Abstract: A pedal adjustable device includes a case fixed to an end of a link and a first member and a second member are connected between two sidewalls of the case respectively. The first part includes a polygonal hole and the second part includes a circular hole. The polygonal hole is larger than the circular hole. A support plate has one end pivotably connected to the case and an extension extends from an underside of the other end of the support plate. A pedal is fixed on the support plate. The extension includes an elongate hole and a plurality pairs of protrusions extend from two insides of the elongate hole to define a space between each pair of the protrusion. An operation member includes a polygonal section and a circular rod. The polygonal section is engaged with the polygonal hole and set on one of pairs of the protrusions.

Abstract: A treadmill includes a support device disposed on a tread base, a handle device having two arms pivotally attached to the support device with an axle and rotatable between a working position and a storing position, and a control device disposed between the arms. The control device may include a frame pivotally attached to the arms with a pivot shaft for allowing the frame to be pivoted relative to the arms of the handle device. The control device includes a groove formed in a flap, and the support device includes a guide rod slidably engaged into the groove of the flap for guiding the frame to pivot relative to the support device and for limiting the frame to rotate relative to the support device.

Abstract: An elliptical exercise machine includes a frame pivotally attached to a base, a pivotal coupling device pivotally coupling the base and the frame together, a retractable device having an outer tube pivotally coupled to the base, and an inner shaft slidably engaged in the outer tube and pivotally coupled to the pivotal coupling device for allowing the inner shaft to be moved into the outer tube or to be moved out of the outer tube when the frame is pivoted to the base, and a latching device for latching the inner shaft to the outer tube at any selected position and for allowing the elliptical exercise machine to be easily adjusted to different moving strokes and to be easily operated by the user.

Abstract: A treadmill includes a support device disposed on a tread base, a handle device having two arms pivotally attached to the support device with an axle and rotatable between a working position and a storing position, and a control device disposed between the arms. The control device may include a frame pivotally attached to the arms with a pivot shaft for allowing the frame to be pivoted relative to the arms of the handle device. The control device includes a groove formed in a flap, and the support device includes a guide rod slidably engaged into the groove of the flap for guiding the frame to pivot relative to the support device and for limiting the frame to rotate relative to the support device.

Abstract: A tweezer assembly for handling minute objects includes two prongs comprising a rear opening having an upward inclined proximal end, an arcuate, enlarged distal end, and an elongated straight portion; a fulcrum member integrally formed with the prongs and having a through hole; a handle comprising two half portions including a grooved rail with the prong secured thereto and a trough aligned with the opening, and an intermediate member having a projection inserting into the through hole to secure the handle and the fulcrum member together; and a lamp comprising two side projections having a peripheral groove and a flat on the groove. The lamp is adapted to slide by sliding the projections along the troughs. The sliding will be stopped when the grooves enter the proximal ends with the flats being inclined to engage the proximal ends so as to pivot the lamp.

Abstract: A foldable mechanism for treadmills includes two respective foldable sets and an operation bar is connected to the two foldable sets. Each foldable set has an operation member fixed to the upright frame corresponding thereto and the operation member has a groove defined in a side thereof. A periphery defining the groove includes multiple recesses. Two end plates each have a first end fixed to one of two ends of the operation bar and the other end of each end plate is pivotably connected to the foldable set corresponding thereto. An engaging member extends from the first end of each end plate and is movably inserted into the groove of the operation member. When pivoting the upright frames toward the horizontal frame of the treadmill by pivoting the operation bar, the engaging members are engaged with one of the recesses in different folded positions.

Abstract: An exerciser includes two rails pivotally attached to a base, two handles pivotally attached to the base, two foot supports having one end pivotally coupled to the handles and the other end slidably engaged with the rail, and a tilting device may tilt the rails relative to the base to different angular positions in order to adjust the moving strokes of the foot supports. A bolt may be rotatably attached to the base and threaded with a follower, and a motor coupled to the bolt for rotating the bolt relative to the base, and for adjusting the follower along the bolt, and the follower is coupled to the rails for tilt the rails relative to the base to different angular positions.

Abstract: A pedal adjustable device includes a case fixed to an end of a link and a first member and a second member are connected between two sidewalls of the case respectively. The first part includes a polygonal hole and the second part includes a circular hole. The polygonal hole is larger than the circular hole. A support plate has one end pivotably connected to the case and an extension extends from an underside of the other end of the support plate. A pedal is fixed on the support plate. The extension includes an elongate hole and a plurality pairs of protrusions extend from two insides of the elongate hole to define a space between each pair of the protrusion. An operation member includes a polygonal section and a circular rod. The polygonal section is engaged with the polygonal hole and set on one of pairs of the protrusions.

Abstract: An elliptical exerciser includes a frame with a wheel connected thereto and two swinging mechanisms are pivotably connected on two sides of the wheel. Each swinging mechanism includes a swing bar and a connection link. A first end of each connection link is pivotably connected to the wheel and a second end of each connection link is connected to an adjusting mechanism. The adjusting mechanism includes a main body which has a first end pivotably connected to the frame and the two second ends of the connection links are pivotably connected to a second end of the main body. Two pedals are connected to the connection links so that the user holes the swing bars and stands on the pedal to move the pedals along an oval track. The long and short axes of the oval track are adjustable by pivoting the adjusting mechanism.

Abstract: An elliptical exerciser includes two swing arms pivotably connected to a mediate portion of a post on the base and two slidable link units are pivotably connected to two respective lower ends of the two swing arms. Each slidable link unit has a first link and a second link wherein two connection parts respectively extend from two ends of the first link at an angle. The first end of the first link is pivotably connected to the wheel. Two ends of the second link are pivotably connected to the two connection parts by two connection members which allow the second links to be pivotable relative to the two connection parts. The two second links have two pedals connected thereto so that the pedals can travel a further distance relative to the first links so as to increase the distance of the ling axis of the oval trace.

Abstract: A pedal adjustable system for an exerciser includes a casing composed of an end member and two side plates connected on two ends of the end member. An adjusting unit is received in the casing and has a threaded rod which can be rotated to move the adjusting unit. The tubular body has two side portions which are movably engaged with two slots in the two side plates. Two pivotal plates each have an end connected to the side portion corresponding thereto and the other end of each of the two pivotal plates is pivotably connected to a pivotable unit on which a pedal is connected. The inclination of the pedal can be adjusted by the user to rotate the threaded rod to pivot the pivotal plates together with the pedal.

Abstract: A body vibrating device includes a foot support pivotally supported on a base with a pivot rod, a reduction gearing device disposed on the base and having an eccentric member coupled to the foot support and spaced from the pivot rod for allowing the foot support to be pivoted relative to the base with the pivot rod and to be rotated and driven by the reduction gearing device, and a motor is coupled to the reduction gearing device for driving the reduction gearing device to rotate and to vibrate the foot support. The foot support may be stably supported on the base with the pivot rod, and may be effectively rotated and vibrated by the motor and the reduction gearing device.

Abstract: A body vibrator includes a platform disposed above a base, two support devices each having a pivotal arm coupled to the platform for pivotally supporting the platform above the base, a motor-driven reduction gearing device disposed on the base and having an eccentric member coupled to the arm of the one of the support devices for allowing the platform to be rotated and driven by the reduction gearing device. The platform may stably support a user and may be suitably vibrated for massaging the whole user' body and for facilitating the blood and/or lymph circulation of the user and for decomposing the fatty tissue and thus for suitably reducing the fat from the user.

Abstract: A body vibrating device includes two rods rotatably straddled between two plates, two followers attached to the rods and coupled together with a link, two foot supports attached to the followers, a reduction gearing device disposed on the base and having an eccentric member coupled to either of the followers for allowing the followers and the rods and the foot supports to be rotated and driven by the reduction gearing device, and a motor coupled to the reduction gearing device for driving the reduction gearing device to vibrate the followers and the rods and the foot supports. The foot supports may be stably supported and driven or vibrated by the motor.

Abstract: A pedal angle adjustable device for an elliptical trainer includes two adjustable plates pivotably connected between the pedal and two connection plates which are pivotably connected to an end of the pedal. The two adjustable plates each have a positioning hole composed of a plurality of positioning notches and a positioning rod extends through the two connection plates and the positioning holes in the two positioning plates. A push block connected to a handle is located in front of the positioning rod such that when operating the handle, the push block may push the positioning rod from one positioning notch to another and the pedal can be pivoted about the pivotal point on the end of the pedal.

Abstract: A pedal angle adjustable device for an elliptical trainer includes two adjustable plates pivotably connected between the pedal and two connection plates which are pivotably connected to an end of the pedal. The two adjustable plates each have a positioning hole composed of a plurality of positioning notches and a positioning rod extends through the two connection plates and the positioning holes in the two positioning plates. A push block connected to a handle is located in front of the positioning rod such that when operating the handle, the push block may push the positioning rod from one positioning notch to another and the pedal can be pivoted about the pivotal point on the end of the pedal.

Abstract: An adjustable magnetic resistance mechanism of an upright bike includes a fan-shaped adjustment board which is pivotably connected to the bike's frame and a magnet unit is connected to a distal end of the adjustment board. A connection board is connected to the adjustment board and a shaft of the flywheel extends through a curve slot of the adjustment board. Two ends of the shaft are supported on two support plates on two upright posts of the upright bike. An axle extends through a pivot hole in the adjustment board and the connection board. A resilient member is connected between the connection board and the adjustment board. The adjustment board is pivoted about the axle to adjust the gap between the flywheel and the magnet unit on the adjustment board.