F O R M 2
THE PATENTS ACT, 1970 (39 of 1970)
COMPLETE SPECIFICATION (See section 10 and rule 13)
1. TITLE OF THE INVENTION
INTEGRATED ANTI ROLL BAR MOUNTING ON FRONT AXLE
2. APPLICANT(S) I
(a) NAME FORCE MOTORS LIMITED
(b) NATIONALITY INDIAN Company
(c) ADDRESS MUMBAI-PUNE ROAD,
AKURDI, PUNE 411 035,
MAHARASHTRA INDIA

FIELD OF INVENTION
This invention relates to anti roll bar mount on the front axle beamof vehicles and particularly to the integration of anti roll bar mounting directly on front axle beam avoiding use of conventional fastening means.
BACKGROUND OF THE INVENTION
Conventionally, Anti Roll bar is mounted on the axle beams with the help of clamps, brackets, support C clamp plate fastened with high strength mounting bolts to hold the assembly. Since the number of parts are more and more degree of freedom is available, there is issue of dislocation of the Anti roll bar clamp with time on the vehicle. This results in the loosening of the Anti roll bar rubber bush inside the assembly and it may fall while vehicle running in dynamic condition. The rigidity of complete assembly is less, causing the failure of mounting on the vehicle in a longer run.
In the prior art, an U.S. Pat. No. 5,788,264 discloses an anti roll bar assembly suitable for use in motor vehicle is mounted with respect to a cross beam by means of bearings which engage longitudinally extending portions of anti roll bar. The bearing engage the first and second end portions of an anti roll bar first and second end portions of an anti roll bar intermediate first and second free ends of the end portions and a central portion of the anti roll bar. The bearing fall on a common axis transverse to a longitudinal axis of the motor vehicle and permit adjustment transverse to the longitudinal axis of the vehicle to accommodate tolerance build up in manufacture of the motor vehicle. The present invention provides a modified anti roll bar assembly which will permit a reduction in diameter of the bar that may be used, with a consequent weight saving.
In another prior art, an U.S. Pat. No. 5,118,070 discloses a rubber mount for a stabilizer bar. The rubber mount used for mounting a stabilizer bar to the frame of a motor vehicle having a solid sleeve of low friction material inserted in the bore on the mount to allow the stabilizer bar to rotate freely and noiselessly within the mount. The sleeve being bonded or secured to the elastic or rubber support contained by a U shaped bracket secured to the motor vehicle

frame. The invention relates to a new and useful elastic stabilizer bar mount designed to eliminate the noise resulting from rotation of stabilizer bar within the mount. According to the invention , a sleeve made of a suitable low friction material is bonded to the inner diameter of a bore on an elastic support member. The sleeve provides a low friction surface on which the stabilizer bar may rotate, thus eliminating the noise or "squawk" problem.
SUMMARY OF INVENTION
Conventionally, anti roll bar mounting bracket on axle is complicated in design. Anti Roll bar is mounted on the axle beams with the help of clamps, brackets, support C clamp plate fastened with high strength mounting bolts to hold the assembly. Since the number of parts are more and more degree of freedom is available, there is issue of dislocation / deformation of the Anti roll bar clamp with time on the vehicle. This results in the loosening of the Anti roll bar rubber bush inside the assembly and it may fall while vehicle running in dynamic condition. Due to this, Anti Roll Bar (ARB) performance gets deteriorated and vehicle experience high rolling.
Therefore such as herein described, there is provided a the new design of anti-roll bar mounting integrated on front axle beamforincreased life and rigidity of the complete Anti roll bar mounting with bush assembly. Since thenumber of parts has reduced as compared to conventional design, In addition to the structuralintegrated, the invention has led to advantages like weight reduction; cost saving in themanufacturing process for sheet metal parts etc.
In an exemplary embodiment, the integrated anti-roll bar mount on front axle of a motor vehicle comprising of at least one anti-roll bar mount rubber bush assembly; at least one anti-roll bar clamp; at least two high strength bolts for mounting the anti-roll bar (ARB) clamp on axle beam; wherein the said integration is carried out by providing proper space for the anti-roll bar (ARB) clamp with ribs from sides on the axle itself to avoid bush slippage in lateral direction and holes are provided on the axle for passing bolts.

BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a sectional view of the conventional anti roll bar mounting on axle
Figure 2 is a pictorial representation of the conventional anti roll bar mounting on front axle
Figure 3 is a sectional view of the new design of integrated anti roll bar mounting on axle in accordance with the present invention;
Figure 4 is a pictorial representation of anti-roll bar bush and mounting integrated on front axlein accordance with the present invention;
Figure 5 is a assembly drawing of the new improved anti roll bar mounting assembly on front axlein accordance with the present invention;
DETAILED DESCRIPTION OF INVENTION
The invention deals with new design of Anti Roll Bar mounting integrated on front axle beam for increased life and rigidity of the complete Anti roll bar mounting with bush assembly. Since the number of parts has reduced as compared to conventional design, In addition to the structural integrated, the invention has led to advantages like weight reduction, cost saving in the manufacturing process for sheet metal parts etc.
Anti Roll Bar is a part that helps reduce the body roll of a vehicle while cornering or over road irregularities. It is mounted on axle with the help of mounting bracket (5) and clamps(1) as shown in Fig 1 and 2. Conventionally, as shown in Fig 1, 2, anti-roll bar mounting bracket (3, 5) on axle is complicated in design. Anti Roll bar is mounted on the axle beams with the help of clamps (1), brackets (3, 5), support C clamp plate (4) fastened with high strength mounting bolts to hold the assembly. The numbers of parts are more. These brackets & clamps experience high bending & torsional stress which leads to excessive fatigue on assembly.

Since the number of parts are more and more degree of freedom is available, there is issue of dislocation / deformation of the Anti roll bar clamp with time on the vehicle. This results in the loosening of the anti-roll bar rubber bush (2) inside the assembly and it may fall while vehicle running in dynamic condition. The rigidity of complete assembly is less, causing the failure of mounting on the vehicle in a longer run. Due to this, Anti Roll Bar (ARB) performance gets deteriorated and vehicle experience high rolling. The improvement in the conventional design is difficult due to axle beam construction and constraint of available space for clamping due to shape of axle beam which is finalized based on strength requirements. Improvement in the rigidity of conventional design will lead to heavy clamp design which will cause increase in assembly weight / cost of the structure will be high. Hence there is a need of new improved design to deal with these issues.
In improved design, as shown in Fig 3 and 4, the anti-rollbar mounting is integrated on front axle beam for increased life and rigidity of the complete Anti roll bar mounting with bush assembly (11). Integration is done by providing proper space for the Anti Roll Bar (ARB) clamp (12) with ribs from sides provided on axle itself to avoid Bush (11) slippage in Lateral direction and holes are provided on the axle for passing bolts. Two high strength bolts (9, 10) are used to mount the Anti Roll Bar (ARB) clamp (12) on axle beam. The Anti Roll Bar (ARB) rubber bush is sandwiched between clamp (12) and axle beam. The rubber bush (11) is formed as per the axle beam shape on one side and semicircular rubber extrusion towards anti roll bar clamp (12) inner surface (provided with recess) for proper locking in the assembly. This better design leads to increased rigidity of anti-roll bar (ARB) mounting with life and hence improvement in function of anti-roll bar (ARB) is achieved.
The new design assembly as shown in Fig 5,is also cost effective since the new modification of integrated holes can be incorporated during forging of axle beam and hence sheet metal parts like mounting brackets, C Channel plate, and C Reinforcement bracket can be removed from assembly bill of material.
Since the number of parts has reduced as compared to conventional design, In addition to the structural integrated, the invention has led to advantages like weight reduction, cost saving in the manufacturing process for sheet metal parts etc.

List of Reference Numerals Utilized in the Drawings
1. Anti Roll Bar mounting clamp
2. Rubber Bush -Anti Roll Bar
3. Support Bracket Anti Roll Bar Mounting
4. C-Channel Anti Roll Bar mounting
5. Rear Anti Roll Bar mounting bracket
6. Bolt Ml0x100
7. Bolt M10x20
8. Lock Nut
9. Bolt M12x165
10. Bolt M12x150
11. New Rubber Bush
12. Clamp
Although the foregoing description of the present invention has been shown and described with reference to particular embodiments and applications thereof, it has been presented for purposes of illustration by way of examples and description and is not intended to be exhaustive or to limit the invention to the particular embodiments and applications disclosed. The particular embodiments and applications were chosen and described to provide the best illustration of the principles of the invention and its practical application to thereby enable one of ordinary skill in the art to utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. All such changes, modifications, variations, and alterations should therefore be seen as being within the scope of the present invention as determined by the appended claims when interpreted in accordance with the breadth to which they are fairly, legally, and equitably entitled.

WE CLAIM:
1. An integrated anti-rollbar mount on front axle of a motor vehicle comprising of :-
at least one anti-roll bar mount rubber bush assembly;
at least one anti-roll bar clamp;
at least two high strength bolts for mounting the Anti Roll Bar (ARB) clamp on axle beam; wherein the said integration is carried out by providing proper space for the Anti Roll Bar (ARB) clamp with ribs from sides on the axle itself to avoid bush slippage in lateral direction and holes are provided on the axle for passing bolts.
2. The anti-roll bar mount according to claim 1, wherein, the said anti-roll bar (ARB) rubber bush is sandwiched between clamp and axle beam.
3. The anti-roll bar mount according to claim 1, wherein, the said rubber bush is formed as per the axle beam shape on one side and semi-circular rubber extrusion towards anti roll bar clamp inner surface and provided with recess for proper locking in the assembly.
4. The anti-roll bar mount according to claim 1, wherein, the integrated holes are incorporated during forging of axle beam.