摘要:
A folding treadmill includes a tread base supported by a foot structure which has guide plates formed with elongated slots on two sides of the tread base. The tread base is connected pivotally on the base support through pivot members which are mounted movably within the respective slots so that the tread base is turnable between a folded position and an unfolded position and movable rearward when the tread base turns to the folded position or forward when the tread base turns to the unfolded position. The foot structure further includes a guide rail structure on two sides of the tread base to support movably a first roller which is attached to the tread base and a lifting device for lifting the tread base.
摘要:
A folding treadmill includes a tread base supported by a foot structure which has guide plates formed with elongated slots on two sides of the tread base. The tread base is connected pivotally on the base support through pivot members which are mounted movably within the respective slots so that the tread base is turnable between a folded position and an unfolded position and movable rearward when the tread base turns to the folded position or forward when the tread base turns to the unfolded position. The foot structure further includes a guide rail structure on two sides of the tread base to support movably a first roller which is attached to the tread base and a lifting device for lifting the tread base.
摘要:
An exercise apparatus is disclosed herein, including a frame, a rotating assembly, two supporting rods, two swing arms, two links, and two pedals. The front ends of the supporting rods are connected respectively to two pivotal ends of the rotating assembly, and the rear end of each supporting rods moves back and forth along a corresponding track. The front ends of the links are connected respectively at two swing ends of the swing arms. Each pedal has a step surface and is coupled to the rear portion of the corresponding link. The distance between the bottom of a circular path of the pivotal ends and the tracks is smaller than 10 cm. The length of the supporting rod is smaller than two times diameter of the circular path. The longitudinal horizontal distance between the front edge of the closed path and the rear edge of the circular path is smaller than 20 cm. The rear ends of the supporting rods are located between the front ends and rear ends of the pedals. In an embodiment, a highest point of the step surface of the pedal has a step height relative to the track and the step height is less than 20 cm.
摘要:
An exercise apparatus is disclosed herein, including a frame, a rotating assembly, two supporting rods, two swing arms, two links, and two pedals. The front ends of the supporting rods are connected respectively to two connecting points of the rotating assembly, and the rear end of each supporting rod moves back and forth along a corresponding track. The front ends of the links are connected respectively at two swing ends of the swing arms. Each pedal is mounted at the rear end of a corresponding link and pivotally coupled to a corresponding supporting member. The distance between the bottom of a circular path of the connecting points and the tracks is smaller than 10 cm. The length of the supporting rod is smaller than two times diameter of the circular path. The longitudinal horizontal distance between the front edge of the closed path and the rear edge of the circular path is smaller than 20 cm. The rear ends of the supporting rods are located between the front ends and rear ends of the pedals.
摘要:
An exercise apparatus is disclosed herein, including a frame, a rotating assembly, two supporting rods, two swing arms, two links, and two pedals. The front ends of the supporting rods are connected respectively to two connecting points of the rotating assembly, and the rear end of each supporting rod moves back and forth along a corresponding track. The front ends of the links are connected respectively at two swing ends of the swing arms. Each pedal is mounted at the rear end of a corresponding link and pivotally coupled to a corresponding supporting member. The distance between the bottom of a circular path of the connecting points and the tracks is smaller than 10 cm. The length of the supporting rod is smaller than two times diameter of the circular path. The longitudinal horizontal distance between the front edge of the closed path and the rear edge of the circular path is smaller than 20 cm. The rear ends of the supporting rods are located between the front ends and rear ends of the pedals.
摘要:
An exercise machine includes a pair of reciprocating slide members each having a pivotal end connected to a rotating mechanism and a sliding end slidable on a support. A foot plate 43 is mounted slidably on a corresponding slide member. A linkage unit is connected to each foot plate and the rotating mechanism, and a control mechanism is associated with the linkage unit and the foot plate for actuating the foot plate to move forward when the slide member moves forward and to move rearward when the slide member moves rearward. An elliptical path of the exercise machine can be enlarged due to the slidable foot plate and the control mechanism.
摘要:
An exercise apparatus is disclosed herein, including a frame, a rotating assembly, two supporting rods, two swing arms, two links, and two pedals. The front ends of the supporting rods are connected respectively to two connecting points of the rotating assembly, and the rear end of each supporting rod moves back and forth along a corresponding track. The front ends of the links are connected respectively at two swing ends of the swing arms. Each pedal is mounted at the rear end of a corresponding link and pivotally coupled to a corresponding supporting member. The distance between the bottom of a circular path of the connecting points and the tracks is smaller than 10 cm. The length of the supporting rod is smaller than two times diameter of the circular path. The longitudinal horizontal distance between the front edge of the closed path and the rear edge of the circular path is smaller than 20 cm. The rear ends of the supporting rods are located between the front ends and rear ends of the pedals.
摘要:
An exercise apparatus is disclosed herein, including a frame, a rotating assembly, two supporting rods, two swing arms, two links, and two pedals. The front ends of the supporting rods are connected respectively to two connecting points of the rotating assembly, and the rear end of each supporting rod moves back and forth along a corresponding track. The front ends of the links are connected respectively at two swing ends of the swing arms. Each pedal is mounted at the rear end of a corresponding link and pivotally coupled to a corresponding supporting member. The distance between the bottom of a circular path of the connecting points and the tracks is smaller than 10 cm. The length of the supporting rod is smaller than two times diameter of the circular path. The longitudinal horizontal distance between the front edge of the closed path and the rear edge of the circular path is smaller than 20 cm. The rear ends of the supporting rods are located between the front ends and rear ends of the pedals.
摘要:
A method of implanting at least one solder bump on a surface of a printed circuit board (PCB) on which at least one soldering pad is exposed since the solder bump intended to be formed thereon is missing is described. The method comprises the steps of: first, forming at least one solder bump for mating with its exposed soldering pad. Then, coating a layer of flux on the surface of the PCB and the exposed soldering pad. Transplanting the solder bump onto the exposed soldering pad. Finally, reflowing the solder bump and clearing the layer of flux from the PCB. In this manner, the solder bump is made up for on the PCB.
摘要:
This invention relates to a method for forming solder bumps on a circuit board, which is formed with a solder resist and pads thereon and the pads are exposed from the solder resist. The steps of the method mainly are: Firstly, strengthen the solder resist by ultraviolet rays and then rough the solder resist by plasma treatments. Next, lay over a photosensitive dry film onto the solder resist and form openings on the photosensitive dry film for exposing the correspondent pads by exposure and development treatments. Last, form spherical solder bumps on the pads within the openings and remove the photosensitive dry film.