JPH078417Y2 - Sealing jig for packaging - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing jig for packaging, for example, a sealing jig for fixing a lid of a cardboard packaging box to a main body so that the lid can be opened and closed.

[0002]

2. Description of the Related Art Conventionally, various constructions have been known as this type of sealing jig, but a typical one is, for example, Jitsuko Sho 49
-26567 and Japanese Utility Model Laid-Open No. 58-130113.
Explaining the one in the above publication, in the former, the outer cup is attached to the outer cardboard of the corrugated cardboard in the cardboard packaging box, the inner cup is attached to the inner cardboard, and the clip rotor fitted in the outer cup is rotated. By locking the stopper part provided on the rotor with the cam-shaped protrusion provided on the inner cup,
Inside these inner and outer cups, the outer cardboard, for example, the body and lid are fixed to close the packaging box.The outer and inner cups are inserted into the mounting holes formed in the cardboard and held from the opposite side. The ring is fitted in the stopper groove of the cup, and the corrugated board is sandwiched between the cup and the ear of the retaining ring to attach it to the corrugated board.The clip rotor has a lock insertion hole to insert a lock and insert this lock. It is configured to rotate through.

In the latter case, a male member, which is attached to the inner corrugated board and penetrates the inner corrugated board from the inside, is screwed into a male member having the outer corrugated board penetrated from the outside, and a flange provided on the female member and a pick of the male member are provided. The inner cardboard and the outer cardboard that have been stacked are sandwiched and fixed.

[0004]

Therefore, the former is not only troublesome due to the large number of parts and the large number of work steps for mounting on the corrugated board, but also a special jig for fitting the retaining ring into the retaining groove of the cup. There was an inconvenience to need. Also, the latter has a small number of parts and is easy to attach to the corrugated board, but the male and female members must be rotated several times to attach and detach the male member and the female member, which requires time and effort to open and close the packaging box. It was
Further, since the male member is not fixed to the corrugated board, once the packaging box is opened, the parts easily fall off, which is disadvantageous for repeated use.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is that the number of parts is small, both mounting and opening / closing operations on a corrugated board are easy, and it can be repeatedly used. To provide a simple sealing jig.

[0006]

In order to achieve the above-mentioned object, in the packaging sealing jig of the present invention, a flange having a cylindrical shape with a bottom and provided at the opening edge, and a bottom end peripheral edge to bottom surface are provided. Equipped with a locking piece that extends to the outer surface side and can be bent outward,
It consists of an inner cup and an outer cup that fit into a mounting hole opened in the corrugated board and clamp and fix the corrugated board with the above flange and locking piece, and the inner cup has a key insertion hole opened on the bottom surface part. The outer cup is rotatably and reciprocally inserted through the bottom surface of the outer cup, and the key projection is inserted into the key insertion hole at the tip protruding outward from the bottom surface, but is not insertable at any other angle. A key member provided with a section,
It has a spring for urging the key member in the backward direction.

[0007]

In the packaging sealing jig configured as described above, the outer cup and the inner cup are opened on the outer corrugated cardboard and the inner corrugated cardboard, respectively, in which the outer cup and the inner cup can be superposed on each other when mounted on the packaging box. The installation is completed simply by inserting it into the mounting hole and bending the locking piece to the outside. When sealing the packaging box, press the key member in correspondence with the stopper part and the key insertion hole and rotate it 90 degrees to seal it. be able to. Further, even if the packaging box is once opened, the sealing jig is fixed to the inner and outer corrugated cardboards, respectively, so that the parts can be used repeatedly without dropping off.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, a lid of a packaging box formed of a three-layer corrugated board is fixed to the main body, and a in the figure is a corrugated board A1 located outside the portion of the packaging box A where the main body and the lid are superposed on each other. An outer cup attached to the lid (in the example shown, it is called a lid in the following description), b is an inner cup attached to the corrugated cardboard A2 located inside (in the example shown, it is called the body in the following description because it is the body side) In the cup, the thickness of the corrugated board at the position where each metal plate is to be attached by an appropriate method such as press molding, that is, since the three-layer corrugated board is used in this embodiment, the depth substantially corresponding to the thickness of the three-layer corrugated board. Is formed in the shape of a bottomed cylindrical cup, and has a flange 2 provided at each of its openings with a claw piece 1 projecting horizontally outward and projecting toward the bottom side of the cup at its outer peripheral edge. .

Further, the outer and inner cups a and b each have a plurality of locking pieces bent from the bottom surface through notches 3 formed in a U shape from the peripheral edge of the bottom surface toward the center. Have four.

The outer cup a is fitted from the outside of the lid A1 into a mounting hole 5 having the same diameter as the outer diameter of the outer cup a formed in a portion of the lid A1 of the corrugated cardboard packaging box A which is superposed on the outer surface of the main body. , The outer peripheral edge of the flange 2 is engaged with the outer surface of the lid A1 and the locking piece 4 is bent outwardly so as to abut and lock with the inner surface side of the lid A1. Is clamped and fixed to the lid A1.

The inner cup b has a mounting hole 5 for the lid A1.
Correspondingly, it is inserted from the inside of the main body A2 into a mounting hole 6 having the same diameter as the outer diameter of the inner cup b opened in the main body A2, and is mounted and fixed to the main body A2 in the same manner as the outer cup a.

A key member 7 is mounted on the outer cup a with its stopper portion 7a protruding outward from the bottom surface portion, and the bottom portion of the inner cup b has substantially the same shape as the stopper portion 7a of the key member 7. The key insertion hole 8 is opened.

The key member 7 is formed in a T shape by providing a stopper portion 7a at the tip of the shaft rod 7b so as to be orthogonal to this.
The shaft rod 7b extends into the cup a through a circular hole-shaped insertion hole 9 formed at the center of the bottom surface of the outer cup a from the outside of the bottom surface of the cup a, and the shaft extending into the cup a. A disk 10 having a diameter substantially the same as the inner diameter of the cup a is fitted into the rod 7b through a through hole 11 formed in the center of the rod 7b so as to be inserted into the cup a.

A retaining ring 12 also serving as a knob is attached to the rear end portion of the shaft rod 7b of the key member 7 to prevent the disc 10 from falling off the shaft rod 7b. A spring 13 is mounted between it and the inner bottom surface. Therefore, the key member 7 is pulled toward the opening side of the outer cup a by the spring 13, and the stopper portion 7a is normally elastically pressed against the outer bottom surface of the cup a.

Thus, in such a sealing jig, the outer cup a and the inner cup b are opposed to each other, the stopper portion 7a of the key member 7 of the outer cup a is made to correspond to the key insertion hole 8 of the inner cup b, and is stopped. By pushing the key member 7 through the wheel 12 and inserting the stopper portion 7a into the key insertion hole 8 and rotating it by 90 ° to lock the stopper portion 7a to the inner bottom surface of the inner cup b, the outer cup a is attached. The lid A1 can be fixed to the main body A2 to which the inner cup b is attached to close the packaging box A.

5 to 6, the outer cup a and the inner cup b in the above embodiment are provided with convex portions 14 and concave portions 15 corresponding to each other on the outer surfaces of the bottom portions thereof, and these convex portions 14 and concave portions 15 are provided.
The engagement is to prevent the lateral displacement after sealing, and the convex portion 14 and the concave portion 15 are cups a and b, respectively.
Is formed by stamping out the bottom surface of.

Next, FIGS. 7 to 9 show another embodiment, in which the fixing force of the inner cup b to the main body A2 against the force from the outer surface side is strengthened and a plurality of types of corrugated board having different thicknesses are formed. It is possible to deal with.

In this embodiment, the inner cup b is the main body
It is formed so as to fit into the mounting hole 6 from the outside of A2 and has a shallow depth, for example, a depth corresponding to the thickness of one corrugated board.

The engaging piece 4 is provided with a notch 3 provided in the inner cup b for folding the same so as to extend as long as possible from the peripheral edge of the bottom surface portion in parallel with the long side of the key insertion hole 8. In the folded state, the distance from the flange 2 to the tip is at least equal to or larger than the thickness of the three-layer corrugated board, and the main body having the required thickness from the one-layer corrugated board to the three-layer corrugated board depending on the folding position. It can be locked on the inner surface of A2.

On the other hand, the outer cup a is formed in a cylindrical shape having a depth corresponding to the thickness of the three-layer corrugated board as in the above embodiment, but the notch 3 for folding up the locking piece 4 is formed.
Is formed in the middle of the side surface of the cup a, for example, from a portion whose distance from the flange 2 corresponds to the thickness of one corrugated board to the bottom portion, and a portion whose distance from the flange 2 corresponds to the thickness of one corrugated board. It can be bent outward even from the inside, and can be locked to the inner surface of the lid having a required thickness from one-layer cardboard to three-layer cardboard.

Thus, in this embodiment, the inner cup b
The flange 2 is locked from the outside of the main body A2 to the peripheral edge of the mounting hole 6, and the locking piece 4 is bent from the bottom surface.
Thus, the fixing force of the inner cup b against the force from the outer surface side is also strengthened as compared with the previous embodiment in which the body A2 is locked to the outer surface side. Therefore, in the case of this embodiment, in the state where the stopper portion 7a is not completely aligned with the key insertion hole 8,
Even if the key member 7 is pushed in, the key member 7
The inner cup b will not fall out of the mounting hole 6 due to the pressing force of.

In addition, this embodiment can be applied to a plurality of types of corrugated board having different thickness, and at least the lid A1 is a packaging box A made of corrugated board of two layers or less.
8 and 9, the bottom portion of the outer cup a projects toward the inner surface of the lid A1, and the projecting portion fits into the inner cup b. Therefore, even if no special means is provided, the lateral displacement after sealing is prevented.

[0023]

[Effect] Since the present invention is configured as described above, the following effects can be obtained. (1). By fitting the outer cup and the inner cup into the mounting holes formed in the outer corrugated cardboard and the inner corrugated cardboard that overlap with each other of the packaging box and bending the locking piece outward, a flange provided at each opening edge of the locking piece and the cup Since the cardboard can be sandwiched and fixed to the cardboard with, it is extremely easy to mount it on the packaging box. (2). When the key member attached to the outer cup is pushed and rotated, the stopper portion of the key member is locked to the bottom surface of the inner cup through the key insertion hole to join the inner and outer cups, while By rotating the member and aligning the stopper portion and the key insertion hole, the connection between the two is released, so that the packaging box can be opened and closed easily with one touch. (3). Since the parts are fixed to the outer and inner corrugated boards, the parts do not fall off even if the packaging box is opened once, and can be used repeatedly. (4). Since the number of components is small, it is easy to manufacture and assemble, and the cost is low.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a packaging sealing jig showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of a usage state.

FIG. 3 is a sectional view showing an opened state.

FIG. 4 is a cross-sectional view showing a closed state.

FIG. 5 is an exploded perspective view of a packaging sealing jig showing a modification of the above embodiment.

FIG. 6 is a cross-sectional view showing a closed state of the packaging sealing jig.

FIG. 7 is an exploded perspective view of a packaging sealing jig showing another embodiment.

FIG. 8 is a perspective view showing a usage state.

FIG. 9 is a sectional view showing an opened state.

FIG. 10 is a cross-sectional view showing a closed state.

[Explanation of symbols]

A: Packaging box A1: Outer cardboard (packing box lid) A2: Inner cardboard (packing box body) a: Outer cup b: Inner cup 2: Flange 3: Notch 4: Locking piece 5: Mounting hole 6: Mounting Hole 7: Key member 7a: Stopper part 8: Key insertion hole 13: Spring 14: Convex part 15: Recessed part

Claims (5)

[Scope of utility model registration request] 1. A corrugated board provided with flanges each formed in a cylindrical shape with a bottom and provided at an opening edge, and a locking piece extending outward from the peripheral edge of the bottom surface portion to the outer surface side of the bottom surface portion and bendable outward. Consisting of an inner cup and an outer cup that fit into the mounting hole and clamp and fix the corrugated cardboard with the flange and the locking piece, and the inner cup has a key insertion hole opened in its bottom surface,
The outer cup is rotatably and reciprocally inserted through the bottom surface of the cup to project outward from the bottom surface.A stopper portion that can be inserted into the key insertion hole at a predetermined angle but cannot be inserted at any other angle is provided. A packaging sealing jig comprising a key member provided and a spring for urging the key member in the backward direction. 2. An outer cup is fitted from the outside into a mounting hole of the outer corrugated board in a portion where the corrugated board of the corrugated board box is superposed, and the flange is locked to the outer opening side edge of the mounting hole, and the inner cup is inside. The packaging sealing jig according to claim 1 or 2, wherein the flange is fitted into the mounting hole of the corrugated board from the inside and the flange thereof is locked to the opening edge of the mounting hole on the inner surface side. 3. The packaging sealing jig according to claim 2, further comprising a concave portion and a convex portion that engage with each other on the bottom surfaces of the inner cup and the outer cup. 4. The outer cup is fitted from the outside into a mounting hole of the outer corrugated board in a portion of the corrugated cardboard packaging box where the corrugated board is superposed, and its flange is locked to the outer side opening edge of the mounting hole, and the inner cup is inside. 2. The packaging sealing jig according to claim 1, wherein the packaging sealing jig is fitted into a cardboard mounting hole from the outside and the flange is locked to the outer surface side opening edge of the mounting hole. 5. The packaging sealing jig according to claim 2, wherein the inner cardboard is a main body of the packaging box and the outer cardboard is a lid.