EP4536028A1 - Vessie pour coussins d'amortissement, systèmes et procédés associés - Google Patents

Vessie pour coussins d'amortissement, systèmes et procédés associés

Info

Publication number
EP4536028A1
EP4536028A1 EP23818692.8A EP23818692A EP4536028A1 EP 4536028 A1 EP4536028 A1 EP 4536028A1 EP 23818692 A EP23818692 A EP 23818692A EP 4536028 A1 EP4536028 A1 EP 4536028A1
Authority
EP
European Patent Office
Prior art keywords
cushion pad
internal structure
bladder
cushion
helmet
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP23818692.8A
Other languages
German (de)
English (en)
Inventor
Gabriel Boutin
Martin Laberge
David Benoit
Hugues Rivest
Franck LE NAVEAUX
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kollide Inc
Original Assignee
Kollide Inc
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 Kollide Inc filed Critical Kollide Inc
Publication of EP4536028A1 publication Critical patent/EP4536028A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/121—Cushioning devices with at least one layer or pad containing a fluid

Definitions

  • the technical field relates generally to impact absorbing structures, and more specifically to cushion pads in athletic gear.
  • Contact sports and more specifically single-contact sports and multi-contact sports, generally involve collisions and, in some cases, repeated collisions.
  • Nonlimitative examples of multi-contact sports include American football and hockey. Repeated collisions, especially proximate the head, the neck and/or the shoulder regions can result in serious injuries.
  • impact absorbing structures for use in athletic gear, such as helmets have evolved greatly over the years in an attempt to provide optimum protection to the user, there is still a general need for improvements.
  • a cushion pad for providing protection to equipment.
  • the cushion pad includes an internal structure, a bladder, and a valve.
  • the internal structure has shock-absorbing properties.
  • the bladder encloses the internal structure to define an internal volume of the internal structure.
  • the valve passes through the bladder and is in fluid communication with the internal structure.
  • the valve is configured to allow a passage of an airflow into or out of the internal structure, such that an internal pressure within the internal volume of the internal structure varies when an impact force is applied to the cushion pad.
  • the valve is configured to control airflow out and resulting pressure inside of the internal structure proportional to the impact speed. [005] In some embodiments, the valve is configured to control airflow into the internal structure resulting in a delayed bladder shape recovery with limited impact spring-back.
  • the cushion pad further includes a vent in fluid communication with the internal structure.
  • the cushion pad further includes support posts positioned in a bottom portion of the cushion pad.
  • the bladder is mechanically independent from the internal structure.
  • a helmet including an outer shell, a support structure and a plurality of cushion pads.
  • the outer shell defines a cavity for receiving a head of a person.
  • the support structure is coupled to the outer shell and positioned within the cavity.
  • the support structure includes a web of support material positioned in a spaced-apart relation relative to the outer shell and defines a plurality of openings.
  • the plurality of cushion pads is similar to the embodiments herein described and is provided within respective openings of the web of support material.
  • the plurality of cushion pads forms a liner of the helmet.
  • the support structure is a head-shaped sling.
  • the support structure is a planar sling.
  • the support structure is a head-shaped sling.
  • the support structure is a planar sling.
  • a method for manufacturing a cushion pad for providing protection to equipment includes additively forming an internal structure and a bladder of the cushion pad, wherein said additively forming the internal structure and the bladder includes alternating between the internal structure and the bladder.
  • the bladder pad should be connected to the internal structure in way that will not interfere with its ability to compress and deform.
  • the bladder is mechanically independent from the internal structure.
  • Figures 15A-C illustrate the cooperation between a sling, an outer shell and a cushion pad, according to one embodiment.
  • the internal structure defines a predetermined or a substantially organized lattice, and so may be referred to as an internal lattice structure.
  • the internal structure may be embodied by structures of different shape(s), size and/or configuration, such as, for example and without being limitative, cubic structures, honeycomb structures, structures made from minimal surfaces, gyroid structures, mesh structures, and many others, including combinations thereof.
  • the internal structure may include a periodic pattern, a semiperiodic pattern, an aperiodic pattern, and any combinations thereof.
  • the internal structure includes a combination of “lattice types”, each lattice type having a corresponding configuration or geometry.
  • the cushion pad 10 includes an internal structure 30 having shock-absorbing properties and a bladder 14 enclosing the internal structure 30 to define an internal volume of the internal structure 30.
  • the cushion pad 10 can be integrated as part of various devices and/or systems to provide protection, and more specifically mechanical protection (e.g., shock absorbance) to the device, the system and/or the person(s) using or operating the device or system.
  • the cushion pad 10 is integrated into a helmet liner to provide support between a helmet shell and an interior surface of the helmet facing a head of a user.
  • the internal structure 30 may have any suitable overall geometry and/or size adapted to provide protection to a user when the cushion pad is implemented in a helmet or the like.
  • the internal structure 30 includes a lattice including a plurality of nodes 32 (or “points”), connected one to another by strut members 34 to define a plurality of cells 36.
  • the cells 36 may have a substantially cubic shape.
  • the cells 36 may have any other shapes, and each cell 36 may be similar one from each other, or may alternative be different one from each other.
  • the internal structure 30 of the cushion pad may be similar to at least one of the embodiments described in US 63/203, 134, the content of which is herein incorporated by reference in its entirety.
  • the bladder 14 is adapted, positioned and sized to surround and enclose the internal structure 30.
  • the bladder 14 may have any suitable overall geometry that allows surrounding and enclosing the internal structure 30.
  • the bladder 14 is defined by a plurality of surfaces, collectively forming a continuous outer layer. More specifically, the bladder 14 according to this embodiment includes a top horizontal surface, an angled top surface 16, two opposing angled side surfaces 20, a side surface 18 connecting the angled top surface 16 to a topmost one of the two opposing angled side surfaces, and a bottommost one of the two opposing angled side surfaces 20 connecting to a bottom wall 24 of the cushion pad 10.
  • the bottom wall 24 may be connected by a plurality of support posts 26 to the bottom surface 28 of the cushion pad 10.
  • the general shape of the cushion pad 10 may be different and may be embodied, for example, and without being limitative, by a rectangle or any other multi-sided polygon, as it will be explained in greater detail below.
  • the internal structure 30 of the cushion pad 10 provides resiliency to the cushion pad 10, so that the cushion pad 10 can absorb at least a portion of the energy associated with the impact force exerted on or applied to the cushion pad 10, or the device or system to which the cushion pad 10 is mounted.
  • the cushion pad 10 may be clipped to the corresponding support structure through the wedge 40. In some embodiments, the cushion pad 10 may be provided without the wedge 40.
  • the internal structure 30 has mechanical properties, such as shockabsorbing properties and stiffness, which are associated with how the cushion pad will react or respond to an impact (i.e., absorb and/or dissipate the energy associated with the impact). The stiffness of the cushion pad 10 may be adjusted depending on the anticipated or expected parameters or properties of the impact, which may for example include impact force, direction of the impact, and/or frequency of the impact.
  • each cell 36 is substantially aligned one with each other along two axes, i.e., subsequent or neighbouring cells 36 are aligned along the vertical axis V and the horizontal axis H.
  • at least some adjacent layers, rows or columns of cells 36 may be offset relative to each other or may be at an angle relative to the vertical axis V and/or the horizontal axis H.
  • the cells 36 may be angularly offset relative to one another, so that, for example, one row of cells 36 is aligned along the horizontal axis H while an adjacent row of cells 36 is at an angle to the horizontal axis H.
  • all the cells 36 may be disposed at an angle with respect to the horizontal axis H and/or the vertical axis V.
  • the cushion pad 80 has an internal structure similar to the internal structure of cushion pad 10.
  • the cushion pad 80 is adapted for resiliently absorbing the energy caused or associated with the impact.
  • the cushion pad 80 has a top surface 82, sides 84, and a bottom surface, collectively defining a bladder enclosing the internal structure of the cushion pad.
  • the sides 84 extend downwardly from the top surface 82 and towards the bottom surface.
  • the outwardly extending faces 86 connect to inwardly extending faces 88 which, similar to the cushion pad 10, terminate in a wedge 90 having a topmost and bottommost surface.
  • a vertical surface 92 connects a bottommost surface of the wedge 90 to the bottom surface of the cushion pad 80, the various surfaces described herein together making each of the respective sides 84 of the cushion pad 80.
  • the cushion pad 80 may have any number of sides, such as four, five or another suitable number.
  • the cushion pad 80 may have any other shape and may comprise curved sides 84 in addition to or in place of straight surfaces. As illustrated, the cushion pad 80 is sealed by the bladder.
  • the cushion pad 80 includes an opening 94 for expelling or drawing in air in the internal structure of the cushion pad 80.
  • the opening 94 is in fluid communication with an exterior of the cushion pad 80 (the “environment”) and the internal structure, so that a fluid (e.g., air) may flow between cells of the internal structure and the exterior of the cushion pad 80.
  • a fluid e.g., air
  • stiffness of the cushion pad 80 can be controlled with a combination of the internal structure (and mechanical properties thereof) and the air within the lattice structure. For example, if there is a low impact speed or velocity on the cushion pad 80 causing little deformation, the valve 98 may permit fluid to exit the cushion pad 80 smoothly and with little or no resistance. If there is a high impact speed on the cushion pad causing significant deformation, the valve 98 may prevent fluid from exiting the cushion pad or to provide substantial resistance thereto. In such an embodiment, the valve 98 may permit the cushion pad to provide additional cushioning or protection during impact at high speed.
  • the opening 94 comprises the valve 98, it is envisaged that there may instead be multiple openings. Some of the multiple openings may comprise corresponding valves, while others may simply be vents which do not control the flow of air. In some embodiments, all of the multiple openings can comprise valves. In some embodiments, all of the multiple openings may be vents.
  • the cushion pad may comprise a plurality of valves to allow a control of the air inlet and outlet by different or independent valves.
  • FIG. 3a and 3b there is shown a diagram of the mechanical behavior of the cushion pad 80 with the opening 94.
  • the cushion pad 80 deforms under impact, as shown in Figure 3a, resulting in an increase in air pressure which exits through the opening. Once the impact is removed, the cushion pad 80 resiliently returns to its original form, drawing air from the exterior.
  • the opening 94 comprises a valve to control airflow in and out of the cushion pad 80. Controlling airflow out of the cushion pad 80 has the benefits previously described, such as providing additional cushioning with a variable stiffness depending on impact speed or velocity. In one embodiment, airflow into the cushion pad 80 may also be controlled.
  • Control of the rate at which fluid flows into the cushion pad allows for control of the rate at which the cushion pad 80 returns to its original form.
  • fluid may be restricted from entering the cushion pad 80, slowing the rate at which the cushion pad 80 regains its original form.
  • This delayed form recovery reduces spring-back of the cushion pad 80 post impact, reducing its restitution coefficient.
  • the restitution coefficient e is defined as the ratio of the velocity of an object after an impact to its velocity prior to the impact in the normal direction:
  • cushion pads 100, 150 having at least one aperture for providing fluid communication between top and bottom surfaces thereof.
  • the cushion pad 100 comprises three apertures 102, 102a, of which aperture 102a is shown in cross-section, though it is identical to the other two apertures 102.
  • each aperture 102 and 102a may have a different profile, including dimensions and geometrical properties.
  • the apertures 102, 102a extend from a top surface 104 of the cushion pad 100 to a bottom surface 106.
  • the cushion pad 100 is similar to the cushion pad 10 in that it also comprises a lattice structure (not shown) for resi I iently absorbing impact applied to the cushion pad 100.
  • the apertures 102, 102a allow fluid communication between the top surface 104 and the bottom surface 106. This may be particularly beneficial when the cushion pad 100 is placed in a device, such as a helmet, where breathability is a desired attribute, or when a circulation of an airflow within the helmet can be required.
  • the apertures 102, 102a may permit sweat to evaporate or air to circulate therethrough and, for example, exit through a corresponding slot in the helmet into the ambient environment, which may help managing heat emanating from the user.
  • the cushion pad 150 comprises a lattice structure 152 and an aperture 154.
  • the aperture 154 is similar to apertures 102, 102a, and provides fluid communication between a top surface 156 of the cushion pad 150 to a bottom surface 158.
  • the aperture 154 includes a chamfered top portion 160 and a chamfered bottom portion 162.
  • the bottom portion 162 has a smaller chamfer compared to the top portion 160.
  • the bottom portion 162 may have a larger chamfer than the top portion 160, or they may be the same size.
  • each aperture 160 and bottom portion 162 increase the area from each of the top surface 156 or bottom surface 158 that is in fluid communication with the other one of the top surface 156 or bottom surface 158 while maintaining the diameter of the aperture.
  • each aperture may be in fluid communication with a greater surface area on each, or at least one of, the top surface 156 and the bottom surface 158 to improve breathability. It is understood that the apertures illustrated in Figures 4a and 4b could also be added to the previous cushion pads 10, 80.
  • the internal structure of the cushion pad 10, 80, 100, 150 may be embodied by a hexa-octo lattice structure.
  • the cushion pads 10, 80, 100, 150 are part of an array of cushion pads forming a liner 202 for a helmet 200.
  • the helmet 200 corresponds to a football helmet, although it should be noted that other helmets and/or other types of equipment can include the liner 202 formed of a plurality of cushion pads 10, 80, 100, 150.
  • the helmet 200 includes an outer shell 204 having an outer surface 206 and an inner surface 208, where the inner surface 208 defines a cavity 210 of the helmet 200 for receiving the head of a user.
  • the outer shell 204 also defines a front opening 212 enabling the person to see through, with the helmet 200 being provided with a faceguard 214 connected to the outer shell 204 for at least partially protecting the wearer’s face (e.g., nose, mouth, eyes, etc.).
  • the outer shell 204 further includes a bottom opening 216 enabling a person’s head to engage the cavity 210 from below.
  • the helmet 200 can be provided with a visor (e.g., instead of, or in addition to the facemask) coupled to the outer shell 204 and being pivotable between open and closed positions for respectively opening and closing the front opening 212.
  • the cushion pads 10, 80, 100, 150 may be provided along the inner surface 208 of the outer shell 204 such that the cushion pads are positioned between the user’s head and the outer shell 204 when wearing the helmet 200. It is appreciated that the cushion pads can have respective shapes, sizes, configurations or a combination thereof, based on their position along the inner surface 208, among others. In the embodiment illustrated in Figure 8, the cushion pads 10, 80, 100, 150 can be installed within the cavity 210 along an inner layer 218 and an outer layer 220.
  • the inner layer 218 and the outer layer 220 each have their respective properties, which may be, for example, and without being limitative, the lattice structure (e.g., honeycomb or cubic), presence or lack of a valve, use of a material to provide a desired stiffness, and many other.
  • the combination of the inner layer 218 and outer layer 220 may therefore confer improved shock absorption and/or comfort.
  • the inner layer 218 and outer layer 220 may as in the illustrated embodiment, be generally shaped to conform to the head of the user.
  • the helmet 200 can include a placeholder 222 adapted to support the cushion pads 10, 80, 100, 150 within the cavity 210 along the inner surface 208 of the outer shell 204.
  • the placeholder 222 can be shaped and adapted to support each cushion pad individually, i.e. , independently from the other cushion pads.
  • the cushion pads 10, 80, 100, 150 can be removably installed on the placeholder 222, thereby enabling the removal of one or more cushion pads for maintenance, replacement, or repositioning, among others.
  • the placeholder 222 can be removably coupled to the outer shell 204 and is positioned so as to be spaced from a head of the person wearing the helmet 200 and spaced from the inner surface 208.
  • the placeholder 222 can include a sling 224 connectable to the outer shell 204 and being shaped and sized to support the cushion pads 10, 80, 100, 150. More specifically, the sling 224 can be made of a web of material 226 defining a plurality of openings 228 for receiving the cushion pads. In this embodiment, the sling 224 includes a generally continuous edge 230, and each one of the openings 228 is complementarily shaped relative to one or more of the cushion pads 10, 80, 100, 150 such that each cushion pad fits snugly within the corresponding opening 228. The sling 224 can conform to the shape of the outer shell 204, where the continuous edge 230 is positioned along edges of the front opening 212 and bottom opening 216.
  • the sling 224 can include any suitable number of openings 228, such as two, four, ten, twenty or fifty openings, which can correspond to the number of cushion pads 10, 80, 100, 150 installed within the helmet 200.
  • the sling 224 includes an axis of symmetry S where the openings 228 on a right side of the sling 224 are mirrored on a left side thereof.
  • other configurations are possible, such as having only a portion of the sling being mirrored on the right and left sides, or such as having no symmetry between the right and left sides, for example.
  • the continuous edge 230 may be engineered to alter the general profile of the same.
  • the continuous edge 230 may include variations in thickness, shape and/or topology, and is generally designed to enhance or generally improve the overall properties of the sling 224. It is understood that the generally continuous edge 230 may have a different material from the sling 224.
  • Figures 16 and 17 show an embodiment of a sling 324 having a substantially planar structure, i.e., the sling 324 is substantially planar at rest (i.e., when no external forces are applied to the sling 324).
  • the sling 324 is configured to hold a plurality of cushion pads 326 and includes a plurality of anchor points 328 adapted, sized and positioned to connect portions or components of the sling 324 together.
  • the sling 324 includes regions 330 wherein the connections overlap, at the interface between two contiguous portions or components of the sling 324.
  • cushion-engaging members and the central aperture of the cushion pad 10, 80, 100, 150 are shown with specific dimensions and shapes, it should be noted that their respective profile may vary, as long as the profile of the cushion-engaging members have a shape or profile and characteristics being at least partially complementary with a shape or profile and characteristic of the central aperture of the cushion pad 10, 80, 100, 150.
  • the cushion pads 10, 80, 100, 150 may be fabricated using additive manufacturing methods.
  • additive manufacturing refers to a manufacturing process where hardware is operated to deposit material, layer upon layer, in predetermined and/or desired geometric shapes. Additive manufacturing, or 3D printing, provides the added benefit of producing little waste and generally being more precise than traditional manufacturing methods, such as machining or casting.
  • every layer of material may be deposited in alternating orientations, such as normal to the adjacent layers.
  • Fig. 12a every layer of material may be deposited in alternating orientations, such as normal to the adjacent layers.
  • the bladder 14 is mechanically independent from the internal structure 30.
  • each layer of the cushion pads 10, 80, 100, 150 may be fabricated in a continuous process and without interruption of deposition of the material.
  • the manufacturing process allows alternately depositing layers constituting the internal structure and the bladder without interrupting the material flowing outwardly from the nozzle.
  • an embodiment is an example or implementation of the perforation blade.
  • the various appearances of “one embodiment,” “an embodiment” or “some embodiments” do not necessarily all refer to the same embodiments.
  • various features may be described in the context of a single embodiment, the features may also be provided separately or in any suitable combination.
  • the helmet and related components may be described herein in the context of separate embodiments for clarity, it may also be implemented in a single embodiment.
  • Reference in the specification to “some embodiments”, “an embodiment”, “one embodiment”, or “other embodiments”, means that a particular feature, structure, or characteristic described in connection with the embodiments is included in at least some embodiments, but not necessarily in all embodiments.
  • the optional configurations as illustrated in the accompanying drawings comprises various components and although the optional configurations of the helmet and related components as shown may consist of certain geometrical configurations as explained and illustrated herein, not all of these components and geometries are essential and thus should not be taken in their restrictive sense, i.e. should not be taken as to limit the scope of the present disclosure. It is to be understood that other suitable components and cooperations thereinbetween, as well as other suitable geometrical configurations may be used for the implementation and use of the robot cell, and corresponding parts, as briefly explained and as can be easily inferred herefrom, without departing from the scope of the disclosure and the appended claims.

Landscapes

  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

La présente invention concerne un coussin d'amortissement destiné à fournir une protection à un équipement. Le coussin d'amortissement comprend une structure interne, une vessie et une valve. La structure interne présente des propriétés d'absorption des chocs. La vessie entoure la structure interne pour définir un volume interne de la structure interne. La valve passe à travers la vessie et est en communication fluidique avec la structure interne. La valve est configurée pour permettre un passage d'un flux d'air dans ou hors de la structure interne, de telle sorte qu'une pression interne à l'intérieur du volume interne de la structure interne varie lorsqu'une force d'impact est appliquée au coussin d'amortissement. L'invention concerne également un procédé de fabrication d'un coussin d'amortissement. Le procédé comprend la formation additive d'une structure interne et d'une vessie du coussin d'amortissement, ladite formation additive de la structure interne et de la vessie comprenant l'alternance entre la structure interne et la vessie.
EP23818692.8A 2022-06-09 2023-06-09 Vessie pour coussins d'amortissement, systèmes et procédés associés Pending EP4536028A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263366108P 2022-06-09 2022-06-09
PCT/CA2023/050795 WO2023235984A1 (fr) 2022-06-09 2023-06-09 Vessie pour coussins d'amortissement, systèmes et procédés associés

Publications (1)

Publication Number Publication Date
EP4536028A1 true EP4536028A1 (fr) 2025-04-16

Family

ID=89117274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23818692.8A Pending EP4536028A1 (fr) 2022-06-09 2023-06-09 Vessie pour coussins d'amortissement, systèmes et procédés associés

Country Status (3)

Country Link
EP (1) EP4536028A1 (fr)
CA (1) CA3258698A1 (fr)
WO (1) WO2023235984A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1230702A (fr) * 1984-01-20 1987-12-29 Elwyn R. Gooding Doublure gonflable, a compartiments multiples, pour casques et autres vetements de protection
WO2012094733A1 (fr) * 2011-01-10 2012-07-19 2156389 Ontario Inc. Sac gonflable d'atténuation d'impact à soupape de commande de libération de fluide pour une garniture intérieure de casque
CA3040596A1 (fr) * 2016-10-17 2018-04-26 9376-4058 Quebec Inc. Casque, procede de conception et de fabrication d'un casque et casque fabrique selon ce procede
US10791785B2 (en) * 2017-09-01 2020-10-06 Carl Kuntz Inflatable neck support for contact sports helmets

Also Published As

Publication number Publication date
WO2023235984A1 (fr) 2023-12-14
CA3258698A1 (fr) 2023-12-14

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