Adjustment device for a front guard of a grind wheel

Abstract

An adjustment device for the front guard of a grinding wheel machine includes a grip and round rod. The round rod is mounted with a fastening base and one side of the fastening base is furnished with a flat surface to be attached to an inner surface of a guard plate on the front end of a transmission shaft. The flat surface of the fastening base is furnished with symmetrical position beads and screw holes so as to have the guard plate positioned and screwed in place. After the guard plate is adjusted, the grinding wheel on the transmission shaft will simultaneously change direction by changing the direction switch so that the grinding wheel is turned in a different direction.

1 - 2 . (canceled) 
   
   
       3 . A grind wheel machine having an adjustment device for a guard plate, a round rod and a direction-changing base, said direction-changing base furnished with a transmission shaft therein, a ring base on said transmission shaft mounted with a guard plate to form into a direction-changing device, the grind wheel machine comprising:
 the guard plate, the center of the guard plate having a through round hole configured to be mounted on the ring base positioned on said direction-changing base, an outer surface of the guard plate being attached to a flat surface of a fastening base, an outer edge of a guard body having a vertical round plate and an opening having a suitable width, said vertical round plate having a through arch-shaped slot;   the fastening base having a guard body furnished with a round hole configured to be connected with a front end of a round rod, one side of said round hole having two symmetrical clamp plates and a gap being left between said two clamp plates, a screw bolt being mounted in said gap, one side of said round hole being furnished with a flat surface to attach closely with a flat surface of said guard plate, said flat surface of said fastening base furnished with two symmetrical screw holes opposite to said arch-shaped slot of said guard plate; and   two screws, which are mounted through said arch-shaped slot, and each screw of the two screws being respectively fastened in one of two screw-holes on a flat surface of said fastening base.   
   
   
       4 . A grind wheel machine as claimed in  claim 3 , wherein the front guard plate has a direction-changing device including the fastening base with two symmetrical screw holes on a flat surface of the fastening base, and with two cylindrical holes beside said two screw holes, each of said two cylindrical holes loaded with a spring and a positioning bead, said flat surface of said guard plate being attached closed to said flat surface of said fastening base, said arch-shaped slot being furnished with two positioning holes each respectively configured for holding one of said positioning beads.