WO2025037285A1

WO2025037285A1 - Method for manufacturing synthetic cricket ball

Info

Publication number: WO2025037285A1
Application number: PCT/IB2024/058173
Authority: WO
Inventors: Paras Juny ANAND
Original assignee: Individual
Current assignee: Individual
Priority date: 2024-05-21
Filing date: 2024-08-22
Publication date: 2025-02-20
Anticipated expiration: 2026-11-21
Also published as: WO2025037285A9

Abstract

The present disclosure discloses a method (100) for manufacturing a cricket ball to enhance performance, durability, and sustainability. The cricket ball is crafted from a composite material blend comprising Ethylene Propylene Diene Monomer (EPDM), Thermoplastic Polyurethane (TPU), and Ethylene Vinyl Acetate (EVA). Through meticulous manufacturing processes, including precise mixing, heating, pressing, stitching, and interweaving the cricket ball achieves optimal structural integrity and uniformity. The resultant product offers superior durability, consistent performance characteristics, and weather resistance, ensuring reliability in various playing conditions. Moreover, the cricket ball exhibits reduced water absorption, promoting consistent gameplay on wet surfaces. Additionally, the utilization of eco-friendly materials underscores a commitment to sustainability, while cost-effective production methods make the cricket ball accessible to a wide range of users. Compliance with standard size, weight, and performance regulations further solidifies its suitability for professional and recreational cricket matches.

Description

METHOD FOR MANUFACTURING SYNTHETIC CRICKET BAEE

TECHNICAE FIELD

[0001] The present disclosure relates to sports equipment manufacturing. In particular, the present disclosure pertains to development and production of cricket balls to enhance performance, durability, and sustainability during gameplay.

BACKGROUND

[0002] Background description includes information that may be useful in understanding the present disclosure. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed disclosure, or that any publication specifically or implicitly referenced is prior art.

[0003] Cricket, a sport steeped in tradition and strategy, relies heavily on meticulously crafted equipment to maintain its integrity and standards of play. At the core of the game lies the cricket ball, a vital component that can profoundly influence match dynamics and outcomes. Historically, cricket balls have been fashioned from leather, a material known for its durability and performance attributes. Over time, the manufacturing process for cricket balls has undergone refinement and optimization, combining traditional craftsmanship with modem techniques to ensure consistency and quality in production.

[0004] Crafting a cricket ball includes a meticulous process that demands precision and expertise. Skilled artisans carefully stitch together leather panels to form the spherical shape characteristic of cricket balls. Each step in the manufacturing process is carefully executed to meet the stringent requirements of professional play, from the selection of materials to the final inspection of the finished product. As the popularity of cricket has grown, manufacturers have leveraged advancements in technology to enhance efficiency and consistency in production, while still adhering to the highest standards of quality.

[0005] There is, therefore, a need for a solution to obviate the above-mentioned issues by providing a cricket ball crafted from materials that deliver enhanced durability, consistent performance, and reduced environmental impact.

OBJECTS OF THE PRESENT DISCLOSURE

[0006] Some of the objects of the present disclosure, which at least one embodiment herein satisfies are as listed herein below. [0007] An object of the present disclosure provides a method for manufacturing cricket balls with enhanced durability, offering increased resilience and longevity compared to traditional cricket balls.

[0008] Another object of the present disclosure provide a method for manufacturing cricket balls endowed with weather resistance, capable of withstanding various weather conditions without significant degradation.

[0009] Another object of the present disclosure provide a method for manufacturing cricket balls characterized by reduced water absorption, minimizing weight fluctuations when exposed to moisture and ensuring consistent performance on wet surfaces.

[0010] Another object of the present disclosure provide a method for manufacturing cricket balls promoting eco-friendliness, and advancing sustainability through the use of environmentally friendly materials or manufacturing processes.

[0011] Another object of the present disclosure provide a method for manufacturing cricket balls offering cost-effectiveness, yielding savings in manufacturing or maintenance compared to conventional cricket balls.

[0012] Another object of the present disclosure provide compliance with regulations for a cricket ball, meeting standard size, weight, and performance regulations mandated by cricket governing bodies.

SUMMARY

[0013] Aspects of the present disclosure relate to sports equipment manufacturing. In particular, the present disclosure pertains to development and production of cricket balls to enhance performance, durability, and sustainability during gameplay.

[0014] An aspect of the present disclosure pertains to a cricket ball that includes a cover made of a composite material consisting of Ethylene Propylene Diene Monomer (EPDM), Thermoplastic Polyurethane (TPU), and Ethylene Vinyl Acetate (EVA). The cover includes two hemispherical cups stitched together along a diametral plane. Additionally, a core cork is inserted in the two hemispherical cups, and a seam is formed by interweaving the stitching of the two hemispherical cups.

[0015] Another aspect of the present disclosure pertains to a method for manufacturing cricket balls includes several precise steps to ensure the production of high- quality, reliable balls. Initially, a composite material comprising Ethylene Propylene Diene Monomer (EPDM), Thermoplastic Polyurethane (TPU), and Ethylene Vinyl Acetate (EVA) is meticulously mixed in predefined ratios. This composite material undergoes heating at specific temperatures and durations to achieve optimal consistency. Subsequently, the heated composite material is pressed using a hydraulic machine to form hemispherical cups, which are stitched together using a sewing machine. Following this, a cork core is inserted into the stitched cups and compressed to fit snugly. Further, the cups are interwoven to form a secure seam.

[0016] Additionally, the method includes steps for shaping and molding the cricket ball to predefined dimensions, conducting thorough quality checks for weight and size compliance, and inspecting each ball by trained personnel. These comprehensive procedures ensure the production of cricket balls that offer enhanced durability, consistent performance, and adherence to industry standards.

[0017] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] FIG. 1 illustrates an exemplary flow diagram of proposed method for manufacturing a cricket ball, in accordance with some embodiments of the present disclosure. [0020] FIG. 2 illustrates an exemplary machine for mixing EPDM, TPU and EVA to form a composite material, in accordance with an embodiment of the present disclosure.

[0021] FIG. 3 illustrates an exemplary hydraulic machine for heating and pressing the composite material, in accordance with an embodiment of the present disclosure.

[0022] FIG. 4 illustrates an exemplary view of formed hemispherical cups by the hydraulic machine, in accordance with an embodiment of the present disclosure.

[0023] FIG. 5 illustrates an exemplary view of stitching on formed hemispherical cups, in accordance with an embodiment of the present disclosure.

[0024] FIGs. 6A-6D illustrate exemplary views of inserting a cork core into the stitched hemispherical cups, in accordance with an embodiment of the present disclosure.

[0025] FIG. 7 illustrates an exemplary view of stitching formed cricket ball from outer side, in accordance with an embodiment of the present disclosure. [0026] FIGs. 8A-8B illustrate an exemplary view of shaping and molding the manufactured cricket ball by a machine, in accordance with an embodiment of the present disclosure.

[0027] FIGs. 9A-9D illustrate exemplary views of quality control measures of the manufactured cricket ball, in accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION

[0028] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosures as defined by the appended claims.

[0029] Embodiments of the present disclosure relate to sports equipment manufacturing. In particular, the present disclosure pertains to development and production of cricket balls to enhance performance, durability, and sustainability during gameplay.

[0030] An embodiment of the present disclosure pertains to a cricket ball that includes a cover made of a composite material consisting of Ethylene Propylene Diene Monomer (EPDM), Thermoplastic Polyurethane (TPU), and Ethylene Vinyl Acetate (EVA). The cover includes two hemispherical cups stitched together along a diametral plane. Additionally, a core cork is inserted in the two hemispherical cups, and a seam is formed by interweaving the stitching of the two hemispherical cups.

[0031] Another embodiment of the present disclosure pertains to a method for manufacturing cricket balls that includes several steps to ensure production of high-quality, reliable balls. Initially, a composite material comprising Ethylene Propylene Diene Monomer (EPDM), Thermoplastic Polyurethane (TPU), and Ethylene Vinyl Acetate (EVA) is meticulously mixed in predefined ratios. This composite material undergoes heating at specific temperatures and durations to achieve optimal consistency. Subsequently, the heated composite material is pressed using a hydraulic machine to form hemispherical cups, which are stitched together using a sewing machine. Following this, a cork core is inserted into the stitched cups and compressed to fit snugly. Further, the cups are interwoven to form a secure seam.

[0032] Additionally, the method includes steps for shaping and molding the cricket ball to predefined dimensions, conducting thorough quality checks for weight and size compliance, and inspecting each ball by trained personnel. These comprehensive procedures ensure the production of cricket balls that offer enhanced durability, consistent performance, and adherence to industry standards.

[0033] Referring to FIG. 1, a method 100 for manufacturing a cricket ball is disclosed. The method 100 includes at step 102, mixing Ethylene Propylene Diene Monomer (EPDM), Thermoplastic Polyurethane (TPU), and Ethylene Vinyl Acetate (EVA) in a predefined ratio. The EPDM is a synthetic rubber known for its excellent weather resistance and strong tensile strength. The TPU is valued for its elasticity, transparency, and resistance to oils and grease, making it ideal for cricket ball production. The EVA is a durable, flexible, and resistant material utilized in cricket ball manufacturing, contributing to its longevity and performance.

[0034] This mixture creates a composite material that will serve as the primary substance for constructing the cricket ball. For instance, EPDM offers durability and resilience, TPU provides flexibility and impact resistance, and EVA offers cushioning and shock absorption. By mixing them in specific ratios, the resulting composite material can exhibit a balance of these properties, enhancing performance and longevity of the cricket ball. [0035] In an exemplary embodiment, by adjusting ratios of EPDM, TPU, and EVA, manufacturers can customize properties of the composite material to meet specific requirements for the cricket ball. For example, increasing the proportion of EPDM may enhance durability, while higher levels of TPU could improve flexibility. This flexibility allows for customization according to factors such as playing conditions, player preferences, and regulatory standards.

[0036] In an exemplary embodiment, using these synthetic materials EPDM, TPU, and EVA in manufacturing the cricket ball, the method can address environmental concerns associated with traditional leather cricket balls. These materials can be sourced sustainably and may have lower environmental impact during production compared to natural materials. Additionally, their durability may result in a longer lifespan, reducing the need for frequent replacements and associated resource consumption.

[0037] In an embodiment, mixing process is conducted using a machine, as depicted in FIG. 2, which likely illustrates a specialized apparatus designed for blending the materials efficiently and accurately. By utilizing such machine, the method ensures a controlled and standardized approach to mixing the components, thereby ensuring consistency and quality in the resulting composite material. For instance, mixing the materials in a controlled environment, such as a specialized machine, ensures uniform distribution and homogeneity of the composite material. This consistency is required for maintaining quality and performance standards across batches of cricket balls. This minimizes variations in material properties, which can affect the behavior of the ball during play, ensuring a more predictable and reliable experience for players.

[0038] Continuing further, at step 104, the method 100 includes heating the composite material for a pre-defined time at a pre-defined temperature, by a hydraulic machine, as shown in FIG. 3. The pre-defined time for heating the composite material is 2-3 minutes and the pre-defined temperature for heating the composite material is 175°C. Further, heating the composite material allows it to undergo physical or chemical transformations that enhance its properties. For example, heating can facilitate melting and blending of the constituent materials, ensuring a homogeneous mixture. Additionally, this may trigger curing reactions in thermosetting materials, leading to improved strength and durability. Additionally, heating softens the composite material, making it more malleable and easier to shape. This property is essential for forming the hemispherical cups that constitute the outer shell of the cricket ball. By heating the material to a specific temperature, manufacturers can achieve the desired level of softness or viscosity, enabling precise molding and shaping processes.

[0039] This hydraulic machine likely incorporates heating elements and controlled pressure systems to ensure uniform heating and shaping of the composite material. The use of hydraulic technology allows for precise control over temperature and pressure parameters, resulting in consistent and reproducible manufacturing outcomes.

[0040] Continuing further, at step 106, the method 100 includes pressing the heated composite material by the hydraulic machine to form hemispherical cups, as shown in FIG. 4. The hydraulic machine offers precise control over pressure and force application, allowing manufacturers to achieve the desired level of compression and shaping. This ensures consistency in the manufacturing process and results in cricket balls with uniform properties and performance characteristics. For example, the pressing action compacts material and shapes it into required hemispherical form. The hydraulic machine applies controlled force to ensure uniform compression of the material, resulting in consistent and precisely shaped hemispherical cups. These hemispherical cups represent the outer casing of the cricket ball and are essential for its structure and performance. The hemispherical cups are typically formed with precision to ensure uniformity in size, shape, and thickness, which are critical factors affecting the ball's flight and bounce characteristics. [0041] Continuing further, at step 108, the method 100 includes stitching, on each of the formed hemispherical cups using a sewing machine, (an exemplary sewing machine is shown in FIG. 5. Each of the hemispherical cups, which constitute outer covering of cricket ball, undergoes stitching using a sewing machine. This stitching process is essential for securely joining the cups together to form a seamless outer shell. Additionally, for machine- stitched cricket balls, a strong and durable synthetic thread is typically used. Synthetic threads offer excellent tensile strength and resistance to wear and tear, ensuring the longevity and reliability of the stitched seams. Further, the stitching is done in a specific pattern designed to maintain the shape and durability of the cricket ball. This pattern may vary based on factors such as ball size, intended use, and manufacturer preferences, and a well-executed stitching pattern contributes to the structural integrity of the ball and helps it withstand the rigors of gameplay.

[0042] Continuing further, at step 110, the method 100 includes inserting, a cork core into the stitched hemispherical cups, and compressing the cork core to fit within the hemispherical cups, as shown in FIGs. 6A-6D. The cork core provides the necessary weight and bounce characteristics to the cricket ball. Once inserted, the cork core is compressed to fit snugly within the hemispherical cups. This compression ensures that the cork core is securely held in place and properly integrated into the structure of the cricket ball, proper compression is essential for maintaining balance and consistency of performance of the ball during play.

[0043] Continuing further, at step 112, the method 100 includes interweaving, the stitched hemispherical cups to form a seam, as shown in FIG. 7. This interweaving process involves weaving the stitching of the cups together to create a secure and uniform seam along the circumference of the cricket ball. The seam plays a critical role in maintaining the structural integrity of the ball, preventing the hemispherical cups from separating during gameplay. Additionally, the interwoven seam enhances the durability and longevity of the cricket ball, ensuring that it can withstand the rigors of repeated impacts and use on the cricket field.

[0044] Continuing further, at step 114, the method 100 includes the step of shaping and molding the manufactured cricket ball to a pre-defined or specific shape and size, this ensures uniformity across all produced ball, thereby maintaining consistency in their appearance and performance.

[0045] The shaping and molding process may include specialized equipment or molds (as shown in FIGs. 8A and 8B) to form the desired shape and dimensions to the cricket balls. By subjecting the balls to this shaping and molding step, manufacturers can ensure that each ball conforms precisely to the specified standards for size and shape.

[0046] Continuing further, at step 116, the method 100 includes the step of conducting weight and size checks of the manufactured cricket ball to verify compliance with standard weight and size requirements. This verifies that each cricket ball meets specified weight and size regulations set by governing bodies or industry standards. The weight and size checks are performed using specialized equipment or measurement tools, as shown in FIGs. 9A-9D. These tools accurately measure the weight and dimensions of the cricket balls, allowing inspectors to compare the results against the predetermined standards.

[0047] In an embodiment, the method 100 further includes the step of inspecting the manufactured cricket ball by a trained inspector, as shown in FIGs. 9A-9D. The trained inspectors are specifically trained for this purpose and are tasked with meticulously examining each ball for any defects or imperfections. During the inspection process, the trained inspectors carefully scrutinize the cricket balls to identify any issues that may affect their quality or performance. This includes checking for defects such as uneven seams, irregularities in shape or size, and any other abnormalities that could compromise the integrity of the ball.

[0048] In an embodiment, the method 100 further includes the step of stamping the examined cricket balls with a ball logo. This stamping is done using an automated stamping machine, which applies the logo onto the surface of each cricket ball. The logo may include branding elements, identification marks, or decorative designs, serving various purposes such as product recognition and branding. By using an automated stamping machine, the stamping process is efficient, precise, and consistent across all cricket balls. Once the stamping process is completed, the cricket balls are packed and prepared for delivery to customers. Packaging involves placing the stamped balls into suitable containers or packaging materials to protect them during transit and storage. This step ensures that the cricket balls reach customers in optimal condition, ready for use in practice sessions or competitive matches. Further, inclusion of the stamping and packaging steps ensures that the manufactured cricket balls meet quality standards and are ready for distribution to end-users.

[0049] In an exemplary embodiment, the materials, EPDM, TPU, and EVA, are gathered and prepared for the manufacturing process. These materials are chosen for their specific properties, including durability, flexibility, and weather resistance. The materials are mixed together in precise ratios using a mixing machine. This ensures that the final compound will have the desired combination of properties, such as resilience, elasticity, and weather resistance. Once the mixing is complete, the compound is then fed into molds designed to create spherical shapes. These molds are closed, and the compound is subjected to pressure and heat to shape it into spherical forms. During the shaping and molding process, the closed molds containing the compound are heated to a specific temperature to soften the materials and allow them to flow and take the shape of the molds. After shaping, the molds are cooled to set the compound into its final form. Once cooled, the molded balls are removed from the molds and undergo any necessary finishing touches. These finishing touches may include trimming excess material, polishing the surface, or adding texture for better grip. Following the finishing touches, the formed balls undergo rigorous quality control checks to ensure that they meet the required standards for size, weight, and performance. This involves measuring dimensions, weighing the balls, and testing their bounce, flexibility, and weather resistance.

[0050] Further, the manufactured balls are packaged and prepared for distribution. They are packaged in suitable containers or packaging materials to protect them during transit and storage, ready to be shipped to customers or retailers.

[0051] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

ADVANTAGES OF THE PRESENT DISCLOSURE

[0052] The present disclosure provides a method for manufacturing cricket balls with enhanced durability, offering increased resilience and longevity compared to traditional cricket balls.

[0053] The present disclosure provides a method for manufacturing cricket balls ensuring consistent performance, and maintaining consistent bounce, spin, and flight characteristics over time.

[0054] The present disclosure provides a method for manufacturing cricket balls endowed with weather resistance, capable of withstanding various weather conditions without significant degradation. [0055] The present disclosure provides a method for manufacturing cricket balls characterized by reduced water absorption, minimizing weight fluctuations when exposed to moisture and ensuring consistent performance on wet surfaces.

[0056] The present disclosure provides a method for manufacturing cricket balls promoting eco-friendliness, and advancing sustainability through the use of environmentally friendly materials or manufacturing processes.

[0057] The present disclosure provides a method for manufacturing cricket balls offering cost-effectiveness, yielding savings in manufacturing or maintenance compared to conventional cricket balls. [0058] The present disclosure provides compliance with regulations for cricket balls, meeting standard size, weight, and performance regulations mandated by cricket governing bodies.

Claims

I Claim:

1. A method (100) for manufacturing a cricket ball, comprising the steps of: mixing (102), Ethylene Propylene Diene Monomer (EPDM), Thermoplastic Polyurethane (TPU), and Ethylene Vinyl Acetate (EVA) in a pre-defined ratio to form a composite material; heating (104), the composite material for a pre-defined time at a pre-defined temperature, by a hydraulic machine; pressing (106), the heated composite material by the hydraulic machine to form hemispherical cups; stitching (108), the formed hemispherical cups using a sewing machine; inserting (110), a cork core into the stitched hemispherical cups, and compressing the cork core to fit within the hemispherical cups; interweaving (112), the stitched hemispherical cups to form a seam; shaping and molding (114), the manufactured cricket ball to a pre-defined shape and size; and conducting weight and size checks (116), of the manufactured cricket ball to verify compliance with standard weight and size requirements.

2. The method (100) as claimed in claim 1, wherein the pre-defined time for heating the composite material is 2-3 minutes.

3. The method (100) as claimed in claim 1, wherein the pre-defined temperature for heating the composite material is 175°C.

4. The method (100) as claimed in claim 1, further comprising the step of inspecting the manufactured cricket ball by a trained inspector.

5. The method (100) as claimed in claim 1, further comprising the step of stamping the manufactured cricket ball with a logo.

6. A cricket ball comprising: a cover made of a composite material consisting of Ethylene Propylene Diene Monomer (EPDM), Thermoplastic Polyurethane (TPU), and Ethylene Vinyl Acetate (EVA), the cover comprises two hemispherical cups stitched together along a diametral plane; a core cork inserted in the two hemispherical cups; and a seam formed by interweaving the stitching of the two hemispherical cups.