Title:
車輌用灯具の製造方法及び車輌用灯具の製造装置。
Document Type and Number:
Japanese Patent JP4553296
Kind Code:
B2
Abstract:
A vehicle lamp is provided with a lens and a housing. The housing is opened in a front side thereof. The lens is fixed to the housing by laser-beam welding so that the lens covers the front side opening of the housing. The lens is fixed to the housing by bringing the lens, around a full circumference of which laser beam transmitting portions and welding portions are formed, into abutment with the housing, around a full circumference of which a welding portions is formed. The lens is pressed by a press holding jig having a laser beam transmitting portion so as to bring the welding portions of the lens into abutment with the welding portions of the housing. A laser beam is emitted to at least a part of a location where the welding portions of the lens are in abutment with the welding portions of the housing. The laser beam is transmitted through the laser beam transmitting portion of the press holding jig and the laser beam transmitting portion of the lens to at least part of the location. In a segment where the part of the location continues, a sum of a thickness of the laser beam transmitting portion of the press holding jig and a thickness of the laser beam transmitting portion of the lens remains substantially constant in a direction in which the laser beam is scanned.
Inventors:
Masahiro Enoki
Sugiyama Fujihiko
Ryosuke Yasuda
Mountain Saki Ichihiro
Sugiyama Fujihiko
Ryosuke Yasuda
Mountain Saki Ichihiro
Application Number:
JP2004185466A
Publication Date:
September 29, 2010
Filing Date:
June 23, 2004
Export Citation:
Assignee:
Koito Manufacturing Co., Ltd.
International Classes:
F21S8/10; B23K26/32; B23K37/04; B29C65/16; F21S41/00; F21S43/00; F21S45/00; F21V5/00; F21V17/00; F21V17/16; F21W103/00; F21W104/00; F21W105/00; F21Y101/00
Domestic Patent References:
| JP2001243811A | ||||
| JP2004349123A | ||||
| JP2003276087A |
Attorney, Agent or Firm:
Masanobu Iwata