JP2880656B2 - Plastic pallets - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin pallet used for storing and transporting luggage, and more particularly to a synthetic resin pallet capable of efficiently loading a truck with a forklift on a truck bed. .

[0002]

2. Description of the Related Art Synthetic resin pallets for forklifts used for storing and transporting luggage have excellent corrosion resistance and stain resistance, and are widely used in place of wooden pallets. In these pallets, the upper deck board and the lower deck board are connected at the four corners and the middle part thereof with girders, and the space surrounded by the upper deck board, the lower deck board and the girders is used as a fork insertion port. . Then, a fork of a forklift is inserted into the fork insertion opening, lifted, moved, and transported.

[0003] Usually, the bed of a large truck is large enough to load these pallets in two rows. Therefore, when these pallets are loaded in two rows on the bed of a large truck, it is common that the pallets are loaded on one side and then the forklift is moved to the opposite side of the bed and loaded. That is, for example, as shown in FIG.
Next, after loading from the left side in the figure, the second pallet is moved from the right side in the figure by moving the forklift 1 and loaded from the right side.

[0004]

As described above, when loading on a cargo bed of a truck, it is necessary to load from both the left and right sides, so that the work efficiency is reduced by the movement of the forklift. In a warehouse, etc.,
If there is not enough space on both sides of the bed for the forklift to move around, it cannot be loaded from both sides. In such a case, after loading the pallet on one side of the carrier, the truck must be turned and then loaded, or the truck must be parked in a wide area and transported to that location by a forklift and loaded. There is. Even in such a case, the efficiency of the loading operation becomes extremely poor.

If a space for the forklift to work can be secured only on one side of the loading platform, the pallet is loaded from one side of the loading platform, and the side of the pallet is pushed with the tip of a fork of the forklift to push the pallet to the opposite side. It can be moved. However,
If the load is light, it is easy to move the pallet, but if the load is heavy, a greater pressing force is required.On the other hand, the tip of the fork is formed relatively thin, so the fork must be strong. If pressed, the sides of the pallet, that is, the sides of the upper deck board or spar, may be damaged. In addition, since the pallet slides on the entire bottom surface of the pallet, the pallet swings due to a large frictional force, or the upper deck board is not formed to a thickness (height) sufficient to lock the tip of the fork. There is a danger that the tip of the fork comes off the side of the pallet and damages the pallet or collapses the load.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation, and efficiently loads a truck onto a cargo bed.
Further, it is an object of the present invention to provide a synthetic resin pallet for a forklift capable of moving the pallet by locking a fork tip of the forklift for safe operation.

[0007]

Means for Solving the Problems The structure of the present invention has the following structure to achieve the above object. That is, the synthetic resin pallet according to claim 1 is a pallet formed by welding two molded members, and the molded member is composed of a deck board and a spar integrally provided with the deck board. The pallet is characterized in that a fork engaging portion comprising a front engaging portion for engaging a fork tip of a forklift and an upper engaging portion is formed on a lower surface of an upper deck board. Further, the synthetic resin pallet according to claim 2 is characterized in that the fork locking portion is formed over the entire length between the girders. Further, the pallet made of synthetic resin according to claim 3 is characterized in that the fork engaging portion is formed at a part between the girders. According to a fourth aspect of the present invention, in the synthetic resin pallet, the fork engaging portion is provided with a fork engaging rib on a lower surface of the upper deck board in a direction parallel to a side end portion to form a front engaging portion. The lower surface of the upper deck board on the side facing the side end of the stop rib is an upper locking portion.

According to a fifth aspect of the present invention, in the synthetic resin pallet, the fork locking portion is provided with a fork locking rib on a lower surface of the upper deck board in a direction parallel to a side end portion to form a front locking portion. A reinforcing support rib is provided on a rear surface of the fork locking rib, and a lower surface of an upper deck board on a side facing a side end of the fork locking rib is an upper locking portion. . Further, in the synthetic resin pallet according to claim 6, the fork locking portion is provided with a fork locking rib on a lower surface of the upper deck board within a depth dimension of the girder in a direction parallel to a side end portion, and is provided with a front locking portion. None, a reinforcing support rib is provided on the front and rear surfaces of the fork locking rib, and the lower surface of the reinforcing support rib on the front surface of the fork locking rib is inclined to form an upper locking portion. is there. According to a seventh aspect of the present invention, in the pallet made of synthetic resin, the fork engaging portions are formed on the lower surface of the upper deck board between the girders symmetrically with respect to the middle girders.

[0009]

According to the first aspect, when the fork is inserted, the tip of the fork is locked by the front locking portion, and the upper surface of the tip of the fork is locked by the upper locking portion. By locking the tip of the fork to the front locking portion, the pallet can be reliably pushed and moved, and the side surface of the pallet is not damaged. Further, since the fork of the forklift is inclined upward toward the distal end, the forklift can be easily inserted into the fork engaging portion. Claim 2
In the above, the insertion position of the fork at the fork insertion opening is not limited. According to the third aspect, the pallet can always be moved at a stable position by limiting the position of the fork locking portion. According to the fourth aspect, a fork locking rib serving as a front locking portion can be provided by utilizing a reinforcing rib on a lower surface of the deck board.

According to a fifth aspect, the reinforcing support ribs provided on the front and rear surfaces of the fork locking rib function to support the impact of the fork locking rib from the back. According to the sixth aspect, the fork can be easily inserted, and the strength of the upper deck board forming the upper locking portion can be sufficiently maintained. According to the seventh aspect, the pallet can be moved by being pushed in a direction perpendicular to the side surface of the pallet.

[0011]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. The illustrated pallet 10 is formed by welding two molded members, that is, an upper molded member 15 composed of an upper deck board 11 and a spar 13, and a lower molded member 20 composed of a lower deck board 17 and a spar 19. Yes,
The welding is performed on the end faces of the girders 13 and 19. The girders 13 and 19 are disposed at the intersections of the diagonal lines connecting the four corners of the deck board, the middle and the four corners, respectively, and form a space between the upper deck board 11 and the lower deck board 17. A four-sided pallet is formed as the fork insertion port 21. The upper surface serving as the loading surface of the upper deck board 11 is formed smoothly,
A reinforcing rib group 22 having a height lower than that of the spar 13 is provided on the back surface, and a drain hole 23 is formed in a part of the portion surrounded by the reinforcing rib group 22.

As shown in FIGS. 2 and 3, the reinforcing rib group 22 includes, for example, a reinforcing rib 22a provided in a direction parallel to the side end 25 and a direction perpendicular to the side end 25. And the reinforcing ribs 22b provided on the
It comprises a V-shaped reinforcement rib 22c and a substantially V-shaped reinforcement rib 22d provided between the side end portion 25 and the reinforcement rib 22a inside the side end portion 25. The reinforcing rib group 22 is formed at substantially the same height as the side end portion 25, and such a reinforcing rib group 22 can prevent the pallet from being bent when carrying or storing a load. In particular, the substantially V-shaped reinforcing rib 22d is provided at the edge of the fork insertion opening 21 of the upper deck board 11, so that the fork can be easily inserted, and the fork collides with the forklift when the fork is inserted. 25 can be supported from behind to prevent breakage of 25.

Further, one of the features of the present invention is that a fork engaging portion 27 for receiving and engaging the tip of the fork is provided on a part of the upper deck board 11 which is in contact with the fork insertion opening 21. The fork locking portion 27 has a concave shape large enough to insert the tip of the fork,
The fork has a structure having a front locking portion and an upper locking portion. That is, the side end 2 is brought into contact with the intermediate girder 13.
5, a notch 29 is provided to form a side end 25a whose height is reduced, and a reinforcing rib 22b and a substantially V-shaped reinforcing rib 22e between the reinforcing rib 22a inside the side end 25a are cut out. Incline according to the height of 29. On the other hand, in the fork insertion direction (the depth direction of the pallet) at the side end portion 25, the second reinforcing rib 22a counted from the side end portion 25 is a fork locking rib 30 serving as a front locking portion of the fork. The second reinforcing rib 22a is a fork locking rib 31 forming a front locking portion of the fork, and the lower surface of the upper deck board on the side facing the side end of the fork locking ribs 30, 31 is locked with the fork upward. Part. On the rear surface opposite to the side facing the side end of the fork locking ribs 30, 31, reinforcing support ribs 32, 33 perpendicular to the side end 25 are provided. A reinforcing support rib 34 is provided on the side facing the end.

The reinforcing support ribs 32 and 33 are inclined upward in the depth direction of the pallet, and reinforce the fork locking rib 30 or the fork locking rib 31 from the rear. Further, the reinforcing support rib 34 on the side end 25 side of the fork locking rib 30 is also inclined upward in the depth direction of the pallet. Therefore, a concave portion is formed on the front surface of the fork locking ribs 30, 31. By inserting the fork distal end into the concave portion, the fork distal end becomes the fork locking rib 30 or the fork locking rib. The upper surface of the fork is locked by a reinforcing support rib 34 or a reinforcing support rib 33 forming an upper locking portion. The reinforcing support ribs 33 and 34 in the recess serve as an upper locking portion of the fork, reinforce the upper deck board when lifting the pallet as described later, and also serve as a guide when inserting the fork. In the above embodiment, the reinforcing support rib 3
Auxiliary ribs 35 to further reinforce 2, 33 and 34
Is provided. The auxiliary rib 35 is parallel to the side end 25 and is provided integrally with the reinforcing support ribs 32, 33 and 34 (see FIGS. 3 and 5). Since the reinforcing support rib 32 provided at the innermost position does not function as an upper locking portion, it is not necessary to incline the pallet in the depth direction.

The reinforcing support ribs 32, 33 and 3
4 is not limited to being provided in a direction perpendicular to the side end portion 25, but can be provided in an oblique direction. Further, the length dimension of the fork locking ribs 30, 31 is formed at least larger than the width dimension of the fork. The fork locking ribs 30 and 31 constituting the fork locking portion 27 are slightly thicker than other reinforcing ribs, and are formed on the lower surface of the upper deck board within the depth dimension of the spar to maintain the strength of the deck board. Preferred above. Further, in the above-described embodiment, the fork locking portions 27 are formed in two rows before and after in the inserting direction of the fork, but may be one row, or three or more rows. Further, in the above embodiment, the fork engaging portion 2 is
7, the upper deck board is not limited to the rib structure as in the embodiment. Further, the fork locking portion 27 may be formed over the entire length of the width between the girders, or may be formed on a part between the girders, and its position and the length dimension in the frontage direction may be appropriately changed. Can be. In the above embodiment, the fork insertion opening 21 is formed only in one direction, but may be formed in two orthogonal directions.

Next, a method of using the pallet will be described with reference to FIGS. Normally, a fork of a forklift may be inserted, lifted up, transported, and moved in the same manner as in the related art. Furthermore, for example, when loading on a truck bed, the pallet is once placed on the bed, the forklift is retracted, and the pallet is advanced again to insert the tip 37 of the fork into the fork engaging portion 27. At this time, since the fork of the forklift is inclined upward toward the distal end, the forklift can be easily inserted into the fork engaging portion 27 by inserting the distal end portion 37 from the fork insertion opening 21 and slightly lifting it up.
By inserting the fork distal end portion 37 into the fork engaging portion 27, the fork distal end is engaged with the fork engaging rib 30 or the fork engaging rib 31, which is a front engaging portion of the fork, and the upper surface of the fork end is engaged with the upper surface. It is locked to the lower surface of the reinforcing support rib 34 as a stop.

The fork tip 37 is connected to the fork locking portion 27.
After that, the fork is slightly lifted to tilt the pallet (see FIG. 4). By inclining the pallet, the contact area with the loading platform is reduced and the frictional resistance is reduced, so that the pallet can be easily pushed and moved to the opposite side. Since the fork tip 37 is securely locked by the fork locking rib 30 or the fork locking rib 31, the pallet can be pushed and moved safely without coming off.

[0018]

As described above, in the first aspect, the fork engaging portion having the front engaging portion and the upper engaging portion is formed on the lower surface of the upper deck board. Can be moved. Since there is no pressing on the side surface of the pallet, there is no possibility that the pallet is damaged or the fork comes off and the load collapses. Therefore, the operation of loading the truck onto the carrier by the forklift can be performed efficiently and safely. According to the second aspect, the fork can be inserted and locked from an arbitrary position of the fork insertion opening. According to the third aspect, since the positioning is performed, the tip of the fork can be always locked at a stable position. According to the fourth aspect, the front locking portion and the upper locking portion can be formed by using the reinforcing rib provided on the lower surface of the upper deck board.

According to the fifth aspect of the present invention, the fork locking rib forming the front locking portion can be reinforced from the rear surface. In the sixth aspect, since the upper locking portion is formed by the reinforcing support rib, the fork can be guided and can be made robust. According to claim 7, since the pallets are symmetrical, they can be pressed evenly, and the direction of the pallet does not change during the movement.

[Brief description of the drawings]

FIG. 1 is a front view of a pallet according to the present invention.

FIG. 2 is a partially enlarged sectional view showing a main part.

FIG. 3 is a perspective view showing a lower surface of an upper deck board.

FIG. 4 is an explanatory diagram showing a method of loading a truck onto a carrier.

FIG. 5 is a partially enlarged sectional view showing a locked state of a fork tip.

FIG. 6 is an explanatory view showing a conventional method of loading a pallet truck onto a carrier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Pallet 11 Upper deck board 13 digits 15 Upper molded member 17 Lower deck board 19 digits 20 Lower molded member 21 Fork insertion port 22 Reinforcement rib group 23 Drainage through hole 25 Side end portion 27 Fork engaging portion 29 Notch portion 30 Fork member Stop rib 31 Fork locking rib 32 Reinforcement support rib 33 Reinforcement support rib 34 Reinforcement support rib 35 Auxiliary rib 37 Fork tip

────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Masahiro Samejima 1 Nobesawa, Kaisei-cho, Ashigara-gun, Kanagawa Prefecture Inside the Meiji Rubber Chemicals Kanagawa Plant (56) References Japanese Utility Model 6-22236 (JP, U) Hei 5-44281 (JP, Y2) (58) Field surveyed (Int. Cl. ⁶ , DB name) B65D 19/32 B65D 19/38

Claims (7)

(57) [Claims] 1. A pallet obtained by welding two molded members, said molded member comprising a deck board and a spar integrally provided with the deck board. A synthetic resin pallet having a fork locking portion formed on a lower surface of the board, the locking portion including a front locking portion for locking a fork tip of a forklift at a predetermined distance from a side end and an upper locking portion. . 2. The synthetic resin pallet according to claim 1, wherein the fork engaging portion is formed over the entire length between the girders. 3. The synthetic resin pallet according to claim 1, wherein said fork engaging portion is formed at a part between the girders. 4. The fork locking portion is provided with a fork locking rib on a lower surface of an upper deck board in a direction parallel to a side end portion to form a front locking portion, and is provided at a side end portion of the fork locking rib. The synthetic resin pallet according to any one of claims 1 to 3, wherein the lower surface of the upper deck board on the side facing the upper deck board is an upper locking portion. 5. The fork engaging portion is provided with a fork engaging rib on a lower surface of the upper deck board in a direction parallel to a side end portion to form a front engaging portion, and further provided on a rear surface of the fork engaging rib. The reinforcing support rib is provided, and the lower surface of the upper deck board on the side facing the side end of the fork locking rib is an upper locking portion.
A pallet made of a synthetic resin according to the item. 6. The fork locking rib is provided with a fork locking rib on a lower surface of an upper deck board in a depth dimension of a girder in a direction parallel to a side end portion to form a front locking portion. The support ribs for reinforcement are provided on the front and rear surfaces of the fork, and the lower surface of the support ribs for reinforcement at the front surface of the rib for fork lock is inclined to form an upper lock portion. A pallet made of a synthetic resin according to the item. 7. The fork according to claim 1, wherein the fork engaging portion is formed on the lower surface of the upper deck board between the girders symmetrically with respect to an intermediate girder. Pallets made of synthetic resin.