Sun Shading Arrangement

Abstract

A sun shading arrangement is disclosed as including a sun shading portion, an arm arrangement connected with the sun shading portion, and a support portion connected with the arm arrangement, and the support portion is a double-helical structure. The arm arrangement includes at least two arms which are pivotable relative to each other, and a locking mechanism with a switch which is swivelable between a locked position in which the arms are locked against relative pivotable movement relative to each other and an unlocked position in which the arms are pivotable relative to each other.

1 . A sun shading arrangement including: a sun shading member; an arm arrangement connected with said sun shading member; and a support member connected with said arm arrangement; wherein at least part of said support member is a double-helical structure. 
   
   
       2 . An arrangement according to  claim 1  wherein said support member is generally cylindrical in shape. 
   
   
       3 . An arrangement according to  claim 1  wherein said double-helical structure runs along at least part of the length of said support member. 
   
   
       4 . An arrangement according to  claim 3  wherein said double-helical structure runs along a majority of the length of said support member. 
   
   
       5 . An arrangement according to  claim 1  wherein said support member includes a generally conical free first longitudinal end. 
   
   
       6 . An arrangement according to  claim 1  wherein each helix of said double-helical structure has a leading edge. 
   
   
       7 . An arrangement according to  claim 6  wherein said leading edges of said helixes are substantially parallel to each other. 
   
   
       8 . An arrangement according to  claim 6  wherein said leading edges of said helixes lie substantially on the same plane. 
   
   
       9 . An arrangement according to  claim 6  wherein the upper surface of the leading edge of said helix is slanted relative to the longitudinal axis of said support member by from 40° to 80°. 
   
   
       10 . An arrangement according to  claim 1  wherein said support member is engaged with a turn bar which is substantially perpendicular to the longitudinal axis of said support member. 
   
   
       11 . An arrangement according to  claim 1  wherein said turn bar is engaged with said support member adjacent a second longitudinal end of said support member. 
   
   
       12 . A sun shading arrangement including: a sun shading member; an arm arrangement connected with said sun shading member; and a support member connected with said arm arrangement; wherein said arm arrangement includes:
 at least two arm members which are pivotable relative to each other; and   a locking assembly with a switch member which is swivellable between a locked position in which said arm members are locked against relative pivotable movement relative to each other and an unlocked position in which said arm members are pivotable relative to each other.   
   
   
       13 . An arrangement according to  claim 12  wherein said switch member comprises at least one leg member in contact with a ring member, wherein swiveling of said switch member causes said ring member to move along a path generally parallel to an axis of swiveling of said switch member. 
   
   
       14 . An arrangement according to  claim 13  wherein when said switch member is swiveled from said locked position to said unlocked position, said ring member moves closer to said switch member. 
   
   
       15 . An arrangement according to  claim 14  further including biasing means for biasing said ring member towards said switch member. 
   
   
       16 . An arrangement according to  claim 13  wherein said locking assembly further includes a clutch member with a plurality of claw members, and wherein said clutch member is received within a stator member for relative rotational movement about a common longitudinal axis. 
   
   
       17 . An arrangement according to  claim 16  wherein said stator member includes a number of troughs each for receiving at least part of a respective claw member of said clutch member. 
   
   
       18 . An arrangement according to  claim 16  wherein said claw members are resiliently movable relative to a body of said clutch member. 
   
   
       19 . An arrangement according to  claim 18  wherein a free end of each said claw member is movable radially relative to the body of said clutch member. 
   
   
       20 . An arrangement according to  claim 14  wherein when said switch member is in said locked position, a stopping portion of said ring member is engaged with inner surfaces of the claw members to prevent inward radial movement of said free ends of said claw members, thus preventing relative rotational movement between said clutch member and said stator. 
   
   
       21 . An arrangement according to  claim 14  wherein when said switch member is in said unlocked position, a stopping portion of said ring member is out of engagement with inner surfaces of the claw members to allow inward radial movement of said free ends of said claw members, thus allowing relative rotational movement between said clutch member and said stator.