F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/223
F16H 9/20 (2006.01)
Patent
CA 1247401
Abstract of the Disclosure A variable speed power transmission belt drive apparatus wherein a pair of asymmetric cross section drive belts are utilized in conjunc- tion with complementary sheaves, including a pair of axially adjustably spaced outer sheaves and an intermediate sheave. The outwardly facing side faces of the intermediate sheave are substan- tially planar and substantially perpendicular to the axis of the shaft on which the pulley is mounted. The inwardly facing surfaces of the outer sheaves are conical and the side surfaces of the belts are complementary to the confronting faces of the sheaves. Fluid pressure structure is provided for applying substantially equal forces to the speed-adjusting sheaves in effect- ing the speed-adjusting operation. In the illus- trated embodiment, the angled surfaces of the belts and outer sheaves extend at an angle in the range of approximately 5° to 30° to the flat center plane of the belts, and the complementary outer surfaces of the intermediate sheave and confronting, substantially planar surfaces of the belts extend at an angle in the range of approximately 0° to 5° to the center plane of the belts.
498690
Senoo Takahiro
Tomiyori Takashi
Meredith & Finlayson
Mitsuboshi Belting Ltd.
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