JP2006213387A - Pilfer-proof cap, and container with cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pilfer-proof cap in which a section of a bridge part on a pilfer-proof band side is not considerably expanded outwardly in the radial direction, and no sense of discomfort is provided by a hand or a mouth when handling the container with cap after the cap is opened, and a container with the cap with the pilfer-proof cap attached thereto. <P>SOLUTION: The pilfer-proof cap 11 has a disk-like top plate part 12 and a peripheral wall part 13 substantially suspended from a peripheral edge of the top plate part 12, and a pair of bead parts 14 and 15 protruded outwardly in the radial direction are formed on a lower portion of the peripheral wall part 13, and a slit 18 extending in the peripheral direction is formed between the pair of bead parts 14 and 15. The outward protrusion in the radial direction of one bead part 14 is set to be smaller than that of the other bead part 15, and the slit 18 is formed in one bead part 14 side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pill fur proof cap used for bottle cans, glass bottles, PET bottles, and the like, and a container with a cap to which the pill fur proof cap is attached.

  In recent years, openable and closable containers such as glass bottles, PET bottles, aluminum bottle cans, etc. have been widely used as containers for beverages such as soft drinks, and as caps used for these containers, Patent Documents 1, 2, A cap for pilfer proof in which the upper part and the lower part of the cap disclosed in No. 3 are connected by a bridge part is often used.

  9 to 12 show a conventional pilfer proof cap. The pilfer proof cap 1 shown in FIG. 9 is generally made of aluminum, aluminum alloy, iron, or the like. By drawing these metal plates, a cup-shaped material having a disk-shaped top plate portion 2 and a peripheral wall portion 3 substantially hanging from the top plate portion 2 is formed, and a lower portion of the peripheral wall portion 3 is formed. A pair of bead portions 4, 5 protruding outward in the radial direction of the cap 1 are formed, and a bridge portion 6 for connecting the pair of bead portions 4, 5 and a push-in recess between the pair of bead portions 4, 5. 7 are alternately formed in the circumferential direction, and the cap 1 is formed by forming slits 8 extending in the circumferential direction of the cap 1 in the pressing recesses 7. A portion below the slit 8 is a pilfer proof band 9.

The pilfer-proof cap 1 having the above-described configuration is placed on the base part of the container, and the peripheral wall part is plastically deformed so as to conform to the shape of the male screw part and the bulging part formed on the base part. Used by attaching to the part.
In the above pilfer proof cap 1, when the cap 1 is rotated relative to the base part, the portion above the slit 8 moves upward along the male screw part formed in the base part. On the other hand, the portion below the slit 8, that is, the pill fur proof band 9 is locked to the bulging portion of the base portion and only rotates and does not move upward. And the pilfer proof band 9 are vertically separated from each other, and the bridge portion 6 provided between the pressing recess 7 and the pressing recess 7 is cut along the slit 8.

Therefore, by visually confirming whether or not the bridge portion 6 is cut, it is possible to easily confirm whether or not the container with the cap to which the pilfer proof cap 1 is attached has been opened, thereby preventing mischief and the like. It can be done.
JP 2001-270596 A Japanese Patent Publication No.57-37518 Japanese Utility Model Publication No. 53-108553

  By the way, in the conventional pill fur proof cap 1 as described in Patent Documents 1 and 2, as shown in FIGS. 10 and 11, the slit 8 provided between the pair of bead portions 4 and 5. The cut surface is located on the radially inner side of the cap 1 with respect to the bridge portion 6, and a portion of the bridge portion 6 adjacent to the slit 8 is directed radially outward along the surface formed by the bead portion 4. Has been placed. In the horizontal cross section (XX cross section in FIG. 9) on the pilfer proof band 9 side after the cap 1 is opened, as shown in FIG. The cap 1 will protrude greatly to the outside in the radial direction.

  When the protruding amount of the bead portions 4 and 5 is too large, the bridge portion 6 has a bow shape, and when the compressive stress is applied to the cap 1, the bridge portion 6 is likely to buckle. Moreover, when the protrusion amount of the bead parts 4 and 5 is too small, there exists a possibility that a thread cutting roller or a sash winding roller may get over the bead parts 4 and 5 and crush bead parts 4 and 5 itself. For this reason, the protruding amount of the bead portions 4 and 5 needs to be within a certain range, and the protrusion of the bridge portion 6 cannot be suppressed by making the protruding amount of the bead portions 4 and 5 extremely small.

  Therefore, when opening and handling a container with a cap to which the cap for pill fur proof 1 is attached, the pill fur proof band 9 locked to the cap portion of the container with the cap after opening is used. Since the bridge portion 6 protrudes greatly outward in the radial direction of the cap 1, there is a problem that the bridge portion 6 makes the hand and mouth feel uncomfortable.

  The present invention has been made in view of the above circumstances, and the bridge portion on the pilfer proof band side does not project greatly toward the outer side in the cap radial direction, and handles a container with a cap after opening. It is an object of the present invention to provide a pill fur proof cap that does not give a sense of incongruity to the hand or mouth, and a cap-equipped container to which the pill fur proof cap is attached.

In order to solve the above problems, the present invention provides the following means.
The cap for pilfer proof according to claim 1 has a disc-shaped top plate portion and a peripheral wall portion substantially hanging from the periphery of the top plate portion, and a ring-like shape is provided at the lower portion of the peripheral wall portion. A pair of bead portions protruding outward in the radial direction is formed, and a pressing recess having a slit extending in the circumferential direction between the pair of bead portions and a bridge portion connecting the pair of bead portions in the circumferential direction. A pilfer-proof cap formed so as to be alternately positioned, and of the pair of bead parts, a protruding amount of one of the bead parts to the outer side in the radial direction is an outer side of the other bead part to the outer side in the radial direction. It is formed so that it may become small compared with protrusion amount, The said slit is formed in the said one bead part side, It is characterized by the above-mentioned.

  In the pilfer-proof cap having the above-described configuration, the protruding amount of one bead portion of the pair of bead portions is made smaller than the protruding amount of the other bead portion, and the one bead portion side on which the protruding amount is reduced is arranged. A slit is formed, and when the bridge portion is cut along the slit, the bridge portion on the pilfer proof band side is along a surface formed by one bead portion having a small protruding amount.

The cap for pilfer proof according to claim 2 is characterized in that, of the pair of bead portions, the one bead portion is disposed above and the other bead portion is disposed below.
In the pilfer proof cap having the above-described configuration, the other bead portion having a large protruding amount is disposed on the pilfer proof band side, and the bridge portion on the pilfer proof band side is positioned inside the other bead portion. The

The cap for pilfer proof according to claim 3 is characterized in that, of the pair of bead portions, the one bead portion is disposed below and the other bead portion is disposed above.
In the pilfer proof cap having the above-described configuration, the cut surface of the bridge portion is formed in a portion close to the pilfer proof band side, and the height at which the bridge portion remains as burrs on the pilfer proof band side is reduced.

A container with a cap according to a fourth aspect is characterized in that the cap for pill fur proof according to any one of the first to third aspects is attached to a container base.
In the container with a cap configured as described above, the protruding amount of one bead portion of the pair of bead portions is made smaller than the protruding amount of the other bead portion, and a slit is formed on one bead portion side where the protruding amount is reduced. The formed cap is attached to the base part, and when the cap is opened, the bridge part on the side of the pilfer proof band that is locked to the bulging part of the base part is reduced in the protruding amount. It will be along the surface formed by the bead part.

  According to the first aspect of the present invention, the bridge portion on the side of the pilfer proof band is along the surface formed by one bead portion having a small protruding amount, so that the bridge portion is large toward the radially outer side of the cap. When handling a container with a cap after opening without sticking out, it is possible to prevent the bridge part on the pilfer proof side from feeling uncomfortable in the hand and mouth.

  According to the second aspect of the present invention, since the bridge portion on the pilfer proof band side is located inside the other bead portion having a large protruding amount, when handling the cap-equipped container after opening, It is possible to reliably prevent the mouth from feeling uncomfortable.

  According to the third aspect of the present invention, the cut surface of the bridge portion is formed in a portion close to the pilfer proof band side, and the height at which the bridge portion remains as burrs on the pilfer proof band side is reduced. When handling a container with a cap after the stopper, it is possible to reliably prevent the hands and mouth from feeling uncomfortable.

  According to the invention described in claim 4, when the cap is opened, the bridge portion on the side of the pilfer proof band that is locked to the bulging portion of the base portion is one bead portion in which the protruding amount is reduced. The bridge part does not overhang outward in the radial direction of the cap, and when handling a container with a cap after opening, the bridge part on the pilfer proof side It can prevent the mouth from feeling uncomfortable.

  As described above, according to the present invention, the bridge portion on the side of the pilfer proof band does not protrude greatly toward the outside in the radial direction. It is possible to provide a cap for pilfer proof that does not give a sense of incongruity and a container with a cap to which the cap for pilfer proof is attached.

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a pilfer proof cap according to a first embodiment of the present invention.
The pilfer-proof cap 11 has a substantially disc-shaped top plate portion 12 and a peripheral wall portion 13 that is substantially suspended from the top plate portion 12. Above the cap 11, a knurled portion is formed by repeating a concave portion recessed on the inner surface side of the peripheral wall portion 13 in the circumferential direction, and on the inner surface side of the top plate portion 12, a sheet made of resin such as polypropylene. A liner is inserted and is hooked by the recess of the knurled portion. Further, a groove portion recessed in a ring shape is formed on the inner side in the radial direction of the cap 11 below the knurled portion.

  A pair of bead portions 14 and 15 projecting outward in the radial direction of the cap 11 are formed in a ring shape below the cap 11, and the cap 11 above the pair of bead portions 14 and 15. The protruding amount of the bead portion 14 positioned on the side toward the radially outer side of the cap 11 is smaller than the protruding amount of the bead portion 15 positioned on the lower side of the cap 11 toward the radially outer side of the cap 11. Yes. That is, in the first embodiment, the bead portion 14 located on the upper side of the cap 11 serves as the one bead portion, and the bead portion 15 located on the lower side of the cap 11 serves as the other bead portion. ing. Specifically, the protruding amount in the radial direction of the bead portion 14 located on the upper side of the cap 11 is 0.20 mm to 0.50 mm with respect to the peripheral wall portion 13, and the bead located on the lower side of the cap 11. The protruding amount of the portion 15 in the radial direction is set to 0.50 mm to 1.0 mm with respect to the peripheral wall portion 13.

Between the pair of bead portions 14 and 15, bridge portions 16 and pressing recesses 17 are alternately formed in the circumferential direction, and a slit 18 extending in the circumferential direction is formed in the pressing recess 17. A portion below 18 is a pilfer proof band 19. The pair of bead portions 14 and 15 are connected by the bridge portion 16, that is, the upper portion of the cap 11 and the pilfer proof band 19 are connected by the bridge portion 16.
Here, the slit 18 is formed on the side of the bead portion 14 located above the cap 11 with a small amount of protrusion of the cap 11 radially outward.

  FIG. 2 shows a cross section of the bridge portion 16 provided between the pair of bead portions 14 and 15, and FIG. 3 shows a cross section of the pushing recess portion 17 provided with the slit 18. The cut surface of the slit 18 is located on the inside of the cap 11 in the radial direction with respect to the bridge portion 16, and the bridge portion 16 extends along the surface formed by the bead portion 14 located above, but the bead portion located above this Since the protruding amount of 14 is made small, the bridge portion 16 is arranged without facing largely outward in the radial direction of the cap 11.

  FIG. 4 shows a bottle can 31 with a cap as an example of a container with a cap in which the cap 11 for pilfer proof is used. The bottle can 31 with a cap has a configuration in which the cap 11 is attached to a metal bottle can 32 (hereinafter referred to as a bottle can) formed of an aluminum alloy or the like. The bottle can 32 has a reduced diameter portion 34 that decreases in diameter upward from a cylindrical can body 33, and includes a base portion 35 above the reduced diameter portion 34. The base part 35 is formed with a male screw part 36, a bulging part 37, and a curled part 38.

  The pilfer proof cap 11 is used by being attached to the cap portion 35 of the bottle can 32. That is, the pill fur proof cap 11 is put on the base part 35 of the bottle can 32, and rotates around the base part 35 in a state where the screw forming roller of the capping device is pressed against the peripheral wall part 13 of the cap 11. By rolling along the male screw portion 36 formed on the base portion 35, a female screw corresponding to the male screw portion 36 of the base portion 35 is formed on the inner surface of the peripheral wall portion 13 of the cap 11. The lower end of the pilfer proof band 19 is wound under the bulging part 37 formed on the base part 35 and attached to the curl part 38 and the cap 11 formed on the base part 35 of the bottle can 32. It is sealed by being in close contact with the liner mounted on the inner surface of the top plate 12.

  Thus, when opening the bottle can 32 to which the cap 11 for pilfer proof was attached, the said cap 11 is rotated in the state which hold | maintained the bottle can 32 in the fixed position. By this rotation, the upper portion of the cap 11 above the slit 18 rotates while being moved upward along the male screw portion 36 formed in the base portion 35, while the pilfer proof below the slit 18. Since the band 19 is locked by the bulging portion 37 of the base portion 35 and rotates but does not move upward, the upper portion of the cap 11 and the pilfer proof band 19 are separated from each other in the vertical direction. When the bridge portion 16 provided between the pressing recess 17 is cut along the slit 18 and the upper portion of the cap 11 is detached from the bottle can 32, the liner and the curled portion 38 of the base portion 35 are separated from each other. It is opened.

FIG. 5 shows a horizontal cross section (XX cross section in FIG. 1) of the pilfer proof band 19 portion of the pilfer proof cap 11 having the above configuration.
The bridge portion 16 on the pilfer proof band 19 side is arranged along the surface formed by the bead portion 16 located above the cap 11 having a small protruding amount. The bridge portion 16 on the pilfer proof band 19 side is shown in FIG. As shown in FIG. 3, since the bottle-shaped bottle can 31 with the cap after opening is not greatly protruded outward in the radial direction, it is possible to prevent the hand or mouth from feeling uncomfortable.

  Further, since the bridge portion 16 is cut near the upper portion of the cap 11, the bridge portion 16 remaining as burrs on the upper portion side of the cap 11 is reduced, and when handling the upper portion of the cap 11, the burr feels uncomfortable with the hand. Can be remembered.

  FIG. 6 shows a pilfer proof cap according to a second embodiment of the present invention. In this pilfer proof cap 41, of the pair of bead portions 44, 45 provided below the cap 41, the amount of protrusion of the bead portion 44 located on the upper side of the cap 41 to the outer side in the radial direction of the cap 41 is The bead portion 45 positioned on the lower side of the cap 41 is larger than the protruding amount of the cap 41 to the radially outer side of the cap 41. That is, in the second embodiment, the bead portion 45 located on the lower side of the cap 41 is one bead portion, and the bead portion 44 located on the upper side of the cap 41 is the other bead portion. . Specifically, the amount of protrusion in the radial direction of the bead portion 44 located on the upper side of the cap 41 is 0.50 mm to 1.0 mm with respect to the peripheral wall portion 13, and the bead located on the lower side of the cap 41. The protruding amount of the portion 45 in the radial direction is set to 0.20 mm to 0.50 mm with respect to the peripheral wall portion 13.

  And between this pair of bead portions 44, 45, bridge portions 46 and pressing recesses 47 are alternately formed in the circumferential direction, and in the pressing recess 47, slits 48 extending in the circumferential direction are formed, The slit 48 is formed on the side of the bead portion 45 positioned below the cap 41 with a small amount of protrusion of the cap 41 radially outward.

  FIG. 7 shows a cross section of the bridge portion 46 provided between the pair of bead portions, and FIG. 8 shows a cross section of the push-in recess 47 provided with the slit 48. The cut surface of the slit 48 is located on the inner side of the cap 41 with respect to the bridge portion 46, and the bridge portion 46 extends along the surface formed by the lower bead portion 45. Since the protruding amount is small, the bridge portion 46 is arranged without greatly facing the radial outside of the cap 41.

  In the above-described pilfer proof cap 41, the bridge portion 46 on the pilfer proof band 49 side is arranged along the surface formed by the lower bead portion 45 having a small protruding amount, and the pilfer proof band 49 side Since the bridge portion 46 does not protrude greatly outward in the radial direction, it is possible to prevent the hands and mouth from feeling uncomfortable when handling the bottle can 31 with cap after opening.

  Moreover, since the cutting surface of the bridge part 46 is formed in the vicinity of the pilfer proof band 49 and the height at which the bridge part 46 remains as a burr is low, the bottle can 31 with a cap after opening is handled. At this time, this burr can prevent the hands and mouth from feeling uncomfortable.

  In addition, since the protruding amount of the upper bead portion 44 is increased, there is no possibility that the thread roll will get over the bead portion 44 and crush the bead portion 44 when the cap 41 is tightened. There is no risk of it happening.

In addition, in this embodiment, although the bottled bottle with a cap using a metal bottled can was demonstrated as a container with a cap, it is not limited to this, For example, it is a metal pilfer to a glass bottle or a PET container. A proof cap may be attached.
In addition, the liner mounted inside the pill fur proof cap has been described as a seat type and is configured to be hooked at the knurled portion, but is not limited to this, for example, the inner surface of the pill fur proof cap Alternatively, an in-shell mold type liner may be used in which a melted resin is put on and embossed.

It is a fragmentary sectional view of the cap for pilfer proofs which is the 1st Embodiment of this invention. It is a cross-sectional enlarged view of the bridge part in the cap for pilfer proofs of FIG. It is a cross-sectional enlarged view of the slit in the cap for pilfer proofs of FIG. It is a fragmentary sectional view of a bottle can with a cap. It is XX sectional drawing in FIG. It is a fragmentary sectional view of the cap for pilfer proofs which is the 2nd Embodiment of this invention. It is a cross-sectional enlarged view of the bridge part in the cap for pilfer proofs of FIG. It is a cross-sectional enlarged view of the slit in the cap for pilfer proofs of FIG. It is a fragmentary sectional view of the conventional cap for pilfer proof. FIG. 10 is an enlarged cross-sectional view of a bridge portion in the pilfer proof cap of FIG. 9. FIG. 10 is an enlarged sectional view of a slit in the pilfer proof cap of FIG. 9. It is XX sectional drawing in FIG.

Explanation of symbols

11, 41 Pilfer proof cap 12 Top plate portion 13 Peripheral wall portion 14, 15, 44, 45 Bead portion 16, 46 Bridge portion 17, 47 Pushing recess 18, 48 Slit 19, 49 Pilfer proof band 31 Bottle can with cap (Container with cap)

Claims (4)

It has a disk-shaped top plate portion and a peripheral wall portion that is substantially suspended from the periphery of the top plate portion, and a pair of bead portions protruding radially outward in a ring shape are formed at the lower portion of the peripheral wall portion For the pilfer proof, the indentation recess having a circumferentially extending slit and the bridge portion connecting the pair of bead portions are alternately positioned in the circumferential direction between the pair of bead portions. A cap,
Of the pair of bead portions, the protruding amount of one bead portion radially outward is smaller than the protruding amount of the other bead portion radially outward, and the slit is A cap for pilfer proof formed on the one bead portion side.   2. The pilfer proof cap according to claim 1, wherein, of the pair of bead portions, the one bead portion is disposed above and the other bead portion is disposed below.   2. The pilfer proof cap according to claim 1, wherein, of the pair of bead portions, the one bead portion is disposed below and the other bead portion is disposed above.   A container with a cap, wherein the cap for pilfer proof according to any one of claims 1 to 3 is attached to a container base.

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