US3372943A - Composite ski - Google Patents

Composite ski Download PDF

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Publication number
US3372943A
US3372943A US492055A US49205565A US3372943A US 3372943 A US3372943 A US 3372943A US 492055 A US492055 A US 492055A US 49205565 A US49205565 A US 49205565A US 3372943 A US3372943 A US 3372943A
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United States
Prior art keywords
ski
edge strips
edge
covering
composite
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
US492055A
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English (en)
Inventor
Grossauer Rudolf
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.)
BRUDER RIHA KG
Original Assignee
BRUDER RIHA KG
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Filing date
Publication date
Application filed by BRUDER RIHA KG filed Critical BRUDER RIHA KG
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Publication of US3372943A publication Critical patent/US3372943A/en
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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
    • A63C5/126—Structure of the core
    • 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 main carrying lframe of a composite ski comprises interconnected resilient edge strips increasing in cross section from the shovel to the binding portion of the ski.
  • Two covering sheets connect the spaced edge strips and extend across the top and bottom of the frame.
  • the edge strips have longitudinal grooves on their ⁇ inside which accommodate the edges of the covering sheets.
  • This invention relates to a composite ski, in which those parts which mainly carry the load consist of metal or synthetic resin and which ski comprises edge strips provided with reinforcing edge members that serve preferably also as a bordering for .a tread covering.
  • the edge strips have substantially only the object of providing for a sharp outside edge of the body of the ski and of holding the reinforcing edge members.
  • the body of the ski is made from sectional sheet metal members joined by welding to form a box section, which has outwardly directed flanges or edge steps for mounting the edge strips.
  • At least the lower sectional sheet metal member of the box section is in this case preferably of channel section.
  • Suficiently sharp outside edges cannot be provided between the flanges and the web of this sectional sheet metal member so that edge strips must be provided for this reason alone.
  • inserted edge strips serve only as spacers between the upper and lower, sectional sheet metal members, which constitute the main carrying members of the ski.
  • the carrying capacity and torsional resistance of the ski are at least mainly due to a suitable design of the box section or of a carrying member of wood, which may be faced with plates of metal or plastics material. Wooden inserts suffer from fatigue so that such a ski has only a short life. Besides, all skis of this type are complicated in design and manufacture. Skis having a box section body are stiff so that they often fail to reach the skiing properties ofthe high-grade skis of wood, whereas the latter have only a short life.
  • This invention relates to a ski of the type mentioned first hereinbefore and resides substantially in that the edge strips made from resilient material have a large cross-section, which increases from the shovel to the area of the binding, and are connected to form a carrying frame, which constitutes the main carrying member of the ski, and which has longitudinal legs that are additionally interconnected by transverse webs or the like, which serve as spacers, said frame being covered at least at the top or steel strips in- ICC bottom.
  • the main carrying member is constituted in the ski according to the invention by the carrying frame formed by the edge strips.
  • the cross-section of the edge strips may be dimensioned so that the desired elastic and strength properties can be adjusted in each portion of the llength of the ski.
  • the edge strips themselves may be made from steel, light metal, preferably aluminum alloy, or of synthetic resin, which is preferably reinforced, and may be either solid or hollow. In each case, the remaining parts of the ski are of minor signiiicance for its skiing properties. Different damping properties may be provided for, if desired, by a variation in the design of the cross-webs and/ or of the coverings or the like. Harder or softer skis may be obtained merely by a suitable dimensioning of the edge strips. The manufacture is much simplified bythe design according to the invention.
  • two covering sheets of metal or of synthetic resin, which may be reinforced, are provided, which cover the top and bottom of the carrying frame and are connected to the edge strips.
  • These covering sheets form preferably also the spacer, which prevents an outward bending of only one frame leg and at the same time affords to the ski the required resistance to torsion.
  • the edges of the covering sheets are inserted and secured, preferably by adhesive in longitudinal grooves which are formed in the inside surfaces of the edge strips. In this arrangement, the joints are covered toward the outside. The .adhesive areas are much larger than when the covering sheets are merely adhered to the top or bottom of the edge strips.
  • the loads ⁇ are directly transmitted from the covering sheets to the boundary wal'ls of the grooves whereas the adhesive joints are not subjected to stresses tending to separate said joints.
  • the longitudinal grooves arev provided directly beside the upper or lower inside edge of the edge strips rand the height of the edge strips decreases from the binding portion to the shovel portion so that these longitudinal grooves .are spaced apart adjacent to the binding and merge adjacent to the Vshovel to form a wider groove, which receives the edges of both covering sheet.
  • the lower covering sheet has preferably upwardly offset edges for entering the grooves so that its underside, which is disposed beside the edge strips, forms together with the underside of the edge strips a plane backing surface for the tread covering.
  • edge strips may readily be connected by a single cross-web, which may be disposed at the top, at the bottom or on an intermediate leve'l, or by crossing struts, and the ski body may be lled with other means for closing the frame at the top and bottom and for mounting the binding .and the tread covering.
  • the cavity which is left between the edge strips may be filled with plastics material, preferably foamed plastics material, in which the spacers or a backing plate may be embedded .adjacent to the binding. Even if top and it may be suitable to fill the cavity with foamed plastics material because this will result in a damping of the resilience to some extent and in an increased bulging resistance of the coverings and enables the use of thinwalled coverings.
  • FIG. 1 is a top plan view showing a ski and FIGS. 2 and 3 are transverse sectional views taken on lines II-II and III- III of FIG. l.
  • the edge strips 1, 2 are formed on their underside withv grooves 4, which receive one ange of angle-section reinforcing edge members 5.
  • the inside faces of the edge strips 1, 2 and of the spacer 3 are pro vided close to the top and bottom edges with horizontal grooves 6 and 7, respectively, which receive the edges of covering sheets 8, 9. These edges are adhesively secured in the grooves 6 and 7.
  • the edges 10 of the lower covering sheet are upwardly offset so that the underside of the covering sheet 9 is Hush with the underside of the edge strips 1, 2.
  • the height and cross-section of the marginal strips decreases from adjacent to the binding (cross-section III) toward the shovel.
  • the grooves 6, 7 merge to form a common groove 6a adjacent to the shovel.
  • the edges of the two covering sheets 8, 9 lie against each other in the groove 6a.
  • the covering sheets are preferably made from sheet metal and are provided at the top with a synthetic resin facing 11 held between the edge strips and at the bottom with a tread covering 12, which isalso made from synthetic resin and extends to the reinforcing edge members 5 and is for-med with a machined guiding groove 13.
  • a composite ski which has a shovel portion and a binding portion, said ski comprising a resilient carrying frame constituting the main carrying member of the ski, said frame comprising interconnected edge strips made of resilient material and increasing in cross-section from said shovel portion toward said binding portion, spacers connected between said edge strips, and two covering sheets connected to the edge strips and extending across the top and bottom of said frame said edge strips being formed on their inside surfaces with longitudinal grooves close to the upper and lower edges of the inside surfaces of the edge strips, 4the height of the edge strips decreasing from the binding portion to the shovel portion, said longitudinal grooves in the inside surfaces of each edge strip being spaced apart adjacent the binding portion and merging in the shovel portion to form a single groove, and said covering sheets having edges accommodated and secured in said longitudinal grooves.

Landscapes

  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Laminated Bodies (AREA)
  • Road Paving Structures (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US492055A 1964-10-09 1965-10-01 Composite ski Expired - Lifetime US3372943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT860264A AT271283B (de) 1964-10-09 1964-10-09 Aus mehreren Einzelteilen zusammengesetzter Ski

Publications (1)

Publication Number Publication Date
US3372943A true US3372943A (en) 1968-03-12

Family

ID=3606951

Family Applications (1)

Application Number Title Priority Date Filing Date
US492055A Expired - Lifetime US3372943A (en) 1964-10-09 1965-10-01 Composite ski

Country Status (4)

Country Link
US (1) US3372943A (de)
AT (1) AT271283B (de)
CH (1) CH429532A (de)
DE (1) DE1478169A1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736609A (en) * 1971-04-05 1973-06-05 Compo Tek Corp Laminated water ski
US4293142A (en) * 1979-07-16 1981-10-06 K-2 Corporation Vibration damped ski
US5249819A (en) * 1988-09-23 1993-10-05 Head Sportgerate Gesellschaft M.B.H. & Co., Ohg Ski having a hollow body of uniform width
US5292148A (en) * 1991-11-19 1994-03-08 Skis Rossignol S.A. Shaped ski of non-rectangular cross section
US5687983A (en) * 1994-10-27 1997-11-18 Gsi, Inc. Light weight ballet skis and method of manufacture
US5948472A (en) * 1996-09-10 1999-09-07 Lawrie Technology, Inc. Method for making a pultruded product
USRE36453E (en) * 1993-04-16 1999-12-21 Skis Rossignol S.A. Ski including sides and an upper shell
US20180185736A1 (en) * 2016-12-29 2018-07-05 Völkl Sports GmbH & Co. KG Lower flange having a bracketing effect

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT405023B (de) * 1992-03-23 1999-04-26 Wolfgang Lehner Ski
AT405022B (de) * 1992-03-23 1999-04-26 Wolfgang Lehner Ski
DE102012110345B4 (de) * 2012-10-29 2015-07-09 Head Technology Gmbh Gleitbrett

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920898A (en) * 1956-06-19 1960-01-12 Richard T Metcalfe Ski having a foamed plastic body portion
CA655338A (en) * 1963-01-08 Riha Hans Metal ski
US3074732A (en) * 1961-06-20 1963-01-22 Riha Hans Metal ski
US3132874A (en) * 1960-10-12 1964-05-12 Baudou Antoine Ski
US3151873A (en) * 1962-06-20 1964-10-06 Riha Hans Metal ski
US3208761A (en) * 1963-09-04 1965-09-28 George C Sullivan Metal ski with cellular plastic structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA655338A (en) * 1963-01-08 Riha Hans Metal ski
US2920898A (en) * 1956-06-19 1960-01-12 Richard T Metcalfe Ski having a foamed plastic body portion
US3132874A (en) * 1960-10-12 1964-05-12 Baudou Antoine Ski
US3074732A (en) * 1961-06-20 1963-01-22 Riha Hans Metal ski
US3151873A (en) * 1962-06-20 1964-10-06 Riha Hans Metal ski
US3208761A (en) * 1963-09-04 1965-09-28 George C Sullivan Metal ski with cellular plastic structure

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736609A (en) * 1971-04-05 1973-06-05 Compo Tek Corp Laminated water ski
US4293142A (en) * 1979-07-16 1981-10-06 K-2 Corporation Vibration damped ski
US5249819A (en) * 1988-09-23 1993-10-05 Head Sportgerate Gesellschaft M.B.H. & Co., Ohg Ski having a hollow body of uniform width
US5292148A (en) * 1991-11-19 1994-03-08 Skis Rossignol S.A. Shaped ski of non-rectangular cross section
USRE36586E (en) * 1991-11-19 2000-02-29 Skis Rossignol S.A. Shaped ski of non-rectangular cross section
USRE36453E (en) * 1993-04-16 1999-12-21 Skis Rossignol S.A. Ski including sides and an upper shell
US5687983A (en) * 1994-10-27 1997-11-18 Gsi, Inc. Light weight ballet skis and method of manufacture
US5948472A (en) * 1996-09-10 1999-09-07 Lawrie Technology, Inc. Method for making a pultruded product
US20180185736A1 (en) * 2016-12-29 2018-07-05 Völkl Sports GmbH & Co. KG Lower flange having a bracketing effect
US10780339B2 (en) * 2016-12-29 2020-09-22 Völkl Sports GmbH & Co. KG Lower flange having a bracketing effect

Also Published As

Publication number Publication date
DE1478169A1 (de) 1969-08-21
CH429532A (de) 1967-01-31
AT271283B (de) 1969-05-27

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