| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a container, which makes it unnecessary to joint a bottom to a body part, when the container is manufactured from a material such as paper. ! SOLUTION: A method of manufacturing a container includes a step of forming a bottom 30 integrally with a cylindrical body part 20 by bending-deforming one end of a cylindrical body (paper tube 10), which is made of paper, a composite material containing the paper, or a resin, toward the side of the axial center A of the cylindrical body. In the step of forming the bottom 30, a round part 40, the diameter of which is gradually reduced toward the side of the bottom 30, is formed in a boundary part between the body part 20 and the bottom 30. ! COPYRIGHT: (C)2015,JPO&INPIT |
