CN1210497A

CN1210497A - Improved coffee creamer and other cups and tubs

Info

Publication number: CN1210497A
Application number: CN97192015A
Authority: CN
Inventors: 山福德·雷德蒙德
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-02
Filing date: 1997-01-31
Publication date: 1999-03-10
Anticipated expiration: 2017-01-31
Also published as: BR9707323A; IL125543A0; SK103098A3; AP846A; CN1071246C; AP9801308A0; WO1997028054A1; AU2250597A; IL125543A; JP2002502341A; PL328014A1; AU726529B2; HK1019431A1; MX9806204A; KR19990087041A

Abstract

A container thermoformed from a relatively thin flat plastic film comprising an upright standing hollow containment formation (100) having an upper flat rim (102) to which a thin cover member (103) is sealingly attached in a sealing pattern. The sealing rim encompassing the containment formation with at least a portion of the sealing rim extending outwardly from the hollow containment formation an amount adequate to permit it to function as a tab (104). The extending tab portion (104) has a fault line (101) on its underside traversing the tab at a right angle to a centerline extending outwardly from the hollow containment formation which when the tab portion (104) is upwardly bent causes the tab to rupture at the fault line (101). The rupturing causes the outer tab portion to break away from the remaining tab portion while remaining sealed to the thin cover member which is also upwardly bent to create an outlet passage for flowable material between the remaining tab portion and the thin cover.

Description

Improved coffee creamer and other cup and tub

The U.S. Provisional Application No.60/011 that the application's requirement is submitted on February 2nd, 1996 with the applicant's name, 043, and on January 3rd, 1997 is application, the relevant rights and interests that are entitled as " improved coffee creamer and other cup and tub " that sequence number is undetermined, U.S. Provisional Application, and the content of above-mentioned two applications is quoted at this with for referencial use.

Invention field

The present invention relates to multiple that be convenient to open, self-contained, be convenient to adopt packing by using the quantitative packaging device in unit, their can be both economical, produce at high speed, and can with wide range, to have much be that the various materials that can recycle are made.They for example can be used for holding syrup, cream, cheese, salad dressing, shampoo, hand lotion, liquid detergent, oil, toothpaste, slurry, pet food, ant acid, medicine, gum forming compounds and much other food, non-food stuff, medicine and industrial product.The invention still further relates to a kind of packing material that distributes for example collutory, cough syrup, medical massecuite, alcoholic drinks etc. directly to enter the content goods in user oral cavity.

Invention field

Liquid coffee is most popular in the world a kind of packing material with the milk handleless cup, singly is that every year will be used up 15,000,000,000 by the U.S..For realize its purpose may be one of the design of numerous worst and design be, a little flexible thin-walled plastic tank, it is normally made by high high impact polystyrene (HIPS), and has a strippable lid.Its objective is, hold cream safely till using, in use, can be opened easily by the user, and cream is sent into coffee, finally put down safely.During use, the user must have certain manual proficiency, but some user is aging, weak, arthritic etc., perhaps the minor matter of this part trouble is paid little attention to.Finally cream must be injected coffee to be drunk, put down then, this is very difficult in the vehicle, train or the aircraft that move.Clearly, no matter be true cream or the white makeshift that some is artificial, always the relatively low viscosity of goods of institute's splendid attire.Need open with two hands and have a flexible tub peel-off covers, very little.

When carrying out this operation, need hold tub firmly by extruding, will cause low-viscosity cream product to overflow absent-mindedly like this or pass in and out, splash on one's body the user.Suppose that this strip operation successfully realizes, then cream must be injected coffee, put down again subsequently.These very little tubs often have less base portion, and always contain unspent cream.They are easy to be knocked over, can splash goods on the desk so again, on the pallet or on one's body the user.

Another shortcoming of the tub that this class is little is that expensive peel-off covers is normally made by a kind of combination of paper tinsel-plastics.Situation about peel off fully is seldom.If becoming, need reclaim on these lids that can not reclaim again, so just must be with manually they being peeled off from each milk handleless cup.

As mentioned above, when lid is peeled off little tub, must catch lid firmly.Owing to will catch lid firmly, so tub, particularly its edge must have certain structure globality and intensity.This is by realizing with high high impact polystyrene (HIPS) material of thickness in 20-27.5 mil scope.Lid also must have certain peel strength.Under many circumstances, employing is a kind of lit-par-lit structure that is made of paper tinsel/polyester/releasable adhesive.The cost of this thin and little combination often will account for 1/3rd to 1/2nd of packing material total cost.

In this field a large amount of,, there are 5 factors can have influence on the success or not of each packing material by the high competition that uses unit package.These factors are: 1. cost; 2. ease of use; 3. prevent the unexpected ability of opening or overflowing; 4. outward appearance; 5. to the influence of environment.

As previously mentioned, the modal form of this unit package thing is a coffee creamer.This little barrel-shaped packing material has the peel-off covers of lug operation, and huge sales volume (singly will sell 150 to 20,000,000,000 every year in the U.S.) is arranged, it is comparatively expensive, is difficult to use, what easily meet accident overflows, and environment is had negative influence and neutral outward appearance.Therefore, can not satisfy four in above-described five success factors, but its unique appreciiable product that is the street.

One object of the present invention is, overcomes these class-one defecies, makes packing material become cheap, easy to use, resists the environmental concerns that overflows and have improvement.Though it is neutral that its outward appearance still keeps, the user still can be very satisfied to it, because it is easy to use, and has anti-ability of overflowing.

Lid is peeled off very large power of needs, in order to resist such power, usually heat deformable plastics (HIPS) film raw material of 21 mils need be used as lower depression element, its edge particularly, and a tough and tensile plastics-paper tinsel need be added the strong but releasable adhesive of last layer as peel-off covers.Need not go into the details, when lid is stripped from, or goods be will flow out cup the time, and the structure of container of plastics also must have anti-extrusion ability.

Suppose worldwide to sell every year 50000000000 milk handleless cups, can imagine, replace existing equipment and need do how big investment.Price price $2,000,000 Germany makes Robert Bosch sterile milk handleless cup system machine and per hour produces 80,000 unit package things.Sterile milk handleless cup system machine a lot of places in the world all receive an acclaim, even also are used widely in the U.S., though domestic refrigeration system and the refrigeration transport capacity of the U.S. will be better than U.S. country in addition greatly.Replace these existing machines and may be unusual difficulty with expensive, thereby can be resisted, because the cost of machine is one of factor of milk handleless cup price.

Goal of the invention

In view of the field in the packing of using quantitative packaging device exists above-mentioned problem and defective, thereby the present invention is intended to realize following purpose:

Replace those unworkable peel-off covers type coffee creamers and other structure with being easy to open, have packing of the quantitative packaging device of use anti-overflow capability, similar by the keg container of using the unit packing;

Only need existing equipment is done transformation simple, relatively low cost, just can make the packing material of the quantitative packaging device of this use;

Producing only needs a lug is made progress bending simply and produces an outlet, the unit package thing that can be opened;

Produce the unit package thing that when being squeezed, can controllably distribute goods;

Reduce the quantity of plastics of each unit package thing;

Produce the unit package thing that can reclaim fully;

Eliminate expensive peel-off covers, replaced with the monolayer plastic that cost is very low;

Such unit package thing can be opened reliably, make good by tough and tensile non frangible material even work as it;

Only produce and to apply finger pressure simply, can distribute the unit package thing of goods;

Produce and to have the unit package thing that distributes described goods in the band of protuberance one;

Eliminate expendable waste material;

By reducing the thickness of base portion film, reduce the cost per unit of packing material; And

Produce and can be used as the unit package thing that a peel-off covers type cup or is easily opened outlet.

Brief summary of the invention

The application finds unexpectedly, promptly utilize the whole bag of tricks and the structure (US Patent 5 that comprises the applicant, 395,031,4,493,574,4,611, the various modification that 715 grades are disclosed) generate the device of outlet, can be incorporated on the aforesaid widely used keg shape milk handleless cup, thereby obtain very big benefit.Go out the interruption-forming device and normally be described as a kind of device that the form with the ledge portion of the upper edge of keg realizes, it can produce one and extend to the exit passageway in the outside from keg, and has a line of rupture that passes across its upside.If will open the exit passageway that this leads to the outside, only need simply lug to be made progress folding, line of rupture is broken can form outlet.Can see, by in packing material, generating an exit passageway that can distribute goods by extruding lightly, can eliminate expensive paper tinsel/plastics/adhesive type peel-off covers, and can by by the same material of making keg for example the seal cover cap of 1 or 2 mils made of HIPS replace.Can heat this lid subsequently, it is sealed directly on the keg, so just not need adhesives or sealant layer.

Because lid is not peeled off, and bears this peeling off so need not structural strength.Particularly importantly, by designing meticulously, having reduced the thickness specification of thermal deformation film, is comparatively favourable like this, because cancelling the peeling off after the function of lid, the requirement of strength at edge is reduced greatly, so can adopt the HIPS of 6 to 10 mil thick.

Another advantage is, milk handleless cup of the present invention can do simply by a kind of sterilization that is used for production standard milk handleless cup that adopted now or the equipment of not sterilizing, cheap relatively interpolation and/or modification and the most widely used standard milk handleless cup packing material now changed simply and can make.This is a very important advantage.

The notion of Yin Ruing can present keg shape milk cup each defective that exists of comparatively ideal solution herein.Adopt the film raw material of thin specification, add and cancelled paper tinsel/plastics/adhesive type lid, thereby reduced by 50% to major general's cost, and can with the consumption of plastic material greatly (50%) reduce, and eliminated lid rubbish or waste material.Overflow unexpectedly or advance to penetrate in fact also and be eliminated.

What can also see further is, the design of this keg shape milk handleless cup can bring the reason of big advantages to be, adds the outlet generating apparatus and also can put on or be committed at the splendid attire thing one jiao and have the cup of peeling off rectangle lug, common or little tub.A kind of special little tub, it has the sealing lip edge of a relative narrower, the goods cave structure of this edge area-encasing rectangle, an angle of this structure is low flat, thereby has produced a concavo-convex triangle lug on this angle.In described edge extension, above-mentioned outlet generating apparatus can have various variation.

Brief description of drawings

Fig. 1 is a lateral plan of the container of one embodiment of the invention;

Fig. 1 a is the birds-eye view of container shown in Figure 1;

Fig. 1 b is the lateral plan of container shown in Figure 1, and it shows a line of rupture;

Fig. 1 c is the amplification outline line of the line of rupture of container shown in Figure 1;

Fig. 1 d is the cutaway view along Fig. 1 a center line A-A intercepting;

Fig. 1 e is the amplification view along the line of rupture intercepting of container shown in Figure 1;

Fig. 2 is the strabismus stereogram of the container of another embodiment of the present invention;

Fig. 2 a is the lateral plan of container shown in Figure 2;

Fig. 2 b is the amplification view along Fig. 2 center line 2b-2b intercepting;

Fig. 2 c is the amplification plan view of container shown in Figure 2;

Fig. 2 d is that it shows a line of rupture along the amplification view of Fig. 2 center line 2b-2b intercepting;

Fig. 3 a and Fig. 3 b show the birds-eye view and the lateral plan of the container of another embodiment of the present invention respectively;

Fig. 4 a, Fig. 4 b and Fig. 4 c are respectively that a lateral plan, amplifies a cutaway top view and an amplification view, and they show: a hole that is produced when fracture takes place the line of rupture of container shown in Fig. 4 a and Fig. 4 b;

Fig. 5 a, Fig. 5 b and Fig. 5 c are respectively that a lateral plan one amplifies cutaway top view, and an amplification view that shows a hole that is produced when fracture takes place the line of rupture of Fig. 5 a and Fig. 5 b;

Fig. 6 a, Fig. 6 b and Fig. 6 c are respectively that a lateral plan one amplifies cutaway top view, and an amplification view that shows a hole that is produced when fracture takes place the line of rupture of Fig. 6 a and Fig. 6 b;

Fig. 7 a, Fig. 7 b and Fig. 7 c are respectively that a lateral plan one amplifies cutaway top view, and an amplification view that shows a hole that is produced when fracture takes place the line of rupture of Fig. 7 a and Fig. 7 b;

Fig. 8 a, Fig. 8 b and Fig. 8 c are respectively that a lateral plan one amplifies cutaway top view, and an amplification view that shows a hole that is produced when fracture takes place the line of rupture of Fig. 8 a and Fig. 8 b;

Fig. 9 a, Fig. 9 b and Fig. 9 c are respectively that a lateral plan one amplifies cutaway top view, and an amplification view that shows a hole that is produced when fracture takes place the line of rupture of Fig. 9 a and Fig. 9 b;

Figure 10 a, Figure 10 b and Figure 10 c are respectively that a lateral plan one amplifies cutaway top view, and an amplification view that shows a hole that is produced when fracture takes place the line of rupture of Figure 10 a and Figure 10 b;

Figure 11 a, Figure 11 b and Figure 11 c are respectively that a lateral plan one amplifies cutaway top view, and an amplification view that shows a hole that is produced when fracture takes place the line of rupture of Figure 11 a and Figure 11 b;

Figure 12 a, Figure 12 b and Figure 12 c are respectively that a lateral plan one amplifies cutaway top view, and an amplification view that shows a hole that is produced when fracture takes place the line of rupture of Figure 12 a and Figure 12 b;

Figure 13 is the container of another embodiment of the present invention.View from the below stravismus;

Figure 14 a-Figure 14 f is the various cross sectional drawings of protrusions of the present invention;

Figure 15 a is the birds-eye view of the container of another embodiment of the present invention;

Figure 15 b is the lateral plan of container shown in Figure 15 a;

Figure 15 c is the lateral plan of container shown in Figure 15 a and Figure 15 b, and it shows the described container that is in running condition;

Figure 16 a one is used for forming the lateral plan of the Yangcheng shape punch of container shown in Figure 15 a-Figure 15 c;

Figure 16 b one is used for and the lateral plan that is used for forming the cooperative yin shaping up body mould of positive shaping die of container shown in Figure 15 a-Figure 15 c shown in Figure 16 a;

Figure 17 be one be used for being installed on the curved surface, independent curved slot forms the strabismus stereogram of device;

Figure 18 is a side isometric view independent, half pyramid, that be similar to beak shaped stress concentrator;

Figure 19 is the lateral plan of another embodiment of the present invention, and it shows a non-rigid or soft receiving member.

The specific descriptions of preferred embodiment

Now see also Fig. 1, it is the lateral plan of first embodiment of the invention, it show one become substantially truncated cone shape, barrel-shaped minute adapted container 100, described container has a contained structure, (HIPS) makes by a brittle plastic, and coffee cup or other low viscous product are housed in it.Described container 100 has a flat limit 102 around described contained structure, and the part on described flat limit stretches out to form a lug 104 from described contained structure.On the bottom surface of described lug, also show a line of rupture 101.Be sealed in described flat limit and lug 104 end face be one to be similar to the plastic sheeting 103 of lid.

Now see also Fig. 1 a, it is the birds-eye view of container 100, it shows the unsealing district 106 of a ligulate, and described unsealing district is shown by the shade line between described lid 103 and described flat limit 102 and the lug 104, and unsealing district 106 is through also exceeding the line of rupture that crosses described lug bottom surface slightly.It also shows one and passes described line of rupture, the section A-A shown in Fig. 1 D, and it shows and is positioned at two unsealing districts, center 106 between the seal area that is illustrated by little x '.

Figure 1B shows the lateral plan of described minute adapted container, and described lug 109 bending backward can make described line of rupture fracture, thereby can allocated product.

Fig. 1 C shows the structure of described line of rupture, and it all has a straight part 107 at each end, and has the arch section 108 of a bending between described two straight parts 107.Fig. 1 E is the crooked backward outlet figure that is produced of lug 104, and it shows the camber line 109 that is produced with arch section 108 fractures that make line of rupture 101.

In the present invention, owing to need not lid is peeled off, therefore this packing only needs minimum rigidity, therefore can save cost more than 50%.Described product receiving member or tub can be made by film, and the thickness order of magnitude of described film can be 10 mils, and described lid can be one not need individual layer HIPS extra play, 1 to 2 mil.In some cases, in the printing process, a Saran (PvDc) outer covering layer may be needed and apply, therefore the cost of lid will be slightly increased.

In this application, the packing of being made by the brittle plastic such as HIPS does not need the stress concentration projection, so that the line of rupture fracture, therefore, even they may projection on the line of rupture side of lug extension, will use term, groove and micro groove are described these structures.Should be understood that, that also a slightly dark groove can be made and has a projection of coming out from the bottom surface projection of described lug, still, if the low viscosity liquid and the described liquid of dress are tumbled because of carelessness, described groove may leak.

Fig. 2 shows the embodiment that the present invention adopts rectangular shape, and it has a kind of rectangular configuration, and has an azimuth 201.Fig. 2 A-Fig. 2 C shows the edge 202 that is positioned at azimuth 201 tops, described edge is continuous, surpass described azimuth to form a lug, be formed with the line of rupture 209 that half pyramid, stress concentrator projection 208, barrel-shaped, hollow be parallel to azimuth 201 in the described edge and cross described lug and projection.Described projection intersects with the narrow wall that is formed by azimuth 201.Rectangular hollow product receiving member 203 with azimuth 201 has an edge 202 that is sealed in lid 204.

Fig. 2 D shows and is in the stress concentrator projection of case of bending backward, and it has the line of rupture 209 products export 210, that ruptured of formation.

In Fig. 3 A and Fig. 3 B, show the exemplary container of another embodiment of the present invention.This container comprises a receiving member 300, and it has edge 320 and the lug 350 that extends out from it, and at least one formation enters the channel shaped projection 310 in the edge 320.One plastic sheeting that is similar to lid 330 is sealed in the end face at edge 320, seals up described container thus.The projection 310 of channel shaped is formed in the wall of receiving member 300, and the crooked end face that stretches into lug 350.One line of rupture 340 crosses described projection 310.

Fig. 4 A and Fig. 4 B show one embodiment of the invention, and it has adopted at least one formation to enter the interior curved grooves shape projection 410 of wall of receiving member 400, and described projection extends upward and lug 450 is stretched in bending.Shown in Fig. 4 B, a straight substantially line of rupture 440 crosses protrusion 410.When lug 450 was crooked backward, line of rupture 440 fractures produced a hole 460 thus.Shown in Fig. 4 C, hole 460 is particularly suitable for high viscosity product and/or particle, such as salad dressing, ointment, sour cream and sour milk.A kind of like this structure can with barrier layere and the high strength material such as NY-PET-EVOH-PVE-PP, and the various co-extrusion pressure things of these materials, and HIPS works together.

In another kind of version, the one barrel-shaped projection of half pyramid with a cusp configuration cross-sectional plane that is passed across by a line of rupture can be used with various materials, these materials can change to by respectively stopping the most tough and tensile film formed co-extrusion pressure thing from HIPS.It structurally has half and U.S. Patent No. 4,493,574 stress concentrators required for protection similar, and it can distribute and almost comprise all range of viscosities, very large-scale product.

Fig. 5 a shows a container of this embodiment of the invention, and it has a receiving member 500, and this receiving member has the barrel-shaped projection of half pyramid 510.Shown in Fig. 5 B, projection 510 extends into a lug 550, and is crossed by a line of rupture 540.When work, lug is crooked backward, make line of rupture 540 fractures thus.Shown in Fig. 5 C, the fracture of line of rupture 540 will produce a hole 560, and this hole is particularly suitable for distributing the high-viscosity products that does not contain particle, such as sunblock lotion, syrup and other analogue.Pointed out as preamble, can use high strength and the barrier material such as NY-PET-PVC-EVOH to make a kind of like this structure.

In another version, can adopt one to have a micro groove that passes across the line of rupture of its track.Described micro groove may be defined as: the groove in lug extension end face, its degree of depth is less than the thickness of described lug extension plastic material.For example, the lug extension after one 8 mils (.008 ") can have the groove that a degree of depth is no more than the .008 mil degree of depth, and in fact, the degree of depth of .005 mil is comparatively ideal.These small micro grooves are to be used for such as the mobile effective groove of low viscous products such as coffee cup, alcohol, water, solvent, and it is necessary or preferable at these grooves mobility status being controlled.

These little grooves also form leakproof and the outlet of the anti-sound of rain pattering.In the packaging process that this is carried out, the finger pressure that is applied changes slightly and just can flow rate regulate.As can be known be, if a micro groove or darker groove are formed in people's one lug and with the line of rupture intersection of locus before stop, and a unsealing district extends one section than short range from the end of described these grooves, thereby before being sealed, pass across line of rupture by perimeter seal around whole packing, so, up to smooth, unencapsulated outlet device, can obtain a kind of mobile freely, it provides a valve feature for described outlet, as will be described below, that has in the outlet device of valve function at first.

Should also be noted in that in some cases, micro groove can be manufactured in the upper surface of lug extension, and on its bottom surface without any projection.Also should give recognize be, on the lug extension of one 10 mil thick, form the dark groove of one 10 mils (.010 ") if desired, so obvious, a projection will have to appear on its bottom surface.But it will not have the effect of stress concentrator.

Fig. 6 a shows one embodiment of the invention, and it is formed with a relatively thin micro groove projection 610 in a receiving member 600.In micro groove projection 610, it is crossed by a line of rupture 640.Micro groove projection 610 stretches into a lug 650, when lug bends backward, line of rupture 640 is ruptured, and forms a hole 660 thus.Shown in Fig. 6 C, hole 660 is particularly suitable for low-viscosity product, such as the milk handleless cup of the usefulness of drinking coffee.Should be understood that, to have the layering HIPS of a layering line of rupture 640 to make a kind of like this structure with HIPS and its inscribe, therefore when lug 650 is bent backward, only requires that this HIP ruptures,

In one embodiment of this invention, people are surprised to find that for the product such as coffee cup, the outlet generating apparatus that will be described itself will play the effect of valve, it can only and be closed subsequently in allocated product under the pressure, to prevent the slightest spill and leakage or the sound of rain pattering.

A kind of common, barrel-shaped, coffee adopts a kind of subtriangular structure with the flat edge extension or the lug of milk handleless cup, and crossed by a line of rupture, perhaps on its bottom surface, be parallel to one and cut with the tangent line of described circular milk handleless cup body, and its entire upper surface is sealed in a lid.But, as with whole upper lug face seal in the alternative of described lid, can make the ligulate zone on described lug surface still keep unsealing, and in its perimeter seal scope, stretch out from staving, and cross and carry (carry) exceed the track of line of rupture slightly.

Some brittle plastic is arranged, even they are flat, but when they are bent, they will rupture along a simple line of rupture.HIPS is exactly a kind of hard brittle material that generally is used in the coffee usefulness milk handleless cup.

In this embodiment, must use a kind of like this plastics.As will being recognized, when lug is upwards bent, this plastics rupture, and outside the end in the unsealing ligulate district between lid and staving edge will be exposed to, and the surface in the unsealing ligulate district between lid and lug keeps contact each other.

As can be known be, even a kind of low viscous product that is similar to cream and so on can the sound of rain pattering yet or is come out from spill and leakage wherein.But, when suitably big or small pressure being put on described device and the edge extension is pointed to downwards with finger, the lid plastics, in fact also have the edge extension all to incite somebody to action towards each other mutually remotely direction and do movement in a curve slightly, thereby produce an egress hole flat, football, the effect of an effective nozzle is played in this hole, the sticking stream and can distribute by this hole of product.

People also are surprised to find that, when metering film (approximately .1-2 mil) that will be as thin as a wafer was used for the lid of of the present invention minute adapted packing material, after sealing, it just can not keep smooth, and can in the gamut of described vessel port, tighten, resemble a drum head (drum skin).It has a flexible scope, and when with finger minimum pressure being put on the leak free container, this just makes it can be a kind of shape than front curve or arching.As can be known be, if unsealing ligulate district by container seal institute around, so, identical internal pressure will make the lid stock of top, unsealing ligulate district expand and arch upward slightly.This exactly " donation " in the gauge material as thin as a wafer of " like sealing " structure makes and hangs down that viscous product can pass the outlet in unsealing district, the track of following the line of rupture that has ruptured carries out effectively mobile.Also as can be known be, if be disengaged with the external pressure that applied of finger, two are wet surperficial, promptly the wet upper surface of the wet bottom surface of lid surface and lug extension will fit together under capillarity and will keep together, and closes outlet to prevent the sound of rain pattering.

When using a straight line of rupture and unsealing district, it will produce one and export and passage, hold low viscous product when with box lunch lug being bent backward.But, if the hole at line of rupture place is in irregular shape, perhaps not an entire fracture, so, it can form the obstruction of part to the product stream that is being assigned with.If the lug extension is too hard, just produced straight line outlet by the end of ledge portion under breaking and remaining ledge portion, this outlet will be launched into an egress hole smooth, football.Although it is so can be in allocated product under the suitable pressure, still, required pressure can change, and therefore the product stream between a packing material and another packing material can be changed.After this, it is found that the line of rupture of a bending can be eliminated this difficulty.When bending behind the described bend fracture alignment that its convex surface is pointed to away from the container direction, described line of rupture will rupture along its curve, we find, the lug of dialysis is a spill at its base portion, thereby above outlet, form a camber line, thereby can eliminate the compression of double-canopy stroma (stock) in the exit.

In another unexpected discovery, it is found that, one line with two sections straight ends also can serve the same role, between straight end, described two ends, an arcuate part is arranged, its convex surface stretches out from described container, described arcuate part has a chord length, and the width in the unsealing ligulate district that this chord length and it pass across is approximately equal.

The discovery of curvilinear figure or the curved line of rupture of part significantly helps dividing at object the formation of adapted packing material inner outlet; and do not need to form projection or micro groove or other stress concentration structure required for protection and export structure in other version described herein; on the contrary, a needs one passes across the unsealing district of line of rupture track.

In these various, curved line of ruptures, it is found that, in case disconnect, the lug end of dialysis has the base portion of an arch, and the outlet of replacement straight line is that we can obtain the opening of an arch between lid and lug, this be because, residue ledge portion as the outlet downside keeps smooth, and when with lug upwards during approximate 90 ° of bending, the ledge portion of dialysis have one across outlet end, level and smooth, the flat arcuate shape almost of outer gland sealing.And, because very little lug sheet is adhered to the lid seat, will be tending towards it is raised and leaves the residue edge of formation outlet downside like this.Below, will these embodiment of the present invention more specifically be described in conjunction with Fig. 7-Figure 12.

In Fig. 7 A-Fig. 7 C, show another embodiment of the present invention, it has a receiving member 700 and the micro groove projection 710 that is formed on lug 750 bottom surfaces.As can seeing from Fig. 7 A, micro groove projection 710 is not crossed by a line of rupture.On the contrary, a line of rupture 740 passes across a unencapsulated ligulate district 712.As aforesaid those embodiment, with lug 750 backward bending can make line of rupture 740 fracture.Therefore, a unsealing district 760 just comes out, and like this, applies once very little pressure on receiving member 700 and the contents in the receiving member can be emitted.Should be understood that, that this structure provides one to be similar to the effect of valve, and can prevent to leak.This structure can have the layering HIPS of layering line of rupture 640 to make with HIPS and its inscribe, therefore has only HIPS just to be required to rupture,

Fig. 8 A-Fig. 8 C shows another embodiment of the present invention, and it and the described embodiment of Fig. 4-Fig. 7 are similar, are that embodiment shown in Figure 8 does not have a groove or protrusion.On the contrary, embodiment shown in Figure 8 is provided with a unsealing ligulate district 812 that stretches into a lug 850.One line of rupture 840 passes across described unsealing ligulate district 812.When line of rupture 840 fractures, edge sealing member still retaining ring is put the unsealing district on the spot.In case pressure is put on receiving member 800, just can produce just like the unsealing exit opening 860 shown in Fig. 8 C.As aforesaid those embodiment, this structure also can be made with the HIPS of HIPS and layering.

In the another kind of version of outlet generating apparatus, in lug, do not make any structure, still, it will still have a line of rupture that passes across its bottom surface.In this case, though it is sealed around its periphery, but will in lid, make a hollow structure that separates with lug, be used for the gap of distributing fluids to serve as, it can be narrow or not be narrow, as long as its part passes across the line of rupture track and extends back just passablely above the product receiving member, so that a groove is provided, it leads to a formed outlet when lug is upwards bent.

Fig. 9 A-Fig. 9 C shows another kind of version, and it has a receiving member 900, but without any projection.As shown in the figure, present embodiment comprises that one is positioned at the male structure 914 of lid.This male structure begins to extend and stretch into a lug 950 from receiving member 900 tops.Shown in Fig. 9 A and Fig. 9 B, line of rupture 940 passes across the lug 950 below male structure 914.Shown in Fig. 9 C, the fracture of line of rupture 940 can make male structure 914 play one to lead to a groove that is formed on the opening 960 of line of rupture 940 from receiving member 900.The shape that should be understood that, line of rupture 940 can be more straight, curve or this both combination relatively.

Figure 10 A-Figure 10 C show one with the similar embodiment of Fig. 8 A-Fig. 8 C, it has a unsealing ligulate district 1012 that stretches into a lug 1015.But, be different from Fig. 8 A-Fig. 8 C embodiment, unsealing ligulate district 1012 is crossed by a curved line of rupture 1040, this line of rupture comprises two straight ends, and one from receiving member 1000 bandy cores.

Figure 11 A-Figure 11 C shows the identical situation that is provided with Figure 10 A-Figure 10 C, just for clarity, has removed the dash area in unsealing ligulate district 1012.

Figure 12 A-Figure 12 C shows another embodiment of the present invention, and wherein, line of rupture 1240 is all crooked.As from Figure 12 B clear see like that, all the line of ruptures 1240 of bendings pass across a unencapsulated ligulate district 1212.

Should be understood that, in order to obtain favourable result, can with various other projection, sealing means and by line of rupture described herein, especially those of Fig. 4-shown in Figure 12 combine.

As long as with lug bending system's a lot of version outside those embodiment as described above in addition that just can in packing material, form outlet device upwards.Generally speaking, these methods all require structure, groove or the projection of a hollow, and they are formed in the lug, extend from the lug bottom surface and intersect with the wall of product holding portion that passed across by line of rupture, hollow.These projections can adopt various structures, and tough and tensile barrier layere that thermoplastic plastic makes is arranged and/or be layering or during its composite of co-extrusion thing form when adopting, and/or when being used for handling viscous product or containing the product of particle, it is particularly advantageous that some projections are arranged, and can extend at the edge of a hot formed Bistributor package thing to form multiple stress concentration structure in the lug.

Applicant's US Patent 5,395,031 has described a kind of form with raised structures similar cross-sectional plane, single or multiple channel shaped, in fact, it changes, and what it was taked the process of an extendible portion that carries out the transition to the described structure of extending along packing material goods accommodation section wall from the lug bottom surface downwards is a kind of curve shape.So just produced a kind of structure in its fracture energy scope, strong especially, it can make sturdy material and its laminate or the fracture of co-extrusion thing of thin specification.This form of outlet generating apparatus is particularly suitable for various soft cheeses, paste and/or contains the product of particle, and has a kind of like this ability, that is, and and can be with in a plurality of grooves of product dispensation in an attractive mole track.What can see is, is that the projection of these a plurality of channel shaped can be formed in the lug in the situation of rule at packing material, and described lug begins to extend from a complete end and an azimuth of described packing material.Below in conjunction with Figure 13-Figure 16 these embodiment are more specifically described.

Figure 13 shows shape block diagram packing material, that look side ways from the below of rule substantially, described packing material has an azimuth 1400, at this azimuth place, the hole shape apparatus for converting 1440 of groove more than forms in people's one azimuth 1400, and the width of hole shape apparatus for converting 1440 is big as to make azimuth 1400 become the end of hollow product container piece 1405.There is shown the curvilinear figure hole shape apparatus for converting 1440 of many grooves or many grooves, it has the cross-sectional plane shown in Figure 14 C, and have pinnacle 1443 and pointed groove 1442A, and has a line of rupture that passes across the arc-shaped transition part of hole shape apparatus for converting 1440, when line of rupture ruptures, additional, a bigger outlet will be produced.Described hole shape apparatus for converting 1440 is formed in the edge 1415 to produce an extended bight lug 1430.

Figure 14 A to Figure 14 F shows the various variation of hole shape apparatus for converting 1440 shown in Figure 13.More particularly, Figure 14 A to Figure 14 F shows along line of rupture various cross-sectional planes intercepting, hole shape apparatus for converting 1440.Shown in Figure 14 A, hole shape apparatus for converting 1440 has a plurality of channel shaped projections 1441, and they can have the bottom 1442 through rounding, to prevent that described projection 1441 from being broken accidentally.Hole shape apparatus for converting projection 1441 can have sharp-pointed summit or the peak 1443 shown in Figure 14 A, perhaps arc apex 1443A as shown in Figure 14B.Perhaps, summit 1443 and bottom 1442A can be sharp-pointed, shown in Figure 14 C like that.

Shown in Figure 14 D, hole shape apparatus for converting projection 1441 can be extended a segment distance B from the wall azimuth 1440 of container 1400.Perhaps, hole shape apparatus for converting projection 1441 can be from the wall depression one segment distance B of container member 1405.And, the distance D between two haunched members, and the degree of depth C between each haunched member can change according to material therefor, its thickness and product to be allocated.

In another embodiment, shown in Figure 14 E, protection haunched member 1444 is greater than remaining those projection 1441, and extends deeplyer than them, thereby can be provided more assurance and bigger resistance by careless or unexpected opening for preventing.In another embodiment, shown in Figure 14 F, a hole shape apparatus for converting 1440 comprises single " V " shape groove.Should be understood that, and the multiple built up section arbitrary dimension or the shapes of containers of hole shape apparatus for converting described herein and haunched member and the various plastic material with all thickness can be used together.

Now see also Figure 15 a and Figure 15 b, there is shown another embodiment of the present invention.Specifically, a container 1500 is rectangular shaped substantially, and has a curve stress concentrator hole shape apparatus for converting 1510.Though hole shape apparatus for converting 1510 is with shown in Figure 13 similar, but, should also be noted in that, in the present embodiment, hole shape apparatus for converting 1510 is formed into an end edge along in the extension 1530, rather than is formed in the azimuth, and described extension is bent downwardly from the front portion of the receiving member of container 1500, as shown in the figure, a line of rupture 1520 passes across hole shape apparatus for converting 1510.Figure 15 C shows the container 1500 that is in running condition.Just as can be seen, line of rupture 1520 ruptures because of folded end 1530 backward.Because container 1500 can be made narrowlyer, therefore, can it be held with a firm grip in a hand easily, so that the article in the dispense container.

Figure 16 a and Figure 16 b show a kind of mechanism that is used for forming container shown in Figure 15 A-Figure 15 C.Figure 16 A shows a positive shaping die 1600 with curvilinear figure front surface 1610.This sun shaping die 1600 comprises a series of grooves and convex ridge.Equally, a yin shaping up body mould 1650 that is complementary has a curve front surface 1660, and has those grooves and complementary mutually groove and the convex ridge of convex ridge in the front surface 1610 of a series of and positive shaping die 1600.At work, the material that is used for forming a container is placed between formpiston 1600 and the former 1650.Because two front surfaces the 1610, the 1660th, complementary, so their mating engagement mutually, thereby make described material deformation become a curved stress concentrator.Should be understood that, with such

structure front surface

1610,1660, can obtain described any stress concentrator hole shape apparatus for converting in conjunction with Figure 14 A-Figure 14 F.

In the US Patent 5 that is entitled as " the stress concentrator hole shape apparatus for converting that is used for airtight container and packing material "; 395; in 031; describe also claimed: " one by that make, smooth substantially, the relative harder sheet element of relative material thin, relatively softness ... have a flat substantially channel shaped mechanism ... ".

In the development of these new packings, people are surprised to find that, overall shape for the hole shape apparatus for converting, when being used in one with a kind of more shallow, " L " or " hockey bat " shape of falling when having the container of an edge or lug extension, it is splendid that the arrangement works of curvilinear figure (not being " substantitally planar ") is got up.The hole shape apparatus for converting forms in the edge of people's container or the lug extension and is positioned at its below, advances and is bent downwardly towards the direction of container wall, and form in the described wall of people.Find that the shape and size in hole can change according to the position that passes across line of rupture, find that also the structure of described container wall is significantly reinforced, and is wider than the expection hole that can make.What can see is, can with the curvilinear structures that is independent of the container manufacturing with adhesive agent be sealedly attached to container or other structure respectively cooperate curved surfaces.

Figure 17 shows a kind of like this embodiment of the present invention.Specifically, Figure 17 show one independently, curvilinear figure, expandable hole shape apparatus for converting 1700.As hole shape apparatus for converting as described above, a line of rupture 1720 passes across hole shape apparatus for converting 1700.Hole shape apparatus for converting 1700 be formed on one in fact can be arbitrary shape, in the curved pedestal 1710, thereby hole shape apparatus for converting 1700 can be installed on arbitrary curved surfaces that matches.As already pointed out, hole shape apparatus for converting 1700 can be installed in the opening top in the vessel surface in every way, and these modes comprise: the periphery around pedestal 1710 is provided with adhesive agent.

Figure 18 shows a block diagram that is similar to beak shape thing stress concentrator 1800, half pyramid.Though can being formed into all, stress concentrator 1800 has in the surface of a lot of shapes,, the stress concentrator 1800 of present embodiment is formed in two quite level and

smooth surfaces

1810,1820 as shown in the figure.Stress concentrator 1800 is a hollow, and is opened on the rear portion (not shown), and therefore, it can be fixed in a receiving member, is similar to the such container shown in Fig. 5 a-Fig. 5 c thereby form one.As each embodiment described herein, the half pyramid beak shape thing that is similar to stress concentrator 1800 is crossed by a line of rupture 1830.Should be understood that, that as embodiment shown in Figure 17 the beak shape thing that is similar to half pyramid-shaped of projection and so on also can be formed in the curved pedestal.

Therefore, also as can be known be, some simple opening features can form and be sealed in or be bonded in the interior or outside face of a lot of packing materials independently, such as the container, pocket type pillow shape packing material (sachet) etc. of bag, dress milk, with very effectively, distribution package thing or extrusion bag at low cost.The packing material of these squeeze bag types can distribute paste like food such as pet food, sweet wine, butter, sour milk, the dough of some type, the frosting compound on the cake, and can be made by co-extrusion thing any, treated, cardboard, plastic sheeting, paper tinsel, thin slice or these materials through applying.

Though should be understood that, illustrating each packing material of the application, and it has or appears to have a kind of quite firm structure that is used for receiving member.Adopt thermo shaping method on the bottom of a softness or receiving member, to form a relative harder edge.Figure 19 shows a kind of like this structure, and it has a harder edge 1910 and a softer receiving member 1920 relatively.Should be understood that, that also this structure can be upright, and, how much prevent to tumble in beans bag mode in fact.

Claims

1. can push in the cup or tub of ground allocated product a kind of being used for, one thin-walled pressure vessel of being made with thermo shaping method by relatively thin flat plastic sheeting comprises the contained structure of a hollow, described contained structure has a pedestal that is parallel to flat edge on, one thin cover panel is connected in described flat edge hermetically with a kind of sealing means, described sealing lip edge is around described contained structure, the at least a portion on described sealing lip edge is from described hollow contained structure, one section suitable distance stretches out, so that it plays the effect of a lug, the ledge portion of described extension has a line of rupture on its bottom surface, described line of rupture passes across described lug perpendicular to a line of centers, described line of centers stretches out from described hollow contained structure, when described ledge portion is upwards bent, described line of rupture can make described lug rupture at described line of rupture place, make outer ledge portion and remaining protruding pinna phase-splitting dialysis thus, but still keep simultaneously sealing mutually with thin cover panel, described cover panel is also upwards bent, to form an exit passageway that is used for the material that can flow between remaining ledge portion and described thin cover panel.

2. container as claimed in claim 1 is characterized in that, described upright hollow contained structure is the barrel-shaped shape of a truncated cone shape substantially.

3. container as claimed in claim 1, it is characterized in that, described sealing means can form a unencapsulated ligulate district between the described edge of its protruding pinna office and described thin cover panel, described unencapsulated ligulate district is surrounded around the cover sealing component of ledge portion periphery and around its continuation at its edge, described unsealing district stretches out from the hollow contained structure, and pass across described lug and the line of rupture that is positioned on the described lug bottom surface, and terminate in the cover sealing component place of periphery.

4. container as claimed in claim 3 is characterized in that described line of rupture is straight.

5. container as claimed in claim 3 is characterized in that described line of rupture is an arc, and its convex surface is towards the direction of leaving described contained structure.

6. container as claimed in claim 3, it is characterized in that the two ends of described line of rupture respectively have a straight part, described two straight portion are arch sections between dividing, described arch section passes across described unencapsulated ligulate district, and its convex surface is towards the direction of leaving described contained structure.

7. container as claimed in claim 2, it is characterized in that, described sealing means can form a unencapsulated ligulate district between the described edge of its protruding pinna office and described thin cover panel, described unencapsulated ligulate district is surrounded around the cover sealing component of ledge portion periphery and around its continuation at its edge, described unsealing district stretches out from the hollow contained structure, and pass across described lug and the line of rupture that is positioned on the described lug bottom surface, and terminate in the cover sealing component place of periphery.

8. container as claimed in claim 7 is characterized in that described line of rupture is straight.

9. container as claimed in claim 7 is characterized in that described line of rupture is an arc, and its convex surface is towards the direction of leaving described contained structure.

10. container as claimed in claim 7, it is characterized in that the two ends of described line of rupture respectively have a straight part, described two straight portion are arch sections between dividing, described arch section passes across described unencapsulated ligulate district, and its convex surface is towards the direction of leaving described contained structure.

11. container as claimed in claim 1, it is characterized in that, described extension lug has a stress concentrator hole shape apparatus for converting, it comprises what at least one came out from its lower surface projection; thin-wall channel shaped projection; described lower surface is crossed by the line of rupture on the described lug bottom surface; described at least one lug stretches out just above the line of rupture that is crossed from the intersection that the sidewall with described hollow contained structure intersects; described at least one projection is surrounded around the cover sealing component that extends the ledge portion periphery with around its continuation at described edge; described at least one projection is bent downwardly from the sidewall of described hollow contained structure, to play the effect that a wall strengthens force-applying member.

12. container as claimed in claim 1, it is characterized in that, described ledge portion has a groove on the side thereon, described groove stretches out from described contained structure, and vertically pass across line of rupture on described lug and the described lug bottom surface, and stop just above described line of rupture, thereby when with described ledge portion upwards bending form a micro groove outlet that is used for low viscous product so that during the fracture of described line of rupture.

13. container as claimed in claim 3, it is characterized in that, the upper surface in the described unsealing ligulate district of described ledge portion has a groove, described groove extends to a position from described contained structure, this position is just to have stopped one section than short range before the line of rupture that arrives on the described lug bottom surface, thereby when with described ledge portion upwards bending so that during the line of rupture fracture, can form an outlet with valve function.

14. container as claimed in claim 2, it is characterized in that, described ledge portion has a groove on the side thereon, described groove stretches out from described contained structure, and vertically pass across line of rupture on described lug and the described lug bottom surface, and stop just above described line of rupture, thereby when with described ledge portion upwards bending form a channel shaped outlet that is used for low viscous product so that during the fracture of described line of rupture.

15. container as claimed in claim 7, it is characterized in that, the upper surface in the described unsealing ligulate district of described ledge portion has a groove, described groove extends to a position from described contained structure, this position is just to have stopped one section than short range before the line of rupture that arrives on the described lug bottom surface, thereby when with described ledge portion upwards bending so that during the line of rupture fracture, can form an outlet with valve function.

16. container as claimed in claim 8, it is characterized in that, the upper surface in the described unsealing ligulate district of described ledge portion has a groove, described groove extends to a position from described contained structure, this position is just to have stopped one section than short range before the line of rupture that arrives on the described lug bottom surface, thereby when with described ledge portion upwards bending so that during the line of rupture fracture, can form an outlet with valve function.

17. container as claimed in claim 9, it is characterized in that, the upper surface in the described unsealing ligulate district of described ledge portion has a groove, described groove extends to a position from described contained structure, this position is just to have stopped one section than short range before the line of rupture that arrives on the described lug bottom surface, thereby when with described ledge portion upwards bending so that during the line of rupture fracture, can form an outlet with valve function.

18. container as claimed in claim 10, it is characterized in that, the upper surface in the described unsealing ligulate district of described ledge portion has a micro groove, described micro groove extends to a position from described contained structure, this position is just to have stopped one section than short range before the line of rupture that arrives on the described lug bottom surface, thereby when with described ledge portion upwards bending so that during the line of rupture fracture, can form an outlet with valve function.

19. container as claimed in claim 1, it is characterized in that, described ledge portion has one and is half pyramid, that resemble the beak shape, hollow stress concentration projection substantially, it is from the downward extension of described lug, and it is crossing with the sidewall of its bigger end and described contained structure, described projection is crossed by the described line of rupture on the described lug bottom surface, and the described projection with these structures can play the effect of an enhancing reinforcing member between described lug and described contained structure wall.

20. container as claimed in claim 1 is characterized in that, the contained structure of described hollow has rectangular substantially and a cross-sectional plane with an azimuth, and described lug extends beyond described azimuth.

21. one kind is used for the packing material of splendid attire flowable mass or the stress concentration apparatus of container, it comprises:

One by smooth substantially, the relative harder sheet element that form than soft material that approach, relative relatively;

One is arranged on the stress concentrator hole shape apparatus for converting in the described sheet element, and it comprises at least one elongated, thin-wall haunched member, and described projection is come out from a surperficial projection of described sheet element, and has a curved substantially channel shaped structure;

Described sheet element comprise one around described stress concentrator hole shape apparatus for converting, smooth peripheral part basically; And

One line of rupture with predetermined length passes across described curved substantially shape, channel shaped stress concentrator haunched member;

Therefore, with end described curved shape substantially, channel shaped stress concentrator haunched member around described line of rupture, towards the bending of the direction of described protection haunched member, described stress concentrator raised structures is moved break away from described curved configuration, can make the line of rupture fracture thus;

In case described line of rupture ruptures, described at least one channel shaped stress concentrator haunched member just forms a relatively soft and expandable hole opening.

22. one kind is half pyramid substantially, resemble the beak shape, the stress concentration projection of hollow, thin by one, smooth thermoplastic film forms with thermo shaping method, and extend downwards from described thermoplastic film, an end that it is bigger and a wall intersect, described wall is to use same flat film, form simultaneously with thermo shaping method approximately perpendicular to described film, described stress concentration projection is crossed by a line of rupture in a desired location, and the described stress concentration projection with a kind of like this structure can play the effect of an enhancing reinforcing member between the wall of described flat film and described approximate right angle.

23. can push in the cup or tub of ground allocated product a kind of being used for, one thin-walled pressure vessel of being made with thermo shaping method by relatively thin flat plastic sheeting comprises that one is nonrigid, the contained structure of hollow, described contained structure has a relative harder edge, one thin cover panel is connected in described flat edge hermetically with a kind of sealing means, described sealing lip edge is around described contained structure, and at least a portion on described sealing lip edge is from described hollow contained structure, one section suitable distance stretches out, so that it plays the effect of a lug, the ledge portion of described extension has a line of rupture on its bottom surface, described line of rupture is to pass across described lug perpendicular to a line of centers, described line of centers stretches out from described hollow contained structure, when described ledge portion is upwards bent, described line of rupture can make described lug rupture at described line of rupture place, make outer ledge portion and remaining protruding pinna phase-splitting dialysis thus, but still keep simultaneously sealing mutually with thin cover panel, described cover panel is also upwards bent, to form an exit passageway that is used for the material that can flow between remaining ledge portion and described thin cover panel.