| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a winding bobbin in which no optical fiber is caught in the slit of a flange between an auxiliary winding drum and a main winding drum nor floated from the surface of the main winding drum, in a transferring operation of taking up the optical fiber from the auxiliary winding drum to the main winding drum of the bobbin. <P>SOLUTION: The bobbin for winding an optical fiber is structured such that a flange 2 is provided on the left and right of the cylindrical main winding drum 1, with an auxiliary winding drum 3 installed on the outside of one of the flanges 2, and that a slit 2c in the radial direction is provided in the flange 2 between the main winding drum 1 and the auxiliary winding drum. 3. The slit 2c in the radial direction is flared in the slit width from the outer periphery to the inner periphery of the flange 2 and also provided with a beveling in a shape opening from the main winding drum 1 toward the auxiliary winding drum 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
