Modular frame for e-bike and bicycle

Abstract

The present invention introduces a modular frame for e-bikes and bicycle, offering a versatile and customizable solution for cyclists The frame comprises plurality of members, including a head tube, top tube module, down tube module, seat tube module, seat stay modules (right and left), chain stay modules (right and left), seat stay connector, and chain stay connector. Each frame member is joined solely by fastening using basic hand tools, promoting ease of assembly and disassembly by end- users. Comprising Aluminum alloy components manufactured using casting, forging, and extrusion techniques, each frame member ensures robustness and durability. Permanently joined components of a frame member, whether through adhesive bonding or welding processes, ensure structural integrity and safety. Pre- assembly options enhance versatility, allowing for the creation of new frame variants by replacing specific frame members in an existing frame. Additionally, the modular frame's design enhances serviceability, providing a cost-effective solution for replacing damaged parts and minimizing the need for complete frame replacements. The modular frame design facilitates cost-effective manufacturing processes, reduces carbon footprint over the complete lifecycle of e-Bike and bicycle, and promotes environmental sustainability.

Description

MODUI AR FRAME FOR E-BIKE AND BICYCLEFIELD OF THE INVENTION

[0001] The present invention pertains to the field of bicycles and introduces a novel modular frame designed for both e-bikes and traditional bicycles. Comprising eight primary components, this innovative frame assembly is engineered for swift assembly through fastening mechanisms, minimizing the need for welding among its constituent parts.BACKGROUND OF INVENTION

[0002] The bicycle frame, serving as the backbone of any bicycle, has undergone significant evolution since its inception. From the classic diamond frame to modem variations, such as step-through frames and custom geometries, the design of bicycle frames has continually evolved to meet changing needs and preferences.

[0003] Traditionally, bicycle frames have been constructed as single, welded units, representing a fixed standard model. While effective in providing structural integrity, this approach presents limitations in terms of customization, repairability, and adaptability to diverse user requirements.

[0004] In recent years, there has been a notable shift towards modular design concepts across various industries. This trend reflects the growing demand for customizable products and experiences, driven by consumer preferences for tailored solutions that align with their individual lifestyles and preferences.

[0005] Modularity offers several advantages over traditional welded frames. By breaking down the frame into interchangeable components, users gain the flexibility to assemble, disassemble, and customize their bicycles according to their specific needs and preferences. This approach also facilitates easier repair and replacement of damaged or worn components, reducing maintenance costs and extending the lifespan of the bicycle.

[0006] While folding bicycles have gained popularity for their compactness and portability, traditional modular designs have been relatively less explored in the bicycle industry. Unlike folding bicycles, which focus on collapsibility for storage and transportation, modular bicycles prioritize flexibility and customization in terms of frame geometry, component selection, and riding experience.

[0007] The rise of modular design in other industries, such as furniture and consumer electronics, serves as a testament to its effectiveness in meeting diverse user needs and enhancing product flexibility. By applying similar principles to bicycle frame design, manufacturers can tap into this trend and offer a new generation of bicycles that empower users to create personalized riding experiences.

[0008] Against this backdrop of evolving consumer preferences and technological advancements, the present invention introduces a novel modular frame for e-bikes and bicycles. Designed to address the limitations of traditional welded frames, this innovative solution offers enhanced customization, repairability, and adaptability, catering to the evolving needs of modem cyclists.

[0009] Several modular bicycle designs have been explored in the prior art, which has been mentioned below.

[0010] US2020031416 describes a modular electric bicycle with the classic diamond frame design which has been designed to accommodate a d-c rechargeable battery pack within its top, down, and seat tube and conceal all electrical wiring inside the frame. The modular electric bicycle has been designed in order to ease the maintenance of electronic components and replace obsolete electronics just as easily as conventional bicycles can have mechanical components replaced.

[0011] W02004014717 gives a bicycle frame design using plateframe structural elements for a high-performance, full suspension bicycle having the ability to fold up in a package of compact size is provided. The main frame is formed by opposed plate frame elements (1, 2), patterned in the ergonomic dimensions and component arrangements therefrom used for contemporary mountain bikes. The patterned plate frame elements (1, 2) are cut from plate stock in a way that locates and mounts theoperative elements in positions required for bike function. Such plate frame structure is of modular, lightweight, and weldless construction. A mechanically simple, lightweight rear shock absorbing system (7, 8, 9) is incorporated. The design routes cables in an internal arrangement, separating them from rider or other attached components or accessories on the inboard side of the plateframe structure. Overall geometry and dimensions of this configuration are adjustable to provide a universal fit for riders of various sizes. The opposed plate frame elements can be separate plates structures or can be formed by folding a single blank having therein both opposed plate frame elements.

[0012] RU2694880 relates to machine building, particularly to modular electric bicycles. Modular electric bicycle comprises central module. Central module includes first and second connecting surfaces of central module. Central module is part of electric bicycle frame at connection of first connecting surface of central module with connecting surface of front module. Second connecting surface of the central module is connected to the connecting surface of the rear module. Electric bicycle assembly method comprises steps of connecting first connecting surface of central module with connecting surface of front module. Second connection surface of the central module with the connecting surface of the rear module is detachably connected.

[0013] JP2010285116 relates to a folding bicycle the wheel and frame, the frame and handlebar, and the like of which are easily foldable, and which is made compact into a size of equal to less than the diameter of a tire by storing every parts between front and rear wheels, and is easily portable. In the folding bicycle, a part between front and rear wheels of a bicycle and a bicycle body frame, a part between an intermediate part of the bicycle body frame, the bicycle body frame and the handlebar, and a part between the bicycle body frame and a saddle, are foldable by hinges, the front and rear wheels are assembled to each other to form a space part, and each parts of the bicycle can be stored in this space part.

[0014] EP1637444 provides a modular bicycle frame (1), comprising at least an upper frame unit (2) and a lower frame unit (3). The upper frame unit (2) includes two halfframes (20, 21), which are dismountably connected to each other and provide a mechanically openable box assembly. The lower frame unit (3) includes two halfframes (30, 31), which are dismountable connected to each other and provide a mechanically openable box assembly.

[0015] IN 2461 / CHE / 2015 discusses a foldable bicycle which includes a bicycle frame and two driving wheels. The bicycle frame has a front portion, a rear portion and a middie portion. The middie portion comprises of a sliding mechanism which collapses the middie triangular portion of the frame. The middie portion of the frame includes three supporting members to define a triangular structure, a slider-rail, a seat tube and a downtube. These parts are rotatably coupled with each other in order to achieve the foldability feature except at one region, where the downtube is coupled in such a way to slide along the slider-rails lengthwise. When the bicycle is folded, the front frame, the rear frame and the middie frame parts comprising of the slider-rail, the seat tube and the down tube all become parallel to each other. The handlebar is further folded, so that the bicycle is fully folded to reduce the volume largely, thereby greatly reducing the space of storage and transportation, and thereby facilitating a rider carrying the bicycle.

[0016] IN 201921024661 gives a foldable bicycle, and a method for making such a foldable cycle. The foldable cycle comprises a set of tubes and joints arranged to form a frame. The foldable bicycle further includes a caster wheel that is structured to allow the user to stroll the bicycles in the folded state without lifting the bicycle. A method for doing the same is also provided.

[0017] However, existing foldable and modular bicycles often lack the flexibility to interchange parts, limiting customization options according to the user’s preferences. Additionally, the complexity and cost associated with replacing damaged components pose significant challenges for cyclists. Moreover, many modular bike frames require professional assembly, preventing users from enjoying the convenience of Do-It- Yourself (DIY) customization. Thus, there is a pressing need for a truly modular frame for e-bikes and bicycles that overcomes these limitations. Such a frame should be easily assembled using basic tools, allowing users to interchange parts according to their preferences or when replacements are needed. Providing this flexibility in a user- friendly DIY kit would greatly enhance the portability and convenience of bicycles, addressing the evolving needs of modem cyclists.OBJECTIVE OF THE INVENTION

[0018] The objectives of the invention are tailored to enhance modularity, accessibility, customization, and environmental sustainability in e-bike and bicycle frame design. These objectives are succinctly outlined as follows:

[0019] The primary obj ective of the invention is to provide a modular frame for e-bikes and bicycles, wherein each part can be assembled solely by fastening using basic hand tools. This modular design enhances ease of assembly and maintenance, catering to a wide range of users.

[0020] Another key goal is to eliminate the need for large manufacturing and assembling facilities. By offering a modular frame that can be easily assembled without specialized equipment, the invention promotes accessibility and empowers individuals and small-scale manufacturers to enter the market.

[0021] Another object if the invention is to offer interchangeable parts, allowing users to customize their e-bikes and bicycles according to their preferences and requirements. This flexibility not only enhances user satisfaction but also expands the range of available options in the market.

[0022] Another object of the invention is to simplify shipping and storage logistics by allowing the frame to be easily disassembled into compact components. This minimizes packaging volume and storage space requirements, resulting in significant cost savings throughout the supply chain.

[0023] Yet, another object of the present invention is to reduce the overall carbon footprint associated with the manufacturing and logistics of e-bikes and bicycles. By minimizing the need for large-scale production facilities and optimizing packaging and transportation, the invention contributes to environmental sustainability.

[0024] One more object of the present invention seeks to simplify maintenance and repair processes by providing easily replaceable components. By reducing downtime and costs associated with repairs, the invention enhances the overall user experience and prolongs the lifespan of e-bikes and bicycles.

[0025] Another object of the present invention is to promote a do-it-yourself (DIY) culture by offering e-bike and bicycle frames in modular kits. Empowering users to assemble and customize their own vehicles fosters creativity, innovation, and a deeper connection with their mode of transportation.SUMMARY OF INVENTION

[0026] The main aspect of the present invention introduces a versatile modular frame for e-bike and bicycle, comprising ten key components meticulously designed for easy assembly without the need for welding. These components, including the Head Tube, Top Tube Module, Down Tube Module, Seat Tube Module, Seat Stay Right Module, Seat Stay Left Module, Chain Stay Right Module, Chain Stay Left Module, Seat Stay Connector, and Chain Stay Connector, are seamlessly fastened using bolts, offering users a hassle-free assembly experience.

[0027] Another aspect of the modular frame not only enhances user convenience but also provides practical benefits such as easy transportation and storage. Its ability to be disassembled into compact components reduces packaging volume and storage space, resulting in cost savings in shipping and warehousing. Moreover, the elimination of the need for complete complex welding processes reduces manufacturing complexities and associated costs, making it a cost-effective and environmentally friendly solution for both manufacturers and consumers.BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in, and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure, and together with the description, serve to explain the principles of the present disclosure.

[0029] In the figures, similar components and / or features may have the same reference label, further, various components of the same type may be distinguished by following the reference label with a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicableto any one of the similar components having the same first reference label irrespective of the second reference label.

[0030] Fig 1. illustrates different views of Member A (Head Tube) of the module frame.

[0031] Fig 2. illustrates different views of Member B (Tob Tube Module) of the module frame.

[0032] Fig 3. illustrates different views of Member C (Down Tube Module) of the module frame.

[0033] Fig 4. illustrates different views of Member D (Seat Tube Module) of the module frame.

[0034] Fig 5. illustrates different views of Member E (Seat Stay Module - Right) of the module frame.

[0035] Fig 6. illustrates different views of Member F (Seat Stay Module - Left) of the module frame.

[0036] Fig 7. illustrates different views of Member G (Chain Stay Module - Right) of the module frame.

[0037] Fig 8. illustrates different views of Member H (Chain Stay Module - Left) of the module frame.

[0038] Fig 9. illustrates different views of Member I (Seat Stay Connector) of the module frame.

[0039] Fig 10. illustrates different views of Member J (Chain Stay Connector) of the module frame.

[0040] Fig 11 (A), 11(B), 11(C), 11(D) illustrates different views of the assembled modular frame.

[0041] Fig 12(A), 12(B), 12(C), 12(D), 12(E), 12(F) illustrates section views of the assembled frame with details on member fastening and joinery of constituent components.

[0042] Fig 13. illustrates Step 1 of 6 for the assembly of the modular frame.

[0043] Fig 14. illustrates Step 2 of 6 for the assembly of the modular frame.

[0044] Fig 15. illustrates Step 3 of 6 for the assembly of the modular frame.

[0045] Fig 16. illustrates Step 4 of 6 for the assembly of the modular frame.

[0046] Fig 17. illustrates Step 5 of 6 for the assembly of the modular frame.

[0047] Fig 18. illustrates Step 6 of 6 for the assembly of the modular frame.DETAILED DESCRIPTION OF THE INVENTION

[0048] The obj ects and features of the present invention will become apparent from the following description of the invention when taken in conjunction with the accompanying drawings.

[0049] For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the various embodiments and specific language will be used to describe the same. It should be understood at the outset that although illustrative implementations of the embodiments of the present disclosure are illustrated below, the present invention may be implemented using any number of techniques, whether currently known or in existence. The present disclosure is not necessarily limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary design and implementation illustrated and described herein, but may be modified within the scope of the present disclosure.

[0050] It will be understood by those skilled in the art that the foregoing general description and the following detailed description are explanatory of the invention and are not intended to be restrictive thereof.

[0051] Reference throughout this specification to “an aspect”, “another aspect” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrase “in an embodiment”, “in another embodiment” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.

[0052] It is to be understood that as used herein, terms such as, “includes,” “comprises,” “has,” etc. are intended to mean that one or more features or elements listed are within the element being defined, but the element is not necessarily limited to the listed features and elements, and that additional features and elements may be within the meaning of the element being defined. In contrast, terms such as, “consisting of’ are intended to exclude features and elements that have not been listed.

[0053] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted to not unnecessarily obscure the embodiments herein. Also, the various embodiments described herein are not necessarily mutually exclusive, as some embodiments can be combined with one or more other embodiments to form new embodiments. The term “or” as used herein, refers to a non-exclusive or unless otherwise indicated. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein can be practiced and to further enable those skilled in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

[0054] Detailed embodiments of the instant invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific functional and structural details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representation basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.

[0055] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs.

[0056] The present invention overcomes the problems of prior practices about a modular frame for e-bikes and bicycles. The object, features, and advantages of the present invention will now be described in greater details. Also, the following description includes various specific details and is to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that: without departing from the scope and spirit of the present disclosure and its various embodiments there may be any number of changes and modifications described herein.

[0057] It must also be noted that as used herein and in the appended claims, the singular forms "a", "an", and "the" include plural references unless the context clearly dictates otherwise. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present invention, the preferred, systems are now described.

[0058] The main embodiment of the present invention is to provide a modular frame for e-bike and bicycle comprises precisely engineered components, each serving a specific function within the frame structure. Each component is meticulously designed to ensure optimal performance and compatibility with other parts. These components include: a) Head Tube b) Top Tube Module c) Down Tube Module d) Seat Tube Module e) Seat Stay Module - Right f) Seat Stay Module - Left g) Chain Stay Module - Right h) Chain Stay Module - Left i) Seat Stay Connector j) Chain Stay Connector

[0059] figure 1. presents a drawing of the head tube (Member A), which is a solid Aluminum alloy body manufactured by HPDC (High Pressure Die Casting). It features male mating features to connect with corresponding features of the top tube and down tube modules by axial bolting.

[0060] Figure 2. presents a drawing of the top tube module (Member B), which comprises Bl, B2, and B3. Bl is an extruded and hardened Aluminum section, whereas B2 and B3 are solid parts with female mating features to connect with corresponding features of the head tube and seat tube module by transverse bolting. The components are permanently joined by gluing (adhesive bonding).

[0061] Figure 3. presents a drawing of the down tube module (Member C), which consists of Cl, C2, and C3. Cl is an extruded and hardened Aluminum section, whereas C2 and C3 are solid parts with female mating features to connect with correspondingfeatures of the head tube and seat tube module by transverse bolting. The components are permanently joined by gluing.

[0062] Figure 4. presents a drawing of the seat tube module (Member D), which includes DI, D2, and D3. DI is an extruded and hardened Aluminum section, D2 is a forged solid Aluminum body, and D3 is a gravity die-casted Aluminum body. D2 and D3 have male mating features to connect with corresponding features of the top tube module, down tube module, seat stay modules (left and right), and chain stay modules (left and right). This member acts as the central part of the modular frame. The components are permanently joined by welding.

[0063] Figure 5. presents a drawing of the right seat stay module (Member E), which comprises El, E2, E3, and E4. El is an extruded and hardened Aluminum section, whereas E2, E3, and E4 are solid parts. E2 and E4 feature female mating features to connect with corresponding features of the seat tube module and chain stay modules. E3 has a male feature to connect with the seat stay connector. All connections are made by transverse bolting, and the components are permanently joined by gluing.

[0064] Figure 6. presents a drawing of the left seat stay module (Member F), which includes Fl, F2, F3, and F4. Fl is an extruded and hardened Aluminum section, whereas F2, F3, and F4 are solid parts. F2 and F4 feature female mating features to connect with corresponding features of the seat tube module and chain stay modules. F3 has a male feature to connect with the seat stay connector. All connections are made by transverse bolting, and the components are permanently joined by gluing.

[0065] Figure 7. presents a drawing of the right chain stay module (Member G), which comprises Gl, G2, and G3. G1 is an extruded and hardened Aluminum section, whereas G2 and G3 are solid parts with female mating features to connect with corresponding features of the seat stay module and chain stay module by transverse bolting. G2 also contains a male mating feature for connection with the chain stay connector. The components are permanently joined by gluing.

[0066] Figure 8. presents a drawing of the left chain stay module (Member H), which includes Hl, H2, and H3. Hl is an extruded and hardened Aluminum section, whereasH2 and H3 are solid parts with female mating features to connect with corresponding features of the seat stay module and chain stay module by transverse bolting. H2 also contains a male mating feature for connection with the chain stay connector. The components are permanently joined by gluing.

[0067] Figure 9. presents a drawing of the seat stay connector (Member I), which is an extruded and hardened Aluminum section with provisions to connect with the left and right seat stay modules.

[0068] Figure 10. presents a drawing of the chain stay connector (Member J), which is an extruded and hardened Aluminum section with provisions to connect with the left and right chain stay modules.

[0069] Assembly of the modular frame is a straightforward process that can be performed by end-users with basic hand tools. The assembly manual provides step-by- step instructions, guiding users through the process of fastening each component together securely. This user-friendly approach allows individuals of varying skill levels to build their bicycles efficiently. The assembly process is carefully optimized for simplicity and convenience. Detailed assembly instructions are provided, guiding users through each step of the process with clear illustrations and diagrams.

[0070] Another embodiment of the present invention is to provide assembled head Tube and Top Tube Modules. Take Member A (head tube), B (top tube module), and C (down tube module). Connect them as illustrated in Figure 13 using axial bolting through the head tube slot.

[0071] Another embodiment of the present invention is to provide a main Frame structure to Seat Tube Module a. Take the assembly from step 1. b. Connect it to Member D (seat tube module) using transverse bolting with bolts and barrel nuts, referring to Figure 14.

[0072] Another embodiment of the present invention is to provide Assemble Chain Stay Modulesa. Take Members G (chain stay module - right), H (chain stay module - left), and J (chain stay connector). b. Connect them as depicted in Figure 15 using transverse bolting.

[0073] Another embodiment of the present invention is to provide an attached main frame structure to chain stay modules a. Take the assemblies from steps 2 and 3. b. Connect Member D with Members G and H, referring to Figure 16.

[0074] Another embodiment of the present invention is to provide an assembly of Seat stay modules a. Take Members E (seat stay module - right), F (seat stay module - left), and I (seat stay connector). b. Connect them according to the configuration shown in Figure 17 using transverse bolting.

[0075] Another embodiment of the present invention is to provide a complete frame assembly a. Take the assemblies from steps 4 and 5. b. Refer to Figure 18 and connect Members E and F with Members D, G, and H.

[0076] Another embodiment of the present invention is to provide a tightened bolts with a torque wrench a. After assembling all frame members, use a torque wrench to tighten each bolt to the specified torque mentioned in the assembly instructions or guide.

[0077] One embodiment of the present invention is the frame components are crafted from high-quality materials, predominantly aluminum 6061 and 6063 alloys known for their light weight, strength, and durability. These materials undergo various heat treatment and hardening processes for increased strength and wear resistance, and they undergo rigorous testing to ensure compliance with industry standards and specifications. Various manufacturing techniques, including forging, casting, and extrusion, are employed to fabricate the components to precise specifications.ADVANTAGES OF THE INVENTION

[0078] One embodiment of the present invention is the key advantage of the modular frame design is its inherent interchangeability. Users have the flexibility to swap out individual components, such as the top tube or seat tube, to customize their bicycles according to personal preferences or specific requirements. This versatility allows for the creation of diverse bicycle configurations without the need for specialized tools or equipment. The modular frame is designed to be compatible with a wide range of bicycle types, including e-bikes and traditional pedal-powered bicycles. Additionally, certain frame modules feature universal attachment points for accessories such as front carts or rear racks, enhancing the bicycle's utility and versatility.

[0079] Disassembly of the frame is equally straightforward, allowing users to dismantle the bicycle for maintenance, storage, or transportation purposes. Fastening mechanisms ensure that components can be easily separated without the need for specialized tools, enabling quick and hassle-free disassembly whenever required.

[0080] The modular frame offers significant cost savings compared to traditional welded frames. By eliminating the need for complex welding processes and advanced equipment, manufacturing costs are reduced without compromising on quality or performance. Furthermore, the modular design enables efficient use of materials and standardized components, further driving down production costs and making the frame more affordable for consumers.

[0081] In addition to cost savings, the modular frame also contributes to environmental sustainability. The reduction in welding processes and associated energy consumption leads to lower carbon emissions during manufacturing. Furthermore, the modular design facilitates efficient packaging and shipping, reducing the carbon footprint associated with transportation and logistics.

[0082] Safety and durability are paramount considerations in the design and construction of the modular frame. Each component undergoes rigorous testing to ensure compliance with industry safety standards and regulations. Advanced manufacturing techniques, including heat treatment and hardening processes, areemployed to enhance the strength and durability of the frame. Additionally, adhesive bonding techniques are utilized to reinforce critical joints, ensuring structural integrity and longevity.

[0083] The modular frame incorporates several innovative features that may be eligible for patent protection. These features include the modular frame design itself, adhesive bonding methods for joining components, and the interchangeability of parts. Each of these features represents a unique contribution to the field of bicycle frame design and offers distinct advantages over conventional welded frames.

[0084] One embodiment of the present invention is to provide a modular assembly. The primary objective of the invention is to provide a modular frame for e-bikes and bicycles, wherein each part can be assembled solely by fastening using basic hand tools. This modular design enhances ease of assembly and maintenance, catering to a wide range of users.

[0085] Another key goal is to eliminate the need for large manufacturing and assembling facilities. By offering a modular frame that can be easily assembled without specialized equipment, the invention promotes accessibility and empowers individuals and small-scale manufacturers to enter the market.

[0086] The invention aims to offer interchangeable parts, allowing users to customize their e-bikes and bicycles according to their preferences and requirements. This flexibility not only enhances user satisfaction but also expands the range of available options in the market.

[0087] The invention simplifies shipping and storage logistics by allowing the frame to be easily disassembled into compact components. This minimizes packaging volume and storage space requirements, resulting in significant cost savings throughout the supply chain.

[0088] An important objective is to reduce the overall carbon footprint associated with the manufacturing and logistics of e-bikes and bicycles. By minimizing the need forlarge-scale production facilities and optimizing packaging and transportation, the invention contributes to environmental sustainability.

[0089] The invention seeks to simplify maintenance and repair processes by providing easily replaceable components. By reducing downtime and costs associated with repairs, the invention enhances the overall user experience and prolongs the lifespan of e-bikes and bicycles.

[0090] The invention aims to promote a do-it-yourself (DIY) culture by offering e-bike and bicycle frames in modular kits. Empowering users to assemble and customize their own vehicles fosters creativity, innovation, and a deeper connection with their mode of transportation.

[0091] Although the preferred embodiment as well as the construction and use have been specifically described, it should be understood that variations in the preferred embodiment could be achieved by a person skilled in the art without departing from the spirit of the invention. The invention has been described with reference to specific embodiments which are merely illustrative and not intended to limit the scope of the invention as defined in the claims.

Claims

CLAIMSWe Claim:

1. A modular frame for e-bike and bicycle, comprising: a head tube, wherein the head tube is male mating features to connect with corresponding features of the top tube and down tube modules by axial bolting; a top tube module, wherein the top tube comprises Bl, B2, and B3, wherein Bl is an extruded and hardened Aluminum section, whereas B2 and B3 are solid parts with female mating features to connect with corresponding features of the head tube and seat tube module by transverse bolting, which can be permanently joined by gluing (adhesive bonding); a down tube module, wherein the down tube consists of Cl, C2, and C3; wherein Cl is an extruded and hardened Aluminum section, whereas C2 and C3 are solid parts with female mating features to connect with corresponding features of the head tube and seat tube module by transverse bolting which can be permanently joined by gluing; a seat tube module, wherein the seat tube includes DI, D2, and D3, wherein DI is an extruded and hardened Aluminum section, D2 is a forged solid Aluminum body, and D3 is a gravity die-casted Aluminum body, wherein D2 and D3 have male mating features to connect with corresponding features of the top tube module, down tube module, seat stay modules (left and right), and chain stay modules (left and right), wherein this member acts as the central part of the modular frame, wherein the components are permanently joined by welding;a seat stay module - right, wherein the seat stay module (Member E), which comprises El, E2, E3, and E4, wherein El is an extruded and hardened Aluminum section, whereas E2, E3, and E4 are solid parts, wherein E2 and E4 feature female mating features to connect with corresponding features of the seat tube module and chain stay modules, wherein E3 has a male feature to connect with the seat stay connector, wherein all connections are made by transverse bolting, and the components are permanently joined by gluing; a seat stay module - left, wherein the seat tube module- left seat stay module (Member F), which includes Fl, F2, F3, and F4, wherein Fl is an extruded and hardened Aluminum section, whereas F2, F3, and F4 are solid parts, wherein F2 and F4 feature female mating features to connect with corresponding features of the seat tube module and chain stay modules, wherein F3 has a male feature to connect with the seat stay connector, wherein all connections are made by transverse bolting, and the components are permanently joined by gluing; a chain stay module - right, wherein the chain stay module (Member H), which includes Hl, H2, and H3, wherein Hl is an extruded and hardened Aluminum section, whereas H2 and H3 are solid parts with female mating features to connect with corresponding features of the seat stay module and chain stay module by transverse bolting, wherein H2 also contains a male mating feature for connection with the chain stay connector. The components are permanently joined by gluing; a chain stay module - left, wherein the chain stay module- left which is an extruded and hardened Aluminum section with provisions to connect is connectable to chain stay module - right through the chain stay connector;a seat stay connector, wherein the seat stay connector is (Member I), which is an extruded and hardened Aluminum section with provisions to connect with the left and right seat stay modules. a chain stay connector; wherein the chain stay connector is (Member J), which is an extruded and hardened Aluminum section with provisions to connect with the left and right chain stay modules; wherein the permanent or temporary joining of all members with each other, or components within a member module can be done through welding, gluing, fastening (screwing, bolting, riveting), etc.

2. The modular frame for e-bike and bicycle as claimed in claim 1, wherein the assembled head Tube and Top Tube Modules comprises Member A (head tube), B (top tube module), and C (down tube module) and connected as illustrated in Figure 13 using axial bolting through the head tube slot.

3. The modular frame for e-bike and bicycle as claimed in claim 1, wherein a main Frame structure to Seat Tube Module comprises steps of: a) Take the assembly from step 1; and b) Connect it to Member D (seat tube module) using transverse bolting with bolts and barrel nuts, referring to Figure 14;4. The modular frame for e-bike and bicycle as claimed in claim 1, wherein Assemble Chain Stay Modules comprises the steps of: a) Take Members G (chain stay module - right), H (chain stay module - left), and J (chain stay connector); and b) Connect them as depicted in Figure 15 using transverse bolting.

5. The modular frame for e-bike and bicycle as claimed in claim 1, wherein an attached main frame structure to chain stay modules comprises the steps of:a) Take the assemblies from steps 2 and 3; and b) Connect Member D with Members G and H, referring to Figure 16.

6. The modular frame for e-bike and bicycle as claimed in claim 1, wherein an assemblyof Seat stay modules comprises the steps of: a) Take Members E (seat stay module - right), F (seat stay module - left), and I(seat stay connector); and b) Connect them according to the configuration shown in Figure 17 using transverse bolting.

7. The modular frame for e-bike and bicycle as claimed in claim 1, wherein a completeframe assembly comprises the steps of: a) Take the assemblies from steps 4 and 5; b) Refer to Figure 18 and connect Members E and F with Members D, G, and H;and a) After assembling all frame members, use a torque wrench to tighten each bolt to the specified torque mentioned in the assembly instructions or guide.

8. The modular frame for e-bike and bicycle as claimed in claim 1, wherein any combination of said frame members i.e. a. Combination of Head Tube, Top Tube Module and Down Tube Module; b. Combination of Head Tube, Top Tube Module, Down Tube Module and SeatTube Module; c. Combination of Seat Stay Module - Left, Seat Stay Module - Right and SeatStay Connector; d. Combination of Chain Stay Module - Left, Chain Stay Module - Right and Chain Stay Connector; and e. Any other combination of two or more parts mentioned in the listof partsMembers A to J;Wherein it may be permanently or temporarily pre-assembled into a new variant of frame member before being joined with other frame members; wherein if two or more members are manufactured as a single part (not joined, but madeas one), it is covered in the scope.

9. The modular frame for e-bike and bicycle as claimed in claim 1, wherein all sizes of the modular frame - ranging from S (16"), M (17"), and L (18.25") for a conventional diamond frame and step-through frames as well as other size variations are included within the scope.

10. The modular frame for e-bike and bicycle as claimed in claim 1, wherein conversion ofmodular e-bike or bicycle to a cargo bike can be occur replacing the head tube with another attachment for cargo cart or replacing the rear parts (seat stays or chain stays) to attach a cart at the back.

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