US20110162563A1 - Snap-together pallet - Google Patents
Snap-together pallet Download PDFInfo
- Publication number
- US20110162563A1 US20110162563A1 US13/047,989 US201113047989A US2011162563A1 US 20110162563 A1 US20110162563 A1 US 20110162563A1 US 201113047989 A US201113047989 A US 201113047989A US 2011162563 A1 US2011162563 A1 US 2011162563A1
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- Prior art keywords
- pallet
- deck
- mid
- recited
- column
- 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.)
- Abandoned
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Classifications
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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
- B65D19/0012—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
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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
-
- 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
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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
- 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
- B65D2519/00084—Materials for the non-integral separating spacer
- B65D2519/00104—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
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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
- 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
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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
- 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
- B65D2519/00308—Overall construction of the load supporting surface grid type, e.g. perforated plate
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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
- 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
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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
- 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
- B65D2519/00348—Overall construction of the base surface shape of the contact surface of the base contact surface of other form
-
- 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
- B65D2519/00363—Overall construction of the base surface grid type, e.g. perforated plate
-
- 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
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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
- 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
- B65D2519/00412—Integral, e.g. ribs on the base surface
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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
- 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
- B65D2519/00432—Non-integral, e.g. inserts
- B65D2519/00437—Non-integral, e.g. inserts 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
Definitions
- the present invention relates generally to pallets and more particularly to a snap-together pallet.
- Pallets are often used to store and transport goods. Pallets maintain the goods at a distance above the floor such that they can readily be lifted and moved by a forklift. Plastic pallets are lighter and more durable than wooden pallets.
- Pallets with some snap-together assembly have been developed. Two such pallets, developed by the assignee of the present application, are disclosed in U.S. Pat. Nos. 6,006,677 and 6,622,641. Those pallets include a top deck having a plurality of ribs extending downward. Snap-tabs connect a plurality of columns to the top deck. Ribs in the top deck provide strength and rigidity to the top deck.
- a pallet according to the present invention provides increased strength to a top deck that is snap-fit to columns of a base.
- the pallet generally includes a top deck, a mid-top member and a base.
- the top deck has a plurality of ribs extending downwardly and a plurality of column-receiving recesses formed on the underside thereof.
- the base includes a plurality of columns projecting substantially vertically and received within the recesses of the top deck.
- the columns define fork-receiving regions therebetween. Snap-tabs secure the columns to the deck.
- a generally planar mid-top member has a plurality of openings corresponding to the plurality of columns.
- the mid-top member is sandwiched between the ribs of the top deck and shoulders formed on the outer periphery of the columns, which partially extend into the openings of the mid-top member.
- the mid-top member is secured directly to the plurality of ribs on the deck. In another embodiment, the mid-top member is first snap-fit to the top deck. The assembled mid-top member and top deck are then assembled to the base via snap-fit connections.
- Pallets according to the present invention provide top decks that are stronger and more rigid.
- the pallets are also easier to assemble than previous pallets.
- FIG. 1 is a perspective view of a pallet according to a first embodiment of the present invention.
- FIG. 2 is an exploded view of the pallet of FIG. 1 .
- FIG. 3 is a bottom perspective view of the top deck of the pallet of FIG. 1 .
- FIG. 4 is a bottom perspective view of the top deck of FIG. 3 connected to the mid-top member.
- FIG. 5 is a perspective view of the base of the pallet of FIG. 1 .
- FIG. 6 shows the alignment of the mid-top member on the base of FIG. 5 .
- FIG. 7 a is an exploded sectional view taken along lines 7 - 7 of FIG. 1 .
- FIG. 7 b is an assembled view similar to FIG. 7 a.
- FIG. 8 is an enlarged view of the area around the center column of FIG. 7 b.
- FIG. 9 a is an enlarged view of the Area A of FIG. 7 b prior to attachment of the top deck to the mid-top member.
- FIG. 9 b is the area of FIG. 9 a after attachment of the top deck to the mid-top member.
- FIG. 10 is a perspective view of a pallet according to a second embodiment of the present invention.
- FIG. 11 is an exploded view of the pallet of FIG. 10 .
- FIG. 12 is a bottom perspective view of the top deck connected to the mid-top member and exploded from the base of FIG. 10 .
- FIG. 13 is an enlarged perspective bottom view of a portion of the top deck of FIG. 10 .
- FIG. 14 is a bottom perspective view of the mid-top member of FIG. 10 .
- FIG. 15 is a sectional view through the mid-top member and top deck of FIG. 10 .
- FIG. 16 is bottom perspective view of a diagonal section through the assembled pallet of FIG. 10 .
- a pallet 10 according to a first embodiment of the present invention includes a top deck 12 having a generally planar upper member 14 for supporting goods at a distance above the floor.
- the top deck 12 is secured to a base 18 having a plurality of generally vertical columns 20 connected by runners 22 and defining fork-receiving areas.
- FIG. 2 is an exploded view of the pallet 10 .
- a mid-top member 30 is sandwiched between the top deck 12 and the base 18 .
- the mid-top member 30 is a generally planar, rigid, synthetic resin plate having a plurality of openings 34 , including a center opening 34 a, side openings 34 b and corner openings 34 c.
- the openings 34 correspond to and are aligned with the columns 20 of the base 18 .
- the columns 20 each include an upper portion 40 having a reduced outer dimension, thereby forming a shoulder 42 adjacent the upper portion 40 .
- FIG. 3 is a bottom perspective view of the top deck 12 .
- the underside of the top deck 12 includes a plurality of intersecting, transverse ribs 46 extending downward. At each intersection of the ribs 46 , the ribs 46 are slightly taller to form downward projections 48 .
- the top deck 12 includes a plurality of column-receiving recesses 50 .
- a plurality of interior ribs 52 and snap-tabs 54 extend downward within each recess 50 .
- Short channel ribs 56 between the ribs 46 and the interior ribs 52 of each recess 50 define a channel 58 .
- a lip 60 extending around the periphery of the top deck 12 is taller when adjacent each recess 50 (other than the center recess 50 ) and is spaced from the interior ribs 52 and snap-tabs 54 .
- FIG. 4 is a bottom perspective view of the mid-top member 30 connected to the top deck 12 . As shown, the openings 34 in the mid-top member 30 are aligned with the recesses 50 in the top deck 12 , such that the recesses 50 , channel 58 , short channel ribs 56 , interior ribs 52 and snap-tabs 54 are accessible.
- FIG. 5 is a perspective view of the base 18 .
- Each column 20 includes the upper portion 40 of reduced outer dimension to form the shoulder 42 .
- a flange 64 extends radially inward from the top of the upper portion 40 into a hollow of the column 20 .
- FIG. 6 is a perspective view of the base 18 with the mid-top member 30 aligned on the base 18 .
- the columns 20 are received in the openings 34 of the mid-top member 30 .
- the mid-top member 30 rests on the shoulders 42 of the columns 20 of the base 18 , such that the upper portions 40 protrude through the openings 34 in the mid-top member 30 .
- FIGS. 7 a and 7 b are sectional exploded and assembled views, respectively, of the pallet taken along line 7 - 7 of FIG. 1 .
- the upper portions 40 of the columns 20 are received in the openings 34 in the mid-top member 30 .
- the top deck 12 is secured to the base 18 via the connection of the snap-tabs 54 to the columns 20 .
- the mid-top member 30 together with the ribs 46 and the planar upper member 14 , forms box beam sections in the top deck 12 .
- the box beam sections provide increased strength and rigidity to the top deck 12 .
- the lip 60 rests on the shoulder 42 adjacent each peripheral column 20 .
- FIG. 8 An enlarged view of the area around the center column 20 is shown in FIG. 8 .
- Connection to the other columns 54 is similar.
- the mid-top member 30 rests on the shoulders 42 of the columns 20 , such that the upper portion 40 is received within the opening 34 of the mid-top member 30 .
- the ribs 46 of the top deck 12 abut the upper surface of the mid-top member 30 .
- the top deck 12 is secured to the base via the snap-tabs 54 in the columns 20 .
- the columns 20 are inserted into the channels 58 of the recesses 50 on the top deck 12 as the snap-tabs 54 and interior ribs 52 are inserted into the columns 20 .
- the sloped portion 70 of each snap-tab 54 initially abuts the flange 64 of the column 20 .
- the snap-tab 54 Upon further insertion, the snap-tab 54 is deformed inwardly until it snaps past the flange 64 and returns to its undeformed position, with the flange 64 secured above the shoulder 72 of the snap-tab 54 , thereby retaining the top deck 12 and the mid-top member 30 to the base 18 .
- the mid-top member 30 is secured to the top deck 12 prior to connection of the top deck 12 to the base 18 in the manner shown in FIGS. 9 a - 9 b.
- FIG. 9 a is an enlarged view of the Area A of FIG. 7 b , prior to connection of one of the ribs 46 to the mid-top member 30 .
- the mid-top member 30 is vibration welded to the ribs 46 of the top deck 12 . During the vibration welding process, the projections 48 of the ribs 46 initially are brought into contact with the mid-top member 30 .
- each projection 48 and a portion of the mid-top member 30 in contact with each projection 48 are melted during the vibration welding process to connect the mid-top member 30 to the top deck 12 with a weld 73 as shown in FIG. 9 b , at which time there will still be a small gap between the ribs 46 the mid-top member 30 at areas other than the projection 48 , as shown.
- the top deck 12 and attached mid-top member 30 are then attached to base 18 in the snap-fit manner described above.
- the pallet 10 could be made within the scope of the present invention.
- some or all of the snap-tabs 54 could be switched to the base 18 .
- the ribs 46 could be molded with the mid-top member 30 instead of, or in addition to, being molded with the top deck 12 .
- FIGS. 10-16 A pallet 110 according to a second embodiment of the present invention is shown in FIGS. 10-16 .
- Components of the pallet 110 that are similar to the pallet 10 of FIG. 1-9 are pre-appended with the numeral “ 1 ” and unless shown or described differently, the description of those components from above is hereby incorporated by reference.
- the pallet 110 includes a top deck 112 having a generally planar upper member 114 for supporting goods at a distance above the floor.
- the top deck 112 is secured to a base 118 having a plurality of columns 120 connected by runners 122 .
- FIG. 11 is an exploded view of the pallet 110 .
- a mid-top member 130 is sandwiched between the top deck 112 and the base 118 .
- the mid-top member 130 has a plurality of openings 134 , including a center opening 134 a, side openings 134 b and corner openings 134 c.
- the openings 134 correspond to and are aligned with the columns 120 of the base 118 .
- the columns 120 each include an upper portion 140 having a reduced outer dimension, thereby forming a shoulder 142 adjacent the upper portion 140 .
- FIG. 12 is a bottom perspective partially exploded view of the top deck 112 and base 118 , with the mid-top member 130 mounted to the top deck 112 .
- the top deck 112 includes a plurality of column-receiving recesses 150 .
- a plurality of interior ribs 152 and snap-tabs 154 extend downward within each recess 150 .
- Short channel ribs 156 between the ribs 146 and the interior ribs 152 of each recess 150 define a channel 158 .
- FIG. 13 is an enlarged perspective bottom view of a portion of the top deck 112 .
- the underside of the top deck 112 includes a plurality of intersecting, transverse ribs 146 extending downward. At each intersection of the ribs 146 , the ribs 146 are slightly taller to form downward projections 148 .
- a plurality (one shown) of snap-tabs 162 extend downward from the top deck 112 slightly further than the ribs 146 , for connecting the top deck 112 to the mid-top member 130 .
- the snap-tabs 162 on the top deck 112 are aligned with, and connect to, lips 174 on the mid-top member 130 , one of which is shown in FIG. 14 .
- FIG. 14 is a bottom perspective view of the mid-top member 130 .
- Recesses 176 at the intersections of the ribs 178 align with, and receive, the projections 148 on the top deck 112 , as shown in FIG. 15 .
- FIG. 15 is a sectional view through the mid-top member 130 connected to the top deck 112 .
- the projections 148 of the top deck 112 are received within corresponding recesses 176 in the mid-top member 130 in order to laterally align the top deck 112 and mid-top member 130 .
- the ribs 178 of the mid-top member 130 are aligned with and connected to the ribs 146 of the top deck 112 .
- the snap-tabs 162 of the top deck 112 snap into engagement with the lips 174 of the mid-top member 130 to retain the top deck 112 to the mid-top member 130 .
- FIG. 16 is bottom perspective view of a diagonal section through the assembled pallet 110 of FIG. 10 .
- the upper portion 140 of each column 120 is received in the channel 158 of one of the recesses 150 to abut the short channel ribs 156 and is also received within one of the openings 134 of the mid-top member 130 .
- the mid-top member 130 is disposed on the shoulder portions 142 of the columns 120 . Lips 164 on the columns 120 are snap-fittingly connected to the snap-tabs 154 on the top deck 112 .
- the pallet 110 could be made within the scope of the present invention.
- some or all of the snap-tabs 154 could be switched to the base 118
- the locations of some or all of the snap-tabs 162 could be switched to the mid-top member 130 .
- top deck 12 , 112 , mid-top member 30 , 130 and base 18 , 118 are each separately molded preferably from polypropylene or other suitable material, such as HDPE, glass-filled nylon or other suitable materials via an injection-molding or other suitable process.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pallets (AREA)
- Ladders (AREA)
- Washing And Drying Of Tableware (AREA)
Abstract
A pallet for use with a fork lift includes a top deck, a mid-top member and a base. The top deck has a plurality of ribs extending downwardly and a plurality of column-receiving recesses formed on the underside thereof. The base includes a plurality of columns projecting substantially vertically and received within the recesses of the top deck. Snap-tabs secure the columns to the deck. A generally planar mid-top member is secured to the plurality of ribs on the deck and has a plurality of openings into which are received the plurality of columns. The mid-top member is sandwiched between the ribs of the top deck and shoulders formed on the outer periphery of the columns.
Description
- This is a continuation of U.S. application Ser. No. 10/903,661 filed on Jul. 29, 2004.
- The present invention relates generally to pallets and more particularly to a snap-together pallet.
- Pallets are often used to store and transport goods. Pallets maintain the goods at a distance above the floor such that they can readily be lifted and moved by a forklift. Plastic pallets are lighter and more durable than wooden pallets.
- Many plastic pallets have separately molded upper and lower decks separated by columns that define the fork-receiving areas. The upper and lower decks and the columns are molded separately and subsequently connected via adhesive, hot plate welding, heat stakes, or similar methods. These connection processes can be time-consuming and raise the assembly cost.
- Pallets with some snap-together assembly have been developed. Two such pallets, developed by the assignee of the present application, are disclosed in U.S. Pat. Nos. 6,006,677 and 6,622,641. Those pallets include a top deck having a plurality of ribs extending downward. Snap-tabs connect a plurality of columns to the top deck. Ribs in the top deck provide strength and rigidity to the top deck.
- A pallet according to the present invention provides increased strength to a top deck that is snap-fit to columns of a base. The pallet generally includes a top deck, a mid-top member and a base. The top deck has a plurality of ribs extending downwardly and a plurality of column-receiving recesses formed on the underside thereof.
- The base includes a plurality of columns projecting substantially vertically and received within the recesses of the top deck. The columns define fork-receiving regions therebetween. Snap-tabs secure the columns to the deck.
- A generally planar mid-top member has a plurality of openings corresponding to the plurality of columns. The mid-top member is sandwiched between the ribs of the top deck and shoulders formed on the outer periphery of the columns, which partially extend into the openings of the mid-top member.
- In one embodiment, the mid-top member is secured directly to the plurality of ribs on the deck. In another embodiment, the mid-top member is first snap-fit to the top deck. The assembled mid-top member and top deck are then assembled to the base via snap-fit connections.
- Pallets according to the present invention provide top decks that are stronger and more rigid. The pallets are also easier to assemble than previous pallets.
- Other advantages of the present invention can be understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:
-
FIG. 1 is a perspective view of a pallet according to a first embodiment of the present invention. -
FIG. 2 is an exploded view of the pallet ofFIG. 1 . -
FIG. 3 is a bottom perspective view of the top deck of the pallet ofFIG. 1 . -
FIG. 4 is a bottom perspective view of the top deck ofFIG. 3 connected to the mid-top member. -
FIG. 5 is a perspective view of the base of the pallet ofFIG. 1 . -
FIG. 6 shows the alignment of the mid-top member on the base ofFIG. 5 . -
FIG. 7 a is an exploded sectional view taken along lines 7-7 ofFIG. 1 . -
FIG. 7 b is an assembled view similar toFIG. 7 a. -
FIG. 8 is an enlarged view of the area around the center column ofFIG. 7 b. -
FIG. 9 a is an enlarged view of the Area A ofFIG. 7 b prior to attachment of the top deck to the mid-top member. -
FIG. 9 b is the area ofFIG. 9 a after attachment of the top deck to the mid-top member. -
FIG. 10 is a perspective view of a pallet according to a second embodiment of the present invention. -
FIG. 11 is an exploded view of the pallet ofFIG. 10 . -
FIG. 12 is a bottom perspective view of the top deck connected to the mid-top member and exploded from the base ofFIG. 10 . -
FIG. 13 is an enlarged perspective bottom view of a portion of the top deck ofFIG. 10 . -
FIG. 14 is a bottom perspective view of the mid-top member ofFIG. 10 . -
FIG. 15 is a sectional view through the mid-top member and top deck ofFIG. 10 . -
FIG. 16 is bottom perspective view of a diagonal section through the assembled pallet ofFIG. 10 . - A
pallet 10 according to a first embodiment of the present invention includes atop deck 12 having a generally planarupper member 14 for supporting goods at a distance above the floor. Thetop deck 12 is secured to abase 18 having a plurality of generallyvertical columns 20 connected byrunners 22 and defining fork-receiving areas. -
FIG. 2 is an exploded view of thepallet 10. Amid-top member 30 is sandwiched between thetop deck 12 and thebase 18. Themid-top member 30 is a generally planar, rigid, synthetic resin plate having a plurality of openings 34, including a center opening 34 a,side openings 34 b andcorner openings 34 c. The openings 34 correspond to and are aligned with thecolumns 20 of thebase 18. Thecolumns 20 each include anupper portion 40 having a reduced outer dimension, thereby forming ashoulder 42 adjacent theupper portion 40. -
FIG. 3 is a bottom perspective view of thetop deck 12. The underside of thetop deck 12 includes a plurality of intersecting,transverse ribs 46 extending downward. At each intersection of theribs 46, theribs 46 are slightly taller to form downwardprojections 48. Thetop deck 12 includes a plurality of column-receivingrecesses 50. A plurality ofinterior ribs 52 and snap-tabs 54 extend downward within eachrecess 50.Short channel ribs 56 between theribs 46 and theinterior ribs 52 of eachrecess 50 define achannel 58. Alip 60 extending around the periphery of thetop deck 12 is taller when adjacent each recess 50 (other than the center recess 50) and is spaced from theinterior ribs 52 and snap-tabs 54. -
FIG. 4 is a bottom perspective view of themid-top member 30 connected to thetop deck 12. As shown, the openings 34 in themid-top member 30 are aligned with therecesses 50 in thetop deck 12, such that therecesses 50,channel 58,short channel ribs 56,interior ribs 52 and snap-tabs 54 are accessible. -
FIG. 5 is a perspective view of thebase 18. Eachcolumn 20 includes theupper portion 40 of reduced outer dimension to form theshoulder 42. Aflange 64 extends radially inward from the top of theupper portion 40 into a hollow of thecolumn 20. -
FIG. 6 is a perspective view of the base 18 with themid-top member 30 aligned on thebase 18. Thecolumns 20 are received in the openings 34 of themid-top member 30. Themid-top member 30 rests on theshoulders 42 of thecolumns 20 of thebase 18, such that theupper portions 40 protrude through the openings 34 in themid-top member 30. -
FIGS. 7 a and 7 b are sectional exploded and assembled views, respectively, of the pallet taken along line 7-7 ofFIG. 1 . Theupper portions 40 of thecolumns 20 are received in the openings 34 in themid-top member 30. Thetop deck 12 is secured to thebase 18 via the connection of the snap-tabs 54 to thecolumns 20. Themid-top member 30, together with theribs 46 and the planarupper member 14, forms box beam sections in thetop deck 12. The box beam sections provide increased strength and rigidity to thetop deck 12. Thelip 60 rests on theshoulder 42 adjacent eachperipheral column 20. - An enlarged view of the area around the
center column 20 is shown inFIG. 8 . Connection to theother columns 54 is similar. When assembled, themid-top member 30 rests on theshoulders 42 of thecolumns 20, such that theupper portion 40 is received within the opening 34 of themid-top member 30. Theribs 46 of thetop deck 12 abut the upper surface of themid-top member 30. Thetop deck 12 is secured to the base via the snap-tabs 54 in thecolumns 20. Thecolumns 20 are inserted into thechannels 58 of therecesses 50 on thetop deck 12 as the snap-tabs 54 andinterior ribs 52 are inserted into thecolumns 20. The slopedportion 70 of each snap-tab 54 initially abuts theflange 64 of thecolumn 20. Upon further insertion, the snap-tab 54 is deformed inwardly until it snaps past theflange 64 and returns to its undeformed position, with theflange 64 secured above theshoulder 72 of the snap-tab 54, thereby retaining thetop deck 12 and themid-top member 30 to thebase 18. - In the embodiment shown, the
mid-top member 30 is secured to thetop deck 12 prior to connection of thetop deck 12 to the base 18 in the manner shown inFIGS. 9 a-9 b.FIG. 9 a is an enlarged view of the Area A ofFIG. 7 b, prior to connection of one of theribs 46 to themid-top member 30. In this embodiment, themid-top member 30 is vibration welded to theribs 46 of thetop deck 12. During the vibration welding process, theprojections 48 of theribs 46 initially are brought into contact with themid-top member 30. Most of eachprojection 48 and a portion of themid-top member 30 in contact with eachprojection 48 are melted during the vibration welding process to connect themid-top member 30 to thetop deck 12 with aweld 73 as shown inFIG. 9 b, at which time there will still be a small gap between theribs 46 themid-top member 30 at areas other than theprojection 48, as shown. Thetop deck 12 and attachedmid-top member 30 are then attached tobase 18 in the snap-fit manner described above. - Variations on the
pallet 10 could be made within the scope of the present invention. For example, some or all of the snap-tabs 54 could be switched to thebase 18. Theribs 46 could be molded with themid-top member 30 instead of, or in addition to, being molded with thetop deck 12. - A
pallet 110 according to a second embodiment of the present invention is shown inFIGS. 10-16 . Components of thepallet 110 that are similar to thepallet 10 ofFIG. 1-9 are pre-appended with the numeral “1” and unless shown or described differently, the description of those components from above is hereby incorporated by reference. Thepallet 110 includes atop deck 112 having a generally planarupper member 114 for supporting goods at a distance above the floor. Thetop deck 112 is secured to a base 118 having a plurality ofcolumns 120 connected byrunners 122. -
FIG. 11 is an exploded view of thepallet 110. Amid-top member 130 is sandwiched between thetop deck 112 and thebase 118. Themid-top member 130 has a plurality of openings 134, including a center opening 134 a, side openings 134 b andcorner openings 134 c. The openings 134 correspond to and are aligned with thecolumns 120 of thebase 118. Thecolumns 120 each include anupper portion 140 having a reduced outer dimension, thereby forming ashoulder 142 adjacent theupper portion 140. -
FIG. 12 is a bottom perspective partially exploded view of thetop deck 112 andbase 118, with themid-top member 130 mounted to thetop deck 112. Thetop deck 112 includes a plurality of column-receivingrecesses 150. A plurality ofinterior ribs 152 and snap-tabs 154 extend downward within eachrecess 150.Short channel ribs 156 between theribs 146 and theinterior ribs 152 of eachrecess 150 define achannel 158. -
FIG. 13 is an enlarged perspective bottom view of a portion of thetop deck 112. The underside of thetop deck 112 includes a plurality of intersecting,transverse ribs 146 extending downward. At each intersection of theribs 146, theribs 146 are slightly taller to formdownward projections 148. A plurality (one shown) of snap-tabs 162 extend downward from thetop deck 112 slightly further than theribs 146, for connecting thetop deck 112 to themid-top member 130. The snap-tabs 162 on thetop deck 112 are aligned with, and connect to,lips 174 on themid-top member 130, one of which is shown inFIG. 14 . -
FIG. 14 is a bottom perspective view of themid-top member 130.Recesses 176 at the intersections of theribs 178 align with, and receive, theprojections 148 on thetop deck 112, as shown inFIG. 15 . -
FIG. 15 is a sectional view through themid-top member 130 connected to thetop deck 112. Theprojections 148 of thetop deck 112 are received within correspondingrecesses 176 in themid-top member 130 in order to laterally align thetop deck 112 andmid-top member 130. Theribs 178 of themid-top member 130 are aligned with and connected to theribs 146 of thetop deck 112. The snap-tabs 162 of thetop deck 112 snap into engagement with thelips 174 of themid-top member 130 to retain thetop deck 112 to themid-top member 130. - The
top deck 112 andmid-top member 130 are then snap-fit assembled to the base 118 as shown inFIG. 16 .FIG. 16 is bottom perspective view of a diagonal section through the assembledpallet 110 ofFIG. 10 . As shown, theupper portion 140 of eachcolumn 120 is received in thechannel 158 of one of therecesses 150 to abut theshort channel ribs 156 and is also received within one of the openings 134 of themid-top member 130. Themid-top member 130 is disposed on theshoulder portions 142 of thecolumns 120.Lips 164 on thecolumns 120 are snap-fittingly connected to the snap-tabs 154 on thetop deck 112. - Variations on the
pallet 110 could be made within the scope of the present invention. For example, some or all of the snap-tabs 154 could be switched to the base 118 Likewise, the locations of some or all of the snap-tabs 162 could be switched to themid-top member 130. - In both embodiments, the
top deck mid-top member base - While embodiments of the invention have been illustrated and described, it is not intended that these embodiments illustrate and describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention.
Claims (26)
1. A pallet comprising:
a deck;
a column; and
a generally planar member having an opening through which the column is received, wherein the generally planar member is spaced inwardly from a portion of a perimeter of the deck, and at least a portion of the deck directly contacts the generally planar member.
2. The pallet as recited in claim 1 , wherein the deck has a generally planar upper surface.
3. The pallet as recited in claim 1 , wherein the column is connected to the deck.
4. The pallet as recited in claim 1 , wherein the generally planar member includes an opening, and the column is received in the opening.
5. The pallet as recited in claim 1 , wherein the column is one of a plurality of columns.
6. The pallet as recited in claim 5 , wherein the generally planar member includes a plurality of openings, and each of the plurality of columns is received in one of the plurality of openings.
7. The pallet as recited in claim 5 , wherein the pallet is substantially rectangular, and the plurality of columns includes a central column located in a center of the pallet, a corner column located in each corner of the pallet, and a side column located between two corner columns.
8. The pallet as recited in claim 1 , wherein the column includes an end and an opposing end, and the end of the column has a first cross-sectional area and the opposing end of the column has a second cross-sectional area, and the first cross-sectional area is greater than the second cross-sectional area.
9. The pallet as recited in claim 1 , wherein the column includes an end and an opposing end, wherein the end and the opposing end are located on opposing sides of a plane defined by the generally planar member.
10. The pallet as recited in claim 1 , wherein the generally planar member circumscribes the column.
11. The pallet as recited in claim 1 , wherein an upper end of the column protrudes through the generally planar member and is connected to the deck.
12. The pallet as recited in claim 1 , wherein the column is hollow.
13. The pallet as recited in claim 11 , wherein the generally planar member is a single, integrally molded, unitary construction.
14. The pallet as recited in claim 1 , wherein the generally planar member is vibration welded to the deck.
15. The pallet as recited in claim 1 , wherein the deck includes a plurality of ribs that connect the generally planar member and the deck.
16. The pallet as recited in claim 15 , wherein the generally planar member is vibration welded to the plurality of ribs of the deck.
17. The pallet as recited in claim 15 , wherein the plurality of ribs are integral with the deck.
18. The pallet as recited in claim 15 , wherein the plurality of ribs extend downwardly from the deck.
19. The pallet as recited in claim 15 , wherein one of the plurality of ribs intersects another of the plurality of ribs at an intersection, and the intersection defines a downward projection.
20. A pallet comprising:
a deck including a generally planar upper member and a plurality of ribs extending downward from the upper member;
a generally planar mid-top member connected to the plurality of ribs, the mid-top member including a plurality of openings therethrough, wherein a perimeter of the mid-top member is spaced inwardly from a perimeter of the deck; and
a plurality of columns extending downward from the deck through the plurality of openings in the mid-top member.
21. The pallet of claim 20 wherein the plurality of columns include a center column, a plurality of side columns and a plurality of corner columns.
22. The pallet of claim 21 wherein the plurality of openings through the mid-top member include a center opening through which the center column protrudes such that the mid-top member completely circumscribes the center column.
23. The pallet of claim 22 wherein the plurality of openings through the mid-top member include a plurality of side openings through which the side columns protrude, wherein the mid-top member does not completely circumscribe the side columns.
24. The pallet of claim 22 wherein the plurality of openings through the mid-top member include a plurality of corner openings through which the corner columns protrude, wherein the mid-top member does not completely circumscribe the corner columns.
25. The pallet of claim 20 wherein the deck includes a plurality of perimeter ribs extending downward from a perimeter of the upper member, wherein the mid-top member does not connect to the perimeter ribs.
26. The pallet of claim 25 wherein the plurality of perimeter ribs are generally transverse to the perimeter of the upper member and are tapered toward the perimeter of the upper member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US13/047,989 US20110162563A1 (en) | 2004-07-29 | 2011-03-15 | Snap-together pallet |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US10/903,661 US7921784B2 (en) | 2004-07-29 | 2004-07-29 | Snap-together pallet |
US13/047,989 US20110162563A1 (en) | 2004-07-29 | 2011-03-15 | Snap-together pallet |
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US10/903,661 Continuation US7921784B2 (en) | 2004-07-29 | 2004-07-29 | Snap-together pallet |
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US10118731B2 (en) | 2015-06-08 | 2018-11-06 | Rehrig Pacific Company | Pallet assembly |
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MX2018003216A (en) * | 2018-03-14 | 2019-09-16 | Gerardo Tornel Leanos | Loading pallet having a support frame and interchangeable deck. |
US11104479B2 (en) * | 2018-11-13 | 2021-08-31 | Chep Technology Pty Limited | Stackable half-size plastic pallet |
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US20050193929A1 (en) * | 2004-03-03 | 2005-09-08 | Ingham Terry L. | SMC pallet |
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US10118731B2 (en) | 2015-06-08 | 2018-11-06 | Rehrig Pacific Company | Pallet assembly |
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US11305913B2 (en) | 2018-05-31 | 2022-04-19 | Chep Technology Pty Limited | Repairable plastic pallet with carvings in the top deck and associated methods |
US11787598B2 (en) | 2018-05-31 | 2023-10-17 | Chep Technology Pty Limited | Repairable plastic pallet with removable support blocks and associated methods |
USD950243S1 (en) * | 2020-05-27 | 2022-05-03 | Michael Rickabaugh | Base of shipping container |
Also Published As
Publication number | Publication date |
---|---|
MX2007000933A (en) | 2007-04-13 |
WO2006014857A1 (en) | 2006-02-09 |
GB2430662B (en) | 2008-09-03 |
GB2430662A (en) | 2007-04-04 |
AU2005269576A1 (en) | 2006-02-09 |
CA2569205C (en) | 2013-04-02 |
US20060032413A1 (en) | 2006-02-16 |
CA2569205A1 (en) | 2006-02-09 |
GB0625948D0 (en) | 2007-02-07 |
AU2005269576B2 (en) | 2012-02-02 |
NZ588090A (en) | 2012-04-27 |
NZ552364A (en) | 2010-10-29 |
US7921784B2 (en) | 2011-04-12 |
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