JP2010524781A - Container, composite with ring, foil and lid, preliminary composite therefor, and method for producing composite for container - Google Patents

Abstract

  This invention comprises a body (2) having a ring (3) defining an opening, a foil (4) attached to the ring (3) and closing the opening, covering the foil (4) and connected to the ring (3) The ring and the lid are elastically connected, the foil is attached to the ring in an elastic connection between the ring and the lid, the container is attached to the ring and the ring; A foil that closes the opening; and a lid that covers the foil and is connected to the ring, wherein the ring and the lid are elastically connected, and the foil is attached to the ring in an elastic connection between the ring and the lid; The present invention relates to a composite, and a preliminary composite therefor, and a method for producing the same.

Description

  The present invention relates to a container including a main body to which a ring, a foil attached to the ring, and a lid covering the foil are attached. The present invention also includes a composite including a ring, a foil, and a lid, the foil being attached to the ring, a main body, a foil, and a lid, wherein the foil is not attached to the ring, and The present invention relates to a method of manufacturing a composite including a ring, a lid, and a foil attached to the ring.

  Containers according to the present invention should have the best seal for the contents and use under conditions where the deterioration of the contents is accelerated when in open contact with the contents of the container. is there. The body therefore has a ring defining an opening, which is closed by a foil attached to the container. The foil can be peeled off using a foil knob. The container further has a metal lid that covers the foil. As such, the lid protects the foil from unwanted breakage. However, the container further prevents unauthorized opening and reduces the risk of unwanted contaminants on the contents of the container.

  Such a container in one form comprises a foil attached to an attachment formed between the curl portion of the ring and the curl portion of the container body. This type of container is called a PAL container.

  Other types of containers include a peelable foil that seals the horizontal ring. The lid often closes on the ring from above the foil and is often provided with stop means (annular beads or indentations) to avoid unwanted removal of the lid from the ring. Such containers are often referred to as PALOS containers.

  Other types of containers include a foil that can seal and peel the ring, and a plastic lid or cap closes over the foil and is connected to the seam of the container. Such containers are often referred to as easy-open containers.

  It will be appreciated that PAL containers require tools to make the contents of the container available. PAL containers are best resealable and have a high safety against unwanted contaminants on the contents of the container. However, the manufacturing cost of PAL containers is relatively high.

  PALOS containers also require tools to break the foil and make the contents of the container available. PALOS containers have similar safety, although less optimal resealing. Manufacturing costs are much higher than that of PAL containers.

  The container has optimal opening characteristics by tearing off the foil using a foil tab. The container can only be resealed by using an additional plastic cap that closes the top of the ring and is connected to the seam of the body. Although safety is reduced, manufacturing costs are relatively low.

An object of the present invention is to provide a container having the best opening characteristics similar to a container that can be peeled off. In addition, resealability should be best and manufacturing costs should be relatively low.

  The present invention comprises a body having a ring defining an opening, a foil attached to the ring and closing the opening, and a lid covering the foil and connected to the ring, the ring and the lid being elastically connected, The foil provides a container that is attached to the ring at the elastic connection between the ring and the lid.

  The gist of the present invention comprises a ring, a lid, and a foil sandwiched between the ring and the lid, and has an elastic connection to each other, thereby elastically holding the foil between the ring and the lid To form a pre-complex. The foil exists between the lid and the ring and has a sealing material so that the foil is attached to the ring by applying heat while being elastically pressed and arranged.

  Thus, considering the PALOS container, the foil is no longer spliced between the curl portion of the ring and the curl portion of the body, thus reducing the material of the foil and reducing the thickness of the foil (less than 100 μm, more specifically 70 μm) is used. At the same time, it is necessary to reduce the foil material due to the smaller diameter. The material reduction is estimated at about 10%.

  Furthermore, in elastic connections, the size of the material is less important, so the ring and lid can be made from a thinner material. Finally, due to the elastic connection between the ring and the lid, the foil is held between the ring and the lid in the preliminary composite, which can be subjected to a heat treatment using a furnace. Thus, it is not necessary to use a special sealing device that only temporarily contacts the ring and / or lid at the location where the foil is attached to the ring by heating. Therefore, the production speed can be improved while using a general apparatus.

  According to a preferred embodiment, the elastic connection has a contact area with an angle of 45-100 °, preferably 45-90 °, more preferably 75-90 ° with respect to the axial direction of the container. By selecting a contact area in the range 45-100 °, preferably in the range 45-90 °, more preferably between 75-90 ° with respect to the (horizontal) plane defined by the ring, from the elastic connection Less force is needed to remove the lid. This is because only a force slightly greater than the frictional force should be applied. The larger the contact angle, the smaller the normal force friction for the elastic connection to be offset. At an angle of 90 °, the normal force of the elastic connection in the direction of removing the lid from the ring is very small, if any. Under such circumstances, only the frictional force is experienced by the consumer when removing the lid from the ring. The elastic force required for the elastic connection may be due to the lid part, the ring part or both parts. Preferably both parts are elastic so that the dimensions and size of these parts are less important.

  Elastic properties in the elastic part of the lid and / or ring are obtained by deforming those parts to 0.2% of the yield point.

In order to best hold the foil between the ring and the lid, it is preferred that the resilient connection has a surface pressure in the range of 600-1300 N / cm ² , preferably 700-1200 N / cm ² . Thereby, under practical conditions, the elastic connection is compatible with manufacturing, handling and user requirements, and unwanted removal of the lid from the ring is substantially avoided.

  In one embodiment according to the present invention, in the outward radial direction, the lid is on the inner side, the ring is on the outer side, and the foil is inserted between them so that the lid is the opening of the ring. Exists within.

  In other embodiments, the lid closes over the opening in the ring. Thus, in the outward radial direction, the ring component connected to the foil is on the inner side, the corresponding lid component is on the outer side, and the foil is in between.

  Another aspect of the present invention includes a ring, a foil attached to the ring and closing the opening, a lid covering the foil and connected to the ring, the ring and the lid being elastically connected, and the foil being a ring Related to the composite attached to the ring in an elastic connection with the lid.

  Another aspect of the present invention relates to a pre-composite having a foil formed by a ring and a lid and elastically connected between the ring and the lid.

  Finally, the present invention includes the steps of i) forming a pre-composite by elastically connecting the foil between the ring and the lid, and ii) attaching the pre-composite to the ring to the ring. And a step of subjecting the composite to a heat treatment.

  The invention described above is based on the insight that a pre-composite can be formed by inserting a foil between the ring and the lid using an elastic connection. This preform is then subjected to a heat treatment (preferably at a heat treatment temperature between 90 and 150 ° depending on the sealing material used). Thus, no additional equipment or tools are needed to hold the pre-composite during the minimum time of heating to attach the foil to the ring.

  Obviously, when forming the pre-composite, the foil is first placed on the ring or placed on the lid, and then the lid or ring is placed respectively to form an elastic connection.

  When placing the foil, the foil may remain on the ring or lid by gravity. If not applicable, the foil may be placed using a clamping force or magnetic force.

  The mentioned or other features of the composite, pre-composite, container and method of manufacture thereof are given for illustrative purposes only and refer to some embodiments that are not intended to limit the invention in any way. Will be further described and illustrated. In the description, reference is made to the following figure.

FIG. 4 shows a container according to the invention. It is a figure explaining the manufacturing step for manufacture of the composite_body | complex according to this invention. It is a figure explaining the manufacturing step for manufacture of the composite_body | complex according to this invention. It is a figure explaining the manufacturing step for manufacture of the composite_body | complex according to this invention. It is a figure which shows V of FIG. 4 in detail to a large scale. It is a figure which shows VI of FIG. 5 in detail to a large scale. FIG. 5 shows in cross section another manufacturing step for the manufacture of another composite according to the invention. FIG. 5 shows in cross section another manufacturing step for the manufacture of another composite according to the invention. FIG. 5 shows in cross section another manufacturing step for the manufacture of another composite according to the invention. FIG. 10 shows an alternative means for the manufacturing steps shown in FIGS. FIG. 10 shows an alternative means for the manufacturing steps shown in FIGS. FIG. 10 shows an alternative means for the manufacturing steps shown in FIGS.

  FIG. 1 shows a container 1 according to the invention. The container 1 includes a main body 2 and a ring 3 joined to the main body 2. The foil 4 is attached to the ring and includes a knob 5 for removing the foil 4 and making the contents of the container 1 available through an opening defined by the ring 3. The container 1 further comprises a lid 6 covering the foil (if present) and connected to the ring 3.

  2 to 4 show a method of manufacturing the composite body 7 including the ring 3, the foil 4, and the lid 6.

  The ring 3 is provided with a curled portion 8 for connecting to the container body 2 through a seam. The ring 3 further includes a wall 9 connected to a curved downward ring portion 11 via a horizontal wall 10. The ring portion 11 has a characteristic that is elastic when pressed outward in the radial direction.

The foil 4 has a cup shape having a central panel 12 and an upstanding edge 13.
The lid 6 has a central lid panel 14 and an upright wall 15.

  As shown in FIG. 2, the metal foil 4 is disposed on the lid 6 and is held on the lid 6 using a magnet 16.

  Next, according to the direction of the arrow 17, the lid 6 on which the foil 4 is arranged is pressed against the ring 3, so that the foil 4 having the upright wall 13 is sandwiched between them and fixed. An elastic connection is formed between the ring part 11 having a heel and the slightly elastic wall 15. This preliminary composite 18 comprising the ring 3 and the lid 16 elastically connected with the foil 4 sandwiched therebetween is then subjected to a heat treatment using heat 19. As a result, the upright wall 13 on its outer surface 20 and / or the inner surface 21 of the ring part 11 supplies the seaming material so that the foil is seamed to the ring 3. The heat treatment may be performed in, for example, a furnace heated to 130 ° C., or another heat treatment using other types of radiation may be performed.

  FIG. 5 shows in more detail the composite 7 comprising the ring 3, the lid 6 and the foil 4 present in the elastic connection 22 between the ring part 11 and the lid wall 15. As better represented in FIG. 6, the foil 14 is attached to the ring portion 11 via a seaming material 23. Obviously, the compression force exists in the direction of the arrow 24, whereas the direction in which the lid 6 is removed from the ring 3 is the direction of the arrow 25, and only the frictional force exists, and the elastic compression force does not exist.

  Figures 7, 8 and 9 show another method according to the invention for producing a composite according to the invention.

  FIG. 7 shows another ring 26 having a ring portion 27 that is elastic and bent in the inclined portion of FIG. The foil 28 has an edge 29 at an inclined portion like the ring portion 27. The lid 30 also includes a lid wall 31 having a similar inclination direction. As shown in FIG. 8, the foil 28 is disposed on the lid 30 so that the foil edge 29 and the lid wall 31 are in close contact with each other. Thereafter, according to arrow 32, ring 26 is pressed against the combination of lid 30 and foil 28. Thereby, the preliminary | backup composite_body | complex 33 shown in FIG. 9 is obtained. Obviously, the lid wall 31 and the ring portion 27 are elastic, so that the ring 26 and the lid 30 form an elastic connection with the foil 28 pressed between them.

  By applying heat 19, the sealing material is supplied to the contact surface of the foil edge 29 and / or the ring portion 27, and the foil 28 is attached to the ring portion 27. As a result, a composite body 35 including the ring 26 closed by the lid 30 elastically connected to the ring 26 and having the foil 28 attached thereto is formed.

  The edge 29, the lid wall 31 and the ring part 27 have corresponding inclined parts, and the angle α between the surface 36 passing through the contact area and the horizontal surface of the ring 26 is about 60 ° C.

  10, 11 and 12 show the steps of producing a pre-composite 38 which becomes a composite 39 according to the invention after heat treatment.

  Ring 40 includes an upstanding portion 41 for receiving a foil 42 having a downwardly facing edge 43. The foil 42 is disposed on the ring 40. The preliminary composite 38 is formed by placing a lid 44 having elasticity and a bent annular edge 45 on the ring. The lid 44 is arranged according to the direction of the arrow 46. The lid 44 covers the foil 42 and the ring part 41. A resilient connection 47 is formed. In the furnace, the heat 19 is applied so that the foil 42 is spliced to the ring 40 via the splicing material 48.

  It will be appreciated that the containers and rings according to the present invention may be made of any suitable metallic material such as plated steel. The foil may consist of any suitable metal foil, preferably an aluminum foil that is conventionally coated and optionally coated with a seaming material to seam the foil to the ring.

  Similarly, the lid may preferably be made of a metallic material, but may also be made of a plastic material so long as it is not affected by the heating to seam the foil and ring. It is a matter of the present invention that the lid and ring sandwiching the foil form an elastic connection before and during heating to form the seam between the foil and ring.

  It should be noted that the ring portions 11, 27 and 41 may have a depicted shape that provides a contact surface with the foil and sealing. However, the ring portion may have a curled shape. This shape will be more rigid and will have substantially line contact and sealing with the foil. Furthermore, an elastic connection and a practical seal are obtained.

  The container may also be of any conventional diameter and shape.

Claims (15)

A body having a ring defining an opening;
A foil attached to the ring and closing the opening;
Covering the foil, with a lid connected to the ring,
A container in which the ring and the lid are elastically connected and the foil is attached to the ring in an elastic connection between the ring and the lid.   The elastic connection according to claim 1, wherein the elastic connection has a contact area with an angle of 45-100 °, preferably 45-90 °, more preferably 75-90 ° with respect to a horizontal plane defined by the ring. container.   Container according to claim 1 or 2, wherein the elastic connection is formed by a lid part and a ring part, at least one of which is elastic.   4. A container according to claim 3, wherein the lid part and the ring part are both elastic.   Container according to claim 3 or 4, wherein the elastic part is elastically deformed to 0.2% of the yield point. In resilient connection the surface pressure is 600~1300N / cm ^2, preferably from 700~1200N / cm ^2, the container according to claims 1-5.   The container according to claim 1, wherein the lid is disposed in the opening of the ring.   A container according to claims 1-6, wherein the lid closes over the opening of the ring.   A ring, a foil attached to the ring and closing the opening, and a lid covering the foil and connected to the ring, the ring and the lid being elastically connected, the foil being an elastic connection between the ring and the lid A composite attached to the ring in A method for producing a composite according to claim 9, comprising:
i) forming a pre-composite by elastically connecting a foil between the ring and the lid;
ii) subjecting the pre-composite to a heat treatment to attach the foil to the ring.   The method for producing a composite according to claim 10, wherein the foil is disposed on a ring.   The method for producing a composite according to claim 10, wherein the foil is disposed on the lid.   The manufacturing method of the composite_body | complex of Claim 11 or 12 with which foil is arrange | positioned using the force and / or magnetic force of clamping.   The method for producing a composite according to claim 10, wherein the heat treatment is performed in a furnace.   Pre-composite formed by elastically connecting a foil between the ring and the lid according to step i) of claim 10.

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