Patent ID: 9461532
Filing Date: 2016-10-04
CPC Classification: E05F,E05Y,F16D,H02K

Claim Text:
1. A resistance generating device for a drive unit opening and closing an opening and closing member of a vehicle, comprising: a rotary body being rotated for opening and closing the opening and closing member; a transmission member being rotated in response to an applied power, the transmission member transmitting a rotary motion to the rotary body; and a fixing member provided to form a clearance between the fixing member and the transmission member in a radial direction of a rotary axis of the transmission member, the fixing member surrounding a periphery of the transmission member; wherein one of the fixing member and the transmission member includes a magnet and the other of the fixing member and the transmission member includes a magnetic body; the magnet is disposed to face the magnetic body so that a facing position of the magnet and the magnetic body facing each other is changed as the transmission member rotates; the magnet is disposed to face the magnetic body so that magnetic poles at the facing position of the magnet and the magnetic body alternate as the transmission member rotates; the magnetic body and the magnet generate a magnetic force therebetween, the magnetic force generating a resistance against an opening and closing movement of the opening and closing member; and the transmission member is connected to a reduction gear and receives a drive force of a motor via the reduction gear.