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DE1081214B - Method for producing a plastic casing closed on three sides - Google Patents

Method for producing a plastic casing closed on three sides

Info

Publication number
DE1081214B
DE1081214B DEL24380A DEL0024380A DE1081214B DE 1081214 B DE1081214 B DE 1081214B DE L24380 A DEL24380 A DE L24380A DE L0024380 A DEL0024380 A DE L0024380A DE 1081214 B DE1081214 B DE 1081214B
Authority
DE
Germany
Prior art keywords
producing
film
sides
plastic casing
casing closed
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.)
Pending
Application number
DEL24380A
Other languages
German (de)
Inventor
Walter Lennartz
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
Priority to DEL24380A priority Critical patent/DE1081214B/en
Publication of DE1081214B publication Critical patent/DE1081214B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45CPURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C11/24Etuis for purposes not covered by a single one of groups A45C11/02 - A45C11/22, A45C11/26, A45C11/32 - A45C11/38
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45CPURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C3/00Flexible luggage; Handbags
    • A45C3/001Flexible materials therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/135Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • B29C66/431Joining the articles to themselves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Making Paper Articles (AREA)

Description

Verfahren zum Herstellen einer dreiseitig geschlossenen Hülle aus Kunststoff Die bekannten dreiseitig geschlossenen Hüllen aus Kunststoff, wie sie beispielsweise aus durchsichtigen Weichfolien für Ausweispapiere, als Dokumentenhüllen usw. verwendet werden, bestehen aus zwei Folienblättern, welche an den Rändern zweier Längs- und einer Querkante oder einer Längs- und zweier Querkanten durch sogenannte Kantenschweißnähte miteinander verschweißt sind. Auch ist es bekannt, dreiseitig geschlossene Hüllen aus Kunststoff aus einer einzigen Folie herzustellen, indem diese in der Mitte gefaltet und an den aufeinanderzuliegen kommenden Seitenkanten verschweißt wird, so daß ein Einsteckschlitz frei bleibt. Method for producing a shell closed on three sides Plastic The well-known three-sided closed sleeves made of plastic, like them for example, made of transparent soft foils for identity papers, as document envelopes etc. are used, consist of two sheets of film, which at the edges of two Longitudinal and one transverse edge or one longitudinal and two transverse edges through so-called Edge welds are welded together. It is also known to be three-sided manufacture closed plastic envelopes from a single film by these folded in the middle and on the side edges that come to lie on top of one another is welded so that an insertion slot remains free.

Bei diesen Hüllen ist der Nachteil vorhanden, daß die Haltbarkeit der Kantenschweißnähte zu gering ist. Denn bei der Hochfrequenzverschweißung der Kunststoffolien wirken sich die unvermeidbaren Stärkeschwankungen der Folie so aus, daß die Elektroden entsprechend den Stärkeschwankungen der Folie unterschiedlich tief einsinken. These cases have the disadvantage that durability the edge welds are too small. Because with the high-frequency welding of the Plastic foils, the unavoidable fluctuations in the thickness of the foil have an effect that the electrodes differ according to the thickness fluctuations of the film sink in deep.

- Der je nach Einsinktiefe der Elektrode sich ergebende mehr oder weniger harte Grat der Schweißnaht bewirkt Scherwirkung. Die gefährlichsten Stellen für Scherwirkung sind die Ecken der Kantenschweißnaht an der Einstecköffnung. Bei jedem Öffnen einer Hülle mit Kantenschweißnähten ergibt sich an den Enden der Einstecköffnung eine Keilwirkung, die auf die Kantenschweißnähte gerichtet ist. Reißt die Hülle an den Kantenschweißnähten der Einstecköffnung ein, dann ist die Hülle unbrauchbar, denn der einmal begonnene Riß setzt sich entlang der Kantenschweißnähte fort.- The more or more depending on the sinking depth of the electrode less hard burrs on the weld seam cause shear effects. The most dangerous places The corners of the edge weld seam at the insertion opening are for the shear effect. at every opening of an envelope with edge welds results at the ends of the insertion opening a wedge effect directed at the edge welds. Tear the shell at the edge welding seams of the insertion opening, then the cover is unusable, because the crack, once started, continues along the edge welds.

Gegenstand der Erfindung ist ein Verfahren zum Herstellen einer dreiseitig geschlossenen Hülle aus Kunststoff, welches bezweckt, die an der Einstecköffnung befindlichen Ecken der Kantenschweiß- oder auch der Kantenklebenähte zu überdecken und dadurch der Einstecköffnung eine erhöhte Sicherheit gegen Aufreißen an den Nähten und als weiteren Vorteil eine Verlängerung der Gebrauchsdauer der Hülle zu erreichen. The invention relates to a method for producing a three-sided closed sheath made of plastic, which is intended to be attached to the insertion opening to cover the corners of the edge welds or the edge bonded seams and thereby the insertion opening an increased security against tearing at the seams and as a further advantage to achieve an extension of the service life of the cover.

Nach dem Verfahren gemäß der Erfindung wird zunächst in den als Doppelblatt vorliegenden Folienzuschnitt quer in der Mitte der Einsteckschlitz so gestanzt, daß zwischen den beiden Enden des Schlitzes und den Außenkanten des Folienzuschnittes Stege verbleiben wie aus Fig. 1 der Zeichnung ersichtlich, in welcher mit 1 das Doppelblatt, mit 2 der Schlitz und mit 3 die Stege bezeichnet sind. According to the method according to the invention is first in the as a double sheet The present film cut is punched across the middle of the insertion slot so that that between the two ends of the slot and the outer edges of the foil blank Bars remain as can be seen from Fig. 1 of the drawing, in which with 1 the Double sheet, with 2 the slot and 3 with the webs are designated.

Das Ausstanzen des Doppelblattes 1 wie des Schlitzes 2 kann in einem Arbeitsgang erfolgen. The punching out of the double sheet 1 as the slot 2 can be done in one Operation.

Hierauf wird die Folie am Einsteckschlitz zusammengefaltet und in üblicher Weise auf den drei offenen Seiten, z. B. durch eine Schweißnaht 4, verbunden, wie aus Fig. 2 ersichtlich, was wieder in einem Arbeitsgang ausgeführt werden kann. An Stelle einer Schweißnaht kann auch eine Klebenaht vorgesehen werden. The film is then folded up at the slot and inserted into usually on the three open sides, z. B. connected by a weld 4, as can be seen from FIG. 2, which can again be carried out in one operation. Instead of a weld seam, a glued seam can also be provided.

Die Verwendung einer einzigen Folie und deren Verarbeitung gemäß dem Verfahren erleichtert nicht nur die Herstellung der Hülle, sondern vermeidet überhaupt die Bildung von Ecken jeglicher Art, weil die Schlitzenden nicht bis zu den Nähten sich erstrecken und außerdem an den Stegen 3 entsprechend ausgerundet sind, wie in Fig. 1 dargestellt. Dadurch übertragen sich die beim Herausziehen oder Einschieben der Papiere oft unvermeidlichen Zerrkräfte nicht auf spitz zulaufende Ecken, sondern verteilen sich auf eine Rundung und verhindern ein Ein-oder Aufreißen der benachbarten Nahtenden. The use of a single film and its processing according to The process not only facilitates the production of the casing, but also avoids it at all the formation of corners of any kind because the slot ends are not up to the seams extend and also rounded at the webs 3 accordingly are as shown in FIG. As a result, they are transmitted when pulling out or Pushing in the papers often unavoidable pulling forces not tapering to a point Corners, but are distributed over a curve and prevent tearing or tearing the adjacent seam ends.

Claims (1)

PATENTANSPRUCH Verfahren zum Herstellen einer dreiseitig geschlossenen Hülle aus Kunststoff durch Falten einer auf Maß zugeschnittenen Folie und Verschweißen oder Verkleben der Folienränder unter Freilassung eines Einsteckschlitzes, dadurch gekennzeichnet, daß in die Folie vor dem Falten der Einsteckschlitz gestanzt und die Folie vom gestanzten Einsteckschlitz aus ge faltet wird. PATENT CLAIM Method for producing a three-sided closed Sheath made of plastic by folding a cut-to-size film and welding or gluing the edges of the film, leaving an insertion slot free, thereby characterized in that the insertion slot is punched and in the film before folding the film is folded from the punched insertion slot. In Betracht gezogene Druckschriften: USA.-Patentschnft Nr. 2 508 962; französische Patentschrift Nr. 956 976. References contemplated: U.S. Patent No. 2,508 962; French patent specification No. 956 976.
DEL24380A 1956-03-17 1956-03-17 Method for producing a plastic casing closed on three sides Pending DE1081214B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL24380A DE1081214B (en) 1956-03-17 1956-03-17 Method for producing a plastic casing closed on three sides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL24380A DE1081214B (en) 1956-03-17 1956-03-17 Method for producing a plastic casing closed on three sides

Publications (1)

Publication Number Publication Date
DE1081214B true DE1081214B (en) 1960-05-05

Family

ID=7263061

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL24380A Pending DE1081214B (en) 1956-03-17 1956-03-17 Method for producing a plastic casing closed on three sides

Country Status (1)

Country Link
DE (1) DE1081214B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19744595A1 (en) * 1997-10-09 1999-04-15 Hetzel Gmbh & Co Kg Manufacturing process for laminated plastic film wallet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR956976A (en) * 1950-02-10
US2508962A (en) * 1945-06-23 1950-05-23 Moore George Arlington Container

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR956976A (en) * 1950-02-10
US2508962A (en) * 1945-06-23 1950-05-23 Moore George Arlington Container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19744595A1 (en) * 1997-10-09 1999-04-15 Hetzel Gmbh & Co Kg Manufacturing process for laminated plastic film wallet

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