JPS6034030U

JPS6034030U - Headlamp optical axis adjustment device

Info

Publication number: JPS6034030U
Application number: JP12616483U
Authority: JP
Inventors: 伊倉　献吉
Original assignee: 市光工業株式会社
Priority date: 1983-08-16
Filing date: 1983-08-16
Publication date: 1985-03-08

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図及び第２図は本考案のヘッドランプの光軸調整装
置の１実施例を備えたヘッドランプを示し、第１図は正
面図、第２図は側面図である。第３図乃至第７図は本考
案のヘッドランプの光軸調整装置の１実施例を示し、第
３図は部分断面図、第４図は第３図のＡ−Ａ断面図、第
５図は前、後）進駆動部付近の分解斜視図、第６図はフェライトコアの
駆動部付近の分解斜視図、第７図は駆動制御部分のう゛
ロン２図である。第８図乃至第１０図は前記と異なる実
施例を示し、第８図は前記実施例における第３図に対応
する部分断面図、第９図は前記実施例における第４図に
対応する断面図、第１０図は前記実施例における第５図
に対応する分解斜視図である。１・・・ヘッドランプ、１ａ・・・ブラケット、１ｃ・
・・球面座、２・・・ブラケット、３・・・ピボット手
段、５・・・光軸調整用の駆動部、６・・・ピストンロ
ッド、７・・・球接手、８・・・アジャストスクリュー
、８ａ・・・球部、８ｂ・・・ピン、８ｃ・・・雄ネジ
、８ｄ・・・ドライバ溝、９・・・ピボット形ナツト、
１０・・・モータ、１１・・・ウオームギヤ、１２・・
・ウオームホイルギヤ、１３．１３’・・・中空ギヤ、
１３ａ・・・筒状のハブ、１３ｂ・・・ドリブンギヤ、
１３ｃ・・・雄ネジ、１３ｄ・・・溝、１４．１４’・
・・筒体、１４ａ・・・雄ネジ、１４ｂ・・・平面部、
１４ｃ・・・突起、１５・・・ピストンロッド、１５ａ
・・・球面座、１５ｂ・・・段、１５ｃ・・・クリップ
、１５ｄ・・・雌ネジ、１５ｅ・・・角穴、１６，１６
′・・・ハウジング、１６ａ・・・透孔、１６ｂ・・・
平面部、１６’ｃ・・・雌ネジ孔、１７・・・ハウジン
グ、１８・・・フェライトコア、１９・・・コイル、３
１・・・シャフト、３１ａ・・・角柱部、４１・・・歯
車、４２・・・ブラケット、４２ａ・・・雌ネジ、４３
・・・ネジ杆、４３ａ・・・溝。1 and 2 show a headlamp equipped with an embodiment of the headlamp optical axis adjustment device of the present invention, FIG. 1 being a front view and FIG. 2 being a side view. 3 to 7 show one embodiment of the headlamp optical axis adjustment device of the present invention, FIG. 3 is a partial sectional view, FIG. 4 is a sectional view taken along line A-A in FIG. 3, and FIG. Figure 6 is an exploded perspective view of the vicinity of the ferrite core drive part, and Figure 7 is a two-dimensional view of the drive control part. 8 to 10 show an embodiment different from the above, FIG. 8 is a partial sectional view corresponding to FIG. 3 in the above embodiment, and FIG. 9 is a sectional view corresponding to FIG. 4 in the above embodiment. , FIG. 10 is an exploded perspective view corresponding to FIG. 5 in the embodiment. 1... Headlamp, 1a... Bracket, 1c.
... Spherical seat, 2... Bracket, 3... Pivot means, 5... Drive unit for optical axis adjustment, 6... Piston rod, 7... Ball joint, 8... Adjustment screw , 8a...Ball part, 8b...Pin, 8c...Male thread, 8d...Driver groove, 9...Pivot type nut,
10...Motor, 11...Worm gear, 12...
・Worm wheel gear, 13.13'... hollow gear,
13a... cylindrical hub, 13b... driven gear,
13c...Male thread, 13d...Groove, 14.14'.
... Cylindrical body, 14a... Male screw, 14b... Flat part,
14c...Protrusion, 15...Piston rod, 15a
... Spherical seat, 15b... Step, 15c... Clip, 15d... Female screw, 15e... Square hole, 16, 16
'...Housing, 16a...Through hole, 16b...
Plane part, 16'c... Female screw hole, 17... Housing, 18... Ferrite core, 19... Coil, 3
DESCRIPTION OF SYMBOLS 1... Shaft, 31a... Square column part, 41... Gear, 42... Bracket, 42a... Female screw, 43
...screw rod, 43a...groove.

Claims

[Scope of utility model registration request]

A hollow gear that is rotated forward and reverse by a drive motor via a speed reduction mechanism, a cylindrical member fitted within this hollow gear, and a piston rod fitted inside this cylindrical member are provided, and the above-mentioned The cylindrical member is configured to be caused to reciprocate by screw feeding by forward and reverse rotation of the hollow gear, and this screw feeding reciprocating movement is transmitted to the components of the headlamp to adjust the optical axis of the headlamp. a means for accelerating the rotation of any one of the hollow gear and its transmission member; and a means for converting the rotation extracted by increasing the speed into linear reciprocating motion by screw feeding. ,
A ferrite core fixed to a member that is given this linear reciprocating motion and a hollow coil installed so as to move in and out when the ferrite core makes the linear reciprocating motion are provided, and the inductance of the hollow coil changes as the ferrite core moves in and out. 1. An optical axis adjustment device for a headlamp, characterized in that the optical axis adjustment device for a headlamp is provided with means for detecting the rotation angle position of a hollow gear, and is capable of calculating the optical axis direction of the headlamp based on this.