EP3256019B1 - Bâton à suspension de la pointe - Google Patents

Bâton à suspension de la pointe Download PDF

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Publication number
EP3256019B1
EP3256019B1 EP16701945.4A EP16701945A EP3256019B1 EP 3256019 B1 EP3256019 B1 EP 3256019B1 EP 16701945 A EP16701945 A EP 16701945A EP 3256019 B1 EP3256019 B1 EP 3256019B1
Authority
EP
European Patent Office
Prior art keywords
pole
axial
insertion element
end attachment
axially
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.)
Active
Application number
EP16701945.4A
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German (de)
English (en)
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EP3256019A1 (fr
Inventor
Eberhard Heim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lekisport AG
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Lekisport AG
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Filing date
Publication date
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Publication of EP3256019A1 publication Critical patent/EP3256019A1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A45B9/04—Ferrules or tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A61H3/0277—Shock absorbers therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A61H3/0288—Ferrules or tips therefor
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A45B2009/005—Shafts
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B2200/00—Details not otherwise provided for in A45B
    • A45B2200/05—Walking sticks
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B2200/00—Details not otherwise provided for in A45B
    • A45B2200/05—Walking sticks
    • A45B2200/055—Walking sticks for Nordic walking
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A61H3/0277—Shock absorbers therefor
    • A61H2003/0283—Shock absorbers therefor using elastomeric material

Definitions

  • the present invention relates to a tip body for a stick, in particular a Nordic walking stick, hiking stick, ski stick, cross-country ski stick or walking stick, with a spring for the purpose of damping the axial force by the support movement of the user; as well as a stick with such a pointed body.
  • the tip may include a shaft engagement element for connecting the tip to the shaft of a walking aid, an outer shell and a biasing element.
  • the biasing element can be arranged in the outer shell in contact with the shaft engagement element.
  • the biasing element can also be arranged around the shaft engagement element and in abutting manner against the outer shell.
  • the biasing element can be a spring, a liquid-filled cushion or an element which is formed from an elastomeric material.
  • the outer shell can be made of transparent or translucent material so that the biasing element is visible to a user for easier identification.
  • the force absorption system comprises a damping element which is arranged on the outside of the elongated shaft between the elongated shaft and either the hand receiving element or the tip.
  • the damping element comprises an elastic material, such as an elastomer, that rebounds in response to a compressive force.
  • the damping element may have a plurality of stages configured to have independent damping force response properties.
  • the force absorbing system may further include a rebound air damper in the hand receiving element for controlling the rebound force characteristics of the attenuator.
  • the invention therefore lies inter alia. the task of an improved, easy to manufacture and pollution-resistant damping device for a telescopic stick, especially e.g. to propose for a telescopic stick with external clamping system, the damping device should be easy to manufacture, and as slim as possible, i.e. with regard to axial as well as circumferential extension.
  • the tip damping is particularly advantageous on a pole that has, for example, at least two telescopic pipe sections (e.g. touring pole), and that has an external clamping system for length adjustment or for releasably fixing the relative axial position of the at least two telescopic pipe sections to one another.
  • the construction can be used equally with telescopic systems with internal clamping or with internal and external clamping.
  • a stick in particular a Nordic walking stick, hiking stick, ski stick, cross-country stick, or walking stick, which has a stick body, at the lower free end of which a tip body is provided .
  • the tip body has an end cap closed at the bottom with a central receiving opening. This serves to receive an insertion element which is received and fastened with an upper axial section in the lowermost pipe section of the stick body, and is received with a lower axial section in the central receiving opening of the end cap.
  • the insertion element serves to a certain extent as a connecting link between the lowermost pipe section and the end cap.
  • a further damping element can be provided as stop damping, for example a disc made of elastic material.
  • a further damping element can also be arranged and attached to and / or in the element hitting this floor.
  • the tip body has an outer circumferential elastic elastomer spring element which adjoins axially above an upper end of the end cap and which at least partially encompasses the lowest tubular section of the stick body or - according to the alternative mentioned above - a central axial section of the insertion element in the circumferential direction.
  • An elastomer spring element is to be understood to mean an element which represents a highly elastically deformable body and which both springs and dampens, for example in the form of a foam spring (for example PU) or an elastic solid body, in each case here with a central through opening.
  • This elastomer spring element dampens and cushions an axial relative movement of the lowermost pipe section of the stick body relative to the end cap and / or the insertion element when an axial force acts on the stick from above.
  • the lowermost pipe section of the stick body and also the insertion element are axially displaceably mounted in the central receiving opening of the end cap against a spring force of the elastomer spring element.
  • the elastomer spring element if it is referred to as an outer circumferential elastic elastomer spring element, is preferably an essentially hollow cylindrical element (possibly with a structured surface and end regions) made of elastomer material, the outer surface of which forms the outer surface of the tip body. In other words, it surrounds the other components of the tip body all the way around on the outside in a certain axial section.
  • thermoplastic elastomer materials come into question of different types, for example TPE-O, ie thermoplastic elastomers based on olefins, for example PP / EPDM, for. B.
  • TPE-V ie cross-linked thermoplastic elastomers based on olefins, eg PP / EPDM, e.g. B. Sarlink, Forprene, TPE-U ie thermoplastic urethane-based elastomers, e.g. B. Elastollan (BASF) or Desmopan, Texin, Utechllan (Bayer); TPE-E, ie thermoplastic polyester elastomers / thermoplastic copolyesters, e.g. B.
  • TPE-S ie styrene block copolymers SBS, SEBS, SEPS, SEEPS and MBS
  • B. Styroflex BASF
  • Septon Kuraray
  • Thermolast Kraiburg TPE
  • Saxomer Polyplast Compound Werk GmbH
  • TPE-A ie thermoplastic copolyamides, e.g. B. PEBAX (Arkema). Attention must be paid to temperature compatibility (warm and cold) and sprayability.
  • the tip body furthermore has an upper stop element, which is fastened, preferably to a shoulder on the lowest tube section of the stick body, or at the lower end of the upper axial section of the insert element and provides an upper stop for the elastomer spring element.
  • the elastomer spring element is arranged axially between a lower stop arranged at the upper end of the end cap and the upper stop.
  • the elastomer spring element is preferably melted at the upper and / or lower stop by means of a positive connection, in particular a groove-comb connection, such as a dovetail connection, and / or alternatively or additionally by means of a material connection, in particular an adhesive connection or welded connection, or molded on, or put over as a sleeve, attached.
  • a positive connection in particular a groove-comb connection, such as a dovetail connection
  • a material connection in particular an adhesive connection or welded connection, or molded on, or put over as a sleeve, attached.
  • the upper stop and / or the lower stop for the elastomer spring element can alternatively also each be designed as a flat surface extending in the radial direction on the upper stop element or on the upper end of the end cap, which extends at a substantially right angle to the longitudinal axis of the pole, essentially parallel to a base on which the stick is supported by the user.
  • connection of the adjacent surfaces can then be achieved, for example, by means of an adhesive connection, welded connection, or also melted or injection molded.
  • the end cap, the elastic element and the upper stop element are preferably connected in one piece, preferably hermetically sealed. This can be achieved, for example, using a multi-component injection molding process or contact welding.
  • a radial cross pin is also arranged on the tip body, which projects radially through the end cap and the insertion element in a middle or lower section in a direction transverse to the longitudinal axis of the pole.
  • a through opening is arranged in the end cap, which extends from one point in the wall to an opposite one in the circumferential direction in the wall of the end cap.
  • the lower axial section of the insert element has at least for guiding the cross pin an axial slot, preferably two slots in the wall opposite each other in the circumferential direction, so that the radial cross pin within the limits of the at least one axial slot is axially displaceable against the spring force of the elastic element against the action of an axial force on the stick body from above.
  • the elongated hole preferably has a length of 0.5-3 cm, particularly preferably 0.7-1.5 cm, most preferably 0.8-1.3 cm.
  • the guiding of a cross pin also enables rotation stability or rotation of the parts which are axially displaceable relative to one another. By installing the suspension guide inside the tip body, the damping system is less susceptible to contamination or corrosion from the weather.
  • the cross pin can be arranged below the plate sleeve, it is then not lost, caught, and hermetically sealed, no contamination can occur.
  • the non-elastic elements of the body can consist of materials such as polyamide, for example PA66.
  • the end cap advantageously has an axial length of 3-15 cm, preferably 5-12 cm, particularly preferably 7-10 cm. Additionally or alternatively, the insertion element advantageously has an axial length of 2-12 cm, preferably 3-10 cm, particularly preferably 5-8 cm.
  • the insert element is preferably made of aluminum, alternatively of other metals, plastic or a metal-plastic compound. In the case of plastics, fiber-reinforced plastics are particularly advantageous.
  • the elastomer spring element has an axial length in the range of 0.5-4 cm, preferably 1-3 cm, particularly preferably 1.5-2 cm, and advantageously a radial thickness (measured from the outer wall of the encompassed area of the pipe section) or the insert element to the periphery) in the range of 0.2-1 cm, preferably 0.4-0.8 cm, particularly preferably 0.5-0.7 cm.
  • the lowermost pipe section has a shoulder on which the lowermost pipe section tapers axially downward, so that the diameter of the lowermost pipe section axially below the shoulder is smaller than the diameter of the lowermost pipe section axially above the shoulder, the Heel serves as an upper stop for the tip body.
  • the end cap is preferably at a free end facing a base trained closed. This can be achieved either by designing the central receiving opening as a blind hole, or by inserting a pin serving as a stick tip, preferably an insert with a hard metal tip or a hard metal pin, from below at an end of the end attachment facing a base, and preferably in the central receiving opening of the end cap is attached.
  • a buffer or a stick plate can be attached to the end cap, wherein in the case of attaching a stick plate to a stick, the stick plate preferably encompasses a region of the end cap in which the radial transverse pin projects through the through opening.
  • Such a floor plate can be held on the end cap within defined limits, for example between two extensions on the periphery of the end cap, for example by a lower stop on a circumferential thickening and by an upper stop on a shoulder.
  • the upper and / or the lower axial section of the insert element provided according to the invention is essentially cylindrical, the upper axial section of the insert element preferably having a peripheral structure, preferably in the form of radial recesses, particularly preferably in the form of axially spaced apart at least partially circumferential radial, for example annular incisions.
  • the outside diameter of the upper axial section of the insertion element is larger than the outside diameter of the middle axial section and / or than the outside diameter of the lower axial section of the insertion element. This is particularly the case if the lowermost pipe section is not butted, but instead has a uniform diameter in the lowermost area.
  • the lower end of the lowermost pipe section then preferably lies on a circumferential flange at the lower end of the upper section of the insertion element.
  • the insertion element in turn then preferably rests with a shoulder on the upper stop element of the tip body.
  • the lower end of the lowermost pipe section can, however, also extend to the shoulder of the insertion element or to the lower end of the upper section of the insertion element, in which case both lower ends rest on the upper stop element.
  • the middle and lower section of the insert element preferably protrude into the central one Receiving opening of the tip body, which in this embodiment has a smaller diameter than the cavity of the lowermost tube section.
  • An alternative preferred embodiment has an upper axial section of the insertion element, the diameter of which is smaller than the lower axial section of the insertion element (wherein in this embodiment there is no middle axial section at all with a shortened insertion element), so that the upper section of the insertion element is inside the lowest pipe section is added, and this in turn inside the end cap.
  • a shoulder is arranged which serves as a lower stop for the lower end of the lowermost pipe section, or the lower end of the lowermost pipe section rests on this shoulder.
  • the lower axial section of the insert element lies against the inner wall of the end cap. In this embodiment, the insertion element is thus completely received in the central receiving opening of the end cap, or does not protrude axially beyond the tip body.
  • the lower axial section of the insert element in embodiments in which such an insert element is present, has a diameter which essentially corresponds to the inside diameter of the end cap in the central receiving opening, so that the insert element, which is guided inside the end cap, preferably via a frictional connection Action of an axial force from above on the stick body slides axially in the end attachment. Sliding is achieved as soon as the acting force exceeds the spring force of the elastomer spring element.
  • the blind hole of the end cap, in which the insertion element slides, is advantageously arranged in such a way that the elongated hole is prevented from knocking out when the stick is fully compressed.
  • a further preferred embodiment of the proposed stick body can be characterized in that a further damping element is provided in the central receiving opening of the end cap. This damping element dampens the situation where the insert element comes into contact with the bottom of the blind hole in the end cap. This prevents that when the elastomer spring element cannot or should not completely cushion the movement, there is no hard unsprung stop at the lower stop.
  • This damping element can be used as a separate element in the central receiving opening of the end element are inserted or fastened therein. It is also possible to attach the damping element to the lower end of the insertion element, or it is also possible to design the lowermost end of the insertion element as such a damping element, for example in that the insertion element is designed as a two-component component and its area facing the bottom of the blind hole is formed from an elastomer material. Another possibility of making the assembly particularly simple can be to design the additional damping element with a guide pin, which can then be inserted into the typically existing central recess of the insertion element and fastened therein.
  • Such a generally circular-cylindrical damping element typically has an axial length of 2-7 mm, preferably in the range of 3-5 mm, and an outer diameter that is somewhat smaller or the same size as the inner diameter of the central receiving opening in the corresponding region.
  • the damping element can be formed from the same materials as the elastomer spring element.
  • the objective technical problem is further solved by providing a tip body for a stick, in particular for a Nordic walking stick, hiking stick, ski stick, cross-country stick, or walking stick. This can then be placed in an interchangeable manner on the bottom tube section of a stick and attached to it.
  • Such a tip body according to the invention has a downwardly closed end attachment with a central receiving opening for receiving an insertion element which is received with an upper axial section in the lowest tube section of the stick body and with a lower axial section in the central receiving opening of the end attachment.
  • the tip body furthermore has an outer, circumferential, elastic elastomer spring element which adjoins axially above an upper end of the end cap and which encompasses the lowermost pipe section of the stick body or a central axial section of the insertion element in the circumferential direction, and an axial relative movement of the lowermost pipe section of the stick body when exposed to a dampens axial force.
  • the elastomer spring element is preferably embodied to a certain extent as an elastic ring.
  • the tip body preferably has an upper stop element, which is preferably on a shoulder on the lowest tube section of the stick body or on the lower Is attached to the end of the upper axial section of the insert element, surrounds it like the elastomer spring element in the circumferential direction and provides an upper stop for the elastomer spring element.
  • the elastomer spring element is thus arranged axially between a lower stop arranged at the upper end of the end cap and the upper stop.
  • the tip body according to the invention is mounted on a stick, the lowermost pipe section of the stick body or, if applicable, the insertion element is axially displaceably mounted in the end attachment against the spring force of the elastomer spring element when an axial force is exerted on the stick body.
  • the tip body can therefore be manufactured separately and retrofitted to the stick for simple assembly or replacement if a tip suspension that is subject to wear and tear needs to be replaced. All, but in particular the second and third embodiment are suitable for replacement or retrofitting on conventional sticks, since no butted bottom pipe section is necessary here. In principle, other shapes or tip variants are also conceivable.
  • the illustrated tip suspension shows a very simple variant of a tip suspension.
  • the bottom tube section 6 is butted, ie it has a shoulder 11, the outer diameter d2 of the bottom tube section 6 above the shoulder 11 being larger than the outer diameter d3 of the bottom tube section 6 below the shoulder 11.
  • This shoulder 11 forms the upper one Stop for an upper stop element 10 for the tip body 3.
  • the tip body 3 is essentially formed from three main elements, namely, seen in the axial direction from the bottom upwards from the end cap 4, the elastomer spring element 9 and the upper stop element 10. All main elements each have one mutually coaxial receiving opening (5a, 5b, 5c) for receiving the lower section 6a of the lowermost pipe section 6.
  • the upper stop element 10 is in the sectional view of FIG Figure 1b shown trapezoidal, which is a stop ring which has at its periphery an outer surface or flank inclined radially inward upwards.
  • the lower flat surface of the upper stop element 10 provides an upper stop 10a for the elastomer spring element 9 which adjoins the upper stop element 9 axially below, and in the present exemplary embodiment runs from Figure 1 in the radial direction at an angle of 90 degrees transversely to the longitudinal axis S of the pole.
  • the inner diameter of the upper stop element 10 essentially corresponds to the outer diameter d3 of the encompassed lower portion 6a of the lowest pole tube portion 6.
  • the upper stop element 10, and possibly also the elastomer spring element 9 be attached to the cane tube section by means of an adhesive connection. Alternatively, a material bond, hot joining (ultrasonic welding or other methods) is possible.
  • the radial thickness d1 of the elastomer spring element 9 is 0.5-0.7 cm, and the axial length of the elastomer spring element 9 is 1.5-2 cm.
  • the elastomer spring element 9 has on its periphery a circumferential radial recess or an annular cut 23 which tapers radially inwards.
  • a plurality of such recesses 23 can also be axially distributed on the elastomer spring element 9, which can lead to a compression-friendly shape and can also be used to adjust the spring behavior.
  • the elastomer spring element 9 rests on a lower stop 8a, which is provided by the flat surface on the upper side of the upper end 8 of the end cap 4.
  • the upper end 8 of the end cap 4 is designed to a certain extent as an annular flange which protrudes radially beyond the rest of the end cap 4.
  • a first paragraph 25 formed which transfers into a short area 28 of the end cap 4, which has a smaller outside diameter than the flange or the upper end 8 of the end cap 4.
  • This short area 28 goes at a second shoulder 26 into a further smaller diameter axially adjoining it Area 27, which extends axially downward to a threaded portion 22.
  • This threaded portion 22 can be used as a fastener for a in Fig. 4g Shown plate 24 shown, possibly placed on the end cap 4 or screwed on with a corresponding internal thread, wherein the stick plate 24 would find an upper stop on the second paragraph 26 described above, or would be kept between these two limits.
  • the threaded section 22 can be molded onto the end cap 4 from the outside or fastened thereon or can be formed in one piece with the end cap 4.
  • the elastomer spring element 9 is thus, as it were, clamped between an upper stop 10a and a lower stop 8.
  • the elastomer spring element can additionally be attached to the abutment surfaces 8a, 10a by an adhesive connection; here, too, an integral connection, for example hot joining (for example ultrasonic welding), is alternatively possible.
  • the end cap 4, which is inserted from below over the lower section 6a of the lowermost pipe section 6, has a central receiving opening 5c. In this receiving opening 5c, which is designed as a blind hole in the exemplary embodiment shown, the lowermost pipe section 6 can be axially displaced from above onto the stick under the action of an axial force K.
  • the wall of the lower section 6a of the lowermost pipe section 6, which has a cavity 20, has a milled or punched or lasered axial elongated hole 13 at two opposite points.
  • a radial cross pin 14 is guided therein in a direction Q transversely to the longitudinal axis S of the stick, which is held at its two ends in two opposite through openings 1 in the wall of the end cap 4 and extends transversely through the central receiving opening 5c of the end cap 4.
  • the lower tube section 6 is shifted downward within the end cap 4, and the radial cross pin 14, which is in the rest position at the lower stop of the axial elongated hole 13, moves shortly before the upper stop position at the upper end of the axial elongated hole 13. Die axial movement, ie the damping movement of the stick is thus dependent on the size and the material and thus the spring force of the elastomer spring element 9 and the path is limited by the depth of the blind hole 5c.
  • the axial length of the elongated hole 14 is usefully longer than the possible spring travel in order to prevent the elongated hole from deflecting when the respective end position is reached.
  • the radial transverse pin 14 guided in the axial elongated hole 13 also serves during the damping movement or the axial relative movement R of the lowermost pipe section 6 in the end cap 4 also as a guide for the lowermost pipe section 6 within the end cap 4, or as an anti-rotation device or determining the rotational position of the two parts relative to each other.
  • the lower end 15 of the end cap 4 has a small cavity 29, in which an insert 21 is inserted from below and is fastened to the inner wall of the lower end 15 of the end cap 4, for example by gluing or pressing.
  • This insert 21 points in the illustrated embodiment from Fig. 1b a carbide tip 16 inserted from below, which can be pressed or glued.
  • the cavity 29 can also be connected to the central receiving opening 5c of the end cap 4, so that the central receiving opening 5c is designed as a through opening which extends from the upper end 8 of the end cap 4 to its lower end 15 and which is only through the use 21 with tip 16 or closed by a (not shown) attached to the lower end 15 buffer down.
  • the peripheral structuring of the elastomer spring element 9 is configured somewhat differently, namely with an annular circumferential recess running radially inwards in the middle of the axial length L2 of the elastomer spring element 9.
  • the lowermost pipe section 6 is of a butted design, ie it has a shoulder 11. According to this first preferred exemplary embodiment, however, it is not the lowermost pipe section 6 itself, but one of inserted into the lower section 6a of the lowermost pipe section 6, the slot element 13, in which the radial cross pin 14, which is held in the end cap 4, is guided.
  • the insertion element 7, which in Figure 2c enlarged and shown individually, is made of aluminum, plastic, other metal, or a combination of these materials.
  • the lower section 7c of the insert element is cylindrical.
  • the upper section 7a has a peripheral structure 18 in the form of a toothing in order to increase the frictional engagement between the insertion element and the lowermost cane section 6.
  • a shoulder 19 Between the smaller-diameter upper section 7a with diameter d4 and the larger-diameter lower section 7c with diameter d5 there is a shoulder 19. On this shoulder 19, the lower end 17 of the lowermost pipe section 6 rests.
  • the upper section 7a projects into the lower section 6a of the lowermost pipe section 6.
  • the insertion element 7 can also be glued with its upper section 7a in the lowermost pipe section 6.
  • the lower section 7c lies with its outer wall against the inner wall of the end cap 4, and is axially displaceably mounted therein, in the event of the action of an axial force K from above on the stick, which exceeds the spring force of the elastomer spring element 9.
  • the insertion element 7 finds its lower stop at the lower end 30 of the blind hole 5c during the damping movement.
  • the insertion element 7 is of shortened design, ie without a central section 7b.
  • FIG. 2d the three individual main elements 4, 9, 10 of the tip body 3 are shown schematically detached from one another.
  • the trapezoidal shape of the upper stop element 10 can be seen with its circumferential flank which is inclined radially inwards upwards.
  • the two stop surfaces 8a, 10a run essentially parallel to the base at an angle ⁇ of 90 degrees to the pole axis S.
  • the trapezoidal shape or the peripheral edge serves for the hermetically sealed connection of the arrangement and can be produced, for example, by injection molding.
  • the tip body 3 when assembled, has a central receiving opening, which is composed by the coaxially arranged individual central receiving openings 5a, 5b, 5c of the upper stop element 10, the elastomer spring element 9, and the end cap 4.
  • the central receiving opening 5c is configured as a blind hole in all of the exemplary embodiments shown, but in the case of the elastomer spring element 9 and the upper stop element 10 as Through opening 5b or 5a.
  • the through openings 1 in the two opposite positions of the wall of the end cap 4 with the radial cross pin 14 inserted are shown enlarged, in a view rotated by 90 degrees to the view from FIG Figure 2d .
  • FIG. 3 a second preferred embodiment is shown.
  • the lowermost pipe section 6 is not butted.
  • the axial elongated hole 13 is again integrated in a lower section 7c of an insertion element 7.
  • the tube section 6 is designed to be shorter than in the two previous exemplary embodiments of FIG Figures 1 and 2nd .
  • the lower end 17 of the lowermost pipe section 6 ends above the upper stop element 10 of the tip body 3 Figure 3c , in which the insertion element 7 of Figure 3b Enlarged and shown individually, it can be seen that the upper section 7a of the insert element has a structure 18 on its periphery, which is an axially spaced circumferential annular cut.
  • a circumferential flange 31 is arranged in front of the shoulder 19, which is arranged at the transition to the central section 7b of the insert element 7, the diameter d8 of which is larger than the outer diameter d4 of the remaining part of the upper section 7a.
  • the lower end 17 of the lowermost pipe section 6 rests on this flange 31 when the insertion element 7 is inserted into the lowermost pipe section 6 from below.
  • the underside of said flange 31 at the lower end 12 of the upper section 7a of the insert element 7 forms the upper stop for the tip body 3 and for the upper side of the upper stop element 10.
  • the middle section 7b and the lower section 7c of the insert element 7 have one smaller outside diameter d5 or d6 than the outside diameter d4 of the upper section of the insert element d4, the middle section 7b and the lower section 7c in the present exemplary embodiment having the same outside diameter d5, d6.
  • the insertion element 7 is longer than in FIG Figure 2 , its total length over all three sections 7a, 7b, 7c is approximately 3-15, preferably 5-12 and in particular 7-10 cm.
  • the elongated hole 13 is located approximately in the middle of that of the smaller-diameter section of the insert element 7, ie approximately in the middle of the distance between the flange 31 at the lower end 12 of the upper section 7a and the lower end 32 of the insert element 7.
  • the middle section 7b forms in this embodiment the Area of the insert element 7 which is encompassed by the elastomer spring element 9 and the upper stop element 10.
  • FIG. 4 a third preferred embodiment is shown.
  • the insertion element 7 is configured the same as in the second embodiment of FIG Figure 3 .
  • the difference here is the type of attachment of the elastomer spring element 9 to the upper stop element 10 and to the end cap 4.
  • the connection is achieved here by a dovetail connection, in which an axial extension 10b of the upper stop element 10 engages downward into the elastomer spring element 9 and in which an upper axial extension 8b at the upper end 8 of the end cap 4 engages upward in the elastomer spring element 9, so that the respectively adjacent elements interlock positively with one another.
  • the two extensions 8b, 10b each have a beveled flank.
  • an adhesive connection (or alternative material connection by spraying, welding, etc.) can additionally be provided at the adjoining interfaces.
  • the elastomer spring element 9 has a circumferential distance 33 from the insert element 7 on its radial inside.
  • Figure 4e A fifth preferred embodiment is shown, this being a further alternative type of fastening of the elastomer spring element 9 on the upper stop element 10 and on the end cap 4 compared to the fourth embodiment.
  • a positive connection is also provided here, however, the upper axial extension 8b of the end cap 4 and the lower axial extension 10b of the upper stop element 10 do not have a beveled flank, but rather each engages with a smaller-diameter neck portion, followed by a larger-diameter flange that is in contact with it its surface and its lower surface extends substantially transversely to the longitudinal axis S of the stick and parallel to the base, into the elastomer spring element.
  • an adhesive connection can also be provided on the adjacent stop surfaces (also here as an alternative material bond by welding, spraying, Ultrasonic welding, etc., possible).
  • the elastomer spring element 9 is made of a soft material and / or has an insufficient height (wanted or unwanted) in the axial direction, it can happen that the lower end of the insertion element 7c or a full load on the bottom of the central receiving opening 5c on the revolving stage can open.
  • the damping effect ends early, which can be uncomfortable and disadvantageous due to the hard impact. This can be solved by arranging an additional damping element 34 in the receiving opening 5c, as shown in FIGS Figures 4h and i for the case of the embodiment according to Figure 4 is shown.
  • this additional damping element is a small circular cylindrical block made of an elastomer material (analogous materials to the elastomer spring element), which is inserted into the receiving opening 5c or fastened therein.
  • the damping element 34 can, as in Figure 4h shown, have a slightly smaller outer diameter than the inner diameter of the receiving opening 5c, so that the elastomeric material of the damping element can deviate somewhat to the side for the effective damping effect.
  • the corresponding stopper 34 In order to prevent the corresponding stopper 34 from shifting, it can also be pressed into the receiving opening 5c to a certain extent in a form-fitting and / or non-positive manner either by an appropriate configuration such that the outside diameter essentially corresponds to the inside diameter of the receiving opening 5c, but it can also be fixed by a material bond (eg gluing).
  • a material bond eg gluing
  • the damping element instead of a solid cylinder in the form of a ring made of an elastomer material (for example a simple O-ring), which then lies on the step of the bottom of the blind hole to the cavity 29.
  • a solid cylinder in the form of a ring made of an elastomer material (for example a simple O-ring), which then lies on the step of the bottom of the blind hole to the cavity 29.
  • an end plug can be inserted into the hollow cylindrical tube in this lower section 7c (not shown) ), which provides a full contact surface for the top of the damping element 34 and prevents its injury.
  • FIG. 4j Another possible design for such a damping element 34 is shown in FIG. 4j. It is particularly advantageous for the assembly in this exemplary embodiment that the damping element 34 has an additional guide pin 35 with something has a smaller outside diameter, which can be inserted in the lower opening of the lower section 7c in a form-fitting and / or non-positive and / or material-locking manner.
  • the damping element 34 with the guide pin 35 can be inserted into the lower section 7c, then the insertion element 7 can be inserted into the end element 4, and in the end the damping element 34 is optimally positioned and comes up when the damping mechanism is pressed together the bottom of the blind hole with the shoulder to the cavity 29 in support.
  • tip suspension according to Figure 1 engages the guide pin 35 in the lowermost pipe section 6.
  • REFERENCE SIGN LIST 1 Through opening in 4 for 14 10th 5b central opening in 9 2nd Stick body 3rd Lace body 5c central receiving opening in in 4 4th End cap 5 free cavity for mobility of 6a in 5c of 4, respectively. from 7c to 5c from 4 6 lowest pipe section of 2 6a lower section of 6 - 7 Insert element 7a upper axial section of FIG. 7 5a central opening in 7b middle axial section of 7 29 Cavity at 15 30th lower end of 5c 7c lower axial section of FIG.

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  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Springs (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Claims (15)

  1. Bâton, en particulier bâton de marche nordique, bâton de randonnée, bâton de ski, bâton de ski de fond ou bâton de marche, présentant un corps de bâton (2) au niveau de l'extrémité libre duquel est prévu un corps de pointe (3),
    caractérisé en ce que
    le corps de pointe (3)
    - présente un embout (4) fermé vers le bas, avec une ouverture de réception centrale (5c) pour recevoir un élément d'insertion (7) qui est reçu et fixé par une portion axiale supérieure (7a) dans une portion de tube la plus inférieure (6) du corps de bâton (2), et qui est reçu avec une portion axiale inférieure (7c) dans l'ouverture de réception centrale (5c) de l'embout (4), la portion axiale supérieure et/ou inférieure (7a, 7c) de l'élément d'insertion (7) étant réalisées sous forme cylindrique ;
    - et présente également un élément de ressort élastomère élastique extérieur périphérique (9) se raccordant axialement au-dessus d'une extrémité supérieure (8) de l'embout (4), qui vient en prise au moins en partie autour de la portion de tube la plus inférieure (6) du corps de bâton (2) ou autour d'une portion axiale centrale (7b) de l'élément d'insertion (7) dans la direction périphérique (U), et qui amortit un mouvement axial relatif (R) de la portion de tube la plus inférieure (6) du corps de bâton (2) et de l'élément d'insertion (7) par rapport à l'embout (4) lors de l'application d'une force axiale (K) ;
    la portion de tube la plus inférieure (6) du corps de bâton (2) et l'élément d'insertion (7) étant supportés de manière déplaçable axialement à l'encontre d'une force de ressort de l'élément élastique (9) dans l'ouverture de réception centrale (5c) de l'embout (4).
  2. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de pointe (3) présente en outre un élément de butée supérieur (10) qui est fixé de préférence au niveau d'un épaulement (11) au niveau de la portion de tube la plus inférieure (6) du corps de bâton (2) ou au niveau de l'extrémité inférieure (12) de la portion axiale supérieure (7a) de l'élément d'insertion (7) et qui constitue une butée supérieure (10a) pour l'élément de ressort élastomère (9), l'élément de ressort élastomère (9) étant disposé axialement entre une butée inférieure (8a) disposée à l'extrémité supérieure (8) de l'embout (4) et la butée supérieure (10a), l'élément de ressort élastomère (9) étant fixé au niveau de la butée supérieure et/ou inférieure (8a, 10a) de préférence au moyen d'une connexion par engagement par correspondance de formes, en particulier une connexion à rainure et arête, par exemple une connexion en queue d'aronde, et/ou au moyen d'une connexion par liaison de matière, en particulier d'une connexion collée, d'un procédé d'injection à deux composants, d'un soudage.
  3. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est en outre prévu une goupille transversale radiale (14) qui traverse radialement l'embout (4) ainsi que l'élément d'insertion (7), de préférence dans une portion centrale (7b) ou une portion inférieure (7c) de l'élément d'insertion (7) dans une direction (Q) transversale à l'axe longitudinal (S) du bâton, une ouverture de passage (15) pour la goupille transversale radiale (14) étant réalisée à cet effet dans l'embout (4), et la portion axiale inférieure (7c) de l'élément d'insertion (7) présentant, pour le guidage de la goupille transversale (14), au moins un trou oblong axial (13), de préférence deux trous oblongs (13) opposés l'un à l'autre dans la direction périphérique (U) dans la paroi respective, de telle sorte que la goupille transversale radiale (14) soit supportée de manière déplaçable axialement à l'intérieur des limites d'au moins un trou oblong axial (13) à l'encontre de la force de ressort de l'élément élastique (9) lors de l'application d'une force axiale (K) par le dessus sur le corps de bâton (2) ; le trou oblong (13) présentant de préférence une longueur de 0,5-3 cm, en particulier de préférence de 0,7-1,5 cm, le plus préférablement de 0,8-1,3 cm, et de préférence la longueur axiale du trou oblong étant plus longue que la course de ressort possible, pour empêcher un rejet du trou oblong lorsque la position de fin de course respective est atteinte.
  4. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que le bâton présente au moins deux portions de tube pouvant être télescopées l'une dans l'autre et le bâton présentant un système de serrage extérieur pour le réglage en longueur ou pour la fixation amovible de la position axiale relative des au moins deux portions de tube télescopiques l'une par rapport à l'autre.
  5. Bâton selon l'une quelconque des revendications 2 à 4, caractérisé en ce que l'embout (4), l'élément élastique (9) et l'élément de butée supérieur (10) sont connectés d'une seule pièce, de préférence de manière hermétiquement étanche les uns avec les autres, de préférence par un procédé de moulage par injection à plusieurs composants, par soudage, collage ou des combinaisons de ceux-ci.
  6. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que l'embout (4) présente une longueur axiale (L1) de 3-15 cm, de préférence de 5-12 cm, en particulier préférablement de 7-10 cm ; et/ou dans lequel l'élément d'insertion (7) présente une longueur axiale (L3) de 2-12 cm, de préférence de 3-10 cm, en particulier préférablement de 5-8 cm, l'élément d'insertion (7) étant fabriqué de préférence en métal, en particulier en aluminium, en plastique, en particulier en plastique renforcé par des fibres ou en une combinaison de ces matériaux.
  7. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de ressort élastomère (9) présente une longueur axiale (L2) de l'ordre de 0,5-4 cm, de préférence de 1-3 cm, en particulier préférablement de 1,5-2 cm, et/ou l'élément de ressort élastomère (9) présente une épaisseur radiale (d1) de l'ordre de 0,2-1 cm, de préférence de 0,4-0,8 cm, en particulier préférablement de 0,5-0,7 cm.
  8. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que la portion de tube la plus inférieure (6) présente un épaulement (11) au niveau duquel la portion de tube la plus inférieure (6) se rétrécit axialement vers le bas de telle sorte que le diamètre (d3) de la portion de tube la plus inférieure (6) axialement en dessous de l'épaulement (11) soit inférieur au diamètre (d2) de la portion de tube la plus inférieure (6) axialement au-dessus de l'épaulement (11), l'épaulement (11) servant de butée supérieure pour le corps de pointe (3).
  9. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que l'embout (4) est réalisé sous forme fermée au niveau d'une extrémité libre (15) tournée vers un support, de préférence une goupille (16) servant de pointe de bâton, de préférence un insert avec une pointe en métal dur, étant introduit(e) par le bas au niveau d'une extrémité (15) de l'embout (4) tournée vers un support et de préférence étant fixé(e) dans l'ouverture de réception centrale (5c) de l'embout (4), et/ou en ce qu'un tampon ou une rondelle de bâton (24) est fixé(e) sur l'embout (4), et dans le cas de la fixation d'une rondelle de bâton (24) à un bâton selon l'une quelconque des revendications 3 à 8, la rondelle de bâton (24) s'engageant de préférence autour d'une région de l'embout (4) dans laquelle la goupille transversale radiale (14) traverse l'ouverture de réception centrale (5c).
  10. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que la portion axiale supérieure (7a) de l'élément d'insertion présente une structuration périphérique (18), de préférence sous la forme d'évidements radiaux, en particulier de préférence sous la forme d'entailles radiales espacées axialement les unes des autres, au moins sur une partie de la périphérie et/ou de préférence le diamètre extérieur (d4) de la portion axiale supérieure (7a) étant supérieur ou inférieur au diamètre extérieur (d5) de la portion axiale centrale (7b) et/ou au diamètre extérieur (d6) de la portion axiale inférieure (7c) de l'élément d'insertion (7) .
  11. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que la portion axiale inférieure (7c) de l'élément d'insertion (7) présente un diamètre (d6) qui correspond essentiellement au diamètre intérieur (d7) de l'embout (4) dans l'ouverture de réception centrale (5c) de telle sorte que l'élément d'insertion (7) guidé à l'intérieur de l'embout (4), de préférence par le biais d'une connexion par engagement par friction, glisse axialement dans l'embout (4) lors de l'application d'une force axiale (K) par le dessus sur le corps de bâton (2).
  12. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément d'insertion (7) est reçu complètement dans l'ouverture de réception centrale (5c) de l'embout (4), la portion axiale inférieure (7c) de l'élément d'insertion (7) s'appliquant contre une paroi intérieure de l'embout (4), et présentant un plus grand diamètre (d6) que le diamètre (d4) de la portion axiale supérieure de l'élément d'insertion (7) qui est reçue dans la portion de tube la plus inférieure (6), la portion de tube la plus inférieure (6) pénétrant avec sa portion inférieure (6a) dans l'ouverture de réception centrale (5c) de l'embout (4) et un épaulement (19) étant disposé entre la portion axiale supérieure (7a) de l'élément d'insertion (7) et la portion axiale inférieure (7c) de l'élément d'insertion (7), lequel sert de butée inférieure pour une extrémité inférieure (17) de la portion de tube la plus inférieure (6).
  13. Bâton selon l'une quelconque des revendications précédentes, caractérisé en ce que l'ouverture de réception centrale (5) est un trou borgne.
  14. Bâton selon l'une quelconque des revendications 2 à 13, caractérisé en ce que la butée supérieure (10a) et/ou la butée inférieure (8a) pour l'élément de ressort élastomère (9) est/sont réalisée(s) à chaque fois sous la forme d'une surface s'étendant dans la direction radiale au niveau de l'élément de butée supérieur (10) ou au niveau de l'extrémité supérieure (8) de l'embout (4), laquelle surface s'étend suivant un angle essentiellement droit (α) par rapport à l'axe longitudinal (S) du bâton.
  15. Corps de pointe (3) pour un bâton, en particulier pour un bâton de marche nordique, un bâton de randonnée, un bâton de ski, un bâton de ski de fond ou un bâton de marche, présentant
    - un embout (4) fermé vers le bas, avec une ouverture de réception centrale (5c), pour recevoir un élément d'insertion (7) avec une portion axiale supérieure (7a) en vue d'un logement dans une portion de tube la plus inférieure (6) du corps de bâton (2) et avec une portion axiale inférieure (7c) en vue d'un logement dans l'ouverture de réception centrale (5c) de l'embout (4), la portion axiale supérieure et/ou inférieure (7a, 7c) de l'élément d'insertion (7) étant réalisées sous forme cylindrique ;
    - présentant en outre un élément de ressort élastomère élastique extérieur périphérique (9) se raccordant axialement au-dessus d'une extrémité supérieure (8) de l'embout (4), qui vient en prise autour de la portion de tube la plus inférieure (6) du corps de bâton (2) ou autour d'une portion axiale centrale (7b) de l'élément d'insertion (7) dans la direction périphérique (U), et qui amortit un mouvement axial relatif (R) de la portion de tube la plus inférieure (6) du corps de bâton (2) lors de l'application d'une force axiale (K) ;
    - et présentant en outre de préférence un élément de butée supérieur (10) qui est fixé de préférence à un épaulement (11) au niveau de la portion de tube la plus inférieure (6) du corps de bâton (2) ou au niveau de l'extrémité inférieure (12) de la portion axiale supérieure (7a) de l'élément d'insertion (7) et constitue une butée supérieure (10a) pour l'élément de ressort élastomère (9) ; l'élément de ressort élastomère (9) étant disposé axialement entre une butée inférieure (8a) disposée au niveau de l'extrémité supérieure (8) de l'embout (4) et la butée supérieure (10a) ;
    caractérisé en ce que
    lorsque le corps de pointe (3) est monté sur le bâton, la portion de tube la plus inférieure (6) du corps de bâton (2) et l'élément d'insertion (7), lors de l'application d'une force axiale (K) par le dessus sur le corps de bâton (2) sont supportés de manière déplaçable axialement dans l'embout (4) à l'encontre d'une force de ressort de l'élément de ressort élastomère (9).
EP16701945.4A 2015-02-13 2016-01-28 Bâton à suspension de la pointe Active EP3256019B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH1992015 2015-02-13
CH3642015 2015-03-17
PCT/EP2016/051848 WO2016128229A1 (fr) 2015-02-13 2016-01-28 Bâton à suspension de la pointe

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EP3256019A1 EP3256019A1 (fr) 2017-12-20
EP3256019B1 true EP3256019B1 (fr) 2020-04-15

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US (1) US10646012B2 (fr)
EP (1) EP3256019B1 (fr)
JP (1) JP6917306B2 (fr)
KR (1) KR102599905B1 (fr)
CN (1) CN107223028B (fr)
CA (1) CA2973935C (fr)
HK (1) HK1243290A1 (fr)
RU (1) RU2692331C2 (fr)
WO (1) WO2016128229A1 (fr)

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CN208161001U (zh) * 2018-04-27 2018-11-30 厦门富山春工业有限公司 一种滑雪杖结构
EP4003086A4 (fr) 2019-07-31 2023-11-01 Belgravia Wood Limited Bâton de randonnée éclairé
FR3120502A1 (fr) 2021-03-09 2022-09-16 Decathlon Bâton pour activité sportive

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Publication number Publication date
JP6917306B2 (ja) 2021-08-11
WO2016128229A1 (fr) 2016-08-18
KR20170116053A (ko) 2017-10-18
RU2017129086A (ru) 2019-03-13
US20180008021A1 (en) 2018-01-11
RU2692331C2 (ru) 2019-06-24
CA2973935A1 (fr) 2016-08-18
CN107223028B (zh) 2019-10-18
JP2018511357A (ja) 2018-04-26
RU2017129086A3 (fr) 2019-04-16
US10646012B2 (en) 2020-05-12
KR102599905B1 (ko) 2023-11-07
CA2973935C (fr) 2023-07-04
EP3256019A1 (fr) 2017-12-20
CN107223028A (zh) 2017-09-29
HK1243290A1 (zh) 2018-07-13

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