Beaded guide roller

Details Beaded guide roller Beaded guide roller

1995-05-02

1997-01-14

Schoeppel, Roger J.

Endless belt power transmission systems or components

Friction drive pulley or guide roll

Pulley or guide roll including circumferential...

474189, 474190, F16H 5536

Patent

active

055933661

ABSTRACT:
To reduce the generation of noise in a belt drive for auxiliary units in an internal combustion engine, a guide roller for the belt has an approximately cylindrical surface formed with a bead which extends along the surface in a direction oblique to the side surfaces of the guide roller. The resulting variation in the location of the bead with respect to a drive belt engaging the guide roller surface causes the unsupported vibratable length of the belt to vary according to the location of the contact point of the belt with the bead, which varies as the roller rotates. This produces a variation in the natural frequencies of tensile strands in the drive belt, which reduce the sympathetic vibrations of the belt and hence the propagation of noise through the guide roller.

REFERENCES:
patent: 1095445 (1914-05-01), Alvey
patent: 1568401 (1926-01-01), Griffith
patent: 1660538 (1928-02-01), Whitney
patent: 3430506 (1969-03-01), Stone
patent: 3713348 (1973-01-01), Conrad et al.
patent: 3860780 (1975-01-01), Conrad

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