JPH0199890U - - Google Patents
Info
- Publication number
- JPH0199890U JPH0199890U JP19551887U JP19551887U JPH0199890U JP H0199890 U JPH0199890 U JP H0199890U JP 19551887 U JP19551887 U JP 19551887U JP 19551887 U JP19551887 U JP 19551887U JP H0199890 U JPH0199890 U JP H0199890U
- Authority
- JP
- Japan
- Prior art keywords
- pair
- jib
- jib body
- tip
- support shaft
- 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
Landscapes
- Jib Cranes (AREA)
Description
第１図は、本考案の継ぎ足しジブの起伏装置の
側面図、第２図は第１図の一部拡大平面図、第３
図は他の実施例の説明図、第４図および第５図は
、従来の継ぎ足しジブの起伏装置であつて、第４
図は側面図、第５図は平面図である。
継ぎ足しジブ；Ａ、伸縮ブーム；１、ジブ本体
；３、テンシヨン部材；４，４、ブラケツト；６
，６、長孔；７，７、移動支軸；８、油圧シリン
ダ；９。
Fig. 1 is a side view of the luffing device of the supplementary jib of the present invention, Fig. 2 is a partially enlarged plan view of Fig. 1, and Fig. 3
The figure is an explanatory diagram of another embodiment, and FIGS. 4 and 5 show a conventional luffing device for a replenishing jib.
The figure is a side view, and FIG. 5 is a plan view. Additional jib; A, telescopic boom; 1, jib body; 3, tension member; 4, 4, bracket; 6
, 6. Long hole; 7, 7. Moving support shaft; 8. Hydraulic cylinder; 9.
Claims (1)
その基端部両側を回動並びに取り外し自在に取り
付けられたジブ本体と、その先端を継ぎ足しジブ
本体の先端部適所に連結されその先端を伸縮ブー
ムの先端上部に着脱自在に連結され伸縮ブームに
取り付けられたジブ本体を伸縮ブームに対して所
定のチルト角度に維持する左右一対のテンシヨン
部材を備えてなる継ぎ足しジブの起伏装置であつ
て、ジブ本体の先端部上側に当該ジブ本体の長手
方向に沿つて立設され且つジブ本体の長手方向に
沿う長孔を備えた左右一対のブラケツトを設ける
と共に、これら左右一対のブラケツトの長孔間に
橋架状に配設された移動支軸を設け、この移動支
軸における左右一対のブラケツト間部分と、前記
長孔の基端側よりもジブ本体基端寄りのジブ本体
適所間に油圧シリンダを介装し、前記左右一対の
テンシヨンロツドの先端部を夫々前記移動支軸に
取り付けてあることを特徴とする継ぎ足しジブの
起伏装置。 On the support shaft protruding on both sides of the bottom of the telescopic boom,
The jib body is attached to both sides of the base end so that it can be rotated and removed, and the tip is connected to the tip of the jib body in an appropriate position, and the tip is detachably connected to the top of the tip of the telescopic boom and attached to the telescopic boom. This is a supplementary jib hoisting device comprising a pair of left and right tension members for maintaining the jib body at a predetermined tilt angle with respect to the telescopic boom. A pair of left and right brackets are provided that are erected upright and have elongated holes along the longitudinal direction of the jib body, and a movable support shaft that is disposed like a bridge between the elongated holes of the left and right pair of brackets is provided to facilitate this movement. A hydraulic cylinder is interposed between a portion of the support shaft between the pair of left and right brackets and a proper position of the jib body closer to the base end of the jib body than the base end side of the elongated hole, and the distal end portions of the pair of left and right tension rods are moved as described above, respectively. A luffing device for a supplementary jib characterized by being attached to a support shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19551887U JPH0518373Y2 (en) | 1987-12-22 | 1987-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19551887U JPH0518373Y2 (en) | 1987-12-22 | 1987-12-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0199890U true JPH0199890U (en) | 1989-07-04 |
| JPH0518373Y2 JPH0518373Y2 (en) | 1993-05-17 |
Family
ID=31486191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19551887U Expired - Lifetime JPH0518373Y2 (en) | 1987-12-22 | 1987-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0518373Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020066516A (en) * | 2018-10-25 | 2020-04-30 | 株式会社加藤製作所 | Gib raising/lowering mechanism and crane truck with jib raising/lowering mechanism |
-
1987
- 1987-12-22 JP JP19551887U patent/JPH0518373Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020066516A (en) * | 2018-10-25 | 2020-04-30 | 株式会社加藤製作所 | Gib raising/lowering mechanism and crane truck with jib raising/lowering mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0518373Y2 (en) | 1993-05-17 |