JPS6294972U - - Google Patents
Info
- Publication number
- JPS6294972U JPS6294972U JP18779685U JP18779685U JPS6294972U JP S6294972 U JPS6294972 U JP S6294972U JP 18779685 U JP18779685 U JP 18779685U JP 18779685 U JP18779685 U JP 18779685U JP S6294972 U JPS6294972 U JP S6294972U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- vehicle
- hydraulic pump
- driven
- steering
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は、本考案の実施例に係るクレーン搭載
車両の自動ステアリング装置の電気回路図、第２
図は、同装置の車速応答スイツチ部の構造を示す
斜視図、第３図は、従来例の油圧回路図である。
１……セーフテイーリレー回路、３……スピー
ドメータ、４……非常用モータ駆動回路、５……
エンジン停止検出手段、６……非常用モータ、Ｌ
ｃ……チヤージングランプ、ＲＬ１，ＲＬ２……
リレーコイル、ＲＳ１，ＲＳ２……リレー接点、
Ｓ３……車速応答スイツチ、Ｐ１……第１の油圧
ポンプ、Ｐ２……第２の油圧ポンプ、ＳＴ……パ
ワーステアリング用油圧シリンダ、Ｅ……エンジ
ン。
FIG. 1 is an electric circuit diagram of an automatic steering device for a crane-equipped vehicle according to an embodiment of the present invention, and FIG.
The figure is a perspective view showing the structure of the vehicle speed response switch section of the device, and FIG. 3 is a hydraulic circuit diagram of a conventional example. 1...Safety relay circuit, 3...Speedmeter, 4...Emergency motor drive circuit, 5...
Engine stop detection means, 6...Emergency motor, L
c...Charging lamp, RL 1 , RL 2 ...
Relay coil, RS1 , RS2 ...Relay contact,
S3 ...Vehicle speed response switch, P1 ...First hydraulic pump, P2 ...Second hydraulic pump, ST...Hydraulic cylinder for power steering, E...Engine.
Claims (1)
のパワーステアリング用油圧シリンダを作動させ
る第１の油圧ポンプと、エンジン停止時等非常時
において車載用電源を駆動源とする非常用モータ
によつて上記第１の油圧ポンプに代えて駆動され
る第２の油圧ポンプとを備えてなるクレーン車に
おいて、車両走行時に当該車両の走行車速が所定
値以上になつたときに作動する車速応答スイツチ
と、上記エンジンの停止状態を検出し、該エンジ
ンの停止状態が検出された時に作動するエンジン
停止検出スイツチとを設け、上記車速応答スイツ
チと上記エンジン停止検出スイツチの両者が作動
したときに上記非常用モータを作動させて上記第
２の油圧ポンプを駆動するようにしたことを特徴
とするクレーン車のステアリング装置。 A first hydraulic pump that is normally driven by the engine to operate a power steering hydraulic cylinder for steering the vehicle, and an emergency motor that is driven by the on-vehicle power source in emergencies such as when the engine is stopped. In a crane truck comprising a second hydraulic pump driven in place of the first hydraulic pump, a vehicle speed response switch that operates when the traveling speed of the vehicle exceeds a predetermined value while the vehicle is traveling; and an engine stop detection switch that detects a stopped state of the engine and operates when the stopped state of the engine is detected, and activates the emergency motor when both the vehicle speed response switch and the engine stop detection switch are activated. A steering device for a crane truck, characterized in that the steering device is configured to operate to drive the second hydraulic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18779685U JPS6294972U (en) | 1985-12-03 | 1985-12-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18779685U JPS6294972U (en) | 1985-12-03 | 1985-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6294972U true JPS6294972U (en) | 1987-06-17 |
Family
ID=31138586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18779685U Pending JPS6294972U (en) | 1985-12-03 | 1985-12-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6294972U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608160A (en) * | 1983-06-28 | 1985-01-17 | Kobe Steel Ltd | Emergency steering circuit for wheel type working machine |
-
1985
- 1985-12-03 JP JP18779685U patent/JPS6294972U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608160A (en) * | 1983-06-28 | 1985-01-17 | Kobe Steel Ltd | Emergency steering circuit for wheel type working machine |