Abstract: An auto hammer with a striking device includes a striking rod and a clamping mechanism. The striking rod continually strikes a component to gradually insert the component into a workpiece. The clamping mechanism includes at least one clamping element, a biasing device, a bush and a sleeve, and the clamping elements are movable between a closed position and an opened position. The bush is arranged around the striking rod so as to prevent the nail head from becoming trapped in a gap which is formed after the clamping elements are entirely opened. The biasing device is arranged for biasing the bush toward the direction of striking the component. This clamping mechanism can reliably clamp nails or other components to facilitate user operation of the device.

Abstract: An auto hammer having housing, a handle and a striking device, the striking device including a striking rod for striking nails or other components in a linear reciprocating manner and a clamping mechanism for clamping nails or other components. The clamping mechanism includes clamping elements and a sleeve and the sleeve is provided with slots along which the driving portions of the clamping elements may slide so that the clamping elements are movable between a closed position and an opened position. This clamping mechanism can reliably clamp nails or other components to facilitate the operation of the user.

Abstract: A saw blade clamping device has a first clamping device for clamping a first working element and a second clamping device for clamping a second clamping element, wherein the first clamping device and the second clamping device are parallel to each other and mounted to a transmission controlling mechanism. The two clamping devices can be controlled by the transmission control mechanism to can not only clamp a single saw blade but to allow for replacement of the single saw blade by double saw blades without changing the clamping system, which enables the replacement of the saw blade to be more convenient and quick.

Abstract: A power tool has a driving shaft for driving a working element and a clamping device for clamping the working element. The clamping device has a clamping position in which the working element may be fixed relative to the driving shaft and a release position in which the working element can be removed from the driving shaft. An operating member is coupled to the clamping device for moving the clamping device between positions. The clamping device also has a rotating position in which the working element can be rotated by an angle relative to the driving shaft and the operating member has an operating position that corresponds to the rotating position.

Abstract: A saw blade clamping mechanism includes a saw blade spindle, a support sleeve, a clamping pin, and a rotating sleeve. The spindle has a longitudinal receiving slot and an axial elongate slot. The rotating sleeve has a retaining slot. A movable pin is secured on the rotating sleeve and extends through the elongate slot. A latch pin is fixed on the support sleeve and is held within the retaining slot. The rotating sleeve is movable from a first position to a second position. When the rotating sleeve is in the first position, the latch pin is positioned at an outer end of the circumferential section of the retaining slot and the clamping pin inserts into the longitudinal receiving slot of the spindle to fix a saw blade. When the rotating sleeve is in the second position, the latch pin is positioned at an upper end of the axial section of the retaining slot and the clamping pin retracts from the receiving slot of the spindle to release the saw blade.

Abstract: A power tool has a driving shaft driving a working element, a fastening piece fastening the working element to the driving shaft having a projecting shaft insertable into the driving shaft, a locking assembly locking the projecting shaft in the driving shaft having a locking member wherein the locking member has a locking position for locking the projecting shaft with the driving shaft and a loosening position for loosening the projecting shaft with the driving shaft. At the locking position, the fastening piece is pressed towards an end portion of the driving shaft by an elastic component. The locking assembly further includes a movable member arranged outside of the driving shaft, the movable member having a first portion and a second portion which can be directly or indirectly mated with the locking member wherein a radial distance of the first portion relative to a shaft center of the driving shaft is unequal to that of the second portion relative to the shaft center of the driving shaft.

Abstract: A borer for forming holes in a workpiece has a fastening portion for mounting on an oscillating tool and a cutter which is connected with the fastening portion. The cutter is driven in a vibrating manner by the oscillating tool such that a feeding direction of the cutter is substantially parallel to a longitudinal axis about which the borer is driven in a vibrating manner.

Abstract: A reciprocating saw having a housing, a reciprocating shaft unrotatably connected to a blade, a rear handle and a forward handle, the forward handle being rotatably mounted to the housing near the blade and capable of sliding relative to the reciprocating shaft, but incapable of rotating relative to the reciprocating shaft. The forward handle comprises at least one hole, the reciprocating saw further includes a button connected to a locking element for engaging or disengaging with the at least one hole. The reciprocating saw is easy and comfortable to operate.

Abstract: The present disclosure provides a power tool having a clamping device for a working element. The power tool includes an output shaft, a fastening piece having a flange portion for clamping the working element and a protruding shaft substantially perpendicular to the flange portion. A locking assembly comprising a locking member having a first position in which the protruding shaft is locked and a second position in which the protruding shaft is loosened is provided, wherein a pressing member can press the working element between the pressing member and the flange portion when the locking member is in the first position. The power tool can fasten the working element to the output shaft in a simple and reliable manner without the necessary use of such auxiliary tools as a spanner etc. and can achieve a stronger clamping force even under impact conditions.

Abstract: A hand-held power tool with a quick-clamping device for a working element includes a working mandrel for driving the working element, a fastening member for fastening the working element onto the end of the working mandrel, and a locking assembly. The fastening member includes a clamping shaft insertable into the working mandrel and a moving assembly for making the fastening member moveable between a releasing position and a clamping position. The locking assembly includes a floatable clamping component and the clamping component and the clamping shaft are provided with corresponding toothed portions such that engagement and disengagement therebetween is selectively achieved by the relative rotation of the toothed portions.

Abstract: An automatic nail-feeding mechanism for a power tool having a striking assembly having a striking rod movable in a linear reciprocating manner feeds a nail to be struck to a front end of the striking rod. The automatic nail-feeding mechanism has a driving part movable between a first position and a second position in a direction of a reciprocating motion of the striking rod and a nail-storing element is provided with nails arranged at a fixed pitch, the nail-storing element being fed a distance of the fixed pitch towards the striking rod when the driving part moves from the first position to the second position and then from the second position to the first position in a stroke of the reciprocating motion thereof.

Abstract: An electric hammer has a housing having a nozzle portion, a motor and a transmission mechanism arranged in the housing, a striking device, coupled to the motor and transmission mechanism, for moving in a reciprocating manner in the nozzle portion, and a clamping device mounted to the nozzle portion and at least partially extending out of the nozzle portion. The clamping device includes an outer sleeve, an inner sleeve arranged in the outer sleeve, and at least two clamping members arranged on the inner sleeve. The inner sleeve has a first position and a second position with respect to the outer sleeve and the distance between the two clamping members in the first position is less than the distance between the two clamping members in the second position to thereby allow a nail to be released halfway, i.e., when partially struck into a workpiece, in a simple manner.

Abstract: The present application provides a clamping device for a saw blade having a main body with a saw blade slot for installing the clamped portion of the saw blade, a first locking element installed on the main body and a first reversion element for exerting a force on the first locking element. The clamping device for a saw blade may further comprise a second locking element installed on the main body having a second reversion element for exerting a force on the second locking element so that the second locking element tends to move toward the longitudinal axis of the saw blade slot. At the clamping location, the first and second locking elements clamp the saw blade. Using the saw blade clamping device of the present application results in a stable saw blade for sawing and greatly enhances sawing efficiency.

Abstract: The present application provides a clamping device for a cutting member having a rotating sleeve and a quick clamping body. The clamping device has a first sun gear arranged in the center of the rotating sleeve, a first stage planetary gear having multiple planetary gears cooperating with the first sun gear, and a second stage planetary gear having multiple planetary gears cooperating with a second sun gear arranged on the planetary carrier. An inner ring gear may also be arranged outside of the first and second stage planetary gears and the head of the quick clamping body. Also, the clamping device of the present application does not need a special tool to remove the saw blade, which may lower the required effort to allow for the clamp to clamp the saw blade more quickly and more reliably.

Abstract: A quick-clamping mechanism for an electric hammer for clamping fasteners such as nails includes a biasing assembly for making the clamping assembly movable between a closed position and an opened position. The clamping assembly includes at least two clamping claws, and each of the clamping claws is pivotally connected to a pivot shaft and the two clamping claws can be pivotally closed and opened, and the closure of the two clamping claws is realized by any one of or the combination of a torsion spring and a magnet. The two clamping claws are pivotally connected to the pivot shaft and fasteners, such as nails and the like, can be clamped or released by the two clamping claws rotating relative to the pivot shaft, so that the quick-clamping mechanism has a simple structure and is easily implemented.

Abstract: An electric hammer includes a striking device having a clamping mechanism. The clamping mechanism includes a clamping element, a sliding element, a first biasing device and a second biasing device. The sliding element is provided with a guide portion in which the clamping element is slidable between a first position where the clamping element is closed and a second position where the clamping element is opened. The biasing force generated by the first biasing device is smaller than that of the second biasing device when the clamping element is in the opened position.

Abstract: An auto hammer with a striking device includes a striking rod and a clamping mechanism. The striking rod continually strikes a component to gradually insert the component into a workpiece. The clamping mechanism includes at least one clamping element, a biasing device, a bush and a sleeve, and the clamping elements are movable between a closed position and an opened position. The bush is arranged around the striking rod so as to prevent the nail head from becoming trapped in a gap which is formed after the clamping elements are entirely opened. The biasing device is arranged for biasing the bush toward the direction of striking the component. This clamping mechanism can reliably clamp nails or other components to facilitate user operation of the device.

Abstract: An auto hammer having housing, a handle and a striking device, the striking device including a striking rod for striking nails or other components in a linear reciprocating manner and a clamping mechanism for clamping nails or other components. The clamping mechanism includes clamping elements and a sleeve and the sleeve is provided with slots along which the driving portions of the clamping elements may slide so that the clamping elements are movable between a closed position and an opened position. This clamping mechanism can reliably clamp nails or other components to facilitate the operation of the user.