MANUFACTURE OF WINDOW MOLDING FOR AUTOMOBILE

• Main Author: NAGAHASHI YUJI
• Format: Patent
• Language: English
• Published: 03.06.1994
• Edition: 5
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To enable continuous extrusion molding of a window molding which has a different sectional form depending on the existence of a dam part without causing deterioration of yield rate of a material and lowering of appearance quality. CONSTITUTION:A molding main body 3 having projections 2a, 2b for a dam projected on the lower side and a leg part 4 having a glass fitting groove 5 formed on one side and projections 2c, 2d for a dam projected on the upper side are molded by an extruder 8. Immediately after molding, the projections 2a, 2b and 2c, 2d for a dam are lapped each other, the lapping amount is changed by controlling a lower pressure-welding roller 14 disposed below an upper pressing roller 13 opposite thereto to be moved up and down, and the projections 2a, 2b and 2c, 2d for a dam are fused.