A vegetation trimmer having a blade guard including a drive motor and an elongated drive shaft coupled to the drive motor, the drive shaft disposed within a shaft housing having first and second ends, the first end of the shaft housing coupled to the drive motor and a power head coupled to a second end thereof. The vegetation trimmer also including a blade guard coupled to the power head assembly, and a cutting blade 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 as well as structures near or against where the vegetation trimmer is used. The blade guard defining a plurality of shear openings.

Harvesting apparatus, with a supporting frame (12) having a longitudinal member and crossmembers, with a chassis (18) having wheels (19), with pickup members (20) which are designed as a pickup and transverse conveyor devices (21) designed as belt conveyors, wherein a respective pickup member and a respective transverse conveyor device are arranged on a first and second side of the longitudinal member (13), wherein a first shiftable crossmember (14) which is arranged on the respective side of the longitudinal member and accommodates the respective pickup member (20) and the respective transverse conveyor device (21) is shiftable about an axis (24) extending in a height direction relative to a second shiftable crossmember (15) and is furthermore shiftable via the second crossmember about an axis (25) extending in the longitudinal direction relative to a fixed crossmember (16), and wherein a respective first overload protection device (26) is positioned between the first and second shiftable crossmembers (14, 15) arranged on the respective side of the longitudinal member (13), said overload protection device triggering when a force which acts on the respective pickup member (20) and/or the respective transverse conveyor device (21) and/or the respective first crossmember (14) in counter to the harvesting direction exceeds a limit value and permitting shifting of the respective pickup member (20) and of the respective transverse conveyor device (21) rearwards about the axis (24) extending in a height direction.

A robot includes a first axle and a second axle. A first axle housing includes a first transversal axle connected to a rigid structure by a hinge having a first degree of freedom in rotation around a first axis which is vertical and a second degree of freedom in rotation around a second axis which is perpendicular to the first axis and to a first transversal axis. The first transversal axle is equipped on either side with a motor, each motor having a stator and a rotor rotatably mounted to a respective wheel to provide steering and propulsion functions.

A robotic garden tool may include an object detection sensor. Object detection data from the object detection sensor may indicate a respective position of each of one or more objects with respect to the robotic garden tool. The robotic garden tool may be configured to execute a speed control algorithm that may include determining, based on the object detection data, whether any objects are present within a detection area of the object detection sensor. The speed control algorithm also may include adjusting a speed of the robotic garden tool and/or a travel direction of the robotic garden tool based on whether and where any objects are detected within the detection area.

A robotic work tool (100) comprising a chassis (110), a body (120) and a controller (400) for controlling operation of the robotic work tool (100) and at least one three-dimensional sensor arrangement (200) for detecting relative movement of the body (100) and the chassis (110), wherein the sensor arrangement (200) comprises a sensor element (210) arranged in one of the body (120) and the chassis (110) and a detection element (220) arranged in the other of the body (120) and the chassis (110), wherein the controller (400) is configured to: receive sensor input indicating relative movement of the sensor element (210) and the detection element (220) and; determine, from the sensor input, whether a collision or a lift has been detected.

A work machine determines, when a request to restart an engine is made, whether or not a reason indicated by stop information stored in a memory is a reason related to locking of the work portion. The machine sets an operation mode of the engine and a work portion to a safe mode if it determines that the reason indicated by the stop information is a reason related to locking of the work portion. The safe mode is an operation mode for lessening damage resulting from causing the engine and the work portion to work during the work portion locked or damage resulting from an object coming into contact with the work portion during the engine and the work portion working.

An agricultural machine includes a hitching support, at least one tool or group of tools that can be transferred between an operational position and a raised position, at least one support arm that is connected to the hitching support via two joints and to the tool or group of tools at an assembly location, and a safety device for performing a safety movement under the effect of pressure. At least one first safety movement phase is carried out around the first joint or around one of the two joints. The safety device includes at least one guiding device to allow for a variation in a distance between the other of the two joints and the assembly location when the rearward rotation is carried out around the first joint.

An open-cabin riding mower includes a haptic feedback device incorporated in at least one of a driver's seat, a footrest and a maneuvering operational tool which are contact with the driver's body in the course of traveling and configured to provide a physical stimulus to the driver, a condition evaluation unit for evaluating a condition related to traveling of the mower and a device control section for controlling an operational pattern of the haptic feedback device based on result of the evaluation by the condition evaluation unit.

A robotic work tool having a chassis, a cover and a controller for controlling the operation of the robotic work tool. The robotic work tool further has a lift/collision detection device (300) connected to the controller for providing sensor input, and which Hft/coUision detection device (300) includes a first sensor element (340) and a second sensor element (345). The controller (110) is configured to receive sensor input of a distance value indicating a distance between the first sensor element (340) and the second sensor element (345), determine that a lift has been detected, fay comparing the distance value with a lift detection threshold and/or determine that a collision has been detected, by comparing the distance value with a collision detection threshold, wherein the collision detection threshold is different from the lift detection threshold.

An agricultural machine includes a hitching support, at least one tool or group of tools, at least one support arm which is connected to the hitching support by a first joint and to the tool or tool group, and which is mounted so as to pivot about a transfer axis between operational and raised positions, and a safety device making it possible to carry out a safety movement under the effect of pressure. The safety device includes a lift connected to the hitching support by a second joint. The second joint is offset relative to the first joint in the direction of travel. The safety movement can include a second movement phase during which the lift is able to move the tool or the group of tools away from the ground.