A head 1 for brush cutter suitable for cutting grass and herbaceous plants having a support element 2, rotatable about a vertical axis Y-Y thereof, connected to a series of first pins 3 and a series of second pins 4. The series of first pins 3 is coupled to a first plurality of cutting elements 5 and the series of second pins 4 is coupled to a second plurality of cutting elements 6.

Said first plurality of cutting elements 5 defines a cutting plane P1 and said second plurality of cutting elements defines a second cutting plane P2, spaced apart from the previous one. The first and second plurality of cutting elements 5, 6 having, over an angular sector of 360° , an alternating arrangement.

A gardening machine is provided, including a rod portion, a controlling portion, a switch assembly and a locking member. The rod portion has a machine tool head. The switch assembly includes a controlling member, and the controlling member is disposed on the controlling portion and movable to be in a first position or a second position. The locking member is disposed on the controlling portion and movable to be in a locked position or a released position, when the locking member is in the locked position, the controlling member is restricted and positioned in the second position.

A gardening machine is provided, including a rod portion, a controlling portion, a switch assembly and a locking member. The rod portion has a machine tool head. The switch assembly includes a controlling member, and the controlling member is disposed on the controlling portion and movable to be in a first position or a second position. The locking member is disposed on the controlling portion and movable to be in a locked position or a released position, when the locking member is in the locked position, the controlling member is restricted and positioned in the second position.

A vegetation trimmer having a blade guard and a drive motor and an elongated drive shaft coupled to the drive motor is disclosed. The blade guard is coupled to the power head assembly, a cutting blade is attached to an output shaft of the power head assembly for rotation relative to the blade guard. The cutting blade being rotatable relative to the blade guard for cutting vegetation when the vegetation trimmer is operational. The blade guard having a diameter larger than a diameter of the cutting blade for protecting the blade and structures near or against where the vegetation trimmer is used. The blade guard defining a plurality of shear openings for receiving vegetation to be cut via the vegetation trimmer.

Disclosed herein is a power tool that includes a direct current power source, motor, and motor controller. In some embodiments, the power source comprises a battery pack configured to supply current at a nominal voltage in excess of 100 VDC. Embodiments of the tool are configured to operate at a high power at least comparable to tools operating at lower voltages, and to produce noise levels in operation that are less than 65 decibels.

Disclosed herein is a power tool that includes a direct current power source, motor, and motor controller. In some embodiments, the power source comprises a battery pack configured to supply current at a nominal voltage in excess of 100 VDC. Embodiments of the tool are configured to operate at a high power at least comparable to tools operating at lower voltages, and to produce noise levels in operation that are less than 65 decibels.

A control assembly for selectively controlling actuation of an electric motor arranged to power a hand-held power tool based on combined performance of two dissimilar operator actions and a hand-held power tool including such a control assembly. A switch member may be closed responsive to an enabling action including a first of the two dissimilar operator actions. A throttle control member becomes operable responsive to actuation of the throttle control member past a first movement threshold, i.e. a second dissimilar operator action, while the switch member is in the actuated state. The throttle control member remains repeatedly operable above a second movement threshold, even if the switch member is opened. Actuation of the throttle control member to below the second movement threshold will render the throttle control member non-operable until renewed combined performance of the first and second dissimilar operator actions.

A control assembly for selectively controlling actuation of an electric motor arranged to power a hand-held power tool based on combined performance of two dissimilar operator actions and a hand-held power tool including such a control assembly. A switch member may be closed responsive to an enabling action including a first of the two dissimilar operator actions. A throttle control member becomes operable responsive to actuation of the throttle control member past a first movement threshold, i.e. a second dissimilar operator action, while the switch member is in the actuated state. The throttle control member remains repeatedly operable above a second movement threshold, even if the switch member is opened. Actuation of the throttle control member to below the second movement threshold will render the throttle control member non-operable until renewed combined performance of the first and second dissimilar operator actions.

An operation management device according to one aspect of the present invention includes: an operation completion data acquisition unit which acquires first operation completion data indicating that a first operation related to maintenance of a grass field has been completed; and an operation implementation data output unit which outputs, when the first operation completion data is acquired, operation implementation data which prompts implementation of a second operation that is an operation related to the maintenance of a grass field and is different from the first operation.

The present invention consists of a novel design of a lightweight string trimmer support intended to be positioned above the cutter head in a parallel plane to the plane of the rotating string generally consisting of an integral attachment device sized to fit string trimmer shafts both straight and curved and fastening to an angled or curved support arm to the string trimmer shaft with a wheel assembly connected to the opposite end of the attachment device configured so that the wheel is closely parallel to the plane of the string motion. The attachment device is design to allow for adjustments along the trimmer shaft for allow for proper positioning and well as allow for rotation adjustment to allow the wheel to be positioned at a slight planer angle to the string rotation plane to retard to the pull forces caused by the string trimmer impacting the surface at the string end.