Patent ID: 7345258
Filing Date: 2008-03-18
Classification: B23K,B29C,B29L,F21S,F21V

Abstract:
1. Beam welding apparatus for welding a housing and transparent cover of a vehicular lighting device via beam welding, said apparatus comprising: a cover fixing jig comprising a beam transmitting part, configured to fix a position of a transparent cover and configured to press the transparent cover toward a housing with a welding part of the transparent cover overlaid on a welding part of the housing while it is arranged on the transparent cover; and a beam irradiating part configured to irradiate beams onto the welding part of the housing through the beam transmitting part and the transparent cover to excite and heat the welding part of the housing; wherein said beam transmitting part comprises a shielding part configured to shield unnecessary luminous flux among the beams irradiated toward the welding part of the housing from the beam irradiating part.