| 摘要 |
PURPOSE:To obtain a gear bobbin which neither idle nor backlash by rotating a drive gear and the bobbin gear smoothly while meshing. CONSTITUTION:Annular grooves 6 are made concentrically in the outer faces of circular flanges 4, 9 provided at the opposite ends. A pair of guide pins 11 extending in parallel with the axis 13 of a drive gear 12 are received, at the forward ends thereof, in the annular grooves and slid thus guiding the rotation of a gear bobbin 1 while clamping. |
