EP1234603B1 - Manufacturing of a snowglider, reinforcement and a snowglider with such a reinforcement - Google Patents

Abstract

Board for gliding over snow (1) comprising a gliding sole plate (2) bordered by metal side edges (3), an upper protective and decorative layer (4), and a filler core (6), including, on at least one of its faces, the lower face and/or the upper face, at least one internal rigid reinforcement (5), wherein this internal rigid reinforcement has at least one laterally flush zone (9, 11) in the region of the heel of the board for gliding over snow so as to allow the centering of the median longitudinal axis of said reinforcement relative to the median longitudinal axis of the board for gliding over snow.

Description

The present invention relates to a method for producing a snow gliding board comprising an internal rigid reinforcement. The present invention also relates to an internal rigid reinforcement intended for a board for sliding on snow. The present invention finally relates to a snow sliding board comprising an internal rigid reinforcement.

State of the art

• à sélectionner un moule aux dimensions souhaitées pour la planche de glisse,
• à positionner une semelle de glisse dans ce moule,
• à border cette semelle de glisse par deux carres latérales métalliques,
• à positionner un renfort rigide au dessus de la semelle de glisse, et
• à positionner un premier renfort de type stratifié pré-imprégné par dessus ces premiers éléments précités déjà présents.

The traditional method for producing a board for gliding on snow, particularly for alpine skiing or surfing, as described for example in documents FR-2,678,543 and US-5,288,442, will comprise the following first steps which consist of:

• to select a mold with the desired dimensions for the gliding board,
• to position a gliding sole in this mold,
• to border this sole glide by two metal side edges,
• positioning a rigid reinforcement above the gliding sole, and
• positioning a first prepreg-type laminate reinforcement over these aforementioned first elements already present.

The disadvantage of these prior art lies in the fact that the rigid reinforcement can have a variable position relative to the rest of the elements, that is to say the gliding sole, the side edges and the first laminated reinforcement. In fact, the reinforcement rigid can be laterally offset from these same elements. More precisely, the internal rigid reinforcement will be off-center with respect to the median longitudinal axis of the snow-sliding board.

These centering defects lead to the obtaining of a ski having very poor and very variable mechanical and dimensional characteristics. During uses on the track, the behavior of the skis thus obtained will also be variable. These centering defects lead to overlaps reinforcements that cause deformations of the structures of the gliding board.
These centering defects lead to a lack of homogeneity in the manufacture of boards gliding and having consequences in their behavior on the snow.

Summary of the invention

A first problem posed consists in developing a method for making a board for gliding on snow comprising a particular step of laying a rigid reinforcement shaped to be able to be centered without any difficulty and without specific tools.
A second problem is to design a rigid reinforcement whose own configuration allows it to focus automatically relative to the median longitudinal axis of the gliding board.
A third problem posed is to constitute a snow sliding board having a longitudinally rigid rigid reinforcement.

A method for making a board for gliding on snow includes the following first steps, consisting in positioning a sliding base in a mold, to border this sole with two metal side edges, to position a first layer-like reinforcement pre-impregnated by above the gliding sole, and finally to position at least one internal rigid reinforcement.

According to a first aspect of the present invention, the method is characterized in that the one or more rigid internal reinforcements comprise at least one lateral protrusion positioned exclusively at the level of the heel zone, in order to center said or said rigid reinforcements internal with respect to the median longitudinal axis of the snow gliding board.

Finally, it is preferentially to a step of cutting or sanding the or growths or reinforcements rigid internal, so that the rigid reinforcements or internal flush without exceeding the side edge defining the songs of the snowboard on snow . The protrusion (s) of the internal rigid reinforcement (s) may also have a sufficient length, so as to abut against a shoulder present in the mold and protruding laterally from the edge of the mold defining the edges of the snow gliding board.

The internal rigid reinforcement advantageously comprises two protuberances. Preferably, the internal rigid reinforcement consists of a metal sheet whose thickness is between 0.2 mm and 1.2 mm. The internal rigid reinforcement may consist of a rigid laminate plate of fiberglass and / or carbon fiber and / or aramid fiber.

A board for gliding on snow comprises a gliding sole bordered by metal side edges, a top layer of protection and decoration and a filling core comprising on at least one of its faces, lower and / or upper, at least one reinforcement rigid internal.

According to a third aspect of the present invention, the snow gliding board is characterized in that the at least one rigid reinforcing member has at least one flush zone at the level of the heel area of the gliding board on snow, so that to allow the centering of the median longitudinal axis of said one or more internal rigid reinforcements relative to the median longitudinal axis of the snow gliding board.

In a more particularly interesting board, the area or zones of the rigid or internal stiffeners are flush laterally over a length of 5 mm to 30 mm. The Snowboarding board may comprise an internal rigid reinforcement having two flush lateral areas located on the right and left sides with respect to the median longitudinal axis of the snow board.

Description of the drawings

• la Figure 1 représente une vue en perspective d'une planche de glisse sur neige, au cours de sa fabrication ;
• la Figure 2 représente une vue du dessus de la planche de glisse sur neige positionnée dans un moule, en cours de fabrication ;
• la Figure 3 représente une vue partielle en coupe transversale selon le plan III - III de la Figure 2 ; et
• la Figure 4 représente une vue partielle en coupe transversale selon le plan IV - IV de la Figure 2.

The invention will be better understood and its various advantages and different characteristics will become more apparent in the following description of the nonlimiting exemplary embodiment, with reference to the appended schematic drawings, in which:

• Figure 1 shows a perspective view of a snow board on snow, during its manufacture;
• Figure 2 shows a top view of the snow sliding board positioned in a mold during manufacture;
• Figure 3 shows a partial cross-sectional view along the plane III-III of Figure 2; and
• Figure 4 shows a partial view in cross section along the plane IV - IV of Figure 2.

detailed description

A board for gliding on snow 1 successively comprises a gliding sole 2, bordered by metal side edges 3, an upper layer of protection and decoration 4, a filling core 6 having on at least one of its lower faces a internal rigid reinforcement 8. The gliding board also comprises a reinforcement 5, for example of pre-impregnated type, and positioned above the gliding base 2. The rigid reinforcement 8 is generally placed on top of this reinforcement of laminated type 5.

According to the invention, the rigid reinforcement 8 will comprise two protuberances 9 and 11 positioned laterally on either side of the median longitudinal axis A of the gliding board 1. These two protuberances 9 and 11 are furthermore placed at the of the heel area 12 of the gliding board 1.

When the board is finished, the two protuberances or protruding areas 9 and 11 come flush laterally at the heel area 12 of the snow gliding board. A flush length at the edges varies in practice between 5 mm and 30 mm.

During the realization of the snow board, the different elements are first set up. A mold 13 is chosen according to the dimensions of the desired gliding board. The sole 2 is placed at the bottom of the mold 13. Next, this sole is bordered by two metal side edges 3. A first reinforcement 5 of the prepreg laminated type, is placed over the gliding sole 2. Then, the rigid reinforcement 8 comprising these two protuberances 9 and 11 is wedged at the bottom of the mold 13.

Thanks to the two protuberances 9 and 11, the rigid reinforcement 8 will be perfectly positioned at the bottom of the mold 13. The median longitudinal axis of the rigid reinforcement 8 will be confused with the median longitudinal axis A of the snow sliding board.

To obtain this perfect positioning of the rigid reinforcement 8, the two protuberances 9 and 11 will come into abutment in two zones 14 and 16 respectively against the wall 17 of the mold 13. These two contact zones 14 and 16 make the rigid reinforcement 8 can not move laterally inside the mold 13.

It is also possible to provide two protuberances 18 and 19 which extend well beyond the lateral edge 17 of the mold 13 (shown in dashed lines in FIG. 1). These two protuberances 18 and 19 projecting laterally with respect to the edge of the mold 17, will abut against a shoulder (not shown) which will be present inside the mold 13 and which will be very set back with respect to the lateral edge 17 of the mold 13.

The presence of these two very protruding protrusions 18 and 19, that we will proceed to a final step of cutting or sanding these two projections 18 and 19. This provides a rigid reinforcement 8 with just two side zones flush with the side edge defining the fields 3 of the board 1.

The rigid metal reinforcement can be made of different types of materials. For example, a metal sheet whose thickness is between 0.2 mm and 1.2 mm can be used. A rigid laminate plate made of glass fibers and / or carbon fibers and / or aramid fibers is a particularly interesting alternative.

The present invention is not limited to the embodiments described and illustrated. Many modifications can be made, without departing from the scope defined by the scope of the set of claims.

For example, the gliding board may comprise several rigid reinforcements 8. each comprising the centering protrusions 9, 11, 18 and 19. The number of these outgrowths or projections 9, 11, 18 and 19 may be variable. These protuberances and projections 9, 11, 18 and 19 may have different shapes.

Claims (9)

1. Process for producing a board for gliding over snow (1), which comprises, in particular, the following initial stages which consist in:

   - positioning a gliding sole plate (2) in a mold (13);

   - bordering this sole plate (2) with two metal side edges (3);

   - positioning a first reinforcement of preimpregnated laminated type (5) over the gliding sole plate (2); and

   - finally positioning at least one internal rigid reinforcement (8),

   
   characterized in that the internal rigid reinforcement or reinforcements (8) comprise at least one lateral protuberance (9, 11, 18, 19) located exclusively at the region of the heel (12), so as to center said internal rigid reinforcement or reinforcements (8) relative to the median longitudinal axis (A) of the board for gliding over snow (1).
2. Process according to claim 1, characterized in that there is a final stage of cutting or of rubbing down the protuberance or protuberances (9, 11) of the internal rigid reinforcement or reinforcements (8), so that the internal rigid reinforcement or reinforcements (8) are flush without extending beyond the side rim defining the sides of the board for gliding over snow (1).
3. Process according to claim 1 or 2, characterized in that the lateral protuberance or protuberances (18, 19) of the internal rigid reinforcement or reinforcements (8) have a length which is sufficient to abut against a shoulder present in the mold and extending laterally beyond the rim of the mold defining the sides of the board for gliding over snow (1).
4. Process according to any one of the preceding claims, characterized in that the internal rigid reinforcement or reinforcements (8) comprise two lateral protuberances (9, 11).
5. Process according to any one of the preceding claims, characterized in that the internal rigid reinforcement or reinforcements (8) consist of a metal sheet with a thickness of between 0.2 mm and 1.2 mm.
6. Process according to any one of the preceding claims, characterized in that the internal rigid reinforcement or reinforcements (8) consist of a rigid laminated plate of fiberglass and/or carbon fiber and/or aramide fiber.
7. Board for gliding over snow which comprises a gliding sole plate (2) bordered by metal side edges (3), an upper protective and decorative layer (4), and a filler core (6), including, over at least one of its faces, the lower and/or the upper face, at least one internal rigid reinforcement (8), characterized in that the internal rigid reinforcement or reinforcements (8) have at least one laterally flush zone (9, 11) exclusively at the region of the heel (12) of the board for gliding over snow (1), so as to allow centering of the median longitudinal axis of said internal rigid reinforcement or reinforcements (8) relative to the median longitudinal axis (A) of the board for gliding over snow (1).
8. Board for gliding over snow according to claim 7, characterized in that the zone or zones of the internal rigid reinforcement or reinforcements (8) are laterally flush over a length of from 5 mm to 30 mm.
9. Board for gliding over snow according to claim 6 or 7, characterized in that it comprises an internal rigid reinforcement (8) which has two flush side zones (9, 11) located on the right and on the left relative to the median longitudinal axis (A) of the board for gliding over snow (1).

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