KR20120121637A - Double-sided tray - Google Patents

Double-sided tray Download PDF

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Publication number
KR20120121637A
KR20120121637A KR1020110039553A KR20110039553A KR20120121637A KR 20120121637 A KR20120121637 A KR 20120121637A KR 1020110039553 A KR1020110039553 A KR 1020110039553A KR 20110039553 A KR20110039553 A KR 20110039553A KR 20120121637 A KR20120121637 A KR 20120121637A
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KR
South Korea
Prior art keywords
tray
plate
concave
stacked
recess
Prior art date
Application number
KR1020110039553A
Other languages
Korean (ko)
Inventor
강성재
김등관
Original Assignee
엘지이노텍 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지이노텍 주식회사 filed Critical 엘지이노텍 주식회사
Priority to KR1020110039553A priority Critical patent/KR20120121637A/en
Publication of KR20120121637A publication Critical patent/KR20120121637A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B65D21/0215—Containers with stacking feet or corner elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/68—Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/673—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
    • B65D2585/68—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form
    • B65D2585/86—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form for electrical components

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Stackable Containers (AREA)
  • Packaging Frangible Articles (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging tray for storing a load, and includes a receiving portion having a plurality of uneven portions in which the load is stored, and a convex portion for stacking and combining the trays. The concave and convex portions of the receiving portion have a width equal to the width of the concave portion and the convex portion m, and the distance L 1 from one end of the tray to the first recess and the last recess from the opposite end of the tray. Distance to L 2 is | L 1 -Provides a double-sided tray having a relationship of L 2 |

Description

Double-sided Tray {DOUBLE-SIDED TRAY}

Embodiments of the present invention relate to a packaging tray for receiving a load.

In general, trays are mainly used for packing and transporting the inspected products during the product manufacturing process.

In particular, the tray used for semiconductor modules, LED module products, etc. is configured to pursue convenience of storage or transport while preventing damage from external physical shock or static electricity that may occur during the transportation process of the product.

In this regard, Figure 1 shows a perspective view of a conventional tray.

The tray 100 is generally rectangular in shape and has a plurality of uneven parts therein. Module products are accommodated in the recesses of the tray 100, and the module products are fixed through the convex portions.

In addition, the tray is formed so as to enable a plurality of stacking and is formed so that the flow between the trays can be prevented in a stacked state.

2 is a cross-sectional view taken along the line A-A of FIG. 1 when the trays are stacked.

The module product is placed so that the semiconductor chip or LED chip is mounted, that is, the front part of the product is placed upward. In order to prevent damage to chips that are sensitive to pressure and friction, a space is provided in the upper portion of the chip so as not to contact the surface of the tray 100 during transportation.

Concave-convex portions are formed in the vicinity of each corner of the upper surface and the lower surface of the tray 100 in a state corresponding to each other. That is, when stacking is performed between the trays, the convex portion 110 formed around the upper surface of the lower tray is inserted into a corresponding recess (not shown) of the lower surface of the upper tray so that the stacked trays are fixed. .

By repeatedly performing such a process, the user stacks the trays as many times as necessary, and then covers and bands the cover trays at the top thereof to make and transport one unit of inner packing. Module products carried through the tray 100 can be used by removing the layers one by one when the cover is opened.

Meanwhile, the semiconductor module and LED module products may need to be processed on the rear side of the semiconductor module and LED module after being transported to the next process such as a product assembly company. However, in the conventional trays, the front parts of the products are disposed upward when the cover is opened after transportation. Therefore, when it is necessary to apply the treatment to the back of the product, the user is not able to take out the product immediately and use the process of flipping the products one by one. This additional process delays the process and creates difficulty in automating the process of removing the product from the tray.

Embodiment of the present invention is an invention that solves the problems of the prior art described above, and provides a double-sided tray that can easily process the rear of the stored load.

In addition, the embodiment provides a double-sided tray so that when the upside down of the stacked tray containing the load is turned upside down, the load is located in the lower portion of the upper tray, so that the rear side of the load is placed in the visible state when the tray is opened.

In order to solve the problems of the present invention as described above, the double-sided tray for accommodating the load, the receiving portion including a plurality of uneven parts are accommodated; And an edge portion disposed around the accommodating portion and having an uneven portion for stacking coupling of the tray, wherein the uneven portions of the accommodating portion have a width equal to m of a concave portion and a convex portion, The distance L 1 from one end of the tray to the first recess and the distance L 2 from the opposite end of the tray to the last recess is L 1. -L 2 | ≒ m can be a relationship.

In one embodiment, the lower surface of the tray may be formed along the irregularities in the upper surface of the tray.

In one embodiment, the recess of the tray may be in the form of narrowing toward the bottom.

In one embodiment, the height h of the recess includes a range of (1/2) x b <h ≤ (1/2) x w when the width of the load mounted on the tray is w and the height b. Can have

In addition, the double-sided tray according to an embodiment of the present invention includes a plate having a plurality of concave portions and convex portions, the concave portion of the upper surface of the plate is a convex portion of the lower surface of the plate, the upper surface of the plate The convex portion becomes a concave portion of the lower surface of the plate, when a plurality of plates are stacked up and down, the convex portion of the lower surface of the upper plate is placed on the convex portion of the upper surface of the lower plate, and the concave portion of the lower surface of the upper plate is It may be configured to face the recess.

In addition, the double-sided tray according to an embodiment of the present invention includes a tray body in which the concave or convex portions on the upper surface are convex or concave on the lower surface, the width of the concave portion of the tray body and the width of the convex portion The same, when the tray body is stacked, the convex portion of the lower surface of the tray body stacked on the upper portion is located in the convex portion of the tray body laminated on the lower portion, the concave portion of the lower surface of the tray body stacked on the upper portion It can be located in the recessed portion of the stacked tray body.

According to the present invention, the rear surface of the load carried through the stacking tray can be easily processed.

In addition, when the upside and downside of the stacked tray containing the load is turned upside down, the load is located in the lower part of the upper tray so that the rear side of the load is visible while the tray is opened, and the load is additionally reversed during the rear processing of the load. This can be omitted.

1 shows a perspective view of a conventional tray.
2 is a cross-sectional view taken along the line AA ′ of FIG. 1 when the trays are stacked.
3 is a plan view of a double-sided tray according to an embodiment of the present invention.
4 is a cross-sectional view taken along line BB ′ of FIG. 3 when a double-sided tray according to an embodiment of the present invention is stacked.
5 is a cross-sectional view taken along line BB ′ of FIG. 3 when a double-sided tray according to an embodiment of the present invention is stacked.
6 is a cross-sectional view taken along line BB ′ when the double-sided tray according to an embodiment of the present invention is stacked upside down.
7 is a cross-sectional view of a double-sided tray according to another embodiment of the present invention.
8 is a cross-sectional view of a double-sided tray according to another embodiment of the present invention.
9 is a plan view of a double-sided tray according to another embodiment of the present invention.
10 is a plan view of a double-sided tray according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

In addition, the reference to the top or bottom of each component will be described with reference to the drawings. In the drawings, the thickness or size of each layer is exaggerated, omitted, or schematically illustrated for convenience and clarity. In addition, the size of each component does not necessarily reflect the actual size.

In the description of embodiments according to the present invention, it is to be understood that where an element is described as being formed "on or under" another element, On or under includes both the two elements being directly in direct contact with each other or one or more other elements being indirectly formed between the two elements. In addition, when expressed as "on" or "under", it may include the meaning of the downward direction as well as the upward direction based on one element.

The present invention can be applied to a tray that can accommodate various loads, but will be described below in more detail by taking an example of storing the LED module.

Meanwhile, the components of the tray 200 may be referred to as recesses and protrusions formed on the tray body and the tray body, and may also be referred to as recesses and protrusions formed on the plate and the plate. If so, the embodiment will be described below by referring to an edge portion which is an edge portion of a tray in which the LED module is not stored and an accommodating portion for accommodating the LED module.

3 is a plan view of a double-sided tray according to an embodiment of the present invention.

The tray 200 may include an edge portion 220, which is an edge portion of the tray, and an accommodating portion 210 for accommodating the LED module.

The edge portion 220 of the tray 200 may be provided with a side guider 230 for guiding the plurality of trays to be stacked in place when the plurality of trays are stacked up and down. The side guider 230 may be formed of a concave portion or a convex portion. In Fig. 3, the hatched portion means a recess.

The tray 200 of FIG. 3 has an upper surface and a lower surface, wherein the concave portion on the upper surface becomes convex on the lower surface, and the convex portion on the upper surface becomes concave on the lower surface. That is, the lower surface of the tray is formed by the unevenness on the upper surface of the tray.

The tray 200 may be made of synthetic resin, and generally made of polyvinyl chloride (PVC), and may be electrified so that the LED module is not damaged by static electricity generated due to external impact. In addition, the tray 200 may be a product formed by mixing PVC and an antistatic liquid.

In FIG. 3, four side guiders 230 are disposed on each side, but the number and shape of the side guiders 230 disposed on the edge portion 220 may be easily changed according to the exemplary embodiment of the present invention.

The tray 200 of the present invention is designed to be stacked in a state in which the tray of the upper layer is rotated 180 ° with respect to the tray of the lower layer. Therefore, even when the tray is rotated 180 degrees, the side guider 230 of the lower layer can be designed to correspond to the lower surface portion of the side guider 230 of the upper layer. To this end, in the exemplary embodiment of FIG. 3, the side guider 230 is disposed to be point symmetrical around the midpoint of the tray 200.

The tray 200 shown in FIG. 3 may be referred to as recesses and protrusions formed in the tray body for receiving the tray body and the load. In addition, the tray 200 may be referred to as an uneven portion formed in the plate for receiving the plate and the load. Concave and convex portions may be formed on the edge of the tray body as side guiders, and concave and convex portions may be formed on the edge of the plate as side guiders.

The accommodating part 210 includes a plurality of concave parts and convex parts, and the LED module may be accommodated in each concave part. The width of the concave portion may be made slightly wider than the width of the LED module accommodated to accommodate the LED module, but can be manufactured to the width of the LED module possible to be fixed to the LED module in one place. A convex portion is disposed on the side of the concave portion, and the width of the concave portion may be manufactured to be substantially the same as the width of the convex portion. Here, the width of the concave portion refers to the width of the lowest bottom of the concave portion, and the width of the convex portion refers to the width of the most protruding portion of the convex portion.

In FIG. 3, the concave portion is configured such that the bottom portion, which is the lowest portion of the concave portion, and the wall portion forming the wall at the side thereof form a right angle, but the bottom portion and the wall portion of the concave portion may form an obtuse angle or an acute angle. In particular, when the concave portion becomes narrower, it may be configured not to come into contact with the bottom portion of the concave portion, no matter which side of the LED module is accommodated upward.

In FIG. 3, the case in which the LED array modules are arranged to be elongated is shown, and the recesses are arranged in a straight line. However, the shape of the recess may be changed and manufactured according to the shape of the LED module accommodated to accommodate the LED module. In addition, although five recesses are formed in the accommodating part 210 in FIG. 3, the number of the recesses may be easily changed according to the embodiment of the present invention.

The arrangement of the recesses in the accommodating portion 210 may include a distance from one side of the tray 200, for example, a cross section in the B direction, to the first recess of the accommodating portion 210, and the other side of the tray 200, for example. The difference in distance from the end surface in the B 'direction to the last recess of the storage portion 210 is formed to be the width of the recess. Here, the order of the recesses is determined in the order seen from the A direction of the tray 200. A more detailed description will be given with reference to FIG. 4, which is a sectional view taken along the line AA ′ of FIG. 3.

4 is a cross-sectional view taken along line B-B 'of FIG. 3 when a double-sided tray according to an embodiment of the present invention is stacked.

In addition, FIG. 4 shows a case in which the trays are stacked, and the tray of the lower layer is referred to as the first tray 200a and the tray of the upper layer is referred to as the second tray 200b. The second tray 200b may be stacked on the first tray 200a in a state where the second tray 200b is rotated by 180 ° about the C-C 'which is the vertical center of the first tray 200a.

In FIG. 4, the distance from the end face of the tray 200 in the B direction to the first recess is referred to as L 1 , and the distance from the end face of the tray 200 in the B 'direction to the last recess is referred to as L 2 . do. Herein, the order of the recesses is based on the order viewed from the B direction. Further, if the width of the recesses arranged in the storage section 210 of the tray 200 is m, in the embodiment of the present invention, the following equation Are satisfied.

L 1 -L 2 ≒ ≒ m (1)

That is, the distance L 1 from one end of the tray to the first recess The difference in the distance of the distance L 2 from the opposite end of the tray to the last recess is approximately m, which is the width of the recess and the convex portion of the uneven portion. Here, 'approximately' is L 1 - the difference between L 2 substantially has the accuracy of the degree to which the LED array staggered can be loaded as shown in Figures 4 to 8, when the tray is rotated by 180 degrees, and laminated in an embodiment of the present invention indicates that when the same as m Will be.

Meanwhile, L 1 -More accurately L 2 , L 1 Is the distance from the cross section of the tray 200 in the B direction to the start point of the first recess, and L 2 may be the distance from the cross section of the tray 200 in the B 'direction to the end point of the last recess.

When the above-described conditions are satisfied, the double-sided tray according to the embodiment of the present invention includes a plate having a plurality of recesses and convex portions, and the recesses of the upper surface of the plate become the convex portions of the lower surface of the plate. The convex portion of the upper surface of the plate becomes a concave portion of the lower surface of the plate, and when a plurality of plates are stacked up and down by rotating the vertical center of the plate by 180 degrees with the rotation axis, the convex portion of the lower surface of the upper plate is formed on the upper surface of the lower plate. It is placed in the convex portion, and the recess of the lower surface of the upper plate may be configured to face the recess of the upper surface of the lower plate.

In addition, the double-sided tray according to an embodiment of the present invention includes a tray body in which the concave or convex portions on the upper surface are convex or concave on the lower surface, the width of the concave portion of the tray body and the width of the convex portion The same, when the tray body is stacked while rotating the vertical center of the tray body by 180 degrees with a rotation axis, the convex portion of the lower surface of the tray body stacked on the upper portion is located in the convex portion of the tray body stacked on the lower, The concave portion of the lower surface of the tray body stacked on the may be located in the concave portion of the tray body stacked below.

In the tray 200 manufactured according to the above-described conditions, the concave portion of the upper surface of the first tray 200a faces the concave portion of the lower surface of the second tray 200b when stacked, and the convex portion of the upper surface of the first tray 200a is formed. It faces the convex part of the lower surface of the 2nd tray 200b. In addition, the first tray 200a and the second tray 200b are staggered with each other to accommodate a product.

In addition, the concave portion of the tray 200 may be configured such that the height of the concave portion is less than or equal to 1/2 of the width of the LED module accommodated so that the LED module to be accommodated is not turned over. This constraint is described in more detail in FIG. 5.

5 is a cross-sectional view taken along line B-B 'of FIG. 3 when a double-sided tray according to an embodiment of the present invention is stacked.

The upper portion of the side guider 230a of the first tray 200a is coupled to the lower portion of the side guider 230b of the second tray 200b to fix the movement of the stacked trays.

In the stacked trays, the recesses of the upper surface of the first tray 200a and the recesses of the lower surface of the second tray 200b are coupled to face each other so that a space is formed in the upper portion of the LED module. The space is for the LED module, which was accommodated in the recess of the upper surface of the first tray, to be moved to the recess of the lower surface of the second tray when the stacked trays are transported to a place for the next process and then turned upside down. The LED module, which is housed so that the surface where the LED chip is mounted (the upper surface of the LED module) is exposed in the recess of the upper surface of the first tray, moves to the recess of the lower surface of the second tray, and the surface where the LED chip is not mounted (LED module The back of the) will be stored to expose.

When the LED module moves from the first tray 200a to the second tray 200b, if the height of the concave portion is high, the LED module may be rotated 180 ° to achieve the object of the present invention to expose the back side of the LED module. In this case, if the height of the space formed when the first tray 200a and the second tray 200b are combined is smaller than or equal to the width of the LED module accommodated, the LED module cannot rotate 180 °. Therefore, the heights of the recessed portions of the first tray 200a and the second tray 200b are each configured to be 1/2 or less of the width of the LED module accommodated therein. That is, assuming that the height of the recess is h, the width of the LED module to be stored is w and the height of the LED module is b, the following equation is formed.

(1/2) × b <h ≤ (1/2) × w (2)

In this regard, the height of the LED module is generally less than the width of the LED module.

In general, the trays may be stacked at a height of 31 to 51 stages, and the number of stacked stages may be changed according to the height of the tray and the type of loads to be stored.

6 is a cross-sectional view taken along line B-B 'when the double-sided tray according to an embodiment of the present invention is stacked and then turned upside down.

The LED module stored in the first tray 200a is moved to be stored in the second tray 200b, and when the user opens the transported tray, the user obtains the LED module showing the back side.

In the SMT process, the user must process the back side of the LED module in labeling, barcode ink marking, shipment inspection, etc., and the back side of the LED module in the back tape attaching process.

When using a conventional stacked tray, the user had to go through the process of opening the cover tray and flipping the LED modules one by one to process the back of the LED module. In the case of using a tray according to an embodiment of the present invention, the entire stacked stack may be flipped, the cover tray may be opened, and the LED module may be taken out and processed without flipping.

In addition, the tray according to an embodiment of the present invention allows the automation process to take out and process a plurality of LED modules stored in the tray at once to process the back side of the LED module is made simpler.

7 is a cross-sectional view of a double-sided tray according to another embodiment of the present invention.

8 is a cross-sectional view of a double-sided tray according to another embodiment of the present invention.

7 and 8 are different from the above-described embodiment in the storage unit, but the shape of the side guider 230 for stacking the trays to the correct positions at the edges is different.

The position and shape of the side guider 230 may be variously changed according to an embodiment of the present invention which performs a function of fixing the trays which are rotated by 180 degrees.

9 is a plan view of a double-sided tray according to another embodiment of the present invention.

The double-sided tray 200 of FIG. 9 is an embodiment in which the convex portions for fixing the LED module at one position are not connected in a straight line, and the convex portions are formed discontinuously.

In the case of laminating the double-sided tray shown in FIG. 9 with the vertical center rotated 180 degrees along the rotation axis, the convex portion of the lower surface of the upper tray is convex on the upper surface of the lower tray, and the concave portion of the lower surface of the upper tray is It is located in the recess.

As shown in Fig. 9, the convex portion and the concave portion do not have to be continuous in a straight line, and the shape can be variously changed according to the embodiment of the invention.

10 is a plan view of a double-sided tray according to another embodiment of the present invention.

The double-sided tray 200 of FIG. 10 is an example in which corner portions are processed to easily recognize corners that are coupled to each other. In addition to changing the shape of the edges, you can mark the edges that need to be joined to each other by inserting a glyph, such as an arrow.

In addition, the double-sided tray of the present invention may have different marks on the corner portions facing diagonally. In this case, since the trays should be stacked while rotating by 180 °, the two-sided trays can be stacked while checking that different marks are stacked.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

100: conventional tray 220: storage portion
110: side guider 230: side guider
200: double-sided tray
210: border

Claims (12)

Double-sided tray for storing loads,
An accommodation part including a plurality of uneven parts in which the load is accommodated; And
An edge portion disposed around the accommodating portion and having an uneven portion for stacking coupling of the tray; And
The concave and convex portions of the storage portion have the same width as the concave portion with m,
The distance L 1 from one end of the tray to the first recess and the distance L 2 from the opposite end of the tray to the last recess is L 1. -L 2 | ≒ m
Reversible tray. The method of claim 1,
The lower surface of the tray is formed according to the irregularities in the upper surface of the tray,
Reversible tray. The method of claim 1,
The recess of the tray is in the form of becoming narrower toward the bottom,
Reversible tray. The method of claim 1,
The height h of the recessed portion has a range of (1/2) x b <h ≤ (1/2) x w, where w is the width of the load mounted on the tray and b is the height,
Reversible tray. A plate having a plurality of recesses and projections,
The concave portion of the upper surface of the plate is the convex portion of the lower surface of the plate, the convex portion of the upper surface of the plate is the concave portion of the lower surface of the plate,
When a plurality of plates are stacked up and down, the convex portion of the lower surface of the upper plate is placed on the convex portion of the upper surface of the lower plate,
The recess of the lower surface of the upper plate is configured to face the recess of the upper surface of the lower plate,
Reversible tray. The method of claim 5, wherein
The recess of the plate is in the form of narrowing toward the bottom,
Reversible tray. The method of claim 5, wherein
The height h of the said recessed part has the range of (1/2) * b <h <(1/2) * w, when the width of the load mounted to the said recessed part is w and height is b,
Reversible tray. The method of claim 5, wherein
Concavities and convex portions for lamination bonding are disposed on the edge portion of the plate,
Reversible tray. The concave or convex portion on the upper surface includes a tray body convex or concave on the lower surface,
The width of the concave portion of the tray body is the same as the width of the convex portion,
When the tray body is stacked, the convex portion of the lower surface of the tray body stacked on the upper portion is located in the convex portion of the tray body stacked on the lower portion, and the concave portion of the lower surface of the tray body stacked on the upper portion is stacked tray Located in the recess of the body,
Reversible tray. The method of claim 9,
The concave portion of the tray body is in the form of narrowing toward the bottom,
Reversible tray. The method of claim 9,
The height h of the concave portion has a range of (1/2) × b <h ≤ (1/2) × w when the width of the load mounted on the concave portion is w and the height is b,
Reversible tray. The method of claim 9,
Concave-convex portion for stacking coupling is disposed on the edge of the tray body,
Reversible tray.
KR1020110039553A 2011-04-27 2011-04-27 Double-sided tray KR20120121637A (en)

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Application Number Priority Date Filing Date Title
KR1020110039553A KR20120121637A (en) 2011-04-27 2011-04-27 Double-sided tray

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110039553A KR20120121637A (en) 2011-04-27 2011-04-27 Double-sided tray

Publications (1)

Publication Number Publication Date
KR20120121637A true KR20120121637A (en) 2012-11-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190000603U (en) * 2017-08-30 2019-03-08 김운수 Pakaging structure of weighting parts with hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190000603U (en) * 2017-08-30 2019-03-08 김운수 Pakaging structure of weighting parts with hole

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