Brake actuators for bicycles
OwnerWinnett Boydinventor
Life of this patent
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Abstract
In a spring clutch arrangement for housing in the lower bracket of a bicycle in order to operate a bicycle brake, a conventional waisted pedal crankshaft is modified to provide a cylindrical surface which supports the clutch spring by application of a resin bonded material of high compressive strength and high coefficient of friction. A preferred material is an epoxy resin loaded with aluminum powder having a surface layer of alumina.
Claims5
A device for operating a brake of a pedal operated vehicle of the kind in which a brake operating lever projects through an opening in a pedal crankshaft housing of the vehicle, the lever being connected to a bight connecting two spring coils which concentrically surround and frictionally engage a pedal crankshaft within the housing;
- wherein the spring engages a cylindrical braking surface formed on the pedal crankshaft by a layer of cast material bonded to the crankshaft and formed of high friction particles bonded together by a high strength binder.
Dependencies are inferred from the claim text.