JPS62145880U - - Google Patents
Info
- Publication number
- JPS62145880U JPS62145880U JP3419886U JP3419886U JPS62145880U JP S62145880 U JPS62145880 U JP S62145880U JP 3419886 U JP3419886 U JP 3419886U JP 3419886 U JP3419886 U JP 3419886U JP S62145880 U JPS62145880 U JP S62145880U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic cylinder
- steering device
- steering
- switching valve
- mode
- 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
- 239000003921 oil Substances 0.000 claims 2
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
添付図面は本考案の一実施例を示す概略構成図
である。
10L及び10R……前輪側の左右のステアリ
ング用油圧シリンダ、12L及び12R……後輪
側の左右のステアリング用油圧シリンダ、14…
…第1運転室のステアリング装置、16……第2
運転室のステアリング装置、18……オイルポン
プ、20……オイルリザーバ、24……圧油供給
通路、26……戻り通路、28……運転室選択ス
イツチ、30……バツテリ、32……第1切換弁
、34……パイロツト付ダブルチエツクバルブ、
36……第3切換弁、38……運転モード選択ス
イツチ、40……第2切換弁、42……方向切換
スイツチ、44……パイロツト付ダブルチエツク
バルブ。
The accompanying drawing is a schematic diagram showing an embodiment of the present invention. 10L and 10R...Hydraulic cylinders for left and right steering on the front wheel side, 12L and 12R...Hydraulic cylinders for left and right steering on the rear wheel side, 14...
...Steering device in the first driver's cab, 16...Second
Driver's cab steering device, 18...Oil pump, 20...Oil reservoir, 24...Pressure oil supply passage, 26...Return passage, 28...Driver's cab selection switch, 30...Battery, 32...First Switching valve, 34...Double check valve with pilot,
36...Third switching valve, 38...Operation mode selection switch, 40...Second switching valve, 42...Direction switching switch, 44...Double check valve with pilot.
Claims (1)
トステアリング用の油圧シリンダ、車体側に設け
られた第1の運転室及び車台フレーム上に装架さ
れたクレーン等作業装置操縦用の第2の運転室に
夫々設けられた第1及び第2のステアリング装置
、上記ステアリング装置の操作に応動して上記ス
テアリング用油圧シリンダに作動圧油を供給する
圧油源、上記第1及び第2のステアリング装置と
圧油源とを選択的に連結する第1の切換弁、上記
油圧シリンダと第2ステアリング装置との間に介
装され、同油圧シリンダの伸長側と収縮側とを逆
転させることができる第2の切換弁、上記油圧シ
リンダと第2ステアリング装置との間に介装され
、前輪の油圧シリンダのみを操向作動させる第1
モードと、前輪及び後輪の油圧シリンダを反対方
向に操向作動させる第2モードと、前輪及び後輪
の油圧シリンダを同方向に操向作動させる第3モ
ードとの何れかを選択することができる第3の切
換弁、並びに上記第1ステアリング装置と油圧シ
リンダとの間及び第2切換弁と第3切換弁との間
に夫々介装されたパイロツト付のダブルチエツク
弁とを具えてなることを特徴とする作業用車両の
操向装置。 Hydraulic cylinders for power assist steering provided on the front and rear wheels of the vehicle, a first driver's cab provided on the vehicle body side, and a second driver's cab for operating work equipment such as a crane mounted on the chassis frame. first and second steering devices respectively provided in the steering device; a pressure oil source that supplies hydraulic oil to the steering hydraulic cylinder in response to the operation of the steering device; a first switching valve that selectively connects the hydraulic cylinder to the oil source; a switching valve, a first one which is interposed between the hydraulic cylinder and the second steering device, and which operates only the front wheel hydraulic cylinder;
mode, a second mode in which the front and rear hydraulic cylinders are steered in opposite directions, and a third mode in which the front and rear hydraulic cylinders are steered in the same direction. and a double check valve with a pilot interposed between the first steering device and the hydraulic cylinder and between the second switching valve and the third switching valve. A steering device for a work vehicle characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3419886U JPS62145880U (en) | 1986-03-10 | 1986-03-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3419886U JPS62145880U (en) | 1986-03-10 | 1986-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62145880U true JPS62145880U (en) | 1987-09-14 |
Family
ID=30842521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3419886U Pending JPS62145880U (en) | 1986-03-10 | 1986-03-10 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62145880U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006219113A (en) * | 2005-01-11 | 2006-08-24 | Kobelco Cranes Co Ltd | Steering device for wheeled working machine |
JP2010115986A (en) * | 2008-11-12 | 2010-05-27 | Tadano Ltd | Hydraulic circuit structure of steering arrangement |
-
1986
- 1986-03-10 JP JP3419886U patent/JPS62145880U/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006219113A (en) * | 2005-01-11 | 2006-08-24 | Kobelco Cranes Co Ltd | Steering device for wheeled working machine |
JP2010115986A (en) * | 2008-11-12 | 2010-05-27 | Tadano Ltd | Hydraulic circuit structure of steering arrangement |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS62145880U (en) | ||
JPS6045266U (en) | Vehicle rear wheel steering device | |
JPS63137103U (en) | ||
JPH025381U (en) | ||
JPS60135268U (en) | work vehicle | |
JPS6372167U (en) | ||
JPH01161178U (en) | ||
JPH0177575U (en) | ||
JPS61175931U (en) | ||
JPS6440769U (en) | ||
JPS6448363U (en) | ||
JPH0465668U (en) | ||
JPS6385438U (en) | ||
JPS62145814U (en) | ||
JPS62135678U (en) | ||
JPS6212586U (en) | ||
JPS63139079U (en) | ||
JPS6091576U (en) | Rear wheel steering device | |
JPS6340282U (en) | ||
KR930011794A (en) | Agricultural work vehicle | |
JPS6434301U (en) | ||
JPS6299474U (en) | ||
JPH01170067U (en) | ||
JPS6157082U (en) | ||
JPS62143516U (en) |