JP2008100693A - Storage tray - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage tray which is capable of forming a large space by mounting no separate member when storing an object to be stored and easily stacked when stacking a plurality of the same storage trays, and capable of reducing the storage space during non-use by reducing the space when storing the storage tray. <P>SOLUTION: The storage tray comprises a flat part 2, a storage recess 3 for storing an object B to be stored, a side wall 4 extending in a taper from the outer peripheral end of the flat part 2, and a space forming means 5 extending from the outer peripheral edge of the side wall 4. The space forming means 5 comprises a folding piece 51 which is foldable inward of the side wall 4 and returnable outward of the side wall 4, and a projecting body 52 projecting from the folding piece 51. The projecting body 52 is projected inward of the side wall 4 while the folding piece 51 is folded inward of the side wall 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a storage tray in which, for example, a substrate on which electronic components or the like are mounted is stored, and more particularly, to a storage tray that is effective when a plurality of the same storage trays are stacked and a transfer source and a transfer destination are reciprocated multiple times. .

In general, there is a storage tray that stores objects to be stored such as circuit boards on which electronic components are mounted and that is stacked up and down.
Such a storage tray is, for example, stored and transported in a cardboard box or the like in a state where a plurality of trays storing stored objects are stacked at the transfer source, and after the stored objects are taken out at the transfer destination, Only empty trays are stacked again, stored in a cardboard box, and returned to the conveyance source, which is used as a so-called box.
Conventionally, as this type of storage tray, the one described in Patent Document 1 (Japanese Patent Laid-Open No. 2002-370744) is known.

As shown in FIGS. 10 and 11, the storage tray 100 described in Patent Document 1 includes an outer frame portion 101 and a plurality of support chambers (not shown) that are provided inside the outer frame portion 101 and can store objects to be stored. And a support chamber forming portion 102 having a zipper). A plurality of three-dimensional molded parts 103 are recessed in each side of the outer frame part 101.
As shown in FIG. 11, the bottom of the three-dimensionally formed portion 103 includes a middle surface 104 having a surface deeper than the general surface of the outer frame portion 101 and a surface deeper than the middle surface 104. The lower surface 105 is formed.

As shown in FIG. 10, the three-dimensionally formed portion 103 is provided on a side facing the longitudinal direction of the outer frame portion 101, and two sides are formed. Among these, the three-dimensionally shaped portion 103 on one side in the longitudinal direction has a middle surface 104 formed on the center side of the bottom and a lower surface 105 formed on the outside. Also, in the three-dimensionally shaped part 103 on the other side in the longitudinal direction, the bottom part is different from the three-dimensionally shaped part 103 on the one side in the longitudinal direction, and the lower surface 105 is formed on the center side and the middle surface 104 is formed on the outer side. ing.
Further, four three-dimensionally shaped portions 103 on each side are formed on the sides facing the direction orthogonal to the longitudinal direction of the outer frame portion 101. The three-dimensional molded portion 103 has a middle surface 104 formed on one side in the longitudinal direction and a lower surface 105 formed on the other side in the longitudinal direction.

The storage tray 100 is stacked with its orientation changed by 180 degrees in a state where an object (not shown) is stored in the support chamber.
At this time, as shown in FIG. 11, in each storage tray 100, the three-dimensional molded portion 103 of the outer frame portion 101 is in contact with the middle surface 104 of the lower surface 105 of the upper storage tray 100, and each storage tray 100. Since a gap is formed between the upper storage tray 100 and the upper storage tray 100, it is difficult for the stored storage object to hit the upper storage tray 100.

  In a state where the objects to be stored are not stored in the support chamber, the storage trays 100 are stacked in the same direction. At this time, in the three-dimensional molding portion 103 of the outer frame portion 101 of each storage tray 100, the positions of the middle surface 104 and the lower surface 105 of the upper storage tray 100 of each storage tray 100 are aligned. There is almost no gap between 100 and the upper storage tray 100, and the height of the stacked storage trays 100 is reduced.

Conventionally, as this type of storage tray, a technique described in Patent Document 2 (Japanese Utility Model Laid-Open No. 01-170609) is also known.
As shown in FIG. 12, the storage tray 120 includes a flat portion 121, a storage concave portion 122 formed in the flat portion 121, and a side wall portion 123 extending downward from the outside of the flat portion 121. . In addition, a spacer 124 having a quadrangular cross section is provided on the back side of the flat portion 121.
When the storage trays are stacked, the spacers 124 of the upper storage tray 120 come into contact with the flat portion 121 of each storage tray 120, so that a gap is formed between each storage tray 120 and the upper storage tray 120. The Therefore, the lower surface of the upper storage tray 120 does not hit the object to be stored (not shown).

JP 2002-370744 A Japanese Utility Model Publication No. 01-170609

However, in the storage tray described in Patent Document 1, when storing and stacking the objects to be stored, the storage tray must be stacked in a different direction from the uppermost storage tray 100 rotated by 180 degrees and stacked. Therefore, there is a problem that the work of stacking the storage trays 100 storing the objects to be stored becomes complicated and the work efficiency of the objects to be stored is reduced.
Further, since the storage tray 100 to be stacked from now on and the uppermost storage tray 100 are identified as to which direction they are facing, the storage tray 100 must be rotated as necessary. In this respect, the work of stacking becomes complicated, and there is a problem that the work efficiency of the work for storing the objects to be stored is further reduced.
Therefore, if this identification is neglected or misunderstood and the storage tray 100 is stacked in the wrong direction, the lower side of the storage tray 100 to be stacked on the storage objects stored in the uppermost storage tray 100 will be described. If the surface hits, a load will be applied to the article to be stored. If a load is applied to the object to be stored, in the worst case, the object to be stored may be damaged.

Further, in the storage tray 120 described in Patent Document 2, since the spacer 124 is adhered to the back side of the flat surface portion 121, a gap can be formed even if stacked without determining whether or not the stacking is allowed. On the other hand, there is a gap when stacking after taking out the objects to be stored, the height of the stacked storage tray 120 becomes high, and the space to store when not in use is widened. There is.
In the storage tray 120, in order to save the storage space, it is conceivable that the spacer 124 is separated and can be detached from the flat portion 121. In this storage tray 124, when storing and stacking the objects to be stored, a spacer 124 is attached, and when storing the storage tray 120 without storing the objects to be stored, the spacer 124 may be removed and stacked.
However, since the spacer can be removed from the storage tray 120, the height of the stacked storage tray 120 as a whole is certainly reduced, but the spacer 124 is separated and the number of parts is increased, so the spacer 124 is not lost. As a result, there is a problem that it takes more time and effort to manage, and the handling becomes difficult.

  The present invention has been proposed in order to solve the above-described problems of the conventional technology. When a plurality of the same trays are stacked, a separate member is attached when storing the objects to be stored. The gap between the trays can be formed with a large gap between the trays and can be easily stacked to improve the efficiency of storing the objects to be stored. An object of the present invention is to provide a storage tray in which the storage space when not in use can be reduced by reducing the size of the storage tray.

  In order to achieve the above object, the storage tray of the present invention is a storage tray that stores objects to be stacked and is stacked up and down, in which a plate-shaped flat portion and the objects to be stored formed in the flat portion are stored. And a gap forming means extending from the outer peripheral edge of the side wall portion, and a gap forming means extending from the outer peripheral edge of the side wall portion. The forming means includes a folding piece that can be folded inside the side wall and can be folded back outside the side wall, and a projecting body projecting from the folding piece. In the state of being folded back to the outside of the side wall, the bent piece and the projecting body do not interfere with other storage trays stacked vertically, and the folded piece is folded to the inside of the side wall. The protruding body protrudes inside the side wall and stacks up and down. Contact with the flat portion of the other housing trays Nera, are configured to form a gap between the said other storage tray.

According to the storage tray of the present invention having such a configuration, when storing and stacking the objects to be stored, first, for example, the objects to be stored are stored in the storage chamber of the storage recess, and the folded piece is bent. The protruding body is protruded inside the side wall.
Next, in this state, they are sequentially stacked on the storage tray in which the objects to be stored are stored.
At this time, in each of the storage trays, the projecting body that protrudes to the inner side of the side wall is in contact with the flat portion of the other storage tray, so that a large gap can be formed between the storage tray and the other storage tray. . Accordingly, it is possible to prevent a situation in which the lower surface of the storage tray to be stacked on the storage object hits and a load is applied thereto.
In addition, the determination as to whether or not stacking is possible is merely checking whether or not the folded piece of the storage tray is bent, and there is no work to rotate the storage tray itself after this determination. The stacking work can be easily performed, and the work efficiency of the work for storing the objects to be stored can be greatly improved.

Then, in a state where a plurality of storage trays storing the articles to be stored are stacked, they are stored in a cardboard box or the like and transported to a predetermined transport destination. Thereafter, the tray from which the objects are taken out from the storage tray is stored in a cardboard box or the like in a state where a plurality of empty trays are stacked, and is returned to the transport source.
When the storage tray is not used for a certain period, the folded pieces of the storage trays are folded back and the storage trays are stacked in order.
At this time, the side wall portion is formed in a taper shape, and the folded piece is folded back so that the folded piece and the protruding body do not interfere with the other storage tray. Can be made as small as possible. Therefore, in this state, the height of the stacked storage trays as a whole can be reduced, and transport and storage can be easily performed. Moreover, since the height of the whole storage tray is low, the storage space when the storage tray itself is not used can be made as small as possible, and space saving can be achieved.
In addition, since the gap forming means is extended on the side wall, the gap forming means is not lost as compared with a separate gap forming means, and it is not necessary to manage the members. The storage tray can be easily handled.

Desirably, the side wall portion extends from the outer peripheral end of the flat surface portion to the lower side, and the gap forming means extends from the lower end edge of the side wall portion.
In this case, the height of the storage tray is not so high and bulky as compared with the case where it extends upward, so that the storage tray can be handled easily.

Moreover, it is set as the structure by which the said clearance gap formation means was each provided in the at least 1 set of side which the said side wall part outer periphery opposes as needed.
Thereby, a clearance gap can be formed reliably over the whole storage recessed part.

Further, if necessary, the gap forming means is provided at a symmetrical position on opposite sides of the outer periphery of the side wall.
Thereby, a clearance gap can be formed more reliably over the whole storage recessed part.

In addition, it is configured to include stopper means for holding the folded state of the folded piece toward the inside of the side wall portion as necessary.
As a result, the folded piece folded inward of the side wall is held in the folded state by the stopper means, so that the folded piece does not return from the folded state.

Further, if necessary, the stopper means is configured by a groove portion that is provided on the inner side of the side wall portion and that can be engaged with the front end portion of the bent piece that is bent on the inner side of the side wall portion.
Thereby, since the front-end | tip part of a bending piece is hold | maintained by a groove part, a bending piece can be hold | maintained reliably.

Moreover, it is set as the structure which provided the said protrusion body in multiple rows along the said side wall part outer periphery with respect to one said bending piece as needed.
As a result, the plurality of projecting bodies abut against the flat portion, so that when stacked, the storage trays on the upper side of the storage trays are stably supported.

Furthermore, the said protrusion body is formed in the protruding item | line along the said side wall part outer periphery as needed.
Thereby, since the protrusion body was formed in the protruding item | line, the contact area with respect to the plane part of a protrusion body can be enlarged, and a clearance gap can be formed stably.

According to the storage tray of the present invention, since the gap forming means extends from the outer peripheral edge of the side wall, the gap can be formed when stacked without attaching a separate member.
Further, since the gap forming means is configured to include the bent piece and the protruding body, in the state where the bent piece is folded back, no gap can be formed between the other storage trays, and the bent piece can be bent. In this state, a gap can be formed between the other storage trays.
Furthermore, the operation of stacking the storage trays storing the objects to be stored can be easily performed, and the work efficiency of the objects to be stored can be improved.

Hereinafter, preferred embodiments of a storage tray according to the present invention will be described with reference to the accompanying drawings.
[First embodiment]
FIG. 1 is a plan view showing a storage tray according to the first embodiment of the present invention.
FIG. 2 is a view showing a storage tray according to the first embodiment of the present invention, in which (a) is a front view and (b) a side view.
FIG. 3 is an enlarged view of a main part of the storage tray according to the first embodiment of the present invention, taken along line AA in FIG.

The storage tray 1 according to the present embodiment shown in these drawings stores a storage object B such as a circuit board on which an electronic component or the like is mounted, and is stacked up and down. (See FIG. 5) are stored and a plurality of them are stacked, and in that state, they are further stored in a cardboard box or the like and transported to a predetermined transport destination. In this state, it is stored in a cardboard box or the like and returned to the conveyance source, so that it is used as a so-called box.
When the storage tray 1 is not used for a certain period, the storage tray 1 is stored in a warehouse or the like in a state where a large number of storage trays 1 are stacked.

Specifically, the storage tray 1 is a plate (made of polyethylene terephthalate) made of PET (polyethylene terephthalate) and formed into a substantially rectangular predetermined size (for example, about 500 mm × 400 mm) by vacuum forming or the like. The flat surface portion 2, the storage recess 3 in which the object B formed in the flat surface portion 2 is stored, the side wall portion 4 extending in a tapered shape from the outer peripheral end of the flat surface portion 2, and the lower end edge of the side wall portion 4 And a gap forming means 5 extending from. The storage tray 1 is formed symmetrically with respect to the central axis in the vertical direction and the horizontal direction in the planar direction.
In addition, when storing an electronic component etc. in the storage tray as the to-be-contained object B, it is desirable to give PET conductivity. When manufactured with PET having conductivity, the stored object B can be charged with static electricity, and adverse effects on the stored object B due to static electricity can be prevented.

(Flat part)
The flat portion 2 is formed in a substantially rectangular shape with four corners chamfered in a circle. Further, a step portion 21 having a height higher than the bottom surface of the storage recess 3 and slightly lower than the plane portion 2 is provided between the flat portion 2 and the storage recess 3 provided in the center of the flat portion 2. Is provided.

(Storage recess)
The storage recess 3 has a flat bottom surface and is provided with a storage chamber 31 inside which a plurality of articles B can be stored individually. In the present embodiment, the storage chambers 31 are arranged in a 4 × 5 matrix, and are formed by being partitioned by a plurality of partitions provided inside the storage recess 3, and components to be stored (circuit boards) Etc.), 10 or 20 parts of the same size can be stored.
The partition is formed at the time of press molding of the plate body, and there are two types, a row partition 32 arranged in a direction orthogonal to the longitudinal direction of the plane part 2 and a column partition 33 arranged in the longitudinal direction of the plane part 2. is there.

The three row partitions 32 are formed between the step portions 21 facing each other in the longitudinal direction of the plane portion 2, and among the three, the row partition 32 in the center in the longitudinal direction is formed at the same height as the step portion 21. The row partitions 32 provided on both sides in the longitudinal direction are formed so as to be lower than the step portion 21 and slightly higher than the bottom surface of the storage recess 3. In the row partition 32 having a low height, it is also possible to store the storage object B so as to straddle it.
The column partition 33 is formed at the same height as the step portion 21, and is formed so as to protrude from the step portion 21 and the row partition 32 at the center in the longitudinal direction of the plane portion 2 in the longitudinal direction of the plane portion 2. Further, the leading ends of the row partitions 32 reach the row partitions 32 on both sides of the plane portion 2.
Further, the side walls of the partitions forming these storage chambers 31 allow the partition of the lower storage tray 1 to enter the inside of the partition of the upper storage tray 1 when the storage trays 1 are stacked. It is formed in a taper shape.
By providing a large number of the partitions 32 and 33 in this way, the rigidity of the storage tray 1 is improved.

(Sidewall)
The side wall portion 4 extends downward from the outer peripheral end of the flat portion 2 over the entire outer periphery of the flat portion 2. Thereby, the intensity | strength with respect to the moment which arose by the load etc. of the to-be-contained object B accommodated in the accommodation recessed part 3 becomes strong. Further, the side wall 4 is extended downward, and the height per storage tray is not so high and bulky as compared with the case where the side wall 4 is extended upward. Can be handled.
Further, a part of the center of the side wall part 4 (reference numeral 41 in the figure) extending from the opposite sides in the direction orthogonal to the longitudinal direction of the plane part 2 recedes behind the general part of the side wall part 4. It is formed to do. By forming such a retreating portion 41, when storing a large number of storage trays 1 in a cardboard box or the like, a finger can be caught on the retreating portion 41, and a large number of storage trays 1 are integrated. And can be taken in and out of a cardboard box or the like.

(Gap forming means)
The gap forming means 5 is provided on at least one pair of opposing sides on the outer periphery of the side wall portion 4, and the gap forming means 5 is provided on a symmetrical position of the opposing sides on the outer periphery of the side wall portion 4. In the present embodiment, one gap forming means 5 is provided for each side wall portion 4 facing the longitudinal direction of the plane portion 2, and two gap forming means 5 are provided for the side wall portions 4 facing the direction perpendicular to the longitudinal direction of the plane portion 2. It is provided one by one.

  Specifically, the gap forming means 5 includes a bent piece 51 that can be bent to the inside of the side wall portion 4 and can be folded back to the outside of the side wall portion 4, and a protruding body 52 that protrudes from the bent piece 51. It is prepared for.

  The bent piece 51 is formed in an elongated shape in the longitudinal direction along the outer periphery of the side wall part 4, and is integrated with the side wall part 4. Although not shown, a thin portion having a smaller thickness than the bent piece 51 and the side wall portion 4 is formed at the boundary with the side wall portion 4 so that the bent piece 51 can be easily bent. Further, the width from the base end to the tip end of the bent piece 51 on the side wall portion 4 side is formed smaller than the width from the upper end to the lower end of the side wall portion 4.

  The protruding body 52 is formed in a protruding line along the outer periphery of the side wall 4, and is provided by protruding a part of the bent piece 51. Further, a plurality of projecting bodies 52 of the gap forming means 5 extended on the side wall portion 4 facing the longitudinal direction of the flat surface portion 4 with respect to one bent piece 51 along the outer periphery of the side wall portion 4 (embodiment). There are two). Further, the protruding body 52 protrudes from the surface that does not face the side wall portion 4 when the bent piece 51 is bent.

FIG. 4 is an enlarged view of a main part of the storage tray according to the first embodiment of the present invention, taken along the line B-B in FIG. 1.
As shown in FIGS. 1, 2, and 4, stopper means 6 is provided that holds the bent piece 51 in a bent state toward the inside of the side wall portion 4. Three stopper means 6 are provided at a predetermined distance from each other on the planar portion 2 facing the longitudinal direction of the planar portion 2. In addition, two plane portions 2 that are opposed to each other perpendicular to the longitudinal direction of the plane portion 2 are provided in correspondence with the position of the gap forming means 5.

The stopper means 6 is provided on the inner side of the side wall 4, and is constituted by a groove 61 that can be engaged with the tip 53 of the bent piece 51 that is bent.
The groove portion 61 is formed on the inner side of an angle formed by the bottom surface of the recess 62 formed by recessing a part of the outer peripheral edge of the flat surface portion 2 and the side wall portion 4 continuous downward from the bottom surface of the recess 62. Yes. Since this groove part 61 is provided inside the side wall part 4 and is formed at the time of press molding, a reduction in manufacturing cost can be expected as compared with the case where the stopper means 6 is provided later.

Next, the case where the storage tray 1 of the present embodiment having the above configuration is used will be described.
FIGS. 5A and 5B are diagrams for explaining the operation of the storage tray according to the first embodiment of the present invention, in which FIG. 5A is a diagram in which the stored items are stored, and FIG. 5B is a state in which the stored items are not stored. Each of the stacked figures is shown.

First, when the articles B are transported from the transport source using the storage tray 1 of the present embodiment, as shown in FIG. 5A, the bent piece 51 is folded and the protruding body 52 is moved to the side wall portion. 4, the object B is stored in each storage chamber 31 of the storage recess 3.
At this time, since the front end 53 of the bent piece 51 enters and is locked into the groove portion 61, the bent piece 51 is held in the bent state, and is unintentionally folded from the bent state when stacked. Is prevented. Moreover, since the front-end | tip part 53 of the bending piece 51 is hold | maintained by the groove part 61, the bending piece 51 can be hold | maintained reliably.

Next, in this state, the storage objects 1 are sequentially stacked on the storage tray 1 in which the articles B are stored.
At this time, in each storage tray 1 below the uppermost side, the protruding body 52 of the gap forming means 5 of the storage tray 1 on the upper side of each storage tray 1 is brought into contact with the upper surface of the flat portion 2. A large gap can be formed between the upper storage trays 1 of the respective storage trays 1.
As a result, the lower side surface of the storage tray 1 to be stacked on the upper side of the uppermost storage tray 1 hits the object B stored in the uppermost storage tray 1 and puts a load on it. The situation can be prevented.

  Further, the determination as to whether or not the storage trays 1 may be stacked may be made by checking whether or not the folded pieces 51 of the storage trays 1 to be stacked are folded. At this time, if the bent piece 51 is folded back, the bent piece 51 protrudes outward from the side wall portion 4 and is easily visible. Therefore, it is possible to easily determine whether or not the folded pieces 51 can be stacked. Moreover, since there is no work for rotating the storage tray 1 itself, the work for stacking the storage trays 1 storing the objects to be stored B can be easily performed, and the work efficiency of the work for storing the objects to be stored B is greatly increased. Can be improved.

Furthermore, since the gap forming means 5 is provided on each of two opposing sides of the outer periphery of the side wall 4, and is provided at a symmetrical position of the opposing sides of the outer periphery of the side wall 4, the gap forming means 5 extends over the entire storage recess 3. Thus, it is possible to reliably form a large gap.
Further, the gap forming means 5 extending on the side wall portion 4 facing in the longitudinal direction of the plane portion 2 is provided with a plurality of projecting bodies 52 with respect to one bent piece 51, and the plurality of projections. Since the structure 52 abuts against the flat surface portion 2, the upper storage tray 1 is stably supported by the storage trays 1 below the uppermost side. In addition, since the projecting body 52 is formed in a protruding line, the contact area of the projecting body 52 with respect to the flat portion 2 can be increased, and the gap can be formed stably and large.

The plurality of storage trays 1 stacked in this manner are stored in a cardboard box or the like and transported to a predetermined transport destination.
Thereafter, as shown in FIG. 5B, at the transport destination, the articles B stored in the respective storage trays 1 are taken out, and the empty storage trays 1 are stacked again and stored in the cardboard boxes. Returned to the transport source.
In other words, the empty storage tray 1 from which the articles to be stored B are taken out is stored in the original cardboard box or the like in the same state as being transported and returned to the transport source so that it can be repeatedly used for boxing. become.

When the storage tray 1 is not used for a long time and is stored until the next use, first, the front end 53 of the bent piece 51 is removed from the groove 61, and the bent piece 51 is folded back. The storage tray 1 is stacked in a state.
At this time, when the bent piece 51 is folded back, the bent piece 51 and the protruding body 52 do not interfere with the lower storage tray 1, and the side wall portion 4 and the partition are tapered. Therefore, in each storage tray 1 below the uppermost side, the gap between the upper storage tray 1 is reduced.

At this time, when stacking, it is possible to stack with a small gap by a simple operation of folding back the bent pieces 51.
Further, since the gap forming means 5 is extended to the side wall portion 4, the gap forming means 5 is not lost as compared with a conventional case where the gap forming means 5 is detachable separately. It is possible to save the trouble of performing management and the like, and the storage tray 1 can be handled easily. Furthermore, when the storage tray 1 is stored without being used, it can be stored without taking up much storage space.
Furthermore, when the folded pieces 51 are folded back and the storage trays 1 are stacked, the height of the stacked storage trays 1 can be lowered, so that the carrying work can be easily performed.

As described above, according to the storage tray 1 of the present embodiment, when the bent piece 51 is bent, the protruding body 52 protruding to the inside of the side wall portion 4 comes into contact with the flat portion 2 of the lower storage tray 1. Since a large gap can be formed between the storage tray 1 and the lower storage tray 1, the lower surface of the storage tray 1 hits the object to be stored B, and a load is applied to this. Can be prevented.
Further, the determination as to whether or not the articles to be stored B can be stacked is only to confirm whether or not the folded piece 51 of the storage tray 1 is bent. After this determination, Since there is no work for rotating the storage tray 1 itself, the stacking work of the storage tray 1 can be easily performed, and the work efficiency of the work for storing the articles to be stored B can be greatly improved.

Then, when the storage object 1 is taken out from the storage tray 1, the folded pieces 51 are folded back, and the storage trays 1 are sequentially stacked, the folded pieces 51 are folded back, and the folded pieces 51 and the projecting body 52 are lowered. Interference with the other storage tray 1 can be reduced, and the gap between the other storage trays 1 can be reduced, and the overall height of the stacked storage trays 1 can be reduced to facilitate storage and transportation. Can be done.
Further, since the entire height of the storage tray 1 is low, when the storage tray 1 itself is not used, it can be stored without taking up much storage space, and space saving can be achieved.
Further, since the gap forming means 5 is extended to the side wall portion 4, it is possible to save troubles such as managing the members, and the storage tray 1 can be handled easily.

[Second Embodiment]
Next, a second embodiment of the storage tray according to the present invention will be described with reference to FIGS.
FIG. 6 is a schematic perspective view showing a storage tray according to the second embodiment of the present invention.
FIGS. 7A and 7B are explanatory diagrams for explaining the operation of the storage tray according to the second embodiment of the present invention, in which FIG. 7A is a diagram in which stored objects are stored, and FIG. 7B stores stored objects. Each figure is shown in a stacked state.

As shown in FIGS. 6 and 7, the storage tray 1a of the present embodiment is different from the first embodiment in that the side wall 4a extends upward from the outer peripheral end of the flat portion 2, and includes a gap forming means. 5 is extended from the upper end edge of the side wall part 4a. Further, the gap forming means 5 is provided on the side wall portions 4 on the four sides around the flat surface portion 2.
Other components are the same as those in the first embodiment, and the same components are denoted by the same reference numerals as those in the first embodiment in the drawings, and detailed description thereof is omitted.

Next, the case where the storage tray of this embodiment is used will be described.
First, as shown in FIG. 7 (a), an object to be stored (not shown) is stored in the storage recess 3 of the storage tray 1a, and the bent piece 51 is bent to bring the protruding body 52 into the side wall 4 inside. The storage trays 1a are sequentially stacked in this state.

At this time, in each storage tray 1a below the uppermost side, the lower surface of the flat portion 2 on the upper side of each storage tray 1a abuts on the projecting body 52 of each storage tray 1a. A large gap can be formed between the upper storage trays 1a.
Also in the storage tray 1a, it is easy to determine whether or not the storage tray 1a can be stacked, and since there is no work to rotate the storage tray 1a itself, the stacking work can be easily performed.
In this state, the storage tray 1a is transported to the transport destination.

Thereafter, when the storage tray 1a is stored without being used for a certain period of time, as shown in FIG. 7B, the folded pieces 51 of the storage trays 1a from which the storage objects are taken out are folded back, The storage trays 1a are stacked.
At this time, when the bent piece 51 is folded back, the bent piece 51 and the projecting body 52 do not interfere with the lower storage tray 1a. Therefore, in each storage tray 1a below the uppermost side, The gap between the upper storage tray 1a can be reduced.
Other operations and effects are the same as those of the first embodiment.

  As mentioned above, according to the storage tray of this embodiment, by extending the side wall 4a from the outer peripheral end of the plane part 2 to the upper side, it can respond to the articles of various shapes. That is, for example, during the operation of storing the object to be stored in the storage tray, such as when storing small parts, even if the object B is about to jump out of the storage tray, it extends upward from the outer peripheral end of the side wall 4a. Since it is high, it is possible to prevent the objects to be scattered.

[Third embodiment]
In FIG. 8, the storage tray 1b of 3rd embodiment of this invention is shown.
Unlike the storage trays 1 and 1a of the above embodiment, the storage tray 1b of the present embodiment is formed in a disk shape. The gap forming means 5 is provided at a plurality of positions on the outer periphery of the side wall 4 (in the example shown in FIG. 8, four locations on the outer periphery of the side wall 4 are opposed to each other).
Other configurations, operations and effects are the same as those of the storage trays 1 and 1a of the above embodiment.

According to the storage tray of this embodiment, the gap forming means 5 is provided at a plurality of positions on the side wall portion 4, so that when stacked, the upper storage tray 1b with respect to the lower storage tray 1b. The support is stable, and the gap can be surely formed large.
In addition, the shape of the storage tray 1b itself can be changed in accordance with the shape of the storage tray, for example, corresponding to the shape of the object to be stored. In this case, for example, effects such as being able to transport the storage object more safely and arranging the storage tray 1b efficiently on the loading platform are exhibited.

The storage tray of the present invention has been described with reference to the preferred embodiment. However, the storage tray according to the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. It goes without saying that it is possible.
For example, in the first embodiment, the storage recess 3 is provided with the row partition 32 and the column partition 33, which are partitions, but the present invention is not limited to the above arrangement, and the design may be changed as appropriate. For example, as shown in FIG. 9, a plurality of row partitions 32a may be provided, and the storage chambers 31a may be arranged in a row.

Moreover, as long as the protruding body protrudes from the bent piece, for example, it may have a shape like a protrusion, and the design may be changed as appropriate. Further, the protruding body may be provided by, for example, adhering an elongated resin to the bent piece with an adhesive or the like.
Furthermore, as the objects to be stored and transported in the storage tray according to the present invention, the circuit board on which electronic components and the like are mounted has been described as an example in the above-described embodiment. It is not limited, but various parts such as various electric / electronic parts, fine parts, relatively large parts and devices, finished products, foods, etc. that can be transported using a box. The size, shape, etc. are not particularly limited.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used for boxing in which substrates on which electronic components and the like are mounted are stored, and a plurality of identical storage trays are stacked so that a transport source and a transport destination are transported a plurality of times.

It is a top view which shows the storage tray which concerns on 1st embodiment of this invention. It is a figure which shows the storage tray which concerns on 1st embodiment of this invention, Comprising: (a) is a front view, (b) It is a side view. It is a principal part enlarged view of the AA cross section in FIG. 1 of the storage tray which concerns on 1st embodiment of this invention. It is a principal part enlarged view of the cross section of the BB line in FIG. 1 of the storage tray which concerns on 1st embodiment of this invention. It is a figure explaining the effect | action of the storage tray which concerns on 1st embodiment of this invention, Comprising: (a) The figure accumulated in the state which accommodated the stored item, (b) The figure stacked in the state which does not store the stored item Each is shown. It is a schematic perspective view which shows the storage tray which concerns on 2nd embodiment of this invention. It is a figure explaining the effect | action of the storage tray which concerns on 2nd embodiment of this invention, Comprising: (a) The figure accumulated in the state which accommodated the stored item, (b) The figure stacked in the state which does not store the stored item Each is shown. It is a partially notched perspective view which shows the storage tray of 3rd embodiment of this invention. It is a top view which shows the modification of the storage tray which concerns on 1st embodiment of this invention. It is a top view which shows an example of the conventional storage tray. It is a principal part enlarged view of an example of the conventional storage tray. It is sectional drawing which shows another example of the conventional storage tray.

Explanation of symbols

1, 1a, 1b Storage tray 2 Flat portion 3 Storage recess 6 Stopper means 4, 4a Side wall portion 5 Gap forming means 21 Step portion 31, 31a Storage chamber 32, 32a Row partition 33 Column partition 51 Bending piece 52 Projection body 53 Tip Part 61 Groove part 62 Concave B Conveyed object

Claims (8)

A storage tray for storing the objects to be stored and stacked vertically.
From the plate-like flat surface portion, the storage concave portion for storing the object to be stored formed in the flat surface portion, the side wall portion extending in a tapered shape from the outer peripheral end of the flat surface portion, and the outer peripheral edge of the side wall portion Extending gap forming means, and
The gap forming means includes a bent piece that can be folded inside the side wall part and can be folded back to the outside of the side wall part, and a projecting body projecting from the folded piece,
In a state where the bent piece is folded back to the outside of the side wall, the bent piece and the projecting body do not interfere with other storage trays stacked up and down,
In a state where the bent piece is bent to the inner side of the side wall, the projecting body protrudes to the inner side of the side wall, contacts the flat surface of another storage tray that is stacked up and down, and A storage tray characterized in that a gap is formed therebetween.   2. The storage tray according to claim 1, wherein the side wall portion extends downward from the outer peripheral end of the flat surface portion, and the gap forming means extends from a lower end edge of the side wall portion.   The storage tray according to claim 1 or 2, wherein the gap forming means is provided on at least one pair of opposing sides of the outer periphery of the side wall.   The storage tray according to claim 3, wherein the gap forming means is provided at a symmetrical position on opposite sides of the outer periphery of the side wall.   The storage tray according to any one of claims 1 to 4, further comprising stopper means for holding the bent piece in a bent state toward the inside of the side wall.   6. The storage tray according to claim 5, wherein the stopper means comprises a groove portion provided on the inner side of the side wall portion and engageable with a front end portion of the bent piece bent on the inner side of the side wall portion.   The storage tray according to any one of claims 1 to 6, wherein the protruding body is provided in a plurality of rows along the outer periphery of the side wall portion with respect to one bent piece.   The storage tray according to any one of claims 1 to 7, wherein the protruding body is formed on a ridge along the outer periphery of the side wall.

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