The present invention relates to a wheeled carriage, particularly a walker, including a load-bearing frame having a plurality of wheels rotatably carried thereby for support and mobility thereof. The frame carries a hydraulic fluid reservoir, and a pair of pumps having inlet and outlet ports. The pumps draw fluid through their respective inlet ports from the reservoir and return fluid through their respective outlet ports to the reservoir. Conduit is also carried by the frame for fluid communication between the reservoir and the inlet and outlet ports of the pumps. The wheels are respectively connected to each of the pumps for operating the pumps in response to the rotation of the wheels. The frame further carries a valve in the conduit that is adapted to be opened or closed by the hand strength of the user. The closed position of the valve prevents movement of the hydraulic fluid from the outlet ports of the pumps to the reservoir whereby the connected wheels are prevented from rotating.

A frame assembly removably mounts a coach member thereon, wherein the frame member assembly includes spring members to cushion the coach member mounting to the frame assembly, with the frame assembly further including first and second harness tubes to accommodate pivoting of a torso harness worn by an individual transporting the carriage structure.

A sulky cart, preferably leaving shafts with off-set forward end portions, is releasably attached to an off-set elongated sleeve member with a connector assembly on the forward end of the sleeve member. The connector assembly contains a rotatable ball with a central aperture for sliding over a harness pin secured to and extending from a harness saddle. The harness pin is provided near its outer end with a normally locked locking device, so that the cast can be hitched to the saddle harness by sliding the harness pin and locking device through the central aperture in the ball.

A walking aid for a four legged animal. The walking aid comprises a cradle attachable below the animal's hind quarters, and a support member pivotally attached to the cradle. A wheel arrangement is provided on the support member at its end remote from the cradle. Resiliency is provided for biassing the support member below the cradle.

Sulky comprising two wheels individually fastened along the same rotational axis, to a common structure provided with a driver's seat (4) and shafts (3) leading towards the draught animal. The sulky (1) consists of a construction kit comprising a plurality of substantially flat elements (2, 3, 4, 5, 6) adapted to be assembled by the end user by means of ordinary hand tools. Two of these parts are end frames (5) adapted for fastening of a wheel (2), a shaft (3), and the crossbar (6) in the same vertical plane.