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Title:
PACKAGE, METHOD FOR MANUFACTURING A PACKAGE, AND MOLD FOR APPLICATION FOR THE PURPOSE OF SUCH METHOD
Document Type and Number:
WIPO Patent Application WO/2014/112876
Kind Code:
A4
Abstract:
A package comprises an entirety of a tray (10) having an open side and a ring-shaped cover rim (20) which is located at the open side of the tray (10), at an outer circumferential rim (16) of the tray (10), and which is connected to the tray (10) through a relatively weak breaking portion (30). For the purpose of manufacturing the package, a mold (41) is provided. Also, a sheet (40) is provided and placed in the mold (41), wherein a movement of the sheet (40) is forced in two different directions. The cover rim (20) is formed with an inner ring (21) in which an inward bulge (28) is realized, along at least a portion of the circumference thereof, as an aids in establishing a clamping connection between the cover rim (20) and the tray (10) once the cover rim (20) has been broken away from the tray (10).

Inventors:
NABER WILHELMUS CORNELIS MARIA (NL)
Application Number:
PCT/NL2014/050022
Publication Date:
December 04, 2014
Filing Date:
January 20, 2014
Export Citation:
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Assignee:
NABER BEHEER B V (NL)
International Classes:
B65D77/20; B29C51/30; B29C51/10; B29D22/00; B29L31/00; B29L31/56; B65D43/02
Attorney, Agent or Firm:
DEKKER-GARMS, Alwin Emilie (Pieter Zeemanstraat 57, CR Eindhoven, NL)
Download PDF:
Claims:
AMENDED CLAIMS

received by the International Bureau on 16 October 2014 (16.10.2014)

CLAIMS

1. Method for manufacturing a package (1) comprising an entirety of a tray (10) having an open side (13) and a ring-shaped cover rim (20) which is located at the open side (13) of the tray (10), at an outer circumferential rim (16) of the tray (10), and which is connected to the tray (10) through a relatively weak breaking portion (30), wherein a mold (41) is provided, wherein a sheet (40) is provided and is placed in the mold (41), wherein a movement of the sheet (40) is forced in two different directions for forming the sheet (40) as the package (1) having the tray (10) and the cover rim (20), wherein the sheet (40) is clamped along a ring-shaped portion, wherein a portion of the sheet (40) inward of the ring-shaped portion and a portion of the sheet (40) outward of the ring-shaped portion are moved in the two different directions, and wherein the forming movements of the sheet (40) in the mold (41) as desired are realized by applying pressure differences over the sheet (40) in two different directions in the mold (41).

2. Method according to claim 1, wherein the sheet (40) is forced to perform the movements in the two different directions simultaneously.

3. Method according to claim 1 or 2, wherein the cover rim (20) is formed with an inner ring (21) in which an inward bulge (28) is arranged, along at least a portion of the

circumference thereof.

4. Method according to any of claims 1-3, wherein the mold (41) comprises a number of separate elements (42, 44, 47), including a first forming element (42) having a forming surface (43) which is shaped according to an under surface (17) of the tray (10) and a second forming element (44) having a forming surface (45) which is shaped according to an upper surface (23) of the cover rim (20), wherein the sheet (40) is placed in the mold (41) with the first forming element (42) at one side of the sheet (40) and the second forming element (44) at the other side of the sheet (40), wherein the sheet (40) is clamped between portions of the first forming element (42) and the second forming element (44) facing each other, wherein the first forming element (42) is surrounded by a movably arranged tubular punching knife (47), wherein a movement of the sheet (40) is forced in two opposite directions with respect to the portions of the first forming element (42) and the second forming element (44) facing each other, between which the sheet (40) is clamped, in order to put a first portion of the sheet (40) to a condition in which it contacts the forming surface (43) of the first forming element (42) and thereby constitutes the tray (10), and to put a second portion of the sheet (40) in a condition in which it contacts the forming surface (45) of the second forming element (44) and thereby constitutes the cover rim (20), and wherein the punching knife (47) is moved in the direction of the sheet (40) and is partially pressed in the sheet (40) in order to realize the breaking portion (30) between the tray (10) and the cover rim (20).

5. Method according to claim 4, wherein weaker and less weak portions of the breaking portion (30) are realized by applying a serrated punching knife (47).

6. Method according to claim 4 or 5, wherein openings (31) are realized between the tray (10) and the cover rim (20) at defined places by applying the punching knife (47). 7. Method according to any of claims 4-6, wherein the package (1) is detached from surrounding material of the sheet (40), and wherein the movement of the punching knife (47) in the sheet (40) is carried out simultaneously therewith.

8. Method according to any of claims 1-7, wherein the sheet (40) is heated prior to forming the sheet (40).

9. Method according to any of claims 1-8, wherein a piece of cover foil (60) is provided and is connected to the cover rim (20) for sealing the tray (10). 10. Method according to any of claims 1-8, wherein the cover rim (20) and the tray (10) are detached from each other by forcing a limited mutual movement of the cover rim (20) and the tray (10), wherein the breaking portion (30) is broken, wherein a clamping connection is established between the cover rim (20) and the tray (10), and wherein a piece of cover foil (60) is provided and connected to at least the cover rim (20) for sealing the tray (10).

11. Method according to claim 10, wherein the piece of cover foil (60) is connected to at least the cover rim (20) during the mutual movement of the cover rim (20) and the tray (10).

12. Method according to claim 10 or 11, wherein the mutual movement of the cover rim (20) and the tray (10) is ended when a surface (25) of the cover rim (20) and a circumferential surface (15) of the tray (10) which is located at the open side (13) of the tray (10) are at a practically equal level.

13. Method according to any of claims 10-12, wherein the piece of cover foil (60) is connected to both the tray (10) and the cover rim (20).

14. Method for manufacturing a package (1) comprising an entirety of a tray (10) having an open side (13) and a ring-shaped cover rim (20) which is located at the open side (13) of the tray (10), at an outer circumferential rim (16) of the tray (10), and which is connected to the tray (10) through a relatively weak breaking portion (30), wherein a mold (41) is provided, wherein a sheet (40) is provided and is placed in the mold (41), and wherein the cover rim (20) is formed with an inner ring (21) in which an inward bulge (28) is arranged, along at least a portion of the circumference thereof.

15. Package (1), comprising an entirety of a tray (10) having an open side (13) and a ring- shaped cover rim (20) which is located at the open side (13) of the tray (10), at an outer circumferential rim (16) of the tray (10), and which is connected to the tray (10) through a relatively weak breaking portion (30), which entirety has been formed on the basis of a sheet (40), and wherein the cover rim (20) has an inner ring (21) in which an inward bulge (28) is present, along at least a portion of the circumference thereof.

16. Package (1) according to claim 15, wherein the breaking portion (30) is provided with openings (31).

17. Package (1) according to claim 15 or 16, comprising a piece of cover foil (60) which is connected to the cover rim (20) and seals the tray (10). 18. Package (1) according to claim 17, wherein material is present in the tray (10).

19. Package (1), comprising an entirety of a tray (10) having an open side (13) and a ring- shaped cover rim (20) surrounding the tray (10), at the open side (13) of the tray (10), and which is connected to the tray (10) through a clamping connection, which entirety has been formed on the basis of a sheet (40), wherein the cover rim (20) and the tray (10) are broken away from each other, wherein the cover rim (20) has an inner ring (21) in which an inward bulge (28) is present, along at least a portion of the circumference thereof, and wherein the bulge (28) is situated underneath an outer circumferential rim (16) of the tray (10).

20. Package (1) according to claim 19, comprising a piece of cover foil (60) which is connected to at least the cover rim (20) and seals the tray (10).

21. Package (1) according to claim 20, wherein a surface (25) of the cover rim (20) and a circumferential surface (15) of the tray (10) which is located at the open side (13) of the tray

(10) are at a practically equal level.

22. Package (1) according to claim 20 or 21, wherein the piece of cover foil (60) is connected to both the tray (10) and the cover rim (20).

23. Package (1) according to any of claims 20-22, wherein material is present in the tray (10).

24. Mold (41) for application for the purpose of a method for manufacturing a package (1) comprising an entirety of a tray (10) having an open side (13) and a ring-shaped cover rim

(20) which is located at the open side (13) of the tray (10), at an outer circumferential rim (16) of the tray (10), and which is connected to the tray (10) through a relatively weak breaking portion (30), on the basis of a sheet (40) which is placed in the mold (41), wherein the mold (41) is adapted to allow for a forced movement of the sheet (40) in two different directions, wherein the mold comprises means (42, 44) for clamping the sheet (40) along a ring-shaped portion, and wherein the mold (41) comprises means for applying pressure differences over the sheet (40) in two different directions.

25. Mold (41) according to claim 24, adapted to form the cover rim (20) with an inner ring (21) and arranging an inward bulge (28) therein, along at least a portion of the circumference thereof.

26. Mold (41) according to claim 24 or 25, comprising a number of separate elements (42, 44, 47), including a first forming element (42) having a forming surface (43) which is shaped according to an under surface (17) of the tray (10), and a second forming element (44) having a forming surface (45) which is shaped according to an upper surface (23) of the cover rim (20), each being destined for placement at another side of the sheet (40). 27. Mold (41) according to claim 26, comprising a movably arranged tubular punching knife (47) for surrounding the first forming element (42).

28. Mold (41) according to claim 27, wherein the punching knife (47) is serrated. 29. Mold (41) for application for the purpose of a method for manufacturing a package (1) comprising an entirety of a tray (10) having an open side (13) and a ring-shaped cover rim (20) which is located at the open side (13) of the tray (10), at an outer circumferential rim (16) of the tray (10), and which is connected to the tray (10) through a relatively weak breaking portion (30), on the basis of a sheet (40) which is placed in the mold (41), wherein the mold (41) is adapted to form the cover rim (20) with an inner ring (21) and to arrange an inward bulge (28) therein, along at least a portion of the circumference thereof.