JPS61185285A - Ski board - 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 relates to a ski, and its purpose is to improve the vibration damping properties, moment of inertia, and maneuverability of the ski.

(Prior Art) Conventionally, skis made of wood, FRP, metal/glass, etc. have been known. Recently, skis made of a variety of materials have been put on the market in order to quickly attenuate vibrations during skiing and improve the maneuverability of the skis. As shown in the ski upper blade shown in FIG. A vibration damping member with a restraining member 14 such as an aluminum plate embedded in a rubber sheet or other highly viscoelastic material, or a weight on the shovel part of a ski as shown in Fig. 24. Skis equipped with plastic vibration absorbing devices 16 containing the same are also known.

(Problems to be Solved by the Invention) These skis had the following problems.

In other words, in the skis shown in Figs. 22 and 23, in order to improve vibration damping properties, a vibration damping method is used in which restraining members such as piano wire or aluminum plates are embedded in a rubber sheet or other highly viscoelastic material. Even if a restraining member with a high elastic modulus is used, the vibration damping member itself has no rigidity, so in order to increase the rigidity of the ski itself, it is necessary to add other reinforcing members. The skis have to be used for a variety of purposes, resulting in relatively high costs.Furthermore, the weight of the skis themselves increases, resulting in poor maneuverability.

In addition, in the case of skis like the one shown in Figure 24, the vibration damping effect of the vibration absorbing device is exhibited only for vibrations within a certain range of frequencies, so it is difficult to prevent vibrations from occurring in various gaps (uneven snow surfaces) at ski resorts. ), the skis will be exposed to vibrations of various frequencies, and the vibration absorption device will not be able to attenuate all of the vibrations, resulting in problems such as reduced ski maneuverability. It had Also, from a structural standpoint, it can only be attached to the shovel portion (front end) of the ski, so it is not possible to reduce vibrations generated at the tail portion (rear end) of the ski.

Therefore, there are also problems such as a decrease in the maneuverability of the ski while skiing at high speed. In addition, in these conventional skis in which vibration damping members are arranged as mentioned above,
Since the weight of the ski itself is too heavy, the moments of inertia of the shovel portion and the tail portion of the ski tend to become unbalanced, resulting in problems such as reduced maneuverability. Therefore, it has been desired to provide skis with good vibration damping properties and a good moment of inertia.

(Means for Solving the Problems) (Example) If one embodiment of the present invention is explained based on the drawings, as shown in FIG. This ski is characterized in that a protrusion 3 of an arbitrary shape is formed in the entire width direction of the ski.

In the present invention, by forming a protrusion 3 of an arbitrary shape in the entire width direction of the ski on the -1-plane component 2, it is possible to improve vibration damping performance and moment of inertia, which were not found in conventional skis. The direction of torsional strength and bending strength] is remarkable. By forming the protrusion 3 at either the front or rear of the ski fastening attachment area, the ski can be designed to be flexible, and the torsional and bending strength of the front and rear parts of the ski can be increased. It is now possible to design such things as

Further, the -E surface component 2 may be a single member, or by combining reinforcing members having various characteristics, the degree of freedom in designing the ski can be further improved.

In the ski according to the present invention shown in FIG. 1, chevron-shaped protrusions 3 are formed in the entire width direction of the ski on the toe surface component 2, but these protrusions are formed by foaming by injection molding. A method using pressure, a method using preforming, a method of simultaneous integral molding with a core material interposed, a method of separately molding the protrusion and integrating it with the L-side component, or any other method is adopted. It is possible.

(Function) As described above, in the present invention, since the protruding part 3 is formed in the entire width direction of the ski, the parts other than the protruding part are flexible, so that the ski can remain stable even when passing over an uneven snow surface while skiing. Since it flexes well along the uneven snow surface, it has good maneuverability and the protrusion absorbs and attenuates vibrations generated from the uneven slope, which is very effective. Furthermore, the protrusions 3 can prevent the skis from crossing each other during skiing.

(Other Embodiments) As other embodiments of the present invention, the protrusion 3 provided on the ski may be formed only on the shovel portion as shown in FIG.
They can be formed only on the tail portion as shown in FIG. 3, on both sides as shown in FIG. 4, or in any number as shown in FIG. In short, the position and number of the protrusions can be selected as appropriate, and as the number of protrusions increases, the vibration damping properties become even better.Also, as shown in Fig. 6, the protrusions 3 By making the shape into an arch shape, the air resistance during gliding is reduced and the gliding speed is increased.Although the figure shows a core material 4 interposed in the protruding part 3, this core material 4 includes: Foamed synthetic resin, light wood, foamed light alloy, synthetic resin with micro balloons, and other materials can be used alone or in combination.Also, as shown in Fig. 7, the protrusion 3 can be preformed separately in advance. Keep it -
It is also possible to adhesively bond it to the one-plane component 2, and by making the shape of the protrusion 3 trapezoidal, air resistance during sliding can be reduced. Also, from Figure 8 to Figure 19,
This is an embodiment in which the shape of the protrusion 3 is made into a chevron, an arch, a trapezoid, a square pyramid, a cabochon, etc. By making these shapes, it is possible to provide a ski with a visually new design, and it is also possible to As shown in FIG.
As shown in FIG. 1, a moment of inertia adjustment key storage section 7 may be provided at the protrusion 3, and a weight 9 may be detachably provided with a screw 8.

As in the embodiment shown in FIGS. 20 and 21, by storing a weight for adjusting the moment of inertia in the protrusion 3, it is possible to provide a ski with a moment of inertia that suits the skier's preference. I can do it. Furthermore, by making the weight 9 removable from the moment of inertia adjustment key storage section 7 using screws 8, the skier can freely change the moment of inertia depending on the conditions of the day. Note that these moment of inertia adjustment key storage parts can be provided at any location where the protruding part 3 is formed.

(Effects of the Invention) As described above, in the present invention, by arranging a material with good vibration damping properties in the protruding part 3 and providing the key storage part 6.7 for adjusting the moment of inertia, the In addition to quickly damping vibrations, it is possible to adjust the moment of inertia of the ski to suit the skier's physical strength and physical condition on the day, resulting in even better maneuverability.

Also, since the protrusion 3 is formed in the entire width direction of the ski,
In addition to improving the torsional strength of the ski itself, providing multiple protrusions 3 on the ski allows the ski to flex better between the protrusions when passing through uneven snow surfaces. Therefore, smooth ski operation is possible, and a ski that is easy to maneuver as well as vibration-damping properties can be provided.

Furthermore, in the ski of the present invention, a new external design can be provided, and the protrusions have the effect of intersecting the skis to prevent damage to the upper surface.

In addition, unlike conventional skis, the rigidity of the ski itself does not decrease due to the vibration damping member, so there is no need to use extra reinforcing members, and the cost is low. The weight of the board itself can be reduced. In addition, the shape of the protruding parts allows the air resistance value to be kept low during skiing, so it can also be used in skis for downhill competitions where speed is desired.

Thus, in the ski of the present invention, the degree of freedom in design is increased, and a ski that produces remarkable effects not seen before can be provided.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts showing an embodiment of a ski according to the present invention. FIGS. 2 to 5 are plan views showing other embodiments of the same ski. 6 and 7 are perspective views of main parts showing other embodiments of the same ski, FIG. 8, FIG.
2, FIG. 14, FIG. 16, and FIG. 18 are partial side views showing other embodiments of the same ski. Figures 9, 11, 13, 15, 17, and 19 are shown in Figures 8, 10, 12, 14, 16, and 18. FIG. 20 is a partially cutaway cross-sectional perspective view showing a state in which the moment of inertia adjustment weight is stored in the ski according to the present invention; FIG. 21 is a partial plan view of the ski according to the present invention; FIG. FIGS. 22 and 23 are cross-sectional perspective views of essential parts of a conventional ski, and FIG. 24 is a perspective view of the same. 1: Ski board, 2: L-side component, 3: Protrusion, 4: Core material, 6, 7: Weight housing for moment of inertia adjustment, 8: Screw, 9. Fists/weights, 10...Skis, 11---Rubber sheet. 12φ conflict/piano wire, 13... rubber sheet, 14... restraint member, top.''
... Vibration damping member, 16... Vibration absorbing device. 1. Indication of the incident 1985 Patent Application No. 03901 2. Name of the invention Skis 3 , Relationship with the case of the person making the amendment Patent applicant address 25 Inuyoucho, Higashi-ku, Osaka (541) Showa
Year Month Date (Voluntary) ``A ski in which a separate protector is arranged in the width direction of the ski is also disclosed in JP-A-52-86826 (3) Page 4 of the specification, lines 14 to 16. [Therefore,...a salary was desired.] is deleted and the following sentence is added: ``In addition, the above-mentioned Japanese Patent Application Laid-open No. 52-86826 discloses a method in which a removable protective body is attached to the two sides of J. Since the ski is disposed on at least one of the tip and rear ends, it has a vibration damping effect, but the moment of inertia tends to be unbalanced." (4) "Ski 1 on page 4, line 20 of the specification. " is corrected to "constitutes ski 1." (5) Delete "in the full width direction of the ski" in the first line of page 5 of the specification. (6) Add "integrally in the entire width direction of the ski" next to "protrusion 3" in the second and fifth lines of page 5 of the specification. (7) Delete "in the full width direction of the ski" in lines 4 to 5 of page 5 of the specification. The scope of claims is amended as follows. [1 Skis to the top and bottom of the ground M arbitrary part (q,
A ski characterized by having arbitrarily shaped protrusions formed in negative shapes on all sides of the ski. 2. The ski according to claim 1, wherein the shape of the protrusion is a ridge, an arch, a trapezoid, a truncated cone, a square pyramid, a cabochon, or a type thereof. 3. The ski according to claim 1, wherein the protruding portion is formed either at the front or rear of the ski fastener attachment area, or at the front or rear. 4. The ski according to any one of claims 1, 2, and 3 Q, wherein the protruding portion is formed with a weight storage portion for adjusting the moment of inertia. ”

Claims (1)

[Scope of Claims] 1. A ski, characterized in that a protrusion of an arbitrary shape is formed in an arbitrary part of the upper part of the ski in the entire width direction of the ski. 2. The ski according to claim 1, wherein the shape of the protrusion is a chevron, an arch, a trapezoid, a truncated cone, a square pyramid, a cabochon, or a shape similar to these. 3. The ski according to claim 1 or 2, wherein the protrusion is formed at either the front or rear of the ski fastener attachment area, or at the front or rear. 4. The ski according to claims 1, 2, and 3, wherein the protruding portion is provided with a weight storage portion for adjusting the moment of inertia.