Power transmission device

Details Power transmission device Power transmission device

2006-05-09

2006-05-09

Binda, Greg (Department: 3679)

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Overload release coupling

Torque transmitted via frangible element

C417S319000

Reexamination Certificate

active

07040989

ABSTRACT:
A power transmission device which interrupts torque transmission when the torque exceeds a predetermined torque. A torque limiter includes projections formed on a center hub and a pulley. The center hub includes bridges that transmit torque by a pulling force. When a preset torque limit is reached, the projections on the center hub make contact with and move along slanted faces so as to move the center hub in an axial direction relative to the pulley. The bridges are thereby subjected to a bending moment in addition to the pulling force when the torque exceeds the preset torque level, so that the bridges break precisely above the preset torque level due to the reduced fatigue limit.

REFERENCES:
patent: 1040980 (1912-10-01), Haney
patent: 2566690 (1951-09-01), Wright
patent: 3359171 (1967-12-01), Hanke
patent: 3424263 (1969-01-01), Black
patent: 4219286 (1980-08-01), Lindenthal
patent: 5800137 (1998-09-01), Eitai et al.
patent: 6332842 (2001-12-01), Tabuchi et al.
patent: A-8-319945 (1996-12-01), None

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