PURPOSE: To make possible a quick bending of a resin tube by means of mere rotation of a cam shaft by a method wherein an operative block body having a cam groove downward is given oscillation and vertical motion by a plurality of cam disks fitted to the cam groove.
CONSTITUTION: The vertical parts of cam disks 78AWF are let to correspond to operative block bodies 76AWF and parts of a rubber mold 19 having a molded resin tube on the inner circumferential surface are held by all of concave block bodies 72AWF kept at a horizontal state. In other words, the rubber mold 19 is supported by the concave surfaces of the concave block bodies 72CWF and is engaged with side fixtures 24, 23 through the concave surfaces of the concave block bodies 72A, B. A motor 69 is driven to rotate cam grooves 77AWF through a cam shaft 68. As the deformed parts of cam disks 78AWF gradually operate to the cam grooves 77AWF, the concave block bodies 72AWF deform and the rubber tube 19 and its inner resin tube are deformed. After the deformation other subsequent processes such as curing and the like are carried out.
NISHINO YOSHINORI
KOMURA AKIO
EBISU TOMIO
