CN1950265A

CN1950265A - Reclosable bag and reclosable passageway in slider for reclosable bag

Info

Publication number: CN1950265A
Application number: CNA2005800146322A
Authority: CN
Inventors: 斯蒂芬·G·阿姆斯特朗
Original assignee: MO Products Inc
Current assignee: MO Products Inc
Priority date: 2004-03-19
Filing date: 2005-03-17
Publication date: 2007-04-18
Also published as: US20050207679A1; WO2005090179A1; AU2005222738A1; US20060008187A1; CA2560274A1; JP2007529365A; EP1730043A1; KR20060135895A

Abstract

The present invention provides a slider (20) for opening and closing a bag opening (16) of a bag (10), wherein the bag opening (16) has opposed interlocking features (18), the slider (20) comprising a movable body (38) in the bag opening (16), between the opposed interlocking features (18), to engage and disengage the interlocking features (18) as the body (38) moves, a passageway (26) in the body (38), to provide access between an interior of the bag (14) and an area outside of the bag (28); and a valve (80) for selectively opening and closing the passageway (26) and to provide an access through the passageway (26) between the bag interior (14) and the outside of the bag (28).

Description

The sack of Reclosable and the passage that is used for the Reclosable of slide block wherein

Technical field

The present invention relates to general field of containers, relate more specifically to high-mobility, multipurpose, wheeled vehicle, professional reservoir bag.

Background technology

Sack be often used as and by people regard as easily, multiduty, lightweight and container cheaply.Sack with opening of Reclosable is useful, because it provides better safety for wherein content with for storing purpose.The advantage that such sack also has is that the precious or responsive content of protection perhaps selectively, protects environment to avoid the pollution of poisonous or deletrious content better.

A kind of structure of common closed sack has two rectangle substrates that the plastic film that links together along three limits is made, Yi Bian leaving opening at the top usually.By form the interlocking bar on two relative substrates, for example, by tongue piece and slot part, the opening or the slide fastener of Reclosable are set at open side.By each substrate is pressed together, can closed easily described sack, so described tongue piece is engaged in the described groove, and, opens substrate by being drawn back.

In some cases, add slide block and promote opening and sealing of sack.Slide block is independent, common molded Plastic Parts, and it is installed on the substrate and forms the opening of sack around the limit of substrate, so it can be along described slip.Slide block is fabricated to usually, applies inside pressure force and promotes relative plane to connect or interlocking, and comprise disconnector or the finger that strides across the sack opening.By this structure, seal described sack and need promote slide block in the sealing direction, and open sack need along opposite, open direction and move described slide block.

In many application,, wish that the osed top sack forms air tight or leak proof seal such as the storage of food, liquid or biological waste product.Yet for the sack with slide block, the disconnector of slide block or finger part strides across opening usually, this overslaugh the formation of gas tight seal.Attempt in the improved plan at one, the U.S. Pat 6,526,632 of Blythe has a slide block, and it lifts from separating component the opening of sack by rotate up slide block at closing end.Yet this device is more complicated than traditional slide block, and this has increased cost, and depends on special-purpose pairing fastener 12 significantly.

The feature of another hope particularly for the content of preciousness, is from the inner ability of removing surplus air of osed top sack.The user's of home storage bag common way is, such as, at first almost, only reserve the opening of fraction ad initio to tail ground sealing sack.Then, the extruding sack is to emit remaining air by little opening, and the user attempts the little opening of sealing before air reenters sack apace afterwards.Yet this fitfull method is normally inconvenient, and produces unsettled effect.It still is clumsy, special individual for the acrobatics and tumblings difference.

Make some and attempted improved plan, had the sealed sack of removing the built-in facility that air uses with structure.For example, the patent US6045264 of Minica has showed a kind of sack, and its open top that has is divided into main opening and the littler opening of finding time.The latter's open construction is used to remove remaining inner air for comprising a suction pipe.The patent US5839582 of Strong has showed a kind of sack, has the arc pump chamber of band sucking hole and check valve.When the closing bag period of the day from 11 p.m. to 1 a.m, described pump chamber can be compressed to extrude air by described check valve.The patent US4532652 of Herrington has showed a kind of extendible portion that adheres in the hole, and do in the substrate of side at film in described hole.The extruding sack causes that extendible portion from described side substrate separation, makes air overflow described hole.Afterwards, extendible portion turns back to the position of its coverage hole, prevents the further outflow of inner air.

These all matching requirements change the reservoir bag of standard, and this has increased cost.In addition, shown sack does not use slide block, and this may be the difficulty that is formed with owing to the gas tight seal of band slide block.

Summary of the invention

Needed is a kind of sack that can overcome the Reclosable of the relevant problem of one or more and existing sack.

Preferably, sack should be that the user is easy to, makes things convenient for osed top.Particularly, be preferably if use slide block to construct sack, described slide block helps stronger gas tight seal and opens and seal.Strong gas tight seal is kept the fresh of precious content better, and prevents poisonous content contaminated environment better.It also is preferred being configured to sack such, and promptly behind the sealing sack, the user can remove sack in-to-in surplus air easily, and gas or fluid perhaps selectively, do not disturb gas tight seal and fill up inside with gas or fluid.

In order to keep low-cost, sack uses gauge material and element to make preferably by traditional production technology.Sack preferably is suitable for producing as the reservoir bag of general applications or as the commercial container that beverage and other article are used.Another preferred feature is, is removable for the sealed opening features of sack.Thus, be not that common structure is that a side of slide block is opened sack and opposite side sealing sack, but the opening of for example making sack is that the either side at slide block when moving slider keeps sealing.This feature makes the sealed sack of producing have greater flexibility, and it is fit to the needs of different occasions more nearly.Also preferably, sack is liquid hold-up effectively, and has and prevent the feature of leaking accidentally.

Therefore, the invention provides a kind of sack of Reclosable, comprising:

(a) define the bag section of the inner and sack opening of sack;

(b) be used to open and seal the device of described sack opening, described device comprises:

(i) along the relative interlock of described sack opening, the size and dimension of described interlock can form sealing when being engaged; With

The (ii) slide block between relative interlock in described sack opening, when described slide block moves, described interlock engagement/disengagement, described slide block also is constructed to seal described sack opening when being placed in an end of described sack opening;

(c) passage in described slide block provides the path between the perimeter of the inner and described sack of described sack; With

(d) be used for selectively opening and sealing the device of described passage;

Wherein, when moving described slide block, selectively provide path by described passage between the described perimeter of described sack inside and sack to the described end of sack opening and sealed bag opening.

Description of drawings

Now so that only the mode as example is of the present invention preferred with reference to what illustrate in the accompanying drawings

Embodiment.

Fig. 1 is the transparent view of slide block at the sack of the Reclosable of the present invention of midway location;

Fig. 2 is that slide block is at sealing or sealing station, the transparent view of the sack of Reclosable among Fig. 1;

Fig. 3 a be the expression sack in noninterlocked position, the section drawing of the sack of Reclosable among Fig. 1;

Fig. 3 b is the view the same with Fig. 3 a, and the expression sack is in interlocking position;

Fig. 4 is mounted in the section drawing of the slide block of the present invention in the sack;

Fig. 5 is a transparent view of showing slide block among the Fig. 1 that hides element;

Fig. 6 is the lateral plan that does not have slide block among Fig. 1 of handle;

Fig. 7 a is the opening edge of expression slide block, and the perspective of slide block of the present invention is hidden figure;

Fig. 7 b is the view of the postrotational expression slide block of the slide block of Fig. 7 a opposite side;

Fig. 7 c is Fig. 7 a from the view of the slide block of seeing previously;

Fig. 8 a is the perspective of slide block of the present invention of the enclosed edge of expression slide block, hides figure;

Fig. 8 b is the view of the slide block rotation back expression slide block opposite side of Fig. 8 a;

The slide block that Fig. 8 c is Fig. 8 a when the front is seen;

Fig. 9 a is the front elevation of enclosed edge of the slide block of Fig. 9, and a side of slide block leaves the gap;

Fig. 9 b is the view the same with Fig. 9 a, and the opposite side of slide block leaves the gap;

Figure 10 is the transparent view of sack among Fig. 1, be illustrated in the slide block passage suction apparatus and at sack in-to-in content;

Figure 11 is the transparent view of another embodiment of the sack of Reclosable of the present invention, represents a retaining element and a slide block;

Figure 12 is the transparent view of another embodiment of the sack of Reclosable of the present invention, the commercial beverage packing of a circle of expression; With

Figure 13 is the transparent view of another embodiment of the sack of Reclosable of the present invention, represents a commercial beverage packing that corner plate is housed.

The specific embodiment

Shown in Figure 1 is the sack that seals of the present invention, represents with reference number 10 usually.Wherein bag section 12 limits sack inside 14.This bag section is the usually sealed or sealing along its limit except sack opening 16, and this opening defines and can select to open or osed top unsealing part.In Fig. 1, sack opening 16 is unsealing limits, top of the sack between end 22 and end 24.

The described sack that seals comprises the device that is used for optionally opening and sealing the sack opening.Described be used to open with the osed top device generally include two elements-along the position of sack opening 16 relative interlock 18 and slide block 20.Described slide block 20 is positioned at sack opening 16, between relative interlock 18, and is transportable along the part of their length at least usually.Described slide block 20 also has such structure, promptly when it moves, cause it process relative interlock 18 part engagement or separate.

In Fig. 1, shown slide block 20 is at the end 22 of sack opening 16 and the midway location between the end 24.In this position, relative interlock 18 is engaged the enclosure portion 15 between end 22 and slide block 20 that becomes sack opening 16, and separated structures becomes the opening portion 17 between slide block 20 and end 24 of sack opening 16.In Fig. 2, closed sack 10 has the slide block 20 that can always slide into end 24.As can be seen in this position, relative interlock 18 along sack opening 16 from the end 22 to the end 24 complete length is engaged with each other.Can observe out, in this position of slide block 20, osed top part 15 is in extreme length.

Closed sack 10 constitutes like this, and promptly when slide block was in position shown in Figure 2, wherein interlock 18 was meshed and sack opening 16 complete closed fully, and sack 10 is hermetically sealed usually.The present invention also comprises a passage 26, and the inlet with between the perimeter 28 that sack inner 14 and sack are provided also comprises the device that is used for optionally opening and sealing described passage.In Fig. 1, the passage 26 of demonstration is positioned at slide block 20.When the opening 16 of sack during by complete closed and sack 10 also gas tight seal, by described passage 26, sack of the present invention can correspondingly optionally provide the inlet between sack inner 14 and the perimeter 28.

Bag section 12 of the present invention comprises any structure with container or sack function.More specifically, bag section 12 limits sack inside 14, and this inside is the space that sack inside can hold the various contents that are used to deposit.

Sack opening 16 is represented certain zone or spaces, can obtain to enter the inlet of sack inside 14 whereby.According to the application scenario, the sack content can be deposited or regain again by sack opening 16.Sack opening 16 preferably the material by being used to constitute bag section 12 unsealing or connect seam and form, but also can on the surface of described material, the fracture by otch, crack, fracture, gap, hole or other any position form.Therefore the position of sack opening 16 can be along two of bag material or more limit, dividing range or the seam of multi-disc, perhaps along top, bottom, side, diagonal line or the other parts of described material.

Shown in Fig. 1 preferred embodiment, two rectangle substrates that connect material by three limits in four limits form simple bag section 12.Selectively, the embodiment of Fig. 1 also can form two substrates and seal two sides and make by folding single sheet material.For ease of reference, two substrates are represented with preceding substrate 30 and meron 32.In this embodiment, sack inside 14 is the spatial volumes between two

substrates

30 and 32, and sack opening 16 is to surround the zone that forms by the limit of described two substrates on sack unsealing top margin on its girth.

Bag section 12 also is preferably incorporated in the strut member 33 of close sack opening 16 on the sack outside.Described strut member 33 for example can adopt ridge, lug (ledge), thickening (bulge) or similar projections.In the sack of Fig. 1, the thickening or reinforcement of the edge of the strut member 33 open top side that is bag materials in each substrate of sack.As below going through, strut member 33 provides support that promotes slide block 20 or the surface of adhering to.

Should observe out, other embodiment of bag section 12 also is possible, as long as they limit the sack inside 14 that can hold content, and sack opening 16 is set to sack in-to-in inlet.Some alternate embodiments comprise the bag section 12 that does not have the sphere material of substrate or seam to form by monolithic, as shown in figure 12, and the perhaps more complicated sack that corner plate is housed with six substrates, as shown in figure 13.In these embodiments, sack opening 16 can be formed by fracture in the material that forms bag section 12 or otch.

Bag section 12 is preferably made by such material, promptly has enough density and holds air, gas, liquid or other fluid contents with no leak ground, and have enough intensity not hold desirable content with tearing.Described material preferably should be water-resistant material, does not have loss structure intensity when contacting with liquid.For those reasons, it is found that the sack by plastics or polyethylene manufacturing is enough to meet the demands.According to application, other material is such as film, lamination or coated paper or say that barrier paper also can have suitable effect.Described bag material is preferably level and smooth, but also can make lamination.Described lamination sometimes preferably, particularly in big bag, because the passage that they provide the air motions in the sack inner 14 to use.

In order to keep the softness characteristics of sack, described material also should be preferably pliable and tough or resilient.The soft degree of material can change according to application.Yet, preferably, have enough at least flexibilities, can be drawn by the user or drag together so define that part of sack opening 16 girths in the bag section 12, to seal sack opening 16 effectively.

Sack 10 of the present invention has such structure usually, and with sealing or seal the surface at its arbitrary place and all seams and the limit except sack opening 16, wherein sack opening 16 can be opened or seal selectively.Therefore, sealing sack opening 16 has the effect of surrounding inside 14 and sealing sack 10 fully.Sack 10 can be marked as to replaceability " closed " or " Reclosable ", means all that in each situation sack can be reopened or seal.

In Fig. 1, sack opening 16 is formed in the space between the top margin of unsealing side of relative substrate 30 and 32.Interlock 18 is installed on the interior section of

relative substrate

30 and 32, and described interior section forms the girth of sack opening 16.Interlock 18 is forepiece 34 and the interlocking elements on the meron 32 or the back part 36 of the preceding substrate 30 of reference (can't see among Fig. 1) more specifically.Described interlock 18 is arranged to toward each other, and its size and dimension can mesh and seal sack opening 16 when

substrate

30 and 32 is gathered together.

In the preferred embodiment of Fig. 1, the position of interlock 18 is positioned at the inside top edge of substrate 30 and 32.This position is best, because it makes inner space 14 maximums of sack 10.Yet, can recognize, interlock 18 can be placed in any position on the sack 10, and location in any direction, as long as its constitutes relative a pair of of size and dimension, sealing sack opening 16 when being engaged.

Any such structure of interlock 18 representatives, promptly when described substrate gathers together or make it close mutually, the relative substrate engagement that can make bag section 12 is with sealing sack opening 16, but also comprise any such structure, promptly when described substrate is drawn back or pushes open, can make the ingear substrate separation to reopen sack opening 16.Interlock 18 is preferably enough firm on design and composition, opens and seals can repeating in the life expectancy of sack 10, and do not experience undue loss on the intensity of mate.In addition, the size and dimension of interlock is preferably in when being engaged and can forms sealing.Thus, for example the fluid composition of sack inside 14 can not flow out sack by the interlock after the engagement.

The preferred type of interlock 18 comprises each mechanical element, and these elements, can be interlocked such as by slide, compress or embed a feature of (snap) in further feature by interference fit or snap fit.Such layout is commonly called " slip feather " or " convex-concave " (male and female) structure, has for the inner component of ligulate or convex part and is the exterior part of groove or recessed portion.Fig. 3 represents the viewgraph of cross-section of the preferred embodiment of interlock 18.In Fig. 3 a, have convex or ligulate feature 34 and spill or cavity feature 36.In the figure, relative interlock does not link together or meshes together, so sack opening 16 is opened.In Fig. 3 b,

feature

34 and 36 is engaged, so ligulate feature 34 is inserted in the cavity feature 36 by snap fit.Described feature 34 with 36 preferably by making with

substrate

30 and 32 the same plastic material, and its size and shape can make ligulate 34 fit snugly in the groove 36.The elastic combination with material of closely cooperating makes ingear to constituting effective seal, and opposing separates, unless apply minimum enough power to

relative substrate

30 and 32 they is drawn back.Can recognize that ligulate feature 34 is big more with respect to cavity feature 36, make these feature snap fit can be difficult more, can be stronger but connect, sealing can be tightr.

Have been found that preferred arrangements shown in Figure 3 is normally suitable, particularly for using cheaply, because it has suitable in-use performance and can make at low cost.Yet, can recognize that other type of interlock 18 is also contained in the present invention, as long as they keep the characteristic that does not need too big difficulty ground to mesh or to separate, keep the minimum enough intensity of use of ingear, and after repeating to open and seal, keep this ingear intensity.Other possible embodiment can comprise, for example meshes or separate the magnetic devices of relative substrate.

The element that slide block 20 is preferably part independently or separates with bag section 12.Each view of the preferred embodiment of Fig. 5-9 expression slide block 20, in order to promote clearness, the single glider element is illustrated separately, perhaps is not connected to bag section 12.

With reference to Fig. 5, slide block 20 is usually included in center or the core body 38 that has outstanding handle 40 on the either side.Described core body 38 has top 42, a bottom 44 and an opposite side or side surface 46, and for clarity, side surface is also divided into side surface 45 and side surface 47.Side surface 46 comprise in the slide block 20 towards or with the part of relative interlock 18 contacts of sack 12.

Can see that by the view of hiding among Fig. 5 core body 38 is the wideest at the center, and towards relative top, end or limit 48,50 be tapered.Each

limit

48 and 50 length extend to bottom 44 from the top 42 of core body 38.Slide block 20 also preferably has such size and dimension, promptly with the shape complementarity of sack opening one end, so that slide block forms optimal seal.Because the result of this preferred structure, body 38 resembles flat ellipse in birds-eye view, a bit stopping of each end place.This feature of this slide block 20 can see in Fig. 1 and Fig. 2 that also wherein with the top of hidden line (dotted line)

expression substrate

30 and 32 in sack opening 16, this top surrounds the oval core body 38 of slide block 20.

Handle 40 provides and keeps slide block 20 in the appropriate location of sack 12 or attached to the support of sack 12, but also when being provided at moving slider for the user for handle, handle or the contact of grasping.Handle 40 preferably be attached to slide body 38 or from the top 42 or the slide body 38 of its vicinity extend, and extend outwardly into either side and 44 extend downwards towards the bottom.Bottom for handle also preferably extends internally towards body 38, to produce support lugn 52.In Fig. 5, handle 40 comprises outside panel 53, downward panel 54 and inside panel 55.Yet can recognize, also be enough to use such as the handle 40 that forms from single curved panel.In another embodiment, provide more face area, handle 40 is above the top 42 that can vertically rise to slide body before outside and the upset downwards.

Can recognize that handle 40 comprises towards the interior section of the side 46 of slide block with in the face of the side of slide block and away from the exterior section of this side.Described exterior section has can be by user's grasping to catch or the surface of moving slider 20.Therefore, the size and dimension that handle 40, the particularly exterior section of handle 40 have preferably provides comfortable and safe grasping surface.For example this use that can be included in the indentation in the described surface or have the elastomeric material of tubercle is to provide more effective grasping.

The size and dimension of handle 40 also is preferably such, so described interior section is common and the profile of the side 46 of slide block is similar.In the preferred embodiment of Fig. 5, the interior section of handle 40 is correspondingly similar with the elliptic contour of

core body

38, and 48 and 50 centers towards core body stretch out from the end for it.Just as shown in FIG., handle 40 and their interior section extend towards the end 48 of slide body 38 always, but are stopping near 50 places, end.Relate to the difference in functionality that serves as by

end

48 and 50 for this structural reason, and discuss in more detail below.

Slide block 20 also preferably has such structure, the side 46 of slide body 38 and the separation of the interior section of handle 40 or

single substrate

30 and 32 thickness along sack opening 16 that clearance distance approximately is bag section 12.More preferably, described separation or clearance distance will be bigger than the thickness of sack substrate, so the substrate that exists enough spaces to be used for sack injects and is assemblied between slide body 38 and the handle 40, keep sealing to be connected with failure-free simultaneously.

Fig. 7 and 8 provides the enlarged view of the side surface 46 of slide block 20.For the purpose of more clear, in these figure, handle 40 is delineate just, so can more clearly see slide body 38 and side 46.Can see that each

independent side surface

45 and 47 has siding track 56, perhaps more specifically have on the side surface 45 siding track 60 on the siding track 58 and side surface 47 separately.The size and dimension of described siding track 56 can cooperate with the relative interlock 18 on the bag section 12 or slidably mate, and therefore preferably is configured to tongue or groove.Can see that from Fig. 7 a and Fig. 8 b siding track 58 comprises ligulate or protruding attaching parts, can see that siding track 60 comprises groove or recessed attaching parts from Fig. 7 b and 8a.

Siding track 56 preferably is arranged in the centre of body 38, and is identical with the distance of bottom 44 apart from top 42.Also preferably by the desirable feature of engraving side 46 in, no matter ligulate or groove form siding track 56, so side 46 maintenances are flat or the profile that flushes.

Siding track 56 extends the length of sides 46 usually, but according near

end

48 or 50 and structurally change.Highlighted in Fig. 7 medial end portions or flange 50, Fig. 7 a provides the transparent view of side 45 and ligulate siding track 58, Fig. 7 b provides the transparent view of side 47 and groove siding track 60, and Fig. 7 c provides the front elevation of two sides and siding track.Can see that siding track 56 just stops in flange 50 fronts, and does not have mutual action, in abutting connection with or other contact with each other.Therefore in fact flange 50 separates described siding track 56,44 keeps usually continuous from the top 42 of slide body 38 to the bottom, does not have open circuited line.

Similarly, end or flange 48 are highlighted in Fig. 8, and Fig. 8 a provides the transparent view of side 47 and groove siding track 60, Fig. 8 b provide the transparent view of side 45 and ligulate siding track 58, Fig. 8 c that the front elevation of two sides and siding track is provided.In this case, siding track 56 they along the edge the 48 local mutual actions that meet, produce the outer part 62 of hollow.

Provide Fig. 9 to improve the visibility of the structure at edge 48.In Fig. 9 a, the groove siding track 60 that drawn, but for illustrative purposes, blank is left in side 45, and siding track 58 does not draw.Can see that groove 60 extends to edge 48 always and it is centered on, so this groove is carved out the sub-fraction of side 45.Similarly, in Fig. 9 b, the ligulate of drawing siding track 58, blank is left in side 47.In this case, ligulate 58 is also extended always and it is centered on, so extend into side 47.When two siding tracks of Fig. 9 overlapped, the result was 48 the hollow space 62 along the edge that has occurred drawing in each view of Fig. 8.

Fig. 6 be slide body 38 along the side 47 lateral plan or section-drawing, groove siding track 60 has drawn.Can see that edge 50 keeps continuously and not disconnecting, because siding track 60 and siding track 58 (not drawing) all just stop in the front at this edge.In contrast, siding track 60 extends to edge 48 always and it is centered on, and produces hollow space 62 along siding track 58 (not drawing).As below will being described in more detail, 50 structure has the effect of separating relative interlock 18 to each siding track at the edge, simultaneously the structure engages interlock 18 at 48 places at the edge.For this reason, can alternately indicate the slide block end to open or separation edge 50 and sealing or associating edge 48.

Can make edge of opening 50 form straight vertical edges.Yet shown in Fig. 6 and Fig. 7 a and 7b, edge 50 preferably is configured to comprise along its length in the projection or the outshot 64 of a place or many places.The size and dimension of this outshot 64 can make the end of slide block 20 and sack opening 16 form tightr, more complementally cooperate.In this way, when slide block being moved to end of sack opening 16, can produce more effective sealing, as shown in Figure 2.

Slide block 20 also preferably includes passage 26, this passage be whole height along slide block from the top 42 aperture or the holes that extend to bottom 44.Fig. 5 represents to have the slide block of the hidden parts that draws with dotted line of passage 26.Described passage has any shape of cross section, such as circle, and ellipse, perhaps rectangle still is preferably circle.

Slide block 20 is preferably made by polyethylene or plastic material.Plastics are preferred, because it is firm relatively, in light weight, and anti-water, cost is low.Plastics also have an advantage to be, can relatively easily it be fabricated to the complicated shape as slide block 20.For example this can so realize, promptly by injection molding standard production technology, uses the design-calculated Standard Module to meet the shape of slide block 20.When bag section 12 was plastics, plastics also were preferred sliding block materials, so can easily make various parts.Can recognize that the present invention also comprises other material, as long as they have some or all above-mentioned characteristics.Other material that is used for slide block can comprise for example metal, and alloy is perhaps wooden.

When forming sack 10 of the present invention, the core body 38 of slide block 20 is positioned in the sack opening 16, so side 46 is placed between the apparent surface of forepiece 34 and back part 36.Shown in the cross sectional view of Fig. 4, slide block 20 is attached on the bag section 12 from inside and outside two parts of sack.On sack inside, the siding track 56 of slide block cooperates with the relative interlock of bag section 12 18 or slidably mates.With regard to the embodiment of Fig. 4, the tongue of forepiece 34 snaps over or is assemblied in the groove of siding track 58, and the tongue hasp of siding track 60 or be assemblied in the groove of back part 36.Can recognize that other embodiment of these interactional elements also is possible, as long as slide block and bag section 12 slidably mate.For example, interlock 18 is flushed with bag section 12, siding

track

58 and 60 is outwards given prominence to from the side of slide block.

On the outside of sack, can see that the size and the shape of the handle 40 of slide block is manufactured to the outer strut member 33 that meets or cooperate bag section 12 closely.Particularly, handle 40 surrounds strut member 33, so the bottom of strut member 33 rests on the support lugn 52 of handle 40.Can recognize that other embodiment of these elements also is possible, as long as handle has the exterior device that slide block is fixed to bag section 12.For example, the concrete shape of strut member 33 and handle 40 can change, as long as they adapt to the cooperation to constitute sealing and to be close to continuously each other.Similarly, the additional connection of other type except machinery cooperates also is possible, for example the magnetic connection between the relative outside of the inside of handle 40 and bag section 12 or strut member 33.

Can recognize that blocking element and handle closely are fixed on the bag section 12 slide block 20 around the close-fitting combination of external support component 33 in the sack.Particularly, the additional like this slide block 20 that connects, promptly it can not fall into sack inner 14 or come up from open top unintentionally.If there is not firmly strong effect, slide block 20 will be resisted the trial that maximum attempting makes it separate or unload from bag section 12.

When along sack opening 16 moving sliders, size that slide block 20 has and shape can mesh with interlock 18, perhaps selectively, separate with interlock 18.More specifically, the limit 48 of slide block 20 with 50 structures shape the certain portions of giving of sack opening 16 whether can mesh or separate when concrete direction moves at slide block.

Turn back to the preferred embodiment of sealed sack shown in Figure 1 10, can see, can be from middle position at both direction, promptly towards arbitrary end 22 or end 34, moving slider 20.Moving along either direction wherein when sliding, in the

slide block limit

48 or 50 one will be towards that end of moving direction, and another side will be drawn towards an opposite end.Sack 10 of the present invention is constructed such that slide block can move along the part of sack opening 16, connect according to the characteristic on the dilatory end of slide block 20 or limit or mesh being moved interlock 18 in this part that is covered by slide block, perhaps selectively, separate or separate.

More specifically, in Fig. 1, slide block 20 is oriented and makes connection side 48 towards the end 22 of sack 10 or the enclosure portion 15 of sack opening 16, and separates limit 50 towards the end 24 of sack or the opening portion 17 of sack opening 16.When towards the end during 24 moving sliders 20, interlock 18 will be connected with connection side 48 according to dilatory, sealing, engagement or interlock.Thus, enclosure portion 15 will increase on length, reduce and opening portion 17 is equal on length big or smallly.As shown in Figure 2, when slide block arrives end 24, the whole length of interlock 18 will be closed.Similarly, when slide block 20 towards the end 22 when moving, for example when the position from Fig. 2 moves to the position of Fig. 1, interlock 18 will be according to dragging and separating limit 50 and separate, and opens or separate.

The connection of slide block 20 and separation function can interlock 18 runs through the limit 48 of slide block 20 and 80 path is understood by drawing.As shown in Figure 4, interlock meshes with siding track 56 on most of length of slide block side 46.When the slide block of Fig. 1 towards the end 24 when moving, will be owing to being pulled to together continuously of siding track in the interlock through the part on dilatory limit 48, just arrive limit 48 and round the limit 48.When each siding track when being in the opposite flank on limit 48, will force the tongued and grooved feature 34 that slidably mates to contact with 36, tongue 34 hasps or compression are advanced in the groove 36.In addition, the inside of handle 40 is 48 consistent with the profile of side 46 always up to the limit.Because gap or separation distance between the inside of handle 40 and the side 46 are very little, and preferably have only the thickness of the thickness of edge, so force substrate 30 and 32 to rest in the track of siding track 56 and force them to fit together greater than the top of single substrate 30 and 32.Thus, interlock 18 slidably mates from the siding track 46 with slide block, as shown in Figure 1 65 and 66, to lock together each other,, seamlessly transit as their correspondence positions on enclosure portion 15 among Fig. 2.

On the contrary, when slide block towards the end 22 when moving because separate the termination of limit 50 on the siding track 56 of either side, the part through dilatory limit 50 in the

parts

34 and 36 of opposite feature can not mesh.In addition, the inside of handle 40 is only consistent with the profile of side 46, until do not reach any place that separates limit 50 as yet.For the inside of handle 40, there is no need to extend, because do not require interlock compressed together at separation 50 places, limit always.The result; when the parts 34 of opposite feature and 36 along with the profile of slide block 20 50 narrows down and when close to each other gradually towards the edge; because they come off from siding track 56; they will keep separately, not hold them in together from the external pressure of handle 40 because have guiding or track or do not have on the slide block siding track.

Can recognize, other that can seal sack 10 open/and closed characteristic can realize by the structure of improving slide block 20.For example, not to have connection side 48 and separate limit 50, can make slide block 20 have two connection sides 48.In this case, sack opening 16 can keep sealing in the length of arbitrary position of slide block in hope on two sides of slide block.Selectively, separate limit 50 if slide block is configured to have two, sack opening 16 does not have a part to seal.

When sack opening 16 during, can seal the structure that sack 10 has and in sack 14, to produce gas tight seal by complete closed.As shown in Figure 2, this sealing takes place when slide block 20 being moved to the sealing station at 24 places, end.

Interlock of the present invention preferably has such size and dimension, promptly can form sealing when being engaged.Particularly, ligulate feature 34 and cavity feature parts 36 preferably have such size and dimension, promptly form gas tight seal together the time when their interlockings or snap fit.Therefore, along with slide block in position shown in Figure 2, sack opening 16 from the end 22 to the enclosure portion 15 of the end 48 of slide block will be owing to the engagement of interlock 18 gas tight seal.

When being positioned in described sack opening one end, the structure that slide block 20 has can sealed bag opening 16.The structure that therefore slide block 20 preferably has can produce sealing around its periphery.Run into the some place of connection side 48 in enclosure portion 15 and since from close-fitting handle to internal pressure and with being connected of siding track 56, interlock 18 is closely pressed together.Thus, at the gas tight seal of maintenance at the interface of interlock 18 and slide block.Because the snap fit between siding track 56 and the interlock 18 along the side 46 of slide block, is kept gas tight seal.Therefore, the size and dimension that preferably has of siding track 56 can produce air-tight fit or airtight engagements with interlock 18.In the separation limit 50 of sack 10 and end 24 at the interface, particularly separate limit 50 by structure slide block 20 and realize gas tight seals, then this remedied sack opening 16 in the end 24 shape.In the preferred embodiment of sack 10, the limit 50 of slide block has " V " shape, and this remedies and closely cooperate similar " V " shape at sack opening 16 24 places in the end.Separate limit 50 and preferably also comprise projection or outshot 64.Shown in the lateral plan of Fig. 6, this is characterised in that by from the outstanding gas tight seal that keeps of slide block, any space that increases progressively that leaks gas with causing of being filled in sack opening 16 24 places may exist in the end.

Can recognize that other shape of slide block 20 and bag section 12 also can be used, as long as the enough complementary cooperation of fitting of the shape of slide block top and sack opening 16 ends to form closely.Can recognize also how the present invention carries out improved to prior art.The slide block of Shi Yonging generally includes disconnector or the finger that separates or pry open described substrate in the past.Described disconnector is configured to satisfy this function usually, and can not form complementary fit with the sack opening.Such slide block usually can not be in common moving the sealed bag opening because disconnector prevention slide block complete closed sack opening.

When slide block arrives end 24,, preferably settle a latch or other device that slide block 20 is fixing on the throne, and prevent that it from retreating in order to keep sealing.This realizes by a drg (detent) that in the present invention this drg is the latch or the bar of the motion of a part of slide block of locking.Drg can be placed in along arbitrary position of slide block 20 or bag section 12.

In the preferred embodiment of Fig. 1, bag section 12 comprises first drg 68, and slide block 20 is included in second drg 70 on handle 40 inboards.When slide block moved to sealing station, the structure of first drg 68 and second drg 70 can be engaged with each other.First drg 68 is preferably on the outside face that is positioned at bag section 12, such as the projection on the strut member 33 externally or the tubercle of rising.Second drg 70 is preferably the groove that is positioned at handle 40 inboards.When slide block 20 moves to sealing station, drg 68 hasps advance drg 70 or with its engagement.The connection of this realization preferably sufficiently by force with slide block 20 fix in position, when needs reopen sack, can be promoted slide block and not need too big difficulty to end 22 simultaneously by the user.

Can recognize that other embodiment that can pin slide block also is possible, as long as anti-limited slip block 20 retreats and keeps excellent sealing.For example, Figure 10 represents to have the slide block 20 of the drop ear 72 on slider top of being arranged on 42.At sealing station shown in Figure 10, drop ear can be moved, and other location is perhaps carried out in rotation, with the outside of bag section 12 on drg (not drawing) do snap fit.When the needs moving slider, the drop ear 72 and it is out of the way of upwards overturning is to recover the movability of slide block.

The structure of passage 26 can provide the inlet between sack inner 14 and the perimeter 28, and no matter whether sack opening 16 is opened or seals.In a preferred embodiment of the invention, passage 26 preferably becomes one in slide block 20 inside or with slide block 20.Because slide block is set between the interlock 18, can recognize that the inlet by passage 26 can not be affected between sack inner 14 and the perimeter 28, even sack opening 16 is sealed airtightly and seals.

The size of passage 26 and shape can provide the fluid passage inlet, such as gas or liquid, perhaps resemble particle or powdered solid substance.

Size that passage 26 has and shape are also preferably accepted fluid-transporting tubing 74, such as pipe (pipe), flexible pipe (tube) or common suction pipe.The common shape of pipe 74 is presented among Figure 10.Such device allows to use suction when when sack outside 28 is connected to described passage, for example shifts out the fluid of sack inside 14 by described passage 26.More specifically, have the coupling or the aspirator of insertion end 76 and free end 78 and can be connected to passage 26 on the slide block top surface 42.Can apply the content that resembles fluids such as liquid or gas that suction aspirates sack inside 14 at free end 78.In industrialness is used, preferably apply described suction by mechanical vacuum apparatus.In the current consumption product, preferably the free end 78 that acts on suction pipe of the mouth by the user applies suction.Preferably, fluid delivery tube 74 can be dismantled, and the size and dimension that passage 26 correspondingly has can be connected and separate with detouchable pipe 74.Thus, after removing fluid, can take off pipe 74 easily, so can not conflict mutually as the purposes of reservoir vessel with sack from sack inner 14.

Passage 26 preferably includes device or the valve 80 that is used to open and seal this passage, as shown in Figure 5.Valve 80 is that any can be placed in device or structure in the passage 26, and size and dimension that it has and structure have at least one closed state and at least one open mode.When valve 80 was in closed state, the meeting choked flow was crossed the fluid of passage 26.At this state, if sack opening 16, is understood gas tight seal sack inside 14 by complete closed.When valve 80 is in open mode, can realize entering sack inside 14, perhaps the fluid between sack inner 14 and the sack outside 28 flows.Can recognize that when valve 80 was in open mode and sack opening 16 by complete closed, the inlet that enters sack inside 14 can only obtain by passage 26 and valve 80.

Valve 80 is preferably check valve, means when valve is in open mode, only allows fluid to flow in a direction.For example, check valve can be configured to allow fluid to escape to flowing of outside 28 from sack inside 14, and obstruction fluid from outside 28 flows to sack inside 14.For example, such valve is useful for the air of removing with in the sack of crossing with storage food or other precious content.Selectively, described check valve can have such structure, and the path or the fluid that only promptly allow promptly to enter sack inside 14 from sack outside 28 at other direction flow, and hinders fluid and flow to outside 28 from sack inside 14.Such valve is useful for a kind of application, promptly needs to inject in sack special gas or the liquid of preserving or protecting the sack content, such as using formaldehyde to preserve biological sample.

Sack 10 of the present invention comprises the almost application that can realize the valve 80 of required flow characteristic by passage 26 of any type.For example, valve 80 can be two-way valve rather than check valve.Two-way valve is the valve with two open modes, and one of them state allows fluid to flow in a direction, and another state allows to flow in another direction.The startup of concrete state can be simply obtains from the use of valve.For example, extruding sack 10 can impel air to flow out from sack inner 14, flows to sack outside 28 by valve 80.Selectively, described pipe can be connected to passage 26 and exert pressure and impel fluid to enter in the sack with same valve.At this state, described valve allows fluid promptly to flow from outside 28 to sack inner 14 from the direction opposite with first application direction.Selectively, two-way valve 80 can have such structure, promptly the permission direction of fluid by valve originally on one's body or preferably set at slide block 20 lip-deep switches.

Described valve 80 can be constructed like this: when it was in open mode, passage 26 was opened basically or fully, can at full throttle flow so flow through the fluid of passage.Selectively, valve 80 can be constructed to be permeable to the degree of closed channel partly 26 to any hope.

Can recognize that described valve is constructed to be installed in the passage usually or is installed in the pipe that is positioned at solid.Therefore, in order to be installed in the passage 26 of the present invention, the standard valve of many types is available, because passage 26 is preferably located in the solid of slide block 20.The valve that is fit to be applied in a kind of general type in the passage 26 of the present invention is a ball valve, and it is as shown in Figure 5 valve 80 usually.When ball valve is exerted pressure, such as the suction by pipe 74, this ball valve can raise and open passage 26.The valve 80 of another kind of type is pinched valve (pinching valve), and it applies extruding or clamp slide block by passage provides path.Similarly, the valve of very common many other types also can be used in the present invention in industry and the consumer applications.Except ball valve or pinched valve, valve 80 for example can be a flapper valve, air valve, perhaps boiler check valve.

The present invention includes the application of the slide block 20 that does not have all-in-one-piece passage 26.Can recognize that because sack opening 16 can be opened or seal to the structure that slide block 20 has, and form gas tight seal when being in the complete closed position, the sack that has slide block 20 is useful, even without passage 26.For example, sack 10 can be filled liquid, forms gas tight seal with the osed top slide block, prevents the leakage of liquid.When using liquid contents, promote slide block and slightly open, pour out liquid.Because slide block 20, such sack 10 has to be opened and the osed top advantage easily, sentences content or the receiving fluids of preserving preciousness better but also have getting well of gas tight seal.

The present invention also comprises passage 26 is separated from slide block 20.Such layout is preferably used and is comprised or realize with passage 26 all-in-one-piece passage elements 82.Passage elements 82 is to be usually placed in two limits of sack 10 or the body between two substrates, and it comprises passage 26 and valve 80.The size and dimension that passage elements 82 has is similar to slide block 20, and perhaps it has other any size and dimension, as long as it can be placed between two limits of sack 10.Passage elements 82 is fix in position preferably.This for example realizes by each

limit seal substrate

30 and 32 around passage elements 82.

In one embodiment, two of sack 10 limits can be to limit the relative substrate 30 of sack opening 16 and two limits of 32.In this case, the limit of passage elements 82 can variety of way well known in the art be sealed between relative substrate 30 and 32.Sack 10 can also be made not the interlock 18 around passage elements 82, because do not need the motion of described structure 18 support slippers in this part of sack opening 16.Embodiment as shown in figure 11, its expression does not have the movable sliding block 20 of passage 26, and passage elements 82 has passage 26 and demountable pipe or suction pipe 74.

Can recognize that in the place of fixed access element 82, the use that enters the passage 26 of sack inside 14 can not be subjected to the influence of the particular location of sack 10 inner gateway elements 82.Therefore, In yet another embodiment, two limits of sack 10 can be the relative substrate 30 of unqualified sack opening 16 and two limits of 32.This generally include sack 10 except occupied by sack opening 16 that part of periphery.In Figure 11, for example, two limits that wherein are mounted with passage elements 82 can be along the enclosed edge 84 of

sack

10 and 86

substrate

30 and 32 limit.

In this embodiment, preferably, be placed in the relative substrate of sack 10 or the passage elements 82 between the relative limit and be connected, weld or be stitched together.Such layout has been simplified the manufacturing of sack 10, because passage elements 82 can be positioned between the substrate, and substrate surrounds passage elements.Described substrate can be soldered like before or be stitched together, and passage elements 82 is sealed between them.Passing through the folding occasion that connects two relative substrates, the installation meeting of passage elements is not very convenient owing to need making to portal.For example, if the sack among Figure 11 10 by along the base 88 folding single substrates make, passage elements is installed on limit 88 can be inconvenient.If sack is made by the

substrate

30 and 32 of the separation that connects along all side welds or link together, along

arbitrary limit

84,86,88 passage elements 82 being installed so can be equally convenient.

The preferred embodiments of the present invention can be understood as wherein now, and passage elements 82 is situations of slide block 20.This embodiment is preferred, because have only the sack of a body, comprises the slide block that has the all-in-one-piece passage, than the sack with two bodies, comprises passage elements and slide block, and common manufacturing cost and use cost is lower and efficient is higher.

The production of the sack of general type relates to along three limits or connects two rectangle substrates along the relative edge of single folding substrate, reserves unlimited sack opening 16 in a side.Slide block can be inserted into sack opening 16 in manufacturing process, so along sack opening 16, it is transportable, and does not unload from sack.Standard production equipment is also carried out operation with height running or high production speed usually, and this causes cost to reduce.

The bag section 12 of sack 10 of the present invention can be reserved sack opening 16 and be formed by connecting by one or two plastic substrates along two or three limits similarly.Use the standard production technology to make similarly along the interlock 18 of sack opening 16.Slide block 20 of the present invention is manufactured to independently body, can produce by the standard injection forming technique.Therefore, when slide block was different from the slide block of prior art on form and function, it still can be made with similar low cost.In addition, be used to produce sack and can be used in production sack 10 of the present invention with the standard production equipment that slide block is installed.Aborning, removable slide block 20 will be positioned in sack opening 16 belows, if necessary, along connection between the substrate or seam, passage elements 82 separately will be installed in sack opening 16 or before substrate is sealed.

Therefore, can recognize sack 10 of the present invention can with the conventional sliders sack that does not have other advantage of the present invention approximately the same or equal low cost produce.The material cost of sack and slide block is similar to conventional bags, is having only under the improved slightly situation, and production facilities is the same or operable.In addition, because can use standard production equipment, the high operating speed of the industrial standard of this equipment can continue to use.Can also recognize that this represents improvements over the prior art.Because equipment of the prior art needs unconventional sack and valve usually, the material of sack and valve and production facilities are not standards, and need customization.In addition, operating speed may be lower, and this has increased the cost of each sack.

The embodiment that uses the sack that is configured to Reclosable 10 as shown in figure 10 describes operation of the present invention as the family expenses reservoir bag now.The user brings into use by slide block 20 is moved to end 22, opens sack opening 16.The user is left the food 90 of preciousness in sack inside 14, and the sealing or the sealing station at moving slider 20 24 places to the end seal sack then.Use in the situation of

drgs

68 and 70 at as illustrated in fig. 1 and 2 slide block 20, the user is by sensation or hear drg percussion or in place measurement of hasp move to slide block how far, so in second end, 24 meshing blocks.Selectively, have in the situation of drop ear 72 at slide block as shown in figure 10, the user rides over the relevant position by rotating drop ear to downward position and with it, slide block is locked in place.

At this moment, sack will be hermetically sealed, but sack inside 14 may comprise remaining air.The user is by air or fluid between 26 exchange sacks inner 14 of the passage in the sack opening 16 of Reclosable and the sack outside 28 then.For example, by with applying suction in the insertion end 76 reeve passages 26 of hollow tube 74 and to free end 78, can realize the removing of the air or the fluid of sack inside 14.When being the consumables, hollow tube 74 is suction pipe preferably, and applies suction by user's mouth.Valve 80 in this embodiment is preferably check valve, allows fluid to flow along the direction from sack inside 14 to outside 28.During whole or basic full scale clearance, pipe 74 can take out from passage 26, and sack 10 is placed in the warehouse when the air of sack inside 14.In another embodiment, be not to use hollow tube 74, can push sack 10 and impel remaining air by passage 26 effusion sack inside 14.This method also can have slide block and a passage elements 82 by shown in Figure 11

Embodiment is accomplished.

Can recognize that the method for sealing sack of the present invention has embodied improvements over the prior art.In the prior art, the user understands moving slider closed end 24 usually, reserves little opening 17.The extruding sack flows out opening 17 to impel remaining air.Then, the user keeps the another hand on sack with a hand sealing slide block simultaneously, to prevent flowing into air in the process of sealing slide block.In addition, in case sack is closed,, can not form gas tight seal owing to the disconnector of the conventional sliders in the sack opening or the existence of finger.Contrast therewith, in the present invention, the user can extrude air by pushing sack, hollow tube 74 being applied suction from sack, or in addition on the one hand, need not pay close attention to the possibility leaked-in air, because valve 80 can any leaked-in air of pinning.Therefore can recognize, the method that the present invention seals sack is simpler than orthodox method,, more convenient, and produced the bigger sack inner space 14 that does not have air.

In further application of the invention, valve 80 is installed in the passage 26, valve 80 permission fluids flow to sack inside 14 and stop rightabout flowing simultaneously.Such sack can use in commercial plant to receive drinks the fluid that fluid or other merchant sell.For example, when drinking fluid, valve 80 can be two-way valve, so the user can use suction pipe to get content at content.Selectively, two body constructions shown in Figure 11 also can use, and wherein slide block 20 has with the passage 26 of permission fluid at the mobile valve of a direction, and passage elements 82 has with allowing the passage of fluid at the mobile valve of other direction.In this case, use a passage to fill sack, use another passage to take out or drink content.For the non-fluid of drinking type, promote slide block and open segment apart from pouring out content with the permission user.

Can recognize that the structure of various commercial sacks all may be made by the present invention.Particularly, the parameter that will utilize for the designer of sack 10 of the present invention comprises:

select limit

48 and 50 limits as slide block, no matter between them, be to use single slide block 20 also to be to use the additional via element 82 that has one or two passage, the type of selector valve 80, and whether all parts or the part of seal interlocking structure 18.In addition, except two substrate structures of standard, the designer can select various sack shapes.For example, Figure 12 and 13 expressions are suitable as the example of the sack 10 of commercial beverage container.Figure 12 is a bulge, and Figure 13 is the rectangular vessel with the corner plate (gusset) on arbitrary end.Described bulge has cheap advantage, provides maximum internal volume for a certain amount of material that will use, but also makes the transport capacity optimization, because adjacent sack compresses each other, only reserves very little vacant space.

Can also use standard equipment to produce bag section 12, as the types of bags shown in Figure 12 and 13.Sack opening 16 can be formed by lip-deep finedraw of sack or otch, uses standard equipment that slide block 20 is installed.Shown in the various variants of embodiment in, sack opening 16 can be made shortlyer, perhaps the length of sack opening 16 is the longlyest as far as possible sealed.Slide block can move along short range, and this distance approximates the length of slide block greatly.Aborning, slide block can be positioned in the position of reserving little opening 17, injects a nozzle filling containers in opening 17.Then slide block is moved shortly, and after selling, remain on this position apart from sealed open.Path during use can enter by the suction pipe that injects passage 26.

Following a problem of being made by flexible material or occur at the commercial beverage packing that children use is owing to exert pressure for the side of sack, can spray content accidentally.In the sack of Figure 12 and 13, can recognize that the valve 80 of use preferably is configured to allow fluid to flow out sack inside 14.Such valve also can be configured to keep the predetermined threshold of closed state up to pressure.For example this force value can be set at and be higher than the common caused force value of accidental extruding by sack.Preferably, perhaps separately according to certain extruding of bag side or the combination of pushing according to these sides, but the setting pressure threshold value is to satisfy minimum suction level.Thus, can reduce or avoid the ejection accidentally of sack content.The size of passage in addition, can be fabricated to and only allow limited flow to prevent the unexpected injection of liquid.

In another embodiment, make sack 10 have slide block with two connection sides 48.Then, always at the both sides of slide block 20 sealing sack opening 16.In another variant, slide block can have the passage 26 that does not have valve 80, so described passage is always

opened.Substrate

30 and 32 below slide block 20 also can be sealed together at any point except sub-fraction.Therefore, sack 10 can seal in the position of each slide block 20 except the position of positioning sliding block 20, so passage 26 is directly just being opened on the part.The position of slide block is served as the effect of valve in this embodiment, to open or to seal described passage.Aborning, at first slide block is placed in and opens on the part, for example sack is filled up with drinking fluid to receive the nozzle of access passage.Then, promote slide block, the content in sealing transportation or the storage process to the side.When selling, the customer can moving slider to the entry position and insert suction pipe and drink content.

Can recognize that for those skilled in the art above stated specification is at preferred embodiment, do not break away from spirit of the present invention in the broad scope of attached claim, various changes and improvements are possible.For example, when when having the sack of one or two bodies, also can in being of value to the single sack of use, the application use more body.To recognize various other improvement for those skilled in the art, but not be any other details described here.

Claims

1, a kind of sack of Reclosable comprises:

(a) bag section of qualification sack inside and sack opening;

(ii) the slide block between relative interlock in described sack opening makes described interlock engagement and separation when described slide block moves, and described slide block also is constructed to seal described sack opening when being positioned at an end of described sack opening;

(c) passage in described slide block, it provides the path between the perimeter of the inner and described sack of described sack; With

(d) be used for optionally opening and sealing the device of described passage;

Wherein, when described slide block moves to the described end of sack opening and sealed bag opening, between the described perimeter of described sack inside and sack, selectively provide path by described passage.

2, the sack of Reclosable as claimed in claim 1 is characterized in that, the described described device that is used to open and seal described passage is a check valve.

3, the sack of Reclosable as claimed in claim 2 is characterized in that, described check valve is constructed to permission and enters described sack in-to-in path from described perimeter, and stops the path from sack inside to described perimeter.

4, the sack of Reclosable as claimed in claim 2 is characterized in that, described check valve is constructed to allow the inner path to described perimeter of described sack, and stops from described perimeter to described sack in-to-in path.

5, the sack of Reclosable as claimed in claim 4 is characterized in that, described passage is constructed to receive the connection of aspirator, and the suction that applies according to described aspirator allows to lead to described sack in-to-in path.

6, the sack of Reclosable as claimed in claim 5 is characterized in that, the size and dimension of described passage can receive the detouchable aspirator.

7, the sack of Reclosable as claimed in claim 2 is characterized in that, described check valve is one of following valve: ball valve, pinched valve, flapper valve, air valve, or boiler check valve.

8, the sack of Reclosable as claimed in claim 1 is characterized in that, described slide block has opposite side surface, each described side surface be constructed to along described sack opening slidably with described relative interlock in an engagement.

9, the sack of Reclosable as claimed in claim 8, it is characterized in that, one in the described relative interlock comprises tongue, in the described relative interlock another comprises groove, and the described side surface that slidably mates with described interlocking tongue feature has holding tank, and has tongue with described side surface that the interlock slot feature slidably mates.

10, the sack of Reclosable as claimed in claim 1 is characterized in that, the shape complementarity of the described end of the shape of described slide block and described sack opening leans on the described end seal of described sack opening to allow described slide block.

11, the sack of Reclosable as claimed in claim 1, it is characterized in that, described slide block comprises first drg, described sack comprises near second drg the described end that is positioned at the sack opening, and described first drg and second drg are constructed to be engaged with each other when slide block moves to described sealing station.

12, the sack of Reclosable as claimed in claim 11 is characterized in that, described first drg and described second drg are constructed to jut, to produce snap fit when slide block moves to described sealing station.

13, a kind of slide block that is used to open and seal the sack opening of sack, wherein the sack opening has relative interlock, and described slide block comprises:

Removable body in described sack opening between described relative interlock makes described interlock engagement and separates when described body moves.

14, slide block as claimed in claim 13 is characterized in that, also comprises:

(a) be arranged in the passage of described body, it provides the path between described inside and the sack perimeter; With

(b) be used for selectively opening and sealing the device of described passage;

Wherein, by described passage, path selectively is arranged between the perimeter of described sack inside and described sack.

15, slide block as claimed in claim 14 is characterized in that, described be used for selectively opening with the osed top device comprise check valve, described check valve is constructed to allow one of following path:

(a) lead to described sack inside from described perimeter, and stop path from described sack inside to described perimeter; Perhaps

(b) lead to described perimeter from described sack inside, and stop from described perimeter to described sack in-to-in path.

16, a kind of method of sealing sack, described sack has the opening of Reclosable, and this opening has first end and second end, and described method comprises:

(a) move slide block in the opening that is placed in described Reclosable from described first end to described the two or two end, to seal the opening of described Reclosable;

(b) engagement place at the described slide block of described second end to seal the opening of described Reclosable; With

(c), between the perimeter of described sack inside and described sack, provide path by the passage in the described slide block.

17, the method for sealing sack as claimed in claim 16 is characterized in that, described sack comprises content, and is further comprising the steps of:

(a) insert hollow tube to described passage, described pipe has the insertion end that injects described passage, and free end;

(b) apply suction to described free end, to take out the described content of described sack; With

(c) take off described hollow tube from described passage.

18, a kind of sack of Reclosable comprises:

(a) define the bag section of the inner and sack opening of sack;

(b) be used to open and seal the slide block of described sack opening;

(c) element between two limits of described sack, described element has passage; With

(d) be used to open and seal the device of described passage.

19, the sack of Reclosable as claimed in claim 18, wherein said element are described slide blocks.

20, the sack of Reclosable as claimed in claim 18, wherein said element is between two limits of the described sack opening of not constituting of described sack.

21, the sack of Reclosable as claimed in claim 18 is characterized in that, described element is between two limits of the described sack opening of defining of described sack.

22, a kind of sack of Reclosable comprises:

(a) define the bag section of sack opening;

(b) along the relative interlock of described sack opening; With

(c) slide block between relative interlock in described sack opening makes described interlock engagement and separates when described slide block moves;

Wherein, move described slide block along described sack opening and open and seal described sack opening.