JP2007313232A - Lunch box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the storage space in a plurality of container lids of a lunch box while preventing a storage bag, etc. from being stained with juices in the container lids when the lunch box is carried in the storage bag with the plurality of container lids detached from the respective containers. <P>SOLUTION: The lunch box comprises first and second containers 10 and 20 and first and second container lids 11 and 21 corresponding to the respective containers. The center parts 11a and 21a on the lower surfaces of the respective container lids are formed to cover the upper openings of the corresponding first and second containers 10 and 20. The first and second container lids 11 and 21 can be engaged with each other on their respective lower surfaces. When the container lids 11 and 21 are engaged with each other, grooved side walls 11c and 21c formed on the respective container lids are brought into contact with each other on the whole circumference so that the center parts 11a and 21a on the lower surfaces are closed to each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lunch box including a first container and a second container provided separately from each other, and a first container lid and a second container lid that cover upper surface container ports of the first and second containers.

  As this type of lunch box, for example, in addition to the first and second containers, a main container having a heat insulating structure provided separately from these and a main container having a heat insulating structure covering the upper surface container opening of the main container There is a thing provided with a lid (for example, patent documents 1).

  The main container is a container on the premise that rice is packed. On the other hand, the first and second containers are presupposed that vegetables are packed, and are containers that do not have a special heat insulation structure.

  The center portions of the lower surfaces of the first container lid and the second container lid serve as covering plates for the upper surface container ports of the corresponding first container and second container, respectively. Moreover, the lower surface outer peripheral part of the 1st and 2nd container lid is a fitting part pushed into the surrounding wall upper part of a corresponding 1st container and a 2nd container, respectively. Thus, the external shape minimization of the 1st and 2nd container lid is achieved by using the lower-surface outer peripheral part of the 1st and 2nd container lid as a fitting part.

  As described above, when there are a plurality of containers for the lunch box, a storage bag and a storage container are often separately prepared in consideration of portability.

JP 2001-137031 A

However, the larger the number of containers in the lunch box, the larger the storage bags and storage containers and the higher the cost. For this reason, the lunch box must have a compact storage space.
In addition, when savory vegetables are packed in a container, while the storage bag or the lunch box emptied in the storage container is carried, the sap that has adhered to the container or the container lid leaks and the storage bag etc. Taint. The posture of the empty container is comparatively stable when it is carried, but when it is carried with the container lid removed from the container, the container lid moves around in the storage bag etc. Etc. are easy to get dirty.

  Therefore, the object of the present invention is to prevent the storage bag and the like from being stained with the spillage of the container lid while carrying the lunch box in the storage bag or the like with the plurality of container lids removed from the containers. This is to reduce the storage space of the container lid.

  To achieve the above object, the present invention includes a first container and a second container provided separately from each other, and first and second container lids provided corresponding to the first and second containers, respectively. A lunch box having a lower surface center portion of each of the first and second container lids so as to cover the upper surface container ports of the corresponding first and second containers; When the first and second container lids are fitted to each other, the peripheral walls formed on each of the container lids contact each other over the entire circumference. Therefore, a configuration is adopted in which the center portions of the lower surfaces of each other are closed.

Specifically, the first and second container lids can be fitted to each other so that they enter each other, so that the storage space is higher in the vertical direction of both container lids than when both container lids are individually stored. Is compressed. That is, the storage space for the plurality of container lids is reduced.
Here, since the first and second container lids are configured to be fitted so as to enter each other on their lower surfaces, when the first and second container lids are fitted, The structure which the formed surrounding walls contact over the perimeter is attained.
In addition to such a configuration, by adopting a configuration in which the center portions of the lower surfaces are closed by contact over the entire circumference of the peripheral walls, the center portions of the lower surfaces, which are the portions where both the container lids adhere, are opposed to each other. The space is closed. That is, even when the first and second container lids are removed from the first and second containers, respectively, it is possible to prevent the spillage from leaking from the first and second container lids.
Therefore, according to this configuration, while the lunch box is carried in a storage bag or the like with the plurality of container lids removed from each container, the storage bag or the like is prevented from being soiled by the scum of the container lid, The storage space for the lid can be reduced.

In the above configuration, the outer peripheral portions of the lower surfaces of the first and second container lids have a groove structure that is fitted to the corresponding upper side peripheral walls of the first and second containers, and the first and second container lids It is possible to adopt a configuration in which one of the groove side walls is pushed into the groove on the outer peripheral portion of the other lower surface so that both container lids are fitted.
According to this structure, said closure is realizable using the groove | channel structure for the attachment or detachment with respect to the 1st and 2nd container of a 1st and 2nd container lid. Such a groove structure is advantageous for minimizing the outer shape of both container lids as described above. That is, according to this configuration, it is possible to achieve both minimization of the lid shape of the first and second container lids and prevention of complication.

Further, in the above configuration, the main container having a heat insulating structure provided separately from the first and second containers, and a main container lid having a heat insulating structure covering an upper surface container port of the main container, the first and second containers are provided. The second container lid can be placed on the main container lid in a state of being fitted to each other, and at least one of the first and second container lids, and the main container lid, If the structure provided with the uneven part which determines the mounting position with respect to the said main container lid of at least one container lid is employ | adopted, the said 1st and 2nd container lid fitted mutually and at least one container lid will be the main container By placing on the lid, the storage positions of both container lids are difficult to shift.
Therefore, according to this configuration, the first and second container lids can be prevented from moving in the storage bag or the like while being integrated, and as a result, the storage bag or the like can be more effectively contaminated with the scum of the container lid. Can be prevented.
In addition, since the storage space of the first and second container lids is compressed up and down, the lunch box can be horizontally arranged while suppressing an increase in the size of the storage bag or the like even when the storage space is placed on the main container lid. The storage space can be narrowed.

In the configuration including the main container, the first container and the second container are nested, and the first and second containers can be stored in the main container in the nested state. Can do.
According to this configuration, since the first and second container lids are placed on the main container lid, both the first container and the second container can be nested while avoiding an increase in size of the main container. By storing the container in the main container, the storage space of the lunch box can be greatly reduced.
Here, since the main container has a heat insulating structure, when the size is increased, manufacturing becomes particularly difficult and the cost is increased. This configuration is effective in that it is possible to avoid an increase in the size of the main container and to reduce the storage space while preventing an increase in the cost of the lunch box.
Further, since the first and second containers are housed in the main container, it is possible to reliably prevent the leakage of juice from the first container and the second container using the seal structure of the main container lid, It is possible to reliably prevent the storage bag and the like from becoming dirty with the sap from the empty container.

  As described above, the lunch box according to the present invention adopts the above-described configuration, and while the lunch box is carried in a storage bag or the like with the plurality of container lids removed from each container, the storage bag or the like is the container lid. The storage space of the container lid can be made small while preventing it from becoming dirty with the sap.

Hereinafter, a heat insulation lunch box according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1 to 3, the lunch box according to the embodiment includes first and second containers 10 and 20 provided separately from each other, and a main container 30 having a heat insulating structure.

  The first and second containers 10 and 20 are nested so that the first container 10 is a parent container and the second container 20 is a child container.

  The main container 30 includes a heat insulating container 31 and an inner container 32. The heat insulating container 31 integrates an outer case 31a and an inner case 31b, and has a vacuum heat insulating layer 31c between both cases 31a and 31b. It is also possible to form a vacuum heat insulating layer directly on the inner container 32 and to configure the main container 30 from a single container. Other heat insulating structures can also be employed.

  In addition, the lunch box according to the embodiment has a heat-insulating structure that covers the first and second container lids 11 and 21 provided corresponding to the first and second containers 10 and 20 respectively, and the upper surface container opening of the main container 30. And a main container lid 33.

  The lower surface central portions 11a and 21a of the first and second container lids 11 and 21 are formed so as to cover the upper surface container ports of the corresponding first and second containers 10 and 20, respectively.

  The heat insulating structure of the main container lid 33 is provided by filling the internal space with a heat insulating material 33a. In addition, it can also be set as a vacuum heat insulation layer.

  The outer periphery of the main container lid 33 is provided with a packing 33b over the entire periphery. When the outer periphery of the main container lid 33 is fitted to the upper part of the inner periphery of the inner container 32, it is sealed watertight. Yes.

  Here, the first container 10 and the second container 20 have a size relationship that can be accommodated in the inner container 32 of the main container 30 in a nested state. Even in this stored state, the main container lid 33 can be fitted into the inner container 32 without interference.

  Each lower surface outer peripheral part 11b, 21b of the first and second container lids 11, 21 has a groove structure fitted to the corresponding side peripheral wall upper parts 10a, 20a of the first and second containers 10, 20. ing.

  One groove side wall 11c, 21c of each lower surface outer peripheral part 11b, 21b of the first and second container lids 11, 21 is a bulging part over the entire circumference. On the other hand, the side wall upper portions 10a and 20a of the first and second containers 10 and 20 are bulged portions over the entire circumference. Due to the bulging, the first and second container lids 11 and 21 push the groove structures of the lower surface outer peripheral portions 11b and 21b into the corresponding side peripheral wall upper portions 10a and 20a of the first and second containers 10 and 20, respectively. Can be detachably fitted.

  Here, each lower surface outer peripheral portion 21b of the second container lid 21 has a dimensional relationship in which one groove side wall 21c is opposed to the groove of the lower surface outer peripheral portion 11b of the first container lid 11 in the vertical direction. . Thereby, it is possible to fit both the container lids 11 and 21 so as to enter each other on their lower surfaces. The storage space is compressed in the vertical direction of the container lids 11 and 21 as compared with the case where the container lids 11 and 21 are separately stored. That is, the storage space for both container lids 11 and 21 is reduced.

  Further, when the container lids 11 and 21 are fitted together, the container lids 11 and 21 can be pushed in by engagement with the bulging structure between the groove side walls 11c and 21c of the container lids 11 and 21. The container lids 11 and 21 can be fitted and detached.

  Further, when the first and second container lids 11 and 21 are fitted by such push-fitting, due to the bulging of one of the groove side walls 11c and 21c formed in each of the container lids 11 and 21, One groove side wall 11c, 21c (peripheral wall) mutually contacts over a perimeter firmly. Thereby, mutual lower surface center part 11a, 21a can be closed. As a result, the space where the lower surface central portions 11a and 21a, which are the portions to which the juice adheres, of the container lids 11 and 21 face each other is formed in a closed manner by such push-in fitting. That is, even when the first and second container lids 11 and 21 are removed from the first and second containers 10 and 20, respectively, the leakage of the spillage from the first and second container lids 11 and 21 is prevented.

  The first and second container lids 11 and 21 are sized so as to be placed on the main container lid 33 while being fitted to each other.

  On both upper surfaces of the first and second container lids 11 and 21 (or at least one of them), annular protrusion inner peripheral portions 11d and 21d are formed. On the other hand, on the upper surface of the main container lid 33, a projecting outer peripheral portion 33c having a smaller diameter than the annular projecting inner peripheral portions 11d and 21d is formed. The protruding inner peripheral portions 11d and 21d (uneven portions) of the first and second container lids 11 and 21 and the protruding outer peripheral portion 33c (uneven portion) of the main container lid 33 are the first and second container lids 11 and 21, respectively. In any case, the mounting position of the container lid with respect to the main container lid 33 is determined in the radial direction. Therefore, the first and second container lids 11 and 21 fitted to each other are placed on the main container lid 33 so that the storage positions are not easily displaced.

  As shown in FIG. 4, a dedicated storage bag 40 is prepared for the lunch box according to this embodiment. When the main container 30 is stored in the storage bag 40, the fitted first and second container lids 11 and 21 are placed on the main container lid 33, and the drawstring opening 42 is squeezed, the drawstring opening 42 becomes the first and The second container lids 11 and 21 can be squeezed from the radial direction and from above. For this reason, the protrusion inner peripheral parts 11d and 21d (uneven portion) of the first and second container lids 11 and 21 and the protrusion outer peripheral portion 33c (uneven portion) of the main container lid 33 are more difficult to shift.

  Further, since the storage spaces of the first and second container lids 11 and 21 are compressed up and down, even when the storage space is placed on the main container lid 33, the storage bag 40 is prevented from being enlarged while being horizontally expanded. The storage space for the lunch box can be reduced.

  In the lunch box according to this embodiment, the storage bag 40 can freely squeeze the excess space generated in the bag side periphery 41 in a state where the first and second containers 10 and 20 are nested and stored in the main container 30. It has become possible. As a result, even if the storage bag 40 is carried with the handle belt 43, the main container 30 is prevented from shifting in the storage bag 40.

  As described above, the lunch box according to this embodiment has the container lids 11 and 11 with the first and second container lids 11 and 21 removed from the containers 10 and 20 as shown in FIGS. Since the storage space is compressed in the vertical direction of the two container lids, the storage space of the first and second container lids 11 and 21 can be made smaller than when the 21 is stored individually.

  In the lunch box according to this embodiment, the first and second container lids 11, 21 are removed from the containers 10, 20 while the lunch box is carried in the storage bag 40, soup in both the container lids 11, 21. Since the space where the lower surface central portions 11a and 21a, which are air adhering portions, face each other is formed in a closed manner, it is possible to prevent the storage bag 40 from being contaminated with the juice of the first and second container lids 11 and 21. it can.

  In addition, the lunch box according to this embodiment realizes the above-described closing by using the groove structures 11b and 21b for detaching the first and second container lids 11 and 21 from the first and second containers 10 and 20. That is, it is possible to achieve both minimization of the lid shape of the first and second container lids 11 and 21 and prevention of complication.

  In addition, the lunch box according to this embodiment includes the first and second container lids 11 and 21 with the projecting inner peripheral portions 11d and 21d (uneven portions) and the main container lid 33 with the projecting outer peripheral portion 33c. Since the second container lids 11 and 21 are prevented from moving in the storage bag 40 while being integrated with each other, it is more effective that the storage bag 40 is contaminated with the juice of the first and second container lids 11 and 21. Can be prevented.

  In the lunch box according to this embodiment, the storage space of the first and second container lids 11 and 21 is compressed up and down. The storage space of the lunch box can be narrowed in the horizontal direction while suppressing the reduction.

  In the lunch box according to this embodiment, the first and second container lids 11 and 21 are placed on the main container lid 33, and the first and second containers 10 and 20 are nested. Both containers 10 and 20 can be accommodated in the inner container 32 of the main container 30 while avoiding the increase in size of the container 30, and the storage space for the lunch box can be greatly reduced.

  As a result, the lunch box according to this embodiment prevents the heat insulation container 31 having the vacuum heat insulation layer 31c, the inner container 32, and the like from being enlarged, so that the storage space is reduced while preventing the cost of the lunch box from being increased. Can be small.

  Further, in the lunch box according to this embodiment, since the first and second containers 10 and 20 are accommodated in the main container 30, the leakage of juice from both the containers 10 and 20 can be prevented by packing 33 b of the main container lid 33. Therefore, it is possible to reliably prevent the storage bag 40 from being contaminated with the juice from the empty containers 10 and 20.

(A) Vertical sectional view of the first and second containers of the lunch box according to the embodiment, (b) Vertical sectional view of the main container of the lunch box according to the embodiment Whole perspective view of the lunch box of FIG. 1 is a longitudinal sectional view showing a state in which the first and second containers are stored in the main container of the lunch box of FIG. 1 and the first and second container lids are placed on the main container lid. Operational diagram showing a state in which the lunch box is stored in the storage bag in the state of FIG.

Explanation of symbols

10 first container 10a side peripheral wall upper part 11 first container lid 11a lower surface center part 11b lower surface outer peripheral part 11c groove side wall 11d protrusion inner peripheral part (uneven portion)
20 Second container 20a Side peripheral wall upper part 21 Second container lid 21a Lower surface center part 21b Lower surface outer peripheral part 21c Groove side wall (peripheral wall)
21d Inner perimeter (uneven portion)
30 Main container 31 Heat insulation container 31a Outer case 31b Inner case 31c Vacuum heat insulation layer (heat insulation structure)
32 Inner container 33 Main container lid 33a Heat insulation material (heat insulation structure)
33b Packing 33c Projection outer peripheral part (uneven part)
40 Storage bag 41 Bag side circumference 42 Drawstring opening 43 Handle belt

Claims (4)

First and second containers provided separately from each other, and first and second container lids provided corresponding to the first and second containers, respectively.
In the lunch box formed so that the lower surface center part of each of the first and second container lids covers the upper surface container port of the corresponding first and second containers,
When the first and second container lids can be fitted so as to enter each other on their lower surfaces, and the first and second container lids are fitted, the peripheral walls formed on each of the container lids are A lunch box characterized in that the lower surface central portions of each other are closed by contacting over the entire circumference.   Each lower surface outer peripheral portion of the first and second container lids has a groove structure fitted to the corresponding side peripheral wall upper portion of the first and second containers, and one groove of the first and second container lids The lunch box according to claim 1, wherein the container lid is fitted by pushing the side wall into the groove on the outer peripheral portion of the other lower surface. A heat-insulating main container provided separately from the first and second containers, and a heat-insulating main container lid that covers the upper-surface container port of the main container;
The first and second container lids can be placed on the main container lid in a state of being fitted to each other,
The at least one container lid of the said 1st and 2nd container lids and the said main container lid were provided with the uneven | corrugated | grooved part which determines the mounting position with respect to the said main container lid of the said at least one container lid. Or the lunch box of 2.   The lunch box according to claim 3, wherein the first container and the second container are nested, and the first and second containers can be stored in the main container in the nested state.

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