AU2016219636B1

AU2016219636B1 - Improved container with two side walls

Info

Publication number: AU2016219636B1
Application number: AU2016219636A
Authority: AU
Inventors: Peter Coleman
Original assignee: Huhtamaki Oyj
Current assignee: Huhtamaki Oyj
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2017-06-15
Anticipated expiration: 2036-08-25
Also published as: RU2017129927A; ES2884122T3; US20180057208A1; EP3287380A1; EP3287380B1; MY184603A; RU2752436C2; RU2017129927A3; CN107777044B; CN107777044A

Abstract

IMPROVED CONTAINER WITH TWO SIDE WALLS The present invention relates to a container (1) comprising a bottom (2) at the lower end of an inner sidewall (7) and an outer sidewall (4), which is attached to the outer circumference (3.1) of the inner sidewall (7), wherein the inner- and/or the outer sidewall comprises an embossed shaping, wherein an adhesive connection is provided between the inner sidewall (7) and the outer sidewall (4).

Description

ο (N σ^ ο m Ό σ^ (Ν Ό Ο (Ν 1

IMPROVED CONTAINER WITH TWO SIDE WALLS

[0001] The present invention relates to a container comprising a bottom at the lower end of an inner sidewall and an outer sidewall, which is attached to the outer circumference of the inner sidewall, wherein the inner- and/or the outer sidewall comprises an embossed shaping, wherein an adhesive connection is provided between the inner sidewall and the outer sidewall.

[0002] Such containers are for example known from the state of the art for example WO 2011/023401 A1 or WO 2011/023400 Al, EP 237 1723 Al, EP 2540635 A1 or EP 2540643 Al. The containers described in these publications have however the deficiency that there is a gap between the outer sidewall and the inner sidewall and/or that additional means is needed to stack the containers properly and/or that the staking means can be improved.

[0003] It is therefore the objective of the present invention to at least substantially address the deficiencies of the state of the art or to at least provide at least one useful alternative.

[0004] In a first aspect the present invention provides a container comprising a bottom at the lower end of an inner sidewall and an outer sidewall, which is attached to the outer circumference of the inner sidewall, wherein the outer sidewall comprises a multitude of embossed shapings and do not extend over the entire length of the outer sidewall so that a flat ring is at least provided at the lower end of the outer sidewall, wherein a first adhesive connection is provided between the inner sidewall and the flat ring of the outer sidewall, wherein each embossed shaping together with the inner sidewall defines a separate channel, wherein a second adhesive connection is provided on the outer circumference of the inner sidewall and at the lower end of the shaping.

[0005] One or more of the described embodiments of the disclosed has the advantage of increased stability and the de-stacking of two containers is improved.

[0006] The present invention relates to a container. Particularly, the container may be a cup, in which beverages, especially hot beverages such as coffee or tea or food, especially soup, mash or the like can be served. The container is preferably made from paper, thick paper, cardboard, fiber material, plastic material, PLA materials and/or made from renewable and/or biodegradable raw materials or a combination thereof More preferably, the material. AH25(12807828_2):dah

ο (N σ^ ο m Ό σ^ (Ν Ό Ο (Ν particularly the material from which the side walls are made, is plastically deformable, for example embossable. All parts of the inventive containers are made from this material, whereas the individual parts of the container can be made from different materials. Especially the surface of the parts of the container that are subjected to a liquid and/or vapour are preferably provided with means, especially a coating, an impregnation, a firm or the like, which makes these parts at least temporarily resistant against for example humidity, water, aqueous solutions, oil and/or fat or a combination thereof Preferably the above-mentioned means are also heat-sealable.

[0007] The container according to the present invention comprises an inner side wall, which is preferably conically shaped and which more preferably has at its upper end a bended or rolled rim. The sidewall is preferably made from a flat segment, which is subsequently formed, preferably rolled, more preferably around a mandrel, into its, for example conical, shape. Preferably at its lower end, the sidewall comprises a bottom in order to close the container at the base. The bottom is preferably a separate part which is attached, more preferably glued and/or heat-sealed to the lower end of the sidewall of the container. The sidewall and the base define the filling volume which can be filled with a product. According to the present invention, the inner sidewall may comprise an embossed shaping, preferably a stacking means to assure that the containers are easily separated from each other when being stacked, i.e. destacked. Preferably, this stacking means extends around the entire inner circumference of the inner sidewall and/or extends into the container.

[0008] According to the present invention, the container comprises an outer side wall, which is attached to the outer circumference of the inner side wall. This outer sidewall preferably extends around the entire circumference of the inner sidewall and more preferably extends essentially along the entire height of the inner side wall, particularly from the upper rim until the bottom. The second sidewall may comprise one or more embossed shaping(s).

[0009] The first and second sidewall are connected to each other by an adhesive connection, which is, according to a preferred embodiment the present invention provided in the vicinity of an embossed shaping in the first and/or second sidewall. The embossed shaping in the first sidewall is preferably a stacking shoulder which preferably extends radially inward into the filling volume. The lower end of the shaping in the second side wall cooperates with the stacking shoulder in the first side wall. Preferably, the adhesive connection is provided in the AH25(12807828_2):dah ο (N S' σ^ o

m Ό σ^ (N Ό O (N vicinity of the lower end of the shaping in the second sidewall. The adhesive connection is preferably provided by a glue between the first and the second sidewall.

[0010] The adhesive connection may have the advantage of it providing additional rigidity to the first and/or second sidewall in the vicinity of the embossment(s).

[0011] According to a preferred embodiment of the present invention, the adhesive connection is aligned with the embossed shaping, wherein the extension of the adhesive connection parallel to the first sidewall can be equal or different, preferably smaller than the extension of the stacking means in this direction. The adhesive connection can be provided in to parallel strips which extend at least partially along the circumference of the inner sidewall.

[0012] Preferably, the adhesive connection is provided around the entire circumference of the inner sidewall or in one or more circumferential section(s). In case there are two or more circumferential sections, these sections are preferably provided equidistantly and/or at the same height on the outer circumference of the first sidewall.

[0013] Preferably, the outer sidewall, the second sidewall, comprises a multitude of embossed shapings, which extend radially out of the outer surface of the second side walls. These embossments, together with the outer circumference of the inner side wall, can each define a channel which is closed, preferably hermetically closed. Thus, no debris or the like can accumulate in the channels. The entrapped air in the channels is an insulation, so that the surface of the container that comes into contact with the hand of a user is neither too hot nor too cold.

[0014] Furthermore, the outer sidewall can be designed such that the lower end of the shaping does not extend until the lower end of the outer side wall, but is distant from the lower end of the outer side wall. Thus, at its lower end, the outer sidewall comprises a flat portion, preferably a fiat ring, which extends around the entire circumference of the inner sidewall and which can be partially or entirely attached to the outer surface of the inner side wall.

[0015] Preferably, the lower end of the shaping is utilized as a stacking means, which, when two cups are stacked together, rests on the stacking means at the inner sidewall of another cup.

[0016] Preferably, the adhesive connection is provided in the lower end of this shaping. AH25( 12807828 2):dah ο ο (Ν δ- σ^ ο m σ^ (Ν Ό Ο (Ν [0017] Due to the utilization of the lower end of the embossments as stacking means, no additional stacking means have to be provided but may be optional. Thus, the cup according to this preferred embodiment is easily produced. [0018] Preferably, the upper end of the shaping is also distant from the upper end of the outer side wall. Consequently, preferably a flat ring, which extends around the entire outer surface of the inner sidewall, is also provided at the upper end of the outer side wall. This flat ring can be connected, for example glued and/or sealed to the outer circumference of the inner side wall. [0019] The lower end of the shaping, particularly the surface that is in contact with the stacking means at the inner sidewall of a second container is preferably provided in an angle of less than 120° and preferably more than 80°. This assures that the cups can be denested easily.

Preferred embodiments of the invention will be described hereinafter, by way of examples only, with reference to the accompanying drawings, wherein: [0020] Figure 1 shows two cups stacked together. [0021] Figure 2 shows a cut through the cups according to figure 1. [0022] Figures 3 and 4 show details of the shapings and the stacking means and the adhesive connection. [0023] Figures 1 and show a container, here a paper- or cardboard-cup. This container 1 comprises a conical inner sidewall 3, which has at its lower end a bottom 2. This bottom 2 is AH25(12807828_2):dah

r- ο (N σ^ ο m Ό σ^ (Ν Ό Ο (Ν 4a preferably attached, particularly glued or sealed to the inner sidewall 3 of container 1. The inner sidewall and the bottom define the filling volume of the container. The inner sidewall further comprises a shaping 7, here an embossment 7, which extends out of the inner surface of the inner sidewall 1 into the filling volume and which is a stacking means. The embossment 7 preferably extends around the entire inner circumference of the inner sidewall 2. At its upper end 3.3, the inner sidewall preferably comprises a rim 8, which is more preferably bended or rolled. [0024] The cup furthermore comprises a second sidewall 4, the outer side wall 4, which is also conical and which extends around the entire circumference of the outer circumference 3.1 of the inner side wall 3. The length L of the outer sidewall is preferably chosen such that it extends from the upper end 3.3 of the inner side wall, preferably from rim 8, until essentially the bottom 2 of the container 1. The outer sidewall may comprise a multitude of shapings, which each extend radially away from the inner sidewall 3 of container 1 and/or away from the inner surface 4.3 of the outer sidewall 4. Preferably, the shapings 5 each do not extend over the entire length L of the outer side wall. Particularly, the lower end 5.1 of the shaping 5 is distant from the lower AH25(12807828_2):dah Η Ο (Ν IDJ) ΙΟ (Ν m Ό σ^ (Ν Ό Ο (Ν end 4.1 of the outer side wall. Thus, the outer sidewall preferably comprises at its lower end a flat ring, which extends around the entire circumference of the inner side wall 3. This ring is preferably used to connect, preferably glue and/or seal the outer sidewall 4 to the inner sidewall 3. The embossments 5 together with the outer circumference of the inner sidewall 3 each define a separate channel 6, in which a gas, preferably air, is entrapped. Preferably, these channels are closed, more preferably hermetically closed. The gas inside the channels 6 is a heat/cold-insulation. Preferably, the lower end 5.1 of each embossment 5 serves as a stacking means, which cooperates with stacking means 7 of another container, when two containers are stacked. This assures that the stacked cups can be denested easily. Since the flat lower end 4.1 of the outer sidewall extends below the lower end 5.1 of each shaping 5, the lower end 4.1 is also a guidance for the cup during the stacking. The upper end 5.2 of each shaping is preferably also distant from the upper end 4.2. The flat ring of the outer sidewall can be attached to the inner sidewall.

[0026] As can be seen from Figures 3 and 4, an adhesive connection 9, 9.1, 9.2 is provided between the outer circumference of the inner sidewall 3 and the inner circumference of the outer sidewall 4. The adhesive connection 9, 9.1, 9.2 can be provided as an entire ring or as one or more segments of a ring. The adhesive connection 9, 9.1, 9.2 is aligned with the shaping 7, here the stacking shoulder. However, in the present case, the height 1 of the shaping 7 is larger than the extension of the adhesive connection 9, 9.1, 9.2. in this direction. The person skilled in the art understands that the height of the adhesive connection can also be equal or greater than the height of the shaping. As can be seen from Figure 3, there can be more than one adhesive connection 9.1 and 9.2.

[0027] As can be seen from Figure 4, the adhesive connection 9 can also be provided at the lower end 5.1 of the shaping 5. The adhesive connection (9) has the advantage that it provides additional rigidity to the first and/or second sidewall in the vicinity of the embossment(s).

AH25(11675383_1):MSD Ό Ο (Ν bX) (Ν m Ό σ^ (Ν Ό Ο (Ν

List of reference signs: 1 container 2 bottom 3 inner sidewall 3.1 outer circumference of the inner sidewall 3.2 lower end of the inner sidewall 3.3 upper end of the inner sidewall 4 outer sidewall 4.1 lower end of the outer sidewall, flat lower end of the sidewall 4.2 upper end of the outer sidewall, flat upper end of the sidewall 4.3 inner surface of outer sidewall 4.4 outer surface of outer sidewall 5 shaping in the outer sidewall 5.1 lower end of the shaping 5.2 upper end of the shaping 5.3 inner surface of the shaping 6 channel 7 stacking means 8 rim 9 adhesive connection 9.1 adhesive connection 9.2 adhesive connection L Length/height of the outer sidewall L height of the shaping 7

AH25(11675383_1):MSD

Claims

1. A container comprising; an inner sidewall having a lower end and an outer circumference, an outer sidewall having a lower end and a length, a bottom at the lower end of the inner sidewall and at the lower end of the outer sidewall, the bottom being attached to the outer circumference of the inner sidewall; the outer sidewall having a flat ring at the lower end of the outer sidewall; the outer sidewall comprising a multitude of embossed shapings, each embossed shaping extending less than the length of the outer sidewall and having a lower end, wherein a first adhesive connection is provided between the inner sidewall and the flat ring of the outer sidewall, wherein an embossed shaping of the multitude of embossed shapings together with the inner sidewall defines a separate channel and a second adhesive connection is provided on the outer circumference of the inner sidewall and at the lower end of the embossed shaping.

2. A container according to claim 1, wherein, a plurality of embossed shapings form a stacking means.

3. A container according to claim 2, wherein, the second adhesive connection is aligned with the lower end of the embossed shaping.

4. A container according to claims 1 or 2, wherein, the first adhesive connection is provided around the entire inner sidewall outer circumference or as one or more circumferential section(s).

5. A container according to any one of the preceding claims, wherein, the second adhesive connection is provided within the embossed shaping.

6. A container according to any one of the preceding claims, wherein a tight, two dimensional connection is formed between the flat ring at the lower end of the outer sidewall and the outer circumference of inner sidewall.

7. A container according to any one of the preceding claims, wherein, the separate channel is closed.

8. A container according to any one of the preceding claims, wherein, there is a tight connection between a flat upper end of the outer sidewall and the outer circumference of the inner sidewall.

9. A container according to any one of the preceding claims, wherein, the lower end of each embossed shaping is at least partially, provided in an angle (a) of less than 120° with respect to the bottom.

10. A container according to any one of the proceeding claims, wherein the lower end of each shaping is at least partially provided in an angle (a) of more than 80° with respect to the bottom.