JP6009831B2 - Sealed letter opener - Google Patents

Description

The present invention relates to an instrument for opening a sealed letter, and more particularly to an instrument for placing a perforation for opening a sealed letter.

Various types of sealed letter opening devices have already been proposed in which an end portion of a sealed letter is pushed and slid between a rotary continuous blade and a receiving roller to cut off the edge part.

Japanese Utility Model Publication No. 61-166899 JP 2011-224948 A

Since the sealed letter openers disclosed in Japanese Utility Model Laid-Open No. 61-166899 and Japanese Patent Application Laid-Open No. 2011-224948 use rotary continuous blades, the sealed letter is opened at the end. Is cut and cut off.

However, in a sealed letter such as a confidential or secret document, it is not preferable that a person other than the person such as the secretary completely opens the sealed letter because personal information or secret information may be leaked. Therefore, if a third party puts a perforation at the opening end of the sealed letter in advance, there is an advantage that the person can easily open it while preventing leakage of personal information and secret information.

In addition, it is convenient for the person who receives the sealed letter to easily open the seal if the sealed letter creator puts a perforation at the sealed edge before sending the sealed letter.

An object of the present invention is to provide a sealed letter opener that can easily perforate the sealed letter end in response to such a request.

Another object of the present invention is to provide a sealed opener that can be carried in a small size and can be easily perforated at the end of the sealed seal while holding the opener by hand.

Another object of the present invention is to inexpensively provide a sealed letter opener that can perforate a sealed letter end having a function such as a magnifying glass, an accessory case, a cleaning tool, and a lighting tool.

In order to achieve the above object, a sealed letter unsealing device of the present invention comprises two flat plates comprising a top plate and a bottom plate that are parallel to each other, and a side plate that connects the two flat plates to form a case. And a case provided with a slit-shaped guide rail groove into which an end of a sealed letter can be inserted over a part of the side plate, two shaft members provided in the case and connecting the top plate and the bottom plate, the two A disc-shaped perforation creation cutter that is loosely and freely inserted into one of the shaft members, and a perforation creation cutter that is loosely and freely inserted into the other of the two shaft members. It consists of a disk-shaped receiving roller provided with a groove for receiving the outer peripheral cutting edge.

The disk-shaped receiving roller is preferably made of a material having a large friction coefficient on the surface so as to rotate by the lateral movement of the sealed letter. As such a material, hard rubber or the like is preferable.

Insert the end of the seal into the guide rail groove of the slit provided in the case of the above-mentioned seal opener, and slide it between the perforated cutter and disc-shaped receiving roller. The perforation cutter and the disk-shaped receiving roller rotate to form perforations at the end of the sealed letter.

When this sealed letter opener is placed on a desk with the guide rail groove on the case facing up, the end of the sealed letter is inserted and shifted laterally by hand to form a perforation at the end of the sealed letter. However, since the bottom of the sealed letter is usually jammed to the bottom, if it is passed through the sealed letter opener as it is, the contents will be perforated. In addition, when inserting a sealed letter opener so that the top end of the sealed letter is turned down, the contents are shifted down by flipping the sealed letter. There is a risk of eye contact.

In the present invention, in order to eliminate the drawbacks, the perforation can be formed by the sealed letter opener while the sealed letter is faced up.

That is, in the present invention, either one or both of the two shaft members are formed of a hollow cylindrical body. Then, the top plate and the bottom plate that are in contact with both ends of the hollow cylindrical body of the shaft member are cut out on either one or both of the two shaft members formed of the hollow cylindrical body, and the top plate is connected to the bottom plate. A through hole was formed.

Then, put your finger into the through-hole of the sealed letter opener and hold it with your hand so that the guide rail groove provided on the case is down, and with the sealed letter up, the upper end of the sealed letter is the guide rail groove. Insert and slide the envelope opener sideways to easily form a perforation at the top of the envelope. When there are two through-holes, it is only necessary to put a thumb opener and an index finger in the respective holes to hold the sealed letter opener. In the case of a single through hole, the index finger or thumb may be inserted and the envelope opener may be held in the palm of your hand.

The through-hole thus formed can also be used for various applications as follows. For example, a pocket can be formed unless the bottom of one through hole is removed. Convenient for storing small items. The pocket lid member is formed by matching the tip of an oscillating member having a rotating cylindrical portion rotatably inserted into the end of the hollow cylindrical body of the other shaft member into the shape of the opening of the hollow cylindrical body. can do.

This lid member can be used for various purposes. For example, the use as a magnifying glass is born by fitting a lens into the lid member.

If a cloth for cleaning is attached to this lid member, it is used as a cleaning tool for small items.
Further, if a magnet is attached to the back surface of the lid member or the pocket, the sealed letter opener can be attached to the steel furniture and stored, or a clip can be temporarily attached.
When a magnet is attached to the upper surface of the lid member, this sealed letter opener can be stored by adsorbing it to steel furniture, etc., but if you attach and fix it so that the guide rail groove faces sideways, the sealed letter can be handled manually. If you hold it and slide it sideways, you can form perforations at the end of the letter.

If an LED is attached to the pocket of the sealed letter opener and a lens is fitted to the lid member, it can be used as a lighting fixture.

When an off-the-shelf product is used as a rotating disk-shaped perforation creation cutter, the shape of the shaft member must be matched to the shaft mounting shape of the existing perforation creation cutter. for that reason,
Only one of the two shaft members can be a hollow cylindrical shaft member, and the other can be a normal rod-shaped shaft member.

(1) The sealed letter opener of the present invention is provided with two shaft members in a case provided with a slit-shaped guide rail groove into which the end of the sealed letter can be inserted, and is loosely inserted into one of the shaft members so as to be freely rotatable. The disc-shaped perforation cutter and a disc-shaped receiving roller provided with a groove for receiving the outer edge of the perforation cutter on the other side of the shaft member are provided. Inserting and slipping the envelope sideways between the perforation cutter and the disc-shaped receiving roller makes it easy to manually form the perforation for opening the envelope at the end of the envelope. ,
At that time, perforations can be formed without using a cutter mat or the like.

(2) The sealed letter opener of the present invention is safe because it does not directly touch the finger because it is housed in a case in which the blade edge of the perforation cutter is sealed.

(3) In the sealed letter opener of the present invention, the top plate and the bottom plate of the shaft member made of a hollow cylindrical body are cut out to form through holes, so that the guide rail groove of the sealed letter opener faces downward. If you insert your finger into this through-hole to hold the sealed letter opener and insert the upper part of the sealed letter into the guide rail groove, you can form a perforation on the upper part of the sealed letter with the sealed letter As a result, perforations can be formed without damaging the contents of the sealed letter.

(4) Since the sealed letter opener of the present invention is provided with two through holes and formed symmetrically,
It can handle both the right and left handedness. Even in the case of one through hole, since either an index finger or a thumb can be inserted, the holding method is not limited.

(5) The sealed letter opener of the present invention is a pocket in which a portion of the top plate in contact with the end portion of the shaft member formed of a hollow cylindrical body is cut out, and the top plate has an opening and the hollow cylindrical body is a recess. And a lid member for closing the opening of the pocket is provided, so that the pocket can be used as a small case for a pill case, a tablet case, a fragrance or the like.

(6) The sealed letter opener of the present invention can be used as a magnifying glass because the lens is attached to the lid member that closes the opening of the pocket.

(7) The sealed letter opener of the present invention can be used as a portable cleaning tool for wiping eyeglasses and the like because the cloth for cleaning is attached to the lid member that closes the opening of the pocket.

(8) The sealed letter opener of the present invention can be used as a portable lighting device because a lighting device such as an LED is mounted in a pocket and a lens is attached to the lid member.

(9) Since the sealed letter opener of the present invention has a magnet attached to the back surface of the lid member or pocket, the sealed letter opener can be attached to steel furniture for storage.

  The best mode for carrying out the present invention will be described by way of examples.

FIG. 1 shows an embodiment of a sealed letter opener with two through holes, wherein 1 is a sealed letter opener, 6A is an upper case, 6B is a lower case, and 81 and 82 are through holes into which fingers can enter.
FIG. 2 is an exploded view of the sealed letter opener of FIG. 1. The disassembled parts are composed of a rotation guide 2, a paper feed roller 3, a perforation making cutter 4, a blade presser 5, an upper case 6A, and a lower case 6B. .
Reference numeral 9 denotes a slit-shaped guide rail groove for feeding the end of the sealed letter.

As shown in FIG. 4, the upper case 6A is provided with two hollow cylindrical shaft members 71 and 72. The lower case 6B has annular notches 713, 7 provided on the lower inner side of the shaft members 71, 72.
The annular protrusions 83 and 84 that are fitted to the upper case 6A project, and the annular protrusion 62 formed at the lower end of the flange portion 61 at the upper open end of the upper case 6A and the annular fit formed at the upper open end of the lower case 6B. The case 63A is fitted and the cases 6A and 6B are integrated.

The perforation cutter 4 is fitted to the polygonal fixed shaft 22 of the rotation guide 2. For this purpose, a polygonal fitting surface 42 for fitting, which has the same shape as the fixed shaft 22, is formed on the inner periphery of the perforation creating cutter 4. The perforated cutter 4 is fitted on the fixed shaft 22 and the fixed shaft 2
The blade holder 5 having the polygonal fitting surface 51 having the same shape as 2 is fitted, and the perforation creating cutter 4 is fixed. As a result, the perforation creating cutter 4 is loosely mounted on the shaft member 71 via the rotation guide 2.

Reference numeral 3 denotes a paper feed roller, which is rotatably mounted on a shaft member 72 of a hollow cylindrical body. A V-shaped groove 31 is engraved on the outer periphery.

The mutual positions are adjusted so that the cutting edge 41 of the perforation creating cutter 4 enters the V-shaped groove 31 of the paper feed roller 3. That is, as shown in FIG. 5, the cutting edge creation cutter 4 has its cutting edge 41 entering the groove 31 of the paper feed roller 3.
1 is slightly shallower than the depth of the groove 31, and the position of the outer periphery of the paper feed roller 3 is shorter than the length of the notch 43 of the cutting edge 41. If the outer peripheral position of the paper feed roller 3 is longer than the length of the notch 43, the perforation is not formed and the end of the sealed letter is cut off.

The guide rail groove 9 is formed by cutting out a part of the bottom and side surface of the lower case 6B. Further, a guide wall 91 is erected on the annular protrusion 83 side, and a guide wall 92 is erected on the annular protrusion 84 side. The upper case 6A is provided with a guide wall 711 on the shaft member 71 side and a guide wall 712 on the shaft member 72 side. The sealed letter is fed in the lateral direction of the sealed letter opener through the guide rail groove 9 formed between the opposing guide walls 91 and 92 and the guide walls 711 and 712. In order to facilitate the lateral feeding of the sealed letter opener, the guide rail groove 9 is formed in a hyperbolic shape with open end portions 95 and 96 opened as shown in FIG.

FIG. 6 shows a sealed letter opener with a cover according to the second embodiment. In this sealed letter opener, as shown in FIG. 8, the upper case 6 </ b> A and the lower case 6 </ b> B on the shaft member 71 side are perforated to form through holes 81. However, on the shaft member 72 side, both the upper case 6A and the lower case 6B are perforated at portions where they contact the end of the shaft member, but the lower end 73 of the hollow cylindrical body is closed. Accordingly, the through hole 81 is formed in one shaft member 71, but the through hole is not formed in the other shaft member 72, and the pocket 12 is formed.

The swing member 11 is integrated by fitting a cover member 111 to a cover member 112. Further, the cover member 112 is provided with a rotating cylindrical portion 113, and the rotating cylindrical portion 113 is rotatably fitted in the open end 75 on the upper portion of the shaft member 71. Since the open end 75 of the shaft member 71 is provided with an annular protrusion 76 for fitting toward the outside, the swinging member 11 is prevented from falling off. With this configuration, the swinging member 11 can rotate about the shaft member 71 as a rotation shaft as shown in FIG. 7 to open and close the lid member 111 with respect to the pocket 12. This pocket 12 can be used as an accessory case. Reference numeral 18 denotes a strap attachment ring.

FIG. 9 shows a sealed letter opener with a lens according to the third embodiment. The lens 13 is fitted by hollowing out the lid member 111 at the tip of the swing member 11. If the swing member 11 is rotated, it can be used as a magnifying glass.

FIG. 10 shows a sealed letter opener to which a cleaning cloth and a magnet of Example 4 are attached.
A cleaning piece 14 is attached to the back surface of the lid member 111. Further, the back surface of the pocket 12 is recessed, and a magnet 17 is attached thereto. Glasses or the like can be cleaned with the cloth piece 14 that is pivoted on the swing member 11 and attached to the back surface of the lid member 111 at the tip. Further, the magnet 17 is used to suck and store the sealed letter opener on steel furniture or the like. It is also used for sucking and storing clips and the like.

FIG. 11 shows a sealed letter opener with a light source according to the fifth embodiment. An LED lamp 15 and its button battery 16 are attached to the bottom of the pocket 12 as a lighting fixture, and both are connected by a leaf spring 153. A switch 19 is provided in a recess provided on the back side of the pocket 12. When the projection 191 of the switch 19 is pushed against the urging force of the contact 154 made of a leaf spring, the LED 15 becomes the battery 16.
Lights when connected to. A reflecting mirror 152 is provided around the LED 15, and the lid member 11.
1 can be used as a flashlight because the lens 13 is attached.

12 and 13 show an embodiment in which an off-the-shelf perforation cutter is used.
A pipe 64 serving as a rotating shaft projects downward from the inner side of the upper case 6A. This pipe 6
4 is first fitted with a collar 65 and then a ready-made perforated cutter 4B is fitted. Color 65
An annular groove 87 is formed on the upper surface, and a hexagonal groove 88 is formed on the lower surface. The annular groove 87 on the upper surface is fitted to the annular protrusion 85 of the upper case 6 </ b> A and is rotatably attached to the pipe 64. The ready-made perforation creation cutter 4B has a relatively small hexagonal mounting hole 67 at the center of rotation. A hexagonal fitting protrusion 68 having the same shape as the attachment hole 67 of the perforation creating cutter 4B is projected from the stopper member 66. When the stop member 66 is pushed up from below the perforation creating cutter 4B, the fitting protrusion 68 of the stop member 66 passes through the mounting hole 67 of the perforation creating cutter 4B and fits into the hexagonal groove 88 on the lower surface of the collar 65. Fixed together. An annular concave groove 89 is formed on the lower surface of the stop member 66, and the annular protrusion 8 of the lower case 6B.
6, the perforation creating cutter 4 </ b> B is supported with the pipe 64 as a rotation axis. Since the tip of the pipe is bifurcated by the slit 69, the pipe is pushed into the circular concave groove 97 of the lower case 6B and fixed.

FIG. 14 is a view for explaining how to use the sealed letter opener of the present invention. In the case of the sealed letter opener having the two through holes of the first embodiment, the thumb 101 and the index finger 102 are respectively inserted into the through holes 81.
82, and with the sealed letter 10 upright, the upper part of the sealed letter 10 is inserted into the guide rail groove 9. Then, the sealed letter 10 is held and fixed with the left hand, and the sealed letter opener 1 held with the right hand is slid so as to be pulled in the direction of the front arrow. The blade edge 41 of the perforation creating cutter of the sealed letter opener bites into the sealed letter 10 to form the perforated line 103 while rotating together with the paper feed roller.

Even in the case of a left-handed person, a perforation can be formed in the same manner by fixing the sealed letter with the right hand, grasping and sliding the sealed letter opener with the thumb and index finger of the left hand.

In the case of a sealed opener having a single through-hole as shown in Example 2 and below, if the index finger or thumb is inserted into the through-hole and the sealed opener 1 is wrapped and held with the palm, the same method as in FIG. A perforation 103 can be formed at the upper end of the sealed letter.

FIG. 15 is a view for explaining another usage of the sealed letter opener of the present invention. Place the sealed letter opener 1 on the desk or the like so that the guide rail groove 9 faces upward, hold it with your left hand, hold the sealed letter 10 with your right hand, insert the lower end of the sealed letter into the guide rail groove 9, and seal it in the direction of the front arrow. If 10 is slid, the perforation creation cutter rotates to create the perforation 103. However, in this case, if the contents of the sealed letter are sinking downward in the sealed letter, there is a risk of perforating the lower end of the contents. It must be inserted into the sealed letter opener while it is moved to. Therefore, it is recommended to perform the opening operation by the method of FIG.

Oblique view of a sealed letter opener through holes with two first embodiment. The exploded view of FIG. The back view of the sealed letter opener of FIG. The longitudinal cross-sectional view by the AA line of FIG. The cross-sectional view by the BB line of FIG. The perspective view of the sealed letter opener of Example 2 with a lid | cover. The perspective view which shows the state which opened the cover of the sealed letter opener of FIG. The longitudinal cross-sectional view by CC line of FIG. The longitudinal cross-sectional view of the Example with a lens. The longitudinal cross-sectional view of an Example with cloth and a magnet. The longitudinal cross-sectional view of an Example with a lighting fixture. The exploded view of the Example which used the ready-made perforation creation cutter. The longitudinal cross-sectional view of the Example of FIG. Explanatory drawing which shows the usage example of a sealed letter opener. Explanatory drawing which shows the other usage example of a sealed letter opener.

DESCRIPTION OF SYMBOLS 1 Seal opener 11 Oscillating member 111 Cover member 112 Cover member 113 Rotating cylindrical part 12 Pocket 15 LED lamp 2 Rotating guide 3 Paper feed roller 4 Perforation creation cutter 5 Blade presser 6A Upper case
6B Lower case 71 Shaft member 81 Through hole 82 Through hole 9 Guide rail groove

Claims (11)

It consists of two flat plates composed of a top plate and a bottom plate that are parallel to each other, and a side plate that connects the two flat plates to form a case, and is a slit-like shape that can insert the end of a sealed letter over a part of the bottom plate and the side plate. A case with a guide rail groove,
Two shaft members provided in the case and connecting the top plate and the bottom plate;
A disk-shaped perforation making cutter that is loosely rotatably inserted into one of the two shaft members; and
A sealed letter opener comprising a disk-shaped receiving roller provided with a groove that is loosely inserted into the other shaft member of the two shaft members so as to be rotatable and receives a cutting edge on the outer periphery of the perforation creating cutter. The sealed letter opener according to claim 1, wherein either one or both of the two shaft members are formed of a hollow cylindrical body. The sealed letter opener according to claim 2, wherein an inner diameter of the hollow cylindrical body is at least large enough to insert a human finger. The top plate and the bottom plate that are in contact with both ends of the hollow cylindrical body of one or both of the two shaft members are cut out, and the top plate and the bottom plate are penetrated through the hollow cylindrical body. The sealed letter opener according to claim 2 or 3, wherein a through hole is formed. The top plate and the bottom plate which are in contact with both ends of the hollow cylindrical body of either one of the two shaft members are cut out, and a through-hole penetrating the top plate and the bottom plate is formed in the hollow cylindrical body. 3. The pocket according to claim 2, wherein the top plate contacting the upper end of the hollow cylindrical body of the other shaft member is provided with a pocket having an opening and closed at the lower end of the hollow cylindrical body. 3
Seal opener described in 1. An oscillating member having a lid member for closing the opening of the pocket at one end and a rotating cylindrical portion rotatably inserted into the end of the hollow cylindrical body at the other end is provided. The sealed letter opener according to claim 5. The sealed letter opener according to claim 6, wherein a lens of a magnifying glass is attached to the lid member. The sealed letter opener according to claim 6, wherein a cloth for cleaning is attached to the lid member. The sealed letter opener according to claim 5, wherein a light source for illumination is attached in the pocket of the shaft member. The sealed letter opener according to claim 6, wherein a magnet is attached to a surface of the lid member. 6. The sealed letter opener according to claim 5, wherein a recess is provided on the back surface of the pocket of the shaft member, and a magnet is attached to the recess.

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