JP6186162B2 - Packaging tray - Google Patents

Description

  The present invention relates to a packaging tray for packaging items to be individually packaged one by one.

  Conventionally, as a packaging tray of relatively large grains used for fruits such as strawberries, especially for progress, etc., since the surface of the straw is relatively soft and easily hurt from the part that comes into contact with other things, A first container for cushioning molded from a flexible foamed resin sheet having elasticity, and a second container for support molded from a synthetic resin sheet having shape retention so as to be able to receive and support the container; Fruit packaging trays that are combined are known.

  For example, Japanese Utility Model Publication No. 61-144070 (Patent Document 1) or Japanese Utility Model Application Publication No. 62-3465 (Patent Document 2) has a plurality of storage recesses that can store fruits such as persimmons in individual packaging. Shock absorbing combination of a shock-absorbing container made of a flexible foamed resin sheet and a supporting container made of a non-foamed synthetic resin sheet in which a holding recess for fitting and supporting the storage recess is formed Sex trays have been proposed.

  Japanese Patent Application Laid-Open No. 2011-16572 (Patent Document 3) proposes a cushioning sheet 12 composed of a material sheet 16 and a nonwoven fabric sheet 17 and having a gap formed therebetween. Further, JP 2010-64761 A (Patent Document 4) proposes a container A including a support container 20 and a buffer container 10.

Japanese Utility Model Publication No. 61-144070 Japanese Utility Model Publication No. 62-3465 JP 2011-16572 A JP 2010-64761 A

  However, since any of the above-described trays is a combination of two types of members, a process for combining them is necessary. In addition, in the case of fruits having slightly different sizes, it is difficult to fit into the storage recess, and higher buffering protection may be required.

  Accordingly, an object of the present invention is to provide a packaging tray having further improved buffer protection without combining two kinds of members.

  In other words, it is a packaging tray made of a flexible flexible foamed resin sheet and containing a storage item such as fruit. The substrate portion extends in the horizontal direction and rises upward from the substrate portion to surround the outer periphery of the storage item. Provided is a packaging tray having a standing wall and a deforming portion communicating with the leading end side of the standing wall, wherein the deforming portion is formed in a mountain shape having a caldera.

Since it is made of a flexible flexible foamed resin sheet, it can be transported or displayed by containing a container such as fruit. In addition, it is possible to provide a packaging tray that is less likely to be damaged during transportation and has a good appearance during display.
Since this packaging tray has a standing wall that rises upward from the substrate portion and surrounds the outer periphery of the stored item, the stored item hardly protrudes from the standing wall and can be stably stored. Moreover, since it has a deformation | transformation part connected to the front end side of this standing wall, an accommodation thing can be accommodated inside a standing wall by deform | transforming a deformation part. And since it has a board | substrate part along a horizontal direction, the several standing wall and deformation | transformation part corresponding to every accommodation can be provided in multiple places.

  And since the deformation | transformation part of a packaging tray is formed in the mountain shape provided with the caldera, it can obtain the pushing part match | combined with the magnitude | size of a strawberry, and can raise the size tolerance with respect to the accommodated thing from which a magnitude | size differs. it can. That is, when putting things such as strawberries, small strawberries can be accommodated in the caldera portion. If it becomes a larger strawberry, the slope of the mountain can be pushed inward to deform and wrap around the strawberry. Thus, even if the size of the strawberry changes, the periphery of the strawberry can be wrapped corresponding to the size, and sufficient accommodation can be ensured reliably regardless of the size of the strawberry.

  In the shape of the U-shaped section corresponding to the prior art, which is recessed downward, the U-shaped portion is not easily deformed even when the strawberry is accommodated. Therefore, if the dent is made large corresponding to a relatively large strawberry, there will be many gaps for the small strawberry. Conversely, if the dent is made small corresponding to a relatively small strawberry, the large strawberry will not easily enter the dent. Become. Therefore, the size tolerance was low.

The deformable portion can be provided with a gentle top portion between the outer wall portion serving as the slope of the mountain and the concave portion corresponding to the caldera. The surface area of the deformed portion can be increased by providing a gentle top portion between the outer wall portion serving as the slope of the mountain and the concave portion corresponding to the caldera. In other words, it is deformed by having a gentle top compared to the case where it protrudes upward in a simple mountain shape from the tip of the standing wall or when it is suddenly (acutely acutely) recessed downward from the tip of the standing wall. The surface area of the part can be enlarged.
When the surface area of the deformed portion is large, the pushed-in portion when the strawberry is accommodated can be taken deeply, so that it is possible to stably accommodate even larger strawberry, and the size tolerance can be further expanded.

  As described above, since the strawberry can be sufficiently wrapped and accommodated, it can be held stably and can hardly be ejected to the outside. Therefore, it is possible to improve the storage retention of the stored items. Further, since it is sufficiently encased, the shock-absorbing property against vibration and impact is enhanced.

  About a recessed part, it can form thicker than a top part. If the concave portion is formed thicker than the top portion, the top portion is more easily deformed than the concave portion. Therefore, when the stored object is placed, the top part is deformed rather than the recessed part is deformed, and the stored object can be wrapped so as to be wrapped.

  The thickness of the recess can be formed so as to gradually increase toward the bottom. If the thickness of the concave portion is formed so as to gradually increase downward, the upper portion of the concave portion is more easily deformed than the lower portion. Therefore, when placing the contents, it is possible to deform the upper part with a large deformation amount without difficulty. Moreover, it is easy to produce a clearance gap between the thing and the bottom of a recessed part, and it can prevent that the bottom of the thing which is easy to apply a load adheres to a packaging tray.

  It can be set as the packaging tray which has a step part in the front end side of a standing wall, and a standing wall and a deformation | transformation part connect via this step part. Since the step portion is provided between the standing wall and the deformed portion, it is easy to be divided into a portion that does not deform with the step portion as a boundary and a portion that does not deform. That is, by providing the stepped portion, the deformed portion can be easily deformed corresponding to the accommodation of the strawberry, while the standing wall is hardly deformed and the strawberry can be protected from the outside.

  The deformable portion can be formed thinner than the standing wall. Since the deforming portion is formed thinner than the standing wall, the deforming portion can be easily deformed and the standing wall can be hardly deformed. Therefore, while a deformation | transformation part is made to contact a strawberry and it protects, a standing wall can be accommodated without contacting a strawberry. Thereby, it is possible to prevent a large force from being directly applied to the stored item against an external impact.

  Support legs that protrude downward from the substrate portion can be provided. Since the support leg which protrudes below from a board | substrate part was provided, a strawberry can be sunk below exceeding the height of a standing wall. In other words, the standing wall can be formed low, and a packaging tray having a good appearance from the side can be obtained. Moreover, it can be stably placed on the mounting surface.

  A part of the boundary between the outer wall portion corresponding to the storage of one container and the outer wall portion adjacent to the outer wall and corresponding to the storage of the other container is projected at the boundary. Boundary protrusions can be provided. By providing such boundary projections, a packaging tray in which molding defects are unlikely to occur without forming a portion where the outer wall portions formed relatively thinly contact each other at an acute angle is obtained.

According to the packaging tray of the present invention, it is possible to increase the holding and holding properties that make it difficult to jump out, the shock-absorbing properties against external shocks and vibrations, and the size tolerance corresponding to the change in the size of the stored items.
Moreover, according to the packaging tray of this invention, since it can shape | mold from one foamed resin sheet, it can reduce the number of work processes and can reduce manufacturing cost.

It is a top view of the packaging tray of 1st Embodiment. It is the SA-SA sectional view taken on the line of FIG. It is the SB-SB sectional view taken on the line of FIG. FIG. 4 is a cross-sectional view corresponding to FIG. 3 in a state where the concave portion is folded upward. It is explanatory drawing which shows the state which accommodated the strawberry in the individual packaging main body of FIG. FIG. 3 is a cross-sectional view corresponding to FIG. It is a top view of the packaging tray of 2nd Embodiment. It is the SC-SC sectional view taken on the line of FIG. It is the SD-SD sectional view taken on the line of FIG. It is the SE-SE sectional view taken on the line of FIG. It is the SF-SF sectional view taken on the line of FIG. It is a top view of the packaging tray of 3rd Embodiment. It is the SG-SG sectional view taken on the line of FIG.

  Embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part which is common about each embodiment, and duplication description is abbreviate | omitted about common matters, such as a structure, a manufacturing method, a material, and an effect.

First Embodiment [FIGS. 1 to 6] :
The packaging tray 11 of this embodiment is shown in FIGS. 1 is a plan view, FIG. 2 is a sectional view taken along line SA-SA in FIG. 1, and FIG. 3 is a sectional view taken along line SB-SB in FIG.
As shown in these drawings, the packaging tray 11 has a substrate portion 12 extending in the horizontal direction, and rises upward from the substrate portion 12 to surround the outer periphery of the accommodated item (for example, “strawberry”; not shown in FIGS. 1 to 3). A standing wall 13 formed in a cylindrical shape so as to surround, and a deformable portion 14 that communicates with the distal end 13a side of the standing wall 13 and closes the distal end 13a side of the standing wall 13, and is flexible and flexible. It is formed from a foamed resin sheet.
An individual main body 15 that accommodates one strawberry is formed from one standing wall 13 and one deformable portion 14, and FIG. 1 shows an example in which two individual main bodies 15 are provided.

  The substrate portion 12 is a base portion for raising the standing wall 13 and is formed in a planar shape extending in a substantially horizontal direction with respect to a placement surface such as a display shelf or a packing container, and connects a plurality of individual packaging bodies 15. It also has a role. Further, while the individual package main body 15 is formed to protrude upward from the substrate portion 12, support legs 17 that protrude downward from the substrate portion 12 are formed, and the substrate portion 12 is lifted upward from the lowermost end of the packaging tray 11. ing.

  The standing wall 13 surrounds and protects the outer periphery of the strawberry. The deformed portion 14 described later is deformed when the strawberry is accommodated, whereas an outer frame that does not easily deform even when the strawberry is accommodated is formed. In order to increase the difficulty of deformation of the standing wall 13, the standing wall 13 can be provided with a rib portion 13 b extending in a direction perpendicular to the extending direction. The packaging tray 11 is provided with four rib portions 13b at equal intervals with respect to one individual packaging body 15.

The deformable portion 14 is formed in a mountain shape having a caldera, and has an outer wall portion 14a that becomes a slope of the mountain, a top portion 14b that is the highest point portion of the mountain, and a concave portion 14c that corresponds to the caldera. Further, a step portion 16 is formed between the standing wall 13 and the deformable portion 14.
In the packaging tray 11, the top part 14b between the outer wall part 14 used as the slope of a mountain and the recessed part 14c equivalent to a caldera is formed gently, and the outer wall part 14a and the recessed part 14c are continuing smoothly. That is, since the concave portion 14c is not bent at an acute angle with respect to the outer wall portion 14a, when the concave portion 14c is inverted upward, the cross section of the deformable portion 14 is formed in a shape having an inflection point as shown in FIG. . Thus, since it does not become a simple convex parabola, the surface area of the deformable portion 14 can be increased.

  A foamed resin sheet is used for the packaging tray 11, but a material that is flexible, flexible, and easily deformed is preferable as compared with a polystyrene-based foamed resin sheet or the like, and examples thereof include an olefin-based foamed resin sheet. More preferably, a polyethylene-type foamed resin sheet and a polypropylene-type foamed resin sheet are mentioned. Among suitable materials, a cross-linked material is more preferable in order to give strength against breakage.

  The packaging tray 11 can be manufactured by forming a foamed resin sheet into a predetermined shape using a known forming method such as vacuum forming. And it is preferable to form the thickness of the deformation part 14 thinner than the thickness of the standing wall 13. This is because the deforming portion 14 is easily deformed and the standing wall 13 is difficult to deform. Although the thickness in the deformation | transformation part 14 can equalize each site | part, the top part 14b can be made the thinnest. By making the top portion 14b the thinnest, the deformable portion 14 can be more easily deformed. Such molding can utilize the characteristic on molding that tends to become thinner as the distance from the substrate portion 12 increases. And the recessed part 14c can be made comparatively difficult to deform | transform by making the recessed part 14c thicker than the top part 14b. That is, when the contents are placed, the top portion 14b is deformed more easily than the recess portion 14c and sinks downward from the periphery of the recess portion 14c.

  As an example of the size of the packaging tray 11, the thickness of the substrate portion 11 is 2.5 mm, the diameter of the standing wall 13 is 70 mm, the thickness is 2.5 mm, the thickness of the deformed portion 14 is 0.8 mm to 1.5 mm, and the recess 14c. The depth from the top portion 14b can be 18 mm, and the height of the top portion 14b from the substrate portion 13 can be 33 mm.

  In order to store the strawberry S in the packaging tray 11, one strawberry S is made to correspond to one individual packaging body 15. When the strawberry S is put on the concave portion 14c and pushed downward, the top 14b and the outer wall portion 14a of the deformed portion 14 are mainly deformed and pushed inward along the strawberry S, and the strawberry S is surrounded by the standing wall 13. Is housed. This state is shown in the plan view of FIG. 5 and the cross-sectional view of FIG.

According to the packaging tray 11, since the outer wall part 14a and the top part 14b of the deformation | transformation part 14 can sink below by putting the strawberry S and can wrap the circumference | surroundings of the strawberry S, the elastic deformation | transformation part 14 is made into the strawberry S. It can be accommodated in contact with. Therefore, it has a high shock-absorbing property against impacts and vibrations from the outside, and even if the strawberry S has a variation in size, the degree of wrapping varies depending on the size, so the size tolerance is high. Furthermore, since the shape of the standing wall 13 is maintained, the strawberry S hardly protrudes to the outside, and the holding and holding properties are high.
Since the manufacturing of the packaging tray 11 can be molded from one foamed resin sheet, the packaging tray 11 having a small number of work steps and a low manufacturing cost can be obtained.

  By forming the concave portion 14c relatively thicker than the top portion 14b, or by providing a smooth top portion 14b, as shown in FIG. 6, when accommodating a larger strawberry S than the outer diameter of the concave portion 14c, A gap B that retains the shape of the recess 14c under the strawberry S can be generated. If there is a gap B, moisture that has entered between the strawberry S and the standing wall 13 accumulates in the gap B and does not contact the strawberry S, so that the strawberry S can be kept fresh. Moreover, since the strawberry S and the deformation | transformation part 14 do not contact in the part of the clearance gap B, it does not need to increase a contact part more than necessary, and the excessive compression of the strawberry S can be prevented. Moreover, since the recessed part is thick, even if the recessed part 14c sinks rather than the support leg 17 and the bottom of a recessed part hits a mounting stand etc., the strawberry S can be protected by thick thickness.

Second Embodiment [FIGS. 7 to 11] :
The packaging tray 21 for strawberries shown in FIG. 7 to FIG. 11 forms a total of 8 individual packaging bodies 15 in 4 columns vertically and 2 rows horizontally, and each individual packaging body 15 is vertically long in the vertical direction in the plan view. Is formed.
The individual main bodies 15 adjacent to each other in the vertical direction in FIG. 7 are in contact with each other by the standing wall 13, and the substrate portion 12 is not present between the two. However, each deformation | transformation part 14 is independent, without connecting directly with the adjacent individual packaging main body 15, and sufficient sinking of the strawberry S is possible for every individual packaging main body 15. FIG. Moreover, although the space | interval between the individual packaging main bodies 15 adjacent in the horizontal direction of FIG. 7 is very narrow, the level | step-difference part 16 is shared by both the individual packaging main bodies 15 (refer FIG. 11).

  There are a total of three support legs 17 at the center surrounded by the individual package main body 15. Further, the end portion of the substrate portion 12 is bent downward to form a side surface portion 18. The packaging tray 21 can be stably placed on the placement surface by the lower end of the side surface portion 18 and the lower end of the support leg 17 contacting the placement surface.

  The packaging tray 21 is also excellent in storage and holding properties, buffer properties, and size tolerance, and can be easily manufactured. And the strawberry S can be accommodated beautifully.

Third Embodiment [FIGS. 12 and 13] :
FIG. 12 is a plan view of the packaging tray 31 of the present embodiment, and FIG. 13 is a sectional view thereof.
The packaging tray 31 also forms eight individual packaging main bodies 15 similarly to the packaging tray 21, but in this embodiment, each packaging main body 15 is formed so as to face obliquely in plan view.
The support leg 17 is also provided at the center surrounded by the individual package main body 15, but is formed so as to be inclined leftward while the individual package main body 15 is inclined rightward in a plan view.
Further, although the space between the individual main bodies 15 adjacent in the horizontal direction in FIG. 12 is very narrow, the outer wall portion 14a is formed by forming a boundary projection 16a that is continuous from the stepped portion 16 and protrudes upward. Contact between each other is avoided (see FIG. 12).

The formation of the boundary projections 16a also prevents the outer wall portions 14a from coming into contact with each other to form an acute shape, thereby making it difficult to cause molding defects. In addition, the boundary protrusion 16a is a partition between the strawberries S without being deformed when the strawberries S are accommodated, but can be made to act as a part of the deformed portion 14 depending on the thickness thereof. In this case, the outer wall portions 14a that are in contact with each other without having a sufficient length in the vertical direction are portions that allow deformation.
Such a packaging tray 21 is also excellent in storage and holding properties, buffer properties, and size tolerance, and can be easily manufactured. And the strawberry S can be accommodated beautifully.

The packaging tray shown by the said embodiment is an illustration, and is not limited to such a form, It contains the arbitrary modified forms which are not contrary to the meaning of this invention. That is, the case of not including a part of the configuration shown in the above embodiment, including another known configuration, or substituting it is also included in the scope of the present invention.
For example, in FIG. 7 and FIG. 12, etc., the number of the individual packaging main bodies 15 is not limited to eight and can be modified to provide an appropriate number. In addition, the outer frame can be formed by projecting only an appropriate portion of the end portion of the substrate portion 12 downward without providing the side surface portion 18. On the contrary, if the side surface portions 18 are formed at the outer periphery or the four corners of the substrate portion 12, the support legs 17 can be omitted.

In the present embodiment, strawberry is cited as the container, but this is merely an example, and the container is not limited to strawberry. That is, in addition to fruits including strawberry and other agricultural products, seafood such as seafood may be used, and it can be suitably used for those requiring buffering properties whose size and shape are not uniform.
Further, high dimensional accuracy is required for the size and shape, and it can be suitably used for industrial products such as electronic parts whose size and shape are hardly changed. For such industrial products, the packaging tray usually requires high dimensional accuracy corresponding to each industrial product. However, since the present invention is a packaging tray having a high size tolerance, the packaging tray Even if there is some variation in the size and shape, the buffering property can be maintained.

11, 21, 31 Packaging tray 12 Substrate part 13 Standing wall 13a Tip 13b Rib part 14 Deformation part 14a Outer wall part 14b Top part 14c Concave part
15 Individual packaging body 16 Stepped portion 16a Boundary protrusion 17 Support leg 18 Side surface S Strawberry B Gap

Claims (8)

Ri packaging tray der housing the result contained goods from flexible foamed resin sheet resilient, and the substrate portion along the horizontal direction, and vertical wall which is adapted to surround the outer periphery of the contained object rising upwardly from the substrate section, a packaging tray for chromatic and deformed portion communicating with the distal end side of the upright wall, the deformable portion has a top annular surrounding the outer periphery of the housing thereof, and an outer wall portion extending from said top portion to said vertical wall The packaging tray is characterized in that the top portion and the outer wall portion are deformed so as to be squeezed so as to be crushed along the accommodation when the accommodation is placed inside the top . The deformable portion has a concave portion inside the top portion, and the top portion and the outer wall portion have a series of concave surfaces that wrap around the container together with the concave portion by sinking so as to be crushed along the container. The packaging tray according to claim 1 to be formed.   The packaging tray of Claim 2 which formed the recessed part thicker than the top part.   The packaging tray according to claim 2 or 3, wherein the thickness of the concave portion is formed so as to gradually become thicker downward.   The packaging tray according to any one of claims 1 to 4, wherein a stepped portion is provided on a front end side of the standing wall, and the standing wall and the deformed portion communicate with each other through the stepped portion.   The packaging tray according to any one of claims 1 to 5, wherein the deformed portion is formed thinner than the standing wall.   The packaging tray according to any one of claims 1 to 6, further comprising a support leg protruding downward from the substrate portion.   A boundary projection is provided between an outer wall portion corresponding to storing one storage object and an outer wall portion adjacent to the outer wall portion and corresponding to storing another storage object. Item 8. The packaging tray according to any one of Items 7.

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