Dual-attachment system for a sway control hitch
AssigneeProgress Mfg. Inc.
InventorsJason Robert Harper, Raymond L. Conger, Joshua A. Jones, Jed K. Anderson
Life of this patent
Estimating the term…
Abstract
A trailer hitch system for equalizing trailer loads and reducing trailer sway. The trailer hitch system may include spring bars that may be attached to a hitch head using a trunnion style connection. The spring bars may be attached to the trailer using rigid brackets that reduce swinging of the spring bars. The rigid brackets having a plurality of contact points may include an upward extending portion for attaching to the trailer tongue, and a lateral extending portion for receiving the spring bars thereupon. The rigid brackets may include a spacing member and an attachment member.
Claims39
A system for coupling a trailer tongue to a vehicle, the trailer tongue having a frame member, the system comprising:
- a hitch;
- a spring bar extending from the hitch;
- a support member having a surface adapted to support the spring bar;
- wherein the support member comprises a plurality of openings for selectively receiving at least one stud to thereby provide a variable height adjustment for the support member;
- an attachment member having a hole that receives the at least one stud;
- the at least one stud extending inwardly through the support member and terminating at a free end, wherein the free end of the stud extends into the attachment member.
A system for coupling a trailer tongue to a vehicle, the trailer tongue having a frame member, the system comprising:
- a hitch;
- a spring bar extending from the hitch;
- a support member having a surface adapted to support the spring bar;
- wherein the support member comprises a plurality of openings for selectively receiving at least one stud to thereby provide a variable height adjustment for the support member;
- an attachment member having a receiver having an opening which receives the support member, wherein the receiver also includes a hole that receives the at least one stud;
- the at least one stud extending inwardly through the receiver and the support member and terminating at a free end, wherein the free end of the stud extends into the attachment member.
A system for coupling a trailer tongue to a vehicle, the trailer tongue having a frame member, the system comprising:
- a hitch;
- a spring bar extending from the hitch;
- an attachment member having a recess;
- a spacing member joined to the attachment member;
- a support member having a surface configured and adapted to support the spring bar, wherein the spacing member is positioned between the support member and the attachment member;
- a stud having a head, a shaft and a free end, said shaft extending from the head to the free end and at least a portion of the shaft having a male thread;
- the support member further having a plurality of openings for selectively receiving the free end of the stud to thereby provide a variable height adjustment for the support member with respect to the attachment member;
- at least one of the plurality of openings of the support member being dimensioned to allow passage of the shaft but not the head of the stud, wherein the attachment member is dimensioned to engage the free end of the stud;
- and
- a mounting assembly for securing the attachment member to the frame member of the trailer tongue.
A method for joining a spring bar to a frame member of a trailer tongue, the method comprising:
- (a) selecting one of a plurality of openings on a support member that correspond to a desired height of the support member;
- (b) mounting a stud to the support member such that stud extends inwardly from the support member toward the frame member of the trailer tongue, the stud having a free end;
- (c) securing the support member to the frame member;
- and
- (d) loading the spring bar onto a surface of the support member.
A system for coupling a trailer tongue to a vehicle, the trailer tongue having a frame member, the system comprising:
- a hitch;
- a spring bar extending from the hitch;
- an attachment member having a first side, a second side, a recess and a lower opening and an upper opening;
- a pair of studs;
- each of the pair of studs comprising a shaft extending from a head and terminating at a free end;
- each of the shafts of the pair of studs comprising a threaded portion;
- a spacing member disposed on the first side of the attachment member, the spacing member having a pair of bores in communication with the recess of the attachment member;
- each of the bores of the spacing member dimensioned to allow passage of the shaft, but not the head, of a stud,
- the spacing member being joined to said attachment member;
- a mounting assembly for securing the attachment member to the frame member of the trailer tongue, the mounting assembly comprising a pair of fasteners and a back attachment member;
- each of the pair of fasteners of the mounting assembly comprising a shaft extending from a head and terminating at a free end;
- the back attachment member having a lower opening and an upper opening;
- an L-shaped support member having an upward extending portion and a lateral extending portion;
- the lateral extending portion of the L-shaped support member having a surface for supporting the spring bar;
- a plurality of openings for selectively receiving the shafts of the studs, the plurality of openings being distributed along the upward extending portion of the support member;
- wherein the plurality of openings provide a variable height adjustment for the support member with respect to the attachment member;
- wherein the shafts of each of the pair of studs extend toward the frame member of the trailer tongue when the shafts are installed into the plurality of openings of the support member.
Dependencies are inferred from the claim text.