EP1920800A1 - Snowboard oder Rollerboard mit unterschiedlichen Faserdichten - Google Patents

Snowboard oder Rollerboard mit unterschiedlichen Faserdichten Download PDF

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Publication number
EP1920800A1
EP1920800A1 EP07019600A EP07019600A EP1920800A1 EP 1920800 A1 EP1920800 A1 EP 1920800A1 EP 07019600 A EP07019600 A EP 07019600A EP 07019600 A EP07019600 A EP 07019600A EP 1920800 A1 EP1920800 A1 EP 1920800A1
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EP
European Patent Office
Prior art keywords
board
fibers
reinforcement
longitudinal
concentrations
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Withdrawn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
EP07019600A
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English (en)
French (fr)
Inventor
David Adamczewski
Henri Rancon
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.)
Salomon SAS
Original Assignee
Salomon SAS
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 Salomon SAS filed Critical Salomon SAS
Publication of EP1920800A1 publication Critical patent/EP1920800A1/de
Withdrawn legal-status Critical Current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
    • A63C5/12—Making thereof; Selection of particular materials
    • 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

Definitions

  • the invention relates to the field of gliding boards or rolling intended for the practice of surfing on snow or water, ski on snow or water, skateboard, or other.
  • a board traditionally has a length measured in a longitudinal direction between a first end and a second end, a width measured in a direction transverse between a first edge and a second edge, and a height measured between a bottom and a top.
  • the board generally comprises a first reinforcement which extends parallel to the underside or above, the reinforcement comprising fibers. These can be made from glass, carbon, aramid or any suitable material, and woven to form the reinforcement structure. In addition, a bond such as a resin allows the cohesion of the fibers.
  • the first reinforcement is intended to give the board at least part of its mechanical properties.
  • the board has a sandwich structure, which is both lightweight and mechanically resistant. This is particularly the case in snow surfing, or snowboarding.
  • a user has both feet retained on the board, respectively in a first and a second reception area.
  • the feet are each oriented in a substantially transverse direction of the board. This facilitates lateral support, with the heels or toes of the feet.
  • the board is mechanically stressed, particularly in bending along a transverse axis or in torsion along a longitudinal axis.
  • the reinforcement located towards the top for example the second, has a surface with reliefs. These last serve in particular to increase or on the contrary to reduce the mechanical resistance of certain zones of the board.
  • boards according to the document FR 2,838,062 have tops with reliefs with facets, projections, or depressions.
  • a board with a rib or central longitudinal projection is more flexible in torsion along a longitudinal axis, compared to a board whose cross section would be of equivalent surface but the top would be flat.
  • the mechanical properties of this board are very interesting.
  • the relief above causes some disadvantages.
  • the object of the invention is to give a board the mechanical qualities which are those usually obtained by means of a relief on the top, while conferring on the top a regular geometry able to directly receive a device of retained below plan.
  • the invention proposes a sliding or rolling board which has a length measured in a longitudinal direction between a first end and a second end, a width measured in a direction transverse between a first edge and a second edge, and a height measured between a bottom and a top, the board comprising a first reinforcement which extends parallel to the bottom or above, the reinforcement comprising fibers.
  • the board according to the invention is characterized in that the first reinforcement has different areas for which the fiber concentrations are different.
  • the fibers are tighter in some areas and more spaced in others, including when the reinforcement comprises woven fibers. As a result, the mechanical properties of these areas differ.
  • An advantage that arises is to allow easy mounting of the retainers on a board whose mechanical characteristics are selected.
  • Another advantage is the simplicity of manufacture of the board with a corollary, namely a reduced cost.
  • the first embodiment is presented using FIGS. 1 to 7.
  • a snowboard 1 has a length measured in a longitudinal direction between a first end 2 and a second end 3.
  • the longitudinal direction is marked with the axis central longitudinal Lo.
  • the first 2 and second 3 ends are each rounded, but they could alternatively have a different shape like that of a tip, or a fin.
  • the board 1 also has a width measured in a transverse direction between a first lateral edge 4 and a second lateral edge 5, as well as a height measured between a gliding underside or face 6 and a receiving top or face. cross direction is identified using the median transverse axis Wo.
  • the edge of the board includes the ends and edges. For each edge, the dimension line according to the embodiment shown is concave with respect to the longitudinal direction Lo.
  • transverse direction is perpendicular to the longitudinal direction, and is parallel to the sliding face 6.
  • the board 1 also has, from the first end 2 to the second end 3, a first end zone 8, a first contact line W1, a central zone 9, a second contact line W2, and a second zone of contact. end 10.
  • the central zone 9 itself comprises successively, between the contact lines W1, W2, a first intermediate zone 15, a first retention zone 16, a second intermediate zone 17 disposed at the central axis Wo, a second retaining zone 18, and a third intermediate zone 19. It is noted that the end zones 8, intermediate 15, retaining 16, intermediate 17, retaining 18, intermediate 19, and end 10, follow one another longitudinally .
  • Each retaining zone 16, 18 is provided to receive a user's foot restraint.
  • the devices, not shown, can be secured to the board 1 by means such as screws.
  • Each retaining zone 16, 18 is provided for this purpose with threaded orifices 20.
  • Each of the lines of contact W1, W2 is a line, substantially transverse to the board 1, at which the sliding face 6 touches a flat surface when the board 1 rests on the surface without external influence.
  • the general appearance of the board 1 is that of an elongated plate.
  • the underside 6 is slightly concave between the lines of contact W1, W2. It has a hollow or inner round which extends along the central zone 9, substantially from the first 15 to the third intermediate zone.
  • the rounding has a regular geometry.
  • the top 7 has two slight prominences made by greater thicknesses in the retaining zones 16, 18.
  • the board is slightly reduced in width between the edges 4, 5 at the second intermediate zone 17.
  • the height of the board 1 is shown in section in FIG.
  • the board 1 From the sliding face 6 to the receiving face 7, the board 1 has a sole 21, a first reinforcement 22, a core 23, a second reinforcement 24, and a protective layer 25.
  • each reinforcement 22, 24 extends parallel to the underside 6 or above 7.
  • the board may not include any protective layer.
  • the sole 21 is made for example with a plastic material containing polyethylene.
  • the protective layer 25 is made, for example, of a plastics material containing an acetyl-butadiene-styrene.
  • each of the reinforcements 22, 24 comprises fibers impregnated with a resin.
  • the fibers may be made of any material, or any mixture of materials, such as glass, carbon, aramid, metal, or the like.
  • the core 23 comprises a main body 26 which gives it its general appearance.
  • the main body 26 comprises for example wood, a foam of a synthetic material, or any other material.
  • the reinforcements 22, 24 and the core 23 form a sandwich panel which extends at least 50% of the surface of the board, and preferably substantially over the entire surface.
  • the board 1 further comprises a first side sill 30 located at the first side edge 4, and a second side sill 31 located at the second side edge 5.
  • a spar 30, 31 comprises for example a synthetic material, such as acetyl-butadiene-styrene.
  • a portion of the board may be box type, while another is of the shell type.
  • the edge 32 also provides a peripheral edge 32 which borders the sole 21.
  • the edge 32 is continuous but it could also be segmented, or not extend over the entire periphery. For example it could include a portion along the first edge 4 and a portion along the second edge 5.
  • the edge 32 preferably comprises a metal, or a metal alloy, such as steel, or the like.
  • a reinforcement 22, 24 of the board 1 has different areas for which the fiber concentrations are different. It will be seen later that this feature may relate to any reinforcement of the board, particularly the first 22, the second 24, or any additional reinforcement.
  • the board according to the invention has mechanical properties which are obtained according to the prior art with reinforcements whose relief varies, but whose fibers are distributed with homogeneity.
  • the fibers of a reinforcement are associated to form multifilament locks 40, 41.
  • the latter because they contain a significant number of fibers, are easy to handle and to implement industrially.
  • the fibers or wicks 40, 41 of a reinforcement 22, 24 are woven.
  • a reinforcement 22, 24 comprises a network of fibers or chain locks 40 and a network of fibers or weft threads 41.
  • the warp or weft fibers 40 and weft 41 are oriented perpendicularly. one against the other.
  • the warp fibers or strands 40 are oriented in the longitudinal direction Lo, whereas the fibers or weft strands 41 are oriented in the transverse direction Wo of the board.
  • different angles of orientation can be provided between the wicks 40, 41 or with respect to the longitudinal directions L 0 and transverse W o.
  • the locks 40, 41 are interwoven to form a regular mesh fabric.
  • a warp lock 40 passes alternately above and below the weft locks 41.
  • a weft lock 41 passes alternately above and below the warp locks 40.
  • it can alternatively an irregular mesh, or with a larger pitch, is planned.
  • the locks 40, 41 can be arranged more or less close to each other. They 40, 41 can be tight or on the contrary more spaced.
  • the distance between the locks directly influences the concentration of the fibers. Of course, the closer the locks are, the higher the concentration of the fibers.
  • the plate 1 As shown in FIG. 5, the plate 1 according to the first embodiment has zones 51 to 55 for which the concentrations of the fibers or wicks 40, 41 are specific. Thus, from the first lateral edge 4 to the second lateral edge 5, the Plate 1 has successively a first 51, a second 52, a third 53, a fourth 54, and finally a fifth 55 longitudinal zone. These areas 51, 52, 53, 54, 55 follow each other transversely. Of course, each of the longitudinal zones 51 to 55 extends in the longitudinal direction Lo, substantially from the first end 2 to the second 3.
  • each of the first 51 and fifth 55 longitudinal areas is narrowed towards its middle.
  • each longitudinal zone 51, 52, 53, 54, 55 passes successively through the first end zone 8, the first intermediate zone 15, the first retention zone 16, the second intermediate zone 17, the second retention zone 18, the third intermediate zone 19, and finally the second end zone 10.
  • the longitudinal zones 51 to 55 have different fiber concentrations for at least one of the reinforcements 22, 24.
  • the fiber concentrations vary transversely from the first lateral edge 4 to the second lateral edge 5.
  • the first 51, third 53, and fifth 55 longitudinal zones present concentrations rather high, that is to say between 500 and 1500 grams per square meter.
  • a value close to 800 grams of fiberglass per square meter has given excellent results.
  • the distance or not between two warp locks 40 that is to say wicks oriented along the longitudinal direction Lo, is identified by the reference P1. It will be seen later that this corresponds to a gap between wicks 40, or not, reduced.
  • the second 52 and fourth 54 longitudinal zones have moderate fiber concentrations, in any case reduced compared to other areas 51, 53, 55, that is to say between 100 and 500 grams per square meter. A value close to 500 grams of fiberglass per square meter has given excellent results.
  • the distance between two chain locks 40 is indicated by the reference P2. This gap, or not, is higher than P1.
  • the concentration of the weft fibers 41 is substantially constant longitudinally. This means that from the first end 2 to the second 3 the distance P3, or not, between the bits 41, which are oriented in the transverse direction Wo, is substantially constant. In fact the weft locks 41 serve as a regular seat for the first reinforcement 22.
  • the concentration of the weft fibers 41 is moderate, for example between 100 and 500 grams per square meter. A value of the order of 200 grams of fiberglass per square meter has given excellent results.
  • first reinforcement 22 of the board 1 has variations in fiber concentrations only in the transverse direction Wo.
  • the first 51 and fifth 55 longitudinal zones are reinforced, which allows the board 1 to be stiffer at the side edges 4, 5.
  • the fore and aft sockets, with toes or heels, are more free.
  • the third longitudinal zone is also reinforced. This promotes the attachment to the board, for example using screws, retaining devices of the user's feet.
  • the second 52 and fourth longitudinal zones are more flexible and lighter. It follows that the board can flex transversely in driving along a longitudinal axis, and also that the board is lighter. Indeed, the reduction of fiber concentration is synonymous with weight gain.
  • the board 1 according to the first embodiment is well suited to a freeride type of driving, that is to say with movements on hard or powdery snow, with straight or curved paths.
  • This board 1 is relatively rigid in flexion along a transverse axis, and in torsion along a longitudinal axis.
  • first 51, third 53 and fifth 55 longitudinal regions each have the same fiber concentration. It is also expected that the second 52 and fourth 54 longitudinal zones each have the same fiber concentration. In addition, the widths of the first 51 and fifth 55 longitudinal zones are identical. By analogy, the widths of the second 52 and fourth 54 longitudinal zones are identical. Finally the board 1 is symmetrical transversely along the central longitudinal axis Lo. This makes the behavior of the board homogeneous, especially when changing direction of slip.
  • first reinforcement 22 also applies to the second 24.
  • first reinforcement 22 has different areas for which the fiber concentrations are different
  • second reinforcement 24 has different areas for which the fiber concentrations are different
  • first 22 and the second reinforcement 29 have different areas for which the fiber concentrations are different.
  • the second embodiment is shown in Figures 8 to 11. For convenience, only the differences from the first form are highlighted. By corollary, the identical or similar elements are designated by the same references. In particular, there is the first end 2, the second end 3, the first lateral edge 4, the second lateral edge 5, the warp locks 40, and the weft locks 41.
  • the board 1 has successively a first 71, a second 72, and a third 73 longitudinal area. These areas 71, 72, 73 follow one another transversely. Each longitudinal zones 71 to 73 extend in the longitudinal direction Lo substantially from the first end 2 to the second 3.
  • Each of the first 71 and third 73 longitudinal zones is narrowed towards its middle.
  • the second zone 72 or central zone has a substantially constant width.
  • each longitudinal zone 71, 72, 73 passes successively through the first end zone 8, the first intermediate zone 15, the first retention zone 16, the second intermediate zone 17, the second retained zone 18, the third intermediate zone 19, and finally the second end zone 10.
  • the longitudinal zones 71 to 73 have various fiber concentrations at least for one of the reinforcements 22, 24.
  • the concentrations of the warp fibers 40 vary transversely from the first edge 4 to the second edge 5.
  • the first 71 and third 73 longitudinal zones have rather moderate concentrations, that is to say between 100 and 500 grams per square meter. A value close to 500 grams of fiberglass per square meter is suitable. In these areas 71, 73 the pitch P6 between two chain locks 40 is large enough.
  • the second longitudinal zone 72 has a higher fiber concentration, in any case greater than in the other zones 71, 73, that is to say between 500 and 1500 grams per square meter. A value close to 800 grams of fiberglass per square meter is suitable.
  • the pitch P7 between two chain locks 40 is smaller, especially compared to the pitch P6.
  • the concentration of the weft fibers 41 varies longitudinally. In other words, the pitch between the locks 41 is variable.
  • the board From the first end 2 to the second 3, the board successively has a first 81, a second 82, then a third 83 transverse areas.
  • the first transverse zone 81 includes the first end zone 8, the first intermediate zone 15, and the first retention zone 16.
  • the third transverse zone 83 includes the second end zone 10, the third intermediate zone. 19, and the second retaining zone 18.
  • the concentration of the fibers 41 is moderate, for example between 200 and 500 grams per square meter. A value close to 300 grams of fiberglass per square meter is suitable.
  • pitch P8 between two weft locks 41 is quite small compared to the pitch P9 of the second zone 82, as shown below.
  • This second zone 82 which includes the second intermediate zone 17, has a rather low concentration of weft fibers 41.
  • the concentration is between 50 and 200 grams per square meter.
  • a value close to 100 grams of fiberglass per square meter is suitable.
  • the pitch P9 between two wicks 41 is larger than the pitch P8 of the first 81 and third 83 zones. It also means that the concentration of transverse fibers 41 is low between the feet.
  • the first reinforcement 22 of the board 1 has variations in fiber concentrations in the longitudinal direction Lo and in the transverse direction Wo.
  • the second longitudinal zone 72 is reinforced, which gives the board 1 a good bending stiffness along a transverse axis.
  • the second transverse zone 82 is weakened, relative to the first 81 and third 83 zones, which gives the board 1 a good torsional flexibility along a longitudinal axis.
  • the board 1 according to the second embodiment is well suited to a freestyle type of driving, that is to say, in particular to perform figures or acrobatics.
  • first 71 and third longitudinal zones each have the same fiber concentration. It is also expected that the first 81 and third 83 transverse areas each have the same fiber concentration.
  • the board is symmetrical on the one hand transversely with respect to a central longitudinal axis, and on the other hand longitudinally with respect to a central transverse axis. As a result, the behavior of the board is homogeneous, especially during changes in direction of sliding.
  • the invention is made from materials and according to implementation techniques known to those skilled in the art.
  • asymmetrical concentrations can be provided.
  • a longitudinal zone located near one edge may be more or less reinforced than the other zone located near the other edge of the board.
  • the dimensions of the areas can be very different from each other.
  • the fiber concentrations of a reinforcement may vary only transversely, or only longitudinally, or transversely and longitudinally, or in any direction.

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  • Reinforced Plastic Materials (AREA)
EP07019600A 2006-11-10 2007-10-08 Snowboard oder Rollerboard mit unterschiedlichen Faserdichten Withdrawn EP1920800A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0609801A FR2908318A1 (fr) 2006-11-10 2006-11-10 Planche de glisse ou de roulage

Publications (1)

Publication Number Publication Date
EP1920800A1 true EP1920800A1 (de) 2008-05-14

Family

ID=38349536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07019600A Withdrawn EP1920800A1 (de) 2006-11-10 2007-10-08 Snowboard oder Rollerboard mit unterschiedlichen Faserdichten

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EP (1) EP1920800A1 (de)
FR (1) FR2908318A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2366035A1 (fr) * 1976-09-29 1978-04-28 Maschf Augsburg Nuernberg Ag Ski
WO1981000057A1 (fr) * 1979-07-05 1981-01-22 Hasegawa Chem Ind Planche a ski
FR2546413A1 (fr) * 1983-05-25 1984-11-30 Rohrmoser Alois Skifabrik Ski
FR2725910A3 (fr) * 1994-10-20 1996-04-26 Kaestle Ag Planche de surf des neiges et procede pour sa realisation
EP1693089A1 (de) * 2005-02-16 2006-08-23 Skis Rossignol Gleitbrett
FR2888126A1 (fr) * 2005-07-11 2007-01-12 Skis Rossignol Sa Sa Planche de glisse sur neige

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2366035A1 (fr) * 1976-09-29 1978-04-28 Maschf Augsburg Nuernberg Ag Ski
WO1981000057A1 (fr) * 1979-07-05 1981-01-22 Hasegawa Chem Ind Planche a ski
FR2546413A1 (fr) * 1983-05-25 1984-11-30 Rohrmoser Alois Skifabrik Ski
FR2725910A3 (fr) * 1994-10-20 1996-04-26 Kaestle Ag Planche de surf des neiges et procede pour sa realisation
EP1693089A1 (de) * 2005-02-16 2006-08-23 Skis Rossignol Gleitbrett
FR2888126A1 (fr) * 2005-07-11 2007-01-12 Skis Rossignol Sa Sa Planche de glisse sur neige

Also Published As

Publication number Publication date
FR2908318A1 (fr) 2008-05-16

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