CN101479163A

CN101479163A - Can

Info

Publication number: CN101479163A
Application number: CNA2007800244432A
Authority: CN
Inventors: 沃尔特·博克; 格哈德·施罗尔
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-29
Filing date: 2007-06-28
Publication date: 2009-07-08
Anticipated expiration: 2027-06-28
Also published as: CA2652952A1; CA2652952C; MX2009000240A; CN101479163B; EP2035294B1; AT503831A1; US20090173736A1; BRPI0713982A2; WO2008000013A1; ATE498561T1; JP2009541162A; AT503831B1; DE502007006507D1; PL2035294T3; EP2035294A1; ES2361126T3

Abstract

The invention relates to a can, especially for receiving drinks, comprising an essentially cylindrical casing (1) which is closed on each end thereof by means of a cover plate (2) connected to the casing (1), and a closing element (3) which is provided in a recess of a cover plate (2) in order to be able to open the can in a recloseable manner. The recess of the cover plate (2) is surrounded by a first section (13) of the cover plate (2), said section being in the form of a truncated cone, tapering off towards the inside of the can and extending between a circular bent edge (17) and a circular edge (20) which defines the recess. The closing element (3) has an essentially cylindrical holding section (7) which is inserted into the recess of the cover plate (2) and comprises a peripheral groove (21) which receives the first truncated cone section (13) of the cover plate (2) and is defined towards the outer side of the can by a second projection (2) on which the bent edge (17) is supported. When the can is closed, a screw closure (5) of the closing element (3) is supported on the second projection (8).

Description

Can

Technical field

The present invention relates to a kind of container or can that especially is used for dixie cup, it has by sheet metal seals the substantially cylindrical wall of its top and bottom and inserts in the opening of sheet metal lid and make jar have the packing element of resealable opening, wherein the opening in the sheet metal lid is cut awl and first tapering part that extends surrounds by the sheet metal lid to can inside between the circular flanging of opening and circular edge, and packing element provides the retaining part of substantially cylindrical, and described retaining part inserts the opening of sheet metal lid and has first tapering part of admitting the sheet metal lid and constrain in circumferential groove on the direction that deviates from can by second projection that flanging was resisted against.

Background technology

The Beverages and Canned Food of state-of-the art has the packing element of being done out the tear-off opening form of opening by the user on can.Usually this class opening is again a leak free.Known have multiple other packing element that allows to open and seal up a tin.Yet, be easy to generate substandard products and therefore become the root that problem takes place if these elements are difficult to make and produce in enormous quantities.

U.S. Patent No. 2,687,831A illustrates the packing element of the corresponding holding element of nipping.This class packing element is suitable for fastening and gushs mouthful but can't bear because of the type that is spirally connected and seal power and the moment of torsion that causes.U.S. Patent No. 3,998,354A and 4,327 has put down in writing other and has had the sealing member of insufficient strength among the 842A.

Summary of the invention

An object of the present invention is to provide a kind of can with reclosable packing element, the sealing component structure is simple, cheap for manufacturing cost and be easy to handle.The sealing element is particularly tough and can not hinder depositing and abandoning of can.Especially, can support power and the moment of torsion that the can opening part causes reliably.

According to the present invention, provide a kind of screw-top that under air-tight state, is resisted against the packing element of second projection here.Essence of the present invention aspect is that packing element can be simply and insert the opening of sheet metal lid reliably.Consequently a kind of being connected, if correctly select size, this being connected makes packing element be easy to insert opening relatively, but can guarantee that also element reliably installs.Simultaneously can provide liquid-tight seal, this prevents overflowing of undesired can capacity.

If the screw-top of packing element is pressed against second projection at air-tight state, then can obtain the significantly reliable function of packing element and the viability of structure.When being screwed into screw-top, this will provide location, failure-free end.

If the circumferential groove of retaining part by the first projection constraint in the axial direction, it is especially easy that the installation of can will become, one side retaining part has a supporting shoulder and tapered at another side at groove.So, in a single day packing element inserts opening and just is easy to slip over the edge of opening and can not causes permanent deformation.

Particularly it is to realize by the cooresponding axial width of axial width of giving first tapering part that covers with sheet metal for the circumferential groove of retaining part that the failure-free of packing element is installed.This will eliminate packing element play in the axial direction.If the circumferential groove of retaining part by flanging against second projection be constrained on the direction that deviates from can, be particularly favourable in this case.

Found radially to be adjacent to first tapering part and to be particularly favourable along second tapering part that deviates from the can direction if on the outside of first conical part, be provided with.This will improve elastic effect, provide enough elasticity to damage avoiding when inserting packing element, even if also be like this when using rigid plastic.

From the angle of strength of material,---promptly being close to the edge of lid---is particularly favourable to make opening be arranged in the sheet metal shell prejudicially.This also make the user can be fully with the content in the light can.

If packing element is made of single-piece base section and screw-top, then can obtain a kind of particularly simply design.

Under the situation of Beverages and Canned Food, often require security seal to provide to differentiate can be still keep its original seal or before the possibility of opened mistake.Tear safety cap and can realize this function.Preferably, security seal is the plate portion that its edge forms second projection that flanging was resisted against.As a kind of replacement scheme, when using beverage bottle, also can provide a kind of screw-top with warranty ring (pilfer ring).

If the screw-top of packing element is resisted against down on second projection in off position, then obtain sound design and reliable functioning.This defines location, failure-free end when being screwed into screw-top.

Packing element preferably is made of plastics, especially for example the polyolefin of PE or PP.

Can be stacked by in the sheet metal bottom relative with packing element in the sheet metal lid recess being set, the packing element of another can of shape receivability of described recess can stack first can on described another can.So can form the lamination of can, wherein can is can one folded leans against another on and assurance can laterally not slided or topple, thereby can not make packing element be subjected to excessive load.

Description of drawings

Embodiment with reference to the accompanying drawings further specifies the present invention.

Fig. 1 illustrates the partial cross section according to can of the present invention;

Fig. 2 illustrates the details of Fig. 1.

The specific embodiment

The can of Fig. 1 has cylindrical wall 1, and its top is by sheet metal lid 2 sealings that are provided with packing element 3.Packing element 3 is made of base section 4 and the screw-top 5 that is screwed into base section 4.

Base section 4 comprises that formation ring-shaped cylinder is to the plate 6 of lower extension 7 on it, and described ring-shaped cylinder constitutes retaining parts to lower extension 7.The plate 6 that exceeds retaining part 7 diameters continuously, is referred to as second projection 8 in this article as flange.Below second projection 8, first projection 9 that is similarly annular is set.

Be provided with safety cap in plate 6, this safety cap can be torn by draw ring 11.On the one hand, this provides the additional security measure that prevents to overflow or stained content before opening a tin for the first time, and on the other hand, it allows the user to determine that can is in original-pack situation or had been opened.

Sheet metal lid 2 is made of first tapering part 13 of cutting awl to the can internal direction and extend between circular flanging 17 and circular edge 20 around the marginarium 12 of the opening that inserts packing element 3, and circular edge 20 is borders of opening.First conical part 13 is connected in 14 of second conical part, 14, the second conical parts and combines with another conical part 15 at another flanging 19 places.

Circular edge 20 presses down the groove 21 that is against retaining part 7 presetting load, described groove 21 around periphery from cylindrical between first projection, 9 and second projection 8 to lower extension 7 and form.Circular edge 20 is resisted against on the supporting shoulder 16 of first projection 9.Owing to preset load, can guarantee the positiver sealing of the sheet metal lid of 3 pairs of cans of packing element.

Because the axial width of groove 21 and the height of tapering part 13 are almost equal, so flanging 17 is resisted against the downside 18 of second projection 8.

First projection 9 is to support shoulder 16 relative downsides and has beveled region 22.Therefore, packing element 3 can be attached to can with plain mode by the opening that makes its sheet metal lid 2 of nipping when producing.First tapering part, 13 resilient expansion are also locked groove 21 after sliding above first projection 9.When abandoning can, simply mode makes packing element 3 separate with can.

The present invention will allow to make crash-resistant reclosable container in simple mode, obtain high practical value thus.

Claims

1. be particularly useful for the can of beverage, described can has: substantially cylindrical wall (1), and the top of described cylindrical wall and bottom are by sheet metal lid (2) sealing that is incorporated into wall (1) separately; Packing element (3), described packing element (3) inserts the opening of sheet metal lid (2) and allows the resealable ground of can to open, opening in the wherein said sheet metal lid (2) is cut first tapering part (13) encirclement of awl and extension between the circular flanging (17) of opening and circular edge (20) by what described sheet metal cover (2) to described can inside, and described packing element (3) is provided with the retaining part (7) of substantially cylindrical, described retaining part (7) inserts the opening of sheet metal lid (2) and has circumferential groove (21), described circumferential groove (21) admits first tapering part (13) of sheet metal lid (2) and second projection (8) that is resisted against by described flanging (17) to constrain on the direction that deviates from can, it is characterized in that the screw-top (5) of described packing element (3) is resisted against described second projection (8) under closed state.

2. can as claimed in claim 1, it is characterized in that, the circumferential groove (21) of described retaining part (7) is retrained in the axial direction by first projection (9), and described first projection (9) has supporting shoulder (16) and tapered in side opposite with described supporting shoulder (16) in a side of described groove.

3. can as claimed in claim 1 or 2 is characterized in that, circumferential groove (21) width vertically of described retaining part (7) is corresponding with the axial width of first conical part (13) of sheet metal lid (2).

4. as any one described can of claim 1-3, it is characterized in that second tapering part (14) of cutting awl along the direction that deviates from can is disposed radially the outside at described first tapering part (13).

5. as any one described can of claim 1-4, it is characterized in that described opening is arranged in the limit of described sheet metal lid (2) and adjacent described sheet metal lid (2) prejudicially.

6. as any one described can of claim 1-5, it is characterized in that described packing element (3) is made of single-piece base section (4) and screw-top (5).

7. can as claimed in claim 6 is characterized in that, described packing element (3) has can tear apart the safety cap (10) that opens.

8. can as claimed in claim 7 is characterized in that, described tear safety cap (10) be its edge form described flanging (17) against the part of plate (6) of second projection (8).

9. as claim 7 or 8 described cans, it is characterized in that, go up to form at described safety cap (10) and tear draw ring (11).

10. as any one described can of claim 1-9, it is characterized in that described packing element (3) is made by plastics, especially polyolefin.

11. any one described can as claim 1-10, it is characterized in that, the lower metal thin slice lid that is oppositely arranged with the sheet metal lid that is loaded with packing element has the recess that shaped design becomes to admit the packing element of another can, and described another can overlays on first can.