Description:FORM 2

THE PATENTS ACT, 1970
(39 OF 1970)
&
THE PATENTS RULES, 2003

COMPLETE SPECIFICATION
(See Section 10 and Rule 13)

A SUSPENSION ASSEMBLY OF A VEHICLE AND AN AXLE ASSEMBLY THEREOF

APPLICANT:

TVS MOTOR COMPANY LIMITED, (an Indian Company)

at: “Chaitanya”, No. 12, Khader Nawaz Khan Road, Nungambakkam, Chennai – 600034, Tamil Nadu, India.

The following specification particularly describes the invention and the manner in which it is to be performed.

TECHNICAL FIELD
[0001] The present invention relates to an axle assembly of a vehicle and more particularly but not exclusively relates to an axle assembly of a suspension assembly of a vehicle.
BACKGROUND
[0002] In conventional rear suspension systems, leaf springs or coil springs and trailing arms are used for supporting relatively low-capacity loads. To overcome this low-capacity load-bearing of the conventional suspension systems there is a need to integrate a suspension assembly into the rear suspension configuration while moving away from the conventional use of coil springs and trailing arms. The suspension housing assembly should incorporate a robust design with no requirement for additional mounting arrangements. Additionally, for rear-wheel drive, the vehicle has to incorporate leaf springs due to which an axle of the wheels has to be bent or partly offset, giving space to accommodate one or more components of the vehicle (for example a powertrain or differential or gearbox of the vehicle) between the wheels. The wheel axle is a cross member which may be a bent shaft member connecting the wheels of the vehicle and the leaf springs are members of the suspension assembly which helps the vehicle to bear more load. This is essential in cases of cargo vehicles.
[0003] Conventionally, suspension assemblies which are used in cargo vehicles, use a wheel axle which has a curved profile. This curved profile is partly offset or bent towards the rear of the vehicle and ensures the mounting of the powertrain of the vehicle between the wheels. However, this curved profile of the wheel axle proves to be a challenge in manufacturing because the shaft member has to be bent from a middle section to give it a curved profile, thereby it becomes a challenge to maintain an optimum wheel alignment. Furthermore, the curved profile in the shaft member requires it to be more in length to accommodate the curved profile. Also, the bending of the shaft member gives rise to stress points near the curved section. These stress points are the major points where the loading stress, bending stress, torsional stress, and other similar kinds of stresses are stored while manufacturing and during the mounting of the wheels onto the wheel axle. This may fail the wheel axle and may result in malfunctioning of the suspension assembly thus also affecting the vehicle's functioning.
[0004] Furthermore, the suspension assemblies require multiple and separate mountings to accommodate components such as shock absorbers, dampers, in addition to the mountings for wheels etc. This increases the part count, weight of the vehicle, fuel consumption and complexity in the suspension assemblies while resulting in increased tack time and time required for maintenance.
[0005] Therefore, there is a need for a suspension assembly which is simple in configuration and capable of solving all the above-mentioned problems.

SUMMARY OF THE INVENTION
[0006] Present subject matter discloses an axle assembly comprising a shaft member, a plurality of mounting portions and one or more link portions. The shaft member extends in a vehicle width direction. The shaft member is configured to connect one or more rotating members of the vehicle. The plurality of mounting portions is connected to the shaft member. Each portion of the plurality of mounting portions is configured to mount the one or more rotating members. The one or more link portions are integrated with the shaft member. The one or more link portions along with the plurality of mounting portions are configured to mount a suspension assembly of the vehicle, wherein the suspension assembly comprises one or more leaf suspensions.
[0007] Further, the present subject matter relates to a suspension assembly of a vehicle. The suspension assembly comprises a plurality of suspension members and one or more leaf suspensions . The plurality of suspension members is connected to one or more portions of the vehicle and the plurality of suspension members is mounted on an axle assembly. The one or more leaf suspensions are connected to the one or more portions of the vehicle. The one or more leaf suspensions are mounted on the axle assembly. The axle assembly comprises a shaft member, a plurality of mounting portions and one or more link portions. The shaft member is configured in a straight profile and extends in a vehicle width direction. The shaft member is configured to connect one or more rotating members of the vehicle. The plurality of mounting portions is connected to the shaft member. The plurality of mounting portions is configured to be connected to the one or more leaf suspensions. The one or more link portions are integrated with the shaft member. The one or more link portions along with the plurality of mounting portions are configured to be connected to the plurality of suspension members.
[0008] The present subject matter also pertains to a vehicle. The vehicle comprises one or more rotating members, a frame, an axle assembly and a suspension assembly. The one or more rotating members enable a movement of the vehicle. The frame provides skeletal support to the vehicle. The comprises a shaft member configured in a straight profile and extending in a vehicle width direction. The shaft member is configured to connect the one or more rotating members. The suspension assembly is configured to support the frame. The suspension assembly comprises a plurality of suspension members and one or more leaf suspensions. The plurality of suspension members are connected to the frame of the vehicle and the plurality of suspension members are mounted on the axle assembly. The one or more leaf suspensions are connected to the frame of the vehicle and the one or more leaf suspensions are mounted on the axle assembly. The axle assembly further comprises a plurality of mounting portions and the one or more link portions. The plurality of mounting portions are connected to the shaft member and the plurality of mounting portions are connected to the one or more leaf suspensions. The one or more link portions are integrated with the shaft member and the one or more link portions being configured to be connected to the plurality of suspension members. .

BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The proposed invention is described with reference to an exemplary embodiment of a mounting member of an engine assembly. The same reference numerals are used throughout the drawings to reference similar features and components. Description of certain details and implementations follow, including a description below, as well as a discussion of other potential embodiments described below, as well as a discussion of other potential embodiments or implementations of the inventive concepts provided below, followed by a more detailed description with reference to the drawings.
[0010] Figure 1: illustrates a top perspective of an axle assembly as per one embodiment of the present disclosure.
[0011] Figure 2: illustrates a top-perspective view of the axle assembly along with an exploded view of a plurality of mounting portions as per another embodiment of the present disclosure.
[0012] Figure 3: illustrates a top view of the axle assembly as per another embodiment of the present disclosure.
[0013] Figure 4: illustrates a rear-top perspective view of a suspension assembly as per another embodiment of the present disclosure.
[0014] Figure 5: illustrates a perspective view of one or more securing members as per another embodiment of the present disclosure.
[0015] Figure 6: illustrates a front-top perspective view of the suspension assembly as per another embodiment of the present disclosure.
[0016] Figure 7: illustrates a side view of the suspension assembly as per another embodiment of the present disclosure.
[0017] Figure 8: illustrates top view of the suspension and axle assembly as per another embodiment of the present disclosure.
[0018] Figure 9: illustrates a front-top perspective view of a suspension assembly as per another embodiment of the present disclosure.
[0019] Figure 10: illustrates a top perspective view of the one or more securing member with a protrusion as per another embodiment of the present disclosure.
[0020] Figure 11: illustrates a rear-top perspective view of the suspension assembly with one or more rotating members and brake assemblies of a vehicle as per another embodiment of the present disclosure.
[0021] Figure 12: illustrates a rear-top perspective view of the suspension assembly and an exploded view of a brake unit and one or more rotating members as per another embodiment of the present disclosure.
[0022] Figure 13: illustrates a side view of a vehicle as per another embodiment of the present disclosure.
DETAILED DESCRIPTION
[0023] While the present invention has been shown and described with reference to the foregoing preferred embodiments, it will be apparent to those skilled in the art that changes in form, connection, and detail may be made therein without departing from the spirit and scope of the invention.
[0024] This written description uses examples to provide details on the disclosure, including the best mode, and also to enable any person skilled in the art to practice the disclosure, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the disclosure is defined by the claims and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
[0025] It is to be understood that the aspects of the embodiments are not necessarily limited to the features described herein. Many modifications and variations of the present subject matter are possible in light of the above disclosure.
[0026] In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. One skilled in the relevant art will recognize, however, that the techniques described herein can be practised without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring certain aspects.
[0027] Various features and embodiments of the present invention here will be discernible from the following further description thereof, set out hereunder. Further “front” and “rear”, and “left” and “right” referred to in the ensuing description of the illustrated embodiment refer to front and rear, and left and right directions as seen from a rear portion of the vehicle and looking forward. However, it is contemplated that the disclosure in the present invention may be applied to any vehicle without defeating the scope of the present subject matter. The detailed explanation of the constitution of parts other than the present invention which constitutes an essential part has been omitted at suitable places. In order to address the one or more of the above-mentioned problems, the present invention provides a suspension assembly of a vehicle having an axle assembly.
[0028] As per one embodiment of the present invention, an axle assembly of a vehicle is provided. In one embodiment of the present invention the vehicle may include a three-wheeled vehicle, a four-wheeled vehicle and a multi-wheeled vehicle etc. The axle assembly comprises a shaft member, a plurality of mounting portions and one or more link portions. The shaft member extends in a vehicle width direction while connecting one or more rotating members of the vehicle. In one exemplary embodiment the shaft member has a straight profile. In another exemplary embodiment, the shaft member has a bent profile. In an embodiment the shaft member may include but not limited to a solid shaft, a hollow shaft or any combination the two. The plurality of mounting portions is connected to the shaft member and each portion of the plurality of mounting portions is configured to mount the one or more rotating members of the vehicle. In an embodiment of the present invention, the plurality of mounting portions comprises a left mounting portion and a right mounting portion. In one embodiment, the one or more link portion comprises a left link portion and a right link portion. The one or more link portions are integrated with the shaft member from both sides and the one or more link portions along with the plurality of mounting portions are configured to mount a suspension assembly of the vehicle. The suspension assembly comprises one or more leaf suspensions.
[0029] As per another embodiment of the present invention, the axle assembly is configured to provide a receiving space. The receiving space is configured to receive one or more components of the vehicle. In one embodiment of the present the one or more components of the vehicle may be a powertrain of the vehicle, where powertrain is configured to supply torque to the one or more rotating members of the vehicle, thereby moving the vehicle.
[0030] As per another embodiment of the present invention, the one or more link portions are configured to mount one or more suspension members of the suspension assembly. In an embodiment, the one or more suspension members comprise a left suspension member and a right suspension, where the left link portion is configured to mount the left suspension member and the right link portion (303R) is configured to mount the right suspension member.
[0031] As per another embodiment of the present invention, each portion of the plurality of mounting portions comprises a suspension mounting member. In an embodiment of the present the suspension mounting facilitates a single portion mounting for various components such as suspensions, wheels and dampers etc. The suspension mounting member is configured to receive a plurality of connecting members via a plurality of openings.
[0032] As per another embodiment of the present invention, each portion of the plurality of mounting portions comprises an axle mounting. The axle mounting comprises an opening. The opening is configured to receive a driveshaft of the vehicle. The axle mounting is configured to mount a brake unit of the vehicle.
[0033] As per another embodiment of the present invention, the one or more axle mounting portions comprise one or more lateral axle brackets. The one or more lateral axle brackets are configured to receive a driveshaft of the vehicle via a bracket opening. In an embodiment of the present invention, the one or more lateral axle brackets provide structure integrity to the one or more axle mounting portions by reinforcing the mounting on the axle assembly.
[0034] As per another embodiment of the present invention, the shaft member comprises a bend portion. The bend portion comprising a plurality of bends. The plurality of bends is configured to accommodate one or more components of the vehicle via a receiving space.
[0035] As per another embodiment of the present invention, the shaft member is configured to have a straight profile comprises a shaft axis (X-X’). The shaft axis (X-X’) is a center line running across a length (L) of the shaft member. The shaft member is configured to be offset at a distance (D) from a mounting axis (A-A’). The mounting axis (A-A’) is a center line running through the plurality of mounting portions.
[0036] As per another embodiment of the present invention, a suspension assembly of a vehicle is provided. The suspension assembly comprises a plurality of suspension members and one or more leaf suspensions. In an embodiment, of the present invention the plurality of suspension may include but not limited to coil spring suspension, hydraulic suspension, electromagnetic suspension etc. In an embodiment of the present invention, the one or more leaf suspensions comprise a left leaf suspension and a right leaf suspension. The plurality of suspension members is connected to one or more portions of the vehicle and the plurality of suspension members is mounted on an axle assembly. The one or more leaf suspensions are connected to the one or more portions of the vehicle. The one or more leaf suspensions are mounted on the axle assembly. The axle assembly comprises a shaft member a plurality of mounting portions and one or more link portions. The shaft member is configured in a straight profile and extending in a vehicle width direction. The shaft member is configured to connect one or more rotating members. The plurality of mounting portions is connected to the shaft member. Further, the plurality of mounting portions is configured to be connected to the one or more leaf suspensions. The one or more link portions are integrated with the shaft member and the one or more link portions are configured to be connected to the plurality of suspension members.
[0037] As per another embodiment of the present invention, the one or more portions of the vehicle includes a frame of the vehicle. The one or more leaf suspension being configured to be mounted on a suspension mounting of the plurality of mounting portions via the one or more securing member. The one or more leaf suspensions being configured to be connected to the frame via a plurality of connecting portions.
[0038] As per another embodiment of the present invention, the one or more leaf suspensions comprises one or more braces. The one or more braces are configured to secure the structure of the one or more leaf suspensions.
[0039] As per another embodiment of the present invention, the one or more securing members are configured to mount one or more dampers. In an embodiment of the present invention, the one or more dampers may include a left damper and a right damper. In an embodiment of the present invention, the one or more dampers may include a left damper and a right damper. The one or more dampers are configured to support a frame of the vehicle, when vehicle is in a loaded configuration. In an embodiment, the loaded condition of the vehicle is indicative of the load carried by the vehicle, the load may be due to passengers or cargo. The one or more leaf suspensions and the one or more securing members are mounted in a sandwich configuration on the plurality of mounting portions.
[0040] As per another embodiment of the present invention, the one or more securing member comprises a protrusion. In this embodiment, the one or more dampers are mounted on the underside of the frame of the vehicle and upon an excessive load, the one or more dampers interfaces with protrusion attached to the one or more securing member. This helps in avoiding interference and wear and tear between the frame and the suspension assembly.
[0041] As per another embodiment of the present invention, a vehicle (100) is provided. The vehicle comprises one or more rotating members, a frame, a suspension assembly and an axle assembly. The one or more rotating members enable a movement of the vehicle. The frame is configured to provide skeletal support to the vehicle. The axle assembly comprises a shaft member. The shaft member extends in a vehicle width direction. In one exemplary embodiment, the shaft member is configured in a straight profile and connects the one or more rotating members. The suspension assembly is configured to support the frame. The suspension assembly comprises a plurality of suspension members, one or more leaf suspensions. The plurality of suspension members is connected to the frame of the vehicle and the plurality of suspension members is mounted on the axle assembly. The one or more leaf suspensions are connected to the frame of the vehicle and the one or more leaf suspensions are mounted on the axle assembly. The axle assembly comprises a plurality of mounting portions and one or more link portions. The plurality of mounting portions is connected to the shaft member and the plurality of mounting portions is configured to be connected to the one or more leaf suspensions. The one or more link portions are integrated with the shaft member and the one or more link portions are configured to be connected to the plurality of suspension members.
[0042] As per another embodiment of the present invention, each portion of the plurality of mounting portions comprises an axle mounting, the axle mounting is configured to mount a brake unit of the vehicle. The brake unit is configured to be rotatably mounted on a driveshaft of the vehicle.
[0043] As per another embodiment of the present invention, the axle assembly comprises an axle mounting. The axle mounting comprises an opening, the opening is configured to receive a driveshaft of the vehicle. The driveshaft is configured to be connected to a drum of the vehicle. The drum is configured to mount the one or more rotating members. The drum is configured to receive one or more brake members of the brake unit. In an embodiment, the one or more brake members may include but not limited to one or more brake pads, a disc brake, a pressure brake unit etc. The one or more brake members are configured to apply friction on the inner surface of the drum thereby stopping the movement of the vehicle.
[0044] The present subject matter is further described with reference to the accompanying figures. It should be noted that the description and figures merely illustrate the principles of the present subject matter. Various configurations 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.
[0045] The foregoing disclosure is not intended to limit the present disclosure to the precise forms of particular fields of use disclosed. As such, it is contemplated that various alternate embodiments and/or modifications to the present disclosure, whether explicitly described or implied herein, are possible in light of the disclosure. Having thus described embodiments of the present disclosure, a person of ordinary skill in the art will recognize that changes may be made in form and detail without departing from the scope of the present disclosure.
[0046] In the foregoing specification, the disclosure has been described with reference to specific embodiments disclosed herein can be modified or otherwise implemented in various other ways without departing from the spirit and scope of the disclosure. Accordingly, this description is to be considered illustrative and is for the purpose of teaching those skilled in the art the manner of making and using various embodiments of the disclosure. It is to be understood that the forms of the disclosure herein shown and described are to be taken as representative embodiments. Equivalent elements, materials processed or steps may be substituted for those representatively illustrated and described herein. Moreover, certain features of the disclosure may be utilized independently of the use of other features, all as would be apparent to one skilled in the art after having the benefit of this description of the disclosure. Expressions such as “including”, “comprising”, “incorporating”, “consisting of”, “have”, and “is”, used to describe and claim the present disclosure are intended to be construed in a non-exclusive manner, namely allowing for items, components, or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural.
[0047] Further, various embodiments disclosed herein are to be taken in the illustrative and explanatory sense, and would in no way be construed as limiting the present disclosure. All joinder references (e.g., attached, affixed, coupled, connected, etc.) are only used to aid the reader’s understanding of the present invention, and may not create limitations, particularly as to the position orientation, or use of the system and/or methods disclosed herein. Therefore, joinder references, if any, are to be construed broadly. Moreover, such joinder references do not necessarily infer that two elements are directly connected to each other.
[0048] Additionally, all numerical terms, such as, but not limited to, “first”, “second”, “primary”, “secondary”, “main” or any other ordinary and/or numerical terms, should also be taken as identifiers, to assist the reader’s understanding of the various elements, embodiments, variations and/or modifications of the present disclosure, and may not create any limitations, particularly as to the order, or preference, of any element, embodiment, variation, and/or modification relative to, or over, another element, embodiment, variation and/or modification.
[0049] It will also be appreciated that one or more of the elements depicted in the drawings/ figures can also be implemented in a more separated or integrated manner, or even removed, or rendered as inoperable in certain cases, as is useful in accordance with a particular application. The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. However, the disclosed invention is not limited to the present embodiments.
[0050] Figures 1-3 are taken together for the description, where Figure 1: illustrates a top perspective of an axle assembly (300) as per one embodiment of the present disclosure. Figure 2: illustrates a top-perspective view of the axle assembly (300) along with an exploded view of a plurality of mounting portions as per another embodiment of the present disclosure. Figure 3: illustrates a top view of the axle assembly (300) as per another embodiment of the present disclosure.
[0051] As shown in Figure 1 and 2, an axle assembly (300) of a vehicle (100) (shown in Figure 13) is provided. The axle assembly (300) comprises a shaft member (302), a plurality of mounting portions (301L, 301R) and one or more link portions (303L, 303R). In this particular exemplary embodiment, the shaft member (302) is configured in a straight profile and extends in a vehicle width direction. The straight shaft member (302) in this embodiment, can have a cross section of various types including but not limited to circular, oval, square, rectangular or other known cross sectional profiles. The shaft member (302) is configured to connect the one or more rotating members (101) (shown in Figures 10-13). The straight configuration of the shaft member (302) enables a proper alignment of the axle assembly while mounting one or more rotating members (101) of the vehicle (100).
In an embodiment, the shaft member (302) may include but not be limited to a solid shaft, a hollow shaft or any combination of the two. The plurality of mounting portions (301L, 301R) is connected to the shaft member (302) and each portion of the plurality of mounting portions (301L, 301R) is configured to mount the one or more rotating members (101) of the vehicle (100). In an embodiment of the present invention, the plurality of mounting portions (301L, 301R) comprises a left mounting portion (301L) and a right mounting portion (301R). Each mounting portion (301L, 301R) further comprises a vibration-dampening material positioned between the mounting portion and the one or more rotating members (101), thereby reducing noise and enhancing ride comfort.
[0052] In one embodiment, the one or more link portion (303L, 303R) comprises a left link portion (303L) and a right link portion (303R). The one or more link portions (303L, 303R) are integrated with the shaft member (302) from both sides and the one or more link portions (303L, 303R) along with the plurality of mounting portions (301L, 301R) are configured to mount a suspension assembly (200, as shown in figure 4 - 12) of the vehicle (100), wherein the suspension assembly (200) comprises one or more leaf suspensions (203R, 203L; shown in Figure 4).
[0053] The one or more link portions (303L, 303R) are configured to mount one or more suspension members (201L, 201R) of the suspension assembly (200). In an embodiment of the present invention, the one or more suspension members (201L, 201R) comprise a left suspension member (201L) and a right suspension (201R), where the left link portion (303L) is configured to mount the left suspension member (201) and the right link portion (303R) is configured to mount the right suspension member (201R). In one embodiment, the one or more suspension members (201L, 201R) can be telescopic dampeners configured to absorb and dampen shocks and vibrations while the vehicle (100) travels on bad roads, potholes etc. The telescopic dampeners can be hydraulic, pneumatic or other conventionally known types of suspension members. In another embodiment, the suspension members (201L, 201R) can also be coil-spring shockers.
[0054] Each portion of the plurality of mounting portions (301L, 301R) comprises a suspension mounting member (304). The suspension mounting member (304) is configured to receive a plurality of connecting members (310) via a plurality of openings (305) on the one or more securing member (202). Each portion of the plurality of mounting portions (301L, 301R) comprises an axle mounting (306). The axle mounting (306) comprises an opening (306O). The opening (306O) is configured to receive a driveshaft of the vehicle (100). The axle mounting (306) is configured to mount a brake unit (104) of the vehicle (100).
[0055] The one or more axle mounting portions (301L, 301R) comprise one or more lateral axle brackets (307, 308). The one or more lateral axle brackets (307, 308) are configured to receive a driveshaft of the vehicle (100) via a bracket opening (308O). In an embodiment of the present invention, the one or more lateral axle brackets (307, 308) provide structure integrity to the one or more axle mounting portions (301L, 301R) by reinforcing the mounting on the axle assembly (300).
[0056] As shown in Figure 3, the axle assembly (300) is configured to provide the receiving space (300S). The receiving space (300S) is configured to receive one or more components of the vehicle (100, as shown in Figure 13). In one embodiment of the present the one or more components of the vehicle may be a powertrain of the vehicle (100), where powertrain is configured to supply torque to the one or more rotating members of the vehicle (100), thereby moving the vehicle (100). The shaft member (302) comprises a shaft axis (X-X’). The shaft axis (X-X’) is a center line running across a length (L) of the shaft member (302). The shaft member (302) is configured to be offset at a distance (D) from a mounting axis (A-A’). The mounting axis (A-A’) is a center line running through the plurality of mounting portions (301L, 301R). The distance (D) and length (L) are configured to vary based on the configuration and characteristics of the vehicle (100).
[0057] Figures 4 – 8 and Figures 11-12 are taken together for description. Figure 4: illustrates a rear-top perspective view of a suspension assembly as per another embodiment of the present disclosure. Figure 5: illustrates a top-perspective view of one or more securing members as per another embodiment of the present disclosure. Figure 6: illustrates a front-top perspective view of the suspension assembly as per another embodiment of the present disclosure. Figure 7: illustrates a side view of the suspension assembly as per another embodiment of the present disclosure. Figure 8: illustrates top view of the suspension assembly as per another embodiment of the present disclosure. Figure 11: illustrates a rear-top perspective view of the suspension assembly with one or more rotating members of a vehicle as per another embodiment of the present disclosure. Figure 12: illustrates a rear-top perspective view of the suspension assembly and an exploded view of a brake unit as per another embodiment of the present disclosure.
As shown in Figure 4- 8, 11– 12, a suspension assembly (200) of a vehicle (100) is provided. The suspension assembly (200) comprises a plurality of suspension members (201L, 201R) and one or more leaf suspensions (203L, 203R). In an embodiment of the present invention, the one or more leaf suspensions comprise a left leaf suspension (203L) and a right leaf suspension (203R). The plurality of suspension members (201L, 201R) is connected to one or more portions (105) of the vehicle (100) and the plurality of suspension members (201L, 201R) is mounted on an axle assembly (300). The one or more leaf suspensions (203L, 203R) are connected to the one or more portions (105) of the vehicle (100). The one or more leaf suspensions (203L, 203R) are mounted on the axle assembly (300). The axle assembly (300) comprises a shaft member (302), a plurality of mounting portions (301L, 301R) and one or more link portions (303L, 303R). In one of the embodiments of the present disclosure, the shaft member (302) comprises a straight profile and extending in a vehicle width direction. The plurality of mounting portions (301L, 301R) is connected to the shaft member (302). The shaft member (302) further comprises a corrosion-resistant coating, enhancing the longevity and durability of the axle assembly under various environmental conditions.
[0058] Further, the plurality of mounting portions (301L, 301R) is configured to be connected to the one or more leaf suspensions (203L, 203R). The one or more link portions (303L, 303R) are integrated with the shaft member (302) and the one or more link portions (303L, 303R) are configured to be connected to the plurality of suspension members (201L, 201R). The one or more link portions (303L, 303R) are adjustable, allowing for fine-tuning of the vehicle's suspension characteristics to accommodate different driving conditions or preferences.
[0059] As per another embodiment of the present invention, the one or more portions (105, not shown) of the vehicle (100, as shown in Figure 13) includes a frame of the vehicle (100). The one or more leaf suspension (203L, 203R) being configured to be mounted on a suspension mounting (304) of the plurality of mounting portions (301L, 301R) via the one or more securing member (202). The one or more leaf suspensions (203L, 203R) being configured to be connected to the one or more portions (105) of the vehicle, in this embodiment, the frame (105) via a plurality of connecting portions (204, 205). The one or more leaf suspensions (203R, 203L) comprise plurality of metal sheets of predefined lengths and breadths stacked together in a bow-configuration. The predefined lengths can be designed as per vehicular configuration and load requirements. The one or more leaf suspensions (203R, 203L) are aligned along the longitudinal length of the vehicle (100) and the front and the rear end of the stack of the one or more leaf suspension (203R, 203L) is connected to the suspended mass, in this case the frame (105) of the vehicle (100). The bottom most end of the bow-shaped configuration is connected to the suspension mountings (304) of the one or more mounting portions (301R, 301L) of the axle assembly (300). A lower surface of the bottom most end of the one or more leaf suspension (203R, 203L) interfaces with the suspension (304) whereas an upper surface of the one or more suspension mounting (203R. 203L) interfaces with the one or more securing members (202). The suspension mounting (304) comprises one or more holes (304H) which align with a plurality of openings (305) on the one or more securing members (202). This configuration provides a sandwich configuration wherein the one or more leaf suspensions (203R, 203L) is disposed between the one or more securing member (202) on top and the suspension mounting (304) of the axle assembly (300) at the bottom, thereby securing the one or more leaf suspensions (203R, 203L).
[0060] As per another embodiment of the present invention, the one or more leaf suspensions (203L, 203R) comprises one or more braces (208). The one or more braces (208) are configured to secure the structure of the one or more leaf suspensions (203L, 203R) which are stacked together in a bow-shaped configuration when seen from a side view of the vehicle (100).
[0061] The one or more securing members (202, as shown in Figure - 5) are configured to mount one or more dampers (206L, 206R). In an embodiment of the present invention, the one or more dampers (206L, 206R) may include a left damper (206L) and a right damper (206R). The one or more dampers (206L, 206R) are configured to support a frame (105) of the vehicle (100), when vehicle (100) is in a loaded configuration. In one embodiment the one or more dampers (206L, 206R) are configured to be mounted on the frame (105) of the vehicle (100). The dampers (206L, 206R) not only support the weight of the vehicle's frame, but they also act as a buffer against potentially damaging metal-on-metal contact. This function is particularly vital when the vehicle is carrying a load, as excessive vibrations or shocks could lead to wear and tear or even structural damage. By absorbing and dispersing these forces, the dampers ensure a smoother and more controlled ride, enhancing both comfort and safety for the vehicle's occupants. In an embodiment, the loaded condition of the vehicle (100) is indicative of the load carried by the vehicle, the load may be due to passengers or cargo. In one embodiment, the one or more dampers (206L, 206R) can be made up of non-metallic material such as rubber, polymer or other dampening substances to avoid metal to metal contact between the frame (105) and the one or more leaf suspensions (103R, 103L). This helps in unwanted wear and tear between critical metal parts like the frame (105) and the suspension assembly (200).
Figure – 9 and 10 show another exemplary embodiment wherein the shaft member (302) is not in a straight profile configuration. In this embodiment, the shaft member (302) comprises a bend portion (311). The bend portion (311) comprising a plurality of bends (302A, 302B). The plurality of bends (302A, 302B) is configured to accommodate one or more components of the vehicle (100) via a receiving space (300S) of the axle assembly (300). The one or components can include a transmission assembly, a power train or a storage unit or any other suitable component as per vehicular configuration. Further, in this embodiment, the one or more dampers (206L, 206R) are mounted on the underside (not shown) of the frame (105) of the vehicle (100). Upon an excessive load, the one or more leaf suspensions (203R, 203L) may get bent to a substantial extent and the one or more dampers (206R, 206L) interfaces with protrusion (207) attached to the one or more securing member (202). This helps in avoiding interference and wear and tear between the frame (105) and the suspension assembly (200).
[0062] As shown in Figure – 13 a vehicle (100) is provided. Where, Figure 13: illustrates a side view of a vehicle (100) as per another embodiment of the present disclosure. The vehicle (100) comprises one or more rotating members (101), a frame (105), a suspension assembly (200) and an axle assembly (300). The one or more rotating members (101) enable a movement of the vehicle (100). The frame (105) is configured to provide skeletal support to the vehicle (100). The axle assembly (300) comprises a shaft member (302). The shaft member (302) extends in a vehicle width direction. The shaft member (302) is configured to connect the one or more rotating members (101). The suspension assembly (200) is configured to support the frame (105).
The suspension assembly (200) comprises a plurality of suspension members (201L, 201R), one or more leaf suspensions (203L, 203R). The plurality of suspension members (201L, 201R) is connected to the frame (105) of the vehicle (100) and the plurality of suspension members (201L, 201R) is mounted on the axle assembly (300). The one or more leaf suspensions (203L, 203R) are connected to the frame (105) of the vehicle (100) and the one or more leaf suspensions (203L, 203R) are mounted on the axle assembly (300). The vehicle (100) comprises a control system configured to adjust the stiffness of the one or more dampers (206L, 206R) based on real-time driving conditions, optimizing vehicle handling and comfort.
[0063] The axle assembly (300) comprises a plurality of mounting portions (301L, 301R) and one or more link portions (303L, 303R). The plurality of mounting portions (301L, 301R) is connected to the shaft member (302) and the plurality of mounting portions (301L, 301R) is configured to be connected to the one or more leaf suspensions (203L, 203R). The one or more link portions (303L, 303R) are integrated with the shaft member (302) and the one or more link portions (303L, 303R) are configured to be connected to the plurality of suspension members (201L, 201R).
[0064] As per another embodiment of the present invention, each portion of the plurality of mounting portions (301L, 301R) comprising an axle mounting (306), the axle mounting (306) being configured to mount a brake unit (104) of the vehicle (100).
[0065] As per another embodiment of the present invention, the axle assembly (300) comprises an axle mounting (306). The axle mounting (306) comprises an opening (306O), the opening (306O) is configured to receive a driveshaft (106) of the vehicle (100). The driveshaft (106) is configured to be connected to a drum (107) of the vehicle (100). The drum (107) is configured to mount the one or more rotating members (101). The drum (107) is configured to receive one or more brake members of the brake unit (104). In an embodiment, the one or more brake members may include but not limited to one or more brake pads, a disc brake, a pressure brake unit etc. The one or more brake members are configured to apply friction on the inner surface of the drum (107) thereby stopping the movement of the vehicle (100).
[0066] According to the above disclosure, the present invention provides various advantages. In the preferred exemplary embodiment, the straight configuration of the shaft member (302) enables an optimum alignment the one or more rotating members (101) of the vehicle (100), where one or more rotating members (101) may be one or more wheels.
[0067] The straight configuration of the shaft member (302) does not carry any stress such as loading stress, bending stress, torsional stress etc. which occur due to the formation of bends during manufacturing, which lead to failure points of the axle assembly (300).
[0068] Each mounting portion (301L, 301R) further comprises a vibration-dampening material positioned between the mounting portion and the one or more rotating members (101), thereby reducing noise and enhancing ride comfort.
[0069] The shaft member (302) comprises a corrosion-resistant coating, enhancing the longevity and durability of the axle assembly under various environmental conditions.
[0070] The one or more link portions (303L, 303R) are adjustable, allowing for fine-tuning of the vehicle's suspension characteristics to accommodate different driving conditions or preferences.
[0071] The vehicle (100) comprises a control system configured to adjust the stiffness of the one or more dampers (206L, 206R) based on real-time driving conditions, optimizing vehicle handling and comfort.
[0072] The axle assembly (300) enables a single synergistic mounting for the one or more leaf suspensions (203L, 203R), one or more dampers (206L, 206R) and one or more suspension members (201L, 201R), which results in a reduction in the number of parts, the reduction in weight of the vehicle and provide a simpler configuration to the suspension assembly (200). No additional mounting brackets or other mounting members are required to separately mount the above said components of the suspension assembly (200). This also reduces the tack time of assembling the vehicle (100).
[0073] The axle assembly (300) acts as a centralized support structure which enhances the overall structural integrity of the suspension assembly (200).
[0074] The plurality of mounting portions (301L, 301R) of the axle assembly (300) provides a better load distribution to the suspension assembly (200) by providing single assembly for mounting to one or more leaf suspensions (203L, 203R), one or more dampers (206L, 206R) and one or more suspension members (201L, 201R), which improves the driving and handling characteristics of the vehicle (100).
[0075] The integrated configuration of plurality of mounting portions (301L, 301R) enables an easy assembly and dismantling of the suspension assembly (200) thereby improving the maintenance and serviceability and requiring less time.
[0076] The suspension assembly (200) optimizes the load distribution and ensures that the axle assembly (300), the brakes unit (104), and one or more rotating members (101) are well-supported, thereby significantly improving the performance and load-bearing capacity.
[0077] The straight configuration of the shaft member (302) contributes to the ability of the axle assembly (300) to handle higher loads while maintaining durability and reliability.
[0078] The straight configuration of the shaft member enables the axle assembly to provide a single mounting assembly to the one or more suspension members, a better load distribution to the suspension assembly, reduced assembly time and improved serviceability, provide an improved load bearing capacity, proper wheel alignment, better stress distribution among other benefits.
[0079] While the present invention has been shown and described with reference to the foregoing preferred embodiments, it will be apparent to those skilled in the art that changes in form, connection, and detail may be made therein without departing from the spirit and scope of the invention.
[0080] This written description uses examples to provide details on the disclosure, including the best mode, and also to enable any person skilled in the art to practice the disclosure, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the disclosure is defined by the claims and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
[0081] It is to be understood that the aspects of the embodiments are not necessarily limited to the features described herein. Many modifications and variations of the present subject matter are possible in light of the above disclosure.

LIST OF REFERENCES

Reference Numeral Meaning
300 An axle assembly
300S A receiving space
301L A left portion of plurality of mounting portions
301R A right portion of plurality of mounting portions
302 A shaft member
302A A first bend of plurality of bends
302B A second bend of plurality of bends
303L A left link portion of one or more link portions
303R A right link portion of one or more link portions
304 A suspension mounting of a plurality of mounting portions
304H One or more holes on the suspension mounting
305 A plurality of openings
306 An axle mounting
306O An opening of an axle mounting
307 A bracket of one or more lateral axle bracket
308 A bracket of one or more lateral axle bracket
308O A bracket opening (308O)
310 A plurality of connecting members
311 A bend portion of a shaft member of an axle assembly
200 A suspension assembly
201L A left suspension member of a plurality of suspension members
201R A right suspension member of a plurality of suspension members
202 One or more securing member
203L A left leaf suspension of one or more suspension members
203R A right leaf suspension of one or more suspension members
204 A connecting portion of plurality of connecting portions
205 A connecting portion of plurality of connecting portions
206L A left damper of one or more dampers
206R A right damper of one or more dampers
207 A protrusion of one or more securing member
208 One or more braces
100 A vehicle
101 One or more rotating members
104 A brake unit
105 A frame
106 A drive shaft
, C , Claims:We Claim:
1. An axle assembly (300) of a vehicle (100), the axle assembly (300) comprising:
a shaft member (302), the shaft member (302) extending in a vehicle width direction, the shaft member (302) being configured to connect one or more rotating members (101);
a plurality of mounting portions (301L, 301R), the plurality of mounting portions (301L, 301R) being connected to the shaft member (302) and each portion of the plurality of mounting portions (301L, 301R) being configured to mount the one or more rotating members (101) of the vehicle (100); and
one or more link portions (303L, 303R), the one or more link portions (303L, 303R) being integrated with the shaft member (302).
2. The axle assembly (300) as claimed in claim 1 wherein, the axle assembly (300) being configured to provide a receiving space (300S), the receiving space (300S) being configured to receive a receive one or more components of the vehicle (100).
3. The axle assembly (300) as claimed in claim 1 wherein, the one or more link portions (303L, 303R) being configured to mount one or more suspension members (201L, 201R) of the suspension assembly (200).
4. The axle assembly (300) as claimed in claim 1 wherein, each portion of the plurality of mounting portions (301L, 301R) comprising a suspension mounting member (304), the suspension mounting member (304) being configured to receive a plurality of connecting members (310) via a plurality of openings (305).
5. The axle assembly (300) as claimed in claim 1 wherein, each portion of the plurality of mounting portions (301L, 301R) comprising:
an axle mounting (306), the axle mounting (306) comprising an opening (306O), the opening (306O) being configured to receive a driveshaft of the vehicle (100) and
the axle mounting (306) being configured to mount a brake unit (104) of the vehicle (100).
6. The axle assembly (300) as claimed in claim 1 wherein, the one or more axle mounting portions (301L, 301R) comprise one or more lateral axle brackets (307, 308), the one or more lateral axle brackets (307, 308) being configured to receive a driveshaft of the vehicle (100) via a bracket opening (308O).
7. The axle assembly (300) as claimed in claim 1 wherein, the shaft member (302) comprising a bend portion (311), the bend portion (311) comprising a plurality of bends (302A, 302B), the plurality of bends (302A, 302B) being configured to accommodate one or more components of the vehicle (100) via a receiving space (300S).
8. The axle assembly (300) as claimed in claim 1 wherein, the shaft member (302) being configured to have a straight profile, the shaft member (302) comprising a shaft axis (X-X’), the shaft axis (X-X’) being a center line running across a length (L) of the shaft member (302), and
the shaft axis (X-X’) of the shaft member (302) being configured to be offset at a distance (D) from a mounting axis (A-A’), the mounting axis (A-A’) being a center line running through the plurality of mounting portions (301L, 301R).
9. A suspension assembly (200) of a vehicle (100), the suspension assembly (200) comprising:
a plurality of suspension members (201L, 201R), the plurality of suspension members (201L, 201R) being connected to to one or more portions (105) of the vehicle (100) and the plurality of suspension members (201L, 201R) being mounted on an axle assembly (300);
one or more leaf suspensions (203L, 203R), the one or more leaf suspensions (203L, 203R) being connected to the one or more portions (105) of the vehicle (100) and the one or more leaf suspensions (203L, 203R) being mounted on the axle assembly (300);
wherein
the axle assembly (300) comprising:
a shaft member (302), the shaft member (302) being configured in a straight profile and extending in a vehicle width direction, the shaft member (302) being configured to connect one or more rotating members (101);
a plurality of mounting portions (301L, 301R), the plurality of mounting portions (301L, 301R) being connected to the shaft member (302) and the plurality of mounting portions (301L, 301R) being configured to be connected to the one or more leaf suspensions (203L, 203R); and
one or more link portions (303L, 303R), the one or more link portions (303L, 303R) being integrated with the shaft member (302) and the one or more link portions (303L, 303R) being configured to be connected to the plurality of suspension members (201L, 201R).
10. The suspension assembly (200) as claimed in claim 9, wherein
the one or more portions (105) of the vehicle (100) including a frame of the vehicle;
the one or more leaf suspension (203L, 203R) being configured to be mounted on a suspension mounting (304) of the plurality of mounting portions (301L, 301R) via the one or more securing member (202); and
the one or more leaf suspensions (203L, 203R) being configured to be connected to the frame (105) via a plurality of connecting portions (204, 205).
11. The suspension assembly (200) as claimed in claim 10, wherein the one or more leaf suspensions (203L, 203R) comprising one or more braces (208), the one or more braces (208) being configured to secure the structure of the one or more leaf suspensions (203L, 203R).
12. The suspension assembly (200) as claimed in claim 10, wherein the one or more securing members (202) being configured to mount one or more dampers (206L, 206R) wherein the one or more leaf suspensions (203L 203R) and the one or more securing members (202) being mounted in a sandwich configuration on the plurality of mounting portions (301L, 301R).
13. The suspension assembly (200) as claimed in claim 11, wherein the one or more securing member (202) comprising a protrusion (207).
14. A vehicle (100), the vehicle (100) comprising:
one or more rotating members (101), the one or more rotating members (101) enable a movement of the vehicle (100);
a frame (105), the frame (105) being configured to provide skeletal support to the vehicle (100);
an axle assembly (300), the axle assembly (300) comprising a shaft member (302), the shaft member (302) being configured in a straight profile and extending in a vehicle width direction, the shaft member (302) being configured to connect the one or more rotating members (101);
a suspension assembly (200), the suspension assembly (200) being configured to support the frame (105), the suspension assembly (200) comprising:
a plurality of suspension members (201L, 201R) the plurality of suspension members (201L, 201R) being connected to the frame (105) of the vehicle (100) and the plurality of suspension members (201L, 201R) being mounted on the axle assembly (300);
one or more leaf suspensions (203L, 203R), the one or more leaf suspensions (203L, 203R) being connected to the frame (105) of the vehicle (100) and the one or more leaf suspensions (203L, 203R) being mounted on the axle assembly (300);
wherein
the axle assembly (300) comprising a plurality of mounting portions (301L, 301R), the plurality of mounting portions (301L, 301R) being connected to the shaft member (302) and the plurality of mounting portions (301L, 301R) being configured to be connected to the one or more leaf suspensions (203L, 203R); and
one or more link portions (303L, 303R), the one or more link portions (303L, 303R) being integrated with the shaft member (302) and the one or more link portions (303L, 303R) being configured to be connected to the plurality of suspension members (201L, 201R).
15. The vehicle (100) as claimed in claim 13, wherein each portion of the plurality of mounting portions (301L, 301R) comprising an axle mounting (306), the axle mounting (306) being configured to mount a brake unit (104) of the vehicle (100).
16. The vehicle (100) as claimed in claim 13, wherein the axle assembly (300) comprising an axle mounting (306), the axle mounting (306) comprising an opening (306O), the opening (306O) being configured to receive a driveshaft (106) of the vehicle (100) and
the driveshaft (106) being configured to be connected to a drum (107) of the vehicle (100), the drum (107) being configured to mount the one or more rotating members (101).

Dated this 10th day of March 2024

[Digitally signed]
Sudarshan Singh Shekhawat
IN/PA – 1611
Agent for the Applicant