JP2017109789A - container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container in which a content is sufficiently enlarged when viewed from above in an unopened state and thus can be easily observed, and a lid is not easily crushed when a force is applied from above and/or a side.SOLUTION: A container 1 comprises: a container body 10 formed in a bottomed cylindrical shape having an opening at its upper end, and having a flange part 18 projecting outward from an opening edge part in a plan view; and a synthetic resin lid body 12 attached to the upper end side of the container body 10. The lid body 12 comprises a flat plate-like upper face part 20, a cylindrical side face part 22 suspended from an outer peripheral edge part of the upper face part 20, and a fitting part 24 provided on a lower end side of the side face part 22 and fitted to the flange part 18. A Fresnel lens having a magnification of 1.05 times or more and less than 2.0 times is formed on the upper face part 20. A plurality of projections 26 extending from the upper face part 20 to the fitting part 24 are formed in the side face part 22.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a container.

  As containers for storing Western confectionery such as cakes and foods such as fruits, containers in which the opening formed at the upper end of the container body is closed with a transparent lid made of synthetic resin are widely used. In this container, since the lid is transparent, the contents accommodated in the container can be observed from above in an unopened state.

  However, even if the lid is transparent, it may be difficult to confirm the type or state when the contents are small. Therefore, a container in which a Fresnel lens is formed on the upper surface of the lid has been proposed in order to make it easy to observe the contents (Patent Document 1).

Japanese Utility Model Publication No. 61-153758

  In the container of Patent Document 1, since the Fresnel lens is formed on the upper surface of the lid, the contents are enlarged when the contents are viewed from above in an unopened state. However, in the container, since the distance between the Fresnel lens of the lid and the contents is short, the contents are not enlarged so much that it is difficult to obtain a sufficient effect. In order to further expand the contents, it is conceivable to increase the distance between the Fresnel lens on the upper surface and the contents by increasing the height of the lid. However, when the lid is raised, the lid tends to collapse when a force is applied from above such as when stacking containers, and when the force is applied from the side such as when the container is held It becomes easy.

  The present invention provides a container in which the contents are sufficiently enlarged when viewed from above in an unopened state and can be easily observed, and the lid is not easily crushed when force is applied from above and / or from the side. The purpose is to do.

The present invention has the following configuration.
[1] A container main body having a bottomed cylindrical shape with an opening at the upper end and a flange portion projecting outward from the opening edge in a plan view; and a synthetic resin lid attached to the upper end side of the container main body. The lid body is provided on a flat top surface portion, a cylindrical side surface portion hanging from an outer peripheral edge portion of the top surface portion, and a lower end side of the side surface portion, and the flange A Fresnel lens having a magnification of 1.05 times or more and less than 2.0 times is formed on the upper surface portion, and the fitting portion is formed on the side surface portion from the upper surface portion. A container in which a plurality of ridges extending up to are formed.
[2] The container according to [1], wherein a thickness a of the protruding portion is thicker than a thickness b of the side portion where the protruding portion is not present.
[3] The container according to [2], wherein a ratio a / b of the thickness a to the thickness b is 1.05 to 5.0.

  When the container of the present invention is viewed from above in an unopened state, the contents are sufficiently enlarged and can be easily observed, and the lid is not easily crushed when a force is applied from above and / or from the side.

It is the front view which showed an example of the container of this invention. It is the front view which showed the container main body and lid body of the container of FIG. 1 separately. It is a top view of the cover in the container of FIG. It is AA sectional drawing of the container of FIG. It is BB sectional drawing of the cover body of FIG. It is sectional drawing which showed the cover body of the other example of the container of this invention. It is sectional drawing which showed the cover body of the other example of the container of this invention.

The container of the present invention is a container that can accommodate, for example, a pastry such as a cake or a food such as a fruit as the contents, and can observe the contents from above in an unopened state.
The container of the present invention includes a container body and a lid.
The container body has a bottomed cylindrical shape, has an opening formed at the upper end, and includes a flange portion projecting outward from the opening edge in a plan view.

The lid is made of synthetic resin, and is provided on the flat upper surface portion, the cylindrical side surface portion suspended from the outer peripheral edge portion of the upper surface portion, and the lower end side of the side surface portion, and is fitted to the flange portion of the container body. And a mating portion. A Fresnel lens having a magnification of 1.05 times or more and less than 2.0 times is formed on the upper surface portion. In addition, a plurality of protrusions extending from the upper surface portion to the fitting portion are formed on the side surface portion.
The contents can be sealed by covering the upper end side of the container body with the contents stored in the container body and fitting the fitting portion of the lid body with the flange portion of the container body. . Moreover, in this state, the contents accommodated in the container body can be observed through the upper surface portion where the Fresnel lens is formed.

Hereinafter, based on FIGS. 1-5, an example of the container of this invention is shown and it demonstrates in detail.
The container 1 of the present embodiment includes a container body 10 and a lid body 12.

(Container body)
As shown in FIGS. 1 and 2, the container body 10 includes a disk-shaped bottom portion 14, a cylindrical side wall portion 16 rising from the outer peripheral edge portion of the bottom portion 14, and an opening edge portion 16 a at the upper end of the side wall portion 16. And a flange portion 18 projecting outward in a plan view. Thus, the container main body 10 is a bottomed cylindrical shape, and the opening 10a is formed in the upper end. The flange portion 18 is provided over the entire circumference in the circumferential direction of the opening edge portion 16 a in the side wall portion 16.

The container main body in the container of the present invention is not limited to the embodiment like the container main body 10 as long as the flange portion is provided at the opening edge of the upper end that can accommodate the contents. For example, the container main body 10 has a bottomed cylindrical shape, but may be a bottomed square cylindrical container main body provided with a bottom portion having a square shape in plan view and a side wall portion having a square tube shape.
Moreover, in the container main body 10 of this example, the side wall part 16 is inclined and provided so as to spread outward in a plan view as it goes upward from the bottom part 14 side. That is, the side wall 16 of the container body 10 has a cylindrical shape with a narrowed bottom side. In the present invention, the container main body may be such that the side wall of the container main body rises vertically from the outer peripheral edge of the bottom.

The size of the container body is not particularly limited, and can be appropriately set according to the type of contents, the internal volume, and the like.
The material for forming the container body is not particularly limited, and examples thereof include synthetic resins (polystyrene, polyethylene terephthalate, polyvinyl chloride, polyethylene naphthalate, polypropylene, and the like), paper, and the like.
The transparency of the container body may be transparent or opaque.

  The material of the container body may be a single component, or may be a multiple component or a laminated structure. Here, the plural components refer to a mixture of a resin modifier represented by a filler, an antistatic agent, an antifogging agent, and the like and a synthetic resin as a main component. Moreover, a laminated structure means what comprised the other component in multilayer with printing ink or the laminate with respect to the synthetic resin used as a main component. The material of the container body is preferably one that satisfies the barrier functionality, heat resistance, cold resistance, anti-fogging property, etc. as a storage container, and realizes a shape imparted with a design property that promotes purchase intention.

(Lid)
As shown in FIGS. 1 to 5, the lid body 12 is provided on a flat plate-shaped upper surface portion 20, a cylindrical side surface portion 22 hanging from the outer peripheral edge of the upper surface portion 20, and a lower end side of the side surface portion 22. And a fitting portion 24. The upper surface portion 20 is a flat plate-like portion that closes the upper end of the side surface portion 22. The upper surface portion 20 is a Fresnel lens having a magnification of 1.05 times or more and less than 2.0 times. Eight ridges 26 extending from the upper surface part 20 to the fitting part 24 are formed on the side part 22.

In the present invention, since the Fresnel lens is formed on the upper surface portion of the lid, the contents appear to be enlarged when viewed from above through the upper surface portion in an unopened state. If a Fresnel lens is used for the upper surface portion, a sufficient lens function can be obtained without making the upper surface portion excessively thick.
In this example, the upper surface portion 20 itself is a Fresnel lens, but in the present invention, a Fresnel lens sheet is bonded to a flat plate portion having no lens function, so that a Fresnel lens is formed on the upper surface portion. May be.

The magnification of the Fresnel lens formed on the upper surface is 1.05 times or more and less than 2.0 times. Thereby, the content seen through the upper surface can be sufficiently enlarged while reducing the uncomfortable feeling caused by the shift between the image of the content seen through the upper surface of the lid and the image of the content seen through the side. Therefore, the contents can be easily observed from above without feeling uncomfortable in an unopened state.
The magnification of the Fresnel lens forming the upper surface portion is preferably 1.1 to 1.8 times, and preferably 1.2 to 1.8 times from the viewpoint of easily observing the contents from above in an unopened state without any discomfort. 1.5 times is more preferable.

In the present invention, since the upper surface portion is flat, the upper surface of the lid is flat. Therefore, the container of the present invention has high stability when stacked at the time of transportation or display.
The planar view shape of the upper surface portion 20 in this example is a circular shape. In addition, the planar view shape of the upper surface part of a cover body is not limited to circular shape, For example, polygonal shape may be sufficient. When the shape of the upper surface portion is a polygonal shape, a regular hexagonal shape or a regular octagonal shape is better than a square shape, etc. A shape closer to a circle such as a shape or a regular dodecagon is preferred.

In the lid body 12 of this example, the side surface portion 22 is inclined so as to spread outward in plan view as it goes from the upper surface portion 20 side to the fitting portion 24 side. That is, the side surface portion 22 of the lid body 12 has a cylindrical shape whose upper side is narrowed. In addition, in this invention, the cover body by which the side part is hung perpendicularly | vertically from the outer-periphery edge part of an upper surface part may be sufficient.
In terms of excellent rigidity in the vertical direction of the lid body, even when the side surface portion is inclined like the lid body 12 of this example, it is preferable that the side surface portion is as perpendicular as possible to the upper surface portion. Further, the closer the angle of the side surface portion to the upper surface portion is, the more difficult it is to see the content from the side surface portion when observing the content from above through the upper surface portion. Therefore, the uncomfortable feeling due to the deviation between the image of the content seen through the upper surface portion of the lid and the image of the content seen through the side surface portion is reduced.

  The distance between the upper end of the container body and the lower surface (inner surface) of the upper surface portion of the lid body in a state where the lid body is attached to the container body is preferably 0.5 to 100 mm, and more preferably 5 to 50 mm. If the distance is equal to or greater than the lower limit value, the content is easily enlarged when observing the content from above through the upper surface in an unopened state, and the observation becomes easy. If the distance is less than or equal to the upper limit value, the vertical rigidity of the lid body can be sufficiently obtained.

  In the lid body 12, eight protrusions 26 are formed on the side surface portion 22 at intervals in the circumferential direction. Thus, the rigidity of a side part increases because a several protrusion part is formed in the side part of a cover body. Therefore, in the container of the present invention, when a force is applied from above, such as when a plurality of containers are stacked, or when a force is applied from the side, such as when the side of the lid is gripped, the lid is crushed. Hateful. Moreover, the designability is also improved by forming a plurality of protrusions on the side surface.

  In this example, as shown in FIG. 3, the eight ridge portions 26 are formed at equal intervals in the circumferential direction of the side surface portion 22 in plan view. As shown in FIGS. 2 and 4, each protruding portion 26 has a curved shape in which a cross section perpendicular to the length direction protrudes outward, and is formed in a streak shape from the upper surface portion 20 to the fitting portion 24. ing. That is, the ridge portion 26 has a shape in which a groove is formed on the inner surface side of the ridge extending from the upper surface portion 20 to the fitting portion 24.

  In the present invention, like the ridge 26, the ridge is preferably formed so as to protrude outward in a plan view. It is formed so that the protruding part protrudes outward, so it has excellent tactile sensation when holding the side part of the lid, and it can hold the lid more stably with less slipping of the hand. It is easy to apply force to the lid.

The curved shape of the cross section perpendicular to the length direction of the ridge portion 26 of the lid body 12 is an arc shape, but the curved shape is not limited to the arc shape, and may be, for example, a U shape or a V shape. May be.
Moreover, although the protrusion part 26 is formed so that it may protrude outside in planar view, in this invention, a protrusion part may be formed so that it may protrude inside in planar view.

  In the lid 12, the thickness a (FIG. 4) of the ridge 26 is thicker than the thickness b (FIG. 4) of the side portion 22 where the ridge 26 is not present. Thus, in this invention, it is preferable that the thickness a of the protrusion part of a cover body is thicker than the thickness b of the part which does not have a protrusion part in a side part. Thus, virginity is obtained, and whether or not the container has been opened can be determined based on whether or not the side surface portion of the lid is damaged.

The mechanism for obtaining virginity is considered as follows.
In the container of the present invention, the flange portion of the container body and the fitting portion of the lid body are fitted in an unopened state. When releasing such a fitting and opening, normally, it grasps so that the side part of a lid may be inserted, and pulls up a lid, applying force so that a side part may be pushed inside. At this time, while the lid portion is suppressed from being crushed by the ridge portion, the force for pushing the side portion inward is concentrated on the thin portion where there is no ridge portion in the side portion. Thereby, it becomes easy to produce breakage, such as a crack, in the thin part which does not have the protrusion part of a side part.

The ratio a / b of the thickness a of the ridge to the thickness b of the portion having no ridge in the side surface is preferably 1.05 to 5.0, more preferably 1.1 to 3.0. If ratio a / b is more than a lower limit, the side part of a lid will be easy to break at the time of opening, and it will become easy to obtain virginity. Further, the lid body can be sufficiently rigid, and the lid body is not easily crushed when the containers are stacked. If the ratio a / b is equal to or less than the upper limit value, the uncomfortable feeling at the outer peripheral edge of the upper surface when the contents are observed from above in an unopened state is reduced.
In addition, the thickness a of the protruding portion means an average value of the thickness in the width direction of the protruding portion. Moreover, the thickness b of the part which does not have the protrusion part in a side part means the average value of the thickness in the width direction of the part which does not have a protrusion part in a side part.

  The thickness a of the ridge is preferably 0.1 to 7.5 mm, and more preferably 0.2 to 2.4 mm. If the thickness a is equal to or greater than the lower limit, the lid body can be sufficiently rigid, and the lid body is less likely to collapse when the containers are stacked. When the thickness a is equal to or less than the upper limit value, the uncomfortable feeling at the outer peripheral edge of the upper surface when observing the contents from above in an unopened state is reduced, and the moldability such as mold transfer and demoldability is excellent.

  0.1-1.5 mm is preferable and, as for the thickness b of the part which does not have the protrusion part in a side part, 0.2-0.8 mm is more preferable. If the thickness b is equal to or greater than the lower limit value, the lid body is sufficiently rigid, and the lid body is not easily crushed when the containers are stacked. If thickness b is below an upper limit, the side part of a lid will be easy to break at the time of opening, and virginity will become easy to be obtained.

The ratio c / d of the total width c of the ridges to the total width d of the portions having no ridges in the side surface is preferably 0.01 to 0.8, more preferably 0.05 to 0.5. preferable. If the ratio c / d is equal to or greater than the lower limit, the lid body can be sufficiently rigid, and the lid body will not easily collapse when the containers are stacked. If ratio c / d is below an upper limit, the side part of a cover body will be easy to be damaged at the time of opening, and virgin property will become easy to be obtained. Further, if the ratio a / b is within the above range and the ratio c / d is further within the above range, the virgin property can be more easily obtained.
In addition, the width | variety of a protrusion part means the width | variety of a protrusion part when the side part in a cover body is viewed from the front from the outer side. The width of the portion having no protrusion on the side surface means the width of the portion without the protrusion when the side surface of the lid is viewed from the front.

The height e (FIG. 4) of the protrusion is preferably 0.1 to 5.0 mm, and more preferably 1.0 to 4.0 mm. If the height of the ridge is equal to or greater than the lower limit, the lid body is sufficiently rigid, and the lid body is not easily crushed when the containers are stacked, and sufficient grip stability is easily obtained. If the height of the ridge is equal to or less than the upper limit value, the discomfort at the outer peripheral edge of the upper surface when observing the contents from above in an unopened state is reduced, and the discomfort during gripping is reduced.
The height of the ridge means the distance between the most protruding portion of the ridge and the base end of the ridge.

  The number of ridges formed on the side surface of the lid body varies depending on the width of the ridge, but is preferably 3 to 64, more preferably 6 to 32. If the number of ridges is equal to or greater than the lower limit value, the lid body is sufficiently rigid, and the lid body is less likely to collapse when the containers are stacked. If the number of ridges is less than or equal to the upper limit value, it is easy to provide design properties and excellent moldability such as mold transfer and mold release properties. Moreover, if the number of protrusions is within the above range, when the thickness a of the protrusions is made thicker than the thickness b of the part where there are no protrusions in the side surface, the position of the side of the lid is grasped. Regardless, it becomes easier to exhibit virginity.

In the present invention, it is preferable that the angle θ (FIG. 5) formed by the upper surface portion and the protrusion in the lid body is as close to a right angle as possible from the viewpoint of the rigidity in the vertical direction of the lid body. The angle θ is preferably 90 to 170 °, and more preferably 90 to 120 °. Even if the angle θ is a wide angle, the rigidity can be compensated for by reducing the height of the lid.
In addition, the angle θ formed by the upper surface portion and the ridge portion means an angle formed by the upper surface of the upper surface portion and the length direction of the center portion in the width direction on the outer surface of the ridge portion.

  From the point which is excellent in the rigidity of the lid body in the vertical direction, it is preferable that the ridge portion in the lid body extends in the vertical direction when the side surface portion is viewed from the outside. In addition, if it is a range which does not impair the effect of this invention, when a side part is seen from the outer side, a protrusion part may incline in the circumferential direction with respect to the up-down direction.

In the present invention, it is preferable that the plurality of protrusions formed on the side surface portion of the lid body are arranged at equal intervals in the circumferential direction of the side surface portion in plan view. Thereby, the rigidity in the vertical direction of the lid body can be sufficiently obtained, and the lid body is less likely to be crushed when the containers are stacked. In addition, when the thickness a of the ridge is made thicker than the thickness b of the side portion where there is no ridge, it becomes easy to exhibit virginity regardless of the position where the side of the lid is grasped. .
In addition, if it is a range which does not impair the effect of this invention, the some protrusion part formed in the side part of a cover body does not need to be arrange | positioned at equal intervals in the circumferential direction of a side part by planar view.

  In the container of the present invention, it is preferable that no lens is formed on the side surface portion. Accordingly, it is possible to suppress a sense of incongruity caused by a large shift between the image of the content enlarged on the upper surface portion of the lid and the image of the content enlarged on the side surface portion.

  As shown in FIG. 5, the fitting portion 24 of this example includes a protruding portion 28 that protrudes outward from the lower end of the side surface portion 22 in a plan view, and a cylindrical tube that is suspended from the outer peripheral edge of the protruding portion 28. Part 30. A protruding portion 32 that is curved so that a cross-sectional shape cut in the vertical direction protrudes inward is formed at the lower end of the cylindrical portion 30 over the entire circumference in the circumferential direction. As shown in FIG. 1, when the lid 12 is attached to the container main body 10, the flange portion 18 of the container main body 10 is fitted on the upper side of the protrusion 32 on the inner side of the fitting portion 24. 24 and the flange portion 18 are fitted.

  In addition, as a fitting part of the cover body in the container of this invention, what is necessary is just to employ | adopt a well-known aspect also to an above-described aspect without a restriction | limiting, if a fitting part and a flange part can be detachably fitted. it can. For example, in the fitting part 24, the protrusion part 32 may be a fitting part provided intermittently in the circumferential direction of the cylindrical part 30.

The material forming the lid is not particularly limited as long as the contents contained in the container body can be observed through the upper surface portion, and examples thereof include polystyrene, polyethylene terephthalate, polyvinyl chloride, polyethylene naphthalate, and polypropylene. A transparent resin is mentioned. As a material for forming the lid, only one kind may be used alone, or two or more kinds may be used in combination.
Moreover, as long as the visibility of the contents is not hindered, the lid may be subjected to secondary processing with printing ink or laminate.

(Production method)
The manufacturing method of the container of this invention is not specifically limited, A well-known method can be utilized. For example, the container body and the lid can be manufactured by blow molding, vacuum forming, pressure forming, or the like. For example, the Fresnel lens on the upper surface of the lid is formed by using a molding die in which concentric annular protrusions are formed on the molding surface for molding the upper surface of the lid, and a concentric annular groove is formed on the upper surface during molding. It can manufacture by forming. Moreover, you may manufacture a lid body by affixing the Fresnel lens sheet manufactured separately on the part used as the upper surface part of the molded object shape | molded using the shaping | molding die in which the said protrusion is not formed.
As a method for manufacturing the lid, a method in which a Fresnel lens is integrally formed on the upper surface portion at the time of molding is preferable from the viewpoint that the manufacturing process is small and simple.

As described above, in the container of the present invention, the lid body is covered from above on the opening at the upper end of the container body, and the fitting portion of the lid body is fitted to the flange portion of the container body, so that the contents can be obtained. Can be sealed.
Moreover, in the container of this invention, the Fresnel lens is formed in the upper surface part of a cover body, and the some protrusion which extends from an upper surface part to a fitting part is formed in the side part. By forming the plurality of protrusions on the side surface of the lid, the rigidity is sufficiently increased even if the height of the lid is increased. Therefore, in the container of the present invention, the lid body is not easily crushed even when a plurality of containers are stacked and a force is applied from above, or when a force is applied from the side by grasping the side surface of the lid body. Further, the distance between the contents and the Fresnel lens can be sufficiently secured while ensuring the rigidity of the lid. Thereby, when observing from above in an unopened state, the contents are sufficiently enlarged, and the type and state of the contents can be easily confirmed, so that allergens can be easily avoided.

  Further, in the present invention, the thickness a of the ridge portion is made thicker than the thickness b of the side portion where there is no ridge portion while securing the rigidity by the ridge portion and suppressing the cover from being crushed. And virginity can also be obtained. As a result, it is possible to easily check the opening for mischief or the presence or absence of foreign matter contamination by the state of the side surface. In addition, the container does not require a top seal for obtaining virginity, which reduces manufacturing costs and improves recyclability. Moreover, it can also suppress that the observation of the contents in an unopened state is prevented by the top seal.

The container of the present invention is not limited to the container 1 described above.
For example, the container of the present invention may be a container including the lid body 12 </ b> A illustrated in FIG. 6 instead of the lid body 12. In FIG. 6, the same parts as those in FIG. The lid body 12 </ b> A has an arcuate curved shape in which a cross section perpendicular to the length direction protrudes inward instead of the ridge portion 26, and the ridge portion 26 </ b> A formed in a streak shape from the upper surface portion to the fitting portion is provided. The lid 12 is the same as the lid 12 except that it is formed.
Even in a container having the lid 12A, the distance between the contents and the Fresnel lens on the upper surface can be sufficiently secured while ensuring the rigidity of the lid, so that the contents are sufficiently enlarged and unopened. The contents can be easily observed from above.

Further, the container of the present invention may be a container including the lid 12B illustrated in FIG. In FIG. 7, the same parts as those in FIG. Instead of the ridge portion 26, the lid body 12 </ b> B is formed with a ridge portion 26 </ b> B composed of a crescent-shaped and strip-like protrusion that extends from the flat surface portion to the fitting portion and protrudes outward from the side surface portion 22 in a plan view. The lid 12 is the same as the lid 12 except that it is.
Even in a container including the lid 12B, the distance between the contents and the Fresnel lens on the upper surface can be sufficiently secured while ensuring the rigidity of the lid, so that the contents are sufficiently enlarged and unopened. The contents can be easily observed from above.

  However, since it can be easily formed by blow molding, vacuum forming, pressure forming, or the like, a protrusion having a curved cross section like the protrusion 26 is formed as compared with the lid having the protrusion 26B. The made lid is preferred.

DESCRIPTION OF SYMBOLS 1 Container 10 Container main body 10a Opening 12, 12A, 12B Cover body 18 Flange part 20 Upper surface part 22 Side part 24 Fitting part 26, 26A, 26B Projection part

Claims (3)

An opening is formed at the upper end in the shape of a bottomed cylinder, and includes a container main body provided with a flange portion projecting outward from the opening edge in a plan view, and a synthetic resin lid attached to the upper end side of the container main body. A container,
The lid is provided with a flat upper surface, a cylindrical side surface hanging from the outer peripheral edge of the upper surface, and a fitting portion that is provided on the lower end side of the side surface and engages with the flange. And comprising
A Fresnel lens having a magnification of 1.05 times or more and less than 2.0 times is formed on the upper surface portion.
A container in which a plurality of protrusions extending from the upper surface portion to the fitting portion are formed on the side surface portion.   The container according to claim 1, wherein a thickness a of the protruding portion is thicker than a thickness b of the side portion where the protruding portion is not present.   The container according to claim 2, wherein a ratio a / b of the thickness a to the thickness b is 1.05 to 5.0.

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