JPS60139268A - Ski - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention has a gap member consisting of a core material, an upper band-shaped support member, and a lower band-shaped support member, and at least one of these two band-shaped support members has a The present invention relates to a ski having two strip-shaped support layers made of a supporting material, in particular metal, between which an intermediate layer made at least partially of a viscoelastic material is arranged.

PRIOR ART In the case of skis with a strip support made of metal, consisting of two layers of strip support, it is preferable to use a damping layer, for example made of a viscoelastic material, in order to improve running properties.

This is particularly important when driving on uneven roads at high speeds.

It has already been proposed (US Pat. No. 2,995,379) to arrange a buffer layer of rubber-like material between two strip-shaped support layers of metal that are straight in cross section.

Furthermore, at least one of the two support bands consists of a contoured metal layer with a central groove pointing in the direction of the core, and between the side edges of the support band and the core there is a layer of viscoelastic material. A ski in which a strip-like layer is arranged is known (Austrian Patent No. 366,919).
The problem to be solved by the invention The problem to be solved by the invention is, inter alia, to make possible even by simple deformations a large number of types of shapes with different properties within the scope of an essentially unchanged basic structure, i.e. within the scope of the structural system. It is an object of the present invention to obtain other configurations which are advantageous in terms of function, manufacturing and economy of the band-like support structure of the above-mentioned concept.

Means for Solving the Problem According to the invention, at least one of the two strip-shaped support layers 3, 4 of the upper strip-shaped support and/or the lower strip-shaped support has an irregular shape when viewed in cross section. A side part 5 of the intermediate layer made of a viscoelastic material in the form of a strip is arranged in the region of the edge of the strip-shaped support, and a central layer 6 arranged in the central region of the strip-shaped support of the intermediate layer. is solved by having a different thickness than the strip-like side parts 5 of the intermediate layer.

Depending on the dimensioning of the strip-like side members of the intermediate layer between the two strip-like support layers and the different thicknesses of the center layer, as well as by the added force method of using different materials for the center layer, the structural On the basis of the basic concept, a wide spectrum of ski types can be developed that differ, for example, in terms of elasticity, dynamic and strength properties, and thus also in terms of running behavior.

Another preferred embodiment of the ski according to the invention provides that at least one of the two strip supports 3, 4 of the upper strip support and/or the lower strip support has a groove in the central region, this strip support The intermediate layer consists of at least three strips, the lateral lines of which are approximately at the same height, extending in the longitudinal direction of the ski, which strips form the two outer members 5 of viscoelastic material of the intermediate layer. It is characterized in that the central strips, which are mutually arranged at the edges and are arranged within the range of the grooves, form the central layer 6 of the intermediate layer and have a different thickness than the two outer strips.

The grooves produced when profile-shaping the strip support layer are used for accommodating a filler layer, e.g. from plywood, or for accommodating a layer from reinforced plastic, thereby increasing the torsional stiffness, for example. This results in a triple lower band-like support which has a high directional stability and effects on the edge. In this case, it serves as an advantage that the lateral edges of the layer inserted into the groove of the strip support layer are protected, which is important for layers made of reinforced plastic.

The side strips of the intermediate layer made of viscoelastic material are arranged between the steel edge and the band-like support layer made of light metal, while the central layer of the intermediate layer also made of viscoelastic material has two strips made of light metal. In one preferred embodiment of the ski, such as between layers of band-like support, the side strips can be dimensioned thicker than the central layer of the intermediate layer. A thick embodiment of the side strip made of viscoelastic material is advantageous for the shock-absorbing and vibration-absorbing bond between the edge made of steel and one strip support layer made of light metal, each made of light metal. In the case of joining two layers of strip-like support material, a thin central layer is sufficient, thereby preventing oversizing of the layer of viscoelastic material. That is, the oversizing of the viscoelastic insert results in a fatigue phenomenon of the total bonding of the ski members in the negative plane, and also limits the strengthening of the band supports in order to obtain a constant torsional stiffness of the ski, which would be uneconomical.

Another preferred embodiment of the ski according to the invention is:
It is confirmed that the edge of at least one strip-shaped support layer 4 not on the core side of the upper strip-shaped support material and/or the lower strip-shaped support material and the leg of the steel edge 9 are connected to each other in one plane. Features. This means that if the lower band support section would be placed on the rim section of the steel edge,
This is particularly advantageous since it is possible to dispense with an additional compensation layer as would normally be required between the running surface coating and the lower strip support layer of the lower strip support.

The strip-shaped support material layer preferably consists of a light metal, in particular an aluminum alloy. Viscoelastic materials include nidistomer,
For example, rubber sheets or soft-conditioned polyurethane can be used.

EXAMPLES Next, the present invention will be explained in detail with reference to Examples, but the present invention is not limited thereto.

In the embodiment according to FIG. 1, the skid part consists of a core 1 made of resin and side edges 2 made of phenolic resin. On the underside of this core, two support strip layers 3 and 4 (of the lower support strip) are arranged, in which case the support strip layer 3 on the core side is visible in cross section. It is straight, and the other strip-shaped support material layer 4 is contoured in cross section.

Between the two strip-shaped support material layers 3, 4 there are strip-shaped side elements 5 and a central layer 6 having a thickness different from the side elements 5, which likewise consist of a viscoelastic material. A layer 7 of glass-fiber-reinforced plastic, for example epoxy resin, is arranged in the groove of the carrier strip layer 4 to strengthen the carrier strip.

For this purpose, either fully cured laminates can be used or wet rovings (which are therefore particularly well suited for grooves in the strip support layer 4) can be used, which makes it possible to It is advantageous. The thickness of the layer 7 corresponds to the depth of this groove, so that the running surface covering 8 from polyethylene results in a flat support. The steel edge 9 is fixed in the upper strip-shaped support layer 3 via strip-shaped side parts 5 made of viscoelastic material. On top of the core material 1, a band-shaped support material layer 10, which is individually shaped into irregular shapes, is arranged from an aluminum alloy. An IJJ knob 1 is present, and in the groove of this carrier strip layer a layer 12 of glass fiber-reinforced plastic, for example epoxy resin, is arranged to strengthen the carrier strip. A surface covering layer 13 made of ABS plastic is applied directly onto the layer 12 and the legs of the profiled strip support layer.

The embodiment shown in FIG. 2 is distinguished from that in FIG. 1 exclusively by the special profile of the lower strip-shaped support layer 4, which in the embodiment according to FIG. It does not have any legs, but is directly connected to the legs of the steel edge 9 via the edge of the molded body, which is inclined once in cross section and has a downwardly bent corner. The structure of the remainder p is shown consistent with that of FIG.

FIG. 3 shows another embodiment in which the lower band-shaped support layer 4 has legs 4b which are placed on top of the legs of the steel edge 9. FIG. - a running surface coating 8 on the surface;
Between the layer of glass-fiber-reinforced plastic and on the other hand between the legs of the steel edge 9, a compensating layer 14, for example made of plywood, is arranged. The remaining structure corresponds to that shown in FIG.

Both the embodiments shown in FIGS. 4 and 5 have one lower support strip from two support strip layers 3.4 of aluminum alloy, but in this case the embodiments shown in FIGS. Unlike the embodiment shown in FIG.
are straight in cross section and are directly connected to the running surface covering 8 made of polyethylene. The reverse side of the grooves of the irregularly shaped upper band-shaped supporting material layer faces towards the core 1 (FIG. 4) or towards the central layer 6 (FIG. 5).
Depending on the type of material, the IJ tube member 5 is either thicker (FIG. 5) or thinner (FIG. 4) than the central layer 6 of the respective embodiment. In the embodiment shown in FIG. 5, the glass fiber-reinforced plastic layer 7 acting together with the strip reinforcement is present in the groove of the contoured upper strip support layer 3; The thickness of layer 7 corresponds exactly to the depth of this groove, so that core material 1
One plane contacts the layer 7 and the leg 3b of the band-shaped support layer 3. In the case of the embodiment according to FIG. 4, the layer used for reinforcing the strip support is unnecessary. Between the downwardly extending legs 3b of the strip-shaped support layer 3 and the core 1 there is a strip-shaped layer 5b of a viscoelastic material.

Various modifications of the embodiments shown are possible within the scope of the invention. That is, if no reinforcement of the strip support is required in the ski type in question and, for example, good damping is desired, for example ()FK single layer 7 can be replaced by a pure filling layer, for example from plywood. Or it can be replaced by a layer of viscoelastic material. Conversely, the central layer 6 can be replaced by a layer made of reinforced plastic or a filler layer made of plywood, for example. One possible variant of the embodiment shown is that the upper support strip, or only the upper support strip, consists of two support strip layers with an intermediate layer between them.

Of course, for the core material 1 and the side edge portions 2, the surface coating layer 13 and the running surface coating 8 are made of materials different from those mentioned in the middle of the description of the cases of FIGS. 1 to 5. be able to. In particular, the core 1 can consist of a foamed material, for example.

[Brief explanation of the drawing]

FIG. 1 shows one layer sequence of an alpine ski according to the invention.
2 is a perspective view, partially in section, of an embodiment; FIGS. 2-5 are each a partial cross-sectional view of an embodiment according to the invention; FIG. 3.4. Band-shaped support material layer 9-゛ Steel ν Reen/Fig, 2 4 Musaka' support) F#1 0;n

Claims (1)

[Scope of Claims] 1. Two belt-shaped supports comprising a core member, an upper belt-shaped support member, and a lower belt-shaped support member, and at least one of these two belt-shaped support members is made of a material that is strongly supported. In a ski having support layers and between which an intermediate layer consisting of a viscoelastic material is arranged at least in part, two support bands, an upper support band and/or a lower support band, are provided. At least one of the material layers (3, 4) is contoured in cross-section, and in the area of the edge of the strip-shaped support there is arranged an intermediate layer side part (5) of viscoelastic material in the form of a strip. Ski, characterized in that the central layer (6) arranged in the central region of the strip-like support of the intermediate layer has a different thickness than the strip-like side members (5) of the intermediate layer. 2. The ski according to claim 1, wherein the central layer of the intermediate layer is made of a viscoelastic material. 6. The ski according to claim 1, wherein the central layer of the intermediate layer is made of plywood. 4. The ski according to claim 1, wherein the central layer of the intermediate layer is made of reinforced plastic. 5. At least one of the two strip-shaped support layers (3, 4) of the upper strip-shaped support and/or the lower strip-shaped support has a groove arranged in the central area of the strip-shaped support O, the back side of this groove being A ski 6 according to any one of claims 1 to 4, oriented in the direction of the intermediate layer (6), a ski consisting of a core, an upper band-shaped support and a lower band-shaped support. one member, at least one of the two strip-shaped supports comprises two layers of strip-shaped supports made of a material for strong support, and between the strip-shaped supports, at least a portion is made of a viscoelastic material. in which at least one of the two strip-like support layers (3, 4) of the upper strip-shaped support and/or the lower strip-shaped support has a groove in the central region; The lateral lines of this band-shaped support are approximately at the same height and the intermediate layer consists of at least three strips extending in the longitudinal direction of the ski, which strips form the two outer members (5) of the viscoelastic material of the intermediate layer. and a central strip which is mutually arranged at the edge of this strip-shaped support and which is arranged within the groove forms the central layer (6) of the intermediate layer and has a different thickness than the two outer strips. Skiing, characterized by: 7 At least one of the two strip-shaped support layers (3, 4) of the upper strip-shaped support and 1 or the lower strip-shaped support has a groove arranged in the central region of the strip-shaped support, the back side of this groove being in the middle Ski according to claim 6, oriented towards the layer (6). 8. It has a gap member consisting of a core material, an upper band-shaped support material, and a lower band-shaped support material, and at least one of these two band-shaped support materials has two band-shaped support material layers made of a material that provides strong support. , in a ski in which an intermediate layer consisting of a viscoelastic material is arranged at least in part between these support strip layers, at least one support strip that is not on the core side of the upper support strip and/or the lower support strip; Ski 9, characterized in that the edge of the material layer (4) and the leg of the steel edge (9) are connected to each other in one plane. At least one of the two strip-shaped support layers (3, 4) has a groove arranged in the central region of the strip-shaped support, the back side of this groove being connected to the intermediate layer (6).
9. Ski according to claim 8, oriented in the direction of ). 10. Ski according to claim 8, characterized in that a layer (7) of reinforced plastic is arranged in at least one groove of the strip-shaped support layer (3, 4). 11. Ski according to claim 8, characterized in that a filling layer is arranged in at least one groove of the strip-shaped support layer (3, 4).