Patent ID: 7182714
Filing Date: 2007-02-27
Classification: A63B

Abstract:
1. An elliptical exercise machine comprising: a frame; at least two crankshafts rotationally connected to said frame; a left rail attached to both of said crankshafts so that said left rail traverses a path in conjunction with the rotation of said crankshafts; a right rail attached to both of said crankshafts so that said right rail traverses a path in conjunction with the rotation of said crankshafts; a left pendulum arm, connected to said frame at a first rotational axis to said frame, and operatively connected to at least one of said crankshafts such that said left pendulum arm reciprocates within a first arc segment as said at least one of said crankshafts rotates; a right pendulum arm, connected to said frame at said first rotational axis to said frame, and operatively connected to at least one of said crankshafts such that said right pendulum arm reciprocates within a second arc segment as said at least one of said crankshafts rotates; a left footskate, said left footskate capable of reciprocating movement on said left rail; a right footskate, said right footskate capable of reciprocating movement on said right rail; a left adjustment arm, said left adjustment arm connected to said frame at a second rotational axis, said left adjustment arm being operationally attached to said left footsake via an interface located toward the distal end of said left adjustment arm so that reciprocation of said left adjustment arm through a third arc segment is translated into said reciprocating movement of said left footskate; and right adjustment arm, said right adjustment arm connected to said frame at a second rotational axis, spaced from said first rotational axis, said right adjustment arm being operationally attached to said right footskate via an interface located toward the distal end of said right adjustment arm so that reciprocation of said right adjustment arm through a fourth arc segment is translated into said reciprocating movement of said right footskate; a left coupler connecting said left adjustment arm to said left pendulum arm so that when said left pendulum arm reciprocates about said first rotational axis, said left adjustment arm is forced to reciprocate about said second rotational axis; said left coupler being spaced a first distance from said first axis and a second distance from said second axis; a right coupler connecting said right adjustment arm to said right pendulum arm so that when said right pendulum arm reciprocates about said first rotational axis, said right adjustment arm is forced to reciprocate about said second rotational axis; said right coupler being spaced said first distance from said first axis and said second distance from said second axis; and wherein, at least one of said first distance and said second distance is variable.