JPH09277990A - Surface cycle boat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surface cycle boat which can be propulsive through a horizontal caudal fin of high energy efficiency by a simple mechanism to mechanically reproduce an ideal caudal fin motion locus to be similar to that of a fish. SOLUTION: Leg parts 2a are fixed astride catamaran hulls 1, so a seat 2 on which a driver is seated is disposed. A pedal mechanism supported on the seat 2 to provide torque is disposed at a front position of the seat 2. A pair of pedals 22 are fixed to a shaft 12, and a toothed gear 13 is fixed on it. This toothed gear 13 is engaged with a toothed wheel fixed on a shaft through a power transmission means 15. A bearing is provided at an end of a caudal fin 5 through a crank arm under a crank close to a bottom part between the hulls 1, 1 to be rotatably supported through a shaft supported on a frame 26. The caudal fin 5 of a horizontal type is provided to be rotatably supported on the frame 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water cycle boat adapted to be propelled via a horizontal fin.

[0002]

2. Description of the Related Art Conventionally, there are about 50 patent applications relating to vessels propelled by tail fins, and the dolphin kick type is disclosed in JP-A-52-103196, JP-A-4-100795, JP-A-5-16880, and JP-A-6-. 298177 and the like are disclosed.

The tail fin is extremely important for obtaining the propulsive force, and the shape, material, swinging locus, and angle greatly affect the propulsive force. According to the literature, the shape of the tail fin is "Katsuo" and the aspect ratio 6-1 found in "Tuna"
It is divided into a large crescent shape of 0 and a small spatula type with an aspect ratio of 1 found in carp and crucian carp. That is, the crescent-shaped one is capable of high-speed propulsion with an instantaneous velocity of 35 m / sec and a propulsion efficiency of 80%, and the spatula-shaped one is said to be relatively low speed. It is explained that the reason for this is that in view of fluid dynamics, a cylindrical jet flow is generated and propelled at the rear part of the tail fin that rapidly oscillates.

[0004]

According to the prior art, there were the following technical problems. JP-A-52-10319
No. 6 repeatedly describes the effectiveness of the tail fin propulsion system, but does not specifically disclose the possible mechanism of the driving system. Although the tail fin propulsion type ship has an energy efficiency of 80%, which is extremely higher than that of a drive system using a screw, it has not been put to practical use. JP-A-4-100795, JP-A-5-
The 16880s are monohulls, each of which has a high sheet, and thus has a problem of lack of stability. JP-A-6-29817
Reference numeral 7 is a tail fin propulsion ship developed by the present inventor. However, because of vertical rocking motion of the tail fin, the tail fin rides on a sandy beach shallow water or catches on a rocky place when traveling on a beach by a beach or a shallow river. The tail fin may be damaged.

Further, there has been a demand for the development of a water cycle boat which does not cause cavitation and which is suitable for fishing in rivers and for feeding fish such as dolphins that are afraid of screw noise.

Further, there has been a demand for the development of a water cycle boat with a prime mover that enables water cycling to be enjoyed even in places with flow such as rivers and the sea.

In addition, a battery for storing electricity of solar cells
It was desired to develop a water cycle boat that can be driven and can enjoy eco-friendly water cycling.

Further, in order to reduce the driving force by the pedal, by using auxiliary power from a battery, it is desired to develop a water cycle boat which can reduce the load on the foot and can enjoy water cycling. Was there.

The object of the present invention was made in view of the prior art. The first object is to make a hull with a sense of stability and to move an ideal high horizontal tail fin resembling a dolphin. It is to provide a water cycle boat that reproduces the trajectory mechanically and can run on sandy beaches and rivers in shallow water.

Secondly, since the water cycle by the pedaling pedal is possible, cavitation does not occur, and a water cycle boat is suitable for fishing in rivers and for feeding fish such as dolphins that are scared by the noise of screwing. To provide.

Thirdly, since a water cycle using a prime mover is possible, it is an object of the invention to provide a water cycle boat capable of traveling even in a place where there is a flow such as a river or the sea.

Fourth, the rotary drive mechanism is to provide a floating cycle boat which is a DC motor.

Fifth, the rotary drive mechanism is to provide a water cycle boat using both a foot pedal operated by human power and a DC motor.

[0014]

In order to solve the above-mentioned problems, the water cycle boat of the present invention has the following means. The water cycle boat according to the present invention includes a binocular body, a seat that straddles the binocular body and has fixed legs, and is supported by the seat at a front position of the seat. A rotary drive pedal mechanism for giving a rotational force, a crank mechanism supported by the seat and swinging in conjunction with the pedal mechanism via a power transmission means, and one end rotatably supported below the seat. A tail fin that is rotatably supported in the center through the arm of the crank mechanism and is swingable in the vertical direction, and a ladder that is supported by the seat and is capable of manually switching the direction of the hull. -A mechanism is provided and configured to propel over the water. The floating cycle boat has a rotary drive mechanism that is a pedal mechanism by pedaling by human power, a prime mover or a DC motor, and a combination of a pedal mechanism and a DC motor.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

The structure of the water cycle boat according to the present embodiment shows an example in which a rotary pedal is driven by a human-operated foot pedal.

[Embodiment 1] FIG. 1 shows the right side surface of a water cycle boat, and FIG. 2 is a plan view thereof. 3 is a sectional view taken along the line AA of FIG. 1, and FIG. 4 is a sectional view taken along the line BB of FIG.

As shown in FIG. 2, reference numeral 1 denotes a catamaran hull arranged in parallel. The rear part of the hull 1 is made of a flexible material such as hollow silicone rubber.

A leg 2a is fixed over the hull 1 of the catamaran, and a seat 2 on which a driver sits is arranged. At the front position of the seat 2, a pedal mechanism 10 supported by the seat 2 and giving a rotational force is arranged. The pair of pedals 11 is the shaft 1
2 and the toothed wheel 13 is fixed. The toothed wheel 13 meshes with a toothed wheel 14 fixed to a shaft 16 via a power transmission means 15. The power transmission means 15 selects a sprocket, a timing pulley, a V-groove pulley, etc. as design specifications. A toothed wheel 17 is fixed to the end of the shaft 16. The crank 24 is rotatably supported from both sides via the frame 26 supported by the seat 2, and the toothed wheel 21 is meshed with the toothed wheel 17 via the power transmission means 15.
As the power transmission means 15, for example, a chain, a timing pulley, or a V belt can be appropriately selected.

The crank of the crank mechanism 20 may have a disk fixed to the shaft and a pin fixed to an eccentric position of the disk supported by a cantilever.

Below the crank 24 near the bottom between the hulls 1 and 1, a crank arm 25 is provided, a bearing 27 is provided at the end of the tail fin 5, and the bearing is rotated by a shaft 29 supported by a frame 26. It is supported freely. And frame 2
A tail fin 5 of a horizontal type, which is rotatably supported, is provided on the plate 6.

The bearing 28 at the center of the tail fin 5 is engaged with the crank arm 25 and is rotatably supported by the crank 24 so as to be vertically swingable so that the hull 1 propels above the water. did.

The tail fin 5 is extremely important for obtaining a propulsive force, and the shape, material, swinging locus, and angle greatly affect the propulsive force. The material of the tail fin 5 is synthetic rubber,
Choose silicone rubber or a flexible one made of plastic. The shape is a large crescent moon with an aspect ratio of 6-10, and the optimum one is selected according to the hull weight, the loaded weight, and the hull shape.

The rudder mechanism 40 is used to switch the direction of the hull 1.
It is performed by The ladder mechanism 40 is supported by the hull 1,
The ladder handle 41 and the ladder 42 are connected via a link 46, and the ladder 42 supported by the support 45 is rotatable.

The operation of the water cycle boat of this embodiment will be described below.

When the driver sits on the seat 2 and pedals the pair of pedals 11 with the left and right feet, the toothed wheel 13 and the toothed wheel 21 are rotated through the power transmission means 15, and the crank 24 is rotated. Rotates. The rotation of the crank 24 causes the bearing 27 at the center of the tail fin 5 to swing up and down, and the tail fin 5 swings vertically in a vertical direction via the crank arm 28 to propel it on the water.

The development in the direction of the hull 1 is carried out by the ladder handle 4
1 may be manually switched back and forth. At this time, since the rear part of the hull 1 is made of a flexible material such as flexible silicon rubber, when the hull 1 turns, the rear part of the hull 1 draws a curvature along the flow of water to reduce resistance,
You can turn.

Since the water cycle can be performed by the foot pedal, it is possible to jogging on the water, the physical strength can be improved, and it is extremely effective for health.

It can also be used for fishing and for feeding fish such as dolphins that are scared of the screw noise.

[Embodiment 2] In the construction of the water cycle boat according to the embodiment of the present invention, an example in which the rotary drive is a drive source by a prime mover using gasoline as fuel is shown.

That is, the tail fin 5 is vertically swingable by using a driving mechanism 11 using a prime mover that uses gasoline as fuel instead of the pedal mechanism, and a propulsive force is applied to propel it on the water.

The second embodiment is the same as the first embodiment except that the driving source is different, and the rest is the same. Therefore, the drawings are omitted.

As the structure of the prime mover used in this embodiment, for example, a prime mover and a power transmission means having the same principle as those of a motorcycle which is widely used at present can be used.

That is, the pedal mechanism 10 shown in the first embodiment.
Is an engine, the power transmission means 15 is a combination of a sprocket and a chain, and the crank mechanism 20 is replaced with a cantilevered or double-supported crank instead of the rear wheel.
Through the crank arm 25, the bearing 28 at the center of the tail fin 5 is allowed to swing vertically.

According to this embodiment, the water cycle can be performed by the motor, so that water cycling can be enjoyed even in a place where there is a flow, such as a river or the sea.

[Embodiment 3] In the construction of the water cycle boat according to the embodiment of the present invention, an example is shown in which a battery for saving electricity of a solar cell is used as a drive source and a tail fin is driven by a DC motor.

The third embodiment is the same as the first embodiment except that the driving source is different and the rest is the same. Therefore, the drawing is omitted.

That is, in this example, in addition to the pedal mechanism, a drive mechanism by a DC motor is added to make the tail fin 5 swingable in the vertical direction, and a propulsive force is applied to propel it on the water.

According to the present embodiment, since the vehicle can be driven by the electricity stored in the solar cell, it is possible to enjoy environment-friendly water cycling.

If the battery is used as auxiliary power in order to reduce the driving force by the pedal, the load on the foot can be reduced.

As described above in the first, second and third embodiments,
According to the water cycle of the present invention, since the tail fin is made to resemble a fish and an ideal movement trajectory is mechanically reproduced, a propulsive force with high energy efficiency can be obtained. Further, if the tail fin 5 is configured to be detachably attached to the tail fin support portion and the tail fin support portion, the damaged tail fin 5 can be easily replaced and maintenance management becomes easy.

The one-seater hull has been described.
For two-seater, you can arrange the seats in the longitudinal direction of the hull,
It can be implemented by arranging them in parallel and changing the design as appropriate.

[0043]

According to the water cycle boat of the present invention,
It has the following effects.

Part 1: Since it was a catamaran hull, there was a sense of stability, and the ideal high horizontal tail fin movement trajectory resembling a dolphin was mechanically reproduced, so we ran on a sandy beach by the sea and a river in a shallow water. Even in the case, the tail fin is less likely to get on the sandy beach and get caught in the rocky place, and the tail fin is not damaged,
You can drive safely and freely.

No. 2: Since the water cycle by the foot pedal is possible, cavitation does not occur, and it is suitable for fishing in rivers and for feeding fish such as dolphins that are scared of the screw noise.

Part 3: Since the water cycle by the prime mover is possible, it is possible to enjoy water cycling even in a place where there is a flow such as a river or the sea.

Part 4: Battery for storage of solar cells
Since it can be driven, you can enjoy eco-friendly water cycling.

No. 5: If the auxiliary power from the battery is used to reduce the driving force by the pedal, the load on the foot can be reduced.

[Brief description of drawings]

FIG. 1 shows a right side surface of a water cycle boat of this embodiment.

FIG. 2 shows a plan view of the above.

FIG. 3 is a cross-sectional view showing a cross section taken along the line AA of FIG.

FIG. 4 is a cross-sectional view showing a BB cross section of FIG.

[Explanation of symbols]

 1 Hull 2 Seat 5 Tail Fin 10 Pedal Mechanism 20 Crank Mechanism 40 Ladder Mechanism 42 Ladder

Claims (5)

[Claims] 1. A cycle boat configured to be propelled by a tail fin, a hull of a catamaran, a seat having legs fixed across the hull of the catamaran, and a front of the seat. A rotary drive mechanism that is in a position and is supported by a frame provided on the seat to apply a rotational force, and a crank that is supported by the frame provided on the seat and is interlocked with the rotary drive mechanism via a power transmission means. And a horizontal tail fin rotatably supported at one end by the frame and rotatably supported in the center through an arm of the crank mechanism and vertically swingable. -A water cycle boat, which is supported by a boat and is provided with a ladder mechanism capable of manually switching the direction of the hull, and is configured to propel above the water. 2. The water cycle boat according to claim 1, wherein the rotary drive mechanism is a foot pedal operated by human power. 3. The water cycle boat according to claim 1, wherein the rotary drive mechanism is a prime mover. 4. The water cycle boat according to claim 1, wherein the rotary drive mechanism is a DC motor. 5. The water cycle boat according to claim 1, wherein the rotary drive mechanism is a combination of a human-operated foot pedal and a DC motor.