Patent ID: 6138546
Filing Date: 2000-10-31
Classification: B26D,B26F,C03B,Y10S,Y10T

Abstract:
In a hand-operated apparatus for cutting a mat board workpiece, comprising a base board for supporting the workpiece, a clamping bar assembly extending across and pivotally mounted to said base board for clamping the workpiece to said base board, and a cutting head assembly mounted on said clamping bar assembly for lengthwise slidable movement thereon, the improvement wherein said cutting head assembly comprises:a body section engaging said clamping bar assembly and having a pair of spaced-apart, outwardly extending arms; anda plurality of interchangeable blade holding units each carrying at least one blade, each of said blade holding units being capable of being removably mounted, one at a time, to and between said arms in a manner which permits ready adjustment of a depth of the cut of the blade relative to the workpiece;each of said plurality of interchangeable blade holding units including a tension bar which is removably securable to said arms and which, when secured to said arms, remains stationary thereto; andsaid plurality of interchangeable blade holding units including a first blade holding unit which when mounted to said arms has at least one blade extending at an angle relative to the base board for use in making bevel cuts in the workpiece and a second blade being unit which when mounted to said arms has at least one blade mounted vertically relative to the base board for use in making straight edge cuts in the workpiece.