Toothed belt transmission

Details Toothed belt transmission Toothed belt transmission

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 7/02 (2006.01) F16G 1/28 (2006.01) F16H 55/17 (2006.01)

Patent

CA 2416640

A toothed belt transmission is provided in which a toothed belt is trained around drive and driven pulleys. Each toothed pulley has a circumferential periphery formed with a plurality of teeth. Adjacent teeth are assigned as a first tooth portion and a second tooth portion. Respective tooth portions have arcuate portions at corners defined between tooth edges and tooth surfaces. A line touching the arcuate portions of the first and second tooth portions is assigned as a common tangential line. A line passing over a starting point of the arcuate portion of the tooth edge of the first tooth is assigned as a first tangential line. An angle between the common tangential line and the first tangential line falls in a range between 6° and 14.4°.

La description concerne une transmission à courroie crantée dans laquelle une courroie crantée est entraînée autour de poulies d'entraînement. Chaque poulie crantée est caractérisée par une périphérie circonférentielle constituée de plusieurs crans. Les crans adjacents appartiennent à une première denture et à une seconde denture. Les dentures respectives comportent des parties arquées aux angles formés entre des pointes de cran et des flancs de cran. Une ligne touchant les parties arquées des première et deuxième dentures constitue une ligne tangentielle commune. Une ligne passant sur un point de départ de la partie arquée du tranchant de la première dent constitue une première ligne tangentielle. L'angle formé entre la ligne tangentielle commune et la première ligne tangentielle varie entre 6 et 14,4°.

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