JPH0485505U

JPH0485505U -

Info

Publication number: JPH0485505U
Application number: JP12670390U
Authority: JP
Priority date: 1990-11-30
Filing date: 1990-11-30
Publication date: 1992-07-24

Description

[Brief explanation of the drawing]

第１図Ａは第１の実施例における円筒状部材の
断面図、第１図Ｂは第２の実施例における円錐筒
状部材の断面図である。第２図Ａは前記第１の実
施例の断面図、第２図Ｂは同じく要部斜視図であ
る。第３図Ａは前記第２の実施例の断面図、第３
図Ｂは同じく要部斜視図である。第４図ないし第
７図はそれぞれ光軸調整装置の従来例を説明する
ための断面図である。１……ランプハウジング、２……光源バルブ、
３……前面レンズ、４……球継手、５……ナツト
部材、６……雄ネジ部材、７……凹面反射鏡、１
１……ランプハウジング、１５……ナツト部材、
１６……雄ネジ部材、１７……凹面反射鏡、１８
……円筒状部材、１８ａ……孔、１８ｂ……バー
リング加工部、１９……歯車、２０……円錐筒状
部材、２０ａ……孔、２０ｂ……バーリング加工
部、２１……歯車。 FIG. 1A is a sectional view of a cylindrical member in a first embodiment, and FIG. 1B is a sectional view of a conical cylindrical member in a second embodiment. FIG. 2A is a sectional view of the first embodiment, and FIG. 2B is a perspective view of the same essential parts. FIG. 3A is a sectional view of the second embodiment;
Figure B is also a perspective view of the main parts. 4 to 7 are sectional views for explaining conventional examples of optical axis adjustment devices, respectively. 1...Lamp housing, 2...Light source bulb,
3...Front lens, 4...Ball joint, 5...Nut member, 6...Male thread member, 7...Concave reflector, 1
1... Lamp housing, 15... Nut member,
16...Male thread member, 17...Concave reflector, 18
... Cylindrical member, 18a... Hole, 18b... Burring part, 19... Gear, 20... Conical cylindrical member, 20a... Hole, 20b... Burring part, 21... Gear.

Claims

[Claims for Utility Model Registration] In a vehicle lamp in which a concave reflector is provided in the lamp housing and a light source bulb is positioned near the focal point of the reflector, at least one of the lamp housing and the reflector is used in a vehicle. an optical axis configured to be tiltably supported with respect to a fixed member, a nut member attached to either one of the fixed members, and capable of threading the nut member by a male screw member screwed into the nut member; In the adjustment device, a member having a cylindrical portion or a conical cylindrical portion is fixed concentrically to the male threaded member, and
Holes are provided at equal intervals in the circumferential direction in the cylindrical portion or conical cylindrical portion, and the holes are burred and treated with a rust-preventing coating to transmit rotational force to the male threaded member. 1. An optical axis adjustment device for a vehicle lamp, characterized in that a gear is attached to the shaft, and the teeth of the gear are engaged with the hole.