FORM 2
THE PATENTS ACT, 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See Section 10 and Rule 13]
TITLE: “AN ASSEMBLY FOR ADJUSTING A CASTER ANGLE FOR A WHEEL AND
A METHOD THEREOF”
NAME AND ADDRESS OF THE APPLICANT:
TATA MOTORS PASSENGER VEHICLES LIMITED of Floor 3, 4, Plot-18, Nanavati Mahalaya, Mudhana Shetty Marg, BSE, Fort, Mumbai, Mumbai City, Maharashtra, 400001 India
Nationality: India.
The following specification particularly describes the invention and the manner it is to be performed.

TECHNICAL FIELD
Present disclosure, in general, relates to field of automobiles. Particularly, but not exclusively, the present disclosure relates to an assembly for adjusting a caster angle for a wheel of a vehicle. Further embodiments of the present disclosure discloses about a method for adjusting a caster angle for a wheel of a vehicle.
BACKGROUND OF THE DISCLOSURE
Vehicles such as passenger vehicles and commercial vehicles include a vehicle body which is mounted on a chassis and the entire chassis and the vehicle body are supported by wheels of the vehicle. These wheels of the vehicle generally are mounted to wheel hubs that are removably fixed to the chassis of the vehicle. Further, these wheel hubs comprises of various moving parts such as discs, coil springs, tie rods, struts etc. more specifically, coil springs and struts are key suspension components that help absorb bumps and road undulations during movement of the vehicle. Generally, axis of the strut assembly makes an angle with the vertical axis of the wheel hub known as a castor angle. The strut assembly is mounted on a knuckle of the wheel hub that are connected to a lower control arm with a ball joints. In some occasions, stress on the struts are large which may deform the strut assembly which also causes the castor angle to alter. Such change in castor angle leads to vehicle instability.
To overcome the above problem a mechanism [herein after interchangeably used as adjustment mechanism] is being provided between the ball joint and the lower control arm. The adjustment mechanisms are designed to fixedly mount the ball joint with the lower control arm. If there is any change in the castor angle of the vehicle due to the deformation of the strut assembly then the castor angle can be adjusted with the help of the adjustment mechanism. However, the conventional mechanism uses larger number of parts to adjust the castor angle of the vehicle. Cost of manufacturing also drastically increases due to increased parts. Hence, there is a need to provide a castor adjustment mechanism that can be easily operated to adjust the castor angle of the wheel of the vehicle.
Present disclosure is directed to overcome one or more limitations stated above or any other limitations associated with the known arts.

The drawbacks/difficulties/disadvantages/limitations of the conventional techniques explained in the background section are just for exemplary purpose and the disclosure would never limit its scope only such limitations. A person skilled in the art would understand that this disclosure and below mentioned description may also solve other problems or overcome the other drawbacks/disadvantages of the conventional arts which are not explicitly captured above.
SUMMARY OF THE DISCLOSURE
One or more shortcomings of the limitations stated above are overcome by an assembly and a method for adjusting a caster angle for a wheel of a vehicle as claimed, and additional advantages are provided through the provision of the system as claimed in the present disclosure. Additional features and advantages are realized through the aspects and techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.
In one non limiting embodiment of the present disclosure, an assembly for adjusting a caster angle for a wheel of a vehicle is disclosed. The assembly includes a mounting bracket, defined with a first segment. The first segment is defined with a plurality of first slots and at least one first hole. A lower control arm is defined with at least one second slot and comprising an opening at one end. The opening is configured to receive the first segment. The at least one second slot compliments the at least one first hole of the mounting bracket. The at least one second slot and at least one first hole are structured to receive an eccentric bolt. The assembly further includes at least one eccentric plate fixedly mounted to a bottom portion and an upper portion of the lower control arm. The at least one eccentric plate is configured to guide the eccentric bolt. The eccentric bolt is operable in a clockwise direction and in an anti-clockwise direction to adjust the caster angle of the wheel.
In an embodiment of the present disclosure, the one end of the lower control arm is defined with a plurality of second holes. The plurality of second holes compliments the plurality of first slots of the mounting bracket.

In an embodiment of the present disclosure, the plurality of first slots of the mounting bracket extends along an axis (A-A) and the at least one second slot of the lower control arm extends along an axis (B-B).
In an embodiment of the present disclosure, a washer provided at the upper portion of the one end of the lower control arm is enclosed between one of the at least one eccentric plate.
In an embodiment of the present disclosure, the washer is defined with a cutout. The cutout is at an offset from a substantially center of the washer and is structured to receive a shank of the eccentric bolt.
In an embodiment of the present disclosure, the mounting bracket is defined with a ball joint movably mounted on a second segment of the mounting bracket. The ball joint is structured to mount with a knuckle.
In an embodiment of the present disclosure, the shank portion of the eccentric bolt is structured to rotatably receive a nut, such that the eccentric bolt fastens the washer, the first segment of the mounting bracket and the one end of the lower control arm.
In an embodiment of the present disclosure, rotation of the eccentric bolt in the clockwise direction and in the anti-clockwise direction slides the mounting bracket along a length of at least one second slot of the lower control arm and a length of the plurality of first slots of the mounting bracket to adjust the caster angle (A) of the wheel.
In an embodiment of the present disclosure, the plurality of first slots of the first segment of the mounting bracket and the plurality of second holes of the mounting bracket are structured to receive a plurality of fasteners to guide the mounting bracket during the adjustment of the caster angle of the wheel.
In another non limiting embodiment, a method for adjusting a caster angle for a wheel of a vehicle. The method includes unfastening a first segment of the mounting bracket and one end of the lower control arm by loosening a plurality of fasteners of the eccentric bolt. The method further includes rotating the eccentric bolt in a clockwise direction and/or in an anti-clockwise

direction and adjusting the caster angle of the wheel. Further, fastening the plurality of fasteners of the eccentric bolt to secure the adjusted caster angle of the wheel.
In yet another non limiting embodiment, a vehicle, includes a chassis, a body frame mounted to the chassis, a wheel hub mounted to the chassis and configured to receive a wheel. A knuckle mounted to a strut and one end of the strut is mounted with an assembly. The assembly includes a mounting bracket, defined with a first segment wherein the first segment is defined with a plurality of first slots and at least one first hole. A lower control arm defined with at least one second slot and comprising an opening at one end. The opening is configured to receive the first segment, and the at least one second slot compliments the at least one first hole of the mounting bracket. The at least one second slot and the at least one first hole are structured to receive an eccentric bolt. At least one eccentric plate fixedly mounted to a bottom portion and an upper portion of the lower control arm. The at least one eccentric plate is configured to guide the eccentric bolt. The eccentric bolt is operable in a clockwise direction and in an anti-clockwise direction to adjust the caster angle of the wheel.
It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined together to form a further embodiment of the disclosure.
The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The novel features and characteristic of the disclosure are set forth in the disclosure. The disclosure itself, however, as well as a preferred mode of use, further objectives, and advantages thereof, will best be understood by reference to the following description of an illustrative embodiment when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:

Fig. 1 illustrates a side view of a wheel hub of a vehicle, in accordance with an embodiment of the present disclosure.
Fig. 2 illustrates an isometric view of an assembly for adjusting a castor angle for a wheel of the vehicle, in accordance with an embodiment of the present disclosure.
Fig. 3 illustrates an exploded view of the assembly of Fig 2, in accordance with an embodiment of the present disclosure.
Fig. 4 illustrates an isometric side view of an eccentric bolt of the assembly of Fig 2, in accordance with an embodiment of the present disclosure.
Fig. 5 illustrates an isometric top view of a washer of the assembly of Fig 2, in accordance with an embodiment of the present disclosure.
Fig. 6 illustrates an isometric top view of an eccentric plate of the assembly of Fig 2, in accordance with an embodiment of the present disclosure.
Fig. 7 illustrates an isometric side view of fasteners of the assembly of Fig 2, in accordance with an embodiment of the present disclosure.
Fig. 8a illustrates a side view representation of change in castor angle during adjustment of a caster angle for a wheel of a vehicle during clockwise rotation, in accordance with an embodiment of the present disclosure.
Fig. 8b illustrates a side view representation of change in castor angle during adjustment of a caster angle for a wheel of a vehicle during anticlockwise rotation, in accordance with an embodiment of the present disclosure.
Fig. 9a illustrates a bottom view of the eccentric bolt during adjustment of the caster angle in neutral position, in accordance with an embodiment of the present disclosure.
Fig. 9b illustrates a bottom view of the eccentric bolt during adjustment of the caster angle in clockwise direction, in accordance with an embodiment of the present disclosure.

Fig. 9c illustrates a bottom view of the eccentric bolt during adjustment of the caster angle in an anti-clockwise direction, in accordance with an embodiment of the present disclosure.
The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the system and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTION
While the embodiments in the disclosure are subject to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the figures and will be described below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure.
It is to be noted that a person skilled in the art would be motivated by the present disclosure and modify various features of the mechanism without departing from the scope of the disclosure. Therefore, such modifications are considered to be part of the disclosure. Accordingly, the drawings show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.
The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that a device, a mechanism, a system, and a method, that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such system, or assembly, or device, or mechanism. In other words, one or more elements in a device, a system or an assembly proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the device or the system or the mechanism.
Unless the context of the disclosure describes or indicates a different interpretation, any reference to an object in the specification that is preceded by a definite or indefinite article, such

as 'the', 'a' or 'an', should be understood to encompass both the singular and the plural forms of the object”. Accordingly, “a” means “at least one/ one or more”. The phrase “a/an X” may be construed as “at least one/one or more X”.
In the following description of the embodiments of the disclosure, reference is made to the accompanying figure that form a part hereof, and in which are shown by way of illustration of specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The following description is, therefore, not to be taken in a limiting sense.
In accordance with various embodiments of the present disclosure, an assembly for adjusting a caster angle for a wheel of a vehicle. The assembly of the present discloser is made of lesser components comparative of the conventional assembly therefore the cost of manufacturing the assembly of the present discloser is comparatively less than the convention assembly. The assembly includes a mounting bracket, defined with a first segment. The first segment is defined with a plurality of first slots and at least one first hole. A lower control arm defined with at least one second slot and an opening at one end. The opening is configured to receive the first segment. The at least one second slot compliments the at least one first hole of the mounting bracket. The at least one second slot and the at least one first hole are structured to receive an eccentric bolt. The assembly further includes at least one eccentric plate fixedly mounted to a bottom portion and an upper portion of the lower control arm. The at least one eccentric plate is configured to guide the eccentric bolt. The eccentric bolt is operable in a clockwise direction and in an anti-clockwise direction to adjust the caster angle of the wheel.
Reference will now be made to the exemplary embodiments of the disclosure, as illustrated in the accompanying drawings. Wherever possible, same numerals will be used to refer to the same or like parts. The following paragraphs describe the present disclosure with reference to Figs. 1 to 9 in conjunction.

Referring to Fig. 1 illustrates a side view of a wheel hub (300) of a vehicle [not shown herein Fig]. In an embodiment, the vehicle may be, for example, a passenger vehicle or a commercial vehicle. The vehicle may include a chassis [not shown herein Fig], and a body frame [not shown] that is mounted to the chassis. Further, the chassis is mounted with a wheel hub (300). The wheel hub (300) may be steered by a driver or operator to change direction of the vehicle. The wheel (35) may be mounted on the wheel hub (300) through fasteners. The wheel hub (300) may be movably mounted on a knuckle (11) The knuckle (11) is further mounted to a strut (40) and the knuckle provides support to the strut (40). The strut (40) may include an energy absorbing means either one of but not limiting to helical springs, coil spring and the like. One end of the knuckle (11) may be connected to an assembly (100). Referring to Fig 2 and Fig 3 in conjunction represents an isometric view of an assembly (100) and an exploded view of the assembly (100), in accordance with an embodiment of the present disclosure. The assembly (100) may include a mounting bracket (2). The mounting bracket (2) that may be defined by a first segment (4) and a second segment (6). The mounting bracket (2) is configured to receive a ball joint (5). The ball joint (5) may be movably received at the second segment (6). The ball joint (5) is structured to mount with the knuckle (11) connected to the chassis. The first segment (4) of the mounting bracket may be defined with a plurality of first slots (12). The plurality of first slots (12) may extend along an axis (A-A) and the shape of the plurality of first slots (12) may be either one of but not limiting to an elliptical, ovel and the like. Further, an outer periphery of the plurality of first slots (12) may have a stepped protrusion defined outwardly from an upward surface and a lower surface of the mounting bracket (2). The first segment (4) of the mounting bracket (2) may further be defined with at least one first hole (14). The shape of at least one first hole (14) may either be one of but not limiting to a circle, a rectangular in shape. The assembly (100) may include a lower control arm (8). One end of the lower control arm (8) may be defined with a bottom portion (16), an upper portion (18) and an opening (32) therebetween. The opening (32) is configured to receive the whole length of the first segment (4). Further, the one end of the lower control arm (8) securely holds the first segment (4) during the vehicle movement. The bottom portion (16) and the upper portion (18) of the one end (9) of the lower control arm (8) may be defined with at least one second slot (22) and the at least one second slot extends along an axis (B-B). The shape of at least one second slot (22) may either be one of but not limiting to an elliptical, ovel shape and the like. Also, the at least one second slot (22) may compliment the

at least one first hole (14) of the mounting bracket. Further, the bottom portion (16) and the upper portion (18) of the one end (9) of the lower control arm (8) may be defined with a plurality of second holes (24). The shape of the at least one first hole (14) may either be one of but not limiting to a circle, rectangular and like. The plurality of second holes (24) of the lower control arm (8) may compliment the plurality of first slots (12) of the mounting bracket (2).
Referring to Fig 3, the assembly (100) may include an eccentric bolt (20) that may pass through the at least one second slot (22) of the lower control arm (8) and the at least one first hole (14) of the mounting bracket (2). The eccentric bolt (20) may either be mounted on the bottom portion (16) or the upper portion (18) of the lower control arm (8). The eccentric bolt (20) is operable in a clockwise direction (X) and in an anti-clockwise direction (Y) to adjust a castor angle (A) of the wheel. In an embodiment, adjustment in the clockwise direction (X), tends the caster angle (A) to increase and adjustment in an anti-clockwise direction (Y), tends the castor angle (A) to decrease. The eccentric bolt (20) may be provided with a disk (20a) and a shank (20b) arrangement, wherein the center of the disk (20a) may be at an offset from the center of the shank (20b). Further, the disk (20a) may be provided with a marking to showcase the change in angle of the castor angle (A). During the rotation of the eccentric bolt (20) in the clockwise direction (X) and in the anti-clockwise direction (Y) the disk (20a) of the eccentric bolt (20) may be guided by at least one eccentric plate (10). The at least one eccentric plate (10) may be fixedly mounted on the bottom portion (16) and the upper portion (18) of the lower control arm (8). The at least one eccentric plate (10) may have chamfered edges. The at least one eccentric plate (10) may be either mounted through one of permanent joining means by at least one of but not limited to welding, riveting and the like. The shank (20b) of the eccentric bolt is structured to receive a washer (26). The washer (26) may be defined with a cutout (27) from substantially center of the washer (26). The cutout (27) is structured to receive the shank (20b) of the eccentric bolt (20). The washer (26) may either be mounted on the bottom portion (16) or the upper portion (18) of the lower control arm (8) and is enclosed between one of the at least one eccentric plate (10). The washer (26) may be mounted on the portion (16,18) opposite to the portion (16,18) on which the eccentric bolt (20) is mounted on. The shank (20b) portion of the eccentric bolt (20) is structured to rotatably receive a nut (23). The nut (23) can be either one of but not limiting to a G-nut, a square nut, a flange nut and like. The nut (23) along with the eccentric bolt (20) fastens

the washer (26), the first segment (4) of the mounting bracket (2) and the one end (9) of the lower control arm (8) therebetween. Further, to mount the mounting bracket (2) and the one end (9) of the lower control arm (8) a plurality of fasteners (30) may be provided. The plurality of fasteners (30) can be either one of but not limiting to a nut bolt arrangement [as illustrated in Fig 7]. The plurality of fasteners (30) passes from the plurality of first slots (12) and through the plurality of second holes (24). The plurality of fasteners (30) support/guide the mounting bracket (2) during the adjustment of the caster angle (A) of the wheel (35).
Figs 8a, 8b and Figs 9a, 9b and 9c in conjunction illustrates a side view representation of change in castor angle during adjustment of a caster angle during clockwise and anticlockwise rotation and illustrates a bottom view of the eccentric bolt during adjustment of a caster angle for the wheel during the neutral position, the clockwise direction (X) and the anticlockwise direction (Y) of the vehicle. While rotating the eccentric bolt (20) in the clockwise direction (X) [as illustrated in Fig 9b] from the neutral position, the eccentric bolt (20) rotates inside one of the at least one eccentric plate (10) and the ball joint (5) is displaced towards a first displacement (O). Due to the shifting of the ball joint (5) towards the first displacement (O) the castor angle (A) will increase [as illustrated in Fig 8a]. In the first example, assuming the neutral castor angle is 2°46’ [as illustrated in Fig 9a], then rotating the eccentric bolt (20) in clockwise direction (X) [as illustrated in Fig 9b] the ball joint (5) will displace by 2mm in the O direction. Due to this the castor angle (A) may increase to 2°54’ and the castor angle difference of +0°08’ is attained, more specifically the difference of +8 minutes of the castor angle is achieved. In the second example, assuming the neutral castor angle is 2°46’, then rotating the eccentric bolt (20) in clockwise direction (X) the ball joint (5) will displace by 4mm in the O direction. Due to this the castor angle (A) may increase to 3°02’ and the castor angle difference of +0°16’ is attained, that is the difference of +16 minutes of the castor angle is achieved.
Similarly, while rotating the eccentric bolt (20) in the anti-clockwise direction (Y) [as illustrated in Fig 9c] from the neutral position, the ball joint (5) is displaced towards a second displacement (P). Due to the shifting of the ball joint (5) towards the second displacement (P) the castor angle (A) will decrease [as illustrated in Fig 8b]. In another example, assuming the neutral castor angle to be 2°46’ [as illustrated in Fig 9a] if the eccentric bolt (20) is rotated in anti-clockwise direction (Y) then the ball joint (5) will shift by 2mm in the P direction [as illustrated in Fig 9c].

Due to this the castor angle (A) may decrease to 2°38’ and the castor angle difference of -0°08’ is attained, that is the difference of -8 minutes of the castor angle is achieved. In a second example, assuming the neutral castor angle to be 2°46’ if the eccentric bolt (20) is rotated in anti-clockwise direction (Y) then the ball joint (5) will shift by 4mm in the P direction. Due to this, the castor angle (A) may decrease to 2°30’ and the castor angle difference of -0°16’ is attained, more specifically the difference of -16 minutes of the castor angle is achieved. The assembly (100) of the present application, helps in achieving easy adjustment of the castor angle for any given vehicle.
In an embodiment, a method includes adjusting the caster angle (A) for a wheel (35) of the vehicle is disclosed. The method includes unfastening (210) the first segment (4) of the mounting bracket (2) and the one end (9) of the lower control arm (8) by loosening the plurality of fasteners (30) of the eccentric bolt (20). Further, rotating the eccentric bolt (20) in the clockwise direction (X) and/or in the anti-clockwise direction (Y) and adjusting the caster angle (A) of the wheel (35). Accordingly, fastening the plurality of fasteners (30) of the eccentric bolt (20) to secure the adjusted caster angle (A) of the wheel (35).
The present embodiment of the assembly (100) for adjusting the caster angle (A) uses reduced number of components. Due to the used of the reduced number of components the manufacturing cost of the assembly (100) is drastically reduced. Further, the process of manufacturing the assembly (100) is comparatively easy as compared to the conventional assemblies.
It should be noted that in an exemplary embodiment, as seen in the Figs. 1-10 the features, construction, position and connections should not be construed as a limitation as the assembly, may include any other type of features, construction, and connections which may work with other combinations for adjusting the caster angle for the wheel of the vehicle.
Thus, various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope.
Equivalents:

With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of

A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.”
In addition, where features or aspects of the disclosure are described in terms of Markush groups, those skilled in the art will recognize that the disclosure is also thereby described in terms of any individual member or subgroup of members of the Markush group.
While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope.

Table of Referral Numerals:

Referral Numeral Description
2 Mounting bracket
4 First segment
5 Ball Joint
6 Second segment
8 Lower control arm
9 One end of the lower control arm
10 Eccentric plate
11 knuckle
12 Plurality of first slots
14 At least one first hole
16 Bottom portion
18 Upper portion
20 Eccentric bolt
20a Disk
20b Shank
22 At least one second slot
23 Nut
24 Plurality of second holes
26 Washer
27 Cutout
30 Plurality of fasteners
32 Opening
35 Wheel
40 Strut
100 Assembly
200 Vehicle
300 Wheel assembly
A Caster angle
O First displacement
P Second displacement

We Claim:
1) An assembly (100) for adjusting a caster angle (A) for a wheel (35) of a vehicle, the assembly
(100) comprising:
a mounting bracket (2), defined with a first segment (4) wherein the first segment (4) is defined with a plurality of first slots (12) and at least one first hole (14);
a lower control arm (8) defined with at least one second slot (22) and comprising an opening (32) at one end (9), wherein the opening (32) is configured to receive the first segment (4), and the at least one second slot (22) compliments the at least one first hole (14) of the mounting bracket (2), wherein the at least one second slot (22) and the at least one first hole (14) are structured to receive an eccentric bolt (20); and
at least one eccentric plate (10) fixedly mounted to a bottom portion (16) and an upper portion (18) of the lower control arm (8), wherein the at least one eccentric plate (10) is configured to guide the eccentric bolt (20), and
wherein the eccentric bolt (20) is operable in a clockwise direction (X) and in an
anti-clockwise direction (Y) to adjust the caster angle (A) of the wheel (35).
2) The assembly (100) as claimed in claim 1, wherein the one end (9) of the lower control arm
(8) is defined with a plurality of second holes (24), the plurality of second holes (24)
compliments the plurality of first slots (12) of the mounting bracket (2).
3) The assembly (100) as claimed in claim 1, wherein the plurality of first slots (12) of the mounting bracket (2) extends along an axis (A-A) and the at least one second slot (22) of the lower control arm (8) extends along an axis (B-B).
4) The assembly (100) as claimed in claim 1 comprises a washer (26) provided at the upper portion (18) of the one end (9) of the lower control arm (8) and is enclosed between one of the at least one eccentric plate (10).
5) The assembly (100) as claimed in claim 4, wherein the washer (26) is defined with a cutout (27) offset from a substantially centre of the washer (26) and is structured to receive a shank (20b) of the eccentric bolt (20).

6) The assembly (100) as claimed in claim 1, wherein the mounting bracket (2) is defined with a ball joint (5) movably mounted on a second segment (6) of the mounting bracket and the ball joint (5) is structured to mount with a knuckle (11).
7) The assembly (100) as claimed in claim 1, wherein the shank portion of the eccentric bolt (20) is structured to rotatably receive a nut (23), such that the eccentric bolt (20) fastens the washer (26), the first segment (4) of the mounting bracket (2) and the one end (9) of the lower control arm (8).
8) The assembly (100) as claimed in claim 1, wherein rotation of the eccentric bolt (20) in the clockwise direction (X) and in the anti-clockwise direction (Y) slides the mounting bracket (2) along a length of at least one second slot (22) of the lower control arm (8) and a length of the plurality of first slots (12) of the mounting bracket (2) to adjust the caster angle (A) of the wheel (35).
9) The assembly (100) as claimed in claim 1, wherein the plurality of first slots (12) of the first segment (4) of the mounting bracket (2) and the plurality of second holes (24) of the one end (9) of the lower control arm (8) are structured to receive a plurality of fasteners (30) to guide the mounting bracket (2) during the adjustment of the caster angle (A) of the wheel (35).
10) A method for adjusting a caster angle (A) for a wheel (35) of a vehicle, comprising;
unfastening a first segment (4) of the mounting bracket (2) and one end (9) of the lower control arm (8) by loosening a plurality of fasteners (30) of the eccentric bolt (20);
rotating the eccentric bolt (20) in a clockwise direction (X) and/or in an anti-clockwise direction (Y) and adjusting the caster angle (A) of the wheel (35);
fastening the plurality of fasteners (30) of the eccentric bolt (20) to secure the adjusted caster angle (A) of the wheel (35).
11) A vehicle, comprising;
a chassis;
a body frame mounted to the chassis;
a wheel hub (300) mounted to the chassis and configured to receive a wheel (35);

a knuckle (11) mounted to a strut and one end of the strut is mounted with an assembly, wherein, the assembly comprises:
a mounting bracket (2), defined with a first segment (4) wherein the first segment
(4) is defined with a plurality of first slots (12) and at least one first hole (14);
a lower control arm (8) defined with at least one second slot (22) and comprising an opening (32) at one end (9), wherein the opening (32) is configured to receive the first segment (4), and the at least one second slot (22) compliments the at least one first hole (14) of the mounting bracket (2), wherein the at least one second slot (22) and the at least one first hole (14) are structured to receive an eccentric bolt (20); and at least one eccentric plate (10) fixedly mounted to a bottom portion (16) and an
upper portion (18) of the lower control arm (8), wherein the at least one eccentric plate
(10) is configured to guide the eccentric bolt (20), and
wherein the eccentric bolt (20) is operable in a clockwise direction (X) and in an
anti-clockwise direction (Y) to adjust the caster angle (A) of the wheel (35).