JP5783360B2 - Container cap - Google Patents

Description

  The present invention relates to a cap attached to the mouth of various containers.

  In various types of container caps, for example, as in the cap described in Japanese Patent Application Laid-Open No. 2003-205954 (Patent Document 1), a pouring member attached to the mouth of the container and a screw cap screwed into the pouring member And a cover member that covers the pouring member and the screw lid.

  Since such a cap has a screw lid attached to the dispensing cylinder portion of the dispensing member, and the screw lid is formed with a small diameter as a whole, it is difficult for consumers to grasp, and as a result, the cap opens and closes. There was a problem that it was not easy.

  Similarly, a cap of a container, such as a cap described in Japanese Patent Application Laid-Open No. 2003-040297 (Patent Document 2), includes a cap body and a cap body that are screwed into a mouth portion of the container. There is a knurled eye formed on the outer peripheral surface of the side wall of the cap main body and a knurled eye fitted to the knurled eye on the inner peripheral surface of the overcap.

  In such a cap, since the overcap is attached to the cap body, the consumer can hold the overcap having a large diameter and rotate it in the opening direction to open the overcap and the cap body at one time. Therefore, compared with the case where the cap body is directly gripped and rotated in the opening direction, the opening torque (torque required to rotate and open the cap body) can be reduced and the cap can be easily opened. There is an advantage that you can.

  Therefore, a cap provided with a small-diameter screw cap such as the cap described in Patent Document 1 is screwed so that it can be opened and closed by holding an overcap having a large diameter such as the cap described in Patent Document 2. A knurl is provided on the outer peripheral surface of the side wall of the cap, and a ridge that meshes with the knurl on the outer peripheral surface of the screw cap is provided on the inner peripheral surface of the inner ring provided on the inner surface of the top wall of the overcap. It is considered that the cap can be easily opened and closed with the worn configuration.

  However, in the case of such a configuration, a gap is formed between the inner ring and the screw cap, particularly with respect to the cap having a tapered screw cap, and the overcap and the screw cap are unstablely attached. It tends to be a thing.

JP 2003-205954 A JP 2003-040297 A

  In view of the above circumstances, an object of the present invention is to provide a cap for a container that can stably attach an overcap to a screw cap.

The present invention relates to a tapered screw cap having a knurl consisting of ridges and ridges extending in the axial direction and alternately adjacent to each other in the circumferential direction on the outer peripheral surface of the side wall, and a ridge portion meshing with the knurl of the screw cap. An inner ring having an inner peripheral surface standing on the inner surface of the top wall, and an overcap that is attached to the screw cap, wherein the screw cap is not formed with the knurling An upper portion, comprising a tamper evidence band below the screw cap, wherein the overcap is formed so that at least a peripheral portion of the tamper evidence band is transparent or translucent, and The screw cap is positioned between the outer peripheral surface of the side wall of the upper portion of the screw cap and the inner peripheral surface of the inner ring of the overcap, and the screw Abutting ribs on the outer peripheral surface of the side wall of the upper portion of the cap is a cap of a container, characterized in that provided in the overcap.

Further, the present invention has an inner plug having a dispensing nozzle portion, a knurl extending in the axial direction and alternately including convex ridges and concave ridges on the outer peripheral surface of the side wall, A taper screw cap attached to the nozzle portion of the inner plug and an inner ring having a convex portion engaging with the knurling of the screw cap on the inner peripheral surface are erected on the inner surface of the top wall and are attached to the screw cap. A cap of the container including an overcap , wherein the screw cap includes an upper portion where the knurling is not formed, and includes a tamper evidence band below the screw cap. are those peripheral portion of at least the tamper evident band is transparent or semi-transparent form, and the outer peripheral surface of the side wall of the upper portion of the screw cap Obaki The container cap is characterized in that the overcap is provided with ribs that are located between the inner peripheral surface of the inner ring and the abutment of the side wall of the upper portion of the screw cap. is there.

  Further, the present invention is the container cap, wherein the rib is continuous with the inner surface of the top wall of the overcap.

  Further, the present invention is the container cap, wherein the rib is continuous with the inner peripheral surface of the inner ring of the overcap.

  According to the present invention, in the container cap, the rib is pressed against the outer peripheral surface of the side wall of the screw cap.

  Further, the present invention is the container cap, wherein the rib has a radial convex portion that engages with a radial concave portion provided on an outer peripheral surface of the side wall of the screw cap.

  Further, according to the present invention, an axial convex portion that is substantially similar to the axial concave portion provided on the outer surface of the top wall of the screw cap and is further provided on the inner surface of the top wall of the overcap. It is the cap of the container characterized by the above-mentioned.

  In this invention, the overcap is attached to the screw cap, and the screw cap can be opened via the overcap. The screw cap is tapered, but the screw cap By providing a rib that contacts the outer peripheral surface of the side wall of the upper portion of the cap, the rib can prevent the overcap from wobbling when the overcap is attached to the screw cap.

  Therefore, according to this invention, the cap of the container which can attach the overcap to the screw cap stably can be provided.

1 is a cross-sectional view showing a container cap according to an embodiment of the present invention in a state where the cap is attached to a container mouth portion. It is the elements on larger scale of FIG. It is a side view of the screw cap alone showing the same. It is sectional drawing which showed other embodiment same as the above. It is sectional drawing which showed other embodiment same as the above.

  An embodiment of the present invention includes an inner plug having a tapered nozzle, a tapered screw cap that is screwed to the inner plug, and an overcap that is attached to the screw cap while covering the inner plug. An example of application to a type container cap will be described with reference to the drawings. Note that the present invention is not limited to the type of cap described here, but can be applied to any type that includes a tapered screw cap and an overcap attached thereto.

  First, the cap 1-1 according to the first embodiment will be described with reference to FIGS.

  As shown in FIG. 1, the cap 1-1 has a tapered nozzle 2a, and is attached to the mouth plug 5a of the container 5 by being plugged into the mouthpiece 2; While the spout of the nozzle 2a is sealed by a seal ring 3j erected on the inner surface of the top wall 3i, the taper screw cap 3 that is attached by being screwed to the nozzle 2a and attached to the nozzle 2a, and the inner surface of the top wall 4a. And an overcap 4 that is mounted so that the screw cap 3 is positioned in the inner ring 4b while covering the inner plug 2 and the screw cap 3 from above. It is comprised by the member of 3 pieces.

  In the cap 1-1, the screw cap 3 has a knurl 3d formed of a plurality of ridges 3b and ridges 3c extending in the axial direction on the outer circumferential surface of the side wall and alternately adjacent in the circumferential direction. The overcap 4 extends in the axial direction on the inner peripheral surface of the inner ring 4b, and is arranged at intervals in the circumferential direction, and has a plurality of protrusions that mesh with the knurled 3d of the screw cap 3. Article 4d is included. Here, in FIG. 1, the broken line of the protruding line 4d portion indicates the overlapping portion of the protruding line 4d to the knurl 3d as a virtual line.

  As described above, in the cap 1-1, the screw cap 3 has the knurl 3d, and the overcap 4 has the protruding ridge 4d that meshes with the knurl 3d, whereby the protruding ridge 4d of the overcap 4 and the screw cap 3 can be opened by rotating the screw cap 3 in the opening direction via the overcap 4 having a diameter larger than that of the knurled 3d (projection 3b). Compared to the case where the small-diameter screw cap 3 is opened by directly rotating, the opening torque (torque required for rotating the screw cap 3 in the opening direction) is reduced, and the screw cap is reduced. 3 can be easily opened.

  It should be noted that the protruding portion 4d of the overcap 4 is fitted into the knurled 3d (concave 3c) of the screw cap 3 and is engaged with each other, and the contact portion between the screw cap 3 and the overcap 4 is brought into pressure contact. As a result, the screw cap 3 is held in the inner ring 4 b of the overcap 4.

  In the cap 1-1, the screw cap 3 has the knurled 3d on the outer peripheral surface 3a of the side wall as described above, but the knurled 3d is formed on the outer peripheral surface 3aa of the upper portion 3e reaching the tip 3h. However, the outer peripheral surface 3aa of the side wall of the upper portion 3e forms a flat peripheral surface (specifically, a flat tapered peripheral surface), and the knurled 3d is formed on the cap 1-1. The overcap 4 is provided with ribs 4e-1 that come into contact with the outer peripheral surface 3aa of the side wall of the upper portion 3e that is not formed.

  The rib 4 e-1 is provided between the outer peripheral surface 3 aa of the side wall of the upper portion 3 e of the screw cap 3 and the inner peripheral surface of the inner ring 4 b of the overcap 4. The portion 3e comes into contact with the outer peripheral surface 3aa of the side wall from the outside.

  Thereby, the cap 1-1 can regulate the movement of the screw cap 3 by the rib 4e-1 when the overcap 4 is attached to the screw cap 3. The overcap 4 can be stably attached.

  Here, as described above, in the cap 1-1, the knurled 3d is not formed in the upper portion 3e of the tapered screw cap 3, and the inner ring 4b provided in the overcap 4 has a straight cylindrical shape. The gap G is formed between the outer peripheral surface 3aa of the outer wall of the upper portion 3e of the screw cap 3 and the inner peripheral surface of the inner ring 4b of the overcap 4. By providing the rib 4e-1, the movement of the overcap 4, that is, the movement in the radial direction can be restricted, and the wobbling of the overcap 4 can be prevented.

  The rib 4e-1 is specifically provided so as to be continuous with the inner surface of the top wall 4a of the overcap 4 and to hang from the inner surface, and is not shown as a whole. However, it has an annular shape that circulates along the outer peripheral surface 3aa of the side wall of the upper portion 3e of the screw cap 3. The shape or the like of the rib 4e-1 may be appropriately changed as long as the rib 4e-1 is in contact with the outer peripheral surface 3aa of the side wall of the upper portion 3e of the screw cap 3. It may be composed of a plurality of ribs arranged at appropriate intervals in the direction.

  Further, in the cap 1-1, the rib 4e-1 includes a radial convex portion 4f protruding radially inward at a lower portion of the contact surface with the outer peripheral surface 3aa of the side wall of the upper portion 3e of the screw cap 3. Further, when the overcap 4 is attached to the screw cap 3 on the outer peripheral surface 3aa of the upper portion 3e of the screw cap 3, the radial protrusion 4f of the rib 4e-1 is fitted. A radial recess 3m is provided. Thereby, not only the cap 1-1 is restricted from moving in the radial direction of the screw cap 3 by the rib 4e-1, but also the radial convex portion 4f of the rib 4e-1 is formed by the screw cap 3. By engaging with the radial recess 3m, the movement of the screw cap 3 in the axial direction (specifically, the direction in which the screw cap 3 comes out of the overcap 4) can be restricted. In addition, since this radial direction convex part 4f is provided in the rib 4e-1, when the overcap 4 is attached to the screw cap 3, the rib 4e-1 is once deformed in the diameter increasing direction. However, the rib 4e-1 is provided to be separated from the inner ring 4b in the radial direction by the separation portion S, and distortion due to deformation is not easily transmitted to the inner ring 4b.

  Further, in the cap 1-1, a boss-shaped (columnar) convex portion 4g projecting from the inner surface is provided at the central portion of the top wall 4a of the overcap 4, and a screw cap is provided. 3 is provided with an axial recess 3k that is substantially similar to the axial protrusion 4g of the overcap 4 and into which it is fitted. As a result, the cap 1-1 can regulate the movement of the screw cap 3 in the radial direction also from the inside. By providing the cap 1-1 together with the rib 4e-1, the overcap 4 is provided from both the inside and outside. Movement of the overcap 4 can be regulated, and the attachment of the overcap 4 to the screw cap 3 can be made more stable. In addition, if the axial direction convex part 4g has the function mentioned above, the shape is not limited to a column shape, For example, trapezoid shape etc. may be sufficient.

  The cap 1-1 has a slight gap formed between the axial convex portion 4g and the axial concave portion 3k in a state where the axial convex portion 4g is fitted in the axial concave portion 3k. By providing in this way, when the overcap 4 tries to move in the radial direction, both come into contact with each other, and the movement in the radial direction is strongly restricted.

  The cap 1-1 has a tamper evident band 3g in which the screw cap 3 is connected to the lower part of the main body via a bridge 3f, and the bridge 3f is broken by the rotation of the screw cap 3 in the opening direction. The tamper evident band 3g is formed transparent or semi-transparent so that the bridge 3f can be confirmed to be broken. In addition to the feel at the time of opening and the breaking sound of the bridge 3f, it can also be confirmed by visual recognition.

  Next, the cap 1-2 according to the second embodiment will be described with reference to FIG. In addition, about the same structure as 1st Embodiment, the same drawing code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 4, the cap 1-2 is provided with a rib 4e-2 as a rib that abuts on the outer peripheral surface 3aa of the side wall of the upper portion 3e of the screw cap 3, that is, this cap. 1-2 can also regulate the radial movement of the screw cap 3 from the outside. In FIG. 4, the vertical broken line in the inner ring 4 b portion indicates the boundary between the inner ring 4 b and the protrusion 4 d as a virtual line.

  Specifically, the rib 4e-2 is thickened at the top wall 4a of the overcap 4 other than the abutting portion with the top wall 3i of the screw cap 3, and the inner ring 4b It is provided continuously with the thick portion 4h formed on the peripheral side, and has a contact surface that contacts the outer peripheral surface 3aa of the side wall of the upper portion 3e of the screw cap 3.

  Further, the rib 4e-2 does not have a radial convex portion like the radial convex portion 4f of the rib 4e-1, and is pressed against the outer peripheral surface 3aa of the upper portion 3e of the screw cap. The cap 1-2 can also regulate the axial movement of the screw cap 3. In this case, if the outer peripheral surface 3aa of the upper portion 3e of the screw cap is not a tapered peripheral surface but a straight cylindrical peripheral surface, it is difficult for sliding to occur between the contact surface and the contact surface.

  In addition, although this cap 1-2 has shown the example which is not provided with the thing equivalent to the axial direction convex part 4g in the cap 1-1, and the axial direction recessed part 3k, it is axially convex like the cap 1-1. It can have the structure of the part 4g and the axial direction recessed part 3k collectively. Further, the top wall 4a of the overcap 4 may have a structure in which only the inner peripheral side of the inner ring 4b is reinforced thickly.

  Finally, the cap 1-3 according to the third embodiment will be described with reference to FIG. In the description of this embodiment, the same components as those in the first embodiment and the second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 5, the cap 1-3 is provided with a rib 4e-3 as a rib that comes into contact with the outer peripheral surface 3aa of the side wall of the upper portion 3e of the screw cap 3, that is, the cap 1 -3 is also capable of restricting the radial movement of the screw cap 3 from the outside. In FIG. 5, the broken line in the vertical direction of the inner ring 4b portion indicates the boundary between the inner ring 4b, the protrusion 4d and the rib 4e-3 as a virtual line, and the horizontal direction of the thick portion 4h portion. The broken line indicates the boundary between the thick portion 4h and the rib 4e-3 as a virtual line.

  Specifically, the rib 4e-3 is provided continuously with the protruding strip portion 4d provided on the inner peripheral surface 4c of the inner ring 4b, and the screw cap 3 is provided radially inward from the protruding strip portion 4d. It extends to the outer peripheral surface 3aa of the side wall of the upper portion 3e, and the axial contact area of the contact portion with the outer peripheral surface 3aa can be further increased. .

1-1 to 1-3: Cap 2: Inner plug 2a: Nozzle 3: Screw cap 3a: Outer peripheral surface (with knurling) 3aa: Outer peripheral surface (without knurling)
3b: Convex 3c: Concave 3d: Knurl 3e: Upper part 3f: Bridge 3g: Tamper evident band 3h: Tip 3i: Top wall 3j: Seal ring 3k: Axial concavity 3m: Radial concavity 4: Overcap 4a : Top wall 4b: Inner ring 4d: Projection strip 4e-1 to 4e-3: Rib 4f: Radial projection 4g: Axial projection 4h: Thick part 5: Container 5a: Container mouth G: Gap S : Spacing part

Claims (7)

A tapered screw cap having a knurl consisting of ridges and recesses alternately extending in the axial direction and alternately adjacent in the circumferential direction on the outer peripheral surface of the side wall, and an inner peripheral surface of the ridge portion meshing with the knurling of the screw cap An inner ring having an overcap that is erected on the inner surface of the top wall and is crowned on the screw cap,
The screw cap includes an upper portion where the knurling is not formed,
A tamper evident band is provided below the screw cap,
The overcap is formed so that at least a peripheral portion of the tamper evidence band is transparent or translucent,
A rib that is located between the outer peripheral surface of the side wall of the upper portion of the screw cap and the inner peripheral surface of the inner ring of the overcap, and that abuts against the outer peripheral surface of the side wall of the upper portion of the screw cap. A cap for a container, which is provided on the cap. An inner plug having a dispensing nozzle portion, and a knurling that extends in the axial direction and is composed of convex and concave stripes alternately adjacent to each other in the circumferential direction are provided on the outer peripheral surface of the side wall. A taper screw cap to be mounted, and an inner cap having an inner ring having a ridge portion engaging with a knurling of the screw cap on an inner peripheral surface thereof, and an overcap to be crowned on the screw cap A container cap,
The screw cap includes an upper portion where the knurling is not formed,
A tamper evident band is provided below the screw cap,
The overcap is formed so that at least a peripheral portion of the tamper evidence band is transparent or translucent,
A rib that is located between the outer peripheral surface of the side wall of the upper portion of the screw cap and the inner peripheral surface of the inner ring of the overcap, and that abuts against the outer peripheral surface of the side wall of the upper portion of the screw cap. A cap for a container, which is provided on the cap.   3. The container cap according to claim 1, wherein the rib is continuous with the inner surface of the top wall of the overcap.   The container cap according to any one of claims 1 to 3, wherein the rib is continuous with an inner peripheral surface of an inner ring of the overcap.   The container cap according to any one of claims 1 to 4, wherein the rib is pressed against an outer peripheral surface of a side wall of the screw cap.   The container according to any one of claims 1 to 5, wherein the rib has a radial convex portion that engages with a radial concave portion provided on an outer peripheral surface of a side wall of the screw cap. cap.   An axial convex portion that is substantially similar to the axial concave portion provided on the outer surface of the top wall of the screw cap and that fits into the axial concave portion is further provided on the inner surface of the top cap. The container cap according to any one of claims 1 to 6.

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