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EP3785558B1 - Casque de bicyclette pourvu d'élément d'amortissement - Google Patents

Casque de bicyclette pourvu d'élément d'amortissement Download PDF

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Publication number
EP3785558B1
EP3785558B1 EP19194500.5A EP19194500A EP3785558B1 EP 3785558 B1 EP3785558 B1 EP 3785558B1 EP 19194500 A EP19194500 A EP 19194500A EP 3785558 B1 EP3785558 B1 EP 3785558B1
Authority
EP
European Patent Office
Prior art keywords
chamber
helmet
helmet body
damping element
plane
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.)
Active
Application number
EP19194500.5A
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German (de)
English (en)
Other versions
EP3785558A1 (fr
Inventor
Tobias Hild
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.)
SQlab GmbH
Original Assignee
SQlab GmbH
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 SQlab GmbH filed Critical SQlab GmbH
Priority to EP19194500.5A priority Critical patent/EP3785558B1/fr
Publication of EP3785558A1 publication Critical patent/EP3785558A1/fr
Application granted granted Critical
Publication of EP3785558B1 publication Critical patent/EP3785558B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/066—Impact-absorbing shells, e.g. of crash helmets specially adapted for cycling helmets, e.g. for soft shelled helmets
    • 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
    • A42B3/124—Cushioning devices with at least one corrugated or ribbed layer

Definitions

  • the present invention relates to an improved bicycle helmet with at least one damping element which is designed to absorb forces acting on the bicycle helmet in the event of an accident and to protect the cyclist's head, and a damping element which is arranged in a bicycle helmet.
  • conventional bicycle helmets In order to reduce the translational accelerations acting on the cyclist's head in the event of an accident, conventional bicycle helmets often have a plurality of areas with the greatest possible deformation path in order to provide a crumple zone.
  • the function of a bicycle helmet is to absorb and dissipate the forces acting on the head as a result of an impact in order to reduce the risk of injury to the cyclist.
  • bicycle helmets At the same time, it is desirable for bicycle helmets to be as light as possible in order to keep the increased load on the cyclist's spinal column due to greater inertia low.
  • conventional bicycle helmets are mainly made of plastic materials.
  • a hard outer plastic shell is usually arranged on the outside of conventional bicycle helmets, which allows the bicycle helmet to slide off the ground and distributes the force introduced over a large area and prevents the bicycle helmet from breaking apart on impact.
  • An inner damping layer which is often referred to as a liner and which is made of a plastically deformable material, is arranged on an inside of the outer plastic shell of conventional bicycle helmets.
  • the inner cushioning layer absorbs the forces introduced by the outer plastic shell through plastic deformation, which reduces the risk of injury to the cyclist's head.
  • conventional inner cushioning layers are often made of polymeric foams, in which the polymer forms a matrix formed of cells in which gas, in particular air, is trapped.
  • Corresponding conventional polymeric foams are produced by converting the polymer into a deformable, flowable state, then foaming it and then solidifying it.
  • PS polystyrene
  • PE polyolefins polyester
  • PP polypropylene
  • PVC polyvinyl chloride
  • conventional bicycle helmets In order to ensure an effective exchange of air between an inner area of the bicycle helmet facing the cyclist's head and an outer area of the bicycle helmet while using a bicycle helmet, conventional bicycle helmets often have a large number of openings designed as ventilation slots, which cover both the outer plastic shell and the inner damping layer of the helmet Break through the bike helmet. This can counteract overheating of the cyclist's head.
  • conventional bicycle helmets often have an adjustment mechanism in order to be able to adapt the bicycle helmet to the different head circumferences of different cyclists.
  • conventional bicycle helmets often have a fastener which fixes the bicycle helmet underneath the cyclist's chin in order to prevent loss of contact between the bicycle helmet and the cyclist's head in the event of an accident.
  • the DE 10 2013 018 345 A1 discloses a reinforcement structure of a bicycle helmet and its manufacturing method, the reinforcement structure comprising a helmet shell made of damping material and a structural body with a honeycomb structure.
  • the DE 10 2015 101 194 U1 discloses a bicycle helmet comprising an outer shell with a foam core.
  • the EP 2 804 500 B1 discloses a protective helmet with an outer shell, an inner layer, and a functional and/or decorative layer attached between the outer shell and the inner layer.
  • the DE 10 2007 006 860 A1 discloses protective headgear, particularly for cyclists, with a protective structure formed from spaced stiffeners.
  • the EP 0 612 843 A1 discloses a blown plastic bicycle crash helmet in which perforations are made.
  • the DE 10 2011 110 992 A1 discloses a bicycle helmet having an energy absorbing layer that acts as an impact absorber during a crash and an outer shell disposed outside of the energy absorbing layer.
  • the EP 3 000 341 A1 discloses a protective helmet comprising an outer contour that is curved in space and an inner contour that is also curved in space, as well as web-like elements that run between the outer contour and the inner contour and stiffen the protective helmet.
  • the DE 198 45 916 A1 discloses open-pored metal sponges formed into inserts which form a non-elastically deformable impact absorbing element in helmets and on impact surfaces used in motorcyclists' protective clothing.
  • the DE 10 2017 108 038 A1 discloses an adjustable cushioning insert for a protective helmet with a cushioning layer that has a plurality of cushioning elements, preferably with a honeycomb structure.
  • the DE 20 2016 100 235 U1 discloses a protective helmet with a helmet shell and with a damping layer which is arranged in the helmet shell and has a plurality of damping elements.
  • the DE 10 2014 110 480 A1 discloses a bicycle helmet comprising a shock absorbing helmet body and an outer shell for the helmet body, wherein the outer shell is made of acrylonitrile butadiene styrene (ABS) and wherein a plurality of ventilation openings extend through the outer shell and through the helmet body.
  • ABS acrylonitrile butadiene styrene
  • the EP 2 296 500 B1 discloses a crash helmet consisting of a thin and hard outer shell and a thick and soft inner shell, with at least one opening in the inner shell and the outer shell.
  • the U.S. 2015/047110 A1 discloses a bicycle helmet with a helmet shell and a shock-absorbing layer.
  • the U.S. 2019/231018 A1 discloses a bicycle helmet with an outer and inner helmet shell and a shock-absorbing layer.
  • the object of the present invention is to create a bicycle helmet which ensures advantageous protection for a cyclist's head in the event of an accident, with effective air exchange between an interior area and an exterior area of the bicycle helmet being ensured.
  • the object of the invention is achieved by a bicycle helmet according to claim 1 and by a damping element according to claim 19.
  • the dependent claims claim preferred embodiments.
  • the bicycle helmet according to the invention comprises a helmet body, the helmet body having a outer plastic shell and an inner damping layer, and wherein the helmet body has at least one opening which breaks through the outer plastic shell and the inner damping layer.
  • the bicycle helmet according to the invention according to the first aspect also includes at least one damping element, which is arranged in the at least one opening and is designed to absorb forces acting on the helmet body and to protect the cyclist's head.
  • the bicycle helmet according to the invention has the advantage that forces acting on the cyclist's head during an impact can be significantly reduced.
  • the outer plastic shell of the helmet body serves to distribute forces across the surface and prevents the inner damping layer, in particular the liner, of the helmet body from breaking apart.
  • the inner cushioning layer of the helmet body which is formed from a plastically deformable material, absorbs the forces introduced by the outer plastic shell through plastic deformation, which advantageously reduces the risk of injury to the cyclist's head.
  • the inner damping layer is arranged in particular on an inner side of the outer plastic shell facing the cyclist's head.
  • the protective effect of the bicycle helmet can also be particularly effectively increased by the damping element arranged in the at least one opening, since additional deformation of the at least one damping element can additionally reduce forces acting on the bicycle helmet during an impact.
  • the inner damping layer is compressed first and the at least one damping element is additionally compressed as the deformation path increases in order to ensure effective compensation of force peaks acting on the bicycle helmet.
  • the damping element arranged in the opening is particularly air-permeable, so that an effective exchange of air between an inner area and an outer area of the helmet body can continue to be ensured through the opening, so that overheating of the cyclist's head can be prevented.
  • the helmet body has a plurality of openings, in particular two or three openings
  • the bicycle helmet has a plurality of damping elements, in particular two or three damping elements, with one damping element of the plurality of damping elements in each opening of the plurality is arranged by breakthroughs.
  • the at least one opening extends in a longitudinal direction or in a transverse direction of the bicycle helmet.
  • the longitudinal direction of the bicycle helmet extends parallel to the direction of travel of the cyclist and the transverse direction of the bicycle helmet extends transversely to the direction of travel of the cyclist.
  • the at least one damping element arranged in the at least one opening also extends in the longitudinal direction or in the transverse direction of the bicycle helmet.
  • the opening and/or the at least one damping element arranged in the opening can extend diagonally to the longitudinal direction or diagonally to the transverse direction.
  • the helmet body has a helmet body top, a helmet body back and a helmet body front, the at least one opening with the at least one damping element arranged therein being arranged in the helmet body top, the helmet body having in particular at least one further opening which is in the helmet body back and/or or Helm body front is arranged, and wherein in particular in the at least one further opening no damping element are arranged.
  • the arrangement of the opening with the damping element on the upper side of the helmet body ensures particularly effective protection of the cyclist's head in the event of a direct impact.
  • the top of the helmet body corresponds to the area of the helmet body which is arranged on the top of the cyclist's head.
  • the helmet body has a plurality of further openings.
  • the further openings in which in particular no damping element is arranged, ensure a particularly effective exchange of air.
  • the further openings are arranged in particular in the helmet body rear and/or helmet body front.
  • the front of the helmet body corresponds to the area of the helmet body which is arranged on the forehead of the cyclist's head.
  • the back of the helmet body corresponds to the area of the helmet body which is arranged on the back of the cyclist's head.
  • the at least one opening extends in a longitudinal direction of the bicycle helmet and the at least one further opening extends in a transverse direction of the bicycle helmet.
  • the helmet body has the inside of the helmet body facing the cyclist's head, the helmet body having a plurality of ribs arranged next to one another, which are arranged on the inside of the helmet body and which laterally delimit the at least one opening, the ribs being designed in particular as longitudinal ribs , which extend in a longitudinal direction of the bicycle helmet, and / or wherein the ribs are designed in particular as transverse ribs, which extend in a transverse direction of the bicycle helmet.
  • the ribs ensure effective contact between the helmet body and the cyclist's head.
  • the inside of the helmet body corresponds to an inside of the inner cushioning layer of the helmet body, so that effective cushioning can be ensured by the ribs.
  • the at least one damping element has a damping element upper side, which is arranged on the outer plastic shell of the helmet body, and the at least one damping element has a damping element underside, which is arranged on the inner damping layer of the helmet body, the damping element having at least one first opening , which is formed in the damping element upper side in order to continue to allow air exchange through the opening, and/or wherein the damping element has at least one second opening which is formed in the damping element lower side in order to continue to allow air exchange through the opening.
  • the damping element extends from the outer plastic shell to the inner damping layer of the helmet body and thus advantageously fills the opening.
  • An effective exchange of air through the damping element can be ensured through the openings formed in the upper side of the damping element or the lower side of the damping element.
  • the at least one first opening is connected to the at least one second opening, in particular in terms of flow.
  • the at least one damping element has a chamber structure with a plurality of chambers, in particular honeycomb chambers, which are each laterally delimited by chamber webs, the chambers being open in particular at the top and/or bottom.
  • the chambers of the chamber structure ensure advantageous damping properties of the damping element.
  • the chamber webs stabilize the chambers of the chamber structure.
  • the Chambers designed in particular as honeycomb chambers corresponding honeycomb chambers have a hexagonal top and bottom surface. If the chambers are open in particular at the top and/or bottom, an effective exchange of air through the chambers can be ensured.
  • the chamber bars have a bar diameter of between 0.8 mm and 1.5 mm, in particular between 1.0 mm and 1.4 mm.
  • the chambers of the plurality of chambers each have a lower annular chamber plane, each an upper annular chamber plane and each an annular central chamber plane arranged between the lower annular chamber plane and the upper annular chamber plane, the annular central chamber plane being connected to the lower annular chamber plane and the upper annular chamber plane is connected by chamber webs, and in particular the lower annular chamber level, the upper annular chamber level and/or the annular central chamber level have a polygonal, in particular hexagonal ring structure.
  • the respective chamber levels are designed as ring-shaped chamber levels, which are open in particular in the center of the ring and which are connected to the chamber webs in particular at the edge of the ring.
  • the lower annular chamber plane and the upper annular chamber plane have the same diameter, and/or the diameter of the annular chamber center plane is less than the diameter of the lower annular chamber plane and less than the diameter of the upper annular chamber plane.
  • the technical advantage is achieved that by the particular same diameter of the lower and upper annular chamber level symmetrical application of force to the respective chambers can be ensured.
  • An advantageous deformability of the chamber can be ensured by the particularly smaller diameter of the ring-shaped central plane of the chamber.
  • the diameter of the upper and lower ring-shaped chamber levels also referred to as the cell width, is between 4 mm and 12 mm, in particular 8 mm.
  • the upper annular chamber levels of the plurality of chambers are each connected to one another laterally, and the lower annular chamber levels of the plurality of chambers are each connected to one another laterally in order to form a two-dimensionally extending chamber layer, and in particular a plurality of, in particular three , Two-dimensionally extending chamber layers are connected to one another in order to form a three-dimensional chamber structure of the damping element.
  • the respective chamber extends from the upper annular chamber plane to the lower annular chamber plane along a longitudinal chamber axis, and the chamber webs each extend at an angle to the longitudinal chamber axis.
  • the chamber structure has an inner chamber layer, which rests at least in sections on the inside of the helmet body, and/or the chamber structure has an outer chamber layer and/or at least one middle chamber layer, which is arranged between the inner chamber layer and the outer chamber layer. on, wherein the outer chamber layer and/or the at least one middle chamber layer is arranged at least in sections in the at least one opening.
  • the outer and/or the at least one middle chamber layer is arranged at least in sections in the at least one opening, so that the damping element can advantageously be fastened in the opening.
  • the inner chamber layer has at least one extension section which bears against the inside of the helmet body and which protrudes beyond the outer chamber layer and/or middle chamber layer.
  • the chambers each have a cylinder shape, a double cone shape, a double cone shape, and/or an inverse double pyramid shape.
  • the diameter of the upper side, in particular of the upper annular chamber level, and the lower side, in particular of the lower annular chamber level, of the respective chamber is larger than the diameter the center of the chamber, in particular the annular center plane of the chamber.
  • the at least one damping element in particular the outer chamber layer and/or inner chamber layer, is arranged recessed in the at least one opening opposite a helmet body outside and/or a helmet body inside of the helmet body.
  • the at least one damping element in particular the outer chamber layer and/or inner chamber layer, extends to the outside of the helmet body and/or to the inside of the helmet body of the helmet body in order to be flush with the outside of the helmet body and/or the inside of the helmet body.
  • the at least one damping element is formed from a deformable, in particular reversibly deformable, material, the deformable material being designed to absorb forces acting on the helmet body by deformation in order to protect the cyclist's head, the deformable material being in particular expanded polystyrene (EPS), and/or expanded polypropylene (EPP), and/or a copolymer of polystyrene (PS) and polypropylene (PP), and/or polyamide (PA) and/or thermoplastic polyurethane (TPU).
  • EPS expanded polystyrene
  • EPP expanded polypropylene
  • PS polystyrene
  • PP polypropylene
  • PA polyamide
  • TPU thermoplastic polyurethane
  • the outer plastic shell of the helmet body is formed from a carbon fiber reinforced plastic (CFRP), polycarbonate (PC) and/or acrylonitrile butadiene styrene (ABS), and/or the inner cushioning layer of the helmet body is formed from a deformable Plastic, in particular expanded polystyrene (EPS) and/or expanded polypropylene (EPP) and/or a copolymer of polystyrene (PS) and polypropylene (PP).
  • CFRP carbon fiber reinforced plastic
  • PC polycarbonate
  • ABS acrylonitrile butadiene styrene
  • EPS expanded polystyrene
  • EPP expanded polypropylene
  • PS polystyrene
  • PP polypropylene
  • the at least one opening has an opening length extending along a longitudinal direction of the bicycle helmet and an opening width extending along a transverse direction of the bicycle helmet, the opening length being greater than the opening width, and in particular the opening length being more than twice as long , what is the breakthrough width.
  • the at least one damping element is fastened in the at least one opening in a form-fitting, non-positive and/or cohesive manner, in particular non-positively.
  • the damping element is effectively fastened in the opening.
  • the at least one damping element is frictionally clamped in the at least one opening.
  • the second aspect of the present invention comprises a damping element which can be arranged in at least one opening in a helmet body of a bicycle helmet and is designed to absorb forces acting on the helmet body and to protect the cyclist's head, the damping element having a chamber structure with a plurality of chambers, in particular honeycomb chambers, each of which is laterally delimited by chamber webs, the chambers being open in particular at the top and/or bottom.
  • the embodiments mentioned for the bicycle helmet according to the first aspect are also embodiments for the damping element according to the second aspect.
  • FIG 1 shows a bicycle helmet 100 for a cyclist according to the prior art.
  • bicycle helmets are known in particular from the company POC SWEDEN AB, in particular their bicycle helmet Tectal, see at: https://www.pocsports.com/eu/tectal/10505.html.
  • the bicycle helmet 100 has a helmet body 101 which protects the cyclist's head.
  • the bicycle helmet 100 has an adjustment mechanism 103 which can be adjusted by the cyclist in order to enable an effective adjustment of the bicycle helmet 100 to the cyclist's head circumference.
  • the bicycle helmet 100 also has a fastener 105 which fixes the bicycle helmet 100 underneath the cyclist's chin, so that in the event of an accident the bicycle helmet 100 is prevented from losing contact with the cyclist's head.
  • a fastener 105 which fixes the bicycle helmet 100 underneath the cyclist's chin, so that in the event of an accident the bicycle helmet 100 is prevented from losing contact with the cyclist's head.
  • an adjustable wind deflector 107 can also be arranged on the bicycle helmet 100, which brings about a reduction in the air resistance of the bicycle helmet 100 and offers sun protection and glare protection.
  • the helmet body 101 has an outer plastic shell 109 and an inner cushioning layer 111 .
  • the outer plastic shell 109 is usually made of a hard plastic, so that in the event of an accident, the bicycle helmet 100 can effectively slide off the ground and the bicycle helmet 100 is prevented from breaking apart on impact.
  • the hard plastic of the outer plastic shell 109 of the helmet body 101 comprises a carbon fiber reinforced plastic (CFRP), polycarbonate (PC) and/or acrylonitrile butadiene styrene (ABS).
  • CFRP carbon fiber reinforced plastic
  • PC polycarbonate
  • ABS acrylonitrile butadiene styrene
  • An inner damping layer 111 is arranged on an inner side of the outer plastic shell 109 and consists of a plastically deformable Material is made to reduce the forces introduced through the outer plastic shell 109 by plastic deformation, thereby reducing the risk of injury to the cyclist's head.
  • the plastically deformable material of the inner damping layer 111 comprises polystyrene (PS), polyester (PE), polypropylene (PP) and/or polyvinyl chloride (PVC), in particular expanded polystyrene (EPS) and/or expanded polypropylene (EPP) and/or a Copolymer of polystyrene (PS) and polypropylene (PP).
  • the helmet body 101 also has a plurality of openings 113, which break through the outer plastic shell 109 and the inner cushioning layer 111, thereby ensuring effective air exchange between an inner area of the bicycle helmet 100 facing the cyclist's head and an outer area of the bicycle helmet 100.
  • FIGS. 2A, 2B and 3 show different views of a bicycle helmet 100 according to a first embodiment.
  • the bicycle helmet 100 is shown in a sectional view.
  • the bicycle helmet 100 is shown in a bottom view.
  • the bicycle helmet 100 is shown in a side sectional view.
  • the bicycle helmet 100 has a helmet body 101 with an outer plastic shell 109 and an inner damping layer 111 .
  • the helmet body 101 has at least one opening 113 which breaks through the outer plastic shell 109 and the inner damping layer 11 .
  • the bicycle helmet 100 according to the first embodiment has in particular three openings 113 arranged next to one another in the helmet body 101 .
  • the bicycle helmet 100 has at least one damping element 115 which is arranged in the at least one opening 113 and which is designed to absorb forces acting on the helmet body 101 and to protect the cyclist's head.
  • the bicycle helmet 100 has in particular three damping elements 115, with a damping element 115 in each case an opening 113 is arranged.
  • damping elements 115 which in particular have a chamber structure, reference is made to the following illustrations, in particular those Figures 3 , 5 and 6 referred.
  • the openings 113 and the damping elements 115 arranged in the openings 113 extend in particular in a longitudinal direction 117-1 of the bicycle helmet 100, the longitudinal direction 117-1 of the bicycle helmet 100 being arranged parallel to the direction of travel of the cyclist.
  • the openings 113 and the damping elements 115 arranged in the openings 113 can extend in a transverse direction 117-2 extending transversely to the longitudinal direction 117-1, or the openings 113 and the damping elements 115 arranged in the openings 113 can extend diagonally to the Extend longitudinally 117-1 or transversely 117-2.
  • the helmet body 101 has a helmet body top 101-1, a helmet body back 101-2 and a helmet body front 101-3.
  • the helmet body top 101-1 is in contact with the rider's head top.
  • the helmet body back 101-2 is in contact with the back of the rider's head.
  • the helmet body front 101-3 is in contact with the forehead of the cyclist.
  • the openings 113 with the damping elements 115 arranged therein are arranged in particular in the helmet body top 101-1. This enables forces acting on the helmet body 101 to be effectively absorbed or distributed in the event of an impact.
  • the at least one opening 113 has an opening length 113-1, which extends along the longitudinal direction 117-1 of the bicycle helmet 100, and the at least one opening 113 has an opening depth 113-2, which extends from a helmet body outside 101-5 of the helmet body 100 to a helmet body inside 101-4 of the helmet body 101 extends.
  • the opening depth 113-2 is in particular less than the opening length 113-1.
  • the at least one opening 113 has an opening width 113-3 extending along the transverse direction 117-2 of the bicycle helmet 100, the opening length 113-1 being greater than the opening width 113-3, and the opening length 113-1 in particular being longer than 2 times as long as the aperture width 113-3.
  • the helmet body 101 has, in particular, at least one further opening 119, which is arranged in the helmet body rear side 101-2 and/or the helmet body front side 101-3, and in particular no damping element 115 is arranged in the at least one further opening 119.
  • the further openings 119 are thus available in a particularly advantageous manner for an exchange of air.
  • the at least one further opening 119 extends in the transverse direction 117-2 of the bicycle helmet 100.
  • the helmet body 100 has a helmet body inside 101-4 facing the cyclist's head, on which a plurality of, in particular three, ribs 121 arranged next to one another are arranged, which laterally delimit the at least one opening 113.
  • Each of the openings 113 is thus delimited laterally by ribs 121 .
  • the ribs 121 ensure effective contact of the inner cushioning layer 111 of the helmet body 101 with the cyclist's head.
  • the ribs 121 are designed in particular as longitudinal ribs which extend in the longitudinal direction 117 - 1 of the bicycle helmet 100 .
  • the ribs 121 can also be designed in particular as transverse ribs, which extend in the transverse direction 117 - 2 of the bicycle helmet 100 .
  • a damping element 115 which is arranged in an opening 113 of the helmet body 101, of the plurality of damping elements 115 is shown in a sectional view.
  • the damping element 115 has a damping element upper side 115 - 1 which is arranged on the outer plastic shell 109 of the helmet body 101 .
  • the damping element 115 has a damping element underside 115 - 2 which is arranged on the inner damping layer 111 of the helmet body 101 .
  • the damping element 115 extends from the helmet body outside 101-5 through the opening 113 to the helmet body inside 101-4.
  • At least one first opening 123-1 is formed in the damping element top side 115-1 and at least one second opening 123-2 is formed in the damping element bottom side 115-2. An exchange of air through the opening 113 can thus continue to be made possible through the first and second openings 123-1, 123-2.
  • the damping element 115 has a chamber structure with a plurality of chambers 125, in particular honeycomb chambers 125, the chambers 125 being open at the top and bottom in order to allow air to be exchanged from the interior of the helmet body 101 to an exterior of the helmet body 101.
  • the chambers 125 are connected to one another laterally in order to form a chamber layer 127 extending two-dimensionally.
  • a plurality of the two-dimensionally extending chamber layers 127 are in turn connected to one another on their upper and lower sides in order to form a three-dimensional chamber structure of the damping element 115 .
  • the embodiment shown has the three-dimensional chamber structure of the damping element 115 on three chamber layers 127, an outer chamber layer 127-1, a middle chamber layer 127-2 and an inner chamber layer 127-3.
  • the outer chamber layer 127-1 and the middle chamber layer 127-2 are arranged in the opening 113, whereas the inner chamber layer 127-3 rests at least in sections with extension sections 127-4 on the helmet body inside 101-4 of the helmet body 101.
  • the damping element 115 in particular the inner chamber layer 127-3, can or is flush with the inside of the helmet body 101-4
  • the damping element 115 is arranged in a recessed manner in the at least one opening 113, in which, for example, the inner chamber layer 127-3 is dispensed with.
  • the damping element 115 in particular the outer chamber layer 127-1, extends to the helmet body outside 101-5 to be flush with the helmet body outside 101-5.
  • the damping element 115 in particular the outer chamber layer 127-1, can be arranged in a recessed manner in the opening 113 in relation to the helmet body outside 101-5.
  • the at least one damping element 115 is fastened in the at least one opening 113 in a form-fitting, non-positive and/or cohesive manner, in particular non-positively. Effective attachment of the damping element 115 in the opening 113 can be ensured by pressing the damping element 115 into the at least one opening 113, in particular by means of a friction fit.
  • the at least one damping element 115 is formed from a deformable, in particular a reversibly deformable, material, with the deformable material being designed to absorb forces acting on the helmet body 101 by deformation in order to protect the cyclist's head to protect.
  • the deformable material includes, in particular, expanded polystyrene (EPS) and/or expanded polypropylene (EPP) and/or a copolymer of polystyrene (PS) and polypropylene (PP) and/or polyamide (PA) and/or thermoplastic polyurethane (TPU ).
  • EPS expanded polystyrene
  • EPP expanded polypropylene
  • PS polystyrene
  • PP polypropylene
  • PA polyamide
  • TPU thermoplastic polyurethane
  • FIGS. 4A and 4B show different views of a bicycle helmet 100 according to a second embodiment.
  • a top view of the bicycle helmet 100 is shown, whereas in FIG Figure 4B a bottom view of the bicycle helmet 100 is shown.
  • the bicycle helmet 100 shown according to the second embodiment differs from the bicycle helmet 100 according to the first embodiment in that the damping elements 115 arranged in the openings 113 are arranged recessed in the respective opening 113 opposite a helmet body outside 101-5 of the helmet body 101.
  • figure 5 shows a section of a chamber layer 127 of a damping element 115 of a bicycle helmet 100 according to an embodiment.
  • the chamber layer 127 consists of a plurality of chambers 125, in particular honeycomb chambers 125, which are each connected to one another laterally in order to form the two-dimensionally extending chamber layer 127.
  • the detail shown shows only a one-dimensionally extending row of chambers 125 of the two-dimensionally extending chamber layer 127.
  • the one-dimensionally extending rows of chambers 125 shown may be connected along their longitudinal sides to form the two-dimensionally extending chamber layer 127.
  • a plurality of the corresponding chamber layers 127 can be connected to each other at their upper and lower sides in order to form a three-dimensional chamber structure of the cushioning element 115 .
  • Each chamber 125 of the chamber layer 127 is delimited laterally by chamber webs 129 .
  • the chambers 125 each have a lower annular chamber level 125-1, each having an upper annular chamber level 125-3 and each having an annular central chamber level 125-2 arranged between the lower annular chamber level 125-1 and the upper annular chamber level 125-3.
  • the lower annular chamber level 125-1, the upper annular chamber level 125-3, and the central annular chamber level 125-2 are each open in the center to allow efficient exchange of air through the respective chamber 125.
  • the lower annular chamber level 125-1, the upper annular chamber level 125-3 and/or the annular central chamber level 125-2 have a polygonal, in particular hexagonal, ring structure.
  • the lower annular chamber level 125-1 is connected to the annular central chamber level 125-2 by chamber webs 129 in each case.
  • the upper annular chamber level 125-1 is connected to the annular central chamber level 125-2 by chamber webs 129 in each case.
  • the lower annular chamber level 125-1 and the upper annular chamber level 125-3 have the same diameter.
  • the diameter of the central annular chamber plane 125-2 is less than the diameter of the lower annular chamber plane 125-1 and less than the diameter of the upper annular chamber plane 125-3.
  • the chambers 125 each have an hourglass shape, in particular a double cone shape.
  • the chambers 125 can also each have a cylinder shape, a double cone shape, and/or an inverse double pyramid shape.
  • the respective chambers 125 can be compressed along a chamber longitudinal axis 131 when a force acts on the chamber layer 127, e acting force can effectively absorb.
  • figure 6 shows a three-dimensional chamber structure of a damping element 115 of a bicycle helmet 100 according to a further embodiment.
  • the damping element 115 shown has a three-dimensional chamber structure with a plurality of chambers 125 open at the top and bottom, in particular honeycomb chambers 125, which are laterally delimited by chamber webs 129.
  • Each of the chambers 125 has a lower annular chamber plane 125-1, an upper annular chamber plane 125-3, and an intermediate annular chamber plane 125-2.
  • the ring-shaped central chamber plane 125-2 is connected by the chamber webs 129 to the upper ring-shaped chamber plane 125-3 and the lower ring-shaped chamber plane 125-1.
  • the upper annular chamber levels 125-3 of the plurality of chambers 125 are connected to one another laterally.
  • the lower annular chamber planes 125-1 of the plurality of chambers 125 are connected to one another laterally in order to form a chamber layer 127 extending in two dimensions.
  • the three-dimensionally extending chamber structure of the damping element 115 is formed from a plurality of chamber layers 127, in particular three chamber layers 127.
  • the three chamber layers 127 comprise an inner chamber layer 127-3, which is attached at least in sections to an in 6 not shown helmet body inside 101-4 of a helmet body 101 of a bicycle helmet 100 is applied.
  • the three chamber layers 127 also include an outer chamber layer 127-1, which is at least partially in an in 6 not shown breakthrough 113 of the helmet body 101 is arranged.
  • the three chamber layers 127 also include a middle chamber layer 127-2, which is located between the inner chamber layer 127-3 and the outer chamber layer 127-1 is arranged.
  • the middle chamber layer 127-2 is also at least partially in an in 6 not shown breakthrough 113 of the helmet body 101 is arranged.
  • the inner chamber layer 127-3 has at least one extension section 127-4, in particular two extension sections 127-4, which rests against the helmet body inside 101-4 of the helmet body 101 and which extends over the outer chamber layer 127-1 and/or middle chamber layer 127-2 protrudes.
  • FIGS. 7A, 7B and 7C show detailed views of a chamber 125 of a damping element 115 of a bicycle helmet 100 according to a further embodiment.
  • chamber 125 includes a lower annular chamber level 125-1, an upper annular chamber level 125-3, and a central annular chamber level 125-2.
  • the ring-shaped central chamber plane 125-2 is connected to the lower ring-shaped chamber plane 125-1 and the upper ring-shaped chamber plane 125-3 by chamber webs 129.
  • the following parameters of the chamber 125 can be varied, the density of the material of the chamber levels 125-1, 125-2, 125-3 and/or the chamber webs 129, the cell width 133 of the chamber 125, and a Twisting angle 135, wherein the twisting angle 135 is applied between a first contact point 137-1 of the chamber web 129 with the upper annular chamber plane 125-3 and a second contact point 137-2 of the chamber web 129 with the annular chamber center plane 125-2.
  • the angle of rotation 135 is preferably between 1° and 45°, in particular between 10° and 30°, in particular 20°.
  • the material of the chamber levels 125-1, 125-2, 125-3 and/or the chamber webs 129 comprises, in particular, expanded polystyrene (EPS) and/or expanded polypropylene (EPP) and/or a copolymer of polystyrene ( PS) and polypropylene (PP), and/or polyamide (PA) and/or thermoplastic polyurethane (TPU).
  • EPS expanded polystyrene
  • EPP expanded polypropylene
  • PA polyamide
  • TPU thermoplastic polyurethane
  • FIGS. 8A and 8B show further detailed views of a chamber 125 of a damping element 115 of a bicycle helmet 100 according to further embodiments.
  • FIGS Figure 8A Chamber 125 shown corresponds to that in FIGS Figures 7A, 7B and 7C Chamber 125 shown.
  • the one in the Figure 8B Chamber 125 shown is based on the Figure 8A chamber 125 shown, with a twisting angle 135 of the in Figure 8B Chamber 125 shown is greater than the corresponding angle of rotation 135 of the in Figure 8A Chamber 125 shown is, and wherein a chamber angle 139 of the in Figure 8B Chamber 125 shown is less than the corresponding chamber angle 139 of the in Figure 8A Chamber 125 shown is.
  • the chamber angle 139 is defined as the angle which is applied between the lower annular chamber plane 125-1 and a chamber web 129 which connects the lower annular chamber plane 125-1 to the annular central chamber plane 125-2.
  • figure 9 shows a detailed view of a chamber 125 of an in figure 6 damping element 115 shown.
  • Chamber 125 shown is referred to the detailed embodiments according to the Figures 7A, 7B, 7C , 8A and 8B referred.
  • the present invention has the advantage that the use of the at least one damping element 115 in an opening 113 in a helmet body 101 of a bicycle helmet 100 can significantly reduce the forces acting on the cyclist's head in the event of an impact, so that the risk of injury to the cyclist in a accident can be reduced.
  • damping element 115 which in particular comprises chambers 125.
  • corresponding damping elements 115 can advantageously be manufactured, e.g. by means of 3D printing processes.
  • the open structure of the damping element 115 can also ensure an advantageous exchange of air from an inner area of the bicycle helmet 100 to an outer area of the bicycle helmet 100, so that the risk of heat build-up for the cyclist can be reduced.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Claims (19)

  1. Casque de vélo (100) destiné à un cycliste, pourvu :
    d'un corps de casque (101), le corps de casque (101) comportant une coque extérieure (109) en matière plastique et une couche d'amortissement (111) intérieure et le corps de casque (101) comportant au moins un ajour (113), lequel traverse la coque extérieure (109) en matière plastique et la couche d'amortissement (111) intérieure,
    d'au moins un élément amortisseur (115), lequel est placé dans l'au moins un ajour (113) et est conçu pour absorber des forces agissant sur le corps de casque (101) et pour protéger la tête du cycliste,
    caractérisé en ce que
    l'au moins un élément amortisseur (115) comporte une structure compartimentée pourvue d'une multiplicité de compartiments (125), lesquels sont respectivement délimités latéralement par des barrettes (129) de compartiment,
    les compartiments (125) de la multiplicité de compartiments (125) comportant chacun un plan de compartiment (125-1) annulaire inférieur, chacun un plan de compartiment (125-3) annulaire supérieur et chacun un plan de compartiment (125-2) annulaire médian, placé entre le plan de compartiment (125-1) annulaire inférieur et le plan de compartiment (125-3) annulaire supérieur,
    le plan de compartiment (125-2) annulaire médian étant assemblé avec le plan de compartiment (125-1) annulaire inférieur et le plan de compartiment (125-3) annulaire supérieur par des barrettes (129) de compartiment,
    le compartiment (125) respectif s'étendant du plan de compartiment (125-3) annulaire supérieur vers le plan de compartiment (125-1) annulaire inférieur le long d'un axe longitudinal (131) de compartiment, et les barrettes (129) de compartiment s'étendant chacune de manière angulaire par rapport à l'axe longitudinal (131) de compartiment.
  2. Casque de vélo (100) selon la revendication 1, le corps de casque (101) comportant une multiplicité d'ajours (113), notamment deux ou trois ajours (113),
    caractérisé en ce que le casque de vélo (100) comporte une multiplicité d'éléments amortisseurs (115), notamment deux ou trois éléments amortisseurs (115),
    chaque fois un élément amortisseur (115) de la multiplicité d'éléments amortisseurs (115) étant placé dans chaque fois un ajour (113) de la multiplicité d'ajours (113).
  3. Casque de vélo (100) selon la revendication 1 ou 2, l'au moins un ajour (113) s'étendant dans une direction longitudinale (117-1) ou dans une direction transversale (117-2) du casque de vélo (100).
  4. Casque de vélo (100) selon l'une quelconque des revendications précédentes, le corps de casque (101) comportant une face supérieure (101-1) de corps de casque, et une face arrière (101-2) de corps de casque et une face avant (101-3) de corps de casque, l'au moins un ajour (113) étant placé avec l'au moins un élément amortisseur (115) placé en son intérieur dans la face supérieure (101-1) de corps de casque,
    le corps de casque (101) comportant notamment au moins un ajour (119) additionnel, lequel est placé dans la face arrière (101-2) de corps de casque et / ou dans la face avant (101-3) de corps de casque et notamment dans l'au moins un ajour (119) additionnel n'étant placé aucun élément amortisseur (115).
  5. Casque de vélo (100) selon la revendication 4, l'au moins un ajour (113) s'étendant dans une direction longitudinale (117-1) du casque de vélo (100), et l'au moins un ajour (119) additionnel s'étendant dans une direction transversale (117-2) du casque de vélo (100).
  6. Casque de vélo (100) selon l'une quelconque des revendications précédentes 1 à 5, le corps de casque (100) comportant une face intérieure (101-4) de corps de casque dirigée vers la tête du cycliste, le corps de casque (100) comportant une multiplicité de nervures (121) placées côte à côte, lesquelles sont placées sur la face intérieure (101-4) de corps de casque et lesquelles délimitent latéralement l'au moins un ajour (113),
    les nervures (121) étant conçues notamment sous la forme de nervures longitudinales, lesquelles s'étendent dans une direction longitudinale (117-1) du casque de vélo (100), et / ou les nervures (121) étant conçues notamment sous la forme de nervures transversales, lesquelles s'étendent dans une direction transversale (117-2) du casque de vélo (100).
  7. Casque de vélo (100) selon l'une quelconque des revendications précédentes 1 à 6, l'au moins un élément amortisseur (115) comportant une face supérieure (115-1) d'élément amortisseur, laquelle est placée sur la coque extérieure (109) en matière plastique du corps de casque (101), et l'au moins un élément amortisseur (115) comportant une face inférieure (115-2) d'élément amortisseur, laquelle est placée sur la couche d'amortissement (111) intérieure du corps de casque (101),
    l'élément amortisseur (115) comportant au moins un premier orifice (123-1), lequel est façonné dans la face supérieure (115-1) d'élément amortisseur, pour permettre par ailleurs un échange d'air à travers l'ajour (113),
    et / ou l'élément amortisseur (115) comportant au moins un deuxième orifice (123-2), lequel est façonné dans la face inférieure (115-2) d'élément amortisseur, pour permettre par ailleurs un échange d'air à travers l'ajour (113).
  8. Casque de vélo (100) selon l'une quelconque des revendications précédentes 1 à 7, l'au moins un élément amortisseur (115) comportant une structure compartimentée pourvue d'une multiplicité de compartiments alvéolés (125), lesquels sont délimités chacun par des barrettes (129) de compartiment, les compartiments (125) étant ouverts notamment sur le dessus et / ou sur le dessous.
  9. Casque de vélo (100) selon l'une quelconque des revendications précédentes,
    le plan de compartiment (125-1) annulaire inférieur, le plan de compartiment (125-3) annulaire supérieur et / ou le plan de compartiment (125-2) annulaire médian comportant une structure annulaire polygonale, notamment hexagonale.
  10. Casque de vélo (100) selon la revendication 9, le plan de compartiment (125-1) annulaire inférieur et le plan de compartiment (125-3) annulaire supérieur présentant le même diamètre, et / ou
    le diamètre du plan de compartiment (125-2) annulaire médian étant inférieur au diamètre du plan de compartiment (125-1) annulaire inférieur et inférieur au diamètre du plan de compartiment (125-3) annulaire supérieur.
  11. Casque de vélo (100) selon l'une quelconque des revendications précédentes, les plans de compartiments (125-3) annulaires supérieurs de la multiplicité de compartiments (125) étant chaque fois assemblés latéralement les uns aux autres et les plans de compartiments (125-1) annulaires inférieurs de la multiplicité de compartiments (125) étant chaque fois assemblés latéralement les uns aux autres pour créer une couche de compartiments (127, 127-1, 127-2, 127-3) s'étendant de manière bidimensionnelle, et
    notamment une multiplicité, notamment trois couches de compartiments (127, 127-1, 127-2, 127-3) s'étendant de manière bidimensionnelle étant assemblées les unes aux autres pour créer une structure compartimentée tridimensionnelle de l'élément amortisseur (115).
  12. Casque de vélo (100) selon l'une quelconque des revendications précédentes, la structure compartimentée comportant une couche de compartiments (127-3) intérieure, laquelle est adjacente au moins par sections à une face intérieure (101-4) de corps de casque du corps de casque (101), et/ou
    la structure compartimentée comportant une couche de compartiments (127-1) extérieure et / ou au moins une couche de compartiments (127-2) médiane, laquelle est placée entre la couche de compartiments (127-3) intérieure et la couche de compartiments (127-1) extérieure,
    la couche de compartiments (127-1) extérieure et / ou l'au moins une couche de compartiments (127-2) médiane étant placée au moins par sections dans l'au moins un ajour (113).
  13. Casque de vélo (100) selon l'une quelconque des revendications précédentes, les compartiments (125) présentant la forme d'un cylindre, la forme d'un losange, la forme d'un double-cône, et/ou la forme d'une double pyramide inversée.
  14. Casque de vélo (100) selon l'une quelconque des revendications précédentes, l'au moins un élément amortisseur (115), notamment la couche de compartiments (127-1) extérieure et / ou la couche de compartiments (127-3) intérieure étant placée de manière plus profonde par rapport à une face extérieure (101-5) de corps de casque et / ou à une face intérieure (101-4) de corps de casque du corps de casque (101) dans l'au moins un ajour (113), ou
    l'au moins un élément amortisseur (115), notamment la couche de compartiments (127-1) extérieure et / ou la couche de compartiments (127-3) intérieure s'étendant jusqu'à une face extérieure (101-5) de corps de casque et / ou jusqu'à une face intérieure (101-4) de corps de casque du corps de casque (101), pour se terminer à fleur de la face extérieure (101-5) de corps de casque et/ou de la face intérieure (101-4) de corps de casque.
  15. Casque de vélo (100) selon l'une quelconque des revendications précédentes, l'au moins un élément amortisseur (115) étant façonné en une matière déformable, notamment réversiblement déformable, et la matière déformable étant conçue pour absorber par déformation des forces agissant sur le corps de casque (101), pour protéger la tête du cycliste,
    la matière déformable comprenant notamment un polystyrène expansé (EPS), et / ou un polypropylène expansé (EPP), et / ou un copolymère de polystyrène (PS) et de polypropylène (PP), et /ou un polyamide (PA) et / ou un polyuréthane thermoplastique (TPU).
  16. Casque de vélo (100) selon l'une quelconque des revendications précédentes, la coque extérieure (109) en matière plastique du corps de casque (101) étant façonnée en une matière plastique renforcée par fibres de carbone (CFK), en un polycarbonate (PC) et/ou en un acrylonitrile butadiène styrène (ABS), et / ou
    la couche d'amortissement (111) intérieure du corps de casque (101) étant façonnée en une matière plastique déformable, notamment en un polystyrène expansé (EPS) et / ou en un polypropylène expansé (EPP) et/ou en un copolymère de polystyrène (PS) et de polypropylène (PP).
  17. Casque de vélo (100) selon l'une quelconque des revendications précédentes, l'au moins un ajour (113) présentant une longueur (113-1) d'ajour s'étendant le long d'une direction longitudinale (117-1) du casque de vélo (100) et une largeur (113-3) d'ajour s'étendant le long d'une direction transversale (117-2) du casque de vélo (100),
    la longueur (113-1) d'ajour étant supérieure à la largueur (113-3) d'ajour, et notamment la longueur (113-1) d'ajour ayant plus de 2 fois la longueur de la largueur (113-3) d'ajour.
  18. Casque de vélo (100) selon l'une quelconque des revendications précédentes, l'au moins un élément amortisseur (115) étant fixé dans l'au moins un ajour (113) par complémentarité de forme, par complémentarité de force et / ou par conjonction de matière, notamment par complémentarité de force.
  19. Elément amortisseur (115), lequel est susceptible d'être placé dans au moins un ajour (113) d'un corps de casque (101) d'un casque de vélo (100) et lequel est conçu pour absorber des forces agissant sur le corps de casque (101) et pour protéger la tête du cycliste,
    caractérisé en ce que
    l'élément amortisseur (115) comporte une structure compartimentée pourvue d'une multiplicité de compartiments (125), notamment de compartiments alvéolés (125), lesquels sont respectivement délimités latéralement par des barrettes (129) de compartiment,
    les compartiments (125) étant ouverts notamment sur le dessus et / ou sur le dessous, les compartiments (125) de la multiplicité de compartiments (125) comportant chacun un plan de compartiment (125-1) annulaire inférieur, chacun un plan de compartiment (125-3) annulaire supérieur et chacun un plan de compartiment (125-2) annulaire médian placé entre le plan de compartiment (125-1) annulaire inférieur et le plan de compartiment (125-3) annulaire supérieur, plan de compartiment (125-2) annulaire médian étant assemblé par des barrettes (129) de compartiment avec le plan de compartiment (125-1) annulaire inférieur et le plan de compartiment (125-3) annulaire supérieur,
    le compartiment (125) respectif s'étendant du plan de compartiment (125-3) annulaire supérieur vers le plan de compartiment (125-1) annulaire inférieur le long d'un axe longitudinal (131) de compartiment, et les barrettes (129) de compartiment s'étendant respectivement de manière angulaire par rapport à l'axe longitudinal (131) de compartiment.
EP19194500.5A 2019-08-29 2019-08-29 Casque de bicyclette pourvu d'élément d'amortissement Active EP3785558B1 (fr)

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EP0612843A1 (fr) 1993-02-22 1994-08-31 Unilever N.V. Agents de nettoyage acides granulaires
DE19845916A1 (de) 1998-10-06 2000-04-13 Juergen Gehrmann Metallschwämme als Schockabsorber für Helme und Prallflächen
DE102007006860A1 (de) 2006-02-12 2007-08-23 Brückl, Franz Schützende Kopfbedeckung
DE102008026092A1 (de) 2008-05-30 2009-12-03 Brückl, Franz Sturzhelm mit aufprallsicherer Beleuchtung
SE534868C2 (sv) 2010-05-07 2012-01-24 Mips Ab Hjälm med glidningsfrämjare anordnad vid ett energiabsorberande lager
DE102012022760A1 (de) 2012-01-15 2013-07-18 Birdy Company Gmbh Schutzhelm und Trägerabschnitt dafür
US10736373B2 (en) * 2013-08-13 2020-08-11 Smith Optics, Inc. Helmet with shock absorbing inserts
TW201507646A (zh) 2013-08-30 2015-03-01 Aegis Sports Inc 安全頭盔之強化結構及其製造方法
DE102014110480A1 (de) 2014-07-24 2016-01-28 ABUS August Bremicker Söhne KG Fahrradhelm
DE102014113889A1 (de) 2014-09-25 2016-03-31 Stefan Züll Schutzhelm
DE202015101194U1 (de) 2015-03-10 2015-03-18 Pending System Gmbh & Co. Kg Helm, insbesondere Fahrradhelm
DE202016100235U1 (de) 2016-01-19 2017-04-20 Rockwell Gmbh Schutzhelm
CN109068783B (zh) * 2016-03-04 2022-10-21 韦弗赛尔有限公司 用于头盔和其他物品的保护衬里
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DE102017108038A1 (de) 2017-04-13 2018-10-18 Rockwell Gmbh Verstellbarer Dämpfungseinsatz

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