Patent ID: 6694854
Filing Date: 2004-02-24
Classification: B26D,B41J,Y10T

Abstract:
A half-cutting device comprising:a half cutter that has a cutter blade formed by an angular blade and moves in a direction of a width of a tape material to perform cutting operation on the tape material; a tape reception plate opposed to said half cutter, with the tape material interposed therebetween, for receiving the tape material being cut; and a cutter actuating mechanism that causes said half cutter to perform a cyclic operation including a cutting preparation operation in which said half cutter is advanced toward said tape reception plate from a cutting wait position to a cutting start position, the cutting operation in which said half cutter is moved from the cutting start position to a position in which the cutting operation is completed, a withdrawing operation in which said half cutter is withdrawn from the position in which the cutting operation is completed to a withdrawn position, and a returning operation in which said half cutter is returned from the withdrawn position to the cutting wait position; wherein said cutter actuating mechanism includes: a first mechanism for causing said half cutter to carry out the cutting operation and the returning operation in a slidable manner; a second mechanism for moving said half cutter to move toward and away from said tape reception plate to cause said half cutter to carry out the cutting preparation operation and the withdrawing operation; and a third mechanism for transmitting a driving force in a bifurcating manner to said first mechanism and said second mechanism to thereby cause said first mechanism and said second mechanism to operate in an interlocked manner; wherein said first mechanism includes: a guide shaft arranged in parallel with a tape-receiving surface of said tape reception plate for slidably holding said half cutter; and an input arm having an end portion thereof connected to said half cutter and at the same time capable of performing swinging motion about a root portion thereof, said input arm being supplied with a portion of the driving force from said third mechanism, for performing the swinging motions, and causing said half cutter to slide such that said half cutter is guided by said guide shaft; and a frame member; and wherein said second mechanism includes: a support block supporting said guide shaft and at the same time mounted on said frame member such that said support block is capable of advancing and withdrawing, and an input plate having one end thereof connected to said support block and another end rotatably connected to said frame member, said input plate being supplied with a portion of the driving force from said third mechanism, thereby causing said guide shaft to approach and withdraw, via said support block.