EP0356850B1 - Pince, déstinée notamment à l'emballage et procédé pour fermer des sacs au moyen de cette pince - Google Patents

Pince, déstinée notamment à l'emballage et procédé pour fermer des sacs au moyen de cette pince Download PDF

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Publication number
EP0356850B1
EP0356850B1 EP89115333A EP89115333A EP0356850B1 EP 0356850 B1 EP0356850 B1 EP 0356850B1 EP 89115333 A EP89115333 A EP 89115333A EP 89115333 A EP89115333 A EP 89115333A EP 0356850 B1 EP0356850 B1 EP 0356850B1
Authority
EP
European Patent Office
Prior art keywords
clip
arms
clips
arm
seal
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
EP89115333A
Other languages
German (de)
English (en)
Other versions
EP0356850A3 (en
EP0356850A2 (fr
Inventor
Arnold Zimmermann
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
Application filed by Individual filed Critical Individual
Publication of EP0356850A2 publication Critical patent/EP0356850A2/fr
Publication of EP0356850A3 publication Critical patent/EP0356850A3/de
Application granted granted Critical
Publication of EP0356850B1 publication Critical patent/EP0356850B1/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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/04—Applying separate sealing or securing members, e.g. clips
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/1658—Elements for flattening or folding the mouth portion
    • B65D33/1675—Hinged clips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/15—Bag fasteners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/15—Bag fasteners
    • Y10T24/153—Plastic band bag tie
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/42—Independent, headed, aperture pass-through fastener

Definitions

  • the invention relates to a clip, in particular for packaging purposes, with two arms molded from plastic, which in the closed state are connected to one another at two points and form at least one opening between them for enclosing a packaging item or container, the hinge at one of the points , the two arms are pivotally connected to each other for opening or closing, and in the area of the other point, the closing end, a part of an openable and reclosable closing member and a seal are arranged on the arms.
  • Such clips are e.g. known from US-A-3 818 553. Resealable clips of this type have relatively complicated shaped locking members, both hands of which are required to open.
  • the clip is equipped according to the invention with the features defined in the patent claims.
  • the clip once opened, can be closed again by simply pressing on the two clip arms because of the dimensionally stable design of the clip arms, including the two interacting parts of the closing member. This can easily be done with one hand.
  • the attachment of the clip is also made easier by simply swiveling the two dimensionally stable clip arms mechanically around the gathered neck of the bag.
  • a corresponding clip pliers in which the clip can be inserted in the open position, has two jaws that can be pivoted relative to one another, the pivot axes of which essentially coincide with the pivot axis of the inserted clip.
  • the clip pliers can form part of the gathering mechanism for the neck of bags to be closed.
  • the clip according to the invention can be used as such or else as a base module with different shapes.
  • the projections can in particular be designed as tongues which form an opening aid.
  • FIGS. 1 to 6 As a single clip and in FIGS. 7 and 8 in conjunction with other corresponding clips.
  • This clip 1 is designed as a guarantee closure, which is shown in FIG. 6 in the closed state before its first opening.
  • the clip 1 is constructed from two arms 2 and 3, which are pivotally connected to one another via a hinge 4.
  • the hinge 4 can be designed in various ways, for example as a film hinge, as a self-closing hinge with a train that interacts with a film hinge or as a catch that acts as a hinge.
  • the hinge 4 is designed as a simple film hinge, which is injection-molded in one piece with the two arms 2, 3 from plastic.
  • the two arms 2 and 3 are essentially dimensionally stable, so that they form a defined opening 5 (see FIG. 6) for receiving the end of the bag pack.
  • the shape of the two arms can be adapted to the size of the bag package to be closed, so that an optimal hold is created which prevents the clip 1 from being pulled off over the end of the bag. This is also prevented by stiffening ribs 6, which are formed on the inside of the arms 2 and 3 and press together as a bag material when the clip is closed.
  • closure members 10, 10 ' which can be opened and closed are provided on the inner side of the predetermined breaking zone 7 in the clip according to the invention.
  • a resilient projection 10 is formed on an arm 2 and engages in a corresponding recess 10 'on the other arm 3.
  • the snap connection formed in this way can be easily opened and closed by hand. When closed, the clip holds the end of the bag together.
  • the closure members are molded onto the dimensionally stable arms 2, 3. They can therefore be closed or opened by simply compressing or pulling these arms 2, 3 around the hinge 4.
  • a self-closing hinge 4 can be provided which, in addition to the film hinge, has a pull which presses the two halves against one another when a certain dead center is exceeded during the pivoting. Finally, a corresponding effect can be achieved by a hinge that has to be swung open against an elastic closing force and always returns to the closed starting position.
  • the arms 2, 3 are preferably trapezoidal in the exemplary embodiment described. This offers the advantage that printable outer surfaces are formed, which can be provided with brand names and / or expiry dates, for example. Furthermore, these areas advantageous for mechanically closing the clips 1.
  • the parts of a guarantee closure are also attached to the ends of the arms.
  • the seal parts 9, 9 ' are integrally formed on the closure parts 10, 10' of the clip arms 2, 3 each via a predetermined breaking or cutting zone 7.
  • the cross section of the predetermined breaking or cutting zone 7 is dimensioned in such a way that the plastic can be cut through without any special force.
  • the predetermined breaking zone 7 is formed in the present embodiment by two webs 8 with reduced wall thickness.
  • the seal parts 9, 9 'formed on the outside at the predetermined breaking point 7 need not be of identical design, as can be seen from FIGS. 1, 3 and 5.
  • the seal parts 9, 9 ' have organs which produce a manually undetachable connection between them in the closed state. In the present exemplary embodiment, they are connected to one another by ultrasound welding when they are closed, the cross sections shown in FIGS. 3 and 5 intermeshing by fusing. In the closed state, as can be seen in FIG. 6, the two seal parts 9, 9 'are inseparably combined into one part.
  • another, non-detachable connection e.g. be provided by barbs, gluing, riveting or caulking, as will be explained in more detail.
  • the tab therefore serves as a seal, the presence of which guarantees that the clip has not yet been opened. If the seal is missing, this is a sign that the packaging has already been tampered with has been. Packaging with a missing seal can easily be recognized by the sales staff and taken out of circulation.
  • the two arms 2, 3 remain from the clip 1, as shown in FIG. 6 to the right of the dashed line. These two arms 2, 3 can now be opened manually by pivoting, removed from the end of the bag and used to reclose them.
  • the clips 1 Before being attached to bag packs, the clips 1 according to the present exemplary embodiment are combined to form a band 11, a piece of which is shown in FIG. 7.
  • clips 1 are separably connected to one another. In the example described, this is achieved in that the clips are sprayed onto two parallel threads 12 during the injection molding, which connect the clips 1 to one another. These threads 12 are arranged in the area of the outer trapezoid corners of the halves 2, 3, as can be seen from FIGS. 1 and 2.
  • the connection between the individual clips could also be made by means of molded plastic webs or the like.
  • threads 12 has the advantage that the threads pass through injection molding can be guided, wherein in each case a whole band section with several clips 1 is injection molded and pushed out of the mold on the threads, after which a further band section is sprayed onto the same threads.
  • the band 11 thus formed can e.g. be rolled up.
  • the individual clips 1 are shaped so that they are stackable, i.e. e.g. center when rolling up and form a roll of balanced thickness across the entire width. 8 two layers from a roll or a stack are shown schematically.
  • the frontmost clip of a tape is cut off, placed around the end of the bag and finally closed.
  • the clip tapes can also be designed in other ways, e.g. by connecting several clips lengthways. Instead of in the form of rolls, the tapes can also be manufactured and processed in rows or stacks.
  • an extruded profile can also be assumed, which may be pre-perforated and then separated into individual clips on the attachment device.
  • the previously described embodiment of the clip which has been completely preformed in plastic, has the advantage, in addition to the advantages already mentioned, that it does not need to be deformed by the attachment device when it is attached. Its stable, trapezoidal arms clearly and predictably define the opening of the clip. This allows the clip shape to be adjusted very precisely to the respective bag pack.
  • the attachment device is also simplified.
  • curved or polygonal arms can also be used instead of the trapezoidal arms.
  • the two arms 2, 3 need not be shaped identically.
  • Figures 9 to 11 show another embodiment of the seal parts 30, 30 '.
  • One of the two seal parts 30 ' has a plate 31 fastened at predetermined breaking points.
  • the two seal parts 30, 30 ' can be fixed to the clip arms 2, 3 or connected via additional predetermined breaking points 7, the clip in the latter case also being able to be opened by tearing off the hooked seal parts.
  • the clip can be closed again by the reclosable closure parts 10, 10 'on the base module.
  • FIG. 12 and 13 further versions are shown, which additional opening tabs 32, 32 'and. 33 33 '.
  • a clip is always shown in open and closed side view and in top view.
  • the dimensionally stable opening tabs are rigidly connected to the clip arms and arranged in a V-shape.
  • they are laterally offset.
  • Such offset tabs are easier to grasp and offer the advantage that they can be used as decorative elements, e.g. can be trained as stylized loop parts, clover leaf halves, heart halves etc.
  • Such rigid opening tabs have the advantage that they are easy to use with one hand. However, it is also possible to make the opening tabs flexible.
  • both the basic module of the clip ie the clip arms 2, 3 with locking parts and seal parts, can be used the possible opening tabs can be varied almost arbitrarily in design and arrangement.
  • the clip shapes shown are all suitable for production and processing in tape form, namely as a stack or rolls of tape. This simplifies both clip production and further processing. If the clips are made in bulk, they can be further processed by hand, i.e. attached to packs.
  • FIG. 14 shows a first embodiment of a clip machine, the drives, in particular a cam disk 200, only being shown schematically.
  • the bags 28 to be closed are fed on a straight 21 or a curved path 22, 22 'by means of a bucket elevator 213 or the like.
  • the independent (free-standing) bucket elevator is clocked and driven separately.
  • free-standing, clocking carousel bucket elevators are possible, which feed the bag on a curve 22 or 22 '. Solutions are also possible in which the clip machine and bucket elevator (straight or carousel) form one unit.
  • the machine described here allows the bag to be on the feed line or on the feed curve itself flatten, gather and clip, which guarantees a point-symmetrical bag closure. This is done in that flat holding flaps 23 and 24 close synchronously in axis 21 via a cam drive 25 and a fixed gearwheel 26 by means of racks 27 and flatten the bag material there.
  • a plate 227 supported by springs 228 can be embedded in the one flat holding flap 24, via which the bag ruffle quality can be influenced by changing the spring pressure and by choosing the material and design of the plate 227 in order to obtain an optimal large-angle ruffle.
  • a clip feed and singling unit 29 pushes the clip 1, which is separated and thus isolated from the clip band, into a clip pliers 212 in time via a plunger 210, during which a bag in bucket elevator 213 (regardless of the clip machine) is advanced by a clock 219.
  • the unit 29 has a separate drive. By advancing, cutting and inserting the clip in pliers 212 during the bucket elevator cycle, cycle time is saved on the main drive 214, which results in higher clip outputs.
  • the clip inserted in pliers 212 is moved by means of a cam drive 215 simultaneously with the synchronous moving together of the flat holding flaps 23/24 after the bucket elevator cycle onto the bag axis 21, together with a gatherer 217 attached to a common slide 216.
  • the bag flattened in the bag axis 21 is gathered symmetrically in the bag center 220 by means of cam drive 218/218 'by means of tongs 212 and rafters 217.
  • a rod 221 is advanced over the cam drive 224 by a pin 222, which at this point is in engagement with a pawl 223, which causes the tong halves to close 225/226 and thus closing the clip.
  • the two pliers halves are pivoted about a common pivot point, which coincides with the hinge 4 of the inserted clip 1.
  • the two dimensionally stable halves 2, 3 of the clip are held in the pliers halves 225, 226 and are pressed together in the area of the closure members with sufficient force so that they snap into place or the guarantee closure parts interlock (see FIG. 10).
  • the pliers are opened again by returning the cam drive 224.
  • the packer 212/217 and the slide 216 return to their original position; the clip cycle is finished.
  • the bag can be flattened according to the embodiment in FIG. 15 by means of a rounded plate 330 against a fixed, rounded plate 331 and gathering along a curve 32 by means of pliers 312 and rafters 317, the bag being fed on axis 31 done in a straight line. With this solution too, the bag is clipped into the center 320.
  • the clip described is particularly suitable for closing bag packs, but can also be used for fixing or clamping other objects.
  • the dimensionally stable arms 2, 3 can be adapted to the shape of these objects.
  • the clip has no metal parts, which in the case of pouch packaging allows the pre-packed pouch to pass through metal detectors.
  • the clip is injury-free in all its designs, with no sharp tips or corners protruding, and is light, i.e. can be opened and closed with one hand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Bag Frames (AREA)

Claims (11)

  1. Pince, en particulier pour emballage, composée de deux bras (2, 3) en plastique ayant des formes rigides et chacun une extrémité formant verrou (7 - 10, 9', 10') ainsi qu'une extrémité formant charnière (4)' les bras étant réunis à rotation du côté charnière et reliés l'un à l'autre à l'extrémité formant verrou lorsque le clip est en position fermée et formant une boucle pour enlacer le produit à emballer ou l'emballage, caractérisée en ce que chaque extrémité formant verrou possède un organe de verrouillage (10, 10') pouvant être ouvert et refermé ainsi qu'un organe de plombage (9, 9'), chaque organe formant verrou étant réuni de manière stable au bras correspondant, les deux organes formant verrou coopérant de manière à ne pouvoir être accouplés ou séparés que par rotation des deux bras, les organes de plombage étant agencés pour pouvoir être réunis de manière à former une liaison indécachetable des deux bras et comportant un ou plusieurs points de rupture devant être rompus lors de la première ouverture.
  2. Pince selon la revendication 1, caractérisée en ce que chacun des deux organes de plombage est fixé au bras correspondant par l'intermédiaire d'un point de rupture (7, 7'), les deux organes de plombage étant solidement réunis en leur position fermée, en laquelle ils forment un plomb de sécurité qui peut être détaché lors de l'ouverture.
  3. Pince selon la revendication 1, caractérisée en ce que les deux organes de plombage sont agencés de manière à ce qu'un composant central (31) du plombage se détache d'au moins un bras lors d'une ouverture forcée, de façon à ce que le composant détaché rende la manipulation visible.
  4. Pince selon la revendication 3, caractérisée en ce que le composant central (31) du plombage est relié à un bras par l'intermédiaire d'un ou de plusieurs points de rupture et qu'il est entrelacé avec l'autre bras de manière à ce que lors d'une ouverture forcée les points de rupture cèdent et que ceci annule l'entrelacement de façon à ce que le composant du plombage se détache de la pince.
  5. Pince selon une des revendications précédentes, caractérisée en ce qu'une languette (19; 32, 32') facilitant l'ouverture est agencée à l'extrémité formant verrou de chaque bras et rigidement fixée à ce bras de manière à ce que chaque languette présente une portion dégagée de la portion correspondante de l'autre languette lorsque la pince est fermée.
  6. Pince selon une des revendications précédentes, caractérisée en ce que chaque bras (2, 3) possède une forme essentiellement trapézoïdale, semi-circulaire ou semi-elliptique.
  7. Pince selon une des revendications précédentes, caractérisée en ce que les bras ont une forme permettant d'empiler plusieurs pinces en position ouverte sans interstice notable entre elles.
  8. Pince selon une des revendications précédentes, caractérisée en ce que les côtés intérieurs des bras comportent des profils de renfort (6).
  9. Chaîne continue de pinces selon une des revendications précédentes, caractérisée en ce que chaque pince est reliée à une pince voisine par une liaison (12) détachable.
  10. Chaîne de pinces selon la revendication 9, caractérisée en ce que la liaison détachable est formée par au moins un fil (12) continu et pouvant être détaché, sur lequel les pinces sont formées par injection.
  11. Chaîne de pinces selon une des revendications 9 ou 10, caractérisée en ce qu'elle peut être enroulée sur elle-même pour former un rouleau.
EP89115333A 1988-08-30 1989-08-19 Pince, déstinée notamment à l'emballage et procédé pour fermer des sacs au moyen de cette pince Expired - Lifetime EP0356850B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3226/88 1988-08-30
CH3226/88A CH675869A5 (fr) 1988-08-30 1988-08-30

Publications (3)

Publication Number Publication Date
EP0356850A2 EP0356850A2 (fr) 1990-03-07
EP0356850A3 EP0356850A3 (en) 1990-05-16
EP0356850B1 true EP0356850B1 (fr) 1993-11-03

Family

ID=4251368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115333A Expired - Lifetime EP0356850B1 (fr) 1988-08-30 1989-08-19 Pince, déstinée notamment à l'emballage et procédé pour fermer des sacs au moyen de cette pince

Country Status (5)

Country Link
US (1) US5008980A (fr)
EP (1) EP0356850B1 (fr)
JP (1) JPH02180154A (fr)
CH (1) CH675869A5 (fr)
DE (1) DE58906090D1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224223A1 (de) * 1992-07-22 1994-01-27 Buchholtz Ulrich Gmbh & Co Verschlußband
DE4327064C3 (de) * 1993-08-12 2000-03-09 Poly Clip System Gmbh & Co Kg Kunststoff-Clip aus zwei Teilen
EP0712365B1 (fr) * 1993-08-12 1997-10-22 Poly-clip System GmbH & Co. KG Dispositif de fermeture d'une attache en plastique en deux parties
US5682649A (en) * 1996-08-02 1997-11-04 Lo; Luke Sealing clip strip structure
US6904646B2 (en) * 2002-09-13 2005-06-14 Kimberly-Clark Worldwide, Inc. Multi-part closure device
US6886982B2 (en) * 2002-09-13 2005-05-03 Kimberly-Clark Worldwide, Inc. Article of manufacture resulting from automated assembly of a multi-part closure device with a product
US6959523B2 (en) * 2002-09-13 2005-11-01 Kimberly-Clark Worldwide, Inc. Process for automating the attachment of a clip to a product
DE102006017537A1 (de) * 2006-04-13 2007-10-18 Poly-Clip System Gmbh & Co. Kg Verschlussklammer und Verfahren zu deren Herstellung
US11286081B2 (en) 2020-06-04 2022-03-29 Safeseal-Systems Self-sealing container
EP4161844A4 (fr) * 2020-06-04 2024-06-19 Safeseal-Systems Attache pouvant être fixée

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571861A (en) * 1968-11-26 1971-03-23 Famco Inc Bag closure means
US3621539A (en) * 1970-02-27 1971-11-23 Variform Plastics Inc Bag sealer
US3713622A (en) * 1971-02-26 1973-01-30 Amp Inc Closure device for flexible tubing
US3766925A (en) * 1971-05-25 1973-10-23 Eljay Hospital Prod Corp Surgical clamp with cam-action lever
US3818553A (en) * 1973-08-17 1974-06-25 R Parmenter Bag closure
US4296529A (en) * 1979-07-11 1981-10-27 Brown Stanley E Bag sealing device
AU544390B2 (en) * 1981-08-27 1985-05-23 Envopak Ltd. Disposable one-piece security sealing device
JPS602458A (ja) * 1983-06-15 1985-01-08 株式会社トスカ 封緘具とその製造方法
EP0139065A1 (fr) * 1983-10-20 1985-05-02 Christian Lavielle Dispositif pour réunir côte à côte et emprisonner des liens souples notamment des lacets
US4514882A (en) * 1983-10-26 1985-05-07 Christian Lavielle Device for retaining in side-by-side relationship flexible tying means such as shoelaces
SE441261B (sv) * 1984-03-26 1985-09-23 Jan Ingemar Neslund Pasklemma
EP0199729A1 (fr) * 1984-10-31 1986-11-05 BROWN, Christine C. Fermetures reutilisables et leur fabrication, et systemes d'emballage utilisant ces fermetures

Also Published As

Publication number Publication date
US5008980A (en) 1991-04-23
EP0356850A3 (en) 1990-05-16
CH675869A5 (fr) 1990-11-15
EP0356850A2 (fr) 1990-03-07
DE58906090D1 (de) 1993-12-09
JPH02180154A (ja) 1990-07-13

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