The invention is a modular vehicle that is intended for a variety of operations including both military and civilian operations. The vehicle addresses the issue of performing special purpose tasks that the vehicle is asked to do. Such tasks can be accomplished by configuring the vehicle as an ambulance, as a fire-fighting vehicle, as a communications van, as a command and control vehicle, etc. Thus, the vehicle is readily adapted using standardized and customized modules that are readily attached to a standardized platform that includes an appropriate interconnection means.

The present disclosure is directed to a utility vehicle having a pivotable seat connected by a hinge to a fixed platform. The pivotable seat configured to pivot between a first position and a second position defining a standard seat location and a first wall of a cargo bay, respectively. A seatback is configured to form a second wall of a cargo bay when the pivotable seat is in the second position. First and second opposing side walls are positioned on either side of the pivotable seat. The side walls are configured to form barriers at either side of the cargo bay when the pivotable seat is in the second position.

The present disclosure is directed to a utility vehicle having a pivotable seat connected by a hinge to a fixed platform. The pivotable seat configured to pivot between a first position and a second position defining a standard seat location and a first wall of a cargo bay, respectively. A seatback is configured to form a second wall of a cargo bay when the pivotable seat is in the second position. First and second opposing side walls are positioned on either side of the pivotable seat. The side walls are configured to form barriers at either side of the cargo bay when the pivotable seat is in the second position.

An ATV is shown having a steering system comprised of a power steering unit having drive and driven pitman arms coupled to a drag link. The drive pitman arm is laterally offset from a vehicle centerline and is driven by the power steering unit. An alternate power steering system includes a pack and pinion subassembly coupled to a power steering motor, which then couples to steering arms of the ATV.

An ATV is shown having a steering system comprised of a power steering unit having drive and driven pitman arms coupled to a drag link. The drive pitman arm is laterally offset from a vehicle centerline and is driven by the power steering unit. An alternate power steering system includes a pack and pinion subassembly coupled to a power steering motor, which then couples to steering arms of the ATV.

A mobile well service unit has a structural frame with a front end and a rear end, and defining an axis between the front end and the rear end; a platform mounted at the front end or the rear end of the structural frame and configured to move up and down relative to the structural frame; and ground engaging members mounted to the structural frame and configured to permit the mobile well service unit to move laterally, relative to the axis, across a ground surface. A method of use involves translating the unit laterally.

A mobile well service unit has a structural frame with a front end and a rear end, and defining an axis between the front end and the rear end; a platform mounted at the front end or the rear end of the structural frame and configured to move up and down relative to the structural frame; and ground engaging members mounted to the structural frame and configured to permit the mobile well service unit to move laterally, relative to the axis, across a ground surface. A method of use involves translating the unit laterally.

A utility vehicle of the present invention comprises a chassis; and a R.O.P.S. provided on the chassis and surrounding a cabin, wherein the R.O.P.S. includes a pair of left and right front pillars, a pair of left and right side beams, a pair of left and right rear pillars, and a front beam and a rear beam which extend in a width direction of a vehicle body, the R.O.P.S. has a connecting portion connecting a rear end of the side beam, a side end of the rear beam and an upper end of the rear pillar, and between the connecting portion and a rear portion of the chassis, a rear support for supporting the R.O.P.S. from a rear side is disposed.

A utility vehicle of the present invention comprises a chassis; and a R.O.P.S. provided on the chassis and surrounding a cabin, wherein the R.O.P.S. includes a pair of left and right front pillars, a pair of left and right side beams, a pair of left and right rear pillars, and a front beam and a rear beam which extend in a width direction of a vehicle body, the R.O.P.S. has a connecting portion connecting a rear end of the side beam, a side end of the rear beam and an upper end of the rear pillar, and between the connecting portion and a rear portion of the chassis, a rear support for supporting the R.O.P.S. from a rear side is disposed.

A lower vehicle body structure is provided, which includes a vehicle body floor having a bottom surface part, a floor tunnel bulging upwardly from the bottom surface part of the vehicle body floor and extending in vehicle front-and-rear directions, a power transmission mechanism disposed inside the floor tunnel, a mount member supporting the power transmission mechanism from below, and seat rails disposed on the vehicle body floor and slidably supporting seats from below. The mount member and the seat rails are jointly fastened to the vehicle body floor.