EP0879152B1 - Procede et machine de fixation d'une bande elastique sur une pochette de classement et la pochette obtenue par ce procede - Google Patents
Procede et machine de fixation d'une bande elastique sur une pochette de classement et la pochette obtenue par ce procede Download PDFInfo
- Publication number
- EP0879152B1 EP0879152B1 EP97902416A EP97902416A EP0879152B1 EP 0879152 B1 EP0879152 B1 EP 0879152B1 EP 97902416 A EP97902416 A EP 97902416A EP 97902416 A EP97902416 A EP 97902416A EP 0879152 B1 EP0879152 B1 EP 0879152B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elastic band
- cover
- orifices
- threading
- band
- 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
Links
- 238000000034 method Methods 0.000 title claims description 16
- 238000003466 welding Methods 0.000 claims description 11
- 239000004743 Polypropylene Substances 0.000 claims description 9
- -1 polypropylene Polymers 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
- B42F13/00—Filing appliances with means for engaging perforations or slots
- B42F13/0006—Covers for loose-leaf binders
- B42F13/0026—Covers for loose-leaf binders with locks or closures
Definitions
- the invention relates to a method for fixing the ends. a flexible elastic band in tension on a pocket of classification in order to lock the closure thereof, as well as a machine for implementing said method and the cover thus produced.
- the classification folder concerned is made of a semi-rigid plastic sheet which, in the open position, comes in a form usually rectangular and consists of two covers linked to each other by at least one line of folding allowing the flap of a cover on the other.
- This sheet can also have a second line folding thus delimiting a back between the two blankets.
- each of the covers can have one or more side or end flaps.
- One of the covers of the cover carries the elastic band and, for this purpose, has holes at the through which the elastic band is threaded.
- the cover has two substantially openings equidistant from the corners of the cover, called orifices of passage. Furthermore, along the two edges of the cover adjacent to the free edge are provided two so-called fixing holes, generally symmetrical to the through holes relative to the angle bisector of the corners of the cover.
- These holes are intended to accommodate an elastic band flexible so that once the pouch is closed, that is to say the carrier cover of the flexible strip elastic folded over the second cover, said band appears at each corner of said cover between a through hole and a fixing hole and allows the locking of the pocket closure.
- this elastic band is carried out in the manner following: a first end of the strip is introduced through one of the fixing holes from the inside of the cover to its side outside, then this end of the strip is introduced through the adjoining passage opening so that the elastic band extends transversely on the face outside between the introduction orifice and the passage. Then the elastic band is introduced into the second passage opening from the inner face to the outside face of the cover from where it is introduced then through the second fixing hole from the outside face towards the inside face of the cover. The ends of said strip are then fixed on the blanket.
- Patent FR-B-2 503 803 proposes a method of fixing automatic ends of a flexible strip by rivets in the fixing holes. This process uses to a system of mechanical clamps which allow the introduction of the ends of the flexible elastic band through the passage openings and the supply of said ends to the fixing holes where the end of the strip is mechanically folded down when the rivet is installed, which allows its fixing.
- the invention proposes a method for fixing the ends of an elastic band on a blanket of pocket in which threading of said strip through passage and fixing holes provided in the cover can be achieved mechanically and in which fixing the ends of the elastic band place can be performed without the need to use a rivet or any other complementary element.
- the invention relates to a method of fixing the ends of an elastic band to a plastic pouch of the type comprising two covers linked together by at least one line of folding, said elastic band constituting the means of locking of the pocket closure by flap of a cover on the other, characterized in that the fixing of the ends of the elastic band is made by ultrasonic welding, the elastic band comprising a suitable material to be ultrasonically welded to the material constituting the cover.
- the pouch is made of polypropylene.
- the elastic band consists of at least at least one strip or thread wrapped in polypropylene.
- the invention also relates to a machine for setting process work and a pocket in which the tape elastic is fixed on one of the covers of the pocket by ultrasonic welding.
- the fixing of a strip is carried out elastic as a means of locking the closure a file pocket.
- This pocket consists a generally rectangular polypropylene sheet that a fold line separates into two covers foldable one over the other and one of which can be extended by an end flap.
- One of the covers not provided with a flap of end extension, has two through holes A and B along its longitudinal free edge as well as a orifice C, D said of fixing located along each edge lateral of said cover as is well known.
- the machine shown in Figure 1 comprises, of preferably a support on which the cover 4, guide means suitable for guiding the elastic band, brought by a pair of rollers 2, to the through orifice A from a first face of the cover 4 towards the second side then through the orifice B of the second face towards the first face of the cover, a device for cutting the elastic band 1, supply means suitable for bringing the ends 1 ', 1' ' from the elastic band 1 to the fixing holes C, D through which the ends are threaded and means suitable for securing said ends by ultrasonic welding.
- Cover 4 provided with fixing holes C, D and passage A, B is placed on the support having a lower face and an upper face.
- the face lower corresponds to the outside of the cover 4 and the upper face corresponds to the inner face of cover 4, when the cover is closed.
- the means for guiding the elastic band 1 are constituted by a suction channel through which the elastic band 1 is sucked.
- the channel has a first section 5 for guiding the elastic band 1 along the outside of the cover 4 to first passage opening A, a second section 6 guiding, along the inside of the cover 4, the elastic band 1 from said first opening of passage A to the second passage orifice B and a third section 7 guiding the elastic band 1 again along the outside of the cover 4. So, to go from the first section 5 to the second section 6 of said suction channel, the elastic band 1 is guided through the first passage opening A and to pass from the second section 6 to the third section 7 of the said channel, the elastic band 1 is guided through the second passage opening B.
- the elastic band 1 is sucked into the suction channel until its leading free end 1 'reaches the end of the channel 7. Clamping rods 9 are then provided to hold elastic band 1 in place while a cutting device 3, provided at the entrance to the channel suction is activated and creates the second 1 '' end of band 1.
- means are provided to guide the said ends 1 'and 1' 'of the elastic band 1 through the fixing holes C and D from the outside of the cover 4 towards its inner face.
- these means are constituted by compressed air nozzles.
- the 1 'and 1' 'ends of the elastic band are then folded down and ultrasonically welded on the inside of cover 4 using two welding heads ultrasound (not shown).
- the pouch being made of polypropylene
- the elastic band 1 consists of at least one strip or wire wrapped in polypropylene to allow ultrasonic welding on said cover.
Description
Claims (13)
- Procédé de fixation des extrémités d'une bande élastique (1) sur une pochette en matière synthétique du type comportant deux couvertures reliées entre elle par au moins une ligne de pliage, ladite bande élastique (1), constituant le moyen de verrouillage de la fermeture de ladite pochette par rabat d'une couverture sur l'autre, étant mise en place sur une couverture (4) pourvue d'orifices de passages (A, B) et de fixation (C, D) de ladite bande (1)
caractérisé en ce que la fixation des extrémités (1', 1'') de la bande élastique (1) sur la couverture (4) est réalisée par soudage par ultrasons, la bande élastique (1) comprenant un matériau propre à être soudé par ultrasons sur la matière constitutive de la pochette. - Procédé selon la revendication 1,
caractérisé en ce que la pochette est en polypropylène. - Procédé selon la revendication 2,
caractérisé en ce que la bande élastique (1) est constituée d'au moins une bande ou de fils enrobés dans du polypropylène. - Procédé selon l'une des revendications 1 à 3,
caractérisé en ce qu'il comporte également :la mise en place de la bande élastique (1) sur la couverture (4), une extrémité menante (1') de ladite bande élastique (1) étant guidée au travers des orifices de passage (A, B) par aspiration,la coupe de la bande élastique (1) de manière à former une seconde extrémité (1''),l'amenée des extrémités (1', 1'') de la bande (1) en regard des orifices de fixation (C, D), etleur mise en place sur une face de la couverture (4) afin d'y être fixées par soudage par ultrasons. - Machine de mise en oeuvre du procédé selon l'une des revendications 1 à 4,
caractérisée en ce qu'elle comporte :un support sur lequel est mis en place la couverture (4) pourvue des orifices de passage (A, B) et de fixation (C, D),des moyens de guidage (5, 6, 7) propres à guider une bande élastique (1) au travers de l'orifice (A) depuis une première face de la couverture (4) vers la seconde face de ladite couverture (4) puis au travers de l'orifice (B) de ladite seconde face vers la première face,un dispositif de coupe (3) de la bande élastique (1),des moyens d'amenée propres à amener les extrémités (1', 1'') de la bande élastique (1) vers les orifices de fixation (C, D) au travers desquels les extrémités (1', 1'') sont enfilées, etdes moyens propres à assurer la fixation desdites extrémités par soudage par ultrasons. - Machine selon la revendication 5,
caractérisée en ce que les moyens de guidage sont constitués par un canal d'aspiration au travers duquel la bande élastique (1) est aspirée, ledit canal d'aspiration comportant une première section (5) guidant la bande élastique (1) le long d'une face (4a) de la couverture (4) jusqu'au premier orifice de passage (A), une deuxième section (6) guidant, le long de la seconde face (4b) de la couverture (4), la bande élastique (1) depuis ledit premier orifice de passage (A) jusqu'au second orifice de passage (B) et une troisième section (7) guidant la bande élastique (1) de nouveau le long de la première face (4a) de la couverture (4) de telle sorte qu'entre la première section (5) et la deuxième section (6) dudit canal, la bande élastique (1) est guidée au travers du premier orifice de passage (A) et qu'entre la deuxième section (6) et la troisième section (7) dudit canal, la bande élastique (1) est guidée au travers du second orifice de passage (B). - Machine selon l'une des revendications 5 et 6,
caractérisée en ce que le dispositif de coupe (3) disposé à l'entrée du canal d'aspiration. - Machine selon l'une des revendications 5 à 7,
caractérisée en ce que les moyens d'amenée des extrémités (1', 1'') de la bande élastique (1) en regard des orifices de fixation (C, D) sont constitués par la première et la troisième sections (5, 7) du canal d'aspiration dont les extrémités en regard des orifices de passage (A, B) sont fixes tandis que leurs extrémités opposées pivotent autour de l'axe passant au travers desdits orifices de passage (A, B) jusqu'à ce qu'elles soient en regard des orifices de fixation (C, D). - Machine selon la revendication 8,
caractérisée en ce que des moyens sont prévus pour guider lesdites extrémités (1', 1'') au travers des orifices de fixation (C, D). - Machine selon la revendication 9,
caractérisée en ce que lesdits moyens sont constitués par des buses à air comprimé. - Machine selon l'une des revendications 5 à 10,
caractérisé en ce que les moyens de soudage par ultrasons sont constituées par deux têtes de soudage par ultrasons permettant également de rabattre les extrémités (1', 1'') sur la face intérieure de la couverture (4) sur laquelle elles doivent être soudées. - Pochette de classement en matière synthétique du type comportant deux couvertures reliées entre elles par au moins une ligne de pliage, une bande élastique (1) constituant le moyen de verrouillage de la fermeture de ladite pochette par rabat d'une couverture sur l'autre, ladite bande étant mise en place sur une des couvertures (4) pourvue d'orifices de passages (A, B) et de fixation (C, D) de ladite bande (1),
caractérisée en ce que les extrémités (1', 1'') de la bande élastique (1) sont fixées sur la couverture (4) par soudage par ultrasons. - Pochette selon la revendication 12,
caractérisée en ce que la pochette étant en polypropylène, la bande élastique est constituée d'au moins une bande ou de fils enrobés dans du polypropylène.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9601298 | 1996-02-02 | ||
FR9601298A FR2744421B1 (fr) | 1996-02-02 | 1996-02-02 | Procede et machine de fixation d'une bande elastique sur une pochette de classement et la pochette obtenue par ce procede |
PCT/FR1997/000192 WO1997028009A1 (fr) | 1996-02-02 | 1997-01-31 | Procede et machine de fixation d'une bande elastique sur une pochette de classement et la pochette obtenue par ce procede |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0879152A1 EP0879152A1 (fr) | 1998-11-25 |
EP0879152B1 true EP0879152B1 (fr) | 1999-10-13 |
Family
ID=9488788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97902416A Expired - Lifetime EP0879152B1 (fr) | 1996-02-02 | 1997-01-31 | Procede et machine de fixation d'une bande elastique sur une pochette de classement et la pochette obtenue par ce procede |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0879152B1 (fr) |
DE (1) | DE69700623D1 (fr) |
FR (1) | FR2744421B1 (fr) |
IL (1) | IL125600A0 (fr) |
PL (1) | PL328088A1 (fr) |
WO (1) | WO1997028009A1 (fr) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR868238A (fr) * | 1939-12-20 | 1941-12-24 | Portefeuille classeur avec fermeture à cordon élastique | |
FR2428514A1 (fr) * | 1978-06-13 | 1980-01-11 | Doret Sa Ets | Procede d'assemblage par soudure haute frequence d'au moins deux elements non soudables en eux-memes en haute frequence, ainsi que le produit obtenu |
-
1996
- 1996-02-02 FR FR9601298A patent/FR2744421B1/fr not_active Expired - Fee Related
-
1997
- 1997-01-31 IL IL12560097A patent/IL125600A0/xx unknown
- 1997-01-31 WO PCT/FR1997/000192 patent/WO1997028009A1/fr active IP Right Grant
- 1997-01-31 PL PL97328088A patent/PL328088A1/xx unknown
- 1997-01-31 EP EP97902416A patent/EP0879152B1/fr not_active Expired - Lifetime
- 1997-01-31 DE DE69700623T patent/DE69700623D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IL125600A0 (en) | 1999-03-12 |
WO1997028009A1 (fr) | 1997-08-07 |
FR2744421B1 (fr) | 1998-03-20 |
EP0879152A1 (fr) | 1998-11-25 |
PL328088A1 (en) | 1999-01-04 |
FR2744421A1 (fr) | 1997-08-08 |
DE69700623D1 (de) | 1999-11-18 |
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