Speed changing device
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United States of America Patent
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-
Jun 19, 1984
Grant Date -
N/A
app pub date -
Nov 2, 1981
filing date -
Nov 19, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A speed-changing device which supports an operating lever rotatably to a fixing member having a lever shaft, the lever being provided at a boss thereof with a cavity, the fixing member being provided with a support member entering into the cavity, the cavity housing therein a sound generating mechanism comprising a plurality of recesses and an engaging member, so that a sound generated by the engagement of engaging member with each recess is amplified by resonance of said cavity.
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