CN106660670A - Container and closure and manufacture thereof - Google Patents

Abstract

A container (10) and closure (20), e.g. for housing a carbonated beverage, are described as well as methods of manufacture of the container and closure. The closure is secured to the container by means of a projection (11,24) extending around the circumference of each part, the projections comprising a series of horizontal, circumferentially spaced apart elements (11,24) arranged so that the elements on the closure can pass though the spaces between the elements on the container and locate beneath them to secure the closure to the container. The elements of the projection on the container are separated from each other in the circumferential direction and do not overlap with each other in the vertical direction and the elements of the projection on the closure are separated from each other in the circumferential direction and do not overlap with each other in the vertical direction. The first portions have an upwardly inclined end (24D) at one end thereof and/or a downwardly inclined (24E) end at the other end. Upon rotation of the closure in one direction the downwardly inclined ends acts to drive the second portions (and hence the closure) downwards and upon rotation in the other direction the upwardly inclined ends acts to drive the second portions upwards. The closure has a bore component (22) which extends into the container and carries a sealing member (23), eg an o-ring, for providing a seal with an internal sealing surface of the container. The o-ring is driven down from a lead-in surface to engage the sealing surface as the closure is rotated.

Description

Container and closure member and its manufacture

Technical field

The present invention relates to a kind of container and closure member, more particularly to a kind of container for housing beverage.Container can be with It is various sizes, and may, for example, be wide opening container or its can be bottle.In some cases, container can be designed to use In receiving soda.The invention further relates to the use of the separate container together with and closure member, container and closure member with And the method for manufacture container and closure member.

Background technology

Container and the closure member for wide opening container and bottle are known, such as in the earlier application such as WO of applicant Those described in 2006/000774 and WO 2011/151630.Further development is disclosed in WO 2014/006418.This A little applications attempt providing one kind can closed vessel securely, while keep the closure member for making consumer relative easily remove, should The content of container for example may be at during transportation and/or when subjected to elevated temperatures high pressure.

Wide opening container can be used for storing beverage (or other guide thing), and can conduct if closure member is removed Drinking vessel.In some cases, closure member can also be designed so that it can be used for reclosing and/or sealing again appearance Device.Typical wide opening container has mouth of the diameter in the range of 55 to 65mm, but the term is also applied for diameter 45 The container of the mouth to 80mm.

Bottle is often used in pouring the beverage into storage beverage (or other contents) before drinking vessel.Conventional bottle Son, such as storing the bottle of beer and other drinks, the generally mouth of the diameter with about 28mm.

Although the closure member described in document above is in many cases gratifying, the present invention attempts providing Container and/or closure member is further simplified, and reduce material cost and/or manufacturing cost, while keeping closure member Performance, particularly open and close, reclose (in case of need) and exhaust (house soda situation Under) comfortableness and reliability improvement.Copending application GB 1407157.5 is more there is provided the preferred material for using Details, particularly for closure member and the more details of the preferred material of containment member.

The content of the invention

According to the first aspect of the invention, there is provided a kind of container and its closure member, the container have limit axis Opening and the outwardly prominent first component around the container, the first component includes multiple circumferentially spaceds Part I, each Part I has the element with elongated upper and lower surface, the element of the Part I The upper surface and the lower surface it is approximate horizontal in circumferential direction, the closure member has top section and skirt section portion Point, the skirt portion is included around the inwardly projecting second component of the inner surface of the skirt portion, and the second component includes The Part II of multiple circumferentially spaceds, each Part II has an element with elongated upper and lower surface, and described the The upper surface of the element of two parts and the lower surface are approximate horizontal in circumferential direction, the element of the Part II With enabling the Part II through the length at the interval the Part I and can be positioned at described A part of lower section, by the closure member container is fixed to.

Therefore, for the projection for including extending around the circumference of each part by the device that closure member is fixed to the container, A series of element of the projection including approximate horizontal circumferentially spaceds, these elements are arranged so that the element on closure member can be with Element lower section by the interval between the element on container and on container by closure member being fixed to container.On container The element of projection is separated from one another in circumferential direction and does not overlap each other in vertical direction.Similarly, it is prominent on closure member The element for rising is separated from one another in circumferential direction and do not overlap each other in vertical direction.

Preferably, in the Part I each (or each in the Part II) has in one end thereof Oriented upper inclined end portion and/or another end has downward-sloping end at it.The end that is inclined upwardly of the Part II And/or downward-sloping end preferably respectively extends beyond the described elongated upper and lower surface of the Part II.

Preferably, when the closure member is rotated in a first direction around axis A, the downward-sloping end be used for relative to The Part I drives downwards the Part II, wherein, when the closure member is rotated in a second direction around axis A, institute State and be inclined upwardly end for driving up the Part II relative to the Part I.

Preferably, the top section of the closure member has for extending to hole portion part in vessel port and in the hole It is used to provide the containment member of sealing with the interior sealing surface of the container on part.

Preferably, the downward-sloping end is used to connect the Part II in unsealed position from the containment member The position for touching the container is driven into downwards the position that the containment member sealingly engages the interior sealing surface of the container.

The containment member may include the O-ring being arranged in gland (gland).

Preferably, the closure member can be in the first fixing seal position and the second of the exhaust that can carry out the container Move between fixed exhaust position.

According to a further aspect in the invention, there is provided a kind of container and its closure member, the container have limit axis Opening and the outwardly prominent first component around the container, the first component includes the of multiple circumferentially spaceds A part, each Part I includes the element with upper and lower surface, the upper surface substantially water in circumferential direction Put down and the lower surface is approximate horizontal in circumferential direction, the closure member has top section and skirt portion, the top Portion part has for extending to the hole portion part in vessel port and on the hole portion part for the interior sealing with the container Surface provides the containment member of sealing, and the skirt portion is included around the second inwardly projecting structure of the inner surface of the skirt portion Part, the Part II of the second component including multiple circumferentially spaceds, the closure member can be by the Part I and the Interaction between two parts is fixed to the container, the closure member can first position, the closure member relative to The container be rotated in a first direction and move down after the second place with the closure member relative to the container along institute State first direction further rotate and the 3rd position after the closure member is moved further downward relative to the container it Between move, in the first position, at least a portion of the Part II engages the upper surface of the Part I, described The second place, the containment member contacts the element and described first of the container and the Part II in unsealed position Grid alignment between part, in the 3rd position, the containment member is moved down into and sealingly engages the sealing The element of surface and the Part II is positioned at the lower surface of the Part I lower section and the Part I Contact.

This closure member and container may be disposed so that closure member is second when closure member is initially placed on container Component is flatly seated on container in the case of being held in first component.After the horizontal rotation of closure member, closure member Move to the position that containment member is held on the oral area of container.Further horizontal rotation causes closure member to be driven downwards, Therefore, containment member is moved down into sealing station and second component is located at first component lower section so that closure member is fixed into appearance Device.Other preferred features are below described.

As described above, the Part I of the first component on container is separated from one another in circumferential direction and in vertical direction On do not overlap each other.Similarly, the Part II of the second component on closure member is separated from one another in circumferential direction and is hanging down Nogata does not overlap each other upwards.

Preferably, the sealing surfaces are roughly parallel to the axis, and the container thereon end has and leads to The inclination of the sealing surfaces imports surface.

Preferably, in the second place, the containment member contacts the importing surface.In the appearance of accommodating soda In the case of device, this is exhaust position.

Preferably, when the closure member is moved down into the 3rd position with the mobile closure member from the second place When being sealingly engaged with the sealing surfaces, the containment member is compressed between the container and the hole portion part.

The closure member can be arranged to be allowed to from the described 3rd by rotating in a second direction around the axis Position moves to the second place, is subsequently moved to the first position and removes from container, i.e. is to be fixed to closure member The reversion of the mode of container.

In preferred arrangement, particularly with the use of accommodating soda, the skirt portion of the closure member is included separately One inwardly projecting component, another inwardly projecting component includes the Part III of multiple circumferentially spaceds, described 3rd Each in point has the low upper surface of the height of the upper surface than the Part II, and the Part III is arranged to work as institute The lower surface that the Part I is engaged when closure member is in exhaust position is stated, i.e., described Part III is arranged to when the closing Part engages the lower surface of the Part I when being in the second place.

In preferred arrangement, each in the Part II has an end angled downwards, it is described downwards into The end of angle is arranged to engage described first when the closure member rotates from the second place along the first direction Partial first end face, vice versa, and interacts to drive institute downwards with the first end face of the Part I State closure member.Therefore the simple rotation of closure member causes closure member to be driven downwards to the container, therefore, containment member is from exhaust Position moves to sealing station.

Similarly, each in the Part II preferably has end angled up, the angulation upwards The end of degree is arranged to be connect when closure member rotation (contrary with first direction) along second direction from the second place Close the second end face of the Part I, vice versa, and with the second end face of the Part I interact with The closure member is driven up, therefore, the containment member is moved to exhaust position from the sealing station.

The Part II can be vertically through the interval between the Part I, it is preferred that be arranged to having Angle ground is through the interval the Part I.

The circumferential lengths of the approximate horizontal upper surface of the Part II are preferably the substantially water of the Part I At least the 50% of the circumferential lengths of flat lower surface or at least 75%.

Most preferably, in the case of for housing the container of soda, the Part II it is approximate horizontal upper The circumferential lengths on surface are roughly the same with the circumferential lengths of the approximate horizontal lower surface of the Part I.

Preferably, each Part I has the circumference substantially similar with the circumferential lengths of the element of Part II long Degree, and preferably, when the closure member is fixed to the container, the element contact described first of the Part II The substantially whole circumferential lengths of the partial lower surface.

For the wide opening container of accommodating soda, the circumferential lengths of the combination of the Part I are preferably the appearance Device arranges thereon the substantially half of the excircle at the position of the Part I.

The first component preferably separates the distance in the range of such as 9 to 12mm or at other with the upper end of container In the case of separate distance in the range of 6 to 16mm.

Container described herein and closure member are particularly well-suited to wide opening container as defined herein, but can also be used for other The container of size, such as with the bottle of relative narrower opening.

Container preferably passes through injection molding process, subsequently by the blow moulding process to the part below first component Formed.

In outer surface of the container of preferred form below the first component have groove, the first component and/or The groove is provided with holding meanss, and the holding meanss are transferred to apparatus for blow moulding in the container from injection molding apparatus When and/or can keep during the blow moulding process container.Therefore, first component has double action：It was both A part as the device for being used to that closure member to be fixed to container, and the part as holding meanss.

Preferably, closure member or its at least partially by with more than 3000MPa stretch modulus (Young's modulus), be more than The plastic material of the bending modulus of 3000MPa and the yield stress more than 70MPa is formed.For the preferred material of this closure member It is polyformaldehyde (POM).Container is preferably formed by the plastic material including polyethylene terephthalate (PET).

In some applications, container and/or closure member can be formed by metal.This causes wall thickness and thus be accordingly used in shape Amount into closure member and/or the material of container is reduced, so as to reduce its weight and/or cost.Metal closure can pass through one Individual or multiple pressing operations are formed and shaped.

As mentioned above, the inner surface of container preferably includes the conical butt importing table of the oral area of neighbouring container Face, its surface inclines such as 10 to 30 degree and the generally vertical dimension with about 2mm relative to the axis of container.Import table Face is bore preferably opened to almost parallel lateral cylindrical surface, and the surface on the lateral cylindrical surface is roughly parallel to the axle Line.The diameter of cylindrical surface is roughly the same with less (minimum) end of fi-ustoconical surface.For with soda one The closure member for using is acted, containment member is arranged to engage the substantial cylindrical surface and on closure member and the substantial cylindrical surface Between provide liquid-tight and gas-tight seal.

In some cases, it can be possible to expect to arrange multiple exhaust grooves for separating to contribute to container in surface is imported Exhaust, oral area of the groove from the inside of container towards container extends.

It is as indicated above, for carbonating application, closure member preferably can the first fixed position with relative to the One position is moved between elevated second fixed position, and in the second place exhaust of container can be carried out.

Containment member is preferably O-ring packing.Term as used herein O-ring is construed as including thering is circle The annular solid of the elastomeric material of cross section (or other cross sections).This O-ring is usually located at gland, and (it generally can be by recessed Groove is limited by the recess with two or more faces) in.O-ring is preferably able to move in gland or deform, with energy It is enough more closely to seal (such as above referenced WO with sealing surfaces in response to the pressure reduction between the inside and outside of container 2011/151630 description).Although the O-ring of this form is preferred, the term is it should also be appreciated that to cover imitation The seal of the other forms of O-ring and it is arranged between the part of two relative stiffnesses (have the material different from seal) (such as by the Overmolded formation of elastomeric material) other forms flexible sealing material, the material can be at these There is provided between part gas-tight seal.O-ring is preferably formed by nitrile rubber (NBR).In above referenced GB 1407157.5 In provide further details.

As used herein direction term such as upwards, downward, upper and lower, it is understood that refer to be related to relatively In the direction to stand on the container on horizontal surface through the substantially vertical modes of the axis A of its opening (unless context is another It is distinctly claimed outward).

The invention further relates to a kind of container, for being used together to provide container as described above and envelope with closure member Closing member, and a kind of closure member for providing container as described above and closure member.

The invention further relates to be used to accommodate the container of soda and the purposes of closure member as described above.

According to a further aspect in the invention, there is provided one kind manufacture makes when container as described above and closure member is provided The method of container, methods described includes injection molding process, is followed by blow moulding process.

Preferably, in outer surface of the container below the first component have groove, the first component and/or The groove is used as holding meanss, and the holding meanss are when the container is transferred to apparatus for blow moulding from injection molding apparatus And/or can keep the container during the blow moulding process.

Preferably, closure member is formed by injection molding process.Closure member can be formed by various plastic materials, but preferably Ground is formed by polyformaldehyde (POM).

According to a further aspect in the invention, there is provided a kind of method of manufacture container closure member, the container has and limits Go out the opening of axis, the closure member has top section and skirt portion, and the top section has for extending to container Hole portion part in opening, it is used in the radially outward-oriented surface of the hole portion part to receive the recess of containment member, and The skirt portion has around the inwardly projecting holding member of the inner surface of the skirt portion, and the holding member includes multiple The part of circumferentially spaced, the closure member is formed by injection molding process, and the injection molding process is comprised the following steps：

Injection molding tool is provided, the injection molding tool has die cavity and tool core, and the die cavity is used to form institute State closure member top section and skirt portion outwardly facing feature, the tool core includes at least forming the hole The internal part of the recess of part and the external component at least forming the holding member of the skirt portion,

The internal part is arranged so that once the closure member has been formed, then the internal part can be from described Closure member is substantially axially extracted out,

The external component includes collapsible core so that once the internal part has been pumped out, then the collapsible core Part can radially inwardly move, in the space occupied by the internal part before moving at least in part so that The collapsible core departs from the holding part so that the collapsible core can subsequently from the closure member substantially axially Extract out.

Preferably, the recess forms the gland for receiving O-ring containment member.

In a preferred method, the neighbouring recess is formed for the containment member to be axially retained in the recess Multiple resilient fingers for projecting radially outwardly, the finger piece is bent radially inward with when the internal part is axially taken out The internal part is allowed to depart from therewith when going out.

Preferably, the radially part of the hole portion part and the radially innermost portion of the holding member of the skirt portion Between spaced radial be 4.0mm or less, most preferably 3.9mm or less.

Preferably, the holding part projects at least R mm from the inwall of the skirt portion, and wherein R is at least 1.0mm, Preferably at least 1.3mm.

In a preferred method, the extraction of the internal part provide allow the external component it is described partially radially Move inward at least R and preferably R is plus at least interval of 0.5mm, to allow the closure member to shrink if being formed.

In a preferred method, the closure member is molded of plastic material, and the rigidity of the plastic material for example needs to make With collapsible core so that the core is separated with the holding part.The plastic material can include polyformaldehyde.

According to a further aspect in the invention, there is provided a kind of container closure member, the container have limit opening for axis Mouthful, the closure member has top section and skirt portion, and the top section has for extending to the hole in vessel port Part, it is used in the radially outward-oriented surface of the hole portion part to receive the recess of containment member, and the skirt section portion Divide and have around the inwardly projecting holding member of the inner surface of the skirt portion, the holding member includes multiple circumferentially spaceds Part, wherein, the closure member is manufactured by method as described above.

Preferably, the recess forms the gland for receiving O-ring containment member.

Preferably, the neighbouring recess is provided for the multiple footpaths being axially retained at the containment member in the recess To resilient fingers outwardly.

The hole portion part radially part and the skirt portion holding member radially innermost portion between Spaced radial can be 4.0mm or less, it is therefore preferable to 3.9mm or less.

The holding part can project at least R mm from the inwall of the skirt portion, and wherein R is at least 1.0mm, excellent Selection of land is at least 1.3mm.

The top section and skirt portion can be integrally formed by the plastic material including polyformaldehyde.

The present invention's preferably will be apparent according to the description of description below and appended claims with optional feature.

Description of the drawings

Referring to the drawings, embodiments of the invention only will by way of example be described now, wherein：

Figure 1A and Figure 1B show what is observed from the top of the container for using in the first embodiment of the present invention and side Perspective view；

Fig. 2A and Fig. 2 B show and observed from above and below the closure member for using in the first embodiment of the present invention Perspective view；

Fig. 3 A show the closure member of Fig. 1 when closure member is moved into being engaged with the container of Fig. 1, and Fig. 3 B are shown when fixation To closure member during container；

Fig. 4 to Fig. 6 shows the schematic diagram and cross-sectional view of the reduced form of the container shown in Fig. 1 and Fig. 2 and closure member, To illustrate the Main Stage of the process that closure member is fixed to container：Fig. 4 A and Fig. 4 B are related to preloading phase, Fig. 5 A and Fig. 5 B It is related to loading (or exhaust) position, Fig. 6 A and Fig. 6 B are related to sealing station；

Fig. 7 to Figure 12 shows that the closure member of Fig. 2 is fixed to the more detailed sequence of steps of the container of Fig. 1, and shows Closure member and container are in the cross section of the relative position in each stage；

Fig. 7 A and Fig. 7 B are related to the first preloading phase；

Fig. 8 A and Fig. 8 B are related to the second preloading phase；

Fig. 9 is related to initial loading stage；

Figure 10 A and Figure 10 B are related to initially drive the decline stage；

Figure 11 is related to sealing station；With

Figure 12 A and Figure 12 B are related to locked position.

Figure 13 to Figure 15 show from container remove closure member the step of order and show closure member and container exhaust The cross section of the relative position in stage：

Figure 13 is related to initially remove the stage；

Figure 14 is related to expel the stage；

Figure 15 A and Figure 15 B are related to exhaust phase；

Figure 16, Figure 17 and Figure 18 are related to other displace the stage；

Figure 19 to Figure 21 shows the container and envelope similar to Fig. 4 to Fig. 6 related to the container for noncarbonated beverage products The container of another reduced form and the schematic diagram of closure member and cross-sectional view of closing member：Figure 19 A and Figure 19 B are related to preload rank Section, Figure 20 A and Figure 20 B are related to loading position, and Figure 21 A and Figure 21 B are related to sealing station；

Figure 22 is the cross section of another embodiment of closure member of the invention；

Figure 23 is the amplifier section of the closure member of Figure 22, with explanation this closure member according to a further aspect in the invention Manufacture method；

Figure 24 A and Figure 24 B are the side views of a part for container, show container compared with the container shown in Figure 1B Alternative elaboration；

Figure 25 A and Figure 25 B show two further embodiments of the closure member of the invention corresponding to Figure 22 Cross-sectional view；With

Figure 26 shows the cross-sectional view of the container being used together with the closure member of Figure 25.

Specific embodiment

Figure 1A and Figure 1B show the wide opening container 10 for using in the first embodiment of the present invention.Container have limit The opening 10A of axis A, and with the outwardly prominent first component 11 around container 10, first component includes many The Part I 11A (being in the example shown four) of individual circumferentially spaced, each Part I 11A has upper surface 11B, following table Face 11C, first end surface 11D and the second end surface 11E.Upper surface 11B is approximate horizontal in circumferential direction, but can be Bend in the radial direction or incline.Lower surface 11C is also in circumferential direction approximate horizontal, and in shown embodiment In, it is approximate horizontal in radial directions while general planar.The shape of end surface is further described hereinafter with reference to Fig. 7 to Figure 18 Shape and effect.

Antelabium spaced portions formation interval, outwardly of first component 11, antelabium may be located at or close container 10 upper end, or as in an illustrated embodiment, with the upper end of container 10 separate in the range of such as 9 to 12mm away from From.Part I 11A is separated from one another in circumferential direction and does not overlap each other in vertical direction.

The upper end of container 10 has importing surface 12, imports surface and inclines and lead in container 10 relative to axis A The almost parallel lateral cylindrical part 13 (referring to Fig. 4, Fig. 5 and Fig. 6) on surface.Import surface and preferably there is substantially butt Cone shape and the angle relative to axis A in the range of 10 to 30 degree.Multiple exhaust grooves 14 or passage preferably set Put at the position separated around the circumference for importing surface in order to the exhaust (described further below) of container.

Container shown in Fig. 1 also has process groove 15 in its outer surface, for example to wash in manufacture and for example when container It is easy to the process of closure member when during the subsequent process such as washing, filling, closing by automated machine.In other embodiments (not shown), it may not be necessary to process groove.

Container is generally formed by plastic material such as polyethylene terephthalate (PET), and generally with two-stage into Type technique is formed：Preformed member is formed in the first injection mo(u)lding stage of the feature for forming the top of groove 15, second is followed by and is blown In the molded stage, in the second blow moulding phase, preformed member is blow molded to form the container shapes of the lower section of groove 15.Interval lip Edge 11 and/or groove can be used for keeping preformed member during blow moulding phase.Pet container be usually provided with for instance in The barrier material of the form of the shallow layer of silica or carbon or the form in laminar structure, is permeated with improving it to gas The repellence (the especially entrance of oxygen or the discharge of carbon dioxide) of property.

Container can be being formed by the other materials of such as glass or metal or the combination of material.

Fig. 2A and 2B show the closure member for using in the first embodiment of the present invention.Closure member includes top section 20 With the skirt portion 21 from top section.Top section 20 has from extension below and extends to container 10 when in use In hole portion part 22.Hole portion part 22 carries containment member 23, such as O-ring (referring to Fig. 4 B) so that hold when closure member is arranged on When on device 10, containment member 23 provides sealing (referring to Fig. 6 B) between the interior sealing surface 13 and hole portion part 22 of container 10.O shapes Ring is located at and is arranged in the groove on the outer surface of hole portion part 22 or gland 23B.In above referenced WO 2011/151630 The further detail below of O-ring and gland there is provided appropriate format.It should be noted that the wall of gland should be smooth with true Protect gratifying sealing, and specifically, mould closed line should not be included (this makes it difficult to provide smooth surface).With In the O-ring used with the wide opening closure member generally cross-sectional diameter with 2 to 3mm.Sealing surfaces 13 have be enough to house (example Caused by such as due to the pressure change in container) O-ring, relative to some axial lengths for vertically moving of container, generally has At least axial length of 8mm, and up to 13mm in some cases.

The skirt portion 21 of closure member is provided with the second component 24 protruded inwardly from around its inner surface, the second component Including the Part II 24A (being in the example shown four) of multiple circumferentially spaceds.Each in Part II has upper table Face 24B, lower surface 24C, the end angled downwards with first end surface 24D and with the second end surface 24E's End angled up.Upper surface 24B is approximate horizontal in circumferential direction, and in an illustrated embodiment, in radial direction side Approximate horizontal upwards and general planar.Lower surface 11C is also in circumferential direction approximate horizontal, but can be in radial direction Upper bending or inclination, such as shown in Fig. 7 B and Figure 12 B.Respectively circumferentially direction is downwardly and upwardly for end surface 24D and 24E It is angled, and in an illustrated embodiment, these surfaces respectively extend beyond the lower surface 24C and upper table of Part II 24A Face 24B.The effect of angled end and end surface 24D and 24E is further described hereinafter with reference to Fig. 7 to Figure 18.Institute In the embodiment shown, other inwardly projecting component is provided with skirt portion, the component includes multiple circumferentially spaceds Part III 25A.Each in Part III also has upper surface 25B, and upper surface is approximate horizontal in circumferential direction, and In an illustrated embodiment, approximate horizontal in radial directions and general planar.Upper surface 25B is in lower than upper surface 24B Highly place (observing when 20 highest of top section of closure member), the perpendicular separation between upper surface 24B and 25B is typically about 2.5 to 4.0mm.Part III 25A also has angled side 25C and 25D.

Part II 24A is separated from one another in circumferential direction, and does not overlap each other in vertical direction.

Part III 25A is also separated from one another in circumferential direction, and does not overlap each other in vertical direction, but they Can be at least overlap to a certain extent with Part II 24A in vertical direction.

Fig. 2 B also show riblet 26, and when being placed on container, riblet contributes to preventing closure member from inclining, and therefore has Help keep closure member level.

Closure member can be fixed to container 10 by the interaction between Part I 11A and Part II 24A.Fig. 4 To Fig. 6 phase interactions provided when closure member is fixed to container between Part I and Part II (described further below) With and O-ring packing position schematic diagram.

In shown arrangement, closure member can rotate and downwards in first position (Fig. 4), closure member relative to container 10 The second place (Fig. 5) after movement further rotate and move further downward relative to container 10 with closure member after the Move between three positions (Fig. 6), in the first position, Part II 24A (or at least a portion of Part II) engagements the The upper surface 11B of a part of 11A, in the second place, containment member 23 contacts container 10, and second in unsealed position Grid alignment between part 24A and Part I 11A, in the 3rd position, containment member 23 moves down into sealing Ground engagement container sealing surfaces 13, and Part II 24A be located at Part I 11A lower section and with the following table of Part I The substantially whole circumferential lengths contact of face 11C.

In the 3rd position maximize the contact between the upper surface 24B of Part II and the lower surface 11C of Part I It is important.Firstly, it is desirable to the length for making Part I 11B is minimized, so that impact of the Part I to the outward appearance of container is most Secondly littleization and Part I contact with the lip of the user drunk from container is minimized, expects to make full use of the Contact between a part of 11A and Part II 24A, to secure the closure on container, specifically to resist (example Such as, accommodate soda and/or in the case of undergoing high pressure in container) due to the high pressure in container caused by closure member to Upper pressure.

Embodiment shown in Fig. 1 and Fig. 2 is designed for use with soda.For container (and the therefore Jing of given diameter By the area of the closure member of internal pressure), it may be determined that the upper surface 24B of Part II and the lower surface 11C of Part I it Between desired minimal-contact area.For example, for the accommodating carbon of the internal diameter (and external diameter of about 64mm) with about 62mm Acid beverage and undergo up to 40 DEG C temperature wide opening container, expect that the overlapping area is at least of about 100mm².For having The embodiment of four Part I (and four Part II), the length each in four Part I with 25mm, thus the The circumferential lengths of the combination of a part of 11B be of about 100mm (it represents about the 50% of container excircle at this point) and And in the case that the radial projection of four Part I is for about 1.0mm, can for example realize this point.Preferably avoid Part I The bigger radial projection of 11B, to make it to the contact of the lip of user drunk from container and to affect therefore to minimize.Also Can be by the way that Part I 11B be positioned at the position separated with the upper end of container, such as in the container of the embodiment Top lower section 10mm at reducing impact of the Part I to the lip of user.

For the embodiment with less internal diameter (e.g., from about 50mm), the upward pressure on closure member is less, such that it is able to For example three are for example reduced to reducing the by using four shorter Part I or by reducing the quantity of Part I The circumferential lengths of the combination of a part of 11B.

The combination of the needs of Part I circumferential lengths (Part I radial projection keep it is identical, such as 1mm's In the case of) generally proportionate with the area of closure member.For the area of closure member reduces 35%, the circumference of the combination of Part I Therefore length can reduce about 35%, that is, be reduced to about 65mm²Overlapping area.In the example given, this can be by Four Part I of the length with about 16mm or three Part I of the length with about 22mm are provided.

Fig. 3 A show movement of the closure member towards container.Initially, closure member is moved axially towards container, but, such as will Further explained below, closure member is subsequently relative to container (around axis A) rotation being allowed to be fixed on container.Fig. 3 B show To go out once be arranged on container and fixed closure member to the container.

As mentioned above, Fig. 4 to Fig. 6 shows the signal of the reduced form of container shown in Fig. 1 and Fig. 2 and closure member Figure and viewgraph of cross-section, to contribute to illustrating that closure member is fixed to (either for keeping soda or non-carbonic acid drink Material) Main Stage of movement involved by container.Using identical reference, it should be noted that with subsequent drawings In feature shown in the embodiment that illustrates compare, show in feature in the form of high-level schematic in the drawings A bit.

Fig. 4 A and Fig. 4 B are related to preloading phase, wherein, the Part II 24A of closure member (or at least the one of Part II Part) it is shelved on the upper surface 11B of the Part I 11A of container.It is transversal that Fig. 4 B illustrate that the line B-B in Fig. 4 A is intercepted Face.In the position, O-ring packing 23 and the container of closure member separate.

Subsequently closure member is set to rotate and move down from the position shown in Fig. 4 (in either direction), until the of closure member Till grid alignment between two part 24A and the Part I 11A of container, as shown in Figure 5.This schematically show show work as Part II passes through the Part II 24A during interval between Part I 11A.Such as will further retouch below in relation to Figure 10 A State, in the case where Part I and Part II are angled or curved in radial directions, Part I and Part II Between vertical relation can be with more complicated, side view will illustrate Part I and Part II to overlap, such as such as Fig. 9) in show Go out.Fig. 5 shows Part II 24A, once Part II is moved into and the grid alignment between Part I 11A Position, then therefore Part II is then able to be spaced by those.As shown in Figure 5A, the circumferential lengths of Part II 24A are less than Interval between Part I 11A, thus Part II can by these interval, but it is as directed, Part II is preferred Ground has the length substantially similar with these intervals.Fig. 5 B are the sections that the line C-C in Fig. 5 A is intercepted.

As shown in Figure 5 B, in the position, O-ring 23 is contacted with the importing surface 12 of container 10, and is supported in the position (or helping support) closure member.

From the position shown in Fig. 5, closure member is moved further downward to the container.In the simple-arranged shown in the schematic diagram In, closure member can axially further be pressed to the container.During this is moved down, O-ring 23 is compressed in hole portion part Between 22 and container, and by contiguously moving to sealingly engage the sealing surfaces 13 of container with importing surface 12.At this Position, the lower surface 11C of the upper surface 24B and Part I 11A of Part II substantially flush (or slightly thereunder).Subsequently Closure member is set to rotate relative to container around axis A so that the Part II of container is positioned at the Part I lower section of container, such as schemes Shown in 6A.In (described below) other arrangements, the movement of second component can be it is substantially diagonal, therefore second component to Lower movement simultaneously while rotates relative to container.Fig. 6 B are the sections intercepted along the line D-D of Fig. 6 A.

In the 3rd position, closure member is fixed on container and can not move up relative to container, unless closure member Rotating to Part II can pass through the position that the interval between Part I moves back up.It is additionally, since the upper of Part II The lower surface of surface and Part I is approximate horizontal, so for example because of the upward pressure on closure member caused by the high pressure in container There is no any trend for making closure member rotate relative to container.As shown in the drawing, the upper table of each in Part I Face 11B also contacts the substantially whole length of corresponding Part I, and wherein upper surface 11B is positioned under corresponding Part I Side.As mentioned above, this maximizes the overlapping area between Part I and Part II, therefore, overlapping area can use In upwards power of the opposing (for example, caused by due to the high pressure in container) on closure member.In addition, it means that connect to discharge this Close, need to make closure member rotate enough distances relative to container, so that the whole length of Part II does not connect with Part I Touch.

Therefore, as shown in Figures 4 to 6, Part II 24A is originally located in the top of Part I 11A, subsequently mobile, So that Part II is by the interval between Part I and last arrival Part II is located at the position below Part I 11A Put.The upper surface 24B of Part II 24A over the whole length (or at least Part II 24A inclined end portion 24D with Between 24E) approximate horizontal and general planar, therefore Part II can be in the lower surface 11C lower horizontals of the 11A of Part I Ground slides, and lower surface 11C is also substantially water in its whole length (or at least between the end 11D and 11E of Part I 11A) Flat and general planar.

In order to the fixed position shown in closure member from Fig. 6 is discharged, closure member is set to rotate so that second relative to container Divide and depart from from below Part I, the position being subsequently moved upwards up to Part II shown in Fig. 5.Closure member do not protected Hold in the simple-arranged of the other device of exhaust position, closure member can be lifted from container and be taken away.In other arrangements, will Needs are further rotated so that closure member is discharged from exhaust position.

Fig. 7 to Figure 12 shows more detailed sequence of steps, and by these steps, all closure members as shown in Figure 2 are consolidated Surely all containers (being designed to soda) as shown in Figure 1 are arrived, and shows closure member and container in each stage Relative position cross section, the especially position of O-ring packing.Sequence of steps is based on the signal above with respect to Fig. 4 to Fig. 6 The order (but being changed to a certain extent) of figure description.

Referring back to Fig. 1, it will be noted that, Part I 11A has inclined end surface 11D and 11E.It is preferred that Ground, end surface is relative to horizontal line into about 45 degree.As shown in figure 1, end surface 11D can be extended to from upper surface 11B Lower surface 11C.However, as shown in Figure 1B, end surface 11E can not extend to upper surface 11B from lower surface 11C.

The end surface 11D and 11E of Part I can also have other forms (referring to Figure 24 A described below extremely 24C)。

Also, as described in regard to Fig. 2 B, Part II 24A has the inclined end portion of strap end portion surface 24D and 24E, end Portion surface 24D and 24E extend beyond lower surface 24C and upper surface 24B, such as shown in Fig. 2 B and Fig. 7 A.Hereinafter will enter One step describes these.

Fig. 7 to Figure 12 also show the Part III 25A shown in Fig. 2 B.As mentioned above, Part III 25A is arranged on In being intended to the closure member being used together with the container of accommodating soda, and its effect will be closed when positioned at exhaust position Part is maintained on container (as described further below).

In Fig. 7 A, Fig. 8 A, Fig. 9, Figure 10 A, Figure 11 and Figure 12 A, container and closure member are shown in dashed lines, and Part I 11A, Part II 24A and Part III 25A are shown in solid, to project the interaction between them.Fig. 7 B, Fig. 8 B, Figure 10 B and Figure 12 B show positioned at Fig. 7 A, Fig. 8 A, the closure member of the corresponding position in position of Figure 10 A and Figure 12 A and The cross section of container.

Fig. 7 A and Fig. 7 B show the closure member in the first preloading phase, wherein, Part III 25A is shelved on first On the upper surface 11B of part 11A (Fig. 7 A show due to the upper surface 11B and Part III 25A of Part I lower surface such as These parts for being angled or curved in radial directions and overlapping in vertical direction shown in the sectional view of Fig. 7 B). The position, O-ring 23 separates with container 10.

The position shown in closure member from Fig. 7 around axis A relative to container 10 along fastening direction (in the embodiment shown Be clockwise) rotation after, during the interval between Part I 11A is fallen under Part III 25A, until Part II 24A's Downwards angled ends rest is on the upper surface 11B of Part I 11A, as shown in figs. 8 a and 8b.In second pre-add Position is carried, as directed, O-ring 23 still separates (but only separated by little distance) with container 10.The position (or shown in Fig. 7 Position) corresponding to the first position mentioned above with respect to Fig. 4.

When the position shown in closure member from Fig. 8 further rotates along closing direction, Part II 24A is along Part I The upper surface 11B of 11A slides, until its end being at an angle of downwards comes off and Part II 24A from the end of upper surface 11B Lower surface 24C is shelved on the upper surface 11B of Part I 11A till (as shown in Figure 9).It should be noted that Fig. 9 shows Because the upper surface of Part I and the lower surface (as seen in this fig. 17b) of Part II bend in radial directions or angled And the Part I that overlaps to a certain extent in vertical direction and Part II.Even so, Part II is shelved on Support on the upper surface of a part and by the upper surface of Part I.

In the position, closure member is more lower slightly than the position shown in Fig. 8 A.Also, as will be seen from Fig. 9, Part II 24A The length in (circumferentially direction) the or at least length of its horizontal component is preferably approximately similar to the length of Part I 11A.

As will also be seen that in fig .9, below the position, Part III 25A engagement Part I 11A.

When the position shown in closure member from Fig. 9 further rotates along fastening direction, Part II 24A is along Part I Upper surface slide and Part III 25A slide along below Part I 11A.This moves horizontally continuation, until second (as mentioned above, end surface preferably extends beyond lower surface to the end surface 24D of the end angled downwards divided Till 24C) reaching the end surface 11E of Part I 11A.Subsequently, the gap between Part II 24A and Part I 11A Alignment, as shown in Figure 10 A.It should be noted that the relative vertical position of closure member and container substantially phase in Fig. 9 and Figure 10 A Together, and as directed, Part III 25A is still located on Part I 11A lower sections.

Figure 10 B are the closure members and the cross-sectional view of container for being located at the position shown in Figure 10 A.As will be seen, in the position Put, O-ring is contacted with the importing surface 12 of container 10, and Part I 11A is clipped in Part II 24A and Part III 25A Between.The position of the closure member shown in Figure 10 A and 10B is corresponding to reference to the second place with regard to Fig. 5.To further retouch Ru following State, this also corresponds to the exhaust position when closure member is removed from container.

In two rotation positions shown in Fig. 9 and Figure 10, therefore closure member passes through to shelve relative to the upright position of container The Part II 24A of the closure member on the Part I 11A of the container and/or O being shelved on the importing surface 12 of container 10 Shape ring 23 and determine.

Will additionally note that from Figure 10 A, the length of Part II (circumferentially direction) or at least length of its horizontal component Degree is approximately similar to the length at the interval between (and being slightly less than) Part I 11A.This is necessary, so that Part II 24A can be moved down by the interval between Part I 11A, as will be described below (even if as will be described, they to Under diagonally move).

When the position shown in closure member from Figure 10 further rotates along fastening direction, Part II it is angled downwards The bevelled end surfaces 24D of end slides into the bevelled end surfaces 11E lower sections of Part I, therefore, closure member is when rotated It is driven downwards relative to container.Preferably, end surface 24D is inclined with 11E with roughly the same angle, such as shown About 45 degree in embodiment, therefore, Part II 24A is moved down with this angle relative to axis A.Therefore, closure member Rotation is allowed to driving downwards, until the bevelled end surfaces of the bevelled end surfaces 24D and Part I 11A of Part II 24A Till the bottom of 11E departs from.Subsequently, 11C is flushed below the upper surface 24B and Part I 11A of Part II 24A, such as Shown in Figure 11.When further rotating from the position, Part II 24A slides along level below Part I 11A, until End angled up with end surface 24E (it extends beyond upper surface 24A) engages the end surface of Part I 11E and stopping further rotate till, as illustrated in fig. 12.Will be seen that, in the position, Part II 24A is located at first Part 11A lower section and the approximate horizontal upper surface 24B and Part I 11A of Part II 24A it is approximate horizontal below The substantially whole length contact of (in circumferential direction) of 11C.Therefore, Part II 24A is securely positioned under Part I 11A Side, and contact area (its opposing caused closure member due to the high pressure in container between Part II and Part I Move up) it is maximized.

Figure 12 B show the cross section of the closure member in the position shown in Figure 12 A and container.As will be seen, O-ring From importing, surface 12 (position shown in Figure 10 B) is downward to be driven to sealingly engage around the substantial cylindrical inside container Sealing surfaces 13.This is related to the compression of O-ring, wherein, realized by the rotation of closure member and cause what closure member was moved down Significant mechanical advantage is provided in terms of power of the apparatus above needed for compression O-ring is provided, especially for (such as with bottle cap Compare) closure member has for the wide opening closure member of relatively large diameter.

Position shown in Figure 12 A and Figure 12 B is corresponded to regard to the 3rd position described in Fig. 6.

To understand from the above description, when the position shown in closure member from Figure 10 A rotates to the position shown in Figure 11 When, closure member is driven downwards.This rotates past relatively small angle (depending on the length and angle of bevelled end surfaces 11D) And generally can be in the range of 5 to 15 degree.

And will be appreciated by, the vertical range that closure member drives downwards is determined by the angle and length of end surface 24D, And end surface 24D exceedes the extension of lower surface 24C enables closure member to be driven downwards enough distances, therefore O-ring 23 are driven downwards and are sealingly engaged with sealing surfaces 13 from surface 12 is imported.

To also understand from the above description, once closure member is driven downwards the position shown in Figure 11, then further The position shown in Figure 12 A is rotated to, the further reduction of closure member is will not relate to, the further compression of O-ring is also will not relate to, But make Part II be fixedly engaged to first by maximizing the overlapping area between Part II and Part I Beneath portions.In an illustrated embodiment, closure member rotates in the range of 40 to 50 degree between the position shown in Figure 11 and Figure 12 A Angle.This also means that once in the position shown in Figure 12 A, then closure member is firmly held on container, and is being sealed Closure member needs back to rotate the angle (40 to 50 degree) (as described further below before closing member can be removed from container ).Because the rotation is level (rather than as in the case of screw be inclined), therefore, there is no need to arrange Any ratchet or other features for overcoming (for example, be related to vertically moving for closure member) were needed before the rotation can occur.

Figure 13 to Figure 18 shows from the container of Fig. 1 the more detailed sequence of steps of the closure member for removing Fig. 2, and illustrates Closure member and container are in the position of the cross section of the relative position in each stage, especially O-ring packing.This is retouched with more than The loading sequence stated is substantially opposite.

In order to from the locked position release closure member shown in Figure 12 A and Figure 12 B, make closure member relative to container 10 around axis A rotates along direction (being in the embodiment shown counterclockwise) is unclamped.Initially, closure member is made to rotate to the position shown in Figure 13, directly To end face 24E of the end angled up of Part II 24A, (as mentioned above, it extends beyond Part II 24A Upper surface 24B) contact Part I 11A end surface 11D till.Subsequently, when further rotating from the position, incline End surface 24E crosses bevelled end surfaces 11D, as shown in figure 14, under Part III 25A engagement Part I 11A Face, as shown in figure 15, to prevent the vertically moving of closure member.This in closure member moves up period, and O-ring 23 passes through Sealingly engage sealing surfaces 13 and move to the position that O-ring is located on importing surface 12, as shown in fig. 15b.Will be appreciated by, Position shown in Figure 15 A and Figure 15 B is corresponding to the position shown in Figure 10 A and Figure 10 B.

Position shown in Figure 15 A and Figure 15 B is exhaust position.Excess pressure in container can pass through O-ring packing Gas between 23 and importing surface 12, specifically by the effusion for importing the exhaust groove 14 (as shown in Figure 1A) in surface It is released.However, closure member is securely held in container by the engagement below Part III 25A and Part I 11A On, as shown in fig. 15.As shown in fig. 15b, Part I 11A is clipped between Part II 24A and Part III 25A.

When the position shown in closure member from Figure 15 A further rotates along release direction, Part III 25A is along first Slide below point 11A and Part II 24A slides along the upper surface 24B of Part I 11A, until prolonging for Part II Till extending over the bevelled end surfaces 11D of end arrival Part I 11A angled downwards of its lower surface 24C.Meanwhile, Part III 25A reach from below Part I 11A 11C depart from position (therefore, no longer resist closure member shifting upwards It is dynamic).This is the position shown in Figure 16 (it corresponds to the position shown in Fig. 9).

When the position shown in closure member from Figure 16 further rotates, the end portion angled up of Part II is raised The bevelled end surfaces 11D of Part I 11A, and the inclined side 25B of Part III 25A crosses inclining for Part I 11A Angled end face 11E, therefore, closure member is diagonally moved up as shown in figure 17.In the case of the accommodating soda of container, by This pressure produced in container will be helpful to this of closure member and move up.

When the position shown in closure member from Figure 17 further rotates, Part III 25A can by Part I 11A it Between interval move up, closure member can freely lift from container to be taken away, as shown in figure 18.

As described above, the inclined end portion of Part II 24A is respectively used to downwardly and upwardly drive envelope relative to container Closing member, and Part II is also used separately as retainer, to limit rotation clockwise and anticlockwise of the closure member relative to container Turn.

Figure 19 to Figure 21 shows similar with Fig. 4 to Fig. 6 container with regard to noncarbonated beverage products container and closure member The schematic diagram and cross-sectional view of reduced form.(it is in the example shown two except container has less Part I 11A Rather than four) and closure member have less Part II 24A (same, to be in the example shown two rather than four) it Outward, it is similar to the arrangement shown in Fig. 4 to Fig. 6.

Figure 19 A and 19B show preloading phase, wherein, Part II (or at least a portion of Part II) is shelved Over the first portion and O-ring 23 separates with container.Equally, it should be noted that those figures show the signal of part Property is represented, therefore need not have man-to-man relation with the part shown in above-mentioned accompanying drawing.

Figure 20 A and 20B show loading position, wherein, O-ring 23 is shelved on the importing surface 12 of container and second Grid alignment between part 24A and Part I 11A.

Figure 21 A and 21B show sealing station, wherein, Part II 24A has further been moved downwards and at first 11A lower sections, and O-ring packing is divided to move down to sealingly engage the sealing surfaces 13 of container.

Because container is used for noncarbonated beverage products, so compared with the embodiment for soda, because closure member needs The upward pressure that can be born is greatly reduced, the overlapping area being thus between the Part I of fixed position and Part II Can greatly reduce.Nonetheless, it would be desirable to make the overlap maximization between Part I and Part II, i.e. by making Part I has in circumferential direction length substantially identical to each other with Part II, therefore can still make full use of possibility Lap (indentation damage to guarantee the firm attachment of closure member and avoid by Part II to Part I) while, The total circumferential lengths for making Part I are minimized (and then minimizing the impact of its lip to user).

Figure 22 illustrates the cross section of another embodiment of closure member.Except Part II downwardly and upwardly into The end of angle and its end surface 24D and 24E it is longer and with slightly shallow angle (for example with horizontal line into 30 to 40 degree In the range of) extend outside, the closure member is similar with closure member described above.This contributes to reducing in fastening and unclamping on direction Moment of torsion needed for rotary seal closing member, stage being particularly driven downwards in container in O-ring and when O-ring is driven upwards When moving to extract out from container.The relation at the movement of the horizontal component of Part II and its interval between Part I is protected Hold with embodiments described above.

Figure 23 shows the amplifier section of the cross section shown in Figure 22, with illustrate closure member manufacture method (and more than The manufacture method of the closure member of the embodiment of description).

When the closure member of the injection mo(u)lding of form known is formed by the material (such as polypropylene or polyethylene) of relative flexibility When, the screw thread on the inner side of the skirt portion of closure member is generally curved or " collision " forms the mould of these parts.However, making In the case of harder plastic material, this may be no longer possible, conversely, mould is likely to that there is " collapsible core " to be formed This screw thread.Generally, collapsible core can have 4,6 or 8 internal sliding members, and the internal sliding member moves radially inwardly to take out Region above empty internal whorl.However, because these can prevent sliding part from moving inward, therefore the use of this sliding part (especially at the position of skirt portion) formation further feature is then prevented from below the top section of closure member.

In order to overcome this problem, a kind of manufacture method of closure member, the closure member are another aspect provides With top section 20 and skirt portion 21, the top section has：(hole portion part extends to when in use container to hole portion part 22 In opening)；Recess 23B, for the sealing of receiving such as O-ring 23 in the radially outward-oriented surface of hole portion part 22 Component, skirt portion 21 has the holding member 24 protruded inwardly from around its inner surface, and holding member is in multiple circumferentially spaceds Part 24A form.This closure member can be formed by injection molding process, and the injection molding process includes following step Suddenly：

Injection molding tool is provided, injection molding tool has die cavity and processing core, and die cavity is used to form top section 20 With skirt portion 21 outwardly facing feature, processing core includes internal part and external component, and internal part is used at least shape The recess 23B of pore-forming part 22, external component is used at least form the holding member 24A of skirt portion, internal portion Part is arranged so that once formed closure member, then can substantially axially extract internal part out from die cavity,

External component includes collapsible core so that once internal part is extracted out, then the part of collapsible core can radially to Interior movement, in the space occupied by internal part before moving at least in part, so that collapsible core and the holding part 24A departs from so that subsequently can substantially axially extract collapsible core out from closure member.

Therefore, using the core rod with interior cylindrical part and external cylindrical slide cores group, interior cylindrical part For forming the external component of hole portion part 22, such as O-ring will be seated recess 23B therein, external cylindrical slide cores group For forming the internal feature of skirt portion 21, i.e. Part II or holding member 24A.

Once having formed closure member, then core rod can be removed by following steps order：

First, as by shown in arrow A1, from closure member inner cylinder is axially extracted out.Which leaves with width C 1 The space of the radially inner external cylinder of (such as 2.4mm), external cylinder can be with " contraction " to the space.

Second, as by shown in arrow A2, external cylindrical core radially-inwardly " is shunk " to being risen by the inner cylinder of core rod In the space for going out.

Finally, the inside departed from holding member 24A can be shrunk to as axially extracted out by shown in arrow A3 Cylindrical core.

The closure member illustrated in Figure 22 and 23 also has multiple bullets for projecting radially outwardly of the lower limb of neighbouring recess 23B Property finger piece 23C, for O-ring is axially retained in recess (therefore, when hole portion part is extracted out from container, O-ring It is maintained on hole portion part 22).Finger piece 23C is bent radially inward, with during the internal part part extraction internally for allowing core rod Depart from finger piece.

When it is divided in the radially part of hole portion part 22 with the radially innermost portion of holding part 24A of holding member 24 Between spaced radial it is less when, said method be especially suitable for.In the current situation, it is spaced in equivalent to this of thickness of chamber wall Closure member occupies the space when being arranged on container.

In the typical case of wide opening closure member, the spaced radial can be 4.0mm or less, preferably 3.9mm or more It is little.

Holding part 24A projects at least R mm from the inwall of skirt portion 21, and wherein R is at least 1.0mm, preferably at least 1.3mm。

Will be appreciated by, the extraction of internal part is provided and allows partially radially moving inward or being contracted to for external component Lack R and preferably R adds the space of 0.5mm or more (to allow closure member to stretch if being formed).

As indicated above, closure member can be molded of plastic material, and the rigidity of plastic material for example needs use to receive Contracting core is so that core to be separated with the holding part.Preferred material is plastic material, and it includes polyformaldehyde (as described above).

Will be appreciated by, the outer cylindrical component of core rod is relatively thin in radial directions (to correspond to size C2, for example 1.5mm).In some cases, it can be possible to be expected that by providing ribs on the outer surface of outer cylindrical component to strengthen this A little parts.Each of embodiment shown in Figure 22 in holding member 24A has gap 24A to house this rib, therefore The thickness of Outer cylindrical part can be locally increased R, such as 1.3mm by rib.Although including upper surface 24B and lower surface 24C Portion has this small―gap suture, but upper surface 24B and lower surface 24C still provide the work above with respect to embodiment description before With.

Figure 24 A and Figure 24 B show the side view of a part for container, show the Part I being arranged on container Alternative shapes, and show upper surface 11B and lower surface 11D and end surface 11D and 11E.

Part I shown in Figure 24 A includes horizontal upper and lower surface and prolongs between upper surface and lower surface The bevelled end surfaces 11D and 11E for stretching.Upper and lower surface and end surface are shown at multiple points and join, but In fact, these surfaces are slightly circular because of manufacturing process and tolerance.Upper and lower surface is provided before Embodiment described in effect, and bevelled end surfaces are also used as described above downward driving surface and to drive up Surface.

Except end surface 11D it is in slightly shallow angle and more slightly longer than the end surface shown in Figure 1B, such as corresponding to Outside the shallower angle of the end surface 24E of the closure member shown in Figure 22, the Part I shown in Figure 24 B is shaped like In the shape of the Part I shown in Figure 1B.The shape is more shorter than the shape shown in Figure 24 A and more round, therefore, to user's Lip has minor impact, and its surface provides the effect of description.

Figure 25 A and 25B show two of the closure member formed by metal (rather than plastic material) corresponding to Figure 22 The cross-sectional view of further embodiment.

Embodiment shown in Figure 25 A has shrinkage pool feature 22 (when viewed from above).The outer surface of the hole characteristic has For keeping the indenture 23B of O-ring (not shown).Pressure in container will act on below hole characteristic 22, to contribute to O Shape ring is pressed against on the sealing surfaces of container.

Closure member can be formed in pressing operation, in pressing operation, by suppressing reverse shape hole characteristic be formed 22.Subsequently, the side wall of hole characteristic 22 is rolled to form the indenture 23B for O-ring.

Embodiment shown in Figure 25 B is similar, except subsequently (from the position shown in Figure 25 A) is anti-for example by punching press To outside formation hole characteristic 22, therefore, the upper surface of closure member has more conventional convex (when viewed from above).Reversely into Shape sets up double folding 22A at the base portion of indenture, and double folding provides additional hoop strength to resist the inside of hole characteristic 22 Bending (it may weaken the sealing between O-ring and container).

In both embodiments, the skirt portion 21 of metal closure in its outer surface have rolling groove, with There is provided and formed on the inner surface of Part II projection 24A.For example it is rotated up providing flange (such as in common metal when closure member In closure member) when, Part III 25A is formed in the lower lip of closure member.

Part II 24A and Part III 25A has and the shape described in embodiment before and effect substantially phase Shape together and effect.The inner surface of the skirt portion of metal closure be therefore formed as having similar to by plastics (or other Moldable material) formed above-described embodiment inner surface shape.However, wall thickness (yardstick) is fairly small, for example, exist In the range of 0.18mm to 0.22mm (compared with the about 1.65mm of plastics closure).

The metal for being used can be similar to making in conventional metal closure part (such as turning on lid for other types of) Metal, such as tinplate (are coated with both surfaces the low carbon mild steel of the electrolytic deposition of tin).The material generally has The yield stress of the yardstick of about 0.14 to 0.18mm and about 580 to 620MPa.

Metal closure can be used for closing by plastic material (as described above) or other materials (such as metal appearance Device) formed container.

Figure 26 shows the cross-sectional view of another embodiment of the container formed by metal (rather than plastic material), the appearance Device can be used together with regard to the metal closure described by Figure 25 A and 25B (or with as described in embodiment before Plastics closure be used together).Canister is designed to corresponding with the container shown in Figure 1B.Metal is for example by from inside Punching press and formed so that the outer surface of container has a prominent Part I 11A, Part I have with embodiment before (cross section in Figure 26 is shown when watching from the inside of container for the shape and effect same shape of description and effect These features).

Therefore the outer surface of the part of canister is formed as having and is formed by plastics (or other moldable materials) Above-described embodiment appropriate section the similar shape of outer surface.However, wall thickness (yardstick) is fairly small, such as in 0.14mm (the container formed with about 2.0 to 2.5mm in the neck portion of plastic containers and by blow molding to 0.18mm Part in about 0.7 to 1.0mm compare).

The topmost portion of canister is formed as providing for receiving O-ring (described in as in prior embodiments) Incline and import surface 12 and the exhaust passage 14 in the importing surface.The upper part of container can have rolled edge as shown The exhaust passage of edge compacting or punching press with importing surface and on the inner surface of upper part.Therefore, part of canister Inner surface be formed as that there is interior table with the appropriate section of the above-described embodiment formed by plastics (or other moldable materials) Shape as noodles.However, wall thickness (yardstick) is same fairly small (as described above).

Canister can be by forming similar to the metal used in conventional steel container for drink.This material generally has The yield stress of the yardstick of about 0.20 to 0.25mm and about 350 to 420MPa.

Therefore, the weight and material cost of metal closure or container can be less than the corresponding envelope being molded of plastic material The weight and material cost of closing member or container.

In the embodiments described above, Part I, Part II and Part III are each around container and closure member Circumference it is equally angularly spaced.However, for example expecting to provide big interval between the part in one or more regions In the case of, these can be non-uniformly spaced more comfortably is drunk with providing.

The embodiment of diagram each has four Part I (and four Part II and four Part III), but As indicated, the pressure to be born is designed according to the diameter and closure member of closure member and container, it is possible to use less or more Big quantity.

The lower surface of Part I and the upper surface of Part II are preferably substantially put down in radial directions as described It is smooth.However, in certain embodiments, for example on bottleneck, these surfaces can in radial directions incline or bend, as long as this A little surfaces in vertical direction between interaction be enough to provide closure member fixation required on container in vertical direction .

In the embodiment shown, Part I preferably has the shape of simple and relative smooth, so that Part I Outward appearance to container and its impact to the lip of user are minimized, and second (and alternatively 3rd) part on closure member There can be more complicated shape, this is because Part II is not with the lip contact of user and Part II in certain journey The reason being hidden on degree on the inner surface of closure member.However, in the case where these factors are less focused on, Part I can With with more complicated shape.A kind of possibility is that the downwardly and upwardly angled end of Part II is alternatively arranged on the In a part.Further possibility is that Part I is arranged on the closure, and Part II is arranged on container.

Particularly with carbonating application, once relying on the pressure in container to help user in Part III second The engagement of beneath portions has discharged, in the case of lifting closure member, it is also possible to omit end angled up.

As mentioned above, at least for carbonating application, the circumferential lengths of the combination of Part I are preferably container About the 50% of excircle, and in fixed position, Part II is substantially whole circumferential with the lower surface of the Part I Length is contacted.Particularly with non-carbonated application, and when lid and container are all yielding compared with sturdy material example by more not allowing As metal make when, the circumferential lengths of the combination of Part I (and Part II) can be less, it is preferred that for container (or Closure member) excircle at least 15 to 25%, to contribute to guaranteeing that closure member is firmly held on container that (its reason is envelope Closing member still may because of temperature change or the external pressure of reduction and withstanding pressure is poor).Additionally, in Part I or second / gap become too big in the case of, there is closure member may be twisted into the risk of non-circular shape, and this may infringement Sealing between container and closure member.

Similarly, Part II can contact the whole circumferential lengths of the lower surface less than the Part I.However, connecing Tactile length should Part II will not recessed Part I or otherwise damage Part I in the case of be enough to make table Face can slide over each other and be enough to bear closure member by the pressure for undergoing.

Embodiment from the above description will also be appreciated that, circumferentially-spaced between Part I must be enough to allow second Part passes through therebetween.Although Part II can have one or more inclined end portions and these can Part I it Between pass through at a certain angle, but the horizontal cell of Part II must be shorter than between Part I circumferentially-spaced (no matter Two parts are vertical or obliquely by the gap between Part I).

In order to avoid query, as used herein verb " including " has its normal dictionary meanings, i.e. represent non-row He includes property.Therefore, the use of word " including " (or its any derivative) is not excluded for including the possibility of other features.

All features disclosed in this specification (including claims and accompanying drawing) (can also be removed with any combinations Outside feature mutually exclusive combination) combine.

Unless expressly stated otherwise, each feature otherwise disclosed in this specification (including claims and accompanying drawing) Can be replaced by the alternative characteristics for identical, equivalent or similar purpose.Therefore, unless expressly stated otherwise, otherwise institute is public Each feature opened only is to provide the example of equivalent or similar effect general series of features.

The invention is not restricted to the details of described embodiment.The present invention is expanded to including in above-mentioned feature The container and/or closure member of the combination of individual or multiple or any other novel concept, feature or feature disclosed herein.

Claims (55)

1. a kind of container and its closure member, the container have the opening that limits axis and around the container appearance towards The first component of outer protrusion, the Part I of the first component including multiple circumferentially spaceds, each Part I has and carries The element of elongated upper and lower surface, the upper surface of the element of the Part I and the lower surface are in circumference Approximate horizontal on direction, the closure member has top section and skirt portion, and the skirt portion is included around the skirt section portion The second component that the inner surface for dividing is protruded inwardly from, the second component includes the Part II of multiple circumferentially spaceds, and each second Part has the element with elongated upper and lower surface, the upper surface of the element of the Part II and described Lower surface is approximate horizontal in circumferential direction, and the element of the Part II is described with enabling the Part II to pass through The length at the interval between Part I and Part I lower section can be positioned at, the closure member is fixed into institute State container.

2. container according to claim 2 and closure member, wherein, in the Part I each or it is described second Each in point has the end and/or another end has downward-sloping end at it of being inclined upwardly in one end thereof.

3. container according to claim 2 and closure member, wherein, the Part II be inclined upwardly end and/or to Lower inclined end portion respectively extends beyond the described elongated upper and lower surface of the Part II.

4. the container and closure member according to Claims 2 or 3, wherein, when the closure member revolves in the first direction around axis A When turning, the downward-sloping end is used to drive the Part II downwards relative to the Part I.

5. the container and closure member according to claim 2,3 or 4, wherein, when the closure member around axis A in a second direction It is described to be inclined upwardly end for driving up the Part II relative to the Part I during rotation.

6. according to container in any one of the preceding claims wherein and closure member, wherein, the top section tool of the closure member Hole portion part in having for extending to vessel port and it is used to be provided with the interior sealing surface of the container on the hole portion part The containment member of sealing.

7. the container and closure member according to claim 3,4 and 6, wherein, the downward-sloping end is used for described the Two parts are driven into downwards the containment member sealing from the containment member in the position that unsealed position contacts the container The position of the interior sealing surface of the ground engagement container.

8. the container and closure member according to claim 6 or 7, wherein, the containment member includes the O being arranged in gland Shape ring.

9. according to container in any one of the preceding claims wherein and closure member, wherein, the closure member can be solid first Determine sealing station and can carry out being moved between the second fixation exhaust position of the exhaust of the container.

10. a kind of container and its closure member, the container has the opening and the outer surface around the container for limiting axis First component outwardly, the first component includes the Part I of multiple circumferentially spaceds, and each Part I includes tool There is an element of upper and lower surface, the upper surface is approximate horizontal in circumferential direction and the lower surface is in circumferential direction Upper approximate horizontal, the closure member has top section and skirt portion, and the top section has to be opened for extending to container Hole portion part in mouthful and it is used to provide the containment member of sealing with the interior sealing surface of the container on the hole portion part, it is described Skirt portion includes that around the inner surface of the skirt portion inwardly projecting second component the second component includes multiple circumferences The Part II for separating, the closure member can be fixed to institute by the interaction between the Part I and Part II State container, the closure member can be rotated in a first direction and downwards in first position, the closure member relative to the container The second place after movement is further rotated and the envelope relative to the container with the closure member along the first direction Closing member move further downward relative to the container after the 3rd position between move, in the first position, described At least a portion of two parts engages the upper surface of the Part I, and in the second place, the containment member is non-close Envelope position contacts the container and the grid alignment between the element of the Part II and the Part I, described the Three positions, the containment member moves down into the unit for sealingly engaging the sealing surfaces and the Part II Part is positioned at the Part I lower section and contacts with the lower surface of the Part I.

11. containers according to claim 10 and closure member, wherein, the sealing surfaces are roughly parallel to the axis, And thereon there is the container inclination for leading to the sealing surfaces to import surface for end.

12. containers according to claim 11 and closure member, wherein, in the second place, the containment member contact The importing surface.

13. containers and closure member according to claim 10,11 or 12, wherein, when the closure member is from the second Put when being moved down into the 3rd position and being sealingly engaged with the sealing surfaces with the mobile closure member, the containment member quilt It is compressed between the container and the hole portion part.

14. containers and closure member according to any one of claim 10 to 13, wherein, the closure member is arranged to pass through Around the axis rotate in a second direction with by the closure member from the 3rd position move to the second place and with After move to the first position and remove from the container.

15. according to container in any one of the preceding claims wherein and closure member, wherein, the skirt portion bag of the closure member Include another inwardly projecting component, another inwardly projecting component includes the Part III of multiple circumferentially spaceds, described the Each in three parts has the low upper surface of the height of the upper surface than the Part II, and the Part III is arranged to The lower surface of the Part I is engaged when the closure member is in exhaust position.

16. containers according to claim 10 and 15, wherein, the Part III is arranged to when the closure member is in institute The lower surface of the Part I is engaged when stating the second place.

17. according to container in any one of the preceding claims wherein and closure member, wherein, each in the Part II With end angled downwards, the end angled downwards be arranged to when the closure member from the second place along The first direction engages the first end face of the Part I when rotating, vice versa, and with the Part I First end face interacts to drive the closure member downwards.

18. containers according to claim 17 and closure member, wherein, each in the Part II have upwards into The end of angle, the end angled up is arranged to when the closure member is from the second place along second direction The second end face of the Part I is engaged during rotation (contrary with first direction), vice versa, and with described first The second end face divided interacts to drive up the closure member.

19. according to container in any one of the preceding claims wherein and closure member, wherein, the element arrangement of the Part II Into angularly through the interval the Part I.

20. according to container in any one of the preceding claims wherein and closure member, wherein, the Part II it is approximate horizontal Upper surface circumferential lengths be the Part I approximate horizontal lower surface circumferential lengths at least 50%, preferably At least 75%.

21. containers according to claim 20 and closure member, wherein, the approximate horizontal upper surface of the Part II Circumferential lengths are roughly the same with the circumferential lengths of the approximate horizontal lower surface of the Part I.

22. according to container in any one of the preceding claims wherein and closure member, wherein, each Part I have with it is described The substantially similar circumferential lengths of the circumferential lengths of the element of Part II.

23. containers according to claim 22 and closure member, wherein, when the closure member is fixed to the container, institute State the substantially whole circumferential lengths of the lower surface of the element contact Part I of Part II.

24. containers according to claim 23 and closure member, wherein, the circumferential lengths of the combination of the Part I are institutes State the substantially half that container arranges thereon the excircle at the position of the Part I.

25. according to container in any one of the preceding claims wherein and closure member, wherein, the first component and the container Upper end separate, the distance being preferably spaced apart in the range of 6 to 15mm, and most preferably separating in the range of 9 to 12mm Distance.

26. according to closure member in any one of the preceding claims wherein and container, including wide opening container as defined herein.

27. containers and closure member according to any one of aforementioned claim 20, wherein, the container passes through injection mo(u)lding Technique, is subsequently formed by the blow moulding process to the part below the first component.

28. containers according to claim 27 and closure member, wherein, appearance of the container below the first component There is groove, the first component and/or the groove are provided with holding meanss in face, the holding meanss the container from The container can be kept when injection molding apparatus are transferred to apparatus for blow moulding and/or during the blow moulding process.

29. a kind of containers, for being used together to provide according to container in any one of the preceding claims wherein with closure member And closure member.

30. containers according to claim 29, the container is formed by metal.

31. a kind of closure members, for being used together to provide the container according to any one of claim 1 to 28 with container And closure member.

32. closure members according to claim 31, the closure member is formed by metal.

A kind of 33. containers and/or closure member, the container and/or the closure member substantially such as before with reference to accompanying drawing in one Or it is multiple described and/or as shown in one or more in accompanying drawing.

34. according to container in any one of the preceding claims wherein and the purposes of closure member, for accommodating soda.

The container that a kind of 35. manufactures are used when the container and closure member according to any one of claim 1 to 28 is provided Method, methods described include injection molding process, be followed by blow moulding process.

36. methods according to claim 35, wherein, the container has in the outer surface below the first component Groove, the first component and/or the groove are used as holding meanss, and the holding meanss set in the container from injection mo(u)lding It is standby that the container can be kept when being transferred to apparatus for blow moulding and/or during the blow moulding process.

37. methods according to claim 35 or 36, wherein, the closure member is formed by injection molding process.

38. methods according to claim 37, wherein, the closure member is formed by polyformaldehyde.

A kind of 39. methods of manufacture container closure member, the container has the opening for limiting axis, and the closure member has Top section and skirt portion, the top section has for extending to the hole portion part in vessel port, in the hole portion part Radially outward-oriented surface in for receiving the recess of containment member, and the skirt portion has and surrounds the skirt section portion The holding member that the inner surface for dividing is protruded inwardly from, the holding member includes the part of multiple circumferentially spaceds, and the closure member leads to Cross injection molding process to be formed, the injection molding process is comprised the following steps：

Injection molding tool is provided, the injection molding tool has die cavity and tool core, and the die cavity is used to form the envelope The top section of closing member and skirt portion outwardly facing feature, the tool core includes at least forming the hole portion part Recess internal part and the external component at least forming the holding member of the skirt portion,

The internal part is arranged so that once the closure member has been formed, then the internal part can be from the closing Part is substantially axially extracted out,

The external component includes collapsible core so that once the internal part has been pumped out, then the portion of the collapsible core Point can radially inwardly move, in the space occupied by the internal part before moving at least in part, so that described Collapsible core departs from the holding part so that the collapsible core subsequently can substantially axially be taken out from the closure member Go out.

40. methods according to claim 39, wherein, the recess forms the gland for receiving O-ring containment member.

41. methods according to claim 39 or 40, wherein, the neighbouring recess is formed for by the containment member axle To the multiple resilient fingers for projecting radially outwardly being maintained in the recess, the finger piece is bent radially inward to work as Stating allows the internal part to depart from therewith when internal part is axially extracted out.

42. methods according to claim 39,40 or 41, wherein, the hole portion part radially part and the skirt Spaced radial between the radially innermost portion of the holding member of portion part is 4.0mm or less, it is therefore preferable to 3.9mm or more It is little.

43. methods according to claim 42, wherein, the holding part is projected at least from the inwall of the skirt portion R mm, wherein, R is at least 1.0mm, it is therefore preferable at least 1.3mm.

44. methods according to claim 43, wherein, the extraction of the internal part is provided and allows the external component It is described partially radially move inward at least R, preferably R plus at least space of 0.5mm, once to allow the closure member shape Into then shrinking.

45. methods according to any one of claim 39 to 44, wherein, the closure member is molded of plastic material, institute State as a example by the rigidity of plastic material if desired for using collapsible core so that the core departs from the holding part.

46. methods according to claim 45, wherein, the plastic material includes polyformaldehyde.

A kind of 47. container closure members, the container has and limits the opening of axis, the closure member have top section and Skirt portion, the top section have for extend to hole portion part in vessel port, in the hole portion part radially outward Towards surface in for receiving the recess of containment member, and the skirt portion has the inner surface around the skirt portion Inwardly projecting holding member, the holding member includes the part of multiple circumferentially spaceds, wherein, the closure member passes through basis Method manufacture any one of claim 39 to 46.

48. closure members according to claim 47, wherein, the recess forms the pressure for receiving O-ring containment member Lid.

49. closure members according to claim 48, wherein, the neighbouring recess is provided for the containment member axial direction The multiple resilient fingers for projecting radially outwardly being maintained in the recess.

50. closure members according to claim 47,48 or 49, wherein, the hole portion part radially part with it is described Spaced radial between the radially innermost portion of the holding member of skirt portion is 4.0mm or less, it is therefore preferable to 3.9mm or more It is little.

51. closure members according to claim 50, wherein, the holding part is projected to from the inwall of the skirt portion Few R mm, wherein, R is at least 1.0mm, it is therefore preferable at least 1.3mm.

52. closure members according to any one of claim 47 to 51, wherein, the top section and skirt portion are by wrapping The plastic material for including polyformaldehyde is integrally formed.

53. is a kind of generally as before with reference to the Figure 22 in accompanying drawing and the method described in 23.

A kind of 54. containers and its closure member, the container has the opening and the outer surface around the container for limiting axis First component outwardly, the first component includes the Part I of multiple circumferentially spaceds, and each Part I has length The upper and lower surface of shape, the upper surface of the Part I and the lower surface it is approximate horizontal in circumferential direction, The closure member has top section and skirt portion, and the skirt portion includes inwardly being dashed forward around the inner surface of the skirt portion The second component for going out, the second component includes the Part II of multiple circumferentially spaceds, and each Part II has with elongated Upper and lower surface horizontal component, the upper and lower surface of the horizontal component at least substantially water in circumferential direction Flat, the horizontal component of the Part II has and enables the Part II through the interval the Part I Length and can be located at the Part I lower section, the closure member is fixed into the container, the closure member can The container is fixed to by the interaction between the Part I and Part II so that when closure member rotation When, the horizontal component of the Part II is driven downwards by the interval between the Part I and described second The partial upper surface below the Part I contacts with the lower surface of the Part I, and the closure member phase For subsequently moving down for the container makes the containment member be sealingly engaged with the sealing surfaces.

A kind of 55. containers and its closure member, the container has the opening and the outer surface around the container for limiting axis First component outwardly, the first component includes the Part I of multiple circumferentially spaceds, and each Part I has upper Surface and lower surface, the upper surface is approximate horizontal in circumferential direction and the lower surface substantially water in circumferential direction Flat, the closure member has top section and skirt portion, and the top section has for extending to the hole in vessel port Part and it is used to provide the containment member of sealing, the skirt portion with the interior sealing surface of the container on the hole portion part Including the inwardly projecting second component of the inner surface around the skirt portion, the second component includes the of multiple circumferentially spaceds Two parts, each Part II has the horizontal component with elongated upper and lower surface, the upper table of the horizontal component Face and lower surface are at least approximate horizontal in circumferential direction, the closure member can by the Part I and Part II it Between interaction be fixed to the container, the closure member can be in first position, the closure member relative to the container The second place after being rotated in a first direction and moving down is with the closure member relative to the container along the first party Move between the 3rd position to after further rotating and the closure member is moved further downward relative to the container, The first position, at least a portion of the Part II engages the upper surface of the Part I, in the second place, The containment member contacts the horizontal component and the Part I of the container and the Part II in unsealed position Between grid alignment, in the 3rd position, the containment member is moved down into and sealingly engages the sealing surfaces And the Part II is located at Part I lower section and contacts with the lower surface of the Part I.