JP2015189477A - multi-temperature zone container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a multi-temperature zone container that can suppress movement of air from a partition of a hot temperature side to a partition of a low temperature side, without impairing the opening and closing work performance of a lid body.SOLUTION: A multi-temperature zone container 1 of the present invention can divide the inside of a container body 2 into a plurality of partitions different in temperature, and has a container body 2 and a lid body 3. Then, the container body 2 has: a partition wall 12 set up in the inside of the container body 2, and interposed between a partition Rh of a hot temperature side and a partition Rc of a low temperature side adjacently arranged to each other; and a ridge part 31 convexed in an upper end surface 13 of the partition wall 12, and having at least a portion extended along between the partition Rh of the hot temperature side and the partition Rc of the low temperature side. Then, the lid body 3 has a recessed groove 41 recessed in the lower surface of the lid body 3 and having the ridge part 31 inserted therein. A groove depth h2 of the recessed groove 41 becomes deeper than a projection height h1 of the ridge part 31.

Description

  The present invention relates to a multi-temperature zone container having two or more compartments having different temperatures in one container.

  In Patent Document 1, the inside of a container body is divided into right and left by a partition wall, and is divided into a high temperature side compartment and a low temperature side compartment. The structure of the cold storage container to be stopped is shown.

JP 2005-104567 A

  For example, if there is a gap between the upper end surface of the partition wall and the lid, the air in the high temperature side compartment passes through the gap and moves into the adjacent low temperature side compartment, and the temperature of the low temperature side compartment May rise. As shown in Patent Document 1, when a fitting convex part and a fitting concave part are provided on the partition wall and the cover body, respectively, and the structure is fitted and adhered to each other, the generation of the gap can be suppressed, but the lid body is attached to the container body. It will be firmly joined. Therefore, when performing the operation | work which attaches a cover body to a container main body, and the operation | work which removes a cover body from a container main body, an extra force is required, opening and closing workability | operativity will be impaired and there exists a possibility that the usability as a container may deteriorate.

  The present invention has been made in view of the above points, and its object is to suppress the movement of air from the high temperature side compartment to the low temperature side compartment without impairing the opening and closing workability of the lid. It is to provide a multi-temperature container that can be used.

  The multi-temperature zone container of the present invention that solves the above problems is a multi-temperature zone container that has a container body and a lid, and can divide the inside of the container body into a plurality of compartments having different temperatures, A partition wall standing between the high-temperature compartment and the low-temperature compartment that are erected inside the container body and adjacent to each other, and at least a part of the partition that protrudes from the upper end surface of the partition wall and that is on the high-temperature side And the cover body has a groove portion that is recessed on the lower surface of the cover body and into which the protrusion portion is inserted. The groove depth is deeper than the protruding height of the ridge.

  According to the present invention, it is possible to form a gap portion in the height direction between the ridge portion and the ridge portion in the groove portion in a state where the container body is covered with the lid. Therefore, when a gap is formed between the upper end surface of the partition wall and the lower surface of the lid, the high-temperature air that moves through the gap from the high-temperature side compartment toward the low-temperature side compartment And can be retained in the upper part of the gap. And the low temperature air which moved to the lower part of a gap part by temperature fall in a gap part can be made to flow into a division on the low temperature side. Therefore, the high temperature air is prevented from flowing directly from the high temperature side compartment to the low temperature side compartment, the temperature of the low temperature side compartment is prevented from rising due to the high temperature air, and the temperature state of each compartment is maintained over a long period of time. Can be maintained, and a high thermal insulation effect can be obtained.

  The multi-temperature zone container according to the present invention has a first ridge portion having a ridge portion protruding from the upper end surface of the partition wall, and an upper surface of the container body continuously from the first ridge portion and around one compartment. A first convex groove portion having a second convex strip portion projecting along the concave portion, the concave groove portion being concavely provided on a facing surface facing the upper end surface of the partition wall, and the first convex strip portion being inserted; It is preferable to have the 2nd groove part which is recessedly provided in the opposing surface which opposes an upper surface, and a 2nd protruding item | line part is inserted.

  According to the present invention, the gap is provided not only between the low temperature side compartment and the high temperature side compartment but also between one of the compartments and the outside. Accordingly, it is possible to prevent the flow of high temperature air from the high temperature side compartment to the low temperature side compartment, and also prevent the flow of high temperature air from the outside to one compartment and the outflow of high temperature air from one compartment to the outside. . Therefore, one compartment can maintain the temperature state of the compartment over a long period of time, and can obtain a higher cooling effect.

  The multi-temperature zone container of the present invention has a third ridge that is continuously provided on the upper surface of the container main body and along the periphery of the other compartment. It is preferable that the groove portion has a third concave groove portion that is recessed in a facing surface facing the upper surface of the container body and into which the third convex strip portion is inserted. According to the present invention, the gap is provided not only between the low temperature side compartment and the high temperature side compartment but also between the other compartment and the outside. Therefore, it is possible to prevent the flow of hot air from the high temperature side compartment to the low temperature side compartment, and also prevent the flow of high temperature air from the outside to the other compartment and the flow of high temperature air from the other compartment to the outside. . Therefore, the other compartment can maintain the temperature state of the compartment over a long period of time, and can obtain a higher heat retention effect.

  In the multi-temperature zone container of the present invention, it is preferable that a cross section of the first ridge portion has a semicircular shape. According to the present invention, when the lid body is put on the container body, the first convex strip portion can be smoothly guided and inserted into the first concave groove, and the lid closing operation can be further facilitated.

  In the multi-temperature zone container of the present invention, it is preferable that a cross section of the first groove portion has a semi-elliptical shape. According to the present invention, when the lid body is put on the container body, the first convex strip portion can be smoothly guided and inserted into the first concave groove, and the lid closing operation can be facilitated. Then, high-temperature air can be smoothly introduced and retained in the gap, and the air whose temperature has been lowered can be smoothly led out.

  According to the present invention, since the groove depth of the concave groove portion is deeper than the protruding height of the convex strip portion, the concave groove portion has a height between the convex strip portion in the state where the container body is covered with the lid. A gap in the vertical direction is formed. Therefore, a gap is formed between the upper end surface of the partition wall and the lower surface of the lid, and when high-temperature air tries to move from the high-temperature side compartment to the low-temperature side compartment through the gap, Air can flow into the gap and stay in the upper part of the gap. And the air which moved to the lower part of a gap | interval by the fall of temperature in a gap | interval part can be flowed into the division of a low temperature side. Therefore, it is possible to prevent high-temperature air from flowing directly from the high-temperature side compartment into the low-temperature side compartment, and to prevent the temperature of the low-temperature side compartment from rising. Therefore, the temperature state of each section can be maintained over a long period of time, and a high heat insulation and cooling effect can be obtained.

The perspective view which shows an example of the multi-temperature zone container concerning 1st Embodiment. Sectional drawing which shows typically the structure of the multi-temperature zone container concerning 1st Embodiment. The elements on larger scale which show another Example. The perspective view which shows an example of the multi-temperature zone container concerning 2nd Embodiment. Sectional drawing which shows typically the structure of the multi-temperature zone container concerning 2nd Embodiment. The perspective view which shows an example of the multi-temperature zone container concerning 3rd Embodiment. Sectional drawing which shows typically the structure of the multi-temperature zone container concerning 3rd Embodiment. The perspective view which shows an example of the multi-temperature zone container concerning 4th Embodiment. Sectional drawing which shows typically the structure of the multi-temperature zone container concerning 4th Embodiment. Sectional drawing explaining the state by which the protruding item | line part was inserted in the ditch | groove part. Sectional drawing which shows the other structural example of a protruding item | line part. Sectional drawing explaining the state by which each convex strip part shown in FIG. 11 was inserted in the groove part. Sectional drawing which shows a comparative example.

Next, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 is a perspective view illustrating an example of a multi-temperature zone container according to the first embodiment, and FIG. 2 is a cross-sectional view schematically illustrating the configuration of the multi-temperature zone container according to the first embodiment.

  As shown in FIGS. 1 and 2, the multi-temperature zone container 1 includes a container body 2 and a lid 3, each of which has a heat insulating structure. The multi-temperature zone container 1 can use, for example, a structure in which a hollow body is filled with a heat insulating material such as polyurethane resin, or a foam of polystyrene resin or polyolefin resin. The multi-temperature container 1 accommodates, for example, relatively hot ingredients such as rice and hot soup while keeping them in a cold state, and relatively cold ingredients such as cold salads and desserts. The present invention can be applied to a heat and cold container that retains and cools an object.

  The container body 2 has a rectangular shape that expands in a flat shape at a certain height. A partition wall 12 is erected inside the container body 2. The partition wall 12 partitions the inside of the container body 2 side by side into two regions, and forms two accommodating portions 11A and 11B adjacent to each other inside the container body 2. Each of the accommodating portions 11A and 11B is open to the upper surface 2a of the container body 2, and is set as a heat retaining compartment Rh (high temperature side compartment) in which the accommodating portion 11A retains a relatively high temperature object in a heated state. In addition, the storage unit 11B is set as a cold storage compartment Rc (low temperature side compartment) for storing a relatively low temperature stored item in a cooled state. Note that the accommodating portion 11A may be the cold insulation compartment Rc, and the accommodating portion 11B may be the thermal insulation compartment Rh.

  The partition wall 12 has a heat insulating structure similar to that of the container body 2, and is formed integrally with the container body 2 in the present embodiment. The partition wall 12 has an upper end surface 13 that is flush with the upper surface 2 a of the container body 2. On the upper end surface 13 of the partition wall 12, a protruding strip portion 31 is projected. The protruding portion 31 extends between the opening of the housing portion 11A and the opening of the housing portion 11B, and has a semicircular cross section. On the outer peripheral edge of the upper surface 2a of the container body 2, a step surface 15 that is one step lower than the upper surface 2a is continuously formed over the entire circumference.

  The lid 3 has a flat plate shape that spreads in a plane with a constant plate thickness. When the lid 3 is placed on the container body 2, the lower surface 21 of the lid 3 faces the upper surface 2 a of the container body 2. The outer peripheral surface of the lid 3 is in contact with the outer peripheral surface of the container body 2 so as to be flush with the upper and lower surfaces.

  On the lower surface 21 of the lid body 3, a recessed groove portion 41 into which the protruding strip portion 31 of the container body 2 is inserted is recessed. The recessed groove portion 41 is recessed in the facing surface 21 a facing the upper end surface 13 of the partition wall 12 in the lower surface 21 of the lid 3. The groove 41 has a semi-elliptical shape in which the groove depth h2 is deeper than the protruding height h1 of the ridge 31 and the maximum width W2 is slightly larger than the maximum width w1 of the ridge 31. Has been. When the lid body 3 is placed on the container body 2, the concave groove portion 41 completely enters the concave groove portion 41, and the lower surface 21 of the lid body 3 comes into contact with the upper end surface 13 of the partition wall 12. A gap S in the height direction is formed between the ridge 31 and the groove 41.

  FIG. 10 is a cross-sectional view illustrating a state in which the ridge portion is inserted into the groove portion. As for the dimensions of the ridges 31, the width w1 is preferably 1 mm to 20 mm, and the height h1 is preferably 0.5 mm to 10 mm, more preferably the width w1 is 4 mm to 8 mm, and the height h1 is 2 mm to 4 mm. The width w2 of the groove 41 is preferably larger by +0 mm to +8 mm than the width w1 of the ridge 31, and more preferably larger by +0 mm to +2 mm. The gap S has a larger volume in the height direction and air convection is more likely to occur. The height h3 of the gap S is defined as the distance between the top of the ridge 31 and the deepest part of the groove 41. 0.5 mm to 30 mm is preferable, and 2 mm to 12 mm is more preferable. In this Embodiment, when the upper limit of each dimension mentioned above about the protruding item | line part 31 and the groove part 41 is exceeded, there exists a possibility that the dimension of the container main body 2 and the wall thickness may become extremely large. In addition, if the lower limit of each dimension is exceeded, the ridge portion 31 cannot be completely inserted into the groove portion 41.

  Protrusions 22 and 23 are provided on the lower surface 21 of the lid 3. The protrusions 23 are inserted into the openings of the accommodating portions 11A and 11B when the lid body 3 is placed on the container main body 2, and are sealed. The protrusion 22 protrudes from the outer peripheral edge of the lid 3 and comes into contact with the step surface 15 of the container body 2.

  In the multi-temperature zone container 1 having the above-described configuration, the lid body 3 is placed on the container body 2 so that the upper end surface 13 of the partition wall 12 of the container body 2 faces the lower surface 21 of the lid body 3. Is inserted into the groove 41 of the lower surface 21 of the lid 3, and a gap S in the height direction (see FIG. 2) is formed between the groove 31 and the protrusion 31. Can do. Therefore, for example, when a gap is formed between the upper end surface 13 of the partition wall 12 and the lower surface 21 of the lid body 3, it passes through the gap and accommodates in the cold insulation compartment Rc from the accommodation portion 11 </ b> A as the thermal insulation compartment Rh. The high-temperature air that moves toward the portion 11 </ b> B can once flow into the gap S in the groove 41 and stay in the upper part of the gap S. And the air which moved to the lower part of the gap | interval part S by the fall of temperature in the gap | interval part S can be made to flow in the accommodating part 11B. Therefore, it is possible to suppress high-temperature air from flowing directly from the storage portion 11A into the storage portion 11B, and to prevent the low-temperature storage in the storage portion 11B from being warmed by the high-temperature air.

  According to the multi-temperature zone container 1 of the present invention, the ridge portion 31 is interposed between the low temperature side cold insulation compartment Rc and the high temperature side heat insulation compartment Rh, that is, between the accommodation portion 11A and the accommodation portion 11B. It protrudes from the upper end surface 13 of the partition wall 12 and extends so as to partition the housing portion 11A side and the housing portion 11B side. Between the accommodating part 11A and the accommodating part 11B is a place where movement of high-temperature air is likely to occur. By forming the protruding portion 31 and the recessed groove portion 41 at such a location, Air inflow can be prevented more positively, and a high heat insulation and cooling effect can be obtained.

FIG. 13 is a cross-sectional view showing a comparative example.
As shown in FIG. 13, the container 101 as a comparative example has an upper end surface 13 of the partition wall 12 and a facing surface 21 a of the facing lid 3 each having a planar shape, and the upper end surface 13 of the partition wall 12 and The lower surface 21 of the lid 3 is not provided with the convex strip portion 31 and the concave groove portion 41. Therefore, for example, when a gap is formed between the upper end surface 13 of the partition wall 12 and the opposing surface 21a of the lower surface 21 of the lid 3, the gap passes through the gap from the heat retaining compartment Rh that is a compartment on the high temperature side. High temperature air may flow into the cold insulation compartment Rc, which is a low temperature side compartment, and the cold insulation in the cold insulation compartment Rc may be impaired.

  On the other hand, in the multi-temperature zone container 1 of the present invention, as shown in FIG. 1, the protruding strip portion 31 is provided on the upper end surface 13 of the partition wall 12 and the concave groove portion 41 is recessed on the lower surface 21 of the lid 3. The convex strip 31 is inserted into the concave groove 41 by placing the lid 3 on the container body 2, and the gap S is formed in the concave groove 41 in the height direction. Therefore, for example, when a gap is formed between the upper end surface 13 of the partition wall 12 and the lower surface 21 of the lid body 3, the high temperature that has passed through the gap and moved from the heat insulation compartment Rh toward the cold insulation compartment Rc side. This air can once flow into the gap S in the groove 41 and can stay in the upper part of the gap S. And the air which moved to the lower part of the gap | interval part S by the fall of the temperature in the gap | interval part S can be made to flow into the cold insulation division Rc from a clearance gap. Therefore, it is possible to prevent high-temperature air from flowing directly from the heat insulation compartment Rh into the cold insulation compartment Rc, and to prevent the cold insulation compartment Rc from being heated by the air flowing from the heat insulation compartment Rh. Therefore, the heat transfer from the heat insulation section Rh to the cold insulation section Rc can be suppressed, the temperature state of each section can be maintained over a long period of time, and a high heat insulation effect can be obtained.

  According to the multi-temperature zone container 1 of the present invention, the ridge portion 31 is only inserted into the recessed groove portion 41, and the lid body 3 is simply placed on the container body 2. . Therefore, the operation of attaching the lid 3 to the container body 2 and the operation of removing the lid 3 from the container body 2 can be easily performed. Therefore, the flow of warm air from the heat insulation section Rh to the cold insulation section Rc can be suppressed without impairing the opening / closing workability of the lid 3, and a high heat insulation effect can be obtained.

  According to the multi-temperature zone container 1 of the present invention, since the cross section of the ridge portion 31 has a semicircular shape, the ridge portion 31 is smoothly formed into the groove portion 41 when the lid 3 is put on the container body 2. The lid 3 can be automatically positioned with respect to the container body 2. Therefore, the lid closing operation of attaching the lid 3 to the container body 2 and closing the lid can be facilitated.

  Further, since the cross section of the groove 41 has a semi-elliptical shape, similarly, when the lid 3 is put on the container body 2, the ridge 31 can be smoothly guided and inserted into the groove 41. The lid closing operation can be facilitated. Then, high-temperature air can be smoothly introduced and retained in the gap S, and the air whose temperature has been lowered can be smoothly led out.

  In the present embodiment, the case where the ridge portions 31 and the groove portions 41 form a pair has been described. For example, as shown in FIG. 3, the plurality of ridge portions 31 and the groove portions 41 may be provided in parallel. Well, with such a configuration, it is possible to further suppress the flow of high-temperature air from the heat insulation compartment Rh to the cold insulation compartment Rc, and to prevent an increase in the temperature of the cold insulation compartment Rc.

  Moreover, the cross-sectional shape of the protruding line part 31 and the recessed groove part 41 is not limited to the shape demonstrated in the above-mentioned embodiment, When the cover body 3 is mounted on the container main body 2, a protruding line part 31 completely enters the groove 41, the lower surface 21 of the lid 3 comes into contact with the upper end surface 13 of the partition wall 12, and a gap S in the height direction is formed between the protrusion 31 in the groove 41. For example, the cross-sectional shape of at least one of the ridge portion 31 and the groove portion 41 may be a rectangular shape.

  FIG. 11 is a cross-sectional view illustrating another configuration example of the ridge portion, and FIG. 12 is a cross-sectional view illustrating a state in which each ridge portion illustrated in FIG. 11 is inserted into the groove portion.

  In the above-described embodiment, the case where the cross section of the ridge portion 31 has a semicircular shape and the cross section of the groove portion 41 has a semi-elliptical shape has been described as an example. For example, the gap S may be formed between the protrusions 31A to 31K having the cross-sectional shapes shown in FIGS. 11 (a) to 11 (k), and FIGS. 12 (a) to 12 (k). The groove portions 41A to 41K having the cross-sectional shape shown in FIG.

  In the above-described embodiment, the case where the storage portion 11A is the heat insulation compartment Rh and the storage portion 11B is the cold insulation compartment Rc has been described as an example. However, the storage portion 11A is the cold insulation compartment Rc and the storage portion 11B is kept warm. It is good also as division Rh.

[Experimental example]
Table 1 below is a table showing the results of experiments conducted on the container 1 of the example of the present invention and the container 101 of the comparative example.

  The container 1 of the example and the container 101 of the comparative example differ only in whether or not the protrusions 31 and the grooves 41 are provided, and the same size and material are used for the containers. In the experiment, 5 liters of water was placed in the cold compartment Rc and 5 liters of hot water was placed in the thermal compartment Rh, and the temperature at the start and the temperature after 3 hours from the start were compared.

  In the container 1 of the example, the start temperature was 8.3 ° C. water and 80.3 ° C. hot water, but the temperature after 3 hours was 13.2 ° C. water and 62.6 ° C. hot water. In contrast, the container 101 of the comparative example had a start temperature of 8.2 ° C. water and 80.1 ° C. hot water, but the temperature after 3 hours passed was 18.2 ° C. water and 54. 7 ° C. Therefore, it can be seen that the container 1 of the example is more effective in keeping the cold and warm than the container 101 of the comparative example.

[Second Embodiment]
FIG. 4 is a perspective view showing an example of the multi-temperature zone container according to the second embodiment, and FIG. 5 is a cross-sectional view schematically showing the configuration of the multi-temperature zone container according to the second embodiment. In addition, about the component similar to 1st Embodiment, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol to FIG.4 and FIG.5.

  What is characteristic in the present embodiment is that a convex portion 32 is provided on the container body 2 so as to surround the opening of the accommodating portion 11B, which is the cold insulation compartment Rc, and the convex portion is provided on the lower surface 21 of the lid 3. That is, the recessed groove portion 42 into which the portion 32 is inserted is recessed.

  The ridge portion 32 includes a first ridge portion 32a protruding from the upper end surface 13 of the partition wall 12, and an upper surface 2a of the container body 2 continuously to the first ridge portion 32a and a cold storage compartment (one compartment). It has the 2nd protruding item | line part 32b protrudingly provided along the circumference | surroundings of Rc. The 1st protruding item | line part 32a is extended in the straight line shape over the length direction of the partition 12 along between the accommodating part 11A and the accommodating part 11B. The 2nd protruding item | line part 32b is protrudingly provided by the upper surface 2a of the container main body 2, and is planar shape substantially U shape so that it may surround the opening of cold storage division Rc continuously to the both ends of the 1st protruding item | line part 32a. It is extended.

  The concave groove portion 42 is formed in a concave surface 21a opposite to the upper end surface 13 of the partition wall 12, and the first concave groove portion 42a into which the first convex ridge portion 32a is inserted, and the opposing surface opposite to the upper surface 2a of the container body 2. It has the 2nd ditch | groove part 42b which is recessedly provided by 21b and in which the 2nd convex strip part 32b is inserted. The concave groove portion 42 is continuously provided in a circumferential shape so as to follow the periphery of the protrusion 23 of the lid 3 inserted into the accommodating portion 11B.

  The first ridge 32a and the second ridge 32b have a semicircular cross section, and the first and second grooves 42a and 42b are the first ridge 32a and the second ridge. Each of the sections 32b has a semi-elliptical cross-sectional shape that can be inserted. When the lid 3 is placed on the container body 2, the first groove portion 42 a and the second groove portion 42 b are the first groove portion 42 a and the second groove portion 42 b. The grooves 21b completely enter the concave groove portion 42b, the opposing surfaces 21a and 21b of the lower surface 21 of the lid 3 are in contact with the upper end surface 13 of the partition wall 12 and the upper surface 2a of the container body 2, and A gap S in the height direction is formed between the two.

  According to the multi-temperature zone container 1 in the present embodiment, the accommodating portion 11B that is the cold insulation compartment Rc is provided not only between the accommodation portion 11A that is the thermal insulation compartment Rh but also between the outside and the outside. It is done. Accordingly, it is possible to prevent the flow of high-temperature air from the housing portion 11A and to prevent the flow of high-temperature air from the outside. Therefore, the accommodating part 11B which is the cold insulation division Rc can maintain the temperature state in the division for a long period of time, and can obtain a higher cold insulation effect.

  In the above-described embodiment, the case where the second ridge portion 32b is provided along the periphery of the cold insulation compartment (one compartment) Rc has been described as an example. However, the second ridge portion 32b is provided as a heat insulation compartment ( The other section) may be provided along the periphery of Rh. According to this configuration, the gap portion S is provided not only between the accommodating portion 11B that is the cold insulation compartment Rc and the accommodating portion 11A that is the thermal insulation compartment Rh, but also between the thermal insulation compartment Rh and the outside. Accordingly, it is possible to prevent the flow of high-temperature air from the housing portion 11A to the housing portion 11B, and to prevent the flow of high-temperature air from the outside to the housing portion 11A and the flow of high-temperature air from the housing portion 11A to the outside. Therefore, 11 A of accommodating parts which are heat insulation division Rh can maintain the temperature state in a division over a long period of time, and can obtain a higher heat insulation effect.

[Third Embodiment]
FIG. 6 is a perspective view showing an example of a multi-temperature zone container according to the third embodiment, and FIG. 7 is a cross-sectional view schematically showing the configuration of the multi-temperature zone container according to the third embodiment. In addition, about the component similar to 1st and 2nd embodiment, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol to FIG.6 and FIG.7.

  What is characteristic in the present embodiment is that the ridges 33 are provided on the container body 2 so as to surround the openings of the accommodating portion 11B, which is the cold insulation compartment Rc, and the accommodating portion 11A, which is the thermal insulation compartment Rh. In other words, the concave groove portion 43 into which the ridge 33 is inserted is provided in the lower surface 21 of the lid 3.

  The ridge 33 is a first ridge 33a protruding from the upper end surface 13 of the partition wall 12, and the upper surface 2a of the container body 2 continuously to the first ridge 33a and a cold storage compartment (one compartment). Convex along the periphery of the heat retaining compartment (the other compartment) Rh on the upper surface 2a of the container main body 2 continuously from the second convex strip portion 33b provided along the circumference of Rc and the first convex strip portion 33a. It has the 3rd protruding item | line part 33c provided. The first ridge 33a extends in a straight line along the length direction of the partition wall 12 between the accommodating portion 11A and the accommodating portion 11B. The 2nd protruding item | line part 33b is protrudingly provided by the upper surface 2a of the container main body 2, and is planar shape substantially U shape so that it may surround the opening of cold storage division Rc continuously to the both ends of the 1st protruding item | line part 32a. It is extended. The 3rd protruding item | line part 33c is protrudingly provided by the upper surface 2a of the container main body 2, and is planar shape substantially U shape so that it may surround the opening of the heat retention division Rh continuously on the both ends of the 1st protruding item | line part 32a. It is extended.

  The concave groove portion 43 is recessed on the facing surface 21a facing the upper end surface 13 of the partition wall 12, and the first concave groove portion 43a into which the first convex strip portion 33a is inserted, and the facing surface facing the upper surface 2a of the container body 2. A second groove 43b that is recessed in 21b and into which the second protrusion 33b is inserted, and a third protrusion 33c that is recessed in the facing surface 21b that faces the upper surface 2a of the container body 2 are inserted. It has the 3rd groove part 43c. The concave groove portion 43 is continuously provided in a circumferential shape so as to follow the periphery of the protrusion 23 of the lid 3 inserted into the accommodating portion 11A and the accommodating portion 11B.

  The first ridge portion 33a, the second ridge portion 33b, and the third ridge portion 33c have a semicircular cross section, and the first groove portion 43a, the second groove portion 43b, and the third groove portion 43c. Has a semi-elliptical cross section with a dimension that allows insertion of the first and second ridges 32a and 32b. When the lid body 3 is placed on the container body 2, the first groove portion 43a, the second groove portion 43b, and the third groove portion 43c are provided with the first protrusion portion 33a, the second protrusion portion 33b, and the third groove portion 43c. The protrusion 33c completely enters the first groove 43a, the second groove 43b, and the third groove 43c, and the upper surface 13a of the partition wall 12 and the upper surface 2a of the container body 2 are opposed to the lower surface 21 of the lid 3. The surfaces 21 a and 21 b are in contact with each other, and a gap portion S in the height direction is formed between the convex groove portion 32 in the concave groove portion 42.

  According to the multi-temperature zone container 1 in the present embodiment, the gap portion S is provided not only between the accommodating portion 11A, which is the heat retaining compartment Rh, but also between the accommodating portion 11B, which is the cold compartment Rc. It is done. Therefore, it is possible to prevent the high temperature air from flowing out to the accommodating portion 11B and to prevent the high temperature air from flowing out to the outside. Therefore, the accommodating part 11B that is the cold compartment Rc can maintain the temperature state in the compartment for a long period of time, and the accommodating part 11A that is the thermal insulation compartment Rh can maintain the temperature state in the compartment for a long period of time. It is possible to obtain a higher thermal insulation effect.

  In the above-described embodiment, the case where the storage portion 11A is the heat insulation compartment Rh and the storage portion 11B is the cold insulation compartment Rc has been described as an example. However, the storage portion 11A is the cold insulation compartment Rc and the storage portion 11B is the heat insulation compartment Rh. It is good.

[Fourth embodiment]
FIG. 8 is a perspective view showing an example of a multi-temperature zone container according to the fourth embodiment, and FIG. 9 is a cross-sectional view schematically showing the configuration of the multi-temperature zone container according to the fourth embodiment. In addition, about the component similar to 1st-3rd embodiment, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol to FIG.8 and FIG.9.

  What is characteristic in the present embodiment is that the two ridges 34 and 35 are formed in the container body 2 so as to surround the openings of the accommodating portion 11B that is the cold insulation compartment Rc and the accommodating portion 11A that is the thermal insulation compartment Rh, respectively. Is provided on the lower surface 21 of the lid 3, and a concave groove portion 44 into which the convex strip portion 34 is inserted and a concave groove portion 45 into which the convex strip portion 35 is inserted.

  The ridges 34 are provided on the upper surface 2a of the container main body 2 in a continuous manner with one of the first ridges 34a provided on the upper end surface 13 of the partition wall 12 and one of the first ridges 34a. One section) has a second ridge 34b protruding along the periphery of Rc. The ridge 35 is provided on the upper surface 2a of the container body 2 and the heat retaining compartment (continuous to the other first ridge 35a provided on the upper end surface 13 of the partition wall 12 and the other first ridge 35a. The other section) has a third ridge 35b protruding along the periphery of Rh.

  One first ridge 34a and the other first ridge 35a extend in a straight line along the length direction of the partition wall 12 between the accommodating portion 11A and the accommodating portion 11B, respectively. . The 2nd protruding item | line part 34b is protrudingly provided by the upper surface 2a of the container main body 2, and planar view substantially U character so that it may surround the opening of cold storage division Rc continuously to the both ends of one 1st protruding item | line part 34a. It extends to the shape. The 3rd protruding item | line part 35b is protrudingly provided by the upper surface 2a of the container main body 2, and planar view substantially U character continuously encloses the opening of the heat retention division Rh at the both ends of the other 1st protruding item | line part 35a. It extends to the shape.

  The concave groove portion 44 is provided in a concave surface 21 a facing the upper end surface 13 of the partition wall 12, and is opposed to the first concave groove portion 44 a into which the first first ridge portion 34 a is inserted and the upper surface 2 a of the container body 2. It has the 2nd ditch | groove part 44b by which the 2nd protruding item | line part 34b is inserted in the opposing surface 21b. And the ditch | groove part 45 is recessedly provided in the opposing surface 21a facing the upper end surface 13 of the partition 12, and the 1st ditch | groove part 45a in which the other 1st protruding item | line part 35a is inserted, and the upper surface 2a of the container main body 2 are provided. It has the 3rd ditch | groove part 45b by which the 3rd protruding item | line part 35b was inserted in the opposing opposing surface 21b. The concave groove portions 44 and 45 are continuously provided in a circumferential shape so as to follow the periphery of the protrusion 23 of the lid 3 inserted into the accommodating portion 11A and the accommodating portion 11B, respectively.

  The convex strips 34 and 35 have a semicircular cross section, and the concave groove portions 44 and 45 have a semi-elliptical cross section with dimensions that allow the convex strips 34 and 35 to be inserted respectively. When the lid 3 is placed on the container main body 2, the concave groove portions 44 and 45 completely enter the concave groove portions 44 and 45, and the upper end surface 13 of the partition wall 12 and the container main body 2. The opposing surfaces 21a, 21b of the lower surface 21 of the lid 3 are in contact with the upper surface 2a of the cover 3, and a gap S in the height direction is formed between the convex grooves 34, 35 in the concave grooves 44, 45.

  According to the multi-temperature zone container 1 in the present embodiment, the gap portion S is provided not only between the accommodating portion 11A, which is the heat retaining compartment Rh, but also between the accommodating portion 11B, which is the cold compartment Rc. It is done. And the accommodating part 11B which is the cold insulation area Rc is not only between the accommodating part 11A which is the heat insulation area Rh but also between the outside, the gap S is formed. And between the accommodating parts 11A and 11B, the two gap | interval part S extended in parallel mutually is formed of the 1st protruding item | line parts 34a and 35a and the 1st recessed groove parts 44a and 45a.

  Therefore, it is possible to more reliably prevent high-temperature air from flowing out from the housing portion 11A to the housing portion 11B. In addition, it is possible to prevent the flow of high-temperature air from the outside into the housing portions 11A and 11B and the outflow of high-temperature air from the housing portions 11A and 11B to the outside. Therefore, the accommodating part 11B that is the cold compartment Rc can maintain the temperature state in the compartment for a long period of time, and the accommodating part 11A that is the thermal insulation compartment Rh can maintain the temperature state in the compartment for a long period of time. It is possible to obtain a higher thermal insulation effect.

  The contents of the present invention are not limited to the configurations of the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Multi-temperature zone container 2 Container main body 2a Upper surface 3 Cover body 11A, 11B Storage part 12 Bulkhead 13 Upper end surface 21 Lower surface 21a, 21b Opposite surface 22, 23 Protrusion 31, 32, 33, 34, 35 Projection part 32a, 33a, 34a, 35a First ridges 32b, 33b, 34b Second ridges 33c, 35b Third ridges 41, 42, 43, 44, 45 Grooves 42a, 43a, 44a, 45a First grooves 42b, 43b, 44b 2nd groove part 43c, 45b 3rd groove part S Gap part Rh Thermal insulation division Rc Cold insulation division

Claims (5)

A multi-temperature zone container having a container body and a lid, and capable of dividing the inside of the container body into a plurality of compartments having different temperatures,
The container body is provided with a partition wall interposed between a high temperature side compartment and a low temperature side partition which are erected inside the container body and are adjacent to each other, and at least a part of the partition body protrudes from the upper end surface of the partition wall. Has a ridge extending between the high temperature side compartment and the low temperature side compartment,
The lid body has a concave groove portion that is recessed in the lower surface of the lid body and into which the convex strip portion is inserted, and the groove depth of the concave groove portion is deeper than the protruding height of the convex strip portion. Multi-temperature zone container. The ridges are provided on the upper surface of the container main body and along the periphery of one of the first ridges provided on the upper end surface of the partition wall and the first ridges. A second ridge that is
The concave groove portion is formed on a lower surface of the lid body and on a facing surface facing the upper end surface of the partition wall, the first concave groove portion into which the first convex ridge portion is inserted, and the lower surface of the lid body; 2. The multi-temperature zone container according to claim 1, wherein the multi-temperature container is provided with a second groove portion that is recessed on an opposing surface facing the upper surface of the container body and into which the second protrusion is inserted. The ridge portion has a third ridge portion that is continuously provided on the upper surface of the container main body and along the periphery of the other compartment continuously to the first ridge portion,
The concave groove portion has a third concave groove portion that is concavely provided on a lower surface of the lid body and is opposed to an upper surface of the container body and into which the third convex strip portion is inserted. 2. The multi-temperature zone container according to 2.   The multi-temperature zone container according to any one of claims 1 to 3, wherein the protruding portion has a semicircular cross section.   The multi-temperature zone container according to any one of claims 1 to 4, wherein the concave groove section has a semi-elliptical cross section.

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