Abstract: A linkage system includes at least one adapter and a connector. Each adapter includes a clamp configured to attach to a frame of a wheelchair. Each adapter includes a pivot angle limiter configured to attach to the clamp. The pivot angle limiter includes a top plate and a bottom plate, each having a central hole through which a pivot shaft is insertable to define a pivot axis for a connector to rotate about. The pivot angle limiter includes first and second barriers, each extending between the top plate and the bottom plate. The first and second barriers define a maximum pivot angle that has a vertex at the pivot axis. The at least one adapter may include a first adapter connected to one end of the connector and to a first wheelchair, and a second adapter connected to an opposite end of the connector and to a second wheelchair.

Abstract: An article of manufacture for providing a theft-proof trailer hitch tongue is disclosed.

Abstract: A hitch assembly that is adapted for allowing the loading and unloading of cargo at the forward end of a trailer. The assembly may comprise a pivot axis, defined by a pivotable connection device, and a first plane, defined by a hitch frame, operably attached to a second plane, defined by a trailer frame of the trailer, by the pivotable connection device. The assembly can be selectively pivoted and secured between at least a first position, a second position, and a third position relative to the trailer frame, wherein the first plane and the second plane may be angularly offset from one another when the assembly is in a position other than the first position. Further, the front end of the trailer frame moves downwardly relative to the coupling means when the hitch assembly is in the second position and upwardly when the hitch assembly is in the third position.

Abstract: A trailer coupler assembly and methods of use are provided that includes a ball coupler, a rod member having a first end and an opposite second end, a trailer frame, a first pivot connection pivotably connecting the first end of the rod member to the ball coupler, such that the rod member can rotate within a vertical plane relative to the ball coupler, and a second pivot connection pivotably connecting the rod member to the trailer frame, such the trailer frame can rotate around the rod member. The trailer coupler assembly also includes a lock out member that is configured to releasably engage the first pivot connection to thereby restrict pivoting of the rod member relative to the ball coupler.

Abstract: An improved coupler for a tongue on a towed vehicle that attaches to a tow hook mounted on a towing vehicle to either pull the towed vehicle over a road or to pull the towed vehicle located on an elevated surface. The coupler includes an elongated tongue tube attached to the end of the tongue attached to the towed vehicle. Upper and lower rings are axially aligned and mounted or attached to the front surface of the tongue tube. The rings are spaced apart on the tongue tube to allow the towing vehicle to pull or push the towed vehicle over the same roadway or an elevated surface. Brackets are used between the tongue tube and the trailer tongue to prevent compression, collapse, and fore to aft or aft to fore movements. An adjustable jack is attached to the side of the tongue tube. An optional lid is provided over the top opening of the tongue tube that covers a storage compartment inside the tongue tube. An optional chock holder plate and a pair of compatible chocks may be placed inside the storage compartment.

Abstract: Method and apparatus for an adjustable trailer hitch which allows each of three differently sized user selected balls to be adjusted laterally and longitudinally so that the tongue of the trailer can be more easily attached to the towing vehicle. The trailer hitch has a body portion mounted on a slide-tube for insertion in a receiver-tube wherein the body portion has an interior space which allows the draw bar to move laterally from side to side inside the space along with a plurality of apertures so that the draw bar can be laterally adjusted using the apertures and a locking pin. When the draw bar is moved all the way to the left or right the user selected ball is automatically aligned with the receiver tube due to the effective sizing of the draw bar which is assured by the right and left stops of the body portion contacting the right and left outer edges of the draw bar.

Abstract: A hitch assembly for use by an agricultural machine, in particular a self-propelled windrower, allowing the adjustable position of a hitch for use in both the towing of implements during field operations and the transportation of implements from one location to another. The adjustable hitch advantageously provides stability during the transportation position and is up and out of the way of crop flow during field use.

Abstract: A clevis and drawbar system for coupling an implement to a tractor includes a tractor that has a drawbar. A clevis is selectively positioned on the drawbar. The clevis engages a tow bar on an implement thereby facilitating the tractor to tow the implement. A pin is selectively extended through the clevis and the drawbar. The pin engages the implement thereby facilitating the implement to be coupled to the tractor.

Abstract: A vehicle tow device for wheeled containers preferably includes a hitch insert, an upright member, at least one support member and at least two retention members. The hitch insert preferably includes a U-shaped cross. The upright member preferably includes a U-shaped cross section and a horizontal flange extending from a top thereof. The hitch insert is attached to the upright member. Each support member includes a top flange and a side flange. Each support member is pivotally engaged with the horizontal flange. Each retention member includes a first retention flange and a second retention flange. Preferably, a bottom of the second retention flange is bent upward, substantially perpendicular to itself to form a non-pivot flange. A top of the second retention flange is bent to an acute angle to form a retention flange. The second retention flange is attached to a side flange of the support member.

Abstract: A hitch apparatus includes a housing and a tow bar movably disposed within the housing. The housing includes spaced-apart first and second sections. The first section includes an elongated slot formed through a portion thereof. A tow bar guide is attached to an interior side of the first section and includes an elongated opening formed therethrough with opposite first and second portions. The tow bar includes a first guide member that extends outwardly from the tow bar at the proximal end thereof, and a second guide member that extends outwardly from a medial portion of the tow bar. The first guide member extends through the first portion of the elongated opening in the tow bar guide and is operably engaged with the slot in the first section. The second guide member is operably engaged with the second portion of the elongated opening in the tow bar guide.

Abstract: A hitch apparatus includes a housing and a tow bar movably disposed within the housing. The housing includes spaced-apart first and second sections. At least one of the sections includes an elongated slot. The tow bar includes a guide member that extends outwardly from the tow bar at the proximal end thereof and that is operably engaged with the slot. The housing may include a pair of tow bar guide doors pivotally secured between the first and second sections that limit the extent which the tow bar pivots and that guide the tow bar as it is retracted. The housing may include a pair of guide posts extending between the first and second sections and the tow bar may include a pair of guide wings that contact the guide posts to limit the extent to which the tow bar can pivot and guide the tow bar as it is retracted.

Abstract: Systems and methods for aligning a towing vehicle trailer hitch with the tongue of a trailer/towed vehicle are provided that enable a driver to know when the towing vehicle trailer hitch is close enough to the trailer tongue such that the two can be coupled. A trailer hitch includes a tow bar having a free end configured to be coupled to a trailer tongue. An alignment system includes at least one energy emitter secured to the vehicle that emits energy in the direction of the trailer tongue, and at least two sensors secured to the vehicle in spaced-apart relationship. The energy emitter(s) and sensors may be secured to the trailer or trailer hitch.

Abstract: A hitch apparatus includes a housing configured to be attached to a vehicle, a tow bar movably disposed within the housing, and a weight distribution apparatus attached to a distal end of the tow bar. The tow bar is movable relative to the housing between retracted and extended positions, and is pivotable relative to the housing when in an extended position. The weight distribution apparatus comprises a hitch member configured to receive a coupling apparatus of a towed vehicle, and at least one weight distributing member configured to extend rearwardly from the vehicle and be attached to the towed vehicle. The hitch member may be any type of coupling apparatus such as a ball coupler, a pintle hook, a cushioned pintle hook, a swivel pintle hook, a lunette ring, and a clevis pin attachment.

Abstract: A pull-type agricultural implement has a beam with drawbar hitch pivotable relative to the beam about a vertical axis and a horizontal axis extending in the travel direction. The drawbar hitch has a receptacle for a tractor drawbar. The receptacle enables pivoting of the drawbar about an axis that is horizontal and transverse to the travel direction relative to the drawbar hitch in a locked position. Guiding and adjusting plates in the receptacle allow adjustment of the receiving width of the receptacle to different drawbar dimensions. From a first position, in which the plates limit lateral play of a drawbar with large cross-section relative to the travel and working direction to a minimum, the guiding and adjusting plates are transferrable and lockable in a second position, in which the plates limit lateral play of a drawbar with small cross-section relative to the travel direction to a minimum.

Abstract: A quick release assembly for remotely actuating operative disconnection between vehicles by decoupling a hitch assembly having a telescopic and swiveling probe assembly carried in a housing assembly and mounted on the towed vehicle. In one embodiment, the release assembly includes an actuator remotely controlled from the towing vehicle that releases the components retaining the probe assembly in the housing. In another embodiment, an actuator remotely controlled from the towing vehicle decouples the entire hitch assembly from the associated vehicle. In both instances, the towing vehicle may resume movement clear of the towing vehicle. Thereafter, the probe assembly and/or the hitch assembly may be recoupled for subsequent use.

Abstract: The invention refers to a trailer coupling (10) for a towing vehicle (26), comprising a base body (12), a coupling unit (14) with a coupling element (16), that works with a counter-coupling element (18) of a trailing towing vehicle (22), whereby the coupling unit (14) relative to the base body (12) is adjusted between a coupling position and a release position, and a securing device (40), with a securing element (42), that can be adjusted between a securing position and a release position, whereby, in its securing position, it secures the coupling unit (14) in its coupling position.

Abstract: The adjustable trailer hitch assembly of the present invention is designed for attachment to the head of most commercially available trailers. The adjustable trailer hitch assembly includes a first weldment member pivotally attachable to a head of a trailer, and a second weldment member operably connected to the first weldment member for lateral movement between extended and locked positions. Collapsible extension arms operably connect the first and second weldment members providing movement between the extended and locked positions. The collapsible extension arms are positionable between a first collapsed position with the first and second weldment members adjacent one another defining the locked position, and a second extended position with the first and second weldment members separated from one another defining the extended position.

Abstract: A hitch apparatus includes a housing configured to be attached to a vehicle, a tow bar movably disposed within the housing, a hitch member assembly, and a fastener configured to removably secure the hitch member assembly to the height adjustment member at any of a plurality of selected elevations. The tow bar is movable relative to the housing between retracted and extended positions, and is pivotable relative to the housing when in an extended position. As such, a hitch member at the distal end of the tow bar has horizontal and vertical adjustment capabilities.

Abstract: The present invention comprises a trailer hitch system, for attaching a trailer to a vehicle having a winch attached to the frame of a vehicle, a hollow receiver attached to the frame of a vehicle, where the receiver has a receiver opening, which is defined by a top guide, bottom guide and at least two side beams. The winch wire attaches to the winch, travels through the receiver, out of the receiver opening and attaches to a hitch bar at a tab. When the winch is activated the winch wire pulls hitch bar and thus, the attached trailer, into the receiver opening. A bearing located on the forward facing side of the hitch bar reduces friction between the hitch bar and the receiver as the hitch bar enters the receiver opening.

Abstract: A lift arm assembly is provided for a hitch having a hitch frame adapted to be mounted to a vehicle. The lift arm assembly includes a first arm pivotally coupled to the frame and having a having a pivot bore therein. A second arm is adapted for coupling to an implement and has a pivot pin which is rotatably and slidably received by the pivot bore. The second arm is slidable with respect to the first arm from an inboard position to an outboard position. When the second arm is in its outboard position, the second arm is pivotal about the pivot pin from a lowered position to a raised position.

Abstract: The present invention comprises a trailer hitch system, for attaching a trailer to a vehicle having a winch attached to the frame of a vehicle, a hollow receiver attached to the frame of a vehicle, where the receiver has a receiver opening, which is defined by a top guide, bottom guide and at least two side beams. The winch wire attaches to the winch, travels through the receiver, out of the receiver opening and attaches to a hitch bar at a tab. When the winch is activated the winch wire pulls hitch bar and thus, the attached trailer, into receiver opening. A bearing located on the forward facing side of the hitch bar reduces friction between the hitch bar and the receiver as the hitch bar enters the receiver opening.

Abstract: Method and apparatus for an adjustable trailer hitch which allows the ball to be adjustable laterally and longitudinally so that the tongue of the trailer can be can be more easily attached to the ball of the towing vehicle. A body portion is mounted on a slide-tube for insertion in a receiver-tube wherein the body portion has an interior pocket or space which allows the draw bar having the ball mounting thereon to move laterally inside the pocket along with a plurality of apertures so that the draw bar can be laterally adjusted using the apertures and a first locking pin. The slide-tube also has a longitudinal adjustment slot in it which allows it to slide longitudinally inside the receiver-tube wherein a second locking pin holds the slide-tube in the receiver-tube allowing the entire trailer hitch to be longitudinally adjustable along the longitudinal axis of the towing vehicle.

Abstract: A hitch assembly that allows a hitch portion to be rotated between extended and retracted positions. The hitch portion may be selectively fixed in either the extended or retracted position using a lock. A release may be provided to actuate the lock. Typically, the release includes a cam that acts on a surface of a shaft to actuate the lock.

Abstract: An adjustable ball-type hitch assembly, and a method for using it. The hitch assembly is connected to a hitch receiver of a towing vehicle on one end, and to a vehicle to be towed having a ball receiver, on the other end. In a preferred embodiment, the adjustable hitch assembly may include a base attachable to the receiver, and a sliding element such as a tongue supporting the ball and pivotally attached to the base. The sliding element may include a slot or groove enabling the sliding element to move along its longitudinal axis relative to the base, and to also rotate about a vertical axis perpendicular to a horizontal plane containing at least a portion of the sliding element, enabling the ball to be moved in various directions in a substantially horizontal plane to facilitate connection of the ball to the towed vehicle.

Abstract: A quick release assembly for remotely actuating operative disconnection between vehicles by decoupling a hitch assembly having a telescopic and swiveling probe assembly carried in a housing assembly and mounted on the towed vehicle. In one embodiment, the release assembly includes an actuator remotely controlled from the towing vehicle that releases the components retaining the probe assembly in the housing. In another embodiment, an actuator remotely controlled from the towing vehicle decouples the entire hitch assembly from the associated vehicle. In both instances, the towing vehicle may resume movement clear of the towing vehicle. Thereafter, the probe assembly and/or the hitch assembly may be recoupled for subsequent use.

Abstract: A trailer coupling for tractive vehicles, in particular agricultural tractors, consisting of two vertical guidance cheeks (7), fitted with lateral spacing to the rear of the vehicle, the guidance cheeks including vertical slots (7a) and a bearing member (11) held detachably at the lower end region of the guidance cheeks, on which a coupling member (12) is arranged for attaching an implement. In the case of a prior art trailer coupling, all forces transmitted from the attached implement to the coupling member used, a ball coupling (12) for example, are conducted via the bearing member (11) into the guidance cheeks (7). Thus this involves the undesirable necessity of having to dimension the guidance cheeks in a robust manner, which in turn leads to space problems within the tail end region of the vehicle. Therefore a trailer coupling is to be created which reduces the load on the guidance cheeks (7), when the forces of the attached implement are conducted into the rear of the vehicle.

Abstract: A quick release assembly for remotely actuating operative disconnection between vehicles by decoupling a hitch assembly having a telescopic and swiveling probe assembly carried in a housing assembly and mounted on the towed vehicle. In one embodiment, the release assembly includes an actuator remotely controlled from the towing vehicle that releases the components retaining the probe assembly in the housing. In another embodiment, an actuator remotely controlled from the towing vehicle decouples the entire hitch assembly from the associated vehicle. In both instances, the towing vehicle may resume movement clear of the towing vehicle. Thereafter, the probe assembly and/or the hitch assembly may be recoupled for subsequent use.

Abstract: A coupler includes a first telescopic member having a first pair of coaxially aligned apertures, and a second telescopic member having a second pair of coaxially aligned apertures. The second pair of apertures is capable of coaxial alignment with the first pair of apertures during telescopic engagement between the first and second telescopic members. A pin member having a head is capable of insertion through the coaxially aligned first and second pairs of apertures. At least one of the second apertures is sized to receive the head therethrough to engage the first telescopic member.

Abstract: A ball hitch device mountable upon the rear of a tractor vehicle is interactive with a ball-receiving socket disposed upon a forwardly directed tongue of a trailered apparatus. The ball hitch device includes paired rigid extension arms pivotably secured to the tractor vehicle and which embrace a tubular receiver into which a hitch bar is telescopically inserted. A hitch ball extends upwardly from the rearward extremity of the hitch bar. An electrically driven winch has a lifting cable attached to the receiver. When activated, the cable causes the assembly of extension arms, receiver and hitch bar to pivot upwardly in a circular arc, thereby controllably raising the hitch ball toward engagement with the ball-receiving socket.

Abstract: A trailer hitch facilitating proper alignment and connection to the hitch coupler of a trailer. The trailer hitch includes a tow bar assembly and a throat having spaced parallel top and floor panels generally equal in spacing to a vertical thickness of the tow bar and rearwardly diverging side panels. The front of the throat is connected or connectable to an elongated tubular extension or receiver and is sized to be slidably carried within the throat assembly. A slide bar is carried between the tow bar and the throat and includes a stop which limits the distance the tow bar may be extended rearwardly from the throat and, when in the fully or a partially extended position, is movable side-to-side to facilitate proper coupling alignment between the hitch ball and a hitch coupling of a trailer.

Abstract: A fully integrated, self-contained, retrieving trailer hitch for use in coupling heavy laden trailers to large SUV's and RV's. The self-contained module is capable of being plugged directly into a vehicle tow bar hitch receiver and connected to the vehicle's electrical power supply. The module-retrieving hitch contains an integral retracting take-up reel with a cable extending through the docking housing and connected to an extendable docking guide member. The docking member which may be double reeved and adapted for removable connection to ball hitch assemblies generally used for insertion within vehicle tow bar receivers for coupling to a trailer hitch member. The docking guide member automatically locks the guide member within the docking housing upon docking. An interlock is provided for unlocking the docking member.

Abstract: A sulky apparatus and method are described. The sulky rides behind a self-propelled mower. The sulky apparatus allows the mower operator to ride behind the mower, as the self-propelled mower is guided about a lawn. Common to the sulky apparatus is a swing arm that extends from the mower to the sulky. The invention comprises a locking mechanism including a footpad having an elongated locating pin extending from the footpad. The pin acts against a coil spring. The operator while continuing to stand on the sulky, forces the footpad and pin against the bias of the coil spring. The pin is then projected into an aperture disposed in a top portion of the sulky, thus locking the mower and sulky together in straight position alignment. Once locked, the mower and sulky can be driven in reverse.

Abstract: A trailer hitch assembly that can be extended and turned from side to side to facilitate hookup of a vehicle to be towed and that can when not in use be stowed out of the way without removal from the towing vehicle is shown. The hitch assembly also serves to control fish tailing of a towed vehicle.

Abstract: An automatic trailer hitch coupling apparatus having a hitch bar receiver mounted on a platform at the rear end of a towing vehicle, said hitch bar receiver having a square cross section and a flanged rear end into which a hitch bar is removably inserted. A winch have an extendable and retractable cable is mounted on the towing vehicle proximate the receiver and a cable having a cable lead is fed outwardly from the receiver. A hitch bar for coupling within the hitch bar receiver has a front portion connected to a rear portion with a universal joint; the front portion is connected to the cable lead with a quick release and lock system. The hitch bar is integrally connected to a hitch tongue having a horizontal portion on which a hitch ball is mounted.

Abstract: A self-centering trailer hitch includes first and second telescopic arms, each of the telescopic arms having first and second opposite ends. The first ends of the telescopic arms are pivotally mounted to a hitch hood coupler for coupling the first ends of the telescopic arms releasably to the hood of a trailer hitch. The second ends of the telescopic arms are adapted to be pivotally mounted to a rear end of a towing vehicle, mountable to the vehicle forward relative to a hitch ball mounted to the vehicle. The second ends of the telescopic arms when mounted to the rear end of the vehicle are disposed on laterally opposite sides of the hitch ball.

Abstract: An improvement in or relating to a hitch assembly for connecting a trailer to a towing vehicle. The hitch assembly consists of features which are moveable in a telescopic manner and/or in a rotational manner to allow the adjustable repositioning of a coupling member of a trailer for it to be conveniently connected to a tow ball of a towing vehicle. The hitch assembly consists of ratchet type features that when a movement of the trailer is provided by the towing vehicle, the hitch assembly will move towards a condition, substantially automatically, where the connection between the trailer and the vehicle becomes substantially rigid apart from the degrees of freedom of movement normally provided by the coupling. The ratchet type features can be made in operative to allow for a user to manipulate the position of the tow coupling of the trailer so as to achieve a coupling between the trailer and the tow vehicle without the trailer needing to be in an exact location in respect of the tow coupling of the trailer.

Abstract: A system for allowing a single user to accurately gauge the distance between a trailer connecting mechanism and a trailer ball of a trailer hitch and which provides a mechanism for indicating when the trailer ball is positioned beneath the trailer attachment end that includes a user adjustable center mechanism of a U-shaped mechanism that has a pair of spaced outwardly extending elements such that when the user backs over one of the outstretched spaced elements the trailer ball is positioned beneath the trailer attachment end of the trailer.

Abstract: A hitch for coupling a towing vehicle and a trailer vehicle, particularly in situations where the vehicles are misaligned. The hitch has a tongue housing for attachment to one of the vehicles and a tongue for extension and retraction within a throat defined by the tongue housing. The tongue articulates laterally to couple misaligned vehicles. The tongue has a coupler, such as a clevis, ring or ball, on one end to effect coupling between the two vehicles. The tongue is movable to a locked position where a spring-biased pin is insertable through apertures in the tongue housing and the tongue to lock it in place. The tongue and the tongue housing have cooperating guide members to effect a smooth, guided movement of the tongue from an extended position to its retracted, locked position. The guide members have cooperating, rounded cam members and pockets which facilitate the smooth, guided movement of the tongue to its locked position.

Abstract: A hitch for coupling a towing vehicle and a trailer vehicle, particularly in situations where the vehicles are misaligned. The hitch has a tongue housing for attachment to one of the vehicles and a tongue for extension and retraction within a throat defined by the tongue housing. The tongue articulates laterally to couple misaligned vehicles. The tongue has a coupler, such as a clevis, ring or ball, on one end to effect coupling between the two vehicles. The tongue is movable to a locked position where a spring-biased pin is insertable through apertures in the tongue housing and the tongue to lock it in place. The tongue and the tongue housing have cooperating guide members to effect a smooth, guided movement of the tongue from an extended position to its retracted, locked position. The guide members have cooperating, rounded cam members and pockets which facilitate the smooth, guided movement of the tongue to its locked position.

Abstract: A self-centering trailer hitch includes first and second telescopic arms, each of the telescopic arms having first and second opposite ends. The first ends of the telescopic arms are pivotally mounted to a hitch hood coupler for coupling the first ends of the telescopic arms releasably to the hood of a trailer hitch. The second ends of the telescopic arms are adapted to be pivotally mounted to a rear end of a towing vehicle, mountable to the vehicle forward relative to a hitch ball mounted to the vehicle. The second ends of the telescopic arms when mounted to the rear end of the vehicle are disposed on laterally opposite sides of the hitch ball.

Abstract: A hitch for coupling a towing vehicle and a trailer vehicle, particularly in situations where the vehicles are misaligned. The hitch has a tongue housing for attachment to one of the vehicles and a tongue for extension and retraction within a throat defined by the tongue housing. The tongue articulates laterally to couple misaligned vehicles. The tongue has a coupler, such as a clevis, ring or ball, on one end to effect coupling between the two vehicles. The tongue is movable to a locked position where a spring-biased pin is insertable through apertures in the tongue housing and the tongue to lock it in place. The tongue and the tongue housing have cooperating guide members to effect a smooth, guided movement of the tongue from an extended position to its retracted, locked position. The guide members have cooperating, rounded cam members and pockets which facilitate the smooth, guided movement of the tongue to its locked position.

Abstract: A trailer hitch assembly for allowing a user to simultaneously extend and pivot the distal end of the trailer hitch to position the hitch ball in a desired position. The inventive device includes a support frame attachable to a vehicle, a telescoping structure pivotally attached within the support frame, and a spring-loaded locking pin attached to the support frame for selectively engaging the telescoping structure for preventing extension and pivoting movement. The telescoping structure comprises a receiver member pivotally attached within the support frame, an extending member slidably positioned within the receiver member for supporting a conventional hitch ball, a lock aperture within the extending member for catchably receiving the locking pin, at least one guide slot within the receiver member, and at least one guide pin for sliding within the at least one guide slot.