DE1107540B - Container lock - Google Patents

Description

A plastic cap is often used to close containers to ensure tightness of the lock and offers the possibility of using the lock repeatedly. After filling the container, the plastic cap is covered with a metal capsule, which is deformable and holds the plastic cap on the bottle neck.

However, putting on the plastic cap and metal capsule at the same time is due to the deformation of the plastic cap difficult to put on. If this is slipped over the mouth bead of the bottle neck, so the metal capsule prevents deformation.

A plastic cap has therefore already been connected to a metal capsule in such a way that its lower edge is crimped and when the cap is placed on the bottle under the Bottle mouth bead places. The initially radially protruding edge of the metal capsule then turns inwards pressed or flattened so that it hugs the plastic cap everywhere. However, this solution is not entirely satisfactory, because it is difficult to ensure that the To achieve closure.

Closures have also become known in which between the plastic cap and the metal capsule Before it is fastened to the container, there is a free annular space which is used to allow the curling to enable the edge of the metal capsule. This closure has the disadvantage that the inside is smooth After opening, the plastic cap cannot be used on its own as a closure.

The invention relates to an improvement of container closures of the aforementioned type, such that when the closure is easily put on and tightly seated after opening it for the first time Plastic cap can continue to be used alone.

This is achieved according to the invention in that the side wall of the tearable metal capsule captively fastened plastic cap has an inner bead in a known manner and the free annular space between the side walls of the plastic cap and the metal capsule has a depth, approximately the difference between the radii of the container mouth bead and the one below it Corresponds to the outer groove on the container neck.

An exemplary embodiment of the subject matter of the invention is described below with reference to the drawings. It shows

Fig. 1 is a section through the consisting of a plastic capsule and a tearable metal cap Closure before closure,

Applicant:

Societe Anonyme: Emboutis Metalliques Appliques, Saint-Cloud-Coteaux,
Seine-et-Oise (France)

Representative: Dipl.-Ing. A. Wedde, patent attorney,
Munich 27, Schumannstr. 2

Claimed priority:
France from June 4, 1957

Gaston Dallay, Saint-Cloud, Seine-et-Oise

(France),
has been named as the inventor

2 shows a section through the closure placed on the mouth of a bottle, namely in the left half before clamping and in the right half after clamping,

Fig. 3 is only half of the top view of the closure.

The closure shown in Fig. 1 consists of a cap 1 made of plastic, for example polyethylene, the lower edge of which is provided with an outwardly protruding collar 1 α . This covenant is covered by the edge 2 a of a tearable metal capsule 2 which has a grip tongue 3. The outer diameter of the metal capsule is larger than the outer diameter of the plastic cap 1, so that a free annular space 4 is created between the side walls of the two parts with a depth that corresponds approximately to the difference between the radii of the bottle mouth bead 9 and the outer groove 10 located below it on the bottle neck.

The plastic cap 1 has an annular rib 7 on the top, which is in a corresponding annular groove 8 lies in the bottom of the metal capsule. This prevents the metal capsule against the Plastic cap, ζ. B. when clamping the lock, can move.

When closing, the plastic cap 1 and the tearable metal capsule are inserted 2 formed closure on the neck of the bottle 5, wherein the free annular space 4 is the plastic cap 1 allows to deform over the bottle neck.

10 »60 & / 152

The outer diameter of the metal capsule 2 is then reduced with the aid of a tool 6 by its side wall is pressed against that of the plastic cap, as shown on the right-hand half of FIG. 2 is shown.

The lock can only be opened after the handle 3 has been separated. After opening can the plastic cap 1, which is provided with an inner bead, is put back onto the bottle neck and with it Close the opened bottle tightly again and again until all of its contents are used up.

Claims (1)

PATENT CLAIM: Container closure, consisting of a plastic cap and a tearable metal capsule encompassing it, with a free annular space between the side walls of the plastic cap and the metal capsule prior to fastening on the container, characterized in that the side wall of the plastic cap (2) secured in a captive manner in the metal capsule (2). 1) has an inner collar in a manner known per se and the annular space (4) has a depth which corresponds approximately to the difference between the radii of the container mouth bead (9) and the underlying outer groove (10) on the container neck. Considered publications:
French Patent No. 1136 821. 1 sheet of drawings © 109 608/152 5.61