JPH09490U - Plastic pallets - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To obtain stable support of luggage while ensuring easy positioning and stable support of stacked pallets, improve drainage effect, and ease of pallet moving carriage movement. To get SOLUTION: A projecting portion 12 for enlarging an area of an upper surface of an upper deck 1 is integrally formed, and a frame body 14 is erected in a circumferential direction of an upper end of the projecting portion, and each corner portion 12a of the frame body.
The notch 14a was formed in the. In addition, each vertical and horizontal beam member 7a,
7b was provided only on the lower surface of each of the upper and lower horizontal beam members 11, and a drain hole 7c was provided at a position located between the vertical and horizontal beam members. Further, the horizontal rail members 7A to 7F of the lower deck located below the fork insertion ports 5 and 6 are provided with a flat surface-shaped upper surface 7d in which the drainage holes 7c are formed and flat surface inclined side surfaces 7a.
The cross section was formed into a substantially trapezoidal shape by means of e and the connecting portions of both were continuously connected.

Description

[Detailed description of the device]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a synthetic resin pallet for carrying a load by, for example, a forklift.

[0002]

[Prior art]

 As is well known, as a pallet used for transporting and moving various loads by a forklift, wooden pallets that are combined with wooden frames have been widely used. Therefore, there are problems such as an increase in weight and a decrease in durability. Therefore, in recent years, a lower deck or the entire upper deck provided on the lower deck via struts, which is molded of a synthetic resin material, has been provided, and various improvements have been made in its shape and structure (for example, (See Japanese Examined Patent Publication No. 52-39532, etc.).

[0003]

[Problems to be solved by the device]

 However, although the conventional synthetic resin pallets described above can be made lightweight and have improved durability, they are easy to slide down, and consideration is given to drainage such as rainwater adhering to the upper surface of the upper deck and lower deck. Insufficient consideration is given to the workability of the trolley for moving pallets from the entrance between the upper decks.

As another conventional example, there is also provided a pallet made of synthetic resin described in JP-A-57-163645, in which drain holes are provided in the upper deck and the lower deck. Since it simply penetrates the upper and lower wall surfaces, water that has fallen from the drain holes of the upper deck may be scattered in the space between the upper deck and the lower deck, and should be quickly discharged to the outside. Is difficult. Further, since the upper and lower drainage holes are formed at different positions, the rapid drainage action to the outside is further hindered.

[0005]

[Means for Solving the Problems]

 The present invention was devised in view of the actual situation of the above-mentioned conventional synthetic resin pallets, and vertical and horizontal beam members are erected on the horizontal deck member of the lower deck and the horizontal deck member of the upper deck that connect a plurality of columns, respectively. A pallet made of synthetic resin in which a fork insertion port is formed between the upper and lower horizontal rail members, and a projecting portion for enlarging the area of the upper surface is integrally formed on the upper outer peripheral edge of the upper deck. At the same time, a slender plate-shaped frame is provided upright around the upper end of the protrusion, and notches are formed in the corners of the frame along the circumferential direction. It is provided only on the lower surface of each of the upper and lower horizontal rail members, and a drainage hole is formed at a portion between the vertical and horizontal beam members of the upper and lower horizontal rail members. Surrounded by beam members and located below the fork slot above The horizontal beam member of the adeck is formed in a substantially trapezoidal cross section by a flat surface-shaped upper surface having the drain hole formed therethrough and flat surface inclined side surfaces connected to both side edges of the upper surface. It is characterized in that the connecting portion between the upper surface and both side surfaces is continuously connected.

According to the present invention having the above-mentioned structure, since the load placed on the upper deck is held by the frame body, the load can be stably supported and prevented from being accidentally dropped from the upper deck. . In addition, when a different pallet is placed on the upper deck whose area is almost the same as the lower deck due to the presence of the frame, the frame allows easy and reliable positioning of the upper pallet. Since lateral displacement is prevented, stable stacking is possible. Moreover, since the corner portion of the upper part is absorbed by the notch portion of the corner portion, it is possible to stack even a wooden pallet with a right angle corner.

[0007] Furthermore, when rainwater or the like blocked by a frame that is erected on a projecting portion formed on the outer peripheral edge on the upper deck, flows into each drain hole of each horizontal rail member, Then, it flows downward while being guided along the opposing inner surfaces of the vertical and horizontal beam members surrounding the lower part of the drainage hole. Then, the water is further guided to the drainage holes of the lower deck, and is immediately discharged to the outside while being guided as it is to the inner surfaces of the vertical deck members of the lower deck that face the lower portions of the drainage holes. Therefore, it is possible to sufficiently prevent rainwater and the like from collecting on the upper surfaces of the upper deck and the lower deck.

Further, the horizontal rail member of the lower deck is formed into a substantially trapezoidal cross section by the flat upper surface and the both side surfaces of the flat surface inclined, and the connecting portion between the upper surface and both side surfaces is continuously formed. Due to the connection, both inner and outer side surfaces of the cross rail member are gently inclined, and the continuity of the connecting portions improves the insertability of the fork claws, and the hand truck for pallet transfer is The wheel can smoothly pass over the cross rail member. Therefore, the work of moving the truck in and out becomes extremely easy.

In addition, the trapezoidal shape of the horizontal rail member causes the water that has dropped from the upper drainage hole to drop downward from the upper drainage hole, and also shifts from the lower drainage hole. Even if it adheres to the horizontal rail member, the drainage can be quickly guided downward along both side surfaces of the horizontal rail member, so that the drainage water is guided to the upper surface of the lower deck in cooperation with the action of the vertical and horizontal beam members. The accumulation of water can be prevented more effectively.

[0010]

[Embodiment of the invention]

 The synthetic resin pallet according to the present invention, as shown in FIGS. 1 to 6, has a square lower deck 1 having the same area as a general standard wooden pallet, four corners of the lower deck 1 and its four corners. Nine hollow pillars 2a to 2i erected at respective central positions on the sides and diagonals, and a square upper deck 3 provided on the pillars 2a to 2i and having an upper surface 4 formed flat. Each of the columns 2a to 2i has upper and lower divided substantially central portions integrally joined by welding, and each pair of fork insertion ports of a forklift is provided between the columns 2a to 2h adjacent to each other. 5, 5, 6, 6, ... Are formed in four directions.

As shown in FIG. 2, the lower deck 1 includes frame-shaped horizontal rail members 7A to F connecting the columns 2a to 2i, and four squares surrounded by the horizontal rail members 7A to F. It consists of a space section 8 ... The horizontal rail members 7A to 7F have a lattice shape, and a plurality of rectangular drainage holes 7c are formed between the vertical and horizontal beam members 7a and 7b. Further, the drainage holes 7c ... Have a shape in which the lower part thereof is surrounded by vertical and horizontal beam members 7a and 7b vertically formed in the vertical direction.

Further, among the horizontal rail members 7A to 7F, three horizontal rail members 7A, 7B, 7C are arranged in parallel in the horizontal direction in the figure with the support pillars 2g, 2i, 2b at the center in the horizontal direction in FIG. Has a trapezoidal cross section, as shown in FIG. That is, the drainage hole 7c is formed in a substantially trapezoidal cross section by the flat upper surface 7d having a plurality of penetrating holes and the flat inclined side surfaces 7e, 7e connected to both side edges of the upper surface 7d. . Further, the connecting portions 7f, 7f between the upper surface 7d of the trapezoidal cross rail members 7A, 7B, 7C and the inclined side surfaces 7e, 7e are formed in an arc surface shape, and the upper surface 7d and the side surfaces 7e are formed. , 7e are continuously connected.

Further, a plurality of rubber grommets 9 ... Which prevent slippage between the pallet and the ground contact surface or the lower pallet at the time of stacking are fitted to predetermined portions of the cross rail members 7A to 7F. Furthermore, the lower surface of the lower deck 1 in the vertical direction of the horizontal rail members 7A to 7F, that is, the horizontal rail members 7D, 7D, 7F, 7F and the vertical rails where the left and right insertion ports 6, 6, 6, 6 in the drawing are located. As shown in FIG. 4, a pair of elongated notch grooves 10 and 10 are formed on the lower surfaces of the horizontal cross members 7E and 7E at the center of the direction. The notch grooves 10 and 10 allow the load to be placed on the upper surface of the upper deck 3. Through the fixing band to be fixed, cutting by friction with the grounding surface of the fixing band is prevented, and it is used for position detection when using such a pallet in an automatic warehouse.

Each of the struts 2a to 2i has a substantially circular cross section, but the struts 2a, 2c, 2f, and 2h on both end sides have an inner peripheral surface for improving the guideability of the fork insertion. The radius of curvature is partially set to be slightly bulged inward, and the outer surface of each of the eight columns 2a to 2h located outside is for attaching a display label or the like. It is formed in a flat shape for engraving characters or the like. The space between adjacent columns 2a to 2i is set to be slightly larger on the horizontal direction side than on the vertical direction side in FIG. 2, so that the opening areas of the insertion ports 5, 6 ... The lateral sides 5 and 5 are formed slightly larger than the lateral sides 5 and 5.

As shown in FIGS. 1 and 5, the upper deck 3 has a similar horizontal rail member 11 formed on the upper surface 4 at a position corresponding to the lower deck horizontal rail members 7A to 7F. Further, on the outer periphery of the upper surface 4, as shown in FIGS. 1 to 4, the protruding portions 12 for enlarging the area of the upper surface 4 by setting the peripheral lengths to be slightly longer than the peripheral lengths of the lower deck 1. Is formed. The protrusion 12 has a plurality of substantially triangular reinforcing ribs 13 provided on the lower surface at equal intervals in the longitudinal direction, each corner 12a is formed in an arc shape, and further has a slender plate shape in the upper end circumferential direction. The four frame bodies 14 ... Are vertically erected. Each of the frame bodies 14 has four convex portions 15 integrally formed at predetermined upper end positions, and notches 14a are formed near the corner portions 12a along the corner portion 12a. Are formed respectively. As shown in FIGS. 5 and 6, each of the horizontal rail members 11 is composed of vertical and horizontal beam members 11a and 11b as in the lower deck 1, and a plurality of rectangular shapes are provided between the vertical and horizontal beam members 11a and 11b. Drain holes 11c ... Are formed.

Further, each drainage hole 11c has a lower portion surrounded by vertical and horizontal beam members 11a and 11b vertically formed in the vertical direction.

At a predetermined position of the upper deck 3, a plurality of rubber grommets 16 having upper and lower ends penetrating the deck board for slip prevention are provided. Further, a plurality of reinforcing protrusions 18 ... Are formed at predetermined intervals on the inner surface of the convex portion 15 of the frame body 14.

Therefore, according to this embodiment, since the outer peripheral edge of the lower end of the load placed on the upper surface 4 of the upper deck 3 is held by the frame body 14, the load can be stably supported, Inadvertent dropping from the upper deck upper surface 4 is reliably prevented. Further, when the pallets are stacked and stored when not in use, the outer peripheral surface of the lower deck 1 of the upper synthetic resin pallet having the same shape is regulated by the frame 14 ... The operation is easy and reliable, and lateral displacement during stacking is prevented, so stable stacking is possible. Moreover, since the lower deck corner portions 1a of the upper pallet can be absorbed by the cutout portions 14a, it is possible to stack even the wooden pallets having the corner portions 1a. Further, since the lower deck corners 1a of the upper pallet are supported by the cutouts 14a of the frame 14, the edges are supported together with the support of the frame 14 to further stabilize the stacked state. improves.

Further, since the convex portions 15 are formed on the frame bodies 14 ... Even if, for example, luggage slides on the upper deck upper surface 4 and collides with the frame bodies 14 including the convex portions 15, the luggage is accidentally dropped. In addition, the frame 14 is deformed outward by the notch 14a and absorbs the collision force thereof, that is, it controls the cushioning action, so that damage to the luggage and the frame itself is sufficiently prevented.

Further, since the corner portion 12a of the protruding portion 12 is formed in an arc shape, when the pallets collide with each other, the concentrated impact force on the corner portion 12a and the mating pallet is alleviated, and cracks or damages of both pallets occur. Is prevented.

By the way, when the pallet itself is moved to another place, the pallet may be stood and dragged as it is without using a forklift or the like. In this case, many scratches are made on the ground side surface of the pallet. There is a problem that the display label etc. is not only attached but also the corner part is broken. However, since the synthetic resin pallet of this embodiment is formed with the protrusion 12, the standing posture of the pallet cannot be maintained, and the dragging movement becomes difficult, and even if the dragging movement is performed, the protrusion is not formed. Since the contact of the side surface of the pallet with the ground is avoided by 12, it is possible to surely prevent the scratch and the break of the display label.

Furthermore, rainwater blocked by the frame body 14 erected on the protrusion 12 formed on the outer peripheral edge of the upper deck by the drain holes 11c of the upper deck 3 and the drain holes 7c of the lower deck 1. Etc. can be effectively discharged to the outside of the pallet. That is, since the vertical and horizontal beam members 7a, 7b, 11a, 11b are vertically formed downward so as to surround the drainage holes 7c, 11c, rainwater adhered to the upper surface of the upper deck 3 falls from the drainage holes 11c. Then, the vertical and horizontal beam members 11a and 11b are quickly guided downward along the inner surfaces facing each other. Then, as it is, it flows down toward the drainage hole 7c of the lower deck 1 and flows into the drainage hole 7c, and from there, it is guided further downward along the inner facing surfaces of the vertical and horizontal beam members 7a and 7b. Therefore, the drainage effect is improved and water is prevented from collecting on the upper surface of the upper deck 3 and the upper surface of the lower deck 1.

Moreover, even if the water dropped from the upper drainage hole 11c deviates from the lower drainage hole 7c and adheres to the upper surfaces of the horizontal rail members 7A, 7B, 7C of the lower deck 1, the trapezoidal inclined shape Since it is quickly guided downward along both side surfaces 7e, 7e, the accumulation of water on the upper surface of the lower deck can be prevented more reliably. In addition, rainwater and the like on the upper surface 4 can be promptly discharged by the notch 14a.

Furthermore, since the columns 2a to 2i are joined by welding, the rigidity of the entire pallet is improved as compared with the joining by fitting. As a result, the spans of the insertion ports 5, 6 ... Can be expanded as much as possible, the left and right forks of the forklift can be greatly expanded, and a stable pallet transport function can be obtained. No scaling operation is required.

Further, as described above, since the horizontal rail members 7A, 7B, 7C of the lower deck 1 are formed to have a substantially trapezoidal cross section, the insertability of the fork claws is improved and the wheel of the hand truck for moving the pallet is mounted. It is possible to smoothly cross over the cross rail members 7A, 7B, 7C. Therefore, the work of moving the truck in and out becomes extremely easy. In particular, since the upper surface 7d and both side surfaces 7e, 7e of the trapezoidal crosspiece members 7A to 7C are formed into a flat surface and the connecting portion 7f is continuous, the wheel of the truck is formed into one layer. It can be rolled smoothly, and the workability in and out can be improved.

The configuration in which the horizontal cross-section of the horizontal rail member of the lower deck 1 is trapezoidal is not limited to the horizontal rail members 7A, 7B and 7C, and may be applied to other 7D, 7E and 7F. It goes without saying that you can do it.

[0027]

[Effect of the invention]

 As is clear from the above description, according to the synthetic resin pallet of the present invention, since the upper deck upper surface has an area in which a lower deck of a different pallet can be placed, each pallet can be stacked. Of course, the frame provides easy positioning and stabilizing support for the upper pallet, as well as stabilizing support for the load. Moreover, since the notches are formed in the corners of the frame body, it is possible to stack even the wooden pallets with the corners at right angles, which is extremely practical.

Moreover, since the drain holes are formed in the lower deck and the upper deck, and the cutouts are provided in the vicinity of the corners of the frame body on the upper deck, rainwater adhering to the upper surface of the lower deck can be quickly and effectively discharged. .

In particular, since the vertical and horizontal beam members surrounding the lower portions of the drainage holes of both decks are provided vertically in the vertical direction, they are blocked by the frame body that is erected on the protruding portion formed on the outer peripheral edge of the upper deck upper portion. Rainwater, etc., flows into the drainage holes and is quickly guided downward along the opposing inner surfaces of the vertical and horizontal beam members. Therefore, the effect of draining rainwater and the like is further improved, and water can be prevented from collecting on the upper deck and the upper deck. In addition, even if water drops from the upper drainage hole and sticks to the lower deck even if it deviates from the lower drainage hole, it is promptly guided downward along the inclined surface of the cross rail member. Along with the guiding action of the facing inner surface of the vertical and horizontal beam members, the water discharging effect is further improved.

Further, since the horizontal rail member of the lower deck is formed to have a substantially trapezoidal cross section by the flat upper surface having the drainage holes and both side surfaces, the connecting portions of the both are continuously connected. For example, the wheels of a hand truck for moving pallets are guided smoothly up and down, which makes it extremely easy to move in and out.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a synthetic resin pallet according to the present invention.

FIG. 2 is a bottom view of the embodiment.

FIG. 3 is a view on arrow X in FIG.

FIG. 4 is a view on arrow Y of FIG.

FIG. 5 is a sectional view taken along line AA of FIG. 1;

6 is a cross-sectional view taken along the line BB of FIG.

7 is a cross-sectional view taken along the line CC of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lower deck 2a-2i ... Strut 3 ... Upper deck 4 ... Upper surface 5,6 ... Fork insertion slot 7A-F / 11 ... Horizontal cross member 7a, 7b ... Vertical horizontal beam member 7c ... Drainage hole 7d ... ... Connection site 11a. Reference numeral 11b ... Vertical and horizontal beam members 11c ... Drainage holes 12 ... Projection portion 12a ... Corner portion 14 ... Frame body 14a ... Notch portion

Claims (1)

[Utility model registration claims] 1. Vertical and horizontal beam members are respectively erected on the horizontal rail member of the lower deck and the horizontal rail member of the upper deck that connect a plurality of columns, and a fork insertion port is provided between the upper and lower horizontal rail members. A synthetic resin pallet formed by integrally forming a projecting portion for enlarging the area of the upper surface on the outer peripheral edge of the upper portion of the upper deck, and standing a slender plate-shaped frame body in the upper circumferential direction of the projecting portion. Notches are formed along the circumferential direction at the corners of the frame, and the vertical and horizontal beam members are hung vertically only on the lower surfaces of the upper and lower horizontal rail members, respectively. A drainage hole is formed in a portion of the horizontal rail member located between the vertical and horizontal beam members, the lower portion of each drainage hole is surrounded by the vertical and horizontal beam members, and the horizontal side of the lower deck located under the fork insertion port. Place the cross member on a flat surface with the drainage hole formed through it. And a flat surface inclined side surface connected to both side edges of the upper surface to form a substantially trapezoidal cross section, and a connecting portion between the upper surface and the both side surfaces is continuously connected. Resin pallet.