JP2005153927A - Sealing implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing implement, which is used to seal a packaging bag, such as a mail storage bag or the like, in such a way that fraudulent unsealing is recognizable once sealing work is over so that the fraudulent unsealing is prevented. <P>SOLUTION: The sealing implement is made of a synthetic resin, and includes a tabular part 2 having a projecting cylindrical female part 3, and a cord-like insertion member 7 which extends from one end of the tabular part 2 and can be inserted into the female part 3, all the parts and member formed integrally. The female part 3 has at least one locking nail 3B at the entrance 3C side of a cylinder hole 3A, the locking nail 3B formed to slope and project toward the exit 3D of the cylinder hole 3A. The insertion member 7 has bead-like projections 9, each of which is formed at a prescribed interval, and has a sloped surface 9A formed by reducing the sectional area of the projection 9 in the direction a free end of the insertion member 7 and a locking surface 9B opposite to the sloped surface 9A. The tabular part 2 has a hole 4 between an end of the tabular part 2 closer to the insertion member 7 and the female part 3, ears 6 which are formed on the side of the tabular part 2 by slits 5 extending toward the hole 4, and counter breaking parts 2A which are formed on the front ends of the slits 5, respectively. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention particularly relates to a sealing device for sealing a packaging bag such as a mail storage bag, etc., and is configured to be able to discriminate an unauthorized opening once sealed, thereby preventing unauthorized opening. Regarding improvements.

  A sealing tool for sealing a packaging bag such as a mail storage bag or the like, which is configured so as to be able to prevent unauthorized opening once sealed, is registered in Japanese Patent No. 1183807 (Patent Document 1). ).

  As shown in FIGS. 6A to 6C, the sealing tool 20 has a flat display portion 22 having a female portion 21 at an end thereof, and a tip provided to be connected to the display portion 22. It comprises a non-slip rib 23A and a linear band portion 23 having a plurality of engaging portions 23B in the intermediate portion. By inserting the band portion 23 into the engaging hole 21A of the female portion 21 and engaging the loop, It is a sealing band with a display part to form.

  This loop can be wound around the mouth of the packaging bag and then pulled by pulling the tip of the band portion 23 to tighten the mouth of the packaging bag and seal it so that it cannot be opened. The display unit 22 can display various data such as a barcode.

  Further, another type of sealing device for sealing a packaging bag such as a mail storage bag, which is intended to be configured to be able to discriminate unauthorized opening once sealed, is disclosed in Japanese Patent Laid-Open No. 8- No. 335041 (prior art document 2).

  As shown in FIG. 7 (described as FIG. 1 in the prior art document 2), the sealing tool 30 is integrally formed with a flat display plate 31 and an upper end portion 32 of the display plate 31. A formed flexible hanging part 35 having a retaining part 33, a hell retaining hole 36 opened at the other end on the upper side of the display panel 31, and a peripheral wall portion around the hell retaining hole 36 are provided. It is comprised from the fracture | rupture operation part 38 used as the fracture thin film 37. FIG.

  When this sealing tool is used, the hanging piece 35 is pulled to break the connection piece 39 that temporarily holds the hanging part 35 on one side of the display board 31, and the hanging part 35 is attached to the mail bag ( The mail bag is sealed by looping around the mouth portion (not shown) in a loop and inserting and locking the retaining portion 33 of the hanging portion 35 into the hell retaining hole 36 so that it cannot be removed. It is.

  When attempting to open the sealed mail bag, the breaking operation portion 38 is pulled to break the connection piece 39 temporarily fixing the breaking operation portion 38 to the other side portion of the display plate 31, and the breaking thin film 37. The hell retaining hole 36 is opened, the retaining portion 33 of the suspending portion 35 is removed from the hell retaining hole 36, the suspended portion 35 is removed, and the mail bag is opened.

  Therefore, if an unauthorized person breaks the sealing tool and opens the mail bag illegally, the opening is naturally detected, thereby psychologically restraining the mail bag from being opened illegally. The effect should be expected.

  Further, in a third type sealing tool (not shown), as a means for opening, a band-like binding band (corresponding to the band portion 23 of the prior document 1 and the hanging portion 35 of the prior document 2) is used for breaking at a predetermined location. There has also been proposed a structure in which, when opening, a twisting band is broken at a portion weakened by the formation of the hole by twisting the front and rear portions where the hole is provided, and opening the portion.

  Each of the three sealing tools such as the prior literature has problems.

  First, although the sealing tool of the prior art document 1 can be strongly sealed, the strength of the band part 23 is strong and it is impossible to open it by breaking it with bare hands. It is necessary to break the portion of the band portion 23 that forms the loop and fastens the bag with the loop. At that time, it may be quite difficult to insert the blade between the bag and the band portion that strongly tightens the bag, and there is a risk of damaging the bag and the hand.

  Next, since the size of the loop formed by the suspending portion 35 that closes the mouth of the bag is constant, the sealing tool of the prior art document 2 has no structural binding force, and therefore a person who tries to open the bag illegally. The bag is pulled from the loop of the suspending portion 35 by pulling the bag in the pulling direction while taking care not to break the broken thin film 37 of the hell retaining hole 36 with which the retaining portion 33 of the suspending portion 35 is engaged. It is not impossible to pull out the mouth gradually and open it. And after stealing the contents in the bag, the bag mouth is inserted into the loop of the suspending portion 35 and gradually pulled while taking care not to break the broken thin film 37. It is not impossible to impersonate the state.

  Therefore, it can be said that the sealing tool of the prior art document 2 has insufficient binding or sealing function.

  Furthermore, in the case of the third type sealing device, there is a problem that it is difficult to break the binding band in practice by the twisting operation by twisting the front and rear portions of the hole, and therefore a considerable force must be applied. .

  Therefore, if both sides in the lateral direction of the hole are formed to be thin and weakened, and are configured to be able to be broken by twisting, the weakened part will be torn off due to the tension applied in the longitudinal direction at the time of sealing. There is a difficulty that happens.

  The present invention has a sufficiently strong binding or sealing function, has a simple structure, can be manufactured at low cost, can be reliably sealed easily and easily, and can be easily opened with bare hands. The aim is to provide a sealing tool.

  The sealing tool according to the present invention for solving the above-described problems is configured as follows.

  1) A plate-like portion 2 formed by projecting a cylindrical female portion 3 and a synthetic resin having a string-like insertion member 7 that can be inserted into the female portion 3 extending from one end of the plate-like portion 2 are integrally formed. The female portion 3 is provided with at least one locking claw 3B on the inlet 3C side of the tube hole 3A, and the locking claw 3B is formed so as to protrude in the direction of the outlet 3D. The member 7 has bead-like projections 9 at a predetermined interval. The bead-like projections 9 have an inclined surface 9A whose cross-sectional area is narrowed in the free end direction, and a locking surface 9B on the opposite side of the inclined surface 9A. Further, in the plate-like portion 2, an ear portion 6 is formed on the side portion of the plate-like portion 2 by a hole 4 between the end portion on the insertion member 7 side and the female portion 3 and a slit 5 toward the hole 4. In addition, a rupture portion 2 </ b> A facing the tip end portion of the slit 5 is formed.

  2) The insertion member 7 has a reverse insertion preventing portion 11 on the free end side from the bead-shaped protrusion 9.

  3) An anti-slip rib 6A is formed at the free end of the ear portion 6.

  4) The plate-like portion 2 is provided with a display portion 2C.

  With the above-described configuration, the sealing device according to the present invention has a simple structure and low manufacturing costs, and has a sufficiently powerful sealing function, and can easily and easily perform sealing operations such as a bag mouth. it can.

  Furthermore, because the hole formed in the plate-like portion of the sealing tool and the slit toward this hole formed the breakage portion and the ear portion in the plate-like portion, if the ear portion is pulled so as to expand, the breakage portion Since the plate-like part is easily ruptured from the broken part to the hole due to the generated local stress and the plate-like part is unrecoverably broken, the opening of the bag mouth is released and the unsealing operation can be easily performed. .

  In addition, even if there is a person who intends to release the seal illegally, once the seal is opened, the sealing tool is destroyed and the recovery of the seal is impossible, so the unauthorized opening must be revealed. It can be expected to have an effect of learning psychological resistance and restraint to commit illegal opening and restraining execution.

  Embodiments of the present invention will be described with reference to the drawings.

  1 is a front view of a sealing device according to the present invention, FIG. 2 is an enlarged sectional view taken along line AA of FIG. 1, FIG. 3 is a plan view thereof, and FIG.

The sealing tool 1 is a thin and thin plate-like portion 2 and a string-like insertion member 7 extending from one end of the plate-like portion 2 and is elongated as a standard size with a total length of about 210 mm and a maximum width of about 6 mm. Are integrally molded.
(1) First, the structure for sealing the sealing tool 1 will be described.

  On the surface of the plate-like part 2, a cylindrical female part 3 is formed so as to protrude, and preferably on one opening 3C side (plate-like part 2 side) in the cylindrical hole 3A penetrating the female part 3 Four locking claws 3B are provided, and this locking claw 3B is connected to the other opening from the inner wall on the side of one opening 3C in the cylindrical hole 3A (the step that becomes the boundary between the two steps). In the 3D direction, the projections are formed so as to be inclined so as to reduce the distance from each other (FIG. 2). The four locking claws 3B are close to each other at their free ends, and the free ends are They are arranged in an arc shape when viewed from the front (FIG. 1). Further, the latching claw 3B is elastic so as to be able to swing in the lateral direction.

  The insertion member 7 includes a plurality of flexible string portions 8 and a plurality of bead-shaped projections 9 having a diameter larger than that of the string portions 8 and having a small flexibility. A distal end portion 10 having the same or smaller diameter as the string portion 8 is connected to the side, and the free end of the distal end portion 10 forms a round shape. A reverse insertion preventing portion 11 having a diameter larger than that of the string portion 8 is formed between the distal end portion 10 and the most advanced string portion 8 or the bead-shaped protrusion 9.

  The bead-shaped projection 9 has an inclined surface 9A having a reduced cross-sectional area in the free end direction, and a locking surface 9B perpendicular to the longitudinal direction of the insertion member 7 on the opposite side of the inclined surface, and the maximum diameter is The diameter of the arc formed by the free ends of the four locking claws 3B of the female portion 3 is larger than that of the arc formed by the free ends of the locking claws 3B. Have.

  In the female part 2 and the insertion member 7 configured as described above, when the insertion member 7 is inserted into the female part 2, the distal end part 10 of the insertion member 7 is gripped and the end part of the most advanced 10A is held. Inserting from one opening (inlet) 3C of the cylindrical hole 3A of the female part 3 and gripping and pulling the tip 10 protruding from the other opening 3D (exit) of the cylindrical hole 3A, the insertion member 7 The plurality of bead-shaped projections 9 pass through the locking claws 3B one after another while pressing the inclined surfaces of the locking claws 3B in the cylindrical holes 3A of the female portion 3 with the inclined surfaces 9A and repelling them outward.

  Next, when the pulling operation of the distal end portion 10 is stopped, the engagement surface 9B of the last bead-shaped protrusion 9 that has passed through the engagement claw 3B returns to the original position by the elastic force. The engaging member 3B and the bead-like projection 9 perform a ratchet function.

  The portion of the insertion member 7 not inserted in the female portion 2 forms a loop, which is used to tighten and seal the mouth of the bag.

  Further, when the insertion member 7 is inserted into the female portion 2, if the distal end portion 10 of the insertion member 7 is erroneously inserted from the other opening 3 </ b> D of the cylindrical hole 3 </ b> A of the female portion 3, it is formed next to the distal end portion 10. The reverse insertion preventing portion 11 thus made abuts against the tip of the locking claw 3B in the cylindrical hole 3A of the female portion 3 with a locking surface formed perpendicular to the longitudinal direction of the insertion member 7, but the locking claw 3B Resists pressing in the direction opposite to the protruding direction, and thus hardly sways or bends. Therefore, further insertion of the insertion member 7 is hindered. You can immediately know what happened. At this time, even if the latching claw 3B is slightly swung or bent, the tip of the latching claw 3B only moves in the direction of blocking the hole 3A in the center of the hole. Further insertion of the member 7 is prevented.

  In order to prevent the insertion from the wrong reverse direction as described above, an arrow 2B is displayed in the vicinity of one opening 3C of the cylindrical hole 3A of the female part 3 on the back surface of the plate-like part 2 so as to be correct. It is preferable to place it so as to indicate the insertion direction.

  Further, the formation of a plurality of anti-slip ribs 12 at the distal end portion 10 of the insertion member 7 means that the bag mouth portion is strongly clamped and sealed by the loop of the insertion member 7, so that the grip is strong by hand. This is a preferable treatment for exerting force and strong tensile force.

  In addition, a plate-like display portion 2C is formed on the opposite side of the insertion member 7 of the plate-like portion 2 by extending, and a sticker for displaying information about contents stored in the bag is attached to the display portion 2C. It is preferable that the printer can be directly printed.

FIG. 5 shows a state in which the mouth portion of the bag A is sealed with the sealing tool 1 having the above configuration.
(2) Next, the structure for releasing the sealing of the sealing tool 1 will be described.

  As shown in FIGS. 1 and 3, the plate-like portion 2 is provided with an oval hole 4 between the end portion on the insertion member 7 side and the female portion 3, and the end portion of the plate-like portion 2. A portion between the slit 4 and the hole 4 facing the sharp V-shaped tip of the slit 5 is formed by forming two slits 5 cut acutely into a V shape approaching the hole 4 from Breaking portions 2 </ b> A are formed at (two locations), and two ear portions 6 are formed on both sides of the plate-like portion 2.

  It is important that the shape of the slit 5 is formed with a narrowed tip, and is not limited to an acute-angled V shape. May be formed so as to leave a thin skin that can be immediately separated by a lateral pull. In these cases, there is an advantage that it is inconspicuous and difficult to understand by a third party. Similarly, it is possible to replace the slit 5 by forming a perforation (a continuous small hole) that can be immediately cut off by pulling in the horizontal direction.

  Further, the shape of the hole 4 is not limited to an ellipse.

  Preferably, a non-slip rib 6A is formed at the free end of the ear 6 for gripping by hand.

  In the plate-like portion 2 configured as described above, in order to open the sealing tool 1 that seals the mouth portion of the bag, the both ear portions 6 are grasped and the space between both ear portions 6 is expanded. When a little force is applied to pull left and right, or twisting up and down, a local stress is generated at both fractured portions 2A, and both fractured portions 2A are easily torn to the hole 4 and inserted into the plate-like portion 2. Since the space between the members 7 is broken, the loop of the insertion member 7 is released and the sealing of the bag mouth is released. The breaking portion 2A is easily broken by a large local stress generated by the lateral pulling of the sealing tool 1 due to the expansion at the time of opening.

  However, even when the shape of the hole 4 expands in the longitudinal direction with respect to the tensile force applied in the longitudinal direction of the sealing tool 1 during sealing, the fracture portion 2A itself has a strength to resist the tensile force in the longitudinal direction. It has almost no local stress and does not break.

  Further, a linear concave portion connecting both the holes 4 and 5 is formed in a portion between the hole 4 and the slit 5 so as to be thin, and further rupture due to a stress generated in the rupture portion 2A by a tension applied in the lateral direction It can also be configured to facilitate.

  With the above configuration, manual sealing can be released very easily.

  Moreover, even if there is a person who intends to release the seal illegally, once the seal is opened, the sealing tool 1 is destroyed and the recovery of the seal is impossible. Therefore, it can be expected to have an effect of learning psychological resistance and restraint to commit illegal opening, and restraining and deterring the execution.

It is a front view of the sealing tool of this invention. It is an AA line expanded sectional view of FIG. It is a top view of a sealing tool. It is a rear view of a sealing tool. It is explanatory drawing which shows the state which sealed the packaging bag with the sealing tool. (A) It is a front view of the sealing tool of the prior art reference 1. (B) It is an enlarged view of the B section of the above-mentioned figure (A). (A) It is a top view of the sealing tool of prior art reference 1. It is explanatory drawing of the sealing tool of the prior document 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sealing tool 2 Plate-shaped part 2A Breaking part 2B Arrow 2C Display part 3 Female part 3A Cylinder hole 3B Locking claw 3C Opening part (entrance)
3D opening (exit) 4 hole 5 slit 6 ear 6A rib 7 insertion member 8 string 9 male 10 tip 11 reverse insertion prevention 12 rib
20 Sealing Tool of Prior Literature 1 30 Sealing Tool of Prior Literature 2

Claims (4)

A plate-like portion 2 formed by projecting a cylindrical female portion 3 and a synthetic resin having a string-like insertion member 7 that can be inserted into the female portion 3 extending from one end of the plate-like portion 2 are integrally formed. A sealing tool,
The female portion 3 is provided with at least one locking claw 3B on the inlet 3C side of the cylindrical hole 3A, and the locking claw 3B is formed so as to protrude in the direction of the outlet 3D. The bead-shaped protrusion 9 has an inclined surface 9A having a reduced cross-sectional area in the free end direction, a locking surface 9B on the opposite side of the inclined surface, An ear 6 is formed on the side of the plate-like portion 2 by a hole 4 between the end on the insertion member 7 side and the female portion 3, and a slit 5 toward the hole 4, and at the tip of the slit 5. A sealing tool in which a facing fracture portion 2A is formed. The sealing member according to claim 1, wherein the insertion member (7) has a reverse insertion prevention part (11) on the free end side from the bead-shaped protrusion (9). The bag sealer according to claim 1 or 2, wherein an anti-slip rib (6A) is formed at a free end of the ear (6). The sealing tool according to claim 1, wherein a display portion 2 </ b> C is provided on the plate-like portion 2.

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