| 摘要 |
PROBLEM TO BE SOLVED: To prevent the deformation of a molding by setting the sectional area of an upper edge rain gutter smaller than that of a side edge rain gutter, and linearly protruding and recessing a slide core to a molding space. SOLUTION: An upper edge molding 11A is connected to a side edge molding 11B so that an upper edge rain gutter 15 is continued to a side edge rain gutter 19. The upper edge rain gutter 15 and the side edge rain gutter 19 have mutually similar substantially V-shaped sections, and the sectional area (a) of the upper edge rain gutter 15 is set smaller than the sectional area (b) of the side edge rain gutter 19. Since the upper edge rain gutter 15 and the side edge rain gutter 19 have the similar sectional forms, a second slide core may be linearly protruded and recessed to the molding space in the extrusion molding of a molding 11, whereby the change of the flow of the resin extruded from the molding space can be more moderated. |
