Reinforced plastic pallet

Abstract

A reinforced plastic pallet includes a load-supporting platform, four corner legs respectively adjacent to corner surfaces of the platform, and four side legs respectively adjacent to side edges, and two side reinforcing bars protruding downward from a bottom surface of the platform. Each leg has a hollow structure defined by a surrounding wall. An inner surface of the surrounding wall confines a hollow space and is formed with a plurality of ridges and troughs arranged alternately and angularly displaced from one another. Each side reinforcing bar defines a groove in a top surface of the platform, and extends into the hollow spaces. The structure of the whole plastic pallet can be strengthened.

1 . A reinforced plastic pallet comprising:
 a load-supporting platform having top and bottom surfaces, two first side edges which extend between said top and bottom surfaces in a first direction, two second side edges which extend between said top and bottom surfaces in a second direction that is transverse to the first direction, and four corner surfaces, each interconnecting one of said first side edges and one of said second side edges;   a supporting leg unit including four corner legs which are respectively adjacent to said corner surfaces, and four side legs which are respectively adjacent to said first and second side edges, each of said corner and side legs having a hollow structure defined by a surrounding wall which extends downwardly from said bottom surface and which has an inner surface, said inner surface confining a hollow space and being formed with a plurality of ridges and troughs which are arranged alternately and which are angularly displaced from one another about a line extending downward from said bottom surface; and   two side reinforcing bars each protruding downward from said bottom surface and defining a groove in said top surface, each of said side reinforcing bars extending along one of said first side edges and into said hollow spaces of two of said corner legs and one of said side legs.   
     
     
         2 . The reinforced plastic pallet according to  claim 1 , wherein said supporting leg unit further includes a center leg which is disposed at a center of said bottom surface, said center leg having a hollow structure defined by a surrounding wall which extends downwardly from said bottom surface and which has an inner surface, said inner surface confining a hollow space and being formed with a plurality of ridges and troughs which are arranged alternately and which are angularly displaced from one another about a line extending downward from said bottom surface;
 said reinforced plastic pallet further comprising a middle reinforcing bar protruding downward from said bottom surface and defining a groove in said top surface, said middle reinforcing bar extending in the first direction between said side reinforcing bars and into said hollow spaces of two of said side legs and said center leg.   
     
     
         3 . The reinforced plastic pallet according to  claim 1 , wherein said surrounding wall of each of said corner legs has an outer surface including two longitudinal faces extending in the second direction, and two transverse faces interconnecting said longitudinal faces, one of said longitudinal faces being flush with a respective one of said second side edges, one of said transverse faces being flush with a respective one of said corner surfaces. 
     
     
         4 . The reinforced plastic pallet according to  claim 1 , wherein said surrounding wall of each of said side legs has an outer surface which includes two substantially longitudinal faces extending in the second direction, and two transverse faces interconnecting said longitudinal faces, one of said longitudinal faces of each of said side legs adjacent to said second side edges being flush with a respective one of said second side edges, one of said transverse faces of each of said side legs adjacent to said first side edges being flush with a respective one of said first side edges. 
     
     
         5 . The reinforced plastic pallet according to  claim 1 , wherein each of said troughs has a curvedly concaved surface, and each of said ridges has a substantially flat ridge surface formed between said concaved surfaces of two of said troughs. 
     
     
         6 . The reinforced plastic pallet according to  claim 1 , wherein each of said grooves is confined by two opposite groove sidewalls which extend downwardly from said top surface, and a groove bottom interconnecting said groove sidewalls, said groove bottom wall being lower than said bottom surface of said platform, and being higher than a bottom end of each of said corner and side legs. 
     
     
         7 . The reinforced plastic pallet according to  claim 1 , wherein said platform further has a plurality of leg cavities formed in said top surface and disposed respectively and directly above said corner and side legs, each of said leg cavities having an outer periphery substantially corresponding to an outer periphery of a bottom end of said surrounding wall of one of said corner and side legs. 
     
     
         8 . The reinforced plastic pallet according to  claim 7 , wherein said platform further has a plurality of protrusions formed within said leg cavities, respectively, each of said protrusions being corresponding in position to said hollow space of one of said corner and side legs. 
     
     
         9 . The reinforced plastic pallet according to  claim 2 , wherein said platform further has a leg cavity formed in said top surface directly above said center leg, and a protrusion formed within said leg cavity, said leg cavity having an outer periphery substantially corresponding to an outer periphery of a bottom end of said surrounding wall of said center leg, said protrusion being corresponding in position to said hollow space of said center leg.