Patent ID: 8307746

Claim:
A machine tool comprising a bed, a headstock fixed on said bed, a spindle rotatably supported on said headstock, a movable unit mounted on said bed to be movable in a direction parallel to a rotation axis of said spindle, and a feed mechanism mounted on said bed for moving said movable unit in the parallel direction, wherein a cover member is provided to cover the feed mechanism, the cover member being fixed to the movable unit to move in the parallel direction together with the movable unit, a side hem portion parallel to the moving direction of the cover member is arranged close to a bed side member, and a first seal portion provided between the side hem portion and the bed side member, the first seal portion having a groove portion and having a first slide contact member which is provided on any one of the cover member side and the bed side member to extend in the moving direction, the first slide contact member comprising a wall of the groove portion and a second slide contact member which is provided on another of the cover member side and the bed side member, to extend in the moving direction and having a longitudinal edge inserted into the groove portion and a lateral edge whose lower surface is in slide contact with an upper slide contact surface of the first slide contact member and the first slide contact member and lateral edge of the second slide contact member relatively sliding while being in contact with each other.