Automobile windshield molding method

A method of producing an elongate automobile windshield molding by extrusion molding the windshield molding using a first die having a decorative molding section for extrusion molding of a decorative section, a second die having an installation molding section for extrusion molding of an installation section which supports the decorative section, and a third die for dividing an extrusion molding section, formed by superposing the first die and the second die with each other, into a different form after having entered from a prescribed direction into the extrusion molding section, the method comprising the steps of:

• performing extrusion molding while selectively changing an opening form of the extrusion molding section by moving said first die and second die relative to one another in a direction crossing at right angles to an extruding direction and at the same time entering the third die into an extrusion area of an extensible area of the extrusion molding section when the first die and second die have separated from each other;
• employing a first extrusion process to perform extrusion molding on the molding having the decorative section and the installation section of predetermined cross-sectional shape after forming a predetermined form of the extrusion molding section and at the same time supplying metallic lacy body to said predetermined form of the extrusion molding section by maintaining the decorative molding section and the installation molding section of said first die and second die in an adjacent condition;
• employing a second extrusion process to perform extrusion molding on the molding while extending the extrusion molding section form, maintaining the cross-sectional shape of the decorative section and changing the cross-sectional shape of the installation section which includes the metallic lacy body by separating the decorative molding section from the installation molding section of said first die and second die;
• employing a third extrusion process which includes a divided extrusion molding on the molding to form a different form of extrusion molding section formed in the first extruding process and maintaining the decorative section in said predetermined cross-sectional shape, and also separating the installation section extruded from the installation molding section of said second die together with the metallic lacy body by entering said third die into an extensible area of the extrusion molding section formed after having separated the decorative molding section and the installation molding section of said first die and second die by a prescribed interval;
• and
• using a cutting process to remove the installation section containing the metallic lacy body separated by means of said third die as an unnecessary part.