PATENTED TECHNOLOGY

●Title of invention

A ski

●Scope of Claim

【claim 1】Shaping the side curve on a ski with the narrowest width on the center and the largest width on the tip and the tail. There is a biggest gap between a ski and the ground in the middle of two contact points. The contact points are positioned vertical in the middle of a horizontal middle of a ski. The inflection point on the tip is placed 40 mm close to the tip of a ski compared to the contact point when being flat on the floor, allowing the contact point to move to the point where a ski width is wider when being edged.

【claim 2】Shaping the side curve on a ski with the narrowest width on the center and the largest width on the tip and the tail. There is a biggest gap between a ski and the ground in the middle of two contact points. The contact points are positioned vertical in the middle of a horizontal middle of a ski. The inflection point on the tail is placed 40 mm close to the tail of a ski compared to the contact point when being flat on the floor, allowing the contact point to move to the point where a ski width is wider when being edged.

●Industrial applicability

The invention enables a skier to control an arc of a turn easily.

●Effect of　the Invention

Shaping the side curve on a ski with the narrowest width on the center and the largest width on the tip and the tail. There is a biggest gap between a ski and the ground in the middle of two contact points. The contact points are positioned vertical in the middle of a horizontal middle of a ski. The inflection point on the tip is placed 40 mm close to the tip of a ski compared to the contact point when being flat on the floor, allowing the contact point to move to the point where a ski width is wider when being edged. 　Shaping the side curve on a ski with the narrowest width on the center and the largest width on the tip and the tail. There is a biggest gap between a ski and the ground in the middle of two contact points. The contact points are positioned vertical in the middle of a horizontal middle of a ski. The inflection point on the tail is placed 40 mm close to the tail of a ski compared to the contact point when being flat on the floor, allowing the contact point to move to the point where a ski width is wider when being edged. All of the above features makes the contact point to move to the point where a width of a ski is the widest, allowing a smaller turn which permits easier control of a turn, The followings are also the result of them.

1.Quicker downhill turns by handling the initiation of a turn nimbly.
2.Quicker introduction when making a turn, allowing deeper edging and easier control of your inner leg.
3.Less side slips when edging on a steep surface, making it easier to control the speed.
4.Wider area of a ski that touches the snow surface, allowing higher stability. This stability works just like that of longer skis.

●Title of invention

A plate for a ski

●Scope of Claim

Shaping the plate made of a synthetic resin that covers the upper side of a ski at the binding attachment point into 10～20mm. Also, almost all of the surface area of the top binging point and the heel binding point are shaped into zigzag.

●Industrial applicability

A ski plate which absorb the vibration and which reduces the vertical deflection of a ski.

●Effect of the Invention

The zigzag part of a plate fits into the deflection of a ski. Also, the height of the plate makes it easier to hold on edge and absorbs the vibration when skiing.

●Title of invention

A ski

●Scope of Claim

Reinforcement plates are placed on the upper and lower side of the core material with sidewalls on both sides in the sandwich structure. The shell covers up the core from upper side. At the binding attachment point, it reaches up nearly to the bottom edge. At the shoulder and the heel, it doesn’t have much thickness, and in the middle of between binding attachment point, the shoulder, and the heel, it has about the half of thickness compared to the previous one.

●Industrial applicability

A ski manufacturing technology with our original sandwich construction, box construction and channel construction.

●Effect of　the Invention

By raising the side of the shells at the binding attachment point, it builds more strength on foot. It allows edging effect, torsion, and proper rebounding. Also, it brings more flexibility on the shoulder and the heel.