Method and apparatus for manufacturing vehicle lamps
First Claim
1. A vehicle lamp manufacturing method for laser-beam welding a lens to a housing, comprising:
- disposing the lens onto the housing, wherein the lens comprises a laser beam transmitting portion provided around a full circumference of the lens and a welding portion of a lens provided around a full circumference of the lens, and wherein the housing comprises a welding portion provided around a full circumference of the housing;
pressing the lens with a press holding jig so as to bring the welding portion of the lens into abutment with the welding portion of the housing, wherein the press holding jig comprises a laser beam transmitting portion; and
emitting a laser beam to a location where the welding portion of the lens is in abutment with the welding portion of the housing, wherein 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 a part of the location.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
18 Claims
-
1. A vehicle lamp manufacturing method for laser-beam welding a lens to a housing, comprising:
-
disposing the lens onto the housing, wherein the lens comprises a laser beam transmitting portion provided around a full circumference of the lens and a welding portion of a lens provided around a full circumference of the lens, and wherein the housing comprises a welding portion provided around a full circumference of the housing;
pressing the lens with a press holding jig so as to bring the welding portion of the lens into abutment with the welding portion of the housing, wherein the press holding jig comprises a laser beam transmitting portion; and
emitting a laser beam to a location where the welding portion of the lens is in abutment with the welding portion of the housing, wherein 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 a part of the location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A vehicle lamp manufacturing apparatus for laser-beam welding a lens to a housing, comprising:
-
a press holding jig for bringing a laser beam transmitting portion and a welding portion of the lens into abutment with a welding portion of the housing, wherein the laser beam transmitting portion and the welding portion of the lens are provided around a full circumference of the lens, and the welding portion of the housing is provided around a full circumference of the housing, the press holding jig comprising a laser beam transmitting portion, wherein a laser beam is transmitted through the laser beam transmitting portion of the press holding jig and the laser beam transmitting portion of the lens when the laser beam is emitted to at least a part of a location where the welding portion of the lens is in abutment with the welding portion of the housing. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
Specification