VEHICLE WHEEL ALIGNMENT APPARATUS AND SYSTEM, AND RELATED METHODS THEREOF
20180209785 ยท 2018-07-26
Inventors
Cpc classification
B33Y10/00
PERFORMING OPERATIONS; TRANSPORTING
B29C64/118
PERFORMING OPERATIONS; TRANSPORTING
G01B2210/14
PHYSICS
G01B2210/16
PHYSICS
B33Y80/00
PERFORMING OPERATIONS; TRANSPORTING
International classification
B29C64/118
PERFORMING OPERATIONS; TRANSPORTING
B33Y80/00
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A vehicle wheel alignment system has a frame member and an optical device mounted to the frame member. At least one shaft connected to the frame member, wherein the at least one shaft is positionable against a rim of the vehicle wheel, wherein the at least one shaft is constructed from a non-metal material. The system may allow for vehicle wheel alignments without scratching the face of the rim. Related methods, apparatuses, and systems are provided.
Claims
1. A vehicle wheel alignment system comprising: a frame member; an optical device mounted to the frame member; and at least one shaft connected to the frame member, wherein the at least one shaft is positionable against a rim of the vehicle wheel, wherein the at least one shaft is constructed from a non-metal material.
2. The vehicle wheel alignment system of claim 1, wherein the at least one shaft has a sidewall with a honeycomb structure forming at least a portion thereof.
3. The vehicle wheel alignment system of claim 2, wherein the honeycomb structure is formed using a three-dimensional (3D) printing process.
4. The vehicle wheel alignment system of claim 1, further comprising a magnetic securing mechanism positioned at least partially within the at least one shaft, wherein a rim-contact end of the at least one shaft is biased against the rim of the vehicle wheel when the magnet securing mechanism is activated.
5. The vehicle wheel alignment system of claim 1, wherein the at least one shaft is formed from a first leg and a second leg, wherein the first leg is connected to the second leg with a separable joint, and wherein the first and second leg are substantially coaxial.
6. The vehicle wheel alignment system of claim 5, wherein one of the first and second legs has a reduced diameter portion substantially at the separable joint, wherein the reduced diameter portion of one of the first and second legs is positionable within the other of the first and second legs.
7. The vehicle wheel alignment system of claim 1, wherein the at least one shaft has a non-planar rim-contact end.
8. The vehicle wheel alignment system of claim 7, wherein the non-planar rim-contact end further comprises at least one of: at least three contact tips which extend outwardly from a body of the at least one shaft; and a single cutout positioned along a continuous radial portion of the at least one shaft.
9. The vehicle wheel alignment system of claim 7, wherein the at least one shaft has the non-planar rim-contact end formed with at least two contact tips, wherein the at least two contact tips are formed from a first non-metal material and a body of the at least one shaft is formed from a second non-metal material, wherein the first non-metal material is different from the second non-metal material.
10. A method of determining an alignment of wheels of a vehicle with a vehicle wheel alignment system, the method comprising the steps of: positioning at least three shafts formed from a non-metal material against a rim of the vehicle wheel, wherein the at least three shafts are connected to a frame member, wherein an optical device is mounted to the frame member; locking the at least three shafts to the rim of the vehicle wheel with a magnetic securing mechanism; and determining an alignment of the vehicle wheel.
11. The method of claim 10, wherein the at least three shafts have sidewalls with a honeycomb structure forming at least a portion of the sidewalls thereof.
12. The method of claim 10, wherein the magnetic securing mechanism is positioned at least partially within the at least one shaft, wherein a rim-contact end of the at least one shaft is biased against the rim of the vehicle wheel when the magnet securing mechanism is activated.
13. The method of claim 10, wherein the at least three shafts are each formed from a first leg and a second leg, wherein the first leg is connected to the second leg with a separable joint, and wherein the first and second leg are substantially coaxial.
14. The method of claim 13, wherein one of the first and second legs has a reduced diameter portion substantially at the separable joint, wherein the reduced diameter portion of one of the first and second legs is positionable within the other of the first and second legs.
15. The method of claim 10, wherein the at least three shafts each have a non-planar rim-contact end, wherein the non-planar rim-contact end further comprises at least one of: at least three contact tips which extend outwardly from a body of the at least one shaft; and a single cutout positioned along a continuous radial portion of the at least one shaft.
16. The method of claim 10, wherein the at least three shafts each have a non-planar rim-contact end having at least two contact tips, wherein the at least two contact tips are formed from a first non-metal material and a body of the at least one shaft is formed from a second non-metal material, wherein the first non-metal material is different from the second non-metal material.
17. A method of manufacturing non-metal alignment shafts for vehicle wheel alignment system for use with at least one of an industrial vehicle and a commercial vehicle, the method comprising the steps of: providing at least one non-metal material; and three-dimensionally (3D) printing the at least one non-metal material into a shaft, wherein the shaft has a rim-contacting end.
18. The method of claim 17, wherein three-dimensionally (3D) printing the at least one non-metal material into the shaft further comprises forming at least a portion of a sidewall of the shaft with a honeycomb structure.
19. The method of claim 17, further comprising forming the rim-contacting end as a non-planar rim-contact end having at least two contact tips, wherein the at least two contact tips are 3D printed from a first non-metal material and a body of the at least one shaft is 3D printed from a second non-metal material, wherein the first non-metal material is different from the second non-metal material.
20. The method of claim 19, wherein the at least two contact tips are connected to an annular member, wherein the annular member is formed from the first non-metal material, and wherein the annular member is positioned within an annular cavity formed from the second non-metal material.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Many aspects of the disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
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DETAILED DESCRIPTION
[0023]
[0024] The system 10 may have particular uses to align the wheels of vehicles to the frame of the vehicle, especially the wheels of industrial or commercial vehicles, such as large trucks, tractor trailers, mass-transit vehicles, delivery trucks, or any similar vehicle. The system 10 has potential utility in all stages in the life of the vehicle, from initial construction alignment to aftermarket realignment. In contrast to conventional alignment devices which use metal shafts, usually constructed from aluminum, to mount a camera system to a vehicle's rim, the system 10 of the present disclosure has a particular benefit in the use of purely non-metal shafts to mount the frame member 20 carrying the optical device 30 to the rim 4. Among many benefits, the use of a non-metal shaft 40 prevents scratching of the vehicle rim 4 when the system 10 is mounted to the rim 4. In contrast, the metal shafts used conventionally are all formed from aluminum and have tips which abut the rim 4 face when positioned on the vehicle wheel. When the conventional system is locked to the vehicle wheel using magnetics, the application of force causes the aluminum tip of the shaft to dig into the rim face, which ultimately causes scratching on the rim. The use of non-metal shafts, in accordance with the present disclosure, does not have any metal-to-metal contact between the shafts and the rim, and therefore prevents this problem. In turn, the subject invention significantly lessens or eliminates the need to replace rims of new vehicles because they were scratched just before leaving a manufacturing facility. It is noted that the non-metal shafts 40 may be manufactured in a 3D printing process using non-metal materials, as discussed relative to
[0025] Moreover, it is noted that conventionally within the art, non-metal shafts are not present, nor contemplated, in any form; neither for preventing scratching against the expensive rims of the vehicles nor for providing sufficient rigidity and structural support within the shafts to achieve accurate alignment readings. The prior art uses metal shafts to provide the shafts with as much durability as possible, which the metal shafts provide to a certain degree. However, these material shafts have their shortcomings and continue to flex and experience fluctuations when the magnets are activated. Thus, while fully metal shafts may be sufficient for resisting certain degrees of fluctuations, they still fluctuate to a high enough degree to cause inaccuracies within the alignment systems.
[0026] As an example, Table 1, below, provides summarized results from a comparison audit of conventional metal shafts, in accordance with the prior art, and the non-metal shafts of the subject disclosure:
TABLE-US-00001 TABLE 1 Shaft Comparison Audit (mm/m, angular) Aluminum Aluminum Non-metal Shafts, Pit #1 Shafts, Pit #2 Shafts, Pit #2 Test Sample 1 1.3 0.6 2 Test Sample 2 1.8 0.8 2.1 Test Sample 3 1.5 0.9 2.1 Test Sample 4 1.5 0.7 2.1 Test Sample 5 1.5 0.9 2.3 Test Sample 6 1.6 0.7 2.2 Test Sample 7 1.7 0.8 2.1 Test Sample 8 1.5 0.4 2.2 Test Sample 9 1.6 0.7 2.2 Test Sample 10 1.6 0.7 2.1 Low 1.3 0.4 2 High 1.8 0.9 2.3 Average 1.56 0.72 2.14 Deviation from 0.1 0.104 0.068 Average
In the Shaft Comparison Audit of Table 1, wheel alignment the same, a fully stationary vehicle was audited using two different conventional systems using metal shafts and the system of the subject disclosure using non-metal shaft. Theoretically, achieving true alignment measurements from each of the tested devices would result in a zero (0) deviation from average value, since each tested device should provide the same values for each test sample. However, it was shown that with each of the conventional devices using metal shafts, there was a deviation from average which amounted to 0.1 to 0.104 mm/m. In contrast, the deviation average of the system of the subject invention having non-metal shafts was 0.068 mm/m, which is substantially far less than the conventional devices. The smaller deviation in trials correlates to industry savings in tire wear of the vehicle, improved gas mileage for the vehicle, and for the factory or manufacture of the vehicle, a reduction in warranty claims due to misalignment. Thus, it can be seen that the use of non-metal shafts in accordance with the subject disclosure can effect a substantial change in the alignment of vehicles, which in turn, can improve maintenance and operation of the vehicle.
[0027] As shown in
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[0030] As further shown in
[0031] It is noted that when either both leg portions are used, or when just the second leg 44 is used, it requires that the leg or legs be secured properly to the frame member and to each other, if applicable. Specifically, the leg joint 46 may include threaded connections, adhesive connections, snap or friction-fit fasteners, or any combination thereof to ensure that the first and second legs 42, 44 are secured together. The leg joint 46 may also include one of the first and second legs 42, 44 having a narrowed or reduced diameter portion having a smaller diameter which fits within the a regular diameter of the other leg, where a fastener is or is not positioned at the narrowed portion. At the frame 20, the first leg 42, or second leg 44, if applicable, may be secured to the frame 20 with a clamp mechanism 22, adhesive, another securing device, or any combination thereof.
[0032] To provide the best contact possible between the shaft 40 and the face 7 of the rim 4, the second leg 44 may include a rim-contacting end 48 that has a specifically-designed face which is designed to provide a match or near-match with specific rim designs.
[0033] For example, as shown in
[0034] Turning back to
[0035] In each of
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[0038] The differentiation between the different components of the second leg 44 may allow them to be manufactured using different materials, which are selected to improve performance of the second legs 44. For instance, in one example, the body of the second leg 44 may be manufactured from one material, whereas the contact tip 52 is manufactured from two or more materials. The end portion 50 may be manufactured from any number of materials. The difference of materials in the components can allow one component, e.g., the body of the second leg 44, to have particular material properties, while another component, e.g., the contact tip 52, has a different material property. In one example, the contact tip 52 is formed from two non-metal materials to increase its ability to prevent scratching against the rim all while providing a stable surface when the forces of magnetic clamping are applied.
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[0041] While the exact materials of manufacturing the second leg 44 (and the first leg 42, if used) may vary, it will be manufactured to be a non-scratching surface. To this end, the manufacture will not include the use of metals as is used in the conventional art. In one example of manufacture using a 3D printer, the second leg 44 is formed from a polylactic acid with a polymer foam infill. The form is created using a heated nozzle head to extrude the plastic into the form. An extruder head heated at 215 degrees Celsius will push filament with a diameter of 1.75 millimeters with a density of 100 kg/m.sup.3 is fed through an orifice heated at 215 C. The extruder will travel at a rate of 100 millimeters per second in the x/y direction and will create a layer with a height of 0.3 millimeters. The base in which the form is created will drop at a rate of 15 millimeters per second from the extrusion head. Each layer will be created within a 15 second window to create the optimal adhesion between layers. The nozzle diameter in which the plastic will be extruded through can range from 0.4-0.6 mm orifice. The form is then injected with a polymer foam and agitated with a water mixture for two hours to insure proper distribution and even expansion throughout. Once the foam has dried the entire assembly is then dipped in an acetone bath to smooth and bond all of the outside layers of the piece. Any number of variations, processes, or steps may be used with this exemplary description of 3D printing of the second leg 44.
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[0043] As is shown by block 102, at least three shafts formed from a non-metal material are positioned against a rim of the vehicle wheel, wherein the at least three shafts are connected to a frame member, wherein an optical device is mounted to the frame member. The at least three shafts are biased to the rim of the vehicle wheel with a magnetic securing mechanism (block 104). An alignment of the vehicle wheel is determined (block 106). The method may further include any of the steps, functions, features, or components described herein relative to any other figure.
[0044]
[0045] As is shown by block 202, the method of manufacturing non-metal alignment shafts for vehicle wheel alignment system for use with at least one of an industrial vehicle and a commercial vehicle includes providing at least one non-metal material. The at least one non-metal material is three-dimensionally (3D) printed into a shaft, wherein the shaft has a rim-contacting end (block 204). The method may further include any of the steps, functions, features, or components described herein relative to any other figure.
[0046] It should be emphasized that the above-described embodiments of the present disclosure, particularly, any preferred embodiments, are merely possible examples of implementations, merely set forth for a clear understanding of the principles of the disclosure. Many variations and modifications may be made to the above-described embodiment of the disclosure without departing substantially from the spirit and principles of the disclosure. All such modifications and variations are intended to be included herein within the scope of this disclosure and the present disclosure and protected by the following claims.