# US 8,770,602 B1 · Steering linkage and method for producing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,602 B1 - Document ID: US8770602B1 - Status: Granted - Kind: B1 - Application number: 13/468,165 - Filed: 2012-05-10 - Granted: 2014-07-08 - Earliest claimed: 2011-05-10 - Assignees: TRW Automotive U.S. LLC - Applicants: Ryan Mark Belleau - Inventors: Ryan Mark Belleau - Web page: https://patentgrep.com/patent/US8770602B1 ## CPC - B62D 7/20: Links, e.g. track rods (means for adjusting camber, castor, or toe-in B62D17/00) - 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 An improved structure for a steering linkage adapted for use in a vehicle steering system and method for producing the same. According to one embodiment, the steering linkage includes a first member having a first longitudinal axis, a second member having a second longitudinal axis, and a third member operatively coupling together the first member and the second member together with the first and second longitudinal axes in alignment with each other. ## Claims ### Claim 1 A vehicle steering linkage comprising: a first member having a threaded first end and a second end; a second member having a threaded first end and a second end; and only a one piece third member is utilized for operatively coupling together the first member and the second member together at the first ends thereof, wherein the third member couples together the first ends in a predetermined orientation relative to one another to thereby position the second ends in a predetermined orientation relative to one another; wherein the threaded first ends of the first and second members each has a radially extending slot formed through at least a portion of the threads of the threaded first end thereof, each of the slots terminating in a closed inner end surface; wherein the third member is a non-yielding member separate and distinct from the first and second members and has a first end and an opposite second end; wherein the first end of the third member is fully inserted into one of the slots of the first and second members in contact with the closed inner end surface of the one of the slots and is secured therein in a fixed manner therein with no gap between the first end of the third member and the closed inner end surface of the one of the slots of the first and second members; and wherein the second end of the third member is disposed in a slip-fit manner in the other one of the slots of the first and second members and with the second end of the third member spaced apart from contact with the closed inner end surface of the other one of the first and second slots of the first and second members by a predetermined clearance distance to allow for adjustability of the first and second members. ### Claim 2 (depends on 1) The vehicle steering linkage of claim 1 wherein the second ends of the first and second members are oriented in a parallel configuration relative to one another. ### Claim 3 (depends on 1) The vehicle steering linkage of claim 1 wherein the second ends of the first and second member are oriented in a non-parallel configuration relative to one another. ### Claim 4 (depends on 1) The vehicle steering linkage of claim 1 wherein the first and second members are drag link assemblies having ball joints operatively disposed in the second ends thereof. ### Claim 5 (depends on 4) The vehicle steering linkage of claim 4 further including a drag link adjuster, wherein the drag link adjuster is configured to allow a distance defined between the second ends of the first and second members to be adjusted relative to one another. ### Claim 6 (depends on 1) The vehicle steering linkage of claim 1 wherein the third member is an alignment member disposed in complimentary shaped openings slots provided in the threaded first ends of the first and second members. ### Claim 7 A vehicle steering linkage comprising: a first member having a threaded first end and a second end, the threaded first end provided with a radially extending slot formed through at least a portion of the threads of the threaded first end thereof and the second end configured to support a first ball joint; a second member having a threaded first end and a second end, the threaded first end provided with a radially extending slot formed through at least a portion of the threads of the threaded first end thereof and the second end configured to support a second ball joint; and only a one-piece alignment member is disposed within the slots provided in the threaded first ends of the first and second members to thereby operatively couple together the first and second members in a predetermined orientation relative to one another and thereby position the first and second ball joints in a predetermined orientation relative to one another; wherein each of the slots provided in the threaded first ends of the first and second members terminates in a closed inner end surface; wherein the alignment member is a non-yielding member separate and distinct from the first and second members and has a first end and an opposite second end; wherein the first end of the third member is fully inserted into one of the slots of the first and second members in contact with the closed inner end surface of the one of the slots and is secured therein in a fixed manner and therein with no gap between the first end thereof the third member and the closed inner end surface of the one of the openings slots of the first and second members; and wherein the second end of the third member is disposed in a slip-fit manner in the other one of the slots of the first and second members and with the second end the third member spaced apart from contact with the closed inner end surface of the other one of the first and second slots of the first and second members by a predetermined clearance distance to allow for adjustability of the first and second members. ### Claim 8 (depends on 7) The vehicle steering linkage of claim 7 wherein the slots are identical to one another. ### Claim 9 (depends on 7) The vehicle steering linkage of claim 7 further including a drag link adjuster operatively disposed about the first ends of the first and second members. ### Claim 10 (depends on 7) The vehicle steering linkage of claim 7 wherein the alignment member couples together the first and second members in a predetermined orientation relative to one another which is operative to position the first and second ball joints in a parallel configuration relative to one another. ### Claim 11 (depends on 7) The vehicle steering linkage of claim 7 wherein the alignment member couples together the first and second members in a predetermined orientation relative to one another which is operative to position the first and second ball joints in a non-parallel configuration relative to one another. ### Claim 12 (depends on 7) The vehicle steering linkage of claim 7 wherein the first and second ends of the alignment member are shaped complimentary to a shape of the slots provided in the threaded first ends of the first and second members. ### Claim 13 A method of assembly of a vehicle steering linkage comprising the steps of: (a) providing a first member having a threaded first end and a second end; (b) providing a second member having a threaded first end and a second end; and (c) providing only a one piece third member configured to operatively couple together the first member and the second member together at the first ends thereof, wherein the third member couples together the first ends in a predetermined orientation relative to one another to thereby position the second ends in a predetermined orientation relative to one another; wherein the threaded first ends of the first and second members each has a radially extending slot formed through at least a portion of the threads of the threaded first end thereof, each of the slots terminating in a closed inner end surface; wherein in the step (c) the third member is a non-yielding member separate and distinct from the first and second members and has a first end and an opposite second end; wherein in the step (c) the first end of the third member is fully inserted into one of the slots of the first and second members in contact with the closed inner end surface of the one of the slots and is secured therein in a fixed manner therein with no gap between the first end of the third member and the closed inner end surface of the one of the slots of the first and second members; and wherein in the step (c) the second end of the third member is disposed in a slip-fit manner in the other one of the slots of the first and second members and with the second end of the third member spaced apart from contact with the closed inner end surface of the other one of the first and second slots of the first and second members by a predetermined clearance distance to allow for adjustability of the first and second members. ### Claim 14 (depends on 13) The method of claim 13 and further including the step of providing an adjustment mechanism which is configured to be operatively disposed about the threaded first ends of the first and second members, wherein the adjustment mechanism is configured to allow a distance defined between the second ends of the first and second members to be adjusted relative to one another while the alignment member maintains the first and second ball ends in the predetermined orientation relative to one another. ### Claim 15 (depends on 13) The method of claim 13 wherein the first and second ends of the third member are shaped complimentary to a shape of the slots provided in the threaded first ends of the first and second members.