| 摘要 |
PURPOSE: To produce a resin roller good in dimensional accuracy and surface finish with excellent productivity by a hollow injection molding method. CONSTITUTION: In a method for producing a resin roller having a hollow part 4 by a hollow injection molding method using a mold having a gate 2 into which a molten resin is injected arranged thereto in the direction right-angled to an axial line, a hollow part forming fluid used in the hollow injection molding method is introduced into the molten resin through the gate 2 and the gate 2 is provided to the recessed part depressed toward the axial line direction from the surface of a molded product. |
