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A Wheel Assembly

Abstract: The present invention provides a wheel swing arm assembly (100) for a vehicle. The wheel swing arm assembly (100) comprising a swing arm (101), a wheel shaft assembly (200). Herein the wheel shaft assembly (200) comprises a wheel (301), a wheel shaft (201a) coupled with the wheel (301), a brake disc (201b) coupled with the wheel shaft (201a) and a mounting bracket (201e) for a wheel assembly. The mounting bracket (201e) comprising a base portion (201eb) and a top portion (201et). the base portion (201eb) is attachable to a portion of a brake disc (201b) and the top portion (201et) is attachable to a portion of the wheel assembly via at least one securing component. The present subject matter offers an advantage of providing a wheel assembly that can allows easy removal of wheel without lifting the vehicle, without disassembling brake calliper assembly and without compromising the braking performance. To be published with Fig. 3

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
31 March 2024
Publication Number
40/2025
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

TVS Motor Company Limited
Jayalakshmi Estate, No 29 (Old No 8), Haddows Road
TVS Motor Company Limited
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006

Inventors

1. DHINESH KANNU VAIRAKKANNU
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006
2. LAVANYA VENKATESH
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006
3. MANICKAM SUBASH
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006
4. MOHAN SUDARSHAN
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006
5. KARANAM VENKATA MANGA RAJU
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006

Specification

DESC:TECHNICAL FIELD
[0001] The present subject matter generally relates to a wheel assembly for a vehicle. More particularly, the present subject matter relates to the wheel assembly having a mounting bracket to enable mounting of one or more vehicular components of the wheel assembly.

BACKGROUND

[0002] Conventional vehicles may have two types of swing arm designs namely a double-sided swing arm or a single sided swing arm. Though the double-sided swing arm offers structural stability but require lifting the vehicle and disassembling multiple components for wheel removal, making it a tedious process. Single-sided swingarms, on the other hand, simplify a process of wheel removal from one side of the vehicle without lifting the vehicle. However, there are problems associated with single swing arm. For example, the single-sided swingarm often employ a floating brake disc mounted on the wheel hub. The floating disc enables easy removal of wheel but along with a significant drawback. During the braking, the calliper pads clamp onto one side of the floating disc. Due to the axial float, the disc acts as a cantilever beam, susceptible to bending in the opposite direction. Due to the axial float design, the disc acts like a cantilever beam when braking forces are applied. A cantilever beam is fixed at one end and free on the other end, similar to a diving board. This is also known as cantilever effect.
[0003] In this scenario, the side of the disc opposite the calliper becomes unsupported and susceptible to bending due to the braking force acting as a moment arm. The bending occurs repeatedly throughout the vehicle's life with every braking application. The repeated bending stresses the disc material, leading to metal fatigue. Metal fatigue is a gradual weakening of the material due to repeated cyclical loading. Over time, fatigue cracks can develop in the disc, compromising its structural integrity and potentially leading to disc failure. A disc failure can be catastrophic. It can cause a complete loss of braking power on one wheel, leading to a potential accident. Even before complete failure, excessive disc bending can negatively impact braking performance. A warped disc can cause vibrations during braking, reducing stopping power and driver feel. The current design of floating brake discs in single-sided swingarms creates a conflict between ease of wheel removal and disc durability. While the floating design simplifies maintenance, it makes the disc vulnerable to bending during braking, leading to potential fatigue failure and reduced braking performance.
[0004] Thus, there arises a need to provide a wheel assembly that can provide easy removal of wheel without lifting the vehicle, without disassembling brake calliper assembly and without compromising the braking performance.
SUMMARY

[0005] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
[0006] According to embodiments illustrated herein, the present disclosure provides a mounting bracket comprising a base portion and a top portion. Herein, the base portion is attachable to a portion of a brake disc and the top portion is attachable to a portion of the wheel assembly via at least one securing component.
[0007] In an embodiment, the top portion is on the base portion. The base portion includes a first plurality of projections. The first plurality of projections includes a first projection and a second projection. The top portion includes a
second plurality of projections. The second plurality of projections includes a third projection and a fourth projection. The third projection is between the first projection and the second projection. Herein an area of the base portion is larger than an area of the top portion.
[0008] In an embodiment, the mounting bracket is secured to the brake disc at a first end and the wheel assembly at a second end through a securing nut and a securing ring.
[0009] In an embodiment, the top portion of the mounting bracket includes a first plurality of openings.
[00010] In an embodiment, the bottom portion of the mounting bracket includes a second plurality of openings configure to receive plurality of disc mounting bolts.
[00011] In an embodiment, the mounting bracket includes a central opening.
[00012] According to embodiments illustrated herein, the present disclosure provides a wheel swing arm assembly for a vehicle. The wheel swing arm assembly comprising a swing arm, a wheel shaft assembly. The wheel shaft assembly comprising a wheel, a wheel shaft coupled with the wheel, a brake disc coupled with the wheel shaft and a mounting bracket for a wheel assembly. The mounting bracket comprising a base portion and a top portion. Herein the base portion is attachable to a portion of a brake disc and the top portion is attachable to a portion of the wheel assembly via at least one securing component.
[00013] In an embodiment, the top portion is on the base portion. The base portion includes a first plurality of projections. The first plurality of projections includes a first projection and a second projection. The top portion includes a second plurality of projections. The second plurality of projections includes a third projection and a fourth projection. The third projection is between the first projection and the second projection. Herein an area of the base portion is larger than an area of the top portion.
[00014] In an embodiment, the mounting bracket is secured to the brake disc at a first end and the wheel assembly at a second end through a securing nut and a securing ring.
[00015] In an embodiment, the top portion of the mounting bracket includes a first plurality of openings.
[00016] In an embodiment, the bottom portion of the mounting bracket includes a second plurality of openings configure to receive plurality of disc mounting bolts.
[00017] In an embodiment, the mounting bracket includes a central opening.
[00018] In an embodiment, the wheel shaft assembly includes a toner ring and one or more tonner ring mounting bolts.
[00019] In an embodiment, the brake disc is pre-assembled with the tonner ring using plurality of disc mounting bolts and the one or more tonner ring mounting bolts.
[00020] In an embodiment, a spacer is provided between the mounting bracket and the swing arm.
[00021] In an embodiment, the wheel shaft is configured to have multiple grooves to enable a spline connection between the wheel shaft and the mounting bracket.
[00022] In an embodiment, the wheel shaft is inserted in a central opening of the mounting bracket.

BRIEF DESCRIPTION OF DRAWINGS

[0001] The present invention will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention.
[0002] The detailed description is described with reference to the accompanying figures, which is related to a movable load-carrying device which can be a multi wheeled vehicle being one embodiment of the present

subject matter. However, the present subject matter is not limited to the depicted embodiment(s). In the figures, the same or similar numbers are used throughout to reference features and components.
[0003] Fig. 1 illustrates a perspective view of a rear wheel swing arm
assembly, in accordance with an embodiment of the present subject matter. [0004] Fig. 2 illustrates a perspective view of a rear wheel shaft assembly, in accordance with an embodiment of the present subject matter.
[0005] Fig. 3 illustrates a perspective view of a mounting bracket of the rear wheel shaft assembly, in accordance with an embodiment of the present subject
matter.
[0006] Fig. 4 illustrates an exploded view of the rear wheel shaft assembly of a vehicle, in accordance with an embodiment of the present subject matter.
[0007] Fig. 5 illustrates a perspective view of the rear wheel shaft of the rear wheel shaft assembly, in accordance with an embodiment of the present subject matter.
[0008] Fig. 6 illustrates a sectional view of the rear wheel shaft assembly, in accordance with an embodiment of the present subject matter.
[0009] Fig. 7 illustrates a perspective view of the mounting bracket of the rear wheel shaft assembly, in accordance with an embodiment of the present subject matter.

DETAILED DESCRIPTION

[00010] The present disclosure may be best understood with reference to the detailed figures and description set forth herein. Various embodiments are discussed below with reference to the figures. However, those skilled in the art will readily appreciate that the detailed descriptions given herein with respect to the figures are simply for explanatory purposes as the methods and systems may extend beyond the described embodiments. For example, the teachings presented, and the needs of a particular application may yield multiple alternative and suitable approaches to implement the functionality of any detail
described herein. Therefore, any approach may extend beyond the particular implementation choices in the following embodiments described and shown.
[00011] References to “one embodiment,” “at least one embodiment,” “an embodiment,” “preferred embodiment,” “one example,” “an example,” “for example,” and so on indicate that the embodiment(s) or example(s) may include a particular feature, structure, characteristic, property, element, or limitation but that not every embodiment or example necessarily includes that particular feature, structure, characteristic, property, element, or limitation. Further, repeated use of the phrase “in an embodiment” does not necessarily refer to the same embodiment.
[00012] The present invention now will be described more fully hereinafter with different embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather those embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the invention to those skilled in the art.
[00013] 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. [00014] Various features and embodiments of the present subject matter here will be discernible from the following further description thereof, set out hereunder. It is contemplated that the concepts of the present subject matter may be applied to any kind of vehicle within the spirit and scope of this subject matter. The detailed explanation of the constitution of parts other than the present subject matter which constitutes an essential part has been omitted at suitable places.
[00015] It is an object of the present invention to provide a wheel shaft assembly for a vehicle that addresses cantilever effect and prevent excessive bending of the disc during braking, ensuring its longevity and optimal braking performance. It is also an object of the present invention to allow easy removal of rear wheel from side of the vehicle without lifting, thereby allows ease of serviceability. It is also an object of the present invention to avoid premature fatigue failure and thereby provide optimal braking performance for the vehicle. It is also an objective to provide a safer and more reliable braking system for single-sided swingarm vehicles, while maintaining the convenience of simplified wheel removal. It is also an object of the present invention to provide rear wheel shaft assembly having lesser number of parts, thereby reducing part count and reducing overall cost of the vehicle. It is also an object of the present invention to provide a rear wheel shaft that helps in facilitating the brake disc, tonner ring and rear wheel of the vehicle with improved aesthetic appearance, part reduction and enhanced performance of the vehicle.
[00016] The present subject matter along with all the accompanying embodiments and their other advantages would be described in greater detail in conjunction with the figures in the following paragraphs.
[00017] 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. [00018] Fig. 1 illustrates a perspective view of a rear wheel swing arm assembly (100), in accordance with an embodiment of the present subject matter. The wheel swing arm assembly (100) illustrates a swing arm (101), a wheel shaft assembly (200). The wheel swingarm assembly (100) plays a crucial role in a vehicle's suspension system, particularly in motorcycles and some all-terrain vehicles (ATVs). It connects a rear wheel (301) to main frame of the vehicle, allowing for pivoting movement as the suspension absorbs bumps and road irregularities. In an embodiment, the swing arm (101) is a single sided swing arm. The swing arm (101) can be made of high strength materials like aluminum or steel alloys. In an embodiment, the swing arm (101) is connected to the main frame of the vehicle. The connection point between the swing arm (101) and the main frame is known as swing arm pivot. The swing arm pivot allows the swing arm (101) to pivot vertically, enabling suspension movement. Fig. 1 also illustrates a few components of the wheel shaft assembly (200) such as brake disc (201b) and toner ring (201c).
[00019] Fig. 2 illustrates a perspective view of the wheel shaft assembly (200), in accordance with an embodiment of the present subject matter. Fig. 3 illustrates a perspective view of a mounting bracket (201e) of the wheel shaft assembly (200), in accordance with an embodiment of the present subject matter. For sake of brevity, Fig. 2 and Fig. 3 shall be explained together.
[00020] The wheel shaft assembly (200) comprises a rear wheel hub (not shown), rear wheel shaft (201a), the brake disc (201b), and the toner ring (201c). The rear wheel shaft (201a) runs through the swingarm (101) and the wheel hub, allowing the wheel to rotate. The rear wheel shaft (201a) is typically secured with nuts or cotter pins on both sides of the swingarm (101). The wheel hub is a central portion of the rear wheel (301) that connects to rear wheel shaft (201a) and houses bearings that enable wheel rotation. The rear wheel shaft assembly (201) comprises a mounting bracket (201e). In an embodiment, the mounting bracket (201e) comprises a base portion (201eb) and a top portion (201et). The top portion (201et) is on the base portion (201eb). The base portion (201eb) includes a first plurality of projections. The first plurality of projections includes a first projection (201ebf) and a second projection (201ebs). The top portion (201et) includes a second plurality of projections. The second plurality of projections includes a third projection (201ett) and a fourth projection (201etp). Herein the third projection (201ett) is between the first projection (201ebf) and the second projection (201ebs). In an embodiment, an area of the base portion (201eb) is larger than an area of the top portion (201et).

[00021] In an embodiment, the base portion (201eb) is attachable to a portion of a brake disc (201b) and the top portion (201et) is attachable to a portion of the wheel assembly via at least one securing component. The mounting bracket (201e) is secured to the brake disc at a first end and the wheel assembly at a second end through a securing nut (201f) and a securing ring (201g).
[00022] Fig. 4 illustrates an exploded view of the wheel swing arm assembly (100) of a vehicle, in accordance with an embodiment of the present subject matter. The wheel swing arm assembly (100) for a vehicle comprising a swing arm (101), a wheel shaft assembly (200). The wheel shaft assembly (200)
comprising a wheel (301), a wheel shaft (201a) coupled with the wheel (301), a brake disc (201b) coupled with the wheel shaft (201a; and a mounting bracket (201e) for a wheel assembly. The mounting bracket (201e) comprising a base portion (201eb) and a top portion (201et). Herein the base portion (201eb) is attachable to a portion of a brake disc (201b) and the top portion (201et) is attachable to a portion of the wheel assembly via at least one securing component.
[00023] Fig. 4 also illustrates that the wheel shaft assembly (201) includes wheel shaft (201a), the brake disc (201b), the tonner ring (201c), one or more tonner ring mounting bolts (201d), the mounting bracket (201e), the securing nut (201f), the securing ring (201g), plurality of disc mounting bolts (201h).
[00024] In an embodiment, the wheel shaft (201a) is inserted into the swing arm (101) which has eccentric housing sub assembly (101a).
[00025] In an embodiment, a spacer (101b) is provided between the mounting bracket (201e) and the swing arm (101). The spacer (101b) ensures a predefined gap between the mounting bracket (201e) and the swing arm (101). [00026] In an embodiment, the mounting bracket (201e) enables mounting for the brake disc (201b). The brake disc (201b) is pre-assembled with the tonner ring (201c) using the plurality of disc mounting bolts (201h) and the one or more tonner ring mounting bolts (201d).
[00027] In an embodiment, the mounting bracket (201e) is secured with the help securing nut (201f) and the securing ring (201g), to secure position of the mounting bracket (201e). In an embodiment, the rear wheel (301) is mounted on the mounting bracket (201e) from other side.
[00028] In an embodiment, the wheel shaft (201a) is connected with the mounting bracket (201e) using a spline connection. The drive torque from pulley is transferred to the rear wheel shaft (201a) and it is transmitted to the wheel (301) through the mounting bracket (201e).
[00029] Fig. 5 illustrates a perspective view of the rear wheel shaft (201a) of the rear wheel shaft assembly (201), in accordance with an embodiment of the present subject matter. In an embodiment, the wheel shaft (201a) has multiple grooves (502) to enable spline connection between the rear wheel shaft (201a) and the mounting bracket (201e).
[00030] Fig. 6 illustrates a sectional view of the wheel shaft assembly (200), in accordance with an embodiment of the present subject matter. In an embodiment, the wheel shaft (201a) is inserted in central opening of the mounting bracket (201e). In an embodiment, the spacer (101b) is provided to ensure predefined gap between the mounting bracket (201e) and the swing arm (101) of the vehicle.
[00031] Fig. 7 illustrates a perspective view of the mounting bracket (201e) of the rear wheel shaft assembly (201), in accordance with an embodiment of the present subject matter. In an embodiment, the mounting bracket (201e) comprises the top portion (201et) and the bottom portion (201eb). Herein, the top portion (201et) and the bottom portion (201eb) are integrally attached to each other. In an embodiment, the top portion (201et) of the mounting bracket (201e) configured to have multiple first openings (611) to receive wheel mounting bolts. In an embodiment, the bottom portion (201eb) of the mounting bracket (201e) configured to have multiple second openings (612) to receive plurality of disc mounting bolts (201h). In an embodiment, the mounting bracket (201e) has the central opening (201eo) to receive the rear wheel shaft (201a).
[00032] The present subject matter may be implemented in any multi wheeled vehicle. However, for the purpose of explanation and by no limitation, the present invention, and corresponding additional advantages and features are described through the following embodiments depicting a multi wheeled vehicle.
[00033] Thus, the present subject matter offers an advantage of providing a wheel assembly that can allows easy removal of wheel without lifting the vehicle, without disassembling brake calliper assembly and without compromising the braking performance. The present subject matter offers advantage of enhanced braking performance by addressing bending issues in disc brake of floating discs. Another advantage of the present subject matter is that the mounting bracket allows different mounting points for wheel and disc, thereby solving two problems with single solution. Another advantage of the present subject matter. Another advantage of the present subject matter is that it allows ease of serviceability and saves time of servicemen while servicing and removing wheel without disassembling brake caliper assembly. It additionally simplifies the disassembly process. Another advantage of the present subject matter is solution to cantilever effect of the brake disc as the mounting bracket here restricts excessive disc movement during braking, thereby proving enhanced braking performance. Another advantage of the present subject matter is improved durability and better vehicle performance by solving fatigue issues of the disc brake. Another advantage of the present subject matter is enhanced safety by minimising bending issues, extending lifespan and reducing risk of fatigue failure. Another advantage of the present subject matter
[00034] While certain features of the claimed subject matter have beenillustrated and described herein, many modifications, substitutions, changes, and equivalents will now occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes that fall within the true spirit of the claimed subject matter. ,CLAIMS:We claim:

1. A mounting bracket (201e) for a wheel assembly, comprising: a base portion (201eb); and
a top portion (201et), wherein the base portion (201eb) is attachable to a portion of a brake disc (201b) and the top portion (201et) is attachable to a portion of the wheel assembly via at least one securing component.

2. The mounting bracket (201e) as claimed in claim 1, wherein
the top portion (201et) is on the base portion (201eb),
the base portion (201eb) includes a first plurality of projections,
the first plurality of projections includes a first projection (201ebf) and a second projection (201ebs),
the top portion (201et) includes a second plurality of projections,
the second plurality of projections includes a third projection (201ett) and a fourth projection (201etp),
the third projection (201ett) is between the first projection (201ebf) and the second projection (201ebs),
an area of the base portion (201eb) is larger than an area of the top
portion (201et).

3. The mounting bracket (201e) as claimed in claim 1, wherein the mounting bracket (201e) is secured to the brake disc (201b) at a first end and the wheel assembly at a second end through a securing nut (201f) and a securing ring
(201g).
4. The mounting bracket (201e) as claimed in claim 1, wherein the top portion (201et) of the mounting bracket (201e) includes a first plurality of openings (611).

5. The mounting bracket (201e) as claimed in claim 1, wherein the bottom portion (201eb) of the mounting bracket (201e) includes a second plurality of openings (612) configure to receive a plurality of disc mounting bolts (201h).

6. The mounting bracket (201e) as claimed in claim 1, wherein the mounting bracket (201e) includes a central opening (201eo).

7. A wheel swing arm assembly (100) for a vehicle, the wheel swing arm
assembly (100) comprising: a swing arm (101);
a wheel shaft assembly (200),
the wheel shaft assembly (200) comprising: a wheel (301);
a wheel shaft (201a), the wheel shaft is coupled with the wheel (301);
a brake disc (201b), the brake disc is coupled with the wheel shaft (201a); and
a mounting bracket (201e) for a wheel assembly
comprising:
a base portion (201eb); and
a top portion (201et), wherein the base portion (201eb) is attachable to a portion of a brake disc (201b) and the top portion (201et) is attachable
to a portion of the wheel assembly via at least one securing component.

8. The wheel swing arm assembly (100) as claimed in claim 7, wherein the top portion (201et) is on the base portion (201eb),
the base portion (201eb) includes a first plurality of projections,

the first plurality of projections includes a first projection (201ebf) and a second projection (201ebs),
the top portion (201et) includes a second plurality of projections, the second plurality of projections includes a third projection
(201ett) and a fourth projection (201etp),
the third projection (201ett) is between the first projection (201ebf) and the second projection (201ebs),
an area of the base portion (201eb) being larger than an area of the top portion (201et).

9. The wheel swing arm assembly (100) as claimed in claim 7, wherein the mounting bracket (201e) being secured to the brake disc (201b) at a first end and the wheel assembly at a second end through a securing nut (201f) and a securing ring (201g).

10. The wheel swing arm assembly (100) as claimed in claim 7, wherein the top portion (201et) of the mounting bracket (201e) includes a first plurality of openings (611).

11. The wheel swing arm assembly (100) as claimed in claim 7, wherein the bottom portion (201eb) of the mounting bracket (201e) includes a second plurality of openings (612) configure to receive plurality of disc mounting bolts (201h).

12. The wheel swing arm assembly (100) as claimed in claim 7, wherein the mounting bracket (201e) includes a central opening (201eo).

13. The wheel swing arm assembly (100) as claimed in claim 7, wherein the wheel shaft assembly (200) includes a toner ring (201c) and one or more
tonner ring mounting bolts (201d).

14. The wheel swing arm assembly (100) as claimed in claim 13, wherein a brake disc (201b) is pre-assembled with the tonner ring (201c) using a plurality of disc mounting bolts (201h) and the one or more tonner ring mounting bolts (201d).

15. The wheel swing arm assembly (100) as claimed in claim 7, wherein a spacer (101b) is provided between the mounting bracket (201e) and the swing arm (101).

16. The wheel swing arm assembly (100) as claimed in claim 7, wherein the wheel shaft (201a) is configured to have multiple grooves (502) to enable a spline connection between the wheel shaft (201a) and the mounting bracket (201e).

17. The wheel swing arm assembly (100) as claimed in claim 7, wherein the wheel shaft (201a) is inserted in a central opening (201eo) of the mounting bracket (201e).

Documents

Application Documents

# Name Date
1 202441026901-PROVISIONAL SPECIFICATION [31-03-2024(online)].pdf 2024-03-31
2 202441026901-FORM 1 [31-03-2024(online)].pdf 2024-03-31
3 202441026901-FIGURE OF ABSTRACT [31-03-2024(online)].pdf 2024-03-31
4 202441026901-DRAWINGS [31-03-2024(online)].pdf 2024-03-31
5 202441026901-Proof of Right [24-06-2024(online)].pdf 2024-06-24
6 202441026901-FORM 18 [21-02-2025(online)].pdf 2025-02-21
7 202441026901-DRAWING [21-02-2025(online)].pdf 2025-02-21
8 202441026901-CORRESPONDENCE-OTHERS [21-02-2025(online)].pdf 2025-02-21
9 202441026901-COMPLETE SPECIFICATION [21-02-2025(online)].pdf 2025-02-21