A suspension 4 includes a suspension arm 41 that couples a knuckle 3 to a vehicle body frame 1 and swings relative to the vehicle body frame 1. The suspension arm 41 has a curve 8 to avoid contact with other components. The curve 8 is positioned closer to the vehicle body frame 1 with respect to the center of the suspension arm 41 in a longitudinal direction thereof.

A frame for an off road vehicle includes main beams establishing a base plane. Mounting beams, which can be used to support forces from the swing arm of a rear suspension, are spaced outside the main beams and within the base plane, running longitudinally in line with the swing arms of the rear suspension. Right and left longitudinal beams start within the base plane, but rise to their trailing ends so as to not interfere with the suspension travel of the swing arms as they extend back inward over the swing arms. Front and rear support columns can further attach into, secure and support the mounting beams and the longitudinal beams. All of the beams and columns can be formed by cutting cylindrical tubing to length and then curving the cylindrical tubing, each piece within a single plane.

The present invention relates to all terrain vehicles having at least a pair of laterally spaced apart seating surfaces.

A suspension device for a vehicle of the present invention comprises a knuckle supporting a wheel, an upper arm vertically rotatably connected to a vehicle body and pivotally supporting an upper portion of the knuckle, a lower arm provided below the upper arm and vertically rotatably connected to the vehicle body, and a coupling rod coupling the upper arm and the lower arm, wherein the coupling rod is configured to slant in a vehicle longitudinal direction and be rotatably connected to the upper arm and the lower arm, respectively.

An outdoor power equipment unit having a frame including at least one laterally-extending structural member and at least a pair of opposite, longitudinally-extending side structural members, a first front wheel assembly, and a second front wheel assembly. The unit also includes a first pair of substantially parallel, laterally-extending suspension arms pivotally coupled to the first front wheel assembly to form a first 4-bar linkage arrangement, and a second pair of substantially parallel, laterally-extending suspension arms pivotally coupled to the second front wheel assembly to form a second 4-bar linkage arrangement. The unit further includes at least one longitudinally-extending first side suspension arm coupled to the first front wheel assembly and to a first one of the longitudinally-extending side structural members, and at least one longitudinally-extending second side suspension arm coupled to the second front wheel assembly and to a second one of the longitudinally-extending side structural members.

The present invention relates to all terrain vehicles having at least a pair of laterally spaced apart seating surfaces.

A bearing device includes two co-axially arranged radial spherical bearings and can be used for mounting a pivoting swing arm of a vehicle suspension to a vehicle frame. By using the two radial spherical bearings together the pivot attachment only has a single degree of freedom. The radial spherical bearings are positioned against shoulders in a sleeve of the swing arm and around a spacer sleeve. One or more lubricant grooves are formed at the sliding interface of the bearings. A bushing with a lip holds a lubricant seal for each bearing, and a dust cover protects each lubricant seal. A pivot pin rod is inserted through openings in the vehicle frame and through the two bearings and other components, and is tightened in place such as with a nut.

A system and method for independent suspension for a mower, including a frame having a front structural member and respective side structural members, a first front wheel assembly, and a second front wheel assembly. The system also includes a first suspension arm pair having a first suspension arm and a second suspension arm, each pivotably coupled at one end to the front structural member and at another end to the first wheel front assembly such that the second suspension arm is vertically offset from the first suspension arm. The system also includes a second suspension arm pair having a third suspension arm and a fourth suspension arm, each pivotably coupled at one end to the front structural member and at another end to the second front wheel assembly such that the fourth suspension arm is vertically offset from the third suspension arm.

A suspension structure of a utility vehicle includes a frame, a wheel, and a trailing arm including an arm extending anteroposteriorly and supported by the frame, a knuckle rotatably supporting the wheel, and a rotary shaft configured to angularly displace the knuckle in a vehicle width direction with respect to the arm.

A vehicle may include a CVT unit or a power source which requires ambient air. An air inlet for an air intake system coupled to the CVT unit or the power source which requires ambient air may be provided in a side of a cargo carrying portion of the vehicle. The vehicle may include a rear radius arm suspension.