An agricultural vehicle includes a chassis and a header carried by the chassis. The header includes a cutterbar with at least one cutting unit. The at least one cutting unit includes a rotary driver; a rotatable disc coupled to the rotary driver; at least one knife mount coupled to a disc surface of the rotatable disc and including a locking portion biased toward the disc surface; and a knife locked in at least one direction by the locking portion, the knife defining at least one cutting edge.

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.

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.

A clean out system of a header for an agricultural vehicle. The header includes a frame with a floor having at least one cutout for allowing an unwanted material to pass therethrough. The clean out system includes at least one door configured for pivotally connecting to the floor and selectively engaging with the at least one cutout, a latching mechanism connected to the at least one door and configured for securing the at least one door to the frame, and at least one actuating member operably connected to the at least one door and configured for selectively latching the latching mechanism and pivoting the at least one door in between an open position and a closed position.

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.

A robotic work tool system (200) comprising a robotic work tool (100) and a beacon marker (280), said robotic work tool (100) comprising a beacon sensor (175) configured to sense a signal being transmitted by the beacon marker (280), said beacon marker (280) marking an area (270) around an obstacle (260) in a work area (205) in which said robotic work tool (100) is arranged to operate, wherein said robotic work tool is configured to determine a proximity to a beacon marker (280) and to adapt its operation accordingly.

A system for detecting a damage condition associated with an agricultural machine. The system can include a component of the agricultural machine and a movement sensor configured to measure a movement parameter associated with the component. The system can include a controller communicatively coupled with the movement sensor. The controller can include a processor and associated memory. The memory may store instructions that, when executed by the processor, configure the controller to perform operations. The operations may include monitoring the movement parameter associated with the component and detecting a change in the monitored movement parameter over time that is associated with a damage pattern. The damage pattern may be indicative of damage to the agricultural machine. The operations may include automatically initiating a corrective action associated with preventing further damage to the agricultural machine when it is detected that the monitored movement parameter has experienced the damage pattern.

A system for detecting a damage condition associated with an agricultural machine. The system can include a component of the agricultural machine and a movement sensor configured to measure a movement parameter associated with the component. The system can include a controller communicatively coupled with the movement sensor. The controller can include a processor and associated memory. The memory may store instructions that, when executed by the processor, configure the controller to perform operations. The operations may include monitoring the movement parameter associated with the component and detecting a change in the monitored movement parameter over time that is associated with a damage pattern. The damage pattern may be indicative of damage to the agricultural machine. The operations may include automatically initiating a corrective action associated with preventing further damage to the agricultural machine when it is detected that the monitored movement parameter has experienced the damage pattern.

In a riding-type mower, a vehicle body includes a rear portion in which a pair of right/left vehicle body frames extend in a front-rear direction relative to the vehicle body, with a gap therebetween in a lateral width direction. A mowing device is configured to discharge mown grass rearward relative to the vehicle body such that the mown grass falls onto the ground. A cover is provided in a bottom portion of the vehicle body, at a position that is rearward of the mowing device, and covers a gap between the pair of right/left vehicle body frames.

In a riding-type mower, a vehicle body includes a rear portion in which a pair of right/left vehicle body frames extend in a front-rear direction relative to the vehicle body, with a gap therebetween in a lateral width direction. A mowing device is configured to discharge mown grass rearward relative to the vehicle body such that the mown grass falls onto the ground. A cover is provided in a bottom portion of the vehicle body, at a position that is rearward of the mowing device, and covers a gap between the pair of right/left vehicle body frames.