Speed-changing device for a bicycle
AssigneeShimano Industrial Company Limited
InventorMasashi Nagano
Life of this patent
Estimating the term…
Abstract
A speed-changing device for a bicycle wherein a boss of an operating lever is rotatably supported to a lever shaft, a holder supported non-rotatably to a fixing member including the lever shaft incorporates a sound-generating mechanism comprising a ridge-groove member having a ridge-groove surface and a sound-generator engageable therewith to generate a sound, thereby forming a sound-generator unit, one of the ridge-groove member and sound-generating of the unit is adapted to engage for associated motion with the boss of the operating lever, so that the operating lever is turned to generate a sound.
Claims8
A speed-changing device for a bicycle, comprising a fixing member having a lever shaft, an operating lever having a boss supported rotatably relative to said lever shaft, and a sound-generating unit for generating a sound upon rotational operation of said operating lever, said sound-generating unit comprising a holder supported non-rotatably to said fixing member, and a sound-generating mechanism including a ridge-groove member having a ridge-groove surface and a sound-generator engageable with said ridge-groove surface for generating a sound, said ridge-groove member and said sound-generator being disposed within a space defined by said boss, said holder supporting said ridge-groove member and said sound-generator, said ridge-groove member and said sound-generator being held together by a holding and biasing means comprising a holding member projecting outwardly from said holder and a spring disposed between said holding member and said sound generator, one of said ridge-groove member and said sound-generator being engaged with said boss of said operating lever to move in association therewith and the other being held stationary.
Dependencies are inferred from the claim text.