| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce thrust force to a toothed belt wound on a toothed pulley.SOLUTION: A toothed belt 4A includes a tooth 41 having a torsion angleβ1, and a tooth 42 having a torsion angleβ2. The torsion anglesβ1 andβ2 have torsional directions opposite to each other when observed in a directionζr directing to dedenda from addenda of the teeth 41 and 42. Thus when the toothed belt 4A is wound on a toothed pulley engaged with the toothed belt 4A, thrust force received by the tooth 41 and thrust force received by the tooth 42 act in the directions opposite to each other. Thus the thrust force received by the toothed belt 4A is reduced.</p> |
