Shaft coupling structure
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United States of America Patent
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Dec 1, 2015
Grant Date -
Jun 5, 2014
app pub date -
Nov 21, 2013
filing date -
Dec 4, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
In a shaft coupling structure in which a second shaft is inserted into a cylindrical portion provided in a first shaft to be coupled with each other, with a bush being interposed between an inner circumference of the first shaft and an outer circumference of the second shaft, the first shaft and the second shaft are coupled with each other by a combination of a key coupling and a clamp coupling; the first shaft has a keyway with which the key engages and a shaft slit which is formed in the cylindrical portion by cutting off a portion thereof in the axial direction; and a fastener for the clamp coupling is mounted on a portion of an outer circumference of the first shaft in which the shaft slit is formed and the bush has a bush slit which corresponds to the keyway.
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