A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONSTRUCTION MACHINE BOOM
PROBLEM TO BE SOLVED: To provide a construction machine boom capable of decreasing weight and ensuring sufficient strength.SOLUTION: A long boom 11 that is longer than a standard one comprises: a box structure 12 consisting of right and left side plates 13, 13', an upper plate 15, and a lower plate 17; a foot part fitting member 19; an arm fitting member 20; and a boom cylinder fitting member 21. The side plates 13, 13'of the box structure 12 comprise three members including rear plates 13A, 13A', intermediate side plates 13B, 13B', and front plates 13C, 13C', respectively. Each plate thickness of the front plates 13C, 13C' are thinner than that of the rear plates 13A, 13A'. The upper plate 15 comprises two members including a rear upper plate 15A and a front upper plate 15B. A plate thickness of the front upper plate 15B is thinner than that of the rear upper plate 15A. The lower plate 17 comprises three members including a rear lower plate 17A, rear-side intermediate lower plate 17B, front-side intermediate lower plate 17C, and front lower plate 17D. A plate thickness of the front lower plate 17D is thinner than that of the rear lower plate 17A.SELECTED DRAWING: Figure 5
【課題】 軽量化を図りつつ十分な強度を確保することができる建設機械用ブームを提供する。【解決手段】 標準よりも長尺なロングブーム１１を、左，右の側板１３，１３′、上板１５および下板１７からなる箱型構造体１２、フート部取付部材１９、アーム取付部材２０、ブームシリンダ取付部材２１により構成する。箱型構造体１２の各側板１３，１３′は、後側板１３Ａ，１３Ａ′、中間側板１３Ｂ，１３Ｂ′、前側板１３Ｃ，１３Ｃ′の３部材により構成し、後側板１３Ａ，１３Ａ′よりも前側板１３Ｃ，１３Ｃ′の板厚を薄く設定する。上板１５は、後上板１５Ａ、前上板１５Ｂの２部材により構成し、後上板１５Ａよりも前上板１５Ｂの板厚を薄く設定する。下板１７は、後下板１７Ａ、後寄り中間下板１７Ｂ、前寄り中間下板１７Ｃ、前下板１７Ｄの３部材により構成し、後下板１７Ａよりも前下板１７Ｄの板厚を薄く設定する。【選択図】 図５
CONSTRUCTION MACHINE BOOM
PROBLEM TO BE SOLVED: To provide a construction machine boom capable of decreasing weight and ensuring sufficient strength.SOLUTION: A long boom 11 that is longer than a standard one comprises: a box structure 12 consisting of right and left side plates 13, 13', an upper plate 15, and a lower plate 17; a foot part fitting member 19; an arm fitting member 20; and a boom cylinder fitting member 21. The side plates 13, 13'of the box structure 12 comprise three members including rear plates 13A, 13A', intermediate side plates 13B, 13B', and front plates 13C, 13C', respectively. Each plate thickness of the front plates 13C, 13C' are thinner than that of the rear plates 13A, 13A'. The upper plate 15 comprises two members including a rear upper plate 15A and a front upper plate 15B. A plate thickness of the front upper plate 15B is thinner than that of the rear upper plate 15A. The lower plate 17 comprises three members including a rear lower plate 17A, rear-side intermediate lower plate 17B, front-side intermediate lower plate 17C, and front lower plate 17D. A plate thickness of the front lower plate 17D is thinner than that of the rear lower plate 17A.SELECTED DRAWING: Figure 5
【課題】 軽量化を図りつつ十分な強度を確保することができる建設機械用ブームを提供する。【解決手段】 標準よりも長尺なロングブーム１１を、左，右の側板１３，１３′、上板１５および下板１７からなる箱型構造体１２、フート部取付部材１９、アーム取付部材２０、ブームシリンダ取付部材２１により構成する。箱型構造体１２の各側板１３，１３′は、後側板１３Ａ，１３Ａ′、中間側板１３Ｂ，１３Ｂ′、前側板１３Ｃ，１３Ｃ′の３部材により構成し、後側板１３Ａ，１３Ａ′よりも前側板１３Ｃ，１３Ｃ′の板厚を薄く設定する。上板１５は、後上板１５Ａ、前上板１５Ｂの２部材により構成し、後上板１５Ａよりも前上板１５Ｂの板厚を薄く設定する。下板１７は、後下板１７Ａ、後寄り中間下板１７Ｂ、前寄り中間下板１７Ｃ、前下板１７Ｄの３部材により構成し、後下板１７Ａよりも前下板１７Ｄの板厚を薄く設定する。【選択図】 図５
CONSTRUCTION MACHINE BOOM
建設機械用ブーム
ASAHI SHUNSUKE (author) / INAMOTO AKIRA (author) / TADA SHIGEYA (author) / MAEHARA YUJI (author) / ASANO HIROYUKI (author)
2016-05-23
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING