Importance

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Abstract

A micro-spring brake adjuster is provided for a bicycle brake having a pair of bicycle brake lever arms mounted rotatably on the bicycle frame fork arms of a bicycle. Bicycle brakes of this type utilize elongated, linear spring rods that are resiliently deflected to apply biasing forces that tend to disengage the brake pads from contact with the bicycle wheel rim. The brake adjuster includes a body that fits onto a bicycle brake spring rod. The brake adjuster is also provided with structure having a cam surface that can be interposed between the brake spring rod and the spring pin against which the brake spring rod resiliently bears. Longitudinal movement of the adjuster along the length of the spring rod in one direction increases the amount of structure of the adjuster interposed between the spring rod and the spring pin, thereby increasing the resilient deflection of the linear spring rod, which in turn increases the outwardly biasing force that the spring rod exerts on the brake pad. Conversely, longitudinal movement of the adjuster in the opposite direction along the spring rod reduces the amount of structure of the adjuster interposed between the spring rod and the spring pin against which the spring bears. This reduces the spring bias against the spring pin, thereby reducing the force with which the brake pad is biased away from the bicycle wheel rim. The micro-spring adjuster of the invention can be operated without dismounting from the bicycle and can fine tune the bias of each brake spring rod independently of the other in a bicycle brake assembly.

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First Claim