JP2003034330A - Transportation pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent sideway displacement of load, under the condition of making nest-stacking possible, by securing enough upward protruding length of an upper rib and rigidity thereof. SOLUTION: At the outer periphery part of a deck portion 1, a rib 6 that protrudes upward and downward is provided, while an upper rib 6a protruding upward from the upper surface of the deck portion 1 is so formed as to be thicker-walled than a lower rib 6b protruding downward from the lower surface of the deck portion 1. The tip end of a reinforcing rib 7 that is integrally provided on the lower surface of the deck 1 in vertical direction is integrally provided in communication with the lower rib 6b. The protruding length of the upper rib 6a in upward direction is made longer than the protruding length of the lower rib 6b in downward direction, while the sum of the protruding length of the upper rib 6a in upward direction and the protruding length of the lower rib 6b in downward direction is made nearly equal to the nesting height of upper and lower pallets 5 in a state of being nest-stacked with a protruding portion 3 of a leg part of the upper pallet 5 being engaged in a recess 2 of a leg part 4 of the lower pallet 5.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet-shaped transport pallet called a skid pallet. 2. Description of the Related Art A sheet-shaped transport pallet conventionally called a skid pallet is disclosed in JP-A-8-140263.
An official gazette is known. As shown in FIG. 10, the projection 3 has a recessed portion 2 having an upper surface opened upward and a lower surface capable of being fitted into the recessed portion 2 on a rectangular quadrangular plate-like deck portion 1, as shown in FIG. 10. As shown in FIG. 10, the protrusions of the empty upper pallet leg 4 are inserted into the concave portions 2 of the empty lower pallet leg 4 as shown in FIG. 10. The nesting stacking in which the portion 3 is fitted can be performed so that the bulk when stacked in multiple stages in an empty state can be reduced. In the above-mentioned Japanese Patent Laid-Open Publication No. Hei 8-140263, ribs 5a and 5b are provided on the outer peripheral edge of the deck portion 1 so as to protrude in the vertical direction, and the mounted object placed on the upper surface of the deck portion 1 by the upper rib 5a. To prevent the mounted object from tipping over, and the lower ribs 5b reinforce the outer peripheral portion of the deck portion 1. However, in the above conventional example, as shown in FIG. 10, the upper rib 5a and the lower rib 5b have the same thickness, and the length of the upper rib 5a protruding upward is equal to that of the lower rib 5b. Not only is it much shorter than the downwardly protruding length, but also the sum of the upwardly protruding length of the upper rib 5a and the downwardly protruding length of the lower rib 5b is in the recess 2 of the leg 4 of the lower pallet. It was much shorter than the nesting height of the upper and lower pallets in the nesting stacking state in which the projections 3 of the pallet legs 4 were fitted. That is, in the above conventional example, the upper rib 5a
Because the projecting length is short, it is not possible to sufficiently prevent the load from shifting in the horizontal direction when placing and transporting the article on the upper surface of the deck section 1. In particular, the article is placed in a cardboard box. In such a case, if the corner of the cardboard box is concave or the protrusion length of the upper rib 5a is short, there is a problem that the upper rib 5a easily gets over and falls down. Further, the lower rib 5b is provided on the entire outer periphery of the deck portion 1 and the distal end of the reinforcing rib 7 which is integrally suspended from the lower surface of the deck portion 1 is integrally provided with the lower rib 5b, so that the lower rib 5b is thick. Although the rigidity can be ensured even if the thickness is thin, the upper rib 5a having the same thickness as the lower rib 5b.
Is not provided only on all or a part of the outer periphery of the deck portion 1 other than the portion corresponding to the fork insertion portion, and is not reinforced by the reinforcing ribs, so that sufficient rigidity cannot be secured. There is a possibility that the luggage placed on the upper surface of the unit 1 may be laterally displaced and damaged when hitting the upper rib 5a, and the luggage may be laterally displaced and fall down. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is intended to solve the above-mentioned problems in a pallet capable of nesting. It is an object of the present invention to provide a transport pallet capable of ensuring the length of the upward projection of the upper rib and the rigidity thereof and reliably preventing the lateral displacement of the load. A transport pallet according to the present invention has a shape in which a concave portion 2 having an upper surface opened upward and a lower surface can be fitted into the concave portion 2 in a rectangular plate-like deck portion 1. Ribs protruding vertically on the outer peripheral edge of the deck portion 1 in a pallet 5 provided with a plurality of legs 4 whose side walls are inclined so as to become wider toward the upper opening side which has become the projecting portion 3 projecting downward. 6, upper ribs 6a protruding upward from the upper surface of the deck portion 1 are formed thicker than lower ribs 6b protruding downward from the lower surface of the deck portion 1, and reinforcing ribs integrally suspended from the lower surface of the deck portion 1 7 is integrally connected to the lower rib 6b, and the length of the upper rib 6a projecting upward is set to the lower rib 6b.
Of the upper rib 6a.
The sum of the upwardly protruding length of the upper pallet 5 and the downwardly protruding length of the lower rib 6b is set to the nesting state in which the projection 3 of the leg 4 of the upper pallet 5 is fitted into the recess 2 of the leg 4 of the lower pallet 5. The nest height of the upper and lower pallets 5 is substantially the same as that of the pallet 5. With such a configuration, the length of the upper rib 6a protruding upward can be made as long as possible under the condition that the pallet 5 can be nested vertically, and the object placed on the upper surface of the deck portion 1 Side slip can be reliably prevented, and the upper rib 6a is made thicker than the lower rib 6b, so that the upper rib 6
Even if a is not reinforced by the reinforcing ribs 7, the rigidity can be increased, and there is no breakage due to the impact of the mounted object in the event of side slip, and the reinforcing ribs 7 are integrally connected to the lower rib 6 b. By doing so, the strength does not decrease even if the thickness is smaller than the upper rib 6a. [0007] The present invention will be described in detail below with reference to embodiments shown in the accompanying drawings. FIGS. 3 to 8 show a pallet 5 of the present invention. The pallet 5 is a sheet-shaped pallet called a skid pallet, and is formed by integral molding of a synthetic resin. In addition, the pallet 5 of the present invention has a concave portion 2 having an upper surface opening upward and a lower surface protruding downward from a shape that can be fitted into the concave portion 2 on a square plate-like deck portion 1 having a square shape or a rectangular shape in plan view. Protruding part 3
A plurality of legs 4 having inclined side walls 8 are provided so as to be wider toward the upper opening side, and a fork insertion portion 9 is provided between the legs 4. In the embodiment shown in the accompanying drawings, the plurality of legs 4 are provided symmetrically with respect to a line that bisects the deck 1 to the left and right in the drawing. A rib 6 is provided on the outer peripheral edge of the deck 1 so as to project vertically. The rib 6 is composed of an upper rib 6a projecting upward from the outer peripheral edge of the upper surface of the deck portion 1 and a lower rib 6b projecting downward from the outer peripheral edge of the lower surface of the deck portion 1. The lower rib 6b is provided on the entire periphery of the outer periphery of the deck portion 1 and is provided on all or only a portion of the outer periphery of the portion 1 other than the portion corresponding to the fork insertion portion. The upper rib 6a is formed thicker than the lower rib 6b. Also, a large number of reinforcing ribs 7 are integrally provided vertically on the lower surface of the deck portion 1 in the front-rear direction and the left-right direction, and the front end of the reinforcing rib 7 is provided at right angles to the lower rib 6b. . The lower rib 6b side end of the reinforcing rib 7 has an inclined edge whose lower end is inclined upward toward the lower rib 6b. FIGS. 1, 2 and 9 show the pallet 5 in an empty state.
As shown in FIG. 9, nesting stacking is possible in which the projections 3 of the legs 4 of the upper pallet 5 are fitted into the recesses 2 of the legs 4 of the lower pallet 5. It is stored and transported by nesting several dozen stages like this, so that storage,
The bulk during transportation can be reduced. According to the present invention, in which the pallets 5 can be nested and stacked, the length of the upper rib 6a protruding upward is longer than the length of the lower rib 6b protruding downward. At the same time, the total of the upwardly protruding length of the upper rib 6a and the downwardly protruding length of the lower rib 6b is set in the recess 2 of the leg 4 of the lower pallet 5 by the projection 3 of the leg 4 of the upper pallet 5. The height is almost the same as the nesting height of the upper and lower pallets 5 in the inserted nesting pile state. As an example, when the nesting height of the upper and lower pallets 5 in the nesting stacking state indicated by A in FIG. 1 is 35 mm, the upward protruding length of the upper rib 6a indicated by B in FIG. The length of the downward projection of the lower rib 6b indicated by C in FIG.
The sum of the upwardly protruding length B of the upper rib 6a and the downwardly protruding length C of the lower rib 6b is 34 mm, which is almost the same as the nesting length (actually, 1 mm shorter than the nesting length, that is, A slight gap of 1 mm is formed). Here, the upper rib 6a is thicker than the lower rib 6b, and by forming a small gap of 1 mm as described above, even if the upper rib 6a is thick, it is perpendicular to the lower rib 6b. Even if the lower end of the end portion of the reinforcing rib 7 connected to the lower end is inclined as shown in FIG. 1, nesting can be performed without any trouble. Then, the upper end of the thick upper rib 6a hits the inclined edge of the reinforcing rib 7 in the nested state or approaches through a very small gap, and even if a load is applied from above in a multi-stage nesting stack, Rib 6a
Thus, for example, even if the pallets 5 are nested in several tens of levels, the upper end of the thick upper rib 6a hits the inclined edge of the reinforcing rib 7 and the load from above is Can be supported, and the protrusion 3
Can be prevented from penetrating into the recess 2 and becoming difficult to come off. Thus, the pallet 5 having the above-described structure is used.
Is for placing a load on the upper surface of the deck section 1 and inserting a fork of a forklift into the fork insertion section 9 to lift the pallet 5 and move it to a target place. The object is placed on a truck or the like and transported, or the object placed on the pallet 5 is stored in a warehouse or the like. Here, when the object placed on the pallet 5 is lifted and moved by a forklift or conveyed by a truck or the like, it may be shifted laterally on the pallet 5 as described above. The upper projecting length of the lower rib 6b is made longer than the downward projecting length of the lower rib 6b, and the sum of the upward projecting length of the upper rib 6a and the lower projecting length of the lower rib 6b is set to the lower pallet. Since the nesting height of the upper and lower pallets 5 in the nesting stacking state in which the projections 3 of the legs 4 of the upper pallet 5 are fitted into the recesses 2 of the legs 4 of the pallet 5, the pallets 5
The upper rib 6a can be made to protrude upward as long as possible under the condition that nesting can be stacked vertically, and the object placed on the upper surface of the deck 1 can be reliably prevented from skidding. The upper rib 5a has a long protruding length even if the corners are concavely deformed like a cardboard box.
Thus, it is possible to surely prevent skidding and prevent the mounted object from falling down. Although the lower rib 6b is not thinner than the upper rib 6a, the strength does not decrease because the reinforcing rib 7 is integrally formed continuously. However, the upper rib 6a is made thicker than the lower rib 6b. Therefore, even if the upper rib 6a is not reinforced by the reinforcing rib, the rigidity can be increased, and the mounted object is not damaged by the shock at the time of the side slip. Can be prevented. In particular, the lower rib 6b
The upper rib 6a is provided only on all or a part of the outer periphery of the deck portion 1 other than the portion corresponding to the fork insertion portion, because the is provided annularly over the entire circumference. Even if not, the lower rib 6
By setting the thickness to be larger than b, the rigidity can be increased even though the upper rib 6a is not reinforced by the reinforcing rib, and the upper rib 6a is not damaged by an impact at the time of the skidding of the mounted object. As a result, the skid of the mounted object can be more reliably prevented. According to the present invention, as described above, a rib protruding in the vertical direction is provided on the outer peripheral edge of the deck portion, and the tip of the reinforcing rib integrally suspended from the lower surface of the deck portion. Part is integrally connected to the lower rib, and the upwardly projecting length of the upper rib is made longer than the downwardly projecting length of the lower rib. The total length of the protrusions is almost the same as the nesting height of the upper and lower pallets in the nesting stacking state where the protrusions of the legs of the upper pallet are fitted in the recesses of the legs of the lower pallet. Under the condition that nesting can be stacked, the projecting length of the upper rib can be made as long as possible with a reasonable configuration, and the object placed on the upper surface of the deck part is reliably prevented from skidding and the object falling down Can prevent In addition, the lower rib has a strength that does not decrease even if it is thinner than the upper rib because the reinforcing rib is integrally connected, but since the upper rib is formed thicker than the lower rib, Even if the upper ribs are not reinforced with reinforcing ribs, the rigidity can be increased, and it will not be damaged due to the impact of the skid of the mounted object, and the mounted object will be more securely prevented from skidding the mounted object. Can be prevented from falling.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an essential part enlarged sectional view showing a nested state of a pallet of the present invention. FIG. 2 is an enlarged front view of a main part showing a state in which the pallet is nested. FIG. 3 is a plan view of the pallet. FIG. 4 is a bottom view of the pallet. FIG. 5 is a front view of the pallet. FIG. 6 is a right side view of the pallet. FIG. 7 is a sectional view taken along line XX of FIG. FIG. 8 is a sectional view taken along line YY of FIG. FIG. 9 is a partially omitted front view showing a state where the above pallets are nested. FIG. 10 is an enlarged sectional view showing a state where pallets of a conventional example are nested. [Description of Signs] 1 Deck 2 Recess 3 Protrusion 4 Leg 5 Pallet 6 Rib 6a Upper rib 6b Lower rib

Claims (1)

Claims: 1. An upper opening formed in a rectangular plate-like deck portion, wherein the upper surface side is a concave portion which is open upward, and the lower surface side is a downwardly projecting protruding portion which can be fitted into the concave portion. In a pallet provided with a plurality of legs having inclined side walls so as to become wider toward the side, ribs protruding vertically are provided on the outer peripheral edge of the deck portion, and upper ribs projecting upward from the upper surface of the deck portion are provided on the deck portion. It is formed thicker than the lower rib protruding downward from the lower surface, and the tip of the reinforcing rib that is vertically attached to the lower surface of the deck is integrally connected to the lower rib, and the upper rib protrudes upward. Is longer than the downwardly projecting length of the lower rib, and the sum of the upwardly projecting length of the upper rib and the downwardly projecting length of the lower rib is added to the recess of the leg of the lower pallet. Nesting stack with projections Carrying pallet, characterized by comprising a substantially the same height as the nesting height of the upper and lower pallets in.