CN1207082A

CN1207082A - Inflatable packaging cushion

Info

Publication number: CN1207082A
Application number: CN 96199485
Authority: CN
Inventors: 布莱恩·K·法里逊; 威廉姆·R·阿姆斯特朗
Original assignee: Sealed Air Corp
Current assignee: Sealed Air Corp
Priority date: 1995-12-01
Filing date: 1996-11-08
Publication date: 1999-02-03

Abstract

There is provided an inflatable cushion (10) inflated through a single inflation valve (23). A pair of inflated panels (11) held in place by at least one tie strap (19) connecting the panels rest beneath each end of the bottom of an article to be protected. The cushion has a pair of inflatable end chambers (14) interconnected to the bottom panels and a pair of inflatable side chambers (18) interconnected to the end chambers, which when inflated protect the ends and sides of the article. This is facilitated by internal openings which allow the inflated panels to easily bend underneath the ends of the article and around the corners. There are recesses (15) at each corner which extend from each corner of one internal opening toward a peripheral edge of the cushion to provide a wedge-like portion of the side chambers. In one of the embodiments, an additional pair of internal openings facilitates a pair of top inflatable chambers (20) interconnected to the end chambers to rest on the top of the article. In another embodiment of the present invention, the chamber protecting the upper portion of the article includes a single inflatable chamber which folds across the top of the article. The top chamber has an internal opening (122) in the middle thereof formed by a weld. Extending inwardly from the weld are portions of each thermoplastic sheet which remain after the cushion has been cut and adapted to hold a thin article.

Description

Inflatable packaging cushion

FIELD OF THE INVENTION

The present invention relates to inflatable packaging cushion, and relate to the inflatable packaging cushion of all sides of protection article between Time of Shipment or rather.

The background of invention

When article are packaged in a container that is used for loading and transporting or the chest, the space is often arranged in container.Usually use the next article that between Time of Shipment, cushion of protective package material at the article of different size and shape.There are the packing of polytype and form to be used for this purpose, comprising waste paper, belling paper, MLV paper be called the plastic beads of peanut.The gasket material of these forms does not always provide required buffering when the fortune dress, and generally is to use disposable one-shot usage product.

Multi-form pneumatic dunnage has been proposed when seeking the better protection material.Such example is the U.S. Patent No. 4 798 123 of authorizing Pharo, this patent disclosure a kind of inflatable bag, this be surrounded by one be used for fixing article the bag and be suitable for rolling, with take a kind of spiral-shaped in case the buffering article.This wraps in article and puts into bag inflation afterwards, reel this packing and being put in the pig of this gas bag, another example of inflatable packaging cushion is described in the U.S. Patent No. 5 042 663 of authorizing Heinrich, this patent disclosure a kind of inflatable cushion, this liner comprises one group of attachable flexible bladder.Another example of inflatable packaging cushion proposes in the U.S. Patent No. 3 889 743 of authorizing Presnick, and he discloses the thermoplastic bag that defines an inflatable chamber a cabinet interior.Authorizing explanation in the U.S. Patent No. 5 348 175 of Pozzo in an improvement aspect the inflatable packaging material, this patent disclosure be used for protecting the one or more sidepieces of article and/or the various forms of inflatable cushion of end.These inflatable packaging cushions can not be protected all 6 sides of article all the time with single liner.

By using inflatable packaging cushion of the present invention as mentioned below, the shortcoming of prior art packing discussed above is overcome.

Brief summary of the invention

Therefore, one object of the present invention is, a kind of single inflatable packaging cushion that is used for protecting all sides of article is provided.

Another object of the present invention is, provides a kind of and is easy to around the folding inflatable packaging cushion of the seamed edge of oblong article.

A further object of the present invention is, a kind of inflatable packaging cushion of inflating and protect all sides of object through single valve is provided.

Another purpose of the present invention is, a kind of inflatable cushion is provided, and wherein at least two cushion chamber link together by at least one connecting band.

Have been found that according to the present invention, realize above purpose by a kind of liner is provided, this liner is to press a ground overlapping by one of a pair of thermoplastic sheet, merges around its periphery heat-sealing to cut into that the shape and size wanted make.This cushion designs becomes to make that it can be through single charge valve inflation.When this liner is inflated at least in part, below the every end in bottom that a pair of inflatable base plate rests item to be protected.These base plates connect the different in width of these plates by at least one and the connecting band of shape is held in place.This liner has and a pair ofly is connected in the inflatable end chamber and a pair of inflatable side chamber that is connected in the end chamber of base plate through an air by-pass passage, and these chambeies are at the end and the sidepiece of when inflation protection article.Inside opening between each end chamber and base plate promotes (helping) gas filed plate to be easy to below the end of article and walks around the bight bending.Be provided with recess, the periphery of each angle liner of their inside openings below being positioned at article extends.When inflation, the side chamber forms wedge-like portion, and this part enters to contact and the side chamber is inclined upwardly with the sidepiece of article and chokes the sidepiece of article.In one embodiment, a pair of additional inside opening promotes a pair of chamber, inflatable top that is connected in the end chamber to rest on the top of article.In another embodiment of the present invention, inflatable base plate brings connection by at least two connections.

In another embodiment of the present invention, the liner on protection article top comprises the single inflatable chamber of the main portion of striding the article top fold and covering the article top.Chamber, single top has an inside opening that forms by welding in the middle.What extend internally from weld part is the part of each thermoplastic sheet, and these parts keep after liner is cropped.These parts are suitable for keeping thin type article, for example computer hard drive between sheet.

Brief description of drawings

When understanding in conjunction with the accompanying drawings, other purposes of the present invention, feature and advantage will become apparent from following detailed description of the present invention, in these accompanying drawings:

Fig. 1 is an axonometric drawing, and expression is in a kind of embodiment of inflatable packaging cushion of the present invention of inflation form of its encirclement item to be protected when it and a pig share;

Fig. 2 is the birds-eye view of inflatable packaging cushion of Fig. 1 constructed in accordance that is in its unaerated state;

Fig. 3 is the shaft side figure of the another kind of embodiment of inflatable cushion of the present invention;

Fig. 4 is the birds-eye view that is in the embodiments of the invention shown in Fig. 3 of unaerated state; And

Fig. 5 is the cutaway view along the line 5-5 of Fig. 4 intercepting, the chamber, top of the embodiments of the invention that expression is held in place a thin type flat article.

The detailed description of most preferred embodiment

Referring now to accompanying drawing, particularly Fig. 1 and Fig. 2 are suitable for putting into the inflatable packaging cushion of making according to the present invention 10 of the encirclement article A among box or the chest C shown in it.

Inflatable packaging cushion 10 comprises interconnective and be suitable for protecting the plate or the chamber of each side of article A through the inner passage.Inflatable cushion 10 is made by two thermoplastic materials, their by around its neighboring 12 heat sealings together and also they for example generally be suitable for the chest made by watt rib cardboard and so on or the size of box C.Inflatable cushion 10 comprises an inside opening 16, and this opening can be admitted the article A that is cushioned, and generally the inside recess 15 by periphery 12 extensions of each angle liner 10 of opening 16 internally defines.

Inflatable cushion 10 is made by two sir-tight thermoplastic materials.Can adopt the sir-tight thermoplastic material that to have bought of any kind.These sheets are folded each other to be incorporated in involution in the zone of their periphery-be weld line 13.Involution can for example seal incompatible realization with conventional technology.In addition, internal edge also welds with the same manner along weld line 13.The thermal plasticity slice should be enough soft so that adapt to the profile of products to be packaged, simultaneously should be enough firm, and unlikely high-crowned or slightly pointed part by claimed article A pierces through.The liner of this material can be exitted and repeated usage, but also can not emitted poison vapor by incineration, perhaps can be recovered.

As shown in Figure 2, inflatable cushion 10 is designed such that when it is inflated, and a pair of inflatable plate 11 rests below every end of bottom of article A.These plates 11 should be enough big, and the protection to article A downside is provided when suitably being inflated with convenient liner.The outline line of article A represents how these article are fitted on the inflatable cushion 10.When liner 10 was inflated, turned on the bight of article A at recess 15 places in the end chamber 14 that is positioned at the every end of article A and is connected in plate 11 through air by-pass passage, with the end of protection article A.Inner opening 17 of ability that the end chamber is adjacent to the article end promote, these inside openings make gas filed end chamber 14 can be at an easy rate around the following seamed edge bending of article.

Should be held in place by connecting band 19 inflatable plate 11.Connecting band 19 can at the periphery 12 of liner 10 and internal edge 13 be formed and this liner forms as weld seam when punched.The width of connecting band 19 can be different with shape.Otherwise plate 11 also can lean on one group of connecting band 119 to connect as shown in Figure 4.

Side inflatable chamber 18 when the inflating protection of the sidepiece of article A by be connected in end chamber 14 through air by-pass passage.Side chamber 18 forms wedge cavities, and this wedge cavities enters with the sidepiece of article and contacts and upwards upset, shown in the arrow among Fig. 1 and Fig. 2, to choke the sidepiece of article.

The recess 15 of the periphery extension of each angle liner of opening 16 is internally arranged at each place, angle.In Fig. 2, can see, recess 15 defines the wedge-shaped part that is formed by side inflatable chamber 18, by around coupling end chamber 14 and side chamber 18, the zone upset of being defined by the air by-pass passage area between recess 15 and the periphery 12 (pivot) substantially, these wedge-shaped parts can enter with object A and contact.The wedge-shaped part in chamber 18 can be changed the size of inside opening 16 and/or shape so that its adapts to the object of different size and shape around the upset in upset (pivots) zone, simultaneously by the clamp pressure of the interior recovery campaign maintenance of upset area division to article.

The shape of each recess 15 and/or periphery 12 is such, that is, in this scope, two upset zones lay respectively at two positions, and the distance between the recess 15 of liner 10 and the neighboring 12 is minimum there.In this example, as appreciable in Fig. 2, periphery 12 is straight and each recess 15 is droplet-shaped basically basically between the end in side chamber 18, that is to say have by an angle periphery 12 of opening 16 internally diverge to and near this limit by two shapes that

straight line

15a, 15b form that circular arc portion 15c connects together.

A zone is arranged in the scope of each circular arc portion 15c, and the distance minimum between described there recess 15 and the neighboring 12 and this area define a upset zone.The shape of recess 15 is not unique and those of ordinary skill that this is professional can be changed it, as long as it is just passable so that define a upset zone to know that it is enough to cause at least one stenosis between a recess 15 and periphery 12.For example, it is contemplated that the neighboring 12 that in the scope of each recess 15, has breach, so that define preferential upset zone with described recess.

4 lateral edges that are arranged in the article A of inflatable cushion 10 are engaged with 15 li of recess; Thereby they do not contact with liner, and this cushion chamber is reduced to minimum by these the crossing seamed edges wearing and tearing or the danger of making a mess of.In addition, recess 15 is by their deformable region, and preferably the buffer area constitutes.

The top of article A holds the chamber, inflatable top 20 in chamber 14 to protect by a pair of being connected in through passage.In the embodiment shown in Fig. 1 and Fig. 2, chamber 20, top is enough big, and the protection to article A top is provided when suitably being inflated with convenient liner.Chamber 20, top not necessarily will cover the whole area of these article.The size in these chambeies can be determined at an easy rate by this professional those of ordinary skill.Inside opening 21 between each chamber 20, top and end chamber 14 promotes chamber 20, top angular bend on the article end at an easy rate.Certainly, inside opening 21 can be to be positioned at and the opening 21 approximately uniform locational a series of less openings shown in Fig. 2.

Inflatable packaging cushion 10 comprises that one single is used for gas filed valve 23.As pointing out among Fig. 2 that inflatable chamber is gas filed by charge valve 23, this charge valve can be arranged in along any one place in some districts at liner sidepiece or top.Charge valve 23 is self sealss charge valves of any known type, and it generally includes two weld togethers superimposed and along the line so that form a plastic tab that is used for the passage of inflated hose.Valve 23 is between two that form liner.Along with a kind of filling medium, preferably air enters charge valve 23, and chamber in the liner 10 and plate stick out around article A.Inside opening 16,17 and 21 allows gas panels 11, end chamber 14, side chamber 18 and chamber 20, top at an easy rate below and walk around the end and the sidepiece of article and cross over top curved.In addition, for the protection of wanting is provided, not necessarily to be full of air to liner fully.

In another kind of embodiment, promptly person shown in Fig. 3～Fig. 5 provides an inflatable packaging cushion 100 of being made by two thermoplastic materials, and these sheets are heat-sealed at weld part 113 places around its neighboring 112 and lump together.In this embodiment, liner has two to be used for connecting band 119 that a pair of base plate 111 is held in place.The part similarity of the embodiment of this embodiment shown in Fig. 3～Fig. 5 and Fig. 1～Fig. 2 is, it comprises through end chamber 114 and end chamber that air by-pass passage is connected in base plate 111 and is connected in side chamber 118 with the same manner.This embodiment comprise with the recess 115 of those same mode work of Fig. 1～Fig. 2.As shown in the figure, connecting band 119 is positioned at the sidepiece of base plate.Be provided with its edge's involution and with inside opening 16 and 17 corresponding inside openings 116 and 117.Also be provided with charge valve 123.

Another embodiment of the present invention is not as comparatively being clearly shown that the person in Fig. 3 and Fig. 4, the top inflatable chamber is replaced single inflatable chamber 120, and the latter covers the main portion at article top at least.Chamber, inflatable top depicted in figure 4 120 has an inside opening 121 in the middle, and the latter is formed by heat sealing weld part 123.Opening 122 is used for holding chamber 120 and avoids too heaving.What extend internally from weld part 123 is the part 125 of every thermoplastic material keeping when this liner is cropped.This part is suitable for thin type elongate articles 124, and for example the hard disk drive of computing machine is held in place.As shown in Figure 4, the weld line 113 that forms inside opening 122 is in its inner edge of walking around radius punishment and splits at each angle, so that relax by the caused any stress of article with this opening mooring.

At work, inflatable chamber designs at the article with concrete size and is inflated and places around the article, puts into then in chest or the box so that shipment.

The present invention should apply to the transportation and the carrying of any frangible commodity, particularly electronic machine, computing machine or other equipment, can protect all sides and its several times of energy repeated usage of product with a single inflatable cushion.

Described the present invention in detail with reference to most preferred embodiment and work thereof by special, but be noted that can realize within the spirit and scope of the present invention changing, the substituting of modification and equivalent.

Claims

1. inflatable packaging cushion that flexible material is made is suitable for the neighboring that charged into filling medium at least in part and have the shape and size that adapt to packing container, and it comprises:

Described liner has at least one inside opening that can admit products to be packaged, causes the side of described article to be surrounded fully through passage and interconnective inflatable end chamber, a pair of inflatable side chamber by a pair of;

The connecting band that a pair of inflatable base plate that is connected in each described end plate is held in place these base plates when at least one is arranged in that being connected of described inside opening, described base plate was inflated with the described liner of box lunch;

One group of recess, they extend from the periphery of described inside opening to described recess, define the wedge-shaped part as the part in described side chamber, and described wedge-shaped part can enter with the sidepiece of described article and contact, the zone that is used for the upset of this wedge-shaped part is defined between recess and the periphery

Described wedge-shaped part is suitable for automatically overturning around a straight line that extends between two recess in succession substantially at this inflatable packaging cushion aeration period, so that change the size and dimension of each inside opening, described inside opening is surrounded fully by described wedge-shaped part;

At least one inside opening between each described base plate and described end chamber extends with the bottom that promotes described liner to walk around described article; And

Be used at least in part filling medium being charged into the filling mechanism of described liner.

2. inflatable packaging cushion according to claim 1, wherein said liner comprise that a pair of its neighboring involution is together to form the overlapping thermal plasticity slice of described liner.

3. inflatable packaging cushion according to claim 1, wherein said filling mechanism are single self sealss charge valves.

4. inflatable packaging cushion according to claim 1, it has many connecting bands.

5. inflatable packaging cushion according to claim 1 comprises that also at least one is connected in the chamber, top in described end chamber.

6. inflatable packaging cushion according to claim 1 comprises that also the main portion at least that covers described article also has the chamber, top of the inside opening that is defined by weld part therein.

7. inflatable packaging cushion according to claim 6, also comprise described liner from the extend internally part of the periphery that enters described inside opening of described weld part, so that define the mechanism that is used for keeping the thin type article.

8. inflatable packaging cushion according to claim 1, wherein said filling medium is an air.

9. inflatable packaging cushion that the flexible thermoplastic material makes is suitable for the neighboring that charges into air at least in part and have the shape and size that adapt to packing container, and it comprises:

Described liner has a pair of its neighboring involution together to form the overlapping thermal plasticity slice of described liner, and have the inside opening that at least one can admit products to be packaged, cause the side of described article to be surrounded fully through passage and interconnective inflatable end chamber, a pair of inflatable side chamber by a pair of;

Described wedge-shaped part is suitable for automatically overturning to change the size and dimension of each inside opening around a straight line that extends between two recess in succession basically at this inflatable packaging cushion aeration period, and described inside opening is surrounded fully by described wedge-shaped part;

At least one inside opening between each described base plate and described end chamber extends with the bottom that promotes described liner to walk around described article;

At least one inside opening between each described base plate and described end plate;

At least one is connected in described end chamber and has the chamber, inflatable top of at least one inside opening between described at least one chamber, top and described end chamber; And

One is used for charging into the single self sealss charge valve of air at least in part described liner.

10. inflatable packaging cushion according to claim 9 comprises that also the main portion at least that covers described article also has the chamber, top of the inside opening that is defined by weld part therein.

11. inflatable packaging cushion according to claim 10, also comprise described liner from the extend internally part of the periphery that enters described inside opening of described weld part, so that define the mechanism that is used for keeping the thin type article.