JP2008207756A - Canoe and catamaran type canoe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a canoe capable of being paddled by even children, aged persons, persons under rehabilitation without a danger of overturning and having an easy propulsion mechanism. <P>SOLUTION: This canoe is provided with (a) a frame body provided in a boat body to be projected and having a lower surface opened in the water, an opened upper surface, a height higher than a draft line and a stroke length in the longitudinal direction, (b) a rail body mounted at a bottom part of the frame body, (c) a stroke transmission rod which is inserted into the frame body to be reciprocated forward and backward and has an upper part supported by right and left sides of the frame body and a lower part supported by a four-wheel carriage moving in the rail body, and (d) a propulsion device obtaining propulsive force by injecting water to a rear side by stroke of the stroke transmission rod. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a canoe and a catamaran canoe, and more particularly, to a canoe and a catamaran canoe suitable for rehabilitation of a child, an elderly person, or a person who has finished a treatment stage.

  In general, a canoe is a small and lightweight rowing boat, and is known as a boat in which a passenger sits facing the front in the direction of travel. The boat is seated with its back in the direction of travel, as opposed to a canoe. Canoeing is promoted using a rowing so called paddle. Some paddles have webs on one side and others have webs on both sides. There are two types of hulls: an open deck type with a large opening at the top like a boat and a closed deck type with a hole for getting into the center without opening at the top.

  Canoeing is free to move on the water, making it popular as an outdoor sport and refreshing both mentally and physically. However, if you dare to describe the shortcomings, the bow and stern are sharp and the hull is thin, and the paddles are alternated between left and right, so the body is twisted and tilted, so it is easy to roll over and lose balance. Furthermore, the hull tends to travel in a zigzag rather than straight in the direction of travel. Therefore, a conventional canoe cannot be enjoyed by riding freely unless the body has strength and flexibility. Also, the danger of rollover makes outdoor use difficult in winter. Furthermore, it is difficult to use for children who are flexible but have no muscle strength, elderly people who have muscle strength but are not flexible, and those who have completed the treatment stage without flexibility and strength.

In Patent Document 1, a pump-type propulsion device is mounted on a boat, and when a pedal is depressed, the wheel rotates like a bicycle, the rotational motion of the wheel is converted into a reciprocating motion by a crank, the piston in the pump is moved, A mechanism for propelling and sucking inhaled water is shown. Such a configuration requires a large mechanism including the wheels. Patent Document 2 discloses a mechanism in which a wheel rotates when a pedal is depressed, and this rotation is transmitted to a driven gear through a chain. When the driven gear rotates, a screw in the water guide pipe rotates to propel the boat. Since the wheel is rotated by the force of the foot, it is excellent in terms of accelerating and accelerating the hull, but requires a large mechanism. Both propulsion mechanisms are difficult to mount on a small and lightweight canoe.
Japanese Utility Model Publication No. 61-179097 JP 2001-106186 A

  The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a canoe that can be paddled by children, elderly people, and rehabilitated persons, has a low risk of overturning, and has a simple propulsion mechanism. There is.

  The canoe according to claim 1 according to the present invention is provided so as to protrude into the boat body, and has a lower surface opened in water, an opened upper surface, a height higher than the water line, and a frame having a stroke length in the front-rear direction, A rail body attached to a bottom portion of the frame body, a four-wheel carriage inserted into the frame body, reciprocating back and forth, an upper portion supported by the left and right sides of the frame body, and a lower portion moving in the rail body And a propulsion device that obtains propulsive force by jetting water backward by the stroke of the stroke transmission rod.

  According to the canoe according to claim 2, the propulsion device includes a cylinder that is open on both sides, a piston that reciprocates in the cylinder, one end connected to the stroke transmission rod, and the other end connected to the piston. And a piston rod having a universal joint, and two semicircular butterfly valves provided on the piston, which are closed when water is injected and opened when returning.

  According to the canoe according to claim 3, the propulsion device is configured by a cylindrical telescopic bellows, and the bellows has a suction valve that closes when water is injected and opens when water is sucked. It is preferable to include a front end that is fixed to the body and a rear end that has a discharge valve that opens when water is injected and closes when water is sucked, and is connected to the lower end of the stroke transmission rod.

  According to the canoe of the fourth aspect, it is preferable that the rollover prevention tool having the streamline float is further provided at the front ends of the four arms provided on the front, rear, left and right of the boat body.

  According to the canoe according to claim 5, a stroke doubling device comprising a pair of pulleys and a belt stretched over the pulleys is provided between the stroke transmission rod and the piston rod, Preferably, the side is fixed to the bottom of the hull and the lower side of the belt is connected to the piston rod.

  According to the canoe according to claim 6, it is preferable that the stroke transmission rod is provided with a handle for rowing or a pedal for rowing at one end thereof.

  According to the canoe according to claim 7, it is preferable that the propulsion device is provided with a fan that rotates in a flow of water to be injected at a water injection port.

  According to the canoe according to claim 8, the propulsion device is provided with a rubber caliber that is pneumatically operated at an injection port, and the caliber of the injection port is adjusted in advance by the force of the user's hand or foot. It is preferable to adjust together.

  The catamaran canoe according to claim 9 according to the present invention is provided between the hulls, and includes a lower surface opened in water, an opened upper surface, a height higher than the water line, and a frame having a stroke length in the front-rear direction. A rail body attached to the bottom of the frame body, and a four-wheeled body that is inserted into the frame body and can be reciprocated back and forth, the upper part being supported on the left and right sides of the frame body, and the lower part moving in the rail body A stroke transmission rod supported by a carriage, and a propulsion device that obtains a propulsion force by jetting water backward by a stroke of the stroke transmission rod.

  According to the catamaran canoe according to claim 10, the propulsion device includes a cylinder opened on both sides, a piston that reciprocates in the cylinder, one end connected to the stroke transmission rod, and the other end connected to the piston. Preferably, the piston rod is connected to each other and has a universal joint and two semicircular butterfly valves provided on the piston, which are closed when water is injected and opened when returning.

  According to the catamaran canoe according to claim 11, the propulsion device includes a cylindrical telescopic bellows, and the bellows has a suction valve that closes when water is injected and opens when water is sucked. It is preferable to include a front end that is fixed to the boat body and a rear end that has a discharge valve that opens when water is injected and closes when water is sucked, and is connected to the lower end of the stroke transmission rod.

  According to the catamaran canoe according to claim 12, the stroke transmission rod has an upper end extended to the side of each hull, and a handle or a foot pedal for extending to the left and right is provided at the extended end of each hull. It is preferable to be provided.

  According to the canoe according to the first aspect of the present invention, since the frame body higher than the water line is provided in the boat, the boat does not sink even if the bottom of the frame body is open to the water. Stroke is secured. And the rowing motion is the motion of stretching the arm or foot and raising the body forward, and there is no motion of twisting the body left and right like paddling with the paddle, so the boat does not shake left and right, Does not induce sideways. That is, it is possible to reduce overturning. Further, the stroke transmission rod is supported by the wheels running in the rail body, and it is easy to row with little resistance. Such a structure is mechanically simple. The water is sprayed backwards and the occupant can sit in the direction of travel.

  According to the second aspect, the propulsion device is composed of a straight cylinder and a piston with a butterfly valve, so that the structure is simple. Compared to a curved cylinder such as a pump and a structure having two valves. It is easy to row. Since the universal joint is provided on the piston rod, the stroke can be transmitted to the piston without resistance even if the two shafts are displaced or inclined.

  According to the third aspect of the present invention, the propulsion device is configured with a telescopic bellows, so that the structure can be simplified and the weight can be reduced. Since the length of the hull can be shortened, it is easier to row.

  According to the fourth aspect, since the rollover prevention tool is provided, there is no danger of rollover. In addition, the streamlined float has less water resistance and can smoothly advance the hull.

  According to the fifth aspect, since the stroke doubling mechanism is provided, the boat body can be shortened because it can be boiled with a small stroke. It can also be used by children. On the other hand, since the piston stroke can be lengthened, a large driving force can be obtained.

  According to the sixth aspect of the present invention, the stroke transmission rod is provided with a handle or a pedal, so that the stroke transmission rod can be padded with hands, padded with feet, or padded with both hands and feet.

  According to claim 7, since the fan is provided at the injection port of the propulsion device, the flow velocity is lost by the rotation of the fan, but the flow of water is adjusted accordingly, so that it is just like propelling the boat with a screw Smooth promotion can be obtained.

  According to the eighth aspect of the present invention, since the aperture restricting portion is provided at the injection port of the propulsion device, the aperture can be widened so that even a person without muscle strength can be bald. If you want to add muscular strength, you can squeeze the aperture stop.

  According to the catamaran canoe of claim 9 according to the present invention, there is no danger of rollover. Moreover, since the propulsion apparatus which injects water is arrange | positioned between two hulls, the hull structure which attaches a propulsion apparatus to each hull can be made unnecessary.

  The double-hull canoe according to claims 10 to 12 can employ a piston and cylinder or a bellows as a propulsion device. Each hull is extended from the propulsion device and each is provided with a handle or pedal so that two or one person can row.

  Embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a plan view of a canoe according to the present invention. The canoe 100 has a shape close to an open deck type, with decks in the front and rear, a maneuvering seat 26 in the center, and a stroke transmission rod 2 and a stroke transmission rod 2 having a handle 3 for rowing forward. There is a frame 4 that is slidably supported. The rowing operation is performed by moving the handle 3 from the front to the rear or from the rear to the front. The stroke length when rowing is the length from the frontmost position of the handle 3 to the rearmost position. Accordingly, the frame body 4 has a stroke length and is long before and after the boat body 1. The bottom of the frame body 4 communicates with the water. A cylinder / piston type propulsion device 40 is provided at the bottom of the hull 1. The front and rear length of the frame body 4 determines the stroke when the frame 4 is rolled, but here it is 500 mm. The hull 1 was 1900 mm.

  FIG. 2 is a side view of a canoe according to the present invention. Although water enters the frame body 4 from the bottom, the frame body 4 has a height higher than the water line, so that water does not enter the boat body 1. The stroke transmission rod 2 moves between the front end and the rear end in the frame 4. A rail body 7 is provided below the frame body 4, and the stroke transmission rod 2 is supported by a carriage 5 whose lower end moves in the rail body 7. The cylinder / piston type propulsion device 40 includes a piston 9 and a cylinder 10. The piston 9 is connected to the piston rod 6, and the front of the piston rod 6 is connected to the stroke transmission rod 2. A universal joint 8 is provided on the piston rod 6 side of the piston rod 6 so that force can be transmitted to the piston 9 without resistance even if the piston rod 6 is displaced or inclined. Although the stroke transmission rod 2 stands upright here, it may be slightly inclined backward. In that case, if the same stroke length is ensured, the frame 4 is shaped like a parallelogram, so that the boat 1 is also long. When the handle 3 is moved from the front to the rear, the piston 9 moves from the front to the rear. When the handle 3 is moved from the rear to the front, the piston 9 moves from the rear to the front.

  3 is a front view (A) and a rear view (B) of the canoe of FIG. As shown in FIG. 3A, the rail body 7 includes a right rail body 7a and a left rail body 7b. A carriage 5 is mounted in the rail body 7 and supports the stroke transmission rod 2. The carriage 5 can easily move in the front-rear direction. The stroke transmission rod 2 is supported at the upper part of the frame body 4 so as not to move in the left-right direction. When the cylinder 10 is viewed from the front, the piston 9 can be seen inside. As shown in FIG. 3B, when the cylinder 10 is viewed from the back, the butterfly valve 11 attached to the piston 9 can be seen.

  FIG. 4 is an enlarged front view of the cart portion of FIG. The rail body 7 is U-shaped and has a structure in which the wheels of the carriage 5 run.

  FIG. 5 is a plan view of the carriage of FIG. The carriage 5 has wheels 12a, 12b, 12c, and 12d, and the stroke transmission rod 2 is inserted and fixed at the center portion.

  FIG. 6 is an enlarged plan view of the propulsion device (cylinder / piston type) shown in FIG. The cylinder 10 is provided with a piston 9 inside. The front side of the cylinder 10 is opened and water is always entering. The piston 9 is a hollow cylindrical body, the front side is opened, and water always enters. There is a butterfly valve 11 on the rear side of the piston 9. The butterfly valve 11 closes when the piston rod 6 is pushed backward, and conversely opens at an angle of about 60 degrees when it is returned forward. The butterfly valve 11 reciprocates in the sucked water by opening and closing the valve. The universal joint 8 is effective when the cylinder 10 is composed of a light and soft member, and the piston 9 sways vertically and horizontally.

  FIG. 7 is a rear view of the butterfly valve of FIG. The butterfly valve 11 is composed of two semicircular right butterfly valves 11a and a left butterfly valve 11b connected by a hinge.

  FIG. 8 is a configuration diagram when a fan is attached to the injection port of the propulsion device. When the water in the cylinder 10 is pushed out toward the injection port 13, the fan 14 rotates with that momentum. Therefore, since the fan 14 moves like a screw, the water jet becomes smooth. With the fan 14, it is easy to start rowing first.

  FIG. 9 is a configuration diagram in the case where the injection port of the propulsion device is bent to form a rudder. By bending the water injection port 13 to the left and right, a rudder function can be provided. Specifically, a part of the cylinder 10 (indicated by G) is made of a flexible member such as rubber, and wires are stretched to the left and right of the injection port 13. For example, by operating the handle 3, It can be bent by loosening one and pulling the other.

  FIG. 10 is a configuration diagram in the case where a caliber is provided in the injection port of the propulsion device. If the tube 16 does not contain air, the diameter of the injection port is widened as shown in FIG. 10A, and if air is contained, the diameter of the jet is narrowed as shown in FIG. 10B. As shown in FIG. 10A, when air is introduced into the tube 16 via the valve 15 by the air pump 28, the diameter of the injection port can be reduced as shown in FIG. 10B. If it makes like FIG. 10 (A), it can be rowed easily, and when it is desired to apply muscular strength by rehabilitation, it can be rowed as shown in FIG. 10 (B).

  FIG. 11 is a side view when the stroke doubling device is attached to the canoe of FIG. 2. The stroke doubling device 17 is connected to the lower end of the stroke transmission rod 2, and when the handle 3 is pulled from the position shown in FIG. 11A, the stroke doubling device 17 corresponds to the stroke as shown in FIG. Himself moves backwards. Further, the movement causes the belt inside the stroke doubler 17 to rotate, and the piston rod 6 is pushed backward. Therefore, even if the stroke of the handle 3 is short, the stroke of the piston 9 can be lengthened. When the length of the hull 1 is limited, the stroke length of the handle 3 must be shortened, but even in that case, the stroke length of the piston 9 can be increased to obtain a predetermined propulsive force. .

  12 is an internal structure diagram of the stroke doubling device of FIG. In the stroke doubling device 17, a belt 19 is stretched around two pulleys 18, and the shaft of each pulley 18 is connected to the stroke transmission rod 2. One end on the upper side of the belt 19 is fixed to the bottom of the boat body 1. It is assumed that the stroke doubling device 17 is pushed backward by the stroke transmission rod 2 and moves from the position shown in FIG. 12A to the position shown in FIG. In that case, the stroke length of the stroke transmission rod 2 is L. When the stroke transmission rod 2 moves, the pulley 18 also moves backward. At this time, the belt 19 is pulled by the rear side by the amount loosened by the front side and moved by L. As a result, one end P of the piston rod 6 moves backward by L + L, that is, 2L. When the handle 3 is returned to the front, the operation is reversed. That is, if the stroke length of the handle 3 is L, the stroke length of the piston 9 can be 2L.

  FIG. 13 is a configuration diagram when the rollover prevention tool is attached to the canoe of FIG. 1. The rollover prevention tool 32 includes arms 20a, 20b, 20c, and 20d and floats 21a, 21b, 21c, and 21d. Respectively attached to the front, rear, left and right of the hull 1. The floats 21a to 21d are streamlined to reduce the water resistance.

  FIG. 14 is a configuration diagram in the case where the propulsion device is configured as a bellows and is used as a foot pad. The propulsion device 41 is configured by a cylindrical stretchable bellows 22. The front end of the bellows 22 is fixed to the front side of the boat body 1 by being provided with a suction valve 23 that closes when water is injected and opens when water is sucked. The rear end of the bellows 22 is provided with a discharge valve 24 that opens when water is injected and closes when water is sucked, and is connected to the lower end of the stroke transmission rod 2.

  In FIG. 14, the pedal 27 is formed by bending the handle 3 provided at the upper end of the stroke transmission rod 2 inserted into the frame body 4 downward. When the leg shown in FIG. 12 (A) is contracted to the state shown in FIG. 12 (B), the other end side of the bellows 22 is moved to one fixed side and the bellows 22 is compressed. Therefore, the sucked water is discharged. Since the pedal 27 does not return to the original position even when the foot is contracted, an auxiliary spring 31 is provided to automatically return to the original position. Either one or both of the pedal 27 and the handle 3 may be equipped. In addition, the auxiliary spring 31 may be mounted for returning the handle 3 to the front in a canoe equipped with a cylinder / piston type propulsion device 40 as shown in FIG. In the canoe of FIG. 2, when the pedal 27 is further provided, the force of the foot is not used to crawl but is used to return the stroke transmission rod 2 to the front position.

  FIG. 15 is a plan view of a catamaran canoe according to the present invention. The catamaran canoe 200 is obtained by connecting two boat bodies 1 with a connecting member 25. A propulsion device 40 is provided between the hulls. Thereby, even if there is one propulsion device 40, it can go straight. Since it is not necessary to mount the propulsion device 40 on each hull 1, the overall weight can be reduced. A frame body 4 for accommodating the stroke transmission rod 2 and a rail body 7 are also installed between the boat bodies. The upper end of the stroke transmission rod 2 of the catamaran canoe 200 is extended to the side of each hull. A handle or a pedal that extends to the left and right can be provided at the extended end extended to each hull. That is, only one rider may crawl, and both cradles may crawl together.

  The present invention is suitable as a canoe that does not capsize. It can also be applied to boats that run backwards when rowing.

1 is a plan view of a canoe according to the present invention. (Example 1) 1 is a side view of a canoe according to the present invention. (Example 1) It is the front view (A) and back view (B) of the canoe of FIG. It is the front view which expanded the trolley | bogie part of FIG. It is a top view of the trolley | bogie of FIG. FIG. 3 is an enlarged plan view of the propulsion device (cylinder / piston type) of FIG. 2. It is a rear view of the butterfly valve of FIG. It is a block diagram in case a fan is attached to the injection outlet of a propulsion apparatus. It is a block diagram in the case of bending a jet nozzle of a propulsion device to make a rudder. It is a block diagram in the case of providing a diameter throttle part in the injection port of a propulsion apparatus. (A) shows a case where the aperture is expanded, and (B) shows a case where the aperture is narrowed. It is a side view in case a stroke doubling device is attached to the canoe of FIG. (A) shows the case where the handle is located at the forefront, and (B) shows the case where the handle is located at the end. It is an internal structure figure of the stroke doubling device of FIG. (A) shows the case where the handle is located at the forefront, and (B) shows the case where the handle is located at the end. It is a block diagram at the time of mounting | wearing the canoe of FIG. 1 with a rollover prevention tool. It is a block diagram in case a propulsion apparatus is comprised by the bellows and used as a leg. (A) shows a case where the leg is contracted, and (B) shows a case where the leg is extended by rowing. It is a top view of the catamaran canoe by this invention. (Example 2)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ship body 2 Stroke transmission rod 3 Handle 3a Handle of right hull of catamaran canoe 3b Handle of left hull of catamaran canoe 4 Frame body 5 Cart 6 Piston rod 7 Rail body 7a Right rail body 7b Left rail body 8 Universal Joint 9 Piston 10 Cylinder 11 Butterfly valve 11a Right butterfly valve 11b Left butterfly valve 12 Wheel 12a, 12b, 12c, 12d Each wheel 13 Injection port 14 Fan 15 Valve 16 Tube 17 Stroke doubling device 18 Pulley 19 Belt 20a, 20b, 20c , 20d arm 21a, 21b, 21c, 21d float 22 bellows 23 suction valve 24 discharge valve 25 connecting member 26 boat operator's seat 27 pedal 28 air pump 31 auxiliary spring 32 rollover prevention tool 40 cylinder / piston type thrust 41 bellows-type propulsion apparatus 100 canoe 200 catamaran canoe

Claims (12)

A lower surface that protrudes into the boat body, opens to the water, an upper surface that opens, a height higher than the water line, and a frame having a stroke length in the front-rear direction;
A rail body attached to the bottom of the frame;
A stroke transmission rod inserted into the frame body, reciprocating back and forth, the upper part being supported on the left and right sides of the frame body, and the lower part being supported by a four-wheel carriage moving in the rail body;
A canoe comprising: a propulsion device that obtains propulsive force by jetting water backward by the stroke of the stroke transmission rod.   The propulsion device includes a cylinder that is open on both sides, a piston that reciprocates within the cylinder, a piston rod that has one end connected to the stroke transmission rod, the other end connected to the piston, and a universal joint, and the piston The canoe according to claim 1, comprising two semicircular butterfly valves which are provided at the end and closed when water is injected and opened when the water is returned.   The propulsion device is composed of a cylindrical telescopic bellows, the bellows being closed when jetting water, having a suction valve that opens when sucking water, and a front end fixed to the hull, and jetting water The canoe according to claim 1, further comprising: a rear end connected to a lower end of the stroke transmission rod, and having a discharge valve that opens when it is opened and closes when water is sucked in.   The canoe according to claim 1, further comprising a rollover prevention device having a streamline float at the front ends of four arms provided on the front, rear, left and right of the hull.   A stroke doubling device comprising a pair of pulleys and a belt stretched over the pulleys is provided between the stroke transmission rod and the piston rod, and the upper side of the belt is fixed to the bottom of the hull, and the belt The canoe according to claim 2, wherein a lower side of the canoe is connected to the piston rod.   The canoe according to claim 1, wherein the stroke transmission rod is provided with a handle for rowing or a pedal for rowing at one end thereof.   2. The canoe according to claim 1, wherein the propulsion device is provided with a fan that rotates in a flow of water to be injected at a water injection port.   The propulsion device is provided with a rubber caliber that is operated pneumatically at an injection port, and the caliber of the injection port is adjusted in advance in accordance with the force of a user's hand or foot. Item 1. A canoe according to item 1. A lower surface provided between the hulls, opened in water, an opened upper surface, a height higher than the water line, and a frame having a stroke length in the front-rear direction;
A rail body attached to the bottom of the frame;
A stroke transmission rod inserted into the frame body, reciprocating back and forth, the upper part being supported on the left and right sides of the frame body, and the lower part being supported by a four-wheel carriage moving in the rail body;
A twin-body canoe comprising: a propulsion device that obtains a propulsion force by jetting water backward by the stroke of the stroke transmission rod.   The propulsion device includes a cylinder that is open on both sides, a piston that reciprocates within the cylinder, a piston rod that has one end connected to the stroke transmission rod, the other end connected to the piston, and a universal joint, and the piston The double-hull canoe according to claim 9, comprising two semi-circular butterfly valves which are provided at the same time and are closed when water is injected and opened when returning water.   The propulsion device is composed of a cylindrical telescopic bellows, the bellows being closed when jetting water, having a suction valve that opens when sucking water, and a front end fixed to the hull, and jetting water The double-hull canoe according to claim 9, further comprising: a rear end connected to a lower end of the stroke transmission rod, and having a discharge valve that opens when it is opened and closes when water is sucked in.   10. The stroke transmission rod according to claim 9, wherein an upper end of the stroke transmission rod is extended to the side of each boat body, and a handle or a pedal for towing is provided at an extended end of each boat body. Catamaran canoe.

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