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
  • B65D27/00—Envelopes or like essentially-rectangular containers for postal or other purposes having no structural provision for thickness of contents
  • B65D27/32—Opening devices incorporated during envelope manufacture
  • B65D27/34—Lines of weakness

Definitions

• the present invention relates to an envelope, that is to say the classic paper receptacle used in sending any type of letter or document, which has been substantially perfected, specifically in order to facilitate the opening maneuver thereof, once it has been fulfilled. its role, as well as denouncing a fraudulent or unauthorized opening of the envelope itself, giving it the character of inviolability. BACKGROUND OF THE INVENTION
• the envelopes form a kind of rectangular bag, open on one of its sides, where a closing flap assisted by an adhesive strip is defined, which is sometimes wettable and in others it is contact, so that a Once the envelope has been conveniently closed, its opening by the recipient of the envelope is relatively problematic, since it must be done without risk of damage to its contents.
• a more advanced solution consists in, after selecting which is the opening edge of the envelope, conveniently fix a thread to it, which emerges slightly from one of its ends, so that the recipient of the envelope, without more than pulling from said free end of the thread, get the quick opening of it.
• This solution which is undoubtedly effective, presents, however, as a fundamental problem, the increased cost for the implementation of this additional means of opening.
• a care ⁇ s or traction of the closing flap allows it to detach from the back and therefore perform an authorization of internal documents without authorization. That is, in many cases the envelopes can be fraudulently opened and subsequently closed, without the recipient being aware of them.
• the envelope that the invention proposes has been conceived and structured in order to solve in a fully satisfactory manner the above-mentioned problem, so that, without the minimum impact on the cost of manufacturing it, it offers an extremely fast, simple opening system and effective, enabling the recipient to be aware if there has been fraudulent or unauthorized opening.
• the invention focuses on arranging in the body of the envelope, specifically under the closing flap thereof, a plurality of cuts independent of each other, that affect the gluing zone integrally and that define small bonding links, easily frangible, between them, so that pulling one of the ends of the closing flap, or the midpoint thereof, depending on the type of envelope , the opening is achieved by tearing it.
• the said cuts must be located immediately next to the free edge of the closing flap, so that in the opening maneuver the glued sector of the body of the The envelope is mostly fixed to the flap, and the tear maneuver is thus greatly favored.
• said cuts have been provided to be substantially oblique with respect to the free edge of the closure flap, defining on the back of the envelope a slightly broken tear line, which facilitates the tear maneuver .
• one of these cuts the one corresponding to the start of the opening maneuver, will be different from the others, specifically of greater amplitude, establishing this starting cut at one of the ends of the closing flap, when this it is rectilinear, at the midpoint of the same when said closing flap is angular free edge, according to the two conventional types of envelopes more usual.
• Figure 1 shows a rear view of a straight flap envelope, made in accordance with the improvements object of the present invention, which appears in an opening situation, the closing position having been represented therein, in a broken line. For your flap.
• Figure 2. Shows a similar view of the envelope of the previous figure, but now in a closed situation.
• Figure 3. Shows again the same envelope of Figure 2, in the initial opening situation.
• Figure 4. It shows again the envelope of the previous figures, in the limit situation of opening by tearing its flap.
• Figure 5 shows a representation similar to that of Figure 1 but corresponding to an envelope with a triangular flap, also made in accordance with the object of the present invention.
• Figures 6 to 8. They show the same details as Figures 2 to 4, but corresponding to envelope with triangular flap of figure 5.
• Figure 9. Shows a rear view of the envelope represented in Figure 1, but equipped in this case with the second wide cut that will determine the means of inviolability of the envelope, since an attempt to detach the closing flap from that end in which said cut is made, would carry the tear of the envelope along an irregular but practically transversal path.
• Figure 10. Shows the envelope of the previous figure in a closed situation.
• Figure 11. It shows the same envelope of Figures 9 and 10, in the initial situation of opening at both ends, the tearing being seen in one case through the alignment of cuts and in the other case the practically transverse tearing of the on.
• Figure 12 shows a rear view of an envelope with a triangular flap, analogous to that of Figure 5, with the two wide cuts of the ends corresponding to the two zones or strips in which the alignments of parallel cuts are made.
• Figure 13 It shows the envelope of the previous figure in the closing situation, the three arrows indicating the points or ends of which the closing flap can be pulled to perform the tear-open opening of the alignment of cuts or to produce the tear in a fraudulent opening attempt.
• PREFERRED EMBODIMENT OF THE INVENTION it can be seen how the envelope that is recommended adopts the configuration of any conventional envelope, materialized in a body 1 provided with a closure flap 2, of a straight or trapecial configuration, in which it defines a broad rectilinear edge 3, as shown in Figure 1, or materialized in a body 1 'assisted by a flap 2' of triangular configuration, determining a free angular edge 3 ', as seen in Figure 5, may be materialized with any other basic configuration, without affecting the essence of the invention, counting in any case in the vicinity of the free edge 3-3 'of its flap 2-2', with a strip of adhesive 4, which can be continuous as in the example of Figure 1 or fragmented in two symmetrical portions 4 'a
• the invention focuses on practicing on the reverse side of the envelope, which corresponds to reference 1 itself, a plurality of 5-5 'cuts, of small amplitude, which form an alignment parallel and very close to the imaginary line 6 of said receiving body 1 of the free edge 3-3 'of the flap 2-2' after the closure thereof.
• These cuts 5-5 ' preferably in an oblique arrangement, determine between them small, easily frangible junction ties 7 that make this alignment of cuts 5-5' a tear opening line, when pulled on the own flap 2-2 'fixed to the body 1 of the envelope in the previous closing operation thereof.
• an initial cut 8 is provided, located in correspondence with one of the ends of the flap 2 and which transversely affects the entire gluing area 9 through which the flap 2 is fixed to said body 1 by means of the adhesive strip 4, so that when it is pulled over this vertex of the flap 2, conveniently signaled by the arrow 10 that appears in figure 2, and specifically in the oblique direction adopted by said arrow, a progressive tear of the connection links 7 is achieved through the cuts 5, as shown Figure 3, until the total opening of the envelope as shown in Figure 4.
• the start cut 11 adopts an arched configuration and is placed in front of the center of the free edge 3 'of the flap, specifically between the two lateral alignments 5' of cuts, so that when the middle vertex of the flap is pulled, according to the arrow referenced with 12 in Figure 6, it is produced similar to the previous case, the tearing of the body 1 'of the envelope, in this case towards both sides and symmetrically, as shown in Figure 7, until the envelope is fully opened, as shown in Figure 8.
• the envelope 1 in question in addition to all the features described for the envelope of figures 1 to 4, has the peculiarity that in the opposite part of the gluing area 9 where the tear start cut 8 is made, it has a second cut 8a that will determine a means of inviolability of the envelope, since when the flap 2 is carefully pulled through the vertex in which the arrow 10a has been represented, in a fraudulent opening attempt, then the tearing of the envelope occurs as depicted in Figure 11.
• the envelope 1 'in addition to the tear start cut 11 has a pair of cuts 11' at the ends of the gluing areas 9 ', so that if it is drawn from the central area or vertex, as indicated on date 12 of Figure 3, the opening will occur exactly the same as it was in the 1 'envelope of Figures 5 to 8.
• the cuts 8a and 11 'referred for the realization of the envelopes corresponding to figures 9 to 11 and to figures 12 and 13, respectively, are attached to the last cut 5 and 5 'of the oblique cut alignments made in the respective gluing areas of said envelopes.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Cartons (AREA)
• Vessels And Coating Films For Discharge Lamps (AREA)
• Credit Cards Or The Like (AREA)
• Packages (AREA)
• Bag Frames (AREA)
• Sheets, Magazines, And Separation Thereof (AREA)
• Supplying Of Containers To The Packaging Station (AREA)
• Making Paper Articles (AREA)
• Packaging Of Special Articles (AREA)
• Data Exchanges In Wide-Area Networks (AREA)
• Soy Sauces And Products Related Thereto (AREA)
• Facsimile Transmission Control (AREA)
• Control And Other Processes For Unpacking Of Materials (AREA)

Priority Applications (11)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26154867

Family Applications (1)

Country Status (13)

Cited By (1)

Families Citing this family (3)

Citations (5)

Family Cites Families (2)

• 1996
  • 1996-02-06 DK DK96901804T patent/DK0753462T4/da active
  • 1996-02-06 EP EP96901804A patent/EP0753462B2/en not_active Expired - Lifetime
  • 1996-02-06 ES ES96901804T patent/ES2136387T5/es not_active Expired - Lifetime
  • 1996-02-06 AT AT96901804T patent/ATE180453T1/de not_active IP Right Cessation
  • 1996-02-06 WO PCT/ES1996/000021 patent/WO1996024531A1/es active IP Right Grant
  • 1996-02-06 AU AU46236/96A patent/AU4623696A/en not_active Abandoned
  • 1996-02-06 CA CA002187509A patent/CA2187509C/en not_active Expired - Fee Related
  • 1996-02-06 DE DE69602559T patent/DE69602559T3/de not_active Expired - Lifetime
  • 1996-02-06 BR BR9605804A patent/BR9605804A/pt not_active IP Right Cessation
  • 1996-10-09 NO NO19964289A patent/NO320673B1/no not_active IP Right Cessation
  • 1996-10-09 FI FI964040A patent/FI118526B/fi not_active IP Right Cessation
  • 1996-11-10 RU RU96121799A patent/RU2113385C1/ru not_active IP Right Cessation
• 1999
  • 1999-08-02 GR GR990401990T patent/GR3030909T3/el unknown

Patent Citations (5)

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