Patent ID: 6234288
Filing Date: 2001-05-22
Classification: F16D,F16F

Abstract:
Apparatus for transmitting torque, comprising: input and output members rotatable with as well as relative to each other about a common axis; and means for opposing rotation of said members relative to each other, including at least one damper having at least one coil spring and said at least one coil spring having end convolutions and additional convolutions between said end convolutions, said end convolutions and said additional convolutions respectively having first and second pitches which at least approximate each other in an at least substantially unstressed condition of said at least one coil spring, said end convolutions being devoid of faces substantially normal to an axis of said at least one coil spring, said input member engaging at least one of said end convolutions and being configurated to transmit to said at least one end convolution torque in response to rotation of said members relative to each other, said output member being arranged to transmit torque from said at least one coil spring to a further member in response to said rotation of said input and output members relative to each other.