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.

In an embodiment, the present invention provides a stop device for limiting a vertical spring deflection of a motor vehicle leaf spring that is mounted on an axle member, the stop device including: a stop which limits a vertical movement of the leaf spring; a support structure for supporting and mounting the stop on a vehicle support; and a guiding device for receiving and guiding at least one of a cable, a line, and/or a holder. The guiding device is fastened to the support structure.

In an embodiment, the present invention provides a stop device for limiting a vertical spring deflection of a motor vehicle leaf spring that is mounted on an axle member, the stop device including: a stop which limits a vertical movement of the leaf spring; a support structure for supporting and mounting the stop on a vehicle support; and a guiding device for receiving and guiding at least one of a cable, a line, and/or a holder. The guiding device is fastened to the support structure.

A damping air spring for a heavy-duty vehicle axle/suspension system includes a bellows and a piston. The bellows has a bellows chamber. The piston is operatively connected to the bellows and includes at least two portions forming a continuous piston chamber. One of the portions of the piston is at least partially disposed within the bellows chamber and has a variable volume.

A damper includes a piston arranged in sliding engagement inside a pressure tube. The piston divides the pressure tube into a first working chamber and a second working chamber. A hydraulic compression stop assembly is positioned within the second working chamber and includes a plunger arranged in sliding engagement with a sleeve. The plunger includes a bumper cavity having a side wall. The bumper cavity extends a cavity depth from an end face of the plunger. The bumper cavity is in receipt of a compliant bumper. The bumper includes a bumper height greater than the cavity depth such that a portion of the bumper protrudes from the bumper cavity. The protruding bumper portion limits a maximum amount the bumper may be compressed before the sidewall is loaded by one of the piston and a piston rod.

A coil spring includes a wire rod including a round section portion and a flat section portion. The round section portion includes a first cross section whose cross section is round. The flat section portion includes a second cross section that is flat. The second cross section has a width greater than or equal to the diameter of the first cross section and a thickness less than the width. A polar moment of inertia of area of the second cross section is smaller than that of the first cross section. A variable section portion is formed between the round section portion and the flat section portion. The variable section portion changes its cross section from circular to flat from the round section portion towards the flat section portion.

A coil spring includes a wire rod including a round section portion and a flat section portion. The round section portion includes a first cross section whose cross section is round. The flat section portion includes a second cross section that is flat. The second cross section has a width greater than or equal to the diameter of the first cross section and a thickness less than the width. A polar moment of inertia of area of the second cross section is smaller than that of the first cross section. A variable section portion is formed between the round section portion and the flat section portion. The variable section portion changes its cross section from circular to flat from the round section portion towards the flat section portion.

A dual-axle vehicle corner assembly which may include a sub-frame, a first arm connected to the sub-frame and rotatable with respect to the sub-frame about a first arm axis, the first arm having a first axle axis about which a first wheel rotates when connected to the first arm, a second arm connected to the sub-frame and rotatable with respect to the sub-frame about a second arm axis, the second arm having a second axle axis about which a second wheel rotates when connected to the second arm, and a suspension system comprising a piston assembly interconnecting the first arm and the second arm, the piston assembly is to controllably increase and decrease a length of the piston assembly to control a distance between the first axle axis and the second axle axis.

The present invention relates to a stopper (10) for vehicle which is disposed between a vehicle body side member (31) and a wheel side member (32) to restrict a relative amount of movement of both members (31, 32). The stopper includes a cylindrical holding member (11) attached to one of both members (31, 32), and an elastic body (12) which faces the other of both members (31, 32). A folded-back portion (18) bent outward in the radial direction of the holding member (11) and folded back is formed in the holding member (11).

The present invention relates to a stopper (10) for vehicle which is disposed between a vehicle body side member (31) and a wheel side member (32) to restrict a relative amount of movement of both members (31, 32). The stopper includes a cylindrical holding member (11) attached to one of both members (31, 32), and an elastic body (12) which faces the other of both members (31, 32). A folded-back portion (18) bent outward in the radial direction of the holding member (11) and folded back is formed in the holding member (11).