| 摘要 |
PROBLEM TO BE SOLVED: To provide a nail hammer possible to reduce the labor to be required to drive a split nail and to improve the working efficiency by using a function for giving an impact of a hammer drill for boring a preparation hole in a concrete wall with a drill for driving of the split nail. SOLUTION: In this hammer 21 formed of combination of two leg bodies 2 and 3 having a tip in one end and a head part in the other end, the two legs 2 and 3 are connected to each other by a washer 9, the one leg body 2 is provided with a splitting projection 8, and when the other leg body 3 is driven, the leg body 3 hits the split nail 1 split by the splitting projection 8 with a hammer drill. A head part 23 is provided at a tip of a shank 22 to be fitted to a chuck part 11 of the hammer drill 10 freely to be removed, and a tip surface of the head part 23 is provided with a recessed part 24 in a size possible to be fitted on the head parts 6 and 7 of the two leg bodies 2 and 3 freely to be rotated. COPYRIGHT: (C)2003,JPO
|
