SYNTHETIC RESIN CAP AND CONTAINER - NIHON YAMAMURA GLASS CO LTD

Title:

SYNTHETIC RESIN CAP AND CONTAINER

Document Type and Number:

WIPO Patent Application WO/2019/058550

Kind Code:

A1

Abstract:

Provided are a synthetic resin cap and a container that are capable of preventing inversion of a locking piece, broadening the locking margin of the locking piece in relation to an annular protrusion, and reliably breaking an annular weakened section at the time of opening. The cap 1 comprises: a skirt wall 3 having a female screw 5 provided therein that screws onto a male screw M1 formed on the outer circumference of a container mouth M; and a tamper evidence band 9 coupled to a lower section of the skirt wall via an annular weakened section 10. A plurality of locking pieces 11 that are capable of locking, from below, to an annular protrusion M2 provided in the outer circumference of the container mouth are provided on the inner circumference side of the tamper evidence band, with spaces therebetween in the circumferential direction. At least some of the plurality of locking pieces form a pair with only one out of adjacent locking pieces and have a protruding section 12 on the tip thereof. Protruding sections provided in locking pieces forming a pair are provided at positions mutually closer to the protruding section of the pair of locking pieces and are not provided at positions on the opposite side. A plurality of pairs are provided.

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Inventors:

KUROIWA YASUFUMI (JP)
KAWAMURA NOBUO (JP)
ONO JUNJI (JP)
UMEKI SHINGO (JP)

Application Number:

PCT/JP2017/034517

Publication Date:

March 28, 2019

Filing Date:

September 25, 2017

Export Citation:

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Assignee:

NIHON YAMAMURA GLASS CO LTD (JP)

International Classes:

B65D41/34

Domestic Patent References:

WO2017061001A1

2017-04-13

Foreign References:

JP2009107704A	2009-05-21
JP2017019510A	2017-01-26
US20030127418A1	2003-07-10

Attorney, Agent or Firm:

FUJIMOTO Hideo (JP)

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