EP1547654A1 - Ski - Google Patents

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Publication number
EP1547654A1
EP1547654A1 EP04300874A EP04300874A EP1547654A1 EP 1547654 A1 EP1547654 A1 EP 1547654A1 EP 04300874 A EP04300874 A EP 04300874A EP 04300874 A EP04300874 A EP 04300874A EP 1547654 A1 EP1547654 A1 EP 1547654A1
Authority
EP
European Patent Office
Prior art keywords
ski
millimeters
thickness
max
length
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.)
Granted
Application number
EP04300874A
Other languages
English (en)
French (fr)
Other versions
EP1547654B8 (de
EP1547654B1 (de
Inventor
Hervé SPANIER
Fanny Caspar
Claudia Stern
Fabrice Magoni
Jean-Paul Alussi
Stéphane Bernard
Marc Rene
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.)
Skis Rossignol SA
Skis Dynastar SA
Original Assignee
Skis Rossignol SA
Rossignol SA
Skis Dynastar SA
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 Skis Rossignol SA, Rossignol SA, Skis Dynastar SA filed Critical Skis Rossignol SA
Publication of EP1547654A1 publication Critical patent/EP1547654A1/de
Application granted granted Critical
Publication of EP1547654B1 publication Critical patent/EP1547654B1/de
Publication of EP1547654B8 publication Critical patent/EP1547654B8/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A63C5/025—Short skis

Definitions

  • the invention relates to the field of sliding sports and more especially downhill skiing. It concerns more specifically an architecture of ski specifically dedicated to skiing by children.
  • the invention seeks to optimize different dimensional parameters of skiing to address the learning of the glide by young children, combining a certain facility with stability.
  • skis used by children are of course small size.
  • the invention relates to the smaller ski sizes, typically less than 110 centimeters in length. Given their low weight and inexperience, children need skis that are flexible important and good stability. Stability can be achieved by expanding skis, to reduce the ability to switch from one edge to another.
  • the skis for children are relatively flexible, to facilitate the bending, that is to say the curve of the ski for make a turn, bending that usually results in weight and acceleration.
  • the stiffness of a ski is defined by its structure, that is to say by the number and the mechanical properties of the internal reinforcements embedded in the ski, and the positioning of these reinforcements with respect to the neutral fiber, as well as by dimensional properties of the board, ie the thickness and width of the board ski.
  • the stiffness is substantially proportional to the width of the reinforcement superior, and varies with the square of the distance of this reinforcement compared to the fiber neutral, corresponding substantially to the median thickness of the ski.
  • the solution of reducing the thickness of the ski is limited, since minimum thickness must be respected to allow anchoring of the elements of the fixation.
  • the ISO 8364 standard requires that skis must be Thick enough to allow holes 7.5 millimeters deep for the installation of the fastening screws of the fasteners.
  • the object of the invention is to provide a ski which has a increased stability, and therefore has a larger width than existing skis, while keeping a stiffness sufficiently low to allow the bending of the ski by a kid.
  • This compromise must also respect the conditions of thickness requirements imposed by the standardization aspects relating to the establishment of fasteners.
  • the invention therefore relates to a short ski, of length less than 110 centimeters, intended for the practice of skiing by children.
  • this ski has at its skid zone a region of limited thickness, limited to the front and rear by regions maximum thickness, able to receive each the elements of a fixation of security.
  • the ski has at the level of the skate a recessed area located between the stop and the heel of the binding. This area of lesser thickness therefore reduces the stiffness of the ski at least in its central part, while remaining compatible with standardized requirements in terms of implementation of fasteners.
  • the stiffness of the ski is characterized by a general flexibility which is significantly higher than that seen on children's skis produced at this day.
  • general flexibility is defined in a standardized way as being the arrow under deformation of a force of 20 decanewtons, applied on the surface ski, midway between two support points located respectively at level of the front and rear contact lines.
  • this general flexibility is between The p 3 H 2 max x 10 -5 and The p 3 H 2 max x 2.10 -5 where Lp is the load length, defined between the front and rear contact lines, and H max is the maximum thickness of the ski, both expressed in millimeters.
  • the stiffness is satisfactory when the difference in thickness between the region of lesser thickness forming the characteristic, and the maximum thickness H max is between 1 and 5 millimeters and preferably close to 1.5 millimeters.
  • the maximum thickness of the ski means a point of view structural, that is to say taking into account the thickness of the zones influencing preponderant on the overall stiffness of skiing.
  • this maximum thickness is calculated by abstracting any protuberances or zones in growth with a purpose essentially aesthetic and without major influence on the stiffness of the board.
  • the maximum thickness of the ski (H max ) is advantageously between 10 and 14 millimeters, and is preferably in the vicinity of 11 millimeters.
  • the dimensions of the characteristic hollow zone are such that this region of lesser thickness extends over a length of between 80 and 200 millimeters.
  • the length of this area is measured by the distance between the points above thick located directly in front of and behind the recessed area.
  • the maximum thickness remains constant over a fraction of the length of the ski, we will take into account the point of maximum thickness closest to the hollow.
  • the invention relates to skis for use by children, which therefore have a total length L t reduced, and less than 110 centimeters.
  • Such a ski (1) as illustrated in FIG. 1 comprises in its skid zone (2) a hollow region (3) of smaller thickness, bounded at the front and at the back by zones (4, 5) of greater thickness. These zones (4, 5) are arranged to receiving the abutment (6) and the heel (7) of the binding, by means of screws (8) placed in holes (9) provided for this purpose.
  • the zones of greater thickness (4, 5) have a thickness H max which is between 10 and 14 millimeters and preferably close to 11 millimeters.
  • the zone of maximum thickness may extend over a certain fraction of the length of the ski, and in particular in the region that hosts the elements of the fixation.
  • these zones (4, 5) of maximum thickness can include reinforcements (10, 11) to be traversed by the mounting screws (8) of fixing to improve the anchoring of the latter.
  • the region (3) between the two elements of the fastener (6, 7) has a reduced thickness, whose value H min is less than the maximum thickness value H max of 1 to 5 millimeters, and preferably 1, 5 millimeters.
  • the length L c of the hollow zone (3) is defined between the most forward point of maximum thickness of the rear zone (5), and the rearmost point of maximum thickness of the front zone (4).
  • the breaks in slope (14, 15) between the characteristic hollow zone (3) and the areas of greater thickness (4, 5) may be variable depending on the reinforcements included in the structure of the ski, and manufacturing constraints and in particular by molding.
  • the ski (1) has a general flexibility that is in a specific range, corresponding to skis much more flexible than existing skis in equivalent ranges, while having a width l pad at the level of skate which is on the contrary higher, and typically between 73 and 85 millimeters.
  • this flexibility Sg is measured in a standardized manner, by arranging the ski on two bearing points (20, 21), arranged at the level of the front and rear contact lines L CAV , L CAR .
  • the distance between these two front and rear contact lines is defined as the bearing length L P.
  • Halfway between these two points (20, 21), the ski receives a vertical force F which for children's skis is normalized to 20 decanewtons.
  • the flexibility Sg is defined as the vertical displacement of the exercise point of the force F.
  • this flexibility S g is between L p 3 / H 2 max ⁇ 10 -5 and L p 3 / H 2 max x 2.10 -5 in which the length and thickness are measured in millimeters.
  • This flexibility is to be compared with values of about 20 millimeters, corresponding to those measured on existing skis.
  • the ski according to the present invention the advantage of simultaneously having stability and flexibility widely superior to the existing ski, while complying with the requirements of the standardizations.

Landscapes

  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Lubricants (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP04300874A 2003-12-24 2004-12-10 Ski Expired - Fee Related EP1547654B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0351197A FR2864451B1 (fr) 2003-12-24 2003-12-24 Ski
FR0351197 2003-12-24

Publications (3)

Publication Number Publication Date
EP1547654A1 true EP1547654A1 (de) 2005-06-29
EP1547654B1 EP1547654B1 (de) 2008-04-16
EP1547654B8 EP1547654B8 (de) 2008-07-02

Family

ID=34531408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04300874A Expired - Fee Related EP1547654B8 (de) 2003-12-24 2004-12-10 Ski

Country Status (5)

Country Link
US (1) US7083183B2 (de)
EP (1) EP1547654B8 (de)
AT (1) ATE392237T1 (de)
DE (1) DE602004013110T2 (de)
FR (1) FR2864451B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2745884A1 (de) * 2012-12-20 2014-06-25 Fischer Sports GmbH Ski, insbesondere Tourenski

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2896424B1 (fr) * 2006-01-25 2008-04-18 Salomon Sa Planche de glisse ou de roulage
FR2908665B1 (fr) * 2006-11-22 2009-03-20 Salomon Sa Ski
FR2939323B1 (fr) * 2008-12-08 2011-03-25 Salomon Sas Ski alpin avec flexion controlee
SI24530A (sl) 2013-11-15 2015-05-29 Elan, D.O.O. Kratka smučka
JP2017148502A (ja) * 2017-01-23 2017-08-31 公裕 土江 スキー板
USD967275S1 (en) * 2020-07-10 2022-10-18 Yvolve Sports Ltd. Scooter with front plate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2337564A1 (fr) * 1976-01-12 1977-08-05 Sarver John Skis courts diriges par la partie arriere
US5143395A (en) * 1990-04-05 1992-09-01 Head Sportgerate Gesellschaft M.B.H. & Co. Ohg Ski
US5375868A (en) * 1993-03-03 1994-12-27 Sarver; Jeff Ski having compound curve undersurface
WO1997028857A1 (en) * 1996-02-06 1997-08-14 Shortski, Naamloze Vennootschap Ski
US20010035630A1 (en) * 2000-04-14 2001-11-01 Skis Rossignol S.A. Alpine Ski

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007948A (en) 1975-05-13 1977-02-15 Allied Chemical Corporation Release for safety belt tension-relieving apparatus
US4007946A (en) * 1976-01-12 1977-02-15 John Jeffery Sarver Short ski
DE3675144D1 (de) * 1985-04-08 1990-11-29 Golden Oak Res & Dev Inc Schneeski und methode zu seiner herstellung.
US5871225A (en) * 1989-09-29 1999-02-16 Sutherland; Robert L. Short, wide ski and binding
US5286051A (en) * 1990-04-04 1994-02-15 Atomic Skifabrik Alois Rohrmoser Alpine ski with a minimum width and specific width/length ratio
WO1992022361A1 (en) * 1991-06-17 1992-12-23 Trimble & Co., Inc. Ski binding block
US5603522A (en) * 1991-08-29 1997-02-18 Nelson; Paul N. Wide short ski
FR2689411B1 (fr) * 1992-04-01 1994-06-03 Salomon Sa Ski comprenant une embase et un raidisseur en deux parties relie a l'embase.
FR2700476B1 (fr) * 1993-01-19 1995-03-10 Rossignol Sa Ski de fond.
US6382658B1 (en) * 1997-11-19 2002-05-07 North Shore Partners Method of making a snowboard having improved turning performance

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2337564A1 (fr) * 1976-01-12 1977-08-05 Sarver John Skis courts diriges par la partie arriere
US5143395A (en) * 1990-04-05 1992-09-01 Head Sportgerate Gesellschaft M.B.H. & Co. Ohg Ski
US5375868A (en) * 1993-03-03 1994-12-27 Sarver; Jeff Ski having compound curve undersurface
WO1997028857A1 (en) * 1996-02-06 1997-08-14 Shortski, Naamloze Vennootschap Ski
US20010035630A1 (en) * 2000-04-14 2001-11-01 Skis Rossignol S.A. Alpine Ski

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2745884A1 (de) * 2012-12-20 2014-06-25 Fischer Sports GmbH Ski, insbesondere Tourenski

Also Published As

Publication number Publication date
ATE392237T1 (de) 2008-05-15
US20050140117A1 (en) 2005-06-30
EP1547654B8 (de) 2008-07-02
FR2864451B1 (fr) 2006-01-27
FR2864451A1 (fr) 2005-07-01
DE602004013110T2 (de) 2009-06-10
US7083183B2 (en) 2006-08-01
DE602004013110D1 (de) 2008-05-29
EP1547654B1 (de) 2008-04-16

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