Automobile wheel disk

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9724960
SERIAL NO

15118940

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a step of forming a fixing groove for a wheel disk (20), an inner circumferential end of a first hub hole peripheral portion (41) is squeezed by a protruding portion (D21) of a back die (D2) and a dent portion (D31) of a front die (D3). In this manner, a fixing groove (50) is formed in a back surface of the first hub hole peripheral portion (41). Along with this, an excess material is pushed into the dent portion (D31) so that a protrusion (51) is formed on a front surface of the first hub hole peripheral portion (41). Thus, without requiring a step of cutting the excess material, the fixing groove (50) can be formed in a back surface of a hub hole peripheral portion (30).

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First Claim

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Patent Owner(s)

Patent OwnerAddress
CENTRAL MOTOR WHEEL CO LTD1-7 MARUTA OZAKI-CHO ANJO-SHI AICHI 4460004 ?4460004

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamada, Shinji Miyoshi, JP 143 1457

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