epicycloidal wheel
plural of poussin
A surname.
An extreme form of mania.
A device for producing straight-line motion from circular motion, on the principle that a pin fastened in the periphery of a gear wheel will describe a straight line when the wheel rolls around inside a fixed internal gear of twice its diameter.
振動を減らすため、技術者は摺動ガイドを、歯車の周縁に固定したピンが直径の2倍の固定内歯車の内側を転がることで回転運動を直線運動に変える装置に交換して、精密な直線移動を実現した。
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