JPS587783U - boom for crane - Google Patents

boom for crane

Info

Publication number
JPS587783U
JPS587783U JP9945881U JP9945881U JPS587783U JP S587783 U JPS587783 U JP S587783U JP 9945881 U JP9945881 U JP 9945881U JP 9945881 U JP9945881 U JP 9945881U JP S587783 U JPS587783 U JP S587783U
Authority
JP
Japan
Prior art keywords
boom
crane
stop
tower
view
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
Application number
JP9945881U
Other languages
Japanese (ja)
Other versions
JPH0114632Y2 (en
Inventor
森田　晴幸
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP9945881U priority Critical patent/JPS587783U/en
Publication of JPS587783U publication Critical patent/JPS587783U/en
Application granted granted Critical
Publication of JPH0114632Y2 publication Critical patent/JPH0114632Y2/ja
Granted legal-status Critical Current

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  • Jib Cranes (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一対象物である移動式タワークレーン
の使用状態の側面図、第２図は同移動式タワークレーン
のタワーブームの組立、分解時の状態を示す図、第３図
は第１図のＡ−Ａ線切断拡大断面図であってタワーブー
ムの組立、分解時にハシゴを使用してブーム上面に登る
従来技術の説明図、第４図は本考案の一実施例を、従来
技術を示す第９図に対比させて示した拡大断面図、第５
　　　　′図は第４図のＢ−Ｂ線断面図である。 ２・・・タワーブームまたはクレーンブーム等のブーム
、２ａ・・・ブームの上面、３・・・タワーストップ等
のあおり防止用のストップ、３ａ・・・ストップの先端
部、４・・・ブラケット、５・・・ピン、６・・・補強
プレー、ト、８−・・足掛用ステップ。Fig. 1 is a side view of a mobile tower crane, which is an object of the present invention, in use, Fig. 2 is a diagram showing the tower boom of the mobile tower crane in its assembled and disassembled state, and Fig. 3 is a side view of the mobile tower crane in use. FIG. 1 is an enlarged sectional view taken along the line A-A in FIG. 1, and is an explanatory diagram of a conventional technique for climbing onto the top surface of the boom using a ladder when assembling and disassembling the tower boom. FIG. Enlarged sectional view shown in comparison with FIG. 9 showing the technology, No. 5
Figure ' is a sectional view taken along the line B--B in Figure 4. 2... Boom such as tower boom or crane boom, 2a... Top surface of boom, 3... Stop for preventing tilting such as tower stop, 3a... Tip of stop, 4... Bracket, 5...Pin, 6...Reinforcement plate, 8-...Step for footrest.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ブームに設けられたブラケットとあおり防止用のストッ
プとの結合部近傍の、ブームに取り付けられた補強プレ
ートの外側面に、足掛用ステップを設けたことを特徴と
するクレーン用ブーム。A boom for a crane, characterized in that a foothold step is provided on the outer surface of a reinforcing plate attached to the boom, near the joint between a bracket provided on the boom and a stop for preventing tilting.
JP9945881U 1981-07-06 1981-07-06 boom for crane Granted JPS587783U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9945881U JPS587783U (en) 1981-07-06 1981-07-06 boom for crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9945881U JPS587783U (en) 1981-07-06 1981-07-06 boom for crane

Publications (2)

Publication Number Publication Date
JPS587783U true JPS587783U (en) 1983-01-19
JPH0114632Y2 JPH0114632Y2 (en) 1989-04-28

Family

ID=29894197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9945881U Granted JPS587783U (en) 1981-07-06 1981-07-06 boom for crane

Country Status (1)

Country Link
JP (1) JPS587783U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS437551Y1 (en) * 1964-06-22 1968-04-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS437551Y1 (en) * 1964-06-22 1968-04-04

Also Published As

Publication number Publication date
JPH0114632Y2 (en) 1989-04-28

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