JPH07163695A - Ski plate - Google Patents

Abstract

PURPOSE:To improve balance stability and turning operation property during sliding even for a general skier by adding lateral deflection effect to a snow surface during turning sliding positively. CONSTITUTION:A slide surface 5 in a range along length X of a ski from around a front grounding point A in a ski plate main body 1 to around a back grounding point B except for around a shoe placing position 1C is partly formed of curved surfaces of smoothly continuous curvatures along width of the ski.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ski suitable for use, for example, in a general skier at a beginner / intermediate level, and more particularly, to positively impart a lateral slip effect to a snow surface during rotational sliding. It is intended to stabilize the balance during sliding and improve the operability of rotation.

[0002]

2. Description of the Related Art For example, a professional skier such as a racer or a skier of a high level, depending on the quality of the snow or the content of the competition, may skid on the sliding surface of the ski according to the required performance, or partially along the ski width direction. The convex or concave curved surface is manually tuned up.

Conventionally, generally commercially available skis have a rectangular cross-sectional shape from the up-turn portion to the tail portion, and the sliding surface thereof is a straight flat surface along the ski width direction. It has a standard finish.

[0004]

However, in particular,
In general skiers of beginner / intermediate level, the tune-up technology of the purchased skis is practically scarce, so it is not possible to tune-up according to the individual skill, and the skis are used as they are. At present, it is impossible to further stabilize the balance and improve the rotational operability.

In addition, even for high-class skiers,
Since the skis are tuned up manually, it is always difficult to maintain a finished surface that meets the required performance, and there is a limit to reproducibility, and we actually slip and make fine adjustments each time. However, there is a problem that advanced technology is required because of the current situation.

[0006]

It is an object of the present invention to positively impart a lateral slip effect to a snow surface during rolling and sliding, so that even a general skier can stabilize the balance during sliding and improve the rotational operability. It is to provide a ski that can be designed.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to the longitudinal direction of the ski except for the vicinity of the shoe mounting portion between the vicinity of the front ground contact point and the vicinity of the rear ground contact point of the ski body. The sliding surface in the range is formed into a convex curved surface with a smooth continuous curvature along the ski width direction.

Further, according to the present invention, the sliding surface in the range along the longitudinal direction of the ski excluding the vicinity of the shoe mounting portion between the vicinity of the front ground contact point and the vicinity of the rear ground contact point of the ski body is smooth along the ski width direction. The concave curved surface is formed with such continuous curvature.

Further, according to the present invention, the sliding surface between the vicinity of the front grounding point of the ski body and the vicinity of the shoe mounting portion is formed into a convex curved surface having a smooth continuous curvature along the ski width direction. At the same time, the sliding surface between the vicinity of the shoe mounting portion and the vicinity of the rear ground contact point is formed as a concave curved surface with a smooth continuous curvature along the ski width direction.

[0010]

That is, according to the present invention, by adopting the above configuration, the skiing surface of the ski body from the vicinity of the front ground contact point to the vicinity of the rear ground contact point has a smooth continuous curvature along the ski width direction. Since it is partially formed on the convex curved surface, the lateral displacement of the portion where the convex curved surface is formed on the snow surface becomes smooth during the rotational sliding.

Further, the ski surface of the ski body from the vicinity of the front ground contact point to the vicinity of the rear ground contact point is partially formed as a concave curved surface with a smooth continuous curvature along the ski width direction. In addition, the lateral displacement with respect to the snow surface of the other parts except the part where the concave curved surface is formed becomes smooth during the rotation and sliding.

Further, the sliding surface between the front grounding point of the ski body and the vicinity of the shoe mounting portion is formed into a convex curved surface with a smooth continuous curvature along the ski width direction, and the shoe mounting The running surface from the vicinity of the placement site to the vicinity of the rear ground contact point,
Since the concave curved surface is formed with a smooth continuous curvature along the ski width direction, the portion where the convex curved surface is formed during the skiing is easier to slide than the portion where the concave curved surface is formed. The lateral displacement with respect to the snow surface in front of the mounting site becomes smoother.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 schematically shows the entire structure of a ski according to the present invention, in which 1 is a ski main body.

In this ski body 1, a shoe-mounting central portion 4 extends from a front ski contact point A on the up-turn portion (tip portion) 2 side to a rear ski contact point B on the tail portion (rear end portion) 3 side. Has the desired arch vent in the raised state.

The sliding surface 5 of the ski body 1
The range 1A along the ski longitudinal direction X between the vicinity of the front ground contact point A of the ski and the vicinity of the center 4 of the shoe placement is a smooth continuous curvature along the ski width direction Y as shown in FIG. R1 is formed on the convex curved surface 5a,
In this convex curved surface 5a, the maximum height T with respect to the snow surface G is
It has at least 0.2 mm or more, and its curvature distribution continuously disappears in the front and rear portions in the ski longitudinal direction X.

Further, the shoe mounting portion 1 of the ski body 1
As shown in FIG. 3, C has a rectangular sectional shape similar to that of a ski having a conventional structure, and its sliding surface 5b is linear along the ski width direction Y.

Further, a sliding surface 5 of a range 1B in the longitudinal direction X of the ski between the vicinity of the center 4 for placing the shoe on the ski body 1 and the vicinity of the front ground point B after skiing is shown in FIG. As described above, the concave curved surface 5c is formed with a smooth continuous curvature R2 along the ski width direction Y, and the concave curved surface 5c has a maximum depth D with respect to the snow surface G of at least 0.2 mm or more. And has a curvature distribution that disappears continuously in the front and rear portions in the ski longitudinal direction X.

In the above embodiment, the skiing surface 5 of the range 1A extending from the vicinity of the front ground contact point A of the ski body 1 to the vicinity of the shoe mounting central portion 4 is mounted on the convex curved surface 5a. Regions 1B extending from the vicinity of the installation center portion 4 to the vicinity of the rear ground contact point B are formed on the concave curved surface 5c, respectively, and the vicinity of the shoe placement site 1C between the vicinity of the front ground contact point A and the vicinity of the rear ground contact point B is defined. It is also conceivable to partially form a convex or concave curved surface of at least 100 mm or more along the ski longitudinal direction X on the sliding surface 5 in the excluded range.

In order to shape the skid surface 5 of the ski body 1 into a curved surface, the inner surface of the ski is used, for example, when molding the ski, and a curvature is applied together with a strength member laminated on the lower surface of the ski. It is done by accustoming it to have.

[0020]

As is apparent from the above description, according to the present invention, the ski surface of the ski body from the vicinity of the front ground contact point to the vicinity of the rear ground contact point has a smooth continuous curvature along the ski width direction. Since it is partly formed on a convex curved surface, the slippage of the part where the convex curved surface is formed on the snow surface is smoothed during rotation and sliding. Can be stabilized and the operability in rotation can be improved.

In the second aspect, the skiing surface of the ski body from the vicinity of the front ground contact point to the vicinity of the rear ground contact point is partially formed into a concave curved surface with a smooth continuous curvature along the ski width direction. Since it is formed, the slippage of other parts other than the part where the concave curved surface is formed during the sliding is smooth against the snow surface.Therefore, even for general skiers, stabilization of the balance and rotation during sliding The operability can be improved.

Further, in claim 3, the sliding surface between the vicinity of the front ground contact point of the ski body and the vicinity of the shoe mounting portion is formed into a convex curved surface having a smooth continuous curvature along the ski width direction. However, since the sliding surface from the vicinity of the shoe mounting portion to the vicinity of the rear ground contact point is formed into a concave curved surface with a smooth continuous curvature along the ski width direction, it is convex during rotation and sliding. Even if it is a general skier, even if it is a general skier, the balance during sliding will be easier because the part where the curved surface is formed will slide more easily than the part where the concave curved part is formed, and as a result, the slippage to the snow surface in front of the part where the ski boot is placed becomes smoother. Can be stabilized and the operability in rotation can be improved.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a ski according to the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part from a vicinity of a front ground contact point of a ski to a vicinity of a shoe placement portion taken along line II of FIG.

FIG. 3 is an enlarged cross-sectional view of a main part of a shoe placement portion taken along line II-II of FIG. 1.

FIG. 4 is an enlarged cross-sectional view of an essential part of a space from a shoe placement portion to a vicinity of a ground contact point after skiing, taken along line III-III in FIG. 1.

[Explanation of symbols]

1 ... Ski main body, 2 ... Tip part (upturn part), 3 ... Rear end part (tail part), 4 ... Shoe mounting center part, 5 ... Glide surface, 5a ... Convex curved surface 5b: flat surface, 5c: concave curved surface, A: ground contact point before ski, B:
After-skiing ground contact point, 1A: Range from near the front ground contact point to near the shoe mount, 1B: Range from near shoe mount to near the after-ski ground contact point, 1C ... Near the shoe mount Range, R1, R2 ... curvature.

Claims (3)

[Claims] 1. A smooth continuous curvature along the ski width direction on a sliding surface in a range along the ski longitudinal direction excluding the vicinity of the shoe mounting portion between the vicinity of the front ground contact point and the vicinity of the rear ground contact point of the ski body. The ski is characterized by being partially formed on a convex curved surface. 2. A skid surface having a smooth continuous curvature along the ski width direction in a range extending along the ski longitudinal direction excluding the vicinity of the shoe mounting portion between the vicinity of the front ground contact point and the vicinity of the rear ground contact point of the ski body. The ski is characterized by being partially formed on the concave curved surface. 3. A ski having a convex curved surface with a smooth continuous curvature along the ski width direction, which extends from the vicinity of the front ground contact point of the ski body to the vicinity of the shoe mounting portion, and the shoe. A ski having a concave curved surface with a smooth continuous curvature along the ski width direction, which extends from the vicinity of the mounting portion to the vicinity of the rear ground contact point.