JPS58134392U

JPS58134392U - mobile crane

Info

Publication number: JPS58134392U
Application number: JP3132282U
Authority: JP
Inventors: 佐々　松音
Original assignee: 日立建機株式会社
Priority date: 1982-03-08
Filing date: 1982-03-08
Publication date: 1983-09-09

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

[Brief explanation of the drawing]

第１図及び第２図は従来の移動式クレーンの作業姿勢を
示す側面図及び非作業姿勢を示す側面図、第３図はブー
ムあおり止め用バックストップの断面図、第４図は非作
業姿勢においてＡフレームを高ガン）　ＩＪ−位置に変
更した状態の側面図、第５図及び第６図は本考案の移動
式クレーンを示し、第５図は低ガントリー位置にあるＡ
フレームを高ガントリー位置に変更しようと（７ている
状態の側面図、第６図はＡフレームが高ガントリー位置
に変更した状態の側面図、第７図は第５図及び第６図に
おけるブームあおり止め用バックストップの断面図であ
る。１・・・クレーン本体、２・・・分割形ラチスブーム、
２Ａ・・・下部ブーム、２Ｂ・・・上部ブーム、３・・
・Ａフレーム、３Ａ・・・前脚、３Ｂ・・・後脚、６・
・・ブーム起伏装置、１２・・・ブームあおり止め用バ
ックストップ、１２Ａ・・・内筒、１２Ｂ・・・外筒、
１３・・・ストツノで。Figures 1 and 2 are side views showing the working and non-working positions of a conventional mobile crane, Figure 3 is a sectional view of the backstop for preventing boom tilting, and Figure 4 is the non-working position. Figures 5 and 6 show the mobile crane of the present invention in side view with the A frame changed to the IJ-position (with the A frame in the high gun position), and Figure 5 shows the A frame in the low gantry position.
Figure 6 is a side view of the A-frame when the frame is being changed to the high gantry position (7). Figure 7 is a side view of the A frame being changed to the high gantry position. It is a sectional view of the backstop for stopping. 1... Crane main body, 2... Split type lattice boom,
2A...lower boom, 2B...upper boom, 3...
・A frame, 3A...front leg, 3B...rear leg, 6.
...Boom hoisting device, 12...Backstop for preventing boom tilting, 12A...Inner cylinder, 12B...Outer cylinder,
13...at Stotsuno.

Claims

[Scope of utility model registration request]

A backstop for preventing boom tilting is interposed between the crane body and the lower boom of the split type lattice boom attached to the crane body, and based on the weight of the lattice boom, the hoisting rope of the boom hoisting device is wound up and let out to
In the mobile crane that allows the frame to be changed between a high gantry position and a low gantry position, the lower boom of the lattice boom is tilted down to a transport position between the inner cylinder and the outer cylinder of the backstop. A mobile crane characterized in that a stopper that restricts the contraction movement of the backstop itself is removably attached.