JP2009262309A5

JP2009262309A5 -

Info

Publication number: JP2009262309A5
Application number: JP2008117673A
Authority: JP
Filing date: 2008-04-28
Publication date: 2012-05-31

Description

突出刃先６ｃの場合、突出する先端側の刃先の中央部に設けた窪みの両側のさらに鋭利な刃先６ｅによって、シート材に突き刺さる際の負荷が低減されるので好ましい。また、この後は鋭利な刃先６ｅ間に設けた窪みによってシート材を切断幅方向中央に向かって切断することができる。そして、上述した突出刃先６ｂと同様に、可動刃２ｃのＶ字状の窪みの基部に形成した略平行部６ｆによって突き刺しによるシート材の切断幅を略平行部６ｆの幅と実質的に同幅に設定することができる。
上述した可動刃２ａ〜２ｃの場合、可動刃２ａ〜２ｃを突出刃先６ａ〜６ｃに形成することが好ましい傾斜面との境界線を超えない位置で停止させている。なお、前記傾斜面との境界線を越える位置で可動刃２ａ〜２ｃを停止させても良い。 In the case of the protruding blade edge 6c, the sharper cutting edge 6e on both sides of the recess provided in the central portion of the protruding cutting edge side is preferable because the load when piercing the sheet material is reduced. Thereafter, the sheet material can be cut toward the center in the cutting width direction by a recess provided between the sharp blade edges 6e. Similarly to the protruding blade edge 6b described above, the cutting width of the sheet material by piercing by the substantially parallel portion 6f formed at the base of the V-shaped recess of the movable blade 2c is substantially the same as the width of the substantially parallel portion 6f. Can be set to
In the case of the movable blades 2a to 2c described above, the movable blades 2a to 2c are stopped at positions that do not exceed the boundary line with the inclined surface that is preferably formed on the protruding blade edges 6a to 6c . In addition, you may stop the movable blades 2a-2c in the position exceeding the boundary line with the said inclined surface.