Cooking device using solar energy

Abstract

Cooking device using solar energy and comprising a parabolic mirror characterised in that the mirror ( 1 ) has a large cut-out ( 3 ) extending up to the apex of the mirror which is fixed to the lower end of an angled arm ( 6 ) articulated in its upper part to the end of an upright ( 4 ), arranged substantially vertically, with means being provided to allow said mirror to pivot.

What is claimed is: 
     
         1 . Cooking device using solar power and comprising a parabolic mirror with a focal point, the mirror ( 1 ) having a cut-out ( 3 ) and being fixed to an arm ( 6 ) that is articulated onto an upright ( 4 ), the upright ( 4 ) defining with the focal point a plane known as the reference plane (P), characterised in that the arrangement is such that the mirror can pivot in relation to an axis (B) forming an angle (a) with the reference plane (P) which is in particular lower than 90°. 
     
     
         2 . Device according to  claim 1 , characterised in that the angle (A) is less than 30°. 
     
     
         3 . Device according to  claim 1 , characterised in that the angle (A) is substantially zero. 
     
     
         4 . Device according to  claim 1 , characterised in that the arm ( 6 ) is fixed to the mirror substantially at the level of the apex of the mirror. 
     
     
         5 . Device according to  claim 1 , characterised in that the upright ( 4 ) is substantially vertical. 
     
     
         6 . Device according to  claim 1 , characterised in that the arm ( 6 ) is angled in such a way as to have at least one section ( 22 ) extending substantially along the focal axis (A) of the mirror. 
     
     
         7 . Device according to  claim 6 , characterised in that the angled arm ( 6 ) also comprises a section that is substantially parallel to the upright ( 4 ). 
     
     
         8 . Device according to  claim 1 , characterised in that the mirror ( 1 ) is formed by the assembly of elementary parabolic surfaces ( 1   a ) each delimited by the intersection of two planes passing through the axis of the theoretical mirror or focal axis (A) of the mirror. 
     
     
         9 . Device according to  claim 1 , characterised in that the cut-out ( 3 ) is formed by assembling a smaller number of elementary surfaces ( 1   a ) than is necessary to form a complete parabola. 
     
     
         10 . Device according to  claim 8 , characterised in that the elementary surfaces are assembled and supported by arms ( 12 ) joined to the lower part of the arm ( 6 ) which traverses the mirror with a recess ( 7 ) being provided for this. 
     
     
         11 . Device according to  claim 1 , characterised in that the upright ( 4 ) has in its upper part and according to its axis, a finger ( 15 ) on which a bushing can slide axially and be locked to a support ( 2 ) for holding the cooking vessel.