Gymnastic machine

Abstract

A gymnastic machine ( 1 ) includes a frame ( 10 ), a load group ( 20 ), and at least one gymnastic implement ( 30 ) suitable to exchange energy with the load group ( 20 ) through at least one box-shaped lever ( 42 ) having a transverse cross-section (S) of predetermined shape and longitudinally adjustable width, with a respective lateral profile (PL) having a height decreasing according to a direction of travel that leads to the respective implement ( 30 ).

1 . A gymnastic machine ( 1 ) comprising a frame ( 10 ), load means ( 20 ) supported by said frame ( 10 ), at least a gymnastic implement ( 30 ) which presents a first given transverse length (D) and is suitable to exchange energy with said load means ( 20 ) by means of transmission means ( 40 ); said transmission means ( 40 ) comprising at least a box—shaped lever ( 42 ) and coupling means ( 45 ) being provided for connecting each said lever ( 42 ) to said frame ( 10 ) by means of a pivot pin ( 60 ); characterised in that each said lever ( 42 ) is provided with at least a segment ( 468 ) which presents transverse cross-section (S) of given shape and longitudinally adjustable width so that to each said segment ( 468 ) corresponds a lateral profile (PL) which presents at least a maximum according to direction of travel that goes from said pivot pin ( 60 ) to said implement ( 30 ). 
   
   
       2 . A machine according to  claim 1 , characterised in that said transverse cross-section (S) presents polygonal shape. 
   
   
       3 . A machine according to  claim 2 , characterised in that said transverse cross-section (S) presents substantially rectangular shape. 
   
   
       4 . A gymnastic machine according to  claim 1 , characterised in that each said segment ( 468 ) presents transverse cross-section (S) of longitudinally adjustable width in a substantially homothetic manner. 
   
   
       5 . A gymnastic machine according to  claim 1 , characterised in that said lever ( 42 ) presents transverse cross-section (S) of longitudinally adjustable height. 
   
   
       6 . A machine according to  claim 1 , characterised in that each said segment ( 468 ) is substantially rectilinear. 
   
   
       7 . A gymnastic machine according to  claim 1 , characterised in that said lever ( 42 ) presents transverse cross-section (S) of substantially constant width. 
   
   
       8 . A gymnastic machine according to  claim 5 , characterised in that said lever ( 42 ) presents transverse cross-section (S) of substantially constant width. 
   
   
       9 . A gymnastic machine according to  claim 1 , characterised in that each said lever ( 42 ) presents said respective pivot pin ( 60 ) in a first end portion ( 43 ) and carries a said respective implement ( 30 ) at the opposite side from said pivot pin ( 60 ) and in correspondence of a respective free second end portion ( 44 ). 
   
   
       10 . A gymnastic machine according to  claim 1 , characterised in that said lever ( 42 ) presents at least two segments ( 468 ) mutually connected by means of a respective elbow ( 48 ), in correspondence of which said lever ( 42 ) laterally supports an elongated member ( 49 ) provided for carrying free weights ( 80 ); said segments ( 468 ) presenting the respective maximum values of the respective transverse cross-sections (S) in said respective elbow ( 48 ) 
   
   
       11 . A machine according to  claim 10 , characterised in that one of said segments ( 468 ) presents lateral profile (PL) of height increasing according to a direction of travel that goes from said pin ( 60 ) to said implement ( 40 ). 
   
   
       12 . A gymnastic machine according to  claim 9 , characterised in that said coupling means ( 45 ) incorporate at least a first bush ( 70 ) in correspondence of said first end portion ( 43 ) of said lever ( 42 ) to house said pivot pin ( 60 ) in a freely rotatable manner. 
   
   
       13 . A gymnastic machine according to  claim 12 , characterised in that said first bush ( 70 ) presents transverse extension substantially identical to the extension of said first end portion ( 43 ) in order to minimise the torsional load on said pivot pin ( 60 ). 
   
   
       14 . A gymnastic machine according to  claim 1 , characterised in that said lever ( 42 ) comprises at least a base element ( 462 ) presenting longitudinally open cross-section and closed by a cover ( 464 ) coupled to said respective base element ( 462 ) by means of a welded connection. 
   
   
       15 . A machine according to  claim 14 , characterised in that each said base element ( 462 ) presents longitudinally open and substantially C-shaped cross-section. 
   
   
       16 . A machine according to  claim 12 , characterised in that said first bush ( 70 ) is rigidly connected to said first end portion ( 43 ) by means of a welded connection on a respective external shell. 
   
   
       17 . A machine according to  claims 9 , characterized in that said implement ( 30 ) is housed inside a respective second bush ( 74 ) shaped coupled and rigidly connected to said second end portion ( 44 ) by means of a welded connection on a respective external shell. 
   
   
       18 . A box-shaped lever ( 42 ) for a gymnastic machine ( 1 ) described with reference to any one of  claims 1  to  21 ; characterised by being provided with at least a segment ( 468 ) presenting transverse cross-section (S) of given shape and longitudinally adjustable width so that to each said segment ( 468 ) corresponds a lateral profile (PL) which presents at least a maximum thereof according to a direction of travel that goes from said pivot pin ( 60 ) to said implement ( 30 ). 
   
   
       19 . A lever according to  claim 18 , characterised in that one of said segments ( 468 ) presents lateral profile (PL) of height increasing according to a direction of travel that goes from said pivot pin ( 60 ) to said implement ( 30 ).