Brakes – Vehicle – Hub or disk
Reexamination Certificate
2008-05-20
2008-05-20
Williams, Thomas (Department: 3683)
Brakes
Vehicle
Hub or disk
C188S2180XL
Reexamination Certificate
active
07374023
ABSTRACT:
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 (1) is constituted by a hub (20), a rotor (10) and a ring spring (30). A lot of protrusion portions (11) in a radial direction are provided along a peripheral direction in an inner peripheral edge portion of the rotor (10), the same number of projection portions (21) in an axial direction are provided along the peripheral direction in an outer peripheral edge portion of the hub (20), and the protrusion portions (11) are protruded to an inner side in the radial direction through a gap (22) between the projection portions (21). The ring spring (30) is constituted by an open ring having an approximately L-shaped cross section. A line (30b) in a radial direction of the ring spring is fitted and mounted to a groove (23) in an inner peripheral surface of the projection portion (21) of the hub protruding from the rotor, and an inner peripheral surface of a protrusion portion (12) in the rotor is pressed to an outer side in the radial direction by a line (30a) in the axial direction of the ring spring.
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Arent & Fox LLP
Williams Thomas
Yutaka Giken Co. Ltd.
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