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PROBLEM TO BE SOLVED: To suppress the height of a support column, and largely secure the elevation quantity of a cab.SOLUTION: A left rear support column 8 and a right rear support column 9 are positioned on the rear side of a cab 29, and erected on a revolving frame 5, and a rear guide cylinder 13...

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1. Verfasser: SUGAWARA KOTA
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To suppress the height of a support column, and largely secure the elevation quantity of a cab.SOLUTION: A left rear support column 8 and a right rear support column 9 are positioned on the rear side of a cab 29, and erected on a revolving frame 5, and a rear guide cylinder 13 is provided to surround the left rear support column 8 and the right rear support column 9 from the outside. Four upper slide members 16 surrounding the left rear support column 8 and four upper slide members 16 surrounding the right rear support column 9 are respectively mounted on the upper position of the rear guide cylinder 13, and a guide cylinder side bracket 21 is provided on a lower side than the mounting position of the upper slide member 16 on a front plate 13A of the rear guide cylinder 13. One end of a cable/hose guide member 30 is mounted on the guide cylinder side bracket 21. Thus, it is possible to dispose the upper slide member 16 in the vicinity of an upper end of the rear guide cylinder 13, and to cause the rear guide cylinder 13 to the upper ends of the left and right rear support columns 8 and 9 in a stable state, and to largely secure the elevation quantity of the cab 29.SELECTED DRAWING: Figure 5 【課題】 支柱の高さを抑え、キャブの昇降量を大きく確保する。【解決手段】 キャブ29の後側に位置して旋回フレーム5上に左後支柱8と右後支柱9を立設し、これら左後支柱8と右後支柱9を外側から取囲む後ガイド筒13を設ける。後ガイド筒13の上部位置には、左後支柱8を取囲む4個の上側摺動部材16と、右後支柱9を取囲む4個の上側摺動部材16をそれぞれ取付け、後ガイド筒13の前面板13Aのうち上側摺動部材16の取付け位置よりも下側には、ガイド筒側ブラケット21を設ける。ガイド筒側ブラケット21には、ケーブル・ホース案内部材30の一端を取付ける。これにより、後ガイド筒13の上端近傍に上側摺動部材16を配置することができ、後ガイド筒13を左,右の後支柱8,9の上端まで安定した状態で移動させることができ、キャブ29の昇降量を大きく確保することができる。【選択図】 図5