EP1327468B1 - Dämpfer für Wander- oder Skistock - Google Patents

Dämpfer für Wander- oder Skistock Download PDF

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Publication number
EP1327468B1
EP1327468B1 EP02015835A EP02015835A EP1327468B1 EP 1327468 B1 EP1327468 B1 EP 1327468B1 EP 02015835 A EP02015835 A EP 02015835A EP 02015835 A EP02015835 A EP 02015835A EP 1327468 B1 EP1327468 B1 EP 1327468B1
Authority
EP
European Patent Office
Prior art keywords
shock
cylinder
pole
piston
absorbing device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02015835A
Other languages
English (en)
French (fr)
Other versions
EP1327468A1 (de
Inventor
Attilio Pronzati
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.)
GIUSEPPE PRONZATI Srl
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1327468A1 publication Critical patent/EP1327468A1/de
Application granted granted Critical
Publication of EP1327468B1 publication Critical patent/EP1327468B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C11/00—Accessories for skiing or snowboarding
    • A63C11/22—Ski-sticks
    • A63C11/221—Ski-sticks telescopic, e.g. for varying the length or for damping shocks
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/20—Shock or vibration absorbing

Definitions

  • the present invention refers to a shock-absorbing device for a pole, particularly for hiking, downhill skiing, cross-country skiing and the like, as well as for orthopaedics and motor rehabilitation.
  • a pole of this type has a handgrip destined for gripping by the user and an elongate member which has one end coupled to the handgrip and the other end of a suitable shape designed to come into contact with the ground.
  • poles with shock absorption are known to the art which provide shock-absorbing means interposed between the elongate member and the handgrip.
  • shock-absorbing system by absorbing part of the impact between the pole and the ground, makes use of the pole generally more pleasant and can avoid dislocation of the wrist, elbow or shoulder.
  • Poles are also known which, according to the user's requirements, can act as shock-absorbing poles or rigid poles. Said poles have means of enabling and disabling the shock-absorbing member.
  • poles according to the prior art have the shock-absorbing device integral with or formed in a single body with the handgrip and/or the end of the elongate member and for this reason the production and assembly procedure thereof proves considerably complex and costly.
  • EP-A-1 118 363 describes a stick with a shock-absorber comprising a spring situated between a disk fixed inside the tube and the bottom of a cavity of the hand-grip. Shaped slots are formed in the tube for engagement of a pin fixed to the hand-grip. The position of the pin in the vertical or horizontal portion of the slots enables and disables the shock-absorbing effect, respectively.
  • FR-A-2 387 064 discloses a ski pole provided with a shock-absorbing device housed in the handgrip.
  • the shock-absorbing device comprises a cylinder fixed within the tube of the ski-pole, a piston with a larger head sliding within the cylinder and a stem extending outside the cylinder and fixed to an outer sleeve.
  • Spring means are situated between the upper edge of the cylinder and the upper part of the sleeve.
  • the object of the present invention is to overcome the drawbacks of the prior art by providing a shock-absorbing device that can be adapted to various types of pole, so as to reduce times and costs for assembly and production of a pole with such a shock-absorbing device.
  • Another object of the present invention is to provide such a shock-absorbing device for poles that is able to ensure good reliability and a long life of the pole with such a shock-absorbing device.
  • the shock-absorbing device for a pole comprises a cylinder-piston coupling with shock-absorbing means interposed.
  • the cylinder has an inner chamber and is designed to be made integral with the elongate member of the pole.
  • the piston is slidable inside the cylinder chamber and is designed to be made integral with the handgrip of the pole.
  • the shock-absorbing means are disposed inside the chamber of the cylinder between an abutment surface of the cylinder and an abutment surface of the piston. Stop means able to limit the sliding stroke of the piston inside the chamber of the cylinder are provided in the cylinder and in the piston.
  • the peculiarity of the invention is represented by the fact that the shock-absorbing device can be produced and assembled separately from the pole.
  • the shock-absorbing device according to the invention is subsequently interposed between the handgrip and the elongate member of the pole to ensure the shock-absorbing effect.
  • shock-absorbing device proves extremely simple to make and assemble, thus reducing manufacturing costs of the pole.
  • FIGS. 1 and 2 show a pole designated as a whole with reference numeral 1.
  • the pole 1 comprises a handgrip 2 suitable to be gripped by a user and an elongate member 4, shown broken off, which has one end joined to the handgrip and the other end, not shown in the figures, designed to engage on the ground.
  • the handgrip 2 is open at one end and has an axial cavity 3, cylindrical in shape, suitable to receive the elongate member 4.
  • the end part of the elongate member 4, which engages in the cavity 3 of the handgrip, is formed by means of a tubular aluminium member, having an axial cylindrical cavity 5. Inside the cavity 5 of the end part of the elongate member a shock-absorbing member according to the invention, designated as a whole with reference numeral 6, is disposed.
  • the shock-absorbing device 6 comprises a hollow cylinder 10, tubular in shape, defining a cylindrical chamber 11 within which shock absorbing means 8 and a piston 20 are disposed.
  • the shock-absorbing means can be, for example, a spiral spring 8, or any other elastic or compressed gas shock-absorbing means.
  • the chamber 11 of the cylinder 10 is open at the top for insertion of the spring 8 and the piston 20 and has at the bottom an annular abutment surface 18 against which one end of the spring 8 abuts.
  • the abutment surface 18 of the bottom part of the cylinder 10 has an axial hole 19 communicating with the outside for expulsion of the air from the chamber 11 of the cylinder 10.
  • the cylinder 10 has an outside diameter smaller than or the same as the inside diameter of the elongate member 4 and has a greater thickness than the thickness of the end part of the elongate member 4.
  • the cylinder 10 has at its top end an annular collar 12 that protrudes radially outward.
  • the collar 12 of the cylinder has an outside diameter greater than the diameter of the elongate member 4 and smaller than the inside diameter of the handgrip 2. In this manner the cylinder 10 can be inserted in the chamber 5 of the elongate member 4 and the collar 12 of the cylinder abuts against the end of the elongate member 4.
  • Each L-shaped aperture has an elongate vertical slot 14 and a horizontal slot shorter than the vertical slot. In a central position of the horizontal slot a tooth 15 is provided which divides the horizontal slot into a first seat 16 and a second seat 17 communicating with the vertical slot 14. The horizontal slot of the L-shaped aperture is disposed towards the collar 12 of the cylinder.
  • a radial through hole 13 is provided in the side wall of the cylinder 10, in the part distal to the collar 12, to receive a pin 33 for fixing of the cylinder 10 to the elongate member 4, as shown in Figure 2.
  • the piston 20 comprises a stem 21 and a head 22 with a larger diameter so as to define an annular abutment surface 23.
  • the stem 21 of the piston has a smaller outside diameter than the inside diameter of the cylinder 10 so as to be able to slide in the chamber 11 of the cylinder 10.
  • the head 22 of the piston has an outside diameter larger than the inside diameter of the cylinder 10 and smaller than the inside diameter of the cavity 3 of the handgrip 2, so as to be able to be housed inside the cavity 3 of the handgrip.
  • the head 22 of the piston has a radial through hole 24 to receive a pin 34 for fixing of the head of the piston to the handgrip 2.
  • two pins 25 which protrude radially outwards in diametrically opposite positions are provided.
  • the two pins 25 of the piston 20 are able to engage in the two L-shaped apertures of the cylinder 10.
  • the bottom end and the top end of the vertical slot 14 respectively generate the lower end-of-stroke point and the upper end-of-stroke point for axial translation of the piston 20.
  • the spring 8 is interposed between the bottom end of the stem 21 of the piston and the abutment surface 18 of the cylinder 10.
  • shock-absorbing device 6 can be assembled separately and subsequently applied to the pole 1 by fixing the head 22 of the piston to the handgrip 2 and the cylinder 10 to the elongate tubular member 4.
  • the cylinder 10 and the piston 20 can be made by injection moulding of hard plastic material.
  • the cylinder 10 can be formed in two symmetrical half-shells which are assembled to each other, by welding, gluing or force fitting, so as to contain the spring 8 and the piston 20.

Landscapes

  • Fluid-Damping Devices (AREA)
  • Package Closures (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (12)

  1. Eine Stange (1), die folgendes umfasst:
    einen Handgriff (2) mit einem axialen Hohlraum (3), der an dessen einem Ende offen ist,
    ein verlängertes Element (4) mit einem Endteil, das gleitbar innen in den genannten Hohlraum (3) des Handgriffs einrastet, und
    eine stoßdämpfende Vorrichtung (6), die eine stoßdämpfende Wirkung zwischen dem genannten Handgriff (2) und dem genannten verlängerten Element (4) der genannten Stange ermöglichen kann, wobei die stoßdämpfende Vorrichtung folgendes umfasst:
    einen Zylinder (10), der eine innere Kammer (11) aufweist, die dazu bestimmt ist, einteilig mit dem genannten verlängerten Element (4) der Stange zu sein,
    einen Kolben (20), der gleitbar innen in der genannten Kammer des Zylinders (10) angeordnet und dazu bestimmt ist, einteilig mit dem genannten Handgriff (2) der Stange zu sein,
    Arretierelemente, die in der Lage sind, den Gleithub des genannten Kolbens (20) innerhalb der genannten Kammer des Zylinders (10) zu begrenzen, und
    stoßdämpfende Elemente, die jeweils zwischen dem Zylinder (10) und dem Kolben (20) agieren, dadurch gekennzeichnet, dass der genannte Kolben (20) folgendes umfasst:
    einen Schaft (21), der dazu bestimmt ist, innen in der Kammer des Zylinders zu gleiten, und
    einen Kopf (22) mit einem größeren Durchmesser als der Schaft (21), der außerhalb der Kammer des Zylinders angeordnet ist, sowie dadurch, dass
    die genannten stoßdämpfenden Elemente (8) innen in der genannten Kammer des Zylinders (10) zwischen einer Anschlagsfläche (18) des Zylinders (10) und einer Anschlagsfläche des Schafts (21) des Kolbens (20) angeordnet sind.
  2. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6) gemäß Anspruch 1, dadurch gekennzeichnet, dass der genannte Kopf (22) des Kolbens eine radiale Öffnung (24) umfasst, um einen Stift (34) zur Befestigung des genannten Handgriffs (2) aufzunehmen.
  3. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6) gemäß einem beliebigen der vorausgegangenen Ansprüche, dadurch gekennzeichnet, dass die genannten Arretierelemente mindestens eine Öffnung umfassen, die längs in der Seitenwand des genannten Zylinders (10) angeordnet ist, in die ein Stift (25) einrastet, welcher von der Seitenwand des genannten Kolbens (20) radial nach außen vorsteht.
  4. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6) gemäß Anspruch 3, dadurch gekennzeichnet, dass sich zwei Öffnungen, die in diametral gegenüberliegenden Stellungen angeordnet sind, in der genannten Seitenwand des Zylinders (10) befinden, sowie dadurch, dass zwei Stifte, die in diametral gegenüberliegenden Stellungen angeordnet sind, sich in der Seitenwand des Kolbens befinden.
  5. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6), gemäß einem beliebigen der vorausgegangenen Ansprüche, dadurch gekennzeichnet, dass Elemente, die in der Lage sind, die Wirkung der genannten stoßdämpfenden Elemente (8) zu aktivieren oder zu deaktivieren, vorgesehen sind.
  6. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6) gemäß Anspruch 5, dadurch gekennzeichnet, dass die genannten Elemente, die in der Lage sind, die Wirkung der genannten stoßdämpfenden Elemente (8) zu aktivieren oder zu deaktivieren, mit den genannten Arretierelementen verbunden sind und mindestens eine L-förmige Öffnung umfassen, die in dem genannten Zylinder (10) gebildet wird, in die jeweils ein Stift (25), der radial von dem genannten Kolben (20) vorsteht, einrastet, wobei die genannte L-förmige Öffnung jeweils einen senkrechten Schlitz (14) umfasst, der sich längs an der Seitenwand des Zylinders (10) erstreckt, und einen waagerechten Schlitz, der sich rund um die Seitenwand des Zylinders erstreckt.
  7. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6) gemäß Anspruch 6, dadurch gekennzeichnet, dass in dem genannten L-förmigen Schlitz ein Zahn (15) vorgesehen ist, der ihn jeweils in einen ersten Sitz (16) unterteilt, in dem der Stift (25) des Kolbens in eine axiale Bewegung gezwungen wird, und in einen zweiten Sitz (17), der mit dem senkrechten Schlitz (14) in Verbindung steht, in dem der Stift (25) des Kolbens sich frei axial entlang dem senkrechten Schlitz (14) bewegt.
  8. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6) gemäß Anspruch 6 oder 7, dadurch gekennzeichnet, dass die genannten Elemente, die geeignet sind, die Wirkung der genannten stoßdämpfenden Elemente zu aktivieren bezw. zu dekativieren, zwei L-förmige Öffnungen umfassen, die in der Seitenwand des genannten Zylinders (10) in diametral gegenüberliegenden Stellungen gebildet werden.
  9. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6) gemäß einem beliebigen der vorausgegangenen Ansprüche, dadurch gekennzeichnet, dass die genannten stoßdämpfenden Elemente eine Spiralfeder (8) umfassen.
  10. Eine Stange mit einer stoßdämpfenden Vorrichtung (6) gemäß einem beliebigen der vorausgegangenen Ansprüche, dadurch gekennzeichnet, dass im unteren Teil des genannten Zylinders (10) eine radiale durchgehende Öffnung (13) vorgesehen ist, die in der Lage ist, einen Stift (7) zur Arretierung des genannten verlängerten Elements (4) der Stange aufzunehmen.
  11. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6) gemäß einem beliebigen der vorausgegangenen Ansprüche, dadurch gekennzeichnet, dass der genannte Kolben (20) und/oder der genannten Zylinder (10) mit Hilfe von Spritzguss aus hartem Kunststoff hergestellt wird.
  12. Eine Stange (1) mit einer stoßdämpfenden Vorrichtung (6) gemäß Anspruch 11, dadurch gekennzeichnet, dass der genannte Zylinder (10) jeweils aus zwei Halbschalen besteht, die anschließend durch Schweißen, Leimen, Presspassung u.ä. zusammengesetzt werden.
EP02015835A 2002-01-10 2002-07-16 Dämpfer für Wander- oder Skistock Expired - Lifetime EP1327468B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002MI000014U ITMI20020014U1 (it) 2002-01-10 2002-01-10 Dispositivo ammortizzante per bastoncino
ITMI20020014U 2002-01-10

Publications (2)

Publication Number Publication Date
EP1327468A1 EP1327468A1 (de) 2003-07-16
EP1327468B1 true EP1327468B1 (de) 2005-12-07

Family

ID=11448800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015835A Expired - Lifetime EP1327468B1 (de) 2002-01-10 2002-07-16 Dämpfer für Wander- oder Skistock

Country Status (4)

Country Link
EP (1) EP1327468B1 (de)
AT (1) ATE311930T1 (de)
DE (1) DE60207809T8 (de)
IT (1) ITMI20020014U1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8528577B2 (en) 2010-07-13 2013-09-10 Easton Technical Products, Inc. Shock absorbing system for trekking poles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2958510B1 (fr) * 2010-04-12 2015-02-20 Vuillaume Jean Paul Poignee dynamique de baton
EP2579741B1 (de) 2010-06-14 2018-05-02 Lekisport AG Stock mit stossdämpfer
RU2492901C2 (ru) * 2012-04-09 2013-09-20 Вацлав Владимирович Ежов Лыжная палка

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2055597A1 (de) * 1970-11-12 1972-05-18 Fa. Hermann Schwabe, 7067 Urbach Skistock
FR2387064A1 (fr) * 1977-04-14 1978-11-10 Allsop Automatic Baton de ski equipe d'une poignee d'amortissement et procede de reglage dudit baton
SU1409303A1 (ru) * 1985-02-05 1988-07-15 Киевский Политехнический Институт Им.50-Летия Великой Октябрьской Социалистической Революции Лыжна палка

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8528577B2 (en) 2010-07-13 2013-09-10 Easton Technical Products, Inc. Shock absorbing system for trekking poles

Also Published As

Publication number Publication date
ITMI20020014V0 (it) 2002-01-10
ITMI20020014U1 (it) 2003-07-10
DE60207809D1 (de) 2006-01-12
DE60207809T2 (de) 2006-08-31
DE60207809T8 (de) 2007-02-08
ATE311930T1 (de) 2005-12-15
EP1327468A1 (de) 2003-07-16

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