FI69610B - KUVERTSAMMANSAETTNING - Google Patents

Description

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(51) Kv.lk. * / Lnt.CI. * B 65 D 27/10 SUOMI — FINLAND <21) Patent application - Patentansökning 791117 (22) Application date - Ansökningsdag 04.04 .79 (Fl) (23) Starting date - Giltighetsdag 04.04. 79 (41) Made public - Blivit offentlig 12.10.79

National Board of Patents and Registration ... oa i i flc '(44) Date of publication and publication 25.1 1. o 5

Patent and registration authorities Ansökan utlagd och utl.skriften publicerad (32) (33) (31) Privilege requested — Begärd priority 11.04.78 USA (US) 895 ^ 51 (71) Moore Business Forms Inc, 300 Lang Boulevard, Grand Island,

New York 14072, USA (72) William R. Wakeman, Ransomville, New York,

Edmund G. Van Malderghem, Lewiston, New York,

The present invention relates to a generally self-closing envelope unit with a detachable inner part, and more particularly to a unit in which the inner part is enclosed. is held stationary by a self-adhesive that at least partially secures the layers together and is in contact with the interior.

Several types of filled, sealed envelopes with loose insides are already known in the art. For example, U.S. Patent 4,108,889 discloses a detachable inner member that is held stationary within the outer layers of an envelope by retaining strips that abut the opposite side and end edges of the inner member. U.S. Patent 3,777,971 discloses a detachable inner portion held in place within a closed, filled envelope by means of constraints made from the second outer layer of envelope and forming shoulders that rest against the edges of the inner portion. In addition, U.S. Patent 3,339,827 has a detachable interior that is held stationary within a filled sealed envelope by an adhesive used to secure the outer layers of the envelope together.

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However, assembling all three of these structures is a bit difficult due to the manufacturing precision required to ensure that the interior can be removed without hindrance. This is a particular problem when assembling continuous envelopes according to the above-mentioned patent 3 339827, because even a small amount of glue used to attach the outer layers of the envelopes makes it difficult to remove the inner part if the adhesive touches any part of the inner part. Thus, in the manufacture of envelope units, extreme care must be taken to ensure that the adhesive strips are spaced a small distance from the circumferential edge of the inner part so that these edges are not attached to the adhesive.

Other known techniques related to the invention are disclosed in U.S. Patents 3,208,662 and 3,208,663, which use a self-adhesive adhesive to hold the folding envelopes on a backing web without the adhesive adhering to the envelopes themselves. However, neither patent discloses a filled, sealed envelope unit according to the invention.

It is an object of the present invention to provide a filled, sealed envelope unit with a detachable inner part which is held in place inside the envelope without moving relative to the outer layers of the envelopes. The design of this envelope unit avoids the difficulties encountered in the manufacture and removal of known envelope units with filled, closed and detached inner parts.

Another object of the invention is to provide a filled, closed envelope unit which can be manufactured quickly and economically because the inner parts are brought into contact with the parts connecting the outer layers of the envelope. The inner parts still remain detached from these parts, which closely surround the periphery of the inner part, thus ensuring easy removal of the inner part without obstacles.

This is realized in an envelope combination according to the preamble of claim 1, which according to the invention is given the features set out in the characterizing part of claim 1.

According to an embodiment of the invention, the filled, sealed envelope unit is constructed for this purpose in such a way that the outer layers of the envelope are attached to each other, for example with self-adhesive, applied to the inside and outside of the inner edges so that the inner part remains stationary with the layers. , but detached from it. The inner part can therefore be quickly and easily removed without hindrance once the envelope has been removed.

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It is a further object of the present invention to provide a filled, sealed envelope unit having a detachable inner portion and wherein the outer layers of the envelope are adhesively attached to each other in a conventional manner along a pair of opposite edges. The layers are further fastened to each other along a pair of opposite ends, for example with a self-adhesive adhesive applied to the inside and outside of the adjacent edges of the inner part, so that the inner part remains stationary with respect to the layers. The inner part is therefore only in contact with the self-adhesive, but remains detached from it so that it can be removed effectively and unobstructed once the envelope has been removed.

Yet another object of the invention is to provide a filled, closed envelope unit comprising a detached inner part and in which the outer layers of the envelope are attached to each other in a conventional manner along circumferential lines so as to form an envelope pocket for the inner part, for example self-adhesive adhesive is applied to one side of the . This adhesive portion further extends inside these opposite edges to keep the interior stationary.

Other objects, advantages and novel features of the invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Figure 1 is a perspective view of envelopes connected in series according to an embodiment of the invention, some of which have been cut away for clarity.

Fig. 2 is a plan view of an intermediate web forming inner sheets within the series-connected envelope units of Fig. 1.

Fig. 3 is a slightly enlarged plan view of a single envelope of the series of Fig. 1 with the feed ribbons removed and a portion cut away for clarity.

Figures 4, 5 and 6 are sectional views taken along lines 4-4, 5-5 and 6-6 of Figure 3, respectively.

Figure 7 is a view similar to Figure 1 of another embodiment of the invention. Fig. 8 is a plan view of an intermediate web forming inner sheets within the series-connected envelope units of Fig. 7.

Fig. 9 is a slightly enlarged plan view of a single envelope of the series of Fig. 7 with the feed ribbons removed and a portion 4

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cut off for clarity.

Figures 10 and 11 are sectional views taken along lines 10-10 and 11-11 of Figure 9, respectively.

Fig. 12 is a plan view of envelopes connected in series according to a further embodiment of the invention, parts of which have been cut away for clarity.

Figures 13 and 14 are sectional views taken along lines 13-13 and 14-14 of Figure 12, respectively.

Figure 15 is a partially sectioned plan view of a single envelope in accordance with a further embodiment of the invention.

Fig. 16 is a sectional view taken substantially along line 16-16 of Fig. 15.

Fig. 17 is a plan view of a single envelope according to yet another embodiment of the invention, the front of which is folded back for clarity.

Turning to the drawings, in which like numerals refer to the same and like parts throughout the figure, Figure 1 shows an extension series of filled, sealed envelope units, generally indicated by reference numerals 10, consisting of overlapping upper and lower layers 11 and 12 spaced apart. 13 delimiting the front and back sheets 14 and 15 of the envelope (Figures 3-6). The upper and lower layers have overlapping longitudinal lines of weakness 16 near the opposite edges, delimiting detachable feed belts with spaced feed holes.

The continuous intermediate web 18 shown in Fig. 2 is placed between the upper and lower layers, and cuts 19 are formed therein, which run along opposite sides of the lines of weakness 13. The cuts then delimit a series of inner sheets 21 with connecting parts 22 and 23 between adjacent sheets at opposite ends of the cuts.

The layers 11 and 12 are provided with fastening strips 24 and 25 located along their opposite side edges, which can be e.g. self-adhesive glue. The inner surfaces of the upper and lower layers also have strips 26 and 27 located in the abutments, which run slightly along the lines of weakness 13.

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5 inwards. These strips may likewise be a self-adhesive adhesive which, like the strips 24 and 25, may be a conventional contact latex adhesive or a heat adhesive so that the opposing strips only adhere to each other at elevated temperatures, but not to the interlayer inner sheets, as will be explained later. Such an adhesive can therefore be activated by simple contact or by pressure or heat. Alternatively, such a self-adhesive adhesive may be of the type which is reactivated by wetting or radiation. In addition, the opposing fastener strips may be, for example, polyethylene, which is activated by applying heat to it.

The strips 24 and 25 are located along opposite side edges 28 and 29 of the inner sheets 21 and have sufficient width to be located both inside and outside these side edges (Figures 3 and 4). Likewise, the opposing fastener strips 26 and 27 are located along the opposite end edges 31 and 32 of the inner parts and have a sufficient width to be located both inside and outside these end edges, as shown in Figures 1, 3 and 5. Due to their properties, these opposing adhesive strips 24 and 25 only adhere to each other and not to any other part of the inner sheets along opposite edges 28 and 29. Likewise, the opposing strips 26 and 27 adhere only to each other and not to any part of the inner sheets along the opposite end edges 31 and 32. As shown in the case of the envelope unit of Fig. 3, each inner part 21 is thus made immobile between the rear part and the front part of the envelope, whereby it is in contact with, but detached from, the strips of adhesive.

As in the aforementioned U.S. Patent 4,010,899, the connecting portions 22 and 23 are separated from the inner portions at some suitable stage in the web treatment process. The separation can take place by cutting the connecting parts 22 and 23 along the lines 33a shown in broken lines in Fig. 2, forming clean cuts 33. These cuts can be made through a second outer layer, such as the lower layer 12, as shown at 34 in Fig. 6. separating the connecting parts 22 and 23 from the inner sheets and allowing the air inside the closed letter-envelope unit to escape. A completely flat envelope unit is therefore possible, thus avoiding the "pillow effect" normally found in the manufacture of sealed envelopes.

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The upper and lower layers have longitudinal weakening lines 35 and 36, respectively, at one end of the envelope units slightly inside the adhesive strips 24 and 25. In this way, a base 37 is formed, after which the envelope is opened and the inner sheet is pulled out. A thumb notch 38 may be formed at lines 35 and 36 to facilitate gripping the base covering the end portion of the inner sheet.

It will be appreciated from the foregoing that envelope units made in accordance with the embodiment described above include detachable inner sheets held in place between the front and back of the envelope without moving relative thereto because the fastener strips 24 and 25 and the fastener strips are activated when they are not in contact with each other. it grips any part of the inner sheet even when in contact with it. However, the inner sheets remain detached from the fastening strips of the abutments. Such an arrangement is shown schematically in Figures 4 and 5, in which, for the sake of clarity, the inner sheets are shown separately from the fastening strips, although in reality they are in contact with them, but still remain detached from them. The inner sheet thus remains in the desired correct position inside the envelope when handled through the computer's printing device.

In another embodiment of the invention, shown in Figure 7, a set of filled, sealed envelope units, generally designated 39, consists of overlapping upper and lower layers 41 and 42 spaced by transverse lines of weakness 43 delimiting the front and back of the envelope 44. 45 (Figures 9-11).

Between the upper and lower layers is a continuous intermediate layer 46 in which intersections 47 (see Fig. 8) are formed at mutual intervals and run along opposite sides of the transverse lines 43. These lines also overlap in the remainder of the intermediate layer 46 with the corresponding lines of the upper and lower layers, so that these lines, together with the cuts, delimit a series of inner sheets and 48 held together by joints 49 at opposite ends of the cuts. Each floor has opposite longitudinal edges il 7

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along the overlapping longitudinal weakening lines 51 delimiting feed belts 52 having spaced feed holes 53 that engage the pins of the web feeder drawing pin feeder.

The upper, intermediate and lower layers are connected to each other by longitudinal adhesive strips 54 and 55 inside the lines of weakness 51. As shown in Figure 10, these adhesive strips connect the intermediate layer portion 49 to the upper and lower layers. The upper and lower layers have mating components 56 and 57, respectively, which may be, for example, self-adhesive and which run along the lines of weakness 43 and between the adhesive strips 54 and 55. These adhesive parts are the same type of self-adhesive as described above with reference to the mounting strips 24-27. As shown in Figures 7 and 11, such adhesive portions have a sufficient width to be located both inside and outside the opposite side edges 58 and 59 of the inner sheets 48. Due to their special nature, these opposite adhesive parts 56 and 57 only adhere to each other and not to any part of the inner sheets along the opposite edges 58 and 59. Furthermore, it should be noted that the portions 56 and 57 do not need to be applied as continuous cross-strips to the upper and lower layers, as shown in Figure 7, but can be formed into several adhesive spots both inside and outside the opposite edges 58 and 59 of the inner sheets. . Such portions could also be placed on the upper and lower layers in a plurality of discontinuous longitudinal strips between the adhesive strips 54 and 55.

The joints 49 are separated from the inner sheets at some suitable stage in the web processing process in the same manner as the joints 22 and 23 of the above-described embodiment. The joints 49 can be separated from the inner sheets by cutting along the lines 61a shown in Fig. 8 to form clean cuts 61. These separated joints are thus strip portions adjoining opposite ends of the inner sheets and keeping said sheets immobile between the lower and upper layers together with opposite adhesive portions 56 and 57.

The upper and lower layers have longitudinal lines of weakness 62 and 63 at one end of the envelope units slightly inward 8

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the second feed strip 52 and the inwardly delimited adjacent end edges of the cuts 61 so as to form a base 64 after which the envelope can be opened and the inner sheet pulled out. A thumb notch 65 may be formed at lines 62 and 63 to cover the inner sheet of each unit, which facilitates gripping the base.

Envelope units made in accordance with Figures 7-11 include loose and unattached inner sheets that are held in place in a desired position between the front and back of the envelopes by contacting the attachment portions 56 and 57 to prevent longitudinal movement of the inner sheets during web handling. The strip portions 49 prevent any attempt to move sideways. Admittedly, it should be emphasized that such a sideways shift would hardly occur without the strips 49, since close contact between the inner sheets and the fasteners 56 and 57 is sufficient to keep the inner sheets in exactly the right place inside the envelope pockets of the units.

According to another embodiment of the invention, the envelope units 66 connected in series are similar in construction to that described with reference to Fig. 7. Thus, the same reference numerals are used for the same parts. As shown in Figs. 12 and 14, the upper and lower layers are connected to each other directly by longitudinal adhesive strips 67 located inside adjacent feed tapes 53. Otherwise, these layers are further connected to each other in the same manner as in Fig. 7 by means of adhesive portions 56 and 57 which are brought into contact with each other to provide attachment. The main difference between units 66 and 39 is that the former does not have an intermediate layer as part of the structure, as shown in Figure 12. Instead, a series of inner sheets 68 are interposed between the upper and lower layers and are held mechanically in place in some suitable manner until the adhesive portions 56 and 57 are brought into contact with each other. As before, such adhesive portions are located both inside and outside the opposite edges 69 and 71 of the inner sheets, whereby they are in close contact with the inner sheets and prevent their longitudinal movement in the envelope pockets. Opposite side edges 70 of the inner sheets 68 are located inside the adhesive strips 67 completely separate from and without contacting them. Because the adhesive portions 56 and 57 are located between the adhesive strips 67, their opposite portions are located both inside and outside the side edges 70, thus preventing the lateral displacement of the inner sheets within the envelope pockets.

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According to yet another embodiment of the invention, the envelope units 66a are similar in construction to the units 66 of Figure 12 except that the self-adhesive portions of the adhesive dots 72 and 73 shown in Figures 15 and 16 extending around the inner sheet 45 extend inside and outside the peripheral edges of said sheet. . As before, when the parts 72 and 73 are brought into contact with each other, they adhere only to each other and not to any part of the inner sheet, even if these adhesive parts are in contact with the inner sheet. The inner sheet is therefore completely immobile inside the envelope pocket of the unit. However, these glue dots 72 and 73 can only be placed on opposite edges 74 and 75 of the inner sheet. The front and back portions 44 and 45 of the envelope are further secured together by circumferentially uniform conventional glue strips 76 and 77 located outside the glue dots 72 and 73 and securing the front and back portions. to each other.

Alternatively, solid self-adhesive adhesive lines or strips 79 and 81 of the abutments may be applied to the back 44 and 45 of the envelope along the entire circumference of the envelope 68, as shown in Figure 17, both securing the outer portions of the envelope together and holding the inner sheet in place. Such strips, like the dots 73 in Figure 15, are located both inside and outside the peripheral edges of the inner sheet. Thus, when the self-adhesive strips 79 and 81 are brought into contact with each other, the front and back of the envelope are attached to each other and the inner sheet is brought into contact with these adhesive lines, but remains detached from them or other parts of the envelope.

When the inner sheets 68 are placed between the outer layers, it may be desirable to use a temporary adhesive dot 78 that temporarily joins the inner sheets to the backsheets 45. After the inner sheets have been permanently immobilized between the outer layers by self-adhesive portions 56 and 57, as described above, temporary adhesive spots can be removed by drying, heat, cooling, radiation, bending, shock, or other physical or chemical changes depending on the properties of the temporary adhesive spot.

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The inner sheet material inside the envelopes of each embodiment is shown as individual sheets, but it should be noted that such material may comprise a plurality of inner sheets or a plurality of such sheets may include a return envelope without departing from the scope of the invention.

When using envelopes, the recipient of the envelope unit 10, 39, 66 or 66a simply grabs the detachable base with one hand and the opposite end of the envelope with the other hand outside the opposite side edge of the inner sheet and moves its hands apart in a jerky motion so that the envelope opens out.

Because the inner sheet is completely separated from the parts of the back or front of the envelope or from the strips or spots of adhesive, it can be removed from the envelope evenly and efficiently without difficulty. It is observed that the placement of the fastener strips with respect to the edges of the inner sheets does not require care, since the self-adhesion of the fastening parts prevents adhesion to the inner sheet.

It will be appreciated that the present invention may be altered and modified in many ways. It should therefore be noted that the invention may be applied in a manner other than that described above in the context of the appended claims.

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Claims (6)

6961 O 11 An envelope assembly consisting of filled, sealed envelopes comprising continuous top, middle, and bottom layers (11, 18, 12; 41, 48, 42) that overlap and form the front, inside, and back of the envelope and are spaced apart. separated by transverse lines of weakness (13; 43) spaced apart and having a combination of means formed on the front and back to open the sealed envelopes and to remove the insides, the inserts not attached to the top and bottom layers, the inserts having a first pair opposite free edges (31, 32; 58, 59) located on either side of the weakening lines, first and second attachment portions (24, 26, 25, 27; 56, 57) in both the top and bottom layers (11, 12; 41, 42) opposite and along the lines of weakness, with the fastening parts (24, 26, 25, 27; 56, 57) adhering only to each other at the front and for fastening the back side thus from one of their overlapping parts, characterized in that the fastening parts (26, 27; 56, 57) overlap at the opposite end edges (31, 32; 58, 59) of the inner portions (21; 48) to prevent the inner portions from moving in the longitudinal direction of the envelope assembly, each inner portion (21, 48) communicating with the fastening portions but not secured thereto. (24, 25; 54, 55) are adapted to extend along the longitudinal side strip edges to secure them together and to prevent the inner parts (21, 48) from moving in the transverse direction, and that the envelope assembly lacks other additional means at opposite end edges (31, 32; 58, 59) of the inner parts. in addition to the fastening parts (26, 27; 56, 57) mentioned in point 1, which additional means would prevent movement in the longitudinal direction of the envelope assembly. Envelope assembly according to claim 1, characterized in that the first (26, 27; 56, 57) and second fastening parts (24, 25; 54, 55) are self-adhesive. 12 6961 O Envelope assembly according to claim 1, characterized in that the fastening portions (24, 25; 54, 55) extending along the longitudinal side strip edges are adhesive strips spaced from said longitudinal edges. Envelope assembly according to claim 3, characterized in that said fastening parts (54, 55) fasten the upper and lower layers (41, 42) to planar elements (49) at two opposite longitudinal edges of each inner part, which elements (49) are the intermediate layer (48). ) and are originally part of the interlayer (48) but are separated therefrom. # tl 13 6961 0 1. Imposition of an image consisting of a file, a conveyor belt, a conveyor belt and an image (11, 18, 12; 41, 48, 42); the number and type of data from the genome of the genome-specific line (13; 43), which accompanies the value of the value of the genome of the genome in this case and in the absence of sketches and in some cases in the form of frying cantilever (31, 32; 58, 59), in which case it is considered to be the same as the main line (24, 26, 25 , 27, 56, 57) Bade i det övre ocet det hre skiktet (11, 12; 41, 42) not having a working line and a sloping slope or a rodent, but not too small (24, 26, 25, 27; 56, 57). ) for the purposes of this Regulation in the case of varietal belarna, kännetecknad av, att fästdelarna (26, 27; 56, 57) in the case of the inner part (21; 48) of the inner part (31, 32; 58, 59) for the inner part of the inner part of the inner part (21; 48) and in contact with the inner part (21; 48) In the present case, the third party (24, 25; 54, 55) is required to provide a margin for the majority of the marginal chancellor in the present case, and in the case of the third party (21; 48) and the third party, these are shown in the inner section (31, 32; 58, 59). These are shown in the second column (26, 27; 56, 57), which are used in the first instance and in the first instance.