Folding rider exerciser

A riding exercise machine reconfigurable between a use configuration and a storage configuration, said riding machine comprising:

• a base having a guide surface associated therewith;
• feet means attached to said base for supporting said base on a support surface;
• user support means for supporting a riding user thereon, said user support means being rotatably attached to said base to be movable between a use configuration and a storage configuration, and in said use configuration to be moveable between a first position and a second position spaced from said first position;
• guide means rotatably connected to said user support structure to extend away therefrom and to contact said guide surface, said guide means being moveable between a use configuration and a storage configuration, and in said use configuration said guide means being movable between a first position when said user support means is in its first position and a second position when said user support means is in its second position;
• forward support structure having a lower end and an upper end, said lower end being attached to said base in said use configuration and being detached from said base and oriented toward alignment with said base in said storage configuration;
• a pull receiver rotatably attached to said forward support structure to be movable between a first position and a second position rotatably spaced from said first position;
• a push receiver rotatably adapted to said base for pushing movement by a riding user on said user support means from a first position in which said user support means is in its first position to a second position in which said user support means is hi its second position;
• handle structure having a handle portion for grasping and movement by a user riding on said user support means, said handle structure being mechanically associatable with said pull receiver to be moveable with said pull receiver from a use configuration to a storage configuration and when in said use configuration to be pullable from a first position when said pull receiver is in its first position to a second position when said pull receiver is in its second position, said second position of said handle structure being spaced toward said user support means from said first position of said handle and said handle structure being mechanically associatable with said push receiver to be moveable from a first position in which said push receiver is in its first position to a second position in which said push receiver is in its second position;
• attaching means associated with one of said handle structure and said pull receiver and said push receiver for removably attaching said handle structure to one of said push receiver and said pull receiver;
• synchronizing means extending between and connected to said pull receiver and to said guide means, said synchronizing means including,
• first connecting means having a first end and a second end, said first end being rotatably connected to said pull receiver and said second end being rotatably connected to said push receiver, said first connecting means connecting said pull receiver to said push receiver so that upon movement of said user support means from its first position to its second position, pull receiver moves from its first position to its second position;
• second connecting means having a first end and a second end, said first end being rotatably connected to said push receiver and said second end being rotatably connected to said guide means, said second connecting means connecting said push receiver to said guide means so that upon movement of said push receiver between its first position and its second position, said guide means moves from its first position to its second position;
• and
• wherein said synchronizing means is disconnected from said guide means in said storage configuration and is connected in said use configuration.