JPS59214470A - 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] The present invention relates to improvements to skis.

Conventionally, skis have been made of wood, FEP, metal φ glass, etc.

In ancient times, wooden skis often had a keel shape with a raised upper surface to maintain strength, but they gradually became obsolete due to their heavy weight, poor maneuverability, and lack of bending rigidity. Skis have become flat, and have been replaced by high-performance skis made of FRl and metal.

Nowadays, skis have a double-tapered shape in which the thickness gradually increases from the tip to the center, and gradually becomes thinner from the center to the rear end, and the top surface is flat. Skis are becoming popular. As for the structure, a sandwich structure in which reinforcing members such as F and BP boards are arranged on the upper and lower surfaces of a core material, and a box structure in which reinforcing members are arranged around the entire circumference of the core material are known.

These structures are commonly used by ski manufacturers because they are easy to manufacture when manufacturing skis.

However, when considering skis from the viewpoint of physical properties,
It was extremely difficult to design the intercondyles by arranging them in a well-balanced manner among the intercondylar properties that influence each other, such as torsional strength, bending strength, vibration damping, and air resistance.

For example, if you improve the torsional strength of skis, the bending strength will increase, resulting in skis with stiff hips.
The vibration damping properties were also reduced, which had the disadvantage of having a negative impact on gliding performance.

In addition, in order to reduce the air resistance of skis while skiing, we have made holes of arbitrary shapes in the shovel part at the tip of the ski, and made the shovel part's rise as low as possible to reduce air resistance as much as possible. Efforts have been made to suppress this and increase the speed during sliding, but these methods have the disadvantage that the manufacturing process is labor-intensive and increases the manufacturing cost.

Therefore, it is desired to develop skis that have soft elasticity, high torsional strength, good vibration damping properties, and low air resistance by combining materials with various characteristics. Although research and development is being carried out, a satisfactory ski has not yet been provided.

In view of these conventional drawbacks, the present invention refers to the raised structure on the upper side of old wooden skis.
To improve the characteristics of skis such as rigidity, torsional strength, vibration damping properties, air resistance, etc. by changing the top surface shape of the ski from the conventional flat plate shape to a roof-shaped protrusion that swells upwards. The purpose was to provide skis with good sliding properties.

Embodiments of the present invention will be described based on the drawings.

Example 1 An arbitrarily shaped cutout 2 is provided on the upper surface component part 1 of the ski,
A roof-shaped protruding member consisting of an upper surface member 3, a reinforcing member 4, etc. formed separately in the cut-out portion and having a peak at the center of its width is then filled with a core material 6 made of an arbitrary material and then fitted and bonded. It is a ski board characterized by.

Example 2 This is a ski board filled with metal fibers or other fibers as the optional core material 6 in the above example.

Example 3 This is a ski in which non-coagulable mucus (for example, glycerin) or non-coagulable powder (for example, silica gel) is interposed between metal fibers and other fibers as the optional core material 6 in the above embodiments.

Since the ski of the present invention is constructed as described above, the reinforcing member 4 constituting the round roof-shaped protruding member has
For example, fiber-reinforced plastic materials made of carbon fiber, glass fiber, boron fiber, silicon carbide fiber, alumina fiber, aramid fiber, steel fiber, and other arbitrary fibers are used, or aluminum alloy, titanium alloy, and other metal materials are used. Alternatively, elementary ions such as fiber-reinforced thermoplastic materials, engineering plastic materials, etc. can be used alone or in combination. Therefore, by changing the material of the reinforcing member 4, the individual required characteristics (torsional strength, etc.) required of the ski itself can be improved.

Since the bending strength (2 bending stiffness, vibration damping properties, etc.) can be freely adjusted, it is possible to supply skis with performance suitable for skiers of all levels, from beginners to intermediate/advanced skiers and competitive athletes. There is a feature that dramatically increases the degree of freedom for the membrane of the plate. In addition, in the ski of the present invention, the ski body (core, upper surface, reinforcing member, steel edge, and sliding surface side) is formed in advance based on design standards, and is made of, for example, a glass fiber-reinforced plastic plate. (hereinafter abbreviated as CFRP board) is the upper surface component 1
By using a carbon fiber reinforced plastic plate (hereinafter abbreviated as CFRP&) for the reinforcing member 4 of the roof-shaped protruding member 5, the upper surface component vJ1 of the GFRJ'' plate is flexible and has a comparatively high rigidity. Although it is soft, the roof-shaped protruding part with the reinforcing member 4 made of CFRP board has high rigidity and strong torsional strength. The member 5 has high torsional rigidity and the other parts are highly flexible, making it possible to provide a ski with features not found in conventional skis.

In particular, unlike conventional flat skis, the upper surface component 1 has a roof-shaped protrusion, so air flows along the protrusion during skiing, which improves the directivity of the ski. At the same time, it has the effect of preventing the tip of the ski from lifting up, further improving skiing speed and maneuverability.

Furthermore, when separately molding the roof-shaped protruding portion forest used in the ski of the present invention, as shown in FIGS. 5 and 6, the upper surface member 3, the reinforcing member 4, and the core material 6 are combined. Therefore, if a polyurethane elastomer foam material is used for the core material 6, the vibration damping properties of the ski itself will be extremely good. In addition, if metal fibers or other fibers are used alone as the core material 6, or if the fibers are interposed with non-coagulating mucus or non-coagulating powder, the fibers will rub against each other due to the vibrations of the ski during skiing. Because the vibrations are damped by converting them into thermal energy, the skis slide more closely to the snow surface, resulting in significantly improved glide performance and maneuverability.
do.

For reference, an example of a method of fitting and fixing the roof-shaped protruding member 5 to the cutout part 2 of the upper surface forming part fA1 is as shown in FIGS. 3 and 5. lr;A
4th method of providing a stepped portion in the cutout portion 2 of 1 and molding and fixing the upper surface member 3 so that the end portion fits into the stepped portion
As shown in the figure and FIG.
A method of forming and fixing the reinforcing member 1 so that the end portion thereof fits into the stepped portion, as shown in FIGS. 7 and 8, involves cutting out the upper surface component 1. There is a method of molding and fitting and fixing the "-face member 3 and the reinforcing member 4, which have the same shape as the part 2. Furthermore, as shown in FIGS. 9 and 10, the cutout part 2 of the upper surface component l There is a method in which a roof-shaped protruding member 5 is formed on a flat plate that matches the cut out portion, and is fitted and bonded to the entire width of cedar. In this case, if an aluminum alloy, titanium alloy, or other metal plate is used as the flat plate that matches the cutout, it becomes possible to press-form a roof-shaped protruding shape, and also GF, RP plate, C'FRP plate When using a mold, etc., each can be molded extremely easily with a mold.

In addition, the shape of the roof-shaped protruding shape portion forest of the present invention is
It is also preferable to use an arch shape or a trapezoidal shape as shown in FIGS. 1 and 12. Arched or trapezoidal shapes not only improve the torsional rigidity and bending strength of the ski itself, but the arched shape has a particularly noticeable effect in preventing snow buildup, and the trapezoidal shape improves vibration damping. This was revealed as a result of the test.

In addition, the arrangement of the roof-shaped protrusion according to the present invention is such that the fastener can be attached either at the front or back of the area, or at the front or rear, and its length and shape can be freely selected according to the required characteristics of the ski. It has the characteristic of being able to supply skis suitable for skiers depending on their skill level.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a ski according to the present invention. FIG. 2 is a perspective view showing the fitted state of the upper surface component of the ski and the roof-shaped protruding member. Figure 3, Figure 4, Figure 7, Figure 9
The figure is a sectional view illustrating a state in which the upper surface component of the ski according to the present invention is fitted and fixed to the roof-shaped protruding portion. Figure 5,
16 and 8 are perspective cross-sectional views of essential parts of the ski according to the present invention. FIG. 9 is a perspective view showing a fitted state between an upper surface component and a roof-shaped protruding member showing another embodiment of the present invention. FIG. 10 is a cross-sectional perspective view of a main part of the ski according to the embodiment shown in FIG. 11 and 12 are perspective cross-sectional views of essential parts of skis according to other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... Upper surface component of ski, 2... Removal part, 3...
...Top surface part, 4...Reinforcing member, 6-''...Roof-shaped protruding member, 6...Optional core material. Patent applicant Mizuno Co., Ltd. Representative Cotton Commissioner Kenji Mizuno Department 1 Figure 2 0 D U Procedural Amendment April 16, 1980 11F Indication of Item 1988 Patent Application No. 88210 2 Title of Invention Skating Board 3 Person Making Amendment Relationship with Case Patent Applicant 4 Amendment Date of order: Showa, month, day (Voluntary) 5 Subject of amendment ■ The scope of the claims is amended as follows: 1. Forming an arbitrarily shaped cutout in the ski upper surface component,
A roof-shaped protrusion formed on the top surface component is formed by filling and fixing a core material of an arbitrary material into a roof-shaped protrusion-shaped member made of a top surface member and a reinforcing member that are separately formed in the cut-out part. A ski board characterized by: 2. The cross section of the roof-shaped protruding member is chevron-shaped or arch-shaped. The ski according to claim 1, which has a trapezoidal shape or a trapezoidal shape. 3. The ski according to claim 1, wherein the optional core material is a synthetic resin foam material. 4. The ski according to claim 1, wherein the optional core material is metal fiber or other fiber. 5 The core material of any material is a patent fl:'j requesting range 1 in which a non-condensing mucus is interposed in a metal fiber or other deposit'.
Skis as described in section. 6. The ski according to claim 1, wherein the optional core material is a metal fiber or other fiber with non-coagulable powder interposed therein. 7”-surface configuration f9. ≦The cedar board according to claim 1, wherein the roof-shaped protrusion formed on the material is formed either at the front or rear of the cedar fastener attachment area, or at the front or rear. 2. Detailed explanation of the invention in the specification and brief explanation of the drawings 1.
Correct as follows. (1) Delete "keel-shaped" from lines 19 to 20 on page 2 of the specification. (2) Delete "The top is the center of the width of the rison" from lines 13 to 144 on page 5. (3) Delete "(core material, . . . sliding surface material)" from lines 6 to 7 on page 7. (4.) Correct to r5J '5 r5J on page 9, line 17. (5) Add ``Removed portion 2 of ski upper surface component 1'' next to ``According to the present invention'' on page 10, line 12. (6) In the same page 10, line 12, "of the protrusion" is corrected to "of the protrusion-shaped member 5." (7) Amend "any" on page 11, line 14 of the same to "of any interest."

Claims (1)

[Scope of Claims] (1) A roof shape in which a notch of an arbitrary shape is formed in the ski upper surface constituent member, and the upper surface member, reinforcing member, etc. are separately formed in the notch, and the top is at the center of the width of the upper surface member. A ski board characterized in that a roof-shaped protrusion is formed on the upper surface component by filling the protrusion-shaped member with a core material of an arbitrary material and fitting and fixing the core material. (2) The ski according to claim 1, wherein the cross section of the roof-shaped protruding member is chevron-shaped, arch-shaped, trapezoidal, or similar. (3) The ski according to claim 1, wherein the optional core material is made of synthetic resin foam. (4.) The ski according to claim 1, wherein the optional core material is a metal fiber or other fiber. (5) The ski board according to claim 1, wherein the optional core material is made of metal fibers or other fibers with non-condensing mucus interposed therein. (6) The ski according to claim 1, wherein the optional core material is made of metal fibers or other fibers with non-solidified powder interposed therein. (7) The roof-shaped protrusion formed on the upper surface component is formed at the front or rear of the ski binding attachment area, or at the front or rear of the ski binding attachment area. skis.