| 摘要 |
PROBLEM TO BE SOLVED: To provide a drilling device to which a wire for increasing a load of a tip bit can be assembled easily and in which construction efficiency can be improved.SOLUTION: A drilling device 1 comprises a base machine 10, a leader 20, a driver 30, a drilling shaft 40, and a throttling mechanism 50 which increases a load to a tip end bit 41. In a main body unit 12 of the base machine 10, a support member 16 is erected and the throttling mechanism 50 includes a first guide member 51 provided in the support member 16 at a position lower than the top of the leader 20 and a second guide member 52 provided in the main body unit 12. A wire 14a extending from a winch 14 of the main body unit 12 is guided by the first guide member 51, the wire 14a extending from the first guide member 51 is guided by the second guide member 52, and the wire 14a extending from the second guide member 52 is assembled to the driver 30. |
