GUIDE RAIL MADE FROM INJECTION-MOLDED PLASTIC FOR REMOVING RATTLING NOISE DUE TO EXCELLENT SLIDING PROPERTIES OF THERMOPLASTIC AND ELIMINATING A MOVABLE CORE FOR AN INJECTION MOLDING TOOL

摘要

PURPOSE: A guide rail made from injection-molded plastic is provided to remove a movable core for forming a guide groove by an injection molding tool by firmly fixing the core on a web forming a slot. CONSTITUTION: A guide rail(16) made from injection-molded plastic for a window blind of a vehicle comprises an outer portion(41) injection-molded from elastically deformable materials and composed of an under cut guide groove(27) extended over at least a portion of the outer length and a first connection unit(51,53), and a support unit(42) made from a material which is strained less than the outer portion and composed of a second connection unit(59,61) coupled to the first connection unit. The outer portion has mainly predetermined thickness of a wall. The outer portion is formed like a narrow rectangle basically following the progress of the guide groove.