FORM 2
THE PATENTS ACT 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See Section 10 and Rule 13]
TITLE OF THE INVENTION
CAMBER ADJUSTMENT FOR SUSPENSION
APPLICANT
TATA MOTORS LIMITED,
an Indian company having its registered office at Bombay House,
24 Homi Mody Street, Hutatma Chowk,
Mumbai 400001, Maharashtra, India
INVENTORS
1) Santosh Kumar Singh, 2) Shamsher Singh Ghatoude, and 3) Shripad Sureshrao Pardikar
All are Indian nationals of
TATA MOTORS LIMITED,
an Indian company having its registered office at Bombay House,
24 Homi Mody Street, Hutatma Chowk,
Mumbai 400 001, Maharashtra, India
PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the invention and the manner in which it is performed.

FIELD OF THE INVENTION
The present invention generally relates to camber adjustment for suspension of a vehicle.
BACKGROUND OF THE INVENTION
The present day vehicle has a fixed camber or there is no camber adjustment mechanism provided in the vehicle. During vehicle running due to wear and tear of the bushes, deformation in the support members many times the wheel geometry gets disturbed from the factory fitted specification and this results in early tyre wear, one side pulling. Due to absence of camber adjustment mechanism on the vehicle, the wheel geometry cannot be reset to original specification and the tyre wear continues. To resolve this the lower links , struts, needs to be replaced which is a very costly solution to the problem.
Hence it becomes necessary to provide the camber adjustment on the vehicle.
OBJECTS OF THE DISCLOSURE
One object of the present disclosure is to provide a camber adjustment on a suspension where the conventional camber adjustment is not possible due to space constraints.
Another object of the present disclosure is to prevent the tyre wear and the associate problems due to disturbance in the wheel geometry.
BRIEF DESCRIPTION OF THE DRAWINGS
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 detailed 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 suspension assembly including a camber adjustment mechanism of the present disclosure, in one embodiment of the present disclosure;
FIG. 2 illustrates a suspension assembly including a camber adjustment mechanism of the present disclosure along with other components, in one embodiment of the present disclosure;
FIG. 3 illustrates an assembly of camber bracket, camber bolt and floating nut, in one embodiment of the present disclosure; and
FIG. 4 illustrates an exploded view of the Camber adjustment mechanism, in one embodiment of the present disclosure.
FIG. 5 illustrates an exploded view of the knuckle bracket showing clearance between the upper bolt and knuckle, in one 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 illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTIONOF THE INVENTION
The foregoing has broadly outlined the features and technical advantages of the present disclosure in order that the detailed description of the disclosure that follows may be better understood. Additional features and advantages of the

disclosure will be described hereinafter which form the subject of the claims of the disclosure. It should be appreciated by those skilled in the art that the conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. It should also be realized by those skilled in the art that such equivalent constructions do not depart from the spirit and scope of the disclosure as set forth in the appended claims. The novel features which are believed to be characteristic of the disclosure, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures. It is to be expressly understood, however, that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present disclosure.
The present invention discloses a camber adjustment for suspension comprising a knuckle (1) configured for mounting a strut assembly (7) and the brake drum (8); a steering arm bracket (2) configured to be mounted on said knuckle (1) along with said strut (7) is the using upper bolt (9) and lower bolt (10); at least one camber bracket (3) configured to be mounted over the upper bolt (9); at least one floating nut assembly (4) configured to be mounted in the hole of said camber bracket (3); at least one camber bolt (5) configured for passing through the floating nut assembly (4) and for tightening it into the threaded hole provided in in radial direction on said knuckle (1) to facilitate the predetermined pivotal movement of the knuckle assembly against lower bolt (10) by radially inward and/or outward movement of said camber bolt (5) in the knuckle (1).
The floating nut assembly (4) comprising of a nut welded to a grooved sleeve configured to be mounted in the hole of the camber bracket (3). The groove on the sleeve of said floating nut assembly (4) is provided for mounting circlip (11) to hold said floating nut assembly (4) in the hole in the camber bracket (3). The upper bolt (9) is configured to be of smaller diameter to the diameter of the

knuckle hole through which it passes to provide considerable play (12) between the knuckle (1) hole and the upper bolt (9) to facilitate the predetermined pivotal movement of the knuckle assembly against said lower bolt (10). The floating nut assembly (4) on the camber bolt (5) is configured to be rotated in clockwise and anticlockwise direction to facilitate said camber bolt (5) to move in outward and inward direction respectively thereby moving knuckle (1) pivotally against the lower bolt (10) for providing predetermined camber on the wheel. The upper bolt (9) and the lower bolt (10) are configured to be tightened to retain the knuckle (1) in the position after adjusting the predetermined camber on the wheel.
The strut suspension consists of strut assembly (7) mounted on Knuckle (1) using two bolts (9,10). The knuckle (1) contains the bearing (Not shown) over which the brake drum (8) is mounted. The strut (7) is mounted along with the steering arm bracket (2) using upper bolt (9) and lower bolt (10). The camber bracket (3) is mounted over the upper bolt (9). A floating nut assembly (4) comprising of a nut welded to a grooved sleeve is mounted in the hole of the camber bracket (3). The floating nut assembly (4) is held in place using a circlip (11) which is inserted in to the groove of the sleeve thereby preventing the nut (4) from coming out of the hole in the camber bracket (3).
The knuckle (1) has a threaded hole in radial direction. A Camber bolt (5) passed through the floating nut assembly (4) and is tightened into the threaded hole into the knuckle (1). The hole of the knuckle (1) through which the upper bolt (9) passes is larger in size to that of the size of the upper bolt (9) to provide considerable play (12) between the knuckle (1) hole and the upper bolt (9), to facilitate the predetermined pivotal movement of the knuckle assembly against lower bolt (10) by radially inward and/or outward movement of camber bolt (5) in the knuckle (1).
Now when the floating nut (4) on the camber bolt (5) is rotated in clockwise and anticlockwise direction when seen from the drum (8) side it causes the camber

bolt (5) to move out and inward direction respectively. Since the knuckle (1) is attached to the camber bolt (5) the knuckle (1) is also forced to move along with the camber bolt (5) by pivoting on the lower bolt (10). Once the desired camber is adjusted on the wheel by moving the knuckle (1) in or out , the upper bolt (9) and the lower bolt (10) are fully tightened to retain the knuckle (1) in the desired location.
Advantages
• The packaging constraint associated with the use of conventional Camber bolt mechanism is eliminated.
• This mechanism is cost effective than the conventional Camber bolt mechanism.
• No changes are required in Knuckle if the vehicle is to be made without camber adjustment.
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."

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 and spirit being indicated by the following claims.

We Claim:
1. Camber adjustment for Suspension comprising
a knuckle (1) configured for mounting a strut assembly (7) and the brake drum (8);
a steering arm bracket (2) configured to be mounted on said knuckle (1) along with said strut (7) is the using upper bolt (9) and lower bolt (10);
at least one camber bracket (3) configured to be mounted over the upper bolt (9);
at least one floating nut assembly (4) configured to be mounted in the hole of said camber bracket (3);
at least one camber bolt (5) configured for passing through the floating nut assembly (4) and for tightening it into the threaded hole provided in in radial direction on said knuckle (1) to facilitate the predetermined pivotal movement of the knuckle assembly against lower bolt (10) by radially inward and/or outward movement of said camber bolt (5) in the knuckle (1).
2. The Camber adjustment for Suspension as claimed in claim 1 wherein said floating nut assembly (4) comprising of a nut welded to a grooved sleeve configured to be mounted in the hole of the camber bracket (3).
3. The Camber adjustment for Suspension as claimed in claim 1 wherein said groove on the sleeve of said floating nut assembly (4) is provided for mounting circlip (11) to hold said floating nut assembly (4) in the hole in the camber bracket (3).
4. The Camber adjustment for Suspension as claimed in claim 1 wherein said upper bolt (9) is configured to be of smaller diameter to the diameter of the knuckle hole through which it passes to provide considerable play between the knuckle (1) hole and the upper bolt (9) to facilitate the predetermined pivotal movement of the knuckle assembly against said lower bolt (10).

5. The Camber adjustment for Suspension as claimed in claim 1 wherein said floating nut assembly (4) on the camber bolt (5) is configured to be rotated in clockwise and anticlockwise direction to facilitate said camber bolt (5) to move in outward and inward direction respectively thereby moving knuckle (1) pivotally against the lower bolt (10) for providing predetermined camber on the wheel.
6. The Camber adjustment for Suspension as claimed in claim 1 wherein said upper bolt (9) and the lower bolt (10) are configured to be tightened to retain the knuckle (1) in the position after adjusting the predetermined camber on the wheel.