Synthetic resin container lid

A technology for synthetic resin and container caps, which is applied in the direction of synthetic resin layered products, bottles/container caps, and containers tightly closed with caps, which can solve problems such as inability to remove

Active Publication Date: 2017-06-13
NIPPON CLOSURES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Patent Document 1 as described below discloses a synthetic resin container cap as a cap-type synthetic resin container cap capable of sealing the mouth and neck of the container with sufficient reliability, but which cannot be removed from the mouth of the container without using an unsealing tool. neck removed

Method used

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  • Synthetic resin container lid
  • Synthetic resin container lid
  • Synthetic resin container lid

Examples

Experimental program
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Embodiment Construction

[0026] Now, the present invention will be described in more detail with reference to the accompanying drawings showing a synthetic resin container cap constructed according to the present invention.

[0027] see Figure 1 to Figure 3 , the container lid shown here and marked with 2 as a whole may be integrally injection molded or compression molded from a suitable synthetic resin such as polyethylene or polypropylene, the container lid comprising a top wall 4 and a top wall 4 downwardly from the periphery Extended skirt wall 6 . The top wall 4 is circular in plan view and has a flat central portion and a peripheral portion inclined downward in the radially outward direction. Such as image 3 As clearly shown, two annular seals protruding downwards, an inner seal 8 and an outer seal 10 , are provided in the peripheral portion of the inner surface of the top wall 4 .

[0028] The skirt wall 6 is approximately cylindrical as a whole. An annular locking ridge 12 is formed in t...

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PUM

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Abstract

Provided is a cap-type synthetic resin container lid (2) configured so that the container lid (2) can be sufficiently easily removed from the mouth (38) of a container without requiring large force and so that, after being removed from the mouth (38) of the container, the container lid (2) is kept integrated without a part of the container lid (2) being separated and becoming debris. The container lid (2) includes thin-walled inverted sections (18) arranged at circumferential intervals and extending upward beyond a top surface wall (4) from the lower ends of the thin-walled inverted sections (18), the lower ends being connected either to the outer peripheral surface of a skirt wall (6) or to the boundary between the outer peripheral surface of the skirt wall (6) and the upper surface of the top surface wall (4); a retention wall (20) connected to the upper ends of the thin-walled inverted sections (18) and having a specific portion (22) in the circumferential direction, the specific portion (22) being split or being defined by a breakable weakened section (24); and an operation section (30) connected at a position aligned with the specific portion (22) to the outer peripheral surface of the skirt wall (6) by a connection section (28) radially extending from the outer peripheral surface of the skirt wall (6). The retention wall (20) and the connection section (28) are provided with an engagement receiving protrusion (26) and an engagement protrusion (36), the engagement receiving protrusion (26) and the engagement protrusion (36) cooperating with each other to limit the expansion of the retention wall (20).

Description

technical field [0001] The present invention relates to a synthetic resin container cap generally called a cap type, which is fitted to the mouth and neck of a container and is pressed down to be fitted on the mouth and neck. Background technique [0002] Patent Document 1 as described below discloses a synthetic resin container cap as a cap-type synthetic resin container cap capable of sealing the mouth and neck of the container with sufficient reliability, but which cannot be removed from the mouth of the container without using an unsealing tool. The neck is removed. The synthetic resin container cover includes a circular top wall, a cylindrical skirt wall extending downward from the periphery of the top wall, and a cylindrical stop wall connected to the outer peripheral surface of the skirt wall through a breakable connection part and connected to the skirt wall. The upper end of the operating portion extends downward beyond the operating portion of the skirt wall. In ...

Claims

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Application Information

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IPC IPC(8): B65D41/48B65D45/32
CPCB65D41/485B65D45/322B65D55/0863B65D55/16B65D41/48B65D45/32B65D41/3423B32B27/08B65D47/0838B65D55/12B65D2255/20
Inventor 岛田知弥富政孝
Owner NIPPON CLOSURES
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