Title:
BOTTLE CAN AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2021084636
Kind Code:
A
Abstract:
To prevent deformation such as buckling during capping.SOLUTION: A bottle can includes: a cylindrical barrel portion having an outer diameter of between 64.25 mm and 68.24 mm; a diameter reduction portion a diameter of which reduces from an upper end of the cylindrical barrel portion; a tapered cylindrical portion which is connected to an upper end of the diameter reduction portion and a diameter of which gradually reduces as going upward in a can axis direction; a neck portion a diameter of which further reduces at an upper end of the tapered cylindrical portion; and a mouse portion having an outer diameter between 36.0 mm and 40.0 mm of a swelling portion where a cap material is caught. The diameter reduction portion includes a convex-shaped bending portion connected to the upper end of the cylindrical barrel portion, and a recess-shaped bending portion formed at a lower end of the tapered cylindrical portion. An inclination angle of an outer surface of the tapered cylindrical portion against the can axis is between 5° and 10°, and on a vertical section surface through the can axis, a curvature radius of an outer surface of the recess-shaped bending portion is between 6.0 mm and 17.0 mm.SELECTED DRAWING: Figure 1
Inventors:
MINAMIUMA TAKAYUKI
HASEGAWA TAKASHI
HASEGAWA TAKASHI
Application Number:
JP2019212812A
Publication Date:
June 03, 2021
Filing Date:
November 26, 2019
Export Citation:
Assignee:
UNIVERSAL SEIKAN KK
International Classes:
B65D1/02; B21D41/04; B21D51/26; B65D1/16; B65D1/46
Domestic Patent References:
| JP2018104094A | 2018-07-05 | |||
| JP2018140826A | 2018-09-13 | |||
| JP2018140832A | 2018-09-13 | |||
| JP2019058915A | 2019-04-18 | |||
| JP2018177250A | 2018-11-15 | |||
| JP2018193101A | 2018-12-06 | |||
| JP2017523920A | 2017-08-24 | |||
| JPH01210136A | 1989-08-23 | |||
| JPH08156929A | 1996-06-18 |
Foreign References:
| US5355710A | 1994-10-18 |
Attorney, Agent or Firm:
Masakazu Aoyama