Patent ID: 6293177
Filing Date: 2001-09-25
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 first set of axially aligned spaced-apart apertures 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 diameter and in number to the apertures in the first set of apertures in the locator member,said locator member having a second set of axially aligned spaced-apart apertures therein,a fence having a surface thereon for abutting against a workpiece,said fence being disposed adjacent to the locator member for limited slideable movement right and left thereof,said fence having a set of axially aligned spaced-apart through-apertures therein equal in diameter to the apertures in the second set of apertures in the locator member,said fence being incrementally positionable relative to the locator member by alignment of one of the apertures therein with one of the apertures in said second set of apertures in the locator member,the spacing of the apertures in the fence and the spacing of the second set of apertures 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 fence relative to the locator member,the locator member being incrementally positionable relative to the scale by alignment of one of the apertures in the first set of apertures in the locator member with one of the apertures in said scale,the spacing of the apertures in the scale and the spacing of the apertures in the first set of apertures 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, andwhereby a workpiece abutting the fence will be exactly located in the precise position selected therefor.