DE7135887U - Containers, in particular cans or canisters - Google Patents

Description

3757

PATENT LAWYERS *

Sr O.PU .-. HVS. Ρ «. ,

BHAUNSCHWEIG MÜh-

Schiaalbach-Lubeca-V / erke AG

j 35 Braunschweig, Scbnalbachstrasse 1

o -

"Containers, especially cans or canisters"

The innovation relates to a container, in particular a can or a canister, with a lid that can be removed by means of a . closable opening, with your at least the opening

j forming rope is made of metal.

; In the case of the known containers of the aforementioned type, there is generally

common the lid made of a screw cap made of metal,

on a corresponding mating thread of the container neck ι
j is screwed on. In the screw cap is generally a

j sealing insert, for example a cork insert or else

'A plastic seal is arranged, which is connected to the opening edge

of the container neck cooperates to create a hermetic

To achieve closure of the container , especially if the

i holder for holding liquids or other!

- volatile products are provided.

Another type of closure is that there are 3 dor covers Plastic is made and as a print or Äj.ndrückdeckel The 3eljält6röffnuüg hermetically absucni; let be able. Such lids must snap-lock onto the container opening or i.-s the container opening can be pushed in and have sufficient elastic deformability, so that they have the required in the closed state of the container Can exert sealing pressure on the container rim.

Threaded closures for containers are relatively expensive in production and cumbersome to use, as they generally have several superposed threads and thus require cumbersome screwing movements. In addition, there is often a hermetic seal, especially after opening and closing several times of the container, cannot be reached. For the above reason, is generally used in containers with volatilizable Contents an additional closure of the 3ehistorhalses by a metal foil or the like. Provided that firmly with the container opening is connected and must be removed when removing the first part of the contents. Just leave it like that achieve that containers with screw caps, even if they are made of plastic, have a longer shelf life Make sure of their filling so that

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Closing the container after the first filling an additional effort results.

The use of plastic imprint or push-in lids show similar disadvantages with regard to sealing and can only be used where an elastic one is also used Deformability of the closure cap can be accepted.

It is the task of the innovation, a container of the aforementioned Kind of training so that the hacbtaile of the known Seals are avoided and a secure closure of the container with extremely simple handling is ensured

The one described is used to solve the above task Container according to the innovation by the arrangement known per se of projections forming threaded sections on the outer circumference of the metal part forming the opening in connection with a known screw-on lid with a sealing insert, which with its apron covers the opening edge of the container overlaps and corresponding to the threaded sections Has projections which binter grip the threaded sections in the manner of a bayonet lock.

The aforementioned design of the container closure is already used in glass containers, in particular for vacuum-packed contents known for a long time. This type of closure is suitable for experience

according to excellent for resealing containers, if the content is only removed in portions, whereby even "with little:!; effort always a hermetic seal of the The inside of the container is guaranteed against the external atmosphere. The sealing compounds developed for such closures are sufficiently elastic over very long periods of time deformable, so that even after the opening edge has been pressed into the sealing material by the despite

If the elasticity of the pressure zones is due to these indentations, it is possible to close the containers securely.

S The is especially for containers with volatile media

''" suitable as well as for aggressive media,

ueüe closure g

in which case it is only necessary to ensure that the Cover surface outside of the sealing material has a protective coating received so that the cover material cannot be attacked by the medium.

Opening and closing the container with the screw-on lid can be achieved by rotating the cover by less than 60 °, whereby due to the inclined arrangement the threaded sections large pressing forces can be generated at relatively low torques. Inaccuracies in the The opening edge of the container are largely compensated for by the flexibility of the sealing insert.

713S8I7-9.1Z71

A "particularly secure initial closure of the container can be similar to the well-known glasses with such yeri scbiüöseü by the fact that dsr Declcel under Yafemm a »f-

j is brought so that the

Headspace remains evacuated until first opening. In which Such containers can be closed by the vacuum cannot be restored, but by hermetically sealing the container, the lowest possible Amount of air comes into contact with the interior of the container

It is advantageous if the opening edge of the container can be pressed against the sealing insert of the lid by one Bör-del- or Hollrand is formed, this beaded or rolled edge is necessary for all thin-walled containers in order to cut the edge of the opening into the sealing insert impede. In the case of dioker-walled containers, however, it is sufficient if the opening edge of the container is rounded so that the sealing insert of the lid even if it is opened several times and reclosing is not injured.

It is also advisable to design the part forming the opening as a cone attached to the container body with a cylindrical or almost cylindrical section connected to it. These elements can be produced in a simple manner by non-cutting deformation and can be used for container bodies made of various materials. Through this

7135817-9.1171

t · .1

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gives s ^ co a significant advantage in manufacturing and Warehousing.

The new container has another great advantage over the screw-thread closures, one of which is that you can easily close relatively large removal openings, which is especially true for the contents of containers with high viscosity is important.

The drawing shows an embodiment of the innovation.

Fig. 1 is a schematic view of a container according to the Innovation again.

2 shows a view of the underside of the lid.

O Pig 3 gives way to a section along the line III-III

Pig. 2 again,

! .lan recognizes from Pig. 1 first the container body 1, which made of metal or also of other material such as plastic, laminated paper or the like. Can consist. Over a suitable connection, for example a folded seam or egg. ν Klenranabt is the container body 1 with which the opening of the Container forming metal part 2 connected. The metal part 2 is conical in its outer area 3 and with a large

ie ·

• t »

opening angle of the cone formed, while the opening-side Part 4 in essence; is cylindrical in shape. There the "container opening" forming part 2 in the above example relatively thin-walled sheet metal is produced, it has a beaded edge 5 on the opening side.

The cylindrical part 4 is provided on its circumference with threaded ^ sections 6, of which in the example shown 4 sections are evenly distributed over the circumference, leaving relatively wide spaces.

The one in the Pig. 2 and 3 illustrated cover, which is designated as a whole with 7, v / eist a cover surface 8, on the circumferential edge area extending over an annular recess 9 and at the level of the cover surface 10 an apron section 11 connects, which a lower Has curl 12. In this curl 12 there are projections 13 by means of deformations and indentations corresponding to v- ' provided, which when the lid 7 is applied to part 2 of the container according to Pig. 1 with the thread abutments 6 cooperate in the manner of a bayonet lock and the threaded sections 6 reach under.

The cover 7 is in the area between the circumferential recess 9 and the skirt section 11 with a sealing insert T4, which consists of a permanently elastic plastic and ait the opening edge or the

Rolling 5 of the part 2 forming the opening of the container together.

Claims (3)

• · · ι Protection claims 1. Container, especially can or canister, with a through a removable lid closable opening in which at least the part forming the opening is made of metal, characterized by the per se known arrangement of projections forming thread sections (6) on the outer circumference of the metal part forming the opening (2) in connection with a known screw-on lid (7) with sealing insert (14), v / elcher with its apron section (11) overlaps the opening edge of the container and has projections (13) which correspond to the C-thread sections and which form the threaded sections in the manner of a bayonet lock reach behind. 2. Container according to claim 1, characterized that the opening edge of the container from one against the sealing insert (14) of the lid (7) compressible beaded or rolled edge (5) is formed. 3. Container according to claim 1 or 2, characterized in that the forming the opening Part (2) as a cone attached to the container body (1) (3) is formed with an approximately cylindrical section (4) adjoining it.