JPS60122791U

JPS60122791U - Mobile crane with split crane boom

Info

Publication number: JPS60122791U
Application number: JP915784U
Authority: JP
Inventors: 勝早川
Original assignee: 日立建機株式会社
Priority date: 1984-01-27
Filing date: 1984-01-27
Publication date: 1985-08-19

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図ないし第７図は従来技術を示すもので、第１図は
トラッククレーンの使用状態の側面図、第２図は各ブー
ムの継手の分解拡大斜視図、第３図はブームの組立状態
の拡大側面図、第４図ぼ第３図中ＩＶ−ＩＶ線断面図、
第５図および第６図は分割式クレーンブームの組立、分
解説明図、第７図９は分割式クレーンブームを中間支持
したクローラクレーンの使用状態の側面図、第８図は第
６図および第７図における■部拡大図であって、ブライ
ドルまたはペンダントロープ結合用のブラケットとその
取り付は位置を補強するための補強板との取り付は状態
を示す拡大側面図である。第９図乃至第１２図は本考案
に係る移動式クレーンの一実施例を示し、第９図はアイ
エンドとホークエンドの連結状態を示した一部側面図、
第１０図は第９図におけるＸ−Ｘ線断面図、第１１図は
分割式クレーンブームと連結具との連結状態を示した一
部側面図、第１２図は第１１図におけるｘｎ−ｘｎ線断
面図である。１・・・走行体、２・・・クレーン本体、３・・・下ブ
ーム、４・・・継ぎブーム、５・・・上ブーム、６・・
・継手、７・・・ホークエンド、８・・・アイエンド、
１５・・・起伏ロープ、１６・・・プライドル、１７・
・・ペンダントロープ、１９・・・中間支持ロープ、２
０・・・リンク（連結具）、２４．７０．８０・・・ピ
ン孔、２５・・・抜止ピン用孔、２６・・・連結ピン、
２９・・・第１抜止ピン用孔、３０・・・第２抜止ピン
用孔、３１・・・抜止ピン。第９図第１０図Figures 1 to 7 show the prior art. Figure 1 is a side view of a truck crane in use, Figure 2 is an exploded enlarged perspective view of the joints of each boom, and Figure 3 is an assembled state of the boom. An enlarged side view of FIG. 4 and a sectional view taken along the line IV-IV in FIG.
Figures 5 and 6 are assembled and exploded explanatory views of the split crane boom, Figure 7 and 9 are side views of the crawler crane in use with the split crane boom supported in the middle, and Figure 8 is the same as Figures 6 and 9. 7 is an enlarged side view showing the bracket for connecting a bridle or pendant rope and its attachment with a reinforcing plate for reinforcing its position. FIG. 9 to 12 show an embodiment of the mobile crane according to the present invention, and FIG. 9 is a partial side view showing the connected state of the eye end and the hawk end;
Figure 10 is a cross-sectional view taken along the line X-X in Figure 9, Figure 11 is a partial side view showing the state of connection between the split crane boom and the coupling, and Figure 12 is the xn-xn line in Figure 11. FIG. 1... Traveling body, 2... Crane main body, 3... Lower boom, 4... Joint boom, 5... Upper boom, 6...
・Joint, 7... Hawk end, 8... Eye end,
15... undulating rope, 16... priddle, 17.
... Pendant rope, 19 ... Intermediate support rope, 2
0... Link (connecting tool), 24.70.80... Pin hole, 25... Hole for retaining pin, 26... Connecting pin,
29... Hole for first retaining pin, 30... Hole for second retaining pin, 31... Retaining pin. Figure 9 Figure 10

Claims

[Scope of claim for utility model registration] 1. The crane boom provided on the crane body is
It consists of a split crane boom consisting of a boom i, an upper boom, a plurality of joint booms inserted between both booms, and a joint that connects each boom.The joints connect the eye end and the eye end. It consists of a hawk end that fits together, and a connecting pin that is inserted into a pin hole drilled in both. When disassembling and assembling the split crane boom,
The boom hoisting device pendant rope connector is connected to the lower boom or the joint boom to hold the lower boom or the lower boom and the joint boom horizontally, and the intermediate support rope connector is connected to the boom hoisting device during hoisting work of the split crane boom. In a mobile crane that is connected to the middle of a split crane boom to support the split crane boom, a pin hole into which the connecting pin can be inserted is provided in the connector of the pendant rope or the connector of the intermediate support rope; The pin has a length that can be inserted into the pin holes of the eye end, the hawk end, and the connector, and the connecting pin has a first retaining pin hole and a second retaining pin hole, and the first retaining pin hole By inserting a retaining pin into the second retaining pin hole, the eye end and fork end are prevented from coming off from the connecting pin, and by inserting the retaining pin into the second retaining pin hole, the eye end, fork end, and d connector are connected. A mobile crane equipped with a split crane boom, characterized in that the crane boom is configured to prevent the boom from coming off the pin. 2. The length of the connecting pin is such that when the connecting pin is inserted into the eye end, the hawk end, and the pin hole of the connecting tool, it can protrude from both sides of the connecting tool, and the first retaining pin hole is:
Two holes are provided at a distance slightly larger than the width of the eye end and hawk end, and the second retaining pin hole is
The width of the eye end, the hawk end, and the connector are two at a distance from each other, and the connector is the second one.
The split type according to claim 1 of the utility model registration claim, characterized in that a hole for a locking pin and a hole for a locking pin corresponding to the locking pin hole are provided, and the connecting pin and the connecting tool □ are aligned with each other by the locking pin. Mobile crane with crane boom. .