JP5693053B2 - Overcap for container - Google Patents

Description

  The present invention relates to an overcap that is attached to the mouth of a sealed container filled with various foods such as liquid foods such as juice and coffee, or semi-solid foods such as yogurt and pudding.

  Conventionally, various foods represented by liquid foods such as juice and coffee or semi-solid foods such as yogurt and pudding (hereinafter referred to as “contents”) are distributed in the market in a state of being stored in containers. ing. These contents are required to secure a sealing property when distributed in the market.

  The container has, for example, an opening that opens upward, and a flange is provided around the opening. The contents are filled from the opening of the container, and then a sealing lid such as a film is placed on the upper surface of the flange to cover the opening. Thereafter, the sealing lid and the flange portion are heat-sealed, whereby the contents are accommodated in the container in a sealed state. Then, the plurality of sealed containers are stacked on each other in the cardboard boxes and are transported together with the cardboard boxes, and as a result, the sealed containers are distributed on the market.

  By the way, in order to reduce the weight and cost of the sealed container, the sealing lid is often formed of the thinnest material possible. For this reason, when the sealed containers are stacked on each other, the thin sealing lid may be damaged, or the heat-sealed portion may be peeled off. Therefore, there is a risk that the sealing performance of the sealed container is impaired before the sealed container reaches the consumer.

  For this reason, in recent years, as shown in Patent Document 1 to Patent Document 3, an overcap is separately attached to the flange portion of the container. 5 (a) and 5 (b) are side views of an overcap in the prior art. In these drawings, the overcap 100 includes a top portion 110, an engaging portion 200, and a side wall portion 120 that connects the top portion 110 and the engaging portion 200. The engaging portion 200 is configured to engage with a flange portion provided in an opening of a container (not shown).

  Therefore, even when the sealed containers are stacked on each other, the sealed lid does not directly contact the bottom of another container. Therefore, breakage of the sealed container in the distribution stage can be prevented. Further, the overcap 100 serves to prevent the sealing lid from being contaminated to ensure the hygienic condition of the sealed container, or to enhance the cosmetics by creating a high-class feeling.

Japanese Patent Publication No. 2004-106918 Japanese Patent Publication No. 2003-104421 Patent No. 4202043

  By the way, when a consumer or the like picks up a sealed container at a store or the like, the sealed container may be accidentally dropped. When the overcap 100 of the sealed container collides with the floor surface or the like, a part of the overcap 100 is deformed to form the recess 130 as shown in FIG. As a result, depending on the collision site and the collision angle with the floor surface or the like, as shown in FIG. 6 which is a perspective view of the overcap shown in FIG. May become a protrusion 131 and protrude downward toward the inside of the overcap 100 to reach the region of the engaging portion 200. In such a case, the protrusion 131 may break through the sealing lid of the container, which may impair the sealing performance of the container.

  The present invention has been made in view of such circumstances, and provides an overcap that does not form a sharp protrusion even when dropped, and thus does not damage the sealing lid of the container. For the purpose.

In order to achieve the above-described object, according to a first aspect of the present invention, an engagement portion that engages with the flange portion of a container provided with a flange portion around an opening, and the flange facing the container In an overcap having a top part having a flat part parallel to the part and a frustoconical side wall part connecting the engaging part and the top part, the side wall part has the top part over the entire circumferential direction. An overcap is provided in which a plurality of arc-shaped grooves extending in parallel to each other are formed, and the lowermost groove is disposed adjacent to the upper surface of the engaging portion .

  That is, in the first invention, since the groove portion is formed in the side wall portion, even when the container is dropped, no sharp protrusions directed downward are formed. Therefore, the sealing lid of the container is not damaged, and the sealing performance of the container can be maintained well.

According to the second invention, the engaging portion that engages with the flange portion of the container provided with the flange portion around the opening portion , and the flat portion that faces the container and is parallel to the flange portion And an overcap having a frustoconical side wall portion connecting the engaging portion and the top portion, the side wall portion includes one cross section extending parallel to the top portion in the entire circumferential direction. A V-shaped groove is formed, and the V-shaped angle is not less than 45 degrees and less than 180 degrees, and the groove is connected to the upper side wall portion of the side wall portion connected to the top portion and the engaging portion. A lower side wall portion, and an intersection line between the upper side wall portion and the lower side wall portion extends parallel to the top portion at a half of the height of the side wall portion. Cap is provided
According to the third invention, the engaging portion that engages with the flange portion of the container provided with the flange portion around the opening portion , and the flat portion that faces the container and is parallel to the flange portion And an overcap having a frustoconical side wall portion connecting the engaging portion and the top portion, the side wall portion includes a plurality of straight lines extending obliquely with respect to the generatrix of the side wall portion. An overcap is provided in which the groove portions are formed at equal intervals in the circumferential direction.

It is a disassembled perspective view of the overcap and container based on 1st embodiment of this invention. (A) It is a side view of the overcap based on 1st embodiment of this invention. (B) It is another side view of the overcap based on 1st embodiment of this invention. (A) It is a side view of the overcap based on 2nd embodiment of this invention. (B) It is another side view of the overcap based on 2nd embodiment of this invention. It is a perspective view of the overcap based on 3rd embodiment of this invention. (A) It is a side view of the overcap in a prior art. (B) It is another side view of the overcap in a prior art. It is the perspective view which looked at the overcap shown by FIG.5 (b) from the lower side.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following drawings, the same members are denoted by the same reference numerals. In order to facilitate understanding, the scales of these drawings are appropriately changed.
FIG. 1 is an exploded perspective view of an overcap and a container according to a first embodiment of the present invention. In FIG. 1, a container 30 and an overcap 10 to be attached to the container 30 are shown. The container 30 is made of resin or paper, and an opening 31 is formed on the top surface. As can be seen from FIG. 1, a flange 33 extending in the circumferential direction toward the outside is formed around the opening 31.

  The container 30 shown in FIG. 1 is already filled with contents, for example, liquid food such as juice and coffee, or semi-solid food such as yogurt and pudding from the opening 31, and the opening 31 is sealed by a sealing lid 32. It is closed. The sealing lid 32 is formed of a film or the like, and the contents are accommodated in the container 30 in a sealed state by heat-sealing the sealing lid 32 with respect to the flange portion 33. As is well known, a straw (not shown) having a sharp tip for breaking through the sealing lid 32 is attached to the side surface of the container 30.

  The overcap 10 shown in FIG. 1 is a cylindrical member made of a resin such as polyethylene, polypropylene, polystyrene, polyester, polyvinyl chloride, polycarbonate, or a composite material thereof. As shown in FIG. 1, the overcap 10 connects the top portion 11 in which the opening 13 is formed, the engagement portion 20 that engages with the flange portion 33 of the container 30, and the top portion 11 and the engagement portion 20. And a frustoconical side wall portion 12.

  As shown in FIG. 1 and FIG. 2 described later, the inner surface of the engaging portion 20 protrudes inward in the circumferential direction. Therefore, the overcap 10 can be easily attached to the container 30 by locking the upper surface of the protruding portion of the engaging portion 20 to the lower surface of the flange portion 33. When the overcap 10 is attached to the container 30, the sealing lid 32 of the container 30 is located in the boundary region between the side wall part 12 and the engaging part 20. For this reason, if a consumer inserts a straw (not shown) in the opening part 13 of the top part 11, the sealing lid | cover 32 will be easily pierced.

  2 (a) and 2 (b) are side views of the overcap according to the first embodiment of the present invention. In these drawings and the following drawings to be described later, the container 30 is omitted for the sake of brevity, but the illustrated overcap 10 is attached to the container 30.

  In the first embodiment shown in FIG. 2A, the side wall portion 12 is formed with a single groove portion 15 extending in the circumferential direction. As can be seen from FIG. 2 (a), the cross section of the groove portion 15 is V-shaped, and is composed of an upper side wall portion 12 a connected to the top portion 11 and a lower side wall portion 12 b connected to the engaging portion 20. . The line of intersection between the upper side wall portion 12a and the lower side wall portion 12b extends in parallel to the top portion 11 at a location approximately half the height of the side wall portion 12. However, the position of the line of intersection is not limited to a location that is approximately half the height of the side wall 12. Further, the angle θ formed by the upper side wall portion 12a and the lower side wall portion 12b is preferably larger than 0 ° and not more than 135 °, more preferably not less than 45 °, and particularly preferably 90 °.

  Here, when the container 30 with the overcap 10 collides with the floor surface or the like due to a consumer error or the like, and a local force is applied to the overcap 10 as shown by the arrow in FIG. think of. In such a case, the groove 15 is bent so that the upper sidewall portion 12a and the lower sidewall portion 12b approach each other. As a result, the angle θ of the groove 15 may be locally reduced and the groove 15 may be folded.

  However, even in such a case, the folding portion of the groove portion 15 only extends locally inward in the radial direction of the overcap 10, and the folding portion of the groove portion 15 extends downward toward the engaging portion 20. It does not extend to. Therefore, in the first embodiment, the sealing lid 32 of the container 30 is not damaged even if the bent portion of the groove 15 is formed as a sharp protrusion. Therefore, even when the container 30 is dropped, the sealing performance of the container 30 can be maintained well.

  3 (a) and 3 (b) are side views of the overcap according to the second embodiment of the present invention. In the second embodiment, the side wall portion 12 is formed with a plurality of circumferentially extending groove portions 15-1 and 15-2 in FIG. It is preferable that the depth of these groove parts 15-1 and 15-2 is 2 mm or more, is smaller than the radius of the top part 11 of the overcap 10, and the width is 2 mm or more. In addition, it is preferable that each width | variety of the groove parts 15-1 and 15-2 is half or less of the height of the side wall part 12 of the overcap 10. FIG. In FIG. 2A, the cross sections of the grooves 15-1 and 15-2 are arc-shaped, but may be V-shaped. Furthermore, it is preferable that the total value of the widths of the grooves is at least half the height of the overcap. 3A, the distance Y between the groove portion 15-2 adjacent to the engaging portion 20 of the overcap 10 and the upper surface of the engaging portion 20 is such that the container 30 has the overcap. The distance X between the side wall part 12 and the peripheral surface of the container 30 in the vicinity of the side wall part 12 when engaged with 10 is preferably about twice or less. The reason is that in such a configuration, even if a part of the side wall portion 12 corresponding to the distance Y is folded inward, the folded portion does not reach the sealing lid 32 of the flange portion 33. . In other words, it is preferable that the lowermost groove portion, for example, the groove portion 15-2 is disposed adjacent to the upper surface of the engaging portion 20.

  In the second embodiment, a case where a local force is applied to the overcap 10 as indicated by an arrow in FIG. In such a case, since the plurality of groove portions 15-1 and 15-2 serve as bellows, the overcap 10 locally shrinks in the height direction. Therefore, sharp projections are not formed on the inner surface of the overcap 10, and as a result, the sealing lid 32 of the container 30 is not damaged. Therefore, similarly in the second embodiment, even when the container 30 is dropped, the sealing performance of the container 30 can be maintained well.

  2A and 3A, the grooves 15, 15-1, and 15-2 are formed over the entire circumferential direction of the overcap 10, but these grooves 15, 15-1, and 15 are formed. -2 may extend only partially in the circumferential direction. Even such a case is included in the scope of the present invention.

  FIG. 4 is a perspective view of an overcap according to the third embodiment of the present invention. In the third embodiment, a plurality of groove portions 15a to 15p extending obliquely with respect to the bus bar of the side wall portion 12 are formed in the circumferential direction at substantially equal intervals. Similar to the embodiment described above, the depth of the groove portions 15a to 15p is preferably 2 mm or more, smaller than the radius of the top portion 11 of the overcap 10, and preferably 2 mm or more in width. Further, the cross sections of the grooves 15a to 15p may be V-shaped.

  In the third embodiment, when a local force is applied to a region between two adjacent groove portions of the overcap 10, for example, the groove portions 15a and 15b, only the region between the groove portions 15a and 15b is present. The deformation of the overcap 10 does not propagate beyond the grooves 15a and 15b. That is, in the third embodiment, since the deformable region is limited by the grooves 15a and 15b, a sharp protrusion having a dimension sufficient to break through the sealing lid 32 is not formed. Accordingly, similarly in the third embodiment, even when the container 30 is dropped, the sealing lid 32 of the container 30 is not damaged, and the sealing performance of the container 30 can be maintained well. It becomes.

DESCRIPTION OF SYMBOLS 10 Overcap 11 Top part 12 Side wall part 12a Upper side wall part 12b Lower side wall part 13 Opening part 15, 15-1, 15-2, 15a-15p Groove part 20 Engagement part 30 Container 31 Opening part 32 Sealing lid 33 Flange part

Claims (3)

An engagement portion that engages with the flange portion of the container having a flange portion around the opening , a top portion that faces the container and has a flat portion parallel to the flange portion, and the engagement In an overcap having a frustoconical side wall connecting the top and the top,
The side wall portion is formed with a plurality of cross-sectional arc-shaped groove portions extending in parallel with the top portion in the entire circumferential direction, and the lowermost groove portion is disposed adjacent to the upper surface of the engaging portion . Overcap. An engagement portion that engages with the flange portion of the container having a flange portion around the opening, a top portion that faces the container and has a flat portion parallel to the flange portion, and the engagement In an overcap having a frustoconical side wall connecting the top and the top,
  In the side wall portion, a groove portion having a V-shaped cross section extending in parallel to the top portion is formed over the entire circumferential direction,
  The V-shaped angle is 45 degrees or more and less than 180 degrees,
  The groove part is composed of an upper side wall part of the side wall part connected to the top part and a lower side wall part connected to the engagement part,
  An overcap, wherein the line of intersection between the upper and lower sidewall portions extends parallel to the top at half the height of the sidewall portion. An engagement portion that engages with the flange portion of the container having a flange portion around the opening , a top portion that faces the container and has a flat portion parallel to the flange portion, and the engagement In an overcap having a frustoconical side wall connecting the top and the top,
The overcap in which the said side wall part is formed with the several linear groove part which inclines with respect to the bus-line of this side wall part at equal intervals in the circumferential direction.

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