Patent ID: 6958006

Claim:
In a grinding machine having a bed; a workpiece support drive device mounted on a front part of said bed for rotatably supporting a workpiece; a wheel head having a bearing unit rotatably supporting a grinding wheel for grinding said workpiece and guided through a slide mechanism on said bed to be movable relative to said workpiece; a wheel head feed device for moving said wheel head toward and away from said workpiece support drive device; and a coolant supply device for supplying coolant toward a machining area where said grinding wheel grinds said workpiece; the improvement comprising: a lateral surrounding cover provided on said bed and surrounding and covering lateral surfaces of said machining area in which said work support drive device, said grinding wheel and said bearing unit are arranged and a slide area in which said slide mechanism is arranged, and wherein said lateral surrounding cover does not cover the top of said machining area and said slide area; and a top open/close cover provided on the top part of said lateral surrounding cover and movable between a first position which leaves open the top of said machining area and said slide area and a second position to cover the top of said machining area and said slide area.