|Publication number||US3685463 A|
|Publication date||Aug 22, 1972|
|Filing date||Jan 18, 1971|
|Priority date||Jan 18, 1971|
|Publication number||US 3685463 A, US 3685463A, US-A-3685463, US3685463 A, US3685463A|
|Inventors||William J Francis|
|Original Assignee||Packaging Specialties Inc|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (54), Classifications (18)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent Francis [451 Aug. 22, 1972 PALLET 2,706,099 4/1965 Whalley ...l( )8/53  lnventorz J. MCharlotte, N.C. Primary E her-Bobby R. y  Assignee: Packaging. Specialties, Inc., Char- Assistant Examiner-Darrell Marquette lotte, N.C. Attorney-Paxton, Bell, Seltzer, Park & Gibson  Filed: Jan. 18, i971  ABSTRACT ] Appl' A lightweight, inexpensive pallet for supporting a palf letized load and which may be readily'assembled and  US. Cl 4.108156 disassembled to reduce age' p ei'lhe'pallet com-  Int. Cl... ..B65d 19/16 prises s including three intsrsonnscted P 58 'Field oiSe'arch ..l08/5l, s3, 56 members, and a plurality of s tel-support the k above ground level. The lower'two panel members inmnms clu'de a number of aligned cut-outs for releasably  Re! cued receiving and mounting the legs such" that the pallet UNITED STATES PATENTS may be knocked-down and the legs stored or 2,953,339 9/1960 Roshon ..l08/56 sepamely 3,407,758 10/1968 Simkins ..108/5l recumnmmn PATENTED M1222 1912 3.685463 sum 2 or 2 i 3 Iv INVENTOR: LUAM 3. FRANCLS mm /gmwqw ATTORNEYS PALLET The present invention relates to a lightweight pallet for use in supporting various palletized products during shipment or storage. More particularly, the invention relates to a lightweight, relatively inexpensive pallet, which can be readily assembled and disassembled to thereby facilitate shipment and reuse of the same.
Pallets have long been utilized to provide a convenient platform for storing various manufactured products and for facilitating the transport of the same by a fork lift truck. Typically, pallets have been constructed from heavy oak planking, and are thus expensive to produce, and heavy and cumbersome to handle. In addition, the weight and size of such pallets substantially increase the shipping cost of the products, and they require extensive storage areas, both at the shipping and receiving facility.
Numerous attempts have-been made to alleviate the recognized disadvantages of wood pallets, but none of the proposed new designs have met all of the desired requirements for a satisfactory pallet. For example, palletshave recently been fabricated from foamed polystyrene which is molded directly to a reinforcing cover. While these pallets are relatively light in weight, they are somewhat expensive, and they still require a great deal of storage area..- Another pallet design is shown in the U.S. Pat. to Whalley, No. 2,706,099,
wherein a number of plastic legs having a flanged top are joined to a deck which comprises'a pair of joined corrugated paper sheets. The lower sheet overlies the leg flange to permanently secure the leg to the deck. While this latter type pallet is an obvious improvement over the wood pallet, it'cannot be disassembled, and thus it occupies a great deal of space during shipment and storage.
It is accordingly an object of the present invention to provide a pallet which is lightin weight, relatively inexpensive to manufacture, sufficiently strong to support normal pallet loads, and which may be readily assembled and disassembled to reduce storage space.
Additionally, it is an object of the present invention to provide a pallet which can be shipped in disassembled form to thereby minimize shipping costs, and to facilitate return to the shipper for reassembly and reuse.
These and other objects and advantages of the present invention are achieved in the embodiments illustrated herein by the provision of a pallet which comprises a substantially planar deck for supporting the palletized load, support means including a plurality of legs projecting perpendicularly from the undersurface of the deck for supporting the deck a predetermined distance above ground level, and means for releasably securing the legs to the deck for quick and easy assembly and disassembly. In the illustrated embodiment, the legs are secured to the deck by a structure which includes a flange carried by each leg and a cavity adapted to receive the flange of each leg positioned in the undersurface of the deck.
Some of the objects of the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which FIG. 1 is a schematic representation of a fork lift truck shown lifting a palletized load and utilizing a pallet of the present invention;
FIG. 2 is a perspective view of the undersurface of a pallet of the present invention;
FIG. 3 is an exploded perspective view of the pallet shown in FIG. 2;
FIG. 4 is a fragmentary sectional side view illustrating one leg of the pallet;
FIG. 5 is an underside plan view of the leg shown in FIG. 4; 7
FIG. 6 is a view similar to FIG. 4, butillustrating a second embodiment of the pallet leg;
FIG. 7 is a perspective view illustrating the manner in which the legs of the pallet may be nested to facilitate storage or shipment when disassembled from the deck.
Referring more specifically to the drawings, FIG. 1 illustrates'a conventional fork lift truck 10 transporting and stacking a number of palletized loads 12 for shipment or. storage. Each'load 12 is supported by the pallet of the subject invention which is broadly indicated by the numeral 14.
As seen in FIGS. 2-5, the pallet 14 comprises a substantially planardeck l5 including an upper panel member l6 defining a load bearing surface, an intermediate panel member 17, and a lower panel member 18 defining the undersurface. Preferably, the three panel members are generally rectangular and fabricated from corrugated paper sheeting, but other suitable materials such as fiber board, or Masonite, could be employed. Also, the three members are secured together by any suitable means, such as staples,
or adhesives, to form a unitarydeck 15 as shown in FIG. '2.
In the illustrated embodiment, nine legs 20 are provided for supporting the deck at a specified distance above ground level. Each of the legs 20 comprises a support member 22 having an upper radially extending generally circular transverse flange 24, an integral depending generally cylindrical portion 26, and a lower bottom wall 28' closing the cylindrical portion. A load bearing member 30 is positioned within the support member cylindrical portion and is axially co-extensive therewith, note FIG. 4. The support member 22 may for example be fabricated from a lightweight molded plastic material, such as polyethylene, polypropylene, or styrene. The load bearing member 30 may for example be fabricated from a spirally wound paper tube of conventional construction.
Means are provided for releasably securing the legs to the undersurface of the deck including nine generally oval openings or cut-outs 32 in the intermediate panel 17, and a corresponding number of second generally T-shaped openings or cut-outs 34 in the lower panel member 18. As shown in FIG. 5, each first cut-out 32 is dimensioned for receiving the flange 24 in coplanar relationship while permitting limited transversev movement. In this regard, each cut-out 32 has a width generally confomiing to the diameter of the flange 24, and a length equal to about twice the diameter of the flange. The second cut-out 34 is superposed over the first cut-out and is configured such that portions of the lower panel member 18 overlie the first cutout as shown in FIG. 5. More particularly, the second cut-out 34 includes a first portion 36 shown at the right side in FIG. 5 having a width generally similar to that of the first cut-out 32 and sufficient to laterally receive the flange 34, and a second portion 38 shown at the left A side in FIG. 5 and having a reduced width adapted to closely receive the support member cylindrical portion 26. Again viewing FIG. 5, it will be seen that the right end edge of the first portion 36 defines a flap 40 which overlies the. corresponding end of the firstcut-out 32.
To assemble the leg to the deck, the;load bearing member30 is dropped .into the support member cylindrical portion 26, and then the flange 24 is laterally inserted through the first portion 36 of the cut-out 34 and into the first cut-out 32,. Upon continued translation to support member inadvertently slide toward the right during use, the flap 40will overlie the flange 24 and prevent axial separation. However,should it be desired to remove the leg from the deck, it is merely necessary to lift theleadii'ig edge of the flange 24 over the flap 40, by hand or with a suitable tool, and continue movement toward the right. Thus it will be seen that the cut-outs -32 and 34 define a cavity in the undersurface of the deckwhich is adapted to selectively receive and retain the flange 24 of the leg.
.A second embodiment'of the subject invention is illustrated in FIG 6, and comprises a leg support member 50 having an upper circular transverse flange 52, a depending generally cylindrical portion 54'defining arelatively thick side wall, and a bottom wall 56.
"Ihe support member 50 may be constructed from a plastic of the type utilized in the member 20, but could also be constructed from wood, metal, or other suitable material. Thus by strengthening the side wall of the member 50 in the manner illustrated, the necessity for the load bearing member as shown-in the embodiment of FIGS. 2-5 is eliminated. i
As seen in FIG. 2, the legs of the pallet are'positioned in generally regular rows on' the deck undersurface to define passageways for admitting the forks of a lift truck'therebetween. As illustrated, the legs comprise three rows, each having three legs therein such that the lift truck may enter from any of the four sides. Also,it will be noted that the cut-outs 32' and 34 are disposed A in'differing rotational orientations in relation to each for supporting a light load. For slightly heavier loads,
an additional leg maybe positioned at the center. Thus the total .number of legs utilized may be minimized to further reduce the total cost of the pallet.
From the above description, it will be apparent that the illustrated pallet may be quickly and easily assembled and disassembled to significantly reduce the space occupied by the pallets during shipment and storage.
For example, the manufacturer may ship the pallets to a user with a large number of decks piled in a stack, and the supporting members nested a shown in FIG. 7. The load bearing members 30, if utilized; may be shipped loosely in a separate container, or they may be purchased locally by the user. The user may then asand then simply discarded. I
semble the palletsas needed, and afier use, they may be quickly disassembled or knocked-down without requiring the use of special tools. in the event a palletized load is shipped to a receiventhe receiver may disassemble the pallets fo'r return to and the reuse by the shipper. Alternatively, in view of the low cost of the pallets of this invention-,they may be used one-way" In the drawings and specification, there has been set forth a preferred embodiment-of the invention, and although specific terms are employed, they are used in a generic and descriptivesense only and not for pur-' poses of limitation.
Iclaimz I l. A lightweight pallet for supporting various products in palletized form during shipment orstorage, T and which-may be'readily assembled and disassembled to reduce storage space for the same, comprising a plurality of legs each comprising a support member having an upper transverse flange and a depending portion, 1 an upper panel member,
an intermediate panel member defining a plurality of I 25 A first cut-outs each configured for receiving the upper transverse flange of one'of said legs, a lower panel member defining a plurality of second cut-outs each configured for receiving the upper transverse flange of one'of said legs in one portion thereof and for entrapping said remainder thereof,
means for securing said panel members in stacked relation with said first cut-outs superposed on said second cut-outs and for forming of said panel members a substantially'planar'deck defining an upper loadbearing surface, an undersurface and a plurality of cavities therebetween for receiving in coplanar relationship the upper transverse flanges of said legs, I whereby said flanges 'may be laterally inserted through said one portion of .said second cut-outs.
and intosaid first cut-outs to be releasably entrapped within said cavities of said deck.
2. The palletas defined in claim 1 wherein said support member depending portion is generally cylindrical, and said transverse flange is generally circular and extends radially outwardly therefrom. I
3. The pallet as defined in claim 2 wherein said second cut-out is of generally T-shaped configuration including a first portion of sufficient width to laterally receive said support member flange and a second portion of reduced width adapted to closely receive said support member cylindrical depending portion. I
4. The pallet as defined in claim 3'wherein said first cut-out is generally oval to permit limited translationof the support member flange therein, and said second cut-out first portion defines a flap overlying one end of said oval first cut-out, such that the support member flange will underlie said flap when the support member is translated toward said one end.
5. The pallet as defined in claim 4 wherein said legs are positioned in generally regular rows on said deck undersurface to define passageways for admitting the flange in the surface to define passageways for receiving the forks of alift truck. 1
9. The pallet as defined in claim 7 wherein said upper, intermediate, and.lower,panel members each comprise corrugated paper sheeting, and said load bearing membercomprises a spirally wound paper tube.
10. The pallet as defined in claim 9 wherein said support member is plastic.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2706099 *||Apr 21, 1950||Apr 12, 1955||Gaylord Container Corp||Pallet|
|US2953339 *||Oct 16, 1958||Sep 20, 1960||Crown Zellerbach Corp||Standing supports for collapsible retaining sheets employing flanged metal pallet legs|
|US3407758 *||May 20, 1966||Oct 29, 1968||Continental Can Co||Expendable pallets|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4267781 *||Jul 30, 1979||May 19, 1981||Powers Richard J||Pallet and post construction therefor|
|US4579489 *||May 1, 1984||Apr 1, 1986||Palcon Corporation||Interlocking, stacking and nesting container system|
|US4653817 *||Dec 11, 1985||Mar 31, 1987||Merchandising Innovations, Inc.||Student desk|
|US4685401 *||Nov 25, 1985||Aug 11, 1987||Merchandising Innovations Co., Inc.||Coffee Table|
|US4735154 *||Dec 3, 1986||Apr 5, 1988||Allibert S.A.||Reinforced loading pallet and process for reinforcing same|
|US4799433 *||Feb 6, 1987||Jan 24, 1989||Menasha Corporation||Large capacity shipping pallet assembly|
|US5193464 *||Apr 25, 1991||Mar 16, 1993||Plastic Pallet Systems, Inc.||Polymer pallet leg for a cardboard pallet base|
|US5213050 *||Jun 26, 1992||May 25, 1993||Damage Prevention Products, Inc.||Integrated paper cargo pallet|
|US5367961 *||Oct 28, 1992||Nov 29, 1994||Arai; Hiroshi||Pallet support leg including semi-circular flange blades|
|US5388531 *||Apr 30, 1992||Feb 14, 1995||Stone Container Corporation||Shipping platform apparatus|
|US5537937 *||Jun 14, 1993||Jul 23, 1996||Damage Prevention Products, Inc.||Composited four-way paper cargo pallet|
|US5590606 *||Oct 20, 1994||Jan 7, 1997||Stone Container Corporation||Shipping platform apparatus|
|US5664394 *||Aug 1, 1995||Sep 9, 1997||Diversitech Corporation||Base for equipment|
|US5701827 *||Dec 8, 1993||Dec 30, 1997||Urabe; Toshinaga||Pallet assembly|
|US5799586 *||May 9, 1996||Sep 1, 1998||Videcart S.A.||Loading platform with dismountable legs and method for manufacturing loading platforms with dismount legs|
|US5830299 *||Jan 13, 1997||Nov 3, 1998||Videcart, S.A.||Method for manufacturing loading platforms with replaceable feet, and platform manufactured with said procedure|
|US5832841 *||Jan 3, 1997||Nov 10, 1998||Stone Container Corporation||Shipping platform apparatus|
|US6076475 *||Nov 6, 1998||Jun 20, 2000||Stone Container Corporation||Divisible shipping platform apparatus|
|US6698362 *||Nov 22, 2001||Mar 2, 2004||Sanvipalet, S.L.||Cardboard pallet|
|US6705237||Aug 24, 2001||Mar 16, 2004||Infiltrator Systems, Inc.||Plastic pallet design|
|US6935249||Dec 8, 2003||Aug 30, 2005||Infiltrator Systems, Inc.||Pallet substructure|
|US6955129||Dec 5, 2003||Oct 18, 2005||The Engineered Pallot Company, Llc||Plastic pallet design|
|US7308857||Mar 9, 2005||Dec 18, 2007||The Engineered Pallet Company, Llc||Pallet substructure and pallet design|
|US7578244 *||Mar 31, 2006||Aug 25, 2009||Williams Jr Larry Thomas||Easily assembled and repairable plastic shipping pallet|
|US7690315 *||Apr 6, 2010||Rehrig Pacific Company||Nestable pallet|
|US8230793||Apr 2, 2010||Jul 31, 2012||Rehrig Pacific Company||Nestable pallet|
|US8372498 *||Dec 17, 2007||Feb 12, 2013||Sikorsky Aircraft Corporation||Composite core densification|
|US8673418||Feb 4, 2013||Mar 18, 2014||Sikorsky Aircraft Corporation||Composite core densification|
|US20030124515 *||Aug 28, 2002||Jul 3, 2003||Saigene Corporation||Target amplification of nucleic acid with mutant RNA polymerase|
|US20040112261 *||Dec 5, 2003||Jun 17, 2004||Moore Roy E.||Plastic pallet design|
|US20040118325 *||Dec 5, 2003||Jun 24, 2004||Moore Roy E.||Plastic pallet design|
|US20050103237 *||Dec 5, 2003||May 19, 2005||Moore Roy E.Jr.||Collapsible plastic pallet design|
|US20050145143 *||Mar 9, 2005||Jul 7, 2005||Moore Roy E.Jr.||Pallet substructure and pallet design|
|US20060130712 *||Dec 20, 2004||Jun 22, 2006||Shih-Chieh Wang||Pallet structure|
|US20060169185 *||Mar 31, 2006||Aug 3, 2006||Williams Larry T Jr||Easily assembled and repairable plastic shipping pallet|
|US20060185565 *||Feb 21, 2006||Aug 24, 2006||Brochu Ronald P||Plastic pallet having metal deck|
|US20060201400 *||Feb 21, 2006||Sep 14, 2006||Moore Roy E Jr||Plastic pallet having deck suspension system|
|US20060201402 *||Mar 1, 2006||Sep 14, 2006||Moore Roy E Jr||Thermoplastic pallet for transporting food goods|
|US20060236900 *||Feb 21, 2006||Oct 26, 2006||Brochu Ronald P||Fire sprinkler-friendly pallet|
|US20060249058 *||Mar 1, 2006||Nov 9, 2006||Moore Roy E Jr||Fire resistant thermoplastic pallet|
|US20060254475 *||Feb 21, 2006||Nov 16, 2006||Moore Roy E Jr||Fire-collaspible cross-beamed pallet|
|US20070012225 *||Feb 23, 2006||Jan 18, 2007||Moore Roy E Jr||Pallet having crowned cross rail|
|US20070022919 *||Feb 21, 2006||Feb 1, 2007||Moore Roy E Jr||Low profile plastic pallet|
|US20070028814 *||Feb 21, 2006||Feb 8, 2007||Swistak Daniel J||Pallets having multi-purpose nubs|
|US20070051283 *||Feb 21, 2006||Mar 8, 2007||Moore Roy E Jr||Plastic pallet with sealed deck to frame joint|
|US20080308015 *||Jun 15, 2007||Dec 18, 2008||Apps William P||Nestable Pallet|
|US20090155502 *||Dec 17, 2007||Jun 18, 2009||Cournoyer David M||Composite core densification|
|US20100236455 *||Sep 23, 2010||Apps William P||Nestable pallet|
|DE19847166A1 *||Oct 14, 1998||Apr 27, 2000||Juergen Kara||Palette with plug-in feet consists of two layers with different apertures and guide webs locking into apertures in feet, for tool-free easy assembly|
|EP0785143A2 *||Jan 15, 1997||Jul 23, 1997||Videcart, S.A.||Method for manufacturing loading platforms with replaceable feet, and platform manufactured with said procedure|
|WO1994000354A1 *||Jun 25, 1993||Jan 6, 1994||Damage Prevention Products, Corp.||Integrated paper cargo pallet|
|WO1994029177A1 *||Jun 14, 1994||Dec 22, 1994||Damage Prevention Products Corp.||Composited four-way paper cargo pallet|
|WO1996035620A1 *||May 9, 1996||Nov 14, 1996||Casanovas Jaime Teixidor||Loading platform with dismountable legs|
|WO2002057149A1 *||Nov 22, 2001||Jul 25, 2002||Sanvipalet, S.L.||Improved cardboard pallet|
|Cooperative Classification||B65D2519/00323, B65D2519/00557, B65D19/0028, B65D2519/00293, B65D2519/00572, B65D2519/00432, B65D2519/00338, B65D2519/00273, B65D2519/00069, B65D2519/00985, B65D2519/00054, B65D2519/00567, B65D2519/00562, B65D2519/00019, B65D2519/00079|