DE102013104226B4 - Resealable can end wall, end wall unit and box - Google Patents

Abstract

End wall unit having an end wall (10, 110, 210) of a can (12), in particular a beverage can, and a prefabricated closure body (36, 136, 236, 336, 436, 536), wherein the end wall (10, 110, 210) a Rim (14), an end wall mirror (16, 216, 316, 416, 516) encompassed by the rim (14), a closed, predetermined drinking opening (20, 120, 220) which can be opened by a closure section (23, 123, 223) of the end wall (10, 110, 210) is closed, an auxiliary device (18, 218) provided on the end wall mirror (16, 216, 316, 416, 516), by its direct actuation of the drinking opening (20, 120, 220) manually at least partially exposing, and a fastening means (34) for attaching a closure body (36, 136, 236, 336, 436, 536), with the exposed drinking opening (20, 120, 220) is resealable liquid-tight, wherein the Fastening means (34) radially between the drinking opening (20, 120, 220) and Hilfsvo means (18, 218) on the one hand and edge (14) on the other hand is arranged and wherein the closure body (36, 136, 236, 336, 436, 536) a holder (38, 138, 338, 438, 538) having a hole (48 ) and a closure cap (40, 140) for repeatedly sealing the hole (48) in a fluid-tight manner, and wherein the holder (38, 138, 338, 438, 538) is of annular design and can be attached via the attachment means (34) to the end wall (10, 10). 110, 210) is attached.

Description

The invention relates to the end wall unit of a can, in particular a beverage can, with an end wall and a prefabricated closure body, a can with an end wall unit and a closure body itself.

End walls for cans, especially beverage cans, are well known. They are placed after filling the box on this and connected to this, so that the box is closed. Usually, the end walls are integrally stamped from aluminum and completely closed over the area. However, a portion of the end wall is perforated, so that this section can be pressed by means of a suitable opening mechanism in the can interior and a discharge opening for the food contained in the can is created. In the case of beverage cans, this is usually made possible by a lever attached to the end wall, the so-called pull tab.

The disadvantage is that the opening produced in this way in the front wall of the box can not be closed again, so that the entire contents of the box must be consumed at one time or degenerate. In addition, unnoticed by the exposed opening insects can penetrate into the can, whereby the risk that the insects are subsequently swallowed by the consumer.

Various approaches for realizing a reclosable end wall have been pursued. However, easy-to-implement reusable closures seal the opening only insufficiently, on the other hand reliable sealing reclosure mechanisms are complex, mostly multi-part and therefore expensive to produce.

The WO 2012/112051 A2 shows an end wall unit having an end wall with a predetermined, open drinking opening and a multi-part closure. The closure is secured in the drinking opening and designed such that it can close the drinking opening repeatedly liquid-tight.

The US 4 582 216 also discloses an end wall unit having an end wall having a predetermined, open drinking opening. By a mounted on the end wall closure, on which an auxiliary device is formed, the drinking opening can be repeatedly closed. For this purpose, the closure has a projection which extends in the closed state of the closure through the drinking opening.

It is an object of the invention to provide an end wall unit for a can, which is liquid-tight resealable and inexpensive to produce. Furthermore, a reliably closable closure body and a correspondingly equipped box are to be produced.

This object is achieved by an end wall unit having an end wall of a can, in particular a beverage can, and a prefabricated closure body, wherein the end wall unit has an edge, an end wall mirror encompassed by the edge, a closed, predetermined drinking opening which is closed by a closure section of the end wall which can only be actuated once is an auxiliary device provided on the front wall mirror, by the direct actuation of the drinking opening can be manually at least partially exposed, and a fastening means for securing a closure body, with the exposed drinking opening is resealable liquid-tight, wherein the fastening means radially between the drinking opening and auxiliary device on the one hand and On the other hand, the closure body is arranged and wherein the closure body has a holder with a hole and a closure cap for repeated liquid-tight closing of the hole, esp In particular, wherein the cap can engage the holder to close the hole, and wherein the holder is annular and is fastened via the fastening means on the end wall. The holder and the closure cap advantageously together form an integral part. In this way, a reclosable box can be made using a cost-effective two-piece construction. In addition, a very inexpensive to produce end wall is provided, which can accommodate a closure body for Nederverschließ the drinking opening.

To connect the cap and the holder, for example, a film hinge is suitable. In this case, the fastening means is formed in particular by plastic deformation of the end wall. By way of example, it is a plastically formed sheet metal part.

The fastening means preferably surrounds the drinking opening together with the auxiliary device, preferably closed annularly, that is to say it extends around the drinking opening and also the auxiliary devices, so that the closure body can be fastened completely around the drinking opening, which allows a liquid-tight connection with a closure body.

For example, the fastening means is formed by an axially inwardly or outwardly projecting elevation of the front wall mirror itself, in particular by a limiting the collection Edge. This allows the formation of the fastener on the end wall without an additional process step for the production. "Axial" means parallel to the central axis of the associated box.

The edge can, preferably over its entire longitudinal extent, have an undercut in the end wall mirror, so that a positive, liquid-tight connection between the closure body and the end wall is made possible.

The positive connection can also be achieved in that the undercut extends only over portions of the length of the edge.

In one embodiment, the survey forms a plateau on which the drinking opening and / or the auxiliary device are arranged, whereby a more comfortable drinking from the sealed with the end wall box is possible.

Preferably, the drinking opening is spaced from the edge of the plateau, thereby avoiding that the drinking opening is partially covered by the closure body.

In another embodiment, a plurality of elevations, preferably in the form of embossed pin, formed in the end wall mirror, which complement each other to the circumferential fastening means. In this way, the closure body can be selectively attached to several locations of the end wall.

In a further embodiment, the auxiliary device has a closed vent opening, in particular in the closure section itself. With the aid of the vent opening can be vented before opening to compensate for an overpressure in the can, so that then the opening of the drinking opening can be done manually.

As an alternative to the above variants, the fastening means can be a surface for receiving adhesive, whereby a closure body can be fastened in a liquid-tight manner to the end wall in a cost-effective manner.

In a further embodiment variant, the closure portion is a part which is at least partially separated from the remainder of the end wall mirror, which is attached in a liquid-tight manner to the rim of the drinking opening by a peripheral plastic seal, the plastic seal being at least partially destructible by pressing in the closure portion. In this way, an end wall is realized, the drinking opening can be opened without tools, such as a lever or pull tab. In particular, the closure portion is first separated from the remainder of the end wall by punching, possibly while retaining a tongue. Subsequently, the stamped area is bridged by the plastic seal.

For example, the closure portion is an integral part of the end wall mirror and (with the exception of a tongue) delimited by a line of weakness from the rest of the end wall mirror, so that the end wall is simple to manufacture.

In one embodiment, the auxiliary device is a riveted metal tab, whereby an opening mechanism known to the consumer is selected.

For example, the holder is positively connected and / or by gluing to the end wall, wherein the holder preferably has an attachment edge complementary to the undercut, with which the holder engages behind the undercut, whereby a durable and reliable sealing of the drinking opening of the end wall is made possible.

Preferably, a separate, prefabricated plastic seal is present between the holder and fastening means, so that the tightness of the closed closure body is ensured.

The closure body may have a web which extends between two opposite sides of the closure body and thereby increases the stability of the closure body.

In a further embodiment, the closure body completely covers the auxiliary device and the drinking opening in the manner of a cap, so that contamination of the auxiliary device or the drinking opening as well as penetration of insects into the opened drinking opening is prevented.

Preferably, the hole is aligned with the drinking opening, so that the drink from the can is easily possible.

Furthermore, the invention relates to a can with an end wall unit, wherein the end wall or the end wall unit and a bottom of the box are formed so complementary that the box with other identical doses is stackable, wherein the edge of the end wall is pulled axially, so that the end wall mirror recessed to Edge is lying and the soil protrudes into the depression. This allows a space-saving storage of multiple doses.

The object is further achieved by a closure body according to claim 21.

Further advantageous embodiments of the invention form the subject of the dependent claims 22 to 24.

Further features and advantages of the invention will become apparent from the following description and from the accompanying drawings, to which reference is made. In the drawings show:

1 a perspective sectional view of an end wall according to the invention and according to 1a a detailed view of a vent opening in section,

2 a bottom view of the front wall after 1 .

3 a perspective view of a closure body for an end wall after 1 for forming an end wall unit according to the invention,

4 a perspective view of an end wall unit according to the invention with open closure body,

5 a perspective view of the end wall unit after 4 with closed closure body,

6 a perspective view of a second embodiment of an end wall according to the invention and a front wall unit according to the invention,

7 a bottom view of the front wall after 6 .

8th a perspective view of a third embodiment of the end wall according to the invention and a front wall unit according to the invention,

9 a bottom view of the front wall after 8th .

10a to 10c various other embodiments of the invention the end wall in cross section, and

11 several stacked cans according to the invention with end wall units according to the invention.

In the 1 . 1a and 2 is an end wall 10 for a tin 12 ( 11 ), in particular a beverage can. The front wall 10 is circular disk-shaped and has a closed peripheral edge 14 on, which is peripherally beaded at its end. The edge 14 surrounds or revolves a front wall mirror 16 to which an auxiliary device 18 and a drinking hole 20 are provided. The auxiliary device 18 is in the bottom view of the front wall 10 in 2 fully illustrated and has a vent 22 on.

The drinking opening 20 and the vent 22 Both are circular and each with a closure section 23 . 24 locked. The closure sections 23 . 24 are integral with the front wall 10 run and be through a tongue 25 , similar to a film hinge, on the front wall 10 held.

In the detail view of the 1a is the vent 22 including its associated closure section 24 shown in section and is an example of the structure of the drinking opening 20 and the drinking opening 20 associated closure portion 23 ,

The closure section 24 (or the closure section 23 ) has a larger diameter than the vent 22 (or the drinking opening 20 ). However, the edge portions of the front wall play gel 16 around the vent 22 around slightly raised, so that the closure section 24 partially extending below this edge portion and the vent opening 22 completely closes.

Concentric in the closure section 24 In addition, a survey is formed, extending through the vent 22 extends.

The sealing of the through the closure sections 23 . 24 closed drinking opening 20 and the vent 22 done by plastic seals 26 . 27 that the drinking opening 20 and the vent 22 rotate around the edge. They connect the closure sections 23 . 24 with the margins around the drinking opening 20 and the vent 22 fluid-tight around.

The plastic seals 26 . 27 are also designed at least partially destructible, so that the closure sections 23 . 24 by simple finger power from the front wall 10 to be solved. This applies to closure section 23 however, usually after opening the vent 22 that the auxiliary device 18 forms.

The entire auxiliary device 18 as well as the drinking opening 20 are on a plateau 28 formed, to which a part of the end wall mirror 16 is transformed, with the drinking opening 20 from the edge of the edge 30 , that is, a step, is spaced.

In the embodiment shown, the plateau extends 28 in the same axial direction as the edge 14 and is from an edge 30 , this means limited to a level that the auxiliary device 18 as well as the drinking opening 20 completely revolves.

The edge 30 indicates at her the plateau 28 facing end an undercut 32 which expands in the present embodiment over its entire longitudinal extent. The undercut 32 However, it may only be along parts of the edge 30 without affecting its function.

The edge 30 serves as a fastener 34 for fastening a closure body 36 on the front wall 10 , by means of which the once exposed drinking opening 30 can be closed again as often as you like.

The closure body 36 is in 3 shown in perspective and has a holder 38 and a cap 40 on. The holder 38 and the cap 40 are made in one piece and by a film hinge 42 connected to each other pivotally.

The holder 38 consists essentially of an annular section 44 whose inside is essentially one to the edge 30 having complementary geometry. The inside of the annular section 44 forms a fastening edge 45 the undercut 32 can engage behind, so that the holder 38 can be clipped onto the plateau via a latching mechanism.

In addition, there are two opposite portions of the annular portion 44 through a footbridge 46 connected so in the holder 38 two holes 48 are formed. Along its outer periphery, the holder 38 a holding section 50 on.

The cap 40 has essentially the same geometry as the holder 38 and has no holes. Along its periphery extends a latching section 52 that in the holding section 50 of the owner 38 can positively engage the holes 48 of the owner 38 fluid-tight, but at least fluid-tight, to close.

Furthermore, on the holding section 50 or at the resting section 52 a plastic seal (not shown) may be arranged, which is the fluid-tight locking connection between the closure cap 40 and holder 38 further seals.

Furthermore, on the cap 40 on the opposite side of the film hinge 42 a tab 54 for easier gripping and opening of the cap 40 intended.

In 4 is a front wall unit 56 shown from an end wall 10 and a closure body 36 is composed. The attachment edge 45 of the annular portion 44 of the owner 38 engages in the undercut 32 the edge 30 a, so that the closure body 36 positive fit with the end wall 10 connected is.

To improve the seal, the attachment of the annular section 44 on the edge 30 be reinforced by the application of an adhesive or the insertion of a sealing ring.

Furthermore, each aligned a hole 48 the cap 40 with the drinking opening 20 and the vent 22 or the corresponding closure sections 23 . 24 , and the jetty 46 extends between the drinking opening 20 and the vent 22 ,

In 5 is the front wall unit 56 with closed closure body 36 shown. In this case, the closure body extends 36 in the axial direction no further than the edge 14 the front wall 10 so that the closure body 36 not over the edge 14 protrudes.

To open the with the front wall unit 56 closed can 12 First, the vent 22 open. For this purpose, the closure section 24 For example, with one finger pushed into the inside of the can, this corresponds to 1 an impressions down. This is the plastic seal 27 destroys and pivots with the help of the tongue 25 on the front wall 10 inside the can.

Subsequently, in the same way the drinking opening 20 be released. For this purpose, the closure section 23 pressed in the direction of the inside of the can, for example with a finger, so that the plastic seal 26 tears down and is partially destroyed. The closure section 23 can now use the tongue 25 on the front wall 10 be pivoted into the can interior, so that the drinking opening 20 is released. Now the can 12 Liquid are removed.

To reclosure, the closure body 36 closed. This is the cap 40 to the holder 38 pivoted until the latching section 52 the cap 40 at the holding section 50 of the owner 38 locks. Due to the fluid-tight engagement of the cap 40 on the holder 38 and the likewise fluid-tight attachment of the closure body 36 on the fastener 34 is the front wall unit 56 and thus the can 12 now fluid-tight, but at least fluid-tight, closed.

The tin 12 Can now be transported without the risk of leakage of liquid. In addition, the closed end wall unit 56 that the drink in the can 12 stays fresh longer, as the closed closure body, a leakage of carbon dioxide is inhibited from the drink. Furthermore, no insects through the closed closure body 40 inside the can 12 could then possibly be inadvertently swallowed.

In the 6 to 10 Further embodiments of the invention are shown. These correspond to the embodiment according to the 1 to 5 , as a result of which only the differences are discussed and the same or functionally identical parts are provided with the previously introduced reference numerals.

In 6 and 7 is a second embodiment of the end wall unit 156 with front wall 110 to see. The drinking opening 120 as well as the closure section 123 In the second embodiment, they have a geometry similar to a teardrop shape. The closure section 124 the vent 122 is in the middle in the circular section of the closure section 123 arranged.

The plastic seals 126 . 127 are adapted in their form accordingly, like 7 shows.

Likewise, the geometry of the plateau 128 and thus the edge 130 changed. The plateau 128 is here designed circular disk-shaped, thus describing the edge 130 a circular path that forms the closure section 124 and the drinking opening 120 circulates.

In the same way is the shape of the closure body 136 , in particular of the annular portion 144 , to the circular geometry of the plateau 128 customized.

holder 138 and cap 140 are executed according to circular, with the tab 154 the cap 140 not on the opposite side of the cap 140 is attached, but slightly offset. Furthermore, the holder 138 no jetty 46 on.

A third embodiment is in 8th and 9 shown. In contrast to the previous embodiments, the end wall 210 no vent in this embodiment 22 on. In addition, the closure section 223 not already partially from the front wall 210 separated and closed by plastic seals, as previously explained, again fluid-tight, but the closure portion 223 is through a line of weakness 58 from the rest of the front wall 210 demarcated. The closure section 223 can also have a reinforcement contour 59 have, which can also be designed as a survey.

On the plateau 228 is on the front wall mirror 216 a metal bag 60 , also called Pulltab, provided the auxiliary device 218 forms. The metal ashes 60 is on an integrally molded rivet, for example, located on the plateau 228 located, fastened.

The metal ashes 60 is substantially annular, with a widened actuating portion 62 at its the closure section 223 facing side. Towards an operating section 62 opposite ring section 63 towards the Stirnwandspielgel deepens 216 gradually, so the ring section 63 can be lifted easily.

The closure body 236 is similar to the closure body of the first embodiment and includes both the drinking opening 220 or the closure section 223 and the metal ashes 60 ,

To open the drinking opening 220 becomes the metal tab 60 at the ring section 63 raised, so that the operating section 62 on the closure section 223 suppressed. By this force tears the front wall mirror 216 along the line of weakness 58 a, so that the closure section 223 almost completely from the front wall mirror 216 triggers, into the can interior pivots and thus the drinking opening 220 releases.

In the 10a to 10c are different embodiments of the end wall 10 with other fasteners 34 shown in section. For simplicity, therefore, on the presentation of the drinking opening 20 and the vent 22 or the closure sections 23 . 24 has been dispensed with. These embodiments of the end wall 10 are of course also on the embodiments according to the 6 to 9 applicable.

In the embodiment according to 10a is the plateau 328 as axially inwardly, that is to the can interior, projecting survey formed. In relation to 10a the plateau extends 328 from the unprocessed front wall mirror 316 going down. The undercut 332 is thus axially below the unprocessed end wall mirror 316 arranged and is by the complementary mounting edge 345 of the owner 338 of the closure body 336 engaged behind.

The embodiment according to 10b essentially corresponds to the first embodiment, with a plateau 428 formed as an axially outwardly projecting elevation. Again, the complementary to the undercut 432 shaped fastening edge 445 of the owner 438 in the undercut 432 a, so that the closure body 436 and the front wall 10 are positively connected.

To strengthen the attachment are also on the front wall mirror 416 outside the plateau 428 spigot 64 intended. These cones 64 be from the annular section 444 includes, thereby securing the closure body 436 on the front wall 10 is further strengthened. The cones 64 However, even without the formation of a plateau 428 for fastening the closure body 436 interact. Again, the again separately prepared closure body 436 on the attachment means (pins 64 ).

In the embodiment according to 10c is the closure body 536 in one the front wall mirror 516 circumferential side trough 66 attached. The side trough 66 borders on the edge 14 the front wall 10 but does not itself form part of the border 14 , The annular section 544 of the owner 538 is designed in a circle and fills the side trough 66 completely off.

Although in the embodiment according to 10c no undercut is shown, so is an education of an undercut on the side trough 66 possible.

In addition, it is conceivable that the fastener 34 as one on the front wall mirror 16 formed surface for receiving adhesive is realized.

In 11 are several doses 12 with end wall units 56 and floors 68 shown stacked on top of each other. Here are the floors 68 the cans 12 so convex that the closure body 36 the underlying cans 12 not on the floors 68 toast, though the cans 12 safely stand on each other. This is the edge 14 the front wall 10 pulled up axially, so that the front wall mirror 16 deepened to the edge 14 lies and the ground 68 protrudes into the depression.

The front wall 10 in the various embodiments may initially without closure body 36 getting produced. In this way, the closure body 36 later, for example, before or after connecting the end wall 10 with the can 12 , on the front wall 10 be attached, creating a flexible configuration of the can 12 but also without closure body 36 is possible. This has the advantage that the end wall 10 without closure body 36 has the same stack spacing as usual end walls, so that common filling systems with the end wall according to the invention 10 continue to be usable.

Furthermore, the closure body 36 separately from the front wall 10 or the can 12 to be expelled. So can the closure body 36 several times and on different doses 12 to be used.

Claims (24)

Front wall unit with an end wall ( 10 . 110 . 210 ) of a can ( 12 ), in particular a beverage can, and a prefabricated closure body ( 36 . 136 . 236 . 336 . 436 . 536 ), the end wall ( 10 . 110 . 210 ) a border ( 14 ), one from the edge ( 14 ) included end wall mirrors ( 16 . 216 . 316 . 416 . 516 ), a closed, predetermined drinking opening ( 20 . 120 . 220 ), which by a one-time operable closure portion ( 23 . 123 . 223 ) of the front wall ( 10 . 110 . 210 ) is closed, one at the front wall mirror ( 16 . 216 . 316 . 416 . 516 ) provided auxiliary device ( 18 . 218 ), by their direct operation the drinking opening ( 20 . 120 . 220 ) can be manually at least partially exposed, and a fastening means ( 34 ) for fastening a closure body ( 36 . 136 . 236 . 336 . 436 . 536 ), with which the exposed drinking opening ( 20 . 120 . 220 ) is resealable liquid-tight, wherein the fastening means ( 34 ) radially between drinking opening ( 20 . 120 . 220 ) and auxiliary device ( 18 . 218 ) on the one hand and edge ( 14 On the other hand, and wherein the closure body ( 36 . 136 . 236 . 336 . 436 . 536 ) a holder ( 38 . 138 . 338 . 438 . 538 ) with a hole ( 48 ) and a cap ( 40 . 140 ) for repeated liquid-tight closing of the hole ( 48 ), and wherein the holder ( 38 . 138 . 338 . 438 . 538 ) annular and via the fastening means ( 34 ) on the front wall ( 10 . 110 . 210 ) is attached. Front wall unit according to claim 1, characterized in that the fastening means ( 34 ) the drinking opening ( 20 . 120 . 220 ) with auxiliary device ( 18 . 218 ) rotates, preferably closed ring-shaped closed. Front wall unit according to claim 1 or 2, characterized in that the fastening means ( 34 ) by an axially inwardly or outwardly projecting elevation of the end wall mirror ( 16 . 216 . 316 . 416 . 516 ) itself is formed, in particular by an edge bounding the elevation ( 30 . 130 ) is formed. Front wall unit according to claim 3, characterized in that the edge ( 30 . 130 ) preferably over its entire longitudinal extent an undercut ( 32 . 332 . 432 ) having. Front wall unit according to claim 3 or 4, characterized in that the elevation is a plateau ( 28 . 128 . 228 . 328 . 428 ) on which the Drinking opening ( 20 . 120 . 220 ) and / or the auxiliary device ( 18 . 218 ) are arranged. Front wall unit according to claim 5, characterized in that the drinking opening ( 20 . 120 . 220 ) from the edge of the plateau ( 28 . 128 . 228 . 328 . 428 ) is spaced. End wall unit according to claim 3 or 4, characterized in that a plurality of elevations, preferably in the form of embossed pin ( 64 ), in the front wall mirror ( 416 ) are formed, which extend to the fastening means ( 34 ) complete. Front wall unit according to one of the preceding claims, characterized in that the auxiliary device ( 18 ) a closed vent ( 22 . 122 ), in particular in the closure section ( 123 ) itself. Front wall unit according to claim 1 or 2, characterized in that the fastening means ( 34 ) is a surface for receiving adhesive. Front wall unit according to one of the preceding claims, characterized in that the closure section ( 23 . 123 ) at least partially from the remainder of the end wall mirror ( 16 . 316 . 416 . 516 ) is separated part, which by a peripherally encircling plastic seal ( 26 . 126 ) liquid-tight at the edge of the drinking opening ( 20 . 120 ), the plastic seal ( 26 . 226 ) by pressing the closure portion ( 23 . 123 ) is at least partially destructible. Front wall unit according to one of the preceding claims, characterized in that the closure section ( 223 ) integral part of the end wall mirror ( 316 ) and by a weakening line ( 58 ) from the remainder of the end wall mirror ( 316 ) is delimited. Front wall unit according to one of the preceding claims, characterized in that the auxiliary device ( 218 ) a riveted metal tab ( 60 ). Front wall unit according to one of the preceding claims, characterized in that the closure cap ( 40 . 140 ) on the holder ( 38 . 138 . 338 . 438 . 538 ) to close the hole ( 48 ) can engage. Front wall unit according to one of the preceding claims, characterized in that the holder ( 38 . 138 . 338 . 438 . 538 ) positively and / or by gluing with the end wall ( 10 . 110 . 210 ) is liquid-tightly connected, wherein the holder ( 38 . 138 . 338 . 438 . 538 ) preferably one for undercut ( 32 . 332 . 432 ) complementary mounting edge ( 45 . 345 . 445 ), with which the holder ( 38 . 138 . 338 . 438 . 538 ) the undercut ( 32 . 332 . 432 ) engages behind. Front wall unit according to one of the preceding claims, characterized in that between holders ( 38 . 138 . 338 . 438 . 538 ) and fasteners ( 34 ) a plastic seal is present. Front wall unit according to one of the preceding claims, characterized in that the closure body ( 36 ) a footbridge ( 46 ), which extends between two opposite sides of the closure body ( 36 ). Front wall unit according to one of the preceding claims, characterized in that the closure body ( 36 . 136 . 236 . 336 . 436 . 536 ) the auxiliary device ( 18 . 218 ) and the drinking opening ( 20 . 120 . 220 ) cap-like completely covers. Front wall unit according to one of the preceding claims, characterized in that the hole ( 48 ) with the drinking opening ( 20 . 120 . 220 ) flees. Can ( 12 ), in particular beverage can, with an end wall unit ( 56 ) according to any one of the preceding claims. Box according to claim 19, characterized in that the end wall ( 10 . 110 . 210 ) or the end wall unit ( 56 ) and a floor ( 68 ) of the can are formed so complementary that the can ( 12 ) with further equal doses ( 12 ) is stackable, with the edge ( 14 ) of the front wall ( 10 . 110 . 210 ) is pulled axially, so that the end wall mirror ( 16 . 216 . 316 . 416 . 516 ) deepens to the edge ( 14 ) and the ground ( 68 ) protrudes into the depression. Closure body for repeated liquid-tight sealing of a can ( 12 ), in particular a beverage can, one of a front wall ( 10 . 110 . 210 ) the can ( 12 ) is a separate, prefabricated part, and a holder ( 38 . 138 . 338 . 438 . 538 ) with a hole ( 48 ) and a cap ( 40 . 140 . 640 ) for repeated liquid-tight closing of the hole ( 48 ), wherein the closure cap ( 40 . 140 ) on the holder ( 38 . 138 . 338 . 438 . 538 ) to close the hole ( 48 ), characterized in that the holder ( 38 . 138 . 338 . 438 . 538 . 638 ) a fastening edge ( 45 . 345 . 445 ) for attachment to an undercut ( 32 . 332 . 432 ) of a fastener ( 34 ) of the front wall ( 10 . 110 . 210 ), wherein the fastening edge ( 45 . 345 . 445 ) sideways from the hole ( 48 ) is spaced, and wherein the edge of the hole ( 48 ) a drinking opening ( 20 . 120 ) of the front wall ( 10 . 110 . 210 ) surrounds. Closure body according to claim 21, characterized in that on the holder ( 38 . 138 . 338 . 438 . 538 ) a seal for sealing the holder ( 38 . 138 . 338 . 438 . 538 ) on the front wall ( 10 . 110 . 210 ) is provided. Closure body according to claim 21 or 22, characterized in that the closure body ( 36 . 136 . 236 . 336 . 436 . 536 ) the auxiliary device ( 18 . 218 ) and / or the drinking opening ( 20 . 120 . 220 ) cap-like completely covers. Closure body according to one of claims 21 to 23, characterized in that on the closure cap ( 40 . 140 ) a latching section ( 52 ) and on the holder ( 38 . 138 . 338 . 438 . 538 ) a holding section ( 50 ) for the latching section ( 52 ) is provided, wherein the latching portion ( 52 ) in the holding section ( 50 ) positively engages when the cap ( 40 . 140 ) on the holder ( 38 . 138 . 338 . 438 . 538 ) is engaged.

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