A jockey wheel includes at least one ground engaging wheel; a mount for mounting the jockey wheel to a frame of a trailed vehicle; a jockey wheel post carrier for carrying a jockey wheel post; a coarse height adjuster for coarsely adjusting the height of the jockey wheel post, wherein the coarse height adjuster includes a locking selector for selecting a jockey wheel post height, the locking selector being biased into a locking position.

A jockey wheel includes at least one ground engaging wheel; a mount for mounting the jockey wheel to a frame of a trailed vehicle; a jockey wheel post carrier for carrying a jockey wheel post; a coarse height adjuster for coarsely adjusting the height of the jockey wheel post, wherein the coarse height adjuster includes a locking selector for selecting a jockey wheel post height, the locking selector being biased into a locking position.

A jack assembly including a telescopic column driven via a gear box, wherein: the gear box is coupled to a rotary input of a drive mechanism that extends and retracts the column; the gear box has only a single input gear and a single output gear that is coupled to the drive mechanism; and the input gear has a connector adapted to be engaged and driven by a portable, hand-held power tool. A jack assembly with a gear box for use as a jockey wheel for attachment to a towed vehicle, to raise and lower a draw bar of the vehicle is also provided.

A jack assembly including a telescopic column driven via a gear box, wherein: the gear box is coupled to a rotary input of a drive mechanism that extends and retracts the column; the gear box has only a single input gear and a single output gear that is coupled to the drive mechanism; and the input gear has a connector adapted to be engaged and driven by a portable, hand-held power tool. A jack assembly with a gear box for use as a jockey wheel for attachment to a towed vehicle, to raise and lower a draw bar of the vehicle is also provided.

A jack assembly is shown and describe. The jack assembly may include a first tube having first and second end portions and a central portion between the first and second end portions, and a second tube positioned within the first tube and movable with respect to the first tube. The jack assembly may also include an expanded portion on the first tube, the expanded portion having a larger inner diameter than an inner diameter of the central portion, and a bushing attached to the expanded portion, where the bushing generally prevents contact between the first and second tubes.

A jack assembly is shown and describe. The jack assembly may include a first tube having first and second end portions and a central portion between the first and second end portions, and a second tube positioned within the first tube and movable with respect to the first tube. The jack assembly may also include an expanded portion on the first tube, the expanded portion having a larger inner diameter than an inner diameter of the central portion, and a bushing attached to the expanded portion, where the bushing generally prevents contact between the first and second tubes.

A vehicle stand includes: first, second, third, and fourth support portions which support respective wheels of a vehicle; a first stand part which includes the first support portion and the second support portion; and a second stand part which includes the third support portion and the fourth support portion. Further, in the first stand part, the first support portion or the second support portion is movable in the width direction of the vehicle, and in the second stand part, the third support portion and the fourth support portion are movable in the longitudinal direction of the vehicle and the third support portion or the fourth support portion is further movable in the width direction of the vehicle.

A vehicle stand includes: first, second, third, and fourth support portions which support respective wheels of a vehicle; a first stand part which includes the first support portion and the second support portion; and a second stand part which includes the third support portion and the fourth support portion. Further, in the first stand part, the first support portion or the second support portion is movable in the width direction of the vehicle, and in the second stand part, the third support portion and the fourth support portion are movable in the longitudinal direction of the vehicle and the third support portion or the fourth support portion is further movable in the width direction of the vehicle.

A parked freight trailer stabilizer and restraint comprising: (a) a kingpin receiver configured to lock onto a kingpin of a parked freight trailer; (b) a jack operatively coupled to the kingpin receiver, the jack repositionable between a retracted position and an extended position; (c) a tail hold operatively coupled to the kingpin receiver, the tail hold repositionable between a stowed position and a restraining position, the tail hold configured to engage a ground mount; and, (d) a transport receiver configured to engage a transport vehicle.

An overload protection in a drive unit for a steady or jack for a caravan comprises an electro-mechanical control system. A spindle is driven by a motor through a gearbox, wherein the motor is controlled through a power supply. A control device in the system comprises a movable part slidably seated on an output shaft of the gearbox, where the movable part is connected with the spindle. Movement between the shaft and the sliding part is counteracted by springs. The slidable part is provided with actuating points that may contact switches by axial movements. When a nut on the spindle reaches an end position, a reactive force in the spindle will cause the part to move against the force of springs, eventually actuating a switch and thereby causing interruption of the circuit, thereby protecting motor and engagement between nut and spindle from electric and mechanical overload.