| 摘要 |
<p>A bobbin holder of a thread winder, comprising a holder main body, a bobbin holding operation body, elastic bodies deforming according to the movement of the bobbin holding operation body, spacers maintaining the elastic bodies at specified intervals and transmitting the motion of the bobbin holding operation body to the elastic bodies, and a cylindrical supporting body installed on a turret member and supporting a drive shaft rotatably, the holder main body further comprising a boss part for the connection with the drive shaft and a hollow part storing the bobbin holding operation body and cylindrical supporting body on both sides of a boss part, the boss part further comprising an annular projected part projected toward the inside of the hollow part, and a portion where the amount of increase in inner diameter (d1) of the boss part and the amount of increase in outer diameter (d2) of the drive shaft due to a centrifugal force at the time of rotation satisfy the relation, (d1) - (d2) ∫ 20νm, is provided at least one position on the boss part.</p> |
