Switch for bicycle speed-changing gear
AssigneeSRAM Deutschland GmbH
InventorsGeorg Blaschke, Robert Wessel
Life of this patent
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Abstract
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.
Claims14
A shift device for actuating at least one gear mechanism on a bicycle, comprising:
- a housing (1) for securing the shift device on the bicycle:
- a grip element (2) mounted on and engaged over the outside of the handlebar and rotatable about a handlebar axis for actuating the shift device;
- a rotary element (3);
- and
- a cable storage device, comprising a spool (4) for winding up a cable (5) to actuate the gear mechanism, wherein the rotary element (3) is connected to the spool (4) and has at least one detent pawl (6, 6′, 6″,6′″) which engages a detent toothing (7) of the housing (1) to prevent rotation of the rotary element in a cable release direction, the rotary element (3) preloaded in the direction of rotation for release by a spring element (10) when the detent pawl (6, 6′, 6″, 6′″) is engaged with the detent toothing.
Dependencies are inferred from the claim text.