DE7803828U1 - CLOSING DEVICE FOR A ROUND BOTTLE - Google Patents

Description

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CLOSING DEVICE FOR AN OUT-OF-ROUND BOTTLE The innovation relates to a closing device for an out-of-round bottle, the closing device consisting of closing means which are arranged partly on the bottle neck and partly on the closure cap. The C 5 closure cap partially has an outline which corresponds approximately to the cross-section of the non-circular bottle body and is intended to be aligned in relation to the bottle body in the closing position.

There are already closure devices known in which the alignment of the closure cap by appropriate Elements are placed on the shoulder of the bottle (DT-AS 17 57 325) · These require closure devices However, certain bottle shapes and are not usable if the cap has no external except for the

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Pinch shoulder has pulled down area.

According to another proposal (CH-PS 386 867) has a closure part inserted into the plate opening an upper edge axially upwardly directed, arcuate projections, which in corresponding recesses after downward facing edge of the cap. Press when twisting the cap the projections up the cap over the locking elements so that the cap can be removed. These Latching devices, which are not described for non-round bottles, could also have the closure cap in hold a certain position to the bottle, but require an additional part to be used and are unable to rotate a closure to a certain position while pressing on the bottle.

A closure should be created for a flat bottle, on the one hand for the capture during Put on and take off has a sufficient size, but on the other hand with a relatively small amount of Plastic material can be produced. For this reason, a closure cap was chosen that has an upper surface has, which corresponds approximately to the cross-section of the bottle, but which otherwise only surrounds the bottle neck. In order to keep the tool costs for the closure cap low, a screw thread was not used and the closure designed as a push-on closure. This closure must be used especially after the bottle has been filled be aligned according to the bottle cross-section during the machineile placement, as this

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Position for packing the flat bottle in a folding box is necessary.

The task of the innovation is to design the closure device for the bottle described above in such a way that that an alignment of the closure cap with mechanical placement and pressing by simple elements on the closure device he follows.

The closure device according to the innovation is characterized in that on a cylindrical part of the Bottle neck, for example, two projections of approximately circular cross-section opposite one another on the circumference are arranged and that on the inner circumference of the closure cap overlapping the cylindrical part of the bottle neck a wave-shaped recess limited at the top and widening at the bottom for guiding and receiving this projections is provided. The locking device also has locking elements known per se in the form of an annular bead and a groove through which the closure cap on the bottle neck is closed Q 20 position is held. These locking elements are expediently near the upper end of the bottle neck or the interior of the closure cap, around the outer, lower end of the closure cap to be able to run as thin-walled as possible. The locking elements could thus also act as an additional seal serve. However, the actual sealing is expediently carried out by a sealing element which is in the Inside the closure cap is arranged.

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Further details of the closure device are shown schematically on the basis of the attached drawings illustrated embodiments described. In these show:

Fig. 1 shows the upper part of a bottle with an attached one Closure cap in section;

FIG. 2 shows a section through the closure cap according to II in FIG. 1.

3 shows a section through another closure cap; H shows a section through a further closure cap.

The indicated in Fig. 1 bottle 1, preferably from Plastic, has a rectangular or oval cross-section, the smallest dimension of which is almost the diameter of the Bottle neck 2 corresponds. The bottle neck 2 is set si <jh upwards in a cylindrical surface 3, to which an annular groove M adjoins, which is one of the locking elements forms and is separated from the uppermost end 6 of the bottle by an annular bead 5. On the cylindrical surface 3 two laterally protruding projections 7 are arranged,

f \ 20 if the cap can be put on in two possible positions.

The closure cap 10 has an upper surface 11 which is easy to grip when putting on and pulling off the cap is also permitted for small bottles and its dimensions roughly match the cross-section of the Bottle 1 matches. The closure cap 10 engages over parts 3 to 7 in the closing position the bottle neck away. An elastic locks in place

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inner. Annular bead 12 in the annular groove 4. The sealing ring 13 or a similar sealing element penetrates into the Piaschen opening, not shown. Annular bead 12 and sealing ring 13 are expediently molded onto the closure cap, which therefore consists of an elastic plastic. An inner cylindrical surface Ik of the closure cap 10 surrounds the cylindrical surface 3 of the bottle neck. In the bottom surface 14 is a recess 15. The recess 15 is delimited a wavy edge 16 upwardly through Γ 10th This wave-shaped edge 16 runs in such a way that in the closing position in which the surface 11 is aligned with the cross section of the bottle 1, each of the projections 7 rests partially against an upward bulge of the recess 15.

When the closure cap is put on, it is first pushed on in any position until the lower edge of the recess 15 at least partially overlaps the projections 7. Due to its own weight, the closure cap 10 falls until the edge 16 of the recess 15 ^{rests against the edges 1} C 20 of the projections 7 and slides further downwards, being guided by the projections 7 almost twisting into its final position. This final position is reached when the annular bead 12 engages in the groove 4 by mechanically pressing it on.

The rounded shapes of the edge 16 and the projections 7 ensure safe sliding, even if there are dimensional deviations on the bottle or on the closure parts

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happen. The projections 7 not only have a decorative effect but can also be used to align and transport the bottles for filling. The closure is easy to manufacture because the recess 15 widens towards the opening. This enables the use of simple injection molding tools. Both on the cap and on the bottle larger accumulations of material, which cause deformation of the plastic parts during the cooling after their preparation can r 10 could be avoided.

From the embodiment shown in FIGS. 1 and 2, certain deviations are within the scope of this invention possible. For example, the projections 7 can also be oval or semicircular and partially hollowed out being. The undulating edge 16 can also run irregularly and, for example, as shown in FIG. 3, consist of an edge approximately parallel to the axis of the closure 10 and an edge 16 which is more inclined. A sufficiently inclined edge 16 can also be used to rotate the closure cap 10 in a manner known per se Way to push up from the locked position.

In the embodiment of FIG. 4, the wave-shaped Edge 16 shaped so that with a part an alignment of the closure cap with mechanical axial Pressing on causes another part, however, engages under the projections 7 that when the Closing the cap by hand with a twisting motion

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Bottle.

is pulled down, whereby the locking elements snap into one another. In this example, the edge 16 simultaneously forms the lower ring surface of an inner cylindrical part 2k and this is surrounded by an outer jacket surface 25.

The number of projections 7 and the shape of the edge 16 corresponding to this number depends on the number the possible positions of the cap on the

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Claims (1)

It Il I 11 I. f Patent attorneys '''■'',''>' \, '>, »', '.' I \ / U 2086 (R) Dr. Franz Lederer
Dipl.-lng. Reiner F. Meyer ⁹ February 1978 80ΰ0 Munich 80 Luclle-Grahn-Stf. 22, valley. (089) 472947 UNILEVER N.V. Burgemeester s'Jacobplein 1 Rotterdam / Niederxande PROTECTION CLAIM Closure device for a non-round bottle, consisting of closure means on the bottle neck and one Closure cap, both of which are provided with locking elements in the form of an annular bead and a groove through which the cap is held on the bottle, and the non-circular cap by interlocking Elements on bottle and cap aligned in the sealing position with respect to the bottle is, characterized in that on a cylindrical part (3) of the bottle neck at least one Projection (7) of approximately circular cross-section and on the inner circumference of the cylindrical part (3) of the bottle neck overlapping cap (10) has an upwardly limited by a wave-shaped edge (16) -1- 7803828 10/26/78 1111) 1 ill! lit ττηΛθ / * / η \ recess (15) for guiding and receiving each projection (7) are arranged in the aligned position. -2-