DE8018293U1 - Cap closure for container with threaded neck - Google Patents

Description

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The invention relates to a cap closure for containers with a threaded neck.

There are known closures which consist of a cap which has an internal thread and corresponding container can be rotated. These caps can be opened by any operator, including small children will.

There are also child-resistant closures, which consist of two interlocking Caps exist. The inner metal cap has an outward-facing knurling on its upper edge, whereas the outer cap has a knurling on its upper inner edge. If the outer cap is turned, so it slides easily over the inner metal lock and the sealed container will not be opened. However, if you exert pressure on the outer cap, so the inner knurling of the outer cap engages the knurling of the inner cap and the closed cap becomes open. In this known closure, the inner cap is made of metal, in particular aluminum. The outer cap is made of an elastic material so that it resembles itself when there is pressure on its top surface can expand and then return to its original shape. After prolonged use this closure there is a risk that the elasticity of the outer cap decreases and thus the edge

ment of the outer cap always engages in the knurling of the inner cap and the closure is therefore no longer childproof is.

The object on which the present invention is based "is to propose a cap closure that will allow kin-l which is safe and which functions even after prolonged use | remains capable.

This object is achieved according to the invention in that the inner cap has elevations on its top surface, that the outer cap has downwardly pointing elevations on its inner bottom surface, that the lower edge of the outer cap is bent inward and engages under the lower edge of the inner cap and that the elevations of the outer cap get between the elevations of the inner ^i: cap only when a pressure is exerted on the top surface of the outer cap.

This cap closure according to the invention can be simple Way to be unscrewed on each container with a threaded neck of the appropriate size. The cap lock is located on such a container, the outer cap slides along the inner cap without the inner cap Take your cap with you. If pressure is exerted on the top surface of the outer caps, they grip the bottom surface the outer cap located elevations in the on

the top surface of the inner cap located bumps and the inner cap can be together with the outer cap be rotated and thus the container can be opened. It is not possible for a child to use this cap closure to open. If it tries to turn the cap, only the outer cap slides along the inner cap »

The elevations of the inner cap and the outer cap are preferably arranged in an annular region, wherein the elevations of the inner cap are designed as radially extending teeth and each elevation of the outer cap formed by a downwardly curved edge of a radially extending slot in the top surface of the outer cap is. The number of slots is advantageously smaller than the number of teeth. According to this particular Embodiments grip those arranged in the outer cap Slits between the teeth on the top of the inner cap only when on the top of the pressure is applied to the outer cap. When the number of slots is less than the number of teeth, push the teeth up the outer cap when no counter pressure is applied by the operator. It is thus guaranteed that even after prolonged use, the outer cap only rotates together with the inner cap when pressure is applied to the top surface of the outer cap.

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In this particularly preferred embodiment, the production of the outer cap is particularly simple, as it is simply making numerous slots creates the desired elevations in the bottom surface of the outer cap will. One edge of each slot is bent downwards and thus forms the desired elevation.

According to a particularly preferred embodiment, there is the outer cap made of aluminum and the inner cap made of plastic. The inner cap is made, for example, in an injection molding process manufactured. In this case, the desired teeth or elevations can be easily placed on the inner cap be attached and at the same time the desired structure on the inner surface.

The invention will now be explained in more detail with reference to the accompanying drawings. Show it/

Figure Ί a perspective view of an inventive Cap closure, whereby the outer cap is drawn cut in half.

Figure 2 is a partial view of the top surface of the inner cap. Figure 3 is a partial view of the top surface of the outer cap.

According to Figure 1, the cap closure consists of the inner Cap 1 and the outer cap 2. Elevations 4 are arranged on the top surface 3 of the inner cap 1. The outer Cap 2 has elevations 7 pointing downwards on its bottom surface 6. The lower edge 8 of the outer cap 2 is bent inwards and engages under the lower edge 9 of the inner cap. The elevations 7 of the outer cap 2 are just like the elevations 4 of the inner cap 1 are arranged in an annular region. The elevations 4 of the inner Cap 1 are designed as radially extending teeth and the elevations 7 of the outer cap are through each a downwardly curved edge 11 of a radially extending slot 12 is formed in the top surface 1o of the outer cap 2. The number of slots 12 is smaller than the number of elevations 4.

If you practice on the top surface 1o of the outer cap 2. a Pressure off, the outer cap slides down and the elevations 7 get between the elevations 4 of the inner Cap 1. Turn up the pressure while still applying the pressure the top surface 1o of the outer cap 2 exercises this outer Cap, the inner cap 1 is taken along and the closure can be rotated from a container. Will not If more pressure is exerted on the top surface 1o of the outer cap, the elevations 4 press the outer cap upwards since the number of slots 12 is smaller than the number of protrusions 4. When the outer cap 2 is rotated, so

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it slides along the inner cap 1 and the inner cap 1 is not removed from the container.

FIG. 2 shows the elevations 4 on an enlarged scale the top surface 3 of the outer cap. These surveys 4 are designed as radial teeth.

FIG. 3 shows, on an enlarged scale, an elevation 7 which by the downwardly bent edge 11 of the radially extending slot 12 in the top surface 1o of the outer cap is formed.

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List of reference symbols

1 inner cap

2 outer cap

3 Top surface of the inner cap 1

4 Elevation of the inner cap 1

6 Bottom surface of the outer cap

7 Elevation of the outer cap 2

8 Lower edge of the outer cap 2

9 Lower edge of the inner cap 1

Top surface of the outer cap 2 edge of the slot 12 slot

Claims (3)

- 1 - Claims 1. Cap closure for containers with a threaded neck, characterized in that that the cap closure consists of two nested caps (1,2), that the inner cap (1) has elevations (4) on its top surface (3), that the outer cap (2) has downwardly pointing elevations (7) on its inner bottom surface (6), that the lower edge (8) of the outer cap (2) is bent inwards and below the lower edge (9) of the inner cap (1) takes effect and that the elevations (7) of the outer cap (2) only get between the elevations (4-) of the inner cap (1), when pressure is exerted on the top surface (1o) of the outer cap (2). 2. cap closure according to claim 1,
characterized, that the elevations (4; 7) the inner (1) and the outer (2) Cap are arranged in an annular area that the projections (4-) of the inner cap (1) as radial extending teeth are formed and that ^ ede elevation (7) of the outer cap (2) by a downwardly curved edge (11) of a radially extending slot (12) in the top surface (1o) of the outer cap (2) is formed. te ία «ο - 2 - 3. cap closure according to claim 2, characterized in that the number of slots (12) of the outer cap (2) is smaller than the number of teeth on the inner cap (1). 4-. Cap closure according to claim 1, 2 or 3, characterized in that that the outer cap (2) is made of aluminum and the inner cap (1) is made of plastic ".