Abstract: A buffer structure of a treadmill includes a load board, two side rods and two tooth racks. The two side rods includes a pair of hand wheels and a pair of gear wheels which are respectively located central sections of the two side rods and connected by a link rod, and a pair of fixing rods disposed under the link rod. The two tooth racks includes toothed portions at upper ends thereof to mesh with the gear wheels, fixing posts at inner sides thereof for insertion of the hollow cylinders, fixing bolts screwed to the fixing posts, and two slots at two sides of the fixing bolts. The two slide bolts are inserted through two through holes of the two side rods and the two slots and connected with nuts and washers. A gap is formed between the tooth racks and the side rods for slide.

Abstract: A buffer board for a treadmill includes a bamboo strip portion and an endurable slide plate. The bamboo strip portion is composed of at least one longitudinal bamboo strip and at least one transverse bamboo strip. The longitudinal bamboo strip and the transverse bamboo strip are crosswise knitted to constitute a woven bamboo plate. The woven bamboo plate can be stacked one by one to constitute a stack of woven bamboo plates in a desired thickness for enhancing the strength of the buffer board. The longitudinal bamboo strips connected side by side and the transverse bamboo strips connected side by side are stacked up to constitute a laminated bamboo board. The upper woven bamboo plate or the laminated bamboo board is attached with the endurable slide board. After being applied with a press force, the surface of the endurable slide board is formed with concave-convex massage pattern according to the pattern of the woven bamboo plate or the laminated bamboo board.

Abstract: A buffer board for a treadmill includes a bamboo strip portion and an endurable slide plate. The bamboo strip portion is composed of at least one longitudinal bamboo strip and at least one transverse bamboo strip. The longitudinal bamboo strip and the transverse bamboo strip are crosswise knitted to constitute a woven bamboo plate. The woven bamboo plate can be stacked one by one to constitute a stack of woven bamboo plates in a desired thickness for enhancing the strength of the buffer board. The longitudinal bamboo strips connected side by side and the transverse bamboo strips connected side by side are stacked up to constitute a laminated bamboo board. The upper woven bamboo plate or the laminated bamboo board is attached with the endurable slide board. After being applied with a press force, the surface of the endurable slide board is formed with concave-convex massage pattern according to the pattern of the woven bamboo plate or the laminated bamboo board.

Abstract: An exerciser includes a main frame with a swinging unit connected to an end thereof and a transmission unit is connected to the other end of the main frame. The transmission unit has an eccentric member connected thereto. The connection unit is pivotably connected to the swinging unit and a seat unit is connected to the connection unit. The connection unit has an extension link which is pivotably connected with the eccentric member. When the users tread the pedals connected with the transmission unit, the eccentric member, the connection unit and the swinging unit are activated so as to move the seat unit in multiple directions.

Abstract: An elliptical exerciser includes two side tubes on two sides of the base and two guiding rails are pivotably connected to the two side tubes respectively. Two connection rods are connected to two ends of the crank on the wheel and each connection rod has a roller which is movably engaged with one of the guiding rails. Two pedals are connected to the two connection rods. The angle between the two guiding rails can be adjusted so that the users may operate the elliptical exerciser in a skiing or twisting way.

Abstract: A cushion device for treadmills includes a frame with two rails and a deck has an end pivotably connected to two respective first ends of the two rails of the frame. Two tubes are connected to the two rails of the frame and two activation rods axially extend in the two tubes and are restrained to only can spin relative to the tubes. Each of the two activation rods has a nut member threadedly connected thereto and a slide member is slidably mounted thereto. A spring is mounted to each of the two activation rods and biased between the nut member and the slide member. Two cables have two respective first ends fixed to the slide members and two respectively second ends of the two cables extend through each tube, reeve through the lower pulley and the upper pulley and are fixed to the first end of the deck.

Abstract: An elliptical exerciser includes two side tubes on two sides of the base and two guiding rails are pivotably connected to the two side tubes respectively. Two connection rods are connected to two ends of the crank on the wheel and each connection rod has a roller which is movably engaged with one of the guiding rails. Two pedals are connected to the two connection rods. The angle between the two guiding rails can be adjusted so that the users may operate the elliptical exerciser in a skiing or twisting way.

Abstract: A treadmill includes a base, a frame with an endless belt pivotably connected to the base, two upright supports connected to two sides of the base, a board pivotably connected to the two supports. The board has two first leg assemblies and two second leg assemblies connected to a surface thereof. The first leg assemblies are pivotably connected to the two supports so that the board is pivoted downward and secured to the supports. The board is used as a table top.

Abstract: An exercise device includes a frame with a front wheel and two rear wheels which are connected to a shaft. A driving mechanism for driving the rear wheels is connected to an operation device such as two pedals, two twist pads or an endless belt so that the exercise device is driven forward when the user operates the operation device. The driving mechanism includes a uni-direction gear mounted to the shaft, a rack having an end connected to an operation device and the other end of the rack connected to a link connected to the operation device.

Abstract: A cushion device for treadmills includes a frame with two rails and a deck has an end pivotably connected to two respective first ends of the two rails of the frame. Two tubes are connected to the two rails of the frame and two activation rods axially extend in the two tubes and are restrained to only can spin relative to the tubes. Each of the two activation rods has a nut member threadedly connected thereto and a slide member is slidably mounted thereto. A spring is mounted to each of the two activation rods and biased between the nut member and the slide member. Two cables have two respective first ends fixed to the slide members and two respectively second ends of the two cables extend through each tube, reeve through the lower pulley and the upper pulley and are fixed to the first end of the deck.

Abstract: A magnetic resistance device includes a coil member fixed to a shaft and enclosed by a ring member so that the coil member is rotatable relative to the ring member. The ring member is clamped between a fly wheel and a cap. Two bearings are respectively mounted to the shaft and engaged with the fly wheel and the cap. A driving sleeve has a first end inserted in a central hole in the fly wheel and a one-direction bearing is mounted to the first end of the driving sleeve and engaged with the central hole of the fly wheel. A second end of the driving sleeve extends beyond a side of the fly wheel so as to connected to a driving power source via a belt. The coil member is powered by electric power and generates magnetic resistance force when it has relative movement to the ring member.

Abstract: An exercising device includes an exercising assembly such as a bicycle exerciser which is electronically connected to a video game device, and a control device is connected to the exercising assembly so as to receive information of heart rate of users. A plurality of response devices are connected to the exercising assembly and controlled by the controlling device. The response devices are activated according to the information of heart rate of users and information from the video game device. The response devices may provide air flow, oxygen, negative ion, and adjust the resistant force of the exercising assembly.

Abstract: A surfing exerciser includes a base on the floor and a motor is disposed on the base with a wheel connected to an end of the motor and driven by the motor. A fame is disposed on the base and an arm has a first end pivotably connected to the frame. A second end of the arm is pivotally connected to a first end of a link, and a second end of the link is eccentrically pivotably connected to the wheel. A board is pivotably connected to the link so that a user stands on the board and the board is moved along a ?-shaped path when the motor is activated.

Abstract: A treadmill includes a base having two side rails and two posts extend from the two side rails. Two transverse bars are connected between the two side rails. Two guide members are connected between the two transverse bars and a motor is fixed to the base. A frame of the running belt is located between the two side rails of the base and a connection board is connected between two sides of the frame. Two connection plates are respectively connected to the two sides of the frame and pivotably connected to the posts. A movable member is driven by the motor and movable on the two guide members. Two arms connected to the movable member are pivotably connected to the connection board so that when the movable member is moved, the frame pivoted by the arms.

Abstract: A surfing exerciser includes a base on the floor and a motor is disposed on the base with a wheel connected to an end of the motor and driven by the motor. A frame is disposed on the base and an arm has a first end pivotably connected to the frame. A second end of the arm is pivotally connected to a first end of a link, and a second end of the link is eccentrically pivotably connected to the wheel. A board is pivotably connected to the link so that a user stands on the board and the board is moved along a ?-shaped path when the motor is activated.

Abstract: A magnetic resistance adjusting device of a stationary bicycle includes a plate pivotably connected to a frame of the bicycle and a plurality of magnetic pieces are attached on a side of the plate. The magnetic pieces are located to face a side of a periphery of an aluminum wheel of the bicycle. The plate is connected to a pulling member which pivots the plate so as to adjust a number of the magnetic pieces that face the aluminum wheel. A guide member is located on the base and the plate is guided by the guide member when the plate is pivoted such that a gap between the aluminum wheel and the plate is unchanged.

Abstract: An air resistance force generating device for exercisers includes a tubular casing driven by the user and having a shaft rotatably received therein. A plurality of frames extend radially outward from the casing and each frame is a closed frame so as to enclose a through space. A plurality of blades each have one end thereof reeving through the shaft and the other end of the each blade is slidably received in the frame corresponding thereto. An adjusting member is connected to an end of the casing and the shaft has an end fixed to the adjusting member so that the blades can be wrapped around the shaft by rotating the adjusting member.

Abstract: A An oxygen generating device includes a container having a first side portion, a second side portion and an intermediate portion which is lower than the two side portions. Each of the first side portion, the second side portion and the intermediate portion has a top. A first pipe extends through the top of the first side portion and a second pipe extends through the top of the second side portion. The container is filled with water and the first pipe is lead to the users. A positive electrolytic post is inserted in the first side portion and a negative electrolytic post is inserted in the second side portion. A power source is connected to the positive electrolytic post and the negative electrolytic post. The oxygen is generated by the electrolytic process and sent to the users.

Abstract: A treadmill includes a base having two side rails and each side rail has a passage defined therethrough. A frame having two sides are connected between the two side rails and a running belt reeves around two ends of the frame. Two collars are respectively movably received in the two passages and each collar has two first spiral ramps located on different surfaces. Two pins movably respectively extend through the two collars and are fixed to the two sides of the frame. Two springs are mounted to the two pins and biased between the two side tails of the base and the two sides of the frame. Each pin has two second spiral ramps located on different surfaces of a head of each pin. The first spiral ramps are movably engaged with the second spiral ramps.

Abstract: A treadmill includes a base having two side rails and two posts extend from the two side rails. Two transverse bars are connected between the two side rails. Two guide members are connected between the two transverse bars and a motor is fixed to the base. A frame of the running belt is located between the two side rails of the base and a connection board is connected between two sides of the frame. Two connection plates are respectively connected to the two sides of the frame and pivotably connected to the posts. A movable member is driven by the motor and movable on the two guide members. Two arms connected to the movable member are pivotably connected to the connection board so that when the movable member is moved, the frame pivoted by tie arms.