Container

Patent metadata

Field	Value
Publication number	US-9902546-B2
Application number	US-201414902116-A
Country	US
Kind code	B2
Filing date	Jun 27, 2014
Priority date	Jul 1, 2013
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

Provided is a container with which a width and a position of a lid member to be unsealed can be readily made constant, thus making it less likely for contents to be discharged too vigorously and making it easy to predict the discharging direction of the contents. A container body and a lid member of the container body are sealed to each other via an annular seal portion formed along a flanged face of the opening. At a specified position of the annular seal portion, there is provided a detaching seal portion which is to be detached in response to increase of an inside pressure of the container body associated with deformation of the container body based on an external force. At positions facing each other across the detaching seal portion, there are provided non-detaching seal portions comprised of a plurality of annular seal portions extending along a circumferential direction.

First claim

What is claimed is:

1. A container comprising:
a container body holding contents, and
a lid member for closing an opening of the container body, the container body and the lid member being sealed to each other via an annular seal portion formed along a flanged face of the opening, wherein
at a specified position of the annular seal portion, a detaching seal portion is provided to be detached in response to an increase of an inside pressure of the container body associated with deformation of the container body based on an external force, and
at positions facing each other across the detaching seal portion, a plurality of non-detaching seal portions are provided on the annular seal portion and include a plurality of secondary ring-like seal portions extending along a circumferential direction of the container body.

2. The container according to claim 1 , wherein
the detaching seal portion includes a reverse-oriented annular seal portion which projects toward a radial inner side of the opening.

3. The container according to claim 2 , wherein
an auxiliary detaching seal portion interconnects radial outer opposed ends of the reverse-oriented seal portion.

4. The container according to claim 1 , wherein
the detaching seal portion and the non-detaching seal portion are connected to each other via a pair of left and right connecting annular seal portions,
an outflow channel extends outwards from the detaching seal portion in a direction radially outward from the opening, and
a pair of auxiliary non-detaching seal portions extend to face each other from opposite sides of the outflow channel such that each auxiliary non-detaching seal portion is provided between a corresponding connecting annular seal portion and the outflow channel.

5. The container according to claim 4 , wherein
an outflow groove sunk toward the bottom of the container body is formed at a position of the flanged face of the container body corresponding to the outflow channel.

6. The container according to claim 1 , wherein
the annular seal portion is provided in the form of a groove sunk in a thickness direction of the flanged face by pressing the lid member against the flanged face via a seal bar having at its leading end an annular projection having a shape corresponding to the annular seal portion, and
the detaching seal portion includes an uneven sealing force groove having a smaller curvature radius on its radial inner side than its radial outer side.

Assignees

• Suntory Beverage & Food Ltd
• Suntory Holdings Ltd

Inventors

• Bushida Mitsuru
• Tanaka Daisuke
• Kado Takashi
• Yokoyama Hiroki
• Kitamasu Masayuki

Classifications

• B29C65/02

  by heating, with or without pressure · CPC title

• B29C66/131

  Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area · CPC title

• B29C66/71

  characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125) · CPC title

• B29C66/53461

  joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies · CPC title

• B29C66/8322

  Joining or pressing tools reciprocating along one axis · CPC title