Storage tray

Abstract

To provide a storage tray with improved holding properties for stored items.SOLUTION: A storage tray 10 can hold a plurality of stored thereon, and a storage recess 14, which is concave at its center, is formed in a storage area corresponding to one stored item. The storage recess 14 is composed of a plurality of inclined surfaces 112 that are separated from each other and are flexible.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a storage tray on which a plurality of items to be stored (such as fruits) can be placed and which is used for transporting the items to be stored.

Background Art

[0002] Conventionally, a storage tray used for transporting fruits such as strawberries has been expected to be stable during transportation by placing the fruits in depressions similar to the shape of the fruits. Patent Document 1 discloses a tray having such depressions and made of an elastic and flexible foamed resin sheet (storage tray).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the packaging tray of Patent Document 1, the surface of the depression (that is, the placement surface of the fruit) is formed by a single continuous concave surface. Also, since fruits come in various shapes and sizes, this depression needs to be made larger than the actual ones. For this reason, a gap is likely to occur between the depression and the surface of the fruit, and this gap reduces the adhesion between the depression of the tray and the fruit (the contact area becomes smaller).

[0005] When the adhesion between the depression and the fruit is low, the holding property of the fruit in the tray becomes low, and due to vibrations during transportation, the fruit is likely to bounce on the tray or rotate within the depression. As a result, problems such as direct damage to the fruit caused by bouncing and frictional scratches with the tray surface caused by rotation occur in the fruit.

[0006] The present disclosure has been made in view of the above problems, and an object thereof is to provide a storage tray with improved retention of the stored items.

Means for Solving the Problems

[0007] In order to solve the above problems, the storage tray of the present disclosure is a storage tray on which a plurality of stored items can be placed, and in a placement area corresponding to one stored item, a storage recess with a recessed central portion is formed. The storage recess is characterized in that it is composed of a plurality of placement surfaces that are separated from each other in area and have flexibility.

[0008] According to the above configuration, since the storage recesses on which the stored items are placed are composed of a plurality of placement surfaces that are separated from each other in area, it becomes easier for optimal deformation along the surface of the stored item to occur on each placement surface, and the retention of the stored item is improved. As a result, it is possible to suppress the bouncing and rotation of the stored item due to vibrations during transportation, etc., and prevent scratches on the surface of the stored item.

[0009] Further, a plurality of protrusions standing upward from the bottom surface of the tray are formed on the above storage tray, and the placement surface can be configured to be included in the protrusions.

[0010] According to the above configuration, the protrusions can be made to have vibration absorption properties, and the bouncing and rotation of the stored item can be effectively suppressed.

[0011] Further, in the above storage tray, the placement surface can be configured to be an inclined surface that is low inside the storage recess and becomes higher toward the outside.

[0012] Further, the above storage tray can be configured to be provided with a non-placement portion where the placement surface does not exist at the center of the storage recess.

[0013] According to the above configuration, due to the existence of the non-placement portion, the stored item does not come into contact with the bottom surface of the tray, and it is possible to prevent vibrations during transportation from being transmitted from the bottom surface of the tray to the stored item.

[0014] Further, the storage tray can be configured such that the plurality of placement surfaces have the same shape.

[0015] Further, the storage tray has an upper tray on which an object to be stored is directly placed and which has the protrusions, and a lower tray disposed below the upper tray. The lower tray can be configured to have a convex portion that contacts the top of the protrusion from below and does not contact the placement surface of the protrusion.

[0016] According to the above configuration, the lower tray can maintain the shape of the entire storage tray without inhibiting the deformation of the placement surface when the upper tray holds the fruit.

[0017] Further, the storage tray can be configured to have an opening provided in the non-placement portion.

[0018] Further, the storage tray can be configured to be provided with a plurality of support portions that support the lower portions of the plurality of placement surfaces.

[0019] Further, the storage tray has the storage recess and the support portion, and includes an upper tray on which an object to be stored is directly placed, and a lower tray disposed below the upper tray and having a base portion that supports the support portion from below.

[0020] Further, the storage tray has the storage recess, and can be configured to include an inner tray on which an object to be stored is directly placed, and an outer tray having an open top and accommodating the inner tray therein.

Advantages of the Invention

[0021] The storage tray of the present disclosure has an effect of preventing the surface of the object to be stored from being scratched by vibration or the like during transportation by improving the holding property of the object to be stored.

Brief Description of the Drawings

[0022]

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Mode for Carrying Out the Invention

[0023] 〔First Embodiment〕 Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. FIG. 1 is a plan view of a storage tray 10 according to the first embodiment. FIG. 2 is a perspective view showing a partially enlarged view of the storage tray 10. The storage tray 10 of the present disclosure can place a plurality of objects C to be stored, and is suitable for transporting the objects C (such as fruits) whose surfaces are easily damaged. In the following description, fruits (such as strawberries) are exemplified as the objects C to be stored.

[0024] As shown in FIGS. 1 and 2, the storage tray 10 is formed with a plurality of protrusions 11 standing upright upward from the bottom surface 13 of the tray, and these plurality of protrusions 11 are regularly arranged. One protrusion 11 has a substantially square shape in plan view, has a ridge line 111 at the uppermost part, and has inclined surfaces 112 on both sides sandwiching the ridge line 111. The inclined surface 112 is a substantially triangular surface, and is inclined so as to become lower as it moves away from the ridge line 111, and the width becomes narrower as it moves away from the ridge line 111. On both sides of each inclined surface 112, side surfaces 113 which are substantially triangular surfaces are formed. Each side surface 113 connects between each inclined surface 112 and the bottom surface of the storage tray 10. Note that the plurality of protrusions 11 formed on the storage tray 10 are basically of the same shape, but the protrusion 11 formed on the outermost periphery of the storage tray 10 may exceptionally have only one inclined surface 112.

[0025] The storage tray 10 has a substantially rectangular shape in plan view. When the long side direction is the X direction and the short side direction is the Y direction, the protrusions 11 formed on the storage tray 10 include two types: a protrusion 11A with a ridge line 111 parallel to the X direction and a protrusion 11B with a ridge line 111 parallel to the Y direction. Also, as an example of the arrangement of the protrusions 11, as shown in FIG. 1, the same type of protrusions 11 are arranged in a row along the X direction, and the rows of protrusions 11A and the rows of protrusions 11B are alternately arranged along the Y direction. Further, when viewed along the Y direction, one protrusion 11B (or protrusion 11A) is arranged between two adjacent protrusions 11A (or protrusion 11B) in the X direction. That is, the protrusions 11A and the protrusions 11B are arranged in a staggered pattern along the Y direction.

[0026] In the storage tray 10 where the protrusions 11 are arranged as described above, a large number of regions R (placement regions) surrounded by four protrusions 11 are formed, and one region R includes four inclined surfaces 112. These four inclined surfaces 112 are arranged radially in four directions from the center of the region R to form a concave storage recess 14 that is lower on the inside and higher towards the outside. Also, in the region R, since the four inclined surfaces 112 are included in each of the four protrusions 11, a groove portion 12 is formed between two adjacent inclined surfaces 112. Due to this groove portion 12, the four inclined surfaces 112 constituting the storage recess 14 are discontinuous.

[0027] In the storage tray 10, one fruit is placed on one region R, and the placed fruit is accommodated in the storage recess 14 formed by the four inclined surfaces 112. That is, the fruit placed on the storage tray 10 contacts the four inclined surfaces 112, and the four inclined surfaces 112 serve as the placement surface of the fruit in the storage recess 14.

[0028] The storage tray 10 is formed of a flexible resin material. When fruits are placed in the region R, deformation occurs at the protrusions 11 due to the weight of the fruits. At this time, since the contact between the fruits and the protrusions 11 occurs on the inclined surfaces 112, deformation along the surface of the fruits occurs on the inclined surfaces 112. The four inclined surfaces 112 are regionally separated from each other (discontinuous) by the presence of the groove portions 12 therebetween, and the deformation occurring on one inclined surface 112 does not spread to the other inclined surfaces 112. As a result, optimal deformation along the surface of the fruits is likely to occur on each inclined surface 112, and the adhesion with the fruits placed in the region R is increased (the contact area is increased). Incidentally, as the resin material of the storage tray 10, PE (polyethylene), PVC (polyvinyl chloride), TPU (thermoplastic polyurethane), PS (polystyrene), PET (polyethylene terephthalate), etc. can be preferably used. The storage tray 10 made of these materials can be formed by vacuum forming, pressure air forming, or the like.

[0029] In this way, the storage tray 10 has high fruit retention due to high adhesion with the fruits in the region R, and can suppress the fruits from bouncing on the tray or rotating within the depressions due to vibrations during transportation. As a result, the storage tray 10 can prevent direct damage to the stored fruits caused by bouncing and frictional scratches with the tray surface caused by rotation. Incidentally, when vibrations occur in the fruits during transportation, the side surfaces 113 and the peripheral portions of the inclined surfaces 112 (regions not in contact with the fruits) serve as vibration absorbing portions. That is, the protrusions 11 have vibration absorption properties, so that the bouncing and rotation of the fruits can be effectively suppressed.

[0030] FIG. 3 is a partial cross-sectional view (sectional view taken along line A-A in FIG. 1) of a storage tray 10A which is an example of a configuration of the storage tray 10. The storage tray 10A is composed of a single resin plate 100 in which a protrusion 11 is formed by die molding. In the storage tray 10A, the resin plate 100 is preferably formed of a resin material having relatively high elasticity (at least higher elasticity than the storage tray 10B described later). In the storage tray 10A, due to the high elasticity of the resin plate 100, it is possible to suppress the protrusion 11 from being excessively crushed when the fruit is placed, and the fruit can be held well by the protrusion 11.

[0031] FIG. 4 is a partial cross-sectional view (sectional view taken along line A-A in FIG. 1) of a storage tray 10B which is another example of a configuration of the storage tray 10. The storage tray 10B is composed of a resin plate 100 in which a protrusion 11 is formed by die molding and a flat resin plate 101 attached to the back surface side of the resin plate 100. An air layer S filled with air is formed below the protrusion 11 in the storage tray 10B. In the storage tray 10B, the resin plate 100 (and the resin plate 101) is preferably formed of a resin material having relatively low elasticity and high flexibility. In the storage tray 10B, even when the elasticity of the resin plate 100 is low, the presence of the air layer S suppresses the protrusion 11 from being excessively crushed, so that the fruit can be held well by the protrusion 11. Further, due to the high flexibility of the resin plate 100, the inclined surface 112 is likely to deform along the surface of the fruit, and the holding of the fruit by the protrusion 11 becomes even better. In addition, the storage tray 10B has the advantage of cost reduction by using a vinyl resin as a material.

[0032] In addition, in the present embodiment, in the protruding portion 11, a vertical surface 114 (see FIG. 3) is provided adjacent to the inner peripheral side tip of the inclined surface 112. By forming the vertical surface 114 on the protruding portion 11, the inclined surface 112 is in a state of rising from the bottom surface of the storage tray 10, and a non-placement portion 115 (see FIGS. 2 and 3) where there is no fruit placement surface exists at the center of the region R (that is, the storage recess 14). Due to the existence of this non-placement portion 115, the fruit does not come into contact with the bottom surface of the storage tray 10, and it is possible to prevent the vibration during conveyance from being transmitted from the bottom surface of the storage tray 10 to the fruit. Also, the fruit placed in the storage recess 14 can surely come into contact with the inclined surface 112, and the fruit can be held more surely.

[0033] 〔Second Embodiment〕 In the storage tray 10 of the first embodiment, one protruding portion 11 is formed across two regions R, and two inclined surfaces 112 are provided on one protruding portion 11. In this way, when the shape is such that one protruding portion 11 is shared by two regions R, the occupied area of one protruding portion 11 in plan view can be increased, and the protruding portion 11 can be formed stably. However, the shape of the protruding portion in the present invention is not limited to the shape of the protruding portion 11 described above.

[0034] FIG. 5 is a plan view of a storage tray 20 according to the second embodiment. FIG. 6 is a perspective view showing a partially enlarged view of the storage tray 20. As shown in FIGS. 5 and 6, in the storage tray 20, instead of the protruding portion 11 in the storage tray 10, a protruding portion 21 is formed.

[0035] The protruding portion 21 has a shape in which the protruding portion 11 is divided into two by a groove portion (corresponding to the groove portion 24 in FIG. 5) along the ridge line 111. That is, the two protruding portions 21 in the storage tray 20 correspond to one protruding portion 11 in the storage tray 10. In the storage tray 20, one inclined surface 211 is formed on one protruding portion 21, and one protruding portion 21 is formed corresponding to only one region R.

[0036] 〔Third Embodiment〕 FIG. 7 is a cross-sectional view of the storage tray 30 according to the third embodiment. As shown in FIG. 7, the storage tray 30 is configured by stacking an upper tray 31 and a lower tray 32 in two upper and lower stages. The upper tray 31 is a tray on which fruits are directly placed, and the storage tray 10 described in the first embodiment or the storage tray 20 described in the second embodiment can be used as it is.

[0037] The lower tray 32 is disposed below the upper tray 31 and is used to maintain the shape of the entire storage tray 30. For this reason, the lower tray 32 preferably has flexibility and appropriate rigidity (elasticity), and for example, is preferably formed of a foamed polyethylene sheet. Alternatively, the lower tray 32 can also obtain appropriate rigidity (elasticity) by using a sheet having a greater thickness than the upper tray 31. In this case, PVC (polyvinyl chloride), TPU (thermoplastic polyurethane), PS (polystyrene), PET (polyethylene terephthalate), etc. can also be used as materials.

[0038] The lower tray 32 has a shape having a bottom surface 321 and a convex portion 322. The shape of the convex portion 322 is designed in accordance with the shape of the protruding portions 11 and 21 in the upper tray 31, that is, the storage trays 10 and 20. Specifically, when the upper tray 31 and the lower tray 32 are overlapped so that the bottom surface 321 of the lower tray 32 contacts the bottom surface of the upper tray 31, the convex portion 322 contacts the top of the protruding portions 11 and 21 from below, and the side surface of the convex portion 322 does not contact the fruit placement surface (inclined surfaces 112 and 211) of the protruding portions 11 and 21. Thereby, the convex portion 322 of the lower tray 32 supports the protruding portions 11 and 21 of the upper tray 31 and does not inhibit the deformation of the placement surface when the upper tray 31 holds the fruits.

[0039] [Fourth Embodiment] In the following [Fourth Embodiment] to [Eighth Embodiment], preferred examples of the storage tray capable of measuring the sugar content of the placed fruits will be described. FIG. 8 is a perspective view of the storage tray 40 according to the fourth embodiment. FIG. 9 is a perspective view of the storage tray 40 as viewed from the back side.

[0040] As shown in FIG. 8, in the placement area corresponding to one fruit, the storage tray 40 is formed with a storage recess 41 having a recessed central portion. The storage recesses 41 are separated from each other by groove portions 42 and are constituted by a plurality of flexible placement surfaces. In the present embodiment, by using a flexible food sponge material as the material of the storage tray 40, the placement surfaces of the storage recess 41 are made flexible. Examples of the food sponge material include food-grade silicone sponge, EPDM (ethylene propylene diene rubber) sponge, neoprene sponge, urethane sponge, PE (polyethylene) sponge, and PP (polypropylene) sponge. The storage tray 40 formed of such a food sponge material can be formed by molding, and it is also possible to use a resin mold in the molding process. Since the resin mold has a lower material cost and is easier to process than a metal mold, the cost of mold production can be suppressed.

[0041] Further, in the storage tray 40, the center of the storage recess 41 is a non-placement portion where there is no placement surface, and an opening 43 is provided in this non-placement portion. In FIG. 8, the number of the storage recesses 41 is set to nine for simplicity of illustration, but the number of the storage recesses 41 is not particularly limited.

[0042] In the storage tray 40, by providing the opening 43 at the center of the storage recess 41, it becomes easier to measure the sugar content of the fruit placed on the storage tray 40. As a specific example, the storage tray 40 on which the fruit is placed is placed on a transport table having an opening corresponding to the opening 43, measurement light (for example, near-infrared light) is irradiated upward from a light projecting unit disposed below the transport table, and the measurement light transmitted through the fruit is received and analyzed by a light receiving unit disposed above the storage tray 40, whereby the sugar content of the fruit can be measured. At this time, since the measurement light is irradiated onto the fruit through the opening 43, the storage tray 40 does not interfere with the sugar content measurement, and the sugar content of the fruit placed on the storage tray 40 can be measured. Note that the positions of the light projecting unit and the light receiving unit may be reversed from the above example (the light projecting unit is above and the light receiving unit is below).

[0043] In addition, in order to improve the accuracy of the sugar concentration measurement, it is preferable that the storage tray 40 has light absorption characteristics with respect to the measurement light. In the present embodiment, since the storage tray 40 is made of a sponge material, that is, a porous body, it can have light absorption characteristics with respect to the measurement light. Further, the storage tray 40 may be colored with a color having high light absorption characteristics (for example, black). By having the storage tray 40 have light absorption characteristics with respect to the measurement light in this way, internal reflection of the measurement light can be suppressed, and highly accurate sugar concentration measurement can be expected.

[0044] In addition, as shown in FIG. 9, a plurality of support portions 44 are provided on the back surface of the storage tray 40. The support portions 44 are provided in a leg shape so as to be adjacent to the outside of the storage recess 41 with respect to each placement surface in the storage recess 41. By providing a plurality of support portions 44 on the back surface of the storage tray 40 in this way, each placement surface is supported from below by the support portions 44 (receives a load by the support portions 44), and vibration isolation characteristics during conveyance or the like can be maintained.

[0045] 〔Fifth Embodiment〕 FIG. 10 is a perspective view of a storage tray 50 according to the fifth embodiment. FIG. 11 is an exploded perspective view of the storage tray 50. FIG. 12 is a perspective view of an upper tray 50A, which is a part of the storage tray 50, viewed from the back side. As shown in FIGS. 10 and 11, the storage tray 50 has an upper tray 50A and a lower tray 50B, and is configured by stacking the upper tray 50A on the lower tray 50B. The upper tray 50A and the lower tray 50B can be formed of a food-use sponge material, similarly to the storage tray 40.

[0046] The upper tray 50A has a storage recess 51, a groove portion 52, and an opening 53, similarly to the storage recess 41, the groove portion 42, and the opening 43 of the storage tray 40. That is, fruits, which are the objects to be stored, are directly placed on the upper tray 50A.

[0047] Further, as shown in FIG. 12, a plurality of support portions 54 are provided on the back surface of the upper tray 50A. Similar to the support portion 44 of the storage tray 40, the support portion 54 is provided in a leg shape so as to be adjacent to the outside of the storage recess 51 with respect to each placement surface in the storage recess 51. Further, a recess 541 that is open on the back surface side of the upper tray 50A is formed in each support portion 54.

[0048] The lower tray 50B has a plurality of base portions 55 so as to face the support portions 54 of the upper tray 50A. When the upper tray 50A is placed on the lower tray 50B, the base portion 55 fits into the recess 541 in the support portion 54. At this time, as shown in FIG. 13, the recess 541 inside the support portion 54 is in a form of being placed on the base portion 55 of the lower tray 50B, but an appropriate space is provided between the recess 541 and the base portion 55, and the upper tray 50A itself is considered to be vibration-isolated.

[0049] Furthermore, the lower tray 50B has a plurality of openings 56 so as to correspond to the opening 53 of the upper tray 50A. Thereby, in the storage tray 50, when performing the sugar content measurement on the fruits placed on the storage tray 50, the measurement light is irradiated to the fruits through the openings 53 and 56.

[0050] The storage tray 50 in the present embodiment has a two-layer structure of the upper tray 50A and the lower tray 50B, so that it is easier to increase the rigidity of the entire tray compared to the storage tray 40 of the fourth embodiment, and it is easier to carry the storage tray 50 even when fruits are placed thereon.

[0051] 〔Sixth Embodiment〕 FIG. 14 is a perspective view of a storage tray 60 according to the sixth embodiment. FIG. 15 is an exploded perspective view of the storage tray 60. As shown in FIGS. 14 and 15, the storage tray 60 has an outer tray 60A and an inner tray 60B, and is configured by storing the inner tray 60B inside the outer tray 60A.

[0052] The outer tray 60A is formed in a box shape with an open top surface. The outer tray 60A preferably has a lightweight and appropriate rigidity, and is preferably formed of EPP (expanded polypropylene (styrofoam)), resin, paper (cardboard), or the like.

[0053] The inner tray 60B has a storage recess 61, a groove 62, and an opening 63, similar to the storage recess 41, the groove 42, and the opening 43 of the storage tray 40. That is, the fruit, which is the object to be stored, is directly placed on the inner tray 60B. The inner tray 60B can be formed of a food sponge material, similar to the storage tray 40. Note that the inner tray 60B shown in FIG. 15 exemplifies a configuration without legs on the back surface, but a support portion may be provided on the back surface, similar to the storage tray 40. That is, the inner tray 60B may have the same configuration as the storage tray 40. The inner tray 60B has a size that can be stored in the internal space (recess) of the outer tray 60A.

[0054] By adopting a structure in which the inner tray 60B is stored inside the outer tray 60A, the storage tray 60 in the present embodiment can easily increase the rigidity of the entire tray compared to the storage tray 40 of the fourth embodiment, and it is easier to carry the storage tray 60 even when fruits are placed thereon. In addition, the outer tray 60A in the present embodiment has a simpler material composition and lower cost compared to the lower tray 50B of the fifth embodiment, and it is easier to manage as a material.

[0055] Also, when the bottom surface of the outer tray 60A is transmissive to the measurement light in the sugar content measurement of the fruit, it is possible to perform the sugar content measurement on the fruit placed on the storage tray 60 (including the outer tray 60A). On the other hand, when the bottom surface of the outer tray 60A is not transmissive to the measurement light, or when unevenness that significantly reduces the measurement accuracy occurs in the transmitted light, etc., it is also possible to remove the outer tray 60A during the sugar content measurement and perform the sugar content measurement using only the inner tray 60B.

[0056] 〔Seventh Embodiment〕 FIG. 16 is a perspective view of a storage tray 70 according to the seventh embodiment. FIG. 17 is an exploded perspective view of the storage tray 70. As shown in FIGS. 16 and 17, the storage tray 70 has an outer frame 70A, a bottom plate 70B, and an inner tray 70C. In the storage tray 70, the outer frame 70A and the bottom plate 70B constitute an outer tray, and the inner tray 70C is housed inside this outer tray.

[0057] The outer frame 70A is the frame portion (side surface portion) of the box-shaped outer tray, and substantially the entire bottom surface of the outer tray is open. However, a flange portion 75 for placing the bottom plate 70B is formed along the outer peripheral edge of the opening portion. The outer frame 70A preferably has low weight and appropriate rigidity, and is preferably formed of EPP, resin, paper (cardboard), or the like.

[0058] The bottom plate 70B forms the bottom portion (bottom surface portion) of the outer tray. In addition, a plurality of openings 74 are provided in the bottom plate 70B. Similar to the storage tray 40, the bottom plate 70B can be formed of a material that retains the rigidity and light-shielding property capable of supporting the upper inner tray 70C.

[0059] The fruits, which are the objects to be stored, are directly placed on the inner tray 70C. The inner tray 70C may have the same configuration as the inner tray 60B. That is, the inner tray 70C is provided with storage recesses 71, groove portions 72, and openings 73 similar to the storage recess 61, groove portion 62, and opening 63 of the inner tray 60B. The opening 74 of the bottom plate 70B is provided corresponding to the opening 73 of the inner tray 70C.

[0060] Similar to the storage tray 60 of the sixth embodiment, the storage tray 70 in this embodiment has a structure in which the inner tray 70C is housed inside the outer tray (the outer frame 70A and the bottom plate 70B), which makes it easier to increase the rigidity of the entire tray and makes it easier to carry the storage tray 70 even when fruits are placed thereon.

[0061] Furthermore, by using the bottom surface of the outer tray as the bottom plate 70B and providing an opening 73 in the bottom plate 70B, the bottom surface of the outer tray does not interfere with the sugar concentration measurement, and it becomes possible to perform a sugar concentration measurement with higher accuracy than the storage tray 60. Also, the outer frame 70A enables nesting storage.

[0062] 〔Eighth Embodiment〕 FIG. 18 is a perspective view of a storage tray 80 according to the eighth embodiment. FIG. 19 is an exploded perspective view of the storage tray 80. As shown in FIGS. 18 and 19, the storage tray 80 has an outer frame 80A, a bottom plate 80B, and an inner tray 80C. In the storage tray 80, the outer frame 80A and the bottom plate 80B constitute an outer tray, and the inner tray 80C is housed inside this outer tray.

[0063] The outer frame 80A may have the same configuration as the outer frame 70A in the storage tray 70. That is, in the outer frame 80A, almost the entire bottom surface of the outer tray is open, and a flange portion 84 is formed along the outer peripheral edge of the opening portion.

[0064] The bottom plate 80B serves as the bottom portion (bottom surface portion) of the outer tray. Also, the bottom plate 80B is provided with a plurality of openings 82 and pedestal portions 83 formed so as to surround the four circumferential directions for each opening 82. The bottom plate 80B can be formed of a material that retains the rigidity and light-shielding property capable of supporting the inner tray 80C on the upper surface.

[0065] The fruits to be stored are directly placed on the inner tray 80C. The inner tray 80C may have the same configuration as the storage tray 10 (more specifically, the storage tray 10A) described in the first embodiment. That is, the inner tray 80C is provided with protrusions 81 and ridge lines 811 similar to the protrusions 11 and ridge lines 111 of the storage tray 10. Also, the inner tray 80C has high light transmittance with respect to the measurement light for sugar concentration measurement, for example, by being formed of a transparent resin.

[0066] In the storage tray 80, the tip of the base portion 83 of the bottom plate 80B contacts the ridge line 811 of the inner tray 80C, and the protrusion 81 can be supported from below. Thereby, in the storage tray 80, it is possible to suppress the protrusion 81 from being overly crushed when the fruit is placed.

[0067] Similar to the storage tray 60 of the sixth embodiment, the storage tray 80 in this embodiment has a structure in which the inner tray 80C is housed inside the outer tray (outer frame 80A and bottom plate 80B), which makes it easier to increase the rigidity of the entire tray, and it becomes easier to carry the storage tray 80 even when the fruit is placed. Further, the inner tray 80C can be manufactured by vacuum forming or pressure air forming, and the manufacturing cost can be reduced compared to the inner tray 60B that is mold processed.

[0068] Furthermore, by providing the opening 82 in the bottom plate 80B and the inner tray 80C itself having translucency, it is also possible to perform highly accurate sugar content measurement in a state where the fruit is stored in the storage tray 80.

[0069] In addition, in the bottom plate 80B illustrated in FIG. 19, the base portion 83 is formed so as to surround the four directions around each opening 82 without a gap. That is, the base portion 83 may be formed as a wall portion that surrounds the entire periphery of each opening 82. In this case, when measuring the sugar content of the fruit, the base portion 83 can prevent the measurement light transmitted through the opening 82 from becoming leakage light to the adjacent region, and more accurate sugar content measurement can be performed. However, as a modification, the base portion 83 in the bottom plate 80B may be formed by arranging island-shaped base portions 83 that are separated from each other in the four directions around each opening 82.

[0070] Also, as a further modification, it is also possible to use an outer tray in which the outer frame 80A and the bottom plate 80B are integrally formed of the same material, and configure to house the inner tray 80C on this outer tray.

[0071] The embodiments disclosed this time are illustrative in all respects and are not a basis for restrictive interpretation. Therefore, the technical scope of the present disclosure is not construed only by the above-described embodiments, but is defined based on the description of the claims.

Explanation of Signs

[0072] 10, 20, 30, 40, 50, 60, 70, 80 Accommodation trays 11, 21, 81 Protrusions 111, 811 Ridge lines 112, 211 Inclined surfaces 113 Side surfaces 114 Vertical surfaces 115 Non-placement parts 12, 42, 52, 62, 72 Groove parts 13 Tray bottom surfaces 14, 41, 51, 61, 71 Accommodation recesses 31, 50A Upper trays 32, 50B Lower trays 321 Bottom surfaces 322 Protruding parts 43, 53, 56, 63, 73, 74, 82 Openings 44, 54 Support parts 541 Recesses 55, 83 Base parts 75, 84 Flange parts 60A Outer trays 60B Inner trays 100, 101 Resin plates 24 Groove parts C Objects to be accommodated R Region (placement region) S Air layer

Claims

1. A storage tray capable of carrying a plurality of objects, In the placement area corresponding to one of the objects to be stored, a storage recess having a recessed center is formed, The storage tray according to claim 1, wherein the storage recess is constituted by a plurality of flexible loading surfaces which are separated from one another by regions.

2. The storage tray according to claim 1, A plurality of protrusions are formed on the bottom surface of the tray, The receiving tray, wherein the placement surface is included in the protrusion.

3. The storage tray according to claim 1, The storage tray according to claim 1, wherein the placement surface is an inclined surface that is lower on the inside of the storage recess and becomes higher toward the outside.

4. The storage tray according to claim 1, A storage tray, characterized in that a non-loading portion where the loading surface does not exist is provided at the center of the storage recess.

5. The storage tray according to claim 1, A storage tray, wherein the plurality of mounting surfaces have the same shape.

6. The storage tray according to claim 2, an upper tray on which the contents are directly placed and which has the protrusion; a lower tray disposed below the upper tray, The lower tray has a convex portion that contacts the top of the protrusion from below and does not contact the placement surface of the protrusion.

7. The storage tray according to claim 4, The storage tray is characterized in that an opening is provided in the non-mounting portion.

8. The storage tray according to claim 1, A storage tray comprising a plurality of support portions for supporting lower portions of the plurality of placement surfaces.

9. The storage tray according to claim 8, an upper tray having the storage recess and the support portion and on which an object to be stored is directly placed; a lower tray disposed below the upper tray and having a base portion supporting the support portion from below.

10. The storage tray according to claim 1, an inner tray having the storage recess and on which the object to be stored is directly placed; A storage tray having a box shape with an open top and including an outer tray for storing the inner tray therein.

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