JP4188706B2 - Simple train - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a simple tray suitable for storing meat, seafood and the like sold at supermarkets and convenience stores, and more particularly, a thin flexible member such as a film sheet member. Alternatively, the present invention relates to a simple tray that can be easily manufactured using a tubular sheet material or the like.
[0002]
[Prior art]
In stores such as supermarkets and convenience stores, fruits, vegetables and the like are sold in a packaging bag formed of a transparent film or stored in a tray made of a polystyrene foam material. Various packaging bags and foamed polystyrene trays are commercially available and used depending on the application, and are often found in the patent literature. (For example, Patent Documents 1 and 2).
The packaging bag described in Patent Document 1 includes a bag body formed in a bag shape in which a base sheet and a transparent film are laminated and the periphery is sealed and one side is open, and the transparent film is a bag body. It consists of a flap part provided continuously from the opening end part, and the flap part is formed so as to be able to be fixed to the base sheet. The food storage tray of Patent Document 2 has a tray body formed of a plastic film or a sheet material, and a cushion material integrally attached to the inner bottom surface.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-059742 (page 1-2, FIG. 2)
[Patent Document 2]
Japanese Patent Laid-Open No. 11-079252 (page 1-2, FIG. 1)
[0004]
Among the trays, a polystyrene foam tray is often used and occupies the mainstream of the tray. The reason is that the fired polystyrene tray is lightweight and convenient to carry while having a predetermined thickness, and since it does not deform, it can hold the stored item in its stored state and protect it from external forces. It is. On the other hand, since it is thick, it is bulky during transportation and storage, and it is not easy to print the names of stored items during production. For this reason, printing of product names, producer names, and the like has only to stick a piece of paper printed elsewhere on a tray or stamp it. Furthermore, in recent years, the use of plastic products in plastic products has been contributing to the destruction of the global environment due to the generation of carbon dioxide by incineration and the accompanying global warming and generation of dioxins. There is an urgent social demand to minimize the amount of waste or to efficiently dispose of it. As part of this request, plastic products are separated and collected as resource waste, and the activities for recycling and using them are also popular. However, there is a limit to making the collection of plastic products well-known and thorough, and it may be cumbersome for some households, so plastic products are routinely discharged as household waste, or while being aware of the separate collection of plastic products. However, it was not uncommon to accidentally dispose of it as household waste.
[0005]
[Problems to be solved by the invention]
In this situation, if many styrene foam trays continue to be sold and used in the future, it will become more difficult to solve environmental problems and accelerate environmental destruction. For this reason, research and development of environmentally friendly trays are being promoted in place of polystyrene foam trays. As one of the countermeasures, Patent Document 1 proposes a tray using another material instead of the expanded polystyrene material. However, since this tray is manufactured by thermoforming such as pressure-vacuum formation, not only is it cumbersome to manufacture, but the manufacturing cost is high, and it is easy if expensive equipment is required and there is no such equipment. Cannot be manufactured. Moreover, since the cushioning material made of foamed steel is integrally attached to the bottom surface in the tray, the foamed steel material cannot be reduced as much as expected.
[0006]
Further, the food packaging bag of Patent Document 2 has a problem. This is because the packaging bag is made of a film-like sheet material, so that the thickness is thin and the protection of the stored item is not sufficient, or the opening of the bag is always closed, so the insertion of the stored item is troublesome, That is, for example, when trying to store groceries or the like in a bag, hold the bag in an open state with one hand and store the contents with the other hand, or borrow another person's hand. Therefore, this storage operation is extremely troublesome.
[0007]
The present invention has been made to solve these problems,
An object of the present invention is to provide a simple tray that is easy to manufacture with a small amount of material using a flexible sheet member.
Another object of the present invention is to provide a simple tray that uses a flexible sheet member and is less likely to lose its shape and has a buffering function.
[0008]
[Means for Solving the Problems]
The above object can be achieved by the following configuration.
[0009]
The simplified tray of the present invention has a substantially flat bottom wall having a predetermined width and length, and both ends in the length direction of the bottom wall are cut to a predetermined length, and the remaining portion is connected to the bottom wall. And a pair of side walls standing upright and facing each other with a predetermined width, and the longitudinal direction of the flexible tubular sheet member from both ends that are separated from each other by a predetermined distance from the upper and lower closed surfaces in the longitudinal direction. Each sheet is cut by cutting a predetermined length substantially parallel to the axis of the direction, fixing the central part of both ends where the cut is made, and cutting the central part into two sheet pieces in the longitudinal direction. A piece is formed with the bottom wall and a side wall where both ends of each upper side wall where the side walls are cut are fixed to each other, and the side walls to which the both ends of the sheet piece are fixed are separated from each other and opened. while forming a part, longitudinal side wall of the bottom wall By bending the ends of the unconnected bottom wall is inserted into the opening, with is respectively projected from the upper end of the solid attachment part to a predetermined length upwards, flat bottom wall by expanding the folded portion It is shaped to be
[0010]
Further, the simplified tray of the present invention has a substantially flat bottom wall having a predetermined width and length, and opposite side portions in the length direction of the bottom wall, each being cut at a predetermined length, and the remaining portions. A peripheral side wall that is integrally connected and has a predetermined length and is raised at a predetermined angle from the outer peripheral edge of the bottom wall, and the bottom wall and each side wall are formed of a single flexible sheet member; The peripheral side wall has a cut portion with the bottom wall extending a predetermined length below the outer peripheral edge of the bottom wall, and the extended peripheral side wall is bent in the vicinity of the outer peripheral edge. It is characterized by being in contact with.
[0011]
The sheet member having flexibility is a film-like sheet material or a tube-like sheet material, and a reinforcing means is applied to the film-like sheet material or the tube-like sheet material, and the flexibility sheet is further provided. It is preferable that a tubular sheet material is used for the member, and a predetermined amount of air is enclosed in the bottom wall or / and the side wall.
[0012]
Each of these simple trays is manufactured by using a flexible sheet member and bending the sheet material, partially cutting it, or fixing a part thereof. Therefore, specially complicated machines and equipment are not required for tray production.
In addition, since a flexible sheet material is used, the amount of material used can be significantly reduced, for example, from a quarter to one tenth, compared to a tray using a conventional foamed polystyrene material. In addition, any printing can be performed on the sheet material, and the tray contents, the product name, the price, and the like can be easily printed or attached to the front end portion. Further, the tray material can be easily prevented from being deformed by doubling the sheet material and interposing cardboard or the like between them. Furthermore, by using a tube-like sheet material, not only can a similar cardboard or the like be inserted into the tube for reinforcement, but a predetermined amount of air is sealed in the bottom wall and / or side wall. Also, a buffer function can be provided.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a simple tray of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a first embodiment of a simple tray of the present invention, and FIG. 2 is a schematic view showing a method for producing the simple tray of FIG.
The simple tray 1 has a substantially flat bottom wall 2 having a predetermined width and length, and a portion near the both ends in the length direction of the bottom wall 2 is cut to a predetermined length. It consists of a pair of side walls 3a and 3b that are connected together and have a predetermined width and stand up at a predetermined angle from the peripheral edge of the bottom wall 2, and each of the bottom wall 2 and each side wall 3a, 3b is a flexible sheet. The opposite side walls 3a and 3b are fixed to the opposite side walls 3c and 3d and 3e and 3f so that the opposing surfaces of the side walls are joined to each other. The end portions 2a, 2b, 2c and 2d of the bottom wall 2 which are cut from the respective side walls 2 and are not connected to these side walls have a predetermined length from the upper ends of the side walls 3a and 3b near the fixing portions 5 and 6, respectively. It protrudes upward.
[0014]
The size of the bottom wall 2 and the lengths and widths of the side walls 3a and 3b are selected to have an arbitrary size and length depending on the use of the simple tray. For example, in the case of a tray for storing a long product such as vegetable eggplant or cucumber, the bottom wall is elongated, the side wall width is relatively short, and the length is relatively long. Further, the front end portions 2a to 2d of the bottom wall 2 protrude upward from the upper ends of the side walls 3a and 3b in the vicinity of the fixing portions 5 and 6 by a predetermined length. When the object is stored, the length of each of the tips 2a and 2b, 2c and 2d is selected so as not to slip through the upper ends of the side walls 3a and 3b in the vicinity of the fixing parts 5 and 6 according to the weight of the stored object.
[0015]
For the flexible sheet member, for example, paper, wood, a synthetic resin film, a sheet material in which a synthetic resin material is laminated on paper, or a tube-shaped sheet material made of a synthetic resin film is used. .
If the bottom wall 2 and each side wall 3a, 3b are formed with the film-like sheet material which consists of synthetic resins, the bottom wall 2 and each side wall 3a, 3b will become flexible and will be easy to lose shape. In order to reduce this loss of shape, the sheet material is doubled and thick paper or the like is interposed therebetween to reduce the loss of shape of the tray. Further, an insole is laid on the bottom wall 2 in the completed tray, or a reinforcing member made of cardboard or the like is attached to the side surfaces of the side walls 3a and 3b, or one or more side walls are folded at a predetermined width and length. Reduces shape loss by fixing and reinforcing.
Further, when the simple tray 1 is formed of a tubular sheet material made of a synthetic resin film or the like, a predetermined amount of air is sealed in the bottom wall 2 and / or the side walls 3a and 3b. By sealing the air, the shape of the tray 1 is reduced and the bottom wall 2 and the side walls 3a and 3b serve as buffer members. Therefore, the buffer member can protect the stored items in the tray.
Furthermore, since the tip 2a~2d of the bottom wall 2 is protruded to an upper end of each side wall 3a, 3b, any displayed here, for example, product name of the storage material may be subjected to prices. This display may be pre-printed on the sheet material or may be affixed with pre-printed tags.
[0016]
The simple tray 1 is manufactured, for example, by the following method.
As shown in FIG. 2 (a), a sheet material having a predetermined length and width, for example, a rectangular sheet material is used and folded in two from the center. Next, in the longitudinal direction along the horizontal line at a predetermined distance y away from the stacked sheet piece 1a and fold line a (note that the fold line a is also the center line of the rectangular sheet material). Cuts x and x ′ are made from both ends over a predetermined length, and the bottom wall 2 and the side wall 3 are divided in the vicinity of both ends. Then, the opposing portions at both end portions of the side wall 3, that is , the end portions 3c and 3d, and the end portions 3e and 3f are bonded to each other by using appropriate fixing means , and fixed portions 5, 6 is formed . The length y from the crease a to each of the notches x and x ′ forms the width of the bottom wall 2 of the simple tray 1, and if the length y increases, the width of the bottom wall 2 increases. On the contrary, if the length becomes shorter, the width becomes shorter, and this length is selected to an arbitrary length according to the use of the tray. Further, the lengths of the notches x and x ′ are substantially the same length, and this length is also selected to be an arbitrary length like the length y.
[0017]
As the fixing means, any means is used depending on the type of the sheet material. For example, when the sheet material is paper, sticking with glue or the like, and when the sheet material is a synthetic resin material, heat welding means is used. Used.
[0018]
After fixing both end portions of the side walls 3a and 3b, the front end portions 2a and 2b and 2c of the bottom wall 2 are formed by separating the side walls 3a and 3b of the folded sheet piece 1a to form an opening therebetween. And 2d are bent from the lower side of the notches x and x ′, that is, in the directions of the arrows A and A ′ shown in FIG. 5B, by bending the tips 2a, 2b and 2c and 2d of the bottom wall 2 , respectively. Are pulled up so that the tips of the tip portions 2a and 2b, 2c and 2d are located above the side walls 3a and 3b in the vicinity of the fixing portions 5 and 6, and at the same time, the fold portion a is expanded and the bottom wall 2 is flat. To complete the simple tray shown in FIG.
[0019]
This simple tray has the following advantages. That is, since a flexible sheet material is used, the amount of material used can be significantly reduced, for example, from a quarter to one tenth, compared to a tray using a conventional foamed polystyrene material. In addition, any printing can be performed on the sheet material, and the tray contents, the product name, the price, and the like can be easily printed or attached to the front end portion.
Further, the tray material can be easily prevented from being deformed by doubling the sheet material and interposing cardboard or the like between them. Furthermore, by using a tube-like sheet material, not only can a similar cardboard or the like be inserted into the tube for reinforcement, but a predetermined amount of air is sealed in the bottom wall and / or side wall. Also, a buffer function can be provided.
Further, the manufacturing method can be manufactured by bending, partially cutting, or fixing a part of the sheet material, so that it can be manufactured very easily without requiring any special complicated machine or equipment.
[0020]
In the simple tray 1, the shape of the sheet piece 1a forming the bottom wall and the side wall is folded in two, and the length of the bottom wall 2 and the side wall 3 in the longitudinal direction is almost the same length. However, the sheet can be formed by using a sheet material in which the length of the bottom wall 2 is longer than the length of the side wall 3.
FIG. 3 shows a second embodiment of the simplified tray of the present invention, where FIG. 3A is a side view of the sheet material, and FIG. 3B is an external perspective view of the simplified tray.
This simple tray 1 ', the unlike sheet pieces 1a of fabricating a simple tray 1, in a state where the two-folded bottom wall 2' length of using sidewalls 3 'sheet piece 1a was longer than the length of the' To produce. Even if this sheet piece 1a ′ is used, the manufacturing method is the same as the manufacturing method shown in FIG. 2. Therefore, the structure of each part of the simple tray 1 ′ is the same as that of the simple tray 1, and this code is marked with a dash. Description is omitted.
Compared to the simple tray 1, the simple tray 1 ′ manufactured using the sheet piece 1a ′ has a length of each of the front end portions 2a ′ to 2d ′ of the bottom wall 2 ′ so that the side walls 3a ′, It protrudes above both ends of 3b '.
Therefore, by making the length of the bottom wall 2 'longer than the length of the side wall 3', the length of the front end portions 2a 'to 2d' becomes longer, so when an object is stored in the simplified tray 1 ', The tip portions 2a ′ and 2b ′, 2c ′ and 2d ′ are prevented from slipping from the upper ends of the side walls 3a ′ and 3b ′ in the vicinity of the fixing portions 5 ′ and 6 ′ due to the weight of the stored items. In addition, by using the long tip portions 2a ′ to 2d ′, it is possible to attach arbitrary prints, for example, the names of goods, prices, etc., to the tip portions 2a ′ to 2d ′.
[0021]
FIG. 4 is a perspective view showing a third embodiment of the simple tray of the present invention, and FIG. 5 is a schematic view showing a method for producing the simple tray of FIG.
The simplified tray 10 has a substantially flat bottom wall 12 having a predetermined width and length, and both sides perpendicular to the length direction of the bottom wall 12 are cut at a predetermined length, and the remaining portions (this portion Is a peripheral side wall 13a, 13b that is integrally connected with each other at a predetermined angle from the outer peripheral edge of the bottom wall 12 and is integrally connected with each other at a predetermined length. The bottom wall 12 and the side walls 13a and 13b are formed of a single flexible sheet member. The material of the sheet material is the same as that of the simple tray 1. The peripheral side walls 13a and 13b have a cut portion with the bottom wall 12 extending a predetermined length below the outer peripheral edge of the bottom wall 12, and the extended peripheral side wall 13 is bent in the vicinity of the outer peripheral edge. Is in contact with the inner bottom wall surface. Reference numeral 15 denotes a fixing portion that connects the upper and lower portions of the bottom wall 12.
[0022]
The simple tray 10 is manufactured by the following method, for example.
The simple tray 10 uses, for example, a sheet piece 10a obtained by cutting a tubular sheet material with a predetermined width. As shown in FIG. 5A, the shape of the tubular sheet piece 10a is such that the outer shape of the side surface is substantially rectangular, both end portions in the longitudinal direction are fixed, and the portion orthogonal to the longitudinal direction is fixed. The sheet material is simply in contact . Next, a notch x having a predetermined length from the lower end portion to the upper end portion of the sheet piece along a line perpendicular to the longitudinal direction at a position of a predetermined length z, z from both ends in the longitudinal direction of the sheet piece 10a , x ′ is inserted, and the lower end of the sheet piece between the notches x and x ′ is fixed.
Next, the side walls 13a and 13b are separated from each other as shown in FIG. 5B to open the tube, and the sheet piece 10a is turned upside down as shown in FIG. 5C. In this fall state, the opening part is turned over from both ends in the longitudinal direction along the arrows A and A ′ so that the fixing part 15 of the bottom part 12 moves downward and the inner walls of the side walls 12a to 12d move outwardly. The shape is formed flat, and the portion provided with the side wall incision is brought into contact with the upper surface of the bottom wall 12, and the fold portions a and a ′ are widened to form the bottom 12 so that the bottom portion 12 becomes flat. The simple tray 10 shown in FIG.
[0023]
In this simple tray 10, the cut portions x and x ′ are substantially perpendicular to the longitudinal direction of the sheet piece, but this angle is changed, for example, to a predetermined angle with respect to the longitudinal direction, for example, a reverse C shape. It is possible to form a sheet piece that is opened and provided with a cut portion having a predetermined length and the length of the bottom wall portion is changed.
6A and 6B show a fourth embodiment of the simplified tray of the present invention, in which FIG. 6A is a side view of a sheet piece , and FIG. 6B is an external perspective view of the simplified tray.
The sheet piece 10a ′ for producing the simple tray 10 ′ is different from the sheet piece 10a for producing the simple tray 10 in that the cut portion is at a predetermined angle with respect to the longitudinal direction, for example, reverse half-width, in the folded state. Cut portions x and x ′ having a predetermined length are provided so as to open in a U-shape, and both end tips 12a ′ and 12b ′ and 12c ′ and 12d ′ of the bottom wall 12 ′ are longer than the central portion. Since the manufacturing method is the same as the manufacturing method shown in FIG. 5 using this sheet piece 10a ′, the structure of each part of the simple tray 10 ′ is given the same reference numeral as that of the simple tray 10 and a dash is added to the reference symbol. Description is omitted. According to this simple tray 10 ′, the front end portions 12a ′ and 12b ′ and 12c ′ and 12d ′ of the bottom wall 12 ′ are in contact with the inner surface of the bottom wall longer than the center portion, and the stored items are stored in the tray. The tray stabilizes when the is stored.
[0024]
Each of the simple trays is manufactured by bending a sheet piece obtained by cutting a sheet material into a predetermined length and fixing a predetermined portion. These sheet pieces are obtained by using a tubular sheet material. A plurality of sheet pieces can be efficiently created. FIG. 7 is a process diagram showing a method for producing this sheet piece.
First, a sheet material (not shown) manufactured in a tube shape in advance is used, and the tube-shaped sheet piece 100 having a size in which two sheet pieces are formed is cut from the sheet material. FIG. 1A shows one of the cut tubular sheet pieces. The tubular sheet piece 100 has a substantially rectangular side shape. Using this tubular sheet piece 100, cuts x of a predetermined length are made at both ends 100b and 100d in the longitudinal direction. The notches x are formed by being cut by arbitrary cutting means 150 along dotted lines L _{1 to} L ₄ that are separated from the upper and lower end surfaces 100 a and 100 c by a predetermined distance and substantially parallel to the longitudinal axis. Next, as shown in FIG. 2B, the central portions 100b ′ and 100d ′ at both ends are fixed using appropriate fixing means 151, respectively. FIG. 2C shows a tubular sheet piece 100 on which the fixing portions 101 and 102 are formed. From the tubular sheet piece 100, any one of the sheet pieces 1a and 10a shown in FIGS. it can.
[0025]
FIG. 8 shows a method of forming one sheet piece 1a using the tubular sheet piece 100, and FIG. 9 shows a method of forming another sheet piece 10a.
8 (a) shows the tubular sheet piece 100 fabricated in the step of FIG. 7, using a suitable cutting means 150 along a line indicating the sheet piece 100 by a dotted line L ₅ of the substantially central portion in the longitudinal direction And cut.
By this cutting, the tubular sheet piece 100 is divided into upper and lower parts to form two sheet pieces 100 ′. (FIGS. 8B and 8C). These sheet pieces 100 ′ become two sheet pieces 1a.
Further, as shown in FIG. 9 (a), (b) , a direction orthogonal to the longitudinal direction, by cutting along the dotted line L _6, a sheet piece 10a can two simultaneously formed. (FIG. 9 (c)).
[0026]
【The invention's effect】
As described in detail above, according to the simple tray of the present invention, a simple tray with a simple configuration can be easily manufactured with a single sheet member having flexibility. In addition, it is possible to provide a buffering function with a simple configuration with little loss of shape. More specifically, since the simple tray of the present invention can be formed of a flexible sheet material, it can be easily manufactured by simply bending or using an appropriate fixing means without the need for specially expensive equipment. it can. In addition, the amount of material used for the tray can be extremely reduced compared to conventional foamed polystyrene trays. As a result, saving resources and handling during transportation are simplified, storage space is not required, and the amount of materials used is remarkably reduced, which makes it possible to eliminate disposal, especially pollution, and is environmentally friendly. .
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of a simple tray of the present invention.
FIG. 2 is a schematic view showing a manufacturing method of the simple tray of FIG. 1;
3A and 3B show a second embodiment of the simplified tray of the present invention, in which FIG. 3A is a side view of a sheet piece , and FIG. 3B is an external perspective view of the simplified tray.
FIG. 4 is a perspective view showing a third embodiment of a simple tray of the present invention.
FIG. 5 is a schematic diagram showing a method for manufacturing the simple tray of FIG. 4;
6A and 6B show a fourth embodiment of the simplified tray of the present invention, where FIG. 6A is a side view of a sheet piece , and FIG. 6B is an external perspective view of the simplified tray.
FIG. 7 is a process chart showing a method for producing a sheet piece.
FIG. 8 is a process diagram showing a method of forming one sheet piece 1a using the sheet piece of FIG.
FIG. 9 is a process diagram showing a method of forming another sheet piece 10a using the sheet piece of FIG.
[Explanation of symbols]
1, 1 ', 10, 10' Simple tray 1a, 1a ', 10a, 10a' Sheet piece 2, 2 ', 12, 12' Bottom wall 2a-2d, 2a'-2d ', 12a-12d Tip 3a- 3f, 3a 'to 3f', 13a, 13b, side walls 5, 6, 5 ', 6' fixing part x, x 'notch y length 100 tubular sheet piece

Claims (5)

A substantially flat bottom wall having a predetermined width and length, and both end portions in the length direction of the bottom wall are cut to a predetermined length, and the remaining portions are connected to the bottom wall to have a predetermined width. A pair of side walls standing upright and facing each other,
Cut a predetermined length from both ends of the tubular sheet member having flexibility, which are separated from each other by a predetermined distance from the closed upper and lower end surfaces in the longitudinal direction, approximately in parallel with the longitudinal axis. By fixing the central portion of the both end portions and cutting the central portion into two sheet pieces in the longitudinal direction, each sheet piece is connected to the both ends of each side wall on the bottom wall and each side wall above the side wall . Formed of side walls secured to each other,
The end of the bottom wall that is not connected to the side wall in the longitudinal direction of the bottom wall is bent while pulling apart the side walls to which the both ends of the sheet piece are attached to form an opening therebetween. A simple tray , which is inserted into the opening , protrudes upward from the upper end of the fixing portion by a predetermined length, and is formed so that the bottom wall becomes flat by expanding the fold portion . A substantially flat bottom wall having a predetermined width and length, and opposite side portions in the length direction of the bottom wall are cut at a predetermined length, and are integrally connected at the remaining portions, thereby having a predetermined length. And a peripheral side wall standing upright at a predetermined angle from the outer peripheral edge of the bottom wall, the bottom wall and each side wall are formed by a sheet member having flexibility, and the peripheral side wall is cut from the bottom wall. The portion extends downward from the outer peripheral edge of the bottom wall to a predetermined length, and the extended peripheral side wall is bent in the vicinity of the outer peripheral edge and is in contact with the inner bottom wall surface of the bottom wall. Simple tray. The simple tray according to claim 1 or 2, wherein the sheet member having flexibility is a film-like sheet material or a tube-like sheet material. The simple tray according to claim 3, wherein reinforcing means is applied to the film-like sheet material or the tube-like sheet material. 3. The simple tray according to claim 1, wherein a tube-shaped sheet material is used for the flexible sheet member, and a predetermined amount of air is sealed in the bottom wall or / and the side wall.

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