JPS6233698Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a removable sealing device for sealing the flap of a packaging box or the like.

Structure of conventional examples and their problems Various sealing tools are used to seal conventional packaging cardboard boxes. That is, there are those that are pasted with tape, those that use staples, those that are sealed with cultural tacks, and even those that are sealed with adhesive. However, both have poor resealability after being opened and require new sealing material. Bunka tacks are easy to reseal because strings are wrapped around the tacks, but the tacks must be attached during the production of cardboard boxes, which poses problems in terms of productivity. There are problems such as rivets coming off and strings breaking.

For these reasons, the inventors of the present invention
The sealing tool shown in the 4583 publication has been developed. As shown in Fig. 1, this tool has two rotating pieces 15, 15' which are provided on a base plate 14 so as to be able to stand upside down, and the rotating pieces 15, 15' are provided with claws 16, 16'. This is attached to a packaging box 17 as shown in Fig. 2.
When the rotating pieces 15, 15' are brought into contact with the joints of the flaps 18, 18' so as to cross each other, and the rotating pieces 15, 15' are turned down, the claws 16, 16' bite into the flaps 18, 18', thereby sealing the flaps 18, 18'. Figure 3 shows the sealed state.

The sealing tool having the above structure is capable of moving the claws 16, 16' to the flap 1 by pulling up the rotating pieces 15, 15'.
8, 18', therefore, it can be removed from the packaging box 17 and the packaging box 17 can be opened, and the sealing tool can be reused, which is useful, but it is easy to lose when it is removed from the flaps 18, 18'. ,
In addition, the structure in which the rotating pieces 15, 15' are rotated by hinges, the claws 16, 16' are curved, and the board 14 is provided with holes for the claws 16, 16' to pass through, etc. The problem was that the structure was complicated, the mold was complicated, and the manufacturing cost was high.

Purpose of the invention The present invention takes into account the above-mentioned conventional problems, and aims to provide a sealing tool that can be easily sealed, is difficult to lose, has a simple structure, and is easy to manufacture.

The sealing device of the present invention is made of a synthetic resin having elasticity, and is composed of first and second rectangular sealing members, the first sealing member having a metal claw at one end and a tab at the other end, a recess on the underside into which the second sealing member fits, a hole and a holding piece, the second sealing member having a protrusion that fits into the hole and a locking recess corresponding to the holding piece, and a metal claw protruding from the end opposite the metal claw of the first sealing member, and when sealing, the metal claws of the first and second sealing members are crimped and joined to two corresponding flaps of the packaging box, respectively, and the first and second sealing members are fastened to each other by crimping.
The sealing members are joined together, and the first and second sealing members are opened.
This is done by pulling off and separating the sealing member.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 4 to 8.

In the figure, reference numerals 1 and 2 indicate first and second sealing members in the form of strips made of elastic synthetic resin, ie, polypropylene. The first and second sealing members 1 and 2 have metal claws 3 and 4 protruding from opposite ends, respectively. Said metal claws 3, 4
The base is embedded in the sealing members 1, 2 when the sealing members 1, 2 are molded. The first sealing member 1 has a recess 5 on the lower surface into which the second sealing member 2 is fitted.
It also has a hole 6 for positioning,
Further, the end portion opposite to the metal claw 3 is integrally provided with a knob piece 7 and a holding piece 8 projecting inward from both sides. The second sealing member 2 has a projection 9 that fits into the hole 6 of the first sealing member 1, and locking recesses 10 on both sides corresponding to the holding pieces 8.

As shown in FIG.
The sealing member 2 is fitted, the protrusion 9 is fitted into the hole 6, and the holding piece 8 holds the locking recess 10. Therefore, the first and second sealing members 1 and 2 are joined together.

When sealing, the integrated first and second sealing members 1 and 2 are arranged so as to cross the abutting portions of the flaps 12 and 13 of the cardboard packaging box 11, as shown in FIG. Although not shown, the metal claws 3 and 4 are engaged with the flaps 12 and 13 using a tool to connect them. FIG. 7 shows a cross section thereof, and the tips of the metal claws 3 and 4 are bent inward along the lower surfaces of the flaps 12 and 13.

Since the first and second sealing members 1 and 2 are coupled to the flaps 12 and 13 in this way, and the first and second sealing members 1 and 2 are coupled together, the flaps 12 and 13 will be sealed. The first and second sealing members 1 and 2 are tightly connected, so that they will not come off even if there is some impact, and even if longitudinal force is applied, the protrusion 9 and the hole 6 will not fit together. The first and second sealing members 1 and 2 will not be misaligned due to misalignment.

When opening the package next time, by pinching the tab 7 of the first sealing member 1 located above and pulling it strongly upward, the second sealing member 2 located below is removed from the holding piece 8, and the second sealing member 2 is removed from the holding piece 8, as shown in FIG. As shown in FIG. 2, the first and second sealing members 1, 2 can be separated and the flaps 12, 13 can be opened. In this case, the first and second sealing members 1 and 2 are secured to the flaps 12 and 2 by metal claws 3 and 4, respectively.
13, so it cannot be lost and can be used again for sealing.

Effects of the invention As explained above, the sealing device of the present invention is easy to seal and open, and the two sealing members that make up the sealing device have a simple structure in the form of strips with embedded metal claws, so they are easy to manufacture. Moreover, since the two sealing members remain attached to the flap even after the package is opened, there is no chance of them being lost, and it is convenient for reuse.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional sealing device, Fig. 2 is a perspective view of a packaging box sealed with the same sealing device, Fig. 3 is a sectional view of the sealing part of the packaging box, and Fig. 4 is a perspective view of a conventional sealing device. FIG. 5 is a perspective view of the sealing tool of the embodiment, and FIG.
Figure 6 is a perspective view of the packaging box sealed with the sealing tool, Figure 7 is a cross-sectional view of the sealed part of the packaging box, and Figure 8 is the packaging box opened. It is a perspective view of a state. 1, 2...first and second sealing members, 3, 4...
Metal claw, 5... recess, 6... hole, 7... knob piece, 8... holding piece, 9... protrusion, 10... locking recess, 11... packaging box, 12, 13... Flap.

Claims (1)

[Scope of utility model registration request] It consists of first and second sealing members made of elastic synthetic resin and having a rectangular shape, the first sealing member having a protruding metal claw at one end and a tab piece at the other end. and has a recess on the lower surface, and further has a hole and holding pieces projecting inward from both sides, and the second sealing member has a shape that fits into the recess of the first sealing member. A sealing tool having a protrusion that fits into the hole and a locking recess corresponding to the holding piece, and a metal claw protruding from an end opposite to the metal claw of the first sealing member.