JPH0448474B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ski in which an upper surface protrusion of an arbitrary shape is formed on the upper surface member of the ski, and a method for manufacturing the same.

As shown in Figure 1, recent skis are composed of a core material 1, a reinforcing member 2, and upper and lower surface materials 3, and a desired design is applied to the upper and lower surface materials by screen printing. The inside of the top material is scratched by contact with skis or edges, and if used frequently, the design printed on the top material will disappear or become unrecognizable in a relatively short period of time.

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 damage to the design, but this had the drawback that it easily peeled off. As shown in FIG. 2, an upper edge protective tape 5 made of a thin plastic plate with adhesive attached is also considered;
When adhering to the protective tape, it is difficult and time-consuming to follow the shape of the side cut of the ski, and most of the adhesives used in protective tape are double-sided adhesive tapes, so the peel strength is low. Although it is strong, it has a weak shear strength, so it has the disadvantage that it can peel or come off due to shear force caused by impact stress etc. generated during sliding.

The present invention aims to improve these conventional drawbacks and provide a ski that is easy to manufacture and inexpensive, and that can freely achieve the characteristics essential for skis such as bending rigidity, torsional rigidity, and vibration damping performance. be.

One embodiment of the present invention will be described based on the drawings. As shown in FIGS. 3 to 6, a lower surface component 7, a core material 8, and a supply member 9 are placed in a ski-shaped lower mold 6. , when assembling ski components such as the upper surface member 10, the front and rear edges 11a and the central portion 1 of the ski excluding the binding attachment area of the upper surface member 10.
The upper surface member protruding member 1 is placed at an arbitrary position on the lower part of the upper surface member 1b.
2 is memorized, the upper surface member 10 is placed, and the upper mold 14 provided with the recessed part for forming the protrusion is placed on the upper surface member 10, and then the molds 6 and 14 are pressurized. , the front and rear edges 11d of the ski, excluding the binding attachment area of the ski top member 10, and the central part 1
This method of manufacturing a ski 16 is characterized in that the upper surface protrusion 15 is formed at an arbitrary position on the ski 1b and is integrally adhesively molded.

Although only one top plate of the top member 10 is shown in the drawings, the top plate may be constructed by combining the top plate and a PiriBreg sheet, an FRP board, a metal plate, or the like.

As described above, in the present invention, when a ski component is assembled into a mold, the upper surface member protrusion is attached to the lower part of the front and rear edges and the center of the ski, excluding the fastener attachment area of the upper surface member 10, at an arbitrary position. The upper surface member protrusion member 12 may be a prepreg sheet made of optional reinforcing fibers or an FRP sheet made of optional reinforcing fibers.
Since you can arbitrarily select a board, a rubber sheet, a metal board, a plastic board, wood, foam, or any other material with the same properties as these, there is an advantage that you can reuse the ski components that have been used in the past. .

Further, as the upper surface member 10, ABS resin, polyethylene resin, or other thermoplastic synthetic resin sheet material may be used alone, or as shown in FIG. 14, these thermoplastic synthetic resin sheet materials may be combined with prepreg, stampable sheet, etc. It is possible to use a laminated material or to use a prepreg, a stambable sheet, etc. alone, so by pressing and heating the mold, the upper surface member 10 stretches and forms an uneven shape along the shape of the upper mold. is produced, resulting in good moldability.

In addition, as an embodiment of the present invention, when a prepreg sheet is used for the upper surface member protruding member 12, the tackiness (adhesiveness) of the prepreg sheet itself allows for reliable attachment without special temporary fixing in the mold. Since it can be placed in the same position and does not move due to pressure, workability is extremely good and product yield is improved.

In addition, in the ski of the present invention, the upper surface protrusion 1 is formed at any position on the front and rear edges and the center of the ski, excluding the fastener attachment area of the upper surface member 10, at the same time as the molding.
5 are integrally molded at the same time, unlike conventional adhesives, the upper surface protrusion 15 does not peel off during use and has very good durability.
In addition, the design printed on the top member is prevented from being scratched, resulting in extremely good durability.

In addition, in the present invention, unlike conventional upper surface protective tapes, the upper surface protrusion 15 forms a part of the structural member of the ski. By using a plate or a prepreg sheet, the rigidity of the ski itself can be increased, and the torsional rigidity can also be improved.

In addition, since the upper surface protrusion 15 also has the effect of a top edge, the ski is inexpensive and has the effect of a top edge.

In addition, as another embodiment of the present invention, as shown in FIGS. 4 to 8, by appropriately changing the shape and combination of the upper surface protrusions, various characteristics of the ski can be improved, unlike the conventional planar ski. This makes it possible to make the skis different, significantly increasing the degree of freedom in ski design. For example, as shown in FIG.
By providing this, it is possible to protect the design etc. on the upper surface member, and also to protect the upper surface member protruding member 12 from a prepreg sheet made of carbon graphite fiber or other reinforcing fibers, an FRP board, a metal plate or other tough material. By using this, as mentioned above, the rigidity of the ski itself can be increased, and the torsional rigidity is also improved. In addition, if the upper surface protrusion 15 formed in the center part is interrupted as shown in the figure, the bending of this part will be improved and the rotatability will be improved.

As shown in FIG. 5, by providing the upper surface protrusions 15 at the desired front and rear edges of the upper surface member of the ski, excluding the area where the fastener is attached, and near the central portion of the shovel, the rigidity of the shovel portion is increased and This has the effect of improving the vibration damping properties of the parts.

As shown in FIG. 6, when forming the upper surface protrusion 15 at both desired front and rear edges and the center part of the upper surface member excluding the fastener area, the upper surface member protrusion for forming the upper surface protrusion 15 is used. If a highly rigid member is used for the member 12, the rigidity of the entire ski will be significantly improved, making the ski suitable for advanced skiers.On the other hand, if a less rigid member is used, the ski itself will become flexible, making it suitable for beginners. This is a ski for those who want to ski. 7th
As shown in FIG. 8 and FIG. 13, the upper surface protrusion 15
Skis in which the central part is shaped into a chevron, arch, trapezoid, or similar shape can also be implemented, and the protruding upper surface member may be made of carbon graphite fiber, silicon carbide fiber, or any other reinforcing fiber. prepreg sheet
FRP board may be used, or wood or foam may also be used. In the former case, the stiffness and torsional rigidity of the ski itself are significantly improved, and in the latter case, the stiffness is improved and the wood or foam has the effect of absorbing and attenuating the vibrations that occur when skiing, resulting in good maneuverability. It becomes a ski board.

As shown in FIG. 15, the upper surface protrusion 15 can be made so that both edges are lower than the center, or conversely, both edges are made higher than the center, or both sides are at the same height. It is possible to make the front part high and the rear part low, and in addition to providing upper surface protrusions other than those shown in the drawings, the number and arrangement of the upper surface protrusions can be freely determined.

As described above, the present invention provides a ski design that has good productivity, improved durability of the design applied to the upper surface member, and has different characteristics such as flexibility, torsional rigidity, and vibration damping performance, as well as different appearances. It has the characteristic that it can be done freely.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional perspective view of the main parts of a conventional ski. FIG. 2 is a cross-sectional perspective view of a main part of a ski with a conventional upper surface protective tape attached. FIG. 3 is a cross-sectional perspective view of essential parts showing a method of manufacturing a ski according to the present invention. FIG. 4, FIG. 5, FIG. 6, FIG. 7, and FIG. 8 are plan views showing embodiments of skis according to the present invention.
FIG. 9 is a cross-sectional perspective view showing a section AA and a section C-C in FIG. 4. FIG. 10 is a cross-sectional and plane perspective view showing the section BB in FIG. 4. Figure 11 shows D in Figure 7.
- A cross-sectional perspective view showing the D portion. FIG. 12 is a cross-sectional perspective view showing the section EE in FIG. 8. FIG. 13 is a plan view showing another embodiment. FIG. 14 is a cross-sectional perspective view showing the section FF in FIG. 13. FIG. 15 is a cross-sectional perspective view of a main part showing still another embodiment. DESCRIPTION OF SYMBOLS 1... Core material, 2... Reinforcing member, 3... Top and bottom surface materials, 4... Both side edges, 5... Top protective tape, 6
... lower mold, 7 ... lower surface component, 8 ... core material, 9 ... reinforcing member, 10 ... upper surface member, 11a
. . . both side edges, 11b . . . central portion, 12 . . . upper surface member protrusion member, 14 . . . upper mold, 15 . . . upper surface protrusion, 16 .

Claims (1)

[Scope of Claims] 1. By arranging the upper surface member protruding member of any material at the front and rear edges of the ski upper surface member excluding the binding attachment area and at the lower part of the central portion at any position, the edge of the upper surface member and a ski, characterized in that a top protrusion is formed at an arbitrary position in the center. 2. When assembling ski components such as the lower surface component, core material, reinforcing member, and upper surface member into a mold having a ski shape, the front and rear edges and center of the ski, excluding the binding attachment area of the upper surface member, shall be removed. After arranging the upper surface protruding member of any material at the lower part of the part at an arbitrary position, placing the upper surface member and placing the upper mold provided with the recessed part for forming the protruding part on the upper surface member. By pressurizing the mold, upper surface protrusions are formed at arbitrary positions on the front and rear edges and the center of the ski, excluding the binding attachment area of the upper surface member, and are integrally adhesively molded. A method of manufacturing skis.