Foldable sliding belt gymnastic machine

Abstract

The present invention concerns a gymnastic machine of the type having a sliding belt comprising a base structure, having a frame, on which a closed circuit sliding belt is installed for gymnastic exercises, a supporting structure rotatably coupled with said base structure, characterized in that said gymnastic machine comprises a closing and moving group, comprising a trolley, rotatably coupled with said frame of said base structure, capable to assume a first position, corresponding to the opening position of said gymnastic machine, wherein said trolley is substantially parallel to said base structure, and a second position, corresponding to the closing position of said gymnastic machine, wherein said trolley is rotated with respect to said base structure, so as to lift and rotate it with respect to said supporting structure, arranging close to it; and actuator means, capable to allow the moving of said trolley from said first position to said second position and vice versa.

1 . Gymnastic machine of the type having a sliding belt comprising:
 a base structure, having a frame, on which a closed circuit sliding belt is installed for gymnastic exercises,   a supporting structure rotatably coupled with said base structure,   characterized in that said gymnastic machine comprises a closing and moving group, comprising a trolley, rotatably coupled with said frame of said base structure, capable to assume a first position, corresponding to the opening position of said gymnastic machine, wherein said trolley is substantially parallel to said base structure, and a second position, corresponding to the closing position of said gymnastic machine, wherein said trolley is rotated with respect to said base structure, so as to lift and rotate it with respect to said supporting structure, arranging close to it; and actuator means, capable to allow the moving of said trolley from said first position to said second position and vice versa.   
     
     
         2 . Gymnastic machine according to  claim 1  characterized:
 in that said base structure comprises a covering carter of said frame, which has a front portion provided with an abutment surface, on which said sliding belt gymnastic machine abuts when it is in said closing position, and 
 in that during the transition from said opening position to said closing position, said base structure and said supporting structure move relatively to each other, so that the barycenter of said gymnastic machine describes a locus of points, whose vertical projections fall within said abutment surface or close to the same. 
 
     
     
         3 . Gymnastic machine according to  claim 1 , characterized in that said actuator means comprise a nut screw coupled with said trolley, and a lead nut engaged with said nut screw. 
     
     
         4 . Gymnastic machine according to  claim 1 , characterized:
 in that said trolley comprises a first and a second supporting bar, substantially parallel arranged, on each one of said first and second supporting bar a guide is obtained, a first and a second sliding pin, each sliding in one respective of said guides of said first and second supporting bar and a coupling and rotating bar, rotatably coupled with said frame, said first and second supporting bar being fixed to said coupling and rotating bar,   in that said nut screw has an end fixed to said coupling and rotating bar, and   in that said first and second sliding pin are fixed to said lead nut.   
     
     
         5 . Gymnastic machine according to  claim 3 , characterized in that said actuator means also comprise a motor member, to operate said nut screw. 
     
     
         6 . Gymnastic machine according to  claim 4 , characterized in that said closing and moving group comprises a first couple of supporting arms, wherein each arm of said first couple of supporting arms has a first end rotatably coupled with said frame and a second end rotatably coupled with one respective of said first and second sliding pin. 
     
     
         7 . Gymnastic machine according to  claim 4 , characterized in that said closing and handling group comprises a second couple of supporting arms, wherein one arm of said second couple of supporting arms has a first end rotatably coupled with said supporting structure and a second end coupled with said coupling and rotating bar, by a crank. 
     
     
         8 . Gymnastic machine according to  claim 1 , characterized:
 in that said frame comprises a couple of longitudinal side members on which said sliding belt is installed, and   in that said supporting structure comprises a couple of uprights parallel arranged and rotatably coupled with one respective longitudinal side member of said frame.   
     
     
         9 . Gymnastic machine according to  claim 1 , characterized in that each of said couple of longitudinal side members is provided with a recess to partially or entirely accommodate respectively each arm of said second couple of supporting arms, during the closing of said gymnastic machine. 
     
     
         10 . Gymnastic machine according to  claim 8 , characterized:
 in that each one of said longitudinal side members has a respective through slot, and   in that each one of said uprights comprises a first coupling pin, rotatably coupled with the respective longitudinal side member, and a second coupling pin, slidingly coupled with a respective through slot of each of said longitudinal side members.   
     
     
         11 . Gymnastic machine according to  claim 1 , characterized in that each arm of said second couple of supporting arms has a first end rotatably coupled with one respective of said first and second uprights by one respective pin of said second coupling pins. 
     
     
         12 . Gymnastic machine according to  claim 4 , characterized:
 in that it comprises two lifting wheels fixed to said frame, to lift said base structure when said gymnastic machine is operating,   in that it comprises rollers fixed to said first and second supporting bar, and   in that said gymnastic machine is placed on said two lifting wheels and said rollers during the transition from said opening position to said closing position.