Kabushiki Kaisha Yutaka Giken

Honda Giken Kogyo Kabushiki Kaisha

Yutaka Giken Co., Ltd.

Nsk-warner Kabushiki Kaisha

Shusuke Yamamoto

Hiroshi Yabe

Toshiyuki Iwai

Shinichi Kuwahara

Hirofumi Noro

Tomoo Oka

Michikiyo Hiasa

A pin connection structure is used in a floating type brake disc assembly. The assembly is made up of a hub, and an annular disc which is concentrically disposed around the hub with a clearance therebetween. The hub and the disc have plural sets of semicircular connecting dents opening toward the clearance to thereby form respective inserting holes. A hollow pin is inserted into each of the inserting holes with a washer fitted on that one end of the hollow pin which is subsequently caulked radially outward for fixing the washer in position. The hollow pin is made of a metal having a surface-treated layer, and the caulked end of the hollow pin is formed into a convex shape in at least part of the end portion.

Method of connecting two members using a pin

The invention provides a floating type brake disc which can absorb a shock applied to a hub from a rotor at a time of running on a punishing road, can improve a heat lowering performance and can widely reduce a number of parts. A brake disc () is constituted by a hub (), a rotor () and a ring spring (). A lot of protrusion portions () in a radial direction are provided along a peripheral direction in an inner peripheral edge portion of the rotor (), the same number of projection portions () in an axial direction are provided along the peripheral direction in an outer peripheral edge portion of the hub (), and the protrusion portions () are protruded to an inner side in the radial direction through a gap () between the projection portions (). The ring spring () is constituted by an open ring having an approximately L-shaped cross section. A line () in a radial direction of the ring spring is fitted and mounted to a groove () in an inner peripheral surface of the projection portion () of the hub protruding from the rotor, and an inner peripheral surface of a protrusion portion () in the rotor is pressed to an outer side in the radial direction by a line () in the axial direction of the ring spring.

Floating-type brake disk

An apparatus for holding a spring of a clutch has a guide plate which is disposed in an annular recessed portion on a rear side of a clutch plate. A coil spring circumferentially extends in contact with the guide plate. A retainer has a pair of end surface holding portions to contact both ends of the coil spring and a peripheral holding portion to contact a periphery of the coil spring. The guide plate and the retainer are mounted on the clutch plate. A connecting piece is continuously provided on each circumferential end of the guide plate such that the connecting pieces are fit onto the end surface holding portions of the retainer.

Apparatus for holding spring of clutch

Growing community of inventors

Shizuoka-ken, Japan

Shusuke Yamamoto