WO2023069780A1

WO2023069780A1 - Methods for manufacturing individualized protective gear from scan and resulting products

Info

Publication number: WO2023069780A1
Application number: PCT/US2022/047593
Authority: WO
Inventors: Michael Zabala; Vitale CASTELLANO; Jacob Larson; Austin HARRIS
Original assignee: Auburn University
Priority date: 2021-10-22
Filing date: 2022-10-24
Publication date: 2023-04-27

Abstract

A method for manufacturing individualized protective gear such as pads based on a scan, and the resulting pads, are disclosed herein. A garment comprising a pocket with a visibly defined border is selected. A wearer dons the garment. A scan is taken of at least a portion of the garment over the wearer's body at the location where the pocket is disposed over the wearer's body. The scan is converted to a mesh model. The mesh model is used to define a first surface of the equipment configured to form to the wearer's body at the location where the pocket is disposed over the wearer's body and a second surface offset from the first surface. The model may be checked to identify production defects, which, if present, are removed. The equipment may be manufactured using additive printing technology.

Description

METHODS FOR MANUFACTURING INDIVIDUAEIZED PROTECTIVE GEAR FROM SCAN AND RESULTING PRODUCTS

Applicant

Auburn University

Inventors:

Michael Zabala

Vitale Kyle Castellano

Jacob Larson

Austin J. Harris

CROSS-REFERENCE TO OTHER APPLICATIONS

[0001] This application claims the benefit of filing of US Provisional Patent Application No. 63/262,933, filed on October 22, 2021, which is incorporated by reference herein.

BACKGROUND OF THE ART

[0002] Additive printing permits the creation of a three-dimensional object by depositing thermoplastic material onto a base or filler such that the object is produced by cumulatively adding material in a defined process. Additive printing permits objects to be fabricated using customizable or personalizable designs. However, such personalized products are also time consuming to measure and define. This is particularly the case where personal body measurements are required, such as with personal protective equipment as is used in sports and athletics. Furthermore, to make a well-customized design, the product should also take into account differences in individuals' bodies that are not easily measured, e.g., for a shin guard, the curvature of shin or the bow of a leg should be measured. In addition, current processes for preparing personalized equipment limit which elements of the equipment users may change to the contact surface only, rather than permitting changes to size, thickness, etc. [0003] What is needed, then is a process for obtaining personal body measurements and characteristics in a manner that obtains a full scan of the body measurement and permits readily accessibly customization of different specifications of desired equipment for rapid, unique manufacturing.

SUMMARY OF THE INVENTION

[0004] In some respects the disclosure concerns a method for fabricating equipment to be worn on a wearer's body, having the steps of selecting a garment comprising a marked section with a visibly defined border; donning the garment on the wearer's body; obtaining a scan of at least a portion of the garment as worn on the wearer's body at the location where the marked section is disposed over the wearer's body; preparing a wearer mesh model derived from the scan at the location where the marked section is disposed over on the wearer's body; preparing a model of the equipment, the equipment having a first surface configured to form to the garment at the location where the marked section is disposed over the wearer's body and a second surface offset from the first surface; checking the model of the equipment to identify production defects and, if a production defect is present, removing the defect; and manufacturing the equipment.

[0005] In other respects the disclosure concerns a method for fabricating equipment having a shell portion and a liner portion to be worn by a wearer, having the steps of selecting a garment comprising a pocket with a visibly defined border; donning the garment on the wearer's body; obtaining a scan of at least a portion of the garment at the location where the pocket is disposed over the wearer's body; preparing a wearer mesh model derived from the scan at the location where the pocket is disposed over the wearer's body; preparing a model of the shell, the shell having a first surface defined by the wearer mesh model and a second surface translationally offset from and identical to the first surface; checking the model of the shell to identify production defects and, if a production defect is present, removing the defect; preparing a model of a liner by flattening the model of the shell; additively manufacturing the shell; manufacturing the liner; and attaching the liner to the shell. [0006] Other aspects of the invention are described further with respect to the detailed description and the claims.

BRIEF DESCRIPTION OF DRAWINGS

[0007] Figures 1A-1C are flow charts showing various steps in an exemplary method according to one embodiment of the disclosure.

[0008] Figure 2 depicts an exemplary user interface for selecting desired gear for manufacture, according to one embodiment of the disclosure.

[0009] Figure 3 depicts instructions for a user to obtain a body scan using a smartphone, according to one embodiment of the disclosure.

[0010] Figures 4A and 4B depict scan previews obtained from a smartphone camera with depth-sensing technology, according to embodiments of the disclosure.

[0011] Figure 5 depicts an exemplary customization interface, according to one embodiment of the disclosure.

[0012] Figure 6 depicts an exemplary purchase screen and shopping cart, according to one embodiment of the disclosure.

[0013] Figure 7 depicts a mesh model for a shin guard based on a surface area of a wearer's leg, according to one embodiment of the disclosure.

[0014] Figure 8 depicts a thickened mesh for preparing a shell of thickness f, according to an embodiment of the disclosure.

[0015] Figures 9A-9C are flow charts showing various steps in another exemplary method according to one embodiment of the disclosure.

[0016] Figure 10 depicts a front elevation view of a garment having marked sections with visibly defined borders according to one embodiment of the disclosure. In Figure 10, the garment is a bra.

[0017] Figure 11 depicts a front elevation view of another garment having marked sections with visibly defined borders according to one embodiment of the disclosure. In Figure 11, the garment is a shirt. [0018] Figure 12 depicts a front elevation view of another garment having marked sections with visibly defined borders according to one embodiment of the disclosure. In Figure 12, the garment is also a shirt.

[0019] Figure 13 depicts a front elevation view of another garment having marked sections with visibly defined borders according to one embodiment of the disclosure. In Figure 13, the garment is a pair of pants.

[0020] Figure 14 depicts a front elevation view of another garment having pockets with visibly defined borders according to one embodiment of the disclosure. In Figure

14, the garment is a shirt.

[0021] Figure 15 depicts a front elevation view of another garment having pockets with visibly defined borders according to one embodiment of the disclosure. In Figure

15, the garment is a shirt.

DETAILED DESCRIPTION

Introductory Information and Definitions

[0022] Disclosed herein are systems and methods for manufacturing individualized protective equipment for a human person, such as a shin guard, knee pad, elbow pad, chest protector, helmet, shoulder pad, shoulder brace, rib protector, thigh pads, hip pads, or similar protective gear. Such devices typically include at least one substantially more rigid element fabricated from materials such as metal, carbon fiber filaments, hard plastics (e.g., polylactic acid (PLA), acrylonitrile butadiene styrene (ABS), polyethylene terephthalate glycol, or rubbery thermoplastics (e.g., thermoplastic polyurethane or thermoplastic elastomers) and at least one soft element fabricated from foamed plastics, such as ethylene-vinyl acetate (EVA) or neoprene. These materials are not intended to be exclusive, and other materials known for use in additive printing may be used in their place. "Gear" in this disclosure means the wearable pad, equipment, or device in its conceived or final form. "Shell" in this disclosure refers to the hard elements of a gear. A shell may be on an external facing side of the gear (as in a shin guard or helmet), an internal or body-facing side of the gear (as used in some elbow or knee pads), or integrated within the gear (as may be done on a baseball chest protector). "Liner" in this disclosure refers to the soft and/ or foamed elements of the gear. Again, the liner may be on the external surface of the gear (as in some elbow pads or knee pads), the internal or body-facing surface of the gear (as in a shin guard or helmet), or surrounding the shell (as in a chest protector).

[0023] Protective equipment such as those listed above may be mass manufactured to standard sizes. However, such mass produced products may not have the best size, shape, or fit for any individual wearer. The systems and methods described herein address this disadvantage by allowing for rapid production of individualized protective equipment using body scans of an individual's body part or region being protected. It will be understood that the methods of scanning described herein are not limited to scanning the body of a user but may be used to scan other features such as a fit area, garment, or sports equipment, which may be on or worn by a wearer. Furthermore, even if standard sizes are being relied upon, their placement, location, and fit on each person may be different. At sufficiently advanced levels of skill, players and equipment managers will desire to ensure that equipment covers the correct locations for protection while not unnecessarily impeding body movement. The systems and methods described herein may assist players with selecting and locating standard-sized equipment on their body during wear.

[0024] In describing some of the embodiments depicted herein, the systems and methods will be described primarily in relation to the manufacture of a shin guard, such as is used in playing soccer or football. With respect to other embodiments, the systems and methods are described primarily in relation to the manufacture pads that may be integrated into a shirt or jersey. However, the systems and methods may be used in connection with the production of any of bodily protective gear or equipment, and the steps and systems described herein may be modified by a person of skill in the art to account for the different shapes of the body part or region or the manufacture of specific types of equipment. Therefore, while the embodiments will be described herein with reference to a shirt or jersey with respect to particular clothing, or to the shin as the particular body part being protected and the production of a shin guard, it should be understood that such embodiments may be adapted for scanning and protecting any desired surface region of the body or wearable product and preparing a pad or other or protective equipment therefore.

[0025] As used in this disclosure and the claims, the word "about" when used in reference to a distance means within 10% plus or minus the stated distance.

[0026] A computer may be a uniprocessor or multiprocessor machine, in the form of a desktop, laptop, remote server, tablet computer, smartphone, or other computing device. Accordingly, a computer may include one or more processors and, thus, the aforementioned computer system may also include one or more processors. Examples of processors include sequential state machines, microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on a chip (SoC), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), gated logic, and other suitable hardware configured to perform the various functionality described throughout this disclosure.

[0027] Additionally, the computer may include one or more memories. Accordingly, the aforementioned computer systems may include one or more memories. A memory may include a memory storage device or an addressable storage medium which may include, by way of example, random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), electronically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), hard disks, floppy disks, laser disk players, digital video disks, compact disks, video tapes, audio tapes, magnetic recording tracks, magnetic tunnel junction (MTJ) memory, optical memory storage, quantum mechanical storage, electronic networks, and/ or other devices or technologies used to store electronic content such as programs and data. [0028] In particular, the one or more memories may store computer executable instructions that, when executed by the one or more processors, cause the one or more processors to implement the procedures and techniques described herein. The one or more processors may be operably associated with the one or more memories so that the computer executable instructions can be provided to the one or more processors for execution. For example, the one or more processors may be operably associated to the one or more memories through one or more buses. Furthermore, the computer may possess or may be operably associated with input devices (e.g., a keyboard, a keypad, controller, a mouse, a microphone, a touch screen, a sensor) and output devices such as (e.g., a computer screen, printer, or a speaker).

[0029] The computer may execute an appropriate operating system such as LINUX®, UNIX®, MICROSOFT® WINDOWS®, APPLE® MACOS®, IBM® OS/2®, ANDROID®, and PALM® OS, and/or the like. The computer may advantageously be equipped with a network communication device such as a network interface card, a modem, or other network connection device suitable for connecting to one or more networks/

[0030] A computer may advantageously contain control logic, or program logic, or other substrate configuration representing data and instructions, which cause the computer to operate in a specific and predefined manner as, described herein. In particular, the computer programs, when executed, enable a control processor to perform and/ or cause the performance of features of the present disclosure. The control logic may advantageously be implemented as one or more modules. The modules may advantageously be configured to reside on the computer memory and execute on the one or more processors. The modules include, but are not limited to, software or hardware components that perform certain tasks. Thus, a module may include, by way of example, components, such as, software components, processes, functions, subroutines, procedures, attributes, class components, task components, object-oriented software components, segments of program code, drivers, firmware, micro-code, circuitry, data, and the like. [0031] The control logic conventionally includes the manipulation of digital bits by the processor and the maintenance of these bits within memory storage devices resident in one or more of the memory storage devices. Such memory storage devices may impose a physical organization upon the collection of stored data bits, which are generally stored by specific electrical or magnetic storage cells.

[0032] The control logic generally performs a sequence of computer-executed steps. These steps generally require manipulations of physical quantities. Usually, although not necessarily, these quantities take the form of electrical, magnetic, or optical signals capable of being stored, transferred, combined, compared, or otherwise manipulated. It is conventional for those skilled in the art to refer to these signals as bits, values, elements, symbols, characters, text, terms, numbers, files, or the like. It should be kept in mind, however, that these and some other terms should be associated with appropriate physical quantities for computer operations, and that these terms are merely conventional labels applied to physical quantities that exist within and during operation of the computer based on designed relationships between these physical quantities and the symbolic values they represent.

[0033] It should be understood that manipulations within the computer are often referred to in terms of adding, comparing, moving, searching, or the like, which are often associated with manual operations performed by a human operator. It is to be understood that no involvement of the human operator may be necessary, or even desirable. The operations described herein are machine operations performed in conjunction with the human operator or user that interacts with the computer or computers.

[0034] It should also be understood that the programs, modules, processes, methods, and the like, described herein are but an exemplary implementation and are not related, or limited, to any particular computer, apparatus, or computer language. Rather, various types of general-purpose computing machines or devices may be used with programs constructed in accordance with some of the teachings described herein. In some embodiments, very specific computing machines, with specific functionality, may be required. Similarly, it may prove advantageous to construct a specialized apparatus to perform the method steps described herein by way of dedicated computer systems with hard-wired logic or programs stored in nonvolatile memory, such as, by way of example, read-only memory (ROM).

[0035] In some embodiments, features of the computer systems can be implemented primarily in hardware using, for example, hardware components such as application specific integrated circuits (ASICs) or field-programmable gated arrays (FPGAs). Implementation of the hardware circuitry will be apparent to persons skilled in the relevant art(s). In yet another embodiment, features of the computer systems can be implemented using a combination of both general-purpose hardware and software.

[0036] The protective gear and equipment manufactured according to the embodiments may be fabricated using additive manufacturing technology, also known as 3D printing. Currently the most common form of additive manufacturing is fused filament fabrication or fused deposition modeling. In this method of printing a continuous filament of thermoplastic material is deposited onto a printed body by an extruder head moving over the body. The body may be supported by filler material or vertical support structures for producing overhanging elements of the body. The systems and methods will be described herein primarily with reference to fused filament fabrication, but it should be understood that the products produced by the processes and systems herein may be manufactured using other additive manufacturing technologies or non-additive manufacturing technologies.

The Methods and the Resulting Product

[0037] Figures 1A-1C depict flow charts showing general procedures for manufacturing protective equipment using a scan of the body region or part to be protected. The steps and systems referred to in Figures 1A-1C will be further described individually below. The method has the following major steps depicted in Figure 1A, most of which are divided into sub-steps described further below and depicted in Figures 1B-1C: end-user characterization of the gear to be manufactured 100; automated or software machine characterization of the gear 110; modeling of the gear shell 120; modeling of the gear liner 130; manufacturing of the shell and liner 140; attachment of the liner to the shell 150; and delivery to the customer 160.

[0038] In the step of end-user characterization of the gear 100, the user first selects the desired gear to be manufactured 102. This may be done using a computer, such as a desktop, laptop, tablet computer, or mobile device such as a smartphone using a software application programmed to execute the steps of walking the user through the device selection. A smartphone mobile application interface design permitting a user to select the desired gear is depicted in Figure 2.

[0039] Next, the user is directed to take a body scan of the body part or region to be protected 104. A body scan may be obtained by various means known to the person of ordinary skill. For example, the body scan data may be obtained from a scanning machine using LiDAR, a structured-light 3D scanner, or other scanning technologies. For such machines or equipment, the scanning system may be programmed to obtain a scan and related metrical data automatically after being instructed to take a scan of the applicable body part or region. Alternatively, the body scan may be obtained using a smartphone or tablet device equipped with LiDAR technology or depth-sensing cameras (such as the TRUEDEPTH® dual-camera depth-sensing technology currently used on the IPHONE®). If the body scan uses a smartphone, tablet, or other LiDAR- or camera-based handheld device, the user may be instructed to take an image of the applicable location of the body. One or more scans may be required to obtain full coverage of the applicable body part or region. For example, a shin guard, which is applied to the front shin of the wearer's leg, may only need a single scan to capture the applicable part of the leg. Alternatively, multiple scans may be necessary to provide a full scan of a player's shoulders to manufacture shoulder pads. Figure 3 depicts instructions for a user to obtain a body scan using a smartphone. Figures 4A and 4B depict scans obtained from a smartphone camera with depth-sensing technology, as may be used on a smartphone or tablet device, and requests for user confirmation of the scan.

[0040] Next the user may view and manipulate the scanned data behind the selected pad shape 106. For example, as shown in Figure 4A and 4B, the outline of a shin guard may be superimposed against the scan. The user may have several options for manipulating the pad. For example, the user may locate the pad at a given location. The user may define the size of the desired pad, such as by changing the length of the pad going up or down the shin to be longer or shorter, or changing the width of the pad to be wider or narrower. Alternatively, the rendering of the pad may be fixed, and the scanned data of the body shown behind the rendering may be zoomed in or out until sized to the user's preference. The user may also modify other elements of the pad, such as the thickness of the liner or the shell. The user may also rotate the pad. If available from the manufacturer, the user may also specify any cosmetic details, such as the color or an image printed on the shell. After the user has manipulated the pad to obtain the desired shape and body coverage area, the user may view a model of the completed product 108. This imagery may be produced by applying a mock-up of the product over the scanned data, by use of augmented reality, or other visual techniques. After the user completes the selection and customization of the pad, the user may purchase the pad. An example customization screen is shown in Figure 5. An example purchase screen and shopping cart are shown in Figure 6.

[0041] Once the user confirms the purchase, the data from the scan and related user customization undergoes software-directed automated characterization 110 to define the product models for manufacture. Automated characterization may first include one or more steps to confirm the usability of the body scan 112. For example, the scan may be reviewed to determine if it is corrupted. It may also be inspected to confirm that scan data is available for the entire body part underneath the shape boundary defined by the user. These inspections may be performed during the course of the user characterization steps to ensure a proper scan image and user-customized pad are provided. For example, if the file is corrupted or the scan data is incomplete, the software may perform the check, determine the scan is not usable, and direct the user to rescan. As another example, if the user widens the pad width so much that it no longer fits within the underlying body scan, the user may be blocked from setting the pad that wide or may be directed to select a different size, and the user may be blocked from proceeding until an appropriate pad size is depicted.

[0042] Next, scan data from outside of the pad boundary may be removed 114. This step saves processing time and data storage by removing unnecessary data from the remainder of the data processing steps.

[0043] A mesh model is prepared using the remainder of the body scan data 116. A figurative example of a mesh model 10 as based on underlying scan data obtained from a body scan of a location 12 is depicted in Figure 7. The mesh model 10 provides the underlying data structure from which the pad is designed. A mesh model may be generated using any known mesh modeling techniques (e.g., face-vertex meshes, winged-edge meshes, half-edge meshes, quad-edge meshes, vertex-vertex meshes, etc. Preferably the mesh model 10 has a high resolution (e.g., at least 0.1 mm) to provide a detailed representation of the physiometry of the end-user's scanned body part or region 12.

[0044] The mesh preparation process is described herein. To prepare the mesh model, the body surface data is down-sampled to provide uniform vertex spacing across the body surface that is within the pad outline. A center of origin is identified to create quantifiable mesh design along the three spatial axes for proper alignment for manufacturing. Next, the surface data is smoothed to remove noise from the data. Each vertex in the mesh is replaced with new vertices based on the average location of the nearest vertex neighbors. After this, the smoothed surface data is transformed into a mesh. Different meshing techniques may be used. For purposes of example, this disclosure uses a triangulated mesh, wherein the vertices are connected into triangular surface elements forming the surface mesh. After triangulation, the normal direction of each vertex forming the mesh is checked and aligned. This is crucial for shapes with complex curvature, as a mismatched vertex normal will cause other surfaces of the three- dimensional model to shift in different directions and create invalid geometries for manufacturing purposes. [0045] The next step is preparing the pad model based off of the body scan mesh 120. The pad is derived from the user's physiometric parameters as defined in the mesh. For this portion of the process, the first step 122 is applying a thickness offset 14 to the three-dimensional mesh surface 10. The thickness offset 14 may be pre-set, or it may be identified by the end-user as part of the product customization prior to purchase. The 3D mesh prepared by the user and software is given a thickness f of the desired amount. For example, for a shin guard, the thickness may be about 3 mm. The user may also select a different thickness, e.g., 2 mm, 4 mm, or 5 mm. The mesh is then offset in the desired orientation. In most instances the mesh is laterally translated the offset distance in a desired direction, e.g., for shin guards, the offset is directly outward from the "forward" orientation of the leg. An example of a thickened mesh model 16 having a translational offset 14 such as for a shin guard is shown in Figure 8. The thickness f in Figure 8 is overly large to figuratively depict a first surface 18 (shown here as the surface that would face the wearer⁷ s leg) and a second surface 20 (shown here as the surface facing away from the wearer's leg). The first surface 18 and the second surface 20 are substantially identical.

[0046] For other pads, the offset direction may be different. For example, shoulder pads may be offset orthogonally from the differential location of the shoulder (such that the pad appears to expand radially around the shoulder) rather than translationally. The result of the offset is a product design having two new, user-defined surfaces. The first surface is the interior surface of the foam liner for creating a fit between the inner surface of the 3D model and the body of the user. The second surface is the exterior surface of the pad. The model is then checked again for any intersection between the two surfaces. Intersection is typically caused by excessive down sampling and vertex normal mismatching. This problem is addressed by creating finer meshes and restarting the three-dimensional model generation process. The program will keep refining the mesh until two surfaces are created without intersection.

[0047] After the offset, the mesh surface should still be identical to the surface of the mesh as originally prepared from the body scan data, although depending on the direction of the offset, it may be proportionally larger or smaller (e.g., if the offset is direction oriented orthogonally or radially, rather than laterally). The surface should also be identical on both the interior surface (that surface facing and typically adjacent to the skin of the wearer) and the exterior surface. However, depending on how the offset is applied and oriented, particular areas of the thickened mesh may suffer from one or more production defects. For example, such production defects may include one or more of overlapping surfaces, locations where a sharp point or edge appears, unexpected holes or curves, or violations of maximum or minimum thickness. In such cases, if the mesh design is repairable, the software may modify the pad to meet applicable design specifications 124, e.g., smooth over areas where a hole appears, or limit the thickened mesh to designated maximum or minimum thicknesses. If the mesh design in not repairable, the production may be cancelled and the end user may be notified.

[0048] Edge vertices are identified for both offset surface meshes. This process is performed by identifying edges that belong to only one face for each respective surface, and then storing vertex data from those edges. After vertex data is gathered, one edge vertex is chosen at random to index the order of points around the edge loop in the order that they appear based on the minimum distance between edge points. With edge vertices ordered, the edge data is linearly interpolated to increase edge point data. After edge data is increased, the edge vertices can be spline fit to varying degrees based on user preference. This further refines the edges of the offset surfaces to reduce sharp and otherwise jagged edges. After spline fit edges are created, previous edge data is removed from the mesh and replaced with the new spline fit vertex data. The two spline fit edges are meshed in a similar fashion as the two surface meshes to create a triangulation between the edges of the two surfaces. Point normals for the boundary mesh are calculated and aligned, and then combined with the two offset surface meshes. This completes the generation of the three-dimensional product model.

[0049] Once the offset mesh is prepared, the gear design is identified by an individual serial number and saved within the memory or hard disk storage of the system 126. This is the completed design file. The completed design file is exported to the manufacturing system processors 128. [0050] Manufacturing proceeds in parallel steps for both the liner and the shell. Turning first to manufacture of the liner 130, the mesh surface provided in the completed design file is flattened to provide a liner design 132. (Alternatively, this flattening may occur prior to export to the manufacturing processors.) The flattening technique uses an isomapping process which mathematically flattens the inner surface mesh by maintaining the distance between vertices and face area as closely as possible over many iterations. The edge data of this flattened surface is extracted and exported as a vector file for use in manufacturing to create the outline of padding which will fit perfectly to the 3D model. This liner design is then serialized and saved to the system 134 and exported to a foam liner cutting machine for cutting out the liner 136. The cutting machine cuts out the liner. 138.

[0051] Meanwhile the completed design file is prepared for printing in additive printing machine 140. The design may be oriented for manufacture in a manner that reduces the need for fillers or vertical supports and reduces printing time 142. For example, a shin guard may be oriented such that the length of the pad is additively printed vertically, with each layer building upon the one below it. This reduces the need for vertical support to covering just a thin bottom layer. Such an orientation may also provide increased material impact strength. An example of this orientation of a shin guard is shown in Figure 5. Once oriented for design, the design for the shell of the pad is provided to the printer for manufacture by additive printing 144.

[0052] Once the liner has been cut and shell printed, the liner is attached to the shell 150. The attachment may be achieved by adhesive applied to the liner and shell for a permanent bond. This may be done in a vacuum chamber to provide for complete adhesion across both surfaces. This completes production of the pad. The pad may then be shipped to the user 160.

[0053] Figures 9A-9C depict flow charts showing general procedures for another method of manufacturing protective equipment using a scan of the body region or part to be protected. In this embodiment, the protective equipment is manufactured according to a standard design that is tailored to custom fit a user. The steps and systems referred to in Figures 9A-9C will be further described individually below. The method has the following major steps depicted in Figure 9 A, most of which are divided into sub-steps described further below and depicted in Figures 9B-9C: end-user characterization of the gear to be manufactured 200; automated or software machine characterization of the gear 210; modeling of the gear shell 220; modeling of the gear liner 230; manufacturing of the shell and liner 240; attachment of the liner to the shell 250; and delivery to the customer 260.

[0054] In the embodiment of Figures 9A-9C, the step of end-user characterization 200 may comprise selecting a garment 22 having one or more marked sections 24 with visibly defined borders 26 (collectively referred to herein as step 202). The marked sections 24 may in some instances take the form of pockets 30 secured to the garment 22. The marked sections 24 may be shaped and arranged to form a standard design. As used herein with respect to the pockets 24, "standard design" refers to the location and shape of the marked sections 24 outlined by the visibly defined border 26.

[0055] The garment 22 may be configured to form to a wearer's body. In some embodiments, the garment may be elastic or at least partially made from an elastic material that conforms to the body of a wearer. For example, the garment 22 may be made from materials including but not limited to polyester, nylon, lycra, or spandex. The garment 22 may be any type of garment 22 used to secure gear 28 to a sports player, for example, a sports bra, shirt, or pants as shown in Figures 10, 11-12, and 13, respectively. In embodiments where the garment 22 is a sports bra, such as the embodiment shown in Figure 10, the garment 22 may comprise one or more marked sections 24 over, for example, the breast region. In embodiments where the garment 22 is a shirt, such as the embodiments shown in Figures 11-12, the garment 22 may have one or more marked sections 24 over the shoulder, chest, abdomen, back, and/ or rib regions. In embodiments where the garment 22 is a pair pants, such as the embodiments shown in Figure 13, the garment 22 may comprise one or more marked sections 24 over the hip, thigh, knee, shin, calf, or ankle regions. In some cases, a standard design may be created for a particular sports team or sports league. For example, a sports league may desire for all players in the league to have gear of the same standard design and may create a standard design that conforms to the league's safety standards.

[0056] In some embodiments, the visibly defined border 26 of the marked sections 24 may be formed by securing pockets 30 to the garment 22 using stitching of a color that contrasts with the color of the garment 22 and/ or pockets 30. For example, the visibly defined border 26 shown in Figures 10-13 may be formed by securing white pockets to a white garment 22 with black stitching. In other embodiments, the visibly defined border 26 of the pockets 30 may be formed by securing pockets 30 of a color that contrasts with the color of the garment 22 to the garment 22. For example, black pockets 30 may be attached to a white garment 22 as shown in Figures 14-15 (In Figures 14-15, hatching on pockets 30 is used to indicate the solid color of the pockets 30.). In further embodiments, the visibly defined border 26 may be present when no pocket is present. For example, the garment 22 may comprise a fit area defined as a marked section 24 having a visibly defined border 26 formed by a printed or embroidered line or shape on the garment 22. The method made still be performed when no pocket is present as the fit area may be used in place of the pocket 30 unless specified otherwise.

[0057] The arrangement and shape of the marked sections 24 or fit areas on the garment 22 may correspond to the desired arrangement and shape of gear 28 to be manufactured. Accordingly, with respect to the gear 28 to be manufactured, "standard design" may refer to the location and shape of gear 28, which corresponds to the location and shape, i.e., standard design, of the marked sections 24, pockets 30, or fit areas. In some embodiments, the standard design of gear 28 may also refer to the thickness and/or exterior surface features of the gear. "Standard-design, custom-fit" customization refers to a standard design for the gear having a custom fit, i.e., the shape of the interior surface or other features of the gear that affect how the gear conforms to the body of the wearer. A user may be able to choose a desired standard design for the gear 28 to be manufactured by selecting from several garments 22 having different standard designs of the marked sections 24. [0058] In some embodiments, the step of end-user characterization of the gear 200 may involve a computer, such as a desktop, laptop, tablet computer, or mobile device such as a smartphone using a software application programmed to execute the steps of walking the user through the device selection. The user may be asked to confirm the garment 22 and/ or the standard design on the garment 22 that was selected.

[0059] After selecting the garment, the user may don the garment 204. The garment 22 may be sized such that the garment 22 conforms to the user's body when the garment 22 is donned. The user may be asked to confirm that the garment 22 is donned correctly, i.e., not rotated or shifted on the user's body.

[0060] Next, the user is directed to take a scan of the garment over the body part or parts on which the marked section lies 206. A scan may be obtained by various means known to the person of ordinary skill. Various devices and/ or techniques for scanning the body are discussed above. For example, the scan data may be obtained from a scanning machine using LiDAR, a structured-light 3D scanner, or other scanning technologies. For such machines or equipment, the scanning system may be programmed to obtain a scan and related metrical data automatically after being instructed to take a scan of the applicable body part or region on which the marked section 24 lies. Alternatively, the scan may be obtained using a smartphone or tablet device equipped with LiDAR technology or depth-sensing cameras (such as the TRUEDEPTH® dualcamera depth-sensing technology currently used on the IPHONE®). Also alternatively, photogrammetric techniques may be used to analyze standard digital images such as those taken on a camera phone without the need for specialized equipment or devices such as LiDAR technology or depth-sensing cameras. If the scan uses a smartphone, tablet, or other LiDAR- or camera-based handheld device, the user may be instructed to take an image of the garment over the body part over which the marked section 24 lies. One or more scans may be required to obtain full coverage of the garment over the applicable body part or region over which the marked section lies. After the scan is complete, the viewer may view the scan to confirm that the entire area within the visibly defined border 26 of the marked section 24 is captured by the scan 208. [0061] If multiple marked sections 24 are to be scanned, the user may be directed to scan another marked section 24 and view the scan of that marked section 24 to confirm that the entire area within the visibly defined border 26 of the marked section 24 is captured by the scan area. This process may be repeated until all marked sections 24 are scanned. In some embodiments, the user may be directed to scan the marked sections 24 in a specified order. In other embodiments, the user may be asked to confirm which marked section 24 is contained in the scan before or after scanning the marked section 24.

[0062] Next, the user may modify elements of the gear 28 to be manufactured that are not fixed by the standard design 212. For example, in some embodiments, the user may be able to modify characteristics such as the thickness of the gear 28, the composition of the gear 28, or the shape of the external surface of the gear 28 (e.g. by adding an embossment or indentation to the surface, which may be in the form of an image, brand, or logo). The user may also be able to specify cosmetic details such as the color of the gear 28 or an image printed on the shell or exterior surface of the gear 28. After the user completes any allowed customization of the gear 28, the user may purchase the gear 28.

[0063] Once the user confirms the purchase, the data from the scan and related user customization undergoes software-directed manual or automated characterization 210 to define the product models for manufacture. Automated characterization may first include one or more steps to confirm the usability of the scan 214. For example, the scan may be reviewed to determine if it is corrupted. It may also be inspected to confirm that scan data is available for the entire body part underneath the shape boundary defined by the user. These inspections may be performed during the course of the user characterization steps to ensure a proper scan image and user-customized pad are provided. For example, if the file is corrupted or the scan data is incomplete, the software may perform the check, determine the scan is not usable, and direct the user to rescan. As another example, if the scan does not capture the entire area within the visibly defined border, the user may be directed to take another scan of the body part over which the marked section lies, and the user may be blocked from proceeding until a scan capturing the entire area within the marked section border is provided. [0064] Next, scan data from outside of the pad boundary may be removed 216 using techniques such as thresholding and image recognition. This step saves processing time and data storage by removing unnecessary data from the remainder of the data processing steps. The scan data may be used in later steps, such as a step of preparing a wearer mesh model. The wearer mesh model may include the entire area of the wearer's body under the visibly defined border of the marked section and/ or within the visibly defined border of the marked section. By removing scan data outside of the pad boundary, the wearer mesh model may be limited to the area of the wearer's body under the portion of the marked section within the visibly defined border.

[0065] The next step is modeling the gear shell 220. This step is similar to step 120 described above with manufacturing gear based on a body scan, but the use of a marked section 24 or pocket 30 presents additional complexity. In particular, if the garment donned by the wearer has pockets 30 into which the manufactured equipment will be inserted (or if a similar garment to that worn during scanning will be used), the equipment must be modeled and manufactured in a manner to fit within the pocket 30. In some embodiments, the mesh model may be modified such that when manufactured, the equipment will fit within the pocket. Such modification may include, for example, trimming or cropping the mesh model such that the dimensions of the manufactured pad are smaller than the dimensions of the seam. In other embodiments, the model may be smoothed in a manner to reduce the edges of the model (and thus the manufactured equipment) such that when manufactured, the equipment will slide within the interiorof the pocket. In still other embodiments, the pocket and the border may be configured such that the seam of the pocket is along the outside of the marked section or fit area, and the contrasting border defining the fit area is dimensioned within the seam of the pocket. Then when the mesh model is made based on the pad boundary, the pad is smaller than and able to slide into the pocket.

[0066] An additional consideration is that the scan or image is taken not of the wearer's body as described with respect to the process of Figures 1A-1C, but rather of the garment that the wearer is wearing. If the garment is tight-fitting, then the surface topography of the garment will approximate the surface topography of the underlying body part. For this reason it is preferable that the garment worn during the scanning process be tight-fitting. Taking this into account for the processes described with respect to Figures 9A-15, the mesh model of the first surface of the gear shell will be derived not from the scan of the wearer's body but rather the scan of the wearer's garment over the applicable body part or region.

[0067] With the considerations of above taken into account the modeling of the gear shell otherwise proceeds in a manner as described above with respect to the processes of Figures 1A-1C.

[0068] The remaining steps of modeling of the gear liner 230, manufacturing of the shell and liner 240, attachment of the liner to the shell 250, and delivery to the customer 260 may be the same or substantially similar to the corresponding steps described above with respect to other embodiments as further described with respect to Figures 1A-1C. Alternatively, conventional methods of producing a shell and liner for gear may be used together with the gear-selection aspects described herein.

[0069] Once manufactured, if the garment has a pocket forming the marked section, the equipment may be configured to be received by the pocket. For example, the shape of the border of the manufactured equipment may correspond to the shape of the pocket as defined by the visibly defined border. If a garment without a pocket as the marked section was used, the equipment may be inserted into pockets on a separately provided garment.

[0070] A system for implementing the processes described above are also disclosed herein. In at least some respects, the system includes a scanning or imaging device operable to take a depth-sensitive image of user. The scanning device may be a smartphone or tablet with depth-sensing cameras or technology. Such a scanning device may be provided with an application that guides the user to take the necessary images and also received input from the user regarding sizing, shape, orientation on the body, thickness, and other desired attributes of the final product. The image, related product information, and completed design file may be stored on the scanning device or communicated to a server for storage. The software application on the smartphone or mobile device may also perform the automated characterization 110, 210 steps described above. Alternatively, the automated characterization steps may be performed at a remote server. The server, smartphone, tablet, or other processor may then send instructions for the completed design file to the processors for fabrication machines, such as the liner cutter and/ or the additive printing machines.

[0071] The processes and systems disclosed herein have been particularly described for designing and manufacturing a single-pad product (in particular in some embodiments with reference to a shin guard). However, multiple pads provided in a single integrated garment, such as a set of shoulder pads, may also be provided. In such cases, multiple scan images (e.g., of both shoulders, the chest, the upper back, etc.) may be required. Furthermore, in the end user characterization steps the application can receive end user decisions for each of the multiple pads being designed and manufactured.

[0072] It is to be understood that any given elements of the disclosed embodiments of the invention may be embodied in a single structure, a single step, a single substance, or the like. Similarly, a given element of the disclosed embodiment may be embodied in multiple structures, steps, substances, or the like.

[0073] The foregoing description illustrates and describes the processes, machines, manufactures, compositions of matter, and other teachings of the present disclosure. Additionally, the disclosure shows and describes only certain embodiments of the processes, machines, manufactures, compositions of matter, and other teachings disclosed, but, as mentioned above, it is to be understood that the teachings of the present disclosure are capable of use in various other combinations, modifications, and environments and are capable of changes or modifications within the scope of the teachings as expressed herein, commensurate with the skill and/or knowledge of a person having ordinary skill in the relevant art. The embodiments described hereinabove are further intended to explain certain best modes known of practicing the processes, machines, manufactures, compositions of matter, and other teachings of the present disclosure and to enable others skilled in the art to utilize the teachings of the present disclosure in such, or other, embodiments and with the various modifications required by the particular applications or uses. Accordingly, the processes, machines, manufactures, compositions of matter, and other teachings of the present disclosure are not intended to limit the exact embodiments and examples disclosed herein. Any section headings herein are provided only for consistency with the suggestions of 37 C.F.R. § 1.77 or otherwise to provide organizational queues. These headings shall not limit or characterize the invention(s) set forth herein.

Claims

We claim:

1. A method for fabricating equipment to be worn on a wearer's body, comprising: a) selecting a garment comprising a marked section with a visibly defined border; b) donning the garment on the wearer's body; c) obtaining a scan of at least a portion of the garment as worn on the wearer's body at the location where the marked section is disposed over the wearer's body; d) preparing a wearer mesh model derived from the scan at the location where the marked section is disposed over on the wearer's body; e) preparing a model of the equipment, the equipment having a first surface configured to form to the garment at the location where the marked section is disposed over the wearer's body and a second surface offset from the first surface; f) checking the model of the equipment to identify production defects and, if a production defect is present, removing the defect; and g) manufacturing the equipment.

2. The method of claim 1, wherein the garment is configured to form to the wearer's body.

3. The method of claim 1, wherein the garment comprises an elastic material.

4. The method of claim 1, wherein the marked section is a pocket.

5. The method of claim 4, wherein the equipment is configured to be received by the pocket.

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6. The method of claim 5, wherein the shape of the equipment is substantially identical to the shape of the pocket inside of the visibly defined border.

7. The method of claim I, wherein the wearer mesh model includes the entire area of the garment inside of the visibly defined border of the marked section.

The method of claim 1, wherein the garment comprises a pocket having a seam, and wherein the seam is outside of the marked section.

8. The method of claim 1, wherein the wearer mesh model is limited to the area of the garment within the portion of the marked section within the visibly defined border.

9. The method of claim 1, wherein the second surface of the equipment is translationally offset from and substantially identical to the first surface of the equipment.

10. The method of claim 1, further comprising the step of receiving input regarding the equipment, the input comprising at least one of a thickness of the equipment, a color of the equipment, or a composition of the equipment.

11. The method of claim 1, wherein the scan is obtained using LiDAR.

12. The method of claim 1, wherein the scan is obtained using depth-sensing camera technology.

13. The method of claim 1, wherein the production defect consists of at least one of the following: an overlapped first surface and second surface, a sharp point on a surface, an edge on a surface, a hole in a surface, a thickness less than a minimum allowable thickness, and a thickness greater than a maximum allowable thickness. The method of claim 1, wherein the wearer mesh model has a resolution of at least 0.1 mm. The method of claim 1, wherein the step of manufacturing the equipment comprises additively manufacturing the equipment. A method for fabricating equipment having a shell portion and a liner portion to be worn by a wearer, comprising: a) selecting a garment comprising a pocket with a visibly defined border; b) donning the garment on the wearer's body; c) obtaining a scan of at least a portion of the garment at the location where the pocket is disposed over the wearer's body; d) preparing a wearer mesh model derived from the scan at the location where the pocket is disposed over the wearer's body; e) preparing a model of the shell, the shell having a first surface defined by the wearer mesh model and a second surface translationally offset from and identical to the first surface; f) checking the model of the shell to identify production defects and, if a production defect is present, removing the defect; g) preparing a model of a liner by flattening the model of the shell; h) additively manufacturing the shell; i) manufacturing the liner; and j) attaching the liner to the shell. The method of claim 17, further comprising linking the model of the shell and the model of the liner to a serial number.

18. The method of claim 17, further comprising orienting the model of the shell along a principal axis of the model of the shell for additive printing. 19. The method of claim 17, wherein the liner is attached to the shell by adhesively attaching the liner to the shell in a vacuum environment.

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