Abstract: A power pruner includes a housing, a motor arranged in the housing, a transmission device connected to the motor, a pair of blades and a trigger which is arranged on the housing and used to control the motor. The pair of blades include a fixed blade and a movable blade which is driven by the motor to swing back and forth. The power pruner additionally includes a stroke switch which is arranged on the housing and has at least two statuses wherein the movable blade has a first stroke when the stroke switch is in a first status and a second stroke different from the first stroke when the stroke switch is in a second status.

Abstract: A string trimmer has a blade storage mechanism wherein the blade storage mechanism has a cavity arranged on the body of the string trimmer for storing a blade.

Abstract: A hand-held power tool for pruning and cutting vegetation and a method for replacing blades thereof. The hand-held power tool has a main body and a work head detachably mounted on the main body. The main body has a housing, a motor placed in the housing, and a first gear transmissively connected with the motor. The work head has a blade assembly and a second gear. The second gear engages with the first gear and is provided with a eccentric member connected with the blade assembly. By arranging one portion of the transmission mechanism on the work head, especially the second gear used for providing the eccentrically rotary output on the work head, the transmission mechanism is directly connected with the blade assembly. When the work head needs to be mounted on the main body, it only needs the second gear to be placed on the mandrel arranged on the main body where it will engage with the first gear.

Abstract: The present application provides a work head for a rotational brush cutter. The work head comprises an upper plate, a lower plate and a blade, the upper plate and the lower plate being fixedly coupled. The lower plate is circular and has a passage therethrough with a gear arranged in the passage. The blade has a body portion and a connection portion with the body portion able to be extended outside of the upper and lower plates. The through passage is designed so that the blade can be replaced without requiring the upper plate and lower plate to be disassembled. As a result, because the blade is not restricted by a narrow space between the upper plate and the main frame, the work head does not need to be removed from the brush cutter to replace the blade thereby saving time and effort.

Abstract: Electric shears include a housing, a motor within the housing, a transmission means including a reduction gearbox and a bevel gear pair, a fixed blade, a movable blade rotatably connected to the fixed blade and coupled with the motor via the transmission means, and a stroke-control means controlling the movable blade to swing back and forth about its connection with the fixed blade. The fixed blade is supported on the reduction gearbox and fixed to the housing together with the reduction gearbox. Electric shears are thus provided with a small shape, a simple and compact interior structure, and better portability.

Abstract: Electric shears include a housing, a motor mounted within the housing, at least one blade driven by the motor, and a trigger mounted on the housing for controlling the motor. The electric shears further include a controller for controlling the motor and a mode-selecting switch mounted on the housing and connected to the controller. The controller responds to the mode-selecting switch and controls the electric shears to switch between at least two kinds of operation modes. Since the electric shears has at least two kinds of operation modes, more functions and a broader range of applications can be achieved.

Abstract: A method for controlling reversal of a blade of a bush cutter. The method functions by detecting a parameter of a motor with a control circuit and, when a user presses a reversal button, by causing the control circuit to control the motor not to reverse when the detected parameter, e.g., speed of the motor, is greater than or equal to a preset threshold and to control the motor to reversely rotate and drive the blade to reversely rotate when the detected parameter is less than the preset threshold.

Abstract: The present invention discloses a power tool having a main body portion and at least one interchangeable cutting tool carrier. A motor and a transmission mechanism are mounted in the main body portion and the cutting tool carrier includes a cutting tool assembly which includes a connection mechanism. The transmission mechanism includes a driving device which is mounted on the driving shaft and may be coupled with the connection mechanism. The transmission mechanism also has a stationary element and a movable element, each having a magnet mounted on a surface. Due to the magnetic force, the moving element and the driving device are able to move relative to the stationary element to allow for automatic alignment of the driving device and the connection mechanism of the cutting tool elements.

Abstract: A pruner having a housing, a motor mounted in the housing, a handle, an upper blade, a lower blade, and a guide apparatus. The guide apparatus is a long shaped piece with a portion that has the same angle of curvature as one of the blades. The guide apparatus is longer than one of the blades to allow the guide apparatus to assist a user in selecting a specific tree limb to be cut thereby minimizing the unintentional removal of an incorrect tree limb. The guide apparatus may also be removed if the pruner is going to be used to cut lower limbs or in confined spaces.

Abstract: A sliding miter saw having a base for supporting a workpiece, a rotatable table mounted on the base, a transmission frame on one side of the table, a motor disposed on one end of the transmission frame, and a blade driven by the motor. Two rows of rollers are disposed on a bottom of the table and a sliding block adapted to cooperate with the two rows of rollers is disposed between the two rows of rollers. One end of the sliding block is hinged to the transmission frame.

Abstract: The invention provides a hand-held circular saw comprising a base plate and a cutting unit pivotally mounted on the base plate. The cutting unit includes a saw blade, a motor driving the saw blade, and a fixed guard covering at least a part of the saw blade. A guide plate with an arc-shaped slot extends from the base plate. A connecting member or bracket has a first end that is mounted to the cutting unit and a body portion operably connected to the guide plate by a locking element, namely a bolt, and a lever. Once released, the lever allows for movement of the bracket and the blade with respect to the guide plate. A stopper is mounted on the guide plate and is movable between a first position and a second position. In the first position, at least a part of the stopper intercepts the arc-shaped slot and stops the bolt from moving further within the arc-shaped slot.