TECHNICAL FIELD
[0001] The present subject matter described herein, relates to a twin-bracket reinforcement structure to reduce vibration produced inside a vehicle. More particularly, according to the present invention, a twin-bracket reinforcement structure acts as a damper having better damping ability, stiffness and strength.
BACKGROUND OF THE INVENTION
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[0003] Generally, brackets are provided in a vehicle to mount several components to the vehicle frame or the engine mount and to reduce the vibrations produced at the various locations inside the vehicle. Vibrations produced inside the vehicle are harmful to the structural integrity of the vehicle or may merely provide a nuisance to passengers. Therefore, much effort has been directed toward reducing vibrations in various parts of the vehicle in order to protect the vehicle and/or provide a more comfortable passenger experience.
[0004] Mainly, the structural failure of the bracket will occur if the vibrations and stresses are excessive and severe. Additionally, the most important vibration relevant excitations in a car engine can be identified as combustion force; main bearing reaction forces including mass forces damper function and flywheel whirling, modified by the front-end damper; piston side forces including secondary motion; camshaft bearing reaction forces including mass forces, opening and closing impacts and bearing impacts; valve opening and closing impacts; valve train forces caused by chain/belt movement or gear drive; gear train forces inside the transmission; drive train reaction forces and moments.

[0005] In industrial practice, brackets are affixed at various parts of the vehicle like power train of a vehicle, certain interior components of the vehicle, and/or the chassis of the vehicle for reducing vibrations.
[0006] Technical problem: The existing design and material of the bracket fails to effectively reduce the vibration produced at various sections of the vehicle. Additionally, if the mounting bracket is too stiff, it does not dampen vibration. This vibration is transferred from the mounting point to the vehicle body frame. Furthermore, a too weak bracket can deform under vibrational load which may fail to satisfy its requirement and also have adverse effect on surrounding components.
For example, referring to Figure 1, the existing battery support bracket, which is mounted on the top of the engine mount, having an inverted U-shape is very stiff and absorbs very less amount of vibrations coming from an engine mount. Due to this, all the vibrations produced near the engine mount are transferred onto the battery tray and in turn the battery. Moreover, since the battery is a lumped-overhanging mass, it intensifies the vibrations which are transferred from the inverted U-shaped bracket. The vibrations may lead to fatigue failure of battery mounting structure.
[0007] Hence, there is a need of a bracket having an appropriate design, stiffness and strength that effectively reduces the vibration produced inside various section of the vehicle.
[0008] In order to solve the technical problems as mentioned above, various brackets have been adopted by different manufactures to meet the strength, stiffness and design requirement. However, these brackets are not capable of sufficiently reducing the vibration produced at the various sections during driving condition of the vehicle.
[0009] Therefore, there is a need for a bracket which absorbs vibration and reduces vibration transfer without getting collapsed due to vibrations produced during driving condition of the vehicle.

OBJECTS OF THE DISCLOSURE
[0010] Some of the objects of the present disclosure, which at least one embodiment herein satisfy, are listed hereinbelow.
[0011] The principal object of the present invention is to provide a twin -bracket reinforcement structure to reduce vibrations produced at various sections of the vehicle.
[0012] Another object of the present invention is to provide a twin- bracket reinforcement structure with optimized strength, stiffness and design that increase vibration handling capacity of the bracket.
[0013] Another object of the present invention is to provide a plurality of rubber bushes at the joints of the plurality of legs of the first bracket and the second bracket for effectively absorbing the vibration.
[0014] Another object of the present invention is to provide a twin-bracket reinforcement structure having mounting point at the head of the first and the second bracket to join the structure to the various components of the vehicle.
[0015] These and other objects and advantages will become more apparent when reference is made to the following description and accompanying drawings.
SUMMARY OF THE INVENTION
[0016] This summary is provided to introduce concepts related to a reinforcement structure for reducing vibration transfer. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
[0017] In an embodiment, the present disclosure relates to a twin-bracket reinforcement structure with enhanced vibration absorbing capacity. The twin-bracket reinforcement structure comprises of two brackets, wherein a first bracket is placed over a second bracket in an inverted manner and they both are on the same axis. The first bracket and the second bracket are provided with plurality of

legs extending outwards. The first ends of the plurality of legs of the first bracket are connected to each other through a first head. Similarly, the first ends of the plurality of legs of the second bracket are connected to each other through a second head. Further, a plurality of flanges of both the first bracket and the second bracket are extending outwardly from a second end of the plurality of legs of the first bracket and the second bracket. The flanges of both the first and the second brackets are joined together either through various fastening means like nuts and bolts, screws, pins and rivets etc. or welding means like spot welding. In an another embodiment, first and the second brackets are joined together through fastening means and a plurality of rubber bushes is inserted inside a plurality of holes provided in the flanges of the first bracket and the second bracket which further dampens the vibrations and reduces the vibration produced inside the various sections of the vehicle.
[0018] In an aspect, the number of legs in the first bracket is equal to the number of legs in the second bracket.
[0019] In an aspect, the plurality of legs in both the first and the second bracket ranges in between 2 to 4.
[0020] In an aspect, the plurality of legs in both the first and the second brackets are placed at an angle between 90° to 180°.
[0021] In an aspect, the first bracket and the second bracket are connected to the various components of the vehicle using one or more known fastening means or using welding methods.
[0022] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example, and simply illustrates certain selected embodiments of devices, systems, and methods that are consistent with the subject matter as claimed herein, wherein:
[0024] Figure 1 illustrates a bracket reinforcement structure used in the prior art;
[0025] Figure 2 illustrates a twin-bracket reinforcement structure with four legged design according to one of the embodiments of the present subject matter;
[0026] Figure 3 illustrates a twin-bracket reinforcement structure with three legged design according to one of the embodiments of the present subject matter;
[0027] Figure 4 illustrates a twin-bracket reinforcement structure with two legged design according to one of the embodiments of the present subject matter.
[0028] Figure 5 illustrates the graph showing the comparison of engine mount vibration levels in existing and proposed designs of the reinforcement structure.
[0029] The figures depict embodiments of the present subject matter for the purposes of illustration only. A person skilled in the art will easily 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
DETAILED DESCRIPTION
[0030] The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the accompanying drawings. It should be noted that the embodiments are described herein in such details as to clearly communicate the disclosure. However, the amount of details provided herein is not intended to limit the anticipated variations of embodiments; on the

contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure as defined by the appended claims.
[0031] It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof.
[0032] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and/or "including", when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof.
[0033] It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
[0034] In addition, the descriptions of "first", "second", and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include at least one of the features, either explicitly or implicitly.

[0035] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
[0036] These and other advantages of the present subject matter would be described in greater detail with reference to the following figures. It should be noted that the description merely illustrates the principles of the present subject matter. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described herein, embody the principles of the present subject matter and are included within its scope.
[0037] . The subject matter disclosed herein relates to a twin- bracket reinforcement structure (100) with enhanced vibration damping capability. Referring to figure 2 illustrating a twin bracket reinforcement structure (100) according to one of the embodiments of the present subject matter. The twin-bracket reinforcement structure (100) comprises a first bracket (102) and a second bracket (106). The first bracket (102) and the second bracket (106) are joined together in such a manner that the first bracket (102) is placed over the second bracket (106) in an inverted manner. The first bracket (102) and the second bracket (106) lie on the same vertical axis. The first bracket (102) has a plurality of legs (102a, 102b, 102c, 102d) extending in an outward direction. The first end of the plurality of legs (102a, 102b, 102c, 102d) of the first bracket (102) are connected to each other through a first head (104). The first bracket (102) has plurality of flanges (118a, 118b, 118c, 118d) extending outwardly from the second end of each of the plurality of legs (102a, 102b, 102c, 102d). Similarly, the second bracket (106) has a plurality of legs (106a, 106b, 106c, 106d) extending in an outward direction. The second end of the plurality of legs (106a, 106b, 106c, 106d) of the second bracket (106) are connected to each other through a second

head (108). The second bracket (106) has plurality of flanges (120a, 120b, 120c, 120d) extending outwardly from the second end of each of the plurality of legs (106a, 106b, 106c, 106d).
[0038] In the preferred embodiment, the first head (104) of the first bracket (102) is used to connect the twin- bracket reinforcement structure (100) with the components of the vehicle. The connection is either through the fastening means or the welding means.
[0039] In the preferred embodiment, the second head (108) of the second bracket (106) is used to connect the twin- bracket reinforcement structure (100) with the components of the vehicle. The connection is either through the fastening means or the welding means.
[0040] In the preferred embodiment, the second end of the plurality of the legs (102a, 102b, 102c, 102d) of the first bracket (102) is provided with flanges having plurality of holes (116a, 116b, 116c, 116d) and the second end of the plurality of the legs (106a, 106b, 106c, 106d) of the second bracket (106) is provided with flanges having plurality of holes (116a, 116b, 116c, 116d) that are used to fasten the first bracket (102) together with the second bracket (106) to produce the twin-bracket reinforcement structure (100).
[0041] In the preferred embodiment, the first bracket (102) and the second
bracket (106) of the twin-bracket reinforcement structure (100) are provided with four legs.
[0042] In the preferred embodiment, the twin-bracket reinforcement structure (100) is placed in between an engine mount and the battery tray to reduce the transfer of vibration from the engine to the battery.
[0043] Referring to Figure 3 and 4, the perspective view of the twin-bracket reinforcement structure (100) having 3 legs and 2 legs are disclosed. Each leg of the twin-bracket reinforcement structure (100) are placed at an angle a with the consecutive leg. In case of the 3 legs twin-bracket reinforcement structure, the

legs are placed at an angle of 120 . In case of the 2 legs twin-bracket reinforcement structure, the legs are placed at an angle of 180°.
[0044] Referring to figure 5, the graph showing the comparison between the engine mount vibration levels in existing reinforcement structure and the twin-bracket reinforcement structure (100) according to the present invention. The graph shown in the figure 5 is a measure of mobility vs. frequency.. In the existing design of reinforcement structure, the vibration levels (dark line) are shooting above the permissive limit at the frequency range of 120-200 Hz. However, after incorporating the twin-bracket reinforcement structure, there is an improvement of up to 10.75 dB at the problematic frequency range and within the permissive limit at the frequency range of 120-200 Hz. This significant improvement has been achieved due to the reduction in strain energy at and near the locations of the reinforcement structure. Although the improvement in vibration levels shown in figure 5 is with respect to 4-legged reinforcement structure, similar improvement is also achieved with 3-legged and 2-legged reinforcement structure.
[0046] Technical advantages: The twin-bracket reinforcement structure placed above an engine mount and below the battery tray effectively reduces the vibrations produced by the engine components. In order to reduce vibration, the four legs (102a, 102b, 102c, 102d) of the first bracket (102) and the four legs (106a, 106b, 106c, 106d) of the second bracket (106) expand in an outward direction such that the top and bottom faces of the structure translate together in an vertically opposite directions. This movement provides a suspension effect that helps in absorbing the vibrations which travel vertically upwards from engine mount to battery tray. So, in this manner, the twin bracket reinforcement structure helps to damp the vibrations coming from the engine mount and hence reduces the vibration transfer onto the battery.
[0045] 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

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

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 the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

WE CLAIM

1. A twin-bracket reinforcement structure (100) for a vehicle, the twin-bracket reinforcement structure (100) comprising:
a first bracket (102) with a plurality of legs (102a, 102b, 102c, 102d) extending outwards;
a first end of the plurality of legs (102a, 102b, 102c, 102d) of the first bracket (102) is connected to each other through a first head (104);
a plurality of flanges (118a, 118b, 118c, 118d) extending outwardly from a second end of each of the plurality of legs (102a, 102b, 102c, 102d)ofthe first bracket (102);
a second bracket (106) with a plurality of legs (106a, 106b, 106c, 106d) extending outwards;
a first end of the plurality of legs (106a, 106b, 106c, 106d) of the second bracket (106) is connected to each other through a second head (108); and
a plurality of flanges (120a, 120b, 120c, 120d) extending outwardly from a second end of each of the plurality of legs (106a, 106b, 106c, 106d) of the second bracket (106);
wherein, the first bracket (102) is placed above the second bracket (106) in an inverted manner such that the flanges of the plurality of legs (102a, 102b, 102c, 102d) of the first bracket (102) are joined with the flanges of the plurality of legs (106a, 106b, 106c, 106d) of the second bracket (106).

2. The twin-bracket reinforcement structure (100) as claimed in claim 1, wherein the plurality of legs (102a, 102b, 102c, 102d) of the first bracket (102) are spaced apart from each other.
3. The twin-bracket reinforcement structure (100) as claimed in claim 1, wherein the plurality of legs (106a, 106b, 106c, 106d) of the second bracket (106) are spaced apart from each other.
4. The twin-bracket reinforcement structure (100) as claimed in claim 1, wherein the number of legs (102a, 102b, 102c, 102d) of the first bracket (102) is equivalent to the number of legs (106a, 106b, 106c, 106d) of the second bracket (106).
5. The twin-bracket reinforcement structure (100) as claimed in claim 2, wherein the flanges of the plurality of legs of the first bracket (102) and the second bracket (106) are provided with holes (116a, 116b, 116c, 116d).
6. The twin-bracket reinforcement structure (100) as claimed in claim 2, wherein the first bracket (102), through the first head (104), and the second bracket (106), through the second head (108), are connected to the body of the vehicle using one of various fastening means like nuts and bolts, screws, pins and rivets etc., or through spot welding.
7. The twin-bracket reinforcement structure (100) as claimed in claim 1, wherein the number of legs of the first bracket (102) and the number of legs of the second bracket (106) ranges in between 2 to 4.
8. The twin-bracket reinforcement structure (100) as claimed in claim 11, wherein each leg of the first bracket (102) and the second bracket (106) is

spaced at an angle (a) with the consecutive leg, wherein the angle a ranges in between 90° to 180°.
9. The twin-bracket reinforcement structure (100) as claimed in claim 1,
wherein the flanges of the first bracket (102) and the second bracket (106)
are joined together through one of various fastening means like nuts
and bolts, screws, pins and rivets etc. or spot welding.
10. The twin-bracket reinforcement structure (100) as claimed in claim 9,
wherein a plurality of rubber bushes is inserted inside holes (116a, 116b,
116c, 116d) provided in the flanges of the first bracket (102) and the
second bracket (106) and are joined together through one of the various
fastening means like nuts and bolts, screws, pins and rivets etc.