Patent ID: 9400029
Filing Date: 2016-07-26
CPC Classification: B63H,F16F,Y10T

Claim Text:
1. A damper unit for a vessel propulsion apparatus that transmits a torque between an input member and an output member, the input member and the output member being disposed on a transmission path in which a rotation of a prime mover is transmitted to a plurality of blades, and that absorbs a vibration between the input member and the output member, the damper unit comprising: a first damper arranged to transmit a first torque around a rotation axis, the first torque being transmitted from an input member side, to an output member side; an intermediate member arranged to transmit a second torque around the rotation axis, the second torque being transmitted from the first damper to the output member side; and a second damper arranged to transmit a third torque around the rotation axis, the third torque being transmitted from the intermediate member to the output member side, and at least a portion of the second damper is disposed on a straight line that passes through the first damper and is parallel or substantially parallel to the rotation axis; wherein one of the first damper and the second damper is surrounded by the intermediate member and the other of the first damper and the second damper surrounds the intermediate member.