JPS6283095U - - Google Patents
Info
- Publication number
- JPS6283095U JPS6283095U JP17401985U JP17401985U JPS6283095U JP S6283095 U JPS6283095 U JP S6283095U JP 17401985 U JP17401985 U JP 17401985U JP 17401985 U JP17401985 U JP 17401985U JP S6283095 U JPS6283095 U JP S6283095U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- jib
- telescopic boom
- link
- pivotally connected
- 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
- Jib Cranes (AREA)
Description
第１図は従来のジブの回動装置を取り付けた移
動式クレーンの側面図、第２図は第１図における
伸縮ブームの先端部分の拡大平面図、第３図は本
考案に係るジブの回動装置を取り付けた移動式ク
レーンの側面図、第４図は第３図における伸縮ブ
ームの先端部分の拡大平面図である。
伸縮ブーム；１、最内側ブーム；４、枢着連結
；７、係止装置；８、ジブ；６、ジブの回動装置
；１０、第１リンク；１２、第２リンク；１４、
ワイヤーロープ；１８。
Figure 1 is a side view of a mobile crane equipped with a conventional jib rotating device, Figure 2 is an enlarged plan view of the tip of the telescopic boom in Figure 1, and Figure 3 is a rotating jib according to the present invention. FIG. 4 is an enlarged plan view of the tip of the telescopic boom in FIG. 3. Telescopic boom; 1, innermost boom; 4, pivot connection; 7, locking device; 8, jib; 6, jib rotation device; 10, first link; 12, second link; 14,
Wire rope; 18.
Claims (1)
嵌挿してなる伸縮ブーム１の最内側ブーム４の先
端一側にジブ６の基端一側を枢着連結７し、この
枢着連結７部を中心に、ジブ６を伸縮ブーム１の
先端に張り出した張り出し位置と伸縮ブーム１の
側面に沿つて反転折畳んだ折畳み位置との間で回
動できるようにすると共に、最内側ブーム４の先
端他側とジブの基端他側間へジブ６を前記張り出
し位置に保つ係止装置８を設けてなる伸縮ブーム
・ジブ集合体に用いられるジブの回動装置であつ
て、伸縮ブーム１の最内側ブーム４の先端適所に
一端を枢着連結１１した第１リンク１２と、ジブ
６の基端適所に一端を枢着連結した第２リンク１
４を設けこれら第１および第２リンクの各他端側
を互に枢着連結１５し、第１および第２リンク１
２，１４の各他端側の前記枢着連結１５部が第１
リンク１２と最内側ブーム４との枢着連結１１部
を中心に伸縮ブームの基端方向へ回動したとき折
畳み位置にあるジブ６が張り出し位置に回動移動
するように構成すると共に、前記第１又は第２リ
ンク１２，１４の適所へその一端を連結され他端
を伸縮ブーム１の最外側ブーム２の基端適所に取
り外し自在に連結したワイヤーロープ１８を具え
てなるジブの回動装置。 One side of the proximal end of the jib 6 is pivotally connected to one side of the distal end of the innermost boom 4 of the telescopic boom 1, which is formed by telescopically inserting the inner boom into the outer boom in order, and this pivoted connection 7 is connected. At the center, the jib 6 can be rotated between an extended position where it is extended from the tip of the telescopic boom 1 and a folded position where it is inverted and folded along the side of the telescopic boom 1, and the tip of the innermost boom 4, etc. A jib rotation device used in a telescopic boom/jib assembly, which is provided with a locking device 8 between one side and the other side of the base end of the jib to keep the jib 6 in the extended position, A first link 12 whose one end is pivotally connected 11 to an appropriate position at the tip of the boom 4, and a second link 1 whose one end is pivotally connected to an appropriate position at the proximal end of the jib 6.
4, the other end sides of the first and second links are pivotally connected 15 to each other, and the first and second links 1
The pivot connection 15 on the other end side of each of 2 and 14 is the first
The jib 6 in the folded position is pivoted to the extended position when the telescopic boom is pivoted toward the proximal end of the telescopic boom about the pivot connection 11 between the link 12 and the innermost boom 4. A jib rotation device comprising a wire rope 18 having one end connected to a proper position of the first or second link 12, 14 and the other end removably connected to a proper position of the proximal end of the outermost boom 2 of the telescopic boom 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985174019U JPH048152Y2 (en) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985174019U JPH048152Y2 (en) | 1985-11-11 | 1985-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6283095U true JPS6283095U (en) | 1987-05-27 |
| JPH048152Y2 JPH048152Y2 (en) | 1992-03-02 |
Family
ID=31112025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985174019U Expired JPH048152Y2 (en) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048152Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4828222U (en) * | 1971-08-06 | 1973-04-06 |
-
1985
- 1985-11-11 JP JP1985174019U patent/JPH048152Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4828222U (en) * | 1971-08-06 | 1973-04-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH048152Y2 (en) | 1992-03-02 |
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