EP0139801B1 - Kantenschärfvorrichtung für Skier - Google Patents

Kantenschärfvorrichtung für Skier Download PDF

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Publication number
EP0139801B1
EP0139801B1 EP83306680A EP83306680A EP0139801B1 EP 0139801 B1 EP0139801 B1 EP 0139801B1 EP 83306680 A EP83306680 A EP 83306680A EP 83306680 A EP83306680 A EP 83306680A EP 0139801 B1 EP0139801 B1 EP 0139801B1
Authority
EP
European Patent Office
Prior art keywords
sharpening
heads
edge
ski
support
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
Application number
EP83306680A
Other languages
English (en)
French (fr)
Other versions
EP0139801A1 (de
Inventor
Donald Ray Obland
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.)
Individual
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
Priority to EP83306680A priority Critical patent/EP0139801B1/de
Priority to DE8383306680T priority patent/DE3375552D1/de
Priority to AT83306680T priority patent/ATE32307T1/de
Publication of EP0139801A1 publication Critical patent/EP0139801A1/de
Application granted granted Critical
Publication of EP0139801B1 publication Critical patent/EP0139801B1/de
Expired 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
    • A63C11/04—Accessories for skiing or snowboarding for treating skis or snowboards
    • A63C11/06—Edge-sharpeners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/068—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges for sharpening ski edges, i.e. sharp edges defined by two surfaces intersecting at an angle of substantially 90°

Definitions

  • This invention relates to an edge sharpening device for sharpening the metal edges of snow skis and the like.
  • Snow skis presently in use have metal edges extending along the bottom at both sides.
  • the side and bottom surfaces which define these metal edges become dull after extended use and sharpening and smoothing of these surfaces improves the performance of the ski.
  • Some attempts have been made to provide sharpeners for these metal edges.
  • One common approach to this problem has been to provide an edge sharpener that sharpens and smooths only one metal edge at a time, as is illustrated in U.S. Patents Nos. 3,837,123 and 3,899,942.
  • Some attempts have been made to provide a pair of oppositely disposed edge sharpeners on a common support to simultaneously sharpen both edges. Examples of the latter devices are shown in U.S. Patents Nos. 3,643,328, 3,875,825, and 4,060,013.
  • a ski edge sharpening device according to the pre-characterising part of claim 1 is known from DE-A-2 653 944.
  • the edge sharpening heads are rigidly mounted on respective end support portions which in use are located on opposite sides of a ski and are connected together by a pin loosely received in a sleeve.
  • This loose form of connection allows the side sharpening faces of the heads to turn to follow the taper of a metal edge strip of a ski of varying width, but may result in undesirably large movements of the heads as a whole on the device, leading to uneven pressure being applied to the bottom face of the edge strip during sharpening.
  • an edge sharpening device for snow skis and the like comprising:
  • the invention provides an edge sharpening device for snow skis and the like having a pair of opposed edge sharpening heads mounted on a common hand-gripped support that is adjustable in length to permit the heads first to be spread apart and then to be moved inwardly against the metal edge strips to accommodate different ski widths.
  • the edge sharpening heads are resiliently urged together so that sharpening side faces of the heads simultaneously engage both metal side surface on the skis. Bottom sharpening faces of the heads may be manually urged down against the metal bottom surfaces of a metal edge strip of an inverted ski.
  • the flexible mounting for the edge sharpening heads on the outer end portions of the common support allows the sharpening side faces to follow angled side surfaces of the metal edge strip as the device is moved back and forth relative to the ski.
  • a conventional snow ski 11 is shown in an inverted position and has an elongate main body 12, usually constructed of a plastic material, with a bottom surface 13, oppositely disposed side surfaces 14 and 15, and a top surface 16.
  • the ski has a pair of metal edge strips 21 and 22, each mounted in an associated recess formed in bottom portions at both sides of the ski.
  • One metal edge strip 21 has an outer edge defined by a bottom surface 25 and a side surface 26.
  • the other metal edge strip 22 has an outer edge defined by a bottom surface 28 and a side surface 29.
  • a sharpening device 30 shown has a common support 31 that traverses or straddles a segment of the ski and carries a pair of edge sharpening heads 32 and 33 disposed at opposite ends thereof to simultaneously sharpen both the bottom and side surfaces of both metal strips as the sharpening device 30 is moved back and forth along the ski.
  • the common support 31 is adjustable in length and includes two interfitting slide plates 35 and 36 disposed end to end.
  • Slide plate 35 has spaced, inwardly extending, finger-like extensions 37 and slide plate 36 has spaced, inwardly extending, finger-like extensions 38.
  • Finger-like extensions 38 have laterally outwardly extending V-shaped projections 38a on opposite sides that are received in complementary V-shaped grooves 37a in extensions 37 to provide interfitting dovetail surfaces whereby one surface slides in the other in a guided movement to adjust the length of the support and thereby change the spacing between the sharpening heads 32 and 33.
  • the end portions of the plates opposite the finger-like extensions extend beyond the sides of the ski.
  • a flat rigid plate 39 is affixed to slide plate 35 as by metal screws 40. Plate 39 extends beyond the end portions of the slide plates 35 and 36 and over the edge sharpening heads 32 and 33 to hold them against upward movement relative to the top of the slide plates 35 and 36.
  • a flexible cover 81 preferably of rubber or the like, which is able to stretch or expand and retract when extensions 38 are extended and retracted, the cover being soothing to a hand grip, fits over the entire rigid plate 39 and the outer end portion of the sharpening heads to complete the top structure of the device.
  • Sharpening head 32 includes a support 41 on which there are mounted along the inner side two aligned sharpening blocks 42 and 43 arranged end to end, each having a flat, vertical, side sharpening face 44 and 45, respectively, that bears against or engages the side surface 26 of the metal edge strip 21.
  • a third sharpening blcok 47 between blocks 42 and 43 has a bottom sharpening face 48 that engages the bottom surface 25 of the adjacent metal edge strip 21 in response to a downwardly directed hand pressure.
  • the sharpening faces are of a suitable material such as stone that is abrasive in character.
  • head 33 includes a support body 51 on which there are mounted along an inner side edge two aligned sharpening blocks 52 and 53 arranged end to end along a common axis, each having flat vertical side sharpening faces 54 and 55, respectively, that bear against or engage the side surface 29 of metal edge strip 22.
  • a third sharpening block 57 has a bottom sharpening face 58 that engages the bottom surface of the adjacent metal edge strip 22 in response to hand pressure. The location of the third blocks 47 and 57 with respect to the end support portions provides a space or gap 50 between the bottom of the support 31 and the ski 11.
  • a flexible endless band 61 is mounted in a peripheral recess 62 extending along the outer sides and ends in the slide plates 35 and 36 which pull the plates together and thereby the oppositely disposed sharpening faces of the sharpening heads against the opposed side faces 26 and 29 of the metal edge strips 21 and 22.
  • a downward force of the support by the user forces the bottom sharpening faces 48 and 58 against the bottom surfaces 25 and 28, respectively, of the metal edge strips 21 and 22.
  • the support body 41 of sharpening head 32 further has a female socket 64 extending into an inner side with two opposed inwardly projecting lip portions 65 and 66 forming a restriction at the entrance of the socket 64.
  • a generally pin-shaped male section 67 with a rounded head 68 at the outer end and a narrower neck 69 inwardly of the head is releasably held by lip portions 65 and 66.
  • the male section is mounted on the outer end of the slide plate 35.
  • a support body 51 of sharpening head 33 has a female socket 74 formed in the inner side thereof including two lip portions 75 and 76 forming a restriction at the entrance.
  • a pin-shaped male section 77 in the outer end of the slide plate 36 having a rounded head 78 and a neck 79 inwardly of the head is releasably held by lip portions 75 and 76.
  • the sharpening heads 32 and 33 are spread to a distance greater than the width of the ski against the forces of the flexible band 61 and, once in place, the band urges the sharpening side faces against the side surfaces 26 and 29 of the metal edge strips 21 and 22.
  • the joint structure provided by heads 68 and 78 and sockets 64 and 74, respectively flexes to allow the sharpening side faces to remain parallel to the edge surfaces of the ski.
  • the sharpening heads are spread apart to release the device from the ski.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (14)

1. Kantenschärfvorrichtung (30) für Schneeskier und dergleichen, umfassend einen Halter (31), der einander gegenüberliegende und sich quer erstreckende Endtragteile besitzt und zwischen diesen Endtragteilen in der Länge verstellbar ist, ferner ein Paar von durch diese Endtragteile für eine Hin- und Herbewegung entlang einander gegenüberliegender Seiten eines Skis (11) gehaltenen Kantenschärfköpfen (32, 33), deren jeder eine Seiten-Schärffläche (44, 45; 54, 55) für den Angriff an einer anliegenden Seitenfläche (26, 29) eines Metallkantenstreifens (21, 22) des Skis (11) und eine Boden-Schärffläche (48, 58) für den Angriff an einer anliegenden Bodenfläche (25, 28) des genannten Metallkantenstreifens (21, 22) aufweist, welche Köpfe (32, 33) an den genannten Endtragteilen befestigt sind, um es den genannten Seiten-Schärfflächen (44, 45; 54, 55) zu ermöglichen, gegenüberliegend zu kippen, um der Schräge des Metallkantenstreifens eines Skis mit variabler Breite zu folgen, ferner dem Halter (31) zugeordnete Spanrimittel (61) für die Möglichkeit, die genannten Schärfköpfe (32, 33) auseinanderzubewegen und dann näher zusammenzubringen, um die genannten Köpfe (32, 33) am Ski (11) für das Kantenschärfen und das gleichzeitige Zwingen der genannten Köpfe (32, 33) gegeneinander und gegen die anliegenden Seitenflächen (26, 29) des Paares von Metallkantenstreifen (21, 22) am Ski (11) zu positionieren, dadurch gekennzeichnet, daß jeder der genannten Köpfe (32, 33) am entsprechenden Endtragteil zur Verschwenkung um eine zur zugeordneten Bodenfläche (25, 28) des Metallkantenstreifens im wesentlichen senkrechte Achse flexibel befestigt ist durch Befestigungsmittel (64 bis 69; 74 bis 79), die zwischen den Querenden des Endtragteils und auf der zentralen Längsachse des Halters (31) angeordnet sind.
2. Kantenschärfvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der genannte Halter (31) in seiner Länge verstellbar ist und erste und zweite, endweise angeordnete Gleitplatten (35, 36) beinhaltet, jede mit einwärts erstreckten fingerartigen Verlängerungen (37, 38) mit ineinanderpassenden Gleitflächen (37a, 38a), angeordnet für die Gleitbewegung der genannten Endtragteile gegeneinander und auseinander.
3. Kantenschärfvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die genannten ineinanderpassenden Gleitflächen (37a, 38a) eine im allgemeinen falzförmige Gestalt haben.
4. Kantenschärfvorrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die Befestigungsmittel an jedem genannten Endtragteil einen im allgemeinen stiftförmigen Steckabschnitt (67, 77) mit einem gerundeten Kopf (68, 78) am Außenende und einem dünneren Hals (69, 79) einwärts des Kopfes aufweisen, sowie an jedem Schärfkopf einen Sockel (64, 74) mit einander gegenüberliegenden, einwärts vorspringenden Lippenteilen (65, 66; 75, 76), wodurch der genannte Steckabschnitt in den genannten Sockel eingesetzt ist und die genannten Lippenteile in den genannten Hals einspringen, um eine Schnapp-Gelenkverbindung für jeden Kopf an einem zugeordneten Endtragteil zu bilden.
5. Kantenschärfvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jeder der genannten Köpfe fluchtende erste und zweite Seiten-Schärfblöcke (42, 43; 52, 53) besitzt, die an einem gemeinsamen Tragkörper (41, 51) befestigt sind, sowie einen dritten Boden-Schärfblock (47, 57) zwischen den genannten ersten und zweiten Blöcken und in einer Position höher als die genannten ersten und zweiten Blöcke angeordnet, wobei sich der Mittelpunkt des genannten dritten Schärfblockes unter der zentralen Längsachse des Halters befindet.
6. Kantenschärfvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das genannte Spannmittel die Form eines elastischen endlosen Bandes (61) hat, welches ein Paar von einander gegenüberliegenden Gleitplatten (35, 36) umspannt, welche einen Teil des genannten Halters bilden.
7. Kantenschärfvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das genannte endlose Band (61) in eine Ausnehmung (62) einpaßt, die sich in den Seiten der genannten Gleitplatten (35, 36) erstreckt.
8. Kantenschärfvorrichtung nach Anspruch 6 oder 7, gekennzeichnet durch eine steife Platte (39), die an einer der genannten Gleitplatten (35, 36) befestigt ist und sich über die Enden der genannten Gleitplatten hinaus erstreckt, um die genannten Köpfe (32, 33) am Kippen in Aufwärtsrichtung relativ zur Oberseite der genannten Gleitplatten zu hindern.
9. Kantenschärfvorrichtung nach Anspruch 8, gekennzeichnet durch eine flexible obere Abdeckung (81) von mit Hand ergreifbarer Gestaltung, welche über der genannten steifen Platte (39) und einem Endbereich der genannten Köpfe angeordnet ist.
10. Kantenschärfvorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß jeder Schärfkopf erste und zweite fluchtende Schärfblöcke (42, 43; 52, 53) besitzt, die auf einem gemeinsamen Tragkörper (41, 51) montiert sind, wobei die genannten Gleitplatten (35, 36), die Abdeckung (81), die steife Platte (39) sowie die ersten und zweiten Blöcke in ihrer Querausdehnung übereinstimmen.
11. Kantenschärfvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jeder der genannten Köpfe (32, 33) einen im allgemeinen rechtwinkelig gestalteten Tragkörper (41, 51) besitzt und die genannten Schärfflächen durch im allgemeinen rechtwinkelig gestaltete Blöcke (42, 43, 47; 52, 53, 57) gebildet sind, die sich in Ausnehmungen der genannten Tragkörper befinden.
12. Kantenschärfvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die genannten Schärfflächen (44, 45, 48; 54, 55, 58) Schleifeigenschaft haben.
13. Kantenschärfvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Länge und Breite von Halter (31) und Köpfen (32, 33) für ein Ergreifen mit einer Hand zu seiner Bewegung entlang des Skis bemessen ist.
14. Kantenschärfvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jeder Tragteil integraler Teil eines von einem Paar einander gegenüberliegender ineinandergreifender Gleitplatten (35, 36) ist.
EP83306680A 1983-11-02 1983-11-02 Kantenschärfvorrichtung für Skier Expired EP0139801B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP83306680A EP0139801B1 (de) 1983-11-02 1983-11-02 Kantenschärfvorrichtung für Skier
DE8383306680T DE3375552D1 (en) 1983-11-02 1983-11-02 Edge sharpening device for skis
AT83306680T ATE32307T1 (de) 1983-11-02 1983-11-02 Kantenschaerfvorrichtung fuer skier.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83306680A EP0139801B1 (de) 1983-11-02 1983-11-02 Kantenschärfvorrichtung für Skier

Publications (2)

Publication Number Publication Date
EP0139801A1 EP0139801A1 (de) 1985-05-08
EP0139801B1 true EP0139801B1 (de) 1988-02-03

Family

ID=8191335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83306680A Expired EP0139801B1 (de) 1983-11-02 1983-11-02 Kantenschärfvorrichtung für Skier

Country Status (3)

Country Link
EP (1) EP0139801B1 (de)
AT (1) ATE32307T1 (de)
DE (1) DE3375552D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3845339A1 (de) * 2020-01-02 2021-07-07 Manfred Stadler Vorrichtung zur bearbeitung eines grats einer kante eines länglichen objekts

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9010388U1 (de) * 1990-06-11 1990-10-31 Kneissl Tirol Sportartikel Ges.m.b.H., Kufstein Kurzskiartiges Sportgerät
US5618053A (en) * 1990-06-11 1997-04-08 Kneissl Dachstein Sportartikel Ag Short ski-like sports device
DE19904555B4 (de) * 1999-02-04 2006-03-30 Josef Schorer Verfahren und Vorrichtung zum Bearbeiten von Skikanten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875825A (en) * 1974-02-07 1975-04-08 Bennie P Buttafuoco Ski sharpener
DE2653944A1 (de) * 1976-11-27 1978-06-01 Christian Fendt Werkzeug zum nachbearbeiten von metallskikanten
US4280378A (en) * 1979-12-31 1981-07-28 Levine Abraham I Ski sharpener

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3845339A1 (de) * 2020-01-02 2021-07-07 Manfred Stadler Vorrichtung zur bearbeitung eines grats einer kante eines länglichen objekts

Also Published As

Publication number Publication date
ATE32307T1 (de) 1988-02-15
EP0139801A1 (de) 1985-05-08
DE3375552D1 (en) 1988-03-10

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