WO2002098743A2

WO2002098743A2 - Single-piece closure produced according to a plastic injection method

Info

Publication number: WO2002098743A2
Application number: PCT/EP2002/006261
Authority: WO
Inventors: Udo Suffa
Original assignee: Alpla-Werke Alwin Lehner Gmbh & Co. Kg
Priority date: 2001-06-07
Filing date: 2002-06-07
Publication date: 2002-12-12
Also published as: DE10127710A1; WO2002098743A3; EP1392574A2

Abstract

The invention relates to a single-piece closure (V) produced according to a plastic injection method. Said closure comprises a closing cover (6) and a wall (8) extending from the edge (7) of the cover (6) downwards. A tear-off lug (13) is formed in the wall (8) of the closure by two vertical thin places (14) which are formed at a peripheral distance in the wall (8) of the closure and which lead to a hinge area (15) formed on the upper side therebetween. In order to form the tear-off lug which can continue to fulfil the function of a grip element, whereby the first utilization thereof can be indicated in a more effective manner, the geometry of the bead (17) is identical, having the same depth over the entire internal wall area, including the inner surface of the tear-off lug (13), in a radially inner direction; the beading (17) is associated with the hinge area (15), and the thin places (14) are formed exclusively between the peripheral area of the wall (8) of the closure which remains once the tear-off lug has been opened and the hinge area (15). Alternately, when seen from the tear-off lug (13), a deflecting wall (24) which protrudes in a radially outward manner, extending in a vertical direction is formed beyond a vertical thin point (14), said wall extending into a covering (U), as far as the tear-off lug (13) .

Description

00001 Plastic injection molded

00002 one-piece closure 00003

00004 The invention relates to a plastic

00005 injection-molded closure,

00006 with a blanket and one from the edge of the

00007 closing cover downward extending closing wall

00008 fertilizer, with a tear tab in the closure wall

00009 is formed by two circumferentially spaced

00010 end wall formed, vertical thin spots, the

00011 on the top side in a hinge cover formed in between

00012 rich mouth, further on an inner surface in

00013 circumferential direction of the closure wall

00014 bead is formed, which is interrupted

00015 through the thin spots in the remaining area of the

00016 closure wall continues. 00017

A closure of this type is through CH-PS 417 378

00019 known. There is a corresponding fla-

00020 under-neck bulge of the closure

00021 outside the tear tab outline. 00022

00023 From CH-PS 553 696 there is the proposal that

00024 pull tab with up to the lower shoulder of the bead

00025 reaching vertical thin spots. 00026

00027 Both predecessors have one thing in common, the first

00028 need to be displayed and the closed position of the

00029 ses to bring back, this in the sense of

00030 function of a snap cap. 00031

The object of the invention is to open the pull tab

00033 retention of the function as a handle handle so

00034 that the first use is even more effective

00035 is settled. 00036 This task is first and foremost at

A closure with the features of claim 1

00038 solved, it being based on the fact that the bead

00039 over the entire inner wall area including the

00040 inner surface of the pull tab geometrically the same

00041 of the same depth is formed radially inward that

00042 the bead is assigned to the hinge area and that

00043 the thin spots only between after opening the opening

00044 see remaining peripheral area of the closure wall

00045 and the hinge area are formed. 00046

00047 As a result of such a configuration, a closure is

00048 th use and safety value achieved. The bead

00049 stands as a stable anchorage hoop in relation to the

00050 bottle neck bead available. The assignment leaves

Undertake using the bouncing. It

00052 only comes to a moderate degree without frost break

00053 short-term expansion of the given by the bead

00054 constriction. The ring elongation is good on the whole

00055 scope distributed. The thin spots themselves are of a high level

00056 elasticity and remain unaffected because the

00057 load - as indicated - in the circumferential direction, that is

00058 acts across the trench. The continuously

00059 before the depth of the bead creates the same conditions

00060 of said bounce assignment. The bead does not lie

00061 identical to the hinge area, but in the hinge

00062 kidney area, i.e. distant. Is the shutter wall

00063 fertilizer after opening the pull tab with a relaxing

00064 acting acting, so-called breach is the

00065 re-anchored the fastener, the

00066 means the closure can be, for example, from

00067 bottleneck, albeit with a strong will, is smoother

Solve 00068 and assign it again. However, the

00069 powerful anchoring of the reusable origi-

00070 quality cap, as achieved by bouncing, 00071 at least with regard to the tear-open tab

00072 is enough. Rather, the pull tab gapes compared to that

00073 corresponding bottle neck bulge. The original

00074 before, hard, captivating pretension is

00075 zen of the lock no longer accessible by hand.

00076 The status of the first use becomes permanent

00077 effectively signaled. The invention brings further

00078 in suggestion that the bead to undercut the correct

00079 sponding bottle neck bead is formed and

00080 that the dimensioning of the bead made so

00081 is that in the closed state there is an elastic

00082 deformation of the bead results. The art used

00083 fabric material can be fine tuned to this. Concrete

00084 is the elastic deformation of the bead in radial

00085 and / or axial direction with respect to a vertical

Given the central axis of the closure. The indicated above

00087 tete effect, the widening of the ripe, also takes place

00088 instead of how the evasive deformation in the axial direction

00089 tung. To make it easier to start with like one

00090 wall bracket acting pull tab roots

00091 this outside a grip projection. He is carrying

00092 ge the occurring polydirectionality of wall

00093 cut to a welcome, effective within limits

00094 stiffening of the lump-like pull tab.

00095 In addition, it proves advantageous that

00096 the root area of the grip projection in the circumferential direction

00097 tion of the closure wall, projected onto a through

00098 the cutting plane going the vertical center axis, a

00099 has an open arch shape downwards. Physically leads

00100 this to a shell handle structure. Here is further

00101 the zenith of the arch shape close to the hinge axis

00102 forms. This can go so far that the zenith

00103 coverage area runs to the bead. The right and

00104 left-sided, sloping foothills of the root area

00105 are increasingly moving away from the level-congruent 00106 Zone towards the zenith. It has proceeded so that the

00107 grip projection curved downwards in the radial direction

00108 runs. 00109

00110 The invention then relates to a plastic injection

00111 process manufactured, one-piece closure, with

00112 a blanket and one that extends from the edge of the

00113 closing cover downwardly extending closure wall,

00114 with a tear-open tab in the closure wall

00115 is formed by two circumferentially spaced

00116 vertical thin spots formed on the flow wall

00117 on the top side in a hinge cover formed in between

00118 richly flow and strikes in advantageous further training

00119 before that, seen from the pull tab, beyond

00120 a vertical thin spot one in vertical

00121 direction-extending, outwardly projecting deflection wall

00122 fertilizer is formed, which extends to an overlap

00123 the tear tab extends. Here is a permanent one

00124 The tear-open tab protrudes after first use

00125 outside locking means secured. Nevertheless leaves

00126 grab this pull tab comfortably and so to

00127 lifting leg or - pull the entire lid, the pot

00128 shaped closure, therefore, from the bottle neck.

00129 With regard to the inherent stability and the striking

00130 end signal effect of this tear tab proves it

00131 turns out to be advantageous in that it acts as a lead

00132 is formed. Such a bay window can be booked out

00133 tends to shape such a free space that he

00134 function of the handle projection explained above

00135 men can. Finally, it is suggested that

00136 assigned to a side wall of the protrusion bay

00137 another side of the thin section, the deflection wall

00138 runs, with a radially inward projection

00139 part of the deflection wall the side wall of the front

00140 jump detector covered. This leads to an irreversible 00141 blen unfold the protrusion bay. Since the inclined 00142 course of the deflection wall can be selected, the 00143 will fold out to a controllable size. Such Rastmit00144 tel can also be assigned to both side walls. 00145 00146 The subject matter of the invention is explained in more detail below with reference to 00147 of two illustrated exemplary embodiments. It shows: 00149 00150 Fig. 1 the closure according to the invention with originali00151 security device according to the first embodiment example, in the basic position, 00153 00154 Fig. 2 the same after canceled, ie broken 00155 ner originality, showing a not reversible 00156 foldable or unfolded position 00157 of the tear-open tab, 00158 00159 Fig. 3 is a partial view of the closure, viewed from the inside 00160 against the tear-open tab, unbroken 00162 00163 Fig. 4 shows the closure according to the invention with originali00164 security device according to the second embodiment of the game, whereby the tear-open tab is realized as a box-shaped protrusion 00166 00167 00168 Fig. 5 the same with broken originality, 00169 00170 Fig. 6 is a view against a portion of the closure, clarifying an opening lock 00172 in the form of an outwardly projecting Auslenk00173 wall, again the situation with broken originality t again giving 00176 Fig. 7 is an interior view against a portion of the

00177 closure, illustrating the

00178 pull tabs in projection

00179 ner bouncy basic position, 00180

8 shows the section along line VIII-VIII in FIG. 7

00182 and 00183

00184 FIG. 9 shows an enlargement IX from FIG. 8. 00185

00186 The one-piece closure V shown is tight

00187 closing a container of the most varied

00188 assignable geometries. In the present example

00189 game is a bottle 1. Its bottle

00190 neck 2 can be a blow molding bottle, PET bottle or

00191 can also be a glass bottle. 00192

00193 The in the area of an opening 3 of the bottle neck 2nd

00194 lying section of the same is recognizable

00195 thick and on the outside rotationally symmetrical professional

00196 lated. A is located near the front edge of the bottle neck 2

00197 bottle neck bead 4. 00198

00199 At a vertical distance from this, more of the bottle 1

00200 hert, there is a final bead 5. Both beads

00201 can be interrupted in the circumferential

Pass through 00202 freely. 00203

00204 The cap-like closure V consists of tough elastic

00205 schematic plastic material. He is in plastic injection molding

00206 drive manufactured and essentially comprises one

00207 flat blanket 6. From the edge 7 one goes

00208 Bottle neck 2 anchoring comprehensive closure wall

00209 8 out. It is sloping and essentially

00210 cylindrical. 00211 The transition area between the flat cover 6

00212 and closure wall 7 is through the top

00213 of the sealing blanket 6, slightly protruding ring rib 9

00214 reinforced. The delimits a walled field for protected

00215 th depression and holder, for example of a label body

00216 pers. 00217

00218 A ring-

00219 wall-like sealing cone 10. It ends in one

00220 wreath of radially inward in her back

00221 slats 11. They favor the plug-in when

00222 bouncing, finally a cylindrical

00223 section tightly closing against the corresponding

00224 inner surface of the likewise cylindrical opening

00225 3 of the bottle neck 2 occurs. 00226

00227 The sealing cone 10 extends concentrically to the

00228 end wall 8, namely leaving an annular

00229 bens 12 into which the upper end of the bottle neck 2

00230 reaches into. 00231

00232 The closure V is an originality assurance OS

00233 assigned. This signals the first use of the vascular

00234 container permanent, effective and even irreversible

00235 at. 00236

00237 In addition, this means of tamper-evident

00238 tion OS contributed the function of a handle handle.

00239 Use this to lock V after first use

00240 always comfortably from its unlocked position

Pull off 00241. 00242

00243 The corresponding seal / handling agent is one

00244 tear-open flap 13. It is also molded, so 00245 integral part of the cap-like closure

00246 V. 00247

00248 The closure tear tab 13 is specifically in the

00249 closure wall 8 located, defined in width

00250 by two circumferentially spaced apart from the closure wall 8

00251 trained thin spots 14. The extend parallel

00252 lel vertical. The roughening of the thin spots 14

00253 mung is made on the inside of the closure wall 8

00254 men, so withdrawn from the normal viewing angle. 00255

00256 Approaching the blanket 6, the two thin

00257 place 14 on the top in a molded in between

00258 hinge area 15. This goes over a curved line,

00259 prefers quarter-circle curvature. 00260

00261 With the same wall thickness of the closure wall 8

00262 the hinge-forming clearance at 15 of less

00263 depth, so that a kind of film hinge 16 stable

00264 remains. 00265

00266 The film hinge 16 runs essentially in one

00267 horizontal, that is perpendicular to a central axis x-x

00268 of the closure V or bottle neck 2. Da

00269 es (16) moreover in the circular rounding of the

00270 lusswandung 8 is aligned, there is a

00271 resulting support for the fold-in position

00272 after breaking the tamper-evident device OS or

00273 Activate the handle handle. 00274

00275 The bondage of the bounced closure V over

00276 on the closure side engages the bottle neck 2

00277 core bead 17. It is located on the cylindrical

00278 see inner surface 13 'in the circumferential direction on the

00279 lungswand 8 formed. The bead 17 is inward 00280 aimed. It grips under the bottom flank of the bottle

00281 neck bead 4, namely after snap-like overflow

00282 fen the upper flank of the bottle neck bead 4. Die

00283 lower flank is significantly steeper to the vertical

00284 spective longitudinal center axis aligned x-x. 00285

00286 The bead 17 continues with interruption through the

00287 thin spots 14 over notch valleys in the remaining

00288 area of the closure wall 8. Here is the

00289 further training specifically so that the bead 17 over

00290 the entire interior wall area including the interior

00291 surface 13 'of the tear tab 13 geometrically the same

00292 of the same depth y is formed radially inwards.

00293 The bead 17 is, as already indicated above, the

00294 assigned hinge area 15, the thin points

00295 14 only between after opening the pull tab 13

00296 permanent peripheral region of the closure wall 8 and

00297 the hinge area 15 are formed. 00298

00299 The bead 17 which engages under the bottle neck bead 4

00300 dimensioned so that a

00301 elastic deformation of the bead 17 results. The embodied

00302 pert in a kind of bias, which over the

00303 bounce assignment is best achieved. The preload

00304 Effect, however, cannot be repeated by hand. In the

00305 mentioned bounce assignment takes place the external, beyond

00306 of the sealing cone 10 lying cover section

00307 18 an abutment on the corresponding end face

00308 19 of the bottle neck 2. The support is in the

00309 inner half of the width of the ring trench 12. In this respect

00310 remains a sufficient projecting component

00311 of the closing ceiling covering the ring trench 12

00312 section 18. This cantilevered area can be under

00313 slight downward bending of the

00314 Use free space. The restoring force of the light 00315 bent periphery of the cap thus causes the

00316 aspired resilient under-grip of the bead 17 to the correct

00317 sponding lower flank of the bottle neck bead 4

00318 out. 00319

00320 The elastic deformation of the bead 17 is so out

00321 in the radial direction and also in the axial direction

00322 with respect to the vertical center axis x-x of the closure

Given 00323 ses V. 00324

00325 The cut-off designated 5

00326 flow bead spatially below the bottle neck bead 4.

00327 The but still protruding radially outward

00328 luswulst 5 is blocking in front of the lower edge

00329 of the closure wall 8. In this respect, only one

00330 knife tip operated the tamper-evident seal SO

00331. However, in order to provide more convenient access or

00332 se to offer a more convenient handling, the

00333 pull tab 13 on the outside a grip projection 20.

00334 It is rooted in it. The root area bears the reference

00335 characters 21. How the same as the first embodiment

00336 of the drawing shown, the said

00337 root region 21 of the grip projection 20 in the circumferential direction

00338 tion of the closure wall 8, projected onto a through

00339 the vertical center axis x-x cutting plane,

00340 has an arc shape that is open at the bottom. It is a must

00341 shaped handle shaped. His gripping space 22 for insertion

00342 gene of the fingertips of the operating hand is recognizable

00343 freely accessible, since only radially outside the peripheral

00344 rie of the final bead 5 starting. 00345

00346 The arch shape mentioned sounds in the two

00347 ren end portions of the pull tab 13 is sufficient

00348 but in the middle area closer to the coulter

00349 kidney axis A, made by film hinge 16. The cut 00350 is practically according to Figure 1 by the zenith of the arc

00351 form guided. 00352

00353 The root area 21 lies in the zenith in an overlap

00354 area to the bead 17. So on both sides of the

00355 essentially constant cross section of the different

00356 flow wall 8 as it were stabilizing ribs, one

00357 provided by the handle projection 20 and on the other hand

00358 originating from the formation of the bead 17. 00359

00360 The grip projection 20 can be seen to run radially

00361 curved downwards. 00362

00363 The second shown in the drawing from Figure 4

00364 embodiment is basically the same structure.

00365 The reference numbers are used analogously, this to

00366 Part without repeated text. 00367

00368 With this closure, the bead 17 on the inner surface is

00369 before 13 'of the pull tab 13 is discontinued. He

00370 ends at the level of the thin points 14. Nevertheless, the

00371 desired maturing function to achieve the preload

Given 00372 voltage, namely in the tear tab 13th

00373 as a stretchable, clampable

00374 section within the closure wall 8

00375 sets, the material bridges here from the predetermined tear

00376 lines forming remaining wall thicknesses are provided.

00377 The relevant material bridges carry the reference

00378 characters 23. These can only be broken with will

00379 by reaching under and swinging the tear-open

00380 see 13. 00381

00382 The tear tab 13 has, in a horizontal transverse

00383 seen section plane, U-shaped cross section on with

00384 in the direction of radially inwardly diverging U-legs 00385 no a. The side walls 13 ''. The U-leg

00386 web is denoted by b. The chosen realiter

00387 pezike cross-sectional shape leads to a practical

00388 outwardly offset wall section with underside

00389 gripping access approximately in the sense of gripping space 22, which here

00390 has the same reference number. 00391

00392 Overall, the tear tab 13 is a

00393 designed dungeon. The projection corresponds to that

00394 three to five times the wall thickness of the closure

00395 wall 8. 00396

00397 Outside of the vertically extending

00398 U-legs a speak side walls 13 '' are

00399 deflection walls 24 like the blind flap

00400 sealing wall 8. The run, seen from the outside,

00401 converging, so they essentially extend

00402 parallel to the inwardly diverging U-legs a.

00403 The relatively narrow dividing line between the

00404 two wall sections 13 '' / 24 is designated by 25.

00405 When the material bridges 23 are torn, the material

00406 overcome binding anchor. Because the deflection wall

00407 24 into an overlap Ü of the tear tab 13

00408 stretches, there is a bound unfolded position

00409 of the tear tab 13, which is basically not reversible

00410 is the practical box-shaped element in the

00411 holds out. 00412

00413 The ends of the U-legs a that are now free

00414 gripped peripheral end face 26 is acute-angled

00415 sets to zero with the wedge pointing upwards

00416 in the jacket wall of the closure wall 8. By choice

00417 of the corresponding angle alpha lets the degree

00418 of the protruding pull-out pull tab 13 during

00419 len. Nevertheless, this also offers itself here for the 00420 removal of the cup-shaped or

00421 se cap-shaped closure V from the container

00422 meaning bottle 1. The angle alpha is between 20 °

00423 and 45 °, preferably 30 °. 00424

00425 The one given over the hinge-forming material bridge

00426 connection of the pull tab 13 is sufficiently stable

00427 designed. It sets from the transition area of the thinnest

00428 len 14 increasingly towards the hinge area 15. 00429

00430 In summary, it remains to be said that at least

00431 associated with at least one side wall 13 '' of the projection

00432 net on the other side of the thin section 14 the deflection

00433 wall 24 extends, with radial projection

00434 inside (see line z-z and radius line R) a partial

00435 the Auslenkwandung 24 the side wall 13 '' of

00436 overhang protrusion covered. 00437

00438 All disclosed features are invented for

00439 essential for the application. In the disclosure of the application

00440 hereby also the disclosure content of the associated /

00441 priority documents (copy of the pre-registration

00442 düng) fully included, also for the purpose

00443 features of these documents in claims of the present

00444 Registration to record.

Claims

00445 A n s p r ü c h e 00446

00447 1. Injection molded, one-piece

00448 ger lock (V), with a blanket (6) and

00449 one from the edge (7) of the blanket (6)

00450 bottom extending closure wall (8), in which

00451 closure wall (8) a tear-open tab (13)

00452 is formed by two circumferentially spaced

00453 wall (8) formed, vertical thin spots (14),

00454 the upper side into a coulter formed in between

00455 kidney area (15) open, further on an interior

00456 area in the circumferential direction of the closure wall

00457 extending bead (17) is formed, which is

00458 with interruption through the thin points (14) in the

00459 remaining area of the closure wall (8)

00460 sets, characterized in that the bead (17) over

00461 the entire interior wall area including the interior

00462 surface (13 ') of the tear tab (13) geometrically the same

00463 with the same depth (y) formed radially inwards

00464 is that the bead (17) the hinge area (15)

00465 and that the thin spots (14) are only between

00466 see after opening the tear tab (13) remaining

00467 peripheral region of the closure wall (8) and the coulter

00468 kidney area (15) are formed. 00469

00470 2. Closure according to claim 1 or in particular according thereto,

00471 characterized in that the bead (17) for lower

00472 handle of a corresponding bottle neck bead (4)

00473 and that the dimensioning of the bead

00474 stes (17) is made in such a way that

00475 there was an elastic deformation of the bead (17)

00476 there. 00477

00478 3. Closure according to one or more of the preceding

00479 the claims or in particular according thereto, characterized 00480 records that the elastic deformation of the bead

00481 (17) with respect to the radial and / or axial direction

00482 a vertical central axis (x-x) of the closure (V)

00483 is given. 00484

00485 4. Closure according to one or more of the preceding

00486 the claims or in particular according thereto, characterized

00487 records that on the tear tab (13) on the outside

00488 a handle projection (20) is rooted. 00489

00490 5. Closure according to one or more of the preceding

00491 the claims or in particular according thereto, characterized

00492 shows that the root area (21) of the handle

00493 jump (20) in the circumferential direction of the closure wall

00494 (8), projected onto a vertical center axis

00495 se (x-x) sectional plane, one open at the bottom

00496 has an arc shape. 00497

00498 6. Closure according to one or more of the preceding

00499 according to the claims or in particular according thereto,

00500 shows that the zenith of the arch shape is close to the

00501 kidney axis (A) is formed. 00502

00503 7. Closure according to one or more of the preceding

00504 the claims or in particular according thereto, characterized

00505 shows that the zenith in the overlap area to the

00506 bead (17) runs. 00507

00508 8. Closure according to one or more of the preceding

00509 according to the claims or in particular according thereto,

00510 records that the grip projection (20) in radial

00511 is curved downwards. 00512

00513 9. Injection molded, one-piece

00514 ger lock (V), with a blanket (6) and 00515 one from the edge (7) of the blanket (6)

00516 below extending closure wall (8), wherein in the

00517 closure wall (8) a tear-open tab (13)

00518 is formed by two circumferentially spaced

00519 wall (8) formed, vertical thin spots (14),

00520 which is formed on the upper side into a coulter formed between

00521 kidney area (15), characterized in that,

00522 seen from the tear tab (13), beyond one

00523 vertical thin spot (14) one in vertical

00524 direction extending, protruding radially outward

00525 Auslenkwandung (24) is formed, which extends into a

00526 overlap (Ü) extends to the tear tab (13). 00527

00528 10. Closure according to claim 9 or in particular there-

00529 after, characterized in that the tear tab

00530 (13) is designed as a protrusion. 00531

00532 11. Closure according to one or more of the preceding

00533 claims 9, 10 or in particular according thereto, thereby

00534 characterized in that a side wall (13 * ') of the front

00535 assigned jump jumpers, on the other side of the

00536 thin point (14) the deflection wall (24), wherein

00537 when projecting radially inward a partial area of the

00538 deflection wall (24) the side wall (13 '') of the front

00539 covered jump jump.