Rocker arm and method of manufacturing same

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United States of America Patent

PATENT NO 7673605
SERIAL NO

11700110

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Importance

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Abstract

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A rocker arm that is rockably attached to a cylinder head actuates a valve by a guide groove that is formed at an end thereof engaging with an upper end of a valve stem, and a roller that is mounted in a roller housing portion of the arm main unit contacting against a cam and rocking. The guide groove is formed by press working ends of the arm main unit in the thickness direction of the plate material to form a pair of walls, and thereafter applying sandwiching pressure in the lateral direction to the walls to increase the height thereof.

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Patent Owner(s)

Patent OwnerAddress
OTICS CORPORATION10 HAMADASHIMO NAKABATA-CHO NISHIO-CITY AICHI 444-0392
NAKANISHI METAL WORKS CO LTDKITA-KU OSAKA-SHI OSAKA 530-8566

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiramatsu, Naoki Hekinan, JP 21 27
Hirano, Tomiyasu Gamagori, JP 6 40
Kawatake, Yoshio Osaka, JP 4 32
Takeuchi, Akira Nishio, JP 66 576
Todo, Kimihiko Aichi, JP 13 28

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