JPH0424595U - - Google Patents
Info
- Publication number
- JPH0424595U JPH0424595U JP6591290U JP6591290U JPH0424595U JP H0424595 U JPH0424595 U JP H0424595U JP 6591290 U JP6591290 U JP 6591290U JP 6591290 U JP6591290 U JP 6591290U JP H0424595 U JPH0424595 U JP H0424595U
- Authority
- JP
- Japan
- Prior art keywords
- telescopic boom
- working part
- support means
- part support
- tip
- 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 2
- 230000003028 elevating effect Effects 0.000 description 1
Description
第１図は本考案のブーム装置の説明図である。
第２図は従来のブーム装置の説明図である。
構造物……Ｂ、伸縮ブーム……１、作業部支持
手段……３、第一リンク……５、第二リンク……
６、伸縮ブーム起伏用リンク機構……８、起伏シ
リンダー……９、連動機構……１０、主動油圧シ
リンダー……１１、従動油圧シリンダー……１２
、作業部支持手段起伏用リンク機構……１３、第
一リンク……１４、第二リンク……１５。
FIG. 1 is an explanatory diagram of the boom device of the present invention.
FIG. 2 is an explanatory diagram of a conventional boom device. Structure...B, Telescoping boom...1, Working part support means...3, First link...5, Second link...
6. Telescopic boom hoisting link mechanism...8, Hoisting cylinder...9, Interlocking mechanism...10, Main hydraulic cylinder...11, Driven hydraulic cylinder...12
, working part support means elevating link mechanism...13, first link...14, second link...15.
Claims (1)
枢着連結し、それぞれその一端部を構造物および
伸縮ブーム基端部適所に枢着連結した第一および
第二リンクの各先端部を回動自在に連結した伸縮
ブーム起伏用リンク機構を設け、且つ伸縮ブーム
の先端寄り位置と伸縮ブーム起伏用リンク機構に
おける第一または第二リンクの先端部間に起伏シ
リンダーを介装し、この起伏シリンダーで伸縮側
ブームを起伏駆動するよう構成すると共に、前記
伸縮ブームの先端部に起伏自在に作業部支持手段
を枢着連結し、且つ前記構造物に対する伸縮ブー
ムの起伏角と反対方向に同量だけ伸縮ブームに対
して前記作業部支持手段が起伏するための連動機
構を設け、前記作業部支持手段が伸縮ブームの起
伏動に係わらず構造物に対する姿勢が維持される
よう構成したブーム構造であつて、前記連動機構
を、 それぞれその一端部を伸縮ブーム先端部および
作業部支持手段の適所に枢着連結した第一および
第二リンクの各先端部を回動自在に連結した作業
部支持手段起伏用リンク機構と、 前記伸縮ブーム起伏用リンク機構の適所と、構
造物または伸縮ブームの基端部適所間に介装した
主動油圧シリンダーと、 前記伸縮ブームの先端部または前記作業部支持
手段と、作業部支持手段起伏用リンク機構の適所
に介装され前記主動油圧シリンダーに連動して伸
縮駆動されるよう主動油圧シリンダーに油圧的に
連動連結した従動側油圧シリンダー、 とで以て構成したことを特徴とするブーム構造。[Claims for Utility Model Registration] A first and second telescopic boom whose base end is pivotally connected to a structure so as to be able to rise and fall freely, and whose respective ends are pivotally connected to the structure and the base end of the telescopic boom at appropriate positions. A telescopic boom hoisting link mechanism is provided in which the tips of each of the two links are rotatably connected, and a hoisting cylinder is provided between the tip of the telescopic boom and the tip of the first or second link in the telescopic boom hoisting link mechanism. interposed therein, and the telescopic boom is driven to raise and lower by this undulating cylinder, and a working part support means is pivotally connected to the tip of the telescopic boom so as to be able to raise and lower, and the telescopic boom is not raised or lowered with respect to the structure. An interlocking mechanism is provided for raising and lowering the working part support means with respect to the telescopic boom by the same amount in a direction opposite to the corner, so that the posture of the working part supporting means with respect to the structure is maintained regardless of the raising and lowering movement of the telescopic boom. In the boom structure configured as such, the interlocking mechanism is configured such that each of the first and second links, each of which has one end pivotally connected to an appropriate position of the telescopic boom tip and the working part support means, is rotatably connected to the interlocking mechanism. a linked working part support means hoisting link mechanism; a main hydraulic cylinder interposed between a proper position of the telescopic boom hoisting link mechanism and a proper position of the base end of the structure or the telescopic boom; and a tip end of the telescopic boom or the working part support means, and a driven side hydraulic cylinder which is interposed at an appropriate position in the working part support means lifting/lowering link mechanism and is hydraulically coupled to the main hydraulic cylinder so as to be driven to expand and contract in conjunction with the main hydraulic cylinder; A boom structure characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6591290U JP2508118Y2 (en) | 1990-06-20 | 1990-06-20 | Boom structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6591290U JP2508118Y2 (en) | 1990-06-20 | 1990-06-20 | Boom structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0424595U true JPH0424595U (en) | 1992-02-27 |
| JP2508118Y2 JP2508118Y2 (en) | 1996-08-21 |
Family
ID=31598173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6591290U Expired - Fee Related JP2508118Y2 (en) | 1990-06-20 | 1990-06-20 | Boom structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508118Y2 (en) |
-
1990
- 1990-06-20 JP JP6591290U patent/JP2508118Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2508118Y2 (en) | 1996-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |