CN1027532C - Linerless closure for carbonated beverage container - Google Patents
Linerless closure for carbonated beverage container Download PDFInfo
- Publication number
- CN1027532C CN1027532C CN 91108995 CN91108995A CN1027532C CN 1027532 C CN1027532 C CN 1027532C CN 91108995 CN91108995 CN 91108995 CN 91108995 A CN91108995 A CN 91108995A CN 1027532 C CN1027532 C CN 1027532C
- Authority
- CN
- China
- Prior art keywords
- sealing member
- container
- rib
- sealing
- neck
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The present invention relates to a sealing member for a container with screw threads, which is provided with a sealing rib (6) with two parts, wherein the two parts comprise a first part (7) and a second part (8). The two parts (7) and (8) are engaged in the position with a zone (13) which enables the engagement position to be bent so that the second part (8) can generate consonant folding actions correspondingly to the first part (7) when the sealing element 1 is in threaded connection with the matchable container.
Description
The present invention relates to be used for the lid of the opening of the threaded container of apical end, particularly the invention provides a kind of threaded top cover, this screw top closures not only seals the bottle such as the carbonate liquid of soft drink, and be suitable for sealing have content, more than bar pressure or following have gas componant or require gas tight seal, such as other containers of glass or plastic container.
Screw top closures seals various containers and has used considerable time, although many screw top closures are equipped with a soft lining of independent sealing in lid inside, but significant advantage is arranged in the process of production overall lid, this overall lid has a lip limit at the position, top of lid, the annular end face joint of vessel port is arranged to be close in this lip limit, and between the open end edge of lid lip limit and container, seal, the lip limit is then rolled above the open end edge of container.Therefore, the sealing that provides of this lid with the soft lining of independent sealing only is the edge that leans against the open end of container.
Australian patent application No. 15456/76 (on June 30th, 1976) discloses another kind of overall lid, in lid, there is an annular lip to extend from the interior top of lid, and at the endoporus place of vessel port joint, so that the free end on lip limit is rolled on the inside face that leans against hole or opening.Yet, use this lid, effective seal has accurately and consistent size with regard to the endoporus that requires opening.In addition, if what be loaded into is aerated liquid or the liquid that contains other gases, gaseous tension can trend towards making the distortion of lip limit, thereby causes seal failure.
Australian patent application No. 14180/83 (May 5 nineteen eighty-three) has been described a kind of lid that has two kinds of inner seal structures, a kind of structure is a ringwise outside neighboring that forms the storage container open end, in the sealing of lid process, it relies on the pressure that is produced leaning this neighboring sealing, and another structure that is provided is the endoporus place that cylindrical lip is bonded on vessel port in making.
The applicant has submitted an international application to, application number is PCT/AU89/00256, this application has overcome above-mentioned defective of the prior art by a kind of such container seal is provided, be this sealing member comprise from the top of sealing member extended normally downwards and the ring seal rib of inside two parts, two parts of sealing ribs comprise the first that is connected the sealing member top, first generally is the second portion of cylindric downward connection rib, and second portion radially inwardly and downwards extends from the sealing member top.Sealing member is tightened onto when wanting on the leak free container, sealing ribs itself will inwardly be folded up and form an end and the radially outside sealing of extending of container neck.
The applicant's application number is PCT/AU89/00256(W089/12584) the described sealing member of international application the sealing of one failure-free is provided for the carbonate liquid container.Simultaneously, the applicant has found that sealing member exists unreliability in some cases, and this situation just is meant when the diameter of the container neck that sealing member is housed on it has subtle change.
The operation of all sealing members and slight change that the trickle tolerance variation that occurs and container neck diameter occur all may cause seal failure.Have now found that, when producing very trickle tolerance variation when (PET) material is made container with glass and polyethylene (polyethylene terephthalate), under certain conditions, particularly under situation about re-using, the diameter of container may change and depart from original diameter.Under the situation of using pet container, the slight shrinkage that can between each time used, will cause container certainly to necessity washing of container, this also comprises recess diameter, when considering that container repetition access times reach 30 times, just can reckon with that this contraction can become quite big.
An object of the present invention is to provide a kind of sealing member, even the recess diameter of each container has any slight variation, the sealing part can both be reliably and is sealed the carbonate liquid container all the time.
A kind of container seal that proposes according to the present invention, this container has the outside thread neck, described sealing member is to be molded as an integral body by a kind of elastoplast, and a top is arranged, the extended skirt section that complementary threads is arranged on the surface within it, with a sealing ribs that stretches out downwards from the top, the sealing rib comprises a basically cylindrical first adjacent with the top, and maintenance and the skirt section is adjacent or with the skirt section adjacency, and also comprise one away from the top adjacent with end first, the second portion that is the frustum shape, and this part radially inwardly forms an annular free edge, the internal diameter of first equals or only slightly greater than the external diameter of container neck, sealing member is to be connected to like this on the container, promptly in lid and neck thread engaging process, the second portion that is the frustum shape will engage by the open end of neck, and turn back and lean against in the cylindrical basically first of sealing ribs, thereby form gas tight seal between container neck and sealing member, sealing ribs comprises a roughly joint between first and second parts of this rib, the ringwise basically bending district that an inside face of close this rib forms.
Preferably plastic material is highdensity polyethylene, low-density polyethylene or polypropylene.Be used to the occasion of steam state liquid at container, plastics must have the very low porosity to gas.
The shape and size of sealing ribs are preferably definite like this, promptly in sealing member and container threads engaging process, the free edge of sealing rib produces distortion because of container, and before the sealing member full engagement, contact with the inside face on top, or contact with the surface of the adjacent structure on top, and the sealing ribs in contiguous free edge zone, when sealing member and container full engagement, compacted between the open end of container neck and sealing member top; Or and the adjacent structure in sealing member top between compress.
Preferably the cylindrical basically first on lip limit engages at least 90 ° of angles with the second portion that is the frustum shape.Preferably the thickness of sealing ribs generally is that maximum ga(u)ge from adjacent top tapers to the minimum thickness at its annular free edge.
Here sealing member is applicable to a kind of container that has rank shape seal area of sealing, and the cylindrical basically first of sealing ribs is connected to and skirt section radially on the inside at interval top, so that determine the space of an annular cross section between sealing ribs and skirt section.Here the neck of container has the surface finish of a standard, and sealing ribs is close or adjacent with the skirt section from the skirt section.
Now illustrate by exemplary embodiments of the present invention and with reference to accompanying drawing.Wherein:
Fig. 1 is the section drawing of one embodiment of the invention;
Fig. 2 is screwed into a section drawing on the container that matches for the embodiment of Fig. 1;
Fig. 3 is the section drawing of another embodiment.
Lid 1 shown in Figure 1, be a kind of STRTHD top cover that under many occasions, is used for splendid attire soda bottle.Lid 1 comprise one within it the surface be provided with screw thread 3 and extended cylindrical skirt 2, the top of lid 1 is by 4 sealings of top, top 4 engages with skirt section 2 in continuous circular periphery.Top 4 and skirt section 2 form an integral body by injection molding by high density polyethylene (HDPE).
Lid of the present invention is different from existing lid, and this lid comprises an extended ring seal rib 6 of inside face from the top 4 that is concentric with lid 1, and this ring seal rib is in the position near skirt section 2.Ring seal rib 6 comprises the first or the root 7 that have a second portion 8, and first 4 extends roughly parallelly with skirt section 2 from the top, and second portion 8 extends from the end of first 7, general inside be tapered and away from the inner face at top 4.
Can see that in Fig. 2 lid 1 is screwed on the threaded tip 9 of container not completely shown in the accompanying drawing.Seal on the outer peripheral edges of its open end by a step 10 on the top 9 of container.Step 10 makes between the inside face in skirt section 2 of the top 9 of container and lid 1 space.When lid 1 is screwed on the container, the size of above-mentioned annular space is enough to make the second portion 8 of ring seal rib 6 to contact with the top 9 of container, and because second portion 8 itself is turned up and leans against on the root 7, make itself and top 4 constitute whole, extend to the end surfaces of container like this from step 10, between lid 1 and container, just formed a continuous gas tight seal.Just there is no need to use as in this area a sort of independent sealing member is inserted in the lid 1 commonly used, that before the application, use come airtight container.
When lid 1 connects in a manner described, the second portion 8 of ring seal rib 6 because of its towards the top 4 crooked distortion.
Though the bending of ring seal rib 6 can not just in time satisfactory specification on material and/or size from this to that lid, but, still can obtain good conformability by including an annular bending district 13 that forms by rectangular recessed joint between 7 and 8 two parts of ring seal rib 6.
Distortion is proceeded and form contact between the second portion 8 of ring seal rib 6 and internal-rib 5, and 4 structure stretches out internal-rib 5 from the top effectively.Internal-rib 5 is not main for purposes of the invention in fact, if other element can suitably change, internal-rib 5 just can save, so under this distortion situation, end 8 touches top 4.
In case second portion 8 touches internal-rib 5(or top 4) connect the contact portion that the further sport of lid 1 compressed and clamped the second portion 8 between container head 9 and top 4.When the motion that connects lid 1 is proceeded, just trend towards compressing the free edge of the ring seal rib 6 between container and the top 4, and the first 7 of ring seal rib 6 " drawn " tightly to container head 9, so that produce sealing closely around on the curved edge surface of container head 9 from its terminal annular surface 11 to stepped region 10.
In the preferred embodiment in the accompanying drawings, between ring seal rib 6 and skirt section 2, form a circular clearance 12 near top 4.This is when lid 1 uses on the container head 9, admits step 10, and makes ring seal rib 6 can do a kind of structure setting of necessary motion.
The size of ring seal rib 6 and the usefulness that can influence lid 1 significantly together with the design shape and its manufacturing materials of this ring seal rib 6.Not only sealing effectiveness but also plasticity, to withdraw from torque, reusability and degree of firmness all be important.For high density polyethylene (HDPE) shown in the drawings, the section thickness of second portion 8 section therebetween is about 0.47 millimeter, is 0.43 millimeter at 13 places, bending district, then is 0.37 millimeter at free end.Like this, section thickness generally towards the free end of ring seal rib 6 downwards but be not to attenuate gradually equably.
Figure 3 shows that another embodiment of the present invention, it has a very little internal-rib 5, and its bending district 13 forms by a deep notch or deep trouth, and other parts are roughly with identical shown in Fig. 1 and Fig. 2 embodiment.
The lid that is used for container can change (not shown), can seal without step.Importantly, must form a failure-free with container threads at the internal diameter at skirt section place and thread size engages.Moreover the internal diameter of the first 7 of ring seal rib 6 is pre and equals or be slightly larger than external diameter at the container neck of opening part.Gap 12 should be set at ring seal rib 6 places radially bend with some, so that when lid is used on the container, second portion 8 can be bent back in the first 7 equably.
Can be understood as for those skilled in the art, in not breaking away from spirit and scope described in the invention, can make various changes and modifications to the present invention, therefore, present embodiment can be thought illustrative and unconfined in every respect.
Claims (6)
1, a kind of sealing member that is used to seal the container that has the outside thread neck, described sealing member is to be molded as a single piece by a kind of elastoplast, and it has a top, the extended skirt section that complementary threads is arranged on the surface within it, with a ring seal rib that stretches out downwards from the top, this ring seal rib comprises a first adjacent with the top, and maintenance and the skirt section is adjacent or with the skirt section adjacency, and also comprise one away from the top adjacent with end first, the second portion that is the frustum shape, and this part radially inwardly ends at an annular free edge, first has a cylindrical basically inside face that has an internal diameter, internal diameter equals or only slightly greater than the external diameter of container neck, sealing member is to be connected to like this on the container, promptly engaged in portion's journey with neck thread at lid, the second portion that is the frustum shape will engage by the open end of neck, and on the inside face of the first that leans against rib of turning back, thereby between container neck and sealing member, form gas tight seal, it is characterized in that sealing ribs comprises a roughly joint between first and second parts of this rib, an inside face near rib is formed with ringwise basically bending district.
2, sealing member according to claim 1 is characterized in that, annular bending district is what to be formed by a concave junction roughly rectangular between first and second portion.
3, sealing member according to claim 1 is characterized in that, annular bending district is formed by the groove on the inside face that is positioned at rib at the joint between first and the second portion.
4, sealing member according to claim 1 is characterized in that, second portion is that to distinguish its free-ended zone generally be tapered downwards from one near bending on the cross section.
5, sealing member according to claim 4 is characterized in that, described second portion is general downward anisotropically tapered.
6, sealing member according to claim 1, it is characterized in that, described bending district is made of a deep notch or deep trouth, when connecting a container, the shape and size of rib are determined like this, promptly in sealing member and container threads engaging process, the free edge acies of rib produces distortion by container, and before the sealing member full engagement, contact with the inside face at top, or contact with the surface of the adjacent structure at top, and when sealing member engages with container fully, near the sealing ribs in free edge district between the top of the open end of container neck and sealing member, or and the adjacent structure in the top of sealing member between clamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108995 CN1027532C (en) | 1991-09-17 | 1991-09-17 | Linerless closure for carbonated beverage container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108995 CN1027532C (en) | 1991-09-17 | 1991-09-17 | Linerless closure for carbonated beverage container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1071135A CN1071135A (en) | 1993-04-21 |
| CN1027532C true CN1027532C (en) | 1995-02-01 |
Family
ID=4909587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108995 Expired - Lifetime CN1027532C (en) | 1991-09-17 | 1991-09-17 | Linerless closure for carbonated beverage container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027532C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7905820B2 (en) | 2004-09-01 | 2011-03-15 | Creanova Universal Closure Ltd. | Closure |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055664C (en) * | 1994-10-06 | 2000-08-23 | 弗郎茨·罗斯贝格 | Plastic colsure of edge rolled bottle |
| IT1403118B1 (en) * | 2010-12-09 | 2013-10-04 | Supercap S R L | STRUCTURE OF BOTTLE NECK AND ITS RELEASE CAP IN PLASTIC MATERIALS, PARTICULARLY FOR WATERS AND DRINKS. |
| CN103363505A (en) * | 2012-03-30 | 2013-10-23 | 海洋王照明科技股份有限公司 | Guide line sealing structure and lamp using same |
| TN2020000036A1 (en) * | 2017-08-31 | 2021-10-04 | Betapack S A U | Lid for containers with improved seal |
| US10532858B2 (en) * | 2017-09-06 | 2020-01-14 | Creanova Universal Closures Ltd. | Closure for container neck finishes |
-
1991
- 1991-09-17 CN CN 91108995 patent/CN1027532C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7905820B2 (en) | 2004-09-01 | 2011-03-15 | Creanova Universal Closure Ltd. | Closure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1071135A (en) | 1993-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6325226B1 (en) | Plastic screw closure | |
| US5020683A (en) | Plastic closure | |
| US4143785A (en) | Plastic vacuum sealing cap | |
| US6056136A (en) | Lug closure for press-on application to, and rotational removal from, a threaded neck container | |
| US4771905A (en) | Tight screw cap for threaded container neck | |
| US4712699A (en) | Package employing unique seal | |
| CN1083013A (en) | Linerless closure | |
| CA2303340A1 (en) | Closure system for containers | |
| AU5184096A (en) | Composite closure and method of making same | |
| CN1104167A (en) | Linerless closure for container | |
| CN87104228A (en) | Container with thread cap and seals | |
| US5423444A (en) | Linerless closure for carbonated beverage container | |
| CA1282033C (en) | Closures | |
| US4739893A (en) | Linerless plastic closure with integral sealing ring | |
| CN1027532C (en) | Linerless closure for carbonated beverage container | |
| US5100013A (en) | Plastic closure | |
| US4526284A (en) | Plastic closure with sealing fin | |
| US3595418A (en) | Closures for containers | |
| CA2202944A1 (en) | Closure plug with bonded gasket | |
| CN1406829A (en) | Thread improved sealed lid | |
| US3948405A (en) | Linerless container closure | |
| US4383620A (en) | Container and closure | |
| US3370732A (en) | Cap seal | |
| WO1989012584A1 (en) | Linerless closure for carbonated beverage container | |
| US3414151A (en) | Linerless plastic closures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: PRECISION VALVE(AUSTRALIA) CO., LTD. TO: CLOSED AND PACKAGING SERVICES CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Guernsey Island Applicant after: Closing and Packaging Service Co., Ltd. Co-patentee after: Rodney Malcolm Druitt Address before: New South Wales Australia Applicant before: Precision Valve Australia Pty Ltd. Co-patentee before: Rodney Malcolm Druitt |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110917 Granted publication date: 19950201 |