An attachment system for an agricultural vehicle including a feeder housing and a header. The attachment system includes at least one feeder connecting member configured for being located on and movably connected to the feeder housing, and at least one header connecting member configured for being located on the header. The at least one feeder connecting member is automatically connectable and securable to the at least one header connecting member as the feeder housing lifts the header.

Various embodiments of a grounds maintenance vehicle are disclosed. The vehicle includes a frame and a control tower disposed at or near a rear end of the frame. The control tower includes a support structure that defines an interior space of the control tower and a nonplanar removable skin connected to the support structure. The removable skin includes a front side disposed over a front side of the support structure and a lateral side disposed over at least one of a left side or a right side of the support structure. A portion of at least one of the front side or lateral side of the removable skin is disposed above an uppermost surface of the prime mover. Further, the removable skin is adapted to be at least partially removed from the support structure to facilitate additional access to the interior space of the control tower.

The present invention provides a riding lawn mower comprising a frame, a mowing device mounted to the bottom of the frame, a functional unit attached to the front of the frame, and a motor group together with a power supply mounted to the frame. The riding lawn mower also comprises a connecting device connecting the frame and the functional unit. The connecting device comprises a first connector attached on the front of the frame, a second connector attached to the functional unit, and a third connector adapted for fixedly connecting the first connector and the second connector, the first connector and the second connector respectively defining through-holes thereon, the third connector extending through the through-holes of the first and the second connectors to fixedly connect the first and the second connectors.

A latch mechanism is used with agricultural equipment, such as a mower, for securing the header of the mower to the tongue during transport. A pivoting catch is mounted on the trail frame on which the header is mounted. A receiver for the catch is mounted on the tongue. During mower transport the catch is biased into engagement with the receiver by a first spring and secures the header to the tongue in a parallel orientation. When the mower configuration is changed to operational mode the catch is disengaged from the receiver using a second spring attached to the catch. A cable attaches the second spring to a wheel arm of a field wheel. Deployment of the field wheel into the operation mode draws the cable and second spring into tension, overcoming the biasing force of the first spring and pivoting the catch out of engagement with the receiver.

One apparatus includes a processor and a radio transceiver that receives a set of reference signals transmitted from transmission point. The processor selects a subset of beams from a plurality of orthogonal beams based on the received set of reference signals and computes sets of amplitude and phase parameters for one or more channel compression matrices. In some embodiments, each channel compression matrix corresponds to one transmission layer of a multiple-layer transmission and each channel compression matrix is comprised of one or more column vectors. The processor controls the radio transceiver to send indications of the sets of amplitude and phase parameters.

A lift detection arrangement in a robotic lawnmower for detecting a lift of a body of the robotic lawnmower relative to a chassis of the robotic lawnmower. The lift detection arrangement includes a collision absorber; and a sensor arrangement including a spring, a movable part, a metal plate and a sensor. The collision absorber is screwed to two plastic parts and arranged to allow a displacement of the body relative to the chassis in a collision plane during a collision between an obstacle and the robotic lawnmower, but not in a vertical direction. The moveable part is arranged to provide a displacement of the body relative to the chassis in a lift direction during a lift of the body. The sensor is configured to sense the distance to the metal plate that is fixed to the moveable part and to trigger a cut off of power to a cutting blade of the robotic lawnmower if the distance becomes greater than a predetermined distance.

A grass mowing machine includes a vehicle body frame, a mower deck incorporating a rotary cutter blade, a coupling mechanism for coupling the mower deck to the vehicle body frame with allowing a lateral displacement of the mower deck in a vehicle body transverse direction, a mower electric motor attached to the mower deck and configured to feed rotary power to the rotary cutter blade and a displacement operation mechanism MV for laterally displacing the mower deck in the vehicle body transverse direction in operative association with the coupling mechanism.

An agricultural machine includes a frame, and a lifting unit configured to vary a height of an operating unit with respect to a supporting surface for the machine. The lifting unit includes hydraulic cylinder with a liner and first and second pistons both slidingly housed inside the liner and arranged in series to define first and second chambers inside the liner, wherein the first and second pistons are controllable independently. The lifting unit includes a pressure stabilizer in fluid connection with the first chamber and that controls a pressure in the first chamber so that the first piston moves therein as a force generated on the first piston varies. A second control element for the second chamber carries out a volumetric control of the second chamber to control a position of the second piston regardless of a pressure inside the second chamber.

Various embodiments of a grounds maintenance vehicle are disclosed. The vehicle includes a frame and a control tower disposed at or near a rear end of the frame. The control tower includes a support structure that defines an interior space of the control tower and a nonplanar removable skin connected to the support structure. The removable skin includes a front side disposed over a front side of the support structure and a lateral side disposed over at least one of a left side or a right side of the support structure. A portion of at least one of the front side or lateral side of the removable skin is disposed above an uppermost surface of the prime mover. Further, the removable skin is adapted to be at least partially removed from the support structure to facilitate additional access to the interior space of the control tower.

A suspension for a mower includes a stationary part, a movable part, and at least one cutting unit. The moveable part is connected to the stationary part via a hydraulic actuator such that an actuation of the hydraulic actuator displaces the movable part in relation to the stationary part. Displacement of the movable part includes a vertical component of displacement of the movable part. At least one cutting unit is mechanically connected to the movable part.