DE2421744A1 - DEVICE FOR OPENING THROUGH SCREW COVERS OR VACUUM SEALED BOTTLES, JARS AND SIMILAR CONTAINERS - Google Patents

Description

PotentaimSHe

8o23 Pullach, May 6, 1974

i-Pull «*, Wiener Str. 2
Ing. Hubertus von Inhoffen, 8ooo Munich 7o, Haderunstr. 68

Device for opening bottles, jars and jars closed by screw caps or vacuum

similar containers

The invention relates to a device for opening bottles closed by screw caps or vacuum, canning ; jars and similar containers, whereby the screw cap circumferentially ; moderately spaced, inwardly protruding threaded flanges or has internal threads formed by flanging the lid edge.

A bottle opener is already known which consists of a strand of elastic material and corresponds approximately to the size of the largest commercially available screw cap. A special embodiment of this known bottle opener consists of a ring-shaped string that is taken in one hand and the inner edge of which is pressed against the liand of the screw cap in order to loosen the screw cap with less effort, ¹ A relatively large torque must always be applied ! in order to loosen the screw cap in a vacuum sealed container so that air can penetrate into the container (DT-OS 2249918).

In addition, forceps-like devices for opening screw closures on containers are also known. (DT-OS 1607965). ■ Such devices are, however, relatively large and comparatively Complicated devices that cannot be used to open containers with very large screw-on lids (for example, jmach glasses) are suitable. The container to be opened must also always be held with an equal counter-torque ^ jwhat is only possible with one hand.

509847/0076

2A21744

The underlying task of the invention is to provide a To create a device of the type defined at the outset that is simple is constructed and a problem-free opening of vacuum-sealed containers without damaging the screw cap or screw cap allows, the torque required to loosen the screw cap is designed to be minimal.

This object is achieved according to the invention in that the device consists of a laterally attachable to a screw cap lever which has at least two projections of one on the upper surface of the screw cap and the other on the lower edge of the screw cap to the plant can be brought.

The invention is based on the idea that the opening of a container closed by a screw cap then problem-free if the vacuum in the container is removed before unscrewing the closure.

Extensive tests have surprisingly shown that almost all commercially available screw ^{lids can be warmed to a} sufficient extent and to such an extent that the vacuum prevailing inside the container is released in every case. It has also been shown that even screw caps, which have internal threads formed by flanging the edge of the cover, can be elastically deformed to a sufficient extent. If such a screw cap is screwed onto a container, lifted at any point on the lower edge of the cover, it has been shown that the relevant point of the edge of the cover resiliently springs outwards, although the usual large thread pitch causes the cover to be lifted sufficiently so that Air can enter the container.

An expedient embodiment of the invention consists in that the device consists of a two-armed lever whose axis of rotation can be attached to the upper palm of the lid and one lever arm of which has a projection in the form of a hook

509847/0078

24217U

has, which grips under the lower hand of the lid in such a way that that when the lever is pivoted, the cover is arched upwards in the area of the hook.

The device can be statically stable because it is in contact with the Lid are brought so that the lever arm having the hook is curved in itself.

In detail, the invention can experience an advantageous development that the other lever arm from one Angle part consists, and that one lever arm consists of a port set of a flange of the angle part. In this embodiment the axis of rotation of the lever then runs through the end edge of the upper flange of the other lever arm,

In order to be able to use the device even with very small screw caps (such as ketchup bottles) it is further provided that the length of one lever arm is essentially half of the smallest thread flange pitch that occurs or the threaded flange distance of a screw cap. The device can then be attached to the screw cap be set that the hook of a lever arm between two threaded flanges, and the axis of rotation of the lever at one the threaded flange comes to rest. The screw cap in question then becomes elastic between two threaded flanges arched at the top. The lever can then be safely attached to a cover without the risk of slipping when the hook section is between the two that run through the side limits of the lever Levels is located.

A further tool can expediently be attached to the other lever arm such as crown lock openers, can openers or corkscrews.

To protect the device against corrosive agents such as those in Household are common to make insensitive, an expedient embodiment is characterized in that it consists of a glass fiber reinforced plastic.

$ 509847/007

In the following wea the invention using an exemplary embodiment, explained in more detail with reference to aie drawings. Show it:

Fig. 1 is a perspective view of an embodiment according to the invention;

Fig. 2 is a sectional view along the line I-I of Fig. 1; and

FIG. 3 is a plan view of the device according to FIG in working position.

In Fig. 1, the device according to the invention is generally designated by 3. In the selected exemplary embodiment, there is the device 3 consists of a two-armed lever with the lever arms a and b, the lever arm a being designed longer than the lever arm b and at its end at 1, for example, a crown lock opener 2 known embodiment is. Instead of the crown lock opener 2 can also any other tool such as a can opener, so that the device according to the invention quasi a Can represent part of a combination tool. At the end of the lever arm a is also.ein side flange 4 in the The shape shown is designed and serves as a safe surface to attack to be reached when pivoting the device by hand. The lever arm a consists of an angle part with a upper flange or wana ending at edge c. The other flange or wall of the lever arm a goes into the curved one Lever arm b over, the curvature being at its greatest at 5. At the front end of the lever arm b is an integral part Hook portion 6 formed, uer an obliquely rearward has upper hook surface, such as; This is generally indicated by 7 in FIG. This inclined hook surface 7 is beneficial a sure grip of a hook on the lower hand of a screw cap when using the lever.

Fig. 3 shows a plan view of the device according to the invention in the working position to a screw cap 8 slightly

509847/0076

to be lifted from an unspecified container. The screw cap 8 has at 9> 10, 11 and 12 each have an inwardly protruding threaded flange. The device according to the invention is preferably in such a way on üen screw cap laterally assumed that the axis of rotation D-D (see Fig. 1) representing Edge c comes to lie in the area of one of the threaded flanges.

this

In the exemplary embodiment shown, the threaded flange 12 is. The screw cap then moves slightly in the area between the threaded flange 12 and 9 when the Heoel-irmes a is pressed down raised at the top so that air can enter the container in question. The screw cap can then be easily removed by hand screw off.

However, it has surprisingly been found that even when the hook portion 6 is directly under a threaded flange 9 »10» 11 or 12 comes a slight, sufficient lifting of the screw cap is possible, with elastic deformation of the screw cap taking place, so that After removing the device, the lid springs back into airtight contact with the opening edge of the container in question.

With the aid of the device according to the invention, vacuum-sealed containers can be ventilated without permanent deformation, so that the unscrewing of screw caps or screw caps is then possible with very little effort.

As can be seen from Fig. 3, the curvature of the lever arm b just so strong that the hook section 6 comes to lie essentially on the longest mitcellinie or the hook section 6 between two lateral boundary planes of the lever arm a is located, wu-iby the device static Stably attached to the side of a screw cap or pivoted can be and there is no Jefahr that the lever from Edge of the lid slips off.

A number of modifications and changes can be made, without departing from the scope of the present invention. For example, it is possible to use the lever arm a at the other end

509847/0076

of the lever b, in which case the edge c is the counter bearing represents the hook section 6. The lever is then not operated from top to bottom but from bottom to top.

All of the technical details that can be recognized in the description and shown in the drawing are essential for the invention significant.

S098A7 / 0076

Claims (1)

Pat ent claims 1. Device for opening bottles, preserving jars and similar containers closed by screw caps or vacuum, the screw cap circumferentially spaced from one another inwardly protruding threaded flanges or by flanging of the lid edge has formed internal threads, characterized in that the device (1) consists of a side there is a lever (3) which can be attached to the screw cap (8) and which has at least two projections (6, c), one of which (c) on the upper surface of the screw cap (8) and of which the other (6) on the lower hand of the screw cap (8) to the plant can be brought "· 2. Apparatus according to claim 1, characterized in that the device (1) consists of a two-armed lever (a, b) whose. Rotation axis (D-D) can be attached to the upper surface of the lid and one lever arm (b) of which has a projection in the form of a pure hook (6) which is positioned under the lower edge of the cover in this way engages, that when aes lever (3) is pivoted, the cover (8) is arched upwards in the area of the hook. 3. Device according to claims 1 and 2, characterized in that that the lever arm (b) having the hook is curved in itself (5). 4. Device according to claims 1 to 3, characterized in that the other lever arm (a) consists of an angle part, '■ and that the one lever arm (b) consists of an extension of a side flange of the angle part. 5. Device according to claim 4, üacurch -marked that the iDrehachse (DD) of the lever · (3) the end edge (c) of the upper durcn _i flange of the other lever arm (a) is formed. v6. "Device according to the preceding claims, characterized in that that the length of one lever arm (b) is essentially half of the smallest occurring thread! 509847 / -t- development or threaded flange stand (9-10-11-12) of the screw cap (8) corresponds. 7. Apparatus according to claim 3 »characterized in that the Hook portion (6) is located between the two planes extending through the lateral limits of the lever (3). 8. Device according to the preceding claims, characterized in that that on the other lever arm (a) further tools such as crown lock opener, can opener or corkscrew are provided are. 9. Device according to the preceding claims, characterized in that that the device (1) consists of glass fiber reinforced plastic » 509847 / 007S Blank page