WO1997030905A1

WO1997030905A1 - Closure

Info

Publication number: WO1997030905A1
Application number: PCT/EP1997/000347
Authority: WO
Inventors: Eberhard KÖBKE
Original assignee: Weener Plastik Gmbh & Co. Kg
Priority date: 1996-02-21
Filing date: 1997-02-18
Publication date: 1997-08-28
Also published as: AU1790097A

Abstract

The invention relates to a closure (1) with a lower section (2) and an upper section in the form of a rotatable cap (3) and also with an essentially horizontally movable closure slide (5) fitted between the lower section (2) and the upper section (3) to close superimposed apertures (6, 7) in the lower section (2) and the upper section (3), where there is also a closure diaphragm (9) filling the lower aperture (7) in the lower section (2). In order to make the seal as reliable as possible, the invention proposes that, when mounted, before it is actuated, the closure diaphragm (9) be fitted with an upper cover (10) close to the closure slide (5).

Description

00001 closure 00002 00003 The invention relates to a closure with a closure part 00004 and a closure part designed in the form of a rotatable cap 00005, further with a 00008 closure slide and the closure part 00007 arranged essentially horizontally displaceable 00008 closure slide for closure of openings formed in the closure part and the upper part of the closure, over 10,00010 lying one above the other, in which case a closure membrane 00012 filling the opening is further arranged in the closure part. Such a closure has become known, for example, in early 00015 in 1993 through a shower gel package. For the prior art, reference is also made to DEI 43 43 00017 031, US Pat. No. 2,082,691, US Pat. No. 2,106,364, 00018 US Pat. No. 3,446,406 and US Pat. No. 5,199,617. With regard to the sealing membrane, reference is made to US-PS 00021 5,409,144. In addition, also to the 00022 not prepublished German patent application i 95 00023 45 204.6. The content of the disclosure of the last-mentioned German patent application is hereby also included in full 00025 in the disclosure of the present patent application with 00026, also for the purpose of including features of the aforementioned 00027 patent application in claims of the present application with 00028. With a closure, as described at the beginning, 00031 it has been shown that as a result of pressure increases in the 00032 container on which the closure is seated, movements and stresses of the closure membrane 00034 that are as extensive as possible are connected to it Product leakage in the area of the top of the cup-shaped closure membrane 00036 bran is coming. The slide of the known Ver¬

00037 conclusion must therefore high tightness requirements

00038 are sufficient. In particular, the tightness between the

00039 upper closure part and the lower closure part as well

00040 affected with regard to the sealing membrane.

00041

00042 In the further, also in independent terms, are

Known slide valve unsatisfactory because a

00044 relatively large footprint to achieve the opening

00045 position is required.

00046

Proceeding from this, the invention is concerned with

00048 the technical problem, the known closure so

To design and further develop that as possible

00050 extensive tightness is reached. It will also be a

00051 more hygienic, user-friendly and differentiated

Desired 00052 product exit with high reliability.

00053

The invention also deals with

00055 of the technical problem, independently and in Kombina¬

00056 tion with the above problem, a structural

Achieve 00057 favorable arrangement.

00058

00059 This technical problem is first and foremost

Lichen solved in the subject matter of claim 1, wherein

It is geared to the fact that the sealing membrane in

00062 unactuated installation condition an upper cover

Has 00063, with an arrangement near the breech

00064 ber. Surprisingly, it has been found that

00065 this arrangement and design of the closure membrane,

00066 wherein the top cover of the top of the ver¬

00067 forms the final membrane and thus close to an inner surface

00068 of the slide valve is arranged, an increase

Can achieve 00069 te tightness. The arrangement can also

00070 must be taken so that the locking slide in the 00071 final state in direct contact, and thus

00072 tend with the blanket or, as below

00073 explained in detail, an edge region of the closure

00074 ceiling is. The openings mentioned are preferred

00075 centrally overlapping. The slide gate

00076 more preferably moves according to a superimposed

00077 devices shifting and rotating movement. 00078

00079 Another preferred embodiment of a closure

00080 ses with a rotatable cap, as essentially

00081 provided above, but not on it

00082 arrives that the closure membrane in the unactuated input

00083 construction condition has an upper cover, with

00084 an arrangement near the slide gate, strikes

00085 proposes that the slide slide open two partial slides

00086, which partially in the locked state

00087 close an opening. This configuration is with

00088 surprising structural advantages. On the one hand

00089 the required floor plan can be largely reduced

Become 00090. This opens up the

00091 conclude, for example, essential areas of application

00092 lent containers with which small and very small quantities

Are to be dosed. Second, the required

00094 angle of rotation of the cap can be significantly reduced.

This configuration is also particularly advantageous in

00096 combination with a sealing membrane as described

00097 and described in detail below. par-

00098 with regard to the design that in the inactive

00099 installed condition the top cover arranged

00100 is near the locking slide or a sliding

00101 way of the slide gate. This is also how it is

00102 practically irrelevant at all that the

00103 closing slide has a division joint. The tight

00104 speed is achieved by the contact of the edge bead on the

00105 final slide reached. 00106 The design of the closure membrane with the upper closure

00107 final cover can be achieved on the one hand that

00108 the closure member known from US Patent 5,409,144

00109 bran is installed in the inverted state. Then must

00110 not the cover blanket when the pressure rises

00111 can be moved up and by further pressure increase

00112 the cover blanket is bent so far in the middle,

00113 that are formed in the sealing membrane

00114 Open the opening slots and release the product. Much more

00115 can the cover blanket without rolling over displacement

00116 of the connecting wall are brought to the opening. It is

00117 however possible and within the scope of the present invention,

00118 as explained in more detail below, before

00119 pulls that the connecting wall on a stretch reserve

00120 points with which the cover blanket in a printer

00121 increase initially in a straight line parallel to

00122 itself is lifted and only then in the opening

00123 transition state. This stretch reserve of the connection

00124 also makes it possible to use appropriate

00125 tion and formation of a stop or umlau

00126 fenden stop bar in the closure, the measure of

00127 increase to be set differently depending on the closure

00128 len. The fact that the cover blanket in

00129 state of the shutter slide immediately

00130 below this or adjacent to an inward

00131 the surface of the slide is arranged comes

00132 there is a pressure increase in the container, in the

00133 closing state of the closure, not or practically

00134 not to the mentioned shift of the closure

00135 cover the sealing membrane to the outside. Rather hits

00136 the cover blanket or a peripheral edge thereof

00137 the same or soon in contact with the locking slide

00138 ber. This also occurs due to the described

00139 rectilinear increase parallel to itself none or

00140 practically no displacement of the cover or 00141 a peripheral edge of the same radially outward.

00142 By the flat or more preferred concave shape

00143 of the blanket results from the

00144 internal pressure in the container itself, such a

00145 exercise pressure in the blanket that there is still one

00146 firmer closing of the closure membrane comes. Naughty

00147 wanted product leak in the locked state of the

00148 conclusion can practically no longer be determined

00149 den. In a further embodiment, it is also preferred

00150 see that the connecting wall mentioned below

00151 funnel-shaped taper extends downward and

00152 the cover blanket with a mounting ring of the lock

00153 membrane connects. In addition, it is also preferred

00154 that the cover is concave, as already

00155 executed, and that the closure cover mediates the

00156 connecting wall on a funnel-shaped

00157 seat of the valve lower part sits. hereby

00158 becomes the exit characteristic, return characteristic

00159 and closure characteristics of the closure membrane still

00160 further supported and improved. Through the membrane

00161 characteristics, mainly resulting from their

00162 everted state and the vertical menma lift before

00163 opening the slide is a so-called

00164 shock absorber effect with integrated, such that after

00165 application, exactly when the packaging

00166 remains unlocked when "hard" parking on one

00167 fixed documents no product leaks. The impact

00168 pressure, which can lead to the opening of the membrane slots

00169 te, is cushioned by the diaphragm stroke and thus in

00170 highly compensated. The opening in the twist cap

00171 is preferably made smaller than the opening in

00172 the slide gate. The rotating cap also has

00173 pulls a downward projection, assigned

00174 net to the opening, which in the open state in the

00175 opening of the locking slide engages. The lead 00176 is preferably all around the opening of the rotary cap

00177 trained. For example, it is advantageous in the rear

00178 look at a rest state in the open position.

00179 This is also with regard to a connectable with it

00180 acoustic signal of importance. Such akkustis¬

00181 ches signal of delivery or delivery, can by a

00182 snapping, suitable pair of ribs between Ver¬

00183 bottom and top part pronounced if necessary

00184. In a further preferred embodiment, which

00185 also in particular independently of the explanations at the beginning

00186 ten features has independent meaning

00187 provided that the lower closure part and the Ver¬

00188 closing slide are integrally formed with each other.

00189 For this purpose, it is advantageous that the lower closure part

00190 and the locking slide with a film joint

00191 who are connected. It is further preferred that the

00192 closure slide on an the opening in the closure

00193 lower surrounding surface on one of the Ver¬

00194 bottom part upward growing approach itself

00195 continues laterally. With regard to the execution

00196 rungsform that the slide valve from several Teil¬

00197 slide, it is also preferred that a part

00198 lungsfuge is arranged in the closed state that

00199 through the opening or the openings approximately in the middle

00200 sets. In more detail it is also preferred that

00201 the dividing line is curved. In particular that

00202 the dividing line is S-like.

00203

00204 The invention is further based on the

00205 attached drawing, which is only an Ausfüh¬

00206 illustrates example. Here shows:

00207

00208 the closure in a cross-sectional view;

00209 00210 Fig. 2 shows the closure of FIG. 1 in a product

00211 bring position;

00212

00213 Figure 3 is a plan view of the closure cap.

00214

00215 Fig. 4 shows a cross section through the closure cap

00216 according to FIG. 3;

00217

00218 Fig. 5 is an enlarged view of area I.

00219 in Fig. 4;

00220

00221 Fig. 6 is an enlarged view of area II

00222 in Fig. 4;

00223

00224 Fig. 7 is an enlarged view of area III

00225 in Fig. 4;

00226

00227 Fig. 8 is a bottom view of the lower closure part

00228 with connected slide valve;

00229

00230 FIG. 9 shows a cross section through the illustration according to FIG

00231 Fig. 8, cut along the line IX-IX;

00232

00233 Fig. 10 is a plan view of the slide gate

00234 according to FIG. 8;

00235

00236 Fig. 11 is an enlarged view of the area XI

00237 in Fig. 9;

00238

00239 Fig. 12 is a section along the line XII-XII in

00240 Fig. 10;

00241

00242 Fig. 13 is an enlarged view of the area

00243 XIII in Fig. 9;

00244 00245 Fig. 14 is a plan view of the closure, partially

00246 in cross section, with the ceiling removed

00247 cap and in the open state;

00248

15 shows a representation according to FIG. 14 in the closure

00250 stand;

00251

16 shows a representation according to FIG. 10 of a second one

00253 embodiment;

00254

17 shows a representation according to FIG. 15 of the embodiment

00256 form according to FIG. 16;

00257

00258 FIG. 18 shows a representation according to FIG. 14 of the embodiment

00259 form according to FIG. 16; and

00260

00261 FIG. 19 shows a further embodiment in cross section,

00262 where the formation of the closure membrane

00263 with a central opening and one of these

00264 assigned central locking web by Bedeu¬

00265 tung is.

00266

00267

00268 is shown and described initially with reference to

00269 FIGS. 1 and 2, one with the reference number 1

00270 provided closure with a lower closure part 2 and

00271 in the form of a rotatable cap 3

00272 top closure. Between the top of the breech,

00273 more precisely a cap cover 4 and the lower closure part

00274 2 is a horizontally displaceable slide slide 5

00275 arranged. The cap cover 4 forms an opening 6

00276, while the lower closure part 2 has an opening 7

00277 trains. The openings 6 and 7 are superimposed

00278 arranged.

00279 00280 In the lower closure part 2, in the exemplary embodiment 00281 in cooperation with a container support part 8, 00282 a closure membrane, which is provided with the reference number 00283 chen 9, is arranged. 00284 00285 In the unactuated installation position 00286 shown in FIG. 1, and in addition the closure slide 5 is still in 00287 the closed position, a closure blanket 00288 10 is arranged close below the closure slide 5. 00289 In detail, the arrangement is chosen so that the 00290 concave closure cover in its edge region 11 00291 is directly adjacent to a lower surface 12 of the closing slide 5, while the closing cover 10 00293 extends towards a central axis A further from the lower side 00294 te the slide 5 removed. This, although 00295 in the exemplary embodiment, the underside 12 of the closing slide 5 is curved convexly to the closing cover 10 00297. 00298 00299 In Fig. 2 the slide 5 is in its 00300 open position. 00301 00302 If the internal pressure in the container 00303 13 to which the closure 1 is applied increases, 00304 moves the closure membrane 9 in the 00305 manner shown in FIG. 2 from the opening 7 of the lower closure part 2 00306 through an opening 14 of the closure slide 5 and the 00307 opening 6 in the cap cover 4, in order to expand by 00308 in the manner shown to the center 00309 pen and split along the separating cuts 15 for the 00310 output of product. It can be seen that the 00311 start-up movement essentially with a shift 00312 of the closing cover 10 parallel to itself, also 00313 immediately a lifting of the connecting wall 17 from the 00314 conical seat surface of the opening 7 is connected. 00315 The closure blanket 10 is in cross-section in detail

00316 composed of two circular lines, an upper one with

00317 smaller radius and a lower one with larger radius,

00318 such that the described taper towards the center

00319 results.

00320

00321 The blanket 10 is further with a lower

00322 mounting ring 16 verbun¬ via a connecting wall 17

00323 den. The connecting wall 17 is initially connected

00324 downwards, starting from the closure cover 10,

00325 a reinforcement ring 18. The rest is over two

00326 further connecting wall sections 17 'and 17' 'one

00327 connection with the mounting ring 16 given.

00328

00329 The reinforcing ring 18 has a protruding outward

00330, revolving base on which a stop

00331 area 19 forms. As can be seen from Fig. 2, lies

00332 the stop surface 19 in the actuated state on a

00333 inner surface 20 of a closure wall 21, which itself

00334 the opening 7 extends downward.

00335

00336 The connecting wall 17 and the connecting wall part

00337 piece 17 'close in cross section in the unactuated

00338 position according to FIG. 1 an acute angle, which

00339 also stands for the development reserve, as shown in Fig.

00340 2 can be seen. Also in the representation according to FIG. 2

00341 is still the inclusion of an acute angle,

00342 given a much larger angle.

00343

00344 The fastening ring 16 forms in further detail

00345 downward projecting connecting cams 22, which in

00346 engage a mounting ring 23 in a form-fitting manner. The one

00347 construction ring 23 consists of a harder plastic, wäh¬

00348 rend the sealing membrane 9 in the rest and also in particular

00349 in the area of the mounting ring 16 from a white 00350 cheren plastic, for example a silicone plastic

00351 fabric. Due to the design described

00352 is achieved in the exemplary embodiment that a concentrated

00353 tric trained to the closure wall 21,

00354 if the substantially cylindrical retaining wall 24

00355 sealing membrane 5 or the retaining ring 16 on the underside

00356 supports and an end face of the holding wall 24

00357 a horizontal surface 25 of the mounting ring 16 from

00358 rests above, so that through the interaction with the

00359 softer plastic an advantageously tight seal

00360 is given. 00361

00362 In further detail, it is important that the opening

00363 voltage 7 in the lower closure part 2, as can be seen in

00364 is essentially conical and that the closure cover

00365 ke or the connecting wall 17 in an upper area

00366 lies in the conical surface. The blanket 10 is

00367 in the embodiment by means of the connecting wall

00368 17 in the cone formation of the opening 7 in the idle state

00369 supported. This also prevents slipping through

00370 down. 00371

00372 In further detail it can be seen that the cap

00373 ceiling 4 assigned to the opening 6 down one

00374 latching bead 26, see also FIG. 5, forms. The rest

00375 bead 26 is in the open state, see FIG. 2

00376 an inclined surface 27 that opens outwards, the

00377 opening 14 of the slide 5 on. In the closure

00378 stand the locking projection 26 in a circumferential

00379 locking groove 28, see FIG. 13, of the slide slide 5

00380 inlay. The locking groove 28 is on the top of the closure

00381 slide 5 is formed. 00382

00383 As can further be seen from FIGS. 8 to 11,

00384 is the lower closure part 2 and the closure slide 00385 5 as a plastic injection molded part in one piece

00386 leads. The slide valve is attached to a

00387 term connection 29 verbun¬ with the lower closure part 2

00388 den.

00389

00390 The slide 5 has the be¬ in detail

00391 already mentioned opening 14, which via a to

00392 body part 30 of the slide 5 tied

00393 frame-like web 29 is formed. Laterally offset

00394 for this purpose the closure area 32 is formed, which

00395 cher, as can be seen from FIGS. 9 and 1, on the upper side

00396 flush with the opening area, below

00397 on the side, however, a protruding convex curvature 31

00398 points. Approximately including a right angle with

00399 a connecting line between the centers of the

00400 opening 14 and the closure region 32 of a middle

00401 axis 33 of the shift opening 34 extends

00402 the same. The sliding opening 34 engages, as well

00403 from FIG. 1, a sliding pin 35,

00404 of the cap cover 4, projecting downward

00405 is.

00406

00407 As can be seen in particular from FIG. 9, the Ver

00408 closing slide 5 on the lower closure part 2 on one

00409 growing up out of the lower part 2 of the closure

00410 approach 35 connected. In the same way grows from the

00411 lower closure part 2 upwards, approximately opposite

00412 to the approach 35, a locking recess 36 out.

00413

00414 in Fig. 12 is a cross section through the locking receptacle

00415 36 shown. One drives into this latching receptacle 36

00416 stop corner 37 of the slide slide in the closure door

00417 appeared, see FIGS. 14 and 15.

00418 00419 The locking pin 35 is enlarged again in FIG. 6

00420. There is a locking bulge on the underside

00421 recognize.

00422

00423 Next is on the cap ceiling 4, projecting downwards

00424 further locking pin 35 'formed. As from the Dar¬

00425 position shown in FIG. 15, the Rastzap¬ moves

00426 fen 35 'in the closed state in a receptacle 38 on the

00427 closure lower part 2 a.

00428

00429 Otherwise the lower closure part is via a holder

00430 apron 39 in a radially extending web wall

00431 en 40 of the container 13 or the container support part 8

00432 give rotation secured. As a result, the Ver¬

00433 closing slide 5 zwi¬ only by the locking pin 35

00434 moved the open and closed positions

00435.

00436

00437 Fig. 16 shows a slide slide 5, which two

00438 part slide 40, 41 has. The two slide valves

00439 40, 41 are each via film joints 42, 43 with the

00440 middle part 44, which is substantially similar to that

00441 middle part of the closure slide 5 according to FIG. 8

00442 and 10 is connected.

00443

00444 After folding the slide elements 40, 41 in

00445 a position according to FIG. 17, which at the same time the installation

00446 represents state in a cap, the Teilschie¬

00447 over 40, 41 in a parting line 45 to each other. The

00448 parting line 45 runs approximately centrally to the openings 6,

00449 7, partially corresponding to a diameter line. .

00450

00451 It can also be seen that each part slide also

00452 a - in plan - semicircular thickening area

00453 has rich 46, which is in the closed state 00454 to an approximately circular thickening area 46

Add 00455.

00456

00457 In further detail, the parting line 45 runs like

00458 from FIG. 17, S-shaped.

00459

00460 The embodiment according to FIG. 18 shows

00461 that a rotation of the cap here to one

00462 simultaneous, mutual separation of the

00463 part slide 40, 41 leads.

00464

00465 The areas of the partial slide 40, 41, which in the ver

00466 closed state according to FIG. 17 by juxtaposition

00467 form the parting line 45 are preferred in cross section

00468 pointed like a lip.

00469

00470 In the embodiment according to FIG. 19, a Ver

00471 closing membrane with a central, always open

00472 opening provided as detailed in the

00473 WO95 / 26306. The revelation content

00474 of this document is regarding the closure mem

00475 bran and its interaction with lower center

00476 supports hereby fully in the content of the disclosure

00477 registration included, also to the

00478 Purposes, features of the application mentioned in claims

00479 including this application. In addition

00480 from this embodiment is also in the already

00481 initially mentioned German patent application 195 45

00482 204.6. To the related reference

00483 is explicitly referred to again.

00484

00485 The constantly open opening 47 is approximately in the middle with respect

00486 the closure membrane is formed. This will be over the edge

00487 gripping with respect to the opening 47, from the lower one 00488 attachment plate 48 closed. The attachment plate 48 is 00489 connected to the wall 50 via a web 49. 00490 00491 Otherwise there are essentially the same conditions as described above for the other embodiments 00493. 00494 00495 All features disclosed are essential to the invention. In 00496 the disclosure also includes the disclosure content of the associated priority documents (copy 00498 of the prior application) in full with 00499 for the purpose of including features of these documents in claims 00500 of the present application. 00501

Claims

00502 A N S P R Ü C H E

00503

00504 1. Closure (1) with a lower closure part (2) and

00505 in the form of a rotatable cap (3)

00506 top closure, further with a between the Ver¬

00507 final lower part (2) and the upper closure part (3) ange¬

00508 arranged, essentially horizontally displaceable Ver¬

00509 closing slide (5), for closing in the closure

00510 lower part (2) and the upper closure part (3)

00511 th, superimposed openings (6,7), wherein in

00512 the lower closure part (2) further the lower opening

00513 opening (7) filling closure membrane (9) arranged

00514, characterized in that the sealing membrane

00515 (9) in the unactuated installation state an upper locking

00516 blanket (10), with an arrangement near the Ver¬

00517 closing slide (5).

00518

00519 2. Closure according to the features of the preamble of

00520 Claim 1, characterized in that the closure

00521 slide (5) has two part slides (40, 41), which

00522 surface in the closed state in each case one opening

Close 00523 (6, 7).

00524

00525 3. Closure according to claim 2, characterized in

00526 that the closure membrane (9) in the unactuated installation

00527 had an upper cover (10), with

00528 an arrangement near the slide gate (5).

00529

00530 4. Closure according to one of claims 1-3 or in particular

00531 others thereafter, characterized in that the closure

00532 ceiling (10) with a substantially circular overall

00533 cross section has an outer peripheral edge (11),

00534 which by increasing the internal pressure in one

00535 the closure (1) provided container (13) against the 00536 the slide valve 00537 (5) closing the closure opening can be pressed for sealing. 00538 00539 5. Closure according to one or more of the preceding 00540 claims or in particular according thereto, characterized in 00541 that the concavely curved closure cover (10) 00542 by means of the connecting wall (17) of the closure membrane 00543 bran (9) on one funnel-shaped seat surface of the lower valve part (2) is seated. 00545 00546 6. Closure according to one or more of the preceding claims 00547 or in particular according thereto, characterized in that the opening (6) in the rotating cap (3) 00549 is smaller than the opening in the closing slide 00550 (5) . 00551 00552 7. Closure according to one or more of the preceding claims 00553 or in particular according thereto, characterized in that the rotating cap (3) has a downward facing 00555 the locking projection (26) which was in the opening position 00556 00557 engages in the opening (14) of the closure slide (5). 00558 00559 8. Closure according to one or more of the preceding 00560 claims or in particular according thereto, characterized in that the closing slide (5) in the closing position 00562 stood on a peripheral edge of the ceiling (10) of the closing membrane 00563 ( 9) rests. 00564 00565 9. Closure according to one or more of the preceding claims 00566 or in particular according thereto, characterized in that 00567 that the lower closure part (2) and the closure slide (5) are integrally formed 00569. 00570 00571 10. Closure according to one or more of the preceding claims 00572 or in particular according thereto, characterized in that 00573 that the lower closure part (2) and the closure slide (5) are connected to one another 00575 via a film joint (29). 00576 00577 11. Closure according to one or more of the preceding claims 00578 or in particular according thereto, characterized in that the closure slide (5) at 00580 surrounds the opening (7) in the lower closure part (2) 00581 Surface on a projection (35) which grows upwards out of the lower closure part (2) 00582 and extends laterally 00583 (in the sprayed state). 00584 00585 12. Closure according to one or more of the preceding claims 00586 or in particular according thereto, characterized gekenn¬ 00587 that the part slide (40, 41) in a Tei¬ 00588 gaps (45) abut each other, such that the Tei¬ 00589 expansion joint (45) penetrates an opening (6, 7) approximately in the middle 00590. 00591 00592 13. Closure according to one or more of the preceding claims 00593 or in particular according thereto, characterized in that the dividing joint (45) extends in an S-like manner.