JP4548023B2 - Tamper-proof cap - Google Patents

Description

  The present invention is a hinge cap in which a lid is connected to the rear part of the cap body through a hinge so that the cap can be opened and closed.When the cap is tampered with in the distribution process or at the storefront, it is obvious from the appearance that the tamper has been tampered with. The present invention relates to a cap with an unauthorized opening prevention function that can be found.

  Conventionally, a tamper-resistant opening of a product at a store in the market, for example, a mouth cap of a PET bottle (both polyethylene terephthalate biaxially stretched blow-molded) has a hinge cap connected to the cap body via a hinge. The cap lid is deliberately opened and pulled on the pull ring accommodated in the extraction cylinder of the cap body, and is provided on the sealing plate below the inside of the extraction cylinder. There were many mischiefs of breaking the annular thin line of weakness and opening the cap body, then closing the lid on the cap body again and returning it to the store as it was.

  However, since the above-mentioned conventional cap with a lid is the one in which the container is opened only after the sealing plate that seals the dispensing cylinder is opened by the pull ring, It was not taken. Caps with a function to prevent unauthorized opening are being developed, but even if they were opened illegally, it was difficult to understand from the appearance that they were opened illegally.

  The present invention solves the problems of the above-mentioned conventional cap, and when the lid is tampered with in the distribution process or at the storefront, evidence of tampering remains, and it is clear from the appearance that tampering has occurred. The present invention provides a cap with an unauthorized opening prevention function that can be confirmed.

That is, the present invention provides an insertion recess having a locking recess at the lower end from the upper surface of the rear portion of the peripheral wall of the cap body to be opened by the pull ring, and a thin weak line is provided on the upper outer peripheral surface of the front portion of the peripheral wall of the cap body. Connecting the tamper-evident connection band to the other end of the tamper-evident connection band and connecting it to the center tip position in the left-right direction of the opening knob protruding from the front of the lid through the thin fragile line, An insertion locking part having a locking projection at the tip is connected to the outer peripheral surface of the upper end of the peripheral wall of the lid via a hinge, the lid is closed to the cap body, and the insertion locking part of the lid is inserted into the insertion recess of the cap body. A cap with a tamper-evident prevention function , wherein the cap body, the hinge, the lid, and the tamper-evident connection band are integrally formed .

  As shown in FIG. 2, when the cap (10) is closed to the cap body (100) and is not opened, the rear portion of the lid is hinged (300). ), And an opening / closing knob (230) protruding in front of the lid is connected to the center tip position in the left-right direction via a thin fragile wire (401). A band (400) is connected, and the other end of the tamper-evident connection band is connected to the upper outer peripheral surface of the front portion of the peripheral wall (150) of the cap body. For this reason, if the lid is tampered with from the cap body with the opening / closing knob in the distribution process or at the storefront, the thin fragile wire (401 or 402) at the upper or lower end of the tamper-evident connection band or the thin wall at both ends The line of weakness (401 and 402) is always broken. Since the broken tamper-evident connection band cannot be restored to its original state, evidence that it has been tampered with remains, and from the breakage of the thin weak line of the tamper-evident connection band, It can be confirmed at a glance from the appearance that it has been tampered with.

  Next, an embodiment of the cap with an unauthorized opening preventing function of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a cross-sectional view of a cap with a tamper-evident prevention function according to the present embodiment in a state in which the lid is opened. FIG. 2 shows an insertion lock that is connected to a hinge behind the lid after the lid is closed to the cap body. It is a side view when a part is inserted in the insertion recessed part of the back of a cap main body, is locked, and a cap is sealed.

  The cap (10) with an unauthorized opening prevention function of the present embodiment is a cap body (100) that opens a sealing plate (140) that seals the inside of the extraction tube (130) with the pull ring (144) shown in FIG. As shown in FIG. 2, the rear portion is a so-called hinge cap in which the lid (200) is connected via the hinge (300) so as to be openable and closable, and has a function of preventing unauthorized opening in the distribution process or in the store. . In addition, the cap with an unauthorized opening preventing function of the present embodiment has an annular thin line of weakness (142) and thin line of weakness (401, 402) shown in FIG. 1 and a predetermined force (normal force for opening). 1 is added to the cap body (100), hinge (300), lid (200) shown in FIG. 1 by an injection molding method using a thermoplastic resin such as low-density polyethylene that can be broken. ), And the tamper-evident connection band (400) is formed integrally. The strength of the thin weak line is adjusted by the material, thickness and width of the molding material.

As shown in FIG. 1, the structure of the cap (10) with an unauthorized opening prevention function of this embodiment is
An insertion recess (160) having a locking recess (161) at the lower end is provided below the upper surface of the front portion of the peripheral wall (150) of the cap body (100) to be opened by the pull ring (144). A tamper-evident connection band (400) is connected to the upper outer peripheral surface via a thin fragile line (402), and a lid (200) is connected to the other end of the tamper-evident prevention connection band via a thin fragile line (401). The opening knob (230) projecting from the front part of the lid is connected to the center tip position in the left-right direction, and has a locking projection (311) at the tip of the upper peripheral surface of the peripheral wall of the lid via a hinge (300). The insertion locking part (310) is connected.

  As shown in FIG. 1, the cap body (100) has a dripping prevention cylinder (120) having an occlusal ring (121) with a lid (200) on the outer periphery at the outer periphery inside edge of the top plate (110). The inner sealing ring (111) with the container (the outer peripheral surface is in close contact with the inner peripheral surface of the container mouth neck) is suspended on the inner bottom surface of the top plate. A sealing plate (140) is provided at the inner lower end of the pouring cylinder and sealed, and an annular cut (141) is provided on the lower surface at an expected opening position of the sealing plate, and an annular thin weak line (142) is provided on the upper surface. A strut (143) having a pull ring (144) at its tip protrudes from a position near the inside of the annular thin line of weakness, and an occlusal ring (151) with a container on the inner peripheral surface of the lower end of the peripheral wall (150) Is provided.

  As shown in FIG. 1, the lid (200) has an inner sealing ring (211) with the cap main body (100) on the lower surface of the top plate (210) (the outer peripheral surface is the inner peripheral surface of the upper end portion of the extraction cylinder of the cap main body). The occlusion ring (221) with the cap body is provided on the inner peripheral surface of the lower end of the peripheral wall (220).

As shown in FIG. 1, the cap (10) with an unauthorized opening prevention function of the present embodiment closes the lid (200) on the cap body (100) (arrow), and caps the plug insertion locking portion (310). The cap is sealed by inserting the locking projection (311) into the locking recess (161) by being inserted into the insertion recess (160) of the main body. Then, the sealed cap is attached to the mouth and neck of the container filled with the contents by a stoppering method. The attachment with the container is not limited to the occlusion of the present embodiment, and may be by screwing.

  The cap (10) with an unauthorized opening prevention function of the present embodiment described above has a thin line of weakness (401) that connects the opening knob (230) of the lid (200) and the unauthorized opening prevention connection band (400) shown in FIG. ), The cap cannot be opened without breaking one or both of the thin fragile wires (402) connecting the tamper-opening connection band and the peripheral wall (150) of the cap body (100). It was. Moreover, the state of breakage of this thin-walled fragile line was confirmed clearly from the appearance.

It is sectional drawing in the state which opened the lid | cover of the cap with an unauthorized opening prevention function of one Embodiment of this invention. After closing the lid of the cap with the tamper-evident prevention function of FIG. 1 on the cap body, the insertion locking portion connected to the hinge on the rear side of the lid is inserted into the insertion recess on the rear side of the cap body and locked to seal the cap. It is a side view when stopped.

Explanation of symbols

10: Cap with tamper-evident prevention function 100: Cap body 110, 210 ... Top plate 111, 151, 211 ... Inner sealing ring 120 ... Liquid dripping prevention cylinder 121, 151, 221 ... Occlusal ring 130 ... ... Pouring cylinder 140 ... Sealing plate 141 ... Round cut 142 ... Ring thin wall weak wire 143 ... Stand 144 ... Pull ring 150,220 ... Perimeter wall 160 ... Insertion recess 161 ... Locking recess 200 ... Lid 230 ... Opening / closing knob 300 ... Hinge 310 ... Insertion locking part 311 ... Locking convex part 400 ... Connection band 401, 402 for preventing unauthorized opening Thin thin line

Claims (1)

An insertion recess with a locking recess at the lower end is provided below the upper surface of the rear part of the peripheral wall of the cap body to be opened with a pull ring, and a tamper-resistant connection is established via a thin fragile wire on the upper outer peripheral surface of the front part of the peripheral wall of the cap body. Connect the band and connect the other end of this tamper-evident connection band to the center tip position in the left-right direction of the opening knob protruding from the front part of the lid via a thin fragile wire, and the upper end outer circumference of the peripheral wall of the lid via a hinge to the plane connecting the plug engaging portion with an engaging protrusion at the tip, closing the lid to the cap body, which was sealed by inserting a plug retaining portion of the lid insertion recess of the cap body Yes, a cap with a tamper-evident prevention function, wherein the cap body, hinge, lid, and tamper-evident connection band are integrally formed .

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