shift device on the bicycle, a grip element for actuating the shift device, a rotary element and a cable storage device, in particular a spool for winding up a cable to actuate the gear mechanism where the rotary element is connected to the spool and has at least one detent pawl which engages in detent toothing of the housing. It is advantageous that the drive feature on the grip element takes the rotary element along directly in one direction of rotation, whereas the movement of the rotary element in the opposite direction of rotation is effected by release of the detent pawl.

Growing community of inventors

Geldersheim, Germany

Georg Blaschke