JP2013129438A - Pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pallet which is light in weight, high in manufacturing efficiency, and can replace a constituent member.SOLUTION: In the pallet, a plurality of ridges 27 are arranged in parallel in the longitudinal direction of a deck material at a surface of the deck material 21, a longitudinal girder 15 has a deck material mounting wall 29a which mounts the deck material 21 and a deck material pressing part 29b which faces the deck material surface, a plurality of ridges 33 in a direction intersecting the ridges 27 of the deck material are arranged in parallel at a counter surface to the deck material surface in the deck material pressing part 29b, the ridges 27 of the deck material 21 and the ridges 33 of the longitudinal girder 15 are crushed and friction-welded by making the deck material pressing part 29b of the longitudinal girder 15 pressure-contact with the end of the deck material 21, and the deck material 21 and the longitudinal girder 15 are joined by caulking and joining by forming caulking holes 69 at the deck material mounting wall 29a of the longitudinal girder and the deck material 21.

Description

  The present invention relates to a pallet that can be moved by a forklift or the like while an article is placed thereon.

Non-Patent Document 1 discloses a pallet manufactured by assembling a girder and a deck material.
Although there is no direct description in Non-Patent Document 1, when manufacturing a conventional pallet, the deck material and the girder are joined by welding.

Sankyo Material Aluminum Palette Catalog Sankyo Material Co., Ltd. SG. 09.08

However, when the girders and the deck materials are welded, there is a problem that the weight of the pallet becomes heavy because the girders and the deck materials require a predetermined thickness. In addition, since welding requires a predetermined time and it is necessary to perform welding after positioning each component member, there is a problem that the manufacturing efficiency is poor.
In addition, since the members are joined by welding, there is a problem that the service life is short because components such as deck materials cannot be replaced.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a pallet that is lightweight, has high manufacturing efficiency, and allows replacement of constituent members.

  The invention according to claim 1 includes a deck material and a girder arranged at an end portion in the longitudinal direction of the deck material, and the deck material has a plurality of ridges provided in parallel on the surface in the longitudinal direction of the deck material, The girder is a deck material placement portion for placing the deck material, an end surface facing portion that is continuous with the deck material placement portion and facing the end surface of the deck material, and is continuous with the end surface facing portion and facing the deck material surface. A plurality of ridges in a direction crossing the ridges of the deck material are provided in parallel to the surface facing the deck material surface, and the surface facing portion of the girder and the deck material The deck material and the ridge of the girder are crushed by press-contacting the edges, and the deck material is crushed and frictionally joined, and the deck material mounting part of the girder and the mounting surface part of the deck material are caulked and joined. It is a pallet characterized by joining a spar and a girder.

According to the first aspect of the present invention, the deck material and the girder are friction-joined by crushing each other at the position where the deck material ridge and the beam ridge intersect, and the deck material mounting portion and deck of the girder The mounting surface part of the material is caulked and the deck material and the girder are not joined by welding, so the time required for welding can be omitted and the girder and deck material can be fixed while positioning. In addition to being high, the wall thickness required for welding is not required, so the weight can be reduced.
Since the girder and the deck material are not joined by welding, the girder and the deck material can be exchanged by releasing the frictional and caulking joints between the girder and the deck material.
The joining of the girder and the deck material is, for example, good in manufacturing efficiency because the girder and the longitudinal end of the deck material can be pressed together at the same time with upper and lower molds to perform friction welding and caulking joining.
The ridges on the surface of the deck material can be used for preventing slippage of articles placed on the surface of the deck material.

It is a figure of the pallet concerning embodiment of this invention, (a) is a top view, (b) It is a front view, (c) is a side view. It is a pallet figure concerning this Embodiment, (a) is AA sectional drawing shown to Fig.1 (a), (b) is BB sectional drawing shown to Fig.1 (a). It is a perspective view which shows the corner part and cross beam intermediate part of the pallet concerning embodiment of this invention. It is a perspective view which shows the assembly | attachment of the stringer and the deck material in the manufacturing process of the pallet concerning embodiment of this invention. It is a figure of a deck material, (a) is a perspective view of the deck material shown in FIG. 4, (b) is EE sectional drawing of the A section shown in (a), (c) is (a). It is sectional drawing of the B section shown to (4), (d) is sectional drawing of the C section shown to (a). It is a perspective view which shows the joining process of the stringer and deck material in the manufacturing process of the pallet concerning embodiment of this invention. It is a perspective view of the deck assembly in the manufacturing process of the pallet concerning embodiment of this invention. It is a perspective view which shows arrangement | positioning of each bundle used for the pallet concerning embodiment of this invention. It is a perspective view which shows the joining process of the deck assembly and corner bundle used for the pallet concerning embodiment of this invention. It is a perspective view which shows the joining process of the deck assembly used for the pallet concerning embodiment of this invention, and a stringer bundle. It is a perspective view which shows the joining process of the deck assembly used for the pallet concerning embodiment of this invention, a cross beam, a middle beam, and a cross beam bundle. It is a perspective view which shows the joining process of the deck assembly used for the pallet concerning embodiment of this invention, a middle girder, and a middle girder bundle. It is a figure which shows the manufacturing process of the pallet concerning embodiment of this invention, (a) is a perspective view which shows the assembly | attachment of a deck assembly, a corner bundle, a cross beam, and a cross beam bundle, (b) is It is FF sectional drawing shown to (a).

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
The pallet 1 according to the present embodiment is one in which an article is placed on a deck material and moved as it is by a forklift or the like, and the pallet 1 is a surface side deck body as shown in FIGS. 3, a back side deck body 5, a corner bundle 7 disposed between these deck bodies 3, 5, a vertical beam bundle 9, a horizontal beam bundle 11, and a middle beam bundle 13. Since the front side deck body 3 and the back side deck body 5 have the same configuration, only the front side deck body 3 will be described in the following description.
The front side deck body 3 is composed of a deck material 21, a vertical girder (girder) 15, a horizontal girder 17, and a middle girder 19. The deck material 21 is long, and a plurality of the deck materials 21 are arranged in parallel in the left-right direction at intervals. Each deck material 21 has both longitudinal end portions 21 a (small ends) attached to the vertical beam 15. The side part 21b along the longitudinal direction of the deck material 21 on the rightmost side is attached to the right lateral beam 17 and the side part 21b along the longitudinal direction of the leftmost deck material 21 is attached to the left lateral beam 17 is there.

As shown in FIG. 4, the deck material 21 is provided with a placement surface portion 23 and an attachment surface portion 25, and the placement surface portion 23 is a placement surface on which a load is placed on the pallet 1. The mounting surface portion 23 is formed so as to protrude above the mounting surface portion 25.
As shown in FIG. 5A, the placement surface portion 23 of the deck material 21 includes a left side portion B, a right side portion C, and an intermediate portion A located in the middle of the left and right, and each portion B of the placement surface portion 23. , C, and A, as shown in FIGS. 5B to 5D, a ridge 27 having a right-angled triangular cross section is formed along the longitudinal direction. The right triangle of the ridge 27 has a ratio of the lengths of the two sides a and b forming the right angle to the hypotenuse c of 3: 4: 5, and the upper end has an acute angle of 30 degrees.
As shown in FIG. 5 (c), the ridge 27 of the left side B has the oblique side c directed to the right side, and the ridge 27 of the right side C has the oblique side c as shown in FIG. 5 (d). They are directed to the left and have their hypotenuses c opposite to each other. In the intermediate portion A, the hypotenuse c is directed to the left side and the hypotenuse c is directed to the right in the right portion. That is, the ridges 27 whose cross section is a right triangle have the hypotenuse c alternately opposite from the left side to the right side as the entire mounting surface portion 23. In the drawings other than FIGS. 4, 5, and 6, the ridges 27 on the placement surface of the deck material 21 are omitted.

As shown in FIG. 1, the vertical girder 15 and the horizontal girder 17 are provided on four sides, and the vertical girder 15 and the horizontal girder 17 form a corner portion 4. As shown in FIG. 4, the stringer 15 is formed with a deck material mounting groove 29 opened toward the inner peripheral side and a bundle mounting groove 31 opened downward. The deck material mounting groove 29 has an upper surface of the deck material placement wall (deck material placement portion) 29a, a deck material pressing wall (surface facing portion) 29b, and a facing wall (end surface) facing the longitudinal end of the deck material 21. The bundle mounting groove 31 is formed by the lower surface of the deck material placement wall 29a, the inner peripheral side wall 31a, and the outer peripheral side wall 31b, and the deck material placement wall 29a is It is a common groove wall.
4 and 6, the deck material mounting groove 29 is formed with a plurality of parallel projections 33 along the longitudinal direction of the stringer 15 on the groove side surface of the deck material pressing wall 29b. ing. The ridge 33 is formed in a direction orthogonal to the ridge 27 of the deck material 21.
A positioning projection 35 is formed on the opposing wall 29c of the deck material mounting groove 29 so as to protrude toward the opening side of the deck material mounting groove 29 at a position corresponding to between the adjacent deck materials 21 and 21. The positioning protrusion 35 is formed by pressing the opposing wall 29c from the outer peripheral side toward the inner peripheral side.

As shown in FIG. 9, the cross beam 17 has substantially the same shape as the vertical beam 15 and is formed with a deck material mounting groove 29 and a bundle mounting groove 31, but the deck material pressing wall 29a has a protruding line. 33 and the positioning protrusion 35 are not formed. Further, as shown in FIG. 13A, a forklift claw insertion portion 37 is formed in the cross beam 17 at a position corresponding to between the corner bundle 7 and the cross beam bundle 11. As shown in FIG. 13 (b), the claw insertion portion 37 is formed by bending the inner peripheral side wall 31a and the outer peripheral side wall 31b of the bundle mounting groove 31 toward the deck material placement wall (groove bottom) 29a side. The top surface of the claw insertion portion 37 has a double structure of a deck material placement wall 29a, a bent inner peripheral side wall 31a and an outer peripheral side wall 31b.
Further, at both ends 17a and 17a in the longitudinal direction of the cross beam 17, the deck material mounting wall 29a, the deck material pressing wall 29b and the inner peripheral side wall 31a are cut out, and formed by the opposing wall 29c and the outer peripheral side wall 31b. The surface is in contact with the end 15a of the stringer 15.

  As shown in FIGS. 1 and 2, the middle girder 19 is disposed in the middle in the longitudinal direction of the deck material 21, and the deck material 21 is placed on the upper surface. As shown in FIG. 11, a bundle attachment groove 38 that opens downward is formed in the middle beam 19.

As shown in FIGS. 8 and 9, the corner bundle 7 is an L-shaped bundle member 8 having a substantially L shape in plan view, and the L-shaped bundle member 8 is provided with a reinforcing wall 39 at the corner of the L shape. The side wall 8a and the other side wall 8b are connected. A tapping hole 41 is formed at the leading end of each of the L-shaped one side wall 8a and the other side wall 8b.
As shown in FIG. 9, one side wall 8 a of the L-shaped bundle member 8 is positioned so as to enter the bundle mounting groove 31 of the vertical beam 9, and the other side wall 8 b enters the bundle mounting groove 31 of the cross beam 11.
The vertical girder 15 and the deck material 21 are fixed to the tapping hole 41 of the one side wall 8a of the L-shaped bundle 8 by screws 43, and the horizontal girder 17 and the deck material 21 are fixed to the tapping hole 41 of the other side wall 8b. Is fixed by a screw 45.

  As shown in FIG. 1, the stringer bundle 9 is provided at an intermediate portion in the longitudinal direction of the stringer 15, and is a U-shaped bundle member 10 having a substantially U-shape in plan view as shown in FIG. 10. The intermediate wall 10a has opposing walls 10b provided on both sides of the intermediate wall 10a, and tapping holes 41 are formed in the opposing walls 10b. The upper end portion of the U-shaped bundle member 10 enters the bundle attachment groove 31 of the stringer 15, and the deck material placement wall 29 a of the stringer 15 and the attachment surface portion 25 of the deck member 21 are fixed to the tapping hole 41 by screws 47. It is.

  As shown in FIG. 1 and FIG. 2, the cross beam bundle 11 is provided at the middle portion in the longitudinal direction of the cross beam 17 and at the longitudinal end portion of the middle beam 19. As shown in FIG. The two bundles of the same type as the L-shaped bundle 8 used for the corner bundle 7 are combined. In the cross beam bundle 11, one side walls 8a of two L-shaped bundle members 8 are back to back. One side wall 8a of the L-shaped bundle member 8 enters the bundle mounting groove 38 of the middle beam 19 at the end of the middle beam 19, and the tapping hole 41 formed at the end of the one wall 8a The deck material 21 is fixed with screws 49. The other side walls 8b, 8b of the L-shaped bundle members 8, 8 enter the bundle mounting groove 31 of the cross beam 17, and the cross beam 17 and the deck member 21 are fixed to the tapping holes 41 of the other side walls 8b, 8b by screws 51. Yes.

  As shown in FIGS. 1 and 12, the middle girder bundle 13 is arranged in the middle of the middle girder 19 in the longitudinal direction, and as shown in FIG. The U-shaped intermediate wall 10a is provided back to back. The upper end portion of the middle beam 13 is inserted into the bundle mounting groove 38 of the middle beam 19, and the middle beam 19 and the deck material 21 are fixed to the total four tapping holes 41 by screws 53.

As shown in FIG. 3, in each corner portion 4 of the pallet 1, the contact portion 55 between the end of the vertical beam 15 and the end of the horizontal beam 17 is welded and stopped. The abutting portion 57 of the L-shaped bundle members 8 and 8 and the abutting portion 59 of the cross beam bundle 11 and the cross beam 17 are welded and stopped.
The vertical girder 15, the horizontal girder 17, the middle girder 19, the deck material 21, the L-shaped bundle material 8, and the U-shaped bundle material 10 are each made of an aluminum shape.

Next, a method for manufacturing the pallet 1 according to the present embodiment will be described.
First, the deck material assembly 71 shown in FIG. 7 is assembled. As shown in FIG. 4, the end 21 a in the longitudinal direction of each deck member 21 is inserted into the deck member mounting groove 29 of the stringer 15. The deck material 21 is inserted by positioning with the positioning protrusion 35.
After each deck member 21 is inserted into the vertical beam 15, the vertical beam 15 with the deck material 21 mounted is disposed between the lower mold 61 and the upper mold 63 as shown in FIG. 6. The lower mold 61 and the upper mold 63 are each provided over the entire longitudinal direction of the stringer 15. The lower die 61 is formed with a punching die 65 at a predetermined position, the upper die 63 is formed with a punch 67 at a position corresponding to the die 65, and the lower die 61 is attached to the vertical girder 15. Caulking holes (caulking joints) 69 are simultaneously formed in the deck materials 21 and the vertical girders 15 by placing the lower mold 61 and the upper mold 63 in a direction in which the lower mold 61 and the upper mold 63 are aligned with each other. . The upper die 63 is formed with a pressing portion 64 at a position corresponding to the deck material pressing portion 29 b of the stringer 15, and the pressing portion 64 is simultaneously pressed when the lower die 61 and the upper die 63 are pressed. Presses the deck 21 and the deck material pressing portion 29b. As a result, as shown in FIG. 4, the ridge 33 of the deck material pressing portion 29 b and the ridge 27 of the deck material 21 are crushed and frictionally joined at a position where they intersect each other.
In this way, at both ends in the longitudinal direction of the deck material 21, the stringer 15 and the deck material 21 are caulked and frictionally joined by the lower mold 61 and the upper mold 63, and the deck shown in FIG. A material assembly 71 is formed.

Next, as shown in FIG. 8, the corner bundle 7, the vertical beam bundle 9, the horizontal beam bundle 11, and the middle beam bundle 13 are arranged at predetermined positions. The horizontal girder bundle 11 uses two of the same type as the L-shaped bundle material 8 used for the corner bundle 7, and the side walls 8a and 8a are arranged back to back, and the middle girder bundle 13 is a vertical girder bundle. The U-shaped intermediate wall 10a is placed back-to-back with each other using two of the same type of the U-shaped bundle member 10 used in 9.
After that, as shown in FIG. 11, the middle beam 19 is arranged between the opposite beam bundles 11, 11, and each of the beam beams 11 and the beam 13 is inserted into the bundle attachment groove 38 of the middle beam 19. Later, a deck assembly 71 (see FIG. 7) is arranged on the middle beam 19, the corner bundle 7, the vertical beam bundle 9, the horizontal beam bundle 11, and the middle beam bundle 13.
Next, as shown in FIG. 11, the side portions 21b of the deck material 21 on the left and right sides of the deck assembly 71 are inserted into the deck material mounting grooves 29 of the cross beam 17, and the cross beam 17 is attached. The bundles 7, 9, 11, and 13 are screwed as follows.

As shown in FIG. 9, screwing in the corner bundle 7 is performed by inserting one side wall 8a of the L-shaped bundle material 8 into the bundle attachment groove 31 of the vertical girder 15, and connecting the vertical girder 15 and the deck material 21 to the one side wall 8a. The L-shaped bundle member 8 is fixed to the tapping hole 41 with a screw 43, the other side wall 8b of the L-shaped bundle member 8 is inserted into the bundle attachment groove 31 of the cross beam 17, and the cross beam 17 and the deck member 21 are put into the tapping hole 41 of the other side wall 8b. Secure with screws 45.
As shown in FIG. 10, screwing in the stringer bundle 9 is provided on the opposing walls 10 b and 10 b having a U-shape in plan view by inserting the upper end portion of the U-shaped bundle member 10 into the bundle mounting groove 31 of the stringer 15. Further, the deck material 21 and the stringer 15 are fixed to the tapping holes 41, 41 with screws 47, 47, respectively.
As shown in FIG. 11, the horizontal girder bundle 11 is screwed in such a manner that one side wall 8 a, 8 a with the L-shaped bundle material 8 back-to-back enters the bundle attachment groove 38 at the longitudinal end of the middle girder 19. The middle girder 19 and the deck material 21 are fixed to the tapping holes 41, 41 on one side wall 8a, 8a of the beam bundle 11 with screws 49, and the upper end portions of the other side walls 8b, 8b are formed in the bundle mounting groove 31 of the cross beam 17. The cross girder 17 and the deck material 21 are fixed with screws 51, 51.
In addition, a slit is formed in the inner peripheral side wall 31a of the cross beam 17 at a position corresponding to the one side wall 8a, 8a that is back to back of the cross beam bundle 11, so that the one side wall 8a, 8a enters. Yes.
As shown in FIG. 12, screwing in the middle girder bundle 13 is performed by causing the upper ends of the back-to-back U-shaped bundle members 10, 10 to enter the bundle attachment groove 38 of the middle girder 19, and the deck material 21 and the middle girder 19. Are fixed with screws 53.

After assembling the surface side deck body 3 in each bundle 7, 9, 11, 13 as described above, it is turned upside down so that the top of each bundle 7, 9, 11, 13 is the same as the surface side deck body 3. Assemble the back side deck body 5.
And as shown in FIG. 3, the contact part 55 of the end of the vertical beam 15 and the end of the horizontal beam 17 is welded, and the back-to-back location 57 of the two L-shaped bundle members 8 and 8 of the horizontal beam bundle 11 and The contact part 59 with the cross beam 17 is welded.

Next, the function and effect of the pallet 1 according to the present embodiment will be described. As shown in FIG. 6, by pressing the deck material pressing portion 29 b of the stringer 15 and the end of the deck material 21, the ridge 27 of the deck material 21 and the ridge 33 of the stringer (girder) 15 are formed. The deck material placement wall (deck material placement portion) 29a of the stringer 15 and the mounting surface portion (placement surface portion) 25 of the deck material 21 are caulked, and the caulking holes (caulking joining) are performed. Part) 69 is formed, and the deck material 21 and the string 17 are joined, and the deck material 21 and the string 15 are not joined by welding. Since the deck material 21 can be fixed while being positioned, the manufacturing efficiency is high and the wall thickness required for welding is not required, so that the weight can be reduced.
Since the stringer 15 and the deck material 21 are not joined by welding, the frictional joining between the stringer 15 and the deck material 21 and the caulking joint of the caulking hole 69 are released, whereby the stringer 15 and the deck material 21 Exchange is possible.
The stringer 15 and the deck material 21 are joined by pressing the stringer 15 and the longitudinal end of the deck material 21 at a time with the lower mold 61 and the upper mold 63 to perform friction welding and caulking joining. Therefore, manufacturing efficiency is good.
The ridges 27 of the deck material 12 can be used for preventing slippage of articles placed on the surface of the deck material.

Furthermore, according to the pallet 1 according to the present embodiment, in the vertical girder 15 and the horizontal girder 17 arranged in the four circumferences, each corner bundle 7, vertical girder bundle 9, and horizontal girder bundle 11 together with the deck material 21 are screws 43, 45. 47, 49, and these are not joined by welding, so that the time required for welding can be omitted and positioning can be performed while positioning each of these constituent members. Since the required wall thickness is not required, the weight can be reduced.
For example, the manufacturing time of the pallet was 1/10 compared with the manufacturing by the conventional welding, and 1/3 compared with the manufacturing by the rivet.
Further, by removing the screws 43, 45, 47, 49, 51, 53, the deck material 21, the vertical beam 15, the horizontal beam 17, and the bundle materials 7, 9, 11 constituting the pallet 1 can be respectively replaced. it can. Therefore, since these constituent members can be arbitrarily replaced when they are deteriorated or damaged, the service life of the pallet 1 can be extended.
Since the middle beam 19 receives the intermediate portion in the longitudinal direction of the deck material 21, the strength of the deck material 21 can be increased.
Since the L-shaped bundle material 8 is used for the corner bundle 7, and the three members of the vertical girder 15, the horizontal girder 17, and the deck material 21 are fixed together at one place, work efficiency is good.
Since the cross beam 17, the middle beam 19, and the deck material 21 are fixed together in the cross beam bundle 11, work efficiency is high.
Since the cross beam bundle 11 can be used by combining two bundles of the same type as the L-shaped bundle member 8, the number of parts can be reduced.
Since the U-shaped bundle material 10 is used for the stringer bundle 9, it is stable and can use less material than a cylindrical one.
Since the U-shaped bundle material 10 is used for the vertical girder bundle 9, and the middle girder bundle 13 uses two of the same type as the U-shaped bundle material 10 used in the vertical girder bundle 9, Since the same type of beam bundle 9 and horizontal beam bundle 13 can be used, the number of parts can be reduced.

When the pallet 1 is transported, the claw of the forklift is inserted into the claw insertion portion 37 of the cross beam 17 so that the cross beam 17 is subjected to the impact of the claw. Since the peripheral side wall 31a and the outer peripheral side wall 31b are folded and stacked on the deck material mounting wall 29a side, the cross beam 17 can be prevented from being damaged or broken by the impact of the claws. Further, since only the inner peripheral side wall 31a and the outer peripheral side wall 31b of the cross beam 17 are bent and processed, it is not necessary to attach a separate member as compared with the case of attaching a rubber material or the like. 1 can be easily manufactured.
As shown in FIG. 5, the protrusion 27 formed on the surface of the deck material 21 has a right-angled triangle cross section, and the hypotenuse c of the right-angled triangle is directed in a direction perpendicular to the longitudinal direction of the deck material 21. Since the upper end of the ridge 27 has an acute angle, the upper end of the ridge 27 can be easily applied to the lower surface of the article placed on the pallet 1, and the anti-slip property of the article can be improved.
Since the ridges 27 are opposite in the direction of the hypotenuse c of the right triangle on the left side (one side) and the right side (the other side), even if the slip prevention property varies depending on the direction of the hypotenuse c, the entire deck surface is uniform. In addition, high slip resistance can be obtained.
Since the ridge 27 has a right-angled triangular cross section and has a side b projecting vertically from the deck material 21, for example, when both sides b and c projecting from the deck material 21 are inclined sides like an isosceles triangle. In comparison, the hanging of the article placed on the surface of the deck material can be increased, and the prevention of slipping of the article can be further enhanced.

In the corner portion 4 of the pallet 1, the end of the vertical beam 15 and the end of the horizontal beam 17 are welded, so that it is possible to prevent an operator or the like from being caught on the cut end of the corner portion 4 to be damaged. Further, since the vertical girder 15 and the horizontal girder 17 of the front side deck body 3 and the back side deck body 5 can be welded and fixed in total in the same work posture, workability is good.
As shown in FIG. 3, in the cross beam bundle 11, the two parts of the same type as the L-shaped bundle member 8 are welded and fixed to each other so that the L-shaped bundle member 8 is separated. Can be prevented.
Since the contact portion between the L-shaped bundle member 8 and the cross beam 17 is welded, the joining strength between the cross beam bundle 11 and the cross beam 17 can be increased. Moreover, since the cross beam bundle 11 and the cross beam 17 can be fixed, it is possible to increase the bonding strength and to make the total four members of the two L-shaped bundle members 8, 8 and the upper and lower cross beams 17, 17 have the same working posture. Workability is good because it can be fixed by welding.
Furthermore, since the vertical girder 15 and the horizontal girder 17 and the deck material 7 are not welded, the aluminum shapes coated with the girders 15, 17, 19 and the deck material 21 can be used. When a material is used, the pallet 1 is hardly damaged and oxidation can be prevented.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
For example, the pallet 1 may be provided with only the front side deck body 3 only on the upper side of each bundle 7, 9, 11, 13 without providing the back side deck body 5.
Welding of the abutting portion 55 of the corner portion, welding of the abutting portion 57 of the back-to-back L-shaped bundles 8 and 8 in the cross beam bundle 11, and welding of the abutting portion 59 of the cross beam bundle 11 and the cross beam 17. It is not necessary.

1 Palette 15 Vertical digit (digit)
21 Deck material 21a Edge part of deck material 25 Mounting surface part (mounting surface part)
27 Convex (Deck Material Convex)
29a Deck material placement wall (Deck material placement part)
29b Surface facing part (deck material presser part)
29c Opposing part (end face facing part)
33 Projections (Projections on the deck material presser)
69 Caulking holes (caulking joints)

Claims (1)

  It is equipped with a deck material and a girder arranged at the end of the deck material in the longitudinal direction. The deck material has a plurality of ridges parallel to the longitudinal direction of the deck material on the surface, and the girder is a deck on which the deck material is placed. A material placement portion, an end face facing portion that is continuous with the deck material placement portion and faces the end surface of the deck material, and a surface facing portion that is continuous with the end face facing portion and faces the deck material surface, The surface facing part is provided with a plurality of ridges in parallel to the deck material surface on the surface facing the deck material surface, and the deck by pressing the surface facing part of the beam and the edge of the deck material The ridges of the material and the ridges of the girder are crushed and friction bonded, and the deck material mounting part of the girder and the mounting surface part of the deck material are caulked and bonded, and the deck material and the girder are bonded. Pallet characterized by.

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