JPH0324476U - - Google Patents
Info
- Publication number
- JPH0324476U JPH0324476U JP8218589U JP8218589U JPH0324476U JP H0324476 U JPH0324476 U JP H0324476U JP 8218589 U JP8218589 U JP 8218589U JP 8218589 U JP8218589 U JP 8218589U JP H0324476 U JPH0324476 U JP H0324476U
- Authority
- JP
- Japan
- Prior art keywords
- drag link
- hydraulic cylinders
- fixed length
- knuckle
- extendable
- 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
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Description
図面はこの考案の実施例に関し、第１図はスピ
ードスプレーヤのステアリング装置の斜視図、第
２図及び第３図はそれぞれ低速走行及び高速走行
のナツクルの旋回状態を示す図、第４図はスピー
ドスプレーヤの動力伝達系及びステアリング系の
構成図、第５図は第１及び第２の油圧シリンダを
側方から見た構成図、第６図は第１及び第２の油
圧シリンダの油圧回路図、第７図はスピードスプ
レーヤの側面図である。
１２……前輪（操舵輪）、３８……ステアリン
グホイール、４２……ピツトマンアーム（揺動部
材）、４４……ナツクル、４６……キングピン（
旋回軸線）、５２……第１のドラツグリンク、５
４……第２のドラツグリンク、５６……第１の油
圧シリンダ（油圧シリンダ）、５７……第２の油
圧シリンダ（油圧シリンダ）、５……切替レバー
（操作部材）、６４……油圧切替弁、７４……ピ
ストン、７６，７８……油室。
The drawings relate to an embodiment of this invention, in which Fig. 1 is a perspective view of the steering device of the speed sprayer, Figs. 2 and 3 are diagrams showing the turning state of the knuckle during low-speed running and high-speed running, respectively, and Fig. 4 is a perspective view of the steering device of the speed sprayer. A configuration diagram of the power transmission system and steering system of the sprayer, FIG. 5 is a configuration diagram of the first and second hydraulic cylinders viewed from the side, and FIG. 6 is a hydraulic circuit diagram of the first and second hydraulic cylinders. FIG. 7 is a side view of the speed sprayer. 12...Front wheel (steering wheel), 38...Steering wheel, 42...Pittman arm (swinging member), 44...Natsukuru, 46...King pin (
rotation axis), 52...first drag link, 5
4... Second drag link, 56... First hydraulic cylinder (hydraulic cylinder), 57... Second hydraulic cylinder (hydraulic cylinder), 5... Switching lever (operating member), 64... Hydraulic switching valve , 74... Piston, 76, 78... Oil chamber.
Claims (1)
動して前後方向へ揺動する揺動部材４２と、操舵
輪１２と一体的に旋回軸線４６の周りに旋回する
ナツクル４４と、前後の端部においてそれぞれ前
記揺動部材４２及び前記ナツクル４４に連結し伸
縮自在である第１のドラツグリンク５２と、前端
部において前記揺動部材４２に連結し後端部にお
いて前記第１のドラツグリンク５２の後端部より
前記旋回軸線４６から離れた個所で前記ナツクル
４４に連結し伸縮自在である第２のドラツグリン
ク５４と、高低速の切替えと共に低速走行時では
前記第１のドラツグリンク５２及び前記第２のド
ラツグリンク５４をそれぞれ長さ固定及び伸縮自
在とし高速走行時では前記第１のドラツグリンク
５２及び前記第２のドラツグリンク５４をそれぞ
れ伸縮自在及び長さ固定とする操作部材５８とを
有してなることを特徴とする車両用ステアリング
装置。 (2) 伸縮及び長さ固定の切替自在の油圧シリン
ダ５６，５７が前記第１のドラツグリンク５２及
び前記第２のドラツグリンク５４にそれぞれ配設
され、前記操作部材５８により操作されて前記油
圧シリンダ５６，５７の伸縮及び長さ固定の切替
えを行う油圧切替弁６４が設けられ、この油圧切
替弁６４は、前記油圧シリンダ５６，５７の伸縮
自在時及び長さ固定時において前記油圧シリンダ
５６，５７内のピストン７４の両側の油室７６，
７８をそれぞれ連通及び非連通状態にする請求項
２記載の車両用ステアリング装置。[Claims for Utility Model Registration] (1) A swinging member 42 that swings back and forth in conjunction with the rotational operation of the steering wheel 38, and a knuckle 44 that swings around a swing axis 46 integrally with the steering wheel 12. , a first drag link 52 connected to the swinging member 42 and the knuckle 44 at the front and rear ends and extendable and retractable, and a first drag link 52 connected to the swinging member 42 at the front end and the first drag link 52 at the rear end. A second drag link 54 is connected to the knuckle 44 at a point away from the pivot axis 46 from the rear end of the drag link 52 and is extendable. and an operating member 58 that makes the second drag link 54 have a fixed length and a fixed length, respectively, and the first drag link 52 and the second drag link 54 have a fixed length and a fixed length when traveling at high speed. A vehicle steering device characterized by: (2) Hydraulic cylinders 56 and 57, which are extendable and retractable and whose lengths are fixed and can be switched, are disposed on the first drag link 52 and the second drag link 54, respectively, and are operated by the operating member 58 to control the hydraulic cylinders 56, 57. A hydraulic switching valve 64 is provided for switching between telescopic and fixed length of the hydraulic cylinders 57, and this hydraulic switching valve 64 controls the pressure inside the hydraulic cylinders 56, 57 when the hydraulic cylinders 56, 57 are telescopic and when the length is fixed. Oil chambers 76 on both sides of the piston 74,
3. The vehicle steering device according to claim 2, wherein the ports 78 are in a communicating state and a non-communicating state, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8218589U JPH0644774Y2 (en) | 1989-07-14 | 1989-07-14 | Vehicle steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8218589U JPH0644774Y2 (en) | 1989-07-14 | 1989-07-14 | Vehicle steering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0324476U true JPH0324476U (en) | 1991-03-13 |
| JPH0644774Y2 JPH0644774Y2 (en) | 1994-11-16 |
Family
ID=31628768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8218589U Expired - Lifetime JPH0644774Y2 (en) | 1989-07-14 | 1989-07-14 | Vehicle steering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644774Y2 (en) |
-
1989
- 1989-07-14 JP JP8218589U patent/JPH0644774Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0644774Y2 (en) | 1994-11-16 |
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