To provide a square tube molding excellent in designability by affording a bend line to a cylindrical tube molding, and a method of manufacturing the same and a device for manufacturing the same.
A square tube molding is formed from a raw material sheet of a five-layer structure that a first layer (11a) constituted of a PE layer, a second layer (11b) constituted of a PET layer, a third layer (11c) constituted of an aluminum foil layer, and a fourth layer (11d) constituted of the PE layer are laminated in this order from an inner layer toward an outer layer, and the outside of the fourth layer (11d) is covered with a fifth layer (11e) constituted of the PE layer and is of a structure that it is shaped into a square tube (11) by affording a plurality of bend lines (11A) linearly extending from one end thereof toward the other end to a side part of a tubular tube (10) formed by rolling up the raw material sheet.
IMAIZUMI YASUYUKI
JPS5888344U | 1983-06-15 | |||
JPS5597932A | 1980-07-25 | |||
JPS5597933A | 1980-07-25 | |||
JPS55139229A | 1980-10-30 | |||
JPS566979A | 1981-01-24 | |||
JPH01116156U | 1989-08-04 |
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