JP2880657B2 - 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 which can be easily handled by a forklift.

[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. These pallets connect the four corners of the upper deck board and the lower deck board and their intermediate parts with girders, and form a space surrounded by the upper deck board, the lower deck board and the girders as a fork insertion port. . Then, a fork of a forklift is inserted into the fork insertion opening, lifted, moved, and transported.

When moving a pallet on which a load is placed by a forklift, transporting the pallet, and storing or storing the pallet at a target location, it is not always necessary to accurately place the pallet in a predetermined position by lowering the fork and keeping the pallet. Not always. In such a case, after the fork is lowered and the pallet is once placed on the floor, the pallet is moved by pushing the side of the pallet with the tip of the fork of the forklift, and the storage and storage position is corrected. I have. Also, when the pallet is loaded on a truck bed, the pallet is once placed on the bed, and then pushed with the tip of a fork to correct the position.

[0004]

As described above, when the tip of the fork of the forklift is pressed against the side surface of the pallet, the tip of the fork is formed to be relatively thin.
Since the side surface of the upper deck board and the peripheral surface of the spar are formed to be thin, the side surface of the pallet, that is, the peripheral surface of the upper deck board or the spar may be damaged when the fork is strongly struck. In addition, the sides of the upper deck board are formed smoothly, and are not formed to a sufficient thickness (height) to lock the tip of the fork. May be caused.

Further, Japanese Utility Model Publication No. Hei 5-44281 discloses that "a projection for enlarging the area of the upper surface is integrally formed on the upper outer peripheral edge of the upper deck, and a frame is erected on the upper end of the projection. Further, a cutout portion is formed at each corner of the frame along the circumferential direction. " FIG. 7 is a bottom perspective view showing a main part of the pallet described in the above publication. That is, the lower deck 1
And a hollow support 2 erected on the lower deck 1 and an upper deck 3 provided on the support 2 and having a flat upper surface 4. The lower deck 1 is provided around the upper deck 3. A projecting portion 5 which is set slightly longer than each peripheral length to enlarge the area of the upper surface is formed.

An elongated plate-like frame 6 is vertically set up in the circumferential direction of the upper end, and a cutout 7 is formed in each corner of the frame 6 along the circumferential direction. further,
The lower edge of the upper deck 3 above the fork insertion opening is formed on an inclined surface to facilitate the fork insertion. Therefore, the side surface of the deck board is formed extremely thin (low height). Therefore, in the case of the known pallet, the tip of the fork cannot be pressed against the side surface of the deck board. When the pallet is moved by pressing the tip of the fork, the tip of the fork is pressed against the frame 6 erected on the upper surface of the projection.
Since the frame 6 does not have sufficient strength against the pressing force of the fork, there is a possibility that the frame may be damaged if the fork tip is pressed to force the pallet to move. Also, since the frame 6 is not formed high enough to abut the tip of the fork, the tip of the fork comes off by sliding while moving the pallet by pressing the tip of the fork, and the luggage is attached to the load. There is a risk of hitting and damaging.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and is intended for a forklift which can be stably moved by locking the fork tip without being damaged even if the fork tip of the forklift is struck. It is intended to provide a synthetic resin pallet.

[0008]

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, in formed by an upper deck board and a lower deck board connected through the digit synthetic resin pallet, substantially fork tip deck board side surface of the upper portion of the fork insertion openings Full width abuts forward and above
A fork engaging portion comprising a front contact surface and an upper contact surface biased toward the fork. The pallet made of synthetic resin according to claim 2 is characterized in that the fork engaging portion is formed over the entire length between the girders. According to a third aspect of the present invention, in the pallet made of synthetic resin, the fork engaging portion is formed at a part between the beams. According to a fourth aspect of the present invention, the height of the front contact surface with which the fork tip comes into contact is the same as the height of the deck board. Synthetic resin pallet according to claim 5, formed symmetrically to the fork engaging portion around the intermediate portion of digits, forward
The height of the contact surface is the same as the height of the upper deck board.
Characterized in that that.

Further, according to a sixth aspect of the present invention, in order to enlarge the area of the upper deck board to be larger than that of the lower deck board, an enlarged portion is integrally provided on each side, and an upper end surface of the enlarged portion is provided. And a fork tip on the side of the deck board above the fork slot.
A front abutment surface whose width abuts and is urged forward and upward; and
A fork locking portion comprising an upper contact surface is formed. Further, the synthetic resin pallet according to claim 7, together with the fork engaging portion, and wherein the forming the second fork engaging portion comprising a front locking portion and the upper locking portion on the lower surface the upper deck board . 9. The synthetic resin pallet according to claim 8, wherein the second fork engaging portion is provided with a fork engaging rib on a lower surface of an upper deck board within a depth of a girder to form a front engaging portion, and the fork engaging rib is provided. The support rib for reinforcement is provided on the front and rear surfaces of the fork, and the lower surface of the support rib for reinforcement on the front surface of the rib for locking the fork is inclined to form an upper locking portion. The synthetic resin package according to claim 9.
Let the fork locking part and the second fork locking part
It is formed so as to overlap in the depth direction of the let
It is characterized by the following.

[0010]

According to the first aspect of the present invention, the substantially entire width of the tip end of the fork is reliably locked by the front and upper contact surfaces of the fork by the fork locking portion. Also forward
The pallet can be reliably pushed by contacting the contact surface with substantially the entire width of the tip of the fork, and the fork can be inadvertently detached during movement due to the locking by the upper contact surface . Absent. In addition, even when the fork is lifted, the fork can be lifted and moved with the fork side bottom surface of the pallet slightly raised because the almost entire width of the fork tip is locked to the upper contact surface. . In addition, by forming the fork locking portion on the lower edge of the upper deck board, it is possible to utilize the fact that the fork of the forklift is inclined upward toward the tip direction, and can be inserted into the fork locking portion. Can be easily performed.

According to the second aspect, the tip of the fork can be brought into contact with an arbitrary portion. According to the third aspect of the present invention, the contact position of the tip of the fork can be regulated by forming the fork in accordance with the width gap of the fork. According to the fourth aspect , the front contact surface of the fork can be formed with a sufficient height by setting the same height as the upper deck board. According to the fifth aspect, the pallet can be moved in a direction perpendicular to the side surface without changing the side surface. According to the sixth aspect, even in a pallet in which the area of the upper deck board is enlarged, the pallet can be moved by pushing without contacting the frame on the upper end surface. Further, according to the seventh aspect, the pallet can be moved without contacting the fork with the frame at the upper end of the enlarged portion by the second fork engaging portion on the lower surface of the upper deck board together with the fork engaging portion. Further, the second fork engaging portion is advantageous when the pallet is lifted and moved further. According to the eighth aspect, since the second fork engaging portion is formed within the depth of the girder on the lower surface of the deck board, the strength of the deck board can be sufficiently maintained. In addition, the reinforcing support ribs support the fork from the back to prevent damage, and the fork locking ribs are provided with an upper locking portion and no fork by forming an inclined surface on the lower surface of the reinforcing support rib on the front surface. The tip can be inserted and locked. According to the ninth aspect, the tip of the fork can be brought into contact with any of the locking portions only by slightly moving the forklift in the depth direction of the pallet.

[0012]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a front view of a pallet in which a frame is erected on the upper surface of an upper deck board, FIG. 2 is a plan view showing a part of the lower surface of an upper molded member, and FIG. It is a part bottom perspective view. Pallet 1 shown
0 is formed by welding two molded members, that is, an upper molded member 15 composed of the upper deck board 11 and the spar 13, and a lower molded member 20 composed of the lower deck board 17 and the spar 19. The welding is performed on the end faces of the girders 13 and 19. The digits 13 and 19 are
The upper deck board 1 is provided at each of the four corners of the deck board, the middle thereof, and the center on the diagonal line.
1. A four-sided pallet is formed with a fork insertion port 21 between the lower deck boards 17.

The upper deck board is an upper plate 2 on which luggage is placed.
3 and a reinforcing rib group 25 provided on the lower surface of the upper plate 23, and a part of the upper plate 23 surrounded by the reinforcing rib group 25 is provided with a drainage through hole 27. . As shown in FIGS. 2 and 3, the reinforcing rib group 25 includes, for example, reinforcing ribs 25 a provided in a direction parallel to one side end surface 24.
And a reinforcing rib 25 provided at right angles to the side end surface 24.
b, X-shaped reinforcing ribs 25c for connecting the spar 13 at an angle, and a substantially V-shaped reinforcing rib 25d partially shown on the side end surface 24. The reinforcing rib group 25 is formed at substantially the same height as the whole, and prevents bending when a load is placed. The ends of the reinforcing ribs 25b and the substantially V-shaped reinforcing ribs 25d are connected to the side end surfaces 24 with their lower surfaces inclined. The substantially V-shaped reinforcing rib 25d guides the fork when inserting the fork, and can prevent the side end face 24 from being damaged by the collision of the fork.

The upper deck board 11 is provided with enlarged portions 29 on each side to make the area larger than the area of the lower deck board 17. That is, the enlarged portion 29 is formed by slightly projecting the upper plate 23 constituting the upper deck board 11 from the spar 13. On the lower surface of the enlarged portion 29,
A substantially triangular reinforcing rib 30 is provided in the part of the spar 13, and between the spar 13 and the spar 13, the reinforcing rib 25b and the substantially V-shaped reinforcing rib 2 are provided.
5d is provided. On the other hand, on the upper surface of the enlarged portion 29, a frame body 31 notched at a corner is provided upright. As described above, the area of the upper deck board 11 is larger than that of the lower deck board 17, and
By providing 1, the other pallets can be stored in the frame 31 when they are stacked, and positioning and stabilization of the upper pallet can be obtained. In addition, it is possible to reliably prevent the loaded luggage from being accidentally dropped.

Further, a fork engaging portion 33 is formed at a lower edge (lower corner) between the girders 13 of the upper deck board 11. The fork engaging portion 33 is formed by cutting a lower edge of the deck board 11 above the fork insertion opening 21 into a substantially L-shape. That is, in the illustrated example, the spar 13 at the corner portion is used.
On the lower surface of the enlarged portion 29, the reinforcing ribs 25b and V
Cut off the reinforcing ribs 25d, and almost all of the tip of the fork.
The fork locking portion 33 is formed by an upper contact surface 34 and a front contact surface 35 that contact each other in width . The front
The contact surface 35 is formed in a direction parallel to the side end surface 24 and at substantially the same height as the height of the reinforcing rib portion group 25. Further, a substantially V-shaped reinforcing rib 36 is provided behind the front contact surface 35 and also with the reinforcing rib 25a. The V-shaped reinforcing ribs 36 guide the insertion of the fork, and support the fork from behind when the fork collides with the front contact surface 35 to prevent the fork from being damaged.

As described above, the fork is provided at the lower edge of the upper deck board by utilizing the fact that the fork is inclined upward toward the tip end, so that the fork engaging portion 33 is provided at the lower edge of the upper deck board.
The tip end of the fork can be easily locked, and can be reliably moved by pressing against the front contact surface 35. At this time, the fork tip upper abutment surface 34
And the front contact surface 35 is engaged with the corner, and the pallet is locked to the upper contact surface 34 by slightly lifting the pallet. It can be pushed and moved in the state of being pressed (see FIG. 6). Further, by setting the height of the front contact surface 35 to be substantially the same as the height of the reinforcing rib group 25, the tip of the fork is securely locked. Further, it is preferable that the fork engaging portion is formed symmetrically with respect to the middle girder. In this way, when the pallets are formed symmetrically, the fork can be pressed evenly, and the pallet can be moved in a direction perpendicular to the side surface.

The fork engaging portion 33 may be formed on the entire space between the girders 13 or on a part thereof. Further, when the fork engaging portion 33 is formed ,
The depth dimension of the one contact surface 34 is not limited to the enlarged portion 29 of the upper plate 23, and may be formed by cutting out in the depth direction more than the enlarged portion 29. In the above embodiment, the fork insertion opening 21 is formed only in one direction, but may be formed in two orthogonal directions.

One of the features of the present invention is that the second fork comprises a front locking portion and an upper locking portion for receiving and locking the tip of the fork on a part of the upper deck board 11 in contact with the fork insertion opening 21. That is, the locking portion 37 is provided. The second fork engaging portion 37 is formed by forming a concave shape having a size into which the tip of the fork can be inserted. In the embodiment, two second fork engaging portions 37 are formed side by side in the fork insertion direction. That is, the upper deck board 11 has the same length in the frontage direction as the fork engaging portion 33.
A second reinforcing rib 25 counting from the side end face 24
a is a fork locking rib 3 forming a front locking portion of the fork.
9, the third reinforcing rib 25a is a fork locking rib 40 which also forms a front locking portion, and is substantially perpendicular to the rear surface of the fork locking ribs 39, 40 on the opposite side as viewed from the side end surface 24. The fork locking ribs 39, 40 are provided integrally with a reinforcing support rib 41, and the fork locking ribs 39, 40 are formed with a recess 38 in which a fork tip can be inserted. It is what it was. The second fork locking portion 37 overlaps the fork locking portion 33 in the depth direction of the pallet (the direction in which the fork is inserted).

Further, in the recess 38, reinforcing support ribs 42 forming an upper locking portion inclined upward in the depth direction are provided.
46 are provided. Accordingly, the fork is guided and inserted by the reinforcing support rib 42 or 46, and the upper surface of the tip is locked. The reinforcing support rib 41 is inclined upward in the depth direction of the pallet, and reinforces the fork locking rib 39 or the fork locking rib 40. Therefore, the fork locking ribs 39, 4
When the tip of the fork is inserted into the recess 38 on the front surface of the fork, it is locked by the fork locking rib 39 or the fork locking rib 40. The reinforcing support ribs 41
Is supported from behind against the impact when the tip of the fork collides with the fork locking ribs 39, 40, and is prevented from being damaged. In the above embodiment, the auxiliary rib 43 is provided to further reinforce the upper plate 23 and the reinforcing support rib 41. In addition, since the reinforcing support rib 41 provided at the innermost side does not function as an upper locking portion, it is not necessary to incline the pallet upward in the depth direction. Also,
A reinforcing rib 44 for reinforcing the upper plate 23 and the reinforcing support rib 46 when the pallet is lifted is provided on the side end surface 24 side of the fork locking rib 39 (see FIG. 2).

The fork locking ribs 39 and 40 constituting the second fork locking portion 37 are made slightly thicker than the other reinforcing ribs, and are formed on the lower surface of the upper deck board within the depth of the girder. It is preferable to maintain the strength of the board. Further, in the above embodiment, the second fork locking portions 37 are formed in two rows side by side in the inserting direction of the fork, but may be one row, or three or more rows.
Further, in the above-described embodiment, the second
Although the fork engaging portion 37 is formed, the upper deck board is not limited to the rib structure as in the embodiment as long as the fork tip can be inserted.
Further, the second fork engaging portion 37 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 width direction are appropriately changed. can do. In the above embodiment, the fork insertion opening 21 is formed only in one direction, but may be formed in two orthogonal directions. Also, the width dimension of the second fork engaging portion 37 is naturally formed to be larger than the width dimension of the fork.

FIG. 4 shows a second embodiment of the present invention and is a perspective view showing a lower surface of an upper forming member corresponding to FIG. This pallet is a pallet having a shape generally used conventionally, and the upper deck board and the lower deck board are formed in the same size. The upper deck board 45 is composed of an upper plate 47 on which luggage is placed, a grid-like reinforcing rib 49 provided on the lower surface of the upper plate 47, and a substantially V-shaped reinforcing rib 50 at the edge. A part of the upper plate 47 surrounded by 49 is provided with a through hole 51 for draining water. Furthermore, the girders 53 and 5 of the upper deck board 45
Lower edge between 3 full forks destination (the corners of the lower side)
A fork engaging portion 55 is formed which includes a front contact surface with which the entire width of the end contacts and an upper contact surface . That is, the fork locking portion 55 includes a front contact surface 57 for locking substantially the entire width of the fork tip portion and an upper contact surface 59.

The fork engaging portion 55 includes a beam 53 and a beam 5
3, the lower edge of the upper deck board 45 is cut in a substantially L-shape in the depth direction by substantially half the height of the reinforcing rib 49, and the cut upper surface is formed as the upper contact surface 59 of the fork. Forward where the tip of the fork abuts the chipped vertical surface
It is formed by forming the contact surface 57. Said
Auxiliary ribs 60 having a small height are formed on the upper contact surface 59 at regular intervals in the frontage direction, and the front contact surface 57 is substantially parallel to the reinforcing rib 49 and the substantially V-shaped reinforcing rib 50 in a direction parallel to the side end surface 61. They are formed at the same height. By forming the fork engaging portion 55 on the lower edge of the upper deck board 45 in this manner, the fork tip can be securely engaged.

Incidentally, the fork engaging portion 55 may be formed at a part between the girders as in the first embodiment, and its position and the length dimension in the width direction can be changed as appropriate. Further, it may be combined with the second fork engaging portion 37 in the first embodiment. The height of the reinforcing ribs 49 of the front abutment surface 57, slightly lower formed from a substantially V-shaped reinforcing ribs 50 may be inclined reinforcing ribs of the portion close to the front abutment surface 57. Further, the fork locking portion 55
The upper contact surface 59 may be formed by increasing the thickness of the upper plate 47 without forming the auxiliary rib 60.

Next, a method of using the pallet of the first embodiment will be described with reference to FIGS. Normally, a fork of the forklift 63 may be inserted from the fork insertion opening 21, lifted, transported, and moved. Further, for example, when loading the pallet on the truck of the truck 65, the pallet is once placed on the carrier, the forklift 63 is retreated, and the tip of the fork is again moved to the fork engaging portion 33.
Plug in. Since the fork is inclined upward toward the distal end, the distal end of the fork can be securely locked by abutting against the front contact surface 35 and slightly lifting it up. If the pallet is moved by moving the forklift forward in this state, the position of the pallet can be adjusted in a safe state. As described above, since the fork tip is not pressed against the spar 13 and the frame 31, the spar 13
And the frame 31 can be prevented from being damaged, and the pallet can be moved safely and reliably.

Even when the bottom surface of the pallet is slightly lifted up in a floating state, the tip of the fork is locked by the upper contact surface 34 so that it does not come off accidentally. Also,
Similarly, when the tip of the fork is inserted into the second fork engaging portion 37, the pallet is more securely supported, and therefore does not come off even if the pallet is tilted further. Therefore, it is advantageous in the case of moving a large distance. The greater the inclination of the pallet, the smaller the contact area with the carrier and the smaller the frictional resistance, so that the pallet can be moved smoothly.

[0026]

As described above, in the first aspect, the fork engaging portion is formed at the lower edge of the upper deck board.
The pallet can be pushed and moved by securely locking the tip of the fork. Further, since the pallet girder or frame is not pressed, there is no possibility that the pallet is damaged, the fork is inadvertently dislodged to damage the pallet or luggage, or collapse of the load. According to the second aspect, by forming the fork locking portion over the entire length between the girders, the tip of the fork can be brought into contact with an arbitrary portion. According to the third aspect, the fork engaging portion is formed at a part between the girders to regulate the contact position of the fork tip, so that the fork can always be engaged at a stable position. According to the fourth aspect, the front contact of the fork.
The surface can be enlarged, and the fork can be reliably locked. According to the fifth aspect, the pallet can be moved in a direction perpendicular to the side surface of the pallet. In claim 6,
The fork can be securely locked even on a pallet in which the area of the upper deck board is enlarged. According to the seventh aspect, when the fork is locked by the second fork locking portion, the pallet can be safely moved even when the fork side of the pallet is raised. In the eighth aspect, since the second fork locking portion is formed together with the fork locking portion on the upper deck board within the depth dimension of the girder on the lower surface of the deck board, the second fork locking portion retains sufficient strength. be able to. Further, by making the lower surface of the reinforcing support rib forming the upper locking portion an inclined surface, the fork can be inserted together with the reinforcement. According to the ninth aspect, the tip of the fork can be brought into contact with any of the locking portions only by slightly moving the forklift in the depth direction of the pallet.

[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 plan view showing a lower surface of an upper molded member.

FIG. 3 is a bottom perspective view showing the lower surface of the upper molded member, with a part cut away.

FIG. 4 is a partially enlarged perspective view showing a lower surface of an upper molded member according to another embodiment.

FIG. 5 is an explanatory view showing a method of using when loading on a truck bed.

FIG. 6 is a partially enlarged sectional view showing a locked state of a fork tip.

FIG. 7 is a partially cutaway bottom perspective view showing a main part of a conventional pallet.

[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 23 Upper plate 24 Side end face 25 Reinforcement rib group 27 Drainage hole for drainage 29 Enlarged portion 30 Triangular reinforcement rib 31 Frame body 33 Fork locking portion 34 Upper contact surface 35 Front contact surface 37 Second fork locking portion 39 Fork locking rib 40 Fork locking rib 41 Reinforcement support rib 42 Reinforcement support rib 43 Auxiliary rib 45 Upper deck board 46 Reinforcement support rib 47 Upper plate 49 Lattice reinforcement rib 50 Substantially V-shaped reinforcement rib 51 Drainage through hole 53 Girder 55 Fork engaging part 57 Front contact surface 59 Upper contact surface 60 Upper rib

────────────────────────────────────────────────── ─── 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 (9)

(57) [Claims] 1. A synthetic resin pallet in which an upper deck board and a lower deck board are connected via a girder, a fork is provided on a side of the deck board above the fork insertion opening.
Approximately the entire width of the tip is contacted and urged forward and upward
A pallet made of synthetic resin, wherein a fork engaging portion comprising a front contact surface and an upper contact surface is formed. 2. The synthetic resin pallet according to claim 1, wherein the fork locking 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 height of a front abutting surface with which the fork tip abuts is the same as the height of an upper deck board. A pallet made of a synthetic resin according to the item. 5. The fork engaging portion is formed symmetrically with respect to an intermediate girder, and the height of the front contact surface is the same as the height of the upper deck board. The pallet made of synthetic resin according to any one of claims 1 to 3. 6. In order to enlarge the area of the upper deck board to be larger than that of the lower deck board, an enlarged portion is integrally provided on each side, and a frame is provided on an upper end surface of the enlarged portion.
Fork tip on the side of the deck board above the fork insertion slot
The front where substantially the entire width of the end abuts and is urged forward and upward
A pallet made of synthetic resin, wherein a fork engaging portion comprising a contact surface and an upper contact surface is formed. 7. together with the fork engaging portion, characterized in that the formation of the front locking portion and the upper locking portion whether <br/> Ranaru second fork engaging portion of the fork to the lower surface the upper deck board A synthetic resin pallet according to claim 6. 8. The second fork engaging portion is provided with a fork engaging rib on a lower surface of an upper deck board within a depth of a girder to form a front engaging portion, and reinforcement is provided on front and rear surfaces of the fork engaging rib. 8. The synthetic resin pallet according to claim 7, wherein a supporting rib is provided, and a lower surface of the reinforcing supporting rib on a front surface of the fork locking rib is inclined to form an upper locking portion. 9. The pallet according to claim 7, wherein the fork engaging portion and the second fork engaging portion are formed so as to overlap in a depth direction of the pallet .
The pallet made of synthetic resin according to claim 1 .