US3804429A - Skis equipped with a fairing adapted to improve their performance - Google Patents

Skis equipped with a fairing adapted to improve their performance Download PDF

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Publication number
US3804429A
US3804429A US00266742A US26674272A US3804429A US 3804429 A US3804429 A US 3804429A US 00266742 A US00266742 A US 00266742A US 26674272 A US26674272 A US 26674272A US 3804429 A US3804429 A US 3804429A
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US
United States
Prior art keywords
ski
fairing
tip
blade portion
straight blade
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
US00266742A
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English (en)
Inventor
I Rovatti
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
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Individual
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Filing date
Publication date
Priority claimed from IT2339672A external-priority patent/IT1007506B/it
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3804429A publication Critical patent/US3804429A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • 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
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/065—Anti-crossing devices

Definitions

  • ABSTRACT A ski tTp fairing is disclosed, which has the purpose of preventing two skis from overlapping.
  • the fairing has a specially designed shape so as to generate a reactive force which not only prevents ski overlapping but assists in realigning the skis when they show a. tendency towards overlapping.
  • An object of the invention is to provide a novel type of skis equipped with means which are adapted to prevent the overlapping of the ski blades, thus avoiding the above enumerated defects leading to a trouble in the performance of an exercise and the possiblefall of the skier.
  • the phenomenon according to which the overlapping takes place and becomes more and more serious has been investigated, and it has been ascertained that this is originated, generally speaking, by a very small, hardly detectable overlapping of one ski blade over. the other ski blade and that the phenomenon grows easily due to the fact that the slipping of one ski over the other one is controllable with only great difficulty.
  • the small force which is necessary to overcome the phenomenon at its very inception, can well be a reactive force, that is, a force imparted to the blade of the other ski by the blade of the ski which is being overlapped thereby.
  • This reactive force can be originated spontaneously by properly equipping the top surface of the ski blades with a cowling or fairing.
  • Such a force, in order to restore the side-by-side relationship of the ski blades, must be so directed that it not only repells the ski which tries to overlap the other ski, but also so as to guide it in order that the overlapping ski may rethe straight portion of the blade, while, for'the remainder of its length, it can be left freely in contact with the surface of the tip portion blade so as not to negatively influence the ski tip resiliency.
  • the fairing can be restrained against side or lateral displacements by means of a dowel which extends vertically from the upper surface of the ski blade tip, said dowel being introduced with a loose fit, in the longitudinal direction of the ski, into a hole formed in the bottom face of the fairing.
  • FIG. 1 is a side elevational view, partly in section, showing the tip of a ski constructed in accordance with the present invention.
  • FIG. 2 is a plan view.
  • FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 1, and
  • FIG. 4 is a perspective view showing a pair of skis made according to this invention.
  • the subject ski has, characteristically and in conformance, with the upper surface of the curved ski tip 1, a fairing 2 which has a substantially triangular transverse cross-section, having a longitudinal which is sloped, top ridge 3 as at 4, in order to provide a connection the straight portion of the ski blade.
  • the fairing has a longitudinal axis which approximately follows the curvature of the ski tip.
  • thefairing Z can be constructed of .different materials which, however, should be such, at any rate, as not to render the ski excessively heavy and not to prejudice the resiliency of the ski tip.
  • fairing made of a plastics material can be employed, which may be hollow in its interior, or a fairing of rubber, or fabric-reinforced rubber which is fastened to the ski by means of a cement.
  • the fairing can be mounted on the ski tip also in the manner as clearly shown in FIGS. 1,
  • the ski constructed in accordance with the present invention is characterized in that it includes, in correspondence with the upper surface of the curved tip of the blade, a fairing having a substantially triangular cross-sectional shape, the beveled apex having a longitudinal ridge which is sloped down the straight portion of the ski blade, and with the fairinghavinga longitudinal axis which approximately follows the curvature of the ski tip.
  • bladeonly in the region of the portion where it is sloped toward be permanently affixed to the ski blade only in the region of its sloped end 4 through an appropriate fastening means 6, which can take any number of forms.
  • the fairing bottom surface can be: in free or sliding contact with the upper surface of the tip of the blade so as not to have a negative influence on the tip resiliency.
  • the fairing can also be blocked against side or lateral displacements by the agency of a dowel 7 having a circular cross-section which is fastened to and extends vertically from the upper surface of the ski blade tip, said dowel being loosely positionable within a hole 8, which is of oval or elongate shape with the longer axis, oriented longitudinally of the ski, and which is formed in the bottom face of the fairing.
  • an attachment supported on the upper surface of said ski tip adapted to prevent overlapping of adjacent of said skis during use thereof, said attachment comprising: a fairing having a longitudinal axis substantially following the curvature of said ski tip, the lower surface of said fairing conforming generally to the configuration of said ski tip, said fairing being essentially triangular in lateral cross-section, and including an upper longitudinal central ridge having a sloped portion inclined toward the straight blade portion of said ski; means fastening said attachment to the straight blade portion of said ski dowel means fastened in the central portion of the curved tip of said ski and projecting normally upsaid ski.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US00266742A 1971-06-28 1972-06-27 Skis equipped with a fairing adapted to improve their performance Expired - Lifetime US3804429A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6919571 1971-06-28
IT2339672A IT1007506B (it) 1972-04-19 1972-04-19 Sci muniti di carenatura atta a migliorarne le prestazion

Publications (1)

Publication Number Publication Date
US3804429A true US3804429A (en) 1974-04-16

Family

ID=26328383

Family Applications (1)

Application Number Title Priority Date Filing Date
US00266742A Expired - Lifetime US3804429A (en) 1971-06-28 1972-06-27 Skis equipped with a fairing adapted to improve their performance

Country Status (5)

Country Link
US (1) US3804429A (OSRAM)
AT (1) AT317053B (OSRAM)
CH (1) CH536120A (OSRAM)
DE (1) DE2231705A1 (OSRAM)
FR (1) FR2143794B3 (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130229006A1 (en) * 2012-03-05 2013-09-05 John B. Nobil Snow Deflector for Skis
US11717740B2 (en) 2020-08-11 2023-08-08 Robert Ray Blocker Apparatus and method for motorized traction device to assist alpine touring snow sport equipment movement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1158587B (it) * 1982-10-19 1987-02-18 Caber Italia Sci a caratteristiche di rigidita' modificabili con inserti intercambiabili

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455920A (en) * 1947-05-16 1948-12-14 Jr Norman E Ebbley Antispill attachment for skis
US2611624A (en) * 1950-05-23 1952-09-23 Max A Gurvich Ski and ski tip attachment
US3031697A (en) * 1959-09-29 1962-05-01 Robert S Klein Water ski
US3148891A (en) * 1963-08-20 1964-09-15 Johan G F Heuvel Attachment to improve parallel skiing
US3295860A (en) * 1964-09-28 1967-01-03 Hoven George R Von Ski and ski tip attachment
US3601421A (en) * 1969-03-13 1971-08-24 Jurg M Ris Device for the improvement of the directional guidance of skis

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455920A (en) * 1947-05-16 1948-12-14 Jr Norman E Ebbley Antispill attachment for skis
US2611624A (en) * 1950-05-23 1952-09-23 Max A Gurvich Ski and ski tip attachment
US3031697A (en) * 1959-09-29 1962-05-01 Robert S Klein Water ski
US3148891A (en) * 1963-08-20 1964-09-15 Johan G F Heuvel Attachment to improve parallel skiing
US3295860A (en) * 1964-09-28 1967-01-03 Hoven George R Von Ski and ski tip attachment
US3601421A (en) * 1969-03-13 1971-08-24 Jurg M Ris Device for the improvement of the directional guidance of skis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130229006A1 (en) * 2012-03-05 2013-09-05 John B. Nobil Snow Deflector for Skis
US9108103B2 (en) * 2012-03-05 2015-08-18 John B. Nobil Snow deflector for skis
US11717740B2 (en) 2020-08-11 2023-08-08 Robert Ray Blocker Apparatus and method for motorized traction device to assist alpine touring snow sport equipment movement

Also Published As

Publication number Publication date
AT317053B (de) 1974-08-12
DE2231705A1 (de) 1973-01-18
FR2143794B3 (OSRAM) 1975-08-29
CH536120A (it) 1973-04-30
FR2143794A1 (OSRAM) 1973-02-09

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