Title:
A TAB OF A CAN
Document Type and Number:
Japanese Patent JP2018079937
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a tab of a can which prevents score fractures, opens easily and pours out its content quickly and smoothly.SOLUTION: An opening part on a tab of a can has a first opening which spreads toward the upper outer edge of the tab and a second opening which spreads toward the other side across a rivet. In terms of the planar view of the tab, when a line running through the center of rivet to the point farthest removed from the rivet on the first score is a Y axis and a line which intersects the Y axis in right angle at the center of rivet is an X axis, the end of the second score extends on the opposite side of the first score across the X axis, and the third score is formed at a part which includes a point of the score crossing the X axis. The thickness of a residual pressure part of the third score is formed bigger than the thickness of a residual pressure part of the center by 15-40%, and the thickness of a residual pressure part of the second score is formed equal to or more than that of the center and less than that of the third score. The length of the third score is formed to be 1.5-5.0 mm.SELECTED DRAWING: Figure 3
Inventors:
TANAKA MITSURU
MURAI HIROYUKI
ITO HIDEKI
MURAI HIROYUKI
ITO HIDEKI
Application Number:
JP2016221504A
Publication Date:
May 24, 2018
Filing Date:
November 14, 2016
Export Citation:
Assignee:
UNIVERSAL SEIKAN KK
International Classes:
B65D17/32
Attorney, Agent or Firm:
Masakazu Aoyama