Wind deflector of open car

Abstract

A roll bar is provided behind seats of an open car, and there is provided a wind deflector to deflect air flow coming from the vehicle rear during the open-state driving on the roll bar. The wind deflector is configured so as to have air permeability in such a manner that an air permeability rate of its upper section is greater than that of its lower section. Part of air flow passes through the wind deflector, and the passing speed of the air flow passing through its upper section becomes greater than that the air flow passing through its lower section. Accordingly, the air pressure decrease of the upper part of air flow becomes greater, and the whole air flow passing through the wind deflector tends to be directed upward.

1 . A wind deflector of an open car, in which an upper portion thereof above a belt line except a windshield is detachable or foldable so as to be stored, which is provided fixedly or detachably at a roll bar disposed behind a driver seat and an assistant seat and operative to substantially prevent an air flow from coming into a cabin from a vehicle rear behind the driver seat and the assistant seat and above the belt line, the wind deflector comprising: 
 a passing device operative to allow part of air flow coming from the vehicle rear to pass through the deflector forward; and    an air-flow-direction changing device operative to direct the passing-through air flow upward.    
   
   
       2 . The wind deflector of an open car of  claim 1 , wherein said wind deflector is configured so as to have air permeability in such a manner that an air permeability rate of an upper section thereof is greater than that of a lower section thereof.  
   
   
       3 . The wind deflector of an open car of  claim 2 , wherein said roll bar comprises a pair of projecting portions to project upward at parts thereof corresponding to the driver seat and assistant seat, and said wind deflector is located between said projecting portions.  
   
   
       4 . The wind deflector of an open car of  claim 3 , comprising a board having through holes.  
   
   
       5 . The wind deflector of an open car of  claim 4 , wherein a plurality of through holes are formed at said board, and said through holes are configured in such a manner that a size of the holes formed at an upper section of the board is greater than that of the holes formed at a lower section of the board.  
   
   
       6 . The wind deflector of an open car of  claim 4 , wherein a plurality of through holes having substantially the same size are formed at said board, and said through holes are configured in such a manner that the number of the holes per the unit area which are formed at an upper section of the board is greater than that of the holes which are formed at a lower section thereof of the board.  
   
   
       7 . The wind deflector of an open car of  claim 2 , wherein said wind deflector is attached to the roll bar so as to fall forward and/or rearward.  
   
   
       8 . The wind deflector of an open car of  claim 4 , wherein the vehicle is configured such that the upper portion thereof above the belt line including a roof is foldable except the windshield so as to be stored, and said roof is configured in a stored state thereof such that an outer face thereof is located behind the driver seat and assistant seat and turns upward and part thereof including a central portion thereof in a vehicle width direction is located above the belt line.  
   
   
       9 . The wind deflector of an open car of  claim 2 , wherein a rear face of the lower section of said wind deflector comprises an ornamental portion.  
   
   
       10 . The wind deflector of an open car of  claim 1 , comprising a first deflector member and a second deflector member which are provided behind the driver seat and assistant seat and above the belt line, said first deflector member being located with a specified clearance from the belt line, the second deflector member being located before said first deflector member so as to direct the air flow passing through said specified clearance upward.  
   
   
       11 . The wind deflector of an open car of  claim 10 , wherein said roll bar comprises a pair of projecting portions to project upward at parts thereof corresponding to the driver seat and assistant seat, and said first deflector member and second deflector member are located between said projecting portions.  
   
   
       12 . The wind deflector of an open car of  claim 11 , wherein said roll bar includes a horizontal portion to substantially horizontally interconnect the pair of projecting portions at substantially the same level as the belt line, and said second deflector member is provided so as to contact with an upper face of said horizontal portion of the roll bar.  
   
   
       13 . The wind deflector of an open car of  claim 12 , wherein said second deflector member is formed integrally at least with said horizontal portion of the roll bar.  
   
   
       14 . The wind deflector of an open car of  claim 10 , wherein said first deflector member is configured so as to have air permeability to allow part of the air flow to pass therethrough.  
   
   
       15 . The wind deflector of an open car of  claim 14 , wherein said first deflector member comprises a mesh material to have the air permeability.  
   
   
       16 . The wind deflector of an open car of  claim 14 , wherein said first deflector member comprises a board having through holes which is formed of resin.