# US 9,039,022 B2 · Reconfigurable fixed suspension semi-trailer, flatbed or chassis > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,022 B2 - Document ID: US9039022B2 - Status: Granted - Kind: B2 - Application number: 13/064,604 - Filed: 2011-04-04 - Published: 2012-10-04 - Granted: 2015-05-26 - Earliest claimed: 2011-04-04 - Assignees: Texas Trailer Partners LLC - Applicants: Robert Horton - Inventors: Robert Horton - Web page: https://patentgrep.com/patent/US9039022B2 ## CPC - B62D 53/068: {having devices to equalise or modify the load between the fifth wheel and the rear wheels (adjustable couping saddles per se B62D53/0807; load transfer devices to permit coupling or uncoupling B62D53/0857; anti jack-knifing devices B62D53/0871)} - B62D 53/06: Semi-trailers - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) ## Abstract A reconfigurable fixed position suspension and support structure attached to the trailer body using a locking device consisting of pins, bolts and/or other fastening devices. The support structure has a removable locking device that when attached to the support structure locks the support structure and suspension into a fixed position relative to the trailer body. When the trailer is not in operation, the locking device can be removed allowing the suspension group to be reconfigured, and each suspension to be repositioned relative to the trailer body. The removable locking device is then reattached to the suspension support structure locking the support structure and suspension into a new fixed position relative to the trailer body. ## Claims ### Claim 1 A suspension support apparatus for a chassis structure of a tractor vehicle, the chassis structure of the tractor vehicle having first and second longitudinally-extending and laterally spaced-apart beam structures, the first and second longitudinally-extending and laterally spaced-apart beam structures each having a plurality of engagement locations, the suspension support apparatus comprising: first and second longitudinally-extending and laterally spaced-apart ribs configured to be selectively positioned and aligned with any of the plurality of engagement locations formed on the first and second longitudinally-extending and laterally spaced-apart beam structures, each of the first and second ribs being L-shaped in cross-section and each having a first vertical surface, a second vertical surface on an opposite side of the rib from the first surface and a third horizontal surface, the first surface of the first rib and the first surface of the second rib facing each other and the second surface of the first rib and the second surface of the second rib facing away from each other, the third horizontal surface of the first and second ribs each defining a channel portion facing away from each other, each of the first and second beam structures being I-beam shaped in cross-section and each having at least a first vertical side, a second vertical side opposite the first side and a third horizontal side, the first side of the first beam structure and the first side of the second beam structure facing each other and the second side of the first beam structure and the second side of the second beam structure facing away from each other, the third horizontal sides of the first and second beam structures being positionable in the corresponding channel portions of the third surfaces of the first and second ribs such that the first and second ribs are slidably movable along the first and second beam structures; a single axle member and suspension fixedly connected between the first and second ribs; and a plurality of fasteners configured to be removably attached to the second surfaces of the first and second ribs and to removably secure the first and second ribs to the corresponding first and second beam structures in a first releasable attachment in which the second surfaces of the first and second ribs are in a mutual facing relationship with the first sides of the corresponding first and second beam structures, respectively, with the plurality of fasteners removably connected therebetween at any selected engagement location of the plurality of engagement locations, and wherein the plurality of fasteners are configured to, when the tractor vehicle is not in operation, allow for the first and second ribs to be released from the first releasable attachment with the corresponding beam structures at the selected engagement location, repositioned relative to the corresponding beam structures, and secured to the corresponding beam structures in at least a second releasable attachment at any other engagement location of the plurality of engagement locations, and wherein, when the tractor vehicle is not in operation and the first and second ribs are secured to the corresponding beam structures in one of the releasable attachments at any engagement location of the plurality of engagement locations, the suspension support apparatus functions as a fixed position suspension to lock the first and second ribs into a fixed position relative to the corresponding beam structures via the releasable attachment, such that the suspension support apparatus is repositionable along the first and second spaced-apart beam structures to reconfigure the chassis structure between at least one of a wide spread configuration and a closed tandem configuration. ### Claim 2 (depends on 1) The suspension support apparatus of claim 1, wherein each of the plurality of fasteners comprises a locking device configured to releasably secure a respective pin support of the fastener to the corresponding beam structure for a corresponding rib of the first and second ribs using a respective pin or bolt assembly of the fastener when the corresponding rib is positioned at any of the engagement locations. ### Claim 3 (depends on 2) The suspension support apparatus of claim 2, wherein the respective pin support of each fastener is engaged with the second surface of the corresponding rib using a plurality of removable mechanical fasteners when the respective pin support is releasably secured to the corresponding beam structure. ### Claim 4 (depends on 3) The suspension support apparatus of claim 3, wherein the respective pin or bolt assembly of each fastener extends through respective holes in the corresponding rib, the respective pin support of the fastener, and the corresponding beam structure when the respective pin support is releasably secured to the corresponding beam structure. ### Claim 5 (depends on 3) The suspension support apparatus of claim 3, wherein the second surface of the corresponding rib for each fastener is laterally offset from the first side of the corresponding beam structure when the respective pin support of the fastener is releasably secured to the corresponding beam structure. ### Claim 6 (depends on 1) The suspension support apparatus of claim 1, wherein the suspension support apparatus is provided separately from and not integrated with the chassis structure. ### Claim 7 (depends on 6) The suspension support apparatus of claim 6, wherein the chassis structure includes a trailer body and one or more axle members, and wherein the suspension support apparatus is utilized as an additional axle member for the trailer body when attached to the chassis structure. ### Claim 8 (depends on 7) The suspension support apparatus of claim 7, wherein the trailer body is one of a semi-trailer body and a flatbed trailer body. ### Claim 9 (depends on 1) The suspension support apparatus of claim 1, wherein a respective suspension hanger is secured to and depends from each of the first and second ribs, and wherein the respective suspension hangers are configured to mount the single axle member and suspension to the suspension support apparatus. ### Claim 10 (depends on 9) The suspension support apparatus of claim 9, wherein each of the respective suspension hangers is directly secured to a crossmember that connects and extends laterally between the first and second ribs.