| 摘要 |
PURPOSE:In a system for winding string over a spherical member such as a core of golf ball, to improve the workability and the yield by providing a cylinder for supporting the top roller in parallel with a cylinder for moving the top roller up and down. CONSTITUTION:String rubber 29 is wound over a rubber core set between a pair of bottom rollers 21, 21 and supporting top roller 26 and guide top roller 27 arranged above to produce a core ball 28. Here, a supporting board 25 is secured horizontally by the piston rod 24 in main cylinder system 22 secured on the foundation while both top rollers 26, 27 are pivoted with interval on the lower face. While a sub-cylinder system 30 is fixed in parallel with main cylinder system 22 through a coupling member 33 to secure the tip of piston rod 34 to the upper face of the supporting board 25. Consequently, the function of both cylinder systems 22, 30 will enable smooth up/down motion of the supporting board 25. |
