Patent ID: 7413529

Claim:
A treadmill comprising: a support base having a front end, a rear end, and an upright frame extending upward from said support base adjacent said front end; a tread base carrying an endless belt and having a bottom side and a top side; a front leg frame attached to said tread base and connected pivotally to said support base adjacent said front end of said support base; a connecting arm having a lower end fixedly connected to said front leg frame and an upper end which extends upwardly; an inclining unit including a motor mounted on said tread base at said top side, a screw rod connected to said motor at said top side, and a threaded sleeve disposed movably around said screw rod and connected to said upper end of said connecting arm; and a hydraulic telescopic unit having a rear end pivoted to said support base and a front end connected directly and pivotally to said front leg frame, said hydraulic telescopic unit being extendable and retractable.