Dispensing – With frangible closure for outlet
Patent
1987-01-27
1989-01-03
Rolla, Joseph J.
Dispensing
With frangible closure for outlet
222556, 220269, 220335, B65D 1732, B65D 4324
Patent
active
047950650
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a spout for packaging containers in which milk, juice and other beverages are filled in hermetically sealed state. The spout in accordance with the present invention is applied advantageously to, for instance, gable-to-sealed type paper containers, rectangular-box-shaped paper containers or the like.
BACKGROUND ART
Heretofore, in order to dispense the content in packaging containers containing milk, juice or the like, an opening is formed by cutting off or pulling out the sealed portion of the containers. For this purpose, scissors are needed or a considerably great opening force is required. Further, the fingers of the person opening the container contact with the opening so that the latter cannot be maintained in sanitary condition. Furthermore, in the case of providing an opening forming means in the form of a spout having a sealing cap thereon, the spout main body and the sealing cap must be separately fabricated so that the fabrication steps are increased in number and the fabrication costs become expensive.
The object of the present invention is to provide a spout for a packaging container which makes it unnecessary to cut off or pull out the sealed portion of the container or to remove a sealing cap for the purpose of dispensing the content of the container, which makes it easy and simple to open the container for dispensing the content and to reclose the same, which can be kept sanitary and be produced easily and which can be operated easily.
DISCLOSURE OF THE INVENTION
A spout in accordance with the present invention comprises a main body which has means for attaching the main body to a packaging container and which has an opening, and a cover which is formed integral with the main body to close the opening. The cover has one side integrally joined to the main body through a reduced-thickness portion which forms a hinge portion, and the remaining portion except said hinge portion is integrally joined to the main body through a reduced-thickness separable portion. A first engaging means formed integral with the outer surface of the main body is provided outside of the hinge portion but adjacent thereto. A second engaging means is formed integral with the outer surface of the cover at a position inside the hinge portion. The second engaging means is so designed, constructed and positioned that when the cover is swung in the opening direction about the hinge portion after the reduced-thickness separable portion is severed, it will engage the first engaging means so as to maintain the cover in the opened state. The first and second engaging means are made of the same elastic material.
The spout in accordance with the present invention can be attached to any suitable packaging containers. When a liquid filled into a packaging container is to be dispensed, the reduced-thickness separable portion between the cover and the main body is severed and the cover is swung in the opening direction about the hinge portion so that the cover can be maintained in the opened state by the mutual engagement of the first and second engaging means which are disposed on the main body and the cover, respectively and are spaced apart from each other with the hinge portion therebetween, whereby the liquid content can be discharged. When it is desired to stop the discharge, the cover is fitted with the main body, thereby closing the spout.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a packaging container to which is applied a spout in accordance with the present invention;
FIG. 2 is a perspective view of a spout in accordance with the present invention;
FIG. 3 is a longitudinal sectional perspective view thereof;
FIG. 4 is a longitudinal sectional perspective view illustrating the cover of the spout in an opened state;
FIG. 5 is a longitudinal sectional perspective view of the spout with the cover in closed state after the cover has been opened;
FIG. 6 is a longitudinal sectional view of an upper portion of a packaging container to which is appli
REFERENCES:
patent: 586492 (1987-07-01), Hauman
patent: 677466 (1901-07-01), Ortner
patent: 2196530 (1940-04-01), Johnson et al.
patent: 3966080 (1976-06-01), Bittel
patent: 4103804 (1978-08-01), Fournier et al.
patent: 4265367 (1987-05-01), Vogt
patent: 4669640 (1987-06-01), Ando et al.
Ashizawa Kenji
Uematsu Hiroshi
Dai Nippon Insatsu Kabushiki Kaisha
Pedersen Nils E.
Rolla Joseph J.
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