JP2012042109A - Cooling tray - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling tray which can properly ensure close contact between a cold storage agent container and a metal plate by suppressing the deformation of the cold storage agent container formed of a synthetic resin.SOLUTION: The cooling tray is configured by sealing a cold storage agent in a hollow box-shaped cold storage agent container 1 formed of a synthetic resin. The cold storage agent container 1 is molded by insert blow-molding with a metal plate M buried in the upper wall 10 thereof. The metal plate M has a plurality of recessed parts M1 on its peripheral edges, and is buried in the upper wall 10 with its top face partially exposed to the outside. The upper wall 10 includes an upper face support 12 covering the upper face peripheral edge of the metal plate M, a lower face support covering the lower face of the metal plate M, and a side face support covering the side faces of the metal plate M and connecting the upper face support 12 to the lower face support. The side face support comprises a first side face support covering outside faces of the metal plate M and a second side face support covering inner faces of the recessed parts M1 of the metal plate.

Description

  The present invention relates to a cooling tray that is stored and used in a freezer compartment of a refrigerator or a freezer, for example.

  Conventionally, a technology for accelerating food freezing in a freezing chamber by storing a cooling tray filled with a regenerator in a freezer compartment of a refrigerator or a freezer and placing food on the cooling tray is known ( For example, see Patent Document 1). The cooling tray of patent document 1 is comprised from the synthetic resin or metal cold storage agent container 100 with which the cold storage agent T was enclosed inside, and the metal plate M arrange | positioned on the cold storage agent container 100 ( FIG. 7 (a)). In a freezing room in which such a cooling tray is stored, when food is placed on the metal plate M of the cooling tray, the food is heated by the cold storage agent T in the cooling tray in addition to the cold air supplied to the freezing room. Is deprived of, so the temperature drops rapidly and becomes frozen.

Japanese Patent Laying-Open No. 2005-083629

  By the way, it is preferable to form the cool storage container 100 of the cooling tray from a synthetic resin rather than a metal from the viewpoint of ease of molding and cost. However, the synthetic resin regenerator container 100 has a drawback that it is more easily deformed than the metal regenerator container 100. Due to the deformation of the regenerator container 100, the regenerator container 100 and the metal plate M There was a problem that the adhesiveness was lowered. Specifically, as shown in FIG. 7B, when the internal pressure of the cool storage agent container 100 increases during the freezing and expansion of the cool storage agent T, the cool storage agent container 100 expands and deforms so that the center portion expands outward. . At this time, peeling occurs between the peripheral edge portion of the metal plate M and the cool storage agent container 100, and the adhesion between the cool storage agent container 100 and the metal plate M decreases. And if the adhesiveness of the cool storage agent container 100 and the metal plate M falls, the heat | fever of the food mounted on the metal plate M cannot fully be transmitted to the cool storage agent T in the cool storage agent container 100, and cooling Reduces the cooling capacity of the tray.

  The present invention has been made in view of such conventional circumstances, and the object thereof is to suppress the deformation of the cold storage container made of synthetic resin caused by the freezing expansion of the cold storage agent, and to store the cold storage container and the metal It is providing the cooling tray which can ensure suitably adhesiveness with a board.

  In order to achieve the above object, the cooling tray according to claim 1 is a cooling tray in which a cool storage agent is enclosed in a synthetic resin cool storage agent container having a hollow box shape, and the cool storage agent container is The metal plate is formed by insert blow molding in a state where a metal plate is embedded in the upper wall, and the metal plate has a plurality of concave portions on the periphery and a part of the upper surface is exposed to the outside. The upper wall is embedded in an upper wall, and the upper wall covers an upper surface periphery of the metal plate, a lower surface support that covers a lower surface of the metal plate, a side surface of the metal plate, and the upper surface support. A side support portion that connects the lower surface support portion, the side support portion covering a first side support portion that covers the outer surface of the metal plate, and a second side surface support portion that covers the inner surface of the recess of the metal plate. It is characterized by the following.

  According to the said structure, the upper wall of the cool storage agent container formed with a synthetic resin is reinforced by embedding the metal plate conventionally arrange | positioned on the cool storage agent container in the upper wall of a cool storage agent container. . As a result, even when a force for deforming the cool storage agent container is applied due to an increase in internal pressure during freezing and expansion of the cool storage agent, it is possible to suppress the deformation of the upper wall, and the adhesion between the upper wall and the metal plate Sex can be secured. Further, the upper surface support portion, the lower surface support portion, and the side surface support portion are formed on the upper wall, and the metal plate is configured to be supported from above, below, and side in the upper wall. Therefore, it is difficult for the metal plate to peel (detach) from the cool storage agent container.

  Furthermore, while forming a some recessed part in the peripheral part of a metal plate, as a side surface support part of an upper wall, the 1st side surface support part which covers the outer surface of a metal plate, and the 2nd side surface support which covers the inner surface of the recessed part of a metal plate Part. By forming the second side surface support portion in addition to the first side surface support portion, the side surface support portion is formed in a serpentine shape as viewed from above. Therefore, the support length of the side surface support portion that covers the side surface of the metal plate can be secured longer, and the support strength of the metal plate is improved accordingly. In particular, when the side surface support portion has the meandering shape, the side surface support portion is connected to the upper surface support portion and the lower surface support portion with a predetermined width corresponding to the meandering width as a whole. Deformation of the support portion can be effectively suppressed.

  A cooling tray according to a second aspect is the invention according to the first aspect, wherein the inner edge of the upper surface support portion overlaps the bottom surface of the concave portion of the metal plate in the thickness direction of the regenerator container, or the same. It is located outside the bottom surface of the recess.

  When the cool storage agent container is formed by insert blow molding, the portion of the upper surface support portion that covers the metal plate is stretched to have a U-shaped cross section and is formed thin, so that the strength tends to decrease. According to the said structure, the site | part which coat | covers the metal plate in an upper surface support part is limited only to the outer side rather than the bottom face of the recessed part in the upper surface peripheral part of a metal plate, and is not formed inside a recessed part. Therefore, it is possible to suppress a decrease in strength of the upper surface support portion caused by forming a portion covering the metal plate.

  According to a third aspect of the present invention, in the invention according to the first or second aspect, the cooling tray is formed on the side surface of the concave portion of the metal plate so that the distance between the opposing side surfaces is narrower than the bottom surface side. A retaining part is provided. According to the above configuration, when the metal plate is about to come off from the upper wall, a catch is generated between the retaining portion and the second side support portion. Thereby, it can control that a metal plate removes from an upper wall.

  According to a fourth aspect of the present invention, in the cooling tray according to any one of the first to third aspects, a tip is fixed to the lower surface support portion between the lower surface support portion and the lower wall. And a restricting portion whose base end is fixed to the lower wall.

  According to the said structure, a control part becomes a pillar which supports between the lower surface support part and lower wall of the upper wall of a cool storage agent container, and keeps the space | interval between the lower surface support part and lower wall of an upper wall constant. be able to. This suppresses deformation of the regenerator container such as deformation (expansion deformation) that increases the distance between the lower surface support portion and the lower wall of the upper wall and deformation (warping) that attempts to narrow the distance. Can do.

  According to the cooling tray of the present invention, while the cool storage agent container is formed of a synthetic resin, the cool storage agent container is prevented from being deformed due to the freezing and expansion of the cool storage agent, and the close contact between the cool storage agent container and the metal plate is achieved. Property can be suitably secured.

(A) is a perspective view of a cooling tray, (b) is a perspective view of a metal plate. (A) is the upper surface enlarged view of a cooling tray, (b) is the bb sectional view taken on the line of (a), (c) is the cc sectional view taken on the line (a). The fragmentary sectional view of a cooling tray. The xx sectional view taken on the line of Fig.1 (a). (A), (b) is the upper surface enlarged view of the metal plate of another example. (A), (b) is the upper surface enlarged view of the cooling tray of another example. (A) is sectional drawing of the conventional cooling tray, (b) is sectional drawing of the cooling tray of an expansion deformation state.

Hereinafter, the cooling tray of this invention is demonstrated based on drawing.
The cooling tray of the present embodiment has a hollow box shape, and is formed by enclosing a regenerator T in a regenerator container 1 made of synthetic resin and molded with a metal plate M embedded by insert blow molding. . Insert blow molding is a method in which molding is performed in a state where a metal plate M is arranged in advance in a blow mold. Specifically, a cylindrical parison made of a melted synthetic resin is formed, and a blow mold having a metal plate M arranged at a predetermined position is clamped so as to sandwich the parison. Thereafter, air is blown into the parison, and the parison is stretched along the cavity inner surface of the blow mold and the metal plate M, thereby forming the regenerator container 1 in which the metal plate M is embedded.

  As a synthetic resin which forms the cool storage agent container 1, the well-known thing generally used for a cooling tray, for example, polyethylene, and a polypropylene can be used. As a material of the metal plate M embedded in the cool storage agent container 1, a known material generally used for a cooling tray, for example, aluminum, copper, iron, and stainless steel can be used. Of these, aluminum or copper is preferably used from the viewpoint of thermal conductivity. Moreover, as the cool storage agent T, the well-known thing (for example, the cool storage agent described in Unexamined-Japanese-Patent No. 4-23883) generally used for cooling trays can be used.

  As shown in FIGS. 1-3, the cool storage agent container 1 is formed in the hollow long square box shape which has the upper wall 10, the lower wall 20, and the four peripheral walls 30. As shown in FIG. And the inside of the cool storage agent container 1 becomes a storage space for enclosing the cool storage agent T. The upper wall 10 of the cool storage agent container 1 is provided with a flat portion 11 that forms a central portion and a frame-shaped bulging portion 18 that forms a peripheral portion.

  A metal plate M is embedded in the flat portion 11 with the central portion of the upper surface exposed to the outside. As shown in FIG. 1B, the metal plate M has a rectangular shape as a whole, and a plurality of recesses M1 are formed in the peripheral portion. Each of the recesses M1 is formed in a groove shape (U shape) when viewed from above, and is formed at equal intervals.

  As shown in FIG. 2A, the upper surface peripheral portion of the metal plate M is covered with the upper surface support portion 12 of the flat portion 11. The upper surface support portion 12 supports the peripheral portion of the metal plate M from the upper surface side, thereby preventing the metal plate M from being detached from the upper wall 10. Further, by providing the metal plate M with the concave portion M1, the upper surface support portion 12 has a portion (non-covered portion 14) that does not cover the metal plate M according to the formation position of the concave portion M1 of the metal plate M at a predetermined interval. A plurality of them are formed. That is, the upper surface support portion 12 is located on the concave portion M1 of the metal plate M and is located on a portion other than the non-covered portion 14 that does not cover the metal plate M and the concave portion M1 on the periphery of the metal plate M. It is comprised by the alternately arrange | positioning the coating | coated part 13 which coat | covers.

  As shown in FIG. 2 (b), the covering portion 13 has a U-shaped cross section along a recessed portion formed between the inner surface of the blow mold and the peripheral portion of the metal plate M during insert blow molding. It is formed so as to enter the recessed portion while being stretched. Therefore, the covering portion 13 is formed in a two-layer structure having a U-shaped cross section in which thin layers overlap each other. On the other hand, as shown in FIG.2 (c), the non-coating part 14 is formed in a one-layer structure at the time of insert blow molding.

  Further, the exposed portion on the upper surface of the metal plate M and the covering portion covered with the upper surface support portion 12 and the boundary are determined by the position of the inner edge 12 a of the upper surface support portion 12. As shown in FIG. 2A, in this embodiment, the position of the inner edge 12a of the upper surface support portion 12 is set to be on the bottom surface M1a of each recess M1 of the metal plate M. That is, the inner end edge 12a of the upper surface support portion 12 and the bottom surface M1a of the concave portion M1 of the metal plate M are configured to overlap in the thickness direction of the regenerator container 1. In this case, the upper surface support portion 12 covers only a portion located outside the bottom surface M1a of the recess M1 in the peripheral portion of the metal plate M.

  As shown in FIGS. 2B and 2C, the lower surface of the metal plate M is covered with the lower surface support portion 15, and the side surface of the metal plate M is covered with the side surface support portion. The side support part includes a first side support part 16 and a second side support part 17. As shown in FIG. 2B, the first side surface support portion 16 is a portion that covers the outer surface M2 of the side surface of the metal plate M, and the upper surface support portion 12 and the lower surface support portion 15 along the outer surface M2. And connect. The outer surface M2 of the metal plate M means a portion of the side surface of the metal plate M excluding the inner surface of the recess M1. Further, as shown in FIG. 2 (c), the second side surface support portion 17 is a portion that covers the inner surface of the recess M1 in the side surface of the metal plate M, and the upper surface support portion 12 and the lower surface support along the inner surface. The unit 15 is connected. The side surface support portion composed of the first side surface support portion 16 and the second side surface support portion 17 is formed in a meandering shape in a top view according to the uneven shape of the side surface of the metal plate M as a whole.

  In the present embodiment, the portions formed along the side surface M1b of the recess M1 in the first side surface support portion 16 and the second side surface support portion 17 are formed continuously with the cover portion 13, and The lower edge and the lower surface support part 15 are connected. And the part formed along the bottom face M1a of the recessed part M1 in the 2nd side surface support part 17 is formed continuously with the non-covering part 14, and the edge inside the non-covering part 14, ie, the upper surface support part 12, is formed. The inner edge 12a and the lower surface support part 15 are connected.

  As shown in FIGS. 1 and 4, the frame-shaped bulging portion 18 located around the flat portion 11 in the upper wall 10 is formed to bulge upward from the flat portion 11. A housing space is also formed inside the bulging portion 18, and the housing space in the bulging portion 18 is formed so as to reach an upper side than the lower surface support portion 15.

  As shown in FIGS. 3 and 4, the lower wall 20 of the cool storage agent container 1 is provided with a plurality of first truncated cone-shaped restricting portions 21 that bulge toward the upper wall 10 side. The first restricting portion 21 is formed integrally with the lower surface support portion 15 by having the tip surface 21 a fused to the lower surface support portion 15 of the upper wall 10. In the present embodiment, eight first restricting portions 21 are provided in two rows, four each along the long side of the lower surface support portion 15. And the front end surface 21a of each 1st control part 21 is melt | fused with respect to the connection site | part with the 2nd side surface support part 17 in the lower surface support part 15. As shown in FIG. The 1st control part 21 suppresses deformation | transformation of the cool storage agent container 1, such as expansion deformation and curvature. In addition, illustration of the 1st control part 21 is abbreviate | omitted in FIG.2 (b), (c).

  As shown in FIGS. 3 and 4, at the center portion of the lower wall 20, a ridge-shaped second restricting portion 22 that bulges toward the upper wall 10 and extends in the longitudinal direction is provided. The second restricting portion 22 suppresses bending and twisting of the lower wall 20.

  As shown in FIG. 1, the peripheral wall 30 of the cool storage agent container 1 is provided with an inlet 31 for injecting the cool storage agent T into the accommodation space. The injection port 31 is sealed after the cold storage agent T is injected into the accommodation space. In addition, illustration of the cool storage agent T is abbreviate | omitted in FIG.2 and FIG.3.

Next, operational effects in the present embodiment will be described below.
(1) Since the metal plate M is embedded in the cooling tray of this embodiment in a state where a part of the upper surface is exposed to the outside in the upper wall 10 of the regenerator container 1, the upper wall 10 is a metal plate. The state is reinforced by M. Therefore, even when a force for deforming the cool storage agent container 1 is applied during freezing and expansion of the cool storage agent T, the deformation of the upper wall 10 is suppressed, and the adhesion between the upper wall 10 and the metal plate M is suitable. Secured.

  Moreover, when the said structure is employ | adopted, compared with the conventional structure which adhere | attaches the metal plate M on the cool storage agent container 1 simply, it becomes difficult to enter refuse between the metal plate M and the cool storage agent container 1. FIG. The advantage is obtained. Furthermore, in the conventional structure which arrange | positions the metal plate M on the cool storage agent container 1, in order to improve safety, it was necessary to perform the edge part process which rounds the edge part of the metal plate M, but in this embodiment, Since the end of the metal plate M is covered with the upper wall 10, it is not necessary to perform the end processing of the metal plate M as in the conventional case. Further, by forming the cool storage agent container 1 by insert blow molding, a parting part between the metal plate M and the upper wall 10 can be formed beautifully.

  (2) The upper surface support portion 12, the lower surface support portion 15, and the side surface support portions 16 and 17 are formed on the upper wall 10, and the metal plate M is supported in the upper wall 10 from the upper, lower, and lateral directions. It is configured as follows. Therefore, it is difficult for the metal plate M to be peeled off (removed) from the cool storage agent container 1.

  (3) A plurality of concave portions M1 are formed in the peripheral portion of the metal plate M, and a first side surface support portion 16 that covers the outer side surface M2 of the metal plate M as a side surface support portion of the upper wall 10, and a concave portion of the metal plate M The 2nd side surface support part 17 which covers the inner surface of M1 is provided. In addition to the first side surface support portion 16 along the outer side surface M2 of the metal plate M, by providing the second side surface support portion 17 along the inner surface of the concave portion M1 of the metal plate M, the side surface support portion has a meandering shape as viewed from above. It becomes. Therefore, the support length of the side surface support part that covers the side surface of the metal plate M can be secured longer, and the support strength of the metal plate M is improved accordingly.

  Further, if the side surface support portion has the meandering shape, the side surface support portion as a whole connects the upper surface support portion 12 and the lower surface support portion 15 with a predetermined width corresponding to the meandering width. Thereby, the deformation | transformation of the upper surface support part 12 with respect to the lower surface support part 15 can be suppressed effectively. Examples of the deformation of the upper surface support portion 12 with respect to the lower surface support portion 15 include a tilt deformation of the upper surface support portion 12 with a connection portion between the upper surface support portion 12 and the first side surface support portion 16 as a fulcrum. Such tilt deformation is likely to occur when a force pressing the upper surface support portion 12 against the lower wall 20 side from above is applied to the outer peripheral portion of the upper surface support portion 12 during cleaning of the cooling tray or the like.

  Specifically, as shown by an arrow in FIG. 2B, when a force pressing the upper surface support portion 12 against the lower wall 20 is applied from above, the connection between the upper surface support portion 12 and the first side surface support portion 16 is established. Using the portion as a fulcrum, the inner edge 12a side of the upper surface support portion 12 is lifted, and the entire upper surface support portion 12 is deformed to be inclined. If the tilting deformation of the upper surface support portion 12 becomes large, the metal plate M may be detached from the upper wall 10. In the insert blow molded product, since the covering portion 13 of the upper surface support portion 12 is formed in a thin U-shaped cross section, and the side surface support portion is connected only to the lower layer side, such tilt deformation is particularly likely to occur.

  Here, as described above, when the side support portion is formed with a predetermined meandering width as a whole, that is, when the second side support portion 17 is formed inside the first side support portion 16, the second side support portion is formed. In the formation part of the part 17, the space | interval of the upper surface support part 12 and the lower surface support part 15 will be in the fixed state. Therefore, even if the upper surface support portion 12 is tilted with the connecting portion between the upper surface support portion 12 and the first side surface support portion 16 as a fulcrum, the second side surface support portion 17 is connected to the inner portion of the upper surface support portion 12 and the lower surface support portion 15. Is kept constant, the tilting of the upper surface support portion 12 is restricted.

  Even if tilting deformation of the upper surface support portion 12 occurs, the connection positions of the first side surface support portion 16 and the second side surface support portion 17 that connect the upper surface support portion 12 and the lower surface support portion 15 are side surface support. Since they are different from each other in the direction orthogonal to the extending direction of the entire portion, the force that tilts and deforms the upper surface support portion 12 is difficult to propagate along the side surface support portion. Therefore, even if a force that tilts and deforms the upper surface support portion 12 is applied partially, the upper surface support portion 12 is prevented from being tilted and deformed over a wide range.

  (4) The inner edge 12 a of the upper surface support portion 12 is set at a position that overlaps the bottom surface M 1 a of the concave portion M 1 of the metal plate M in the thickness direction of the cool storage agent container 1. According to the said structure, the formation position of the coating | coated part 13 in the upper surface support part 12 is limited only to the part located outside the bottom face M1a of the recessed part M1 in the upper surface peripheral part of the metal plate M, and is located inside the recessed part M1. The covering portion 13 is not formed. As shown in FIG. 2 (b), the covering portion 13 is stretched to have a U-shaped cross section and is formed thin, and the strength tends to decrease. Therefore, the covering portion 13 is limitedly provided as described above. Thereby, the strength reduction of the upper surface support part 12 resulting from forming the site | part can be suppressed.

  Further, when the inner edge 12a of the upper surface support portion 12 is set at a position overlapping the bottom surface M1a of the concave portion M1 of the metal plate M in the thickness direction of the regenerator container 1, the inner edge 12a of the upper surface support portion 12 is used. And the lower surface support portion 15 are connected by the second side surface support portion 17. By fixing the distance between the upper surface support portion 12 and the lower surface support portion 15 at the inner edge 12a of the upper surface support portion 12, the tilt deformation of the upper surface support portion 12 can be more reliably suppressed.

  (5) The lower wall 20 is provided with a first restricting portion 21 that bulges toward the upper wall 10 and whose front end surface 21 a is fused to the lower surface support portion 15. This 1st control part 21 suppresses deformation | transformation of the cool storage agent container 1, such as expansion deformation and curvature.

  In other words, the state in which the cool storage agent container 1 is expanded and deformed can be said to be a state in which the interval between the upper wall 10 and the lower wall 20 of the cool storage agent container 1 is partially or entirely expanded. Such expansion deformation of the regenerator container 1 is caused, for example, by an increase in the internal pressure of the accommodation space when the regenerator T is frozen and expanded, and a force that causes the upper wall 10 and the lower wall 20 to expand outwardly acts. . Here, the first restricting portion 21 keeps the distance between the upper wall 10 and the lower wall 20 constant against the force of inflating the upper wall 10 and the lower wall 20 outward. 10 and the deformation | transformation of the lower wall 20 are controlled, and the expansion deformation of the cool storage agent container 1 is suppressed.

  Moreover, the state where the cool storage agent container 1 warps can be said to be a state where the interval between the upper wall 10 and the lower wall 20 of the cool storage agent container 1 is partially narrowed. Such warpage of the cool storage agent container 1 is caused by, for example, the action of a force that draws the upper wall 10 and the lower wall 20 inward by contraction of the synthetic resin when the cool storage agent container 1 is cooled after molding. In particular, when the metal plate M is embedded in the upper wall 10, a synthetic resin (synthetic resin located around the metal plate M) that is supported by the metal plate M to suppress shrinkage and a shrinkage located in other parts. A difference in the degree of shrinkage occurs between the resin and the synthetic resin that is not suppressed. The difference in the degree of shrinkage is a major factor that causes warping and distortion of the cool storage agent container 1. Here, the first restricting portion 21 keeps the distance between the upper wall 10 and the lower wall 20 constant against the force that pulls the upper wall 10 and the lower wall 20 inward, so that the upper wall 10 and the lower wall 20 are kept constant. The deformation of the wall 20 is restricted, and the warp of the cool storage agent container 1 is suppressed.

  (6) The 1st control part 21 is formed so that the front end surface 21a may be fused by the connection part with the 2nd side surface support part 17 in the lower surface support part 15. FIG. Thereby, the intensity | strength of the 2nd side surface support part 17 increases, and the suppression effect of the tilting deformation of the upper surface support part 12 can be improved.

  (7) As a method for suppressing deformation of the regenerator agent container 1 during freezing and expansion of the regenerator agent T, a method of providing a space portion as an expansion allowance that allows an expansion during freezing expansion in the regenerator agent container 1 in advance. A method of setting the filling rate of the cool storage agent T in the liquid state to the cool storage agent container 1 to less than 100% is conceivable. However, when such a method is adopted, a non-contact portion (space portion) is generated between the upper wall 10 of the cool storage agent container 1 and the cool storage agent T when the cool storage agent T is frozen, and the upper wall 10 and the cool storage agent T are There is a possibility that the thermal conductivity between them will be lowered.

  In the present invention, a bulging portion 18 that bulges upward from the lower surface support portion 15 is formed on the upper wall 10. Therefore, as shown in FIG. 4, the regenerator T in the liquid state is left in the bulging portion 18 so as to leave a space portion serving as the expansion allowance S and the liquid level is positioned higher than the lower surface support portion 15. Can be enclosed in the regenerator container 1. When the cool storage agent T is sealed in this manner, a non-contact portion (space portion) generated between the upper wall 10 and the cool storage agent T is formed in the bulging portion 18 when the cool storage agent T is frozen. That is, the lower surface support portion 15 located on the lower side of the metal plate M and the cold storage agent T can be brought into full contact. Therefore, while obtaining the deformation suppression effect of the cool storage agent container 1 by providing the expansion allowance S in the cool storage agent container 1, the thermal conductivity among the metal plate M, the lower surface support portion 15, and the cool storage agent T is suitably secured. can do.

  In addition, this embodiment can also be changed and embodied as follows. Moreover, it is also possible to change the said embodiment like the structure of the combination of the following modification example mutually.

  -The shape of the recessed part M1 of the metal plate M is not specifically limited. For example, it may be a polygonal shape such as a pentagonal shape or a hexagonal shape when viewed from above, or may be a semicircular shape. The bottom surface M1a of the recess M1 means the deepest portion in the recess M1 or a peripheral portion including the same, and the deepest portion of the recess M1 is a straight line that is not necessarily perpendicular to the depth direction of the recess M1. It does not have to be in the shape.

-The formation number of the recessed part M1 formed in the metal plate M, and the space | interval between several recessed parts M1 are not specifically limited. Moreover, you may form the recessed part M1 in the corner part of the metal plate M. FIG.
-You may provide the retaining part which narrows the distance between the side surfaces M1b which opposes in the side surface M1b of the recessed part M1 of the metal plate M rather than the bottom face M1a side. For example, as shown in FIG. 5A, the side surface M1b of the recess M1 is formed so that the width gradually decreases from the bottom surface M1a side toward the opening side, and the inclined portion of the side surface M1b is used as a retaining portion. Also good. Moreover, as shown in FIG.5 (b), the protrusion M1c which protrudes inward may be provided in the side surface M1b of the recessed part M1, and this is good also as a retaining part. By providing the retaining portion, when the metal plate M is about to come off from inside the upper wall 10, the retaining portion and the second side support portion 17 are caught. Thereby, it can control that metal plate M removes from upper wall 10.

  -You may set the position of the inner side edge 12a of the upper surface support part 12 outside the bottom face M1a of the recessed part M1 in the thickness direction of the cool storage agent container 1, as shown to Fig.6 (a). Even in this case, the same effects as those of the above embodiment can be obtained. Further, as shown in FIG. 6 (b), it may be set inside the bottom surface M1a of the recess M1.

  -The shape of the 1st control part 21 is not specifically limited, For example, you may form in a truncated pyramid shape, and may form in the protrusion shape extended in the longitudinal direction of the lower wall 20, or a transversal direction. . Further, the number of the first restricting portions 21 is not particularly limited, and may be 7 or less, or 9 or more. Furthermore, you may abbreviate | omit the 1st control part 21. FIG.

-The position which provides the 1st control part 21 is not specifically limited, You may provide the 1st control part 21 in site | parts other than the connection site | part with the 2nd side surface support part 17 in the lower surface support part 15. FIG.
-The enclosure state of the cool storage agent T is not specifically limited, For example, in the liquid state, you may enclose so that a liquid level may be located in a position lower than the lower surface of the lower surface support part 15. FIG.

  -The shape of the bulging part 18 and the formation position of the bulging part 18 in the upper wall 10 are not specifically limited. For example, the shape of the bulging portion 18 may be formed in a U shape, an L shape, or an I shape in plan view and may be adjacent to the plane portion 11. Further, the bulging portion 18 may be omitted.

The cooling tray of the present embodiment may be used as a cold insulating material, for example, stored in a cold insulating container (for example, a cooler box) used for transporting or storing an article requiring cold storage.
Next, a technical idea that can be grasped from the above embodiment and another example will be described.

(A) The cooling tray is fixed to the connecting portion of the lower surface support portion with the second side surface support portion.
(B) A cold storage container made of synthetic resin that has a hollow box shape and is formed by insert blow molding, and a metal plate having a plurality of recesses in the periphery in the upper wall thereof, with a part of the upper surface facing outside The upper wall is embedded in an exposed state, and the upper wall covers an upper surface support portion that covers a peripheral portion of the upper surface of the metal plate, a lower surface support portion that covers a lower surface of the metal plate, a side surface of the metal plate, and the upper surface A side support portion connecting the support portion and the lower surface support portion, the side support portion covering the outer side surface of the metal plate and the second side surface covering the inner surface of the recess of the metal plate. A cold storage agent container comprising a side support portion.

M ... Metal plate, T ... Cold storage agent, M1 ... Recess, M1a ... Bottom surface, M1b ... Side surface, M2 ... Outer surface, 1 ... Cold storage agent container, 10 ... Upper wall, 12 ... Upper surface support, 12a ... Inner edge, DESCRIPTION OF SYMBOLS 13 ... Cover part, 14 ... Non-cover part, 15 ... Lower surface support part, 16 ... 1st side surface support part, 17 ... 2nd side surface support part, 21 ... 1st control part.

Claims (4)

A cooling tray in which a cold storage agent is enclosed in a cold storage container made of synthetic resin in a hollow box shape,
The cold storage agent container is formed by insert blow molding with a metal plate embedded in the upper wall,
The metal plate is provided with a plurality of recesses on the periphery, and is embedded in the upper wall with a part of the upper surface exposed to the outside,
The upper wall connects the upper surface support portion and the lower surface support portion while covering the side surface of the metal plate, the upper surface support portion covering the upper surface peripheral portion of the metal plate, the lower surface support portion covering the lower surface of the metal plate, And a side support part
The cooling tray according to claim 1, wherein the side surface support portion includes a first side surface support portion that covers an outer surface of the metal plate and a second side surface support portion that covers an inner surface of the concave portion of the metal plate. The inner end edge of the upper surface support portion is located at a position overlapping the bottom surface of the concave portion of the metal plate or outside the bottom surface of the concave portion in the thickness direction of the regenerator container. Cooling tray. The side surface of the recessed part of the said metal plate is provided with the retaining part formed so that the distance between opposing side surfaces might be narrower than the bottom face side, The Claim 1 or Claim 2 characterized by the above-mentioned. Cooling tray. 2. A restriction part, wherein a distal end is fixed to the lower surface support part and a base end is fixed to the lower wall, is provided between the lower surface support part and the lower wall. Item 4. The cooling tray according to any one of items 3.

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