Title:
SYNTHETIC RESIN CAP
Document Type and Number:
WIPO Patent Application WO/2017/061001
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a synthetic resin cap that is able to, while being lightweight, retain a sufficient locking force with respect to an annular projection at a container mouth section. The synthetic resin cap according to the present invention is a cap (1) provided with: a skirting wall (3) having a female thread (5) that engages a male thread (M1) formed on the outer circumference of a container mouth section (M); and a tamper-evident band (9) that is connected to the lower part of the skirting wall (3) via an annular weakened section (10), wherein the inner circumferential side of the tamper-evident band (9) is provided with a plurality of engagement pieces (11) that are disposed at intervals in the circumferential direction in such a manner as to be able engage, from below, with an annular projection (M2) disposed on the outer circumference of the container mouth section (M), and at least some of the engagement pieces (11) are provided with a protruding portion (14).
Inventors:
KAWAMURA NOBUO (JP)
ONO JUNJI (JP)
UMEKI SHINGO (JP)
ONO JUNJI (JP)
UMEKI SHINGO (JP)
Application Number:
PCT/JP2015/078591
Publication Date:
April 13, 2017
Filing Date:
October 08, 2015
Export Citation:
Assignee:
NIHON YAMAMURA GLASS CO LTD (JP)
International Classes:
B65D41/34
Foreign References:
| US20050189312A1 | 2005-09-01 | |||
| US20050011855A1 | 2005-01-20 | |||
| US20040074861A1 | 2004-04-22 | |||
| JP2007534559A | 2007-11-29 | |||
| EP0856474A1 | 1998-08-05 |
Attorney, Agent or Firm:
FUJIMOTO Hideo (JP)
Download PDF: