JP6530038B2 - Metal pallet and method of manufacturing metal pallet - Google Patents

Description

  The present invention relates to a metal pallet and a method of manufacturing the metal pallet.

  The metal pallet described in Patent Document 1 includes a horizontal member and a vertical member. The cross member is configured by fixing the first metal plate member and the second metal plate member by the leg members. The metal pallet is configured by arranging a plurality of horizontal members in parallel, and fixing the vertical members to the upper surface of the first metal plate member. A back surface member is arranged in parallel at both end portions of the lower surface of the second metal plate member, and the back surface member is fixed to the second metal plate member by welding.

JP 2004-123201 A

  In the metal pallet described in Patent Document 1, since the material cost and the processing cost can be reduced, the manufacturing cost can be reduced. However, there is still room for improvement in securing strength and reducing manufacturing costs.

  This invention is made in view of the said subject, and it aims at providing the manufacturing method of metal pallets which can ensure intensity | strength and can reduce manufacturing cost, and metal pallets.

  The metal pallet disclosed in the present application includes a top plate and a plurality of legs. A load is placed on the top plate. The plurality of legs support the top board. At least one leg of the plurality of legs supports the top plate and includes a first plate-like member extending in a first direction. The first plate member includes a first corrugated plate extending in the first direction and at least one first reinforcing member. The first corrugated sheet has at least one first protrusion extending along the first direction and at least one first recess extending along the first direction. The first reinforcing member reinforces the first corrugated sheet. The first reinforcing member is disposed in at least one of the first convex and the first concave.

  In the metal pallet disclosed in the present application, the first reinforcing member is preferably disposed along the lower surface of the first convex portion.

  In the metal pallet disclosed in the present application, the cross section of the first convex portion is preferably rectangular. Preferably, the first reinforcing member is formed in a U-shape.

  In the metal pallet disclosed in the present application, the first reinforcing member is preferably fixed to the lower surface of the first convex portion.

  In the metal pallet disclosed in the present application, at least one of the plurality of legs preferably includes at least one leg member and a second plate-like member. Preferably, the at least one leg member supports the first plate-like member and is arranged along the first direction. Preferably, the second plate member is fixed to the lower end of the leg member and extends in the first direction. The second plate member preferably includes a second corrugated plate extending in the first direction and at least one second reinforcing member. Preferably, the second corrugated sheet has at least one second convex portion extending along the first direction and at least one second concave portion extending along the first direction. Preferably, the second reinforcing member reinforces the second corrugated sheet. The second reinforcing member is preferably disposed between the second recess and the leg member.

  Preferably, the metal pallet disclosed in the present application further comprises a bottom plate. The bottom plate is preferably fixed to the lower surface of the leg.

  In the metal pallet disclosed in the present application, the bottom plate preferably includes at least one third corrugated plate and a third reinforcing member. Preferably, the at least one third corrugated sheet extends in a second direction different from the first direction. Preferably, the third reinforcing member reinforces the third corrugated sheet. Preferably, the third corrugated sheet has at least one third convex portion extending in the second direction and at least one third concave portion extending in the second direction. The third reinforcing member is preferably disposed between the third recess and the second plate-like member.

  In the metal pallet disclosed in the present application, the top plate preferably includes at least one fourth corrugated plate and at least one fourth reinforcing member. Preferably, the fourth wave plate extends in a third direction different from the first direction. Preferably, the fourth reinforcing member reinforces the fourth corrugated sheet. It is preferable that the fourth corrugated sheet has at least one fourth convex portion extending in the third direction and at least one fourth concave portion extending in the third direction. The fourth reinforcing member is preferably disposed between the fourth convex portion and the first plate-like member.

  The method of manufacturing a metal pallet disclosed in the present application is a method of manufacturing a metal pallet provided with a top plate on which a conveyed product is placed, and a plurality of legs supporting the top plate. At least one leg of the plurality of legs supports the top plate and includes a first plate-like member extending in a first direction. The first plate member includes a first corrugated plate extending in the first direction and at least one first reinforcing member. The first corrugated sheet has at least one first protrusion extending along the first direction and at least one first recess extending along the first direction. The first reinforcing member reinforces the first corrugated sheet. The method of manufacturing the metal pallet includes a first disposing step and a first fixing step. In the first disposing step, the first reinforcing member is disposed in at least one of the first convex portion and the first concave portion. In the first fixing step, the first reinforcing member is fixed to at least one of the first convex portion and the first concave portion.

  In the method for manufacturing a metal pallet disclosed in the present application, the leg preferably includes at least one leg member and a second plate-like member. It is preferable that the leg member supports the first plate member and is arranged along the first direction. Preferably, the second plate member is fixed to the lower end of the leg member and extends in the first direction. The second plate member preferably includes a second corrugated plate extending in the first direction and at least one second reinforcing member. Preferably, the second corrugated sheet has at least one second convex portion extending along the first direction and at least one second concave portion extending along the first direction. Preferably, the second reinforcing member reinforces the second corrugated sheet. Preferably, the method of manufacturing the metal pallet further includes a second disposing step and a second fixing step. In the second disposing step, preferably, the second reinforcing member is disposed between the second recess and the leg member. In the second fixing step, preferably, the second reinforcing member is fixed to the second recess.

  In the method for manufacturing a metal pallet disclosed in the present application, the metal pallet preferably further includes a bottom plate fixed to the lower surface of the second plate member. The bottom plate preferably includes at least one third corrugated plate and at least one third reinforcing member. Preferably, the third corrugated plate extends in a second direction different from the first direction. Preferably, the third reinforcing member reinforces the third corrugated sheet. It is preferable that the third corrugated sheet has at least one third convex portion extending in the second direction and at least one third concave portion extending in the second direction. It is preferable that the method for manufacturing the metal pallet further includes a third disposing step and a third fixing step. In the third disposing step, the third reinforcing member is preferably disposed between the third recess and the second plate-like member. In the third fixing step, the third reinforcing member is preferably fixed to the third recess.

  In the method of manufacturing a metal pallet disclosed in the present application, the top plate preferably includes at least one fourth corrugated plate and at least one fourth reinforcing member. Preferably, the fourth wave plate extends in a third direction different from the first direction. Preferably, the fourth reinforcing member reinforces the fourth corrugated sheet. The fourth corrugated sheet preferably has at least one fourth convex portion extending in the third direction and at least one fourth concave portion extending in the third direction. It is preferable that the method for manufacturing the metal pallet further includes a fourth disposing step and a fourth fixing step. In the fourth disposing step, the fourth reinforcing member is preferably disposed between the fourth convex portion and the first plate-like member. In the fourth fixing step, the fourth reinforcing member is preferably fixed to the fourth convex portion.

  According to the metal pallet of the present invention and the method of manufacturing the metal pallet, the strength of the metal pallet can be secured to reduce the manufacturing cost of the metal pallet.

It is a perspective view showing the composition of the metal pallet concerning the embodiment of the present invention. It is an exploded perspective view showing the composition of the 1st tabular member concerning the embodiment of the present invention. (A) is a perspective view which shows the structure of a 1st plate-shaped member. (B) is a side view which shows the structure of a 1st plate-shaped member. It is an exploded perspective view showing composition of a leg concerning an embodiment of the present invention. It is a perspective view showing composition of a leg concerning an embodiment of the present invention. It is an exploded perspective view showing the composition of the metal pallet concerning the embodiment of the present invention. It is a flowchart which shows the manufacturing method of the metal pallet which concerns on embodiment of this invention. It is a flowchart which shows a leg assembly process. It is a flowchart which shows a baseplate assembly process. It is a flowchart which shows a top-plate assembly process.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings (FIGS. 1 to 10). In the drawings, the same or corresponding portions are denoted by the same reference characters and description thereof will not be repeated.

  First, the configuration of a metal pallet 100 according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a perspective view showing the configuration of a metal pallet 100 according to an embodiment of the present invention. As shown in FIG. 1, the metal pallet 100 includes a plurality of top plates 1, a plurality of legs 2, and a plurality of bottom plates 3. In the embodiment of the present invention, the number of the top plates 1 disposed on the metal pallet 100 is five, the number of the legs 2 is three, and the number of the bottom plates 3 is five.

  Further, in FIG. 1, an X axis, a Y axis and a Z axis are described. The Z axis is parallel to the vertical direction. The X and Y axes are parallel to the horizontal direction. The X, Y and Z axes are orthogonal to one another. Specifically, the X axis indicates the longitudinal direction of the leg 2. The Y axis indicates the longitudinal direction of the top 1. The X-axis direction corresponds to the “first direction”. The Y-axis direction corresponds to the “second direction” and the “third direction”.

  A load is placed on the top surface of the top plate 1. The five top plates 1 are arranged along the X-axis direction at a predetermined interval from one another. Specifically, the five tops 1 are arranged at equal intervals. Moreover, the five tops 1 are arrange | positioned in parallel mutually.

  Among the three legs 2, the claws of a forklift are inserted between two adjacent legs 2. That is, the opening SP1 surrounded by the two legs 2 adjacent to each other, the top plate 1 and the bottom plate 3 functions as a so-called "fork insertion port".

  The leg 2 supports the top 1. The legs 2 are fixed to the top 1 by spot welding, for example. The leg 2 includes a first plate member 21, a plurality of leg members 22, and a second plate member 23. In the embodiment of the present invention, the leg 2 comprises four leg members 22. Among the four leg members 22, the fork of a forklift is inserted between the end leg member 22 and the inner leg member 22. That is, the opening SP2 surrounded by the leg members 22 at the end, the inner leg member 22, the first plate member 21, and the second plate member 23 functions as a so-called "fork insertion port".

  The longitudinal direction of the leg 2 is disposed along the X axis. The three legs 2 are arranged along the Y-axis direction at predetermined intervals. Specifically, the three legs 2 are arranged at equal intervals. Also, the three legs 2 are arranged parallel to one another.

  The bottom plate 3 is fixed to the lower surface of the second plate-like member 23. The five bottom plates 3 are arranged along the X-axis direction at predetermined intervals from one another. Specifically, the five bottom plates 3 are arranged at equal intervals. Also, the five bottom plates 3 are arranged in parallel to one another. In other words, the bottom plate 3 is disposed at a position symmetrical to the top plate 1 with respect to the leg 2.

  As described above with reference to FIG. 1, in the embodiment of the present invention, the opening SP1 and the opening SP2 function as “fork insertion ports”. Specifically, the metal pallet 100 can insert the claws of the forklift from the positive direction of the X axis. Further, the claws of the forklift can be inserted into the metal pallet 100 from the negative direction of the X axis. Furthermore, the claws of the forklift can be inserted into the metal pallet 100 from the positive direction of the Y axis. In addition, the claws of the forklift can be inserted into the metal pallet 100 from the negative direction of the Y axis. Therefore, the metal pallet 100 functions as a so-called "four-way pallet".

  Further, the metal pallet 100 is provided with a bottom plate 3 fixed to the lower surface of the leg 2. Therefore, when the metal pallets 100 on which the articles are placed are stacked, damage to the articles can be suppressed.

  Furthermore, in the embodiment of the present invention, since the bottom plate 3 is disposed at a position symmetrical to the top plate 1 with respect to the legs 2, the bottom plate 3 of the metal pallet 100 can be used as the top plate 1. That is, even if the metal pallet 100 is rotated 180 degrees around the X axis, it can be used as the metal pallet 100 as it is. When rotated 180 degrees around the X axis, the bottom plate 3 functions as the top plate 1, and the top plate 1 functions as the bottom plate 3.

  As described with reference to FIG. 1, in the embodiment of the present invention, the leg 2 includes the first plate-like member 21, the plurality of leg members 22 and the second plate-like member 23, but the present invention It is not limited to. The leg 2 may be provided with the first plate member 21. For example, instead of the plurality of leg members 22 and the second plate member 23, a square pipe may be disposed. In this embodiment, the metal pallet 100 functions as a "four-way pallet" by forming holes for inserting the forks of a forklift into the square pipe at appropriate positions.

  Next, the configuration of the first plate member 21 will be described with reference to FIG. FIG. 2 is an exploded perspective view showing the configuration of the first plate-like member 21 according to the embodiment of the present invention. As shown in FIG. 2, the first plate member 21 has a first corrugated plate 211, a first reinforcing member 212, and a first reinforcing member 213.

  The first wave plate 211 is made of steel and extends along the X-axis direction. Further, the first corrugated sheet 211 has three first convex portions 211 a and two first concave portions 211 b. In the embodiment of the present invention, a portion projecting in the positive direction (upward direction) of the Z axis is referred to as a "convex portion", and a portion projecting in the negative direction (downward direction) of the Z axis is referred to as a "recessed portion". Do. The first convex portion 211 a and the first concave portion 211 b extend along the X-axis direction. The cross section of the first convex portion 211 a cut in a plane parallel to the Y-Z plane and the cross section cut in a plane parallel to the Y-Z plane of the first recess 211 b have a rectangular shape. The thickness of the first corrugated sheet 211 is, for example, 0.6 mm.

  The first reinforcing member 212 and the first reinforcing member 213 reinforce the first wave plate 211. The first reinforcing member 212 and the first reinforcing member 213 are disposed along the lower surface of the first convex portion 211a. The first convex portion 211 a in which the first reinforcing member 212 is disposed is positioned at the central portion in the Y-axis direction in the first corrugated sheet 211 among the three first convex portions 211 a. The first convex portions 211 a on which the first reinforcing members 213 are disposed are located at both ends in the Y-axis direction of the first corrugated sheet 211 among the three first convex portions 211 a. The first reinforcing member 212 and the first reinforcing member 213 are made of steel, and a cross section cut in a plane parallel to the YZ plane is formed in a U-shape. The thickness of the first reinforcing member 212 and the first reinforcing member 213 is, for example, 0.6 mm. Further, the first reinforcing member 212 and the first reinforcing member 213 are fixed to the lower surface of the first convex portion 211a. Specifically, the upper surface 212a of the first reinforcing member 212 is fixed by spot welding to the lower surface of the first convex portion 211a as indicated by a dashed dotted line WP, and the upper surface 213a of the first reinforcing member 213 is a dashed dotted line WP. As shown, it is fixed to the lower surface of the 1st convex part 211a by point welding.

  As described with reference to FIGS. 1 and 2, in the embodiment of the present invention, the three legs 2 each include the first plate-like member 21, but the present invention is not limited thereto. Of the three legs 2, at least one leg 2 may be provided with the first plate member 21. For example, among the three legs 2, the legs 2 at both ends in the Y-axis direction include the first plate-like members 21, and the legs 2 at the center in the Y-axis direction do not include the first plate-like members 21. May be. Further, for example, among the three legs 2, the center leg 2 in the Y-axis direction includes the first plate-like member 21, and the legs 2 at both ends in the Y-axis direction include the first plate-like member 21. There may be no form. When the leg 2 does not include the first plate member 21, the first wave plate 211 may be disposed instead of the first plate member 21.

  Next, the configuration of the first plate member 21 will be further described with reference to FIG. FIG. 3A is a perspective view showing the configuration of the first plate-like member 21. FIG. FIG. 3 (b) is a side view showing the configuration of the first plate-like member 21.

  As shown in FIGS. 3A and 3B, the upper surface 212a of the first reinforcing member 212 and the upper surface 213a of the first reinforcing member 213 are disposed in close contact with the lower surface of the first convex portion 211a. Further, the outer side surfaces of the first reinforcing member 212 and the first reinforcing member 213 are disposed in close contact with the inner side surface of the first convex portion 211a.

  As described above with reference to FIGS. 1 to 3, in the embodiment of the present invention, the first convex portion 211 a of the first wave plate 211 constituting the leg 2 is separated from the top plate 1. Since the first reinforcing member 212 and the first reinforcing member 213 are disposed on the side, the strength of the leg 2 can be improved. Therefore, since the thickness of the first corrugated sheet 211 can be reduced, the strength of the metal pallet 100 can be secured, and the manufacturing cost of the metal pallet 100 can be reduced.

  Further, since the first reinforcing member 212 and the first reinforcing member 213 are disposed along the lower surface of the first convex portion 211a, the strength of the leg 2 can be further improved. Therefore, since the thickness of the first corrugated sheet 211 can be further reduced, the strength of the metal pallet 100 can be secured and the manufacturing cost of the metal pallet 100 can be further reduced.

  Furthermore, the cross section of the first convex portion 211a is rectangular, and the first reinforcing member 212 and the first reinforcing member 213 are formed in a U-shape. Therefore, the first reinforcing member 212 and the first reinforcing member 213 can be manufactured at low cost. Therefore, the strength of the metal pallet 100 can be secured and the manufacturing cost of the metal pallet 100 can be further reduced.

  Moreover, since the 1st reinforcement member 212 and the 1st reinforcement member 213 are fixed to the lower surface of the 1st convex part 211a, the intensity | strength of the leg 2 can further be improved. Therefore, since the thickness of the first corrugated sheet 211 can be further reduced, the strength of the metal pallet 100 can be secured and the manufacturing cost of the metal pallet 100 can be further reduced.

  As described with reference to FIGS. 1 to 3, in the embodiment of the present invention, the first reinforcing members 212 and 213 are disposed in the three first convex portions 211 a, but the present invention is not limited thereto. . The first reinforcing member may be disposed in at least one first convex portion 211 a or at least one first concave portion 211 b among the three first convex portions 211 a and the two first concave portions 211 b. For example, the first reinforcing member 212 may be disposed only on the first convex portion 211a located at the center in the Y-axis direction among the three first convex portions 211a. Further, for example, the first reinforcing member 213 may be disposed only on the first convex portions 211 a located at both ends in the Y axis direction among the three first convex portions 211 a. The strength of the leg 2 can be improved as the number of the first convex portions 211a for arranging the first reinforcing member is larger. Furthermore, for example, the first reinforcing member may be disposed in the two first recesses 211 b. In this form, the first reinforcing member is disposed on the upper surface side of the first recess 211 b.

  Next, the configuration of the leg 2 will be described with reference to FIGS. 1 to 5. FIG. 4 is an exploded perspective view showing the configuration of the leg 2 according to the embodiment of the present invention. FIG. 5 is a perspective view showing the configuration of the leg 2 according to the embodiment of the present invention. As shown in FIGS. 1, 4 and 5, the leg 2 includes a first plate-like member 21, four leg members 22 and a second plate-like member 23.

  The leg member 22 is made of steel and formed in a square pipe shape, and includes two side walls 221, a rear wall 222, a front wall 227, and a gap 226. The two side walls 221 form both end surfaces of the leg member 22 in the Y-axis direction, and are formed parallel to the XZ plane. The two side walls 221 are disposed to face each other.

  The rear wall 222 forms an end surface of the leg member 22 in the negative direction of the X axis, and is formed parallel to the YZ plane. The rear wall 222 is disposed to face the front wall 227. The rear wall 222 has a member connected to one side wall 221 and a member connected to the other side wall 221. A gap 226 is formed between a member connected to one side wall 221 and a member connected to the other side wall 221. The front wall 227 forms an end surface of the leg member 22 in the positive direction of the X axis, and is formed parallel to the YZ plane. The front wall 227 is disposed to face the rear wall 222.

  The leg member 22 further includes a protrusion 223, a protrusion 224, a flange 225, and a flange 228.

  The protrusion 223 is formed between the two side walls 221 and the rear wall 222. Also, the protrusions 223 are formed on the upper and lower portions of the side wall 221, respectively. The protrusion 223 formed on the upper portion of the side wall 221 is formed to protrude in the positive direction (upward) of the Z axis with respect to the rear wall 222. The protruding portion 223 formed on the upper portion of the side wall 221 is fitted into the first convex portions 211 a at both ends in the Y axis direction of the first corrugated sheet 211. A protrusion 223 formed at a lower portion of the side wall 221 is formed to protrude in the negative direction (downward) of the Z axis with respect to the rear wall 222. The protrusion 223 formed on the lower portion of the side wall 221 is fitted into the second recess 231 b at both ends in the Y axis direction of the second wave plate 231.

  The protrusion 224 is formed between the two side walls 221 and the front wall 227. Also, the protrusions 224 are formed on the upper and lower portions of the side wall 221, respectively. A protrusion 224 formed on the top of the side wall 221 is formed to protrude in the positive direction (upward) of the Z axis with respect to the front wall 227. The protrusions 224 formed on the upper portion of the side wall 221 are fitted into the first protrusions 211 a (the first reinforcing member 213) at both ends in the Y axis direction of the first wave plate 211. A protrusion 224 formed at a lower portion of the side wall 221 is formed to protrude in the negative direction (downward) of the Z axis with respect to the front wall 227. The protrusion 223 formed in the lower part of the side wall 221 is fitted in the second recess 231 b (second reinforcing member 233 described later) at both ends of the second corrugated plate 231 in the Y-axis direction.

  The flange portion 225 is a substantially rectangular plate-like member, and is formed to be continuous with the upper end and the lower end of the rear wall 222, respectively. The flange portion 225 is formed to project from the upper end and the lower end of the rear wall 222 in the negative direction of the X axis. The flange portion 225 formed on the upper end of the rear wall 222 is fixed to the lower surface of the first recess 211 b of the first corrugated plate 211 by spot welding, as indicated by a dashed dotted line WP. The flange portion 225 formed at the lower end of the rear wall 222 is fixed to the upper surface of the second convex portion 231 a of the second corrugated plate 231 by spot welding as shown by a dashed dotted line WP.

  The flange portion 228 is a substantially rectangular plate-like member, and is formed to be continuous with the upper end and the lower end of the front wall 227, respectively. The flange portion 228 is formed to project from the upper end and the lower end of the front wall 227 in the positive direction of the X axis. The flange portion 228 formed on the upper end of the front wall 227 is fixed by spot welding to the lower surface of the first concave portion 211 b of the first corrugated plate 211 as shown by a dashed dotted line WP. The flange portion 228 formed at the lower end of the front wall 227 is fixed to the upper surface of the second corrugated sheet 231 by spot welding, as indicated by a dashed dotted line WP.

  The second plate member 23 includes a second corrugated plate 231, a second reinforcing member 232, and a second reinforcing member 233. The second corrugated plate 231 is a steel plate member and extends along the X-axis direction. Further, the second corrugated plate 231 has two second convex portions 231 a and three second concave portions 231 b. The second convex portion 231a and the second concave portion 231b extend along the X-axis direction. The cross section of the second convex portion 231 a cut in a plane parallel to the Y-Z plane and the cross section cut in a plane parallel to the Y-Z plane of the second recess 231 b have a rectangular shape. The thickness of the second corrugated sheet 231 is, for example, 0.6 mm.

  The second reinforcing member 232 and the second reinforcing member 233 reinforce the second corrugated plate 231. The second reinforcing member 232 and the second reinforcing member 233 are disposed along the upper surface of the second recess 231 b. The second recess 231 b in which the second reinforcing member 232 is disposed is located at the central portion in the Y axis direction in the second corrugated plate 231 among the three second recesses 231 b. The second recesses 231 b in which the second reinforcing member 233 is disposed are located at both ends in the Y axis direction in the second corrugated plate 231 among the three second recesses 231 b. The second reinforcing member 232 and the second reinforcing member 233 are members made of steel, and a cross section cut in a plane parallel to the YZ plane is formed in a U-shape. The second reinforcing member 232 and the second reinforcing member 233 are disposed between the second recess 231 b and the leg member 22. The thickness of the second reinforcing member 232 is, for example, 0.6 mm. Further, the second reinforcing member 232 and the second reinforcing member 233 are fixed to the upper surface of the second recess 231 b. Specifically, the second reinforcing member 232 and the second reinforcing member 233 are fixed to the upper surface of the second recess 231 b by point welding.

  As described above with reference to FIGS. 1 to 5, in the embodiment of the present invention, the second plate member 23 includes the second corrugated plate 231, the second reinforcing member 232, and the second reinforcing member 233. Have. The second corrugated plate 231 has two second protrusions 231a and three second recesses 231b. The second convex portion 231a and the second concave portion 231b extend along the X-axis direction. The second reinforcing member 232 and the second reinforcing member 233 reinforce the second corrugated plate 231. Since the second reinforcing member 232 and the second reinforcing member 233 are disposed between the second recess 231 b and the leg member 22, the strength of the leg 2 can be further improved. Therefore, since the thickness of the second corrugated sheet 231 can be reduced, the manufacturing cost of the metal pallet 100 can be further reduced.

  Further, since the second reinforcing member 232 and the second reinforcing member 233 are disposed along the upper surface of the second recess 231 b, the strength of the leg 2 can be further improved. Therefore, since the thickness of the second corrugated sheet 231 can be further reduced, the manufacturing cost of the metal pallet 100 can be further reduced.

  Furthermore, the cross section of the second recess 231 b is rectangular, and the second reinforcing member 232 and the second reinforcing member 233 are formed in a U-shape. Therefore, the 2nd reinforcement member 232 and the 2nd reinforcement member 233 can be manufactured cheaply. Therefore, the strength of the metal pallet 100 can be secured and the manufacturing cost of the metal pallet 100 can be further reduced.

  Moreover, since the 2nd reinforcement member 232 and the 2nd reinforcement member 233 are fixed to the upper surface of the 2nd crevice 231b, the intensity of leg 2 can further be raised. Therefore, since the thickness of the second corrugated sheet 231 can be further reduced, the strength of the metal pallet 100 can be secured, and the manufacturing cost of the metal pallet 100 can be further reduced.

  As described with reference to FIGS. 1 to 5, in the embodiment of the present invention, the second reinforcing members 232 and 233 are disposed in the three second recesses 231 b, but the present invention is not limited thereto. The second reinforcing member may be disposed in at least one second recess 231 b among the three second recesses 231 b. For example, the second reinforcing member 232 may be disposed only in the second recess 231 b located at the center in the Y-axis direction among the three second recesses 231 b. Further, for example, the second reinforcing member 233 may be disposed only in the second concave portions 231 b located at both ends in the Y-axis direction among the three second concave portions 231 b. Moreover, the strength of the leg 2 can be improved as the number of the second recesses 231b in which the second reinforcing member is disposed is larger.

  Next, the configurations of the bottom plate 3 and the top plate 1 will be described with reference to FIGS. FIG. 6 is an exploded perspective view showing the configuration of the metal pallet 100 according to the embodiment of the present invention. As shown in FIG. 6, the bottom plate 3 has a third corrugated plate 31 and a third reinforcing member 32. Moreover, the top plate 1 includes a fourth corrugated plate 11 and a fourth reinforcing member 12.

  The third corrugated plate 31 is a steel plate-like member and extends along the Y-axis direction. In addition, the third corrugated sheet 31 has two third convex portions 311 and three third concave portions 312. The third convex portion 311 and the third concave portion 312 extend along the Y-axis direction. The cross section of the third convex portion 311 cut in a plane parallel to the XZ plane and the cross section cut in a plane parallel to the XZ plane of the third recess 312 have a rectangular shape. The thickness of the third corrugated sheet 31 is, for example, 0.6 mm.

  The third reinforcing member 32 reinforces the third corrugated sheet 31. The third reinforcing member 32 is disposed along the upper surface of the third recess 312. The third concave portion 312 in which the third reinforcing member 32 is disposed is located at the central portion in the X axis direction in the third corrugated sheet 31 among the three third concave portions 312. The third reinforcing member 32 is a steel member, and is formed in a U-shaped cross section cut in a plane parallel to the XZ plane. The third reinforcing member 32 is disposed between the third recess 312 and the second plate member 23. The thickness of the third reinforcing member 32 is, for example, 0.6 mm. In addition, the third reinforcing member 32 is fixed to the upper surface of the third recess 312. Specifically, the third reinforcing member 32 is fixed to the upper surface of the third recess 312 by point welding.

  The fourth corrugated plate 11 is made of steel and extends along the Y-axis direction. Further, the fourth corrugated plate 11 has three fourth convex portions 111 and two fourth concave portions 112. The fourth convex portion 111 and the fourth concave portion 112 extend along the Y-axis direction. The cross section of the fourth convex portion 111 cut in a plane parallel to the XZ plane and the cross section cut in a plane parallel to the XZ plane of the fourth recess 112 are rectangular. The thickness of the fourth corrugated sheet 11 is, for example, 0.6 mm.

  The fourth reinforcing member 12 reinforces the fourth corrugated plate 11. The fourth reinforcing member 12 is disposed along the lower surface of the fourth convex portion 111. The fourth convex portion 111 in which the fourth reinforcing member 42 is disposed is positioned at a central portion in the X-axis direction in the fourth corrugated sheet 11 among the three fourth convex portions 111. The fourth reinforcing member 12 is made of steel and has a U-shaped cross section cut in a plane parallel to the XZ plane. The thickness of the fourth reinforcing member 12 is, for example, 0.6 mm. Also, the fourth reinforcing member 12 is fixed to the lower surface of the fourth convex portion 111. Specifically, the fourth reinforcing member 12 is fixed to the lower surface of the fourth convex portion 111 by point welding.

  The second plate-like member 23 of the leg 2 is fixed to the third corrugated plate 31 of the bottom plate 3. Specifically, the lower surface of the second concave portion 231b of the second corrugated sheet 231 is fixed to the upper surface of the third convex portion 311 of the third corrugated sheet 31 by point welding, as indicated by a dashed dotted line WP.

  The first plate-like member 21 of the leg 2 is fixed to the fourth corrugated plate 11 of the top plate 1. Specifically, the upper surface of the first convex portion 211 a of the first corrugated sheet 211 is fixed to the upper surface of the fourth concave portion 112 of the fourth corrugated sheet 11 by point welding, as indicated by a dashed dotted line WP.

  As described above with reference to FIGS. 1 to 6, in the embodiment of the present invention, the bottom plate 3 includes the third corrugated plate 31 and the third reinforcing member 32. The third corrugated sheet 31 has two third convex portions 311 and three third concave portions 312. The third convex portion 311 and the third concave portion 312 extend along the Y-axis direction. The third reinforcing member 32 reinforces the third corrugated sheet 31. The third reinforcing member 32 is disposed between the third recess 312 and the second plate-like member 23, so that the strength of the bottom plate 3 can be improved. Therefore, since the thickness of the third corrugated sheet 31 can be reduced, the strength of the metal pallet 100 can be secured and the manufacturing cost of the metal pallet 100 can be further reduced.

  Further, since the third reinforcing member 32 is disposed along the upper surface of the third recess 312, the strength of the bottom plate 3 can be further improved. Therefore, since the thickness of the third corrugated sheet 31 can be further reduced, the strength of the metal pallet 100 can be secured and the manufacturing cost of the metal pallet 100 can be further reduced.

  Furthermore, the cross section of the third recess 312 is rectangular, and the third reinforcing member 32 is formed in a U-shape. Thus, the third reinforcing member 32 can be manufactured inexpensively. Therefore, the strength of the metal pallet 100 can be secured and the manufacturing cost of the metal pallet 100 can be further reduced.

  Moreover, since the third reinforcing member 32 is fixed to the upper surface of the third recess 312, the strength of the bottom plate 3 can be further improved. Therefore, since the thickness of the third corrugated sheet 31 can be further reduced, the manufacturing cost of the metal pallet 100 can be further reduced.

  The top plate 1 includes a fourth corrugated plate 11 and a fourth reinforcing member 12. The fourth corrugated sheet 11 has three fourth convex portions 111 and two fourth concave portions 112. The fourth convex portion 111 and the fourth concave portion 112 extend along the Y-axis direction. The fourth reinforcing member 12 reinforces the fourth corrugated plate 11. Since the fourth reinforcing member 12 is disposed between the fourth convex portion 111 and the first plate member 21, the strength of the top plate 1 can be improved. Therefore, since the thickness of the fourth corrugated sheet 11 can be reduced, the strength of the metal pallet 100 can be secured and the manufacturing cost of the metal pallet 100 can be further reduced.

  Further, since the fourth reinforcing member 12 is disposed along the lower surface of the fourth convex portion 111, the strength of the top plate 1 can be further improved. Therefore, since the thickness of the fourth corrugated sheet 11 can be further reduced, the strength of the metal pallet 100 can be secured, and the manufacturing cost of the metal pallet 100 can be further reduced.

  Furthermore, the cross section of the fourth convex portion 111 is rectangular, and the fourth reinforcing member 12 is formed in a U-shape. Thus, the fourth reinforcing member 12 can be manufactured inexpensively. Therefore, the manufacturing cost of the metal pallet 100 can be further reduced.

  Further, since the fourth reinforcing member 12 is fixed to the lower surface of the fourth convex portion 111, the strength of the top plate 1 can be further improved. Therefore, since the thickness of the fourth corrugated sheet 11 can be further reduced, the strength of the metal pallet 100 can be secured, and the manufacturing cost of the metal pallet 100 can be further reduced.

  The second plate-like member 23 of the leg 2 is fixed to the third wave plate 31 of the bottom plate 3 by spot welding, and the first plate-like member 21 of the leg 2 is the fourth wave plate 11 of the top plate 1. The metal pallet 100 can be manufactured by a simple process because it is fixed by spot welding. Therefore, the strength of the metal pallet 100 can be secured and the manufacturing cost of the metal pallet 100 can be further reduced.

  Next, with reference to FIGS. 1 to 10, a method of manufacturing the metal pallet 100 according to the embodiment of the present invention will be described. FIG. 7 is a flowchart showing a method of manufacturing the metal pallet 100. FIG. 8 is a flowchart showing the “leg assembly process”. FIG. 9 is a flowchart showing the “bottom plate assembly process”. FIG. 10 is a flowchart showing the “top board assembling process”.

First, as shown in FIG. 7, the "leg assembly step" is performed in step S1. The “leg assembly step” indicates a step of assembling the leg 2.
Next, in step S2, a "bottom plate assembling step" is performed. The “bottom plate assembling step” indicates a step of assembling the bottom plate 3.
And a "top board assembling process" is performed in step S3. The “top board assembling process” indicates a process of assembling the top board 1.
Next, in step S4, the "whole assembly process" is performed, and the process ends. In the "whole assembly process", as described with reference to FIG. 6, the leg 2, the bottom plate 3 and the top plate 1 are fixed by point welding to assemble the metal pallet 100. As a result, the metal pallet 100 can be manufactured.

Next, the "leg assembly process" will be described with reference to FIG.
First, as shown in FIG. 8, in step S101, the "first arrangement step" is performed. In the “first arrangement step”, as described with reference to FIG. 2, the first reinforcing member 212 and the first reinforcing member 213 are arranged on the side of the first convex portion 211 a apart from the top plate 1.
Then, in step S103, the "first fixing step" is performed. In the "first fixing step", the first reinforcing member 212 and the first reinforcing member 213 are fixed to the first convex portion 211a. As a result, the first plate member 21 can be manufactured.

Next, in step S105, a "second placement step" is performed. In the “second disposing step”, as described with reference to FIG. 4, the second reinforcing member 232 and the second reinforcing member 233 are disposed between the second recess 231 b and the leg member 22.
And a "2nd fixing process" is performed in step S107. In the “second fixing step”, the second reinforcing member 232 and the second reinforcing member 233 are fixed to the second recess 231 b. As a result, the second plate member 23 can be manufactured.
Next, in step S109, the first plate member 21, the leg member 22, and the second plate member 23 are fixed by point welding. As a result, the leg 2 can be manufactured.

Next, the “bottom plate assembling step” will be described with reference to FIG.
First, as shown in FIG. 9, the “third arrangement step” is performed in step S201. In the “third disposing step”, as described with reference to FIG. 6, the third reinforcing member 32 is disposed between the third recess 312 and the second plate-like member 23.
Then, in step S203, the "third fixing step" is performed. In the “third fixing step”, the third reinforcing member 32 is fixed to the third recess 312. As a result, the bottom plate 3 can be manufactured.

Next, the "top board assembling process" will be described with reference to FIG.
First, as shown in FIG. 10, the “fourth arrangement step” is performed in step S301. In the “fourth arrangement step”, as described with reference to FIG. 6, the fourth reinforcing member 12 is arranged between the fourth convex portion 111 and the first plate-like member 21.
Then, in step S303, the "fourth fixing step" is performed. In the “fourth fixing step”, the fourth reinforcing member 12 is fixed to the fourth convex portion 111. As a result, the top 1 can be manufactured.

  As described above with reference to FIGS. 1 to 10, in the embodiment of the present invention, in the first arrangement step, the first reinforcing member 212 and the first reinforcing member 213 have the first convex shape of the first corrugated sheet 211. It arrange | positions on the side spaced apart from the top 1 with respect to the part 211a. Further, in the first fixing step, the first reinforcing member 212 and the first reinforcing member 213 are fixed to the first convex portion 211a. Therefore, the strength of the first plate member 21 can be improved by a simple procedure.

  Further, in the second arranging step, the second reinforcing member 232 and the second reinforcing member 233 are arranged between the second recess 231 b of the second corrugated plate 231 and the leg member 22. Also, in the second fixing step, the second reinforcing member 232 and the second reinforcing member 233 are fixed to the second recess 231 b. Therefore, the strength of the second plate member 23 can be improved by a simple procedure.

  Furthermore, in the third disposing step, the third reinforcing member 32 is disposed between the third concave portion 312 of the third corrugated sheet 31 and the second plate-like member 23. In the third fixing step, the third reinforcing member 32 is fixed to the third recess 312. Therefore, the strength of the bottom plate 3 can be improved by a simple procedure.

  In the fourth arrangement step, the fourth reinforcing member 12 is arranged between the fourth convex portion 111 of the fourth corrugated plate 11 and the first plate-like member 21. In the fourth fixing step, the fourth reinforcing member 12 is fixed to the fourth convex portion 111. Therefore, the strength of the top 1 can be improved by a simple procedure.

  The embodiments of the present invention have been described above with reference to the drawings. However, this invention is not limited to said embodiment, It is possible to implement in a various aspect in the range which does not deviate from the summary (for example, (1)-(5) shown below). In order to facilitate understanding, the drawings schematically show each component as a main component, and the thickness, length, number, etc. of each component illustrated are different from the actual for convenience of drawing creation. There is a case. The shapes, dimensions, and the like of the components shown in the above-described embodiment are merely examples and are not particularly limited, and various modifications can be made without departing from the configuration of the present invention.

  (1) As described with reference to FIG. 1, in the embodiment of the present invention, the metal pallet 100 includes the plurality of top plates 1, the plurality of legs 2, and the plurality of bottom plates 3; The present invention is not limited to this. The metal pallet 100 may be provided with at least one top plate and a plurality of legs 2. For example, the top plate may be in the form of one member. Specifically, the top plate may be in the form of one corrugated plate. Moreover, the metal pallet 100 may not have a bottom plate.

  (2) As described with reference to FIGS. 1 to 3, although the first corrugated sheet 211 has the three first convex portions 211 a and the two first concave portions 211 b, the present invention is not limited thereto. The first corrugated sheet may have at least one first protrusion or at least one first recess. For example, the first corrugated sheet may have one first protrusion and one first recess. Also, for example, the first corrugated sheet may have five first convex portions and four first concave portions. Moreover, although the 4th waveboard 11 has the 3rd 4th convex part 111 and the 2nd 4th recessed part 112 similarly to the 1st waveboard 211, this invention is not limited to this.

  (3) As described with reference to FIGS. 1 to 5, although the second wave plate 231 has two second convex portions 231 a and two second concave portions 231 b, the present invention is not limited thereto. The second corrugated sheet may have at least one second protrusion or at least one second recess. For example, the second corrugated sheet may have one second protrusion and one second recess. Also, for example, the second corrugated plate may have five second convex portions and four second concave portions. Moreover, although the 3rd wave plate 31 has the 2nd 3rd convex part 311 and the 3rd 3rd recessed part 312 similarly to the 2nd wave plate 231, this invention is not limited to this.

  (4) As described with reference to FIGS. 1 to 3, the cross section of the first convex portion 211 a is rectangular, but the present invention is not limited thereto. The first convex portion may have a convex shape in the positive direction (upward direction) of the Z axis. For example, the cross section of the first convex portion may be trapezoidal. Moreover, although the cross section of the 2nd recessed part 231b, the cross section of the 3rd recessed part 312, and the cross section of the 4th convex part 111 are rectangular shape similarly to the cross section of the 1st convex part 211a, this invention is not limited to this.

  (5) As described with reference to FIGS. 1 to 6, all the members constituting the metal pallet 100 are made of steel, but the present invention is not limited thereto. At least a part of the members constituting the metal pallet 100 may be made of metal. For example, at least a part of the members of the metal pallet 100 may be made of aluminum. Also, for example, at least a part of the members of the metal pallet 100 may be made of stainless steel.

  The invention is applicable to the field of metal pallets.

100 metal pallet 1 top plate 11 fourth corrugated plate 111 fourth convex portion 112 fourth concave portion 12 fourth reinforcing member 2 legs 21 first plate member 211 first corrugated plate 211 a first convex portion 211 b first concave portion 212 , 213 first reinforcing member 22 leg member 23 second plate member 231 second corrugated plate 231 a second convex portion 231 b second concave portion 232, 233 second reinforcing member 3 bottom plate 31 third corrugated plate 311 third convex portion 312 3 recessed part 32 third reinforcing member

Claims (10)

A top plate on which a load is placed;
And a plurality of legs supporting the top plate,
At least one leg of the plurality of legs supports the top plate, and includes a first plate-like member extending in a first direction,
The first plate member includes a first corrugated plate extending in the first direction, and at least one first reinforcing member that reinforces the first corrugated plate.
The first corrugated sheet has at least one first convex portion extending along the first direction, and at least one first concave portion extending along the first direction,
The first reinforcing member extends along the first direction, and is disposed in at least one of the first convex portion and the first concave portion.
The first reinforcing member is formed in a U-shape,
The first reinforcing member is
With two sides,
Having major surfaces in communication with the two sides;
The main surface contacts the first convex portion or the first concave portion,
At least one leg of the plurality of legs is
At least one leg member supporting the first plate member and arranged along the first direction;
And a second plate member fixed to the lower end of the leg member and extending in the first direction,
The second plate member includes a second corrugated plate, and at least one second reinforcing member that reinforces the second corrugated plate.
The second corrugated sheet has at least one second protrusion extending along the first direction and at least one second recess extending along the first direction,
The metal pallet, wherein the second reinforcing member is disposed between the second recess and the leg member.   The metal pallet according to claim 1, wherein the first reinforcing member is disposed along the lower surface of the first convex portion. The cross section of the first convex portion, Ru rectangular der, metal pallets according to claim 1 or claim 2.   The metal pallet according to any one of claims 1 to 3, wherein the first reinforcing member is fixed to the lower surface of the first convex portion.   The metal pallet according to any one of claims 1 to 4, further comprising a bottom plate fixed to the lower surface of the leg. The bottom plate includes at least one third corrugated plate extending in a second direction different from the first direction, and at least one third reinforcing member reinforcing the third corrugated plate.
The third corrugated sheet has at least one third convex portion extending along the second direction, and at least one third concave portion extending along the second direction,
The metal pallet according to claim 5, wherein the third reinforcing member is disposed between the third recess and the leg. A top plate on which a load is placed;
And a plurality of legs supporting the top plate,
At least one leg of the plurality of legs supports the top plate, and includes a first plate-like member extending in a first direction,
The first plate member includes a first corrugated plate extending in the first direction, and at least one first reinforcing member that reinforces the first corrugated plate.
The first corrugated sheet has at least one first convex portion extending along the first direction, and at least one first concave portion extending along the first direction,
The first reinforcing member extends along the first direction, and is disposed in at least one of the first convex portion and the first concave portion.
The first reinforcing member is formed in a U-shape,
The first reinforcing member is
With two sides,
Having major surfaces in communication with the two sides;
The main surface contacts the first convex portion or the first concave portion,
The top plate includes at least one fourth wave plate extending in a third direction different from the first direction, and at least one fourth reinforcement member reinforcing the fourth wave plate.
The fourth corrugated sheet has at least one fourth convex portion extending along the third direction, and at least one fourth concave portion extending along the third direction,
The metal pallet, wherein the fourth reinforcing member is disposed between the fourth convex portion and the first plate-like member. A method of manufacturing a metal pallet, comprising: a top plate on which a load is placed; and a plurality of legs supporting the top plate,
At least one leg of the plurality of legs supports the top plate, and includes a first plate-like member extending in a first direction,
The first plate member includes a first corrugated plate extending in the first direction, and at least one first reinforcing member that reinforces the first corrugated plate.
The first corrugated sheet has at least one first convex portion extending along the first direction, and at least one first concave portion extending along the first direction,
A first disposing step of disposing the first reinforcing member in at least one of the first convex portion and the first concave portion;
Fixing the first reinforcing member to at least one of the first protrusion and the first recess; and
The first reinforcing member extends in the first direction,
The first reinforcing member is formed in a U-shape,
The first reinforcing member is
With two sides,
Having major surfaces in communication with the two sides;
The main surface contacts the first convex portion or the first concave portion,
The legs are
At least one leg member supporting the first plate member and arranged along the first direction;
And a second plate member fixed to the lower end of the leg member and extending in the first direction,
The second plate member includes a second corrugated plate extending in the first direction, and at least one second reinforcing member that reinforces the second corrugated plate.
The second corrugated sheet has at least one second protrusion extending along the first direction and at least one second recess extending along the first direction,
A second disposing step of disposing the second reinforcing member between the second recess and the leg member;
And a second fixing step of fixing the second reinforcing member to the second recess. The metal pallet further comprises a bottom plate fixed to the lower surface of the leg;
The bottom plate includes at least one third corrugated plate extending in a second direction different from the first direction, and at least one third reinforcing member reinforcing the third corrugated plate.
The third corrugated sheet has at least one third convex portion extending along the second direction, and at least one third concave portion extending along the second direction,
A third disposing step of disposing the third reinforcing member between the third recess and the leg;
The method according to claim 8, further comprising: a third fixing step of fixing the third reinforcing member to the third recess. The top plate includes at least one fourth wave plate extending in a third direction different from the first direction, and at least one fourth reinforcement member reinforcing the fourth wave plate.
The fourth corrugated sheet has at least one fourth convex portion extending in the third direction, and at least one fourth concave portion extending in the third direction,
A fourth disposing step of disposing the fourth reinforcing member between the fourth convex portion and the leg;
The manufacturing method of the metal pallet of Claim 8 or 9 further including the 4th fixing process of fixing the said 4th reinforcement member to the said 4th convex part.

Images