US2019071883A1PendingUtilityA1

Scaffold board

21
Assignee: TECH PLAS EXTRUSIONS PTY LTDPriority: Mar 15, 2016Filed: Feb 23, 2017Published: Mar 7, 2019
Est. expiryMar 15, 2036(~9.6 yrs left)· nominal 20-yr term from priority
Inventors:Andrew J. C. SwannRobert W. QuinnJorge Esquen
E04G 1/153E04G 5/08E04C 2/543E04C 2/20E04C 2/365E04C 2/36
21
PatentIndex Score
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Claims

Abstract

A scaffold board ( 10 ) of extruded thermoplastic material. The board ( 10 ) includes a substantially rectangular outer profile and a plurality of strengtheners ( 20 ). The substantially rectangular outer profile is defined by a top wall ( 12 ), a bottom wall ( 14 ) and a pair of side walls ( 16, 18 ). The plurality of strengtheners ( 20 ) each extend between an inner surface of the top wall and an inner surface of the bottom wall. Each of the strengtheners have a middle part ( 20 c ), a pair of top parts ( 20 a, 20 b ), and a pair of bottom parts ( 20 d, 20 e ). The middle part ( 20 c ) is oriented normally to the plane of the top wall ( 12 ) and the bottom wall ( 14 ). The pair of top parts ( 20 a, 20 b ) each extend outwardly from a top of the middle part ( 20 c ) to the inner surface of the top wall ( 12 ) in substantially equal and opposite directions respectively. The pair of bottom parts ( 20 d, 20 e ) each extend outwardly from a bottom of the middle part ( 20 c ) to the inner surface of the bottom wall ( 14 ) in substantially equal and opposite angles.

Claims

exact text as granted — not AI-modified
1 . A scaffold board of extruded thermoplastic material, the board including:
 a substantially rectangular outer profile defined by a top wall, a bottom wall and a pair of side walls; and   a plurality of strengtheners, each extending between an inner surface of the top wall and an inner surface of the bottom wall,   wherein each of the strengtheners have:   a middle part oriented normally to the plane of the top wall and the bottom wall;   a pair of top parts, each extending outwardly from a top of the middle part to the inner surface of the top wall in substantially equal and opposite directions respectively; and   a pair of bottom parts, each extending outwardly from a bottom of the middle part to the inner surface of the bottom wall in substantially equal and opposite angles.   
     
     
         2 . The scaffold board as claimed in  claim 1 , wherein the top wall, the bottom wall, the side walls and the strengtheners extend longitudinally along a length of the scaffold board. 
     
     
         3 . The scaffold board as claimed in  claim 1 , wherein the top wall, the bottom wall, the side walls and the strengtheners are integrally formed. 
     
     
         4 . The scaffold board as claimed in  claim 1 , wherein the pair of top parts of each strengthener defines a triangular longitudinal recess with the adjacent inner surface of the top wall. 
     
     
         5 . The scaffold board as claimed in  claim 4 , wherein the pair of bottom parts of each strengthener defines a triangular longitudinal recess with the adjacent inner surface of the bottom wall. 
     
     
         6 . The scaffold board as claimed in  claim 4 , wherein a hexagonal longitudinal recess is defined between adjacent said strengtheners. 
     
     
         7 . The scaffold board as claimed in  claim 1 , wherein an octagonal longitudinal recess is defined between adjacent said strengtheners. 
     
     
         8 . The scaffold board as claimed in  claim 1 , wherein the top wall, the bottom wall and the side walls are thicker than the middle parts, the top parts and the bottom parts. 
     
     
         9 . The scaffold board as claimed in  claim 1 , wherein the top wall and the bottom wall include textured non-slip outer surfaces. 
     
     
         10 . The scaffold board as claimed in  claim 1 , wherein the board is extruded from PCV. 
     
     
         11 . The scaffold board as claimed in  claim 10 , wherein the board is extruded from PCV type k62 or k66. 
     
     
         12 . A scaffold board of extruded thermoplastic material, the board including:
 a substantially rectangular outer profile defined by a top wall, a bottom wall and a pair of side walls;   a plurality of top triangular hollow recesses extending longitudinally through the board, each having one side parallel to the plane of the top wall;   a plurality of bottom hollow triangular recesses extending longitudinally through the board, each having one side parallel to the plane of the bottom wall; and   a plurality of hollow hexagonal or octagonal recesses extending longitudinally through the board, each being positioned between adjacent opposed pairs of top triangular recesses and bottom triangular recesses.   
     
     
         13 . The scaffold board as claimed in  claim 12 , wherein the plurality of hollow recesses extending longitudinally through the board between adjacent opposed pairs of top triangular recesses and bottom triangular recesses are hexagonal. 
     
     
         14 . The scaffold board as claimed in  claim 12 , wherein the plurality of hollow recesses extending longitudinally through the board between adjacent opposed pairs of top triangular recesses and bottom triangular recesses are octagonal. 
     
     
         15 . The scaffold board as claimed in  claim 12 , wherein the top wall, the bottom wall, the side walls are integrally formed with the top triangular recesses, the bottom triangular recesses and the hexagonal/octagonal recesses. 
     
     
         16 . The scaffold board as claimed in  claim 12 , wherein the top wall and the bottom wall include textured or non-slip outer surfaces. 
     
     
         17 . The scaffold board as claimed in  claim 12 , wherein the board is extruded from PCV. 
     
     
         18 . The scaffold board as claimed in  claim 17 , wherein the board is extruded from PCV type k62 or k66. 
     
     
         19 . A scaffold board of extruded thermoplastic material, the board including:
 a substantially rectangular outer profile defined by a top wall, a bottom wall and a pair of side walls; and   an internal honeycomb strengthening structure, within the top wall, the bottom wall and the pair of side walls, defined by a row of longitudinally extending cells, each of the cells defined by a 6 or 8 sided polygon with its longest dimension oriented normally to the plane of the top wall and the bottom wall.   
     
     
         20 . The scaffold board as claimed in  claim 19 , wherein the polygon is a hexagon. 
     
     
         21 . The scaffold board as claimed in  claim 19 , wherein the polygon is an octagon. 
     
     
         22 . The scaffold board as claimed in  claim 19 , wherein the top wall, the bottom wall, the side walls and the strengtheners extend longitudinally along a length of the scaffold board. 
     
     
         23 . The scaffold board as claimed in  claim 19 , wherein the top wall, the bottom wall, the side walls and the honeycomb strengthening structure are integrally formed. 
     
     
         24 . The scaffold board as claimed in  claim 19 , wherein the top wall, the bottom wall and the side walls are thicker than the walls of the honeycomb strengthening structure. 
     
     
         25 . The scaffold board as claimed in  claim 19 , wherein the top wall and the bottom wall include textured non-slip outer surfaces. 
     
     
         26 . The scaffold board as claimed in  claim 19 , wherein the board is extruded from PCV. 
     
     
         27 . The scaffold board as claimed in  claim 26 , wherein the board is extruded from PCV type k62 or k66.

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