EP0390974B1 - Verschluss für flexible Flüssigkeitsbehälter - Google Patents

Verschluss für flexible Flüssigkeitsbehälter Download PDF

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Publication number
EP0390974B1
EP0390974B1 EP89123025A EP89123025A EP0390974B1 EP 0390974 B1 EP0390974 B1 EP 0390974B1 EP 89123025 A EP89123025 A EP 89123025A EP 89123025 A EP89123025 A EP 89123025A EP 0390974 B1 EP0390974 B1 EP 0390974B1
Authority
EP
European Patent Office
Prior art keywords
upper portion
closure
head wall
lower portion
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89123025A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0390974A1 (de
Inventor
Karl-Heinz Rosenthal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bielsteiner Verschlubtechnik GmbH
Original Assignee
Bielsteiner Verschlubtechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bielsteiner Verschlubtechnik GmbH filed Critical Bielsteiner Verschlubtechnik GmbH
Priority to AT89123025T priority Critical patent/ATE77333T1/de
Publication of EP0390974A1 publication Critical patent/EP0390974A1/de
Application granted granted Critical
Publication of EP0390974B1 publication Critical patent/EP0390974B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/26—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves, i.e. valves that open and close a passageway by sliding over a port, e.g. formed with slidable spouts
    • B65D47/28—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves, i.e. valves that open and close a passageway by sliding over a port, e.g. formed with slidable spouts having linear movement
    • B65D47/286—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves, i.e. valves that open and close a passageway by sliding over a port, e.g. formed with slidable spouts having linear movement between planar parts

Definitions

  • the invention relates to a closure for flexible liquid containers according to the preamble of patent claim 1.
  • the flexible liquid containers are made of plastic and enable the flowable material contained therein to be dispensed by squeezing the wall of the container by hand and by releasing the internal volume of the container, and releasing the flowable material therein, through the opened closure can.
  • the flexible containers are usually designed so that their wall automatically resumes the original position when the operator stops exerting pressure on the container wall or lets go of the container and puts it away. The wall of the container naturally only resumes the original starting position if atmospheric air can penetrate into the interior of the container at the same time.
  • the invention has for its object to improve a closure of the known type specified in claim 1 so that a flexible liquid container equipped therewith pressed in a substantially upright position for dispensing liquid by hand and after its release can immediately suck in air without the Outflow channel of the closure is completely emptied to ensure immediate dispensing of the container contents when emptied again.
  • the closure should be safe for transportation when closed.
  • the lifting device mentioned in claim 2 on the top wall of the lower part enables a faultless and wear-free movement of the upper part between its closed and open position relative to the lower part in cooperation with the pretensioning device.
  • the lower part is provided with a guide groove for the longitudinally displaceable upper part, an aesthetically appealing shape of the closure is ensured with safe guidance of the upper part in the lower part.
  • the design of the pretensioning device by spring elements attached to the outside of side cheeks of the upper part according to claim 4 makes it possible to form the pretensioning device in one piece with the closure in one operation.
  • the lifting device can also be produced in one piece with the closure, the lifting cams provided on the head wall allowing the upper part to be felt and fixed in the closed position and in the open position.
  • the upper part of the closure allows an arrangement of the discharge opening radially and axially parallel to the head wall (claim 9) or a downward arrangement (claim 10).
  • a closure 20 made entirely of plastic is shown graphically in the closed position (FIG. 1) and in the open position (FIG. 2).
  • the closure 20 consists of a lower closure part 32 and an upper closure part 34.
  • a diametrical guide groove 53 extends through the lower part 32, in which the upper part 34 extends transversely to the central longitudinal axis of the closure between the closed position shown in FIG. 1 and the open position in FIG. 2 and is slidably mounted here.
  • Fig. 2 shows that the outer surface of the upper part 34 and the lower part 32 are flush with one another in the closed position of the closure, so that the closure has a pleasing outer shape.
  • the closure 20 is shown in a position in which it was removed in one piece from a corresponding plastic injection mold.
  • the closure 20 is provided for flexible, preferably plastic liquid containers 30 (FIGS. 11, 13, 15 and 16) which can be emptied by exerting pressure on the flexible container wall.
  • the closure 20 can be designed in a manner known per se as a bounce or thread closure.
  • the closure shown in FIGS. 4, 5, 11, 13, 15 and 16 has a bounce closure in which two snap arms 84 (FIGS. 4, 5) with snap jaws 85, 86 form an annular bead 87 on the outside of a container opening 47 surrounding it Reach in under the neck of the container 48 with a locking action and tightly clamp the lower closure part 32 on the end face of the container neck 48.
  • a cylindrical sealing cone 35 is provided coaxially to the snap arms 84 on the underside of a head wall 49 of the lower part 32 and engages sealingly in the opening 47 of the container neck 48.
  • a substantially cylindrical shell 83 extends radially outside of the the snap arms 84 from the outer edge of the head wall 49 of the lower part 32 down to the top of the container 30.
  • the top wall 49 of the lower part 32 is provided for the liquid in the container 30 with a passage opening 50 which is surrounded by a conical edge 89.
  • the upper part 34 is equipped with a pretensioning device 55, which is described in more detail below (FIGS. 8 to 10).
  • This pretensioning device interacts with the lower part 32 such that, as shown in FIG. 11, in the closed position of the upper part 34, the inlet opening 51 of an outflow sleeve 39, which opens into an outflow channel 36 in the upper part 34, seals with elastic prestressing on a recessed, membrane-like one Residual filling material outlet stop 33 of the top wall 49 and in the open position of the upper part 34 is pressed onto the conical edge 89 of the passage opening 50 in the top wall 49 of the bottom part 32 (FIG. 13).
  • the outflow sleeve 39 is arranged in the direction of arrow X of the opening movement of the upper part 34 at a short distance behind a sealing sleeve 38 parallel to it and protrudes downward from the underside 72 of the upper part 34 to the same length as the sealing sleeve 38.
  • the sealing sleeve 38 lies in the closed position of the upper part 34 with elastic prestressing sealingly on the conical edge 89 of the passage opening 50 in the lower part 32 and is arranged in the open position of the upper part 34 at a distance above the top wall 49 of the lower part 32, as shown in FIGS. 11 and 13 show.
  • the outflow channel 36 extends behind the outflow sleeve 39 in an arc downward to its discharge opening 73, which in the closed position of the upper part 34 is sealed on a sealing pan 90 on the top of the top wall 49 of the lower part 32 rests and is open in the open position of the upper part 34 outside the head wall 49 downward (Fig. 13).
  • the prestressing device 55 consists of spring elements 58, 59 which are attached to the outside of side cheeks 61, 62 of the upper part 34 (FIG. 8).
  • the skid-shaped spring elements 58, 59 engage in longitudinal slots 63, 64, which are delimited at the ends, shown in FIG. 7, in the side walls 56, 57 of the guide groove 53 and are with their skid ends 66, 67 on the upper slot edge 54 of the two longitudinal slots 63, 64 led.
  • the lower edge 65 of the side cheeks 61, 62 of the upper part is held a short distance above the head wall 49 of the lower part 32 both in the closed position and in the open position of the upper part 34.
  • a lifting device 60 is provided on the top of the head wall 49, by means of which the upper part 34 counteracts its movement from the closed or open position into the open or closed position from the head wall 49 of the lower part 32 the effect of the biasing device 55 can be lifted.
  • the lifting device 60 consists of two lifting cams 70, 71.
  • the lifting cams 70, 71 are arranged on the top of the head wall 49 in the region of the movement path of the longitudinally extending lower edge 65 of the side cheeks 61, 62 (FIG. 8) of the upper part 34.
  • the height of the lifting cams 70, 71 is such that when the upper part 34 with the lower edges 65 of the side walls 61, 62 rests on the lifting cams 70, 71, the lower free ends of the sealing sleeves 38, the outflow sleeve 39, the sealing mandrel 44 and of the valve mandrel 45 are higher than the highest elevations of the head wall 49 and the edges of the outlet stop 33 and the passage opening 50.
  • the lower edge 65 of the side cheeks 61, 62 of the upper part 34 is each provided with a cutout 75 which corresponds to the longitudinal profile of the lifting cams 70, 71 on the head wall 49 of the lower part 32.
  • the engagement of the lifting cams 70, 71 in the cutout 75 in both side cheeks 61, 62 of the upper part 34 determines the closed position of the upper part 34 with respect to the lower part 32.
  • the lifting cams 70, 71 engage with enough clearance in the cutouts 75 of the side walls 61, 62 that the sealing sleeve 38 seals the passage opening 50 with elastic pretension and also the outflow channel 36 on the inlet and outlet sides 51, 73 opposite the head wall 49 is sealed.
  • the side cheeks 61, 62 rest for fixing the upper part 34 in the open position with a rear inclined surface 68 on a corresponding inclined end surface 69 of the lifting cams 70, 71.
  • the top wall 49 as seen in the longitudinal direction of the upper part 34, is provided with a ventilation valve 43 next to the passage opening 50 (FIGS. 3, 7, 12, 14).
  • the ventilation valve 43 consists of a membrane 95 which has a central hole 96.
  • the hole 96 is closed in the closed position of the upper part 34 by a sealing mandrel 44 which protrudes from the underside 72 of the lower part 32 (FIG. 12).
  • the membrane 95 of the ventilation valve 43 interacts with a valve mandrel 45, which likewise protrudes parallel to the sealing mandrel 44 from the underside 72 of the upper part, but is dimensioned shorter than this (FIG. 14).
  • the membrane 95 lifts off from the valve mandrel 45 and allows the air to pass into the container from outside if there is negative pressure in the container.
  • the membrane 95 is pressed and sealed against the valve mandrel 45.
  • air is therefore pressed into the container 30 not only through the outflow channel 36 but also through the ventilation valve 43.
  • an insertion opening 74 for the riser pipe 31 is provided coaxially with the passage opening 50, which can be connected to the insertion opening 74 by a press fit and / or gluing or heat sealing.
  • the riser pipe 31 extends with its lower end to the bottom of the container (not shown), so that the liquid container 30 can be completely emptied in the upright position.
  • 3 to 5 and 11 to 14 show that the lower part 32 and the upper part 34 are connected to one another by a web 79, which according to FIG. 5 has a smooth outside, but on the inside with four hinges 40, 76, 77, 78 is provided, through which web sections 80, 81, 82 are connected.
  • the web section 82 articulated on the upper part 34 and the central web section 81 have a width corresponding to the upper part 34.
  • the third web section 80 connected to the lower part 32 is connected to the jacket 83 of the lower part 32 by the hinge 40, the width of which is dimensioned to be substantially smaller than the width of the upper part 34.
  • This arrangement makes it possible for this third web section 80 in the closed position of the upper part 34 to be flush with the outside of the lower part 32.
  • the outer end of the third web section 80, which ends in the hinge 73 with the jacket 83 of the lower part 32 has a radius is rounded, which corresponds approximately to the radius of the shell 83 of the lower part 32.
  • the second embodiment of a container closure 120 shown in FIGS. 15 and 16 differs from the first embodiment only in that the outlet channel 136 opens out over its entire length parallel to the head wall 149 into a discharge opening 173 which is thus directed radially to the main axis of the container 130 and into which a spray nozzle can optionally be inserted. Otherwise, the functioning of the closure is identical to that of the first embodiment in FIGS. 1 to 14, as is readily apparent from the FIGS. In which the reference numerals for the identical or functionally identical components are preceded by a "1".
  • FIGS. 11 to 14 The mode of operation of the container closure according to the invention can best be seen from FIGS. 11 to 14, which essentially also applies to the mode of operation of the second embodiment in FIGS. 15 and 16.
  • the closed position of the upper part 34 relative to the lower part 32 can be seen in two different sections.
  • the outflow sleeve 39 is completely sealed by the residual filling outlet stop 33, so that liquid which remains after the dispensing of liquid from the container 30 in the outflow channel 36 and the outflow sleeve 39 cannot run out through the outflow sleeve 39 and contaminate the lower closure part 32 .
  • the discharge opening 73 is completely closed by the sealing pan 90, so that any liquid remaining therein does not leak out of this end of the outflow channel 36 and can contaminate the lower part 32 of the closure 20.
  • the sealing sleeve 38 closed at the upper end seals the passage opening 50 and thus the container 30 from the outside.
  • the web 79 assumes a rectangular position, as shown in FIG. 11, in relation to that shown in FIG. 1 Shape of the closure leads.
  • the web section 80 connected to the jacket 83 nestles against the rear concave wall 91 of the jacket 83, while the other two web sections 81, 82 form a right angle.
  • the biasing force of the spring elements 58, 59 is practically completely implemented as the closing force of the outflow sleeve 39 with respect to the passage opening 50 and the sealing mandrel 44 with respect to the ventilation valve 43.
  • the lower edges 65 of the side cheeks 61, 62 are therefore always in the closed and open position of the upper part 34 at a short distance above the top of the head wall 49.
  • the closed position of the upper part 34 is fixed in the direction of movement of the upper part in that the lifting cams 70, 71 engage in the corresponding cutouts 75 of the side cheeks 61, 62 while leaving a margin.
  • the lifting cams 70, 71 are, seen in the longitudinal direction of the upper part 34, with their longitudinal center exactly on a cross-sectional plane of the upper part 34, which is in the middle between the axes of the sealing sleeve 38 and the discharge sleeve 39 or the sealing mandrel 44 and the valve mandrel 45, which in turn lies in a cross-sectional plane of the upper part 34 are arranged with the sealing sleeve 38 or the outflow sleeve 39.
  • the back and forth movement of the upper part 34 between the closed and open positions is facilitated in that the end faces of the lifting cams 70, 71 as well as the rear inclined surface 68 of the side cheeks 61, 62 are chamfered.
  • the upper part 34 engages in the closed and open positions with a latching action. 13 and 14, the opening position of the upper part 34 is characterized in that the outlet sleeve 39 rests tightly on the conical edge 89 of the passage opening 50 with its opening edge under the pretension of the spring elements 58, 59.
  • the discharge opening 73 is open downward outside the jacket 83 of the lower part 32.
  • the sealing sleeve 38 lies freely above the top of the head wall 49.
  • the web 79 lies stretched within the side walls 56, 57 of the guide groove 53 in the lower part 32.
  • FIG. 14 shows that in the open position of the upper part 34, the sealing mandrel 44 is freely above the top of the head wall 49. Since the valve mandrel 45 is shorter than the sealing mandrel 44, the hole edge of the membrane 95 is pressed and sealed tightly against the valve mandrel 45 when pressure is exerted on the flexible plastic container 30. When the pressure on the container wall is released, air can flow into the container through the ventilation valve 43, the pressed-in container wall returning to its original shape.
  • FIG. 14 clearly shows that the rear inclined surface 68 bears against the corresponding front inclined end surface 69 of the lifting cams 70, 71 and thereby prevents the upper part 34 from being easily moved backwards in the direction of its closed position. In fact, this closing movement is only possible by exerting a sufficient force on the upper part 34 in the closing direction.
  • closure according to the invention is also suitable as a child-resistant closure for flexible containers with a liquid content which, if the container and its contents are improperly handled, can endanger the user.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Thermally Insulated Containers For Foods (AREA)
EP89123025A 1989-04-06 1989-12-13 Verschluss für flexible Flüssigkeitsbehälter Expired - Lifetime EP0390974B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89123025T ATE77333T1 (de) 1989-04-06 1989-12-13 Verschluss fuer flexible fluessigkeitsbehaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3911183 1989-04-06
DE3911183A DE3911183C1 (pt) 1989-04-06 1989-04-06

Publications (2)

Publication Number Publication Date
EP0390974A1 EP0390974A1 (de) 1990-10-10
EP0390974B1 true EP0390974B1 (de) 1992-06-17

Family

ID=6378011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123025A Expired - Lifetime EP0390974B1 (de) 1989-04-06 1989-12-13 Verschluss für flexible Flüssigkeitsbehälter

Country Status (5)

Country Link
US (1) US5115949A (pt)
EP (1) EP0390974B1 (pt)
AT (1) ATE77333T1 (pt)
DE (2) DE3911183C1 (pt)
ES (1) ES2033511T3 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328061A (en) * 1992-11-18 1994-07-12 Jeffrey M. Libit Sliding dispensing cap and dispensing stopper
US5390828A (en) * 1993-05-20 1995-02-21 Aptargroup, Inc. Closure with two-part slidable dispensing cap
US5687885A (en) * 1995-10-24 1997-11-18 Minnesota Mining And Manufacturing Co. Dispensing container and sliding cap assembly
US6398133B1 (en) 1999-12-22 2002-06-04 Emsar, Inc. Dispensing head for a squeeze dispenser
US7370773B2 (en) * 2004-12-21 2008-05-13 Mcneil-Ppc, Inc. Child-resistant closure for dispensing containers
US20070246467A1 (en) * 2006-04-18 2007-10-25 Gaplast Gmbh Stopper for a container
US20080171981A1 (en) * 2007-01-11 2008-07-17 Forhealth Technologies, Inc. Tamper evident cap for a drug delivery device
US8459510B2 (en) 2010-07-20 2013-06-11 David S. Smith America, Inc. Dispenser assembly
US8353869B2 (en) 2010-11-02 2013-01-15 Baxa Corporation Anti-tampering apparatus and method for drug delivery devices
US8690026B2 (en) 2011-10-25 2014-04-08 David S. Smith America, Inc. Fluid dispensing assembly
US9643759B2 (en) * 2012-12-28 2017-05-09 Galderma R&D Closure for container, combination thereof, and method of using same
USD734153S1 (en) 2013-09-27 2015-07-14 Galderma R&D Closure for a container
US20160297577A1 (en) * 2015-04-09 2016-10-13 Gojo Industries, Inc. Hygiene system for dispensing hygiene product
CN107537214A (zh) * 2017-09-13 2018-01-05 中石化川气东送天然气管道有限公司 管道球阀排污过滤装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847703A (en) * 1931-05-16 1932-03-01 Ullman Martin Container
US2050809A (en) * 1933-10-23 1936-08-11 Ruetz Karl Collapsible tube
US2334035A (en) * 1942-10-27 1943-11-09 John Y Robertson Container for commodities
US2969167A (en) * 1957-04-17 1961-01-24 Sidney M Libit Combined closure and spout for a fluid dispensing receptacle
US2971680A (en) * 1957-05-27 1961-02-14 Woodrow S Wilson Dispensing caps
US2917210A (en) * 1958-05-09 1959-12-15 Sidney M Libit Dispensing closures
US2918200A (en) * 1958-11-12 1959-12-22 Sidney M Libit Dispensing closure
US3146913A (en) * 1961-06-29 1964-09-01 Nagai Kiyoshi Cap having a non-drip spout
US3655102A (en) * 1969-12-15 1972-04-11 James G Moran Bottle cap and cover
US3677445A (en) * 1970-10-30 1972-07-18 Robert P Linkletter Spout-type safety dispensing cap
NL7407657A (pt) * 1973-06-13 1974-12-17
US4057177A (en) * 1977-01-18 1977-11-08 Laauwe Robert H Valved squeeze bottle for viscous products
DE8323159U1 (de) * 1983-08-11 1983-11-17 KISICO, Kirchner, Simon & Co GmbH Kunststoffverarbeitung, 6227 Oestrich-Winkel Flaschenverschluss
FR2628068B1 (fr) * 1988-03-01 1990-06-29 Emballages Conseils Etudes Capsule a tiroir et a curseur coulissant

Also Published As

Publication number Publication date
DE58901702D1 (de) 1992-07-23
ES2033511T3 (es) 1993-03-16
US5115949A (en) 1992-05-26
EP0390974A1 (de) 1990-10-10
DE3911183C1 (pt) 1990-05-31
ATE77333T1 (de) 1992-07-15

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