Abstract: An elliptical trainer with a resilient unit includes a frame, an exercising unit axially disposed on the frame, a pedal unit pivotally mounted to the exercising unit, a damper for providing a damping resistance to the pedal unit, a guide unit for supporting the pedal unit and guiding the pedal unit to slide thereon, and a pair of resilient units respectively disposed in proximity to the pivoted junctions between the exercising unit and the pedal unit for enabling a pair of rear end portions of the pedal unit to be constantly kept far from a pair of pivot-connection portions of the exercising unit so that an inertial-elastic force is produced during operation of the elliptical trainer.

Abstract: An auxiliary support device for circular saw includes a base, a worktable, a support member and a stop member. The base has a supporting portion formed thereon. The worktable is pivotally disposed on the base and is co-planar with the base. The support member is disposed on the supporting portion of the base and is co-planar with the base such that the support member provides support to workpiece of larger size. The base has a mounting hole defined in the supporting portion. The support member has a guiding slot defined therein, a locking member passes through the guiding slot and is secured in the mounting hole for positioning the support member, such that a position of the support member is adjustable relative to the base for adapting to workpieces of various sizes. The stop member is pivotally mounted to one end of the support member adapted for positioning the workpiece.

Abstract: A collapsible stand includes a carrying member, a first support frame unit and a second support frame unit respectively pivotally connected to the carrying member, a linking unit pivotally connected between the first and second support frame units for allowing the collapsible stand to be alternatively set between an extended position and a collapsed position, and a locking unit for locking the first and second support frame units to the carrying member selectively in the extended or collapsed position. The overall structure of the collapsible stand is simple and easy to operate. When set in the extended position, the first and second support frame units give a large area support to the carrying member, assuring high stability.

Abstract: A foldable miter saw includes a base unit, a worktable, a cutting unit, and a safety device. The cutting unit can be set between a working position where the saw blade and the worktable define therebetween a contained angle within 90°˜45° angle and a folded position where a stoppage signal is provided to power off the driver. The arrangement of the safety device enables a power supply to be cut off from the driver automatically when the cutting unit is moved to the folded position.

Abstract: An elliptical exercise machine with a treading depth adjustment mechanism includes a frame, a swing unit, a pedal unit, a damping unit, a guiding unit and an adjusting unit. The swing unit includes a pair of swing arms swingable relative to the frame. The pedal unit includes a pair of stepping bars respectively pivotally connected to the swing arms. The damping unit is adapted for providing swing damping to the stepping bars and includes a rotating wheel mounted at the frame and a resistant member for providing a damping resistance to the rotating wheel. The guiding unit includes a pair of rocking rods swingable relative to the frame and adapted for supporting sliding movement of the stepping bars and a pair of connection rods for driving the rotating wheel to rotate. The adjusting unit is adapted for adjusting the treading depth of the rear end portions of the stepping bars.

Abstract: A table insert for a circular saw includes a stationary panel and a movable panel. The stationary panel is fixed on a worktable of the circular saw and partially covers a trough of the worktable, and the movable panel is pivotally connected to the stationary panel and is pivotally movable relative to the stationary panel between a first position and a second position. When the movable panel is located in the first position, the movable panel partially covers the trough to enable the cutting operation to be performed. When the movable panel is located in the second position, the trough is partially uncovered for conveniently allowing a user to remove saw dust from the trough or to take out small workpieces that fall into the trough.

Abstract: A foldable stand includes two stand legs pivotally connected together. A positioning unit is set between the two stand legs and includes a first link pivotally connected to a second link, a locating plate mounted in the first link and a locking pin mounted in the second link. The foldable stand also includes a control unit having a first pedal mounted at the second link and pressable to move the first and second links toward each other into a folded position. In the folded position, the locking pin is forced into engagement with the locating plate. A second pedal is pivotally connected to the second link and pressable to pull the locking pin out of the locating plate for enabling the two stand legs to be biased from the folded position to an extended position.

Abstract: A width adjustable worktable includes a worktable body, an extension member movable relative to the body, a first guide rod connected to the extension member and a control set rotatably mounted in the extension member. The control set is operable to move the first guide rod between a locking position, where the first guide rod is prevented from moving relative to the worktable body, and an adjustable unlocking position, where the first guide rod is unlocked and movable relative to the worktable body for allowing the user to move the extension member carried by the first guide rod to adjust the width of the worktable.

Abstract: A length adjustable worktable includes a main table, a side extension, a guide unit, and an actuating device. The guide unit is engaged with the side extension for guiding the side extension to slide toward or away from the main table. The actuating device includes an operating member, a driving unit, and a positioning member. By manipulating the operating member, the driving unit and the positioning member are driven, such that the side extension is able to slide toward or away from the main table along the guiding unit, thereby allowing the length of the worktable to be adjusted.

Abstract: An elliptical exercise machine with adjustable stride length includes a frame, a driving unit, an adjustment unit, and a coupling unit. The driving unit includes two pedals, a pair of handlebars and a pair of wheels. The handlebars and the wheels are correspondingly and respectively mounted to the frame. A crank is interposed between the wheels. Two pedal shafts are pivotally and respectively mounted between each wheel and each handlebar. The adjustment unit includes a stationery member mounted to the frame, a driving member mounted to the stationery member, and a linearly movable coupling member. The coupling unit includes two first shafts pivotally connected to the coupling member, two second shafts respectively and pivotally mounted between each handlebar and each first shaft. Two bars are pivotally and respectively engaged to each second shaft and the crank. Thereby, a stride length of the two pedals can be simultaneously adjusted.

Abstract: A multi-link miter saw includes a base, a table supported on the base, a supporting unit connected to the table, a linkage unit connected to the supporting unit, a cantilever arm unit including a cantilever arm pivotally connected to the linkage unit and a connection member pivotally connected between the cantilever arm and the linkage unit for enabling the cantilever arm to be driven by the linkage unit and the connection member to move along a horizontal axis between the rear edge and front edge of the base, and a cutting unit pivotally connected to the cantilever arm unit. Based on the arrangement of the linkage unit and the cantilever arm unit, the cutting unit can be moved smoothly relative to the table, thus enhancing operation stability.

Abstract: A saw blade guard quick release structure and a method for locking and unlocking saw blade guard includes a locating member, a connection member, and a retaining unit. The locating member has two retaining notches. The connection member includes a first guide portion and a second guide portion. The retaining unit is installed on the connection member, including a linking member, a drag member movable along the first guide portion, two retaining members respectively pivotally connected to the drag member and movable along the second guide portion, and a spring member. The method includes mounting the connection member directly on the locating member and selectively engaging the retaining members with the locating notches, thereby locking or unlocking the saw blade guard.

Abstract: A fitness equipment includes a first bar, a pedal unit, two swing arms, a driving unit and a vertical damping unit. The first bar includes a frame carrying two rotating shafts. The pedal unit includes two sleeves respectively sleeved onto the rotating shafts. The two swing arms are respectively connected to the sleeves and two pedal levers respectively pivotally connected to the swing arms. The driving unit includes two detent wheels respectively affixed to the rotating shafts and two flexible detent members respectively connected between the detent wheels and the pedal levers. The vertical damping unit is drivable by the driving unit to impart the pedal levers with a damping in response to the vertical vector. Subject to mating between the rotating shafts and the sleeves, the present invention simplifies the composition of the fitness equipment and significantly reduces its cost.

Abstract: A fitness device includes a body, a pedaling unit, a rotating unit, a seat unit, and at least one coupling unit. The coupling unit is pivotally mounted to the base and is coaxially aligned with the axle. The coupling unit is engaged with the rotating unit such that the rotating unit coaxially rotates with the coupling unit for driving the seat unit to convert between a first position in which the seat unit is located away from the base, and a second position in which the seat unit is located proximate to the base. A vertical distance and a horizontal distance between the seat unit and the pedaling unit are altered when converting between the first and second positions. By rotating the rotating unit, the horizontal and vertical distances between the seat and pedaling units are altered for allowing users to exercise in an upright posture or a recumbent posture.

Abstract: An elliptical trainer includes a frame, a linkage unit, a pedal unit and a horizontal damping unit. The frame includes a base bracket, a column and a guiding member. The linkage unit includes a pair of handles axially disposed on and reciprocately movable relative to the column. The pedal unit includes a pair of pedal levers respectively pivotally mounted to the handles. And the horizontal damping unit includes a pair of belts each having a driven end directly connected to one respective handle or pedal lever and a damping force-generating portion located at an opposite end thereof remote from the driven end. By driving the handles or the pedal levers, the damping force-generating portions provide the handles with a damping in horizontal vector and a potential energy for driving the handles to restore.

Abstract: A support frame for an exercise apparatus includes a base providing a fulcrum, and a moving arm member having a rotating portion located at one end thereof, and a swinging portion located at an opposite end thereof and equipped with a seat unit. The rotating portion is equipped with a wheel pedal unit and is rotatably supported on the fulcrum of the base. The swinging portion is swingable on the center of the rotating portion between a high position located far apart from the base, and a low position located in closer proximity to the base. The support frame is configurable to change the elevation difference between the seat unit and the wheel pedal unit in both a vertical direction and a horizontal direction. Thus, the elevation difference is relatively changed by means of moving the moving arm member relative to the base.

Abstract: A laser alignment device for a circular saw includes a base located on a blade guard of the circular saw, and a laser module mounted at the base. The laser module includes a retaining seat pivotally connected to the base, an auxiliary seat mounted at the retaining seat, and a laser beam generator installed in the auxiliary seat. A first adjusting unit includes a first knob and a first eccentric shaft connected to the first knob and coupled to a first elongated slot in the retaining seat for allowing adjustment of the angle of inclination of the laser beam generator by rotating the first knob. A second adjusting unit includes a second knob and a second eccentric shaft connected to the second knob and coupled to a second elongated slot in the auxiliary seat for allowing adjustment of the angular position of the laser beam generator by rotating the second knob.

Abstract: A collapsible stand includes a base frame, a first supporting frame pivotally connected to the base frame, a first supporting unit pivotally connected between the base frame and the first supporting frame, a second supporting frame pivotally connected to the first supporting frame, a second supporting unit pivotally connected between the base frame and the second supporting frame. When operating the base frame, the second supporting frame is able to be extended away from the first supporting frame, and it is easily operating the collapsible stand from a collapsed position to an extended position; or the second supporting frame is able to be received toward the first supporting frame to a collapsed position by lifting up the first supporting frame.

Abstract: A circular saw includes a machine base, a sliding unit having a slide shaft slidably inserted through the machine base and a stationary mount fixedly mounted at one end of the slide shaft and defining a datum plane, and a cutting unit having a supporting arm pivotally connected to the stationary mount and a saw blade pivotally connected to the supporting arm. The saw blade is movable by the supporting arm up and down relative to the machine base between a lower limit position and an upper limit position so that the saw blade may intersect with the datum plane or be kept in a tangential relationship relative to the datum plane when it reaches the lower limit position. Thus, the circular saw has a compact size, low vibration level and high precision characteristics.

Abstract: A dust collector and a circular saw having a dust collector are disclosed. The dust collector includes a flexible bag having a connecting end, an opposing bottom end and an extending portion connected between the connecting end and the bottom end with an elastically deformable property for avoiding interference with the operation of the machine using the dust collector. The dust collector of the circular saw includes a suction hole located in a suspension arm of the circular saw and defining a bottom opening and an opposing top opening, and a dust collection unit including a flexible dust bag having a connecting end fastened to the top opening and an opposing bottom end disposed below the elevation of the top opening to prevent collected dust from reversely falling out of the dust bag.