EP1234603A1 - 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 board for gliding on snow including an internal rigid reinforcement.

The present invention also relates to an internal rigid reinforcement intended for a snowboard.

The present invention finally relates to a board for gliding on snow 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 premier renfort de type stratifié pré-imprégné par dessus la semelle de glisse, et
• à positionner un renfort rigide au dessus de ces premiers éléments précités déjà présents.

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

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

The disadvantage of these prior techniques lies in the fact that the reinforcement rigid can have a variable position compared to the rest of the elements, that is to say the gliding sole, side edges and first laminate reinforcement. In fact, the reinforcement rigid can be laterally offset from these same elements. More precisely, the internal rigid reinforcement will be offset from the median longitudinal axis of the snowboard.

These centering defects lead to obtaining a ski having very poor and highly variable mechanical and dimensional characteristics. During the use on the piste, the behavior of the skis thus obtained will also be variable. These centering faults lead to overlapping of the reinforcements which cause deformation of the gliding board structures.

These centering defects lead to a lack of homogeneity in the manufacture of boards and having consequences in their behavior on snow.

Summary of the invention

A first problem posed consists in developing a method for carrying out a Snow gliding board including a specific step of installing a reinforcement rigid shaped so that it can be centered without any difficulty and without tools specific.

A second problem posed is to design a rigid reinforcement with its own configuration allows it to center automatically with respect to the axis median longitudinal of the board.

A third problem posed is to constitute a board for gliding on snow having a rigid reinforcement longitudinally centered.

According to a first aspect of the present invention, a method for snowboarding includes the first steps following, consisting in positioning a gliding sole in a mold, to border this sole by two lateral metal edges, to position a first type reinforcement laminate pre-impregnated over the gliding sole, and finally position at least one internal rigid reinforcement comprising at least one lateral projection located at the heel area, so as to center said internal rigid reinforcement (s) relative to the median longitudinal axis of the snowboard.

Finally, we preferentially carry out a step of cutting or sanding the or protuberances of the internal rigid reinforcement (s), so that the reinforcement (s) rigid internals are flush without exceeding the lateral edge defining the edges of the snowboard. The growth (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 laterally projecting beyond the edge of the mold defining the edges of the snowboard.

According to a second aspect of the present invention, a rigid reinforcement internal for use in a snow gliding board is characterized in that that it comprises at least one lateral projection positioned at the level of the zone of heel.

The internal rigid reinforcement advantageously comprises two protuberances. Of 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 of fiberglass and / or carbon fiber and / or fiber aramid.

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

According to a third aspect of the present invention, the gliding board on snow is characterized in that the internal rigid reinforcement (s) have at the minus an area flush laterally at the heel area of the board slides on snow, in order to allow the centering of the median longitudinal axis of said or said internal rigid reinforcements with respect to the median longitudinal axis of the plank slides on snow.

In a more particularly interesting plate, the zone or zones of the rigid internal reinforcements are flush laterally over a length of 5 mm to 30 mm. The snow gliding board may include an internal rigid reinforcement having two flush side zones located on the right and left side relative to the axis median longitudinal of the snowboard.

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 clearly understood and its various advantages and different characteristics will become more apparent from the following description of the nonlimiting exemplary embodiment, with reference to the attached schematic drawings, in which:

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

detailed description

A snow gliding board 1 successively comprises a gliding sole 2, bordered by metal side edges 3, an upper protective layer and decoration 4, a filling core 6 comprising on at least one of its faces lower internal rigid reinforcement 8. The gliding board further comprises also a reinforcement 5, for example of the prepreg type, and positioned above the gliding sole 2. The rigid reinforcement 8 is generally placed over this reinforcement laminate 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 also placed at the level of the heel area 12 of the gliding board 1.

When the board is finished, the two outgrowths or outgrowth zones 9 and 11 are flush laterally at the heel area 12 of the board slides on snow. A flush length at the edges varies in practice between 5 mm and 30 mm.

When making the snow gliding board, the different elements are first of all set up. A mold 13 is chosen according to the dimensions of the gliding board desired. The sole 2 is placed at the bottom of the mold 13. Next, this sole is bordered by two lateral metal edges 3. A first reinforcement 5 of the type pre-impregnated laminate, is placed over the gliding sole 2. Then the reinforcement rigid 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 longitudinal central axis of the rigid reinforcement 8 will confuse with the median longitudinal axis A of the snow gliding 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 mean that the rigid reinforcement 8 cannot move laterally inside the mold 13.

One can also provide two outgrowths 18 and 19 which greatly exceed the lateral edge 17 of the mold 13 (shown in dotted lines in Figure 1). These two protuberances 18 and 19 projecting laterally from the edge of the mold 17, will come into abutment against a shoulder (not shown) which will be present inside of the mold 13 and which will be very much set back relative to the lateral edge 17 of the mold 13.

The presence of these two very protruding outgrowths 18 and 19, makes that one proceed to a final step of cutting or sanding these two projections 18 and 19. This makes it possible to obtain a rigid reinforcement 8 with just two flush lateral zones not not exceeding the lateral edge defining the fields 3 of the board 1.

The rigid metallic reinforcement can be made of different types of material. Through example, a metal sheet whose thickness is between 0.2 mm and 1.2 mm can be used. A rigid laminate 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 leaving the framework defined by the scope of the set of claims.

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

Claims (10)

Method for making a board for gliding on snow (1), characterized in that it comprises in particular the following first steps, consisting in: positioning a sliding sole (2) in a mold (13); border this sole (2) by two lateral metal edges (3); position a first reinforcement of the prepreg laminate type (5) over the gliding sole (2); and finally positioning at least one internal rigid reinforcement (8) comprising at least one lateral protuberance (9, 11) located at the heel area (12), in order to center said internal rigid reinforcement (s) (8) relative to the 'median longitudinal axis (A) of the snow gliding board (1). Method according to claim 1, characterized in that one proceeds in the end to a step of cutting or sanding the protuberance (s) (9, 11) of the internal rigid reinforcement (s) (8), so that the reinforcement (s) internal rigid (8) are flush without exceeding the lateral edge defining the edges of the snow gliding board (1). Method according to claim 1 or 2, characterized in that the protuberance (s) (18, 19) of the internal rigid reinforcement (s) have a sufficient length, so as to come into abutment against a shoulder present in the mold and protruding laterally the edge of the mold defining the edges of the snow gliding board (1). Rigid reinforcement (8), intended for use in a snow gliding board (1), characterized in that it comprises at least one lateral protuberance (9, 11, 18, 19) positioned at the level of the heel zone (12). Reinforcement according to claim 4, characterized in that it comprises two protuberances (9, 11). Reinforcement according to claim 4 or 5, characterized in that it consists of a metal sheet whose thickness is between 0.2 mm and 1.2 mm. Reinforcement according to one of claims 4 or 5, characterized in that it consists of a rigid laminate of glass fiber and / or carbon fiber and / or aramid fiber. Snow gliding board comprising a gliding sole (2) bordered by metal lateral edges (3), an upper protective and decorative layer (4), and a filling core (6) comprising on at least one of its faces, lower and / or upper, at least one internal rigid reinforcement (8), characterized in that the internal rigid reinforcement (s) (8) have at least one flush zone (9, 11) laterally at the heel zone (12) of the snow gliding board (1), in order to allow the centering of the median longitudinal axis of said internal rigid reinforcement (s) (8) relative to the median longitudinal axis (A) of the gliding board on snow (1). Snow gliding board according to claim 8, characterized in that the zone (s) of the internal rigid reinforcement (s) (8) are flush laterally over a length of 5 mm to 30 mm. Snow gliding board according to claim 8 or 9, characterized in that it comprises an internal rigid reinforcement (8) having two flush lateral zones (9, 11) situated on the right side and on the left side with respect to the median longitudinal axis (A) of the snow gliding board (1).

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