SHAFT INTRUSION DEVICE

PURPOSE:To supply a large number of extension shafts efficiently and simultaneously and extend shafts and intrude them in an attempt to reduce the weight of a device and the size of the device and simplify the structure. CONSTITUTION:A plurality of drilling shafts 16 are laid out in the direction of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TSUJII TAKESHI, NISHIJIMA YOSHIHARU
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:PURPOSE:To supply a large number of extension shafts efficiently and simultaneously and extend shafts and intrude them in an attempt to reduce the weight of a device and the size of the device and simplify the structure. CONSTITUTION:A plurality of drilling shafts 16 are laid out in the direction of intruded pile arrangement and held with a lift housing 32. Each of the drilling shafts 16 is intruded simultaneously by lowering this lift housing 32 along a gentry frame 30 while both posts 50 of the gantry frame 30 are adapted to rise and fall on a rack 12. Furthermore, a bracket 54 and a guide rod 62 are rotated in the upper part of the both posts 50, which makes it possible to carry the drilling shafts 16, holding the shafts 16 on the lift housing 32.