JPS6220098U - - Google Patents
Info
- Publication number
- JPS6220098U JPS6220098U JP11069085U JP11069085U JPS6220098U JP S6220098 U JPS6220098 U JP S6220098U JP 11069085 U JP11069085 U JP 11069085U JP 11069085 U JP11069085 U JP 11069085U JP S6220098 U JPS6220098 U JP S6220098U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- base
- pivotally connected
- raised
- lowered
- 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
Landscapes
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
第１図〜第３図は、本考案の作業車の折曲げブ
ーム装置を実施した照明車の説明図であつて、第
１図は、折曲げブーム装置を格納した状態の側面
図、第２図は第１図の平面図、第３図は、折曲げ
ブーム装置を起仰させた状態の側面図である。第
４図は、本考案に係る作業車の折曲げブームの他
の実施例の説明図である。
１；車輌、２；基台、４；第１ブーム、６；第
２ブーム、７；起伏駆動装置、８；連結部材。
1 to 3 are explanatory diagrams of a lighting vehicle implementing the folding boom device for a work vehicle according to the present invention, in which FIG. 1 is a side view of the folding boom device in a retracted state; The figure is a plan view of FIG. 1, and FIG. 3 is a side view of the folding boom device in a raised state. FIG. 4 is an explanatory diagram of another embodiment of the folding boom for a working vehicle according to the present invention. 1; Vehicle; 2; Base; 4; First boom; 6; Second boom; 7; Lifting drive device; 8; Connection member.
Claims (1)
自在に枢着連結した第１ブーム４であつて起伏駆
動装置７により起伏駆動される第１ブーム４、第
１ブーム４の先端部にその基端部を起伏自在に枢
着連結した第２ブーム６、および、前記基台２の
適所と前記第２ブーム６の適所間に夫々その端部
を枢着連結して介装され、前記基台２、第１ブー
ム４および第２ブーム６の名部材と共同して四辺
形のリンク機構を構成する連結部材８とを備えて
おり、基台２、第１ブーム４、第２ブーム６およ
び連結部材８で構成された前記四辺形のリンク機
構の各辺の長さを、基台２に対して第１ブーム４
を前記起伏駆動装置７により起伏駆動したとき、
当該起伏駆動によつて生ずる基台２に対する第１
ブーム４の角変動よりも大きい角変動をもつて前
記第２ブーム６を前記第１ブーム４に対して起伏
動するよう設定すると共に、前記第１ブーム４の
倒伏状態においては、前記第２ブーム６が第１ブ
ーム４の上側へ折畳まれた位置をとるよう構成し
てあることを特徴とする作業車の折曲げブーム装
置。 A first boom 4 whose base end is pivotally connected to a base 2 mounted on a vehicle 1 so as to be able to be raised and lowered, and which is driven to be raised and lowered by a raising and lowering drive device 7; the tip of the first boom 4; a second boom 6 whose base end is pivotally connected to the base 2 and the second boom 6 is interposed between a suitable position of the base 2 and a suitable position of the second boom 6, respectively, with the end thereof pivotally connected, It is provided with a connecting member 8 that forms a quadrilateral link mechanism in cooperation with the base 2, the first boom 4, and the second boom 6, and the base 2, the first boom 4, and the second boom The length of each side of the quadrilateral link mechanism composed of the first boom 4 and the connecting member 8 is determined relative to the base 2.
When the is driven up and down by the up and down drive device 7,
The first impact on the base 2 caused by the up-and-down drive
The second boom 6 is set to move up and down with respect to the first boom 4 with an angular variation larger than that of the boom 4, and when the first boom 4 is in a laid down state, the second boom 6 A folding boom device for a working vehicle, characterized in that the boom 6 is configured to take a folded position above the first boom 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985110690U JPH0221519Y2 (en) | 1985-07-18 | 1985-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985110690U JPH0221519Y2 (en) | 1985-07-18 | 1985-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6220098U true JPS6220098U (en) | 1987-02-06 |
| JPH0221519Y2 JPH0221519Y2 (en) | 1990-06-11 |
Family
ID=30989927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985110690U Expired JPH0221519Y2 (en) | 1985-07-18 | 1985-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221519Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01166903U (en) * | 1988-05-16 | 1989-11-22 | ||
| JP2021503685A (en) * | 2017-11-16 | 2021-02-12 | ザ ウィルーバート カンパニーＴｈｅ Ｗｉｌｌ−Ｂｕｒｔ Ｃｏｍｐａｎｙ | Folding lighting tower |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5230184U (en) * | 1975-08-25 | 1977-03-02 |
-
1985
- 1985-07-18 JP JP1985110690U patent/JPH0221519Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5230184U (en) * | 1975-08-25 | 1977-03-02 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01166903U (en) * | 1988-05-16 | 1989-11-22 | ||
| JP2021503685A (en) * | 2017-11-16 | 2021-02-12 | ザ ウィルーバート カンパニーＴｈｅ Ｗｉｌｌ−Ｂｕｒｔ Ｃｏｍｐａｎｙ | Folding lighting tower |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0221519Y2 (en) | 1990-06-11 |