Patent ID: 8365881
Filing Date: 2013-02-05
Classification: B62L,F16D

Abstract:
1. A bicycle disk brake rotor apparatus comprising: a hub mounting member; a generally circular first rotor member; a generally circular first second rotor member; a generally circular second second rotor member; wherein the hub mounting member has greater thermal conductivity than the first second rotor member and the second second rotor member; wherein the first second rotor member is formed of a material having greater braking wear resistance than the first rotor member; wherein the second second rotor member is formed of a material having greater braking wear resistance than the first rotor member; wherein the first rotor member is pressure welded to and disposed between the first second rotor member and the second second rotor member; and a plurality of first fixing components extending circumferentially around the first rotor member and structured to mount the first rotor member to the hub mounting member; a plurality of first fixing components extending circumferentially around the first second rotor member and structured to mount the first second rotor member to the hub mounting member; and a plurality of second fixing components extending circumferentially around the second second rotor member and structured to mount the second second rotor member to the hub mounting member; wherein each of the plurality of first fixing components on the first rotor member aligns with corresponding ones of the plurality of first fixing components on the first second rotor member and the plurality of second fixing components on the second second rotor member; wherein at least a majority of the disk brake rotor apparatus between outermost lateral side surfaces of the first rotor member, the first second rotor member and the second second rotor member at correspondingly same radial and circumferential locations thereof is free of voids; a plurality of fasteners that fasten the hub mounting member to the plurality of first fixing components on the first rotor member, to the plurality of first fixing components on the first second rotor member, and to the plurality of second fixing components on the second second rotor member so that the first rotor member, the first second rotor member and the second second rotor member are sandwiched between the plurality of fasteners and the hub mounting member and so that the first second rotor member and the second second rotor member are pressed towards the first rotor member with a compressive force by the plurality of fasteners and the hub mounting member to prevent delamination of the first rotor member, the first second rotor member and the second second rotor member from each other; and wherein the hub mounting member comprises: wherein the first rotor member, the first second rotor member and the second second rotor member each comprises a ring-shaped member, and wherein the plurality of first fixing components on the first rotor member, the plurality of first fixing components on the first second rotor member, and the plurality of second fixing components on the second second rotor member extend radially inwardly from an inner peripheral surface of their respective first rotor member, first second rotor member and second second rotor member.