JPS5813420B2 - Sweepstakes lid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a prize lid having a peelable gasket, and more particularly to a prize lid having a gasket that is improved to be easier to peel by forming a strip part on a part of the gasket. Regarding the lid body.

Various types of lids for crown prizes have been proposed [for example, US Pat. No. 1,711,469; 32,337
70;3257021;3361281:358169
0: and No. 3,633,781], however, in all conventional prize lids, the gasket can be lifted by inserting a fingernail or a pointed instrument between the gasket and the lid shell at the peripheral edge of the gasket. , the gasket is peeled off from the lid shell.

However, in such conventional types of prize crowns, although the gasket is bonded to the inner bottom surface of the lid shell with a weak adhesive force so that it can be easily peeled off, it is difficult to transport or cap the lid. Because the gasket is bonded with a certain degree of adhesive strength to prevent the gasket from falling off due to vibrations during operation and to avoid insufficient sealing, it is particularly difficult to peel it off by pulling it up with your fingernail. It is often accompanied by this, and when triggered with a sharp instrument, it is quite dangerous, especially for young children, and in fact there have been accidents where people have been injured trying to rip off the gasket of a prize crown with a sharp instrument.

Therefore, there is an increasing demand in the industry for a prize lid that includes a gasket that can be easily peeled off by hand without using sharp instruments and without difficulty.

An object of the present invention is to provide an improved prize lid that does not have the above-mentioned defects.

Another object of the present invention is to provide an improved prize lid with a gasket that is extremely easy to peel off by hand without the use of sharp instruments.

Other objects and advantages of the invention will become apparent from the following description.

According to the present invention, there is provided a prize lid comprising a lid shell having a prize display on the inner bottom surface thereof and a gasket removably adhered to the inner bottom surface of the lid shell, and the gasket includes at least a center panel portion of the lid shell. is held in a semi-adhered or non-adhered state to the inner bottom surface of the lid shell, and the center panel portion has a strip portion formed by partially partitioning the center panel portion with a breakable line. A prize lid with features is provided.

Hereinafter, the lid of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a partially cutaway side view showing the entire appearance of the prize lid body provided by the present invention. In this figure, the prize lid body 1 basically shows the inner bottom surface of the prize lid body 1. It consists of a lid shell 2 having a prize display 4 at 3, and a gasket adhered to the inner bottom surface 3.

In FIG. 1, a crown shell is shown as a representative example as the lid shell 2, but the lid shell to which the present invention is applied is not limited to this. For example, so-called roll-on pilfer caps, roll-on caps, press-screw caps, lug caps, etc. can also be used in exactly the same way.

On the other hand, the material of the gas nut applied to the lid shell is not critical either, and various synthetic resins can be used.

For example, polyolefins such as polyethylene and polypropylene; rubbers such as sterene-butadiene rubber; and polyvinyl chloride, all of which are commonly used in the art can be used.

In the present invention, polyethylene is particularly suitable as a gasket material.

The prize indicia 4 on the inner bottom surface 3 of said lid shell 1 can be provided by printing, as in the case of conventional prize crowns, and if necessary transferred to the gasket to be peeled off. You can do as you like.

Such transferable sweepstakes displays are known per se, e.g., U.S. Pat.
It is described in documents such as No. 81690 and No. 3633781.

In the prize lid of the present invention, at least the center panel portion 6 of the gasket 5 is held in a semi-adhered or non-adhered state to the inner bottom surface 3 of the lid shell 2.

At this time, the peripheral sealing part 7 of the gasket is attached to the inner bottom surface 3 of the lid shell 2 in either a non-adhered state or a semi-adhered state (i.e., a state in which the adhesion can be easily broken by a weak force). It can also be attached to the bottom surface 3.

However, as a matter of course, when the center panel portion 6 of the gasket is held in a non-adhered state to the inner bottom surface 3, the peripheral seal portion 7 of the gasket is attached to the inner bottom surface 3 of the lid shell. It cannot be attached to the substrate in a non-adhesive state, and must be maintained in a semi-adhesive state.

Otherwise, the gasket 5 would not be adhered to the inner bottom surface 3 of the lid shell, and the desired lid would not be provided.

Generally speaking, it is desirable that at least a portion of the peripheral seal portion of the gasket be semi-adhered to the inner bottom surface of the lid shell.

However, especially when the lid of the present invention is used as a lid for sealing a container filled with a high internal gas pressure such as a carbonated beverage, the peripheral sealing part of the gasket is not necessarily the same as that of the lid shell. It does not need to be semi-adhered to the inner sole surface, and may be substantially non-adhered.

Throughout this specification and claims, the gasket “
The term "center seal" refers to the thin part at the center of the gasket that does not come into contact with the sealed end of the container to be covered (the part indicated by the symbol tSp in Figure 1).On the other hand, the "peripheral seal" This refers to the thick part of the gasket periphery that has the function of tightly engaging the sealed end of the container to be covered and forming a sealed state without gas or liquid leakage.

A method known per se can be used to hold at least the center panel of the gasket in a semi-adhered or non-adhered state to the inner bottom surface of the lid shell.

For example, the entire inner bottom surface of the lid shell may be coated or printed with a lacquer or ink that weakly adheres to the applied gasket material, so that the entire gasket is semi-adhered to the inner bottom surface of the lid shell. Possible: The region of the inner bottom surface of the lid shell that is in contact with the peripheral seal of the gasket is weakly bonded to the applied gasket material (
It is also possible to coat or print a lacquer or ink (i.e. semi-adhesive) and the zone adjoining the center panel part of the gasket, respectively, with a lacquer or ink that does not substantially adhere to the applied gasket material, or, on the contrary, A lacquer or ink that does not substantially adhere to the applied gasket material is applied to the inner bottom surface of the lid shell in the zone where it contacts the peripheral seal portion of the gasket, and in the zone where it contacts the center panel portion of the gasket. The gasket material may be coated or printed with a lacquer or ink, respectively, which weakly adheres to the gasket material.

Furthermore, when maintaining the entire inner bottom surface of the lid shell in a semi-adhesive state to the gasket to which it is applied, the area where the center panel part of the gasket contacts and the area where the peripheral seal part contacts, The adhesive strength may be changed.

Alternatively, the entire inner bottom surface of the lid shell is first coated with a lacquer or ink that firmly adheres to the applied gasket material, and then coated with a lacquer or ink that does not substantially adhere to the gasket material. By using ink to completely print or halftone dot printing the region of the gasket on the inner bottom surface that contacts at least the center panel portion and changing the density of the halftone dots, the cover shell of the halftone dot printed portion is printed. It is also possible to adjust the adhesive strength of the gasket to the inner bottom surface of the gasket from semi-adhesive to substantially non-adhesive.

Furthermore, it is also possible to semi-adhere at least the center panel portion of the gasket to the inner bottom surface of the lid shell by using the method described in German Patent Publication No. 2711727, for example; Showa 49-126
484 and 52-150188 can also be applied.

For example, when polyethylene is used as a gasket material, the lacquer or ink for strong adhesion is described in British Patent No. 1.
A lacquer or ink based on oxidized polyethylene as described in No. 484209 can be used, while a semi-adhesive to non-adhesive lacquer or ink containing a mixture of oxidized polyethylene with a small proportion of other compatible resins; Examples include those containing epoxy phenol resin, epoxy urea resin, and alkyd resin.

When polyvinyl chloride is used as a gasket material, lacquers or inks for strong adhesion may be based on vinyl chloride-vinyl acetate copolymer or acrylic resin, while lacquers or inks for non-adhesion may be epoxy. Phenolic resin, epoxy urea resin,
It is preferable to use an alkyd resin as a main component.

An important feature of the lid of the present invention is that the gasket 5 is attached to the center panel part 6 by dividing a part of the center panel part by a breakable line 8, so that it can be separated from the other part of the center panel part. It has a strip part 9 that can be lifted.

This breakable line 8 can be a score carved into the center panel portion 6 of the gasket 5, as shown in FIG. 1 or FIG. 2, or a slit extending up to the inner bottom surface 3 of the lid shell. It may be shaped like a perforation or a shape like a perforation.

In short, any line groove can be carved in a part of the center panel portion 6 along the breakable line 8 in the form of a strip, as long as it can be cut off without applying a large force.

As shown in FIG. 2, the strip portion 9 formed by dividing the breakable line 8 is a discontinuous portion (bridge portion) 10 in which a part of the center panel portion 6 of the gasket is separated by the breakable line 8. can be formed by leaving only a partial encirclement so that the strip section 9 is integrated with the rest of the gasket at the discontinuity (bridge section) 10 of the breakable line 8. .

Thus, in the lid body shown in FIGS. 2 and 3, the lifting and peeling operation of the gasket 5 is performed by first cutting and lifting the strip portion 9 with a nail, and then pulling up the cut portion 9 further while pinching the cut and raised strip portion 9 with your hands. , the strip portion 9 is integrated with the center panel portion 6 or the peripheral seal portion 7 in the discontinuous portion 10, and the center panel portion 6 is coated with, for example, a single layer of semi-adhesive or non-adhesive lacquer L1, as described above. Since it is held in a semi-adhered or non-adhered state to the inner bottom surface 3 of the lid shell 2, the lifting force causes a part of the center panel portion 6 or the peripheral seal portion 7 to be attached to the inner bottom surface of the lid shell 2. 3 and can be lifted up, and eventually the entire gasket 5 is completely peeled off and can be taken out from the lid shell.

Since a prize display 4 is provided on the inner bottom surface 3 of the lid shell below this gasket 5, when this gasket 5 is peeled off and removed, the display 4 appears and becomes conspicuous.

In FIG. 3, the case where the prize display 4 remains on the inner bottom surface 3 of the lid shell is illustrated, but as shown in FIG. Display 4 is printed, and on the other hand, a layer of lacquer L that is substantially non-adhesive to the layer of lacquer L2 is printed on a portion corresponding to the gasket 5 between the layer of lacquer L2 and the inner bottom surface of the lid shell.
3, when the gasket 5 is peeled off as described above, the strong adhesive lacquer layer L2 will be broken from the portion indicated by the dotted line in the figure and lifted together with the gasket 5.

That is, the prize display 4 is transferred to the back of the gasket 5,
removed from the lid shell.

The gasket 5 on which the prize display 4 is thus transferred can be used as it is for prize purposes.

In Figs. 2 and 3, it was explained that the strip part 9 is lifted with a claw, but in order to make the operation of cutting and raising the strip part 9 even easier, the strip part 9 is lifted as shown by the dotted line in Fig. 2.3.4. It is desirable to provide a knob 11 at the tip of the portion 9.

Although the shape of the knob 11 is not critical, it is not necessary to make it larger than necessary, and it is preferable that it be as small as possible so that it can be pinched with a finger.

Its dimensional specifications depend on the size of the lid shell, but generally the height is about 2 to 5 mm and the maximum diameter is 2 to 5 mL.
It is advantageous to have a certain shape, and the shape can be any arbitrary shape such as a dome shape, a spherical shape, a cylindrical shape, a prismatic shape, etc.

Alternatively, as shown in FIGS. 5 and 6, a protruding rib 12 can be formed along the breaking line 8 that partitions the strip portion 9, so that a nail can be hooked onto the rib portion 12 at the tip of the strip portion. This makes it easier to pull up the strip portion 9, and has another advantage of reinforcing the strip portion.

The shape of the strip portion 9 is not limited to the wedge shape shown in FIG. 2, but can be made into various shapes as shown in FIG. 7A, B, or C.

For example, as shown in FIG. 7AK, both ends of the ■-shaped breakable line 80 can be stopped before reaching the peripheral seal portion 7 of the gas cut, unlike the case in FIG. U-shaped breakable line 8 as shown in
can be provided at an appropriate position on the center panel portion 6 of the gasket, for example along the peripheral seal portion 7 as shown, or from approximately the center of the center panel portion 6 of the gasket as shown in FIG. 7C. The strip portion 9 may be formed by carving a thinly wound breakable line 8 that reaches close to the peripheral seal portion 7 .

Of course, a knob 11 may be provided at the tip of the strip portion 9 surrounded by the breakable line 8, as shown by dotted lines in FIGS. 7A, B, and C, respectively.

In order to apply the specially shaped gasket described above to the inner bottom surface of the lid shell, it can be done by the usual embossing lining method, however, if a molded punch is used to create a breakable line on the surface of a part of the center and if necessary, By using a material having protrusions or recesses for forming a knob or lip, it can be easily molded.

According to the lid body of the present invention as described above, since the strip portion is formed in the center panel portion of the gasket attached to the inner bottom surface of the lid shell, the gasket can be attached very easily without using any equipment. can be peeled off, making it extremely suitable as a lid for prizes, and greatly contributing to the sales promotion effect of containers filled with the lid.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of the lid of the present invention. Fig. 2 is a plan view of the lid of the present invention from the side where the inside is visible, Fig. 3 is an enlarged cross-sectional view taken along the line ■-I in Fig. 2, and Fig. 4 shows the prize display. FIG. 5 is an enlarged partial cross-sectional view of the deformation of the lid shown in FIG. 2 when it is provided in a transferable manner; FIG. 5 is a plan view from the side where the inside of the lid of another embodiment of the present invention is visible; can be. Figure 6 shows ■1■ in Figure 5.
This is an enlarged line cross-sectional view of FIGS. 7A and 7B. C is a plan view from the side where the inside of the lid body is visible, for explaining the shapes of various strip parts. In the figure, 1...Sweepstakes lid body, 2... Lid body shell, 3.
・・Bottom surface inside the lid shell, 4・・Sweepstakes display, 5・・
Gasket, 6... Center panel portion, 7... Peripheral seal portion, 8... Breakable line, 9... Strip portion.

Claims (1)

[Claims] 1. A prize lid consisting of a lid shell having a prize display on the inner bottom surface and a gasket removably adhered to the inner bottom surface, the gasket being attached to a peripheral seal portion. and a center panel portion, and at least the center panel portion is held in a semi-adhered or non-adhered state to the inner bottom surface of the lid shell, and the center panel portion is partially bonded to the inner bottom surface of the lid shell. 1. A prize lid, comprising a strip section formed by partitioning, and by cutting and raising the strip section, the entire gasket can be peeled off from the inner bottom surface of the lid shell. 2. The lid body according to claim 1, which has a knob at the tip of the strip portion. 3. The lid according to claim 1, wherein the lid shell is a crown shell.