Patent ID: 6503352
Filing Date: 2003-01-07
Classification: B29C,Y10T

Abstract:
A welding method, comprising the steps of:(a) disposing (1) a first synthetic resin molded body having a first regulating projection and a first guide surface and a to-be welded end including a welding projection and (2) a second synthetic resin molded body with a joint area with the welding projection directed toward the joint area, and a second regulating projection and a second guide surface, wherein the welding projection has a cross-section substantially formed by two lines wherein the first line is inclined relative to a direction extended perpendicular to an intended joint area contact by a first predetermined angle (&agr;) and the second line is extended along said direction; and (b) vibration welding the first synthetic resin molded body to the second synthetic resin molded body such that burrs formed during the vibration welding are guided by the first and second guide surfaces toward an internal surface of the first and second regulating projections.