Track systems for traction of a vehicle in which a spacing of laterally-adjacent ones of the track systems in a widthwise direction of the vehicle is adjustable. This may facilitate use of the vehicle in different conditions (e.g., in different field configurations, such as in different configurations of row crops, where the vehicle is an agricultural vehicle). For instance, the spacing of the laterally-adjacent ones of the track systems may be adjustable while the laterally-adjacent ones of the track systems are connected to a powertrain of the vehicle and/or without requiring use of additional parts (e.g. spacers).

A dolly for a water vessel is an apparatus that facilitates the transportation of a water vessel on land. The apparatus serves as a universal attachment for water vessels. The apparatus includes left brace assembly, a right brace assembly, a connector bar, a first roller assembly, and a second roller assembly. The left brace assembly and the right brace assembly attach onto a transom of a water vessel. The left brace assembly and the right brace assembly may be adjusted to accommodate transoms of varying heights. The connector bar mounts the left brace assembly with the right brace assembly, thereby positioning the first roller assembly and the second roller assembly. The first roller assembly and the second roller assembly uplift the water vessel and rolls the water vessel across the ground. The apparatus further includes a cradle mechanism which further supports a paddleboard or a kayak.

A foldable vehicle may include a chassis comprising a static support, a dynamic chassis frame that includes at least two substantially opposite frame parts and a folding mechanism for decreasing or increasing a distance between the at least two substantially opposite frame parts across a lateral axis of the vehicle between a folded state and an unfolded state; and a controller to control the folding mechanism.

Systems, devices, and methods for performing autonomous agricultural operations are described herein. An exemplary device may include a toolbar to which a plurality of implements may be interchangeably coupled, and a pair of parallel chassis beams mounted perpendicularly on the toolbar. At least a portion of each of the chassis beams may be telescopic and configured to be extended outward from, and retracted inward towards, the toolbar. The device may also include a plurality of drive assemblies each mounted on one of the chassis beams, and a plurality of motors corresponding to the drive assemblies and configured to drive the drive assemblies in accordance with one or more drive parameters to move the device throughout a site. The device may further include a computing device configured to automatically determine the drive parameters, and cause the plurality of motors to drive the corresponding drive assemblies in accordance with the drive parameters.

Systems, devices, and methods for performing autonomous agricultural operations are described herein. An exemplary device may include a toolbar to which a plurality of implements may be interchangeably coupled, and a pair of parallel chassis beams mounted perpendicularly on the toolbar. At least a portion of each of the chassis beams may be telescopic and configured to be extended outward from, and retracted inward towards, the toolbar. The device may also include a plurality of drive assemblies each mounted on one of the chassis beams, and a plurality of motors corresponding to the drive assemblies and configured to drive the drive assemblies in accordance with one or more drive parameters to move the device throughout a site. The device may further include a computing device configured to automatically determine the drive parameters, and cause the plurality of motors to drive the corresponding drive assemblies in accordance with the drive parameters.

A riding lawn mower having an adjustable cutting width has at least one front wheel, a plurality of rear wheels, a frame extending from the at least one front wheel to the plurality of rear wheels and a plurality of cutting decks, each cutting deck comprising a cutting blade. A motor is supported by the frame and configured to drive the cutting blades of the cutting decks. A support configured to couple the cutting decks to the frame. The support is configured to extend at least one of the cutting decks laterally from beneath the frame to adjust a cutting width provided by the blades.

A riding lawn mower having an adjustable cutting width has at least one front wheel, a plurality of rear wheels, a frame extending from the at least one front wheel to the plurality of rear wheels and a plurality of cutting decks, each cutting deck comprising a cutting blade. A motor is supported by the frame and configured to drive the cutting blades of the cutting decks. A support configured to couple the cutting decks to the frame. The support is configured to extend at least one of the cutting decks laterally from beneath the frame to adjust a cutting width provided by the blades.

An embodiment variable chassis platform includes a body part having an interior space, an extension part configured to be inserted into the interior space of the body part along a first direction that crosses an upward/downward direction and an opposite direction thereto, a fixing part configured to fix the extension part to a specific location, and a wheel part coupled to one end of the extension part.

To provide a vehicle body structure for an autonomously traveling vehicle that is distinguished for maintainability.

A vehicle body structure (1) for an autonomously traveling vehicle that travels on wheels (3) provided on a chassis (2) includes side frames (4R), (4L) that extend in a chassis longitudinal direction on both sides of the chassis with respect to a chassis width direction, first drive units (20) in each of which a drive motor (5) that is for driving the wheel (3), a reduction gear (6), and a drive shaft (7) that drives the wheel (3) are integrally configured, and second drive units (30) which each rotatably hold a drive shaft (7) that drives the wheel (3). The vehicle body structure (1) is characterized in that the first drive units (20) and the second drive units (30) are each provided so as to be integrally mountable in and dismountable from the same side frames.

A universal chassis frame is disclosed having a ladder-frame construction that is configurable to position the rear axle(s) at variable set of preset distances from the back of the cab of the vehicle to provide for customized rail/bed lengths over a range of medium/heavy classes of electric trucks. In various embodiments, the chassis frame includes a central frame having a pair of main frame rails configured to support at least two battery modules substantially within an intra-frame space defined between the pair of main frame rails. A front subframe is configured to support a cab, the front portion including a pair of upper frame members mounted above the corresponding pair of the main frame rails, and a front axle unit mounted under the front subframe. A rear subframe is configured to support at least one rear axle unit mounted under the rear subframe and any of a set of multiple configurable rear payload units via a common connection interface affixable to the main frame rails such that the location of the rear subframe with respect to the main frame is longitudinally variable at different sets of predetermined distances from the back of the cab.