EP2670495B1 - Ring for touring skisticks that fold in the direction of the stick head - Google Patents

Description

TECHNICAL AREA

The present invention relates to a stick plate for a ski pole, cross-country ski pole, trekking pole, Nordic walking pole or hiking pole, especially for a ski pole for touring.

STATE OF THE ART

Especially with ski tours, it is important for the ascent but also for the downhill to have ski poles available that are as robust and reliable designed. Such sticks can be telescopic, and they usually have at the top of a handle and at the bottom of a stick plate.

The stick plate is equipped with the largest possible plate surface, so especially when traces in z. B. soft snow through the large support surface with the large cross-section good support when inserting the stick is possible. Depending on the conditions, it would be desirable to have different sizes of plates available, but in practical terms, this often proves to be hardly feasible, especially since care must be taken in ski touring as low as possible, and it is not desirable material for to have to carry different conditions.

So it must be a compromise from the largest possible plate on the other hand sufficiently good manageability can be found. In particular, it is problematic with large plates that, especially when a layer of ice or hardened snow is formed on the surface as a result of the transformation of the snow, the stick breaks out again during the ascent as well as during the descent to be able to pull out of the snow, get caught in this so-called hammock layer. The problem is complicated by the fact that the stick is usually inserted in a vertical or even forward position, then a Forward movement of the ascending resp. the departing takes place, and then the stick, after, as it were, the stick tube has moved forward in a slot to be pulled out again. Thus, the stick is pulled out in an area that has not already been pierced by the plate, and it must accordingly also when pulling out the whole overlying snow layer and also, for example, an optionally existing hard snow layer resp. Ice layer to be plowed through. This is uncomfortable during the ascent and can lead to balance problems on the descent, which can even be life-threatening for the touring skier, especially on difficult terrain.

DE1946670 discloses a stick plate with a plate portion, which is designed foldable at least partially in the direction of a pole tip in a folded state, and in the opposite direction to a stop, in which the plate area forms a flat or only slightly curved plane, can be opened.

PRESENTATION OF THE INVENTION

It is accordingly one of the objects of the present invention to provide an improved stock plate, in particular for use in particular in substantially unpressed snow or harsch snow, which is capable of avoiding or at least mitigating the abovementioned disadvantages.

Accordingly, the present invention relates to a stick plate with the features of claim 1, respectively a stick, in particular a ski pole for the touring area, with such a stick plate.

Specifically, it is about the improvement of a stick plate for a ski pole, cross country ski pole, trekking pole, Nordic walking stick or hiking stick, especially for a ski pole for the touring area, the stick plate has a flat plate area. In particular according to the invention, such a stick plate is designed to be improved in that the plate region is designed to be foldable at least partially in the direction of a pole tip into a folded state, and in the opposite direction to a stop in which the plate region forms a flat or only slightly curved plane , Can be opened, and by the stick plate by a force acting on an upper side (ie the tip side) of the plate area force is transferred to the folded state, and when releasing this force automatically in the open state or at least in the half-open state returns. In the latter case, the plate opens again when hitting the snow layer again by the back pressure of the edition.

In other words, the stick plate is designed so that when it penetrates deep into the snow, when pulling through the snow mass lying above or one above lying ice layer (Harsch) is folded down to some extent down (so it is enough already a comparatively small force to fold the stick plate together), whereby the cross-section is reduced. Accordingly, the stick or the stick plate now no longer with its full cross-section of the snow or through an ice layer must be pulled through, but now has a much smaller cross-section and cuts to some extent essentially free of resistance and thus in a pleasant way for the user by itself through the overlying material layers. Once arrived on the top of the snow layer, the stick plate unfolds automatically due to the provided in the stock plate restoring force back to the open or half-open state (or a state in between), returns to its original optimal cross-section, and thereby relies on the next touchdown on the Snow layer with the optimal effectiveness.

A first preferred embodiment of such a stick plate is characterized in that the plate region has at least two, preferably exactly two, plate plates which can be folded in the direction of the tip of the stick (that is to say downwards). In particular, if exactly two such plate wings are arranged and these are hinged to a common or two substantially parallel or at an acute angle arranged hinges to the pole tip, so to speak forms a cutting edge, which can be optimally pulled up from the snow layers.

In this case, according to the invention, the plate region has a fastening plate that can be connected essentially rigidly to a pole tube, on the underside of which or alternatively at the edge thereof the plate wings are articulated. In this case, the mounting plate covers the plate wings in the hinge area on the upper side at least partially, preferably completely with a covering area. This ensures that the snow (or the ice or about accumulating and then due to at least one hinge movement compressing and thus eventually icing snow), which pushes from above when pulling out on the stick plate, not in the hinge area, not in the movement joints, so the released when folded down the leaf panels joint area of the hinge, can penetrate and thus block the hinge, and the refolding of the plate wings by the mentioned restoring force in the plate-underside pressure optimal, at least partially open plate position disturbs or even
prevented. Alternatively (or additionally), it is possible, especially if the plate wings are laterally attached to such a mounting plate, to protect the hinge on top of a cover such as a movable tab or a movable band which covers at least the hinge to provide. For example, this cover may be an elastic film which at least partially spans the top of the plate. In this case, the cover, which can also be provided as a molded part, be fastened by fastening elements such as rivets or the like on the top of the plate. It is also possible to use a mold-integrated clamping, snap-fastening or otherwise composite or a combination of means for fixing this cover. This attachment can also be made detachable, so that a replacement of any damaged cover is easily possible.

In this case, however, the cover should allow the intended folding of the stock plate by granting the corresponding freedom of movement, which can be achieved for example by an elastic and / or accordion-like and / or a similarly shaped expansion fold in the coverage area around the movement joint or the hinge area. It is important to ensure that the restoring force is kept to a minimum, so that the sunken stock plate folds when pulled out as intended. In principle, it is also important to pay attention to the use of materials which retain their properties even at low temperatures (ie about -30 ° C). Thus, for example, an elastic film is to be used whose embrittlement point is below the prevailing at the intended use of the stock plate temperatures.

In this case, it may also be that the movement gap opens down, in which case when pressing the stick plate on the snow or ice material passes from below into the movement joint or the hinge area and then possibly the hinge movement, as explained above, bothers. The skilled person then results from the technical solutions described above, as they are to be applied in such a case.

It may also be advantageous if the cover hermetically seals at least the region of the expansion joints at least upwards (and / or downwards), ie at least in the direction from which material can penetrate.

It is also conceivable that this cover, in addition to the protective effect for the movement joints of the hinge before penetrating material, the said restoring force for the folding back down flap plate provided at least partially. An elastic cover, for example, which covers at least the area around the movement joint or the hinge area and is stretched during the folding of the stick plate by the rising of the movement joint, the energy absorbed by the elastic deformation, for example, at least partial recovery of the plate wings after the elimination of Release the fold causing the pressure.

Moreover, means for evacuating the movement joints, for example in the form of correspondingly designed edge geometries, which clear the compressed snow when resetting the panel wings to the outside, can be provided.

Preferably, the aforementioned overlap area simultaneously serves as an upper stop for the opened state.

According to a further preferred embodiment, two plate wings are fastened on the underside of the fastening plate facing the tip of the pole by the plate wings being fastened on their underside with a hinge.

In this case, normal hinge can be used, i. one in which separate parts are connected via a hinge axis element (hinge rod). In order to simultaneously ensure the return force for the return to the open or half-opened state, a leaf spring or another elastic element is preferably provided in this case. It is also conceivable that the aforementioned cover is attached, which then provides the restoring force as explained above.

Alternatively, a film hinge, if necessary with appropriate cover. can be used, such can then, in a suitable embodiment, equal to ensure the elastic return.

The plate wings can therefore be fastened with a film hinge to such a mounting plate. This film hinge can be made of a full elastic plastic material and / or a plastic strip material (braided, woven) and / or of a fiber-reinforced plastic material resp. consist of fiber reinforced rubber elastic material, or include such. In this case, it is preferable to choose as the material, which on the one hand survives many cycles of motion, which remains sufficiently flexible over the life and still provides sufficient restoring force (preferably, the film hinge acts both as a hinge and by its elastic inherent stiffness as a restoring element), and which is able to maintain these properties, especially at low temperatures (typically up to temperatures of -30 ° C). Possible Materials are, for example, thermoplastics.

Preferably, two hinges for two plate wings are realized via a plastic layer attached to the underside (or a corresponding strip material), which extends over both hinge regions.

As a cover, for example, a film or skin made of silicone, or a similar, cold-elastic, but abrasion-resistant elastomeric material placed over the movement joints and attached to the wing and advantageously to the mounting plate as mentioned above.

According to another preferred embodiment, the attachment plate has an elongated shape and extends substantially over the entire diameter of the pole plate, and wherein the long axis of the attachment plate preferably extends along a direction of travel.

The mounting plate may be centrally mounted on the pole or on a provided for attachment to a pole tube mounting portion and / or be formed on this, but preferably it is attached in the region of one of its peripheral ends with the pole.

At the top of the mounting plate facing away from the stick top, at least one, upwardly extending rib or a comb may be provided so that the stick plate even better cuts out of the snow or from the ice, which preferably over at least half of the length In particular, the attachment plate preferably extends over at least two-thirds of the length of the attachment plate and parallel to it.

The plate area is preferably formed asymmetrically with respect to the pole axis, in particular by the attachment of the pole tube in the direction of forward offset is provided.

The plate area is further preferably formed slightly concave towards the pole tip, wherein preferably the axis of the concave curvature is arranged parallel to a longitudinal axis of a mounting plate (and thus parallel to the running direction), on which the foldable elements of the plate area are articulated.

A further preferred embodiment of the floor plate proposed here is characterized in that the plate area has exactly two, in the direction of the pole tip foldable plate wings, which are hinged to a common or two parallel or arranged at an acute angle hinges to the pole top, wherein the plate wings are arranged in the folded state substantially parallel to each other and adjacent to a pole tip area.

The stick plate may be further characterized in that it is connected to a mounting area for the pole tube, and a tip extension and / or integrally formed with these elements, wherein preferably the pole tube in a top blind hole recess in the mounting area fastened (positive engagement and / or adhesion and / or adhesion).

The plate area further preferably has at least two plate wings foldable in the direction of the tip of the pole, which plates are hinged around a common or two hinges arranged parallel or at an acute angle to the tip of the pole, the plate wings having recesses.

Furthermore, the present invention relates to a ski pole, cross-country ski pole, trekking pole, Nordic walking stick or walking stick, especially ski pole for the touring area, with a stick plate with the above-mentioned respectively claimed at the end characteristics.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

einen faltbaren Stockteller in unterschiedlichen Darstellungen, im geöffneten, vollständig aufgefalteten Zustand, wobei in a) eine Ansicht von vorne dargestellt ist, in b) eine Seitenansicht, in c) eine Ansicht in Laufrichtung von hinten, in d) eine Aufsicht von oben, in e) eine Aufsicht von unten, in f) ein axialer zentraler Schnitt wie in a) durch die Linien A-A dargestellt, in g) ein Schnitt durch den hinteren Stocktellerbereich in einer Ebene B-B wie dargestellt in Figur 1b), in h) eine perspektivische Ansicht von vorne schräg oben und i) eine perspektivische Ansicht von schräg unten;

Fig. 2

unterschiedliche Ansichten dieses faltbaren Stocktellers im halbgefalteten Zustand, wobei in a) eine Ansicht von vorne, in b) eine Ansicht von hinten, in c) ein Schnitt entlang der Ebene D-D in Figur 2d), in d) eine Seitenansicht, in e) eine perspektivische Ansicht von schräg oben und in f) eine perspektivische Ansicht von schräg unten dargestellt ist; und

Fig. 3

unterschiedliche Darstellungen des faltbaren Stocktellers im vollständig zusammengefalteten Zustand, wobei in a) eine Ansicht von vorne, in b) eine Ansicht von hinten, in c) eine Schnittdarstellung entlang der Ebene F-F in Figur 3d), in d) eine Seitenansicht, in e) eine perspektivische Ansicht von schräg oben, in f) eine perspektivische Ansicht von schräg unten und in g) eine Aufsicht von oben dargestellt ist.

Preferred embodiments of the invention will be described below with reference to the drawings, which are given by way of illustration only and are not to be interpreted as limiting. In the drawings show:

Fig. 1

a foldable stick plate in different representations, in the opened, fully unfolded state, wherein in a) a view from the front is shown in b) a side view, in c) a view in the running direction from behind, in d) a top view, in e) a bottom view, in f) an axial central section as in a) represented by the lines AA, in g) a section through the rear paving area in a plane BB as shown in FIG FIG. 1b ), in h) a perspective view obliquely from the front above and i) a perspective view obliquely from below;

Fig. 2

different views of this foldable stick plate in the half-folded state, where in a) a view from the front, in b) a view from behind, in c) a section along the plane DD in Figure 2d ), in your Side view, in e) is a perspective view obliquely from above and in f) is a perspective view obliquely from below; and

Fig. 3

different representations of the foldable stick plate in the fully folded state, where in a) a view from the front, in b) a view from behind, in c) is a sectional view along the plane FF in 3d figure ), in d) a side view, in e) is a perspective view obliquely from above, in f) is a perspective view obliquely from below and in g) is a top view.

DESCRIPTION OF PREFERRED EMBODIMENTS

In the figures, an embodiment of such a foldable stick plate is shown, wherein in FIG. 1 in different representations the fully opened state is shown in FIG FIG. 2 a half folded state and in FIG. 3 a fully folded state in which the stick plate has the smallest cross section. Like reference numerals in the figures indicate the same elements.

Im in FIG. 1 illustrated open state of such a stick plate 8, the stick plate has the largest cross-section. If the stick plate is not manipulated from the outside, then it is in this opened state, ie if it is folded and then released or corresponding forces are removed, the stick plate automatically jumps into the open position FIG. 1 illustrated opened or unfolded state.

Specifically, such a stick plate 8 can be realized by a top attachment 1 is provided on a pole tube 2. This tip attachment 1 typically has an upper attachment region 6 and a lower-side tip extension 5, at the lowest end of which a hardened tip 7 is embedded. From above, the upper attachment region 6 has a blind hole, in which the lowermost end of the here-butted pole tube 2 is embedded, typically glued or pressed. On this, usually made of plastic tip construction (the hardened tip 7 is of course typically made of a hardened metal), the actual stick plate attachment 8 is now placed. So that different stick plates can be put on, such a tip attachment typically has an external toothing 19 in the upper third (cf. FIG. 1f ), which is encompassed by a plastic element 4 or a circumferential sleeve of the actual Stocktellers 8. Different stock plates can be postponed according to such a top attachment 1 from below to a stop on the upper mounting portion and engage in a sense by the teeth 19, which on the outside of the tip extension portion 5 and corresponding in the opposite direction on the inside of the recess are provided in the plastic element 4.

The stick plate 8 now comprises integrally formed on or attached to the plastic element 4, a mounting plate 9, which, based on a running direction 20, to some extent extends back, this plate 9 is trapezoidal in this embodiment configured with rounded corners (see Figure Id). The mounting plate 9 has a greater length in the direction of the width than the width transverse to the direction, and is in the direction of the front wider than in the direction of the rear, since the stick tube resp. the plastic element 4 is provided as close as possible to the front end.

On the upper side, the fastening plate 9 has an upwardly extending upper-side rib 10, which, as already explained above, can contribute to the fact that the stick plate can be cut as efficiently as possible through overlying layers when it is pulled out.

On the mounting plate 9, two plate wings 11 are articulated on the bottom. These plate wings 11 extend with respect to the direction of travel 20 on two sides and can be folded downwards (see. Figures 2 and 3 ). They are mounted on the underside of the mounting plate 9, arranged by directly below the mounting plate a rigidly mounted mounting portion of a material having the same material thickness as that of the plate wings 11 is provided. This rigidly mounted mounting portion 14 is fastened with fastening rivets 13 or screws from below to the mounting plate 9. Laterally of this support portion 14 with arranged parallel to the edges of the support portion edges the two wing-like plate wings 11 are arranged, which are not directly attached to the mounting plate 9, but indirectly via a provided below layer 15 of hinge material are attached thereto. The hinge material layer 15 extends on the one hand over the entire underside of the support portion 14 and is attached to the above-mentioned rivets 13 on the rigid mounting plate, but also extends laterally even further and beyond the bottom of the plate wings partially out, so that the layer 15 the area at which the adjacent edges of plate wings 11 and Adjacent support area 14, covered on the underside. The plate wings 11 are also attached to this hinge material layer 15 via fastening rivets 16.

Of course, the fastening rivets 13/16 can be replaced by other attachment options such as gluing, sewing or the like, also it is possible to design the elements 14, 15 and 11, for example, in one piece as a single injection molded part.

This leaves between the plate wings 11 and the support portion 14, a gap 18 which is open at the top and is bridged by the hinge material 15 below. However, the upwardly open region 18 is covered by a covering region 17, which projects laterally beyond the hinge region, of the fastening plate 9. This ensures that no snow from above can penetrate into the gap 18 and thus the hinge can be blocked, and also the cover area 17 simultaneously acts as a stop for the plate wings 11, ie the plate wings 11 can indeed be folded down around the film hinge (especially in Figure 1g recognizable), but can not be folded further upwards, since they come into abutment in their edge area with the covering area 17.

The two plate wings 11 can in other words from the in FIG. 1 not shown up position, ie opposite to the direction of the pole top, to be moved upwards, but they can, if you press from the top of the top, are folded down against a restoring force. They then move wing-like down, in FIG. 2 is a half folded down state of the two plate wings 11 shown. Here it can be seen how the wedge-shaped arrangement of the plate leaf 11 and the wedge-shaped rib region 10 arranged on the upper side to some extent forms a cutting edge already in this half-folded state. Thus, if such a stick plate is pulled out of the snow, move due to the pressure of the snow above the plate wings 11 against the elastic restoring force down, thus successively reduces the cross section and the stick can be easily pulled up.

The fully collapsed state is in FIG. 3 shown. Here, the wings 11 are folded down so far that they even come into abutment with the tip extension region 5. This reduces the cross-section of the stick plate to a minimum, as in particular FIG. 3g ) can be detected. If the power of the snow is big enough, such a folded stick plate can effortlessly too can be pulled out of hard snow with an optionally existing layer of ice over it largely without problems, without being hooked. In addition, as a result of the clever arrangement of the covering area 17, even in the folded state, it is largely ensured that no snow or ice can penetrate into the slot 18 of the film hinge, which to some extent opens up to a certain extent. This ensures that the hinge is not blocked by penetrating ice or penetrating snow. In addition, a further flexible protective layer can be provided over the hinge area 18 if this effect is to be further reduced.

From the folded state 3, in which the stick plate only remains when the plate wings 11 are actively pressed together, the stick plate automatically jumps back into the open position as in FIG. 2 due to the restoring force of the film hinge FIG. 1 shown when it is released, or when the snow load on it is no longer present. Thus, the stick plate automatically returns to the re-insertion of the stick in the snow suitable state with the large cross-section, respectively. the large support cross-section, as in Fig. 1 shown. LIST OF REFERENCE NUMBERS 1 lace top and 15 at 9 2 stock pipe 14 rigidly mounted mounting area 3 pole axis 4 Plastic element of 8 15 Hinge material 5 Tip extension of 1 16 Rivets from 11 to 15 6 Upper mounting area of 1 17 Coverage area of 9 over 18 7 hardened tip of 1 8th stock plate 18 Slot between 14 and 11 9 Mounting plate of 8 19 gearing 10 upper rib on 9 20 direction 11 Door leaf 12 Recesses in 11 13 Fixing rivets of 14

Claims (14)

1. Pole basket (8) for a ski pole, cross-country pole, trekking pole, Nordic walking pole or hiking pole, particularly for a ski pole intended for the touring sector, in which the pole basket (8) has a flat surface area (9,11,15),
   wherein
   at least some sections of the basket region (9,11,15) can be folded towards a pole tip (5,7) and conversely in the opposite direction up to a stop where the basket region forms a flat or only minimally curved plane, and in that the pole basket (8) is folded by means of a force acting on the top of the basket region (9,11), and in that when this force is removed, it returns to the open position independently wherein the basket region (9,11,15) features exactly two basket wings (11) that can be folded in the direction of the pole tip (5,7) and which are arranged to be foldable around a joint hinge, two parallel hinges or hinges arranged at a sharp angle towards the pole tip (5,7), and wherein the basket region (9,11,15) has a mounting plate (9,14) that can be rigidly connected to a pole shaft (2); the basket wings (11) are joined to the bottom of this mounting plate (9,14), which at least partially covers the basket wings (11) on the top in the hinge area (18) with a cover section (17), where the cover section (17) also functions as the upper stop for the opened state at the same time.
2. Pole basket (8) according to claim 1, characterized in that the mounting plate (9,14) completely covers the basket wings (11) on the top in the hinge area (18) with a cover section (17).
3. Pole basket (8) according to one of the preceding claims, characterized in that two basket wings (11) are attached to the bottom of the mounting plate (9,14) facing the pole tip (5,7), the basket wings (11) being attached to this bottom by a hinge (15), preferably a film hinge (15).
4. Pole basket (8) according to claim 3, characterized in that the basket wings (11) are attached with a film hinge (15) that consists of a fully elastic synthetic material and/or synthetic ribbon material and/or fiber-reinforced synthetic material, preferably resulting in two hinges for two basket wings (11) connected through a synthetic layer (15) attached on its underside and extending across both hinge sections.
5. Pole basket (8) according to one of the preceding claims, characterized in that the mounting plate (9,14) has an elongated shape and essentially extends across the entire diameter of the pole basket (8), where the long axis of the mounting plate (9,14) extends along a direction of movement, and where the mounting plate (9,14) in the area of one of its edges is preferably attached and/or adapted to the pole shaft (2) or to a mounting area intended for the attachment to a pole shaft (2).
6. Pole basket (8) according to one of the preceding claims 3-5, characterized in that there is at least one rib (10) located on the upper face of the mounting plate (9,14) facing away from the pole tip (5,7) and extending towards the top, which preferably extends across at least half of the length of the mounting plate (9,14), preferably across at least two thirds of the length of the mounting plate (9,14).
7. Pole basket (8) according to one of the preceding claims, characterized in that the basket region (9,11,15) has an asymmetrical design with respect to the pole axis, especially with the attachment of the pole shaft (2) facing forward in the direction of movement.
8. Pole basket (8) according to one of the preceding claims, characterized in that the basket region (9,11,15) is shaped with a slightly concave curvature, where the axis of the concave curvature is preferably parallel to one of the longitudinal axes of a mounting plate (9,14), which the foldable elements (11) of the basket region (9,11,15) are joined to.
9. Pole basket (8) according to one of the preceding claims, characterized in that the basket region (9,11,15) features exactly two basket wings (11) that can be folded in the direction of the pole tip (5,7) and which are arranged to be foldable towards the pole tip (5,7) around a joint hinge (15), two parallel hinges (15) or hinges (15) arranged at a sharp angle towards the pole tip (5,7), where the basket wings (11) are essentially parallel to each other when folded and positioned to lie against a section of the pole tip (5).
10. Pole basket (8) according to one of the preceding claims, characterized in that it is joined to a mounting area (6) for the pole shaft (2) as well as an extension (5) of the tip, and/or constructed in one piece with these elements, where the pole shaft (2) is preferably attachable in a blind hole recess in the top of the mounting area (6).
11. Pole basket (8) according to one of the preceding claims, characterized in that the basket region (9,11,15) features at least two basket wings (11) that can be folded in the direction of the pole tip (5,7) and which are arranged to be foldable towards the pole tip (5,7) around a joint hinge, two parallel hinges or hinges arranged at a sharp angle, wherein the basket wings (11) have recesses (12).
12. Pole basket (8) according to one of the preceding claims, characterized in that the hinge area (18) is at least partially covered and protected against material entering it by a cover that extends from the mounting plate (9,14) or the cover section (17) towards the corresponding basket wing (11), preferably a silicon foil or a form element with an elastic pleat and/or an elastic pleat that is at least partially folded in a compressed state, or an accordion-like elastic pleat, where the cover is preferably elastically adaptable, so that the cover collects energy when the pole basket (8) is folded into its folded state, which will then be released again after the force acting on the upper face of the basket region (9,11) is discontinued so that the pole basket (8) returns independently into its open state.
13. Pole basket (8) according to one of the preceding claims 1-12, characterized in that an elastic element, especially a plate spring or a material section with a similar effect is made available to provide the force for the independent return of the pole basket (8) to its open state.
14. Ski pole, cross-country pole, trekking pole, Nordic walking pole or hiking pole, particularly a ski pole intended for the touring sector, with a pole basket according to one of the preceding claims.

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