EP0624525A2 - Fermeture automatique - Google Patents

Fermeture automatique Download PDF

Info

Publication number
EP0624525A2
EP0624525A2 EP94107026A EP94107026A EP0624525A2 EP 0624525 A2 EP0624525 A2 EP 0624525A2 EP 94107026 A EP94107026 A EP 94107026A EP 94107026 A EP94107026 A EP 94107026A EP 0624525 A2 EP0624525 A2 EP 0624525A2
Authority
EP
European Patent Office
Prior art keywords
closure
closure according
reinforcement plate
sealing ring
ring
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.)
Granted
Application number
EP94107026A
Other languages
German (de)
English (en)
Other versions
EP0624525B1 (fr
EP0624525A3 (fr
Inventor
Wolfgang Linneweber
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19934315697 external-priority patent/DE4315697C1/de
Priority claimed from DE19944406162 external-priority patent/DE4406162A1/de
Application filed by Individual filed Critical Individual
Publication of EP0624525A2 publication Critical patent/EP0624525A2/fr
Publication of EP0624525A3 publication Critical patent/EP0624525A3/fr
Application granted granted Critical
Publication of EP0624525B1 publication Critical patent/EP0624525B1/fr
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
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
    • 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
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure

Definitions

  • the invention relates to a self-closing closure for containers intended for holding pasty or viscous masses, in particular tubes, wherein the closure can be opened by pressure on the flexible wall.
  • Closures of the genus shown are known. In general, these closures are formed in two parts, which makes the manufacture and / or assembly and / or operation and / or maintenance more difficult. In addition, these closures are subject to increased wear (DE 25 15 095 A1).
  • a reinforcement plate with an associated crossbar softer material are directly connected and enclosed, solved, the softer material being molded onto the reinforcement plate in a two-component injection molding process.
  • the different properties of the two materials mean that a spring force acts on the reinforcement plate, which is caused by the tensile force of the softer material.
  • This spring force can be determined or influenced in that, according to the invention, a material accumulation is injection molded onto the underside of the reinforcement plate.
  • the material accumulation expediently runs laterally in the central region of the crossbar arranged below the reinforcement plate.
  • the reinforcement plate can be provided with openings which expediently run in a symmetrical arrangement to the side of the crossbar.
  • the reinforcement plate has at least one anchoring rib arranged on the circumference, which can be designed as a partial circular ring and which can advantageously be fixed directly or indirectly on the container.
  • the molded, softer material can serve as a seal on the outer boundary of the reinforcement plate.
  • the reinforcement plate is connected to the crossbar via a film hinge.
  • the reinforcement plate can be molded directly onto a closure cap of the container.
  • it also exists the possibility of connecting the reinforcement plate via an additional sealing ring, the arrangement of a sealing cap advantageously being dispensed with by the design of the sealing ring.
  • an external pressure is applied to the wall of the container, as a result of which the entire area of the reinforcement plate is pivoted upwards in its entirety or only in the predetermined area, thereby opening up an upper opening.
  • the reinforcement plate is automatically returned to the starting position due to the spring force derived from the molded softer material and the associated elasticity.
  • a bottle is partially shown as a container.
  • a closure cap 2 with an associated sealing ring 4 is arranged on the neck of this container 1.
  • This sealing ring 4 has a circumferential sealing lip 6 on its outside, cf. Figure 6, which is designed as a projecting circular ring.
  • the sealing ring 4 is fixedly arranged on the sealing cap 2 via the sealing lip 6.
  • the sealing ring 4 is provided with a crossbar 3, which is thus indirectly fixedly arranged on the closure cap 2 or the neck of the container 1.
  • a reinforcing plate 5 is assigned to the sealing ring 4, a film hinge 7 being arranged between the sealing ring 4 and the reinforcing plate 5 as a connecting element. This ensures easy mobility of the gain adjuster 5.
  • the crosspiece 3 runs below the center of the reinforcement plate 5, which is provided with two openings 8 arranged on the side of the crosspiece 3.
  • the sealing ring 4 with its cross bar 3 and the reinforcement plate 5 are enclosed by a softer molded material 10.
  • a softer molded material 10 From Figure 8 it can be seen that on the underside of the reinforcement plate 5 laterally the crossbar 3 in the central region of a material accumulation 9 is molded. The transition from the material accumulation 9 to the rest of the injection molded softer material 10 has an arcuate boundary. The accumulation of material 9 runs according to the bottom view. Figure 9 perpendicular to the crossbar 3 and has a rectangular shape. At the outer boundary of the reinforcement plate 5, the molded softer material 10 also serves as a sealing seal.
  • the reinforcement plate 5 can be raised all around or only partially by an internal pressure to form an opening.
  • the circumferential opening is formed by a circular ring which is formed between the inside of the sealing ring 4 and the outer boundary of the reinforcement plate 5, cf. Figure 4.
  • the reinforcement plate 5 is only partially raised, because the reinforcement plate 5 is prevented from moving upward on a predetermined circumferential area.
  • an anchoring rib is injection molded onto the sealing ring 4 and inserted into a recess in the reinforcement plate 5.
  • the front end of the reinforcement plate 5 is provided with a cover 12 which can be clipped onto the outer wall of the sealing ring 4.
  • the cross-sectional area of the wall 13 of the container opening or the cap 17 is annular, ie round. However, as FIGS. 14 and 15 show, it can also be square or oval, but can also have another suitable shape.
  • the actual elastic closure is located on the upper edge of the wall 13 within the opening of the container (tube neck) or the closure cap 17 and consists of a closure 18 molded integrally on the inside of the wall 13, which consists of a cross-sectional shape of the container or Closure cap opening corresponding elastic hinge ring 14 and two locking tabs 15 connected on one side to the hinge ring 14 is formed.
  • the closure tabs 15 abut elastically on a closure opening line 16 in the middle of the closure 18, so that a tight closure of the tube is ensured.
  • Reinforcing ribs 21, which are connected to the inside of the wall 13, are formed on the underside of the hinge ring 14 and the closure tabs 15 in order to stabilize the closure 18 and to influence its elasticity.
  • the two locking tabs 15 formed on the hinge ring 14 are much stronger on the side on which they are connected to the hinge ring 14 than on the locking opening line 16, ie the locking tabs 15 taper - beveled or curved - to the closure opening in such a way that it is on the closure opening line 16 in the manner of sealing lips bump together elastically.
  • the taper of the locking tabs 15 to the locking opening line 16 forms, as shown in FIG. 11, an arc-shaped tapering gap 19.
  • this gap can also be wedge-shaped due to a straight bevel and also have a semicircular cross-sectional area.
  • the rounding or beveling of the closure flaps 15 starting from the closure opening line 16, as indicated in FIG. 17, is provided with small scraper lips 20 in order to be able to return the medium located in the opening region to the interior of the container cleanly.
  • the taper of the locking tabs 15 in the edge region to the hinge ring 14 can be far less than in the central region of the closure opening line 16, so that the closure 18 has a high elasticity only in a central region and is opened in order to form an oval or circular opening 23 or to be easier to open in this area.
  • the closure tabs 15 can also taper spherically towards the center of the opening 23, in order to act in this way on the size and shape of the opening released by the closure tabs 15 and to enable a very fine metering of the tube contents.
  • the hinge ring 14 on the circumference of the locking tabs 15 is not is uniformly strong, but gradually becomes thinner towards the opening center line 16, ie the weakest point of the hinge ring 14 is located where the two locking tabs 15 abut on the opening center line.
  • the hinge ring 14 becomes more elastic and stretchable toward the closure opening line 16, in order thus to make the closure 18 easier to open.
  • FIG. 17 also shows a closure in which only one half side can be opened by the hinge ring 14 being attached only on one side and only one closure tab 15 being provided, while the other half side of the closure 18 is formed by a rigid tab 22. This training is intended to enable an even smaller dosage.
  • the closure 18 formed from the hinge ring 14, the closure tabs 15 and the reinforcing ribs 21 is formed overall from a soft elastic material, while the tube neck or the closure cap 17 consist of a comparatively harder material. If a pressure is now exerted from the outside onto the container or the goods located therein, the goods in turn press on the hinge ring 14, on the lower side of the locking tabs 15 and in the wedge-like or nozzle-like gap 19 between the locking tabs 15 the elasticity of the hinge ring 14, which has a much smaller strength than the locking tabs 15, and the locking tabs 15 in the area of the closure opening line 16 and the pressure on the closure flap ends increasing due to the wedge shape of the gap 19 to the closure opening line 16, the closure 18 opens an opening 23 and the material in the tube can be discharged in a metered manner.
  • the hinge ring 14 As soon as the pressure on the tube content is interrupted, the hinge ring 14, the locking tabs 15 and also the reinforcing ribs 21, which are also subject to a certain amount of expansion when opened, go precisely in the region of the locking opening line due to the material used and the specific shape or dimensioning 16 caused elasticity (see arrow direction in Figure 16) back to the starting position, so that the opening 23 is automatically sealed again.
  • the beveling of the closure flaps 15, which is directed from the closure opening line 16 towards the inside of the container, at the same time has the effect that the material located in the opening area is pressed inwards again and a clean closure of the opening 23 can be achieved without any residue.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Seal Device For Vehicle (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Control Of Combustion (AREA)
EP94107026A 1993-05-11 1994-05-05 Fermeture automatique Expired - Lifetime EP0624525B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4315697 1993-05-11
DE19934315697 DE4315697C1 (de) 1993-05-11 1993-05-11 Selbstschließender Verschluß
DE4406162 1994-02-25
DE19944406162 DE4406162A1 (de) 1994-02-25 1994-02-25 Selbstschließender Verschluß

Publications (3)

Publication Number Publication Date
EP0624525A2 true EP0624525A2 (fr) 1994-11-17
EP0624525A3 EP0624525A3 (fr) 1995-02-08
EP0624525B1 EP0624525B1 (fr) 1997-12-29

Family

ID=25925819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94107026A Expired - Lifetime EP0624525B1 (fr) 1993-05-11 1994-05-05 Fermeture automatique

Country Status (4)

Country Link
EP (1) EP0624525B1 (fr)
AT (1) ATE161500T1 (fr)
DE (1) DE59404857D1 (fr)
ES (1) ES2111795T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5858324A (en) * 1997-04-17 1999-01-12 Minnesota Mining And Manufacturing Company Lithium based compounds useful as electrodes and method for preparing same
US5927566A (en) * 1996-07-11 1999-07-27 Aptargroup, Inc. One-piece dispensing system and method for making same
US6079594A (en) * 1997-08-21 2000-06-27 Seaquist Closures Foreign, Inc. Dispensing package with a self-sealing closure constructed from a thermoplastic material
WO2004056669A1 (fr) * 2002-12-19 2004-07-08 Adolfo Rafael Soto Rojas Couvercle flexible polyvalent pour emballages et analogues

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1825553A (en) * 1926-11-15 1931-09-29 Arthur E Smith Container closure
DE1586926A1 (de) * 1966-11-29 1970-08-20 Schwartzman Gilbert Rueckstroemungsfreie Verschlusseinrichtung fuer zusammendrueckbare Behaelter
US3754690A (en) * 1970-11-18 1973-08-28 Ethyl Dev Corp Flexible container with dispensing cap
DE2515095A1 (de) * 1974-04-08 1975-10-09 Billy Nilson Selbstschliessender verschluss

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1825553A (en) * 1926-11-15 1931-09-29 Arthur E Smith Container closure
DE1586926A1 (de) * 1966-11-29 1970-08-20 Schwartzman Gilbert Rueckstroemungsfreie Verschlusseinrichtung fuer zusammendrueckbare Behaelter
US3754690A (en) * 1970-11-18 1973-08-28 Ethyl Dev Corp Flexible container with dispensing cap
DE2515095A1 (de) * 1974-04-08 1975-10-09 Billy Nilson Selbstschliessender verschluss

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5927566A (en) * 1996-07-11 1999-07-27 Aptargroup, Inc. One-piece dispensing system and method for making same
US6112951A (en) * 1996-07-11 2000-09-05 Aptargroup, Inc. One-piece dispensing system and method for making same
US5858324A (en) * 1997-04-17 1999-01-12 Minnesota Mining And Manufacturing Company Lithium based compounds useful as electrodes and method for preparing same
US6079594A (en) * 1997-08-21 2000-06-27 Seaquist Closures Foreign, Inc. Dispensing package with a self-sealing closure constructed from a thermoplastic material
WO2004056669A1 (fr) * 2002-12-19 2004-07-08 Adolfo Rafael Soto Rojas Couvercle flexible polyvalent pour emballages et analogues

Also Published As

Publication number Publication date
EP0624525B1 (fr) 1997-12-29
DE59404857D1 (de) 1998-02-05
ES2111795T3 (es) 1998-03-16
EP0624525A3 (fr) 1995-02-08
ATE161500T1 (de) 1998-01-15

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