Damper device

摘要

A damper device comprises: a first shaft that outputs rotational power from a power source; a second shaft that transmits rotational power to a gear mechanism and has outer splines; a first rotational member(s) to which the rotational power of the first shaft is transmitted; a second rotational member spline-engaged with the outer splines; a damper unit that absorbs torque fluctuation between the first and second rotational members; and an inertial body having inner splines spline-engaged with the outer splines and having an annular portion. The tooth parts of the inner splines are pressed into contact with the tooth parts of the outer splines in the circumferential direction of the inertial body.

主权项

1. A damper device comprising:
a first shaft that outputs rotational power of a power source; a second shaft that transmits the rotational power to a gear mechanism and includes outer splines; a first rotational member(s) to which the rotational power of the first shaft is transmitted; a second rotational member connected by splined engagement with the outer splines; a damper unit that absorbs torque fluctuations between the first rotational member(s) and the second rotational member; an inertial body having inner splines for connection by splined engagement with the outer splines and having a substantially annular portion; wherein tooth parts of one of the outer splines and the inner splines are pressure-contacted with tooth parts of the other of the inner splines and the outer splines, in a circumferential direction of the inertial body; and wherein the inertial body includes, as the inner splines, first inner splines connected by splined engagement with the outer splines and second inner splines connected by splined engagement with the outer splines at a location spaced a pre-set distance from the first inner splines in an axial direction of the second shaft; the tooth parts of the first inner splines being phase-shifted relative to the tooth parts of the second inner splines; and the tooth parts of the outer splines being pressure-contacted with the tooth parts of the first inner splines and the tooth parts of the second inner splines in the circumferential direction of the inertial body.