| 摘要 |
PURPOSE:To obtain an annular winding bundle with diameter larger than that of a spool so as to secure an annular bundle of large diameter by means of a spool of small diameter, by winding a linear body around a spool up to the predetermined length and subsequently folding back the rest of the linear body more than one time to reverse the direction of winding. CONSTITUTION:The first winding end 3 of an annular body 2 is fixed to the left end of a winding rod, such as a drum and the like, then a linear body 2 is wound spirally on a spool 1 rightward namely counterclockwise as seen from an arrow X side, and, after the medium part of the linear body 2 is guided round a pin 4, it is folded back and wound spirally leftward, namely clockwise to be guided round a pin 5 fitted in the vicinity of the first winding end 3. The similar winding is repeated as required between the pin 4 and 5 thereafter so that a bundle may be formed in final. When winding is finished, folding back parts 6, 7 of the bundle of the linear body 2 are removed from both pins 4, 5. Then, upon removal of the linear body 2 from the spool 1, the bundle of the linear body 2 of large diameter can be obtained from the spool of small diameter. |
