JPH0534320Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a recreational surfing boat.

Conventional Technology Conventional manual propulsion systems for leisure boats have mainly been oar systems, paddle wheel systems, and screw propeller systems.

Problems that the invention aims to solve However, conventional leisure boats using this method have had the problem of being unable to generate thrust by absorbing wave energy, and requiring a large amount of human power.

The purpose of the present invention is to solve these problems and provide a recreational wave boat that can absorb wave energy and generate thrust.

Means for Solving the Problems In order to solve the above problems, the recreational surfing boat of the present invention includes a boat body, propulsion wings along the width direction provided at the bow and stern parts of the bottom of the boat body. , a chair provided on the deck of the boat main body so as to be slidable along the bow and stern direction, a spring that urges the chair toward the stern side, a pulley provided on the deck bow of the boat main body, and one end. is connected to the chair, the middle part is wound around the pulley, and the other end has a cable body guided to the chair.

Effect: With this configuration, when a person sits on a chair and pulls the rope, the chair slides toward the bow against the spring. On the other hand, when the rope is pulled away, the chair slides toward the stern by the spring. When a person repeats this action, the person's weight shifts alternately to the bow and stern sides, resulting in the boat body making a pitching motion. The propulsion blades then move up and down in the water, absorbing wave energy and generating thrust.

For example, if there is a heading wave, the boat body will pitch and heave, and the propulsion blades will move up and down in the water, absorbing the energy of the waves and generating thrust, even without a person's weight shifting.

Embodiment An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 to 7, 1 is a recreational surfing boat according to the present invention, 2 is its main body, and has a pair of left and right trunks 3 and a deck 4 provided between the upper ends of these trunks 3. It is composed of. That is, the boat body 2 is configured in the form of a catamaran.

Reference numerals 5 and 6 denote propulsion wings along the width direction of the ship, which are provided between opposite side surfaces of the left and right fuselage parts 3 in the bow and stern parts, and are each attached to be swingable around a fixed shaft 7. These propulsion blades 5 and 6 also serve as structural members of the boat body 2, and in this embodiment, those having a rectangular shape in plan view are used. In addition, the propulsion blades 5, 6
Even if it is fixed to the boat body 2, the effects described below can be obtained.

8 is a spring device provided to hold the displaced propulsion blades 5 and 6 in a predetermined position (for example, a horizontal position);
As is particularly clear in FIGS. 5 and 6, the cylinder 9
The two upper and lower pitch springs 10 and 11 inserted into this cylinder 9, the lifting plate 12 held between both pitch springs 10 and 11, the upper rod 13 connected to the upper part of the cylinder 9, and the lifting and lowering The lower rod 14 is connected to the plate 12 and passes through the lower part of the cylindrical body 9. The upper end of the upper rod 13 is connected to the deck 4 via a pin joint 15, and the lower end of the lower rod 14 is connected to a pin joint 17 to a connecting piece 16 attached to the free ends of the propulsion blades 5, 6.
connected via.

A chair 20 is provided at the center of the deck 4 so as to be slidable along the bow and stern direction, and a pair of left and right guide pipes 21 are provided on the deck 4 and are attached to the guide pipes 21 via slide bearings 22. Reference numeral 23 denotes a spring that biases the chair 20 toward the stern side, one end of which is connected to the rear surface of the chair 20, and the other end of which is connected to the support column 2 erected at the stern of the deck 4.
Connected to 4. 25 is a pair of left and right columns erected at the bow of the deck 4, 26 is two upper and lower pulleys attached to both columns 25 via horizontal shafts, 27
is a pair of left and right weight shifting wires, one end of which is connected to the front of the chair 20, the middle part of which is wound around the pulley 26, and the other end of which is attached with a grip bar 28 and guided to the front of the chair 20; these chairs 2
A chair moving mechanism is constituted by the weight shifting wire 27. Therefore, as shown in FIGS. 1 and 2, a person 29 sits on a chair 20 and holds a nigiri stick 2.
8 and pull the weight shifting wire 27, the chair 20 slides toward the bow against the spring 23, and when pulled apart, the chair 20 is pulled by the spring 23 and slides toward the stern.

Reference numeral 32 denotes a pair of left and right steering pedals provided on the chair 20. A vertical shaft 33 is rotatably provided inside the chair 20, and connecting rods 34 are provided extending from both sides of the vertical shaft 33. 35. Reference numerals 36 and 37 are pillars rotatably erected at the center of the bow and stern of the deck 4, with horizontal shafts 38 protruding from the upper and lower parts of both sides, and pulleys 39 are attached to each horizontal shaft 38. It is being A pair of left and right endless steering wires 4 are connected between the facing pulleys 39 on the bow side and the stern side.
0 is wound, and the connecting rod 34 is connected to the middle of this endless steering wire 40. Reference numeral 41 denotes a rudder connected to the stern support 37, and these steering pedals 32 to 41 constitute a steering mechanism. Therefore, as shown in FIGS. 2 and 3, when the person 29 sitting on the chair 20 strongly depresses the steering pedal 32 to the right or to the left, the movement of the steering pedal 32 is caused by the steering pedal 41.
This causes the rudder 41 to swing left and right.

With this configuration, a person 29 sitting on the chair 20 operates the weight shifting wire 27, slides the chair 20, and shifts his/her weight alternately toward the bow and the stern, thereby causing the boat body 2 to make a pitch movement. I will do it. Then, the propulsion blades 5 and 6 move up and down in the water and swing, absorbing wave energy and generating thrust.

When there are waves, the boat body 2 is shaken by the waves, so that the boat body 2 pitches and heaves, for example in opposite waves, and the propulsion blades 5 and 6 move underwater even without a person's weight shifting. It moves up and down, absorbing wave energy and generating thrust.

In this embodiment, the boat body 2 is configured as a catamaran type boat, but by doing so, a larger wing span can be secured with a simpler structure than when a propulsion wing is provided on a monohull type boat body. .

Effects of the invention As described above, according to the invention, wave energy can be absorbed to generate thrust, and the human power consumption for propulsion can be reduced. You can also enjoy techniques for better utilizing wave energy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a side view of the recreational wave boat, Fig. 2 is a plan view of the same, Fig. 3 is a plan view of the steering mechanism, and Fig. 4 is an enlarged side view of the chair. 5 is an enlarged side view of the propulsion blade, and FIG. 6 is a sectional view of the spring device. 1... Leisure wave riding boat, 2... Boat body, 5, 6... Propulsion blade, 20... Chair, 23...
...Spring, 26...Pulley, 27...Wire for weight transfer.

Claims (1)

[Scope of utility model registration request] A boat body, propulsion vanes provided on the bow and stern of the bottom of the boat body along the width direction of the boat, a chair provided on the deck of the boat body so as to be slidable along the bow and aft direction; A spring that biases the chair toward the stern side, a pulley provided at the bow of the deck of the boat body, one end connected to the chair, a middle part wound around the pulley, and the other end attached to the chair. A recreational surfing boat characterized by having a cable body that is guided to a certain point.