| 摘要 |
PROBLEM TO BE SOLVED: To provide an auger screw holder device capable of firmly holding an auger and drilling a hole at an accurate angle. SOLUTION: The auger 1 supports a work platform 5 via a turntable 4 on a truck 2. A bracket 8 is projected from the front end of the work platform 5, and a guide leader 9 is erected on the front end of the bracket 8. An auger screw 12 and a rotary drive unit 13 of the auger screw 12 are supported on the guide leader 9 vertically movably. The bottom end of the auger screw 12 is secured to the auger screw holder 20 attached to a chassis 2a of the truck 2. The auger screw holder 20 is supported by a horizontal articulated arm 30 and an inclination variable supporting unit 50 attached to the tip of the arm 30. The articulated arm 30 and the inclination variable supporting unit 50 are actuated by a hydraulic cylinder. COPYRIGHT: (C)2008,JPO&INPIT
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