Ergometer

Abstract

The invention relates to an ergometer, preferably a bicycle ergometer, comprising a pedal arrangement ( 2 ) which is mounted in a frame ( 1 ); and an adjustable braking device ( 5 ) which optionally acts on a disk flywheel ( 4 ). The invention is characterised in that the two pedals ( 7, 8 ) of the pedal arrangement ( 2 ) are mounted independently of each other, excluding the transmission of force from one pedal to another.

1 . An ergometer, preferably a bicycle ergometer, comprising a pedal arrangement ( 2 ) which is mounted in a frame ( 1 ) and an adjustable braking device ( 5 ) which optionally acts on a disk flywheel ( 4 ), characterized in that the two pedals ( 7 ,  8 ) of the pedal arrangement ( 2 ) are mounted independently of each other, excluding the transmission of force from one pedal to another.  
     
     
         2 . An ergometer as claimed in  claim 1 , characterized in that a separate braking device ( 5 ) is provided for each pedal ( 7 ,  8 ) whose braking force can be controlled independent from each other.  
     
     
         3 . An ergometer as claimed in  claim 1  or  2 , characterized in that a torque sensor ( 9 ) and/or a tachometer generator ( 11 ) are situated on the crank axle ( 7 ′,  8 ′) of each pedal ( 7 ,  8 ), which sensor or generator is in connection with a computer unit ( 6 ) plus display device, preferably a monitor ( 10 ).  
     
     
         4 . An ergometer as claimed in  claim 1  to  3 , characterized in that the two pedals ( 7 ,  8 ) are arranged as crank handles.  
     
     
         5 . An ergometer as claimed in one of the  claims 1  to  4 , characterized in that an auxiliary motor ( 12 ) can be hooked up to each of the two pedals ( 7 ,  8 ), with the output of the motor ( 12 ) being controllable.  
     
     
         6 . An ergometer as claimed in  claim 5 , characterized in that each of the two auxiliary motors ( 12 ) can comprise an anti-spasm control unit which can be activated automatically during the occurrence of a sudden change in resistance.  
     
     
         7 . An ergometer as claimed in one of the  claims 1  to  6 , characterized in that one of the pedals ( 7 ) comprises a crank axle ( 7 ′) with a tubular projection ( 13 ) and the other pedal ( 8 ) a crank axle ( 8 ′) with a cylindrical projection ( 14 ), with the cylindrical projection ( 14 ) being rotatably held in the tubular projection ( 13 ).  
     
     
         8 . An ergometer as claimed in  claim 7 , characterized in that the two projections ( 13 ,  14 ) are provided with mutually flush radial bores ( 13 ′,  14 ′), with the pedal arrangement ( 2 ) being fixable in a 180° geometry by inserting a fixing screw into the radial bores.  
     
     
         9 . An ergometer as claimed in one of the  claims 3  to  8 , characterized in that the torque sensor ( 9 ) consists of a torsion ring ( 23 ) which is fastened to the crank axles ( 7 ′,  8 ′) and co-operates with a data sensor ( 24 ) which is preferably fixed to the chain guard ( 22 ).