JP5622016B2 - Four-way pallet and manufacturing method thereof - Google Patents

Description

  The present invention relates to a four-way pallet and a manufacturing method thereof.

  In nuclear power plants, containers that store work clothes for workers who have worked in areas with a high radiation dose, or containers such as drums that store radioactive waste, can be placed on a platform called a pallet or moved as they are. It is stored in a state where it is placed. In Patent Document 1, a pallet with a radiation shielding plate is disclosed.

Japanese Patent Laid-Open No. 09-197095

  However, in the technique described in Patent Document 1, containers such as containers and drum cans are placed without being firmly fixed, or are stacked and stored in multiple stages, so that they collapse or collapse when an earthquake occurs. As a result, containers such as containers and drums may open and the contents may come out.

  An object of the present invention is to provide a four-way pallet that can safely store containers such as containers and drums without falling or collapsing even if an earthquake or the like occurs.

In the four-way pallet according to the present invention, an insertion hole is interposed between a top plate and a bottom plate whose edges are bent at right angles to the back surface and the back surfaces are opposed to each other, and a plurality of intervenes between the top plate and the bottom plate. A bridge spacer for forming, a reinforcing member arranged to hold the bridge spacer on the back surface of the top plate and the bottom plate, and a stopper for holding the position of the container placed on the top plate. In the position where the bridge spacers and the reinforcing material are alternately fitted between the edges of the top plate or between the edges of the bottom plate and arranged so as to maintain each other , The bridge spacer and the reinforcing material are processed from an opening formed in the bottom plate .

  The four-way pallet may be stacked with another four-way pallet with a stopper attached to the bottom plate on the container placed on the top plate.

  The four-way pallet has an earthquake-resistant connecting bar having a short hole at one end and a long hole at the other end, and an earthquake-resistant connecting pin that is passed through the hole of the earthquake-resistant connecting bar. The seismic connection pin that has passed through the top plate to the bottom plate may be inserted into the connection hole, and the earthquake-resistant connection pin that has passed through the long hole may be inserted into the connection hole of the adjacent four-way pallet. .

The manufacturing method of the four-way pallet according to the present invention includes a cutting press step for bending the edges of the top plate and the bottom plate at right angles to the back side and opening openings and connecting holes, and a bridge between the edges of the bottom plate. A member arranging step for alternately fitting spacers and reinforcing materials and arranging them so as to maintain their positions, and overlapping so that the back surfaces of the top plate and the bottom plate face each other , and the bridge spacer from the opening. And a step of forming an insertion hole between the bridge spacer and a stopper for holding the position when the container is placed on the top plate by processing the reinforcing material, and attaching the opening And a finishing step for fitting a deck plate for closing .

  According to the present invention, containers such as containers and drums can be safely stored without falling or collapsing even if an earthquake or the like occurs.

It is a top view of the four-way pallet concerning the present invention. It is a front view of the four-way pallet which concerns on this invention, (a) is the case of the base pallet used for the lowest stage, (b) is the case of the upper pallet used for the other stage. It is sectional drawing of the four-way pallet which concerns on this invention, (a) is the case where it cut | disconnects by AA, (b) is the case where it cut | disconnects by BB. It is a flowchart which shows the manufacturing method of the four-way pallet which concerns on this invention. It is a figure which shows the cutting press processing step in the manufacturing method of the four-way pallet which concerns on this invention, (a) is the processed board | plate material, (b) is the processed member. It is a figure which shows the member arrangement | positioning step in the manufacturing method of the four-way pallet which concerns on this invention. It is a figure which shows the stacking | superposition step in the manufacturing method of the four-way pallet which concerns on this invention, (a) is the superimposed main body, (b) is the remaining member. It is a figure which shows the finishing step in the manufacturing method of the four-way pallet which concerns on this invention. It is a figure which shows the case where two or more four-way pallets which concern on this invention are connected. It is a figure which shows the state which piled up the four-way pallet which concerns on this invention, and was connected in multiple numbers. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the reinforcement | strengthening reinforcement material of the four-way pallet which concerns on this invention, (a) is sectional drawing cut | disconnected by AA, (b) is the cross section cut | disconnected by the top view and CC of a reinforcement material FIG.

  The object of safely storing containers such as containers and drums without falling down or collapsing even if an earthquake or the like occurs is realized by the four-way pallet according to the present invention.

  Initially, the whole structure of the four-way pallet which concerns on this invention is demonstrated in detail using FIGS. 1-3.

  The four-way pallet 10 includes at least a top plate 20, a bottom plate 21, bridge spacers 60, 61, 62, a reinforcing member 62, and a stopper 30. As shown in FIG. 2 (a), the four-way pallet 10 includes a base pallet 10a used at the first level as the lowest level, and a second level as the other level as shown in FIG. 2 (b). There is an upper pallet 10b used above. The base pallet 10a has only the stopper 30 on the upper surface side, while the upper pallet 10b has the upper stopper 30 on the upper surface side and the lower stopper 31 on the lower surface side.

  The top plate 20 and the bottom plate 21 are plate materials processed into the same shape. The top plate 20 has a surface on the upper side, the bottom plate 21 has a surface on the lower side, and the back surfaces of the top plate 20 and the bottom plate 21 are opposed to each other. The description of the bottom plate 21 that is the same as the top plate 20 is omitted.

  The top plate 20 is processed by bending a square metal plate or opening a hole. Depending on the container placed on the four-way pallet 10, the top plate 20 may be rectangular or other shape, or may be wood, plastic or other material.

  As shown in FIG. 2 and FIG. 3 (b), the top plate 20 bends the edges 26 on the four sides to the back side. The edge portion 26 is bent at a right angle with respect to the top plate 20, and the width to be bent is the same as the height of the reinforcing material 62.

  As shown in FIG. 1, the top plate 20 has four openings 22, eight connecting holes 23, one center hole 24, four corner holes 25, and the like. In addition, some of these may not be processed, and may be processed in addition to these.

  The openings 22 are formed by making holes penetrating in a square shape at four locations, an upper left region, an upper right region, a lower left region, and a lower right region of the top plate 22 in FIG. In addition, as shown to Fig.3 (a) (b), the folding | turning part 22a is formed in the four sides of the opening part 22 along an edge, respectively. Both ends of the folded portion 22a have projecting pieces toward the hole side. First, the folded portion 22a is folded toward the back surface side of the top plate 20, and the projecting piece is folded toward the hole side. Thereby, as shown in FIG. 1, even if the deck plate 40 is fitted in the opening 22, the folded portion 22a supports the deck plate 40 so that it does not fall.

  As shown in FIG. 1, the connecting holes 23 are formed by forming two through holes near the center of each side of the top plate 20. The center hole 24 is a through-hole formed in the center of the top plate 20 for the purpose of draining water. The corner holes 25 are through holes formed in the four corners of the top plate 20 for the purpose of draining water or using them as screw holes for attaching the stopper 30.

  The bridge spacers 60, 61, 62 are columnar bodies that are sandwiched between the top plate 20 and the bottom plate 21. The bridge spacers 60, 61, and 62 have the same height, but have different vertical or horizontal lengths depending on the position of use. By bending the metal plate or using four metal plates to form side surfaces and forming a hollow rectangular parallelepiped inside the upper and lower surfaces, the strength can be maintained even when the weight is reduced. Similar to the top plate 20, a material other than metal may be used.

  In FIG. 3A, one large bridge spacer 60, four middle bridge spacers 61, and four small bridge spacers 62 are used. The large bridge spacer 60 arranged at the center of the bottom plate 21 is set so that the positions of the four corners match the positions of the corners of the four openings 22 near the center of the bottom plate 21. The middle bridge spacer 61 arranged at the center of the four sides of the bottom plate 21 has one long side in contact with the edge portion 26 of the bottom plate 21 and both ends of the other long side aligned with the corner positions of two adjacent openings 22. To. The small bridge spacers 62 arranged at the four corners of the bottom plate 21 are in contact with the corners of the bottom plate 21 at one corner and match the corners of the one opening 22 with the diagonal corners.

  Since the bridge spacers 60, 61, 62 are arranged at intervals, when the cross-sectional shape of the large bridge spacer 60 is a square, the length of the long side of the middle bridge spacer arranged on each side of the bottom plate 21 is the same. . Moreover, when the cross-sectional shape of the small bridge spacer 62 is a square, the length of the short side of the middle bridge spacer disposed on each side of the bottom plate 21 is the same.

  The reinforcing member 63 is a member that is disposed between the adjacent bridge spacers 60, 61, 62 and maintains the position of the bridge spacers 60, 61, 62. In addition, the insertion hole 70 is formed by ensuring the space | interval of the bridge spacers 60, 61, 62 interposed between the top plate 20 and the bottom plate 21 by the reinforcing material 63. As shown in FIG. 3B, the reinforcing member 63 is formed with a bent portion 63a so that both sides of the metal plate are folded, and the bent portion 63a is attached to the back surface of the top plate 20 or the back plate 21 by welding or the like. To wear. The first bend is for making a height with respect to the upper surface, and the next bend is for making the tip part a sticking surface. Similar to the top plate 20, a material other than metal may be used.

  In FIG. 3A, a reinforcing member 63 is interposed between the large bridge spacer 60 at the center and the middle bridge spacer 61 in contact with the edge 26 at the center of each side of the bottom plate 21. Further, a reinforcing material 63 is interposed between the middle bridge spacer 61 at the center of each side of the bottom plate 21 and the small bridge spacers 62 at the four corners of the bottom plate 21 in a state of being in contact with the edge portion 26 of the bottom plate 21.

  At this time, the members arranged alternately maintain the position between each other between the opposing edge portions 26 of the bottom plate 21. Therefore, positioning is easy without using a jig or the like when welding the bottom plate 21.

  The bridge spacers 60, 61 and 62 are provided at point target positions with respect to the corners of the opening 22, and the reinforcing member 63 is provided at a line target position with respect to the sides of the opening 22. Therefore, when the shape of the opening 22 is a square, the distance between the bridge spacers 60, 61, 62 is the same, and therefore the length of the reinforcing material 63 is also the same.

  As shown in FIG. 2A or 2B, the insertion hole 70 is between the bridge spacers 60, 61, 62 and between the reinforcing member 63 of the top plate 20 and the reinforcing member 63 of the bottom plate 21. The space is formed in two, and there are two each in the four directions of the front and rear direction and the left and right direction which are the side surfaces of the four-way pallet 10.

  As shown in FIG. 3B, the edge portions 26 of the top plate 20 and the back plate 21 and the reinforcing material 63 have the same height and are connected to each other, so that a fork such as a forklift can be easily inserted into the insertion hole 70. Can be plugged into.

  The stopper 30 is a member that holds the position of the container placed on the four-way pallet 10, and as shown in FIG. 1, a metal plate material is attached in the vicinity of the four corners of the top plate 20 according to the shape of the bottom surface of the container. . If the container is rectangular like a box, the stopper 30 is attached in a key shape, and if it is cylindrical like a drum can, the stopper 30 is attached in an arc shape. The stopper 30 can prevent the container from sliding off the four-way pallet 10.

  When stacking containers placed on the four-way pallet 10, the bottom four-way pallet 10 has a flat bottom surface 21 like the base pallet shown in FIG. For the pallet 10, a stopper 31 is attached to the lower surface of the bottom plate 21 like the upper pallet shown in FIG.

  The stopper 31 is a member that holds the position of the four-way pallet 10 placed on the container, and a metal plate is attached to the vicinity of the four corners of the bottom plate 21 according to the shape of the upper surface of the container. If the container is rectangular like a box, the stopper 31 is attached in a key shape. If the container is cylindrical like a drum can, the stopper 31 is attached in an arc shape.

  If the upper surface of the container is not flat, the shape of the bottom plate 21 and the stopper 31 of the upper pallet is processed according to the container. The stopper 31 can maintain the stable state of the four-way pallet 10 stacked on the container.

  The stoppers 30 and 31 may be made of a material other than metal as long as the position of the container is maintained and the stability of the stacked containers can be maintained. If the shape and size of the top and bottom surfaces of the container are the same, the stopper 30 and the stopper 31 are in the same position on the top plate 20 and the bottom plate 21, but if the shape and size of the top and bottom surfaces are different, It will be tailored to each.

  The deck plate 40 is a metal plate material that is fitted to close the opening 22 after the work such as welding using the opening 22 of the top plate 20 or the bottom plate 21 is completed. Since the top plate 20 and the bottom plate 21 each have four openings 22, the deck plates 40 are fitted into all the openings 22. By bending each edge of the deck plate 40 to the back side to provide a height, the weight can be reduced by a thin plate material.

  Since the folded portion 22a is formed at the edge of the opening portion 22 in accordance with the height of the deck plate 40, the deck plate 40 does not fall into the interior and is connected to the top plate 20 or the bottom plate 21. The deck plate 40 can be fitted.

  The hole at the center of the deck plate 40 is opened for the purpose of weight reduction or drainage. The deck plate 40 may not be attached for weight reduction, or a material other than metal may be used.

  The corner member 50 is attached to reinforce or protect the four corners of the four-way pallet 10 as shown in FIG. 1 after the top plate 20 and the bottom plate 21 are aligned with each other via the bridge spacers 60, 61, 62. It is a metal plate. A plate material having a length not exceeding the height of the four-way pallet 10 is bent at a right angle and attached to the four corners on the side surface of the four-way pallet 10.

  By sticking the corner member 50, it is possible to prevent the top plate 20 and the bottom plate 21 of the four-way pallet 10 from peeling off even when the corners of the four-way pallet 10 collide with other objects. Scratching can be suppressed.

  Next, a method for manufacturing the four-way pallet having the above configuration will be described in detail with reference to FIGS. As shown in FIG. 4, the four-sided pallet manufacturing method 11 is performed by a cutting press processing step 12, a member arranging step 13, an overlapping step 14, and a finishing step 15.

  In the cutting press processing step 12, as shown in FIG. 5A, two plate materials are processed into a top plate 20 and a bottom plate 21. Fig.5 (a) has shown the back surface of the baseplate 21, and the top plate 20 is processed similarly. First, the plate material is cut into the shape and size of the upper surface or the bottom surface of the four-way pallet 10, and holes such as the opening 22, the connection hole 23, the center hole 24, and the corner hole 25 are formed. Next, the edge part 26 of a board | plate material is bend | folded to the back surface side, the edge of the opening part 22 is also bend | folded to the back surface side, and it folds back to the opposite side, and forms the folding | turning part 22a. Cutting (shearing), drilling, and the like are performed by pressing, but may be processed by other processing methods. In addition, processing required for the shape of other members is also performed.

  In the cutting press processing step 12, as shown in FIG. 5B, the bridge spacers 60, 61, 62, the reinforcing material 63 and the like are also processed and prepared. The bridge spacers 60, 61, and 62 are formed by bending a plate material of each size into a shape of only the side surface of the box, and the reinforcing material 63 is bent twice inside to form a bent portion 63a. The space | interval which does not contact both ends of is left. One large bridge spacer 60, four medium bridge spacers 61, four small bridge spacers 62, and twelve reinforcing members 63 are prepared.

  As shown in FIG. 6, the member arrangement step 13 arranges bridge spacers 60, 61, 62 on the bottom plate 21, inserts a reinforcing material 63 between the bridge spacers 60, 61, 62, and bridge spacers 60, 61, The position 62 is fixed.

  Specifically, the large bridge spacer 60 is disposed at the center of the bottom plate 21, the small bridge spacers 62 are disposed at the four corners of the bottom plate 21, and the middle bridge spacer 61 is disposed at an intermediate position between the two small bridge spacers 62. Note that one side of the medium bridge spacer 61 and two adjacent sides of the small bridge spacer 62 are in contact with the edge 26 of the bottom plate 21.

  Further, a reinforcing material 63 is disposed between the small bridge spacer 62 and the middle bridge spacer 61 so as to be in contact with the edge portion 26 of the bottom plate 21, and the reinforcing material 63 is disposed between the middle bridge spacer 61 and the large bridge spacer 60. .

  In this state, the bridge spacers 60, 61, 62 and the reinforcing material 63 are welded to the bottom plate 21. By alternately arranging the bridge spacers 60, 61, 62 and the reinforcing material 63, the positions of the bridge spacers 60, 61, 62 and the reinforcing material 63 are maintained and can be easily fixed without using a special jig. be able to.

  As shown in FIG. 7A, the stacking step 14 includes bridge spacers 60, 61, 62 on the opposite side to the side fixed to the bottom plate 21 so that the back surface of the top plate 20 and the back surface of the bottom plate 21 face each other. Put on the top of the. Since the bridge spacers 60, 61, 62 are already positioned, assembly is easy. The top plate 20 and the bottom plate 21 have openings 22 and insertion holes 70, and the bridge spacers 60, 61, 62 and the reinforcing material 63 are welded to the top plate 20 using them.

  In the overlapping step 14, as shown in FIG. 7B, the stopper 30, the deck plate 40, the corner member 50, and the like are also processed. Four stoppers 30 are matched to the shape of the container (four more if the stopper 31 is used), and four deck plates 40 are matched to the shape of the opening 22 (four more on the opposite side). Four corner members 50 are prepared according to the height of the bridge spacers 60, 61, 62. These may be processed together in the cutting press processing step 12.

  In the finishing step 15, as shown in FIG. 8, the deck plate 40 is fitted into the opening 22, the corner member 50 is attached to the side corner of the four-way pallet 10, and the stopper 30 is attached to the top plate 20. If the four-way pallet 10 is an upper pallet, a stopper 31 is also attached to the bottom plate 21.

  The stoppers 30 and 31 and the corner member 50 are fixed by welding or screwing at predetermined positions. The deck plate 40 may be simply fitted if it does not come off, but may be fixed by welding or the like.

  Next, the situation where the four-way pallet manufactured by the above method is used will be described in detail with reference to FIGS. The four-way pallet 10 is moved or stored with a container or the like placed thereon, but a plurality of the four-way pallets 10 are connected in the horizontal direction (front-rear direction and left-right direction) or stored in a stacked state in the vertical direction. To do.

  For the connection in the horizontal direction, as shown in FIG. 9A, a connection hole 23 formed in the top plate 20 and the bottom plate 21 is used. Since there are two connection holes 23 on each side of the top plate 20 and the bottom plate 21, the two connection holes 23 on the right side of the left four-way pallet 10 and the two holes on the left side of the right four-way pallet 10 are provided. The two four-way pallets 10 are connected to the two connecting holes 23 using the earthquake-resistant connecting bar 80 and the two earthquake-resistant connecting pins 84.

  The earthquake-resistant connecting bar 80 is a plate made of metal or other material having a length that reaches the connecting holes 23 on the adjacent sides when the two four-way pallets 10 are arranged, a short hole 81 on one end side, etc. A long hole 82 that is long in the longitudinal direction is provided on the end side, and a protrusion 83 that protrudes upward is provided in the center.

  The earthquake-resistant connecting pin 84 is a bar made of a metal or other material longer than the distance from the surface (upper surface) of the top plate 20 of the four-way pallet 10 to the surface (lower surface) of the bottom plate 21, and is wide in a brim shape at the top. And has a flange 84a.

  As shown in FIG. 9C, the short hole 81 and the long hole 82 of the earthquake-resistant connecting bar 80 both pass through the main body of the earthquake-resistant connecting pin 84, but do not pass the flange 84 a of the earthquake-resistant connecting pin 84. The short holes 81 and the long holes 82 of the earthquake-resistant connecting bar 80 are respectively suspended through the earthquake-resistant connecting pins 84. Moreover, the string hole 83a has penetrated the protrusion 83 of the earthquake-resistant connecting bar 80, and the string hole 83a is suspended through the string.

  A plurality of stacked containers 90 placed on the four-way pallet 10 are arranged in the horizontal direction, and when connecting them, the hand is extended from the side to the connection hole 23 of the lower four-way pallet 10. Since the seismic connection bar 80 is lowered from above, it is hung with a string.

  As shown in FIG. 9 (b), the seismic connection bar 80 hung from the string is lowered from above, and the seismic connection pin 84 is connected from the connection hole 23 of the top plate 20 of the four-way pallet 10 to the connection hole 23 of the bottom plate 21. To penetrate. This is performed with respect to both of the two adjacent four-way pallets 10 with respect to the connecting holes 23 arranged side by side. At this time, since the long hole 82 of the earthquake-resistant connecting bar 80 is long, even if there is an error in the distance between the connecting holes 23 of the four-way pallet 10 arranged, it can be compensated. When the earthquake-resistant connecting pin 84 is stuck, the string is pulled out from the string hole 83a of the earthquake-resistant connecting bar 80.

  Regarding the stacking in the vertical direction, as shown in FIG. 10, the base pallet 10a of the four-way pallet 10 is used in the lowermost stage and a container 90 such as a container is placed on the upper stage, and the upper of the four-way pallet 10 is placed on the upper stage. A container 90 such as a container is placed using the pallet 10b. In FIG. 10, it is a three-stage stack, but depending on the size and durability of the container 90 and the four-way pallet 10, it is also possible to stack four stages or more. In addition, when the four-way pallet 10 can be stacked up to 20 tons in four stages, it can be loaded up to 5 tons per stage.

  When the containers 90 placed on the four-way pallet 10 are stacked, they are lifted upward by using a forklift or the like. However, since the insertion holes 70 are respectively provided in the four side surfaces of the four-way pallet 10, the stacking can be performed in any direction. Is possible.

  When they are stacked in the vertical direction, they can be stored in a state in which they are more unlikely to collapse or collapse by being connected in the horizontal direction at any stage. That is, containers such as containers and drums can be safely stored without falling down or collapsing even if an earthquake or the like occurs.

  Next, the case where the shape of the reinforcing material 63 is changed to enhance the earthquake resistance will be described in detail with reference to FIG.

  In the four-way pallet 10c, as shown in FIG. 11A, an edge reinforcing member 64 or an inner reinforcing member 65 is arranged between the bridge spacers 60, 61, 62 instead of the reinforcing member 63. The edge reinforcing member 64 increases the strength by widely filling a portion along the edge portion 26 of the top plate 20 or the bottom plate 21 between the middle bridge spacer 61 and the small bridge spacer 62. Further, the inner reinforcing member 65 increases the strength by filling a wide area from the center of the top plate 20 or the bottom plate 21 between the large bridge spacer 60 and the middle bridge spacer 61 to the edge portion 26.

  As shown in FIG. 11B, the edge reinforcing member 64 is formed so that the upper surface has the same length as one side of the small bridge spacer 62 or the short side of the middle bridge spacer 61. A bent portion 63a is formed by bending both sides of a plate material such as metal and folding back a portion to be attached to the back surface of the top plate 20 or the bottom plate 21. The bent portion 63a is in contact with the edge portion 26 of the top plate 20 or the bottom plate 21 on the upper surface. An inclined portion 64a having a side inclined downward is provided. It is preferable to incline the inclined portion 64a from a position of a quarter to a half on the side in contact with the edge portion 26. Note that only one end of the bent portion 63a may be folded back inward and the other end may not be folded back inward.

  The height of the edge reinforcing member 64 is the same height as that of the edge portion 26 on the side in contact with the edge portion 26 and the same height as that of the folded portion 22a on the side in contact with the opening portion 22. Since the inclined portion 64a is provided, the height of the edge portion 26 becomes lower and the entrance of the insertion hole 70 becomes wider. Since the insertion hole 70 becomes a tapered space by the inclined portion 64a, it becomes easy to insert a fork such as a forklift, and it is possible to prevent not only the four-way pallet 10c but also the fork and the container from being damaged.

  As shown in FIG. 11B, the inner reinforcing member 65 is formed so that the width of the upper surface is the same length as one side of the large bridge spacer 60 or the long side of the middle bridge spacer 61. A bent portion 63a is formed by bending both sides of a plate material such as metal and folding back the portion to be attached to the back surface of the top plate 20 or the bottom plate 21 so that the central portion of the upper surface becomes a V-shaped valley. A V-shaped groove 65a is provided by bending downward. Note that only one end of the bent portion 63a may be folded back inward and the other end may not be folded back inward.

  The height of the inner reinforcing member 65 is the same height as the folded portion 22 a of the opening 22, and the V-shaped groove 65 a is recessed to a position where the bottom of the groove is in contact with the back surface of the top plate 20 or the bottom plate 21. By providing the V-shaped groove 65a, the strength in the direction between the large bridge spacer 60 and the middle bridge spacer 61 is further increased. Thereby, the position of the bridge spacers 60, 61, 62 is maintained, and the earthquake resistance and the like can be improved.

  The edge reinforcing member 64 and the inner reinforcing member 65 may be of different shapes and materials as long as the purpose is to maintain the position of each member and improve the strength. In addition, the four-way pallets 10 and 10c take into consideration the ease of processing and manufacture, ease of use, and the like, but those with a slight change in design are also included for the purpose of improving earthquake resistance. Should be understood.

  As mentioned above, although the Example of this invention was described, this invention is not limited to these.

  10: Four-way pallet, 10a: Base pallet, 10b: Upper pallet, 10c: Four-way pallet, 11: Manufacturing method, 12: Cutting press processing step, 13: Member placement step, 14: Stacking step, 15: Finishing step, 20: Top plate, 21: Bottom plate, 22: Opening part, 22a: Folding part, 23: Connection hole, 24: Center hole, 25: Corner hole, 26: Edge part, 30: Upper stopper, 31: Lower stopper, 40: Deck plate, 50: Corner member, 60: Large bridge spacer, 61: Medium bridge spacer, 62: Small bridge spacer, 63: Reinforcement material, 63a: Bending part, 64: Edge reinforcement material, 64a: Inclined part, 65: inner reinforcing material, 65a: V-shaped groove, 70: insertion hole, 80: earthquake-resistant connecting bar 81: short-hole, 82: long hole, 83: projection, 83a: Himoana, 84: seismic coupling pins, 84a: flange 90: the container.

Claims (4)

A top plate and a bottom plate that bend the edge at a right angle to the back surface side and make the back surfaces face each other;
A bridge spacer for forming an insertion hole by interposing a plurality between the top plate and the bottom plate;
A reinforcing member arranged to hold the bridge spacer on the back of the top plate and the bottom plate;
A stopper for holding the position of the container placed on the top plate,
The bridge spacer and the reinforcing material are alternately fitted between the edges of the top plate or the edge of the bottom plate, and at the positions where they are arranged to maintain each other , the top plate and the top plate The bridge spacer and the reinforcing material were processed from the opening formed in the bottom plate,
A four-way pallet characterized by that. Stacking another four-way pallet with a stopper attached to the bottom plate on the container placed on the top plate,
The four-way pallet according to claim 1 . An earthquake-resistant connecting bar with a short hole at one end and a long hole at the other end;
An earthquake-resistant connecting pin passed through the hole of the earthquake-resistant connecting bar;
By inserting the earthquake-resistant connecting pin passed through the short hole into the connecting hole penetrating from the top plate to the bottom plate, and inserting the earthquake-resistant connecting pin passed through the long hole into the connecting hole of the adjacent four-way pallet Link,
The four-way pallet according to claim 1 or 2 , characterized in that. A cutting press processing step of bending the edges of the top plate and the bottom plate at right angles to the back surface side and opening openings and connecting holes;
A member arrangement step of alternately fitting bridge spacers and reinforcing materials between the edges of the bottom plate and arranging them so as to maintain their positions,
Overlaying the top plate and the bottom plate so that the back surfaces of the top plate and the bottom plate are opposed to each other, and forming the insertion hole between the bridge spacer by processing the bridge spacer and the reinforcing material from the opening ,
A stopper for holding the position when the container is placed on the top plate, and a finishing step for fitting a deck plate for closing the opening ,
A method of manufacturing a four-way pallet characterized by the above.

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