Patent ID: 7231860

Claim:
A blade material cutting device which is employed for cutting a strip blade material, said device having: a stationary blade part having a front member and a rear member together defining support faces on which a strip plate part and a blade edge part of the blade material, where the blade edge part is formed in an edge of the strip plate part, are to be overlaid; a pair of front and rear stationary edges which are disposed in respective ones of said support faces, and formed in said front member and said rear member, respectively, and which are positioned to be separated from each other by a gap in a direction of feeding of the blade material; a right movable blade part situated adjacent to and to the right of said support faces and movable in lateral directions of said support faces, and a left movable blade part situated adjacent to and to the left of said support faces and movable in the lateral directions of said support faces; wherein: said support faces are formed in each of the right and left side faces of said front member and said rear member, said pair of front and rear stationary edges which are disposed in said support face on one side are straight—cutting edges for linearly forming a cut line which extends over the blade edge part and the strip plate part of the blade material after the cutting, said pair of front and rear stationary edges which are disposed in said support face on another side are miter-cutting edges for conducting a cutting operation so that the blade edge part of the blade material after the cutting has a miter shape; a pair of front and rear movable edges are disposed in said right movable blade part, with said front and rear movable edges cooperating with said straight—cutting stationary edges to cut the blade material; and a pair of front and rear movable edges are disposed in said left movable blade part, with said front and rear movable edges cooperating with said miter—cutting stationary edge to cut the blade material.