Title:
MANUFACTURING METHOD FOR BOTTLE CAN
Document Type and Number:
Japanese Patent JP2019112139
Kind Code:
A
Abstract:
To provide a bottle can that is able to maintain excellent sealability even in a case where internal pressure acts on it, and to provide a capped bottle can and a manufacturing method for a bottle can.SOLUTION: A bottle can has, on the outer peripheral part of a mouth thereof, a curled part formed by folding an open leading-end radially outwards. The outer peripheral surface of the curled part has, in a vertical cross-section along a can axial direction, a highest-point folded part continuing from the highest-point part of the upper end of the curled part and projecting radially outwards; and a lower-end bent part continuing to the lower end of the highest-point folded part and projecting radially inwards. The bottle can is formed such that the height in the can axial direction from the highest-point part to the upper end of the lower-end bent part is in the range of 7/10 or greater but 9/10 or less of the height of the curled part.SELECTED DRAWING: Figure 1
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Inventors:
KAMATA MOTOHIKO
Application Number:
JP2018123928A
Publication Date:
July 11, 2019
Filing Date:
June 29, 2018
Export Citation:
Assignee:
UNIVERSAL SEIKAN KK
International Classes:
B65D1/02; B21D51/38; B65D1/00
Attorney, Agent or Firm:
Masakazu Aoyama