JPH06504249A - paper loading pallet - Google Patents

Abstract

The device is a pallet as might be used to support cargo during that cargo's transportation or storage. The pallet is constructed of paper. The pallet design involves a central platform or deck (402) constructed of a honeycomb filler bounded on the top and bottom surfaces by corrugated sheets (404, 408). To enhance the torsional and deflective strength of the central platform, the corrugated sheets are positioned so that the corrugations are not parallel. Additionally, the corrugated sheets may be folded over the edges (410, 412, 414) of the honeycomb core and fastened to the other side. Runners or legs (406) may be included to support the central platform.

Description

[Detailed description of the invention] paper loading pallet Related applications This application is filed under U.S. Patent Application No. 07/635, filed December 26, 1990. This is a partial continuation application of No. 195 “Pallet design using paper materials” and its contents (or Incorporated into this application by notice.

field of invention The invention relates to a nozzle for supporting a load during transport or storage. It is. The pallet is made of paper. Pallet design uses corrugated sheet force (center) ＼Platform or de, Tsuki that came out of Necam filler from above and below (Masamiko) It has become such a powerful force. Strong distortion and deflection of the central platform The corrugated sheet is placed so that the corrugations are not parallel to each other in order to increase the degree of vibration. difference This corrugated sheet is folded at the end of the honeycomb core and fixed on the opposite side. Runners and legs may be added to support Moyo LN0 Nakao's platform.

Background of the invention Pallets are used to collect, store, stack, and handle products as one unit. A portable, horizontal, rigid platform used as the base of a

Pallets are usually made of wood and are made up of several boards (also known as "deck"). a rigid board (known as a "vertical") that connects several pieces at the ends 1 It is made by attaching it with a gargle or nails. Upper deck and lower deck Between the decks of I can make the X part stronger. This space can be used for forklifts and hand trucks. It will be done. The pallet is thus It is possible to move from one place to another.

Although the majority of palé sotos used in the United States are made of wood, Lent can have many inconveniences. Labor and material costs for making wooden pallets (´!in It increased faster than FR. Because of this cost, pallets are often reused or It even returns to the place where it came from. The cost of returning empty pallets to their owners is clearly high. Furthermore, the average weight of a wooden pallet is approximately 40 pounds. Freight charges are usually Loading costs increase by the weight of the pallet because it is added to the weight of the goods being shipped.

In fact, the pallets are so heavy that a small warehouse worker manually lifts them. It is difficult to move it. Wooden pallets often break during use and the pallet Considering the price of the item, it is better to repair it if possible, or else it will be disposed of. Ru. Depending on the type of industry, products may be disposed of after two or four uses. Broken Disposal of solid materials, including ballast, is becoming an increasingly difficult and expensive problem. be.

The invention is a pallet made of paper, which has a central plate made of honeycomb filler. The platform or deck is sandwiched between the top and bottom by corrugated sheets. Ru. Corrugated sheet to increase the deflection and distortion strength of the central plant form Make sure that the corrugations or vertical grooves are not parallel! It will be destroyed. In addition, the corrugated sheet You can also fold it in at the end of the Nekam core and fix it on the opposite side. central platform Runners or legs may be added to support the form. original strength, cost In addition to being cheap, the pallets of the present invention are also more economical to transport manufacturing materials. The invention allows for complete reuse as paper without having to be disassembled into individual parts.

There are many pallet designs made of paper.

For example, U.S. Patent No. 3.661.099 to 5hefor is Then, on the core part of the deck, a single, double or triple layer made by gluing the sides together with glue is attached. It uses corrugated cardboard sheets cut into thin pieces. The corrugated sheet is It is glued at the vertical edge of the core. The core and the sheet facing it are waves. It is desirable to have the same dimensions as the shaped sheet, for example rAJ groove size. / Comb/Soto The legs look like wooden blocks.

5helor says that the grooves of the facing sheets are parallel, but other than that It does not mention any other shape related to it.

Tucker, U.S. Pat. No. 3,650,459, provides a fold It is a paper pallet design using soldered corrugated sheets. The cargo is made of polystyrene. Multiple pallet feet (within the loading deck) made of release plastic material such as A spacer block is used. The part that supports the load It is not stated whether Nekamkoa is used or not.

U.S. Pat. No. 3,952,672 to Gordon et al. It is a disposable pallet. If a honeycomb core is used to support the load, is not specified.

Sm1th U.S. Patents 4.867.074 and 5.001.991, respectively. , folded from the waveform sort, and many keys combined with a series of crosshairs. The design is such that a loading deck can be built. Honeycomb core for supporting part of cargo It is not clear whether it is used.

In Webb's U.S. Pat. No. 4,790,249, the loading deck has a special design. It is made up of facing sheets separated by many blocks with ridges. Block The design is made of fibrous material glued with a binder (such as uric acid formaldehyde). It is made of the same material and has a box-like shape that protrudes from all sides. The box is fo -It is placed in a position that protects Detsuki from inside Clift.

Dutch patent application 83-00024 is a paper pallet with an interesting design.

Load-supporting decks are installed at various locations and around the deck, just as they border the deck. It appears to be made of paper loops glued into shapes. Honeycomb core No mention is made of corrugated sheets on loading decks.

Few examples state that honeycomb material is used in the core of load-supporting decks. do not have.

Specifically, Green et al., UK Patent Application Publication No. 2.213.462- - example. In this published application, the loading deck is made of both materials such as corrugated cardboard. It also has an open structure with a face sheet and a paper or cardboard honeycomb in between. It has a palette design. Detsuki is a foot or similar structure. It says that you can use something to lift it off the floor. The core of Detsuki is a fork. It can be penetrated at the end of the lift. Corrugated sheet on the other side of the core , so that the vertical grooves are not parallel! There is no suggestion that it will. Furthermore, the center It is also not explicitly stated that the waveform sort should be folded at one end of the frame and fixed at the other end. stomach.

Moog U.S. Patent No. 4.319.530 describes a package that is described as disposable. The load support part is made of a honeycomb central core made of laminated corrugations. Ru. The core faces one or more corrugated sheets glued to it. Ru. The surface of the central core facing the load-bearing surface is made of layers of corrugated sheets of polyester. Maybe it is. These facing multi-layered sheets are ``waveforms of different sheets''. It is said that they can be replaced because they create "orthogonal stacking" where the layers are placed at right angles. However, it is useful to place the corrugated sheets on both sides of the core so that the corrugations are not parallel. I'm not saying it's beneficial. Additionally, fold the corrugated sheet at the edge of the core. You can't fix it on the other side, much less from a folded notebook like this. There is no mention of profits.

In all of the above cases, the top and bottom are sandwiched between corrugated sheets, and are made with NECAM filler. Disclose a paper pallet containing a central platform or deck If not, carefully cut the corrugated sheet so that the corrugations or vertical grooves on the opposite sheet (to prevent twisting and deflection of the central platform) It also does not disclose features that increase strength.

Brief description of the drawing FIG. 1 is an exploded view of the basic configuration of an embodiment of the present invention.

FIG. 2 is an exploded view of another embodiment of the present invention.

Figure 3 shows an example of using runners instead of feet to support the loading deck. It is a diagram.

FIG. 4 is an exploded view of yet another embodiment.

Figure 5 is a perspective view of a four-sided entry pallet made vertically according to the present invention. Generally, the invention relates to a package used to support a load during transportation or storage. It is Rhett. Pallets are made of paper. The design of the pallet requires The central plant floor is made of filler and is sandwiched between top and bottom corrugated sheets. Contains ohms. Determine the distortion and deflection strength of the central platform. To increase the height, the corrugated sheet is placed so that the corrugations are not parallel. In addition, waves The shaped sheet may be folded at the end of the honeycomb core and fixed on the opposite side. . Runners or legs, especially with honeycomb or corrugated core and corrugated skin so that the skin overlaps the edges of the central platform. Modifications may be added to support the central platform.

Although this invention can be made using a variety of materials, it does not require commercially available technology. Preferably, the pallets are made from materials that can be easily reused. For example, many It is preferable that the material for the sheet is kraft paper or similar paper. Of course, I found out Depending on the application, other materials may be used, such as MYLAR, polyethylene, polypropylene, etc. It may also be lopylene (a transparent or fibrous paper product) or similar.

Certain thermosetting polymeric materials are not currently widely reused; From this point of view, it may not be the best material for pallets. However However, it is clear that pallet design can be improved even when using non-recyclable materials. It is clear. The selection of materials and the way the various parts of the pallet are connected are also based on reusability. You can use most water-based glues, such as glue or rubber glue. are glues that are compatible with the kraft paper recycling process. Hydraulic materials such as polypropylene Sealing thermoplastic materials are advantageous because they do not use adhesives.

FIG. 1 is an exploded view showing the basic configuration of this invention. In this configuration, the central The core (100) of is made of foamed honeycomb material. There are two Two seas 1-(102, 104) are connected facing each other. these two pairs If the face sheet is properly connected to the core, the cells inside the core will be independent of each other. Become a state. The strength of the core thus forms a closed cell, giving it elasticity and shock absorption ability. Enhanced by distributing it to the core.

Facing: / - It is attached to (102, 104), but the two waveform sort ( 106, 108). The vertical grooves of each corrugated sheet are sea 1-(106 ) is drawn so that the grooves in the notebook (108) are not parallel to each other. very real In the case of commercial pallets, the advantages of strength, versatility, and ease of assembly make them The angle between the grooves is preferably about 90°, but the angle between the individual grooves is about 30° and 90°. It will be between ゜.

Attached to the outer edge of the grooved corrugated sheet (106, 108) is a sheet The root is (110, 112).

Obviously, the facing sheet (104), the corrugated sheet (108) and the sheet (112) Combination, facing sheet (102), corrugated sheet (106) and sheet (110) Combinations of commonly available commercially available products may be used in the present invention.

This invention is not limited to the basic format shown in FIG. for a specific purpose When additional strength is required for You may increase the number of points. In that case, the seat should be placed on the top side (or the side that supports the luggage). It is better to add it to increase the impact resistance of the pallet deck.

As will be explained later, when making a practical pallet, it is desirable to add runners and legs. However, the basic structure of this invention is shown in FIG.

The pallet may be coated with a substance that makes it hard, waterproof, and protects it from flaking. stomach. These materials should be selected to meet standards suitable for pallet use. for example , in damp environments, outdoors, or when moving between cold rooms and non-refrigerated areas. The water is delicious. Known water-based or oil-based substances can be used as necessary. Ru.

In addition, the loading surface of the deck may be covered with a suitable material or painted to prevent the cargo from slipping. .

FIG. 2 is an exploded view of a variation of the invention. Figure 1 shows the basic combination, Figure 2 This variation uses a honeycomb core (200). Lower sheet (2 02) is a combination of corrugated sheet stock (sheet 102 in FIG. 1, corrugated sheet 10 6, the same combination as the sheet 110). It is Honeycomb Core (200) It is approximately the same size as the bottom surface. The upper sheet (204) is the edge of the honeycomb core (200) It is folded in such a way that it overlaps and is fixed to the seat below (202). There is. As in the variation of Figure 1, the grooves in the upper sheet (204) are in the lower sheet. It is not parallel to the waveform grooves of the grooves (202). Attach to the bottom sheet (20) with adhesive. In addition to having tabs (206) that are attached to the pallet, this feature Helps increase the strength of the latform.

Furthermore, the pallet may be provided with a foot of the structure shown in FIG. The legs are Center block (208) made of the same honeycomb material as the core (200). may be provided. If desired, the corrugated sheet may be fabricated by prefabricating. Sen The tar block is folded as shown in (212) to form a foot (214). It is covered with a skin layer of corrugated material (210) with many tabs that are glued together.

Referring to Figure 2, the foot (214) has tabs that connect the core (200). ), a top sheet (204), and a bottom sheet (202). It is fixed to the outside corner of the deck with adhesive. Of course, there is a foot in the center of the deck side. The two extension tabs are not necessary if you want to install the One is enough. product It would be nice to have feet and tabs around the outside of the load support deck. I mean, If this happens, the teeth of the forklift will be in the wrong position and the foot will come off the deck. This is because it prevents

FIG. 3 shows a pallet made according to the invention. Top seam of corrugated sheet It is made of Tompudenoki covered with To (302). That's expansion No. 1 Nekamu Core (304) and an adhesive lower skin layer (300) also made of corrugated sheet. It is equipped with The runner (308) is a corrugated tread that surrounds a portion of the foam honeycomb core. It is made of Ray (310). The runner (308) is the lower skin layer (306) It is fixed with adhesive. The runner can be attached to the top using the tab (314). It is firmly attached to Bree.

Figure 3 is a design known as a two-way entry pallet. loading deck The wide miso between the lower runners can be transported by forklift or by hand. This is so that the car's teeth can be inserted from either side.

When the pallet of this invention is used in conjunction with a roller conveyor device, the runner A stiff cardboard (316) may be attached to the bottom of the lei (310). The cardboard is Typical 1/4 or 172 inch thickness provides a solid surface on the runner It was made by gluing and compressing many thin sheets of paper. it's a hard surface and prevent the corrugated tray from being pushed down around the conveyor rollers. come and prevent the pallets on which you place your luggage from rolling off the conveyor. be able to. Stiff cardboard provides adequate stiffness to reduce compressibility at the bottom of the runner. This reduces pallet drag.

Figure 4 shows the Balinese/Kun of the palette in Figure 3, but here the lower waveform The seat is integrated into the runner tray to increase the overall strength of the runner.

In this varienoyon, on the deck, the extended no \necam core (402) and the top of the waveform The surface (404) is included. The runner and its associated lower deck are in Expansion 1. 1 Necum or multi-laminated corrugated runner core (406) and lower folded corrugation It is made up of a combination of sheets (408). The corrugated folded sheet (408) below is It is attached to and surrounds the runner core block (406). Also, there It also has a tab (410), which can be folded up and the top corrugated surface (404) can be attached to the surface of the cargo (or on top of it). Similarly, the upper waveform surface (404) is It is attached to the honeycomb core (402) using an adhesive, glue, or solvent. Also, There, there is a tab (414) that can be folded under the runner core block (406). and a foldable tab (414) under the honeycomb core (402). . Obviously the runner will not leave the deck unless the valent is completely destroyed.

FIG. 5 is a four-sided pallet made in accordance with the present invention. Bali Niichi mentioned so far Like Yong, this deck consists of upper and lower skin layers surrounding a honeycomb core. The loading decks (502) that have arrived are integrated. Detsuki's legs are casually lined up (504 ), and each leg has a cassette (cassette) that extends to the edge of the loading deck. I'm there. When the legs are arranged as shown in this diagram, the teeth of a forklift or hand truck will from any direction (into the groove marked by the X and Y directions) under the loading deck. I can come.

cold twist In this example, the strength of the pallet deck made according to the present invention will be improved using other methods. I will prove it by comparing it with Detsuki. In this example, a series of pallet decks are It is made with a cannon honeycomb as its core. Industrial rubber approved by FDA for food use Glue was used to attach the core to the core. Each core is approximately 4 feet in length and width. be. The core is a 1.5 inch thick foam honeycomb. Arranged in 5 inch cells 33 pound paper.

The first deck (Deck A) is made of high quality paper, such as 42 pound kraft paper, as a core. I used it for the top and bottom skin layers. The ends of the core are not covered with paper.

The second two identical decks (Decks B and C) have their skins parallel to each other. 200 lb test corrugation). The skin is ha I glued it to Nekamkoa. The ends of the core are uncovered.

The fourth deck (Detsuki D) has a wavy skin with each miso at a right angle. It was made using the same method as Detsuki C. The ends of the core are uncovered. This detsu Item 1 is related to the present invention.

The second deck (Deck E) is also the same as Deck D (made according to the invention, but with one The difference is that one of the skins is wrapped around the end of the core and the other skin is wrapped around the edge of the core. This is the point where the glue was applied.

Each deck is attached to a test stand. About two feet of that deck It was sticking out from the edge of the table. Securely clip the edge of the deck on the stand to the stand. I got kicked. Add more weight to the edge that overhangs the floor so that the deck folds at the edge of the platform. I tried to maintain a 15° bend. The miso is parallel with the wavy skin. Two decks (Decks B and C) were tested. Place the miso vertically or flatly on the edge of the stand. I was on my way.

The results of the test are shown in the table below.

table Detsuki skin type parallel grooves? End cover? Weight at breakage A Paper - No. 26 B Waveform Yes No 90* C waveform Y e s N O72* *D waveform No No 81 E Waveform No Yes 88 ＊ Vertical groove tested parallel to the edge of the table ** Vertical groove tested perpendicular to the edge of the table Comparing the weights of decks B and C when broken, these same decks are There is important variation in the level at failure as a function of Two decks D of the present invention and E was stronger than the weak direction of Detsuki B and C, respectively. And with the deck E of the present invention The covered end is just as strong as the deck at the uncovered end. It was strength.

The present invention has been described by way of explanation and examples. The examples are only examples, and in any case shall not be used to limit the scope of the invention. Furthermore, the technical aspects of the present invention A person of ordinary skill in the art would recognize that disclosure is not necessarily within the scope of the claims. Modifications and equivalents may be perceived within the scope of the invention.

international search report Continuation of front page (81) Designated countries EP (AT, BE, CH, DE.

DK, ES, FR, GB, GR, IT, LU, MC, NL, SE), AT, AU, BB, BG, BR, CA, CH, DE, DK, ES, FI , GB, HU, JP, KP, KR, LK, LU, MG, MW, NL, No , R.O.

RU, SD, SE, US

Claims (18)

[Claims] 1. a deck of honeycomb core having an upper surface, a lower surface and an end; the top of said honeycomb core; Upper and lower facing sheets attached to the top and bottom surfaces respectively; grooved top and bottom facing sheets Use the upper and lower corrugated sheets attached to each groove to prevent the upper and lower grooves from being parallel to each other. and the upper and lower sheets attached to the upper and lower corrugated sheets, respectively. A palette that features: 2. One or more honeycomb cores, upper and lower facing sheets, upper and lower corrugated sheets , and the composition of the upper and lower sheets is paper, MYLAR, polyethylene, polypropylene. A pallet according to claim 1, selected from lopylene (a transparent or fibrous paper product). 3. One or more honeycomb cores, upper and lower facing sheets, upper and lower corrugated sheets , and the composition of the upper and lower sheets is selected from paper. 4. Top facing sheet, top corrugated sheet, combination of top sheets, or bottom facing sheet At least one combination of the sheet, the lower corrugated sheet, and the lower sheet is Claim 1, wherein the honeycomb core is folded and adheres to the edge of the honeycomb core as well as to the sheet on the opposite side. palette. 5. The honeycomb core adheres to the facing sheet, and a large portion of the cells in the honeycomb core are 2. The pallet according to claim 1, wherein the portion of the pallet is sealed. 6. The deck may include additional corrugated sheets attached to one or more upper and lower sheets. 2. The pallet of claim 1, further comprising: 7. Claims also include two or more runners adhesively attached to the deck Palette described in 1. 8. 8. The pallet of claim 7, wherein said runner comprises a honeycomb runner core. . 9. The honeycomb runner core is substantially attached to a runner tray having an outer skin layer. 9. A pallet according to claim 8, surrounded by. 10. Some portions of the outer skin layer of one or more runners 10. The pallet of claim 9, wherein the pallet is attached to the edge of the mucoa. 11. Claims also include four or more feet adhesively attached to the deck Palette described in 1. 12. 12. The pallet of claim 11, wherein said foot is comprised of a honeycomb core. 13. the honeycomb core foot core being substantially surrounded by an outer skin layer of the foot; 13. The pallet according to claim 12. 14. The foot outer skin layer of one or more feet is attached to the edge of the honeycomb core. 14. The pallet according to claim 13, wherein the pallet is attached. 15. A deck of expanded paper honeycomb cores with a top surface, a bottom surface, and edges; Upper and lower facing sheets attached to the upper and lower surfaces of the mucoa; The upper and lower grooves are attached to each other and are arranged so that the upper and lower grooves are not parallel to each other. corrugated sheet; and the upper and lower corrugated sheets attached to each other. , the upper facing sheet, the upper corrugated sheet, the combination of upper sheets, or the lower facing sheet. At least one combination of the sheet, the lower corrugated sheet, and the lower sheet is , fold over each other, and adhere to the edge of the honeycomb core as well as the opposite sheet. , featuring a paper pallet. 16. The honeycomb core is attached to the facing sheet, and the cells in the honeycomb core are 16. The pallet of claim 15, wherein a large portion of the pallet is sealed. 17. and two or more runners adhesively attached to said deck. 16. The pallet of claim 15, comprising: 18. including four or more feet adhesively attached to said deck. The pallet according to claim 15.