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US20030006583A1 - Gliding edge profile - Google Patents

Gliding edge profile Download PDF

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Publication number
US20030006583A1
US20030006583A1 US10/147,428 US14742802A US2003006583A1 US 20030006583 A1 US20030006583 A1 US 20030006583A1 US 14742802 A US14742802 A US 14742802A US 2003006583 A1 US2003006583 A1 US 2003006583A1
Authority
US
United States
Prior art keywords
gliding
edge profile
gliding edge
component parts
profile
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.)
Abandoned
Application number
US10/147,428
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English (en)
Inventor
Laszlo Rozsnoki
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.)
Stahlwerk Ergste Westig GmbH
Original Assignee
Stahlwerk Ergste Westig GmbH
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 Stahlwerk Ergste Westig GmbH filed Critical Stahlwerk Ergste Westig GmbH
Assigned to STAHLWERK ERGSTE WESTIG GMBH reassignment STAHLWERK ERGSTE WESTIG GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ROZSNOKI, LASZLO
Publication of US20030006583A1 publication Critical patent/US20030006583A1/en
Assigned to HSBC UK BANK PLC reassignment HSBC UK BANK PLC SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VOXSMART LIMITED
Abandoned 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
    • A63C5/00—Skis or snowboards
    • A63C5/04—Structure of the surface thereof
    • A63C5/048—Structure of the surface thereof of the edges
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium

Definitions

  • the present invention relates to a gliding edge profile for winter sports equipment, such as, for example, skis, snowboards and sledges.
  • Profiles of this type are normally made of steel and exhibit a generally L-shaped cross section with a relatively greater leg and a relatively smaller leg.
  • the leg of greater cross section has the gliding edge and terminates flush with the bottom of a ski, whereas the leg with smaller cross section provides an anchor of the gliding profile between the runner base and a runner base underlayer. Accordingly, the anchoring leg and the gliding edge leg are exposed to different stress conditions.
  • the gliding edge leg is subjected to particular stress that requires a high degree of wear resistance, hardness and surface quality. Another important factor to consider here is maintenance-free construction because the service life decreases when the edges are sharpened as is typically done to remove rust or to re-establish good guide properties.
  • the gliding edge leg Despite a high wear resistance, it should be possible to easily grind the gliding edge leg to a level of the runner base surface to realize a completely flat running surface.
  • the other leg of the edge profile, serving as anchoring profile, is subjected to much less stress because it is disposed inside the ski and therefore does neither come into contact with the atmosphere nor with snow or ice or with dispersed grit and partially snow-free ground.
  • chromium steels are especially useful as material for gliding edges. Although chromium steels show high corrosion resistance and wear resistance as well as high hardness, their relatively low ductility is disadvantageous. In order to permit production of gliding edge profiles through rolling or drawing, quenchable and temperable steels are typically used which receive their wear resistance and hardness through a final heat treatment.
  • German Patent Document DE 40 00 744 describes a process for the heat treatment of gliding edge legs in situ, whereby the zone about the gliding edge is heated locally by means of a laser beam to a hardness temperature and is subsequently immediately locally quenched to transform into a martensite structure.
  • This process requires a complex apparatus and still cannot ensure reproducible properties of the gliding edge.
  • particular measures are necessary, in addition to local quenching, to carry off heat which is generated during welding.
  • This process is capable to produce a gliding edge with high hardness and wear resistance in the area of the actual gliding edge as well as comparably high toughness, especially of the anchoring profile. Still, as a consequence of the required cooling action during the heat treatment, inner tension is encountered in the edge-near region to lead to a so-called sickle distortion, i.e., a highly disadvantageous flexure of the gliding edge profile.
  • German Patent Document DE 42 18 099 A1 limits the hardness gradient across the cross section and length of the gliding edge profile to less than 2 HRC.
  • the process described therein employs thus a two-step heat treatment which involves a quenching and tempering of the entire gliding edge profile to provide a martensitic structure, and a subsequent partial pearlitization at a temperature as constant as possible across the length of the profile. Any sickle distortion remaining after the partial pearlitization is eliminated through a subsequent deformation by bending with constant degree of bending stretching over the length of the profile. This process is extremely complicated and still is unable to provide the gliding edge profile with the necessary corrosion resistance to eliminate the need for frequent re-grinding and sharpening.
  • German Patent Document DE 198 08 276 which describes the use of a gliding edge material of chromium steel alloy.
  • the hardness and wear resistance as well as vibration behavior and corrosion resistance depends in the quenched and tempered state, in particular toward chlorides and nitrates, on the presence of carbon, nitrogen, molybdenum and chromium.
  • a gliding edge profile for winter sports equipment includes two component parts connected at an angle to one another along their longitudinal edges.
  • the present invention resolves prior art problems by providing two component parts which can be made of different materials and are interconnected to form, for example, a L-shaped configuration, whereby one component part is the gliding edge leg and the other component part represents the anchoring leg.
  • the gliding edge leg of rust-free material and wear-resistant material, preferably chromium steel
  • the anchoring leg may be made of a simple carbon steel.
  • the gliding edge leg may be a chromium steel with
  • the balance being iron.
  • chromium steel which contains at least 0.1% of tungsten, 0.4% of manganese and 0.4% of silicon.
  • a currently particularly suitable chromium steel includes 0.3 to 1.0% or also at most 0.8% carbon, 5.0 to 16.5% or also 13.0% chromium, 1.0 to 2.0% molybdenum, 0.4 to 2.0% vanadium, 0.6 to 1.1% % silicon, as well as, optionally, 1.2 to 2.5% tungsten.
  • a particular high wear resistance is achieved when the content of carbon, chromium and molybdenum, and, optionally, also the content of molybdenum, vanadium and tungsten, satisfies the following condition:
  • Joining of the component parts or profile legs can be realized through laser beam welding, electron-beam welding or plasma jet welding. In this way, heat is introduced in a narrow locally restricted area so that the heat impact zone is small. Tempering may follow the welding process to eliminate structural changes and also welding tension accompanying the welding operation in the heat impact zone.
  • the component parts may be properly guided by a profile guide for correct positioning during welding operation.
  • the component parts are welded together by a welding seam at a maximum width of 0.5 mm.
  • welding heat is small enough to realize a rapid cooling already in the area of the profile guide so that a distortion of the finished glide edge profile as a result of heat and undesired structural changes in the area of the gliding edge are prevented.
  • a gliding edge profile may finally be subjected also to a common quenching and tempering treatment.
  • Another option involves the production of the gliding edge leg from an already hardened component part, for example, a square wire so that there is only a need to quench and temper the complete gliding edge profile after the welding operation.
  • the welding seam may have gaps to improve the bending capability of the gliding edge profile. Such gaps or breaches can be realized by simply cutting the welding current. The bending capability can be further enhanced, when forming the anchoring leg with openings which may or may not be open toward the welding edge or welding seam.
  • FIG. 1 is a cross section of a first embodiment of a gliding edge profile according to the present invention
  • FIG. 2 is a cross section of a second embodiment of a gliding edge profile according to the present invention.
  • FIG. 3 is a cross section of a third embodiment of a gliding edge profile according to the present invention.
  • FIG. 4 is a fragmentary perspective illustration of a fourth embodiment of a gliding edge profile according to the present invention.
  • FIG. 5 is a fragmentary perspective illustration of a fifth embodiment of a gliding edge profile according to the present invention.
  • FIG. 1 shows a cross section of a first embodiment of a gliding edge profile according to the present invention, including an anchoring leg 1 for attachment of the gliding edge profile in the body of a ski (not shown), and a gliding edge leg 2 of rectangular cross section and forming a gliding edge 3 for the ski.
  • the anchoring leg 1 and the gliding edge leg 2 are connected together by a welding seam 4 .
  • FIG. 2 shows a gliding edge profile in which the gliding edge leg 2 has an inner flank 5 which is inclined inwardly toward the anchoring leg 1
  • FIG. 3 shows a gliding edge profile in which the gliding edge leg 2 has an outer flank 6 which is inclined outwardly away from the anchoring leg 1 and forms with the gliding edge 3 a slight angle.
  • FIG. 4 shows another embodiment of a gliding edge profile in which the anchoring leg 1 is formed with openings 8 (only one opening 8 is shown here by way of example) and openings 11 (only one opening 11 is shown here by way of example) to improve attachment of the edge profile to the body of the ski.
  • the openings 8 have a closed border 9 whereas the openings 11 are open toward the free leg edge 10 of the anchoring leg 1 .
  • FIG. 5 shows an embodiment of a gliding edge profile in which the anchoring leg 1 is formed in addition to the openings 8 with openings 12 which are open toward the welding seam 4 and the gliding edge leg 2 , as indicated by reference numeral 15 .
  • the anchoring leg 1 is formed with any combination of the openings 8 , 11 , 12 .
  • the welding seam 5 is breached in addition to gap 15 by gaps 14 which divide the welding seam 5 into several weld sections 13 and are aligned with the gap 15 of opening 12 of the anchoring leg 1 .
  • the openings 8 , 11 , 12 in the anchoring leg 1 and the gaps 14 in the welding seam 4 provide the gliding edge profile with a high bending capability so that the ski exhibits a high elasticity.
  • the gliding edge leg 2 may be a chromium steel of a following composition, by weight percent: 0.1 to 1.1% of carbon, 4.0 to 18% of chromium, 0.1 to 4.0% of molybdenum and/or 0.1 to 2.4% of vanadium and/or up to 3.0% of tungsten, up to 2.0% of manganese, up to 2.0% of silicon, the balance being iron.
  • a chromium steel which contains at least 0.1% of tungsten, 0.4% of manganese and 0.4% of silicon.
  • a currently particularly suitable chromium steel includes 0.3 to 1.0% or also at most 0.8% carbon, 5.0 to 16.5% or also 13.0% chromium, 1.0 to 2.0% molybdenum, 0.4 to 2.0% vanadium, 0.6 to 1.1% % silicon, as well as, optionally, 1.2 to 2.5% tungsten.
  • a particular high wear resistance is achieved when the content of carbon, chromium and molybdenum, and, optionally, also the content of molybdenum, vanadium and tungsten satisfies the following condition:
  • chromium steel alloys K1 to K6 which, apart from the chromium steel allow disclosed in German Pat. Document DE 198 08 276 A1, are suitable as material for the gliding edge leg, wherein designations F 1 to F 5 indicate materials for the anchoring leg: Chemical Composition [weight %] Al- C Si Mn Cr Mo Ni V W loy (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%) (%)

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Laser Beam Processing (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
US10/147,428 2001-05-16 2002-05-16 Gliding edge profile Abandoned US20030006583A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10123674A DE10123674B4 (de) 2001-05-16 2001-05-16 Gleitkantenprofil
DE10123674.3 2001-05-16

Publications (1)

Publication Number Publication Date
US20030006583A1 true US20030006583A1 (en) 2003-01-09

Family

ID=7684904

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/147,428 Abandoned US20030006583A1 (en) 2001-05-16 2002-05-16 Gliding edge profile

Country Status (4)

Country Link
US (1) US20030006583A1 (de)
AT (1) AT501171B1 (de)
DE (2) DE10123674B4 (de)
FR (1) FR2824745B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7004493B2 (en) * 2001-07-06 2006-02-28 C.D. Walzholz-Brockhaus Gmbh Ski edge profile
WO2022109658A1 (en) * 2020-11-27 2022-06-02 Tang, Yuankui A new wear resistant steel with high hardness and good toughness which keeps hardened after hard facing and tungsten carbide tile brazing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004020293B4 (de) * 2004-04-26 2006-02-09 Danfoss A/S Wärmetauscher
EP2413047B2 (de) † 2010-07-30 2021-11-17 Grundfos Management A/S Brauchwassererwärmungseinheit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126152A (en) * 1935-06-26 1938-08-09 Chauncey G Suits Ski
US2743113A (en) * 1952-07-11 1956-04-24 Nelson S Griggs Flexible running edge for ski
US3095207A (en) * 1956-09-21 1963-06-25 Head Howard Ski
US3297332A (en) * 1964-01-15 1967-01-10 Jet Stream Ind Skis
US4191599A (en) * 1978-09-13 1980-03-04 Ford Motor Company Method of heat treating high carbon alloy steel parts to develop surface compressive residual stresses
US5301965A (en) * 1985-01-07 1994-04-12 Richard Floreani Snow ski
US6062585A (en) * 1993-04-27 2000-05-16 Hess; Eugen Ski construction

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH218662A (de) * 1941-04-22 1941-12-31 Inglin & Knuesel Ski mit Schutzkanten.
CH369481A (de) * 1956-01-11 1963-05-31 Birmingham Small Arms Co Ltd Verfahren zur Erhöhung der Kriechfestigkeit von Chromstahl
DE1238676B (de) * 1962-05-31 1967-04-13 Gen Electric Verwendung einer Chromstahllegierung fuer Schmiedestuecke
DE1578902A1 (de) * 1966-05-26 1970-10-15 Simon Fa Karl Seitenschiene fuer Skier
AT307951B (de) * 1971-02-18 1973-06-12 Deutsch Friedrich Verfahren zur Herstellung eines Stahlbeschlagteiles für Schier, insbesondere einer Stahlkante und nach diesem Verfahren hergestellter Stahlbeschlagteil
CH569493A5 (de) * 1972-06-08 1975-11-28 Bildner Heinz
JPS5243414B2 (de) * 1973-02-20 1977-10-31
DE2427195A1 (de) * 1974-06-05 1976-01-02 Fritzmeier Kg Georg Stahlkante fuer ski
FR2342459A1 (fr) * 1976-02-27 1977-09-23 Sofeas Procede de protection, par profile metallique, des bords et aretes d'objets sensibles aux chocs et a l'usure
US4294613A (en) * 1979-07-03 1981-10-13 Henrik Giflo Acid resistant, high-strength steel suitable for polishing
US4987282A (en) * 1985-06-12 1991-01-22 K-2 Corporation Snow ski with treated metal edge
DE3620091A1 (de) * 1986-06-14 1987-12-23 Feldmuehle Ag Ski
FR2627996B1 (fr) * 1988-03-02 1990-12-21 Seb Sa Ski a carres ameliorees
DE4000744C2 (de) * 1990-01-12 1996-07-11 Trumpf Gmbh & Co Verfahren für Stahlkanten von Wintersportgeräten
DE4011384A1 (de) * 1990-04-07 1991-10-10 Karl Schimanek Ski mit zusaetzlichem seitenkantenprofil
DD298827A5 (de) * 1990-04-25 1992-03-12 Zi Fuer Festkoerperphysik Und Werkstofforschung,De Werkstoff fuer gleitelemente von wintersportgeraeten
DE4218099A1 (de) * 1991-08-28 1993-03-04 Waelzholz C D Prod Gmbh Verfahren fuer die herstellung einer skikante
EP0530395A1 (de) * 1991-09-04 1993-03-10 Karl Schimanek Ski mit zusätzlichem Seitenkantenprofil
DE4240380A1 (de) * 1992-12-01 1994-06-09 Wirnsberger Peter Ski mit Doppelkante
US5580078A (en) * 1993-11-12 1996-12-03 Vance; Mark D. Double-edged snowboard
FR2729866B1 (fr) * 1995-01-30 1997-04-11 Rossignol Sa Perfectionnement aux skis a coque pourvus de chants de support de la coque
JPH1157108A (ja) * 1997-08-27 1999-03-02 Kaname Fukao スキー用エッジ
DE19808276C2 (de) * 1998-02-27 2003-12-24 Stahlwerk Ergste Westig Gmbh Stahllegierung für Gleitelemente

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126152A (en) * 1935-06-26 1938-08-09 Chauncey G Suits Ski
US2743113A (en) * 1952-07-11 1956-04-24 Nelson S Griggs Flexible running edge for ski
US3095207A (en) * 1956-09-21 1963-06-25 Head Howard Ski
US3297332A (en) * 1964-01-15 1967-01-10 Jet Stream Ind Skis
US4191599A (en) * 1978-09-13 1980-03-04 Ford Motor Company Method of heat treating high carbon alloy steel parts to develop surface compressive residual stresses
US5301965A (en) * 1985-01-07 1994-04-12 Richard Floreani Snow ski
US6062585A (en) * 1993-04-27 2000-05-16 Hess; Eugen Ski construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7004493B2 (en) * 2001-07-06 2006-02-28 C.D. Walzholz-Brockhaus Gmbh Ski edge profile
WO2022109658A1 (en) * 2020-11-27 2022-06-02 Tang, Yuankui A new wear resistant steel with high hardness and good toughness which keeps hardened after hard facing and tungsten carbide tile brazing

Also Published As

Publication number Publication date
FR2824745B1 (fr) 2004-12-17
DE10123674A1 (de) 2002-12-05
AT501171A1 (de) 2006-07-15
AT501171B1 (de) 2007-01-15
DE10123674B4 (de) 2005-11-10
DE10214735A1 (de) 2003-12-18
FR2824745A1 (fr) 2002-11-22

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AS Assignment

Owner name: STAHLWERK ERGSTE WESTIG GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROZSNOKI, LASZLO;REEL/FRAME:013135/0939

Effective date: 20020603

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: HSBC UK BANK PLC, UNITED KINGDOM

Free format text: SECURITY INTEREST;ASSIGNOR:VOXSMART LIMITED;REEL/FRAME:068886/0008

Effective date: 20241011