| 摘要 |
<p>The adjuster has two toothed crown wheels (3,4) of the same inner circumference, but with a different number of teeth. One of the wheels is fixed rotationally. Both wheels are coaxial and each is fixed to one of the seat parts. There is an oval cam (20) turning on the crown wheel axis and a third flexible toothed part around.it engages between the teeth of the two crown wheels. of the cam turns the crown wheels by different angular amounts. The moving wheel has two more teeth than the other.</p> |
