JPS63149373U - - Google Patents
Info
- Publication number
- JPS63149373U JPS63149373U JP4294887U JP4294887U JPS63149373U JP S63149373 U JPS63149373 U JP S63149373U JP 4294887 U JP4294887 U JP 4294887U JP 4294887 U JP4294887 U JP 4294887U JP S63149373 U JPS63149373 U JP S63149373U
- Authority
- JP
- Japan
- Prior art keywords
- steering
- wheel steering
- neutral position
- hydraulic
- neutral
- 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
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Description
第１図、第２図は本考案の実施例を示す油圧回
路図と電気回路図、第３図は操舵モードを示す説
明図、第４図はリミツトスイツチの動作特性図、
第５図は本考案の他の実施例を示す構成図である
。
４……パワーステアリング、５……油圧ポンプ
、８……リアステアリングユニツト、１０……モ
ード切換バルブ、１３……後輪操舵用アクチユエ
ータ、１８……油圧回路、１９，２０……方向切
換弁、２１，２２……リミツトスイツチ、２４…
…中立復帰スイツチ、２６……制御回路、３０…
…ポテンシヨメータ、３１……制御回路。
1 and 2 are hydraulic circuit diagrams and electrical circuit diagrams showing an embodiment of the present invention, FIG. 3 is an explanatory diagram showing the steering mode, and FIG. 4 is a diagram of the operating characteristics of the limit switch.
FIG. 5 is a block diagram showing another embodiment of the present invention. 4...Power steering, 5...Hydraulic pump, 8...Rear steering unit, 10...Mode switching valve, 13...Rear wheel steering actuator, 18...Hydraulic circuit, 19, 20...Direction switching valve, 21, 22...Limit switch, 24...
...Neutral return switch, 26...Control circuit, 30...
...Potentiometer, 31...Control circuit.
Claims (1)
アステアリングユニツトを備えると共に、このリ
アステアリングユニツトと後輪操舵用アクチユエ
ータとの間に油圧の供給方向を選択するモード切
換バルブを介装した４輪操舵車において、前輪操
舵用パワーステアリングの油圧源からの油圧を後
輪操舵用アクチユエータに導く油圧回路を形成し
、この油圧回路に方向切換弁を介装すると共に、
後輪の中立位置を検出する手段と、中立復帰スイ
ツチと、中立復帰スイツチの導通時に中立位置検
出手段の信号に応じて前記方向切換弁を駆動する
制御回路とを設けたことを特徴とする４輪操舵車
の中立位置復帰装置。 A four-wheel steering vehicle is provided with a rear steering unit interlocked with power steering for front wheel steering, and a mode switching valve for selecting the supply direction of hydraulic pressure is interposed between the rear steering unit and an actuator for rear wheel steering, Forming a hydraulic circuit that guides hydraulic pressure from a hydraulic power source for front wheel steering power steering to an actuator for rear wheel steering, interposing a directional control valve in this hydraulic circuit, and
4 characterized in that it is provided with means for detecting a neutral position of the rear wheels, a neutral return switch, and a control circuit for driving the directional control valve in accordance with a signal from the neutral position detecting means when the neutral return switch is conductive. Neutral position return device for wheel-steering vehicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4294887U JPS63149373U (en) | 1987-03-24 | 1987-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4294887U JPS63149373U (en) | 1987-03-24 | 1987-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63149373U true JPS63149373U (en) | 1988-09-30 |
Family
ID=30859349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4294887U Pending JPS63149373U (en) | 1987-03-24 | 1987-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63149373U (en) |
-
1987
- 1987-03-24 JP JP4294887U patent/JPS63149373U/ja active Pending
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