JP7432232B2 - Leg kick propelled water boat - Google Patents

Description

TECHNICAL FIELD The present invention relates to a foot-kick propulsion watercraft.

Conventional ships that move on water use oars, paddles, fins, screws, etc. as propulsion devices to push the water backwards, or use water resistance to move the ship forward using them as fulcrums. The method is known.

Therefore, conventional ships needed to have a shape and structure that ensured stability in the forward and backward directions, the resistance of the water that the ship received when moving forward, and the ability to withstand waves, water currents, wind, etc.

The tools used to operate boats, such as paddles, oars, and lumber, are unfamiliar to people living on land.

Therefore, since it is different from the movements that we are accustomed to in everyday life, such as walking and running, training is required to become familiar with it.

In the case of a ship that moves at low speed on water (see Patent Document 1), there is no problem even if the propulsion force and strength of the ship are small as long as it is used in a limited usage environment, and it can also be used as a health appliance.

Therefore, it is unsuitable for use in diverse natural environments such as the sea and rivers.

When flowing down a river, stability is required to avoid collisions with rocks and dark rocks in the flow, seawalls, cliffs, wave-dissipating blocks, etc., and in rapidly changing waves and water currents.

Therefore, heavy hulls such as rafting boats are used, which are sturdy and highly stable.

In addition, when a ship moves on the surface of the water at high speed, consideration must be given to frictional resistance with the water and wave-making resistance, and planing and hydrofoils are known as means to reduce these. It is necessary to run at high speeds with normal displacement during the stages of gliding or hydrofoil wing running, and the structure, strength, and lightness must be able to withstand this.

Therefore, it is an expensive product that uses advanced technology and materials such as CFRP.

There are ways to change the direction of a ship, such as using a rudder behind or in front of the ship, or turning the propulsion unit itself.

Therefore, some sort of redirection mechanism and structure is required.

On the other hand, as a means of locomotion on the water surface, large-footed iguanas called basilisks that live in Central America and grebes during pairing use the additional inertia caused by the viscosity of water to quickly and strongly push the water surface with the soles of their feet. Some animals run on the water surface by using the repulsive force from the water surface by hitting and kicking, but all of them are light and have strong legs.

Therefore, it is impossible for humans, who are heavy and have relatively weak legs, to imitate this without using tools.

In addition, a sole plate tilted backwards toward the tip of the foot in order to kick water backwards is also effective, but it is difficult to walk on land with a sole plate at this angle. be.

Therefore, when boarding and disembarking from the boat, a mechanism for walking on land is required.

Japanese Patent Application Publication No. 09-039884

In view of the above-mentioned drawbacks of the conventional art, the present invention provides a buoyant body that does not have lateral stability or a rudder by embodying a propulsion method that hits and kicks the water surface or kicks the water backwards in the direction of travel. The object of the present invention is to provide a simple and lightweight foot-kick-propelled water-running human-powered boat, which is composed of a seat with a connecting leg frame, and a seat with a connecting leg frame.

Another object of the present invention is to provide a foot-kick-propelled water-running human-powered boat that moves on the water with the familiar running motion.

Another object of the present invention is to provide a foot-kick-propelled surface-running human-powered boat that can run by hitting and kicking the water surface against waves and swells, and transition to wave riding.

Another objective is to provide a foot-kick-propelled surface running human-powered boat that is stable and safe in all directions and is safe for children and beginners.

Another object of the present invention is to provide a foot-kick-propelled surface running human-powered boat that is safe even when used in crowded places such as pools and beaches.

In addition, in order to kick water more efficiently backwards, it can be fixed at a backward angle with respect to the direction of the feet, and it has a sole plate that can be adjusted to move to an angle that does not become an obstacle when walking on land, or that can be attached and removed. The purpose is to provide a foot kick propulsion surface running human powered boat.

In addition, when going down a river, the performance, stability, and safety of mitigating the impact of waves and changes in water flow in rapids, and collisions with obstacles such as rocks and cliffs, and the ability to push against obstacles with water flow. The purpose of the present invention is to provide a foot-kick propulsion surface-running human-powered boat that has the ability to easily escape from situations where it is exposed.

In order to achieve the above objective, a buoyant body that carries buoyancy to support the rider's weight and a seat are provided, and the seat is placed in a position where the buoyant body and the leg frame of the seat do not interfere with the trajectory of the leg kick movement. , constitutes a foot kick propulsion water surface running human-powered boat equipped with a sole plate used for foot kicks.

In the second invention, the two buoyant bodies are constructed in the form of a catamaran boat, and the leg-kick propulsion surface-running human-powered boat is constructed in which the seat is a connecting leg frame and is placed approximately in the center.

In the third invention, a foot-kick propulsion surface-running human-powered boat is configured in the form of a catamaran boat, and the distance between the catamaran-like buoyant bodies can be narrowed or widened using a handle lever on an extension of the connecting leg frame. There is.

In the fourth aspect of the invention, a foot-kick-propelled surface-running human-powered boat is constructed by overlapping two board-shaped buoyant bodies and connecting them so that they can be opened and closed at the lower part of the leg frame of the seat.

In the fifth invention, a foot-kick-propelled water-running human-powered boat is constructed in which the buoyancy body is annular.

In the sixth aspect of the present invention, a human-powered water boat with foot kick propulsion is constructed in which the buoyancy body is an air-inflatable buoyancy body, foamed plastic, or foamed rubber.

In the seventh aspect of the invention, a foot-kick propulsion surface-running human-powered boat is constructed in which two or more buoyant bodies are fixed to the other end of the leg frame connected to the seat.

In the eighth invention, in order to efficiently kick water backward, the sole plate can be fixed at a backward angle with respect to the direction of the toes, and can be adjusted to be movable to an angle that does not become an obstacle when walking on land. It consists of a leg-propelled water-powered human-powered boat.

In the ninth aspect of the invention, in order to efficiently kick water rearward, the sole plate constitutes a foot-kick-propelled water-running human-powered boat that can be attached and detached at an angle tilted backward with respect to the tip of the foot.

In the tenth aspect of the invention, each buoyant body is annular and is rotatably attached to the other end of the leg frame connected to the seat as an axis, thereby configuring a foot-kick propulsion water-running human-powered boat.

In the first invention, in order to efficiently kick water backward, the sole plate can be fixed at a backward angle with respect to the direction of the toes, and can be adjusted to be movable to an angle that does not become an obstacle when walking on land. It constitutes a foot kick board that can be used.

In the 12th aspect of the invention, in order to efficiently kick water backward, a foot kick plate is configured that can be attached and detached at an angle tilted backward with respect to the direction of the foot.

In the 13th invention, the sole plate is made of a hard material such as hard plastic, metal plate, wood, or composite material such as CFRP or FRP.

As is clear from the above description, the present invention provides the following effects.
(1) A buoyant body that carries buoyancy to support the rider's weight and a seat are provided, and the seat is placed on the trajectory of the leg kick in a position where the buoyant body and the leg frame of the seat do not interfere with the leg kick. Since the structure uses sole plates, it is possible to use a propulsion method of hitting and kicking the water surface, or a propulsion method of kicking the water backward in the direction of travel.

(2) Since it consists of two buoyant bodies shaped like a catamaran boat, and the seat is placed approximately in the center using a connecting leg frame, stability and direction change functions are not required. Simple, compact, and lightweight.

(3) In the configuration of the catamaran described in (2), the spacing between the catamaran buoyant bodies can be narrowed or widened using the handle lever on the extension of the connecting leg frame, so it is possible to When transitioning from propulsion to surfing, you can put your feet on the buoyant body and hold on.

(4) Since it has a structure in which two board-shaped buoyant bodies are stacked one on top of the other and can be opened and closed at the bottom of the seat's leg frame, kicking is performed on the left and right outside of the buoyant body, and when surfing the waves, the two board-shaped buoyant bodies can be used. You can open it and put your foot on it.

(5) Since the buoyancy body described in (1) is annular, it is safe and stable in all directions and is suitable for use by children and beginners.

(6) Since the buoyant body described in (1) is made of an air-inflatable buoyant body, foamed plastic, or foamed rubber, high stability and safety for surrounding people and objects can be obtained.

(7) Since the structure is such that two or more of the buoyant bodies described in (1) are fixed to the other end of the leg frame connected to the seat, a lightweight boat with a simple and simple structure can be obtained.

(8) The sole plate described in (1) can be fixed at an angle that is tilted backwards toward the tip of the foot, which is optimal for efficiently kicking water backwards, and it can also be fixed at an angle that does not become an obstacle when walking on land. Since the boat is configured as a human-powered water boat with leg kick propulsion that can be moved and adjusted, water can be efficiently kicked backwards, and it is easy to walk on land when boarding and disembarking the boat.

(9) Constructing a foot-kick-propelled water-running human-powered boat that can be attached and detached at an angle tilted backwards in the direction of the feet, which is optimal for efficiently kicking water backward with the foot sole plate described in (1). Because of this, you can wear it for efficient leg kicking, and you can also remove it and walk on land.

(10) Each of the buoyant bodies described in (7) is annular and is rotatably attached to the other end of the leg frame connected to the seat as an axis, so it is easy to move around obstacles such as rocks and cliffs. It provides stability and safety in the event of a collision, the ability to cushion the impact, and the ability to easily escape from situations where the water current pushes you against an obstacle.

(1 1) A sole plate for efficiently kicking water backwards that can be fixed at a backward angle with respect to the tip of the foot, and can be moved and adjusted to an angle that does not pose an obstacle when walking on land. This configuration allows water to be efficiently kicked backwards, making it easy to walk on land when boarding and disembarking from the boat.

(1 2) The sole plate for efficiently kicking water backwards is constructed with a sole plate that can be attached and removed at an angle backward in relation to the tip of the foot, so it can efficiently kick water backwards. They can scratch, and they can also walk on land when boarding and disembarking the boat.

The sole plate described in (13), (1), (8), (9), (11), or (12), which is made of a hard material such as hard plastic, metal plate, wood, or composite material such as CFRP or FRP. Since the sole plate is made up of two sole plates, water can be efficiently kicked backwards by kicking the foot.

A perspective view of the first best mode for carrying out the present invention Exploded view of the first best mode for carrying out the present invention A perspective view of the second best mode for carrying out the present invention A perspective view of the third best mode for carrying out the present invention A perspective view of the fourth best mode for carrying out the present invention A perspective view of the fifth best mode for carrying out the present invention A perspective view of the sixth best mode for carrying out the present invention Plane and front view of the seventh best mode for carrying out the present invention Three lateral views of the seventh best mode for carrying out the present invention Plane and front view of the eighth best mode for carrying out the present invention Cross-sectional and perspective views of the ninth best mode for carrying out the present invention Exploded view of the ninth best mode for carrying out the present invention

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below using the best mode for carrying out the invention shown in the drawings. However, although the best mode of the invention is the perspective view shown in FIG. 1, similar effects can be expected from the embodiments shown in other figures.

(First form)
In the first preferred embodiment of the present invention shown in FIGS. 1 and 2, 1 is a buoyant body for supporting body weight, and a leg pipe 6 is fixed to a joint base 7 on the upper surface of the buoyant body 1. , the other end is fixed to the height adjustment fitting 4 to fix the seat 2 at an appropriate height, 3 is a handle grip for stabilizing the posture of the rider and the boat, and 5 is a handle grip that can be attached to the foot to hold it on the water surface. This is a sole plate for hitting and kicking water, or kicking water backwards in the direction of travel.

The kick-propelled water-powered human-powered boat constructed as described above supports the rider's weight with the buoyant body 1, hits the water surface with the sole plate 5, and kicks the water backwards to obtain propulsion.

In addition, the rider's weight is applied to the buoyant body on the side that hits the water surface, and the buoyant body is on the side that sinks, so the upward pushing effect and the propulsive force of kicking the water backwards are easily transmitted.

In the foot-kick-propelled water-running human-powered boat with the above configuration, it is possible to achieve stability and direction changes in a natural manner through familiar exercise movements, similar to running on land.

The handle grip 3 of the foot-kick propulsion surface-running human-powered boat configured as described above makes it easy to control the posture of the rider and the posture of the boat as a whole, and it is easy to maintain stability against changes in waves and water currents, as well as the impact of collisions with obstacles. .

(Second form)
In the second best mode for carrying out the present invention shown in FIG. 3, when riding waves or swells from foot kick propulsion, the first mode shown in FIG. In order to control the board by placing your feet on the buoyant body, you can operate the control lever 8 to narrow or open the gap between the catamarans.

In the foot-kick-propelled surface-running human-powered boat with the above configuration, it is possible to shift directly from a standing position to a wave-riding position, making surfing easier and at the same time increasing the possibility of riding fast offshore swells.

(Third form)
In Fig. 4, when moving to wave riding by kicking the legs on the left and right outside of the buoyant body 1, the lock 10 of the board-shaped buoyant body 1 stacked on top of each other at the hinge 9 is released, and the board is moved left and right with the feet. After pushing it open and riding the waves, the board-shaped floating body 1 is closed by pulling the closing line rope 1 1 , and then kicking propulsion can be started again.

The foot-kick-propelled surface-running human-powered boat with the above configuration is shaped as a single board-shaped buoyant body when riding waves, so that the sensation of riding waves can be further enhanced.

In FIG. 5, the buoyant body 1 is made into a single elongated displacement type, and the leg kick propulsion motion is performed on the left and right outer sides of the buoyant body 1, and it is possible to attach a lateral stabilizing float 12.

In the foot-kick-propelled surface-running human-powered boat having the above configuration, water resistance can be reduced by the elongated displacement-shaped hull, and lateral stability can be achieved by installing a lateral stabilizing float.

(Fourth form)
In Figure 6, by making the buoyancy body 1 circular, oval, or horseshoe circular, it is highly stable in all directions, so even beginners, children, and people with disabilities can start riding without prior explanation. It is highly safe from surrounding swimmers and obstacles.

The leg-kick propulsion water-running human-powered boat with the above configuration is easy for beginners to start using and is highly safe, so it is useful for promoting the spread of water leisure.

(Fifth form)
Further, by using an air-inflatable buoyancy body, foamed plastic, or foamed rubber as the buoyancy body 1 shown in FIGS. 1, 6, and 7, stability performance and safety for surrounding people and objects are improved.

Furthermore, by selecting the structure and material of this buoyant body, it can be folded into a small size, manufactured at low cost, easy to carry and store, and lightweight and portable.

(Sixth form)
In FIG. 7, a buoyant body 1 for supporting the rider's weight and propelling the rider by kicking his legs is fixed to the other end of a leg pipe 6 fixed to a seat 2.

In the leg-kick propulsion surface-running human-powered boat having the above configuration, the floating bodies 1 can be arranged in a variety of configurations such as 2 points, 3 points, 4 points, 5 points, and a large number with a simple structure.

Fig. 8 shows that when the sole plate 1 3 used for leg kick propulsion is used for leg kick propulsion, the fixing piece 1 4 is fixed by applying it to the back of the stopper claw 1 5 at a backward angle with respect to the direction of the foot. When walking, slide the elongated slide hole 17 relative to the rotation axis 16, stretch the spring 18, rotate it over the stopper claw 15, and rotate it at an upward angle with respect to the direction of the foot. The configuration is such that it can be fixed again.

To explain step-by-step how to adjust the movement of the sole plate with the above configuration, first immerse the sole plate 1 to 3 in water vertically from an angle suitable for walking upward in the direction of the toes. Kicking forward, fixing the fixed piece 1 4 behind the stopper claw 1 5 at an angle backward with respect to the direction of the foot to propel the foot kick, and when starting to walk, keep the sole plate 1 3 in a vertical position. Then, kick from the back to the front again, and quickly kick from the front to the back to fix the foot at an upward angle with respect to the direction of the foot, suitable for walking.

FIG. 9 shows that when the sole plate 1 3 used for kicking the foot is propelled by the foot, the flip-up stopper claw 2 0 is released and the sole plate 1 3 is rotated by the rotation axis 1 6 toward the tip of the sole of the foot. When walking, the sole plate 13 is rotated toward the heel and flipped up to be fixed with a stopper claw 20.

To explain the movement adjustment step by step with the sole plate configured as above, flip up the sole plate 13, release the stopper claw 20 by hand, swing the foot strongly forward in the air, and move it toward the tip of the foot. On the other hand, it is fixed at a backward angle with a stopper claw 1 5 to perform foot kick propulsion, and when walking, it is kicked from the back to the front in the water, flipped up in the direction of the heel, and fixed with the stopper claw 2 0 .

In Fig. 10, the sole plate 5 used for leg kick propulsion is put on from the tip of the foot at an optimal angle to achieve forward propulsion, the heel part is rotated by the rotation axis 16, and the shoe is attached with the buckle 19. When disembarking from the boat, the buckle 19 can be released and the boat can be quickly dismounted.

With the configuration of the sole plate shown in FIGS. 8, 9, and 10, it is possible to provide a human-powered watercraft capable of efficient foot kick propulsion.

In FIG. 1 1 , each buoyancy body 1 is annular and is rotatably attached to the other end of a leg frame 6 connected to a seat 2 .

The foot-kick propulsion surface-running human-powered boat with the above configuration has high stability performance, and even if it collides with or is pressed against an obstacle, it can cushion the impact, safely escape, and cause less damage to the surrounding environment.

The structure shown in FIG. 12 is easy to disassemble and assemble, and is lightweight and easy to carry, move, and store.

The foot-kick propulsion surface-running human-powered boat with the above configuration has high stability performance even in river currents, and can easily avoid and escape obstacles, and can easily move on land from downstream to upstream.

1 Floating body 2 Seat 3 Grip handle 4 Height adjuster 5 Sole plate 6 Leg pipe 7 Joint base 8 Control lever 9 Hinge 1 0 Lock stopper 1 2 Lateral stabilizing float 1 3 Sole plate 1 4 Fixed piece 1 5 Stopper claw 1 6 Rotating shaft 1 7 Slide slot 1 8 Spring 1 9 Buckle 2 0 Fixed claw 2 1 Rotating piece 2 2 Bracket 2 3 Tension stay

Claims (12)

It is equipped with a buoyant body that carries the buoyancy to support the rider's weight, and a seat.The seat is placed on the trajectory of the leg kick in a position where the buoyant body and the leg frame of the seat do not become an obstacle. A human-powered boat that runs on the surface of the water and is equipped with foot soles that hit and kick. 2. The kick-propelled surface running human-powered boat according to claim 1, wherein the two buoyant bodies are constructed in the form of a catamaran boat, and the seat is arranged at a substantially central position with a connecting leg frame. 3. A human-powered watercraft having a catamaran configuration according to claim 2, wherein the distance between the catamaran buoyant bodies can be narrowed or widened by a handle lever on an extension of the connecting leg frame. A foot-kick-propelled water-running human-powered boat, in which the two board-shaped buoyant bodies according to claim 1 are superimposed and joined to be openable and closable at the lower part of the leg frame of the seat. A foot-kick propulsion surface-running human-powered boat in which the buoyancy body according to claim 1 is annular. A human-powered water boat with foot kick propulsion, wherein the buoyancy body according to claim 1 is an air-inflatable buoyancy body, foamed plastic, or foamed rubber. A foot kick propulsion surface running human-powered boat, wherein two or more of the buoyant bodies according to claim 1 are fixed to the other end of the leg frame connected to the seat. 2. The kick-propelled surface running human-powered boat according to claim 1, wherein the sole plate is capable of fixing the sole plate at an optimal angle for realizing forward propulsion, and the angle is tilted backward at least toward the tip of the foot. A foot-kick propulsion water surface running human-powered boat that can be adjusted to the desired angle. 2. The kick-propelled watercraft according to claim 1, wherein the foot sole plate can be attached and detached at an optimal angle to achieve forward propulsion, and the angle is at least a backward angle with respect to the direction of the foot. A human-powered boat propelled by foot kicks that runs on the surface of the water. 8. The kick-propelled surface running human-powered boat according to claim 7, wherein each of the buoyant bodies is annular and rotatably mounted on the other end of the leg frame connected to the seat. It is equipped with a buoyant body that carries buoyancy to support the weight of the rider, and a seat.The seat is placed on the trajectory of the leg kicking movement in a position where the buoyant body and the leg frame of the seat do not become an obstacle. This is a sole plate applied to a foot-kick-propelled water-running human-powered boat equipped with a sole plate for hitting and kicking, the sole plate being able to be fixed at an optimal angle to achieve forward propulsion, and the angle being at least A sole plate that can be moved and adjusted so that it tilts backwards in relation to the tip of the foot. 12. A foot sole plate applied to the foot-kick propulsion water-running human powered boat according to claim 11, which can be attached and detached at an optimal angle to achieve forward propulsion, and the angle is at least backward inclined with respect to the direction of the foot. The sole plate is at an angle.

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