Toyota Jidosha Kogyo Kabushiki Kaisha

Kiyoshi Sakaguchi

Toshimitsu Sakai

Fumio Ueda

Hitoshi Mizutani

Toshikatsu Taniguchi

Hiroyuki Murase

Katsuji Ohtsubo

Takeshi Nakakobara

A rocker arm mechanism in an OHC type engine which includes a cam which is rotatable while interlocking with a crank shaft; and a rocker arm which oscillates in accordance with the rotation of the cam so as to open and close an intake valve and an exhaust valve, characterized in that the rocker arm includes a rocker arm body and a pad member rotatably fitted to the rocker arm body and adapted to be a contact portion to the cam, and that the cam and the pad member are brought into contact with each other such that the pad member may rotate due to a frictional force generated between the cam and the pad member as the cam rotates.

Rocker arm mechanism in overhead cam type engine

A universal joint of the type including: a first shaft to which tripod shafts are secured radially from the axis thereof; three rollers formed at the outer peripheries thereof with spherical surfaces and with which the tripod shafts are crowned; and a second shaft provided therein with raceways identical in number with the rollers and on which the outer peripheries of the rollers roll and are supported. The universal joint further includes a plurality of oil grooves provided at contact-roll surfaces between the rollers and the cylindrical raceways.

Universal joint

Growing community of inventors

Aichi, Japan

Kiyoshi Sakaguchi