US3360277A - Structure for snow skis and the like, of pressed metal plate, preferably of steel - Google Patents

Structure for snow skis and the like, of pressed metal plate, preferably of steel Download PDF

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Publication number
US3360277A
US3360277A US446837A US44683765A US3360277A US 3360277 A US3360277 A US 3360277A US 446837 A US446837 A US 446837A US 44683765 A US44683765 A US 44683765A US 3360277 A US3360277 A US 3360277A
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ski
skis
basic elements
steel
pressed
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US446837A
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English (en)
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Salvo Mario
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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
    • A63C5/12—Making thereof; Selection of particular materials

Definitions

  • the present invention relates to snow skis and particularly a structure of snow skis obtained by means of metal plates, preferably thin sheet steel, suitably pressed and welded together.
  • the object of the present invention is the provision of a ski formed from relatively few elements of thin metal sheet, preferably steel sheet, suitably pressed and welded at their edges or other joining zones, such structures resulting, because of their configuration, in resilient, light weight skis that withstand, better than any other type known heretofore, all the stresses to which a ski may be subjected in use, and in particular also the torsion stresses that are encountered for instance during descents or ascensions in a direction transverse to the slope when the ski is canted relative to the ground.
  • the ski presents a structure constituted by a bottom element of thin pressed sheet steel, so as to form the ski sole and the longitudinal edges thereof are such as to replace the usual laminae for reinforcing the ski corners.
  • Said structure includes a second element, pressed so as to form, after welding on the first element, a hollow structure, preferably provided with reinforcing ribs and on the top surface whereof there will be applied the ski footbinding, while a longitudinal reinforcing element, also made of pressed sheet metal, is placed inside, between the two above mentioned elements, and extends over the entire length of the ski, or over a portion of the same.
  • the advantages offered by the structure of the present invention are manifold, and chief among them are the following: possibility of adoption of very thin sheet gauges so as to be able to use sheet steel without exceeding the usual weight limits; the abolition of the usual overlaid laminae to protect the lower edges; the possibility of obtaining skis of different lengths with a same set of dies requiring only the variation of the combination of the elements constituting same, to obtain the desired different lengths; and the resistance that such a type of ski structure presents to all stresses to which such instruments are subjected during their use.
  • the ski structure according to the invention may be adapted, with suitable changes, also for water skis and the like.
  • FIG. 1 is a cross-section of a ski structure according to the invention, through the central part of the ski itself;
  • FIG. 2 is a schematic plan view, at a much reduced scale relative to the preceding figure, of a complete ski according to the present invention.
  • the main parts of the structure of the present invention are two, namely the top element 1, shaped as a channel, and adapted to constitute the top and the sides of a ski, and the lower element or sole 2, that constitutes the bottom thereof, resting on the ground.
  • the elements 1 and 2 terminate at their longitudinal edges in flanges protruding outwardly, shown in the drawing at 3 and 3' respectively, and adapted to overlap and be welded together, preferably with a continuous perfectly tight seam, obtained for instance by means of electric resistance welding rollers.
  • the bottom element 2 between the longitudinal flanges'3' is slightly recessed so as to form a seat for the application of a strip of plastic material 4, or of another suitable material, constituting the surface sliding on the snow.
  • Said strip 4 may be secured in the recess of element 2. in various Ways, preferably through glueing. It is thus evident how with this type of ski sole application the longitudinal laminae for the protection of the ski edges are eliminated because this function is performed directly, as already mentioned, by the outer borders 3 of the sheet steel element 2.
  • the element 1 is provided with longitudinal ribs, two of which are shown in FIG. 1, by the reference numeral 5, ribs that are obtained by pressing, and therefore practically at no extra cost, and which at the same time impart a greater strength to the structure.
  • a shaped element also of metal sheet, that in the illustrative example has the shape of a U with the ends of its arms bent over horizontally towards the outside, said horizontal flanges being Welded to the underside of the flat central zone of element 1.
  • Such a shaped element 6 shall preferably have such a size that its lower portion will abut against the upper side of the sole 2 without the need of being secured thereon.
  • elements 1 and 2 constitute, after their assemblage, a girder which, during its use is subjected to a bending stress that places the upper fibers under compression, and the lower ones under tension.
  • the stresses that may be reached under specific conditions are very high inasmuch as there is a remarkable longitudinal flexibility of the structure.
  • Sheet steel as is known, is a material that costs less than other alloys, that heretofore have been tentatively tried for use in such constructions, and at the same time is easily workable, in ready supply, and does not require the corner reinforcements that, even on wooden skis, are made 3 of steel. Moreover, the hardness and abrasion resistance of steel, as well as its flexibility, are well known.
  • FIG. 2 represents, as already stated, a schematic plan view of a ski according to the present invention.
  • line XX indicates the trace of the vertical plan passing through the narrowest section of the ski. It is known in fact how, with the exception of some types designed for particular performances, the skis are narrower in the zone where the skiers shoe is fixed, and how such a width becomes increasingly wider towards the fore portion or point of the ski, and, to a smaller extent, also tow-ards the rear portion or tail of the ski itself.
  • the thickness that is the dimension shown as s in FIG. 1, is also variable along the ski. In particular its thickness is greater in said zone, where the shoe is fixed, and diminishes both towards the ski point and towards its tail.
  • the greater thickness section is expressly made to coincide with the minimum width section; also, the variation of the width as well as of the thickness is symmetrical for a certain ,distance in both directions from plane XX. in FIG. 2, there will be arranged one after the other, as
  • skis according to the present invention may be carried out for all the pre-established lengths of ski, practically with the same dies, which allows a remarkable saving in manufacturing costs, and thus an additional advantage.
  • these will be arranged one after the other, as sections Y- Y and ZZ, that are equal, are made to coincide. And these short skis will be easily obtained using the same dies only by eliminating the intermediate die portion, corresponding to the length YY, ZZ.
  • ski elements When instead it is desired to obtain skis of the maximum length, that is that shown in FIG. 2, the ski elements will be pressed with dies including also the portion between the lines YY and ZZ.
  • a ski comprising two basic elements pressed from thin strong metal and spaced apart over most of their width, and a single reinforcing member pressed from sheet metal, both said basic elements having at both longitudinal edges thereof two flat horizontal marginal flanges that are disposed one on top of the other and welded together by continuous welds so as to constitute continuous and sharp side edges of the ski, said reinforcing member being U-shaped and being narrower than said basic elements and being disposed between said two basic elements and being welded to only one of said basic elements.
  • a ski as claimed in claim 1 having a longitudinal midportion of sustantial length and of constant crosssectional configuration over its length.
  • a ski comprising upper and lower sheet metal members which together have a box-shaped cross-sectional configuration, each said member having outwardly extending flanges at its marginal edges with the flanges disposed at the lower corners of the box-shaped cross section of the ski and Welded together, and a U-shaped reinforcing member disposed inside the box between said members and being secured by welding to one only of said members and touching but being unsecured to the other of said members.
  • a ski as claimed in claim 3 said U-shaped member having outwardly extending flanges that are welded to the underside of the upper of said members.
  • a ski as claimed in claim 3 the lower of said members being pressed into a sinuous cross-sectional configuration such that it has a downwardly opening recess between its marginal flanges, said recess extending most of the width of the ski, and a strip of plastic secured in said recess and having its lower surface substantially flush with the lower surfaces of said flanges.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
US446837A 1964-04-28 1965-04-09 Structure for snow skis and the like, of pressed metal plate, preferably of steel Expired - Lifetime US3360277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT924264 1964-04-28

Publications (1)

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US3360277A true US3360277A (en) 1967-12-26

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US446837A Expired - Lifetime US3360277A (en) 1964-04-28 1965-04-09 Structure for snow skis and the like, of pressed metal plate, preferably of steel

Country Status (6)

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US (1) US3360277A (cs)
AT (1) AT274625B (cs)
CH (1) CH412671A (cs)
DE (1) DE1918146U (cs)
NO (1) NO115168B (cs)
SE (1) SE317310B (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3498626A (en) * 1967-12-14 1970-03-03 George C Sullivan Metal ski and method of fabrication
US5405161A (en) * 1994-02-04 1995-04-11 Dennis Young Alpine ski with exaggerated tip and tail
US6203037B1 (en) * 1998-12-07 2001-03-20 Reno Wilson, Inc. Metal sports board
WO2007127301A3 (en) * 2006-04-26 2008-08-14 Anthony Joseph Caravetta Gripping structures for competition boards
US20100025966A1 (en) * 2008-07-22 2010-02-04 Tobias Heil Ski, in particular alpine ski

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602979B1 (fr) * 1986-08-20 1990-09-21 Salomon Sa Dispositif amortisseur de chocs et vibrations entre un ski et la fixation de la chaussure
DE3914189A1 (de) * 1989-04-28 1990-10-31 Blizzard Oesterreich Ges M B H Skiherstellungsverfahren und ski, hergestellt nach diesem verfahren
ATA188391A (de) * 1991-09-19 1993-05-15 Kaestle Ag Alpinski

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1552990A (en) * 1924-05-19 1925-09-08 Everett M Hunt Ski
CH152918A (de) * 1931-02-28 1932-02-29 Aluminium Ind Ag Ski aus Leichtmetall-Legierung und Verfahren zur Herstellung desselben.
US2434851A (en) * 1943-12-04 1948-01-20 Christian K Hoerle Composite wood and metal ski
US2560693A (en) * 1947-05-16 1951-07-17 Tey Mfg Corp Ski
US3145998A (en) * 1962-04-02 1964-08-25 Hart Ski Mfg Co Inc Bottom structure for laminated ski

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1552990A (en) * 1924-05-19 1925-09-08 Everett M Hunt Ski
CH152918A (de) * 1931-02-28 1932-02-29 Aluminium Ind Ag Ski aus Leichtmetall-Legierung und Verfahren zur Herstellung desselben.
US2434851A (en) * 1943-12-04 1948-01-20 Christian K Hoerle Composite wood and metal ski
US2560693A (en) * 1947-05-16 1951-07-17 Tey Mfg Corp Ski
US3145998A (en) * 1962-04-02 1964-08-25 Hart Ski Mfg Co Inc Bottom structure for laminated ski

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3498626A (en) * 1967-12-14 1970-03-03 George C Sullivan Metal ski and method of fabrication
US5405161A (en) * 1994-02-04 1995-04-11 Dennis Young Alpine ski with exaggerated tip and tail
US6203037B1 (en) * 1998-12-07 2001-03-20 Reno Wilson, Inc. Metal sports board
WO2007127301A3 (en) * 2006-04-26 2008-08-14 Anthony Joseph Caravetta Gripping structures for competition boards
US20100025966A1 (en) * 2008-07-22 2010-02-04 Tobias Heil Ski, in particular alpine ski

Also Published As

Publication number Publication date
SE317310B (cs) 1969-11-10
CH412671A (it) 1966-04-30
NO115168B (cs) 1968-08-12
AT274625B (de) 1969-09-25
DE1918146U (de) 1965-06-16

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