Stiffness reinforced floor panel for a raised floor system

Abstract

A floor panel for a raised floor system is provided, where the floor panel includes a plate member with at least one longitudinal groove and a reinforcing member at least a portion of which is inserted into the longitudinal groove. The longitudinal groove is formed on the plate member of the floor panel for a raised floor system, and a stick type reinforcing member and/or a plate type reinforcing member is inserted into the longitudinal groove. Thereby, a thickness of the floor panel can be reduced and at the same time high stiffness and light weight of the floor panel can be achieved, and so a better walking feeling can be obtained and wider spacing of pedestals can be achieved. By coating the plate with a waterproof composition, it is possible to overcome drawbacks of a size and strength thereof being changed and deteriorated by being exposed to moisture.

1 . A floor panel for a raised floor system, comprising: 
 a plate member with at least one longitudinal groove; and    a reinforcing member, at least a portion of which is inserted into the longitudinal groove.    
   
   
       2 . The floor panel of  claim 1 , wherein: 
 the plate member comprises an upper plate member and a lower plate member; and    the at least one longitudinal groove is formed on at least one of a lower surface of the upper plate member and an upper surface of the lower plate member.    
   
   
       3 . The floor panel of  claim 2 , wherein: 
 the reinforcing member comprises a stick type reinforcing member having the same sectional shape as the longitudinal groove.    
   
   
       4 . The floor panel of  claim 2 , wherein: 
 the reinforcing member comprises a plate type reinforcing member bent corresponding to a shape of the longitudinal groove; and    a bent portion of the plate type reinforcing member is inserted into the longitudinal groove.    
   
   
       5 . The floor panel of  claim 2 , wherein: 
 the reinforcing member comprises a plate type reinforcing member bent corresponding to a shape of the longitudinal groove and a stick type reinforcing member having the same sectional shape as the longitudinal groove;    a bent portion of the plate type reinforcing member is inserted into the longitudinal groove; and    the stick type reinforcing member is inserted into the bent portion of the plate type reinforcing member.    
   
   
       6 . The floor panel of  claim 2 , wherein: 
 at least one longitudinal groove is formed on each of a lower surface of the upper plate member and an upper surface of the lower plate member; and    the reinforcing member includes a stick type reinforcing member having the same sectional shape as a coupling longitudinal groove formed by a combination of the upper plate and the lower plate, and the stick type reinforcing member is inserted into the coupling longitudinal groove.    
   
   
       7 . The floor panel of  claim 2 , wherein: 
 at least one longitudinal groove is formed on each of a lower surface of the upper plate and an upper surface of the lower plate;    the reinforcing member includes at least one plate type reinforcing member bent corresponding to a shape of a coupling longitudinal groove formed by a combination of the upper plate and the lower plate; and    a bent portion of the plate type reinforcing member is inserted into the coupling longitudinal groove.    
   
   
       8 . The floor panel of  claim 2 , wherein: 
 at least one longitudinal groove is formed on each of a lower surface of the upper plate and an upper surface of the lower plate;    the reinforcing member includes at least one plate type reinforcing member bent corresponding to a shape of a coupling longitudinal groove formed by a combination of the upper plate and the lower plate and a stick type reinforcing member having the same sectional shape as the coupling longitudinal groove;    the plate type reinforcing member is inserted into the longitudinal groove; and    the stick type reinforcing member is inserted into a bent portion of the plate type reinforcing member.    
   
   
       9 . The floor panel of  claim 1 , wherein: 
 the plate member is formed as a single plate; and    the at least one longitudinal groove is formed on a lower surface of the plate member.    
   
   
       10 . The floor panel of  claim 9 , wherein the reinforcing member comprises a stick type reinforcing member having the same sectional shape as the longitudinal groove.  
   
   
       11 . The floor panel of  claim 9 , wherein: 
 the reinforcing member comprises a plate type reinforcing member bent corresponding to a shape of the longitudinal groove; and    a bent portion of the plate type reinforcing member is inserted into the longitudinal groove.    
   
   
       12 . The floor panel of  claim 9 , wherein: 
 the reinforcing member comprises a plate type reinforcing member bent corresponding to a shape of the longitudinal groove and a stick type reinforcing member having the same sectional shape as the longitudinal groove;    the plate type reinforcing member is inserted into the longitudinal groove; and    the stick type reinforcing member is inserted into a bent portion of the plate type reinforcing member.    
   
   
       13 . The floor panel of  claim 1 , wherein sectional shapes of the longitudinal groove and the reinforcing member are a tetragon, a circle, an ellipse, or a triangle.  
   
   
       14 . The floor panel of  claim 2 , wherein sectional shapes of the longitudinal groove and the reinforcing member are a tetragon, a circle, an ellipse, or a triangle.  
   
   
       15 . The floor panel of  claim 9 , wherein sectional shapes of the longitudinal groove and the reinforcing member are a tetragon, a circle, an ellipse, or a triangle.  
   
   
       16 . The floor panel of  claim 3 , wherein the stick type reinforcing member is an aluminum bar, a steel bar, or a high strength plastic bar.  
   
   
       17 . The floor panel of  claim 5 , wherein the stick type reinforcing member is an aluminum bar, a steel bar, or a high strength plastic bar.  
   
   
       18 . The floor panel of  claim 6 , wherein the stick type reinforcing member is an aluminum bar, a steel bar, or a high strength plastic bar.  
   
   
       19 . The floor panel of  claim 8 , wherein the stick type reinforcing member is an aluminum bar, a steel bar, or a high strength plastic bar.  
   
   
       20 . The floor panel of  claim 10 , wherein the stick type reinforcing member is an aluminum bar, a steel bar, or a high strength plastic bar.  
   
   
       21 . The floor panel of  claim 12 , wherein the stick type reinforcing member is an aluminum bar, a steel bar, or a high strength plastic bar.  
   
   
       22 . The floor panel of  claim 4 , wherein the plate type reinforcing member is a zinc-coated steel plate or a general steel plate.  
   
   
       23 . The floor panel of  claim 5 , wherein the plate type reinforcing member is a zinc-coated steel plate or a general steel plate.  
   
   
       24 . The floor panel of  claim 7 , wherein the plate type reinforcing member is a zinc-coated steel plate or a general steel plate.  
   
   
       25 . The floor panel of  claim 8 , wherein the plate type reinforcing member is a zinc-coated steel plate or a general steel plate.  
   
   
       26 . The floor panel of  claim 11 , wherein the plate type reinforcing member is a zinc-coated steel plate or a general steel plate.  
   
   
       27 . The floor panel of  claim 12;  wherein the plate type reinforcing member is a zinc-coated steel plate or a general steel plate.  
   
   
       28 . The floor panel of  claim 1 , wherein the plate member is a particle board (PB), a plywood, a medium density fiberboard (MDF), a high density fiberboard (HDF), an oriented strand board (OSB), a wood wool cement board, or a concrete cement plate.  
   
   
       29 . The floor panel of  claim 2 , wherein the plate member is a particle board (PB), a plywood, a medium density fiberboard (MDF), a high density fiberboard (HDF), an oriented strand board (OSB), a wood wool cement board, or a concrete cement plate.  
   
   
       30 . The floor panel of  claim 9 , wherein the plate member is a particle board (PB), a plywood, a medium density fiberboard (MDF), a high density fiberboard (HDF), an oriented strand board (OSB), a wood wool cement board, or a concrete cement plate.  
   
   
       31 . The floor panel of  claim 28 , wherein the plate member is coated by a waterproof composition comprising 22 to 60 weight % of an acrylic resin, 5 to 30 weight % of a water repellent agent, 3 to 20% of a hydrogenated rosin, 0.5 to 5 weight % of a penetrating agent, 2 to 8 weight % of an additive agent, and 1 to 15 weight % of a high-boiling-point solvent.  
   
   
       32 . The floor panel of  claim 29 , wherein the plate is coated by a waterproof composition comprising 22 to 60 weight % of an acrylic resin, 5 to 30 weight % of a water repellent agent, 3 to 20% of a hydrogenated rosin, 0.5 to 5 weight % of a penetrating agent, 2 to 8 weight % of an additive agent, and 1 to 15 weight % of a high-boiling-point solvent.  
   
   
       33 . The floor panel of  claim 30 , wherein the plate is coated by a waterproof composition comprising 22 to 60 weight % of an acrylic resin, 5 to 30 weight % of a water repellent agent, 3 to 20% of a hydrogenated rosin, 0.5 to 5 weight % of a penetrating agent, 2 to 8 weight % of an additive agent, and 1 to 15 weight % of a high-boiling-point solvent.  
   
   
       34 . The floor panel of  claim 31 , wherein a diameter of a particle of the acrylic resin is between 0.1 to 0.5 μm.  
   
   
       35 . The floor panel of  claim 31 , wherein the acrylic resin is at least one selected from the group consisting of water-soluble acrylic resin, Styrene Maleic Anhydride copolymer (SMA), acrylic hybrid emulsion, and urethane hybrid resin.  
   
   
       36 . The floor panel of  claim 31 , wherein the water repellent agent is at least one selected from the group consisting of polyethylene wax, polypropylene wax, paraffin wax, fluorine-based water repellent agent, and silicone-based water repellent agent.  
   
   
       37 . The floor panel of  claim 31 , wherein the hydrogenated rosin is at least one selected from the group consisting of ester gum rosin, terpene phenol, petroleum resin, hydrocarbon, and synthetic resin emulsion.  
   
   
       38 . The floor panel of  claim 31 , wherein the penetrating agent is at least one negative ionic surfactant selected from the group consisting of sodium alkyl ester, naphthalene sulphonate, phosphate-based surfactant, and nonyl phenyl alkyl-based surfactant.  
   
   
       39 . The floor panel of  claim 31 , wherein the high-boiling-point solvent is at least one selected from the group consisting of ethylene glycol, propylene glycol, and diethylene glycol.