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US20160347145A1 - Torque Rod For Vehicle Suspension - Google Patents

Torque Rod For Vehicle Suspension Download PDF

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Publication number
US20160347145A1
US20160347145A1 US15/168,936 US201615168936A US2016347145A1 US 20160347145 A1 US20160347145 A1 US 20160347145A1 US 201615168936 A US201615168936 A US 201615168936A US 2016347145 A1 US2016347145 A1 US 2016347145A1
Authority
US
United States
Prior art keywords
rod
bushing
hub
bushing hub
torque rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/168,936
Other languages
English (en)
Inventor
Michael J. Keeler
Jeffrey R. Zawacki
Scott Allen Massa
Jason C. Fugitt
Matthew D. Kowalski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hendrickson USA LLC
Original Assignee
Hendrickson USA LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hendrickson USA LLC filed Critical Hendrickson USA LLC
Priority to CA2985842A priority Critical patent/CA2985842C/en
Priority to PCT/US2016/035065 priority patent/WO2016196494A1/en
Priority to MX2017015451A priority patent/MX387818B/es
Priority to BR112017024342A priority patent/BR112017024342A2/pt
Priority to AU2016271347A priority patent/AU2016271347B2/en
Priority to US15/168,936 priority patent/US20160347145A1/en
Assigned to HENDRICKSON USA, L.L.C. reassignment HENDRICKSON USA, L.L.C. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUGITT, JASON, KEELER, MICHAEL, KOWALSKI, MATTHEW, MASSA, SCOTT, ZAWACKI, JEFF
Publication of US20160347145A1 publication Critical patent/US20160347145A1/en
Priority to US17/897,526 priority patent/US12370861B2/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/055—Stabiliser bars
    • B60G21/0551—Mounting means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/055—Stabiliser bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/14—Suspension elements of automobile vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/16—Constructional features of arms the arm having a U profile and/or made of a plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/72—Steel
    • B60G2206/722—Plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8102—Shaping by stamping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8103—Shaping by folding or bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8109—Shaping by rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/811—Shaping by cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/8201—Joining by welding

Definitions

  • the present embodiments generally relate to torque rods for use in vehicle suspensions. More particularly, the present invention relates to a fabricated torque rod for use in a vehicle suspension.
  • the commercial vehicle industry uses linkages extensively in vehicle suspensions for the purpose of pivotably connecting the axles to a vehicle in order to allow articulation so as to provide ride comfort, stability, and control of the vehicle.
  • torque rods these linkages are used both in the transverse or lateral direction as well as longitudinally and must be strong enough to transfer all of the loads from the axle to the vehicle chassis.
  • Torque rods are manufactured in a variety of lengths and sizes for different loads, but all generally take a similar shape and function consisting of a main rod portion with round hubs at either end for the purpose of adapting a flexible bushing to allow a pivotable connection between the vehicle and axle.
  • Many different manufacturing methods and materials are employed including forging or casting the entire rod portion and hubs as a single piece, two-piece construction including two forged ends with a telescoping feature allowing them to be welded to a particular length, and 3 piece designs with separate hubs and tubular rod portion that may be connected either thru welding or swaging.
  • torque rods require specialized tooling and equipment such as forging dies and presses, casting molds and foundries, or specialized tubing and swaging or resistance welding equipment. This makes them more difficult to manufacture typically requiring that large quantities be manufactured where the foundry or forging house exists.
  • Other torque rods fabricated using tubing for the rod portion itself typically require specialized seamless tubing and resistance welding or swaging operations.
  • a low-cost and easily fabricated torque rod cut from a metal plate or metal sheet such as standard plate steel with welded-on tubular hubs cut from standard ERW (Electrically Resistance Welded) or seamless tubing is provided.
  • the rod portion of the torque rod can be easily manufactured without specialized equipment or tooling in any part of the world where plate steel and ERW tubing (or seamless tubing) are readily available.
  • Plate steel can readily be cut using common manufacturing techniques including plasma, laser, or waterjet to create the main rod portion and the hub ends can be cut to length from a length of tubing and welded to the plate steel rod portion to create a low-cost fabricated torque rod for any number of commercial vehicle applications.
  • a fabricated torque rod for use in a vehicle suspension including a rod having a first end and an oppositely disposed second end, a first bushing hub; and a second bushing hub, wherein the rod comprises a piece cut from a metal plate or sheet, wherein the first bushing hub comprises cut tubing, wherein the second bushing hub comprises cut tubing, wherein the first end of the rod has a radius that conforms to an outer surface of the first bushing hub, wherein the second end of the rod has a radius that conforms to an outer surface of the second bushing hub, wherein the first end of the rod is welded to the outer surface of the first bushing hub, and wherein the second end of the rod is welded to the outer surface of the second bushing hub.
  • a method of fabricating a torque rod including the steps of cutting a rod out of a piece of metal plate or sheet that is at least 1 ⁇ 4 inch thick, cutting a first piece of tubing to form a first bushing hub, cutting a second piece of tubing to form a second bushing hub, welding a first end of the rod to the first bushing hub, and welding a second end of the rod to the second bushing hub.
  • FIG. 1 is a front perspective view of suspension assembly 10 having a transverse torque rod 100 , according to an example embodiment
  • FIG. 2 is a perspective view of vehicle suspension 20 having a transverse torque rod 100 and a longitudinal torque rod 200 , according to an example embodiment
  • FIG. 3 is a side view of the rod 102 of torque rod 100 shown in FIG. 1 ;
  • FIG. 4 is a perspective view of torque rod 100 with rod 102 welded to bushing hubs 104 and 106 ;
  • FIG. 5 is a side view of torque rod 100 shown in FIG. 4 with rod 102 welded to bushing hubs 104 and 106 ;
  • FIG. 6 is an end view of torque rod 100 shown in FIGS. 4 and 5 ;
  • FIG. 7 is an end view of torque rod 100 shown in FIG. 6 with bushing assembly 110 positioned in bushing hub 104 ;
  • FIG. 8 is a side view of torque rod 100 shown in FIG. 7 with bushing assemblies 110 and 110 a positioned in bushing hubs 104 and 106 respectively;
  • FIG. 9 is a side perspective view of torque rod 100 ′ with bushing hubs 104 ′ and 106 ′ welded to rod 102 ;
  • FIG. 10 is a side view of torque rod 100 ′ shown in FIG. 9 ;
  • FIG. 11 is an end view of torque rod 100 ′ shown in FIGS. 9 and 10 ;
  • FIG. 12 is a side perspective view of torque rod 100 ′ with bushing assemblies 110 and 110 a positioned within bushing hubs 104 ′ and 106 ′;
  • FIG. 13 is a side view of torque rod 100 ′ shown in FIG. 12 ;
  • FIG. 14 is another end view of torque rod 100 ′ shown in FIGS. 12 and 13 with bushing assembly 110 a positioned within bushing hub 106 ′;
  • FIG. 15 is a perspective end view of torque rod 100 ′ shown in FIG. 14 ;
  • FIG. 16 is side view of torque rod 100 ′′ shown with flattened fingers 102 a ′′- d′′;
  • FIG. 17 is a perspective view of torque rod 300 having a pair of mounting flanges 302 and 304 welded to bushing hub 106 ;
  • FIG. 18 is a perspective view of torque rod 400 having a bracket with mounting flanges 402 and 404 welded to bushing hub 106 ;
  • FIG. 19A is a side view of torque rod 1000 ;
  • FIG. 19B is a cross-sectional view of torque rod 1000 taken along lines 19 B- 19 B in FIG. 19A ;
  • FIG. 19C is a cross-section view of torque rod 1000 taken along lines 19 C- 19 C in FIG. 19A ;
  • FIG. 20 is a perspective view of a portion of rod 1002 of torque rod 1000 shown in FIGS. 19A-C ;
  • FIG. 21 is a perspective view of a portion rod 1002 of torque rod 1000 shown in FIGS. 19A-C including bushing hub 1006 .
  • the present embodiments are directed to a fabricated torque rod for use in a vehicle suspension.
  • the low-cost, easily manufactured torque rod does not require forgings or casting and may be advantageously constructed using plate steel or sheet steel and readily available tubing that can be cut to size to form the bushing hubs.
  • the bushing hubs can be welded to the rod, and a pair of fingers on each end of the rod is welded to an outer surface of the bushing hubs to form the torque rod.
  • the term “metal plate” shall encompass what is referred as plate steel or sheet steel.
  • FIG. 1 is a front perspective view of suspension assembly 10 attached to vehicle frame rails 12 , 14 .
  • a transverse torque rod 100 extends inwardly from frame rail 14 .
  • Transverse torque rod 100 may be constructed in accordance with the embodiments described in the Figures below.
  • Transverse torque rod 100 includes a rod 102 that has a first end with fingers 102 a (and 102 b not visible in FIG. 1 ) welded to an outer surface of first bushing hub 104 .
  • a first bushing assembly 110 is positioned within bushing hub 104 with a bar pin 112 that is bolted to axle mount 120 .
  • Transverse torque rod 100 also has a second end with fingers 102 c (and 102 d not visible in FIG. 1 ) welded to an outer surface of second bushing hub 106 .
  • a second bushing assembly 110 a is positioned within second bushing hub 106 with a bar pin 112 a that is bolted to vehicle frame rail mount 122 .
  • FIG. 2 is a perspective view of vehicle suspension 20 (shown without the vehicle frame or axle) having a transverse torque rod 100 and a longitudinal torque rod 200 .
  • Transverse torque rod 100 and longitudinal torque rod 200 may be constructed the same and in accordance with the embodiments described in the Figures below.
  • Transverse torque rod 100 includes a rod 102 that has a first end with fingers 102 a and 102 b welded to an outer surface of first bushing hub 104 .
  • the fingers 102 a and 102 b and the end of the rod extending between them may be welded to the first bushing hub 104 .
  • a first bushing assembly 110 is positioned within bushing hub 104 with a bar pin 112 that may be bolted to an axle mount.
  • Transverse torque rod 100 also has a second end with fingers 102 c (and 102 d not visible in FIG. 1 ) welded to an outer surface of second bushing hub 106 .
  • a second bushing assembly 110 a is positioned within second bushing hub 106 with a bar pin 112 a that may be bolted to a vehicle frame rail mount.
  • longitudinal torque rod 200 includes a rod 202 having a first end with fingers 202 a (and 202 b not visible in FIG. 2 ) welded to a first bushing hub 204 with bar pin bushing assembly 210 positioned with the hub where bar pin 212 may be bolted to a vehicle frame rail mount or frame hanger or other component of the vehicle frame.
  • a second end of rod 202 has fingers 202 c (and 202 d not visible in FIG. 2 ) welded to an outer surface of a second bushing hub 206 .
  • a bar pin bushing assembly 210 a is positioned within the second bushing hub 206 and a bar pin 212 a may be bolted to a frame hanger or other component of vehicle suspension 20 .
  • FIG. 3 is a side view of the rod portion 102 of torque rod 100 shown in FIGS. 1 and 2 .
  • the rod portion 102 may advantageously be cut from plate steel of sheet steel, such as Grade 50 structural steel. Other metals or material such as aluminum could also be used in certain applications.
  • the plate steel may have a thickness from 1 ⁇ 4 inch to 3 ⁇ 4 inch thick, or thicker.
  • the plate steel or sheet steel may be readily cut using plasma, laser, or waterjet cutting techniques.
  • Rod portion 102 has a first end with fingers 102 a and 102 b that together form a circular inner diameter where the fingers 102 a and 102 b may be welded to an outer surface of a first bushing hub formed of cut tubing.
  • Rod portion 102 has a second end with fingers 102 c and 102 d that together form a circular inner diameter where fingers 102 c and 102 d may be welded to an outer surface of a second bushing hub formed of cut tubing.
  • the fingers 102 a and 102 b may also extend further such that the fingers 102 a and 102 b form a complete circle.
  • the fingers 102 c and 102 d may also extend further such that the fingers 102 c and 102 d form a complete circle. In such a case, a larger weld area could be provided to allow for a larger weld surface to the bushing hubs.
  • the rod portion 102 and fingers 102 a - d may be cut as a single, contiguous unitary member cut from a metal plate or sheet.
  • one or more of the fingers 102 a - d could be welded to rod portion 102 .
  • a piece of metal plate or sheet could be cut into a single piece that includes only a single finger on each end of the rod portion 102 .
  • a separate finger could then be welded to the rod portion 102 opposite from the finger that is already attached to the rod portion 102 as a single piece.
  • Cutting a piece of metal plate or sheet to provide a single piece that includes only a single finger on each of the rod portion 102 provides the advantage of being able to nest single pieces to be cut adjacent to each other, allowing nearly all of the metal plate or sheet to be utilized with little scrap. For example, in one application, by nesting the adjacent single pieces to be cut from the metal plate or sheet such that one cut would create an edge for separate rods (and fingers on each end), provides for a much closer to optimal material utilization (134 pcs out of a 72′′ ⁇ 84′′ metal plate or sheet).
  • the ends of rod portion 102 could be provided with cutouts that conform to the outer surface of the tubing to be used for the bushing hubs, and the ends of the rod portion 102 could be welded to the outer surface of the bushing hubs.
  • only a single finger on the end of the rod portion 102 could be used and welded to the bushing hubs. When using a single finger, in some application the finger could encircle more than half of the bushing hub.
  • the torque rod 100 may be cut to any desired length and the fingers cut and sized based on the available tubing for the bushing hub. Expensive and sophisticated forging and casting machinery are also not required in the manufacture of the torque rod 100 . Seamless tubes have been used in some torque rod designs for the rod portion. However, the cost of seamless tubing is on the order of 3 times more expensive than using cut plate steel. Furthermore, in some parts of the world, such as in China and India, sophisticated and expensive machinery is not available. Therefore, in such areas, a torque rod may be fabricated simply using cut plate steel or sheet steel for the rod and cut tubing for the hubs.
  • FIG. 4 is a perspective view of torque rod 100 with rod portion 102 and fingers 102 a - d welded to bushing hubs 104 and 106 .
  • bushing hubs may be constructed of a length of cut tubing, such as ERW (Electrical Resistance Welding) or seamless tubing.
  • First bushing hub 104 may simply be welded to fingers 102 a and 102 b of rod portion 102 using welds 103 a and 103 b
  • second bushing hub 106 may simply be welded to fingers 102 c and 102 d of rod portion 102 using welds 103 c and 103 d.
  • the first and second bushing hubs 104 , 106 may have an inner diameter of 2.5 to 3 inches, although larger or smaller inner diameters are also possible depending on the application.
  • the first and second bushing hubs 104 , 106 may have a wall thickness of 3 ⁇ 8ths of an inch, although thinner or thicker wall thicknesses may also be used depending on the application.
  • the tubing used for the first and second bushing hubs 104 , 106 may be DOM (drawn over mandrel) tubing which allows for more accurate tolerances on the outer diameter of the tubing.
  • the tubing may be made from 1020 or 1026 steel, or other metals and material such as aluminum.
  • torque rods are more difficult to manufacture typically requiring that large quantities be manufactured where the foundry or forging house exists.
  • Other torque rods that are fabricated using tubing for the rod body itself typically require specialized seamless tubing and expensive resistance welding or swaging operations.
  • the present embodiments may be fabricated using minimal and readily available equipment, and can be fabricated using a simple plasma cutter and readily available non-robotic welding equipment throughout the world without any specialized tooling required.
  • the present embodiments may utilize plate steel or sheet steel (defined as flat rolled steel of 1 ⁇ 4′′ or greater thickness) and ERW or seamless tubing.
  • the main rod portion 102 and fingers 102 a - d when used
  • the tubes used to form the first and second bushing hubs 104 , 106 may be cut to length in a horizontal band saw.
  • a manual or robotic welder can also be used to connect the tubes to the ends of the plate or sheet steel rod portion. All of this requires no specialized tooling and no highly specialized equipment.
  • FIG. 5 is a side view of torque rod 100 shown in FIG. 4 with rod 102 welded to bushing hubs 104 and 106 .
  • the fingers 102 a and 102 b on the first end of the rod 102 extend more than halfway around the outer surface of the first bushing hub 104
  • the fingers 102 c and 102 d on the second end of the rod 102 extend more than halfway around the outer surface of the second bushing hub 106 .
  • the fingers 102 a - d are shown extending more than half way around the outer surface of the bushing hubs, thereby advantageously providing for a larger area for the weld as compared to if a tubular rod body were used, and in turn providing added strength.
  • FIG. 6 is an end view of torque rod 100 shown in FIGS. 4 and 5 where fingers 102 a and 102 b can be seen welded to first bushing hub 104 using welds 103 a - d and extending over and beyond a maximum diameter of the outer surface of first bushing hub 104 .
  • FIG. 7 is an end view of torque rod 100 shown in FIG. 6 with bushing assembly 110 positioned in first bushing hub 104 .
  • a variety of bushing assemblies may be used.
  • a bar pin bushing assembly is used having bar pin 112 that extends beyond the outer ends of first bushing hub 104 and includes mounting holes 114 that may be used to bolt the bar pin bushing assembly 110 to a mount on the vehicle suspension, axle, or vehicle frame.
  • FIG. 8 is a side view of torque rod 100 shown in FIGS. 5-7 with bushing assemblies 110 and 110 a positioned in bushing hubs 104 and 106 respectively.
  • FIG. 9 is a side perspective view of torque rod 100 ′ with bushing hubs 104 ′ and 106 ′ welded to rod 102 and FIG. 10 is a side view of torque rod 100 ′ shown in FIG. 9 .
  • Torque rod 100 ′ includes the same rod portion 102 and fingers 102 a - d as torque rod 100 shown in FIGS. 1-8 .
  • the first bushing hub 104 ′ has a reduced wall thickness on end 105 .
  • the reduced wall thickness of end 105 may be formed by machining the inner or outer surfaces of end 105 of the first bushing hub 104 ′ prior to being welded to the fingers 102 a and 102 b of rod portion 102 .
  • the second bushing hub 106 ′ has a reduced wall thickness on end 108 .
  • the reduced wall thickness of end 108 maybe formed by machining the inner or outer surfaces of end 108 of the second bushing hub 106 ′ prior to being welded to the fingers 102 c and 102 d of rod portion 102 .
  • FIG. 11 is an end view of torque rod 100 ′ shown in FIGS. 9 and 10 showing reduced outer diameter portions 105 and 105 a on the ends of the first bushing hub 104 ′.
  • FIG. 12 is a side perspective view of torque rod 100 ′ shown in FIGS. 9-11 with bar pin bushing assemblies 110 and 110 a having bar pins 112 and 112 a positioned within bushing hubs 104 ′ and 106 ′
  • FIG. 13 is a side view of torque rod 100 ′ shown in FIG. 12 .
  • the reduced wall thickness end 108 and (and 108 a on the opposite side) is curled downwardly over the outer edges of the bushing assembly 110 a to retain the bushing assembly 110 a within the second bushing hub 106 ′.
  • Curling the reduced wall thickness ends 105 and 105 a over the outer edges of bushing assembly 110 and curling the reduced wall thickness ends 108 and 108 a of bushing assembly 110 a serves to help prevent “bushing walk” where, in operation, the forces on the bushing assembly may have a tendency for the bushing assembly to move transversely within the bushing hub.
  • FIG. 14 is another end view of torque rod 100 ′ shown in FIGS. 12 and 13 with bushing assembly 110 a positioned within bushing hub 106 ′. Outer edges of bushing assembly 110 a are retained by the curled down reduced wall thickness ends 108 and 108 a, and fingers 102 c and 102 d can be seen welded to bushing hub 106 ′ and extending past a maximum outer diameter of bushing hub 106 ′.
  • the reduced wall thickness of ends 108 and 108 a may be 1 ⁇ 4 to 1 ⁇ 2 the wall thickness of the bushing hub 106 ′.
  • FIG. 15 is a perspective end view of torque rod 100 ′ shown in FIG. 14 providing another view of reduced wall thickness end 108 of bushing hub 106 ′ extending over an outer edge of bushing assembly 110 a to retain bushing assembly 110 a within the bushing hub 106 ′, and fingers 102 c and 102 d are shown welded to an outer surface of bushing hub 106 .
  • FIG. 16 is side view of torque rod 100 ′′ shown with flattened fingers 102 a ′′- d ′′. The rod portion 102 and bushing hubs 104 and 106 of torque rod 100 ′′ are the same as in torque rod 100 shown in FIGS. 1-8 .
  • the fingers 102 a ′′- d ′′ have a flattened outer surface to provide for additional clearance that is required in certain applications.
  • the thickness of the fingers 102 a ′′- d ′′ could be 3 mm at the flattened section.
  • the flattened outer surface of fingers 102 a ′′- d ′′ may be achieved by machining the fingers 102 a ′′- d ′′ after they have been welded to the bushing hugs 104 and 106 .
  • FIG. 17 is a perspective view of torque rod 300 having a pair of mounting flanges 302 and 304 welded to bushing hub 106 .
  • Torque rod 300 has the same configuration as torque rod 100 as shown in FIGS. 1-8 , including the rod portion 102 , fingers 102 a - d , and bushing hubs 106 and 104 .
  • torque rod 300 further includes two mounting flanges 302 and 304 welded to bushing hub 106 on opposite sides of fingers 102 c and 102 d.
  • Mounting flanges 302 and 304 may be used to mount a shock absorber or other suspension component.
  • FIG. 18 is a perspective view of torque rod 400 having a bracket with mounting flanges 402 and 404 welded to bushing hub 106 .
  • Torque rod 400 has the same configuration as torque rod 100 shown in FIGS. 1-8 including rod portion 102 , bushing hubs 104 and 106 , and fingers 102 a, 102 b, and 102 d, but does not include a finger welded to the top of hub 106 . Instead a mounting bracket having mounting flanges 402 and 404 is welded to hub 106 .
  • the mounting flanges 402 and 404 may be used to mount a shock absorber or other suspension component.
  • FIG. 19A is a side view of torque rod 1000 , including a rod 1002 extending between fingers 1002 a - b and fingers 1002 c - d .
  • a bushing hub 1004 is positioned within fingers 1002 a and 1002 b and a bushing hub 1006
  • a bushing hub 1006 is positioned within fingers 1002 c and 1002 d.
  • Rod 1002 may be used in place of rods 102 , 102 ′, 102 ′′ in torque rods 100 , 100 ′, and 100 ′′ described above.
  • FIG. 19B is a cross-sectional view of torque rod 1000 taken along lines 19 B- 19 B in FIG. 19A . As seen in FIG.
  • the first side 1003 , or lower surface, of rod 1002 in FIG. 19B may be deformed by a stamping process, forming process, or coining process, collective “coining process” forming a “coined” rod.
  • the coining process imparts greater strength to the rod 1002 to improve anti-buckling characteristics to the rod 1002 , when the rod 1002 is in compression.
  • FIG. 19C is a cross-section view of torque rod 1000 taken along lines 19 C- 19 C in FIG. 19A .
  • first side 1003 of rod 1002 has a curved surface
  • the second side 1003 a of rod 1002 also has a curved surface.
  • FIG. 20 is a perspective view of a portion of rod 1002 of torque rod 1000 shown in FIGS. 19A-C .
  • first side 1003 of rod 1002 has a curved surface
  • the second side 1003 a of rod 1002 also has a curved surface.
  • FIG. 21 is a perspective view of a portion rod 1002 of torque rod 1000 shown in FIGS. 19A-C including bushing hub 1006 positioned within fingers 1002 c and 1002 d.
  • first side 1003 of rod 1002 has a curved surface
  • the second side 1003 a of rod 1002 also has a curved surface.
  • the present embodiments are illustrated showing a single control rod.
  • a V-rod attachment is used.
  • the V-rod attachment could include rods constructed in the same or similar manner to torque rods 100 , 100 ′, and 100 ′′ set forth in the Figures.
  • the rods in the V-rod attachment are cut from plate or sheet steel and bushing hubs formed of cut tubing are welded to an end of the rods, and fingers of the rods could extend over and be welded to the bushing hubs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
US15/168,936 2015-06-01 2016-05-31 Torque Rod For Vehicle Suspension Abandoned US20160347145A1 (en)

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Application Number Priority Date Filing Date Title
CA2985842A CA2985842C (en) 2015-06-01 2016-05-31 Torque rod for vehicle suspension
PCT/US2016/035065 WO2016196494A1 (en) 2015-06-01 2016-05-31 Torque rod for vehicle suspension
MX2017015451A MX387818B (es) 2015-06-01 2016-05-31 Varilla de torsión para suspensiones de vehículos.
BR112017024342A BR112017024342A2 (pt) 2015-06-01 2016-05-31 haste de torque para suspensão de veículo
AU2016271347A AU2016271347B2 (en) 2015-06-01 2016-05-31 Torque rod for vehicle suspension
US15/168,936 US20160347145A1 (en) 2015-06-01 2016-05-31 Torque Rod For Vehicle Suspension
US17/897,526 US12370861B2 (en) 2015-06-01 2022-08-29 Torque rod for vehicle suspension

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US201562169217P 2015-06-01 2015-06-01
US15/168,936 US20160347145A1 (en) 2015-06-01 2016-05-31 Torque Rod For Vehicle Suspension

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US17/897,526 Active US12370861B2 (en) 2015-06-01 2022-08-29 Torque rod for vehicle suspension

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CN (1) CN107683217B (de)
AU (1) AU2016271347B2 (de)
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WO2019140004A1 (en) * 2018-01-12 2019-07-18 Hendrickson Usa, L.L.C. Bar pin bushing for vehicle suspension
US10704637B2 (en) 2015-08-18 2020-07-07 Hendrickson Usa, L.L.C. Bar pin bushing for vehicle suspension
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US10704637B2 (en) 2015-08-18 2020-07-07 Hendrickson Usa, L.L.C. Bar pin bushing for vehicle suspension
US10767721B2 (en) 2015-08-18 2020-09-08 Hendrickson Usa, L.L.C. Bar pin bushing for vehicle suspension
US11167616B2 (en) * 2016-08-25 2021-11-09 Nhk Spring Co., Ltd. Stabilizer link and method for manufacturing stabilizer link
WO2019140004A1 (en) * 2018-01-12 2019-07-18 Hendrickson Usa, L.L.C. Bar pin bushing for vehicle suspension
CN111836733A (zh) * 2018-01-12 2020-10-27 瀚瑞森美国有限责任公司 用于车辆悬架的杆销轴套
AU2019206508B2 (en) * 2018-01-12 2021-04-08 Hendrickson Usa, L.L.C. Bar pin bushing for vehicle suspension
USD1029882S1 (en) * 2020-01-23 2024-06-04 SpeedyRacing, LLC Motor vehicle suspension stabilizer link

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AU2016271347B2 (en) 2020-03-19
CN107683217B (zh) 2022-07-08
CA2985842A1 (en) 2016-12-08
WO2016196494A1 (en) 2016-12-08
EP3303019B1 (de) 2021-10-06
AU2016271347A1 (en) 2017-11-16
CA2985842C (en) 2023-08-01
CN107683217A (zh) 2018-02-09
MX2017015451A (es) 2018-03-07
BR112017024342A2 (pt) 2018-07-31
US12370861B2 (en) 2025-07-29
MX387818B (es) 2025-03-18
US20220402324A1 (en) 2022-12-22
EP3303019A1 (de) 2018-04-11

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