DUAL DIRECTIONAL OPENING TYPE MAIL ENVELOPE

Abstract

A dual directional opening type mail envelope has opening start section with cutting part and cutting lines marked with arrows in the center that can be cut from both sides and a cutting part that had been partly cut beforehand. Dual directional opening type mail envelope includes an opening start section with a cutting part and cutting lines marked with arrows that open when the thumb and index finger of the left hand flips the cutting part back where first and second cutting line are opened cleanly and rapidly and as thumb nail on the right hand is inserted into the gap to move left and right as cutting lines are comprises of arrows placed with distance which ensures an easy and quick opening of the envelope will be opened rapidly as a flying arrow without leaving any residue.

Description

FIELD OF THE INVENTION

The present invention relates to a dual directional opening type mail envelope and more specifically, an envelope that has opening start section with cutting part and cutting lines marked with arrows in the center that can cut from both sides and a cutting part that had been partly cut beforehand. Dual directional opening type mail envelope includes an opening start section with cutting part and cutting lines marked with arrows that open when the thumb and index finger of the left hand flips the cutting part back where first and second cutting lines opens cleanly and rapidly and as thumb nail on the right hand is inserted into the gap to move left and right as cutting lines are comprises of arrows placed with distance which ensures that the envelope will be opened rapidly as a flying arrow without leaving any residue. When thumb nail of the right hand opens the envelope to the left, direction of the arrows are towards the left and when it opens the envelope to the right, direction of arrows are to the right which makes it easy to open the envelope from both directions at the center without any trouble and prevents pieces of envelope from falling off as it does when it is not opened easily and there is no need to clean up after opening the envelope as dual directional opening type mail envelope is designed to be environmentally friendly.

BACKGROUND ART

Use of electronic mail is commonplace in this modern age but the amount of sending regular mail has increased even more than before. Mail sent through the post is still considered as important method of communication and most bills and notices from public office are sent in the regular mail.

In the case of standard envelopes that are currently being used, the envelope is sealed with adhesives such as glue after inserting the content inside the envelope. It is very bothersome to open the sealed part of the envelope with hands when recipient has received the mail to check the content of the mail. Process of opening the mail is inconvenient and content may be partly damaged when the envelope is opened with force when size or the content had been undetermined.

When there are cutting equipments such as scissors or knives nearby, it is more convenient to open the envelope. In most cases, content can be partly cut after the envelope has been opened using scissors or knives when size of the envelope and the content is similar to each other.

Furthermore, after the envelope has been opened using hands or cutting means, pieces of paper that fell off from the envelope during the opening process makes the surrounding area untidy. Pieces of paper are thrown away anywhere as the envelope is torn apart.

There are cutting lines provided in envelopes that are sent out from public office or financial institution to prevent this type of inconvenience, which cutting lines enable the recipient to conveniently open the envelope. However, one has to be very careful while opening the envelope along cutting line as some do not open properly and even if it does, it tends to deviate from the cutting lines when it is being opened.

When envelope with cutting lines is not opened in slow and careful manner, it strays from the cutting lines and opens in a messy way as paper has no texture and is torn irregularly unlike fiber which is torn along with ply.

As the cutting lines of currently used envelope with cutting line do not serve its purpose, people tend to open it in the same manner as regular envelopes after trying to open the envelope by using the cutting lines upon receiving it.

In order to solve the above problem, the applicant of the present invention has acquired Korean Registered Patent No. 10-1130701 known as ‘One touch type mail envelope’ which is an envelope comprising first and second cutting lines that are placed diagonally where one-touch material is adhered behind the front or the back side for end part to overlap with the cutting line in order to easily open the envelope along the cutting line as one-touch material is bent back.

Need for technology that opens the envelope cleanly without using cutting equipments was realized through manufacturing envelopes according to above-mentioned patent as it is not easy to print neatly on the envelope when one-touch material is inserted.

SUMMARY OF THE INVENTION

Accordingly, present invention has been made in view of the above mentioned problems occurring in the prior art, and it is an object of the present invention to provide environmentally friendly dual directional opening type mail envelope that opens cleanly and rapidly without leaving any residue which is easy to open in both sides from the center without any trouble and also prevents pieces of envelope from falling off when envelope is torn apart because it is hard to open.

To accomplish the above object, dual directional opening type mail envelope according to the present invention comprises an opening start section in the center for envelope to be cut open in both directions from the center, a part of the cutting start section being cut beforehand to form a cutting part.

Furthermore, the opening start section may include at least one arrow-marked cutting lines of arrow shape placed with distance from the end part of cutting line.

Furthermore, the cutting part is formed in half circle shape as a whole, and the arrow-marked lines may be placed with distance from each other when there is a plurality of the arrow-marked cutting lines.

Furthermore, both ends of the opening start section are provided with first and second cutting lines, respectively, the first and second cutting lines are formed by a plurality of arrow-marked cutting lines of arrow shape placed consecutively and repeatedly, the arrow-marked cutting lines being placed with distance from each other.

In addition, arrows of the arrow-marked cutting lines of the first cutting line and second cutting line are placed in opposite directions in order to open in different directions toward both sides from the opening start section.

The effect of envelope opening cleanly and rapidly is provided through the opening start section with cutting part and cutting lines marked with arrows in the center as thumb and index finger of the left hand flips the cutting part back and as thumb nail on the right hand is inserted into the gap to move left and right into first and second cutting line according to the present invention.

The effect of opening the envelope easily from both directions at the center without any trouble is provided as first and second cutting lines comprise of arrows facing opposite directions which ensures that envelope will be opened rapidly as a flying arrow without leaving any residue according to the present invention as thumb nail of the right hand opens the envelope to the left, direction of the arrows are towards the left and when it opens the envelope to the right, direction of arrows are to the right.

The effect of providing environmentally friendly envelope is provided in which it prevents pieces of envelope from falling off as envelope is torn apart when it is hard to open thus eliminating the need to clean things up according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a rear view illustrating dual directional opening type mail envelope according to an embodiment of the present invention.

FIG. 2 is a detail view illustrating an opening start section of FIG. 1.

FIG. 3 is a detail view illustrating arrow-marked cutting lines.

FIG. 4 is a detail view illustrating a plurality of arrow-marked cutting lines.

FIG. 5 is a concept view illustrating the comparison between two types of arrow-marked cutting lines.

FIG. 6 is a concept view illustrating envelope of FIG. 1 being opened.

FIG. 7 is a rear view illustrating dual directional opening type mail envelope according to another embodiment of the present invention.

FIG. 8 is a rear view illustrating dual directional opening type mail envelope according to yet another embodiment of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The preferred embodiments of the present invention will be described with reference to the accompanying drawings. In regards to numbers labeled in the embodiments of the drawing, it is to be noted that labels will stay the same even when the drawing changes when it concerns the same embodiments. Furthermore, detailed explanations that are considered to obscure the gist of present invention are not included in the specification. While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

FIG. 1 is a rear elevation illustrating dual directional opening type mail envelope according to the embodiment of present invention. FIG. 2 FIG. 2 is a detail view illustrating the opening start section of FIG. 1, FIG. 3 is a detail view illustrating cutting lines marked with arrows in detail, and FIG. 4 is a detail view illustrating multiple cutting lines marked with arrows in detail. FIG. 5 is a concept drawing illustrating the comparison between two types of cutting lines marked with arrows. FIG. 6 is a concept drawing illustrating envelope of FIG. 1 being opened.

In description below, side of the envelope that does not have a sealed part is described as the front part and side of the envelope with sealed part in the middle is described as the back side for convenience. Illustration in FIG. 1 is mostly used in mail envelope which is commonly known as a small envelope.

Referring to FIGS. 1 to 5, dual directional opening type mail envelope in accordance with an embodiment of the present invention includes opening start section 2, first cutting line 8 and second cutting line 10.

The opening start section 2 is located in the middle in order to open the envelope in both directions in the middle and placed below a cover (C) that seals the envelope by applying glue to a back side of the cover. The opening start section 2 may be formed in shape of a half circle but this application does not limit the shape of the opening start section.

The opening start section 2 comprises cutting part 4 and arrow-marked cutting line 6.

The cutting part 4 is placed in a part of opening start section 2 and had been partly cut beforehand. Accordingly, thumb and index finger of the left hand flips the cutting part 4 back and the aperture of the cutting part 4 will be opened where first cutting line 8 and second cutting line 10 are opened cleanly and rapidly and as thumb nail on the right hand is inserted into the aperture (gap) to move left and right as illustrated in FIG. 6 for right-handers. For left-handers, thumb and index finger of the right hand flips the cutting part 4 back and thumb nail of the left hand should be inserted in the open gap.

As seen on FIG. 2, insert groove 5 may be additionally placed on the cutting part 4. When the insert groove 5 is provided, it is easy to insert the thumb nail of the right hand even when cutting part 4 is not flipped over.

Arrow-marked cutting line 6 is placed with distance from end part of the cutting part 4 in shape of an arrow. There may be more than one arrow-marked cutting line 6 on the opening start section 2. When there are multiple arrow-marked cutting lines 6, the arrow-marked cutting lines 6 are placed with distance from each other, as shown in FIG. 2.

First cutting line 8 is placed at the left end part of the opening start section 2. The first cutting line 8 is comprised of multiple arrow shaped cutting lines placed consecutively and repeatedly.

Arrows of the arrow-marked cutting line of the first cutting line 8 all face left. Therefore, first cutting line 8 is detached along the cutting lines marked with arrows placed with distance when thumb nail on the right hand is inserted into the gap and moves to the left to open the envelope rapidly as a flying arrow without leaving any residue. The envelope is opened neatly without leaving any residue as cutting lines are in the shape of an arrow. As details regarding cutting lines marked with arrows for first cutting line 8 are the same with cutting lines marked with arrows for second cutting line 10 except that they face opposite directions, it will be explained together in part of the specification that explains FIGS. 3 and 4.

Second cutting line 10 is placed on the right end part of the opening start section 2. The second cutting line 10 is comprised of multiple arrow shaped cutting lines placed consecutively and repeatedly.

Arrows of the arrow-marked cutting line of the second cutting line 10 all face right. Therefore, second cutting line 10 is detached along the cutting lines marked with arrows placed with distance when thumb nail on the right hand is inserted into the gap and moves to the right to open the envelope rapidly as a flying arrow. The envelope is opened neatly without leaving any residue as cutting lines are in the shape of an arrow in the same manner with first cutting line 8.

With reference to FIG. 3 and FIG. 4, cutting lines marked with arrows include cross cutting line 12 and wedge cutting line 14. The cross cutting line 12 and wedge cutting line 14 are perforated and cut beforehand. One end of the cross cutting line 12 (a left end as based on FIGS. 3 and 4) is connected to obtuse part of the bent section in the wedge cutting line 14 and other end (a right end as based on FIGS. 3 and 4) is not connected to acute (inner) part of the bent section in the wedge cutting line 14 and separated by a small distance. Therefore, there is a paper part between cross cutting line 12 and wedge cutting line 14 that has not been cut.

With reference to FIG. 5, when the arrow-marked cutting line is shaped in the manner of FIG. 5(a), according to the actual experiment, envelope does not cut easily and residue may be left because the residue has departed from the cutting line during cutting. As for the structure of 5(a), right end part of the cross cutting line is connected to the wedge cutting line and left end part is not connected to the wedge cutting line and separated by a small distance.

On the other hand, one end part (left end part) of the cross cutting line in FIG. 5(b) connects to the wedge cutting line and the other end part (right end part) is not connected to the wedge cutting line and separated by a small distance. In case of FIG. 5(b), envelope is cut neatly and rapidly without any residue. Paper tends to be cut in irregular manner as it has no texture but with the structure of FIG. 5(b), it prevents straying from the cutting line and cuts neatly and rapidly along the arrows.

Thumb and index finger of the left hand flips the cutting part 4 back and the aperture of the cutting part 4 will be opened where first cutting line 8 and second cutting line 10 are opened cleanly and rapidly and as thumb nail on the right hand is inserted into the aperture (gap) to move left and right one time for each side as illustrated in FIG. 6 for right-handers.

FIG. 7 is a rear view illustrating dual directional opening type mail envelope according to another embodiment of present invention.

Example of FIG. 7 is the method that administrative office or financial institution uses and also for international air mail where first cutting line and second cutting line is formed in order for them to form an incline for a fixed angle as shape of the cover that adhesive is placed on the side is triangular.

FIG. 8 is a rear view illustrating dual directional opening type mail envelope according to yet another embodiment of present invention.

Example of FIG. 8 can be most commonly applied to the file envelope for A4 papers. It is similar to FIG. 1 except for the fact that assisting cutting line 20 is placed on the left end part of first cutting line and right end part of second cutting line in the shape of short and long dash lines or two short and long dash lines.

It has not been illustrated but in case of large envelopes like the example for FIG. 8, first cutting line and second cutting line is formed in a straight line until the end where envelope can be easily opened by inserting the finger in the part where front and backside of the envelope overlaps.

While specific implementations are discussed, it should be understood that this is done for illustration purposes only. A person skilled in the relevant art will recognize that other components and configurations may be used without parting from the spirit and scope of the disclosure. It should also be understood that the above-described examples are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

[Description of Reference Numerals]
2 - Opening start section     4 - Cutting part
6 - Arrow-marked cutting line 8 - First cutting line
10 - Second cutting line      12 - Cross cutting line
14 - Wedge cutting line       20 - Assisting cutting line

Claims

1. A dual directional opening type mail envelope comprising an opening start section in the center for envelope to be cut open in both directions from the center,

wherein a part of the cutting start section is cut beforehand to form a cutting part, the cutting part is provided with an insert groove, both ends of the opening start section are provided with first and second cutting lines, respectively, the first and second cutting lines are formed by a plurality of arrow-marked cutting lines of arrow shape placed consecutively and repeatedly, the arrow-marked cutting lines being placed with distance from each other, and

wherein the arrow-marked cutting line comprises a cross cutting line and wedge cutting line that had been cut beforehand, one end of the cross cutting line is connected to obtuse part of the bent section in the wedge cutting line and the other end is not connect to acute part of the bent section in the wedge cutting line to be spaced apart therefrom, so a paper part that has not been cut exists between the other end part of the cross cutting line and the wedge cutting line.

2. The dual directional opening type mail envelope of claim 1, wherein the opening start section includes at least one arrow-marked cutting lines of arrow shape placed with distance from the end part of cutting line.

3. The dual directional opening type mail envelope of claim 2, wherein the cutting part is formed in half circle shape as a whole, and the arrow-marked lines are placed with distance from each other when there are a plurality of the arrow-marked cutting lines.

4. The dual directional opening type mail envelope of claim 1, wherein arrows of the arrow-marked cutting lines of the first cutting line and second cutting line are placed in opposite directions in order to open in different directions toward both sides from the opening start section.