Ski and method for manufacturing a ski

Abstract

The application relates to a ski and to a method for manufacturing a ski. The ski comprises at least a ski body that comprises an upper part of the ski and a base part of the ski, and at least the upper part of the ski has been arranged to be at least partly curved, such that the curved shape is directed upward and a hollow space is provided inside the ski body between the upper part and the base part of the ski.

Description

FIELD

[0001] The application relates to a ski as defined in claim 1 and to a method for manufacturing a ski as defined in claim 7.BACKGROUND

[0002] Different types of skis and methods for manufacturing skis are known in the prior art. It is known to manufacture a ski body and arrange surface and base materials as desired in connection with the body.PURPOSE

[0003] The purpose of the invention is to disclose a new type of ski. Further, the purpose of the invention is to disclose a novel method for manufacturing a ski. Further, the purpose of the invention is to provide in a simple manner a lightweight ski suitable for many uses.SUMMARY

[0004] The ski and the method according to the invention are characterized by what has been presented in the claims.

[0005] The ski comprises at least a ski body that comprises an upper part of the ski and a base part of the ski, and at least the upper part of the ski has been arranged to be at least partly curved and a hollow space has been arranged inside the ski body between the upper part and the base part of the ski.

[0006] In the method for manufacturing a ski, a ski body is formed, which ski body comprises an upper part of the ski and a base part of the ski, by connecting the base part and the upper part of the ski to each other, and at least the upper part of the ski is arranged to be at least partly curved and a hollow space is arranged inside the ski body between the upper part and the base part of the ski.DETAILED DESCRIPTION

[0007] The ski comprises at least a ski body that comprises an upper part of the ski and a base part of the ski, and at least the upper part of the ski has been arranged to be at least partly curved, such that the curved shape is directed upward, e.g. from the basic plane of the upper surface of the ski, and a hollow space is provided inside the ski body between the upper part and the base part of the ski. Preferably, the upper part of the ski is arranged to be curved in a longitudinal direction of the ski.

[0008] In the method for manufacturing a ski, a ski body is formed, which ski body comprises an upper part of the ski and a base part of the ski, by connecting the base part and the upper part of the ski to each other, and at least the upper part of the ski is arranged to be at least partly curved, such that the curved shape is directed upward, e.g. from the basic plane of the upper surface of the ski, and a hollow space is provided inside the ski body between the upper part and the base part of the ski.

[0009] In this context, the ski refers to any ski, ski blank or corresponding type of sports or recreational equipment, as well as to a runner of an instrument or equipment moving on snow, or the like. The ski comprises a ski body having an upper surface and a lower surface. The ski body has been formed at least from an upper part of the ski comprising the upper surface, and a base part of the ski comprising the lower surface. The upper and lower surfaces of the ski body may be provided with surface materials as desired. The upper part and / or the base part of the ski body comprises at least one material layer. The upper part and / or the base part of the ski body may be a layered structure, comprising more than one material layer. In one embodiment, the upper part and / or the base part of the ski have / has been formed from a material that may be single-layered or a layered structure. In one embodiment, the upper part and / or the base part of the ski body are / is formed by attaching at least one additional layer, e.g. stiffener laminate layer or reinforcement layer, to a surface, either to an upper or a lower surface, of a core material layer. In one embodiment, the layers may be attached to each other, e.g. by gluing and / or hot-pressing, to form the upper part and the base part of the ski. The gluing may be done with any suitable glue.

[0010] In one embodiment, the ski body or at least the upper and / or the base part of the ski is / are formed from a raw material selected from a group consisting of carbon fibre, fiberglass, fibre composite material, fibre-plastic composite material, plastic material and some combination thereof. In one embodiment, the ski body or at least the upper and / or the base part of the ski is / are formed from a raw material selected from a group consisting of carbon fibre, fiberglass, fibre composite material, fibre-plastic composite material, and combinations thereof. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from carbon fibre. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from fiberglass. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from fibre composite material. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from fibre-plastic composite material. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from plastic material. The upper part and the base part of the ski may be formed from the same raw material or alternatively different raw materials.

[0011] Preferably, the upper part of the ski includes at least a part forming the upper surface of the ski. The upper part is preferably open from a lower side thereof. In one embodiment, the upper part may be a three-dimensional part that, however, is preferably open from a lower side thereof. In one embodiment, the upper part of the ski comprises an upper surface and edges. Preferably, the upper surface and the edges form a unitary object, i.e. the upper part of the ski. Preferably, the edges form the sides of the ski. In one embodiment, the edges are part of a profile or profile material forming the upper part. In one embodiment, the edges have been bent to form the sides of the ski.

[0012] In one embodiment, the upper part and / or the base part of the ski have / has been formed from a profile material. In one embodiment, the upper part and / or the base part of the ski are / is formed from a profile material that may have a desired cross direction profile. The upper part or the base part of the ski may be formed from any kind of profile material having a desired profile shape, e.g. cross direction profile. In one embodiment, the upper part of the ski is formed from a U-profile material. In one embodiment, the profile material is bent to provide a curved shape in a longitudinal direction of the ski. In one embodiment, the profile material has been formed by means of pultrusion or by means of extrusion. Alternatively, the profile material may have been formed by any suitable method.

[0013] In one embodiment, the upper part and / or the base part of the ski are / is formed by means of a mould. In one embodiment, the upper part and / or the base part of the ski are / is formed by means of pressing. In one embodiment, the upper part and / or the base part of the ski are / is formed by means of a mould and pressing. In one embodiment, the upper part and / or the base part of the ski are / is formed by means of pressing and heat, e.g. by means of extrusion. In one embodiment, the upper part and / or the base part of the ski are / is formed by means of pultrusion. In one embodiment, the upper part and / or the base part of the ski are / is formed by 3D printing. Preferably, when forming the upper part and / or the base part of the ski by means of a mould, pressing and / or 3D printing, a tip and / or a tail of the ski may be shaped already in connection with manufacture.

[0014] Preferably, the curved shape is arranged to the ski, in a desired part thereof, in a longitudinal direction of the ski. In one embodiment, the curved shape has been arranged at least in a middle part of the ski body in a longitudinal direction of the ski. In one embodiment, the curved shape has been arranged substantially along the full length of the ski.

[0015] In one embodiment, the upper part and the base part of the ski are connected to each other to form the ski body. In one embodiment, the upper part and the base part of the ski are connected to each other by gluing. The gluing may be done using any glue suitable for the purpose. In one embodiment, the upper part and the base part of the ski are connected to each other by gluing and / or pressing, e.g. by a ski press. In one embodiment, the connecting is done by hot-pressing. In one embodiment, connection means are provided at the upper part and / or the base part of the ski for connecting the base part of the ski to the upper part or for facilitating the connection. In one embodiment, connection means are provided at the base part of the ski for connecting the base part of the ski to the upper part of the ski. In one embodiment, connection means are provided at the base part of the ski and counterparts are provided at the upper part of the ski for connecting the base part of the ski to the upper part of the ski. In one embodiment, connection means are provided at the upper part of the ski and counterparts are provided at the base part of the ski for connecting the upper part of the ski to the base part of the ski. In one embodiment, the base part of the ski or the material, e.g. profile material, forming the base part is provided with grooves guiding the connection between the upper and the base part of the ski. In one embodiment, the upper part and the base part of the ski are connected to each other using the connection means and, in addition, by gluing and / or pressing. Alternatively, the upper part and the base part may be connected to each other by any suitable means. In one embodiment, the upper part and the base part of the ski may be connected to each other in a step of manufacture of the upper part and the base part.

[0016] In one embodiment, the hollow space inside the ski body has been provided with at least one additional reinforcement, sensor, filler, adjusting mechanism, or some combination thereof. In one embodiment, the hollow space inside the ski body has been provided with additional reinforcements, e.g. in a vertical and / or horizontal position. In one embodiment, the hollow space inside the ski body has been provided with at least one or more sensors, preferably for collecting information, e.g. about the functionality of the ski. In one embodiment, the hollow space inside the ski body has been provided with a filler, e.g. gas. In one embodiment, the hollow space inside the ski body has been provided with helium gas to increase the lightness of the ski. In one embodiment, the hollow space inside the ski body has been provided with at least one or more adjusting mechanisms for adjusting the ski or its properties, e.g. during use, such as during skiing.

[0017] In one embodiment, the ski body may be shaped to a desired shape. In one embodiment, a tip and / or a tail of the ski may be shaped. The shaping may be done for example by milling, grinding or other suitable manner. In one embodiment, a tip and / or a tail of the ski are / is finished. The finishing may be done using any suitable method and device. In one embodiment, the ski body is provided with tip and / or tail reinforcements of the ski.

[0018] In one embodiment, an upper surface of the upper part of the ski may be provided with a desired surface pattern, e.g. during the manufacture or after the manufacture of the upper part. In one embodiment, a surface material is attached to the upper surface of the upper part of the ski. In one embodiment, the surface material is attached by gluing to the upper part of the ski. In one embodiment, attaching the surface material is done by applying glue at least to the upper surface of the upper part of the ski and optionally also to the edges, and by gluing at least one surface material layer to the upper part of the ski. The glue to be applied to the upper surface of the upper part and / or to the edges of the ski may be any glue suitable for the purpose. The glue may be applied by any suitable device, such as a glue applying device. The surface material may be patterned as desired, and / or it have any desired graphic appearance or colours. Alternatively, the upper surface of the upper part of the ski may be provided with a desired surface pattern by any suitable patterning method.

[0019] In one embodiment, a base of the base part of the ski is provided with a base material, e.g. base material that facilitates sliding. In one embodiment, a base of the base part of the ski has been provided with a sliding base. In one embodiment, the base material is attached by gluing to a lower surface of the base part of the ski. The glue used may be any glue suitable for the purpose. In one embodiment, the sliding base is provided at the base part of the ski by gluing or other suitable attaching method.

[0020] In one embodiment, the ski body may be finished, e.g. together with the surface and / or the base material, by guiding it to pass through pressing, e.g. press rolls, to form a pressed ski product.

[0021] The ski according to the invention has considerable advantages when compared to the known skis. Due to the invention, the total weight of the ski may be reduced to a considerable degree when compared to the known skis. A hollow space, e.g. an air space, may be arranged inside the ski easily and in a simple manner. Due to the invention, lightweight skis are provided for users.

[0022] The skis according to the invention may be easily manufactured using existing equipment. In addition, the invention may be used to quickly and easily form desired types if skis. In addition, the invention enables serial production of lightweight skis. The method may be easily modified according to the intended use or application.

[0023] The invention may be used to form a suitable ski for any purpose, e.g. cross-country ski, backcountry ski, other ski or a corresponding ski product. The ski may be easily modified according to the intended use or application.LIST OF FIGURES

[0024] Fig. 1 illustrates parts of one ski according to the invention.EXAMPLES

[0025] The invention will now be described with detailed examples of an embodiment, referring to the accompanying figure.

[0026] The ski comprises a ski body that comprises an upper part of the ski and a base part of the ski. The upper part of the ski has been arranged to be curved in a longitudinal direction of the ski, such that the curved shape is directed upward from the basic plane of the ski, such as the ground plane. The base part of the ski has not been arranged to be in the same way curved, although the base part may be provided with slight curvature, if desired. Due to the curved shape of the upper part, a hollow space is provided inside the ski body between the upper part and the base part of the ski. The upper part and the base part of the ski are connected to each other to form the ski body, e.g. by gluing and / or pressing, in one embodiment using a press. The base part and / or the upper part of the ski may comprise connection means to facilitate the connecting of the base part and the upper part to each other.

[0027] According to the example, the upper part of the ski has been formed from a U-shaped profile material, e.g. a U-shaped composite profile. The profile material is shaped at least preliminarily into the shape of a ski and it is provided with a curved shape in a longitudinal direction of the ski. The base part of the ski is made from another composite profile that may comprise grooves guiding the connection between the upper and the base part. The upper part and the base part of the ski are glued and pressed together to form the ski body. The composite profiles may have been formed by a pultrusion method.

[0028] According to one embodiment, a sliding base is attached to the resulting ski, to a lower surface of the base part thereof. In one embodiment, the sliding base is attached by gluing to the lower surface of the base part of the ski.

[0029] According to one example, a tip and a tail of the ski may be shaped and / or finished in connection with the manufacture of the ski.

[0030] Fig. 1 illustrates an example of parts of the ski body, i.e. an upper part of the ski, a base part of the ski and a sliding base. The upper part of the ski (illustrated uppermost in the figure) comprises a curved shape in a longitudinal direction of the ski. The base part of the ski (illustrated in the middle in the figure) is connectable to the upper part of the ski, such that a hollow space is provided between the upper part and the base part. The sliding base (illustrated lowermost in the figure) is attachable to a lower surface of the base part of the ski, whereby the sliding capacity of the ski may be improved.

[0031] The ski according to the invention may be formed from various raw materials, and it is suitable for use in various applications. Further, the method for manufacturing a ski according to the invention is suitable for use in a variety of applications for manufacturing various types of skis from different raw materials.

[0032] The invention is not limited merely to the above examples, but many modifications are possible within the scope of the inventive idea defined by the claims.

Examples

examples

EXAMPLES

[0025]The invention will now be described with detailed examples of an embodiment, referring to the accompanying figure.

[0026]The ski comprises a ski body that comprises an upper part of the ski and a base part of the ski. The upper part of the ski has been arranged to be curved in a longitudinal direction of the ski, such that the curved shape is directed upward from the basic plane of the ski, such as the ground plane. The base part of the ski has not been arranged to be in the same way curved, although the base part may be provided with slight curvature, if desired. Due to the curved shape of the upper part, a hollow space is provided inside the ski body between the upper part and the base part of the ski. The upper part and the base part of the ski are connected to each other to form the ski body, e.g. by gluing and / or pressing, in one embodiment using a press. The base part and / or the upper part of the ski may comprise connection means to facilitate the connecting of th...

FIELD

[0001] The application relates to a ski as defined in claim 1 and to a method for manufacturing a ski as defined in claim 7.BACKGROUND

[0002] Different types of skis and methods for manufacturing skis are known in the prior art. It is known to manufacture a ski body and arrange surface and base materials as desired in connection with the body.PURPOSE

[0003] The purpose of the invention is to disclose a new type of ski. Further, the purpose of the invention is to disclose a novel method for manufacturing a ski. Further, the purpose of the invention is to provide in a simple manner a lightweight ski suitable for many uses.SUMMARY

[0004] The ski and the method according to the invention are characterized by what has been presented in the claims.

[0005] The ski comprises at least a ski body that comprises an upper part of the ski and a base part of the ski, and at least the upper part of the ski has been arranged to be at least partly curved and a hollow space has been arranged inside the ski body between the upper part and the base part of the ski.

[0006] In the method for manufacturing a ski, a ski body is formed, which ski body comprises an upper part of the ski and a base part of the ski, by connecting the base part and the upper part of the ski to each other, and at least the upper part of the ski is arranged to be at least partly curved and a hollow space is arranged inside the ski body between the upper part and the base part of the ski.DETAILED DESCRIPTION

[0007] The ski comprises at least a ski body that comprises an upper part of the ski and a base part of the ski, and at least the upper part of the ski has been arranged to be at least partly curved, such that the curved shape is directed upward, e.g. from the basic plane of the upper surface of the ski, and a hollow space is provided inside the ski body between the upper part and the base part of the ski. Preferably, the upper part of the ski is arranged to be curved in a longitudinal direction of the ski.

[0008] In the method for manufacturing a ski, a ski body is formed, which ski body comprises an upper part of the ski and a base part of the ski, by connecting the base part and the upper part of the ski to each other, and at least the upper part of the ski is arranged to be at least partly curved, such that the curved shape is directed upward, e.g. from the basic plane of the upper surface of the ski, and a hollow space is provided inside the ski body between the upper part and the base part of the ski.

[0009] In this context, the ski refers to any ski, ski blank or corresponding type of sports or recreational equipment, as well as to a runner of an instrument or equipment moving on snow, or the like. The ski comprises a ski body having an upper surface and a lower surface. The ski body has been formed at least from an upper part of the ski comprising the upper surface, and a base part of the ski comprising the lower surface. The upper and lower surfaces of the ski body may be provided with surface materials as desired. The upper part and / or the base part of the ski body comprises at least one material layer. The upper part and / or the base part of the ski body may be a layered structure, comprising more than one material layer. In one embodiment, the upper part and / or the base part of the ski have / has been formed from a material that may be single-layered or a layered structure. In one embodiment, the upper part and / or the base part of the ski body are / is formed by attaching at least one additional layer, e.g. stiffener laminate layer or reinforcement layer, to a surface, either to an upper or a lower surface, of a core material layer. In one embodiment, the layers may be attached to each other, e.g. by gluing and / or hot-pressing, to form the upper part and the base part of the ski. The gluing may be done with any suitable glue.

[0010] In one embodiment, the ski body or at least the upper and / or the base part of the ski is / are formed from a raw material selected from a group consisting of carbon fibre, fiberglass, fibre composite material, fibre-plastic composite material, plastic material and some combination thereof. In one embodiment, the ski body or at least the upper and / or the base part of the ski is / are formed from a raw material selected from a group consisting of carbon fibre, fiberglass, fibre composite material, fibre-plastic composite material, and combinations thereof. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from carbon fibre. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from fiberglass. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from fibre composite material. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from fibre-plastic composite material. In one embodiment, the ski body or at least the upper and / or the base part of the ski has / have been formed from plastic material. The upper part and the base part of the ski may be formed from the same raw material or alternatively different raw materials.

[0011] Preferably, the upper part of the ski includes at least a part forming the upper surface of the ski. The upper part is preferably open from a lower side thereof. In one embodiment, the upper part may be a three-dimensional part that, however, is preferably open from a lower side thereof. In one embodiment, the upper part of the ski comprises an upper surface and edges. Preferably, the upper surface and the edges form a unitary object, i.e. the upper part of the ski. Preferably, the edges form the sides of the ski. In one embodiment, the edges are part of a profile or profile material forming the upper part. In one embodiment, the edges have been bent to form the sides of the ski.

[0012] In one embodiment, the upper part and / or the base part of the ski have / has been formed from a profile material. In one embodiment, the upper part and / or the base part of the ski are / is formed from a profile material that may have a desired cross direction profile. The upper part or the base part of the ski may be formed from any kind of profile material having a desired profile shape, e.g. cross direction profile. In one embodiment, the upper part of the ski is formed from a U-profile material. In one embodiment, the profile material is bent to provide a curved shape in a longitudinal direction of the ski. In one embodiment, the profile material has been formed by means of pultrusion or by means of extrusion. Alternatively, the profile material may have been formed by any suitable method.

[0013] In one embodiment, the upper part and / or the base part of the ski are / is formed by means of a mould. In one embodiment, the upper part and / or the base part of the ski are / is formed by means of pressing. In one embodiment, the upper part and / or the base part of the ski are / is formed by means of a mould and pressing. In one embodiment, the upper part and / or the base part of the ski are / is formed by means of pressing and heat, e.g. by means of extrusion. In one embodiment, the upper part and / or the base part of the ski are / is formed by means of pultrusion. In one embodiment, the upper part and / or the base part of the ski are / is formed by 3D printing. Preferably, when forming the upper part and / or the base part of the ski by means of a mould, pressing and / or 3D printing, a tip and / or a tail of the ski may be shaped already in connection with manufacture.

[0014] Preferably, the curved shape is arranged to the ski, in a desired part thereof, in a longitudinal direction of the ski. In one embodiment, the curved shape has been arranged at least in a middle part of the ski body in a longitudinal direction of the ski. In one embodiment, the curved shape has been arranged substantially along the full length of the ski.

[0015] In one embodiment, the upper part and the base part of the ski are connected to each other to form the ski body. In one embodiment, the upper part and the base part of the ski are connected to each other by gluing. The gluing may be done using any glue suitable for the purpose. In one embodiment, the upper part and the base part of the ski are connected to each other by gluing and / or pressing, e.g. by a ski press. In one embodiment, the connecting is done by hot-pressing. In one embodiment, connection means are provided at the upper part and / or the base part of the ski for connecting the base part of the ski to the upper part or for facilitating the connection. In one embodiment, connection means are provided at the base part of the ski for connecting the base part of the ski to the upper part of the ski. In one embodiment, connection means are provided at the base part of the ski and counterparts are provided at the upper part of the ski for connecting the base part of the ski to the upper part of the ski. In one embodiment, connection means are provided at the upper part of the ski and counterparts are provided at the base part of the ski for connecting the upper part of the ski to the base part of the ski. In one embodiment, the base part of the ski or the material, e.g. profile material, forming the base part is provided with grooves guiding the connection between the upper and the base part of the ski. In one embodiment, the upper part and the base part of the ski are connected to each other using the connection means and, in addition, by gluing and / or pressing. Alternatively, the upper part and the base part may be connected to each other by any suitable means. In one embodiment, the upper part and the base part of the ski may be connected to each other in a step of manufacture of the upper part and the base part.

[0016] In one embodiment, the hollow space inside the ski body has been provided with at least one additional reinforcement, sensor, filler, adjusting mechanism, or some combination thereof. In one embodiment, the hollow space inside the ski body has been provided with additional reinforcements, e.g. in a vertical and / or horizontal position. In one embodiment, the hollow space inside the ski body has been provided with at least one or more sensors, preferably for collecting information, e.g. about the functionality of the ski. In one embodiment, the hollow space inside the ski body has been provided with a filler, e.g. gas. In one embodiment, the hollow space inside the ski body has been provided with helium gas to increase the lightness of the ski. In one embodiment, the hollow space inside the ski body has been provided with at least one or more adjusting mechanisms for adjusting the ski or its properties, e.g. during use, such as during skiing.

[0017] In one embodiment, the ski body may be shaped to a desired shape. In one embodiment, a tip and / or a tail of the ski may be shaped. The shaping may be done for example by milling, grinding or other suitable manner. In one embodiment, a tip and / or a tail of the ski are / is finished. The finishing may be done using any suitable method and device. In one embodiment, the ski body is provided with tip and / or tail reinforcements of the ski.

[0018] In one embodiment, an upper surface of the upper part of the ski may be provided with a desired surface pattern, e.g. during the manufacture or after the manufacture of the upper part. In one embodiment, a surface material is attached to the upper surface of the upper part of the ski. In one embodiment, the surface material is attached by gluing to the upper part of the ski. In one embodiment, attaching the surface material is done by applying glue at least to the upper surface of the upper part of the ski and optionally also to the edges, and by gluing at least one surface material layer to the upper part of the ski. The glue to be applied to the upper surface of the upper part and / or to the edges of the ski may be any glue suitable for the purpose. The glue may be applied by any suitable device, such as a glue applying device. The surface material may be patterned as desired, and / or it have any desired graphic appearance or colours. Alternatively, the upper surface of the upper part of the ski may be provided with a desired surface pattern by any suitable patterning method.

[0019] In one embodiment, a base of the base part of the ski is provided with a base material, e.g. base material that facilitates sliding. In one embodiment, a base of the base part of the ski has been provided with a sliding base. In one embodiment, the base material is attached by gluing to a lower surface of the base part of the ski. The glue used may be any glue suitable for the purpose. In one embodiment, the sliding base is provided at the base part of the ski by gluing or other suitable attaching method.

[0020] In one embodiment, the ski body may be finished, e.g. together with the surface and / or the base material, by guiding it to pass through pressing, e.g. press rolls, to form a pressed ski product.

[0021] The ski according to the invention has considerable advantages when compared to the known skis. Due to the invention, the total weight of the ski may be reduced to a considerable degree when compared to the known skis. A hollow space, e.g. an air space, may be arranged inside the ski easily and in a simple manner. Due to the invention, lightweight skis are provided for users.

[0022] The skis according to the invention may be easily manufactured using existing equipment. In addition, the invention may be used to quickly and easily form desired types if skis. In addition, the invention enables serial production of lightweight skis. The method may be easily modified according to the intended use or application.

[0023] The invention may be used to form a suitable ski for any purpose, e.g. cross-country ski, backcountry ski, other ski or a corresponding ski product. The ski may be easily modified according to the intended use or application.LIST OF FIGURES

[0024] Fig. 1 illustrates parts of one ski according to the invention.EXAMPLES

[0025] The invention will now be described with detailed examples of an embodiment, referring to the accompanying figure.

[0026] The ski comprises a ski body that comprises an upper part of the ski and a base part of the ski. The upper part of the ski has been arranged to be curved in a longitudinal direction of the ski, such that the curved shape is directed upward from the basic plane of the ski, such as the ground plane. The base part of the ski has not been arranged to be in the same way curved, although the base part may be provided with slight curvature, if desired. Due to the curved shape of the upper part, a hollow space is provided inside the ski body between the upper part and the base part of the ski. The upper part and the base part of the ski are connected to each other to form the ski body, e.g. by gluing and / or pressing, in one embodiment using a press. The base part and / or the upper part of the ski may comprise connection means to facilitate the connecting of the base part and the upper part to each other.

[0027] According to the example, the upper part of the ski has been formed from a U-shaped profile material, e.g. a U-shaped composite profile. The profile material is shaped at least preliminarily into the shape of a ski and it is provided with a curved shape in a longitudinal direction of the ski. The base part of the ski is made from another composite profile that may comprise grooves guiding the connection between the upper and the base part. The upper part and the base part of the ski are glued and pressed together to form the ski body. The composite profiles may have been formed by a pultrusion method.

[0028] According to one embodiment, a sliding base is attached to the resulting ski, to a lower surface of the base part thereof. In one embodiment, the sliding base is attached by gluing to the lower surface of the base part of the ski.

[0029] According to one example, a tip and a tail of the ski may be shaped and / or finished in connection with the manufacture of the ski.

[0030] Fig. 1 illustrates an example of parts of the ski body, i.e. an upper part of the ski, a base part of the ski and a sliding base. The upper part of the ski (illustrated uppermost in the figure) comprises a curved shape in a longitudinal direction of the ski. The base part of the ski (illustrated in the middle in the figure) is connectable to the upper part of the ski, such that a hollow space is provided between the upper part and the base part. The sliding base (illustrated lowermost in the figure) is attachable to a lower surface of the base part of the ski, whereby the sliding capacity of the ski may be improved.

[0031] The ski according to the invention may be formed from various raw materials, and it is suitable for use in various applications. Further, the method for manufacturing a ski according to the invention is suitable for use in a variety of applications for manufacturing various types of skis from different raw materials.

[0032] The invention is not limited merely to the above examples, but many modifications are possible within the scope of the inventive idea defined by the claims.

Examples

examples

EXAMPLES

[0025]The invention will now be described with detailed examples of an embodiment, referring to the accompanying figure.

[0026]The ski comprises a ski body that comprises an upper part of the ski and a base part of the ski. The upper part of the ski has been arranged to be curved in a longitudinal direction of the ski, such that the curved shape is directed upward from the basic plane of the ski, such as the ground plane. The base part of the ski has not been arranged to be in the same way curved, although the base part may be provided with slight curvature, if desired. Due to the curved shape of the upper part, a hollow space is provided inside the ski body between the upper part and the base part of the ski. The upper part and the base part of the ski are connected to each other to form the ski body, e.g. by gluing and / or pressing, in one embodiment using a press. The base part and / or the upper part of the ski may comprise connection means to facilitate the connecting of th...

Claims

1. A ski, characterized in that the ski comprises at least a ski body that comprises an upper part of the ski and a base part of the ski, and at least the upper part of the ski has been arranged to be at least partly curved, such that the curved shape is directed upward and a hollow space is provided inside the ski body between the upper part and the base part of the ski.

2. The ski according to claim 1, charac- terized in that the ski body has been formed from a raw material selected from a group consisting of carbon fibre, fiberglass, fibre composite material, fibre-plastic composite material, and some combination thereof.

3. The ski according to claim 1 or 2, char- acterized in that a base of the base part of the ski has been provided with a sliding base.

4. The ski according to any one of claims 1 - 3, characterized in that the upper part and / or the base part of the ski have / has been formed from a profile material.

5. The ski according to any one of claims 1 - 4, characterized in that the hollow space inside the ski body has been provided with at least one additional reinforcement, sensor, filler, adjusting mechanism, or some combination thereof.

6. The ski according to any one of claims 1 - 5, characterized in that the curved shape has been arranged at least in a middle part of the ski body in a longitudinal direction of the ski.

7. A method for manufacturing a ski, char- acterized in that a ski body is formed, which ski body comprises an upper part of the ski and a base part of the ski, by connecting the base part and the upper part of the ski to each other, and at least the upper part of the ski is arranged to be at least partly curved, such that the curved shape is directed upward and a hollow space is provided inside the ski body between the upper part and the base part of the ski.

8. The method according to claim 7, char- acterized in that the ski body is formed from a raw material selected from a group consisting of carbon fibre, fiberglass, fibre composite material, fibre-plastic composite material, and some combination thereof.

9. The method according to claim 7 or 8, characterized in that the upper part and / or the base part of the ski are / is formed from a profile material.

10. The method according to any one of claims 7 - 9, characterized in that the upper part of the ski is formed from a U-profile material.

11. The method according to any one of claims 7 - 10, characterized in that the upper part and / or the base part of the ski are / is formed by means of a mould.

12. The method according to any one of claims 7 - 11, characterized in that connection means are provided at the upper part and / or the base part of the ski for connecting the base part of the ski to the upper part.

13. The method according to any one of claims 7 - 12, characterized in that a sliding base is attached to a base of the base part of the ski.

14. The method according to any one of claims 7 - 13, characterized in that the hollow space inside the ski body is provided with at least one additional reinforcement, sensor, filler, adjusting mechanism, or some combination thereof.

15. The method according to any one of claims 7 - 14, characterized in that a tip and a tail of the ski are finished.

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