JP2007269373A - Container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container for storing many trays having a metal bottom face prevented from damaging a floor, etc. by directly contacting with the floor when the container is placed on the floor, etc. <P>SOLUTION: A tray 60 stored on a pallet is provided with a bottom face member 62 for an item 66 to be stored is placed thereon and a side wall member 61 placed on the periphery of the member 62. The member 61 is provided with a leg 64 downwardly protruded from the member 62 securing a gap 68 under the member 62 and a catching part 63 where the front 62 of the upper stage tray 60 is placed and caught when the trays are stacked. A slippage preventive member 56 is placed on the pallet in the gap under the member 62 of the bottommost tray stacked on the pallet. By this, the position of the leg of the try is regulated from the inside of the tray and the position of the tray 60 on the pallet is regulated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a container suitable for use in transporting, for example, a thin plate-like glass or resin, or a film used for manufacturing a display device or the like.

In flat display devices such as liquid crystal display devices and plasma display devices, it is necessary to store and transport the substrate so that the glass substrate is not damaged and the substrate surface is not contaminated in the manufacturing process. There is a need for a container suitable for transporting substrates. However, conventionally, there has been no container that can be appropriately transported without damaging a thin plate such as a glass substrate and further preventing the substrate surface from becoming dirty. Further, in the conventional container, since the opening is provided in the upper part of the container, it is necessary to insert the thin plate from above and take it out from above, and it is difficult to put it in and out of the container without breaking the thin plate. . Thus, as a container suitable for transporting such a thin plate, a thin plate container is disclosed in which the thin plate can be taken out from the side of the container (see, for example, Patent Documents 1 and 2).
JP 10-310145 A JP 2003-40271 A

In these thin plate containers, the thin plates are placed vertically and are accommodated inside the container. Therefore, in the case of a thin plate having a small area, it can be transported satisfactorily without causing problems such as deflection. However, in recent years, the size of a glass substrate used with the enlargement of the display screen of a flat display device has increased, and when a thin plate is placed vertically inside a container, deflection or the like has occurred. In order to prevent bending, it is necessary to arrange the thin plates at a sufficient interval, but with such a method, the number of glass substrates that can be accommodated in the container is reduced, making it difficult to efficiently carry Become. On the other hand, when a thin plate such as a glass substrate is simply placed horizontally in a container, there is a problem that the thin plate breaks. Furthermore, as such a large glass substrate is handled, there is a strong demand for directly storing the glass substrate in the container and taking out the glass substrate from the container at a place where the glass substrate is processed, such as a clean room. ing.
As a container that can cope with such a problem, the applicants have proposed a container in which a small number of thin glass sheets are accommodated in a tray, and the tray is placed in a transport container in a state of being placed on a pallet. (See Patent Document 3).
JP 2005-104530 A

By the way, as a tray for accommodating a small number of thin glass sheets or the like, a tray in which a resin side wall is formed around a metal lower surface (bottom surface) member is generally used. In particular, when a large glass plate or the like is accommodated and transported, a tray using a metal member may be used as a lower surface member that mainly supports the contents because the glass plate is easily damaged and is heavy. .
However, the tray whose lower surface is made of a metal member comes into contact with the floor surface of the manufacturing site or the like when the tray is taken out of the container, for example. Considering transporting thin glass used for liquid crystal display devices with such a tray, it is highly possible that the tray is taken out and supplied to a production line in a clean room. In the conventional tray as described above, The lower surface of the tray made of a metal member is placed in direct contact with the floor surface of the clean room.

Such a state is not preferable in various respects.
For example, if the metal lower surface member of the tray is in direct contact with the floor surface of the clean room, the floor surface of the clean room may be damaged. In particular, when the metal lower surface member of the tray and the resin side wall are connected by screws, the head portion of the screw may protrude further downward from the lower surface of the tray. If there is a protrusion, damage to the floor surface of a clean room or the like becomes more serious.
In addition, if the floor surface of a clean room is damaged, dust scraped from the damaged part will be generated in the clean room, the cleanliness in the clean room will be reduced, and the clean room processing and product quality will be adversely affected. May affect.
Further, if the metal lower surface member of such a tray, which is a hard member, and the floor surface of the clean room come into contact with each other, the tray itself may be damaged.

  In addition, such a tray may be placed and transported directly on a transport roller such as a production line or a transport line. In this case, if the lower surface of the tray is a metal member, This is not preferable because it may damage the roller for use.

  The object of the present invention is to contact the floor surface or the like of the place where the metal lower surface is directly placed even when the object such as a thin plate-like article is accommodated and placed on the floor surface or the like. It is possible to accommodate a large number of trays suitable for accommodating thin plate-like articles that do not damage the articles, etc., and to appropriately transport the many trays without damaging the contents. Is to provide a simple container.

In order to achieve the above object, the container according to the present invention is:
A palette,
A plurality of side plates mounted along the periphery of the pallet so as to form an accommodation space on the pallet;
An upper lid mounted on the upper sides of the plurality of side plates so as to close the upper opening of the housing space;
A container having a tray that accommodates desired contents and is stacked as necessary and accommodated in an accommodation space on the pallet,
The tray is
A lower surface member on which the accommodation is placed;
A side wall member disposed around the lower surface member, wherein a foot projecting downward from the lower surface member so as to secure a gap below the lower surface member, and an upper stage when the tray is stacked A side wall member having a locking portion on which the foot portion of the tray is placed and locked, and
The position of the foot portion of the tray is defined from the inside of the tray by the displacement preventing member disposed on the pallet in the gap below the lower surface member of the lowermost tray placed on the pallet. The position of the tray on the pallet is defined.

  Preferably, the side wall member of the tray is made of resin, and the lower surface member is made of metal.

  Preferably, the shift prevention member is installed on the pallet so that the position thereof can be changed.

Also preferably, the container according to the present invention is:
An external palette,
A plurality of side plates mounted along the periphery of the external pallet so as to form an accommodation space on the external pallet;
An upper lid mounted on the upper sides of the plurality of side plates so as to close the upper opening of the housing space;
An internal pallet placed on the external pallet in the housing space,
The tray is placed on the internal pallet.

  According to the present invention, for example, even when a container such as a thin plate-like article is accommodated and placed on a floor surface or the like, the floor surface comes into contact with the floor surface or the like where the metal lower surface is directly placed. A container that can accommodate a large number of suitable trays by accommodating thin plate-like articles that do not damage etc., and that can properly transport a large number of trays without damaging the contents Can be provided.

Hereinafter, the present invention will be described based on embodiments shown in the drawings.
FIG. 1 is an exploded perspective view of a container according to an embodiment of the present invention,
FIG. 2 is an exploded perspective view showing a mounting structure of the side plate and the external pallet,
FIG. 3 is an exploded perspective view showing the accommodation state of the internal pallet, tray and presser plate,
FIG. 4 is a diagram for explaining a locking state between the inner pallet and the convex member of the bottom plate on the outer pallet;
FIG. 5 is a diagram for explaining a method of installing a convex member,
FIG. 6 is a diagram for explaining a tray, a placing method on the internal pallet, and a stacked state thereof,
FIG. 7 is a first diagram for explaining the installation method of the slip prevention member,
FIG. 8 is a second view for explaining the installation method of the slip prevention member,
FIG. 9 is a diagram for explaining another method of placing the tray.
FIG. 10 is a view for explaining another installation mode of the slip prevention member.

In the present embodiment, the present invention will be described by exemplifying trays and containers suitable for accommodating and transporting plate-shaped articles such as thin glass such as LCD panels and films.
As shown in FIG. 1, the container 2 of this embodiment has an external pallet 8 at the bottom. The external pallet 8 of this embodiment is formed with a lift hole 10 into which a forklift claw is inserted. The external pallet 8 is preferably made of a metal such as stainless steel, but can be made of a material other than a metal such as plastic.
On the external pallet 8, a bottom plate 12 made of, for example, a polypropylene plate is placed. The bottom plate 12 is provided with four convex members 40 that prevent displacement of an internal pallet, which will be described later, placed on the bottom plate 12 and define its position. The configuration and installation method of the convex member 40 will be described later.

A total of four side plates 14 and 16 including two opposing first side plates 14 and two opposing second side plates 16 are detachably mounted at four positions on the peripheral edge of the external pallet 8. On the external pallet 8, a space surrounded by the four side plates 14 and 16 becomes an internal space 18 for storing a desired storage object such as thin glass. Each of the four side plates 14 and 16 is composed of a single panel 15 made of metal or corrugated cardboard plastic or the like, and is foldable and detachable with respect to the external pallet 8 as will be described later. Yes.
In addition, a rectangular upper lid 20 is detachably attached to the upper ends of the side plates 14 and 16 by an upper stopper 22 in order to close the upper opening of the internal space 18 surrounded by the bottom plate 12 and the side plates 14 and 16. The upper lid 20 is also made of a material such as metal or cardboard plastic.

At the four corner positions on the outer pallet 8, lower metal fittings 24 are erected, and strip-shaped metal fittings 36 are installed along the periphery of the external pallet 8 so as to connect the lower metal fittings 24.
As shown in FIG. 2, a locking piece 26 having a substantially L-shaped cross section is fixed inside each lower bracket 24, and is continuous with a vertical groove 28 extending in the vertical direction and a lower end portion of the vertical groove 28. Thus, a horizontal groove 30 extending in the horizontal direction is formed.

  On the other hand, metal side end metal frames 32 are mounted along the height direction on both side ends of the panel 15 constituting the first side plate 14. Each side end metal frame 32 has a function of reinforcing the panel 15. Further, each side end metal frame 32 is formed with a slide groove 34 into which both ends of the panel constituting the second side plate 16 shown in FIG. Further, a rotation projection 38 is provided at the lower end portion of the side end metal frame 32.

  As shown in FIG. 2, each rotation protrusion 38 is inserted into the vertical groove 28 of the lower metal fitting 24, and moved in the horizontal direction at the lower end portion of the vertical groove 28 (arrow A in FIG. 2). The piece 26 is prevented from coming off upward. Accordingly, the panel 15 constituting the first side plate 14 is prevented from coming upward with respect to the external pallet 8, and in this state, the panel 15 is allowed to rotate in the inner direction B of the container 2. . The rotation of the panel 15 to the outside of the container is restricted by the panel 15 coming into contact with the lower metal fitting 24, the locking piece 26 and the belt-like metal fitting 36 fixed on the external pallet 8.

  In addition, in the state where the two first side plates 14 are vertically installed on the opposite sides of the external pallet 8 as described above, the slide grooves 34 disposed to face each other on both sides of the opposed first side plates 14. The second side plate 16 is inserted into each. As a result, the first side plate 14 cannot be rotated in the inner direction B, and is fixed in a vertical state on the periphery of the external pallet 8. In addition, the two opposing second side plates 16 inserted in the slide groove 34 are also installed vertically on the opposite side of the external pallet 8 with both ends of the two first side plates 14 connected. The

  In the container 2 of the present embodiment, the internal pallet 42, the tray 60, and the presser plate 70 as shown in FIG. For example, a desired container such as thin glass is stored in the tray 60.

The inner pallet 42 is formed with a lift hole 44 into which a forklift claw is inserted, and is preferably made of a metal such as stainless steel as in the case of the outer pallet 8, but other than a metal such as plastic. It can also be made of a material.
As described above, the bottom plate 12 of the external pallet 8 is provided with a plurality of convex members 40 for defining the position of the internal pallet 42 and fixing the position of the internal pallet 42 on the bottom plate 12. When the plurality of convex members 40 are respectively fitted into the openings formed in the bottom surface of the base plate 42, the internal pallet 42 is locked to the convex members 40 within the floor surface of the bottom plate 12 and the position thereof is defined. That is, the position on the floor surface of the bottom plate 12 of the internal pallet 42 is fixed.

  For example, when the inner pallet 42 has a bottom shape as shown in FIG. 4, that is, when the inner pallet 42 is constituted by the member 46 and an opening 48 as a gap between the members 46 is formed on the bottom surface, It is preferable that the convex member 40 is formed in the same arrangement as shown in FIG. When the bottom opening 48 of the internal pallet 42 and the convex member 40 of the bottom plate 12 are engaged with each other in such an arrangement, the internal pallet 42 cannot move in any direction within the floor surface of the bottom plate 12. That is, the inner pallet 42 is locked to the convex member 40 and the position thereof is fixed, and the position of the inner pallet 42 does not shift on the bottom plate 12.

The method of installing the convex member 40 on the bottom plate 12 may be any method. For example, as shown in FIG. 5A, the convex member 40 may be fixed to the bottom plate 12 with a rivet 50. Further, as shown in FIG. 5B, the convex member 40 is projected to the front side of the bottom plate 12 through the opening 52 provided in the bottom plate 12, and the bottom plate 12 and the convex member are formed on the back surface of the bottom plate 12 as shown, for example. Forty leg portions may be adhered by an adhesive 53.
In the present embodiment, the convex member 40 is made of metal.

  In addition, it is preferable that the position of the convex member 40 be changeable. If it is set as such a structure, the type of the internal pallet 42 to be used can be changed only by changing arrangement | positioning of the convex member 40, and the change of the tray 60 and the change of things can also be performed easily. That is, the external pallet 8, the bottom plate 12, the side plates 14 and 16, and the upper lid 20 can be used in common regardless of the type of the internal pallet 42, the type of the tray 60, or the type of contents.

In order to change the position of the convex member 40, the convex member 40 needs to be configured to be detachable from the bottom plate 12. As the method, for example, openings 52 as shown in FIG. 5B are provided in the base plate 12 in advance at predetermined intervals or at predetermined positions according to the internal pallet 42 that may be used. According to the internal pallet 42, the convex member 40 may be protruded from the opening 52 at an appropriate position.
Alternatively, for each type of internal pallet 42 to be used, when the bottom plate 12 on which the convex member 40 is installed corresponding to the internal pallet 42 is prepared in advance and the internal pallet 42 to be used is changed, the bottom plate You may make it change the arrangement | positioning of the convex member 40 substantially by replacing 12 itself.

As shown in FIG. 6, the tray 60 includes a side wall member 61 and a bottom plate 62.
The side wall member 61 has an upper portion formed with a grip portion 63 protruding outward in the horizontal direction, and a lower portion formed with a foot portion 64 protruding further downward than the rear bottom plate 62 protruding outward in the horizontal direction. Has been. A notch 631 is formed in the upper surface corner of the gripping part 63. When the tray 60 is stacked, the notch 631 of the gripping part 63 is loaded on the notch 631 as shown in FIG. The foot portion 64 of the tray 60 to be engaged is just engaged. Such a gripping part 63, a foot part 64, and a notch part 631 are formed on the side wall member 61 on the entire periphery of the tray 60, and the foot part of the upper tray 60 to be stacked on the entire periphery of the tray 60. 64 is placed on the notch 631 of the lower tray 60, so that the upper and lower trays 60 to be stacked are fixed in the horizontal relative position. That is, the upper and lower trays 60 are stacked in the vertical direction and cannot be displaced in the horizontal direction relatively.

Further, in the side wall member 61 having such a configuration, a surface formed by a portion projecting outward in the horizontal direction forming the foot portion 64 of the side wall member 61, in other words, a surface forming the inner side of the foot portion 64 and being vertical. As shown in FIG. 6, a bottom plate 62 is installed by screws 67 with respect to a horizontal plane 641 that is a surface that faces downward in the direction. Therefore, the installation position of the bottom plate 62 is higher than the lowermost part of the foot part 64, and a lower space 68 is formed in the lower part of the foot part 64 of the tray 60. That is, the tray 60 is formed in a so-called “raised bottom” form.
Further, the gripping portion 63 of the side wall member 61 is used for hooking a finger when an operator lifts the tray 60 to carry it.
In the present embodiment, the side wall member 61 is made of resin, and the bottom plate 62 is made of metal such as aluminum.

Returning to FIG. 3, a bottom plate (inner bottom plate) 54 for mounting the tray 60 is mounted on the inner pallet 42, and the position of the tray 60 on the bottom plate 54 is defined on the upper surface of the bottom plate 54. Thus, a slip prevention member 56 for fixing the tray 60 is installed.
In the present embodiment, as shown, the trays 60 are stacked in two rows and placed on the bottom plate 54. As shown in FIG. 6, the slip prevention member 56 is disposed on the bottom plate 54 so as to be received in the lower space 68 below the bottom plate 62 of the lowermost tray 60 of the stacked trays 60. In the lower space 68, the foot 64 of the lowermost tray 60 is defined from the inside of the lower space 68.
In the present embodiment, as shown in FIG. 3, with respect to the corners of the lowermost trays 60 of the trays 60 stacked in two rows, the foot portions 64 on each of the two sides constituting the corners. A total of eight misalignment prevention members 56 are arranged so as to define the positions of the positions from the inside.

The installation method of the slip prevention member 56 on the bottom plate 54 may be any method. For example, as shown in FIG. 7A, the slip prevention member 56 may be fixed to the bottom plate 54 with a bolt 561 and a nut 562. In addition, as shown in FIG. 7B, by inserting the convex portion 541 provided on the bottom plate 54 into the concave portion 563 provided on the deviation prevention member 56, the deviation prevention member 56 is placed in the horizontal direction with respect to the bottom plate 54. It is good also as a structure which cannot move. On the contrary, as shown in FIG. 8 (A), the protrusions 562 provided on the displacement prevention member 56 are inserted into the recesses 542 provided on the bottom plate 54, so that the displacement prevention member 56 is in contact with the bottom plate 54. It is good also as a structure which cannot move to a horizontal direction. Further, as shown in FIG. 8B, the slip prevention member 56 may be fixed to the bottom plate 54 with a rivet 565.
In the present embodiment, both the bottom plate 54 and the slip prevention member 56 may be formed of arbitrary members such as resin, steel, aluminum, and stainless steel.

It is preferable that the position of the slip prevention member 56 be changeable. With such a configuration, it is possible to change the type of tray 60 to be used only by changing the arrangement of the slip prevention member 56.
In order to change the position of the slip prevention member 56, the slip prevention member 56 needs to be configured to be detachable from the bottom plate 54. As the method, for example, an opening into which a bolt 561 or a rivet 565 as shown in FIG. 7A or 8B can be inserted, a convex portion 541 as shown in FIG. 7B, or FIG. The recesses 542 as shown in A) are provided on the bottom plate 54 in advance at predetermined intervals or at predetermined positions according to the tray 60 that may be used, and at appropriate positions according to the tray 60 to be used. A shift prevention member 56 may be installed.

  Alternatively, for each type of tray 60 to be used, when the bottom plate 54 provided with the shift preventing member 56 is prepared in advance corresponding to the tray 60 and the tray 60 to be used is changed, the bottom plate 54 itself The arrangement of the displacement preventing member 56 may be substantially changed by replacing

Moreover, as a form of the slip prevention member 56, another form may be sufficient. For example, as shown in FIG. 9, a single plate-shaped displacement prevention member 56 corresponding to the inner circumference of the foot portion 64 of the tray 60, that is, the entire area of the lower space 68 of the bottom plate 62, is attached to the bottom plate 54 of the inner pallet. It may be placed on top, thereby defining the position of the tray 60 on the internal pallet 42.
When such a plate-shaped deviation preventing member 56 is used, a method for fixing the deviation preventing member 56 to the bottom plate 54 may be arbitrary.
For example, as shown in FIG. 10 (A), it may be fixed with bolts 561 and nuts 562, or as shown in FIG. 10 (B), provided in the recess 563 and the bottom plate 54 provided in the slip prevention member 56. The convex portion 541 may be fitted, or the convex portion 564 provided on the shift prevention member 56 and the concave portion 542 provided on the bottom plate 54 may be fitted as shown in FIG. May be. Further, although not shown, they may be fixed with rivets.

Returning to FIG. 3, a pressing plate 70 is placed on the upper portion of the group of trays 60 placed on the internal pallet 42 in the internal space 18 of the container 2. The presser plate 70 is a plate-like member having a size inscribed in the internal space 18 surrounded by the first side plate 14, that is, a size such that the outer dimension is substantially equal to the inner dimension of the inner space 18.
Further, a cushioning material 72 is mounted on the upper side of the presser plate 70, that is, between the presser plate 70 and the upper lid 20. The buffer material 72 is mounted so as to have a thickness that can fill the gap between the presser plate 70 and the upper lid 20. In other words, the cushioning material 72 is attached to the presser plate 70 so that the thickness thereof can be adjusted according to the amount (height) of the tray 60 accommodated in the container 2. For this purpose, for example, the buffer material 72 is configured by stacking buffer members having a predetermined thickness, and each buffer member is preferably configured to be easily detachable by, for example, a hook-and-loop fastener. The presser plate 70 may be made of any material, but is preferably an elastic member such as rubber.

  In this way, the holding plate 70 is disposed on the tray 60 in the internal space 18, and the cushioning material 72 is mounted between the holding plate 70 and the upper lid 20, so that the contents of the uppermost tray 60 are accommodated. Can be prevented from spilling or jumping out of the tray 60. Moreover, it is possible to prevent the stacked trays 60 themselves from vibrating in the vertical direction, and it is possible to more safely store and transport the stored items.

As described above, according to the container 2 of the present embodiment, the items to be stored are stored in the tray 60 individually or in an appropriate quantity and stored in the container. Can be done. On the other hand, since a large number of trays 60 can be accommodated in the container 2, even a high-damaged article such as thin glass can be accommodated in a large amount in a safe state that does not break. Can be transported.
In addition, since the large number of trays 60 are mounted on the internal pallet 42 and accommodated in the container 2, the trays 60 can be put in and out of the container 2 in a lump by using a forklift or the like. Can do. In addition, by using the internal pallet 42, a large number of trays 60 can be transported collectively to a place where dustproofness is required, such as a clean room or a production line.

In particular, as shown in FIG. 6, the tray 60 of the present embodiment has the tip of the foot portion 64 of the side wall member 61 disposed at a position further lower than the bottom plate 62. When placed on a flat floor or the like, the bottom plate 62 does not directly contact the floor. That is, the metal bottom plate 62 does not contact the floor surface, and only the lowermost end of the foot portion 64 of the resin side wall member 61 is installed on the floor surface.
Therefore, it is possible to prevent the metal member constituting the tray 60 from coming into direct contact with the floor surface, the transfer roller, etc., and damaging the floor surface, the transfer roller, etc.

  Moreover, the internal pallet 42 which can be accommodated in the container 2 can be changed only by changing the position of the convex member 40 installed on the bottom plate 12, and the position of the deviation preventing member 56 installed on the internal bottom plate 54 is changed. Only the type of tray 60 stacked on the internal pallet 42 can be changed. Therefore, the above-described safe and large-scale accommodation and transportation can be performed on any accommodation, and the convenience is greatly improved.

  Further, on the internal pallet 42, the displacement preventing member 56 that defines the position of the tray 60 defines the position of the tray 60 from the inside of the foot portion 64 of the tray 60 using the lower space 68 of the bottom plate 62 of the tray 60. is doing. Therefore, the tray 60 having the same size as the upper surface of the internal pallet 42 can be placed on the internal pallet 42.

  Further, since the vibration of the tray 60 is absorbed by the presser plate 70, the buffer material 72, and the like, the stored items can be more safely stored and transported.

The present invention is not limited to the above-described embodiment, and can be variously modified within the scope of the present invention.
For example, in the embodiment described above, the trays 60 are stacked and accommodated in the container 2 in two rows. However, the tray 60 may be accommodated in one row, or may be accommodated in three or more rows, and is not limited to two rows.

  In the embodiment described above, the convex member 40 is installed on the bottom plate 12 placed on the external pallet 8, and the frame member 56 is installed on the bottom plate 54 placed on the internal pallet 42. It was. However, the convex member 40 may be disposed substantially on the outer pallet 8, and the frame member 56 may be disposed substantially on the inner pallet 42, and is installed via the bottom plate 12 or the bottom plate 54. There is no need to do. Further, since the outer pallet 8 and the bottom plate 12 are substantially integrally formed, or because the inner pallet 42 and the bottom plate 54 are integrally formed, the convex member 40 and the frame member 56 are formed. Although it may be said that each is directly arrange | positioned to the external pallet 8 and the internal pallet 42, such a structure is naturally within the scope of the present invention. The external pallet and the internal pallet referred to in the claims of the present application include such cases (when the bottom plate 12 and the bottom plate 54 do not exist or when they are regarded as being integrated with each pallet). It is a broad concept.

FIG. 1 is an exploded perspective view of a container according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a mounting structure between the side plate and the external pallet. FIG. 3 is an exploded perspective view showing the housed state of the internal pallet, tray and presser plate. FIG. 4 is a diagram for explaining a locking state between the inner pallet and the convex member of the bottom plate on the outer pallet. FIG. 5 is a diagram for explaining a method of installing the convex member. FIG. 6 is a view for explaining a tray, a mounting method on the internal pallet, and a stacked state thereof. FIG. 7 is a first diagram for explaining the installation method of the slip prevention member. FIG. 8 is a second view for explaining the installation method of the slip prevention member. FIG. 9 is a diagram for explaining another method for placing trays. FIG. 10 is a view for explaining another installation mode of the slip prevention member.

Explanation of symbols

2 ... container 8 ... external pallet 10 ... lift hole 12 ... bottom plate 14 ... first side plate 16 ... second side plate 18 ... internal space 20 ... upper cover 22 ... upper bracket 24 ... lower bracket 26 ... engaging piece 28 ... Vertical groove 30 ... Horizontal groove 32 ... Side edge frame 34 ... Slide groove 36 ... Strip metal fitting 38 ... Rotating protrusion 40 ... Convex member 42 ... Internal pallet 44 ... Lift hole 46 ... Pallet member 48 ... Opening 50 ... Rivet 52 ... Opening 53 ... Adhesive 54 ... Bottom plate 56 ... Frame member 60 ... Tray 61 ... Side wall member 62 ... Bottom plate 63 ... Grip portion 64 ... Foot portion 68 ... Lower space 70 ... Presser plate 72 ... Buffer material

Claims (4)

A palette,
A plurality of side plates mounted along the periphery of the pallet so as to form an accommodation space on the pallet;
An upper lid mounted on the upper sides of the plurality of side plates so as to close the upper opening of the housing space;
A container having a tray that accommodates desired contents and is stacked as necessary and accommodated in an accommodation space on the pallet,
The tray is
A lower surface member on which the accommodation is placed;
A side wall member disposed around the lower surface member, wherein a foot projecting downward from the lower surface member so as to secure a gap below the lower surface member, and an upper stage when the tray is stacked A side wall member having a locking portion on which the foot portion of the tray is placed and locked, and
The position of the foot portion of the tray is defined from the inside of the tray by the displacement preventing member disposed on the pallet in the gap below the lower surface member of the lowermost tray placed on the pallet. A container characterized in that a position of the tray on the pallet is defined.   The container according to claim 1, wherein the side wall member of the tray is made of resin, and the lower surface member is made of metal.   The container according to claim 1, wherein the shift prevention member is installed on the pallet so that the position thereof can be changed. An external palette,
A plurality of side plates mounted along the periphery of the external pallet so as to form an accommodation space on the external pallet;
An upper lid mounted on the upper sides of the plurality of side plates so as to close the upper opening of the housing space;
An internal pallet placed on the external pallet in the housing space,
The container according to claim 1, wherein the tray is placed on the internal pallet.

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