JP2009262951A - Packing tray - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packing tray which is easy to assemble and takes environmental protection into consideration while reducing environmental load. <P>SOLUTION: The packing tray 1 is formed rectangular parallelepiped by folding one sheet several times without bonding and a recess with a flat bottom face part for product storage is formed between the top panel 3 and the bottom panel 4. A fixing protrusive piece 17 is formed by pushing down a section surrounded by slits on the outside of the storage recess which becomes the bottom face of the second product storage recess on the bottom panel 4 side. After the piece 17 is put through a fixing hole part of the panel 4, both ends 17a of the piece 17 are spread out for preventing the piece 17 from coming out from the hole part. A pair of slits is formed with an interval in the width direction between the panel 4 and the inside side panel 9 and between the panel 4 and the second side panel 8 facing the inside side panel. The section surrounded by the slits are formed as leg parts 4a, 4b by protruding them downward from the bottom panel in an assembled condition. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a packaging tray for packaging electronic devices such as mobile phones, and more particularly to a technique for simplifying the assembly structure.

  Conventionally, in packaging, in order to reduce the environmental load, a material that can be easily recycled, such as cardboard, is used, and other packaging materials and adhesives are used as little as possible.

  This type of packaging tray is generally inserted into an individual packaging box on which a product name or the like is printed, and serves to protect against vibration, dropping, etc. during product transportation. For this reason, it is not necessary to add a cost such as decoration, and it is desirable that the tray assembly be simple.

For example, the product protection frame of Patent Document 1 includes a box frame provided with a product containing recess that opens in parallel between upper and lower horizontal plate portions between left and right side plate portions and opens upward in the state of use with the intermediate horizontal plate portion as a bottom portion. It can be made into a folded shape that is flattened into a parallelogram shape when not in use, and the tip of the support piece provided on the lower horizontal plate part 1 and the support piece provided on the upper horizontal plate part is an intermediate horizontal plate The intermediate horizontal plate portion in use and the horizontal plate portion on both upper and lower sides are connected to each other by being inserted into the insertion port of the portion. As a result, it can be easily assembled by simple operation from a folded form when not in use as a product protection frame to be used for product packaging to a box form with a product housing recess when in use. It has high rigidity and excellent shape stability, and the product can be securely fixed in an appropriate buffer state.
JP 2006-16040 A

  However, in Patent Document 1, since a single sheet is bent a plurality of times and the end portions of the sheets are joined by the double-sided tape T, the presence of the double-sided tape T makes it difficult to recycle and reduce the environmental load. In addition, there was a problem that an extra time such as peeling off the separator of the double-sided tape T was required in the assembly time.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a packaging tray that is easy to assemble and is environmentally friendly while reducing the environmental load.

  In order to achieve the above object, in the present invention, the fixing protrusion outside the product receiving recess in the portion forming the bottom surface of the product receiving recess is locked to the bottom plate without using a double-sided tape. .

Specifically, in the first invention,
A packaging tray provided with a product receiving recess having a flat bottom surface formed between a top plate and a bottom plate, which is assembled into a rectangular parallelepiped shape by bending multiple times so as to sequentially wrap a single substantially rectangular sheet. set to target.

And the packaging tray is
In the assembled state of the sheet, the part that becomes the bottom part of the product receiving recess is inclined from the top plate to the bottom plate, and the bottom plate in the part is a slit on the outside of the product receiving recess of the hook. By pressing down the enclosed part, a fixing protrusion is formed,
A portion of the bottom plate corresponding to the fixing protrusion is smaller in width than the fixing protrusion, and the fixing protrusion is inserted in a state where both ends of the fixing protrusion are folded. A hole is formed,
After the fixing protruding piece passes through the fixing hole, the fixing protruding piece is configured to be prevented from coming off from the fixing hole by expanding both ends of the fixing protruding piece. ,
In the assembled state, a pair of U-shaped slits are arranged in the width direction between the inner side plate where the one end of the sheet is in contact with the inner surface of the side plate and the bottom plate, and between the side plate and the bottom plate facing the inner side plate. Formed at intervals,
The portion surrounded by the U-shaped slit is configured to protrude downward from the bottom plate to be larger than the thickness of the sheet in an assembled state to become a leg portion,
The single sheet can be assembled only by folding without bonding.

  According to the above configuration, when assembling the packaging tray while sequentially folding a single sheet, the double-sided tape or adhesive is not used, and the outer side of the product receiving recess is provided at the site that becomes the bottom of the product receiving recess. Since the fixing protrusion is easily fixed to the fixing hole, and the intermediate portion forming the bottom surface of the product receiving recess is easily and reliably fixed to the bottom plate, the packaging tray is assembled only by folding, The shape of the packaging tray is less likely to collapse. In addition, even when the leg stands up on the bottom plate during assembly and the fixing protrusion protrudes from the bottom plate, the lower end of the leg protrudes below the thickness of the fixing protrusion. In addition, the inner side of the packaging box is grounded, and the packaging tray does not rattle inside the packaging box.

In the second invention, in the first invention,
An insertion tongue piece, in which one end of the sheet is continuous with the intermediate portion in the width direction of the portion that becomes the side plate of the hook, and both of the base ends are formed with a notch,
A tongue piece insertion opening provided continuously in the width direction from the inner side plate to the bottom plate corresponding to the insertion tongue piece,
The inner rim side plate is formed at the periphery of the opening for inserting the tongue piece, and includes a locking portion to which the periphery of the cut portion is locked.
A bending line extending in the width direction is provided at the leading end of the insertion tongue piece, and both corner portions have arcuate outer peripheral edges in plan view.

  According to the above configuration, when assembling the packing tray while sequentially folding one sheet, inserting the insertion tongue piece into the opening for inserting the tongue piece causes the proximal ends of the insertion tongue pieces to be separated. Since the notch of the tongue is locked by the locking part of the opening for inserting the tongue piece, it is prevented from coming off, so that the packing tray can be simply folded without fixing the inserting tongue piece with double-sided tape or adhesive. Is assembled. Also, when inserting the tongue for insertion into the opening for inserting the tongue, the tip is folded with a folding line extending in the width direction so that the tip can be inserted without forcibly pushing the tip with a finger. A tongue piece is inserted. In addition, since the outer peripheral edges of both corners of the tongue of the insertion tongue are arc-shaped, the distal end of the insertion tongue is inserted into the periphery of the opening for inserting the tongue and the locking portion. It is hard to get caught in. Moreover, since the insertion tongue piece is provided only at the intermediate portion in the width direction of the side plate, the insertion tongue piece is easier to insert than when provided in the entire width direction.

In the third invention, in the second invention,
The locking portion is formed by the opening for inserting the tongue piece of the side plate being narrower than the width of the bottom plate.

  According to the above configuration, when the corrugated cardboard is cut to form the opening for inserting the tongue piece, the side plate forms the locking portion only by narrowing the width of the opening for inserting the tongue piece, Manufacture is easy, and since the cut portion is only hooked on the locking portion, it is not necessary to use a double-sided tape or an adhesive, and the assembly is simple.

In the fourth invention, in the third invention,
At least one pair of the product receiving recesses is formed, and the product main body is stored in any one of the product receiving recesses, and the product accessories are stored in the remaining product receiving recesses.

  According to said structure, a product main body and its accessory are accommodated compactly and stably.

In the fifth invention, in the fourth invention,
The side plate on which the insertion tongue piece is continuously provided is formed continuously with the top plate, and is provided with a slit in a part of the top plate corresponding to the product receiving recess, and is sandwiched between the slits. The side portion of the product receiving recess is formed by folding the portion downward and standing up, and inserting the tip into a fitting hole formed in the bottom portion.

  According to the above configuration, the side portion of the product receiving recess is easily and firmly fixed to the bottom without using an adhesive or double-sided tape, and the product main body and its accessories are attached to these product receiving recesses. Are housed stably.

In a sixth invention, in any one of the first to fifth inventions,
Each of the side plates opposite to the side plate and the side plate of the sheet has a trapezoidal shape in which the length of the bottom bottom of the sheet is shorter than the length of the top bottom of the sheet.

  According to the above configuration, the bottom plate of the packaging tray is narrower than the top plate of the packaging tray when viewed from the side plate in the assembled state. Easy to insert.

  As described above, according to the present invention, when assembling into a rectangular parallelepiped shape by bending a plurality of substantially rectangular sheets in order to wrap them one after another, the outer portion of the product receiving recess that is the bottom surface of the product receiving recess is formed. By inserting the fixing protrusion provided on the side into the fixing hole of the bottom plate and preventing it from coming off, it can be assembled only by folding without using double-sided tape or adhesive, reducing the environmental burden, A packaging tray that is easy to assemble and environmentally friendly can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a packaging tray 1 according to an embodiment of the present invention. This packaging tray 1 is formed with slits 2a, folding lines 2b and the like at appropriate locations on one sheet 2 shown in FIG. These are assembled into a rectangular parallelepiped by bending a plurality of lines along the slits 2a, the fold lines 2b, and the like. The sheet 2 is made of, for example, a substantially rectangular plate-like cardboard.

  Between the top plate 3 and the bottom plate 4 of the packaging tray 1, first and second product receiving recesses 5 and 6 having flat bottom surface portions 5 a and 6 a are formed. For example, a cellular phone body (not shown) as a product body is accommodated in the larger first product accommodating recess 5, and an accessory (battery cover or the like) of the cellular phone is accommodated in the smaller second product accommodating recess 6. It has come to be.

  In the packing tray 1, a pair of first side plates 7 and second side plates 8 facing the top plate 3 and the bottom plate 4 are connected. As shown in FIGS. 4 and 5, the first and second side plates 7, 8 are trapezoidal, and the bottom plate 4 has a lower bottom length that is shorter than the top plate 3. It has become. For this reason, the width W1 of the bottom plate 4 of the packaging tray 1 is narrower than the width W2 of the top plate 3 when viewed from the first or second side plate 7 or 8 (W1 <W2). For this reason, it is easy to insert the packing tray 1 into the individual packaging box (not shown) from the narrow bottom plate 4.

  The packaging tray 1 includes a first intermediate plate 10, a second intermediate plate 11, a third intermediate plate 12, a fourth intermediate plate 13, a fifth intermediate plate 14, and a sixth intermediate plate that are continuous with the inner side plate 9. 15 are continuously provided. That is, the inner side of the first side plate 9 is in contact with the inner surface of the first side plate 7 by sequentially folding the first to sixth intermediate plates 9 to 15 sequentially with respect to the bottom plate 4, The first intermediate plate 10 forms a flat bottom surface portion 6 a of the second product housing recess 6. In the bottom surface portion 6 a of the second product housing recess 6, the top plate 3 is inclined from the bottom plate 4 to the bottom plate 4. Further, a fixing protrusion 17 surrounded by a substantially C-shaped slit 2a is formed outside the second product housing recess 6 in which the bottom plate 4 is formed. The fixing protrusion 17 has a shape in which the tip is wider than the base end, and a fold line 2b is formed in the extension of the base end. Thus, both end portions 17a can be bent along the folding line 2b.

  A portion of the bottom plate 4 corresponding to the fixing protrusion 17 has a width smaller than that of the fixing protrusion 17, that is, a fixing hole 18 having substantially the same width as the base end of the fixing protrusion 17 has a rectangular shape. Cut and formed. Thus, the fixing protrusion 17 is inserted into the fixing hole 18 in a state where both end portions 17a of the fixing protrusion 17 are folded. Then, after the fixing protrusion 17 has passed through the fixing hole 18, the both ends 17 a of the fixing protrusion 17 are widened so that the fixing protrusion 17 is prevented from coming off from the fixing hole 18. Has been.

  As shown in FIG. 3, both ends of the portion of the first intermediate plate 10 that becomes the bottom surface portion 6 a of the second product housing recess 6 are separated by a pair of long and narrow second fitting holes 19. On the other hand, in the area corresponding to the second product accommodating recess 6 of the top plate 3, the second side surface portion 6b fitted into the pair of second fitting holes 19 is formed by being cut by the slit 2a. Yes. The second side surface portion 6b is configured to be able to stand up with the fold line 2b as a fold, is folded downward, and the lower end is inserted into the second fitting hole portion 19, and the lower end contacts the bottom plate 4 or extends to the vicinity thereof. Thus, the side surface of the second product housing recess 6 is formed.

  The third intermediate plate 12 is a connecting plate having a short width that comes into contact with the back surface (lower surface) of the top plate 3 when the second intermediate plate 11 and the fourth intermediate plate 13 are vertically erected.

  A fifth intermediate plate 14 is continuous with the fourth intermediate plate 13. In a state where a pair of lower end portions 13 a provided between the fifth intermediate plate 14 and the fourth intermediate plate 13 are raised, the lower end portions 13 a come into contact with the upper surface of the bottom plate 4.

  The fifth intermediate plate 14 is formed in parallel with the top plate 3 and the bottom plate 4 and constitutes a horizontal bottom surface portion 5 a of the first product housing recess 5. Similar to the second product housing recess 6, both ends of the portion of the fifth intermediate plate 14 which becomes the bottom surface portion 5 a of the first product housing recess 5 are separated by a pair of first narrow fitting holes 20. On the other hand, in a region corresponding to the first product housing recess 5 of the top plate 3, the first side surface portion 5b fitted into the pair of first fitting holes 20 is cut and formed. The first side surface portion 5b is configured to be able to stand up with the fold line 2b as a fold, is folded downward and inserted into the first fitting hole 20, and its lower end abuts on the bottom plate 4 or extends to the vicinity thereof. A side surface of the first product housing recess 5 is formed.

  The sixth intermediate plate 15 is continuous with the fifth intermediate plate 14 and has a protrusion 15a at the tip. On the other hand, a U-shaped slit 2a is cut into the bottom plate 4 so as to correspond to the protrusion 15a, the slit 2a portion is raised to form a leg 4a, and a protrusion is inserted in the vicinity of the leg 4a. A hole is formed. The protrusion 15a is inserted into the protrusion insertion hole. A U-shaped slit 2a for forming a protrusion is cut into the end of the bottom plate 4 facing the protrusion insertion hole, and when the slit 2a portion is raised, it corresponds to the protrusion 15a. Thus, the leg part 4b is formed. The protruding amount of the leg portion 4a (projecting portion 15a) and the leg portion 4b from the bottom plate 4 is larger than the thickness of the seat 2. For this reason, when the leg part 4a (projection part 15a) and the leg part 4b are earth | grounded to the inner surface etc. of an individual packaging box, the tray 1 for packing does not rattle in an individual packaging box.

  The first side plate 7, which is one end of the sheet 2, is provided with an insertion tongue piece 22 in which cut portions 22 a are formed at both base ends.

  On the other hand, an opening 23 for inserting a tongue piece extending in the width direction of the sheet 2 is provided continuously from the lower end of the flange side plate 9 to the bottom plate 4 in contact with the inner surface of the first side plate 7. A locking portion 23a is formed on the periphery of the opening 23 for inserting the tongue piece on the inner side plate so as to lock the periphery of the cut portion 22a. The engaging portion 23a is formed by the opening 23 for inserting the tongue piece with the side plate narrower than the bottom plate 4 with the width.

  A bending line 2b extending in the width direction is provided at the leading edge 22b of the insertion tongue piece 22 so that the leading edge 22b can be bent. Furthermore, both corner portions 22c of the leading edge 22b of the insertion tongue piece 22 have an arcuate outer periphery in plan view.

−Packaging tray assembly procedure−
Next, the assembly procedure of the packaging tray 1 according to this embodiment will be described.

  First, as shown in FIG. 3, a sheet 2 on which slits 2a, fold lines 2b, and the like are formed is prepared.

  Next, the inner side plate 9 is erected, and the fixing protrusion 17 of the first intermediate plate 10 is inserted into the fixing hole 18 with both end portions 17a bent.

  Next, after the fixing protrusion 17 passes through the fixing hole 18, both end portions 17 a of the fixing protrusion 17 are widened. As a result, the fixing protrusion 17 is prevented from coming off from the fixing hole 18, and the bottom surface portion 6 a of the second product housing recess 6 in which the top plate 3 is inclined from the bottom to the bottom 4 is formed.

  Next, while the lower end portion 13 a of the fourth intermediate plate 13 is in contact with the upper surface (inner surface) of the bottom plate 4, the second intermediate plate 11 and the fourth intermediate plate 13 are erected vertically, and the tip of the sixth intermediate plate 15 The protrusion 15a is inserted into the protrusion insertion hole in the vicinity of the leg 4a of the bottom plate 4. Thus, the horizontal bottom surface portion 5a of the first product housing recess 5 is formed. Thus, the fixing protrusion 17 is easily fixed to the fixing hole 18 without using double-sided tape or adhesive, and the bottom surface portions 5a and 6a of the first and second product receiving recesses 5 and 6 are used. The intermediate portion that forms is easily and reliably fixed to the bottom plate 4 and the shape of the packaging tray 1 is less likely to collapse.

  Next, while raising the second side plate 8, the first side surface portion 5 b is bent, folded downward and raised, and the lower end is inserted into the first fitting hole 20. Similarly, the second side surface portion 6 b is bent, folded downward and raised, and the lower end is inserted into the second fitting hole portion 19. And the lower end of the 1st side part 5b and the 2nd side part 6b is contact | abutted to the baseplate 4, or it extends to the vicinity, and forms the side surface of the 1st and 2nd product accommodating recessed parts 5 and 6. FIG. And as shown in FIG. 4 thru | or FIG. 7, it mounts on a work table so that the top plate 3 may become a lower side.

  Next, as shown in FIG. 8, the first side plate 7 is raised while the inserting tongue piece 22 is bent.

  Next, the tip of the insertion tongue piece 22 is inserted into the tongue piece insertion opening 23 while bending the wrinkle 22b downward. Thus, by bending the leading edge 22b along the folding line 2b, the insertion tongue piece 22 is inserted into the tongue piece insertion opening 23 without being caught. In addition, since both the corner portions 22c of the leading edge 22b are arcuate outer peripheral edges in plan view, when the insertion tongue piece 22 is inserted, the distal end is further the peripheral edge of the tongue piece insertion opening 23. It becomes difficult to get caught in. Moreover, since the insertion tongue piece 22 is provided only in the intermediate portion in the width direction of the first side plate 7, the insertion tongue piece 22 is easier to insert than when provided in the entire width direction.

  Next, the first side plate 7 is pushed with the leading edge 22b inserted, and the insertion tongue piece 22 is completely inserted. Then, the inner surface of the first side plate 7 comes into contact with the outer surface of the lateral side plate 9, and both the proximal end portions of the insertion tongue piece 22 are the notch portions 22 a of the tongue portion insertion opening portion 23. It is locked by 23a and is prevented from coming off. For this reason, it is not necessary to fix the insertion tongue piece 22 with a double-sided tape or an adhesive.

  In this way, the packaging tray 1 is completed. And although not shown in figure, a mobile phone main body is accommodated in the 1st product accommodation recessed part 5, and the accessory is accommodated in the 2nd product accommodation recessed part 6 compactly and stably.

  At this time, since the first side plate 7 provided with the insertion tongue piece 22 is formed continuously with the top plate 3, the first and second product receiving recesses 5 and 6 are easily formed. In addition, when the sheet 2 is cut to form the opening portion 23 for inserting the tongue piece, the inner side plate 9 forms the locking portion 23a simply by narrowing the width of the wrinkle. And since the notch part 22a is only hooked on the latching | locking part 23a, an assembly is easy.

-Effect of the embodiment-
Therefore, according to the packaging tray 1 according to the present embodiment, when the sheet 2 having a substantially rectangular shape is sequentially bent and assembled into a rectangular parallelepiped shape, the bottom portion of the second product housing recess 6 is formed. A double-sided tape or an adhesive is used by inserting the fixing protrusion 17 provided outside the second product-receiving recess 6 in the portion into the fixing hole 18 of the bottom plate 4 to prevent it from coming off. Since it is assembled only by folding, it is possible to obtain the packaging tray 1 that is easy to assemble and considers environmental protection while reducing the environmental load.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the above embodiment, two sets of the fixing protrusions 17 and the fixing hole 18 are provided, but only one set may be provided, or three or more sets may be provided.

  Moreover, in the said embodiment, although only one set was provided for the insertion tongue piece 22 and the opening part 23 for tongue piece insertion, you may provide multiple. In this way, since the plurality of insertion tongue pieces 22 are respectively inserted and locked into the corresponding tongue piece insertion openings 23, the shape of the packaging tray 1 is further less likely to collapse.

  In the above embodiment, the sheet 2 is made of cardboard, but may be made of a recyclable resin or a biodegradable resin.

  In the above embodiment, a pair of the first and second product accommodating recesses 5 and 6 are provided, but three or more may be provided. Moreover, although the example of the mobile telephone was given as a product accommodated in the 1st product accommodating recessed part 5, if it is products, such as a small electronic device which has an accessory, what kind of thing may be sufficient.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

  As described above, the present invention is useful for a packaging tray that accommodates a small product such as a mobile phone and is accommodated in an individual packaging box.

It is the perspective view which looked at the packaging tray concerning embodiment of this invention from the bottom plate. It is the perspective view which looked at the tray for packing from the top plate. It is an expanded view of the tray for packing. It is a bottom view before folding the 1st side plate of the tray for packing. It is the side view which looked at FIG. 4 from the V direction. It is the VI-VI sectional view taken on the line of FIG. FIG. 7 is an enlarged cross-sectional view of a first side plate in FIG. 6. FIG. 8 is a view corresponding to FIG. 7 illustrating a state in which the first side plate is bent. FIG. 8 is a view corresponding to FIG. 7, showing a state in which the tip of the inserting tongue piece inserts the wrinkle into the opening for inserting the tongue piece. FIG. 8 is a view corresponding to FIG. 7 illustrating a state in which the insertion tongue piece is locked to the tongue piece insertion opening.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packing tray 2 Sheet 2a Slit 2b Bending line 3 Top plate 4 Bottom plate 4a, 4b Leg part 5 1st product accommodation recessed part 5a Bottom part 5a, 6a Bottom part 5b 1st side part 6 2nd product accommodation recessed part 6a Bottom part 6b Second side surface portion 7 First side plate 8 Second side plate 9 Inner side plate 17 Fixing protrusion 17a Both ends 18 Fixing hole portion 22 Inserting tongue piece 22a Notch portion 22b Tip edge 22c Corner portion 23 Tongue piece Opening for insertion 23a Locking part

Claims (6)

A packaging tray provided with a product receiving recess having a flat bottom surface formed between a top plate and a bottom plate, assembled in a rectangular parallelepiped shape by bending a plurality of sheets so as to sequentially wrap a substantially rectangular sheet. There,
In the assembled state of the sheet, the part that becomes the bottom part of the product receiving recess is inclined from the top plate to the bottom plate, and the bottom plate in the part is a slit on the outside of the product receiving recess of the hook. By pressing down the enclosed part, a fixing protrusion is formed,
A portion of the bottom plate corresponding to the fixing protrusion is smaller in width than the fixing protrusion, and the fixing protrusion is inserted in a state where both ends of the fixing protrusion are folded. A hole is formed,
After the fixing protruding piece passes through the fixing hole, the fixing protruding piece is configured to be prevented from coming off from the fixing hole by expanding both ends of the fixing protruding piece. ,
In the assembled state, a pair of U-shaped slits are arranged in the width direction between the inner side plate where the one end of the sheet is in contact with the inner surface of the side plate and the bottom plate, and between the side plate and the bottom plate facing the inner side plate. Formed at intervals,
The portion surrounded by the U-shaped slit is configured to protrude downward from the bottom plate to be larger than the thickness of the sheet in an assembled state to become a leg portion,
A packaging tray, wherein the single sheet is assembled only by folding without bonding. The packaging tray according to claim 1,
An insertion tongue piece, in which one end of the sheet is continuous with the intermediate portion in the width direction of the portion that becomes the side plate of the crocodile, and both of the base ends are formed with a notch,
A tongue piece insertion opening provided continuously in the width direction from the inner side plate to the bottom plate corresponding to the insertion tongue piece,
The inner rim side plate is formed at the periphery of the opening for inserting the tongue piece, and includes a locking portion to which the periphery of the cut portion is locked.
The packing tray is characterized in that a bending line extending in the width direction is provided at the front end of the insertion tongue piece, and both corner portions have arcuate outer peripheral edges in plan view. The packaging tray according to claim 2,
The above-mentioned locking part is a tray for packing, wherein the opening for inserting the tongue piece of the side plate is formed by making the width of the bottom plate narrower than that of the side plate. The packaging tray according to claim 3,
The product receiving recess is formed in at least a pair, and is configured to store the product main body in any one of the product receiving recesses, and to store product accessories in the remaining product receiving recesses. Packing tray to be used. The packaging tray according to claim 4,
The side plate on which the insertion tongue piece is continuously provided is formed continuously with the top plate, and is provided with a slit in a part of the top plate corresponding to the product receiving recess, and is sandwiched between the slits. A packaging tray, wherein a side portion of the product receiving recess is formed by folding a portion downward and standing and inserting a tip into a fitting hole formed in the bottom portion. A packaging tray according to any one of claims 1 to 5,
The side plate of one end of the sheet facing the side plate and the side plate has a trapezoidal shape in which the bottom plate has a lower bottom length than the top bottom. A special packaging tray.

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