| 摘要 |
A resistance generating device (1, 11, 21, 31, 41, 51) for a drive unit (100) of an opening and closing member (200) of a vehicle (150) includes a transmission member (2, 12, 22, 32, 52, 53, 54) transmitting a rotary motion to a rotary body (113), and a fixing member (3, 33) provided to form a clearance between the fixing member (3, 33) and the transmission member (2, 12, 22, 32, 52, 53, 54) in a radial direction of a rotary axis (X) of the transmission member (2, 12, 22, 32, 52, 53, 54). One of the fixing member (3, 33) and the transmission member (2, 12, 22, 32, 52, 53, 54) includes a magnet (3, 34) and the other includes a magnetic body (2, 6, 4, 33, 43, 55, 56). The magnet (3, 34) is disposed to face the magnetic body (2, 6, 14, 33, 43, 55, 56) so that the facing position facing each other is changed as the transmission member (2, 12, 22, 32, 52, 53, 54) rotates. The magnet is disposed to face the magnetic body (2, 6,14, 33, 43, 55, 56) so that magnetic poles at the facing position alternate as the transmission member (2, 12, 22, 32, 52, 53, 54) rotates. The magnetic body (2, 6, 14, 33, 43, 55, 56) and the magnet (3, 34) generate a magnetic force therebetween, the magnetic force generating a resistance against an opening and closing movement of the opening and closing member (200). |
