DE3001478C2 - Devices for the liquid-tight closing of a container, blank for the manufacture of the container and containers made therefrom - Google Patents

Description

F i g. 2 shows a longitudinal section through the base section with two diametrically opposite lugs on the container wall and

3 shows a cross section through the bottom area of a Container wall with inside, two-part sealing tool.

With 1 in FIG. 1 denotes a container, the one circular cross-section and the container wall 2 of which is täldet from a rectangular blank The container wall is closed along an axially extending longitudinal seam 3 - the longitudinal seam 3 is the Both of the facing edge strips of the blank are arranged so as to overlap each other Overlap, a recess 4 is created on the inside of the container immediately next to the longitudinal seam 3. is

A cap-shaped part 5 with a peripheral wall is provided for the liquid-tight closure of the container 6, which rests against the container wall. In the embodiment according to FIGS. 1 and 2, the Container wall 2 has a projection 7 formed thereon, which is üiugtJegt inward and on the free side of the university wall 6 is applied

When pressing the peripheral wall 6 and the container wall 2 for mutual sealing is by the interposition of the projection 7 between the Circumferential wall 6 and a sealing tool, not shown, pressed the circumferential wall into the recess This is shown in FIG. 3, where the circumferential wall 6 is pressed into the recess 4 however, by means of a correspondingly designed material stick molded onto the sealing tool 8.

This strip of material could also just be inserted between the sealing tool and the peripheral wall be.

When using a projection T molded onto the container wall with a protruding length which is greater than the axial length of the peripheral wall of the cap-shaped part, the end piece of this projection T can - as in FIG. 2 - to be applied to the radial section of the. * Cap-shaped part 5. The end of the extension T can then be grasped to open the container and the container torn open.

1 sheet of drawings

50

65

Claims (4)

1 2 Due to the alis formation of the container with an axial 1. Device for liquid-tight closure. The cap-shaped part of this container shape Adapting one of one or more blanks from the outset would be difficult and would have to be done in advance Container with at least one axially extending for bringing the two parts together - Befende Has longitudinal seam, which is very expensive due to the overlapping holder wall and cap-shaped part. Gluing or sealing the two Randab- From US-PS 2415323 it is known, the Einsieschnitte of the blank is formed, and by gelling the closure part with very high pressure a cap-shaped part is closed, which to make 10 and, moreover, a relatively large amount with its closed section inward to use in sealing compound to close the gap next to the the opening of the container is used to close with a longitudinal seam. Tool for pressing and sealing the surrounding- Both measures cannot be satisfactory, however, since the catch wall of the cap-shaped part on the wall is easily exposed to a high pressure (8) on the other hand, the high consumption of sealing compound has unlaid or molded material strips, which are economically and technically difficult to control.
which corresponds to the recess (4) of the container (1) in the The invention is based on the object of providing a front area of the longitudinal seam and when pressing the direction or a blank with which it sen and Axsäegeln the circumferential wall (6) of the cap 20 it is possible to press the part (5) into this recess that is absolutely liquid-tight, with the lowest possible contact pressure and sealing 2. Cutting to create a liquid-tight mass consumption. closed container with at least one axially. This object is achieved according to the invention, running longitudinal seam, which by overlapping that the pressing and sealing tool has an applied gluing or sealing of the two Randab- 25 or molded material strips, which sections of the blank is formed and which through the recess of the container in the area of the longitudinal a cap-shaped part is closed, which corresponds to the seam and when pressing and sealing the opening of the container is inserted with its closed section inwards in the circumferential wall of the cap-shaped part, thereby pressing the recess into the pressing pressure remains characterized that a projection (7, T) integrally formed on the blank for production 30 also in the area of the recess on the same len of the container wall (2), as it is for the rest of the seal from the wall of the cap-shaped part (5) is sufficient can be folded down and when pressed or sealed. Another solution to the problem is earth Circumferential wall (6) on aen container, this in the inventive with a blank to produce egg recess (4) next to the longitudinal seam (7) presses 35 Nes liquid-tight sealed container in that 3. Container made from a blank according to an approach is formed on the blank, which can be folded over the claim 2, preferably with two axially extending wall of the cap-shaped part and the longitudinal seams, characterized in that the circumferential wall is pressed and sealed Each of the blanks that form the container wall (2) presses them into the recess next to the longitudinal seam because a shoulder (7, T) next to the longitudinal seam (3) The protruding length of the min- least the axial length of the peripheral wall (6) of the peripheral wall of the cap-shaped part constant so that cap-shaped part (5) corresponds and at which the risk of compression is switched off Inside is laid out, a sealing tool can also be used without an applied or 4. Container according to claim 3, characterized in that 45 molded strips of material are used for pressing in the cap that the protruding length of the approach pen-shaped part is used. An adjustment (7, T) is greater than the axial length of the circumference of the tool to the recess or a aufeinanwand (6) of the cap-shaped part (5) and the matched alignment of the recess and set with its from the container wall (2) tool can then be omitted. turned section on the radial section of the cap 50 An advantageous further development is a beeper-shaped Part (5) rests holder, which is made of two blanks according to the invention stands and is connected to two axially extending Has longitudinal seams, in that on each the container wall-forming blank in each case next to the longitudinal seam 55 an approach is formed, which protrudes in its The invention relates to a device for liquid length at least the axial length of the peripheral wall sealing one of one or more cap-shaped parts and their inner parts Blanks formed container, which is created at least inside. an axia! has extending longitudinal seam, which can be made by opening the container according to the invention Overlapping gluing or sealing of the two are even further facilitated if the protruding edge portions of the blank is formed, and the length of the extension is greater than the axial length which is closed by a cap-shaped part, wel- wall of the cap-shaped part and the Approach with ches is inserted with its closed section inwards in its section facing away from the container wall, the opening of the container, with a rests on the radial section of the cap-shaped part. Tool for pressing and sealing the circumferential 65 The invention is illustrated in the drawing using several wall of the cap-shaped part on the wall of the container embodiments. It shows
ters, or a blank for the production of such a Fig. 1 is a representation of a container with longitudinal Container and a container made in this way. seam and projections formed on the container shell;