JPH03216491A - Crane device of cargo handling vehicle - Google Patents

Crane device of cargo handling vehicle

Info

Publication number
JPH03216491A
JPH03216491A JP723690A JP723690A JPH03216491A JP H03216491 A JPH03216491 A JP H03216491A JP 723690 A JP723690 A JP 723690A JP 723690 A JP723690 A JP 723690A JP H03216491 A JPH03216491 A JP H03216491A
Authority
JP
Japan
Prior art keywords
boom
rear end
cargo handling
handling vehicle
turning radius
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
JP723690A
Other languages
Japanese (ja)
Inventor
Yukio Kinoshita
木下 幸夫
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.)
KOMATSU METSUKU KK
Komatsu Ltd
Komatsu MEC Corp
Original Assignee
KOMATSU METSUKU KK
Komatsu Ltd
Komatsu MEC Corp
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 KOMATSU METSUKU KK, Komatsu Ltd, Komatsu MEC Corp filed Critical KOMATSU METSUKU KK
Priority to JP723690A priority Critical patent/JPH03216491A/en
Publication of JPH03216491A publication Critical patent/JPH03216491A/en
Pending legal-status Critical Current

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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

【発明の詳細な説明】 (産業上の利用分野) この発明は移動式クレーン車等の荷役車゛両におけるブ
ームと旋回台フレームの構成に関するものである. (従来の技術) 第3図は従来の移動式クレーン車の走行姿勢時の側面図
であり,第4図は同じく作業姿勢時の前面図である。
[Detailed Description of the Invention] (Industrial Application Field) This invention relates to the structure of a boom and a swivel frame in a cargo handling vehicle such as a mobile crane truck. (Prior Art) FIG. 3 is a side view of a conventional mobile crane vehicle in a running position, and FIG. 4 is a front view of the same in a working position.

第3図の走行姿勢の状態からブームシリンダaを伸長す
ると第1ブームbはフートピンCを中心として上方へ回
動し,旋回中央線d−dを中心にして旋回台フレームe
を水平面内において90″旋回すると第4図に示した姿
勢になり,さらにブーム伸縮装置(図示せず)を作動さ
せると第2ブームr.第3ブームgが伸縮するようにな
っている. hはフック.iはウインチローブ用ガイドシーブ.jは
ウインチであり,pは車体からのブームオーバハング量
.qは走行時の後端旋回半径.rは作業時の後端旋回半
径で,Sは塀などの障害物を示す. (発明が解決しようとする課題) 上記従来の移動式クレーン車においては,走行時の安定
性をはかるため.車体からのブームオーバハング量pが
小さくなるように.かつまた吊り揚程を大きくするよう
に,フートビンCを車体後方へ設置するが.それにとも
ないウインチjも後方へ移動させる必要がでて.作業時
の後端旋回半径『が大きくなり,狭所作業性が極めて悪
いという大きいrIR!!!!があった。
When the boom cylinder a is extended from the running position shown in FIG.
When it is rotated 90'' in a horizontal plane, it assumes the attitude shown in Figure 4, and when the boom extension/retraction device (not shown) is activated, the second boom r and the third boom g are extended and retracted.h is the hook. i is the guide sheave for the winch lobe. j is the winch, p is the amount of boom overhang from the vehicle body, q is the rear end turning radius when traveling, r is the rear end turning radius when working, and S is the wall (Problems to be Solved by the Invention) In the above-mentioned conventional mobile crane vehicle, in order to ensure stability when traveling, the boom overhang amount p from the vehicle body is reduced. In order to increase the lifting height, the foot bin C is installed at the rear of the vehicle body.As a result, the winch J also needs to be moved to the rear.The turning radius of the rear end becomes large during work, making it extremely difficult to work in narrow spaces. There was a big rIR that was bad!!!!!

(課題を解決するための手段及び作用)この発明は上記
問題を解消するためになされたものであって.次の3つ
の手段及び作用よりなるものである。
(Means and effects for solving the problem) This invention was made to solve the above problem. It consists of the following three means and actions.

すなわち (1)  ブーム格納時には第2ブーム以降の後部が第
1ブームの後方より突出するように構成することにより
.吊り揚程を大きくして,かつ車体からのオーバハング
量を小さくする。
That is, (1) by configuring the rear part of the second and subsequent booms to protrude from the rear of the first boom when the boom is retracted. Increase the lifting height and reduce the amount of overhang from the vehicle body.

(2)  ウインチ装置を第1ブームの後端より前方,
あるいは旋回台フレームの後端よ前方の第1ブーム上に
設置することにより.フートピンの設置位置より前方に
該ウインチ装置を設置できて.走行時の後端旋回半径が
ウインチの設置位置によって大きくなるという従来の問
題点が解消する。
(2) Place the winch device in front of the rear end of the first boom.
Or by installing it on the first boom in front of the rear end of the swivel frame. The winch device can be installed ahead of the foot pin installation position. This solves the conventional problem that the turning radius of the rear end during travel increases depending on the installation position of the winch.

(3)  ブーム装置を伸長してゆくと,上記第1項で
説明したブーム格納時に第1ブームの後方より突出して
いた第2ブーム以降の後部が前方へ移動するように構成
することにより,作業時の後端旋回半径が走行時の後端
旋回半径より小さくなる. (実施例) 次にこの発明の実施例を図面に基いて説明する。
(3) As the boom device is extended, the rear parts of the second and subsequent booms that protrude from the rear of the first boom when the boom is retracted as explained in paragraph 1 above move forward, making it easier to carry out work. The rear end turning radius when the vehicle is running is smaller than the rear end turning radius when the vehicle is running. (Example) Next, an example of the present invention will be described based on the drawings.

第1図は走行姿勢時の側面図であり,第2図は作業姿勢
時の前面図である。
Fig. 1 is a side view of the machine in a running position, and Fig. 2 is a front view of the machine in a working position.

第1図の走行姿勢の状態からブームシリンダ1を伸長す
ると第1ブーム2はフートビン3を中心にして上方へ回
動し,旋回中心線4−4を中心にして旋回台フレーム5
を水平面内において90@旋回し,さらにブーム伸縮装
N(図示せず)を作動させると第2ブーム6,第3プー
ム7が伸長し第2図に示した作業姿勢゜になる。
When the boom cylinder 1 is extended from the running position shown in FIG.
When the boom is rotated 90 degrees in a horizontal plane and the boom telescoping device N (not shown) is activated, the second boom 6 and the third boom 7 are extended to take the working position shown in FIG.

8はフック,9はウインチロープ,10はウインチ装置
であり,Pは車体からのブームオーバハング量,Qは走
行時の後端旋回半径,Rは作業時の後端旋回半径である
, そしてこの発明の実施例における特徴は次の3点である
8 is a hook, 9 is a winch rope, 10 is a winch device, P is the amount of boom overhang from the vehicle body, Q is the rear end turning radius when traveling, R is the rear end turning radius when working, and this invention The features of this embodiment are as follows.

(1)  第1図の走行姿勢におけるブーム格納時に第
2ブーム6 (内部に第3ブーム7も包含する)の後部
6lが第1ブーム2の後方より突出しているので,吊り
揚程を大きくして,かつ車体からのブームオーバハング
量Pが小さくできて,走行時の安定性が良い。
(1) When the boom is stored in the traveling position shown in Figure 1, the rear part 6l of the second boom 6 (including the third boom 7 inside) protrudes from the rear of the first boom 2, so the lifting height can be increased. , and the boom overhang amount P from the vehicle body can be reduced, resulting in good stability during running.

(2)  ウインチ装置lOを第1ブーム2の後端2,
より前方,あるいは旋回台フレーム5の後端5Iより前
方の第1ブーム2上に設置してあるので,フートピン3
の設置位置より前方にウインチ2を設置でき.上記従来
の第3図において説明した走行時の後端旋回半径qがウ
インチjの設置位置によって大きくなるという問題点が
解才肖する. (3)  ブームを伸長するとともに第1ブーム2の後
端2.から後方に突出していた第2ブーム6及びそれ以
IS(この実施例では第3ブーム7)の後端61(第1
図では二点鎖線の斜線を施して或る部分)が前方へ移動
し第2図に示した6!の位W(第2図に二点鎖線の斜線
を施した部位)へ移動するので,作業時の後端旋回半径
Rが走行時の後端旋回半径Qより小.すなわち次の(イ
)式が成立する。
(2) Connect the winch device lO to the rear end 2 of the first boom 2,
Since it is installed on the first boom 2 further forward or in front of the rear end 5I of the swivel frame 5, the foot pin 3
Winch 2 can be installed ahead of the installation position. This solves the problem that the rear end turning radius q during running increases depending on the installation position of the winch j, which was explained in Fig. 3 of the conventional vehicle. (3) Extend the boom and extend the rear end 2 of the first boom 2. The rear end 61 (the first
In the figure, the part indicated by the diagonal double-dashed line) moves forward, and the 6! shown in Figure 2! Since the rear end turning radius R during work is smaller than the rear end turning radius Q during traveling, the rear end turning radius R is smaller than the rear end turning radius Q during running. In other words, the following equation (a) holds true.

Q>R       ・・・−−−−−  (イ)従っ
て狭所作業性が大きく向上するものである。
Q>R (a) Therefore, workability in narrow spaces is greatly improved.

(発明の効果) この発明は以上詳述したようにしてなるので,トラック
クレーン車等の荷役車両のクレーン装置において.吊り
揚程を大きくするためにブームを長尺化しても走行時の
安全性が確保され併せて狭所作業性が向上するという大
きい効果を奏するものである.
(Effects of the Invention) Since the present invention is made as detailed above, it can be applied to a crane device for a cargo handling vehicle such as a truck crane vehicle. Even if the boom is lengthened to increase the lifting height, it has the great effect of ensuring safety during travel and improving workability in narrow spaces.

【図面の簡単な説明】 第1図はこの発明の実施例である移動式クレーン車の走
行姿勢時の側面図.第2図は同しく作業姿勢時の前面図
,第3図は従来の移動式クレーン車の走行姿勢時の側面
図,第4図は同じく作業姿勢時の前面図である。
[Brief Description of the Drawings] Figure 1 is a side view of a mobile crane vehicle according to an embodiment of the present invention in a running position. FIG. 2 is a front view of a conventional mobile crane vehicle in a working position, FIG. 3 is a side view of a conventional mobile crane vehicle in a running position, and FIG. 4 is a front view of the conventional mobile crane vehicle in a working position.

Claims (1)

【特許請求の範囲】[Claims] ブームと旋回フレームとを有する荷役車両のクレーン装
置において、ブーム格納時には第1ブーム後方より第2
ブーム以降のブームの後部が突出し、ウインチ装置が第
1ブーム後端あるいは旋回台フレーム後端より前方の第
1ブーム上に設置され、作業時にブームを伸長するとと
もに第1ブームから後方へ突出していた第2ブーム以降
のブームの後部が、第1ブーム後端より前方へ移動する
ことにより、作業時後端旋回半径が小さくなることを特
徴とする荷役車両のクレーン装置。
In a crane device for a cargo handling vehicle that has a boom and a revolving frame, when the boom is retracted, the second boom is moved from the rear of the first boom.
The rear part of the boom after the boom protruded, and the winch device was installed on the first boom in front of the rear end of the first boom or the rear end of the swivel frame, and when the boom was extended during work, it protruded backward from the first boom. A crane device for a cargo handling vehicle, characterized in that the rear ends of the second and subsequent booms move forward from the rear ends of the first booms, thereby reducing the turning radius of the rear ends during work.
JP723690A 1990-01-18 1990-01-18 Crane device of cargo handling vehicle Pending JPH03216491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP723690A JPH03216491A (en) 1990-01-18 1990-01-18 Crane device of cargo handling vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP723690A JPH03216491A (en) 1990-01-18 1990-01-18 Crane device of cargo handling vehicle

Publications (1)

Publication Number Publication Date
JPH03216491A true JPH03216491A (en) 1991-09-24

Family

ID=11660364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP723690A Pending JPH03216491A (en) 1990-01-18 1990-01-18 Crane device of cargo handling vehicle

Country Status (1)

Country Link
JP (1) JPH03216491A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0429590U (en) * 1990-06-29 1992-03-10
JP2003063778A (en) * 2001-08-28 2003-03-05 Tadano Ltd Mobile crane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0429590U (en) * 1990-06-29 1992-03-10
JP2003063778A (en) * 2001-08-28 2003-03-05 Tadano Ltd Mobile crane

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