Title:
PLUG, AND PACKAGE CONTAINER COMPRISING PLUG
Document Type and Number:
Japanese Patent JP2021138387
Kind Code:
A
Abstract:
To provide a plug which can facilitate rotational operation when detaching a cap, and sufficiently reduce finger pain when detaching the cap.SOLUTION: A plug 100 comprises a spout 30, and a cap 10 attached to the spout 30. The spout comprises a cylindrical side wall in which an outside screw is formed, and a flange 32 in one end side of the side wall. The cap 10 comprises a top plate 14, and a side wall 15 which is connected with an outer peripheral edge of the top plate 14, and in which an inside screw to be screwed with the outside screw is formed on an inner peripheral surface, and a knurling 13 is formed on an outer peripheral surface. The knurling 13 is configured by a saw-shaped protrusion 11, and a mountain-shaped projection 12 having height smaller than the saw-shaped protrusion 11, so as to be alternately arranged side by side along a circumferential direction. A top part of the saw-shaped protrusion 11 is closer to the mountain-shaped projection 12 adjacent to an upstream side than the mountain-shaped projection 12 adjacent to a downstream side, when viewed in a rotary direction of the cap 10 in detaching the cap 10 from the spout 30.SELECTED DRAWING: Figure 1
Inventors:
OKAZAWA HIROSHI
NAKANO YUSUKE
NAKANO YUSUKE
Application Number:
JP2020035809A
Publication Date:
September 16, 2021
Filing Date:
March 03, 2020
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B65D41/04
Domestic Patent References:
| JP2018184198A | 2018-11-22 | |||
| JP2015093735A | 2015-05-18 | |||
| JP2001354247A | 2001-12-25 | |||
| JP2015140214A | 2015-08-03 | |||
| JP2015067309A | 2015-04-13 |
Foreign References:
| US20130043207A1 | 2013-02-21 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yohei Suzuki
Yasunori Ishizaka
Yoshiki Kuroki
Yohei Suzuki
Yasunori Ishizaka