Patent ID: 8597755
Filing Date: 2013-12-03
Classification: B29C,B29K,B29L,Y10T

Abstract:
1. A resin welded body where a first resin part that is absorbent with respect to laser light and a second resin part that is transparent with respect to laser light are fitted together and laser light is emitted to a predetermined position from the side of the second resin part to weld together the first and the second resin parts and form a joint portion between both resin parts, the joint portion being formed circumferentially and being provided at a tip of a rib, the resin welded body comprising: a seal member disposed on an inner side of the joint portion and pressed by the welding of the first and the second resin parts; and a projection provided on either the first or the second resin part, for regulating the sinking amount of one of the first and the second resin parts relative to the other one at the joint portion upon the welding, and regulating the crushed amount of the seal member due to the pressing, wherein the projection is disposed between the joint portion and the seal member, and wherein a positioning guide is provided between the rib and the projection.