Abstract: A non-step speed changer for a plane shaft of a manual planer includes an adjust base and a speed-changing cam unit. A motor is fixed on the adjusting base, which can adjust the level of the spindle of the motor. The speed changing cam unit is pivotally connected on the spindle, and a transmitting belt is mounted around the speed changing cam unit and also around the plane shaft of a manual planer. The rotating radius of the transmitting belt around the speed changing cam unit is altered in accordance to lifting up and lowering down of the spindle, so the level of the spindle of the motor is altered, and the planing speed of the plane shaft is altered in the same way, able to enhance the quality of a work finished.

Abstract: An indicating device with large graduations for a plane is installed at a combining section of a main base and a worktable of the plane, including a graduation ruler, a pointer and a rack. The graduation ruler formed as an arc is provided with graduations with number figures for readings. The upper end portion of the pointer faces exactly to the graduation ruler for pointing to one of the graduations. The pointer has gear teeth in its lower round edge for engaging with gear teeth located on one side of the rack. Therefore, a displacement the worktable moves relative to the main base can be clearly and easily read from the graduations of the graduation ruler.

Abstract: A dedicated V-shaped groove forming machine comprises an X-axis slider disposed over a plate material so as be movable in an X-axis (groove forming direction); a Z-axis slider supported by the X-axis slider so as to be movable in a Z-axis direction (vertical direction); and plural cutting tools mounted on the Z-axis slider; and a Y-axis carriage for moving a plate material (workpiece) in a Y-axis direction (perpendicular to the X-axis direction). Further, there are provided work table adjusting device for adjusting the cutting tool movement locus in parallel to the work table and tool height detecting device for determining an origin in the Z-axis direction, etc.

Abstract: A dedicated V-shaped groove forming machine comprises an X-axis slider disposed over a plate material so as be movable in an x-axis (groove forming direction); a Z-axis slider supported by the x-axis slider so as to be movable in a Z-axis direction (vertical direction); and plural cutting tools mounted on the Z-axis slider; and a Y-axis carriage for moving a plate material (workpiece) in a Y-axis direction (perpendicular to the X-axis direction). Further, there are provided work table adjusting device for adjusting the cutting tool movement locus in parallel to the work table and tool height detecting device for determining an origin in the Z-axis direction, etc.