Support device for liquid crystal flat screen

Abstract

Support device for a liquid crystal flat screen ( 12 ), in particular for computer workstations, of the type including an arm ( 14 ) suitable for connection to a carrying structure ( 16 ), and an articulating mechanism ( 18 ) interposed between the arm and the screen. The carrying structure includes a stirrup ( 20 ) with two horizontally spaced walls ( 104, 106 ) and respectively provided with two aligned apertures ( 108, 110 ) defining a horizontal passage ( 32 ) with a given axis (XX) capable of being passed through by the cantilevered arm ( 14 ).

1 . Support device for a liquid crystal flat screen ( 12 ), in particular for computer workstations, of the type comprising an arm ( 14 ) suitable for connection to a carrying structure ( 16 ), and an articulating mechanism ( 18 ) interposed between the arm and the screen, characterised in that the carrying structure comprises a stirrup ( 20 ) with two horizontally spaced walls ( 104 ,  106 ) and respectively provided with two aligned apertures ( 108 ,  110 ) defining a horizontal passage ( 32 ) with a given axis (XX) capable of being passed through by the cantilevered arm ( 14 ).  
     
     
         2 . Device according to  claim 1 , characterised in that the arm comprises a tube ( 28 ) with a circular cylindrical wall and in that at least one of the apertures ( 108 ,  110 ) comprises a V-shaped end to ensure the translatory and rotational locking of the tube by a wedging effect.  
     
     
         3 . Device according to  claim 2 , characterised in that the two apertures ( 108 ,  110 ) of the stirrup ( 20 ) each have a V-shaped end ( 112 ,  114 ) and in that these two V-shaped ends are arranged head to tail, the one directed upwardly and the other downwardly.  
     
     
         4 . Device according to either of claims  2  or  3 , characterised in that each of the V-shaped ends is delimited by two straight edges ( 116 ) forming a selected angle (A) between them and being joined to an edge in the shape of an arc of a circle ( 118 ) with a diameter slightly greater than the diameter of the tube.  
     
     
         5 . Device according to  claim 4 , characterised in that the selected angle (A) is between 50° and 70° and preferably equal to 60°.  
     
     
         6 . Device according to any one of  claims 1  to  5 , characterised in that the two walls ( 104 ,  106 ) of the stirrup are respectively part of two shells ( 100 ,  102 ) which are joined together.  
     
     
         7 . Device according to any one of  claims 1  to  6 , characterised in that the stirrup comprises a vertical cylindrical passage ( 130 ) having an axis (YY) which is substantially orthogonal to the axis (XX) of the horizontal passage ( 32 ), said vertical passage being provided to be passed through by a vertical cylindrical pole ( 22 ) which is part of the carrying structure, so as to allow the immobilisation of the stirrup in a defined axial and angular position relative to the pole ( 22 ) by a cantilever wedging effect.  
     
     
         8 . Device according to claims  6  and  7 , taken together, characterised in that each of the shells ( 100 ,  102 ) comprises an upper folded edge ( 122 ) provided with an upper notch ( 124 ) in the shape of an arc of a circle capable of facing a similar upper notch of the other shell, and a lower folded edge ( 126 ) provided with a lower notch ( 128 ) in the shape of an arc of a circle capable of facing a similar lower notch of the other shell.  
     
     
         9 . Device according to either of claims  7  and  8 , characterised in that the stirrup ( 20 ) also comprises a screw-type locking member ( 136 ) to lock the stirrup in this defined axial and angular position.  
     
     
         10 . Device according to any one of  claims 1  to  9 , characterised in that the arm is a telescopic tube ( 14 ) which comprises a first cylindrical portion ( 28 ) capable of sliding in the horizontal passage ( 32 ) of the stirrup ( 20 ) and a second cylindrical portion ( 30 ) capable of sliding in the first cylindrical portion ( 28 ) and supporting the ball ( 36 ).  
     
     
         11 . Device according to  claim 10 , characterised in that the first portion ( 28 ) and the second portion ( 30 ) of the tube each have a circular cylindrical shape and comprise mutual rotational locking means ( 34 ).