Drive belt pulley and belt drive system

Endless belt power transmission systems or components – Friction drive pulley or guide roll – With stationary support for pulley or guide roll

Reexamination Certificate

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Details

C474S118000, C474S139000

Reexamination Certificate

active

07419448

ABSTRACT:
A hollow cylindrical pulley body5is carried rotatably by a hollow cylindrical shaft member11. A support rod8is inserted in the shaft member11to support the shaft member11for rocking motion about a pivot axis C2orthogonal to the shaft member11. The pivot axis C2is inclined backward in the direction of belt travel with respect to the direction of load on the shaft member11. With this configuration, when the drive belt3deviates to one side, the pulley body5is immediately angularly moved so that it is inclined with a level difference with respect to the direction of load on the shaft member11and is positioned obliquely relative to the drive belt3, thereby producing a force of returning the drive belt3to its normal position.

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Specification and Drawings for U.S. Appl. No. 10/875,296 filed Jun. 25, 2004.
European Search Report dated Nov. 16, 2004 for Application No. EP 04 02 2536.

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