| 摘要 |
PURPOSE:To exhibit a strength and a driving force which can not be obtained by a motive power delivered by arranging a single screw shaft provided within a central shaft, by plurality of screw shafts outside the central shaft and converting a rotating force of a rotative driving means to an up-and-down motion. CONSTITUTION:When a spline shaft 2 is rotated, this rotating force is transmitted to a screw shaft 4 through a spline sleeve 31, a central gear 3, a gear 41. A sleeve 51 and a rod end 5 being connected with this screw shaft 4 are lowered along the screw shaft 4 by the rotation of this screw shaft 4. An upper ring 7 being connected with the upper end of a central rod is accordingly lowered. Following lowering of the upper ring 7, a top force 14 is lowered by means of a driving means and the vulcanization molding is carried out under a specified pressure and heat by supplying a hot fluid such as steam and the like through an internal pipe 52 and a path 53. |
