JP4713121B2 - container - Google Patents

Description

  The present invention relates to a container suitable for storing and transporting articles, and more particularly to a container suitable for use as a returnable box for transporting articles.

  Conventionally, corrugated cardboard containers, plastic containers, etc. have been used for transporting goods. However, disposal is difficult because it is difficult to dispose of the container once it has been used once. Generally used.

  Plastic containers are generally used as returnable boxes because they require strength such as high strength and easy cleaning. However, it is not economical to transport empty returnable boxes, so they are folded. Folding containers that can be made smaller and easy to assemble have been used.

Various types of folding containers have been studied. For example, a pair of side plates that close each other between two opposing upper and lower sides of a rectangular frame and an upper frame and a bottom plate that face each other. And a folding container having a hexahedron structure including a pair of tilt plates, the upper portion of the tilt plate is connected to the upper frame so as to be rotatable inside the container, and between the upper frame and the bottom plate on which the side plates are provided. The hinge part is composed of a pair of upper and lower hinge plates which are connected to the upper frame and the bottom plate so as to be rotatable inside the container, and are connected so as to be bent inward at the connecting portion of the intermediate portion in the vertical direction. And a folding container is proposed in which the upper hinge plate of the hinge part and the side plate are integrally rotated (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2004-231259

  However, the folding container has the disadvantage that the mechanical strength is weak and fragile due to the pivoting part and hinges of the tilt plate and the upper frame. To increase the strength, the pivoting part and the hinges are thick (or thick). In other words, other parts such as a tilt plate and a bottom plate also need to be thickened, resulting in a disadvantage that they become heavy.

  An object of the present invention is to provide a container that is light in weight, strong in strength, excellent in heat insulation, easy to assemble and disassemble, and that can be suitably used as a returnable box in view of the above-mentioned drawbacks.

  The container of the present invention has a hollow plate-shaped side wall in which a thin plate and a back thin plate are laminated via a large number of plate-shaped ribs arranged substantially in parallel to form a ventilation path. It is characterized by being erected around the bottom wall so as to be substantially horizontal to the bottom wall.

  The side wall is a hollow plate-like side wall in which an air passage is formed by laminating a front thin plate and a back thin plate through a large number of plate-like ribs installed substantially in parallel.

  The material constituting the front thin plate, the back thin plate and the plate-like rib is preferably one having mechanical strength, for example, a polyolefin resin such as polypropylene resin, a polyvinyl chloride resin, a polystyrene resin, a polyacrylic resin, ABS resins, polyfluorinated resins, polycarbonate resins, polyester resins, polyarylate resins, epoxy resins, silicone resins, polyimide resins, thermoplastic resins such as synthetic rubber, thermosetting resins and photocurable resins , Metal, timber, thermoplastic resin, metal or timber coated with thermosetting resin or photo-curable resin, etc., and thermoplastic resin excellent in corrosion resistance and moldability is preferable, such as extrusion molding, injection molding, etc. It is preferable to be molded by a molding method.

  The front and rear thin plates, ribs and ribs molded with thermoplastic resin may be transparent, translucent, or opaque. Molding of thermoplastic resin to improve weather resistance, light resistance, heat resistance, moldability, etc. In this case, a heat stabilizer, a stabilizing aid, a lubricant, a processing aid, an antioxidant, a light stabilizer, a pigment, an inorganic filler, a plasticizer and the like that are generally used may be added.

  The thicknesses of the front and back thin plates are not particularly limited, but are preferably 1 to 5 mm because the mechanical strength decreases when the thickness is reduced, the plate is easily destroyed when a load is applied, and the plate becomes heavier when the thickness is increased.

When the thickness of the side wall is reduced, the mechanical strength, heat insulating properties and the like are reduced, and when the thickness is increased, the load resistance is reduced. Therefore, the thickness is preferably 3 to 30 mm, more preferably 9 to 20 mm. Further, its weight is generally preferably ^{0.6kg / m 2 ~6.0kg / m 2} , more preferably from ^{1.8kg / m 2 ~5.5kg / m 2} .

  The material constituting the bottom wall preferably has mechanical strength. For example, polyolefin resin such as polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluorine resin. , Polycarbonate resins, polyester resins, polyarylate resins, epoxy resins, silicon resins, polyimide resins, thermoplastic resins such as synthetic rubber, thermosetting resins and photocurable resins, metals, timber, thermoplastics Examples thereof include a metal or timber coated with a resin, a thermosetting resin, or a photocurable resin, and a thermoplastic resin excellent in corrosion resistance and moldability is preferable, and is molded by a molding method such as extrusion molding or injection molding. Is preferred.

  The bottom wall may be a plate-shaped body of the above-mentioned material, but since it is preferably lightweight and excellent in mechanical strength and heat insulation, a large number of plate-like plates in which the front and rear thin plates are installed substantially in parallel It is preferably a hollow plate shape laminated with ribs to form an air passage, and the same side wall as that described above is preferably used.

  The shape of the bottom wall is not particularly limited, and examples thereof include a triangle, a quadrangle, a pentagon, a hexagon, a polygon, a circle, and the like.

  In order to give reinforcement, weather resistance, light resistance, heat resistance, etc. to the front thin plate, back thin plate, plate-like rib and bottom wall of the above-mentioned side walls, polyolefin resin, polyvinyl chloride resin, polystyrene resin, A synthetic resin film such as acrylic resin, ABS resin, polyfluorine resin, polycarbonate resin, polyester resin, polyarylate resin, polyimide resin, or aluminum foil may be laminated. In addition, for the purpose of imparting design properties, a picture pattern, a photograph, or the like may be printed on a synthetic resin film or an aluminum foil.

  In the container of the present invention, the hollow plate-like side wall is erected around the bottom wall so that the plate-like ribs on the side wall are substantially horizontal to the bottom wall. Any known method may be employed as the method of standing.

  For example, there are a method of bonding with an adhesive and a method of locking with a bolt / nut locking tool, but in order to reinforce the container and fix it more firmly, a rigid air passage near the lower end of the side wall is used. It is preferable that the joining member is inserted and locked by a locking tool through the joining member.

  That is, in the container according to claim 3, a rigid joining member is inserted into the air passage near the lower end portion of the side wall, and the side wall and the bottom wall are separated by being locked by a locking tool through the joining member. The container according to claim 1 or 2, wherein the container is fixed.

  As the above-mentioned locking device, any conventionally known locking device can be used, and examples thereof include rivets, heat welding, screws, etc., but there are spring mounting bolts, bolts and nuts that can easily assemble or disassemble the container. preferable.

  Examples of the joining member include a rigid circular tube, a rectangular tube, a square bar, a circular bar, a plate, an angle, a channel, a hat, and the like. A through hole formed, a female screw concave shape, or a female A screw through hole shape is formed, and examples of the material include metals, synthetic resins, and timbers, but metals and synthetic resins having high strength are preferable.

  In addition, when the bottom wall is a hollow plate shape in which a thin plate and a back thin plate are laminated via a number of plate-like ribs arranged substantially in parallel to form an air passage, the side wall and the bottom wall It is preferable that a rigid joining member is also inserted into the ventilation path of the bottom wall and is locked by a locking tool through the joining member so that the container is more firmly fixed and the strength of the container is improved.

  That is, in the container according to claim 4, a rigid joining member is inserted into the air passage near the end portion of the bottom wall, and the side wall and the bottom wall are secured by engaging with the engaging member through the joining member. The container according to claim 2 or 3, wherein is fixed.

The locking tool and the joining member are as described above.
In addition, it is preferable to insert a joining member into both the side wall and the bottom wall and lock it with a locking tool because the strength of the container increases.

  Furthermore, in order to make locking easy, you may open the surface thin plate or back thin plate near the lower end part of a side wall, and you may lock with a locking tool.

  That is, the container according to claim 5 has an opening formed in the front thin plate or the back thin plate near the lower end portion of the side wall so that one or more plate-like ribs are exposed, and the exposed plate-like ribs and The container according to any one of claims 1 to 4, wherein the side wall and the bottom wall are fixed by locking the bottom wall with a locking tool.

  The side wall and the bottom wall can be easily fixed by drilling through holes in the exposed plate-like ribs, the plate-like ribs below and the bottom wall, and inserting bolts into the through holes and fixing them with nuts. . Alternatively, the joining member may be inserted into the ventilation path of the side wall and the bottom wall and locked by a locking tool.

  Also, any conventionally known fixing method may be adopted for fixing the side walls, for example, a method of bonding with an adhesive, a method of locking with a locking tool such as a bolt / nut, a spring mounting bolt, or a patchon. However, in order to more firmly fix the side walls, it is preferable to insert a rigid joining member into each ventilation path of adjacent side walls and lock the side walls with a locking tool.

  That is, the container according to claim 6 is characterized in that the adjacent side walls are fixed by locking the rigid joining members inserted in the respective air passages of the adjacent side walls with the locking tool. The container according to any one of claims 1 to 5.

  The joining member and the locking tool are as described above, and it is preferable that the joining member is inserted into at least the air passage near the upper portion of the side wall. Further, a joining member may be inserted and fixed in a ventilation path at a different appropriate position depending on the required strength of the container.

  In order to assemble the side wall and the bottom wall more easily, the front thin plate or the back thin plate is punched to form a punched portion, and a locking tool is inserted into the through hole formed in the plate-like rib from the punched portion. May be fixed.

  That is, in the container according to claim 7, the front or back thin plate near the lower end portion of the side wall is hollowed out to form a hollowed portion, and the plate-like rib exposed from the hollowed portion is deleted, By locking the plate-shaped rib and the bottom wall below by the through-hole drilled in the plate-shaped rib below the part and the locking tool inserted in the through-hole drilled in the bottom wall, The side wall and the bottom wall are fixed, The container according to any one of claims 1 to 4 or 6.

  The joining member and the locking tool are as described above, and the plate-like rib exposed from the punched-out portion is deleted so as not to obstruct the insertion of the locking tool. Alternatively, the joining member may be inserted into the ventilation path of the side wall and the bottom wall and locked by a locking tool.

  Further, in order to assemble the side walls more easily, the front thin plate or the back thin plate is punched out to form a punched portion, and a locking tool is inserted into the through hole formed in the side wall adjacent to the air passage from the punched portion. May be inserted and fixed.

  That is, in the container according to claim 8, the front thin plate or the back thin plate near the end portion of the side wall is hollowed out to form the hollowed portion, and the plate-like rib exposed from the hollowed-out portion is deleted, and the plate-like rib is removed. A fixing member is installed at the end, and the fixing member is inserted into the through-hole formed in the fixing member, the air passage, and a locking tool inserted into the through-hole formed in the adjacent side wall. The container according to any one of claims 1 to 7, wherein the adjacent side walls are fixed by locking adjacent side walls.

  The fixing member is a jig for fixing the locking tool, and is preferably a plate such as a rigid metal, a synthetic resin, or a composite thereof, and the shape thereof can be easily fixed to the plate rib. It is preferably bent in a U shape. The fixing member is provided with a through hole for inserting a locking tool. The punched-out portion may be formed by punching out both the front thin plate and the back thin plate, and closing the opening of one thin plate with another member such as a rubber molded product.

  Moreover, the edge part of the ventilation path of a side wall and a bottom wall may be closed. As a method of closing the end of the air passage, any conventionally known method may be adopted, for example, a method of fitting a plug that can be fitted into the air passage, or a protrusion that can be fitted into the air passage. The method of fitting the projection part of the plate-shaped body which is put into a ventilation path, the method of fixing a plate-shaped body with adhesion | attachment or a locking tool, etc. are mentioned.

  The container of the present invention may be covered with a lid so that the contents spill during transportation or dust does not enter during storage. As the lid, the same one as the above-mentioned bottom wall can be used, and the above-mentioned hollow plate-like body is preferably used when heat insulation, light weight and the like are required.

  Any conventionally known method may be used to cover the container with the lid. For example, a method of simply placing the container on the container, a rivet, a nail, a screw, a bolt / nut, and a spring after placing the container. Examples include a method of fixing with a bolt, patchon, etc., a method of binding with a binding string, a binding band, etc., a method of fixing a hinge or hinge to the end of the lid and the side wall, and the like. Further, when the lid body is a hollow plate-like body, it is preferable that the side wall and bottom wall and the side wall and side wall fixing methods described above are employed because assembly and disassembly are easy.

  The structure of the container of the present invention is as described above, and the side wall is a hollow plate in which a front thin plate and a back thin plate are laminated via a large number of plate-like ribs arranged in parallel to form an air passage. Since it is shaped like a side wall, it is lightweight, has high strength, has excellent heat insulating properties (such as prevention of internal condensation), is easy to assemble and disassemble, and can be suitably used as a returnable box.

  Further, the bottom wall is a hollow plate-like bottom wall in which a ventilating path is formed by laminating a thin plate and a back thin plate through a large number of plate-like ribs installed substantially in parallel. Since it has excellent heat insulation properties, it can be more suitably used as a returnable box.

  Furthermore, when an opening or a hollow portion is formed on the front or back thin plate near the lower end of the side wall so that one or more plate-like ribs are exposed, the side wall and the bottom wall or the side walls It is easy to assemble and disassemble by locking with a locking tool, and can be used more suitably as a returnable box.

  Moreover, when the joining member is inserted into the air passage and the side wall, the bottom wall, and the adjacent side walls are fixed, the strength is high and the box can be used more suitably.

  Next, examples of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following examples.

  FIG. 1 is a perspective view showing an example of the side wall. In the figure, 1 is a front thin plate, and 2 is a back thin plate. 3, 3,... Are plate-like ribs that are parallel to each other and are arranged at regular intervals between the front thin plate 1 and the back thin plate 2 to form air passages 4, 4,.

  2 is a perspective view showing an example of the container of the present invention, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. 4 is a cross-sectional view taken along line BB in FIG.

  In the figure, reference numeral 5 denotes a hollow plate-like flat rectangular bottom wall shown in FIG. 1 having a length of 45 cm, a width of 50 cm, and a thickness of 15 mm, and the hollow plate-like side wall 6a shown in FIG. , 6b, 6c and 6d are erected to form a box-shaped container.

  The side walls 6a and 6c are hollow plate-shaped side walls having a length of 30 cm, a width of 47 cm, and a thickness of 15 mm, and the side walls 6b and 6d are hollow plate-shaped side walls having a length of 30 cm, a width of 45 cm, and a thickness of 15 mm. Openings 7, 7, and 7 are formed on the surface thin plate 1 near the lower ends of the side walls 6a and 6c so that the plate-like ribs 3 are exposed.

  On each side wall and bottom wall, plate-like ribs 3 having a thickness of 1.5 mm are provided at intervals of 10 mm, and a ventilation path 4 is formed in the lateral direction. The side walls 6a, 6b, 6c and 6d are installed such that the respective plate-like ribs 3 are horizontal, that is, the ventilation path 4 is horizontal.

  Inserted into the air passage 4 at both ends of the bottom wall 5 is a joining member 8a, which is a square bar made of aluminum having through holes 9a formed at regular intervals and having a length of 8 mm, a width of 8 mm, and a length of 50 cm. The vent passage 4 at the lower end of the side wall 6a and the side wall 6c has female screw holes 10 at both ends and through holes 9b at regular intervals. A joining member 8b, which is a 47 cm long aluminum square bar, is inserted.

  As shown in FIG. 3, the joining member 8 a and the joining member 8 b are fixed to the bottom wall 5, the side wall 6 a, and the side wall 6 c by inserting bolts 11 through the through holes 9 a and 9 b and fixing them with nuts 12. . Further, by fitting the screw 13 from the side wall 6b to the female screw hole 10, the side wall 6b is screwed and fixed to the side wall 6a.

  The joining member, which is an aluminum square bar having a length of 8 mm, a width of 8 mm, and a length of 47 cm, has female screw holes 10 c formed in both end portions in the upper and middle vent passages 4 of the side walls 6 a and 6 c. 8c is inserted, and through holes 9c are formed in the vicinity of both end portions in the upper and middle vents 4 of the side walls 6b and 6d, which are made of aluminum having a length of 8 mm, a width of 8 mm, and a length of 45 cm. A joining member 8d which is a square bar is inserted.

  As shown in FIG. 4, the joining member 8d and the joining member 8c are screwed to the side wall 6b and the side wall 6a by fitting the screw 13 through the through hole 9c of the joining member 8d and into the female screw hole 10c. Is fixed. Reference numeral 14 denotes a washer.

  FIG. 5 is a side view of an essential part showing a different fixing method of the bottom wall and the side wall. In the figure, 5 is a bottom wall and 6a is a side wall. An opening 7 is formed in the side wall 6a so that the plate-like rib 3 is exposed. Bolts 11 are inserted into the bottom wall 5 and through holes formed in the plate-like rib 3 at a position substantially in front of the opening 7, and the bolt 11 and the nut 12 are fixed, whereby the bottom wall 5 and the side wall 6 a are It is fixed.

  FIG. 6 is a side view of an essential part showing a different fixing method of the bottom wall and the side wall. In the figure, 5 is a bottom wall and 6a is a side wall. On the surface thin plate 1 of the side wall 6a, a substantially rectangular hollow portion 15 is formed so that the lower end is in contact with the second plate-like rib 3 from the bottom and the third and fourth plate-like ribs 3 are exposed from the bottom. In addition, the exposed plate-like rib 3 is deleted. A through-hole 16 is formed in the first and second plate-like ribs 3 below the front thin plate 1, the back thin plate 2 and the side wall 6a of the bottom wall 5, and the bolt 11 is inserted into the through-hole 16 from above. Then, the bottom wall 5 and the side wall 6a are fixed by fixing the bolt 11 and the nut 12 in contact with the back thin plate 2 of the bottom wall 5.

  FIG. 7 is a side view of the main part showing a bottom wall, a side wall, and different fixing methods for the side walls. In the figure, 5 is a bottom wall, and 6a and 6b are side walls. The thin plate 1 of the side wall 6a has a substantially rectangular hollow portion so that the lower end is in contact with the second plate-like rib 3 from the bottom and the third, fourth and fifth plate-like ribs 3 are exposed from the bottom. 15 is formed, and the exposed plate-like rib 3 is omitted.

  A through hole 16 is formed in the first and second plate-like ribs 3 from the bottom of the front thin plate 1 and the side wall 6a of the bottom wall 5, and a bolt 11 is inserted into the through hole 16 from above. The bottom wall 5 and the side wall 6a are fixed by fixing the nut 12 that is in contact with the surface thin plate 1 of the bottom wall 5. A through hole 16a for inserting the nut 12 is also formed in the back thin plate 2 of the bottom wall 5.

  In addition, a U-shaped fixing member 17 is installed so as to straddle the ends of the third plate-like rib 3 and the fourth plate-like rib 3 from the deleted bottom. A through-hole 18 is formed in the surface plate 1 of the side wall 6b, and the bolt 11 is inserted from the through-hole 18a formed in the approximate center of the fixing member 17 into the through-hole 18 of the surface plate 1 of the side wall 6b. The side wall 6a and the side wall 6b are fixed by fixing the bolt 12 and the nut 12 that is in contact with the surface thin plate 1 of the side wall 6b. A through hole 18b for inserting the nut 12 is also formed in the back thin plate 2 of the side wall 6b.

It is a perspective view which shows an example of a side wall. It is a perspective view which shows an example of the container of this invention. It is AA sectional drawing in FIG. It is BB sectional drawing in FIG. It is a principal part side view which shows the fixing method from which a bottom wall and a side wall differ. It is a principal part side view which shows the fixing method from which a bottom wall and a side wall differ. It is a principal part side view which shows the fixing method from which a bottom wall, a side wall, and side walls differ.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front thin plate 2 Back thin plate 3 Plate-like rib 4 Ventilation path 5 Bottom wall 6 Side wall 7 Opening part 8 Joining member 9 Through hole 10 Female screw hole 11 Bolt 12 Nut 13 Screw 14 Washer 15 Bored part 16 Through hole 17 Fixing member 18 Through hole

Claims (7)

A hollow plate-like side wall in which a ventilating path is formed surrounded by a front and back thin plate, a back thin plate, and a rib formed by laminating a front thin plate and a back thin plate through a number of plate-like ribs installed in parallel, A rigid joint member is inserted in the air passage near the lower end of the side wall so that the plate-like rib is horizontal with respect to the bottom wall. A side wall and a bottom wall are fixed by being locked by a locking tool. A hollow plate with a bottom wall surrounded by front and back thin plates and ribs in which the front and back thin plates are laminated via a large number of plate-like ribs installed in parallel. The container according to claim 1, wherein A rigid joining member is inserted into the air passage near the end of the bottom wall, and the side wall and the bottom wall are fixed by being locked by a locking tool through the joining member. The container according to claim 1 or 2 . An opening is formed in the front or back thin plate near the lower end of the side wall so that one or more plate-like ribs are exposed, and the exposed plate-like ribs and the bottom wall are locked by a locking tool. The container according to any one of claims 1 to 3 , wherein the side wall and the bottom wall are fixed. Adjacent side walls, by engagement with the joining member rigid are inserted into the respective air passage locking device, it claims 1-4 which side walls adjacent, characterized in that it is fixed Item 1. The container according to item 1. The front or back thin plate near the lower end of the side wall is punched out to form a punched-out portion, and the plate-like rib exposed from the punched-out portion is deleted, and the plate-like rib below the punched-out portion is drilled. The side wall and the bottom wall are fixed by locking the lower plate-like rib and the bottom wall with the through hole and the locking tool inserted into the through hole formed in the bottom wall. The container according to any one of claims 1 to 4 or 5 , wherein: The front thin plate or the back thin plate near the end of the side wall is punched out to form a punched-out portion, and the plate-like rib exposed from the punched-out portion is deleted, and a fixing member is installed at the end of the plate-like rib By locking the side wall adjacent to the fixing member with the through hole formed in the fixing member, the air passage, and the locking tool inserted into the through hole formed in the adjacent side wall, Adjacent side walls are fixed to each other, and the container according to any one of claims 1 to 6 .

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