To form a drilling hole in parallel with press-fitting a casing in a location with an overhead clearance limitation.
When joining a reverse rod 103' and supplying a casing 10' to a casing press-fitting device 9, first of all, a rotary drilling device 7 is separated by a swivel head 6 and a base machine body 22 is turned left at 90°. Next, an upper end portion of the new reverse rod 103' is connected to the swivel head 6. A frame 4 is then brought into a tilted state and the casing 10' is disposed under the frame 4. Thereafter, the casing 10' is moved horizontally while returning the tilted frame 4 to an upright state, thereby proceeding with insertion of the frame 4 into the casing 10'. Next, the casing 10' is hoisted by an auxiliary crane 8. The base machine body 22 is then turned right at 90°. Thereafter, an upper end portion of the rotary drilling device 7 is connected to a lower end portion of the reverse rod 103'. Afterwards, the casing 10' is moved down and set to the casing press-fitting device 9.
TSUNAKAWA HIROFUMI
IGARASHI HIROMASA
NAGAO KAZUNORI
NISHITANI HITOSHI
TOKUNAGA SUSUMU
KOSUMI YOSHINORI
TOA TONE BORING KK
| JP2005139632A | 2005-06-02 | |||
| JP2009275395A | 2009-11-26 |
Moriaki Ogawa
Kunio Araki
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