EP0603791A1 - Planche de neige à partie arrière renforcée - Google Patents

Planche de neige à partie arrière renforcée Download PDF

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Publication number
EP0603791A1
EP0603791A1 EP93120524A EP93120524A EP0603791A1 EP 0603791 A1 EP0603791 A1 EP 0603791A1 EP 93120524 A EP93120524 A EP 93120524A EP 93120524 A EP93120524 A EP 93120524A EP 0603791 A1 EP0603791 A1 EP 0603791A1
Authority
EP
European Patent Office
Prior art keywords
board
longitudinal axis
lines
bending stiffness
center
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.)
Withdrawn
Application number
EP93120524A
Other languages
German (de)
English (en)
Inventor
Mark Farner
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.)
VISION WARENHANDELS GmbH
Original Assignee
VISION WARENHANDELS GmbH
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 VISION WARENHANDELS GmbH filed Critical VISION WARENHANDELS GmbH
Publication of EP0603791A1 publication Critical patent/EP0603791A1/fr
Withdrawn legal-status Critical Current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
    • A63C5/00—Skis or snowboards
    • A63C5/03—Mono skis; Snowboards

Definitions

  • the invention relates to a snowboard which has a front side (frontside) which is either symmetrical or asymmetrical with respect to the longitudinal axis H of the board and which is seen in the sliding or movement direction I of the board, and a rear side opposite this (backside).
  • the symmetrical board has an outline that is symmetrical to the board's longitudinal axis and lines of the same bending stiffness (hardness) perpendicular to the board's longitudinal axis.
  • the asymmetrical board has an outline that differs significantly on the front of the board from that on the rear.
  • the lines of the same bending stiffness (hardness) are rotated by an equal, selectable angle with respect to the longitudinal axis of the board, i.e. they intersect the longitudinal axis of the board at an angle that is not right.
  • the foot position is inclined in the same direction at an angle to the board's longitudinal axis as the lines with the same bending stiffness.
  • the lines with the same bending stiffness are rotated to the longitudinal axis of the board at the same selectable angle, i.e. they intersect the longitudinal axis of the board at an angle that is not right.
  • the foot position is also at an angle to the board's longitudinal axis, but in the opposite direction to the twisted lines of the same bending stiffness.
  • the asymmetrical board was developed. This development was followed by that of the IAS board, which is characterized by the opposing arrangement of its "inner life" to the foot position, but in which the bending stiffness properties do not allow the forces on the two sides of the board to be optimally implemented. In particular, the different stresses on the front and back of the board represent a problem that has not yet been solved.
  • the object of the invention is therefore to improve the construction of the snowboard so that both the asymmetrical and the symmetrical construction, its strength properties, in particular bending stiffness, which is also called “hardness” in technical jargon, even high loads, without the Adversely affect the driving characteristics of the board.
  • the forces acting on the rear side in a backside maneuver are namely substantially greater than the forces acting on the front side in a frontside maneuver.
  • This object is achieved in that the bending stiffness (hardness) of the board increases from the shovel and the rear to the center of the board or the foot position and the area D, E of high bending stiffness is smaller on the front than on the back of the board.
  • An essential idea of the invention is therefore to provide the front of the board with a lower bending stiffness than the rear, in that the angle at which the lines of the same longitudinal stiffness which run obliquely to the board longitudinal axis intersect this axis changes from the board ends to the board center, in such a way that the so-called hard area on the back is longer than on the front.
  • the board according to the invention differs from the known constructions by a novel distribution of the bending stiffness over the board cross-section and the board length, which also leads to a harmonious coordination of the flexibility of the board, in relation to the above-mentioned different high loading requirements for frontside and backside maneuvers.
  • This new construction can be used for both symmetrical and asymmetrical boards.
  • the lines a of the same bending stiffness in the area of the blade and the rear need not run at right angles to the longitudinal axis H of the board. They change their direction towards the middle of the board with respect to the longitudinal axis H such that they converge towards the front of the board.
  • the lines b of the same bending stiffness run from the rear in an asymmetrical board as defined above obliquely in the direction of the board center to the board longitudinal axis H such that its angle of inclination ⁇ to the board longitudinal axis H increases from the rear towards the board center C, while the lines b of the same bending stiffness between the blade and the board center C run obliquely to the board longitudinal axis H in such a way that their angle of inclination ⁇ decreases from the blade towards the center of the board.
  • SBS for stiff backside system could be chosen for the two snowboards described below, since a main feature of the board construction is the rear side, which is more rigid than the front.
  • the symmetrical board 1 shown in plan view in FIG. 1 has an outline A which is symmetrical to its longitudinal axis H.
  • the board has a rounded shovel 5 and a cut-off tail 6.
  • the front 3 and the rear 4 are waisted in their straight course approximately parallel to the longitudinal axis H, that is to say drawn in towards the center of the board C, so that the board width is somewhat in the middle is smaller than in the area of the blade and the tail.
  • the waist is of course not absolutely necessary, but should only be understood here as an example of board training.
  • the foot positions 7, 8, which are aligned obliquely to the longitudinal axis of the board, are marked on the upper side of the board. Seen in gliding or driving direction, which is denoted by I, the "regular" driver is at the front with the left foot and the "goofy” driver is at the front with the right foot.
  • the lines a of the same bending stiffness run in the area of the blade 5 and the tail 6 approximately at right angles to the longitudinal axis H of the board and towards the center of the board C with respect to the longitudinal axis, so that they converge towards the front 3.
  • the specified angle values 0 ° to 20 ° for the course of these lines are only to be understood as examples and in no way limit values.
  • the lines a of the same bending stiffness in the area of the blade do not need to cut the board's longitudinal axis at right angles, but at a different angle.
  • the area of great stiffness on the front side 3 is shorter than on the rear side 4. This is shown by the arrows 10, 11 shown on both sides of the board , 12 symbolizes the areas of great stiffness E and D on the front and rear, respectively.
  • the foot positions designated 17 and 18 in FIG. 2, which shows an asymmetrical snowboard 2, correspond to the embodiment of FIG. 1. Between them, both on the front and on the rear, lies the area of high bending stiffness, which, however, as shown by arrows 9, 19 , 20 is marked on both sides of the board top view, on the front extends only over the length G, which is essential is less than the length F on the back.
  • the lines b of the same bending stiffness from the rear 16 in the direction of the board center C to the board longitudinal axis H run obliquely in such a way that their angle of inclination ⁇ to the board longitudinal axis H increases from the rear towards the board center the present embodiment from 20 ° to 25 °, while the lines b of the same bending stiffness between the blade 15 and the board center C to the board longitudinal axis H also run obliquely, but in such a way that their angle of inclination ⁇ from the blade in the direction of the board center C decreases , in the present case, for example, from 20 ° to 5 °.
  • the bending stiffness of the board according to the invention in contrast to the known boards on the rear side 4, 14, is significantly greater than on the front side 3, 13, which means that the backside and frontside maneuvers on the corresponding sides or edges of Body of the driver transmitted pressure is compensated in contrast to the known constructions or is absorbed so that no excessive material deformation occurs.

Landscapes

  • Motorcycle And Bicycle Frame (AREA)
  • Body Structure For Vehicles (AREA)
EP93120524A 1992-12-21 1993-12-20 Planche de neige à partie arrière renforcée Withdrawn EP0603791A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9217464U DE9217464U1 (de) 1992-12-21 1992-12-21 Snowboard mit verstärkter Hinterseite
DE9217464U 1992-12-21

Publications (1)

Publication Number Publication Date
EP0603791A1 true EP0603791A1 (fr) 1994-06-29

Family

ID=6887400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93120524A Withdrawn EP0603791A1 (fr) 1992-12-21 1993-12-20 Planche de neige à partie arrière renforcée

Country Status (2)

Country Link
EP (1) EP0603791A1 (fr)
DE (1) DE9217464U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6394483B2 (en) 1997-11-19 2002-05-28 North Shore Partners Snowboard body
US6382658B1 (en) 1997-11-19 2002-05-07 North Shore Partners Method of making a snowboard having improved turning performance
US7823892B2 (en) 2007-05-04 2010-11-02 Quiksilver, Inc. Snowboard

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634135A1 (fr) * 1988-07-18 1990-01-19 Fischer Gmbh Paire de skis, en particulier pour ski alpin
DE4205381A1 (de) * 1991-02-22 1992-08-27 Head Sport Ag Ski

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634135A1 (fr) * 1988-07-18 1990-01-19 Fischer Gmbh Paire de skis, en particulier pour ski alpin
DE4205381A1 (de) * 1991-02-22 1992-08-27 Head Sport Ag Ski

Also Published As

Publication number Publication date
DE9217464U1 (de) 1993-02-18

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