F - Mech Eng,Light,Heat,Weapons – 16 – G
Patent
F - Mech Eng,Light,Heat,Weapons
16
G
26/158, 74/246
F16G 1/21 (2006.01)
Patent
CA 1213756
TITLE OF THE INVENTION: ENDLESS POWER TRANSMISSION BELT CONSTRUCTION AND METHOD OF MAKING SAME ABSTRACT OF THE DISCLOSURE: Endless power transmission belt constructions having power transmitting contact faces, and methods of making the same, are provided. The belt constructions comprise an axial tensioning unit, a plurality of lateral stiffening units which are carried by the ten- sioning unit, and friction material carried by at least one of the tensioning unit and stiffening units. The tensioning unit and the stiffening units are formed of polymeric material that provides an axial and lateral stiffness in excess of that normally provided by poly- meric friction material that normally forms the main body of a belt construction that is reinforced with such a tensioning unit and stiffening units. The stiff- ening units and the tensioning unit may be formed of the same material, and may comprise a one-piece con- struction. Pursuant to one inventive proposal, the friction material is located only at the contact faces of the belt construction, and thereby defines only the contact faces of the belt construction, while the tensioning and stiffening units define all other exposed areas of the belt construction. Pursuant to another inventive proposal, the friction material has a first portion thereof disposed on the units to define the contact faces thereof, and has a remaining portion thereof disposed on the units to at least assist in securing the first portion to the units . The thickness of the first portion of the friction material is rela- tively thin, and the thickness of the remaining por- tion is no thicker than the thickness of the first portion, whereby a substantially large amount of the belt construction comprises the material of the units, and a substantially small amount of the belt construc- tion comprises the friction material.
455639
Dayco Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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