CN1163595A

CN1163595A - Plastic colsure of edge rolled bottle

Info

Publication number: CN1163595A
Application number: CN 95195540
Authority: CN
Inventors: 维尔纳·扎豪
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-10-06
Filing date: 1995-10-05
Publication date: 1997-10-29
Anticipated expiration: 2015-10-05
Also published as: CN1055664C

Abstract

The invention provides a plastic seal member for curling bottle which has a sealing cover (3) with a circular plane cover plate (2), an outer ring (5; 5') for encasing bottleneck at sealing position arranged at lower side (4) of the sealing cover (3), wherein two rings (5, 6), which are substantially coaxial arranged about central axes (7), are integrated molded on the cover plate (2). Inner sides (10, 10') of the inner sealing ring (6) opposite to sealing face (9, 9') has plural stiffeners which is designed as molded members (12; 12'; 12''; 12'''; 12'''') for at least partly providing elastic supported conjunction for the inner sealing ring as the inner sealing ring (6) is at sealing position.

Description

The plastics closure of crimping bottle

The present invention relates to a kind of plastics closure by claim 1 crimping bottle as described in the preamble (Wulstrandflasche).

The plastics closure of known this form (DE-OS 2104543) has a head part and one and abuts in the seal ring at the inner opening edge of crimping bottle as sealing member, and sealing ring itself partly is made up of a sealing bead and an annular flatung coaxial with it.This plastics closure is owing to its production erected cost height thereby cost height, and its use occasion is subjected to certain limitation thus.

The object of the invention is, a kind of plastics closure that is used for the crimping bottle is provided, and its cost of production is low and enough leak tightness all arranged when the bottleneck that is used to the different-diameter tolerance.

Feature by claim 1 can realize above-mentioned purpose basically.Dependent claims 2 to 24 has provided further feature and favourable structure.

The seal closure spare zone that is used for plastics closure week in it abuts in bottleneck of a crimping bottle by the present invention is provided with a plurality of strengthening ribs, described strengthening rib overlaps mutually facing to inboard of sealing surface and has a structure parallel with the axis at it with inner seal ring from behind, inner seal ring existing one enough stability has flexibility again thus, and can obtain a tolerance compensating between sealing surface and bottleneck district.

Use this strengthening rib, whole thin-wall seal ring bears the distortion of the seal closure spare that occurs owing to force fit especially like this when filling in bottleneck, but makes in whole week safe enough ground guarantee that sealing property and while can be avoided producing and cover the imperfect distortion of part.

The structure of strengthening rib can obtain a thin-walled inner seal ring, even also can adapt to the bottleneck of different tolerances and/or profile thus flexibly when using a hard plastic material.Structure inner seal ring by the sealing surface projection has a transition region of shrinking towards cover plate, can avoid material stress to keep a profile that vision is satisfied to the transmission of cover plate and from the plate upside like this.

For example by injection moulding single piece production closed cap the time, the structure that strengthening rib is parallel to the axis can realize a simple depanning.Can imagine that equally also strengthening rib is arranged on one and specific is set as arch with respect to the position of inclined or with strengthening rib, the technical limitation under this moment every kind of situation is whether product can take out from injection mold.

Below will describe in detail details of the present invention by the accompanying drawing of having described a plurality of plastic closure part embodiment by structure of the present invention, in the accompanying drawing:

Fig. 1 is the following view of plastics closure that has the crimping bottle (Wulstrandflasche) of strengthening rib in the inner seal ring district,

Fig. 2 is the side view in partial cross-section by Fig. 1 plastics closure;

Fig. 3～5th is similar to the detail view of Fig. 1;

Fig. 6 is the inner seal ring with difformity strengthening rib;

Fig. 7 is the lateral plan that is similar to Fig. 2, is second embodiment of the plastics closure of a threaded section;

Fig. 8 is the following view of the 3rd embodiment that is similar to the plastics closure of Fig. 1, and it is with a predetermined breakdown zone of being located at the inner seal ring district;

Fig. 9 is Fig. 8 plastics closure sectional side view;

Figure 10 to 17 is plastics closure cutaway views in the amplification of predetermined breakdown zone;

Figure 18 is the following view of plastics closure the 4th embodiment, it with a threaded portion that is similar to Fig. 7 and

Figure 19 is the cross-sectional side elevational view by Figure 18 plastics closure;

Fig. 1 is the whole plastics closure of representing with label 1, and it is used in particular for usually by a crown plug osed top crimping bottle (not shown).Plastics closure has the housing 3 (Fig. 2) of a band circular flat shape cover plate 2, has an outer shroud 5 that encases crimping bottle bottleneck during in closure and one at cover plate 2 downsides 4 and lies at least partially in the inner seal ring 6 that is posted by a sealing band of Zhou Zuowei in bottle opening.Ring 5 and 6 is provided with one heart and should one be made on the cover plate 2 with respect to line of centers 7.

The strengthening rib 11 that has a plurality of axially parallels by inner seal ring 6 in the plastics closure 1 of the present invention in its inboard 10 facing to sealing surface 9.Strengthening rib can be moulded parts 12 under suitable situation, and its and dorsal part of inner seal ring 6 and downside 4 one of cover plate 2 links to each other.Detent position and bottleneck supporting ingear inner seal ring 6 at seal closure have a plurality of drip moldings in strengthening rib 11, thus the influence that can produce part or pointwise to the rigidity and the elasticity of material.

Plastics closure 1 by Fig. 2 biopsy cavity marker devices shows, strengthening rib 11 has one at the forming height of axially roughly growing corresponding to inner seal ring 6 13, have a supporting area 14 that dwindles towards guide end at this strengthening rib 11 at its axial free end, when closure member 1 is pressed into bottleneck, can make inner seal ring 6 carry out centering easily thus.

View shows the structure of strengthening rib 11 on the whole under Fig. 1, and wherein strengthening rib has a shared connecting portion 16 respectively in couples at the free end of its subtend line of centers 7.Between the inboard 10 of inner seal ring 6 and strengthening rib 11, form an elastic cavity 17 and strengthening rib 11 circumferential formation star flatung shape thus respectively, make the distortion that will when inner seal ring 6 is pressed into bottleneck into, produce be evenly distributed on the whole sealing surface 9 and obtain a bottle failure-free seal closure thus at inner seal ring 6.Described star flatung district had not only linked to each other with inner seal ring 6 but also with cover plate 2 one.

Can find out to the narration of inner seal ring 6 and plastics closure additional embodiments that from Fig. 3 to 6 strengthening rib 11 has similar profile and all forms the roughly outstanding supporting leg 19 (Fig. 1) of V-arrangement from the 18s, land on the inboard 10 of inner seal ring 6.Strengthening rib 11 is the supporting leg 19 ' that links to each other of crooked transition mutually and links to each other by a shared carrier ring 20 towards line of centers 7 outstanding buckled zones at it in the scheme of another variation of Fig. 4 in Fig. 3 embodiment.Shaping supporting leg 19 in the scheme of Fig. 5 " have a radially connecting strap 21 and in the embodiment of Fig. 6, then be the further expanding of Fig. 1 embodiment, wherein on V-arrangement supporting leg 19, be provided with a carrier ring 20.

Show the profile of inner seal ring 6 by the cutaway view of the plastics closure 1 of Fig. 2, its cross-sectional plane be the sealing surface 9 of lobed shape and on the other hand its 10 parts, inboard that link to each other with strengthening rib 11 be a columniform circumferential surface 24.Have a bevelled transition region 25 and the sealing surface 9 heaved has a constant radius R in the upper zone of this cylindricality circumferential surface 24 in a suitable embodiment towards line of centers 7, it extends into the downside 4 of cover plate 2 in its transition region 25.

For inner seal ring 6 is compressed into bottleneck reliably, perhaps outer shroud 5 is encased the bottle crimping, the sealing surface of heaving 9 has one with respect to the highest (far) of line of centers 7 point S, and this point is positioned at one and encases 27 tops, clamping plane that the bead portion 26 of crimping bottle is limited by one on outer shroud 5 and at detent position.

In one second embodiment of the plastics closure 1 ' of pressing Fig. 7, inner seal ring 6 ' cross-sectional plane is roughly trapezoidal, and wherein it has

parallel anchor ring

28,29 to cover plate 2 bevelled transition regions 25 '.Sealing surface 9 ' extends in parallel the part at least with the inboard 10 ' that links to each other with strengthening rib 11 among this embodiment.Inner seal ring 6 ' is located on the cover plate 2 of the outer shroud 5 ' with a threaded section 30, and (cover plate) plastics closure 1 ' has formed the threaded closure of cooresponding bottleneck (not shown) thus.

In above-mentioned plastics closure 1, the flexibility and the deformability of inner seal ring 6 can structurally realize with little expense like this in 1 ', be that the land 18 that strengthening rib 11 extends on its inboard 10 at inner seal ring 6 has wall thickness H, it is axially local at least less than the wall thickness H between sealing surface 9 and inboard 10 ' (Fig. 1,2), can avoid thus in production plastics closure 1, produce distortion in the time of 1 '.

Fig. 8 and 18 is respectively the following view of the embodiment of two other plastics closure 101,101 ', and they have a recess 141 that forms predetermined breakdown zone 140 respectively in its seal bootr 103 zones.The tangent plane details drawing of Fig. 9 or 19 cutaway view and Figure 10 to 17 has illustrated the predetermined breakdown zone 140 with the recess 141,141 ' of different shape of cross sections, forms the plate 142 of the material thickness M that a band reduces this moment in each case at its bottom section.To the cross-sectional profile of this recess 141,141 ' except can be rectangle (Figure 10 to 11), arch (Figure 12 and 13), triangle (Figure 14 and 15) is outer can be changed arbitrarily, shown in Figure 16 and 17.Double square recess by Figure 17 has been opened an other otch 143 on plate 142, the thickness of predetermined breakdown zone further dwindles thus.

Equally also can imagine, recess is an annular groove (not shown) that is formed in the seal bootr 103, and it is similar to recess 141 and is located on seal bootr 103 downsides 104 and/or is similar to recess 141 ' and be located at seal bootr 103 upsides.

Can find out in Fig. 9 or 19 cutaway views that recess 141 is arranged in the flatung shape strengthening rib between two strengthening ribs under suitable situation.Equally also can imagine, recess 141 is located on the downside 104 of the seal bootr 101,101 ' in inner seal ring 6 one interior zones 144, make the manufacturing of this predetermined breakdown zone 140 especially simply and easily control.

Use above-mentioned predetermined breakdown zone 140, this has one when it is integrally manufactured by the plastics closure that crown plug principle can be inserted on the crimping bottle especially, the material shape that can form together with less cost during for example by injection moulding.Using this plastics closure 101, in the time of 101 ', for example be used to on the bottle of the content that contains carbonic acid the time, predetermined breakdown zone 140 is as a safety valve, and bottle has the fracture defencive function thus.

Thus, forming plastics closure 101 by the highstrenghtpiston especially, in the time of 101 ', even because its bonding pad can for example also keep leak free supporting engage position by being fixed in the star flatung shape supporting leg on the inner seal ring 6 and crimping portion 26 under the high pressure of 25 crust, even when the bottle that uses easily fried material such as glass to make, also can reduce danger thus owing to the existence of predetermined breakdown zone 140.Can be to this by the corresponding size of the predetermined breakdown zone 140 of design, plate 142 district material thicknesses for example form the structure of the plastics closure 101,101 ' that and the interior pressure of permission that has nothing in common with each other be complementary.

Above-mentioned plastics closure 1,1 ' in suitable embodiment; 101,101 ' can be by polypropylene (PP), or polyethylene (PE HDPE) makes, wherein closure member at least ambient temperature during at 10 ℃ to 60 ℃ and interior be depressed into 25 crust and on the time have a reliable sealing performance at sealing station.

In addition, in Fig. 9 or 19 cutaway views, also can find out, inner seal ring 106 has the shaping length 113 of moving behind the retained part with respect to the clamping plane 127 (Fig. 9) of crimping portion 126 or threaded portion 130 (Figure 19), thus except saving in material when producing closure member, desired power in the time of also can optimizing especially in plastics closure being pressed into crimping bottle (not shown).When being pressed into (Fig. 9, arrow 145), the crimping bottle is caught by crimping portion 126 and is entered connection location at subordinate phase inner seal ring 6 subsequently at first closing stage.Have only less masterpiece to be used on the plastic closure part generally to this, thereby can not cause damage and obtain the failure-free position that is tightly connected thus.

Plastics closure 1 in suitable embodiment, 101 have one in its outer shroud 5 districts works as plastics closure 1,101 when bottle is taken off deformable edge shape ring 146, just can realize opening indication or plastics closure 1,101 an int indication of a safe enough thus with little cost by its permanent distortion.

Claims

1. the plastics closure of crimping bottle has a seal bootr (3) of being with circular flat cover plate (2), is provided with an outer shroud (5 that encases bottleneck at detent position at its downside (4); 5 ') and a local at least inner seal ring (6) that abuts in Zhou Zuowei seal closure in bottle opening, wherein two roughly with respect to the ring (5 of the coaxial setting of central axis (7), 6) integrally formed on cover plate (2), it is characterized in that: inner seal ring (6) faces toward sealing surface (9 at it; 9 ') inboard (10,10 ') have a plurality of strengthening ribs (11) that are roughly parallel to axis (7), and described strengthening rib is designed to respectively when inner seal ring (6) local at least drip molding (12 that the elastic support combination is provided for inner seal ring when being positioned at detent position; 12 '; 12 "; 12 " '; 12 " ").

2. by the described plastics closure of claim 1, it is characterized in that downside (4) one of the inboard (10,10 ') of strengthening rib (11) and inner seal ring (6,6 ') and/or cover plate (2) links to each other.

3. by claim 1 or 2 described plastics closure, it is characterized in that strengthening rib (11) has one axially roughly corresponding to the moulding length (13) of inner seal ring (6,6 ') length.

4. by one of claim 1 to 3 described plastics closure, it is characterized in that strengthening rib (11) has one towards the most advanced and sophisticated supporting area (14) that shrinks of a guiding at its axial free end.

5. by one of claim 1 to 4 described plastics closure, it is characterized in that at least two strengthening ribs (11) have a shared bonding pad (16) at the free end of its subtend central axis (7) in each case.

6. by one of claim 1 to 5 described plastics closure, it is characterized in that, between inner seal ring inboard of (6,6 ') (10,10 ') and strengthening rib (11), form an elastic cavity (17 separately at least; 17 ').

7. by one of claim 1 to 6 described plastics closure, it is characterized in that strengthening rib (11) is disposed at inner seal ring (6 with a star flatung shape; 6 ') on.

8. by the described plastics closure of claim 7, it is characterized in that described star flatung shape strengthening rib had cut shape both and inner seal ring (6; 6 ') the continuous back-shaped shape in footpath that links to each other with cover plate (2) one again and form a closure of one.

9. by the described plastics closure of one of claim 1 to 8, it is characterized in that strengthening rib (11) is from inner seal ring (6; 6 ') setting out in the land (18) on the inboard (10,10 '), roughly forms the shaping supporting leg (19) of V-arrangement projection.

10. by one of claim 1 to 9 described plastics closure, it is characterized in that strengthening rib (11) is a curvilinear figure mutual transition bonded assembly shaping supporting leg (19 ').

11., it is characterized in that strengthening rib (11) (7) outstanding end passes through a shared carrier ring (20 at it towards the axis by one of claim 1 to 10 described plastics closure; 20 ') link to each other.

12., it is characterized in that inner seal ring (6 by one of claim 1 to 11 described plastics closure; 6 ') cross-sectional plane has a sealing surface of heaving on the one hand, on the other hand, the inboard (10) that links to each other with strengthening rib (11) is a cylindrical surface (24), and it has one and tilts and towards the transition region (25 of the downside (4) of cover plate (2) towards central axis (7); 25 ').

13., it is characterized in that the sealing surface of heaving (9) has a constant radius (R) in cross-sectional plane by the described plastics closure of claim 12.

14. by claim 12 or 13 described plastics closure, it is characterized in that, the sealing surface of heaving (9) has a vertex with respect to central axis (7) (S), and it is arranged on one and goes up and encase the top, clamping plane (27) that the crimping portion (26) of crimping bottle is limited in make position at outer shroud (5) by one.

15., it is characterized in that inner seal ring (6 by one of claim 1 to 11 described plastics closure; 6 ') cross-sectional plane is that a roughly trapezoidal profile and its have parallel anchor ring (28,29) towards cover plate (2) bevelled transition regions (25 ').

16., it is characterized in that sealing surface (9 ') extends in parallel the part at least with the inboard (10 ') that links to each other with strengthening rib (11) by the described plastics closure of claim 15.

17., it is characterized in that strengthening rib (11) has a wall thickness (H) in the inboard land (18) that is located at separately by the described plastics closure of claim 1 to 16, the local at least ratio of this wall thickness is at sealing surface (9; 9 ') and inboard (10; Wall thickness 10 ') (H ') little.

18., it is characterized in that described inner seal ring (6 ') is located on the cover plate (2) of an outer shroud (5 ') with first threaded portion (30) by each described plastics closure of claim 1 to 17.

19., it is characterized in that described seal bootr (101,101 ') has at least one shaping district as predetermined breakdown zone (140) by one of claim 1 to 18 described plastics closure.

20., it is characterized in that predetermined breakdown zone (140) is outer and/or interior notches (141,141 ') forms and this district has the plate (142) that a thickness (M) reduces at bottom section by one by the described plastics closure of claim 19.

21., it is characterized in that described recess (141) is a circular groove by the described plastics closure of claim 19.

22., it is characterized in that described recess (141) is located at closed cap (103) position between two star flatung shape strengthening ribs (11) by one of claim 19 to 21 described plastics closure.

23., it is characterized in that inner seal ring (6) has the shaping length (113) facing to the local at least withdrawal of piece (126) or threaded portion (130) of curling by one of claim 1 to 22 described plastics closure.

24., it is characterized in that described outer shroud (5) has one and taking off plastics closure (1 by one of claim 1 to 23 described plastics closure; 101) show and the molded arris of permanent deformation as opening afterwards.