JP2004136959A - Closed-type stacking container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a closed-type stacking container, which can be placed or stacked in a stable manner without having a projected string-patterned bottom, does not give a strong touch to a holding hand when a user opens the lid of the container with one hand while holding it with the other hand, and makes the user possible to scoop off soupe or paste remaining in the container completely. <P>SOLUTION: The container comprises a body and the lid, which are made of plastic and shaped to fit together closely. A curbed bottom wall with a raised center is formed on the body, on the periphery of which a circular projected rim bottom having a rounded section, which is a rounded continuous portion between a sloped side wall and the curbed bottom wall, is formed as a substitute for a string-patterned bottom. A stepped recession to be fitted into the circular projected rim bottom and a lid wall projected surface to be fitted into the curbed bottom wall are formed on the lid. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic closed container comprising a body and a lid which can be stacked when food is packed or sold or stored.
[0002]
[Prior art]
Plastic closed containers are frequently used for selling processed foods, and are also commonly used at home for storing cooked foods. From this use, the structure is sealed as much as possible to prevent food juice leakage and quality maintenance.Also, a thread bottom is provided on the bottom of the body so that it can be stably placed and stacked anywhere, and the thread bottom is provided on the top of the lid. Is formed to form a wide recess or an annular groove.
[0003]
In the closed structure, basically, the connection between the body and the lid is made by elastic connection between the ridge and the groove. Further, a form used for sale may be provided with a lid opening prevention device that holds a locked state until the consumer opens it so that the lid cannot be opened illegally in the middle. As an example thereof, the one proposed in Japanese Patent Application No. 7-113958 (Japanese Patent Application Laid-Open No. 7-113958) of the present applicant can be mentioned.
[0004]
[Problems to be solved by the invention]
According to the conventional closed-type stacking container as described above, a stable stacking can be performed because the thread bottom is hung in a wide recess or an annular groove, and the yarn can be stably placed on the table, but the lid is opened. Sometimes, since it is necessary to release the elastic connection between the ridge and the groove for water tightness, while holding the body and the lid at the same time with one hand, while lifting the lid from one end with the other hand, sometimes, Since the thread bottom hits the pinching hand strongly, it will be stimulated, if not painfully, against comfort. In particular, when the device is provided with a cover opening prevention device, the thread bottom hits strongly due to a particularly strong relationship for the unlocking operation.
[0005]
Also, as can be seen in many containers, the bottom was flat, but especially when putting foods such as soups and pastes, turn the spoon evenly on a wide bottom when you want to use a spoon to wash the remaining residue. It was necessary to move, and even then the gathering was poor, so it was difficult to take out the last part.
[0006]
The present invention has been made in view of the above circumstances, and is a container that can be stably placed or stacked without a protruding thread bottom, and is used when a user holds the lid with one hand while opening the lid with the other hand. An object of the present invention is to provide a closed stackable container that does not apply strong irritation to a handle and that can completely scoop up the remainder of soups and pastes.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention comprises a body and a lid molded from plastic so as to be closely fitted to each other, and by forming a curved upper bottom wall having a high center portion on the body, the periphery thereof is formed. In addition, an annular convex bottom having a round cross-section in which the inclined side wall and the curved upper bottom wall are continuous with the radius is provided instead of the thread bottom, and the lid is
{Circle around (1)} The recess which falls due to the step is formed so that the annular convex bottom of the body fits therein.
{Circle around (2)} A convex wall portion of the lid wall into which the curved upper bottom wall of the body fits (Claim 2);
An object of the present invention is to provide a closed stackable container according to the above (1) or (2).
[0008]
[Action]
According to the above configuration, an annular convex bottom is formed on the body, and when placed on a table or the like, this serves as a thread bottom, stabilizing, and of course, the inconvenience of close contact with the table surface Absent. As for the stacking, the annular convex bottom or the curved upper bottom wall of the body fits into the concave portion of the lid of the lower container or the convex portion of the lid wall, so that the stack is stably held without shifting. Even when the lid is opened and closed, even if it is held firmly by the hand, it is not stimulated by the annular convex bottom because it is a round surface. Further, since the inside of the body is annularly lowered around the periphery, even if the remaining food is low, it can be easily taken out to the end by stroking the spoon along the periphery.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, the above-mentioned effect is exerted by forming the curved upper bottom wall 3 on the body 1 to provide the annular convex bottom 7 instead of the thread bottom and providing the cover 2 with the concave portion 8 or the cover wall convex portion 27. Because of this, the planar shape of the container is not particularly limited, and examples thereof include a circle, an ellipse, a quadrangle, a hexagon, a polygon such as an octagon, and even a circle. FIG. 3 shows a quadrangular shape close to a circle. However, since the annular convex edge bottom 7 instead of the thread bottom needs to be provided in a slightly smaller annular shape at a place where it enters from the periphery, the side wall 5 of the body 1 needs to be inclined.
[0010]
Further, the presence or absence of the cover opening prevention device T is not particularly a problem. Therefore, the cover opening prevention device T is not necessary in a mode in which food is simply stored at home in a refrigerator and taken out as a lunch box or the like. However, when the cover opening prevention device T is provided (claim 3, embodiment), the handle is particularly strongly hung on the bottom for the release operation, but the projection 7 is rounded because the annular convex bottom 7 is rounded. The rounded convex bottom 7 is particularly effective in that it does not cause pain unlike the case with a thread bottom. In addition, about the structure of the lid opening prevention apparatus T, although two examples were shown in the embodiment, various other forms are possible.
[0011]
【The invention's effect】
As described above, according to the closed type container of the present invention, since the body has a rounded annular convex bottom as a substitute for the projecting thread bottom, the lid is opened and closed with the other hand while holding it with one hand. It can be used comfortably without strong stimulus being applied to the handle when holding it, and it can be stably stacked by holding its annular convex bottom or curved upper bottom wall in the concave part of the lid or convex part of the lid wall. In addition, even if it is a soup, the remainder can be completely scooped up conveniently, so that there is an excellent effect that it can be used without waste.
[0012]
【Example】
Next, an embodiment of the present invention will be described with reference to the drawings.
[0013]
The drawings show two examples implemented as containers used for packing and selling processed foods. The closed-type stacked containers Pa and Pb are composed of a body 1 and a lid 2 formed of transparent plastic. Thus, in plan view, each side of the square is bulged to form a round shape.
[0014]
FIGS. 1 to 4 show an example of a closed-type stackable container Pa according to the first embodiment of the present invention, in which a body 1 is formed of semi-hard plastic and a lid 2 is formed of hard plastic. The body 1 has an annular convex bottom 7 having a rounded cross section between the inclined side wall 5 and the curved upper bottom wall 3 because the bottom wall 3 is formed to be curved upward. Is formed at a position where it enters inside due to the inclination of the side wall 5. Further, the lid 2 is provided with a wide recess 8 due to refraction of the step 9 near the periphery, so that the body 1 of the upper container Pa fits into the recess 8 at the annular convex bottom 7 and does not shift to the step 9. Hang on. Therefore, the recess 8 may be annular along the annular convex bottom 7.
[0015]
The body 1 and the lid 2 are formed so as to fit tightly so that the juice does not leak. However, the structure of the lid preventing device T is taken together with the close fitting structure so that the body 1 and the lid 2 are not opened improperly in the middle of sales. In this regard, in the body 1, an upright opening wall 11 is formed at the upper end, and a ridge 13 is provided at the lower end thereof. In this case, it is provided in parallel with the upright opening wall 11. At one end of the strip 15, a cut groove 16 for cutting it is formed diagonally high from the lower edge counterclockwise, and a thin cut connector 18 is formed at the lower end. A knob 17 in the shape of a protrusion is provided.
[0016]
In addition, a hanging peripheral wall 19 that fits between the upright opening wall 11 of the body 1 and the band winding piece 15 and an inner peripheral ridge 21 that is joined to the inside of the upright opening wall 11 are vertically provided on the lid 2. The band-wrapping piece 15 is provided with hook grooves 23 and 24 in two stages, and the hanging peripheral wall 19 is formed with engaging protrusions 25 and 26 which are closely fitted to the hook grooves 23 and 24. Therefore, if the strip 17 is cut off by operating the knob 17 (see FIG. 4), the connection between the locking grooves 23, 24 and the engaging ridges 25, 26 is released. The lid 2 can be freely opened and closed without the function of the device.
[0017]
FIGS. 5 and 6 show an embodiment of the second aspect of the present invention. In the closed type container Pb, the body 1 is raised with the bottom wall 3 at the center as in the previous embodiment. By being formed in a curved shape, an annular convex bottom 7 is provided around the periphery, but the center of the lid wall is curved so that the lid 2 just fits in the curved upper bottom wall 3 of the annular convex bottom 7. The cover wall convex surface portion 27 is formed so as to swell.
[0018]
Regarding the lid opening prevention device T, unlike the above-described embodiment, since the strip 15 to be cut is formed on the lid 2, the lid 2 is formed of a soft plastic material that is easily cut off, and the body 1 is formed of a hard plastic. did. An upright opening wall 11 is formed at the upper end of the body 1, and engaging ridges 25 and 26 are formed up and down on the outer peripheral side thereof. An obstacle ridge 29 is provided. The lid 2 is provided with a hanging peripheral wall 19 protruding until it comes close to the obstacle ridge 29, and an inner peripheral ridge 21 which is in close contact with the inside of the upright opening wall 11 is provided vertically. The ridges 23 and 24 are formed.
[0019]
Of the upper and lower retaining grooves 23, 24, the upper retaining groove 23 is formed in the check pawl, so that the lid 2 is strongly retained so as not to open. And by this detention, the inner peripheral ridge 21 comes into close contact with the step portion 30 formed on the inner periphery of the body 1, thereby also ensuring watertightness.
[0020]
The release of the lid opening prevention device T is performed by cutting the hanging peripheral wall 19 with the upper hanging groove 23 (the broken line 20 indicates the cutting position). The portion below the groove 23 becomes the band wound piece 15, and a tongue-shaped knob 17, a cut groove 16 and a cut joint 18 are formed at one end thereof. Therefore, in the body 1 after opening, the upper end portion of the hanging peripheral wall 19 remains, and the standing wall portion 11 of the body 1 is sandwiched between the hanging peripheral wall 19 and the inner peripheral ridge 21 to ensure watertightness.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view as viewed from the front, showing a closed stackable container of the invention according to claim 1 in a stacked state.
FIG. 2 is an enlarged sectional view of a portion A in FIG.
FIG. 3 is a plan view of the closed type overlapping container.
FIG. 4 is a cross-sectional view showing a state in which a lid preventing device is released at a joint portion between the body and the lid of the hermetically-sealed container;
FIG. 5 is a cross-sectional view of the closed stack container of the invention according to claim 2 as viewed from the front, in a stacked state.
FIG. 6 is an enlarged sectional view of a portion B in FIG. 5;
[Explanation of symbols]
Pa, Pb Sealed stacking container T Lid preventing device 1 Body 2 Lid 3 Curved upper bottom wall 5 Side wall 7 Annular convex edge bottom 8 Recess 9 Step 11 Standing opening wall 15 Strip 16 Cut groove 17 Knob 18 Cut joint 27 Lid wall convex surface

Claims (3)

By forming a curved upper bottom wall whose body is raised at the center in the body, the inclined upper side wall and the curved upper bottom wall are formed by forming a curved upper bottom wall composed of a body and a lid formed of plastic so as to be closely fitted to each other. A closed-loop stacking, characterized in that a circular convex bottom with a round cross section that is continuous with the bottom is provided in place of the thread bottom, and a recess that drops due to a step is formed in the lid so that the circular convex bottom of the body fits. container. It consists of a body and a lid that are molded from plastic that fits closely together, and forms a curved upper bottom wall with a raised central part on the body, so that the inclined side walls and the curved upper bottom wall are rounded around it. A closed-type stackable container characterized in that an annular convex bottom having a continuous round cross section is provided in place of a thread bottom, and a lid has a lid wall convex surface on which a curved upper bottom wall is fitted. Either the body or the lid is made of soft or semi-rigid plastic, and the other is made of hard plastic, respectively, and provided with an opening prevention device. On the lid, a strip that is irremovably coupled to the other is formed so as to be cuttable along the winding direction, and a cut groove is formed at one end of the strip as a starting point of the cut with a cut joint. 3. The closed-type stackable container according to claim 1, wherein a cut knob is formed so as to protrude so as to apply a force for cutting a cut joint near the cut groove.

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