| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for slitting a heterogeneous laminate material, by which a slit shape is sharp and the characteristics of an elastic adhesive (elastic adhesiveness or the like) do not deteriorate. SOLUTION: In a working method of forming a slit 1 in a heterogeneous laminate material board 2 composed of at least one or more elastic materials and at least one or more rigid materials, the method for slitting the heterogeneous laminate material comprises a step of cutting sides 1-1 facing each other of the slit 1 by using a cutting-off punch 3 having an acute triangle section 3-4 and a step of punching the other sides 1-2 facing each other of the slit 1 by using a punch 5. COPYRIGHT: (C)2004,JPO
|
