CN1452578A - Plastic cap with gasket - Google Patents
Plastic cap with gasket Download PDFInfo
- Publication number
- CN1452578A CN1452578A CN00819487.4A CN00819487A CN1452578A CN 1452578 A CN1452578 A CN 1452578A CN 00819487 A CN00819487 A CN 00819487A CN 1452578 A CN1452578 A CN 1452578A
- Authority
- CN
- China
- Prior art keywords
- liner
- lid
- vinyl cover
- outstanding
- bonding pad
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
- B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
- B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
Abstract
The present invention relates to a plastic cap with a gasket, the cap comprising a skirt, a top, a connecting region between the skirt and the top, a security ring, and a gasket fixed to the top by fusion of the contact surfaces between the top and the gasket, characterized in that the gasket extends on the top of the cap internally and radially to an extent such as to leave a portion of the connecting region exposed.
Description
The present invention relates to a kind of padded vinyl cover, this lid comprises an edge that has negative thread, a top, bonding pad, the safety link between edge and top, and a liner integrally formed with the top inwall.
We know, mainly contain two kinds of padded plastic bottle closures at present on market.
First kind of lid comprises by an edge, a top, bonding pad, a main body and the liner that is attached to the lid top with the whole bag of tricks that safety link constitutes between edge and top.This lid is made up of two independent part branch, lid itself and liner, and these two parts are molded respectively, are assembled together then.
The difference of second kind of lid and first kind is, it is made into single parts, and the top of liner and lid is an one.
Particularly, for second kind of lid, liner is attached on the top of lid securely with the form of plastic sheeting, extends to the top of lid and the bonding pad between the edge and with its covering.
This structure is made by the method with three steps, and wherein the first step is included in the injection molding that carries out plastic material in the suitable model and/or pressing mold to form the main body of lid.Second step was that top at lid is to suitably being heated so that with the precipitation of the plastic material of the scheduled volume of its dissolving.Final step is that punching machine is inserted in the main body of lid to form liner, does not have packing element in bottleneck.
Obviously, in the final step of this method, the whole surface on lid top is compressed and be distributed in to the amount of the plastic material that flows equably, up to reaching and covering bonding pad between lid top and the edge.
Yet, above-mentioned have liner plastic bottle closure have some shortcomings.
For first kind of lid, separate the top that the liner that is shaped is assemblied in lid usually with cap body.Therefore, in the normal running of lid, often have the possibility that liner comes off from the top, can damage the leak tightness of bottle cap.
The bottle that is installed in the carbonic acid beverage meets with sealing problem equally.
In any case, form the true of whole lid and do not meet customer's requirement by two separated components.
The another kind that is assembled to the lid top is selected, and can utilize not repel glue liner is fixed to the upper.But like this cap structure is just too complicated, and cost is surprising.
On the other hand, because second kind of cover configuration is single-piece, there is not above-mentioned defective in it.But the sealing problem that causes by being applied to the vertical pressure on the liner is not resolved.
Problem clearly because just be enough to make seal failure along one that unscrews direction very little moving, thereby causes leaking of gas content.
Therefore be starved of a kind of padded vinyl cover is provided, solve the problem of technology formerly, particularly about under pressure, guaranteeing the leak free problem with this.
Therefore, the present invention based on problem be a kind of padded vinyl cover of invention, the feature with 26S Proteasome Structure and Function satisfies those demands above-mentioned, also avoids simultaneously the problem of the padded vinyl cover of technology formerly.
This problem is solved as described in the appended claims like that.
With reference to the accompanying drawings, by following description to two preferred embodiments of the present invention, other feature and advantage that will clearer padded vinyl cover of the present invention, wherein the explanation of embodiment provides with nonrestrictive way of example, in the accompanying drawing:
Fig. 1 is a section drawing, shows the padded vinyl cover according to invention;
Fig. 2 is a section drawing, and expression is according to a kind of modification of the padded vinyl cover of invention;
Fig. 3 is a section drawing, and expression is according to the another kind of modification of the padded vinyl cover of invention.
With reference to figure 1, padded vinyl cover according to the present invention is expressed as 1 generally.
Lid 1 comprises 4, one safety links 5 in 3, one bonding pads between edge and top, 2, one tops, an edge, and a seal liner 6.
Edge 2 has an inwall and an outer wall, and wherein inwall has single thread screw 7, and outer wall has annular knurl 8 so that lid 1 is screwed on the bottleneck (not shown) and above it screws down.
Particularly, thus annular knurl 8 by arranging vertically that with respect to the outer wall at edge 2 a plurality of ribs of its length of extend through form basically.
Top 3 is a smooth disk basically, is connected with edge 2 by bonding pad 4.
Bonding pad 4 from but form of annular rings has flat substantially interior and outer wall.
Alternatively, inside and outside wall also can be other shapes, and is for example round.
In addition, safety link 5 has bridgeware 10 and connects edge 2 in lid 1.Bridgeware can disconnect when bottle is opened for the first time.
Seal liner 6 is thin disc format, radially extends to a certain degree from the center on the top 3 of lid, and a part 12 of bonding pad 4 is come out.
In fact seal liner 6 has an outer rim 11 that is terminated to bonding pad 4, and wherein it makes space 12 expose.Expose a half width of the inwall that space 12 preferably corresponds essentially to bonding pad 4.
Especially, a ring flange 13 is arranged on the liner 6, on these flange 13 outer walls, have one and have corresponding outstanding 14 undercut portions.This is given prominence to 14 and has determined that a seal point is used for interfering mutually to prevent that the liquid in the bottle spills after being screwed in lid 1 on the bottleneck with the bottleneck inwall.
The specific function in space 12 is to allow outer rim 11 elastic deformations, when screwing upper cover 1, and the extruding radial expansion that response is applied by the bottleneck upper limb.This elastic deformation makes liner stick to the upper limb of bottleneck better.
Specifically for the bottle that is installed in the carbonic acid beverage, be to improve sealing property by the benefit of using padded plastic closure according to the present invention to obtain.
When bottle is placed for a long time and/or is in valuable that high temperature this advantage of following time especially shows.
In these situations, in fact the pressure of bottle interior can greatly increase and can increase the possibility of undesirable gas leakage.
Yet, it is pointed out that padded vinyl cover of the present invention also can be applicable to closed container usually, for example wide-mouth bottle and fresh-keeping bottle.
In fact, in this case, it is very important reaching sealing, for example, is stored in after food in the container has been sterilized.
With reference to figure 2, be expressed as 101 generally according to the padded vinyl cover of a kind of modification of the present invention.
Top 16 is flat disk basically, is connected in edge 15 continuously by bonding pad 17.Top 16 also has a plurality of anchor logs 20, towards the inside of lid and around near the circumference that is positioned at the bonding pad 17.
These anchor logs 20 have wedge profile.
The specific function of anchor log 20 is and the recessed undercut portions cooperation of the liner that responds, liner 19 is installed on the top 16 of lid 101.
The outer rim 22 of seal liner 19 terminates in the height of bonding pad 17, and wherein its feasible half surperficial part 21 that corresponds essentially to the inwall of bonding pad 17 exposes.Outer rim 22 is also thickeied.
Especially, on these ring flange 23 outer walls, have one and have corresponding outstanding 24 undercut portions.This outstanding 24 has determined that by interfering mutually with the bottleneck inwall seal point spills with the liquid in preventing when being screwed in lid 101 on the bottleneck after bottle.
The profile of tooth part 25 of a ring-type is arranged on 23 of the outer rim 22 of liner 19 and ring flanges.
The thickening of outer rim 22 and ring-type profile of tooth part 25 has following function, if promptly form the function of the seal point with stronger leak tightness during the surface imperfection of the upper limb of bottleneck.
With reference to figure 3, be expressed as 102 generally according to the padded vinyl cover of another kind of modification of the present invention.
In fact leak free liner 29 has an edge 32, and this edge termination wherein makes and preferably exposes corresponding to a space 31 of approximately half bonding pad inside face in the bonding pad 27.
The advantage of above-mentioned modification is that this lid that has liner is easy to be adapted to antistaling container, and especially those stand jar or bottle that pasteurization is handled before sealing.
Certainly, if under the situation of the liner that there is no need to produce complete disc-shape, back one embodiment can save thermoplastic material.
The vinyl cover that has liner of the present invention can be produced by reequiping existing known revolution mould.
The revolution mould that is used for producing the vinyl cover that has liner at present comprises an adapter plate, this plate has a series of die cavity or former part, this plate generally is divided into two halves, and half has the die cavity that is suitable for forming liner, and half has the die cavity that is suitable for forming lid itself.
In addition, the injector that is used to inject the fluid thermal moulding material is connected with the molded die cavity of adapter plate by suitable hole.
This mould also comprises a rotor plate, and it has a series of core or formpiston, makes their closures thereby can be inserted in all each molded die cavities, all has this core in the moulding of liner and lid.
These two plates, promptly adapter plate and rotor plate are placed so that realize above-mentioned core in the face of order mutually and are inserted into the operation in the molded die cavity.
Especially, in order to produce the vinyl cover that has liner of the present invention, thereby the end portion of each formpiston all is trimmed to and makes its outside face with an annular in order to be adjacent to and sealing is used for the roof of die cavity of molded gasket and the bonding pad between the sidewall.
In the first step of the molding process of the vinyl cover that has a liner of the present invention, thereby rotor plate enters molded die cavity of liner or the molded die cavity of lid towards the end portion that adapter plate moves each core.
Especially, in liner mold type cavity region, the bonding pad that core is orientated as between above-mentioned annular upper surface and die cavity roof and the sidewall is close to.
Thermoplastic material is injected in the molded die cavity of liner subsequently with independent formation liner.
After liner was molded and finishes, mold open made core break away from die cavity separately.Particularly, the core that leaves the molded die cavity of liner has a molded good liner in that its end portion is subsidiary.
Then, rotor plate, the plate that promptly has a core wind perpendicular to 180 ° of the rotational of the faying face of it and adapter plate.
Like this, the core that has liner at its end portion is placed in the lid mold type cavity region, does not carry then being placed in the liner mold type cavity region of core of liner at its end portion.
At this moment, rotor plate moves towards adapter plate once more, and the core that has liner enters in the molded die cavity of lid, determines a sealing molding cavity that is used to form lid itself, do not have the core of liner then to enter in the molded die cavity of aforesaid liner, be used to form liner.
At this moment, thermoplastic material is injected in the molded die cavity of liner and the molded die cavity of lid in.
Certainly, reiterate that liner is in the independent moulding of the part of the adapter plate that has the molded die cavity of liner, simultaneously, the lid basis is in part moulding of the plate that has the molded die cavity of lid, and it is directly molded to center on already made liner.
At last, mold open makes the lid finished product that has completed come off from the core that breaks away from the molded die cavity of lid.
Being further rotated of 180 ° of rotor plates makes mould turn back to initial position, thus can begin second take turns molded.
For the described anchor log of molded modification of the present invention, the end of each molded die cavity all has the circle of a wedge-shaped cross-section outstanding, be suitable in the thickness of liner 19, forming the depression undercutting in the molded stage of liner, and, form anchor log 22 and sunk part 21 on the top 16 of lid 101 subsequently in the molded stage of lid itself.Molded for ring-type liner shown in Figure 3 only provides a kind of mould with two coaxial formpistons just enough, and wherein outside positive mold has aforesaid annular upper surface, be used for and molded die cavity roof of liner and sidewall between the bonding pad be close to.In addition, inner formpiston has a upper surface in order to be close to the end of molded die cavity in the molded stage of liner.
To form an annular molding cavity like this, material is injected into wherein with molded gasket.
The operation of the molded lid that has a ring liner is the same with above-mentioned operation.
Padded vinyl cover of the present invention can have various difformities according to specific requirement.
Such as, anchor log can be placed on the liner, like this, and the corresponding depressed part combination that forms in their outstanding undercut portions and the lid tip thickness.
In this embodiment, the end of molded die cavity also is modified, and makes it to have a circular depressed part that has wedge profile, thereby in order to produce this modification.
Screw thread can have one or several beginning, and this bottleneck type of being assembled by them is decided.
If liner is to be made by the soft material such as the thermoplastic rubber, it can not have outer rim reinforcement or annular dentalation so.
Various anchor logs can be arranged, and these anchor logs can have any desirable shape or also can constitute a continuous loop.
In addition, also can be for existing liner provide anchor log, the inside face on the top of liner extend through lid is with the top that covers lid fully and the bonding pad between the edge.
In order to form this liner of last type, use existing core to transform the molded die cavity of aforesaid liner and get final product.
The plastic material of making lid and liner can change as requested.For example, lid can be by the polypropylene manufacturing, and liner can be by the low density polyethylene (LDPE) manufacturing.
From the above description as seen, the lid that has liner of the present invention has satisfied the requirement that the brief introduction of this specification sheets is partly pointed out, has overcome the defective of the lid that has liner of technology formerly simultaneously.
In fact the present invention implements by the bottle cap that has liner, and this bottle cap is simple and practical, and especially under specific conditions, for example bottle puts the condition of high voltage of thing.
Certainly, in order to satisfy concrete and special requirement, those skilled in the art can carry out many transformations and variation to the above-mentioned lid that has liner, and still, all such modifications all are included in the appending claims restricted portion.
Claims (10)
1. vinyl cover (1 that has liner; 101; 102), this lid comprises edge (2; 15; 25), the top (3; 16; 26), the bonding pad between edge and top (4; 17; 27), safety link (5; 18; 28), and the liner (6 that is fixed on the top by the mating surfaces between welding top and the liner; 19; 29), it is characterized in that liner inwardly radially extends on the top of lid makes bonding pad (4; 17; 27) part (12; 21; 31) expose.
2. the vinyl cover (1 that has liner as claimed in claim 1; 101), it is characterized in that liner (6; 19) from lid top (3; 16) extend to form a complete basic disk uniformly at center.
3. the vinyl cover (102) that has liner as claimed in claim 1 is characterized in that, liner (29) the distance beginning predetermined from the center of distance top (26) extended to cover its inner circumferential part (30) with form of annular rings.
4. as each described vinyl cover (1 that has liner of claim 1,2 and 3; 101; 102), it is characterized in that bonding pad (4; 17; 27) exposed parts (12; 21; 31) correspond essentially to half of bonding pad.
5. the vinyl cover (1 that has liner as claimed in claim 1 or 2; 101), it is characterized in that liner (6; 19) comprise annular lip (13; 23), this flange is outstanding towards the inside of lid, and this flange comprises that on its outer wall one has corresponding outstanding (14; 24) undercut portions is used for forming seal point by interfering mutually with bottleneck.
6. the vinyl cover (101) that has liner as claimed in claim 1 or 2 is characterized in that, comprises the anchor log (20) that is used for liner is fastened on the top.
7. the vinyl cover (101) that has liner as claimed in claim 6, it is characterized in that, anchor log comprises integrally formed outstanding (20), top (16) of at least one and lid, this at least one outstandingly have an outstanding undercut portions, the correspondence depression undercut portions of this outstanding undercut portions and liner (19) forms special-shaped joint.
8. the vinyl cover (101) that has liner as claimed in claim 7 is characterized in that, these at least one outstanding (20) have wedge-shaped cross-section.
9. the vinyl cover (101) that has liner as claimed in claim 8 is characterized in that, this at least one outstanding (20) are positioned on the circle near bonding pad (17).。
10. as each described vinyl cover (101) that has liner of claim 6 to 9, it is characterized in that, liner (19) comprise the outer rim (22) of thickening and be positioned at outer rim and annular lip (23) between dentation outstanding (25).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IT2000/000171 WO2001085563A1 (en) | 2000-05-05 | 2000-05-05 | Plastic cap with gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1452578A true CN1452578A (en) | 2003-10-29 |
| CN1209269C CN1209269C (en) | 2005-07-06 |
Family
ID=11133516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00819487.4A Expired - Fee Related CN1209269C (en) | 2000-05-05 | 2000-05-05 | Plastic cap with gasket |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1278678A1 (en) |
| CN (1) | CN1209269C (en) |
| AU (1) | AU4610600A (en) |
| RU (1) | RU2255882C2 (en) |
| WO (1) | WO2001085563A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148208B (en) * | 2006-09-21 | 2011-03-30 | 日本皇冠塞株式会社 | Metallic package |
| CN102556481A (en) * | 2012-01-30 | 2012-07-11 | 四川省宜宾普什模具有限公司 | Injection molded bottle cap |
| CN110027789A (en) * | 2018-01-12 | 2019-07-19 | 义乌市易开盖实业公司 | Lid is turned in a kind of leakproof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004050496A1 (en) * | 2002-11-29 | 2004-06-17 | Gefit S.P.A. | Plastics cap |
| US20090008360A1 (en) * | 2007-05-31 | 2009-01-08 | Graham Packaging Company, L.P. | Finish and closure for plastic pasteurizable container |
| ES2401448B1 (en) * | 2009-12-10 | 2014-07-02 | Vladimir Vikentievich VINOGRADOV | Device for electrochemical treatment of water or aqueous solutions |
| WO2012021084A1 (en) * | 2010-08-12 | 2012-02-16 | Prozumenshikov Andrei Borisovich | Sealing device |
| EP3435834B1 (en) * | 2016-04-01 | 2021-06-02 | United States Endoscopy Group, Inc. | Water bottle cap assemblies for an endoscopic device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378893A (en) * | 1979-09-21 | 1983-04-05 | H-C Industries, Inc. | Composite closure |
| US4570811A (en) * | 1985-01-30 | 1986-02-18 | Continental White Cap, Inc. | Plastic closure with flowed-in plastisol lining |
| JP3302178B2 (en) * | 1994-06-22 | 2002-07-15 | 日本クラウンコルク株式会社 | Synthetic resin container lid |
| JP2943048B2 (en) * | 1994-08-06 | 1999-08-30 | 日本山村硝子株式会社 | Pill fur proof cap made of synthetic resin |
| DE19827174A1 (en) * | 1997-06-18 | 1998-12-24 | Alcoa Gmbh Verpackwerke | Metal closure cap manufacturing punch and cap, especially for bottles |
| EP0987190A1 (en) * | 1998-09-14 | 2000-03-22 | Crown Cork & Seal Technologies Corporation | Closure cap |
-
2000
- 2000-05-05 WO PCT/IT2000/000171 patent/WO2001085563A1/en not_active Application Discontinuation
- 2000-05-05 CN CN00819487.4A patent/CN1209269C/en not_active Expired - Fee Related
- 2000-05-05 AU AU46106/00A patent/AU4610600A/en not_active Abandoned
- 2000-05-05 EP EP00927721A patent/EP1278678A1/en not_active Withdrawn
- 2000-05-05 RU RU2002132662/12A patent/RU2255882C2/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148208B (en) * | 2006-09-21 | 2011-03-30 | 日本皇冠塞株式会社 | Metallic package |
| CN102556481A (en) * | 2012-01-30 | 2012-07-11 | 四川省宜宾普什模具有限公司 | Injection molded bottle cap |
| CN110027789A (en) * | 2018-01-12 | 2019-07-19 | 义乌市易开盖实业公司 | Lid is turned in a kind of leakproof |
| CN110027789B (en) * | 2018-01-12 | 2020-10-30 | 义乌市易开盖实业公司 | Leakage-proof twist-off cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1209269C (en) | 2005-07-06 |
| RU2255882C2 (en) | 2005-07-10 |
| AU4610600A (en) | 2001-11-20 |
| EP1278678A1 (en) | 2003-01-29 |
| WO2001085563A1 (en) | 2001-11-15 |
| WO2001085563A8 (en) | 2002-02-28 |
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| C14 | Grant of patent or utility model | ||
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