Abstract: A protective play enclosure includes a frame unit, a bed unit mounted on the frame unit, and a tent mounted on the frame unit. The tent includes a surrounding wall and a roof member. The surrounding wall surrounds the bed unit and cooperates with the bed unit to confine a play chamber. The surrounding wall is formed with at least one doorway for access into the play chamber, and at least one window. The play chamber has an open side opposite to the bed unit. The roof member functions to close the open side of the play chamber.

Abstract: A foldable trampoline includes a bed unit, and a foldable frame unit operable to move between unfolded and folded states, and including first and second frame sections that cooperate to define a bedding space, that are coupled movably to each other and to the bed unit, and that include first and second end parts, respectively. The first end part has a coupling edge formed with a coupling notch, and a guiding edge extending from the coupling edge and formed with a securing notch. The second end part is provided with a coupling shaft to be received movably in the coupling notch, and a securing shaft to be received in the securing notch. The coupling and securing shafts cooperate with the coupling and securing notches to secure the foldable frame unit in the unfolded state, where the bed unit is stretched tensely over the bedding space.

Abstract: A foldable trampoline includes a bed unit, and a foldable frame unit operable to move between unfolded and folded states, and including first and second frame sections that cooperate to define a bedding space, that are coupled movably to each other and to the bed unit, and that include first and second end parts, respectively. The first end part has a coupling edge formed with a coupling notch, and a guiding edge extending from the coupling edge and formed with a securing notch. The second end part is provided with a coupling shaft to be received movably in the coupling notch, and a securing shaft to be received in the securing notch. The coupling and securing shafts cooperate with the coupling and securing notches to secure the foldable frame unit in the unfolded state, where the bed unit is stretched tensely over the bedding space.

Abstract: A rowing exercise apparatus includes a main frame having front and rear ends, a seat frame mounted on the main frame, two oars connected movably to the main frame and each having an end, an oar-coupling grip releasably interconnecting the ends of the oars, and a resistance unit mounted on the main frame and connected to the oars.

Abstract: A collapsible boat rowing simulator includes a beam, a T-shaped front support connected to the front end of the beam having a counter and a pair of tread plates disposed thereon, a rear support connected to an underside adjacent rear end of the beam, a middle support secured to a middle underside of the beam, a pair of oars each having a large vertical tube on inner end, a small vertical tube on outer end and a stop rod on a top, a pair of T-shaped tubes each having a vertical portion inserted through the large vertical tubes secured on lower end by a pair of elastic fasteners and a transverse portion rotatably secured to two ends of a crossed rod on the middle support, a pair of arcuate grips each having a vertical axial rod rotatably inserted into the small vertical tubes, a pair of hydraulic cylinders each having one end pivoted a crossed rod of the rear support and the other end pivoted to the elastic fasteners, a seat slidably mounted on the beam having four rollers engaged into a pair of guides in later

Abstract: A step simulator having pace adjustment device includes a stand, a driving wheel and a idler wheel rotatably secured to the stand and connected by a belt, a pair of tread bars indirectly pivoted to a pair of cranks of the driving wheel via a pair of adjustment devices, a pair of support rods respectively pivoted to a connecting bars of the adjustment devices and a transverse rod on a post of the stand and a pair of handle bars secured to the top of the support rods respectively. This disclosure is characterized in the pair of adjustment devices by which the step simulator is compact in size and both the oscillatory range of the tread bars and the length of the pace are adjustable in order that the step simulator enables to serve the adults and/or the children.

Abstract: A compact step simulator with double inertial wheels includes a rack combined with a front and a rear cylinder stands which are connected by a tilt plate and a vertical post on the top of which is a handle, an indicator and speed governor, a pair of inertial wheels coaxially and rotatably secured to two ends of an axis inside a hub each having an eccentric arbor symmetrically projected outward from the outer surface abutting the rim thereof, a pair of pedal seats having their front ends respectively and rotatably connected with the eccentric arbors and their rear ends sliding about on a pair of rollers on the rear cylinder stand and a pair of pedals secured to the top of the pedal seats abutting their front ends. Thereby, the feet of a user tread on the pedals, the inertial wheels are actuated to rotate at proper speed and the pedals are moved following an elliptic shaped locus.

Abstract: A foldable body building device is formed of a first connection rod mechanism and a second connection rod mechanism. The first connection rod mechanism is formed of an upright rod, a handlebar support rod, two tilted support rods, and a connection rod of a base. The second connection rod mechanism is formed of an upright rod, a handlebar support rod, two damping pressure cylinders, and two swivel rods. The first connection rod mechanism is used to support the body building device in the unfolded state. The second connection rod mechanism is intended to bring about the linking action of the body building device.

Abstract: A foldable body building device is formed of a first connection rod mechanism and a second connection rod mechanism. The first connection rod mechanism is formed of an upright rod, a handlebar support rod, two titled support rods, and a connection rod of a base. The second connection rod mechanism is formed of an upright rod, a handlebar support rod, two damping pressure cylinders, and two swivel rods. The first connection rod mechanism is used to support the body building device in the unfolded state. The second connection rod mechanism is intended to bring about the linking action of the body building device.