JPH08133301A - Envelope - Google Patents

Abstract

PURPOSE: To guide the inserted end of contents so that the contents smoothly reach the bottom of an envelope by extending cuts widthwise and allowing the cuts to project toward an opening at widthwise positions. CONSTITUTION: An envelope 10 is provided with V-shaped continuous cuts 36 near the bottom 14 through the front and back sheets 13, 11. The cuts 36 include a number of inverted-V-shaped one repeats 38. Each of the one repeats 38 comprises a left cut 40 and right cut 42. Near the top end of the cuts 40, 42, where the cuts approach each other, a continuous or uncut area 44 is provided. A discontinuous area 46, similar to the area 44, is provided between the bottom ends of the left cut 40' at the 42 and adjacent other one repeat 38'. Thus, the entry of the contents is not prevented by an obstacle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an envelope, and more particularly to an envelope provided with a cutting line for cutting which penetrates the front and back sheets and extends in the width direction in the vicinity of an opening for inserting a stored item or in the vicinity of a bottom. .

[0002]

2. Description of the Related Art Envelopes of the type described above are shown in FIGS.
There is one shown in 5.

That is, in the vicinity of the bottom of the envelope 10, perforation-like discontinuity lines are provided through the front and back sheets 13 and 11 in the width direction. This forms the score line 16. The envelope 10 is formed of paper or a plastic film. A sheet A, which is the content, is inserted into the envelope 10 and the flap 12 is folded back to the front sheet 13 (the back side of the paper surface in FIG. 11), which is not shown. It is affixed via an adhesive. In this case, the envelope 10 can be easily opened by cutting from the score line 16 provided in the vicinity of the bottom portion 14.

[0004]

However, in such an envelope, the corner portion a of the content A is cut line 16
The content A cannot be inserted into the envelope by being inserted into the constituent unit 18 of FIG. Further, as shown in FIG. 13, even if the contents A are straightly inserted into the envelope, the lower end b of the contents A is cut at the cut line 16.
Collides with the end of the score line 16 and is prevented from further entering.

That is, in detail, as shown in FIGS. 14 and 15, the piece 20 which is a part of the back sheet 11 on the bottom 14 side of the score line 16 is dropped inside the envelope. Therefore, the free end 22 of this piece 20 intervenes in the envelope like a baffle. Since the lower end b of the content collides with this,
Further entry of contents is blocked.

[0006]

According to a first aspect of the present invention, there is provided an envelope in which a cut line for cutting is provided through a front and back sheet in the vicinity of an opening for inserting contents, in the vicinity of a bottom, or in an intermediate portion between both. The score line intermittently extends in the width direction,
It is an envelope characterized in that it is bent and projected to the opening side at least at one position in the width direction, and has an uncut, ie, continuous, part at the tip of the projecting portion.

According to a second aspect of the present invention, the cut line is formed by a waveform having a continuous V shape, and the end portion on the opening side in each waveform has an uncut portion, that is, a continuous portion. The envelope according to claim 1.

According to a third aspect of the present invention, the cut line alternately covers a portion projecting in an inverted V shape toward the opening side and a portion linearly extending in the width direction on the bottom side. The envelope according to claim 1, wherein the selection portion of the inverted V-shaped portion is not cut, that is, is continuous.

According to a fourth aspect of the present invention, the cut line has a portion protruding in an inverted V shape at a central portion in the envelope width direction, and the inverted V shape.
The both ends of the V-shaped portion have linearly extending portions in the envelope width direction, and the tip of the inverted V-shaped portion is not cut, that is, continuous. It is the envelope described in 1.

According to a fifth aspect of the present invention, the score line has two triangular sides having a vertex at a position slightly closer to the opening than the bottom and a bottom at the bottom, and the top of the triangle. 2. The envelope according to claim 1, wherein the envelope is not cut, that is, has a continuous portion.

According to a sixth aspect, in the vicinity of an opening for inserting the contents,
In an envelope in which a cutting score line for penetrating the front and back sheets is provided in the vicinity of the bottom part or in the middle part of both, the central part of the cutting line extends substantially linearly in the envelope width direction and is located on the opening side. However, both sides are inclined and extend toward both sides of the envelope and extend toward the bottom side.

[0012]

[Problem] In Claims 1 to 5, since it is configured as described above, that is, when the content is inserted into the envelope, the score line is the first contact point with the cut line. Since it is not cut, that is, it is continuous, the content insertion end does not abut the obstacle at this position and further entry is prevented. And, in the cut portion, the edge portion is certainly interposed in the envelope, but it is not cut, that is, from the continuous portion to the cut line portion on the envelope bottom side. Since the inside of the envelope is inclined toward the inside, the insertion end of the contents is guided by this and smoothly reaches the bottom of the envelope.

According to the sixth aspect of the present invention, since the straight-line portion of the cut line which comes into contact with the insert first is arranged only in the central portion in the width direction, the corner portion of the cut line when the stored item is inserted. Never get stuck in. Further, although the lower end of the stored item may come into contact with the cut end face of the linear portion, the length thereof is relatively short compared to the full width of the envelope, so that the degree of failure is small.

[0014]

1 and 2 show an embodiment of the present invention. In the vicinity of the bottom portion 14 of the envelope 10, a V-shaped continuous cut line 36 penetrates through the front and back sheets 13 and 11 of the envelope. Shown in the figure is a back sheet 11, behind which is a front sheet 13 whose upper end is extended to form a flap. For the convenience of illustration, the cut line 36 is shown thick, but in practice, it is preferable that the cut line 36 has no width and is simply a cut line. The cut line 36 has a structure in which a large number of inverted V-shaped one repeats 38 are repeated. Each one repeat 38 is a break 4 on the left side in the figure.
It is composed of 0 and a cut 42 on the right side. In the vicinity of the upper ends of the cuts 40, 42 that are close to each other, a continuous portion, that is, a non-cut portion 44 is formed between them. Similarly, there is a similar discontinuity portion 46 between the lower ends of the cut 42 and the other cut 40 'on the left side of the other one repeat 38' adjacent thereto. In this way, a large number of cuts 40, 4
2, 40 ', 42' ... Extend in the width direction of the envelope while interposing discontinuous portions 44, 46.

FIG. 2 shows the mechanism of this embodiment. That is, there is a sagging portion 50 formed by the score line 40 continuous to the discontinuous portion 44, but at the discontinuous portion 44 of the cut, the insert A does not engage with the obstacle and the sagging portion 50 is not formed. The insert A is smoothly guided in the direction of the arrow in the figure by being guided by the oblique portion of the.

As shown in FIG. 1, at both ends in the width direction of the envelope, the cut line 36 does not reach the edge thereof. Since this is done, there is no deviation in the thickness direction of the envelope at the edge, and it does not get caught when the contents are inserted.

If the angle formed by the cuts 40 and 42 and the horizontal direction in the drawing is small, the cut can be easily cut, and if the angle is large, the strength of the envelope is large. It may be appropriately determined so as to satisfy the requirements of both parties, but 60 ° is most desirable.

3 to 6 show another embodiment of the present invention.

In FIG. 3, the score line 36 has a plurality of inverted V-shaped portions 52 in the width direction, and the adjacent inverted V-shaped portions 5 are provided.
Between 2 and 52, a linear portion 54 extending in the width direction is formed on the bottom side. Also in this case, the discontinuous portion 44 is provided at the tip of the inverted V-shaped portion 52.

In FIG. 4, one reverse V-shaped portion 56 is provided in the widthwise central portion, and both sleeve portions thereof form linear portions 58, 58 extending in both left and right directions.

In the embodiment shown in FIG. 5, the score line 36 is composed of two sides 60, 60 of a triangle having the bottom portion 14 as the bottom side.
60 has a cut discontinuity 44 between its upper ends.

In the embodiment of FIG. 6, the score line 36 is trapezoidal with the bottom side 14. That is, in the center portion of the score line 36 in the envelope width direction, the linear portion 6
2 and the left and right sleeves have inclined portions 64, 6
4 extends toward the corners on both sides of the bottom. In this case, since the linear portion 62 exists only in the central portion in the width direction, the corner portion a of the stored item A does not get caught on it as in FIG. Although the shape shown in FIGS. 13 to 15 may be caught, the possibility is small because the portion 62 is a polar portion. The length of the linear portion is preferably 1/2 or less of the full width of the envelope.

FIGS. 7 and 8 show a modification of the score line of the present invention.

FIG. 7 shows each of the cuts 6 forming the cut line 36.
Reference numeral 6 has substantially the same length and extends in the width direction while bending in a wavy shape. The space 68 between the adjacent cuts 66, 66 is relatively small on both the left and right sides of the envelope, and the space 70 between the cut lines 66, 66 in the central portion is relatively large. With this structure, strength can be obtained by the relatively large discontinuity portion 70 in the central portion, and the relatively fragile portions on the left and right sides facilitate separation and opening after use of the envelope. .

In FIG. 8, the intervals between adjacent cuts are substantially the same, but the lengths of the cuts are different. That is, the cuts 70 on the left and right sides of the envelope are relatively long, and the other cuts 74, 74 at the center are relatively short. As a result, the same operation as in the case of FIG. 7 is achieved.

FIG. 9 shows still another embodiment of the present invention. In this case, the continuous cut 36 is provided near the envelope opening. That is, the cut 36 is formed by penetrating both the front and back sheets of the envelope.

In the modification of FIG. 10, the flap 12
Is also provided with a similar cut 36 '. However, the cut 36 'is formed line-symmetrically with the cut 36 provided on the envelope body side and the fold 13 of the flap as the axis of symmetry. For this reason, when the flap 12 is folded over the envelope body side, the cut 36 that penetrates the front and back of the envelope body and the cut 36 'on the flap side exactly overlap. Therefore, it is easy to open the envelope opening through the cuts 36 and 36 'after using the envelope.

In the embodiment of FIGS. 9 and 10, FIGS.
A cut line similar to the above may be provided.

The position where the cut line 36 is provided is not limited to the above,
It may be in the middle between the upper and lower ends of the envelope (that is, may be the central portion in the vertical direction in the figure of the envelope).

Throughout the present invention, the swelling of the score line is not limited to the V shape, but as shown in FIG.
A suitable shape such as a letter or a semicircle may be used.

[0031]

According to the present invention, when the contents are stored, the contents are not caught by the cut lines, and the contents can be smoothly inserted. Moreover, the opening of the envelope is easy due to the score line.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an enlarged view showing the mechanism of the embodiment of FIG.

FIG. 3 is a front view of a main portion showing another embodiment of the present invention.

FIG. 4 is a similar view showing still another embodiment.

FIG. 5 is a similar view showing still another embodiment.

FIG. 6 is a similar view showing still another embodiment.

FIG. 7 is a schematic view showing a modification example of a score line of the present invention.

FIG. 8 is a schematic view similar to the previous figure showing another modification.

FIG. 9 is a front view of a main portion showing still another modified example of the present invention.

FIG. 10 is a front view of a main part showing still another embodiment of the present invention.

FIG. 11

FIG. 12 is a front view showing a usage state of a conventional envelope.

FIG. 13 is a front view showing a different usage state of the conventional envelope.

FIG. 14 is a vertical cross-sectional view showing a state in which the insert is engaged with the slit of the envelope and the insertion is blocked in FIG.

FIG. 15 is a cross-sectional view showing the state of the previous figure.

[Explanation of symbols]

 10 Envelope 36 Cut line 44 Cut discontinuity

Claims (6)

[Claims] 1. An envelope provided with a cutting line for cutting through the front and back sheets at the vicinity of an opening for inserting contents, near the bottom, or an intermediate portion between both, wherein the cutting line is intermittent in the width direction. And extends at least at one position in the width direction to project toward the opening side,
An envelope characterized in that it has an uncut portion, that is, a continuous portion, at the tip of the protruding portion. 2. The cut line is formed by a waveform having a continuous V shape, and the opening side end of each waveform has an uncut portion, that is, a continuous portion. The envelope according to Item 1. 3. The cut line is formed by alternately reciprocating a portion projecting in an inverted V shape toward the opening side and a portion extending linearly in the width direction on the bottom side. The envelope according to claim 1, wherein the selection portion of the V-shaped portion is not cut, that is, is continuous. 4. The cut line has a portion protruding in an inverted V shape at a central portion in the envelope width direction, and a portion linearly extending in the envelope width direction in both sleeves of the inverted V-shaped portion. , The tip of the inverted V-shaped portion is not cut,
That is, the envelope according to claim 1, which is continuous. 5. The cutting line has two sides of a triangular shape having a vertex at a position slightly closer to the opening side than the bottom and having the bottom as a base, and cutting at the top of the triangle. The envelope according to claim 1, wherein the envelope is not formed, that is, has a continuous portion. 6. An envelope in which a cutting line for cutting is provided through the front and back sheets near the opening for inserting the contents, near the bottom, or in the middle between the both, wherein the central part of the cutting line is the envelope. An envelope characterized in that it extends substantially linearly in the width direction and is located on the opening side, and both side parts are inclined and extend toward both sides of the envelope and toward the bottom side.