CN101784453A - Closure system and its method of forming - Google Patents

Abstract

A closure system comprising a neck (12), a cap (14) engageable with the neck (12) and a locking member (40) attached to the neck (12). The locking member (40) is orientated in a first position with respect to the neck (12) to facilitate moulding of the neck (12) and is orientated in a second position with respect to the neck (12) to prevent removal of at least a portion of the cap (14) from the neck (12). The locking member (40) is moved from said first position to said second position upon application of the cap (14) to the neck (12). Also disclosed is a method of forming the neck (12).

Description

Bounded system and forming method thereof

The present invention relates to a kind of bounded system, comprise a neck and a cap that is assemblied on the neck.Bounded system comprises tamper-evident (tamper evident) device, and this tamper evident device comprises the locking piece that is attached on the neck, like this, when being assemblied in cap on the neck, prevents from before destroying tamper evident device cap to be removed from neck.

Know that for a long time carton box can advantageously add the bleeder or the mouth of plastics, is commonly referred to " capping accessory ".This device generally comprises a neck, and a lot of at first by a disc sealing integrally moulded in neck.Disc is linked on the neck by the tear line of an easy fracture, and has the grip part of a draw ring or pulling-on piece form.The user catches the portion of holding with a firm grip and along the easy fracture tear line molded disc is torn from neck when beginning to open carton box.This device also can add one usually around the exterior cap of neck, so that after carton is opened it is closed again.

This device provides rational tamper-evident and sealing property, to make it aseptic or to increase the service life.A shortcoming of this device is that well-known, because the disc on the unexpected release opening, content has the danger of spilling.

The another kind of variation of the capping fitting system on the disc is disc not to be set in neck structure, but the mutual action between cap and the neck is designed to not only initial sealing is provided but also tamper-evident features is provided.Though this conversion is solving the problem that content often spills at opening, the compatible variation of (aseptic) cleaning systems in feasible and long standard life-span.This is because for satisfied initial sealing is provided, cap surface need closely cooperate with neck surface, this just feasible being difficult to the capping accessory surface enforcement flushing of aseptic clean solution to assembling.If the capping accessory can not be handled like this, it just can not be used to hold the article that expect to have long-term shelf life so, and therefore the purposes of capping accessory also is restricted.

In addition, according to the attribute of tamper-evident, if plan the tamper-evident characteristic is stayed on cap or the neck (with simply abandon opposite), the risk under the tamper-evident characteristic is disassembled in daily use is just arranged.This is a main problem, the user does not notice because if the tamper-evident characteristic is fallen in the container that has been assigned with content, that tamper-evident characteristic just might pollute the material that is assigned with, perhaps more seriously, be to be used for by human consumption as fruit product as common situation, that user can swallow down the tamper-evident characteristic.Because it is complicated day by day that this danger, the tamper-evident in this capping accessory become, make also expensive day by day.

Opposite with this trend, the invention provides the bounded system of a kind of complexity reduction and low cost of manufacture, wherein, locking piece is attached on the neck, locking piece is positioned in the primary importance with respect to neck, so that mold neck, and be positioned at the second place, so that stop at least a portion of cap to be removed from neck with respect to neck.In addition, when being assembled to cap on the neck, locking piece moves on to the described second place from described primary importance.

Though recognize that using on the cap radially be the method that well-known prevention cap rises below projecting inward lock pearl is engaged on the adjacent surface that radially outward protrudes on the neck, this design need produce a undercut to form adjacent surface on neck.This manufactures not only complexity but also costliness.Particularly, if molded this neck needs mould to have at least at two parts of transversely opening.

Equally, though known can providing comprises fold characteristics tamper evident device partly, described device is arranged on the cap usually, and forms the upset band forms that makes progress, inwardly folds from cap skirt section lower edge.On the contrary, in the bounded system of the present invention, some place of locking piece on neck wall is attached to neck, and, in use, leave dispensing orifice and upset downwards.This layout also can limit the cap downside and rise and the possibility of collision tamper-evident characteristic.

According to a first aspect of the invention, provide a kind of bounded system, this system comprises cap, neck and tamper evident device, and this system allows cap is applied on the neck, and thus, tamper evident device prevents that cap from removing from neck, and tamper evident device is kept perfectly simultaneously.

Advantageously, neck is provided with flexible locking piece, and locking piece is suitable for engaging with tamper evident device on the cap, stops like this that the endless belt is removed after cap being assembled on the neck.

Advantageously, locking part is molded as flexible form, thereby it can be removed release with standard and the most traditional single shaft mould motion, from making this system than legacy system very big economical production benefit be arranged.

Advantageously, locking piece is adapted at molded folding under the effect of cap or the suitable downward force that other external force applied afterwards downwards.

Advantageously, when being assemblied in cap on the neck, the latch wall parts are hinged with respect to the closure member endless belt, and this provides downward and inside folding movement, this motion form with closure member on suitable the engaging of endless belt.

Advantageously, flexible locking piece can be configured as a plurality of flexible salients.A plurality of flexible salients can be circumferentially spaced apart, and each salient is spaced apart by salient adjacent on pair of notches and the both sides.

Advantageously, these salients form radial form, in case downward, inside upset will form the wall of one section shortening of cylindrical neck, to strengthen the maximum contact of annular contact zones set on structural strength and maintenance and the closure member.

Advantageously, locking piece from neck along and the vertical axle of bounded system becomes 0 ° to 15 ° angle and vertical outside direction extension, thereby provide suitable accessory adapting to the variation of two part dimensions, and strengthen the safety of tamper evident device and opening the ability that the back keeps the tear-strap characteristic.

Advantageously, locking piece can comprise a plurality of circumferential isolated locking members, and locking member has contiguous first circumferential size of band and second circumferential size of proximate neck of going in ring, and first circumferential size is bigger than second circumferential size.Preferably, locking piece is opened by a plurality of gap lengths, and the slit is positioned on the circumference relative edge of locking piece in groups.

Advantageously, locking piece comprises one or more folds or folding line.Under another kind of structure, locking piece comprises a plurality of locking pieces regional isolated, that open along the circle spacing that reduced by reduction or thickness.

Advantageously, cap is provided with adapting device, be used for be arranged on neck on the corresponding matching device repeatedly, engage releasedly.Preferably, a pair of corresponding matching device can comprise a pair of spiral thread structure.In this case, the structure optimization on the neck is the external screw thread structure.

Advantageously, use a pair of helicitic texture, thereby allow the power of utilizing one axially to apply,, thereby cap is applied on the neck so that the screw thread on the cap slips over the screw thread on the neck and be meshing with each other.Preferably, the screw thread on the cap is directed like this with respect to the screw thread on the neck: when axially being applied to cap on the neck, each helicitic texture is placed with the screw-threaded engagement of the best.

Advantageously, cap is provided with a ring taps, is used for putting into the hole of neck.

Advantageously, bounded system comprises the capping accessory that is attached on carton or other container.

Alternatively, the bounded system that comprises locking piece can be integrally moulded with container, and described neck has formed the neck of container.

Advantageously, be provided with the annulus (diameter) of the inside formation that links to each other with the neck inwall, form an opening, this opening can with side-prominent sealed circular ring mutual action under the closure member, to form the tight seal of gas and liquid.

Advantageously, this inside annulus that inwardly forms makes seal point remain on 0.1mm between the 5mm apart from the distance of sidewall, like this, in order to carry out health and aseptic packing, can allow clean solution and light to enter with the cleaning accessible area.

Advantageously, inwardly the inside annulus that forms can provide intensity for structure, further promotes the main lighter design weight of being brought by the flexible locking piece of novelty.

Advantageously, when becoming, interior circular annular should form downward a little angle, after allocated product, to be convenient to apply the backflow of closure member sealing and product with horizontal surface.

According to a second aspect of the invention, provide a kind of bounded system, the tamper evident device that it comprises cap, neck and is molded as flexible structure, this structure allows cap is applied on the neck, thus, tamper evident device prevents cap to remove simultaneously from neck, and tamper evident device remains intact.

Advantageously, locking piece is connected on the neck at flexible-disc joint point place, and contacts with cap in its outside, and thus, locking piece is cooperated to form described tamper evident device with neck and cap.

Advantageously, tamper evident device comprises: be suitable for passing the endless belt of neck when being applied to cap on the neck, and the locking piece that combines with the endless belt, this locking piece is cooperated with neck and the endless belt is removed from neck preventing.

Advantageously, this bounded system is equipped with the bridgeware that a series of easy fractures split between endless belt and threaded portion, to form tamper evident device.

Advantageously, this bounded system is provided with crack formula bridgeware after being assembled to cap on the neck.

Advantageously, locking piece forms hinged, though and also nonessential, it is radial that blocking device preferably is, thereby make neck can be completely locked on the part with its closed contact, can more effectively support bounded system after assembling, to form the crack of bridgeware form like this.

Advantageously, flexible locking piece is linked on the neck by weakening disc or weakened points, forms hingedly, and this hinged permission locking piece is turned to downwards, outside a little position also, thereby for cooperating the surface that provides necessary with annular ring on the closure member, and form the actv. tamper evident device.

Advantageously, have a latch wall on the neck, the annular ring on the closure member is suitable for engaging with latch wall, thereby after using cap on the neck, prevents that annular ring is removed.

Advantageously, the behavior that cap is assembled on the neck will cause the inside folded coil band of locking piece.

Advantageously, when being assembled to cap on the neck, locking piece is hinged with respect to the endless belt, and the endless belt inwardly folds and engages with the latch wall of bounded system.

Advantageously, the endless belt links to each other with cap at easy fracture place attaching parts, and when attempting cap removed from covering, this easy fracture splits attaching parts with fragmentation.

Advantageously, locking piece will form its radius and satisfy after locking piece is put upside down at last and can cooperate with neck.

Advantageously, the locking attaching parts forms a plurality of outshots that are connected in the easy fracture of neck.

Advantageously, described a plurality of flexible locking protrusions pass through a pair of crack, opening or fold and separate with circumferentially spaced apart between the adjacent protrusion of each protrusion and both sides.

Advantageously, flexible locking piece from the neck extension to the neck on a bit, when described flexible locking piece was folding, this point can be cooperated with the endless belt of closure member.

Advantageously, flexible locking piece from neck along and the vertical axle of bounded system becomes 0 ° to 15 ° angle and vertical outward-dipping direction extension, thereby provide suitable cooperation to adapt to the variation of two part dimensions, also can strengthen the safety of tamper evident device and open the ability that the back keeps the tear-open strip characteristic.

Advantageously, flexible locking piece is separated by a plurality of cracks.

Advantageously, flexible locking piece comprises one or more folds or folding line.

Advantageously, the cap tool has been provided with adapting device, be used for neck on cooresponding adapting device repeatedly, releasedly the engagement.

Advantageously, this comprises 1 to 10 spiral thread structure to the corresponding matching device.

Advantageously, the helicitic texture that is arranged on the neck is the external screw thread structure.

Advantageously, the helicitic texture that is arranged on the neck is a female thread configurations.

Advantageously, helicitic texture is arranged to allow cap is assembled on the neck by rotation and the power that axially applies, and thus, the screw thread that the screw thread on the cap slips on the neck produces engagement.

Advantageously, cap is provided with a ring plug and is used for packing in the hole of neck.

Advantageously, though also nonessential, the easy fracture bridgeware that connects annular loop section and threaded portion is preferably formed by crackle or alternate manner after cap being assembled on the neck.

Preferably, bounded system comprises a capping accessory that is arranged on carton or other container.

According to another aspect of the present invention, a kind of closure member that combines with neck is provided, when combination, this closure member provides apart from closure member and neck is worked in coordination and provide leak free point 0.5mm to the inlet between the 5mm, allows more effective sterilization like this.

According to another aspect of the present invention, a kind of neck form is provided, have inside raised face apart from neck inwall 0.5mm to 5mm, that form seal point.

Advantageously, though and nonessential, inwardly preferably that Open Side Down is angled towards neck for projecting surface, is beneficial to the backflow of product and by mechanical dominance enhanced leaktightness and enforcement.

According to another aspect of the present invention, a kind of method with tamper-evident mode closed container is provided, be included in the step of mold locks on the container neck, form thus cap is applied in structure on the neck, this structure prevents that cap from removing from neck, maintains attached even in the complete of tamper evident device on the closure member simultaneously.

Advantageously, the crack by the bridgeware form after closure member being assembled on the neck of the tamper-evident mechanism on the closure member forms, and can form the bridgeware and the tamper evident device of reduction like this.

The present invention will be described by way of example below with reference to the following drawings, wherein

Fig. 1 is the block diagram of bounded system of the present invention;

Fig. 2 is the front elevation of bounded system among Fig. 1;

Fig. 3 is the cross sectional drawing of neck in the bounded system;

Fig. 4 is the detailed cross sectional view of neck of the present invention, flexible locking piece shown in it;

Fig. 5 is the front elevation of neck in the bounded system;

Fig. 6 is the cross sectional drawing of cap in the bounded system;

Fig. 7 (a) and (b) and (c) be the cross sectional drawing of bounded system, shown in it when cap is assembled on the neck motion of flexible locking piece and final position;

Fig. 8 is the cross sectional drawing that cap assembles the rear enclosed system fully;

Fig. 9 is removed and the cross sectional drawing of tamper-evident band bounded system when remaining on the neck at cap.

As illustrated in fig. 1 and 2, a form that bounded system can be a capping accessory 10 among the present invention.Capping accessory 10 comprises a neck 12 and a cap portion 14.

Neck 12 is shown in more detail in accompanying drawing 3 and 5, and includes bore edges 16, and edge 16 has level and smooth and smooth substantially upper and lower surperficial 18 and 20 respectively.

Cylindrical wall 22 is protruding upward from upper edge surface 18 round the hole, forms level and smooth low neck.Away from the end that bore edges 16 is arranged, cylindrical wall 22 with one upwards and radially combine to projecting inward wall 24.Upwards and radially combine with second cylindrical wall 26 again to projecting inward wall 24, the internal diameter of second cylindrical wall 26 and external diameter are all little than first cylindrical wall 22.Yet the wall ratio of first cylindrical wall 22 is upwards and radially to projecting inward wall 24, second cylindrical wall 26 and have the wall thickness of bore edges 16 all little.

Away from upwards and radially to an end of projecting inward wall 24, second cylindrical wall 26 engages to the ring limit 28 of interior orientation downwards and radially with one, encircle limit 28 in the termination of periphery 30 places to form a dispensing orifice 32.

In the formation second cylindrical wall 26 of neck be provided with on the outer surface adapting device 34 be used for cap portion 14 on corresponding matching device engagement.In the example shown, adapting device 34 is equispaced, many screw-shaped external screw thread structures, comprises three start screw or helical pitch 36.Yet be apparent that adapting device 34 can adopt many different forms, is not restricted to three start screw or helical pitch specifically, and can suitably comprises one or two screw threads.

In the illustrated embodiment, every screw thread 36 is around the circumferential extension of second cylindrical wall 26 about 120 °.Be appreciated that equally screw thread littler or more major thread scope all is fine.For example, every screw thread 36 can extend in greater than 360 ° scope at 90 °.There is meticulous thread density on ground preferably, screw-shaped helicitic texture with the vertical shifting of restriction cap portion 14 with respect to neck 12.Like this, thread density preferably has 6 to 12 screw threads on every linear inch.Most preferably, the spiral thread structure has the thread density of about 8 screw threads on every linear inch.

Compare, on the outside face of first cylindrical wall 22, with upwards and radially to projecting inward wall 24 joints or close on joint, neck 12 have a plurality of upwards and radially outward directed locking piece 40.Locking piece 40 is spaced from each other and around neck 12 circumference.Each locking piece 40 is by a thin disc 42 and first cylindrical wall 22 and/or make progress and radially be connected to projecting inward wall 24, this disc and locking piece 40 limit on cross-sectional plane upwards and radially outward directed lower surface 44, and lower surface 44 stops at end surfaces 46 places.Before connection, end surfaces 46 away from first cylindrical wall 22 and upwards and radially extend with lower surface 44 to projecting inward wall 24 and meets at right angles with the upper surface 48 to interior orientation downwards and radially substantially at right angles.With before the upper surface 52 of a disc 42 combines, upper surface 48 engages with a basic directed downwards neck surface 50 again in neck surface 50.

Can be clear that more that from Fig. 5 locking piece 40 is crooked, the lower surface 44 and first cylindrical wall 22 have identical radius of curvature and center of curvature like this.Upper surface 48 has constant thickness, and except the zone of disc 42 and neck 50, upper surface 48 also is crooked.

Though graphic locking piece 40 is spaced from each other and center on neck 12 along circumference, be appreciated that one or more (perhaps whole) locking piece 40 can be connected by pleat that extends or folding line between their sides separately.It is flexible to strengthen it that these pleats or folding line can have the wall thickness thinner than locking piece 40, perhaps can have identical wall thickness and be scraped along predetermined broken line to carve or shrink.

Have on the inside face of the interconnecting gangway office between the bore edges 16 and first cylindrical wall 22 contiguous, neck 12 has one radially to inner bulge 38, and radially inwardly the effect of protrusion 38 will be discussed in more detail below.

Cap portion 14 as shown in Figure 6 again, cap portion comprises a dome 60 with lower surface 62.Dome 60 radially outer edge with one downwards and radially outward bevelled surface 64 combine, inclined surface 64 combine with the annular sidewall 66 that depends on to form a skirt section of extension downwards again.

The annular sidewall 66 that depends on surface within it has cooresponding adapting device 70 on 68, can be repeatedly, engage with adapting device 34 on the neck 12 releasedly.In front of face the same, adapting device 70 can have various ways, but comprises be evenly distributed, many screw-shaped external screw thread structures in the example, has three start screw or helical pitch 72, thread density the chances are 8 screw threads of every linear inch.Equally, adapting device 70 need not be confined to three start screw or helical pitch, can suitably comprise one or two screw threads.If desired, adapting device 70 also can comprise four or five or more screw threads.

In an illustrated embodiment, every screw thread extends about 120 ° around the inside face 68 of the annular sidewall 66 that depends on.Be appreciated that equally if desired, length of thread can increase or reduce.For example, each screw thread 72 can extend in greater than 360 ° scope at 90 °.Equally, thread density also is not necessarily limited to about 8 screw threads of every linear inch, arrives in the scope of about 12 every linear inches but be preferably in about 6.

To those skilled in the art, if obviously adapting device 34 or one of 70 comprises spiral fashion external screw thread structure, can comprise the screw-shaped groove structure on another in two adapting devices so.If two spiral fashion external screw thread structures, so obvious one or two helicitic textures can be interrupted at the interval along its length.

Article two, the shape of helicitic texture can be configured to when one directly axially downward power be applied in the cap portion 14 when impelling cap portion to engage with neck 12, two screw threads can slip over mutually.In other words, when cap portion 14 is pulled on the neck 12, the screw thread 72 in the cap portion 14 be snapped to earlier on the screw thread 36 before screw thread 36 on the neck 12 engages.This can realize by the shape that screw thread 36 and 72 suitably are set, and for example can make thread-shaped become asymmetric cross-sectional plane to be arranged or make them not obvious.In addition, if desired cap portion 14 is rotated on the neck 12, screw thread 36 and 72 can have symmetrical cross-sections, and this is with asymmetric relative, and this also can be more obvious.

Except that cooresponding adapting device 70, the inside of cap portion 14 also has a ring plug 74, and ring plug 74 leans against on the lower surface 62 of dome 60 and with the annular sidewall 66 inner radial ground that depends on and separates.Ring plug 74 is limited by the wall 76,78 that is respectively inner radial and radially outer.Footpath outwards plug wall 78 combines to the surface 80 of interior orientation substantially downwards and radially with one at its end away from dome 60.Inwardly plug wall 76 is crossing with the footpath to the surface 80 of interior orientation downwards and radially for this, and is provided as the radially-outer surface and the conical cross-section at oblique angle together for ring plug 74.This conical cross-section is further by following characteristic strengthening, and the footpath is plug wall 78 edges and the vertical substantially direction extension in the plane of lower surface 62 outwards, and extend along downward and radially outer direction from lower surface 62 in footpath inwardly plug wall 76.

Compare, there are a plurality of ribs 82 that open along the circle spacing, vertically extending the outside in cap portion 14 on the outside face of the annular sidewall 66 that depends on, and rib 82 grips cap portion 14 as rhabdion to make things convenient for the user.Vertically extending rib 82 can be convenient to cap portion 14 is assembled on the neck 12 in the process of motorization assembly capping accessory 10.As ubiquitous in numerous caps, be formed with a downward little dimple 84 at the center of dome 60, any like this clout that stays after molded in cap portion 14 can not protrude into above the plane that dome 60 upper surfaces limit.

Except foregoing feature, on the inside face 68 of the annular sidewall 66 that depends on, has a radially inner salient 86 at a end away from dome 60.Radially limited by radially inside and downward surface 88 to inner bulge 86, surface 88 combines with inside face 68, forms interior shoulder 90.At the end away from inside face 68, radially inside and downward surface 88 is with downwards and radially outer surperficial 92 combining, and then, surface 92 combines with the end surfaces 94 of the annular sidewall 66 that depends on, end surfaces 94 along with inside face 68 rectangular directions extensions.

Radially between inner bulge 86 and adapting device 70, the annular sidewall 66 that depends on has a plurality of circumferential cracks or interval 96.These cracks or 96 separated at interval by easy fracture bridgeware 98, and limit a circumference line of weakness jointly, the skirt section of the downward extension that the circumference line of weakness will be limited by the annular sidewall 66 that depends on is divided into upper skirt and skirt end, and skirt end can be used as the tamper-evident band 100 of a reservation.As what it will be apparent to those skilled in the art, circumference crack or interval 96 can be formed by the secondary incision operation, can be mechanically formed after cap portion 14 is molded into.Perhaps, incision operation can be mounted to neck 12 back execution in cap portion 14.In another kind was arranged, circumference crack or interval 96 can form in cap portion 14 molding processes.Though molded circumference crack or interval 96 have the advantage that need not cap portion 14 is carried out any secondary operation except that being assembled to neck 12, and a shortcoming is arranged, if that is exactly not have bigger reprocessing, the intensity of bridgeware 98 is difficult for being adjusted.Another shortcoming is if there is not appropriate maintenance, to have the danger that disconnected (flashing) takes place to dodge in circumference crack or interval 96, and then influence the tamper-evident characteristic of capping accessory 10.These shortcomings can be avoided by the secondary incision operation.In addition, cap portion 14 just can utilize a simple axial mould molded at that rate.In this mould, mould only opens and closes on axially at one, and this mould is simpler, more cheap than multiaxis mould usually, operation is faster and more efficient.And the intensity of bridgeware 98 or size can be adjusted at an easy rate by change a simple blade on cutting machine.Certainly shortcoming is to need second machine to cut, and these may compare costliness when needs are produced in enormous quantities.

In order to assemble capping accessory 10, cap portion 14 is located at neck 12 tops as Fig. 7 (a) and (b) with on the direction (c).Cap portion 14 may be put on the neck 12 by propelling unit, and wherein the screw thread on the 72 interlock necks 12 of the screw thread in the cap portion 14 perhaps utilize a slewing arrangement that cap portion 14 is joined on the neck 12, and two helicitic textures meshes in a conventional manner.In any case, before screw thread 36 and 72 intermeshes, the adapting device 34 that radially passes through neck 12 on annular sidewall 66 inside faces 68 that depend on to inner bulge 86.When cap portion 14 was assembled to neck 12, adapting device 34 was on inside downwards and on the radial outside surface 92 of protrusion 86 radially, this with regard to some areas the joint portion 34 of protrusion 86 by neck 12.

After arriving the position shown in the accompanying drawing 7 (a), continue direction removable cap portion 14 towards neck 12, the end surfaces 94 of the feasible annular sidewall 66 that depends on engages with locking piece 40.Shown in accompanying drawing 7 (b), this joint occurs in radially outward locating of disc 42, and makes that locking piece 40 is folding or rotate around the junction of disc 42 and first cylindrical wall 22.This motion lasts till that always the lower surface 44 of locking piece 40 is pressed on the partes glabra of first cylindrical wall 22.Though it is columniform it should be noted that true upper wall, an identical radius and center of curvature are shared in these two surfaces, make the locking piece and first cylindrical wall be in a kind of aspectant closely relation.

When locking piece 40 pivots downwards, radially slip over its upper surface 48 to inner bulge 86, arrive the position shown in the accompanying drawing 7 (c) until these parts.On this position, radially cross the end surfaces 46 of locking piece 40 and at locking piece 40 with have between the bore edges 16 to inner bulge 86.In addition, locking piece 40 be received in radially inside protrusion 86 radially inwardly and 68 of the inside faces of the interior shoulder 90 that limits of downward surface 88 and the annular sidewall 66 that depends on.Simultaneously, the natural elasticity that forms the material of locking piece 40 impels locking piece 40 to go back to the molded reference position shown in Fig. 7 (a).Though this motion is stoped by cap portion 14, this bias voltage makes locking piece 40 engage closelyr near upper surface 48 parts of end surfaces 46 with the inside face 68 of the annular sidewall 66 that depends on.Certainly this end surfaces 46 that also means locking piece 40 will form relation more closely with radially inside protrusion 86.

When cap portion 14 was assembled on the neck 12, ring plug 74 was also received in the dispensing orifice 32, and dispensing orifice 32 is by being positioned at downwards and radially limiting to the periphery 30 of the radial inner end on the ring limit 28 of interior orientation.When doing like this, also radially slip over along periphery 30 downwards substantially, make ring plug 74 a little radially curve inwardly to the surface 80 of interior orientation.Same motion also makes and is bent downwardly a little to the ring limit 28 of interior orientation downwards and radially.In case all receive dispensing orifice 32, the restoring force that the inherent natural elasticity of the design of ring limit 28 and ring plug 74 and material causes will make that directly outwards plug wall 78 joins on the periphery 30 hermetically.Like this, under assembled state, the mutual action between ring plug 74 and the periphery 30 forms main sealing.

When bounded system was in assembled state, capping accessory 10 can be used for cardboard or other traditional carton box.To notice for this reason, will help to insert the little head (spud) of operation tool by the opening of the neck 12 that radially limits to inner bulge 38.Because there have bore edges 16 to have to be essentially smooth and smooth upper and lower surperficial 18 and 20, capping accessory 10 can be combined in the outside of carton panel or inner as required.Yet in another kind of embodiment, neck 12 has one or more extra projectioies, and these projectioies remain on capping accessory 10 on the specific direction with respect to the carton panels that the capping accessory will be installed with bore edges 16 cooperations are arranged.

In case capping accessory 10 is applied on the carton, the capping accessory will provide the closing appliance that can repeat to open and close and have good sealing and resealability energy as required for carton.In addition, capping accessory 10 also has a tamper-evident ability, with the prompting customer in first article passive mistake whether of opening in the front loading paper feeding cassette.This tamper-evident ability is to realize that by the tamper-evident band 100 of a reservation tamper-evident band 100 must separate with cap portion 14 before cap portion removes from neck 12.If the customer finds tamper-evident band 100 and just separated with cap portion 14 before capping accessory 10 is opened for the first time, the article in so might carton are stolen to be opened or is affected by alternate manner.The tamper-evident ability of capping accessory 10 is as follows.

Under assembled state, prevent that by the engagement between the end surfaces 46 of engagement between adapting device 34 and the adapting device 70 and locking piece 40 and the radially inside protrusion 86 cap portion 14 from axially being removed from neck 12.Closely make cap portion 14 leave neck 12 between the end surfaces 94 of the annular sidewall 66 that depends in addition, and the upper edge surface 18 near also preventing insertion instrument between two surfaces.Therefore, in order to remove cap portion, the user need be with respect to neck 12 rotocap portions 14.This just makes the screw thread 72 of adapting device 70 be raised to screw thread 36 tops of adapting device 34, makes also that radially inwardly radially inside the and downward surface 88 of protrusion 86 engages more fastening with the end surfaces 46 of locking piece 40.Cap portion 14 continues the prevention that motion upwards is subjected to locking piece 40 with respect to neck 12, the outward winding masterpiece that makes progress of cap portion of user is used on the easy fracture bridgeware 98 that radial separations opens as a result, and the upper skirt that easy fracture bridgeware portion 98 is used for the annular sidewall 66 that will depend on is connected to tamper-evident band 100.Disc 42 guarantees when the user continues to outward winding cap portion 14 that than the relative size of easy fracture bridgeware portion 98 easy fracture bridgeware portion 98 will break earlier before similar damage takes place locking piece 40.

As shown in Figure 9, in a single day easy fracture bridgeware 98 is damaged, and cap portion 14 can be removed and can distribute content from carton.Cap portion 14 can be re-used as required and then be removed arbitrary number of times from neck 12 again.Though easy fracture bridgeware 98 has ruptured, but should idea remain folding to locking piece 40, and between first cylindrical wall 22 and inside face 68, this has just guaranteed that tamper-evident band 100 remains on the neck 12 and can not be removed, unless capping accessory 10 and/or combination packaging are carried out physical damage.

In the example, tamper-evident band 100 remains on identical position with respect to neck 12 before and after initial the unlatching.Yet, have the lodging function in order to make tamper-evident band 100 so that possible surreptitiously the opening of easier caution customer, only need will the end surfaces 46 when having bore edges 16 and locking piece 40 folding downwards between first cylindrical wall, 22 parts elongate.

The design of the neck 12 shown in Fig. 3 and Fig. 5 provides significant manufacturing advantage and saves cost.Though also can be molded as the plastic closure accessory that neck has structure shown in Fig. 7 (c), but at that rate, locking piece is configured as radially salient from first cylindrical wall articulated section of this position (rather than fold into) downwards, such capping spare parts manufacture cooresponding costliness of getting up.Particularly, like this, the locking piece end surfaces can have undercut, and this undercut has only utilization could form along the mould that two lateral axiss are performed fighting/closed.On the contrary, the neck shown in Fig. 3 and 5 12 only can utilize along the mould of a lateral axis opening/closing and just can form.This just can save a large amount of instrument costs, and the step that effectively simplifies the operation.

Though the neck surface 50 in the accompanying drawing 4 substantially down, but in fact this surface can be 0.5 ° to 10 ° angle with the represented neck longitudinal axis of Reference numeral 54 and extend to the upper surface of disc 42 from upper surface 48, still make simultaneously the mould ON/OFF on the direction that is parallel to longitudinal axis 54 only of making neck 12, and do not need also can be transverse to the open/close mould of the direction of this axis.

Locking piece 40 at initial position upwards and from first cylindrical wall 22 radially outward, but can be rolled over or pivot and make it to engage or be adjacent to cylindrical wall, be that it can make first cylindrical wall 22 be formed with the wall thickness thinner than the other parts of neck 12 and use another advantage of locking piece 40.This has just directly saved the required plastic material of mold encapsulated shutter fitting 10, and can effectively reduce manufacturing cost.Though may think, the thickness that reduces by first cylindrical wall 22 can have influence on the operation of capping accessory 10, but in fact under assembled state, locking piece 40 is pressed on first cylindrical wall 22, this just means in use, with radially inwardly the effective thickness of the low neck of protrusion 86 junction points can be equal with the other parts of neck 12, and pleasure trip on foot is with competent its function.

Locking piece 40 can be manipulated the position from an original moulded location bending to, uses another advantage of this locking piece 40 to be to eliminate the vertical float of cap portion 14 with respect to neck 12.This is because the power that is bonded with each other between 14 locked 40 end surfaces 46 of cap portion and the radially inside protrusion 86 maintains fully.The natural elasticity of locking piece 40 impels them to get back to the original moulded position, and make the upper surface 48 on approach end surface 46 more closely engage with the inside face 68 of the annular sidewall 66 that depends on, help also to prevent that cap portion 14 from unclamping the transportation the place that is applied to carton from manufacturing location to capping accessory 10 the most at last.

Another advantage of above-mentioned sealing combination is, main sealing is positioned at a bit of but and distance 102 places of non-zero of distance second cylindrical wall 26 between ring plug 74 and the periphery 30.Usually, this segment distance 102 can be that 0.1mm is to 5mm.In a preferred embodiment, this segment distance 102 at 1.8mm between the 2.1mm.The advantage of this spacing between main sealing station and second cylindrical wall, 26 inside faces is to make that the clean solution of employed type enters in the water purification process.This structure also has can make light penetrate all surface of neck 12 so that carry out sanitary measures and make capping accessory 10 can be used on advantage in the aseptic packaging.

In addition, downward and natural lock ring intensity inner radial verge ring limit 28 has been strengthened the neck neck, and stops the radially inwardly avalanche of second cylindrical wall 26.The intensity of this increase can further reduce the thickness of wall, and then saves manufacturing cost by saving the required plastic material of mold encapsulated closed system.

Provide such advantage to the ring limit of interior orientation 28 downward also radially inner characteristics downwards and radially, the article of staying on the limit after promptly distributing often drip back by the distribution openings that is limited by dispensing orifice 32, and can not drip on the outside and screw thread 36 of neck 12.

Though the present invention is described the capping accessory is contained on the carton, those skilled in the art can know and be not limited thereto that the sealing combination can be integrally formed with container if desired.

Claims (38)

1. bounded system, comprise neck, the cap that engages with neck and be attached to the locking piece of neck, locking piece is positioned at primary importance with respect to neck, so that mold neck and locking piece, and be positioned at the second place with respect to neck, be removed from neck with at least a portion that prevents cap, when cap was assembled to neck, locking piece moved on to the described second place from described primary importance.

2. a kind of bounded system according to claim 1 is characterized in that, neck and locking piece are molded into one.

3. bounded system according to claim 1 and 2 is characterized in that, when described primary importance moves on to the second place, locking piece on neck attachment point and hinge through.

4. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that locking piece is connected with neck by flexible connector.

5. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that when being assemblied in cap on the neck, cap makes locking piece bend to the described second place from described primary importance itself and the engaging with locking piece from the outside of the attachment point place of neck.

6. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that when the described second place, locking piece is resiliently biased and get back to described primary importance.

7. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that neck limits a longitudinal axis, at described primary importance place, locking piece is with respect to described axis tilt.

8. bounded system according to claim 7 is characterized in that, locking piece tilts 0 ° to 15 ° upwardly and outwardly with respect to described axis.

9. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that neck limits a longitudinal axis, when in the described second place, locking piece is basically parallel to described axis orientation.

10. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that, neck limits a longitudinal axis, locking piece comprises the lock face that is attached to the position on the neck away from this locking piece, when locking piece was positioned at the described second place, lock face was positioned at the plane rectangular substantially with described longitudinal axis.

11., it is characterized in that neck comprises a wall according to the described bounded system of aforementioned arbitrary claim, locking piece is attached to this wall, and when described primary importance place, locking piece extends transverse to wall, when described second place place, locking piece is basically parallel to wall and extends.

12. bounded system according to claim 11 is characterized in that, when described primary importance place, locking piece and wall are adjacent.

13. according to claim 11 or 12 described bounded systems, it is characterized in that wall is columniform, locking piece is provided with similar curvature, to allow when the described second place place locking piece in the face of cylindrical wall.

14., it is characterized in that wall has the wall thickness thinner than the other parts of neck according to each described bounded system in the claim 11 to 13.

15. according to each described bounded system in the claim 11 to 14, it is characterized in that, locking piece comprises the lock face that is attached to the position of wall away from locking piece, and when locking piece was positioned at the described second place, lock face is positioned at the described longitudinal axis envied and hated rectangular plane.

16. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that, neck limits a hole, locking piece has the first relative end and second end, locking piece is at first end or close on the first end place and be attached on the neck, when locking piece when described primary importance moves to the described second place, described second end moves along the direction away from the hole roughly.

17., it is characterized in that cap comprises an inside projection according to the described bounded system of aforementioned arbitrary claim, when locking piece was positioned at the described second place, this projection was suitable for meshing with locking piece.

18. bounded system according to claim 17 is characterized in that, inside projection comprises downwards and outside surface, so that inside projection slips over locking piece when cap is assembled on the neck in a downward direction.

19. according to claim 17 or the 18 described bounded systems of quoting claim 10 or at 15 o'clock, it is characterized in that, inside projection limits a surface, and when locking piece was positioned at the described second place, this surface can be in aspectant position with the lock face of locking piece.

20., it is characterized in that neck is columniform, and inside projection comprises the locking projections of annular or part annular according to each described bounded system in the claim 17 to 19.

21., it is characterized in that cap is connected the tamper-evident band in skirt section with comprising a skirt section and easy fracture according to each described bounded system in the claim 17 to 20, inside projection is positioned on the tamper-evident band.

22. bounded system according to claim 21, it is characterized in that in the described second place, locking piece keeps the tamper-evident band with respect to neck, thereby the attempt that cap is removed from neck will make that the easy fracture attaching parts between skirt section and the tamper-evident band is destroyed.

23., it is characterized in that the tamper-evident band is connected to the skirt section by a plurality of easy fracture bridgewares according to claim 21 or 22 described bounded systems.

24. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that neck is provided with adapting device, be used for repetition and releasedly with cap on corresponding matching device engagement.

25. the described bounded system of claim 24 when quoting in the claim 21 to 23 each is characterized in that the corresponding matching device is arranged on the skirt section.

26., it is characterized in that neck limits a hole according to claim 24 or 25 described bounded systems, be arranged on adapting device on the neck between hole and locking piece.

27., it is characterized in that adapting device and corresponding matching device comprise the spiral thread structure according to each described bounded system in the claim 24 to 26.

28. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that, locking piece comprises a plurality of locking members spaced apart from each other, these locking members are around the neck circumferential arrangement, and each locking member is attached to neck, and can move between the primary importance and the second place, at the primary importance place, so that mold neck and locking member, at second place place, locking member removes from neck with at least a portion that prevents cap with respect to the neck orientation locking member with respect to the neck orientation.

29. bounded system according to claim 28 is characterized in that, a plurality of locking members connect by material web.

30. bounded system according to claim 29 is characterized in that, the thickness of material web is thinner than locking member.

31., it is characterized in that material web has indentation or thickness to reduce along predetermined broken line according to claim 29 or 30 described bounded systems.

32., it is characterized in that material web comprises one or more folds according to each described bounded system in the claim 29 to 31.

33. according to the described bounded system of aforementioned arbitrary claim, it is characterized in that neck comprises a cylindrical wall, and limit and the radially inside isolated circular port of cylindrical wall, when being assembled to cap on the neck, circular port be set on the cap the ring plug sealed engagement.

34. bounded system according to claim 33 is characterized in that, the radially inside spaced apart 0.5mm of circular port and cylindrical wall is to the interior distance of the scope of 5mm.

35., it is characterized in that the surface that limits circular port is connected with cylindrical wall by radially inner ring limit according to claim 33 or 34 described bounded systems, radially inner ring limit towards circular port downwards at an angle.

36., it is characterized in that bounded system comprises for attaching to the capping accessory on carton or other container according to the described bounded system of aforementioned arbitrary claim.

37. according to each described bounded system in the claim 1 to 36, it is characterized in that bounded system and container are integrally moulded, neck has formed the neck of container.

38. a method that forms the neck of the described bounded system of aforementioned arbitrary claim may further comprise the steps:

A plurality of mold components are provided, and these mold components can be cooperated and are suitable for forming the die cavity of neck with qualification;

Along or be parallel to single axis and move described mold component, thereby the closing molding parts are to form described die cavity;

Plastic material is introduced described die cavity;

Along or be parallel to described single axis and move described mold component, thereby separate described mold component;

Take out molded good neck.

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