Walking exerciser having a treadmill-body inclination adjustment mechanism

A walking exerciser comprising:

• a supporting member including
• a horizontal frame with front and rear portions, and
• an upright frame disposed on and extending uprightly from said horizontal frame;
• a treadmill body attached to and disposed over said horizontal frame, and having a front section and a rear section;
• and
• an inclination adjustment mechanism including
• two rear links which have upper ends, and lower ends that are mounted pivotally on said rear portion of said horizontal frame and that are inclined forwardly and upwardly, said rear links being secured to each other,
• two horizontal first pivots extending through said upper ends of said rear links and attached to said treadmill body, thereby connecting said rear links rotatably to said treadmill body,
• two front links which have lower ends, and upper ends that are sleeved rotatably on said horizontal first pivots, respectively, and that are inclined forwardly and downwardly,
• two slide slots formed in said supporting member and extending rearwardly from said front portion of said horizontal frame to said rear portion of said horizontal frame,
• two sliding members fixed respectively to said lower ends of said front links and received respectively and slidably within said slide slots in said supporting member,
• a connecting member interconnecting said front links fixedly,
• a movable tube having a rear end that is connected pivotally to said connecting member, and a front end surface that is formed with a threaded hole in said tube,
• a threaded rod which has a rear end portion that engages threadedly said threaded hole in said tube, and a front end portion,
• a horizontal second pivot disposed to extend in a direction parallel to said first pivots, said second pivot passing through said front end portion of said threaded rod and connecting said threaded rod rotatably to said treadmill body such that said treadmill body can be folded manually on said upright frame, and
• a drive unit disposed on one of said supporting member and said treadmill body and connected operably to said threaded rod for rotating said threaded rod;
• and
• whereby, when said threaded rod is rotated to move said tube relative to said threaded rod, said sliding members move within said slide slots in said supporting member so as to move said lower ends of said front links toward and away from said lower ends of said rear links, thereby adjusting inclination of said treadmill body with respect to said horizontal frame of said supporting member.