US20150232123A1 - Steering knuckle assembly - Google Patents
Steering knuckle assembly Download PDFInfo
- Publication number
- US20150232123A1 US20150232123A1 US14/184,083 US201414184083A US2015232123A1 US 20150232123 A1 US20150232123 A1 US 20150232123A1 US 201414184083 A US201414184083 A US 201414184083A US 2015232123 A1 US2015232123 A1 US 2015232123A1
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- US
- United States
- Prior art keywords
- arm
- fastener
- steering knuckle
- steering
- mating feature
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
-
- 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
- B60G2206/50—Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments
Definitions
- This patent application relates to a steering knuckle assembly for a vehicle.
- a steering knuckle assembly is disclosed in U.S. Pat. No. 6,419,250.
- a steering knuckle assembly may include a steering knuckle and a steering arm.
- the steering knuckle may have a first arm and a second arm.
- the steering arm may have a first prong and a second prong.
- the steering arm may be coupled to the first arm such that the first arm may be disposed between the first prong and the second prong.
- a steering knuckle assembly may include a steering knuckle and a steering arm.
- the steering knuckle may have a first arm and a second arm.
- the first arm may have a first mating feature disposed proximate an end surface.
- the steering arm may be coupled to the first arm and may have a second mating feature that may mate with the first mating feature.
- FIG. 1 is a perspective view of a first exemplary embodiment of a steering knuckle assembly.
- FIG. 2 is an exploded view of the steering knuckle assembly of FIG. 1 .
- FIG. 3 is a top view of the steering knuckle assembly of FIG. 1 .
- FIG. 4 is an exploded view of a second exemplary embodiment of a steering knuckle assembly.
- FIG. 5 is a top view of the steering knuckle assembly of FIG. 4 .
- the steering knuckle assembly 10 may be provided with a motor vehicle like a truck, bus, farm equipment, military transport or weaponry vehicle, or cargo loading equipment for land, air, or marine vessels.
- the steering knuckle assembly 10 may be part of a steering system that may be used to steer or change the direction of the vehicle.
- the steering knuckle assembly 10 may include a steering knuckle 12 and a steering arm 14 .
- the steering knuckle 12 may interconnect an axle beam, which may be mounted to the vehicle, to a vehicle wheel.
- the steering knuckle 12 may be integrally formed or cast such that the steering knuckle 12 is provided as a unitary one-piece component.
- the steering knuckle 12 may include a body 20 , a first arm 22 , a second arm 24 , and a spindle 26 .
- the body 20 may provide structural support for the steering knuckle 12 and may facilitate mounting of other components to the steering knuckle 12 .
- the body 20 may include a plurality of brake caliper mounting holes 30 .
- the brake caliper mounting holes 30 may be disposed near the periphery or outside perimeter of the body 20 .
- One or more brake caliper mounting holes 30 may be configured to receive a corresponding fastener that may facilitate mounting of a brake caliper to the steering knuckle 12 .
- the brake caliper mounting holes 30 may extend from a first surface 32 to a second surface 34 .
- the first surface 32 of the body 20 may face outboard or away from the axle beam and toward a vehicle wheel.
- the second surface 34 of the body 20 may be disposed opposite the first surface 32 and may face toward the axle beam and the steering arm 14 .
- the first arm 22 may extend from the body 20 . More specifically, the first arm 22 may extend away from the second surface 34 or from a side of the body 20 that may include the second surface 34 . The first arm 22 may extend in an opposite direction from the spindle 26 and may be disposed above the spindle 26 near the top of the body 20 .
- the first arm 22 may include an upper surface 40 , a lower surface 42 , a first side surface 44 , a second side surface 46 , an end surface 48 , and a first kingpin hole 50 .
- the upper surface 40 may be disposed along a top of the first arm 22 . As such, the upper surface 40 may face away from the axle beam and the second arm 24 .
- the lower surface 42 may be disposed opposite the upper surface 40 .
- the lower surface 42 may be disposed proximate and may face toward the axle beam.
- the lower surface 42 may face toward the second arm 24 .
- the first side surface 44 may extend between the upper surface 40 and the lower surface 42 . In addition, the first side surface 44 may extend from the end surface 48 toward the body 20 . In at least one embodiment, the first side surface 44 may extend to a first step surface 60 .
- the first step surface 60 may be disposed between the end surface 48 and the second surface 34 and may extend outwardly or away from the first side surface 44 such that the first arm 22 becomes wider closer to the body 20 .
- the first step surface 60 may be disposed between the first kingpin hole 50 and one or more fastener holes as will be discussed below.
- the second side surface 46 may be disposed opposite the first side surface 44 .
- the second side surface 46 may extend between the upper surface 40 and the lower surface 42 .
- the second side surface 46 may extend from the end surface 48 toward the body 20 .
- the second side surface 46 may extend to a second step surface 62 .
- the second step surface 62 may be disposed opposite and may extend away from the first step surface 60 .
- the second step surface 62 may extend outwardly or away from the second side surface 46 .
- the second step surface 62 may be disposed between the first kingpin hole 50 and one or more fastener holes as will be discussed below.
- the end surface 48 may be disposed at a distal end of the first arm 22 .
- the end surface 48 may extend from the upper surface 40 to the lower surface 42 .
- the end surface 48 may extend from the first side surface 44 to the second side surface 46 .
- the end surface 48 may be disposed opposite the first surface 32 of the body 20 and may extend substantially parallel to the first surface 32 in one or more embodiments.
- the end surface 48 may be spaced apart from and may not engage the steering arm 14 in one or more embodiments.
- the first kingpin hole 50 may be configured to receive a kingpin that may couple the steering knuckle 12 to the axle beam such that the steering knuckle 12 may pivot about the kingpin.
- the first kingpin hole 50 may be a through hole that may extend through the first arm 22 from the upper surface 40 to the lower surface 42 .
- the first kingpin hole 50 and the kingpin may be disposed along a kingpin axis 64 .
- One or more fastener holes may be provided to facilitate mounting of the steering arm 14 to the first arm 22 .
- a first fastener hole 70 and a second fastener hole 72 are provided.
- the first fastener hole 70 may be disposed between the second fastener hole 72 and the first kingpin hole 50 .
- the first fastener hole 70 may extend along a first axis 74 .
- the first fastener hole 70 may extend into the first arm 22 and may or may not extend completely through the first arm 22 .
- the first fastener hole 70 is configured as a through hole that may extend from the first side surface 44 to the second side surface 46 .
- the first fastener hole 70 may be disposed between the end surface 48 and the first kingpin hole 50 . As such, the first fastener hole 70 may be spaced apart from the end surface 48 .
- the first fastener hole 70 may be configured to receive a first fastener 80 .
- the first fastener 80 may extend into the steering arm 14 and the first arm 22 to couple the steering arm 14 to the first arm 22 .
- the first fastener 80 may have any suitable configuration.
- the first fastener 80 may be a threaded fastener, such as a bolt, or a non-threaded fastener, such as a pin.
- the first fastener 80 is configured as a bolt that may be coupled to a nut to inhibit axial movement of the first fastener 80 .
- multiple fasteners may be received in the first fastener hole 70 , such as multiple threaded or non-threaded fasteners that may extend into opposite ends of the first fastener hole 70 .
- the second fastener hole 72 may be spaced apart from the first fastener hole 70 .
- the second fastener hole 72 may be disposed between the end surface 48 and the first fastener hole 70 .
- the second fastener hole 72 may or may not extend completely through the first arm 22 .
- the second fastener hole 72 may be configured as a blind hole that may extend from the first side surface 44 toward the second side surface 46 or may be configured as a through hole that may have a decreasing diameter.
- the second fastener hole 72 may be disposed between the end surface 48 and the first kingpin hole 50 . As such, the second fastener hole 72 may be spaced apart from the end surface 48 .
- the second fastener hole 72 may be configured to receive a second fastener 82 .
- the second fastener 82 may extend into the steering arm 14 and the first arm 22 to couple the steering arm 14 to the first arm 22 .
- the second fastener 82 may have any suitable configuration.
- the second fastener 82 may be a threaded fastener, such as a bolt, or a non-threaded fastener, such as a pin.
- the second fastener 82 may or may not extend completely through the first arm 22 depending on the configuration of second fastener hole 72 .
- the second fastener 82 may or may not have the same configuration as the first fastener 80 . In FIG.
- the second fastener 82 has a different configuration than the first fastener 80 and is configured as a pin and that does not extend completely through the first arm 22 .
- the first and second fasteners 80 , 82 may have the same or similar configurations and may be configured as threaded or non-threaded fasteners that may extend through similarly configured first and second fastener holes 70 , 72 .
- the second fastener hole 72 and the second fastener 82 may be disposed between the end surface 48 and the first fastener hole 70 and first fastener 80 ; however, it is contemplated that the first and second fastener holes 70 , 72 and first and second fasteners 80 , 82 may be reversed from the configuration shown in FIG. 2 in one or more embodiments.
- the first arm 22 may have a first length L 1 .
- the first length L 1 may be a linear distance that may extend from the first surface 32 to the first axis 74 .
- the second arm 24 may extend from the body 20 and may be spaced apart from the first arm 22 . Like the first arm 22 , the second arm 24 may extend from a side of the body 20 that may include the second surface 34 and may extend away from the second surface 34 in an opposite direction from the spindle 26 . The second arm 24 may be disposed below the axle beam and the spindle 26 and near the bottom of the body 20 . The second arm 24 may primarily extend in a different direction than the first arm 22 . As is best shown in FIG. 3 , the second arm 24 may extend generally perpendicular to the first arm 22 . In addition, the entire second arm 24 may be disposed closer to the body 20 and first surface 32 than the end surface 48 and/or first and second fastener holes 70 , 72 . In at least one embodiment, the second arm 24 may include a tie rod mounting hole 84 and second kingpin hole 86 .
- the tie rod mounting hole 84 may facilitate coupling of the second arm 24 to a tie rod.
- the tie rod mounting hole 84 may be disposed proximate a distal end of the second arm 24 and may be disposed further from a spindle axis 90 than the periphery of the body 20 .
- the second kingpin hole 86 may be coaxially disposed with the first kingpin hole 50 and may be configured to receive the kingpin.
- the second kingpin hole 86 may be a through hole that may extend through the second arm 24 .
- the second kingpin hole 86 may be disposed closer to the body 20 and the second surface 34 than the first kingpin hole 50 .
- the spindle 26 may support a wheel hub assembly that may facilitate mounting and rotation of a vehicle wheel. More specifically, the spindle 26 may support one or more wheel bearings that support and facilitate rotation of a wheel hub and/or vehicle wheel.
- the spindle 26 may extend along the spindle axis 90 that may extend away from the axle beam. In at least one embodiment, the spindle 26 and spindle axis 90 may extend substantially perpendicular to the first surface 32 .
- the spindle 26 may be integrally formed with the body 20 or may be provided as a separate component that is fastened to the body 20 in one or more embodiments.
- the steering arm 14 may interconnect or couple the steering knuckle 12 to a tie rod.
- the steering arm 14 may be coupled to the first arm 22 of the steering knuckle 12 and may be spaced apart from the second arm 24 .
- the steering arm 14 may be coupled to the first arm 22 such that the steering arm 14 does not rotate or move with respect to the first arm 22 .
- the steering arm 14 may be provided as a separate component from the steering knuckle 12 to permit a common steering knuckle configuration to be used on multiple vehicle models while utilizing different steering arm configurations to accommodate different steering geometries for specific vehicle models, thereby reducing cost.
- the steering arm 14 may include a first prong 100 , a second prong 102 , a connection surface 104 , and a mounting hole 106 .
- the first prong 100 may be disposed proximate or may engage the first side surface 44 of the first arm 22 . An end surface of the first prong 100 may be disposed proximate the first step surface 60 .
- the first prong 100 may include one or more fastener openings that may receive a corresponding fastener.
- the first prong 100 may include a first fastener opening 110 and a second fastener opening 112 .
- the first and second fastener openings 110 , 112 may be coaxially disposed with or aligned with the first and second fastener holes 70 , 72 , respectively.
- the first and second fastener openings 110 , 112 may be configured as through holes in one or more embodiments.
- the second prong 102 may be disposed opposite and may be spaced apart from the first prong 100 .
- the second prong 102 may be disposed proximate or may engage the second side surface 46 of the first arm 22 .
- the first and second prongs 100 , 102 may have the same or similar lengths.
- An end surface of the second prong 102 may be disposed proximate the second step surface 62 .
- the second prong 102 may include one or more fastener openings that may receive a corresponding fastener.
- the second prong 102 may include a first fastener opening 110 that may be coaxially disposed with or aligned with the first fastener hole 70 and the first fastener opening 110 .
- first fastener 80 may extend through the first prong 100 and the second prong 102 while the second fastener 82 may extend through the first prong 100 but not the second prong 102 .
- second prong 102 may include a second fastener opening that may be coaxially disposed with or aligned with the second fastener hole 72 and the second fastener opening 112 of the first prong 100 in one or more embodiments.
- connection surface 104 may extend from the first prong 100 to the second prong 102 .
- the connection surface 104 may be disposed proximate the end surface 48 of the first arm 22 .
- the connection surface 104 may be spaced apart from the end surface 48 to facilitate assembly and alignment of the fastener holes and fastener openings.
- the connection surface 104 may be disposed sufficiently close to the end surface 48 to inhibit rotation of the steering arm 14 with respect to the first arm 22 to inhibit misalignment of the steering arm 14 .
- the steering arm 14 may have a first end 124 and a second end 126 .
- An end surface or end surfaces of the first and/or second prongs 100 , 102 may define the first end 124 .
- the second end 126 may be disposed opposite the first end 124 and may be a point or surface that may be disposed furthest from the first arm 22 or the end surface 48 of the first arm 22 .
- the mounting hole 106 may be disposed proximate the second end 126 and may extend along or be centered with respect to a second axis 128 . The mounting hole 106 may facilitate coupling of the steering arm 14 to a drag link via a ball stud.
- the steering arm 14 may have a second length L 2 .
- the second length L 2 may be a perpendicular distance from the first axis 74 to the second axis 128 .
- the second length L 2 may be less than the first length L 1 to reduce the moment arm length and torque exerted upon the first fastener 80 and/or the second fastener 82 .
- FIGS. 4 and 5 another embodiment of a steering knuckle assembly 10 ′ is shown that includes a steering knuckle 12 ′ and a steering arm 14 ′.
- the same reference numbers are used in FIGS. 4 and 5 to reference features that are similar or identical to those shown in FIGS. 1-3 .
- the steering knuckle 12 ′ may have a similar configuration to the steering knuckle 12 ′ shown in FIGS. 1-3 .
- the first arm 22 ′ has first and second fastener holes 70 ′, 72 ′ that may be spaced apart from the end surface 48 ′ and that may extend from the upper surface 40 ′ to the lower surface 42 ′.
- the first fastener hole 70 ′ may extend along a first axis 74 ′.
- a first mating feature 130 may be provided with the first arm 22 ′ and may be disposed proximate the end surface 48 ′.
- the first mating feature 130 may be disposed between and may be spaced apart from the first fastener hole 70 ′ and the second fastener hole 72 ′.
- the first mating feature 130 may also be disposed between the first side surface 44 ′ and the second side surface 46 ′.
- the first mating feature 130 may have any suitable configuration, such as a male or female configuration. In FIG. 4 , the first mating feature 130 may have a female configuration and may be configured as a groove that may extend from the end surface 48 ′ to a first mating feature end surface 132 .
- the first mating feature end surface 132 may also be provided in the upper surface 40 ′ and may extend from the upper surface 40 ′ toward the lower surface 42 ′. In addition, the first mating feature end surface 132 may be disposed between the end surface 48 ′ and the first kingpin hole 50 .
- the first and second fastener holes 70 ′, 72 ′ may each receive a fastener 80 ′, such as a bolt, that may couple the steering arm 14 ′ to the first arm 22 ′.
- the steering arm 14 ′ may be coupled to the first arm 22 ′.
- the steering arm 14 ′ may include a mounting flange portion 140 that may include a first fastener opening 110 ′, a second fastener opening 112 ′, a first end 124 ′, a second end 126 , and a second mating feature 142 .
- the mounting flange portion 140 may be disposed proximate the upper surface 40 ′ and may be spaced apart from the lower surface 42 ′.
- the first and second fastener openings 110 ′, 112 ′ may be aligned with first and second fastener holes 70 ′, 72 ′, respectively, and may each receive a fastener 80 ′.
- the second mating feature 142 may be configured to mate with the first mating feature 130 .
- the second mating feature 142 may be disposed between and may be spaced apart from the first fastener opening 110 ′ and the second fastener opening 112 ′.
- the second mating feature 142 may have any suitable configuration, such as a male or female configuration.
- the second mating feature 142 has a male configuration and may be configured as a protrusion that may extend into the first mating feature 130 .
- the second mating feature 142 may have a second mating feature end surface 144 that may engage the first mating feature end surface 132 .
- the first end 124 ′ of the steering arm 14 ′ may be disposed proximate the first arm 22 ′ and may include or extend to the second mating feature end surface 144 .
- the second end 126 may be disposed opposite the first end 124 ′ and may be a point or surface that may be disposed furthest from the first arm 22 ′ or the end surface 48 ′ of the first arm 22 ′.
- the mounting hole 106 may be disposed proximate the second end 126 .
- the steering arm 14 ′ may have a second length L 2 ′.
- the second length L 2 ′ may be a perpendicular distance from the first axis 74 ′ to the second axis 128 .
- the first arm 22 ′ may have a first length L 1 ′.
- the first length L 1 ′ may be a perpendicular distance from the first surface 32 to the first axis 74 ′.
- the second length L 2 ′ may be less than the first length L 1 ′ to reduce torque exerted upon one or more fasteners 80 ′.
- the second length L 2 ′ may also be less than a linear distance L 3 ′.
- Linear distance L 3 ′ may extend from the kingpin axis 64 to the first axis 74 ′ to help reduce moment arm length and torque or shearing force that may be exerted on one or more fasteners 80 ′.
- providing a steering knuckle assembly 10 ′ having a second length L 2 ′ that is less than the third length L 3 ′ may reduce package space and provide design flexibility for brake caliper or brake assembly packaging.
Abstract
Description
- This patent application relates to a steering knuckle assembly for a vehicle.
- A steering knuckle assembly is disclosed in U.S. Pat. No. 6,419,250.
- In at least one embodiment, a steering knuckle assembly is provided. The steering knuckle assembly may include a steering knuckle and a steering arm. The steering knuckle may have a first arm and a second arm. The steering arm may have a first prong and a second prong. The steering arm may be coupled to the first arm such that the first arm may be disposed between the first prong and the second prong.
- In at least one embodiment, a steering knuckle assembly is provided. The steering knuckle assembly may include a steering knuckle and a steering arm. The steering knuckle may have a first arm and a second arm. The first arm may have a first mating feature disposed proximate an end surface. The steering arm may be coupled to the first arm and may have a second mating feature that may mate with the first mating feature.
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FIG. 1 is a perspective view of a first exemplary embodiment of a steering knuckle assembly. -
FIG. 2 is an exploded view of the steering knuckle assembly ofFIG. 1 . -
FIG. 3 is a top view of the steering knuckle assembly ofFIG. 1 . -
FIG. 4 is an exploded view of a second exemplary embodiment of a steering knuckle assembly. -
FIG. 5 is a top view of the steering knuckle assembly ofFIG. 4 . - As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.
- Referring to
FIGS. 1 through 3 , an exemplarysteering knuckle assembly 10 is shown. Thesteering knuckle assembly 10 may be provided with a motor vehicle like a truck, bus, farm equipment, military transport or weaponry vehicle, or cargo loading equipment for land, air, or marine vessels. Thesteering knuckle assembly 10 may be part of a steering system that may be used to steer or change the direction of the vehicle. In at least one embodiment, thesteering knuckle assembly 10 may include asteering knuckle 12 and asteering arm 14. - The
steering knuckle 12 may interconnect an axle beam, which may be mounted to the vehicle, to a vehicle wheel. In at least one embodiment, thesteering knuckle 12 may be integrally formed or cast such that thesteering knuckle 12 is provided as a unitary one-piece component. Thesteering knuckle 12 may include abody 20, afirst arm 22, asecond arm 24, and aspindle 26. - The
body 20 may provide structural support for thesteering knuckle 12 and may facilitate mounting of other components to thesteering knuckle 12. In at least one embodiment, thebody 20 may include a plurality of brake caliper mountingholes 30. The brakecaliper mounting holes 30 may be disposed near the periphery or outside perimeter of thebody 20. One or more brakecaliper mounting holes 30 may be configured to receive a corresponding fastener that may facilitate mounting of a brake caliper to thesteering knuckle 12. In at least one embodiment, the brakecaliper mounting holes 30 may extend from afirst surface 32 to asecond surface 34. Thefirst surface 32 of thebody 20 may face outboard or away from the axle beam and toward a vehicle wheel. Thesecond surface 34 of thebody 20 may be disposed opposite thefirst surface 32 and may face toward the axle beam and thesteering arm 14. - The
first arm 22 may extend from thebody 20. More specifically, thefirst arm 22 may extend away from thesecond surface 34 or from a side of thebody 20 that may include thesecond surface 34. Thefirst arm 22 may extend in an opposite direction from thespindle 26 and may be disposed above thespindle 26 near the top of thebody 20. Thefirst arm 22 may include anupper surface 40, alower surface 42, afirst side surface 44, asecond side surface 46, anend surface 48, and afirst kingpin hole 50. - The
upper surface 40 may be disposed along a top of thefirst arm 22. As such, theupper surface 40 may face away from the axle beam and thesecond arm 24. - The
lower surface 42 may be disposed opposite theupper surface 40. Thelower surface 42 may be disposed proximate and may face toward the axle beam. In addition, thelower surface 42 may face toward thesecond arm 24. - The
first side surface 44 may extend between theupper surface 40 and thelower surface 42. In addition, thefirst side surface 44 may extend from theend surface 48 toward thebody 20. In at least one embodiment, thefirst side surface 44 may extend to afirst step surface 60. Thefirst step surface 60 may be disposed between theend surface 48 and thesecond surface 34 and may extend outwardly or away from thefirst side surface 44 such that thefirst arm 22 becomes wider closer to thebody 20. In addition, thefirst step surface 60 may be disposed between thefirst kingpin hole 50 and one or more fastener holes as will be discussed below. - The
second side surface 46 may be disposed opposite thefirst side surface 44. Thesecond side surface 46 may extend between theupper surface 40 and thelower surface 42. In addition, thesecond side surface 46 may extend from theend surface 48 toward thebody 20. In at least one embodiment, thesecond side surface 46 may extend to asecond step surface 62. Thesecond step surface 62 may be disposed opposite and may extend away from thefirst step surface 60. Thesecond step surface 62 may extend outwardly or away from thesecond side surface 46. In addition, thesecond step surface 62 may be disposed between thefirst kingpin hole 50 and one or more fastener holes as will be discussed below. - The
end surface 48 may be disposed at a distal end of thefirst arm 22. Theend surface 48 may extend from theupper surface 40 to thelower surface 42. In addition, theend surface 48 may extend from thefirst side surface 44 to thesecond side surface 46. Theend surface 48 may be disposed opposite thefirst surface 32 of thebody 20 and may extend substantially parallel to thefirst surface 32 in one or more embodiments. Theend surface 48 may be spaced apart from and may not engage thesteering arm 14 in one or more embodiments. - The
first kingpin hole 50 may be configured to receive a kingpin that may couple thesteering knuckle 12 to the axle beam such that thesteering knuckle 12 may pivot about the kingpin. In at least one embodiment, thefirst kingpin hole 50 may be a through hole that may extend through thefirst arm 22 from theupper surface 40 to thelower surface 42. Thefirst kingpin hole 50 and the kingpin may be disposed along akingpin axis 64. - One or more fastener holes may be provided to facilitate mounting of the
steering arm 14 to thefirst arm 22. In the embodiment shown inFIGS. 1-3 , afirst fastener hole 70 and asecond fastener hole 72 are provided. - The
first fastener hole 70 may be disposed between thesecond fastener hole 72 and thefirst kingpin hole 50. Thefirst fastener hole 70 may extend along afirst axis 74. Thefirst fastener hole 70 may extend into thefirst arm 22 and may or may not extend completely through thefirst arm 22. InFIGS. 1-3 , thefirst fastener hole 70 is configured as a through hole that may extend from thefirst side surface 44 to thesecond side surface 46. Thefirst fastener hole 70 may be disposed between theend surface 48 and thefirst kingpin hole 50. As such, thefirst fastener hole 70 may be spaced apart from theend surface 48. - The
first fastener hole 70 may be configured to receive afirst fastener 80. Thefirst fastener 80 may extend into thesteering arm 14 and thefirst arm 22 to couple thesteering arm 14 to thefirst arm 22. Thefirst fastener 80 may have any suitable configuration. For example, thefirst fastener 80 may be a threaded fastener, such as a bolt, or a non-threaded fastener, such as a pin. InFIG. 2 , thefirst fastener 80 is configured as a bolt that may be coupled to a nut to inhibit axial movement of thefirst fastener 80. It is also contemplated that multiple fasteners may be received in thefirst fastener hole 70, such as multiple threaded or non-threaded fasteners that may extend into opposite ends of thefirst fastener hole 70. - The
second fastener hole 72 may be spaced apart from thefirst fastener hole 70. In at least one embodiment, thesecond fastener hole 72 may be disposed between theend surface 48 and thefirst fastener hole 70. Thesecond fastener hole 72 may or may not extend completely through thefirst arm 22. For example, thesecond fastener hole 72 may be configured as a blind hole that may extend from thefirst side surface 44 toward thesecond side surface 46 or may be configured as a through hole that may have a decreasing diameter. Thesecond fastener hole 72 may be disposed between theend surface 48 and thefirst kingpin hole 50. As such, thesecond fastener hole 72 may be spaced apart from theend surface 48. - The
second fastener hole 72 may be configured to receive asecond fastener 82. Thesecond fastener 82 may extend into thesteering arm 14 and thefirst arm 22 to couple thesteering arm 14 to thefirst arm 22. Thesecond fastener 82 may have any suitable configuration. For instance, thesecond fastener 82 may be a threaded fastener, such as a bolt, or a non-threaded fastener, such as a pin. Thesecond fastener 82 may or may not extend completely through thefirst arm 22 depending on the configuration ofsecond fastener hole 72. In addition, thesecond fastener 82 may or may not have the same configuration as thefirst fastener 80. InFIG. 2 , thesecond fastener 82 has a different configuration than thefirst fastener 80 and is configured as a pin and that does not extend completely through thefirst arm 22. Alternatively, the first andsecond fasteners second fastener hole 72 and thesecond fastener 82 may be disposed between theend surface 48 and thefirst fastener hole 70 andfirst fastener 80; however, it is contemplated that the first and second fastener holes 70, 72 and first andsecond fasteners FIG. 2 in one or more embodiments. - The
first arm 22 may have a first length L1. As is best shown inFIG. 3 , the first length L1 may be a linear distance that may extend from thefirst surface 32 to thefirst axis 74. - The
second arm 24 may extend from thebody 20 and may be spaced apart from thefirst arm 22. Like thefirst arm 22, thesecond arm 24 may extend from a side of thebody 20 that may include thesecond surface 34 and may extend away from thesecond surface 34 in an opposite direction from thespindle 26. Thesecond arm 24 may be disposed below the axle beam and thespindle 26 and near the bottom of thebody 20. Thesecond arm 24 may primarily extend in a different direction than thefirst arm 22. As is best shown inFIG. 3 , thesecond arm 24 may extend generally perpendicular to thefirst arm 22. In addition, the entiresecond arm 24 may be disposed closer to thebody 20 andfirst surface 32 than theend surface 48 and/or first and second fastener holes 70, 72. In at least one embodiment, thesecond arm 24 may include a tierod mounting hole 84 andsecond kingpin hole 86. - The tie
rod mounting hole 84 may facilitate coupling of thesecond arm 24 to a tie rod. The tierod mounting hole 84 may be disposed proximate a distal end of thesecond arm 24 and may be disposed further from a spindle axis 90 than the periphery of thebody 20. - The
second kingpin hole 86 may be coaxially disposed with thefirst kingpin hole 50 and may be configured to receive the kingpin. In at least one embodiment, thesecond kingpin hole 86 may be a through hole that may extend through thesecond arm 24. As is best shown inFIG. 3 , thesecond kingpin hole 86 may be disposed closer to thebody 20 and thesecond surface 34 than thefirst kingpin hole 50. - The
spindle 26 may support a wheel hub assembly that may facilitate mounting and rotation of a vehicle wheel. More specifically, thespindle 26 may support one or more wheel bearings that support and facilitate rotation of a wheel hub and/or vehicle wheel. Thespindle 26 may extend along the spindle axis 90 that may extend away from the axle beam. In at least one embodiment, thespindle 26 and spindle axis 90 may extend substantially perpendicular to thefirst surface 32. Thespindle 26 may be integrally formed with thebody 20 or may be provided as a separate component that is fastened to thebody 20 in one or more embodiments. - The
steering arm 14 may interconnect or couple thesteering knuckle 12 to a tie rod. Thesteering arm 14 may be coupled to thefirst arm 22 of thesteering knuckle 12 and may be spaced apart from thesecond arm 24. Moreover, thesteering arm 14 may be coupled to thefirst arm 22 such that thesteering arm 14 does not rotate or move with respect to thefirst arm 22. Thesteering arm 14 may be provided as a separate component from thesteering knuckle 12 to permit a common steering knuckle configuration to be used on multiple vehicle models while utilizing different steering arm configurations to accommodate different steering geometries for specific vehicle models, thereby reducing cost. In at least one embodiment, thesteering arm 14 may include afirst prong 100, asecond prong 102, aconnection surface 104, and a mountinghole 106. - The
first prong 100 may be disposed proximate or may engage thefirst side surface 44 of thefirst arm 22. An end surface of thefirst prong 100 may be disposed proximate thefirst step surface 60. In addition, thefirst prong 100 may include one or more fastener openings that may receive a corresponding fastener. In at least one embodiment, thefirst prong 100 may include afirst fastener opening 110 and asecond fastener opening 112. The first andsecond fastener openings second fastener openings - The
second prong 102 may be disposed opposite and may be spaced apart from thefirst prong 100. Thesecond prong 102 may be disposed proximate or may engage thesecond side surface 46 of thefirst arm 22. In at least one embodiment, the first andsecond prongs second prong 102 may be disposed proximate thesecond step surface 62. In addition, thesecond prong 102 may include one or more fastener openings that may receive a corresponding fastener. In at least one embodiment, thesecond prong 102 may include afirst fastener opening 110 that may be coaxially disposed with or aligned with thefirst fastener hole 70 and thefirst fastener opening 110. As such, thefirst fastener 80 may extend through thefirst prong 100 and thesecond prong 102 while thesecond fastener 82 may extend through thefirst prong 100 but not thesecond prong 102. It is also contemplated that thesecond prong 102 may include a second fastener opening that may be coaxially disposed with or aligned with thesecond fastener hole 72 and the second fastener opening 112 of thefirst prong 100 in one or more embodiments. - The
connection surface 104 may extend from thefirst prong 100 to thesecond prong 102. Theconnection surface 104 may be disposed proximate theend surface 48 of thefirst arm 22. In at least one embodiment, theconnection surface 104 may be spaced apart from theend surface 48 to facilitate assembly and alignment of the fastener holes and fastener openings. Moreover, theconnection surface 104 may be disposed sufficiently close to theend surface 48 to inhibit rotation of thesteering arm 14 with respect to thefirst arm 22 to inhibit misalignment of thesteering arm 14. - As is best shown in
FIG. 3 , thesteering arm 14 may have afirst end 124 and asecond end 126. An end surface or end surfaces of the first and/orsecond prongs first end 124. Thesecond end 126 may be disposed opposite thefirst end 124 and may be a point or surface that may be disposed furthest from thefirst arm 22 or theend surface 48 of thefirst arm 22. The mountinghole 106 may be disposed proximate thesecond end 126 and may extend along or be centered with respect to asecond axis 128. The mountinghole 106 may facilitate coupling of thesteering arm 14 to a drag link via a ball stud. - The
steering arm 14 may have a second length L2. The second length L2 may be a perpendicular distance from thefirst axis 74 to thesecond axis 128. The second length L2 may be less than the first length L1 to reduce the moment arm length and torque exerted upon thefirst fastener 80 and/or thesecond fastener 82. - Referring to
FIGS. 4 and 5 , another embodiment of asteering knuckle assembly 10′ is shown that includes asteering knuckle 12′ and asteering arm 14′. The same reference numbers are used inFIGS. 4 and 5 to reference features that are similar or identical to those shown inFIGS. 1-3 . - The
steering knuckle 12′ may have a similar configuration to thesteering knuckle 12′ shown inFIGS. 1-3 . In this embodiment, thefirst arm 22′ has first and second fastener holes 70′, 72′ that may be spaced apart from theend surface 48′ and that may extend from theupper surface 40′ to thelower surface 42′. Thefirst fastener hole 70′ may extend along afirst axis 74′. - A
first mating feature 130 may be provided with thefirst arm 22′ and may be disposed proximate theend surface 48′. Thefirst mating feature 130 may be disposed between and may be spaced apart from thefirst fastener hole 70′ and thesecond fastener hole 72′. Thefirst mating feature 130 may also be disposed between thefirst side surface 44′ and thesecond side surface 46′. Thefirst mating feature 130 may have any suitable configuration, such as a male or female configuration. InFIG. 4 , thefirst mating feature 130 may have a female configuration and may be configured as a groove that may extend from theend surface 48′ to a first matingfeature end surface 132. The first matingfeature end surface 132 may also be provided in theupper surface 40′ and may extend from theupper surface 40′ toward thelower surface 42′. In addition, the first matingfeature end surface 132 may be disposed between theend surface 48′ and thefirst kingpin hole 50. The first and second fastener holes 70′, 72′ may each receive afastener 80′, such as a bolt, that may couple thesteering arm 14′ to thefirst arm 22′. - The
steering arm 14′ may be coupled to thefirst arm 22′. Thesteering arm 14′ may include a mountingflange portion 140 that may include afirst fastener opening 110′, a second fastener opening 112′, afirst end 124′, asecond end 126, and asecond mating feature 142. The mountingflange portion 140 may be disposed proximate theupper surface 40′ and may be spaced apart from thelower surface 42′. - The first and
second fastener openings 110′, 112′ may be aligned with first and second fastener holes 70′, 72′, respectively, and may each receive afastener 80′. - The
second mating feature 142 may be configured to mate with thefirst mating feature 130. Thesecond mating feature 142 may be disposed between and may be spaced apart from thefirst fastener opening 110′ and the second fastener opening 112′. Thesecond mating feature 142 may have any suitable configuration, such as a male or female configuration. InFIG. 4 , thesecond mating feature 142 has a male configuration and may be configured as a protrusion that may extend into thefirst mating feature 130. Thesecond mating feature 142 may have a second matingfeature end surface 144 that may engage the first matingfeature end surface 132. - The
first end 124′ of thesteering arm 14′ may be disposed proximate thefirst arm 22′ and may include or extend to the second matingfeature end surface 144. Thesecond end 126 may be disposed opposite thefirst end 124′ and may be a point or surface that may be disposed furthest from thefirst arm 22′ or theend surface 48′ of thefirst arm 22′. The mountinghole 106 may be disposed proximate thesecond end 126. - The
steering arm 14′ may have a second length L2′. The second length L2′ may be a perpendicular distance from thefirst axis 74′ to thesecond axis 128. Thefirst arm 22′ may have a first length L1′. The first length L1′ may be a perpendicular distance from thefirst surface 32 to thefirst axis 74′. The second length L2′ may be less than the first length L1′ to reduce torque exerted upon one ormore fasteners 80′. The second length L2′ may also be less than a linear distance L3′. Linear distance L3′ may extend from thekingpin axis 64 to thefirst axis 74′ to help reduce moment arm length and torque or shearing force that may be exerted on one ormore fasteners 80′. In addition, providing asteering knuckle assembly 10′ having a second length L2′ that is less than the third length L3′ may reduce package space and provide design flexibility for brake caliper or brake assembly packaging. - While exemplary embodiments are described above, it is not intended that these embodiments describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention. Additionally, the features of various implementing embodiments may be combined to form further embodiments of the invention.
Claims (21)
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US14/184,083 US9090283B1 (en) | 2014-02-19 | 2014-02-19 | Steering knuckle assembly |
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US14/184,083 US9090283B1 (en) | 2014-02-19 | 2014-02-19 | Steering knuckle assembly |
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US9090283B1 US9090283B1 (en) | 2015-07-28 |
US20150232123A1 true US20150232123A1 (en) | 2015-08-20 |
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US14/184,083 Active US9090283B1 (en) | 2014-02-19 | 2014-02-19 | Steering knuckle assembly |
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Cited By (3)
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USD772126S1 (en) * | 2015-09-22 | 2016-11-22 | MaxTrac Suspension, LLC | Adjustable steering knuckle |
CN112373561A (en) * | 2020-11-13 | 2021-02-19 | 安徽江淮汽车集团股份有限公司 | Knuckle structure and vehicle front axle |
US11254358B2 (en) * | 2017-09-27 | 2022-02-22 | Hubei Tri-Ring Forging Co., Ltd. | Steering knuckle |
Families Citing this family (5)
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US9598104B1 (en) | 2015-11-30 | 2017-03-21 | Arvinmeritor Technology, Llc | Steering knuckle assembly having a stop bolt assembly and method of manufacture |
US10494015B2 (en) * | 2016-09-23 | 2019-12-03 | Dana Heavy Vehicle Systems Group, Llc | Steer axle with integrated directional control |
US10421488B2 (en) | 2017-03-23 | 2019-09-24 | Arvinmeritor Technology, Llc | Axle assembly with tapered kingpin interface |
CN108556911A (en) * | 2018-07-06 | 2018-09-21 | 费凌翔 | A kind of spindle of easy disassembly |
CN113016368B (en) * | 2021-03-11 | 2022-10-25 | 江苏沃得高新农业装备有限公司 | Traction structure of square bale bundling machine |
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