Exercising device

An exercising device comprising:

• a base support adapted to be placed on a ground, and having front and rear portions opposite to each other in a longitudinal direction;
• a front mounting post disposed to extend upwardly from said front portion, and including lower and upper segments respectively proximate to and distal from said front portion, and an intermediate segment interposed between said lower and upper segments;
• a hand operated member mounted on and pivotable relative to said upper segment about a first pivoting axis, and including handle and lever portions disposed respectively at opposite sides of the first pivoting axis, said lever portion extending downwardly and terminating at a first distal end;
• a first coupler member including a first front coupling end which is connected to said first distal end, and a first intermediate portion which extends rearwardly from said first front coupling end and which terminates at a first rear coupling end;
• a first crank member including
• a first crankpin having a first proximate pin end which is pivoted to said first rear coupling end, and a first distal pin end which extends from said first proximate pin end along a second pivoting axis parallel to the first pivoting axis,
• a first crank arm having a first proximate arm end which is connected to said first distal pin end, and a first distal arm end which extends from said first proximate arm end radially relative to the second pivoting axis, and
• a first crankshaft having a first proximate shaft end which is pivoted to said first distal arm end about a third pivoting axis parallel to the second pivoting axis, and a first distal shaft end which extends from said first proximate shaft end along the third pivoting axis;
• a lever member including a proximate end which is pivotally mounted relative to said intermediate segment about a fourth pivoting axis parallel to the first pivoting axis, and a middle portion which extends from said proximate end and terminating at a second distal end;
• a linking bar having right and left linking ends which are respectively connected to said first distal end of said lever portion and said middle portion of said lever member, such that when said lever portion is moved by said handle portion to swing about the first pivoting axis, said middle portion will be driven by said linking bar to swing about the fourth pivoting axis;
• a second coupler member including a second front coupling end which is connected to said second distal end of said lever member, and a second intermediate portion which extends rearwardly from said second front coupling end and which terminates at a second rear coupling end, said second intermediate portion proceeding with a reciprocating movement in the longitudinal direction when said middle portion of said lever member swings;
• a rear mounting post disposed on and extending from said rear portion uprightly;
• a second crank member including
• a second crankshaft having a second proximate shaft end which is mounted on and which is rotatable relative to said rear mounting post about a fifth pivoting axis parallel to the second pivoting axis, and a second distal shaft end extending from said second proximate shaft end along the fifth pivoting axis,
• a second crank arm having a second proximate arm end which is connected to and which rotates with said second distal shaft end about the fifth pivoting axis, and a second distal arm end which extends from said second proximate arm end radially relative to the fifth pivoting axis, and
• a second crankpin having a second proximate pin end which is connected to said second distal arm end, and a second distal pin end which extends from said second proximate pin end along a sixth pivoting axis parallel to the fifth pivoting axis and which faces towards said first distal shaft end;
• and
• a motion guiding member disposed underneath and in friction contact with said second rear coupling end of said second coupler member, and having right and left ends which are respectively journalled on said second distal pin end and said first distal shaft end, such that while said second intermediate portion of said second coupler member proceeds with the reciprocating movement, and while said motion guiding member is dragged by the reciprocating movement through the friction contact to move said second crank arm together with said second crankshaft to rotate about the fifth pivoting axis, said first distal shaft end remains to be supported by said motion guiding member through journaling of said first distal shaft end.