JPS6029741U - Headlight optical axis adjustment device - Google Patents
Headlight optical axis adjustment deviceInfo
- Publication number
- JPS6029741U JPS6029741U JP12219283U JP12219283U JPS6029741U JP S6029741 U JPS6029741 U JP S6029741U JP 12219283 U JP12219283 U JP 12219283U JP 12219283 U JP12219283 U JP 12219283U JP S6029741 U JPS6029741 U JP S6029741U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- optical axis
- headlamp
- changes
- pulse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
第１図は従来の装置を示す回路図、第２図は本考案の実
施の一例を示す回路図、第３図イ９口はそのタイムチャ
ート、第４図は機構部の一例を示す説明図である。
４・・・・・・モータ駆動回路、５・・・・・・モータ
、６・・・・・・可変インダクタンス、７・・・・・・
発振器、８・・・・・・波形整形回路、９・・・・・・
基準パルス回路、１０・・・・・・比較回路、１１・・
・・・・電源スィッチ、１２・・・・・・初期設定回路
。
Ｉ ↑ ↑ Ｉ −−−□−−’
Ｉｌｌ、、、。
１ ル
；か罷キー−〒１１・〜
一−□−−丁ｔｏ 、具。
７ １−〜 −一ゝ４Fig. 1 is a circuit diagram showing a conventional device, Fig. 2 is a circuit diagram showing an example of implementation of the present invention, Fig. 3 is a time chart thereof, and Fig. 4 is an explanatory diagram showing an example of the mechanism part. It is. 4...Motor drive circuit, 5...Motor, 6...Variable inductance, 7...
Oscillator, 8... Waveform shaping circuit, 9...
Reference pulse circuit, 10... Comparison circuit, 11...
...Power switch, 12...Initial setting circuit. I ↑ ↑ I −−−□−−'
Ill... 1 key - 〒11・〜１－□－－Dingto、Ingredients. 7 1-～-1ゝ4
Claims (1)
せる光軸駆動装置と、前記前照灯の光軸の方向に対応し
てインダクタンスが変化する可変インダクタンスと、こ
の可変インダクタンスが変化することにより発振周波数
が変化する発振器と、この発振器から出力された信号を
パルス波に整形する波形整形回路と、前記車輛に加わる
荷重の夫きさに応じて設定された幅の単パルスを発生す
る基準パルス回路と、この基準パルス回路のパルス幅と
前記波形整形回路の出力パルス幅とを比較する比較回路
と、この比較回路の出力信号により前記モータを正転ま
たは逆転させるモータ駆動回路と、装置の電源が投入さ
れる毎に前照灯の光軸の方向を上又は下の初期設定位置
まで変化させる初期設定回路とを具備することを特徴と
する前照灯の光軸調整装置。an optical axis drive device that changes the direction of the optical axis of a vehicle headlamp by rotation of a motor; a variable inductance whose inductance changes in accordance with the direction of the optical axis of the headlamp; an oscillator whose oscillation frequency changes as the oscillation frequency changes; a waveform shaping circuit that shapes the signal output from the oscillator into a pulse wave; and a single pulse having a width set according to the intensity of the load applied to the vehicle. A reference pulse circuit that generates a reference pulse circuit, a comparison circuit that compares the pulse width of the reference pulse circuit and an output pulse width of the waveform shaping circuit, and a motor drive circuit that rotates the motor in the forward or reverse direction based on the output signal of the comparison circuit. 1. An optical axis adjustment device for a headlamp, comprising: an initial setting circuit that changes the direction of the optical axis of the headlamp to an upper or lower initial setting position each time the device is powered on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12219283U JPS6029741U (en) | 1983-08-08 | 1983-08-08 | Headlight optical axis adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12219283U JPS6029741U (en) | 1983-08-08 | 1983-08-08 | Headlight optical axis adjustment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6029741U true JPS6029741U (en) | 1985-02-28 |
Family
ID=30279392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12219283U Pending JPS6029741U (en) | 1983-08-08 | 1983-08-08 | Headlight optical axis adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6029741U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57126738A (en) * | 1980-12-23 | 1982-08-06 | Bosch Gmbh Robert | Electromotive regulator for head lamp of automobile |
-
1983
- 1983-08-08 JP JP12219283U patent/JPS6029741U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57126738A (en) * | 1980-12-23 | 1982-08-06 | Bosch Gmbh Robert | Electromotive regulator for head lamp of automobile |
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