CN102530364A

CN102530364A - Screw cap

Info

Publication number: CN102530364A
Application number: CN2011104315098A
Authority: CN
Inventors: A·法尔佐尼
Original assignee: Sacmi Imola SC
Current assignee: Sacmi Imola SC
Priority date: 2010-12-21
Filing date: 2011-12-21
Publication date: 2012-07-04
Also published as: IT1403338B1; ITMO20100360A1

Abstract

The present invention provides a screw cap (1). The screw cap is made of plastic and comprises a tamper-proofing tape which is provided with a continuous circumference projection. The continuous circumference projection is provided with a plurality of through holes and a continuous circumference subsidiary part which extends out from the projection part as an extension part of the projection part, and therefore the radial inner part of the projection is free.

Description

Screw top

Technical field

The present invention relates to a kind of screw top.

Particularly, but not exclusively, the present invention relates to a kind of screw top, said screw top is made of plastics and is provided with anti-tamper band, and said anti-tamper band can be used as the evidence that container opens and separates for the first time unscrewing when covering.

Especially, with reference to lid as described in the preamble according to first claim.

Background technology

For example; Announce US 4978016 known this lids from patent; This patent discloses a kind of band with a series of articulated sections, and said a series of articulated sections are spaced apart from each other through window or separately, these windows under the situation of the remote edge that does not arrive band from extending on the line that the articulated section limited.Extract the transition period that is configured to operative configuration at band out from mould, window alleviates compressive force, wherein extracts out to be with in the structure at said mould to slope inwardly, thereby leaves from the roof of capping, in said operative configuration, be with to slope inwardly, thereby near said roof.

Prior art comprises that also following patent announces (below quote Reference numeral be the Reference numeral that uses in the respective drawings that comprises during each is announced).

WO 2005/067588 shows a kind of band with a plurality of salients (tab) 34, and each said salient 34 all has: groove, said groove are formed near the hinged edge of salient; With attaching part 34a; Said attaching part 34a is outstanding from the free edge relative with hinged edge of salient; Wherein attaching part is arranged for the projections contact ground mutual action with the neck of container, to prevent that salient overturns around hinged edge when cover unscrewing for the first time.

WO 2005/014414 discloses a kind of lid with anti-tamper band; Said anti-tamper band has salient; Said salient is provided with several portions 26,33 and 39; Said several portions 26,33 and 39 interconnects forming step profile 45, and said step profile 45 is designed to engage connecting in shape with another step profile of container neck 46.WO 2005/014414 also discloses a kind of lid with anti-tamper band; Said anti-tamper band is provided with salient; Said salient has external margin, and thin flexible attaching part 18 is outstanding from said external margin, demonstrates folding structure when being inserted on the container neck at lid.

US 4458821 shows the band with salient 40, and said salient 40 is spaced apart from each other and the film 42 through flexibility couples together.The outside of each salient 40 has bow-shaped recess 44 in the center.Salient 40 is connected to the annular section 34 of band through annular articulation piece 34, and said annular articulation piece 34 is formed by hinged segmentation 55, and said hinged segmentation 55 is separated from each other through hole 56.Hinged segmentation 55 links together salient 40, with the structural integrity of retaining ring.

US 4546892 discloses and a kind ofly has been with 4, and said have continuous annular upper portion part 4A with 4, and said continuous annular upper portion part 4A is connected to a plurality of salients 6 through articulation piece 7.Salient 6 comprises heel 8 and thin extension 9.

US 4801030 shows a kind of capping 23 that has with 28, saidly is with 28 to have annular wall 30 and a plurality of flexible walls 34, and said a plurality of flexible walls 34 are spaced apart circumferentially and be attached to wall 30 through radial wall 34a.The shaped design of wall 34 becomes to limit bag shape portion 35.When capping 23 was unscrewed, flexible wall 34 was bonded on the annular flange flange 37 of neck of container, was with 28 to separate thereby cause.

US 4402418 discloses a kind of plasticity capping 12; Said plasticity capping 12 has endless belt 19 and destructible element 20; 19 stretch out four salients 21 of equidistance angularly from the endless belt; Each salient all have two leg-of-mutton protruding 22, said two leg-of-mutton protruding 22 through being resisted against on the annular flange flange 32 and with the neck mutual action of container.The free end of salient 21 is arranged in flange 32 and is with between 19.

German utility model DE 202004015939 U1 show a plurality of salients 5, and said a plurality of salients 5 are spaced apart from each other through opening or groove, and all are provided with attaching part 6 separately.

The many aspects of known lid are improvable.

In first aspect, expectation is reduced in unscrews the risk that salient overturns around hinged edge when covering for the first time.

Also be desirably in to cover in some operation that stands and under the situation of the structure that does not increase the tension force in the cover material and the anti-tamper band that do not weaken, reduce above-mentioned risk; Thereby also avoid injuring the ability that band destroys when container is opened for the first time, wherein said some operational example folds into the structure (wherein salient tilts towards the top of lid) that uses at container as especially extracting the salient of anti-tamper band out structure (wherein salient tilts in the relative side in top with lid) from mould.

Summary of the invention

An object of the present invention is to provide a kind of screw top, prior aries are improved in the one or more aspects of said screw top in can be aspect above-mentioned.

To be the upwards folded portions that when unscrewing the lid of container for the first time, prevents anti-tamper band overturn downwards around the hinged edge of this part for advantage, thus guarantee with separation.

An advantage provides a kind of screw top that is made of plastics with anti-tamper band, wherein under bigger reliability, guarantees to confirm to open for the first time the ability of container.

An advantage provides a kind of textural simple and cheap available plastic screw cap.

An advantage provides a kind of screw top that is made of plastics; Said screw top can easily be extracted the use structure that is configured on container out from mould under the situation that does not cause covering destruction or damage; Salient is downward-sloping under said mould extraction structure, and salient is inclined upwardly under said use structure.

An advantage is the operating efficiency that power is guaranteed anti-tamper band of unscrewing that reduces through applying, thereby improves the availability of screw top.

Through one in the accompanying claims or multinomial screw top these purposes of realization and advantage and other purpose and advantage.

Description of drawings

Can understand better and embodiment of the present invention with reference to the accompanying drawing that non-limiting example of the present invention is shown, wherein:

Fig. 1 is the bottom plan view according to lid of the present invention;

Fig. 2 is the cutaway view of perpendicular of the lid of Fig. 1;

Fig. 3 is the section part of the lid among Fig. 1; And

Fig. 4 is the detail view of the amplification of Fig. 2.

The specific embodiment

With reference to above-mentioned accompanying drawing, with Reference numeral 1 indication screw top, screw top is used for closed container (said container is known, and not shown) generally.Screw top 1 can be made of plastics, and said plastics for example are the plastics of injection-molded or compression molded plastics.In Fig. 2 or 3, show screw top 1 with vertical front elevation, wherein this screw top is in screw top common position of adopting in the structure of the use on the neck that is screwed to container (said container is known, and not shown).

Lid 1 comprises top enclosure portion 2, and said top enclosure portion 2 for example has the shape of fundamental base or plectane, wherein, above-mentioned " on " be intended to construct with reference to the normal use of the lid on the neck that is screwed in container.

Lid 1 also comprises skirt portion 3, and said skirt portion 3 for example has the shape of substantially cylindrical, and the inside face of said skirt portion 3 has negative thread 4.

Lid comprises anti-tamper band, and said anti-tamper band has first annular section 5, and said first annular section 5 is connected to the lower edge of skirt portion through the connecting device of easy destruction.The connecting device of said easy destruction for example comprises continuous line of weakness or a series of destructible bridge shape portion, the perhaps connecting device of other known easy destruction.First annular section 5 from skirt portion 3 to extending below.

Anti-tamper band comprises: second annular section 6, and said second annular section 6 has: first (descending) end, said first end is connected to first annular section 5 through articulated mounting; With second (on) end, said the second end and first end extend relatively and along whole 360 ° of circumference continuously.Second annular section 6 is flexible, and upwards inwardly folding in the second annular section 6 uses structure illustrated in the accompanying drawings, with the projection (said container is a known type, and not shown) of the neck that engages container.

Second annular section 6 and/or articulated mounting are provided with a plurality of through holes 7 (quantity is nine under concrete situation).Through hole 7 is arranged in the articulated mounting in an illustrated embodiment and partly extends to second annular section 6.Hole 7 spaced apart at an angle to each other (for example, spaced apart) with mutually the same distance.Each hole 7 also with second annular section 6 relative with end that be hinged second (on) end part interval opens.The quantity in hole 7 can be for example greater than six, perhaps greater than eight, perhaps greater than ten.

Lid 1 comprises attaching part 8, and said attaching part 8 extends along 360 ° of circumferencial directions continuously,, has extended whole circumference that is.Attaching part 8 stretches out from the second end as the axially-extending portion of second annular section 6.

Especially, attaching part 8 stretches out from first circumference area 9 of the radial outside of the second end of second annular section 6, thereby makes second circumference area, 10 freedom of the inner radial of the second end.

Attaching part 8 is shaped and is arranged such that; Be at lid under the situation of the use structure that covers the neck (being screwed on the neck of container) that is connected to container; Attaching part 8 surrounds the projection of the neck of containers, and attaching part 8 further is shaped and is arranged such that second circumference area, 10 K/UPs (turned) of inner radial and in the face of the downside of the projection of neck.This structure makes is unscrewing mutual action for the first time with can making attaching part 8 and this projections contact when covering; To prevent that second annular section 6 is around above-mentioned articulated mounting upset (overturn); And make second circumference area 10 can with projections contact ground mutual action, thereby separate anti-tamper band when covering opening for the first time.

As under specific circumstances, attaching part 8 can have cross-sectional plane, or the trapezoidal basically cross-sectional plane of basic rectangle, its be formed with the second end at a distance of two farther peaks, these two peaks can be rounded.

As under specific circumstances, attaching part 8 can have the cross-sectional plane that on whole circumference, has substantially invariable shape.

As under specific circumstances; Attaching part 8 can have radial wall thickness; Said radial wall thickness measures from the annulus that the second end stretches out at attaching part 8, said radial wall thickness between radial wall thickness that second annular section 6 has in the second end place about 1/3rd and about 2/3rds between.In other words, radially outer first circumference area 9 has the radial width between half the and about twice between the pact of the radial width of inner radial second circumference area 10.As in the concrete example, the radial wall thickness of attaching part 8 at the base portion place can be that the pact of total radial wall thickness of the second end of second annular section 6 is half the.In other words, the radial width of radially outer first circumference area 9 approximates the radial width of inner radial second circumference area 10.

As in this example; The cross-sectional plane that second annular section 6 can have the fundamental triangle shape; Said fundamental triangle shape has butt (descending) peak; The peak of said butt ends near above-mentioned articulated mounting place or the above-mentioned articulated mounting, and said fundamental triangle shape have with above-mentioned the second end corresponding short (on) side.

As in the concrete example, articulated mounting can comprise the material part 11 of the weakness that first annular section 5 and second annular section 6 are linked together.Weak material part 11 is extended along circumferencial direction.In the hole 7 at least one or each can extend till the material part 11 of weakness, the material part 11 of said weakness can be blocked at 7 places in the hole.Thereby the part 11 that forms the weakness of articulated section is blocked, that is, weak part 11 comprises a series of segmentations, and these segmentations are different and along circumferential directions.

The surface-limited that at least one or each (as in this example) in the hole 7 can be tilted up, so as the opening that makes the hole on the inboard of second annular section 6 greater than it on the outside of second annular section 6.

The single attaching part 8 that extends continuously along 360 ° of circumferencial directions is set guarantees that anti-tamper band for the first time unscrewing separation when cover.Single attaching part 8 acts on the safe projection of radially stretching out from the neck of container, overturns downwards to prevent second annular section 6.Second annular section 6 must be resisted against on the downside of safe projection by second district 10, when the neck of container promotes, to separate anti-tamper band or ring when covering.The anti-inverting action of single attaching part 8 is especially effective and failure-free.

In addition, the total of second annular section 6 can carry out the transition to when using structure easily from the bottom reversed to the top extracting structure out from mould, thereby has reduced the risk of being destroyed lid by inverting action.

The total of second annular section 6 guarantees that also anti-tamper band is through being separated by the low relatively power of the rule that the operator applied.

Claims

1. a screw top (1), said screw top comprises:

-top enclosure portion (2);

-skirt portion (3), said skirt portion are connected to said top enclosure portion (2), and said skirt portion (3) has negative thread (4);

-the first anti-tamper band shape part (5), the said first anti-tamper band shape part is connected to the lower edge of said skirt portion (3) through the connecting device of easy destruction, the said first anti-tamper band shape part (5) from said skirt portion (3) to extending below;

-the second anti-tamper band shape part (6); The said second anti-tamper band shape partly has first end and the second end; Said first end is connected to the said first anti-tamper band shape part (5) through articulated mounting (11); Said the second end and said first end extend relatively and along circumference continuously, and the said second anti-tamper band shape part (6) is flexible and inwardly upwards folding, with the projection of the neck that engages container;

-two or more holes (7), said two or more holes (7) are arranged in the said articulated mounting (11) and/or in the said second anti-tamper band shape part (6), said hole (7) are spaced apart angledly and spaced apart with said the second end;

It is characterized in that said screw top comprises continuous circumference attaching part (8), said circumference attaching part (8) stretches out from said the second end as the extension of the said second anti-tamper band shape part (6).

2. screw top according to claim 1, wherein, said attaching part (8) stretches out from first circumference area (9) of the radial outside of said the second end, thereby makes second circumference area (10) freedom of inner radial.

3. screw top according to claim 1 and 2; Wherein, Said attaching part (8) is shaped and is arranged such that, is under the situation in the use structure of neck that said screw top connects said container at said screw top, and said attaching part surrounds the projection of the neck of said container; And second circumference area (10) of the said inner radial of said the second end faces up, and in the face of the downside of the projection of the neck of said container.

4. according to each the described screw top in the above claim, wherein, said attaching part (8) has basic rectangle or trapezoidal basically cross-sectional plane, and said cross-sectional plane has and the peak of said the second end at a distance of two farther roundings at least.

5. according to each the described screw top in the above claim, wherein, said attaching part (8) has basic unmodified cross-sectional plane on whole circumference.

6. according to each the described screw top in the above claim; Wherein, At said attaching part from the annulus that said the second end stretches out; Said attaching part (8) has radial wall thickness, said radial wall thickness between the radial wall thickness of the said the second end of said second anti-tamper band shape part (6) about 1/3rd and about 2/3rds between.

7. according to each the described screw top in the above claim, wherein, the radial wall thickness of said attaching part at the base portion place is that the pact of total radial wall thickness of said the second end of the said second anti-tamper band shape part is half the.

8. according to each the described screw top in the above claim; Wherein, The cross-sectional plane that the said second anti-tamper band shape part (6) has the fundamental triangle shape; Said fundamental triangle shape has the peak of butt, and the peak of said butt ends in the said articulated mounting (11) or terminates near the said articulated mounting (11), and said fundamental triangle shape has short side at said the second end place.

9. according to each the described screw top in the above claim, wherein, said articulated mounting comprises the said first anti-tamper band shape partial sum said second anti-tamper band shape part (5; The material part (11) of the weakness that 6) links up, the material part (11) of said weakness is extended along circumferencial direction, and each in said hole (7) all extends to the material part of the said weakness of being blocked by said hole.

10. according to each the described screw top in the above claim; Wherein, At least one or each surface-limited of being tilted up in the said hole (7); So that opening that said hole limited on the inboard of the said second anti-tamper band shape part (6) greater than on the outside of the said second anti-tamper band shape part (6), the wherein inside and outside reference folded portions that makes progress.

11. according to each the described screw top in the above claim, wherein, in said hole (7) at least one or each be arranged in the said articulated mounting (11) and partly extension in second anti-tamper band shape part (6).