| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an anti-vibration mechanism that effectively controls the vibration caused by the rotation of a drill bit mounted to an electric drill. <P>SOLUTION: The anti-vibration mechanism controls the vibration caused by the rotation of the drill bit 2 comprising a cutting blade 11 and a shank 12 mounted to the electric drill 3 for boring by handheld operation. The anti-vibration mechanism includes: a nose block 41 mounted to the electric drill 3, fixed to the tip end of a guide attachment 5 for guiding the boring operation of the drill bit 2, and brought into contact with an object C to be bored; and a bearing member 42 provided in the nose block 41 and supporting the shank 12 rotatably and slidably in an axial direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
