JPH0275367U - - Google Patents
Info
- Publication number
- JPH0275367U JPH0275367U JP15630288U JP15630288U JPH0275367U JP H0275367 U JPH0275367 U JP H0275367U JP 15630288 U JP15630288 U JP 15630288U JP 15630288 U JP15630288 U JP 15630288U JP H0275367 U JPH0275367 U JP H0275367U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- work vehicle
- jack cylinder
- amount
- oil chamber
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims 21
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Description
第１図〜第３図は、本考案に係る作業車のアウ
トリガ装置に関する一実施例の説明図、第４図は
、本考案に係る作業車のアウトリガ装置に関する
他の実施例の説明図、第４図〜第７図は、従来の
作業車のアウトリガ装置に関する説明図である。
４：ジヤツキシリンダ、１３：パイロツトチエ
ツク弁、１４：担持側油室、１５：非担持側油室
、１６：担持状態検出手段、１７，２０：油量制
御手段。
1 to 3 are explanatory diagrams of one embodiment of the outrigger device for a working vehicle according to the present invention, and FIG. 4 is an explanatory diagram of another embodiment of the outrigger device for a working vehicle according to the present invention. 4 to 7 are explanatory diagrams of conventional outrigger devices for work vehicles. 4: Jack cylinder, 13: Pilot check valve, 14: Support side oil chamber, 15: Non-support side oil chamber, 16: Support state detection means, 17, 20: Oil amount control means.
Claims (1)
り担持させるジヤツキシリンダを備えた作業車の
アウトリガ装置であつて、特に前記ジヤツキシリ
ンダの担持側油室へ通じる油路を介装され、当該
ジヤツキシリンダの担持側油室へ作動油の流入を
許容し、逆出を阻止するとともに、ジヤツキシリ
ンダの非担持側油室の圧力をパイロツト圧とし当
該パイロツト圧が作用した時にジヤツキシリンダ
の担持側油室からの流出油を許容する如く作用す
るパイロツトチエツク弁を備えてなる作業車のア
ウトリガ装置において、前記ジヤツキシリンダに
よる作業車の担持状態を検出する担持状態検出手
段と、前記ジヤツキシリンダの担持側油室へ通じ
る油路に、当該油路を経過して担持側油室から流
出する油量を制限又は政限しないように適宜制御
する油量制御手段を設け、前記担持状態検出手段
により、ジヤツキシリンダが作業車を地面より担
持させたことを検出した時に、前記油量制御手段
が前記油路を経過する油量を制限するように作動
し、前記担持状態検出手段により、ジヤツキシリ
ンダが作業車を地面より担持させていないことを
検出した時に、前記油量制御手段が前記油路を経
過する油量を制限しないように作動するよう、前
記担持状態検出手段と前記油量制御手段とを関連
させて構成したことを特徴とする作業車のアウト
リガ装置。 An outrigger device for a work vehicle equipped with a jack cylinder for supporting a work vehicle with a work implement mounted on the vehicle from the ground, and in particular, an oil passage leading to a supporting side oil chamber of the jack cylinder is interposed. , allows hydraulic oil to flow into the supporting side oil chamber of the jack cylinder and prevents it from flowing backward, and also sets the pressure in the non-supporting side oil chamber of the jack cylinder as pilot pressure, and when the pilot pressure acts, the jack is activated. In an outrigger device for a work vehicle, the outrigger device includes a pilot check valve that operates to allow oil to flow out from the oil chamber on the support side of the cylinder, and a support state detection means for detecting a state in which the work vehicle is supported by the jack cylinder; An oil amount control means is provided in the oil path leading to the support side oil chamber of the jack cylinder to appropriately control the amount of oil flowing out from the support side oil chamber through the oil path so as not to limit or restrict the amount of oil flowing out from the support side oil chamber. When the state detection means detects that the jack cylinder supports the work vehicle from the ground, the oil amount control means operates to limit the amount of oil passing through the oil passage, and the supported state detection means Accordingly, when the jack cylinder detects that the work vehicle is not supported from the ground, the oil amount control means operates so as not to limit the amount of oil passing through the oil passage. An outrigger device for a work vehicle, characterized in that it is configured in association with the oil amount control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630288U JPH0621805Y2 (en) | 1988-11-29 | 1988-11-29 | Work vehicle outrigger device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630288U JPH0621805Y2 (en) | 1988-11-29 | 1988-11-29 | Work vehicle outrigger device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0275367U true JPH0275367U (en) | 1990-06-08 |
| JPH0621805Y2 JPH0621805Y2 (en) | 1994-06-08 |
Family
ID=31434722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15630288U Expired - Lifetime JPH0621805Y2 (en) | 1988-11-29 | 1988-11-29 | Work vehicle outrigger device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621805Y2 (en) |
-
1988
- 1988-11-29 JP JP15630288U patent/JPH0621805Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0621805Y2 (en) | 1994-06-08 |
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