WO2023182505A1

WO2023182505A1 - Assembly pallet and leg member for assembly pallet, and transport system and method using assembly pallet and leg member

Info

Publication number: WO2023182505A1
Application number: PCT/JP2023/011877
Authority: WO
Inventors: 政人小村; 真生友國
Original assignee: オーパーツ株式会社
Priority date: 2022-03-25
Filing date: 2023-03-24
Publication date: 2023-09-28

Abstract

Provided are: an assembly pallet system having a low environmental load; a leg member that configures said assembly pallet system; and a conveyance system and a conveyance method that utilize said assembly pallet system. The assembly pallet system having a low environmental load is configured by combining a member suited for reuse and a member suited for recycling. This combination makes it possible to freely configure various types of assembly pallets.

Description

Assembled pallet, leg members for assembled pallet, and transportation system and method using them

The present invention relates to an assembled pallet, a leg member for an assembled pallet, and a transportation system and method using the same. The present invention particularly relates to reuse and recycling.

In recent years, from the perspective of SDGs (Sustainable Development Goals), the three R's of Reduce, Reuse, and Recycle have been emphasized. There is. In particular, the Act on Promotion of Resource Circulation Related to Plastics, which will come into effect on April 1, 2020, requires measures such as the long-term use of plastic-based products, and the suppression and recycling of plastic-based product waste. (Article 4 of the same law). Specifically, in the announced design guidelines for products using plastics, products using plastics are designed to have increased strength, wear resistance, weather resistance, etc., to enable long-term use, and to allow for easy repair if the product breaks. is required. There is a desire to reuse plastic products (and their parts), and it is expected that reuse and recycling will be promoted if each part can be made from a single material. To this end, it is desirable not only to be able to easily disassemble and separate each component, but also to require a small number of steps. In addition, it is desirable to have a design that takes into account the weight, size, shape, and structure that will facilitate the collection and transportation of disassembled parts.

In addition, in logistics, handling of items other than transported items, such as packaging materials, has become a problem. Many of these items have low durability and are difficult to repeat over and over again, and some are destroyed when the transported object is taken out and cannot be reused. For example, cargo handling pallets such as cargo handling platforms on which objects to be transported are placed generally have low durability, and transportation companies rarely take them home for reuse. Further, when storing objects to be transported, they are sometimes held together as a mounting table, but after the objects are used, they have no choice but to be discarded. Plastic pallets are useful as pallets for cargo handling, but compared to wooden pallets, they are safer because they do not have nails sticking out or cracking, they are cleanable and hygienic because they do not grow mold or insects, and they do not generate wood chips. The advantage is that the working environment is improved without any problems, and the weight can be reduced due to the rib structure. In addition, the dimensions, mass, strength, and physical properties are uniform and stable, but if a part breaks, it is difficult to repair it by replacing parts. And it can be recycled.

Until now, in order to provide eco-friendly, lightweight, and inexpensive cargo handling pallets, we have been using plant fibers such as thatch and reed, which are environmentally friendly and unused resources, to make the flat plates, support bases, and reinforcing girders of the cargo handling pallets into one piece. An eco-pallet has been proposed that is formed and solidified, has a thin wall structure, has a shell structure, and has multi-point support to maintain the required strength of a cargo handling pallet (for example, Patent Document 1). However, because it is integral, it has low versatility and is considered difficult to reuse, and must be discarded after use, which is not necessarily environmentally friendly.

For example, if it is an assembled pallet for cargo handling, it is expected that waste can be reduced by assembling it as needed. In particular, it seems preferable to have fewer types of parts. For example, a top plate is formed by combining two corrugated sheets, a bottom plate is formed using two corrugated sheets, the upper end of the paper tube is received in the circular opening of the corrugated sheet of the top plate 11, and the bottom plate is It is disclosed that a pallet is assembled by receiving the lower end of a paper tube in a corrugated cardboard sheet (for example, Patent Document 2). However, since the paper tube is pasted with an adhesive or the like, it ends up being a single piece, and it is not easy to reuse it. Furthermore, it cannot be said that disassembling it into parts is easy.

In addition, by dividing the pallet into three elements: the flat plate, the support base, and the reinforcing girder, and assigning the functions of the pallet to each element, it is possible to easily select the most suitable materials and structure according to the purpose of use and load of the pallet. A closing pallet has been disclosed (for example, Patent Document 3). However, since each element is fixed with double-sided adhesive tape, not only is the mechanical strength inferior, but it is not necessarily preferable to disassemble and reuse each element. Furthermore, it cannot be said that disassembling it into parts is easy.

In addition, the upper plate has a plurality of through holes and a plurality of fitting grooves formed surrounding each of the through holes, the through hole is bored at the center position, and the bottom surface has a fitting groove for the upper plate. A plurality of fitting members each having a fitting leg formed at a position corresponding to the groove and fitting into the fitting groove, and a fitting member whose upper end surface abuts the fitting groove of the upper plate and is fitted into the fitting groove. A shaft that has a plurality of support tubes that support the joint legs, a protrusion formed on the upper surface that corresponds to the through hole of the support tube, and a threaded groove formed in the center of the protrusion along the axial direction from the upper end. a plurality of bottom legs formed by erecting columns; a plurality of bolts 5 whose one end passes through the through hole of the fitting member and the through hole of the upper plate and is screwed into the screw groove of the shaft column of the bottom leg; A palette configured by the following is disclosed (for example, Patent Document 4). In this way, it can be assembled, has high strength, and is manufactured by recycling discarded paper, plastic, wood, metal, etc., which reduces manufacturing costs and eliminates the need to dispose of pallets. Although it has the advantage that materials can be recycled and reused, it has many components and is complex to assemble. Furthermore, it cannot be said that disassembling it into parts is easy.

Further, the assembly type pallet has a plurality of legs and a loading plate on which the legs are detachably provided, the legs including a script body and an end portion of the script body that protrudes outward from the periphery of the base body. The load plate has a first plate-like body formed with at least an opening through which the flange part of the leg is inserted, and a second plate-like body laminated on the first plate-like body. a plate-like body, and the flange portion formed between the first plate-like body and the second plate-like body and inserted into the opening of the first plate-like body, along the plate surface of the second plate-like body. A pallet is disclosed that has an accommodation space that accommodates the flange portion after it has been moved (for example, Patent Document 5). Because of this structure, the legs are easy to attach and remove, and the legs do not come off even if hit by a fork, etc. However, the structure of the legs is complicated to ensure strength. It has become.

Japanese Patent Application Publication No. 2005-112461 Utility model registration No. 3147009 Japanese Patent Application Publication No. 2002-308271 Utility model registration No. 3194802 Japanese Patent Application Publication No. 2012-17124

However, even though it is made of materials with low environmental impact, the amount of waste should be reduced. On the other hand, some component parts are easy to reuse, while others are preferable to be returned to raw materials and recycled, but it is not always easy to separate these components. Furthermore, it is virtually impossible to easily configure various pallets for cargo handling depending on the intended use.

In view of the above-mentioned problems, the present invention distinguishes between parts suitable for reuse and parts suitable for recycling, and provides an assembly method that can configure a cargo handling pallet that can be assembled and disassembled respectively. We provide pallets and assembled pallet systems.

Specifically, we will provide the following:
(1) A first leg member having a hollow truncated cone shape with a large diameter end opening and a small diameter end opening, and a hollow truncated cone shape with a large diameter end opening and a small diameter end opening. an assembled pallet system comprising: a second leg member having: a first plate member supported by the first leg member and/or the second leg member; The small diameter end side of the member can be fitted by fitting from the large diameter end side opening of the second leg member, and the load in the conical axis direction of the first leg member or the second leg member is , from the outer surface of the side wall of the first leg member to the inner surface of the side wall of the second leg member, or from the inner surface of the side wall of the second leg member to the outer surface of the side wall of the first leg member. The outer and inner surfaces of each side wall are configured such that the first plate member communicates with the first leg member and/or the second leg member at at least one location on the plate surface thereof. A first assembled pallet can be constructed by being fixed to the large diameter end side of the first leg member or the small diameter end side of the second leg member, and the first assembled pallet is , can be disassembled into the first leg member, the second leg member, and the first plate member, and can be disassembled using the disassembled first leg member and the second leg member. It is possible to configure a second assembled pallet different from the first assembled pallet by using the first plate member or a second plate member of a different type, and in the assembly and disassembly described above, screws or bolts are removed. An assembly pallet system characterized by the fact that there is no need to use.
(2) The assembled pallet system according to any one of the above, wherein the first leg member and the second leg member have the same shape.
(3) An assembled pallet system according to any one of the above, characterized in that an engagement structure is provided on the small diameter end side of the first leg member, and an engagement structure is provided on the small diameter end side of the second leg member.
(4) Any of the above-mentioned assembled pallet systems includes an engagement member that can engage with the first leg member engagement structure and the second leg member engagement structure.
(5) The engagement member engages the engagement structure of the first leg member and/or the engagement structure of the second leg member by rotating and/or sliding in a direction substantially perpendicular to the conical axis. An assembled pallet system according to any of the above, characterized in that it is engageable and separable from the first leg engagement structure and/or the second leg engagement structure.
(6) The assembled pallet system according to any one of the above, wherein the engaging member includes a locking portion that supports rotation and/or movement in a direction substantially perpendicular to the conical axis.
(7) The assembled pallet system according to any one of the above, wherein the first leg member and the second leg member further include casters that can be fixed on the large diameter end side and the small diameter end side, respectively.
(8) The first plate member is a first plate member that is disassembled from at least one existing first assembly pallet and reused, or a first plate member made of recycled material. At least one of the first leg member and the second leg member is a first leg member and a second leg member that are disassembled from at least one existing first assembly pallet and reused. or at least one of a first leg member and a second leg member made of recycled material.
(9) A transport system comprising any of the assembled pallet systems described above, which is movable together with at least one of the plate member to be reused and/or the first leg member and the second leg member to be reused. a terminal; a supply section capable of providing at least one of a plate member made of a recycled material and/or a first leg member and a second leg member made of a recycled material as necessary; a loading terminal provided at a loading area where the cargo to be loaded is located; and an unloading terminal provided at the unloading area where the cargo is unloaded; The reuse terminal can receive a condition for a reuse member that meets the condition, where the reuse member is a plate member to be reused and/or the first leg member and the second leg member to be reused. The supply terminal may receive conditions for recycled parts that match configuration conditions of an assembled pallet that match the package information from the loading terminal, wherein the recycled parts are made from recycled materials. and/or at least one of a first leg member and a second leg member made of a recycled material, and the loading terminal includes information on conveying the reused member and/or the recycled member to the loading area. At the loading yard, an assembled pallet is assembled using the reused parts and/or the recycled parts, and the cargo is loaded thereon, and the reuse terminal is transported together with the assembled pallet loaded with the cargo, and A transportation system characterized by transmitting cargo information to an unloading terminal.
(10) A transportation method for transporting cargo using any of the above assembled pallet systems.
(11) A transport method for transporting cargo using any of the transport systems described above.
(12) Sending from the reuse terminal information on at least one of the plate member to be reused and/or the first leg member and the second leg member to be reused, and if necessary, the plate member made of recycled material and A step in which a supply unit provides at least one of a first leg member and a second leg member made of recycled materials; and a step in which information on recycled components is transmitted from a supply terminal provided in the supply unit. transporting the reused parts together with a reuse terminal to a loading area where there is cargo to be loaded, and transporting the recycled parts; assembling an assembled pallet using the reused parts and recycled parts at the loading area; loading cargo onto the assembly pallet; transmitting information about the cargo from the loading terminal; and receiving the information from an unloading terminal provided at the unloading area; and after unloading. , a step of disassembling the assembled pallet and causing the reuse terminal to transmit information regarding the cargo, reused parts, and recycled parts.

A first leg member having a hollow truncated conical shape with a large diameter end opening and a small diameter end opening; and a first leg member having a hollow truncated conical shape with a large diameter end opening and a small diameter end opening. 2 leg members, the small diameter end side of the first leg member can be fitted by fitting from the large diameter end side opening of the second leg member, At least a portion of the load in the conical axis direction of the first leg member or the second leg member is transferred from the outer surface of the side wall of the first leg member to the inner surface of the side wall of the second leg member, or An assembled pallet system, wherein the outer and inner surfaces of each side wall are configured to transmit information from the inner surface of the side wall of the second leg member to the outer surface of the side wall of the first leg member. Combination leg member for.
Any of the combination leg members described above may be characterized in that any of the first leg members described above and any of the second leg members described above have the same shape.
Any of the combination leg members described above includes an engagement structure on the small diameter end side of any of the first leg members mentioned above, and an engagement structure on the small diameter end side of any of the second leg members mentioned above. It may also be characterized by being prepared.
Any of the combination leg members described above includes an engagement member that is engageable with any of the engagement structures of any of the first leg members described above and any of the second leg member engagement structures described above. May be used as a feature.
In any of the combination leg members described above, any of the engagement members described above rotates and/or slides in a direction substantially perpendicular to the conical axis, so that the engagement structure of the first leg member and/or Alternatively, it may be characterized in that it is capable of engaging with the second leg member engagement structure and is separable from the first leg member engagement structure and/or the second leg member engagement structure. .
Any of the combination leg members described above may be characterized in that any of the engagement members described above includes a locking portion that supports rotation and/or movement in a direction substantially perpendicular to the conical axis.
Any of the combination leg members described above may further include casters to which the first leg member and the second leg member can be fixed on the large diameter end side or the small diameter end side, respectively.
An assembled pallet system comprising: a combination leg member including any of the first and second leg members described above; and a first plate member supported by the combination leg member, The first plate member has a large diameter end side of the first leg member or the second leg member by the first leg member and/or the second leg member at at least one location on the plate surface. A first assembled pallet can be configured to be fixed and assembled on the small diameter end side, and the first assembled pallet includes the first leg member, the second leg member, and the first assembled pallet. disassembled into plate members, using the disassembled first leg member and the second leg member, and using the disassembled first plate member or a different type of second plate member, It is possible to configure a second assembled pallet different from the first assembled pallet, and the above-mentioned assembly and disassembly may be characterized in that there is no need to use screws or bolts.
In any of the above-mentioned assembled pallet systems, the first plate member is a first plate member that is disassembled from at least one existing first assembled pallet and reused, or a recycled material that is recycled as a material. at least one of the first leg member and the second leg member is a first leg that is disassembled from at least one existing first assembled pallet and reused. It may be characterized in that it includes at least one of a member and a second leg member, or at least one of a first leg member and a second leg member made of a recycled material.
A reuse terminal that is movable together with at least one of the reused plate member and/or the reused first leg member and second leg member; A supply unit capable of providing at least one of a plate member made of recycled material and/or a first leg member and a second leg member made of recycled material as necessary; and a supply terminal provided in the supply unit. , a loading terminal provided at the loading area where the cargo to be loaded is located, and an unloading terminal provided at the unloading area where the cargo is unloaded, and meeting the configuration conditions of the assembled pallet that conforms to the cargo information from the loading terminal. The reuse terminal may receive conditions for the reuse member to be reused, and the reuse terminal may receive conditions for the reuse member to be reused, and the reuse member may be a plate member to be reused and/or at least one of the first leg member and the second leg member to be reused. The supply terminal can receive conditions for recycled parts that match the configuration conditions of the assembled pallet that match the cargo information from the loading terminal, and the recycled parts are plate members made of recycled materials. and/or includes at least one of a first leg member and a second leg member made of recycled materials, and information on conveying the reused member and/or the recycled member to the loading area is transmitted to the loading terminal. , In the loading area, an assembled pallet is assembled using the reused parts and/or the recycled parts, and the cargo is loaded thereon, and the reuse terminal is transported together with the assembled pallet loaded with the cargo, and the reused terminal is transported to the unloading terminal. , it may also be characterized by transmitting baggage information.
A transportation method for transporting cargo using any of the assembled pallet systems described above.
A transportation method for transporting cargo using any of the transportation systems described above.
a step of transmitting, from a reuse terminal, information on reused members including at least one of a plate member to be reused and/or a first leg member and a second leg member to be reused; and a board made of recycled material as necessary. a step in which a supply unit provides a recycled member including at least one of a first leg member and a second leg member made of a component and/or a recycled material; and information on the recycled member from a supply terminal provided in the supply unit. transporting the reusable parts together with the reuse terminal to a loading area where the cargo to be loaded is located, and transporting the recycled parts; transporting the reusable parts and the recycled parts at the loading area; loading the cargo onto the assembled pallet; transmitting information about the cargo from the loading terminal; A transportation method comprising: receiving information; and disassembling the assembled pallet after unloading, and transmitting information about the cargo, reused parts, and recycled parts by the reuse terminal.

Here, the hollow truncated cone shape may include a right truncated cone shape. The hollow frustoconical shape is generally defined by side walls that slope at a predetermined angle. Since it is hollow, a small truncated cone may be formed inside. The sidewall with a certain thickness may have an outer surface and an inner surface. Usually, a truncated cone is often viewed with its large diameter end facing down. The bottom surface may be on the large diameter end side, and the opposite surface may be on the small diameter end side. It may also be the end surface on the vertex side (small diameter end surface) when a cone that shares the vertex and has been similarly reduced is removed from the cone. The bottom surface (large diameter end side surface) and the small diameter end side surface may be provided with an opening. The small diameter end side surface may include an annular mounting surface extending from the truncated conical side wall. This mounting surface may extend approximately perpendicularly to the cone axis. The large diameter end side surface may include an opening. The large diameter end side surface may be formed by cutting the side wall substantially perpendicular to the conical axis. A ring member may be provided outside the circle formed by the cut surface of the side wall. The ring member may be provided integrally. The ring member may have a surface connected to the large-diameter end side surface in a direction substantially perpendicular to the conical axis. The first leg member and the second leg member may have the same shape or may have different shapes. The first leg member and the second leg member may be used to provide a space in the direction of the cone axis. The first and second plate members may be thin and flat. The material does not particularly matter. It may be made of paper made of cellulose or the like, or it may be made of wood. For example, it may be made of cardboard. Further, the material may contain resin or may be made of resin. Resins may include natural resins and synthetic resins. The synthetic resin may include, for example, thermosetting resins such as phenol resins and melamine resins, thermoplastic resins such as polyethylene, polypropylene, polyvinyl chloride, and polystyrene. These plate members may be solid or hollow. The locations fixed and supported by the first and/or second leg members may differ depending on the load to be loaded. There may be at least one location, preferably three or more locations. A greater number of points and a higher density of points may be used when the load requires the first and/or second leg members to support most of the load. There may be an opening in the portion supported by the first and/or second leg member. The opening may be a through hole. The opening in contact with the first and/or second leg member may be in a tight fit state at a portion of the large-diameter end surface or the small-diameter end surface of the first and/or second leg member. It may be in a clearance fit state. Preferably, the opening position is in a flat plane of the first and/or second plate member. There may be multiple openings. The plurality of openings may be independent openings separated by a predetermined distance from each other. The opening position may be provided as appropriate depending on the characteristics of the loaded object placed on the plate member. They may be provided at a constant ratio/density within a plane.

The outer diameter (or outer shape) of the small diameter end of the first leg member is such that the small diameter end side of the first leg member can be fitted by fitting from the large diameter end side of the second leg member. may be smaller than the inner diameter (or inner shape) of the opening on the large diameter end side of the second leg member. The hollow truncated conical shape may include an inner surface of an inner side wall (inner wall surface) and an outer surface of an outer side wall (outer wall surface) within the hollow. The inner and outer surfaces of the side wall may each be inclined at a predetermined angle with respect to the conical axis of the truncated cone. These predetermined angles may be the same or substantially the same. Further, the inclination angle of the outer surface may be slightly larger. When the first leg member is inserted into the opening on the large-diameter end side of the second leg member, the outer surface of the first leg member contacts the inner surface of the second leg member, and the fitting is locked. It's okay.

The load in the cone axis direction may include the load of the load placed on the first or second plate member applied to the first and/or second leg member. In principle, the fitted first leg member contacts the second leg member at their respective side walls, and transmits the load applied to each through the contacting side walls. Generally, the contact area tends to be large and the contact pressure tends to be low. Further, the thickness of the side wall of each leg member is smaller than other dimensions. If force is applied in the thickness direction, it is likely to be displaced. The load in the direction of the cone axis is transmitted along the side wall toward the large diameter end or the small diameter end, and generates a substantially perpendicular pushing force and a substantially It is thought that a horizontal and radial force (including resistance due to frictional force with the placement surface) acts on the surface. Alternatively, it is thought that the force may also be used to crush the shape of the hollow truncated cone. The radial force corresponds to the force that tends to spread the large diameter end and, within the thickness of the sidewall, is considered to correspond to the tensile force of the material. On the small-diameter end side, this corresponds to a constricting force, and within the thickness of the side wall, it is considered to correspond to a compressive force of the material. In response to excessive force, cracks may appear in the side wall at the large diameter end due to the tensile force, and the shape of the hollow truncated cone may be crushed. Moreover, on the small diameter end side, buckling may occur in the side wall due to compressive force, and the shape of the hollow truncated cone may be crushed. If the small diameter end side and the large diameter end side are stronger than other parts and have almost no deformation, the side wall of the first leg member to be fitted will expand or buckle outward at the large diameter end side due to such force. It is thought that there is a tendency for it to swell. On the other hand, it is thought that the side wall of the second leg member that is inserted acts like a "hoop" that prevents this expansion. It is considered that the first and second leg members both support the load in the direction of the cone axis. A portion of the side wall of the first leg member that is not in contact with the side wall of the second leg member is not supported cooperatively by both. If such a portion is long in the direction of the force along the sidewall, it is thought that it will be more likely to buckle. It is considered that the less the non-contact portion of the side wall of the first leg member, the less likely it is to buckle. If the first and second leg members are of the same shape, the overlap ratio (out of the total area of the outer surface of the side wall of the first leg member, the area that is in contact with the inner surface of the side wall of the second leg member) It is preferable that it be 50% or more. 60% or more is preferable. 70% or more is preferable. 80% or more is preferable.

Although the first and second leg members have a hollow truncated conical shape, it is preferable that a ring member is provided around the outer diameter at the large diameter end. This ring member may be integrally formed with the leg member. The ring member may be fitted as a component onto the outer periphery of the large diameter end. This ring member may have a function of preventing the large diameter end from expanding. Further, the inclination angle of the side walls of the first and second leg members (the angle of the inner surface or outer surface with respect to the conical axis) is greater than 0 degrees. At 0 degrees, the side walls are vertical walls and it is difficult for the first and second leg members to fit together. It may be one or more times. It may be twice or more. It may be 3 degrees or more. It may be 45 degrees or less. It may be 40 degrees or less. It may be 35 degrees or less. It may be 30 degrees or less. It may be 25 degrees or less. It may be 20 degrees or less. It may be 15 degrees or less. It may be 10 degrees or less.

The assembled pallet to be assembled is, for example, an assembled pallet in which the large-diameter end of the first or second leg member is placed on the installation surface, and the plate member is placed on the small-diameter end of the first or second leg member. May include. For example, it may include an assembly pallet in which the small diameter end of the first or second leg member is arranged on the installation surface, and the plate member is arranged on the large diameter end of the first or second leg member. Place the large diameter end of the first or second leg member on the installation surface, place the plate member near the large diameter end, and place the plate member on the small diameter end of the first or second leg member. It may also include a prefabricated pallet.

The first leg member and the second leg member may have the same shape. Additionally, the side walls may have substantially the same inclination angle. Alternatively, the shape may be selected from a plurality of types that differ only in height in the truncated cone shape. It is considered that if the inclination angles of the side walls are substantially the same, it is easy to overlap each other. The engagement structures on the small diameter end side of the first leg member and on the small diameter end side of the second leg member may be the same or different. These engagement structures may engage with each other. The first leg member and the second leg member may engage. The first leg member and the second leg member move in the direction of the cone axis and approach each other, but each engagement structure is engaged by rotating and/or sliding in a direction substantially perpendicular to the direction of the cone axis. May be combined. The engagement structure on the small diameter end side of the first leg member and the second leg member may be a latch structure, or may be a thread structure such as a male thread or a female thread. A structure that is engaged by displacement or movement in a direction substantially perpendicular to the cone axis direction is preferred. Such an engagement structure may be provided inside the mounting surface on the small diameter end side of each of the first and second leg members. A thin cylindrical portion extending along the cone axis direction may be provided inside the mounting surface. The thin cylindrical portion may be provided with a through hole in the cone axis direction (that is, the cylinder axis direction). The engagement structure may be provided on the inner wall of the through hole. The engagement member capable of engaging with the first leg member engagement structure and the second leg member engagement structure may include a lid member. It may also include something similar or equivalent to a bolt. The lid member may include a threaded portion that can engage with the engagement structure of the first leg member and/or the second leg member. The lid member may include a head. The head may have a larger diameter than the threaded portion. A larger diameter is mechanically advantageous when rotating the threaded portion. The engagement member may include a support structure for functioning the engagement structure. The support structure may include, for example, a locking portion. The locking portion may include a hook structure for sliding or rotational movement. The hook structure may include protrusions, openings, so-called anti-slip structures made of uneven shapes, and other structures. The assembled pallet may be disassembled into individual parts after assembly is completed.

The first leg member and the second leg member as well as the first plate member and the second plate member may be reused. Reuse is performed after each member is checked for damage, etc., and it is confirmed that there are no problems with reuse. Moreover, it may be returned to the raw material and recycled. In general, members made from recycled materials often have lower strength than members made from virgin materials. Therefore, in any case, it is preferable to estimate by multiplying by a safety factor (for example, 70% of the original strength). Furthermore, the engaging member may also be reused. Moreover, it may be returned to the raw material and recycled. The same considerations apply when estimating strength, etc. The reused members include the first and second reused leg members numbered after that, the first and second reused plate members numbered after that, and the reused first and second leg members numbered after that. A second and subsequent numbered locking member (including a lid member) and other members may be included. The recycled components include first and second and subsequent numbered leg components made from recycled materials; first and second and subsequent numbered plates made from recycled materials; The first and second and subsequent numbered locking members (including the lid member) made from recycled materials, and other members may be included. Broadly divided into three categories: leg members, plate members, and locking members, leg members, plate members, and locking members with different specifications are divided into collective leg members, collective plate members, and collective locking members. It may also be prepared as a stop member. Differences in specifications include, for example, that the materials constituting each member are virgin materials (including differences in materials such as paper, resin-impregnated paper, resin, etc.), recycled materials, or other materials. The dimensions of the parts are different (for example, in the case of a leg member, the height H1, the plate thickness t, the diameter of the large diameter end, the dimensions of the engagement structure (for example, the pitch of the screw, etc.), the length and diameter of the thin cylindrical part. etc.) may be different. In addition, if it is a plate member, the constituent material must be virgin material (including different materials such as paper, resin-impregnated paper, resin, etc.), recycled material, or other materials, and the length, width, and height. may include different dimensions, number, density, location, and size of apertures. Regarding reusable members, the possibility of reuse (degree of damage to the member) may be standardized by quantifying or the like. Specifications, numbers, etc. may be appropriately selected from these assembled members and transported to the required location. An assembled pallet may be made from these members at the destination and used.

It is preferable that the reuse terminal, supply terminal, loading terminal, and unloading terminal include input means, calculation means, and communication means. For example, it may be a smartphone. The supply unit is a warehouse in which things to be supplied (for example, may include at least one of a plate member made of recycled material and/or a first leg member and a second leg member made of recycled material) It may be. A loading area with cargo to be loaded may include a warehouse such as a station where cargo is temporarily stocked. The unloading area where cargo is unloaded may include, for example, a port facility where cargo is transferred, a transshipment station, a factory where cargo is used, a site, a shipper's destination, a delivery destination, etc.

Here, corrugated board generally refers to a plate-shaped paper product made from paperboard that has a multilayered structure and is made strong so that it can be used as packaging and packaging materials. Corrugated board is the name for a structure made by bonding flat paper (liner) and corrugated paper (medium) with adhesive to form a single structure. Depending on the number of liners and mediums, it is classified as single-sided corrugated cardboard, double-sided corrugated cardboard, and multi-sided corrugated cardboard. In a narrow sense, corrugated cardboard refers to this corrugated sheet, and the original corrugated cardboard also referred to this. It is a material for various corrugated products, and is a sheet-like (plate-like) material with a fluted (wave-shaped) core attached to a liner and further reinforced with a liner on the back side. (The above is from Wikipedia) Furthermore, two or more corrugated sheets can be used in a stacked manner. Appropriate thickness may be ensured to obtain the required strength.

The plate member may have an upper surface and a lower surface as main surfaces, and may be approximately rectangular when viewed from above. The space vacated from the installation surface by the leg members or the like may be vacated such that an insertion member such as a fork of a forklift can be inserted thereinto. For example, the above-mentioned space may be about 100 mm or more from the installation surface, such as the bottom surface of the leg member or the floor. It may be 120 mm or more. It may be 150 mm or more. If it is too low, the insertion member cannot be inserted, and if it is too high, there is a risk that the height of the assembled pallet alone or the assembled pallet loaded with cargo may become too high. It may not be appropriate to place it in a container with limited internal height. The leg member may include a spacer portion having a space retaining function and a support surface that receives a load from the plate member. The spacer section can support the load of stacked tiles and the like and maintain the space. Further, the support surface can receive the load by contacting at least a portion of the lower surface of the plate member. The leg member may be integrally molded including the spacer portion, the support surface, and the like. When the plate member is made of a recyclable material such as cardboard, it is disassembled and recycled after use. The material for molding may be, for example, synthetic resin such as plastic, fiber-reinforced synthetic resin, or the like. Preferably, it is made of a material that can be recycled or reused. The leg members can also be disassembled from the plate member and made reusable. The leg members may be arranged in a well-balanced manner around the plate member. Preferably, at least four leg members are arranged to support the plane. For example, they can be placed near each of the four corners of a rectangular plate member. Further, in the case of a cargo handling pallet in which two tiles are placed side by side and laid flat, one leg member may be provided in each approximately at the center in the longitudinal direction. Preferably, these leg members are of the same shape. For example, it may be classified into two types of shapes. If there are fewer types of shapes, manufacturing becomes easier.

As described above, according to the invention of the present application, the assembled pallet, the loaded assembled pallet, the container loaded with the loaded assembled pallet, the shipping method, the transportation method by loading the loaded assembled pallet into the container, etc. Therefore, there is less waste loss and the environmental burden can be lowered.

FIG. 1 is a perspective view showing an assembled pallet according to an embodiment of the present invention. FIG. 2 is an enlarged side view of a leg member portion of an assembled pallet according to an embodiment of the present invention. FIG. 7 is an enlarged side view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 3 is a perspective view showing an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged side view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged side view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 3 is a perspective view showing an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged side view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged side view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 3 is a cross-sectional view of a leg member according to an embodiment of the present invention. FIG. 3 is a schematic diagram of the decomposition of the force of the load on the leg member according to the embodiment of the present invention. 3 is a cross-sectional view of another leg member for an embodiment of the invention; FIG. FIG. 7 is an enlarged cross-sectional view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 7 is an enlarged cross-sectional view of a leg member of an assembled pallet according to another embodiment of the present invention. FIG. 7 is an exploded perspective view of a lid member, leg members, and plate member of an assembled pallet according to another embodiment of the present invention. FIG. 3 is a perspective view of a lid member and a leg member in an embodiment of the present invention. 3 is a cross-sectional view of another leg member for an embodiment of the invention; FIG. 3 is a cross-sectional view of another leg member for an embodiment of the invention; FIG. FIG. 3 is a partial perspective view of a plate member according to an embodiment of the present invention. FIG. 7 is a partial perspective view of another plate member according to an embodiment of the present invention. FIG. 7 is a partial perspective view of another plate member according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of an assembly of various leg members according to an embodiment of the present invention. FIG. 3 is a perspective view of an assembly of various plate members according to an embodiment of the present invention. FIG. 3 is a perspective view of an assembly of various lid members according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing a state in which the components of an assembled pallet according to an embodiment of the present invention are housed in a container. FIG. 3 is a perspective view of a caster that can be attached to a leg member in an embodiment of the present invention. FIG. 6 is a cross-sectional view with the internal structure omitted in a state where casters are attached to the small diameter end side of the leg member in the embodiment of the present invention. FIG. 4 is a cross-sectional view with the internal structure omitted in a state where casters are attached to the large diameter end side of the leg member in the embodiment of the present invention. 1 is a diagram illustrating a transportation method and a transportation system using assembled pallets according to an embodiment of the present invention.

Next, embodiments of the present invention will be described with reference to the drawings. Components and corresponding parts having the same configuration or function in each drawing are denoted by the same reference numerals, and the explanation thereof will be omitted. In addition, the following description merely shows examples of embodiments of the present invention, and changes can be made as appropriate based on the technical common knowledge of those skilled in the art without exceeding the scope of the present invention. Therefore, the scope of the present invention is not limited to these specific examples. Additionally, the drawings are exaggerated for illustrative purposes and may differ from actual dimensions.

FIG. 1A is a perspective view showing an assembled pallet according to one embodiment of the invention of the present application, FIG. 1B is a partially cutaway side view centered on the leg members, and FIG. 1C is a leg member of another assembled pallet. It is a partially cutaway side view centered on. The assembled pallet 10 includes six leg members 12, and a rectangular thin plate-shaped plate member 300 supported by these leg members 12 is provided with an opening 312 where each leg member 12 is arranged. The openings 312 include a total of six openings in the upper surface of the rectangle, near both ends in the longitudinal direction and in the center, and at both ends in the lateral direction. Furthermore, a plate member 600 is interposed at the position of each opening, as shown in FIG. 1B, which is a partial side view. The leg member 12 has a hollow truncated cone shape, and its large diameter end contacts the installation surface, and a ring member 26 is provided on the outer periphery of the bottom surface. FIG. 1C is an example of the assembled pallet 10 without the plate member 600 interposed therebetween. When the leg members 12 have their large diameter ends on the lower side as described above, the installation stability of the leg members 12 is high. For example, even if a sideways (horizontal) force is applied intermittently, it will not easily fall over. Although it appears that the leg member 12 is used alone here, it may also include an overlapping combination leg member (for example, a combination of two leg members 12) in which one leg member is fitted into the other. The respective leg members may have the same shape (same shape) or may have different shapes. In addition, overlapping or fitting portions may have shapes that can be combined with each other. For example, they may have shapes that complement each other, such as a convex shape and a concave shape. A combined leg member formed by overlapping leg members 12 of the same shape or different shapes can receive a force mainly in the direction of the cone axis at each side wall. The support for cone axial forces can be much higher.

FIG. 2A is a perspective view showing an assembled pallet according to one embodiment of the invention of the present application, FIG. 2B is a partially cutaway side view centered on the leg members, and FIG. 2C is a leg member of another assembled pallet. It is a partially cutaway side view centered on. The assembled pallet 100 includes six leg members 12, and a rectangular thin plate-shaped plate member 300 supported by these leg members 12 is provided with an opening 312 where each leg member 12 is arranged. Here, the large diameter end of the leg member 12 faces the installation surface, as in the case of FIG. 1A. A thin plate-shaped bottom plate member 400 having a rectangular upper surface is arranged on the installation surface side, and through holes 412 through which the large diameter end can be penetrated are provided at positions where each leg member 12 is to be arranged. . The openings 312 are provided with a total of six openings 312 in the upper surface of the rectangle, near both ends in the longitudinal direction and near the center, and on both ends in the lateral direction. Furthermore, a plate member 600 is interposed at the position of each opening, as shown in FIG. 2B, which is a partial side view. The leg member 12 has a hollow truncated cone shape, and its large diameter end contacts the installation surface, and a ring member 26 is provided on the outer periphery of the bottom surface. FIG. 2C is an example of the assembled pallet 100 without the plate member 600 interposed therebetween. When the leg members 12 have their large diameter ends on the lower side as described above, the installation stability of the leg members 12 is high. For example, even if a sideways (horizontal) force is applied intermittently, it will not easily fall over. Although it appears that the leg member 12 is used alone here, it may also include an overlapping combination leg member (for example, a combination of two leg members 12) in which one leg member is fitted into the other. A combined leg member formed by overlapping two leg members 12 of the same shape or two or more leg members of different shapes can receive a force mainly in the direction of the cone axis at each side wall. . The support for cone axial forces can be much higher. Furthermore, the bottom plate member 400 may be sandwiched between the respective ring members 26 of the two leg members 12.

FIG. 3A is a perspective view showing an assembled pallet according to one embodiment of the invention of the present application, FIG. 3B is a partially cutaway side view centered on the leg members, and FIG. 3C is a leg member of another assembled pallet. It is a partially cutaway side view centered on. The assembled pallet 200 includes six leg members 12, and a rectangular thin plate-shaped plate member 300 supported by these leg members 12 is provided with an opening 314 where each leg member 12 is arranged. The openings 314 have a total of six openings in the upper surface of the rectangle, near both ends in the longitudinal direction and in the center, and at both ends in the lateral direction. Furthermore, a plate member 600 is interposed at the position of each opening, as shown in FIG. 3B, which is a partial side view. The leg member 12 has a hollow truncated cone shape, and a thin cylindrical portion 24 (or a lid member described later) at the small diameter end contacts the installation surface. A ring member 26 is provided on the outer periphery of the large diameter end. This ring member 26 may be press-fitted into the opening 314 of the plate member 300. Moreover, when the plate member 600 is interposed, the ring member 26 may be press-fitted into the corresponding opening. FIG. 3C is an example of an assembled pallet 200 without intervening plate members 600. When the small diameter end of the leg member 12 is on the lower side as described above, it becomes easier to insert an insertion member such as a fork of a forklift into the space vacated from the installation surface by the leg member 12. The horizontal expanse of the empty space becomes larger at the bottom. Further, the leg members 12 in the drawings may include a combination leg member in which two leg members 12 (which may have the same shape or different shapes) are stacked on each other. As will be described later, a gap is formed between the ring members 26 of the two leg members 12, and the edge of the opening 314 of the plate member 300 may be fitted into this gap. If a plate member 600 is interposed, the edges of the corresponding opening may be fitted. The plate member 300 and/or the plate member 600 may be sandwiched between the ring members 26 of the leg members 12 that are components of the combined leg member. Further, a combination leg member formed by overlapping two leg members 12 of the same shape or different shapes can receive force mainly in the direction of the cone axis at each side wall. The support for cone axial forces can be much higher. A part of the load of the cargo placed on the plate member 300 may act as an inward constricting force due to the load in the cone axis direction at the small diameter end that contacts the installation surface. At this time, since the ring-shaped mounting surface 22 is formed into a shoulder shape, it can resist the force acting on the inner diameter side of the small diameter end. A combination leg member formed by overlapping two leg members 12 of the same shape or different shapes can receive a force mainly in the direction of the cone axis at each side wall. The support for cone axial forces can be much higher.

FIG. 4A is a cross-sectional view showing in more detail the configuration of a leg member 12 that can form an assembled pallet according to one embodiment of the invention of the present application. The leg member 12 is based on the shape of a thin hollow right circular truncated cone, and has a bottom opening 14 at the bottom, an upper opening 16 at the top of the conical ridge, an inclined outer surface 18, and an inclined inner surface 20. , an annular mounting surface 22 at the upper opening, a thin cylindrical section 24 at the inner ring of the mounting surface 22, and an annular ring member 26 at the bottom opening. The leg member 12 may be configured by integrally including a thin cylindrical portion 24, an annular member forming the mounting surface 22, a side surface including an outer surface 18 and an inner surface 20, and a ring member 26. For example, it can also be made by injecting resin or the like into a predetermined mold using an injection molding machine. Alternatively, each member may be made separately and the leg member 12 may be constructed by adhesion, welding, or mechanical coupling means. The bottom opening 14 has an inner diameter D4, the upper opening 16 has an inner diameter D2, the angle of inclination of the outer surface 18 is α degrees with respect to the conical axis 30, and the angle of inclination of the inner surface 20 is α degrees with respect to the conical axis 30. is β degrees with respect to the cone axis 30. The mounting surface 22 has an inner diameter of D1 and an outer diameter of D3. Therefore, the area of the mounting surface 22 is π[(D3/2)^2-(D1/2)^2]. The thin cylindrical portion 24 includes a partially internally threaded portion 25 having a plurality of protrusions inside the cylindrical shape. These protrusions are partially broken spiral recesses forming the female thread. A suitable male screw is screwed here to fix the leg member 12. The inner diameter of the ring member 26 is D5, and the outer diameter is D6. Further, the height of the hollow portion of the hollow leg member 12 is H1, and the height of the leg member 12 including up to the thin cylindrical portion 24 is H2. In order to satisfy the above-mentioned relationship, it is preferable that these dimensions have certain rules.

The basic shape of the main leg member 12 can be roughly defined by the inner diameter D4, outer inclination angle α≧inner inclination angle β, thickness t, and internal height H1. Here, the thickness t may be the same as the height H4 of the upper center annular portion. It can also be determined by multiplying the difference between the inner diameter and outer diameter at the same height by the cosine of the inclination angle. That is, if the height from the bottom is y, the difference between the outer diameter Dout(y) and the inner diameter Din(y) at a certain height H(y) may be multiplied by cos(α(≧β))(t =(Dout(y)−Din(y))×cos(α or β)). Here, it is substantially preferable that α=β. α>β may be satisfied. α≦1.1×β may be satisfied. Further, the annular ring member 26 may be a separate part (which may include an O-ring-like hoop, etc.) such as a ring fitted to the base of a hollow truncated cone, but as shown in FIG. 4A, It may be integrally molded. Its characteristic dimensions are an outer diameter D6 and a thickness (or height) H3.

The leg members 12 constituting the cargo handling pallet have the function of holding a space into which a claw (fork) of a forklift or the like can be inserted. Therefore, it is preferable to have a height (for example, H1) that allows the claw to be inserted. Specifically, H1≧50 mm is preferable. It is preferable that H1≧70mm. It is preferable that H1≧80mm. It is preferable that H1≧100mm. On the other hand, it is also undesirable that the height is unnecessarily high, since the loadable weight will be reduced. For example, H1≦700 mm is preferable. It is preferable that H1≦500mm. It is preferable that H1≦300mm. H1≦200mm may be satisfied.

The outer diameter D5 or D6 or the inner diameter D4, which corresponds to the thickness of the leg members 12 constituting the assembled pallet, affects the load-bearing performance of the leg members 12. Also, the thickness t may be defined by D4, D5, and H3 and β (or α). For example, t=(D5−D4+2×H3·tan(β))/2·cos(α or β). If α=β=5 degrees, H3=5mm, D4=100mm, and D5=106mm, then t=3.4mm may be obtained. For example, the compressive strength of polypropylene is approximately 40 MPa, so this leg member 12 may be crushed by approximately 1 ton. If the inclination angle α (and β) and the thickness t are kept constant and the diameter is doubled, the supporting area will be doubled, and the load resistance will be improved. However, in order to maintain insertion space for the claws (forks) of a forklift or the like, if the pallet is too large, its function as a cargo handling pallet may deteriorate. Specifically, D4≧30 mm is preferable. D4≧40mm is preferable. D4≧50mm is preferable. D4≧60mm is preferable. D4≧70mm is preferable. D4≧80mm is preferable. D4≧90mm is preferable. Further, in consideration of functionality, it is preferable that D4≦300 mm. D4≦250mm is preferable. D4≦230mm is preferable. D4≦210mm is preferable. D4≦200mm is preferable. D4≦190mm is preferable.

Furthermore, the thickness t directly affects the load bearing area, and simply speaking, it can be said that multiplying the length of the circumference, which is the outer shape of a hollow truncated cone, by this thickness t corresponds to the load bearing area. The thinner the thickness t, the lighter the leg member 12 can be. However, considering the supporting load, if the pallet is too thin, it will be difficult to construct an assembled pallet. From the viewpoint of ease of manufacture, it is preferable that the thickness t is not too thin. On the other hand, if the thickness t is too thick, it may become difficult to use the leg members 12 in an overlapping manner. Moreover, there is also a possibility that the weight becomes excessive. It may be determined individually taking into consideration the required load-bearing properties and the like. For example, it is preferable that t≧0.5 mm. It is preferable that t≧0.7 mm. It is preferable that t≧0.9 mm. It is preferable that t≧1 mm. It is preferable that t≧1.2 mm. It is preferable that t≧1.3 mm. It is preferable that t≧1.5 mm. There may be t≧2mm. On the other hand, it is preferable that t≦10 mm. It is preferable that t≦8 mm. It is preferable that t≦7mm. Preferably, t≦6 mm. It is preferable that t≦5mm. It is preferable that t≦4 mm. t≦3mm may be sufficient. By the way, the thickness t can also be defined as a relative ratio to the inner diameter D4 (or outer diameter D5 or D6). For example, it may be 1% or more of the inner diameter D4, 1.2% or more of the inner diameter D4, 1.4% or more of the inner diameter D4, 1.5% or more of the inner diameter D4, or 1.6% or more of the inner diameter D4. . Further, for example, it may be 10% or less of the inner diameter D4, 9% or less of the inner diameter D4, 8% or less of the inner diameter D4, 7% or less of the inner diameter D4, or 6% or less of the inner diameter D4.

The outer inclination angle α≧inner inclination angle β becomes important when two or more leg members 12 of the same shape are used in a stacked manner. It is preferable that the outer inclination angle α is substantially the same as or slightly larger than the inner inclination angle β. When two or more leg members 12 of the same shape are stacked, the upper part of the leg member 12 (for example, the outer diameter indicated by D3) is inserted into the bottom opening (for example, the inner diameter indicated by D4), and the inserted leg member 12 (hereinafter referred to as the "inserted leg member") contacts and contacts the inner surface 20 of the inserted leg member (hereinafter referred to as the "inserted leg member") that receives the inserted leg member, thereby preventing further insertion. to prevent At this time, if the outer inclination angle α is particularly smaller than the inner inclination angle β, the upper part of the outer surface 18 will contact the inner surface 20, but the lower part of the outer surface 18 may be difficult to contact the inner surface 20. unknown. Therefore, the supporting load is applied only to the upper part of the outer surface 18 of the insertion leg member and the inner surface 20 of the corresponding inserted leg member, and there is a possibility that excessive surface pressure may occur. For example, the outer inclination angle α is preferably 0.9 times or more the inner inclination angle β. The outer inclination angle α is preferably 0.95 times or more the inner inclination angle β. It is preferable that the inner inclination angle β is 0.97 times or more. Further, it is preferably 1.2 times or less. The outer inclination angle α is preferably 1.1 times or less than the inner inclination angle β. The outer inclination angle α is preferably 1.05 times or less than the inner inclination angle β. For example, it is preferable that β≧1 degree. β≧1.2 degrees is preferable. β≧1.4 degrees is preferred. β≧1.5 degrees is preferred. β≧1.7 degrees may be satisfied. β≧1.9 degrees may be satisfied. β≧2 degrees may be satisfied. On the other hand, if the angle of inclination is too large, there is a risk that the load applied to the side wall defined by the outer surface 18 and the inner surface 20 will become excessive. For example, as shown in FIG. 4B, the supporting load F of the leg member 12 can be decomposed into a force fw along the side wall and a force fh horizontally directed toward the center of the truncated cone when viewed from above in the cross section. It may be. fw may correspond to the supporting load F divided by cos(β). For example, if β is 3 degrees, 1/cos (β) is 1.001372346, fw is almost the same as the support load F, tan (β) is 0.052407779, and fh is the support load F. This is about 5% of the load F. As shown in Table 1, fw and fh do not change much until β is about 6 degrees, but when β exceeds 7 degrees, especially fh becomes about 12% of F. When it exceeds 10 degrees, it becomes about 17% of F. The amount of increase in fw increases when β exceeds 45 degrees. Therefore, it is preferable that β≦45 degrees. β≦35 degrees is preferred. β≦30 degrees is preferred. β≦25 degrees may be satisfied. β≦20 degrees may be satisfied. β≦15 degrees may be satisfied. β≦10 degrees may be satisfied.

Further, in the case of α=β, if the thickness is t, the portion where the periphery of the outer surface of the insertion leg member can be inserted into the inner diameter D4 of the bottom of the inserted leg member is y from the bottom opening surface of the insertion leg member. (mm)≧t/2/sin α. For example, if α = β = 1.5 degrees and t = 3 mm, the insertion leg member can enter the hollow part of the inserted leg member from the top up to 57.30 mm from the bottom opening surface. It turns out. If H1 corresponding to the height of the hollow portion is 100 mm, the insertion leg member and the inserted leg member may overlap up to (100-57)/100=43%. The overlapping portion transmits the support load from the upper part of the inserted leg member to the insertion leg member, and the annular surface defining the periphery of the bottom opening of the insertion leg member transmits it to the installation surface. If the overlapping portion is too small, there is a risk that force transmission will be impaired. On the other hand, if the overlapping portion is too large, the thickness t needs to be reduced and/or the inclination angle needs to be increased. Therefore, the load that can be supported may become too small. Generally, it is preferable that the height is 40% or more with respect to H1, which corresponds to the height of the hollow portion. 50% or more is preferable. It may be 60% or more. It may be 70% or more. It may be 80% or more. On the other hand, in consideration of mechanical strength, thickness t, and inclination angle, 99% or less is preferable. 98% or less is preferable. It may be 97% or less. It may be 95% or less. It may be 93% or less. It may be 91% or less. It may be 90% or less.

When H1 corresponding to the height of the hollow portion is in the range of 50 mm≦H1≦200 mm, it is preferable that the insertion leg members overlap up to 20 mm from the bottom opening surface. Preferably, they overlap by 25 mm. Preferably, they overlap by up to 30 mm. On the other hand, it is preferable that the thin cylindrical portion 24 at the top of the conical ridge not come into contact with each other, so it is preferably larger than H2-H1.

FIG. 4C is a cross-sectional view showing in more detail the configuration of the leg member 13 that can form an assembled pallet in accordance with another embodiment of the invention of the present application. The leg member 13 has a similar configuration to the leg member 12 shown in FIG. 4A. The difference is that a protrusion 24c is provided on the outer circumferential surface of the extended thin cylindrical portion 24a extending below the annular mounting surface 22 of the upper opening in the hollow so as to be partially male threaded. This protrusion can be screwed or engaged with, for example, a partially female threaded portion provided with a plurality of protrusions on the inside of the cylindrical shape of the thin cylindrical portion 24 of the leg member 13 having the same shape. Such partial male threaded portion 24b allows the leg members 13 or the leg members 13 and 12 to be engaged with each other, or the leg members 13 and 12, even without engagement by the threaded portion of the lid member included in the engaging member, which will be described later. Basically, the shape conditions of the leg member 13 are the same as the shape conditions of the leg member 12. However, when they overlap, it is preferable that the thin-walled cylindrical portion 24, the extended thin-walled cylindrical portion 24a, and the partial male threaded portion 24b do not come into contact with each other. The length to the surface may be (H2-H1)+(H1-H5)=H2-H5 or more.

FIG. 5A shows that the thin cylindrical portion 24 of the leg member 12 is inserted into the opening 612 of the plate member 600 and the opening 312 of the plate member 300, and is placed on the mounting surface 22 in this order, so that the lid member 50 is inserted into the thin cylindrical portion. A cross-sectional view shows a state in which the partially female threaded portion 25 of the portion 24 is screwed together. The plate member 600 and the plate member 300 are held between the head 52 of the lid member 50 and the mounting surface 22. At this time, other elements such as adhesives or fastening members are not required. This is because the frictional force and clamping force between the outer peripheral surface of the thin cylindrical portion 24 and the side surfaces of the openings 612 and 312 are sufficient to hold the leg member 12 (and the lid member 50). However, an adhesive can also be used as an auxiliary adhesive. The leg member 12 has a bottom surface 32 of the bottom opening 14 in contact with the installation surface (the surface on which the assembled pallet 10 is installed), and supports the load of the object placed on the leg member 12, the plate member 300, etc. do. Further, the lid member 50 mainly includes a head 52 and a threaded portion 54. The threaded portion 54 is screwed into the partially female threaded portion 25 of the thin-walled cylindrical portion 24 that extends in the same direction as the upper opening 16 of the leg member 12 about the conical shaft 30 . The upper surface of the head 52 is provided with annular convex portions 55 and 57 spaced apart from each other in a substantially concentric manner. The load of the object placed on the plate member 300 of the assembled pallet 10 is transmitted to the placement surface 22 via the plate member 300 and the plate member 600. Moreover, it may be supported by the upper surface of the lid member 50. Then, this load is supported and transmitted to the side wall defined by the outer surface 18 and inner surface 20 of the leg member 12, and is transmitted from the bottom surface 32 to the installation surface, and the weight of the assembled pallet 10 including the objects to be installed is The surface supports. A ring member 26 is provided around the outer periphery of the bottom opening 14 of the leg member 12, together forming a bottom surface 32.

FIG. 5B is a side cross-sectional view of the attached combined leg member in which the top of another leg member 12a is inserted into the bottom opening 14 of the leg member 12, and the leg members 12 and 12a overlap to form a leg. shows. The insertion leg member 12a can be said to have substantially the same shape except that the height thereof is lower than that of the inserted leg member 12. This can also be achieved, for example, by appropriately changing the height H1 in FIG. 4A. The threaded portion 54 of the common lid member 50, which is screwed into the corresponding partial female threaded portion 25 of the inserted leg member 12, is screwed into the partially female threaded portion 25 of the thin cylindrical portion 24 of the insertion leg member 12a. In this way, the combined leg member consisting of the leg members 12 and 12a is mechanically integrated, but the load as described above is applied from the inner surface 20 of the inserted leg member 12 to the inserted leg member that is in contact with the inserted leg member. It is transmitted through the outer surface 18a of the insertion leg member 12a, and is supported and transmitted to the side wall of the insertion leg member 12a. Further, the bottom surface (opposite side of the mounting surface 22) of the annular member connected to the bottom opening of the thin cylindrical portion 24 of the insertion leg member 12a and forming the mounting surface 22 is connected to the bottom opening of the thin cylindrical portion 24 of the insertion leg member 12a. At least a portion of this load may be transmitted to the insertion leg member 12a by directly or indirectly contacting the edge constituting the upper surface opening through an intervening object. In this way, the load applied to the top surface of the lid member 50 and the mounting surface 22 of the leg member 12 can be distributed and transmitted to the insertion leg member 12a. By doing so, the load is distributed appropriately, so that unnecessary deformation of the leg members 12 and the insertion leg members 12a can be prevented, and the fitting portions can be prevented from sticking. Note that at least a portion of the load applied to the top surface of the lid member 50 can be transmitted to the edge forming the top opening of the thin cylindrical portion 24 of the leg member 12 via the flange portion at the top of the lid member 50. Then, the load is transmitted from the bottom surface 32a of the insertion leg member 12a to the installation surface, and the installation surface supports the weight of the assembled pallet 10 including the objects placed thereon. At this time, the height of the insertion leg member 12a may be such that the bottom surface 32 of the ring member 26 of the inserted leg member 12 does not come into contact with the upper surface of the ring member 26a of the insertion leg member 12a. The object may be deformed and brought into contact with the weight of the assembled pallet 10 on which the object is placed. Further, there may be a void 27. However, this gap 27 is preferably 20 mm or less. It is preferably 15 mm or less. It may be 10 mm or less. FIG. 5C shows an attached combined leg member in which the top of yet another leg member 12b is inserted into the bottom opening 14a of the insertion leg member 12a, and the leg members 12, 12a, 12b overlap to form a leg. A cross-sectional view is shown. The second insertion leg member 12b can be said to have the same shape as the inserted leg member 12, except that the height has been adjusted. The height is adjusted so that the relationship between the insertion leg member 12a and the second insertion leg member 12b is exactly the same as the relationship between the inserted leg member 12 and the insertion leg member 12a.

FIG. 5D shows a side sectional view of a combination leg member that has the same shape as the side sectional view of the combination leg member of FIG. 5B except that plate member 600 is absent and plate member 300 is thicker. Although the plate member 300 may be made of a material with relatively low strength such as cardboard, it is effective when the object to be placed has a structure in which its own weight can be supported only by the lid member 50. Conceivable. As described above, it can be seen that the plate member 300 and/or the plate member 600 do not need to be connected to the leg members 12 and the like using an adhesive or the like. That is, it can also be held between the mounting surface 22 and the head 52. Conversely, by removing the lid member 50 from the leg members 12 and the like, the plate member 300 and/or the plate member 600 can be removed.

FIG. 6A shows a cross-sectional view focusing on the leg member 12 of the assembled pallet 100 of FIG. 2A. A bottom plate portion 400 is arranged at the bottom of the leg member 12. This is arranged, for example, by fitting into the gap 27 formed between the ring members 26 when two leg members 12 of the same shape are fitted and overlapped to form a combined leg member. More specifically, for example, a bottom plate portion 400 having an opening 412 at a location where the combination leg member is placed is placed on the installation surface. This opening 412 is smaller than the outer diameter of the ring member 26 of the leg member 12, but may be larger than the outer diameter of the lowermost end of the outer surface 18 of the leg member 12. A part of the placed bottom plate 400 is picked up, the leg members 12 are placed upright under the bottom plate 400, and the tops of the leg members 12 are inserted into the openings 412. The same is done for other leg members 12 and corresponding individual openings 412 so that a leg member 12 is placed in each opening 412 of the intended bottom plate portion 400. In this way, an appropriate number of leg members 12 can be easily arranged at appropriate intervals and in an appropriate pattern. Next, each leg member 12 is used as an insertion leg member 12, and the leg member 12 to be inserted having the same shape is placed thereon, and the top of the insertion leg member 12 is inserted through the bottom opening 16. Next, the plate member 600 and/or the plate member 300 each having an opening 612 and/or 312 with a smaller diameter than the outer diameter of the mounting surface 22 of the leg member 12 to be inserted is arranged. Next, the lid member 50 is screwed into the partially female threaded portion 25 of the thin cylindrical portion 24 of the upper opening 16 of the leg member 12 to be inserted, and the plate member 600 and/or the plate member 300 are clamped and fixed. At this time, a counterbore may be provided in the plate member 300 so as to match the head 52 of the lid member 50. The assembled pallet 100 completed in this manner has improved rigidity and durability. FIG. 6B shows a cross-sectional view of a combination leg member that has the same shape as the cross-sectional view of the combination leg member of FIG. 6A except that plate member 600 is absent and plate member 300 is thicker. Since the same thing can be said as described in FIG. 6A, it will be omitted here.

FIG. 7 shows a cross-sectional view focusing on the leg member 12 of the assembled pallet 200 of FIG. 3A. The leg members 12 are arranged upside down. For example, in a plate member 300 in which a plurality of openings 322 for the leg members 12 are opened at predetermined positions, the leg members 12 are inserted into each of the openings 322 from above. Next, the leg members 12 that form a pair of the combined leg members are applied from below, and the lid member 50 is screwed into the partially female threaded portion 25 to engage the leg members 12, thereby forming the gap 27 between both ring members 26. The plate member 300 is held between the two. Also at this time, no particular engagement material such as adhesive or bolts is required. A lubricating member, such as a lubricating coating, may further be disposed on the head 52 of the lid member 50. Furthermore, the convex portions 55 and 57 may also contribute to reducing the frictional force with the installation surface by increasing the surface pressure (generally, when the surface pressure is high, the friction coefficient becomes low). In this way, the leg member 12 and the plate member 300 (and the plate member 600) are fastened together using a detachable fastening portion, so that they can be easily assembled and disassembled. Figure 7 is similar to the side cross-sectional view of the combination leg member of Figure 5C, turned upside down. Here, there is no plate member fixed by the lid member 50 or the like, and the configuration is such that the edge of the opening 322 of the plate member 300 is held in the gap 27 between the ring members 26. How the opening 322 of the plate member 300 is held is similar to the case in FIG. 5C, so a description thereof will be omitted here. Because of this configuration, the number of parts is small, and assembly and disassembly can be performed easily.

The above assembly will be illustrated in more detail. In FIG. 8A, the two leg members 12 overlap to form a combined leg member 512, and the thin cylindrical portion at the top of the inserted leg member 12 passes through the opening 612 of the plate member 600 and the opening 312 of the plate member 300, and FIG. 3 is an exploded perspective view illustrating how the lid member 50 is screwed into the partially female threaded portion 25 from above. It is placed on the placement surface 22 of the upper leg member 12 to support an object placed on the plate member 300. The head 52 of the lid member 50 is provided with two openings 60, which function as locking portions that support screwing into the partially female threaded portion 25 and turning to be taken out from the partially female threaded portion 25. . Further, the outer circumferential surface of the head 52 has an uneven shape and functions as a friction member 62. FIG. 8B is a perspective view showing the lid member 50 and the leg member 12 arranged side by side in an engaging direction. The leg member 12 is provided with an uneven shape 33 and has a non-slip function.

FIG. 9 is a sectional view showing a state in which two other leg members 13 shown in FIG. 4C are engaged, regarding the embodiment of the present invention. The lower leg member 13, which is the insertion leg member, is inserted through the bottom opening 14 of the upper leg member 13, which is the leg member to be inserted, and the partially female threaded portion 25 of the thin cylindrical portion 24 of the lower leg member 13 is inserted. , engages with the protrusion 24c of the partially female threaded portion 24b at the tip of the extended thin cylindrical portion 24a of the upper leg member 13. This engagement is sufficient to withstand tensile forces, such as when an assembled pallet made up of such combined leg members is lifted by a forklift or the like, to hold its own weight (self-weight), etc. There may be. This engagement does not necessarily need to significantly resist compressive forces. For example, the outer surface 18 of the side wall of the lower leg member 13 and the inner surface 20 of the side wall of the upper leg member 13 mainly support the load including the weight of the cargo loaded on such an assembled pallet. It may also be a force transmitted between. It may also include a force that is partially transmitted between the upper surface of the thin cylindrical portion 24 of the lower leg member 13 and the lower surface of the extended thin cylindrical portion 24a of the upper leg member 13. This combination may constitute an assembled pallet configured such that the large diameter end contacts the installation surface as in Figures 1A to 1C and Figures 2A to 2C (see Figures 6A and 6B), and Figure 3A. An assembled pallet may be constructed such that the small-diameter end contacts the installation surface, as in 3C. As described above, even if there is no lid member, an assembled pallet can be constructed.

FIG. 10 is a sectional view showing a state in which two other leg members 13 (12 in FIG. 10) shown in FIG. 4C are engaged with each other by a lid member 50 in accordance with the embodiment of the present invention. The lower leg member 13, which is the insertion leg member, is inserted through the bottom opening 14 of the upper leg member 13, which is the inserted leg member, and is inserted into the partially female threaded portion of the thin cylindrical portion 24 of the upper and lower leg members 13. 25 engages with the external thread of the threaded portion 54 of the lid member 50, and the upper and lower leg members 12 engage with each other via the lid member 50. This engagement is sufficient to withstand tensile forces, such as when an assembled pallet made up of such combined leg members is lifted by a forklift or the like, to hold its own weight (self-weight), etc. There may be. This engagement does not necessarily need to significantly resist compressive forces. For example, the load of the cargo mounted on the plate member 300 supported by the mounting surface 22 of the upper leg member 12 is transferred to the tip of the thin cylindrical portion 24 via this mounting surface 22 and the head 52 of the lid member 50. It may be supported by The load is applied via the side wall of the upper leg member 12 (as necessary) and the lower end of the thin-walled cylindrical portion 24 to the side wall of the lower leg member 12 (as necessary) and the thin-walled cylindrical portion 24. (the upper end of the cylindrical portion 24). This combination may constitute an assembled pallet configured such that the large diameter end contacts the installation surface as in Figures 1A to 1C and Figures 2A to 2C (see Figures 6A and 6B), and Figure 3A. An assembled pallet may be constructed such that the small diameter end side contacts the installation surface as shown in 3C. At this time, a lubricating member 58 may be provided on the surface of the head 52 of the lid member 50. For example, the lubricating member 58 may include a solid lubricating member or a high surface pressure grease member.

FIGS. 11A to 11C illustrate plate materials that can constitute the plate member 300. FIG. 11A is a partially cut-away perspective view illustrating a honeycomb board 800 with the surface members broken to reveal a honeycomb structure 810 arranged vertically. Such a honeycomb structure may be made of paper, resin, or paper containing resin. The resin may include synthetic resin. Similarly, an opening 312 is provided. FIG. 11B is a partially cutaway perspective view illustrating a plate member made of a so-called plywood plate 900 made of laminated thin plates 910, 920, 930, 940, and 950. Similarly, an opening 312 is provided. Once separated from the leg member 12, any of these members can be easily recycled. However, it is often not suitable for reuse because it often comes into direct contact with the loaded object. FIG. 11C shows a corrugated board 700 (which may be made of paper, resin, or paper containing resin) equipped with a W flute consisting of a fine flute 710 and a large flute 720. FIG. 2 is an illustrative partially cutaway perspective view. This cardboard 700 similarly has an opening, but includes a flanged cylindrical member 323 reinforcing its edges. The flange portion of this flanged cylindrical member 323 can receive the load of the placed object and support at least a portion thereof. Reinforce the edges of the opening. Once the plate members made of these plate materials are separated from the leg members 12 and the like, they can be easily reused or recycled. However, it is often not suitable for reuse because it often comes into direct contact with the loaded object.

12A to 12C schematically show a collective leg member 120 made up of various leg members, a collective plate member 440 made up of various plate members, and a collective lid member 500 made up of various lid members, respectively. As described above, in accordance with the embodiments of the present invention, the assembled pallet may be mainly composed of leg members (which may include combination leg members) and plate members. Moreover, a lid member may be further included as necessary. Such an assembled pallet can be easily assembled using these components without using any tools. Therefore, by transporting the necessary parts to the necessary locations, it is possible to assemble the assembly pallet on the spot and place the cargo to be loaded on it. In this way, it is possible to provide an assembled pallet that can be used for various purposes with a relatively small number of component types, such as two, three, or more types. By standardizing various dimensions, materials, etc. of the collective leg members, collective plate members, and collective lid members, it is possible to create a database of assembled pallets that can obtain desired characteristics by combining each member. In particular, the dimensions of the leg members can be standardized so that a combined leg member can be constructed by overlapping them. For example, one to several types of inclination angles α and β may be prepared. Further, in the case where the inclination angle is the same and the diameter on the small diameter end side is constant to some extent, several heights corresponding to H1 are prepared. It can be seen that by doing so, the strength of the combined leg member is increased compared to when only one leg member is used. If further strength is required, cluster leg members of various heights may be prepared so that two or more (for example, three, four, etc.) leg members can be stacked one on top of the other. Furthermore, the material of the leg members may include paper, resin-containing paper, resin, or other materials. Furthermore, in each case, recycled materials may be used as raw materials. In particular, leg members are often required to have strength, so materials that can be reused are preferred.

Furthermore, the plate member may also be prepared in various ways, such as overall dimensions (which may include length, width and height), number of openings, size, position, etc. It may also include paper, resin-containing paper, resin, or other materials. Furthermore, in each case, recycled materials may be used as raw materials. Similarly, the lid member may be adapted to the female threaded portion of the leg member, but it may be prepared in various ways such as the overall dimensions (which may include length, width and height), number of openings, size, position, etc. good. It may also include paper, resin-containing paper, resin, or other materials. Furthermore, in each case, recycled materials may be used as raw materials. In addition to such a plate member, a collective bottom plate member may be similarly prepared in which one or more types of bottom plate members are collected. It can be applied to assembled pallets as shown in FIGS. 2A to 2C.

Next, a method of using such a collective member will be described. For example, when it is necessary to load a large load onto an assembled pallet, a plate member suitable for the load is selected from various plate members of the collective plate member 440 shown in FIG. 12B. Next, the weight of the cargo to be loaded on one assembled pallet is calculated, and a leg member suitable for the weight is selected from the collective leg member 120 of FIG. 12A. As mentioned above, weight and environment (eg, humidity) may also be taken into consideration. Then, lid members that fit the lid members are selected from the collection lid members 500 shown in FIG. 12C, and the required number of each lid member is transported to the required location. For example, if each member is transported separately in a container or the like as shown in FIG. 13, the volumetric efficiency will be improved, and it is also possible to minimize the cost and required energy for transportation.

In the embodiment of the present invention, the leg members 12 have a property that their volume becomes small and compact by being overlapped. The plate member 600 can also be laminated compactly due to the combination of projections and recesses. Since the plate member 300 has a flat plate shape as a basic shape, it is easy to stack the plates. Here, a space efficiency improvement rate that defines the improvement in space efficiency is defined. By combining fittable concave and convex members like the leg members 12, more leg members can be packed in the same three-dimensional space. Improved space efficiency may mean that more things (eg, leg members, etc.) can be packed into the same three-dimensional space. For example, consider a hypothetical minimum rectangular parallelepiped that can accommodate one leg member 12 inside. Let the volume (or capacity) of this rectangular parallelepiped be A cm ³ . Next, considering a hypothetical rectangular parallelepiped that can be stored inside with the two leg members 12 lined up side by side, it is clear that a size of A×2 cm ³ can be stored. When the space efficiency is improved, the two leg members 12 can be accommodated in a volume (or volume) smaller than A×2 cm ³ due to the combination of their respective unevenness. If the volume of the minimum rectangular parallelepiped that can accommodate the two leg members 12 engaged at this time is Bcm ³ , then the space efficiency improvement=(2×AB)/(2×A) can be expressed as a percentage. For example, if we consider a case where the leg member 12 is housed in a 20 cm x 20 cm x 20 cm cube (which may be included in a rectangular parallelepiped), it is assumed that A = 8000 cm ³ . Assuming that the top of the inserted leg member is inserted through the bottom opening of the inserted leg member and the height can be lowered by 5 cm, B = (20 x 2-5) x 20 x 20 = 14000 ^cm3 . , space efficiency improvement=(2×8000−14000)/(2×8000)=0.125=12.5%. Since B>A, at most the space efficiency improvement is 50%. It is preferable that the space efficiency is improved by 5% or more, 10% or more, 15% or more, or 20% or more. Although the same type of members have been described here, different types of members may be used.

FIG. 14A shows a perspective view of a caster that can be attached to the leg member 12 in an embodiment of the present invention. FIG. 14B is a cross-sectional view showing the caster attached to the small diameter end of the leg member 12, with the internal structure omitted. Moreover, FIG. 14C is a diagram showing a cross-sectional view of the leg member 12 with the caster attached to the large diameter end side, with the internal structure omitted. In an embodiment of the present invention, a so-called caster 110 is shown in FIG. 14A as an example of a free movement device that can be attached to the leg member 12. The caster 110 includes a wheel 116 connected to an axle 118 via a bearing 114, a stopper 118 that serves as a brake for the wheel 116, a main body that rotatably supports the axle 112 and supports a load, and a horizontal direction of the main body. The bearing 120 includes a bearing 120 that can rotate freely, and a support 122 coupled to the bearing 120. The support base 122 is surrounded by a wall 124, on which a cover plate 126 is provided with an opening 128, and a U-shaped insertion slit 130 is provided from one open side of the wall 122. It will be done. As shown in FIG. 7, in the leg member 12 with the small diameter end facing downward, the lid member 50 is screwed into the partially female threaded portion 25 of the thin cylindrical portion 24 at the top of the head by means of the threaded portion 54. The load in the direction of the conical shaft 30 is transmitted from the thin cylindrical portion 24 to the head 52 of the lid member 50. The tip of the head 52 (lowest end in the figure) has a larger diameter than the thin cylindrical portion 24, so it is inserted from one side opened into the insertion slit 130 between the support base 122 and the cover plate 126 of the caster 110. It slides and is fixed in a specific position. One side that is open at this time may be closed with a suitable lid. When all the leg members 12 are set in this manner, the assembled pallet 200 can be freely moved on a plane while the cargo is placed thereon in the assembled pallet shown in FIG. On the other hand, in FIGS. 1A to 1C and 2A to 2C, in the assembled pallets 10 and 100 in which the large diameter end is disposed on the lower side, the ring portion 26 is inserted into the insertion slit 130 between the support base 122 and the cover plate 126. Once the casters 110 are attached to the leg members 12, the assembly pallets 10, 100 can be freely moved on a flat surface, as in the case described above.

FIG. 15 illustrates an example in which ceramic tiles are loaded. A system for managing assembled pallets from the site where ceramic tiles are provided (loading area: M) to the installation site where the loaded ceramic tiles are used (unloading area: L) is illustrated. At the tile manufacturing site (loading area: M), components of assembled pallets are transported and provided, and pallets for cargo handling for shipping tiles are assembled. For example, an assembled pallet is assembled from a recycled flat plate portion (corresponding to a plate member) made of recycled materials such as cardboard, and leg members etc. that have been disassembled from the assembled pallet, reused, and transported here. The recycled plate portion may be made of general recycled cardboard or the like obtained near the manufacturing site. Further, the reusable leg members may be disassembled from an assembled pallet that has been used at least once. These reusable leg members and the like have a shape and structure that improves space efficiency so that they can be easily packed and transported when disassembled. The ceramic tiles loaded on such an assembled pallet are shipped together with the assembled pallet and transported by a truck or the like. If necessary, it is transported to a port (Hout) for use by sea transportation and placed in a typical container. Ceramic tiles stored in containers are transported by sea on a container ship and arrive at the destination port. At the port (Hin), ceramic tiles are unloaded together with assembled pallets and transported by truck or the like. Ceramic tiles that have been transported to the vicinity of the tile installation site are delivered to the installation site using a forklift while still being mounted on assembled pallets. At the site (L), the belts, etc. that fixed the ceramic tiles are released (cut, etc.) and used as is for laying tiles. Then, the empty assembled pallet may be disassembled into reusable legs, recycled board members, and the like. The recycled board member may be used in a general recycling process for cardboard and the like. Further, the reused leg members are collected in a warehouse for collective leg members. This reusable leg member may be used again. This not only reduces costs but is also environmentally friendly. In addition, communication terminals (e.g., smartphones, mobile phones, etc.) are attached to the assembly pallets, and the communication terminals (e.g., smartphones, mobile phones, etc.) include the attributes (including date of manufacture, place of manufacture, and manufacturer), specifications, and purpose of the tiles to be installed. Location etc. are recorded. This information is sent from this communication terminal to the computer of the management system via the cloud or other communication means (wired or wireless electromagnetic communication means (radio waves, telegraph, signals), etc.). This computer also communicates with the tile installation site, etc., and matches needs. For example, for ceramic tiles manufactured on a prospective basis, it is possible to ascertain the required site and change the destination etc. between shipment and delivery. At the installation site, it is easy to know when the required ceramic tiles will arrive, so the schedule for the installation work can be adjusted. A system for such coordination may include software and may be installed on a computer system, such as a management system computer. Further, an application for this purpose may be installed on the communication terminal.

10 100 200 Assembly pallet 12 Leg member 14 Bottom opening 16 Upper opening 18 Outer surface 20 Inner surface 22 Placement surface 24 Thin cylindrical section 25 Partial female thread section 26 Ring member 30 Conical shaft 32 Bottom surface 34 Notch 50 Lid member 52 Head Part 54 Threaded part 60 Opening 300 Plate member 312 Opening 314 Opening 400 Bottom plate 412 Opening 512 Combination leg member 600 602 Plate member 612 Opening 614 Opening 700 Paper cardboard 800 Honeycomb board 900 Plywood board

Claims

a first leg member having a hollow truncated conical shape with a large diameter end opening and a small diameter end opening;
A second leg member having a general shape of a hollow truncated cone having a large-diameter end opening and a small-diameter end opening, the combination leg member comprising:
The small diameter end side of the first leg member can be fitted by fitting through the large diameter end side opening of the second leg member,
At least a portion of the load in the conical axis direction of the first leg member or the second leg member is transferred from the outer surface of the side wall of the first leg member to the inner surface of the side wall of the second leg member, or An assembled pallet system, wherein the outer and inner surfaces of each side wall are configured to transmit information from the inner surface of the side wall of the second leg member to the outer surface of the side wall of the first leg member. Combination leg member for.
The combination leg member according to claim 1, wherein the first leg member and the second leg member have the same shape.
An engagement structure is provided on the small diameter end side of the first leg member,
The combination leg member according to claim 1 or 2, wherein an engagement structure is provided on the small diameter end side of the second leg member.
The combined leg member according to any one of claims 1 to 3, comprising an engagement member that can engage with the engagement structure of the first leg member and the second leg member engagement structure.
The engagement member can be engaged with the engagement structure of the first leg member and/or the second leg member engagement structure by rotation and/or sliding movement in a direction substantially perpendicular to the conical axis. The combination leg member according to claim 4, wherein the combination leg member is separable from the engagement structure of the first leg member and/or the second leg member engagement structure.
The combined leg member according to claim 4 or 5, wherein the engagement member includes a locking portion that supports rotation and/or movement in a direction substantially perpendicular to the conical axis.
The combination leg member according to any one of claims 1 to 6, wherein the first leg member and the second leg member each further include a caster that can be fixed to a large diameter end or a small diameter end.
A combination leg member comprising the first leg member and the second leg member according to any one of claims 1 to 7;
an assembled pallet system comprising: a first plate member supported by the combination leg member;
The first plate member has a large diameter end side of the first leg member or the second leg formed by the first leg member and/or the second leg member at at least one location on the plate surface thereof. A first assembled pallet can be constructed by being fixed to the small diameter end side of the member,
The first assembled pallet can be disassembled into the first leg member, the second leg member, and the first plate member,
The first assembled pallet is assembled using the disassembled first leg member and the second leg member, the disassembled first plate member, or a different type of second plate member. a different second assembly pallet can be configured;
An assembled pallet system characterized in that there is no need to use screws or bolts during assembly and disassembly as described above.
The first plate member includes a first plate member that is disassembled from at least one existing first assembled pallet and reused, or a first plate member made of recycled material,
At least one of the first leg member and the second leg member is disassembled from at least one existing first assembled pallet, and at least one of the first leg member and the second leg member is reused. 9. The assembled pallet system according to claim 8, comprising at least one of the first leg member and the second leg member made of recycled material.
A conveyance system comprising the assembled pallet system according to claim 8 or 9,
a reuse terminal that is movable together with at least one of the reused plate member and/or the reused first leg member and second leg member;
a supply unit capable of providing at least one of a plate member made of recycled material and/or a first leg member and a second leg member made of recycled material as necessary;
a supply terminal provided in the supply unit;
A loading terminal provided at the loading area where the cargo to be loaded is located;
An unloading terminal provided at the unloading area where luggage is unloaded,
including;
The reuse terminal can receive conditions for reused parts that match the configuration conditions of the assembled pallet that match the cargo information from the loading terminal, where the reused parts are plate members to be reused and/or reused parts. at least one of the first leg member and the second leg member,
The supply terminal can receive conditions for recycled parts that match configuration conditions of an assembled pallet that match the information of the cargo from the loading terminal, where the recycled parts are plate members made of recycled materials and/or recycled parts. at least one of a first leg member and a second leg member made of material,
Information on conveying the reused parts and/or the recycled parts to the loading area is transmitted to the loading terminal,
In the loading area, an assembled pallet is assembled using the reused parts and/or the recycled parts, and the cargo is loaded thereon,
The reuse terminal is transported together with the assembled pallet loaded with the cargo, and transmits cargo information to the unloading terminal.
A method of transporting cargo using the assembled pallet system according to claim 8 or 9.
A transportation method for transporting cargo using the transportation system according to claim 10.
transmitting, from a reuse terminal, information on reused members including at least one of a plate member to be reused and/or a first leg member and a second leg member to be reused;
a step in which the supply unit provides a recycled member including at least one of a plate member made of recycled material and/or a first leg member and a second leg member made of recycled material, as necessary;
transmitting information on the recycled components from a supply terminal provided in the supply unit;
transporting the reusable member together with the reuse terminal to a loading area where cargo to be loaded is located, and transporting the recycle member;
assembling an assembled pallet using the reused parts and the recycled parts in the loading area;
loading the cargo onto the assembly pallet;
transmitting information about the cargo from the loading terminal;
a step in which an unloading terminal provided at a loading area for unloading luggage receives information on the luggage;
A transportation method comprising the step of disassembling the assembled pallet after unloading and causing the reuse terminal to transmit information regarding the cargo, reused parts, and recycled parts.