To provide a molding method of a hollow body in which a hollow body such as a corrugated cardboard made of a resin or the like is processed so that the recess is a steep edge and the circumference section is even.
The molding method of a hollow body which forms a recess 19 at the surface of a resin hallow body 10 which has many hollow parts 18 in the inside includes: the half-cut step in which a cutter 24 which has a cutting edge corresponding to a recess is pushed into a thickness direction to a first depth from the surface to thereby separate a domain 13 corresponding to a recess from the circumference; and the pressing step in which a pressing body 26 is pressed into a thickness direction from the surface to the second depth of the domain corresponding to the recess separated from the circumference to thereby form a recess in which the domain corresponding to a recess of the hollow body is crushed in a thickness direction.
| JP2007055633A | 2007-03-08 | |||
| JPS4829594A | 1973-04-19 | |||
| JPH0858000A | 1996-03-05 | |||
| JPS5180489A | 1976-07-14 | |||
| JP2007022598A | 2007-02-01 | |||
| JP2002326476A | 2002-11-12 | |||
| JP2006256694A | 2006-09-28 |
Kyousei Tamura
Kitahara Yasuhiro
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