JPS634772U - - Google Patents
Info
- Publication number
- JPS634772U JPS634772U JP9863386U JP9863386U JPS634772U JP S634772 U JPS634772 U JP S634772U JP 9863386 U JP9863386 U JP 9863386U JP 9863386 U JP9863386 U JP 9863386U JP S634772 U JPS634772 U JP S634772U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic cylinder
- hydraulic
- switching valve
- lower traveling
- chamber side
- 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 3
Description
第１図及び第２図は本考案の一実施例を示すア
ウトリガ用油圧シリンダの油圧回路図、第３図は
本考案を適用する機械の一例でホイール式油圧シ
ヨベルの側面図、第４図はアウトリガ装置の機構
を示す第３図の拡大背面図、第５図は本考案の応
用例を示すアウトリガ用油圧シリンダの油圧回路
図、第６図及び第７図は従来のアウトリガ用油圧
シリンダの油圧回路図である。
Figures 1 and 2 are hydraulic circuit diagrams of an outrigger hydraulic cylinder showing one embodiment of the present invention, Figure 3 is a side view of a wheeled hydraulic excavator as an example of a machine to which the present invention is applied, and Figure 4 is a side view of a wheel-type hydraulic excavator. Fig. 3 is an enlarged rear view showing the mechanism of the outrigger device, Fig. 5 is a hydraulic circuit diagram of an outrigger hydraulic cylinder showing an application example of the present invention, and Figs. 6 and 7 are hydraulic pressure of a conventional outrigger hydraulic cylinder. It is a circuit diagram.
Claims (1)
、タイヤを有する下部走行体と、その下部走行体
の少なくとも後部左右に油圧シリンダを介して回
動可能に取付けたアウトリガとを備えたホイール
式作業機において、並列接続された前記油圧シリ
ンダのボトム室側油路の合流点またはロツド室側
油路の合流点にパイロツト式３ポート２位置切換
弁を接続し、その切換弁へのパイロツト油路をセ
ンタージヨイントを介して上部旋回体側へ導いた
ことを特徴とするアウトリガ用油圧シリンダの油
圧回路。 A wheeled working machine comprising an upper revolving body having a front attachment, a lower traveling body having tires, and outriggers rotatably attached to at least the rear left and right sides of the lower traveling body via a hydraulic cylinder, A pilot type 3-port 2-position switching valve is connected to the confluence point of the bottom chamber side oil passages or the confluence point of the rod chamber side oil passages of the hydraulic cylinders connected in parallel, and the pilot oil passage to the switching valve is connected to the center joint. A hydraulic circuit of a hydraulic cylinder for an outrigger, characterized in that the hydraulic cylinder is led to the upper rotating body side through the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9863386U JPH0247085Y2 (en) | 1986-06-27 | 1986-06-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9863386U JPH0247085Y2 (en) | 1986-06-27 | 1986-06-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS634772U true JPS634772U (en) | 1988-01-13 |
| JPH0247085Y2 JPH0247085Y2 (en) | 1990-12-11 |
Family
ID=30966751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9863386U Expired JPH0247085Y2 (en) | 1986-06-27 | 1986-06-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0247085Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004061312A1 (en) | 2002-12-27 | 2004-07-22 | Hitachi Construction Machinery Co.,Ltd. | Drive device of hydraulic cylinder for working |
| US7197872B2 (en) | 2002-12-27 | 2007-04-03 | Hitachi Construction Machinery Co., Ltd. | Hydraulic circuit in work vehicle |
| JP2020051101A (en) * | 2018-09-26 | 2020-04-02 | コベルコ建機株式会社 | Construction machine and piping structure of translifter device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6695257B2 (en) * | 2016-10-26 | 2020-05-20 | 株式会社竹内製作所 | Oil passage switching control device for work vehicle |
-
1986
- 1986-06-27 JP JP9863386U patent/JPH0247085Y2/ja not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004061312A1 (en) | 2002-12-27 | 2004-07-22 | Hitachi Construction Machinery Co.,Ltd. | Drive device of hydraulic cylinder for working |
| US7197872B2 (en) | 2002-12-27 | 2007-04-03 | Hitachi Construction Machinery Co., Ltd. | Hydraulic circuit in work vehicle |
| CN1320284C (en) * | 2002-12-27 | 2007-06-06 | 日立建机株式会社 | Drive device of hydraulic cylinder for working |
| US7445240B2 (en) | 2002-12-27 | 2008-11-04 | Hitachi Construction Machinery Co., Ltd. | Drive device of hydraulic cylinder for working |
| JP2020051101A (en) * | 2018-09-26 | 2020-04-02 | コベルコ建機株式会社 | Construction machine and piping structure of translifter device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0247085Y2 (en) | 1990-12-11 |
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