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A Mechanism To Improve Roll Performance Ofa Suspension System

Abstract: In one aspect, the present disclosure provides a system for improving roll performance of a suspension system. The system includes a plurality of stopper mechanisms and a plurality of resilient mechanisms. The plurality of stopper mechanisms is disposed on a chassis/body of a vehicle. Each of the plurality of stopper mechanisms includes a cushion member. The plurality of resilient mechanisms is disposed on at least one axle of the vehicle. Each of the plurality of resilient mechanisms includes a resilient member. During body roll prevention, at least one of the plurality of resilient mechanisms and at least one of the plurality of stopper mechanisms comes in contact with each other to restrict the body roll. Figure 1

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Patent Information

Application #
Filing Date
31 March 2015
Publication Number
06/2017
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
ipo@knspartners.com
Parent Application
Patent Number
Legal Status
Grant Date
2023-12-18
Renewal Date

Applicants

TATA MOTORS LIMITED
Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India

Inventors

1. Noushad Naduvil Kovilakath
c/o. Tata Motors Limited, Bombay House, 24 Homi Mody Street, Hutatma Chowk, Mumbai – 400 001, Maharashtra, India

Specification

DESC:TECHNICAL FIELD
The present disclosure relates to suspension system of a vehicle. Particularly, but not exclusively, embodiments of the present disclosure disclose a system for improving the roll performance in suspension system of a vehicle without affecting ride characteristics.

BACKGROUND OF THE DISCLOSURE

One of most difficult task for vehicle dynamic engineers is to meet the vehicle handling targets without compromising the ride behaviors of the vehicle because of their contradicting nature. Roll rate is a similar characteristic of suspension. For better vehicle handling it is always required to have high roll stiffness, but increasing the suspension stiffness results to decreasing the ride quality. Anti-roll bar is a setup which is currently used in vehicle to counter the above behavior. It does the function of increasing the roll stiffness without affecting the ride rate because of its nature of getting active in during opposite wheel travel.

In light of the above discussion, there is a need for a mechanism to overcome the limitations and at the same time be economical.

OBJECTS OF THE INVENTION
One object of the present disclosure is to provide a system to increase roll stiffness without affecting vehicle ride characteristics.

Another object of the present disclosure is to provide a system that reduces the roll gradient of the chassis/body of the vehicle, during vehicle turn.

SUMMARY OF THE DISCLOSURE

In one non-limiting embodiment of the present disclosure, a system for improving roll performance of a suspension system is provided. The system includes a plurality of stopper mechanisms and a plurality of resilient mechanisms. The plurality of stopper mechanisms is disposed on a chassis/body of a vehicle. Each of the plurality of stopper mechanisms includes a cushion member. The plurality of resilient mechanisms is disposed on at least one axle of said vehicle. Each of the plurality of resilient mechanisms includes a resilient member. During body roll prevention, at least one of the plurality of resilient mechanisms and at least one of the plurality of stopper mechanisms comes in contact with each other to restrict the body roll.

The plurality of stopper mechanisms may be disposed laterally on the chassis/body of the vehicle.

The plurality of resilient mechanisms is disposed laterally on at least one axle of the vehicle.

The plurality of resilient mechanisms is disposed on the at least one axle of the vehicle in a way such that a pre-determined gap is being maintained between the plurality of stopper mechanisms and the plurality of resilient mechanisms during parallel wheel travel of the vehicle.

Each of the plurality of stopper mechanisms may further comprises a support bracket for facilitating mounting of said cushion member thereon.

Each of the plurality of resilient mechanisms further includes a support plate.

Each of the plurality of resilient mechanisms may further comprises a rubber pad mounted on the support plate.

In one embodiment, the cushion member is a bump stop.

In one embodiment, the resilient member is a leaf spring.

In another embodiment of the present disclosure, a system for improving roll performance of a suspension system is provided. The system includes a plurality of stopper mechanism and a plurality of resilient mechanisms. The plurality of stopper mechanisms is disposed on at least one axle of a vehicle, each of the plurality of stopper mechanisms includes a cushion member. The plurality of resilient mechanisms is disposed on a chassis/body of said vehicle, wherein each of the plurality of resilient mechanisms comprises a resilient member. During body roll prevention, at least one of the plurality of resilient mechanisms and at least one of said plurality of stopper mechanisms comes in contact with each other to restrict said body roll.

The plurality of stopper mechanisms may be laterally disposed on said at least one axle of said vehicle.

The resilient mechanisms may be disposed laterally on the chassis/body.

The plurality of resilient mechanisms may be disposed on the chassis/body of the vehicle in a way such that a pre-determined gap being maintained between said plurality of stopper mechanism and said plurality of resilient mechanisms during parallel wheel travel of said vehicle.

Each of the plurality of stopper mechanisms is disposed on the at least one axle of said vehicle by means of a U bolt.

The each of the plurality of resilient mechanisms further comprises a support plate.

The each of said plurality of resilient mechanisms may further comprise a rubber pad mounted on the support plate.

The cushion member may be a bump stop.

The resilient member may be a leaf spring.

BRIEF DESCRIPTION OF THE ACCOMPANYING FIGURES
The features of the present disclosure will become more fully apparent from the following description, taken in conjunction with the accompanying drawings. Understanding that these drawings depict only several embodiments in accordance with the disclosure and are therefore, not to be considered limiting scope of the invention. The disclosure will be described with additional specificity and detail through use of the accompanying drawings.

Figure 1 illustrates schematic view of a system to improve roll performance of suspension system used in a vehicle, when the vehicle is travelling in a straight line, according to an embodiment of the present disclosure.

Figure 2 illustrates schematic view of an alternate embodiment of the system of Figure 1, according to an embodiment of the present disclosure.

Figure 3 illustrates schematic view of the system of Figure 1, when the vehicle is taking a left turn according to an embodiment of the present disclosure.

Figure 4 illustrates graphical view of roll stiffness change due to the system of Figure 1.

Figure 5 illustrates graphical view of roll gradient change due to the system of Figure 1.

Figure 6 illustrates an alternate embodiment of the system of the present disclosure depicting changed locations of a plurality of stopper mechanisms and a plurality of resilient mechanisms (2).

Figure 7 illustrates another position of the system of Figure 6.

Figure 8 illustrates schematic view of the system of Figure 6, when the vehicle is taking a left turn according to 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 structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.

DESCRIPTION OF THE DISCLOSURE

Referral numerals
Referral Numerals Description
100 System to improve roll characteristics
1 Vehicle
20 Resilient Mechanism
2 Resilient member
2a First end of resilient member
2b Second end of resilient member
3 Support member/ plate
30 Stopper Mechanism
4 Stopper/ cushion member
5 Bracket/ Support Bracket
6 Chassis or body of vehicle
7 Clamp
8 Wheel hub
9 Axle
10 Rubber pad
11 U-Bolt

To overcome the limitations stated in the background, a system to increase roll stiffness of a vehicle is provided. The system offers better ride characteristics to user of the vehicle without affecting suspension characteristics by reducing roll gradient and increasing roll stiffness, when the vehicle is taking a turn. The system comprises a plurality of stopper mechanisms provisioned to the chassis/body, laterally with respect to longitudinal axis of the vehicle. The plurality of stopper mechanisms is provisioned on chassis/body of the vehicle, so that the plurality of stopper mechanisms inclines along with chassis/body during vehicle turn. In one embodiment of the present disclosure, the plurality of stopper mechanisms is positioned proximal to wheel hubs of the vehicle. A bracket is provisioned in between a plurality of cushion members and the chassis/body to place the plurality of cushion members at a distance away from the chassis/body. The system also comprises a plurality of resilient mechanisms mounted on an axle of a vehicle. The plurality of stopper mechanisms is also oriented laterally with respect to longitudinal axis of the vehicle. The plurality of resilient members of the plurality of resilient mechanisms extends laterally to contact the plurality of cushion members of the plurality of stopper mechanisms. In one embodiment of the present disclosure, the plurality of resilient members is selected from group such as but not limiting to leaf spring, spring member …etc. To mount the plurality of resilient members, a plurality of support members/ plates is provisioned on the axles. In one embodiment of the present disclosure, the plurality of support members/ plates is clamped to the axles by U-clamps. In another embodiment of the present disclosure, the shape of the at least one support member/ plate is selected from group such as but not limiting to L-shape. The plurality of support members supports the plurality of resilient members upon deflection due to contact of plurality of stoppers during inclination of chassis/body, thereby preventing roll of the vehicle. At least one rubber pad is provisioned on each of the plurality of support member, to prevent surface contact between the at least one support member and the at least one resilient member during operation.

In an event, vehicle is taking a turn the chassis/body begins to incline due to lateral acceleration associated with the turn. The corresponding stopper mechanism of the plurality of stopper mechanisms inclines with respect to axis of the vehicle. Due to this inclination, the stoppers contact the second end of resilient member. Due to the stiffness of the resilient member, further inclination of the stopper is limited and hence vehicle roll is prevented. In case, when the roll is beyond stiffness of the resilient members, the resilient members deflects and contacts the support member. The support member provides required support to the stopper, and prevents further inclination. Due to the resilient nature of resilient member, the stopper and the chassis/body is brought back to original position. Thus the system prevents roll of the vehicle without affecting ride quality of the vehicle.

In another embodiment of the present idea disclosure, the locations of the plurality of stopper mechanisms and the plurality of resilient mechanisms may be changed. More specifically, the plurality of stopper mechanisms is provisioned laterally on at least one axle of a vehicle and the plurality of resilient mechanisms is mounted on a chassis/body of the vehicle. However, this change in the arrangement of the mechanisms do not change the functions of the mechanisms.

Reference will now be made to figures which are exemplary embodiments of the present disclosure, as illustrated in the accompanying drawings. Wherever possible referral numerals will be used to refer to the same or like parts.

Referring to Figures 1 to 5, schematic view of the system (100) to improve roll performance of the vehicle (1) such as pickups, light commercial vehicles, SUVs, MUVs, military vehicles etc., according to an embodiment of the present disclosure. The present disclosure provides a system (100) to reduce roll gradient of chassis/body (6) and increase roll stiffness, without affecting suspension characteristics. The system (100) includes comprises a plurality of stopper mechanisms (30) provisioned laterally to the chassis/body (6) of the vehicle (1). The plurality of stopper mechanisms (30) is provisioned preferably at the lateral ends of the chassis/body (6). In one embodiment of the present disclosure, the plurality of stopper mechanisms (30) is provisioned proximal to wheel hubs (8). The plurality of stopper mechanisms (30) is provisioned to the chassis/body (6) to incline along with the chassis/body (6) during vehicle turn. Each of the plurality of stopper mechanisms (30) includes a cushion member/stopper (4) and a bracket/ support bracket (5).

The support bracket (5) is provisioned in between the plurality of cushion members (4) and the chassis/body (6), to displace the plurality of cushion members (5) from the chassis/body to a distance. The displaced distance of the plurality of cushion members (5) corresponds to the position and length of a plurality of resilient mechanisms (20). In one embodiment, the plurality of resilient mechanisms (2) mounted on at least one axle (9) of said vehicle (1) in a way such that a pre-determined gap being maintained between said plurality of stopper mechanisms (30) and the plurality of resilient mechanisms (20). Each of the plurality of resilient mechanisms (20) includes a resilient member (2) and a support plate/ member (3). The plurality of resilient members (2) is mounted on the axle (9) such that first end (2a) is fixed to the axle (9) and the second end (2b) is configured to contact the plurality of stoppers/ cushion members (4) [as shown in figure 2]. In one embodiment of the present disclosure, the plurality of resilient members (2) is selected from group such as but not limiting to leaf springs, spring members and the like. In another embodiment, at least one of the plurality of resilient mechanisms (20) includes only the support plate (3) that restricts the movement of the stopper mechanism (30) and thereby the chassis/body (6) of the vehicle. However, the present disclosure is not limited to the above embodiments described.

In one embodiment, the resilient member (2) has a span of about 100-200 mm. In another embodiment of the present disclosure, the stiffness of the plurality of resilient members (2) is selected to allow inclination to the chassis/body (6) to required level. To allow a permissible inclination of the chassis/body (6) for example 3 degrees, a gap of 3 mm is maintained between the plurality of stoppers (4) and plurality of resilient members (2).

To support the plurality of resilient members (2), a plurality of support members (3) are provisioned on the axle (9). The plurality of support members (3) are mounted on the axle (9) by U-clamps. The plurality of support members (3) extends up to the plurality of resilient members (4), to support upon deflection. At least one rubber pad (10) is provisioned on each of the plurality of resilient members (4) to prevent metal to metal contact between the plurality of resilient members (4) and plurality of support members (3).

In an event when the vehicle (1) is taking a turn, the chassis/body of the vehicle inclines with respect to axis of the vehicle (1). When the inclination is beyond a permissible limit, one of the plurality of stoppers/ cushion member (4) contacts second end (2a) of plurality of resilient members (2). Due to the stiffness of the plurality of resilient members (2), further inclination of the plurality of stopper/ cushion member (4) is limited and thereby, preventing roll of the vehicle (1). In case, the inclination of the plurality of stopper/ cushion member (4) is beyond the stiffness of the plurality of resilient members (2), the plurality of resilient members (2) deflects. Due to the deflection, the plurality of resilient members (2) contacts the rubber pad (10) on the plurality of support members (3). Thus, the stiffness of plurality of resilient members (2) adds into the suspension roll stiffness [shown in figures 4 and 5] thereby limiting the roll gradient of ‘on road’/’off road’ vehicles to required level of about 6-8 degrees, in one embodiment.

The stiffness of plurality of resilient members (2) is directly added to the existing roll stiffness of the vehicle. Thus, can be mathematically written as:

Total roll stiffness = suspension roll stiffness + stiffness of roll stop device

The body roll angle of the vehicle due to the mechanism (100) is mathematically written as:

Body roll angle = Vehicle roll moment / total roll stiffness.

Thus, the plurality of support members (3) provide required support to the plurality of resilient members (2), thereby preventing further inclination of the chassis/body (6) and thereby prevent roll of the vehicle (1).

Figure 4 illustrates a graphical representation of Roll Angle (in degrees) versus vehicle roll moment. Figure 5 illustrates a graphical representation of lateral acceleration (in ‘g’ level) versus roll angle (in degrees).

Referring to Figures 6 to 8, schematic view of the system (200) to improve roll performance of the vehicle (1) such as pickups, light commercial vehicles, SUVs, MUVs, military vehicles etc., according to an embodiment of the present disclosure. The present disclosure provides a system (200) to reduce roll gradient of chassis/body (6) and increase roll stiffness, without affecting suspension characteristics. The system (200) includes a plurality of stopper mechanisms (30) disposed on at least one axle (9) of the vehicle (1). The system (200) also includes a plurality of resilient mechanisms (20) disposed on said body/ chassis (6) of the vehicle (1). The plurality of resilient mechanisms (20) is provisioned preferably at the lateral ends of the chassis/body (6). In one embodiment of the present disclosure, the plurality of resilient mechanisms (20) is provisioned proximal to wheel hubs (8). The plurality of resilient mechanisms (20) is provisioned to the chassis/body (6) to incline along with the chassis/body (6) during vehicle turn. Each of the plurality of resilient mechanisms (20) includes a resilient member (2) and a support plate (3).

The support bracket (5) is provisioned in between the plurality of resilient members (2) and the chassis/body (6), to displace the plurality of resilient mechanisms (20) from the chassis/body to a distance. The displaced distance of the plurality of cushion members (5) corresponds to the position and length of a plurality of resilient mechanisms (20). In one embodiment, the plurality of resilient mechanisms (20) mounted on the chassis/ body (6) of the vehicle (1) in a way such that a pre-determined gap being maintained between said plurality of stopper mechanisms (30) and the plurality of resilient mechanisms (20). The plurality of resilient members (2) is mounted on the chassis/ body (6) such that first end (2a) is fixed to the support bracket (5) and the second end (2b) is configured to contact the plurality of stoppers/ cushion members (4). In one embodiment of the present disclosure, the plurality of resilient members (2) is selected from group such as but not limiting to leaf springs, spring members and the like. In another embodiment, at least one of the plurality of resilient mechanisms (20) includes only the support plate (3) that restricts the movement of the stopper mechanism (30) and thereby the chassis/body (6) of the vehicle. However, the present disclosure is not limited to the above embodiments described.

In one embodiment, the resilient member (2) has a span of about 100-200 mm. In another embodiment of the present disclosure, the stiffness of the plurality of resilient members (2) is selected to allow inclination to the chassis/body (6) to required level. To allow a permissible inclination of the chassis/body (6) for example 3 degrees, a gap of 3 mm is maintained between the plurality of stoppers (4) and plurality of resilient members (2).

To support the plurality of resilient members (2), a plurality of support members (3) are provisioned on the chassis/ body (6). The plurality of support members (3) are mounted on the chassis/ body (6) by support bracket (5). The plurality of support members (3) extends up to the plurality of resilient members (4), to support upon deflection. At least one rubber pad (10) is provisioned on each of the plurality of resilient members (4) to prevent metal to metal contact between the plurality of resilient members (4) and plurality of support members (3).

In an event when the vehicle (1) is taking a turn, the chassis/body of the vehicle inclines with respect to axis of the vehicle (1). When the inclination is beyond a permissible limit, one of the plurality of stoppers/ cushion member (4) contacts second end (2a) of plurality of resilient members (2). Due to the stiffness of the plurality of resilient members (2), further inclination of the plurality of stopper/ cushion member (4) is limited and thereby, preventing roll of the vehicle (1). In case, the inclination of the plurality of stopper/ cushion member (4) is beyond the stiffness of the plurality of resilient members (2), the plurality of resilient members (2) deflects. Due to the deflection, the plurality of resilient members (2) contacts the rubber pad (10) on the plurality of support members (3). Thus, the stiffness of plurality of resilient members (2) adds into the suspension roll stiffness [shown in figures 4 and 5] thereby limiting the roll gradient of ‘on road’/’off road’ vehicles to required level of about 6-8 degrees, in one embodiment.

Advantages
In one embodiment of the present disclosure, the system provides a solution to improve vehicle handling performance, without affecting the ride characteristics.

In one embodiment of the present disclosure, the system provides an effective and economical replacement to anti roll bar (sway bar).

In one embodiment of the present disclosure, the system improves the roll over stability on extreme roll over cases.

In one embodiment of the present disclosure, the system is installed at front suspension to improve under steer characteristics of vehicle.

In one embodiment of the present disclosure, the system is installed at rear suspension to improve over steer characteristics of vehicle.

In one embodiment of the present disclosure, the system is light, durable and requires less packaging space compared to anti roll bar and thus the total cost is economical.

In one embodiment, the system is configured in such a way that it engages only after certain body roll and does not engage during parallel wheel travel. Thereby prevents the wear and tear in components of the vehicle.

In one embodiment, by the selection of size of the leaf spring (vertically mounted), it is possible to make sure the contribution of roll stop mechanism towards suspension roll stiffness as 30-40 % similar to stabilizer bar.

In one embodiment, the system improves the roll over stability on extreme roll over cases.

In one embodiment, the system function is similar to stabilizer bar, but the mechanism engages only after certain body roll, whereas stabilizer bar engages from start of roll.

In one embodiment, the system is easily replaceable with existing stabilizer bars or can be used an added roll stopping device.

In one embodiment, the system is suitable for the application of dependent suspension vehicle.

In one embodiment, the system can be modified to use rubber pad instead of vertically mounted leaf spring wherever it is not possible to use.

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.

,CLAIMS:We claim:

1. A system (100) for improving roll performance of a suspension system, said system comprising:
• a plurality of stopper mechanisms (30) disposed on a chassis/body (6) of a vehicle (1), each of said plurality of stopper mechanisms (30) comprising a cushion member (4); and
• a plurality of resilient mechanisms (20) disposed on at least one axle (9) of said vehicle (1), wherein each of said plurality of resilient mechanisms (2) comprises a resilient member, and, wherein during body roll prevention, at least one of said plurality of resilient mechanisms (20) and at least one of said plurality of stopper mechanisms (30) comes in contact with each other to restrict said body roll.

2. The system (100) as claimed in claim 1, wherein said plurality of stopper mechanisms (30) is disposed laterally on said chassis/body (6) of said vehicle (1).

3. The system (100) as claimed in claim 1, wherein said plurality of resilient mechanisms (20) is disposed laterally on at least one axle (9) of said vehicle (1).

4. The system (100) as claimed in claim 1, wherein said plurality of resilient mechanisms (20) is disposed on said at least one axle (9) of said vehicle (1) in a way such that a pre-determined gap being maintained between said plurality of stopper mechanisms (30) and said plurality of resilient mechanisms (20) during parallel wheel travel of said vehicle.

5 The system (100) as claimed in claim 1, wherein said each of said plurality of stopper mechanisms (30) further comprises a support bracket (5) for facilitating mounting of said cushion member (4) thereon.

6. The system (100) as claimed in claim 1, wherein said each of said plurality of resilient mechanisms (20) further comprises a support plate (3).

7. The system (100) as claimed in claim 6, wherein said each of said plurality of resilient mechanisms (20) further comprises a rubber pad (10) mounted on said support plate (3).

8. The system (100) as claimed in claim 1, wherein said cushion member (4) is a bump stop.

9. The system (100) as claimed in claim 1, wherein said resilient member (2) is a leaf spring.

10. A system (200) for improving roll performance of a suspension system, said system comprising:
• a plurality of stopper mechanisms (30) disposed on at least one axle (9) of a vehicle (1), each of said plurality of stopper mechanisms (30) comprising a cushion member (4); and
• a plurality of resilient mechanisms (20) disposed on a chassis/body (6) of said vehicle (1), wherein each of said plurality of resilient mechanisms (20) comprises a resilient member (2), and, wherein during body roll prevention, at least one of said plurality of resilient mechanisms (20) and at least one of said plurality of stopper mechanisms (30) comes in contact with each other to restrict said body roll.

11. The system (200) as claimed in claim 10, wherein said plurality of stopper mechanisms (30) is disposed laterally on said at least one axle (9) of said vehicle (1).

12. The system (200) as claimed in claim 10, wherein said resilient mechanisms (20) is disposed laterally on said chassis/body (6).

13. The system (200) as claimed in claim 10, wherein said plurality of resilient mechanisms (20) is disposed on said chassis/body (6) of said vehicle (1) in a way such that a pre-determined gap being maintained between said plurality of stopper mechanism (30) and said plurality of resilient mechanisms (20) during parallel wheel travel of said vehicle.

14. The system (200) as claimed in claim 10, wherein said each of said plurality of stopper mechanisms (30) is disposed on said at least one axle (9) of said vehicle (1) by means of a U bolt.


15. The system (200) as claimed in claim 10, wherein said each of said plurality of resilient mechanisms (20) further comprises a support plate (3).

16. The system (200) as claimed in claim 15, wherein said each of said plurality of resilient mechanisms (20) further comprises a rubber pad (10) mounted on said support plate (3).

17. The system (200) as claimed in claim 10, wherein said cushion member (4) is a bump stop.

18. The system (200) as claimed in claim 10, wherein said resilient member is a leaf spring.

Dated this 31st day of March, 2015

Gopinath A. S.
IN/PA-1852
Of K & S Partners
Agent for the Applicant

Documents

Application Documents

# Name Date
1 1321-MUM-2015-IntimationOfGrant18-12-2023.pdf 2023-12-18
1 Form 8 [29-03-2016(online)].pdf 2016-03-29
2 Drawing [29-03-2016(online)].pdf 2016-03-29
2 1321-MUM-2015-PatentCertificate18-12-2023.pdf 2023-12-18
3 Description(Complete) [29-03-2016(online)].pdf 2016-03-29
3 1321-MUM-2015-FER_SER_REPLY [12-08-2019(online)].pdf 2019-08-12
4 FORM 5 ip30647.pdf 2018-08-11
4 1321-MUM-2015-FER.pdf 2019-02-12
5 FORM 3 ip30647.pdf 2018-08-11
5 1321-MUM-2015-Correspondence-200515.pdf 2018-08-11
6 Figs_IP30647_31 03 2015.pdf 2018-08-11
6 1321-MUM-2015-Correspondence-290116.pdf 2018-08-11
7 Draft Prov Spec_IP30647_31 03 2015.pdf 2018-08-11
7 1321-MUM-2015-Form 1-200515.pdf 2018-08-11
8 ABSTRACT1.jpg 2018-08-11
8 1321-MUM-2015-Power of Attorney-290116.pdf 2018-08-11
9 ABSTRACT1.jpg 2018-08-11
9 1321-MUM-2015-Power of Attorney-290116.pdf 2018-08-11
10 1321-MUM-2015-Form 1-200515.pdf 2018-08-11
10 Draft Prov Spec_IP30647_31 03 2015.pdf 2018-08-11
11 Figs_IP30647_31 03 2015.pdf 2018-08-11
11 1321-MUM-2015-Correspondence-290116.pdf 2018-08-11
12 FORM 3 ip30647.pdf 2018-08-11
12 1321-MUM-2015-Correspondence-200515.pdf 2018-08-11
13 FORM 5 ip30647.pdf 2018-08-11
13 1321-MUM-2015-FER.pdf 2019-02-12
14 Description(Complete) [29-03-2016(online)].pdf 2016-03-29
14 1321-MUM-2015-FER_SER_REPLY [12-08-2019(online)].pdf 2019-08-12
15 Drawing [29-03-2016(online)].pdf 2016-03-29
15 1321-MUM-2015-PatentCertificate18-12-2023.pdf 2023-12-18
16 Form 8 [29-03-2016(online)].pdf 2016-03-29
16 1321-MUM-2015-IntimationOfGrant18-12-2023.pdf 2023-12-18

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