JPH0426352Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention mainly relates to a cap seal for sealing the cap (including the inner stopper) of bottles such as one-sho bottles.

[Prior Art] A cap seal is a device that covers the mouth of a bottle and prevents a stopper inserted into the mouth of the bottle from coming off, thereby preventing the contents from leaking.

An example of a conventional cap seal is from the 1980s.
This is shown in FIG. 1 of Publication No. 68651 (Utility Application No. 152167/1983). The conventional cap seal shown in Fig. 1 is made by punching out a number of disks from a single aluminum plate and drawing the obtained disks into a shape having a cylindrical body and a top surface. Molded. After drawing, a cut A is formed in the lower part of the cylindrical body to form an opening end piece. To open the cap seal, the cylindrical body is cut by pulling the opening end piece to remove the cap seal from the mouth of the bottle.

[Problems to be solved by the invention] In the above-mentioned conventional cap seal, since a disk is punched out from a single plate, there is a gap between the disks of 25 to 30 of the total area of the plate. % of unused parts, resulting in a large amount of wasted material.

Further, the cap seal formed by drawing as described above has a top portion formed therein. This top part is not necessarily all needed to seal the cap part of the bottle.
Furthermore, because of the presence of this top surface portion, the printed portion printed on the top of the bottle stopper is covered up, making it necessary to apply the same printing on the top surface portion of the cap seal as on the stopper. Therefore, conventional cap seals made by such drawing process have a top surface that is not necessarily required due to the structure, and as a result,
There was a problem that the effective utilization of the material was further reduced.

Therefore, an object of the present invention is to provide a cap seal with excellent material yield.

[Means for Solving the Problems] The present invention relates to a cap seal that seals a stopper inserted into a bottle mouth, and has the following features.

First, a first joining protrusion is provided in an upper region of one side edge of a rectangular thin metal plate, and an opening protrusion is formed in a lower region of this one side edge apart from the first joining protrusion. . Further, a second bonding protrusion is formed on the other side edge of the thin metal plate at a position corresponding to the first bonding protrusion. After bending the first joining protrusion and the unsealing protrusion inward of the cap seal and bending the second joining protrusion outward, the thin metal plate is formed into a cylindrical shape, and the first joining protrusion is bent inward. A joining portion is formed by engaging the piece and the second joining protrusion.
The joint portion and the opening protrusion formed by bending inward are formed to be aligned in the vertical direction.

[Function] The cap seal according to the present invention is constructed by molding a rectangular thin metal plate into a cylindrical shape. When such a rectangular thin metal plate is cut from a metal plate serving as a raw material, waste areas between adjacent cap seal materials can be eliminated as much as possible, so that the material yield is improved. In particular, in the case of the cap seal of the present invention, since the protruding pieces for joining and the protruding pieces for opening are formed aligned with the side edges of the thin metal plate, the shape of the thin metal plate on which these protruding pieces are formed is It is also possible to make the material into a rectangular shape, which improves the above-mentioned material yield.

In addition, since the joining protrusion and the unsealing protrusion are formed in alignment, the unsealing protrusion can be bent at the same time as the joining protrusion is bent, which simplifies the manufacturing process. You can also do it.

[Example] In FIG. 1 showing a cap seal according to this example, a cylindrical part 1 formed into a cylindrical shape by fixing both ends of a flat plate has a seam 2 as a part fixed at both ends. There is. As shown in FIG. 2, an inward flange 6 is integrally formed at the upper end of the cylindrical portion 1 by drawing. Seat 2 in Figure 1
A cut 3 is formed below the cut 3, and cutting portions 4 are formed at intervals in the direction in which the upper end of the cut 3 extends. The cut portion 4 has a lower end extending slightly in the circumferential direction of the seal, and extends obliquely upward from the lower end in a generally straight line.

The portion of the gap 2 located at the flange 6 does not have an overlapping structure.
Furthermore, the part corresponding to the recess of the bottle mouth (described later) is also
It does not have a superimposed structure.

The notch 3 extends upward in the center line direction from the lower end of the cylindrical portion 1, and has an upper end curved toward the cutting portion 4 side. The lower edge of the notch 3 is rounded. Further, the end piece portion 5 is formed by folding and overlapping the edges of this cut.

When manufacturing a cap seal having the above structure, the process is as follows. First, a roughly rectangular flat plate is punched out from a large flat plate. At that time, the flat plate is shaped as shown in FIG. In this case, the parts for forming the gap 2, notch 3, cut section 4, and end piece 5 are made in advance before making the cylinder shape, so that there is no need to process them after forming the cylinder shape. is taken into consideration. That is, since these processes are performed at once in the flat plate punching process, the manufacturing process can be simplified. In order to facilitate understanding, corresponding parts after molding are indicated by the same reference numerals in FIG. Since the flat plate formed by punching is generally rectangular, almost no blank is produced compared to the conventional circular punching. Therefore, waste of materials and printing costs in this process can be almost eliminated.

The flat plate shown in FIG. 3 is formed into a cylindrical shape as shown in FIG. 1 by winding both ends toward the front side of the page.
In the step of forming the seam 2, the end piece 5 is formed at the same time.
Since it is possible to form a folded overlapping portion, the number of steps for forming the end piece portion 5 is not increased by one step. Next, the flange 6 is formed from a simple cylindrical shape by narrowing its upper end. FIGS. 1 and 2 show this state.

Next, how to use the cap seal shown in FIGS. 1 and 2 will be explained. In Figure 4, bottle 10
A cap 12 is fitted into the mouth 11 of the cap. In this state, cover with the cap seal shown in FIGS. 1 and 2 from above. At this time, the flange 6 covers the upper peripheral edge of the cap 12. Next, bottle 10
The cylindrical part 1 is inserted into the circumferential groove 13 formed on the outer peripheral edge of the upper end.
Press down to prevent the cap seal from coming off. Since the portion corresponding to the groove 13 is not formed with the overlapping portion of the flap 2 as shown in FIG. Closely attached to 13.

At this time, since the end piece 5 is formed by folding and overlapping as shown in FIG.
It will be in a state where it floats slightly outward from 0 (arrow A). Therefore, when pulling out the end piece 5, the tip of the finger can be easily hooked onto the end piece 5, and since the tip of the end piece 5 is not sharp, the operation is safe. When the end piece 5 is pulled out and pulled even harder by that part, the cylindrical part 1 forms the notch 3.
It splits in the circumferential direction from the tip and reaches the cut section 4. As a result, the cap seal is peeled off and the cap 12 can be freely removed from the mouth 11 of the bottle 10.

In addition, when making the above cap seal,
Since the cylindrical portion 1 is not formed by drawing, even if complicated printing is performed on the cylindrical portion 1 in advance, the printed surface will not be distorted. Further, since the top surface of the cap 12 is exposed only by forming the flange 6 at the upper end of the cap seal 1,
Printing on the top surface of the cap 12 can be used effectively. Moreover, since the top part of the cap seal is not required, it also contributes to a reduction in material costs.

[Another Embodiment] (a) Although it is preferable that the notch 3 and the end piece 5 be located at positions corresponding to the seams 2, they do not have to correspond in carrying out the present invention.

(b) It is preferable to form a notch in advance in the part of the gap 2 corresponding to the groove 13 so that it can be easily aligned with the groove 13. However, in carrying out the present invention, The gaps 2 may be formed continuously.

[Effects of the invention] According to the cap seal according to the invention, both ends of a rectangular thin metal plate are joined to form a cylindrical part, and an opening end piece is provided in the same vertical direction as the joined part. Accordingly, it is possible to realize a cap seal that improves the material yield and is safe and easy to open due to the inwardly formed opening end piece.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a developed view thereof, Fig. 4 is a partially longitudinal front view showing the state of use, and Fig. 5 is a front view of the embodiment of the present invention. It is a - cross-sectional partial view of the figure. 1 is a cylindrical portion, 3 is a notch, and 5 is an end piece.

Claims (1)

[Scope of Claim for Utility Model Registration] A cap seal for sealing a stopper inserted into a bottle mouth, which has a rectangular thin metal plate with a first seal in the upper area of one side edge.
A joining protrusion is provided, and an unsealing protrusion is formed in a lower region of the one side edge apart from the first joining protrusion, and further the first joining protrusion is provided on the other side edge of the thin metal plate. forming a second joining protrusion at a position corresponding to the cap seal, bending the first joining protruding piece and the opening protruding piece inwardly of the cap seal, and bending the second joining protruding piece outward. After that, the thin metal plate is formed into a cylindrical shape, and the first joint protrusion and the second joint protrusion are engaged with each other to form a joint, and then bent inward from the joint. A cap seal characterized in that the molded opening protrusions are aligned in the vertical direction.