Cavity structure of a sports equipment that applies internal pressure and its manufacturing method.

Abstract

This invention relates to a cavity structure for a sports equipment that applies internal pressure and a method for manufacturing the same. [Solution] The method includes the steps of: obtaining mechanical data of the cavity structure of the internal pressure-applying sports equipment; forming cavity distribution data, cavity structure data, and cavity pressure data from the mechanical data; determining a cavity structure model from the cavity distribution data and the cavity structure data; and printing the cavity structure of the internal pressure-applying sports equipment by inputting the cavity structure model into a 3D printer. The present invention makes it possible to determine an actual printing model by obtaining predetermined cavity structures that fit various areas and predetermined pressure values ​​inside the cavity structures from the mechanical data. Furthermore, the printing process makes it possible to obtain a cavity structure of internal pressure-applying sports equipment having structures corresponding to various functional areas, thereby enabling various personalized customizations for the user.

Description

Technical Field

[0001] The present invention belongs to the technical field of the design and manufacture of sports equipment, and particularly relates to the cavity structure of an internally pressurized sports equipment and a manufacturing method thereof.

Background Art

[0002] Conventional sports equipment, such as shoes and knee pads, usually uses foamed materials as cushioning materials. The cushioning materials have the advantages of being light in weight, flexible, and having good energy absorption, but have the disadvantages of poor elastic recovery performance and poor durability. Therefore, when sports equipment made of such cushioning materials is used for a long time, the cushioning materials become ineffective due to fatigue, and the comfort and sports performance are significantly reduced, and the requirements for the elastic recovery performance of sports equipment cannot be met. In order to increase the elastic recovery performance of sports equipment, in the prior art, usually, an airbag structure, such as an airbag insole and an airbag backpack strap, etc. is designed for sports equipment. In the conventional molding method for molding the cavity structure of sports equipment, usually, the cavity structure is molded by pressing with a mold. The airbag manufactured by that molding method has the disadvantage of having a unique shape. That is, since the structure of the mold cannot be easily deformed, it cannot meet various personalized customizations of users, and various structures corresponding to various functional areas of sports equipment cannot be manufactured. Also, since the inside of the conventional cavity structure is not pressurized, it still has the disadvantage of poor durability, and when sports equipment is used for a long time, the sports equipment may become ineffective. That is, according to the prior art, it is impossible to simultaneously ensure the support effect and elastic recovery performance of sports equipment and increase the durability of sports equipment.

[0003] Therefore, it is necessary to improve and modify conventional technologies. [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] To overcome the shortcomings of conventional technology, the object of the present invention is to provide a cavity structure for a sports equipment that applies internal pressure and a method for manufacturing the same, thereby solving the problem that conventional cavity structures for sports equipment cannot simultaneously ensure support effect and elastic recovery performance, and cannot increase the durability of the sports equipment. [Means for solving the problem]

[0005] The technical aspects of this invention are as follows: In an example of the present invention, a method for manufacturing the cavity structure of a pressure-applying sports equipment is provided. The method for manufacturing the cavity structure of the pressure-applying sports equipment is as follows: The steps include obtaining mechanical data of the cavity structure of the aforementioned internal pressure-applying sports equipment, The steps include forming cavity distribution data, cavity structure data, and cavity pressure data using the aforementioned mechanical data, The steps include determining the cavity structure model using the cavity distribution data and the cavity structure data, The method includes the step of inputting the cavity structure model into a 3D printer to print the cavity structure of the internal pressure-applying sports equipment.

[0006] In an embodiment of the present invention, the step of obtaining mechanical data of the cavity structure of the internal pressure-applying sports equipment is: A 3D model of the cavity structure of the internal pressure-applying sports equipment is formed by the user's body parts corresponding to the cavity structure of the internal pressure-applying sports equipment, The force sensor detects load data of the user's body part, This includes forming mechanical data for the 3D model using the load data.

[0007] In an embodiment of the present invention, the step of forming cavity distribution data, cavity structure data, and cavity pressure data using the mechanical data is: To obtain elasticity data and bearing capacity data from the aforementioned mechanical data, Based on the elasticity data and the support force data, the support force area and elasticity area on the cavity structure of the internal pressure-applying sports equipment are obtained. The cavity distribution data is formed by the bearing capacity area and the elasticity area, This includes forming the cavity structure data and the cavity pressure data using the elasticity data and the bearing capacity data.

[0008] In embodiments of the present invention, the cavity distribution data includes cavity connection relationships, regional cavity density, and number of structural layers. The aforementioned cavity connection relationship refers to the connection relationship between adjacent cavities. The aforementioned area cavity density refers to the number of cavity structures arranged in a unit area on a single horizontal plane. The aforementioned number of structural layers refers to the number of layers in the cavity structure in the vertical direction.

[0009] In embodiments of the present invention, the cavity structure data includes the cavity shape, cavity size, and cavity wall thickness. The aforementioned cavity shape is the shape of a single cavity, The aforementioned cavity size refers to the length of a single cavity in each direction in 3D space. The cavity wall thickness is the thickness of the side wall of a single cavity.

[0010] In embodiments of the present invention, the cavity shape includes elliptical, spherical, rectangular, cubic, and octahedral shapes.

[0011] In an embodiment of the present invention, the cavity pressure data includes the internal pressure of the cavity, the internal pressure of the cavity represents the pressure value inside a single cavity, and the internal pressure of the cavity is 1 atm or greater.

[0012] In an embodiment of the present invention, the step of printing the cavity structure of the internally pressure-applying sports equipment by inputting the cavity structure model into a 3D printer where the internal pressure is normal or into a 3D printer in which a pressure boosting module is installed is: The cavity structure model is input into the 3D printer, and the initial printing position is determined. Printing a single cavity equipped with an airbag structure at the initial printing position, This includes forming the cavity structure of the internal pressure-applying sports equipment by repeating the printing process of the individual cavities using the cavity structure model.

[0013] In an embodiment of the present invention, the cavity structure model is input into a 3D printer, and the resin material to be used for 3D printing is selected based on the cavity structure model before printing the cavity structure of the internal pressure-applying sports equipment.

[0014] In a second example of the present invention, a cavity structure for a pressure-applying sports device is further provided. This cavity structure for a pressure-applying sports device is manufactured by any one of the above-described methods for manufacturing a cavity structure for a pressure-applying sports device. [Effects of the Invention]

[0015] As described above, the present invention provides a cavity structure of an internally pressurized sports equipment, a manufacturing method thereof, and an application thereof. The manufacturing method of the cavity structure of the internally pressurized sports equipment includes steps of obtaining mechanical data of the cavity structure of the internally pressurized sports equipment; forming cavity distribution data, cavity structure data, and cavity air pressure data based on the mechanical data; determining a cavity structure model based on the cavity distribution data, the cavity structure data, and the cavity air pressure data; and printing the cavity structure of the internally pressurized sports equipment by inputting the cavity structure model into a 3D printer with a normal pressure inside or a 3D printer with a pressure boosting module attached inside. The present invention forms a predetermined cavity structure with various functional areas designed based on mechanical data, and determines an actual printing model. Next, through the printing process, a cavity structure of an internally pressurized sports equipment having structures corresponding to various functional areas respectively can be obtained, thereby realizing various personalizations and customizations of users.

Brief Description of the Drawings

[0016] [Figure 1] It is a flowchart showing a manufacturing method of a cavity structure of an internally pressurized sports equipment of the present invention. [Figure 2] It is a flowchart showing step S100 in the manufacturing method of a cavity structure of an internally pressurized sports equipment of the present invention. [Figure 3] It is a flowchart showing step S200 in the manufacturing method of a cavity structure of an internally pressurized sports equipment of the present invention. [Figure 4] It is a flowchart showing step S400 in the manufacturing method of a cavity structure of an internally pressurized sports equipment of the present invention. [Figure 5] It is a diagram showing using the cavity structure of an internally pressurized sports equipment of the present invention as a sole cushion material. [Figure 6]This is a diagram showing an elliptical single cavity of the cavity structure of the internally pressurized sports equipment of the present invention. [Figure 7] This is a diagram showing the arrangement of 3×3×3 elliptical cavities of the cavity structure of the internally pressurized sports equipment of the present invention. [Figure 8] This is a diagram showing the arrangement of elliptical cavities of the cavity structure of the internally pressurized sports equipment of the present invention. [Figure 9] This is a perspective view showing a 3D printer used in the manufacturing method of the cavity structure of the internally pressurized sports equipment of the present invention.

Embodiments for Carrying out the Invention

[0017] The present invention provides a cavity structure of an internally pressurized sports equipment and a manufacturing method thereof. In order to explain the object, technical matters and effects of the present invention in more detail and clearly, the present invention will be described in detail in the following embodiments. It should be noted that the following specific embodiments are for explaining the present invention and do not limit the present invention.

[0018] 3D printing technology (also referred to as 3D printing technology or Additive Manufacturing Technologies) is gradually being used in the manufacturing of sports equipment as a new model manufacturing technology. After inputting the structure of a predetermined sports equipment into 3D printing software, the sports equipment is manufactured by printing materials layer by layer. By adopting this printing method, it is possible to avoid using a mold, realize various personalized customizations of sports equipment, and manufacture various structures corresponding to various functional areas of sports equipment.

[0019] This invention makes it possible to obtain a cavity structure for a pressure-applying sports equipment that has good elastic recovery performance by employing 3D printing technology and appropriately designing the cavity structure of the sports equipment. Furthermore, by designing a cavity structure for sports equipment that enables personalized customization by the user and designing various structures that correspond to various functional areas of the sports equipment, it is possible to meet various user requirements and broaden the range of applications. In this invention, first, mechanical data of a predetermined pressure-applying sports equipment cavity structure is obtained, and then cavity distribution data, cavity structure data, and cavity pressure data are formed from the mechanical data. Next, a predetermined cavity structure model is determined from the cavity distribution data, cavity structure data, and cavity pressure data. Finally, the predetermined cavity structure model is input into a 3D printer to print the pressure-applying sports equipment cavity structure. Preferably, the pressure inside the cavity structure can be ensured by inputting the cavity structure model into a 3D printer where the internal pressure is normal, or into a 3D printer equipped with a pressure boosting module. Various functional areas can be designed in the cavity structure model of the internal pressure-applying sports equipment based on the various mechanical data that are fed back. By designing various structures in each area or by applying various pressures inside the cavity, various personalized customizations for the user can be realized.

[0020] As shown in Figure 1, the method for manufacturing the cavity structure of the internal pressure-applying sports equipment of the present invention includes the following steps.

[0021] In step S100, mechanical data of the cavity structure of the internal pressure-applying sports equipment is obtained.

[0022] Because different types of sports, different sports parts, and different physical conditions of each user result in different levels of support and elasticity provided by sports equipment to various parts of the user's body. Therefore, it is necessary to design 3D models appropriately by collecting mechanical data on the cavity structure of sports equipment in advance. This allows for various personalized customizations for users, protecting their bodies while they participate in sports.

[0023] In an embodiment of the present invention, as shown in Figure 2, step S100 includes the following steps.

[0024] In step S110, a 3D model of the cavity structure of the internal pressure-applying sports equipment is formed using user body parts corresponding to the cavity structure of the internal pressure-applying sports equipment.

[0025] In specific embodiments, the 3D model of the cavity structure of the pressure-applying sports equipment can be adapted to various body parts of the user by representing the overall contour and shape of the cavity structure. In selectable embodiments, the cavity structure of the pressure-applying sports equipment can be used as a shoe sole cushioning material corresponding to the user's foot to form an insole-shaped 3D model structure. The cavity structure of the pressure-applying sports equipment can be used as a strap cushioning material corresponding to the user's shoulder to form a rectangular 3D model structure. The cavity structure of the pressure-applying sports equipment can be used as a helmet cushioning material corresponding to the user's head to form an annular 3D model structure. By designing a 3D model corresponding to a predetermined sports equipment, the cavity structure of the pressure-applying sports equipment can be manufactured in various forms, ensuring the elastic recovery performance and support performance of the sports equipment, and enabling various personalized customizations for the user.

[0026] In an embodiment of the present invention, as shown in Figure 2, after step S110 is performed, step S100 further performs the following steps.

[0027] In step S120, load data of the user's body part is detected by a force sensor.

[0028] In step S130, the load data is used to form the mechanical data of the 3D model.

[0029] In a specific embodiment, first, sports equipment corresponding to the user's body parts is determined. For example, the sole cushioning material corresponds to the user's feet, the strap cushioning material corresponds to the user's shoulders, and the helmet cushioning material corresponds to the user's head. Next, by attaching force sensors to predetermined body parts, load data received by each body part of the user at each time during sports activities is obtained, i.e., load position, load direction, and load intensity. By obtaining the load intensity at various positions on the sports equipment corresponding to the user's body parts based on the principle of force interaction, mechanical data corresponding to various areas of the 3D model of the cavity structure of the internal pressure-applying sports equipment is formed.

[0030] As shown in Figure 1, the method for manufacturing the cavity structure of the internal pressure-applying sports equipment of the present invention further includes the following steps.

[0031] In step S200, cavity distribution data, cavity structure data, and cavity pressure data are formed using the mechanical data.

[0032] In specific examples, the required cushioning effect on various areas of the sports equipment differs depending on the type and application of the sports equipment. In the example of using shoe sole cushioning material in sports equipment, when a user is running and high jumping, the areas corresponding to the sole and heel support the user's gravity as they fall and provide elastic restorative force to the user. That is, it supports the user's running and high jumping by reducing the elastic restorative time of the cavity structure. The areas corresponding to the teethies and arch support the user's gravity as they fall and provide support force to the user. That is, it reduces the burden on the user's foot muscles by reducing the compression distance of the cavity structure. Due to the different types of sports and the fact that the cavity structure of the sports equipment corresponds to various parts of the user, various areas are designed in the cavity structure of the sports equipment. This allows for the acquisition of various levels of elasticity and support force. When using the cavity structure of the sports equipment, the areas that provide elasticity and the areas that provide support force in the cavity structure of the sports equipment can be determined by the load position, load direction, and load force of the human body. Therefore, when manufacturing the cavity structure of a sports equipment that applies internal pressure, various functions can be realized and various personalizations can be achieved by installing various functional areas in the cavity structure of the sports equipment.

[0033] In a specific embodiment of the present invention, as shown in Figure 3, step S200 includes the following steps.

[0034] In step S210, elasticity data and bearing capacity data are obtained from the mechanical data.

[0035] In step S220, the support area and elastic area on the cavity structure of the internal pressure-applying sports equipment are obtained using the elasticity data and the support force data.

[0036] In step S230, the cavity distribution data is formed by the bearing capacity area and the elasticity area.

[0037] In step S240, the cavity structure data and the cavity pressure data are formed using the elasticity data and the bearing capacity data.

[0038] In a specific embodiment of the present invention, the elasticity data includes the rebound speed, compression stroke, and load change when a user plays sports with the cavity structure of the internal pressure-applying sports equipment. The support force data includes the support force and compression stroke when the cavity structure of the internal pressure-applying sports equipment is in a stationary state. Using the elasticity data and the support force data, it is possible to determine the effect provided by each area of ​​the cavity structure of the internal pressure-applying sports equipment when using the cavity structure of the internal pressure-applying sports equipment, and to determine which areas become elasticity areas that provide greater elasticity and which areas become support force areas that provide greater support force. As shown in Figure 5, in an example of using a shoe sole cushioning material in sports equipment, elasticity areas are formed in the areas corresponding to the sole and heel, and support force areas are formed in the areas corresponding to the tutzis and arch. In the selectable examples, various elastic and bearing zones can be designed in the cavity structure of the internal pressure-applying sports equipment by reducing the wall thickness of the elastic zone and increasing the cavity, and by reducing the cavity of the bearing zone and increasing the wall thickness of the bearing zone. Furthermore, by adjusting the pressure within the cavity of the sports equipment, the elasticity and bearing capacity of a predetermined zone can be increased while ensuring the durability of the sports equipment.

[0039] In a specific embodiment of the present invention, cavity distribution data of the cavity structure of the internal pressure-applying sports equipment is obtained by designing various bearing capacity areas and elasticity areas in the cavity structure of the internal pressure-applying sports equipment. Cavity structure data and cavity pressure data of the cavity structure of the internal pressure-applying sports equipment are obtained from the specific elasticity data and bearing capacity data of various areas in the cavity structure of the internal pressure-applying sports equipment.

[0040] In a specific embodiment of the present invention, the cavity distribution data includes cavity connection relationships, regional cavity density, and the number of structural layers. When the 3D printer prints the printing material layer by layer, the number of structural layers is the number of cavity structure layers in the vertical direction of the cavity structure of the internal pressure-applying sports equipment. That is, it is the number of layers on which the printing material is printed. The regional cavity density refers to the number of cavity structures arranged in one horizontal plane, i.e., per unit area of ​​one structure layer. The cavity connection relationships refer to the connection relationships of adjacent cavities. The cavity connection relationships include the connection relationships of adjacent cavities in the horizontal direction and the connection relationships of adjacent cavities in the vertical direction. Each cavity within the cavity structure is formed separately. The cavity connection relationships include separation, tangency, and intersection, and the distance at which cavities intersect is smaller than the cavity wall thickness, thereby preventing two adjacent cavities from being connected. In selectable embodiments of the present invention, the cavities may be arranged to be separated from each other, or to be arranged so that certain cavities are in contact with each other in order to achieve a predetermined function or position. In the elastic zone, the zone cavity density decreases, and the cavity connection relationships are mainly such that two adjacent cavities are separated or in contact. In the bearing zone, the zone cavity density increases, and the cavity connection relationships are mainly such that two adjacent cavities are in contact. In this case, it is necessary to ensure that two adjacent cavities are not in communication with each other.

[0041] In specific embodiments of the present invention, the cavity structure data includes cavity shape, cavity size, and cavity wall thickness. The cavity shape is the shape of a monomer cavity and includes the external shape and the internal gas cavity shape. The cavity shape includes elliptical, spherical, rectangular, octahedral, and other polygonal structures. By designing the cavity shape to match the region cavity density, a cavity distribution corresponding to a specific application can be formed, providing elasticity and support that meets the needs of each user. The cavity size refers to the length of a monomer cavity in each direction in 3D space. By designing the cavity to various sizes based on the cavity shape, various elastic and support regions can be formed, various mechanical effects can be obtained, and personalized customization can be achieved. The cavity wall thickness is the thickness of the side wall of the monomer cavity. By appropriately designing the side wall thickness of the elastic and support regions, the monomer cavity can provide predetermined elasticity and support. For example, the thinner the side walls of a single cavity, the larger the internal cavity becomes, and the greater the elasticity the single cavity can provide. Conversely, the thicker the side walls of a single cavity, the smaller the internal cavity becomes, and the greater the load-bearing capacity the single cavity can provide.

[0042] Figure 6 is a perspective view showing an elliptical single cavity. Specifically, Figure 6(a) shows the entire elliptical single cavity, Figure 6(b) shows an elliptical single cavity with 1 / 8 of the side wall cut off and 7 / 8 of the side wall remaining, and Figure 6(c) shows 1 / 8 of the side wall of the elliptical single cavity. By connecting the elliptical single cavities, a matrix structure of a cavity structure for sports equipment that applies internal pressure and has a complex structure can be obtained. Figure 7 shows a matrix arranged in a 3x3x3 rule with and without load. Figure 7(a) is a perspective view showing the matrix with load, Figure 7(b) is a front view showing the matrix without load, and Figure 7(c) is a front view showing the matrix with vertical load. Since the parameters of each elliptical single cavity are the same, the matrix can provide the same elasticity and support force. Figure 8 shows the elliptical single cavities arranged regularly. Since the structure of each individual cavity in that drawing is the same, each individual cavity can provide the same load-bearing capacity and elasticity.

[0043] As shown in Figure 1, the method for manufacturing the cavity structure of the internal pressure-applying sports equipment of the present invention further includes the following steps.

[0044] In step S300, the cavity structure model is determined based on the cavity distribution data, the cavity structure data, and the cavity pressure data.

[0045] In a specific embodiment, the cavity distribution data, cavity structure data, and cavity pressure data can be used to determine the cavity distribution format to be applied to the cavity structure of the internal pressure-applying sports equipment, the specific structure of one cavity, and the pressure within one cavity. In other words, the 3D printing process can be guided by determining the cavity structure model.

[0046] As shown in Figure 1, the method for manufacturing the cavity structure of the internal pressure-applying sports equipment of the present invention further includes the following steps.

[0047] In step S400, the cavity structure of the internal pressure-applying sports equipment is printed by inputting the cavity structure model into a 3D printer.

[0048] Specifically, conventional 3D printing methods cannot ensure that a gas cavity is formed within the cavity structure of the aforementioned pressure-applying sports equipment. The present invention employs DLP (Digital Light Processing) technology and deposition and photosolidification 3D printing technology, and prints the printing material from the initial printing position to print a cavity structure of a pressure-applying sports equipment in which an airbag structure is formed inside. Preferably, by using a 3D printer that is at atmospheric pressure inside or a 3D printer that has a pressure boosting module installed inside, it is possible to ensure that the internal pressure of the cavity structure is greater than atmospheric pressure.

[0049] In an embodiment of the present invention, as shown in Figure 4, step S400 includes the following steps.

[0050] In step S410, the cavity structure model is input to the 3D printer and the initial printing position is determined.

[0051] In step S420, a single cavity having an airbag structure is printed at the initial printing position.

[0052] In step S430, the cavity structure of the internal pressure-applying sports equipment is formed by repeating the printing process of the individual cavity using the cavity structure model.

[0053] Figure 9 is a schematic diagram showing a 3D printer according to an embodiment of the present invention. The 3D printer includes a base 100, workbenches 200, a drive unit 300, and a UV projection device 400. The drive unit 300 drives the workbenches 200 to move relative to the base 100. As the workbenches 200 moves, the cavity structure of a pressure-applying sports equipment is formed by printing material layer by layer. Preferably, the 3D printer is used at atmospheric pressure (an environment where the pressure is greater than atmospheric pressure), or a pressure boosting module is installed inside the 3D printer to ensure that the internal pressure of a single cavity is greater than atmospheric pressure.

[0054] Specifically, at the first position 110 and second position 120, which are adjacent in the vertical direction of the base 100, the workbench 200 is installed at the first position 110 so as to be positioned above the base 100. The workbench 200 and the UV projection device 400 are installed symmetrically on both sides of the base 100. The UV projection device 400 is mounted below the base 100 and can print a predetermined product onto the workbench 200 by obtaining sliced ​​images of the cavity structure model of the cavity structure of the internal pressure-applying sports equipment. When printing begins, the workbench 200 is positioned at the first position 110, and a single cavity 210 is printed on the workbench 200, and an airbag structure is formed within the single cavity 210. When printing, the drive device 300 drives the workbench 200 to move so that the single cavity 210 moves away from the resin solution in the first position 110. This ensures that an airbag structure is formed within the single cavity 210. After printing one of the single cavities 210, the drive unit 300 drives the workbench 200 and the single cavity 210 to move, thereby moving the printed single cavity 210 to the second position 120, and further printing one of the single cavities below the single cavity 210 allows for the manufacture of a cavity structure for the internally pressure-applying sports equipment that matches the cavity structure model. Specifically, when performing the printing process, the 3D printer is placed in atmospheric pressure or a pressure boosting module is installed inside the 3D printer to make the pressure inside the airbag structure of the single cavity 210 greater than atmospheric pressure, thereby ensuring good elastic recovery performance and support performance of the single cavity 210. Preferably, the pressure inside the single cavity 210 is set to 1 atm or more.

[0055] In an embodiment of the present invention, a cavity model designed with 3D software is input into 3D printing software, and then a printing process is performed. As shown in Figure 9, a cavity structure corresponding to the cavity structure model is printed in the first position 110 of the 3D printer, i.e., the resin injection recess, using a deposition and photo-solidification 3D printing method. Furthermore, by moving the workbench 200 upward with the drive device 300 while printing, individual cavities can be printed one layer at a time. By forming an airbag structure within the individual cavity 210 during the printing process, good elastic recovery performance and support performance of the individual cavity 210 can be ensured. When the drive device 300 moves the workbench 200 and the individual cavity 210 that has finished printing upward, a new layer of individual cavity can be printed below the individual cavity 210 that has finished printing. By employing deposition and photosolidification 3D printing technology, high-pressure air can be injected into the airbag structure of the individual cavity 210, thereby ensuring the elastic recovery performance and support performance of the cavity structure of the internal pressure-applying sports equipment. After obtaining a predetermined cavity structure by printing the cavity structure model layer by layer, the cavity structure can be cleaned and solidified to obtain the cavity structure of the internal pressure-applying sports equipment.

[0056] In this embodiment, by injecting pressurized gas with a pressure of 1 atm or more into the individual cavity 210, the elastic recovery performance and support performance of the cavity structure of the internal pressure-applying sports equipment can be ensured.

[0057] In this embodiment, the cavity structure model is input into a 3D printer to select the resin material to be used for 3D printing of the cavity structure of the internal pressure-applying sports equipment before printing the cavity structure. Specifically, the mechanical properties of the side walls of the individual cavities are changed by adjusting the component ratio of the resin material. This ensures the rigidity of the side walls of the individual cavities and enables various personalized customizations.

[0058] In an embodiment of the present invention, a 3D printing material for manufacturing the cavity structure of an internal pressure-applying sports equipment of the present invention is obtained by mixing a 3D printing material composed of a pure soft material with a modulus of 1 MPa and a 3D printing material composed of a pure hard material with a modulus of 1 GPa. By adjusting the ratio of the pure soft material to the pure hard material in the 3D printing material, various 3D printing materials with different stiffnesses can be obtained. The stiffness of the 3D printing material can be increased by increasing the ratio of the pure hard material, or the elasticity of the 3D printing material can be increased by increasing the ratio of the pure soft material.

[0059] In selectable embodiments of the present invention, a 3D printing material having a predetermined rigidity can be obtained by adjusting the ratio of the pure soft material to the pure hard material to a predetermined ratio, and the cavity structure of the internal pressure-applying sports equipment can be printed with this 3D printing material. In selectable embodiments of the present invention, a 3D printing material with greater support capacity and higher rigidity can be obtained by setting the ratio of the pure soft material to the pure hard material to 3:7. In selectable embodiments of the present invention, various 3D printing materials with different ratios of the pure soft material to the pure hard material can be manufactured in advance. For example, various 3D printing materials with ratios of 1:1, 3:7, 2:3, and 7:3 can be manufactured in advance. When printing the cavity structure of the internal pressure-applying sports equipment, 3D printing materials with different ratios of components can be used to form areas with different elasticity or support capacity in the cavity structure of the internal pressure-applying sports equipment. In that case, without changing the physical structure of the individual cavities of the cavity structure of the internal pressure-applying sports equipment, various areas with different elasticity or support force can be formed, the cavity structure of the internal pressure-applying sports equipment can be designed in various forms, the cavity structure of the internal pressure-applying sports equipment of the present invention can be manufactured using various manufacturing methods, and various personalization and customization can be achieved.

[0060] In an embodiment of the present invention, a cavity structure for a pressure-applying sports equipment is further provided. The cavity structure for the pressure-applying sports equipment is manufactured by the method for manufacturing the pressure-applying sports equipment cavity structure. Various cavity structures for pressure-applying sports equipment with different structures are provided to meet the various needs of users when playing sports. This provides cavity structures for pressure-applying sports equipment with different elasticity or support in each area, ensuring the user's sports performance and protection. Furthermore, various personalized customization services can be provided to users, various requirements for cushioning materials of sports equipment can be met, the range of use can be expanded, the structure can be avoided by the mold, and various user requirements can be met.

[0061] In an embodiment of the present invention, an application is further provided for using the cavity structure of a pressure-applying sports equipment as a cushioning material for sports equipment. The pressure-applying sports equipment cavity structure is manufactured by the method for manufacturing the pressure-applying sports equipment cavity structure. Because the demands for cushioning material differ for each piece of sports equipment, various areas with different elasticity or support capacity are formed in the pressure-applying sports equipment cavity structure. This allows for meeting the predetermined demands for cushioning material for each piece of sports equipment, expanding the range of use, avoiding the structure being merely a mold, and meeting the diverse requirements of users.

[0062] As described above, the present invention provides a cavity structure for a pressure-applying sports equipment, a method for manufacturing the same, and an application in an embodiment of the present invention. The method for manufacturing the cavity structure for the pressure-applying sports equipment includes the steps of: acquiring mechanical data of the cavity structure of the pressure-applying sports equipment; forming cavity distribution data, cavity structure data, and cavity pressure data from the mechanical data; determining a cavity structure model from the cavity distribution data, cavity structure data, and cavity pressure data; and printing the cavity structure of the pressure-applying sports equipment by inputting the cavity structure model into a 3D printer. The present invention forms a predetermined cavity structure with various functional areas designed using mechanical data and determines an actual printing model. Next, the printing process obtains a cavity structure for a pressure-applying sports equipment having structures corresponding to various functional areas and a predetermined internal pressure, thereby enabling various personalized customizations for the user.

[0063] Although the aspects of the present invention have been described in detail above with reference to preferred embodiments, these preferred embodiments are merely illustrative examples of the present invention, and therefore the present invention is not limited to these embodiments. Persons skilled in the art can make design changes, improvements, etc., within the scope that does not depart from the technical aspects and the gist of the invention, and such design changes, improvements, etc., will naturally still be included within the scope of the claims of the present invention.

Claims

1. Steps to obtain mechanical data of the cavity structure of a sports equipment that applies internal pressure, The steps include forming cavity distribution data, cavity structure data, and cavity pressure data using the aforementioned mechanical data, The steps include determining the cavity structure model using the cavity distribution data and the cavity structure data, A method for manufacturing a cavity structure for an internal pressure-applying sports equipment, comprising the step of inputting the cavity structure model into a 3D printer to print the cavity structure of the internal pressure-applying sports equipment.

2. The step of obtaining mechanical data of the cavity structure of the aforementioned internal pressure-applying sports equipment is: A 3D model of the cavity structure of the internal pressure-applying sports equipment is formed by the user's body parts corresponding to the cavity structure of the internal pressure-applying sports equipment. The force sensor detects load data of the user's body part, A method for manufacturing a cavity structure of an internal pressure-applying sports equipment according to claim 1, characterized by comprising forming mechanical data of the 3D model using the load data.

3. The step of forming cavity distribution data, cavity structure data, and cavity pressure data using the aforementioned mechanical data is: To obtain elasticity data and bearing capacity data from the aforementioned mechanical data, Based on the elasticity data and the support force data, the support force area and elasticity area on the cavity structure of the internal pressure-applying sports equipment are obtained. The cavity distribution data is formed by the bearing capacity area and the elasticity area, The method for manufacturing a cavity structure of an internal pressure-applying sports equipment according to claim 2, characterized by comprising forming the cavity structure data and the cavity pressure data using the elasticity data and the support force data.

4. The cavity distribution data includes cavity connection relationships, area cavity density, and number of structural layers. The aforementioned cavity connection relationship refers to the connection relationship between adjacent cavities. The aforementioned area cavity density refers to the number of cavity structures arranged in a unit area on a single horizontal plane. The method for manufacturing a cavity structure for an internal pressure-applying sports equipment according to claim 3, characterized in that the number of structural layers refers to the number of layers of the cavity structure in the vertical direction.

5. The cavity structure data includes the cavity shape, cavity size, and cavity wall thickness. The aforementioned cavity shape is the shape of a single cavity, The aforementioned cavity size refers to the length of a single cavity in each direction in 3D space. The method for manufacturing a cavity structure for a pressure-applying sports equipment according to claim 3, characterized in that the cavity wall thickness is the thickness of the side wall of a single cavity.

6. The method for manufacturing a cavity structure for an internal pressure-applying sports equipment according to claim 5, characterized in that the cavity shape includes elliptical, spherical, rectangular, cubic, and octahedral shapes.

7. The method for manufacturing a cavity structure for an internal pressure-applying sports equipment according to claim 3, characterized in that the cavity pressure data includes the internal pressure of the cavity, the internal pressure of the cavity represents the pressure value inside a single cavity, and the internal pressure of the cavity is 1 atm or more.

8. The step of printing the cavity structure of the internal pressure-applying sports equipment by inputting the cavity structure model into a 3D printer is as follows: The cavity structure model is input into the 3D printer, and the initial printing position is determined. Printing a single cavity equipped with an airbag structure at the initial printing position, The method for manufacturing a cavity structure for an internal pressure-applying sports equipment according to claim 1, characterized in that it includes forming the cavity structure of the internal pressure-applying sports equipment by repeating the printing process of the individual cavity using the cavity structure model.

9. The method for manufacturing a cavity structure for a pressure-applying sports equipment according to claim 7, wherein the step of printing the cavity structure of the pressure-applying sports equipment by inputting the cavity structure model into a 3D printer that is at normal pressure inside or into a 3D printer that has a pressure-boosting module installed inside is characterized in that the resin material used for 3D printing is selected based on the cavity structure model.

10. A cavity structure for a pressure-applying sports equipment, characterized in that the cavity structure for the pressure-applying sports equipment is manufactured by the method for manufacturing a pressure-applying sports equipment cavity structure described in any one of claims 1 to 9.

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