Abstract: A buffering structure is coupled to a treadmill to buffer an action route of a support device. The buffering structure comprises a rockshaft and a buffering cushion. The rockshaft is mounted on the bottom of the support device and pivotally connected to the treadmill. The buffering cushion is connected to the outer surface of the rockshaft. The rockshaft and the buffering cushion are able to buffer the action route of the support device. As a result, the buffering structure of the present invention has simple configuration and low cost, and it is able to adjust the buffer route and not easy to get damaged.

Abstract: A waist trimmer adaptable for use in homes, gyms, organizations, or schools, comprising a base frame which has a left arched tube and a right arched tube, a positioning mechanism mounted to front top ends and rear top ends of the left arched tube and the right arched tube of the base frame for a human body to lie thereon, and an exercise mechanism mounted to an upper side of a transverse tube located at front ends of the left arched tube and the right arched tube of the base frame. Additionally, A cradle dock is located between the left and the right arched tube, and a damper is bridged the cradle dock and a bucking tube located at a left side of the exercise mechanism to allow a waist roller moving down slowly without dropping abruptly to avoid incurring uncomfortable impact feeling to the user.

Abstract: An oval orbit exercise bike comprises a flywheel locked to an upright post of a front portion of a base frame by an axle through central bore. On both sides of the base frame, there are two sets of exercise devices, each of which comprises a pedal, handlebar and linkage mechanism composed of the first and second link active link rods, fixed link rod and crankshaft. When the pedal is pushed downward, force applied reacts on the first and second active link rods, causing the flywheel to rotate around the central bore. Simultaneously, the crankshaft and fixed link rod pivoted on the first active link rod cause the handlebar to produce back and forth swings. The pedal, with the first and second active link rods pivoted on it, makes movement around an oval orbit, causing the handlebar to swing, thus providing human body with relaxation and comfort.

Abstract: A method of generating surround sound with channels processing separately includes steps of transmitting left and right channel signals separately to a first multiple frequency phase shift processor, a pre-set equalizer and a second multiple frequency phase shift processor without addition and subtraction thereby providing a stereo sound position enhancement processing, transmitting left and right space signals separately to two multiple frequency phase shift processors, two stereo signal difference processors and a pre-set equalizer to provide a surround sound enhancement processing, and transmitting left channel signals, left space signals, right channel signals and right space signals separately to respective variable amplifiers to adjust output amplitude after the sound position enhancement processing and the surround sound enhancement processing and then summing up output signals to obtain three dimensional effect enhancement.