CS219562B1 - Closure for wide neck containers - Google Patents

Abstract

The closure consists of two parts, an inner and an outer part. The inner part ensures airtight closure of the container, while the outer part ensures attachment by means of gripping protrusions, by the force that arises between the neck and the gripping protrusions when the closure is pressed onto the neck. The gripping protrusions are formed obliquely.

Description

The invention relates to a closure for containers, in particular wide-necked containers, which are used for sealing fruit, vegetables, etc. Until now, a sheet metal closure and a glass closure with an auxiliary spring (pressure clamp) have been used very often. In practice, these closures can only be used once. Another drawback is that when they are opened, an opener or a hard object is used and the closure is deformed, furthermore, the throat may break off, broken pieces may enter the container, which is unsatisfactory for hygienic reasons. In the case of a glass spring with an auxiliary spring (pressure clamp), the drawbacks are that the pressure spring often deforms during opening and needs repair. As a further drawback, the glass closure breaks off.

These drawbacks result from the fact that when closing the container, the closure is pressed against the neck and closed by force. This force pushes the cap firmly against the neck ·. Therefore, a soft crush is required and the cap is seated so as to achieve a secure seal. Furthermore, it is necessary that the closure has an insulating ability. It is furthermore important that it has no malfunctions, and the cost of its manufacture must be kept as low as possible.

SUMMARY OF THE INVENTION The present invention provides a closure which overcomes the above-mentioned drawbacks in a large container and is particularly suitable for wide-necked containers used for cooking fruit and vegetables. The closure is made of two parts. When the container is filled, the closure is only pressed against the neck and by this movement the container is sealed airtight.

The closure according to the invention consists of two parts (internally) and an external part. The inner part provides for closing the container airtight, while the outer part provides for gripping by gripping protrusions, by the force exerted between the neck and the gripping protrusions when the closure is pressed against the neck. This force is also caused by the gripping projections being angled. The throat tries to squeeze the protuberances, but the protuberances exert a greater pressing force.

An embodiment of the closure according to the invention is shown in the drawings. 1 shows an axial section A-A of a closure having an outer part 1 and an inner part 2, on the outer part 1 there is a projection 3 which is fixedly engaged in a groove 5 on the inner part 2, which serves part 2 is fixedly connected, on the inner part 2 are provided gripping projections 6. The projections 6 are made obliquely (poid angle) to the axis of the closure, because when the closure is pressed against the throat, the throat of the projection 6 and further secured by the printing edge 4. The printing edge 4 squeezes the gripping protrusions 6 to the axis of the throat. When the container is to be opened, the extrusion edge 8 is pushed and thus the protrusions 7 are released from the groove 10 and then it is sufficient to gently squeeze the cap upwards and the whole cap will pop out of the throat. Fig. 2 shows the outer part 1 in axial section B-B and the view, wherein 3 is a projection which serves to connect the outer part 1 to the inner part 2, 4 is a pressing edge which serves to suppress the gripping protrusion 6, in FIG. 3 is seen in axial section C-C and, respectively, the inner part 2 of the closure, where 9 is the sheath and serves for sealing, the sheath 9 has a groove 5 for connection with the outer part 1 by means of a protrusion 3 gripping protrusions 6 and a locking protrusion 7 is provided for securing the closure; 4 is an axial section D-D, the cap inserted into the neck, wherein 1 is the cap and 2 is the neck of the container.

The closure can be made in the widest possible sizes according to the size and needs of the container. The closure can be made of polyethylene, which can be used in a wide range in the food industry, where it largely replaces sheet metal closures and hence tin. Corrosion and sheet metal will be eliminated, the production program will be simplified - spraying on the press is enough in one operation, opening the container will be easier, easier, without the help of an opener or another harder object. Furthermore, deficit metals will be saved and prices reduced.

This is similar when using a glass closure with a compression spring. The material is saved (the compression spring is made of sheet metal). A further advantage is that the caps proposed according to the present invention can be used multiple times without damaging the neck. Furthermore, fasting production, aesthetic is the closing of the container.

Claims (2)

219 562 3 4 OBJECT OF THE INVENTION A closure for a wide-necked polyethylene container comprising an outer portion of the inner portion characterized in that a printed-on window (4) is provided on the outer part (1) and a projection (3) for the periphery of the outer part [1]. joining the two parts (1,2) of the closure. 2. A closure according to claim 1, characterized in that the projection (3) is inserted into a groove (5) of the inner part (2), on which the gripping projections (6) are provided with throat protrusions (7) edge (8). 4 drawings