Description:TECHNICAL FIELD
[0001] The present subject matter generally relates to a swingarm. The present subject matter specifically, but not exclusively, relates to a swingarm structure.
BACKGROUND
[0002] Generally, in a vehicle, a vehicle frame assembly acts as a skeleton for the vehicle that supports the vehicle loads. A front portion of the frame assembly connects to a front wheel through one or more front suspension(s). The frame assembly extends rearward of the vehicle, where a rear wheel is connected to a swing arm structure at a rear side through one or more rear suspension(s) and a front side of the swing arm structure is connected to a lower portion of the vehicle frame assembly. The swing arm structure acts as a support member for the one or more rear suspensions and other vehicular parts. Further, an engine is mounted to the vehicle frame assembly of the vehicle. The engine is functionally connected to the rear wheel, which provides the forward motion to the vehicle.
[0003] Generally, in vehicles, a swingarm is provided to carry the engine. The swingarm is attached to the crankcase of the engine in the front, while the rear side rotatably connected to the rear wheel. The swingarm may also be configured to support the rear shock absorber forming a rear suspension unit for absorbing the shocks to the rear wheel.
[0004] Conventionally, swingarms include a portion with load bearings parts. In conventional swing arms metal arm members are welded and joined. These metal arms cause an increase in the stiffness of the swingarm which results in increasing the weight of the vehicle. However, there is a need for a swingarm to be aesthetically pleasing. The aesthetics of a swingarm increase the market attractiveness of the vehicle. Therefore, in some cases, the strength and stiffness in swingarms is compromised in order to meet design requirements of the vehicle. These requirements include shape and size of various parts such as rear wheel, and frame assembly. Such a variation in design in any portion of the swingarm warrants a change of shape and size of swingarm, and the corresponding parts connecting the changed portion of the swingarm. Swingarms are typically made of steel extrusions of geometrical shapes like circle, oval etc., which, owing to its nature of design, has restrictions in changing the strength and stiffness in local areas of the swingarm, as well as are heavier in weight, which in turn reduces the performance of the vehicle. In some conventional vehicles, the swingarm is made of steel tubes. While these steels achieve the target weight of the swingarm structure, and reduce the overall weight of the vehicle, the aesthetics of these steel tubes is extremely poor and non-attractive to users of the vehicle. Therefore, there exists a contradictory challenge of designing a versatile swing-arm which is simple, aesthetic, light weight, low cost while still being able to achieve desired stiffness and strength values. There exists a need to design a swingarm which overcomes the drawbacks of the conventional swingarms while also achieving the additional requirements of an improved swingarm.
[0005] Further limitations and disadvantages of conventional and traditional approaches will become apparent to one of skill in the art, through comparison of described systems with some aspects of the present disclosure, as set forth in the remainder of the present application and with reference to the drawings.

SUMMARY OF THE INVENTION
[0006] According to embodiments illustrated herein, the present invention provides a vehicle with a swingarm for a vehicle. The swingarm comprises a front portion, a rear portion, a set of arms, and a bridging portion. The set of arms includes a first arm and a second arm. The first arm having a first front portion, and a first rear portion. The second arm having a second front portion, and a second rear portion. The bridging portion configured to integrally connect the first arm and the second arm. The swingarm is configured to have varying cross-sections. These varying cross-sections include at least one of a first cross-section, a second cross-section, and a third cross-section.
[0007] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The details are described with reference to an embodiment of a battery pack along with the accompanying diagrams. The same numbers are used throughout the drawings to reference similar features and components.
[0009] Figure 1 exemplarily illustrates a left side perspective view of a swing arm, in accordance with an embodiment of the present subject matter.
[00010] Figure 2 exemplarily illustrates a right side perspective view of a swing arm, in accordance with an embodiment of the present subject matter.
[00011] Figure 3 exemplarily illustrates a rear end perspective view of a swing arm, in accordance with an embodiment of the present subject matter.
[00012] Figure 4 exemplarily illustrates a plan view of a swing arm, in accordance with an embodiment of the present subject matter.
[00013] Figure 5 exemplarily illustrates a right side view of a swing arm, in accordance with an embodiment of the present subject matter.
[00014] Figure 6 exemplarily illustrates a right side view of a swing arm depicting sections, in accordance with an embodiment of the present subject matter.
[00015] Figure 7 exemplarily illustrates a sectional view from section AA’ of a swing arm, in accordance with an embodiment of the present subject matter.
[00016] Figure 8 exemplarily illustrates exemplarily illustrates a sectional view from section BB’ of a swing arm, in accordance with an embodiment of the present subject matter.
[00017] Figure 9 exemplarily illustrates exemplarily illustrates a sectional view from section CC’ of a swing arm, in accordance with an embodiment of the present subject matter.
[00018] Figure 10 exemplarily illustrates exemplarily illustrates a sectional view from section DD’ of a swing arm, in accordance with an embodiment of the present subject matter.

DETAILED DESCRIPTION
[00019] Exemplary embodiments are described with reference to the accompanying drawings. Wherever convenient, the same reference numbers are used throughout the drawings to refer to the same or like parts. While examples and features of disclosed principles are described herein, modifications, adaptations, and other implementations are possible without departing from the spirit and scope of the disclosed embodiments. It is intended that the following detailed description be considered as exemplary only, with the true scope and spirit being indicated by the following claims.
[00020] An objective of the present subject matter is to provide a light weight swingarm that achieve desired stiffness and strength values. The present invention provides a swingarm, manufactured by casting light weight material and meets the essential aesthetic requirements of a user. The present invention provides a swingarm which is lighter than conventional swingarms being used in the current vehicles. In an embodiment, the proposed swing arm is 30 percent lighter than conventional swing arm. The swingarm being provided by the present invention also improves the torsional and lateral stiffness of the swingarm, improving the support for the vehicle.
[00021] As per an aspect of the present subject matter, the swingarm comprises a front portion, a rear portion, a set of arms, and a bridging portion. The set of arms includes a first arm and a second arm. The first arm having a first front portion, and a first rear portion. The second arm having a second front portion, and a second rear portion. The bridging portion configured to integrally connect the first arm and the second arm. The swingarm is configured to have varying cross-sections. These varying cross-sections include at least one of a first cross-section, a second cross-section, and a third cross-section.
[00022] As per an aspect of the present subject matter, the first cross-section being the shape of an inverted letter “Y”. The second cross-section being the shape of a letter “C”. The third cross-section being the shape of an inverter letter “U”. These varying cross-sections are essential in increasing the handling characteristics of the swingarm, and provide additional structural support to the vehicle. The varying cross-sections provide a reduction of the base wall of the swingarm, therefore reducing the material being used in the manufacturing of the swingarm. The reduction in material propagates to a reduction in weight, which in turn improves the performance of the vehicle. In an embodiment, the swingarm is manufactured by fabricating a casted swingarm. In an embodiment, the swingarm is manufactured by fabricating a casted swingarm using artificial intelligence.
[00023] As per an aspect of the present subject matter, the first front portion and the second front portion are disposed in the front portion of the swingarm. The first rear portion and the second rear portion are disposed in the rear portion of the swingarm. The swingarm is configured to have varying height across the length of the swingarm, when extending in a first direction. The first direction being a direction from the front portion of the swingarm towards the rear portion of the swingarm.
[00024] As per an aspect of the present subject matter, the set of arms extending in the first direction of the swingarm, where the first direction being a direction from the front portion of the swingarm towards the rear portion of the swingarm. As per another aspect of the present subject matter, the first front portion and the first rear portion has differing geometrical properties and are distinct from each other. As per another aspect of the present subject matter, the second front portion and the second rear portion has differing geometrical properties and are distinct from each other. In an embodiment, the geometrical property being that of length of the first front portion and the first rear portion. The geometrical properties may include but are not limited to the height, length, breadth, thickness of the portions.
[00025] As per an aspect of the present subject matter, a plurality of ribs are integrally formed on at least one of an outward side of the set of arms. In an embodiment, the plurality of ribs being on the outward side of the swingarm, such that the ribs are outwardly visible to a user. The plurality of ribs contribute to the aesthetic features of the swingarm, making it appealing to the user. The plurality of ribs also contribute to the strength and stiffness of the swingarm, making the swingarm rigid and stable.
[00026] As per an aspect of the present subject matter, the plurality of ribs comprise a first set of ribs and a second set of ribs. As per another aspect of the present subject matter, the first set of ribs are configured to connect a top surface of the set of arms and the bottom surface of the set of arms. The connection of the top surface of the set of arms with the bottom surface of the set of arms reinforces the structure of the swingarm, improving the rigidity and the sturdiness of the swingarm. In an embodiment, the first set of ribs form a shape of letter “X”, thus, improving the aesthetic value of the swingarm.
[00027] As per another aspect of the present subject matter, the second set of ribs are configured to connect the top surface of the set of arms and the bottom surface of the set of arms, such that the second set of ribs are extending rearwardly and upwardly in the first direction. The connection of the top surface of the set of arms with the bottom surface of the set of arms reinforces the structure of the swingarm, improving the rigidity and the sturdiness of the swingarm.
[00028] As per an aspect of the present subject matter, the bridging portion of the swingarm can enable mounting of a suspension assembly.
[00029] As per another aspect of the present subject matter, the swingarm is manufactured using a predetermined material, the predetermined material being can be selected from a group of or a combination of one or more metals, alloys, plastics, or other synthetic compounds. The predetermined material can be any material commonly known to be used for manufacturing of parts in the known art. In an embodiment, the swingarm is manufactured using aluminium. The use of aluminium contributes to the reduced weight of the swingarm, as well as strength and sturdiness.
[00030] In view of the above, the claimed limitations as discussed above are not routine, conventional, or well understood in the art, as the claimed limitations enable the above solutions to the existing problems in conventional technologies.
[00031] The present subject matter is described using a swingarm which is used in a vehicle, whereas the claimed subject matter can be used in any other type of application employing above-mentioned swingarm configuration, with required changes and without deviating from the scope of invention. Further, it is intended that the disclosure and examples given herein be considered as exemplary only.
[00032] The terms “an embodiment”, “embodiment”, “embodiments”, “the embodiment”, “the embodiments”, “one or more embodiments”, “some embodiments”, and “one embodiment” mean “one or more (but not all) embodiments of the invention(s)” unless expressly specified otherwise. The terms “including”, “comprising”, “having” and variations thereof mean “including but not limited to”, unless expressly specified otherwise. The terms “a”, “an” and “the” mean “one or more”, unless expressly specified otherwise.
[00033] The embodiments of the present invention will now be described in detail with reference to a battery pack along with the accompanying drawings. However, the present invention is not limited to the present embodiments. The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely illustrate principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[00034] Figure 1 exemplarily illustrates a left side perspective view of a swing arm, in accordance with an embodiment of the present subject matter. Figure 2 exemplarily illustrates a right side perspective view of a swing arm, in accordance with an embodiment of the present subject matter. Figure 3 exemplarily illustrates a rear end perspective view of a swing arm, in accordance with an embodiment of the present subject matter. Figure 4 exemplarily illustrates a plan view of a swing arm, in accordance with an embodiment of the present subject matter. For brevity, Figures 1, 2, 3, and 4 will be explained together. The swingarm (100) comprises of a set of arms (116, 112), a first arm (116) and a second arm (112). The swingarm (100) having a front portion (104) and a rear portion (114). The first arm (116) having a first front portion (106) and a first rear portion (110). The second arm (112) having a second front portion (108) and a second rear portion (118). The first arm (116) and the second arm (112) being integrally connected by a bridging portion (102). The bridging portion (102) being provided with mounting units (not shown). In an embodiment, the mounting units (not shown) enabled to mount a suspension assembly (not shown). The front end of the set of arms (116, 112) and the rear end of the set of arms (116, 112) have been provided with a set of openings (122) in a lateral direction of the swingarm (100). In an embodiment, the set of openings (122) enable the mounting of the swingarm (100) onto a two wheeled vehicle (not shown). In an embodiment, the set of openings (122) disposed on the front portion (104) enabling the mounting on to a frame assembly of a two wheeled vehicle (not shown), and the set of openings (122) disposed on the rear portion (114) enabling the mounting of a rear wheel (not shown) of a two wheeled vehicle (not shown).
[00035] The swingarm (100) having a varying height when extending in a first direction (F1), where the first direction (F1) being a direction from the front portion (104) of the swingarm (100) towards the rear portion (114) of the swingarm (100).
[00036] The first front portion (106) and the first rear portion (110) of the first arm (116) have distinct geometrical properties. The second front portion (108) and the second rear portion (118) of the second arm (112) have distinct geometrical properties. In an embodiment, the geometrical property being that of length of the first front portion (106) and the first rear portion (110), and that of length of the second front portion (108) and the second rear portion (118). The geometrical properties may include but are not limited to the height, length, breadth, thickness of the portions. In an embodiment, the length of the first rear portion (110) is more than the first front portion (106). In an embodiment, the length of the second rear portion (118) is more than the second front portion (108).
[00037] Figure 5 exemplarily illustrates a right side view of a swing arm, in accordance with an embodiment of the present subject matter. A plurality of ribs (501, 502) swingarm (100) being integrally formed in the set of arms (116, 112). The plurality of ribs (501, 502) are formed on the outward side of the set of arms (116, 112) such that the ribs are outwardly visible to a user. The plurality of ribs (501, 502) contribute to the aesthetic features of the swingarm (100), making it appealing to the user.
[00038] Figure 6 exemplarily illustrates a right side view of a swing arm depicting sections, in accordance with an embodiment of the present subject matter. The swingarm (100) having a varying cross-sections (601, 602, 603, 604) when extending from a first direction (F1). The varying cross-section includes at least one of a first cross-section (601) by sectional cut at AA’, a second cross-section (602) by sectional cut at BB’, a third cross-section (603) by sectional cut at CC’, and a fourth cross-section (604) by sectional cut at DD’.
[00039] Figure 7 exemplarily illustrates a sectional view from section AA’ of a swing arm, in accordance with an embodiment of the present subject matter. In the first direction (F1) at section AA’, the first cross-section (601) when seen in the first direction (F1), the cross-sectional area forms a shape of inverted letter “U”.
[00040] Figure 8 exemplarily illustrates exemplarily illustrates a sectional view from section BB’ of a swing arm, in accordance with an embodiment of the present subject matter. In the first direction (F1) at section BB’, the second cross-section (602) when seen in the first direction (F1), the cross-sectional area forms a shape of letter “C”.
[00041] Figure 9 exemplarily illustrates exemplarily illustrates a sectional view from section CC’ of a swing arm, in accordance with an embodiment of the present subject matter. Figure 10 exemplarily illustrates exemplarily illustrates a sectional view from section DD’ of a swing arm, in accordance with an embodiment of the present subject matter. For brevity, Figures 9 and 10 are explained together. In the first direction (F1) at section CC’ and DD’, the third cross-section (603) and fourth cross-section (604) when seen in the first direction (F1), the cross-sectional area forms a shape of an inverted letter “Y”.
[00042] The present claimed invention solves the technical problem of providing a light weight swingarm manufactured by casting light weight material and which meets the essential aesthetic requirements of a user. The present invention provides a swingarm which is approximately 30 percent lighter than conventional swingarms being used in the current vehicles. The swingarm being provided by the present invention also improves the torsional and lateral stiffness of the swingarm, improving the support for the vehicle. . The swingarm is configured to have varying cross-sections. The varying cross-sections provide a reduction of the base wall of the swingarm, therefore reducing the material being used in the manufacturing of the swingarm. The reduction in material propagates to a reduction in weight, which in turn improves the performance of the vehicle.
[00043] In the present invention, the set of arms have a plurality of ribs that are integrally formed on at least one of an outward side of the set of arms. The plurality of ribs being on the outward side of the swingarm, such that the ribs are outwardly visible to a user contribute to the aesthetic features of the swingarm, making it appealing to the user. The plurality of ribs also contribute to the strength and stiffness of the swingarm, making the swingarm rigid and stable. The plurality of ribs connect a top surface of the set of arms and the bottom surface of the set of arms. The connection of the top surface of the set of arms with the bottom surface of the set of arms reinforces the structure of the swingarm, improving the rigidity and the sturdiness of the swingarm. As per an embodiment, where the swingarm is manufactured using aluminium, the use of aluminium contributes to the reduced weight of the swingarm, as well as strength and sturdiness.
[00044] In light of the above mentioned advantages and the technical advancements provided by the disclosed method and system, the claimed steps as discussed above are not routine, conventional, or well understood in the art, as the claimed steps enable the following solutions to the existing problems in conventional technologies. Further, the claimed steps clearly bring an improvement in the functioning of the configuration itself as the claimed steps provide a technical solution to a technical problem.
[00045] Finally, the language used in the specification has been principally selected for readability and instructional purposes, and it may not have been selected to delineate or circumscribe the inventive subject matter and is therefore intended that the scope of the invention be limited not by this detailed description, but rather by any claims that issue on an application based here on. Accordingly, the embodiments of the present invention are intended to be illustrative, but not limiting, of the scope of the invention, which is set forth in the following claims.
[00046] 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.
[00047] While the present disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made, and equivalents may be substituted without departing from the scope of the present disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from its scope. Therefore, it is intended that the present disclosure not be limited to the particular embodiment disclosed, but that the present disclosure will include all embodiments falling within the scope of the appended claims.

 
Reference Numerals:

100 – Swingarm
102 – Bridging portion
104 – Front portion
106 – first front portion
108 – second front portion
110 – first rear portion
112 – second arm
114 – rear portion
116 – first arm
118 – second rear portion
122 – set of openings
T1 – top surface
B1 – bottom surface
F1 – first direction
501 – first set of ribs
502 – second set of ribs
601 – first cross-section
602 – second cross-section
603 – third cross-section
604 – fourth cross-section
AA’ – First sectional cut
BB’ – second sectional cut
CC’ – third sectional cut
DD’ – fourth sectional cut
, Claims:We/I Claim:
1. A swingarm (100) for a vehicle, said swingarm (100) comprising:
a front portion (104);
a rear portion (114);
a set of arms (116, 112), said set of arms (116, 112) includes:
a first arm (116),
wherein said first arm (116) having a first front portion (106) and a first rear portion (110);
a second arm (112),
wherein said second arm having a second front portion (108) and a second rear portion (118),
a bridging portion (102),
wherein said first arm (116) and said second arm being integrally connected by said bridging portion,
wherein said swingarm (100) being configured to have varying cross-sections, said varying cross sections includes at least one of a first cross-section, a second cross-section, and a third cross-section.

2. The swingarm (100) as claimed in claim 1, wherein said first front portion (106) and said second front portion being disposed in said front portion (104) of said swingarm (100), and wherein said first rear portion and said second rear portion being disposed in said rear portion (114) of said swingarm (100).

3. The swingarm (100) as claimed in claim 1, wherein said swingarm (100) being configured to have varying height when extending in a first direction.

4. The swingarm (100) as claimed in claim 1, wherein said first cross-section being in a shape of an inverted letter “Y”.

5. The swingarm (100) as claimed in claim 1, wherein said second cross-section being in a shape of letter “C”.

6. The swingarm (100) as claimed in claim 1, wherein said third cross-section being in a shape of an inverted letter “U”.

7. The swingarm (100) as claimed in claim 1, wherein said set of arms (116, 112) extending in a first direction..

8. The swingarm (100) as claimed in claim 1,
wherein geometric parameters of said first front portion (106) being distinct from said first rear portion, and
wherein geometric parameters of second front portion being distinct from said second rear portion.

9. The swingarm (100) as claimed in claim 8, wherein said geometric parameters being at least that of length.

10. The swingarm (100) as claimed in claim 1,
wherein a plurality of ribs (501, 502) being integrally formed on at least one of an outward side of said set of arms (116, 112).

11. The swingarm (100) as claimed in claim 10, wherein said plurality of ribs (501, 502) comprising of a first set of ribs (501) and a second set of ribs (502).

12. The swingarm (100) as claimed in claim 11,
wherein said first set of ribs (501) integrally connecting a top surface (T1) of said set of arms (116, 112) and a bottom surface (B1) of said set of arms (116, 112).

13. The swingarm (100) as claimed in claim 12, wherein said first set (501) of ribs forms a shape of letter “X”.

14. The swingarm (100) as claimed in claim 11, wherein said second set (502) of ribs disposed on an outward side of said set of arms (116, 112) extending rearwardly and upwardly in said first direction , integrally connecting said top surface (T1) of said set of arms (116, 112) and said bottom surface (B1) of said set of arms (116, 112).

15. The swingarm (100) as claimed in claim 1, wherein said intermediate bridging portion being configured to enable mounting of a suspension assembly.

16. The swingarm (100) as claimed in claim 1, wherein said swingarm (100) being made of a predetermined material, said material being selected from a group consisting of metals, alloys, or synthetic compounds.

17. The swingarm (100) as claimed in claim 1, wherein end of said front portion (104) and end of said rear portion (114) being configured with a set of openings (122) in a lateral direction of the swingarm (100).