EP4118997A1 - Folding stick - Google Patents

Abstract

Folding pole (1) with three or four tube sections (7-9), with the tube sections (7-9) being connected to one another in the assembled state of the folding pole (1) via plug-in connections aligned along the pole axis (32), and at least two tube sections (8 , 8', 9) are only connected to one another via a movable connecting element (16) in the folded state, characterized in that at least one of the plug-in connections (17, 34) has a guide pin (17) with a cylindrical guide section (34b, 49). with a smaller or almost the same outside diameter as the inside diameter of the following pipe section to be connected, and with a length (L) in the range of 10-100 mm, the cylindrical guide section (34b, 49) having at least one circumferential recess (29,33) in has its cylindrical lateral surface with a length (I) in the range of 5-50 mm, so that a front guide section (30,35) and a rear guide section (31,36) of the cylindrical guide section (34b, 49) is formed, with the circumferential Recess (29,33) has a cylindrical lateral surface with an outer diameter which is smaller in the range of 0.1-2.0 mm than the outer diameter of the front and the rear guide section

Description

TECHNICAL AREA

The present invention relates to the field of poles for hiking, Nordic walking, but also in the broadest sense for other sports such as cross-country or downhill skiing, mountaineering, etc.

STATE OF THE ART

In particular, but not exclusively, from the field of hiking resp. Pole constructions are known to Nordic Walking, which are adjustable in length. The adjustability can be used on the one hand to adjust the length of the pole to the needs, and on the other hand to reduce the pole to a pack size that is as small as possible, i.e. to design the length so that it can be reduced so much that the Stick can be stowed in a backpack or similar, for example. Such constructions, in which so-called inner tubes with a small diameter are slidably mounted in an outer tube with a slightly larger diameter, and in which the relative position of the tube sections can be fixed by a locking mechanism, are known, for example, from DE 297 06 849 or also from the DE 497 08 829 or the EP 1 450 906 .

When using such constructions, it is imperative that the individual tube sections have different diameters, and it must also be ensured that the tubes can be pushed into one another to a large extent so that the tubes can be pushed into one another, in particular so that the small pack size can be achieved.

Alternative mechanisms in which the relative determination of the axial position of different pipe sections is not realized by an internal locking mechanism are, for example, from WO 2010/085905 known, or also from the DE 694 01 765 or the EP 1 217 224 resp. the EPO 098 898 However, these external constructions are often not suitable for storing more than two stick tubes in one another, which means that the pack size is not sufficiently small.

From the WO-A-2012104424 and the corresponding one US2017/0127775 is a Faltstock with 4 pipe sections known, the pipe sections in the composite State of the folding stick are aligned with each other via plug-in connections along the stick axis, and normally three pipe sections are only connected to each other via a movable connecting element in the folded state. A pole grip is arranged on an uppermost tube section and a pole tip is arranged on a lowermost tube section. At least one of the plug-in connections is realized via an external clamping mechanism, in which it is attached to a first pipe section, and in which a second pipe section, which has a smaller or almost the same outside diameter as the inside diameter of the first pipe section, and which in the first Pipe section is slidably mounted in itself, can be fixed in the relative axial position by the external clamping mechanism. The other plug-in connections are designed as pure plug-in connections, in which tube sections are only fixed in an axial direction when plugged together. The pipe sections are connected to one another via at least one traction cable, which is attached to the lowermost pipe section and is attached to the uppermost pipe section and is arranged to run through the interior of the at least two middle pipe sections State can be converted by the other connectors are plugged together, and then with the external clamping mechanism released, the second pipe section is pulled out of the first pipe section until the traction cable is under tension, and by the external clamping mechanism is fixed.

DE 10 2007 051 197 from a completely different field discloses a marking device for playing fields for field sports, comprising a base element, a multi-section marker stick and a first joint, the base element and the multi-section marker pole being articulated to one another through the first joint and the multi-section marker pole being connected in relation to the base element via the first joint can be moved between a rest position and a deflected position, the multi-part marking rod having at least one first part rod and second part rod articulated by a second joint and the first part rod and the second part rod being movable relative to one another between a set-up position and a transport position, whereby a marking device is provided, which is particularly easy to transport, and provides a marking device that ensures a certain level of loss security before losing individual elements.

EP-A-1 016 435 describes a ski and hiking pole, which consists of individual tubular pole sections that are releasably connected to each other, with at least one Stick section is adjustable in length and can be secured in the selected length by a lockable locking device. The stick sections are connected to each other with the help of a continuous tie rod and can be folded on plug-in and/or screw connection units.

CN-A-105840606 describes a quick-connect structure formed by connecting a plurality of individual tubes end-to-end. The end of each individual tube is pulled back and forms a push-in connector. A rope is connected between each two individual tubes. After the male connector of each pipe is loosened, a W-shaped folded structure is formed, and the structure is connected by ropes, and the ropes have no elasticity. The quick mating structure includes at least one telescoping rod. The telescopic rod is formed by an inner tube and an outer tube. An inner bar is fitted with an elastic buckle. When the buckle extends outward, the buckle can clamp the tube wall of the outer tube, and after the inner tube is pulled out and clamped, the male connector of each individual tube is inserted into the corresponding tube, and at the same time the ropes are in a completely straight state . The structure is used in a mountain pole and other places where the pole body length needs to be changed, and the contraction of a long pole is realized by a multi-section folding method. Because only two adjacent single tubes cooperate, the outer diameters of the tube walls of support tubes can be the same, up-thick-low-thin structure of the telescopic rod is avoided, and the structure has better strength. The number of sections can be arranged at will, and the length of the structure is shorter after contraction, and the structure is convenient to carry.

PRESENTATION OF THE INVENTION

Accordingly, it is an object of the present invention, among other things, to provide a structurally simple and therefore robust folding stick that can be folded up as small as possible, for example to be stored in a backpack or a bag.

This object is achieved by a folding pole with the features of claim 1. According to a first aspect of the present invention, this relates to a folding pole with at least three, preferably at least four, tube sections.

In the assembled state of the folding pole, the pipe sections are connected to one another via plug-in connections aligned along the pole axis. At least two pipe sections are only over one when folded movable connecting element connected to each other.

A stick grip is usually arranged on an uppermost tube section and a stick tip is arranged on a lowermost tube section.

At least one of the plug connections is now realized via an external clamping mechanism, in which the clamping mechanism is attached to a first pipe section, and in which a second pipe section, which has a smaller or almost the same outside diameter as the inside diameter of the first pipe section, and which is in the first pipe section is displaceably mounted in itself, can be fixed in the relative axial position by the external clamping mechanism.

Alternatively or additionally, at least one of the plug-in connections is implemented via a positive locking device on a second pipe section, the second pipe section having a smaller or almost the same outside diameter as the inside diameter of a first pipe section and being able to be pushed into the first pipe section and in the relative axial Position can be fixed by the positive locking device.

Such a folding stick can be designed to be adjustable in length if it has the clamping mechanism mentioned. However, it can also be designed to be non-adjustable if it only has the positive locking device mentioned. A mixed form is also possible, namely an adjustable folding stick, in which the two uppermost pipe sections can be adjusted differently in length with a clamping mechanism, and in which a form-fitting locking device as mentioned above is then formed in the following pipe sections, in which case in particular the locking device is used to generate the cable tension when plugged together.

The other plug-in connections are designed as pure plug-in connections (i.e. those that are not provided with the clamping mechanism or the locking device), in which tube sections are only fixed in an axial direction when plugged together.

Typically, the tube sections are connected to one another via at least one pull cable, which is normally attached to the bottom tube section and to the top tube section and/or the pole grip and is arranged to run through the interior of the at least two middle tube sections. The pole is held together in the assembled state by this traction cable, since the other plug-in connections are only fixed in one axial direction.

The folding stick is designed in such a way that it is folded from the state can be brought into the assembled state by plugging the other plug-in connections together, and then, with the external clamping mechanism released or the latching device released, the second pipe section is pulled out of the first pipe section until the traction cable is under tension, and by fixing the external clamping mechanism or the positive locking device.

According to the invention, the construction is characterized in particular in that at least one of the plug-in connections has a guide pin with a cylindrical guide section with a smaller or almost the same outside diameter as the inside diameter of the following pipe section to be connected. This cylindrical guide section has a length L in the range of 10-100 mm. What is special is that the cylindrical guide section or its cylindrical lateral surface has at least one circumferential depression in its cylindrical lateral surface with a length I in the range of 5-50 mm, so that a front guide section and a rear guide section of the cylindrical guide section are formed, and wherein the Circumferential depression has a cylindrical lateral surface with an outer diameter which is smaller in the range of 0.1-2.0 mm than the outer diameter of the front and the rear guide section. The problem with such plug-in connections is the fact that, due to the required good guidance, the outer diameter of the guide pin is only slightly smaller than the inner diameter of the pipe section into which the guide pin is to be inserted. Typically, the outside diameter of the guide pin is only in the range of 0.001-0.2 mm, preferably 0.01-0.1 mm smaller than the inside diameter of the tube section into which the guide pin is to be inserted. In particular, when moisture or water can penetrate into the gap, possibly combined with low temperatures or even temperatures in the region of freezing point, it can happen that the plug connections cannot be separated again without using excessive force, even if the voltage of the pull rope is released.

An unexpectedly simple solution to this problem is provided by the proposed invention, namely, it turns out that the circumferential indentation means that even if water is present in the gap, the connections can still be easily released.

It is important that the aforementioned front and rear guide sections remain on both sides of the circumferential depression so as not to impair the connection between the pipe sections. Because these front and rear Guide sections continue to have a cylindrical lateral surface, they not only result in good remaining guidance, but they also mean that the outer tube is not damaged even under load, which means that smaller gap dimensions are also possible. A first preferred embodiment is characterized in that the cylindrical guide section has a single peripheral depression, preferably with a length l in the range of 7-50 mm, particularly preferably in the range of 10-30 mm.

The cylindrical guide section, the front guide section and the rear guide section typically have an outside diameter in the range of 5-20 mm, preferably in the range of 10-18 mm.

The peripheral recess typically has a cylindrical lateral surface with an outside diameter which is smaller in the range of 0.5-1.5 mm, preferably in the range of 0.75-1.25 mm, than the outside diameter of the front and rear guide section.

The front guide section and/or the rear guide section, preferably both, preferably have a length in the range of 2-30 mm, preferably in the range of 5-15 mm.

Another preferred embodiment is characterized in that the cylindrical guide section is made of metal, preferably stainless steel, aluminum, magnesium, a light metal alloy or composite materials such as glass fiber reinforced plastic or carbon fiber reinforced plastic, based for example on polyamide or cross-linked resins, and preferably the circumferential recess is made in a milling process or a turning process or a grinding process or a combination thereof.

The transition between the front guide section and the circumferential recess and/or between the rear guide section and the circumferential recess can be formed by a beveled or rounded edge.

All pure plug-in connections of the folding stick, preferably all plug-in connections, preferably have a peripheral depression as defined above. A further preferred embodiment is characterized in that the further plug-in connections are designed in such a way that on one tube section they have a guide pin which is provided with an axially running central passage opening for the traction cable, which is firmly fastened with a fastening section in this tube section and axially opposite a the other pipe section has a cylindrical guide section that can be pushed in, with a preferably radially circumferential, outwardly directed support flange being preferably provided between the fastening section and the spigot area State is brought into axial abutment with the pipe end of the other pipe section and / or with a pipe end collar provided thereon.

This axial stop can be designed asymmetrically around the pole axis. Furthermore, preferably, the cylindrical guide section can have at its end facing the other pipe section an at least partially conically tapering area or a closing pin.

The first pipe section is preferably the uppermost pipe section, and the second pipe section is the middle pipe section directly adjoining it downwards, with the at least one plug-in connection being realized via an external clamping mechanism.

It is also possible for the first pipe section to be the topmost or second-top pipe section, and for the second pipe section to be the first middle pipe section adjoining it at the bottom, and for the at least one plug-in connection to be implemented via a positive locking device, with the locking device preferably having a spring-loaded radial locking pin or a locking lug, which is preferably held against the action of a spring element in a radial through-bore of the second tube section or in a circumferential groove, preferably the plug-in connection.

The folding pole can also be characterized in that the further plug-in connections are designed in such a way that in the axial stop position they are secured against relative twisting of the pipe sections connected thereto about the pole axis, preferably by ensuring a form-fitting connection, which is also preferably at a automatically locked when the connectors are pushed together.

Further embodiments are specified in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

in a) eine Ansicht eines Stockes mit vier Rohrabschnitten im gefalteten Zustand, wobei die unteren beiden Rohrabschnitte lose und nur noch über das Zugseil verbunden angeordnet sind und die beiden oberen Rohrabschnitte soweit wie möglich ineinander geschoben sind und über den aussen liegenden Klemmmechanismus in ihrer axialen Position relativ zueinander festgelegt sind, in b) einen axialen Schnitt durch einen Faltstock nach Fig. 1 a) im zusammengesteckten Zustand;

Fig. 2

einen weiteren Faltstock in einer schematischen Darstellung, wobei die einzelnen Rohre separat wiedergegeben sind;

Fig. 3

den Ausschnitt A aus Figur 2;

Fig. 4

den Ausschnitt B aus Figur 2;

Fig. 5

den Ausschnitt C aus Figur 2;

Fig. 6

die Vergrößerung von Z gemäß Figur 3;

Fig. 7

die Vergrößerung von Y aus den Figuren 4 und 5.

Preferred embodiments of the invention are described below with reference to the drawings, which are for explanation only and are not to be interpreted as restrictive. In the drawings show:

1

in a) a view of a stick with four tube sections in the folded state, with the two lower tube sections arranged loosely and only connected via the traction cable and the two upper tube sections pushed into one another as far as possible and in their axial position via the external clamping mechanism are fixed relative to one another, in b) an axial section through a folding stick 1 a) in the assembled state;

2

another Faltstock in a schematic representation, wherein the individual tubes are shown separately;

3

cutout A figure 2 ;

4

cutout B figure 2 ;

figure 5

the section C figure 2 ;

6

the magnification of Z according to figure 3 ;

7

the magnification of Y from the figures 4 and 5 .

DESCRIPTION OF PREFERRED EMBODIMENTS

An embodiment of a folding stick 1 with four tube sections 7-9 is in figure 1 shown. Figure 1a ) shows such a folding stick 1 in the folded state, ie in the state in which the top two pipe sections are completely pushed into one another and the lower two pipe sections are arranged folded next to it, and Figure 1 b) in assembled condition.

In concrete terms, such a stick comprises an uppermost tubular section 7, to which a stick handle 2 is fastened at the very top. In this case, this stick grip 2 is designed asymmetrically, in the forward running direction it is designed with a bevel at the top and has a release button 5 for a holding mechanism for a hand holding device, and to a certain extent a holding lug 3 to the rear, which is in the form of a pin with a slot 4 arranged in front of it is formed. In other words, it is a stick handle, such as that found in WO 2006/066423 is known, and how it can be used, for example, together with a glove or a wrist strap, as from WO 2006/066424 known, ie with a hand holding device, which has a loop between the thumb and forefinger, which can be passed over the retaining lug 3 and then locked in the slot 4 in a self-engaging manner. The pole grip 2 also has a grip area 6, which is usually designed as an area with a grip-friendly coating.

An external clamping mechanism 10 is arranged at the lower end of this uppermost pipe section, the pipe can in principle, this applies to all pipe sections, be a pipe made of aluminum or carbon composite material. In this specific case, it is an external clamping mechanism such as that shown in WO 2010/085905 is known, but it could also be a clamping mechanism according to the EPO 098 898 or according to the EP 1 217 224 act.

In this specific case, the clamping mechanism 10 is over in its upper area a peripheral holding area 13, which is typically made of plastic, is attached to the pipe section 7, the upper pipe section 7 has an axially running slot in the area encompassed by the clamping mechanism 10, in particular below the holding area 13, so that the actual clamping area of the sleeve arranged below the area 13 leads to the outer tube 7 being clamped to the inner tube 8 pushed into it and thus a non-positive connection can be established between the two.

Correspondingly, below the circumferential holding area 13 there is a slotted clamping area 14, the slot running between two projections which are penetrated by a transverse pin forming a clamping axis 12. The pin is fixed on the rear side, for example with a nut, and on the side shown here on the front side, it is connected to the lever 11 via a transverse axis which forms a fulcrum for the latter. At its pivot point, the lever 11 has two fork-shaped extensions, which are designed as eccentrics. So tapers the clamping lever 11 in the clamped state, as shown here, when the lever to the stick tube, respectively. around the clamping device, the slit is strong enough for the clamping to take place. If the lever is folded outwards, this clamping is reduced because the eccentric widens the two projections to a certain extent and releases the non-positive clamping.

In the uppermost pipe section 7, the upper of the two middle pipe sections 8 is inserted from the inside. The outer diameter of this upper central pipe section 8 is just slightly less than the inner diameter of the uppermost pipe section 7, so that mobility is ensured with as little play as possible. The uppermost tube section 7 accommodates the upper of the middle tube sections 8 as much as possible in order to keep the pack size as small as possible. Typically, the tube section 8 is pushed in up to the stop on an upper fastening pin.

The upper of the two middle pipe sections 8 is followed by another lower middle pipe section 8′, which is folded over to a certain extent and has the same pipe diameter as the upper middle pipe section 8. A pure plug-in connection 17 is provided in between, which is not connected here, the plug-in connection 17 has a guide pin 49 which is tapered 18 at its tip. The guide pin 49 is attached to the lower of the two pipe sections 8' and is inserted into this via a fastening area rotational fixation.

At the opposite end of the lower of the two central pipe sections 8 ′, a lower pipe sealing sleeve 19 is provided there. Folded over again, this is followed by the bottom tube section 9, which in this case is a tapering tube which has the same diameter in the top section as the two middle tube sections 8, 8', but which tapers downwards. At the lower end of this lowest tube section 9 a pole tip 23 is attached. This pole tip is designed asymmetrically, ie it has a slanted rubber buffer 25 tapering to a point towards the rear in the lowest area, which is also adjustable here insofar as it can be adjusted between at least two positions. Specifically, between the position shown here where a hard tip 24 is positioned passing through a hole in the rubber bumper 25 (which is suitable for icy ground or gravel ground), when a shift lever 26 is tilted to the right, the bumper can be slid down and through renewed folding of the adjustment lever 26 are fixed there, so that the tip 24 disappears in this position, so to speak, in the opening in the buffer 25. This means that only the rolling surface of the asymmetrical buffer comes into contact with the ground. The latter operating position is particularly advantageous for tar surfaces or the like, because then the annoying clicking noises and the uncomfortably hard impact of the tip hitting are reduced. It is, in other words, a tip, as for example from the WO 2008/037098 is known, as well as from the international application WO 2011/128231 .

At the upper end, the lowermost tube section 9 also has a plug-in connection 17 of essentially the same design as in the case already described, i.e. there is a guide pin 49 which is designed to taper conically at its tip 18 and which has an outer diameter such that it can be inserted flush with the lower end of the lower central pipe section 8' without any play.

The individual pipe sections are connected to one another via a flexible but low-stretch traction cable 16, which is made up of low-stretch plastic fibers such as ^Dyneema® , aramid or the like, monofilament and/or braided and/or sheathed. Also possible is an optionally sheathed wire cable with a thickness of 0.5-6 mm, preferably 1-3 mm, particularly preferably 1-2 mm. To ensure the tensile strength of the traction rope, preference is given, for example, to multifilaments made from several parallel monofilaments, e.g. made of ^Dyneema® , optionally encased by a carrier material, or multifilaments made from several braided monofilaments, e.g. made of ^Dyneema® , optionally individually and/or as a braid from a carrier material encased. Chain-like traction cables are also possible. In this way, the individual pipe sections 8' and 9 are loosely connected to the two upper pipe sections 7, 8 pushed into one another in this position, which is advantageous for transport and prevents the individual parts from being lost. The traction cable 16 can be provided with a protective sheathing, preferably in the form of a thermoplastic hose, eg made of PE, in sections, in particular in the sections provided for folding.

An elastically stretchable traction cable can also be used to enable spring-loaded storage of the traction cable, in which case it can be made, for example, from monofilament polyamide cord, e.g. from nylon, but rubber cords or multi-core, braided rubber cords are also conceivable.

Figure 1b ) shows an axial section through this stick when it is in the assembled state, ie when the two lower tube sections 8' and 9 are inserted into one another and the two upper tube sections 7, 8 are pulled apart as far as possible. The stick can be folded from the folded position as in Figure 1a ) shown in the nested position according to Figure 1b ) by pushing the bottom pole section 9 via the plug-in connection 17 into the lower of the two middle pipe sections 8', by subsequently (or beforehand) pushing the middle section 8' into the other middle section 8 via the corresponding plug-in connection 17 , and by subsequently releasing the external clamping mechanism 10 by releasing the lever 11 and then pulling the tube 8 out of the tube 7 . This up to that state in which the traction cable 16, as in Figure 1b ) is shown, is under tension, because the traction cable 16 is fixed in the bottom tube section 9 and the top tube section 7 lying on the inside. The stick is now fixed in this position by fixing the external clamping mechanism 10 again. The plug-in connections between the tube sections 8, 8', or 8' and 9, which are only fixed in one axial direction, are thus also fixed in the other axial direction and hold the segments together.

Another folding stick is in figure 2 shown schematically and with separate pipe sections. Here again, the folding pole has a somewhat differently designed pole grip 2, which is attached to another uppermost tubular section 7'. This tube section 7' is terminated by a pin 27'. An external clamping mechanism 10, as already described above, is arranged at the lower end of this pipe section 7'.

This first tube 7' is followed by a first tube section 7, which is pushed into the first tube 7' and has an upper fastening pin 27' at the upper end, to which the traction cable 16 is fastened. At the bottom of this tube 7 has a external clamping mechanism 10 'fixed via a form fit, that is not designed with a clamping lever.

A second pipe section 8 is pushed into this first pipe 7 . This now has an upper terminal pin 34, which is related to figure 3 to be described further. This closing pin 34 slides with its cylindrical outer surface in the inner surface of the first pipe section 7. At the lower end, the second pipe section 8 has, as already in connection with FIG figure 1 described, via a pipe end collar 15.

This is followed by another middle pipe section 8', which now has the same outside diameter and the same inside diameter as the middle pipe section 8 mentioned in the previous paragraph. At its upper end, this other middle pipe section 8' has a guide pin 17, which has a further connector is available. In contrast to the plug connections already described, this connection is only fixed in one direction and is not fixed in both directions via an external mechanism. At the lower end, this further, second pipe section 8' also has a pipe sealing sleeve 15.

This further middle pipe section 8' is followed by the lower pipe section 9. At least at its upper end, this has the same inside diameter and the same outside diameter as the other middle pipe section 8', and here too, as between the sections 8 and 8' , A guide pin 17 is arranged. At the lower end, the lower tube section 9 generally has a tip 23 pushed on figure 3 the section A is off figure 2 shown in detail. Here it can now be seen how the external fixing mechanism 10' is designed; it does not have a clamping lever but a rocker 28, which will be described in detail further below. Is possible, for example, a construction as in the WO 2018/224417 is described.

It is now essential that the end pin 34, which is fastened in the second pipe section 8 with a fastening section, has a neck area 34b, which provides the aforementioned cylindrical guide section. As a separate element, the terminating pin also has a head region 34a in the form of a separate element, which is fastened with a fastening section 34d in the neck section 34b. There is a collar 34c between the head area and the neck area. It is now important that the cylindrical guide section of this end pin 34 has a front guide section 30 whose outside diameter is only slightly smaller than the inside diameter of the following pipe section 7, and a rear guide section 31 whose outside diameter is also only slightly smaller than the inside diameter of the following pipe section 7. In between there is a circumferential cylindrical recess 29, which also has a cylindrical lateral surface. This recess 29 has an outer diameter which is smaller than the outer diameters of the front and rear guide sections, as described above.

figure 4 shows the next connector below according to section B in figure 2 . Here there is now a guide pin 17 which engages in the interior of the second tube section 8 . The guide pin 17 also has a conically tapering area 18 which is designed as a separate component and is fastened with a fastening section 38 in the actual guide pin. Here, too, the cylindrical outer surface of the journal area 49 has a circumferential depression 33 which separates the cylindrical outer surface into a front guide section 35 and a rear guide section 36 .

figure 5 shows section C in figure 2 . The plug connection is analogous here as in figure 4 shown trained.

In figure 6 is in detail the section Z from figure 3 shown, but now the composite state is shown. Here it can be seen how the head area 34a is followed by a collar 34c separated from the actual neck area 34b. It can also be seen how the detent 53 at the end of the rocker 28 engages in a circumferential notch 39 which is provided in the end pin, specifically between a support flange 40 and the actual neck area 34b. It can also be seen how a beveled flank is provided as a transition region 50 between the cylindrical lateral surface of the peripheral depression 29 and the respective guide section 30 or 31 .

figure 7 shows the detail Y according to figure 4 respectively applies analogously to figure 5 Here, too, the transition area 50 can be clearly seen, as well as the fact that a cavity 51 is formed between the cylindrical inner surface of the outer tube 8 and the cylindrical lateral surface of the circumferential depression 33, which cavity is largely responsible for the advantages mentioned, among other things. It can also be seen how the guide pin 17 is fastened with a fastening section 37 in the following tube 8'. In this case, there is no circumferential flange between the two tubes 8 and 8' at the guide pin 17, but the two tubes are butted flush at their end when plugged together. REFERENCE LIST 1 folding stick 2 stick grip 3 holding lug 24 lace element 4 slot 25 rubber buffers 5 release button 26 adjustment lever 6 grip area of 2 27 Mounting element or upper mounting pin for 16 7 first pipe section 7' another supreme pipe section 27' cones 8th second pipe section 28 seesaw from 10' 8th' another middle 29 Circumferential indentation in 34b pipe section 30 front guide portion of 34b 9 lowest pipe section 10 outboard 31 rear guide portion of 34b clamping mechanism 10' outboard 32 stick axle fixing mechanism without 33 Circumferential deepening in 49 folding lever 34 final spigot 11 clamping lever 34a Header area of 34 12 clamping axle 34b neck area of 34 13 circumferential holding area of 10 34c collar of 34 34d Attachment portion of 34a 14 slotted clamping range of 10 35 front guide section of 49 15 upper pipe end sleeve 36 rear guide section 16 pull rope from 49 17 Guide pin or plug connection 37 Mounting element or fastening section of 17 18 tapered area of 17 38 39 Fastening section of 18 circumferential notch in 34 19 lower 40 support flange pipe end sleeve 42 Axis of rotation from 28 20 Contact surface from 19 to 21 43 return spring 21 Support flange from lower bracket of 17 49 Cone area from 17 50 transition area 22 Contact surface from 21 to 19 51 cavity 23 stick tip 52 inner space 53 Detent from 28 guide section I axial length of the circumferential depression L axial length of the cylindrical

Claims (15)

Folding pole (1) with at least three, preferably at least four, tube sections (7-9), with the tube sections (7-9) being connected to one another in the assembled state of the folding pole (1) via plug-in connections aligned along the pole axis (32), and at least two tube sections (8, 8', 9) are only connected to one another via a movable connecting element (16) in the folded state, and a stick handle (2) is arranged on an uppermost tube section (7) and a pole tip (23) is arranged, in which at least one of the plug-in connections is realized via an external clamping mechanism (10), in which the clamping mechanism (10) is attached to a first pipe section (7), and in which a second pipe section (8) has a smaller or almost the same outside diameter has how the inner diameter of the first pipe section (7), and which is movably mounted in the first pipe section (7), can be fixed in the relative axial position by the external clamping mechanism (10),
or that at least one of the plug-in connections is realized via a form-fit locking device (10') on a second pipe section (8), the second pipe section (8) having a smaller or almost the same outside diameter as the inside diameter of a first pipe section (7), and in the first pipe section (7) can be inserted and fixed in the relative axial position by the form-fit locking device (10'), the further plug-in connections following below being designed as pure plug-in connections (17, 34), in which pipe sections (8, 8', 9) are only fixed in one axial direction when plugged together, wherein the tube sections (7-9) are connected to one another via at least one traction cable (16), which is attached to the bottom tube section (9) and to the first or top tube section (7) and/or to the stick handle (2) and through which Interior space (52) of the at least two central pipe sections (8, 8') is arranged to run, and wherein the folding stick (1) is designed such that it is folded from the State can be brought into the assembled state by the other plug-in connections (17,34) are plugged together, and then with the external clamping mechanism (10) released or with the locking device (50) released, the second pipe section (8) extending so far is pulled out of the first pipe section (7) until the traction cable (16) is under tension, and by the external clamping mechanism (10) or the form-fit locking device (10') being fixed, characterized in that at least one of the plug-in connections (17, 34) has a guide pin (17) with a cylindrical guide section (34b, 49) with a smaller or almost the same outside diameter as the inside diameter of the following pipe section to be connected, and with a length (L) in the range of 10-100 mm, the cylindrical guide section (34b, 49) having at least one circumferential recess (29,33) in its cylindrical lateral surface with a length (l) in the range of 5-50 mm, so that a front guide section (30,35 ) and a rear guide section (31,36) of the cylindrical guide section (34b, 49) is formed, the circumferential recess (29,33) having a cylindrical lateral surface with an outer diameter which is in the range of 0.1-2.0 mm less than that Outer diameter of front and rear guide sections. Folding pole according to Claim 1, characterized in that the cylindrical guide section (34b, 49) has a single circumferential depression (29, 33), preferably with an axial length (l) in the range of 7-50 mm, particularly preferably in the range of 10 -30mm. Folding pole according to one of the preceding claims, characterized in that the cylindrical guide section (34b, 49), namely the front guide section (30,35) and the rear guide section (31,36), have an outside diameter in the range of 5-20 mm, preferably in the range of 10-18 mm. Folding pole according to one of the preceding claims, characterized in that the front guide section (30, 35) and/or the rear guide section (31, 36) have a length in the range of 2-30 mm, preferably in the range of 5-15 mm. Folding stick according to one of the preceding claims, characterized characterized in that the peripheral recess (29,33) has a cylindrical lateral surface with an outer diameter which is in the range of 0.5-1.5 mm, preferably in the range of 0.75-1.25 mm, smaller than the outer diameter of the front and rear guide section. Folding stick according to one of the preceding claims, characterized in that the cylindrical guide section (34b, 49) consists of metal, preferably stainless steel, aluminum, magnesium, a light metal alloy or composite materials such as preferably glass fiber reinforced plastic or carbon fiber reinforced plastic, based in particular on polyamide or cross-linked resin, and wherein the peripheral depression is preferably produced in a milling process, a turning process, a grinding process or a combination of such processes. Folding pole according to one of the preceding claims, characterized in that the transition (50) between the front guide section and the circumferential recess and/or between the rear guide section and the circumferential recess is formed by a beveled or rounded edge (50). Folding stick according to one of the preceding claims, characterized in that all other pure plug-in connections (17, 34) of the folding stick, preferably all plug-in connections, have a peripheral depression according to claim 1. Folding pole according to one of the preceding claims, characterized in that the further plug-in connections are designed in such a way that on one tube section they have a guide pin (17) which is provided with an axially running central passage opening for the traction cable (16) and which has a fastening section (37) is fastened in this pipe section and has a cylindrical guide section (49) that can be pushed into the other pipe section axially opposite, with a preferably radially circumferential, outwardly directed support flange (40) being provided between the fastening section (37) and the spigot area (49), which in plugged together is brought into axial abutment with the tube end of the other tube section and/or with a tube sealing collar (19) provided thereon, this axial stop preferably being designed asymmetrically around the pole axis, and/or wherein more preferably, the cylindrical guide section (49) has an at least partially conically tapering area (18) or a closing pin (34) at its end facing the other pipe section. Folding pole according to one of the preceding claims, characterized in that the first tube section (7) is the uppermost tube section and that the second tube section (8) is the first middle tube section (8) adjoining it downwards, the at least one plug-in connection having a external clamping mechanism (10) is realized. Folding pole according to one of the preceding claims, characterized in that the first tube section (7) is the topmost or second-top tube section, and that preferably the second tube section (8) is the first middle tube section (8) adjoining it downwards, and that the at least a plug-in connection between the first pipe section (7) and the second pipe section (8) is realized via a positive locking device (10'), the locking device (50) preferably having a spring-loaded radial locking pin or a locking lug (53) which preferably presses against the Effect of a spring element (43) projecting in a radial through bore of the second pipe section (8) or in a circumferential groove (39), preferably the plug connection (34), is held, or an internal locking device. Folding pole according to one of the preceding claims, characterized in that the first pipe section (7) is the second pipe section from the top, and that the second pipe section (8) is the first central pipe section (8) adjoining it downwards, and that the at least one plug-in connection between the first pipe section (7) and the second pipe section (8) via a form-fit locking device (10'), the locking device (50) preferably having a spring-loaded radial locking pin or a locking lug (53) which preferably counteracts the action of a spring element (43) projecting in a radial through hole of the second pipe section (8) or in a circumferential groove (39), preferably the plug connection (34), or an internal locking device,
and wherein the top pipe section (7') can be fixed in different lengths via an external clamping mechanism (10) to the second pipe section (7) pushed into the top pipe section (7'). Folding pole according to one of the preceding claims, characterized in that the further plug-in connections are designed in such a way that in the axial stop position they are secured against relative rotation of the tubular sections connected thereto about the pole axis, preferably by ensuring a form-fitting connection which is also preferably locked automatically when the connectors are pushed together. Folding pole according to one of the preceding claims, characterized in that it additionally has a length adjustment mechanism, preferably an external clamping mechanism which acts by means of a force fit or form fit, for adjusting the length of the pole. Folding pole according to one of the preceding claims in the form of a trekking pole, a Nordic walking pole, a skiing pole or a cross-country skiing pole.

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