Abstract: A remote towing interface is used to couple a towbar to an aircraft having a fuselage and a steerable landing gear. The remote towing interface includes a towbar coupler mounted to the aircraft and configured to releasably couple a towbar to the aircraft. The remote towing interface further includes a sensor and a controller. The sensor is configured to sense a position of the towbar relative to the aircraft when the towbar is coupled to the towbar coupler, and the controller controls the steerable landing gear according to the sensed position of the towbar relative to the aircraft.

Abstract: The invention i.a. relates to a method comprising the steps of: parking (S1) a trailer (12) by means of a towing vehicle (10), which trailer (12) is coupled to the towing vehicle (10) via a coupling element (32) of the trailer (12); the towing vehicle (10) estimating (S2) position and heading of the coupling element (32) of the parked trailer (12); transmitting (S3) the estimated position and heading of the coupling element (32) of the parked trailer (12) to a data storage device (34, 42); and automatically uncoupling (S5) the trailer (12) from the towing vehicle (10), so that the towing vehicle (10) can drive away from the parked trailer (12).

Abstract: An agricultural implement towable by an agricultural vehicle. The agricultural implement includes a frame with a front portion and a rear portion, a plurality of ground engaging tools connected to the rear portion, and a stabilization system. The stabilization system includes at least one stabilizer connected to the rear portion. The at least one stabilizer is remotely operated for selectively supporting the rear portion relative to the front portion and leveling the frame.

Abstract: A hitch configured to selectively latch to a tow bar is provided. The hitch includes a housing, a frame defining a receiving cavity, a moveable arm, an actuator configured to move the arm between an unlatched position and a latched position, and a contact sensor mounted within the housing on a slotted mounting plate. The arm is configured to engage the tow bar when in the latched position. The slotted mounting plate is configured to enable a position of the contact sensor to be adjusted based on a geometry of the tow bar. The actuator is activated by the contact sensor sensing the presence of the tow bar within the receiving cavity.

Abstract: To avoid the intervention of an operator on a direction control device with which an aircraft towing system is equipped, this system comprises a first towing sling comprising a front end connected to a towing vehicle, and a rear end connected to a first main landing gear, a second towing sling comprising a front end connected to the vehicle, and a rear end connected to a second main landing gear. The direction control device is connected to a front landing gear, and arranged between the first and second slings. The direction control device comprising a lateral direction control member having a first lateral end mounted on the first sling, and a second lateral end mounted on the second sling.

Abstract: A towing attachment is designed to facilitate the towing of bobtail trucks and similar vehicles. The towing attachment includes a tube, a hitch attachment body, a first mounting bracket, a second mounting bracket, a first locking mechanism, and a second locking mechanism. The tube is preferably a rectangular, tubular, structure that receives the first mounting bracket and the second mounting bracket. The hitch attachment body is an assembly that allows attachment onto the hitch feature of a bobtail truck or other similar vehicle. The first mounting bracket and the second mounting bracket allow engagement to a wheel lift of a towing vehicle. The first locking mechanism maintains the first mounting bracket in place along the tube. The second locking mechanism maintains the second mounting bracket in place along the tube.

Abstract: A trailer coupling mechanism includes a first end, a second end, a height adjustment assembly, a first swivel assembly, and a second swivel assembly. The first end is adapted to couple to one of a trailer and a vehicle. The second end is adapted to couple to the other of the trailer and the vehicle. The height adjustment assembly is coupled between the first and second ends and is operative to adjust the relative height between the first and second ends. The first swivel assembly is coupled between the height adjustment assembly and the first end and facilitates rotation of the first end with respect to the height adjustment assembly about a first axis. The second swivel assembly is coupled between the second end and the height adjustment assembly and facilitates rotation of the height adjustment assembly with respect to the second end about a second axis parallel to the first axis.

Abstract: The present disclosure provides an adjustable mounting system comprising a vehicle attachment section, an extender and a launcher platform.

Abstract: Provided is a one-wheel drop-floor trailer for towing motorcycles. The trailer is characterized by a provision of a two-pivot link having one pivot as a part of a universal joint of a trailer hitch and another pivot as an axis for rotational connection to a main tow bar frame. The two-pivot link allows the plane-parallel movements of the trailer platform in a vertical direction between the working, i.e., transport position, and the floor or ground level for loading/unloading the bicycle.

Abstract: A trailer coupling mechanism includes a first end, a second end, a height adjustment assembly, a first swivel assembly, and a second swivel assembly. The first end is adapted to couple to one of a trailer and a vehicle. The second end is adapted to couple to the other of the trailer and the vehicle. The height adjustment assembly is coupled between the first and second ends and is operative to adjust the relative height between the first and second ends. The first swivel assembly is coupled between the height adjustment assembly and the first end and facilitates rotation of the first end with respect to the height adjustment assembly about a first axis. The second swivel assembly is coupled between the second end and the height adjustment assembly and facilitates rotation of the height adjustment assembly with respect to the second end about a second axis parallel to the first axis.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to mount a wheel in multiple positions on a vehicle body. An example apparatus includes a bracket having a first post extending therefrom and an aperture spaced from the first post, the first post to slidably receive one of a plurality of fastener apertures in a vehicle wheel, the aperture of the bracket to receive a fastener extending through a respective other one of the fastener apertures to hold the wheel to a vehicle body in at least two different positions.

Abstract: A control system for driving a motorized closure element of a motor vehicle is provided, wherein, in order to detect operator control events, at least one sensor control means and at least one elongate distance sensor which extends along a sensor extent are provided, wherein the sensor control means drives the associated distance sensor, evaluates the sensor signals from the distance sensor or drives the associated distance sensor and evaluates the sensor signals from the distance sensor, and wherein the distance sensor detects a distance from a user. The control system can be configured such that when it is installed in a vehicle, a vehicle component can be arranged in or along the sensor extent, and that the distance sensor is designed such that it has a blind section in the region of the vehicle component, the blind section having no sensitivity or a lower level of sensitivity compared to that region of the distance sensor which adjoins the blind section.

Abstract: A translationally maneuverable trailer jack track system includes a frame having dual opposing inwardly facing elongated slotted sides. The frame is adapted to mount to a trailer frame between a ball coupler and a trailer. A carriage is mounted inside the frame with opposing side elements, each opposing side element bears on and is movably disposed within one of the dual opposing elongated slotted side elements, where the carriage has a centrally located jack collar and at least one threaded receiving element. A drive screw traverses the frame lengthwise and is threaded through the carriage threaded receiving element, where the drive screw is constrained on one end by a fastening device and has a drive cap on the other end.

Abstract: The weight distributing trailer hitch installation and storage dolly is designed to store and transport to and from a tow receiver all, but not limited to, the common weight distributing trailer hitch components listed here—the hitch-head assembly, comprised of the shank and the hitch-head with connecting balls installed, the spring bars, the sway control brake(s), and the spring tension adjusting tool. At the to receiver the weight distributing trailer hitch installation and storage dolly enables the operator to raise or lower the hitch-head assembly with spring bars attached and adjust the horizontal and vertical angles to match those of the hitch receiver of the tow receiver. The shank of the hitch-head assembly can then be inserted and secured into the hitch receiver of the tow receiver. The weight distributing trailer hitch installation and storage dolly can then be released and rolled out of the way.

Abstract: A coupling assembly couples an implement to a vehicle having a pickup hitch. The coupling assembly includes a coupler frame attached to the implement. A jack stand member is mounted on two coupling pins which project from the coupler frame. The jack stand member has a first slot which receives the first pin and a second slot which receives the second pin. The second slot forms a first shoulder which engages the second pin to support the coupler frame when the jack stand member is in a ground engaging lowered position. A block mounted to the pickup hitch is spaced apart from the jack stand member to allow it to fall to the lowered position when the coupler frame is uncoupled from the vehicle. The block engages a surface of the jack stand member to raise the jack stand member when the coupler frame is moved towards the vehicle.

Abstract: The invention relates to a swing down stabiliser leg for supporting a caravan or the like. In particular, the invention relates to a device for locking a swing down stabiliser leg in a raised or lowered position, including a handle connected to a shuttle that moves relative to a body of the device, wherein the shuttle is arrange for connection to a locking pin and the handle is coupled to the shuttle by a pivot connection whereby to move the shuttle and locking pin axially either as a result of corresponding axial movement of the handle or as a result of lever action of the handle. The invention also relates to a coupling to connect a foot plate to the leg.

Abstract: A supporting assembly for semi-trailers includes a mounting unit configured to be arranged on a trailer component and a supporting device having an outer supporting tube and an inner supporting tube and extending in a longitudinal direction, wherein the mounting unit is configured to fix the supporting device transversely to the longitudinal direction by a form fit and a force fit, wherein the mounting unit has an arrangement region comprising an outer contour of the supporting device about the longitudinal axis thereof such that the supporting device can be fixed in a force-fitting and form-fitting manner, and wherein an additional form-fit connection is provided between the supporting device and the mounting unit, which prevents a displacement of the supporting device and the mounting unit relative to each other in the longitudinal direction.

Abstract: A trailer is disclosed. The trailer may be pulled behind a vehicle such as, but not limited to, a jeep, dune buggy, or ATV. Embodiments of the trailer may include a frame and an adjustable suspension. The adjustable suspension may be used to vary the height of the trailer in order to accommodate different types of terrain and loading. By changing the height, the clearance and/or approach angle of the trailer may be varied. Additional embodiments may include a tongue connected to the frame, which tongue may have an adjustable length and/or height. Where the trailer includes a cover and a tailgate, an optional locking system may be used. In one embodiment, the locking system includes a handle that may release both the tailgate and cover. In some embodiments, the handle may be partially pulled to release the cover while fully pulling the handle may release the tailgate.

Abstract: A trailer stand includes a wheel assembly and a carriage. The wheel assembly includes a bearing, a wheel rotatable in connection with the bearing to be rotatable in a first direction, but not rotatable in a second transverse direction, a pivot connectable to the object, and a frame connected to the pivot to be pivotable with respect to the object, the frame sized and dimensioned to support the bearing at an offset with respect to the pivot axis of the pivot to thereby form caster trail, the frame having a mass distributed unequally upon left and right sides of the wheel assembly, thereby causing the frame to pivot with respect to the Earth, to a predetermined orientation, when the frame is tilted with respect to a normal orientation with respect to the Earth. The carriage supports the wheel assembly, and is pivotable with respect to the trailer.

Abstract: A wheeled carrier for manual movement of material includes a base frame with a pair of frame rails. The frame rails are turned down at the front end with a first bracket connecting the rails and providing a mounting point for at least one wheel and a receiver between the frame rails. The wheel is positioned so that it does not extend above either of the frame rails. A second bracket extends between the frame rails and includes a release mechanism positioned between the frame rails. An attachment including a yoke may be releasably mounted to the base frame. The yoke extends between the receiver of the first bracket and the release mechanism of the second bracket and engages the receiver and the release mechanism. The attachment further including a load carrying arrangement configured to rest on the frame rails above the at least one wheel without engaging the wheel.

Abstract: A device is provided for temporarily attaching a wheelbarrow to a tractor. The device includes a bracket device configured to permit left and right rotation of the wheelbarrow in relation to the tractor and to permit a wheel of the wheelbarrow to move up and down in relation to the tractor while preventing the wheelbarrow from tipping.

Abstract: A low profile trailer and method of use with mountable equipment includes an axle system allowing reduced trailer deck height, open trailer sides, and peripheral trailer stabilizer legs, said axle system comprising aligned axle structures at each of two sides of the trailer, each said axle structure including a sleeve fixedly attached to the trailer body and including an axle assembly slidably received in the sleeve such that the sleeve and axle assembly is structured to allow removal and insertion of an axle assembly on one trailer side without the necessity of replacing the axle assembly on the other trailer side.

Abstract: A towbar includes a body and a carriage assembly mounted to the body for movement between a retracted position in which wheels on the carriage assembly are elevated above the ground and a support position in which the wheels support the towbar on the ground, wherein the towbar is configured for rapid deployment of the carriage assembly from the retracted position to the support position. Rapid deployment is provided by a hydraulic actuator and an accumulator that can store fluid pressure, such that controllably discharging the accumulator drives the actuator to move the carriage assembly. A method is disclosed using the towbar to move an aircraft such that the accumulator is charged with pressure before the towbar is decoupled from nose gear.

Abstract: A folding drop leg for a trailer jack for supporting a trailer jack where added length is needed. The folding drop leg includes a base plate, a automatic locking swing plate, and a leg. The base plate is mounted to the bottom of the trailer's existing jack. The automatic locking swing plate is mounted to the base plate by use of a hinge pin and is swung upward when towing and dropped down to provide a stand for supporting the trailer when disengaged from the tow vehicle. The leg is mounted to the bottom of the automatic locking swing plate to add additional length to the existing jack leg rapidly when needed.

Abstract: A travel trailer stabilizing system having a right and left compound above-axle strut for bracing a trailer body at the axle or axles, each compound strut having an overlever arm for applying a stiffening force with a mechanical advantage to oppose any oscillatory motion of the frame on the tires. The mechanical advantage of the lever is configured to transfer a part of the weight of the trailer from the tires to the rigid struts.

Abstract: A support device for a semi-trailer or the like, that includes an outer support tube having an interior and an inner support tube, wherein the inner support tube is arranged in telescopic fashion in the outer support tube, a spindle mechanism located within the interior of the outer support tube, wherein the inner support tube is moved in the axial direction relative to the outer support tube by the spindle mechanism, and wherein the spindle mechanism comprises a multi-part spindle having a plurality of segments arranged in the axial direction and connected to one another in a flexible manner.

Abstract: A trailer adapted to be coupled to a tow vehicle and including a frame including a draw bar tube defining a longitudinal axis. The trailer includes a drawbar support pivotally coupled to the draw bar tube and rotatable relative to the drawbar tube about an axis parallel to the longitudinal axis. The drawbar support is biased toward a substantially horizontal orientation. A sliding member is receivable in the drawbar tube and is configured for movement along the longitudinal axis in response to movement of the tow vehicle. A latch member is connected to the sliding member. The latch member is configured to move in response to movement of the sliding member from a first position wherein the drawbar support is retained in a substantially vertical orientation to a second position wherein the draw bar support is free to rotate toward the substantially horizontal orientation.

Abstract: A trailer stabilizing device for stabilizing a parked freight trailer, the trailer stabilizing device comprising a frame separate from the support frame of the parked freight trailer, the stabilizing device frame having mounted thereto wheels and a hitch, the stabilizing device including a repositionable jack.

Abstract: A support device for a semi-trailer or the like, that includes an outer support tube having an interior and an inner support tube, wherein the inner support tube is arranged in telescopic fashion in the outer support tube, a spindle mechanism located within the interior of the outer support tube, wherein the inner support tube is moved in the axial direction relative to the outer support tube by the spindle mechanism, and wherein the spindle mechanism comprises a multi-part spindle having a plurality of segments arranged in the axial direction and connected to one another in a flexible manner.

Abstract: A trailer stabilizer and signaling system comprising: (a) a repositionable freight trailer stabilizer comprising a frame having mounted thereto a wheel, the repositionable freight trailer stabilizer including a repositionable jack; and, (b) a stabilizer signaler operatively coupled to the trailer stabilizer, the stabilizer signaler including a deployable signal configured to confirm the trailer stabilizer is secured under a parked freight trailer.

Abstract: A towbar includes a body and a carriage assembly mounted to the body for movement between a retracted position in which wheels on the carriage assembly are elevated above the ground and a support position in which the wheels support the towbar on the ground, wherein the towbar is configured for rapid deployment of the carriage assembly from the retracted position to the support position. Rapid deployment is provided by a hydraulic actuator and an accumulator that can store fluid pressure, such that controllably discharging the accumulator drives the actuator to move the carriage assembly. A method is disclosed using the towbar to move an aircraft such that the accumulator is charged with pressure before the towbar is decoupled from nose gear.

Abstract: A mounting (10) for a jockey wheel assembly has a first member (14), a second member (18) and a locking pin (32). A release handle (42) is connected at a first location to the locking pin (32) for drawing the locking pin (32) along a generally linear path and has a contact portion (52) remote from the first location. The contact portion (52) is for engagement with a bearing surface allowing the handle (42) to be rotated relative to the locking pin (32) about the first location whilst the contact portion (52) slides relative to the bearing surface.

Abstract: An extensible support leg includes at least two reciprocally-slidable portions, a maneuvering screw axially constrained to a first portion, a threaded volute axially constrained to a second portion and screwed on the maneuvering screw, and a rotating drive shaft which is connected to the maneuvering screw by a mechanical gear change, and is rotatable to set the maneuvering screw in rotation. The mechanical gear change includes: two first cogged crown wheels, coaxial and rotatably solid with the maneuvering screw; two second cogged crown wheels mounted coaxially and rotatably idle on the drive shaft, which enmesh directly with a respective first cogged crown wheel, realizing two gears having different transmission ratios; and a cursor, which is solidly rotatably associated to a portion of the drive shaft between the second cogged crown wheels, and is mobile, in a direction of the drive shaft axis, between first and second enmeshed positions.

Abstract: A trailer stabilizer and signaling system comprising: (a) a repositionable freight trailer stabilizer comprising a frame having mounted thereto a wheel, the repositionable freight trailer stabilizer including a repositionable jack; and, (b) a stabilizer signaler operatively coupled to the trailer stabilizer, the stabilizer signaler including a deployable signal configured to confirm the trailer stabilizer is secured under a parked freight trailer.

Abstract: A folding drop leg for a trailer jack for supporting a trailer jack where added length is needed. The folding drop leg includes a base plate, a automatic locking swing plate, and a leg. The base plate is mounted to the bottom of the trailer's existing jack. The automatic locking swing plate is mounted to the base plate by use of a hinge pin and is swung upward when towing and dropped down to provide a stand for supporting the trailer when disengaged from the tow vehicle. The leg is mounted to the bottom of the automatic locking swing plate to add additional length to the existing jack leg rapidly when needed.

Abstract: An improved jack assembly for use with a trailer tongue of a towed vehicle. The jack assembly including telescoping height adjustment of the assembly, a pivot assembly for pivoting between a vertical and horizontal stowed position, and a clip for maintaining a handle assembly in a stowed position when not in use. The jack assembly also includes the use of bushings for the telescoping tubes to enhance the sliding movement between the tubes and aid in maintaining the axial alignment of the tubes thereby extending the life of the jack assembly. The pivot assembly further includes an attachment bracket that may be rotated to accommodate at least two different sizes of trailer tongues.

Abstract: A retractable jack foot for a trailer hitch jack is disclosed, for rapidly raising and lowering the tongue of a trailer. The retractable jack foot solves multiple prior art problems discussed above in the “Description of Related Art,” such as: trailer hitch jacks not being long enough to reach the ground and still lift the trailer to a sufficient height (small distance travel); the laborious, time-consuming practice of cranking a trailer hitch jack all the way to the ground before finally causing lift in the trailer. In both cases, blocks of wood or other spacers are sometimes used to reduce the travel of the jack. The retractable jack foot of the present disclosure, solves those problems, by providing a “built in” block, or foot, pivotally attached to the bottom of the trailer hitch jack. The jack foot can be rotated into and out of position as desired, to quickly lengthen or shorten the jack.

Abstract: The present invention relates to an anti-theft system for a camper. The camper is supported at its front end by a pair of spaced-apart jacks. The system includes a barrier having a first end operatively connecting to a first one of the jacks and a second end opposite thereof. The second end of the barrier operatively connects to a second one of the jacks. The barrier extends in a horizontal direction and is positioned and configured to prevent an unauthorized vehicle from passing underneath the camper and mounting of the camper onto the vehicle.

Abstract: A low profile trailer and method of use with mountable equipment includes an axle system allowing reduced trailer deck height, open trailer sides, and peripheral trailer stabilizer legs, said axle system comprising aligned axle structures at each of two sides of the trailer, each said axle structure including a sleeve fixedly attached to the trailer body and including an axle assembly slidably received in the sleeve such that the sleeve and axle assembly is structured to allow removal and insertion of an axle assembly on one trailer side without the necessity of replacing the axle assembly on the other trailer side.

Abstract: A trailer stabilizing device for stabilizing a parked freight trailer, the trailer stabilizing device comprising a frame separate from the support frame of the parked freight trailer, the stabilizing device frame having mounted thereto wheels and a hitch, the stabilizing device including a repositionable jack.

Abstract: A method of operating a freight trailer stabilizer comprising: (a) positioning a trailer stabilizer underneath a parked freight trailer at a loading dock so the trailer stabilizer is between the parked freight trailer and the ground, the trailer stabilizer including a first powered jack; and, (b) utilizing power from a portable vehicle to reposition the first powered jack between a raised position and a lowered position, wherein the raised position does not have the first powered jack in direct contact with the ground and wherein the lowered position does have the first powered jack in direct contact with the ground.

Abstract: A support jack, in particular for supporting semitrailers, includes a vertically telescopically displaceable supporting element having an outer sleeve, and an inner sleeve that can be vertically displaced in a telescopic fashion, each sleeve having a rectangular cross-section with four sidewalls. At least the inner sleeve has a wall plate joined to two adjacent side walls with welding seams that improve the bending stiffness of the support jack. The welding seams can be located inside or outside either of the sleeves. Such a support jack can be located on the lower side of any vehicle.

Abstract: A trailer accessory featuring a first half base and a second half base slidably attached to the first half base via a sliding mechanism, the first half base can slide in a first or second direction with respect to the second half base; handles disposed on the top surface of the base near the side edges; a support platform disposed in between handles; wherein when the accessory is used, the accessory is placed under the jack stand of the trailer with the second half base contacting the ground surface, the tongue of the trailer is positioned atop the support platform, a truck is backed up such that the hitch of the truck is in close proximity to the tongue of the trailer, and when the truck is stopped, the first half base can be slid so to align the tongue of the trailer with the hitch.

Abstract: A jack assembly for adjusting the height of a trailer is provided. The jack assembly is moveable between an operable and a stowed position. The assembly includes a tube having a slot portion and a slide block moveable within the slot portion. A post connected to the slide block protrudes through an opening in the slot portion to engage a clamping mechanism. The clamping mechanism is movable between a clamped position where the slide block is clamped to the tube to prevent the jack from moving, and an unclamped position where the slide block is movable within the slot portion to allow the jack assembly to be moved between an operable position and a stowed position.

Abstract: The invention provides space saving, locking and support features for most single pole trailer tongue, having: a support leg, which has the coupler hitch on the opposite end, pivots on the tongue into a vertical position where it acts as a support for the tongue. This leg is secured vertically, using aligned brackets on both sections, by a hitch pin or locking device, so that it can be locked in place as a deterrent to theft. When in the horizontal position, the support leg is secured to the tongue by a hitch pin and may be connected to a towing vehicle. A flip-down leg, pivotally mounted on the tongue, which drops down when the securing hitch pin is removed part way, to provide temporary support for the tongue while the support leg is being moved to the vertical position.

Abstract: The hitch mounted jack adapter device provides for removable insertion into an existing receiver hitch. The device receives the jack I-beam of an existing hi-lift jack. The smooth use of the device is provided by the spaced apart first rollers and second rollers that guide the existing jack I-beam through the I-shaped jack notch of the device. The vertically spaced apart first rollers and second rollers further provide defined vertical guidance of the jack I-beam. By negating binding and significantly reducing friction, combined with the gusset disposed between the hitch insert and the riser of the jack receiver, the device further provides for safe operation through strength coupled with frictional reduction. Of importance is that the device provides for easy, uncomplicated use.

Abstract: A trailer jack stand for supporting a trailer comprising: a pedestal stand, where stand attaches to a trailer jack, said stand includes a top connecting section and a pivoting section; a center mount pin, where the mount pin attaches the stand to the jack through the top connecting section; a locking pin, where the locking pin secures the mount pin into place; a platform, where the platform attaches to the bottom of the pivoting section; and a spring assembly, where the spring assembly includes a top pivot pin extending from the top connecting section, a stand pin extending from the pivoting section and a spring attached between the pivot pin and stand pin. The pivoting section is capable of pivoting between a retracted position and an extended position, where in the extended position the stand supports the trailer.

Abstract: A front tow extended saddle is disclosed. The saddle allows a first towing truck to mount a second truck, facing forward, behind the first truck, in order to tow the second truck to a distant location. The saddle allows the towed truck to face forward during transport, thus allowing for the normal loads and stresses of movement on the towed truck. This configuration is preferable to movement with the towed truck facing-rearward, in which the typical aerodynamic surfaces of a large truck act as a drag during transport, imposing high wind loads and unusual stresses. The front tow extended saddle is also designed to minimize the required vertical rise on the towed truck, which also avoids additional stresses during loading and unloading onto the towing truck.

Abstract: A receiver extends from the top of a retractable wheel assembly to receive the lower end of a jackstand or the like. Upon exerting pressure on a foot operated plate, a wheel is extended from the bottom of a plate and locked in place with a catch to permit transport of a trailer or the like attached to the jackstand. Upon release of the catch, the wheel will retract to bring the plate into contact with the ground and immobilize the trailer.

Abstract: A towed, PTO-driven implement is equipped with a jack that can be selectively coupled to the draft tongue either in a working position at a forward region of the tongue, or in a stored position at a rearward region of the tongue. A PTO drive shaft assembly extends over the draft tongue and a pin for releasably connecting the jack to the tongue incorporates a PTO drive shaft assembly support which is positioned so as to support the PTO drive shaft assembly when the jack is in either of its working or stored positions.