EP1535649B1 - Impact absorbing safety element - Google Patents
Impact absorbing safety element Download PDFInfo
- Publication number
- EP1535649B1 EP1535649B1 EP03025920A EP03025920A EP1535649B1 EP 1535649 B1 EP1535649 B1 EP 1535649B1 EP 03025920 A EP03025920 A EP 03025920A EP 03025920 A EP03025920 A EP 03025920A EP 1535649 B1 EP1535649 B1 EP 1535649B1
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- European Patent Office
- Prior art keywords
- hollow body
- protection element
- element according
- impact
- connection
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- 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.)
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
- A63C19/06—Apparatus for setting-out or dividing courts
Definitions
- the invention relates to an impact-absorbing protective element having at least one air under atmospheric pressure, compressible hollow body in which an overpressure builds up by an impact and which is provided with a device for the sudden reduction of the overpressure upon reaching a limit.
- An element of the type mentioned for securing race tracks is known from WO 00/47824.
- This element constitutes a hollow body consisting of an elastically compressible framework and a sheath, in which smaller openings are provided in such a way that air can pass outwards when the hollow body is compressed.
- the openings may be covered by flaps, which are each held by a Velcro again.
- An impact allows air to escape through the openings, with a violent impact opening the hook-and-loop fasteners and fully opening the openings. Due to the elasticity of the scaffold, the element resurfaces, with air again entering through the openings.
- screed routes can be secured in dangerous sections by safety nets arranged along the edge, in which, in order to reduce the elasticity of the tensioned nets, excess lengths are laid down in net loops which are held together by adhesive closures.
- the adhesive closures open and the network is longer. Part of the impact energy is used to open the adhesive closures.
- the invention has now set itself the task of forming an air under atmospheric pressure containing hollow body as an impact-damping protective element, the springback effect is greatly reduced in a violent impact.
- the device at least one intended for bursting, recoverable. Having connection between separable wall parts of the hollow body.
- This compound is formed in cuboidal hollow bodies, in particular along at least one edge.
- the protective element according to the invention thus has a certain elasticity in the event of a weak or low impact, as a result of which weak return spring forces become effective. However, if the impact is more severe, so that the resulting overpressure exceeds the predetermined limit, the device according to the invention becomes effective and the overpressure abruptly and completely degraded, without the hollow body becoming unusable.
- a hook-and-loop fastener whose adhesive force determines the predetermined limit is suitable, wherein the limit value can be determined by selecting the width and the length of the hook-and-loop strips.
- push-button closures can be provided for the bursting connection.
- connection is abruptly released by the internal pressure and achieved a direct complete pressure equalization.
- a bursting connection at all edges of the cuboid hollow body is generally not required.
- a lid-like wall part opens on one or both sides, so that the closure elements are arranged only on three edges.
- the wall parts are firmly connected, for which in particular glued or welded foil strips are suitable.
- the film strips can form a joint along the fourth edge in the case of the pop-up lids, with the individual wall parts not being thrown off. This is particularly beneficial on ski slopes, where they could slide down a slope.
- the hollow body can be formed in a further preferred embodiment of a flat element, so that storage and transport of the hollow body are much easier.
- a cuboid hollow body of six hinged by five film strips wall parts can be unfolded, which are then fixed to the contacting edges of the wall parts by the bursting connections.
- the hollow body can of course also have any other suitable geometric shape.
- the hollow body has at least one discharge opening which at least delays the achievement of the limit value.
- the relief opening must be low in the passage cross section to avoid overpressure build up inside the To allow hollow body.
- the discharge opening is formed by a grid-like wall region in a wall portion of the hollow body.
- a further preferred embodiment of the invention provides that the hollow body has two separate chambers, for which different criteria for overpressure reduction are defined.
- the hollow body is depending on the strength of the impact either only in a chamber, for which a lower limit applies, or reduced in both chambers of the pressure, or equal limits are achieved with a time delay.
- one chamber may have a relief opening and the second chamber may not.
- different relief openings can be formed in both chambers, for example by varying the mesh sizes or sizes of the grid-like wall regions.
- a third possibility for example, is that the lengths and widths of the Velcro strip are different, so that the adhesive forces are uneven. It is of course also conceivable that the hollow body has more than two chambers.
- a hollow body according to the invention can be connected to other similar hollow bodies and joined together to form a larger impact damping element, wherein, for example, each hollow body has an opening lid.
- connecting means are provided on the outside of the hollow body, e.g. also velcro strips, provided.
- fastening elements for fixing to an obstacle or on the ground can be connected to the hollow body.
- On visible outer surfaces of the hollow body, in particular a plurality of juxtaposed hollow body advertising elements or the like can be further secured by means of further connecting means.
- a protective element for obstacles of all kinds in the area of a traffic area as well as for delineating the traffic area against dangerous secondary areas has a hollow body 1, the interior of which contains air under normal pressure.
- the interior can be closed to the environment, as shown in FIG. 1, but can also be flow-connected to the environment through an opening, for example through a grid-like wall region 10, as shown in FIGS. 6 and 10.
- the hollow body 1 is in particular composed of individual wall parts 2, 3, which consist, for example, in each case of a foamed polyethylene plate 4 provided on both sides with an airtight coating 5.
- the wall parts 2, 3 are hingedly connected at least along some edges by means of film strips 7, wherein they are preferably unfolded from a flat element and fixed in the spatial form.
- a hollow body 1 according to FIGS. 1 to 4 is cuboid and has four lateral wall parts 2 and two cover-like wall parts, of which at least the upper wall part 3 is hingedly connected along one edge to a wall part 2.
- Velcro strips 8, 9 are arranged, which keep closed the lid-like wall part 3 with a certain holding force.
- the hollow body 1 has a cover-like wall part 3 in which a relief opening in the form of a lattice-like wall region 10 is provided.
- These hollow bodies can also be strung together by means of Velcro strips 6, for example, as FIG. 7 shows.
- the protective element constructed from ten hollow bodies 1 in FIG. 7 has further Connecting means, in particular also in the form of Velcro strips on which soft plates 11, for example, can be fixed for advertising. At the bottom of each plate 11, a snow grille 12 is provided for use on ski slopes.
- the air in the interior of the hollow body 1 is at atmospheric pressure, so that in a weak impact, an elastic damping takes place, wherein in the embodiment of FIG. 6, a portion of the air is forced through the grid openings to the outside.
- Fig. 8 shows a further embodiment in which the hollow body 1 has two mutually separated by a central wall chambers 13, each of which, similar to FIG. 6 by a lattice-like wall portion 10, 16 containing cover-like wall part 3 is closed, again along the outer edges Velcro strips 8, 9 are arranged.
- the grid-like wall regions 10, 16 have different passage cross-sections, resulting from different grid sizes or mesh sizes.
- a graded impact attenuation is given because the lid-like wall part 3 of that chamber 13, the grating region 16 detects a larger passage cross-section, later or not at all opens.
- the adhesive forces of the Velcro strips 8, 9 of the two wall parts 3 may be different.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
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- Vibration Dampers (AREA)
Abstract
Description
Die Erfindung betrifft ein aufpralldämpfendes Schutzelement, das mindestens einen Luft unter atmosphärischem Druck enthaltenden, zusammendrückbaren Hohlkörper aufweist, in dem sich durch einen Aufprall ein Überdruck aufbaut und der mit einer Einrichtung zum schlagartigen Abbau des Überdrucks bei Erreichen eines Grenzwertes versehen ist.The invention relates to an impact-absorbing protective element having at least one air under atmospheric pressure, compressible hollow body in which an overpressure builds up by an impact and which is provided with a device for the sudden reduction of the overpressure upon reaching a limit.
Um natürliche oder künstliche Hindernisse auf Verkehrsflächen, wie Schipisten, Rodelbahnen, Querfeldeinstrecken, Modellautostrecken, etc. zu entschärfen, ist es beispielsweise aus der AT 381 460 B oder der EP 0 945 154 A bekannt, Elemente aus einem geeigneten Schaumstoff in flexiblen Umhüllungen, beispielsweise aus einem Planenmaterial an den Hindernissen anzubringen. Für diesen Zweck werden weiters auch aufgeblasene Körper, die ebenfalls in Umhüllungen angeordnet sind, an den Hindernissen fixiert (US 3,831,941, US 4,596,106).In order to defuse natural or artificial obstacles on traffic areas, such as ski slopes, toboggan runs, cross-country trails, model car lines, etc., it is known, for example from AT 381 460 B or EP 0 945 154 A, elements made of a suitable foam in flexible sheaths, for example from tarpaulin material to the obstacles. For this purpose also inflated body, which are also arranged in sheaths, fixed to the obstacles (US 3,831,941, US 4,596,106).
Ein Element der eingangs genannten Art zur Sicherung von Rennstrecken ist aus der WO 00/47824 bekannt. Dieses Element stellt einen Hohlkörper dar, der aus einem elastischen zusammendrückbaren Gerüst und einer Umhüllung besteht, in der kleinere Öffnungen in der Weise vorgesehen sind, dass durch sie Luft beim Zusammendrücken des Hohlkörpers nach außen treten kann. Die Öffnungen können von Klappen überdeckt sein, die jeweils durch einen Klettverschluss wieder gehalten werden. Ein Aufprall lässt Luft durch die Öffnungen entweichen, wobei ein heftiger Aufprall die Klettverschlüsse öffnet und die Öffnungen vollständig frei gibt. Aufgrund der Elastizität des Gerüstes stellt sich das Element wieder auf, wobei Luft wieder durch die Öffnungennach innen eintritt. Dennoch ist aber aufgrund des geringen Querschnitts der Öffnungen bei einem starken Aufprall mit hoher Wucht der Druckabbau über die Öffnungen viel zu gering, sodass der Hohlkörper trotz der Entlastungsöffnungen entweder eine zu hohe Elastizität aufweist, die den aufprallenden Menschen bzw. Gegenstand zurückschleudern lässt, oder platzt und zerstört ist.An element of the type mentioned for securing race tracks is known from WO 00/47824. This element constitutes a hollow body consisting of an elastically compressible framework and a sheath, in which smaller openings are provided in such a way that air can pass outwards when the hollow body is compressed. The openings may be covered by flaps, which are each held by a Velcro again. An impact allows air to escape through the openings, with a violent impact opening the hook-and-loop fasteners and fully opening the openings. Due to the elasticity of the scaffold, the element resurfaces, with air again entering through the openings. Nevertheless, due to the small cross-section of the openings in the event of a strong impact with high force, the pressure reduction across the openings is much too low, so that the hollow body, in spite of the discharge openings, either has too high an elasticity that can be thrown back or bursting the impacting person or object and destroyed.
Gemäß der AT 299 039 B können Schirennstrecken in gefährlichen Abschnitten durch längs des Randes angeordnete Auffangnetze gesichert werden, bei denen zur Verringerung der Elastizität der gespannten Netze Überlängen in Netzschlaufen abgelegt sind, die durch Haftverschlüsse zusammengehalten sind. Bei einem entsprechend großem Aufprall öffnen sich die Haftverschlüsse und das Netz wird länger. Ein Teil der Aufprallenergie wird zum Öffnen der Haftverschlüsse verwendet.According to AT 299 039 B, screed routes can be secured in dangerous sections by safety nets arranged along the edge, in which, in order to reduce the elasticity of the tensioned nets, excess lengths are laid down in net loops which are held together by adhesive closures. In a correspondingly large impact, the adhesive closures open and the network is longer. Part of the impact energy is used to open the adhesive closures.
Die Erfindung hat es sich nun zur Aufgabe gestellt, einen Luft unter atmosphärischem Druck enthaltenden Hohlkörper als aufpralldämpfendes Schutzelement auszubilden, dessen Rückfederwirkung bei einem heftigen Aufprall stark verringert ist.The invention has now set itself the task of forming an air under atmospheric pressure containing hollow body as an impact-damping protective element, the springback effect is greatly reduced in a violent impact.
Erfindungsgemäß wird dies nun dadurch erreicht, dass die Einrichtung zumindest eine zum Aufplatzen bestimmte, wiederherstellbare . Verbindung zwischen voneinander trennbaren Wandteilen des Hohlkörpers aufweist. Diese Verbindung ist bei quaderförmigen Hohlkörpern insbesondere entlang zumindest einer Kante ausgebildet.According to the invention this is now achieved in that the device at least one intended for bursting, recoverable. Having connection between separable wall parts of the hollow body. This compound is formed in cuboidal hollow bodies, in particular along at least one edge.
Das erfindungsgemäße Schutzelement weist somit bei einem schwachen bzw. geringen Aufprall eine bestimmte Elastizität auf, durch die schwache Rückfederkräfte wirksam werden. Ist der Aufprall hingegen heftiger, sodass der entstehende Überdruck den vorgegebenen Grenzwert überschreitet, so wird die erfindungsgemäße Einrichtung wirksam und der Überdruck schlagartig und vollständig abgebaut, ohne dass der Hohlkörper unbrauchbar wird.The protective element according to the invention thus has a certain elasticity in the event of a weak or low impact, as a result of which weak return spring forces become effective. However, if the impact is more severe, so that the resulting overpressure exceeds the predetermined limit, the device according to the invention becomes effective and the overpressure abruptly and completely degraded, without the hollow body becoming unusable.
Für die aufplatzende Verbindung zwischen den Wandteilen eignet sich insbesondere ein Klettverschluss, dessen Haftkraft den vorgegebenen Grenzwert bestimmt, wobei der Grenzwert durch Auswahl der Breite und der Länge der Klettverschlussstreifen festgelegt werden kann.For the split-open connection between the wall parts, in particular, a hook-and-loop fastener whose adhesive force determines the predetermined limit is suitable, wherein the limit value can be determined by selecting the width and the length of the hook-and-loop strips.
In einer weiteren Ausführung lassen sich für die aufplatzende Verbindung beispielsweise Druckknopfverschlüsse vorsehen.In a further embodiment, for example, push-button closures can be provided for the bursting connection.
In beiden Fällen wird die Verbindung durch den inneren Überdruck schlagartig gelöst und ein unmittelbarer vollständiger Druckausgleich erzielt.In both cases, the connection is abruptly released by the internal pressure and achieved a direct complete pressure equalization.
Bei einem quaderförmigen Hohlkörper sind derartige Verschlüsse beispielsweise an allen Kanten denkbar, sodass der Hohlkörper in sechs einzelne Platten zerfällt.In a cuboid hollow body such closures are conceivable, for example, at all edges, so that the hollow body disintegrates into six individual plates.
Um den Hohlkörper wieder herzustellen, werden die sechs Platten wieder aneinander gestellt. Der durch den Aufprall zerlegte, aber nicht zerstörte, Hohlkörper ist innerhalb kürzester Zeit wiederhergestellt und einsatzbereit.To restore the hollow body, the six plates are put back together. The hollow body, disassembled by the impact but not destroyed, is restored and ready for use within a very short time.
Eine platzende Verbindung an allen Kanten des quaderförmigen Hohlkörpers ist im Allgemeinen nicht erforderlich. Für die meisten Anwendungsfälle ist es ausreichend, wenn sich ein- oder beidseitig ein deckelartiger Wandteil öffnet, sodass die Verschlusselemente nur an jeweils drei Kanten angeordnet werden. An allen übrigen Kanten sind die Wandteile fest verbunden, wofür sich insbesondere verklebte oder verschweißte Folienstreifen eignen. Die Folienstreifen können bei den aufspringenden Deckeln jeweils entlang der vierten Kante ein Gelenk bilden, wobei die einzelnen Wandteile nicht weggeschleudert werden. Dies ist insbesondere auf Schipisten von Vorteil, auf denen sie einen Hang hinunterrutschen könnten.A bursting connection at all edges of the cuboid hollow body is generally not required. For most applications, it is sufficient when a lid-like wall part opens on one or both sides, so that the closure elements are arranged only on three edges. At all other edges, the wall parts are firmly connected, for which in particular glued or welded foil strips are suitable. The film strips can form a joint along the fourth edge in the case of the pop-up lids, with the individual wall parts not being thrown off. This is particularly beneficial on ski slopes, where they could slide down a slope.
Der Hohlkörper kann in einer weiteren bevorzugten Ausführung aus einem flachen Element gebildet werden, sodass Lagerung und Transport der Hohlkörper wesentlich erleichtert sind. So lässt sich ein quaderförmiger Hohlkörper aus sechs durch fünf Folienstreifen gelenkig verbundene Wandteile auffalten, die dann an den berührenden Rändern der Wandteile durch die platzenden Verbindungen fixiert werden.The hollow body can be formed in a further preferred embodiment of a flat element, so that storage and transport of the hollow body are much easier. Thus, a cuboid hollow body of six hinged by five film strips wall parts can be unfolded, which are then fixed to the contacting edges of the wall parts by the bursting connections.
Der Hohlkörper kann selbstverständlich auch jede andere geeignete geometrische Form aufweisen.The hollow body can of course also have any other suitable geometric shape.
Um bei einem geringen Aufprall nicht unnötig das Platzen der Verbindung hervorzurufen, ist in einer weiteren bevorzugten Ausführung vorgesehen, dass der Hohlkörper zumindest eine Entlastungsöffnung aufweist, die das Erreichen des Grenzwertes zumindest verzögert. Die Entlastungsöffnung muss im Durchtrittsquerschnitt gering sein, um einen Überdruckaufbau im Inneren des Hohlkörpers zu ermöglichen. Insbesondere ist daher vorgesehen, dass die Entlastungsöffnung durch einen gitterartigen Wandbereich in einem Wandteil des Hohlkörpers gebildet ist.In order not to unnecessarily cause the bursting of the connection at a low impact, it is provided in a further preferred embodiment that the hollow body has at least one discharge opening which at least delays the achievement of the limit value. The relief opening must be low in the passage cross section to avoid overpressure build up inside the To allow hollow body. In particular, it is therefore provided that the discharge opening is formed by a grid-like wall region in a wall portion of the hollow body.
Eine weitere bevorzugte Ausführung der Erfindung sieht vor, dass der Hohlkörper zwei voneinander getrennte Kammern aufweist, für die unterschiedliche Kriterien für den Überdruckabbau definiert sind. Bei einem derartigen Hohlkörper wird abhängig von der Stärke des Aufpralls entweder nur in einer Kammer, für die ein niedererer Grenzwert gilt, oder in beiden Kammern der Überdruck abgebaut, oder es werden gleiche Grenzwerte zeitversetzt erreicht.A further preferred embodiment of the invention provides that the hollow body has two separate chambers, for which different criteria for overpressure reduction are defined. In such a hollow body is depending on the strength of the impact either only in a chamber, for which a lower limit applies, or reduced in both chambers of the pressure, or equal limits are achieved with a time delay.
Diese unterschiedlichen Kriterien lassen sich durch verschiedene Maßnahmen in einfacher Weise erzielen. So kann eine Kammer eine Entlastungsöffnung aufweisen und die zweite Kammer nicht. Weiters können in beiden Kammern unterschiedliche Entlastungsöffnungen ausgebildet werden, indem beispielsweise die Maschenweiten oder Größen der gitterartigen Wandbereiche variiert werden. Eine dritte Möglichkeit sieht beispielsweise vor, dass die Längen und Breiten der Klettverschlussstreifen unterschiedlich sind, sodass die Haftkräfte ungleich sind. Es ist selbstverständlich auch denkbar, dass der Hohlkörper mehr als zwei Kammern aufweist.These different criteria can be achieved by various measures in a simple manner. Thus, one chamber may have a relief opening and the second chamber may not. Furthermore, different relief openings can be formed in both chambers, for example by varying the mesh sizes or sizes of the grid-like wall regions. A third possibility, for example, is that the lengths and widths of the Velcro strip are different, so that the adhesive forces are uneven. It is of course also conceivable that the hollow body has more than two chambers.
Ein erfindungsgemäßer Hohlkörper kann mit anderen gleichartigen Hohlkörpern verbunden und zu einem größeren Aufpralldämpfelement zusammengefügt werden, wobei beispielsweise jeder Hohlkörper einen aufspringenden Deckel aufweist. Hiefür sind vorzugsweise Verbindungsmittel an der Außenseite des Hohlkörpers, z.B. ebenfalls Klettverschlussstreifen, vorgesehen. Ebenso können mit Hilfe derartiger Verbindungsmittel Befestigungselemente zur Fixierung an einem Hindernis oder am Untergrund mit dem Hohlkörper verbunden werden. An sichtbaren Außenflächen des Hohlkörpers, insbesondere mehrerer aneinander gereihter Hohlkörper können weiters auch Reklameelemente oder dergleichen mittels weiterer Verbindungsmittel befestigt werden.A hollow body according to the invention can be connected to other similar hollow bodies and joined together to form a larger impact damping element, wherein, for example, each hollow body has an opening lid. For this, preferably connecting means are provided on the outside of the hollow body, e.g. also velcro strips, provided. Likewise, with the aid of such connecting means fastening elements for fixing to an obstacle or on the ground can be connected to the hollow body. On visible outer surfaces of the hollow body, in particular a plurality of juxtaposed hollow body advertising elements or the like can be further secured by means of further connecting means.
Nachstehend wird nun die Erfindung an Hand der Figuren der beiliegenden Zeichnungen näher beschrieben, ohne darauf beschränkt zu sein. Es zeigen:
- Fig. 1 ein erfindungsgemäßes Schutzelement in Schrägansicht,
- Fig. 2 ein Schutzelement mit geöffnetem Deckel,
- Fig. 3 einen Schnitt durch den Gelenkbereich des geöffneten Deckels nach Fig. 2,
- Fig. 4 einen Schnitt durch einen zum Platzen bestimmten Verbindungsbereich des geschlossenen Deckels nach Fig. 1
- Fig. 5 eine aneinandergefügte Reihe von 10 Hohlkörpern nach Fig. 1,
- Fig. 6 eine zweite Ausführung eines erfindungsgemäßen Schutzelementes,
- Fig. 7 eine aneinandergefügte Reihe von 10 Hohlkörpern nach Fig. 6, und
- Fig. 8 eine dritte Ausführung eines erfindungsgemäßen Schutzelementes.
- 1 shows an inventive protective element in an oblique view,
- 2 shows a protective element with the lid open,
- 3 shows a section through the hinge region of the open lid of FIG. 2,
- 4 shows a section through a particular rupture connection region of the closed lid of FIG .. 1
- 5 is a joined row of 10 hollow bodies according to Fig. 1,
- 6 shows a second embodiment of a protective element according to the invention,
- Fig. 7 is a joined series of 10 hollow bodies according to Fig. 6, and
- Fig. 8 shows a third embodiment of a protective element according to the invention.
Ein Schutzelement für Hindernisse aller Art im Bereich einer Verkehrsfläche sowie auch zur Abgrenzung der Verkehrsfläche gegen gefährliche Nebenbereiche weist einen Hohlkörper 1 auf, dessen Innenraum Luft unter Normaldruck enthält. Der Innenraum kann gegenüber der Umgebung abgeschlossen sein, wie Fig. 1 zeigt, kann aber auch durch eine Öffnung, beispielsweise durch einen gitterartigen Wandbereich 10, wie Fig. 6 und 10 zeigen, mit der Umgebung strömungsverbunden sein.A protective element for obstacles of all kinds in the area of a traffic area as well as for delineating the traffic area against dangerous secondary areas has a
Der Hohlkörper 1 ist insbesondere aus einzelnen Wandteilen 2, 3 zusammengesetzt, die beispielsweise jeweils aus einer beidseitig mit einer luftdichten Beschichtung 5 versehenen Platte 4 aus geschäumten Polyethylen bestehen. Die Wandteile 2, 3 sind zumindest entlang einiger Kanten mittels Folienstreifen 7 gelenkig verbunden, wobei sie bevorzugt aus einem flachen Element aufgefaltet und in der Raumform fixiert sind.The
Ein Hohlkörper 1 nach den Fig. 1 bis 4 ist quaderförmig und weist vier seitliche Wandteile 2 und zwei deckelartige Wandteile auf, von denen zumindest der obere Wandteil 3 entlang einer Kante mit einem Wandteil 2 gelenkig verbunden ist. Entlang der drei anderen Kanten sind Klettverschlussstreifen 8, 9 angeordnet, die den geschlossenen deckelartigen Wandteil 3 mit einer bestimmten Haltekraft geschlossen halten. An den Außenseiten können, wie Fig. 5 zeigt, weitere Klettverschlussstreifen als Verbindungselemente 6 zur Aneinanderreihung mehrerer Hohlkörper 1 vorgesehen werden.A
In der zweiten Ausführung nach Fig. 6 und 7 weist der Hohlkörper 1 einen deckelartigen Wandteil 3 auf, in dem eine Entlastungsöffnung in Form eines gitterartigen Wandbereichs 10 vorgesehen ist. Auch diese Hohlkörper können beispielsweise mittels Klettverschlussstreifen 6 aneinandergereiht werden, wie Fig. 7 zeigt. Das in Fig. 7 aus zehn Hohlkörpern 1 aufgebaute Schutzelement weist weitere Verbindungsmittel, insbesondere ebenfalls in Form von Klettverschlussstreifen auf, an denen weiche Platten 11, beispielsweise für Reklame fixiert werden können. Am unteren Rand jeder Platte 11 ist für die Verwendung auf Schipisten eine Schneegitter 12 vorgesehen.In the second embodiment according to FIGS. 6 and 7, the
Wie bereits erwähnt, steht die Luft im Inneren des Hohlkörpers 1 unter Atmosphärendruck, sodass bei einem schwachen Aufprall eine elastische Dämpfung erfolgt, wobei in der Ausführung nach Fig. 6 ein Teil der Luft durch die Gitteröffnungen nach außen gedrückt wird. Überschreitet aufgrund eines starken Aufpralls der sich im Inneren des Hohlkörpers 1 aufbauende Druck ein vorbestimmtes Ausmaß, so wird der Überdruck schlagartig abgebaut, indem die von den Klettverschlussstreifen 8, 9 gehaltenen Deckel 3 aufspringen. Nach dem Druckabbau können die Hohlkörper 1 durch Schließen der Deckel bzw. durch Zurückführen der Laschen wieder in ihren verwendbaren Zustand gebracht werden.As already mentioned, the air in the interior of the
Fig. 8 zeigt ein weiteres Ausführungsbeispiel, in dem der Hohlkörper 1 zwei voneinander durch eine Mittelwand getrennte Kammern 13 aufweist, von denen jede, ähnlich Fig. 6 durch einen einen gitterartigen Wandbereich 10, 16 enthaltenden deckelartigen Wandteil 3 verschlossen ist, wobei wiederum entlang der äußeren Ränder Klettverschlussstreifen 8, 9 angeordnet sind. Die gitterartigen Wandbereiche 10, 16 haben unterschiedliche Durchtrittsquerschnitte, die sich aus unterschiedlichen Gittergrößen oder Maschenweiten ergeben. Bei diesem Schutzelement ist eine abgestufte Aufpralldämpfung gegeben, da sich der deckelartige Wandteil 3 jener Kammer 13, deren Gitterbereich 16 einem größeren Durchtrittsquerschnitt erfasst, später oder gar nicht öffnet. Ebenso können auch die Haftkräfte der Klettverschlussstreifen 8, 9 der beiden Wandteile 3 verschieden sein.Fig. 8 shows a further embodiment in which the
Claims (10)
- An impact-damping protection element having at least one compressible hollow body which contains air under atmospheric pressure and in which an increased pressure is built up due to an impact and which is provided with a device for abruptly reducing the increased pressure when a limit value is reached, characterised in that the device has at least one connection which is intended to burst open and which is restorable between wall portions (2, 3) of the hollow body (1), which can be separated from each other.
- A protection element according to claim 1 characterised in that the connection is provided along at least one edge of the hollow body (1).
- A protection element according to claim 1 or claim 2 characterised in that a hook-and-loop fastener (8, 9) is provided as the connection between the wall portions (2, 3) which can be separated from each other.
- A protection element according to claim 1 or claim 2 characterised in that a press stud fastener is provided as the connection between the wall portions (2, 3) which can be separated from each other.
- A protection element according to one of claims 1 to 4 characterised in that the hollow body (1) has at least one relief opening which at least delays the attainment of the limit value.
- A protection element according to claim 5 characterised in that the relief opening is formed by a mesh-like wall region (10, 16) in a wall portion (2, 3) of the hollow body (1).
- A protection element according to one of claims 1 to 6 characterised in that the hollow body (2) has two chambers (13) which are separated from each other and for which different criteria are defined for the reduction in increased pressure.
- A protection element according to one of claims 1 to 7 characterised in that the hollow body (1) has wall portions (2, 3) which are hingedly connected together and it can be unfolded from a flat condition.
- A protection element according to claim 2 and claim 8 characterised in that the restorable connections intended for bursting open are provided along the edges which are not hingedly connected of the unfolded hollow body (1).
- A protection element according to one of claims I to 8 characterised in that each wall portion (2, 3) comprises a panel (4) of foamed polyethylene, which is airtightly coated on both sides.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03025920A EP1535649B1 (en) | 2003-11-12 | 2003-11-12 | Impact absorbing safety element |
AT03025920T ATE330675T1 (en) | 2003-11-12 | 2003-11-12 | IMPACT-ABSORBING PROTECTIVE ELEMENT |
DE50303983T DE50303983D1 (en) | 2003-11-12 | 2003-11-12 | Impact-absorbing protective element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03025920A EP1535649B1 (en) | 2003-11-12 | 2003-11-12 | Impact absorbing safety element |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1535649A1 EP1535649A1 (en) | 2005-06-01 |
EP1535649B1 true EP1535649B1 (en) | 2006-06-21 |
Family
ID=34442855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03025920A Expired - Lifetime EP1535649B1 (en) | 2003-11-12 | 2003-11-12 | Impact absorbing safety element |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1535649B1 (en) |
AT (1) | ATE330675T1 (en) |
DE (1) | DE50303983D1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT507294B1 (en) * | 2008-09-17 | 2010-04-15 | Bellutti Arthur | IMPACT PROTECTION |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3851730A (en) * | 1973-08-30 | 1974-12-03 | John T Scurlock | Inflatable safety cushion system for controlled deceleration from falls of great height |
US3990726A (en) * | 1975-04-23 | 1976-11-09 | Nissan Motor Co., Ltd. | Inflatable and semi-crushable safety bag for vehicle passenger |
SE449082B (en) * | 1981-08-27 | 1987-04-06 | Tetra Pak Int | PACKAGING CONTAINER SUBJECT, SET TO MANUFACTURE THE SAME AND OF THE SUBJECT MANUFACTURED PACKAGING CONTAINER |
US6702511B2 (en) * | 2002-01-16 | 2004-03-09 | Rockford Roy Russell | Crash guard with monitoring |
-
2003
- 2003-11-12 DE DE50303983T patent/DE50303983D1/en not_active Expired - Lifetime
- 2003-11-12 EP EP03025920A patent/EP1535649B1/en not_active Expired - Lifetime
- 2003-11-12 AT AT03025920T patent/ATE330675T1/en active
Also Published As
Publication number | Publication date |
---|---|
ATE330675T1 (en) | 2006-07-15 |
DE50303983D1 (en) | 2006-08-03 |
EP1535649A1 (en) | 2005-06-01 |
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