JP3012698U - Ski - Google Patents

Abstract

(57) [Summary] [Structure] In contrast to a core member in which reinforcing plates 2 and 2'are laminated on the upper and lower surfaces of a core 1 and side plates 3 are arranged on the side surfaces, the lower end does not reach the lower edge of the side plate. Reinforcing plate 2 with shell member 7 of depth
The shell member is arranged from the top to a part of the outer side surface of the side plate, and the depth of the shell member is such that skis are located at substantially intermediate positions c'and c "between the front and rear snow contact surfaces b'and b" and the boot center a '. It is approximately one-half from the upper surface to the lower end of the side plate, and gradually becomes shallower toward the front and rear ends of the ski, and gradually deeper toward the boot center, which requires torsional properties over the entire ski length. The function is exhibited from the part to be used, and the function is exhibited from the part requiring the flexibility.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This device has a high tossability in the center of the ski body, that is, in the boot center, enhances the flexibility as it gets closer to the top and tail, and can be applied directly to your feet against the impact from any part over the entire length of the ski. It relates to skis that were not transmitted.

[0002]

[Prior art]

 Skis that have been commonly used in the past can be classified into a sandwich structure, a box structure, and a caisson structure, based on their sectional structure.

Among them, the ski having a sandwich structure is, as shown in FIG. 3, a core material a, a reinforcing plate b such as FRP and the like are laminated in the vertical direction of the cross section, and the state is formed in a sandwitch shape. It is one of the oldest ski development history.

The ski having the sandwich structure exerts flexibility by the balance of tension and compression of various laminated materials used therein, and the ski strength is affected by the material used. Although it is given, it is basically a very flexible ski.

Further, the box-structured ski is a ski in which a core such as a core material a is covered from the outside so as to be housed inside a hollow box-shaped body c as shown in FIG. . Therefore, the ski with this box structure has a large strength against twisting because it has a structure that covers the entire circumference of the core, and as a result, so-called rebound and edging effect are high. It has become.

Further, a ski having a caisson structure is a ski having a core such as a core a covered from above by a shell d having an inverted U-shaped cross section as shown in FIG. Can be said to have a relatively short history. The ski having the caisson structure has basically the same performance as the ski having the box structure, since it has a deep side plate e that is almost perpendicular to the shell d and is in contact with the lower reinforcing plate. It is said that it is slightly inferior to the box structure ski in terms of suppleness.

[0007]

[Problems to be solved by the device]

 After all, skis with various structures having the above various performances will be selected according to the user's preference, but the edging effect on the undulating snow surface, rebound, suppleness, and torsion characteristics In fact, it is the performance that should be partially emitted over the entire length of the ski, and at the same time, the performance that should not occur in other parts. For example, the edging effect and the rebound have a great relationship with the operability of the skier when the skier is sliding, so they are mainly required for the boot center, and the suppleness corresponds to the snow surface shape. Therefore, it is mainly required in the front and rear direction of the ski, that is, in the shoulder part and the heel part, and the torsional property mainly corresponds to the twisting direction. It is required at the center, that is, at the boot center.

However, in the sandwich structure, flexibility is exerted over the entire length of the ski, which is suitable for beginners, but rebound and torsion are weak for advanced skiers, resulting in satisfaction. Was not obtained.

In addition, in the box structure and the caisson structure, the rebound and the torsion are both strong, so that an extremely advanced technique is required for a beginner to exert his or her own ability.

Therefore, there are advantages and disadvantages in all of the skis mentioned above, and the biggest problem is that, as a beginner's skill improves, he / she cannot use or use skis that he / she is accustomed to. There was a tendency to dislike it.

Japanese Unexamined Patent Publication (Kokai) No. 6-304285 discloses a ski in which the boot center has a caisson structure and the other has a sandwich structure. Of these, the caisson structure part has its lower end in contact with the lower surface edge. Therefore, the vibration or shock generated during skiing is transmitted to the feet through the caisson member.

Furthermore, according to Japanese Utility Model Laid-Open No. 5-58176, the shell member in the boot center has a structure that is too shallow, so that it is impossible to exhibit the required torsion in the boot center. Had.

[0013]

[Means for Solving the Problems]

 In order to solve the above problems, the ski according to the present invention has reinforcing plates made of FRP or aluminum laminated on the upper and lower surfaces of the core, and the sides made of synthetic resin on both sides in the longitudinal direction of the core. Synthetic resin gate-shaped surface material having a depth such that the lower end does not reach the lower edge of the side plate with respect to the core member on which the face plate is arranged In a ski with a shell structure arranged over the skis, the depth of the gate-shaped shell member is approximately two points from the uppermost surface of the ski to the lower end of the side plate, with the intermediate positions between the front and rear snow-contacting surfaces and the boots center being both. It is one of the parts, and it is formed gradually shallower toward the front and rear ends of the ski, and gradually deeper toward the boot center.

That is, as described above, the depth of the shell member is made deep at a portion requiring high torsion property, and it is formed so as not to require much torsion property but rather at a portion requiring high flex property. It was done.

[0015]

[Effect] Therefore, high torsion will be exhibited from the part that requires high torsion in the entire ski length, and high flex will be exhibited from the part that requires high flex. From the part where the intermediate function is to be exerted, the proper function is exerted.

[0016]

【Example】

 Next, an embodiment of the ski according to the present invention will be described with reference to FIG. 1. Reference numeral 1 is a core body made of wood or the like, 2 is a reinforcing plate disposed on the upper surface of the core body 1, Reference numeral 2'denotes a reinforcing plate disposed on the lower surface of the core body 1. The upper and lower reinforcing plates 2 and 2'are made of, for example, FRP or aluminum (metal) made of glass, Kevlar, carbon or alumina fiber.

Reference numeral 3 denotes side plates disposed on both side surfaces of the core body 1. The side plates 3 are made of ABS resin, phenol resin, polyamide elastomer or PBT polyester.

Reference numeral 4 denotes a spacer provided in the central portion of the lower surface of the lower reinforcing plate 2 ′, and 5 denotes lower surface edges provided on both sides of the reinforcing plate 2 ′ on both sides of the spacer 4. The lower surface edge 5 is made of a wear resistant material such as carbon steel and has an L-shaped cross section. Reference numeral 6 denotes a sliding face plate disposed on both ends thereof so as to expose a part of the lower surface edge 5, and the sliding face plate 6 is made of a material such as polyethylene resin.

Reference numeral 7 denotes a synthetic resin shell member formed to have a length substantially extending over the entire length of the ski. The shell member 7 is formed in a substantially gate-shaped cross section. That is, the shell member 7 has a flat portion in the center and side portions 8 bent downward on both side edges, and the depth of the shell member 7 formed by the side portions 8 is Even in the portion, the depth is set such that it does not reach the lower end edges of the side surface plates 3 disposed on both side surfaces of the core body 1 in the state where the core body 1 is disposed.

However, the depth of the shell member 7 has different portions in the longitudinal direction of the ski, and the intermediate positions c ′, c ″ between the boot center a ′ and the front and rear snow-contacting surfaces b ′, b ″. And both are approximately half from the top of the ski to the lower end of the side plate 3. The intermediate positions c ′ and c ″ are the positions where the load is applied most during the movement associated with skiing, and by setting the depth of the shell member 7 at this position to about half as described above, the torsional property is obtained. Also, the flexibility is exhibited at a rate of about 50%, which can be said to be an ideal value.

Then, the ski is gradually formed shallower toward the top and tail, and gradually deeper toward the center, and is formed deepest at the boot center a '. That is, in the boot center a ′, the lower end of the side portion 8 has a depth (length) that does not reach the lower surface edge 5. More specifically, the lower end of the side portion 8 of the shell member 7 is located at a position that does not reach the reinforcing plate 2 ′ on the lower surface, that is, from the lower surface of the core body 1 which is preferably on the upper surface of the lower reinforcing plate 2 ′, It is located at a height of about 3 mm, which is preferable in terms of buffering the impact on the ski body from the snow surface when sliding.

The material of the shell member 7 may be FRP, aluminum (metal) and / or synthetic resin plate of the same material as the upper and lower reinforcing plates 2 and 2 ′ and the side plate 3.

In the case of disposing the shell member 7, after the side plate 3 having a rectangular cross section is bonded to the core body 1, the shell member 7 after disposing the shell member 7 is provided. A part of the side plate 3 is three-dimensionally ground so that the side part 8 of the plate 7 is flush with the outer peripheral surface, and the shell member 7 is covered and bonded thereon.

[0024]

[Effect of device]

 As described above, according to the ski of the present invention, the reinforcing plates formed of FRP or aluminum are laminated on the upper and lower surfaces of the core body, and the side plates made of synthetic resin are formed on both side surfaces in the longitudinal direction of the core body. Of the core member with the bottom side of the side plate, the synthetic resin gate-shaped surface material with a depth that does not reach the lower edge of the side plate, that is, the shell member from the upper reinforcing plate to a part of the outer surface of the side plate. In a ski with a shell structure arranged, the depth of the gate-shaped shell member is approximately two minutes from the top of the ski to the lower end of the side plate at approximately the midpoints between the front and rear snow contact surfaces and the boot center. No. 1 of the above, and the depth is gradually reduced toward the front and rear ends of the ski, and gradually deeper toward the boot center, that is, the depth of the shell member is increased as described above. It is deeper in the part that requires high torsion, and it does not require much torsion, but is formed shallow in the part that requires high flex, so it is higher than the part that requires high torsion in the total ski length. It will exhibit torsional properties, and it will exhibit high flex properties from the parts that require high flex properties, and it will exhibit its own functions from the parts that exhibit intermediate functions. It has the effect of being able to

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a ski according to the present invention.

FIG. 2 is a cross-sectional view showing an embodiment of a ski according to the present invention, in which (a) is a boot center, (b) is a substantially intermediate position between the front and rear snow contact surfaces and the boot center, and (c) is a shoulder. Part and heel part.

FIG. 3 is a cross-sectional view of a conventional ski having a sandwich structure, in which (a) is a boot center, (b) is a substantially intermediate position between the front and rear snow-contacting surfaces and the boot center, and (c) is a shoulder portion and a heel. It is a department.

FIG. 4 is a cross-sectional view of a conventional ski having a box structure, of which (a) is a boot center, (b) is a substantially intermediate position between the front and rear snow-contacting surfaces and the boot center, and (c) is a shoulder portion and heel. It is a department.

FIG. 5 is a cross-sectional view of a conventional ski having a caisson structure, in which (a) is a boot center, (b) is a substantially intermediate position between the front and rear snow-contacting surfaces and the boot center, and (c) is a shoulder portion and a heel. It is a department.

[Explanation of symbols]

1 Core 2 Upper Reinforcement Plate 2'Lower Reinforcement Plate 3 Side Plate 4 Spacer 5 Lower Edge 6 Sliding Face Plate 7 Shell Member 8 Side of Shell Member a 'Boot Center b', b "Snow Contact Surface c ', c" Boot Near center position between the center and the front and back snow contact surfaces

Claims (1)

[Scope of utility model registration request] 1. A core member in which reinforcing plates made of FRP, aluminum or the like are laminated on the upper and lower surfaces of a core body, and side plates made of synthetic resin are arranged on both side surfaces in the longitudinal direction of the core body. Is a synthetic resin gate-type surface material having a depth that does not reach the lower end edge of the side plate, that is, a ski having a shell structure in which a shell member is arranged from the upper reinforcing plate to a part of the outer surface of the side plate, The depth of the gate-shaped shell member is approximately one-half from the top of the ski to the bottom of the side plate at approximately the middle position between the front and rear snow-contacting surfaces and the boot center. The ski is characterized by gradually becoming shallower toward the boot center and gradually deeper toward the boot center.