CN105899439A - Closure for a container - Google Patents

Abstract

A closure assembly for use on a container neck finish has an inner cap which threadedly engages the neck finish and an outer cap which is received by the inner cap. Torque lugs on the outer cap cooperate with abutment formations on the inner cap such that rotation of the outer cap drives the inner cap onto the neck finish. Cooperative engagement between the two caps is achieved by downward axial movement of the outer cap. An arrangement of ramp sections on the inner cap and an arrangement of interior lugs on the outer cap provide an assist feature helping to pull the outer cap in the axially downward direction. Another feature of the closure assembly includes a spring-biasing relationship between the inner and outer caps. The inner cap also includes an abutment structure which cooperates with the container to limit drop test deformation of the container.

Description

Closure member for container

Cross-Reference to Related Applications

The rights and interests of the U.S. Provisional Patent Application Serial Article No. 61/905,488 that on November 18th, 2013 submits to are enjoyed in the application request, and it is herein incorporated by reference.

Background technology

A structure for Childproof (CR) closure member is to use the combination of the enclosing cover of inner cap and cooperation.When the bottleneck of corresponding container has external screw thread, inner cap is generally constructed and arranged to have female thread, and it allows inner cap to assemble securely by being screwed on bottleneck.Although it is contemplated that other connecting structure gone out between inner cap and container bottle neck, but exemplary embodiment disclosed herein shows threaded.

In order to Childproof feature or ability being attached to this inner cap and enclosing cover structure, employ the joint between the two lid.In order to remove the juncture of inner cap from container or method relates to thinking and performs specific movement and the manipulation of two very difficult lids for child.Child performs required manipulation by being unlikely to be able to open container.

When container is for the dry substance of particular form, Childproof ability can meet by preventing from simply being completely removed inner cap by child.But, when fluid product in a reservoir time, it is important that the closure state between inner cap and container is not destroyed by child when child plays or handles inner cap and enclosing cover.When there is fluid product, it is critically important for keeping sealing.When container is opened in anticipated user expectation, enclosing cover is used for engaging inner cap so that inner cap can remove from the bottleneck of container.

Referring now to exemplary embodiment, container by inner cap be threadedly engaged when initially covering, inner cap and enclosing cover have been previously assembled at together as double-canopy Guan Bi sub-component.Then this double-canopy sub-component is shifted onto on container bottle neck as a unit.Generally, enclosing cover grasps in some manner, and it is the enclosing cover that the screw thread pushing on container bottle neck by inner cap assembles.In order to realize inner cap secure makeup to bottleneck and in order to the ad hoc structure of do so, inner cap and enclosing cover in an efficient way becomes critically important.These ad hoc structures must also consider about removing program or step, in order to outwards winding inner cap from bottleneck, and therefore, it is possible to opens container.Needs when being to make Childproof (CR) closure member relative to child by the more complicated removing program being able to carry out.

Another consideration in the design of CR closure member is to use what kind of automatic capping device.If inner cap is firm and reliable with the joint of enclosing cover, then inner cap is manually applied to relatively easy execution (when e.g., being closed again container) on bottleneck by enclosing cover.When automatic equipment is for Capping operation, sensing and sense of touch feedback for people are the most reproducible.

When using automatic capping device, catch enclosing cover to promote inner cap to must be careful to design so that grasp torsion and tension does not haves.In the design of equipment and in equipment catches the mode of enclosing cover, it is necessary to consider these consequences.Can be used for solving any tension problem roughly although machine torque is arranged, but the safety of enclosing cover grasps and can more have challenge.One selection is to shape external diameter or the outer surface of enclosing cover in the way of unique, to cooperate with automatic capping device.If capping device uses to coordinate and covers sleeve, sheath or the chuck with surrounding outside automatically, then this double-canopy closure member sub-component can suitably move for automatically adding a cover and handle.The distinct features of the outer surface of enclosing cover also provides the grasping of the inner cap improvement manually removing and being closed again on the bottleneck of container.

Considering the combination of current inner cap and enclosing cover, its structure neutralizes it and is envisioned by the present invention with the improvement in relation each other.

Summary of the invention

Childproof (CR) closure member on a kind of bottleneck for being assembled into container includes the enclosing cover of inner cap and cooperation.Inner cap is constructed and arranged to be screwed on the bottleneck of container, and enclosing cover engages inner cap, originally forms the closure member sub-component of two components.By using enclosing cover as the driving lid for inner cap (that is, driven lid), inner cap can be screwed on bottleneck, and removes from bottleneck.In order to perform any action, enclosing cover must be securely engaged inner cap in some manner, and juncture must be the most reversible so that inner cap can be applied on bottleneck and remove from bottleneck.

Although inner cap and enclosing cover are pre-assembled as double-canopy sub-component, but the joint between two lids that inner cap is shifted onto the purpose on container bottle neck needs enclosing cover to advance axially downwards about a certain degree of of inner cap.Inner cap and enclosing cover engage the most in desired manner to need the fact that advance axially downwards to indicate so that inner cap can be driven the tight thread to bottleneck to engage by enclosing cover.In this context, the moving axially of direction of outer cover rim inner cap is referred to " downwards ".When manually removing inner cap from the bottleneck of container, enclosing cover needs to move along this direction axially downwardly, cause enclosing cover interior (on) the first torque lug on surface inner cap outer (on) cooperate between the second torque lug on surface.This of the lug of torque in groups of cooperation cooperates and is rotatably driven firmly and reliably engaging of inner cap by using enclosing cover to provide.The joint (noting existing with the uniform and multiple corresponding pattern of repeat patterns) of these the first torque lugs and the second torque lug occurs with (CW) direction of rotation clockwise with (CCW) direction of rotation counterclockwise.

Before using enclosing cover to make inner cap, in-migration engages with bottleneck thread or falls back for removing inner cap from bottleneck, needs downward the moving axially of enclosing cover.Enclosing cover includes a class spring biased structures, and the resistance thus relative to the effect that is travel downwardly of enclosing cover increases closer to inner cap moving aspect axially downwards along with enclosing cover.Although this spring bias is only relatively light to medium, but it provides the relation between inner cap and enclosing cover, and this is easy to the use for this double-canopy combination conception.

CR feature disclosed herein is about the effort controlling the inner cap removing from bottleneck.When making inner cap be advanced on bottleneck, during original adding a cover or when closing container after usage, it is not necessary to any CR ability.Therefore, the traveling axially downwards of the enclosing cover when being applied on bottleneck by inner cap can be less, and therefore removes from bottleneck compared to inner cap, and resistance is less.It is desired for increasing the desirable degree advanced axially downwards or scope for CR ability, because the medium or slightly increase of the increase of movement and resistance makes the unlatching of container have bigger challenge compared to simply closed container for child.

In order to facilitate (although slightly) difference of the gained of difference and the force level advanced axially downwards, the joint between inner cap and enclosing cover uses circumferential ramps structure, in order to provide torque assist when being screwed on bottleneck by inner cap.When being outwarded winding from bottleneck by inner cap, this torque assist feature exists.But, assistance degree is less compared to when being screwed into when outwarding winding.These torque assist ramp structures of lower periphery being positioned at inner cap sidewall cooperate with the specific form of each the first torque lug.The axial width of each the first torque lug is gradually increased to leading edge from trailing edge along clockwise direction.In other words, when the first torque lug is for engaging the second torque lug and using enclosing cover to promote inner cap, the leading edge of each the first torque lug is thicker than its trailing edge in the axial direction.As a result, it is desirable to traveling axially downwards less, in order to arrive the point of first torque lug engagement the second torque lug.This joint by means of surface and surface against, the leading edge or the surface that employ each the first torque lug promote and drive each the second torque lug.Along contrary direction of rotation, being to rotate counterclockwise in the case, the relatively thin edges of each the first torque lug becomes the leading edge that engage against corresponding with the second torque lug.Engage against to realize this, need enclosing cover to advance axially downwards about the additional of inner cap.In other words, the first torque lug needs to push away further downward towards inner cap, in order to engage against.The torque assist feature using the change of the axial width between ramp structure and leading edge and the trailing edge of each the first torque lug as the outer wall of inner cap or a part for outer skirt is two improvement provided by the present invention according to exemplary embodiment.In an alternative embodiment, the first torque lug has substantially uniform thickness.

Another design consideration of the type of CR closure member disclosed herein relates to the test request that falls of the Ministry of Communications (DOT) must being fulfilled for.Test of falling specifies height and upper limb or the worst-case of corner collision.When the container of pattern disclosed herein experience this fall test time, the upper axial end of the bottleneck of container is likely deformed into the degree producing permanent twist, and container leakage may thus reverse and cause.Subproblem is the relatively thin wall on the top of the bottleneck of the thicker wall compared to the axially lower part providing externally threaded bottleneck.In order to limit degreeof tortuosity, inner cap include the part as sidewall be radially inwardly directed against projection.This projection is segmentation or continuous print annular section.This bossing of sidewall extends internally, and its internal diameter is less than externally threaded full diameter.When inner cap is fully threaded on bottleneck, this projection is positioned near the transitional region between the top (relatively thin-walled portion) of bottleneck and the bottom (relatively thick wall part) of cervical region.This projection provides the annular ring around this transitional region or segments in a circular shape ring, and doing so provides antagonism bottleneck potential torsion against surface or structure.This projection limits degree or the scope of bottleneck deformation, and thus be excluded that reverses to may the point of leakage.

Description together with exemplary embodiment is described by further feature provided by the present invention and improvement.

Accompanying drawing explanation

Fig. 1 is the front elevational view of the container assemblies according to exemplary embodiment.

Fig. 2 is the front elevational view of the partial cross section of the container assemblies of Fig. 1.

Fig. 3 is the front elevational view of the container assemblies of Fig. 1.

Fig. 4 be the bottleneck of the container of Fig. 3 partial enlargement before elevational view.

Fig. 5 be the closed structure of the diagram of Fig. 2 partial enlargement before elevational view.

Fig. 6 is the front elevational view of the complete cross-section of the sub-component of inner cap based on the first cutting planes and enclosing cover.

Fig. 7 is the front elevational view of the complete cross-section of the sub-component of the inner cap of Fig. 6 based on different cutting planes and enclosing cover.

Fig. 8 is the front elevational view of the complete cross-section of the inner cap of the seal cartridge with interpolation and enclosing cover.

Fig. 9 is the perspective view of the inner cap of a component of the double-canopy closure member sub-component including Fig. 5.

Figure 10 is the top plan view of the inner cap of Fig. 9.

Figure 11 is the front elevational view of the inner cap of Fig. 9.

Figure 12 is the bottom plan view of the inner cap of Fig. 9.

Figure 13 is the front elevational view of the complete cross-section of the inner cap of the Fig. 9 seen such as the line 13-13 along Figure 10.

Figure 14 is the front elevational view of the complete cross-section of the inner cap of the Fig. 9 seen such as the line 14-14 along Figure 10.

Figure 15 is the perspective view of an embodiment of the enclosing cover of other component of the double-canopy closure member sub-component including Fig. 5.

Figure 16 is the top plan view of the enclosing cover of Figure 15.

Figure 17 is the top plan view of the enclosing cover of Figure 15.

Figure 18 is the bottom plan view of the enclosing cover of Figure 15.

Figure 19 is the front elevational view of the complete cross-section of the enclosing cover of the Figure 15 seen such as the line 19-19 along Figure 16.

Figure 20 is the front elevational view of the complete cross-section of the enclosing cover of the Figure 15 seen such as the 20-20 along Figure 17.

Figure 21 is the perspective view of another embodiment of the enclosing cover of the double-canopy closure member sub-component being applicable to Fig. 5.

Figure 22 is the front elevational view of the enclosing cover of Figure 21.

Figure 23 is the top plan view of the enclosing cover of Figure 21.

Figure 24 is the front elevational view of the complete cross-section of the enclosing cover of the Figure 21 seen such as the line 24-24 along Figure 13.

Figure 25 is the top plan view of the enclosing cover of Figure 21.

Figure 26 is the front elevational view of the complete cross-section of the enclosing cover of the Figure 21 seen such as the 26-26 along Figure 25.

Figure 27 is the bottom plan view of the enclosing cover of Figure 21.

Detailed description of the invention

For promoting to understand the purpose of the principle of the present invention, now with reference to the embodiment shown in accompanying drawing, and language-specific will be used for describing it.However, it will be understood that the most thus limit the scope of the present invention.Any modification of described embodiment and other retrofit, and other concept of application any of principle as of the invention described herein be the technical staff in the field that the present invention relates to general it is appreciated that.Show in detail one embodiment of the present of invention, but those skilled in the art is not it will be clear that features more incoherent with the present invention can illustrate.

Referring to Fig. 1-8, it is shown that the container group 20 of Guan Bi, it is constructed and arranged to keep fluid product.Although shown container actually can keep any product of flowable character, but focus on fluid product herein, disclosed inner cap must be maintained on container bottle neck in one way, prevent the leakage of any opinion about Childproof (CR) by this way.

Assembly 20 includes container 22, inner cap 24 and cooperation and the enclosing cover 26 engaged.Canister 22 includes threaded neck 28, and it limits opening 30.Inner cap 24 is constructed and arranged to have a series of female thread 32, and it cooperates with bottleneck thread 34 with filling the assembly of inner cap 24 and is affixed on bottleneck 28.In the exemplary embodiment, including seal cartridge 35.Although this seal cartridge can include the part for inner cap and enclosing cover before adding a cover, but focuses on double-canopy combination, regardless of whether include seal cartridge 35 herein.

In the exemplary embodiment, container 22 is made up of the metal being suitable for, and is used for keeping fluid product, and its feature indicates needs to include that Childproof (CR) feature or ability are as the inner cap 24 of assembly 20 and a part for enclosing cover 26 structure.Bottleneck 28 is constructed and arranged to have the threaded portion 36 including bottleneck thread 34, the bottleneck portion 38 of extension, and the frustum of a cone transition portion 40 between part 36 and part 38.Each in these bottleneck 28 parts is annular, and generally concentric with each other parts.The manufacture of container and bottleneck 28 result in the wall thickness thinner thickness compared to threaded portion 36 of bottleneck portion 38.This type of container assemblies experience DOT falls test, to check whether to produce any torsion or the destruction of the leakage that may result in container assemblies content.Due to different metal wall thickness, therefore there is the bigger probability that nozzle-end deforms or distorts during test of falling.If the degree that bottleneck deformation or distortion leak to generation or scope, then structure will not pass through required DOT test.

It is included for the annular abutment projection 42 of a part for sidewall 44 and is used as the structure (see Fig. 9-14) of inner cap 24.Protruding 42 ring forms preferably with internal diameter, this internal diameter is less than the full diameter of screw thread 34.When projection 42 is radially inwardly extending, it is positioned at when inner cap 24 is fully threaded to bottleneck 28 near transition portion 40 (see Fig. 5).Explaination the most in detail is used as a part for the description of inner cap 24 by the structure of this projection 42 and layout.Protruding 42 annular rings providing the inner surface around inner cap.Alternately constructing, projection can be segmentation.When inner cap 24 is fully threaded on bottleneck 28, protruding 42 are positioned at the position about bottleneck, test deformation and the distortion of the bottleneck caused to contribute to limiting to be fallen by DOT.Functionally happens is that, this projection 42 interlayer, and as limiting and be hopeful to prevent any bigger distortion of the bottleneck of the leakage of liquid contents that will occur after DOT falls test or deformation range or degree against thing.Six radially inwardly extending lug 42a being equally spaced and protruding 42 overall combinations.These lugs cooperate, to contribute to being held in place optional lining 35.

Referring now to Fig. 9-14, inner cap 24 starts to illustrate with the perspective view of Fig. 9.Inner cap 24 is overall one piece molded plastic component, and it includes the spoke structure 48 on annular sidewall 44, wainscot 46, top panel, and the lower ring 50 formed together with the chamfered portion 52 of multiple like configurations being equally spaced.

In the exemplary embodiment, there are two chamfered portions 52, and each chamfered portion 52 is included between A and B the fluctuating section 54 extended.First chamfered portion 56 extends between A and C, moves along CW direction.Second chamfered portion 58 extends between B and D, moves along CCW direction.When moving along CW direction, the some D of a chamfered portion 52 overlaps with the some C of back bevel part 52.As shown in Figure 11, the inclined-plane section 58 of the less inclination that chamfered portion 56 is the most flat is steeper.It is, however, contemplated that for alternative a part be that two inclined-plane sections can have same tilt.

The inner surface 60 of sidewall 44 utilizes screw thread 32 to have female thread.Rib 42a is equally spaced above screw thread vertically.Protruding 42 also above screw thread, and radially inwardly extending exceedes screw thread 34.Sidewall includes frustoconical sections 62, and its generally position with protruding 42 overlaps.This section 62 is transitioned into generic cylindrical section 64, and it holds top panel 46.Spoke structure 48 include six be equally spaced to extraradial spoke 66.These independent spokes 66 constitute the second torque lug As mentioned above." lug " part 68 holds the dome 70 (see Figure 13 and 14) of rising.The radical length of each spoke 66 extends close to the ring edge of cylindrical sector 64.Each spoke 66 has uniform axial height or thickness.

Dome 70 cooperates with the prominent finger structure (prominent finger 84) of enclosing cover 26, in order to provide the spring-biased relation between inner cap 24 and enclosing cover 26.Possible and non-immediate clearly inner cap 24 a structural relation is each spoke 56 circumferential position about the section of each chamfered portion 52.Relevant to this relation is the cooperation relation of the bonding part (that is, architectural feature) of enclosing cover 26.

Referring now to Figure 15-20, start with the perspective view of enclosing cover 26 as shown in Figure 15, it is shown that the first embodiment of enclosing cover.Enclosing cover 26 has octagon outer surface, and it has eight similarly shaped and panels of being equally spaced or face 71.The enclosing cover of this special style represents in two lid embodiments disclosed herein.Figure 21-27 shows the second enclosing cover embodiment.The two lid embodiment about on inner cap 24 and its of surrounding to be bonded on be functionally equivalent.Select unrelated with enclosing cover, the structure of inner cap and arrange constant.For major part, inside or inner structure are substantially the same with feature or the two enclosing cover embodiment.Therefore, the detailed description of enclosing cover 26 is the most applicable, and is applicable to other enclosing cover embodiment.

Enclosing cover 26 is overall single-piece molded plastic component, and it includes annular sidewall 72 and top panel 74.Sidewall 72 is constructed and arranged to have the octagon including eight faces 71.Each face 71 is defined by vertical rib structure 73, and structure 73 provides unique decoration profile.The surface profile of the sidewall 72 of other type or pattern or shape can be used as to grab or be stuck in the mode on enclosing cover 26 by automatic capping device, in order to promote inner cap 24 to be initially assembled into bottleneck 28 for inner cap 24.

Sidewall 72 has axial lower edge 76.The inner surface 78 of lower edge 76 is formed with six lugs equidistantly projected radially inward or lug 80.Each chamfered portion 52 all includes continuous print lower edge 82, its shape and change in location, and then moves to next chamfered portion 52 from a chamfered portion 52 in the whole circumference of this lower ring 50 and repeat.Each lug 80 is positioned at below lower surface 82, and wherein each lug 80 all positions about corresponding chamfered portion 52.

This relation between lug 80 and lower surface 82 creates the sub-component of two lids 24 and 26.This pair of member cover sub-component generally includes lining, or can include lining the most alternatively.But, in terms of main structural member, two lids create double component sub-component, for covering container bottle neck 28.The combination of inner cap and enclosing cover is by whether including that the judgement of seal cartridge (such as seal cartridge 35) affects.

In the case of inner cap 24 and enclosing cover 26 fit together, the dome 70 that four prominent finger 84 contacts being formed on the inner surface 86 of top panel 74 raise.The shape of lug 80 allows enclosing cover 26 to be assembled on inner cap 24 by latch or be clasped.The relative size of the two lid 24 and 26 and be shaped such that enclosing cover 26 can be depressed on inner cap 24 (see Fig. 5-8) as shown in the figure.When finger 84 is moved towards the dome 70 raised, lug 80 is positioned at below lower ring 50 so that each lug 80 raises relative to the lower surface 82 of its inclined surface part 52.When initial engagement, enclosing cover 26 can original adoption about any circumferential position of inner cap 24.Do not exist enclosing cover 26 about the control of the position of inner cap 24 or restriction.This means that each lug 80 can use the substantially any circumferential position of the various sections about inclined surface part 52.No matter about the possible relative initial position of inner cap 24 how, this all repeats due to equal spacing with the identical geometric ways of each lug 80 having in its inclined surface part 52 or replicates six times enclosing cover 26 in the same manner.

Enclosing cover can be by any interference between finger 84 and the dome 70 raised with give enclosing cover 26 and affect with some minimum or limited degree about the rotary freedom of inner cap 24 about the initial alignment of inner cap.Such as, each lug 80 is positioned in the corresponding fluctuating section 54 of a chamfered portion 52 by the possible position initially taken a seat.This certain position presents the top panel 74 of enclosing cover 26 and has the position of itself and the maximum separation of the top panel 46 of inner cap 24.

The inner surface 86 of the top panel 74 of enclosing cover 26 is formed as having six equidistant torque lugs 88 radially extended.Each torque lug 88 each depend on direction of rotation and therefore the direct of travel of each torque lug 88 and there is the radial taper when it is radially inwardly extending, and the circumferential taper between leading edge and trailing edge.Each torque lug 88 is constructed and arranged to coordinate between adjacent spoke 66, is threadedly engaged with bottleneck 28 for being pushed by inner cap 24.When lug 80 orients rotatably to coordinate in corresponding fluctuating section 54, upper cover 24 is directed to a position or scope the most axially upward so that torque lug 88 is the most unmated between spoke 66.When move axially downward by direction for enclosing cover 26, will there is a point in this is travel downwardly, torque lug 88 initially enters the space between adjacent spoke 66.Until such as torque lug 88 can be against the time of corresponding spoke 66, by means of the main driving force for inner cap 24 of enclosing cover 26 unrealized.Although can be depending on the level of the friction with bottleneck thread or scope there are enclosing cover 26 some initial rotations to inner cap 24, but for making main driving force that inner cap 24 is advanced on bottleneck 28 by means of the joint of the torque lug 88 against corresponding spoke 66.Each torque lug 88 has unique construction, and it is a feature of invention disclosed.Envisioning, spoke 66 and torque lug 88 can be contrary.This will imply that the torque lug 88 placed on inner cap 24 and the spoke 66 on enclosing cover 26.In terms of driving and driven structure, arbitrary layout is all acceptable.

Inner cap 24 is rotatably driven at least to the surface depending on causing torque lug 88 against each spoke 66 by the ability of inner cap complete pull-up with the point being joined on bottleneck by enclosing cover 26 so that the rotation of enclosing cover 26 promotes owing to it cooperates or driving torque lug 88 is against spoke 66.This layout allow for enclosing cover 26 and rotates the rotation driving inner cap, in inner cap 24 full threaded engagement to bottleneck 28.

In the case of inner cap and enclosing cover are such as described assembling and in the case of lug 80 is positioned at each chamfered portion 52, the position no matter those lugs position especially, torque lug 88 all with spoke 66 debonding.In the case of the clockwise manually or automatically rotation of cover rim outside, the first interaction between inner cap and enclosing cover starts the position occurred and the most independent lug 80 can initially position, and there are those lugs and contacts the time point of the first inclined-plane section 56.Assuming that inner cap runs into a certain degree of screw thread resistance at this point, then the continuation of enclosing cover 26 rotate each lug 80 will be caused to slide along inclined-plane section 56 or along inclined-plane section 56 against, enclosing cover direction axially downward is promoted.Therefore, when each lug 80 along its inclined surface section 56 downwardly against time, the downward axial direction of outer cover rim is advanced.This lug 80 and inclined-plane section engage and ultimately help to make torque lug 88 to enter just position before engaging with spoke 66.Although four fingers 84 of the upper surface that contact raises dome 70 produce spring bias slightly now, but the resistance waterpower being travel downwardly enclosing cover about inner cap is the most relatively small, and enclosing cover 26 about inner cap 24 suitably engage be used for being rotatably driven inner cap it is critical only that downward moving axially, in order to be positioned to four torque lugs 88 become abutting relation with six spokes 66.The torque drag provided by engaging between lug 80 with chamfered portion 52 continues, until just contacting between torque lug 88 with spoke 66.Rotating with reference to the enclosing cover 26 corresponding approximately to five degree of " just before ".Utilize the rotation of the most other five degree, between torque lug 88 with spoke 66, contact generation.Along CCW direction, it is achieved continuing needed for contact is rotated between 20 to 30 degree.Once leading edge or the surface of each lug 88 abuts against spoke 66, then rotating of enclosing cover 26 drives inner cap 24 to rotate the degree can being screwed into securely on bottleneck to inner cap.In an alternative embodiment, the axial width of each torque lug 88 is basically identical.

Each torque lug 88 as radially inwardly extending unique wedge shape also has the unique geometry about its axial width.The leading edge of each torque lug 88 that CW rotates have rotate more than CW during as the axial width of axial width of opposite edges of trailing edge.

Rotating for CW, the thicker leading edge of each torque lug 88 means that enclosing cover moves axially towards less needed for inner cap, in order to set up between two groups of torque lugs (the torque lug 88 of spoke 66) against.Therefore, moving forward by the rotation of enclosing cover for inner cap, the relatively small axial traveling of enclosing cover is required, in order to set up torque lug engagement.This lug 88 work being axially advanced through the angled faces with correspondence the first inclined-plane section 56 relative to each chamfered portion 52 is assisted.

CCW for inner cap 24 rotates, need to set up between torque lug 88 and spoke 66 against, and in the direction, need largely or the traveling axially downwards of scope.The circumferential taper character of each torque lug 88 result in the CW of inner cap and rotates this uniqueness difference between the amount advanced axially downwards or the degree needed for rotating compared to the CCW of inner cap 24.Along CCW direction, the axial relatively thin side of each torque lug 88 is aligned at the spoke 66 of its correspondence.In order between torque lug 88 and spoke 66 CCW drive against, need enclosing cover 26 advancing axially downwards more greatly about inner cap 24.The bigger resistance (even if waiting until slightly in being still) creating the most again between four fingers 84 and the dome 70 raised of axially advancing of this increase.Generally, inner cap 24 removes the task of becoming more complicated from bottleneck 28.In the case of needing enclosing cover 26 direction axially downward to advance further, owing to finger 84 engages with the dome 70 raised, therefore run into bigger resistance.This needs the most again to be applied slightly larger power by user.But, CR configuration aspects main difference is that amount of movement axially downwards, needed for this is enclosing cover, in order to suitably engage inner cap.To make to open task more difficult with the degree advanced axially downwards of spring-biased resistance combination, and child can not perform these steps.Therefore, structure and the layout opened by container to double-canopy sub-component structure in conjunction with these structures and corresponding step result in generation double-canopy Childproof (CR) closure member.

At inner cap 24 from the removing of bottleneck 28 or CCW are outwarded winding, lug 80 engage with chamfered portion 52 offer enclosing cover 26 mobile axially downwards in can there are some and assist, but along CCW direction, employ inclined-plane section 58.This lid aiding in 20 to 30 degree kept before torque lug 88 contacts spoke 66 rotates and terminates.

Referring now to Figure 21-27, start to show the second embodiment of enclosing cover with the perspective view of enclosing cover 100 as shown in Figure 21.Enclosing cover 100 is overall one piece molded plastic component.Enclosing cover 100 has sidewall 101, and it has star outer surface, has the equidistant axial ribs 102 to external rotation of six analogous shapes.The enclosing cover of this special style represents the second embodiment.Two enclosing cover embodiments disclosed herein including enclosing cover 26 and 100 each have interior or internal structure, and it is structurally and functionally equal to each other.The enclosing cover 26 and 100 of each pattern have the same form with inner cap 24, coordinate, function and joint.Sole difference between the two enclosing cover embodiment relates to its corresponding external overall decorating and profile.Enclosing cover 26 is best described as having decoration profile based on its eight sides outward appearance produced by face 71.This is not the octagon of geometrically " perfect ", and wherein its adjacent surface 71 is linked by each face 71 with sharp edge.As an alternative, owing to the addition of vertical rib 73, therefore this geometry is generally octagon.These ribs 73 create ornamental pattern, and this pattern is unusual and separately adjacent surface 71.

In the case of enclosing cover 100, a part for its ornamental pattern is to having each of little flat tip 104 to the profiling of extraradial rib 102, and tip 104 is circular on each corner.Male section 108 is equally spaced between adjacent rib 102.The sidepiece 110 of each rib 102 extends to little concave regions 112.Adjacent concave regions 112 represents the end points of each corresponding male section 108.This is the repeat patterns of six times occur.Being described as star, this enclosing cover 100 sidewall 101 provides unique and distinguished overall decoration profile.Additionally, the some type of surface scan of enclosing cover or setting provide any automatic capping device catches or snap into enclosing cover 26, the convenient manner on 100, it is rotatably driven on bottleneck 28 for by inner cap 24.Although multiple design is applicable to this surface setting produced for automatically adding a cover, but the star of the octagon of enclosing cover 26 and enclosing cover 100 is the most unusual.These shapes additionally provide user-friendly shape, remove inner cap 24 for manually grasping from bottleneck, and for inner cap 24 being applied again or being assembled into bottleneck again.The typical case of setting or the approach of standard for outer surface are to use hexagonal design.

The hollow that each rib 102 is respectively provided with in its lateral sectors internal 114, and there is butt wedge shape (see Figure 23 and 27).The upper surface 116 of each rib 102 closes, and the axial lower surface of each rib 102 opens (see Figure 27).The bottom surface 118 of enclosing cover 100 is substantially planar.Each rib 102 is generally directed at each torque lug 88 so that the rotation can concentrated at rib 102 or torque force can orient with each torque lug 88 and be directed at and transmit for more effective power.

Understanding internal feature and the structure detail of enclosing cover 100 for convenience, the many same reference numerals that can be used for enclosing cover 26 are also used for enclosing cover 100.As explained, enclosing cover 26 is substantially the same about its joint corresponding with inner cap 24 with the inner surface of enclosing cover 100 or acts on identical.

Referring again to Fig. 5-8, the assembling combination of inner cap 24 and enclosing cover 26 illustrates with some different cross section views.Enclosing cover (enclosing cover 26 or enclosing cover 100) slide downward on inner cap 24, and set up the sub-component that is clasped as shown in figures 5-8.Enclosing cover can original adoption about any circumferential position of inner cap 24 because enclosing cover (26 or 100) is not controlled about the position of inner cap.This means that each lug 80 (total of six) can use any circumferential position of the various sections 54,56 and 58 about inclined surface part 52.No matter any relative position is the enclosing cover 26 or 100 starting position about inner cap, due to equidistant from distance and same geometry, therefore each lug replicates six times the most in the same manner about the location of various sections, wherein each lug 80 is on the chamfered portion 52 of its correspondence.

When enclosing cover 26 or 100 rotates for when starting the program being screwed on bottleneck 28 by inner cap 24 along CW direction about inner cap 24, there is the various torques of needs assessment, friction and against factor.When starting the initial snap assembled of two lids, it is assumed that torque lug 88 do not engages spoke 66, it is allowed to enclosing cover is at least started to edge and rotate about the CW direction of inner cap.No matter enclosing cover 26 or 100 is about the beginning position of rotation of inner cap 24, and CW rotates and makes each lug 80 move along the direction of the inclined-plane section 56 of inclined surface part 52.When the inclined-plane section 56 of its correspondence of edge contact of each lug 80, two lids can be as a finite element rotation.Before contact point between lug 80 and inclined-plane section 56, can there are some limited or slightly rotations as individual unit in this double-canopy sub-component.This depends on any degree being threadedly engaged between friction level or degree, and inner cap 24 and bottleneck 28 between two lids or scope.Until some loads impose on inner cap 24 by bottleneck 28, inner cap and enclosing cover as a unit rotation more likely.

When tightening torque and increasing, there is the resistance of the increase being placed on inner cap 24, and result exists the bigger probability that enclosing cover 26 or 100 rotates about inner cap 24.When it happens, each lug 80 all start direction axially downward slide through its correspondence inclined-plane section 56 and along its against.This cam action causes the CW of enclosing cover 26 or 100 to rotate, and pulls enclosing cover with direction axially downward.This cam action contributes to automatic capping device or container being manually closed again by user.When enclosing cover be pulled to downwards (on) torque lug 88 is against spoke 66 (i.e., lower torque lug) position time, by lug 80 and the action of inclined-plane section 56, this joint terminates, and being fully engaged between lug 88 and spoke 66 is realized by further machine or manual movement.Before these two groups of torque lugs against being the mode being firmly threadedly engaged that is rotatably driven on bottleneck 28 by inner cap 24 of enclosing cover 26 or 100.Torque lug 88 has unique geometry in one embodiment, wherein along the axial height of leading edge in CW direction or thickness more than the axial height of (relatively) leading edge along CCW direction or thickness.The effect of this difference of height or thickness is when being screwed on bottleneck 28 by inner cap vertically, removes contrary with screw thread, needs enclosing cover 26 or 100 to advance axially downwards about the less of inner cap 24.Inner cap removes from the screw thread of bottleneck needs enclosing cover larger axis in a downwardly direction to traveling, and to a certain extent, bigger power is applied to outer covering, in order to realize the required joint between two groups of torque lugs.In an alternative embodiment, the axial width of each torque lug 88 is basically identical.

Although accompanying drawing and described above shown in and describe the present invention; but it is recognized as being exemplary and nonrestrictive in nature; it will be appreciated that; it has been shown and described that only preferred embodiment, and it is included into all changes in the spirit of the present invention that following claims limits, equivalent and remodeling expectation and is protected.All publication, the patents and patent applications quoted in this specification are incorporated herein by reference, and point out especially and independently such as each individually disclosed case, patent or patent application and are integrally incorporated herein with it by quoting and explain.

Claims (26)

1. combining the closure assemblies that container uses, described closure assemblies includes:

First lid, it is constructed and arranged to for being assembled to described container, and described first lid includes the sidewall with inclined-plane section；

Second covers, and it is received by described first lid, and described second lid includes lug, and it is constructed and arranged to engage described inclined-plane section；And

The rotation of wherein said second lid makes described lug move to engage to described inclined-plane section, and the continuation of wherein said second lid rotates and pulls described second to cover axially downward.

Closure assemblies the most according to claim 1, it is characterised in that described first lid also includes arranging against lug, and described second covers the multiple torque lugs also including cooperation, it is constructed and arranged to for described first lid is driven into described container.

Closure assemblies the most according to claim 1, it is characterised in that described inclined-plane section is in multiple inclined-planes section.

Closure assemblies the most according to claim 3, it is characterised in that described lug is one in multiple lug.

Closure assemblies the most according to claim 1, it is characterized in that, described first lid includes sidewall and against structure, described radially inwardly extending from described sidewall against structure, contributes to limiting the test deformation of falling of described container with described container for cooperating.

Closure assemblies the most according to claim 1, it is characterised in that described first lid also includes the first spring-biased member, and described second lid also includes the spring-biased member of cooperation, it is constructed and arranged to engage described first spring-biased member.

7. combining the closure assemblies that container uses, described closure assemblies includes:

First covers, and it is constructed and arranged to be assembled to described container, and described first lid includes the first device for being driven on described container；

Second lid, it includes for covering, by described first, the second device being driven on described container；And

One in wherein said first device and described second device includes torque lug, it has the leading edge clockwise with the first axial width size and the trailing edge clockwise with the second axial width size, and wherein said first axial width is more than described second axial width size.

Closure assemblies the most according to claim 7, it is characterised in that described first device includes against lug.

Closure assemblies the most according to claim 8, it is characterised in that described against lug be multiple in lug one.

Closure assemblies the most according to claim 7, it is characterised in that described torque lug is in multiple torque lug.

11. closure assemblies according to claim 10, it is characterised in that the number of described torque lug is equal to the described number against lug.

12. closure assemblies according to claim 7, it is characterised in that described first lid includes the sidewall with chamfered portion.

13. closure assemblies according to claim 12, it is characterised in that described second lid includes lug, and it is constructed and arranged to engage described inclined-plane section.

14. closure assemblies according to claim 13, it is characterised in that described inclined-plane section is in multiple inclined-planes section.

15. closure assemblies according to claim 13, it is characterised in that described lug is one in multiple lug.

16. closure assemblies according to claim 7, it is characterized in that, described first lid includes sidewall and against structure, described radially inwardly extending from described sidewall against structure, contributes to limiting the test deformation of falling of described container with described container for cooperating.

17. closure assemblies according to claim 7, it is characterised in that described first lid includes the first spring-biased member, and described second lid includes the spring-biased member of cooperation, it is constructed and arranged to engage described first spring-biased member.

18. 1 kinds of container assemblies, including:

Having the container of the bottleneck of threaded section and bottleneck portion, described bottleneck limits vessel port；And

Guan Bi lid, it is constructed and arranged to for engaging with described bottleneck thread, and be used for closing described vessel port, described Guan Bi lid include sidewall and from described sidewall radially inwardly extending against projection, wherein in the case of described Guan Bi lid is assembled to described bottleneck, described it is positioned near described bottleneck portion against projection.

19. closure assemblies according to claim 18, it is characterized in that, also include the enclosing cover received by described Guan Bi lid, and wherein said Guan Bi lid includes arranging against lug, and described enclosing cover includes multiple torque lugs of cooperation, it is constructed and arranged to be driven on described container described Guan Bi lid.

20. container assemblies according to claim 18, it is characterised in that described Guan Bi lid includes the sidewall with inclined-plane section.

21. container assemblies according to claim 20, it is characterised in that described enclosing cover includes lug, it is constructed and arranged to engage described inclined-plane section.

22. container assemblies according to claim 21, it is characterised in that described inclined-plane section is in multiple inclined-planes section.

23. container assemblies according to claim 22, it is characterised in that described lug is one in multiple lug.

24. closure assemblies according to claim 18, it is characterised in that described Guan Bi lid also includes the first spring-biased member, and described enclosing cover also includes the spring-biased member of cooperation, it is constructed and arranged to engage described first spring-biased member.

25. closure assemblies according to claim 18, it is characterised in that described is annular against projection, and has internal diameter size, and wherein said threaded portion has main thread diameter, and it is more than described internal diameter size.

26. 1 kinds combine the closure assemblies that container uses, and described closure assemblies includes:

First covers, and it is constructed and arranged to be assembled to described container, and described first lid includes the first device for being driven on described container；

Second lid, it includes for covering, by described first, the second device being driven on described container；And

One in wherein said first device and described second device includes torque lug, it has the leading edge clockwise with the first axial width size and the trailing edge clockwise with the second axial width size, and wherein said first axial width is substantially equal to described second axial width.