JP4647994B2 - Virgin cap - Google Patents

Description

The present invention relates to a virgin cap for preventing unauthorized opening as soon as it is opened. Specifically, it prevents unauthorized opening and does not leave a tubular ring broken from the cap body in the bottle. It relates to a virgin cap.

If unauthorized opening can be detected and prevented while bottles containing various beverages and foods are displayed at the storefront, the contents can be protected and sold safely. You can buy it with heart. In order to achieve such an object, a so-called virgin cap has been conventionally used.

A conventional virgin cap has a cap body and a tubular body (virgin portion) continuously connected via a longitudinal bridge, and the virgin portion is engaged with a bead (ring-shaped ridge below the screw portion) of the bottle. When the cap is opened, the bridge is broken, and the cap body is removed from the bottle mouth portion while the virgin portion is engaged with the bead.

Therefore, although the virgin portion remains in the bottle mouth portion, there is a problem that it is difficult to recycle since the bottle and the virgin portion are usually made of different materials. In order to eliminate such drawbacks, a virgin cap has been developed in which one portion of the virgin portion is cut in advance and the virgin portion is removed from the bottle mouth when opened (Patent Document: JP-A-57-28767). Furthermore, most of the bridge that connects the virgin part and the cap body at the time of opening breaks, but a part of the bridge is not broken, in other words, by leaving some bridges connected, the virgin part is capped. Virgin caps that can be removed together with the main body have been developed.

However, in the virgin cap, one part of the virgin part is cut in advance (a slit is formed), so when the virgin part gets over the bead of the bottle when the cap is tightened, the cutting part spreads and cuts. There is a problem that the vertical bridge located in the vicinity of the portion breaks. Not only that, the virgin cap is formed with a non-breaking bridge so that the virgin part can be removed together with the cap body. The load on the vertical bridge located in the vicinity of the cut portion on the other end side becomes larger and tends to break.
JP-A-57-28767

The virgin cap is effective in that it can be opened without breaking the bridge so that it can detect unauthorized opening, but as described above, the load on the vertical bridge located near the cut portion on the other end side is more There is a problem that it becomes large and easily breaks, and this problem is caused when the plastic material forming the virgin cap is hard or when the plastic is hardened due to the environment when tightening the cap (for example, tightening at low temperature) In such a case, the vertical bridge located near the cut portion of the virgin portion may break when the virgin portion when the cap is tightened gets over the bead of the bottle. There has been a problem that it may occur that cannot be detected.

The present invention is intended to solve such problems, can sufficiently achieve the purpose of preventing unauthorized opening, prevents the virgin portion from remaining in the bottle mouth portion, and at the time of plastic type and cap tightening. It is an object of the present invention to provide a virgin cap in which the bridge of the easily ruptured connecting portion is not easily cut when closed and is easily cut when opened.

In the invention according to the first aspect of the present invention that meets the above-described object, the cylindrical ring in which a longitudinal slit is formed is continuously provided in the opening of the cap body via the easily breakable connecting portion and the non-breakable connecting portion, A concave portion or a convex portion is formed in the vicinity of the vertical slit of the cylindrical ring, and a stopper for controlling movement of the concave portion or the convex portion is provided on the cap body, and the concave portion or the convex portion of the cylindrical ring is provided. And the stopper are connected by a lateral bridge capable of detecting tampering, and the concave part or the convex part and the non-breaking connecting part are positioned so as to sandwich the vertical slit on both sides of the vertical slit. When the cap body is screwed into the bottle mouth, the cylindrical ring is engaged with the bead of the bottle, and the cap body is rotated in the opening direction, the cap body and the cylindrical ring are easily broken. The connecting part is broken but not broken The virgin cap is characterized in that the cap body and the cylindrical ring are formed so as to be detached from the bottle mouth together without being broken.

In short, according to the present invention, the force to widen the vertical slit when the cap is closed acts as a force for pressing the stopper provided on the cap body by the concave portion or the convex portion of the cylindrical ring via the lateral bridge. The gist of the invention is that the longitudinal slit is not widened and the easily breakable connecting portion that connects the cap body and the cylindrical ring is not cut. The lateral bridge is a bridge connected in the rotation direction of the cap, and is preferably formed from an elastic material.

The “stopper for controlling the movement of the concave portion or the convex portion” means, for example, (1) a convex portion provided on the cap body so as to be fitted to the concave portion of the cylindrical ring at intervals, (2 ) A concave portion provided in the cap body so as to be fitted to the convex portion of the cylindrical ring at an interval, and (3) a cap portion so as to contact (engage) the convex portion of the cylindrical ring. convex portion provided (wall), refers to the equal, the concave portion or convex portion of the cylindrical ring are connected by the stopper and the transverse bridge. Specific examples of these include, but are not limited to, those described in FIGS. 5 to 10.

The stopper for controlling the movement is preferably a convex portion or concave portion to fit with the concave portion or convex portion and the spacing of the cylindrical ring (claim 2). In this case, when the cap body is rotated in the closing direction, the lateral bridge moves the concave portion or the convex portion of the cylindrical ring so that a gap with the convex portion or the concave portion of the cap body is formed. It is preferable to provide it at a position where the force of narrowing acts (claim 3 ).

Do the concave part and the convex part of the cylindrical ring form in the vicinity from the vertical slit toward the plugging direction, and do the non-breaking connection part form in the vicinity from the vertical slit to the plugging direction? 4 ), the concave portion and the convex portion of the cylindrical ring are formed in the vicinity from the vertical slit toward the opening direction, and the non-breaking connecting portion is in the vicinity from the vertical slit to the closing direction. (Claim 5 ).

It is preferable to provide a longitudinal bridge that connects the cylindrical ring and the cap body between a vertical slit of the cylindrical ring and a concave portion or a convex portion formed in the cylindrical ring. 6 ). The vertical slit is preferably a cutting portion, and the vertical (longitudinal direction) means a direction orthogonal to the rotation direction of the cap, but it is needless to say that it does not have to be completely orthogonal.

A concave portion is formed near the vertical slit of the cylindrical ring, a stopper for controlling movement of the concave portion is provided on the cap body, and the concave portion and the non-breaking connecting portion are provided on both sides of the vertical slit. The upper surface between the vertical slit of the cylindrical ring and the concave portion formed in the cylindrical ring has a rear end portion convex toward the plugging direction. This is preferable because the longitudinal bridge is more difficult to cut (Claim 7 ) .

The cylindrical ring has the longitudinal slit portion a ring-shaped engagement projection on the inner peripheral surface excluding the vicinity preferable to engage the engagement projections on the bead (claim 8).

It is preferable to form a groove on the cap opening side of the engaging protrusion and the cylindrical ring connecting portion so that the engaging protrusion can be easily lifted and inclined.

The easily breakable connecting portion between the cap body and the cylindrical ring is a longitudinal bridge having a large number of elasticity provided at intervals, and the non-breaking connecting portion is formed with a large (thick) cross-sectional area so as not to be broken. A vertical bridge is preferable.

A plurality of engagement pieces are provided on the inner surface of the cylindrical ring at intervals to form the (substantially) ring-shaped engagement protrusions, and the engagement pieces are formed so as to be inclined upward. It is good to make it easier to get over the bead and engage.

The virgin cap of the present invention may be made of an elastic material, preferably a synthetic resin (claim 11).

According to the present invention, at the time of opening, the bridge can be easily broken so as not to leave the cylindrical ring in the bottle mouth, and even when the plastic material is hard or the cap is tightened at a low temperature, Since the bridging of the easily breakable connecting portion due to the expansion of the cylindrical ring at the time is prevented, unauthorized opening can be effectively prevented regardless of the plastic material and the environment at the time of tightening the cap.

In the present invention, the non-breaking connecting portion is a bridge formed so as not to be broken at the time of closing and opening, and the easily breakable connecting portion is not broken at the time of closing, but formed so that it can be broken at the time of opening. Of course, if the cap body and the cylindrical ring come out of the bottle mouth together, it is a matter of course that an unbroken bridge may be mixed.

Next, embodiments of the present invention will be described with reference to the drawings.

1 and 2 show an embodiment of the present invention, and a cap body 2 having a threaded portion 1 formed on an inner peripheral surface and a longitudinal bridge 3 having elasticity in the cap body 2. A cylindrical ring (short cylindrical body) 4 continuously provided so as to be able to be broken leaving a part, a longitudinal cut portion (longitudinal slit) 5 of the tubular ring 4, and the vicinity of the cut portion 5 A concave portion 6 formed on the upper part of the cylindrical ring 4, a convex portion 7 formed on the cap main body 2 that is fitted to the concave portion 6 with a space therebetween, and a gap 8 in the direction of the cutting portion 5 of both concave and convex portions. The example formed from the horizontal bridge | bridging 9 to connect, and the vertical bridge | bridging 3 '' which connects the said cylindrical ring 4 and the cap main body 2 is shown. The cutting part 5 is partly removed from the ring and is separated at a slight interval.

The non-breaking connecting portion 3 ″ is formed on the opposite side of the concave portion 6 formed in the cylindrical ring (virgin portion) 4 with the cutting portion 5 interposed therebetween. By forming in this way, the longitudinal bridge does not break even when a force is applied to the vicinity of the cutting part 5 of the virgin part 4 when getting over the bead of the bottle at the time of closing, and at the time of opening the stopper Even if a force for separating the cylindrical ring 4 and the cap body 2 is applied, the non-breaking connecting portion 3 ″ is not broken, so the bridge on the concave portion 6 side is broken and the cap can be easily removed from the bottle mouth. Can be removed.

In the present invention, the lateral bridge 9 and the longitudinal bridge 3 ′ are radially outward from the longitudinal slit (vertical cut portion) 5 of the cylindrical ring 4 when the engaging piece 10 is bent, transported, and capped. to prevent the spread that provided as one object. The bridge 3 'is preferably provided, but the object of the present invention can be achieved without it. Further, the lateral bridge 9 can prevent unauthorized opening in the same manner as the lateral bridge connecting the conventional cutting portions 5. Therefore, the cutting part 5 may be further connected by a bridge or the like, but there is no particular advantage of the connection.

When the cap is closed, a force to spread is applied to the cutting portion 5, and the force presses the lateral bridge 9 as shown by an arrow in FIG. 1, so that the bridge 9 is connected to the conventional cutting portion 5 in the lateral direction. There is no danger of cutting like a bridge.

The upper end of the cylindrical ring 4 is formed in a concavo-convex shape and is connected to the cap body 2 by a number of longitudinal bridges 3 located in the concave portion 11. The cap body 2 is preferably connected by a longitudinal bridge 3 ′ between the vertical slit (cut portion) 5 and the concave portion 6 of the cylindrical ring. Thus, by providing the longitudinal bridge 3 ′ at this position, the longitudinal slit 5 of the cylindrical ring 4 is more radially outwardly spread when the engagement piece (flap) 10 is bent, transported, or capped. It can be effectively prevented. In addition, the upper end of the cylindrical ring 4 does not necessarily need to be formed uneven.

Since the convex portion 7 serves as a stopper for the concave portion 6, the longitudinal bridge 3 ′ can be prevented from being cut at the time of closing. The surface of the concave portion 6 that forms the gap 8 and the surface of the convex portion 7 are formed in parallel with the vertical slit 5. This does not necessarily have to be the case, but with this configuration, there is no risk of sliding, and the function as a stopper is enhanced.

Moreover, in the said Example, the rear-end part is formed in the convex shape 16 toward the plugging direction, as for the upper surface (connection surface) between the vertical direction bridge | bridging 3 'and the recessed part 6. FIG. This may not necessarily be the case, but if configured in this way, the upper end of the convex 16 can be prevented from being compressed and deformed by abutting the cap body and the vertical slit 3 The spreading resistance of 5 increases and the longitudinal bridge 3 ′ becomes more difficult to cut.

As shown in FIGS. 1 and 2, a large number of engagement pieces (flaps) 10 are provided at the lower end of the cylindrical ring 4 so as to be inwardly spaced from each other. It is composed. In addition, as shown in FIG. 2, the engagement piece 10 does not exist in the longitudinal slit part 5 and its both sides vicinity. With this configuration, the spreading resistance of the vertical slit 5 at the time of closing can be reduced, and the longitudinal bridge 3 ′ can be prevented from being cut due to the spreading.

As shown in FIG. 3, a groove 12 is formed in a ring shape at the lower part (cap opening side) of the connecting portion between the engagement piece 10 and the cylindrical ring 4, and the inside of the engagement piece 10 as shown in FIG. A V-shaped groove 17 is formed in the lateral direction at the center (opposite the cap opening). The V-shaped groove 17 expands upward as it advances forward from the connecting portion. By providing the grooves 12 and 17 as described above, the engagement piece 10 is easily inclined upward, the resistance to climbing over at the time of capping is reduced, and the spread from the slit portion 5 is also prevented.

As shown in FIG. 4, when the screw portion 1 of the cap body 2 is screwed into the screw portion 14 of the bottle 13, the engagement piece 10 of the cylindrical ring 4 comes into contact with the bead 15 below the screw portion 14. The piece 10 is tilted upward and gets over the bead 15 of the bottle. In this state, the ascending engagement piece 10 is slightly lowered, so that the cylindrical ring 4 does not rise even if the cap body 2 is rotated in the opening direction.

The material of the bottle 13 may be glass or plastic, but glass is desirable.

Moreover, the thread of the screw part 14 of the bottle 13 is formed one turn more than a general thing, By doing in this way, the virgin cap of this invention can be firmly screwed now.

Then, when the cap body 2 is rotated in the opening direction, the engagement piece 10 is engaged with the bead 15, but since a force for separating the cylindrical ring 4 and the cap body 2 acts, The direction bridges 3, 3 'and the transverse bridge 9 break. The longitudinal bridge 3 ″ that is not broken is formed thick (strong) so as not to break. That is, in the case of the present embodiment, the longitudinal bridges 3 and 3 ′ and the lateral bridge 9 correspond to an easily breakable connecting portion, and the longitudinal bridge 3 ″ corresponds to a non-breakable connecting portion.

In the above embodiment, the number of the horizontal bridge 9 and the vertical bridge 3 'is one, but a plurality of them may be used. When a plurality of rings are used, it is possible to more effectively prevent the cylindrical ring from spreading outward in the radial direction.

FIG. 5 is a virgin cap of the embodiment of FIG. 1. A portion surrounded by a dotted line shows a main part of the present invention, and FIGS. 6 to 10 show other embodiments in which the A portion is enlarged. Is shown.

As shown in FIG. 6, the concave part 6 of the cylindrical ring 4 is formed in the vicinity from the vertical slit 5 toward the opening direction, and the non-breaking connecting part 3 ″ is the vicinity from the vertical slit 5 in the closing direction. You may form in. Even if it is formed in the reverse of FIG. 5 as described above, even when a force is applied to the tubular ring 4 and the cap body 2 at the time of opening, the non-breaking connecting portion 3 ″ is not broken. The bridge on the concave portion 6 side is broken and the cap can be removed from the bottle mouth without any trouble.

Further, as shown in FIGS. 7 and 8, a convex portion 18 may be formed on the cylindrical ring 4, and a concave portion 19 may be formed on the cap body 2 to be fitted to the convex portion 18 at intervals. In both of these embodiments, when the bottle bead is overcome (when the bottle is closed), the tubular ring 4 is slightly expanded, and the lateral bridge 9 is provided in the direction in which the convex portion 18 moves to the concave portion 19. Yes.

As shown in FIG. 9, the surface of the concave portion 6 and the surface of the convex portion 7 forming the gap 8 are not parallel to the vertical slit 5 as in the above embodiment, but approach the vertical slit 5 downward. It may be inclined like this. If comprised in this way, the recessed part 6 will become difficult to slide further, and the function as a stopper will increase.

As shown in FIG. 10, a convex portion 18 is formed on the cylindrical ring 4, a convex portion (stopper) 20 is formed on the cap body 2, and both convex portions 18, 20 are connected by a lateral bridge 9. You may do it. Also in this case, the surfaces of the two convex portions 18 and 20 that form the gap 8 ″ between the two convex portions may be inclined so as to approach the vertical slit 5 downward. Moreover, although the said Example provided all the horizontal bridge | bridging 9, this does not interfere.

In any of the above embodiments, when the stopper is closed, the longitudinal bridge is not broken by the action of the stopper even if a force to spread near the cutting portion 5 of the virgin portion 4 is applied when the bottle bead is moved over. When the plug is opened, the non-breaking connecting portion 3 ″ is not broken even if a force for separating the cylindrical ring 4 and the cap body 2 is applied. The bridge on the side sandwiching can be broken and the cap can be removed from the bottle mouth without any trouble, and the object of the present invention can be achieved.

The virgin cap of the present invention is preferably formed of a synthetic resin, but is particularly preferably formed by integral molding by injection molding of a thermoplastic resin such as polypropylene resin. This is because the manufacturing cost can be reduced because the molding can be performed once with one type of mold. In addition, when forming the virgin cap of the present application by combining two or more parts made using two or more molds instead of integral molding, the cap body 2 is formed using a hard synthetic resin. The cylindrical ring 4 is preferably formed using a synthetic resin having elasticity.

In the embodiment of the present invention as shown in FIGS. 1 and 6 to 10, a concave portion or a convex portion formed near the longitudinal slit 5 of the cylindrical ring and a stopper formed on the cap body 2 are laterally arranged. Since it is connected by the directional bridge 9, it cannot be opened unless the lateral bridge 9 is broken, so that the purpose of preventing unauthorized opening can be sufficiently achieved, and the lateral bridge 9 is not broken when closed, and is broken when opened. and it is possible to lift the virgin part together, virgin portion of Ru can be so as not to remain in the bottle opening.

Further, when the plug is closed, the force to spread the vertical slit 5 is suppressed by the stopper, so that it is possible to effectively prevent the vertical bridge 3 'and the horizontal bridge 9 from being cut.

It is the partially broken front view which shows one Example of this invention. It is HH 'sectional drawing of FIG. It is GG 'sectional drawing of FIG. It is a front view of the bottle used for this invention. It is a front view which shows the principal part (A) of the Example of FIG. It is an enlarged view of the principal part (A) which shows the other Example of this invention. It is an enlarged view of the principal part (A) which shows the other Example of this invention. It is an enlarged view of the principal part (A) which shows the other Example of this invention. It is an enlarged view of the principal part (A) which shows the other Example of this invention. It is an enlarged view of the principal part (A) which shows the other Example of this invention.

1 ······························································································
4 .......... Tubular ring (virgin part)
5 .......... Vertical cut (longitudinal slit)
6 .......... concave part 7 ......... convex part 8, 8 ', 8 "......... gap 9 ...... lateral bridge 10 ......... engagement piece (flap)
11 ......... Recess 12 ......... Ring groove 13 ...... Bottle 14 ......... Bottle screw 15 ...... Bead 16 ......... Convex 17 ......... V-shaped -Shaped groove 18 ... ... convex part 19 formed on the cylindrical ring ... ... concave part 20 formed on the cap body ... ... convex part formed on the cap body

Claims (12)

A cylindrical ring formed with a vertical slit is connected to the opening of the cap body via an easily breakable connecting portion and a non-breakable connecting portion, and a concave or convex portion is provided in the vicinity of the vertical slit of the cylindrical ring. The cap body is provided with a stopper for controlling the movement of the concave portion or convex portion, and the concave portion or convex portion of the cylindrical ring and the stopper are lateral bridges that can detect unauthorized opening. The concave portion or the convex portion and the non-breaking connecting portion are positioned so as to sandwich the vertical slit on both sides of the vertical slit, and the cap body is screwed into the bottle mouth, and the cylindrical ring When the cap body is engaged with the bead of the bottle and the cap body is rotated in the opening direction, the easily breakable connecting portion between the cap body and the cylindrical ring and the lateral bridge are broken, but the non-breaking connecting portion. Does not break, Virgin cap, characterized in that said cylindrical ring and the body is formed to deviate from the bottle mouth together. The stopper for controlling the movement, virgin cap according to claim 1, which is a convex portion or concave portion to fit with the concave portion or convex portion and the spacing of the cylindrical ring. The lateral bridge is a force that, when the cap body is rotated in the closing direction, the concave portion or the convex portion of the cylindrical ring moves to narrow the gap between the convex portion or the concave portion of the cap body. The virgin cap according to claim 1 or 2 provided at a position where the The concave portion and the convex portion of the cylindrical ring are formed in the vicinity from the vertical slit toward the plugging direction, and the non-breaking connection portion is formed in the vicinity from the vertical slit to the plugging direction. The virgin cap in any one of Claims 1-3 . The concave portion and the convex portion of the cylindrical ring are formed in the vicinity from the vertical slit toward the opening direction, and the non-breaking connection portion is formed in the vicinity from the vertical slit to the closing direction. The virgin cap according to any one of claims 1 to 4. A longitudinal bridge that is an easily breakable connecting portion that connects the cylindrical ring and the cap body between a vertical slit of the cylindrical ring and a concave portion or a convex portion formed in the cylindrical ring. The virgin cap according to any one of claims 1 to 5 . A concave portion is formed near the vertical slit of the cylindrical ring, a stopper for controlling movement of the concave portion is provided on the cap body, and the concave portion and the non-breaking connecting portion are provided on both sides of the vertical slit. The upper surface between the vertical slit of the cylindrical ring and the concave portion formed in the cylindrical ring has a rear end portion convex toward the plugging direction. The virgin cap in any one of Claims 1-6. The cylindrical ring has a ring-shaped engagement protrusion on an inner peripheral surface excluding the vertical slit portion and the vicinity thereof, and engages the engagement protrusion with the bead. Virgin cap as described. 9. The virgin cap according to claim 8, wherein a groove is formed on the cap opening side of the engaging protrusion and the cylindrical ring connecting portion so that the engaging protrusion can be easily lifted and inclined. The easily breakable connecting portion between the cap main body and the cylindrical ring is a longitudinal bridge having a large number of elasticity provided at intervals, and the non-breaking connecting portion is a vertical cross section having a large transverse area so as not to be broken. The virgin cap according to any one of claims 1 to 9, which is a directional bridge. The number of engaging pieces provided at intervals on the inner surface of the cylindrical ring to form the ring-shaped engaging protrusion, and the engaging pieces are formed so as to be inclined upward. The virgin cap according to any one. The virgin cap according to any one of claims 1 to 11, wherein the virgin cap is made of a synthetic resin.

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