FI77626C - FOER TILLSLUTNING AV FLASKOR AVSEDD RIVKAPSYL. - Google Patents

Description

77626

Tear-off lid for closing bottles

The present invention relates to a tear-off lid for closing bottles.

Tear-off lids made of light metal for closing bottles are known, having a circumferential strip and a protruding flat disc-shaped part, the tear strip extending across the disc-shaped part and the circumferential strip and pasting a tear-off tongue, the tear lid is only partially attached to the bottom surface of the disc-shaped metal part.

Lids known in use must meet, inter alia, the following two requirements: - the lid must be easily removable from the neck of the bottle - the lid must be temporarily re-usable even after tearing.

To meet these requirements, which in practice cause various problems, a cover has already been proposed (cf. GB patent 1 320 490) in which a disc-shaped seal is attached to the bottom surface of the disc-shaped part of the cover itself, but only at a position opposite the pull-out tongue transverse to the cuts. In this way, the initial rupture of the lid is not prevented by a disc-shaped seal which remains intact and allows the lid itself to be reused later.

One disadvantage of this solution is that the subsequent reuse of the lid depends in principle on the residual resilience of the metal from which the lid is made. However, after two or three reuses in the bottle, the residual elasticity of the metal is almost exhausted, which is why the now unreliable reseal still loses its effectiveness.

77626 2

According to the invention, the problem is solved by a tear-off lid for closing bottles, the disc-shaped seal of which is attached to the disc-shaped metal part in only two separate zones on the sides and outside of the tear strip without attaching the tear strip to the seal.

In this case, it is advantageous to obtain a reclosure which depends on the resilience of the disc-shaped seal, so that the seal does not weaken even after several reclosings, but allows the lid to .

Further, the tear tape may be bounded by two tear lines which form extensions of the edges of the pull-out tongue and which terminate at a point opposite the tongue before the free outer edge of the circumferential strip.

The invention will now be described in more detail by means of a practical embodiment, which is shown by way of example only and not by way of limitation, and with reference to the accompanying drawings, in which Figure 1 shows a tear-off lid according to the invention in perspective, Figure 2 shows a lid according to cross-section II-II; 3 shows the lid as a view similar to Figure 2 after tearing and subsequent reattachment to the neck of the bottle.

As can be seen from the figure, the tear-off lid according to the invention is made of! 3 77626 and consists of a disc-shaped flat top 1 surrounded by a downwardly turned circumferential strip 2. From one zone of the strip, the lid has a pull-out tongue 3, the edges of which run along two tear lines 4 extending completely over the strip 2 and the disc-like part 1 terminate in said strip at a point opposite the tongue 3. The two cuts 4 thus delimit the tear strip 5, which forms an extension of the tongue 3 of the disc-shaped part 1, and the two side parts 6.

A sealing ring 7 is attached to the disc-like part 1. It is fixed to the bottom surface of said circular part, but to the two side parts 6, respectively, so that the tear strip 5 and the weakening or cuts 4 delimiting it remain completely free.

When the lid is attached to the neck of the bottle for the first time, the lid according to the invention requires the same measures which other lids normally require and which therefore do not need to be explained in more detail.

In principle, the user must also carry out the same operations when pulling out. It should be noted here that due to the interruption of the cuts 4, the torn lid remains in one piece.

The lid is removed from the neck 8 of the bottle due to the resilient elasticity of the disc-shaped seal 7, which allows the two opposite parts 9 of the strip and the corresponding parts 6 to be separated from the neck 8 of the bottle.

When the cover is completely removed, the resilience of the seal 7 returns the strip parts 9 to their initial position.

When it is desired to reattach the lid to the bottle, this can be done · easily and efficiently by gently pulling the two parts 9 of the strip 2 apart and thus applying tension to the seal 7 77626 which, when the lid is reattached, returns both parts 9 to the original closure. position.

Briefly, in the lid according to the invention, the disc-shaped seal 7 has, in addition to its usual function of ensuring a sealing seal, a new function in which it resiliently retains the original shape of the lid and thus allows an almost unlimited number of active reseals.

The present invention has been shown and described in the context of one preferred embodiment thereof, but in practice modifications may, of course, be made without departing from the scope of the invention.

Tue