Patent ID: 8181750
Filing Date: 2012-05-22
Classification: F16D

Abstract:
1. A floating-disk type brake system for braking a rotating shaft disposed coaxially with a planetary gear, said floating-disk type brake system comprising: a fixing member for fixing one of a sun gear, a set of planet pinions and a ring gear included in the planetary gear so as to be unable to turn; a rotation transfer member for connecting an unfixed one of the sun gear, the set of planet pinions, and the ring gear with the rotating shaft so as to be driven by the rotating shaft; a driven member capable of rotating together with the other of the unfixed one of the sun gear, the set of planet pinions, and the ring gear; a first floating disk assembly disposed coaxially with the rotating shaft so as to be axially movable and to be turnable on the rotating shaft; a first disk assembly supported coaxially with the rotating shaft so as to be axially movable and to turn together with either of the rotation transfer member and the driven member; a second disk assembly supported coaxially with the rotating shaft so as to be axially movable; and a pushing member supported on the fixing member, and capable of axially pushing the first disk assembly, the first floating disk assembly, and the second disk assembly together toward the fixing member, the rotation transfer member or the driven member to bring the first disk assembly, the first floating disk assembly, and the second disk assembly into frictional contact with each other; wherein: the rotation transfer member is connected to the first floating disk assembly, the driven member is connected to the first disk assembly, the first disk assembly includes a first annular member having a disk shape and being brought into frictional engagement with the first floating disk assembly, and a second annular member having a disk shape and being brought into frictional engagement with a second disk, and the second disk assembly includes a third annular member having a disk shape and being supported by the pushing member, and a fourth annular member having a disk shape and being brought into frictional engagement with the first disk assembly.