JPS59146389U - Crane jib extension device - Google Patents
Crane jib extension deviceInfo
- Publication number
- JPS59146389U JPS59146389U JP4032683U JP4032683U JPS59146389U JP S59146389 U JPS59146389 U JP S59146389U JP 4032683 U JP4032683 U JP 4032683U JP 4032683 U JP4032683 U JP 4032683U JP S59146389 U JPS59146389 U JP S59146389U
- Authority
- JP
- Japan
- Prior art keywords
- jib
- boom
- stage telescopic
- top boom
- fixed
- 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.)
- Pending
Links
Landscapes
- Jib Cranes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、本考案の１実施例を示すものでありジブを多
段伸縮ブームの横側面に折りたたみ格納した姿勢を示す
側面図、第２図は、ロッドの１実施例を示す説明図、第
３図は、ロッドをジブと多段伸縮ブーム間に配設した側
面図、第４図は、ジブの回動中の様子を示す平面図、第
５図は、ジブをトップブームの前方へ伸展した様子を示
す平面図である。
Ａ：多段伸縮ブーム、１９ニドツブブーム、Ｂ：ジブ、
Ｃ：ロッド、１８：連結ピン。Fig. 1 is a side view showing one embodiment of the present invention in which the jib is folded and stored on the side surface of a multi-stage telescopic boom; Fig. 2 is an explanatory diagram showing one embodiment of the rod; Figure 3 is a side view of the rod placed between the jib and the multi-stage telescopic boom, Figure 4 is a plan view showing the jib rotating, and Figure 5 is the jib extended in front of the top boom. FIG. 3 is a plan view showing the situation. A: Multi-stage telescopic boom, 19-nidotsubu boom, B: Jib,
C: Rod, 18: Connecting pin.
Claims (1)
の基端部を起伏自在に枢支された多段伸縮ブーム、この
多段伸縮ブームの横側面に折りたたみ格納された格納姿
勢と、この多段伸縮ブームの先端側のトップブーム先端
に継ぎ足された作業姿勢をとるジブ、その両端部に連結
部を有すると共にこの連結部間距離を調整自在に形成さ
れ前記ジブの格納姿勢から作業姿勢への変更に際しては
一方の連結部が多段伸縮ブームの固定側ブームに他方の
連結部がジブ側に夫々止着され前記トップブームの縮小
動に連動してジブをトップブームの前方へ回動伸展させ
るためのロッド、ジブとトップブーム間に設けられ、前
記ジブがトップブームの前方に伸展したときにジブをト
ップブームに自動的に連結する連結ピンよりなることを
特徴とするクレーンのジブ張出装置。A swivel base mounted on the vehicle so that it can rotate freely, a multi-stage telescopic boom whose base end is pivotally supported on the swivel base so that it can be raised and lowered freely, a storage position in which the multi-stage telescopic boom is folded and stored on the side surface, and a storage position of the multi-stage telescopic boom. A jib attached to the top boom tip on the tip side of a telescoping boom to take a working posture, and having connecting portions at both ends thereof, the distance between the connecting portions being formed to be adjustable, and changing the jib from a stored posture to a working posture. In this case, one connecting part is fixed to the fixed side boom of the multi-stage telescopic boom, and the other connecting part is fixed to the jib side, respectively, so that the jib can be rotated and extended in front of the top boom in conjunction with the retracting movement of the top boom. A jib extending device for a crane, comprising a rod, a connecting pin provided between the jib and the top boom, and automatically connecting the jib to the top boom when the jib is extended forward of the top boom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4032683U JPS59146389U (en) | 1983-03-18 | 1983-03-18 | Crane jib extension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4032683U JPS59146389U (en) | 1983-03-18 | 1983-03-18 | Crane jib extension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59146389U true JPS59146389U (en) | 1984-09-29 |
Family
ID=30170948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4032683U Pending JPS59146389U (en) | 1983-03-18 | 1983-03-18 | Crane jib extension device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59146389U (en) |
-
1983
- 1983-03-18 JP JP4032683U patent/JPS59146389U/en active Pending
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