EP1679098B1 - Gliding board, in particular ski - Google Patents

Abstract

In its middle section (2), a ski (1) has a retaining part (3) recessed against its upper side so as to have a structure with sliding motion for a linkage part in a linkage or supporting part for the linkage part, which can be fastened in specific positions in the ski's longitudinal direction. An independent claim is also included for a pressing mold with a mold upper and lower parts for pressing out a ski.

Description

The invention relates to a gliding board, in particular a ski, with a cover layer and a tread, which sliding board is provided in its central portion with at least one recessed over its receiving part, which has a base and guide portions, wherein between the base and the guide portions guides for inserting and slidingly arranging a binding, a binding part or a supporting part of the same are formed, which in certain positions in the longitudinal direction of the sliding board can be fixed, the outer cover layer is centered and thus at least the guide sections covered.

The invention further relates to a mold with a mold top and a mold bottom for pressing the from its constituents - a tread, a cover layer, optionally further reinforcing layers and optionally a single or multi-part core - constructed sliding board.

A ski or a snow sliding board of the type mentioned with recessed or recessed ski bind intake or guide rail assembly for binding units is from the WO 03/039687 A2 known. The guide rail assembly consisting of a base layer and guide rails integrally formed thereon is laminated onto the upper structural layer of the ski. The upper side of the ski is subsequently formed by a laminated top layer covering the guide rail arrangement, which is opened, in particular punched, to produce the required windows in the region of the guide rail arrangement. The guide rail assembly is therefore located above a zugbelasteten upper structural layer of the ski. The bending stiffness and torsional rigidity of the ski components remain unaffected by the guide rail assembly and are designed in a conventional manner. The limited to the central portion of the ski guide rail assembly increases the Skiquerschnitt and also increases the weight of the ski. During ski production slide parts are slidably inserted into the guide rail assembly, on which the ski binding parts are to be mounted in the finished ski.

Another, very similar constructed ski with a guide rail assembly for binding units is from the WO 02/49728 A1 known. Also in this embodiment, the guide rail assembly is above the structural layers of the ski, in particular above the core.

From the DE 79 05 336 U1 is a ski with fasteners for the attachment of ski binding parts known, wherein the fastening elements are formed on the top of the ski forming material layer and at each fastening element is provided with a dovetailed receiving grooves, which receives a shoe to be equipped with a corresponding profile.

The not pre-published DE 20 2004 001 356 U1 discloses a ski having a ski basic body and a binding receiving plate, lateral guide elements being arranged in the central region of the ski basic body into which the binding receiving plate is to be inserted, each forming a lateral guide groove for the binding receiving plate which can be positively inserted therebetween. In this way, the guide of the binding receiving plate is integrated into the ski basic body and is guided between the guide elements in correspondingly provided grooves, while the lateral outer surfaces of the ski are pulled upwards. The ski is built 5mm to 15mm thicker than conventional designs.

From the EP 0 758 557 A2 a ski is known, which has a bonding surface and at least one positioning element in the mounting area for the ski binding. The positioning elements are by spatially deformed parts of the Contact surface for the ski binding forming cover layer is formed and arranged on undersides of base plates, which form a guideway for the ski binding. By positioning it is possible to attach a suitably prepared base plate of the ski binding on the ski by gluing.

The FR 2 634 659 A relates to an interface element for placing a shoe on a ski. The interface element is arranged on the shoe sole and is provided with a spring-loaded locking element. In the Skigrundkörper a recess for receiving the intermediate element is formed, wherein the spring-loaded locking element engages within this recess.

From the EP 1 329 243 A1 A method is known for producing a ski in a mold having a mold top and a mold bottom, in which elements for arranging the ski binding or ski binding parts during construction of the ski are inserted into at least one of the reinforcement plies and into the outer cover layer. When the die is closed, at least the impact regions extending in the longitudinal direction of the ski between the elements and the surface film or covering layer are subjected to pressing pressure and the elements are thus integrated into the ski construction. Also in this embodiment, the guide rail assembly is located on the outside of the otherwise conventionally constructed ski.

The invention is based on the object, in a snow gliding board, in particular an alpine ski, the recessed towards its top receiving part for binding units, their support plates or other components to install an alternative, the ski section and the weight of the ski largely uninfluenced manner.

For the sliding board or the ski, a form is to be made available, which allows easy handling and optimal compression.

The object is solved according to the fact that the base of the receiving part is in a depth of at least 50% of the distance between the outside of the cover layer and the outside of the tread, so that the receiving part at least partially occupies that place in the sliding board, which otherwise from Core or occupied by core components.

According to the invention, therefore, the binding receiving part forms a functional part of the ski, which completely or at least partially replaces the core and thus can have a significant influence on the functions and properties of the ski, for example the bending stiffness and the torsional rigidity.

The receiving part at least partially occupies or replaces that place in the interior of the ski, which would be occupied by the core or core components. The invention thus relocates core functions on the receiving part, so that the sliding board or the ski can be made compact and weight-saving. The binding or ski binding or ski binding parts can be positioned in a simple manner in the receiving part, since the receiving part has below guide sections formed, in particular groove-like guides for inserting guide lugs of the binding, the binding member or the support member. Particularly simple is the insertion of the binding via one or more insertion openings, which can be formed such that the receiving part is made over part of its longitudinal extent free of guide portions.

In order to reduce finishing work on the finished ski as much as possible, it is advantageous if the outer cover layer has already been removed during the construction of the sliding board in such a way that it at least covers the guide sections, but does not project beyond it in the direction of the recess.

The invention admits various arrangements of the guides for the binding or the binding parts. Preferred is an embodiment in which the receiving part in cross-section is substantially C-shaped and the guides are arranged such that they are closed in the direction of the two ski sides. A further preferred alternative is to the receiving part with a central part to provided on which the guides are arranged so that they are closed in the direction of the ski center.

The receiving part can be incorporated in various ways during the manufacture of the sliding board. In a preferred possibility, the receiving part is at least partially integrated by curing during the pressing process of the sliding board foam. This type of integration can be particularly durable, especially if the receiving part with Anchoring parts is provided, which are held in the cured foam. In this variant, liquid foam material is therefore introduced at the beginning of the pressing process, which forms the usual foam core in the Gleitbrettteilen outside of the receiving part.

In a further variant of the invention, the receiving part can be inserted into a milled or cut-out recess of a foam part, foam block or the like and connected thereto, in particular adhesively bonded. In this variant, too, it is possible to form or form the core out of this foam part or foam block outside the binding mounting area of the sliding board or ski.

Also possible is an embodiment in which the receiving part with a plurality of remaining core components, for example, two side panels and a further arranged below the base of the receiving part further component made of wood or plastic, in particular glued, is.

In a further embodiment of the invention, the receiving part with the sliding board side panels or side panels, which are covered by the outer cover layer, be made in one piece.

It may also be advantageous for the handling of Gleitbrettteile during assembly, when the receiving part is made of several parts, so then in the finished sliding board several receiving parts, which preferably connect directly to each other, are included.

The dimensions of the components receiving part, in particular their material thicknesses, as well as the choice of material affect the bending and torsional stiffness of the sliding board. A desired influencing of various properties can thus take place, for example, by a variation of the material thicknesses of the receiving part in the longitudinal direction of the sliding board and / or in the transverse direction.

As already mentioned, the selection of the material for the sliding board properties can also be influenced accordingly. Next Plastics are for the receiving part especially composite materials or fiber-reinforced plastics in question.

In a receiving part, which is designed in cross-section substantially C-shaped, the pressing process can be carried out in a simple manner with a mold designed according to the invention, which has an upper mold part and a lower mold part. For this purpose, the upper mold part is provided with at least one projection which presses in the closed mold between the guide portions on the receiving part. The side walls of the projection can seal the front sides of the cover layer and the guide sections with the mold closed.

• Fig. 1 eine Schrägansicht des Mittelabschnittes einer Ausführungsform eines erfindungsgemäß ausgeführten Skis,
• Fig. 2 bis Fig. 5 Querschnitte durch unterschiedliche Ausführungsformen erfindungsgemäß ausgeführter Skier und
• Fig. 6 einen Teilquerschnitt durch Formteile einer Pressform während des Pressens eines gemäß Fig. 1 ausgeführten Skis.

Further features, advantages and details of the invention will be described in more detail with reference to the schematic drawing illustrating some embodiments. Show

• Fig. 1 3 is an oblique view of the middle section of an embodiment of a ski according to the invention,
• Fig. 2 to Fig. 5 Cross sections through different embodiments inventively executed skis and
• Fig. 6 a partial cross-section through moldings of a mold during the pressing of a according Fig. 1 running skis.

Here are the Figures 3 . 4 not part of the invention.

Common components of the variants of a ski 1 shown in all figures are a tread 8, a subsequent thereto, for example, a metal alloy existing lower flange 9, steel edges 10 and a cover layer 11, which is also referred to as an upper shell or cap and serves as impact protection and design support ,

In all embodiments, between the illustrated layers 8, 9 and 11 and the core, which will be discussed, additional layers, such as glass fiber reinforcement layers, metallic reinforcement layers, prepreg layers and the like.

Fig. 1 shows an oblique view of the central portion 2 of an embodiment of a ski 1, which in Fig. 2 is shown in cross section. In the middle section 2 of the ski 1, a ski binding (not shown in all drawing figures), which in particular consists of two ski binding parts, a toe piece and a heel holder, is arranged and fixed. The arrangement and the attachment of the ski binding or the ski binding parts takes place in and on a built-in ski 1 receiving part 3, which is a functional part of the ski 1 and properties of the ski 1, in particular the torsional stiffness and bending stiffness, at least influenced. At the in Fig. 1 As shown embodiment, the receiving part 3 is made in one piece, but it can be composed of several parts over its extension in the ski longitudinal direction. The receiving part 3 is preferably a plastic part produced in an injection molding process.

As Fig. 1 and Fig. 2 show, consists of a cross-sectionally substantially C-shaped receiving part 3 of a parallel to the tread 8 extending plate-shaped base 4, to which at their running in the ski longitudinal direction sides in the direction of the ski top side sections 5 connect, pointing at their upper ends in the direction of ski center pass over short guide sections 6. In this way, below the guide sections 6, two groove-like guides 7 extending in the longitudinal direction of the ski are formed, in which correspondingly formed guide projections of ski binding parts - base plates, mounting plates and support plates - can be slidably arranged. The guides 7 hold the ski binding or the ski binding parts in the vertical direction and in the transverse direction on the ski 1. The insertion of the ski binding or the ski binding part can by an in Fig. 1 Insertion opening 12 are shown, which is formed on the receiving part 3 by omitting the two guide portions 6 over a certain longitudinal extent, so that the ski binding or the ski binding part from the top of the ski into the receiving part 3 insertable and insertable. For fixing the ski binding parts, not shown, or the ski binding, not shown in the ski longitudinal direction, they can be used from the outside operable latching devices may be provided, which latching parts, gears, etc., which engage in corresponding, not shown Gegenverrastungen which may be formed on the receiving part 3, engage. It can also be provided to connect the ski binding parts used on each side of the opening 12 via a flexible metal band or the like and to connect this centrally between the two ski binding parts, for example in the region of the insertion opening 12, with the base 4, for example by screwing , The fixation of the ski binding or the ski binding parts in the ski longitudinal direction on the receiving part 3 or on the ski 1 is not the subject of the invention and therefore not shown.

The cover layer 11 is centered in the middle section 2 or in the extension region of the receiving part 3 and covers only the guide sections 6 or in the region of the insertion opening 12 the lateral sections 5. The opening in the cover layer 11 is already created during their production, the ski is therefore pressed with the recessed cover layer 11.

At the in Fig. 1 and Fig. 2 In the embodiment shown, the part 14 of the core remaining around the receiving part 4 consists of a plastic foam, which is introduced into the finished ski 1 and cures during the pressing process. The receiving part 3 is integrated in such a way by the thermosetting foam. The cured foam may form the core of the ski 1 outside of the middle section 2. In the region of the central portion 2, thus in that area where the receiving part 3 is introduced, the foam fills the cavity between the cover layer 11, the steel edges 10 and the lower flange 9 on the one hand and the receiving part 3 on the other. The receiving part 3 thus partially replaces the core and optionally further reinforcing layers, assumes its or their function at least in part and therefore also influences the bending stiffness and the torsional stiffness of the ski 1. The wall thickness of the receiving part 3 can over its longitudinal and / or transverse extent, Depending on the position in the ski, vary, for example, over the longitudinal extent of the ski to change the flexural rigidity and torsional stiffness.

On the receiving part 3 hook-shaped anchoring parts 3a are formed in cross-section, which may assume any other cross-sectional shapes, such as peg or drop-shaped, and may be provided with cuts, grooves and the like, to support anchoring of the receiving part 3 in the curing foam. The anchoring parts can also be elongate, running in the ski longitudinal direction approaches the receiving part 3.

Alternatively, for foaming can be provided to create a recess for inserting the receiving part 3 in an already foamed core component by appropriate milling and / or cutting and gluing the receiving part 3 in the foam block. In this case, no anchoring parts are required.

At the in Fig. 3 As shown, the receiving part 3 'is essentially analogous to the receiving part 3 of FIG Fig. 2 but without anchoring parts, and therefore has a base 4 ', sections 5' and guide sections 6 '. Below the base 4 'of the receiving part 3' is a residual core part 14a, for example made of wood, laterally separate side parts 14b are installed, which may consist of wood or plastic (foam). The connection of the parts 14a, 14b with the receiving part 3 'can be done by gluing, by pressing in the ski curing resin, by resin from prepregs or the like.

At the in Fig. 4 As shown, the receiving part 3 "is made in one piece with the side cheeks of the ski 1 and is covered directly by the cover layer 11, also in the region of the guide sections 6". Below the base 4 "of the receiving part 3" is a residual core part 14 "made of wood or plastic (foam).

Fig. 5 shows an embodiment in which the two groove-like guides 7 'are formed for the slidable arrangement of the ski binding or ski binding parts in a massively formed middle part 3 "' b of the receiving part 3 '" and have the ski center. The receiving part 3 '"has a base 4'" and lateral sections 5 "', the guide sections 6'" are formed on the middle part 3 "'b and point to the ski side edges Covering layer 11, the belt 9 and the receiving part 3 '"formed space can, as in the embodiment according to Fig. 1 , be filled with liquid in the pressing process of the ski curing foam or consist of residual core components made of wood or foam. Also in this embodiment, an insertion opening can allow insertion and insertion of the ski binding parts, wherein in the region of the insertion opening, the two guide portions 5 "'are omitted.

Fig. 6 shows a cross section through the ski 1 according to Fig. 2 , introduced into a mold, of which partial regions of the upper mold part 16 and the lower mold part 17 are shown. The upper mold part 16 is shaped in accordance with the outer contour of the ski and has a projection 16a which, when the mold is closed, ensures pressing of the cover layer 11 and the receiving part 3 as well as joining of the individual ski components with appropriate pressure application and supply of heat. In the region of the insertion opening, the projection of the upper mold part is made correspondingly wider.

It is advantageous if the end faces of the guide sections 6 and the cover layer 11 come into contact with the side surfaces of the projection 16a. Undercuts in these areas of the ski, which can disturb the contact, are therefore to be reduced. In the Fig. 5 shown embodiment can be pressed with a mold top without projection.

In the contact surface between the cover layer 11 and the guide portions 6 of the receiving part 3, a sealing compound can be introduced to prevent unwanted leakage of the still liquid foam.

Claims (14)

1. A sliding board, in particular a ski, having a cover layer (11) and a sliding coating (8), said sliding board being provided in its center section with at least one accommodating part (3, 3', 3", 3"'), which is arranged so as to be recessed as compared to its upper side and which encompasses a base (4, 4', 4", 4"') and guide sections (6, 6', 6", 6'"), wherein guides (7, 7") are formed between the base (4, 4', 4", 4'") and the guide sections (6, 6', 6", 6'") for inserting and arranging a binding allowing it to slide, a binding part or a support thereof, which can be fixed in certain positions in longitudinal direction of the sliding board, wherein the outer cover layer (11) is recessed in the center and at least covers the guide sections (6, 6', 6", 6") in such a manner,
   characterized in
   that the base (4, 4', 4", 4'") of the accommodating part (3, 3', 3", 3"') is located in an installation depth of at least 50% of the distance between the outer side of the cover layer (11) and the outer side of the sliding coating (8) so that the accommodating part (3, 3', 3", 3"') at least partly assumes the place in the sliding board, which is otherwise assumed by the core or by core parts.
2. The sliding board according to claim 1, characterized in that the cross-section of the accommodating part (3, 3', 3") is substantially C-shaped and that the guides (7) are arranged in such a manner that they are closed in the direction to the two ski sides.
3. The sliding board according to claim 1 or 2, characterized in that the accommodating part (3"') encompasses a center part (3'"b) on which the guides (7') are arranged in such a manner that they are closed in the direction to the center of the ski.
4. The sliding board according to one of claims 1 to 3, characterized in that the accommodating part (3) is at least partly integrated in the interior of the sliding board by means of foam, which hardens during the compression molding process of the sliding board.
5. The sliding board according to claim 4, characterized in that the accommodating part (3) encompasses fastening parts (3a), which are held in the hardened foam.
6. The sliding board according to one of claims 1 to 5, characterized that the accommodating part is inserted into a countersunk or cut recess of a foam part and is connected thereto, in particular by means of adhesion.
7. The sliding board according to one of claims 1 to 3, characterized in that the accommodating part (3') is connected to the residual core components (14'a, 14'b) made of wood and/or of plastic, in particular by means of adhesion.
8. The sliding board according to one of claims 1 to 3, characterized in that the accommodating part (3") is embodied in one piece with the side parts of the ski and the side walls of the ski, respectively, which are covered by the outer cover layer (11).
9. The sliding board according to one of claims 1 to 8, characterized in that the accommodating part (3, 3', 3", 3"') is free from guide sections (6, 6', 6", 6'") across a part of its longitudinal extension.
10. The sliding board according to one of claims 1 to 9, characterized in that a plurality of accommodating parts are included.
11. The sliding board according to one of claims 1 to 10, characterized in that the material cross section of the accommodating part varies in the longitudinal direction and/or lateral direction of the sliding board according to the desired flexural and torsional stiffness.
12. The sliding board according to one of claims 1 to 11, characterized in that the accommodating part (3, 3', 3", 3'") consists of a plastic, a fiber-reinforced plastic or a composite material.
13. A pressing mold having an upper mold part and a lower mold part for compression molding the sliding board according to one or a plurality of claims 1 to 12,
    characterized in
    that the upper mold part (16) is provided with at least one projection (16a), which exerts pressure onto the accommodating part (3) in response to a closed mold between the guide sections (6).
14. The pressing mold according to claim 13, characterized in that the side walls of the projection (16a) seal the front sides of the cover layer (11) and of the guide sections (6) in response to a closed mold.

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