Plastic pallet

• US 5,505,141 A
• Filed: 02/24/1995
• Issued: 04/09/1996
• Est. Priority Date: 02/24/1995
• Status: Expired due to Fees

• Current Assignee: Roy W. Barber
• Original Assignee: Roy W. Barber
• Inventors: Barber, Roy W.
• Primary Examiner(s): Cranmer, Laurie K.
• Assistant Examiner(s): WILKENS, JANET MARIE
• Application Number:
  US08/394,271
• Time in Patent Office: 410 Days
• Field of Search: 108/51.1, 108/55.5, 108/56.1, 108/901, 108/57.1, 108/53.1
• US Class Current: 108/57.26
• CPC Class Codes: B65D 19/0038 and each contact surface having a stringer-like shape
• CPC Class Codes: B65D 2519/00034 Plastic
• CPC Class Codes: B65D 2519/00069 Plastic
• CPC Class Codes: B65D 2519/00273 made of more than one piece
• CPC Class Codes: B65D 2519/00278 the load supporting surface and the base surface being identical
• CPC Class Codes: B65D 2519/00288 made of one piece
• CPC Class Codes: B65D 2519/00318 made of one piece
• CPC Class Codes: B65D 2519/00333 contact surface having a stringer-like shape
• CPC Class Codes: B65D 2519/00343 contact surface being substantially in the form of a panel
• CPC Class Codes: B65D 2519/00572 with separate auxiliary element, e.g. screws, nails, bayonets
• CPC Class Codes: Y10S 108/901 Synthetic plastic industrial platform, e.g. pallet

Abstract

A plastic pallet is formed of two identical interlocking and mating components joined along a common center plane. At least one internal component is stepped, with the steps of two components fitting together to interlock the two components together when they are assembled. The two components include integrally formed plural spaced apart deck boards, tiedown passages, and fork lift slots or passages in each of the four sides of the rectangular assembly. A generally rectangular peripheral structure and a cruciform central structure are provided for additional reinforcement. The two halves are bolted together for use, with an assembled pallet being easily disassembled to remove a damaged component for replacement. As the two components comprising the present pallet are identical, they may be cast or formed in a single mold, or in identical molds, with any half pallet component serving as a replacement. The components are preferably formed of thermoplastic material which may be recycled if damaged or otherwise rendered unsuitable for further use.

Claims

1. A plastic pallet comprising:

a first pallet half and a second pallet half, with each said pallet half being identical to one another and being monolithically form med entirely of plastic material and devoid of other materials;

each said pallet half halving a substantially rectangular said peripheral member with a plurality of spaced apart deck boards extending thereacross and formed integrally therewith, with each said peripheral member having a flat surface defining a mating plane for each said pallet half when each said pallet half is joined together to form said pallet;

each said pallet half further including at least one stepped central crossmember extending across said peripheral member and formed integrally therewith, said crossmember being evenly divided lengthwise into a portion protruding above said mating plane of said peripheral member and a portion depressed below said mating plane of said peripheral member, thereby defining an elongate step extending across said peripheral member of each said pallet half, and,

each said pallet half being placed together with each said mating plane of each said peripheral member in mating contact, with said protruding portion of said first pallet half crossmember mating with said depressed portion of said second pallet half crossmember and said protruding portion of said second pallet half crossmember mating with said depressed portion of said first pallet half crossmember to removably interlock each said pallet half together to form a completed pallet.

2. The plastic pallet of claim 1 wherein:

said peripheral member of each said pallet half includes two spaced apart depressions in each side thereof, with said depressions of each said pallet half being in registry when each said pallet half is assembled together to provide fork lift slots in each side of said pallet, and;

each said at least one central crossmember includes two spaced apart depressions aligned with opposed said spaced apart depressions of said peripheral member to provide continuous fork it passages completely through said pallet when each said pallet half is assembled together.

3. The plastic pallet of claim 1 wherein:

said at least one central crossmember is perpendicular to said deck boards.

4. The plastic pallet of claim 1 wherein:

said at least one central crossmember is parallel to said deck boards.

5. The plastic pallet of claim 1 wherein:

each said pallet half includes a first and a second central crossmember extending across said peripheral member, with said first and said second crossmember being perpendicular to one another to form a cruciform configuration, and said first crossmember further being perpendicular to said deck boards and being stepped to provide for interlocking of each said pallet half to form a completed pallet.

6. The plastic pallet of claim 1 wherein:

each said pallet half includes a first and a second central crossmember extending across said peripheral member, with said first and said second crossmember being perpendicular to one another to form a cruciform configuration, and said first crossmember further being parallel to said deck boards and being stepped to provide for interlocking of each said pallet half to form a completed pallet.

7. The plastic pallet of claim 1 wherein:

each said pallet half includes a first and a second central crossmember extending across said peripheral member, with said first and said second crossmember being perpendicular to one another to form a cruciform configuration, and;

each said crossmember includes two spaced apart depressions aligned with opposed spaced apart depressions formed in said peripheral member to provide continuous fork lift passages completely through said pallet when each said pallet half is assembled together.

8. The plastic pallet of claim 1 wherein:

each said pallet half includes tiedown passages therethrough, disposed in at least two opposite sides thereof and one said central crossmember therebetween.

9. The plastic pallet of claim 1 wherein:

each said pallet half includes a plurality of fastener holes therethrough, with each of said fastener holes including a depression therein providing clearance for a bolt head and nut.

13. The plastic pallet component of claim 1, wherein:

said at least one central crossmember is perpendicular to said deck boards.

10. The plastic pallet of claim i wherein:

said plastic material from which each said pallet half is formed is selected from the group consisting of polyethylene, polypropylene, polystyrene, acrylic, acrylonitrile butadiene styrene, and polyvinyl chloride.

11. A plastic pallet component comprising:

a pallet half monolithically formed entirely of plastic material and devoid of other materials;

said pallet half having a substantially rectangular peripheral member with a plurality of spaced apart deck boards extending thereacross and formed integrally therewith, with said. perpheral member having a flat surface defining a mating plane for said pallet half;

said pallet half further including at least one stepped central crossmember extending across said peripheral member and formed integrally therewith, said crossmember being evenly divided lengthwise into a portion protruding above said mating plane of said peripheral member and a portion depressed below said mating plane of said peripheral member, thereby defining an elongate step extending across said peripheral member of said pallet half, whereby;

said pallet half is adapted to be placed together with another said pallet half of identical configuration, with said elongate step of said peripheral member of said pallet half interlocking with said another said pallet half of identical configuration to provide a completed pallet assembly.

12. The plastic pallet component of claim 11 wherein:

said peripheral member of said pallet half includes two spaced apart depressions in each side thereof to provide fork lift slots in each side of said pallet component, and;

said at least one central crossmember includes two spaced apart depressions aligned with opposed said spaced apart depresssion of said peripheral member to provide continuous fork lift passages completely across said pallet component.

14. The plastic pallet component of claim 11 wherein:

said at least one central crossmember is parallel to said deck boards.

15. The plastic pallet component of claim 11 wherein:

said pallet half includes a first and a second central crossmember extending across said peripheral member, with said first and said second crossmember being perpendicular to one another to form a cruciform configuration, and said first crossmember further being perpendicular to said deck boards and being stepped to provide interlocking means, whereby;

one said pallet half is interlocked with another said pallet half to form a completed pallet.

17. The plastic pallet component of claim 11 wherein:

said pallet half includes a first and a second central crossmember extending across said peripheral member, with said first and said second crossmember being perpendicular to one another to form a cruciform configuration, and;

each said crossmember includes two spaced apart depressions aligned with opposed spaced apart depressions formed in said peripheral member to provide continuous fork lift passages completely across said pallet component.

18. The plastic pallet component oil claim 11 wherein:

said pallet half includes tiedown passages therethrough, disposed in at least two opposite sides thereof and one said central crossmember therebetween.

19. The plastic pallet component of claim 11 wherein:

said pallet half includes a plurality of fastener holes therethrough, with each of said fastener holes including a depression therein providing clearance for a bolt head and nut.

20. The plastic pallet component of claim 11 wherein:

said plastic material from which said pallet half is formed is selected from the group consisting of polyethylene, polypropylene, polystyrene, acrylic, acrylonitrile butadiene styrene, and polyvinyl chloride.

16. The plastic pallet component of claim 1i wherein:

said pallet half includes a first and a second central crossmember extending across said peripheral member, with said first and said second crossmember being perpendicular to one another to form a cruciform configuration, and said first crossmember further being parallel to said deck boards and being stepped to provide interlocking means, whereby;

one said pallet half is interlocked with another said pallet half to form a completed pallet.