JPH0478037U - - Google Patents
Info
- Publication number
- JPH0478037U JPH0478037U JP12205990U JP12205990U JPH0478037U JP H0478037 U JPH0478037 U JP H0478037U JP 12205990 U JP12205990 U JP 12205990U JP 12205990 U JP12205990 U JP 12205990U JP H0478037 U JPH0478037 U JP H0478037U
- Authority
- JP
- Japan
- Prior art keywords
- optical axis
- drive circuit
- connection point
- adjustment device
- motor drive
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図は本考案に係る自動車用灯具の光軸調整
装置の一実施例を示す構成図、第２図は同回路図
、第３図は従来例を示す構成図である。
Ａ……アクチユエータ、１……灯具（ヘツドラ
ンプ）、２……出力軸、３……モータ、４……接
点部、４ａ……接点板、４ｂ……ブラシ、５……
減速機構、６……モータ駆動回路、７……信号線
、８……切替えスイツチ、９……回り込み防止用
ダイオード、１０……電圧検出回路、１１……短
絡検知回路、Ｑ１，Ｑ２……トランジスタ、Ｒ１
〜Ｒ１２……抵抗、Ｄ１〜Ｄ３……ダイオード、
ＺＤ１……定電圧ダイオード、Ｃ１……コンデン
サ。
FIG. 1 is a block diagram showing an embodiment of an optical axis adjusting device for an automobile lamp according to the present invention, FIG. 2 is a circuit diagram thereof, and FIG. 3 is a block diagram showing a conventional example. A... Actuator, 1... Lamp (headlamp), 2... Output shaft, 3... Motor, 4... Contact portion, 4a... Contact plate, 4b... Brush, 5...
Reduction mechanism, 6... Motor drive circuit, 7... Signal line, 8... Changeover switch, 9... Diode for preventing wraparound, 10... Voltage detection circuit, 11... Short circuit detection circuit, Q 1 , Q 2 ... ...Transistor, R1
~ R12 ...Resistance, D1 ~ D3 ...Diode,
ZD1... Constant voltage diode, C1... Capacitor.
Claims (1)
号線及び切替えスイツチを介して択一的に接地す
ることにより、運転モード選択の制御命令をモー
タ駆動回路に付与し、モータの回転駆動によりヘ
ツドランプを前後方向に回動させる自動車用灯具
の光軸調整装置において、各信号線にそれぞれ抵
抗の一端を接続するとともに、他端の共通接続点
を分圧抵抗を介して電源端に接続し、共通接続点
の電圧変動を検出して前記モータ駆動回路の動作
に関与させるようにしたことを特徴とする自動車
用灯具の光軸調整装置。 By selectively grounding contact points set at multiple angles via multiple signal lines and changeover switches, a control command for operating mode selection is given to the motor drive circuit, and the headlamp is activated by rotating the motor. In an optical axis adjustment device for an automobile lamp that rotates the light in the front-rear direction, one end of the resistor is connected to each signal line, and the common connection point of the other end is connected to the power supply terminal via a voltage dividing resistor. 1. An optical axis adjustment device for an automobile lamp, characterized in that voltage fluctuations at a connection point are detected and involved in the operation of the motor drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12205990U JPH0478037U (en) | 1990-11-21 | 1990-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12205990U JPH0478037U (en) | 1990-11-21 | 1990-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0478037U true JPH0478037U (en) | 1992-07-08 |
Family
ID=31869864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12205990U Pending JPH0478037U (en) | 1990-11-21 | 1990-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0478037U (en) |
-
1990
- 1990-11-21 JP JP12205990U patent/JPH0478037U/ja active Pending
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