Patent ID: 6725754
Filing Date: 2004-04-27
Classification: B23Q,Y10T

Abstract:
A workpiece positioning device for precisely positioning a workpiece to be worked upon by a power tool comprising:a stationary base, an elongated locator member carried by the base for limited slideable movement right and left thereof, said locator member having a set of spaced-apart circumferential slots therein, an elongated scale made fast to the base and disposed adjacent to said locator member, a set of axially aligned spaced-apart through-apertures in said scale equal in number to the number of said circumferential slots in said locator member and equal in diameter to the width of said circumferential slots in the locator member, a movable stop having a surface thereon for abutting against a workpiece, said movable stop being disposed adjacent to the locator member for limited slideable movement right and left thereof, said movable stop having a set of axially aligned spaced-apart through-apertures therein, said movable stop being incrementally positionable relative to the locator member by alignment of one of the apertures therein with one of the slots in said locator member, the spacing of the apertures in the movable stop and the spacing of the circumferential slots in the locator member being different from each other by an amount equal to a first precise predetermined distance to facilitate fine positioning of the movable stop relative to the locator member, the locator member being incrementally positionable relative to the scale by alignment of one of the apertures in the scale with one of the circumferential slots in the locator member, the spacing of the apertures in the scale and the spacing of the slots in the locator member being different from each other by an amount equal to a second precise predetermined distance to facilitate precision positioning of the locator member relative to the scale, the second precise predetermined distance being more precise than the first precise predetermined distance, and whereby a workpiece abutting the movable stop will be exactly located in the precise position selected therefor.