Scaffolding member and production method

Abstract

A scaffolding member ( 20 ) formed of reinforced plastic material with appropriate levels of strength and 2 stiffness. The scaffolding member ( 20 ) has a gripping surface on the external periphery thereof, preferably although not exclusively formed by the application of a 16 layer of sand ( 34 ). A method of forming the scaffolding 14 member ( 20 ) is also described. A scaffolding member ( 20 ) includes a substrate layer ( 22 ) having one or more protrusions ( 24 ). An outer layer ( 26, 28 or 32 ) is adhered to the substrate layer to form one or more nodes ( 40 ) at the external periphery by the presence of the one or more protrusions ( 24 ). A structural member ( 20 ) may be formed of reinforced plastics material wound to define one or more nodes ( 40 ) at the external periphery thereof.

1 - 41 . (canceled).  
     
     
         42 . A structural scaffolding member formed of reinforced plastics material wherein the scaffolding member has a gripping surface in the form of surface roughness on the external periphery.  
     
     
         43 . The scaffolding member as claimed in  claim 42 , including wound reinforcements.  
     
     
         44 . The scaffolding member as claimed in  claim 42 , including pultruded reinforced plastics material.  
     
     
         45 . The scaffolding member as claimed in  claim 42 , wherein the gripping surface comprises an applied medium.  
     
     
         46 . The scaffolding member as claimed in  claim 45 , wherein the medium is applied to an outer layer of wound reinforcements.  
     
     
         47 . The scaffolding member as claimed in  claim 45 , wherein there are two layers of the applied medium with an intervening layer of wound reinforcements.  
     
     
         48 . The scaffolding member as claimed in  claim 46 , wherein there are two layers of the applied medium with an intervening layer of wound reinforcements.  
     
     
         49 . The scaffolding member as claimed in  claim 45 , wherein the applied medium is sand or grit.  
     
     
         50 . The scaffolding member as claimed in  claim 46 , wherein the applied medium is sand or grit.  
     
     
         51 . The scaffolding member as claimed in  claim 45 , wherein the gripping surface extends for substantially the external periphery of the scaffolding member.  
     
     
         52 . The scaffolding member as claimed in  claim 46 , wherein the gripping surface extends for substantially the external periphery of the scaffolding member.  
     
     
         53 . The scaffolding member as claimed in  claim 45 , wherein the scaffolding member is elongate and has at least one node formed to extend from the external periphery.  
     
     
         54 . The scaffolding member as claimed in  claim 46 , wherein the scaffolding member is elongate and has at least one node formed to extend from the external periphery.  
     
     
         55 . The scaffolding member as claimed in  claim 53 , wherein each node extends transversely to the longitudinal axis of the scaffolding member.  
     
     
         56 . A structural member including a substrate layer of substantially uniform cross-section, one or more protrusions formed on the substrate layer by at least one former placed on the substrate layer and with an outer layer of structural material integrally adhered to the substrate layer such that the member is formed with at least one node at the external periphery by the presence of the at least one protrusion.  
     
     
         57 . The structural member as claimed in  claim 56 , wherein the substrate layer is formed from reinforced plastics material.  
     
     
         58 . The structural member as claimed in  claim 57 , wherein the substrate layer has wound reinforcements.  
     
     
         59 . The structural member as claimed in  claim 57 , wherein the substrate layer is pultruded.  
     
     
         60 . The structural member as claimed in  claim 56 , wherein the at least one protrusion is defined by at least one former placed on the substrate layer.  
     
     
         61 . The structural member as claimed in  claim 57 , wherein the at least one protrusion is defined by at least one former placed on the substrate layer.  
     
     
         62 . The structural member as claimed in  claim 58 , wherein the at least one protrusion is defined by at least one former placed on the substrate layer.  
     
     
         63 . The structural member as claimed in  claim 59 , wherein the at least one protrusion is defined by at least one former placed on the substrate layer.  
     
     
         64 . The structural member as claimed in  claim 60 , wherein the outer layer is formed from reinforced plastics material with reinforcements wound over the at least one former.  
     
     
         65 . The structural member as claimed in  claim 56 , wherein the member is elongate and there are a plurality of spaced nodes, each node is shaped like a ring extending transversely to the axis of the structural member.  
     
     
         66 . The structural member as claimed in  claim 57 , wherein the member is elongate and there are a plurality of spaced nodes, each node is shaped like a ring extending transversely to the axis of the structural member.  
     
     
         67 . The structural member as claimed in  claim 58 , wherein the member is elongate and there are a plurality of spaced nodes, each node is shaped like a ring extending transversely to the axis of the structural member.  
     
     
         68 . The structural member as claimed in  claim 59 , wherein the member is elongate and there are a plurality of spaced nodes, each node is shaped like a ring extending transversely to the axis of the structural member.  
     
     
         69 . A structural member formed of reinforced plastics material wherein the reinforcement is wound to define at least one node at the external periphery thereof.  
     
     
         70 . The structural member as claimed in  claim 69 , wherein the member is elongate and there are a plurality of spaced nodes, each of which is ring shaped and extending transversely to the axis of the structural member.  
     
     
         71 . The scaffolding member as claimed in  claim 69 , wherein the applied medium is sand or grit.  
     
     
         72 . The scaffolding member as claimed in  claim 42 , wherein the scaffolding member is elongate and has at least one node formed to extend from the external periphery.  
     
     
         73 . The scaffolding member as claimed in  claim 43 , wherein the scaffolding member is elongate and has at least one node formed to extend from the external periphery.  
     
     
         74 . The scaffolding member as claimed in  claim 44 , wherein the scaffolding member is elongate and has at least one node formed to extend from the external periphery.  
     
     
         75 . The scaffolding member as claimed in  claim 47 , wherein the scaffolding member is elongate and has at least one node formed to extend from the external periphery.  
     
     
         76 . The scaffolding member as claimed in  claim 47 , wherein the scaffolding member is elongate and has at least one node formed to extend from the external periphery.  
     
     
         77 . The structural member as claimed in  claim 60 , wherein the member is elongate and there are a plurality of spaced nodes, each node is ring shaped extending transversely to the axis of the structural member.  
     
     
         78 . The structural member as claimed in claim  36 , wherein the member is elongate and there are a plurality of spaced nodes, each node is ring shaped extending transversely to the axis of the structural member.