JP2652291B2 - Ski manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ski and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, as a main method of manufacturing a ski, as shown in FIG. 5 , each member for forming a ski is arranged in a predetermined size, and these are combined and housed in a ski forming mold. 2. Description of the Related Art A lamination bonding molding method formed by laminating and bonding with an adhesive at a time has become widespread. This molding method is shown in FIG.
As shown in (2), the upper mold and the lower mold are pressed and heated to form an adhesive. Therefore, each of the members housed in the mold is required to have high dimensional accuracy. Also, JP-A-3-212
According to No. 75, a step of forming in a mold such that a flange-like edge is formed on an upper cover ply of a ski, and a step of aligning a lower edge of the ski with the flange-like edge. A method of manufacturing a ski, comprising the steps of connecting an upper part and a lower part of a ski, and further trimming the flange-like edge to a final size after removing the ski from a mold. A method is also disclosed.

[0003]

In the ski as shown in FIG. 5 , at least the decorative plate 3 and the side member e are provided.
In addition, since the adhesive flows out from the joint end portion with the edge material 9 and adheres to the ski, it is necessary to remove the adhesive which has been removed from the mold and then cure the adhesive. If there is any deviation due to expansion and contraction, there is a problem of poor adhesion and water absorption. In the ski of JP-A-3-21275, in the step of pressing and heating with upper and lower molds,
Excess adhesive flows out from the joining edge between the flange-shaped edge and the lower edge of the ski that is aligned with the edge, and flows from the slight gap between the mold and the ski to the outside of the ski. Adheres and cures. Then, since it is necessary to remove the adhesive adhered after being taken out of the mold, there has been a problem that a time is required for a beautiful finishing process.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a ski made of a single material or a composite material of an arbitrary material, wherein the upper surface and the side surface correspond to the shape of the core material, and An upper surface component in which a flange-shaped portion larger than the finished size of the ski is integrally formed at the lower part of the ski, and a lower surface component which is a sliding surface material, an edge material and a sliding surface reinforcing material are formed, and the upper surface component is formed by a mold. This problem is solved by a method of manufacturing a ski in which a flange-like portion is formed at a lower portion of a side portion of a ski by integrally bonding the lower surface component and a core member and a bottom reinforcing material together. The mold used in the present invention is composed of an upper mold and a lower mold. The upper mold has a space for accommodating the upper surface component, the core material and the bottom reinforcing material, and a space into which excess adhesive flows into both sides. A mold provided with a part is used. It is natural that the lower mold is provided with a housing portion for housing the lower surface constituting member, but a space portion into which excess adhesive flows may be provided on both sides of the housing portion. Further, the upper surface constituting member is formed in advance in a shape corresponding to the shape of the core material. In addition, it is natural that an adhesive is used for bonding the constituent members.

[0005]

In the ski of the present invention, the flange-shaped portion is formed at the lower portion of the side surface of the upper surface component. It has the effect of squeezing. When manufacturing a ski, a flange-shaped part is formed at the lower part of the side surface of the upper surface component, and the flange-shaped part is formed to be larger than the finished dimension of the ski, and the excess adhesive which is accommodated in the mold and flows out at the time of molding is formed. When the agent is allowed to flow into the surplus adhesive inflow space of the mold and is taken out of the mold after the curing is completed, the surplus adhesive adheres to the surplus portion of the flange portion. Therefore, by cutting off the surplus portion of the flange to the finished size of the ski, the surplus adhesive adhered to the flange can be removed at the same time, so that post-molding processing is easy and beautiful, and the finished productivity is remarkably improved.

[0006]

Next, an embodiment of a method of manufacturing a ski according to the present invention using a ski molding die and an injection machine or a press machine will be described with reference to the drawings. First,
As shown in FIGS. 3 and 4, the ski molding die H used in the present invention includes an upper die 1 and a lower die 2, and the upper die 1 has an upper surface component 14, a core member 6, and a bottom surface. An accommodation portion 13A capable of accommodating the reinforcing material 7 and a surplus adhesive inflow space portion 11 are provided. The lower die 2 has a sliding surface material 10, an edge material 9, and a sliding surface reinforcing material 8.
A housing portion 13B capable of housing the lower surface constituting member A is provided.

Next, the lower surface component A having the finished size of the ski is formed by combining the sliding surface reinforcing member 8, the edge 9, and the sliding surface member 10. Next, the lower surface component A is accommodated in the lower surface component accommodating portion 13B of the lower mold 2 of the ski molding die H, and the bottom reinforcing material 7 and the core material 6 are provided on the upper surface thereof.
Is placed, and the upper surface constituting member 14 is placed on the core member 6. An adhesive 5 is applied between the members. Next, when the upper mold 1 is placed from above and pressurized and heated, a state shown in FIG.
At this time, the adhesive 5 applied to a required portion of each member is compressed, and the excess flows out from the end of the bonding portion, flows into the excess adhesive inflow space 11 of the upper mold 1, and becomes the excess adhesive 12. . When the excess adhesive 12 is removed from the mold after the curing is completed, the surplus adhesive 12 is attached to the bottom reinforcing material 7 of the ski and the flange 19 at the lower side of the ski. Next, when the both ends of the bottom reinforcing material 7 and the excess portion of the flange portion 19 are cut off to the finished size of the ski along the side surface of the edge 9 of the ski, the excess adhesive adhered to the flange portion 19 is also removed. The ski C having the flange 19 can be manufactured by removing the ski.

[0008]

Since the present invention has the above-described structure, at least a portion corresponding to the flange-like portion is formed by the flange-like portion formed at the lower portion of both or any one of the upper surface constituting member and the lower surface constituting member. The bonding area increases, the bonding strength increases, and the durability improves. Also, at the time of manufacture, a flange-shaped portion larger than the finished size of the ski is formed on the upper surface component, and excess adhesive flowing out during ski molding is allowed to flow into the excess adhesive accommodating space of the ski molding die. When the adhesive is removed from the mold after the bonding is completed, excess adhesive is attached to the flange-shaped portion. Therefore, by cutting off the surplus part of the flange to the finished dimensions of the ski, the surplus adhesive is also removed at the same time, so the finishing process is simplified,
Productivity is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a ski according to the present invention.

FIG. 2 is an enlarged sectional view taken along the line YY of FIG. 1;

FIG. 3 is an explanatory view of an embodiment showing a method of manufacturing a ski according to the present invention.

FIG. 4 is an explanatory view of an embodiment showing a method of manufacturing a ski according to the present invention.

FIG. 5 is an embodiment view showing a conventional ski manufacturing method.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 upper mold 2 lower mold 3 decorative board 4 upper surface reinforcing material 4A upper surface reinforcing material matrix 5 adhesive 6 core material 7 bottom reinforcing material 8 sliding surface reinforcing material 9 edge material 10 sliding surface material 11 surplus adhesive accommodating space 12 Excess adhesive 13A Housing 13B Housing 14 Upper surface component 19 Flange portion A Lower surface component C Ski plate D Upper surface E Side surface F Lower surface H Mold for ski plate e Side material

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takashi Tonomura 3788-8 Takada, Yoro-cho, Yoro-gun, Gifu Prefecture Examiner in Yoro Plant, Mizuno Co., Ltd. Hiroshi Kojima (56) References JP-A-3-176089 (JP, A)

Claims (1)

(57) [Claims] 1. A lower surface component constituting a lower surface of a ski is accommodated in a lower mold, and a bottom reinforcing material having a width wider than a width of the lower component accommodating portion of the lower mold is placed on the lower surface component. Arranging a core material thereon, and making an upper surface portion and a side surface portion of a plate constituting an upper surface of a ski made of a single material or a composite material of any material correspond to the shape of the core material, and the lower part of the side surface portion, placing on top of the core material a large flange portion than the finished dimension of the ski to form the upper surface component member integrally formed with a bottom reinforcing member and the core member of the wide A step of covering an upper mold having a housing portion for accommodating the upper surface component, and a flange-shaped portion and a space for receiving excess adhesive on both sides of the housing portion over the upper surface component, and pressurizing and heating the upper and lower molds After curing, it was released from the mold, and was formed by the bottom reinforcing material and the flange-shaped portion. A method of manufacturing a ski, comprising the steps of: cutting off and finishing the residue while leaving a slight protrusion at the lower portion of the side surface.