A walk-behind tractor has an increased ground clearance to define a plant receiving space that has a greater height than a conventional walk-behind tractor having a straight axle. The walk-behind tractor has trailing drop arms from a frame that carry wheel axles that result in an elevated height of a driveshaft. The elevated driveshaft increases the ground clearance for taller plants to pass therebeneath during operation of the walk-behind tractor which would otherwise be too tall to pass below a conventional straight axle walk-behind tractor.

A spraying machine includes a machine body, a support frame, and a spraying portion. The support frame includes a horizontal frame having a length along a left-right direction, and a pair of vertical frames and each having a length along an up-down direction, and protruding downward from both ends of the horizontal frame. The spraying portion is supported by the support frame, and sprays a spraying material. The support frame is supported by the machine body to be rotatable around a rotation axis passing through a fulcrum portion provided on the horizontal frame and extending along a front-back direction, while maintaining a relative positional relationship between the pair of vertical frames and the horizontal frame.

An agricultural vehicle suspension may comprise a spring and a first spindle operably coupled with the spring in a spindle axial direction. A stop body may be operably coupled to the first spindle in a cylinder axial direction. The stop body may be configured to limit an axial length of travel of the suspension relative to the first spindle. The first spindle may be a steering spindle or a suspension spindle.

A machine includes a chassis, a plurality of ground-engaging elements supporting the chassis above a ground surface, a motor for driving at least one of the ground-engaging elements and a plurality of assemblies supporting the chassis on the ground-engaging elements. Each of the assemblies is configured to selectively raise and lower the chassis relative to the ground surface and includes a first attachment component for attaching the assembly to one of the ground-engaging elements, a second attachment component for attaching the assembly to the chassis, an adjustment component for shifting the first attachment component between a plurality of operating positions relative to the second attachment component. A control system allows an operator to remotely control the adjustment components of each of the assemblies.

A chassis-height adjustment system for selectively raising and lowering a chassis relative to a ground surface includes a plurality of support assemblies supporting a chassis on respective ground-engaging elements. Each support assembly has a height adjustment actuator. Each height position sensor senses an adjustment position one of the height adjustment actuators and generates a height signal. Each of the support assemblies may be mounted to the chassis by a track-width adjustment mechanism having a track-width adjustment actuator. The height adjustment system is controlled in a manner to synchronize each height adjustment actuator with the other actuators. Adjustment of one or more height adjustment actuators is slowed or stopped in the event that other actuators need to catch up. The track-width adjustment actuators may shift the position of the associated ground-engaging element laterally relative to the chassis to keep the ground-engaging elements from sliding laterally as the chassis height changes.

A wheel-mounting assembly for a utility vehicle includes a chassis and a wheel support assembly mounted to respective outboard ends of first and second telescopic axle assemblies. The first and second telescopic axle assemblies are laterally spaced from one another and are each secured to the chassis. The first and second telescopic axle assemblies each include a respective actuator arranged to control extension and retraction thereof for steering and track-width control.

An agricultural vehicle suspension may comprise a spring and a first spindle operably coupled with the spring in a spindle axial direction. A stop body may be operably coupled to the first spindle in a cylinder axial direction. The stop body may be configured to limit an axial length of travel of the suspension relative to the first spindle. The first spindle may be a steering spindle or a suspension spindle.

Provided is a traveling vehicle which is configured to be manually operable and to be capable of being prevented from collision, and which can be assembled more easily. This traveling vehicle is provided with a traveling vehicle body on which a first control unit for controlling traveling is mounted, and an operation unit which enables the manual operation of the traveling vehicle body. The operation unit is provided with a housing having a connection section removably connected to the traveling vehicle body. The housing is integral with manual operation sections enabling an input of instructive information for traveling into the first control unit, and also with an obstacle sensor for detecting an obstacle present in the direction of movement of the vehicle body and transmitting the result of detection to the first control unit.

A self-propelled machine for agriculture forms an agricultural gantry system. The machine has a support structure for receiving attachment devices, at least one drive unit with a control module, a support structure forming an agricultural gantry system and a plurality of ground supports for moving the support structure. The agricultural gantry system is convertible from a road orientation defining a driving width (FB) to a working orientation having a substantially larger working width (AB).

The present invention relates to a motorized machine having a chassis, a suspension system mechanically coupled on the one hand to a wheel of the motorized machine and on the other hand to the chassis, and a steering system configured to transmit the steering to said wheel of the motorized machine through the suspension system, the steering system being in a slide-type mechanical connection with the suspension system along the axis of the suspension system.