MX2008000802A - Metal reinforcement fitting - Google Patents

Abstract

A metal reinforcement fitting durable for a long period in which a conveyance container is used. The metal reinforcement fitting (10) has a band plate (12) bent vertically upward. Fitting the metal reinforcement fitting (10) to the container (20) applies upward force to a bottom face (20b) of the container (20). The upward force acting on the metal reinforcement fitting (10) holds downward force by the weight of a heavy object received in the container (20). Accordingly, when the reinforcement fitting (10) is installed on the container before the heavy object is received in the container, the reinforcement fitting (10) prevents a protrusion of the bottom face (20b) of the container (20). Also, when the reinforcement fitting is installed on the container having protruded bottom face (20b), instability of the container caused by deformation of the bottom face (20b) can be improved by installing the reinforcement fitting (10).

Description

METAL REINFORCEMENT ACCESSORY Technical Field The present invention relates to a reinforcement accessory, more particularly, refers to a reinforcement accessory for transport containers.

Previous Technique Most of the indispensable transportation containers for distribution of parts have been formed in a common manner from resin. As described in Japanese Published Unexamined Patent Application No. 2000-226021, a plurality of ribs provided in the lower part of said transport container allows the container to obtain a high rigidity in the lower part. Additionally, these reinforcing ribs are made thick or transverse one above the other, and therefore the strength of the lower part is increased.

Patent Document 1: Japanese Unexamined Patent Application Publication No. 2000-226021.

Description of the Invention Problems to be Resolved by the Invention However, the lower part of the transport container made of resin thickened by heat in the case where an article to be housed in particular has heating or a large weight, and the lower part remains in that state even after it is removed. the article that is going to be hosted. The transport container thus formed is unstable and is the cause of the container failing during transportation. Additionally, the transportation container formed in this manner can not be reused, and is disposed of and disposed of as an industrial waste. This situation goes against the tendency to give great importance to environmental problems. The present invention was made in view of the problems and attempts to provide a reinforcing fitting that allows a transportation container to have durability for long-term use.

Means to solve problems In order to achieve the above object, the invention according to claim 1 provides a reinforcing fitting, which is attached to the lower part of a transport container formed of resin, which includes: a pair of opposite engagement parts between yes, the hooking portions extending upward in a strip form along the sides of the transport container from the bottom, and each having ends for engaging on a flange formed on the lateral peripheral edge on the part bottom, the end having a hook-shaped cross section; and a strip that is located laterally in the lower part, formed integrally with the pair of engaging parts, and connects the engaging parts together. If the invention according to claim 1 as constituted in advance, the strip equipped with the hooking parts at the lower ends is attached to the lower part of the transport container so that the lower part is reinforced. Here, the transport container is, generally, a container in the shape of an approximate box open upwards. The sides of the opening part of the transport container have the flange. Additionally, the flange is provided so that the lower portion of the upper transportation container engages with the lower transport container opening in the stack of the same class of transportation containers, the flange projecting outwardly from the four sides at the bottom for a predetermined length, and surrounding the peripheral edge.

Here, the hook-shaped portions of the hook parts engage on the flange formed on the peripheral peripheral edge at the bottom of the container. The engaging parts are a pair of engaging parts placed on the two sides of the transport container respectively, the sides being opposite each other. The strip is placed laterally on the bottom of the transport container to connect the pair of latching parts to each other, and attached to the bottom. The transport container is formed of resin, and the lower part thereof is softened by means of thermo-plasticity of the resin when an article to be housed that has heating is received. On the other hand, the reinforcement fitting, which includes the hooking parts and the strip, is made of metal, and therefore can support the bottom without being softened at the softening temperature of the resin. Additionally, hereinafter, the length of the strip of the reinforcement fitting which equals approximately that of the transport container in a longitudinal direction or short side direction, and a joining direction of the reinforcing attachment is a direction in which the lengths are equal to each other.

The invention according to claim 2 provides a reinforcing fitting, which is attached to the lower part of the transport container formed of resin, which includes: a pair of opposite engagement parts with each other, the engagement parts having ends for engaging in a flange formed on the outer periphery of the opening in the upper part of the transport container, the end having a hook-shaped cross-section; and a strip that is located laterally along the sides and the bottom of the transportation container, formed integrally with the pair of latching parts, and connects the latching parts with each other in an approximate U-shape. In the invention according to claim 2 as constituted above, the U-shaped strip equipped with the hooking parts at both ends is attached to the lower part of the transport container so that the lower part is reinforced. Here, the reinforcement fitting is attached to the above-described general transportation container that has no flange around the sides at the bottom. The hook-shaped portions of the engaging part engage the flange projecting outwardly from the opening in the upper part for a predetermined length and encircling the peripheral edge of the opening. The engaging parts engaged in the flange provided on the peripheral edge of the opening are connected to each other and fixed by means of the strip in the approximate U-shape along the bottom and both sides of the transport container. Therefore, the lower part of the strip is supported by the engaging portions at both ends through the side portions of the strip.

Additionally, the invention according to claim 3 provides a reinforcing fitting, which is attached to the lower part of the transport container formed of resin, which includes: a pair of opposite engagement parts with each other, each of the coupling parts having threaded holes to be connected to the side of the transport container with screws; and a strip that is positioned laterally along the sides and bottom of the transportation container, formed integrally with the pair of latching parts, and connects the latching parts to each other in an approximate U-shape . In the invention according to claim 3 as constituted above, the strip equipped with the hooking parts at both ends is attached to the lower part of the transport container, the hooking parts having threaded holes, so that it is reinforced the bottom. Here, for the lower part to be supported by the strip located laterally thereon, the pair of engaging parts can be placed opposite each other on the opposite sides of the transport container to fix both sides of the strip to the same. sides of the container. Accordingly, the hitch parts can be placed on the upper open side or on the lower side of the sides of the transportation container. However, there is a possibility that non-uniformity of reinforcement in the lower part is caused unless the strip is fixed uniformly to the lower part, and therefore it is preferable that the pair of latching parts are placed on the sides at the same height in a respective manner in order to hook up and hold both ends of the strip with a uniform force. Accordingly, in the invention according to claim 4, the strip according to any of claims 1 to 3 is formed to be curved vertically upwards in the center in a longitudinal direction. In the invention according to claim 4 as constituted above, the strip butts against the lower part of the transport container with the strip bent vertically upwards. Here, both ends of the strip are fixed by the coupling parts provided at both ends with use of a predetermined method. At this time, the deflecting force is applied vertically upwards in the direction towards the center of the lower part in the direction and length of the strip joined by the curve of the strip fixed to the lower part of the transport container. Therefore, even if an article having a large weight or heating is housed in the transport container and downward force is applied to the lower part, the downward force is offset by the upward force and the lower part hardly buckles. Additionally, in the invention according to claim 5, each of the hooking parts according to any of claims 1 to 4 has ribs formed to be pulled from a side projected to a recessed side to cross over a fold of a flexed part, the rib having a cross section in the shape of a ridge. In the invention according to claim 5 as constituted above, the rib, which is pulled from the projected side towards the recessed side to traverse the fold of the flexed part, is formed in each flex part of the engaging part for reinforce the flexed part, the rib that has the cross section in the shape of a crest. The rib adds thickness to the flexed part, and serves as a restriction to prevent each of the surfaces constituting the flexed part from coming into contact with each other in the case where force is applied to the surfaces in a direction of flexion . Additionally, in the invention according to claim 6, the strip according to any of claims 1 to 5 is flexed or bent in the length direction to be formed as a non-planar plate. In the invention according to claim 6 as constituted above, the strip is formed as a non-planar plate having a part flexed in a predetermined manner in the length direction. Here, the part flexed in the predetermined manner in the length direction is formed in the strip, and therefore the cross section of the flexion part of the strip in a direction and width becomes non-uniform. As a result, the flexural rigidity of the strip is increased by the lack of uniformity in the cross section. That is, the strip is strongly deformed against the external force as it forms on the non-planar plate. Here, the cross section can be made non-uniform so that the strip becomes the non-planar plate. As an example of non-planar plates lacking uniformity, in the invention according to claim 7, the ends of the strip according to claim 6 in the width direction are flexed and the strip is formed as an approximate U. In the invention according to claim 7 as constituted above, both ends of the strip in the width direction are flexed so that the strip is formed as a non-planar plate. Similarly, as an example of a non-planar plate, in the invention according to claim 8, the strip according to claim 6 has the flange extended in the length direction. In the invention according to claim 8 as constituted above, the strip includes the extended flange-shaped part having a predetermined width in the length direction. The rim is obtained in a manner that a recess in the form of a half arch having a predetermined width is formed on both sides of the direction about the center of the strip in the length direction, and thus the strip becomes a plate not flat Here, the strip includes the lack of uniformity in it so that the force is uniformly dispersed, and therefore becomes a non-flat plate. In consecuense, the width of the flange is arbitrarily relative to the center in the width direction. Additionally, two flanges having the same length can be juxtaposed so as to be symmetrical with respect to the center of the strip in the width direction. Here, in the invention according to claim 9, the strip according to any of claims 1 to 8 is heat-treated and formed to have elasticity so that the vertical rising deflection force is applied towards the lower part when the strip is attached to the transportation container. In the invention according to claim 9 as constituted above, the hardness of the strip is freely adjusted by means of heat treatment so that the strip has elasticity. In addition, a reinforcement fitting that includes the strip can be made from a special steel where the strength and hardness are increased by the addition of a predetermined alloy for the iron. In this case, the strip is formed of special steel and subjected to heat treatment, the hardness is adjusted freely, and therefore high elasticity is applied to the strip. Additionally, in the direction according to claim 10, the plurality of reinforcement accessories according to each of claims 1 to 9 can be joined, parallel to each other at a predetermined spacing, towards the lower part of the container. transportation. In the invention according to claim 10 as constituted above, the plurality of strips is attached to the lower part of the transport container to be parallel to each other. Here, the strips can arbitrarily reinforce a desired position or width range of the bottom part and reinforcement fittings having the same joint direction can be attached to the desired position. The reinforcement fittings can be attached to the plurality of desired positions of the lower part respectively, or they can be joined to press a warped position in a wide range of the lower part.

Effects of the Invention As described above, according to the inventions of claims 1 to 3, the lower part of a transport container can be removed and reinforced. According to the invention of claim 4, the lower part of the transport container is removed by elasticity of a strip, and the periphery of the strip can be prevented from buckling. Additionally, the shape of the deformed bottom can be improved by attaching a reinforcing fitting of the invention to the bottom.

According to the invention of claim 5, a hooking part of a reinforcing fitting can be prevented from being folded in each bending part. According to the inventions of claims 6 to 8, the rigidity of the strip can be increased. According to the invention according to claim 9, the upward force can be applied to the lower part of the transport container which butts against the strips. According to the invention according to claim 10, buckling of the lower part of the transportation container can be prevented or improved.

Brief Description of the Drawings Figure 1 is a perspective bottom side view of a reinforcement fitting and transport container; Figure 2 is a schematic top plan view of the reinforcement fitting; Figure 3 is a schematic side view of the reinforcing fitting; Figure 4 is a schematic top plan view of the reinforcement fitting according to the modification; Figure 5 is a schematic side view of the reinforcing fitting according to the modification; Fig. 6 is a schematic cross-sectional view showing a flexure direction of the lower side of the transportation container; Figure 7 is a schematic cross-sectional view showing a state where the reinforcing fitting is attached to the transportation container; Figure 8 is a schematic perspective bottom side view of the transport container to which the plurality of reinforcement accessories is attached; Figure 9 is a schematic perspective top side view of the transport container to which the reinforcement fitting is attached in accordance with a modification; and Figure 10 is a schematic perspective top side view of the transport container to which the reinforcement fitting is attached in accordance with a modification; Description of the Symbols , 10a, 10b, 10c reinforcing fitting 11 hooking part 11a hook-shaped portion 11b hooking base 12 strip 12a both ends in the width direction 13a first flex part 13b second flex part 14a, 14b reinforced part 20 transportation 20a opening 20b lower part 20b1, 20b2 lower part 20c side 21 upper side flange 22 lower side flange Best Way to Carry Out the Invention Hereinafter, the ways to carry out the invention according to the following order will be described: (1) Modality; (2) Modification; and (3) Conclusion (1) Modality Figure 1 is a perspective bottom side view of a reinforcement fitting 10 and the transportation container 20. As shown in Figure 1, the transportation container 20 formed of resin is an approximate box shape in which the side upper is open, and the reinforcing fitting 10 according to the present invention is attached from the lower part to the lower part of the transportation container 20. An upper side flange 21 is provided on the sides of the upper part of the transportation container 20, the flange 21 projecting outward continuously from an opening 20a, and from the sides by means of a predetermined length, and surrounding the peripheral edge of the opening 20a. additionally, the sides of the lower part of the transport container 20 have a lower side flange 22, the flange 22 projecting outwardly the same length as that of the upper side flange 21, and encircling the peripheral edge. Therefore, in the stacking of the same kind of transport containers 20, the sides and the lower part 20b lower than the lower lateral flange 22 of the transportation container 20 are inserted into the opening 20a of the upper part of the container 20. lower transportation 20, the sides and the lower part which are lower than the lower lateral flange 22. Then, the transportation containers 20 are stacked in a manner that the upper surface of the upper side flange 21 continues with the opening 20a butts with the upper surface of the lower side flange 22. The reinforcing fitting 10 is formed of special steel which has a strong elasticity by heat treatment and, as shown in Figure 2 and Figure 3, includes a pair of latching parts 11 and a strip 12 for connecting the latching parts 11 to each other in the same width. The strip 12 has a predetermined width, and the length of the strip 12 is approximately equal to that of the transportation container 20 in a short-sided direction. The left and right ends of the strip 12 in a length direction are bent to extend approximately vertical up, first bent portions 13a are formed and hook bases 11b of the hook parts 11 are formed. Also, second parts are formed flexed 13b both at the left and right end directed upwards of the hook bases 11b, the second flex part 13b which is approximately orthogonal to an external direction of the strip 12 in the length direction. The hook base 11b is connected, through the second flexed part 13b, to a hook-shaped portion 11a an end of which is directed to the inner side of the strip 12 and having a semicircular cross-section. As described above, the reinforcing fitting 10 has one that the strip 12 connects the engaging portions 11 to each other at both ends through the first flexed portions 13a, the engaging portions 11 which are placed at the left and right ends. of the strip 12 respectively with the engaging sides of the hook-shaped portions 11a opposite each other. In the engaging part 11, the reinforcing parts 14a and 14b are formed in positions that are symmetrical with respect to each other in the width direction, of the first flex part 13a and the second flex part 13b, respectively. Each of the reinforcing portions 14a and 14b have a rib that is pulled from the projected side towards the recessed side in order to traverse the fold of the flexed part, and the rib has a cross-section in the shape of a ridge. The reinforcing parts 14a and 14b are rib-shaped, and serve as a restriction to prevent each of the surfaces constituting the bent part from coming into contact with one another by adding thickness to a part of the first part. flexion 13a and a portion of the second flex part 13b and filling the flexion angles in the event that a force is applied to the surfaces in a flexion direction. Accordingly, the reinforcing parts 14a and 14b prevent each bent part from being folded in case the force is applied to the first flex part 13a and the second flex part 13b. As described above, the strip 12 connects the pair of latching parts 11 together through the flexed parts and curves vertically upwards in the center of the length direction. In the embodiment, the height of the center is the same as that of the second flexed part 13b between the hook-shaped portion 11a and the hooking base 11b. Additionally, strip 12 is formed approximately as a U in a manner in which both ends 12a in the direction are flexed downwardly at right angles by one sixth of the total width, respectively.

Therefore the non-uniformity in the cross section of the strip 12 is formed in the width direction, the strip is made as a non-flat plate, and therefore the flexural stiffness of the strip 12 is increased, and the strip It is reinforced to be strongly deformed even if external force is applied to it. Additionally, as a modification of the non-uniformity of the cross-section of the strip 12, a reinforcing fitting 110 is shown in Figure 4 and Figure 5. As shown in Figure 4 and Figure 5 a recess in the form of a half-arc, a part extending in the shape of a flange 112a, can be formed in a strip 112 in the length direction, the recess being symmetrical with respect to the center of the strip 112 and having a width of one third of the total width in the direction on both sides. Next, a method of attaching the reinforcing fitting 10 to the transportation container 20 will be described. Figure 6 shows a schematic cross-sectional view of the lower part of the transportation container 20 in the short side direction. A lower part 20b of the transport container 20 is first urged towards the opening 20a as indicated by the arrow C in figure 6. Then, the lower part 20b is bent towards the inner side (arrow B in figure 6) of the transport container 20 in the short side direction, is made in the form of an arc as a lower part 20b1 indicated by a dotted line in figure 6, and that the width of the lower part 20b1 becomes narrower than that of the lower part 20b before it is pushed. Here, the length of the strip 12 of the reinforcing fitting 10 to be fixed to the lower part 20b equals approximately that of the transport container 20 in the short-sided direction, and the width of the lower part in the form of an arc. 20b1 becomes narrower than the length of the strip. Accordingly, the engaging portions 11 of the reinforcing fitting 10 are directed towards the lower part 20b1, and one of the engaging parts 11 is engaged on one side of the lower side flange 22. Here, since the width of the part lower 20b1 is narrower than the length of the strip, the reinforcing fitting 10 can be located through the arc-shaped lower part 20b1 with one of the latching parts engaged. When the pressing force towards the lower part 20b1 is stopped with the reinforcing fitting 10 thus located through the lower part 20b1, the arc-shaped lower part 20b1 returns to its original flat state, and simultaneously the side , in which the engaging part is not engaged, the side flange of the lower part 22 is inserted into another hook part 11 that does not engage in the lower flange. As described above, the reinforcing fitting 10 is attached to the lower part 20b as shown in Figure 7. Figure 7 is a schematic cross-sectional view of the reinforcing fitting 10 attached to the lower part 20b of the transportation container 20. In figure 7, a lower part 20b2 in the case where a heavy article or the like is housed in the transport container 20 is shown by means of a dotted line. The transportation container 20 has thermoplasticity because it is made of resin, and is softened by weight or heating of an article to be housed and is easily deformed. In particular, the downward force is applied to the lower part 20b, which often supports the weight of the heavy article with a surface, by means of weight or heating of the article to be housed as indicated by an arrow A in figure 7, and the lower part 20b curves like the lower part 20b2. However, the reinforcing fitting 10 to be joined to the lower part 20b is made of a special steel, and therefore can support the lower part 20b without being smoothed at the softening temperature of the resin. Additionally, the weight of the article to be housed is rarely applied to one side 20c of the transport container 20, and the lower side tab 22 formed on the sides 20c is hardly affected by the weight or heating of the article being will host Additionally, the engaging portions 11, which are engaged on the lower side flange 22, are not made unstable by the weight or heating of the article to be housed, and the strip of the reinforcing fitting 10 can support the background. Further, since the strip 12 is curved vertically upwards and butts against the bottom part 20b, the bottom part 20b is pushed upwards as indicated by the arrow C in figure 7. As a consequence, the downward force towards the lower part 20b can be suppressed by means of joining the reinforcing fitting 10. As described above, the upward force can be applied to the lower part 20b of the transport container 20 by means of the attachment of the reinforcing fitting 10. Upward force of the reinforcing fitting 10 can suppress the downward force of the heavy article housed in the transportation container 20. Accordingly, if the reinforcing fitting is attached to the lower part 20b of the transportation container 20 before the article is accommodated , the lower part 20b is prevented from warping. Additionally, even if the lower part 20b of the transport container 20 has already warped, the instability caused by the deformation of the lower part 20b can be improved by means of the attachment of the reinforcement fitting 10. Here, as shown in figure 8, the plurality of reinforcement accessories 10 described in the above embodiment can be attached to the lower part 20b of the transport container 20. In figure 8, each length of the reinforcement accessories 10a, 10b and 10c guala approximately that of the transportation container 20 in the short side direction. The reinforcing fitting 10a is attached to the center of the lower part 20b in a longitudinal direction so as to be orthogonal to the longitudinal direction, and the reinforcing accessories 10b and 10c are parallel with the reinforcing fitting 10a, the accessory 10a which is placed between the fittings 10b and 10c, and they are attached to the end sides of the bottom part 20b in the longitudinal direction, respectively.

The lower part 20b can be supported by the plurality of reinforcement accessories thus placed. The case is described here where the three reinforcement accessories 10 are attached. However, the number of reinforcement accessories can be selected arbitrarily according to the shape of the article to be housed in the transportation container 20. For example, in the case where the weight of the article to be housed it is applied only to a specific portion of the lower part 20b, if the reinforcing accessories 10 are joined to the corresponding positions of the lower part 20b respectively, the corresponding positions are prevented from warping and the lower part 20b can be kept well balanced. Additionally, in the case where the transport container 20 is large and the simple reinforcement accessories 10 can not prevent the lower part 20b from warping, the sag is suppressed in the wide range of the lower part 20b when joining in a manner uniform the plurality of reinforcement accessories 10 to the lower part. In addition, the case will be described where the reinforcement fittings 10 cross each other and are attached to the lower part 20b of the transport container 20. A first reinforcement accessory 30 and second reinforcement accessory 40 (not shown) are used, the accessory 30 having a length that is equal to that of the lower part 20b in the short side direction, and the accessory 40 having a length equal to that of the lower part 20b in the longitudinal direction. The first reinforcing fitting 30 is placed first, in the short-sided direction, in the center of the lower part 20b in the longitudinal direction. Then, the engaging portions 31 of the first reinforcing fitting 30 are engaged in the lower lateral flange 22 formed on the sides 20c of the lower part 20b in the longitudinal direction. On the other hand, the second reinforcing fitting 40 is placed in a position, in which the strips 32 and 42 pass through each other, in the lower part 20b to be approximately orthogonal to the first reinforcing fitting 30 in both centers of the accessories in the longitudinal direction. The engaging portions 41 of the second reinforcing attachment 40 are engaged in the lower side flange 22 formed on the sides 22c of the lower part 20b in the short side direction, and therefore the joining of the two reinforcing accessories is completed. and 40 to the bottom 20b. Here, in the first reinforcing fitting 30, both ends 32a, which are flexed downward at right angles, of the strip 32 in the width direction are made approximately in the form of a recess in the part in which the strips 32 and 42 they cross each other, in the width of the strip 42 in the length direction. Then, when the first reinforcing fitting 30 and the second reinforcing attachment 40 cross, both ends 42a, which are similarly flexed downward at right angles, of the strip 42 in the width direction are equivalent with both ends in the form of approximate recess 32a, and the movement of the strip 42 of the second reinforcing attachment 40 in the width direction can be restricted. Additionally, the approximate recess may be provided at either end 32a or ends 42a, or at both ends 32a and 42a, depending on the order of attachment of reinforcement fittings 30 and 40 to bottom portion 20b. As described above, the reinforcing accessories 10 are attached to the lower part 20b in a cross-shaped manner suitable for reinforcing the lower part 20b, and thus the sagging of the lower part 20b can be prevented. Similarly, the case where the reinforcement fittings 10 cross each other and join the lower part 20b of the transportation container 20 will be described. Here, the third reinforcing fitting 50 and the fourth reinforcing fitting 60 are used, the accessories that have the same shape and each one has a length that is equal to that of the diagonal of the lower part 20b. Both ends of the third reinforcing fitting 50 are bifurcated, and two legs of the bifurcation are branched in the one-eighth position of the third reinforcing fitting 50 from the end, and have the same width in the width direction. The two legs of the fork 52b extend to the left at 45 ° and to the right 45 ° in the length direction of the third reinforcing fitting 50 respectively, and a hook part 51 is provided at each upper end, the engaging part 51 having the same shape as that of the engaging part 11 shown in Figure 3. The bifurcations 62b and the engagement portions 61, which are formed at both ends of the fourth reinforcing fitting 40, are similar to the bifurcations 52b. and the engaging parts51, respectively. Here, a method of joining the third reinforcement fitting 50 and fourth reinforcement fitting 60 to the lower part 20b will be described.

First, the third reinforcing fitting 50 is placed on the diagonal of the lower part 20b, then the two legs of each fork 52b on both ends of the third reinforcing fitting 50 are opposite each other at right angles to the corner of the lower part 20b in which the third reinforcing fitting 50 is placed. In addition, the right leg of the bifurcation 52b of the end of the third reinforcing fitting 50 is approximately orthogonal to the side 20c of the lower part 20b in the longitudinal direction, they form an approximate x in the lower part 20b, and can reinforce the lower part 20b. Even with this embodiment, both ends 52a and 62a of the strips 52 and 62 of the third reinforcing attachment 50 and the fourth reinforcing attachment 60 that intersect each other in the width direction can be formed in the approximate recess form described above. . Additionally, the shapes of the engaging parts 51 and 61 can be selected arbitrarily as long as the engaging portions 51 and 61 can be engaged at the corners constituted by the two sides 20c, which are continuous and approximately orthogonal to each other. yes, and the lower part 20b of the transport container 20. Although in the foregoing the case was described where the two reinforcement accessories 10 join to and reinforce the lower part 20b in the approximate transverse shape or the approximate x-shape, the two reinforcement accessories 10 can be a four-pronged bifurcation booster accessory in which the strips 12 of the two reinforcement accessories 10 are integrally connected to each other. (2) Modification Figure 9 is a schematic perspective view of a transport container 220 to which a reinforcing fitting 210 is attached in accordance with a modification.

In Figure 9, the transportation container 220 includes an upper side tab 221, but does not include a lower side tab. Since the engaging portions 211 can not be hooked to the sides of the lower part of the transportation container 220, the engaging portions 211 of the reinforcing attachment 210 are engaged in the upper lateral flange 221 in this modification. Then, a strip 212 of the reinforcing fitting 210 is formed to connect the engaging portions 211 to each other through the sides 220c from a lower portion 220b of the transportation container 220. Here, a hook-shaped portion 211a and a base of hook 211b of the engaging part 211 are formed along the upper side flange 221 and the strip 212 is formed along the sides 220c under the hooking base 211. The strip 212 at the bottom 220b is, similar to the previous embodiment, formed as an approximate U when flexing the ends in the width direction, making it like a non-flat plate, has an increased resistance and is vertically curved upwards. Then, the engaging portions 211 are hooked at both ends, and therefore both ends are raised from the lower part 220b through the strap 212 placed on the sides 220c and the strap 212 is tightly attached to the lower part 220b . Then, similarly to the previous embodiment, the elasticity of the strip 212 and the engaging portions 211 placed at both ends acts on the underside of the transportation container 220. Therefore, the downward force of the heavy article can be suppressed. housed in the transportation container 220 towards the lower part 220b. As described above, even in the case where the transport container 220 does not have a lower side flange, the reinforcing fitting 210 can be joined, and the lower part 220b can be prevented from deforming. Next, examples will be described wherein a reinforcing fitting 310 is, for attachment thereof, engaged on the sides 320c in the lower part of a transportation container 320 that does not have a suitable part for holding a hook. Figure 10 is a schematic perspective view of the transport container 320 to which the reinforcement accessory 310 is attached in accordance with the modification. In figure 10, similar to the previous modification, the transport container 320 has no lower side tab. Here, threaded holes 311c are provided at the end of a latching part 311 of the reinforcing fitting 310. Additionally, the threaded holes (not shown) are provided in the position corresponding to the threaded holes 311c when the reinforcing fitting 310 is attached to the transport container 320. There are screws that engage with the threaded holes, and therefore the container 320 and the accessory 310 are fixed together. A strip 312 in a lower part 320b is, similar to the previous embodiment, formed in an approximate U when flexing the ends in the width direction, made as a non-planar plate, has a high strength and curves up vertically. Then, both ends of the strip 312 are fixed by threaded engagement of the latching parts 311 and the sides 320c of the transport container 320, and therefore both ends are raised from the bottom 320b, and the strip 312 is fixed in a manner narrow to the bottom 320b. Then, similar to the previous embodiment, the elasticity of the strip 312 and the latching parts 311 placed on both ends act on the lower part of the transport container 320. Therefore, the downward force of the heavy article housed in the container can be suppressed. transport container 320 towards the bottom 320b. As described above, even in the case where the transport container 320 does not have a suitable part to hold a hook, providing the threaded holes in the sides 320c causes the reinforcing fitting 310 to be able to be joined, and it can be prevented that lower part 320b is deformed. (3) Conclusion As described above, the reinforcing fitting 10 including the strip 12 curved vertically upwards is attached to the lower part 20b so that the upward force can be applied to the lower part 20b of the transport container 20. The ascending force of the reinforcing fitting 10 can suppress the downward force of a heavy article housed in the transport container 20. Accordingly, if the reinforcing fitting 10 is attached to the lower part 20b of the transportation container before the heavy article is housed , the lower part 20b is prevented from warping. Additionally, even if the lower part 20b of the transport container 20 has already warped, the instability caused by the deformation of the lower part 20b can be improved by joining the reinforcing fitting 10.

Claims (10)

1. A reinforcing fitting, which is attached to a lower part of a transport container formed of resin, comprising: a pair of opposite engagement parts with each other, the engagement portions extending upwards in a strip form along the side of the transport container from the lower side, and each having an end for engaging in a flange formed on a peripheral peripheral edge of the lower side, the end having a hook-shaped cross-section; and a strip that is placed laterally in the lower part, integrally formed with the pair of engaging parts, and connects the engaging parts with each other.

2. A reinforcing fitting, which is attached to the lower part of the transport container formed of resin, which comprises: a pair of opposite engagement parts with each other, each of the engaging parts having an end for engaging in a flange formed on an outer periphery of an opening in the upper part of the transport container, the end having a hook-shaped cross-section; and a strip that is located laterally along the sides and bottom of the transportation container, formed integrally with the pair of latching parts, and connects the latching parts with each other in an approximate U-shape .

3. A reinforcement fitting, which is attached to the lower part of the transport container formed of resin, comprising: a pair of opposite engagement parts with each other, each of the engagement parts having threaded holes to be connected next to the transport container by means of screws; and a strip that is located laterally along the sides and bottom of the transportation container, formed integrally with the pair of latching parts, and connects the latching parts with each other in an approximate U-shape .

The reinforcing fitting according to any of claims 1 to 3, characterized in that the strip is formed to be curved vertically upwards in the center in the longitudinal direction.

The reinforcement accessory according to any of claims 1 to 4, characterized in that each of the engagement parts has a rib formed to be pulled from a projected surface towards a recessed surface in order to cross a fold of a part. flexed, the rib that has a cross section in the shape of a crest.

The reinforcing fitting according to any of claims 1 to 5, characterized in that the strip is bent or curved in the longitudinal direction to be formed as a non-flat plate.

7. The reinforcing fitting according to claim 6, characterized in that the ends of the strip in a width direction are flexed, and the strip is formed as an approximate U. The reinforcing fitting according to claim 6, characterized in that the strip has a flange extending in a longitudinal direction. The reinforcement accessory according to any of claims 1 to 8, characterized in that the strip is heat-treated and formed to have elasticity. The reinforcing fitting according to any of claims 1 to 9, characterized in that the plurality of reinforcement accessories can be attached to the lower part of the transport container parallel to each other at the predetermined spacing.