EP3744207A2 - Système économisant les forces composé d'un crampon et d'une chaussure - Google Patents

Système économisant les forces composé d'un crampon et d'une chaussure Download PDF

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Publication number
EP3744207A2
EP3744207A2 EP19020347.1A EP19020347A EP3744207A2 EP 3744207 A2 EP3744207 A2 EP 3744207A2 EP 19020347 A EP19020347 A EP 19020347A EP 3744207 A2 EP3744207 A2 EP 3744207A2
Authority
EP
European Patent Office
Prior art keywords
crampon
shoe
prong
web
parts
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.)
Pending
Application number
EP19020347.1A
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German (de)
English (en)
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EP3744207A3 (fr
Inventor
Christoph Klein
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP19020347.1A priority Critical patent/EP3744207A3/fr
Publication of EP3744207A2 publication Critical patent/EP3744207A2/fr
Publication of EP3744207A3 publication Critical patent/EP3744207A3/fr
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00—Non-skid devices or attachments
    • A43C15/06—Ice-gripping devices or attachments, e.g. ice-spurs, ice-cleats, ice-creepers, crampons; Climbing devices or attachments, e.g. mountain climbing irons
    • A43C15/068—Climbing devices or attachments, e.g. glacier crampons, mountain climbing irons
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0054—Footwear characterised by the material provided with magnets, magnetic parts or magnetic substances
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes

Definitions

  • the invention relates to a system of crampons and shoes and is designed so that the mountaineer can move around with as little effort as possible on a tour.
  • a mountain tour that requires crampons usually has different parts, such as a hiking trail in the lower area of the mountain and ice passages higher up, which can be flat or steep.
  • a crampon which can be attached to a shoe.
  • the crampon has a fastening device in the rear heel area, which consists of two wire ropes and a rocker arm.
  • a holding strap is arranged on the rocker arm so that the crampon cannot be lost.
  • the main disadvantage of this embodiment is that the shoe sole must be made relatively stiff if the climber wants to stand on the two foremost prongs of the crampon, the so-called frontal spikes, in steep terrain.
  • the object of the present invention is therefore to combine a soft shoe with a crampon in a way that is as energy-saving as possible both in ice-free terrain and in flat as well as steep ice terrain.
  • the invention therefore has three essential features:
  • the first required special feature is that the shoe heel is pressed very forcefully onto the rear part of the crampon despite the softness of the shoe and the shoe sole in order to ensure the necessary stability.
  • the utility model DE 84 05 269 U1 an inner bracket is used because the rocker arm would have to grip a hard lip on the back of the shoe, but this zone in particular should remain soft with a soft shoe in order to be able to roll the shoe easily on an ice-free hiking trail.
  • the inner bracket is smaller than the outer bracket and is rotatably arranged in a receptacle on both sides in or on the shoe sole of the shoe.
  • it is connected to the outer bracket via a connecting joint so that the inner and outer bracket together form an over-center fastening device.
  • the connecting joint is mounted horizontally and can be fork-shaped or trough-shaped. It is attached to one of the two brackets. In a preferred embodiment, the respective other bracket can easily be suspended in the connecting joint. In the hooked-in state, both brackets are moved and pivoted when the connecting joint moves. If the connecting joint is now pivoted in the direction of the shoe upper, a clamping takes place if the two brackets overlap. The overlapping position of the two brackets is called dead center. The resulting clamping force now fixes the crampon to the outsole of the shoe.
  • the fastening device according to the invention thus detachably fixes the crampon to the shoe in the heel area.
  • the crampon has a transverse stirrup in the area of the toe or, for soft shoes, preferably a basket into which the Shoe tip is retractable. This prevents longitudinal movement of the shoe in relation to the crampon.
  • the inner and outer stirrups are permanently connected to the connecting joint and the entire fastening device can only be implemented by unhooking the stirrup ends of the inner stirrup from the receptacle on both sides in the area of the shoe heel.
  • a receptacle on both sides is understood to mean a device which rotatably receives the stirrup and at the same time transfers the clamping force to the sole of the shoe.
  • the receptacle on both sides can, for example, only partially extend from the two side surfaces of the outsole in the direction of the center of the outsole.
  • the inner bracket preferably has a U-shape, the bracket having ends which are bent inwards by 90 ° and which can be inserted into the receptacle on both sides of the shoe.
  • the inner bracket can for example consist of steel, titanium or plastic.
  • the inner bracket is preferably designed to be elastic, as a result of which the two ends can be bent open briefly and then inserted into the receptacle on both sides.
  • the elastic stirrup has the advantage that the inner stirrup can easily be removed again when the crampon is not in use.
  • the receptacle on both sides is tubular and extends over the entire cross section of the outsole or heel.
  • the present invention understands that the receptacle on both sides is designed to be continuous.
  • the bracket can only partially engage in the receptacle on both sides or can also extend through the entire receptacle on both sides.
  • the receptacle on both sides can be designed as a tube or inlay and consist, for example, of steel, titanium, carbon or plastic or of a combination of these materials, for example.
  • the receptacle on both sides can also be designed as two opposing recesses in a clamp.
  • the clamp laterally encompasses both sides of the heel and thereby exerts a horizontally acting clamping force from the sides in the direction of the middle of the heel so that it does not change its position relative to the heel when the crampon is used.
  • the second special feature of the invention takes into account the fact that the crampon should follow the folding movement of the shoe on a flat glacier, but should be stiff in steeper ice so that the climber can find himself in both types of ice terrain can move around with little effort.
  • this second special feature also solves the following problem: According to the current state of material development, a light crampon is ideally made of an alloy, the main part of which consists of aluminum. If the crampon were completely rigid, because you want to climb steeper ice with it, so that in this way the entire shoe-crampon system would be rigid despite the soft shoe, this rigid aluminum crampon would in the long run on flat, especially hard glaciers due to Break fatigue.
  • the hinge also opens up the possibility of completely separating the front and rear parts of the crampon from one another by removing the hinge axis from its bearing, which is firmly connected to the front crampon part.
  • the main purpose of the hinge is that the front and rear of the crampon are rotated around a horizontal axis in relation to each other in flat ice terrain, so that comfortable walking is possible there and the material does not break through fatigue, even if the crampon is mainly made of aluminum.
  • the rear part of the crampon consists of a heel part and a bar.
  • the bar consists of a stiff material and is connected to the heel part in an adjustable and fixed manner.
  • an adjustable, fixed connection means that the bar can be displaced and then locked in the longitudinal direction relative to the heel part, which in turn contains the rear spikes and the receptacles for the outer stirrup, when the crampon is not connected to the shoe , as it corresponds to the prior art, but apart from such an adjustment process, forms a rigid unit with the heel part.
  • the web runs forward in the inner area of the front part of the crampon and forms there, that is, between the rear and front area of the front part of the crampon, with the front part of the crampon at least one hinge with a horizontal axis of rotation.
  • the area in front of the horizontal axis of rotation is referred to in this document as the front area of the front part of the crampon, the area behind the horizontal axis of rotation as the rear area of the front part of the crampon.
  • the rotatability of the front and rear crampon part against each other can be in a embodiment of the invention can be optionally deactivated by at least one behind or in front of the horizontal axis of rotation plate can be pivoted around an axis that is attached to one of the two parts of the crampon mentioned, so that if its axis or its bearing on the front Part of the crampon is attached behind the hinge joint, a lifting of the web against the rear area of the front part of the crampon is blocked by pressing on the web from above, or, if its axis or its bearing on the rear part of the crampon behind the hinge joint is fixed, a lowering of the rear area of the front part of the crampon with respect to the web is blocked by pressing from below on the rear area of the front part of the crampon, or if its axis or its bearing is attached to the web in front of the hinge joint, an elevation of the anterior region of the anterior part ls of the crampon is blocked with respect to the web in that it presses from above on the front area of the front part
  • said rotatability can optionally be deactivated in that at least one latch locks into place along a guide that is attached to one of the two named parts of the crampon by sliding it into a recess in the other part of the crampon.
  • At least one locking pin can be attached to the front crampon part or can be moved horizontally on the front crampon part in such a way that it optionally prevents the web from moving upwards relative to the rear area of the front crampon part, if it is behind the
  • the horizontal axis around which the bar rotates in relation to the front part of the crampon presses on its outer areas from below on the rear area of the front crampon part and in its middle from above on the bar and blocks the so-called rotation, or if it does lies in front of said horizontal axis, presses on its outer areas from above on the front area of the front crampon part and in its middle from below on the web and thus blocks the rotation.
  • the locking pin can be moved from a non-blocking position to the blocking position mentioned, for example, in that it is already slidably attached to the crampon and, if necessary, is moved on the crampon.
  • the locking pin does not necessarily have to run at right angles to the running direction, but can, for example, if the web runs further forward over the horizontal hinge axis, be inserted into a guide in the web from the front against the running direction, in order to prevent the web from being opposite the front part of the crampon moves up and down.
  • Such a locking pin can also be designed as a frontal prong.
  • the hinge can be blocked by a bolt on the front part of the crampon or on the bar that can be moved in the longitudinal direction of the shoe, which can be locked into a receptacle in the other part of the crampon if necessary and which can be locked in either position or not - Can lock, which can be done for example by two magnets located inside the bar, or by the fact that a spring firmly connected to the bar can snap into two different recesses in the latch, each corresponding to one of the two positions.
  • a piece of an elastically flexible material is installed instead of the hinge.
  • the bending effect achieved in this way is desirable in flat ice terrain, but when transitioning to steep ice terrain it can be increasingly deactivated by inserting a rigid sleeve that encloses the piece of elastically flexible material and slides along it by moving the other part of the crampon in the longitudinal direction can be approximated so that by increasingly enclosing the connecting piece made of elastically flexible material, an ever smaller part of the flexible material piece can actually bend and thus the mobility between the two parts of the crampon is reduced continuously or in several steps.
  • a spring which is firmly connected to the web or to the front crampon part and engages in different recesses on the cuff enables the required locking in the selected position.
  • the third feature of the invention relates to the prongs. Because the crampon should be light, it is generally recommended to use an alloy predominantly made of aluminum. But if you walk through rock-strewn ice terrain with aluminum spikes, they are quickly abraded and lose the bite necessary for ice.
  • the lower part of a prong that is to say the tip, is made of a harder material than the stub.
  • a stub to be the upper part of a spike.
  • the stub can also be pointed so that the crampon, if the climber wants to save a lot of weight, can also be used without the tips.
  • the tips are mounted, the stub protrudes less than the tip, and is therefore shorter.
  • both parts of the prong lie flat on top of one another at least in a partial area and are releasably or permanently, that is to say non-releasably, connected to one another in this area.
  • At least one solid or internally hollow pin perpendicular to the contact surface penetrates both parts of the prong in the area of the contact surface by means of two congruent holes in both parts of the prong.
  • the pin can be designed as a screw with a screw head which is screwed into an internal thread in or in an internal thread in a screw nut behind that part of the prong opposite the screw head, so that the screw does not move when the crampon is used can detach itself from the holes and thus enable or strengthen a detachable or permanent connection of both parts of the prong.
  • the pin can also be thickened and / or curved and / or welded or glued to at least part of the prong at its two ends.
  • the upper region of the tip (65) encloses the lower region of the stub (64). This prevents the tip from rotating unintentionally against the stub and is done by means of a gap that corresponds to the material thickness of the stub.
  • the gap is created between on the one hand at least one finger (69), which arises from the tip, and on the other hand the contact surface.
  • the lower region of the stub surrounds the upper region of the tip. This also prevents it from rotating unintentionally against the stub and is done by means of a gap that corresponds to the material thickness of the tip. The gap is created between on the one hand at least one finger that arises from the stub and on the other hand the contact surface.
  • the ends of the fingers are not parallel to one another, but rather touch, or that the ends of the fingers are firmly connected to one another.
  • At least one of the two parts of the prong is bent in at least one of its two side regions. That's how it lies Stub in the area of at least one of its side edges, each in the form of a shoulder on the lower part of the prong and can thus absorb part of the force acting on the tip from the bottom up.
  • this embodiment can also be combined with the aforementioned fingers.
  • the shoe 1 has in the area of the shoe heel 21 a receptacle 3 on both sides, into which the inner bracket 4 can be inserted.
  • the inner bracket 4 is U-shaped, with the bracket ends extending at an angle of 90 ° in the direction of the shoe 1.
  • the temple ends can be inserted into the receptacle 3 and rotatably arranged there.
  • the crampon consists of a front part 26 and a rear part 25 which merges into a connecting web 42 at the front, the connecting web 42 being adjustable in length, but apart from that firmly connected to the rear part 25.
  • the connecting web 42 and the front part are connected to one another via a hinge 27 in such a way that they can be pivoted relative to one another about a horizontal axis in the direction 28.
  • the hinge 27 can be designed in such a way that the front and rear parts can be detached from one another when the shoe is detached from the crampon.
  • the web 42 is folded upwards, i.e.
  • Figure 14 shows, possible because the axis 52 at least in The area of its receptacle 53 does not have a circular cross-section, but its cross-section resembles a circle reduced by one secant, with that segment 71, which is perpendicular to the secant, runs through the center of the circle and is limited on the opposite side by the circular line, being shorter than the minimum height 70 of the insertion channel.
  • the axle 52 which is located at the front of the web 42, cannot detach itself from its receptacle 53 in the front crampon part, since the path 71 is now horizontal and the circular diameter of the axle cross-section is greater than the minimum Height 70 of the insertion channel.
  • the distance 71 is greater than the radius of the axis 52 so that the combination of axis 52 and receptacle 53 can also absorb compressive loads between the front crampon part 26 and web 42 without being permanently damaged .
  • the crampon points out how that Figures 1 and 2 show a plurality of downwardly pointing prongs 63 and preferably one or two frontal prongs 14. It also has two front pegs 9 and two rear pegs 10, which protrude over the top of the crampon and secure the shoe 1 located thereon against slipping sideways. The front pegs 9 also prevent the shoe 1 from slipping forward over the front crampon part 26.
  • the front pins 9 are in the Figures 1, 2 and 5a drawn as firmly connected to the front crampon part 26, but they can also be hung as a bracket in the front crampon part 26, which prevents the shoe 1 from sliding too far forward due to its shape.
  • the fastening device 20 consists essentially of an inner bracket 4, which is connected to the shoe 1, and an outer bracket 5, which is attached to the rear part of the crampon 25.
  • the two brackets 4 and 5 are connected to one another via the connecting joint 6, the connecting joint 6 being firmly connected to one of the two brackets.
  • the outer bracket 5 does not necessarily have to be rigid in all of its parts, since it is mainly subjected to tension. It is also possible that it is not straight when viewed from the side, but rather steeper in the upper part, which is closer to the connecting joint 6, than in the lower part, which is closer to the receptacle in the crampon 13, as in FIG Figure 2 compared to Figure 1 visible.
  • the advantage of such an embodiment is that the outer bracket, in order to exceed the dead center of the fastening device, does not have to be moved past the receptacle 3 of the inner bracket 4 so that it can be made somewhat slimmer when viewed from the front or from the rear.
  • the inner bracket 4 can be curved when viewed from the side.
  • the process of fastening the crampon to the shoe 1 takes place in such a way that the shoe 1 is first pushed with its toe 8 into a basket 7.
  • the cup 7 is connected to the front pegs 9 with sufficiently high static friction, for example riveted, and prevents the toe 8 from being lifted up out of the crampon.
  • the basket 7 can consist of plastic or another material.
  • the crampon preferably has a receptacle 13 in the area of the shoe heel 21, into which the outer bracket 5 can be inserted and is rotatably mounted there.
  • the outer bracket 5 can, for example, have widened ends or a vertically extending pin 22 at each bracket end, so that the bracket is prevented from being released from the receptacle 13, but a rotary movement is nevertheless made possible.
  • the entire fastening device 20 must be pivoted in the direction of arrow 24.
  • the outer bracket 5 is behind the inner bracket 4.
  • the distances between the receptacles 3 and 13 and the radii of the stirrups 4, 5 are advantageously designed in such a way that self-locking occurs when the connecting joint 6 is located in the area of the heel cap of the shoe 1. The self-clamping prevents the fastening device 20 from being released by itself and the crampon from folding away from the shoe sole 12 of the shoe 1.
  • the inner bracket 4 can be held on the shoe with the holding device 11.
  • This can for example be designed as a magnet or, in the case of a very soft shoe, as a tape with Velcro. They prevent the inner bracket 4 from folding away if it is anchored in the shoe, but the crampon 2 with the outer bracket 5 is not mounted.
  • the connecting joint 6 When the fastening device 20 is released, the connecting joint 6 must be pivoted against the direction of the arrow 24, the bracket 5 having to be brought over the dead center. The bracket 5 can then be removed from the connecting joint 6 Connection joint can be taken.
  • the fastening device 20 consists of an inner bracket 4 which is U-shaped, the bracket ends 16 being angled inwards by 90 °.
  • the outer bracket 5 is detachably and rotatably connected to the inner bracket 4 via a connecting hinge 6.
  • the outer bracket 5 has bracket ends 15 which are inserted into the receptacles 13 of the crampon 2. At the end of the temple ends 15 there are transverse pins 22 which prevent the temple ends 15 from slipping out of the receptacles 13.
  • the connecting joint 6 is located on the inner bracket 4, the outer bracket 5 being insertable into the joint 6 and being rotatably mounted there.
  • the joint 6 absorbs the forces emanating from between the brackets 4 and 5 and at the same time enables the brackets 4 and 5 to rotate relative to one another.
  • FIGS 8a and 8b Another preferred embodiment of the fastening device 20 according to the invention is shown: Here the connecting joint 6 is located on the outer bracket 5, the bracket 4 being insertable into the connecting joint 6 and being rotatably mounted there. This results, for example, from the Figure 8b which shows the bracket 5 on which the fork-shaped connecting joint 6 is arranged.
  • FIG. 6 shows a rear view of the shoe 1 together with the crampon 2 and the fastening device 20 according to the invention.
  • the fastening device 20 according to the invention consists of the inner bracket 4 and the outer bracket 5, both of which are connected to one another via the connecting joint 6.
  • a heel plate 17 is located, which is used to rest the connecting joint 6 on the heel cap of the shoe 1.
  • the heel plate 17 can consist of the same material as the fastening device 20. However, it is also possible for the heel plate 17 to consist of another material such as metal, rubber or carbon.
  • the double-sided receptacle 3 does not necessarily extend through the entire heel of the shoe 1, but only over certain lateral partial areas.
  • the partial areas are so large that the temple ends 16 can be accommodated and at the same time are rotatably mounted there.
  • the temple ends 16 can thus be inserted into the receptacle 3 on both sides and can also be easily detached from there. It is crucial that the recordings 3, 13 are so stable that they Can absorb clamping force of the entire fastening device 20.
  • bracket ends 15 of the outer bracket 5 are located inside the crampon 2 and the pins 22 prevent the bracket ends 15 from slipping out of the receptacles 13.
  • Figure 10b shows a variant of the fastening of the receptacles 3 on the shoulder 21, namely that the receptacles 3 are pressed against the shoulder from the sides by means of a clamp 49 which extends around the shoulder, through which the clip's own spring force.
  • Figure 10c shows the top view of the clip, which preferably extends around behind the shoe heel and is preferably made with at least one or two small tips (50) protruding into the shoe heel on each side so that the clip retains its position and the receptacle 3 on both sides does not slip.
  • FIG. 9 a top view of the fastening device 20 according to the invention is shown.
  • the inner bracket 4 is formed continuously. Instead of the temple ends 16, there is now a temple web 18 which is located within the receptacle 3 on both sides in the shoe sole 12.
  • the inner bracket 4 cannot be separated from the shoe heel 21 due to its closed shape. This makes it possible to design the joint 6 or the inner bracket 4 in a different manner, since here bending the bracket ends 15 is no longer possible and is therefore no longer necessary.
  • the crampon for walking in flat terrain is to simulate the bend of the soft shoe, i.e. also to be movable, but at the same time to be able to be made rigid for walking in steep terrain, not only is the hinge 27 required, but also a switching mechanism with which this Hinge joint can be blocked for steep terrain.
  • FIG. 5b a slot 55 formed on both inner sides in the front part of the crampon can be seen, into which the horizontal axis 52 firmly connected to the web 42 is inserted.
  • this axis rests rotatably somewhat behind and preferably also under the slot 55, as in FIG Figures 1, 2 and 5a from the side and in Figure 14 can be seen in detail.
  • an elliptical hole 29 are located at the rear end of the crampon front part, namely, such as Figure 4a shows on each of the two sides.
  • Figure 4a shows the elliptical holes 29 and 34 through which the in Figure 4b Locking pin 35 to be seen is guided.
  • the locking pin has uniform elliptical widenings 36 which, although they fit through the holes 29 and 34 if the longer axis of these ellipses are horizontal, can no longer be passed through when it is rotated 90 °.
  • the tapered shape of the tip 41 of the locking pin at the front is facilitated by the tapered shape of the tip 41 of the locking pin at the front.
  • the cross section of the tip 41 of the locking pin is elliptical as in the case of the widened areas 36 and the longitudinal axis of the ellipse is oriented in the same direction as its longitudinal axes. If the screw is now passed through, the disk 40, which also has an elliptical hole, can be hung.
  • the belt 38 Since the belt 38 is attached to the locking pin 35 via the angled end 37 of the locking pin in such a way that the thickenings at 36 and 41 are under tension transversely to the direction of pull because the longitudinal axes of the respective ellipses are parallel to the angled end 37 of the locking pin, the The locking pin 35 locks when the belt is lashed with a belt clamping device 39. Because the longer axis of the elliptical inner cross-section of the pulley 40 is horizontal under the tension of the belt 38, the pulley is also secured against falling out when lashing.
  • Figure 4d shows a modification of the lock just explained with the aid of the locking pin.
  • a pin 57 which has the shape of an asymmetrical U, that is to say has a continuation running through twice 90 °, locks the web 42.
  • the guides 58 it can be pushed back and forth.
  • For locking it is according to Figure 4d pushed from left to right until it engages guide 59.
  • To unlock it it is pushed to the long, below the web 42 extending end of 57 of in the sense of Figure 4d pushed back right to left until he has released the bridge.
  • Figure 3a shows another preferred type of switching mechanism.
  • a block 44 made of ferromagnetic material can slide back and forth.
  • the bolt 33 which runs horizontally and at right angles to the web 42, is fixed with the block 44 connected, so that the block gives the bolt a guide, so it only allows movement in or against the direction of travel, so only in the direction of arrow 32. If the latch is opened through the horizontal slot in Figure 1 can be seen from the side, pushed forward, it engages in the horizontal slot in the front part of the crampon 26.
  • the magnets 43 each magnetically attract the block 44 and thus lock the bolt in each of the two positions.
  • Block shown is conceivable if the block is hollow on the inside and carries the recesses 61 in the inner cavity, and if instead of the magnets 43 one or two springs 62 protruding into the block are firmly connected to the web.
  • Figure 5a shows another preferred type of switching mechanism.
  • an elongated plate 50 is pivoted about an axis 51.
  • Figure 5a two downwardly protruding prongs are also designed like the Figures 13a to 13f corresponds to what is explained below.
  • Figure 5b shows the plate placed in the movement mode from above, with the receptacle 74 for the plate 50 also being visible.
  • An embodiment according to the invention also consists in the fact that the plate, which is also located behind the hinge joint 27, is not pivoted over but under the base plate of the front part of the crampon, so that the receptacle 74 can be omitted because the plate in the locked state from below onto the base plate of the crampon -Front part presses.
  • the receptacle 74 can be omitted if the plate 50 is located above the crampon front part but in front of the hinge joint and does not allow the front end of the bar to move down there in the locking mode.
  • FIG. 5c shows a variant with two switching plates from above and FIG. 5d shows the latter variant from behind, but in the locked mode.
  • Figure 5e also shows a variant with vertically mounted switching plates, which behind the front crampon part 26 about horizontally extending axes 51 can be swiveled.
  • the switch plate or plates should be able to be locked, which is also representative for the Figures 5c and 5d in the Figure 5e is indicated by the locking lugs 56, which extend from the locking plate 50 in the direction of the front crampon part, which leads to a higher static friction of the locking plate 50 compared to the front crampon part 26 on which it slides. It is also conceivable that two depressions 75 are made on the front step iron part, into which the locking lug can alternatively engage in one of its end positions.
  • FIG 12a A variation of the switching mechanism is shown Figure 12a : Here the elliptical hole 29 is in front of the hinge joint 27 and not, as in Figure 1 , behind him.
  • a locking pin 35 can also be inserted here.
  • the other types of locking mentioned - without separate drawings - are conceivable in the same way, i.e. locking by means of one or more plates 50, which then, however, press from below on the web and from above on the front area of the crampon front part , or by a horizontally sliding latch as in Figure 3 a or 3b or in that this bar slides along the front part of the crampon and, depending on the case, engages in the bar or gives it freedom of movement.
  • Figure 12b is the place where it is locked, as in Figure 12a also in front of the horizontal axis, and it is also locked with a pin, but not with a locking pin like no. 35 according to the legend, but the pin is inserted into the bar from the front and not from the side.
  • this pin is designed as a locking frontal prong 79.
  • the rear of the horizontal front point axes 76 connected to the front area of the front crampon part must be pulled out horizontally.
  • the front point of the front point which cannot be dismantled without tools, can be designed as a screw with a screw nut - however, it should be noted that the front point must be able to rotate around the front point of the point - while the pull-out point is a pin with a bayonet lock, which secures the pin against falling out sideways, can be formed.
  • Figure 13c shows the arrangement as in Figure 12b , but in the unlocked state.
  • the rear frontal point axis was pulled out beforehand. The front point was then pushed forward in the elongated hole 77 and then tilted upwards, and then the rear front point axis was reinserted and fixed again with the bayonet lock so that the front point now maintains its steep position.
  • a placeholder 78 was also created used, which may consist of rubber.
  • Figure 13a shows a downwardly protruding prong (63) from the outside. It essentially consists of a stub (64) and a tip (65). Figure 13b shows the point from the opposite side.
  • the tip (65) carries at least one finger (69) - in the Figures 13a and b two are shown - so that with the finger or fingers it encloses the lower edge of the stub from below.
  • Figure 13b and c point upwardly protruding fingers, but it is also conceivable that the steel tip with horizontally aligned, possibly wider fingers or possibly also with fingers whose ends touch or are even firmly connected to one another, laterally encompasses the stub in its lower area.
  • the latter version is in Figure 13g evident.
  • the finger or fingers originate from the stub in order to encompass the prong from above, from one side or from both sides, whereby it is also possible in this case for the ends of the fingers to touch one another or are firmly connected.
  • a pin (67) connects the tip (65) with the stub (64) so that the two prong parts together with the fingers (69) form a stable unit. So that the pen cannot slip out, it has a nail or a nail on one side Screw head (66) and a screw nut (68) on the other side, or it has been flattened on one side.
  • the pin (67) can be designed as a screw that is screwed into a thread that is milled or pressed into the piece of metal that is opposite the screw head.
  • Figures 13d and 13e shows another way in which the stub and point can be combined - 13d from the outside, analogous to 13a, and 13e from the opposite side, analogous to 13b.
  • the stub is also pointed, so that you can optionally use the crampons without the steel tips to save weight.
  • one part of the prong is not enclosed by fingers, which arise from the other part of the prong, but the stub has two shoulders (73) on both sides on the steel tip, which in this area thanks to two Kink lines (72) is designed profiled, rest and - together with the pin (67) designed as a screw and the screw nut (68) - result in a firm connection between the steel tip and the stub.
  • Figure 13f shows the section A-A 'through Figure 13e .
  • the profile of the steel spikes from 13 d and e can be seen.
  • the present application claims a protection for the connection of a shoe with a crampon, the crampon being fastened to the shoe by means of a bracket which engages in a receptacle 3 on both sides in or on the heel of the shoe, and for a crampon with a lockable one Joint with which it can be switched between a rigid and a hinge-like movable state, as well as for crampon points, the upper and lower parts of which are each made of different metal alloys, such as an aluminum and a steel alloy, and both parts are stable or detachable are inextricably linked.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP19020347.1A 2019-05-25 2019-05-25 Système économisant les forces composé d'un crampon et d'une chaussure Pending EP3744207A3 (fr)

Priority Applications (1)

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EP19020347.1A EP3744207A3 (fr) 2019-05-25 2019-05-25 Système économisant les forces composé d'un crampon et d'une chaussure

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EP19020347.1A EP3744207A3 (fr) 2019-05-25 2019-05-25 Système économisant les forces composé d'un crampon et d'une chaussure

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EP3744207A2 true EP3744207A2 (fr) 2020-12-02
EP3744207A3 EP3744207A3 (fr) 2021-01-27

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8405269U1 (de) 1984-02-21 1984-06-07 Salewa Sportgeräte GmbH, 8000 München Steigeisen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH195311A (de) * 1937-03-13 1938-01-31 Ludwig Naef An Schuhen anzubringende Gleitschutz-Garnitur.
AT162005B (de) * 1946-03-14 1949-01-10 Krobath Maschf Ferd Steigeisen für steile Eisflächen.
DE8702977U1 (de) * 1987-02-26 1987-06-04 Salewa Sportgeräte GmbH, 8000 München Steigeisen
US6742286B2 (en) * 2001-01-23 2004-06-01 Kahtoola, Inc. Flexible traction system for common shoes
FR2990830A1 (fr) * 2012-05-22 2013-11-29 Salomon Sas Crampon pour chaussure
US20180070680A1 (en) * 2016-09-15 2018-03-15 Tingley Rubber Corporation Traction Studs And Outsoles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8405269U1 (de) 1984-02-21 1984-06-07 Salewa Sportgeräte GmbH, 8000 München Steigeisen

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