Patent ID: 6719666
Filing Date: 2004-04-13
Classification: A63B

Abstract:
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 on and extending upwardly from said front portion, and including lower and upper segments opposite to each other in an upright direction and respectively proximate to and distal from said front portion, and an intermediate segment interposed between said lower and upper segments; a rear mounting post disposed on and extending upwardly from said rear portion; a hand operated member mounted on and pivotable relative to said upper segment of said front mounting post about a first fulcrum axis, and including handle and lever portions disposed respectively at opposite sides of the first fulcrum axis, said lever portion being swung by said handle portion, extending downwardly, and terminating at a distal end; a first coupler member including a first front coupling end which is connected to said 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, said first intermediate portion proceeding with a first reciprocating movement when said lever portion is swung; a crank member including a crankpin which is pivoted to said first rear coupling end about a first pivot axis parallel to the first fulcrum axis, a crank arm which has a proximate arm end that is connected to said crankpin, and a distal arm end that extends from said proximate arm end radially relative to the first pivot axis, and a crankshaft which is pivoted to said distal arm end about a second pivot axis parallel to the first pivot axis and which is mounted on and which is rotatable relative to said rear mounting post about the second pivot axis; a lever member including a proximate lever end which is pivotally mounted relative to said intermediate segment of said front mounting post about a second fulcrum axis parallel to the first fulcrum axis, and a middle lever segment which extends from said proximate lever end and which terminates at a distal lever end; a second coupler member including a second front coupling end which is connected to said distal lever 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 being adapted to be treaded to proceed with a second reciprocating movement in the longitudinal direction, thereby swinging said middle lever segment of said lever member about the second fulcrum axis; a motion guiding member connected to said second rear coupling end of said second coupler member, and in slidable contact with said first intermediate portion of said first coupler member in the longitudinal direction so as to move relative to said first rear coupling end when said second intermediate portion of said second coupler member proceeds with the second reciprocating movement; and a synchronizing member disposed to couple said distal end of said lever portion with said middle lever segment of said lever member, such that the first and second reciprocating movements are synchronized in the direction of movement, thereby rendering said second coupler member to run along an elliptical path when said crank arm of said crank member rotates about the second pivot axis.