| 摘要 |
<p>The present invention relates to a device for mounting and detaching a polishing tool for a grinder which conveniently mounts/detaches a polishing tool on/from a coupler which is mounted on a main body of a hand grinder and rotates at a high speed, and firmly presses the coupler and the polishing tool against each other to prevent shaking during grinding, secure safety and continuity of work, and effectively transfer power. The device for mounting and detaching a polishing tool for a grinder comprises a polishing tool, a coupler, a sleeve, rocking balls, a spring, and a cap nut. The polishing tool comprises a cylindrical shaft, a concave recess, and a rectangular shaft sequentially formed on a front end of one side of a body thereof. The coupler comprises a mounting hole and a rectangular hole into which the polishing tool is inserted to fix the polishing tool, a screw hole bound on a main body of a grinder, two rows of penetration holes formed on a circumferential surface thereof, and a flange unit. The sleeve comprises a stepped lower vibroisolating recess and a mounting recess formed on one side of an inner circumferential surface thereof, and an upper vibroisolating recess formed on the other side of the inner circumferential surface thereof. The rocking balls are disposed in the penetration holes formed on the coupler to move to the cylindrical shaft and the concave recess when the sleeve moves to fix or release the polishing tool. The spring gives an elastic force when the sleeve slides. The cap nut restricts an assembling position of the sleeve.</p> |
