JPH03100280U - - Google Patents

Info

Publication number
JPH03100280U
JPH03100280U JP617390U JP617390U JPH03100280U JP H03100280 U JPH03100280 U JP H03100280U JP 617390 U JP617390 U JP 617390U JP 617390 U JP617390 U JP 617390U JP H03100280 U JPH03100280 U JP H03100280U
Authority
JP
Japan
Prior art keywords
boom
cross
bottom plate
sides
crane
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
JP617390U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP617390U priority Critical patent/JPH03100280U/ja
Publication of JPH03100280U publication Critical patent/JPH03100280U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)

Description

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

第１図ａはこの考案による６段ブームのブーム
断面、第１図ｂは第１図ａに示した７角形断面に
作用する力の関係を説明するための図、第２図は
ブーム長手方向におけるパツドの配置説明図、第
３図は吊荷作業時状態の移動式クレーン車の側面
図、第４図ａ，ｂ、第５図ａ，ｂ、第６図ａ，ｂ
はブーム団数がそれぞれ４段、５段、６段のブー
ムの伸縮機構説明図、第７図ａ，ｂ，ｃは従来の
ブーム壁面座屈強度向上対策例を示す。 １０〜１６……上面板、２０〜２６……上側面
板、３０〜３６……下側面板、４０〜４６……下
面板、８１〜８４……パツド。 Figure 1a is a boom cross section of a six-stage boom according to this invention, Figure 1b is a diagram for explaining the relationship of forces acting on the heptagonal cross section shown in Figure 1a, and Figure 2 is a boom longitudinal direction. Fig. 3 is a side view of the mobile crane vehicle during lifting work, Fig. 4 a, b, Fig. 5 a, b, Fig. 6 a, b
7A, 7B, and 7C are explanatory diagrams of the extension and retraction mechanism of booms with boom numbers of 4, 5, and 6, respectively, and FIGS. 7a, b, and c show examples of conventional boom wall buckling strength improvement measures. 10-16...Top plate, 20-26...Top side plate, 30-36...Bottom side plate, 40-46...Bottom plate, 81-84...Padded.

Claims (1)

【実用新案登録請求の範囲】 (1) クレーンブーム断面形状が凸７角形であつ
て、その両側面及び下面板が外側へ折り曲げられ
、該両側面の折曲げ位置は下面板端部より、ブー
ム断面箱高さの1/2〜1/5であることを特徴とする
クレーンのブーム断面形状。 (2) 上記請求項第１項記載のクレーンのブーム
断面の両側面の折曲げ位置及び下面板の間に、ブ
ーム断面の変形を拘束するようにパツドを配設し
たことを特徴とするクレーンブームの形状。[Scope of Claim for Utility Model Registration] (1) The crane boom has a convex heptagonal cross-sectional shape, both sides and the bottom plate are bent outward, and the bending position of both sides is from the end of the bottom plate to the boom. A crane boom cross-sectional shape that is 1/2 to 1/5 of the cross-sectional box height. (2) A shape of a crane boom characterized in that a pad is arranged between the bending position of both sides of the boom cross section and the bottom plate so as to restrain deformation of the boom cross section of the crane according to claim 1 above. .
JP617390U 1990-01-29 1990-01-29 Pending JPH03100280U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP617390U JPH03100280U (en) 1990-01-29 1990-01-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP617390U JPH03100280U (en) 1990-01-29 1990-01-29

Publications (1)

Publication Number Publication Date
JPH03100280U true JPH03100280U (en) 1991-10-21

Family

ID=31509851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP617390U Pending JPH03100280U (en) 1990-01-29 1990-01-29

Country Status (1)

Country Link
JP (1) JPH03100280U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009029968A1 (en) * 2007-09-05 2009-03-12 Palfinger Ag Profile shape for a crane jib
WO2009029966A1 (en) * 2007-09-05 2009-03-12 Palfinger Ag Profile shape for a crane jib
WO2009029965A1 (en) * 2007-09-05 2009-03-12 Palfinger Ag Profile shape for a crane jib
JP2010089919A (en) * 2008-01-09 2010-04-22 Kobelco Cranes Co Ltd Telescopic boom
JP2010537920A (en) * 2007-09-05 2010-12-09 パルフィンガー アーゲー Contour shape of crane boom
JP2011042430A (en) * 2009-08-19 2011-03-03 Kobelco Cranes Co Ltd Boom of crane and method of manufacturing boom of crane
JP2011084350A (en) * 2009-10-13 2011-04-28 Kobelco Cranes Co Ltd Boom
JP2011157210A (en) * 2010-02-04 2011-08-18 Tadano Ltd Boom and crane

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009029968A1 (en) * 2007-09-05 2009-03-12 Palfinger Ag Profile shape for a crane jib
WO2009029966A1 (en) * 2007-09-05 2009-03-12 Palfinger Ag Profile shape for a crane jib
WO2009029965A1 (en) * 2007-09-05 2009-03-12 Palfinger Ag Profile shape for a crane jib
JP2010537920A (en) * 2007-09-05 2010-12-09 パルフィンガー アーゲー Contour shape of crane boom
JP2010089919A (en) * 2008-01-09 2010-04-22 Kobelco Cranes Co Ltd Telescopic boom
JP2011042430A (en) * 2009-08-19 2011-03-03 Kobelco Cranes Co Ltd Boom of crane and method of manufacturing boom of crane
JP2011084350A (en) * 2009-10-13 2011-04-28 Kobelco Cranes Co Ltd Boom
JP2011157210A (en) * 2010-02-04 2011-08-18 Tadano Ltd Boom and crane

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