JPS61191389U - - Google Patents
Info
- Publication number
- JPS61191389U JPS61191389U JP7691385U JP7691385U JPS61191389U JP S61191389 U JPS61191389 U JP S61191389U JP 7691385 U JP7691385 U JP 7691385U JP 7691385 U JP7691385 U JP 7691385U JP S61191389 U JPS61191389 U JP S61191389U
- Authority
- JP
- Japan
- Prior art keywords
- jib
- boom
- auxiliary
- base
- distal end
- 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 1
- 238000000034 method Methods 0.000 description 1
Description
第１図は本考案実施例に係る補助ジブの取付構
造をもつトラツククレーンのブーム並びに補助ジ
ブ部分の斜視図、第２図は第１図の―縦断面
図、第３図Ａないし第３図Ｄは補助ジブの張り出
し操作手順図である。
１……ブーム、２……補助ジブ、３……ジブ本
体、４……ジブ連結基台、５……連結部材、６…
…抱持部材、２１，２２……連結ピン。
Fig. 1 is a perspective view of the boom and auxiliary jib portion of a truck crane having an auxiliary jib mounting structure according to an embodiment of the present invention, Fig. 2 is a vertical sectional view of Fig. 1, and Figs. 3A to 3 D is a procedure diagram for extending the auxiliary jib. DESCRIPTION OF SYMBOLS 1...Boom, 2...Auxiliary jib, 3...Jib main body, 4...Jib connection base, 5...Connection member, 6...
...Holding member, 21, 22... Connection pin.
Claims (1)
ブーム前方に向けて延出配置される張り出し位置
と該ブーム１の側方に横抱き状態で格納される格
納位置の２位置に択一的に位置決めされる補助ジ
ブ２とを有する補助ジブ付クレーンにおいて、上
記補助ジブ２が、適宜長さをもつジブ本体３と該
ジブ本体３を上記ブーム１の先端部１ｂに連結固
定するためのジブ連結基台４とで構成されるとと
もに、上記ジブ連結基台４は、上記ブーム１の軸
方向に略直交する方向に適宜離間させて配置した
左右一対の連結ピン２１，２２によつて該ブーム
１の先端部１ｂに着脱自在に連結可能であり且つ
上記一対の連結ピン２１，２２のうちの一方２１
又は２２を中心として枢回動可能とされた連結部
材５と、該連結部材５に対して該連結部材５の枢
回動方向に相対回動自在に枢支されるとともに上
記補助ジブ２をその軸方向に摺動変位自在に抱持
する抱持部材６とを有しており、さらに上記補助
ジブの格納位置において上記ジブ本体３が、その
基端部３ａを上記ブーム１の基端部１ａ側に、先
端部３ｂを上記ブーム１の先端部１ｂ側にそれぞ
れ向けた状態でしかも該ジブ本体３の軸方向に摺
動変位自在に支持されており、上記ジブ連結基台
４を上記左右一対の連結ピン２１，２２のうちの
一方の連結ピン２１又は２２により上記ブーム１
の先端部１ｂに枢動自在に連結した状態において
上記ジブ本体３をその先端部３ｂ側に引き出すと
き、上記ジブ連結基台４の連結部材５と抱持部材
６とが適宜に相対回動して該ジブ連結基台４が、
上記ジブ本体３をその張り出し位置に位置決めす
る如く上記ブーム１の先端部１ｂに振り出される
ように構成されていることを特徴とする補助ジブ
付クレーンにおける補助ジブの取付構造。 The boom 1 is selectively positioned in two positions at the tip end 1b of the boom 1: an extended position extending toward the front of the boom and a retracted position stored sideways on the side of the boom 1. In the crane with an auxiliary jib 2, the auxiliary jib 2 includes a jib body 3 having an appropriate length and a jib connection base for connecting and fixing the jib body 3 to the tip end 1b of the boom 1. 4, and the jib connecting base 4 is connected to the tip of the boom 1 by a pair of left and right connecting pins 21 and 22 that are appropriately spaced apart from each other in a direction substantially orthogonal to the axial direction of the boom 1. One 21 of the pair of connecting pins 21 and 22 can be detachably connected to the portion 1b.
or 22, and a connecting member 5 which is pivotally pivotable about the connecting member 5, and the auxiliary jib 2 is pivotably supported relative to the connecting member 5 in the pivoting direction of the connecting member 5. It has a holding member 6 that holds the auxiliary jib so as to be slidably displaced in the axial direction, and further, in the storage position of the auxiliary jib, the jib main body 3 has its base end 3a attached to the base end 1a of the boom 1. The jib body 3 is supported so as to be slidable in the axial direction of the jib main body 3, with the distal end portions 3b facing toward the distal end portion 1b of the boom 1, and the jib connecting base 4 is connected to the left and right pair of jib connecting bases 4. The boom 1 is connected by one of the connecting pins 21 and 22 of the
When the jib main body 3 is pulled out toward the distal end 3b side while being pivotally connected to the distal end 1b of the jib body 3, the connecting member 5 and the holding member 6 of the jib connecting base 4 rotate relative to each other as appropriate. The jib connection base 4 is
A mounting structure for an auxiliary jib in a crane with an auxiliary jib, characterized in that the jib body 3 is swung out from the tip end 1b of the boom 1 so as to position the jib body 3 at its extended position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7691385U JPH0318471Y2 (en) | 1985-05-22 | 1985-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7691385U JPH0318471Y2 (en) | 1985-05-22 | 1985-05-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61191389U true JPS61191389U (en) | 1986-11-28 |
| JPH0318471Y2 JPH0318471Y2 (en) | 1991-04-18 |
Family
ID=30619491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7691385U Expired JPH0318471Y2 (en) | 1985-05-22 | 1985-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318471Y2 (en) |
-
1985
- 1985-05-22 JP JP7691385U patent/JPH0318471Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0318471Y2 (en) | 1991-04-18 |
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