JP2020111380A - Packaging fastener - Google Patents

Abstract

To provide a packaging fastener that can reduce a load when removing a key body from a base body.SOLUTION: A packaging fastener includes: a base body having a cylindrical part and a first projection part on an outer peripheral surface of the cylindrical part; two hook parts for rotating to a first position which is connected to the base body via a first hinge part and is positioned in a state where unconnected portions approach each other, and to a second position which is positioned outside the cylindrical part in a state where the unconnected portions separate from each other; a key part having an insertion part which can be inserted into the cylindrical part and connected to the base body by a second hinge part; and a movement blocking part provided on a displaceable convex part in a direction orthogonal to an insertion direction in which the insertion part is inserted into the cylindrical part and for blocking the insertion part from moving in a direction opposite to the insertion direction with respect to the cylindrical part. When the insertion part is inserted into the cylindrical part and the hook part is moved from the first position to the second position, the movement blocking part is brought into a blocking state. When a predetermined force is applied to the insertion part, the movement blocking part is displaced in a direction orthogonal to the insertion direction to release the blocking state, and the insertion part is moved from the cylindrical part in an opposite direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to packaging fasteners.

2. Description of the Related Art There is known a fastener for packaging in which cardboards to be stored for transportation of articles are joined by utilizing through holes of the cardboards so that the cardboards are not displaced during transportation.

As such a packaging fastener, a hook is formed by inserting a key body into the tubular portion by passing a base body having a tubular portion through the through hole in a state where two cardboards are made to overlap each other. There is known one in which a member is rotated to be locked on a corrugated board surface and an engaging means of a key body is engaged with a hook member (for example, Patent Document 1).

However, in the packaging fastener described in Patent Document 1, when the push-opening body is inserted into the tubular portion, the protrusion provided on the inner wall of the tubular portion and the protrusion provided on the outer wall of the push-opening body. By engaging with, the movement in the direction opposite to the insertion direction is blocked, but since the inner wall or the outer wall itself is displaced in the direction orthogonal to the insertion direction of the push-open body, There is a problem that a large force is required and it becomes difficult to remove the key body from the base body.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a packaging fastener that can reduce the load when the key body is removed from the base body.

In order to solve the above-mentioned problems and achieve the object, the present invention provides a base body having a tubular portion and a first protrusion provided on an outer peripheral surface of the tubular portion, and 1 a first position, which is rotatably connected via a hinge part, in which unconnected parts are located close to each other; The base having at least two hook portions that rotate to a second position located outside the tubular portion when viewed from the opening direction of the opening of the portion, and an insertion portion that can be inserted into the tubular portion. The key portion rotatably connected to the body through the second hinge portion, and the convex portion that is displaceable in a direction orthogonal to the insertion direction in which the insertion portion is inserted into the tubular portion are provided. At least one movement blocking portion that blocks a movement of the key portion in the direction opposite to the insertion direction with respect to the tubular portion, and the key portion is centered on the second hinge portion. By being rotated and inserting the insertion part into the tubular part, the insertion part comes into contact with the hook part, and the hook part moves from the first position to the second position, thereby preventing the movement. The blocking portion is placed in the blocking state, and the blocking portion is displaced in a direction orthogonal to the inserting direction by applying a predetermined force from the blocking state to the inserting portion in a direction opposite to the inserting direction. The state is released, and the insertion part is moved in a direction opposite to the insertion direction with respect to the tubular part.

According to the present invention, it is possible to reduce the load when removing the key body from the base body.

FIG. 1 is a perspective view of the packaging fastener according to the embodiment from a direction in which a fitting convex portion can be visually recognized. FIG. 2 is a perspective view of the packaging fastener according to the embodiment from a direction in which the opening of the key body can be visually recognized. FIG. 3 is a perspective view of a key body of the packaging fastener according to the embodiment. FIG. 4 is a view of the packaging fastener according to the embodiment as viewed from the fitting convex side of the key body. FIG. 5 is a sectional view taken along line AA of FIG. FIG. 6 is an enlarged view of the vicinity of the rib of the key body of the packaging fastener according to the embodiment. FIG. 7 is a diagram illustrating an operation of fitting the key body to the base body in the packaging fastener according to the embodiment. FIG. 8 is a diagram illustrating an operation of fitting the key body to the base body in the packaging fastener according to the embodiment. FIG. 9: is a figure explaining the operation|movement which removes the key body fitted by the base body in the packaging fastener which concerns on embodiment. FIG. 10: is sectional drawing of the key body of the fastener for packaging which concerns on the modification 1 of embodiment. FIG. 11: is a perspective view of the key body of the packaging fastener which concerns on the modified example 2 of embodiment. FIG. 12: is a figure explaining the structure of the fitting convex part of the key body of the packaging fastener which concerns on the modified example 3 of embodiment. FIG. 13: is a figure explaining the structure of the fitting convex part of the key body of the packaging fastener which concerns on the modified example 4 of embodiment. FIG. 14: is a figure corresponding to the BB sectional drawing of FIG. 7 about the fastener for packaging which concerns on the modification 5 of embodiment. FIG. 15 is a side view of the key body of the packaging fastener according to the modified example 6 of the embodiment.

Hereinafter, an embodiment of a packaging fastener according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments, and constituent elements in the following embodiments include those that can be easily conceived by those skilled in the art, those that are substantially the same, and those that are in a so-called equivalent range. Is included. Furthermore, various omissions, replacements, changes and combinations of the constituent elements can be made without departing from the scope of the following embodiments.

(Overall structure of packaging fasteners)
FIG. 1 is a perspective view of the packaging fastener according to the embodiment from a direction in which a fitting convex portion can be visually recognized. FIG. 2 is a perspective view of the packaging fastener according to the embodiment from a direction in which the opening of the key body can be visually recognized. The overall structure of the packaging fastener according to the present embodiment will be described with reference to FIGS. 1 and 2.

As shown in FIGS. 1 and 2, the packaging fastener 1 according to the present embodiment has a base body 14 and a key body 19 (key portion).

The base body 14 is a member for fixing to the corrugated board by being inserted into a through hole formed in the corrugated board or the like (hereinafter, simply referred to as a corrugated board). The base body 14 has a hollow tubular portion 15 in which the key body 19 is housed and which is inserted into the through hole formed in the corrugated cardboard described above, and is outside the peripheral portion of one opening of the tubular portion 15. A projecting flange portion 16 is formed as a first projecting portion extending toward. The opening of the tubular portion 15 has a shape in which the length in one direction is longer than the length in the other direction. In addition, the tubular portion 15 is a pair of hinges formed on inner walls facing each other in the lateral direction when viewed from the opening of the tubular portion 15 along the longitudinal direction when viewed from the opening. A pair of L-shaped hook members 18 (hook portions) are provided via the portion 17 (first hinge portion). Further, one end side in the longitudinal direction of the tubular portion 15 of the flange portion 16 is connected to the key body 19 via a connecting hinge portion 21 (second hinge portion).

Although the flange portion 16 is formed to extend from the peripheral edge of the opening of the tubular portion 15, the present invention is not limited to this, and the flange portion 16 extends outward from the outer peripheral surface of the tubular portion 15. It may be extended and formed. Further, although the hinge portion 17 is provided on the inner wall of the tubular portion 15, the hinge portion 17 is not limited to this, and may be provided on the peripheral portion of the opening of the tubular portion 15, for example. Further, although one end side of the collar portion 16 is connected to the key body 19 via the connecting hinge portion 21, the invention is not limited to this, and the tubular portion 15 is connected to the connecting hinge portion 21. It may be connected to the key body 19 via.

One end of the hook member 18 is connected to the hinge portion 17, and the other end of the hook member 18 projects from the opening portion on the opposite side to the opening portion of the tubular portion 15 where the collar portion 16 is provided, as shown in FIG. .. Further, the hook member 18 rotates around the hinge portion 17 when the key body 19 is inserted into the tubular portion 15, and the other end abuts on the cardboard. As a result, the two corrugated boards are sandwiched between the collar portion 16 and the hook member 18. The operation of rotating the hook member 18 around the hinge portion 17 will be described later with reference to FIGS. 7 and 8. Further, in the two hook members 18, an end portion (a portion not connected) opposite to the end portion connected to the hinge portion 17 of the hook member 18 is, as shown in FIG. Therefore, it is provided that the respective distances are close to each other.

Further, the outer wall of the cylindrical portion 15 of the base body 14 is detached so that when the cylindrical portion 15 is inserted into a through hole formed in a corrugated board, the base body 14 is not easily removed from the through hole. A plurality of prevention ribs 29 are provided. As shown in FIG. 2, the fall prevention rib 29 extends from the opening portion of the tubular portion 15 where the flange portion 16 is provided toward the opening portion on the opposite side, that is, along the axial direction of the tubular portion 15. It is provided on the outer wall of the tubular portion 15.

The key body 19 is a member that is inserted into the tubular portion 15 of the base body 14 in order to mount the packaging fastener 1 on a cardboard. The key body 19 has a rectangular parallelepiped push-open body 20 (insertion portion) having a width substantially the same as the width in the lateral direction inside the tubular portion 15 of the base body 14.

As shown in FIG. 2, a rectangular upper surface 20b (opposite surface) is formed on one side of the rectangular parallelepiped shape of the push-opening body 20, and one of the two short sides of the upper surface 20b extends outward. A connecting piece 22 is formed so as to extend parallel to the upper surface 20b. The upper surface 20b corresponds to the surface of the push-open body 20 on the side opposite to the side inserted into the tubular portion 15. The tip of the connecting piece 22 extending from the upper surface 20b is connected to the connecting hinge portion 21. That is, the connecting piece 22 of the key body 19 is connected to the base body 14 via the connecting hinge portion 21.

Further, the key body 19 has a projecting flange portion 25 as a second projecting portion extending outward from the two long sides of the upper surface 20b in a flange shape. Further, as shown in FIG. 2, an opening 27 into which the user's finger can be inserted is formed in the upper surface 20b of the key body 19, and from the edge of the opening 27 toward the inside of the push-open body 20. An inclined plate 28 that extends and guides the inserted finger is provided. Although the brim portion 25 is formed so as to extend from the upper surface 20b of the key body 19, the invention is not limited to this. The brim portion 25 extends outward from the outer peripheral surface of the push-open body 20. It may be formed.

Further, the push-opening body 20 has fitting protrusions 24a to 24d formed on the outer wall surfaces 20c and 20d in the longitudinal direction with respect to the outer wall surfaces 20e and 20f in the lateral direction when viewed from the insertion direction into the tubular portion 15. (Convex portion, movement blocking portion). The fitting protrusions 24a to 24d are formed in the outer wall surfaces 20c and 20d of the push-opening body 20 in the vicinity of the opening on the side opposite to the upper surface 20b. Also, of the two longitudinal outer wall surfaces 20c, 20d of the push-opening body 20, the fitting projections 24a, 24b are formed on one outer wall surface 20c, and the fitting projections 24c, 24d are formed on the other outer wall surface 20d. Are formed. In addition, the fitting convex portions 24a and 24c of the convex shaped portions 31a and 31c (first convex shaped portions) are formed at positions close to the connecting hinge portion 21, and are similar to the facing positions of the outer wall surfaces 20c and 20d, respectively. It is formed in a shape. Further, the fitting convex portions 24b and 24d of the convex shaped portions 31b and 31d (second convex shaped portion) are formed at positions farther from the connecting hinge portion 21 than the fitting convex portions 24a and 24c, and the outer wall surface 20c, respectively. , 20d facing each other in the same shape.

Further, as shown in FIG. 1, the flange portion 16 of the base body 14 is formed with a recess 26 so that the connecting piece 22 of the key body 19 can be accommodated when the key body 19 is inserted into the base body 14. There is. Further, as shown in FIG. 1, of the two short sides of the opening of the push-open body 20 opposite to the upper surface 20b, the side closer to the connecting hinge portion 21 is referred to as a rear end portion 20a. ..

The packaging fastener 1 according to the present embodiment is made of a flexible and bendable material such as polypropylene.

(Structure of slit and rib in key body)
FIG. 3 is a perspective view of a key body of the packaging fastener according to the embodiment. FIG. 4 is a view of the packaging fastener according to the embodiment as viewed from the fitting convex side of the key body. FIG. 5 is a sectional view taken along line AA of FIG. FIG. 6 is an enlarged view of the vicinity of the rib of the key body of the packaging fastener according to the embodiment. The configurations of the slits 30 and the ribs 33 formed in the key body 19 will be mainly described with reference to FIGS. 3 to 6.

As shown in FIGS. 3 and 4, the fitting protrusions 24 a and 24 b described above have a protrusion shape that protrudes outward from the outer wall surface 20 c of the push-open body 20. Further, the fitting protrusions 24c and 24d have a protrusion shape that protrudes outward from the outer wall surface 20d of the push-opening body 20. In addition, as shown in FIGS. 3 and 5, the push-opening body 20 extends in the direction from the outer wall surface 20e of each of the fitting protrusions 24a to 24d to the outer wall surface 20f in the peripheral portion of the opening opposite to the upper surface 20b. Slits 30 (grooves) are formed in the direction from both ends (hereinafter, simply expressed as both ends (parts) of the fitting protrusions 24a to 24d) to the upper surface 20b. As described above, the slits 30 are formed on both sides of each of the fitting protrusions 24a to 24d, so that the protrusion-shaped portion 31a having the fitting protrusions 24a to 24d, respectively, as shown in FIGS. ~31d are formed. By forming such plate-shaped convex portions 31a to 31d, by applying a stress toward the inside of the push-open body 20 to the fitting convex portions 24a to 24d, the convex portions 31a to 31d are It will be elastically deformed easily. The fitting protrusions 24a to 24d correspond to the "movement preventing portion" of the present invention. The same applies to the modified examples of the present embodiment.

As shown in FIGS. 3 and 5, the slit 30 described above is parallel to the direction toward the upper surface 20b of the push-open body 20, that is, the insertion direction of the push-open body 20 into the tubular portion 15 of the base body 14. However, the present invention is not limited to this. That is, the direction in which the slits 30 are formed is not limited to the above-described direction, provided that convex parts such as the convex parts 31a to 31d are formed. Moreover, it is preferable that the convex portions 31a to 31d have a plate shape.

As shown in FIG. 5, the above-described inclined plate 28 extends from the edge of the opening 27 toward the opening on the opposite side of the upper surface 20b so as to have a slope shape. It has a function to guide the user's finger inserted from.

Further, in the inside of the key body 19, a corner portion formed by the inner wall surface on the side opposite to the connecting piece 22 and the inner wall surface of the upper surface 20b has a cross section taken along the line AA as shown in FIGS. 5 and 6. A plurality of ribs 33 are erected in parallel with. As shown in FIG. 5 and FIG. 6, the plurality of ribs 33 are formed with an end portion 33a having an arc shape that is convex toward the above-mentioned corner side, that is, is convex toward the inner wall surface of the upper surface 20b. By thus forming the end portions 33a on the plurality of ribs 33, the finger inserted from the opening 27 into the key body 19 fits into the end portion 33a, and the key body 19 is removed from the base body 14. In this case, the load on the fingertip can be reduced.

Further, in the opening 27 formed on the upper surface 20b of the push-opening body 20, the edge on the side opposite to the edge on which the inclined plate 28 is formed is an arc-shaped end 19a that is convex in the direction away from the connecting piece 22. Has become. Since the arc-shaped end portion 19a is formed in this manner, like the end portion 33a of the rib 33, the finger inserted from the opening 27 into the key body 19 fits into the end portion 19a, and When removing the key body 19 from the body 14, the load on the fingertip can be reduced.

(Mating operation of key body to base body)
7 and 8 are views for explaining the operation of fitting the key body to the base body in the packaging fastener according to the embodiment. The operation of inserting and fitting the key body 19 into the base body 14 in the packaging fastener 1 according to the present embodiment will be described with reference to FIGS. 7 and 8.

As shown in FIG. 7( a ), the hinge portion 17 described above is tilted so that the distance from the flange portion 16 becomes smaller from the connecting hinge portion 21 side toward the opposite side inside the tubular portion 15. It is provided.

First, as shown in FIG. 7A, in the packaging fastener 1, the key body 19 is not inserted into the tubular portion 15 of the base body 14 at all. As shown in FIG. 8A, the user abuts the two corrugated boards 40 and 41 so that the through holes 40 a and 41 a formed in the corrugated boards 40 and 41 overlap with each other, and the cylindrical portion 15 of the base body 14 is attached. Then, the flange portion 16 is brought into contact with the surface of the corrugated board 40 by inserting the flange portion 16 into the through holes 40a and 41a.

Next, as shown in FIG. 8A, the user folds the key body 19 toward the base body 14 side with the connecting hinge portion 21 and rotates the key body 19, that is, the key body 19 with respect to the base body 14. Then, the hinge portion 21 for connection is rotated about its center to insert the push-open body 20 of the key body 19 into the tubular portion 15 of the base body 14. When the user further inserts the push-opening body 20 of the key body 19 into the tubular portion 15, as shown in FIG. 7B, the rear end portion 20 a of the push-opening body 20 becomes the tubular portion 15. The hook member 18 inside. In this state, the end portions of the hook member 18 that are not connected to the hinge portion 17 are at positions (first position) in a state where they are close to each other.

When the user further inserts the push-opening body 20 of the key body 19 into the tubular portion 15, as shown in FIG. 8B, the hook member 18 receives the load from the push-opening body 20, and the hinge. Starting to rotate around the part 17. That is, as shown in FIG. 8B, the two hook members 18 rotate about the hinge portion 17 having one end connected to each other in a direction in which the other ends are separated from each other. At this time, as described above, the hinge portion 17 is provided so as to be inclined so that the distance from the flange portion 16 becomes smaller as going from the connecting hinge portion 21 side to the opposite side, as described above. Resistance when the key body 19 is inserted into the body 14 is relieved. Therefore, the load on the connecting piece 22 can be reduced, the load on the connecting piece 22 when the packaging fastener 1 is repeatedly used is reduced, and the breakage and extension of the hinge portion 17 are reduced. ..

At this time, the fitting protrusions 24a to 24d formed on the push-opening body 20 are directed from the hinge portion 17 and the hook member 18 toward the inside of the push-opening body 20, as shown in FIG. 8B. Receive stress. As a result, the convex portions 31a to 31d are elastically deformed and displaced so that the fitting convex portions 24a to 24d are directed toward the inside of the push-opening body 20. In this state, the push-opening body 20 of the key body 19 is in a state of being subjected to the inward stress from the hinge portion 17 or the hook member 18 via the fitting convex portions 24a to 24d, so that the key body 19 Is locked to the base body 14. That is, in this state, unless a new load is applied to the key body 19, that is, the force with which the push-open body 20 is pulled out from the tubular portion 15, the above-described locked state continues.

When the user further inserts the push-opening body 20 of the key body 19 into the inside of the tubular portion 15, the hook member 18 receives the load from the push-opening body 20 to center the hinge portion 17 connected at one end. Then, as shown in FIG. 8C, the other end abuts on the surface of the cardboard 41. In this state, the pivotal movement of the hook member 18 about the hinge portion 17 is stopped, and as shown in FIGS. 7C and 8C, the push-opening body 20 of the key body 19 is It is in a state of completely entering the inside of the shape portion 15. In this state, the end portions of the hook member 18 that are not connected to the hinge portion 17 are separated from each other, and are located outside the tubular portion 15 when viewed from the opening direction of the opening portion of the tubular portion 15 (second portion). It will stop at the position). Further, the collar portion 16 and the hook member 18 are in a state of sandwiching the two cardboards 40 and 41, and the cardboards 40 and 41 are joined.

Further, when the other end of the hook member 18 comes into contact with the surface of the corrugated board 41 and the pivotal movement about the hinge portion 17 stops, the fitting projections 24a to 24d are respectively received from the hook member 18. Relieved of stress. Then, the elastically deformed convex portions 31a to 31d return to their original states, the fitting convex portions 24a to 24d engage with the corner portions of the L-shaped hook member 18, and the key body 19 is , And is fitted and fixed to the base body 14. That is, the push-opening body 20 is prevented from moving in the direction opposite to the insertion direction with respect to the tubular portion 15 by the engagement of the fitting convex portions 24 a to 24 d with the hook member 18, and is in a blocking state. Become.

Further, when the push-opening body 20 of the key body 19 is in a state of completely entering the inside of the tubular portion 15, since the projecting flange portion 25 is formed around the upper surface 20b of the key body 19. At the same time when the insertion of the key body 19 into the tubular portion 15 is completed, the collar portion 25 comes into contact with the peripheral edge portion of the opening portion of the tubular portion 15 of the base body 14 to prevent further intrusion. Further, since the flange portion 16 of the base body 14 is provided with the recessed portion 26 that is recessed by the thickness of the connecting piece 22 of the key body 19, the connecting piece 22 fits in the recessed portion 26, and the flange of the base body 14 is accommodated. The portion 16 and the upper surface 20b of the key body 19 become substantially flush with each other when the fixing of the key body 19 to the base body 14 is completed. The flange portion 16 of the base body 14 and the upper surface 20b of the key body 19 are not limited to be substantially flush with each other, and a part of the base body 14 or a part of the key body 19 is projected. May be.

(Unlocking operation of the key body from the base body)
FIG. 9: is a figure explaining the operation|movement which removes the key body fitted by the base body in the packaging fastener which concerns on embodiment. An operation of removing the key body 19 from the base body 14 (releasing the fitting) in the packaging fastener 1 according to the present embodiment will be described with reference to FIG. 9.

FIG. 9A shows a state in which two corrugated boards 40 and 41 are brought into contact with each other so that the through holes 40a and 41a formed therein overlap with each other. The collar portion 16 of the base body 14 is inserted into the through holes 40a and 41a, and the key body 19 is fitted to the base body 14 as shown in FIG. FIG. 9B shows a state in which 1 is mounted on the cardboards 40 and 41. In this state, the collar portion 16 and the hook member 18 sandwich the cardboards 40 and 41, so that the cardboards 40 and 41 are joined.

In order to remove the packaging fastener 1 from the corrugated cardboard 40, 41 from the state shown in FIG. 9B, the user first inserts the finger 50 into the opening 27 of the key body 19 as shown in FIG. 9C. Is guided by the inclined plate 28 and is inserted into the key body 19. At this time, since the rib 33 having the arcuate end portion 33a is provided inside the key body 19 as described above, the user can keep the finger 50 fitted to the end portion 33a. It can be hooked. Further, in the opening 27, the edge on the side opposite to the edge on which the inclined plate 28 is formed is an arc-shaped end 19a that is convex in the direction away from the connecting piece 22, so that the key body 19 is The finger 50 inserted through the opening 27 fits the end portion 19a, and the load on the fingertip is reduced.

Next, the user pulls up the finger 50 hooked on the key body 19 by applying a predetermined force in a direction in which the key body 19 moves away from the base body 14. Then, the fitting protrusions 24 a to 24 d that are engaged with the corners of the hook member 18 receive stress from the hook member 18 in the direction toward the inside of the push-opening body 20. As a result, the convex portions 31a to 31d are elastically deformed (displaced) so that the fitting convex portions 24a to 24d are directed toward the inside of the push-opening body 20, and the fitting convex portions 24a to 24d are engaged with the hook member 18. (Blocked state) is released. When the engagement by the fitting protrusions 24a to 24d is released, as shown in FIG. 9(d), the key body 19 starts rotating around the connecting hinge portion 21 in the direction to be pulled out from the base body 14. Then, the push-opening body 20 starts moving in the direction opposite to the insertion direction with respect to the tubular portion 15. That is, as described above, since the plate-shaped convex portions 31a to 31d are formed by providing the slits 30 on both ends of the fitting convex portions 24a to 24d, the fitting convex portions 24a to 24d are formed. When receiving a stress from the hook member 18 toward the inside of the push-opening body 20, the convex shape portions 31a to 31d are easily elastically deformed. As a result, the user can easily release the engagement of the fitting projections 24a to 24d with the hook member 18, and thus the burden of taking out the key body 19 from the base body 14 can be reduced.

When the user further rotates the key body 19 around the connecting hinge portion 21, as shown in FIG. 9E, the push-opening body 20 of the key body 19 causes the push-opening body 20 of the base body 14 to move. Is completely removed from the. Further, when the stress from the fitting convex portions 24a to 24d due to the elastic deformation of the convex shaped portions 31a to 31d is released, the two hook members 18 move the hinge portion 17 to which one end of the hook member 18 is connected. About the center, the other ends rotate in a direction toward each other and return to the original state. In this state, the elastically deformed convex portions 31a to 31d are returned to their original states.

When the position of the hook member 18 is returned to the original position as described above, the state in which the flange portion 16 and the hook member 18 are sandwiched between the corrugated cardboards 40 and 41 is released, so that the user can change the position as shown in FIG. 9(f). The base body 14 can be pulled out from the through holes 40a and 41a. Then, the user can completely remove the packaging fastener 1 from the cardboards 40 and 41, as shown in FIG. 9(g).

As described above, in the packaging fastener 1 according to the present embodiment, the protrusions 31a to 31d are formed by providing the slits 30 on both ends of the fitting protrusions 24a to 24d. Thus, when the fitting protrusions 24a to 24d receive a stress from the hook member 18 toward the inside of the push-open body 20 when the key body 19 is taken out from the base body 14, the protrusion-shaped portions 31a to 31d are easily formed. Is elastically deformed. Therefore, the user can easily release the engagement of the fitting projections 24a to 24d with the hook member 18, and the burden of taking out the key body 19 from the base body 14 can be reduced.

In addition, the packaging fastener 1 according to the present embodiment is provided in a plurality of corners formed inside the key body 19 by an inner wall surface on the side opposite to the connecting piece 22 and an inner wall surface of the upper surface 20b. Of ribs 33. The plurality of ribs 33 are formed with end portions 33a having an arc shape that is convex toward the above-mentioned corner side. Therefore, when the user takes out the key body 19 from the base body 14, the user can hook the finger inserted from the opening 27 of the key body 19 in a state where the finger fits the end 33a, so that the burden on the fingertip is reduced. Can be reduced.

Further, in the packaging fastener 1 according to the present embodiment, in the opening 27 of the key body 19, the edge opposite to the edge on which the inclined plate 28 is formed is a convex arc in the direction away from the connecting piece 22. The end portion 19a has a shape. Therefore, the user can fit the finger inserted into the key body 19 through the opening 27 to the end 19a, and the burden on the fingertip is reduced.

In the configuration examples shown in FIGS. 1 to 6, the sizes and shapes of the fitting convex portions 24a to 24d, and the widths and the lengths in the slit direction of the convex shaped portions 31a to 31d are shown in the same manner. However, the present invention is not limited to this. That is, when the elastically deformable convex portions 31a to 31d are formed, the positions, sizes and shapes of the fitting convex portions 24a to 24d, and the thickness, width and slit direction of the convex portions 31a to 31d. The length may be different within the range in which the key body 19 can be fitted into the base body 14.

(Modification 1)
FIG. 10: is sectional drawing of the key body of the fastener for packaging which concerns on the modification 1 of embodiment. With reference to FIG. 10, the configuration of the key body 19 of the packaging fastener 1 according to the first modification of the present embodiment will be described focusing on the configuration different from the key body 19 described above with reference to FIGS. 1 to 6.

In the above-described embodiment, the slits 30 are formed in the direction toward the upper surface 20b from both ends in the direction from the outer wall surface 20e to the outer wall surface 20f for all the fitting protrusions 24a to 24d. Indicated. In the packaging fastener 1 according to the present modified example, as shown in FIG. 10, with respect to the fitting convex portion 24a, the convex shaped portion 31a is formed by forming the slits 30 on both sides as in the above-described embodiment. Has been done. In the packaging fastener 1 according to this modification, for example, as shown in FIG. 10, on the other side, the fitting convex portion 24b is adjacent to the notch provided in the opening of the push-opening body 20. And the slit 30 is formed only on the side opposite to the cutout side of the fitting convex portion 24b. Thereby, the convex shaped portion 31b having the fitting convex portion 24b is formed.

The convex shape is not limited to the convex portion 31b, and may be formed in any of the convex portions 31a, 31c, and 31d. Further, not only the method of providing the slit 30 on one side, but also the method of forming the plate-shaped portion by scraping off the ends of the opening of the push-opening body 20 as described above instead of the slit 30 on both sides. Good.

As described above, in the present modification, for at least one of the convex shaped portions 31a to 31d, instead of forming slits on both sides, for example, by scraping off the end portion of the opening of the push-opening body 20, The convex portions 31a to 31d are formed. Accordingly, when the key body 19 is taken out from the base body 14, when the fitting protrusions 24a to 24d receive a stress from the hook member 18 toward the inside of the push-open body 20, the protrusion shape is easily elastically deformed. The parts 31a to 31d can be obtained. Therefore, the user can easily release the engagement of the fitting projections 24a to 24d with the hook member 18, and the burden of taking out the key body 19 from the base body 14 can be reduced.

In addition, it is not necessarily limited to forming at least one of the convex portions 31a to 31d by a method of cutting the end portion of the opening of the push-opening body 20. For example, at least one of the convex portions 31a to 31d may be formed by extending the convex portion from the end portion in the direction opposite to the upper surface 20b.

(Modification 2)
FIG. 11: is a perspective view of the key body of the packaging fastener which concerns on the modified example 2 of embodiment. With reference to FIG. 11, the configuration of the key body 19 of the packaging fastener 1 according to the second modification of the present embodiment will be described focusing on the configuration different from the key body 19 described above with reference to FIGS. 1 to 6.

In FIGS. 1 to 6 of the above-described embodiment, a configuration is shown in which the slits 30 are formed in the direction toward the upper surface 20b from both ends of each of the fitting protrusions 24a to 24d. In this modification, as shown in FIG. 11, for example, of the fitting protrusions 24a to 24d, the fitting protrusions 24a and 24c formed at positions closer to the connecting piece 22 (the connecting hinge portion 21) are not shown. The slit 30 is not formed. That is, the convex shaped portions 31a and 31c corresponding to the fitting convex portions 24a and 24c shown in FIGS. 1 to 6 are not formed. In this case, only the fitting protrusions 24b and 24d among the fitting protrusions 24a to 24d correspond to the "movement preventing portion" of the present invention.

As described above, in the present modification, the convex shaped portions 31b and 31d having the fitting convex portions 24b and 24d, respectively, are elastically deformed as compared with the vicinity of the fitting convex portions 24a and 24c in which the slit 30 is not formed. Easier to do. That is, the engagement with the hook member 18 by the fitting protrusions 24b, 24d located far from the coupling piece 22 (the coupling hinge portion 21) is easier to release than the engagement by the fitting protrusions 24a, 24c. .. Therefore, even if the fitting protrusions 24b and 24d located at a position far from the connecting piece 22 that is easily removed (easily disengaged) first comes off when unintended by the user, the fitting projections 24b and 24d are located close to the connecting piece 22. Due to the strong engagement state of the certain fitting projections 24a and 24c, the fitting state of the key body 19 to the base body 14 can be maintained.

(Modification 3)
FIG. 12: is a figure explaining the structure of the fitting convex part of the key body of the packaging fastener which concerns on the modified example 3 of embodiment. With reference to FIG. 12, the configuration of the key body 19 of the packaging fastener 1 according to the modified example 3 of the present embodiment will be described focusing on the configuration different from the key body 19 described above with reference to FIGS. 1 to 6.

As shown in FIGS. 12(a) and 12(b), fitting protrusions 24a, 24c formed at positions closer to the connecting piece 22 (connecting hinge portion 21) among the fitting protrusions 24a-24d. The height from the outer wall surfaces 20c and 20d of the push-opening body 20 on which the fitting protrusions 24a and 24c are formed is defined as c1. Further, among the fitting protrusions 24a to 24d, the fitting protrusions 24b and 24d of the fitting protrusions 24b and 24d formed at positions far from the connecting piece 22 (the connecting hinge portion 21) are formed. The height from the outer wall surfaces 20c and 20d of the push-open body 20 is c2. In the key body 19 of the packaging fastener 1 according to this modification, the fitting protrusions 24a to 24d are formed so that c1>c2. Specifically, the height c1 of the fitting protrusions 24a and 24c formed at a position close to the connecting piece 22 (the connecting hinge portion 21) is set to 1.7 [mm], for example, and is formed at a distant position. The height c2 of the fitting protrusions 24b and 24d is, for example, 1.5 [mm].

As a result, compared with the engagement of the fitting projections 24a and 24c formed at a position closer to the connection piece 22 (the connection hinge portion 21) with the hook member 18, the fitting projection 24b formed at a position farther from the engagement. , 24d are easier to release due to the lower height. Therefore, even if the fitting protrusions 24b and 24d located at a position far from the connecting piece 22 that is easily removed (easily disengaged) first comes off when unintended by the user, the fitting projections 24b and 24d are located close to the connecting piece 22. Due to the strong engagement state of the certain fitting projections 24a and 24c, the fitting state of the key body 19 to the base body 14 can be maintained.

(Modification 4)
FIG. 13: is a figure explaining the structure of the fitting convex part of the key body of the packaging fastener which concerns on the modified example 4 of embodiment. With reference to FIG. 13, the configuration of the key body 19 of the packaging fastener 1 according to the modified example 4 of the present embodiment will be described focusing on the configuration different from the key body 19 described above with reference to FIGS. 1 to 6.

As shown in FIGS. 13(a) and 13(b), fitting protrusions 24a, 24c formed at positions closer to the connecting piece 22 (connecting hinge portion 21) among the fitting protrusions 24a-24d. (Width in the direction away from the connecting hinge portion 21) is defined as d1. Further, among the fitting protrusions 24a to 24d, the width of the fitting protrusions 24b and 24d formed at a position far from the connecting piece 22 (the connecting hinge portion 21) (width in the direction away from the connecting hinge portion 21). And d2 respectively. In the key body 19 of the packaging fastener 1 according to this modification, the fitting protrusions 24a to 24d are formed so that d1>d2. Specifically, the width d1 of the fitting protrusions 24a and 24c formed at a position close to the connecting piece 22 (the connecting hinge portion 21) is set to, for example, 3.0 [mm], and the fitting formed at a distant position. The width d2 of the combined convex portions 24b and 24d is, for example, 2.8 [mm].

As a result, compared with the engagement of the fitting projections 24a and 24c formed at a position closer to the connection piece 22 (the connection hinge portion 21) with the hook member 18, the fitting projection 24b formed at a position farther from the engagement. , 24d are easier to release due to their narrower width. Therefore, even if the fitting protrusions 24b and 24d located at a position far from the connecting piece 22 that is easily removed (easily disengaged) first comes off when unintended by the user, the fitting projections 24b and 24d are located close to the connecting piece 22. Due to the strong engagement state of the certain fitting projections 24a and 24c, the fitting state of the key body 19 to the base body 14 can be maintained.

Note that in the example shown in FIG. 13, the width of the fitting protrusions 24a and 24c formed at a position closer to the connecting piece 22 (the connecting hinge portion 21) is set to the width of the fitting protrusions 24b and 24d formed at a far position. However, the width is not limited to this. For example, the width of the fitting convex portion 24d formed at a position far from the connecting piece 22 (the connecting hinge portion 21) is set to the fitting convex portion formed at a position facing the fitting convex portion 24d of the push-opening body 20. The size may be different from the width of 24b. As a result, of the plurality of fitting protrusions (for example, the fitting protrusions 24b and 24d) located far from the connecting piece 22 (the connecting hinge portion 21), one of the fitting protrusions is engaged with the hook member 18. Since the engagement is released first, the key body 19 can be easily removed from the base body 14.

(Modification 5)
FIG. 14: is a figure corresponding to the BB sectional drawing of FIG. 7 about the fastener for packaging which concerns on the modification 5 of embodiment. With reference to FIG. 14, the configuration of the key body 19 of the packaging fastener 1 according to the modified example 5 of the present embodiment will be described focusing on the configuration different from the key body 19 described above with reference to FIGS. 1 to 6.

As shown in FIGS. 14A and 14B, of the fitting protrusions 24a to 24d, the fitting protrusion 24d formed at a position far from the connecting piece 22 (the connecting hinge portion 21), The height from the outer wall surface 20d (the surface of the convex shaped portion 31d) of the push-opening body 20 in which the fitting convex portion 24d is formed is b1. In addition, among the fitting protrusions 24a to 24d, the fitting protrusion formed at a position far from the connecting piece 22 (the connecting hinge portion 21) and facing the fitting protrusion 24d on the push-opening body 20. The height of the portion 24b from the outer wall surface 20c (the surface of the convex shaped portion 31b) of the push-opening body 20 on which the fitting convex portion 24b is formed is b2. In the key body 19 of the packaging fastener 1 according to this modification, the fitting protrusions 24b and 24d are formed so that b1>b2.

As a result, of the plurality of fitting protrusions (for example, the fitting protrusions 24b and 24d) located far from the connecting piece 22 (the connecting hinge portion 21), one of the fitting protrusions is engaged with the hook member 18. Since the engagement is released first, the key body 19 can be easily removed from the base body 14. In addition, even if the fitting protrusions 24b and 24d located at a position far from the connecting piece 22 that is easily removed (easily released from the engagement) are removed when the user does not intend, the fitting protruding portions 24b and 24d are located close to the connecting piece 22. The fitting state of the key body 19 with respect to the base body 14 can be maintained by the engagement by the certain fitting convex portions 24a and 24c. As described above, in the modified examples 2 to 5, the releasing force for releasing the blocking of the fitting protrusions 24a to 24d, which are the plurality of movement blocking parts, is mainly different.

In the above description, the height b1 of the fitting convex portion 24d is set to be larger than the height b2 of the fitting convex portion 24b, but this magnitude relationship may be reversed. Further, as shown in FIG. 14, the height b1 of the fitting convex portion 24d is made larger than the height b2 of the fitting convex portion 24b. As a result, the height of the fitting convex portion 24d is increased. , 24b, 24c, but not limited to this. That is, the height of the fitting protrusion 24b may be smaller than the height of each of the fitting protrusions 24a, 24c, 24d.

(Modification 6)
FIG. 15 is a side view of the key body of the packaging fastener according to the modified example 6 of the embodiment. With reference to FIG. 15, the configuration of the key body 19 of the packaging fastener 1 according to the modified example 6 of the present embodiment will be described focusing on the configuration different from the key body 19 described above with reference to FIGS. 1 to 6.

As shown in FIGS. 15(a) and 15(b), among the fitting protrusions 24a to 24d, the fitting protrusion 24c formed at a position closer to the connecting piece 22 (the connecting hinge portion 21), The distance from the end of the opening of the push-open body 20 (the end of the convex portion 31c) toward the upper surface 20b to the end is a1. In addition, of the fitting protrusions 24a to 24d, the fitting protrusion 24d formed at a position distant from the connecting piece 22 (the connecting hinge portion 21) has an end (convex portion) of the opening of the push-open body 20. The distance between the center in the direction from the end portion 31d) toward the upper surface 20b and the end portion is a2. In the packaging fastener 1 according to this modification, the fitting protrusions 24c and 24d are formed so that a1<a2. The same applies to the relationship between the fitting protrusion 24a and the fitting protrusion 24b.

In addition, of the fitting protrusions 24 a to 24 d, an end of the fitting protrusion 24 c, which is formed at a position closer to the connecting piece 22 (the connecting hinge portion 21 ), on the upper surface 20 b side and the fitting protrusion of the collar 25. The distance from the end face (end) on the side of the portion 24c is e1. In addition, among the fitting protrusions 24 a to 24 d, an end of the fitting protrusion 24 d formed on a position far from the connecting piece 22 (the connecting hinge portion 21) on the upper surface 20 b side and the fitting protrusion of the collar 25. The distance from the end face (end) on the side of the portion 24d is e2. In the packaging fastener 1 according to this modification, the fitting protrusions 24c and 24d are formed so that e1>e2. The same applies to the relationship between the fitting protrusion 24a and the fitting protrusion 24b.

Here, consider the case of a1=a2. When the key body 19 is bent so that the upper surface 20b becomes a curved surface toward the outside due to aging or the like, even if the fitting protrusions 24b and 24d are engaged with the hook member 18, the fitting protrusion 24a, There is a possibility that a state in which 24c is not engaged occurs. In this case, since the fitting protrusions 24a to 24d are formed so that a1<a2 as in the present modification, the fitting protrusions 24a and 24c are engaged when the fitting protrusions 24b and 24d are engaged. Can be surely engaged. Further, the fitting projections 24a to 24d are formed so that e1>e2. Therefore, when the difference between the distance (assumed to be larger than e1 and e2) of the portion of the base body 14 that engages with the flange portion 16 and the fitting protrusions 24a to 24d and e1 and e2 is taken, The difference between the distance and the distance e1 (on the fitting convex portion 24c side) is smaller than the difference between the distance and the distance e2 (on the fitting convex portion 24d side). Therefore, the holding force on the fitting protrusions 24b and 24d side can be made stronger than that on the fitting protrusions 24a and 24c side. That is, in this modified example, the holding forces of the fitting protrusions 24a to 24d, which are the plurality of movement preventing portions, are mainly different.

DESCRIPTION OF SYMBOLS 1 Packaging fastener 14 Base body 15 Cylindrical part 16 Collar part 17 Hinge part 18 Hook member 19 Key body 19a End part 20 Push opening body 20a Rear end part 20b Upper surface 20c to 20f Outer wall surface 21 Coupling hinge part 22 Coupling piece 24a to 24d Fitting convex portion 25 Collar portion 26 Recessed portion 27 Opening portion 28 Inclined plate 29 Fall prevention rib 30 Slits 31a to 31d Convex shaped portion 33 Rib 33a End portion 40 Corrugated board 40a Through hole 41 Corrugated board 41a Through hole 50 Finger

JP-A-63-067246

Claims (11)

A base body having a tubular portion and a first protrusion provided on the outer peripheral surface of the tubular portion;
A first position rotatably connected to the base body via a first hinge portion, where the unconnected portions are close to each other, and the unconnected portions are distant from each other. And at least two hook portions that rotate to a second position located outside the tubular portion when viewed from the opening direction of the opening portion of the tubular portion,
A key part that has an insertion part that can be inserted into the tubular part, and that is pivotally connected to the base body via a second hinge part;
The insertion portion is provided on a convex portion that is displaceable in a direction orthogonal to the insertion direction for inserting the insertion portion into the tubular portion, and the insertion portion moves in a direction opposite to the insertion direction with respect to the tubular portion. At least one movement blocking portion that is in a blocking state that blocks
Equipped with
When the key portion is rotated around the second hinge portion and the insertion portion is inserted into the tubular portion, the insertion portion abuts on the hook portion and the hook portion moves from the first position. Moved to the second position and brought into the blocked state by the movement blocking portion,
By applying a predetermined force from the blocking state to the insertion portion in a direction opposite to the insertion direction, the movement blocking portion is displaced in a direction orthogonal to the insertion direction to release the blocking state, and the insertion portion is inserted. A packaging fastener in which is moved in a direction opposite to the insertion direction with respect to the tubular portion. The movement blocking unit is a plurality,
The packaging fastener according to claim 1, wherein at least two of the movement preventing portions have different shapes or at least two of the convex portions have different shapes. The at least one convex portion is
The movement blocking portion is provided as a protrusion protruding outward from the outer wall of the insertion portion,
The packaging fastener according to claim 1 or 2, wherein a groove is formed on both sides or one side of the convex portion in the opening of the insertion portion to form a plate-shaped portion. At least one of the convex-shaped portions is a plate-shaped portion extending from the end of the opening of the insertion portion,
The packaging stopper according to any one of claims 1 to 3, wherein the movement blocking portion is a convex portion formed on a surface of the plate-shaped portion and discharged in a direction outward from an outer wall of the insertion portion. .. The said convex part engages with this hook part in the state which completed the operation|movement which rotates the said hook part centering|focusing on the said 1st hinge part, contacting the said hook part with the said insertion part. The packaging fastener described in. The movement blocking unit is a plurality,
The 2nd convex-shaped part located in the position farther from the said 2nd hinge part than the 1st convex-shaped part among said some convex-shaped parts is elastically deformable, The any one of Claims 1-5. Fasteners for packaging. The key portion further has a second protrusion formed on an outer peripheral surface of the insertion portion opposite to the convex portion,
The movement blocking unit is a plurality,
The distance from the end of the plate-shaped portion to the center of the convex portion in the first convex-shaped portion of the plurality of convex-shaped portions is located farther from the second hinge portion than the first convex-shaped portion. Smaller than the distance from the end of the plate-shaped portion to the center of the convex portion in a certain second convex-shaped portion,
The distance between the end of the second protruding portion on the side of the second protruding portion and the end of the second protruding portion on the side of the second protruding portion is the second protrusion of the first protruding portion. The packaging fastener according to any one of claims 3 to 5, which is smaller than the distance between the end on the side of the portion and the end of the second protrusion on the side of the first convex shape. The movement blocking unit is a plurality,
The height of the said convex part from the surface of the said plate-shaped part differs in the said several convex-shaped part most distant from the said 2nd hinge part among these convex-shaped parts, respectively. The fastener for packaging as described in 1 item|item. The movement blocking unit is a plurality,
The height of the convex portion from the surface of the plate-like portion in the first convex-shaped portion of the plurality of convex-shaped portions is at a position farther from the second hinge portion than the first convex-shaped portion. The packaging fastener according to any one of claims 3 to 5, which is larger than a height of the convex portion from a surface of the plate-shaped portion in the two convex portion. The movement blocking unit is a plurality,
A width of the convex portion in the first convex portion of the plurality of convex portions in a direction away from the second hinge portion is at a position farther from the second hinge portion than the first convex portion. The packaging fastener according to any one of claims 3 to 5, wherein a width of the convex portion in the two convex portions is larger than a width of the convex portion in a direction away from the second hinge portion. The key part is
An opening formed on a surface opposite to the side where the insertion portion is inserted into the tubular portion,
An inclined plate extending from the edge of the opening toward the inside of the insertion portion,
A plurality of arcuate end portions that are erected on the inner wall surface of the opposite surface on the edge side opposite to the edge on which the inclined plate is extended in the opening portion and project toward the inner wall surface. Ribs,
The packaging fastener according to any one of claims 1 to 10, which comprises:

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