WO2011040758A2 - Lightweight pallet, mold for producing lightweight pallets, and method for producing lightweight pallets using the mold - Google Patents

Lightweight pallet, mold for producing lightweight pallets, and method for producing lightweight pallets using the mold Download PDF

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Publication number
WO2011040758A2
WO2011040758A2 PCT/KR2010/006641 KR2010006641W WO2011040758A2 WO 2011040758 A2 WO2011040758 A2 WO 2011040758A2 KR 2010006641 W KR2010006641 W KR 2010006641W WO 2011040758 A2 WO2011040758 A2 WO 2011040758A2
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WO
WIPO (PCT)
Prior art keywords
pallet
rib
lightweight
mold
ribs
Prior art date
Application number
PCT/KR2010/006641
Other languages
French (fr)
Korean (ko)
Other versions
WO2011040758A3 (en
Inventor
백대현
Original Assignee
Beak Deahyun
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beak Deahyun filed Critical Beak Deahyun
Priority to CN2010800051747A priority Critical patent/CN102292267A/en
Publication of WO2011040758A2 publication Critical patent/WO2011040758A2/en
Publication of WO2011040758A3 publication Critical patent/WO2011040758A3/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/0004—Rigid pallets without side walls
    • B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
    • B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
    • B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
    • B65D19/0014—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces
    • B65D19/0018—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces and each contact surface having a discrete foot-like shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/58—Snap connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/0004—Rigid pallets without side walls
    • B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
    • B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
    • B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
    • B65D19/0012—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming a continuous plane contact surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7178—Pallets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
    • B65D2519/00034—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00049—Materials for the base surface
    • B65D2519/00069—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00263—Overall construction of the pallet
    • B65D2519/00268—Overall construction of the pallet made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00263—Overall construction of the pallet
    • B65D2519/00273—Overall construction of the pallet made of more than one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00263—Overall construction of the pallet
    • B65D2519/00278—Overall construction of the pallet the load supporting surface and the base surface being identical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00288—Overall construction of the load supporting surface made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00303—Cell type, e.g. honeycomb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00318—Overall construction of the base surface made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00338—Overall construction of the base surface shape of the contact surface of the base contact surface having a discrete foot-like shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00343—Overall construction of the base surface shape of the contact surface of the base contact surface being substantially in the form of a panel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00547—Connections
    • B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
    • B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
    • B65D2519/00567—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements mechanical connection, e.g. snap-fitted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
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    • B65D2519/00935—Details with special means for nesting or stacking
    • B65D2519/0094—Details with special means for nesting or stacking nestable
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
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    • B65D2519/00935—Details with special means for nesting or stacking
    • B65D2519/00955—Details with special means for nesting or stacking stackable
    • B65D2519/00965—Details with special means for nesting or stacking stackable when loaded

Definitions

  • the present invention relates to a lightweight pallet used for loading cargo and unloading with a forklift truck, a lightweight pallet manufacturing die for producing a lightweight pallet, and a lightweight pallet manufacturing method using a lightweight pallet manufacturing die.
  • the pallet is configured in a square shape to provide stability of cargo storage and convenience of transportation when loading, storing and storing cargo.
  • These pallets are classified into plastic pallets, wood pallets, metal pallets and paper pallets depending on the material.
  • Wood pallets are easy to manufacture, but they are heavy, cracking, drying, poisonous, deformable, cracked, and rusted by contact nails in contact with moisture. It can also be a cause.
  • metal pallets have high strength, they are often difficult to manufacture by welding and fixing with bolts during assembly, and pallets are often completed in a state where the fixing position of the piece bolts is missing. The problem is that it is easily corroded by moisture and the like, and particularly has a disadvantage that is impossible with a marine product pallet.
  • the conventional wood pallet the construction of a metal pallet is used to combine two or more foreign matters there is a disadvantage that is not eco-friendly because it is impossible to recycle when damaged or damaged.
  • Synthetic resin pellets are completed in the molding process, so the production process is simple, but in the case of synthetic resin pellets produced by injection molding, there is a disadvantage that the thickness adjustment is impossible after the mold is completed. In addition, there is a disadvantage that the injection molding mold cost is expensive, the weight is 15 ⁇ 20Kg is not much different from the weight of the pallet of other materials.
  • the present invention has been made to solve the above problems, and excellent durability, such as impact absorption rate and tensile strength can prevent deformation and breakage, and can produce a lightweight pallet and a lightweight pallet that can consider the safety of the operator It is an object of the present invention to provide a mold for producing a lightweight pallet and a method for producing a lightweight pallet using the same.
  • the present invention provides a lightweight pallet that can be easily transported, stored, and managed by minimizing weight and volume, a lightweight pallet manufacturing mold capable of producing a lightweight pallet, and a method for manufacturing a lightweight pallet using the same. have.
  • an object of the present invention is to provide an environment-friendly light weight pallet that can be recycled, a mold for producing a light pallet and a light pallet that can produce a light pallet.
  • an object of the present invention is to provide a mold for producing a lightweight pallet and a method for producing a lightweight pallet using the same, which can simplify the manufacturing process of the lightweight pallet and reduce the manufacturing cost.
  • the pallet plate portion is formed in a plate-shaped cargo is loaded on the upper surface;
  • a pallet rib portion bent upward or downward from the pallet plate portion to support the pallet plate portion;
  • a rib heat fusion unit in which both sides of the rib are thermally fused at the middle portion of the rib in the longitudinal direction of the rib so that the rib has the cohesive force in the longitudinal direction or the vertical direction;
  • a plurality of pallet supports which are bent downward from the pallet plate portion to support the pallet plate portion to have a constant height.
  • the pallet rib portion of the present invention is characterized by consisting of a plurality of circular or polygonal ribs formed on the pallet plate portion in multiples inside and outside, and connecting ribs connecting the circular or polygonal ribs between the inside and the outside in two or more directions.
  • outermost circular or polygonal rib of the present invention is characterized by being formed as a hexagonal rib forming a honeycomb structure.
  • the circular or polygonal rib of the present invention is characterized in that a plurality of quadrangle ribs are formed adjacent to the outermost, and a quadrangle rib is also formed in the outermost quadrangle rib.
  • the rib heat-sealed portion of the present invention is narrower than the rib, it characterized in that the upper portion forms a curved downward.
  • the rib heat-sealed portion of the present invention is characterized in that the heat-sealed by the molding process heat and vacuum adsorption pressure.
  • the lightweight pallet of the present invention is characterized in that it is formed of at least one material of polypropylene (polypropylene) or polyethylene (polyethylene).
  • the lightweight pallet of the present invention is characterized by further comprising an outer jaw portion bent upward along the edge of the pallet plate portion.
  • the lightweight pallet of the present invention a plurality of pallet lower secondary support portion that is detachably fastened to the lower end of the pallet support portion, and supports the pallet support portion from below; And a connection rib part connecting and supporting the pallet lower auxiliary support part to each other.
  • the pallet support portion of the present invention is characterized in that the fastening hole is formed at the lower end, the pallet subsidiary support portion is formed with a fastening protrusion formed on the upper end is detached from each other.
  • the pallet subsidiary support portion of the present invention is characterized in that it is formed in a shock absorption stair structure with a step from the top surface to the bottom surface to be fastened with the pallet support.
  • the lightweight pallet of the present invention is characterized in that it further comprises a pallet upper secondary support portion that is detachably fastened to the upper end of the pallet plate portion, and supports the pallet plate portion from above.
  • the lightweight pallet of the present invention is characterized in that the pair is used to combine to face each other.
  • the mold for producing a lightweight pallet includes a mold plate forming a foundation for vacuum molding the lightweight pallet; A protrusion formed on the mold plate portion such that the lightweight pallet has a protruding rib; A protrusion exhaust hole formed through the mold plate along the protrusion; A depression formed in the longitudinal middle portion of the protrusion to thermally seal the longitudinal middle point of the rib; And a depression exhaust hole formed through the mold plate along the bottom surface of the depression.
  • the protrusion of the present invention is characterized in that the width of the portion where the depression is formed gradually decreases.
  • the protrusion of the present invention is characterized in that it consists of a plurality of circular or polygonal projections formed on the mold plate part in multiples inside and outside, and connecting projections connecting the circular or polygonal projections between the inside and the outside in two or more directions.
  • the depression part exhaust hole of the present invention is characterized in that the bottom surface of the depression consists of two holes formed side by side in the longitudinal direction of the protrusion.
  • the softened synthetic resin sheet has a mold plate forming a foundation for vacuum molding lightweight pallets, a protrusion formed on the mold plate so as to have ribs protruding from the lightweight pallet, and a protrusion exhaust hole formed through the mold plate along the protrusion. And a depression formed in the longitudinal middle portion of the protrusion to heat-bond the longitudinal intermediate point of the rib, and a depression exhaust hole formed through the mold plate along the bottom surface of the depression.
  • a sheet adhesion step of bringing it into close contact with a phase After sealing the vacuum molding machine on which the mold is mounted, the air in the vacuum molding machine is rapidly discharged through the projection exhaust hole to form ribs protruding from the synthetic resin sheet, and the residual air on the depression is rapidly discharged through the depression exhaust hole to leave the ribs.
  • the present invention is characterized in that the depression exhaust hole is formed by two holes formed side by side in the longitudinal direction of the protrusion on the bottom surface of the depression.
  • the rib formed by the exhaust step of the present invention a plurality of circular or polygonal ribs formed in the inner and outer double, and the connection rib connecting the circular or polygonal rib between the inside and outside in two or more directions to support the lightweight pallet It is molded to, characterized in that the both sides are heat-sealed at the intermediate point in the longitudinal direction of each rib is formed in a shape having a cohesive force for each rib in the longitudinal direction or the vertical direction.
  • the lightweight pallet of the present invention the mold for producing a lightweight pallet, and the method for producing a lightweight pallet using the same can be excellent in durability, such as impact absorption and tensile strength to prevent deformation and breakage, to consider the safety of the operator There is an effect that can produce a lightweight pallet.
  • the lightweight pallet of the present invention the mold for producing a lightweight pallet and the method for producing a lightweight pallet using the same has the effect of producing a lightweight pallet that is easy to handle, such as transport, storage, management by minimizing weight and volume.
  • the lightweight pallet of the present invention the mold for producing a lightweight pallet, and the manufacturing method of the lightweight pallet using the same has the effect of producing an environmentally friendly lightweight pallet that can be recycled.
  • the mold for producing a light pallet of the present invention and the method for producing a light pallet using the same can simplify the manufacturing process of the light pallet, and there is an effect that can reduce the manufacturing cost.
  • FIG. 1 is a view for explaining a lightweight pallet according to a first embodiment of the present invention.
  • FIG. 2 is an enlarged plan view of a pallet rib portion and a rib heat fusion portion according to the first embodiment of the present invention.
  • FIG 3 is a view showing a rib heat-sealed portion according to the first embodiment of the present invention.
  • FIG. 4 is a view for explaining a lightweight pallet according to a second embodiment of the present invention.
  • FIG. 5 is a plan view showing only the pallet lower auxiliary support and the connecting rib portion according to the second embodiment of the present invention.
  • FIG. 6 is a view showing a state in which cargo is loaded on a lightweight pallet according to a second embodiment of the present invention.
  • FIG. 7 is a view illustrating a fastening structure of the pallet supporter and the pallet subsidiary supporter according to the second embodiment of the present invention.
  • FIG. 8 is a view showing another form of the connecting rib portion according to the second embodiment of the present invention.
  • FIG. 9 is a view illustrating a state in which cargo is loaded on a lightweight pallet employing the connecting rib of FIG. 8.
  • FIG. 10 is a view for explaining a lightweight pallet according to a third embodiment of the present invention.
  • FIG. 11 is a view for explaining a lightweight pallet according to another embodiment of the present invention.
  • FIG. 12 is a view for explaining a lightweight pallet according to another embodiment of the present invention.
  • FIG. 13 is a view for explaining a lightweight pallet according to another embodiment of the present invention.
  • FIG. 14 is an enlarged plan view of a pallet rib portion and a rib heat fusion portion according to another embodiment of the present invention.
  • 15 is a view for explaining a mold for producing a lightweight pallet according to an embodiment of the present invention.
  • 16 is a perspective view showing a mold for producing a lightweight pallet according to an embodiment of the present invention.
  • 17 is an enlarged plan view of a mold for manufacturing a lightweight pallet according to an embodiment of the present invention.
  • FIG. 18 is a flowchart illustrating a method of manufacturing a lightweight pallet according to an embodiment of the present invention.
  • 19 to 22 is a view showing each step of the manufacturing method of the lightweight pallet according to an embodiment of the present invention.
  • fastening hole 150 outer jaw
  • pallet lower auxiliary support parts 161, 162 inner and outer plate parts
  • connecting rib portion 180 pallet upper auxiliary support
  • FIG. 1 is a view for explaining a lightweight pallet according to a first embodiment of the present invention.
  • FIG. 1A is a perspective view of a lightweight pallet according to a first embodiment of the present invention
  • FIG. 1B is a cross-sectional view taken along the line AA ′ of the lightweight pallet of FIG. 1A.
  • each component of the lightweight pallet according to an embodiment of the present invention shown in FIGS. 1 to 14 are partially omitted according to the viewing direction or cross section for better understanding of the description.
  • the lightweight pallet according to the first embodiment of the present invention includes a pallet plate 110, a pallet rib 120, a rib heat-sealed portion 130, and a pallet support 140.
  • the pallet plate part 110 is formed in a plate shape and the cargo is loaded on the upper surface.
  • the pallet rib portion 120 forms a rib shape which is bent upwardly or downwardly from the pallet plate portion 110 and protrudes, and has a structure for increasing the impact absorbing force and tensile strength of the pallet plate portion 110, thereby providing a pallet plate portion ( 110) shall not be bent or damaged by the load of the cargo.
  • the pallet rib 120 includes a plurality of hexagonal ribs forming a honeycomb structure, polygonal ribs formed inside and outside the hexagonal ribs, and connecting ribs connecting hexagonal ribs and polygonal ribs in two or more directions. It is made to increase the tensile strength of the pallet plate 110.
  • the rib heat fusion unit 130 is formed by thermally fusion both sides at the middle portion in the longitudinal direction of each rib of the pallet rib unit 120.
  • the rib heat-sealed portion 130 formed as described above further increases the tensile strength of the pallet plate 110 by allowing each rib of the pallet rib portion 120 to have a cohesive force in the longitudinal direction or the vertical direction. More detailed description of the pallet rib portion 120 and the rib heat-sealed portion 130 will be described later with reference to FIGS.
  • the pallet support part 140 is bent downward from the pallet plate part 110 to support the pallet plate part 110 to have a constant height. Accordingly, the fork of the forklift can be easily inserted below the pallet plate 110.
  • the lightweight pallet according to the first embodiment of the present invention may further include an outer jaw portion 150 which is bent upward along the edge of the pallet plate 110.
  • an outer jaw portion 150 which is bent upward along the edge of the pallet plate 110.
  • the lightweight pallet according to the first embodiment of the present invention may be formed of at least one material of polypropylene or polyethylene. That is, the lightweight pallet formed of each single material and the lightweight pallet formed of a material mixed with each other may be recycled after use, thereby reducing environmental pollution. In addition, these materials are excellent in tensile strength by themselves, in addition to the first embodiment of the present invention, a synthetic resin of a corresponding material may be used. On the other hand, it is also possible to add reinforcing agents to increase the stiffness.
  • the lightweight pallet according to the first embodiment of the present invention may improve the impact absorbing force and the tensile strength by the structure of the pallet rib portion 120 and the formation of the rib heat-sealed portion 130. Therefore, even if the thickness and volume are reduced, the durability can be the same as that of conventional pallets, so that an ultra-light weight pallet can be achieved.
  • the lightweight pallet according to the first embodiment of the present invention since the above-described components of the lightweight pallet according to the first embodiment of the present invention have an integral structure that is bent upward or downward from the pallet plate 110, it is possible to form by vacuum molding. Therefore, the lightweight pallet according to the first embodiment of the present invention can be easily reduced in thickness and volume by being formed by vacuum molding. In addition, since it can be made of a single or a synthetic resin material mixed with a constant, it is excellent in manufacturability and has an environmentally friendly advantage.
  • FIG. 2 and 3 are views for explaining the pallet rib portion and the rib heat-sealed portion according to the first embodiment of the present invention.
  • FIG. 2 is an enlarged plan view of the pallet rib portion and the rib heat fusion portion according to the first embodiment of the present invention
  • FIG. 3 is a view showing the rib heat fusion portion according to the first embodiment of the present invention. a) shows the shape of the rib heat-sealed portion seen from the side, (b) shows the cross section of the rib heat-sealed portion, and (c) shows the longitudinal section of the rib heat-sealed portion.
  • the lightweight pallet according to the first embodiment of the present invention includes a pallet rib portion 120 and the rib heat-sealed portion 130 to improve durability.
  • the pallet rib portion 120 forms a structure that is bent and projected upward or downward of the pallet plate portion 110, and the structure giving the unevenness is basically increased in impact resistance, torsional strength, and the like compared to a flat plate-like member. It has an effect.
  • the pallet rib portion 120 according to the first embodiment of the present invention is provided with a plurality of hexagonal ribs 121 continuously so that a plane-viewed shape forms a honeycomb structure. It is already known that honeycomb structures improve strength and shock absorption.
  • the pallet rib portion 120 is formed with polygonal ribs 122 and 123 which are dually formed inside and outside the hexagonal rib 121.
  • circular ribs 122 are formed in the hexagonal ribs 121
  • rectangular ribs 123 are formed in the circular ribs 122 to form internal and external double polygonal ribs 122 and 123.
  • polygonal ribs 121, 122, 123 including hexagonal ribs 121 are connected in two or more directions by connecting ribs 124.
  • the pallet rib portion 120 according to the first embodiment of the present invention further forms a rib on a flat plate to give irregularities, a point in which the shape of the rib forms a honeycomb structure, and further forms polygonal ribs therein.
  • the rib heat-sealed portion 130 is formed by heat-sealing both sides at the middle portion of the longitudinal direction of each rib of the pallet rib portion 120.
  • the rib heat-sealed portion 130 is formed at two intermediate points of each rib forming a hexagonal side in the hexagonal rib 121, and the circular rib 122 has six locations in total corresponding to the hexagonal rib 121.
  • the rib heat-sealed portion 130 is formed in the ribs, and the rib heat-sealed portion 130 is formed in the connecting rib 124 at one intermediate point.
  • At least one rib heat-sealed portion 130 is formed in each rib.
  • the rib thermal fusion portion can be omitted if the length of the rib is short and sufficiently cohesive even by itself.
  • the rib heat-sealed portion 130 has a narrower width than the rib and has an upper curved portion.
  • heat fusion refers to the bonding of the surface of the two thermoplastic plastics by applying heat and pressure, also called heat bonding. That is, while the rib softens by heat, pressure is applied to both side surfaces and downwards so that the ribs are firmly adhered and have an aggregated shape.
  • the rib heat-sealed portion 130 according to the first embodiment of the present invention can be easily formed by forming by vacuum molding. Specifically, vacuum molding is to close the mold while applying heat to the synthetic resin material, and then to rapidly discharge the air in the vacuum molding machine in which the mold is mounted to form a pallet by vacuum adsorption. At this time, the rib heat-sealed portion 130 can be easily heat-sealed by the molding process heat and vacuum adsorption pressure.
  • the rib heat-sealed portion 130 is firmly bonded to both sides of the rib by thermal fusion, and the rib has cohesive force in the longitudinal direction or the vertical direction at its intermediate point. Accordingly, the attraction force between the ribs is stronger when the load or external impact of the cargo is applied. Therefore, the durability of the lightweight pallet according to the first embodiment of the present invention can be increased even more effectively.
  • Figure 4 to 6 is a view for explaining a lightweight pallet according to a second embodiment of the present invention.
  • Figure 4 (a) is a perspective view of a lightweight pallet according to a second embodiment of the present invention
  • Figure 4 (b) is a cross-sectional view taken along the line B-B 'of the lightweight pallet of Figure 4 (a).
  • Figure 5 is a plan view showing only the pallet lower secondary support and the connecting rib portion according to a second embodiment of the present invention
  • Figure 6 shows a state in which the cargo is loaded on a lightweight pallet according to a second embodiment of the present invention Drawing.
  • the lightweight pallet according to the second embodiment of the present invention is a pallet plate 110, a pallet rib portion 120, rib heat-sealed portion 130, a pallet support portion 140, The outer jaw portion 150, the pallet lower secondary support portion 160 and the connecting rib portion 170 is included.
  • the pallet plate 110, the pallet rib portion 120, the rib heat-sealed portion 130, the pallet support portion 140 and the outer jaw portion 150 of the lightweight pallet according to the second embodiment of the present invention The same or similar material, shape, structure and function of the pallet plate 110, the pallet rib portion 120, the rib heat-sealed portion 130, the pallet support portion 140 and the outer jaw portion 150 of the lightweight pallet according to the embodiment Therefore, a detailed description thereof will be referred to the first embodiment of the present invention described with reference to FIGS. 1 to 3 and will be omitted below.
  • the lightweight pallet according to the second embodiment of the present invention includes a pallet lower auxiliary support 160 and a connecting rib 170 in addition to the above components.
  • the pallet lower auxiliary support 160 and the connecting rib 170 are intended to prevent the pallet support 140 from being deformed or damaged when the load of the cargo increases as shown in FIG. 6.
  • Pallet lower auxiliary support 160 is arranged in a position corresponding to the plurality of pallet support 140, detachably fastened to the bottom of the pallet support 140 and supports the pallet support 140 from below, connecting rib portion
  • the 170 is formed integrally with the lower pallet subsidiary support 160 and supports the lower pallet subsidiary support 160 by connecting to each other.
  • the pallet lower auxiliary support part 160 improves durability of the lower end of the pallet support part 140, and the connecting rib part 170 has the same functions and effects as the pallet rib part 120 described above. Exert. Therefore, when the load or external impact of the cargo is excessive, it is possible to reinforce the durability of the lightweight pallet by employing the pallet lower auxiliary support 160 and the connecting rib portion 170 connecting them. On the other hand, it is possible to increase the cohesion force by forming the rib heat-sealed portion 130 in the connecting rib portion 170. In addition, as shown in FIG.
  • the inner and outer plate portions 161 and 162 except for the pallet lower auxiliary support part 160 and the connecting rib part 170 are formed during vacuum molding, and the second part of the present invention is removed by removing them.
  • the light weight pallet according to the embodiment can be reduced in weight. That is, it is possible to selectively maintain or remove in consideration of both sides of durability and light weight.
  • FIG. 7 is a view illustrating a fastening structure of the pallet supporter and the pallet subsidiary supporter according to the second embodiment of the present invention.
  • the fastening hole 141 is formed at the lower end of the pallet support part 140, and the fastening protrusion 163 is formed at the top of the pallet lower auxiliary support part 160 as shown in FIG. 7 (b).
  • the fastening protrusion 163 may be easily inserted into the fastening hole 141, and may be easily separated. That is, the pallet supporter 140 and the pallet lower auxiliary supporter 160 can be easily detached.
  • the pallet lower auxiliary support 160 may be formed as a shock absorbing stair structure 164 with a step from the top surface to which the pallet support portion 140 is fastened to the bottom surface of the bottom, thereby absorbing the external shock better.
  • the pallet support portion 140 has a function of the buffer action to secure the cargo.
  • it is possible to reduce the height of the pallet support portion 140 has a dual function to maintain the cushioning action and rigidity in a configuration that complements the concern that the pallet support portion 140 is too long and weak during vacuum molding.
  • FIG. 8 is a view showing another form of the connecting rib portion according to the second embodiment of the present invention
  • Figure 9 is a view showing a state in which cargo is loaded on a lightweight pallet employing the connecting rib portion of FIG.
  • the connecting rib portion 170 has a main connecting rib 171 connecting the pallet subsidiary support part 160, while transversely and longitudinally the intermediate points of the main connecting rib 171. It further comprises an auxiliary connecting rib 172 to connect across.
  • the auxiliary connecting rib 172 has a function of reinforcing the tensile strength of the main connecting rib 171, etc., and can be easily changed and designed by the structure according to the weight, arrangement, and the like of the loaded cargo.
  • FIG. 10 is a view for explaining a lightweight pallet according to a third embodiment of the present invention.
  • FIG. 10A is a perspective view of a lightweight pallet according to a third embodiment of the present invention
  • FIG. 10B is a cross-sectional view taken along line C-C 'of the lightweight pallet of FIG.
  • the lightweight pallet according to the third embodiment of the present invention further includes a pallet upper auxiliary support 180 in addition to the components described above in the first or second embodiment of the present invention.
  • the pallet upper auxiliary support part 180 is detachably fastened to the upper end of the pallet plate part 110 and supports the pallet plate part 110 from above. That is, the pallet upper auxiliary support 180 is in close contact with the upper surface of the pallet plate 110, a portion protruding downward is in close contact with the pallet support 140. Accordingly, to achieve a structure to reinforce the thickness of the pallet plate 110 and to improve the durability of the lightweight pallet upper portion.
  • the pallet upper secondary support 180 can be separated and stored again, and can be used again when necessary.
  • all of them can be separated and stored, and the weight is light, which facilitates the handling of the worker, thereby increasing the safety and workability of the worker.
  • the lightweight pallet according to an embodiment of the present invention is excellent in durability, such as impact absorption rate and tensile strength, it is possible to prevent deformation and breakage, and to improve the safety of the operator.
  • the weight of the conventional pallet is 10 ⁇ 15Kg
  • the weight of the lightweight pallet according to an embodiment of the present invention is 4 ⁇ 5Kg. That is, in one embodiment of the present invention it is possible to reduce the weight by increasing the strength of the pallet and reducing the thickness.
  • FIG. 11 is a view for explaining a lightweight pallet according to another embodiment of the present invention. Specifically, FIG. 11A is a perspective view of a lightweight pallet according to another embodiment of the present invention, and FIG. 11B is a cross-sectional view taken along the line D-D ′ of the lightweight pallet of FIG. 11A.
  • a pair of lightweight pallets may be combined to face each other. Accordingly, the pallet lower auxiliary support and the connecting rib portion according to the second embodiment of the present invention may have a structure that can withstand excessive loads.
  • FIG. 12 is a view for explaining a lightweight pallet according to another embodiment of the present invention.
  • the lightweight pallet of the present invention in another embodiment of the present invention can be easily stacked during transportation or storage of the lightweight pallet.
  • the lightweight pallet of the present invention has a structure to allow stable transportation and storage while minimizing a volume by compensating for the problem that the conventional pallet structure occupies a large volume and is not loaded stably during transportation and storage.
  • the pallet lower supporter can also be separated from the pallet support and can be laminated separately.
  • FIGS. 13 and 14 are views for explaining a lightweight pallet according to another embodiment of the present invention.
  • Figure 13 (a) is a perspective view of a lightweight pallet according to another embodiment of the present invention
  • Figure 13 (b) is a side view of a lightweight pallet according to another embodiment of the present invention
  • Figure 14 An enlarged plan view of a pallet rib portion and a rib heat fusion portion according to another embodiment of the present invention.
  • the lightweight pallet is a pallet plate portion 210, pallet rib portion 220, rib heat-sealed portion 230 and the pallet support 240 Include.
  • the pallet rib portion 220 forms a rib shape that is bent upwardly or downwardly from the pallet plate portion 210 to protrude, and thus, a plurality of circular or polygonal ribs formed on the pallet plate portion 210 in and out of the plurality of rib rib portions 220 are formed.
  • a plurality of rectangular ribs 221 are formed adjacent to the dilith and the outermost part, and the rectangular ribs 222 and 223 are also formed in the outermost rectangular ribs.
  • the rectangular ribs 221, 222, and 223 have curved corners to form an approximately rectangular shape, and a connecting rib 224 is formed to connect the rectangular ribs 221, 222, and 223 in two or more directions.
  • a plurality of horizontal auxiliary ribs 225 are continuously formed side by side and vertical auxiliary ribs 226 are appropriately formed on the outer side of the outermost rectangular rib 221, thereby improving smoothness and supporting force.
  • the lightweight pallet according to the embodiment of the present invention can easily change the structure of the pallet rib portion in consideration of the smoothness and the support force. That is, in addition to the hexagon or the square, an example may be formed into a triangle, a circle, or the like, and the auxiliary ribs may be appropriately disposed. Meanwhile, lines continuously displayed in the pallet plate portion 210 in FIGS. 13 and 14 are irregularities for preventing slippage of cargo from the pallet plate portion 210.
  • Figure 15 is a view for explaining a mold for producing a lightweight pallet according to an embodiment of the present invention.
  • Figure 15 is a simplified view of a portion of the mold in order to explain the structural features of the mold for producing a lightweight pallet according to an embodiment of the present invention
  • (a) is a mold for producing a lightweight pallet according to an embodiment of the present invention Is a perspective view of
  • (b) is a side view of a mold for producing lightweight pallets according to an embodiment of the present invention
  • (c) is a plan view of a mold for producing lightweight pallets according to an embodiment of the present invention.
  • the mold for manufacturing a lightweight pallet includes a mold plate part 1110, a protrusion 1120, a protrusion exhaust hole 1130, a depression 1140, and a depression exhaust hole ( 1150).
  • the mold plate portion 1110 forms the basis for vacuum molding the lightweight pallet. That is, the above components are formed in the mold plate part 1110, and serve as a foundation for forming the plate part of the lightweight pallet during vacuum molding.
  • the protrusion 1120 is formed to protrude on the mold plate 1110 so that the lightweight pallet has a rib that protrudes.
  • the protrusion 1120 is for forming ribs that are bent upwards or downwards on the plate of the lightweight pallet.
  • the protrusion 1120 increases the impact resistance, the torsion strength, and the like of the lightweight pallet by giving the protrusions and protrusions to the plate of the lightweight pallet. Can be.
  • the protrusion exhaust hole 1130 is formed through the mold plate 1110 along the protrusion 1120.
  • the protrusion exhaust hole 1130 is used to vacuum-adsorb the synthetic resin sheet to the mold, in particular, the protrusion 1120 during vacuum molding, and is formed along an edge portion of the mold plate part 1110 and the protrusion 1120.
  • the depression 1140 is formed in the longitudinal middle portion of the protrusion 1120 to thermally bond the longitudinal intermediate point of the rib formed by the protrusion 1120.
  • the recess 1140 is recessed to a part of the vertical direction of the protrusion 1120 or the upper surface of the mold plate part 1110 to form a bottom surface.
  • Thermal fusion refers to the application of heat and pressure to the surfaces of two sheets of thermoplastic synthetic resin, also called thermal bonding. By heat fusion, both sides of the longitudinal middle point of the rib are firmly bonded, and the rib has cohesive force in the longitudinal direction or the vertical direction at the intermediate point. Accordingly, when the load or the external impact of the load is applied, the attraction force between the ribs can be stronger to increase the durability of the lightweight pallet even more effectively.
  • the protrusion 1120 has a guide portion 1121 in which the width of the portion where the depression 1140 is formed is gradually reduced.
  • the synthetic resin sheet may have a shape in which the synthetic resin sheet is curved from the protrusion 1120 to the recess 1140 during the vacuum molding, and the synthetic resin sheet softened at the corners formed by the protrusion 1120 and the recess 1140. Can be torn off.
  • the depression exhaust hole 1150 is formed through the mold plate 1110 along the bottom surface of the depression 1140.
  • the depression exhaust hole 1150 functions to thermally seal the rib intermediate point of the lightweight pallet by rapidly discharging residual air on the depression 1140 during vacuum forming.
  • the depression exhaust hole 1150 includes two holes formed side by side in the longitudinal direction of the protrusion 1120 on the bottom surface of the depression 1140. By such a structure, it can heat bond so that it may adhere to the longitudinal direction of a rib.
  • the mold for manufacturing a lightweight pallet includes the depression 1140 and the depression exhaust hole 1150, so that the ribs can be easily heat-sealed during vacuum molding. That is, the synthetic resin sheet may be positioned on the recess 1140 after being softened by heating, and may be vacuum adsorbed through the exhaust operation of the recess exhaust hole 1150.
  • Figure 16 is a perspective view showing a mold for producing a lightweight pallet according to an embodiment of the present invention
  • Figure 17 is an enlarged plan view of the mold for manufacturing a lightweight pallet according to an embodiment of the present invention.
  • the mold for producing a lightweight pallet according to an embodiment of the present invention, as described above with reference to Figure 15, forming a base plate for forming a vacuum for the lightweight pallet 1110, A protrusion 1120 formed on the mold plate 1110 so that the lightweight pallet has a rib that protrudes, a protrusion exhaust hole 1130 formed through the mold plate 1110 along the protrusion 1120, and the length of the rib.
  • the hole 1150 is provided.
  • the protrusion 1120 is an example of a plurality of circular or polygonal protrusions formed on the mold plate part 1110 in multiples inside and outside, and includes a plurality of hexagonal protrusions 1122 and a hexagonal protrusion 1122 forming a honeycomb structure. It consists of a polygonal projection (1123, 1124) formed in a double inside and outside, and a connecting projection (1125) for connecting the hexagonal projection (1122) and polygonal projection (1123, 1124) in two or more directions.
  • the polygonal protrusions 1123 and 1124 have circular protrusions 1123 formed in the hexagonal protrusions 1122, and the rectangular protrusions 1124 are formed in the circular protrusions 1123 to form double polygon protrusions 1123 and 1124. .
  • the depression 1140 is formed by being recessed in the middle portion in the longitudinal direction of each of the protrusions 1122, 1123, 1124, and 1125 of the protrusion 1120.
  • depressions 1140 are formed at two intermediate points of each projection forming a hexagonal side in hexagonal projections 1122, and circular projections 1123 are recessed in six locations in correspondence with hexagonal projections 1122.
  • the part 1140 is formed, and the connection protrusion 1125 is formed with a recess 1130 at one intermediate point.
  • at least one depression 1140 is formed in each of the protrusions 1122, 1123, 1124, and 1125.
  • the depression is not shown in the innermost rectangular projection 1124, if the length of the rib produced by the mold is short and has sufficient cohesive force by itself, it is also possible to omit the depression.
  • Lightweight pallets formed by the structure of the protrusions 1120 and the depressions 1140 are provided with ribs on the flat plate to give the irregularities, and to further form a polygonal rib inside and connect each other with connecting ribs, By heat-sealing the middle of the rib, the impact absorbing force and the tensile strength can be effectively increased.
  • the mold for producing a lightweight pallet according to an embodiment of the present invention can easily manufacture a lightweight pallet with improved impact absorption and tensile strength.
  • the support protrusion 1160 for forming a support portion of the support shape for supporting the lightweight pallet to have a constant height, and bent upwards along the edge of the lightweight pallet plate portion
  • the outer jaw protrusion 1170 for forming the outer jaw portion is further formed.
  • FIG. 18 is a flowchart illustrating a method for manufacturing a lightweight pallet according to an embodiment of the present invention
  • FIGS. 19 to 22 are diagrams illustrating steps of a method for manufacturing a lightweight pallet according to an embodiment of the present invention.
  • the method for manufacturing a lightweight pallet includes a sheet softening step (S410), a sheet contacting step (S420), an exhausting step (S430), and a pallet completing step (S440). do.
  • S410 sheet softening step
  • S420 sheet contacting step
  • S430 exhausting step
  • S440 pallet completing step
  • the thermoplastic synthetic resin sheet 400 is heated and softened by using a heater 410.
  • the synthetic resin sheet 400 is formed of at least one material of polypropylene or polyethylene. Single materials or these can be recycled after use of lightweight pallets of materials that are constantly mixed, thus reducing environmental pollution. In addition, these materials are excellent in tensile strength by themselves, in addition to the embodiment of the present invention may be used a synthetic resin of the corresponding material. On the other hand, it is also possible to add reinforcing agents to increase the stiffness.
  • the softened synthetic resin sheet 400 is brought into close contact with the mold 1100 for lightweight pallet production.
  • the lightweight pallet manufacturing mold 1100 is the same as the lightweight pallet manufacturing mold according to the embodiment of the present invention described above with reference to FIGS. 15 to 17, a detailed description thereof will be referred to the above description and will be omitted below. Let's do it.
  • a vacuum molding machine (not shown) on which the mold 1100 for lightweight pallet manufacturing is mounted is sealed.
  • the vacuum box 420 formed on the rear surface of the mold 1100 for lightweight pallet production and the vacuum pump 430 connected to the vacuum box 420 rapidly discharge air in the vacuum molding machine through the protrusion exhaust hole.
  • Protruding ribs are formed on the synthetic resin sheet 400, and the residual air on the depressions is rapidly discharged through the depression exhaust holes to thermally bond the intermediate points of the ribs.
  • the lightweight pallets thus formed are shown in FIGS. 1 to 14.
  • the sheet formed in the pallet shape is cooled and then separated from the mold.
  • the unnecessary portion is removed to complete the lightweight pallet 500.
  • the mold for producing a light pallet according to an embodiment of the present invention and a method for manufacturing a light pallet using the same have excellent durability, such as impact absorption and tensile strength, thereby preventing deformation and breakage, and enhancing worker safety.
  • Lightweight pallets can be manufactured.
  • the weight of the conventional pallet is 10 ⁇ 15Kg
  • the weight of the lightweight pallet according to an embodiment of the present invention is 4 ⁇ 5Kg.
  • the mold for producing a lightweight pallet according to an embodiment of the present invention and a method for manufacturing a lightweight pallet using the same can be reduced in weight by increasing the strength and reducing the thickness of the pallet.
  • it since it can be molded into a single or a constant mixed synthetic resin material, it is possible to recycle the pallet, it is possible to simplify the manufacturing process of the lightweight pallet and reduce the manufacturing cost.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to a lightweight pallet to be used in loading and unloading goods using a forklift truck, to a mold for producing lightweight pallets, and to a method for producing lightweight pallets using the mold for producing lightweight pallets. The lightweight pallet formed by a vacuum-molding process according to the present invention comprises: a pallet plate unit formed into the shape of a plate having an upper surface on which goods are loaded; a pallet rib unit bent upwardly or downwardly from the pallet plate unit to support the pallet plate unit; a thermally bonded unit formed by thermally bonding both sides of a rib at the intermediate portion of each rib in a lengthwise direction such that the ribs of the pallet rib unit have cohesive force in a lengthwise direction or a vertical direction; and a plurality of pallet support units bent downwardly from the pallet plate unit to support the pallet plate unit such that the pallet plate unit has a predetermined height. Accordingly, the pallet of the present invention has excellent durability such as in terms of shock absorption, tensile strength, and the like, and is thus prevented from being deformed or damaged. The pallet of the present invention can be produced through a simple process at a reduced cost.

Description

경량 팰릿, 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법Light pallets, molds for making light pallets, and methods for manufacturing light pallets using the same
본 발명은 화물을 적재하고 지게차로 하역 작업을 할 때에 사용되는 경량 팰릿과, 경량 팰릿을 제조하기 위한 경량 팰릿 제조용 금형 및 경량 팰릿 제조용 금형을 이용한 경량 팰릿의 제조 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight pallet used for loading cargo and unloading with a forklift truck, a lightweight pallet manufacturing die for producing a lightweight pallet, and a lightweight pallet manufacturing method using a lightweight pallet manufacturing die.
일반적으로, 팰릿은 정방 형상으로 구성되어 화물의 적재, 저장 및 보관시에 화물저장의 안정성과 아울러 운반의 편리성을 제공한다. 이러한 팰릿은 재질에 따라 합성수지 팰릿, 목재 팰릿, 금속 팰릿, 종이 팰릿으로 분류된다. In general, the pallet is configured in a square shape to provide stability of cargo storage and convenience of transportation when loading, storing and storing cargo. These pallets are classified into plastic pallets, wood pallets, metal pallets and paper pallets depending on the material.
목재 팰릿은 제작이 용이하지만, 무겁고, 건조시 갈라짐, 독충의 서식가능, 변형이나 틈, 수분과 접하여 접합못에 의해 녹이 발생하여 썩기 쉽고 강도가 일정치 않아 부분 파손이 발생하고, 환경을 훼손시키는 원인이 되기도 한다. 금속 팰릿은 강도가 우수하지만, 조립시 용접, 피스볼트로 고정함으로써 제작 작업이 용이하지 못하고 피스볼트의 고정 위치가 누락된 상태에서 팰릿이 완성되는 경우가 많아 팰릿 자체가 불량품이 되고 내구성을 상실하게 되는 문제점과, 습기 등으로 쉽게 부식되며 특히 수산물 팰릿으로는 불가능한 단점을 가지고 있다. 또한, 종래의 목재 팰릿, 금속 팰릿의 구성은 두 가지 이상 이물질을 결합하여 사용하므로 파손이나 훼손시 재활용이 불가능하여 친환경적이지 못한 단점이 있다. 합성수지 팰릿은 성형공정으로 완성되므로 생산과정이 단순하지만, 사출성형으로 제작되는 합성수지 팰릿의 경우, 금형 완료 후 두께조정이 불가능한 단점이 있다. 또한, 사출성형 금형비가 고가인 단점이 있으며, 무게가 15~20Kg으로 다른 재질의 팰릿 무게와 별반 차이가 없다. Wood pallets are easy to manufacture, but they are heavy, cracking, drying, poisonous, deformable, cracked, and rusted by contact nails in contact with moisture. It can also be a cause. Although metal pallets have high strength, they are often difficult to manufacture by welding and fixing with bolts during assembly, and pallets are often completed in a state where the fixing position of the piece bolts is missing. The problem is that it is easily corroded by moisture and the like, and particularly has a disadvantage that is impossible with a marine product pallet. In addition, the conventional wood pallet, the construction of a metal pallet is used to combine two or more foreign matters there is a disadvantage that is not eco-friendly because it is impossible to recycle when damaged or damaged. Synthetic resin pellets are completed in the molding process, so the production process is simple, but in the case of synthetic resin pellets produced by injection molding, there is a disadvantage that the thickness adjustment is impossible after the mold is completed. In addition, there is a disadvantage that the injection molding mold cost is expensive, the weight is 15 ~ 20Kg is not much different from the weight of the pallet of other materials.
한편, 종래의 팰릿은 중량이 무거워 이동시 지게차를 이용하는 경우가 많고 충격시 작업자가 크게 다칠 위험요소가 존재한다. 또한, 화물이 수출되는 경우에 팰릿도 같이 이동하므로 회수가 불가능하고, 항공 화물의 경우 팰릿 중량도 항공화물 요금에 영향을 미치기 때문에 팰릿의 경량화가 요구된다.On the other hand, conventional pallets are heavy and often use a forklift when moving, and there is a risk of serious injury to the operator during impact. In addition, when the cargo is exported, the pallet is also moved together, so it is impossible to recover, and in the case of air freight, the weight of the pallet also affects the air freight rate, so the weight of the pallet is required.
본 발명은 상기의 문제를 해결하기 위해서 안출된 것으로, 충격흡수율 및 인장강도 등 내구성이 우수하여 변형 및 파손을 방지할 수 있고, 작업자의 안전을 고려할 수 있는 경량 팰릿과, 경량 팰릿을 제작할 수 있는 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법을 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, and excellent durability, such as impact absorption rate and tensile strength can prevent deformation and breakage, and can produce a lightweight pallet and a lightweight pallet that can consider the safety of the operator It is an object of the present invention to provide a mold for producing a lightweight pallet and a method for producing a lightweight pallet using the same.
또한, 본 발명은 중량 및 체적을 최소화하여 운반, 보관, 관리 등의 취급이 용이한 경량 팰릿과, 경량 팰릿을 제작할 수 있는 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법을 제공하는데 그 목적이 있다. In addition, the present invention provides a lightweight pallet that can be easily transported, stored, and managed by minimizing weight and volume, a lightweight pallet manufacturing mold capable of producing a lightweight pallet, and a method for manufacturing a lightweight pallet using the same. have.
또한, 본 발명은 재활용이 가능한 친환경의 경량 팰릿과, 경량 팰릿을 제작할 수 있는 경량 팰릿 제조용 금형 및 경량 팰릿의 제조 방법을 제공하는데 그 목적이 있다.In addition, an object of the present invention is to provide an environment-friendly light weight pallet that can be recycled, a mold for producing a light pallet and a light pallet that can produce a light pallet.
또한, 본 발명은 경량 팰릿의 제조 공정을 간단하게 할 수 있으며, 제조 비용을 절감할 수 있는 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법을 제공하는데 그 목적이 있다.In addition, an object of the present invention is to provide a mold for producing a lightweight pallet and a method for producing a lightweight pallet using the same, which can simplify the manufacturing process of the lightweight pallet and reduce the manufacturing cost.
본 발명이 해결하려는 기술적 과제들은 이상에서 언급한 과제로 제한되지 않으며, 여기에 언급되지 않은 본 발명이 해결하려는 또 다른 과제들은 아래의 기재로부터 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.Technical problem to be solved by the present invention is not limited to the above-mentioned problem, another problem to be solved by the present invention not mentioned here is to those skilled in the art from the following description. It will be clearly understood.
본 발명에 따른 진공성형으로 형성되는 경량 팰릿은, 판상으로 형성되어 상면에 화물이 적재되는 팰릿 판부; 팰릿 판부로부터 상방 또는 하방으로 절곡되어, 팰릿 판부를 지지하는 팰릿 리브부; 팰릿 리브부의 리브가 길이 방향 또는 상하 방향에 대해 응집력을 갖도록 각 리브의 길이 방향 중간 부분에서 양측면이 열융착되는 리브 열융착부; 및 팰릿 판부로부터 하방으로 절곡되어, 팰릿 판부가 일정한 높이를 갖도록 지지하는 복수의 팰릿 지지부를 포함한다.Lightweight pallet formed by vacuum forming according to the present invention, the pallet plate portion is formed in a plate-shaped cargo is loaded on the upper surface; A pallet rib portion bent upward or downward from the pallet plate portion to support the pallet plate portion; A rib heat fusion unit in which both sides of the rib are thermally fused at the middle portion of the rib in the longitudinal direction of the rib so that the rib has the cohesive force in the longitudinal direction or the vertical direction; And a plurality of pallet supports which are bent downward from the pallet plate portion to support the pallet plate portion to have a constant height.
또한, 본 발명의 팰릿 리브부는, 팰릿 판부 상에 내외 다중으로 형성되는 복수의 원형 또는 다각형 리브와, 내외 사이의 원형 또는 다각형 리브를 둘이상의 방향에서 연결하는 연결 리브로 이루어지는 것을 특징으로 한다.In addition, the pallet rib portion of the present invention is characterized by consisting of a plurality of circular or polygonal ribs formed on the pallet plate portion in multiples inside and outside, and connecting ribs connecting the circular or polygonal ribs between the inside and the outside in two or more directions.
또한, 본 발명의 최외곽의 원형 또는 다각형 리브는 벌집 구조를 이루는 육각형 리브로 형성되는 것을 특징으로 한다.In addition, the outermost circular or polygonal rib of the present invention is characterized by being formed as a hexagonal rib forming a honeycomb structure.
또한, 본 발명의 원형 또는 다각형 리브는, 최외곽에 사각형 리브가 이웃하여 복수개 형성되고, 최외곽의 사각형 리브 내에도 사각형 리브가 이중으로 형성되는 것을 특징으로 한다.In addition, the circular or polygonal rib of the present invention is characterized in that a plurality of quadrangle ribs are formed adjacent to the outermost, and a quadrangle rib is also formed in the outermost quadrangle rib.
또한, 본 발명의 리브 열융착부는 리브보다 좁은 폭이고, 상부가 하방으로 만곡된 형상을 이루는 것을 특징으로 한다.In addition, the rib heat-sealed portion of the present invention is narrower than the rib, it characterized in that the upper portion forms a curved downward.
또한, 본 발명의 리브 열융착부는 성형가공열과 진공흡착압에 의해 열융착되는 것을 특징으로 한다.In addition, the rib heat-sealed portion of the present invention is characterized in that the heat-sealed by the molding process heat and vacuum adsorption pressure.
또한, 본 발명의 경량 팰릿은 폴리프로필렌(polypropylene) 또는 폴리에틸렌(polyethylene) 중 적어도 어느 하나의 재질로 형성되는 것을 특징으로 한다.In addition, the lightweight pallet of the present invention is characterized in that it is formed of at least one material of polypropylene (polypropylene) or polyethylene (polyethylene).
또한, 본 발명의 경량 팰릿은, 팰릿 판부의 테두리를 따라 상방으로 절곡되는 외곽턱부를 더 포함하는 것을 특징으로 한다.In addition, the lightweight pallet of the present invention is characterized by further comprising an outer jaw portion bent upward along the edge of the pallet plate portion.
또한, 본 발명의 경량 팰릿은, 팰릿 지지부의 하단에 탈착 가능하게 체결되며, 팰릿 지지부를 하방에서 지지하는 복수의 팰릿 하부보조 지지부; 및 팰릿 하부보조 지지부를 서로 연결하여 지지하는 연결 리브부를 더 포함하는 것을 특징으로 한다.In addition, the lightweight pallet of the present invention, a plurality of pallet lower secondary support portion that is detachably fastened to the lower end of the pallet support portion, and supports the pallet support portion from below; And a connection rib part connecting and supporting the pallet lower auxiliary support part to each other.
또한, 본 발명의 팰릿 지지부는 하단에 체결홀이 형성되고, 팰릿 하부보조 지지부는 상단에 체결 돌기가 형성되어 서로 탈착되는 것을 특징으로 한다.In addition, the pallet support portion of the present invention is characterized in that the fastening hole is formed at the lower end, the pallet subsidiary support portion is formed with a fastening protrusion formed on the upper end is detached from each other.
또한, 본 발명의 팰릿 하부보조 지지부는, 팰릿 지지부와 체결되는 상단면으로부터 하단면까지 단차를 두어 충격흡수계단 구조로 형성되는 것을 특징으로 한다.In addition, the pallet subsidiary support portion of the present invention is characterized in that it is formed in a shock absorption stair structure with a step from the top surface to the bottom surface to be fastened with the pallet support.
또한, 본 발명의 경량 팰릿은, 팰릿 판부의 상단에 탈착 가능하게 체결되며, 팰릿 판부를 상방에서 지지하는 팰릿 상부보조 지지부를 더 포함하는 것을 특징으로 한다.In addition, the lightweight pallet of the present invention is characterized in that it further comprises a pallet upper secondary support portion that is detachably fastened to the upper end of the pallet plate portion, and supports the pallet plate portion from above.
또한, 본 발명의 경량 팰릿은 한 쌍이 서로 마주보도록 결합하여 사용되는 것을 특징으로 한다.In addition, the lightweight pallet of the present invention is characterized in that the pair is used to combine to face each other.
본 발명에 따른 경량 팰릿 제조용 금형은, 경량 팰릿을 진공성형하기 위한 토대를 이루는 금형 판부; 경량 팰릿이 돌출된 리브를 갖도록 금형 판부 상에 형성되는 돌출부; 돌출부를 따라 금형 판부를 관통하여 형성되는 돌출부 배기홀; 리브의 길이 방향 중간 지점을 열융착시키도록 돌출부의 길이 방향 중간 부분에 형성되는 함몰부; 및 함몰부의 바닥면을 따라 금형 판부를 관통하여 형성되는 함몰부 배기홀을 포함한다.The mold for producing a lightweight pallet according to the present invention includes a mold plate forming a foundation for vacuum molding the lightweight pallet; A protrusion formed on the mold plate portion such that the lightweight pallet has a protruding rib; A protrusion exhaust hole formed through the mold plate along the protrusion; A depression formed in the longitudinal middle portion of the protrusion to thermally seal the longitudinal middle point of the rib; And a depression exhaust hole formed through the mold plate along the bottom surface of the depression.
또한, 본 발명의 돌출부는 함몰부가 형성되는 부분의 폭이 점진적으로 감소하는 것을 특징으로 한다.In addition, the protrusion of the present invention is characterized in that the width of the portion where the depression is formed gradually decreases.
또한, 본 발명의 돌출부는, 금형 판부 상에 내외 다중으로 형성되는 복수의 원형 또는 다각형 돌기와, 내외 사이의 원형 또는 다각형 돌기를 둘이상의 방향에서 연결하는 연결 돌기로 이루어지는 것을 특징으로 한다.In addition, the protrusion of the present invention is characterized in that it consists of a plurality of circular or polygonal projections formed on the mold plate part in multiples inside and outside, and connecting projections connecting the circular or polygonal projections between the inside and the outside in two or more directions.
또한, 본 발명의 함몰부 배기홀은 함몰부의 바닥면에, 돌출부의 길이 방향으로 나란히 형성되는 두 개의 홀로 이루어지는 것을 특징으로 한다.In addition, the depression part exhaust hole of the present invention is characterized in that the bottom surface of the depression consists of two holes formed side by side in the longitudinal direction of the protrusion.
본 발명에 따른 경량 팰릿의 제조 방법은, 열가소성 합성수지 시트를 가열하여 연화시키는 시트 연화 단계; 연화된 합성수지 시트를, 경량 팰릿을 진공성형하기 위한 토대를 이루는 금형 판부와, 경량 팰릿이 돌출된 리브를 갖도록 금형 판부 상에 형성되는 돌출부와, 돌출부를 따라 금형 판부를 관통하여 형성되는 돌출부 배기홀과, 리브의 길이 방향 중간 지점을 열융착시키도록 돌출부의 길이 방향 중간 부분에 형성되는 함몰부와, 함몰부의 바닥면을 따라 금형 판부를 관통하여 형성되는 함몰부 배기홀을 포함하는 경량 팰릿 제조용 금형 상에 밀착시키는 시트 밀착 단계; 금형이 장착되는 진공성형기를 밀폐한 후, 돌출부 배기홀을 통해 진공성형기 내의 공기를 급속 배출하여 합성수지 시트에 돌출된 리브를 형성하며, 함몰부 배기홀을 통해 함몰부 상의 잔류 공기를 급속 배출하여 리브의 중간 지점을 열융착시키는 배기 단계; 및 팰릿 형상으로 성형된 시트를 냉각한 후 금형으로부터 이탈시키는 팰릿완성 단계를 포함한다.Method for producing a lightweight pallet according to the present invention, the sheet softening step of heating and softening the thermoplastic synthetic resin sheet; The softened synthetic resin sheet has a mold plate forming a foundation for vacuum molding lightweight pallets, a protrusion formed on the mold plate so as to have ribs protruding from the lightweight pallet, and a protrusion exhaust hole formed through the mold plate along the protrusion. And a depression formed in the longitudinal middle portion of the protrusion to heat-bond the longitudinal intermediate point of the rib, and a depression exhaust hole formed through the mold plate along the bottom surface of the depression. A sheet adhesion step of bringing it into close contact with a phase; After sealing the vacuum molding machine on which the mold is mounted, the air in the vacuum molding machine is rapidly discharged through the projection exhaust hole to form ribs protruding from the synthetic resin sheet, and the residual air on the depression is rapidly discharged through the depression exhaust hole to leave the ribs. An exhausting step of thermally fusion of the intermediate point of the; And a pallet completion step of cooling the sheet formed into a pallet shape and then leaving the mold.
또한, 본 발명은 함몰부 배기홀을 함몰부의 바닥면에서 돌출부의 길이 방향으로 나란히 형성되는 두 개의 홀로 형성하는 것을 특징으로 한다.In addition, the present invention is characterized in that the depression exhaust hole is formed by two holes formed side by side in the longitudinal direction of the protrusion on the bottom surface of the depression.
또한, 본 발명의 배기 단계에 의해 형성되는 리브는, 내외 이중으로 형성되는 복수의 원형 또는 다각형 리브와, 내외 사이의 원형 또는 다각형 리브를 둘이상의 방향에서 연결하는 연결 리브로 이루어져 경량 팰릿을 지지하는 형상으로 성형되며, 각 리브의 길이 방향 중간 지점에서 양측면이 열융착되어 각 리브가 길이 방향 또는 상하 방향에 대해 응집력을 갖는 형상으로 성형되는 것을 특징으로 한다.In addition, the rib formed by the exhaust step of the present invention, a plurality of circular or polygonal ribs formed in the inner and outer double, and the connection rib connecting the circular or polygonal rib between the inside and outside in two or more directions to support the lightweight pallet It is molded to, characterized in that the both sides are heat-sealed at the intermediate point in the longitudinal direction of each rib is formed in a shape having a cohesive force for each rib in the longitudinal direction or the vertical direction.
상기 기술적 해결방법에 의해, 본 발명의 경량 팰릿, 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법은 충격흡수율 및 인장강도 등 내구성이 우수하여 변형 및 파손을 방지할 수 있고, 작업자의 안전을 고려할 수 있는 경량 팰릿을 제작할 수 있는 효과가 있다.By the above technical solution, the lightweight pallet of the present invention, the mold for producing a lightweight pallet, and the method for producing a lightweight pallet using the same can be excellent in durability, such as impact absorption and tensile strength to prevent deformation and breakage, to consider the safety of the operator There is an effect that can produce a lightweight pallet.
또한, 본 발명의 경량 팰릿, 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법은 중량 및 체적을 최소화하여 운반, 보관, 관리 등의 취급이 용이한 경량 팰릿을 제작할 수 있는 효과가 있다.In addition, the lightweight pallet of the present invention, the mold for producing a lightweight pallet and the method for producing a lightweight pallet using the same has the effect of producing a lightweight pallet that is easy to handle, such as transport, storage, management by minimizing weight and volume.
또한, 본 발명의 경량 팰릿, 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법은 재활용이 가능한 친환경의 경량 팰릿을 제작할 수 있는 효과가 있다.In addition, the lightweight pallet of the present invention, the mold for producing a lightweight pallet, and the manufacturing method of the lightweight pallet using the same has the effect of producing an environmentally friendly lightweight pallet that can be recycled.
또한, 본 발명의 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법은 경량 팰릿의 제조 공정을 간단하게 할 수 있으며, 제조 비용을 절감할 수 있는 효과가 있다.In addition, the mold for producing a light pallet of the present invention and the method for producing a light pallet using the same can simplify the manufacturing process of the light pallet, and there is an effect that can reduce the manufacturing cost.
도 1은 본 발명의 제1 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다.1 is a view for explaining a lightweight pallet according to a first embodiment of the present invention.
도 2는 본 발명의 제1 실시예에 따른 팰릿 리브부 및 리브 열융착부를 확대하여 본 평면도이다.2 is an enlarged plan view of a pallet rib portion and a rib heat fusion portion according to the first embodiment of the present invention.
도 3은 본 발명의 제1 실시예에 따른 리브 열융착부를 나타낸 도면이다.3 is a view showing a rib heat-sealed portion according to the first embodiment of the present invention.
도 4는 본 발명의 제2 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다. 4 is a view for explaining a lightweight pallet according to a second embodiment of the present invention.
도 5는 본 발명의 제2 실시예에 따른 팰릿 하부보조 지지부와 연결 리브부만을 나타낸 평면도이다.5 is a plan view showing only the pallet lower auxiliary support and the connecting rib portion according to the second embodiment of the present invention.
도 6은 본 발명의 제2 실시예에 따른 경량 팰릿에 화물이 적재된 상태를 도시한 도면이다.6 is a view showing a state in which cargo is loaded on a lightweight pallet according to a second embodiment of the present invention.
도 7은 본 발명의 제2 실시예에 따른 팰릿 지지부와 팰릿 하부보조 지지부의 체결 구조를 설명하기 위한 도면이다.7 is a view illustrating a fastening structure of the pallet supporter and the pallet subsidiary supporter according to the second embodiment of the present invention.
도 8은 본 발명의 제2 실시예에 따른 연결 리브부의 다른 형태를 나타낸 도면이다.8 is a view showing another form of the connecting rib portion according to the second embodiment of the present invention.
도 9는 도 8의 연결 리브부를 채용한 경량 팰릿에 화물이 적재된 상태를 도시한 도면이다.FIG. 9 is a view illustrating a state in which cargo is loaded on a lightweight pallet employing the connecting rib of FIG. 8.
도 10은 본 발명의 제3 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다.10 is a view for explaining a lightweight pallet according to a third embodiment of the present invention.
도 11은 본 발명의 다른 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다.11 is a view for explaining a lightweight pallet according to another embodiment of the present invention.
도 12는 본 발명의 또 다른 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다.12 is a view for explaining a lightweight pallet according to another embodiment of the present invention.
도 13은 본 발명의 또 다른 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다. 13 is a view for explaining a lightweight pallet according to another embodiment of the present invention.
도 14는 본 발명의 또 다른 실시예에 따른 팰릿 리브부 및 리브 열융착부를 확대하여 본 평면도이다.14 is an enlarged plan view of a pallet rib portion and a rib heat fusion portion according to another embodiment of the present invention.
도 15는 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형을 설명하기 위한 도면이다.15 is a view for explaining a mold for producing a lightweight pallet according to an embodiment of the present invention.
도 16은 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형을 나타낸 사시도이다.16 is a perspective view showing a mold for producing a lightweight pallet according to an embodiment of the present invention.
도 17은 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형을 확대하여 본 평면도이다.17 is an enlarged plan view of a mold for manufacturing a lightweight pallet according to an embodiment of the present invention.
도 18은 본 발명의 일실시예에 따른 경량 팰릿의 제조 방법을 나타낸 플로차트이다.18 is a flowchart illustrating a method of manufacturing a lightweight pallet according to an embodiment of the present invention.
도 19 내지 도 22는 본 발명의 일실시예에 따른 경량 팰릿의 제조 방법을 각 단계별로 나타낸 도면이다.19 to 22 is a view showing each step of the manufacturing method of the lightweight pallet according to an embodiment of the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
110, 210 : 팰릿 판부 120, 220 : 팰릿 리브부110, 210: pallet plate part 120, 220: pallet rib part
121 : 육각형 리브 122 : 원형 리브121: hexagonal rib 122: round rib
123, 221, 222, 223 : 사각형 리브 124, 224 : 연결 리브123, 221, 222, 223: square rib 124, 224: connecting rib
130, 230 : 리브 열융착부 140, 240 : 팰릿 지지부130, 230: rib heat-sealed portion 140, 240: pallet support portion
141 : 체결홀 150 : 외곽턱부141: fastening hole 150: outer jaw
160 : 팰릿 하부보조 지지부 161, 162 : 내외곽의 판부160: pallet lower auxiliary support parts 161, 162: inner and outer plate parts
163 : 체결 돌기 164 : 충격흡수계단 구조163: fastening protrusion 164: shock absorption staircase structure
170 : 연결 리브부 180 : 팰릿 상부보조 지지부170: connecting rib portion 180: pallet upper auxiliary support
225 : 수평 보조 리브 226 : 수직 보조 리브225: horizontal auxiliary rib 226: vertical auxiliary rib
400 : 합성수지 시트 410 : 히터400: synthetic resin sheet 410: heater
420 : 진공 박스 430 : 진공 펌프420: vacuum box 430: vacuum pump
500 : 경량 팰릿 1100 : 경량 팰릿 제조용 금형500: Lightweight pallet 1100: Lightweight pallet manufacturing mold
1110 : 금형 판부 1120 : 돌출부1110: mold plate portion 1120: protrusion
1121 : 가이드부 1122 : 육각형 돌기1121: guide portion 1122: hexagonal projection
1123 : 원형 돌기 1124 : 사각형 돌기1123: round projection 1124: square projection
1125 : 연결 돌기 1130 : 돌출부 배기홀1125: connecting projection 1130: protrusion exhaust hole
1140 : 함몰부 1150 : 함몰부 배기홀1140: depression 1150: depression exhaust hole
이상과 같은 본 발명에 대한 기술적 과제, 기술적 해결방법, 유리한 효과를 포함한 구체적인 사항들은 다음에 기재할 실시예 및 도면들에 포함되어 있다. 본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. Specific matters, including technical problems, technical solutions, and advantageous effects of the present invention as described above are included in the following embodiments and drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.
이하, 첨부된 도면을 참조하여 본 발명을 보다 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.
<제1 실시예><First Embodiment>
도 1은 본 발명의 제1 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다. 구체적으로, 도 1의 (a)는 본 발명의 제1 실시예에 따른 경량 팰릿의 사시도이고, 도 1의 (b)는 도 1의 (a)의 경량 팰릿을 A-A' 절취선으로 자른 단면도이다. 또한, 도 1 내지 도 14에 도시된 본 발명의 일실시예에 따른 경량 팰릿의 각 구성요소들은, 설명의 이해를 돕기 위해, 보는 방향 또는 단면에 따라 일부 생략됨을 미리 언급한다.1 is a view for explaining a lightweight pallet according to a first embodiment of the present invention. Specifically, FIG. 1A is a perspective view of a lightweight pallet according to a first embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along the line AA ′ of the lightweight pallet of FIG. 1A. In addition, it is mentioned in advance that each component of the lightweight pallet according to an embodiment of the present invention shown in FIGS. 1 to 14 are partially omitted according to the viewing direction or cross section for better understanding of the description.
도 1에 도시된 바와 같이, 본 발명의 제1 실시예에 따른 경량 팰릿은 팰릿 판부(110), 팰릿 리브부(120), 리브 열융착부(130) 및 팰릿 지지부(140)를 포함한다.As shown in FIG. 1, the lightweight pallet according to the first embodiment of the present invention includes a pallet plate 110, a pallet rib 120, a rib heat-sealed portion 130, and a pallet support 140.
팰릿 판부(110)는 판상으로 형성되어 상면에 화물이 적재된다.The pallet plate part 110 is formed in a plate shape and the cargo is loaded on the upper surface.
팰릿 리브부(120)는 팰릿 판부(110)로부터 상방 또는 하방으로 절곡되어 돌출된 리브 형상을 이루는 것과 아울러, 팰릿 판부(110)의 충격흡수력 및 인장강도를 증가시키는 구조를 가짐으로써, 팰릿 판부(110)가 화물의 하중에 의해 휘어지거나 파손되지 않도록 지지한다. 예컨대, 도 1과 같이 팰릿 리브부(120)는 벌집 구조를 이루는 복수의 육각형 리브와, 육각형 리브 내에서 내외 이중으로 형성되는 다각형 리브와, 육각형 리브 및 다각형 리브를 둘이상의 방향에서 연결하는 연결 리브로 이루어져 팰릿 판부(110)의 인장강도를 증가시킨다.The pallet rib portion 120 forms a rib shape which is bent upwardly or downwardly from the pallet plate portion 110 and protrudes, and has a structure for increasing the impact absorbing force and tensile strength of the pallet plate portion 110, thereby providing a pallet plate portion ( 110) shall not be bent or damaged by the load of the cargo. For example, as shown in FIG. 1, the pallet rib 120 includes a plurality of hexagonal ribs forming a honeycomb structure, polygonal ribs formed inside and outside the hexagonal ribs, and connecting ribs connecting hexagonal ribs and polygonal ribs in two or more directions. It is made to increase the tensile strength of the pallet plate 110.
리브 열융착부(130)는 팰릿 리브부(120)의 각 리브의 길이 방향 중간 부분에서 양측면이 열융착되어 형성된다. 이와 같이 형성되는 리브 열융착부(130)는 팰릿 리브부(120)의 각각의 리브가 길이 방향 또는 상하 방향에 대해 응집력을 갖도록 함으로써, 팰릿 판부(110)의 인장강도를 더욱더 증가시킨다. 팰릿 리브부(120) 및 리브 열융착부(130)에 관한 보다 상세한 설명은 이후 도 2 및 도 3을 통하여 후술하기로 한다.The rib heat fusion unit 130 is formed by thermally fusion both sides at the middle portion in the longitudinal direction of each rib of the pallet rib unit 120. The rib heat-sealed portion 130 formed as described above further increases the tensile strength of the pallet plate 110 by allowing each rib of the pallet rib portion 120 to have a cohesive force in the longitudinal direction or the vertical direction. More detailed description of the pallet rib portion 120 and the rib heat-sealed portion 130 will be described later with reference to FIGS.
팰릿 지지부(140)는 팰릿 판부(110)로부터 하방으로 절곡되어, 팰릿 판부(110)가 일정한 높이를 갖도록 지지한다. 이에 따라, 팰릿 판부(110)의 하측으로 지게차(forklift)의 포크(fork)를 용이하게 삽입할 수 있다.The pallet support part 140 is bent downward from the pallet plate part 110 to support the pallet plate part 110 to have a constant height. Accordingly, the fork of the forklift can be easily inserted below the pallet plate 110.
또한, 본 발명의 제1 실시예에 따른 경량 팰릿은 팰릿 판부(110)의 테두리를 따라 상방으로 절곡되는 외곽턱부(150)를 더 포함하는 것이 가능하다. 외곽턱부(150)를 구비함으로써, 팰릿 판부(110)의 테두리 부분에서 비틀림 강도를 증가시키는 한편, 적재되는 화물의 이탈을 방지할 수 있다.In addition, the lightweight pallet according to the first embodiment of the present invention may further include an outer jaw portion 150 which is bent upward along the edge of the pallet plate 110. By providing the outer jaw portion 150, while increasing the torsional strength at the edge portion of the pallet plate 110, it is possible to prevent the separation of the loaded cargo.
또한, 본 발명의 제1 실시예에 따른 경량 팰릿은 폴리프로필렌(polypropylene) 또는 폴리에틸렌(polyethylene) 중 적어도 어느 하나의 재질로 형성하는 것이 가능하다. 즉, 상기 각각의 단일 재질로 형성하는 경량 팰릿 및 서로를 일정하게 혼합한 재질로 형성하는 경량 팰릿은 사용한 후 이를 재활용할 수 있으므로, 환경오염을 저감시킬 수 있다. 또한, 이 재질들은 그 자체로도 인장강도가 우수하며, 본 발명의 제1 실시예에서는 이외에도 이에 상응하는 재질의 합성수지를 사용하여도 무방하다. 한편, 강성을 증가시키기 위해 보강제를 첨가하는 것도 가능하다.In addition, the lightweight pallet according to the first embodiment of the present invention may be formed of at least one material of polypropylene or polyethylene. That is, the lightweight pallet formed of each single material and the lightweight pallet formed of a material mixed with each other may be recycled after use, thereby reducing environmental pollution. In addition, these materials are excellent in tensile strength by themselves, in addition to the first embodiment of the present invention, a synthetic resin of a corresponding material may be used. On the other hand, it is also possible to add reinforcing agents to increase the stiffness.
이와 같이, 본 발명의 제1 실시예에 따른 경량 팰릿은 팰릿 리브부(120)의 구조와, 리브 열융착부(130)의 형성에 의해 충격흡수력 및 인장강도를 향상시킬 수 있다. 따라서, 두께와 체적을 줄이더라도 종래의 팰릿과 동일한 내구성을 가질 수 있으므로, 초경량의 팰릿을 도모할 수 있다.As such, the lightweight pallet according to the first embodiment of the present invention may improve the impact absorbing force and the tensile strength by the structure of the pallet rib portion 120 and the formation of the rib heat-sealed portion 130. Therefore, even if the thickness and volume are reduced, the durability can be the same as that of conventional pallets, so that an ultra-light weight pallet can be achieved.
또한, 본 발명의 제1 실시예에 따른 경량 팰릿의 상술한 구성 요소들은 팰릿 판부(110)로부터 상방 또는 하방으로 절곡되는 일체의 구조를 가지기 때문에, 진공성형으로 형성하는 것이 가능하다. 따라서, 본 발명의 제1 실시예에 따른 경량 팰릿은 진공성형으로 형성되는 것에 의해 두께와 체적을 용이하게 줄일 수 있다. 덧붙여, 단일 또는 이들을 일정하게 혼합한 합성수지재로 제작할 수 있으므로, 제작성이 우수하며 친환경적인 장점을 가진다.In addition, since the above-described components of the lightweight pallet according to the first embodiment of the present invention have an integral structure that is bent upward or downward from the pallet plate 110, it is possible to form by vacuum molding. Therefore, the lightweight pallet according to the first embodiment of the present invention can be easily reduced in thickness and volume by being formed by vacuum molding. In addition, since it can be made of a single or a synthetic resin material mixed with a constant, it is excellent in manufacturability and has an environmentally friendly advantage.
도 2 및 도 3은 본 발명의 제1 실시예에 따른 팰릿 리브부 및 리브 열융착부를 설명하기 위한 도면이다. 구체적으로, 도 2는 본 발명의 제1 실시예에 따른 팰릿 리브부 및 리브 열융착부를 확대하여 본 평면도이고, 도 3은 본 발명의 제1 실시예에 따른 리브 열융착부를 나타낸 도면으로서, (a)는 측면에서 본 리브 열융착부의 형상을 나타낸 것이고, (b)는 리브 열융착부의 횡단면을 나타낸 것이며, (c)는 리브 열융착부의 종단면을 나타낸 것이다.2 and 3 are views for explaining the pallet rib portion and the rib heat-sealed portion according to the first embodiment of the present invention. Specifically, FIG. 2 is an enlarged plan view of the pallet rib portion and the rib heat fusion portion according to the first embodiment of the present invention, and FIG. 3 is a view showing the rib heat fusion portion according to the first embodiment of the present invention. a) shows the shape of the rib heat-sealed portion seen from the side, (b) shows the cross section of the rib heat-sealed portion, and (c) shows the longitudinal section of the rib heat-sealed portion.
도 2 및 도 3에 도시된 바와 같이, 본 발명의 제1 실시예에 따른 경량 팰릿은 내구성을 향상시키기 위해 팰릿 리브부(120)와 리브 열융착부(130)를 구비한다.As shown in Figures 2 and 3, the lightweight pallet according to the first embodiment of the present invention includes a pallet rib portion 120 and the rib heat-sealed portion 130 to improve durability.
팰릿 리브부(120)는 팰릿 판부(110)의 상방 또는 하방으로 절곡 돌출되는 구조를 이루는 것으로, 이와 같이 요철을 주는 구조는 기본적으로, 평평한 판상의 부재와 비교하여 내충격 강도, 비틀림 강도 등을 증가시키는 효과를 가진다.The pallet rib portion 120 forms a structure that is bent and projected upward or downward of the pallet plate portion 110, and the structure giving the unevenness is basically increased in impact resistance, torsional strength, and the like compared to a flat plate-like member. It has an effect.
이에 더하여, 본 발명의 제1 실시예에 따른 팰릿 리브부(120)는 평면을 본 형상이 벌집 구조를 이루도록 복수의 육각형 리브(121)가 연속하여 구비된다. 벌집 구조가 강도 및 충격흡수력을 향상시킨다는 것은 이미 알려진 바이다. In addition, the pallet rib portion 120 according to the first embodiment of the present invention is provided with a plurality of hexagonal ribs 121 continuously so that a plane-viewed shape forms a honeycomb structure. It is already known that honeycomb structures improve strength and shock absorption.
이에 더하여, 본 발명의 제1 실시예에 따른 팰릿 리브부(120)는 육각형 리브(121) 내에서 내외 이중으로 형성되는 다각형 리브(122, 123)가 형성된다. 도 2에서는 육각형 리브(121) 내에 원형 리브(122)가 형성되며, 원형 리브(122) 내에 사각형 리브(123)가 형성되어 내외 이중의 다각형 리브(122, 123)를 이룬다. 또한, 육각형 리브(121)를 포함한 다각형의 리브들(121, 122, 123)은 연결 리브(124)에 의해 둘이상의 방향에서 연결된다. 이에 따라, 화물의 하중 또는 외부충격이 가해지는 경우 내외로 형성되는 다각형의 리브들(121, 122, 123) 자체의 응력과, 연결 리브(124)에 의한 내외의 리브 간에 지지하며 당겨주는 힘, 즉 인력이 작용하게 되어 팰릿 판부(110)를 견고하게 지지하게 된다.In addition, the pallet rib portion 120 according to the first embodiment of the present invention is formed with polygonal ribs 122 and 123 which are dually formed inside and outside the hexagonal rib 121. In FIG. 2, circular ribs 122 are formed in the hexagonal ribs 121, and rectangular ribs 123 are formed in the circular ribs 122 to form internal and external double polygonal ribs 122 and 123. Further, polygonal ribs 121, 122, 123 including hexagonal ribs 121 are connected in two or more directions by connecting ribs 124. Accordingly, the force of pulling and supporting between the internal and external ribs of the polygonal ribs 121, 122, 123 itself formed inside and outside when the load or the external shock is applied, and the ribs 124, That is, the attraction force acts to firmly support the pallet plate 110.
이와 같이, 본 발명의 제1 실시예에 따른 팰릿 리브부(120)는 평판에 리브를 형성하여 요철을 주는 점, 리브의 형상이 벌집 구조를 이루는 점, 내부에 다각형 리브를 연속적으로 더 형성하고 연결 리브로 서로를 연결하는 점에 의해 충격흡수력 및 인장강도를 효과적으로 증가시킬 수 있다.As such, the pallet rib portion 120 according to the first embodiment of the present invention further forms a rib on a flat plate to give irregularities, a point in which the shape of the rib forms a honeycomb structure, and further forms polygonal ribs therein. By connecting each other with the connecting ribs, the impact absorption force and the tensile strength can be effectively increased.
또한, 본 발명의 제1 실시예에 따른 리브 열융착부(130)는 팰릿 리브부(120)의 각 리브의 길이 방향 중간 부분에서 양측면이 열융착되어 형성된다. 도 2에서는 육각형 리브(121)에서 육각형의 변을 이루는 각 리브의 중간 지점 2개소에 리브 열융착부(130)가 형성되고, 원형 리브(122)에는 육각형 리브(121)에 대응하여 전체적으로 6개소에 리브 열융착부(130)가 형성되며, 연결 리브(124)에는 중간 지점 1개소에 리브 열융착부(130)가 형성된다. 이와 같이, 본 발명의 제1 실시예에서는 각 리브에 적어도 하나의 리브 열융착부(130)가 형성된다. 한편, 최내부의 사각형 리브(123)에는 리브 열융착부가 도시되고 있지 않은 것처럼, 리브의 길이가 짧아 그 자체만으로도 충분히 응집력을 가지는 경우에는 리브 열융착부를 생략하는 것도 가능하다. In addition, the rib heat-sealed portion 130 according to the first embodiment of the present invention is formed by heat-sealing both sides at the middle portion of the longitudinal direction of each rib of the pallet rib portion 120. In FIG. 2, the rib heat-sealed portion 130 is formed at two intermediate points of each rib forming a hexagonal side in the hexagonal rib 121, and the circular rib 122 has six locations in total corresponding to the hexagonal rib 121. The rib heat-sealed portion 130 is formed in the ribs, and the rib heat-sealed portion 130 is formed in the connecting rib 124 at one intermediate point. As described above, in the first embodiment of the present invention, at least one rib heat-sealed portion 130 is formed in each rib. On the other hand, as shown in the innermost rectangular rib 123, the rib thermal fusion portion can be omitted if the length of the rib is short and sufficiently cohesive even by itself.
또한, 도 3에 도시된 바와 같이 본 발명의 제1 실시예에 따른 리브 열융착부(130)는 리브보다 좁은 폭이고, 상부가 하방으로 만곡된 형상을 이룬다. 이는 열융착에 의한 열융착부의 형상으로서, 열융착이란 두 장의 열가소성 플라스틱의 표면을 열과 압력을 가하여 붙이는 것을 일컬으며 열접착이라고도 한다. 즉, 리브가 열에 의해 연화되면서 양측면 및 하방으로 압력이 가해져 견고하게 접착되고, 응집된 형상을 가진다.In addition, as shown in FIG. 3, the rib heat-sealed portion 130 according to the first embodiment of the present invention has a narrower width than the rib and has an upper curved portion. This is the shape of the heat-sealed portion by heat fusion, heat fusion refers to the bonding of the surface of the two thermoplastic plastics by applying heat and pressure, also called heat bonding. That is, while the rib softens by heat, pressure is applied to both side surfaces and downwards so that the ribs are firmly adhered and have an aggregated shape.
여기서, 본 발명의 제1 실시예에 따른 리브 열융착부(130)는 진공성형에 의해 형성함으로써 용이하게 형성할 수 있다. 구체적으로, 진공성형은 합성수지재에 열을 가하면서 금형에 밀착한 후, 금형이 장착되는 진공성형기 내의 공기를 급속 배출하는 것으로 진공흡착하여 팰릿을 형성하는 것이다. 이때, 리브 열융착부(130)는 성형가공열과 진공흡착압에 의해 용이하게 열융착할 수 있다. Here, the rib heat-sealed portion 130 according to the first embodiment of the present invention can be easily formed by forming by vacuum molding. Specifically, vacuum molding is to close the mold while applying heat to the synthetic resin material, and then to rapidly discharge the air in the vacuum molding machine in which the mold is mounted to form a pallet by vacuum adsorption. At this time, the rib heat-sealed portion 130 can be easily heat-sealed by the molding process heat and vacuum adsorption pressure.
이와 같이, 열융착에 의해 리브 열융착부(130)는 리브 양측면을 견고하게 접착시키며, 리브는 그 중간 지점에서 길이 방향 또는 상하 방향에 대해 응집력을 가지게 된다. 이에 따라, 화물의 하중 또는 외부충격이 가해지는 경우 리브 간에 인력이 더 강하게 작용한다. 따라서, 본 발명의 제1 실시예에 따른 경량 팰릿의 내구성을 더욱더 효과적으로 증가시킬 수 있다.As described above, the rib heat-sealed portion 130 is firmly bonded to both sides of the rib by thermal fusion, and the rib has cohesive force in the longitudinal direction or the vertical direction at its intermediate point. Accordingly, the attraction force between the ribs is stronger when the load or external impact of the cargo is applied. Therefore, the durability of the lightweight pallet according to the first embodiment of the present invention can be increased even more effectively.
<제2 실시예>Second Embodiment
도 4 내지 도 6은 본 발명의 제2 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다. 구체적으로, 도 4의 (a)는 본 발명의 제2 실시예에 따른 경량 팰릿의 사시도이고, 도 4의 (b)는 도 4의 (a)의 경량 팰릿을 B-B' 절취선으로 자른 단면도이다. 또한, 도 5는 본 발명의 제2 실시예에 따른 팰릿 하부보조 지지부와 연결 리브부만을 나타낸 평면도이고, 도 6은 본 발명의 제2 실시예에 따른 경량 팰릿에 화물이 적재된 상태를 도시한 도면이다.4 to 6 is a view for explaining a lightweight pallet according to a second embodiment of the present invention. Specifically, Figure 4 (a) is a perspective view of a lightweight pallet according to a second embodiment of the present invention, Figure 4 (b) is a cross-sectional view taken along the line B-B 'of the lightweight pallet of Figure 4 (a). In addition, Figure 5 is a plan view showing only the pallet lower secondary support and the connecting rib portion according to a second embodiment of the present invention, Figure 6 shows a state in which the cargo is loaded on a lightweight pallet according to a second embodiment of the present invention Drawing.
도 4 내지 도 6에 도시된 바와 같이, 본 발명의 제2 실시예에 따른 경량 팰릿은 팰릿 판부(110), 팰릿 리브부(120), 리브 열융착부(130), 팰릿 지지부(140), 외곽턱부(150), 팰릿 하부보조 지지부(160) 및 연결 리브부(170)를 포함한다.As shown in Figures 4 to 6, the lightweight pallet according to the second embodiment of the present invention is a pallet plate 110, a pallet rib portion 120, rib heat-sealed portion 130, a pallet support portion 140, The outer jaw portion 150, the pallet lower secondary support portion 160 and the connecting rib portion 170 is included.
본 발명의 제2 실시예에 따른 경량 팰릿의 팰릿 판부(110), 팰릿 리브부(120), 리브 열융착부(130), 팰릿 지지부(140) 및 외곽턱부(150)는 본 발명의 제1 실시예에 따른 경량 팰릿의 팰릿 판부(110), 팰릿 리브부(120), 리브 열융착부(130), 팰릿 지지부(140) 및 외곽턱부(150)와 동일 또는 유사한 재질, 형상, 구조 및 기능을 가지므로, 이에 관한 구체적인 설명은 도 1 내지 도 3을 참조하여 설명한 본 발명의 제1 실시예를 참고하기로 하고, 이하에서는 생략하기로 한다.The pallet plate 110, the pallet rib portion 120, the rib heat-sealed portion 130, the pallet support portion 140 and the outer jaw portion 150 of the lightweight pallet according to the second embodiment of the present invention The same or similar material, shape, structure and function of the pallet plate 110, the pallet rib portion 120, the rib heat-sealed portion 130, the pallet support portion 140 and the outer jaw portion 150 of the lightweight pallet according to the embodiment Therefore, a detailed description thereof will be referred to the first embodiment of the present invention described with reference to FIGS. 1 to 3 and will be omitted below.
본 발명의 제2 실시예에 따른 경량 팰릿은 상기의 구성요소에 더하여 팰릿 하부보조 지지부(160)와 연결 리브부(170)를 포함한다. 팰릿 하부보조 지지부(160)와 연결 리브부(170)는, 도 6과 같이 화물의 적재량이 증가하는 경우, 팰릿 지지부(140)가 화물의 과도한 하중을 견디지 못하고 변형 또는 파손되는 것을 방지하기 위한 것으로서, 팰릿 하부보조 지지부(160)는 복수개가 팰릿 지지부(140)와 대응하는 위치에 배치되어 팰릿 지지부(140)의 하단에 탈착 가능하게 체결되고 팰릿 지지부(140)를 하방에서 지지하며, 연결 리브부(170)는 팰릿 하부보조 지지부(160)와 일체로 형성되며 팰릿 하부보조 지지부(160)를 서로 연결하여 지지한다.The lightweight pallet according to the second embodiment of the present invention includes a pallet lower auxiliary support 160 and a connecting rib 170 in addition to the above components. The pallet lower auxiliary support 160 and the connecting rib 170 are intended to prevent the pallet support 140 from being deformed or damaged when the load of the cargo increases as shown in FIG. 6. , Pallet lower auxiliary support 160 is arranged in a position corresponding to the plurality of pallet support 140, detachably fastened to the bottom of the pallet support 140 and supports the pallet support 140 from below, connecting rib portion The 170 is formed integrally with the lower pallet subsidiary support 160 and supports the lower pallet subsidiary support 160 by connecting to each other.
이와 같은 구성에 의해, 팰릿 하부보조 지지부(160)는 팰릿 지지부(140)의 하단 부분의 내구성을 향상시키며, 연결 리브부(170)는 상술한 팰릿 리브부(120)와 마찬가지의 기능 및 효과를 발휘한다. 따라서, 화물의 하중 또는 외부충격이 과도한 경우, 팰릿 하부보조 지지부(160)와 이를 연결하는 연결 리브부(170)를 채용하는 것에 의해 경량 팰릿의 내구성을 보강할 수 있다. 한편, 연결 리브부(170)에도 리브 열융착부(130)를 형성하여 응집력을 증가시키는 것이 가능하다. 또한, 도 5와 같이 팰릿 하부보조 지지부(160)와 연결 리브부(170)를 제외한 내외곽의 판부(161, 162)는 진공성형시 형성되는 부분으로, 이를 제거하는 것에 의해 본 발명의 제2 실시예에 따른 경량 팰릿의 경량화를 도모할 수 있다. 즉, 내구성 및 경량화의 양측면을 고려하여 선택적으로 유지 또는 제거하는 것이 가능하다.By such a configuration, the pallet lower auxiliary support part 160 improves durability of the lower end of the pallet support part 140, and the connecting rib part 170 has the same functions and effects as the pallet rib part 120 described above. Exert. Therefore, when the load or external impact of the cargo is excessive, it is possible to reinforce the durability of the lightweight pallet by employing the pallet lower auxiliary support 160 and the connecting rib portion 170 connecting them. On the other hand, it is possible to increase the cohesion force by forming the rib heat-sealed portion 130 in the connecting rib portion 170. In addition, as shown in FIG. 5, the inner and outer plate portions 161 and 162 except for the pallet lower auxiliary support part 160 and the connecting rib part 170 are formed during vacuum molding, and the second part of the present invention is removed by removing them. The light weight pallet according to the embodiment can be reduced in weight. That is, it is possible to selectively maintain or remove in consideration of both sides of durability and light weight.
도 7은 본 발명의 제2 실시예에 따른 팰릿 지지부와 팰릿 하부보조 지지부의 체결 구조를 설명하기 위한 도면이다.7 is a view illustrating a fastening structure of the pallet supporter and the pallet subsidiary supporter according to the second embodiment of the present invention.
도 7의 (a)와 같이 팰릿 지지부(140)는 하단에 체결홀(141)이 형성되고, 도 7의 (b)와 같이 팰릿 하부보조 지지부(160)는 상단에 체결 돌기(163)가 형성됨으로써, 도 7의 (c)와 같이 체결 돌기(163)를 체결홀(141)에 삽입하는 것으로 용이하게 체결할 수 있으며, 또한 용이하게 분리할 수 있다. 즉, 팰릿 지지부(140)와 팰릿 하부보조 지지부(160)를 손쉽게 탈착할 수 있다.As shown in (a) of FIG. 7, the fastening hole 141 is formed at the lower end of the pallet support part 140, and the fastening protrusion 163 is formed at the top of the pallet lower auxiliary support part 160 as shown in FIG. 7 (b). As a result, as illustrated in FIG. 7C, the fastening protrusion 163 may be easily inserted into the fastening hole 141, and may be easily separated. That is, the pallet supporter 140 and the pallet lower auxiliary supporter 160 can be easily detached.
또한, 팰릿 하부보조 지지부(160)는, 팰릿 지지부(140)와 체결되는 상단면으로부터 바닥의 하단면까지 단차를 두어 충격흡수계단 구조(164)로 형성함으로써, 외부충격을 보다 잘 흡수할 수 있다. 예컨대, 장거리 이송, 비포장길 이송이나 도 6과 같이 화물을 이단으로 적재하는 경우에 화물을 안전하게 보호할 수 있는 완충작용의 기능을 가진다. 또한, 팰릿 지지부(140)의 높이를 줄일 수 있어, 진공성형시 팰릿 지지부(140)가 너무 늘어나 약해질 수 있는 우려까지 보완한 구성으로 완충작용과 강성을 유지하는 두 가지 기능을 가진다.In addition, the pallet lower auxiliary support 160 may be formed as a shock absorbing stair structure 164 with a step from the top surface to which the pallet support portion 140 is fastened to the bottom surface of the bottom, thereby absorbing the external shock better. . For example, in the case of long-distance transport, unpaved road transport, or when loading the cargo in two stages as shown in Figure 6 has a function of the buffer action to secure the cargo. In addition, it is possible to reduce the height of the pallet support portion 140, has a dual function to maintain the cushioning action and rigidity in a configuration that complements the concern that the pallet support portion 140 is too long and weak during vacuum molding.
도 8은 본 발명의 제2 실시예에 따른 연결 리브부의 다른 형태를 나타낸 도면이고, 도 9는 도 8의 연결 리브부를 채용한 경량 팰릿에 화물이 적재된 상태를 도시한 도면이다.8 is a view showing another form of the connecting rib portion according to the second embodiment of the present invention, Figure 9 is a view showing a state in which cargo is loaded on a lightweight pallet employing the connecting rib portion of FIG.
도 8에 도시된 바와 같이, 연결 리브부(170)는 팰릿 하부보조 지지부(160)를 연결하는 주 연결 리브(171)를 가지는 한편, 주 연결 리브(171)의 중간 지점을 횡 방향 및 종 방향으로 가로질러 연결하는 보조 연결 리브(172)를 더 포함한다. As shown in FIG. 8, the connecting rib portion 170 has a main connecting rib 171 connecting the pallet subsidiary support part 160, while transversely and longitudinally the intermediate points of the main connecting rib 171. It further comprises an auxiliary connecting rib 172 to connect across.
이와 같은 구성에 의해, 도 9와 같이 수평으로 4개의 화물이 적재되는 경우, 화물 사이 부분의 하중을 그 하방에 위치하는 보조 연결 리브(172)로 지지할 수 있다. 즉, 보조 연결 리브(172)는 주 연결 리브(171)의 인장강도 등을 보강하는 기능을 가지는 것으로, 적재되는 화물의 무게, 배치 등에 따라 그 구조를 용이하게 변경 설계하여 제작할 수 있다.With such a configuration, when four cargoes are loaded horizontally as shown in FIG. 9, the loads between the cargo portions can be supported by the auxiliary connecting ribs 172 positioned below them. That is, the auxiliary connecting rib 172 has a function of reinforcing the tensile strength of the main connecting rib 171, etc., and can be easily changed and designed by the structure according to the weight, arrangement, and the like of the loaded cargo.
<제3 실시예>Third Embodiment
도 10은 본 발명의 제3 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다. 구체적으로, 도 10의 (a)는 본 발명의 제3 실시예에 따른 경량 팰릿의 사시도이고, 도 10의 (b)는 도 10의 (a)의 경량 팰릿을 C-C' 절취선으로 자른 단면도이다.10 is a view for explaining a lightweight pallet according to a third embodiment of the present invention. Specifically, FIG. 10A is a perspective view of a lightweight pallet according to a third embodiment of the present invention, and FIG. 10B is a cross-sectional view taken along line C-C 'of the lightweight pallet of FIG.
본 발명의 제3 실시예에 따른 경량 팰릿은, 본 발명의 제1 실시예 또는 제2 실시예에서 상술한 구성요소에 더하여, 팰릿 상부보조 지지부(180)를 더 포함한다. 팰릿 상부보조 지지부(180)는 팰릿 판부(110)의 상단에 탈착 가능하게 체결되며, 팰릿 판부(110)를 상방에서 지지한다. 즉, 팰릿 상부보조 지지부(180)는 팰릿 판부(110)의 상면에 밀착되며, 하방으로 돌출된 일부분은 팰릿 지지부(140)와 대응되어 밀착된다. 이에 따라, 팰릿 판부(110)의 두께를 보강하는 구조를 이루며 경량 팰릿 상부의 내구성을 향상시킨다.The lightweight pallet according to the third embodiment of the present invention further includes a pallet upper auxiliary support 180 in addition to the components described above in the first or second embodiment of the present invention. The pallet upper auxiliary support part 180 is detachably fastened to the upper end of the pallet plate part 110 and supports the pallet plate part 110 from above. That is, the pallet upper auxiliary support 180 is in close contact with the upper surface of the pallet plate 110, a portion protruding downward is in close contact with the pallet support 140. Accordingly, to achieve a structure to reinforce the thickness of the pallet plate 110 and to improve the durability of the lightweight pallet upper portion.
또한, 이러한 구성으로 화물의 운반을 마친 후 팰릿 상부보조 지지부(180)를 다시 분리하여 보관 가능하고, 필요할 때 다시 결합해서 사용할 수 있다. 이와 같이, 경량 팰릿 보관시 모두 분리하여 보관 가능하고 무게가 가벼워 작업자의 취급이 용이하여 작업자의 안전과 작업능력을 증가시킬 수 있다.In addition, after finishing the transport of the cargo in this configuration, the pallet upper secondary support 180 can be separated and stored again, and can be used again when necessary. As such, when storing lightweight pallets, all of them can be separated and stored, and the weight is light, which facilitates the handling of the worker, thereby increasing the safety and workability of the worker.
이와 같이, 본 발명의 일실시예에 따른 경량 팰릿은 충격흡수율 및 인장강도 등 내구성이 우수하여 변형 및 파손을 방지할 수 있고, 작업자의 안전을 도모할 수 있다. 또한, 동일한 내구성을 갖는 다른 재질 또는 사출성형 팰릿과 비교하여, 팰릿의 두께가 줄어들기 때문에 중량 및 체적을 최소화하여 운반, 보관, 관리 등의 취급이 용이한 경량 팰릿이 된다. 예컨대, 종래의 팰릿의 중량이 10~15Kg인데 비하여 본 발명의 일실시예에 따른 경량 팰릿의 중량은 4~5Kg이 된다. 즉, 본 발명의 일실시예에서는 팰릿의 강도를 높이고 두께를 줄이는 것에 의해 경량화를 도모할 수 있다. 또한, 단일 또는 이들을 일정하게 혼합한 합성수지재로 형성하므로 재활용이 가능하다. 또한, 제2 및 제3 실시예와 같이, 필요에 따라 경량 팰릿을 더 보강할 수 있다.As such, the lightweight pallet according to an embodiment of the present invention is excellent in durability, such as impact absorption rate and tensile strength, it is possible to prevent deformation and breakage, and to improve the safety of the operator. In addition, compared to other materials or injection molded pallets having the same durability, since the thickness of the pallet is reduced, the weight and volume are minimized, and thus the pallet is easy to handle, such as transportation, storage and management. For example, while the weight of the conventional pallet is 10 ~ 15Kg, the weight of the lightweight pallet according to an embodiment of the present invention is 4 ~ 5Kg. That is, in one embodiment of the present invention it is possible to reduce the weight by increasing the strength of the pallet and reducing the thickness. In addition, it is possible to recycle because it is formed of a synthetic resin material of a single or a mixture thereof. In addition, as in the second and third embodiments, it is possible to further reinforce the lightweight pallet as needed.
<다른 실시예><Other Embodiments>
(A) 도 11은 본 발명의 다른 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다. 구체적으로, 도 11의 (a)는 본 발명의 다른 실시예에 따른 경량 팰릿의 사시도이고, 도 11의 (b)는 도 11의 (a)의 경량 팰릿을 D-D' 절취선으로 자른 단면도이다.(A) FIG. 11 is a view for explaining a lightweight pallet according to another embodiment of the present invention. Specifically, FIG. 11A is a perspective view of a lightweight pallet according to another embodiment of the present invention, and FIG. 11B is a cross-sectional view taken along the line D-D ′ of the lightweight pallet of FIG. 11A.
도 11에 도시된 바와 같이, 본 발명의 다른 실시예에서는 경량 팰릿을 한 쌍이 서로 마주보도록 결합하여 사용 가능하다. 이에 따라, 본 발명의 제2 실시예에 따른 팰릿 하부보조 지지부와 연결 리브부를 별도로 제작하지 않더라도 과도한 하중에 견딜 수 있는 구조를 가질 수 있다.As shown in FIG. 11, in another embodiment of the present invention, a pair of lightweight pallets may be combined to face each other. Accordingly, the pallet lower auxiliary support and the connecting rib portion according to the second embodiment of the present invention may have a structure that can withstand excessive loads.
(B) 도 12는 본 발명의 또 다른 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다. 도 12의 (a)와 같이, 본 발명의 또 다른 실시예에서는 경량 팰릿의 운송이나 보관시 손쉽게 적층할 수 있다. 즉, 본 발명의 경량 팰릿은, 종래의 팰릿 구조가 운송 및 보관시 부피를 많이 차지하고 안정적으로 적재되지 못하는 문제점을 보완하여, 체적을 최소화하면서 안정적인 운송과 보관이 가능하도록 구조를 가진다. 또한, 도 12의 (b)와 같이, 팰릿 하부보조 지지부도, 팰릿 지지부로부터 분리하여, 별도로 적층 가능하다.(B) Figure 12 is a view for explaining a lightweight pallet according to another embodiment of the present invention. As shown in Figure 12 (a), in another embodiment of the present invention can be easily stacked during transportation or storage of the lightweight pallet. In other words, the lightweight pallet of the present invention has a structure to allow stable transportation and storage while minimizing a volume by compensating for the problem that the conventional pallet structure occupies a large volume and is not loaded stably during transportation and storage. In addition, as shown in Fig. 12B, the pallet lower supporter can also be separated from the pallet support and can be laminated separately.
(C) 도 13 및 도 14는 본 발명의 또 다른 실시예에 따른 경량 팰릿을 설명하기 위한 도면이다. 구체적으로, 도 13의 (a)는 본 발명의 또 다른 실시예에 따른 경량 팰릿의 사시도이고, 도 13의 (b)는 본 발명의 또 다른 실시예에 따른 경량 팰릿의 측면도이며, 도 14는 본 발명의 또 다른 실시예에 따른 팰릿 리브부 및 리브 열융착부를 확대하여 본 평면도이다.(C) FIGS. 13 and 14 are views for explaining a lightweight pallet according to another embodiment of the present invention. Specifically, Figure 13 (a) is a perspective view of a lightweight pallet according to another embodiment of the present invention, Figure 13 (b) is a side view of a lightweight pallet according to another embodiment of the present invention, Figure 14 An enlarged plan view of a pallet rib portion and a rib heat fusion portion according to another embodiment of the present invention.
도 13 및 도 14에 도시된 바와 같이, 본 발명의 또 다른 실시예에 따른 경량 팰릿은 팰릿 판부(210), 팰릿 리브부(220), 리브 열융착부(230) 및 팰릿 지지부(240)를 포함한다.As shown in Figure 13 and 14, the lightweight pallet according to another embodiment of the present invention is a pallet plate portion 210, pallet rib portion 220, rib heat-sealed portion 230 and the pallet support 240 Include.
팰릿 리브부(220)는 팰릿 판부(210)로부터 상방 또는 하방으로 절곡되어 돌출된 리브 형상을 이루는 것으로써, 팰릿 판부(210) 상에 내외 다중으로 형성되는 복수의 원형 또는 다각형 리브가, 본 발명의 제1 실시예와 딜리, 최외곽에 사각형 리브(221)가 이웃하여 복수개 형성되고, 최외곽의 사각형 리브 내에도 사각형 리브(222, 223)가 이중으로 형성되는 구조를 이룬다. 여기서, 사각형 리브들(221, 222, 223)은 모서리 부분이 만곡되어 대략적인 사각 형상을 이루며, 사각형 리브들(221, 222, 223)을 둘이상의 방향에서 연결하는 연결 리브(224)가 형성된다. 또한, 최외곽의 사각형 리브(221)의 외곽에도 복수의 수평 보조 리브(225)가 연속하여 나란히 형성되고, 수직 보조 리브(226)가 적절히 형성되는 것으로, 평활도 및 지지력을 향상시킨다. The pallet rib portion 220 forms a rib shape that is bent upwardly or downwardly from the pallet plate portion 210 to protrude, and thus, a plurality of circular or polygonal ribs formed on the pallet plate portion 210 in and out of the plurality of rib rib portions 220 are formed. In the first embodiment, a plurality of rectangular ribs 221 are formed adjacent to the dilith and the outermost part, and the rectangular ribs 222 and 223 are also formed in the outermost rectangular ribs. Here, the rectangular ribs 221, 222, and 223 have curved corners to form an approximately rectangular shape, and a connecting rib 224 is formed to connect the rectangular ribs 221, 222, and 223 in two or more directions. . In addition, a plurality of horizontal auxiliary ribs 225 are continuously formed side by side and vertical auxiliary ribs 226 are appropriately formed on the outer side of the outermost rectangular rib 221, thereby improving smoothness and supporting force.
이와 같이, 본 발명의 일실시예에 따른 경량 팰릿은 평활도 및 지지력을 고려하여 팰릿 리브부의 구조를 용이하게 설계 변경할 수 있다. 즉, 일례를 들은 육각형 또는 사각형 외에도 삼각형, 원형 등으로 형성할 수 있으며, 보조 리브를 적절하게 배치할 수 있다. 한편, 도 13 및 도 14에서 팰릿 판부(210)에서 연속하여 표시되는 선들은 팰릿 판부(210)로부터 화물의 미끄러짐을 방지하기 위한 요철들이다.As such, the lightweight pallet according to the embodiment of the present invention can easily change the structure of the pallet rib portion in consideration of the smoothness and the support force. That is, in addition to the hexagon or the square, an example may be formed into a triangle, a circle, or the like, and the auxiliary ribs may be appropriately disposed. Meanwhile, lines continuously displayed in the pallet plate portion 210 in FIGS. 13 and 14 are irregularities for preventing slippage of cargo from the pallet plate portion 210.
이하에서는, 상술한 본 발명의 일실시예에 따른 경량 팰릿을 제조하기 위한 경량 팰릿 제조용 금형 및 경량 팰릿의 제조 방법을 설명하기로 한다.Hereinafter, a mold for producing a lightweight pallet and a method for producing a lightweight pallet for manufacturing a lightweight pallet according to an embodiment of the present invention described above will be described.
도 15는 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형을 설명하기 위한 도면이다. 구체적으로, 도 15는 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형의 구조적 특징을 설명하기 위하여 금형의 일부분을 간략하게 나타낸 것으로, (a)는 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형의 사시도이고, (b)는 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형의 측면도이며, (c)는 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형의 평면도이다.15 is a view for explaining a mold for producing a lightweight pallet according to an embodiment of the present invention. Specifically, Figure 15 is a simplified view of a portion of the mold in order to explain the structural features of the mold for producing a lightweight pallet according to an embodiment of the present invention, (a) is a mold for producing a lightweight pallet according to an embodiment of the present invention Is a perspective view of (b) is a side view of a mold for producing lightweight pallets according to an embodiment of the present invention, (c) is a plan view of a mold for producing lightweight pallets according to an embodiment of the present invention.
도 15에 도시된 바와 같이, 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형은 금형 판부(1110), 돌출부(1120), 돌출부 배기홀(1130), 함몰부(1140) 및 함몰부 배기홀(1150)을 포함한다.As shown in FIG. 15, the mold for manufacturing a lightweight pallet according to an embodiment of the present invention includes a mold plate part 1110, a protrusion 1120, a protrusion exhaust hole 1130, a depression 1140, and a depression exhaust hole ( 1150).
금형 판부(1110)는 경량 팰릿을 진공성형하기 위한 토대를 이룬다. 즉, 금형 판부(1110)에는 상기의 구성요소들이 형성되며, 진공성형시 경량 팰릿의 판부를 형성하기 위한 토대가 된다.The mold plate portion 1110 forms the basis for vacuum molding the lightweight pallet. That is, the above components are formed in the mold plate part 1110, and serve as a foundation for forming the plate part of the lightweight pallet during vacuum molding.
돌출부(1120)는 경량 팰릿이 돌출된 리브를 갖도록 금형 판부(1110) 상에 돌출되어 형성된다. 돌출부(1120)는 경량 팰릿의 판부에 상방 또는 하방으로 절곡 돌출되는 리브를 형성하기 위한 것으로, 돌출부(1120)에 의해 경량 팰릿의 판부에 요철을 줌으로써 경량 팰릿의 내충격 강도, 비틀림 강도 등을 증가시킬 수 있다. The protrusion 1120 is formed to protrude on the mold plate 1110 so that the lightweight pallet has a rib that protrudes. The protrusion 1120 is for forming ribs that are bent upwards or downwards on the plate of the lightweight pallet. The protrusion 1120 increases the impact resistance, the torsion strength, and the like of the lightweight pallet by giving the protrusions and protrusions to the plate of the lightweight pallet. Can be.
돌출부 배기홀(1130)은 돌출부(1120)를 따라 금형 판부(1110)를 관통하여 형성된다. 돌출부 배기홀(1130)은 진공성형시 금형, 특히 돌출부(1120)에 합성수지 시트를 진공 흡착시키기 위한 것으로, 금형 판부(1110)와 돌출부(1120)가 이루는 모서리 부분을 따라 형성된다.The protrusion exhaust hole 1130 is formed through the mold plate 1110 along the protrusion 1120. The protrusion exhaust hole 1130 is used to vacuum-adsorb the synthetic resin sheet to the mold, in particular, the protrusion 1120 during vacuum molding, and is formed along an edge portion of the mold plate part 1110 and the protrusion 1120.
함몰부(1140)는 돌출부(1120)에 의해 형성되는 리브의 길이 방향 중간 지점을 열융착시키도록 돌출부(1120)의 길이 방향 중간 부분에 형성된다. 또한, 함몰부(1140)는 돌출부(1120)의 상하 방향의 일부 또는 금형 판부(1110)의 상면까지 함몰되어 바닥면을 이룬다. 열융착이란 두 장의 열가소성 합성수지의 표면을 열과 압력을 가하여 붙이는 것을 일컬으며 열접착이라고도 한다. 열융착에 의해 리브의 길이 방향 중간 지점의 양측면이 견고하게 접착되며, 리브는 그 중간 지점에서 길이 방향 또는 상하 방향에 대해 응집력을 가지게 된다. 이에 따라, 화물의 하중 또는 외부충격이 가해지는 경우 리브 간에 인력이 더 강하게 작용하여 경량 팰릿의 내구성을 더욱더 효과적으로 증가시킬 수 있다.The depression 1140 is formed in the longitudinal middle portion of the protrusion 1120 to thermally bond the longitudinal intermediate point of the rib formed by the protrusion 1120. In addition, the recess 1140 is recessed to a part of the vertical direction of the protrusion 1120 or the upper surface of the mold plate part 1110 to form a bottom surface. Thermal fusion refers to the application of heat and pressure to the surfaces of two sheets of thermoplastic synthetic resin, also called thermal bonding. By heat fusion, both sides of the longitudinal middle point of the rib are firmly bonded, and the rib has cohesive force in the longitudinal direction or the vertical direction at the intermediate point. Accordingly, when the load or the external impact of the load is applied, the attraction force between the ribs can be stronger to increase the durability of the lightweight pallet even more effectively.
이에 더하여, 도 15의 (a)와 같이 돌출부(1120)는 함몰부(1140)가 형성되는 부분의 폭이 점진적으로 감소하는 가이드부(1121)를 가진다. 이에 따라, 진공성형시 합성수지 시트가 돌출부(1120)로부터 함몰부(1140)로 만곡되는 형상을 가질 수 있어, 돌출부(1120)와 함몰부(1140)가 이루는 모서리 부분에서 연화(軟化)된 합성수지 시트가 찢어지는 것을 방지할 수 있다.In addition, as shown in FIG. 15A, the protrusion 1120 has a guide portion 1121 in which the width of the portion where the depression 1140 is formed is gradually reduced. As a result, the synthetic resin sheet may have a shape in which the synthetic resin sheet is curved from the protrusion 1120 to the recess 1140 during the vacuum molding, and the synthetic resin sheet softened at the corners formed by the protrusion 1120 and the recess 1140. Can be torn off.
함몰부 배기홀(1150)은 함몰부(1140)의 바닥면을 따라 금형 판부(1110)를 관통하여 형성된다. 함몰부 배기홀(1150)은 진공성형시 함몰부(1140) 상의 잔류 공기를 급속 배출하여 경량 팰릿의 리브 중간 지점을 열융착시키는 기능을 한다. The depression exhaust hole 1150 is formed through the mold plate 1110 along the bottom surface of the depression 1140. The depression exhaust hole 1150 functions to thermally seal the rib intermediate point of the lightweight pallet by rapidly discharging residual air on the depression 1140 during vacuum forming.
또한, 함몰부 배기홀(1150)은 함몰부(1140)의 바닥면에, 돌출부(1120)의 길이 방향으로 나란히 형성되는 두 개의 홀로 이루어진다. 이와 같은 구조에 의해, 리브의 길이 방향으로 접착되도록 열융착할 수 있다. In addition, the depression exhaust hole 1150 includes two holes formed side by side in the longitudinal direction of the protrusion 1120 on the bottom surface of the depression 1140. By such a structure, it can heat bond so that it may adhere to the longitudinal direction of a rib.
이와 같이, 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형은 함몰부(1140)와 함몰부 배기홀(1150)을 구비하는 것에 의해, 진공성형시 용이하게 리브를 열융착시킬 수 있다. 즉, 합성수지 시트는 가열에 의해 연화된 후 함몰부(1140) 상에 위치되며, 함몰부 배기홀(1150)의 배기 동작을 통해 진공흡착될 수 있다.As described above, the mold for manufacturing a lightweight pallet according to an embodiment of the present invention includes the depression 1140 and the depression exhaust hole 1150, so that the ribs can be easily heat-sealed during vacuum molding. That is, the synthetic resin sheet may be positioned on the recess 1140 after being softened by heating, and may be vacuum adsorbed through the exhaust operation of the recess exhaust hole 1150.
도 16은 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형을 나타낸 사시도이고, 도 17은 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형을 확대하여 본 평면도이다.Figure 16 is a perspective view showing a mold for producing a lightweight pallet according to an embodiment of the present invention, Figure 17 is an enlarged plan view of the mold for manufacturing a lightweight pallet according to an embodiment of the present invention.
도 16 및 도 17에 도시된 바와 같이, 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형은 도 15를 통해 상술한 바와 같이, 경량 팰릿을 진공성형하기 위한 토대를 이루는 금형 판부(1110)와, 경량 팰릿이 돌출된 리브를 갖도록 금형 판부(1110) 상에 형성되는 돌출부(1120)와, 돌출부(1120)를 따라 금형 판부(1110)를 관통하여 형성되는 돌출부 배기홀(1130)과, 리브의 길이 방향 중간 지점을 열융착시키도록 돌출부(1120)의 길이 방향 중간 부분에 형성되는 함몰부(1140)와, 함몰부(1140)의 바닥면을 따라 금형 판부(1110)를 관통하여 형성되는 함몰부 배기홀(1150)을 구비한다.As shown in Figure 16 and 17, the mold for producing a lightweight pallet according to an embodiment of the present invention, as described above with reference to Figure 15, forming a base plate for forming a vacuum for the lightweight pallet 1110, A protrusion 1120 formed on the mold plate 1110 so that the lightweight pallet has a rib that protrudes, a protrusion exhaust hole 1130 formed through the mold plate 1110 along the protrusion 1120, and the length of the rib. A depression 1140 formed in the longitudinal middle portion of the protrusion 1120 to heat-bond the middle point in the direction, and a depression exhaust formed through the mold plate 1110 along the bottom surface of the depression 1140. The hole 1150 is provided.
여기서, 돌출부(1120)는, 금형 판부(1110) 상에 내외 다중으로 형성되는 복수의 원형 또는 다각형 돌기의 일례로서, 벌집 구조를 이루는 복수의 육각형 돌기(1122)와, 육각형 돌기(1122) 내에서 내외 이중으로 형성되는 다각형 돌기(1123, 1124)와, 육각형 돌기(1122) 및 다각형 돌기(1123, 1124)를 둘이상의 방향에서 연결하는 연결 돌기(1125)로 이루어진다. 다각형 돌기(1123, 1124)는 육각형 돌기(1122) 내에 원형 돌기(1123)가 형성되며, 원형 돌기(1123) 내에 사각형 돌기(1124)가 형성되어 내외 이중의 다각형 돌기(1123, 1124) 형상을 이룬다. Here, the protrusion 1120 is an example of a plurality of circular or polygonal protrusions formed on the mold plate part 1110 in multiples inside and outside, and includes a plurality of hexagonal protrusions 1122 and a hexagonal protrusion 1122 forming a honeycomb structure. It consists of a polygonal projection (1123, 1124) formed in a double inside and outside, and a connecting projection (1125) for connecting the hexagonal projection (1122) and polygonal projection (1123, 1124) in two or more directions. The polygonal protrusions 1123 and 1124 have circular protrusions 1123 formed in the hexagonal protrusions 1122, and the rectangular protrusions 1124 are formed in the circular protrusions 1123 to form double polygon protrusions 1123 and 1124. .
또한, 함몰부(1140)는 돌출부(1120)의 각 돌기(1122, 1123, 1124, 1125)의 길이 방향 중간 부분에서 함몰되어 형성된다. 도 17에서는 육각형 돌기(1122)에서 육각형의 변을 이루는 각 돌기의 중간 지점 2개소에 함몰부(1140)가 형성되고, 원형 돌기(1123)에는 육각형 돌기(1122)에 대응하여 전체적으로 6개소에 함몰부(1140)가 형성되며, 연결 돌기(1125)에는 중간 지점 1개소에 함몰부(1130)가 형성된다. 이와 같이, 본 발명의 일실시예에서는 각 돌기(1122, 1123, 1124, 1125)에 적어도 하나의 함몰부(1140)가 형성된다. 한편, 최내부의 사각형 돌기(1124)에는 함몰부가 도시되고 있지 않은 것처럼, 금형에 의해 제작되는 리브의 길이가 짧아 그 자체만으로도 충분히 응집력을 가지는 경우에는 함몰부를 생략하는 것도 가능하다.In addition, the depression 1140 is formed by being recessed in the middle portion in the longitudinal direction of each of the protrusions 1122, 1123, 1124, and 1125 of the protrusion 1120. In FIG. 17, depressions 1140 are formed at two intermediate points of each projection forming a hexagonal side in hexagonal projections 1122, and circular projections 1123 are recessed in six locations in correspondence with hexagonal projections 1122. The part 1140 is formed, and the connection protrusion 1125 is formed with a recess 1130 at one intermediate point. As such, in one embodiment of the present invention, at least one depression 1140 is formed in each of the protrusions 1122, 1123, 1124, and 1125. On the other hand, as the depression is not shown in the innermost rectangular projection 1124, if the length of the rib produced by the mold is short and has sufficient cohesive force by itself, it is also possible to omit the depression.
이와 같은 돌출부(1120) 및 함몰부(1140)의 구조에 의해 형성되는 경량 팰릿은 평판에 리브를 형성하여 요철을 주는 점, 내부에 다각형 리브를 연속적으로 더 형성하고 연결 리브로 서로를 연결하는 점, 리브의 중간 중간을 열융착시킨 점에 의해 충격흡수력 및 인장강도를 효과적으로 증가시킬 수 있다.Lightweight pallets formed by the structure of the protrusions 1120 and the depressions 1140 are provided with ribs on the flat plate to give the irregularities, and to further form a polygonal rib inside and connect each other with connecting ribs, By heat-sealing the middle of the rib, the impact absorbing force and the tensile strength can be effectively increased.
이와 같이, 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형은 충격흡수력 및 인장강도가 향상된 경량 팰릿을 용이하게 제조할 수 있다. As such, the mold for producing a lightweight pallet according to an embodiment of the present invention can easily manufacture a lightweight pallet with improved impact absorption and tensile strength.
한편, 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형에는, 경량 팰릿이 일정한 높이를 갖도록 지지하는 지지대 형상의 지지부를 성형하기 위한 지지대 돌출부(1160)와, 경량 팰릿 판부의 테두리를 따라 상방으로 절곡되는 외곽턱부를 성형하기 위한 외곽턱 돌출부(1170)가 더 형성된다.On the other hand, in the mold for producing a lightweight pallet according to an embodiment of the present invention, the support protrusion 1160 for forming a support portion of the support shape for supporting the lightweight pallet to have a constant height, and bent upwards along the edge of the lightweight pallet plate portion The outer jaw protrusion 1170 for forming the outer jaw portion is further formed.
도 18은 본 발명의 일실시예에 따른 경량 팰릿의 제조 방법을 나타낸 플로차트이고, 도 19 내지 도 22는 본 발명의 일실시예에 따른 경량 팰릿의 제조 방법을 각 단계별로 나타낸 도면이다.FIG. 18 is a flowchart illustrating a method for manufacturing a lightweight pallet according to an embodiment of the present invention, and FIGS. 19 to 22 are diagrams illustrating steps of a method for manufacturing a lightweight pallet according to an embodiment of the present invention.
도 18에 도시된 바와 같이 본 발명의 일실시예에 따른 경량 팰릿의 제조 방법은, 시트 연화 단계(S410), 시트 밀착 단계(S420), 배기 단계(S430) 및 팰릿완성 단계(S440)를 포함한다. 이하에서는 각 제조 단계를 도 19 내지 도 22를 참조하여 살펴보기로 한다.As illustrated in FIG. 18, the method for manufacturing a lightweight pallet according to an embodiment of the present invention includes a sheet softening step (S410), a sheet contacting step (S420), an exhausting step (S430), and a pallet completing step (S440). do. Hereinafter, each manufacturing step will be described with reference to FIGS. 19 to 22.
먼저, 도 19에 도시된 바와 같이, 시트 연화 단계(S410)에서는 히터(heater, 410)를 이용하여 열가소성 합성수지 시트(400)를 가열하여 연화시킨다. 이때, 합성수지 시트(400)는 폴리프로필렌(polypropylene) 또는 폴리에틸렌(polyethylene) 중 적어도 어느 하나의 재질로 형성한다. 단일 재질또는 이들은 일정하게 혼합한 재질의 경량 팰릿을 사용한 후 이를 재활용할 수 있으므로, 환경오염을 저감시킬 수 있다. 또한, 이 재질들은 그 자체로도 인장강도가 우수하며, 본 발명의 일실시예에서는 이외에도 이에 상응하는 재질의 합성수지를 사용하여도 무방하다. 한편, 강성을 증가시키기 위해 보강제를 첨가하는 것도 가능하다.First, as shown in FIG. 19, in the sheet softening step S410, the thermoplastic synthetic resin sheet 400 is heated and softened by using a heater 410. In this case, the synthetic resin sheet 400 is formed of at least one material of polypropylene or polyethylene. Single materials or these can be recycled after use of lightweight pallets of materials that are constantly mixed, thus reducing environmental pollution. In addition, these materials are excellent in tensile strength by themselves, in addition to the embodiment of the present invention may be used a synthetic resin of the corresponding material. On the other hand, it is also possible to add reinforcing agents to increase the stiffness.
이는 상기 재질의 시트를 본 발명의 일실시예에 따른 합성수지 제조용 금형에 진공흡착시킴으로써 원하는 형상 및 구조의 팰릿을 용이하게 제작할 수 있는데 기인한다. 또한, 같은 이유로, 본 발명의 일실시예에서는 합성수지 시트(400)의 두께를 임의로 조절하는 것에 의해 제조되는 경량 팰릿의 두께를 조절하는 것이 가능하다.This is due to the vacuum suction of the sheet of the material to the mold for producing a synthetic resin according to an embodiment of the present invention can be easily produced pallet of the desired shape and structure. In addition, for the same reason, in one embodiment of the present invention, it is possible to adjust the thickness of the lightweight pallet manufactured by arbitrarily adjusting the thickness of the synthetic resin sheet 400.
다음으로, 도 20에 도시된 바와 같이, 시트 밀착 단계(S420)에서는 연화된 합성수지 시트(400)를 경량 팰릿 제조용 금형(1100) 상에 밀착시킨다. 경량 팰릿 제조용 금형(1100)은 도 15 내지 도 17을 통해 상술한 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형과 동일하므로, 이에 관한 상세한 설명은 상술한 내용을 참고하기로 하고, 이하에서는 생략하기로 한다.Next, as shown in FIG. 20, in the sheet adhesion step (S420), the softened synthetic resin sheet 400 is brought into close contact with the mold 1100 for lightweight pallet production. Since the lightweight pallet manufacturing mold 1100 is the same as the lightweight pallet manufacturing mold according to the embodiment of the present invention described above with reference to FIGS. 15 to 17, a detailed description thereof will be referred to the above description and will be omitted below. Let's do it.
다음으로, 도 21에 도시된 바와 같이, 배기 단계(S430)에서는 경량 팰릿 제조용 금형(1100)이 장착되는 진공성형기(도시하지 않음)를 밀폐한다. 이후, 경량 팰릿 제조용 금형(1100)의 배면에 형성되는 진공 박스(420)와, 진공 박스(420)에 연결되는 진공 펌프(430)에 의해, 돌출부 배기홀을 통해 진공성형기 내의 공기를 급속 배출하여 합성수지 시트(400)에 돌출된 리브를 형성하며, 함몰부 배기홀을 통해 함몰부 상의 잔류 공기를 급속 배출하여 리브의 중간 지점을 열융착시킨다.Next, as illustrated in FIG. 21, in the evacuation step S430, a vacuum molding machine (not shown) on which the mold 1100 for lightweight pallet manufacturing is mounted is sealed. Subsequently, the vacuum box 420 formed on the rear surface of the mold 1100 for lightweight pallet production and the vacuum pump 430 connected to the vacuum box 420 rapidly discharge air in the vacuum molding machine through the protrusion exhaust hole. Protruding ribs are formed on the synthetic resin sheet 400, and the residual air on the depressions is rapidly discharged through the depression exhaust holes to thermally bond the intermediate points of the ribs.
이때, 배기 단계(S430)에 의해 형성되는 리브는, 경량 팰릿 제조용 금형(1100)의 형상에 따라, 내외 이중으로 형성되는 복수의 원형 또는 다각형 리브와, 내외 사이의 원형 또는 다각형 리브를 둘이상의 방향에서 연결하는 연결 리브로 이루어져 경량 팰릿을 지지하는 형상으로 성형되며, 각 리브의 길이 방향 중간 지점에서 양측면이 열융착되어 각 리브가 길이 방향 또는 상하 방향에 대해 응집력을 갖는 형상으로 성형된다. 이와 같이 형성되는 경량 팰릿은 도 1 내지 도 14에 도시되어 있다.At this time, the rib formed by the exhaust step (S430), according to the shape of the lightweight pallet manufacturing die (1100), a plurality of circular or polygonal ribs formed in the inner and outer double and the circular or polygonal rib between the inside and the outside in two or more directions Consists of connecting ribs are formed in the shape to support the lightweight pallet, and both sides are heat-sealed at the middle point in the longitudinal direction of each rib is formed into a shape having a cohesive force in the longitudinal direction or the vertical direction. The lightweight pallets thus formed are shown in FIGS. 1 to 14.
다음으로, 도 22에 도시된 바와 같이, 팰릿완성 단계(S440)에서는 팰릿 형상으로 성형된 시트를 냉각한 후 금형으로부터 이탈시킨다. 또한, 부가적으로 불필요한 부분을 제거하여 경량 팰릿(500)을 완성한다. 덧붙여, 하부 지지 수단을 별도로 더 제작하여 결합하는 것도 가능하다.Next, as shown in FIG. 22, in the pallet completion step S440, the sheet formed in the pallet shape is cooled and then separated from the mold. In addition, the unnecessary portion is removed to complete the lightweight pallet 500. In addition, it is also possible to manufacture and combine the lower support means separately.
이와 같이, 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법은 충격흡수율 및 인장강도 등 내구성이 우수하여 변형 및 파손을 방지할 수 있고, 작업자의 안전을 도모할 수 있는 경량 팰릿을 제작할 수 있다. 또한, 동일한 내구성을 갖는 다른 재질 또는 사출성형 팰릿과 비교하여, 팰릿의 두께가 줄어들기 때문에 중량 및 체적을 최소화하여 운반, 보관, 관리 등의 취급이 용이하다. 예컨대, 종래의 팰릿의 중량이 10~15Kg인데 비하여 본 발명의 일실시예에 따른 경량 팰릿의 중량은 4~5Kg이 된다. 즉, 본 발명의 일실시예에 따른 경량 팰릿 제조용 금형 및 이를 이용한 경량 팰릿의 제조 방법은 팰릿의 강도를 높이고 두께를 줄이는 것에 의해 경량화를 도모할 수 있다. 또한, 단일 또는 이들을 일정하게 혼합한 합성수지재로 성형할 수 있으므로 팰릿의 재활용이 가능하며, 경량 팰릿의 제조 공정을 간단하게 할 수 있고 제조 비용을 절감할 수 있다.As such, the mold for producing a light pallet according to an embodiment of the present invention and a method for manufacturing a light pallet using the same have excellent durability, such as impact absorption and tensile strength, thereby preventing deformation and breakage, and enhancing worker safety. Lightweight pallets can be manufactured. In addition, compared to other materials or injection molded pallets having the same durability, since the thickness of the pallet is reduced, it is easy to handle, such as transportation, storage, management by minimizing the weight and volume. For example, while the weight of the conventional pallet is 10 ~ 15Kg, the weight of the lightweight pallet according to an embodiment of the present invention is 4 ~ 5Kg. That is, the mold for producing a lightweight pallet according to an embodiment of the present invention and a method for manufacturing a lightweight pallet using the same can be reduced in weight by increasing the strength and reducing the thickness of the pallet. In addition, since it can be molded into a single or a constant mixed synthetic resin material, it is possible to recycle the pallet, it is possible to simplify the manufacturing process of the lightweight pallet and reduce the manufacturing cost.
이와 같이, 상술한 본 발명의 기술적 구성은 본 발명이 속하는 기술분야의 당업자가 본 발명의 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다.As such, the technical configuration of the present invention described above can be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.
그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적인 것이 아닌 것으로서 이해되어야 하고, 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타나며, 특허청구범위의 의미 및 범위 그리고 그 등가 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from an equivalent concept should be construed as being included in the scope of the present invention.

Claims (20)

  1. 진공성형으로 형성되는 경량 팰릿에 있어서,In the lightweight pallet formed by vacuum forming,
    판상으로 형성되어 상면에 화물이 적재되는 팰릿 판부;Pallet plate portion is formed in a plate shape is loaded cargo on the upper surface;
    상기 팰릿 판부로부터 상방 또는 하방으로 절곡되어, 상기 팰릿 판부를 지지하는 팰릿 리브부; A pallet rib portion bent upward or downward from the pallet plate portion to support the pallet plate portion;
    상기 팰릿 리브부의 리브가 길이 방향 또는 상하 방향에 대해 응집력을 갖도록 상기 각 리브의 길이 방향 중간 부분에서 양측면이 열융착되는 리브 열융착부; 및A rib heat fusion unit in which both sides of the rib are thermally fused at the middle portion of the longitudinal direction of the rib so that the rib of the pallet rib portion has a cohesive force in the longitudinal direction or the vertical direction; And
    상기 팰릿 판부로부터 하방으로 절곡되어, 상기 팰릿 판부가 일정한 높이를 갖도록 지지하는 복수의 팰릿 지지부;A plurality of pallet support parts bent downward from the pallet plate part to support the pallet plate part to have a predetermined height;
    를 포함하는 경량 팰릿.Lightweight pallet containing.
  2. 제1항에 있어서,The method of claim 1,
    상기 팰릿 리브부는, 상기 팰릿 판부 상에 내외 다중으로 형성되는 복수의 원형 또는 다각형 리브와, 내외 사이의 상기 원형 또는 다각형 리브를 둘이상의 방향에서 연결하는 연결 리브로 이루어지는 것을 특징으로 하는 경량 팰릿.The pallet rib portion is a lightweight pallet, characterized in that consisting of a plurality of circular or polygonal ribs formed on the pallet plate portion in multiple and inside, and connecting ribs connecting the circular or polygonal rib between the inside and outside in two or more directions.
  3. 제2항에 있어서,The method of claim 2,
    최외곽의 상기 원형 또는 다각형 리브는 벌집 구조를 이루는 육각형 리브로 형성되는 것을 특징으로 하는 경량 팰릿.The outermost circular or polygonal rib is a lightweight pallet, characterized in that formed of hexagonal ribs forming a honeycomb structure.
  4. 제2항에 있어서,The method of claim 2,
    상기 원형 또는 다각형 리브는, 최외곽에 사각형 리브가 이웃하여 복수개 형성되고, 상기 최외곽의 사각형 리브 내에도 사각형 리브가 이중으로 형성되는 것을 특징으로 하는 경량 팰릿.The circular or polygonal ribs, a plurality of quadrilateral ribs are formed adjacent to the outermost, lightweight pallets, characterized in that the quadrilateral ribs are also formed in the outermost rectangular ribs.
  5. 제1항에 있어서,The method of claim 1,
    상기 리브 열융착부는 상기 리브보다 좁은 폭이고, 상부가 하방으로 만곡된 형상을 이루는 것을 특징으로 하는 경량 팰릿.The rib heat-sealed portion is narrower than the rib, the lightweight pallet, characterized in that the upper portion forms a curved downward.
  6. 제1항에 있어서,The method of claim 1,
    상기 리브 열융착부는 성형가공열과 진공흡착압에 의해 열융착되는 것을 특징으로 하는 경량 팰릿.The rib heat-sealed portion is a lightweight pallet, characterized in that the heat-sealed by the molding process heat and vacuum adsorption pressure.
  7. 제1항에 있어서,The method of claim 1,
    폴리프로필렌(polypropylene) 또는 폴리에틸렌(polyethylene) 중 적어도 어느 하나의 재질로 형성되는 것을 특징으로 하는 경량 팰릿.Lightweight pallet, characterized in that formed of at least one of polypropylene (polypropylene) or polyethylene (polyethylene).
  8. 제1항에 있어서,The method of claim 1,
    상기 팰릿 판부의 테두리를 따라 상방으로 절곡되는 외곽턱부를 더 포함하는 것을 특징으로 하는 경량 팰릿.Lightweight pallet further comprises an outer jaw portion bent upward along the edge of the pallet plate portion.
  9. 제1항에 있어서,The method of claim 1,
    상기 팰릿 지지부의 하단에 탈착 가능하게 체결되며, 상기 팰릿 지지부를 하방에서 지지하는 복수의 팰릿 하부보조 지지부; 및 상기 팰릿 하부보조 지지부를 서로 연결하여 지지하는 연결 리브부를 더 포함하는 것을 특징으로 하는 경량 팰릿.A plurality of pallet lower auxiliary supports which are detachably fastened to a lower end of the pallet support and support the pallet support below; And a connection rib part for supporting the pallet lower auxiliary support part by connecting to each other.
  10. 제9항에 있어서,The method of claim 9,
    상기 팰릿 지지부는 하단에 체결홀이 형성되고, 상기 팰릿 하부보조 지지부는 상단에 체결 돌기가 형성되어 서로 탈착되는 것을 특징으로 하는 경량 팰릿.The pallet support portion is a fastening hole is formed at the bottom, the pallet lower auxiliary support is a lightweight pallet, characterized in that the fastening protrusions are formed on the top and detached from each other.
  11. 제9항에 있어서,The method of claim 9,
    상기 팰릿 하부보조 지지부는, 상기 팰릿 지지부와 체결되는 상단면으로부터 하단면까지 단차를 두어 충격흡수계단 구조로 형성되는 것을 특징으로 하는 경량 팰릿.The pallet lower secondary support portion is a lightweight pallet, characterized in that the impact absorption staircase structure is formed by placing a step from the top surface to the bottom surface to be fastened with the pallet support.
  12. 제1항에 있어서,The method of claim 1,
    상기 팰릿 판부의 상단에 탈착 가능하게 체결되며, 상기 팰릿 판부를 상방에서 지지하는 팰릿 상부보조 지지부를 더 포함하는 것을 특징으로 하는 경량 팰릿.Removably fastened to the upper end of the pallet plate portion, the lightweight pallet further comprises a pallet upper auxiliary support for supporting the pallet plate portion from above.
  13. 제1항에 있어서,The method of claim 1,
    한 쌍이 서로 마주보도록 결합하여 사용되는 것을 특징으로 하는 경량 팰릿.Lightweight pallet, characterized in that the pair is used in combination to face each other.
  14. 경량 팰릿을 진공성형하기 위한 토대를 이루는 금형 판부;A mold plate part forming a foundation for vacuum forming a lightweight pallet;
    상기 경량 팰릿이 돌출된 리브를 갖도록 상기 금형 판부 상에 형성되는 돌출부;A protrusion formed on the mold plate portion such that the lightweight pallet has a protruding rib;
    상기 돌출부를 따라 상기 금형 판부를 관통하여 형성되는 돌출부 배기홀;A protrusion exhaust hole formed through the mold plate along the protrusion;
    상기 리브의 길이 방향 중간 지점을 열융착시키도록 상기 돌출부의 길이 방향 중간 부분에 형성되는 함몰부; 및A depression formed in the longitudinal middle portion of the protrusion to thermally bond the longitudinal middle point of the rib; And
    상기 함몰부의 바닥면을 따라 상기 금형 판부를 관통하여 형성되는 함몰부 배기홀;A depression part exhaust hole formed through the mold plate part along a bottom surface of the depression part;
    을 포함하는 경량 팰릿 제조용 금형.Lightweight pallet manufacturing mold comprising a.
  15. 제14항에 있어서,The method of claim 14,
    상기 돌출부는 상기 함몰부가 형성되는 부분의 폭이 점진적으로 감소하는 것을 특징으로 하는 경량 팰릿 제조용 금형.The protrusion is a mold for producing lightweight pallets, characterized in that the width of the portion where the recess is formed gradually decreases.
  16. 제14항에 있어서,The method of claim 14,
    상기 돌출부는, 상기 금형 판부 상에 내외 다중으로 형성되는 복수의 원형 또는 다각형 돌기와, 내외 사이의 상기 원형 또는 다각형 돌기를 둘이상의 방향에서 연결하는 연결 돌기로 이루어지는 것을 특징으로 하는 경량 팰릿 제조용 금형.The projecting portion is a lightweight pallet manufacturing mold, characterized in that consisting of a plurality of circular or polygonal projections formed in the inner and outer multiple on the mold plate portion, and connecting projections connecting the circular or polygonal projections between the inside and the outside in two or more directions.
  17. 제14항에 있어서,The method of claim 14,
    상기 함몰부 배기홀은 상기 함몰부의 바닥면에, 상기 돌출부의 길이 방향으로 나란히 형성되는 두 개의 홀로 이루어지는 것을 특징으로 하는 경량 팰릿 제조용 금형. The depression vent holes are formed on the bottom surface of the depression, lightweight pallet manufacturing mold, characterized in that consisting of two holes formed side by side in the longitudinal direction of the protrusion.
  18. 열가소성 합성수지 시트를 가열하여 연화시키는 시트 연화 단계;A sheet softening step of heating and softening the thermoplastic synthetic resin sheet;
    상기 연화된 합성수지 시트를, 경량 팰릿을 진공성형하기 위한 토대를 이루는 금형 판부와, 상기 경량 팰릿이 돌출된 리브를 갖도록 상기 금형 판부 상에 형성되는 돌출부와, 상기 돌출부를 따라 상기 금형 판부를 관통하여 형성되는 돌출부 배기홀과, 상기 리브의 길이 방향 중간 지점을 열융착시키도록 상기 돌출부의 길이 방향 중간 부분에 형성되는 함몰부와, 상기 함몰부의 바닥면을 따라 상기 금형 판부를 관통하여 형성되는 함몰부 배기홀을 포함하는 경량 팰릿 제조용 금형 상에 밀착시키는 시트 밀착 단계;The softened synthetic resin sheet has a mold plate forming a foundation for vacuum molding the lightweight pallet, a protrusion formed on the mold plate so as to have ribs protruding from the lightweight pallet, and penetrating the mold plate along the protrusion. A protrusion exhaust hole to be formed, a depression formed in the longitudinal middle portion of the protrusion to thermally bond the intermediate point in the longitudinal direction of the rib, and a depression formed through the mold plate along the bottom surface of the depression; A sheet contact step of bringing the sheet into close contact with the mold for manufacturing a lightweight pallet including an exhaust hole;
    상기 금형이 장착되는 진공성형기를 밀폐한 후, 상기 돌출부 배기홀을 통해 상기 진공성형기 내의 공기를 급속 배출하여 상기 합성수지 시트에 돌출된 리브를 형성하며, 상기 함몰부 배기홀을 통해 상기 함몰부 상의 잔류 공기를 급속 배출하여 상기 리브의 중간 지점을 열융착시키는 배기 단계; 및After sealing the vacuum molding machine in which the mold is mounted, the air in the vacuum molding machine is rapidly discharged through the protrusion exhaust hole to form ribs protruding from the synthetic resin sheet, and the residue on the depression through the depression exhaust hole is maintained. An exhaust step of rapidly exhausting air to heat seal the intermediate point of the rib; And
    상기 팰릿 형상으로 성형된 시트를 냉각한 후 상기 금형으로부터 이탈시키는 팰릿완성 단계;A pallet completion step of cooling the sheet formed in the pallet shape and leaving the mold;
    를 포함하는 경량 팰릿의 제조 방법.Method of manufacturing a lightweight pallet comprising a.
  19. 제18항에 있어서,The method of claim 18,
    상기 함몰부 배기홀을 상기 함몰부의 바닥면에서 상기 돌출부의 길이 방향으로 나란히 형성되는 두 개의 홀로 형성하는 것을 특징으로 하는 경량 팰릿의 제조 방법. The depression part exhaust hole is formed on the bottom surface of the depression method for producing a lightweight pallet, characterized in that formed in two holes side by side in the longitudinal direction of the protrusion.
  20. 제18항에 있어서,The method of claim 18,
    상기 배기 단계에 의해 형성되는 리브는, 내외 이중으로 형성되는 복수의 원형 또는 다각형 리브와, 내외 사이의 상기 원형 또는 다각형 리브를 둘이상의 방향에서 연결하는 연결 리브로 이루어져 상기 경량 팰릿을 지지하는 형상으로 성형되며,The rib formed by the evacuation step is formed into a shape for supporting the lightweight pallet consisting of a plurality of circular or polygonal ribs formed in a double inside and outside, and connecting ribs connecting the circular or polygonal ribs between the inside and the outside in two or more directions. ,
    상기 각 리브의 길이 방향 중간 지점에서 양측면이 열융착되어 상기 각 리브가 길이 방향 또는 상하 방향에 대해 응집력을 갖는 형상으로 성형되는 것을 특징으로 하는 경량 팰릿의 제조 방법.Both sides of the ribs are heat-sealed at the midpoint of the longitudinal direction of each of the ribs, each rib is molded into a shape having a cohesive force in the longitudinal direction or the vertical direction.
PCT/KR2010/006641 2009-09-29 2010-09-29 Lightweight pallet, mold for producing lightweight pallets, and method for producing lightweight pallets using the mold WO2011040758A2 (en)

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KR20110035832A (en) 2011-04-06

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