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
  • A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
  • A42B3/063—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures
  • A42B3/064—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures with relative movement between layers
• • A—HUMAN NECESSITIES
  • A42—HEADWEAR
  • A42B—HATS; HEAD COVERINGS
  • A42B1/00—Hats; Caps; Hoods
  • A42B1/04—Soft caps; Hoods
  • A42B1/08—Soft caps; Hoods with protection against blows
• • 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
  • A42B3/125—Cushioning devices with a padded structure, e.g. foam
  • A42B3/128—Cushioning devices with a padded structure, e.g. foam with zones of different density

Definitions

• the invention relates to a protective helmet, according to the preamble of claim 1, and a method for reducing or preventing a head injury, according to the preamble of claim 19.
• protective helmets which serve to protect the head of a wearer from injury. These protective helmets are adapted to the human head, which seen from above an oval shape, which can be distinguished in a "round oval” shape and a "long oval” shape. Conventional safety helmets take this form to be similar to the human head, but especially to look narrow. Only narrow helmets, which look small from the front, are on the market for sale. Round helmets look wide from the front and are not successful in the market.
• these protective helmets which can be designed differently depending on the field of application, consist of an outer shell made of a hard material, which usually has an oval basic shape, and an impact on the head receiving, shock-absorbing internal support means on the inside the outer shell is arranged and on its human head facing side (inside) is also of oval shape.
• a disadvantage of these helmets that while they protect against shocks that meet the helmet or his bump cap translationally, but not against rotational forces acting on impact, so that it comes in many accidents despite the use of a protective helmet to serious head injuries ,
• European Patent Specification EP 1 246 548 B1 describes a protective helmet in which a thin, lubricious shell is introduced between the inner shell and the outer shell.
• the inner shell twists against the outer shell and reduces the introduced spins.
• Disadvantage of this solution is that the rotational movement is inhibited by the oval shape of the helmet in its general form.
• a protective helmet in which the inside of the hard, outer shell, an inner support means of synthetic resin foam is disposed, wherein the inner support means in a main insert part and a sub-insert part, which is arranged in a main insert part recess is fitted.
• the secondary insert part has a density that is 20% to 80% of the density of the main insert part.
• the protective helmet according to the invention, with the characterizing feature of claim 1, and the method according to the invention for reducing or preventing a head injury, with the characterizing feature of claim 19, have the advantage that, by a division of the shock-absorbing or shock-absorbing and comforting internal support means Liner, comfort padding, protective padding, knobbed baskets and / or banded carrying devices (eg carrier spreaders, carrying straps, headbands or the like), in a tray-side insert and a head-side insert which are rotatable against each other (preferably from a specific force) in at least one direction, a sliding surface is present, which is the function assumes a rotational surface, so that the introduced by a blow rotational acceleration is greatly reduced or prevented, since the head-side insert and the shell-side insert and thus the head of the wearer and the helmet outer shell against each other quickly and without inhibition are preferably rotatable in all directions.
• the division may relate to the shock-absorbing and / or the non-shock-absorbing part of the inner support device.
• the sliding surface is a spherical surface, which may also be defined only over partial regions of the hemisphere body, and / or a rotationally symmetrical body (for example ellipsoids of revolution, etc.).
• the head-side insert and the shell-side insert have different densities.
• the inner support means may be made of closed cellular and / or open cellular foams. In general, all materials that are suitable for shock absorption of protective helmets are conceivable. Included here are also soft foams, which are only for comfort padding, knobbed baskets or other carrying facilities.
• the protective helmet according to the invention different densities occur within the head-side insert and / or within the shell-side insert. This will allow, depending on the geometry of the helmet in its different regions, where different requirements for the Strength of the material used, the material is adapted to these special requirements.
• the use of liners made of foams preferably particle foams (particle foams), in particular foamed polystyrene (EPS), expanded polypropylene (EPP), polyurethane (PU), or the like. , advantageous.
• EPS foamed polystyrene
• EPP expanded polypropylene
• PU polyurethane
• separate segments are made for the different regions.
• the density of the individual components is adapted to the regional differences. Subsequently, the components are joined by means of plugging, gluing or foaming.
• the use of components is possible by means of MehrzenverCumung (multi-density) with up to 3 different densities in one component; preferably as dual-density liners.
• the density is varied in a two-stage process within a component.
• the individual zones are delimited by slides. The zones are filled and prefabricated separately. During the molding process, the slides are pulled out of the tool and the beads of the individual zones are welded together to form a component. This method can be used to produce precisely defined areas of different densities.
• a component with different densities can also be produced in the single-stage process by selectively filling the tool areas, in part by utilizing the filling pressure or by means of an air curtain.
• the head-side insert and / or the shell-side insert on a surface that have no bumps by spraying the EPS process, because a process with locally nozzle-free tool is applied or because a tool with a porous surface is used.
• the head-side insert and / or the shell-side insert a structured surface (golf ball) on. to lower the footprints of the dies of the EPS forming process and to prevent unevenness of the surface.
• an intermediate layer is arranged between the head-side insert and the shell-side insert.
• the intermediate layer could, if it is particularly stiff and made of carbon fiber, for example, have a positive effect on the shock absorption. Should there be no complete interlayer, for example, punctual, star-shaped or crosswise mounted sliding points are conceivable.
• the intermediate layer may be a liquid or a gel. The viscosity of the liquid or gel is in this case adjusted so that you can achieve different coefficients of friction (shear values) and thus also various accelerations with their help. This sets the rotation acceleration curve.
• the intermediate layer is firmly connected to the head-side insert or the shell-side insert.
• the intermediate layer is harder than the head-side insert.
• the head-side insert and the shell-side insert are connected to each other by at least one connecting means.
• this connecting means can be a pressed-EPS body, which can also absorb energy for shock absorption (keyword: fixed storage). It is also conceivable that this connection means may be a spring damper system, which resets the system in its initial position.
• a preferred embodiment may be rubber bands (for example in double T form) (keyword: floating storage).
• the connecting means has at least one predetermined breaking point.
• This intended use point can also be a textile structure that ruptures at a controlled force.
• the predetermined breaking point can also be in the connecting means, preferably also an EPS cylinder or cone (dowel). This cylinder is preferably adjusted with respect to its breakaway force exactly to the respective test standard. Variations are conceivable on density, bead size and diameter of the predetermined breaking point, wherein the defined breakaway can also take place via a metal cutting plate.
• the head-side insert on its side facing the shell-side insert at least one survey.
• the survey has at least one predetermined breaking point.
• the execution of this predetermined breaking point can be such that a signal is triggered when breaking the predetermined breaking point. This can be used to signal that the system was in operation and the helmet is no longer usable.
• an SOS emergency call signal can also be sent
• the survey cooperates with a damping means.
• a constructive element is arranged around the elevation which holds the trays in position and collapses in a controlled manner upon impact.
• the collection projects into the shell-side insert.
• an indicator indicates a twist carried out and / or an existing rotation of the scarf en sketchen insert for head-side insert.
• the indicator is preferably visible to the outside and / or inside and indicates that the system has been triggered. This is particularly important after an accident, because from the outside hard hats often look undamaged, even though they have to absorb high energy.
• the indicator indicates that the system has moved and therefore has taken up rotational energy.
• the head-side insert and / or the shell-side insert as a carrying device a knobbed basket or the like. on.
• the protective helmet is a motorcycle helmet, car helmet, winter sports helmet (ski, snowboard helmet), riding helmet, bicycle helmet, mountaineering helmet, working safety helmet, police helmet, fire helmet, jet fighter, military helmet or the like.
• a molded part can be joined to the shell, if at the edges of the two shells (the head-side insert and the shell-side insert), the wall thickness of the EPS Part is too small.
• This molding can support the smooth sliding of the system, but also in addition functional parts of the helmet (eg foams, belts, textile components) record.
• a chin-cam attachment point may be located near the fulcrum of the rotation system (RDP), or at least on the connection line between a chin strap attachment point (KBP) and a chin strap deployment point (KAP).
• RDP rotation system
• KBP chin strap attachment point
• KAP chin strap deployment point
• the chin strap may be mounted on a rotation line about the pivot of the rotation system. On this line, the chin strap can always remain at the same distance from the rotation pivot point. For particularly large displacements of the chin strap slips against a stop and then tightens controlled.
• This arrangement fulfills the function of a belt tensioner during impact with rotational movement.
• the protective helmet having an outer shell made of a hard material and an upside-down inner support device, which is arranged on the inside of the outer shell, and wherein the Certainlytrage driving is divided into a shell-side insert and a head-side insert, wherein the side facing away from the head side of the head-side insert at least partially has a spherical surface and the facing sides of the head-side insert and the shell-side insert at least partially correspond to each other, so that by striking on strike the shell-side liner is rotated with respect to the head-side liner, a protective helmet according to any one of claims 1 to 18 is used.
• FIG. 5 is an exploded view of a second embodiment of an inventive
• FIG. 12 is a sectional view of a third embodiment of a protective helmet according to the invention.
• FIG. 14 is a sectional view of a fourth embodiment of a protective helmet according to the invention.
• FIG. 14 is a sectional view of a fifth embodiment of a protective helmet according to the invention.
• FIG. 21 is a sectional view of a sixth embodiment of a protective helmet according to the invention.
• FIG. 22 is an exploded view of an inner support means of a protective helmet according to the invention.
• FIG. 26 is a perspective view of a protective helmet according to the invention with an inner support device according to FIGS. 22 and Fig. 27, the operation of the protective helmet of the invention according to FIG. 22 in a blow from behind.
• FIGS. 1 and 2 show sectional drawings of a conventional protective helmet. This consists of a hard outer shell 1, on the inside 2 of the inner support means 3 is arranged.
• the inner support device 3 has an inner side 4, the oval shape of which is adapted to a human head 5 (see FIG. 2).
• FIGS. 3 and 4 show sectional drawings of a first embodiment of a protective helmet 6 according to the invention.
• the shock-absorbing or shock-absorbing and comfort-bearing internal support device surrounded by the hard, outer shell 1 is subdivided into a shell-like insert 7 and a top-side insert 8 the outer side 9 of the head-side insert 8 facing away from the head 5 (see FIG. 4) at least partially has a spherical surface and the outer side 9 of the head-side insert 8 corresponds to the inner side 2 of the shell-side insert 7.
• the shell-side insert 7 and the head-side insert 8 of the Inntrage nails are preferably connected to each other so that they can move freely in all directions against each other, so that they form a movable system. It is preferably provided that after a shift, a return to the starting position. This can be done for example by a elastic layer or an elastic band can be effected. The release force of the system is always smaller than the force to return the system to the starting position.
• an intermediate layer 10 which has an inner side 11 and an outer side 12 and is preferably made of a harder material, is provided between the head-side insert 8 and the shell-side insert 7 arranged.
• the outer side 13 of the shell-side insert 7 corresponds to the inner side 2 of the outer shell 1.
• Die Intermediate layer 10 is firmly connected to the shell-side insert 7 or the head-side insert 8.
• FIGS. 6 and 7 show sectional drawings of the protective helmet 6 according to the invention according to FIG. 5.
• the shell-side insert 7 can be rotated about a pivot point 14 on the head-side insert 8.
• the head-side insert 8 together with the outer shell 1 rotates about the pivot point 14 in the direction of arrow 15 to the front.
• the head-side insert 8 together with the outer shell 1 is at a take place in the direction of arrow 16 impact on a floor 17th and thus an associated force of force in the direction of arrow 18 in the direction of arrow 15 is rotated forward.
• the head-side insert 8 together with the outer shell 1 rotates about the pivot point 14 in the direction of arrow 19 to the rear.
• FIG. 12 shows a sectional drawing of a third embodiment of a protective helmet 6 according to the invention.
• the head-side insert 8 and the shell-side insert 7 are connected to one another by means of connecting means 20.
• the connecting means 20 have predetermined breaking points 21, which are e.g. break in a stroke from the front, so that the head-side insert 8 together with the outer shell 1 about the pivot point 14 in the direction of arrow 19 rotates backwards (Fig. 13).
• FIG. 14 shows a sectional drawing of a fourth embodiment of a protective helmet 6 according to the invention.
• the head-side insert 8 has an elevation 22 which projects into the region of the shell-side insert 7.
• the elevation 22 is surrounded by a damping means 23, which is pressed together in a stroke from the front, while the head-side insert 8 together with the outer shell 1 about the pivot point 14 in the direction of arrow 19 is rotated backwards (Fig. 15).
• the damping means 23 may preferably be a foam ring which is introduced, for example, cylindrically in the upper region of the protective helmet 6.
• Fig. 16 shows a sectional view of a fifth embodiment of a fiction, invention ate protective helmet 6.
• the head-side insert 8 two elevations 22 on.
• the elevations 22 have predetermined breaking points 21, for example, break in a blow from behind, so that the head-side insert 8 together with the outer shell 1 about the pivot point 14 in the direction of arrow 15 rotates forward (Fig. 17).
• Figs. 18 and 19 show front views of a protective helmet 6 according to the invention. It is clear that the head-side insert 8 and the shell-side insert 7 have a common pivot point 14, so that e.g. in a lateral impact, the head-side insert 8 together with the outer shell 1 is rotated about the pivot point 14 in the direction of the arrow 24 (FIG. 20).
• FIG. 21 shows a sectional drawing of a sixth embodiment of a protective helmet 6 according to the invention.
• the head-side insert 8 and the shell-side insert 7 have knobbed baskets.
• the inner support means is between the head-side insert 8 and the shell-side insert 7 an intermediate layer 10, which has an inner side 1 1 and an outer side 12 and preferably made of a harder material is manufactured, arranged.
• the outer side 13 of the shell-side insert 7 corresponds to the inner side 2 of the outer shell 1.
• the inner side 12 of the intermediate layer 10 and the outer side 9 of The inner layer 11 has the inside 11 of the intermediate layer 10.
• the intermediate layer 10 has bands 25 fixed by pins 25, which preferably have a fastening means 27, and an edge 28, into which the shell-side insert 7 can be inserted.
• FIGS. 23 to 25 show detailed views of the inner support device according to FIG. 22.
• the fastening means 27 can be fixed to the holder 29 in holes 31.
• FIG. 26 shows a perspective illustration of a protective helmet according to the invention with an inner carrying device according to FIG. 22, and FIG. 27 shows the functioning of the protective helmet according to the invention according to FIG. 22 in the case of a blow from behind.

Landscapes

• Helmets And Other Head Coverings (AREA)

Priority Applications (2)

Applications Claiming Priority (4)

Publications (1)

Family

ID=44582007

Family Applications (1)

Country Status (8)

Cited By (1)

Families Citing this family (90)

Citations (8)

Family Cites Families (15)

• 2011
  • 2011-09-09 DE DE102011112790A patent/DE102011112790A1/de not_active Ceased
  • 2011-09-09 DE DE112011104130T patent/DE112011104130A5/de not_active Withdrawn
  • 2011-09-09 KR KR1020137009097A patent/KR20130082501A/ko not_active Application Discontinuation
  • 2011-09-09 US US13/199,791 patent/US20120060251A1/en not_active Abandoned
  • 2011-09-09 CN CN2011102895402A patent/CN102406262A/zh active Pending
  • 2011-09-09 ES ES11007341T patent/ES2413281T3/es active Active
  • 2011-09-09 WO PCT/DE2011/001713 patent/WO2012037927A1/de active Application Filing
  • 2011-09-09 PT PT110073418T patent/PT2428129E/pt unknown
  • 2011-09-09 EP EP11007341A patent/EP2428129B1/de active Active

Patent Citations (8)

Also Published As

Similar Documents

Legal Events