Patent ID: 7278345

Claim:
A blind trimming apparatus comprising: a frame supporting a cutting tool, the cutting tool including a cutting edge; a blade holder guided on the frame for movement with respect to the cutting tool along a cutting path; a blade insert including a cutting edge and being connectable to the blade holder for movement with the blade holder with respect to the cutting tool to trim blinds between the cutting edge of the cutting tool and the cutting edge of the blade insert; one of the blade holder and the blade insert including a ramp at least partially defining a locating recess; an other of the blade holder and the blade insert having a locating protrusion, the locating protrusion being engageable in the locating recess to align the blade insert with respect to the blade holder so that, during cutting, the cutting edge of the blade insert is spaced a predetermined distance from the cutting edge of the cutting tool measured along a plane, the plane being substantially perpendicular to the cutting path and extending through the cutting tool; and at least a portion of at least one of the ramp and the locating protrusion being angled with respect to the cutting path between about 5 degrees and about 25 degrees with respect to the cutting path.