CN85107914A - Vessel head - Google Patents

Abstract

A kind of with the tear-open end socket on the cover of pour spout and exhausr port, comprise that airtight separately annular aperture circle part (21,23) in the aperture and the broken ground seal bore circle mouth of being embedded in also can force and get back to the stopple (22,24) that the aperture is sealed in the hole in enclosing once more, this stopple is linked together to the connector (25) on the hole circle part by flexible connect (for example, by a step element (32) and a clip (33)).The connection of each hole circle part (21,23) and other parts of end socket has guaranteed hole circle part perk and side travel relative to each other.For example, hole circle part except only with stopple (22,24) links to each other, directly connection each other.Circle part in hole can be connected by a narrow flexible bridge in addition.

Description

Vessel head

Involved in the present invention is a kind of tear-open end socket that is used for having at an end of container the container of a pour spout and an exhausr port, special but and not exclusive what relate to is a kind of like this tear-open end socket, this end socket is made by plastic material, be suitable for being embedded on the cover, this cover often engages with the can body crimping, comes splendid attire to be filled with the beverage of carbonate gas.

British patent specification the 1st, 389, having described such jar for No. 351 listens, it is equipped with an opening device, form by plastic material is molded, wherein have a formation topple over one of the elasticity mouth in hole or lid partial sum less relatively with the exhausr port vessel port coupling, described lid part connects with cover airtightly; An elasticity moveable part is connected to the lid part by a turning joint between the abutting end of described part, described moveable part has stopple at its lower surface, and this stopple is with airtight but be connected the edge in the aperture on the lid part for broken mode; And pull tab is positioned on the position of contiguous turning joint usually and is connected on the above-mentioned moveable part by two legs, and this two legs is around described moveable part, and is connected in the far-end or the outer end of moveable part, and peripheral adjacent with cover.If open this opening device, the user mentions pull tab, and two legs then is delivered to the power on the pull tab of acting on the outer end of moveable part, and the result breaks stopple from pour spout and exhausr port successively.Can open when continuing pulling and topple over the hole, open deflation hole then, turning joint then makes this moveable part stretch out from above-mentioned aperture, so that drink or topple over.Meanwhile card keeps turning joint to continue to link to each other, so that the stopple on the moveable part is installed in the aperture, seals the aperture once more.

In british patent specification the 1st, 389, end socket described in No. 351 is grouped into by aperture or cover section, comprising two annular aperture circle parts, they are embedded in the aperture tightly, and be positioned on the aperture, also comprise moveable part, this moveable part is connected to this bore portions by the interface between stopple and the hole circle and by turning joint.

The top moveable part, the structure of stopple can be made by plastic moulding on below part or bore portions and the hole circle interface, this plastic moulding has linear rigidity, this point and box type construction are similar, like this hole circle part just can not be toward each other easily wing rise, this point is very important when cover is easy to present arcuate in shape under the pressure effect in jar is listened for being embedded in the arch cover when end socket or working as.In this case, end socket will bend inevitably, thus the axis of hole circle will with the axis run-off the straight of another hole circle, each hole is enclosed correctly be embedded in the arch cover plate in the aperture separately.This rigid construction also mean hole circle part can not be created in aperture in the cover in the heart distance and hole circle part in virtually any size deviation between in the heart the distance, on thin sheet of metal, determined the bulk in aperture at cover, because the character of the plastic material that end socket had, so just having presented some contractibility in the assembling after molded changes, people are just expecting to enclose lateral drift or the elasticity that partly provides each other to a certain degree to the hole as a result, so that can be assemblied in the hole circle on the cover easily.

The end socket that uses plastic material to make has intrinsic elasticity to a certain degree, if but it is not again too practical using very pliable and tough material manufacture end socket, because hole circle part will break away from from the aperture eventually.Show by experience, when end socket being embedded on the arch cover, or present on the cover of arch under the pressure effect in being embedded in, perhaps when the yardstick of end socket changes, just produced the power that acts on the circle of hole by the peculiar rigidity of this structure described above, and in the distortion that takes place subsequently, caused leakage.

Therefore, the invention provides a kind of end socket that is used on container one end, having the container of a pour spout and an exhausr port, above-mentioned end socket becomes one by plastic material is molded, and comprise separately be used for be embedded in annular aperture circle part in the above-mentioned aperture in the air tight mode, and stopple separately, each stopple all is connected on the aperture of its annular aperture circle part with a broken cross section of being made by plastic material, is used for sealing aperture separately.Each stopple of formed thereby all makes after the aperture is opened in the broken cross section of disconnection, stopple can be forced to be got back in the circle of hole, seals the aperture once more, and these two stopples are coupled to each other by a connector, this connector is connecting in the circle of hole flexibly, and it is linked to each other with stopple after opening the aperture.It is characterized in that structure that the connection part branch between other parts of each hole circle partial sum end socket adopts has guaranteed that hole circle part is at the alerting ability of wing time-out each other.

More preferably, the coupling part between other parts of each hole circle partial sum end socket only is made up of the flexible connection part of this connector the broken accessory and the described hole circle part of stopple.Owing to do the directed coupling part that has saved between the circle part of hole like this, thus just to hole circle part with the alerting ability of relative wing time-out significantly and the alerting ability of side travel toward each other.

In first embodiment, described flexible connection part is made up of a flexible clip and a step element, and this flexibility clip is connected on the circle of a described hole, and described step element is connected to flexible clip on the connector.This connector can comprise a pair of fillet, and this is linked together the distal edge of two stopples to fillet, has so just allowed the relative wing of two stopples to play motion.

In second embodiment, described flexible connection part is made up of a pair of fillet, each fillet begins to extend from the connector adjacent with the pour spout stopple, one side through the exhausr port stopple, turn then, and then turn back again, one side topple over oral pore circle part through receiving again of exhaust oral pore circle part.After opening the aperture, folding fillet is drawn back the just feasible stopple that is drawn broken away from hole circle part, and then just can topple over or drink.

In some cases, the directed coupling part between the circle part of hole can be used, and is especially enough big or work as attaching parts between the stopple when also being flexible piece when hole circle partially flexible.

Like this, in the 3rd class embodiment, hole circle part has just adopted a narrow flexible bridge that it is coupled to each other, and this connector comprises a pair of fillet, and this has connected a stopple fillet with the distal edge of another stopple.This narrow flexible bridge allows the elasticity relative motion between certain hole circle, and also allows the inevitable wing of various holes coil axis to rise.In these embodiments, described hole circle part can adopt a step element to the flexible connection part of connector, and this step element links up this flexible bridge with connector.This step element allows to topple over stopple as a turning joint and breaks away from its waving for the hole circle part of toppling over the beverage use.

In any one embodiment, a draw ring the most directly is connected with the exhaust stopple, this draw ring be pulled up tear this end socket before, surround the exhaust stopple and topple over stopple, this structure can form a big ring, this big ring is easy to hold.

All embodiment all can partially open and jar listen by stopple being torn off hole circle, and in all examples, stopple all can remain on opening after on the circle part of a hole, so that guarantee that can be enclosed in the hole again as the snap-fastener chock plug at any time encloses.

Now various embodiment of the present invention are described with form for example and with reference to accompanying drawing, wherein:

Fig. 1 is a section-drawing by the tin top, has filled with the beverage that is filled with carbonate gas in this tin, and has used end socket according to the present invention to seal this tin;

Fig. 2 A is mounted in the planar view of first embodiment of an end socket on the cover;

Fig. 2 B is by the section drawing that passes through this end socket of indicatrix A-A ' indication among Fig. 2 A;

Fig. 2 C is by an indicated plan cross-sectional view of indicatrix B-B ' among Fig. 2 B;

What Fig. 3 was indicated is a plan view of the open mode of the residing F/s of end socket among Fig. 2;

What Fig. 4 was indicated is a plan view of the open mode of the residing final stage of this end socket;

Fig. 5 A is mounted in the planar view of second embodiment of an end socket on the cover;

Fig. 5 B is by the section drawing that passes through this end socket of indicatrix A-A ' indication among Fig. 5 A;

Fig. 5 C is by an indicated plan cross-sectional view of indicatrix B-B ' among Fig. 5 B;

Fig. 6 A is mounted in the planar view of the 3rd embodiment of an end socket on the cover;

Fig. 6 B is by the section drawing that passes through this end socket of indicatrix A-A ' indication among Fig. 6 A;

Fig. 7 A is mounted in the planar view of the 4th embodiment of an end socket on the cover;

Fig. 7 B is by the section drawing that passes through this end socket of indicatrix A-A ' indication among Fig. 7 A;

Fig. 8 A is mounted in the planar view of the 5th embodiment of an end socket on the cover;

Fig. 8 B is by the section drawing that passes through this end socket of indicatrix A-A ' indication among Fig. 8 A;

Shown a cover 2 osed top can bodies 1 among Fig. 1, it comprises an arch center plate 3, round this center plate 3 be a circle crimping 4, this crimping 4 is connected with double-seam 6 by double wall 5, so just cover 2 and can body 1 has been linked up.

Two apertures are arranged on arch center plate 3, and less one is referred to as exhausr port, and its is near the center of arch center plate 3, and bigger one is referred to as pour spout, it and crimping 4 close together.

The aperture is by end socket 7 osed tops, and end socket is by molded the forming of plastic material such as polypropylene or high density polyethylene (HDPE) (as row number GB6450).

This end socket 7 comprises one first hole circle part 8, and it is embedded in the exhausr port and one second hole circle part 9 with air tight manner, and it is embedded in pour spout with air tight manner equally.Flex link 10 is an exhaust stopple 11(and 8 sealings of exhaust oral pore circle part) with one topple over stopple 12(and topple over 9 sealings of oral pore circle part) link up.The flexibility of connector 10 can allow each hole circle part wing to rise, and if necessary, can also enter aperture separately, constitutes good and mild cooperating with this arch sheet 3.Allow certain plastic elongation during this connector 10 of moulding,, guarantee that fit on is easily enclosed in the hole in the aperture on the center plate so that allow the horizontal relative motion of any necessity between Kong Quan.

For example as described with reference to Fig. 2 below, connector 10 is connected on the exhaust oral pore circle part 8 flexibly, so that when stopple 11,12 from its hole circle 8, when tearing on 9, can guarantee that stopple is connected on the cover 2, the stopple of opening can also be used to sealing again the hole circle.

In Fig. 1, shown, be full of the beverage 14 that is filled with carbonate gas in the can body 1, the interior pressure of result in head space 15 just caused that center plate 3 projectioies cause arch, and any pressure increase in this head space all can cause the expansion of the appearance profile of center plate.Because connector 10 is flexible, therefore any deformation force by generation between the hole circle 8,9 all can be eliminated by bending or elastic strain in the flexible connection device that does not have gas-tight fit between circle of the hole on the affected center plate 3 and the aperture.

With reference to figure 2A, 2B and 2C, end socket 17 is whole to be one, forms by plastic material is molded.It comprises an exhaust oral pore circle part 21, it seal by an exhaust stopple 22 and one topple over oral pore circle part 23, it is sealed by a pour spout stopple 24.A flex link 25(is preferably from Fig. 2 A) connecting two stopples.Flex link 25 comprises top flat 26 and a pair of side members or the fillet 27,28 of exhaust stopple 22, and this passes through from two sides of pour spout stopple 24 respectively fillet, is connecting pour spout stopple 24 a common junction 29.Arc slit 56 makes the fillet 27,28 and the top flat 26 of exhausr port stopple 22 separate, and only links to each other at the side away from pour spout stopple 24.Connector 25 is flexible, and this is that the wing of the axis of like this any hole circle partial sum stopple plays (being leak free between them) all only can make the connector bending because it is a fillet by thin slice and plastic material constitutes.This connector is the horizontal relative motion that can allow between the hole circle part 21,23, and this is because side members or fillet 27,28 have become narrow curve plane form gradually, and if necessary, this structure can allow to extend or compression.Connector 25 further comprises an anter 31 on the pour spout stopple 24, can link to each other with exhaust oral pore circle part 21 flexibly by anter 31.This flexible connection part comprises a step element 32, and this step element extends to camber line cranse 33 from the plane of anter 31, and this camber line cranse 33 partly surrounds hole circle part 21.Cranse 33 joins step element 32 to hole circle part 21, its junction is two dwell points 30 on the circle part opposite side of hole, and this point can be found out in Fig. 2 C well.At Fig. 2 B, among the 2C, people can clearly be seen that hole circle part 21,23 freely wing rises or moves when connector 25 bendings or extension.

A draw ring 34 surrounds stopple 22,24, and it is directly connected on the flex link 25 at a 34A place, mentions like this and when spurring draw ring, has at first torn exhausr port stopple 22 from exhaust oral pore circle part 21, and this point can be found out in Fig. 3.

In Fig. 3, draw ring 34 has been thrown off cover 19, so just can be clear that draw ring 34, has the connector 25 and the exhaust oral pore circle 21 of exhausr port stopple 22.At this first step open position, jar listen ventilative, at this moment the user if desired, he can use a suction pipe to drink beverage in the filling, when he had drunk enough beverages, he also can seal this aperture again.

Refer again to Fig. 3, can notice a very little rectangular dimple 35, it is positioned at the not end of side members 27,26, and side members 27,28 is connecting the anter 31 of pour spout stopple 24 herein.This little indenture 35 is impelling plastic material to give a discount, so that any mechanical rough sledding that the pulling force that transmits by side members 27,28 from draw ring 34 directly near the edge of pour spout stopple 24, has so just avoided the effect of the longer distance of the power of tearing to cause.Arranged the indenture 35A of a similar effect in addition in the place that draw ring 34 links to each other with attaching parts 25.

Fig. 4 has shown the position of opening fully, tears from its hole circle part 21,23 at two stopples 22,24 in this position, at this moment just can topple over beverage from toppling over oral pore circle part 23.This hole circle part 23 has been separated with hole circle part 21 as can be seen.The flexible as can be seen mooring closure member that is connected to exhaust oral pore circle part 21 of people comprises cranse 33, step element 32, anter 31, pour spout stopple 24, flex link 25, exhausr port stopple 22 and draw ring 34.

The mooring closure member can be turned back again, is installed in its hole circle part 21,23 separately and comes again once more aperture in the Feng Mikong circle part by each stopple 22,24 is compressed.

The effect of the rectangular aperture 55 that shows in Fig. 2 A and 2B is for used hanging stick provides path, so that clamp separating plate used when the molded aperture plug portion in molding process.

If people wish, draw ring 34 can show in Fig. 2 A by means of broken side knot 36() make it to keep position before use, this broken side knot 36 serve as that the mode of the broken filament of basis employing constitutes with connector 25.Thread on the other hand knot 37 can show among Fig. 2 B to the extension of the bottom side of draw ring, this point from each hole circle part.Though these thread knots 37 are in use seldom seen, they are easier than side knot 36 in molded.

Fig. 5 A and 5B have shown second embodiment of end socket, and what show among hole circle part 21,23 and stopple part 22,24 and Fig. 2 A, 2B and the 2C in this embodiment is identical.This is according to Fig. 2 A, and flex link 38 directly connects draw ring 34, exhausr port stopple 22 and pour spout stopple 24.Why connector 38 is flexible, and reason is that it is to be made by the thin plastic sheet material, if necessary, also can rely on the extensibility of its cross-sectional plane.This connector is by a pair of fillet 39,40 flexibly with topple over oral pore circle part 23 and link to each other, each fillet extends to point of transition 41 from the anter 31 of stopple 24 through a side of exhausr port stopple 22, and then turn back to connect through exhaust oral pore circle part 21 and topple over oral pore circle part 23, this point can be found out in Fig. 5 C.

Mention and draw back draw ring 34, at first torn exhausr port stopple 22, and then torn pour spout stopple 24 from its hole circle part 23 from its hole circle part 21.Fillet 39,40 is evened up at its point of transition 41 places then, stays two hole circles that broken away from pour spout stopple and exhausr port stopple.

Fig. 6 A and 6B have shown the 3rd embodiment of this end socket, and in this embodiment, hole circle part 21,23 is identical with situation about having narrated with stopple 22,24.In this embodiment, draw ring 34 links to each other with flex link 25.As shown in Figure 2 the same, this flex link has side members or fillet 27,28, and they link to each other with the anter 31 of pour spout stopple 24.Yet in Fig. 6 B, the flexible connection part of connector 25 comprises an extension or step element, and this step element hangs the end at anter 31 from above, and links to each other with a narrow bridge 43.This narrow bridge 43 is exhaust oral pore circle part 21 and topple over oral pore circle part 23 and link up.For being to realize with enough narrow bridges 43 on narrow plane by making an enough thin cross-sectional plane in order to allow the hole necessary flexibility of coil axis wing, so just can regulate flex link 25 side members 27,28 extension or shunk.

Be similar at the embodiment shown in Fig. 6 A and the 6B at the 4th embodiment shown in Fig. 7 A and the 7B, but the ductility of flex link has but increased, this is because each side members 27A, 28A has made the fillet of curve shape, and therefore both having made is that very little power also can make its extension or contraction.The similar functions parts of the embodiment that had described are represented by identical reference number.

Fig. 8 A and Fig. 8 B have shown the embodiment of the another one improved form of Fig. 6 A and Fig. 6 B.In Fig. 8 A and Fig. 8 B, draw ring no longer surrounds this end socket, but comprises a pair of first segment of curve 47,48, and each bar segment of curve all extends to each limit of common junction, and this common junction links to each other with top flat with exhausr port stopple 22.Each bar first segment of curve 47,48 is all connecting a straight line side member 44,45, the justified margin of this straight line side member 44,45 and side members 28,27, the top of this straight line side member links to each other with one second segment of curve 46, so that constitute an enough big draw ring, is convenient to people and holds.

In this end socket, resemble by side members 27,28 and straight line side member 44,45 and determined parallel edges, for the operation in the machine for automatic working tool provides suitable surface.Should be noted in the discussion above that among the embodiment of all narrations all has a pair of parallel edges for this purpose, both made the present invention not restriction to adopt this structure.Preferably adopt highdensity polypropylene or vinyon material though make this end socket, other plastic material also can adopt.

In all the foregoing descriptions, hole circle part 21,23 relative to each other the purpose of the alerting ability that rises of wing be to make them can adapt to the shape that arches upward that resembles the cover shown in Fig. 1, doing does not like this influence airtight the inlaying on center plate 3 between hole circle and their apertures separately.

Claims (9)

1, a kind of end socket that is used on an end of container, having the container of a pour spout and an exhausr port, above-mentioned end socket is touched by plastic material and is made for one, and comprise separately be used for be embedded in annular aperture circle part in the above-mentioned aperture in the air tight mode, and stopple separately, each stopple all is connected on the aperture of its annular aperture circle part with a broken cross section of being made by plastic material, be used for sealing aperture separately, formed each stopple all makes and disconnects broken cross section, open after the aperture, stopple can be forced to be got back in the circle of hole, seal the aperture once more, these two stopples are coupled to each other by a connector, this connector is connecting in the circle of hole flexibly, it is linked to each other with stopple after opening the aperture, it is characterized in that structure that the connection part branch between other parts of each hole circle partial sum end socket adopts has guaranteed that hole circle part is at the alerting ability of wing time-out each other.

2, a kind of end socket according to claim 1 is characterized in that the coupling part between other parts of each hole circle partial sum end socket only is made up of the flexible connection part of this connector the broken accessory and the described hole circle part of stopple.

3, a kind of end socket according to claim 2 is characterized in that described flexible connection part is made up of a flexible clip and a step element, and this flexibility clip is connected on the circle of a described hole, and described step element is connected to flexible clip on the connector.

4, a kind of end socket according to claim 2 or 3 is characterized in that this connector comprises a pair of fillet, and this is linked together the distal edge of two stopples to fillet, has so just allowed the relative wing of two stopples to play motion.

5, a kind of end socket according to claim 1 or 2, it is characterized in that described flexible connection part is made up of a pair of fillet, each fillet begins to extend from the connector adjacent with the pour spout stopple, one side through the exhausr port stopple, turn then, and then turn back again, through one side of exhaust oral pore circle part, receive again and topple over oral pore circle part.

6, a kind of end socket according to claim 1 is characterized in that hole circle part adopts a narrow flexible bridge that it is coupled to each other, and this connector comprises a pair of fillet, and this has connected a stopple fillet with the distal edge of another stopple.

7, a kind of end socket according to claim 6 is characterized in that described hole circle part can adopt a step element to the flexible connection part of connector, and this step element links up this flexible bridge with connector.

8, the end socket of any one in the claim above a kind of basis is characterized in that a draw ring directly links to each other with the pour spout stopple.

9, a kind of end socket according to Claim 8, before it is characterized in that at the pull-up draw ring, tearing end socket, this draw ring surrounds exhausr port stopple and pour spout stopple.

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