A stone trap assembly including an entrance and an exit. The entrance receives objects from a crop flow path for accumulation into the assembly during a harvesting operation, and the exit allows evacuation of the accumulated foreign objects out of the assembly during an evacuation operation. The assembly further includes a door configured to be rotatable around a first rotation axis, substantially transverse to the crop flow path, for movement along a door movement trajectory between a closed position and an evacuation position, and an impeller for forcing the accumulated foreign objects towards the exit. The impeller is configured to be rotatable around a second rotation axis, substantially transverse to the crop flow path, for movement along an impeller movement trajectory between a retracted position and an extended position closer towards the exit. The door and impeller are separately movable during at least a part of the trajectories.

A stone trap assembly including an entrance and an exit. The entrance receives objects from a crop flow path for accumulation into the assembly during a harvesting operation, and the exit allows evacuation of the accumulated foreign objects out of the assembly during an evacuation operation. The assembly further includes a door configured to be rotatable around a first rotation axis, substantially transverse to the crop flow path, for movement along a door movement trajectory between a closed position and an evacuation position, and an impeller for forcing the accumulated foreign objects towards the exit. The impeller is configured to be rotatable around a second rotation axis, substantially transverse to the crop flow path, for movement along an impeller movement trajectory between a retracted position and an extended position closer towards the exit. The door and impeller are separately movable during at least a part of the trajectories.

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.

A conditioner roller vibration sensing mechanism having first and second rotatable conditioner rollers spaced apart in close proximity to each other and between which cut crop can be directed as the rollers rotate during operation. The first roller is shiftable with respect to the second roller for adjusting the spacing between the rollers. The rollers vibrate when the rollers are spaced in such close proximity to each other that they contact each other as they rotate. An arm pivotally mounted to a frame supports the first roller, and the frame supports the second roller. The arm is movable to shift the first roller with respect to the second roller. An accelerometer is operatively coupled to the rollers for sensing the vibration created when the first and second rollers are positioned so close to each other to contact each other.

A conditioner roller vibration sensing mechanism having first and second rotatable conditioner rollers spaced apart in close proximity to each other and between which cut crop can be directed as the rollers rotate during operation. The first roller is shiftable with respect to the second roller for adjusting the spacing between the rollers. The rollers vibrate when the rollers are spaced in such close proximity to each other that they contact each other as they rotate. An arm pivotally mounted to a frame supports the first roller, and the frame supports the second roller. The arm is movable to shift the first roller with respect to the second roller. An accelerometer is operatively coupled to the rollers for sensing the vibration created when the first and second rollers are positioned so close to each other to contact each other.

An autonomous lawn mower is described which is provided with boundary information of a region, explores the region, and based on information collected while exploring, is configured to mow the region in accordance with a mow pattern. Exploration may be performed based on random motions, striping, etc. Sensor data captured during exploration is captured in order to determine the presence of any objects within the region (e.g., trees, manmade objects, lakes, and the like). Sensor data and boundary information is used to optimize a mow pattern for the lawn mower to follow when mowing the region. Additional sensor data captured while mowing may be used for obstacle avoidance, monitoring of the system, or otherwise generating notifications.

A rotary vegetation cutting unit having: a frame having a drive shaft; at least one cutting element that moves with the frame; and a debris blocking assembly on the frame with a unitary part that moves relative to the frame in opposite directions around an operating axis. The unitary part is configured to deflect away from the at least one cutting element objects approaching the at least one cutting element in a radial direction. The rotary vegetation cutting unit further has a bearing assembly including: a) a bearing that guides movement between the unitary part and the shaft; and b) a holder for the bearing. The rotary vegetation cutting unit is configured so that any debris spaced radially from the rotary vegetation cutting unit is required to traverse a non-straight path to contact the bearing.

A plant stalk stomper assembly is operable to be mounted relative to a toolbar of a row crop header for advancement over the ground in a forward travel direction. The stomper assembly includes a frame and an elongated stomper skid plate operable to engage the ground as the stomper assembly is advanced in the forward travel direction. The skid plate presents an attachment section along which the skid plate is mounted relative to the frame. At least part of the skid plate includes a unitary plate element that depends below the attachment section to present a lowermost ground-engaging margin. The unitary plate element includes a deformation region located between the attachment section and the ground-engaging margin, with the unitary plate element operable to bend along the deformation region in response to relative movement between the attachment section and the ground-engaging margin.

A plant stalk stomper assembly is operable to be mounted relative to a toolbar of a row crop header for advancement over the ground in a forward travel direction. The stomper assembly includes a frame and an elongated stomper skid plate operable to engage the ground as the stomper assembly is advanced in the forward travel direction. The skid plate presents an attachment section along which the skid plate is mounted relative to the frame. At least part of the skid plate includes a unitary plate element that depends below the attachment section to present a lowermost ground-engaging margin. The unitary plate element includes a deformation region located between the attachment section and the ground-engaging margin, with the unitary plate element operable to bend along the deformation region in response to relative movement between the attachment section and the ground-engaging margin.