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Vehicular lamp and method of manufacturing same
| Details |
Inventors: Matsunaga, Chiharu; Suzuki, Michihiko; Sugiyama, Fujihiko; Yamazaki, Kazuhiro;
Assignee: Koito Manufacturing Co., Ltd. (Shizuoka, JP)
Primary Examiner: O'Shea; Sandra
Assistant Examiner: Cranson, Jr.; James W
Attorney, Agent or Firm: Osha Liang LLP
A vehicular lamp includes a lamp source, a lamp body accommodating the lamp source, and a lens attached to the lamp body. The lamp body has an abutment surface on the top portion of a peripheral wall, which is configured to rise in a direction of an optical axis of the light source along a peripheral edge of the lamp body. The abutment surface of the lamp body is configured to incline to the optical axis. Similary, the lens has an abutment surface corresponding to the abutment surface of the lamp body along a peripheral portion of the lens. In this case, the abutment surface of the lens is configured within the dimention of an outer surface of the lens so as not to protrude over the outer surface. The abutment surfaces of the lamp body and the lens are integrally jointed together by laser walding. |
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DETAILED DESCRIPTION In the preferred embodiment of the present invention, the lens includes a seal leg portion with a substantially uniform thickness which extends in a direction where the lamp body and the lens are brought into abutment along an edge portion of the lens, and an end surface of the seal leg portion serves as the abutment surface.
The abutment surface may be formed within a range of the thickness of the seal leg portion.
Thus, the aesthetic appearance of the lamp improves.
Further, the lamp body includes a tapered flange portion, which protrudes outward along the outer surface thereof, configured to gradually reduce its thickness as it goes outward, and a top surface of the flange portion serves as the abutment surface.
Advantageously, the flange portion allows abutting performance between both to be enhanced upon deformation of the flange portion causing by abutment of the lens on the lamp body, and accordingly, the welding performance improves.
An embodiment of the present invention will be described with reference to the drawings.
FIG.
1 is a partially exploded schematic view of this embodiment applied the present invention to a tail lamp for a vehicle, in particular, a rear combination lamp RCL, which is integrated with a tail/stop lamp TSL and a back-up lamp.
FIG.
2 is a sectional view along A--A line of the rear combination lamp RCL in assembling.
A lamp body 1 is formed in a housing-like shape with a back surface 11 and a peripheral wall portion 12 that extends along the peripheral edge thereof, and made from ASA (acrylonitrile styrene acrylic rubber) containing a laser beam absorbing material such as a carbon black by a resin molding.
A wall-like shade 13 is formed on an inner surface of the back surface 11 of the lamp body 1, by which the tail/stop lamp TSL and the back-up lamp BUL are partitioned.
Each of the inner surfaces of the back surface 11 and the peripheral wall portion 12 is treated with an aluminum evaporation.
A predetermined portion of the peripheral wall portion 12, i
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Light Fixtures 
