Abstract: A treadmill device includes a seat having an oblong hole and a channel, a tread base having a front shaft movable up and down along the oblong hole of the seat, to adjust the tread base relative to the seat to different inclinations. An actuating device is coupled between the tread base and the seat and has a pivot axle slidably received in the channel of the seat. The actuating device may move the pivot axle along the channel of the seat, and to move the pivot shaft along the oblong hole of the seat, and to rotate the tread base to a folding position when the shaft is moved to the upper portion of the oblong hole of the seat, and when the pivot axle is moved to the front portion of the channel of the seat.

Abstract: A treadmill includes two rollers rotatably secured in a base, an endless belt engaged over the rollers, and a motor disposed in the base and coupled to one of the rollers for driving the endless belt. A shielding device is disposed between the motor and the endless belt for shielding the motor and for preventing the endless belt to carry dust to dirt the motor. The users may carry the dust onto the endless belt, and the dust may then be carried toward the motor, but may be shielded by the shielding device and may be prevented from dirtying the motor.

Abstract: An exerciser includes two foot supports pivotally secured to a base with a pivot shaft, and movable up and down relative to the base about the pivot shaft for conducting stepping exercises. Two casings are rotatably supported on the base and coupled to the foot supports with actuators. A pole is rotatably supported on the base and has two screws, two rotary members are threaded with the screws and coupled to the casings for rotating the casings relative to the base and for moving the foot supports laterally when the rotary members are moved along the pole by the screws.

Abstract: An exerciser includes two foot supports pivotally secured to a base with a pivot shaft, and movable up and down relative to the base about the pivot shaft for conducting stepping exercises. Two casings are rotatably supported on the base and coupled to the foot supports with actuators. A pole is rotatably supported on the base and has two screws, two rotary members are threaded with the screws and coupled to the casings for rotating the casings relative to the base and for moving the foot supports laterally when the rotary members are moved along the pole by the screws.

Abstract: An exerciser includes a pair of foot support movably supported on a base, a pair of bars pivotally secured to the base and each having an upper handle, and a pair of links and tracks movably coupled between the base and the bars. The bars each includes a slidable slide coupled to the foot supports. A motor is coupled to the slides for moving the slides along the bars to adjust the foot supports relative to the bars and to adjust the moving stride of the exerciser. A switch is coupled to the motor for actuating the motor while the bars are swung by the users.

Abstract: An exerciser includes a base, a control panel disposed on the base, a receiver device electrically coupled to the control panel, a handle, and a remote control device attached onto the handle, for allowing the remote control device to be operated by a hand of a user that holds the handle, and for allowing the remote control device to be easily operated by the users even when the users are actuating or operating the exercisers. The receiver device may be secured to various portions of the base. A seat may be supported on the base for supporting the user and the handle.

Abstract: A treadmill includes an endless belt disposed in a base and driven by such as a motor. A cushioning device is engaged in the endless belt and rotatably secured in the base with a shaft. One or more pads are disposed on the outer peripheral portion of the cushioning device and selectively rotatable toward the endless belt to cushion the endless belt by rotating the shaft relative to the base. The pads may be made of different cushioning materials, or different numbers of pads may be disposed on the shaft. The shaft may be rotated manually with a ferrule, or rotated with a motor.

Abstract: A treadmill includes two rollers rotatably secured in a base, an endless belt engaged over the rollers, and a motor disposed in the base and coupled to one of the rollers for driving the endless belt. A shielding device is disposed between the motor and the endless belt for shielding the motor and for preventing the endless belt to carry dust to dirt the motor. The users may carry the dust onto the endless belt, and the dust may then be carried toward the motor, but may be shielded by the shielding device and may be prevented from dirtying the motor.

Abstract: A treadmill includes an endless belt disposed in a base, a motor coupled to the endless belt for driving the endless belt and having a spindle, and a fan device secured to the spindle for being driven by the motor and having a number of blades for drawing air through the motor to dissipate a heat generated by the motor and for preventing the motor from being over-heated and damaged, and for increasing the working life of the motor. A wheel is secured to the spindle and secured to the fan device device for allowing the fan device to be driven by the motor via the wheel.

Abstract: An exerciser includes a base having a handle and having a post for supporting a seat which is secured on and supported on a support. A pair of bars have the lower ends pivotally secured to the post and have the upper ends pivotally secured to the support, such that the support and thus the seat may be adjusted forwardly and rearwardly relative to the post and the handle with the bars. A lock rod is engaged through the support and one of the bars for locking the support to the bars. The bars each has a stop engaged with the support for sustaining the support and the seat in place.

Abstract: A treadmill device includes two treadmills disposed above a base and each having a tread supported around a platform and each has one end rotatably supported on the base with a shaft which may be driven by a motor. An arm has a middle portion pivotally supported on the base and has two ends located below and coupled to the treadmills, for elevating one of the treadmills when the other treadmill is lowered, such that the two treadmills may be operated as a stepping exerciser. A latch may be used to lock the treadmills together.

Abstract: An exercizer includes a pair of rods having a front portion rotatably supported on a base with a pair of cranks and having a rear portion slidably supported on the base, a pair of bars pivotally secured to a front portion of the base, a pair of levers each having a foot support and having a front portion pivotally secured to the bars and each having a rear end slidably engaged on the rods, for allowing the foot supports to be moved in a reciprocating action. The rods are movably supported on the rear portion of the base such that the foot supports may be lowered.

Abstract: An exerciser includes a pair of tracks having a rear portion rotatably supported on a base with a pair of cranks, a pair of bars pivotally secured to a front portion of the base, a pair of levers each having a foot support and each having a front portion pivotally secured to the bars and each having a rear end slidably engaged on the tracks, for allowing the foot supports to be moved in a reciprocating action. The tracks are movably supported on the front portion of the base without being elevated, such that the foot supports may be lowered and stably supported on the base.

Abstract: An exerciser includes a pair of foot support movably supported on a base, a pair of bars pivotally secured to the base and each having an upper handle, and a pair of links and tracks movably coupled between the base and the bars. The bars each includes a slidable slide coupled to the foot supports. A motor is coupled to the slides for moving the slides along the bars to adjust the foot supports relative to the bars and to adjust the moving stride of the exerciser. A switch is coupled to the motor for actuating the motor while the bars are swung by the users.

Abstract: An exerciser includes a base having a front post and having a pair of cranks rotatably secured to the rear portion. A pair of bars are pivotally secured to the posts and each has a bottom pulley for supporting a track which is coupled to the cranks. A pair of levers have one end coupled to the bars and the other end slidably engaged on the tracks for supporting foot supports. A pair of slides are slidably received in the bars and coupled to the cranks. The bars each includes a rotatable bolt threaded with the slides for moving the slides along the bars when the bolts are rotated.

Abstract: An adjusting mechanism for an exerciser includes a seat and a frame secured on a base. A seat back is pivotally secured to the base at a pivot axle and includes a sector gear. A handle includes a shaft rotatably secured to the frame and having a pawl that is biased to engage with the sector gear of the seat back and to secure the seat back to the base at the selected angular position. A sleeve is secured on the shaft and the pawl is extended upward from the sleeve and a spring engaged with the sleeve to bias the pawl to engage with the sector gear of the seat back.

Abstract: A collapsible treader with enhanced stability including U-shaped front and rear frames forming a rectangular base frame, a substantially H-shaped frame secured at a bottom end of two side wings of an opening of the front frame, and a retention mechanism disposed at one side wing of said rear frame. The retention mechanism includes a rear wheel mounting bar adapted to contact the floor so that a retention bolt of a rod may urge against a bottom side of one side bar of the intermediate frame so that the entire base frame may be firmly supported on the floor without moving or shaking.

Abstract: A motor securing structure adapted for use in electric treadmills includes a securing seat adapted to support a motor. A lower end of the securing seat uses a pivot rod as a center of deflection, whereas an upper end of the securing seat cooperates with a rigid spring fitted on a securing pin so that they can displace on the securing pin. The structure ensures that a belt fitted on a pulley of the motor transmission shaft has a preferred tension and eliminates any vibration interference resulting from the interaction between the tread belt and the motor.

Abstract: A roaming exerciser includes a base having a bracket on which is mounted a resistance wheel, a vertical post fixedly installed on the base, a handle grip mounted on the post, a driven wheel connected to the resistance wheel via an endless belt, a pair of cranks connected to the driven wheel, a Z-shaped link having a lower end pivotally connected with an intermediate portion of the base, a pair of first and second oscillating links pivotally connected to an upper portion of the Z-shaped link, a pair of intermediate links pivotally connected to the first and second oscillating links, and a pair of pedal links pivotally connected to the intermediate links at one end and pivotally connected to the cranks at another end, whereby an user can have exercise in a smooth and natural action.