TWI419818B - Getraenkedosendeckelverschluss - Google Patents

Description

Beverage can lid closure

The present invention relates to a closure for a beverage can.

A closure of the type described in the prior art has a flap that is secured to a rivet of the can lid and that is pivotable from an open position to a closed position above the first-class outlet opening and can be pivoted back.

It is an object of the present invention to improve the sealing function and operability of such a beverage can closure.

For this purpose, the flap is at least partially designed in the form of a curved snap-fit piece which can be bent by a force perpendicular to the cover surface from a stable first bending state and over a pressure point. And then changing to a stable second bending state, in which the outer edge of the flip cover rests on the cover edge with a closing pressure, the cover edge defines the outflow opening, and the fastening piece can be By the second force, the second bending state is jumped back to its first bending state [Knackfrosch effect]. For example, such a higher closing pressure can be achieved in that the outer cover has a slightly larger outer diameter than the first curved state since it is less curved in the second curved state.

Therefore, if this defines the outflow opening (Ausgieβ The cover edge area of the ffnung, tapout opening, for example, is designed in the form of a groove, so that in the second bending state, the cover can slightly or slightly embed the cover edge defining the outflow opening from the top or bottom. In the edge.

To actuate the fastening piece, if the rotating cover is attached to the rivet by a fixing clip, the rivet is extended by the fastening piece beyond a length beyond the rivet, the length being equal to an opposite action section, Very beneficial.

In a further embodiment of the closure of the above kind according to the invention, the closure has a compression clip for opening (Aufdr Cklasche, English: press-on fishplate), the compression clip is fixed on the flip cover on the rivet of the same can lid as the flip cover, wherein the flip cover is pressed in the closed position of the rotation of the clip Cutting edge" (Eindr The ckspitze, press-in tip) is held on the cover edge defining the outflow opening, and the end of the compression clip opposite the press-in tip is pulled high and supported against the can end and snapped.

If a support member is pivotally connected to the end of the compression clip opposite the press-in tip, the support member is pressed after the outflow opening and after the flip cover is rotated, when the compression clip is pressed into the tip end When the opposite end is pulled high, it can be snapped into a snap member of the can lid, so that the flip cover moved to its closed position is pressed by the "pressing tip" of the compression clip to the definition On the cover edge of the "outflow opening", the flip cover can particularly securely occupy the closed rotational position. This measure also provides a positive seal with respect to the can lid when the flip cover is in the closed rotational position.

The support member described above is preferably integrated with the compression clip and partially stamped from the compression clip for reasons of manufacturing technology. In order to make the support member easier to bend out from the compression clip, the end of the support member facing away from the rivet can be connected to the compression clip via a Umbuglinie (bracing line). In order to effectively engage the compression clip in the closed position, the length of the support member is about half the length of the compression clip and greater than about one third of the length of the compression clip, and the snap cover of the can lid (Raste) (It should be placed under the compression clip on the can lid, for example in the form of ribs or grooves, in all embodiments), in this case depending on the length of the compression clip from about half to one-third of the length ( Seen from the end of the compression clip). In the closed position of the engagement, the angle of the raised compression clip to the plane of the can cover surface is preferably between about 30 and 45 degrees.

The compression clip is attached to the rivet by a retaining clip that is partially stamped from the material of the compression clip. For the sake of simplicity, the rivet and/or the engaging member are integrally formed from the material of the can lid.

In a further feature of the invention, a guide slot is provided in the can lid to accommodate a squeegee on the underside of the flip cover (Auspr Gung). In this way, the flip cover can be reliably changed from the open rotational position of its rear side (relative to the rear side of the outflow opening) to the closed position in front of it, so that it is easier to use.

The flip cover can have a reinforcing edge (Verst) near the rivet or beside the rivet or on the side opposite the press-in tip Rkungssicke), the material can better withstand the stress of the material.

Furthermore, in order to make the movement easier when the outflow opening is closed, the can lid has a stop to stop the flap in its closed rotational position.

If the flip cover is applied at least partially (for example on the inside of its edge region), the sealing function can be further improved.

In order to make the action simpler, if the outer edge of the flip cover has one or several fins or similar grip regions, the flip cover can be easily held for rotation.

The material is selected in particular such that the material thickness of the can lid is preferably between 0.1 and 0.3 mm, particularly preferably about 0.224 mm, and/or the material thickness of the compression clip is preferably between 0.15 and 0.35 mm, in particular It is about 0.265 mm and/or the thickness of the flap is preferably between 0.05 and 0.15 mm, especially about 0.1 mm. Such a material may, for example, be rolled aluminum, which may be provided with a varnish (Klarlack).

Other objects, features, advantages and possible ways of applying the invention are found in the following description of the embodiments. All of the features described and/or illustrated in the drawings, whether individually or in any combination, are within the scope of the invention, regardless of the scope of the individual patent application or its dependency. .

With the closure system of the present invention of Figures 1a to 1d, the beverage can having a first-class closure (which is designed in the form of a "press-in opening") can be resealed, and the can lid D [for example, it is permanently crimped Fixed (aufb Rteln) to the upper end of a substantially cylindrical can body] has a rivet (5), a flip cover (2) rotatably fixed to the rivet, which can be rotated from an open rotational position to the outflow opening (7) ) A closed rotating position above, then turn back. In Figures 1a to 1d, the flip cover (2) is in a closed rotational position above its outflow opening (7). The outflow opening (7) is originally sealed by the can lid material, for example, with a pre-cracked line that is engraved and pressed to press it.

The flip cover (2) is at least partially designed in the form of a curved snap tab (S) which is biased from a stable first bending state by a force applied perpendicular to the plane of the cover, first bent and then over one After the pressure point, it can enter a stable second bending state. In this first bending state, the outer edge (10) of the flip cover (2) rests on the cover edge (9) [which defines the outflow opening (7)] with a "closing pressure" and can be reapplied The force causes the fastening piece (S) to jump from the second bending state back to its first bending state, as shown in Figures 1a to 1d. In the embodiment illustrated in Figures 1a to 1d, the fastening tab (S) occupies the main portion of the outflow opening (7) and its outer contour cooperates with the inner contour of the outflow opening (7), in particular in the form of a circle. .

The cover (2) slightly covers the cover edge (9) [it defines the outflow opening (7)]. Comparing Fig. 1a with Fig. 1b, it can be seen that in Fig. 1a, the snap-fit area of the flip cover (2) is first placed in the outflow opening (7) with a small gap therebetween, and after bending downwards, Figure 1b) is pressed against the cover edge (9) [which surrounds the outflow opening] to create a sealed condition.

The flip cover (2) is provided on the rivet (5) of the can lid (D) with a fixing clip (8). As seen by the snap-fit piece (S), the fixed clip (8) is extended beyond the rivet (5) by a distance [opposite "action section" (15)]. Comparing Fig. 1c with Fig. 1d, it can be seen that the fastening piece (S) can be changed from the second closed bending state to the first bending state by applying pressure to the action section (15). In the first curved state, the flip cover (2) can be slightly turned away to open the outflow opening (7).

With the closure system of the invention of Figures 2a and 2b, such a beverage can [with its outflow opening (7) designed to be "pressed in") can also be reclosed more reliably. Can lid (D) [for example, it is permanently crimped to the upper end of an approximately cylindrical can body (K)] in a conventional manner, a compression clip (1) is passed through a rivet (5) [It is formed on the can lid (D)] Connected by the "fixed clip" (8). A flip cover (2) can also be provided on the same rivet (5), which can be rotated around the rivet (5) of the can lid (D), so that the can lid can be opened after the outflow opening (7) is opened The "pressing clip" (1) on one end [this end faces away from the outflow opening (7)] is pulled up and pressed by the "pressing tip" (6) at the front to the "liding cover" of the pre-printing The area is brought to the closed position. After turning the flip cover (2) from the open rotational position shown in Fig. 2 to the closed position shown in Fig. 1, [wherein a squeegee (12) on the lower side of the flip cover (2) (Auspr Gung) is guided in a guiding groove (11) of the can lid (D) until it reaches the stopper (14) which touches the can lid (D)] has a support member (3) [it is hinged The method is pivotally connected to the outer end of the compression clip] from the outer end of the compression clip (1) to the direction of the can lid (D), and snaps into a snap of the can lid (D) (Raste ) (4) in a snap position. In this engaged position, the "compression clip" (1) presses the flip cover (2) with its indented tip (6) in front (which is in a closed rotational position) to press the clip (1) With the spring prestressing of the support member (3), the flip cover (2) is held securely and tightly on the cover edge (9) [the cover edge (9) defines the outflow opening (7)].

1 is indicated by a dashed line: the flip cover (2) is partially designed in the form of a snap-fit piece (S) which can be stably bent from above by a flat application force of the vertical application face surface - - after crossing a pressure point - into a stable bending position below, in the lower bending position, the outer edge of the flip cover (2) is pressed more strongly to the cover edge (9) than before [it defines Outflow opening (7)], resulting in a sealed closure. Here, the upward bending action of the fastening piece (S) in the initial bending position may be greater than the downward bending of the fastening piece (S) in the second stable bending state, so in the second bending state, The diameter of the cover (2) is slightly larger than that in the first bending state. In the first bending state, the fastening piece is arched upward, and is re-compressed to the cover (2) by a plane perpendicular to the cover surface. In the area of the fastening piece, the fastening piece (S) can be snapped back to the starting position of the upper arching.

After drinking the canned beverage, it can be simply resealed. Therefore, insects and dirt do not intrude into the inside of the can, and due to reliable sealing, if the can is stored in a backpack, the remaining beverage does not flow out of the can. To reopen, turn the compression clamp (1) slightly to one side until the support (3) is released from the engagement member (4) and the cover (2) is snapped back on the fastening tab (S). After it has been arched to its starting position, it can be transferred to its open rotational position.

In the illustrated case, the outflow opening (7) is circular, but may also be elliptical, trapezoidal (the corners of which may be rounded) or other shapes, the form-fitting flap on the outflow opening (2) The same is true of the shape. In particular, the outer edge (10) of the flip cover (2) can have one or more fins or similar gripping elements (in a manner not shown), which can easily hold the flip cover (2) Make a turn.

The material thickness of the "pressing clip" (1) may be slightly larger than the material thickness of the can lid (D), and the material thickness of the flip cover (2) is slightly smaller than the material thickness of the can lid (D).

(1). . . Compression clip

(2). . . Turn cover

(3). . . Support

(4). . . Clip

(5). . . rivet

(6). . . Pressing the tip

(7). . . Outflow opening

(8). . . Fixed clip

(9). . . Cover edge

(10). . . [turn cover (2)] outer edge

(11). . . Guide slot

(12). . . Printing department

(13). . . Reinforcing edge bulge

(14) ‧ ‧ stop

(15)‧‧‧ Action clips

(D) ‧‧‧canned lids

(F) ‧ ‧ strength

(K)‧‧‧canned bodies

(S)‧‧‧ Snaps

Figure 1a is a top view, a cross-sectional view and a detailed sectional view showing a beverage can lid closure of the present invention, wherein the closure tab of the flip cover is in a first rotated state in the closed rotational position;

Figure 1b corresponds to the view of Figure 1a, wherein the snap-fit tab of the flip cover is in a second curved state, wherein, unlike Figure 1a, the snap-fit tab is changed from its first curved state to its second curved state. Way of action;

Figure 1c corresponds to the view of Figure 1b;

Figure 1d corresponds to the view of Figure 1a, and different from Figure 1c, showing how the snap-fit piece returns from its second curved state to its first curved state;

Figure 2a is a schematic side view of a closure system (which has another embodiment of the invention) in which a bead is secured to a generally cylindrical can body with the flap rotated in a closed rotational position and the support member attached to the card Position

Figure 2b is a top view of the can lid of Figure 1 with the flip cover in an open, rotational position.

(2). . . Turn cover

(5). . . rivet

(7). . . Outflow opening

(8). . . Fixed clip

(10). . . [turn cover (2)] outer edge

(15). . . Action fragment

(D). . . Can lid

(S). . . Buckle piece

Claims (16)

A closure for a beverage can having a lid that can be moved from an open position to a closed position and re-turnable over an outflow opening (7) of a can lid (D), the lid being at least partially Designed in the form of a curved piece, the curved piece can be transferred from a stable first bending state to a stable second bending state by bending by applying a force perpendicular to the cover surface, in the second bending state An outer edge (10) of the cover bears against the cover edge (9) with a closing pressure, the cover edge (9) defining the outflow opening (7), and the bending piece can be re-energized Returning from the second bending state to its first bending state, characterized in that the cover is fixed to the rivet (5) on the can lid (D) as the same flip cover (2), and can be The open rotational position can be rotated over the outflow opening (7) of the can lid (D) to a closed rotational position and can be turned back, and is characterized in that the bending is an at least partially curved snap tab (S) Form, and the fastening piece (S) can be applied by applying a perpendicular to the cover surface Forcefully bending, and after overcoming a pressure point, shifting from a stable first bending state to a stable second bending state, and the fastening piece (S) can be re-applied from the second bending The state jumps back to its first curved state and is characterized in that a compression clip (1) for opening is attached to the can lid (D) on the flip cover (2) like a flip cover (2) The same rivet (5), wherein the cap is held in the closed rotational position of the head by the press-in tip (6) of the compression clip (1) on the cover edge (9) defining the outflow opening (7), The end of the compression clip opposite the press-in tip (6) is pulled up and supported against the can end (D) and snapped. For example, the closure of claim 1 of the patent scope, wherein: The cover (2) in some cases in the second bending state, the cover edge (9) defining the outflow opening (7) is slightly draped from above or below or slightly embedded in the cover edge or slightly buckled Live the cover edge. A closure according to claim 1 or 2, wherein: the cover (2) is mounted on the rivet (5) by a fixing clip (8), the fastening clip being supported by the fastening piece (S) The viewing system extends beyond a length beyond the rivet, which is equal to an opposite action section (15). A closure according to claim 1 or 2, wherein: a support member (3) pivots on an end of the compression clip (1) opposite the press-in tip (6), the support member (3) After the outflow opening (7) is pressed and the rotating cover (2) is rotated, when the end of the pressing clip (1) opposite to the pressing tip (6) is pulled up, it can be lowered Engaged into a snap member (4) of the can lid (D) such that the flip cover (2) moved to its closed position is pressed against the defined tip (6) of the compression clip (1) The cover edge (9) of the outlet opening (7). A closure according to claim 4, wherein the support member (3) is designed to be integral with the compression clip (1) and is partially stamped from the compression clamp and/or the support member ( 3) The end facing away from the rivet (5) is connected to the compression clip (1) by a curve, and/or the length of the support member (3) is smaller and more than the length of the compression clip. About one-third of the length of the clip is greater, and/or in the closed position of the clip, the angle of the plane of the opposing clip (1) to the facing surface is between about 30° and 45°. A closure according to claim 1 or 2, wherein the compression clip (1) is provided on the rivet (5) by means of a fixing clip (8), the fixing clip (8) being partially The material of the compression clip is stamped out. A closure according to claim 1 or 2, wherein the rivet (5) and/or the engaging member (4) are integrally formed from the material of the can lid (D). A closure according to claim 1 or 2, wherein the outer edge (10) of the flip cover (2) and the cover edge (9) defining the outflow opening (7) have a compression fit. A closure according to claim 1 or 2, wherein a guide groove (11) is provided in the can lid (3) to accommodate a scooping portion (12) on the underside of the flip cover (2). A closure according to claim 1 or 2, wherein the flip cover (2) has reinforcement near the rivet (5) or beside the rivet or on the side opposite the press-in tip (6) Edge uplift (13). A closure according to claim 1 or 2, wherein the can lid (D) has a stop (14) to stop the flip cover (12) in its closed rotational position. A closure according to claim 1 or 2, wherein the cover (2) at least partially rotates the sealing material. A closure according to claim 1 or 2, wherein the outer edge (10) of the flip cover (2) has one or more fins or similar protrusions that are easily grasped. For example, in the closure of claim 1 or 2, wherein the can lid (D) has a material thickness of between 0.1 and 0.3 mm, particularly preferably about 0.224 mm, and/or the compression clip (1) The thickness of the material is preferably between 0.15 and 0.35 mm, in particular about 0.265 mm, and/or the thickness of the rotating cover (2) The degree is preferably between 0.05 and 0.15 mm, especially about 0.1 mm. A can lid having a closure of claims 1 to 14 of the patent application. A can, which has a can lid of claim 15 of the patent application.