EP3670375A1 - Fuss für eine nestbare palette und palette mit einer vielzahl von füssen - Google Patents

Fuss für eine nestbare palette und palette mit einer vielzahl von füssen Download PDF

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Publication number
EP3670375A1
EP3670375A1 EP18382981.1A EP18382981A EP3670375A1 EP 3670375 A1 EP3670375 A1 EP 3670375A1 EP 18382981 A EP18382981 A EP 18382981A EP 3670375 A1 EP3670375 A1 EP 3670375A1
Authority
EP
European Patent Office
Prior art keywords
pallet
foot
feet
vertical
movable part
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP18382981.1A
Other languages
English (en)
French (fr)
Other versions
EP3670375B1 (de
Inventor
Josep Ramón Viola Terès
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to ES18382981T priority Critical patent/ES2905581T3/es
Priority to EP18382981.1A priority patent/EP3670375B1/de
Priority to RU2019141131A priority patent/RU2019141131A/ru
Priority to CA3065068A priority patent/CA3065068A1/en
Priority to MX2019015621A priority patent/MX2019015621A/es
Publication of EP3670375A1 publication Critical patent/EP3670375A1/de
Application granted granted Critical
Publication of EP3670375B1 publication Critical patent/EP3670375B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B65D19/38—Details or accessories
    • B65D19/40—Elements for spacing platforms from supporting surface
    • 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
    • B65D19/002—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 more than one element
    • B65D19/0024—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 more than one element forming discontinuous or non-planar contact surfaces
    • B65D19/0028—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 more than one element forming discontinuous or non-planar contact surfaces and each 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
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38—Details or accessories
    • 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
    • B65D2519/00273—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
    • B65D2519/00283—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
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00323—Overall construction of the base surface 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
    • B65D2519/00313—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
    • B65D2519/00398—Overall construction reinforcements
    • B65D2519/00402—Integral, e.g. ribs
    • 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
    • B65D2519/00398—Overall construction reinforcements
    • B65D2519/00402—Integral, e.g. ribs
    • B65D2519/00407—Integral, e.g. ribs on the load supporting surface
    • 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
    • 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
    • B65D2519/00736—Details
    • B65D2519/00776—Accessories for manipulating the pallet
    • 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
    • B65D2519/00736—Details
    • B65D2519/00776—Accessories for manipulating the pallet
    • B65D2519/00796—Guiding means for fork-lift
    • 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
    • B65D2519/00736—Details
    • B65D2519/00935—Details with special means for nesting or stacking
    • B65D2519/0094—Details with special means for nesting or stacking nestable

Definitions

  • the present invention relates to a pallet foot and a pallet body and pallet foot assembly especially designed for automated logistic installations.
  • Several developments are presented below that facilitate the automatic handling of the pallet.
  • the feet and the pallet described here also have advantages for use with operator manipulation, especially because they are designed to prevent breakage, minimize impact damage and facilitate handling.
  • the lower part is formed by a lateral wall and a bottom wall.
  • the bottom wall has a surface that will withstand the weight of the pallet and its load.
  • the lateral wall is a part that is exposed to impacts, mainly coming from the bars of the pallet trucks.
  • the lower part has a cross section smaller than the upper part, so that when stacking one pallet on top of another pallet, the feet can be fitted thus reducing the height of the resulting stack.
  • a geometric envelope is defined in the lower part.
  • This geometric envelope should be understood as that geometric shape in which the foot of the pallet is inscribed, that is to say that it does not take into account the details such as recesses, holes, etc. It is therefore a surface that contains the foot.
  • Known pallets are generally designed to withstand certain loads, resist impacts, facilitate their stacking, facilitate their handling, and, to a lesser extent, be managed by automatic installations.
  • a drawback of the known nestable pallets is that their borders at the level of the feet and the pallet body are different, which is an inconvenience when centering the pallets in the pallet conveyor belts. That is to say that the pallet will not be centered in the same way in a lane provided with a raised fence, so the pallet body will impact, that in a lane provided with an edge located at the level of the feet.
  • FIGS. 1 and 2 This is illustrated in FIGS. 1 and 2 .
  • the position in which the pallet will remain after reaching the obstacle F will differ according to the height of the obstacle F.
  • the present invention is especially designed for pallets provided with replaceable feet.
  • the present invention proposes a foot for pallet, a lower part and an upper part being defined in the foot, the lower part being formed by a lateral wall and a bottom wall and the lower part having a cross section smaller than the upper part, so that when stacking one pallet on top of another pallet, the feet can be fitted thus reducing the height of the resulting stack, a geometric envelope being defined in the lower part, and wherein the lateral wall comprises a at least one movable part, the movable part being displaceable between a hidden position in which it does not protrude from the geometric envelope, and an extension position in which it protrudes from the geometric envelope.
  • the foot comprises a housing for the movable part, the housing being an outwards oriented cavity.
  • the movable part is articulated with an axis arranged in the lower section of the cavity.
  • the movable element is retractable according to other kinematics.
  • it can be conceived that it is hidden in translation, or by a combined movement of translation and rotation. It can also be conceived to be hidden vertically or horizontally, providing convenient shapes to allow the movement to be effective while minimizing the risk of blockage.
  • movable part has a lower extension which, in the hidden position protrudes from the bottom wall, such that, when the foot rests on a bearing surface, the lower extension is pressed thus pushing the movable part towards the extension position.
  • the hidden position the lower extension is displaced with respect to the vertical projection of the axis so that when the foot approaches the ground, the contact with the ground exerts a moment with respect to the axis that causes the rotation of the movable part towards the extension position.
  • the lower part and the upper part have a constant section, the transition between the lower part and the upper part having a decreasing section, such that there is a smooth transition between the lower part and the upper part.
  • the foot is oblong such that a length and a width are defined, the movable part being placed on a wall placed along the length direction. It is preferred that the movable part occupies practically all the lateral length of the feet.
  • the lower part is provided with vertical stiffeners such that vertical through channels are formed in the lower part, the stiffeners being widened at their lower end.
  • the invention also relates to a pallet comprising a pallet body and a plurality of feet, the pallet body having a length greater than the width, the pallet comprising four feet placed at the corners and two feet placed near the smaller side of the pallet body, and wherein the corner feet are according to any of the inventive variants disclosed above, the movable part being placed at the outer side. Extra foot at the centreline of the long direction of the pallet can be also considered.
  • the pallet body comprises a through hole for housing each foot, a surface of the holes and the upper part of the feet being provided with coupling means such that the feet are replaceable.
  • the coupling means comprise a plurality of vertical channels arranged in the surface of the holes, and hooks arranged in the upper part of the feet.
  • the coupling between the vertical channels and hooks has a horizontal gap between 1 and 5 mm, preferably between 1 and 3 mm and more preferably between 1 and 2 mm.
  • the pallets are subjected to strongly variable temperatures (differences up to 30o), since they are handled between open and closed spaces, while being subjected to highly variable forces. Besides, the market is global, and therefore they have to withstand different weather conditions.
  • the coupling between the vertical channels and hooks has a vertical gap between 1 and 5 mm, preferably between 1 and 3 mm and more preferably between 1 and 2 mm.
  • the vertical gap on the external side of the foot is smaller than the vertical gap on the internal side, such that the foot can rotate about a longitudinal axis.
  • the lateral feet tend to rotate away from the vertical longitudinal medium plane of the pallet.
  • the space between foot, on the frontal/ rear sides of the pallet increases about some mm greater, thus increasing the space for the bars of the pallet trucks, and thus reducing even more the possibilities of damaging the foot.
  • the present invention also relates to a pallet comprising a pallet body and a plurality of feet, wherein that the pallet body and/or the feet comprise bumpers on the edges.
  • the pallet bumpers are molded in the pallet body and/or the feet themselves.
  • the invention relates to a foot 1 for pallet P, a lower part 11 and an upper part 12 being defined in the foot 1.
  • the lower part is formed by a lateral wall L11 and a bottom wall B11.
  • the lower part 11 has a cross section smaller than the upper part 12, so that when stacking one pallet P on top of another pallet P, the feet 1 can be fitted thus reducing the height of the resulting stack, as shown in FIGS. 7 or 8 .
  • a geometric envelope is defined in the lower part 11, which defines the general shape of the foot.
  • the lateral wall L11 comprises a movable part 13, which is displaceable between a hidden position in which it does not protrude from the geometric envelope (See FIG. 4 or 19 ), and an extension position in which it protrudes from the geometric envelope (See FIG. 3 or 20 ).
  • the section of the ends has also been optimized, which is rounded to allow the mobile element to rise in case of hitting an obstacle, such as a stone. It is noted that although more and more pallets run through automated systems, it will still be common for pallets to be "mistreated", such as dragged, or pushed on the floor of industrial warehouses, etc.
  • the foot comprises a housing 14 for the movable part 13, the housing being an outwards oriented cavity 14, as shown in FIG. 20 .
  • the movable part 13 is articulated with an axis ⁇ arranged in the lower section of the cavity 14, as shown in FIGS. 20 and 26a .
  • the movable part 13 has a lower extension 15 which, in the hidden position protrudes from the bottom wall B11, such that, when the foot rests on a bearing surface S, the lower extension 15 is pressed thus pushing the movable part 13 towards the extension position.
  • the lower extension 15 In the hidden position the lower extension 15 is displaced with respect to the vertical projection of the axis ⁇ so that when the foot approaches the ground, the contact with the ground exerts a moment with respect to the axis ⁇ that causes the rotation R of the movable part 13 towards the extension position.
  • Figure 5b shows another embodiment of the invention, in which the movable part is placed at the outer end of the foot, without the need to be hidden. It is only necessary that the shape of the leg is stepped just above the movable part.
  • the movable part can be moved according to a translational movement. That is, instead of rotating, it moves in translation.
  • the displacement is vertical, so that when the pallets P are stacked, the movable part 13 does not constitute an obstacle, but when the pallet P is unstacked, the moving part falls by its own weight.
  • the lower part 11 and the upper part 12 have a constant section, the transition 16 (16A, 16B) between the lower part 11 and the upper part 12 having a decreasing section, such that there is a smooth transition between the lower part 11 and the upper part 12.
  • the foot is oblong such that a length and a width are defined, the movable part 13 being placed on a wall placed along the length direction, and occupying more than 60% of the whole length, as shown in FIG. 20 .
  • the lower part 11 is provided with vertical stiffeners 17 such that vertical through channels CH are formed in the lower part 11, the stiffeners being widened at their lower end 17a such that the horizontal reflective surface is increased.
  • FIGS. 29 to 32 a pallet comprising a pallet body 2 and a plurality of feet 1, 1' is disclosed, as depicted in FIGS. 29 to 32 .
  • the pallet body 2 has generally a length greater than the width, the pallet comprising four feet 1 placed at the corners and two feet 1' placed near the smaller side of the pallet body 2.
  • the corner feet 1 are according to any of the variants disclosed above, the movable part 13 being placed at the outer side.
  • the pallet body 2 comprises a through hole H for housing each foot 1, 1', a surface 2S of the holes H and the upper part of the feet 1, 1' being provided with coupling means such that the feet 1, 1' are replaceable.
  • the holes have the direction perpendicular to the general plane of the pallet.
  • the coupling means comprise a plurality of vertical channels 21 arranged in the surface of the holes H, and hooks 22 arranged in the upper part of the feet 1, 1'.
  • the coupling between the vertical channels 21 and hooks the 22 has a horizontal gap between 1 and 2 mm.
  • the coupling between the vertical channels 21 and hooks the 22 has a vertical gap between 1 and 2 mm.
  • a pallet P comprising a pallet body 2 and a plurality of feet 1, the pallet body 2 having a length greater than the width, the pallet comprising at least four feet 1 placed at the corners, wherein the pallet body 2 comprises a through hole H for housing each foot 1, a surface 2S of the holes H and the upper part of the feet 1 being provided with coupling means such that the feet 1 are replaceable, characterised in that the coupling means comprise a plurality of vertical channels 21 arranged in the surface of the holes H, and hooks 22 arranged in the upper part of the feet 1, the vertical channels 21 and hooks the 22 having a horizontal gap between 1 and 2 mm and a vertical gap between 1 and 2 mm.
  • the vertical gap on the external side of the foot is smaller than the vertical gap on the internal side, such that the foot can rotate about a longitudinal axis L ⁇ .
  • This axis is also represented in FIG. 25d .
  • this ability to rotate is possible thanks to the hooks 22b (internal) being longer than the outer ones 22a. It is emphasized that it is a very light rotation, of few degrees, only that allowed by the difference in length between the mentioned internal and external hooks.
  • the effect is shown in Figures 25c and 25d .
  • the lowest point of the foot Upon reaching the ground, the lowest point of the foot will tend to move a few millimeters to the outside, and the foot will rotate. Therefore, those few millimeters will bring the outer side of foot L11 closer to the vertical plane that defines the body of the pallet. With this, the width of the moving part can be reduced slightly, although appreciably in relative terms.
  • a pallet P comprising a pallet body 2 and a plurality of feet 1, the pallet comprising at least four feet 1 placed at the corners, wherein the pallet body 2 comprises a through hole H for housing each foot 1, a surface 2S of the holes H and the upper part of the feet 1 being provided with coupling means such that the feet 1 are replaceable, characterised in that the coupling means comprise a plurality of vertical channels 21 arranged in the surface of the holes H, and hooks 22 arranged in the upper part of the feet 1, wherein the coupling between the vertical channels 21 and hooks the 22 has a vertical gap, wherein the vertical gap on the external side of the foot is smaller than the vertical gap on the internal side, such that the foot can rotate about a longitudinal axis L ⁇ .
  • the invention also relates to a pallet P comprising a pallet body 2 and a plurality of feet 1, 1', characterised in that the pallet body 2 and/or the feet comprise bumpers on the edges.
  • the invention also relates to pallet components, either feet or pallet bodies, provided at the edges with at least one impact absorber (bumper) B1, B2, B3, B4, B5.
  • the bumpers are arranged on the sides of the pallet, except for the fitting edges of the feet, so as not to weaken the coupling between the feet and the pallet body.
  • the bumpers are designed in different ways for the body of the pallet and for the feet.
  • the bumpers are materialized through grooves GR arranged in the vicinity of the lateral parts so that between the groove GR and the outside there is a narrow plastic wall PW.
  • Vertical absorbers walls AB are arranged in the groove GR, which act as energy absorbers. In this way, in case of impact, damage is minimized strongly.
  • these bumpers are embodied as perimeter protrusions B4 arranged at the longitudinal ends of the feet, in the upper part 11 of the feet, at the level of the connection with the pallet body.
  • the bumpers consist of elongated projection, and provided with vertical holes, so that a deformable element is formed.
  • the height of the leg bumpers will be chosen from 1 to 2 cm in height and will more preferably be 1.5 cm.
  • this height corresponds to that which allows the bumper to serve as a support between stacked pallets. Indeed, when stacking the pallets, the lower surface of the feet will rest on the upper edge of the ribs (17) of the feet of the lower pallet. In that situation, the bumpers will also receive pressure above their own pallet, and below the pallet on which their own pallet rests. This will contribute to further increase the support surface between pallets, decreasing the efforts, increasing their useful life.
  • a foot 1 for pallet P a lower part 11 and an upper part 12 being defined in the foot 1, the upper part comprising a coupling portion to a pallet body 2, bumpers B4, B5 being arranged below the coupling portion.
  • the bumpers B4, B5 are molded with the foot itself and consist of a protruding edge, the protruding edge being provided with holes, such that an external wall and absorber walls are defined.
  • a pallet body 2 comprising bumpers B1, B2 consisting in grooves or channels GR, such that an external wall PW is defined that separates the grooves or channels GR from the outside, absorber walls or stiffeners AB being arranged in the grooves or channels GR.
  • the thickness of the pallet wall PO, in the outer edge of the pallet foots 1, is between 15 and 20 mm, and is preferably 16 mm. This distance is an optimal compromise between the need to have a resistant area for the feet, and on the other hand the need to have the foot as close to the edge, and leave the maximum space between feet for the passage of the bars of the pallet trucks.
  • the length (understood as the dimension according to the longitudinal dimension) of the foot is also a compromise between:
  • the feet arranged in the central plane have two parts, one arranged more external, close to the external front, and another disposed towards the interior.
  • the outermost part has a greater width than the inner part.
  • the reason for this is that the dimensions of the external part, which is where the pallet truck operates, corresponds to the width of the central feet of standard wooden feet.
  • the two orientation protuberances 11', 12' are aimed at providing means for correctly orienting the pallet when it is not correctly oriented, that is when the sides are not parallel to the movement direction.
  • By providing two protuberances or two vertical edges in the central foot one of them will contact a stop fence and then will tend to correctly orientate the pallet. Even if the effect is for a few degrees, it is important for reducing misalignments that could hind the correct handling of the pallets in an automatic facility.
  • some conveyors have vertical centering and guiding rollers GW.
  • these rollers roll on the inner lateral surface PR of the feet.
  • they are adapted to rest on the inner vertical surface PR of wooden pallets.
  • these centering rollers GW generally have a chamfered shape, so that their diameter is decreasing at the ends of the tread.
  • the present invention relates to nestable pallets, in which the feet are of decreasing section.
  • the centering and guiding rollers are arranged in a certain way on the conveyors, so that the location of the tread plane PR on the foot is fixed and imposes a maximum width of the foot wf , in case the section is left constant or kept decreasing, as can be seen in figure 33 .
  • an enlargement EX is provided on the inner side of the foot, so that the width of the foot is increased to wf ' .
  • This feature relates to a foot for pallet, the foot comprising an upper part couplable to a pallet body and a lower part wherein the horizontal cross-section of the foot changes at a predetermined height to a horizontal cross-section whose length is smaller than the length of the bottom wall of the foot.
  • the bottom wall of the foot is long enough to be supported by at least two rollers of a roller conveyor disposed underneath the foot and, at the same time, when the feet are coupled to a pallet, a standard pallet carrier fork fits between the feet being able to lift the pallet.
  • the present invention relates to nestable pallets, in which the feet are of decreasing section.
  • the feet When a pallet is moved on a roller conveyor disposed underneath the feet of the pallet, the feet should be long enough to be supported by at least two consecutive rollers at any time. Otherwise, the pallet would fall between the two consecutive rollers. However, if the feet are two long, the fork of a pallet carrier would collide with the feet when introducing the fork between the feet of the pallet or, once introduced, when the fork lifts the pallet.
  • the feet comprise a lower part which comprises a bottom wall B11 which is longer than the distance between two consecutive rollers of a roller conveyor. Specifically, given a roller conveyor with an inter-roller distance below 250 cm, the length of the lower surface can be between 250 and 300 cm.
  • a foot of a pallet 2 comprises a horizontal cross-section section whose length at a continuous height range is smaller than the length of the bottom wall of the lower part of the feet.
  • the horizontal cross-section of the feet can change gradually (e.g. as shown by the change of horizontal cross-section 24 and the wedge-shaped section 23).
  • the difference between the length of the horizontal cross-section in the continuous height range and the length of the bottom wall of the lower part of the feet can be between 30 and 40 cm.
  • the predetermined height at which the horizontal cross-section of the foot changes can be between 15 and 150 cm.
  • these specific values can change according to the configuration of the fork of the pallet carrier (e.g. width, thickness, height of each fork bar).
  • the predetermined height can be a standard thickness of wood bars of the lower surface of standard pallets (the wood bars over which a fork of a carrier is introduced in order to lift the pallet).
  • This embodiment comprises a change of a horizontal cross-section 24 of the feet 1, defining a wedge-shaped section 23 disposed on rear part of feet 1, flushing with the bottom wall B11 of feet 1.
  • the horizontal cross-section of the wedge-shaped section 23 decreases as the height of the wedge-shaped section 23 increases, until reaching a particular length of the horizontal cross-section.
  • the previous embodiment can comprise a plurality of hooks on the external 22a and internal side 22b of the foot, arranged in the upper part of the feet 1 for coupling with a plurality of vertical channels 21 arranged in the surface of the holes H.
  • This coupling comprises a vertical gap.
  • the vertical gap on the external side 22a of the foot can be smaller than the vertical gap 22b on the internal side, such that the foot can rotate about a longitudinal axis determined by the plurality of hooks of the external side L ⁇ .
  • the coupling between the vertical channels 21 and hooks the 22 has a horizontal gap between 1 and 2 mm.
  • the previous embodiment can comprise detectors arranged underneath the foot and oriented upwards, which is a further aspect of the present invention that facilitates its handling in automatic installations.
  • the previous embodiment can comprise vertical stiffeners 17 in the lower part 11 such that vertical stiffeners through channels CH are formed in the lower part 11, the stiffeners being widened at their lower end 17a such that, if the detectors are used, the horizontal reflective surface is increased.
  • the previous embodiment further comprises impact absorbers (bumpers) B6 on the upper part of the peripheric edges of foot 1.
  • the bumpers B6 can be disposed in front of the cross-section change (24), so that the pallet carrier fork will not crash with the bumpers B6 when introducing the fork between the feet 1 of the pallet 2 or, once introduced, when lifting the pallet 2. More specifically, bumpers can be disposed between the change of cross-section (24) and the centre of the length of the foot 1. More specifically, bumpers can be disposed at a height lower than the height of hooks 22. Otherwise, the bumpers B6 could be an obstacle to the coupling between the foot 1 and a pallet 2.
  • the height of the leg bumpers B6 will be chosen from 1 to 2 cm in height and will more preferably be 1.5 cm. As an alternative, it will be chosen that this height corresponds to that which allows the bumper to serve as a support between stacked pallets. Indeed, when stacking the pallets, the lower surface of the feet will rest on the upper edge of the ribs (17) of the feet of the lower pallet. In that situation, the bumpers will also receive pressure above their own pallet, and below the pallet on which their own pallet rests. This will contribute to further increase the support surface between pallets, decreasing the efforts, increasing their useful life.
  • the foot 1 shown in FIGS. 40 and 41 comprises a change of a horizontal cross-section 24 of the foot 1, defining a wedge-shaped section 23 disposed on rear part of feet 1, flushing with the bottom wall B11 of foot 1.
  • the horizontal cross-section of the wedge-shaped section 23 decreases as the height of the wedge-shaped section 23 increases, until reaching a particular length of the horizontal cross-section.
  • the previous embodiment can comprise a plurality of hooks 22 arranged in the upper part of the foot 1 for coupling with a plurality of vertical channels 21 arranged in the surface of the holes H.
  • the coupling between the vertical channels 21 and hooks the 22 has a horizontal gap between 1 and 2 mm.
  • the previous embodiment can comprise detectors arranged underneath the foot and oriented upwards, which is a further aspect of the present invention that facilitates its handling in automatic installations.
  • the previous embodiment can comprise vertical stiffeners 17 in the lower part 11 such that vertical stiffeners through channels CH are formed in the lower part 11, the stiffeners being widened at their lower end 17a such that, if the detectors are used, the horizontal reflective surface is increased.
  • the previous embodiment further comprises impact absorbers (bumpers) B7 on the upper part of the peripheric edges of the foot 1.
  • the bumpers B7 can be disposed in front of the change of cross-section (24), so the pallet carrier fork will not crash with the bumpers B7 when introducing the fork between the feet 1 of the pallet 2 or, once introduced, when lifting the pallet.
  • bumpers can be disposed on the upper part of the front side of feet 1, being disposed at a height lower than the height of hooks 22. Otherwise, the bumpers B6 could be an obstacle to the coupling between the foot 1 and a pallet 2.
  • the height of the leg bumpers will be chosen from 1 to 2 cm in height and will more preferably be 1.5 cm.
  • this height corresponds to that which allows the bumper to serve as a support between stacked pallets. Indeed, when stacking the pallets, the lower surface of the feet will rest on the upper edge of the ribs (17) of the feet of the lower pallet. In that situation, the bumpers will also receive pressure above their own pallet, and below the pallet on which their own pallet rests. This will contribute to further increase the support surface between pallets, decreasing the efforts, increasing their useful life.
  • the previous embodiment can comprise an EX widening which results in the presence of a cavity GWR wherein centering rollers GW can roll.
  • the enlargement EX is provided on the inner side of the foot, so that the width of the foot is increased in order to increase the surface in contact with the centering rollers GW.
  • this widening is limited by the internal distance of the upper section of the foot, to continue guaranteeing that the pallets are nestable, as illustrated in figure 34 .
  • the previous embodiment can further comprise recesses 26 and 27
  • the foot 1 shown in FIG. 42 comprises a change of a horizontal cross-section of the foot 1, defining a wedge-shaped section 23 disposed on rear part of feet 1, flushing with the bottom wall B11 of foot 1.
  • the horizontal cross-section of the wedge-shaped section 23 decreases as the height of the wedge-shaped section 23 increases, until reaching a particular length of the horizontal cross-section.
  • the previous embodiment can comprise a plurality of hooks on the external 22a and internal side 22b of the foot, arranged in the upper part of the feet 1 for coupling with a plurality of vertical channels 21 arranged in the surface of the holes H.
  • This coupling comprises a vertical gap.
  • the vertical gap on the external side 22a of the foot can be smaller than the vertical gap 22b on the internal side, such that the foot can rotate about a longitudinal axis determined by the plurality of hooks of the external side L ⁇ .
  • the previous embodiment further comprises impact absorbers (bumpers) B7 on the upper part of the peripheric edges of foot 1.
  • the bumpers B7 can be disposed in front of the change of cross-section (24), so the pallet carrier fork will not crash with the bumpers B7 when introducing the fork between the feet of the pallet 2 or, once introduced, when lifting the pallet.
  • bumpers can be disposed on the upper part of the front side of feet 1, being disposed at a height lower than the height of hooks 22a, 22b. Otherwise, the bumpers B6 could be an obstacle to the coupling between the foot 1 and a pallet 2.
  • the height of the leg bumpers will be chosen from 1 to 2 cm in height and will more preferably be 1.5 cm.
  • this height corresponds to that which allows the bumper to serve as a support between stacked pallets. Indeed, when stacking the pallets, the lower surface of the feet will rest on the upper edge of the ribs (17) of the feet of the lower pallet. In that situation, the bumpers will also receive pressure above their own pallet, and below the pallet on which their own pallet rests. This will contribute to further increase the support surface between pallets, decreasing the efforts, increasing their useful life.
  • the lateral wall of the previous embodiment comprises a movable part 13, which is displaceable between a hidden position in which it does not protrude from the geometric envelope (See FIG. 4 ), and an extension position in which it protrudes from the geometric envelope (See FIG. 3 ).
  • the shape of the movable part 13 has been optimized. It is appreciated that its shape, is trapezoidal. In this way, impacts or blockages (which would be very damaging) are avoided with the intermittences of the lateral containment fences of the pallets in the pallet circuits (as they are usually not continuous).
  • the movable part 13 is articulated with an axis ⁇ arranged in the lower section of the cavity 14, as shown in FIG. 42 .
  • the movable part 13 can comprise a lower extension 15 which, in the hidden position protrudes from the bottom wall B11, such that, when the foot rests on a bearing surface S, the lower extension 15 is pressed thus pushing the movable part 13 towards the extension position.
  • the lower extension 15 In the hidden position the lower extension 15 is displaced with respect to the vertical projection of the axis ⁇ so that when the foot approaches the ground, the contact with the ground exerts a moment with respect to the axis ⁇ that causes the rotation of the movable part 13 towards the extension position.
  • the movable part can be moved according to a translational movement. That is, instead of rotating, it moves in translation.
  • the displacement is vertical, so that when the pallets P are stacked, the movable part 13 does not constitute an obstacle, but when the pallet P is unstacked, the moving part falls by its own weight.
  • the foot is oblong such that a length and a width are defined, the movable part 13 being placed on a wall placed along the length direction, and can occupy more than 60% of the whole length, as shown in FIG. 42 .
  • the width of the wedge (distance from a lateral side to the opposite lateral side) should be short enough to allow the nesting of the feet of different pallets on top of each other.
  • the dimension of the lateral side in the extension direction 28 of the movable part 13 is such that it does not extend, in the extension direction dimension, beyond the movable part 13 when the movable part 13 is in the extension position.
  • the foot 1 shown in FIG. 43 comprises a change of a horizontal cross-section of the foot 1, defining a wedge-shaped section 23 disposed on rear part of feet 1, flushing with the bottom wall B11 of foot 1.
  • the horizontal cross-section of the wedge-shaped section 23 decreases as the height of the wedge-shaped section 23 increases, until reaching a particular length of the horizontal cross-section.
  • the previous embodiment can comprise a plurality of hooks 22 arranged in the upper part of the feet 1 for coupling with a plurality of vertical channels 21 arranged in the surface of the holes H.
  • the coupling between the vertical channels 21 and hooks the 22 has a horizontal gap between 1 and 2 mm.
  • FIG. 43 illustrates an embodiment in which a lateral wall L11 of foot 1 does not comprise any movable part 13 or any EX widening or extension which defines a cavity GWR.
  • the bottom wall of the wedged-shaped section 23 may be a curved wall in which the exterior end 29 of the curved wall is at a higher position than the section 30 of the curved wall that is in contact with the bottom wall B11 of the feet 1. In this way, the support by at least two rolllers disposed underneath the foot 1 is improved, being further ensured and the feet is lighter.
  • the pallet 2 comprises central and lateral feet 1.
  • the central feet are those which are disposed between two feet of the pallet 2.
  • the lateral feet are those which are closest to the periphery of the pallet 2.
  • the lateral feet (e.g. element 1 in FIG. 41 ) have a bottom wall B11 with a length which can be smaller than the length of the bottom wall B11 of the central feet (e.g. element 1 in FIG. 43 ).
  • the length of the bottom wall B11 of the lateral foot and of the bottom wall B11 of the central foot 1 can be 260.5 cm and 273.5 cm respectively.
  • Another problem identified by the inventors is related to the depth of fitting of the pallet handling forks, in particular when they must enter on the long sides, which is usual in automatic installations, to unstack or disengage them from each other.
  • the fork can enter completely if it is behind the foot. But if the fork LF tries to enter before that surface, it simply bumps on the foot and cannot enter. In short, it is an all-or-nothing situation.
  • a foot as shown in figures 44 to 52 is proposed.
  • the rear surface RS is arranged obliquely with respect to the side of the pallet, for example forming between 60 ° and 70 °.
  • this plane RS is not perpendicular to the medium plane of the foot (vertical plane having the longitudinal direction of the foot/pallet), but forms an angle between 60 ° and 70 °).
  • the forks LF are very displaced towards the back or front of the pallet (remember that they enter from the side) then they will not meet immediately with the foot, but before doing so they will have a penetration course (24.7 - 46.7 -67.74 - 101.7 mm as an example as shown in figures 53 to 56 ) that will allow a sufficient support surface to lift the pallet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
EP18382981.1A 2018-12-21 2018-12-21 Fuss für eine nestbare palette und palette mit mehreren füssen Active EP3670375B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES18382981T ES2905581T3 (es) 2018-12-21 2018-12-21 Pata para palé anidable y palé que comprende una pluralidad de patas
EP18382981.1A EP3670375B1 (de) 2018-12-21 2018-12-21 Fuss für eine nestbare palette und palette mit mehreren füssen
RU2019141131A RU2019141131A (ru) 2018-12-21 2019-12-12 Ножка для штабелируемого поддона
CA3065068A CA3065068A1 (en) 2018-12-21 2019-12-12 Foot for a nestable pallet
MX2019015621A MX2019015621A (es) 2018-12-21 2019-12-19 Pie para un pale anidable.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18382981.1A EP3670375B1 (de) 2018-12-21 2018-12-21 Fuss für eine nestbare palette und palette mit mehreren füssen

Publications (2)

Publication Number Publication Date
EP3670375A1 true EP3670375A1 (de) 2020-06-24
EP3670375B1 EP3670375B1 (de) 2021-10-27

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Application Number Title Priority Date Filing Date
EP18382981.1A Active EP3670375B1 (de) 2018-12-21 2018-12-21 Fuss für eine nestbare palette und palette mit mehreren füssen

Country Status (5)

Country Link
EP (1) EP3670375B1 (de)
CA (1) CA3065068A1 (de)
ES (1) ES2905581T3 (de)
MX (1) MX2019015621A (de)
RU (1) RU2019141131A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021136854A1 (es) * 2020-01-02 2021-07-08 Viola Teres Josep Ramon Pie para un palé anidable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007788A1 (de) * 1970-02-20 1971-08-26 Westform Plastikwerke GmbH, 5256 Hommench Stapelbarer Behalter
DE4109504A1 (de) * 1991-03-22 1992-09-24 Hecker & Krosch Gmbh & Co Kg Stapelbare gitterbox
US20070245932A1 (en) * 2006-04-24 2007-10-25 Worthington Steelpac Systems Metal pallet
US20100218705A1 (en) * 2003-10-14 2010-09-02 Ayyakannu Mani Pallets
US20120260462A1 (en) * 2009-10-13 2012-10-18 Sparsors Plast KB Pallet foot, a pallet and a box provided with feet and also a method for attaching a pallet foot to a platform
EP2767482A1 (de) * 2011-10-14 2014-08-20 Viola Teres, Josep Ramon Palettenbasis und palette mit dieser basis

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007788A1 (de) * 1970-02-20 1971-08-26 Westform Plastikwerke GmbH, 5256 Hommench Stapelbarer Behalter
DE4109504A1 (de) * 1991-03-22 1992-09-24 Hecker & Krosch Gmbh & Co Kg Stapelbare gitterbox
US20100218705A1 (en) * 2003-10-14 2010-09-02 Ayyakannu Mani Pallets
US20070245932A1 (en) * 2006-04-24 2007-10-25 Worthington Steelpac Systems Metal pallet
US20120260462A1 (en) * 2009-10-13 2012-10-18 Sparsors Plast KB Pallet foot, a pallet and a box provided with feet and also a method for attaching a pallet foot to a platform
EP2767482A1 (de) * 2011-10-14 2014-08-20 Viola Teres, Josep Ramon Palettenbasis und palette mit dieser basis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021136854A1 (es) * 2020-01-02 2021-07-08 Viola Teres Josep Ramon Pie para un palé anidable

Also Published As

Publication number Publication date
ES2905581T3 (es) 2022-04-11
RU2019141131A (ru) 2021-06-15
MX2019015621A (es) 2020-08-03
EP3670375B1 (de) 2021-10-27
CA3065068A1 (en) 2020-06-21

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