A mobile apparatus with a fluid pressure-operated implement mounted at a distal end of a boom includes a connection apparatus for selectively rotating the implement about an actuator axis at the distal end of the boom. The connection apparatus includes a rotary actuator and a pressurized fluid circuit for delivery of pressurized fluid through the rotary actuator to the implement. The pressurized fluid circuit includes channels establishing a fluidic connection axially through the rotating shaft of the rotary actuator. The pressurized fluid circuit facilitates passage of pressurized fluid through an internal, protected environment to the implement.

A hand-guided treatment device has a motor housing which includes a basic housing body that extends at least on a first housing side, and a remaining housing body, which is connected to the basic housing body and, together with the basic housing body, encloses a housing interior. A drive motor in the housing interior is held on the basic housing body. The basic housing body has a tool-holding device for holding a tool driven by the drive motor. The basic housing body forms a rigid motor- and tool-supporting structure which extends at least on the first housing side and on an adjoining second housing side, forming an L shape, wherein the remaining housing body forms a non-rigid remaining housing structure.

The present disclosure relates to a cutting device with a blade moving in parallel, a moving method and a plant trimmer. By the structural device, the round blade can be adjusted to be kept in vertical rising and dropping, and is always kept in parallel to the cutting mesh. By an adjustment knob, an adjustment screw is driven to rotate by a flexible shaft, so that the movable blade holder moves up and down, which completes the adjustment of the round blade in a visible region of the equipment.

A field-configurable apparatus for different aerial applications is provided. The field-configurable apparatus attaches to an aerial boom on a mobile carrier. The apparatus can perform rapid semi-precise cutting of vegetation. Additionally, the apparatus can perform more precise trimming of one or more areas (e.g., limbs) and optionally use a limb clamp to prevent cut limbs/vegetation from arbitrarily falling on objects below the cutting area. Still further, the apparatus can have a grapple or similar device attached to the end of the boom for use in relocating debris or for loading debris. Other industrial applications are also possible (e.g., commercial water blasting, deicing of planes, etc.). In each configuration, the apparatus comprises one or more rotatable or pivoting couplings to allow for rotation about one or more axis and therefore allow precise manipulation of an aerial tool assembly from an operator in the vehicle or on the ground.

A hand-held electrical power tool includes a working device for performing working function of the hand-held electrical power tool, a power device including a motor for driving the working device, a power supplying unit for supplying power to the power device, and an operating device through which a user can operate. The operating device includes an operating handle and a speed regulating device arranged beside the operating handle. The speed regulating device includes a speed regulating switch and a speed regulating operating member connected to the speed regulating switch and driving the speed regulating switch. When the rotating speed of the motor increases from zero to the maximum, the rotating angle of the speed regulating operating member is 0-360 degrees.

A pruning machine (12) for pruning vegetation growing on generally horizontal support wires. The pruning machine (12) includes a vertical shaft (22) mounted for rotation and at least one blade assembly (26) mounted on the shaft (22). The blade assembly (26) includes a plurality of blades (30) mounted to rotate with the shaft (22). The shaft (22) is threaded at least in the region where the blade assembly (26) is mounted. The vertical position of the blade assembly (26) on the shaft (22) is adjustable by an adjustment nut (56) which threadably engages the shaft (22) below the blade assembly (26) and which during adjustment, bears against the underneath of the blade assembly (26) so that rotation of the nut (56) upwardly of the shaft (22) raises the blade assembly (26) and rotation of the nut (56) downwardly allows the blade assembly to lower.

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 mobile apparatus with a fluid pressure-operated implement mounted at a distal end of a boom includes a connection apparatus for selectively rotating the implement about an actuator axis at the distal end of the boom. The connection apparatus includes a rotary actuator and a pressurized fluid circuit for delivery of pressurized fluid through the rotary actuator to the implement. The pressurized fluid circuit includes channels establishing a fluidic connection axially through the rotating shaft of the rotary actuator. The pressurized fluid circuit facilitates passage of pressurized fluid through an internal, protected environment to the implement.

Pruning robot including means for removing processionary caterpillar nests, the robot being characterized in that it is carried by a drone provided with an onboard automaton, which is equipped with an electromechanical tool consisting of a gripper associated with a cutting device intended to cut the branches supporting the nests that are to be removed.

A pruning system includes a cutting head comprising upper and lower cutting rings positioned along a bottom portion of one or more tubes. At least one of the cutting rings is adapted to rotate in a circular motion, while the other cutting ring may be adapted to remain stationary. A vacuum may be applied to suction target plant material, and the cutting head may be lowered toward the target plant material. As adjacent blades from the upper and lower cutting rings are separated in an open position, plant material may be collected in the opening defined by the adjacent blades of the cutting rings. As the blades converge, the opening may close, and plant material collected in the opening may be severed from the plant. System variables, such as blade orientation, vacuum speed, blade rotation speed, barrel size, and the cutting mechanisms, may be adjusted to accommodate different types of plant material. The pruning system may be installed on a vehicle and used with a vision system to remove materials from plant beds in a field.