Bottles and jars – Closures – Closure pivoted about receptacle opening
Patent
1992-10-13
1994-10-18
Shoap, Allan N.
Bottles and jars
Closures
Closure pivoted about receptacle opening
215235, 215253, 220254, 220265, 220339, 222541, 222556, B65D 4708
Patent
active
053560183
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a plastic closure comprising a base part fixed on a container and a cap connected thereto in one piece by a hinge and a gripping area located diametrically opposite the hinge which is at least partially covered by a security element disposed on the base part, where, in addition, securing means are provided on one closure part and on the security element which are interlocked with each other prior to the first time the closure is opened.
DESCRIPTION OF THE PRIOR ART
A plastic closure of the above mentioned type is taught by Spanish reference ES-UM-212,300. An outwardly protruding hook is injection-molded on the base of the closure which, in the closed position of the closure, engages a hole in the cap. A security band injection-molded in the form of bars on the base prevents access, so that the securing means can only be pushed apart after it has been removed.
Another embodiment of security elements is shown in European Patent Application EP-A-0,141,591 in which a hook is disposed on the cap, which hook in the closed position extends below a security band which is injection-molded on the base at a distance from its cover surface in the form of bars, which are also used as predetermined breaking points. Also, a variant is shown where a plurality of outwardly extending protrusions are provided on the cap, instead of a hook, which extend below the described security band. However, completely identical solutions are also taught by U.S. Pat. No. 4,487,324 and German Patent application DE-A-34,42,152.
All of these closures have the unpleasant characteristic that outwardly protruding parts remain either on the cap or the base even after first opening and removal of the security band. This is not only ugly, but also unnecessary. In addition, these remaining hook-shaped protrusions constitute a latent danger of injury, because the user might scrape the skin on his fingers in the course of rapid opening or closing.
Another solution, where this problem does not occur, is taught by U.S. Pat. No. 4,696,408. Here the security element only forms a cover of the recess for the grip, so that the cap cannot be grasped. However, this constitutes only a partial solution to the problem because such a closure does have a security element, but no securing means. Accordingly, such a closure is not suitable for a container in which interior pressure can build up. Lacking securing means which positively lock the base and cap together, the closure can open because of accumulating gases or underpressure in its surroundings, for example during transport of beverages in bottles over mountains.
In addition, most security-protected closures can be opened by manipulation.
SUMMARY OF THE INVENTION
Accordingly, it is an object of this invention to provide a plastic closure having positively locked securing means where there is no danger of injury after removal of the security element and which is nevertheless safe from vandalism.
This object is attained by a plastic closure in accordance with this invention comprising a base part fixed on a container and a cap connected thereto in one piece by a hinge, said closure having a gripping area disposed diametrically opposite the hinge which is at least partially covered by a security element disposed on the base part. Securing means are provided on part of the closure and on the security element which interlock with each other prior to opening of the closure for the first time. The securing means comprise means disposed on the security element and directed towards the casing wall of the cap which fit interlockingly with corresponding recesses in the cap aligned therewith.
At least one securing means is directed towards the center of the closure and is attached to the security element, which form-fittingly engages a snap-in opening in the base of the closure. The protruding portions of the securing means are simultaneously removed along with the removal of the security element, which renders the danger of injury d
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Caretto Vanessa
Createchnic AG
Shoap Allan N.
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