Patent ID: 7338108
Filing Date: 2008-03-04
Classification: B29C,B29L,B60J

Abstract:
1. A method of manufacturing a sun visor for vehicles, wherein the sun visor has a sun visor body, a first and a second body parts that are joined together to form an outward form of the sun visor body in part or in entirety, a first weld region that includes a first weld formed on the first body part and a first weld formed on the second body part, a second weld region that includes a second weld formed on the first body part and a second weld formed on the second body part, comprising steps of: welding the first welds formed respectively on the first and second body parts to each other by vibration before the second welds formed respectively on the first and second body parts contact to each other, welding the second welds on the first and second body parts to each other by vibration as the first welds are being welded together by vibration and at this time, the first welds receive a welding pressure that acts between the first and second body parts, thereby controlling a welding pressure that acts upon the second welds during vibration welding.