Method For Manufacturing A Package

• US 20130300028A1
• Filed: 12/20/2011
• Published: 11/14/2013
• Est. Priority Date: 12/22/2010
• Status: Active Grant

• Current Assignee: Naber Beheer B.v.
• Original Assignee: Naber Beheer B.v.
• Inventors: Naber, Wilhelmus Cornelis Maria
• Granted Patent: US 9,067,347 B2
• Time in Patent Office: Days
• US Class Current: 264/242
• CPC Class Codes: B29C 2045/0063 facing before assembling, i.e. bringing the parts opposite to each other before assembling
• CPC Class Codes: B29C 2045/0065 the parts being interconnected before assembling by a breaking or shearing point
• CPC Class Codes: B29C 45/006 Joining parts moulded in separate cavities
• CPC Class Codes: B29C 45/0081 of objects with parts connected by a thin section, e.g. hinge, tear line
• CPC Class Codes: B29C 65/18 using heated tools
• CPC Class Codes: B29C 65/7841 Holding or clamping means for handling purposes clamping means for the purpose of applying pressure on the parts to be joined, in the area to be joined B29C66/81; work holders in general B25B; devices for holding or positioning work for welding metal B23K37/04
• CPC Class Codes: B29C 66/112 Single lapped joints
• CPC Class Codes: B29C 66/131 Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
• CPC Class Codes: B29C 66/232 said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
• CPC Class Codes: B29C 66/24244 forming a rectangle
• CPC Class Codes: B29C 66/53461 joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
• CPC Class Codes: B29C 66/81422 being convex
• CPC Class Codes: B29C 66/81431 comprising a single cavity, e.g. a groove
• CPC Class Codes: B29C 66/81463 comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
• CPC Class Codes: B65D 2543/00037 Disc closures
• CPC Class Codes: B65D 2543/00194 square or rectangular
• CPC Class Codes: B65D 2543/0024 two pieces, one forming at least the whole skirt, the other forming at least the whole upper part
• CPC Class Codes: B65D 2543/00296 Plastic
• CPC Class Codes: B65D 2543/00324 Lids integrally moulded with the container, or with a connecting piece, and separated therefrom by rupturing the connection before the first use
• CPC Class Codes: B65D 2543/00435 Lids secured to an intermediate ring or like annular member fixed to the container mouth
• CPC Class Codes: B65D 2543/00527 : NO contact
• CPC Class Codes: B65D 2543/00537 : on the outside, or a part turned to the outside of the mouth of the container
• CPC Class Codes: B65D 2543/00629 : Massive bead
• CPC Class Codes: B65D 2543/00685 : Totality
• CPC Class Codes: B65D 2543/0074 : Massive bead
• CPC Class Codes: B65D 2543/00796 : Totality
• CPC Class Codes: B65D 43/0212 : only on the outside, or a part turned to the outside, of the mouth B65D43/0206 takes precedence
• CPC Class Codes: B65D 77/2092 : the means being a part initially broken from the container

Abstract

For the purpose of manufacturing a package, an entirety is provided by means of injection moulding, the entirety including a plastic tray (10) having an open side and a ring-shaped plastic cover rim (20) which is located at the open side of the tray (10), at a circumferential rim of the tray (10), and which surrounds that circumferential rim. The cover rim (20) is connected to the tray (10) by means of a relatively thin plastic film, 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). Furthermore, a piece of cover foil (40) is provided and connected to at least the cover rim (20). Preferably, the cover rim (20) and the tray (10) are adapted to be capable of getting into engagement with each other by means of a snap connection after they do no longer form an integral entirety with each other.

Claims

1. Method for manufacturing a package, wherein an entirety is provided by means of injection moulding, the entirety including a plastic tray having an open side and a ring-shaped plastic cover rim which is located at the open side of the tray, at a circumferential rim of the tray, and which surrounds that circumferential rim, and which is connected to the tray by means of a relatively thin plastic film, wherein the cover rim and the tray are detached from each other by forcing a limited mutual movement of the cover rim and the tray, and wherein a piece of cover foil is provided and is connected to at least the cover rim.

2. The method according to claim 1, wherein the piece of cover foil is connected to at least the cover rim during the mutual movement of the cover rim and the tray.

3. The method according to claim 1, wherein the piece of cover foil is connected to at least the cover rim once the cover rim and the tray are detached from each other and the mutual movement has ended.

4. The method according to claim 1, wherein the mutual movement of the cover rim and the tray is ended when a surface of the cover rim and a circumferential surface of the tray which is located at the open side of the tray are located at a practically equal level.

5. The method according to claim 1, wherein the piece of cover foil is connected to both the tray and the cover rim.

6. The method according to claim 5, wherein a stronger connection is realised between the piece of cover foil and the cover rim than between the piece of cover foil and the tray.

7. The method according to claim 5, wherein a continuous connection is realised along the entire circumference of the tray, at the open side of the tray, and along the entire cover rim.

8. The method according to claim 1, wherein the limited mutual movement of the cover rim and the tray, which is forced for the purpose of detaching the cover rim and the tray from each other, is a linear movement.

9. The method according to claim 1, wherein the cover rim and the tray are formed with components which are adapted to establish a snap connection between the cover rim and the tray in case of a mutual movement of the cover rim and the tray.

10. The method according to claim 9, wherein the mutual movement of the cover rim and the tray is ended with establishing a snap connection between the cover rim and the tray.

11. The method according to claim 9, wherein the cover rim is formed with an inner circumferential surface having a receded portion.

12. The method according to claim 1, wherein the relatively thin film between the tray and the cover rim is formed with interruptions.

13. The method according to claim 1, wherein, for the purpose of manufacturing the entirety of the tray and the cover rim by means of injection moulding, a mould is used in which a cavity for forming the cover rim is in communication with a cavity for forming the tray, through a cavity for forming the relatively thin film, and wherein plastic is supplied only to the cavity for forming the tray during injection moulding.

14. The method according to claim 1, wherein the connection between the piece of cover foil and at least the cover rim is established under the influence of local heat supply.

15. The method according to claim 1, wherein means are applied for supporting at least the cover rim during establishment of the connection between the piece of cover foil and at least the cover rim.

16. The method according to claim 1, wherein material to be packed is placed in the tray before the piece of cover foil is connected to at least the cover rim.