JPH0226523Y2 - - Google Patents

Description

[Detailed description of the invention] A. Field of industrial application This invention relates to the improvement of skis, and in particular to skis that reduce vibrations during skiing.

B. Prior Art Vibrations caused by skiing when skiing impair the ski's maneuverability, so it is desirable to reduce them.

This vibration is caused by the deflection of the ski when sliding, so increasing the stiffness of the ski can prevent this deflection, but skis with excessive stiffness will cause the running surface to deteriorate when turning on fresh snow or on a gentle slope. It was not practical because it did not bend along the snow surface and was buried in the snow, resulting in poor maneuverability.

Attempts have also been made to attenuate vibrations by using a sandwich structure of skis made of composite materials.

C. Problems that the invention aims to solve However, with this kind of structure, the overall weight of the ski inevitably increases, making it difficult to maneuver, and
Vibration is generated by the impact on the shovel part during skiing and is propagated throughout the ski, so it is necessary to dampen the vibrations in the shovel part and tail part in particular.
Therefore, these parts become heavy, and as a result, the ski has a large inertia in the turning direction, which hinders quick turns and impairs maneuverability.

This idea was created in order to solve the problems of the conventional technology as described above, and its purpose was to create a lightweight ski that dampens vibrations without impairing the elasticity of the ski and without adopting a sanderch structure. do.

D. Means to solve the problem This invention is a ski in which a rod made of a flexible material is strung from the front of the shoe attachment point on the upper surface of the ski body to the shovel end, and from the back of the shoe attachment point to the tail end. In this method, the above problem is solved by extending the rods at diagonal positions in the longitudinal direction of the ski body.

E. Function This device having the above-mentioned means has the function of converting the vibration generated in the ski into bending of the rod and attenuating it by the resistance of the bending.

In addition to damping vibrations, it also has the function of alleviating the load and impact applied to the ski, and these functions are performed by a rod that is independent of the ski body and does not depend on the structure of the ski body.

Furthermore, by extending the rods at diagonal positions in the longitudinal direction of the ski body, it also has the effect of converting the torsional movement of the ski into bending of the rods, and the torsion direction when the ski body is made thin is also achieved. It has the effect of preventing a decrease in rigidity.

Next, a specific embodiment of this invention will be described based on the accompanying drawings.

Embodiment FIG. 1 is a perspective view showing a first embodiment of this invention.

This embodiment is constructed by extending rods 7a and 7b from the front of the shoe attachment point 4 to the end of the shovel section 2 and from the rear of the shoe attachment point 4 to the end of the tail section 3 on the upper surface of the ski body 1, respectively. The middle part of the rod 7a is lifted from the ski body 1 by the support 8, so that the vibration of the ski can be easily converted into bending of the rod.
b is attached by lifting one end from the ski body 1 using a support 9.

The rod may be made of any material that is flexible, but in this embodiment carbon fiber is used.

In addition, in this embodiment, by spanning the rods at diagonal positions in the longitudinal direction of the ski body, it also has the effect of converting the torsional movement of the ski into bending of the rods. This prevents a decrease in rigidity in the torsional direction.

FIG. 2 is a perspective view showing a second embodiment of this invention.

In this example, in addition to using a rod made of a flexible material as a shock absorbing device, one end of the rod is lifted from the ski body by a support made of an elastic material, thereby absorbing the vibrations of the ski into the bending of the rod and support. It is converted and attenuated by the resistance of both.

From the roof of the support 11 erected in front of the shoe attachment point 4 on the upper surface of the ski body 1 to the end of the shovel part 2, and from the roof of the support 13 erected behind the shoe attachment point 4 to the tail 3 end. This embodiment is constructed by spanning the rods 10a and 10b, but in order to easily convert the vibration of the ski into bending of the rod, the rod 7a is
is installed by lifting the intermediate part from the ski body 1 using the support 8.

The pillars may be made of any material as long as they are highly elastic, but in this embodiment, urethane resin is used.

The rest of the structure of this embodiment is the same as that of the first embodiment.

FIG. 3 is a perspective view showing a third embodiment of this invention.

In this example, in addition to using a rod made of a flexible material as a shock absorbing device, one end of the rod is lifted from the ski body by a support made of an elastic material, thereby absorbing the vibrations of the ski into the bending of the rod and support. The point of conversion and attenuation due to the resistance of both is the same as in the second embodiment, but the difference is that the support is made into a horizontal U-shaped gate shape and the rod at the front of the ski is divided into two. .

From the roof of a support 15 erected in front of the shoe attachment point 4 on the upper surface of the ski body 1 to a support 16 erected at a midpoint between the support and the end of the shovel part 2, the shovel part is attached from the roof of the support 16. This embodiment is constructed by extending rods 14a, 14b, and 14c diagonally from the roof of a support 17 erected behind the shoe attachment point 4 to the tail 3 end.

G. Effects of the invention This invention is constructed as described above and has the following effects.

(a) Ski vibration is damped by independent rods without relying on the structure of the ski body, so there is no need to make the ski excessively rigid or use a sandwich structure for damping, improving maneuverability. You can get good skis.

(b) Rods dampen vibrations and at the same time reduce the load and impact applied to the ski, so even if the ski is made lighter, there is no risk of breakage when going over a gap, especially at the shovel and tail sections. This makes it possible to have a lightweight structure,
A ski with good maneuverability and low inertia in the direction of turns can be obtained.

(d) The rod post also functions as a ski cross stop.

Furthermore, by extending the rods at diagonal positions in the longitudinal direction of the ski body, the torsional movement of the ski is converted into bending of the rods, so the rigidity in the torsional direction when the ski body is made thin is reduced. It is possible to create thin skis without worrying about deterioration.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the first embodiment of the ski of this invention, Fig. 2 is a perspective view of the second embodiment of the same, Fig. 3 is a perspective view of the third embodiment of the same. FIG. 5 is a plan view of the second embodiment. In the figure, 1 is the ski body, 2 is the shovel part, 3 is the tail part, 4 is the shoe attachment point, 7a,
7b, 10a, 10b, 14a, 14b, 14c
is rod, 8, 9, 11, 12, 13, 15, 1
6 and 17 are pillars.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A ski in which a rod made of a flexible material is strung from the front of the shoe attachment point on the upper surface of the ski body to the shovel end, and from the rear of the shoe attachment point to the tail end. The ski is characterized in that it spans diagonally in the longitudinal direction of the ski body. 2. A request for registration of a utility model in which an additional post is erected midway between the post in front of the shoe attachment point and the end of the shovel, and rods are strung diagonally between these posts, as well as between the post at the intermediate location and the end of the shovel. The ski according to item 1 of the scope.