KR100596913B1 - Portable type of human-powered water skis - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to skiing for water leisure sports, and relates to non-powered water skiing that is driven by human power without using a mechanical power source such as an engine, and the related art is a basic structure for facilitating balance on water. The present invention relates to a non-powered water ski in which a plate and a pole are integrally connected to each other. In order to solve the problem that the existing water ski equipment is not easy to carry due to the large volume, the plate is formed as an inflatable tube, and a plurality of webs which are attached to the bottom surface of the plate in the longitudinal direction are the same as the plate (or similar properties). Of course, it is made of material to have flexibility, and the shape of the webbed is designed to oval to cover the maximum amount of water when the plate moves backward. Therefore, the equipment of the present invention can be easily balanced on the surface of the water without any towing equipment and enjoy the level or more speed of running on the ground, as well as removing the wind from the plate and removing some components into the backpack. It is a device with a feature that can be carried.

Water skiing, Powerless, Leisure sports, Tubing, Portable, Load distribution

Description

Portable type of human-powered water skis

1 to 12 is a view of the entire equipment or its components for showing the configuration and effect of the equipment of the present invention,

1 is a view showing the use of the equipment of the present invention on water.

Figure 2 is a perspective view of the left side plate of the equipment from the front.

Figure 3 is a perspective view of the left side plate of the equipment from the rear.

4 is an exploded view seen from the rear after disassembling the left plate of the equipment into component units.

5 is a detailed view of the fins in which the equipment of the present invention is a means of generating propulsion;

6 is a perspective view of a parachute-shaped fin of the equipment.

7 is a view showing a form in which the webbed is inclined inwardly.

8 is a view showing a form in which the webbed is inclined outward.

9 is a view showing a user detached components (components except fixed attachments) to carry the equipment of the present invention.

Figure 10 is a perspective view showing a scaffold in the form of a nylon mesh of the equipment.

11 is a view showing the structure of the pole of the equipment.

12 is a view showing a user folding the tube to carry the equipment of the present invention.

13 to 23 is a view of the patent technology of the United States and the Republic of Korea for explaining the prior art in the technical field to which the present invention belongs,

13 is US Pat. No. 22,457 to Rowlands; Representative drawing of "Life Raft".

14 is US Patent No. 1,692,055 to Sheldon; Representative drawing of "Apparatus for walking on water".

15 is a Korean Utility Model No. 20-0009281 issued to Lee Il Bum; Representative drawing of "Su Water Ski".

16 is a United States Patent No. 3,835,494 to Dougherty; Representative drawing of "Water walking pontoons".

17 is a Republic of Korea Patent Application No. 10-2004-0083805 filed by the applicant of the present invention; Representative drawing of "powerless water skiing".

18 is U. S. Patent No. 974,520 to Risso; Representative drawing of "Shoe for walking on water".

19 is US Pat. No. 1,014,993 to Anderson; Representative drawing of "Water skee".

20 is United States Patent No. 1,533,023 to Meredith; Representative drawing of "Water ski".

21 is a Korean Patent Application No. 10-2004-0083805 filed by the applicant of the present invention; Second drawing of "powerless water skiing".

FIG. 22 is a United States Patent No. 2,694,209 to Lippincott; FIG. Representative drawing of "Water ski".

23 is United States Patent No. 5,697,822 to Kelly; Representative drawing of "Apparatus for walking upon water".

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

811 plate 815, 816 scaffolding-fixing member

817: pole-fixing member

822: poles 825, 826: scaffolding-support member

833 webbed (834): webbed-brace member

843 foot hole 844 foot hold

BACKGROUND OF THE INVENTION 1. Field of the Invention 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 power without towing equipment and without an engine mounted therein for self-propulsion.

Hereinafter, for convenience of technical description, the above-mentioned ski is referred to as 'non-powered water ski', and a component that is mounted on the foot (or stepped on) so that the user can be buoyant and float in the water among the components of the ski. This is called a 'plate', and a component that the user grabs by hand to balance or push water to gain momentum is called a 'pole'.

In the developed countries such as the United States and Europe, various inventions on vehicles using human resources have been continued. However, the success of commercialized products produced in factories is insignificant. Important in this technical field are 'balance' and 'speed', and the prior art, which is the background of the present invention, is analyzed in accordance with the development process from these two viewpoints.

First, let's analyze the balance on water. Inventions have been made for devices that can move on the surface with human power alone, but devices such as skiing, which are used by humans in standing position, are difficult to achieve a successful movement due to this balance problem. This is because when a person moves on a rocky surface, they are not provided with sufficient support and friction as on the ground. If you step on a pair of plates that are made to float and stand on the water, the support to prevent people from drowning can be obtained from the buoyancy of the plate against the surface of the water, but when you step on the plate, Its position is so high that it will capsize even a small swing like a loaded load, so stable support is not possible, and the user does not slip to the front, rear, left, and right sides with insufficient friction between the surface and the plate. You need to focus on your nerves. Ice skates only allow forward and backward movement on the ice, so mastery is possible by the user's efforts, while non-powered water skis can slip the plate in any direction, helping to balance Unless you have a special structure, you will not be able to enjoy the sense of speed, but simply become a skill of walking carefully on the surface of the water.

The progress of the prior art to solve this balance problem is shown in US Patent No. 22,457 (1858.12.28) to Rowlands, each of which has a pole on the deck of two small boats (plates) that float the user above the water. It is fixed so that the user can hold and rely at the same time to form a connection structure limiting the double interval (see Fig. 13). This is a very stable structure or more than necessary, the user's activities can only be unnatural.

US Patent No. 1,692,055 (1928.11.20) to Sheldon secured two plates on the left and right frameworks so that the plates can only slide back and forth (see Figure 14). Complexity leads to manufacturing difficulties.

In Korea Utility Model No. 20-0009281 (October 04, 1972) granted to Lee Il-bum, the user's feet were fixed to the plate with a boot-shaped structure to prevent the plate from tipping over (see Fig. 15). Zooming, of course, can also lead to drowning.

In U.S. Patent No. 3,835,494 (Dec. 17, 1974) issued to Dougherty, in addition to Sheldon's technique described above, the pole is connected to the plate with a pin connection structure (or hinged connection) (see Fig. 16). This holding pole can be tilted back and forth, allowing more freedom of arm movement. However, as in Sheldon's technique, the reason for Paul's functional existence in Dougherty's technique can be seen by checking where the pole is connected to the plate (near or right in front of the footrest). Is no different from The technology also puts the user's leg into the plate to the depth of the knee, which is like fixing the foot to the plate.

Looking at the evolution of balancing technology, the easier it is for a user to balance, the more structurally complex or restrictive the activity is. Therefore, the advanced technology in this field may be a technology that is simple in structure but easy to balance the user without restraining the user's activity. Korean Patent Application No. 10-2004-0083805 filed on Oct. 20, 2004, filed by the present applicant, satisfies this purpose (see FIG. 17). In skiing on snow, a pole is snow on a plain. It acts as a balance when pushing or accelerating, and in this application, the pole is connected to the rear of the plate (stern part of the ship) in a pin connection structure to integrate the plate and the pole. In Sheldon and Doughty's technique described above, the pole was for a 'stick' function, but the pole presented in this application acts as an extension of the arm so that the user's arm meets the plate, from the shortest point between the arm and the plate. By connecting them far enough apart to the rear (by connecting the ends of the plates and poles together), a kind of 'link' device is constructed in which the user-plate-poles move in conjunction with each other. Thus, if the person relies on gravity in order to simply use this pole as a cane, the user falls down. As can be seen in the figure, this structure is simple and even seems to be fast. As the user holds the pole, the left and right swings of the plate are controlled to prevent overturning, and the user's legs, the plate and the pole form a stable triangular structure to support the user's center of gravity. Never fall into the water. By using a propulsion method that generates propulsion by forward and backward reciprocation of the plate, the poles connected to the rear of the plate help to increase the propulsion.

In the present invention, the above-described 'integrated connection between the plate and the pole' is used.

Following the balance, let's analyze the speed of non-powered water skiing. The fastest means of moving on the surface by human power alone is canoeing, of which the speed record for Olympic male single-seater canoeing is 5-6 m / s. For reference, this game is too hard for women to play. It has been inferred that various methods have been invented for propelling non-powered water skiing, but have not produced enough propulsion, since there is no commercialized technology. When recalling a canoe race, in order for a non-powered water ski to move at a satisfactory speed, the propulsion system must be capable of obtaining sufficient water recoil (reaction to the front of the water for a movement that pushes the water backwards).

In order to find a structure in which the water-powered water ski obtains the maximum speed, in the development of the prior art, U.S. Patent No. 974,520 (1910.11.01) issued to Risso, aberration-type propulsion device that rotates in accordance with the walking movement of the plate (See Fig. 18) Here, Risso added a structure that can rotate aberrations even by hand movement, but in both structures, the left and right plates of the water skis are connected to each other to limit the movement of the legs. There is a shortage of methods for rotating aberrations at high speed. The best proven method of rotating aberrations or propellers at high speed by manpower is the bike's power system structure.

In U.S. Patent No. 1,014,993 (1912.01.16) issued to Anderson, a plate-shaped fin (on the wing of Anderson) is mounted on the side of the plate so that when the user moves the plate back and forth alternately, if the plate moves forward, the fin is folded and the plate If you move backwards, the web will expand to push the water backwards (see Figure 19). This is one of the simplest and most effective ways to achieve propulsion by using the user's leg movement at the surface, but the area of the web Considering that it is small and the distance that a person can move a bridge over water is less than 1 meter, the amount of thrust that can be generated is small.

US Patent No. 1,533,023 (1925.04.07) to Meredith attempted to attach a plate fin to the bottom of the plate (see FIG. 20). The top is blocked by the bottom of the plate, which increases the pressure retention effect (in Anderson's technology, the water pushed out by the fins rises above the surface, reducing the pressure on the fins). However, Meredith's technique also lacks a fin. This is because the flow rate is not controlled to the left and right.

Korean Patent Application No. 10-2004-0083805 (filed Oct. 20, 2004) filed by the present applicant solves this problem (see FIG. 21). A channel is formed in the longitudinal direction at the bottom of the plate and a plurality of lines are arranged in it. It is a plate webbed hook. Focusing on the swimming underwater of the shrimp in the application, the name 'swimming leg' is used for many of these fins arranged in a row. The top of the fin as well as the left and right sides are blocked by the plate to move the plate backwards to minimize the loss of flow when water is pushed out. The reduction in flow loss leads to an increase in propulsion. In the channel formation structure, the plate was directly formed without attaching additional valves on both sides of the lower end of the plate, and the shape of the plate itself included the channel so that the overall equipment was simple and streamlined.

The bottom line is that non-powered water skis, which can be moved from the surface of the water with the help of human power without the aid of traction equipment or fuel-powered engines, are the simplest way to solve the problem of 'balance' and 'speed'. Connect at the ends of each other like a linkage device and connect the fins in a row at the bottom of the plate to obtain propulsion through the reciprocating motion of the plate, but to maximize the flow rate that can be pushed to the fins.

However, the prior art overlooked the 'portability' of the conditions for the popularization of water leisure sports goods. In Lippincott U.S. Patent No. 2,694,209 (1954.11.16), which used a powered tube to construct a non-powered water ski, the tube was merely a means of providing buoyancy and was not invented for direct personal transport and transport (see Figure 22). Recently, Kelly's U.S. Patent No. 5,697,822 (Nov. 16, 1997) has also used air-filled tubes, but it has the ability to increase and decrease volume, making it easy to store, but when looking at the 'buoyant platform', a large and rigid structure. The personal carrying and carrying is very limited (see Fig. 23). According to Archimedes' principle, the volume of the plate to fully float the user's body over the water should be at least as large as the body of the user, and the shape of the plate should be streamlined. In view of this, the length of the plate should be at least as long as the height of the user. This burdensome size causes personal inability to carry, and only generates demand for a rental business like a duck boat in a resort. Conversely, most people who would like to experience if they could carry personally owned equipment.

Therefore, the present invention is a non-powered water ski that solves the problem of balance and speed so that water skiing can be enjoyed without towing equipment regardless of the place (sea, river, valley, swimming pool, etc.) The object of the present invention is to make it convenient to carry.

The detailed tasks are as follows.

First, the overall weight of the equipment should be light so as not to burden the user when carrying and moving in water.

Second, outside the water, the user should be able to reduce the volume to less than 1/10 for easy portability.

Third, while satisfying the two conditions of weight and volume, the user must have a rigid structure so that the user can stand without bending when standing on the water plate.

In order to achieve the above object, the non-powered water skiing of the present invention comprises two plates having buoyancy; A pole connected to the rear stern portion of the plate in a pin connection manner; In the non-powered water ski formed with a plurality of webs attached to the bottom of the plate, the plate is formed as an air injection tube, the webs at the bottom of the plate is a bag form that can be folded and unfolded freely and the weight applied to the footrests front and rear of the plate It has a characteristic including the 'load distribution structure' that can be dispersed and supported by.

Hereinafter, the detailed configuration of the present invention will be described with the drawings.

1 is a view showing the use of the equipment of the present invention on water, showing the basic structure of the non-powered water skiing of the present invention. The plate 811 and the pole 822 are integrally connected, and the left and right sides are symmetrical, and a plurality of webs 833 are attached to the bottom surface of the plate 811 in a row. The user steps on the plate 811 and stands on the water, grabbing the pole 822 and balancing it. As can be seen in the figure, the user, the plate 811 and the pole 822 has a stable connection structure of a triangular shape. Here, it is natural that the plate has an air inlet, but the structure and the attachment position of the air inlet are omitted from the drawings because they are outside the scope of the present invention.

2 to 4 are a perspective view and an exploded view according to the observation direction of the left plate for explaining the detailed configuration of the non-powered water skiing.

As shown in FIG. 4, the plate 811 is formed of an air injection tube, and the scaffold groove 843 is formed at the upper center of the plate 811. The scaffold groove 843 is a place where the scaffold 844 is inserted, although not shown in the figure, the scaffold groove 843 and the scaffold 844 should have a passage downward so that water does not accumulate therein. A plurality of webs 833 are attached to the bottom surface of the plate 811 in a row, the webs 833 is configured in the form of a bag to wrap the water and push it back. The plate 811 and the webbed 833 may be made of synthetic resin (polyvinyl chloride, polyethylene, etc.) or waterproof coated cloth ('PVC laminating fabric', 'PVC coated fabric', 'high-pallon coated fabric', etc.). The webbed 833 is made of an uncoated pure cloth (cotton, hemp, wool, nylon, etc.), so even if a very small amount of water passes through.

FIG. 5 shows a detailed view of a webbed 833 which is a major means of providing propulsion to non-powered water skis, and the web 833 is made of the above-described soft fabric, so that the plate is pushed backwards to propel the water. Thereby, the webbed 833 may be turned upside down. The fin-brace member 834 serves to prevent a reduction in propulsion by continuously maintaining the shape when the fin 833 is subjected to water resistance. The fin-brace member 834 in the figure is a valve shape and is joined to the fins 833 on the inside of the fin 833, depending on the shape and size of the fin 833, the number of fin-brace members 834 Add. Abutment surface 836 of the fins and abutment surface 835 of the fin-brace member are portions that are joined to the bottom surface of the plate. The fin-brace member may be configured in the form of a parachute, which is illustrated in FIG. 6. The fins 833 are sewn with nylon straps 837 and are pulled rearward by the fin-brace members 834. Here too the joining surface 836 of the webbed and the joining surface 835 of the webbed-brace member are joined to the bottom surface of the plate.

According to the arrangement of the webbed to the plate can change the movement characteristics of the non-powered water skiing. When the web 883 is attached to the bottom surface of the plate to be inclined inward as shown in FIG. 7, the web is pulled back by pushing the water, but some are sent outward. Therefore, when using such a non-powered water ski, pushing a specific plate backwards will gain rotational force on the other side. On the contrary, when the web 833 is attached to the bottom surface of the plate to be inclined outward as shown in FIG. 8, when one plate is pushed backward, rotational force is obtained in the same direction.

The non-powered water ski of the present invention needs to suppress deformation of the plate due to the weight of the user by mounting an auxiliary structure in order to sharpen the shape of the plate and reduce its weight as the plate is a pneumatic tube. According to this need, the non-powered water skiing device of the present invention has a 'load distribution structure'.

Two scaffold-fixing members 815 and 816 joined between the bow of the plate 811 and the scaffold groove 843 and between the stern and the scaffold groove 843 in FIG. 2; Two scaffold-supporting members (825, 826) connecting the front and rear scaffold-fixing members (815, 816); It can be seen that the 'load distribution structure' consisting of the scaffold 844 supported by the two scaffold-supporting members 825 and 826. Thus, when the user's weight is applied to the footrest 844, it is distributed to the front and rear foothold-fixing members 815 and 816 along the foothold-supporting members 825 and 826.

Here, the non-powered water ski should be separated for each component in order to have portability. In FIG. 9, the scaffold 844, the scaffold-supporting members 825, 826, and the pole 822 are separated from the plate 811. Is possible. However, the scaffold-fixing members 815 and 816 are completely bonded to the plate 811.

The footless 844 of the non-powered water ski is based on a plastic material as shown in the drawings introduced so far, but a mesh form of nylon material is also possible as shown in FIG. 10. Net footrest 844 can be folded freely to increase portability when moving and storage after use of the equipment.

11 illustrates a detailed structure of the pole, the pole 822 can be separated into at least two parts to reduce the length. In the drawings, the first segment 827, the middle segment 828, and the end segment 829 are shown divided into three parts. The hinge 818 is fitted to the pawl-fixing member 817 to serve as an axis in which the pawl 822 rotates, and the bolt 819 serves to prevent the hinge 818 from falling out. Here, for convenience of the user, it is good to connect the three nodes with a rubber band through the inside of the pole 822 like a general small tent.

When the user describes the operation procedure for carrying the non-powered water skiing of the present invention. As shown in FIG. 9, the pole 822 is separated from the pole-fixing member 817, and the pole 822 is separated into a first node 827, a middle node 828, and an end node 829 as shown in FIG. 11. Again, after releasing the air of the plate 811 in FIG. 9 and lifting the footrest 844 to separate it from the foothold-supporting members 825 and 826, the foothold-supporting members 825 and 826 are the foothold-fixing members 815. 816, to the left and right. As shown in FIG. 12, the separated components are rolled and placed in the backpack together with the footrest 844, and the inflexible rod-like components such as the pole 822 and the foothold-supporting members 825 and 826 are allocated. Strap on the left and right sides of the neck.

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. It is also light, so it is convenient to use and can be carried in a backpack after use.

Claims (14)

Left and right two plates having buoyancy; Poles each connected to the rear stern portion of the plate in a pin connection manner; In the non-powered water ski formed of a plurality of webs attached to the bottom surface of the plate, A plate formed of an air injection tube; A webbed fin that can be folded and unfolded freely; Non-powered water skiing characterized by having a 'load distribution structure' which distributes and supports the weight applied to the scaffold in front and rear of the plate. The non-powered water skiing system according to claim 1, wherein a scaffold groove is formed at the center of the plate formed of the air injection tube to insert the scaffold. delete The water-free water skiing of claim 1, wherein the web of the webbed web is an uncoated cloth (cotton fabric, nylon, etc.). 2. The non-powered water skiing device according to claim 1, wherein a webbed-brace member is connected or bonded to the webbed web to prevent the webbed tipping over when water is pushed backward to generate a driving force. 6. The non-powered water skiing device according to claim 5, wherein the webbed-brace member has a valve shape to which at least one is attached to an inner surface of the webbed to strengthen the connection between the webbed and the plate. 6. The non-powered water skiing device according to claim 5, wherein the webbed-brace member is configured to pull the webbed with a plurality of strings from the rear like a parachute. 2. The non-powered water skiing of claim 1, wherein the webbed is attached to the bottom surface of the plate to be inclined inward. 2. The non-powered water skiing of claim 1 wherein said webbed is attached to the bottom surface of said plate to tilt outward. The method of claim 1, wherein the load distribution structure comprises: two scaffold-fixing members respectively attached between the bow of the plate and the scaffold groove and between the stern and the scaffold groove; Two scaffold-supporting members for connecting the front and rear scaffold-fixing members; Non-powered water skis, characterized in that consisting of the footrest supported by the two footrest-supporting members. The water powered ski according to claim 10, wherein the scaffold is detachable from the scaffold-supporting member, and the scaffold-supporting member is detachable from the scaffold-fixing member. 11. The non-powered water skiing of claim 10, wherein the scaffold is made of plastic. 11. The non-powered water skiing according to claim 10, wherein the scaffold is a mesh of nylon material. The method of claim 1, wherein the pawl is detachable from the plate; The poles themselves are non-powered water skis, characterized in that can be separated into two or more parts.

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