KR100590997B1 - Human Powered Water Ski - Google Patents

Abstract

The present invention relates to skiing for water leisure sports, and a pair of plates made to float on the surface of the user by connecting the poles (plate) of the same side in the form of left and right symmetrically, respectively, the user's legs, plates and poles This stable triangular structure helps to maintain a balance between stops and movements on the surface of the water, and forms a longitudinal waterway at the bottom of the plate to form a number of swimming legs in line. By maximizing the propulsion that the user can gain by moving the left and right plates back and forth. Therefore, the equipment of the present invention is a device having a feature that anyone can easily enjoy the sense of speed or more running on the ground and balanced on the water surface with only human power without traction equipment.

Water Skiing, Plate, Buoyancy, Stable Equilibrium, Swimming Area, Leisure Sports

Description

Human Powered Water Ski

1 is an embodiment of using the equipment of the present invention above the water surface.

Figure 2 is a three-dimensional stereoscopic view of the left plate of the equipment.

3A to 3D are views of the left plate viewed from above, side, bottom and front, respectively.

4A and 4B are views showing a structure in which a pole is coupled to the rear of the left plate and the movement of the pole.

5A and 5B are views showing the structure of the swimming pool coupled to the bottom by cutting the side of the left plate and an enlarged view of the incision site.

Figures 6A-6C is an operational state showing the movement of the swimming pool when the equipment of the present invention moves on the water surface.

* Description of the symbols for the main parts of the drawings *

1: plate 2: pole

3: foothold

4: swimming leg 4a: moving range

5: stopper

6: pin joint

The present invention relates to skis for water leisure sports, and to skis that can be balanced and moved on the water surface with only human force without towing equipment.

Skiing on the snow is driven by gravity on the slope, the plate is used to adjust the direction without falling into the snow, and the pole is used to balance the movement.

Water skiing on the surface of the water is driven by the traction of the motorboat, but it cannot adjust its direction of movement. In addition, the use of motorboats continues to incur additional costs for sports, and the risk of accidents is high and places are limited.

Inventions have been made for devices that can move on the surface with human power alone. However, devices used in a standing position, such as skiing, have not realized successful movements due to balance problems. This is because a person's movement on a rocky surface is not provided with sufficient support and friction as when moving on the ground. When standing on water using a pair of plates made to float, the support for a person to avoid drowning can be derived from the buoyancy of the plate against the surface, but each plate has a high center of gravity Since it will be capsize even in small swings like a loaded ship, stable support is impossible and the user has come to stand balanced without slipping back and forth in the situation where the friction between the surface and the plate is insufficient. You must concentrate. Ice skates only allow forward and backward movement on the ice, so mastery is possible by the user's efforts. However, the current non-powered water skiing was so difficult to balance that it was not possible to enjoy the sense of speed and simply watched on the surface. It was a walk level skill.

Deriving the problem by analyzing the conventional technology by type is as follows.

First, when the ankle is fixed to prevent the plate from overturning, the movement of the ankle gives an unnatural and stuffy feeling and can cause drowning. In the case of widening the width of the plate for the same purpose, the left and right plates rub against each other and are damaged.

Second, in order to prevent overturning of the plate and shaking of the user's center of gravity at the same time, if the height of the plate is increased and the position of the user's foot is excessively lowered below the surface of the water, a balanced state can be effectively achieved, but the water resistance is large, which gives a sense of speed. can not do it.

Third, when attaching a fin ('flat' or 'a' shaped) to the exposed lower or side of the plate in the way of gaining propulsion, the distance between the web and the plate to pull the plate away from the water is too long Not only does it cause unnecessary waste of momentum, but it is also likely that the webbed hooks onto the ground (or counterpart) underwater and is damaged. In addition, the propulsion is reduced compared to the force required by the streamline of water being pushed by the fins.

Fourth, if you get the propulsion by stirring the pole like a paddle, the user is very tired.

The present invention has been made in view of the above problems, regardless of the place (sea, river, valley, swimming pool, etc.) can enjoy water skiing without towing equipment and anyone can easily and stably balance on the water (stable equilibrium) The task is to feel a sense of speed at or above the run level.

The detailed tasks are as follows.

First, it should be possible to narrow the plate and reduce its height to achieve a streamline shape and to balance the surface with the ankle free.

Secondly, the propulsion of water skiing must be derived from the movement of the legs and must be sufficient to move even with short strides.

Third, the main motor parts that generate propulsion must be protected from external collisions.

The non-powered water skiing device of the present invention is separated from the conventional ski structure for stable equilibrium at the surface, and the plate and the pole are integrally connected. The embodiment of the water ski shown in FIG. 1 shows that the user's center of gravity is supported by a solid triangular structure in all directions.

The water ski is formed on the top of the plate (1) (deck) as shown in Figure 2 so that the user can step on the center of the foot (3) is formed and the stern (stern) of the plate pole (2) ) Is connected. A waterway is formed in the lower part of the plate, and a plurality of swimming pools 4 are connected along the inner center line.

Hereinafter, the detailed configuration and operation of the present invention will be described with the drawings for the left plate.

As shown in FIG. 3A, a deck 3 is formed at the center of the plate 1 having a buoyancy sufficient to support the weight of the user so that the user can step on and stand on the pole at the stern. (2) has a connection structure.

The connection method of the plate and the pole is a pin joint 6 method as shown in FIG. 3B (shown in enlarged view in FIG. 4A). Thus, as shown in FIG. Only circular motion with respect to the vertical plane including the longitudinal centerline of 1) is allowed and if the user grasps the handle 2a and moves the pole 2 side to side (with respect to the advancing direction), the plate 1 also tilts in the same direction. do. This structure provides the user with control to prevent the capsize of the plate due to sleep fluctuations and thus the drowning of the feet, and also serves as a cane to prevent the user from slipping back and forth.

As shown in FIG. 3C, a plurality of swimming pools 4 are connected to the lower portion of the plate in the longitudinal direction, and a stop plate 5 is positioned in front of each swimming pool 4. A front view of the plate is shown in FIG. 3D, showing that a longitudinal waterway was formed in the center of the bottom of the plate 1 and the swimming pool 4 was connected therein. This structure not only protects the swimming leg from external collisions, but also makes it possible to control the flow of water in a straight line to efficiently obtain propulsion.

The relationship between the swimming leg and the stopper is shown in FIG. 5A with a partial cutaway of the side of the plate and in FIG. 5B showing an enlarged view, where the range 4a in which the pool 4 can move is It is limited to a maximum of 90 degrees by the stop plate 5.

The principle of the user speeding on the water surface using the equipment of the present invention is illustrated in FIGS. 6A-6C. When the user pushes the plate forward, as shown in FIG. 6A, the swimming pools 4 at the bottom of the plate fold backward and pass water along the waterway, and then push the plate backwards to resist water The swimming pools 4 are unfolded by the water, and the water is trapped in the waterway at the bottom of the plate by stopping by the stop plate 5 as shown in FIG. 6C through the state of FIG. 6B. Send to. In this case, the center of gravity of the user is accelerated forward by the relative propulsion force to the momentum of the flow generated, and the continuous propulsion force can be obtained by shifting the left and right plates back and forth.

By using the equipment of the present invention, regardless of the place (sea, river, valley, swimming pool, etc.) can enjoy water skiing without towing equipment, anyone can easily stably balance on the water (stable equilibrium) as well as the ground with strong driving force You can feel the speed at or above the run level.

Claims (5)

delete delete A pair of buoyant plates are symmetrically connected to each other and are integrally connected with poles on the same side, and a scaffold is formed at the center of the upper part of the plate and a plurality of swimming pools are connected in the longitudinal direction to the lower part of the plate. In the water walking mechanism, characterized in that provided with a stop plate in front of the swimming pool, Non-powered water skis, characterized in that the poles are connected to the stern at the top of the plate by pin joints. delete delete

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