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.

In a riding mower having a frame supported on front and rear wheels, a mower deck supported beneath the frame, a chair on said frame and a source of motive power also supported on said frame and including an improved suspension system with an articulating front axle that substantially isolates the front wheels from the frame of the lawnmower to thereby dampen vibrations transmitted to the operator as the vehicle traverses the ground.

The invention disclosed herein comprises a vehicle having improved suspension systems for wheels, motorized wheels and the seat of the user. The wheel suspension system includes a sleeve housing a non-round core snugly surrounded by an elastomeric shock-absorption material. Since both ends of the sleeve have downstanding arms forming the forks supporting a caster axle, irregularities in the terrain encountered by the caster exert torsion upon the core; embedding the core in elastomeric material dampens the shock. The suspension system for the wheel assembly (including any motorized drive shaft) essentially includes pivot-mounting the wheel assembly (wheel-motor) beneath the chassis frame, so that irregularities in the terrain encountered by the drive wheel cause the wheel assembly to flex inwardly (for bumps) or outwardly (for holes); in the resting position there is an elastomeric bumper or compression spring horizontally mounted adjacent to a stop-plate on the pivoting cradle carrying the wheel assembly (or wheel-motor), so that further inward flexion is dampened. The seat suspension system includes elastomeric bumpers essentially acting as fulcrums, to dampen shock by absorbing it directly and by cantilevering the seat for further shock absorption.

The present disclosure provides a suspension system, and a chassis with the same. The system includes: a fixing frame having an opening; a suspension frame disposed at the opening; and a driving wheel rotationally coupled to the suspension frame. In which, two ends of the suspension frame are respectively disposed on two ends of the fixing frame at the two sides of the opening to be selectively moved up and down along a height direction of the fixing frame, and two elastic members are respectively disposed between each of the two ends of the suspension frame and the corresponding end of the fixing frame at the two sides of the opening. In the present disclosure, the fixing frame and the suspension frame can move with respect to each other in a vertical direction, and the resetting adjustment is realized through the elastic member.

In a riding mower having a frame, a mower deck supported beneath the frame, a chair on said frame and a source of motive power also supported on said frame and including two hydraulic transaxles depending beneath the frame to each selectively rotate a drive wheel. The frame is supported on forward and rear wheel assemblies with a supporting wheel. The transaxles are supported beneath the frame and pivotally secured thereto by a flange captivating vibration pillows and proximate the driven wheel and an inner pivot rod secured to the frame by apertures in downwardly depending tabs.

A front independent suspension assembly for outdoor power equipment includes a first joint, a first wheel coupled to the joint, a first longitudinal arm pivotably coupled to the joint, a first lateral arm pivotably coupled to the joint, and a second lateral arm pivotably coupled to the joint. The second lateral suspension arranged substantially parallel to the first lateral suspension arm. The pivotal coupling between the joint and each of the first longitudinal arm, the first lateral arm, and the second lateral arm enables the first wheel to independently displace about a vertical axis

A regressive suspension spring system for a farm implement including a spring arm, a rocker arm, a wheel arm rotatably coupled to the farm implement at a first end and rotatably coupled to the rocker arm at a second end at a first pivot, one or more dogbone links rotatably coupled to the spring arm at a first end of the one or more dogbone links at a second pivot and rotatably coupled to the rocker arm at a second end of the one or more dogbone links at a third pivot; and a spring disposed between the rocker arm and the spring arm. An attachable farm implement including a regressive suspension spring system, such as a rotary cutter. A powered machine including a regressive suspension spring system.

Power equipment such as a riding mower 2 is provided with a center pivot axle 16 for non-driven wheels 9 thereof and a rigid axle 14 for driven wheels 8. A control unit 1 of the power equipment is configured to accelerate the left driven wheel when a right end up roll angle of the center pivot axle is detected by an axle sensor 25, and to accelerate the right driven wheel when a left end up roll angle of the center pivot axle is detected by the axle sensor when substantially no steering input of a steering device 22 is detected by a steering sensor 24 so that the power equipment may maintain a straight course.

Front and rear independent suspension mechanisms accommodating an increased range of motion to better absorb shock originating at the wheels of a riding mower to insulate the operator and reduce stress on the mower chassis and other mechanical components. The front suspension can include a front axle with pivot pockets allowing 360 degree rotation of pivots engaged within the pockets, thereby providing a greater range of absorption of shock entering the front axle at varying angles. The rear suspension can include a vertically pivoting transmission platform, providing for controlled vertical motion in the transmission while the transmission is powered by an engine by way of a belt assembly.

Ride-on equipment includes a pair of front wheels, a pair of rear wheels, a main frame, a subframe pivotally coupled to the main frame about a pivot axis, a power source, and a transaxle assembly. The power source is coupled to and supported by the main frame and includes a drive pulley. The transaxle assembly is configured to pivot with respect to the power source, is operably coupled to the pair of rear drive wheels, and includes at least one driven pulley. The drive pulley and the at least one driven pulley are operably coupled by a belt such that the at least one driven pulley of the transaxle assembly is configured to be driven by the drive pulley of the source via the belt.