EP0063254B1 - Safety slalom pole - Google Patents

Safety slalom pole Download PDF

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Publication number
EP0063254B1
EP0063254B1 EP82102438A EP82102438A EP0063254B1 EP 0063254 B1 EP0063254 B1 EP 0063254B1 EP 82102438 A EP82102438 A EP 82102438A EP 82102438 A EP82102438 A EP 82102438A EP 0063254 B1 EP0063254 B1 EP 0063254B1
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EP
European Patent Office
Prior art keywords
pole
safety
slalom
pivot
spring
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Expired
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EP82102438A
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German (de)
French (fr)
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EP0063254A1 (en
Inventor
Gerd D. Maibach
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Individual
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Individual
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Priority to AT82102438T priority Critical patent/ATE14080T1/en
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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
    • A63C19/062—Slalom gate poles, posts or marking sticks for sport fields
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/627—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection self-righting after deflection or displacement
    • E01F9/629—Traffic guidance, warning or control posts, bollards, pillars or like upstanding bodies or structures
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/631—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact
    • E01F9/638—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact by connection of stud-and-socket type, e.g. spring-loaded

Definitions

  • the invention relates to a safety slalom rod with a rod bottom part which can be plugged into the ground and which is elastically and elastically bendably connected via a joint to a rod upper part, the joint having at least two rotationally symmetrical joint bodies which, in the rest position, are centered in their mutual position on contact surfaces oriented perpendicular to the rod axis abut each other, wherein at least one flexible tendon is also guided through the joint body, through which they are axially clamped together via at least one spring.
  • a safety slalom rod known from DE-OS 2 428 659 has a single flexure.
  • this slalom pole When used, this slalom pole must be inserted into the snow at an exact depth, whereby the joint should be attached as far as possible below the snow surface to avoid possible injuries. If it is inserted too deeply or the snow is very hard, this will prevent the snow from swinging out over the joint.
  • a slalom rod is known from DE-A 29 02 082, in which the only joint provided is formed by a rubber tube.
  • this joint training is very simple. It is disadvantageous that the elastic properties of the rubber are strongly temperature-dependent and the rubber hose is easily damaged by the sharp ski edges, so that the service life of such slalom poles is severely limited.
  • the object of the present invention is to improve a safety slalom stick of the type mentioned at the outset such that it swings out only briefly after a deflection and at the same time permits greater deviations in the insertion depth into the ground, without endangering the athletes.
  • the invention provides that the joint is formed by at least two bending joints arranged at a distance from one another, each bending joint being formed by two joint bodies, and that all bending joints are braced one behind the other via a common tensioning device and for this purpose by all joint bodies or the flexible tendons are guided.
  • the arrangement of several bending joints results in strong vibration damping, so that the rod straightens up relatively quickly and stands still. Furthermore, by extending the bending joints over a greater length, the safety slalom rod can be used with a relatively large tolerance without there being any risk of injury to the athlete through the firmly anchored lower part of the rod. A further driving in when driving down even a thicker layer of snow is also unnecessary.
  • the relative movement of the tendon in the joint bodies can be kept small in that two springs are provided symmetrically and that the springs are each provided between one of the end pieces and a spring plate.
  • At least the ends of the rod parts near the bend joint can be hollow and the end pieces can be pushed on for sheltered accommodation and easy assembly, at least one of the rod parts being held acceptably on the end piece via a clamping sleeve, in order to facilitate tension adjustment.
  • the lower part of the rod can have an external thread, which is preferably a steep thread, to secure it against being pulled out and as an insertion aid.
  • anchoring projections can be spread over the thread approximately transversely to the rod axis, expediently barb-like, so that insertion into the snow is possible with little resistance, but pulling out is opposed to considerable resistance.
  • the anchoring projections can be spread over the thread or can be brought into contact with the rod.
  • a spreading cone is expediently provided for this purpose, concentrically with the thread, by means of which spreading arms carrying the anchoring projections can be moved from their assembly and disassembly position into their use position.
  • the spreading arms can be designed in a tongue-like manner in a particularly simple manner and yet very effectively, the ends of the spreading arms then emitting the anchoring projections.
  • the spreading arms can be arranged in the extension of a threaded bush which can be screwed onto the thread. Due to their own elasticity, the spreading arms always rest on the spreading cone, whereby three to six spreading arms can expediently be provided, which are made in one piece with the threaded bushing in an extension of the latter from plastic.
  • the exemplary embodiments of a safety slalom rod shown in the figures have a tubular rod upper part 1 and rod lower part 2.
  • the upper rod part 1 is closed by a closure cap 3, while the lower end of the lower rod part 2 is closed by an inserted tip 4.
  • the rod parts 1 and 2 are each attached to an end piece 5, 5 ', the lower part 2 of the rod being held removably on the end piece 5' by a clamping sleeve 6 in the exemplary embodiment.
  • the lower rod part 2 can be provided with an external thread 7 over its entire length or part of its length.
  • the rod parts 1 and 2 can be made of thermoplastic, preferably polycarbonate tubes, to save weight. Glass fiber material or aluminum tube can also be used for particularly resistant and elastic safety slalom rods.
  • each bending joint 8 is formed by two joint bodies 9 i to 9 s .
  • the joint bodies 9 2 to 9 5 are designed as identical cylindrical disks which have a recess 10 on the one hand and a corresponding projection 11 on the other hand.
  • the recesses 10 and the projections 11 are rotationally symmetrical, the edges 12 of the projections 11 projecting into the recesses 10 being rounded.
  • the recess 10 are somewhat deeper than the height of the projections 11, so that the joint bodies 9 can abut one another on their abutment surfaces 13.
  • the end pieces 5 and 5 ' are connected in one piece to the outer joint bodies 9 1 and 9 6 and are likewise of circular cylindrical design.
  • Both the end pieces 5, 5 'and all of the joint bodies 9 have a central bore 14, 14', 14 "through which a flexible tendon, only partially shown in FIG. 1, in the form of a rope, preferably a wire rope or a wire, is passed
  • both ends of the flexible bracing element 15 are held in threaded bolts 16, 16 '.
  • the threaded bolts 16, 16' are guided through spring plates 17, 17 ', at least the lower threaded bolt 16' being adjustable relative to the spring plate 17 'via an adjusting nut 18 and thus releases a tensioning device 19, by means of which the pretensioning of the flexible tensioning member 15 can be set, a spring 20 or 20 'in the form of a helical compression spring being arranged between the end piece 5 or 5' and the spring plate 17 or 17 '
  • the inside diameter of the springs 20, 20 ' is somewhat smaller than the inside diameter of the rod parts 1 and 2.
  • the safety slalom rod can bend at one or more of the bending joints 8 and it is brought back into its extended starting position by the biasing force of the springs 20, 20 'via the tensioned flexible tendon 15.
  • the arrangement of many bending joints 8 results in strong vibration damping, so that the extended rest position is reached again in a very short time after a deflection without reverberation.
  • a threaded bushing 21 is placed on the thread 7 and has four spreading arms 22 extended downward, at the end of which a hook-like anchoring projection 23 is provided in each case.
  • the spreading arms 22 rest on an expansion cone 24 arranged in an extension of the thread 7 and thus form an anchoring device 25, which is shown in the assembly position in FIG. 4.
  • the thread 7 is screwed into the threaded bushing 21 by rotating the lower rod part 2, as a result of which the spreading arms 22 are pressed outward by the expansion cone 24, so that the anchoring projections 23 become caught in the snow base.
  • the rod lower part 2 projects beyond the thread 7 approximately by the screw length.
  • the threaded bushing 21, the spreading arms 22 and the anchoring projections 23 are made in one piece from plastic, this plastic having sufficient inherent elasticity that when the thread 7 is unscrewed the arms 22 always bear resiliently on the expanding cone 24.
  • the expansion cone 24 is arranged above the thread 7 on the lower rod part 2.
  • the spreader arms 22 rest against the spreader cone 24, while in the anchored state, the spreader arms 22 protrude beyond the circumference of the rod by screwing the threaded bushing 21.
  • the ends of the spreading arms 22 then release the anchoring projections 23.
  • about three to six spreader arms are connected in one piece to the threaded bushing 21.
  • the ends of the spreading arms 22 are designed to be wide in accordance with the circumference of the rod in order to achieve the best possible anchoring in the snow.
  • the thread 7 is not guided all the way to the end of the rod.
  • the thread end can be an inserted, somewhat larger tip 4 made of plastic or metal.

Abstract

1. Safety slalom pole with a lower pole portion (2) insertible into ground, said lower pole portion being connected with an upper pole portion (1) by means of a pivot joint such that it can be bent off elastically in a spring-loaded manner, whereby the pivot joint at least comprises two rotation symmetrical pivot bodies (9), which abut each other in resting position mutually centered on abutment surfaces (13) extending rectangularly to the pole axis, whereby further at least on flexible tensioning member (15) extends through the pivot bodies (9), said tensioning member (15) axially tension-connecting the pivot bodies to each other by means of a spring (20, 20'), characterized in that the pivot joint is formed by at least two spaced bending joints (81 to 85 ), whereby each joint (81 to 85 ) is formed by two pivot bodies (9), and that all bending joints (81 to 85 ) are tensioned to eachother, one after the other, by means of a common tensioning device (19) and in that for this purpose the flexible tensioning member or members (15) respectively are extending through all pivot bodies (9).

Description

Die Erfindung betrifft einen Sicherheitsslalomstab mit einem in den Untergrund steckbaren Stangenünterteil, der über ein Gelenk mit einem Stangenoberteil elastisch federnd abbiegbar verbunden ist, wobei das Gelenk mindestens zwei rotationssymmetrische Gelenkkörper aufweist, die in Ruhelage in ihrer gegenseitigen Lage zueinander zentriert an senkrecht zur Stabachse gerichteten Anlageflächen aneinander anliegen, wobei ferner durch die Gelenkkörper mindestens ein flexibles Spannglied geführt ist, durch das sie über mindestens eine Feder miteinander axial verspannt sind. Ein aus der DE-OS 2 428 659 bekannter solcher Sicherheits-Slalomstab weist ein einziges Biegegelenk auf. Bei der Verwendung muss dieser Slalomstab in exakter Tiefe in den Schnee eingesetzt werden, wobei das Gelenk zur möglichsten Vermeidung von Verletzungen möglichst unterhalb der Schneeoberfläche angebracht werden sollte. Bei einem zu tiefen Einsetzen oder sehr hartem Schnee wird hierdurch aber durch den Schnee über dem Gelenk ein Auspendeln behindert.The invention relates to a safety slalom rod with a rod bottom part which can be plugged into the ground and which is elastically and elastically bendably connected via a joint to a rod upper part, the joint having at least two rotationally symmetrical joint bodies which, in the rest position, are centered in their mutual position on contact surfaces oriented perpendicular to the rod axis abut each other, wherein at least one flexible tendon is also guided through the joint body, through which they are axially clamped together via at least one spring. A safety slalom rod known from DE-OS 2 428 659 has a single flexure. When used, this slalom pole must be inserted into the snow at an exact depth, whereby the joint should be attached as far as possible below the snow surface to avoid possible injuries. If it is inserted too deeply or the snow is very hard, this will prevent the snow from swinging out over the joint.

Aus der FR-A 20 44 032 ist noch ein Sicherheits-Slalomstab mit mehreren in relativ grossem Abstand zueinander angeordneten Gelenken bekannt. Hier besteht die Gefahr, dass beim Anschlagen des Slalomstabs insbesondere der oberste Stabteil zurückschlägt, es können dadurch leicht Gesichtsverletzungen entstehen. Im übrigen weist dieser bekannte Stab die gleichen Nachteile auf, wie bei der vorbeschriebenen Konstruktion.From FR-A 20 44 032 a safety slalom bar with several joints arranged at a relatively large distance from one another is known. There is a risk here that when the slalom stick is struck, the uppermost part of the stick will kick back, which can easily cause facial injuries. Otherwise, this known rod has the same disadvantages as in the construction described above.

Schliesslich ist aus der DE-A 29 02 082 noch ein Slalomstab bekannt, bei dem das einzige vorgesehene Gelenk durch einen Gummischlauch gebildet wird. An und für sich ist diese Gelenkausbildung sehr einfach. Nachteilig ist, dass die Elastizitätseigenschaften des Gummis stark temperaturabhängig sind und der Gummischlauchdurch die scharfen Schikanten leicht beschädigt wird, so dass die Lebensdauer solcher Slalomstangen stark begrenzt ist.Finally, a slalom rod is known from DE-A 29 02 082, in which the only joint provided is formed by a rubber tube. In itself, this joint training is very simple. It is disadvantageous that the elastic properties of the rubber are strongly temperature-dependent and the rubber hose is easily damaged by the sharp ski edges, so that the service life of such slalom poles is severely limited.

In Vermeidung dieser Nachteile liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Sicherheitsslalomstab der eingangs genannten Art so zu verbessern, dass er nach einer Auslenkung nur kurz ausschwingt und gleichzeitig grössere Abweichungen in der Einstecktiefe in den Untergrund zulässt, ohne Gefährdung der Sportler.In avoiding these disadvantages, the object of the present invention is to improve a safety slalom stick of the type mentioned at the outset such that it swings out only briefly after a deflection and at the same time permits greater deviations in the insertion depth into the ground, without endangering the athletes.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, dass das Gelenk durch mindestens zwei im Abstand voneinander angeordnete Biegegelenke gebildet ist, wobei jedes Biegegelenk durch zwei Gelenkkörper gebildet ist, und dass alle Biegegelenke über eine gemeinsame Spannvorrichtung hintereinanderliegend miteinander verspannt sind und hierzu durch alle Gelenkkörper das bzw. die flexiblen Spannglieder geführt sind.To achieve this object, the invention provides that the joint is formed by at least two bending joints arranged at a distance from one another, each bending joint being formed by two joint bodies, and that all bending joints are braced one behind the other via a common tensioning device and for this purpose by all joint bodies or the flexible tendons are guided.

Durch die Anordnung mehrerer Biegegelenke erfolgt einmal eine starke Schwingungsdämpfung, so dass sich der Stab relativ rasch wieder aufrichtet und still steht. Weiter kann durch die Erstrekkung der Biegegelenke über eine grössere Länge der Sicherheitsslalomstab mit relativ grosser Toleranz eingesetzt werden, ohne dass die Gefahr einer Verletzung des Sportlers durch den fest verankerten Stabunterteil besteht. Ein weiteres Eintreiben bei Abfahren auch einer dickeren Schneeschicht erübrigt sich hierdurch ebenfalls.The arrangement of several bending joints results in strong vibration damping, so that the rod straightens up relatively quickly and stands still. Furthermore, by extending the bending joints over a greater length, the safety slalom rod can be used with a relatively large tolerance without there being any risk of injury to the athlete through the firmly anchored lower part of the rod. A further driving in when driving down even a thicker layer of snow is also unnecessary.

In besonders vorteilhafter Weise kann eine Anpas- sung an unterschiedliche Pistenverhältnisse in besonders einfacher Weise dadurch ermöglicht werden, dass die Gelenkkörper zwischen Endstücken angeordnet und die Endstücke mit dem Stangenunterteit bzw. dem Stangenoberteil verbunden sind, und dass in an sich bekannter Weise auch die Endstücke vom flexiblen Spannglied durchdrungen sind und dass sich an mindestens einem der Endstücke die Feder abstützt, wobei als Feder eine Druckfeder dient, durch die hindurch das flexible Spannglied geführt und über einen Federteller gehalten ist, wobei ferner die Vorspannung der Feder einstellbar ist und dazu als flexibles Spannglied ein Seil oder Draht dient, von dem mindestens ein Ende in einem Gewindebolzen verstellbar gegenüber dem Federteller gehalten ist.In a particularly advantageous manner, to p can as- solution to different snow conditions in a particularly simple manner be possible by the fact that the joint body between end pieces arranged and the end pieces with the Stangenunterteit or the rod upper part are connected, and that in per se known manner, the End pieces are penetrated by the flexible tendon and that the spring is supported on at least one of the end pieces, with a compression spring serving as the spring, through which the flexible tendon is guided and held by a spring plate, the prestressing of the spring also being adjustable and for this purpose as Flexible tendon is a rope or wire, of which at least one end is held adjustable in a threaded bolt relative to the spring plate.

Die Relativbewegung des Spanngliedes in den Gelenkkörpern kann dadurch klein gehalten werden, dass symmetrisch zwei Federn vorgesehen sind und dass die Federn jeweils zwischen einem der Endstücke und einem Federteller vorgesehen sind.The relative movement of the tendon in the joint bodies can be kept small in that two springs are provided symmetrically and that the springs are each provided between one of the end pieces and a spring plate.

Weiter können zur geschützten Unterbringung und zur einfachen Montage mindestens die biegegelenknahen Enden der Stangenteile hohl ausgebildet und die Endstücke aufgeschoben sein, wobei mindestens eines der Stangenteile über eine Spannhülse annehmbar auf dem Endstück gehalten ist, um so eine Spannungseinstellung zu erleichtern.Furthermore, at least the ends of the rod parts near the bend joint can be hollow and the end pieces can be pushed on for sheltered accommodation and easy assembly, at least one of the rod parts being held acceptably on the end piece via a clamping sleeve, in order to facilitate tension adjustment.

Der Stangenunterteil kann zur Sicherung gegen Herausziehen und als Einsteckhilfe ein Aussengewinde aufweisen, das vorzugsweise ein Steilgewinde ist.The lower part of the rod can have an external thread, which is preferably a steep thread, to secure it against being pulled out and as an insertion aid.

Zur besseren Verankerung des Sicherheitsslalomstabs können über das Gewinde Verankerungsvorsprünge etwa quer zur Stabachse abspreizbar sein, zweckmässigerweise widerhakenartig, so dass ein Einsetzen in den Schnee mit geringem Widerstand möglich ist, aber einem Herausziehen erheblicher Widerstand entgegengesetzt wird. Zum Erleichtern des Einsetzens und Herausziehens können die Verankerungsvorsprünge über das Gewinde agbespreizt oder an der Stange zur Anlage bringbar sein. Zweckmässigerweise ist hierzu konzentrisch zum Gewinde ein Spreizkegel vorgesehen, über den die Verankerungsvorsprünge tragende Spreizarme von einer Montage-und Demontagestellung in ihre Gebrauchsstellung bewegbar sind.For better anchoring of the safety slalom rod, anchoring projections can be spread over the thread approximately transversely to the rod axis, expediently barb-like, so that insertion into the snow is possible with little resistance, but pulling out is opposed to considerable resistance. To facilitate insertion and removal, the anchoring projections can be spread over the thread or can be brought into contact with the rod. A spreading cone is expediently provided for this purpose, concentrically with the thread, by means of which spreading arms carrying the anchoring projections can be moved from their assembly and disassembly position into their use position.

Besonders einfach herstellbar und doch sehr wirksam können die Spreizarme zungenartig ausgebildet sein, wobei dann die Enden der Spreizarme die Verankerungsvorsprünge abgeben. Die Spreizarme können dazu in Verlängerung einer auf dem Gewinde schraubbaren Gewindebüchse angeordnet sein. Durch Eigenelastizität liegen die Spreizarme stets am Spreizkegel an, wobei zweckmässigerweise drei bis sechs Spreizarme vorgesehen sein können, die einstückig mit der Gewindebüchse in Verlängerung dieser aus Kunststoff bestehen.The spreading arms can be designed in a tongue-like manner in a particularly simple manner and yet very effectively, the ends of the spreading arms then emitting the anchoring projections. For this purpose, the spreading arms can be arranged in the extension of a threaded bush which can be screwed onto the thread. Due to their own elasticity, the spreading arms always rest on the spreading cone, whereby three to six spreading arms can expediently be provided, which are made in one piece with the threaded bushing in an extension of the latter from plastic.

Weitere erfindungsgemässe Ausbildungen sind den Unteransprüchen zu entnehmen und werden mit ihren Vorteilen in der nachstehenden Beschreibung näher erläutert. In den beigefügten Zeichnungen zeigt:

  • Fig. 1 eine Explosionsdarstellung der Anordnung von Biegegelenken ohne Stangenunterteil und Stangenoberteil,
  • Fig. 2 eine Zusammenstellzeichnung eines Sicherheitsslalomstabs mit noch nicht montierter Verschlusskappe und Spitze und noch nicht montiertem Stangenunterteil,
  • Fig. 3 eine Ansicht eines montierten Sicherheitsslalomstabs, bei dem der Stangenunterteil teilweise mit einem Gewinde versehen ist,
  • Fig. 4 eine Seitenansicht einer unteren Spitze einer anderen Ausführungsform eines Sicherheitsslalomstabs mit einer Verankerungsvorrichtung, teilweise im Schnitt und
  • Fig. 5 eine andere Ausführungsform einer Verankerungsvorrichtung, links in Montage- und Demontagestellung und rechts in Verankerungsstellung.
Further designs according to the invention are the subclaims and their advantages are explained in more detail in the description below. In the accompanying drawings:
  • 1 is an exploded view of the arrangement of flexible joints without rod lower part and upper rod part,
  • 2 is an assembly drawing of a safety slalom rod with a cap and tip that has not yet been fitted and a rod lower part that has not yet been assembled,
  • 3 shows a view of an assembled safety slalom rod, in which the lower part of the rod is partially provided with a thread,
  • Fig. 4 is a side view of a lower tip of another embodiment of a safety slalom bar with an anchoring device, partially in section and
  • Fig. 5 shows another embodiment of an anchoring device, on the left in the assembly and disassembly position and on the right in the anchoring position.

Die in den Figuren dargestellten Ausführungsbeispiele eines Sicherheitsslalomstabs weisen einen rohrförmigen Stangenoberteil 1 und Stangenunterteil 2 auf. Der Stangenoberteil 1 ist durch eine Verschlusskappe 3 verschlossen, während das untere Ende des Stangenunterteils 2 durch eine eingesteckte Spitze 4 verschlossen ist.The exemplary embodiments of a safety slalom rod shown in the figures have a tubular rod upper part 1 and rod lower part 2. The upper rod part 1 is closed by a closure cap 3, while the lower end of the lower rod part 2 is closed by an inserted tip 4.

Die Stangenteile 1 und 2 sind jeweils auf ein Endstück 5, 5' aufgesteckt, wobei im Ausführungsbeispiel der Stangenunterteil 2 durch eine Spannhülse 6 abnehmbar auf dem Endstück 5' gehalten ist.The rod parts 1 and 2 are each attached to an end piece 5, 5 ', the lower part 2 of the rod being held removably on the end piece 5' by a clamping sleeve 6 in the exemplary embodiment.

Als Herausziehsicherung und gleichzeitig auch als Einsteckhilfe kann der Stangenunterteil 2 über seine ganze Länge oder einen Teil seiner Länge mit einem Aussengewinde 7 versehen sein. Die Stangenteile 1 und 2 können zur Gewichtseinsparung aus thermoplastischem Kunststoff, vorzugsweise aus Polycarbonatrohren, bestehen. Für besonders widerstandsfähige und elastische Sicherheitsslalomstäbe kann aber auch Glasfibermaterial oder auch Aluminiumrohr verwendet werden.As a pull-out protection and at the same time as an insertion aid, the lower rod part 2 can be provided with an external thread 7 over its entire length or part of its length. The rod parts 1 and 2 can be made of thermoplastic, preferably polycarbonate tubes, to save weight. Glass fiber material or aluminum tube can also be used for particularly resistant and elastic safety slalom rods.

Zwischen den Stangenteilen 1 und 2 sind mehrere Biegegelenke 8, im dargestellten Ausführungsbeispiel fünf Biegegelenke 81 bis 85 vorgesehen. Jedes Biegegelenk 8 wird durch zwei Gelenkkörper 9i bis 9s gebildet. Im Ausführungsbeispiel sind die Gelenkkörper 92 bis 95 als identische zylindrische Scheiben ausgebildet, die einerseits eine Ausnehmung 10 und andererseits einen entsprechenden Vorsprung 11 aufweisen. Die Ausnehmungen 10 und die Vorsprünge 11 sind rotationssymmetrisch, wobei die in die Ausnehmungen 10 ragenden Kanten 12 der Vorsprünge 11 gerundet sind. Die Ausnehmung 10 sind etwas tiefer als die Höhe der Vorsprünge 11, so dass die Gelenkkörper 9 stirnseitig an ihren Anlageflächen 13 aneinanderliegen können.Between the rod parts 1 and 2, a plurality of bending joints 8, five bending joints 8 1 to 8 5 are provided in the exemplary embodiment shown. Each bending joint 8 is formed by two joint bodies 9 i to 9 s . In the exemplary embodiment, the joint bodies 9 2 to 9 5 are designed as identical cylindrical disks which have a recess 10 on the one hand and a corresponding projection 11 on the other hand. The recesses 10 and the projections 11 are rotationally symmetrical, the edges 12 of the projections 11 projecting into the recesses 10 being rounded. The recess 10 are somewhat deeper than the height of the projections 11, so that the joint bodies 9 can abut one another on their abutment surfaces 13.

Einstückig an die aussenliegenden Gelenkkörper 91 und 96 sind die Endstücke 5 bzw. 5' angeschlossen, die ebenfalls kreiszylindrisch ausgebildet sind.The end pieces 5 and 5 'are connected in one piece to the outer joint bodies 9 1 and 9 6 and are likewise of circular cylindrical design.

Sowohl die Endstücke 5, 5' als auch alle Gelenkkörper 9 weisen eine Mittenbohrung 14, 14', 14" auf, durch die ein nur teilweise in Fig. 1 dargestelltes flexibles Spannglied in Form eines Seils, vorzugsweise eines Drahtseils oder eines Drahts, hindurchgeführt ist. Im Ausführungsbeispiel sind beide Enden des flexiblen Verspannglieds 15 in Gewindebolzen 16, 16' gehalten. Die Gewindebolzen 16, 16' sind durch Federteller 17, 17' geführt, wobei mindestens der untere Gewindebolzen 16' über eine Stellmutter 18 gegenüber dem Federteller 17' verstellbar ist und so eine Spannvorrichtung 19 abgibt, über die die Vorspannung des flexiblen Spannglieds 15 einstellbar ist. Dabei ist zwischen dem Endstück 5 bzw. 5' und dem Federteller 17 bzw. 17' jeweils eine Feder 20 bzw. 20' in Form einer Wendeldruckfeder angeordnet. Der Innendurchmesser der Federn 20, 20' ist etwas kleiner als der Innendurchmesser der Stangenteile 1 und 2. Bei einer Querbelastung des Stangenoberteils 1 kann der Sicherheitsslalomstab an einem oder mehreren der Biegegelenke 8 abknicken und er wird durch die Vorspannkraft der Federn 20, 20' über das gespannte flexible Spannglied 15 wieder in seine gestreckte Ausgangslage zurückgebracht. Durch die Anordnung vieler Biegegelenke 8 erfolgt eine starke Schwingungsdämpfung, so dass die gestreckte Ruhelage nach einer Auslenkung in sehr kurzer Zeit wieder ohne Nachschwingen erreicht wird.Both the end pieces 5, 5 'and all of the joint bodies 9 have a central bore 14, 14', 14 "through which a flexible tendon, only partially shown in FIG. 1, in the form of a rope, preferably a wire rope or a wire, is passed In the exemplary embodiment, both ends of the flexible bracing element 15 are held in threaded bolts 16, 16 '. The threaded bolts 16, 16' are guided through spring plates 17, 17 ', at least the lower threaded bolt 16' being adjustable relative to the spring plate 17 'via an adjusting nut 18 and thus releases a tensioning device 19, by means of which the pretensioning of the flexible tensioning member 15 can be set, a spring 20 or 20 'in the form of a helical compression spring being arranged between the end piece 5 or 5' and the spring plate 17 or 17 ' The inside diameter of the springs 20, 20 'is somewhat smaller than the inside diameter of the rod parts 1 and 2. If the rod top part 1 is loaded transversely, the safety slalom rod can bend at one or more of the bending joints 8 and it is brought back into its extended starting position by the biasing force of the springs 20, 20 'via the tensioned flexible tendon 15. The arrangement of many bending joints 8 results in strong vibration damping, so that the extended rest position is reached again in a very short time after a deflection without reverberation.

Beim in Fig. 4 dargestellten Ausführungsbeispiel ist auf dem Gewinde 7 eine Gewindebüchse 21 aufgesetzt, die nach unten verlängert vier Spreizarme 22 aufweist, an deren Ende jeweils ein hakenartig nach aussen stehender Verankerungsvorsprung 23 vorgesehen ist. Die Spreizarme 22 liegen auf einem in Verlängerung zum Gewinde 7 angeordneten Spreizkegel 24 auf und bilden so eine Verankerungsvorrichtung 25, die in der Montagestellung in Fig. 4 dargestellt ist. Nach dem Eindrücken der Spitze 4 in den Schneeuntergrund wird durch Drehen des Stangenunterteils 2 das Gewinde 7 in die Gewindebüchse 21 eingedreht, wodurch die Spreizarme 22 durch den Spreizkegel 24 nach aussen gepresst werden, so dass sich die Verankerungsvorsprünge 23 im Schneeuntergrund verhaken. Um ein Blockieren des Gewindes 7 zu verhindern, überragt der Stangenunterteil 2 das Gewinde 7 etwa um die Schraublänge. Die Gewindebüchse 21, die Spreizarme 22 und die Verankerungsvorsprünge 23 sind einstückig aus Kunststoff hergestellt, wobei dieser Kunststoff eine ausreichende Eigenelastizität aufweist, dass beim Zurückschrauben des Gewindes 7 die Arme 22 stets am Spreizkegel 24 federnd anliegen.In the exemplary embodiment shown in FIG. 4, a threaded bushing 21 is placed on the thread 7 and has four spreading arms 22 extended downward, at the end of which a hook-like anchoring projection 23 is provided in each case. The spreading arms 22 rest on an expansion cone 24 arranged in an extension of the thread 7 and thus form an anchoring device 25, which is shown in the assembly position in FIG. 4. After the tip 4 has been pressed into the snow base, the thread 7 is screwed into the threaded bushing 21 by rotating the lower rod part 2, as a result of which the spreading arms 22 are pressed outward by the expansion cone 24, so that the anchoring projections 23 become caught in the snow base. In order to prevent the thread 7 from blocking, the rod lower part 2 projects beyond the thread 7 approximately by the screw length. The threaded bushing 21, the spreading arms 22 and the anchoring projections 23 are made in one piece from plastic, this plastic having sufficient inherent elasticity that when the thread 7 is unscrewed the arms 22 always bear resiliently on the expanding cone 24.

Ähnlich ist die Funktion des Ausführungsbeispiels der Fig. 5. Hier ist allerdings der Spreizkegel 24 oberhalb des Gewindes 7 am Stangenunterteil 2 angeordnet. Im links dargestellten Montagezustand liegen die Spreizarme 22 am Spreizkegel 24 an, während im Verankerungszustand durch Verschrauben der Gewindebüchse 21 die Spreizarme 22 über den Stangenumfang hinausragen. Dabei geben dann die Enden der Spreizarme 22 die Verankerungsvorsprünge 23 ab. Zweckmässigerweise sind etwa drei bis sechs Spreizarme einstückig an der Gewindebüchse 21 angeschlossen. Die Enden der Spreizarme 22 sind entsprechend dem Stangenumfang breit ausgebildet, um eine möglichst gute Verankerung im Schnee zu erreichen. Um ein vollständiges Herausschrauben der Gewindebüchse 21 aus dem Gewinde 7 zu verhindern, ist das Gewinde 7 nicht ganz bis zum Stangenende geführt. Das Gewindeende kann durch eine eingesetzte, im Durchmesser etwas grössere Spitze 4 aus Kunststoff oder auch aus Metall gebildet sein.The function of the exemplary embodiment of FIG. 5 is similar. Here, however, the expansion cone 24 is arranged above the thread 7 on the lower rod part 2. In the assembly state shown on the left, the spreader arms 22 rest against the spreader cone 24, while in the anchored state, the spreader arms 22 protrude beyond the circumference of the rod by screwing the threaded bushing 21. The ends of the spreading arms 22 then release the anchoring projections 23. Advantageously, about three to six spreader arms are connected in one piece to the threaded bushing 21. The ends of the spreading arms 22 are designed to be wide in accordance with the circumference of the rod in order to achieve the best possible anchoring in the snow. In order to prevent the threaded bushing 21 from being completely unscrewed from the thread 7, the thread 7 is not guided all the way to the end of the rod. The thread end can be an inserted, somewhat larger tip 4 made of plastic or metal.

Claims (10)

1. Safety slalom pole with a lower pole portion (2) insertible into ground, said lower pole portion beeing connected with an upper pole portion (1) by means of a pivot joint such that it can be bent off elastically in a spring-loaded manner, whereby the pivot joint at least comprises two rotation symmetrical pivot bodies (9), which abut each other in resting position mutually centered on abutment surfaces (13) extending rectangularly to the pole axis, whereby further at least on flexible tensioning member (15) extends through the pivot bodies (9), said tensioning member (15) axially tension-connecting the pivot bodies to each other by means of a spring (20, 20'), characterized in that the pivot joint is formed by at least two spaced bending joints (81 to 85), whereby each joint (81 to 8a) is formed by two pivot bodies (9), and that all bending joints (81 to 85) are tensioned to eachother, one after the other, by means of a common tensioning device (19) and in that for this purpose the flexible tensioning member or members (15) respectively are extending through all pivot bodies (9).
2. Safety slalom pole in accordance to claim 1, characterized in that as centering means there is provided at the pivot bodies (9) a cylindrical recess (10) cooperating with a corresponding boss (11).
3. Safety slalom pole in accordance to claim 1 or 2, characterized in that the pivot bodies (9) are provided between end pieces (5, 5') and that the end pieces (5,-5') are connected with the lower pole portion (2) orthe upper pole portion (1) respectively, and that, as per se known, the flexible tensioning member (15) also extends through the end pieces (5, 5'), and that the spring (20 or 20' resp.) is supported on at least one of the end pieces (5, 5'), whereby a compression spring serves as spring (20, 20'), through which the flexible tensioning member (15) extends and is hold by a spring cap, and further in that the bias tension of the spring (20, 20') is adjustable and for this purpose a rope or wire serves as flexible tensioning member (15), of which at least one end is hold adjustable with respect to the spring cap (17, 17') in a threaded bolt (16, 16').
4. Safety slalom pole in accordance to claim 3, characterized in that symmetrically two springs (20, 20') are provided and in that the springs (20, 20') are provided between one of the end pieces (5, 5') and one spring cap (17, 17') respectively.
5. Safety slalom pole in accordance to claim 3 or 4, characterized in that at least the ends of the pole portions (1, 2), which are adjacent to the bending joint, are hollow and are slipped upon the end pieces (5,5'), and in that at least one of the pole portions (1, 2) is detachably held on the end piece (5') by a tensioning sleeve (6).
6. Safety slalom pole in accordance to one of claims 1 to 5, characterized in that the lower pole portion (2) is provided with a thread (71.
7. Safety slalom pole in accordance to claim 2, characterized in that the edge (rim 12) of the boss (11) of the pivot body (9) extending to recess (10) is rounded.
8. Safety slalom pole in accordance to claim 6, characterized in that the thread (7) anchoring projections (23) can be spread off transversaly to the pole axis, and in that for this purposes a spreading cone (24) is provided concentrically to the thread (7), and that by means of said spreading cone spreading arms (22) carrying the anchoring projections can be moved.
9. Safety slalom pole in accordance to claim 8, characterized in that the spreading arms (2) are formed like tongues and that the ends of these spreading arms (22) serve as anchoring projections (23), whereby the spreading arms (22) are formed in extension of a threaded sleeve (21) screwed to the thread (7).
10. Safety slalom pole in accordance to claim 8 or 9, characterized in that the threaded sleeve (21), the spreading arms (22) and the anchoring projections (23) are integrally formed from plastic material.
EP82102438A 1981-04-18 1982-03-24 Safety slalom pole Expired EP0063254B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102438T ATE14080T1 (en) 1981-04-18 1982-03-24 SAFETY SLALOM STAFF.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813115741 DE3115741A1 (en) 1981-04-18 1981-04-18 SECURITY SLALOM BAR
DE3115741 1981-04-18

Publications (2)

Publication Number Publication Date
EP0063254A1 EP0063254A1 (en) 1982-10-27
EP0063254B1 true EP0063254B1 (en) 1985-07-03

Family

ID=6130454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102438A Expired EP0063254B1 (en) 1981-04-18 1982-03-24 Safety slalom pole

Country Status (4)

Country Link
EP (1) EP0063254B1 (en)
JP (1) JPS57180974A (en)
AT (1) ATE14080T1 (en)
DE (2) DE3115741A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010004408A1 (en) 2010-01-13 2011-07-14 Maltan, Peter, 83483 Device for measuring the mean time of a ski racer

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100951B1 (en) * 1982-07-28 1987-10-07 Straub Federnfabrik Ag Tilting stick
AT385676B (en) * 1984-08-08 1988-05-10 Hinterreiter Ignaz TILTING ROD TO MARK SLALOM TRACKS
ATE49897T1 (en) * 1984-09-03 1990-02-15 Hans Hinterholzer GATE ROD.
DE3803150A1 (en) * 1987-08-10 1989-02-23 Hans Hinterholzer Slalom pole
EP0385295A1 (en) * 1989-02-27 1990-09-05 Hans Hinterholzer Slalom post
AT397926B (en) * 1990-06-27 1994-08-25 Kenda Josef Slalom pole
SE510645C2 (en) * 1997-07-17 1999-06-14 Componova Ab Anchoring device for a slalom wrap
ITBZ20120002A1 (en) * 2012-01-30 2013-07-31 Hartwig Kamelger ANCHORAGE DEVICE FOR DELIMITATION AND DOOR STOVES.
CN103272380B (en) * 2013-05-15 2015-09-16 江苏金陵体育器材股份有限公司 For the corner flag in football pitch

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Publication number Priority date Publication date Assignee Title
CH142477A (en) * 1929-12-21 1930-09-30 Amstutz Max Marking out field characters.
FR2044032A5 (en) * 1969-05-06 1971-02-19 See Jacques
DE2428659A1 (en) * 1974-06-14 1976-01-02 Ralf Brangenberg Impact-absorbing ski slalom post - allowing observer to see whether skier has passed through gate correctly and preventing injury to skier
DE2749054A1 (en) * 1977-11-02 1979-05-03 Gregg Helmuth Fastening dowel and screw for ceiling panels - has split conical socket dowel and expansion screw with taper point
DE2902082C2 (en) * 1979-01-19 1985-11-21 Sebastian 8263 Burghausen Haunberger Marker pole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010004408A1 (en) 2010-01-13 2011-07-14 Maltan, Peter, 83483 Device for measuring the mean time of a ski racer
EP2345464A2 (en) 2010-01-13 2011-07-20 Peter Maltan Device for measuring the interval of a ski racer

Also Published As

Publication number Publication date
DE3264511D1 (en) 1985-08-08
EP0063254A1 (en) 1982-10-27
JPS57180974A (en) 1982-11-08
DE3115741A1 (en) 1982-11-04
ATE14080T1 (en) 1985-07-15

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