Foldable abdominal and thigh exercise machine

Abstract

A foldable abdominal and thigh exercise machine comprising a base frame, a seat frame connected to the base frame at a first pivot, an arm connecting to the base frame at a second pivot that connects the arm to the base frame, a lifting link at an arm pivot, wherein the lifting link is connected to the seat frame at a lifting pivot, wherein, when a user pushes the arm, force is transmitted to lift the seat frame via the lifting link connected at the lifting pivot on the seat frame. The exercise machine also comprises a support connected at a support pivot mounted on the base frame and a slider that is slidingly mounted on the seat frame and connected to the lifting link by the lifting pivot, wherein the location of the lifting pivot relative to the seat frame is adjusted by the location of the slider on the seat frame.

1 . An exercise machine comprising:
 a base frame;   a seat frame connected to the base frame at a first pivot;   an arm connecting to the base frame at a second pivot that connects the arm to the base frame;   a lifting link at an arm pivot, wherein the lifting link is connected to the seat frame at a lifting pivot;   wherein, when a user pushes the arm, force is transmitted to lift the seat frame via the lifting link connected at the lifting pivot on the seat frame.   
   
   
       2 . The exercise machine of  claim 1 , further comprising: a seat pad mounted to the seat frame on a seat pad pivot on the seat frame, wherein the seat pad has a seat lever pivot supporting a seat lever on the seat frame. 
   
   
       3 . The exercise machine of  claim 1 , further comprising a support connected at a support pivot mounted on the base frame, wherein the support is connected to the base frame at the support pivot. 
   
   
       4 . The exercise machine of  claim 1 , further comprising: a slider that is slidingly mounted on the seat frame and connected to the lifting link by the lifting pivot, wherein the location of the lifting pivot relative to the seat frame is adjusted by the location of the slider on the seat frame. 
   
   
       5 . The exercise machine of  claim 4 , further comprising: a pin connected with an engagement member formed on the seat frame. 
   
   
       6 . The exercise machine of  claim 5 , further comprising holes formed on the seat frame, wherein the engagement member is a pop-up pin connecting to the holes. 
   
   
       7 . The exercise machine of  claim 5 , wherein the engagement member is a set screw tightening against the seat frame. 
   
   
       8 . The exercise machine of claim one, wherein the arm folds up to a stowed position for device storage. 
   
   
       9 . The exercise machine of claim one, further comprising an elastic resistance member connected between the seat frame and the base frame. 
   
   
       10 . An exercise machine comprising:
 a base frame;   a seat frame connected to the base frame at a first pivot forming a main angle between the seat frame and base frame;   an arm connecting to the base frame at a second pivot that connects the arm to the base frame, forming an arm angle between the arm and base frame;   a lifting link at an arm pivot;   wherein, when a user pushes the arm increasing the arm angle, the main angle also increases;   a seat pad mounted to the seat frame on a seat pad pivot on the seat frame, wherein the seat pad has a seat lever pivot supporting a seat lever on the seat frame;   a support connected at a support pivot mounted on the base frame, wherein the support is connected to the base frame at the support pivot.   
   
   
       11 . The exercise machine of  claim 10  further comprising: a pin connected with an engagement member formed on the seat frame. 
   
   
       12 . The exercise machine of  claim 10 , further comprising holes formed on the seat frame, wherein the engagement member is a pop-up pin connecting to the holes. 
   
   
       13 . The exercise machine of  claim 10 , wherein the engagement member is a set screw tightening against the seat frame. 
   
   
       14 . The exercise machine of  claim 10 , wherein the arm folds up to a stowed position for device storage. 
   
   
       15 . The exercise machine of  claim 10 , further comprising an elastic resistance member connected between the seat frame and the base frame. 
   
   
       16 . An exercise machine comprising:
 a base frame;   a seat frame connected to the base frame at a first pivot, forming a main angle between the seat frame and base frame;   an arm connecting to the base frame at a second pivot that connects the arm to the base frame, forming an arm angle between the arm and base frame;   a lifting link at an arm pivot;   a lifting link at an arm pivot, wherein the lifting link is connected to the seat frame at a lifting pivot;   wherein, when a user pushes the arm, force is transmitted to lift the seat frame via the lifting link connected at the lifting pivot on the seat frame, wherein, when a user pushes the arm increasing the arm angle, the main angle also increases;   a pin connected with an engagement member formed on the seat frame;   wherein the engagement member is a set screw tightening against the seat frame;   wherein the arm folds up to a stowed position for device storage; and   a seat pad mounted to the seat frame on a seat pad pivot on the seat frame, wherein the seat pad has a seat lever pivot supporting a seat lever on the seat frame;   a support connected at a support pivot mounted on the base frame, wherein the support is connected to the base frame at the support pivot.   
   
   
       17 . The exercise machine of  claim 16 , further comprising an elastic resistance member connected between the seat frame and the base frame. 
   
   
       18 . The exercise machine of  claim 16 , wherein the arm is formed as a telescoping member extendable from a retracted position to an extended position allowing a user different body exercises.