DE812952C - To accommodate documents etc. The like. Serving sleeve made of weldable plastic - Google Patents
To accommodate documents etc. The like. Serving sleeve made of weldable plasticInfo
- Publication number
- DE812952C DE812952C DEK299A DEK0000299A DE812952C DE 812952 C DE812952 C DE 812952C DE K299 A DEK299 A DE K299A DE K0000299 A DEK0000299 A DE K0000299A DE 812952 C DE812952 C DE 812952C
- Authority
- DE
- Germany
- Prior art keywords
- plastic
- sleeve made
- weldable plastic
- accommodate documents
- seams
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C3/00—Flexible luggage; Handbags
- A45C3/02—Briefcases or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General 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
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Description
Zur Aufnahme von Schriftstücken u. dgl. dienende Hülle aus verschweißbarem Kunststoff Es sind Hüllen insbesondere Ausweishüllen, Buchhüllen, Brieftaschen 0. dgl., aus verschweißbarem Kunststoff, also z. B. aus Polyamid, Polyvinylchlorid o. dgl., bekannt, bei denen die dem Aufbau bzw. dem Zusammenhalt dienenden Nähte als Fadennähte ausgebildet sind. Hierbei ist aber nachteilig, daß der Kunststoff bei der Bildung der Nähte durch die Nadel gelocht wird. Im Gegensatz zu Textilien schließt sich nämlich bei Kunststoffolien das Nadelloch nach dem Durchstich der Nadel nicht wieder. Die Kunststoffolie reißt daher leicht in der Naht aus.To accommodate documents and the like, it is made of weldable material Plastic Covers, in particular, ID card covers, book covers, wallets 0. Like., Made of weldable plastic, so z. B. made of polyamide, polyvinyl chloride o. The like. Known, in which the construction or the cohesion serving seams are designed as thread seams. The disadvantage here is that the plastic pierced through the needle in the formation of the sutures. In contrast to textiles In the case of plastic films, the needle hole closes after the puncture Needle not again. The plastic film therefore tears out easily in the seam.
Man hat auch schon versucht, bei derartigen Hüllen den Zusammenhalt durch besonderes Falzen oder Kleben zu erreichen. Beides konnte aber nicht befriedigen. Durch das Falzen wird der Rand der Hüllen so verstärkt, daß gerade die für den fraglichen Kunststoff erreichbare Eigenschaft, die Weichheit und Schmiegsamkeit. da zwecklos, nicht zur Anwendung gebracht wurde. Geklebte Nähte gehen aber leicht auf, weil der Klebstoff auf der unporösen, sehr glatten Oberfläche des Kunststoffes nicht genügend eindringen kann und nicht haftet. Aus diesem Grunde müssen auch die Klebnähte sehr viel breiter sein als die geschweißten, was wiederum unschön wirkt, Materialverschwendung bedeutet und die Hülle versteift. Attempts have also been made to maintain cohesion with such covers to be achieved by special folding or gluing. But neither could satisfy. By folding the edge of the envelope is reinforced so that just the one in question Plastic achievable property, the softness and pliability. there pointless, was not applied. Glued seams open easily because of the Insufficient adhesive on the non-porous, very smooth surface of the plastic can penetrate and is not liable. For this reason, the adhesive seams also have to be very be much wider than the welded ones, which again looks unattractive, wasted material means and stiffens the shell.
Erfindungsgemäß wird nunmehr das Ziel einer weichen, schmiegsamen und doch dauerhaften Hülle dadurch erreicht, daß man sich der Eigenschaft der Verschweißbarkeit der warmverformbaren Kunststoffe bedient, um den Aufbau der Hülle durchzuführen. Die Materialien der zu vereinenden, unmittelbar aufeinanderliegenden Teile der Hülle laufen hei entsprechender Erwärmung bis zur Fließgrenze auf Nahtbreite an ihren einander zugekehrten Flächen ineinander über und verbinden sich vollkommen miteinander.' Die Erwärmung kann auf rein mechanischem oder auch auf elektrischem Wege erfolgen. Die Nähte sind unzerreißbar. According to the invention, the goal is now a soft, pliable and yet durable shell achieved by taking the property of weldability the thermoformable plastics used to carry out the construction of the shell. The materials of the parts of the shell that are to be united and lie directly on top of one another run with appropriate heating up to the yield point on their seam width facing surfaces into each other and connect perfectly with each other. ' the Heating can be done purely mechanically or electrically. the Seams are unbreakable.
Praktischerweise bedient man sich dabei Materialien, die weich und schmiegsam sind, so daß sich die Hüllen leicht, z. B. den Körperformen des Trägers, anpassen und nicht brechen. It is practical to use materials that are soft and are pliable, so that the casings are easy, e.g. B. the body shape of the wearer, adapt and not break.
Je nach dem Verwendungszweck der Hülle wählt man transparenten oder undurchsichtigen Kunststoff. Depending on the intended use of the cover, you can choose transparent or opaque plastic.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK299A DE812952C (en) | 1949-10-30 | 1949-10-30 | To accommodate documents etc. The like. Serving sleeve made of weldable plastic |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK299A DE812952C (en) | 1949-10-30 | 1949-10-30 | To accommodate documents etc. The like. Serving sleeve made of weldable plastic |
Publications (1)
Publication Number | Publication Date |
---|---|
DE812952C true DE812952C (en) | 1951-09-06 |
Family
ID=7208393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK299A Expired DE812952C (en) | 1949-10-30 | 1949-10-30 | To accommodate documents etc. The like. Serving sleeve made of weldable plastic |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE812952C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073698B (en) * | ||||
DE875394C (en) * | 1951-11-20 | 1954-03-22 | Walter Lennartz | Cover made of translucent, weldable plastic film |
DE1061491B (en) * | 1956-10-20 | 1959-07-16 | Mellabora G M B H | Protective document folder in book form, especially for use without removing the stapled documents |
DE102015121129A1 (en) | 2014-12-09 | 2016-06-09 | Erdal Celenk | Case for passports, identity cards and similar documents in the form of cards |
-
1949
- 1949-10-30 DE DEK299A patent/DE812952C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073698B (en) * | ||||
DE875394C (en) * | 1951-11-20 | 1954-03-22 | Walter Lennartz | Cover made of translucent, weldable plastic film |
DE1061491B (en) * | 1956-10-20 | 1959-07-16 | Mellabora G M B H | Protective document folder in book form, especially for use without removing the stapled documents |
DE102015121129A1 (en) | 2014-12-09 | 2016-06-09 | Erdal Celenk | Case for passports, identity cards and similar documents in the form of cards |
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