JPH01114371U - - Google Patents
Info
- Publication number
- JPH01114371U JPH01114371U JP994788U JP994788U JPH01114371U JP H01114371 U JPH01114371 U JP H01114371U JP 994788 U JP994788 U JP 994788U JP 994788 U JP994788 U JP 994788U JP H01114371 U JPH01114371 U JP H01114371U
- Authority
- JP
- Japan
- Prior art keywords
- steering device
- rear wheels
- wheels
- wheel steering
- front wheels
- 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
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Description
添付図面は本考案による四輪操舵装置の一実施
例を示し、第１図は全体の説明図、第２図は操舵
特性の説明図である。
符号の説明、２０……動力舵取装置（後輪動力
舵取装置）、２１……パワーシリンダ、２４……
作動ロツド、２６……サーボ弁、２６ａ……入力
軸、３０……連動装置、４０……歯車式変速機、
６１……供給ポンプ（後輪側供給ポンプ）。
The accompanying drawings show an embodiment of the four-wheel steering system according to the present invention, with FIG. 1 being an overall explanatory diagram, and FIG. 2 being an explanatory diagram of steering characteristics. Explanation of symbols, 20... Power steering device (rear wheel power steering device), 21... Power cylinder, 24...
Actuation rod, 26...servo valve, 26a...input shaft, 30...interlocking device, 40...gear type transmission,
61... Supply pump (rear wheel side supply pump).
Claims (1)
る後輪舵取装置と、前記両舵取装置を機械的に互
いに連動して後輪の操舵角が前輪の操舵角に応じ
て変化するように制御する連動装置を備えてなる
四輪操舵装置において、前記後輪舵取装置は、作
動ロツドを介して後輪を操舵するパワーシリンダ
と、供給ポンプからの作動流体を前記パワーシリ
ンダの両作動室に給排制御するサーボ弁を備えた
動力舵取装置よりなり、前記連動装置は車速に応
じて作動して低速の場合は高速の場合よりも減速
比が小となりかつ低速と高速では回転が逆向きと
なるように変速比を切り換える歯車式変速機を備
え、この歯車式変速機を介して前輪の操舵角を前
記サーボ弁の入力部材に伝達して、低速時には後
輪が前輪と逆位相に操舵され、高速時には後輪が
前輪と同位相に操舵されるよう構成したことを特
徴とする四輪操舵装置。 A front wheel steering device that steers the front wheels, a rear wheel steering device that steers the rear wheels, and both of the steering devices are mechanically interlocked to change the steering angle of the rear wheels in accordance with the steering angle of the front wheels. In the four-wheel steering device, the rear wheel steering device includes a power cylinder that steers the rear wheels via an actuation rod, and a power cylinder that supplies working fluid from a supply pump to both the power cylinders. It consists of a power steering device equipped with a servo valve that controls supply and exhaust to the working chamber, and the interlocking device operates according to the vehicle speed, and the reduction ratio is smaller at low speeds than at high speeds, and the rotation speed is reduced at low and high speeds. The steering angle of the front wheels is transmitted to the input member of the servo valve through the gear type transmission, so that the rear wheels are in the opposite direction to the front wheels at low speeds. A four-wheel steering device characterized in that the rear wheels are steered in phase with each other and the rear wheels are steered in the same phase as the front wheels at high speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP994788U JPH01114371U (en) | 1988-01-28 | 1988-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP994788U JPH01114371U (en) | 1988-01-28 | 1988-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01114371U true JPH01114371U (en) | 1989-08-01 |
Family
ID=31217142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP994788U Pending JPH01114371U (en) | 1988-01-28 | 1988-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01114371U (en) |
-
1988
- 1988-01-28 JP JP994788U patent/JPH01114371U/ja active Pending
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