JPH0226576A - Ski plate - Google Patents

Abstract

PURPOSE:To pursue a higher speed by composing a side surface component so as to form at least one part of a side surface to be the outer surface of a ski plate of a polyethylene resin. CONSTITUTION:Side surface components 40 at both sides, which are sandwiched between an upper surface component 20 to support a foot and a lower surface component 30 made into a sliding surface and in which upper edges and lower edges are joined to the upper surface component 20 and lower surface component 30, respectively, is provided. The side surface components 40 are composed of plural materials, and at least one part of the outer surface is formed of a polyethylene resin 41. Namely, not only the lower surface but also the side surface can be made into the sliding surface, and even when the side surface is made into contact with snow at the time of planting the edge, a friction resistance is made small, and the sliding can be executed without reducing a speed. Consequently, the higher speed can be pursued in comparison with a conventional ski plate.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a ski that pursues sliding performance.

(Prior Art) Conventionally, polyethylene, particularly high molecular weight polyethylene, which is excellent as a sliding surface material, has been used for the bottom surface of skis. This high molecular weight polyethylene is used as the gliding surface material of almost all skis because it has a very low coefficient of friction with the snow surface and has little snow and ice adhesion.

(Problem to be solved by the invention) By the way, in the world of ski sports, 1/100
The current situation is to compete for 0 seconds, and we are looking for skis with better sliding performance and the ability to ski at higher speeds. However, in conventional skis, polyethylene resin is used only on the sliding surface of the lower component of the ski, so when the ski is sinking, using the edge, or conversely when flowing, the sides of the ski may come into contact with snow. , the frictional resistance on the side of the ski is large.

This was a major cause of preventing speed-up.

(Means for Solving Problem S) Therefore, the present invention makes it possible to pursue higher speeds by forming the side surface component so that at least a part of the side surface, which is the outer surface of the ski, is formed of polyethylene resin. The purpose is to provide skis.

(Function) When the sides of skis come into contact with snow, polyethylene resin, which is excellent as a sliding surface material, comes into contact with the skis, and since its frictional resistance is lower than that of other materials, the resistance is reduced and higher speeds can be achieved.

(Example) Next, the present invention will be explained based on the drawings.

Figures 1 to 5 show an embodiment of the ski of the present invention. 10 in Figure 0 is a ski;
As is clear from the figure, the upper surface component 20 that supports the foot
, a lower surface component 30° that becomes a sliding surface, and a side surface component 40 on both sides. and a core material 50 surrounded by these surface-constituting members 20, 30, and 40.

The upper surface component 20 includes, for example, an FRP (fiber-reinforced plastic) board 21 and a surface decorative board 22, and the lower surface component 30 includes, for example, a FRY' board 31. Spacer 32. It is composed of a steel edge 33 and a sliding face plate 34, and a core material 50 is made of, for example, wood, foamed urethane resin, or the like. Here, the sliding face plate 34 is made of polyethylene resin as described above. Polyethylene resin is
Because the molecular structure is extremely stable and inert, complete adhesion is difficult even with adhesives.

This is particularly noticeable in the case of high molecular weight polyethylene resins such as high density polyethylene resins and ultra high molecular weight polyethylene resins. Therefore, the sliding surface plate 3 in the lower surface component 30
For adhesion with the spacer 32 etc. of No. 4.

First, the surface of the polyethylene resin is subjected to a surface activation treatment using chemicals, flame, etc., and then an epoxy resin adhesive is used.

Further, the side component 40 is laminated with a plurality of materials.

It is formed by integral molding such as assembly, insert molding, or outsert molding. Among the plurality of materials, the polyethylene resin layer 41 forms at least a part of the outer surface of the ski lO, and the polyethylene resin and the other material 42 are bonded to each other by adhesive as described above. Since this is not good, adhesive bonding after surface activation treatment and mechanical structural (physical) bonding in the form of dovetail grooves as shown in FIG. 1 are used alone or in combination. Other materials 42 include ABS resin, phenol resin, ionomer resin, FRP, etc. as resins with relatively good adhesive properties.

By the way, as is clear from FIG. 5, this side component 40 does not have the same height from the tip to the rear end, and the height changes due to the arch bend curve, so the upper and lower end surfaces are cut by cutting. At this time, a layer 41 of polyethylene resin and a layer 42 of another material 42 having good adhesive properties appear on the upper and lower end surfaces. Thereafter, both surfaces of the polyethylene resin layer 41 are subjected to the surface activation treatment described above.

The adhesive property is improved to ensure adhesion to the upper and lower surface constituent members 2G and 30. If the adhesive (seal) at this location is not secure, water will enter and the life of the ski will be significantly reduced.

In this case, since the surface activation treatment performed on the upper and lower end surfaces of the polyethylene resin layer 41 is technically difficult, even if the surface activation treatment is incomplete, or in order to shorten the ski manufacturing process, the surface activation treatment of this part may be performed. Even if this is omitted, the adhesion between the other material 42 of the side surface component 40 with good adhesiveness and the upper and lower surface component members 20 and 30 is reliable, thereby preventing moisture from entering. I can do it.

Other modified examples of the side component 40 are shown in FIGS. 2 to 4, but are not limited thereto; the right side in FIGS. 2 to 4 is the outer surface of the ski 10. be.

FIG. 2 shows a side component 60 with a layer 6 of polyethylene resin.
1 and another material 62 are surface-bonded using a combination of adhesive bonding and mechanical structural bonding using rectangular cross-sectional grooves. Therefore, this side surface component 60 is not only joined to the core material 50 but also has upper and lower end surfaces made of polyethylene resin layer 61 and other material 6.
2 appears, and the adhesion with the upper and lower surface constituent members 20 and 30 is also good, and if the polyethylene resin layer 61 is subjected to surface activation treatment, the adhesion will become even stronger.

3 shows the polyethylene resin layer 71 of the side component 70 and another material 7 surrounding this layer 71, whereas in FIG.
Both 2 and 2 are exposed on the outer surface, and the core material 50
The upper and lower surface constituent members 20 and 30 can be joined together using only an adhesive. In this example, a polyethylene resin layer 71 and other materials 72 are also used.
The side surface component 70 consists of.

A combination of adhesive bonding and mechanical structural bonding is used.

In this case, the side component 70 is made of a synthetic resin material that is superior in adhesiveness and W1 impact resistance than polyethylene resin at the portions in contact with the upper and lower surface components 20 and 30 and the outer surface thereof, so that the side surface component 70 is relatively soft. Since the polyethylene resin is protected from above and below, the upper and lower surface constituent members 20.3
There is no need to worry about damage caused by input from 0. Of course, there is no need to perform surface activation treatment or the like between the upper and lower structural members 20 and 30, and sufficient bonding can be ensured with adhesive.

The side surface component 80 shown in FIG.
．． 83. Here, two sheets are used, and a total of three sheets are laminated and bonded. In this laminated bonding, the polyethylene resin layer 81 and other materials 82, 83 are bonded after the above-mentioned surface activation treatment is performed. Further, the connection between the upper and lower surface components 20 and 30 is also performed in the same manner as in FIGS. 1 and 2.

In the above explanation, an example has been described in which the upper and lower surface constituent members 20.30, the side surface constituent members 40.60.70.80, the core material 50, etc. are manufactured separately and then assembled together. Simultaneous molding can also be performed by incorporating it into a mold.

(Effects) As explained above, in the ski according to the present invention, at least a part of the outer surface of the ski is made of polyethylene resin, so that it is possible to use only the lower surface as a sliding surface. Since the sides can be used as sliding surfaces, even when the sides come into contact with the snow by setting up an edge, the frictional resistance is small, and it is possible to slide without reducing speed.

Therefore, compared to conventional skis, it is possible to provide skis that can pursue higher speeds.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the ski according to the present invention, and FIG. 1 is a cross-sectional view taken along line 1-1 in FIG.
FIG. 4 is a cross-sectional view showing a modified example of the side component, respectively;
FIG. 5 is a side view of the ski. 10...Ski 20...Upper surface component 30...Lower surface component

Claims (5)

[Claims] (1) Both sides are sandwiched between an upper surface component that supports the foot and a lower surface component that serves as a sliding surface, and whose upper and lower ends are joined to the upper surface component and the lower surface component, respectively. 1. A ski having a side surface component, characterized in that the side surface component is made of a plurality of materials, and polyethylene resin forms at least a portion of the outer surface. (2) The ski according to claim 1, wherein at least a portion of the upper and lower end surfaces of the side component members are made of a synthetic resin material other than polyethylene resin. (3) In claim 1, the side surface component is formed of a synthetic resin material having superior adhesiveness and impact resistance than polyethylene resin at the portion in contact with the top surface component and the bottom surface component and the outer surface in the vicinity thereof. A ski board characterized by: (4) In claims 1 to 3, the side structural member is configured to mechanically and structurally (
A ski that is characterized by a combination of physical (physical) bonding and adhesive bonding. (5) The ski according to any one of claims 1 to 4, wherein the polyethylene resin is a high molecular weight polyethylene resin.