Abstract: A positioning apparatus for a foldable running machine includes a base, a running platform, and a folding assembly. The running platform is pivotally connected to the base. The folding assembly is connected to the running platform and includes at least one slide guide rail, at least one cylinder, and at least one rod. The cylinder is slidably coupled to the slide guide rail, wherein both the cylinder and the slide guide rail are parallel to the extending direction of the running platform. The rod is pivotally connected to the cylinder and pivotally connected to the base.

Abstract: A foldable stand for supporting a machine can be folded or extended between a collapsed position, an extended supporting position, and a hand carrying position. The foldable stand includes a platform formed by two bearing bars that define a bearing surface for supporting a machine. Two support units are pivotally connected to the bearing bars and can be pivoted, and selectively locked, between a collapsed position, an extended supporting position, and a hand carrying position. The selective locking is achieved by the selective engagement of positioning devices with locating grooves formed on the foldable stand.

Abstract: A driving device for a scroll sawing machine includes upper and lower head bodies, each having a nose segment which is turnable by a reciprocating force of an arm, upper and lower straightening members each adapted to grip an end of the saw blade, and upper and lower linkage members each including a hanging end which is connected to the nose segment, a holding end which is connected to the respective straightening member, and a linking segment which defines with the holding end a straight line that is parallel to a running path of the saw blade such that, when the nose segment is turned, the linking segment can be lifted or lowered so as to keep the holding end in the straight line.

Abstract: A collapsible supporting stand includes a center member, at least three supporting posts and an adjustment unit. The center member has a center hole, and a plurality of receiving portions equiangularly spaced around the center hole. The supporting posts are respectively partially received in the receiving portions and respectively pivotally connected to the center member. Each supporting post has a support member fixedly provided at its top end. The adjustment unit is coupled to the center member and is vertically movable and rotatable relative to the center member, and includes a holder member and connection members. The number of the connection members is equal to the number of supporting posts. Each connection member has two opposite ends respectively pivotally connected to the associated supporting post and the holder member.

Abstract: A dust collector for a miter saw includes a link and a dust collection member. The link has a first end connected to a saw blade guard of the miter saw and a second end opposite to the first end. The saw blade guard defines an inside space thereof in communication with a dust flue. The dust collection member is pivotally connected to the saw blade guard of the miter saw and is slidably coupled to the second end of the link. The dust collection member has a channel within which the saw blade passes during a cutting operation to cut a workpiece so that the channel guides cut chips from the workpiece to the outside of the miter saw via the inside space of the saw blade guard and the dust flue.

Abstract: A quick release device for use in a saw to secure a guard cover to a spreader of a saw blade guard assembly. The quick release device includes a mounting block, which has a mounting groove for receiving the spreader, a pivot member pivotally mounted in the mounting block and having a non-circular shoulder received in a receiving portion of a notch on the spreader, and a lever coupled to the pivot member for rotating the pivot member to cause the shoulder of the pivot member to be locked in the receiving portion of the notch or to be movable out of the notch.

Abstract: A vibration-reducing device is applied to a scroll saw. The scroll saw includes a body, a U-frame, a block and an actuating device. The U-frame is coupled to the body, and the block and a shaft of the actuating device are eccentrically fastened to each other, and the actuating device is mounted to the body. The vibration-reducing device includes a connector and a pivot arm pivotally coupled to the body. The connector includes a third end rotatably connected to the block, and a fourth end rotatably connected to the pivot arm. When the shaft is rotated, the motion of the center of gravity of the pivot arm in a vertical direction is opposite to the motion of the center of gravity of the U-frame.

Abstract: A copy cutting machine includes a base having a worktable, a rack movable on the worktable and for holding a workpiece for cutting. A pointer is movable to trace the contour of a pattern and to guide the movement of the rack subject to the contour of the pattern via a connection bar connected between the rack and the pointer. A rolling cutter is inserted through the worktable and the rack and is rotatable to cut the workpiece carried in the rack. A motor drive is arranged for rotating the rolling cutter. A support arm is fixedly mounted on the base, a first cutter holder is connected to the support arm to hold one end of the rolling cutter, and a second cutter holder is mounted in the base to hold the other end of the rolling cutter.

Abstract: A miter saw includes a base, a rotatable table, a saw arm, a driver, a saw blade, and two supporters. The rotatable table is pivotally mounted to the base and is rotatable relative to the base. The rotatable table includes a support surface configured to receive a workpiece thereon. The saw arm is coupled to the rotatable table and is pivotable downwards towards the support surface. The driver is mounted on the saw arm. The saw blade is mounted on the saw arm and is driven by the driver to cut the workpiece. The two supporters are respectively pivotally mounted to the rotatable table and are configured to support the workpiece thereon while in a supporting position, and to be pivoted to an unobtrusive stowed position when not in use.

Abstract: A cutting mechanism includes a guard, a saw blade mounted within the guard, a motor for rotating the saw blade to cut a workpiece, and a handle unit. The handle unit includes an operating handle that has a first end and a second end connected to the first end, the first end of the operating handle being pivotally positioned along the top side of the guard in one of a number of positions including an initial position where a line between the first end and second end of the operating handle is kept in parallel to said saw blade, a left position 90-degrees leftwards from the initial position and a right position 90-degrees rightwards from the initial position.

Abstract: A circular saw mechanism includes a base having a work surface for supporting a workpiece and a saw arm. The saw arm is pivotally connected to the base and is movable vertically upwards and downwards and includes a connecting device and a motor fixedly mounted thereon. A saw blade is mounted to the saw arm and is rotatable by the motor for cutting a workpiece on the work surface. A handle defining a plane is pivotally connected to the connecting device and is movable relative to the saw arm between a vertical position, where the plane is maintained perpendicular to the work surface, and a horizontal position, where the plane is maintained parallel to the work surface. The handle has a first grip and a second grip fixedly connected together, and an operating lever mounted to the first grip and operable to control operation of the motor.

Abstract: A combination power tool with a machine base, an independently operable portable circular saw, and a connection device set for fastening the portable circular saw to the machine base to form a miter saw. The portable circular saw has a power supply unit including a first power socket that is provided at the front side of the portable circular saw and selectively electrically connectable to the motor of the portable circular saw, a second power socket provided at the rear side of the portable circular saw and selectively electrically connectable to the motor of the portable circular saw, and a power cable for connecting an external power source to one of the first power socket and the second power socket.

Abstract: A sawing machine includes a base, a worktable tiltable relative to the base, a tilt control mechanism coupled between the base and the worktable for tilting the worktable relative to the base, and a tilt angle indicator for indicating a tilt angle of the worktable. The tilt angle indicator includes a wheel, which is pivoted to a bottom side of the worktable and has an indication zone, a spring member provided between the wheel and the worktable for providing a torsional force to the wheel, and a pull cord connected between the base and the wheel for driving the wheel to rotate when tilting the worktable relative to the base.

Abstract: A copy cutting machine includes a base having a worktable, a rack movable on the worktable and for holding a workpiece for cutting. A pointer is movable to trace the contour of a pattern and to guide the movement of the rack subject to the contour of the pattern via a connection bar connected between the rack and the pointer. A rolling cutter is inserted through the worktable and the rack and is rotatable to cut the workpiece carried in the rack. A motor drive is arranged for rotating the rolling cutter. A support arm is fixedly mounted on the base, a first cutter holder is connected to the support arm to hold one end of the rolling cutter, and a second cutter holder is mounted in the base to hold the other end of the rolling cutter.

Abstract: A cutting machine includes a base, which has a worktable with a hole defined therethrough. A rolling cutter is inserted through the hole on the worktable and is rotatable on an axis to cut a workpiece carried on the worktable. A drive having a motor rotates the rolling cutter. A support arm is removably mounted on the base, and a first cutter holder is connected to the support arm to selectively hold one end of the rolling cutter, and a second cutter holder is mounted in the base to selectively hold the other end of the rolling cutter.

Abstract: A table saw includes a table, a saw blade, a guide control device, which has a push member for pushing the workpiece for cutting by the blade and a control device for holding by the operator to move the push member. The control device further has a first switch and a transmitter module that wirelessly sends out a disconnection signal when the first switch is switched on. A driving mechanism has a second switch, a motor electrically connected to an external power supply device through the second switch and controllable by the second switch to drive the saw blade, and a receiver module. The receiver module switches off the second switch upon receipt of the disconnection signal from the transmitter module.

Abstract: A connecting assembly is adapted to connect a power tool and a stand. The stand is configured to support the power tool at a predetermined height above the ground. The stand forms at least one hole on its top. The connecting assembly includes a plug having a head and a lock section, a base fixed on the stand and correspondingly located underneath the hole, and a lock assembly. The head is larger than the hole. When the plug is inserted into the bottom of the power tool, through the hole and into the base, the lock assembly is movable relative to the base to selectively lock or unlock the lock section. Thus, the power tool and the stand can be easily and quickly connected or seperarated without the use of any tools.

Abstract: A securing device for securing a blade of a cutting tool includes a clamp assembly, a bolt, a resistant slice and a driving member. The clamp assembly has two clamp members between which the blade is clamped. The bolt extends into the clamp assembly and is screwed into a driving shaft device of the cutting tool for securing and pressing the clamp assembly to clamp the blade. The resistant slice is shaped to a curvature. The bolt is through the resistant slice, and the head of the bolt presses the resistant slice so as to force the clamp assembly. The driving member includes a body fixed on the head of the bolt and a handle pivotally coupled to the body. The distance between the head of the bolt and a movable end of the handle is changed when the handle pivots with regard to the body.

Abstract: A foldable stand includes a platform for holding a power tool, four legs, and a connecting device set, which has four connecting devices respectively pivotally secure the legs to the platform for allowing the legs to be set between a collapsed status received inside the platform and an extended status to support the platform above the floor. The third and fourth connecting devices are respectively disposed at two opposite sides relative to the connection line that is defined between the first connecting device and the second connecting device. The leg that is coupled to the first connecting device is disposed near the connection line between the first connecting device and the second connecting device and far from the third connecting device, and the leg that is coupled to the second connecting device is disposed near the connection line between the first connecting device and the second connecting device and far from the fourth connecting device.

Abstract: A saw having a table assembly, a pivot arm, a saw blade and a dust collection system. The table assembly includes a workpiece support surface upon which a workpiece can be supported. The pivot arm is pivotally mounted to the table assembly, and includes a driver and a dust collection passage. The saw blade is mounted on the pivot arm and is driven by the driver for cutting the workpiece. The dust collection system includes a groove having one end which connects to the table assembly, and another end extending to the dust collection passage. Sawdust and/or chips generated during the cutting operation are transferred to the dust collection passage along the groove and are discharged out of the saw.