An expandable cargo bed system for a vehicle includes a front shell having a front shell first sidewall. The front shell first sidewall includes at least one cargo bed access passage extending between a first side of the front shell first sidewall and a second side of the front shell first sidewall opposite the first side. A rear shell is operably coupled to the front shell so as to be movable with respect to the front shell between a retracted position and an extended position so as to vary a length of the cargo bed. The rear shell has a rear shell first sidewall. The rear shell first sidewall is structured to cover the at least one cargo bed access passage when the rear shell is in the retracted position. The rear shell first sidewall is also structured so that the at least one cargo bed access passage is exposed when the rear shell is in the extended position.

An autonomous self-driving assembly for confined regions. The assembly is configured to move within and through narrow spaces as well as larger wider spaces. Once more, the assembly may support the carrying out of load-based applications even within the wider spaces. The assembly includes bracing capacity within such wide spaces to facilitate the carrying out of such load-based applications.

An autonomous self-driving assembly for confined regions. The assembly is configured to move within and through narrow spaces as well as larger wider spaces. Once more, the assembly may support the carrying out of load-based applications even within the wider spaces. The assembly includes bracing capacity within such wide spaces to facilitate the carrying out of such load-based applications.

Methods, apparatus, systems and articles of manufacture are disclosed for scalable vehicle platforms. An example vehicle chassis disclosed herein includes a right front chassis portion including a first longitudinal member, and a first crossmember attachment locator disposed on the first longitudinal member. The example vehicle chassis includes a left front chassis portion including a second longitudinal member and a second crossmember attachment locator disposed on the second longitudinal member, wherein the vehicle chassis has a first width when a first crossmember is coupled to the first and second crossmember attachment locators and wherein the vehicle chassis has a second width greater than the first width when a second crossmember is coupled to the first and second crossmember attachment locators, the second crossmember longer than the first crossmember.

Methods, apparatus, systems and articles of manufacture are disclosed for scalable vehicle platforms. An example vehicle chassis disclosed herein includes a right front chassis portion including a first longitudinal member, and a first crossmember attachment locator disposed on the first longitudinal member. The example vehicle chassis includes a left front chassis portion including a second longitudinal member and a second crossmember attachment locator disposed on the second longitudinal member, wherein the vehicle chassis has a first width when a first crossmember is coupled to the first and second crossmember attachment locators and wherein the vehicle chassis has a second width greater than the first width when a second crossmember is coupled to the first and second crossmember attachment locators, the second crossmember longer than the first crossmember.

A wheelchair comprises a base assembly and a tilt assembly supported on the base assembly. The base assembly has a wheelbase and a wheel track. Each of the wheelbase and wheel track is independently adjustable. The tilt assembly is unchanged when either the wheelbase or wheel track is adjusted.

A wheelchair comprises a base assembly and a tilt assembly supported on the base assembly. The base assembly has a wheelbase and a wheel track. Each of the wheelbase and wheel track is independently adjustable. The tilt assembly is unchanged when either the wheelbase or wheel track is adjusted.

An apparatus for locking chassis frames includes a locking assembly configured to be positioned at one end of a first chassis frame; and a receiving unit configured to be positioned in a second chassis frame corresponding to the first chassis frame in a longitudinal direction, and configured such that at least a part of the locking assembly is configured to be inserted into the receiving unit. The locking assembly includes a cylinder housing configured to be positioned in the first chassis frame, a locking unit moved in the cylinder housing, and a first switch part positioned at one end of the cylinder housing, and configured to drive a fluid pressure unit when the second chassis frame comes into contact with the first chassis frame.

An apparatus for locking chassis frames includes a locking assembly configured to be positioned at one end of a first chassis frame; and a receiving unit configured to be positioned in a second chassis frame corresponding to the first chassis frame in a longitudinal direction, and configured such that at least a part of the locking assembly is configured to be inserted into the receiving unit. The locking assembly includes a cylinder housing configured to be positioned in the first chassis frame, a locking unit moved in the cylinder housing, and a first switch part positioned at one end of the cylinder housing, and configured to drive a fluid pressure unit when the second chassis frame comes into contact with the first chassis frame.

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).