CN1032799C

CN1032799C - Improved pleated wrapper

Info

Publication number: CN1032799C
Application number: CN 93103152
Authority: CN
Inventors: 吉尔伯特·卡佩; 阿其瓦·布齐伯格
Original assignee: Wrapco International BV
Current assignee: Wrapco International BV
Priority date: 1992-03-27
Filing date: 1993-03-26
Publication date: 1996-09-18
Anticipated expiration: 2013-03-26
Also published as: MX9301731A; CN1077173A

Abstract

A container for various foods including food is prepared from a piece of plicated sheet folding thereon to form a small pocket with pocket opening. Pulling down the corner of the small pocket and compelling the side edge of the pocket opening closed can enlarge the volume of the container. In another modification, the small pocket is formed by a first part, and a plicated sheet is expanded around the first part to form a cover.

Description

Improved pleated packing material

The present invention relates to a kind of improved pleated packing material, more specifically say to relate to a kind of packing material of making by the sheeting pleating or that part is pleating that folds in basis on one's body.

US Patent NO.4,795,648 have described the packing material that is used for various complex article, and it is formed by pleating sheeting.Packing material can be around object developing to form a self-enclosed packing.Other relevant application has US687, and 381, US687,384, US702,265, US752,866.In these applications, described the improvement of this packing material and the device of making pleating sheet material.At present, a problem of this class packing material is that they more are applicable to have stable or the relatively-stationary object of profile, but is not suitable for the several article or the food of random distribution, as French fried food or chicken nugget.At application S.N.702, in 265, attempt to overcome this problem, method is one to be attached on the not pleating sheet material of being made by the rigidity thick material by pleating fine sheet form packing material.Certainly because this packing material is to be made by two kinds of different materials, so it is difficult to make and handle.

Above-mentioned defective in view of prior art an object of the present invention is to provide a kind of packing material, and it is applicable to shape uncertain one or more article, particularly food.

A present invention also purpose provides a kind of by thin, packing material flexible, that cheap sheet material is made.

A present invention also purpose provides a kind of packing material that has sack, closes naturally so that the heat protection to be provided with packing material expansion sack.

A packing material according to the present invention is to be formed by a pleated sheeting, and this sheeting laterally is folded with respect to pleat on itself, and to form a pouch, pleat is along pouch sidewall longitudinal extension.Behind the pouch filled with articles (as French fried food, chicken nugget etc.), two inferior horns can be extended to form an osed top container.In another embodiment, the pleating part of the sheet material of expansion is around a pouch.

From describe below, can clearlyer find out other advantage of the present invention and purpose.

Fig. 1 is the transparent view according to a pouch of the present invention.

Figure 1A is a cutaway view, shows to be used for pleated sheet material of the present invention.

Fig. 2 is a transparent view, shows another embodiment of pouch shown in Figure 1.

Fig. 2 A is the cutaway view of pouch shown in Figure 2.

Fig. 3 shows pouch shown in Figure 1, and it is in closed condition.

Fig. 4 shows the pouch that is in another kind of closed condition shown in Figure 1.

Fig. 5 and 6 shows the pouch shown in Figure 1 of filling French fried food, is in respectively and closes and open mode.

Fig. 6 A and 6B show the other method of opening pouch shown in Figure 2, to form a service basket.

Fig. 7,8 and 9 show another embodiment of the present invention, are in pleating and closed condition, and the open mode after using.

Figure 10 shows the another embodiment of the present invention that is in open mode.

Figure 11 and 12 shows the another embodiment of the present invention that is in the opening and closing state.

Figure 13 and 14 shows the another embodiment of the present invention that is in the opening and closing state.

Figure 15 shows another embodiment that is applicable to popcorn.

Figure 16 shows the corn back embodiment shown in Figure 15 that pops.

Figure 17 shows the bag that is opened shown in Figure 16.

The present invention relates to a kind of container or storage of being made by pleating sheet material, described pleating sheet material is by preferably forming by the parallel folding asymmetric pleat that limits.Shown in Figure 1A, the pleating sheet material 100 of a representative type is the part 100A that have width A and B respectively by two, and 100B forms, and width A is greater than width B.By adopting adhesives or adhesive tape sheet material is fixed perpendicular to the two edges of the pleat of being beaten.This pleated sheet material is disclosed in US Patent NO.4, in 795,648.At US Patent NO.4, in 795,648, a packing material only is to be made by a fine sheet that has planar rectangular.

In the embodiment in figure 1, adopted one with Figure 1A in sheet material 100 similar pleating sheet materials 101, it is folded mutually along a broken line 1 perpendicular to pleat 3.Bonding mutually then, welding or fixing two relative edge's edge 4,5 of sheet material otherwise are to form band dual-side, the pouch of a closed bottom 8 and a sack of opening 10.Along the sack of opening 10, pleat 3 has non-breathing zone 7, in order to fix these pleats as mentioned above.

Sheet material 101 for example can be made with the paper that is covered with plastics (as polyethylene).Importantly, pouch shown in Figure 1 can be launched into one of two kinds of shapes.In a kind of shape, can draw back two bights 9 with expansion bottom 8, and the roughly semicircular in shape shown in forming.Importantly the sidewall of pouch is pressed against and closes sack 10 together, as shown in Figure 3.Can be not just so side that can bag is placed on bag on the horizontal surface tolerant overflowing in it.In addition, Dai inside will roughly be closed and guarantee that tolerant in it can not cool off.Yet between sidewall, still have enough spaces to allow ventilation.Fig. 5 and 6 shows the application of pouch, for example is used to store French fried food.In general, at first French fried food is put into by sack 10.In this step, avoid the operator to point and depend on ratio A/B by the thickness of the sidewall of pouch scald (if fried food is too warm) sidewall.If this ratio is less than 2, the sidewall of pouch just constitutes by one to three layer.If this ratio is greater than 2, so several inverted pleats add, and wall constitutes by three to five layers like this.

In case pouch is filled, just can draw back two bight 9, make pleat 3 along the bottom 8 the expansion.The extension of pleat has increased the volume of pouch, thereby allows French fried food to be positioned at it as shown in Figure 6.The sack of pouch is also closed to keep heat simultaneously.

Ratio A/B also controls the size and dimension of the pouch that is expanded shape.If A/B 〉=2, the angle between the side 4 and 5 is less than 180 °.

If ratio A/B less (as 1.5), and if the length of pouch (29,30) and width near equating, will increase along with the angle between the expansion side 4 and 5 of pouch so and above 180 °, as shown in Figure 4.Yet the skew of pouch side still makes sack 10 close, and drops out so can prevent the tolerant of pouch.Certainly, a user can easily insert sack 10 with finger, and arbitrarily takes out French fried food.

Fig. 2 shows a pouch that is similar to Fig. 1, and difference is that its bottom 2 is to form by three pleated sheets 101 (with 1A, shown in 1B and the 1C), so that form a supporting support sheet 8A.The advantage of this embodiment is to launch or draw back bight 9 when closing pouch when side direction, and support sheet 8A stretches out and forms a relative more neat bottom surface, so that make pouch remain on erectility (as shown in Figure 4).In this configuration, have tolerant pouch and can keep stable.In use, if necessary, can slightly open pouch by tearing sidewall to form an easier opening.Clearly, can otherwise form the pouch shown in Fig. 1 and 2.

In Fig. 6 A, show the method that another kind is opened pouch shown in Figure 2.In the method, pleat 3A is fixed with unstable viscose glue at regional 7A.Also pleat is fixed along pleat region 8A in the bottom.Fill and close pouch with the same way as shown in Fig. 5 and 6.Yet, before use, pouch is opened by drawing back top bight 9A.This move makes pleat open at regional 7A, thereby allows pouch to open and form a service basket.

In the embodiment shown in fig. 7, shown sheet material has pleating and part phozy (13,14).Along a line sheet material is folded into perpendicular to pleat 3 two-layer, and will be the edge 15 of pleating part be not fixed together to form an incomplete pouch.

One product is put into imperfect pouch, launch pleating part around imperfect pouch then.The shape of pleating part also depends on height 17, the length of pleating part and ratio A/B.If necessary, the height of not pleating part 13 can be different from height 17.An advantage of this configuration is in order to take out the product in the pouch, only need partly to open pleating part, as shown in Figure 9.

In the remodeling shown in Figure 100, two edges 19,20 of not pleating part 18 are fixed together then can be by the pouch of pleating part 21 coverings to form one.

In the another kind of remodeling of the present invention shown in Figure 11, the not pleating part 14 among Fig. 7 is replaced by pleating part 22, and it has along side 24, the pleat that side 25A and bottom 25 are fixed.Pleating as shown in the figure part 23 is attached on the part 22.Two

parts

22,23 can be made by different materials.For example, available a kind of thermal insulation material is made part 24, makes it to form the shape of a pouch by one or more position line 25.Select as another kind, pleating part 22 can be by making so that better thermal insulation to be provided than part 23 more stacked pleats.By this way, can shown in Figure 11 and 12, open and close heat-insulating pouch.

In the embodiment shown in Figure 11 and 12, the pleat of part 22 all is fixed at top and bottom, and they are not opened when around part 22 deploying portion 23 like this.

In the embodiment shown in Figure 13 and 14, form part 26 in such a way and promptly can open pleat at least in part, to form Double bottom packing shown in Figure 14.Best, form the border 27 of part 26 at an angle, to allow part 28 more closely around part 26 packings.

In Figure 15-17, show the embodiment of the invention that is applicable to the microwave popcorn.In this embodiment, one and the similar pouch 120 of pouch shown in Figure 1 are provided.One or two inside face along sidewall 118,119 is provided with an adhesive tape 112 to this pouch at its sack 111 places.Below this adhesive tape, be provided with one group along the linearly extended partial cut-out 113 that is parallel to edge 121 at sidewall 118,119.

Use pouch 120 as described below.At first as shown in figure 15 specific corn kernel 110 is put into pouch 120, then with adhesive tape 112 sealing pouches.The pouch that will be full of corn kernel then is transported to the shop to sell to client.

During use, client takes out one and has the pouch of corn and put it in the micro-wave oven, and corn kernel is heated to pop like this.In this process, just force the pouch expansion by the corn that pleat is opened pop as shown in figure 16.After in micro-wave oven, taking out pouch, open it by separating its top 122, as shown in figure 17 along otch 113.

Clearly, in not departing from claim institute restricted portion, can make a large amount of remodeling to the present invention.

Claims

1. container comprises:

A pleated fine sheet, described sheet material is made by flexible material and is had first group of opposed edges and second group by the one group of opposed edges that symmetrical fold limits that forms pleat, described pleat is fixed along first group of edge, it is characterized in that described sheet material is folding along the imaginary line with described pleat quadrature, described second group of edge is fixed together to form a pouch.

2. container as claimed in claim 1 is characterized in that described pouch has two bights and a bottom that is formed by the support sheet, and described support sheet forms an area supported when two bights are drawn back.

3. container as claimed in claim 1 is characterized in that further comprising two bights and sidewall, and described sidewall defines an opening, and described sidewall is closed described opening when described bight is drawn back in opposite direction.

4. container as claimed in claim 1 is characterized in that described pleat is fixed insecurely, is opened into a basket to allow described pouch.

5. container as claimed in claim 1 is characterized in that described pouch has a sack, further comprises the sealing arrangement that seals described pouch along described sack.

6. container as claimed in claim 5 is characterized in that further comprising the one group of partial cut-out that is formed on described little sack, and wherein a part of described pouch can separate to open the pouch after the sealing along described partial cut-out.

7. container comprises:

One first, it forms one and is used for the pouch of object and has first's side; With

One second portion that forms by pleating sheet material, it has common parallel pleat folding on itself, and have a second portion side that is fixed on the described first side, it is characterized in that when described pleat is opened described second portion is set up and is configured to define the closure member of described pouch.

8. container as claimed in claim 7 is characterized in that described second portion launches around described first, is generally circular cover to form one.

9. container as claimed in claim 7 is characterized in that described first is formed by first's sheet material, and this sheet material is folding and have an osed top side on itself.

10. container as claimed in claim 7 is characterized in that on the described first sheet material pleated.

11. container as claimed in claim 7 is characterized in that described first sheet material is not pleated.

12. container as claimed in claim 7 is characterized in that described first sheet material has two osed top sides.

13. container as claimed in claim 7 is characterized in that described container has a side of opening that is attached on the described second portion.

14. container as claimed in claim 7 is characterized in that described first sheet material is formed with a pleat and a bottom, described pleat is fixed on the bottom.

15. a method that forms a container comprises:

A pleating sheet material that is formed with pleat is provided, and described pleat is fixed along the edge of two sheet materials;

Along one with the folding described pleated sheet material of the imaginary line of described pleat quadrature, with the pleated sheet that forms a band angle and

The side of fixing described pleated sheet; It is characterized in that to expand described container by separating described angle.

16. method as claimed in claim 15 is characterized in that described pleated sheet material is folded three times, has the bottom of supportting sheet with formation.

17. method as claimed in claim 16 is characterized in that an area supported is formed on the bottom of described band support sheet when described angle is separated.