| 摘要 |
<p>Disclosed is a damper device provided with a first rotating body (2) which is connected to an engine; a second rotating body (3) which is connected to a driven body that is driven by the power generated by the engine and is capable of rotating mutually relative to the first rotating body (2); and a coil spring (4) which transmits power between the first rotating body (2) and the second rotating body (3), and absorbs torque variations between the first rotating body (2) and the second rotating body (3). The coil spring (4) is such that in a cross-sectional shape view in a plane which includes the centerline (CL) of the coil spring (4), hollow sections (43) which are inner regions have lower stiffness and lower density than outer shell regions (42) which are outer regions. Therefore, it is possible to reduce the effect of centrifugal force.</p> |
