Description:TECHNICAL FIELD
[0001] The present technology relates to the field of seating units, and more particularly, but not by way of limiting, the present technology relates to a modular chair designed to provide flexible and active seating, promoting comfort, circulation, and active learning for students.
BACKGROUND
[0002] Seating systems in educational environments, such as classrooms, play a critical role in student comfort, focus, and engagement. Traditional school chairs are often rigid and static, designed with a one-size-fits-all approach that fails to accommodate the diverse needs of students. These chairs typically limit students' ability to move freely, which can lead to discomfort, poor circulation, and restlessness. Over time, such discomfort can result in reduced attention spans and hinder the learning process. In active learning environments, where students are encouraged to engage in collaborative activities and frequent movement, the lack of flexibility in traditional chairs becomes a significant drawback. Furthermore, the absence of ergonomic features, such as breathable materials or adjustable components, exacerbates the problem, making prolonged seating uncomfortable and potentially detrimental to students' physical well-being.
[0003] Current school chairs are typically designed with fixed structures, offering limited flexibility in seating positions. These chairs are often made from rigid materials that do not adapt to the natural movements of students, such as leaning, shifting, or stretching. While some advancements have been made to address these issues, such as the introduction of slightly contoured seats or padded backrests, these improvements are often superficial and do not fundamentally address the need for active seating. Additionally, traditional chairs are not optimized for durability in high-use environments like schools, where they are subjected to significant wear and tear. Many chairs are constructed with materials that degrade quickly under frequent use, leading to frequent repairs or replacements. The lack of modularity in traditional chairs further limits their adaptability to different classroom setups or storage requirements, making them inefficient for modern educational spaces.
[0004] Despite these advancements, existing chairs continue to face significant limitations. For instance, chairs with improved ergonomics often come at a higher cost, making them inaccessible for many schools. Moreover, even chairs with enhanced durability often lack features that promote cognitive engagement or personalization, which are critical for fostering a positive learning environment. Students often perceive traditional chairs as impersonal and uncomfortable, which can negatively impact their learning experience. The uniform designs of these chairs do not account for individual preferences or the need for a sense of ownership in the learning environment. Furthermore, the lack of breathability in many chair designs can lead to discomfort during prolonged use, particularly in warmer climates. These limitations highlight the ongoing need for a more innovative and integrated seating solution that addresses the challenges of comfort, flexibility, durability, and cognitive engagement in educational environments.
[0005] These challenges underscore the need for a seating solution that not only addresses the physical discomfort associated with traditional chairs but also enhances the overall learning experience. A chair that promotes active seating, adaptability, and student well-being would represent a significant advancement in educational furniture design. The present invention is directed to overcome one or more of these limitations by providing a modular chair that meets the evolving needs of modern educational environments.
SUMMARY
[0006] This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
[0007] The present disclosure relates to a modular chair for flexible and active seating. In one aspect of the present disclosure, the modular chair includes a polymer shell having a seat and a backrest. The polymer shell includes fingerprint-patterned perforations for air ventilation. The modular chair further includes a base frame having a four-leg structure made of mild steel pipe, configured to support the polymer shell. Additionally, the modular chair includes a backrest extension integrated into the base frame, where the backrest extension is bolted to the backrest of the polymer shell using one or more Allen bolts. The modular chair also includes half-round nylon endcaps attached to the bottom of each leg of the base frame to facilitate movement and stability during seating.
[0008] In accordance with an embodiment, the mild steel pipe of the base frame has a diameter of 25 millimetres (mm).
[0009] In accordance with an embodiment, the polymer shell is made of Polypropylene (PPGF) with 30% glass fiber.
[0010] In accordance with an embodiment, the polymer shell further includes a back cover that snaps onto the backrest to protect the backrest extension.
[0011] In accordance with an embodiment, the base frame is configured to allow stacking of up to four chairs.
[0012] In accordance with an embodiment, the modular chair is configured to support a weight of up to 150 kilograms (kg).
[0013] In accordance with an embodiment, the modular chair allows for multiple seating positions, including straddling, sideways seating, and straight flexible seating.
[0014] In accordance with an embodiment, the seat has a height in a range of 420 millimetres (mm) to 450mm from the base.
[0015] In accordance with an embodiment, the polymer shell is manufactured using an injection moulding process.
[0016] In another aspect of the present disclosure, a modular chair with cantilever support for flexible and active seating is disclosed. The modular chair includes a polymer shell including a seat and a backrest, wherein the polymer shell includes fingerprint-patterned perforations for air ventilation. The modular chair further includes a cantilever base frame including a mild steel pipe and a lumber frame, where the lumber frame has a diameter of 16mm and is welded to the base frame for backrest support. The backrest shell is fixed to the lumber frame using a 2 mm plate. Additionally, the modular chair includes a backrest extension integrated into the base frame, where the backrest extension is bolted to the backrest of the polymer shell using one or more Allen bolts. The modular chair also includes plastic glides attached to the bottom of the base frame to facilitate smooth movement and stability during flexible seating.
[0017] In accordance with an embodiment, the mild steel pipe of the cantilever base frame has a diameter of 25mm.
[0018] In accordance with an embodiment, the polymer shell is made of Polypropylene (PPGF) with 30% glass fiber.
[0019] In accordance with an embodiment, the polymer shell further includes a back cover that snaps onto the backrest to protect the backrest extension.
[0020] In accordance with an embodiment, the base frame is configured to allow stacking of up to four chairs.
[0021] In accordance with an embodiment, the chair is configured to support a weight of up to 150 kg.
[0022] In accordance with an embodiment, the chair allows for multiple seating positions, including straddling, sideways seating, and straight flexi seating.
[0023] In accordance with an embodiment, the seat has a height of 350mm, 380mm, 420mm, or 450mm from the base.
[0024] In accordance with another embodiment, a swivel chair for flexible and active seating with mobility is disclosed. The swivel chair includes a polymer shell including a seat and a backrest. The polymer shell includes fingerprint-patterned perforations for air ventilation. The swivel chair further includes a swivel star base frame including wheels. The swivel star base frame allows for mobility of the chair. Additionally, the swivel chair includes a height-adjustable cylinder connected to the swivel star base frame where the cylinder allows for adjustable seat height. The swivel chair also includes a backrest extension integrated into the swivel star base frame. The backrest extension is bolted to the backrest of the polymer shell using one or more Allen bolts.
[0025] In accordance with an embodiment, the polymer shell is made of Polypropylene (PPGF) with 30% glass fiber.
[0026] In accordance with an embodiment, the polymer shell further includes a back cover that snaps onto the backrest to protect the backrest extension.
[0027] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The above-mentioned implementations are further described herein with reference to the accompanying figures. It should be noted that the description and figures relate to exemplary implementations and should not be construed as a limitation to the present disclosure. It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalent thereof.
[0029] FIG. 1 depicts a perspective view of a modular chair in an upright position, in accordance with an embodiment of the present invention.
[0030] FIG. 2 depicts an assembled view of the modular chair in an upright position, in accordance with an embodiment of the present invention.
[0031] FIG. 3 depicts a perspective view of the modular chair with a cantilever base frame 302, in accordance with some embodiments of the present invention.
[0032] FIG. 4 depicts an assembled view of the modular chair with a cantilever base frame 302 in an upright position, in accordance with some embodiments of the present invention.
[0033] FIG. 5 depicts a perspective view of the modular chair with a swivel star base frame 502, in accordance with some embodiments of the present invention.
[0034] FIG. 6 depicts a method for assembling the modular chair for flexible and active seating, illustrated via a flowchart, in accordance with some embodiments of the present invention.
DETAILED DESCRIPTION
[0035] In the following descriptions, certain specific details are set forth in order to provide a thorough understanding of various disclosed embodiments. However, one skilled in the relevant art will recognize that embodiments maybe practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures of methods associated with the modular seating unit system have not been shown or described in detail to avoid unnecessarily obscuring descriptions of the embodiments.
[0036] Exemplary embodiments are described with reference to the accompanying drawings. Wherever convenient, the same reference numbers are used throughout the drawings to refer to the same or like parts. While examples and features of disclosed principles are described herein, modifications, adaptations, and other implementations are possible without departing from the spirit and scope of the disclosed embodiments. It is intended that the following detailed description be considered as exemplary only, with the true scope and spirit being indicated by the following claims.
[0037] In the specification, the term “comprising” shall be understood to have a broad meaning similar to the term “including” and will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. This definition also applies to variations on the term “comprising” such as “comprise” and “comprises.”
[0038] In the specification, the term “engage” and its variants including “engagement,” “engages,” “engaging,” and “engaged” as used herein are to be interpreted to include engagement by touching, rubbing, or abutting, including engagement in one or more of an axial, radial, tangential, and circumferential direction, and includes engagement through an intermediary such as a component positioned or sandwiched between the counter face and head of the fastener.
[0039] Throughout the specification and claims, the following terms take the meanings explicitly associated herein, unless the context clearly dictates otherwise. The phrase “in one embodiment” as used herein does not necessarily refer to the same embodiment, though it may. Furthermore, the phrase “in another embodiment” as used herein does not necessarily refer to a different embodiment, although it may. Thus, as described below, various embodiments of the invention may be readily combined, without departing from the scope or spirit of the invention.
[0040] Certain terminology used in the description is for convenience in reference only and shall not be limiting. For example, up, down, front, back, right, and left refer to the disclosed subject matter as oriented in the view being referred to. The words, “inwardly,” “inner,” “outwardly,” and “outer” refer to directions toward and away from, respectively, the geometric center of the aspect being described and designated parts thereof. The terminology will include the words specifically mentioned, derivatives thereof, and words of similar meaning. Like reference numbers denote like features, components, or elements throughout the various embodiments.
[0041] In addition, as used herein, the term “or” is an inclusive “or” operator and is equivalent to the term “and/or,” unless the context clearly dictates otherwise. The term “based on” is not exclusive and allows for being based on additional factors not described, unless the context clearly dictates otherwise. In addition, throughout the specification, the meaning of “a,” “an,” and “the” includes plural references. The meaning of “in” includes “in” and “on.”
[0042] Features that are described in the context of an embodiment may correspondingly be applicable to the same or similar features in other embodiments. Features that are described in the context of an embodiment may correspondingly be applicable to other embodiments, even if not explicitly described in these other embodiments. Furthermore, additions and/or combinations and/or alternatives as described for a feature in the context of an embodiment may correspondingly be applicable to the same or similar feature in other embodiments.
[0043] To achieve the stated features, advantages, and objects, the present invention is directed to a modular chair configured to provide flexible and active seating, particularly suited for educational environments. The modular chair is designed to address the challenges associated with prolonged seating, such as discomfort, restricted movement, and poor circulation, by incorporating ergonomic features, breathable materials, and a robust structure.
[0044] Throughout the specification, the term “Modular Chair” may refer to a chair designed for flexible and active seating, comprising a polymer shell, a base frame, and various ergonomic features. The chair is particularly suited for environments where comfort, mobility, and durability are essential.
[0045] Throughout the specification, the term “Polymer Shell” may refer to the outer structure of the chair, made of Polypropylene with 30% glass fiber (PPGF 30%), which provides flexibility and strength. The polymer shell includes fingerprint-patterned perforations for air ventilation and user comfort.
[0046] Throughout the specification, the term “Base Frame” may refer to the structural support of the chair, made of 25mm diameter mild steel pipe, providing stability and durability. The base frame may include a four-leg design or a cantilever design, depending on the embodiment.
[0047] Throughout the specification, the term “Backrest Extension” may refer to a structural component integrated into the base frame, which supports the backrest and is bolted to the polymer shell using Allen bolts.
[0048] Throughout the specification, the term “Endcaps” may refer to half-round nylon components attached to the bottom of each leg of the base frame, facilitating smooth movement and preventing abrasion.
[0049] Throughout the specification, the term “Back Cover” may refer to a snap-on component that protects the bolting fitment and provides a finished appearance. The back cover may also serve as a branding element.
[0050] FIG. 1 depicts a perspective view 100 of a modular chair 102 in an upright position, in accordance with an embodiment of the present invention. The modular chair 102 includes a polymer shell 104, a seat 106, a backseat 108, a base frame 110. Additionally, the modular chair 102 includes a backrest extension 112, one or more bolts 114, endcaps 116, and back cover 118. Each of the above-mentioned components of the modular chair 102 is described in detail below.
[0051] In some embodiments, the polymer shell 104 is configured to provide a comfortable and flexible seating surface to a user of the modular chair 102. In an example, the user may be a student who requires ergonomic support during long hours of study. In another example, the user may be an office worker who needs a durable and adaptable chair for daily use. In yet another example, the user may be a healthcare professional in a clinical setting, where comfort and hygiene are essential considerations.
[0052] The polymer shell 104 may be integrated with the modular chair 102 using various fastening methods to ensure stability and ease of assembly of the modular chair 102. For instance, the polymer shell 104 may be attached to the modular chair 102 using screws and metal inserts, providing a secure connection while allowing for disassembly if needed. In another example, the polymer shell 104 may be integrated using snap-fit connections, enabling a tool-free assembly process that enhances user convenience. Alternatively, adhesive bonding may be employed to create a seamless integration, ensuring a smooth and aesthetically pleasing design.
[0053] The polymer shell 104 may include the seat 106 and the backrest 108, forming a single, cohesive structure that enhances user comfort. The polymer shell 104 may be made of any of, but is not limited to, Polypropylene (PPGF) with 30% glass fiber, which promotes flexibility while maintaining maximum strength required for durability of the modular chair 102. This material composition allows the chair to withstand repeated use in high-traffic environments such as classrooms, offices, and waiting areas while ensuring long-term resilience.
[0054] Additionally, the polymer shell 104 may include fingerprint-patterned perforations, which enhance air ventilation through the modular chair 102 and provide a unique identity for the user. The fingerprint-patterned perforations may be strategically aligned to ensure breathability, preventing discomfort during prolonged seating. In an example, the fingerprint pattern may serve a cognitive purpose, helping students perceive the modular chair 102 as a personalized space for learning. In an example scenario, a student sitting on the modular chair 102 may feel a sense of ownership due to a unique fingerprint pattern, enhancing engagement and focus of the student.
[0055] In some embodiments, the base frame 110 is designed to provide structural support for the modular chair 102, ensuring stability and longevity in various usage scenarios. In an example, the base frame 110 may be used in a university lecture hall, where durability is essential to withstand frequent use by students. In another example, the base frame 110 may be found in a coworking space, where lightweight yet sturdy chairs are needed to facilitate flexible seating arrangements. Additionally, the base frame 110 may be ideal for cafeterias or conference rooms, where chairs must be easily movable and reconfigurable to accommodate different seating layouts.
[0056] The base frame 110 may be integrated with the modular chair 102 using various attachment methods to ensure a secure and robust connection. For example, the base frame 110 may be welded directly to support brackets embedded in the polymer shell 104, creating a permanent and high-strength bond. In another example, the base frame 110 may be attached using threaded inserts and bolts, allowing for quick assembly and disassembly as needed. Additionally, rubber gaskets or washers may be incorporated at the connection points to reduce vibrations and enhance user comfort.
[0057] The base frame 110 may be made of 25mm diameter mild steel pipe, which provides an optimal balance between strength and weight, ensuring the modular chair 102 remains both durable and easy to transport. The base frame 110 may include a four-leg design, which ensures stability and prevents tipping, making the modular chair 102 suitable for environments that require reliable seating solutions. Additionally, the base frame 110 may include the backrest extension 112, which supports the backrest 108 and is bolted to the polymer shell 104 using the bolts 114. In an embodiment, the bolts 114 may be Allen bolts. The above-mentioned integration may improve the overall rigidity of the modular chair 102 while allowing for easy maintenance or replacement of components when necessary.
[0058] Furthermore, the base frame 110 may be designed to allow stacking of up to four chairs, making the modular chair 102 highly space-efficient for storage and transportation. The base frame 110 may particularly be beneficial in environments where space optimization is critical. For example, in classrooms, the ability to stack multiple chairs allows for quick reconfiguration of seating arrangements. In another example, event venues and conference centers may benefit from the stacking capability, enabling efficient storage between events. Additionally, in corporate training rooms, the modular chair 102 design may allow for rapid setup and breakdown, improving logistical efficiency.
[0059] In some embodiments, the design of the modular chair 102 may ensure that the modular chair 102 can withstand high-stress conditions, such as frequent movement and varying seating positions, without compromising structural integrity. In an example scenario, a student leaning back on the backrest 108 may experience enhanced support due to the backrest extension 112, ensuring comfort during prolonged use.
[0060] In some embodiments, the endcaps 116 are attached to the bottom of each leg of the base frame 110. The endcaps 116 may be protective and functional component that enhance the overall usability of the modular chair 102. The endcaps 116 may be made of any of, but is not limited to, half-round nylon which is a material chosen for durability, impact resistance, and minimize friction during movement of the modular chair 102. By facilitating smooth movement and preventing abrasion, the endcaps 116 contribute to the longevity of both the modular chair 102 and the flooring surfaces the modular chair 102 interacts with.
[0061] The endcaps 116 may be particularly used in environments where chairs are frequently moved. In an example, a teacher rearranging a classroom layout can easily glide the chairs without causing scuff marks or scratches on tiled, wooden, or vinyl floors. In another example, office workers in a collaborative workspace may frequently reposition their chairs, and the endcaps 116 help ensure that movement remains smooth and quiet, reducing noise disruptions in shared environments. Additionally, in conference rooms or event halls, where seating arrangements are often changed, the endcaps 116 make the process more efficient by reducing resistance and floor damage.
[0062] The endcaps 116 may be integrated with the base frame 110 using a press-fit design, ensuring a secure attachment without the need for additional fasteners. In another example, the endcaps 116 may be secured using friction-lock mechanisms or adhesive bonding, providing a firm grip that prevents them from detaching during extended use. Additionally, the endcaps 116 may feature a slightly rounded profile to distribute weight evenly across different floor surfaces, preventing the legs from sinking into soft materials such as carpets while maintaining stability on harder surfaces like concrete or laminate.
[0063] Furthermore, the endcaps 116 contribute to the ergonomic design of the modular chair 102. The shock-absorbing properties of the endcaps 116 may help reduce minor vibrations when the modular chair 102 is in use, improving user comfort. In high-traffic areas such but not limited to libraries, cafeterias, or training rooms, the endcaps 116 may ensure a quieter and smoother seating experience. By reducing wear and tear on both the modular chair 102 and the floor, the endcaps 116 play a vital role in maintaining the durability and preserving the integrity of various flooring materials over time.
[0064] In some embodiments, the back cover 118 is a snap-on component that protects the bolting fitment of the modular chair 102 and provides a finished appearance. The back cover 118 may be designed for easy installation and removal, ensuring that the bolting fitment remains secure and tamper-proof. The back cover 118 may not only enhance the modular chair 102 appeal but also serve a functional purpose by safeguarding the modular chair 102 from damage or tampering. In an example, the back cover 118 may include any of, but is not limited to, branding elements, adding a professional touch to the modular chair 102.
[0065] In some embodiments, the modular chair 102 is designed to support various seating positions, including but is not limited to, straddling, sideways seating, and straight flexible seating. The modular chair 102 may be capable of supporting a weight of up to 150 kg, making the modular chair 102 suitable for users of different sizes. The PPGF 30% material and the robust base frame 110 may ensure that the modular chair 102 can withstand high-stress conditions without breaking. In an example scenario, a student may sit in a traditional upright position, straddle the modular chair 102, or sit sideways, depending on comfort and activity. Additionally, the fingerprint-patterned perforations on the polymer shell 104 may enhance breathability, ensuring comfort during prolonged use. The base frame 110 may provide stability, while the endcaps 116 may facilitate smooth movement on the classroom floor. The combination of features ensures that the modular chair 102 adapts to the student’s needs, promoting active learning and engagement.
[0066] FIG. 2 depicts an assembled view 200 of the modular chair 102 in an upright position, in accordance with an embodiment of the present invention. The assembled view 200 illustrates the integration of the modular chair 102 components, including the polymer shell 104, the seat 106, the backrest 108, the base frame 110, the backrest extension 112, the bolts 114 (Allen bolts), the endcaps 116, and the back cover 118. FIG. 2 is explained in conjunction with description of previous figures.
[0067] As explained, the polymer shell 104 may include the seat 106 and the backrest 108, forming a single, cohesive structure that enhances user comfort. The polymer shell 104 may be made of, but is not limited to, Polypropylene (PPGF) with 30% glass fiber, which promotes flexibility while maintaining maximum strength required for durability of the modular chair 102. The mentioned material composition allows the modular chair 102 to withstand repeated use in high-traffic environments such as classrooms, offices, and waiting areas while ensuring long-term resilience. Additionally, the polymer shell 104 may include fingerprint-patterned perforations, which enhance air ventilation through the modular chair 102 and provide a unique identity for the user.
[0068] In some embodiments, the base frame 110 is designed to provide structural support for the modular chair 102, ensuring stability and longevity in various usage scenarios. In an example, the base frame 110 may be welded directly to support brackets embedded in the polymer shell 104, creating a permanent and high-strength bond. In another example, the base frame 110 may be attached using threaded inserts and bolts, allowing for quick assembly and disassembly as needed. The base frame 110 may be made of 25mm diameter mild steel pipe, which provides an optimal balance between strength and weight, ensuring the modular chair 102 remains both durable and easy to transport. The base frame 110 may include a four-leg design, which ensures stability and prevents tipping.
[0069] In some embodiments, the endcaps 116 are attached to the bottom of each leg of the base frame 110. The endcaps 116 may be protective and functional components that enhance the overall usability of the modular chair 102. The endcaps 116 may be made of, but are not limited to, half-round nylon, which is a material chosen for durability, impact resistance, and minimizing friction during movement of the modular chair 102. The endcaps 116 may be integrated with the base frame 110 using a press-fit design, ensuring a secure attachment without the need for additional fasteners.
[0070] In some embodiments, the back cover 118 is a snap-on component that protects the bolting fitment of the modular chair 102 and provides a finished appearance. The back cover 118 may be designed for easy installation and removal, ensuring that the bolting fitment remains secure and tamper-proof. The back cover 118 may not only enhance the modular chair 102 appeal but also serve a functional purpose by safeguarding the modular chair 102 from damage or tampering. In an example, the back cover 118 may include, but is not limited to, branding elements, adding a professional touch to the modular chair 102.
[0071] In some embodiments, the assembled view 200 of the modular chair 102 demonstrates how the components work together to provide a functional and ergonomic seating solution. The polymer shell 104, with the integrated seat 106 and backrest 108, ensures user comfort and flexibility. The base frame 110, with its four-leg design and backrest extension 112, provides structural stability and support. The endcaps 116 facilitate smooth movement and protect flooring surfaces, while the back cover 118 enhances the modular chair 102’s aesthetic appeal and protects its internal components. In an example scenario, the assembled modular chair 102 may be used in a classroom setting, where students can easily move the chair to different locations, adjust their seating positions, and experience enhanced comfort during prolonged use. The combination of features ensures that the modular chair 102 adapts to the user’s needs, promoting active learning and engagement.
[0072] In some embodiments, the modular chair 102 is designed to support various seating positions, including but not limited to, straddling, sideways seating, and straight flexible seating. The modular chair 102 may be capable of supporting a weight of up to 150 kg, making the modular chair 102 suitable for users of different sizes. The PPGF 30% material and robust base frame 110 ensure that the modular chair 102 can withstand high-stress conditions without breaking. In an example scenario, a student may sit in a traditional upright position, straddle the modular chair 102, or sit sideways, depending on comfort and activity. Additionally, the fingerprint-patterned perforations on the polymer shell 104 may enhance breathability, ensuring comfort during prolonged use. The base frame 110 may provide stability, while the endcaps 116 may facilitate smooth movement on the classroom floor. The combination of features ensures that the modular chair 102 adapts to the student’s needs, promoting active learning and engagement.
[0073] FIG. 3 depicts a perspective view 300 of the modular chair 102 with a cantilever base frame 302, in accordance with some embodiments of the present invention. The modular chair 102 includes the polymer shell 104, the cantilever base frame 302, the lumber frame 304, and glides 306. Each of these components is described in detail below. FIG. 3 is explained in conjunction with description of previous figures.
[0074] In some embodiments, the cantilever base frame 302 may be designed to provide structural support for the modular chair 102 to ensure stability and longevity in various usage scenarios. The cantilever base frame 302 may be integrated with the modular chair 102 using various attachment methods to ensure a secure and robust connection. For example, the cantilever base frame 302 may be made of 25mm diameter mild steel pipe and includes a front cantilever with a 3 mm base plate for the assembly of the polymer shell 104.
[0075] Additionally, the cantilever base frame 302 may be bolted to the polymer shell 104 using the bolts 114 (Allen bolts), ensuring a secure and stable connection. The cantilever design of the cantilever base frame 302 provides additional flexibility, allowing for different seating positions and enhancing the modular chair 102 adaptability to user movements. In an example scenario, the cantilever base frame 302 may allow a user to sit in unconventional positions, such as straddling or leaning sideways, without compromising stability or comfort.
[0076] In some embodiments, the lumber frame 304 is welded to the cantilever base frame 302 and provides support for the backrest 108. The lumber frame 304 may be made of 16mm diameter mild steel pipe and includes a 2 mm plate for the fixing of the backrest 108 using the bolts 114 (Allen bolts). The design may allow that the modular chair 102 to withstand high-stress conditions, such as frequent movement and varying seating positions, without compromising structural integrity of the modular chair 102. In an example, the lumber frame 304 may provide enhanced support for the backrest 108, ensuring comfort during prolonged use.
[0077] In some embodiments, the glides 306 are attached to the bottom of the cantilever base frame 302. The glides 306 may be protective and functional components that enhance the overall usability of the modular chair 102. The glides 306 may be made of, but are not limited to, half-round nylon, which is a material chosen for durability, impact resistance, and minimizing friction during movement of the modular chair 102. The glides 306 may be integrated with the cantilever base frame 302 using a press-fit design, ensuring a secure attachment without the need for additional fasteners.
[0078] In another example, the glides 306 may be secured using friction-lock mechanisms or adhesive bonding, providing a firm grip that prevents the glides 306 from detaching during extended use of the modular chair 102. Additionally, the glides 306 may feature a slightly rounded profile to distribute weight evenly across different floor surfaces, preventing the legs from sinking into soft materials such as carpets while maintaining stability on harder surfaces like concrete or laminate. In an example scenario, a teacher rearranging a classroom layout may easily glide the modular chair 102 without causing scuff marks or scratches on tiled, wooden, or vinyl floors. Further, the glides 306 contribute to the ergonomic design of the modular chair 102. The shock-absorbing properties of the glides 306 may help reduce minor vibrations when the modular chair 102 is in use, improving user comfort.
[0079] In some embodiments, the back cover 118 is a snap-on component that protects a bolting fitment of the modular chair 102 and provides a finished appearance. The back cover 118 may be designed for easy installation and removal, ensuring that the bolting fitment remains secure and tamper-proof. In some embodiments, the modular chair 102 is assembled through a series of carefully designed steps to ensure durability, functionality, and ease of installation. The process of assembling may begin with the manufacturing of the polymer shell 104, which includes the seat 106, the backrest 108, and the back cover 118. The components are produced using an injection molding process, ensuring precision and consistency in construction.
[0080] Once manufactured, the seat 106 and the backrest 108 are securely bolted to the cantilever base frame 302 and the lumber frame 304 using the bolts 114 (Allen bolts). The bolting step ensures a robust and stable connection between the polymer shell 104 and the base frame 302, allowing the modular chair 102 to withstand high-stress conditions. Following this, the back cover 118 may be snapped onto the backrest 108, providing protection for the bolting fitment and enhancing the modular chair 102 appeal. Finally, the glides 306 are fixed to the bottom of the cantilever base frame 302 using, but not limited to, self-tapping screws. The glides 306 facilitate smooth movement and prevent abrasion, ensuring that the modular chair 102 remains stable and easy to reposition on various surfaces. The streamlined assembly process not only enhances the modular chair 102 durability but also simplifies installation, making the modular chair 102 ideal for environments where quick and efficient setup is required.
[0081] FIG. 4 depicts an assembled view 400 of the modular chair 102 with a cantilever base frame 302 in an upright position, in accordance with some embodiments of the present invention. The assembled view 400 illustrates the integration of the modular chair 102 components, including the polymer shell 104, the cantilever base frame 302, the lumber frame 304, the glides 306, and the back cover 118. FIG. 4 is explained in conjunction with description of previous figures.
[0082] As explained above in FIG. 3, the polymer shell 104, comprising the seat 106 and the backrest 108, is securely attached to the cantilever base frame 302 and the lumber frame 304 using the bolts 114 (Allen bolts). The polymer shell 104 is made of PPGF 30% material, which combines flexibility with strength, ensuring durability while allowing for active seating positions. The fingerprint-patterned perforations on the polymer shell 104 enhance air ventilation, providing breathability and comfort during prolonged use. In an example scenario, a student sitting on the modular chair 102 may feel a sense of ownership due to the unique fingerprint pattern, enhancing engagement and focus.
[0083] In some embodiments, the cantilever base frame 302, constructed from 25mm diameter mild steel pipe, provides robust structural support. The cantilever base frame 302 includes a front cantilever with a 3 mm base plate for the assembly of the polymer shell 104. The cantilever design provides additional flexibility, allowing for different seating positions and enhancing the modular chair 102 adaptability to user movements. The lumber frame 304, welded to the cantilever base frame 302, supports the backrest 108 and is bolted to the polymer shell 104 using the bolts 114 (Allen bolts). The design of the modular chair 102 may allow that the modular chair 102 can withstand high-stress conditions, such as frequent movement and varying seating positions, without compromising structural integrity.
[0084] In some embodiments, the glides 306 may be attached to the bottom of the cantilever base frame 302. The glides 306 may be designed to facilitate smooth movement and prevent abrasion, enhancing the modular chair 102 stability on various surfaces. The glides 306 may be made of, but are not limited to, polyurethane or rubber, which are materials chosen for durability, impact resistance, and minimizing friction during movement. In an example scenario, a teacher rearranging a classroom layout may easily glide the chairs without causing scuff marks or scratches on tiled, wooden, or vinyl floors.
[0085] In some embodiments, the back cover 118 may be snapped onto the backrest 108, protecting the bolting fitment and providing a finished appearance. The back cover 118 may be designed for easy installation and removal, ensuring that the bolting fitment remains secure and tamper-proof. The back cover 118 may not only enhance the modular chair 102 aesthetic appeal but also serve a functional purpose by safeguarding the assembly from damage or tampering.
[0086] In some embodiments, the assembled view 400 of the modular chair 102 demonstrates how the components work together to provide a functional and ergonomic seating solution. The polymer shell 104, with the integrated seat 106 and the backrest 108, ensures user comfort and flexibility. The cantilever base frame 302 and the lumber frame 304 provide structural stability and support, while the glides 306 facilitate smooth movement and protect flooring surfaces. The back cover 118 may improve the modular chair 102 aesthetic appeal and protects internal components. The combination of features ensures that the modular chair 102 adapts to the user needs, promoting active learning and engagement.
[0087] FIG. 5 depicts a perspective view 500 of the modular chair 102 with a swivel star base frame 502, in accordance with some embodiments of the present invention. FIG. 5 is explained in conjunction with description of previous figures. As explained earlier, the modular chair 102 includes a swivel star base frame 502, a height-adjustable cylinder 506, the polymer shell 104, and the backrest extension 112. Each of the above-mentioned components is described in detail below.
[0088] In some embodiments, the polymer shell 104 may include the seat 106 and the backrest 108, forming a single, cohesive structure that enhances user comfort. Additionally, the swivel star base frame 502 is designed to provide mobility and stability for the modular chair 102. The swivel star base frame 502 may include wheels 504, which allow the modular chair 102 to move freely across various surfaces. The swivel star base frame 502 may be integrated with the modular chair 102 using various attachment methods to ensure a secure and robust connection. For example, the swivel star base frame 502 may be bolted to the polymer shell 104 using the bolts 114 (Allen bolts), ensuring a secure and stable connection.
[0089] In another example, the swivel star base frame 502 may be connected to the polymer shell 104 using threaded inserts and fasteners, allowing for quick assembly and disassembly as needed. Additionally, rubber gaskets or washers may be incorporated at the connection points of the swivel star base frame 502 and the polymer shell 104 to reduce vibrations and enhance user comfort. The swivel star base frame 502 may be made of mild steel, providing an optimal balance between strength and weight, ensuring the modular chair 102 remains both durable and easy to maneuver. In an example scenario, the wheels 504 may enable a user to easily reposition the modular chair 102 in a classroom or workspace, enhancing flexibility and adaptability. Furthermore, the swivel star base frame 502 may include a five-arm design, which ensures stability and prevents tipping, making the modular chair 102 suitable for environments that require reliable seating solutions.
[0090] In some embodiments, the wheels 504 are attached to the bottom of the swivel star base frame 502. The wheels 504 may be made of, but are not limited to, polyurethane or rubber, which are materials chosen for durability, impact resistance, and minimizing friction during movement of the modular chair 102. The wheels 504 may be integrated with the swivel star base frame 502 using a press-fit design, ensuring a secure attachment without the need for additional fasteners.
[0091] In another example, the wheels 504 may be secured using friction-lock mechanisms or adhesive bonding, providing a firm grip that prevents them from detaching during extended use. Additionally, the wheels 504 may feature a swivel mechanism, allowing for 360-degree rotation and smooth movement across various floor surfaces, including carpets, tiles, and hardwood. In an example scenario, a teacher rearranging a classroom layout can easily glide the chairs without causing scuff marks or scratches on tiled, wooden, or vinyl floors. Further, the wheels 504 contribute to the ergonomic design of the modular chair 102. Further, the shock-absorbing properties of the wheels 504 may help reduce minor vibrations when the modular chair 102 is in use, improving user comfort. In high-traffic areas such as libraries, cafeterias, or training rooms, the wheels 504 may ensure a quieter and smoother seating experience. By reducing wear and tear on both the modular chair 102 and the floor, the wheels 504 play a vital role in maintaining the durability and preserving the integrity of various flooring materials over time.
[0092] In some embodiments, the height-adjustable cylinder 506 is integrated into the swivel star base frame 502 and allows the user to customize the seat height of the modular chair 102. The height-adjustable cylinder 506 may be integrated by using a threaded connection, which allows for precise height adjustments and ensures a secure fit between the cylinder 506 and the swivel star base frame 502. In another example, the height-adjustable cylinder 506 may be connected using a pneumatic mechanism, enabling smooth and effortless height adjustments with minimal user effort. The height-adjustable cylinder 506 may include a locking mechanism to secure the desired height, preventing unintended adjustments during use.
[0093] Additionally, the height-adjustable cylinder 506 may feature a gas spring or hydraulic system, which provides a smooth and reliable adjustment mechanism, ensuring that the modular chair 102 can accommodate users of different heights and preferences. In an example, the height-adjustable cylinder 506 may allow a teacher to adjust the seat height for different students, ensuring ergonomic support during prolonged use. Furthermore, the height-adjustable cylinder 506 may include a protective sleeve or cover, which safeguards the internal components from dust, debris, and wear, enhancing the longevity of the cylinder 506. In an example scenario, a user may adjust the seat height to align with a desk or table, ensuring proper posture and comfort during work or study.
[0094] In some embodiments, the backrest extension 112 is integrated into the swivel star base frame 502 and provides additional support for the backrest 108. The backrest extension 112 may be bolted to the backrest 108 using the bolts 114 (Allen bolts), ensuring a secure and stable connection. The design ensures that the modular chair 102 can withstand high-stress conditions, such as frequent movement and varying seating positions, without compromising structural integrity. In an example scenario, a user leaning back on the backrest 108 may experience enhanced support due to the backrest extension 112, ensuring comfort during prolonged use.
[0095] In some embodiments, the modular chair 102 with the swivel star base frame 502 is assembled through a series of carefully designed steps to ensure durability, functionality, and ease of installation. The assembling begins with the manufacturing of the polymer shell 104, which includes the seat 106, the backrest 108, and the back cover 118. The components are produced using an injection molding process, ensuring precision and consistency in construction. Once manufactured, the seat 106 and the backrest 108 are securely bolted to the swivel star base frame 502 and the backrest extension 112 using the bolts 114 (Allen bolts). The step ensures a robust and stable connection between the polymer shell 104 and the swivel star base frame 502, allowing the modular chair 102 to withstand high-stress conditions. Following this, the back cover 118 is snapped onto the backrest 108, providing protection for the bolting fitment and enhancing the modular chair 102 aesthetic appeal. Finally, the height-adjustable cylinder 506 is connected to the swivel star base frame 502, enabling users to adjust the seat height according to their preference.
[0096] FIG. 6 depicts a method 600 for assembling the modular chair 102 for flexible and active seating, illustrated via a flowchart, in accordance with some embodiments of the present invention. The method 600 is explained in conjunction with Figures 1-5 and provides a step-by-step guide to the assembly of the modular chair 102, including various components and functionalities. The method 600 may be implemented by an operator or an automated system, depending on the application and operational requirements.
[0097] The method 600, at step 602, includes forming a polymer shell 104 comprising a seat 106 and a backrest 108. The polymer shell 104 is made of Polypropylene (PPGF) with 30% glass fiber, which promotes flexibility while maintaining the strength required for durability. The polymer shell 104 may further include fingerprint-patterned perforations, which enhance air ventilation and provide a unique identity for the user. The fingerprint-patterned perforations are strategically aligned to ensure breathability, preventing discomfort during prolonged seating. The fingerprint pattern also serves a cognitive purpose, helping the user such as students perceive the modular chair 102 as a personalized space for learning.
[0098] The method 600, at step 604, may include constructing a base frame 110 including a four-leg structure made of 25mm diameter mild steel pipe. The base frame 110 provides robust structural support for the modular chair 102 and is designed to allow stacking of up to four chairs, making the modular chair 102 space-efficient for storage and transportation. The four-leg structure ensures stability and durability, enabling the modular chair 102 to withstand high-stress conditions.
[0099] The method 600, at step 606, includes integrating a backrest extension 112 into the base frame 110. The backrest extension 112 is fixed to the backrest 108 of the polymer shell 104 using the bolts 114 (Allen bolts), ensuring a secure and stable connection. The design of the modular chair 102 may ensure that the modular chair 102 withstands frequent movement and varying seating positions without compromising structural integrity.
[00100] The method 600, at step 608, includes attaching half-round nylon endcaps 116 to the bottom of each leg of the base frame 110. The half-round nylon endcaps 116 are designed to facilitate smooth movement and prevent abrasion, enhancing the modular chair 10 stability on various surfaces. The half-round nylon endcaps 116 are particularly beneficial in environments where chairs are frequently moved, such as classrooms, as the half-round nylon endcaps 116 reduce wear and tear on both the modular chair 102 and the floor.
[00101] The method 600, at step 610, includes snapping a back cover 118 onto the backrest 108 to protect the bolting fitment and provide a finished appearance. The back cover 118 is designed for easy installation and removal, ensuring that the bolting fitment remains secure and tamper-proof. The feature not only enhances the modular chair 102’s aesthetic appeal but also serves a functional purpose by safeguarding the assembly from damage or tampering.
[00102] In some embodiments, the modular chair 102 assembled using the method 600 is designed to support various seating positions, including but not limited to, straddling, sideways seating, and straight flexible seating. The modular chair 102 may be capable of supporting a weight of up to 150 kg, making the modular chair 102 suitable for users of different sizes. The PPGF 30% material and robust base frame 110 ensure that the modular chair 102 may withstand high-stress conditions without breaking. In an example scenario, a student may sit in a traditional upright position, straddle the modular chair 102, or sit sideways, depending on comfort and activity. Additionally, the fingerprint-patterned perforations on the polymer shell 104 may enhance breathability, ensuring comfort during prolonged use. The base frame 110 may provide stability, while the half-round nylon endcaps 116 may facilitate smooth movement on the classroom floor. The combination of features ensures that the modular chair 102 adapts to the student needs, promoting active learning and engagement.
[00103] By way of an example, consider a scenario where the modular chair 102 is assembled and used in a classroom. The student may sit in a traditional upright position, straddle the modular chair 102, or sit sideways, depending on their comfort and activity. The fingerprint-patterned perforations on the polymer shell 104 may enhance breathability, ensuring comfort during prolonged use. The base frame 110 may provide stability, while the half-round nylon endcaps 116 may facilitate smooth movement on the classroom floor. The combination of features ensures that the modular chair 102 adapts to the student’s needs, promoting active learning and engagement.
[00104] In some embodiments, the method 600 for assembling the modular chair 102 offers several advantages and benefits, including enhanced comfort, durability, flexibility, space efficiency, and ease of assembly. The fingerprint-patterned perforations on the polymer shell 104 enhance breathability, ensuring comfort during prolonged seating. The PPGF 30% material and Ø25mm mild steel pipe base frame 110 ensure that the modular chair 102 can withstand high-stress conditions without breaking. The four-leg structure allows for multiple seating positions, including straddling, sideways seating, and straight flexible seating, promoting active learning. The modular chair 102 is designed to allow stacking of up to four chairs, making the modular chair 102 space-efficient for storage and transportation. The use of the bolts 114 (Allen bolts) and the back cover 118 simplifies the assembly process, ensuring quick and secure installation.
[00105] It will be appreciated that, for clarity purposes, the above description has described embodiments of the invention with reference to different mechanical components and their functionalities. However, it will be apparent that any suitable distribution of functionality between different components or assemblies may be used without detracting from the invention. For example, functionality illustrated to be performed by separate components may be integrated into a single component or assembly. Hence, references to specific components are only to be seen as references to suitable means for providing the described functionality, rather than indicative of a strict structural or organizational configuration.
[00106] Although the present invention has been described in connection with some embodiments, it is not intended to be limited to the specific form set forth herein. Rather, the scope of the present invention is limited only by the claims. Additionally, although a feature may appear to be described in connection with particular embodiments, one skilled in the art would recognize that various features of the described embodiments may be combined in accordance with the invention.
[00107] Furthermore, although individually listed, a plurality of means, elements or process steps may be implemented by, for example, a single unit or processor. Additionally, although individual features may be included in different claims, these may possibly be advantageously combined, and the inclusion in different claims does not imply that a combination of features is not feasible and/or advantageous. Also, the inclusion of a feature in one category of claims does not imply a limitation to this category, but rather the feature may be equally applicable to other claim categories, as appropriate. , Claims:1. A modular chair for flexible and active seating comprising:
a polymer shell comprising a seat and a backrest, wherein the polymer shell includes fingerprint-patterned perforations for air ventilation through the modular chair;
a base frame comprising a four-leg structure, wherein the base frame is made of mild steel pipe and is configured to support the polymer shell;
a backrest extension integrated into the base frame, wherein the backrest extension is bolted to the backrest of the polymer shell using one or more Allen bolts; and
half-round nylon endcaps attached to the bottom of each leg of the base frame, wherein the half-round nylon endcaps facilitate movement and stability of the modular chair during seating.
2. The modular chair of claim 1, wherein the mild steel pipe of the base frame has a diameter of 25 millimetres (mm).
3. The modular chair of claim 1, wherein the polymer shell is made of Polypropylene (PPGF) with 30% glass fiber.
4. The modular chair of claim 1, wherein the polymer shell further comprises a back cover that snaps onto the backrest to protect the backrest extension.
5. The modular chair of claim 1, wherein the base frame is configured to allow stacking of up to four chairs on the modular chair.
6. The modular chair of claim 1, wherein the modular chair is configured to support a weight of up to 150 kilograms (kg).

7. The modular chair of claim 1, wherein the modular chair allows for multiple seating positions, including straddling, sideways seating, and straight flexible seating.
8. The modular chair of claim 1, wherein the seat has a height in a range of 420 millimetres (mm) to 450mm from the base.
9. The modular chair of claim 1, wherein the polymer shell is manufactured using an injection molding process.
10. A modular chair with cantilever support for flexible and active seating, the modular chair comprising:
a polymer shell comprising a seat and a backrest, wherein the polymer shell includes fingerprint-patterned perforations for air ventilation;
a cantilever base frame comprising a mild steel pipe and a lumber frame, wherein the lumber frame has a diameter of 16mm and is welded to the base frame for backrest support, and wherein the backrest shell is fixed to the lumber frame using a 2 mm plate;
a backrest extension integrated into the base frame, wherein the backrest extension is bolted to the backrest of the polymer shell using one or more Allen bolts; and
plastic glides attached to the bottom of the cantilever base frame to facilitate smooth movement and stability during flexible seating.
11. The modular chair of claim 10, wherein the mild steel pipe of the cantilever base frame has a diameter of 25mm.
12. The modular chair of claim 10, wherein the polymer shell is made of Polypropylene (PPGF) with 30% glass fiber.
13. The modular chair of claim 10, wherein the polymer shell further comprises a back cover that snaps onto the backrest to protect the backrest extension.
14. The modular chair of claim 10, wherein the base frame is configured to allow stacking of up to four chairs.
15. The modular chair of claim 10, wherein the chair is configured to support a weight of up to 150 kg.
16. The modular chair of claim 10, wherein the chair allows for multiple seating positions, including straddling, sideways seating, and straight flexi seating.
17. The modular chair of claim 10, wherein the seat has a height of 350mm, 380mm, 420mm, or 450mm from the base.
18. A swivel chair for flexible and active seating with mobility comprising:
a polymer shell comprising a seat and a backrest, wherein the polymer shell includes fingerprint-patterned perforations for air ventilation;
a swivel star base frame comprising wheels, wherein the swivel star base frame allows for mobility of the chair;
a height-adjustable cylinder connected to the swivel star base frame, wherein the cylinder allows for adjustable seat height; and
a backrest extension integrated into the swivel star base frame, wherein the backrest extension is bolted to the backrest of the polymer shell using one or more Allen bolts.
19. The swivel chair of claim 18, wherein the polymer shell is made of Polypropylene (PPGF) with 30% glass fiber.
20. The swivel chair of claim 18, wherein the polymer shell further comprises a back cover that snaps onto the backrest to protect the backrest extension.