Power transmission device and torque transmission member

Details Power transmission device and torque transmission member Power transmission device and torque transmission member

2006-05-23

2006-05-23

Charles, Marcus (Department: 3682)

Endless belt power transmission systems or components

Resilient connection between pulley or guide-roll rim and mount

C474S070000, C074S574400, C464S073000, C464S074000

Reexamination Certificate

active

07048661

ABSTRACT:
A power transmission device for transmitting torque of a driving unit to a driven unit includes a first rotator, a second rotator, and a torque transmission member. The first rotator is to be driven for rotation by the driving unit. The second rotator is coupled to the driven unit. The torque transmission member is made of an elastically deformable material for making contact with the first rotator and the second rotator to transmit torque from the first rotator to the second rotator. An outer periphery of the torque transmission member includes a contact surface for making contact with the rotators and a non-contact surface out of contact with the rotators. The non-contact surface is provided with an oxygen permeance suppression layer made of a material having an oxygen permeability that is less than that of the contact surface.

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