Shade, more particularly an umbrella and/or sunshade

Abstract

Improved shade, more particularly an umbrella and/or sunshade, which mainly consists of a bar ( 2 ), a canvas ( 3 ), arms ( 4 ) for stretching the canvas ( 3 ) and a bush ( 5 ) which can be moved over the bar ( 2 ), whereby the above-mentioned arms ( 4 ) are fixed to the above-mentioned canvas ( 3 ) with one far end ( 6 ) and are hinge-mounted to the above-mentioned bush ( 5 ) with their other far end ( 8 ), and whereby the above-mentioned canvas ( 3 ) is provided with cut-outs ( 9 ) on the edge ( 7 ) which make sure that forces ( 13 ) which are transmitted to the arms ( 4 ) by the above-mentioned canvas ( 3 ) converge in one point.

1 - 12 . (canceled)  
     
     
         13 . A collapsible shade, comprising a bar having a far end, a canvas fixed to the far end of the bar, arms for stretching the canvas and a bush which can be moved over the bar for opening and closing the canvas by means of the arms, wherein the arms are each fixed to the canvas at a far end thereof and are each hinge-mounted to the bush at their other end, and wherein the canvas is provided with cut-outs on an edge between two adjacent arms and wherein the cut-outs ensure that forces which are transmitted to the arms by the canvas converge at a single point located at the center point of the bush, and including means to provide an initial rotational movement to the arms when opening the shade and wherein the said means comprise at least one spring which is disposed between a respective arm and the bush.  
     
     
         14 . A collapsible shade according to  claim 13 , wherein the arms have different lengths.  
     
     
         15 . A collapsible shade according to  claim 13 , wherein the arms are straight.  
     
     
         16 . A collapsible shade according to  claim 14 , wherein the shape of the canvas is asymmetric.  
     
     
         17 . A collapsible shade according to  claim 14 , wherein said cut-outs are provided on an edge having different dimensions between two adjacent arms.  
     
     
         18 . A collapsible shade according to  claim 13 , wherein, in the opened position, the far ends of the arms which are connected to the canvas are situated in a single plane.  
     
     
         19 . A collapsible shade Umbrella according to  claim 18 , wherein the bar encloses an acute angle with the plane through the far ends of the arms.  
     
     
         20 . A collapsible shade Umbrella according to  claim 13 , wherein the bar is provided with a locking mechanism to lock the bush.  
     
     
         21 . A collapsible shade according to  claim 13 , wherein the bar is provided with a stop for the bush at its lowest position.  
     
     
         22 . A collapsible shade according to  claim 13 , wherein the arms are connected to the canvas near the edge of the canvas.  
     
     
         23 . A collapsible shade according to  claim 13 , wherein the canvas in the opened position is stretched in a self-supporting manner in a convex shape such that the canvas is only strained in tension.  
     
     
         24 . A collapsible shade according to  claim 18 , wherein the bush is arranged so that it can move through the plane including the far ends of the arms in the opened position to a location between the plane and the top of the bar.