Horizontal Pivot With Vertical Or Universal Pivots Patents (Class 280/494)
  • Patent number: 6612604
    Abstract: A tow bar apparatus, that allows a towing vehicle to tow a towed vehicle, has a hitch member, a pair of tow bars, and a pair of socket members. The hitch member is adapted to engage a tow bar receiver of the towing vehicle. The pair of socket members are adapted to be attached to the towed vehicle. Each of the pair of tow bars includes a plate ball member at a first end for pivotally engaging one of the pair of socket members. Each of the pair of tow bars further includes a second end, the second ends of the pair of tow bars being joined to form a hitch ball member that pivotably and rotatably engages the hitch member.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: September 2, 2003
    Inventor: John Greaves
  • Patent number: 6536793
    Abstract: A double-acting, weight distributing trailer hitch includes a drawbar assembly and a hitchhead assembly. The drawbar assembly is releasably connected to a tow vehicle and includes a first coupling component at its rearward end. The hitchhead assembly includes a second coupling component and a rearwardly extending drawbar extension, which are pivotably connected along substantially vertical axis by a yoke. The drawbar extension is pivotally connected to the yoke by a cam. The drawbar extension is also mounted pivotably to the hitch ball along a first horizontal axis that is transverse to the direction of travel. A rearward portion of the drawbar extension is pivotably interconnected to the trailer along a second horizontal axis, which is parallel to the first horizontal axis and located behind the hitch ball. This creates an overlap between the forward end of the trailer and the drawbar extension.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: March 25, 2003
    Inventor: Frank T. Sargent
  • Patent number: 6533061
    Abstract: A bolt-together hitch for a machine having articulatable first and second sections, including a generally annular yoke member of cast steel having a cylindrical portion which is trunnion mounted by bearings in a longitudinal bore formed by the first section and a tube member of forged steel bolted end to end to the yoke member, the yoke member integrally forming brackets to provide an articulated pivot joint with the second section.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: March 18, 2003
    Assignee: Caterpillar Inc.
    Inventors: Terence Fairless, Anthony J. Pollock
  • Patent number: 6502847
    Abstract: A tow bar apparatus, that allows a towing vehicle to tow a towed vehicle, has a hitch member, a pair of tow bars, and a pair of socket members. The hitch member is adapted to engage a tow bar receiver of the towing vehicle. The pair of socket members are adapted to be attached to the towed vehicle. Each of the pair of tow bars includes a plate ball member at a first end for pivotally engaging one of the pair of socket members. Each of the pair of tow bars further includes a second end, the second ends of the pair of tow bars being joined to form a hitch ball member that pivotably and rotatably engages the hitch member.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: January 7, 2003
    Inventor: John Greaves
  • Publication number: 20020047246
    Abstract: One embodiment of the invention relates to an adapter assembly for a towing vehicle having a drawbar hitch for connecting a towed implement having a pull-through swivel hitch assembly to the towing vehicle. The adapter assembly includes a drawbar extension member having a horizontal cross pin, a clamp assembly to secure the drawbar extension member to the drawbar, an adapter frame having a hook to engage the cross pin, and a trunnion pin to couple the adapter frame to the swivel hitch assembly.
    Type: Application
    Filed: September 4, 2001
    Publication date: April 25, 2002
    Applicant: Case Corporation
    Inventors: Melanie W. Harkcom, Terry A. Young, Thomas L. Stiefvater
  • Patent number: 6375201
    Abstract: Provided is a sulky in which an operator platform is attached to a hitch arm through the interconnection of a vertical pivot tube and an essentially C-shaped clevis. The vertical pivot tube is secured to the clevis by a vertical pivot pin and hinge. The clevis counter balances and leverages the forces and loads that are applied to the vertical pivot pin while the sulky is in operation and, thereby, prevents the unnecessary anomalies and structural failures of the vertical pivot pin. Alternate embodiments detailing alternate clevis configurations are also presented.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: April 23, 2002
    Assignee: Havener Enterprises, Inc.
    Inventor: Chris Havener
  • Patent number: 6352278
    Abstract: A coupling for coupling first and second members. The members define an opening for extended and circular counterparts. The counterparts turn on the members and each other while the members contact the counterparts to urge them together. The counterparts, one after another between the members, move and release the members.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: March 5, 2002
    Inventor: Glenn S. Solberg
  • Patent number: 6332626
    Abstract: This invention is a multi use tow bar for towing one vehicle behind the other, which is very simple in design in that it consists of a single (segmented) shaft which is rigidly attached to the rear of the towing vehicle (with a single component attachment device), a simple vertically rotating joint, and a rearward long shaft segment which is attached to the center of the front of the towed vehicle by a single coupler/ball. This tow bar is suitable for a broad range of situations where one vehicle tows another vehicle on a continuing basis and ease of attachment and disattachment of the two vehicles is important.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: December 25, 2001
    Inventor: J. Stephen Morrill
  • Publication number: 20010026055
    Abstract: Provided is a sulky in which an operator platform is attached to a hitch arm through the interconnection of a vertical pivot tube and an essentially C-shaped clevis. The vertical pivot tube is secured to the clevis by a vertical pivot pin and hinge. The clevis counter balances and leverages the forces and loads that are applied to the vertical pivot pin while the sulky is in operation and, thereby, prevents the unnecessary anomalies and structural failures of the vertical pivot pin. Alternate embodiments detailing alternate clevis configurations are also presented.
    Type: Application
    Filed: December 21, 1999
    Publication date: October 4, 2001
    Inventor: CHRIS HAVENER
  • Patent number: 6286854
    Abstract: A folding trailer is described including a wheeled first frame portion having a tongue secured thereto which extends forwardly therefrom for connection to a hitch adapter which is mounted on the hitch of the an all-terrain vehicle. A second frame portion is pivotally secured to the rearward end of the wheeled frame portion and a rear frame portion is pivotally secured to the rearward end of the second frame portion in such a manner that it may be pivotally moved upwardly from a horizontally disposed position on the rearward end of the second frame portion to an upwardly extending position. The rear frame portion may be folded onto the second frame portion with those frame portions being folded upon the wheeled frame portion. The trailer may then be pivotally moved upwardly and secured to the rack of the all-terrain vehicle.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: September 11, 2001
    Assignee: Cycle Country Accessories Corp.
    Inventor: Gary Cross
  • Patent number: 6250663
    Abstract: A spit-frame, heavy truck, suspension system for trucks that haul trailers made of three moveably interlocked rigid frames referred to as the front frame, rear frame, and interconnecting frame. The front frame supports the cab, engine, and transmission. The rear primary frame supports the drive axle and fifth wheel. The rear end of the interconnecting frame is pivotally mounted to the rear frame whereby the rear frame may rotate about a transverse axis. The front end of the interconnecting frame is mounted to the front frame in a manner that permits the interconnecting frame to rotate and pivot along its longitudinal axis relative to the front frame. Hydraulic cylinders are used to dampen vibrations and oscillations within this spit-frame structure.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: June 26, 2001
    Inventor: Clower E. Maloy
  • Patent number: 6203049
    Abstract: A terrain following hitch which mounts on a tractor draw bar by a pin, and which allows an implement being towed to move in three planes, independent of the tractor. The hitch includes three hinges, and a draw bar attachment tube which fits over the draw bar of a tractor, and transmits force to the walls of the draw bar, instead of into the pin and pin holes. The hitch reduces wear on implements and hitch connections.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: March 20, 2001
    Inventor: David A. Gibson
  • Patent number: 6170682
    Abstract: The car under-frame of the invention comprises a planar coupling member 2 projecting from a first car C toward a second car B, a bearing inner ring 3 positioned on the upper side of planar coupling member 2 and secured rigidly thereto, a bearing outer ring 6 disposed on the outer peripheral side of bearing inner ring 3 through balls, a bearing step 5 positioned on the upper side of bearing outer ring 6 and to which the bearing outer ring is rigidly secured, and an articular coupling member 7 projecting from the second car B toward the first car C to grip a mounting arm 5b of bearing step 5. The mounting arm 5b of bearing step 5 is integral with a generally discoid body segment 5a and disposed below the top end face of body segment 5a and extending radially outwardly from either side of body segment 5a. In accordance with the invention there can be provided a under-frame structure which makes it possible to lower the car floor level without interfering with strength and coupler performance.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: January 9, 2001
    Assignee: The Rinki Sharyo Co. Ltd
    Inventors: Yoshitaka Sugimoto, Kozo Ueta, Yoshihiko Miura, Jun Kashima, Tomohide Saito, Toshitaka Funaki
  • Patent number: 6168182
    Abstract: A tow bar having a body portion, adapted to be attached to a towing vehicle and a pair of legs joined to the body portion and adapted to be attached to a towed vehicle. At least one of the legs defines a closed channel that can be opened to form an open channel. The channel is generally adapted to partially conceal and protect a safety cable of the sort generally required to be used in association with a tow bar.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: January 2, 2001
    Assignee: Billy C. Ford
    Inventor: Bill C. Ford
  • Patent number: 6042137
    Abstract: Two light weight and height adjustable trailer hitch devices for towing a trailer. The hitches include a vertical hinge joint block element which attaches to the trailer, a vertical hinge joint block element which is attached to the towing vehicle's bumper, and a center block element for variably connecting said hinge joint block elements. In one embodiment, apertured clevises support a rotatable joint block element which is supported further by a pair of reinforcing strips attached to the outside of the first hitch device. A second hitch device employs a double-yoked center block element rotatably mounted in a clevis and including a vertical apertured disc. The hitches allow a trailer to remain level always, even when attached to vehicles with bumpers of various heights.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: March 28, 2000
    Inventor: Wesley R. McIntosh
  • Patent number: 6032973
    Abstract: A trailer hitch has both horizontal and vertical pivoting connections between a towing vehicle and a trailer and is further provided with a telescoping alignment bar to facilitate connection of the towing vehicle to the trailer hitch.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: March 7, 2000
    Inventor: Frank W. Flowers, Jr.
  • Patent number: 6000705
    Abstract: This invention relates to a stand-on sulky device to be attached to the rear of a self-propelled power mower or other self-propelled vehicle. The sulky includes first, second, and third pivots to provide improved maneuverability of the two-wheeled sulky platform during operation. The first and third pivots are arranged substantially parallel to the ground during sulky operation and are vertically spaced from one another thereby resulting in improved sulky performance. According to certain embodiments, the sulky includes a design allowing for a more compact storage position wherein the platform is hung from the mower handle bars with the upper or foot receiving surface of the platform facing away from the mower and the first arm being received in an optional recess defined in the bottom of the mower so as to restrict swinging movement of the platform while in storage.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: December 14, 1999
    Assignee: Wright Mfg., Inc.
    Inventor: James D. Velke
  • Patent number: 5941551
    Abstract: This is an improved trailer hitch apparatus which is self-aligning and essentially self-connecting, and which allows for maximum horizontal and vertical movement of the towed vehicle relative to the towing vehicle. The device includes a plurality of connected guide walls which converge into a spherical housing, having a circular opening at the point of convergence, and a double ring coupler device, which is attached to a standard trailer tongue, having an inner and outer annulus-shaped ring, formed so that the outer ring is a rigid extension of the trailer tongue and the inner ring rotates freely within the said outer ring. The spherical housing device is attached to the interior channel of a standard trailer hitch and when the towing vehicle is backed toward the trailer, the guide walls capture the double ring device, and slides into the spherical housing, and is secured by a coupler pin, which is inserted through the spherical housing vertically through the inner and outer rings.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: August 24, 1999
    Inventors: C. Eric Harman, M. Timothy Warren
  • Patent number: 5915715
    Abstract: A Y-shaped tow bar includes extensible legs which are rotatably mounted to the trunk of the tow bar. Each leg may be locked into a nominally extended position wherein further extension and compression is resistingly and constrainedly permitted by a pair of shock absorbing springs.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: June 29, 1999
    Inventor: Billy C. Ford
  • Patent number: 5873431
    Abstract: An articulated vehicle comprising a first vehicle portion attached to a second vehicle portion by a joint assembly. The joint assembly preferably comprises a bearing assembly that is pivotally attached to the first vehicle portion such that the bearing assembly can pivot relative to the first vehicle portion about a substantially horizontal axis that is substantially transverse to the longitudinal axis of the vehicle. The bearing assembly is also preferably pivotally attached to the second vehicle portion such that the bearing assembly can pivot relative to the second vehicle portion about a substantially vertical axis. The bearing assembly is preferably constructed to enable the first vehicle portion to rotate about the longitudinal axis relative to the second vehicle portion.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: February 23, 1999
    Assignee: Joy MM Delaware, Inc.
    Inventors: Daniel N. Butler, George A. Fischer, Randall W. Welker
  • Patent number: 5873595
    Abstract: A tow bar assembly adapted to extend between a towing vehicle and a towed vehicle. A frame is provided which includes a bearing element secured to the front end of the frame and a mounting element secured to the rear end of the frame. The mounting element is adapted to be selectively connected to the receiver hitch of a towing vehicle, while the bearing element extends rearward toward the towed vehicle in one embodiment. A pair of elongated, telescopic swing arms are pivotally secured to the bearing element and extend to the towed vehicle for attachment thereto. The bearing element further includes a yoke rotatable about a ball joint having at least two degrees of freedom which allows for movement of the swing arms in both vertical and horizontal planes. The swing arms further include pivot flanges that are pivotally secured to the swing arms at an end nearest the towed vehicle.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: February 23, 1999
    Inventor: Thomas M. Hinte
  • Patent number: 5857823
    Abstract: An articulated self-propelled tug and boat trailer. The trailer is mounted on wheels and includes a laterally opposed pair of generally parallel spaced apart longitudinally extending hull supporting members connected by cross members. The hull supporting members are pivotable about the trailer wheels. Independently actuable hydraulic rams selectively or simultaneously elevate either or both of the longitudinally extending hull supporting members relative to the trailer wheels. The cross members which rigidly mount the hull supporting members to a universal articulatable joint having three rotational degrees of freedom. A self-propelled tug is the opposite side of the universal articulatable joint. Independent hydraulic rams independently and selectively pivot the trailer and the tug relative to each other about each of the three rotational degrees of freedom. The tug has drive wheels for selectively self-propelled translation of the tug and the trailer.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: January 12, 1999
    Inventor: William A. MacEachern
  • Patent number: 5857692
    Abstract: A towing arrangement for towing vehicles, such as golf cars. A pivotable, elongated towing bar is carried at the rear of a vehicle for pivotable movement about a horizontal pivot axis between an outwardly extending, towing position, and a retracted, upwardly extending, storage position. A towing bar gripper is attached to the car adjacent the rear end for releasably gripping the towing bar in the storage position. The gripper is formed by a resilient, generally U-shaped frame having a pair of opposed, spaced apart arms that form a slot into which a gripper bar is frictionally inserted and retained.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: January 12, 1999
    Assignee: Club Car, Inc.
    Inventors: Paul E. Hayes, Donald G. Samuelson, James R. Kerlin, Charles A. Fain
  • Patent number: 5727806
    Abstract: A utility tow bar includes a coupler assembly, a pair of tow arms and fasteners for securing the tow arms to the coupler assembly. More specifically, the coupler assembly includes a tow arm receiving channel for holding the tow arms as well as a hitch ball receiving socket and hitch ball lock for connecting the utility tow bar to a towing vehicle. Preferably the tow arms are substantially S-shaped. Each tow arm is connected at its proximal end to the coupler assembly. Each tow arm includes a connector at its distal end for connecting to a trailing vehicle. Two sets of aligned mounting apertures are provided in the coupler assembly and tow arms. A pair of pull pins are received in the aperture sets to secure the tow arms and coupler assembly together. Pin clips secure the pull pins in position.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: March 17, 1998
    Assignee: Reese Products, Inc.
    Inventors: Richard McCoy, David L. Kulp, Lori A. Birky
  • Patent number: 5709274
    Abstract: A conversion hitch for a farm implement, such as a drill, comprising a connector which is removably secured to the forward end of the implement hitch and which has a first support member extending forwardly therefrom. A second support member is pivotally connected, about vertical and horizontal axes, to the forward end of the first support member and has connectors at the opposite ends thereof which are adapted to be secured to the rearward ends of the lift arms of the two-point hitch of the tractor.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: January 20, 1998
    Inventor: Greg H. Herbold
  • Patent number: 5706901
    Abstract: The forward end of a draft tongue of a towed, power take-off driven implement carries a transmission including an upper right-angle gear box rigidly fixed to the tongue and a lower right-angle gear box swivelly mounted to the tongue for rotation about a vertical yaw axis. A swivel hitch includes a frame secured to the lower right-angle gear box and to an upright extending pivot member forming part of the swivel mounting of the lower right-angle gear box. A longitudinal pivot member is swivelly mounted to the hitch frame along a roll axis. In one embodiment, a vertical clevis is fixed to a forward end of the longitudinal pivot member and is pivotally connected to a drawbar adaptor for relative rotation about a horizontal transverse pitch axis, the latter being located close to the rear end of a drawbar received in a receptacle defined by the adaptor.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: January 13, 1998
    Assignee: Deere & Company
    Inventors: James C. Walters, Matthew Jay Mentzer, Stephen Kenneth Parsons
  • Patent number: 5647604
    Abstract: An improved trailer hitch which can be used to more easily attach a trailer to a towing vehicle by simply engaging a horizontal coupling shaft in a latch assembly, and closing the latch. The trailer hitch comprises six main components: a yoke assembly, a latch assembly, a transverse horizontal coupling shaft, a connector bar, a trailer yoke and a pivot bolt. The yoke assembly provides for rotation about the vertical axis, the latch assembly provides for rotation about the transverse horizontal axis, and the pivot bolt for rotation around the longitudinal horizontal axis. A trailer can be easily attached to a towing vehicle by placing the transverse horizontal shaft in the latch assembly, and closing and fastening the latch.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 15, 1997
    Inventor: Gregory A. Russell
  • Patent number: 5645292
    Abstract: A two wheeled trailer is provided including an upwardly opening body which is generally V-shaped in cross section. The trailer includes a forward end, a forwardly projecting towing tongue and the forward end of the towing tongue incorporates a towing coupler mounted from the towing tongue for at least 90.degree. angular displacement, in either direction, relative to the towing tongue about an axis paralleling the towing tongue.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: July 8, 1997
    Inventors: James Scott McWilliams, Archie Gene Scribner
  • Patent number: 5641173
    Abstract: A light weight aerodynamically efficient cycling trailer having a single wheel is provided for towing behind a bicycle or motor cycle. The disclosed cycling trailer includes a body enclosure, an overlying lid, a light weight frame, the first end of the frame bending upwardly along the forward surface of the body enclosure to engage with a removable goose-neck tongue, the goose-neck tongue extending upwards along and attaching to the forward surface of the body enclosure, the forward end of the goose-neck tongue extending over the rear wheel of the bicycle and being coupled to a latching universal joint which couples the cycling trailer to the bicycle. The latching universal joint facilitates the easy connecting and disconnecting of the cycling trailer to a bicycle without the need of additional attachments. The cycling trailer is also provided with a removable child carrier, a hanging bar and a cargo shelf.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: June 24, 1997
    Inventor: William T. Cobb, Jr.
  • Patent number: 5609350
    Abstract: Apparatus for securement of an automobile to a motor home and for carrying articles thereon has a tow bar (A) for attachment on one end to the motor home, a connecting frame (B) supporting a carrier platform member (C) with provision of a pair of transversely spaced retractable wheels (D) together with a towing connection (E) carried by the connecting frame adjacent a rear of said platform member so as to limit horizontal movement of the automobile in respect to the connecting frame but permitting pivotal movement in a vertical plane during towing.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: March 11, 1997
    Inventors: William M. Chumley, Kenneth D. Chumley
  • Patent number: 5573259
    Abstract: A bicycle trailer comprising an elongate support member having proximal and distal ends, the distal end having a wheel depending therefrom and the proximal end being attachable, via a connector, to a conventional bicycle. In a preferred embodiment, the elongate support member is pivotally connected to the connector. The connector is mountable to a seat post of the bicycle and is further configured to allow the support member to rotate relative to the seat post. The support member includes at least one rack member attached thereto upon which objects may be placed and secured.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: November 12, 1996
    Inventors: Michael S. Castillo, Edward L. Castillo
  • Patent number: 5531283
    Abstract: A drivetrain and load bearing swivel hitch assembly is provided which separates the load carrying function from the power transmitting function and features a swivel hitch assembly having three axes of rotation which allow for roll, pitch and yaw movement, respectively. One end of the load bearing swivel hitch assembly is secured to an implement such as a peanut combine, while the other end is securely joined to the drawbar of a pulling vehicle such as an agricultural tractor in a manner such that the draft and tongue load are not borne by the drivetrain assembly. Drivetrain assembly includes a swivel gearbox having a generally vertical axis above the generally vertical yaw axis of the load bearing swivel hitch assembly. Combines incorporating this drivetrain and load bearing swivel hitch assembly are also provided in order to present combines that will maintain the proper operational angle for combine operation irrespective of the tractor type or size used as the pulling vehicle.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: July 2, 1996
    Assignee: Bush Hog Corporation
    Inventors: Gregg A. Austin, Gary E. Coppock
  • Patent number: 5516140
    Abstract: A collapsible tow bar assembly adapted to extend between a towing vehicle and a towed vehicle. A frame is provided which includes a bearing element secured to the front end of the frame and a mounting element secured to the rear end of the frame. The mounting element is adapted to be selectively connected to the receiver hitch of a towing vehicle, while the bearing element extends rearward toward the towed vehicle. A pair of elongated, telescopic swing arms are pivotally secured to the bearing element and extend to the towed vehicle for attachment thereto. The bearing element further includes a yoke rotatable about a ball joint having at least two degrees of freedom which allows for movement of the swing arms in both vertical and horizontal planes. The swing arms further include pivot flanges that are pivotally secured to the swing arms at an end nearest the towed vehicle.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: May 14, 1996
    Assignee: Hinte Products, Inc.
    Inventor: Thomas M. Hinte
  • Patent number: 5501481
    Abstract: Apparatus for securement of an automobile to a motor home and for carrying articles thereon has a tow bar (A) for attachment on one end to the motor home, a connecting frame (B) supporting a carrier platform member (C) with provision of a pair of transversely spaced retractable wheels (D) together with a towing connection (E) carried by the connecting frame adjacent a rear of said platform member so as to limit horizontal movement of the automobile in respect to the connecting frame but permitting pivotal movement in a vertical plane during towing.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: March 26, 1996
    Inventors: William M. Chumley, Kenneth D. Chumley
  • Patent number: 5427396
    Abstract: A trailer connected to a vehicle to carry an extra load. The trailer has a bracket with flexible arms and a fixative. The flexible arms are adapted to form bearings together with a bicycle rear wheel axle. Because of the flexibility of the flexible arms the bracket can be pivotally connected to the axle of the rear wheel of a two-wheel vehicle without disassembling the vehicle while connecting and disconnecting it. That simplifies and accelerates the process of connecting the trailer to and disconnecting it from the vehicle. A passenger version of the trailer has rigid child chairs with safety belts mounted on the trailer base, and a safety frame, preventing children from getting hurt. The frame is pivotally mounted to the base and can be rotated about 180 degrees until it touches the ground, opening a space for loading and unloading the trailer and having more support points to prevent the trailer from falling over.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: June 27, 1995
    Inventor: David R. Gore
  • Patent number: 5413364
    Abstract: A sulky for transportation of an operator attachable to self-propelled equipment comprised of a first pivot element attached to the self-propelled equipment, a first arm with first and second ends wherein said first end is pivotally connected to said first pivot element, a second pivot element pivotally connected to said second end of said first arm, a second arm with first and second ends wherein said first end of said second arm is pivotally connected to said second pivot element, a third pivot element pivotally connected to said second end of said second arm and a standing operator platform pivotally connected to the third pivot element.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: May 9, 1995
    Inventor: James T. Hafendorfer
  • Patent number: 5355971
    Abstract: A drivetrain and load bearing swivel hitch assembly is provided which separates the load carrying function from the power transmitting function and features a swivel hitch assembly having three axes of rotation which allow for roll, pitch and yaw movement, respectively. One end of the load bearing swivel hitch assembly is secured to an implement such as a peanut combine, while the other end is securely joined to the drawbar of a pulling vehicle such as an agricultural tractor in a manner such that the draft and tongue load are not borne by the drivetrain assembly. Drivetrain assembly includes a swivel gearbox having a generally vertical axis above the generally vertical yaw axis of the load bearing swivel hitch assembly. Combines incorporating this drivetrain and load bearing swivel hitch assembly are also provided in order to present combines that will maintain the proper operational angle for combine operation irrespective of the tractor type or size used as the pulling vehicle.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: October 18, 1994
    Assignee: Bush Hog Corporation
    Inventors: Gregg A. Austin, Gary E. Coppock
  • Patent number: 5354087
    Abstract: An adjustable trailer hitch for hitching a trailer to a vehicle. The trailer hitch includes a first plate attached to the trailer and a second plate attached to a ball coupler. The first plate includes a slot, and the second plate includes two holes through which bolts may be inserted whereby unlimited adjustment between the plates can be achieved within a predefined range. The trailer hitch also includes a tongue having a coupler plate attached to one side. A pivot plate is pinned to the coupler plate and a latch pin is inserted through the tongue, coupler plate and pivot plate for latching the pivot plate. The latch pin and pivot plate are free to move when the trailer is being hitched to the vehicle.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: October 11, 1994
    Assignee: Gooseneck Trailer Mfg. Co., Inc.
    Inventor: Harold W. Head
  • Patent number: 5340142
    Abstract: A towing assembly for towing a steerable vehicle chassis includes a pin having a flat side which is fixed to the front face of the front rail of the chassis, and a steering frame which is rotatably mounted to the pin by way of a cylindrical bearing containing sleeve on the steering frame. A cup-shaped cap overlies the sleeve and the bearings to protect them against contamination, and the cap is rigidly fixed to the pin and front chassis rail to increase the strength and integrity of the mounting of the towing assembly to the chassis.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: August 23, 1994
    Assignee: E-Z Trail, Inc.
    Inventor: Abe B. Kuhns
  • Patent number: 5240273
    Abstract: A tow bar for a trailer comprises forward and rear sections which are pivotable relative to one another about a substantially horizontal axis, to reduce the stresses to which the tow bar is subjected when travelling across rough terrain. An axially compressible spring, such as a stack of Belleville springs mounted on a cylindrical shaft, extends between the two tow bar sections to absorb some of the stresses caused by pitching movement of the trailer relative to the towing vehicle.
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: August 31, 1993
    Assignee: Evridge Holdings Limited
    Inventors: Terence C. Stead, Gary J. C. Stead, Peter Joyce
  • Patent number: 5240266
    Abstract: A hitch to be used with a one-wheeled trailer to be towed by a bicycle, motorcycle, moped, or other cycle or two-wheeled vehicle. The hitch is mounted relatively permanently to the seat post of the towing cycle but is free to swivel around said seat post as the trailer tracks around curves. The frame of the trailer to be towed has a frame the front reach of which consists of transversely disposed rounded bar or tubing. The essential universal-joint connection that makes a one-wheeled trailer feasible is completed by this rounded front reach of the frame captured rotatably within a horizontally disposed, rearward-facing slot in the hitch block. The capture is completed by means of a vertical, quickly removable pin preferably containing a spring-ball plunger. The pin is inserted behind said bar or tubing.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: August 31, 1993
    Inventors: Reginald W. Kelley, S. Richard Hazelett, Bernhard Bender, Thomas Mulert
  • Patent number: 5236214
    Abstract: Towing apparatus mounted on the rear of a towing vehicle for lifting and towing disabled vehicles includes an extendible boom assembly positionable beneath the undercarriage of the vehicle to be towed. The boom assembly is carried by a vertically and pivotably movable housing assembly mounted on the towing vehicle and is pivotable relative to the housing assembly. The boom assembly includes a number of extendible boom stages telescopically mounted within first and second stage boom members, the first stage boom member being pivotably mounted on the housing assembly. Second stage boom member is mounted within and pivotable relative to the first stage boom member about a vertical axis so as to move from side-to-side, the extendible boom stages moving with the second stage boom member. The first stage boom member has an enlarged mouth through which the second stage boom member extends, the large mouth permitting the second stage to have substantial sideways movement.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: August 17, 1993
    Assignee: Taylor-Made Equipment Co., Inc.
    Inventor: William L. Taylor
  • Patent number: 5186483
    Abstract: A towing coupling to connect a towing vehicle to a trailer, the coupling comprising: a vehicle bar connected to the vehicle; a trailer bar connected to the trailer; an intermediate member adapted to be pivotally connected at a first end thereof to the vehicle bar; and, a releasable member adapted to be releasably and pivotally connected at a first end thereof to a second end of the intermediate member, and to be connected to the trailer bar at a second end thereof; wherein: a first pivot axis is defined by a first coupling arrangement connecting the first end of the intermediate member to the vehicle bar; a second pivot axis is defined by a second coupling arrangement between the intermediate member and the releasable member, the second pivot axis being in a substantially normal direction to the first pivot axis; and a third pivot axis is defined by a third coupling arrangement formed by first and second pivotally connected parts of either the intermediate member or the releasable member, the third pivot axis
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: February 16, 1993
    Assignee: Lynline Pty Limited
    Inventor: Michael J. Sheppard
  • Patent number: 5171034
    Abstract: A trailer for attachment to a two-wheeled vehicle. The trailer has a relatively low center of gravity and a single pivoting trailing wheel.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: December 15, 1992
    Inventor: James R. Scott
  • Patent number: 5165836
    Abstract: An apparatus for lifting and transporting one or more large bales of material, comprising a trailer to be towed by a towing device and hydraulically powered by an outside source, preferably incorporated in the towing vehicle. The apparatus has tines adapted to fit beneath a bale and cradle and lift the bale in the manner of a fork lift, which is done by exerting force downwards on the wheels of the trailer, thus lifting the frame and attached tines. Connection to the towing device's three-point hitch also affords a lifting device. A device may be provided for shifting the trailer between a transport position, where the trailer is generally aligned behind the towing device, and a working position where the trailer is aligned outwardly and behind the towing device. The tines are positioned generally horizontally and substantially parallel with the longitudinal axis of the trailer. Bales are lifted by the apparatus off the ground for transportation.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: November 24, 1992
    Inventor: Ernest Shonka
  • Patent number: 5113958
    Abstract: A snow travel vehicle for movement through deep snow which is characterized by a two-part articulated chassis, independent beam suspension for tracks on opposite sides of each of the chassis parts and a hydraulic drive system for the vehicle. The two parts of the articulated chassis are pivotally connected about a vertical axis for limited relative movement for steering and about a horizontal axis for limited relative movement to accommodate ground irregularities. Each track includes a longitudinal "walking" beam pivotally connected at the end of a transverse crossbeam. A cleated tread is tautly supported by a plurality of in-line wheels, one of those wheels being a drive sprocket supported by the "walking" beam. A direct drive hydraulic motor is connected to the drive sprocket. A hydraulic power system is provided connected to each of the hydraulic motors and an internal combustion power system is provided to energize the hydraulic power system.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: May 19, 1992
    Inventor: Thomas R. Holden
  • Patent number: 5098113
    Abstract: A lightweight single wheel trailer is provided for towing behind a bicycle and including an upwardly opening wire mesh-type receptacle mounted forward of the rear wheel of the trailer. The trailer is collapsible. The receptacle is detachable from the trailer and is collapsible for economical shipping and storage. The rear portion of the trailer is detachable from the front portion and includes opposite side rearwardly projecting arms between whose rear ends the rear wheel of the trailer is journalled. The forward end of the trailer includes a hitch assembly for coupling the forward end of to the upstanding seat supporting shank of an associated bicycle.
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: March 24, 1992
    Inventor: Eugene E. Albitre
  • Patent number: 5081826
    Abstract: A hitch for connecting a sulky shaft to a harness girth on a horse comprises a pair of brackets affixed to the girth, with a pivotable yoke pivotally mounted between the brackets on a vertical bolt. A horizontal bolt, extending through arms of the yoke, pivotably supports an element which is connected to the sulky shaft by means of an L-shaped pin having a pivoting connection to a hole in the sulky shaft, providing universal movement between the sulky shaft and the harness.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: January 21, 1992
    Inventor: Fenton MacKay
  • Patent number: 5062651
    Abstract: A carriage which can be towed by a person during jogging or walking, and for receiving a child to be taken along during the person'exercise, comprises a foldable frame supported on a pair of rotatably mounted wheels. A tow bar is connected to the frame and extends forwardly to a suspension bar which is connected to the frame by flexible cords. A belt is connected to opposite ends of the suspension bars to be worn by the person. The suspension bar avoids the transmission of erratic movements from the person to the carriage.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: November 5, 1991
    Inventor: Michael J. Varieur
  • Patent number: 5011170
    Abstract: This invention relates to trailers and in particular to trailers for use with bicycles and motorcycles. This trailer will secure belongings inside, protecting them from the elements. The trailer is easily hooked and unhooked in a matter of seconds and is unmatched in its handling ability as it travels behind the cycle or motorcycle. The trailer may be removed 90 degrees relative to the bike when moving or parked. Locking it in such a position while parked prevents it from being wheeled away. The cyclist is a much more visible object on the road due to the added width the trailer provides and the trailer should contain reflectors or lights for added visibility. A pivot assembly allows up and down motion which will enable the trailer to follow undulations in the road or terrain; allows horizontal or sideways motion to enable the trailer to follow left or right turns by the cyclist and prevents rotation in the horizontal axis to enable the trailer to follow the cyclist's lean on corners.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: April 30, 1991
    Inventors: Alexander D. Forbes, Sheena C. Forbes