초록 ▼

A belt drive including a toothed power transmission belt and toothed pulley or pulleys operating in conjunction and each having an improved tooth configuration. Each belt tooth as viewed in longitudinal cross-section includes stress relieving portions or fillets adjoining the opposite sides of the b

A belt drive including a toothed power transmission belt and toothed pulley or pulleys operating in conjunction and each having an improved tooth configuration. Each belt tooth as viewed in longitudinal cross-section includes stress relieving portions or fillets adjoining the opposite sides of the base of the tooth. Each fillet has an outer perimeter or outer surface area which is at least 30% of one half of the total outer perimeter or outer surface area of the belt tooth. The pulley in cross section includes an outermost portion having an arcuate outer perimeter formed by the arc of at least one circle whose center point lies within the pulley tooth with one half of the arcuate outer perimeter or outer surface area being at least 30% of one half of the total outer perimeter or outer surface area of the tooth.

대표청구항 ▼

A flexible power transmission belt having a plurality of flexible resilient teeth of uniform pitch length extending generally transversely thereof, each said tooth as viewed in longitudinal section comprising a base portion, an outermost portion spaced from said base portIon and having a cross secti

A flexible power transmission belt having a plurality of flexible resilient teeth of uniform pitch length extending generally transversely thereof, each said tooth as viewed in longitudinal section comprising a base portion, an outermost portion spaced from said base portIon and having a cross sectional dimension less than the cross sectional dimension of said base portion and opposite side portions extending from the ends of said base portion and converging inwardly to meet the ends of the outermost portion to thereby define the tooth profile, each said side portion including an integral stress-relieving portion adjoining the base portion, said stress-relieving portion having an outer perimeter which is at least 30% of one half of the total outer perimeter of said tooth.