EP0215771B1 - Foldable walking-stick - Google Patents

Foldable walking-stick Download PDF

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Publication number
EP0215771B1
EP0215771B1 EP19860890252 EP86890252A EP0215771B1 EP 0215771 B1 EP0215771 B1 EP 0215771B1 EP 19860890252 EP19860890252 EP 19860890252 EP 86890252 A EP86890252 A EP 86890252A EP 0215771 B1 EP0215771 B1 EP 0215771B1
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EP
European Patent Office
Prior art keywords
stick
tube part
walking
straddling
region
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.)
Expired - Lifetime
Application number
EP19860890252
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German (de)
French (fr)
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EP0215771A3 (en
EP0215771A2 (en
Inventor
Herbert Ing. Lindner
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Individual
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Individual
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Publication of EP0215771A3 publication Critical patent/EP0215771A3/en
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A45B2009/005—Shafts
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A45B2009/005—Shafts
    • A45B2009/007—Shafts of adjustable length, e.g. telescopic shafts

Definitions

  • the invention relates to a collapsible walking stick with a handle, in particular a hiking stick, mountain stick or the like, which consists of a plurality of pipe parts which can be plugged into one another, two pipe parts being connected to a continuously adjustable locking mechanism for adjusting the total length of the stick.
  • Such sticks are easy to disassemble and can then be accommodated in a relatively small case. Because of the different heights of the people carrying a stick, these sticks have to be produced with different overall lengths, which increases the manufacturing effort. In addition, it has been shown that the total length of a stick, for example when walking uphill, should be smaller than when walking downhill, ie two sticks of different overall length should actually be used. From GB-A 2 078 508 a stick of the type described above is known, which meets this requirement, in that the stick consists of an upper tube part with a handle and a lower tube part which is slidably inserted in the upper tube part and has a locking mechanism , so that the total length of the stick can be adjusted and fixed, etc.
  • the stick still occupies a relatively large space in the shortest state.
  • the lower end of the upper tube part is flared to lock the stick and encloses a rubber ring, which is squeezed into the tapered end of the conical space when pressure is exerted on the upper tube and fixes the two tube parts against one another, while when it is pulled onto the inner tube it reaches the expanded end of the conical space so that the two tube parts can be pulled apart.
  • the disadvantage of this construction is that the rubber ring comes to the tapered end of the conical space when the tube parts are pushed together, thus hindering or making it difficult to push the tube parts together.
  • a walking stick consisting of two nested pipe parts is known, the length of which is gradually adjustable.
  • cross bores are provided in both pipe parts, through which a threaded pin with lock nut can be inserted.
  • a constant adjustment of the walking stick is also not possible.
  • the object of the invention is to provide a stick which, while avoiding the disadvantages of the known constructions described above, takes up a small space on the one hand when not in use and on the other hand is continuously adjustable and fixable in its entire length when in use.
  • the locking mechanism consists of an expansion dowel which is provided with an internal thread which can be brought into engagement with a threaded shaft at the end of the inserted tube part, the expansion dowel having wedge-shaped expansion arms in cross section, which with progressive engagement of the internal thread on the threaded shaft in a gap between the outer wall of the inserted pipe part and the inner wall of the inserted pipe part enveloping Penetrate pipe part.
  • Fig. 1, 1, 2 and 3 designate three, first, second and third pipe parts which can be plugged into one another, the pipe parts 1 and 2 being essentially cylindrical, while the pipe part 3 tapers conically towards the tip.
  • a fourth tube part 4, which carries the handle 5, is slidably inserted into the first tube part 1.
  • a rubber stub 6 is attached, which can be removed at any time, so that e.g. a steel tip (not shown) becomes free.
  • the rubber stubble 6 is used on normal roads, while the steel tip is suitable for terrain with ice and snow.
  • a snow plate (not shown) in the form of an articulated or spherical plate can also be fitted at any time, which adapts to the respective terrain.
  • the handle 5 can also be provided with a loop (not shown) so that the stick can be hung on the wrist if necessary.
  • the locking mechanism between the first tube part 1 and the fourth tube part 4 is that the end of the fourth tube part opposite the handle 5 carries an expansion anchor 7, preferably made of plastic or metal, which in the locked state has a rigid connection between the two tube parts 1 and 4, as will be explained later.
  • the end of the fourth pipe part 4 initially has a slightly conical area 8 which merges into a strongly conical area 9 and continues initially as a threaded shaft 10 and then as a threadless shaft 11 of smaller diameter than the thread.
  • a locking washer 12 or the like for example a resilient washer with internal teeth.
  • the expansion dowel 7 consists of an externally and internally conically shaped area which, for example, has four longitudinal slots 13 on the circumference, so that four expansion arms 14 are formed.
  • the outer cone is flatter than the inner cone, so that a wedge-shaped cross-section the spreading arms 13 are formed (FIG. 2).
  • the conical region of the expansion dowel 7 is adjoined by an essentially cylindrical region with an internal thread 15.
  • a protective cap 16 preferably made of plastic, is placed on the pipe part 1.
  • the first pipe part 1 has an end region with a reduced outer diameter which is essentially the same or slightly smaller than the inner diameter of the second pipe part 2.
  • the pipe part 3 has an outer diameter which is substantially the same or slightly smaller than the inner diameter of the third pipe part 3, with a circumferential groove 17 in the pipe part 2 as a stop serves for the pipe part 3.
  • a rubber cord 18 connects the pipe parts 1 to 3 with each other. The ends of the rubber cord 18 are fastened in the tube parts 1 and 3, the rubber cord 18 being under a slight prestress.
  • Fig. 5 shows the stick in the collapsed state
  • the fourth pipe part 4 is almost completely inserted into the first pipe part 1.
  • the pipe parts 1 to 3 are first put together, the prestressed rubber cord 18 having a supporting effect, whereupon the fourth pipe part 4 is pulled out of the first pipe part 1 with the handle 5 until the desired total length of the stick has been reached.
  • This takes place in the unlocked state of the locking mechanism, as shown in FIG. 2.
  • Ie the internal thread 15 of the expansion anchor 7 is located in the area of the threadless shaft 11.
  • the threaded shaft 10 comes into engagement with the internal thread 15 of the expansion anchor 7, the friction of the expansion arms 14 with the inner wall of the first pipe part 1 preventing rotation of the expansion anchor 7.
  • the maximum diameter of the expansion anchor 7 at the ends of the expansion arms 14 is greater than the inside diameter of the first pipe part 1 when the expansion anchor 7 is removed, so that the expansion arms 14 press resiliently against the inner wall of the first tube part 1 when the expansion anchor 7 is installed, thereby the friction is increased.
  • the expansion dowel 7 thus moves in the direction of the strongly conical region 9 of the fourth pipe part 4 until the ends of the wedge-shaped expansion arms 14 touch the transition between the strongly conical region 9 and the slightly conical region 8, then are expanded and into the Penetrate space between the slightly conical area 8 and the inner wall of the first tube part 1, so that the first tube part 1 is firmly wedged with the fourth tube part 4 and the stick is ready for use. If you want to dismantle the stick again or change the overall length, you only need to turn the fourth pipe part 4 in the opposite direction until the spreading arms 14 are outside the slightly conical area 8 of the first pipe part 1, or until the expansion anchor 7 again assumes the position shown in FIG. 2, the locking washer 14 preventing the expansion anchor 7 from detaching from the shaft 11.
  • the locking mechanism is provided between the first and fourth tubular parts 1 and 4.
  • the connection between the first and fourth tube parts 1 and 4 is designed as a plug connection and the rubber cord 18 connects the tube parts 4, 1 and 2.

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  • Mutual Connection Of Rods And Tubes (AREA)

Description

Die Erfindung betrifft einen zusammenlegbaren Gehstock mit Handgriff, insbesondere Wanderstock, Bergstock od.dgl., welcher aus mehreren, ineinandersteckbaren Rohrteilen besteht, wobei zur Verstellung der Gesamtlänge des Stockes zwei Rohrteile mit einem stetig verstellbaren Verriegelungsmechanismus verbunden sind.The invention relates to a collapsible walking stick with a handle, in particular a hiking stick, mountain stick or the like, which consists of a plurality of pipe parts which can be plugged into one another, two pipe parts being connected to a continuously adjustable locking mechanism for adjusting the total length of the stick.

Derartige Stöcke sind leicht zerlegbar und können dann in einem verhältnismäßig kleinen Etui untergebracht werden. Wegen der unterschiedlichen Körpergröße der einen Stock tragenden Personen müssen diese Stöcke mit unterschiedlichen Gesamtlängen erzeugt werden, wodurch sich der Herstellungsaufwand erhöht. Außerdem hat sich gezeigt, daß die Gesamtlänge eines Stockes z.B. bei Bergaufwanderungen kleiner sein sollte als bei Bergabwanderungen, d.h. es müßten eigentlich zwei Stöcke unterschiedlicher Gesamtlänge verwendet werden. Durch die GB-A 2 078 508 ist zwar ein Stock der eingangs beschriebenen Art bekannt, der der dieser Anforderung genügt, indem der Stock aus einem oberen Rohrteil mit Handgriff und einem unteren Rohrteil besteht, der im oberen Rohrteil verschiebbar eingesteckt ist und einen Verriegelungsmechanismus aufweist, sodaß die Gesamtlänge des Stocks einstell- und fixierbar ist, u.zw. zwischen maximaler und etwa halber Gesamtlänge, d.h., der Stock nimmt im kürzesten Zustand noch einen verhältnismäßig großen Raum ein. Außerdem ist zur Verriegelung des Stockes das untere Ende des oberen Rohrteiles konisch erweitert und umschließt einen Gummiring, der bei Druck auf das obere Rohr in das verjüngte Ende des konischen Raumes eingequetscht wird und die beiden Rohrteile gegeneinander fixiert, während er bei Zug auf das innere Rohr in das erweiterte Ende des konischen Raumes gelangt, so daß die beiden Rohrteile auseinandergezogen werden können. Der Nachteil dieser Konstruktion besteht darin, daß der Gummiring beim Zusammenschieben der Rohrteile zum verjüngten Ende des konischen Raumes gelangt und damit das Zusammenschieben der Rohrteile behindert oder erschwert.Such sticks are easy to disassemble and can then be accommodated in a relatively small case. Because of the different heights of the people carrying a stick, these sticks have to be produced with different overall lengths, which increases the manufacturing effort. In addition, it has been shown that the total length of a stick, for example when walking uphill, should be smaller than when walking downhill, ie two sticks of different overall length should actually be used. From GB-A 2 078 508 a stick of the type described above is known, which meets this requirement, in that the stick consists of an upper tube part with a handle and a lower tube part which is slidably inserted in the upper tube part and has a locking mechanism , so that the total length of the stick can be adjusted and fixed, etc. between maximum and about half the total length, ie the stick still occupies a relatively large space in the shortest state. In addition, the lower end of the upper tube part is flared to lock the stick and encloses a rubber ring, which is squeezed into the tapered end of the conical space when pressure is exerted on the upper tube and fixes the two tube parts against one another, while when it is pulled onto the inner tube it reaches the expanded end of the conical space so that the two tube parts can be pulled apart. The disadvantage of this construction is that the rubber ring comes to the tapered end of the conical space when the tube parts are pushed together, thus hindering or making it difficult to push the tube parts together.

Durch die FR-PS 2 392 622 ist ein aus zwei ineinandergesteckten Rohrteilen bestehender Gehstock bekannt, dessen Länge schrittweise verstellbar ist. Zu diesem Zweck sind in beiden Rohrteilen Querbohrungen vorgesehen, durch welche ein Gewindestift mit Gegenmutter einsteckbar ist. Abgesehen von der Gefahr des Verlustes des Gewindestiftes bzw. der Gegenmutter und der umständlichen Verstellung des Gehstockes ist auch eine stetige Verstellung desselben nicht möglich.From FR-PS 2 392 622 a walking stick consisting of two nested pipe parts is known, the length of which is gradually adjustable. For this purpose, cross bores are provided in both pipe parts, through which a threaded pin with lock nut can be inserted. Apart from the risk of losing the threaded pin or the lock nut and the cumbersome adjustment of the walking stick, a constant adjustment of the walking stick is also not possible.

Aufgabe der Erfindung ist die Schaffung eines Stockes, welcher unter Vermeidung der oben geschilderten Nachteile der bekannten Konstruktionen einerseits bei Nichtgebrauch einen kleinen Raum einnimmt und anderseits bei Gebrauch in seiner Gesamtlänge stetig verstellbar und fixierbar ist.The object of the invention is to provide a stick which, while avoiding the disadvantages of the known constructions described above, takes up a small space on the one hand when not in use and on the other hand is continuously adjustable and fixable in its entire length when in use.

Dies wird bei einem Stock der eingangs erwähnten Art erfindungsgemäß daurch erreicht, daß der Verriegelungsmechanismus aus einem Spreizdübel besteht, welcher mit Innengewinde versehen ist, das mit einem Gewindeschaft am Ende des eingesteckten Rohrteiles in Eingriff bringbar ist, wobei der Spreizdübel im Querschnitt keilförmige Spreizarme aufweist, die bei fortschreitendem Eingriff des Innengewindes auf dem Gewindeschaft in einen Spalt zwischen der Außenwand des eingesteckten Rohrteiles und der Innenwand des den eingesteckten Rohrteil umhüllenden Rohrteils eindringen.This is achieved according to the invention in the case of a stick of the type mentioned at the outset in that the locking mechanism consists of an expansion dowel which is provided with an internal thread which can be brought into engagement with a threaded shaft at the end of the inserted tube part, the expansion dowel having wedge-shaped expansion arms in cross section, which with progressive engagement of the internal thread on the threaded shaft in a gap between the outer wall of the inserted pipe part and the inner wall of the inserted pipe part enveloping Penetrate pipe part.

Die Erfindung wird anschließend anhand eines bevorzugten Ausführungsbeispiels mit Hilfe der Zeichnung erläutert. Es zeigen

Fig. 1
die Ansicht eines aus vier Rohrteilen bestehenden erfindungsgemäßen Gehstockes,
Fig. 2
einen Querschnitt durch den Stock nach Fig. 1 im Bereich des Verriegelungsmechanismus,
Fig. 3 und 4
jeweils einen Querschnitt durch den Stock nach Fig. 1 im Bereich der Verbindungsstellen der Rohrteile,
Fig. 5
den Stock im zusammengelegten Zustand, und
Fig. 6
den Stock im Gebrauchszustand.
The invention is subsequently explained on the basis of a preferred exemplary embodiment with the aid of the drawing. Show it
Fig. 1
the view of a walking stick according to the invention consisting of four pipe parts,
Fig. 2
1 in the area of the locking mechanism,
3 and 4
1 in the area of the connection points of the pipe parts,
Fig. 5
the stick in the collapsed state, and
Fig. 6
the stick in use.

In Fig. 1 bezeichnen 1,2 und 3 drei jeweils ineinandersteckbare, erste, zweite und dritte Rohrteile, wobei die Rohrteile 1 und 2 im wesentlichen zylindrisch sind, während sich der Rohrteil 3 konisch zur Spitze verjüngt. In den ersten Rohrteil 1 ist ein vierter Rohrteil 4 verschiebbar eingesteckt, welcher den Handgriff 5 trägt. Am Ende des dritten Rohrteils 3 ist ein Gummistoppel 6 aufgesteckt, der jederzeit abnehmbar ist, sodaß z.B. eine Stahlspitze (nicht dargestellt) frei wird. Der Gummistoppel 6 findet auf Normalstraßen Anwendung, während sich die Stahlspitze für Gelände mit Eis und Schnee eignet. Es kann auch jederzeit ein Schneeteller (nicht dargestellt) in Form eines Gelenk- oder Kugeltellers montiert werden, welcher sich dem jeweiligen Gelände anpaßt. Der Handgriff 5 kann auch mit einer Schlaufe (nicht dargestellt) versehen sein, sodaß man den Stock bei Bedarf am Handgelenk hängen lassen kann.In Fig. 1, 1, 2 and 3 designate three, first, second and third pipe parts which can be plugged into one another, the pipe parts 1 and 2 being essentially cylindrical, while the pipe part 3 tapers conically towards the tip. A fourth tube part 4, which carries the handle 5, is slidably inserted into the first tube part 1. At the end of the third tube part 3, a rubber stub 6 is attached, which can be removed at any time, so that e.g. a steel tip (not shown) becomes free. The rubber stubble 6 is used on normal roads, while the steel tip is suitable for terrain with ice and snow. A snow plate (not shown) in the form of an articulated or spherical plate can also be fitted at any time, which adapts to the respective terrain. The handle 5 can also be provided with a loop (not shown) so that the stick can be hung on the wrist if necessary.

Der Verriegelungsmechanismus zwischen dem ersten Rohrteil 1 und dem vierten Rohrteil 4 besteht darin, daß das dem Handgriff 5 gegenüberliegende Ende des vierten Rohrteils einen Spreizdübel 7, vorzugsweise aus Kunststoff oder Metall, trägt, der im verriegelten Zustand eine starre Verbindung zwischen den beiden Rohrteilen 1 und 4 herstellt, wie später erläutert wird. Das Ende des vierten Rohrteils 4 weist anfangs einen leicht konischen Bereich 8 auf, der in einen stark konischen Bereich 9 übergeht und sich zunächst als Gewindeschaft 10 und anschließend als gewindeloser Schaft 11 kleineren Durchmessers als das Gewinde fortsetzt. Am Ende des Schaftes 11 ist eine Sicherungsscheibe 12, z.B. eine federnde Scheibe mit Innenverzahnung od.dgl. aufgesteckt. Der Spreizdübel 7 besteht aus einem außen und innen konisch geformten Bereich, der am Umfang z.B. vier Längsschlitze 13 aufweist, sodaß vier Spreizarme 14 gebildet werden. Der äußere Konus verläuft flacher als der innere Konus, sodaß ein keilförmiger Querschnitt der Spreizarme 13 entsteht (Fig.2) An den konischen Bereich des Spreizdübels 7 schließt ein im wesentlichen zylindrischer Bereich mit einem Innengewinde 15 an. Am Übergang des Rohrteils 1 zum Rohrteil 4 ist eine Schutzkappe 16, vorzugsweise aus Kunststoff, auf den Rohrteil 1 aufgesteckt.The locking mechanism between the first tube part 1 and the fourth tube part 4 is that the end of the fourth tube part opposite the handle 5 carries an expansion anchor 7, preferably made of plastic or metal, which in the locked state has a rigid connection between the two tube parts 1 and 4, as will be explained later. The end of the fourth pipe part 4 initially has a slightly conical area 8 which merges into a strongly conical area 9 and continues initially as a threaded shaft 10 and then as a threadless shaft 11 of smaller diameter than the thread. At the end of the shaft 11 is a locking washer 12 or the like, for example a resilient washer with internal teeth. attached. The expansion dowel 7 consists of an externally and internally conically shaped area which, for example, has four longitudinal slots 13 on the circumference, so that four expansion arms 14 are formed. The outer cone is flatter than the inner cone, so that a wedge-shaped cross-section the spreading arms 13 are formed (FIG. 2). The conical region of the expansion dowel 7 is adjoined by an essentially cylindrical region with an internal thread 15. At the transition from the pipe part 1 to the pipe part 4, a protective cap 16, preferably made of plastic, is placed on the pipe part 1.

Fig. 3 zeigt die Steckverbindung zwischen dem ersten Rohrteil 1 und dem zweiten Rohrteil 2. Zu diesem Zweck weist der erste Rohrteil 1 einen Endbereich mit verringertem Außendurchmesser auf, der im wesentlichen gleich oder etwas kleiner als der Innendurchmesser des zweiten Rohrteils 2 ist. Bei der in Fig. 4 dargestellten Steckverbindung zwischen dem zweiten Rohrteil 2 und dem Rohrteil 3 weist der Rohrteil 3 einen Außendurchmesser auf, der im wesentlichen gleich oder etwas kleiner als der Innendurchmesser des dritten Rohrteils 3 ist, wobei eine Umfangsrille 17 im Rohrteil 2 als Anschlag für den Rohrteil 3 dient. Wie aus Fig. 1 ersichtlich ist, verbindet eine Gummischnur 18 die Rohrteile 1 bis 3 untereinander. Die Enden der Gummischnur 18 sind in den Rohrteilen 1 und 3 befestigt, wobei die Gummischnur 18 unter einer leichten Vorspannung steht.3 shows the plug connection between the first pipe part 1 and the second pipe part 2. For this purpose, the first pipe part 1 has an end region with a reduced outer diameter which is essentially the same or slightly smaller than the inner diameter of the second pipe part 2. In the plug connection shown in Fig. 4 between the second pipe part 2 and the pipe part 3, the pipe part 3 has an outer diameter which is substantially the same or slightly smaller than the inner diameter of the third pipe part 3, with a circumferential groove 17 in the pipe part 2 as a stop serves for the pipe part 3. As can be seen from Fig. 1, a rubber cord 18 connects the pipe parts 1 to 3 with each other. The ends of the rubber cord 18 are fastened in the tube parts 1 and 3, the rubber cord 18 being under a slight prestress.

Fig. 5 zeigt den Stock im zusammengelegten Zustand, wobei der vierte Rohrteil 4 nahezu vollständig in den ersten Rohrteil 1 eingeschoben ist. Um den Stock in den in Fig. 6 dargestellten Gebrauchszustand zu bringen, werden zunächst die Rohrteile 1 bis 3 zusammengesteckt, wobei die vorgespannte Gummischnur 18 unterstützend wirkt, worauf der vierte Rohrteil 4 mit dem Handgriff 5 soweit aus dem ersten Rohrteil 1 herausgezogen wird, bis die gewünschte Gesamtlänge des Stockes erreicht ist. Dies erfolgt im entriegelten Zustand des Verriegelungsmechanismus, wie in Fig. 2 dargestellt. D.h das Innengewinde 15 des Spreizdübels 7 befindet sich im Bereich des gewindelosen Schaftes 11. Hält man nun den Rohrteil 1 mit einer Hand und dreht man mit der anderen Hand den vierten Rohrteil 4 mit dem Handgriff 5 unter gleichzeitiger Anwendung eines leichten Druckes in Richtung zum Stockende, so kommt der Gewindeschaft 10 in Eingriff mit dem Innengewinde 15 des Spreizdübels 7, wobei die Reibung der Spreizarme 14 mit der Innenwand der ersten Rohrteils 1 eine Drehung des Spreizdübels 7 verhindert. Der maximale Durchmesser des Spreizdübels 7 an den Enden der Spreizarme 14 ist im ausgebauten Zustand des Spreizdübels 7 größer als der Innendurchmesser des ersten Rohrteils 1 gewählt, sodaß die Spreizarme 14 im eingebauten Zustand des Spreizdübels 7 federnd gegen die Innenwand des ersten Rohrteils 1 drücken, wodurch die Reibung erhöht wird. Bei Fortsetzung der Drehbewegung wandert der Spreizdübel 7 somit in Richtung zum stark konischen Bereich 9 des vierten Rohrteils 4, bis die Enden der keilförmigen Spreizarme 14 den Übergang zwischen dem stark konischen Bereich 9 und dem leicht konischen Bereich 8 berühren, anschließend aufgespreizt werden und in den Raum zwischen dem leicht konischen Bereich 8 und der Innenwand der ersten Rohrteils 1 eindringen, sodaß der erste Rohrteil 1 mit dem vierten Rohrteil 4 fest verkeilt wird und der Stock gebrauchsfertig ist. Wünscht man den Stock wieder zu zerlegen oder die Gesamtlänge zu verändern, so braucht man nur den vierten Rohrteil 4 in die umgekehrte Drehrichtung so lange zu verdrehen, bis sich die Spreizarme 14 außerhalb des leicht konischen Bereiches 8 des ersten Rohrteils 1 befinden, bzw. bis der Spreizdübel 7 wieder die in Fig. 2 dargestellte Lage einnimmt, wobei die Sicherungsscheibe 14 ein Loslösen des Spreizdübels 7 vom Schaft 11 verhindert.Fig. 5 shows the stick in the collapsed state, the fourth pipe part 4 is almost completely inserted into the first pipe part 1. In order to bring the stick into the use state shown in FIG. 6, the pipe parts 1 to 3 are first put together, the prestressed rubber cord 18 having a supporting effect, whereupon the fourth pipe part 4 is pulled out of the first pipe part 1 with the handle 5 until the desired total length of the stick has been reached. This takes place in the unlocked state of the locking mechanism, as shown in FIG. 2. Ie the internal thread 15 of the expansion anchor 7 is located in the area of the threadless shaft 11. Now hold the pipe part 1 with one hand and with the other hand turn the fourth pipe part 4 with the handle 5 while simultaneously Applying a slight pressure towards the end of the stick, the threaded shaft 10 comes into engagement with the internal thread 15 of the expansion anchor 7, the friction of the expansion arms 14 with the inner wall of the first pipe part 1 preventing rotation of the expansion anchor 7. The maximum diameter of the expansion anchor 7 at the ends of the expansion arms 14 is greater than the inside diameter of the first pipe part 1 when the expansion anchor 7 is removed, so that the expansion arms 14 press resiliently against the inner wall of the first tube part 1 when the expansion anchor 7 is installed, thereby the friction is increased. As the rotary movement continues, the expansion dowel 7 thus moves in the direction of the strongly conical region 9 of the fourth pipe part 4 until the ends of the wedge-shaped expansion arms 14 touch the transition between the strongly conical region 9 and the slightly conical region 8, then are expanded and into the Penetrate space between the slightly conical area 8 and the inner wall of the first tube part 1, so that the first tube part 1 is firmly wedged with the fourth tube part 4 and the stick is ready for use. If you want to dismantle the stick again or change the overall length, you only need to turn the fourth pipe part 4 in the opposite direction until the spreading arms 14 are outside the slightly conical area 8 of the first pipe part 1, or until the expansion anchor 7 again assumes the position shown in FIG. 2, the locking washer 14 preventing the expansion anchor 7 from detaching from the shaft 11.

Beim dargestellten Ausführungsbeispiel ist der Verriegelungsmechanismus zwischen dem ersten und vierten Rohrteil 1 und 4 vorgesehen. Es besteht auch die Möglichkeit, den Verriegelungsmechanismus zwischen dem zweiten und dritten Rohrteil 2 und 3 anzuordnen, wobei dann die Verbindung zwischen dem ersten und vierten Rohrteil 1 und 4 als Steckverbindung ausgeführt ist und die Gummischnur 18 die Rohrteile 4,1 und 2 verbindet.In the illustrated embodiment, the locking mechanism is provided between the first and fourth tubular parts 1 and 4. There is also the possibility of arranging the locking mechanism between the second and third tube parts 2 and 3, in which case the connection between the first and fourth tube parts 1 and 4 is designed as a plug connection and the rubber cord 18 connects the tube parts 4, 1 and 2.

Claims (5)

  1. A collapsible walking-stick with a handle, in particular a hiking stick, alpenstock or the like, consisting of several telescopable tube parts, two tube parts being connected to a continuously adjustable bolting mechanism for the purpose of adjusting the total length of the stick, characterised in that the bolting mechanism consists of a straddling dowel (7) provided with an inner thread (15) which can be brought into engagement with a threaded shank (10) at the end of the inserted tube part (4), the straddling dowel (7) having straddling arms (14) of wedge-shaped cross-section which, during progressive engagement of the inner thread (15) on the threaded shank (10), penetrate a cleft between the outer wall of the inserted tube part (4) and the inner wall of the tube part (1) which envelops the inserted tube part.
  2. A walking stick according to Claim 1, characterised in that the end of the inserted tube part (4) has at the beginning a slightly conical region (8) which passes over into a very conical region (9) and is continued as a threaded shank (10) and subsequently as a threadless shank (11) of smaller diameter than the thread, the cleft for accommodating the straddling arms (14) being formed between the slightly conical region (8) and the inner wall of the enveloping tube part (1).
  3. A walking-stick according to Claims 1 and 2, characterised in that the straddling dowel (7) has a region which is conical in shape outside and inside, the outer cone being flatter than the inner cone, thus forming the wedge-shaped cross-section of the straddling arms; in that several longitudinal slits (13) are provided on the circumference of the conical region, thus forming four straddling arms (14), and in that a substantially cylindrical region, having the inner thread (15), adjoins the conical region.
  4. A walking-stick according to Claims 2 and 3, characterised in that a lock washer (12) is slipped on at the end of the threadless shank (11).
  5. A walking-stick according to any one of the preceding claims 1 to 4, characterised in that the inserted tube part (4) is the upper tube part which is at the end and which carries the handle (5).
EP19860890252 1985-09-10 1986-09-08 Foldable walking-stick Expired - Lifetime EP0215771B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2649/85 1985-09-10
AT264985A AT384716B (en) 1985-09-10 1985-09-10 FOLDABLE CANE

Publications (3)

Publication Number Publication Date
EP0215771A2 EP0215771A2 (en) 1987-03-25
EP0215771A3 EP0215771A3 (en) 1988-11-17
EP0215771B1 true EP0215771B1 (en) 1992-02-26

Family

ID=3538068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860890252 Expired - Lifetime EP0215771B1 (en) 1985-09-10 1986-09-08 Foldable walking-stick

Country Status (3)

Country Link
EP (1) EP0215771B1 (en)
AT (1) AT384716B (en)
DE (1) DE3683976D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319724A (en) * 1996-11-28 1998-06-03 David Philip Moakes Resilient connector for elongate articles
EP1016435A3 (en) * 1998-12-29 2002-11-27 Martin Straus Ski- and Walking-stick

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10215593A1 (en) * 2002-04-10 2003-10-23 Martin Straus Alpenstock clamp integral with grip threads anchor rope through stick parts via hangers and rails to join cone connections which fold out to firm stick via actuated clamps.
DE20211381U1 (en) * 2002-07-23 2003-12-04 Lenhart, Klaus Collapsible walking or trekking stick, comprising integrated spring supported rope keeping separated parts loosely connected
KR100849633B1 (en) 2008-05-23 2008-08-01 오성듀랄루민(주) Multiple stick
GB2479911B (en) * 2010-04-29 2012-04-11 Megan Louise Holroyd Repair system for a foldable walking aid
US8985130B2 (en) 2013-03-12 2015-03-24 Edgewater International, Inc. Magnetically assisted coupling for segmented shaft

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE395164C (en) * 1922-04-16 1924-05-12 Ernst Kuhse Telescopic cane that can be pushed together like a telescope
US3669133A (en) * 1971-06-08 1972-06-13 Hycor Inc Collapsible rod
DE2140450A1 (en) * 1971-08-12 1973-03-15 Josef Wimmer COMBINATION STICK FOR HIKING, MOUNTAIN AND SKIING FRIENDS
FR2392622A1 (en) * 1977-06-03 1978-12-29 Barsanti Jean Length adjustable walking stick - has two telescopic tubes held together by bolt received in aligned holes
GB2078508A (en) * 1980-05-19 1982-01-13 Carters J & A Ltd Adjustable locking mechanism
CH648460A5 (en) * 1981-01-14 1985-03-29 Lothar A Hofmann Walking stick

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319724A (en) * 1996-11-28 1998-06-03 David Philip Moakes Resilient connector for elongate articles
EP1016435A3 (en) * 1998-12-29 2002-11-27 Martin Straus Ski- and Walking-stick

Also Published As

Publication number Publication date
ATA264985A (en) 1987-06-15
AT384716B (en) 1987-12-28
EP0215771A3 (en) 1988-11-17
DE3683976D1 (en) 1992-04-02
EP0215771A2 (en) 1987-03-25

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