JP2019199255A - Man-power propulsion boat - Google Patents

Abstract

To provide a man-power propulsion boat reducing burden of a user by eliminating conventional common motions such as rowing with oars and rotating a paddle or a screw by stepping on pedals when having a boat proceed as well as obtaining enjoyment by the user's unique movement and obtaining sufficient propulsion power to increase speed.SOLUTION: A man-power propulsion boat of this invention includes: a board 1 provided with a pair of straps 2 into which feet are inserted with an operator Q standing sideways; an operating pole 4 provided standing on the board 1; a fin state skeg tail unit 5 extending in a lower back direction in a rear lower unit of the boat; and a propulsion plate 7 connected through a shaft 6 on the lowest unit of the skeg tail unit 5, and in addition, the operating pole 4 is provided with a rectangular plate 8 of a prescribed length arranged along the proceeding direction of the board 1 on its top end, and having handles 9A, 8B on both end units of the rectangular plate 8.SELECTED DRAWING: Figure 1

Description

  The present invention is used, for example, for marine sports / leisure on the beach side and the like, and for boating, etc., when advancing the boat, it is scooped with all or stepped on a pedal, paddle or screw This is a human-powered boat that can reduce the burden on the user by eliminating the conventional general operation of rotating the wheel, and can obtain a sufficient propulsion force that speeds up while enjoying the unique movement of the user Is.

  In addition, by connecting multiple boats, it is related to human power propulsion boats that allow multiple users to perform unique movements together, so that all the multiple users can enjoy and get enough propulsion. is there.

  In general, when advancing a boat, for example, the boat is hit with an oar, or a pedal is pushed and a paddle or a screw is rotated to obtain a propulsive force of the boat.

  Moreover, as shown in Patent Document 1, when a boat is advanced using an oar, the oar is bent from a place where the oar hits, and the oar of the boat in which the boat advances forward when the oar is rolled up is disclosed.

  That is, the oar is separated from the place where it hits the fulcrum, and a pair of gears having a shaft hole at the center is provided at that place and fixed to each separated oar. The upper fixing plate and the lower fixing plate are tightened by passing the upper and lower fixing plate tightening bolts into the gear shaft hole so that the two gears can be bent freely. The upper fixing plate and the lower fixing plate are configured by providing a pair of holes through which the all mounting bolts pass and a support pipe.

  In addition, Patent Document 2 discloses a rowing boat that is propelled by driving a pair of left and right pedals, and the left pedal can drive the left paddle and the right pedal can drive the right paddle independently. Thus, by changing the rotation speed and rotation direction of the left and right pedals, a rowing boat capable of changing the normal direction and changing the direction of the fixed position with a simple device configuration without a rudder is disclosed. ing.

JP 2000-198492 A JP 2002-205690 A

  As described above, for advancing a boat, for example, a rowing operation using an oar is necessary, and this operation has been a burden on the user of the boat. Further, the operation of rowing using oars is general in itself, and lacks interest.

  Furthermore, as shown in the above-mentioned Patent Document 1, when a boat is advanced using an oar whose fulcrum is bent, the boat user is similarly burdened, and a rowing operation using the oar is common. It was not interesting.

  Further, as shown in Patent Document 2 described above, when a boat is advanced by stepping on a pedal and rotating a paddle, the operation is a burden on the user of the boat. In addition, the operation of stepping on the pedal is general in itself and lacks interest.

  Therefore, the present invention has been created in view of the existing circumstances as described above, and when advancing a boat, it is generally used that a paddle or a screw is rotated by stroking using an oar or stepping on a pedal. An object of the present invention is to provide a human-powered propulsion boat that can reduce the burden on the user by eliminating unnecessary movements, and can obtain a sufficient propulsive force with speed while enjoying the unique movement of the user.

  In addition, by connecting a plurality of boats, a human-powered propulsion boat is provided that allows a plurality of users to perform unique movements together so that all the users can enjoy and obtain sufficient propulsion. Also aimed.

  According to the first aspect of the present invention, there is provided a board having a pair of straps into which an operator stands while standing sideways, an operation pole standing on the board, and a rear lower part of the board. In a human-powered propulsion boat having a fin-like skegtail portion extending rearwardly and a propulsion plate connected to the lowermost portion of the skegtail portion via a shaft, the operation pole is at the upper end of the board in the direction of travel of the board The above-mentioned problems have been solved by providing a rectangular plate of a predetermined length that is disposed along the edge and attaching handles to both ends of the rectangular plate.

  According to the human-powered propulsion boat according to claim 1, the operator stands on the board sideways so that the left and right feet are along the traveling direction of the board, and puts his feet into the pair of straps on the board to operate the pole. The board can be propelled through the movement of the operator's pitching by grasping the front and rear handles with both hands.

  For this reason, it is possible to obtain sufficient propulsive force that speeds up while reducing the burden on the user by eliminating the conventional general operation of scoring with all or turning the paddle or screw by stepping on the pedal. Can do. In addition, the operator can obtain a sufficient driving force with speed while enjoying the pitching operation of the operator.

  The invention of claim 2 according to the present invention solves the above-mentioned problem by the board itself having buoyancy and being formed so that the front and rear are inclined or curved in an upward warping shape.

  According to the human-powered propulsion boat according to claim 2, the influence of wave-making resistance, frictional resistance, pressure resistance, etc. on the board can be suppressed as much as possible by its own buoyancy, and the board sinks in the traveling direction simultaneously. Can be suppressed.

  In the invention of claim 3 according to the present invention, the board has a floater on the lower surface, thereby solving the above-mentioned problems.

  According to the human-powered propulsion boat according to the third aspect, since the buoyancy is maintained by the floater provided on the lower surface of the board, it is possible to further suppress influences such as wave resistance, friction resistance, and pressure resistance on the board.

  According to a fourth aspect of the present invention, the pair of straps are arranged at predetermined intervals along the board traveling direction and are movable in the direction along the board traveling direction. Solved the problem.

  According to the human-powered propulsion boat according to claim 4, the distance between the pair of straps can be easily adjusted according to the distance between the two feet with individual differences of the operator to match the distance between the two feet with individual differences. it can.

  The invention of claim 5 according to the present invention solves the above-described problem by allowing the operation pole to tilt in a direction orthogonal to the traveling direction of the board.

  According to the human-powered propulsion boat according to the fifth aspect, when the board (boat body) rolls on the operator side, the operator's body can be prevented from being pushed and dropped by the operation pole.

  According to a sixth aspect of the present invention, the operator stands on the board sideways so that the left and right feet are along the direction of travel of the board, and puts his / her feet into a pair of straps on the board before and after the operation pole. The above-mentioned problem has been solved by the board propelling through the movement of the operator holding the handle of both of the two hands and pitching the operator.

  According to the human-powered propulsion boat according to the sixth aspect, it is possible to provide a human-powered propulsion boat that speeds up while reducing the feeling of rowing.

  Specifically, it eliminates the conventional general operation of scoring with all or turning the paddle or screw by stepping on the pedal, reducing the burden on the user, and providing sufficient propulsive power that speeds up. Can be obtained. In addition, the operator can obtain a sufficient driving force with speed while enjoying the pitching operation of the operator.

  According to the seventh aspect of the present invention, the pitching operation of the operator is performed by the operator pulling up the rear handle while pushing down the front handle of the board and applying weight to the front foot. Simultaneously pulling up the rear foot, pushing down the front side of the board and raising the back side of the board, pulling up the front handle while pushing down the handle on the back side of the board, and the rear foot The above-mentioned problem has been solved by simultaneously performing an operation of pulling up the front foot while applying weight, and alternately performing the pushing-down on the rear side of the board and the raising action on the front side of the board.

  According to the human-powered propulsion boat according to the seventh aspect, the propulsive force can be easily obtained by the reciprocating movement (principle principle) of the body weight (center of gravity) by the pitching operation of the operator.

  According to the eighth aspect of the present invention, the shaft connected horizontally via the skeg tail portion connected to the board bends up and down by the pitching operation of the operator, and at the same time, the propulsion plate ahead of the shaft The board was propelled by swinging up and down like a flapping motion, thereby solving the above-mentioned problems.

  According to the human-powered propulsion boat according to claim 8, due to the bending of the shaft, the propulsion plate has a phenomenon such as the movement of the body when the dolphin tail fin is moved, and the propulsion plate has a penguin movement. A flapping movement like a wing (flipper) occurs, and the propulsive force can be amplified in the same way as the sailfish tail fly, the world's fastest fish swimming over 100 km / h.

  The invention of claim 9 according to the present invention solves the above-mentioned problems by the propulsion plate on the lower surface side of the board being formed in a substantially crescent shape having a wide width in a plan view.

  According to the human-powered propulsion boat according to the ninth aspect, it is possible to efficiently obtain a propulsive force by suppressing the area of the propulsion plate and utilizing the bending.

  The invention of claim 10 according to the present invention solves the above-described problems by allowing the board to be vertically or laterally connected via a connecting device.

  According to the human power propulsion boat according to the tenth aspect, by connecting a plurality of the manpower propulsion boats, it is possible to easily provide a manpower propulsion boat that can be crammed and enjoyed by a plurality of people together.

  For example, when a plurality of human-powered propulsion boats are connected in the horizontal direction, when the operator performs a pitching motion, the same motion as that of his own boat is reflected in the other boats. Therefore, it is possible to perform an operation of pitching by a plurality of persons while having fun with each other.

  In addition, when multiple human-powered propulsion boats are connected in the vertical direction, if pitching is performed with their own boats raising the front and lowering the rear, the rear of the front boat will rise equally and the front of the rear boat will be equivalent. Since the movement of lowering is reflected in other boats, the operators can perform the action of pitching with multiple persons while enjoying their breath carefully.

  When a plurality of human-powered propulsion boats are connected in the horizontal direction, the same movement as that of their own boat is reflected in the other boats, so that the operators can relatively easily match each other. On the other hand, when multiple human-powered propulsion boats are connected in the vertical direction, if their own boat raises the front and performs pitching to lower the rear, the rear of the front boat rises equally and the front of the rear boat Since the movement of lowering is reflected in other boats, the movement of each boat is different, and it becomes difficult for operators to match each other and skill is required for the operation.

  The invention of claim 11 according to the present invention is a board provided with a long tread board that is arranged along the direction of travel of the board and swings by placing both feet while the operator is standing sideways, An operation pole erected at the center of the long tread plate, a propulsion plate arranged at the lower rear of the board, and a transmission mechanism that transmits the swing of the long tread plate as a vertical swing motion of the propulsion plate The operation pole is provided with a rectangular plate of a predetermined length arranged along the traveling direction of the board at its upper end, and a handle is attached to both ends of the rectangular plate. As a result, the above-mentioned problems have been solved.

  According to the human power propulsion boat according to the eleventh aspect, when the operator steps on the pedal-type step board, the propulsion force can be easily transmitted to the propulsion board through the transmission mechanism as a vertical swing motion. Can be obtained.

  According to a twelfth aspect of the present invention, the board has a swingable hydrofoil substantially at the center of the lower surface of the board, and the hydrofoil is inclined at the upper surface, the lower surface is horizontal, and the front part in the traveling direction (suction) A flat cylindrical water flow acceleration box with a smaller cross-sectional area at the rear (discharge side) than the side), and a horizontal plate with the same width as the box, with the lower part straight and the upper part curved upward The above-described problems have been solved.

  According to the human-powered propulsion boat according to claim 12, the flow rate of water passing through the box is reduced to increase the flow velocity, and at the same time, a lower pressure is generated compared to the low speed portion (Venturi effect) and the water flow velocity is increased. By increasing the pressure, the pressure is reduced (Bernoulli's theorem).

  Further, when this accelerated water flow passes along the curved upper part of the horizontal plate (main wing), the horizontal plate (main wing) is drawn upward by a reaction when the water flow is drawn along the curved surface (Coanda effect). And the lower part of the horizontal plate (main wing) by lowering the upper pressure (Bernoulli's theorem) by making the water flow velocity of the curved upper part of the horizontal plate (main wing) larger than the water flow velocity of the horizontal lower part And the static pressure difference between the upper part and the upper part is enlarged, and the lift generated by the generation of the circulation (circular integral of the flow velocity) around the horizontal plate (main wing) (Jukovsky's theorem) can be increased.

  The invention of claim 13 according to the present invention solves the above-described problems by connecting the lower surfaces of the box and the horizontal plate (main wings) so as to form straight lines.

  According to the human-powered propulsion boat according to the thirteenth aspect, the water flow resistance in the traveling direction can be suppressed as much as possible on the lower surfaces of the box and the horizontal plate (main wing).

  According to the fourteenth aspect of the present invention, the horizontal plate (main wing) is connected to the center of the rear portion (discharge side) of the box at an arbitrary elevation angle, thereby solving the above-described problem.

  According to the human-powered propulsion boat according to claim 14, since the horizontal plate (main wing) has an angle of attack, when the accelerated water flow passes along the curved upper portion of the horizontal plate (main wing), the water flow becomes a curved surface. The horizontal plate (main wing) is pulled upward due to the reaction when it is drawn along (Coanda effect), and the circulation (circumferential integration of the flow velocity) around the horizontal plate (main wing) occurs (Zhukovsky's theorem). Lift can be generated efficiently.

  According to a fifteenth aspect of the present invention, the hydrofoil is connected by a shaft in the forward and backward direction, and a bearing is provided at the center of the shaft so that the hydrofoil can be rotated vertically in the forward direction. The problem mentioned above was solved by connecting to the lowest part of the fin attached to the perpendicular direction.

  According to the human-powered propulsion boat according to claim 15, the shaft connecting the hydrofoil forward and backward flies in parallel with the water flow received from the traveling, and is lifted at a stable angle of attack without being affected by the hull propelled by pitching. Can occur. In addition, heaving can be suppressed as the propulsion plate moves up and down.

  According to a sixteenth aspect of the present invention, an accordion-shaped block is provided on the lower surface of the board so that air accumulates from the advancing direction, and an elevation angle is given to a portion where the block contacts with water so as not to become too resistive. As a result, the above-described problems have been solved.

  According to the human-powered propulsion boat according to the sixteenth aspect, the resistance of the bottom of the ship can be reduced by the lifting force accompanying the progress and the air mixed in the bottom surface. Moreover, in order to make pitching smooth, it becomes suppression of the attraction | suction of the water surface by the Coanda effect which generate | occur | produces in the curved bottom face.

  With the human-powered propulsion boat according to the present invention, when advancing the boat, the conventional general operation of scoring with the oar or rotating the paddle or screw by stepping on the pedal is eliminated to reduce the burden on the user. At the same time, it is possible to provide a human power propulsion boat that can obtain a sufficient propulsive force with speed while enjoying the unique movement of the user.

  In addition, by connecting a plurality of boats, a human-powered propulsion boat is provided that allows a plurality of users to perform unique movements together so that all the users can enjoy and obtain sufficient propulsion. You can also

It is a perspective view showing composition of a manpower propulsion boat in one embodiment of the present invention. It is a top view which shows the structure of the propulsion plate connected to the lowest part of the skeg tail part via the shaft. It is a front view which shows the structure of a manpower propulsion boat. It is a disassembled perspective view which shows the attachment structure of an operation pole. It shows an example of pitching exercise by the operator, (a) is a side view in the horizontal state, (b) is a side view when the weight is moved backward, (c) is a side view when returning to the horizontal state, (D) is a side view when the weight is shifted forward. It is a perspective view which shows the structure of the human power propulsion boat in the other example of this invention. It is a perspective view in the state where a board is connected horizontally by a connecting instrument. It is a perspective view which shows the structure of the packing cube used for the horizontal connection of a board. The board is shown in a laterally connected state, (a) is an exploded perspective view showing a state where the attachment for connection is attached to the board, and (b) is a perspective view showing a state where the boards are laterally connected using a packing cube. . It is a side view of the state which connected the board longitudinally with the clamp unit. It shows an example of a clamp unit for vertical connection, (a) is a side view showing the horizontal state of the board when folded in a V shape via a central hinge, (b) via a central hinge The side view which shows the mountain state of the board when leveling is shown, (c) is a side view which shows the valley state of the board when it folds into V shape too much via a center hinge. It is a perspective view which shows the structure of the pedal stepping type human power propulsion boat in other embodiment of this invention. It is a side view explaining the principle of operation of a pedal foot type human power propulsion boat in other embodiments of the present invention. It is a perspective view which shows the structure of the pedal stepping type human power propulsion boat in other embodiment of this invention. It is a side view explaining the principle of operation of a pedal foot type human power propulsion boat in other embodiments of the present invention. The modification of a propulsion board is shown, (a) is a perspective view, (b) is a rear view. It is a perspective view which shows the structure of the human power propulsion boat which attached the hydrofoil for increasing a lift. An example of a hydrofoil for increasing lift is shown, (a) is a perspective view, (b) is a side view, and (c) is a cross-sectional view for explaining the principle of generation of lift. The other example of the hydrofoil for increasing a lift is shown, (a) is a perspective view, (b) is a side view, and (c) is a sectional view for explaining the principle of generating lift. The structure of the manpower propulsion boat which provided the bellows-like block on the bottom face of the board and reduced water surface resistance is shown, (a) is a sectional side view, (b) is a perspective view.

<Embodiment>
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

<Overall configuration of boat>
As shown in FIGS. 1 and 3, the human-powered propulsion boat according to the present invention includes a pair of straps 2 into which the operator Q (see FIG. 5) stands while standing horizontally, for example, polyurethane. A board 1 made of foam or inflatable material and having a pair of left and right floaters 3 on the lower surface, and fixed in the direction of travel standing upright in the center of the board 1 and movable in the lateral direction (operator An operation pole 4 (see FIG. 4) that can be pushed so that the operator Q is not pushed down when the hull rolls toward the Q side, and a fin-like skeg tail portion 5 that extends rearwardly in the lower rear part of the board 1; The area is generally composed of a propulsion plate 7 (see FIG. 2) that has a small area and is connected via a pair of shafts 6 tapered horizontally at the bottom of the skeg tail portion 5.

  The operation pole 4 can tilt in a direction perpendicular to the traveling direction of the board 1, and has a rectangular plate 8 of a predetermined length arranged along the traveling direction of the board 1 at the upper end thereof. Handles 9 </ b> A and 9 </ b> B are attached to both ends of the rectangular plate 8. The operation pole 4 is formed so that the operation pole 4 itself can be expanded and contracted according to the height of the operator Q.

  Further, the board 1 has buoyancy and is formed so that the front and rear are inclined upward (see FIG. 1) or curved (see FIG. 6).

  The pair of straps 2 are arranged at predetermined intervals along the traveling direction of the board 1 (see FIGS. 1 and 6), and are movable in the direction along the traveling direction of the board 1 (see FIG. 1). 1).

  As shown in FIG. 2, the propulsion plate 7 on the lower surface side of the board 1 is formed in a substantially crescent shape having a wide width in a plan view. Further, the pair of shafts 6 gradually expands backward from the skeg tail portion 5, and the convex curved side at the center of the propulsion plate 7 is connected to each tip of the shaft 6.

  The operation pole 4 is attached to the upper surface of the board 1 so that the operation pole 4 itself is fixed in the traveling direction and movable in the lateral direction as described above.

  That is, as shown in FIG. 4, the mounting jig 10 has a rectangular frame-shaped rail 11 having a groove 11a in the longitudinal direction attached to the upper surface of the board 1 and is slidable in the groove 11a. A pair of square nut-shaped sliders 12, a base 14 having long grooves 14 b on both sides so as to be screwed and fixed to the slider 12 inside the groove 11 a by bolts 13, and a U-shape attached to the base 14 so as to be raised and lowered. And a block-shaped holder 15. The base 14 can move on the rail 11 and is fixed with screws by a slider 12 and a bolt 13 at a preferred position.

  On the upper surface of the base 14, a pair of hinges 14 a are pivotally attached so that the lower end of the operation pole 4 can be tilted in a direction orthogonal to the traveling direction. Further, the holder 15 is rotatably attached to both side surfaces of the base 14 by support shafts 15 b that project from positions corresponding to the central axis of the operation pole 4. An arcuate recess 15a for holding the operation pole 4 from one side when the holder 15 stands is formed on the upper surface of the outer end side of the holder 15.

  As shown in FIGS. 1 and 4, the operation pole 4 can be tilted in a direction perpendicular to the traveling direction of the board 1 in a state where the recess 15 a of the holder 15 is removed from the operation pole 4. Further, when the recess 15a of the holder 15 is directed to the operation pole 4 and the operation pole 4 is held by the recess 15a, the tilt of the operation pole 4 in the direction perpendicular to the traveling direction of the board 1 is prevented. Will be.

<Promotion mechanism>
Next, the principle of the propulsion operation will be described. First, the operator Q stands sideways on the board 1 so that the left and right feet are along the traveling direction of the board 1, and the operator Q rests on the pair of straps 2 on the board 1. The board 1 is propelled through the movement of the operator Q to pitch the handles 9A, 9B before and after the operation pole 4 with both hands.

  That is, as shown in FIG. 5A, the operator Q stands sideways with respect to the traveling direction, holds the handles 9A and 9B on the operation pole 4, and puts his / her feet on the strap 2 on the board 1. As shown in FIG. 5 (b), while pushing down the rear handle 9B, the front handle 9A is pulled up, and at the same time, the weight is applied to the rear foot, the front foot is pulled up, and the board 1 is moved backward. Pitch so that it goes down and the front goes up.

  Due to the pitching action of the operator Q, the skeg tail portion 5 connected to the board 1 is lowered, the horizontally connected shaft 6 is swung down, and the propulsion plate 7 is further swung down and propelled.

  Next, as shown in FIGS. 5C and 5D, in order to swing the propulsion plate 7 up, while pushing down the front handle 9A, the rear handle 9B is pulled up and at the same time on the front foot. Applying weight, pulling up the back foot, pitch the board 1 so that the back is raised and the front is lowered.

  Due to the pitching action of the operator Q, the skeg tail portion 5 connected to the board 1 is also raised, the shaft 6 is swung up, and the propulsion plate 7 is also swung up.

  By repeating this operation, the board 1 (hull) with low resistance floated by the floater 3 is firmly propelled by an efficient system with a small area of the propulsion plate 7.

  Further, by performing the operator's pitching operation alternately and continuously, the shaft 6 connected horizontally via the skeg tail portion 5 connected to the board 1 bends up and down, and at the same time, the propulsion plate ahead of it. 7 swings up and down like a flapping motion of the wing, and the board 1 propels.

  That is, due to the bending of the shaft 6, a phenomenon such as a body movement for moving the dolphin tail fin is added to the propulsion plate 7, and the propulsion plate 7 flutters like a penguin wing (flipper). The propulsive force is amplified by a mechanism similar to that of the sailfish tailfish, which is the world's fastest fish swimming over 100 km / h.

  Pitching of the board 1 is set to be slightly over 10 degrees from the water surface because the propulsion plate 7 jumps out from the water surface if it goes too far up, and the efficiency becomes worse if it goes too far down. With this setting, the operator Q steps on the handles 9A and 9B by 15 centimeters to the left and right, lifts them up by about 5 centimeters, the bottom of the skeg tail 5 is less than 40 centimeters, and the propulsion plate 7 is 50 centimeters Shake weakly. That is, a small amount of motion is amplified, and the propulsion plate 7 is caused to perform a large work.

  However, in this case, since it is difficult to move the propulsion plate 7 having a large area even if the principle of the insulator is considered, the propulsion force is efficiently obtained by suppressing the area of the propulsion plate 7 as much as possible and utilizing the bending. ing. In addition, since it is easy to ride on waves by accelerating and can be slid, if the waves are coming from offshore, they can be lightly moved by the propulsion plate 7 so that they do not ride on them and do not pitch and do not delay the waves. It is possible to get back on the wave by just pitching.

  Note that FIG. 5 illustrates an operation in which the operator Q pitches while standing on the board 1, but the present invention is not limited to this. For example, the operator Q has handles 9A at both ends. , 9B may be placed on the rectangular plate 8 and pitched while sitting.

<Board connection structure>
The board 1 is capable of vertical connection or horizontal connection via a connecting device to be described later. That is, assuming that the operator Q pitches by a plurality of people, the board 1 has a configuration that can be connected vertically and horizontally.

  When a plurality of manpower propulsion boats are connected in the horizontal direction, when the operator Q performs an action of pitching, the same movement as the movement of his boat is reflected in the other boats. You can breathe relatively easily.

  On the other hand, when a plurality of human-powered propulsion boats are connected in the vertical direction, the boat of the operator Q raises the front and lowers the rear so that the rear of the front boat rises equally and the front of the rear boat Since the movements of the lowering are equally reflected on other boats, the movements of the boats are different, and it becomes difficult for the operators Q to match each other, and the operation requires skill.

  As a specific connection method, for example, simplified horizontal connection using a connection bar 20 (connection device) having a hanger structure is employed. As shown in FIG. 7, the connecting bar 20 forms a bent portion 22 by bending both ends of a long arm 21 inward toward each other inward, and an outer surface is formed on the upper surface of the bent portion 22. A hook 22A and a rope fastening hole 22B are provided. A pair of left and right sliders 23 are slidably attached along the arm 1 in the middle of the arm 21, and an inner hook portion 23A is provided thereon.

  When the two boards 1 are laterally coupled, as shown in FIG. 7, the two boards 1 are arranged side by side, and the coupling bar 20 is directed to the lower side of the recess 24 formed on each side surface of each board 1 in the width direction. The bent portions 22 at both ends of the arm 21 are attached to the concave portions 24 positioned outward from each other while being bent, and the pair of left and right sliders 23 in the middle of the arm 21 are moved away from each other. The inner hook portion 23A of the slider 23 is suspended from the concave portion 24 that is positioned opposite to the concave portion 24.

  Then, one end of the rope 25 is tied to the rope fastening hole 22B, once wound around the inner hook portion 23A and forcibly retracted, the other end side of the rope 25 is tied to the outer hook portion 22A and fixed. To do. This connection is similarly applied to the rear side of the board 1. As a result, if two boats on the left and right sides pitch one boat, the other boat pitches in the same manner, and the pitching of each other is reflected.

  As another connection method, as shown in FIGS. 8 and 9, a clam cleat 26 formed by arc-shaped or arch-shaped teeth for fitting and locking the rope 25 is provided on the upper surface, and left and right A simple lateral connection using a block-shaped packing cube 30 provided with a centering recess 27 and a rope insertion through hole 28 on both sides is adopted.

  When the two boards 1 are laterally connected, as shown in FIGS. 9A and 9B, first, the detachable connection attachment 36 is attached to the tip of each board 1, for example, the connection attachment 36 of the connection attachment 36. The pair of left and right fitting protrusions 36a at the rear end are attached by being inserted into the pair of left and right fitting holes 1a at the front end of the board 1, respectively. Two guide pipes 31 exist in parallel on the front end side of the connection attachment 36 in the lateral direction.

  Then, the two boards 1 are arranged side by side, and the connecting pipes 33 having the fixing warts 33a at both ends are inserted into the guide pipes 31 and attached between the boards 1 so as to form a pair of front and rear. At this time, the fixed warp 33 a engages with a locking hole 31 a formed in the guide pipe 31.

  Then, the joint packing cube centering convex portion 34 formed on the mutually opposing side surfaces of the coupling attachment 36 is aligned with the centering concave portion 27 of the packing cube 30, and the rope 25 is coupled with the clam cleat 26 facing upward. Rotate from top to bottom along the rope guide gap 35 formed on the cut side in front of the attachment 36 for use.

  Next, as shown in FIG. 9 (a), the rope 25 hanging down is turned upward while being along the rope guide gap 35 from under the cut in front of the connection attachment 36 of another boat.

  Next, the rope 25 that has come out is pulled and adjusted as shown in FIG. 9B while adjusting so that the connecting tool centering convex part (not shown) fits into the centering concave part 27. The rope 25 is sandwiched between clam cleats 26 at the top of the packing cube 30. This is performed before and after the board 1 to perform temporary connection.

  Since the temporarily connected connecting attachments 36 are already firmly aligned, the connecting pipe 33 set on the guide pipe 31 is pulled out and inserted into the guide pipe 31 of the other boat to fix the connecting pipe 33. Slide 33a into the locking hole 31a of the guide pipe 31 until it fits.

  As shown in FIG. 8, the packing cube 30 is provided with guide grooves 29 of the rope 25 at the corners thereof. By disposing the rope 25 in the guide groove 29, the displacement of the rope 25 can be shifted. This prevents the board 1 from being temporarily connected.

  On the other hand, in the case of vertical connection, as shown in FIGS. 10 and 11, the clamp unit 40 sandwiches two guide pipes 31 and fixes them with screws 41, and the other boat side also attaches two guide pipes 31. It is pinched and fixed with screws 41. The clamp unit 40 that connects the front and the rear has a hinge 42 at the center, and has a stopper 43 that prevents excessive shaking. This is attached to two left and right cuts of the guide pipe 31, respectively.

  As a result, the movement in which the boat of the operator Q raises the front and lowers the rear, the rear of the front boat rises equally and the front of the rear boat falls equivalently is reflected in the other boats. . Further, the pitching operation in which the boat of the operator Q lowers the front and raises the rear causes the movement of the rear of the front boat to be lowered equally and the front of the rear boat to rise equally is reflected in the other boats.

  In addition, the excessive shaking prevention stopper 43 of the clamp unit 40 prevents the two boats from being folded twice.

  For example, as shown in FIG. 11A, in the state where both boards 1 are arranged horizontally, the stopper acts on the over-swaying stopper 43 when it is folded into a V shape via the central hinge 42. There is no free state.

  As shown in FIG. 11 (b), in a state where both boards 1 are arranged in a mountain shape, the two boards 1 become horizontal via the central hinge 42, and the stopper acts on the lower side of the excessive shaking prevention stopper 43.

  As shown in FIG. 11 (c), in a state where both boards 1 are arranged in a valley shape, it is bent excessively into a V shape via a central hinge 42, and a stopper is placed on the upper side of the excessive shaking prevention stopper 43. Works.

<Other Embodiments of the Present Invention>
Next, another embodiment of the present invention will be described with reference to the drawings. It should be noted that the same components as those of the above-described embodiment are simply denoted by the same reference numerals, and detailed description thereof is omitted or simplified.

  In this embodiment, as shown in FIG. 12 and FIG. 13, the board 1 formed in a boat shape and both feet are placed with the operator Q standing sideways along the traveling direction of the board 1. A long pedal-type stepping plate 50 to be swung is provided, and an operation pole 4 having the above-mentioned handles 9A and 9B at the upper end is erected in the center of the stepping plate 50. And the transmission mechanism 51 which transmits rocking | fluctuation of the tread board 50 as a motion of the rocking | fluctuation of the propulsion board 7 arrange | positioned in the back lower part of the board 1 is provided. The board 1 is formed in a ship shape.

  As shown in FIG. 12, in the transmission mechanism 51, one end side of a rectangular loop-shaped crank arm 52 is fixed to the upper side of a stepping plate 50 that can be swung by a lower support shaft 50A and curved upward. The above-described skeg tail portion 5 is fixed to the other end side of the crank arm 52.

  As shown in FIG. 13, the operator Q stands sideways with respect to the traveling direction, grasps the handles 9 </ b> A and 9 </ b> B on the operation pole 4, and puts his / her feet on the footboard 50 on the board 1. When the rear handle 9B is pushed down in the direction of arrow A, the front handle 9A is pulled up, and at the same time, the weight is applied to the rear foot and the tread plate 50 is depressed in the direction of arrow B. The skeg tail portion 5 connected to 52 descends in the direction of arrow C, the horizontally connected shaft 6 swings down, and the propulsion plate 7 further forward swings down in the direction of arrow H and propels.

  On the other hand, in order to swing up the propulsion plate 7, while pushing down the front handle 9 </ b> A in the direction of arrow E, the rear handle 9 </ b> B is pulled up, and at the same time, the weight is applied to the front foot and the rear foot is pulled up. When the tread plate 50 is stepped down in the direction of arrow F, the skeg tail portion 5 connected to the crank arm 52 rises in the direction of arrow G by the lever principle, and the horizontally connected shaft 6 swings up, and the propulsion plate ahead of it. 7 is also swung up in the direction of arrow D and propelled. As described above, the board 1 (hull) with low resistance is firmly propelled by an efficient system with a small area of the propulsion plate 7 as described above.

  FIG. 14 shows a modification of another embodiment of the present invention. In this case, in the transmission mechanism 51, the above-described support shaft 50 </ b> A is disposed on the upper side of the tread plate 50. Then, an L-shaped bent end of a linear crank arm 52 is pivotally attached to the lower side of the tread plate 50 corresponding to the support shaft 50A. The skeg tail part 5 is swingable back and forth at a substantially intermediate position by a support shaft 5A, and the upper end of the skeg tail part 5 is pivotally attached to the rear end of the crank arm 52. Moreover, in this modification, the shaft 6 becomes one and is connected from the skeg tail part 5 toward the back.

  As shown in FIG. 15, the operator Q stands sideways with respect to the traveling direction, grasps the handles 9 </ b> A and 9 </ b> B on the operation pole 4, and puts his / her feet on the footboard 50 on the board 1. When the rear handle 9B is pushed down in the direction of arrow A, the front handle 9A is pulled up, and at the same time when the weight is applied to the rear foot and the tread plate 50 is stepped down in the direction of arrow B, According to the principle, the skeg tail portion 5 connected to the crank arm 52 swings in the direction of the arrow GG ′ with the support shaft 5A as the rotation axis, and the horizontally connected shaft 6 swings up, and the propulsion plate 7 ahead is also moved. Swing up in the direction of arrow D and push forward.

  On the other hand, in order to swing the propulsion plate 7 downward, while pushing down the front handle 9A in the direction of arrow E, the rear handle 9B is pulled up, and at the same time, the weight is applied to the front foot and the rear foot is pulled up. When the foot plate 50 is stepped down in the direction of arrow F, the skeg tail portion 5 connected to the crank arm 52 swings in the direction of the arrow CC ′ about the support shaft 5A as a rotation axis by the swing link and lever principle. The horizontally connected shaft 6 swings down, and the propulsion plate 7 ahead of the shaft 6 swings down in the direction of arrow H and propels.

  As described above, the board 1 (hull) with low resistance is firmly propelled by an efficient system with a small area of the propulsion plate 7 as described above.

  FIG. 16 shows a modified example of the propulsion plate 7, and when the propulsion plate 7 is swung down, a force is more easily applied (a propulsive force can be obtained). As shown in FIG. It is formed in a substantially crescent shape that is wide in plan view, and as shown in FIG. 16B, the left and right wings of the propulsion plate 7 are slightly inclined downward. Moreover, in this modification, the shaft 6 becomes one and is connected from the skeg tail part 5 toward the back.

<Mounting structure of hydrofoil with increased lift>
Next, the hydrofoil attachment structure with increased lift will be described in detail with reference to FIGS. It should be noted that the same components as those of the above-described embodiment are simply denoted by the same reference numerals, and detailed description thereof is omitted or simplified.

  The board 1 is designed to suppress the influence of wave resistance, frictional resistance, pressure resistance, etc. as much as possible by floating with the floater 3 as described above. A swingable hydrofoil 60 is attached to substantially the center of the lower surface of the.

  As shown in FIG. 17, the hydrofoil 60 is connected by a shaft 61 in the front-rear direction, and a bearing 61A is provided at the center of the shaft 61 so as to be able to rotate in the vertical direction of the direction of travel. To the bottom of the fin 62 attached in the vertical direction. As a result, the shaft 61 connecting the hydrofoil 60 back and forth follows the water flow received from the progression, and generates lift at a stable angle of attack without being affected by the hull propelled by pitching. Moreover, it becomes suppression of the heaving accompanying the vertical motion of the propulsion board 7. FIG.

  18 (a), (b), and (c), the hydrofoil 60 has an upper surface that is inclined, a lower surface that is horizontal, and a cross-sectional area from the front (suction side) to the rear (discharge side). A reduced flat tubular water flow acceleration box 63 and a horizontal plate (main wing) 64 having the same width as the box 63, a straight line at the lower part and a curved upper part at the upper part with respect to the traveling direction.

  Further, the lower surfaces of the box 63 and the horizontal plate (main wing) 64 are connected so as to be straight, and pass through the box 63 so that the accelerated water flow passes through the upper part of the main wing 64. Thereby, the static pressure difference between the lower part and the upper part of the main wing 64 is enlarged, and the lift is increased. Further, although the lower surface of the box 63 is horizontal, the upper surface has an angle of attack, so lift is also generated here (see FIG. 18C).

  That is, when the flow of water passing through the box 63 is throttled, the flow velocity is increased, and at the same time, a lower pressure is generated compared to the low speed portion (Venturi effect) and the water flow velocity is increased to reduce the pressure (Bernoulli's pressure). theorem). Further, when the accelerated water flow passes along the curved upper portion of the horizontal plate (main wing) 64, the horizontal plate (main wing) 64 is drawn upward by a reaction when the water flow is drawn along the curved surface (Coanda). Effect) and lowering the upper pressure (Bernoulli's theorem) by causing the water velocity of the curved upper portion of the horizontal plate (main wing) 64 to be larger than the water velocity of the lower horizontal portion (Bernoulli's theorem). ) The difference in static pressure between the lower part and the upper part of 64 is enlarged, and the lift generated by the generation of the circulation (circumferential integral of the flow velocity) around the horizontal plate (main wing) 64 (Zhukovsky's theorem) can be increased.

  As another modification, as shown in FIGS. 19A, 19B, and 19C, the water flow is accelerated toward the traveling direction of a thin plate-like horizontal plate (main wing) 65 that is curved upward with respect to the traveling direction. For this purpose, a box 63 having the same width as the main wing 65 with a shorter vertical side at the rear part (discharge side) than at the front part (suction side) in the traveling direction is reduced. The main wing 65 is connected to the center of the discharge side height of the box 63 at an appropriate angle of attack so that the accelerated water flow passes through the box 63 and the upper and lower portions of the main wing 65. Thereby, the lift is increased. Further, although the lower surface of the box 63 is horizontal, the upper surface has an angle of attack, so lift is also generated here (see FIG. 19C).

  Thus, the hydrofoil 60 with increased lift is formed by the above-described Venturi effect, Bernoulli's theorem, Coanda effect, Zhukovsky's theorem, and the like.

<Modification when water resistance on the bottom of the board is reduced>
In addition, as shown in FIGS. 20 (a) and 20 (b), the blocks 70 are divided into bellows from the advancing direction so that air accumulates on the bottom surface of the board 1. An elevation angle is given to the portion of the block 70 where the convex portion 71 comes into contact with the water so that resistance does not become too much, thereby reducing the resistance of the bottom of the ship by the lift force and air mixed in the bottom. In addition, since the pitching operation is performed smoothly, it is also possible to prevent water surface sticking due to the Coanda effect generated on the curved bottom surface.

  Moreover, when applying the said system to a general ship, air is ejected from the bow bottom part. If the air bubbles flowing in the bottom of the ship fill the block 70 with air from the front, the overflowing air flows backward from the water contact portion of the convex portion 71 of the block 70 and accumulates air in the next block 70. The air overflowing from the air travels along the convex portion 71 of the block 70 and flows backward.

  Thereby, an air layer is formed not only on the concave portion 72 of the block 70 but also on the convex portion 71, and the frictional resistance of the ship bottom can be reduced. In addition, if the air is blown to the place where the water flow received from the traveling is accelerated by using a pipe having a smaller cross-sectional area of the discharge portion than the suction portion by using the venturi effect, the energy of the bubble blowout can be saved.

<Application example>
(1) If an all attachment and a hook are provided in the human power propulsion boat of the present invention (when a large number of boards 1 are connected, they are also necessary for steering and reverse), a rowing boat is obtained.
(2) Windsurfing becomes possible if a windsurfing sail is connected to the handle pole joint of a manpowered boat.
(3) As mentioned above, surfing is possible, so you can enjoy surfing.
(4) Standing on the board 1, holding the rope with the handle from the motor boat facing the traveling direction, and pulling it, it becomes water skiing.

Water skis usually start from the water and are difficult to stand. However, according to the human-powered propulsion boat of the present invention, it starts from the surface of the water and is easy for beginners to enjoy without falling down.
(5) Similarly, if you pull it sideways, it becomes a wakeboard.
(6) If a rope is tied to a bar for a leash cord and pulled by a motor boat or the like, a so-called banana boat is obtained.
(7) When life savers go to rescue, they can paddling with a surfboard as before and reach the site earlier than before, and contribute to lifesaving.
(8) If a fence is attached and it is easy to move on the deck, it will become a leisure boat for sightseeing like a swan boat on a lake.

  Also, competition: Since the board has the characteristics described above, various competitions are possible. However, since it is not designed exclusively for marine sports, this board can contribute to the spread of various marine sports.

  In addition to time trials that compete for speed, scoring the beauty of the rowing pose, coolness, and oddity (for example, pitching the board by standing upside down), and the board 1 can be used for group battles.

  Since this boat has such a potential, it is possible to consider the fastest speed of a human-powered boat by researching and developing the skill of pitching movement of the operator Q and further improving the efficiency of gears.

  In addition to those already described above, the methods according to the above-described embodiments and modifications may be used in appropriate combination.

  In addition, although not illustrated one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

  In addition to being used as a boat that can be propelled efficiently by human power, the present invention is widely used in various fields as a lift improvement mechanism for various ships, a mechanism for suppressing the effects of wave resistance, friction resistance, pressure resistance, etc. on ships. It is what is used.

Q ... operator 1 ... board 1a ... fitting hole 2 ... strap 3 ... floater 4 ... operation pole 5 ... skeg tail part 6 ... shaft 7 ... propulsion plate 8 ... rectangular plate 9A ... handle 9B ... handle 10 ... mounting jig DESCRIPTION OF SYMBOLS 11 ... Rail 11a ... Groove 12 ... Slider 13 ... Bolt 14 ... Base 14a ... Hinge 14b ... Long groove 15 ... Holder 15a ... Recess 15b ... Support shaft 20 ... Connection bar 21 ... Arm 22 ... Bending part 22A ... Outer hook part 22B ... Rope Fastening hole 23 ... Slider 23A ... Inner hook part 24 ... Recess 25 ... Rope 26 ... Clam cleat 27 ... Centering recess 28 ... Rope insertion through hole 29 ... Rope 25 guide groove 30 ... Packing cube 31 ... Guide pipe 31a ... Locking hole 33 ... Connect pipe 33a ... Fixed warp 34 ... For joint packing cube centering Projection 35 ... Rope guide gap 36 ... Connection attachment 36a ... Fitting projection 40 ... Clamp unit 41 ... Screw 42 ... Hinge 43 ... Over-swaying stopper 50 ... Tread plate 50A ... Support shaft 51 ... Transmission mechanism 52 ... Crank arm 60 ... Hydrofoil 61 ... Shaft 61A ... Bearing 62 ... Fin 63 ... Box 64 ... Horizontal plate (main wing)
65 ... Horizontal plate (main wing)
70 ... Block 71 ... Convex part 72 ... Concave part

Claims (16)

  A board provided with a pair of straps to put the foot in a state where the operator is standing sideways, an operation pole standing on the board, and a fin-like skeg tail part extending downward at the lower rear of the board; A manpower propulsion boat having a propulsion plate connected to the bottom of the skeg tail portion via a shaft, the operation pole has a predetermined length arranged along the traveling direction of the board at the upper end thereof A human-powered propulsion boat comprising a rectangular plate and having handles attached to both ends of the rectangular plate.   The human-powered propulsion boat according to claim 1, wherein the board has buoyancy and is formed so that the front and rear are inclined or curved in an upward warping shape.   The human power propulsion boat according to claim 1 or 2, wherein the board includes a floater on a lower surface.   2. The human-powered propulsion boat according to claim 1, wherein the pair of straps are arranged at predetermined intervals along the traveling direction of the board and are movable in a direction along the traveling direction of the board.   The manpower-propulsion boat according to claim 1, wherein the operation pole is tiltable in a direction orthogonal to a traveling direction of the board.   On the board, the operator stands sideways with the left and right feet along the direction of travel of the board, puts his feet into a pair of straps on the board, grasps the handle before and after the operation pole with both hands, The human power propulsion boat according to claim 1, wherein the board propels through a pitching operation.   The pitching operation of the operator is performed simultaneously by the operator pulling up the rear handle while pushing down the front handle of the board and pulling the rear foot while applying weight to the front foot, Pushing down the front side of the board, raising the back side of the board, raising the front handle while pushing down the handle on the back side of the board, and raising the front leg while putting weight on the back leg The human-powered propulsion boat according to claim 6, wherein the boat is pushed at the same time, and the action of pushing down the rear side of the board and raising the front side of the board are alternately and continuously performed.   As the operator pitches, the shaft connected horizontally via the skeg tail connected to the board bends up and down, and at the same time, the propulsion plate swings up and down like a flapping motion of the wing. The human-powered propulsion boat according to claim 6 or 7, wherein   The human-powered propulsion boat according to claim 1, wherein the propulsion plate on the lower surface side of the board is formed in a substantially crescent shape having a wide width in a plan view.   The human power propulsion boat according to any one of claims 1 to 9, wherein the board is capable of vertical connection or horizontal connection via a connecting device.   A board with a long tread that is placed along the direction of travel of the board and swings with both feet placed while the operator is standing sideways, and the center of the long tread In a manpowered propulsion boat having an operation pole, a propulsion plate disposed at a lower rear portion of the board, and a transmission mechanism that transmits a swing of a long tread plate as a vertical swing motion of the propulsion plate The pole is provided with a rectangular plate of a predetermined length arranged along the traveling direction of the board at the upper end thereof, and has a handle attached to both ends of the rectangular plate.   The board is provided with a swingable hydrofoil substantially at the center of the lower surface of the board. The hydrofoil has an inclined upper surface, the lower surface is horizontal, and the cross section of the rear part (discharge side) from the front part (suction side) in the traveling direction. A flat cylindrical water flow acceleration box having a small diameter, and a horizontal plate (main wing) having the same width as the box and having a straight line in the lower part and a curved part in the upper part with respect to the traveling direction. The human-powered propulsion boat according to any one of 11 to 11.   The human-powered propulsion boat according to claim 12, wherein the lower surfaces of the box and the horizontal plate (main wing) are connected to form a straight line.   The human power propulsion boat according to claim 12, wherein the horizontal plate (main wing) is connected to a center of a rear portion (discharge side) of the box at an arbitrary elevation angle.   The hydrofoil is connected to the front and rear of the shaft by a shaft, and a bearing is provided at the center of the shaft so that it can be rotated vertically in the direction of travel. The bearing is connected to the bottom of the fin attached vertically from the center of the bottom surface of the board. The human-powered propulsion boat according to claim 12.   The bellows-like block is provided on the lower surface of the board so as to collect air from the traveling direction, and an elevation angle is given to a portion where the block contacts with water so as not to become too resistance. A manpower propulsion boat as described in

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