Fastening element for fastening solar modules to an inclined roof surface

Abstract

The invention relates to a fastening element for fastening solar modules to an inclined roof surface, including a base plate for fastening to a roof membrane of the roof surface or to a mounting rail supported on the roof membrane, at least one hook extending from the base plate for hanging a first frame of a first solar module, wherein the first frame in order to be hung is moved relative to the hook along a hanging direction, and a supporting wall extending opposite the hook from the base plate for supporting a second frame of a second solar module, wherein the supporting wall runs approximately perpendicularly to the hanging direction.

1 - 19 . (canceled) 
     
     
         20 . A fastening element for fastening solar modules to an inclined roof surface, comprising:
 a base plate for fastening to a roof membrane of the roof surface or to a mounting rail supported on the roof membrane;   at least one hook extending from the base plate for hanging a first frame of a first solar module, wherein the hook has a slot for the insertion of a free leg of the first frame formed in the manner of a U-profile and the extending direction of the slot runs approximately parallel to a hanging direction of the free leg; and   a supporting wall extending opposite the hook from the base plate approximately perpendicularly to the hanging direction,   wherein the supporting wall is configured to support a profile base plate of a second frame of a second solar module formed in the manner of a U-profile since the supporting wall has a height that is adapted to a further height of the profile base plate of the second frame, and   a bar overlapping the second frame in the mounted state extends at an angle from 80 to 100° from an upper edge of the supporting wall facing away from the base plate.   
     
     
         21 . The fastening element according to  claim 20 , wherein at least two through-openings passing through the base plate are provided. 
     
     
         22 . The fastening element according to  claim 20 , wherein a first distance between an opening plane of the slot running parallel to the supporting wall and the opposite supporting wall is 50 to 120 mm, preferably 60 to 80 mm. 
     
     
         23 . The fastening element according to  claim 20 , wherein two of the hooks extend from the base plate in a manner distanced by a second width from 40 to 140 mm, preferably 70 to 120 mm, in such a way that two first frames of two first solar modules can be hung adjacently in said hooks. 
     
     
         24 . The fastening element according to  claim 20 , wherein a supporting bar for stiffening the base plate and/or for supporting the first frame hung in the two hooks extends between said hooks from the base plate. 
     
     
         25 . A fastening element according to  claim 20 , wherein the supporting wall has a height from 30 to 60 mm, preferably 35 to 50 mm. 
     
     
         26 . The fastening element according to  claim 20 , wherein a third width of the supporting wall is 40 to 140 mm, preferably 70 to 120 mm. 
     
     
         27 . The fastening element according to  claim 20 , wherein the base plate, the at least one hook, and the supporting wall are produced integrally from a sheet metal or from an extruded profile. 
     
     
         28 . The fastening element according to  claim 20 , wherein the sheet metal is produced from aluminium or stainless steel. 
     
     
         29 . The fastening element according to  claim 20 , wherein the profile is produced from aluminium or plastic. 
     
     
         30 . The fastening element according to  claim 20 , produced from injection-moulded plastic. 
     
     
         31 . The fastening element according to  claim 20 , wherein a spacer plate having a thickness in the range from 1 to 30 mm is provided on an underside of the base plate facing away from the hook and the supporting wall. 
     
     
         32 . The fastening element according to  claim 20 , wherein the spacer plate is produced from a plastic or rubber material. 
     
     
         33 . The fastening element according to  claim 20 , wherein the spacer plate and the base plate are produced from one piece. 
     
     
         34 . The fastening element according to  claim 20 , wherein the underside of the base plate or a further underside of the spacer plate are formed such that they can be placed in a substantially form-fitting manner against a conventional trapezoidal sheet or a conventional roof corrugated sheet. 
     
     
         35 . A mounting element for mounting solar modules on an inclined roof surface, wherein a plurality of the fastening elements according to  claim 20  are mounted on a mounting rail at a fixedly predefined distance A, in such a way that the hooks are oriented in the same direction. 
     
     
         36 . The mounting element according to  claim 35 , wherein the following relationship applies for the distance A:
     A=B   Rahmen   −a−b−c+k,      
       wherein 
       B Rahmen  is a width of the frame, 
       a is a first depth of the hook, 
       b is a second depth of the free leg of the first frame, 
       c is a thickness of a profile baseplate of the U-profile of the first frame, and 
       k is a value in the range from 0 to 3 mm.