JPS6428455U - - Google Patents
Info
- Publication number
- JPS6428455U JPS6428455U JP12388287U JP12388287U JPS6428455U JP S6428455 U JPS6428455 U JP S6428455U JP 12388287 U JP12388287 U JP 12388287U JP 12388287 U JP12388287 U JP 12388287U JP S6428455 U JPS6428455 U JP S6428455U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- hook
- engagement
- front loader
- work implement
- 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
Landscapes
- Shovels (AREA)
- Operation Control Of Excavators (AREA)
Description
第１図は本考案の実施例を示すフロントローダ
の全体正面図、第２図は油圧回路図、第３図はコ
ントロール装置の平面断面図、第４図は同正面断
面図、第５図は同右側面断面図、第６図はフツク
と係合片の要部拡大図、第７図は第６図の―
線断面図、第８図はフツクと係合片の係合状態を
示す平面断面図、第９図はコントロールボツクス
の正面図、第１０図は第９図の―線に相当す
る他の実施例を示す断面図、第１１図は作業具角
度検出手段の拡大図、第１２図はカム体と感知手
段の拡大図、第１３図はブーム角度検出手段の拡
大図、第１４図は解除レバーの他の実施例を示す
要部拡大図、第１５図はフツクの鈎部の他の実施
例を示す平面図である。
２…フロントローダ、５…ブーム、７…作業具
、８…ブームシリンダ、９…作業具シリンダ、１
２…操作レバー、１３…作業具角度検出手段、１
４…プツシユプルワイヤ、１９，２０…コントロ
ールバルブ、３３…戻しバネ、３４…係合片、３
５…フツク、４９…解除レバー。
Fig. 1 is an overall front view of a front loader showing an embodiment of the present invention, Fig. 2 is a hydraulic circuit diagram, Fig. 3 is a plan sectional view of the control device, Fig. 4 is a front sectional view thereof, and Fig. 5 is a front sectional view of the front loader. 6 is an enlarged view of the main parts of the hook and engagement piece, and FIG. 7 is a sectional view of the same right side.
8 is a plan sectional view showing the engaged state of the hook and the engaging piece, FIG. 9 is a front view of the control box, and FIG. 10 is another embodiment corresponding to the line - in FIG. 9. FIG. 11 is an enlarged view of the work implement angle detection means, FIG. 12 is an enlarged view of the cam body and sensing means, FIG. 13 is an enlarged view of the boom angle detection means, and FIG. 14 is an enlarged view of the release lever. FIG. 15 is an enlarged view of the main part showing another embodiment, and FIG. 15 is a plan view showing another embodiment of the hook portion of the hook. 2...Front loader, 5...Boom, 7...Work tool, 8...Boom cylinder, 9...Work tool cylinder, 1
2... Operation lever, 13... Work implement angle detection means, 1
4... Push-pull wire, 19, 20... Control valve, 33... Return spring, 34... Engaging piece, 3
5...Hook, 49...Release lever.
Claims (1)
るブームシリンダと、該ブームの先端に枢支され
た作業具を上下方向に回動させる作業具シリンダ
とを夫々制御する一対のコントロールバルブを独
立及び同時操作する１本の操作レバーがすりこぎ
揺動自在に設けられ、該操作レバーを中央の中立
位置に戻す戻しバネが設けられ、前記操作レバー
に係合片が設けられ、前記ブーム下げと作業具上
方回動を同時操作する操作レバーの操作位置で、
前記係合片に係脱自在に係合するフツクが設けら
れ、前記作業具とブームのなす角が作業具水平接
地角度になると前記係合片とフツクの係合を解除
する自動解除装置が設けられ、かつ、前記自動解
除装置とは別に、前記係合片とフツクとの係合を
解除させる強制解除手段が設けられたことを特徴
とするフロントローダの水平接地装置。 Independent and simultaneous operation of a pair of control valves that respectively control the boom cylinder that swings the boom of the front loader in the vertical direction, and the work tool cylinder that turns the work tool pivoted at the tip of the boom in the vertical direction. An operating lever is provided to be able to swing freely, a return spring is provided to return the operating lever to a central neutral position, and an engaging piece is provided on the operating lever to lower the boom and move the upper part of the work implement. At the operating position of the control lever that simultaneously controls rotation,
A hook is provided that detachably engages with the engagement piece, and an automatic release device is provided that releases the engagement between the engagement piece and the hook when the angle between the work implement and the boom reaches a horizontal grounding angle of the work implement. A horizontal grounding device for a front loader, characterized in that the horizontal grounding device for a front loader is provided with forced release means for releasing the engagement between the engagement piece and the hook, separately from the automatic release device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12388287U JPH0519392Y2 (en) | 1987-08-12 | 1987-08-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12388287U JPH0519392Y2 (en) | 1987-08-12 | 1987-08-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6428455U true JPS6428455U (en) | 1989-02-20 |
| JPH0519392Y2 JPH0519392Y2 (en) | 1993-05-21 |
Family
ID=31373137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12388287U Expired - Lifetime JPH0519392Y2 (en) | 1987-08-12 | 1987-08-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0519392Y2 (en) |
-
1987
- 1987-08-12 JP JP12388287U patent/JPH0519392Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0519392Y2 (en) | 1993-05-21 |
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