WO2014182599A1 - Structure composite d'absorption des chocs, son procédé de fabrication et applications associées - Google Patents

Structure composite d'absorption des chocs, son procédé de fabrication et applications associées Download PDF

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Publication number
WO2014182599A1
WO2014182599A1 PCT/US2014/036753 US2014036753W WO2014182599A1 WO 2014182599 A1 WO2014182599 A1 WO 2014182599A1 US 2014036753 W US2014036753 W US 2014036753W WO 2014182599 A1 WO2014182599 A1 WO 2014182599A1
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WO
WIPO (PCT)
Prior art keywords
thermoplastic
layer
impact
management system
energy management
Prior art date
Application number
PCT/US2014/036753
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English (en)
Inventor
Patrick STREETER
Original Assignee
Volatile Padding Technologies
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volatile Padding Technologies filed Critical Volatile Padding Technologies
Publication of WO2014182599A1 publication Critical patent/WO2014182599A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/015—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with shock-absorbing means
    • A41D13/0156—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with shock-absorbing means having projecting patterns
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D20/00—Wristbands or headbands, e.g. for absorbing sweat
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2600/00—Uses of garments specially adapted for specific purposes
    • A41D2600/10—Uses of garments specially adapted for specific purposes for sport activities

Definitions

  • Embodiments of the invention relate to energy absorbing components and to methods of manufacturing energy absorbing components. More specifically, embodiments of the invention relate to flexible energy absorbing apparatus designed and usable to protect an object (e.g., the human body or any of a variety of surfaces) over a readily customizable, wide range of impact energies.
  • an object e.g., the human body or any of a variety of surfaces
  • an energy-absorbing compression cell that utilizes the controlled venting of fluid uses plastics that are blow molded or injection molded into complex molds, and then is combined with other energy absorbing members if it is so desired.
  • a separate layer of molded plastic is used to combine each individual compression cell into one continuous layer.
  • Each compression cell is then constructed with complex geometry to allow a locking fit with the separate layer of molded plastic.
  • Disadvantages of such a design include high manufacturing costs, and limiting the application of such components to protective devices containing a semi-rigid plastic layer.
  • foam padding decreases in performance.
  • fluid-utilizing energy absorbing components have been found to be more durable than foam when subjected to multiple impacts, it has been found that the combination of the two energy-absorbing members results in a more-durable protective structure.
  • the problems associated with currently developed fluid-utilizing energy components, and foam as an energy absorbing material include: (a) limited adaptability; (b) tradeoff between size of energy absorbing structure and amount of material used; (c) decreased durability; and, (d) non-optimal manufacturing techniques for developing a composite structure of energy absorbing materials.
  • An embodiment of the invention is a flexible energy absorbing method, provided for protecting a surface from a range of impacts through the steps of: (a) providing an energy-absorbing protective structure with resistance to initial impact energy, but that yields to impact after the initial phase of impact energy; (b) providing an energy- absorbing protective structure with a second-energy absorbing component with resistance to initial impact that transfers forces from the initial impact more continuously than traditional energy-absorbing materials; (c) providing an energy-absorbing protective structure with resistance to initial impact that is constructed with a combination of the two aforementioned energy absorbing components; and (d) providing an energy-absorbing protective structure manufactured through the process of thermoforming such that two opposing thermoformed sheets are bonded together with an energy- absorbing component that is resistive to initial impact energies layered in between to create a composite, continuous impact absorbing member.
  • an energy-absorbing protective structure comprises one or more energy absorbing compressible cells, layered with impact absorbing foam, to embody a continuous protective structure, either alone or in combination with other energy-absorbing materials or layers.
  • compression cell within the continuous embodiment, is in the form of a thin- walled fluid-filled enclosure with an inner layer defined by a thermoplastic material in combination with an energy-absorbing material, such as foam.
  • Each cell contains at least one fluid-releasing orifice, with an aspect being composed of two fluid releasing orifices.
  • Each cell is constructed to resist initial impact energies before it deliberately yields in such a manner that fluid is forced out of the orifice(s) of the cell in order to manage a more controlled resistance to the applied impact energy.
  • Each cell is constructed in such a manner that after the applied impact is removed, the cell is able to rapidly return to its original shape, resulting in the ability to resist further applied impact energies.
  • the energy-absorbing material that combines with a thermoplastic material to define the inner chamber of each individual compression cell allows for fluid to flow, with resistance, between individual compression cells connected through the overall continuous membrane.
  • the cell has a substantially round, symmetrically disk-shape and is provided with walls tapered at such an angle that they resist collapsing during initial impact, while retaining the ability to collapse after initial impact energies are applied.
  • each individual compression cell within the continuous member collapses fluid is released at a controlled rate through the respective orifice(s).
  • the range of impact-energy resisted by the energy absorbing protective structure can be adjusted by altering various properties of the cell while in the fabrication process.
  • the thickness of the walls, the geometry of the cell, the thickness and properties of the intermediate energy-absorbing layer, the fluid contained within each cell, and the number and location of the orifices of each cell can all be customized to provide protection against individual ranges of forces for varying applications.
  • the number of individual compression cells within the continuous protective member can be customized to provide varying levels of protection for differing applications.
  • the compression cells, and the continuous protective member may be constructed with walls of non-uniform thickness, so that the structure has stiffness that varies with respect to displacement and differing impact energy applications.
  • the energy-absorbing structure can be constructed by molding sheets of plastic resin in molds configured to form shapes of the invented design for incorporation into various types of padded equipment.
  • One method by which the energy absorbing component of the present invention can be formed is through thermoforming.
  • Thermoforming is a process of shaping plastic resin by heating a sheet or film of the plastic to a temperature at which the resin is pliable, at which point the plastic sheet is forced into a one-sided mold to achieve a desired final shape.
  • the energy absorbing component of the present invention may be constructed by (1) heating a first thermoforming sheet to its forming temperature, (2) heating a second thermoforming sheet to its forming temperature, (3) forcing the first and second thermoformed sheets into respective upper and lower mold component halves, (4) placing a layer of high-density foam in between the two molded thermoformed sheets, (5) joining the two thermoformed sheets together by either bonding, gluing, welding, fusing, coupling, or the like.
  • the mold halves can be closed together while the material is still at its forming temperature such that the two halves are fused or welded together at the desired contact points.
  • One advantage of forming the energy absorbing components from two sheets of preferably TPU or TPE plastic is that it allows the component to be constructed with an intermediate layer of foam without having to perform secondary manufacturing operations. This will decrease manufacturing costs while increasing the range of forces at which the energy absorbing components are best suited to protect.
  • a second advantage of forming the energy absorbing components through the process of thermoforming is that it allows the components to be constructed of two different materials. This results in the components having different properties to allow for a greater range of functional properties if compared to the present invention being constructed out of one material.
  • the upper layer of the proposed invention could be constructed out of a plastic resin that is thicker and has a higher durometer, while the lower layer is constructed out of a thinner, lower durometer plastic resin.
  • the upper layer portion of the energy absorbing component would provide greater resistance to forces exerted on the upper portion of the energy absorbing component.
  • the lower portion, constructed from the thinner material of a lower durometer will exhibit greater flexibility and accordingly provide more cushioning in response to forces exhibited upon the lower portion of the energy absorbing components.
  • FIG. 1 is a side view, partially in section, of an energy absorbing apparatus having multiple compression cells separated from the continuous protective structure they are contained within, according to an exemplary embodiment of the invention
  • FIG. 2 is a detailed schematic illustrating a twin sheet thermoforming process for an energy absorbing apparatus according to an illustrative embodiment of the invention
  • FIG. 3 is a side view, partially in section of an energy absorbing apparatus, in which the composite structure of the protective member compromises an external, offset layer of impact absorbing foam on each side of the continuous protective structure, according to an exemplary embodiment of the invention
  • FIG. 4 is a side view, partially in section, of an energy absorbing apparatus, in which the composite protective structure does not contain an external layer of impact-absorbing foam, according to an exemplary aspect of the invention
  • FIG. 5 is a side view, partially in section, of an energy absorbing apparatus, in which each individual compression cell within the continuous structure of the overall protective member is completely encapsulated in molded thermoplastic with an intermediate layer of impact- absorbing foam in between the two halves of the molded plastic resin, according to an exemplary aspect of the invention
  • FIG. 6 is a side view, partially in section, of an energy absorbing apparatus, in which continuous protective member does not contain an intermediate layer of impact-absorbing foam, according to an exemplary aspect of the invention
  • FIG. 7 is a side elevational view of a headband design incorporating the continuous protective structure, in accordance with an illustrative embodiment of the invention.
  • FIG. 8 is a side view, partially in section, of an energy absorbing apparatus, in which the individual halves of the continuous protective member are conjoined about the axis of symmetry, and in which the composite protective structure does not contain an intermediate layer of impact absorbing foam, according to an exemplary aspect of the invention
  • FIG. 9 is an exploded view of FIG. 1 ;
  • FIG. 10 schematically illustrates cell dimensions.
  • an energy absorbing apparatus constitutes a series of continuously connected, fluid-releasing compression cells 10 in combination with one or more layers of impact absorbing foam, designed to protect an object through a composite protective member 20.
  • Each individual compression cell 10 within the continuous protective structure 11 compromises a hollow, compressible, resilient chamber that extends between the upper 12a and lower 12b halves of molded plastic resin side walls 12 and in some embodiments, an intermediate layer of impact absorbing foam 13.
  • each individual compression cell is continuously connected 14 through the protective structure 11 to allow for a flexible structure that offers a greater range of protection than other previously designed flexible padding solutions.
  • Each cell 10 compromises two connected halves of molded plastic resin 12, each containing a top wall 16 and a bowed side wall 12a, 12b, and in some embodiments, an intermediate layer of impact absorbing foam 13.
  • At least one fluid-releasing vent 17 is located on the top wall of each half of molded plastic resin to allow for a controlled release of fluid from each individual compression cell.
  • the continuous protective structure 11 suitable, e.g., for a headband used in soccer or field hockey
  • the top wall 16 has a diameter/thickness of 0.69 in.
  • the side wall 12 has a diameter/thickness of 0.70 in. at the equator, projected at an angle of 95 degrees to the top wall 15.
  • Each top wall 15 has a thickness of 0.0 8in., and contains a centered fluid-releasing vent hole 17 of 0.01 in. in diameter.
  • the composite structure is constructed via a method to mold sheets of plastic resin into the desired upper and lower component halves and then joining the surfaces to complete the desired impact absorbing s gag ture .
  • Material s that are suitable for such manufacturing are thin, flexible sheets of thermoplastic resins 30, which can be heated to a pliable state and molded into the desired shapes.
  • thermoplastic sheet 30 material is 75 Shore A thermoplastic polyurethane sheet.
  • the thickness of the sheet 30 may be adjusted according to design criteria but will generally range between 0.010 in. to 0.100 in. depending on particular material properties.
  • Touching the exterior of the continuous protective structure 11 is an external layer of impact absorbing material 19.
  • the external layer of impact absorbing material 19 serves to protect against a larger range of impact energies than the continuous protective structure 11 can do on its own. At its exterior, the external layer of impact absorbing material 19 lies flush with the top layer 15.
  • the continuous protective structure 11 provides multiple customization options, including selection and alteration of material dimensions and properties, the use of many differing materials, including the selection of thermoplastic durometers and wall thicknesses, the geometry of each individual compression cell 10, and the use of material properties of intermediate 13 and external 19 impact absorbing components. By adjusting these properties in coordination with one another, a customized range of protection against impact energies can be developed than has previously been developed with conventional foams and other energy management systems.
  • the composite protective structure 20 of the present invention allows for the continuous connection of individual, compressible, fluid-releasing cells
  • an intermediate layer of impact absorbing material 13 such as an open cell foam, for example, allows for fluid, held within the individual compression cells 10 to not only be released through the orifice(s) 17 located on the top layer(s) 15 of the cells 10, but to also be distributed to adjacent compression cells, allowing for initial impact energies to be dispersed over a larger area.
  • This intermediate layer of impact absorbing material 13 can be customized to provide differing ranges of resistance to fluid flow between adjacent individual compressible cells 10 and to initial impact energies as needed for differing specific applications.
  • the composite protective structure 20 in the present invention has the potential for exhibiting greater durability than conventional foams and other previously designed energy management systems.
  • the composite protective structure 20 in the present invention has the potential for exhibiting greater durability than conventional foams and other previously designed energy management systems.
  • the composite protective structure 20 can exhibit consistent impact absorbing
  • Thermoforming is a general manufacturing process of forming sheets of thermoplastic resin by heating the sheet to a specific temperature, sufficient to make the sheet pliable, before shaping the material into its desired form.
  • the material is uniformly heated to its forming temperature before being placed in its respective mold.
  • the normal forming temperature of a material is such a temperature where the thermoplastic material becomes pliable yet does not have degraded material properties, and it is not at such a temperature where it can no longer be handled.
  • the material is clamped at its edges and forced into a one-sided mold, typically constructed of aluminum, by applying a vacuum pump to the back side of the mold. Positive air pressure can also be applied to the material surface side opposite of the mold to assist in the firm placement of the material to the respective mold.
  • the pliable material heated to its forming temperature, should be placed on the mold, with the vacuum pump and positive air pressure engaged, as rapidly as possible.
  • the plastic is cooled to a temperature at which it is no longer pliable, referred to as the set temperature. At this temperature, the molded plastic is removed from the mold and excess material, resulting from the clamping of material at the edges of the mold, is trimmed to the desired dimensions.
  • twin sheet thermoforming embodies the same principles as that of thermoforming, with the exception that in twin sheet thermoforming, two sheets of plastic are molded and heated at the same time before they are pressed together and bonded at connection points.
  • the points of contact can be either along the edges of the upper and lower halves of the molded material, or at intermediate indentations of the molded components.
  • Structures constructed through the process of twin sheet thermoforming can be constructed with an intermediate layer of foam, or other desired material, positioned in between the upper and lower halves of the molded thermoplastic material. Once the upper and lower halves of the molded thermoplastic material are pressed together, the plastic resin material sheets form around the layer of intermediate material, sealing it within an external barrier.
  • Suitably advantageous materials for twin sheet thermoforming should exhibit desirable properties of specific heat, so that once heated to its forming temperature, the material can retain that temperature for a sufficient amount of time to remain pliable.
  • a sheet of extruded flexible thermoplastic material 30 is rolled 37 and heated 31 to its forming temperature, and then molded in a corresponding mold 32 configured to form from the material the upper half of the impact absorbing structure.
  • a second sheet of extruded flexible thermoplastic material 30 is rolled 37 and heated 31 to its forming temperature, and then molded in a corresponding mold 32 configured to form the lower portion of the impact absorbing structure from the material.
  • a vacuum pump 34 With the assistance of a vacuum pump 34, the sheets of flexible thermoplastic material 30 are pulled into the exact shape of the respective molds 32. Air pressure, supplied in between the two molded layers of thermoplastic material, further enables the individual sheets of thermoplastic material 30.
  • a separate impact absorbing material such as high density foam 13
  • the composite structure is then further cooled sufficiently, and the vacuum pumps 33 are disengaged to allow for removal from the molds 36. Secondary manufacturing operations such as cutting and drilling in desired, pre-determined locations are then performed, leading to the completion of the desired final composite structure 18.
  • the upper 12a and lower 12b halves of the impact absorbing structure can be constructed with materials of differing properties to create a wider range of impacts with which the structure protects.
  • the separate halves may be constructed with thermoplastic materials of differing durometers.
  • the upper layer 12a of the proposed invention could be constructed out of a plastic resin that is thicker and has a higher durometer, while the lower layer 12b is constructed out of a thinner, lower durometer plastic resin.
  • the upper layer 12a of the energy absorbing component would provide greater resistance to forces exerted on the upper portion of the energy absorbing component.
  • the lower portion 12b, constructed from the thinner material of a lower durometer will exhibit greater flexibility and accordingly provide more cushioning in response to forces exhibited upon the lower portion of the energy absorbing components.
  • the upper 12a and lower 12b halves of the composite structure could be constructed with materials of similar durometer, but of varying thicknesses.
  • Such customizable properties are highly advantageous when developing an impact absorbing structure designed to protect over a wide-range of impact energies without adding additional manufacturing costs.
  • twin sheet thermoforming is a particularly advantageous method of constructing the impact absorbing component of the present invention.
  • the impact absorbing structure could be constructed through thermoforming the upper 12a and lower 12b halves of the composite structure separately, and then joining the two halves together through any of a variety of adhering processes.
  • adhering processes could include, but are not limited to, the application of epoxy or other adhesive materials or chemicals, or through the process of ultrasonic or RF welding, or other known techniques.
  • the impact absorbing structure could be constructed through the injection molding of each individual upper 12a and lower 12b half of the structure separately before bonding the two layers in a separate manufacturing operation.
  • injection molding a mold consisting of an injection mold (A plate) and an ejector mold (B plate) combine to create a fully encapsulated mold which molten plastic resin is then forced into, through a sprue, to form the desired final shape. After the resin is injected into the mold cavity, the component is cooled and then forced out of the mold through the use of ejector pins.
  • FIG. 3 shows an alternative embodiment of the present invention in which the external layer of impact absorbing material 40, such as foam, is offset from the outer surfaces of the continuous protective structure 11.
  • the construction and design of the continuous protective structure 11 is such that it is similar to the illustrative embodiment of FIG. 1, or as those alternative protective structure designs embodying FIG. 5, 6 labeled 50 and 60 respectively.
  • the offset layer of external impact absorbing material 40 may provide added protection from a wider range of impacts, as the offset provides a fluid-filled gap 41 between the external impact absorbing material 40 and the continuous protective structure 11.
  • This fluid-filled gap 41 allows the external impact absorbing material 40 to expand after initial impact energies occur, allowing for impact energies to be dissipated over a greater length of time, thus enhancing the protective capabilities of the composite structure 21.
  • a venting hole 42 is designed in to each layer of external impact absorbing material to allow for an unrestricted flow of fluid from the venting orifice 17 of the individual compression cells 10.
  • the durability of the continuous protective structure 11 is further enhanced as it is protected from direct impacts by the layer of external impact absorbing material 40.
  • the composite protective structure 20 described in the illustrative embodiment of FIG. 1 in the composite structure of FIG. 3, 21, may be customized as per individual impact energy protection needs. Material properties, such as durometer, density and thickness, may be adjusted along with the venting orifice 17 size and other dimensions of the composite structure 21, similar to how such adjustments may be made in the composite protective structure 20 of FIG. 1.
  • FIG. 4 shows another embodiment of the invention in which there is no external impact absorbing member.
  • the construction and design of this embodiment are similar to that of the continuous protective structure 10 of FIG. 1, but may also be constructed and designed in a manner similar to the protective structure 50 of FIG. 5 or to that of the protective structure 60 of FIG. 6.
  • FIG. 5 illustrates still another embodiment of the present invention in which the continuous protective structure 50 is such that the individual compression cells 52 within the continuous structure 51 are fully encapsulated by the bonding of an upper 53a and lower 53b half of molded thermoplastic resin. Similar to the continuous protective structure 11 illustrated in FIG. 1, this alternative embodiment of the present invention is such that it consists of upper 53a and lower 53b halves of molded thermoplastic encapsulating an intermediate layer of impact absorbing material 13, such as high density foam.
  • the fluid held within the individual cells 52 can only be released through the venting orifice(s) 17, allowing for greater control over the releasing of fluid from within the individual compression cells 52 after initial impact energies occur.
  • the external impact absorbing material 19 in the composite protective structure 50 of FIG. 5 is such that it is touching the outer portion of the continuous protective structure and is flush with the exterior of the top layer 54 of both the upper 53a and lower 53b halves of the individual compression cells 52 within the continuous protective structure.
  • This alternative composite protective structure 50 may also be constructed with an offset external impact absorbing material layer 40, as illustrated in FIG. 3, or without an external impact absorbing material layer, as illustrated in FIG. 4.
  • FIG. 6 illustrates a fourth alternative of the present invention, in which there is no intermediate layer of impact absorbing material in between the upper 61a and lower 61b halves of the molded plastic resin material.
  • the composite protective structure 60 in FIG. 6 is illustrated in such a manner that it does not contain an external layer of impact absorbing material.
  • Such design is one possible embodiment of the design, as it may also be constructed with a flush layer of impact absorbing material 19, as illustrated in FIGS. 1, 5, or may be constructed with an offset layer of impact absorbing material 40 as seen in FIG. 3.
  • the composite protective structure 20 of FIG. 1 is shown incorporated into a protective structure, i.e., an athletic headband having an outer layer, or fabric exterior, shown in phantom 70.
  • a protective structure i.e., an athletic headband having an outer layer, or fabric exterior
  • the protective structure 20 is encased in a sewn in fabric exterior layer 70.
  • a thin sheet(s) of vinyl plastic such as heat transfer vinyl, may be applied to limit the movement of the designed headband 70 during impacts occurring at indirect angles.
  • the athletic headband 70 comprises a front padding member 71a and a rear padding member 71b that serve to protect areas of major concern for impacts in non-helmeted sports. These areas include, but are not limited to, the temporal lobe, frontal lobe and occipital lobe of the brain.
  • FIG. 8 illustrates a fifth alternative of the present invention in which the continuous protective structure 50 is such that the individual compres sion cells 52 within the continuous structure are fully encapsulated by the bonding of an upper 53a and lower 53b half of molded thermoplastic resin. Similar to the continuous protective structure 11 illustrated in FIG. 1, this alternative embodiment of the present invention is such that it comprises upper 53a and lower 53b halves of molded thermoplastic, fully encapsulating a fluid. By fully encapsulating the individual compression cells 52 with a molded
  • thermoplastic material the fluid held within the individual cells 52 can only be released through the venting orifice(s) 17, allowing for greater control over the releasing of fluid from within the individual compression cells 52 after initial impact energies occur.
  • the composite protective structure embodied in FIG. 8 has venting orifices 17 that allow the contained fluid to be vented into the intermediate layer in lieu of being vented to the atmosphere.
  • the individual continuous protective structure 50 will be designed in such a manner that the combination of multiple individual compression cells 52 will compromise a larger, fully encased, non- venting, fluid-containing structure. It will also be appreciated that the composite protective structures 20, 21, 10, 50, and 60 may be adapted in a wide variety of other impact absorbing applications.
  • FIG. 9 an exploded side view of multiple compression cells 10 of Fig. 1 is illustrated in accordance with an embodiment of the present invention.
  • the multiple compression cells of Fig. 9 can include, but are not limited to external impact absorbing layers 19, a first thermoformed layer 12a, a second thermoformed layer 12b, and an internal absorbing layer 13 disposed therebetween.
  • Top wall 16, top layer 15, and fluid releasing vent 17 are also shown.
  • Fig. 10 an exploded perspective view of a single compression cell 11 of Fig. 1 illustrating the dimensions of the cell is shown in accordance with an embodiment of the present invention.
  • the single compression cell 11 of Fig. 10 can include, but is not limited to a first thermoformed layer 12a, a second thermoformed layer 12b, and an internal absorbing layer 13 disposed therebetween.
  • Top wall 16 and fluid releasing vent 17 are also shown.
  • the composite protective structures 20, 21, 10, 50, or 60 possess a unique combination of energy management components with elements and properties that can be adjusted to act in combination to manage impact energies in a novel manner.
  • the composite protective structures 20, 21, 10, 50, or 60 provide the following benefits:

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Laminated Bodies (AREA)

Abstract

Cette invention concerne une structure de protection absorbant les chocs, comprenant une pluralité de cellules compressibles reliées de manière continue associées à d'autres couches absorbant l'énergie. Chaque cellule comprend une chambre délimitée par une couche absorbant l'énergie, par exemple en matériau alvéolaire, interposée entre une paire de couches en plastique. Les cellules compressibles individuelles comprennent des mécanismes qui résistent initialement aux forces d'impact avant de céder tout en assurant la gestion du reste des forces d'impact par la dispersion équilibrée desdites forces et l'évacuation d'un fluide à travers un/des orifice(s). Les propriétés de la cellule compressible sont ajustables de façon à optimiser les capacités d'absorption des chocs de la structure face à une diversité d'énergies de choc. Selon un mode de réalisation ladite structure d'absorption des chocs est construite par moulage des parties supérieure et inférieure de la structure d'absorption des chocs autour d'une couche intermédiaire de matériau absorbant l'énergie. Les moitiés supérieure et inférieure sont ensuite reliées pour former la structure d'absorption des chocs.
PCT/US2014/036753 2013-05-08 2014-05-05 Structure composite d'absorption des chocs, son procédé de fabrication et applications associées WO2014182599A1 (fr)

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US201361820758P 2013-05-08 2013-05-08
US61/820,758 2013-05-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3095584A1 (fr) * 2015-05-22 2016-11-23 Sekisui Alveo AG Procédé pour manufacturer un conduit d'air en mousse à feuille jumelle avec couche intermédiaire absorbant les sons
EP3549466A1 (fr) * 2018-04-06 2019-10-09 Adidas AG Élément de ventilation
US20200282655A1 (en) * 2019-03-06 2020-09-10 Rheon Labs Limited Anatomical protective items

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577305A (en) * 1968-08-22 1971-05-04 Theodore G Hines Thermal and air shock insulating structure
DE3530397C2 (fr) * 1985-08-24 1987-12-23 Johann 8000 Muenchen De Andrae
WO1993002577A1 (fr) * 1991-07-31 1993-02-18 Hpi Health Protection, Inc. Rembourrage multicouche a poches ou chambres remplies de fluide
US5243722A (en) * 1992-04-06 1993-09-14 Ignaty Gusakov Fluid cushion
US6295654B1 (en) * 1999-03-23 2001-10-02 Daniel P. Farrell Protective sports garment
US20130133138A1 (en) * 2011-11-11 2013-05-30 Skydex Technologies, Inc. Cellular Cushion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577305A (en) * 1968-08-22 1971-05-04 Theodore G Hines Thermal and air shock insulating structure
DE3530397C2 (fr) * 1985-08-24 1987-12-23 Johann 8000 Muenchen De Andrae
WO1993002577A1 (fr) * 1991-07-31 1993-02-18 Hpi Health Protection, Inc. Rembourrage multicouche a poches ou chambres remplies de fluide
US5243722A (en) * 1992-04-06 1993-09-14 Ignaty Gusakov Fluid cushion
US6295654B1 (en) * 1999-03-23 2001-10-02 Daniel P. Farrell Protective sports garment
US20130133138A1 (en) * 2011-11-11 2013-05-30 Skydex Technologies, Inc. Cellular Cushion

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3095584A1 (fr) * 2015-05-22 2016-11-23 Sekisui Alveo AG Procédé pour manufacturer un conduit d'air en mousse à feuille jumelle avec couche intermédiaire absorbant les sons
EP3549466A1 (fr) * 2018-04-06 2019-10-09 Adidas AG Élément de ventilation
CN110338492A (zh) * 2018-04-06 2019-10-18 阿迪达斯股份公司 透气元件
US11350684B2 (en) 2018-04-06 2022-06-07 Adidas Ag Ventilation element
US20200282655A1 (en) * 2019-03-06 2020-09-10 Rheon Labs Limited Anatomical protective items
US11890813B2 (en) * 2019-03-06 2024-02-06 Rheon Labs Limited Anatomical protective items

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