Power transmission device

Details Power transmission device Power transmission device

2011-08-09

2011-08-09

Mansen, Michael R (Department: 3654)

Endless belt power transmission systems or components

Friction drive pulley or guide roll

Including plural, coaxial, circumferential belt-receiving...

C474S070000, C474S199000, C474S161000, C474S094000

Reexamination Certificate

active

07993228

ABSTRACT:
A power transmission device includes a pulley1and a hub2having an inner hub21, a rubber damper22and an outer hub23. A hub side engagement portion24formed of an elastic material and arranged either one, or both, of inner peripheral surface and outer peripheral surface of the outer hub engages with a pulley side engagement portion12, arranged at a position corresponding to the outer hub, of the pulley in concavo-convex fitting to thereby constitute a torque transmission structure between the hub and the pulley. The hub side engagement portion and the pulley side engagement portion have a concavo-convex outer shape and mesh with each other.

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