EP3256014A1 - Cover shell - Google Patents

Cover shell

Info

Publication number
EP3256014A1
EP3256014A1 EP16716558.8A EP16716558A EP3256014A1 EP 3256014 A1 EP3256014 A1 EP 3256014A1 EP 16716558 A EP16716558 A EP 16716558A EP 3256014 A1 EP3256014 A1 EP 3256014A1
Authority
EP
European Patent Office
Prior art keywords
shell
cover
adhesive
helmet
protective shell
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.)
Granted
Application number
EP16716558.8A
Other languages
German (de)
French (fr)
Other versions
EP3256014B1 (en
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.)
ABUS August Bremicker Soehne KG
Original Assignee
ABUS August Bremicker Soehne KG
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 ABUS August Bremicker Soehne KG filed Critical ABUS August Bremicker Soehne KG
Publication of EP3256014A1 publication Critical patent/EP3256014A1/en
Application granted granted Critical
Publication of EP3256014B1 publication Critical patent/EP3256014B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/003—Helmet covers

Definitions

  • the present invention relates to a cover shell for a helmet, in particular a bicycle helmet, with a helmet body and a voltage applied to an outer side of the helmet body protective shell. It also relates to such helmets with a cover shell and the use of cover shells on such helmets.
  • Helmets especially helmets for cycling, but also for motorcycling, winter sports or other activities, usually have a helmet body, which is adapted to absorb force, in particular violent shocks to prevent head injuries.
  • a helmet body may, for example, be formed from a particularly shock-absorbing hard foam, in which sometimes a stiffening structure, e.g. in the form of a grid structure, is integrated.
  • Such helmets have a relatively high wearing comfort due to their low weight.
  • openings may be provided in the helmet body to allow air circulation through the helmet to ventilate the head.
  • a protective shell may rest against the helmet body, which thus limits the helmet body to the outside.
  • the protective shell may, for example, be made of a material which comprises ABS (acrylonitrile-butadiene-styrene), PVC (polyvinyl chloride), PET (polyethylene terephthalate), in particular APET (amorphous polyethylene terephthalate) and / or a PC (polycarbonate).
  • ABS acrylonitrile-butadiene-styrene
  • PVC polyvinyl chloride
  • PET polyethylene terephthalate
  • APET amorphous polyethylene terephthalate
  • PC polycarbonate
  • the protective shell has a high impact resistance and low impact sensitivity and thus forms a first protective layer of the helmet.
  • it is suitable for distributing selective force effects over a larger area of the helmet body, so that the force effects can be better absorbed.
  • the protective shell usually forms a uniform, wind and rain impermeable surface, which is also suitable for visual design, such as by a colored and / or motifed design. If the helmet body has openings which connect the inside with the outside of the helmet, corresponding openings are provided on the protective shell as a rule, in order not to hinder the ventilation effect of the helmet openings.
  • the manufacture of such a helmet can be done for example by the known in-mold process.
  • the protective shell with the material of the helmet body such as a foam, behind injected.
  • a stable surface connection of the protective shell is achieved on the helmet body, which contributes significantly to the stability and thus safety of the helmet.
  • this fixed connection also has the disadvantage that the protective shell on the helmet body is not interchangeable without jeopardizing the integrity of the helmet.
  • openings are increasingly being worn and perceived in fashion.
  • the decoration of a helmet can therefore be an important aspect in the purchase decision. Due to the production-related and also important in terms of safety solid connection of the helmet body with the protective shell, the design option is limited in conventional helmets, however, especially since they are not interchangeable.
  • the protective shells of helmets typically can not be easily redecorated. For example, it would be conceivable in principle for helmets for children to design the protective shell so that it can be painted as desired. However, the solvents contained in sticks or other dyes could penetrate the usually thin protective shell and attack the mostly made of solvent-sensitive material constructed helmet body.
  • Essential to the invention is in each case the nature of the arrangement of the cover shell on the protective shell of the helmet.
  • the cover shell is designed, in particular by means of adhesion, to be detachably and adhesive-free, so as to be adhesively attached to the protective shell.
  • the arrangement is not adhesive, ie not using adhesive to attach the cover shell to the protective shell.
  • the cover shell can be applied to the protective shell without using adhesive, and then releasably adhere to the protective shell. In this way, the arrangement of the cover shell on the protective shell without much effort is possible and also reversible, so that the cover shell can be repeatedly adhered to the protective shell and released from it again.
  • an adhesive-free adhesive arranged protective shell behaves largely neutral and affects neither the protective shell nor the helmet body of a helmet.
  • the adhesion is based in particular on adhesion effects, as occur, for example, due to van der Waals forces or other, in particular electrostatic, interactions between two surfaces.
  • the respective surfaces in particular an inner side of the cover shell, which faces the protective shell and is intended to abut against the protective shell at least in regions, are preferably smooth, in order to create the largest possible area of direct contact between the two surfaces. len.
  • the cover shell is designed with respect to the respective protective shell in such a way that the adhesion effects, which are responsible for the adhesion, in particular due to a suitable choice of the respective material, sufficiently strong to secure the cover shell to the protective shell under normal conditions of use of the helmet , especially in strong winds to ensure.
  • the cover shell or at least one inner side of the cover shell, in particular at least one adhesive section provided for the adhesive arrangement may comprise the inner side of the cover shell, preferably polyurethane.
  • the material may be a polyurethane gel, as described, for example, in EP 1 889 798 A1 or DE 33 41 555 A1. Such a material is marketed, for example, under the trade name "Technogel".
  • the said adhesive arrangement is to be distinguished in particular from an adhesive arrangement, for which an adhesive is required.
  • the arrangement is free of adhesives comprising solvents or solvents are required for their use. Even if adhesive compounds (depending on the particular adhesive) can be reversible, the adhesive arrangement has the advantage that it can be dispensed with the provision of an additional adhesive whose chemical constituents as described above can attack the protective shell.
  • the adhesive effect of multiple-use adhesives usually decreases with the number of sticking and loosening.
  • the adhesive arrangement is advantageously based on a physical effect which is not influenced by repeated joining or detachment of the cover shell and protective shell.
  • the adhesive effect can be reactivated by simply cleaning at any time.
  • the cleaning can be carried out, for example, simply by rinsing with water or, for example, stick an adhesive tape on the surface to be cleaned and gently peel off again, so that the impurities stick to the tape and are removed with this.
  • the adhesive effect can be permanently maintained by regular cleaning.
  • a fastening of the cover shell to the protective shell is also to be distinguished, which takes place in a mechanical manner, in particular in a form-fitting manner.
  • a positive-locking arrangement may, if it is detachable, be provided in addition to the adhesive arrangement (as will be explained below), since it does not hinder the adhesive arrangement in contrast to an arrangement by means of adhesive and does not endanger the reversibility and repeatability of the arrangement ,
  • a cover shell which can be arranged according to need and in particular without auxiliary or connecting means adhering to the protective shell of a helmet or released therefrom, a quick and easy customization of a helmet to different requirements is possible.
  • the color, a lettering or other graphic design, the surface structure on the outside of the helmet and in particular its aerodynamics, can be changed, openings can be closed against rain and wind and additional functions, such as reflector sections (see below), be attached.
  • the cover shell preferably has one or more adhesive sections on an inner side facing the protective shell of the protective shell on the inside. by means of which the cover shell on the protective shell is detachable and adhesive-free adhesive can be arranged. These adhesive sections may extend over the entire inner side of the cover shell and thus form a single uniform adhesive section. However, the adhesive sections can also be distributed to respectively distinct regions of the inner side, which are particularly suitable for a stable arrangement of the cover shell on the protective shell.
  • the adhesive portions may be characterized in particular in comparison to other portions of the inside of the cover shell in that they are designed specifically for a particularly strong adhesive effect.
  • the adhesive portions may in particular be particularly smooth (ie have a particularly low surface roughness), a material particularly suitable for adhesion effects, for example polyurethane, in particular a polyurethane gel, and / or have elasticity suitable for allowing the adhesive portion Shape to adapt to a corresponding mating portion of the protective shell to achieve the closest possible and large-area contact with the mating section.
  • the adhesive portions may be formed as an integral part of the cover shell.
  • the adhesive portions may also be formed separately from the cover shell.
  • these separately formed adhesive sections are preferably firmly connected to the cover shell insofar as this connection does not run the risk of being fastened when the cover shell is detached from the protective shell.
  • the connecting forces acting between a respective adhesive portion and the cover shell are greater than the adhesive forces acting between the adhesive portion and the protective shell.
  • the connection of the adhesive sections with the cover shell preferably not reversible, so not designed as a normal use of the helmet detachable connection.
  • the adhesive portions may be firmly connected to the cover shell, for example by means of adhesive.
  • the provision of adhesive between a respective adhesive portion and the cover shell does not preclude an adhesive-free adhering arrangement of the cover shell on the protective shell, since the adhesive arrangement of the cover shell between their adhesive sections and the protective shell takes place and thus is also free of adhesive when the adhesive sections with adhesive the cover shell are firmly connected.
  • the adhesive sections have one or more respective adhesive surfaces provided for immediate contact with the protective shell, in particular on an outer surface of the protective shell. Especially these adhesive surfaces can then come into contact with mating surfaces of the protective shell and interact with them in an adhesive manner.
  • the adhesive portion itself is formed flat and has only one adhesive surface, the adhesive surface may substantially correspond to the entire surface of the adhesive portion facing the protective shell.
  • the adhesive portion may also have a plurality of separate adhesive surfaces.
  • only the adhesive surfaces of the adhesive portion include a particularly suitable for the adhesion material, a saving of this material and thus a more cost-effective production can be achieved by a distributed arrangement of multiple adhesive surfaces on a respective adhesive portion, without significantly affecting the desired adhesive effect.
  • the adhesive sections comprise a self-adhesive material, in particular a self-adhesive polymer, preferably polyurethane, preferably polyurethane gel, at least in the region of respective adhesive surfaces.
  • a self-adhesive polymer preferably polyurethane, preferably polyurethane gel
  • the adhesive effect of a respective adhesive section or a respective adhesive surface does not result from a particular coating or treatment, but simply from the material itself used.
  • the releasable and adhesive-free adhesive effect of the material can thereby be particularly increased that it, for example, to form an adhesive surface, particularly smooth, ie with a particularly low surface roughness, is formed, so that a particularly large uninterrupted contact surface can be formed to the protective shell.
  • the (remaining) cover shell may have a rough surface even on its inner side.
  • a cover shell which has a too large surface roughness for the desired adhesion
  • a cover shell which is painted, for example for optical design, sealing or reinforcement, with a material that is not smooth, but eg a matte Surface forms.
  • the protective shell, on which the cover shell is adhesively disposed need not itself likewise be formed from a self-adhesive material, but preferably also has a smooth surface, at least on one of the cover shell facing the outside.
  • one or more adhesion promoter elements can be fastened or fastened to at least partially form smooth sections on the protective shell and thus the adhesive effect of the adhesive To strengthen the arrangement of the cover shell on the protective shell.
  • adhesion promoter elements can be designed, for example, as flat elements, in particular strips, with a smooth surface and can be fastened to the protective shell, eg by adhesive bonding.
  • Adhesive attachment of the adhesion promoter elements is not precluded by an adhesive-free adhesive arrangement of the cover shell on the protective shell, since the adhesive arrangement in this embodiment takes place between the cover shell and the adhesion promoter elements and thus also is then adhesive-free, if the adhesion promoter elements are attached by means of adhesive to the protective shell.
  • Said self-adhesive material for the adhesive portions of the cover shell can be selected in particular with regard to a particularly reliable adhesive effect in conjunction with a protective shell of the materials mentioned above.
  • the cover shell has one or more reflector sections on an outer side facing away from the protective shell when disposed on the protective shell. This outside is aligned just opposite to the aforementioned inside of the cover shell and therefore facing outwards when wearing the respective helmet and visible.
  • reflector sections by which the visibility of the helmet in the dark can be improved. While it is not or only with effort possible to provide circumferential or large reflectors on the protective shell of the helmet due to the production of a helmet in the in-mold method, such reflectors or other reflector sections can be easily attached to the cover shell.
  • the helmet can thus be functionally supplemented as required, for example by placing a cover shell with reflector sections in the dark, but no or another cover shell in the case of brightness.
  • the cover shell may comprise one or more of the materials mentioned at the outset for the protective shell, in particular the same material as the protective shell.
  • the cover shell comprises an at least substantially solvent-resistant and / or solvent-impermeable material.
  • the material of the cover shell can be selected in particular with regard to requirements that can not be met by the material of the protective shell, not easily or not sufficiently.
  • the material of the cover shell can be solvent-impermeable and / or solvent-resistant and thus make it possible, for example, to paint the cover shell for its graphic design by means of solvent-containing paints.
  • the material need only be solvent-resistant and / or solvent-impermeable to the extent that penetration of solvent to the protective shell or at least to the helmet body of a respective helmet during normal use can be ruled out.
  • the cover shell in particular in a peripheral edge region of the cover shell, has one or more undercuts in order to be able to be positively connected to the helmet in addition to the adhesive arrangement on a respective protective shell of a helmet.
  • the positive connection with the helmet as well as the adhesive arrangement of the cover shell on the protective shell is solvable, so reversible.
  • Such undercuts can thus serve to increase the security of the arrangement of the cover shell on the protective shell. In principle, however, they are only provided in addition to the adhesive arrangement and are not absolutely necessary. Especially in special circumstances, for example in strong winds, such additional protection may be useful.
  • undercuts need not necessarily be designed for interaction with the protective shell of the helmet, but may also be designed for cooperation with the helmet body or any other part of the helmet.
  • the invention also encompasses a helmet, in particular bicycle helmet, with a helmet body and a protective shell resting against an outer side of the helmet body and a cover shell and / or at least one cover piece, wherein the cover shell and / or the at least one, in particular planar, cover piece can be detached from the protective shell and is arranged adhesive-free adhesion.
  • the cover shell can be designed in particular according to one of the embodiments described above.
  • the protective shell and the cover shell and / or the at least one cover piece of the helmet then together form an outer shell of the helmet, wherein the cover shell and / or the at least one cover piece, in particular in contrast to the protective shell, due to the merely adhesive and in particular detachable arrangement on the rest Helmet is interchangeable.
  • the use of such a cover shell and / or at least one such cover piece on a helmet otherwise having only a protective shell as outer shell makes it possible by selectively sticking a respective cover shell and / or at least one respective cover piece the helmet as needed in its function and its outer To modify appearance.
  • the helmet with attached cover shell and / or at least one attached cover piece can have improved aerodynamics, provide improved protection against rain and / or have an optionally modified external appearance.
  • the protective shell is preferably at least at those portions to which the cover shell and / or the at least one cover piece adheres or which are provided and / or formed for such adhesion smooth, ie with low surface roughness, formed.
  • the protective shell of the helmet on one or more openings, which may in particular also extend through the helmet body, wherein the cover shell and / or the at least one cover piece is formed such that the cover shell and / or the at least one cover piece when arranged on the protective shell covers at least a portion of the openings.
  • the covering comprises both a complete closure of the openings and only a reduction of the opening cross section in the region of the outside of the helmet by the at least partially fitting cover shell at the respective opening of the protective shell and / or by the at least one at the respective opening of the protective shell at least partially fitting cover piece.
  • openings can in particular also be covered in such a way that they are virtually closed to one side, so that air can still flow through the opening to another, in particular opposite, side.
  • the cover shell and / or the at least one cover piece may also have openings, at least some of which may correspond with respect to their position with respective openings of the protective shell. However, the cover shell may also have no openings or openings which do not correspond to the openings of the protective shell, so that all openings of the protective shell are covered when the cover shell and / or the at least one cover piece are arranged on the protective shell.
  • the cover shell for example to save material, may be structured such that it covers openings of the protective shell, but in the others Has areas recesses. Basically, although the cover shell in their dimensions largely corresponds to those of the protective shell. However, the cover shell can also have greatly different dimensions and in particular be designed substantially smaller than the protective shell.
  • cover pieces can be provided which can be detachably and adhesively attached to various sections of the protective shell, in particular to openings of the protective shell.
  • the cover pieces can be designed for a non-specific arrangement relative to their respective position on the protective shell.
  • each of the cover pieces for adhesive arrangement may be formed on a respective specific portion of the protective shell, in particular by the respective cover piece suitable for a respective section of the
  • Protective shell is molded.
  • the cover shell and / or the at least one cover piece comprises a material which is more solvent-resistant and / or solvent-impermeable than a material of the protective shell, in particular as the material from which the protective shell is mainly formed.
  • the cover shell arranged on the protective shell and / or the at least one cover piece arranged on the protective shell can protect the protective shell from solvents which are applied to the cover shell and / or the at least one cover piece, for example in conjunction with paints, to the cover shell and / or to make the at least one cover piece graphically.
  • the invention further comprises a modular system which comprises a helmet, in particular a bicycle helmet, with a respective helmet body and a respective protective shell resting against an outer side of the helmet body and at least one cover shell and / or at least one, in particular flat, covering piece.
  • the cover shell and / or the at least one cover piece can thereby be formed according to at least one of the aforementioned embodiments and is in particular adapted to be selectively detachably attached to the protective shell of the helmet and adhesive-free.
  • one or more cover shells and / or one or more cover pieces are provided for a respective helmet, which can be arranged on the respective helmet detachable and adhesive-free adhesive.
  • cover shells and / or cover pieces can be optionally combined with the same helmet.
  • respective cover shells and / or respective cover pieces of the system can be suitably adapted to a respective helmet of the system.
  • This adaptation may consist in particular of the shape and a respective distribution of openings in the helmet, in particular in the protective shell of the helmet.
  • the respective cover shells and / or respective cover pieces may alternatively or additionally also be adapted to the material of the protective shell of a respective helmet of the system with regard to their material for a preferably stably adhering arrangement.
  • a user of a helmet of the system to use the helmet according to its intended purpose, such as for improved aerodynamics in a time trial or for protection against rain, and / or depending on fashionable requirements, such as for color adjustment to the respective worn clothing or for the application of markings, badges, advertising logos and the like, to be provided with a selected from a variety of possible cover shells of the system cover shell and / or with at least one of a plurality of possible cover pieces of the system selected cover piece.
  • different cover shells and / or cover pieces which may differ greatly in their function and / or appearance, provided for adhering to the same helmet.
  • the invention also includes the use of cover shells and / or at least one, in particular flat, cover piece, in particular according to a respective embodiment of the cover shells and cover pieces described above, for detachable and adhesive-free adhering arrangement of helmets, in particular bicycle helmets.
  • cover pieces can correspond in their function and their basic design to the cover shells described, but they have comparatively smaller dimensions and do not completely cover the respective helmet or the protective shell of a respective helmet.
  • the cover pieces can have any shape suitable for covering a specific section of a respective helmet, in particular a protective shell of a respective helmet.
  • the cover pieces may be substantially round or oval, polygonal with or without rounded corners, or designed as strips.
  • the adhesive arrangement of the cover shells and / or cover pieces is at least also at openings of the helmet, in particular to the cover, as described above.
  • Fig. 1 shows a schematic side view of a
  • Bicycle helmet with a cover shell according to an exemplary embodiment of the invention.
  • Fig. 2 shows another embodiment of the cover shell with separately formed adhesive portions.
  • Fig. 3 shows a further embodiment of the cover shell with too
  • Openings of the helmet corresponding openings.
  • a cover shell 1 1 is shown, which is arranged releasably and adhesive-free adhering to a helmet 13.
  • the helmet 13 has a helmet body 15 made of shock-absorbing rigid foam, which is bounded by a convexly curved thin protective shell 17 towards a side facing away from the head (not shown) when the helmet 13 is worn.
  • the cover shell 1 1 lies flat against the protective shell 17 and covers it almost completely.
  • the contour of the protective shell 17 covered by the cover shell 1 1 is shown by dashed lines in the figures.
  • substantially the entire protective shell 17 facing the inner side of the cover shell 1 1 forms a uniform adhesive portion 19, with which the cover shell 1 1 adheres to the protective shell 17 by means of adhesion interactions.
  • FIG. 2 of the cover shell 1 1 separate adhesive portions 19 ', four of which along an apex of the helmet arranged adhesive portions 19' are shown in cross section.
  • the adhesive portions 19 ' are formed as adhesive pads and firmly connected to the cover shell 1 1.
  • the adhesive action of the adhesive portions 19 ' is based on the fact that the adhesive portions 19' comprise as a material suitably designed in view of particularly good adhesion properties polyurethane gel. While between the adhesive portions 19 'and the cover shell 1 1 adhesive for the solid irreversible connection of the adhesive portions 19' with the cover shell 1 1 is provided (not shown), the area between the adhesive portions 19 'and the protective shell 17 is free of adhesive.
  • the cover shell 1 1 openings 21, two of which are arranged at an apex of the helmet openings 21 are shown.
  • the openings 21 cover corresponding openings 23, which are provided in the protective shell 17 of the helmet 13, and extend as ventilation ducts 25 through the helmet body 15 to an inner side of the helmet 13 facing the head.
  • These openings 23 and ventilation channels 25 are shown only schematically in cross section as a dotted line.
  • the openings 21 in the cover shell 1 1 are formed in the region of the openings 23 of the protective shell 17, the openings 23 of the protective shell 17 are at least partially covered by the cover shell 1 1 in such a way that the openings 21 to the direction of travel towards (arrow) are substantially closed, in the opposite direction, however, open.
  • 13 different cover shells 11 can optionally be used for the adhesive arrangement on the same or similar helmets.
  • the various cover shells 1 1 together with one or more respective helmets 13 form a modular system which offers a great deal of flexibility in the respective adaptation of a helmet to different requirements.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

A cover shell for a helmet, in particular a bicycle helmet that has a helmet base and a protective shell resting against the outer face of the helmet base, is formed on the protective shell for a detachable and adhering arrangement without using adhesives.

Description

Deckschale  cover shell
Die vorliegende Erfindung betrifft eine Deckschale für einen Helm, insbesondere einen Fahrradhelm, mit einem Helmkörper und einer an einer Außenseite des Helmkörpers anliegenden Schutzschale. Sie betrifft ferner derartige Helme mit einer Deckschale sowie die Verwendung von Deckschalen an derartigen Helmen. Helme, insbesondere Helme für das Fahrradfahren, aber auch solche für Motorradfahren, Wintersport oder andere Betätigungen, weisen in der Regel einen Helmkörper auf, der dazu ausgebildet ist, Krafteinwirkungen, insbesondere heftige Stöße zu absorbieren, um Kopfverletzungen zu verhindern. Ein solcher Helmkörper kann beispielsweise aus einem insbesondere stoßabsorbierenden Hart- schäum gebildet sein, in den bisweilen eine Versteifungsstruktur, z.B. in Form einer Gitterstruktur, integriert ist. Derartige Helme weisen aufgrund ihres geringen Gewichts einen relativ hohen Tragekomfort auf. Des Weiteren können in dem Helmkörper Öffnungen vorgesehen sein, um eine Luftzirkulation durch den Helm zur Belüftung des Kopfes zu ermöglichen. The present invention relates to a cover shell for a helmet, in particular a bicycle helmet, with a helmet body and a voltage applied to an outer side of the helmet body protective shell. It also relates to such helmets with a cover shell and the use of cover shells on such helmets. Helmets, especially helmets for cycling, but also for motorcycling, winter sports or other activities, usually have a helmet body, which is adapted to absorb force, in particular violent shocks to prevent head injuries. Such a helmet body may, for example, be formed from a particularly shock-absorbing hard foam, in which sometimes a stiffening structure, e.g. in the form of a grid structure, is integrated. Such helmets have a relatively high wearing comfort due to their low weight. Furthermore, openings may be provided in the helmet body to allow air circulation through the helmet to ventilate the head.
An einer Außenseite des Helmkörpers, die einer dem Kopf des jeweiligen Helmträgers zugewandten bzw. an dem Kopf anliegenden Innenseite des Helmkörpers entgegengesetzt ist, kann an dem Helmkörper eine Schutzschale anliegen, die den Helmkörper somit nach außen begrenzt. Die Schutzschale kann beispielswei- se aus einem Material gefertigt sein, welches ABS (Acrylnitril-Butadien-Styrol), PVC (Polyvinylchlorid), PET (Polyethylenterephthalat), insbesondere APET (amorphes Polyethylenterephthalat) und/oder ein PC (Polycarbonat) umfasst. Eine derartige Schutzschale dient insbesondere dazu, einen stabilen und festen Ab- schluss des Helmkörpers nach außen zu bilden. Insbesondere weist die Schutzschale eine hohe Schlagzähigkeit und geringe Stoßempfindlichkeit auf und bildet somit eine erste Schutzschicht des Helms. Zudem ist sie geeignet, punktuelle Krafteinwirkungen auf einen größeren Bereich des Helmkörpers zu verteilen, so dass die Krafteinwirkungen besser absorbiert werden können. Schließlich bildet die Schutzschale in der Regel eine einheitliche, wind- und regenundurchlässige Oberfläche, die ferner zur optischen Gestaltung, etwa durch eine farbige und/oder mit Motiven versehene Ausführung, geeignet ist. Sofern der Helmkörper Öffnungen aufweist, welche die Innenseite mit der Außenseite des Helmes verbinden, sind an der Schutzschale in der Regel entsprechende Öffnungen vorgesehen, um die Belüftungswirkung der Helmöffnungen nicht zu behindern. Die Fertigung eines solchen Helmes kann beispielsweise nach dem bekannte In- Mould-Verfahren erfolgen. Bei dieser Art des Spritzgießens wird die Schutzschale mit dem Material des Helmkörpers, z.B. einem Hartschaum, hinterspritzt. Auf diese Weise wird eine stabile flächige Anbindung der Schutzschale an den Helmkörper erreicht, die zur Stabilität und somit Sicherheit des Helmes wesentlich beiträgt. Diese fest Anbindung hat aber zugleich den Nachteil, dass die Schutzschale an dem Helmkörper nicht austauschbar ist, ohne die Integrität des Helmes zu gefährden. On an outer side of the helmet body, which is opposite to the head of the respective helmet wearer or adjacent to the head inside of the helmet body, a protective shell may rest against the helmet body, which thus limits the helmet body to the outside. The protective shell may, for example, be made of a material which comprises ABS (acrylonitrile-butadiene-styrene), PVC (polyvinyl chloride), PET (polyethylene terephthalate), in particular APET (amorphous polyethylene terephthalate) and / or a PC (polycarbonate). Such a protective shell serves, in particular, to provide a stable and firm abatement. conclusion of the helmet body to form the outside. In particular, the protective shell has a high impact resistance and low impact sensitivity and thus forms a first protective layer of the helmet. In addition, it is suitable for distributing selective force effects over a larger area of the helmet body, so that the force effects can be better absorbed. Finally, the protective shell usually forms a uniform, wind and rain impermeable surface, which is also suitable for visual design, such as by a colored and / or motifed design. If the helmet body has openings which connect the inside with the outside of the helmet, corresponding openings are provided on the protective shell as a rule, in order not to hinder the ventilation effect of the helmet openings. The manufacture of such a helmet can be done for example by the known in-mold process. In this type of injection molding, the protective shell with the material of the helmet body, such as a foam, behind injected. In this way, a stable surface connection of the protective shell is achieved on the helmet body, which contributes significantly to the stability and thus safety of the helmet. However, this fixed connection also has the disadvantage that the protective shell on the helmet body is not interchangeable without jeopardizing the integrity of the helmet.
Bei Helmen, die, etwa zur Belüftung, Öffnungen aufweisen, welche die Außenseite mit der Innenseite des Helmes verbinden, kann es unter Umständen zweckmäßig sein, diese Öffnungen, zumindest vorübergehend, verschließen zu können. Dies kann beispielsweise bei Regen der Fall sein, wenn ein Träger des Helmes mehr Wert auf einen trockenen als auf einen gut belüfteten Kopf legt. Es können aber auch sportliche Aspekte für ein Verschließen der Öffnungen sprechen. Wenn etwa bei einem Zeitfahren oder aus anderem Anlass die aerodynamischen Eigenschaf- ten des Helms optimiert werden soll, kann das Verschließen der Öffnungen hierzu einen Beitrag leisten. Dabei müssen für die genannten Beispiele und allgemein jeweils nicht alle vorhandenen Öffnungen verschlossen werden. Beispielsweise ist es denkbar, lediglich diejenigen Öffnungen, die besonders anfällig für eindringen- den Regen oder für eine Störung der Aerodynamik sind, zu verschließen, andere aber zur Aufrechterhaltung einer (reduzierten) Belüftungswirkung offen zu lassen. Insbesondere können Öffnungen auch lediglich teilweise, beispielsweise lediglich zur Fahrtrichtung hin, verschlossen werden. Helme werden zunehmend auch in modischer Hinsicht getragen und wahrgenommen. Das Dekor eines Helmes kann daher mitunter ein wichtiger Aspekt bei der Kaufentscheidung sein. Aufgrund der fertigungsbedingten und auch unter Sicherheitsaspekten wichtigen festen Verbindung des Helmkörpers mit der Schutzschale ist die Gestaltungsmöglichkeit bei herkömmlichen Helmen jedoch eingeschränkt, insbesondere da sie nicht austauschbar sind. Zudem können die Schutzschalen der Helme typischerweise nicht einfach umdekoriert werden. So wäre es beispielsweise gerade bei Helmen für Kinder zwar grundsätzlich denkbar, die Schutzschale so auszubilden, dass sie nach Wunsch bemalbar ist. Allerdings könnten die in Stiften oder sonstigen Farbstoffen enthaltenen Lösungsmittel die in der Regel dünne Schutzschale durchdringen und den zumeist aus lösungsmittelempfindlichem Material aufgebauten Helmkörper angreifen. For helmets, which, for example, for ventilation, have openings which connect the outside with the inside of the helmet, it may be appropriate to be able to close these openings, at least temporarily. This may be the case, for example, in the case of rain when a wearer of the helmet attaches more importance to a dry than to a well-ventilated head. But it can also speak sporting aspects for closing the openings. If, for example, a time trial or any other occasion, the aerodynamic To be optimized th of the helmet, the closing of the openings can make a contribution to this. It must be closed for the examples mentioned and generally not all existing openings. For example, it is conceivable to close only those openings which are particularly susceptible to penetrating rain or to a disturbance of the aerodynamics, but to leave others open in order to maintain a (reduced) ventilation effect. In particular, openings can also only partially, for example, only towards the direction of travel, are closed. Helmets are increasingly being worn and perceived in fashion. The decoration of a helmet can therefore be an important aspect in the purchase decision. Due to the production-related and also important in terms of safety solid connection of the helmet body with the protective shell, the design option is limited in conventional helmets, however, especially since they are not interchangeable. In addition, the protective shells of helmets typically can not be easily redecorated. For example, it would be conceivable in principle for helmets for children to design the protective shell so that it can be painted as desired. However, the solvents contained in sticks or other dyes could penetrate the usually thin protective shell and attack the mostly made of solvent-sensitive material constructed helmet body.
Es ist daher eine Aufgabe der Erfindung, eine Möglichkeit zu schaffen, einen Helm individuell an jeweilige Anforderungen, insbesondere sportlicher und witterungs- bedingter Art, anpassbar zu machen. It is therefore an object of the invention to provide a way to make a helmet individually to respective requirements, especially sporty and weather-related nature adaptable.
Die Aufgabe wird durch eine Deckschale mit den Merkmalen des Anspruchs 1 , einen Helm mit einer derartigen Deckschale, ein modulares System umfassend einen Helm und derartige Deckschalen sowie die Verwendung derartiger Deck- schalen an einem Helm gelöst. Wesentlich für die Erfindung ist dabei jeweils die Art der Anordnung der Deckschale an der Schutzschale des Helms. Die Deckschale ist nämlich dazu ausgebildet, insbesondere mittels Adhäsion, lösbar und klebstofffrei haftend an der Schutz- schale angeordnet zu werden. Insbesondere erfolgt die Anordnung folglich nicht klebend, d.h. nicht unter Verwendung von Klebstoff, um die Deckschale an der Schutzschale zu befestigen. Vielmehr kann die Deckschale, ohne hierzu Klebstoff zu verwenden, an die Schutzschale angelegt werden und dann lösbar an der Schutzschale haften. Auf diese Weise ist die Anordnung der Deckschale an der Schutzschale ohne größeren Aufwand möglich und zudem reversibel, so dass die Deckschale immer wieder an die Schutzschale haftend angeordnet und wieder von ihr gelöst werden kann. The object is achieved by a cover shell with the features of claim 1, a helmet with such a cover shell, a modular system comprising a helmet and such cover shells and the use of such cover shells on a helmet. Essential to the invention is in each case the nature of the arrangement of the cover shell on the protective shell of the helmet. In fact, the cover shell is designed, in particular by means of adhesion, to be detachably and adhesive-free, so as to be adhesively attached to the protective shell. In particular, therefore, the arrangement is not adhesive, ie not using adhesive to attach the cover shell to the protective shell. Rather, the cover shell can be applied to the protective shell without using adhesive, and then releasably adhere to the protective shell. In this way, the arrangement of the cover shell on the protective shell without much effort is possible and also reversible, so that the cover shell can be repeatedly adhered to the protective shell and released from it again.
Würden Klebstoffe für die Anordnung der Deckschale an der Schutzschale ver- wendet, könnten chemische Bestandteile der Klebstoffe, wie etwa die in Klebstoffen enthaltenen Lösungsmittel, die Schutzschale angreifen und deren technische Eigenschaften negativ beeinflussen. Beispielsweise können sie die Schutzschale spröde und brüchig machen oder auf andere Weise schädigen. Wenn die Bestandteile durch die Schutzschale dringen, etwa aufgrund von Diffusion, können sie ferner den Helmkörper angreifen. Dagegen verhält sich eine klebstofffrei haftend angeordnete Schutzschale weitgehend neutral und beeinflusst weder die Schutzschale noch den Helmkörper eines Helmes. If adhesives were used for the arrangement of the cover shell on the protective shell, chemical constituents of the adhesives, such as the solvents contained in adhesives, could attack the protective shell and adversely affect its technical properties. For example, they can make the protective shell brittle and fragile or otherwise damaging. Further, as the components penetrate through the protective shell due to diffusion, they may attack the helmet body. In contrast, an adhesive-free adhesive arranged protective shell behaves largely neutral and affects neither the protective shell nor the helmet body of a helmet.
Dabei beruht die Haftung insbesondere auf Adhäsionseffekten, wie sie beispiels- weise aufgrund von Van-der-Waals-Kräften oder sonstigen, insbesondere elektrostatischen, Wechselwirkungen zwischen zwei Oberflächen auftreten. Hierzu sind die jeweiligen Oberflächen, insbesondere eine Innenseite der Deckschale, die der Schutzschale zugewandt ist und zum zumindest bereichsweise Anliegen an der Schutzschale vorgesehen ist, vorzugsweise glatt ausgebildet, um eine möglichst große Fläche unmittelbaren Kontakts zwischen den beiden Oberflächen zu erzie- len. Die Deckschale ist in Bezug auf die jeweilige Schutzschale dabei derart ausgebildet, das die Adhäsionseffekte, welche für die Haftung ursächlich sind, insbesondere aufgrund geeigneter Wahl des jeweiligen Materials, ausreichend stark sind, um einen sicheren Halt der Deckschale an der Schutzschale unter normalen Nutzungsbedingungen des Helms, insbesondere auch bei starkem Wind, zu gewährleisten. Insbesondere ist dadurch ein Lösen der Deckschale von der Schutzschale aufgrund bloßer Erdanziehung ausgeschlossen. Als Material mit guten Adhäsionseigenschaften kann die Deckschale oder zumindest eine Innenseite der Deckschale, insbesondere zumindest ein für die haftende Anordnung vorgesehe- ner Haftabschnitt der Innenseite der Deckschale, vorzugsweise Polyurethan umfassen. Insbesondere kann es sich bei dem Material um ein Polyurethangel handeln, wie es beispielsweise in EP 1 889 798 A1 oder DE 33 41 555 A1 beschrieben ist. Ein derartiges Material wird beispielsweise unter der Markenbezeichnung "Technogel" vertrieben. The adhesion is based in particular on adhesion effects, as occur, for example, due to van der Waals forces or other, in particular electrostatic, interactions between two surfaces. For this purpose, the respective surfaces, in particular an inner side of the cover shell, which faces the protective shell and is intended to abut against the protective shell at least in regions, are preferably smooth, in order to create the largest possible area of direct contact between the two surfaces. len. The cover shell is designed with respect to the respective protective shell in such a way that the adhesion effects, which are responsible for the adhesion, in particular due to a suitable choice of the respective material, sufficiently strong to secure the cover shell to the protective shell under normal conditions of use of the helmet , especially in strong winds to ensure. In particular, thereby a release of the cover shell is excluded from the protective shell due to mere gravitational attraction. As a material with good adhesion properties, the cover shell or at least one inner side of the cover shell, in particular at least one adhesive section provided for the adhesive arrangement, may comprise the inner side of the cover shell, preferably polyurethane. In particular, the material may be a polyurethane gel, as described, for example, in EP 1 889 798 A1 or DE 33 41 555 A1. Such a material is marketed, for example, under the trade name "Technogel".
Die genannte haftende Anordnung ist dabei insbesondere von einer klebenden Anordnung zu unterscheiden, für die ein Klebstoff erforderlich ist. Insbesondere erfolgt die Anordnung frei von Klebstoffen, die Lösungsmittel umfassen oder zu deren Verwendung Lösungsmittel erforderlich sind. Selbst wenn auch Klebstoff- Verbindungen (abhängig vom jeweiligen Klebstoff) reversibel sein können, bietet die haftende Anordnung demgegenüber den Vorteil, dass auf das Vorsehen eines zusätzlichen Klebstoffs verzichtet werden kann, dessen chemische Bestandteile wie vorstehend erläutert die Schutzschale angreifen können. Darüber hinaus lässt die Klebewirkung mehrmals verwendbarer Klebstoffe in der Regel mit der Zahl des Klebens und Lösens nach. Die haftende Anordnung beruht dagegen vorteilhafterweise auf einem physikalischen Effekt, der durch wiederholtes Verbinden bzw. Lösen von Deckschale und Schutzschale nicht beeinflusst wird. Für die Haftung ist es dabei gerade wichtig, dass zwischen der Deckschale und der Schutzschale nicht nur kein Klebstoff, sondern auch sonst nichts vorhanden ist, insbesondere keine Verschmutzungen. Sollte die Haftwirkung aufgrund von unvermeidlichen Verschnnutzungen aber reduziert sein, kann sie durch einfaches Reinigen jederzeit reaktiviert werden. Das Reinigen kann dabei beispielsweise ganz einfach durch Spülen mit Wasser erfolgen oder etwa darin bestehen, ein Klebeband auf die zu reinigende Fläche aufzukleben und vorsichtig wieder abzuziehen, so dass die Verunreinigungen an dem Klebeband kleben und mit diesem entfernt werden. So kann die Haftwirkung im Unterschied zu der Klebewirkung eines Klebstoffs durch regelmäßige Reinigung dauerhaft aufrechterhalten werden. The said adhesive arrangement is to be distinguished in particular from an adhesive arrangement, for which an adhesive is required. In particular, the arrangement is free of adhesives comprising solvents or solvents are required for their use. Even if adhesive compounds (depending on the particular adhesive) can be reversible, the adhesive arrangement has the advantage that it can be dispensed with the provision of an additional adhesive whose chemical constituents as described above can attack the protective shell. In addition, the adhesive effect of multiple-use adhesives usually decreases with the number of sticking and loosening. By contrast, the adhesive arrangement is advantageously based on a physical effect which is not influenced by repeated joining or detachment of the cover shell and protective shell. For the adhesion, it is just important that between the cover shell and the protective shell not only no adhesive, but also nothing else is present, especially no dirt. Should the adhesive effect due to unavoidable Schnnutzungen but be reduced, it can be reactivated by simply cleaning at any time. The cleaning can be carried out, for example, simply by rinsing with water or, for example, stick an adhesive tape on the surface to be cleaned and gently peel off again, so that the impurities stick to the tape and are removed with this. Thus, in contrast to the adhesive effect of an adhesive, the adhesive effect can be permanently maintained by regular cleaning.
Von der genannten haftenden Anordnung ist zudem eine Befestigung der Deck- schale an der Schutzschale zu unterscheiden, die auf mechanische Weise, insbesondere formschlüssig erfolgt. Eine derartige formschlüssige Anordnung kann zwar, sofern sie lösbar ist, zusätzlich zu der haftenden Anordnung vorgesehen sein (wie unten noch erläutert wird), da sie im Gegensatz zu einer Anordnung mittels Klebstoff die haftende Anordnung nicht behindert und die Reversibilität und Wiederholbarkeit der Anordnung nicht gefährdet. Sie ist aber im Rahmen der Erfindung für eine sichere Anordnung der Deckschale an der Schutzschale nicht erforderlich und höchstens ergänzend zur haftenden Anordnung vorgesehen. Of the above-mentioned adhesive arrangement, a fastening of the cover shell to the protective shell is also to be distinguished, which takes place in a mechanical manner, in particular in a form-fitting manner. Although such a positive-locking arrangement may, if it is detachable, be provided in addition to the adhesive arrangement (as will be explained below), since it does not hinder the adhesive arrangement in contrast to an arrangement by means of adhesive and does not endanger the reversibility and repeatability of the arrangement , However, it is not required in the context of the invention for a secure arrangement of the cover shell on the protective shell and provided at most complementary to the adhesive arrangement.
Mittels einer solchen Deckschale, die nach Bedarf und insbesondere ohne Hilfs- oder Verbindungsmittel an die Schutzschale eines Helmes haftend angeordnet bzw. wieder davon gelöst werden kann, wird ein schnelles und einfaches individuelles Anpassen eines Helmes an unterschiedliche Anforderungen ermöglicht. Beispielsweise können die Farbe, eine Beschriftung oder sonstige graphische Gestaltung, die Oberflächenstruktur an der Außenseite des Helmes und insbeson- dere dessen Aerodynamik, geändert werden, können Öffnungen gegen Regen und Wind verschlossen werden und ergänzende Funktionen, etwa Reflektorabschnitte (vgl. weiter unten), angebracht werden. By means of such a cover shell, which can be arranged according to need and in particular without auxiliary or connecting means adhering to the protective shell of a helmet or released therefrom, a quick and easy customization of a helmet to different requirements is possible. For example, the color, a lettering or other graphic design, the surface structure on the outside of the helmet and in particular its aerodynamics, can be changed, openings can be closed against rain and wind and additional functions, such as reflector sections (see below), be attached.
Vorzugsweise weist die Deckschale an einer bei Anordnung an der Schutzschale der Schutzschale zugewandten Innenseite einen oder mehrere Haftabschnitte auf, mittels derer die Deckschale an der Schutzschale lösbar und klebstofffrei haftend anordenbar ist. Diese Haftabschnitte können sich dabei über die gesamte genannte Innenseite der Deckschale erstrecken und somit einen einzigen einheitlichen Haftabschnitt bilden. Die Haftabschnitte können aber auch auf jeweils distinkte Bereiche der Innenseite verteilt sein, die insbesondere für eine stabile Anordnung der Deckschale an der Schutzschale besonders geeignet sind. Die Haftabschnitte können gegenüber übrigen Abschnitten der Innenseite der Deckschale insbesondere dadurch gekennzeichnet sein, dass sie spezifisch für eine besonders starke Haftwirkung ausgebildet sind. Dazu können die Haftabschnitte insbesondere be- sonders glatt sein (d.h. eine besonders geringe Oberflächenrauhigkeit aufweisen), ein für Adhäsionseffekte besonders geeignetes Material, wie beispielsweise Polyurethan, insbesondere ein Polyurethangel, umfassen und/oder eine dazu geeignete Elastizität aufweisen, dem Haftabschnitt zu ermöglichen, seine Form an einen entsprechenden Gegenabschnitt der Schutzschale anzupassen, um einen möglichst engen und großflächigen Kontakt zu dem Gegenabschnitt zu erzielen. The cover shell preferably has one or more adhesive sections on an inner side facing the protective shell of the protective shell on the inside. by means of which the cover shell on the protective shell is detachable and adhesive-free adhesive can be arranged. These adhesive sections may extend over the entire inner side of the cover shell and thus form a single uniform adhesive section. However, the adhesive sections can also be distributed to respectively distinct regions of the inner side, which are particularly suitable for a stable arrangement of the cover shell on the protective shell. The adhesive portions may be characterized in particular in comparison to other portions of the inside of the cover shell in that they are designed specifically for a particularly strong adhesive effect. For this purpose, the adhesive portions may in particular be particularly smooth (ie have a particularly low surface roughness), a material particularly suitable for adhesion effects, for example polyurethane, in particular a polyurethane gel, and / or have elasticity suitable for allowing the adhesive portion Shape to adapt to a corresponding mating portion of the protective shell to achieve the closest possible and large-area contact with the mating section.
Dabei können die Haftabschnitte als integraler Bestandteil der Deckschale ausgebildet sein. Alternativ hierzu können die Haftabschnitte aber auch separat von der Deckschale ausgebildet sein. Beispielsweise kann es sich dabei um Haftabschnit- te nach Art von Befestigungspads handeln, die besonders gute Hafteigenschaften aufweisen (z.B. besonders starke Adhäsionswechselwirkungen mit typischen Materialien für Schutzschalen von Helmen ausbilden) und an geeigneten Stellen an der Innenseite der Deckschale befestigt werden. Dabei sind diese separat ausgebildeten Haftabschnitte vorzugsweise insofern fest mit der Deckschale ver- bunden, als diese Verbindung bei einem Lösen der Deckschale von der Schutzschale nicht Gefahr läuft, mitgelöst zu werden. Insbesondere sind also die zwischen einem jeweiligen Haftabschnitt und der Deckschale wirkenden Verbindungskräfte größer als die zwischen dem Haftabschnitt und der Schutzschale wirkenden Haftkräfte. Zudem ist die Verbindung der Haftabschnitte mit der Deck- schale vorzugsweise nicht reversibel, also nicht als bei normaler Benutzung des Helmes lösbare Verbindung ausgelegt. In this case, the adhesive portions may be formed as an integral part of the cover shell. Alternatively, the adhesive portions may also be formed separately from the cover shell. For example, these can be adhesive sections in the manner of attachment pads, which have particularly good adhesive properties (for example, form particularly strong adhesion interactions with typical protective shell materials of helmets) and are fastened at suitable locations on the inside of the cover shell. In this case, these separately formed adhesive sections are preferably firmly connected to the cover shell insofar as this connection does not run the risk of being fastened when the cover shell is detached from the protective shell. In particular, therefore, the connecting forces acting between a respective adhesive portion and the cover shell are greater than the adhesive forces acting between the adhesive portion and the protective shell. In addition, the connection of the adhesive sections with the cover shell preferably not reversible, so not designed as a normal use of the helmet detachable connection.
Die Haftabschnitte können beispielsweise mittels Klebstoff mit der Deckschale fest verbunden sein. Das Vorsehen von Klebstoff zwischen einem jeweiligen Haftabschnitt und der Deckschale steht einer klebstofffrei haftenden Anordnung der Deckschale an der Schutzschale nicht entgegen, da die haftende Anordnung der Deckschale zwischen ihren Haftabschnitten und der Schutzschale erfolgt und somit auch dann klebstofffrei ist, wenn die Haftabschnitte mittels Klebstoff mit der Deckschale fest verbunden sind. The adhesive portions may be firmly connected to the cover shell, for example by means of adhesive. The provision of adhesive between a respective adhesive portion and the cover shell does not preclude an adhesive-free adhering arrangement of the cover shell on the protective shell, since the adhesive arrangement of the cover shell between their adhesive sections and the protective shell takes place and thus is also free of adhesive when the adhesive sections with adhesive the cover shell are firmly connected.
Gemäß einer vorteilhaften Weiterbildung weisen die Haftabschnitte einen oder mehrere jeweilige zum unmittelbaren Anliegen an der Schutzschale, insbesondere an einer Außenfläche der Schutzschale, vorgesehene Haftflächen auf. Gerade diese Haftflächen können dann in Kontakt mit Gegenflächen der Schutzschale treten und auf haftende Weise mit diesen wechselwirken. Wenn beispielsweise der Haftabschnitt selbst flächig ausgebildet ist und lediglich eine Haftfläche aufweist, kann die Haftfläche im Wesentlichen der gesamten der Schutzschale zugewandten Fläche des Haftabschnitts entsprechen. Der Haftabschnitt kann aber auch mehrere voneinander separate Haftflächen aufweisen. Insbesondere, wenn ausschließlich die Haftflächen des Haftabschnitts ein für das Haften besonders geeignetes Material umfassen, kann durch eine verteilte Anordnung mehrerer Haftflächen an einem jeweiligen Haftabschnitt eine Einsparung dieses Materials und somit eine kostengünstigere Fertigung erreicht werden, ohne die erwünschte Haftwirkung wesentlich zu beeinträchtigen. According to an advantageous development, the adhesive sections have one or more respective adhesive surfaces provided for immediate contact with the protective shell, in particular on an outer surface of the protective shell. Especially these adhesive surfaces can then come into contact with mating surfaces of the protective shell and interact with them in an adhesive manner. For example, if the adhesive portion itself is formed flat and has only one adhesive surface, the adhesive surface may substantially correspond to the entire surface of the adhesive portion facing the protective shell. The adhesive portion may also have a plurality of separate adhesive surfaces. In particular, if only the adhesive surfaces of the adhesive portion include a particularly suitable for the adhesion material, a saving of this material and thus a more cost-effective production can be achieved by a distributed arrangement of multiple adhesive surfaces on a respective adhesive portion, without significantly affecting the desired adhesive effect.
Grundsätzlich ist es bevorzugt, wenn die Haftabschnitte zumindest im Bereich jeweiliger Haftflächen ein selbsthaftendes Material, insbesondere ein selbsthaftendes Polymer, vorzugsweise Polyurethan, bevorzugt Polyurethangel, umfasst. Die Haftwirkung eines jeweiligen Haftabschnitts bzw. einer jeweiligen Haftfläche ergibt sich demnach nicht aus einer bestimmten Beschichtung oder Behandlung, sondern einfach aus dem jeweils verwendeten Material selbst. Die lösbar und klebstofffrei haftende Wirkung des Materials kann dabei insbesondere dadurch noch erhöht werden, dass es, etwa zur Ausbildung einer Haftfläche, besonders glatt, d.h. mit einer besonders geringen Oberflächenrauhigkeit, ausgebildet ist, so dass eine besonders große ununterbrochene Kontaktfläche zur Schutzschale gebildet werden kann. Insbesondere kann aufgrund der vorgesehenen Haftabschnitte die (übrige) Deckschale eine rauhe Oberfläche selbst an ihrer Innenseite aufweisen. Dadurch wird ermöglicht, eine Deckschale zu verwenden, die eine für die gewünschte Haftwirkung eigentlich zu große Oberflächenrauhigkeit aufweist, beispielsweise eine Deckschale, die, etwa zur optischen Gestaltung, Versiegelung oder Verstärkung, mit einem Material lackiert ist, das keine glatte, sondern z.B. eine matte Oberfläche ausbildet. Die Schutzschale, an der die Deckschale haftend angeordnet wird, braucht ihrerseits nicht ebenfalls aus einem selbsthaftenden Material ausgebildet zu sein, weist aber vorzugsweise zumindest an einer der Deckschale zugewandten Außenseite ebenfalls eine glatte Oberfläche auf. Wenn die Schutzschale keine glatte Oberfläche aufweist, sondern etwa aufgrund einer Lackierung eine rauhe bzw. matte Oberfläche aufweist, können an der Schutzschale ein oder mehrere Haftvermittlerelemente befestigt sein oder befestigt werden, um zumindest bereichsweise glatte Abschnitte an der Schutzschale auszubilden und so die Haftwirkung der haftenden Anordnung der Deckschale an der Schutzschale zu verstärken. Diese Haftvermittlerelemente können beispielsweise als flächige Elemente, insbesonde- re Streifen, mit glatter Oberfläche ausgebildet sein und an der Schutzschale, z.B. klebend, befestigt sein. Eine klebende Befestigung der Haftvermittlerelemente steht einer klebstofffrei haftenden Anordnung der Deckschale an der Schutzschale dabei nicht entgegen, da die haftende Anordnung bei dieser Ausführungsform zwischen der Deckschale und den Haftvermittlerelementen erfolgt und somit auch dann klebstofffrei ist, wenn die Haftvermittlerelemente mittels Klebstoff an der Schutzschale befestigt sind. In principle, it is preferred if the adhesive sections comprise a self-adhesive material, in particular a self-adhesive polymer, preferably polyurethane, preferably polyurethane gel, at least in the region of respective adhesive surfaces. The adhesive effect of a respective adhesive section or a respective adhesive surface does not result from a particular coating or treatment, but simply from the material itself used. The releasable and adhesive-free adhesive effect of the material can thereby be particularly increased that it, for example, to form an adhesive surface, particularly smooth, ie with a particularly low surface roughness, is formed, so that a particularly large uninterrupted contact surface can be formed to the protective shell. In particular, due to the intended adhesive portions, the (remaining) cover shell may have a rough surface even on its inner side. This makes it possible to use a cover shell, which has a too large surface roughness for the desired adhesion, for example, a cover shell, which is painted, for example for optical design, sealing or reinforcement, with a material that is not smooth, but eg a matte Surface forms. The protective shell, on which the cover shell is adhesively disposed, need not itself likewise be formed from a self-adhesive material, but preferably also has a smooth surface, at least on one of the cover shell facing the outside. If the protective shell does not have a smooth surface but has a rough or matt surface due to painting, for example, one or more adhesion promoter elements can be fastened or fastened to at least partially form smooth sections on the protective shell and thus the adhesive effect of the adhesive To strengthen the arrangement of the cover shell on the protective shell. These adhesion promoter elements can be designed, for example, as flat elements, in particular strips, with a smooth surface and can be fastened to the protective shell, eg by adhesive bonding. Adhesive attachment of the adhesion promoter elements is not precluded by an adhesive-free adhesive arrangement of the cover shell on the protective shell, since the adhesive arrangement in this embodiment takes place between the cover shell and the adhesion promoter elements and thus also is then adhesive-free, if the adhesion promoter elements are attached by means of adhesive to the protective shell.
Das genannte selbsthaftende Material für die Haftabschnitte der Deckschale kann insbesondere im Hinblick auf eine besonders zuverlässige Haftwirkung in Verbindung mit einer Schutzschale aus den eingangs genannten Materialien ausgewählt sein. Said self-adhesive material for the adhesive portions of the cover shell can be selected in particular with regard to a particularly reliable adhesive effect in conjunction with a protective shell of the materials mentioned above.
Gemäß einer Ausführungsform weist die Deckschale an einer bei Anordnung an der Schutzschale von der Schutzschale abgewandten Außenseite einen oder mehrere Reflektorabschnitte auf. Diese Außenseite ist gerade entgegengesetzt zur genannten Innenseite der Deckschale ausgerichtet und daher beim Tragen des jeweiligen Helmes nach außen gewandt und sichtbar. Somit bietet sie sich zur Anordnung von Reflektorabschnitten an, durch welche die Sichtbarkeit des Helms in der Dunkelheit verbessert werden kann. Während es aufgrund der Fertigung eines Helms im In-Mould-Verfahren nicht oder nur mit Aufwand möglich ist, umlaufende oder großflächige Reflektoren an der Schutzschale des Helms vorzusehen, können derartige Reflektoren oder sonstige Reflektorabschnitte auf einfache Weise an der Deckschale angebracht werden. Durch das Vorsehen einer Deckschale mit einem oder mehreren Reflektorabschnitten kann somit der Helm funktional nach Bedarf ergänzt werden, indem z.B. bei Dunkelheit eine Deckschale mit Reflektorabschnitten, bei Helligkeit aber keine oder eine andere Deckschale aufgesetzt wird. Grundsätzlich kann die Deckschale eines oder mehrere der eingangs für die Schutzschale genannten Materialien, insbesondere dasselbe Material wie die Schutzschale umfassen. Gemäß einer weiteren vorteilhaften Ausführungsform umfasst die Deckschale ein zumindest im Wesentlichen lösungsmittelresistentes und/oder lösungsmittelundurchlässiges Material. Im Vergleich zu der Wahl des Materials für die Schutzschale eines Helms, die einerseits im Hinblick auf die Si- cherheit des Helms und andererseits im Hinblick auf die Verwendbarkeit in einem jeweiligen Fertigungsverfahren (beispielsweise das In-Mould-Verfahren) erfolgt, besteht bei der Wahl des Materials für die Deckschale wesentlich mehr Spielraum. So kann das Material der Deckschale insbesondere im Hinblick auf Anforderungen ausgewählt werden, die durch das Material der Schutzschale nicht, nicht auf einfache Weise oder nicht ausreichend erfüllt werden können. Beispielsweise kann das Material der Deckschale lösungsmittelundurchlässig und/oder lösungsmittel- resistent sein und somit etwa ein Bemalen der Deckschale zu deren graphischer Gestaltung mittels lösungsmittelhaltiger Farben ermöglichen. Dabei muss das Material lediglich insoweit lösungsmittelresistent und/oder lösungsmittelundurchlässig sein, als ein Durchdringen von Lösungsmittel zur Schutzschale oder zumindest bis zum Helmkörper eines jeweiligen Helms bei normaler Verwendung ausgeschlossen werden kann. Weiterhin ist es bevorzugt, wenn die Deckschale, insbesondere in einem umlaufenden Randbereich der Deckschale, eine oder mehrere Hinterschneidungen aufweist, um zusätzlich zur haftenden Anordnung an einer jeweiligen Schutzschale eines Helmes auch formschlüssig mit dem Helm verbindbar zu sein. Dabei ist die formschlüssige Verbindung mit dem Helm ebenso wie die haftende Anordnung der Deckschale an der Schutzschale lösbar, also reversibel. Derartige Hinterschneidungen können also einer erhöhten Sicherheit der Anordnung der Deckschale an der Schutzschale dienen. Grundsätzlich sind sie jedoch lediglich ergänzend zur haftenden Anordnung vorgesehen und nicht zwingend erforderlich. Insbesondere unter besonderen Umständen, beispielsweise bei starkem Wind, kann eine derartige zusätzliche Absicherung nützlich sein. Insbesondere im Zusammenhang mit einem modularen System, das weiter unten noch erläutert wird, kann es daher zweckmäßig sein, einerseits Deckschalen mit und andererseits Deckschalen ohne Hinterschneidungen für eine zusätzlich formschlüssige Anordnung vorzusehen. Die Hinterschneidungen müssen dabei nicht zwangsläufig für ein Zusammenwirken mit der Schutzschale des Helms ausgebildet sein, sondern können auch für ein Zusammenwirken mit dem Helmkörper oder einem sonstigen Bestandteil des Helms ausgebildet sein. According to one embodiment, the cover shell has one or more reflector sections on an outer side facing away from the protective shell when disposed on the protective shell. This outside is aligned just opposite to the aforementioned inside of the cover shell and therefore facing outwards when wearing the respective helmet and visible. Thus, it lends itself to the arrangement of reflector sections, by which the visibility of the helmet in the dark can be improved. While it is not or only with effort possible to provide circumferential or large reflectors on the protective shell of the helmet due to the production of a helmet in the in-mold method, such reflectors or other reflector sections can be easily attached to the cover shell. By providing a cover shell with one or more reflector sections, the helmet can thus be functionally supplemented as required, for example by placing a cover shell with reflector sections in the dark, but no or another cover shell in the case of brightness. In principle, the cover shell may comprise one or more of the materials mentioned at the outset for the protective shell, in particular the same material as the protective shell. According to a further advantageous embodiment, the cover shell comprises an at least substantially solvent-resistant and / or solvent-impermeable material. Compared to the choice of material for the protective shell of a helmet, which, on the one hand, safety of the helmet and on the other hand with regard to the usability in a respective manufacturing process (for example, the in-mold process), there is much more scope in the choice of the material for the cover shell. Thus, the material of the cover shell can be selected in particular with regard to requirements that can not be met by the material of the protective shell, not easily or not sufficiently. For example, the material of the cover shell can be solvent-impermeable and / or solvent-resistant and thus make it possible, for example, to paint the cover shell for its graphic design by means of solvent-containing paints. In this case, the material need only be solvent-resistant and / or solvent-impermeable to the extent that penetration of solvent to the protective shell or at least to the helmet body of a respective helmet during normal use can be ruled out. Furthermore, it is preferred if the cover shell, in particular in a peripheral edge region of the cover shell, has one or more undercuts in order to be able to be positively connected to the helmet in addition to the adhesive arrangement on a respective protective shell of a helmet. Here, the positive connection with the helmet as well as the adhesive arrangement of the cover shell on the protective shell is solvable, so reversible. Such undercuts can thus serve to increase the security of the arrangement of the cover shell on the protective shell. In principle, however, they are only provided in addition to the adhesive arrangement and are not absolutely necessary. Especially in special circumstances, for example in strong winds, such additional protection may be useful. In particular, in connection with a modular system, which will be explained below, it may therefore be expedient to provide on the one hand cover shells with and on the other hand cover shells without undercuts for an additional positive-locking arrangement. The undercuts need not necessarily be designed for interaction with the protective shell of the helmet, but may also be designed for cooperation with the helmet body or any other part of the helmet.
Die Erfindung umfasst auch einen Helm, insbesondere Fahrradhelm, mit einem Helmkörper und einer an einer Außenseite des Helmkörpers anliegenden Schutzschale sowie einer Deckschale und/oder wenigstens einem Deckstück, wobei die Deckschale und/oder das wenigstens eine, insbesondere flächige, Deckstück an der Schutzschale lösbar und klebstofffrei haftend angeordnet ist. Die Deckschale kann dabei insbesondere gemäß einer der vorstehend beschriebenen Ausfüh- rungsformen ausgebildet sein. Die Schutzschale und die Deckschale und/oder das wenigstens eine Deckstück des Helms bilden dann gemeinsam eine Außenschale des Helms, wobei die Deckschale und/oder das wenigstens eine Deckstück, insbesondere im Unterschied zur Schutzschale, aufgrund der lediglich haftenden und insbesondere lösbaren Anordnung an dem übrigen Helm austauschbar ist. The invention also encompasses a helmet, in particular bicycle helmet, with a helmet body and a protective shell resting against an outer side of the helmet body and a cover shell and / or at least one cover piece, wherein the cover shell and / or the at least one, in particular planar, cover piece can be detached from the protective shell and is arranged adhesive-free adhesion. The cover shell can be designed in particular according to one of the embodiments described above. The protective shell and the cover shell and / or the at least one cover piece of the helmet then together form an outer shell of the helmet, wherein the cover shell and / or the at least one cover piece, in particular in contrast to the protective shell, due to the merely adhesive and in particular detachable arrangement on the rest Helmet is interchangeable.
Das Verwenden einer solchen Deckschale und/oder wenigstens eines solchen Deckstücks an einem ansonsten als Außenschale lediglich eine Schutzschale aufweisenden Helm ermöglicht es, durch wahlweises haftendes Anordnen einer jeweiligen Deckschale und/oder zumindest eines jeweiligen Deckstücks den Helm je nach Bedarf in seiner Funktion und seinem äußeren Aussehen zu modifizieren. Beispielsweise kann der Helm bei aufgesetzter Deckschale und/oder wenigstens einem aufgesetzten Deckstück eine verbesserte Aerodynamik aufweisen, verbesserten Schutz gegen Regen bieten und/oder ein wahlweise verändertes äußeres Erscheinungsbild aufweisen. Für ein besonders zuverlässiges Haften der Deck- schale und/oder des wenigstens einen Deckstücks ist die Schutzschale zumindest an solchen Abschnitten, an denen die Deckschale und/oder das wenigstens eine Deckstück haftet oder die für ein solches Haften vorgesehen und/oder ausgebildet sind, vorzugsweise glatt, d.h. mit geringer Oberflächenrauhigkeit, ausgebildet. Gemäß einer vorteilhaften Ausführungsform weist die Schutzschale des Helms eine oder mehrere Öffnungen auf, die sich insbesondere auch durch den Helmkörper hindurch erstrecken können, wobei die Deckschale und/oder das wenigstens eine Deckstück derart ausgebildet ist, dass die Deckschale und/oder das wenigstens eine Deckstück bei Anordnung an der Schutzschale zumindest einen Teil der Öffnungen abdeckt. Dabei umfasst das Abdecken sowohl ein vollständiges Verschließen der Öffnungen als auch lediglich eine Verringerung des Öffnungsquerschnitts im Bereich der Außenseite des Helms durch die an der jeweiligen Öffnung der Schutzschale zumindest teilweise anliegende Deckschale und/oder durch das wenigstens eine die an der jeweiligen Öffnung der Schutzschale zumindest teilweise anliegende Deckstück. Auf diese Weise können Öffnungen insbesondere auch derart abgedeckt werden, dass sie zu einer Seite hin quasi verschlossen sind, dass zu einer anderen, insbesondere entgegengesetzten, Seite hin aber weiterhin Luft durch die Öffnung strömen kann. So kann es beispielsweise zweckmäßig sein, eine jeweilige Öffnung des Helms, insbesondere in der Schutzschale des Helms, zur Fahrtrichtung hin gegen ein Eindringen von Luft und/oder Regen abzudecken, die Öffnung aber in die entgegengesetzte Richtung offen zu lassen, um zumindest ein Ausströmen von Luft nach hinten zu ermöglichen. The use of such a cover shell and / or at least one such cover piece on a helmet otherwise having only a protective shell as outer shell makes it possible by selectively sticking a respective cover shell and / or at least one respective cover piece the helmet as needed in its function and its outer To modify appearance. For example, the helmet with attached cover shell and / or at least one attached cover piece can have improved aerodynamics, provide improved protection against rain and / or have an optionally modified external appearance. For a particularly reliable adhesion of the cover shell and / or the at least one cover piece, the protective shell is preferably at least at those portions to which the cover shell and / or the at least one cover piece adheres or which are provided and / or formed for such adhesion smooth, ie with low surface roughness, formed. According to an advantageous embodiment, the protective shell of the helmet on one or more openings, which may in particular also extend through the helmet body, wherein the cover shell and / or the at least one cover piece is formed such that the cover shell and / or the at least one cover piece when arranged on the protective shell covers at least a portion of the openings. The covering comprises both a complete closure of the openings and only a reduction of the opening cross section in the region of the outside of the helmet by the at least partially fitting cover shell at the respective opening of the protective shell and / or by the at least one at the respective opening of the protective shell at least partially fitting cover piece. In this way, openings can in particular also be covered in such a way that they are virtually closed to one side, so that air can still flow through the opening to another, in particular opposite, side. Thus, it may be expedient, for example, to cover a respective opening of the helmet, in particular in the protective shell of the helmet, against the ingress of air and / or rain, but leave the opening open in the opposite direction in order to prevent at least one outflow from To allow air to the rear.
Die Deckschale und/oder das wenigstens eine Deckstück kann ebenfalls Öffnungen aufweisen, von denen zumindest einige bezüglich ihrer Lage mit jeweiligen Öffnungen der Schutzschale korrespondieren können. Allerdings kann die Deckschale auch keinerlei Öffnungen aufweisen oder aber Öffnungen, die nicht mit den genannten Öffnungen der Schutzschale korrespondieren, so dass bei Anordnung der Deckschale und/oder des wenigstens einen Deckstücks an der Schutzschale sämtliche Öffnungen der Schutzschale abgedeckt sind. The cover shell and / or the at least one cover piece may also have openings, at least some of which may correspond with respect to their position with respective openings of the protective shell. However, the cover shell may also have no openings or openings which do not correspond to the openings of the protective shell, so that all openings of the protective shell are covered when the cover shell and / or the at least one cover piece are arranged on the protective shell.
Des Weiteren kann die Deckschale, etwa um Material einzusparen, derart struktu- riert sein, dass sie Öffnungen der Schutzschale abdeckt, jedoch in den übrigen Bereichen Aussparungen aufweist. Grundsätzlich entspricht zwar die Deckschale in ihren Ausmaßen denjenigen der Schutzschale weitgehend. Die Deckschale kann aber auch davon stark abweichende Ausmaße aufweisen und insbesondere wesentlich kleiner als die Schutzschale ausgebildet sein. Furthermore, the cover shell, for example to save material, may be structured such that it covers openings of the protective shell, but in the others Has areas recesses. Basically, although the cover shell in their dimensions largely corresponds to those of the protective shell. However, the cover shell can also have greatly different dimensions and in particular be designed substantially smaller than the protective shell.
Alternativ zu einer solchen Deckschale können auch ein oder mehrere Deckstücke vorgesehen sein, die an verschiedenen Abschnitten der Schutzschale, insbesondere an Öffnungen der Schutzschale lösbar und klebstofffrei haftend angeordnet werden können. Dabei können die Deckstücke für eine bezüglich ihrer jeweiligen Position unspezifische Anordnung an der Schutzschale ausgebildet sein. Alternativ kann aber auch jedes der Deckstücke zur haftenden Anordnung an einen jeweiligen spezifischen Abschnitt der Schutzschale ausgebildet sein, insbesondere indem das jeweilige Deckstück passend zu einem jeweiligen Abschnitt der As an alternative to such a cover shell, it is also possible for one or more cover pieces to be provided which can be detachably and adhesively attached to various sections of the protective shell, in particular to openings of the protective shell. In this case, the cover pieces can be designed for a non-specific arrangement relative to their respective position on the protective shell. Alternatively, however, each of the cover pieces for adhesive arrangement may be formed on a respective specific portion of the protective shell, in particular by the respective cover piece suitable for a respective section of the
Schutzschale geformt ist. Protective shell is molded.
Gemäß einer vorteilhaften Ausführungsform des Helms umfasst die Deckschale und/oder das wenigstens eine Deckstück ein Material, das losungsmittelresistenter und/oder lösungsmittelundurchlässiger ist als ein Material der Schutzschale, insbesondere als das Material, aus dem die Schutzschale hauptsächlich gebildet ist. Auf diese Weise kann die an die Schutzschale angeordnete Deckschale und/oder das wenigstens eine an die Schutzschale angeordnete Deckstück die Schutzschale vor Lösungsmitteln schützen, die beispielsweise in Verbindung mit Farben auf die Deckschale und/oder das wenigstens eine Deckstück aufgetragen werden, um die Deckschale und/oder das wenigstens eine Deckstück graphisch zu gestalten. According to an advantageous embodiment of the helmet, the cover shell and / or the at least one cover piece comprises a material which is more solvent-resistant and / or solvent-impermeable than a material of the protective shell, in particular as the material from which the protective shell is mainly formed. In this way, the cover shell arranged on the protective shell and / or the at least one cover piece arranged on the protective shell can protect the protective shell from solvents which are applied to the cover shell and / or the at least one cover piece, for example in conjunction with paints, to the cover shell and / or to make the at least one cover piece graphically.
Die Erfindung umfasst ferner ein modulares System, welches einen Helm, insbesondere einen Fahrradhelm, mit einem jeweiligen Helmkörper und einer jeweiligen an einer Außenseite des Helmkörpers anliegenden Schutzschale sowie wenigstens eine Deckschale und/oder wenigstens ein, insbesondere flächiges, Deckstück umfasst. Die Deckschale und/oder das wenigstens eine Deckstück kann dabei gemäß zumindest einer der vorstehend genannten Ausführungsformen ausgebildet sein und ist insbesondere dazu ausgebildet, wahlweise an der Schutzschale des Helmes lösbar und klebstofffrei haftend angeordnet zu werden. Durch ein derartiges modulares System werden für einen jeweiligen Helm ein oder mehrere Deckschalen und/oder ein oder mehrere Deckstücke bereitgestellt, die an dem jeweiligen Helm lösbar und klebstofffrei haftend angeordnet werden können. Auf diese Weise können verschiedene Deckschalen und/oder Deckstücke mit demselben Helm wahlweise kombiniert werden. Dazu können insbesondere jewei- lige Deckschalen und/oder jeweilige Deckstücke des Systems auf geeignete Weise an einen jeweiligen Helm des Systems angepasst sein. Diese Anpassung kann insbesondere hinsichtlich der Form sowie einer jeweiligen Verteilung von Öffnungen in dem Helm, insbesondere in der Schutzschale des Helms, bestehen. Die jeweiligen Deckschalen und/oder jeweiligen Deckstücke können alternativ oder zusätzlich auch hinsichtlich ihres Materials für eine möglichst stabil haftende Anordnung an das Material der Schutzschale eines jeweiligen Helms des Systems angepasst sein. The invention further comprises a modular system which comprises a helmet, in particular a bicycle helmet, with a respective helmet body and a respective protective shell resting against an outer side of the helmet body and at least one cover shell and / or at least one, in particular flat, covering piece. The cover shell and / or the at least one cover piece can thereby be formed according to at least one of the aforementioned embodiments and is in particular adapted to be selectively detachably attached to the protective shell of the helmet and adhesive-free. By such a modular system, one or more cover shells and / or one or more cover pieces are provided for a respective helmet, which can be arranged on the respective helmet detachable and adhesive-free adhesive. In this way, different cover shells and / or cover pieces can be optionally combined with the same helmet. For this purpose, in particular respective cover shells and / or respective cover pieces of the system can be suitably adapted to a respective helmet of the system. This adaptation may consist in particular of the shape and a respective distribution of openings in the helmet, in particular in the protective shell of the helmet. The respective cover shells and / or respective cover pieces may alternatively or additionally also be adapted to the material of the protective shell of a respective helmet of the system with regard to their material for a preferably stably adhering arrangement.
Im Rahmen dieses modularen Systems ist es für einen Nutzer eines Helmes des Systems möglich, den Helm je nach geplantem Zweck, etwa für eine verbesserte Aerodynamik bei einem Zeitfahren oder für einen Schutz gegen Regen, und/oder je nach modischer Anforderung, etwa zur farblichen Anpassung an die jeweils getragene Kleidung oder zur Aufbringung von Kennzeichnungen, Abzeichen, Werbelogos und dergleichen, mit einer aus einer Vielzahl möglicher Deckschalen des Systems ausgewählten Deckschale und/oder mit wenigstens einem aus einer Vielzahl möglicher Deckstücke des Systems ausgewählten Deckstück zu versehen. Dabei sind insbesondere verschiedene Deckschalen und/oder Deckstücke, die sich in ihrer Funktion und/oder ihrem Aussehen stark unterscheiden können, zur haftenden Anordnung an denselben Helm vorgesehen. Die Erfindung umfasst außerdem die Verwendung von Deckschalen und/oder wenigstens eines, insbesondere flächigen, Deckstücks, insbesondere gemäß einer jeweiligen Ausführungsform der vorstehend beschriebenen Deckschalen und Deckstücke, zur lösbar und klebstofffrei haftenden Anordnung an Helmen, insbe- sondere Fahrradhelmen. Within the framework of this modular system, it is possible for a user of a helmet of the system to use the helmet according to its intended purpose, such as for improved aerodynamics in a time trial or for protection against rain, and / or depending on fashionable requirements, such as for color adjustment to the respective worn clothing or for the application of markings, badges, advertising logos and the like, to be provided with a selected from a variety of possible cover shells of the system cover shell and / or with at least one of a plurality of possible cover pieces of the system selected cover piece. In particular, different cover shells and / or cover pieces, which may differ greatly in their function and / or appearance, provided for adhering to the same helmet. The invention also includes the use of cover shells and / or at least one, in particular flat, cover piece, in particular according to a respective embodiment of the cover shells and cover pieces described above, for detachable and adhesive-free adhering arrangement of helmets, in particular bicycle helmets.
Die genannten Deckstücke können in ihrer Funktion und ihrer grundsätzlichen Ausgestaltung den beschriebenen Deckschalen entsprechen, wobei sie jedoch vergleichsweise geringere Ausmaße aufweisen und den jeweiligen Helm bzw. die Schutzschale eines jeweiligen Helmes nicht vollständig abdecken. Die Deckstücke können jegliche zur Abdeckung eines bestimmten Abschnitts eines jeweiligen Helmes, insbesondere einer Schutzschale eines jeweiligen Helmes, geeignete Form aufweisen. Beispielsweise können die Deckstücke im Wesentlichen rund oder oval, als Vieleck mit oder ohne abgerundete Ecken oder als Streifen ausge- bildet sein. The aforementioned cover pieces can correspond in their function and their basic design to the cover shells described, but they have comparatively smaller dimensions and do not completely cover the respective helmet or the protective shell of a respective helmet. The cover pieces can have any shape suitable for covering a specific section of a respective helmet, in particular a protective shell of a respective helmet. For example, the cover pieces may be substantially round or oval, polygonal with or without rounded corners, or designed as strips.
Vorzugsweise erfolgt die haftende Anordnung der Deckschalen und/oder Deckstücke zumindest auch an Öffnungen des Helms, insbesondere zu deren Abdeckung, wie vorstehend beschrieben wurde. Preferably, the adhesive arrangement of the cover shells and / or cover pieces is at least also at openings of the helmet, in particular to the cover, as described above.
Die Erfindung wird nachfolgend unter Bezugnahme auf die Figuren lediglich beispielhaft näher erläutert. The invention will be explained in more detail below with reference to the figures by way of example only.
Fig. 1 zeigt in einer schematischen seitlichen Darstellung einen Fig. 1 shows a schematic side view of a
Fahrradhelm mit einer Deckschale gemäß einer beispielhaften Ausführungsform der Erfindung.  Bicycle helmet with a cover shell according to an exemplary embodiment of the invention.
Fig. 2 zeigt eine weitere Ausführungsform der Deckschale mit separat ausgebildeten Haftabschnitten. Fig. 3 zeigt eine weitere Ausführungsform der Deckschale mit zuFig. 2 shows another embodiment of the cover shell with separately formed adhesive portions. Fig. 3 shows a further embodiment of the cover shell with too
Öffnungen des Helms korrespondierenden Öffnungen. Openings of the helmet corresponding openings.
In Fig. 1 ist eine Deckschale 1 1 dargestellt, die lösbar und klebstofffrei haftend an einem Helm 13 angeordnet ist. Der Helm 13 weist einen Helmkörper 15 aus stoßabsorbierendem Hartschaum auf, der zu einer beim Tragen des Helms 13 vom Kopf (nicht dargestellt) wegweisenden Außenseite von einer konvex gewölbten dünnen Schutzschale 17 begrenzt wird. Die Deckschale 1 1 liegt flächig an der Schutzschale 17 an und überdeckt sie fast vollständig. Um dies zu kennzeichnen, ist die von der Deckschale 1 1 überdeckte Kontur der Schutzschale 17 in den Figuren mit gestrichelter Linie dargestellt. Bei dieser Ausführungsform bildet im Wesentlichen die vollständige der Schutzschale 17 zugewandte Innenseite der Deckschale 1 1 einen einheitlichen Haftabschnitt 19, mit dem die Deckschale 1 1 mittels Adhäsionswechselwirkungen an der Schutzschale 17 haftet. In Fig. 1, a cover shell 1 1 is shown, which is arranged releasably and adhesive-free adhering to a helmet 13. The helmet 13 has a helmet body 15 made of shock-absorbing rigid foam, which is bounded by a convexly curved thin protective shell 17 towards a side facing away from the head (not shown) when the helmet 13 is worn. The cover shell 1 1 lies flat against the protective shell 17 and covers it almost completely. In order to identify this, the contour of the protective shell 17 covered by the cover shell 1 1 is shown by dashed lines in the figures. In this embodiment, substantially the entire protective shell 17 facing the inner side of the cover shell 1 1 forms a uniform adhesive portion 19, with which the cover shell 1 1 adheres to the protective shell 17 by means of adhesion interactions.
Demgegenüber weist die ansonsten im Wesentlichen identische Ausführungsform gemäß Fig. 2 von der Deckschale 1 1 separate Haftabschnitte 19' auf, von denen vier entlang eines Scheitels des Helms angeordnete Haftabschnitte 19' im Querschnitt dargestellt sind. Die Haftabschnitte 19' sind dabei als Haftpads ausgebildet und fest mit der Deckschale 1 1 verbunden. Die Haftwirkung der Haftabschnitte 19' basiert dabei darauf, dass die Haftabschnitte 19' als Material ein in Hinblick auf besonders gute Adhäsionseigenschaften geeignet ausgebildetes Polyurethangel umfassen. Während zwischen den Haftabschnitten 19' und der Deckschale 1 1 Klebstoff für die feste irreversible Verbindung der Haftabschnitte 19' mit der Deck- schale 1 1 vorgesehen ist (nicht dargestellt), ist der Bereich zwischen den Haftabschnitten 19' und der Schutzschale 17 klebstofffrei. Zwischen den Haftabschnitten 19' und der Schutzschale 17 erfolgt bei Anordnung der Deckschale 1 1 an die Schutzschale 17 vielmehr eine Haftwirkung, durch die die Deckschale 1 1 an der Schutzschale 17 zuverlässig gehalten wird. Bei der in Fig. 3 dargestellten Ausführungsform weist die Deckschale 1 1 Öffnungen 21 auf, von denen zwei an einem Scheitel des Helms angeordnete Öffnungen 21 dargestellt sind. Die Öffnungen 21 decken dabei entsprechende Öffnungen 23 ab, die in der Schutzschale 17 des Helms 13 vorgesehen sind, und sich als Lüf- tungskanäle 25 durch den Helmkörper 15 bis zu einer dem Kopf zugewandten Innenseite des Helms 13 erstrecken. Diese Öffnungen 23 und Lüftungskanäle 25 sind lediglich schematisch im Querschnitt als eine punktierte Linie dargestellt. Bei der gezeigten Ausführungsform sind die Öffnungen 21 in der Deckschale 1 1 zwar im Bereich der Öffnungen 23 der Schutzschale 17 ausgebildet, dennoch werden die Öffnungen 23 der Schutzschale 17 zumindest teilweise von der Deckschale 1 1 abgedeckt und zwar derart, dass die Öffnungen 21 zur Fahrtrichtung hin (Pfeil) im Wesentlichen verschlossen sind, in entgegengesetzter Richtung jedoch offen. In contrast, the otherwise substantially identical embodiment of FIG. 2 of the cover shell 1 1 separate adhesive portions 19 ', four of which along an apex of the helmet arranged adhesive portions 19' are shown in cross section. The adhesive portions 19 'are formed as adhesive pads and firmly connected to the cover shell 1 1. The adhesive action of the adhesive portions 19 'is based on the fact that the adhesive portions 19' comprise as a material suitably designed in view of particularly good adhesion properties polyurethane gel. While between the adhesive portions 19 'and the cover shell 1 1 adhesive for the solid irreversible connection of the adhesive portions 19' with the cover shell 1 1 is provided (not shown), the area between the adhesive portions 19 'and the protective shell 17 is free of adhesive. Between the adhesive portions 19 'and the protective shell 17 takes place when the cover shell 1 1 to the protective shell 17 rather an adhesive effect by which the cover shell 1 1 is reliably held on the protective shell 17. In the embodiment shown in Fig. 3, the cover shell 1 1 openings 21, two of which are arranged at an apex of the helmet openings 21 are shown. The openings 21 cover corresponding openings 23, which are provided in the protective shell 17 of the helmet 13, and extend as ventilation ducts 25 through the helmet body 15 to an inner side of the helmet 13 facing the head. These openings 23 and ventilation channels 25 are shown only schematically in cross section as a dotted line. In the embodiment shown, although the openings 21 in the cover shell 1 1 are formed in the region of the openings 23 of the protective shell 17, the openings 23 of the protective shell 17 are at least partially covered by the cover shell 1 1 in such a way that the openings 21 to the direction of travel towards (arrow) are substantially closed, in the opposite direction, however, open.
Wie beispielsweise aus den Darstellungen der Fig. 1 und 3 zu erkennen ist, kön- nen an demselben oder ähnlichen Helmen 13 unterschiedliche Deckschalen 1 1 wahlweise zur haftenden Anordnung verwendet werden. Insofern bilden die verschiedenen Deckschalen 1 1 zusammen mit einem oder mehreren jeweiligen Helmen 13 ein modulares System, das besonders viel Flexibilität bei der jeweiligen Anpassung eines Helmes an unterschiedliche Anforderungen bietet. As can be seen, for example, from the representations of FIGS. 1 and 3, 13 different cover shells 11 can optionally be used for the adhesive arrangement on the same or similar helmets. In this respect, the various cover shells 1 1 together with one or more respective helmets 13 form a modular system which offers a great deal of flexibility in the respective adaptation of a helmet to different requirements.
Bezuqszeichenliste LIST OF REFERENCES
Deckschale cover shell
Helm helmet
Helmkörper  helmet body
Schutzschale  protective shell
Haftabschnitt  adhesive portion
Öffnung  opening
Öffnung  opening
Luftkanal  air duct

Claims

Patentansprüche claims
1 . Deckschale (1 1 ) für einen Helm (13), insbesondere Fahrradhelm, mit einem Helmkörper (15) und einer an einer Außenseite des Helmkörpers (15) anliegenden Schutzschale (17) , 1 . Cover shell (1 1) for a helmet (13), in particular bicycle helmet, with a helmet body (15) and a protective shell (17) resting on an outer side of the helmet body (15),
wobei die Deckschale (1 1 ) zur lösbar und klebstofffrei haftenden Anordnung an der Schutzschale (17) ausgebildet ist.  wherein the cover shell (1 1) is designed for detachable and adhesive-free adhesive arrangement on the protective shell (17).
2. Deckschale nach Anspruch 1 , 2. Covering shell according to claim 1,
wobei die Deckschale (1 1 ) an einer bei Anordnung an der Schutzschale (17) der Schutzschale (1 1 ) zugewandten Innenseite einen oder mehrere Haftabschnitte (19, 19') aufweist, mittels derer die Deckschale (1 1 ) an der Schutzschale (17) lösbar und klebstofffrei haftend anordenbar ist.  wherein the cover shell (1 1) has one or more adhesive portions (19, 19 ') on an inner side facing the protective shell (17) of the protective shell (1 1), by means of which the cover shell (11) on the protective shell (17 ) detachable and adhesive-free adhesive can be arranged.
3. Deckschale nach Anspruch 2, 3. cover shell according to claim 2,
wobei die Haftabschnitte (19, 19') separat von der Deckschale (1 1 ) ausgebildet und fest mit der Deckschale (1 1 ) verbunden sind.  wherein the adhesive portions (19, 19 ') formed separately from the cover shell (1 1) and fixed to the cover shell (1 1) are connected.
4. Deckschale nach Anspruch 2 oder 3, 4. Covering shell according to claim 2 or 3,
wobei die Haftabschnitte (19, 19') eine oder mehrere jeweilige zum unmittelbaren Anliegen an der Schutzschale (17), insbesondere an einer Außenfläche der Schutzschale (17), vorgesehene Haftflächen aufweisen.  wherein the adhesive portions (19, 19 ') have one or more respective adhesive surfaces provided for immediate abutment against the protective shell (17), in particular on an outer surface of the protective shell (17).
5. Deckschale nach zumindest einem der Ansprüche 2 bis 4, 5. Covering shell according to at least one of claims 2 to 4,
wobei dieHaftabschnitte (19, 19') zumindest im Bereich jeweiliger Haftflä- chen ein selbsthaftendes Material, insbesondere ein selbsthaftendes Polymer, vorzugsweise Polyurethan, bevorzugt Polyurethangel, umfasst. wherein the adhesive portions (19, 19 ') are at least in the region of respective adhesive surfaces. chen a self-adhesive material, in particular a self-adhesive polymer, preferably polyurethane, preferably polyurethane gel comprises.
Deckschale nach zumindest einem der vorstehenden Ansprüche, wobei die Deckschale (1 1 ) an einer bei Anordnung an der Schutzschale (17) von der Schutzschale (17) abgewandten Außenseite einen oder mehrere Reflektorabschnitte aufweist. Covering shell according to at least one of the preceding claims, wherein the cover shell (1 1) has one or more reflector sections on an outer side facing away from the protective shell (17) when arranged on the protective shell (17).
Deckschale nach zumindest einem der vorstehenden Ansprüche, wobei die Deckschale (1 1 ) ein zumindest im Wesentlichen lösungsmittelre- sistentes und/oder lösungsmittelundurchlässiges Material umfasst. Covering shell according to at least one of the preceding claims, wherein the cover shell (1 1) comprises an at least substantially solvent-resistant and / or solvent-impermeable material.
Deckschale nach zumindest einem der vorstehenden Ansprüche, wobei die Deckschale (1 1 ), insbesondere im einem umlaufenden Randbereich der Deckschale (1 1 ), eine oder mehrere Hinterschneidungen aufweist, um zusätzlich zur haftenden Anordnung an einer jeweiligen Schutzschale (17) eines Helmes (13) auch formschlüssig mit dem Helm (13) verbindbar zu sein. Cover shell according to at least one of the preceding claims, wherein the cover shell (1 1), in particular in a peripheral edge region of the cover shell (1 1), one or more undercuts, in addition to the adhesive arrangement on a respective protective shell (17) of a helmet (13 ) To be positively connected to the helmet (13) connectable.
Helm (13), insbesondere Fahrradhelm, mit einem Helmkörper (15) und einer an einer Außenseite des Helmkörpers (15) anliegenden Schutzschale (17) sowie einer Deckschale (1 1 ) nach zumindest einem der vorstehenden Ansprüche und/oder wenigstens einem flächigen Deckstück, wobei die Deckschale (1 1 ) und/oder das wenigstens eine Deckstück an der Schutzschale (17) lösbar und klebstofffrei haftend angeordnet ist. A helmet (13), in particular a bicycle helmet, having a helmet body (15) and a protective shell (17) resting on an outside of the helmet body (15) and a cover shell (11) according to at least one of the preceding claims and / or at least one flat cover piece, wherein the cover shell (1 1) and / or the at least one cover piece on the protective shell (17) releasably and adhesive-free adhesive is arranged.
Helm nach Anspruch 9, A helmet according to claim 9,
wobei die Schutzschale (17) eine oder mehrere Öffnungen (23) aufweist und wobei die Deckschale (1 1 ) und/oder das wenigstens eine Deckstück derart ausgebildet ist, dass die Deckschale (1 1 ) und/oder das wenigstens eine Deckstück bei Anordnung an der Schutzschale (17) zumindest einen Teil der Öffnungen (23) abdeckt. wherein the protective shell (17) has one or more openings (23) and wherein the cover shell (1 1) and / or the at least one cover piece is formed such that the cover shell (1 1) and / or at least a cover piece, when arranged on the protective shell (17), covers at least part of the openings (23).
1 1 . Helm nach Anspruch 9 oder 10, 1 1. A helmet according to claim 9 or 10,
wobei die Deckschale (1 1 ) und/oder das wenigstens eine Deckstück ein Material umfasst, das lösungsmittelresistenter und/oder lösungsmittelundurchlässiger ist als ein Material der Schutzschale (1 1 ).  wherein the cover shell (11) and / or the at least one cover piece comprises a material which is more solvent-resistant and / or more solvent-impermeable than a material of the protective shell (11).
12. Modulares System umfassend einen Helm (13), insbesondere Fahrradhelm, mit einem jeweiligen Helmkörper (15) und einer jeweiligen an einer Außenseite des Helmkörpers (15) anliegenden Schutzschale (17) sowie wenigstens eine Deckschale (1 1 ) nach zumindest einem der Ansprüche 1 bis 8 und/oder wenigstens ein flächiges Deckstück, wobei die wenigstens eine Deckschale (1 1 ) und/oder das wenigstens eine Deckstück dazu ausgebildet ist, wahlweise an der Schutzschale (17) des Helmes (13) lösbar und klebstofffrei haftend angeordnet zu werden. 12. Modular system comprising a helmet (13), in particular bicycle helmet, with a respective helmet body (15) and a respective on an outer side of the helmet body (15) adjacent the protective shell (17) and at least one cover shell (1 1) according to at least one of the claims 1 to 8 and / or at least one flat cover piece, wherein the at least one cover shell (1 1) and / or the at least one cover piece is adapted to be arranged on the protective shell (17) of the helmet (13) releasably and adhesive-free adhesive ,
13. Verwendung einer Deckschale (1 1 ), insbesondere einer Deckschale (1 1 ) nach zumindest einem der Ansprüche 1 bis 8, und/oder eines flächigen Deckstücks zur lösbar und klebstofffrei haftenden Anordnung an Helmen (13), insbesondere Fahrradhelmen. 13. Use of a cover shell (1 1), in particular a cover shell (1 1) according to at least one of claims 1 to 8, and / or a flat cover piece for releasably and adhesive-free adhesive arrangement of helmets (13), in particular bicycle helmets.
14. Verwendung nach Anspruch 13, 14. Use according to claim 13,
wobei die haftende Anordnung der Deckschale (1 1 ) und/oder des Deckstücks zumindest auch an Öffnungen (23) des Helms, insbesondere zu deren Abdeckung, erfolgt.  wherein the adhesive arrangement of the cover shell (1 1) and / or the cover piece at least also at openings (23) of the helmet, in particular to the cover, takes place.
EP16716558.8A 2015-05-22 2016-04-14 Cover shell Active EP3256014B1 (en)

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DE (1) DE102015108170A1 (en)
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IT202000011887A1 (en) * 2020-05-21 2021-11-21 Stefano Cassoli PROTECTIVE HELMET

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DE3341555A1 (en) * 1983-11-17 1985-05-30 Bayer Ag, 5090 Leverkusen SELF-ADHESIVE SURFACE AREA, METHOD FOR THE PRODUCTION AND USE THEREOF
GB8630459D0 (en) * 1986-12-19 1987-01-28 Secr Defence Impact protection helmet
DE19517642A1 (en) * 1995-05-17 1996-11-21 Knauer Hans Georg Bicycle helmet and method of making the same
CA2171223A1 (en) * 1996-03-07 1997-09-08 Scott Grisewood Reflective helmet cover
JP2962700B2 (en) * 1998-01-22 1999-10-12 オージーケー販売株式会社 Helmet equipment
WO2005055752A1 (en) * 2003-12-05 2005-06-23 K-2 Corporation Helmet with in-mold and post-applied hard shell
US7802321B2 (en) * 2005-11-16 2010-09-28 Janice Boyd Motorcycle helmet cover
DE202006012622U1 (en) 2006-08-17 2006-10-12 Wolf, Nikolaus Holder for keeping bags in open position comprises square box with bag fixing strip around its inside near its rim which is held in position by adhesion or suction
GB0921569D0 (en) * 2009-12-10 2010-01-27 Dover Martin Helmet cover also known as the helmet wrap
DE202010011681U1 (en) * 2010-08-23 2010-10-21 Krauter, Günter helmet
DE102011051745A1 (en) * 2011-07-11 2013-01-17 Casco Group Societate In Comandita Simpla (Scs) Fixing system of jewelery and functional elements to a helmet
US8776272B1 (en) * 2012-03-08 2014-07-15 Protective Sports Equipment International Inc. Helmet cover
US9474317B2 (en) * 2013-10-02 2016-10-25 Bret Berry Dual shell helmet for minimizing rotational acceleration
DE202013011546U1 (en) * 2013-12-19 2014-02-25 Eva-Maria Burner Hats and caps for protective helmets

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DE102015108170A1 (en) 2016-11-24
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PT3256014T (en) 2019-10-31
WO2016188670A1 (en) 2016-12-01

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