A method of refurbishing a handheld landscape power tool includes separating an original motor of the power tool from a tool head of the power tool. The tool head includes a tool shaft extending proximate to the original motor. A replacement power head and a shaft coupler are provided. The replacement power head includes a motor and a power shaft mechanically coupled to the motor. The shaft coupler includes a power shaft connecter coupled to a shaft-specific connecter. The replacement power head is coupled to the shaft coupler by connecting the power shaft connecter to the power shaft of the replacement power head. The tool head is coupled to the shaft coupler by connecting the shaft-specific connecter to the tool shaft of the tool head.

A tree saw attachment for a modular landscape trimmer is disclosed. In one embodiment, the tree saw attachment is provided with a drive unit having a drive shaft operably connectable to a motive source and a transmission operably connected to the drive shaft. An anvil is connected to and extending from an output side of the transmission of the drive unit, and a blade is connected to the output shaft of the transmission. The blade has an arcuate outer peripheral edge with teeth formed along a portion thereof forming a cutting edge so as the output shaft is rotated, the distance between the cutting edge and a central axis of the output shaft increases until the blade has substantially completed one rotation. Rotation of the blade causes the blade to move transversely with respect to the anvil to engage and cut material positioned between the blade and the anvil.

A hedgetrimmer having a blade assembly that includes a sawblade for cutting through larger branches and other vegetative foliage. The blade assembly includes a reciprocating blade having an integrally formed sawblade portion that moves back and forth cutting motion. The other blade is fixed and includes a bevelled interior edge that helps debris being cut to pass over the blade and prevent getting stuck.

A handle includes: a switch lever having an operational portion in an inverted U-shape, and configured to press an on/off switch when the operational portion is gripped and pressed; a handle body provided with the on/off switch mounted thereto and having an inner peripheral slit from which the operational portion of the switch lever housed in the handle body projects; a spring having a supported portion and a pair of arms extending from the supported portion, housed in the handle body, and biasing and pushing the switch lever back; and a plurality of limiters provided at locations in either the handle body or the switch lever at a distance from the spring, and configured to limit movement of the switch lever.

A lawn mower includes a housing with a baffle that defines an air path to produce a cross-flow. The baffle includes a vent to manipulate air pressures within the housing and facilitate movement of plant clippings. A hand-held device for trimming with a rotary blade assembly may also include a housing that defines an air path to produce a cross-flow. The hand-held trimming device may also a baffle with a vent to facilitate movement of plant clippings.

An electrically powered rotary trimmer adapted to trim external portions of an agricultural product or other plant material. The trimmer may include an electric motor which rotates two or more trimming portions. The trimmer may include a handle with a battery. The trimmer may include a trim guard which may be rotatably adjustable. The trimmer may be adapted to plug into an external power source, which may be an external battery or a cellular telephone.

A blade has a flat body with a first side, a second side, an aperture extending between the first side and the second side, and an outer peripheral edge. The aperture has a central axis defining an axis of rotation. A plurality of teeth is formed along a portion of the outer peripheral edge forming a cutting edge. Each of the teeth has a tip that is a radial outermost part of the flat body in a plane defined by the tip and the central axis of the aperture. The cutting edge has a first end and a second end. The distance between each tip of the teeth increases from the first end of the cutting edge to the second end thereof. The distance between each tip and the central axis increases from the first end of the cutting edge to the second end thereof.

A hedge trimmer includes: a housing formed with an accommodation space; a blade assembly including a first blade and a second blade, where the first blade and the second blade reciprocate along a direction of a first straight line, and the blade assembly further includes a blade support for supporting the first blade and the second blade and extending along the direction of the first straight line; a transmission mechanism for driving the blade assembly to move; and a motor coupled to the housing and used for driving the transmission mechanism. The blade support has a density of greater than or equal to 1 g/cm.sup.3 and less than or equal to 2.2 g/cm.sup.3.

A method of refurbishing a handheld landscape power tool includes separating an original motor of the power tool from a tool head of the power tool. The tool head includes a tool shaft extending proximate to the original motor. A replacement power head and a shaft coupler are provided. The replacement power head includes a motor and a power shaft mechanically coupled to the motor. The shaft coupler includes a power shaft connecter coupled to a shaft-specific connecter. The replacement power head is coupled to the shaft coupler by connecting the power shaft connecter to the power shaft of the replacement power head. The tool head is coupled to the shaft coupler by connecting the shaft-specific connecter to the tool shaft of the tool head.

System for hedge pruning and method for making and using the same. An exemplary system for hedge pruning includes a mounting assembly for connecting to a mobile platform, the mounting assembly defining a pivot point region thereon, a cutting arm rotatably coupled to the mounting assembly at the pivot point region. And a blade assembly connected to an end region of the cutting arm such that the blade assembly prunes a hedge along an arc defined based upon rotation of the cutting arm about the pivot point region. Advantageously, the system provides an ability to discriminate selected plants in a hedge to improve grove health and exploit alternate bearing nature of certain groves, resulting in a more consistent production each year. Differentiated treatment can be provided within a row of the plants while pruning the hedges in an automated manner that is more efficient than manual pruning.