JPS63102540U - - Google Patents
Info
- Publication number
- JPS63102540U JPS63102540U JP19972486U JP19972486U JPS63102540U JP S63102540 U JPS63102540 U JP S63102540U JP 19972486 U JP19972486 U JP 19972486U JP 19972486 U JP19972486 U JP 19972486U JP S63102540 U JPS63102540 U JP S63102540U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- footlight
- capacitor
- power supply
- terminal
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の降車用足元灯電気回路図であ
る。
１……直流電源、２……キースイツチ、７……
リミツトスイツチ、９，１０，１２，１３……ト
ランジスタ、１１，１７……コンデンサ、１５…
…足元灯、１４，１６，１８，１９，２０，２１
……抵抗。
FIG. 1 is an electrical circuit diagram of the footlight for getting off the vehicle according to the present invention. 1...DC power supply, 2...Key switch, 7...
Limit switch, 9, 10, 12, 13... Transistor, 11, 17... Capacitor, 15...
...Footlight, 14, 16, 18, 19, 20, 21
……resistance.
Claims (1)
チ７、電磁弁８を直列に接続して接地せしめ、ま
た直流電源１よりダイオード２２、トランジスタ
１０、コンデンサ１１を経て足元灯１５に通じる
電路を設け、また電流電源１にトランジスタ１２
のコレクタ端子を連結し、そのトランジスタ１２
のコレクタ端子とベース端子とを抵抗１６を介し
て接続し、かつトランジスタ１２のベース端子と
コンデンサ１７および抵抗１８とを並列に配置し
てリミツトスイツチ７の上流側に接続してトリガ
発生手段回路を形成し、一方、直流電源１側を別
のトランジスタ１３および９のそれぞれコレクタ
端子に接続し、そのトランジスタ９のエミツタ端
子を足元灯１５のプラス側に接続せしめて、上記
トリガ発生手段回路内トランジスタ１２をコンデ
ンサ１７充電時にオン作動可能とするとともに、
コンデンサ１１の放電終了時までトランジスタ１
３，９を経て足元灯１５に点灯電流を通電可能に
構成したことを特徴とする建設機械の降車用足元
灯電気回路。 A DC power supply 1, a key switch 2, a limit switch 7, and a solenoid valve 8 are connected in series and grounded, and an electric path is provided from the DC power supply 1 to the footlight 15 via a diode 22, a transistor 10, and a capacitor 11. transistor 12
, and connect the collector terminals of the transistor 12.
The collector terminal and base terminal of the transistor 12 are connected through a resistor 16, and the base terminal of the transistor 12, a capacitor 17, and a resistor 18 are arranged in parallel and connected to the upstream side of the limit switch 7 to form a trigger generating means circuit. On the other hand, the DC power supply 1 side is connected to the collector terminals of other transistors 13 and 9, respectively, and the emitter terminal of the transistor 9 is connected to the positive side of the footlight 15, so that the transistor 12 in the trigger generating means circuit is activated. The capacitor 17 can be turned on when charging, and
Transistor 1 until the end of discharge of capacitor 11
An electrical circuit for a footlight for getting off a construction machine, characterized in that a lighting current can be applied to the footlight 15 through steps 3 and 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986199724U JPH0352190Y2 (en) | 1986-12-25 | 1986-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986199724U JPH0352190Y2 (en) | 1986-12-25 | 1986-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63102540U true JPS63102540U (en) | 1988-07-04 |
| JPH0352190Y2 JPH0352190Y2 (en) | 1991-11-12 |
Family
ID=31161615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986199724U Expired JPH0352190Y2 (en) | 1986-12-25 | 1986-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0352190Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019142447A (en) * | 2018-02-23 | 2019-08-29 | 株式会社クボタ | Work machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145233U (en) * | 1982-03-26 | 1983-09-30 | 日産ディーゼル工業株式会社 | Automobile step lamp device |
-
1986
- 1986-12-25 JP JP1986199724U patent/JPH0352190Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145233U (en) * | 1982-03-26 | 1983-09-30 | 日産ディーゼル工業株式会社 | Automobile step lamp device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019142447A (en) * | 2018-02-23 | 2019-08-29 | 株式会社クボタ | Work machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0352190Y2 (en) | 1991-11-12 |