JPS6161824B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a ski in which an upper surface constituting member of the ski is formed with an upper surface protrusion of an arbitrary shape.

(Prior Art) As shown in Fig. 19, recent skis are composed of a core material 1, a reinforcing member 2, and an upper and lower surface material 3, and desired marks and designs are printed on the upper surface material by screen printing. However, if the ski gets scratched due to contact or edges during use and is frequently used,
It has the disadvantage that marks and designs printed on the top material disappear or become unrecognizable in a relatively short period of time.

(Problems to be Solved by the Invention) For this reason, in the past, skis were known in which a member called a top edge was adhered to both sides of the upper surface of the ski to prevent scratches on the design, but this had the disadvantage that it easily peeled off. As shown in FIG. 20, an upper edge protection tape 5 has also been devised in which adhesive is applied to a thin plastic plate.
When adhering to the ski side cut, it is difficult and time-consuming to adhere to the side cut shape of the ski, and most of the adhesives used in the top protective tape are double-sided adhesive tapes, so it is difficult to peel them off. Although it has strong strength, it has a weak shear strength, so it has the disadvantage that it can peel or come off due to shearing force caused by impact stress etc. generated during sliding.

(Means for Solving the Problems) The present invention improves these conventional drawbacks, is easy to manufacture, is inexpensive, and has characteristics such as bending stiffness, torsional stiffness, and vibration damping that are essential for skis. Our goal is to provide skis that can be used freely.

(Structure of the Invention) An embodiment of the present invention will be described based on the drawings. As shown in FIGS. 1 to 10, desired locations in the longitudinal direction of the upper surface 6a of the ski core material, excluding the ski fastener attachment region, will be described. , a protrusion 7 for protruding the upper surface component.
By forming a protruding shape 10 on the upper surface component 8 and integrating it with the other ski component members 8 and 9,
It is a ski characterized by the formation of.

Note that the means for forming the protrusion 7 for protruding the upper surface component member (hereinafter simply abbreviated as the protrusion) on the upper surface 6a of the ski core material can be formed by cutting the ski core material 6 ; Furthermore, when manufacturing the ski inner core 6 using foamed synthetic resin, the mold itself can be processed to form the protrusion, and then formed by injection molding. In addition, the same shape as the conventional ski core material is molded,
It can also be formed using a protrusion member made of any material separately molded at a desired location, or when the protrusion is formed by cutting as described above, the protrusion formed at the edge can be formed by cutting. A protruding part member 7a is provided, and the central part is made of a separately molded arbitrary material.
It may also be a protrusion with a . Furthermore, even when the protrusions are integrally formed with foamed synthetic resin, it is also possible to use a separately molded protrusion member 7a made of an arbitrary material on either the edge or the center protrusion. Further, in the present invention, the protrusions formed on the ski core 6 may be located only at the edge and/or the center of the ski.

(Effects of the Invention) As described above, in the present invention, by forming the protrusion 7 at a desired position on the edge or the center of the upper surface 6a of the ski core material, or between the edge and the center,
The upper surface component 8 is formed with a protruding shape 10, and the ski core 6 may be made of a known wooden core, a foamed synthetic resin core, a foamed light alloy core, or other core material alone or They can be used in combination, and it is also possible to use them by joining side members. Also, a protrusion member 7a made of an arbitrary material is separately molded on the upper surface of the ski core material 6.
may be installed and integrated. In that case, the protrusion member 7a may be a prepreg sheet made of optional reinforcing fibers or a prepreg sheet made of optional reinforcing fibers as a base material.
The advantage of being able to reuse conventional ski component parts is that you can arbitrarily select FRP boards, rubber sheets, metal boards, plastic boards, wood, foam, or other materials with the same properties as these. There is.

Further, the upper surface component 8 used in the present invention includes:
You can use ABS resin, polyethylene resin, or other thermoplastic synthetic resin sheet materials alone, or
A laminate of these thermoplastic synthetic resin sheet materials and prepreg, stampable sheets, etc. can be used, or a prepreg sheet, etc. can be used alone.
By using it in combination with 6 , the protrusion 7
Since it is hard, it is well clamped during pressurization in the mold, and the upper surface component 8 expands due to heating and forms an uneven shape along the mold, resulting in good moldability. The shape of 10 comes out accurately, which not only improves the yield of the product but also improves the appearance of the finished ski. In addition, even if the upper surface component 8 is made of laminated metal plates or the like other than the above, if the protrusion 7 of the ski core material 6 is made of a material with hardness and high strength, the upper surface component 8 can be attached relatively easily. A protruding shape 10 can be formed.

For reference, a part of the manufacturing process of the ski according to the present invention is shown in FIGS. Incorporate the lower surface component 9 into 11,
Next, after placing the ski core material 6 and placing the upper surface component 8, a molding upper mold 13 having a notch 12 is placed at a position that matches the protrusion 7 formed on the upper surface of the ski core material. The protrusion 7 formed on the upper surface of the ski core material and the upper mold 1 are heated under pressure.
3, the protruding shape 10 can be integrally formed on the upper surface component 8 at the same time.

In the ski of the present invention, since the upper surface protrusion 10 is integrally molded with the upper surface component 8, the upper surface protrusion 10 does not peel off during use, unlike conventional skis, and is extremely durable. This also prevents scratches on the design itself printed on the upper surface component, resulting in extremely good durability.

In addition, in the present invention, unlike conventional upper surface protective tapes, a protrusion 7 is formed on the upper surface 6a of the ski core material in order to form the upper surface protrusion 10, so that this protrusion 7 serves as a kind of reinforcement. Since it acts as a rib or stiffener, it has the effect of increasing the bending and torsional rigidity of the ski itself.

In addition, in the present invention, a protrusion member 7a made of an arbitrary material is separately molded on the upper surface 6a of the ski inner core material.
Therefore, for example, if a carbon fiber-based prepreg or CFRP board is used as the protrusion member 7a, the bending rigidity and torsional rigidity of the ski itself can be improved, and by using a rubber sheet, A ski with soft rigidity and excellent vibration damping properties can be obtained.

In addition, since the upper surface protrusion 10 also has the effect of a top edge, the ski can be made at a low cost and has the effect of a top edge.

In addition, as another embodiment of the present invention, as shown in FIGS. 4 to 17, by appropriately changing the shape and combination of the upper surface protrusion 10, various characteristics of the ski can be improved, unlike a conventional planar ski. This makes it possible to make the skis different, significantly increasing the degree of freedom in ski design. Then, the upper surface protruding shape 1 is placed on the desired both side edges and the center of the upper surface component.
By providing 0, it is possible to protect marks, designs, etc. made in the recessed portion of the upper surface component.

As shown in FIGS. 4 and 6, if the upper surface protruding shape 10 formed in the center is interrupted,
The bending of the interrupted part becomes better and rotational performance is improved.

As shown in FIGS. 5 and 8, the upper surface protruding type 10
By providing these at desired side edges and near the shovel portion, there is an effect of increasing the rigidity of the shovel portion and improving the vibration damping properties of the shovel portion.
In addition, as shown in FIG. 7, by providing the upper surface protrusion 10 at the desired side edges and at the center part shorter than these, the torsional rigidity is strong, but the bending rigidity can be made soft, making the ski suitable for general slope skiers. Can be supplied.

In addition, skis in which all or part of the upper surface protrusion 10 is formed into a rectangular, chevron, arch, trapezoid, or similar shape in cross section can also be implemented. As mentioned above, the ski core 6 formed with the above-mentioned core material includes a wooden core material, a foamed synthetic resin core material, a foamed light alloy core material,
Other core materials can be used alone or in combination.

Also, when using the protrusion member 7a made of a separately molded arbitrary material, if a member with high rigidity is used as described above, the rigidity of the ski itself will be significantly improved, making the ski suitable for advanced skiers, and conversely, the rigidity will increase. By using components that are not too expensive, the ski itself becomes flexible and suitable for beginners. Further, as shown in FIG. 17, both side edges of the ski core material 6 are molded at the same time as the core material, and the center part is formed separately and formed with a protrusion member 7 made of an arbitrary material.
If wood or foam is used for a, the wood or foam has the effect of absorbing and attenuating the vibrations that occur when skiing, resulting in a ski with good maneuverability.

Furthermore, the top protruding type 10 can have both side edges low and the center part high, or conversely (not shown) can have both side edges high and the center part low, or can both have the same height. By making the skis higher and lower at the rear, or by making the inside edges of the skis higher than the outside edges, you can prevent the skis from crossing over each other while skiing. Furthermore, if a highly rigid material is used for the protrusion member 7a interposed on the upper surface protrusion 10 of the inner edge, the bending rigidity of the inner side will be increased, so that effective edging during sliding can be achieved. .

In short, the height and size of the upper surface protrusions 10 can be freely determined, and the upper surface protrusions 10 may be provided all around the edge of the upper surface component, or only on the edges, and the number and arrangement of the upper surface protrusions 10 may be arbitrarily determined. It can be implemented selectively.

As described above, the ski of the present invention has good productivity, improved durability of the marks and design made on the upper surface member, and has different characteristics such as flexibility, torsional rigidity, and vibration damping performance, and different appearance. One of the features is that you can freely design the skis.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional perspective view of a main part showing the core of a ski according to the present invention. 2 and 3 are cross-sectional perspective views of essential parts showing the manufacturing process of the ski of the present invention. 4 to 8 are plan views showing embodiments of the ski of the present invention. FIG. 9 is a cross-sectional perspective view showing a section AA in FIG. 7. FIG. 10 is a cross-sectional perspective view showing a section BB in FIG. 7. FIG. 11, FIG. 12, and FIG. 15 are plan views showing other embodiments. FIG. 13 is a cross-sectional perspective view showing the section CC in FIG. 11. Figure 14 shows the first
FIG. 2 is a cross-sectional perspective view showing the section DD in FIG. 2; FIG. 16 is a cross-sectional perspective view showing a section EE in FIG. 15. FIG. 17 is a cross-sectional perspective view of a main part showing still another embodiment. FIG. 18 is a perspective view showing a conventional ski. FIG. 19 is a cross-sectional perspective view of the same essential part. FIG. 20 is a cross-sectional perspective view of a main part of a ski to which a conventional upper surface protective tape is attached. 6 ...Ski inner core material, 6a... Upper surface of ski inner core material, 7... Protrusion part, 7a... Member for protrusion part, 8...
...Top surface component, 9...Bottom surface component, 10...
Projection type, 11... Molding mold, 12... Notch, 13
...Molding upper mold.

Claims (1)

[Scope of Claims] 1. A protrusion for protruding the upper surface component is formed at a desired location in the longitudinal direction of the upper surface of the ski core material excluding the ski fastener attachment region, and is integrally bonded with the upper surface component and the lower surface component. A ski characterized in that the upper surface component is formed with a protrusion shape corresponding to the shape of the upper surface component protrusion. 2. The ski according to claim 1, wherein the protrusion for protruding the upper surface component is formed by cutting a core material of the ski. 3. Claim 1, characterized in that the projection for projecting the upper surface component is integrally formed at the same time when the ski core material is molded from a foamed synthetic resin.
Skis listed in section. 4. The ski according to claim 1, wherein the protrusion for protruding the upper surface component is formed by integrally attaching a protrusion member made of an optional material separately molded to the ski inner core material. 5. Claims characterized in that the protrusion for protruding the upper surface component is formed from a part formed by cutting the core material of the ski and a part integrally fitted with a protrusion member made of an arbitrary material. The ski according to paragraph 1. 6. The protruding part for protruding the upper surface component is formed from a part that is integrally molded at the same time when the ski core material is molded from foamed synthetic resin, and a part that is integrated with a protruding member made of an arbitrary material. The ski according to claim 1, characterized in that: 7. The ski according to any one of claims 1 to 6, wherein the projection for projecting the upper surface component is formed at a desired edge of the upper surface of the ski inner core material. 8. The ski according to any one of claims 1 to 7, wherein the projection for projecting the upper surface component is formed at the center of the upper surface of the ski inner core. 9. The ski according to any one of claims 1 to 8, wherein the projections for projecting the upper surface component are formed at desired edges and at the center of the upper surface of the ski inner core. 10. According to any one of claims 1 to 9, the protrusion for protruding the upper surface component has a cross section of a rectangle, a chevron, an arch, a trapezoid, a combination thereof, or a similar shape. Skis listed.