Electric motor driven dual drive

Abstract

An electric motor driven dual drive for adjusting support parts of a support apparatus for supporting padding of seating and/or lounging furniture, in particular a box spring mattress or an upholstered bed, has a base body, and two spaced-apart pivot elements, in particular pivot levers, which in the installed position of the dual drive are each supported on the base body so as to be pivotable about a pivot axis, and which are each associated with at least one support part to be adjusted. At least one electric motor driven drive unit is associated with each pivot element, and the distance between the pivot axes is at least 620 mm.

What is claimed is: 
     
         1 . An electric motor driven dual drive for adjusting support parts of a support apparatus for supporting padding of seating and/or lounging furniture, in particular a box spring mattress or an upholstered bed, comprising:
 a) a base body;   b) two spaced-apart pivot elements, in particular pivot levers, which in the installed position of the dual drive are each supported on the base body so as to be pivotable about a respective pivot axis, and which are each associated with at least one support part to be adjusted;   c) at least one electric motor driven drive unit is associated with each pivot element; and   d) a distance between the respective pivot axes is at least 620 mm.   
     
     
         2 . The dual drive according to  claim 1 , wherein:
 a) the distance between the pivot axes is approximately 640 mm or at least 640 mm.   
     
     
         3 . The dual drive according to  claim 1 , wherein:
 a) the base body is a housing.   
     
     
         4 . The dual drive according to  claim 1 , wherein:
 a) the base body has a brace-like design.   
     
     
         5 . The dual drive according to  claim 1 , wherein:
 a) each of the two pivot elements is fastened to the base body in a pivotably supported manner.   
     
     
         6 . The dual drive according to  claim 1 , wherein:
 a) each of the two pivot elements is a pivot lever that is pivotable by the associated output element in order to pivot the associated support part.   
     
     
         7 . The dual drive according to  claim 6 , wherein:
 a) the output element is linearly movable.   
     
     
         8 . The dual drive according to  claim 7 , wherein:
 a) the output element is a spindle nut which is rotationally fixed and situated on a threaded spindle so that the output element is movable in the axial direction, and which is in rotary drive connection with the at least one electric motor of the drive unit.   
     
     
         9 . The dual drive according to  claim 7 , wherein:
 a) the output element is a threaded spindle which is rotationally fixed and supported so as to be movable in its axial direction, and on which a stationary spindle nut, in rotary drive connection with an electric motor, is situated.   
     
     
         10 . The dual drive according to  claim 1 , wherein:
 a) the base body of the dual drive is one of a housing made of plastic and is provided with a housing.   
     
     
         11 . The dual drive according to  claim 10 , wherein:
 a) the housing is made up of two half-shells.   
     
     
         12 . The dual drive according to  claim 10 , wherein:
 a) support elements are formed on the ends of the housing, via which the housing rests on transversely extending braces of the support apparatus in the installed position of the dual drive.   
     
     
         13 . The dual drive according to  claim 12 , wherein:
 a) the support elements rest loosely on the braces in the installed position of the dual drive.   
     
     
         14 . An electric motor driven adjustable support apparatus for supporting padding of seating and/or lounging furniture, in particular a box spring mattress or an upholstered bed, wherein the support apparatus includes at least one electric motor driven dual drive according to  claim 1 .