Rotation mechanism and keyboard apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11545119
APP PUB NO 20210241725A1
SERIAL NO

17155530

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A rotation mechanism includes a shaft portion, a bearing portion, a protruding portion, and a stopper. The bearing portion configured to rotate with respect to a predetermined axis as a center of rotation and configured to slide relative to an outer periphery of the shaft portion. The protruding portion protrudes from the shaft portion. The stopper is integrally formed the bearing portion. The stopper faces the protruding portion. A length of the protruding portion in a direction in which the protruding portion protrudes is larger than a distance from the center of rotation to a sliding portion where the bearing portion slides relative to the outer periphery of the shaft portion.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
YAMAHA CORPORATIONSHIZUOKA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nishimura, Naoki Hamamatsu, JP 154 1987
Nishimura, Tetsuya Hamamatsu, JP 109 177
Takahashi, Yuji Hamamatsu, JP 370 5926

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