| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic damper which can form a moving track of the gravity center of an inertia mass body into a pseudo cycloid curve by a simple constitution. SOLUTION: In the dynamic damper 1 in which the inertia mass body 4 reciprocating in the rotation direction accompanied by the twist vibration of a rotating member 2 is stored into a storage chamber 3 formed at the rotating member 2, and a rolling face 9 on which the inertia mass body 4 rollingly reciprocates is formed at the internal peripheral face of the storage chamber 3, a plurality of the rolling faces 9, 10 different in curvature are formed at the internal peripheral face of the storage chamber 3, and the inertia mass body 4 has a plurality of circular faces 7, 8 corresponding to the plurality of rolling faces 9, 10 and different in curvature so that the inertia mass body may gradually be transited to the other rolling face 10 different in curvature from the rolling face 9 which has rolled, and an instantaneous curvature center at the moving trace of the reciprocation movement of the inertia mass body may gradually be changed accompanied by an increase of the amplitude of the inertia mass body 4 when reciprocating according to the twist vibration of the rotating member 2. COPYRIGHT: (C)2012,JPO&INPIT |
