A Manoeuvring rod comprising a first elongated portion tubular-shaped and provided with a handle portion configured to be grasped by a user, and a second elongated portion engaged to the working tool). The elongated portions are mutually telescopically engaged in such a way to be able to freely slide one with respect to the other. A blocking/unblocking device is then provided arranged to move from a blocking configuration, in which impedes the above disclosed free sliding, to an unblocking configuration, in which, instead, allows the above disclosed free sliding. The above mentioned movement of the blocking/unblocking device from the blocking configuration to the unblocking configuration, or vice versa, is directly actuated by the user by acting on a control member positioned at the handle portion.

The present invention relates to a leaf shaking device primarily comprised of at least one control unit, at least one cable, and at least one clamp. The control unit is further comprised of a motor with a plurality of vibration levels. The cable further connects to the control unit, wherein the clamp is located at the end of the cable that is not connected to the control unit. The clamp can then be secured around the limbs or trunk of a tree and the motor can be activated such that the tree begins to vibrate. As a result, all leaves on the tree or on the limb of the tree that the clamp is attached to will fall of the tree. The vibration of the motor can further be programmed to run for a fixed period of time such that the device can be left unattended while running.

A graphical user interface is disclosed for controlling a harvesting system, the harvesting system driving each of two shaking actuator frequencies individually, the user interface setting or displaying the frequencies of the two actuators as a single point on a display—a Frequency-Frequency User Interface (FFUI). The FFUI abstracts the tuning process of shaking with independent frequency control, allowing a user to choose the parameters for shaking the tree, e.g., frequencies, duration at a given frequency, etc., all while observing the effects of the shake taking place on the tree. The FFUI employs user gestures to map the shaker eccentric speeds and directions to the x and y coordinates of a graph, with the length of time a user gesture remains at any given coordinate pair determining the time that the first and second eccentric frequencies are driven according to the values of the given coordinate pair.

A handheld work apparatus has a combustion engine (4) for driving a tool. The combustion engine (4) has an ignition device, a device for metering fuel and a control device (31). The control device (31) engages when an engagement speed (n.sub.E1, n.sub.E2) is reached, in order to limit the speed (n) of the combustion engine (4). In order to allow the speed (n) to be set in an easy manner at full throttle, the work apparatus has a device for setting the engagement speed (n.sub.E2) by the user.

A handheld work apparatus having an electric motor and a drive circuit for the electric motor. The rotation movement of the motor is converted into an oscillating movement of the work tool via a gear mechanism. The motor is situated in a circuit including at least the motor and a switch for operating the motor. To reduce wear of the gear mechanism, a control unit for operating the motor in one of two directions of rotation is provided. The control unit independently determines a selected direction of rotation for a next operating cycle as a function of a control variable. When the motor is started, the motor is started by the control unit in the direction of rotation which is associated with a value of the control variable. The control variable changes before the motor is restarted for a following operating cycle.

A multipurpose machine for cultivating trees, comprising an inverted U-shape structure that enables the machine to pass over existing trees or fruit trees to carry out pruning, disinfection or fruit picking tasks, provided at the bottom with wheels, driven by at least one motor that autonomously facilitates the movement thereof, and respective upper frames that telescopically couple to each other, being driven by means of respective cylinders to move the portion of the structure on the right with respect to the one on the left in order to vary the width of the machine. Likewise, the machine has the ability to raise or lower the upper structure of the same to adapt it to the height of the trees to be cultivated.

A device for harvesting bilberries comprises: a frame including a handgrip portion; a shaking unit, including a hook-shaped portion for grasping a branch of a bilberry plant, wherein the shaking unit is movable relative to the frame with reciprocating motion along an axis of vibration to shake the branch; a motor; a transmission unit, wherein the motor is associated with the transmission unit to vibrate the shaking unit along the axis of vibration at a variable vibrating frequency; a frequency adjustment system drivable by the operator to select the vibration frequency at least between a first frequency and a second frequency, wherein the frequency adjustment system is configured to keep the vibration frequency permanently set at the setting selected by the operator.

The present disclosure discloses a walking power control system for wolfberry picking, including a frame, a turntable, rotating rods, first gears, second gear, gear racks, supporting rods, hydraulic motors, a front traveling wheel, a left traveling wheel and a right traveling wheel. In the present disclosure, hydraulic motors rotate to drives three traveling wheels to rotate, thereby driving the frame to move, when it is necessary to turn, a turntable is rotated, the turntable rotates to drive two first gears to rotate, and the two first gears rotate to drive the supporting rods to rotate, thereby driving the left traveling wheel and the right traveling wheel to rotate, so that the traveling direction of the frame is changed. The picking speed of wolfberries is greatly improved, thereby improving the working efficiency and saving a lot of human resources.

Systems, devices, and methods are described for efficient harvesting of fruit or nuts. A two-piece harvester is disclosed that mitigates damage to fruits or nuts deposited on the ground after harvesting from the tree. The two-piece harvester may include a shaker configured to shake a tree and cause the fruits or nuts to fall and a receiver configured to collect the fallen fruits or nuts and deposit the fruits or nuts on the ground or in bins. The shaker and the receiver may each include cabs that are configured to be positioned in a plurality of different positions. The shaker may include a wheel that is extendible between a retract position and an extended position. The receiver may include chute that is configured to deposit the fruits or nuts in different locations based on the direction of travel of the receiver.

A graphical user interface is disclosed for controlling a harvesting system, the harvesting system driving each of two shaking actuator frequencies individually, the user interface setting or displaying the frequencies of the two actuators as a Value-Time User Interface (VTUI). The VTUI shows shaking parameters in the vertical axis against time in the horizontal axis, the VTUI able to be used to control the shaker in real time, to create and edit a shake pattern, and to display values of shake parameters as the shake is occurring.