• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The object of the invention is a reused cardboard pallet having the legs adhered to a loading surface (1). The loading surface (1) is composed of a core (2) having an outer covering (4) consisting of a sheet of paper or cardboard. The core (2) is formed by flat (square) or rectangular (3) cuts of corrugated cardboard of various qualities and thicknesses coming from a mixture of discarded cardboards of various types. The cutouts (3) are superimposed in several layers parallel to the loading surface (1) and are interlocked leaving gaps between them. The cutouts (3) are attached to the cover (4) and to each other by adhesive and are positioned randomly with the corrugation in various directions. The cutouts (3) are partially compacted by forming the core (2) in such a way that they retain part of the original corrugation. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2706204A1
    申请号:ES201700721
    申请日:2017-09-27
    公开日:2019-03-27
    发明作者:Sanz Pablo Gomez
    申请人:Sanz Pablo Gomez；
    IPC主号:
    专利说明:

    [0001]
    [0002] Reused cardboard pallet.
    [0003]
    [0004] Sector of the technique in which the invention is framed
    [0005]
    [0006] The present invention relates to a low cost pallet manufactured mostly from reused corrugated cardboard.
    [0007]
    [0008] State of the art
    [0009]
    [0010] Currently, several patents and utility models are known that are more expensive because they are not manufactured with reused material.
    [0011]
    [0012] In PCT / US2004 / 040373 a single-use pallet is proposed, which has the disadvantage of being complicated to manufacture and assemble and of needing corrugated board sheets manufactured for that purpose.
    [0013]
    [0014] In the document PCT / ES2001000447 a pallet is described in which the legs require 2 additional fixing plates to the loading surface and the gluing of 2 full layers of corrugated cardboard of first use.
    [0015]
    [0016] Explanation of the invention
    [0017] The pallet object of invention uses as main raw material cuts (3) mixed corrugated cardboard from the fragmentation of used and discarded packaging.
    [0018]
    [0019] The pallet has a loading surface (1) composed of a core (2) having an upper (4) covering and a lower one consisting of a sheet of high-strength paper or a flat or corrugated board adhering thereto . The core (2) is formed by overlapping cutouts (3) of corrugated cardboard that can be of various qualities, thicknesses, sizes, shapes and resistances that are randomly oriented in various directions and joined together by adhesive until the desired thickness is achieved. The cutouts (3) are flat and are positioned in several layers parallel or almost parallel to the loading surface (1), leaving gaps between them. The cutouts (3) are partially compacted when forming the core (2) in such a way that they preserve part of the original corrugation, being interlaced with each other when they are on top of each other. For a better use of the used cardboard, the cutouts (3) will preferably have a square or rectangular shape, although any flat geometric shape is valid.
    [0020]
    [0021] The upper and lower faces of the core (2) are smooth to allow a correct adhesion of the coating (4) on both surfaces.
    [0022]
    [0023] The advantages of this pallet compared to other pallets of cardboard or wood are a greater lightness provided by the use of corrugated cardboard and by the gaps left between the cuts (3) that form the core (2), a lower manufacturing cost using as main raw material waste material instead of cardboard chips manufactured ex-process, a lower environmental impact by avoiding a complete cycle of recycling at the factory to produce cardboard sheets and the possibility of automating the manufacture of the loading surface ( 1) using a continuous feeding line combined with an adhesive spray system, a roller compaction system or the like, a continuous roll coating system (4) and an automatic cutting system. Furthermore, when the cuts (3) are interlaced, the flexural strength of the core (2) is increased, so that lower thicknesses can be achieved than in other types of pallets.
    [0024] The manufacturing system is also advantageous as it is possible to randomly dump the cuttings (3), which will fall and overturn by gravity to remain horizontal until reaching the desired thickness.
    [0025]
    [0026] BRIEF DESCRIPTION OF THE DRAWINGS
    [0027]
    [0028] Figure 1 shows a pallet of reused cardboard with an upper and lower covering (4) and a core (2) formed by cutouts (3) of various shapes randomly oriented and superimposed in layers.
    [0029]
    [0030] Figure 2 shows the loading surface (I) of a reused cardboard pallet which has on its lower face depressions (5) in which the legs and some corners (7) will be housed in the lateral faces of the surface Load (1).
    [0031]
    [0032] Figure 3 shows a coating (4) of corrugated cardboard having perforations (6) in which the legs will be housed.
    [0033]
    [0034] Detailed description of an embodiment
    [0035]
    [0036] Next, the loading surface (1) and the legs of the pallet are described, as well as various ways of joining the legs to the loading surface (1).
    [0037]
    [0038] The legs of the pallet can be of any known type, such as hollow or solid cardboard legs of rectangular, square or circular section.
    [0039]
    [0040] The loading surface (1) of the pallet can be square or rectangular and is formed by a core (2) having on its lower and upper side adhered sheets of paper or cardboard sheets as a covering (4) serving to provide the loading surface (1) with a correct visual finish, avoiding that the different colors and inscriptions and printed texts of the cutouts are visible (3). In addition, the combination of the upper and lower coatings (4) with a core (2) of sufficient thickness provides the load surface (1) with a high resistance to bending.
    [0041]
    [0042] The cutouts (3) that make up the core (2) are oriented in a disordered manner to facilitate the manufacturing process, which may consist of the random pouring into the upper and lower layers of the cut-out covering (4) (3). ) sprayed with adhesive on a mold or on a feeding line, as well as to give uniformity to the flexural strength of the pallet, preventing the edges of several cuts (3) from being aligned or overlapping forming weak areas.
    [0043]
    [0044] In order to ensure that the core (2) has a uniform thickness and a smooth surface on both sides that facilitates the gluing of the covering sheets (4), a partial compaction of the core (2) will be carried out by means of rollers or molds that mainly affect to the upper and lower faces of the core (2). This compaction will also serve to have a better contact between the overlapping cutouts (3) that facilitate the gluing of the same.
    [0045]
    [0046] The compacting process may be carried out before or after placing the cut-outs (3) between the covering sheets (4) and may be facilitated by using an adhesive with a high percentage of water that softens the outermost areas for a better surface uniformity , as well as for a better contact between the cuts (3).
    [0047]
    [0048] In the following, an embodiment is described in which the lower face of the loading surface (1) is completely smooth. The legs can consist of point supports of square or round section, in which case the pallet will have four entries for its manipulation, or they can be of rectangular section, of length equal to one of the sides of the loading surface (1), to form pallets with two entrances. In both cases the legs are adhered to the loading surface (1).
    [0049]
    [0050] A second possibility of realization consists of a pallet whose loading surface (1) has on its underside of depressions (5) in which the legs are housed and adhered.
    [0051]
    [0052] The pallet can also have perforations (6) in the lower covering (4) of corrugated cardboard in which the legs are inserted. The depressions (5) or the perforations of (6) are arranged to facilitate the assembly of the legs and to increase the resistance of the same against lateral impacts.
    [0053]
    [0054] In all cases, the pallet can have an additional covering (4) consisting of a sheet of smooth or corrugated paper or board adhered externally to the coating (4) of the core (2) which will provide additional resistance to bending and a better visual finish.
    [0055]
    [0056] The manufacture of load surfaces (1) with double coating (4) provides a great advantage when using adhesives with a large percentage of water to bond the core (2) since the contact between both sheets will occur on a dry surface, improving the strength of the union.
    [0057]
    [0058] In all cases, the covering sheets (4) can also cover the side faces of the core (2) to provide greater strength and a better finish.
    [0059]
    [0060] In all cases the pallet can have corners (7) adhered to the side faces of the load surface (1). The corner pieces (7) may have a rectangular shape, coinciding with the side faces, or may have a "U" shape, such that the central side of the "U" coincides with the side faces of the core (2) and sides The "U" sides are adhered to the upper and lower layers of the core (2) The corner pieces (7) may be above or below the covering sheets (4) of the pallet.
    [0061]
    [0062] In all cases, a core stapling process (2) can be incorporated with the coatings (4) to improve the bonding process by exerting pressure during the drying of the adhesive, each load surface (1) having several staples.
    [0063]
    [0064] In all cases, the core (2) can have an intermediate sheet (8) of the size of the load surface (1) which is positioned at a medium thickness and which contributes to the improvement of the bonding of the cutouts (3) by covering some holes.
    [0065]
    [0066] In all cases the cutouts (3) may be presented in the same or different shapes, sizes and qualities.
    权利要求:
    Claims (13)
    [1]
    1. Reused cardboard pallet characterized in that it comprises cardboard legs adhered to a loading surface (1) composed of a flat core (2) and a covering (4) of its upper and lower faces consisting of a paper plate or cardboard adhered to it. The core (2) is formed by flat (3) cutouts of corrugated cardboard of various qualities and thicknesses from a mixture of discarded cartons that are superimposed in layers parallel to the loading surface (1) or almost parallel, interlaced and leaving gaps each other and linked together by adhesive. The cutouts (3) are positioned randomly with the corrugation in various directions and are partially compacted when forming the core (2) in such a way that they retain part of the original corrugation.
    [2]
    2. Reused cardboard pallet according to the previous claim, characterized in that the cutouts (3) are square or rectangular.
    [3]
    3. Pallet cardboard reused according to previous claims characterized in that the coating (4) is corrugated cardboard.
    [4]
    Pallet cardboard reused according to previous claims characterized in that the coating (4) is single-ply cardboard or high-strength paper.
    [5]
    Pallet cardboard reused according to previous claims characterized in that it has an additional coating (4) consisting of a sheet of paper or smooth or corrugated cardboard adhered externally to the coating (4) of the core (2).
    [6]
    6. Reused cardboard pallet according to previous claims, characterized in that it has several staples that join the core (2) with the coatings (4).
    [7]
    7. Reused cardboard pallet according to the previous claims, characterized in that the loading surface (1) has, on its underside, depressions (5) whose section is coincident with the section of the legs.
    [8]
    8. Reused cardboard pallet according to previous claims, characterized in that it has perforations (6) in the lower covering (4) whose section is coincident with that of the legs.
    [9]
    9. Reused cardboard pallet according to the previous claims, characterized in that it has corners (7) adhered to the lateral faces of the loading surface (1).
    [10]
    10. Reused cardboard pallet according to the previous claims, characterized in that the covering (4) also wraps the lateral faces of the core (2).
    [11]
    Pallet cardboard reused according to previous claims characterized in that the core (2) has an intermediate sheet (8) the size of the loading surface positioned at half thickness.
    [12]
    12. Pallet cardboard reused according to previous claims characterized in that the cutouts (3) are of various sizes and shapes.
    [13]
    13. Reused cardboard pallet according to previous claims characterized in that the adhesive has a high percentage of water.
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    同族专利:
    公开号 | 公开日
    ES2706204B2|2020-02-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH558741A|1974-02-21|1975-02-14|Vecere Philip J|Disposable pallet made from cardboard layers - has flat load-carrying plate supported on four footrests|
    GB2127773A|1982-10-07|1984-04-18|Redditch Packaging Products Li|Pallets|
    US4931340A|1985-12-28|1990-06-05|Sumitomo Light Metal Industries, Ltd.|Honeycomb panel structure|
    EP0518628A1|1991-06-14|1992-12-16|Henry L Liebel|Composite article made from used or surplus corrugated boxes|
    US5543205A|1991-06-14|1996-08-06|Corrcycle, Inc.|Composite article made from used or surplus corrugated boxes or sheets|
    US5702560A|1993-03-15|1997-12-30|Skinner; Larkin P.|Apparatus for the manufacture of a laminated web from recycled corrugated cardboard|
    US20030000432A1|2001-01-19|2003-01-02|Joaquin Crevillen Pastor|Cardboard pallet|
    US20100043678A1|2008-03-28|2010-02-25|Oria Collapsibles, Llc|Structural supporting substrate incorporated into a composite and load supporting platform|
    WO2013058703A1|2011-10-18|2013-04-25|Lpi Light Panel Innovation Ab|Method of manufacturing a sandwich material board|
    法律状态:
    2019-03-27| BA2A| Patent application published|Ref document number: 2706204 Country of ref document: ES Kind code of ref document: A1 Effective date: 20190327 |
    2020-02-10| FG2A| Definitive protection|Ref document number: 2706204 Country of ref document: ES Kind code of ref document: B2 Effective date: 20200210 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201700721A|ES2706204B2|2017-09-27|2017-09-27|Reused cardboard pallet|ES201700721A| ES2706204B2|2017-09-27|2017-09-27|Reused cardboard pallet|
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