JPH02132752U - - Google Patents
Info
- Publication number
- JPH02132752U JPH02132752U JP4241789U JP4241789U JPH02132752U JP H02132752 U JPH02132752 U JP H02132752U JP 4241789 U JP4241789 U JP 4241789U JP 4241789 U JP4241789 U JP 4241789U JP H02132752 U JPH02132752 U JP H02132752U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- working machine
- work tool
- type hydraulic
- cylinder
- 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
- 230000000452 restraining effect Effects 0.000 claims 2
- 230000003028 elevating effect Effects 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Operation Control Of Excavators (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Mechanical Control Devices (AREA)
Description
図面は本考案の実施例と比較例を示し、第１図
は本案要部の斜視図、第２図は同じく平面図、第
３図は同じく立面側断面図、第４図は同じく立面
正面（背面）断面図、第５図は同じく平面断面図
、第６図はローダ全体を示す側面図、第７図は油
圧回路図、第８図は比較例の斜視図、第９図は同
じくその平面図である。
１……ブーム式油圧作業機（ローダ）、７……
ブーム、９……作業具、１１……昇降シリンダ、
１２……チルトシリンダ、３４，３５……制御弁
、４０……操作レバー、４１……制御ボツクス、
５２……牽制部材、Ｒ……リンク機構。
The drawings show an embodiment of the present invention and a comparative example, in which Fig. 1 is a perspective view of the main part of the invention, Fig. 2 is a plan view, Fig. 3 is a side sectional view in elevation, and Fig. 4 is an elevational view. A front (back) sectional view, FIG. 5 is a plan sectional view, FIG. 6 is a side view showing the entire loader, FIG. 7 is a hydraulic circuit diagram, FIG. 8 is a perspective view of a comparative example, and FIG. 9 is the same. FIG. 1...Boom type hydraulic working machine (loader), 7...
Boom, 9... Working tool, 11... Lifting cylinder,
12...Tilt cylinder, 34, 35...Control valve, 40...Operation lever, 41...Control box,
52... Checking member, R... Link mechanism.
Claims (1)
在とされ、該ブーム７に取付けられた作業具９が
チルトシリンダ１２を介して傾動自在とされたブ
ーム式油圧作業機１であつて、前記昇降シリンダ
１１およびチルトシリンダ１２をそれぞれ制御す
る制御弁３４，３５を備え、該制御弁３４，３５
を１本の操作レバー４０で独立および同時に操作
可能にした油圧操作装置において、 作業具９を略持上げ姿勢にした状態からのブー
ム７の上昇動作を、チルトシリンダ１２の制御弁
３５にフイードバツクさせて作業具９の略持上げ
姿勢を保持するリンク機構Ｒを設け、前記操作レ
バー４０の制御ボツクス４１に、該操作レバー４
０の上げ動作Ｕ、下げ動作Ｄおよびダンプ動作Ｔ
を拘束する牽制部材５２を左右方向移動自在でか
つ回動自在に備えていることを特徴とするブーム
式油圧作業機の油圧操作装置。[Claims for Utility Model Registration] A boom-type hydraulic working machine in which a boom 7 is movable up and down via an elevating cylinder 11, and a work tool 9 attached to the boom 7 is tiltable via a tilt cylinder 12. 1, comprising control valves 34 and 35 for controlling the lift cylinder 11 and the tilt cylinder 12, respectively, the control valves 34 and 35
In a hydraulic operating device that can be operated independently and simultaneously with a single operating lever 40, the lifting operation of the boom 7 from a state in which the work tool 9 is in a substantially lifting position is fed back to the control valve 35 of the tilt cylinder 12. A link mechanism R for maintaining the work tool 9 in a substantially lifted position is provided, and a control box 41 of the operating lever 40 is provided with a link mechanism R that maintains a substantially lifted posture of the operating tool 9.
0 raising operation U, lowering operation D and dumping operation T
A hydraulic operating device for a boom-type hydraulic working machine, characterized in that a restraining member 52 for restraining a boom-type hydraulic working machine is provided so as to be movable in the left-right direction and rotatable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4241789U JPH0724431Y2 (en) | 1989-04-11 | 1989-04-11 | Boom type hydraulic working equipment hydraulic operating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4241789U JPH0724431Y2 (en) | 1989-04-11 | 1989-04-11 | Boom type hydraulic working equipment hydraulic operating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02132752U true JPH02132752U (en) | 1990-11-05 |
| JPH0724431Y2 JPH0724431Y2 (en) | 1995-06-05 |
Family
ID=31553946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4241789U Expired - Lifetime JPH0724431Y2 (en) | 1989-04-11 | 1989-04-11 | Boom type hydraulic working equipment hydraulic operating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724431Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2924175A3 (en) * | 2014-03-27 | 2015-10-14 | Kubota Corporation | Front loader |
| JP2015194015A (en) * | 2014-03-31 | 2015-11-05 | 株式会社クボタ | front loader |
| JP2015194014A (en) * | 2014-03-31 | 2015-11-05 | 株式会社クボタ | front loader |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5114133B2 (en) * | 2007-08-27 | 2013-01-09 | 株式会社クボタ | Front loader |
| JP5114132B2 (en) * | 2007-08-27 | 2013-01-09 | 株式会社クボタ | Front loader |
-
1989
- 1989-04-11 JP JP4241789U patent/JPH0724431Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2924175A3 (en) * | 2014-03-27 | 2015-10-14 | Kubota Corporation | Front loader |
| JP2015194015A (en) * | 2014-03-31 | 2015-11-05 | 株式会社クボタ | front loader |
| JP2015194014A (en) * | 2014-03-31 | 2015-11-05 | 株式会社クボタ | front loader |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0724431Y2 (en) | 1995-06-05 |
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