JPH09315771A - Derricking gear of latticed boom crane - Google Patents

Derricking gear of latticed boom crane

Info

Publication number
JPH09315771A
JPH09315771A JP13179696A JP13179696A JPH09315771A JP H09315771 A JPH09315771 A JP H09315771A JP 13179696 A JP13179696 A JP 13179696A JP 13179696 A JP13179696 A JP 13179696A JP H09315771 A JPH09315771 A JP H09315771A
Authority
JP
Japan
Prior art keywords
pin
link
boom
attached
cylinder
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
Application number
JP13179696A
Other languages
Japanese (ja)
Inventor
Yoshihiro Nakajima
義浩 中嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo SHI Construction Machinery Co Ltd
Original Assignee
Sumitomo SHI Construction Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo SHI Construction Machinery Co Ltd filed Critical Sumitomo SHI Construction Machinery Co Ltd
Priority to JP13179696A priority Critical patent/JPH09315771A/en
Publication of JPH09315771A publication Critical patent/JPH09315771A/en
Pending legal-status Critical Current

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  • Jib Cranes (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve the safety and maintainability, so that an operator can work with a feeling of security. SOLUTION: A derricking gear comprises the first link 7 supported by a pin 11 on an upper revolving superstructure 1, a derricking cylinder 6 supported by a pin 12 at a boom 3 side with respect to the first link 7, and the second link supported by a pin 13, at the position closer to the boom 3 in comparison with the derricking cylinder 6, a rope 5 is attached between a pin 9 connecting a pointed end of the first link 7 and a rod end of the derricking cylinder 6, and a pin 1 attached to a top part of the second link 8, and further one end of a pendant rope 4 of which the other end is attached to the pointed end of the boom 3 by a pin 15, is attached to the pin 10.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】この発明は、ラチスブ−ムク
レ−ンの起伏装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for undulating a lattice-mucrane.

【0002】[0002]

【従来の技術】ラチスブ−ム式クレ−ンの起伏装置は、
巻上装置でロ−プを巻取り、また繰り出すことによっ
て、ブ−ムの上げ下げを行っている。図1において、1
は上部旋回体、2は下部走行体である。上部旋回体1上
にブ−ム3がピン14により取付けられている。ブ−ム
3の先端部分ではピン15によりペンダントロ−プ4が
取付けられており、これを引張ることによりブ−ム3を
上げることができる。さて、従来の方式ではペンダント
ロ−プ4にブライドル(図示なし)を取付け、このブラ
イドル内の複数のシ−ブと上部旋回体1側に取付けられ
たベイル内のシ−ブとの間にロ−プを複数回掛け、この
ロ−プを巻取ることによりブ−ム3の上げ動作を行って
いた。
2. Description of the Related Art The undulating device for a lattice boom type crane is
The boom is raised and lowered by winding and unwinding the rope with a winding device. In FIG. 1, 1
Is an upper revolving structure, and 2 is a lower traveling structure. A boom 3 is mounted on the upper swing body 1 by a pin 14. A pendant rope 4 is attached by a pin 15 at the tip of the boom 3, and the boom 3 can be raised by pulling this. In the conventional method, a bridle (not shown) is attached to the pendant rope 4, and a plurality of sheaves in the bridle and a sheave in the bail attached to the upper revolving unit 1 side are placed between the sheaves. The raising operation of the boom 3 is performed by applying a plurality of loops and winding the rope.

【0003】このような装置はロ−プが損傷すると切断
する危険があり、その点検は安全上極めて重要であり、
整備管理者や運転者にとって大きな負担となっている。
また詳細な点検も容易でないため、一定期間でロ−プを
交換する必要があり、費用的にも問題がある。さらに巻
上装置に巻込む場合も乱巻しないよう注意が必要で、こ
れも運転者の負担となっている。
In such a device, there is a risk of cutting when the rope is damaged, and its inspection is extremely important for safety.
It is a heavy burden on maintenance managers and drivers.
In addition, since detailed inspection is not easy, it is necessary to replace the rope within a certain period of time, which causes a cost problem. Furthermore, it is necessary to be careful not to wind the winding device even when it is wound into the hoisting device, which is also a burden on the driver.

【0004】[0004]

【発明が解決しようとする課題】このような問題に鑑
み、安全性及び整備性を向上し、運転者にとって安心し
て作業できる起伏装置を提供することを課題とする。
SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide an undulating device that improves safety and maintainability and enables a driver to work with peace of mind.

【0005】[0005]

【課題を解決するための手段】上部旋回体1上にピン1
1で支持した第一リンク7と、該第一リンク7よりブ−
ム3側でピン12により支持した起伏シリンダ6と、起
伏シリンダ6よりさらにブ−ム3側でピン13により支
持した第二リンク8を有し、第一リンク7の先端と起伏
シリンダ6のロッド端とを結合するピン9と第二リンク
8の頂部に設けたピン10間にロ−プ5を取付け、さら
に一端をブ−ム3の先端にピン15で取付けたペンダン
トロ−プ4の他端を前記ピン10に取付けた。又起伏シ
リンダ6を2段式シリンダ7′にしてストロ−ク不足を
カバ−できるようにした。
Means for Solving the Problems A pin 1 is provided on an upper swing body 1.
The first link 7 supported by 1 and the
The undulating cylinder 6 supported by the pin 12 on the side of the boom 3 and the second link 8 supported by the pin 13 on the side of the boom 3 further on the side of the boom 3 have the tip of the first link 7 and the rod of the undulating cylinder 6. A rope 5 is attached between a pin 9 connecting the ends and a pin 10 provided on the top of the second link 8, and another end of the pendant rope 4 is attached to the tip of the boom 3 with a pin 15. The end was attached to the pin 10. Further, the undulating cylinder 6 is a two-stage cylinder 7'to cover the shortage of stroke.

【0006】[0006]

【発明の実施の形態】図1は本発明に関る起伏装置の側
面図である。図2は起伏装置の拡大斜視図である。上部
旋回体1上にピン11により第一リンク7を、ピン12
によりシリンダ6を、ピン13により第二リンク8を取
付け、第一リンク7と起伏シリンダ6のロッド端にロ−
プ5をピン9により取付け、ロ−プ5のもう一端を第二
リンク上端のピン10によりリンク8と連結し、ピン1
0にはペンダントロ−プ4の一端も取付けられている。
なお図2に示すごとく、第一リンク7、第二リンク8、
起伏シリンダ6はそれぞれ2本宛対をなして構成されて
いる。
1 is a side view of an undulating device according to the present invention. FIG. 2 is an enlarged perspective view of the undulating device. The first link 7 is attached to the upper swing body 1 by the pin 11 and the pin 12 is attached.
The cylinder 6 and the second link 8 by the pin 13, and the rod is attached to the first link 7 and the undulating cylinder 6.
And the other end of the rope 5 is connected to the link 8 by the pin 10 at the upper end of the second link.
At 0, one end of the pendant rope 4 is also attached.
As shown in FIG. 2, the first link 7, the second link 8,
Each of the undulating cylinders 6 is composed of two pairs.

【0007】(作動) ブ−ム3を上げる場合(図3)、 シリンダ6を伸ばすと、第一リンク7がピン11を中心
として機械後方(図の左側)に回転する。第一リンク7
が機械後方へ回転すると、ロ−プ5により継がれた第二
リンク8も第一リンク7と同様にピン13を中心として
機械後方へ回転する。第二リンク8が機械後方へ回転す
るとペンダントロ−プ4が引張られブ−ム3を上げるこ
とができる。
(Operation) When the boom 3 is raised (FIG. 3), when the cylinder 6 is extended, the first link 7 rotates rearwardly of the machine (left side in the figure) about the pin 11. First link 7
When is rotated rearwardly of the machine, the second link 8 connected by the rope 5 is also rotated rearwardly of the machine around the pin 13 like the first link 7. When the second link 8 rotates rearward of the machine, the pendant rope 4 is pulled and the boom 3 can be raised.

【0008】ブ−ム3を下げる場合(図4)、 ブ−ム上げの場合とは逆にシリンダ6を縮めると、第二
リンク8がブ−ム3の自重により前方(図の右側)へ回
転し、ブ−ム3を下げることができる。
When the boom 3 is lowered (FIG. 4), the second link 8 is moved forward (to the right in the figure) by the weight of the boom 3 when the cylinder 6 is contracted contrary to the case of raising the boom. The boom 3 can be rotated and lowered.

【0009】かくして、ブ−ム3を分解・組立及び休車
時などには、ブ−ム3を接地させた状態(図4)から、
最大作業角度(図3)まで上げることができる。
Thus, when disassembling / assembling the boom 3 and when the vehicle is stopped, etc., from the state where the boom 3 is grounded (FIG. 4),
The maximum working angle (Fig. 3) can be raised.

【0010】図5はシリンダのストロ−クが不足した場
合に使用する2段式シリンダの例を示す。
FIG. 5 shows an example of a two-stage type cylinder used when the stroke of the cylinder is insufficient.

【0011】[0011]

【発明の効果】上部旋回体1に取付けた第一リンク7、
第二リンク8、起伏シリンダ6及びこれらリンクと起伏
シリンダの頂部を結ぶロ−プとで起伏装置を構成したの
で、従来の如くブライドルとベイル間のシ−ブを何度も
掛け渡されるロ−プを廃止することができる。このた
め、ロ−プの定期的な交換のための費用及び交換作業を
なくすことができる。又シ−ブとブライドル間を何度も
通過するロ−プがなくなったので、ロ−プの破断による
ブ−ムの落下事故の危険性が減少し、安全性をより向上
することができる。
The first link 7 attached to the upper swing body 1,
The second link 8, the hoisting cylinder 6, and the rope that connects these links with the top of the hoisting cylinder constitute the hoisting device, so that the sheave between the bridle and the bail can be repeatedly passed over as usual. Can be abolished. Therefore, it is possible to eliminate the cost for the regular replacement of the rope and the replacement work. Further, since there is no loop that passes between the sheave and the bridle many times, the risk of a drop accident of the boom due to the break of the rope is reduced, and the safety can be further improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に関る起伏装置の側面図。FIG. 1 is a side view of an undulating device according to the present invention.

【図2】起伏装置の拡大斜視図。FIG. 2 is an enlarged perspective view of an undulating device.

【図3】作動状態を示し、最大作業角度位置を示す。FIG. 3 shows an operating state and shows a maximum working angular position.

【図4】同じくブ−ム接地時を示す。FIG. 4 is a view showing a state when the boom is grounded.

【図5】2段式シリンダを示す。FIG. 5 shows a two-stage cylinder.

【符号の説明】[Explanation of symbols]

1 上部旋回体 2 下部走行体 3 ブ−ム 4 ペンダントロ−
プ 5 ロ−プ 6 起伏シリンダ 7 第一リンク 7′ 二段式シリン
ダ 8 第二リンク 9〜15 ピン
1 Upper revolving structure 2 Lower traveling structure 3 Boom 4 Pendant roll
Pull 5 Rope 6 Lifting cylinder 7 1st link 7'Two-stage cylinder 8 2nd link 9-15 pins

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 上部旋回体(1)上にピン(11)で支持した
第一リンク(7)と、該第一リンク(7)よりブ−ム(3)側
でピン(12)により支持した起伏シリンダ(6)と、起伏シ
リンダ(6)よりさらにブ−ム(3)側でピン(13)により支
持した第二リンク(8)を有し、第一リンク(7)の先端と
起伏シリンダ(6)のロッド端とを結合するピン(9)と第
二リンク(8)の頂部に設けたピン(10)間にロ−プ(5)を
取付け、さらに一端をブ−ム(3)の先端にピン(15)で取
付けたペンダントロ−プ(4)の他端を前記ピン(10)に取
付けたラチスブ−ムクレ−ンの起伏装置。
1. A first link (7) supported on an upper revolving structure (1) by a pin (11), and a pin (12) supported on the boom (3) side of the first link (7). The undulating cylinder (6) and the second link (8) supported by the pin (13) on the side of the boom (3) with respect to the undulating cylinder (6). A rope (5) is attached between a pin (9) connecting the rod end of the cylinder (6) and a pin (10) provided on the top of the second link (8), and one end of the boom (3) is attached. ) A device for raising and lowering the lattice boom crane in which the other end of the pendant rope (4) attached to the tip of (4) is attached to the pin (10).
【請求項2】 起伏シリンダ(6)を2段式シリンダ
(7′)にした請求項1のラチスブ−ムクレ−ンの起伏装
置。
2. The undulating cylinder (6) is a two-stage type cylinder.
(7 ') The undulating device for a lattice boom crane according to claim 1.
JP13179696A 1996-05-27 1996-05-27 Derricking gear of latticed boom crane Pending JPH09315771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13179696A JPH09315771A (en) 1996-05-27 1996-05-27 Derricking gear of latticed boom crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13179696A JPH09315771A (en) 1996-05-27 1996-05-27 Derricking gear of latticed boom crane

Publications (1)

Publication Number Publication Date
JPH09315771A true JPH09315771A (en) 1997-12-09

Family

ID=15066331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13179696A Pending JPH09315771A (en) 1996-05-27 1996-05-27 Derricking gear of latticed boom crane

Country Status (1)

Country Link
JP (1) JPH09315771A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102372233A (en) * 2010-08-06 2012-03-14 利勃海尔爱茵根有限公司 Lattice piece and crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102372233A (en) * 2010-08-06 2012-03-14 利勃海尔爱茵根有限公司 Lattice piece and crane

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