Patent ID: 7381160
Filing Date: 2008-06-03
Classification: A63B

Abstract:
1. A treadmill comprising: a base having a through hole; a frame having a first end thereof pivotably connected to the base and having a first pivotal portion; an endless belt connected to the frame; a guide rod having its axis extending lengthwise of the frame and a first end of the guide rod non-pivotably fixed to the base, a second end of the guide rod non-pivotablt connected to the base at a position corresponding to the through hole; a sleeve extending through the through hole of the base and the guide rod inserted in the sleeve which moves along the guide rod back and forth, the sleeve having a second pivotal portion and the sleeve does not pivot relative to the base; a supporting rod having a first terminal end thereof pivotably connected to the second pivotal portion on the sleeve, a second terminal end of the supporting rod pivotably connected to the first pivotal portion of the frame; and a securing device connected to the sleeve and movable along with the sleeve so as to secure movement of the sleeve relative to the guide rod, the securing device including an engaging member which is pivotably connected to the sleeve by extending a pin though a hole defined in a first end of the engaging member and a second hole defined in the sleeve, the engaging member having a hook end at a second end thereof, a resilient member located between the engaging member and the sleeve so as to provide a force to lift the second end of the engaging member, and so that the hook end of the engaging member is capable of detachably securing to a hooked area in the base.