JP6557754B2 - Ships and guides - Google Patents

Description

  The present invention relates to a ship and a guide.

  For example, as disclosed in Patent Document 1, a ship used for wake surfing is known in recent years. In wake surfing, surfers use wakeboards to follow the ship while riding in the wake created by the ship.

US Patent Publication US2014 / 0026799A1

  In wake surfing, surfers prefer a flat wake with little splashing. However, the ship is provided with a ship propulsion device for propelling the ship, and the wake is easily disturbed by the water flow generated by the ship propulsion device. For example, ship propulsion devices include jet propulsion devices or outboard motors. A jet propulsion device generates water flow that propels a ship by injecting water from an injection port. The outboard motor generates a water flow for propelling the ship by rotating the propeller. Since these water flows cause splashes of water to the water surface behind the ship, it is not easy to secure a flat wake behind the ship with little water splash. Therefore, there is a demand for a ship that can suppress the influence of the water flow caused by the ship propulsion device and can create a flat wake with less splashing.

  The ship according to the first aspect includes a hull, a ship propulsion device, and a guide. The ship propulsion device includes a water flow generation source for propelling the hull and is attached to the hull. The guide is provided on the hull. The guide extends from a position lateral to the water flow source to the rear of the hull and toward the center in the width direction of the hull. The guide guides the water flowing on one side of the hull inward, and the guide provides the hull with the timing when the water flowing on one side of the hull and the water flowing on the other side of the hull merge. Be faster than if not.

  The ship according to the second aspect includes a hull, a ship propulsion device, a left guide, and a right guide. The ship propulsion device includes a water flow generation source for propelling the hull and is attached to the hull. The left guide is arranged to the left of the water flow source. The right guide is arranged to the right of the water flow source. The left guide extends from a position on the left side of the water flow source toward the rear of the hull and toward the center in the width direction of the hull. The right guide extends from a position on the right side of the water flow source to the rear of the hull and toward the center in the width direction of the hull. The left guide guides the water flowing on the left side of the hull inward, and when the left guide is used, the timing at which the water flowing on the left side of the hull and the water flowing on the right side of the hull merge is Make it faster than when the guide is not in use. The right guide guides the water flowing on the right side of the hull inward, and when the right guide is used, the timing when the water flowing on the right side of the hull and the water flowing on the left side of the hull merge is Make it faster than when the guide is not in use.

  The guide which concerns on a 3rd aspect is a guide attached to the hull provided with the water flow generation source which propels a hull, Comprising: An attaching part, a 1st guide surface, and a 2nd guide surface are included. The attachment portion is detachably attached to the hull. The first guide surface extends from a position lateral to the water flow generation source toward the rear of the hull and the center in the width direction of the hull in a state where the guide is attached to the hull. The second guide surface is disposed outside the first guide surface. The first guide surface guides the water flowing on the side of the hull to a position behind and above the water flow generation source with the guide attached to the hull. The second guide surface guides the water flowing on one side of the hull to the inside, and when the guide is provided on the hull, the water flowing on one side of the hull and the water flowing on the other side of the hull The timing at which the two are merged is made earlier than when the guide is not provided on the hull.

  The ship according to the fourth aspect includes a hull, a ship propulsion device, and a guide. The ship propulsion device includes a water flow generation source for propelling the hull and is attached to the hull. The guide is provided on the hull. The guide guides the water flowing on one side of the hull to the inside, and the guide is provided on the hull when the water flowing on one side of the hull and the water flowing on the other side of the hull merge. To be faster than if not. At least a part of the guide is disposed above the water flow source.

  The ship according to the fifth aspect includes a hull, a ship propulsion device, and a guide. The ship propulsion device includes a water flow generation source for propelling the hull and is attached to the hull. The guide is provided on the hull. The guide guides the water flowing along the side surface of the hull toward the water flow generated by the water flow generation source, thereby erasing the water splash and generating a wake for wake surfing.

  The ship according to the sixth aspect includes a hull, a ship propulsion device, and a guide. The ship propulsion device includes a water flow generation source for propelling the hull and is attached to the hull. The guide is provided on the hull. The guide guides the water flowing along the side surface of the hull to the inside, thereby generating a wake for wake surfing on the side where the guide is disposed with respect to the center in the width direction of the hull.

  According to the present invention, the guide can suppress the influence of the water flow by the ship propulsion device, and can create a flat wake with little splash.

It is a side view of the ship concerning a 1st embodiment. It is a top view of the ship concerning a 1st embodiment. It is a bottom view of the ship concerning a 1st embodiment. It is side surface sectional drawing which shows the structure of the ship propulsion apparatus which concerns on 1st Embodiment. It is a rear view of the ship concerning a 1st embodiment. It is a perspective view of the rear part of the ship concerning a 1st embodiment. It is a perspective view of the rear part of the ship concerning a 1st embodiment. It is a perspective view of a guide concerning a 1st embodiment. It is a perspective view of a guide concerning a 1st embodiment. It is an expanded bottom view which shows the rear part of the ship which concerns on 1st Embodiment. It is a perspective view which shows the rear part of the ship which concerns on 1st Embodiment. It is an expanded bottom view which shows the rear part of the ship which concerns on 1st Embodiment. It is a figure which shows the flat wake produced | generated by the guide which concerns on 1st Embodiment. It is a side view which shows the ship which concerns on 2nd Embodiment. It is a top view which shows the ship which concerns on 2nd Embodiment. It is a rear view which shows the ship which concerns on 2nd Embodiment. It is an expansion perspective view of the right guide concerning a 2nd embodiment. It is an enlarged top view of the rear part of the ship which concerns on 2nd Embodiment. It is a figure which shows the control system of the ship which concerns on 2nd Embodiment. It is a figure which shows the other example of a ship propulsion machine. It is a figure which shows the ship which concerns on the 1st modification of 1st Embodiment. It is a figure which shows the guide which concerns on the 1st modification of 1st Embodiment. It is an enlarged view of a latch bar. It is an enlarged view of a retaining member. It is a figure which shows the guide which concerns on a 2nd modification. It is a figure which shows the guide which concerns on a 3rd modification. It is a figure which shows the guide which concerns on a 4th modification. It is a figure which shows the ship which concerns on the modification of 2nd Embodiment. It is a figure which shows the ship which concerns on the modification of 2nd Embodiment. It is a figure which shows a left actuator. It is a figure which shows the control system of the ship which concerns on the modification of 2nd Embodiment.

  Hereinafter, a ship according to an embodiment will be described with reference to the drawings. FIG. 1 is a side view of a ship 1a according to the first embodiment. FIG. 2 is a top view of the ship 1a. FIG. 3 is a bottom view of the ship 1a. In this embodiment, the ship 1a is a jet propulsion boat, and is a type of ship called a jet boat or a sports boat.

  Ship 1a includes a hull 2, engines 3L and 3R, and ship propulsion devices 4L and 4R. The hull 2 includes a deck 11 and a hull 12. The hull 12 is disposed below the deck 11. On the deck 11, a maneuvering seat 13 is arranged. A steering wheel 14 for steering the marine vessel 1a is disposed at the maneuvering seat 13. Further, an operation lever 15 for switching forward / backward movement of the ship 1a and adjusting the ship speed is disposed at the maneuvering seat 13. A transom step 16 is disposed at the rear of the deck 11.

  The marine vessel 1a includes two engines 3L and 3R and two marine vessel propulsion devices 4L and 4R. Specifically, the ship 1a includes a first engine 3L and a second engine 3R. The marine vessel 1a includes a first marine vessel propulsion device 4L and a second marine vessel propulsion device 4R. However, the number of engines is not limited to two, and may be one or three or more. The number of ship propulsion devices is not limited to two, but may be one or three or more.

  The first engine 3L and the second engine 3R are accommodated in the hull 2. The output shaft of the first engine 3L is connected to the first marine vessel propulsion device 4L. The output shaft of the second engine 3R is connected to the second marine vessel propulsion device 4R. The first marine vessel propulsion device 4L is driven by the first engine 3L and generates a propulsive force that moves the hull 2. The second marine vessel propulsion device 4R is driven by the second engine 3R and generates a propulsive force that moves the hull 2. The first marine vessel propulsion device 4L and the second marine vessel propulsion device 4R are arranged side by side.

  The first marine vessel propulsion device 4L and the second marine vessel propulsion device 4R are jet propulsion devices that inhale and inject water around the hull 2. The first marine vessel propulsion device 4L includes a first water injection port 29L. The second marine vessel propulsion device 4R includes a second water injection port 29R. The first marine vessel propulsion device 4L injects water from the first water injection port 29L. The second marine vessel propulsion device 4R injects water from the second water injection port 29R. Thereby, the first marine vessel propulsion device 4L and the second marine vessel propulsion device 4R propel the hull 2. That is, the first water injection port 29L and the second water injection port 29R are water flow generation sources for propelling the hull 2.

  FIG. 4 is a side view showing the configuration of the first marine vessel propulsion device 4L. In FIG. 4, a part of the first marine vessel propulsion device 4L is shown in cross section. As shown in FIG. 4, the first marine vessel propulsion device 4L includes a first impeller shaft 21L, a first impeller 22L, a first impeller housing 23L, a first nozzle 24L, a first deflector 25L, and a first reverse. Bucket 26L.

  The first impeller shaft 21L is disposed so as to extend in the front-rear direction. The front portion of the first impeller shaft 21L is connected to the output shaft of the engine 3L via a coupling 28L. A first impeller 22L is attached to the rear portion of the first impeller shaft 21L. The first impeller 22L is disposed in the first impeller housing 23L. The first impeller 22L rotates with the first impeller shaft 21L and sucks water from the water suction port 27L. The first impeller 22L jets the sucked water backward from the first nozzle 24L.

  The first deflector 25L is disposed behind the first nozzle 24L. The first reverse bucket 26L is disposed behind the first deflector 25L. The 1st deflector 25L is comprised so that the injection direction of the water from the 1st nozzle 24L may be changed into the left-right direction. The first water injection port 29L described above is provided in the first deflector 25L. However, the first water injection port 29L may be provided in other portions such as the first nozzle 24L.

  The first reverse bucket 26L is provided to be switchable between a forward position and a reverse position. The direction of the jet flow from the first nozzle 24L is changed by switching the first reverse bucket 26L between the forward position and the reverse position. Thereby, the forward and reverse of the ship 1a are switched. Although illustration is omitted, the second marine vessel propulsion device 4R has the same configuration as the first marine vessel propulsion device 4L.

  FIG. 5 is a rear view of the ship 1a. 6 and 7 are perspective views of the rear part of the ship 1a. As shown in FIGS. 3 to 7, the ship 1 a includes a guide 5. The guide 5 is attached to the hull 2. The guide 5 is attached to the lower surface of the transom step 16. The guide 5 is disposed at a height that is located below the water surface when the boat speed is equal to or less than a predetermined speed, and is located above the water surface when the boat speed is higher than the predetermined speed. The predetermined speed is a speed at which the ship 1a slides. The guide 5 is detachably attached to the hull 2.

  8 and 9 are perspective views of the guide 5. FIG. As shown in FIGS. 8 and 9, the guide 5 includes a first plate portion 51, a second plate portion 52, and an attachment portion 53. The guide 5 has a shape bent between the first plate portion 51 and the second plate portion 52. In a state where the guide 5 is attached to the hull 2, the first plate portion 51 is disposed facing the lower surface of the transom step 16.

  The attachment portion 53 is detachably attached to the hull 2. The attachment portion 53 is provided on the first plate portion 51. The attachment portion 53 includes a first suction cup 531 and a second suction cup 532. The first suction cup 531 and the second suction cup 532 are arranged side by side in the longitudinal direction of the first plate portion 51. In addition, the attaching part 53 may be comprised not only by a suction cup but by other attaching means, such as a volt | bolt.

  The second plate portion 52 includes a first guide surface 54 and a second guide surface 55. The first guide surface 54 is an inner surface of the second plate portion 52. The second guide surface 55 is an outer surface of the second plate portion 52. The second guide surface 55 is disposed outside the first guide surface 54.

  As shown in FIG. 8, the first guide surface 54 includes a first inner surface 541, a second inner surface 542, and a third inner surface 543. The first inner surface 541 is located between the second inner surface 542 and the third inner surface 543. A space between the first inner surface 541 and the second inner surface 542 has a curved shape that is smoothly curved. A space between the first inner surface 541 and the third inner surface 543 has a curved shape that is smoothly curved.

  As shown in FIG. 9, the second guide surface 55 includes a first outer surface 551, a second outer surface 552, and a third outer surface 553. The first outer surface 551 is located between the second outer surface 552 and the third outer surface 553. The first outer surface 551 is located outside the first inner surface 541. The second outer surface 552 is located outside the second inner surface 542. The third outer surface 553 is located outside the third inner surface 543. A space between the first outer surface 551 and the second outer surface 552 has a curved shape that is smoothly curved. Between the 1st outer surface 551 and the 3rd outer surface 553, it has the shape of the curved surface curved smoothly.

  As shown in FIG. 9, the guide 5 includes a bracket 56 to which the rope 31 is attached. As shown in FIG. 7, the guide 5 is connected to the hull 2 by a rope 31. Thereby, even if the attachment part 53 of the guide 5 comes off from the hull 2 during navigation, the loss of the guide 5 can be prevented.

  FIG. 10 is an enlarged bottom view showing the rear part of the hull 2. FIG. 11 is a perspective view showing the rear part of the hull 2. As shown in FIGS. 10 and 11, the first guide surface 54 is located behind the hull 2 and at the center in the width direction of the hull 2 from a position lateral to the first and second injection ports 29L and 29R. It extends towards. 10 and 11, the first guide surface 54 allows the water flowing on the side of the hull 2 to flow behind and above the first and second injection ports 29L and 29R. invite.

  As shown in FIG. 5, the lower end of the first guide surface 54 is disposed above the lower ends of the first and second injection ports 29L and 29R. The upper end of the first guide surface 54 is disposed above the upper ends of the first and second injection ports 29L and 29R. When the guide 5 is attached to the left side of the first and second injection ports 29L and 29R, the first guide surface 54 is positioned to the left of the left end of the first injection port 29L.

  As shown in FIG. 10, the first inner surface 541 of the first guide surface 54 extends rearward of the hull 2 and toward the center in the width direction of the hull 2. The second inner surface 542 is disposed in front of the first inner surface 541. The second inner surface 542 extends from the first inner surface 541 toward the front of the hull 2. The third inner surface 543 extends from the first inner surface 541 toward the center in the width direction of the hull 2.

  Similar to the first guide surface 54, the second guide surface 55 faces from the side of the first and second injection ports 29L and 29R toward the rear of the hull 2 and the center in the width direction of the hull 2. It extends. 10 and 11, the second guide surface 55 is configured to increase the flow rate of water flowing on one side of the hull 2 more than the flow rate of water flowing on the other side of the hull 2. Then, the water flowing on one side of the hull 2 is guided.

  As shown in FIGS. 10 and 11, the first outer surface 551 of the second guide surface 55 extends rearward of the hull 2 and toward the center in the width direction of the hull 2. The second outer surface 552 extends from the first outer surface 551 toward the front of the hull 2. The front end of the second outer surface 552 is disposed behind the rear end of the side surface 121 of the hull 2. The second outer surface 552 is positioned more inward in the width direction of the hull 2 than the side surface 121 of the hull 2. However, the second outer surface 552 may be disposed flush with the left side surface of the hull 2. The third outer surface 553 extends from the first outer surface 551 toward the center in the width direction of the hull 2.

  In the above description, an example has been described in which the guide 5 is attached to the hull 2 at a position to the left of the first and second injection ports 29L and 29R. However, the guide 5 can be attached to and detached from the hull 2. In addition, the guide 5 has a symmetrical shape with respect to a plane passing through the center in the longitudinal direction of the guide 5. Accordingly, the guide 5 is removed from the left side of the first and second injection ports 29L and 29R shown in FIG. 10, and is located to the right of the first and second injection ports 29L and 29R shown in FIG. It is possible to easily change the position.

  In the ship 1 a according to the first embodiment described above, the water flowing along the side of the hull 2 is guided toward the inside in the width direction of the hull 2 by the first guide surface 54 and the second guide surface 55 of the guide 5. Is done. Specifically, the first guide surface 54 guides water flowing on the side of the hull 2 to a position behind and above the first and second injection ports 29L and 29R. Further, the second guide surface 55 of the guide 5 has a timing at which the water flowing on one side of the hull 2 and the water flowing on the other side of the hull 2 merge together when the guide 5 is not provided on the hull 2. To be faster. That is, the second guide surface 55 allows the water flowing on one side of the hull 2 to increase the flow rate of water flowing on one side of the hull 2 more than the flow rate of water flowing on the other side of the hull 2. invite. Accordingly, as shown by arrows A1 and A2 in FIG. 11, the water flowing on one side of the hull 2 covers the water flow A3 blown rearward from the first and second injection ports 29L and 29R from above. Thus, it is guided by the guide 5. Thereby, the splash which stands on the surface of the water is suppressed by the water flow generated by the ship propulsion devices 4L and 4R, and a flat wake with little splash can be created. As a result, as shown in FIG. 13, the region R1 where the water splashes by the ship propulsion devices 4L and 4R are standing on the water surface is narrowed by the water flow guided by the guide 5, and is a flat wake region R2 preferable for wake surfing. Can be secured widely. Accordingly, a wake surfing wake can be generated on the same side as the guide 5 is disposed with respect to the center in the width direction of the hull 2.

  The guide 5 can be attached to and detached from the ship 1a. Therefore, it can be easily retrofitted to the existing ship 1a. Moreover, in the rear part of the ship 1a, the guide 5 can be easily attached by arbitrarily selecting either the left position or the right position from the first and second injection ports 29L and 29R. Therefore, the position of the flat wake can be easily changed according to the demand of the wake surfer.

  Next, the ship 1b according to the second embodiment will be described. FIG. 14 is a side view showing a ship 1b according to the second embodiment. FIG. 15 is a top view showing the ship 1b. FIG. 16 is a rear view showing the ship 1b. As shown in FIGS. 14 to 16, the ship 1b includes a right guide 5R and a left guide 5L. In addition, since the other structure of the ship 1b which concerns on 2nd Embodiment is the same as the ship 1a which concerns on 1st Embodiment mentioned above, description is abbreviate | omitted.

  The right guide 5R is attached to the rear part of the hull 2. The front end of the right guide 5 </ b> R is disposed behind the rear end of the side surface 122 of the hull 2. The right guide 5R is disposed to the right of the first and second injection ports 29L and 29R. The right guide 5R is positioned above the water surface when the ship 1b is sliding, and is positioned so as to be located below the water surface when the ship 1b is stopped and humped. The right guide 5R guides the water flowing on the side of the hull 2 to a position behind and above the first and second injection ports 29L and 29R while being positioned below the water surface.

  FIG. 17 is an enlarged perspective view of the right guide 5R. As shown in FIG. 17, the right guide 5R includes a right main body guide 57R and a right movable mechanism 58R. The right main body guide 57R is attached to the hull 2.

  The right main body guide 57R includes a right inlet 61R into which water guided by the right guide 5R enters. The right inlet 61R communicates with the internal passage of the right main body guide 57R. The right inlet 61R is provided on the side surface of the right main body guide 57R. As shown in FIG. 15, the side surface of the right main body guide 57 </ b> R provided with the right inlet 61 </ b> R is disposed flush with the side surface 122 of the hull 2. However, the side surface of the right main body guide 57 </ b> R may be positioned more inward in the width direction of the hull 2 than the side surface 122 of the hull 2.

  As shown in FIG. 17, the right main body guide 57R includes a right outlet 62R from which water guided by the right guide 5R is ejected. The right outlet 62R is located to the right of the right end of the second injection port 29R. The right outlet 62R is narrower than the right inlet 61R. Thereby, the water taken into the right guide 5R from the right inlet 61R is increased in speed and blown out from the right outlet 62R.

  FIG. 18 is an enlarged top view of the rear part of the ship 1b. As shown in FIG. 18, the right main body guide 57R includes a first right guide surface 54R and a second right guide surface 55R. The first right guide surface 54R extends from the right side of the first and second injection ports 29L and 29R toward the rear of the hull 2 and the center in the width direction of the hull 2.

  The second right guide surface 55R is disposed outside the first right guide surface 54R. Similarly to the first right guide surface 54R, the second right guide surface 55R is located behind the hull 2 and at the center in the width direction of the hull 2 from a position lateral to the first and second injection ports 29L and 29R. It extends toward. The second right guide surface 55R guides the water flowing on one side of the hull 2 so that the flow rate of water flowing on one side of the hull 2 is increased more than the flow rate of water flowing on the other side of the hull 2. To do.

  The right movable mechanism 58R includes a right movable guide 63R and a right actuator 64R. The right movable guide 63R is movably provided with respect to the right main body guide 57R. For example, the right movable guide 63R is attached to the right main body guide 57R so as to be rotatable about the pivot shaft 65R.

  The internal passage of the right movable guide 63R communicates with the internal passage of the right main body guide 57R. The lower end of the right movable guide 63R is disposed above the lower ends of the first and second injection ports 29L and 29R. The upper end of the right movable guide 63R is disposed above the upper ends of the first and second injection ports 29L and 29R.

  The right actuator 64R changes the direction of water by the right guide 5R by changing the direction of the right movable guide 63R. The right guide actuator 64R includes, for example, a hydraulic cylinder and a hydraulic pump. However, the right guide actuator 64R is not limited to a hydraulic cylinder and a hydraulic pump, and may be another device. For example, the right guide actuator 64R may be configured by an electric motor and a gear.

  As shown in FIG. 18, the right guide 5R includes a right opening / closing mechanism 59R. The right opening / closing mechanism 59R opens and closes the right inlet 61R. The right opening / closing mechanism 59R includes a right shutter portion 66R shown in FIG. 18 and a right opening / closing actuator 67R shown in FIG. The right shutter portion 66R is switched between an open state and a closed state. The right shutter portion 66R opens the right inlet 61R in the open state. The right opening / closing actuator 67R closes the right inlet 61R in the closed state.

  The right shutter portion 66R is switched between an open state and a closed state. The right opening / closing actuator 67R includes, for example, a hydraulic cylinder and a hydraulic pump. However, the right opening / closing actuator 67R is not limited to a hydraulic cylinder and a hydraulic pump, and may be another device. For example, the right opening / closing actuator 67R may be configured by an electric motor and a gear.

  The left guide 5L includes a left main body guide 57L, a left movable mechanism 58L, and a left opening / closing mechanism 59L. The left main body guide 57L includes a first left guide surface 54L and a second left guide surface 55L. The left main body guide 57L includes a left inlet 61L and a left outlet 62L. The left movable mechanism 58L includes a left movable guide 63L and a left guide actuator 64L. The left opening / closing mechanism 59L includes a left shutter portion 66L and a left opening / closing actuator 67L. Since each part of said left guide 5L is the structure similar to each part to which the right guide 5R respond | corresponds, detailed description is abbreviate | omitted.

  As shown in FIG. 16, the marine vessel 1b includes a right trim tab 68R and a left trim tab 68L. The right trim tab 68R and the left trim tab 68L are attached to the rear portion of the hull 2. The right trim tab 68R and the left trim tab 68L are attached to the hull 2 so as to be movable between a storage position and a trim position. The right trim tab 68R is substantially flush with the ship bottom (sliding surface) and the bottom surface of the right guide 5R in the retracted position. The left trim tab 68L is substantially flush with the ship bottom (sliding surface) and the bottom surface of the left guide 5L in the retracted position. The right trim tab 68R and the left trim tab 68L are disposed so as to protrude downward from the ship bottom (sliding surface) at the trim position.

  Ship 1b includes a right trim actuator 69R and a left trim actuator 69L. The right trim actuator 69R is attached to the right trim tab 68R. The right trim actuator 69R moves the right trim tab 68R to the retracted position and the trim position. The left trim actuator 69L is attached to the left trim tab 68L. The left trim actuator 69L moves the left trim tab 68L to the retracted position and the trim position. The right trim actuator 69R and the left trim actuator 69L include, for example, a hydraulic cylinder and a hydraulic pump. However, the right trim actuator 69R and the left trim actuator 69L are not limited to hydraulic cylinders and hydraulic pumps, and may be other devices. For example, the right trim actuator 69R and the left trim actuator 69L may be configured by an electric motor and a gear.

  FIG. 19 is a diagram showing a control system of the ship 1b. As shown in FIG. 19, the ship 1 b includes an input device 33 and a controller 34. The input device 33 is a touch panel, for example, and outputs a signal corresponding to an input operation by the user. However, the input device 33 may be another device such as a switch or a lever. The controller 34 includes, for example, a processor such as a CPU and a memory such as a RAM and a ROM.

  The controller 34 is connected to the input device 33, the left and right guide actuators 64L and 64R, the left and right opening / closing actuators 67L and 67R, and the left and right trim actuators 69L and 69R via a wired or wireless connection. The controller 34 operates the left and right movable mechanisms 58L and 58R according to the operation of the input device 33 by the user. The controller 34 operates the left and right opening / closing mechanisms 59L and 59R according to the operation of the input device 33 by the user. The controller 34 operates the left and right trim actuators 69L and 69R according to the operation of the input device 33 by the user.

  Specifically, the controller 34 changes the direction of the right movable guide 63R by controlling the right guide actuator 64R according to the operation of the input device 33 by the user. Thereby, the direction of water guidance by the right guide 5R can be changed. The controller 34 changes the direction of the left movable guide 63L by controlling the left guide actuator 64L according to the operation of the input device 33 by the user. Thereby, the direction of water guidance by the left guide 5L can be changed.

  The controller 34 can select the left and right guides 5L and 5R by controlling the left and right guide actuators 64L and 64R according to the operation of the input device 33 by the user. For example, when the right guide 5R is selected by the input device 33, the controller 34 controls the left and right guide actuators 64L and 64R to open the right inlet 61R and close the left inlet 61L. Thereby, a flat wake can be generated by the right guide 5R. When the left guide 5R is selected by the input device 33, the controller 34 controls the left and right guide actuators 64L and 64R to open the left inlet 61L and close the right inlet 61R. Thereby, a flat wake can be generated by the left guide 5L. Alternatively, when the non-use of the left and right guides 5R and 5L is selected by the input device 33, the controller 34 controls the left and right guide actuators 64L and 64R to close the right inlet 61R and the left inlet 61L.

  When the right guide 5R is selected, the controller 34 arranges the right trim tab 68R in the retracted position and arranges the left trim tab 68L in the trim position. When the left guide 5L is selected, the controller 34 arranges the left trim tab 68L in the retracted position and arranges the right trim tab 68R in the trim position.

  Also in the ship 1b according to the second embodiment described above, the right guide 5R or the left guide 5L can ensure a wide flat wake region preferable for wake surfing.

  When a flat wake is generated by the right guide 5R, the direction of the water flow ejected from the right guide 5R can be changed by the right movable mechanism 58R. When a flat wake is generated by the left guide 5L, the direction of the water flow ejected from the left guide 5L can be changed by the left movable mechanism 58L. Thereby, a more favorable wake can be created for wake surfing.

  Further, when the right guide 5R is selected, the right trim tab 68R is disposed at the retracted position, and the left trim tab 68L is disposed at the trim position. As a result, the hull 2 tilts to the right, so that water from the ship side can be easily taken in by the right guide 5R. Moreover, the hull 2 will sink more into the play surface of wake surfing, and a higher wake can be generated. The right trim tab 68R is substantially flush with the bottom of the ship bottom and the right guide 5R in the retracted position. Thereby, the influence on the generation of the wake by the right guide 5R is suppressed. The same effect can be obtained when the left guide 5L is selected.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.

  The ship propulsion device is not limited to the jet propulsion device described above, and may be another device. For example, the ship propulsion device may be the outboard motor 9 shown in FIG. The outboard motor 9 includes, for example, an engine 91, a drive shaft 92, and a propeller shaft 93. A crankshaft 94 of the engine 91 is connected to the drive shaft 92. The propeller shaft 93 is connected to the drive shaft 92. A propeller 95 is connected to the propeller shaft 93. When the ship propulsion device is the outboard motor 9, the water flow source may be the propeller 95 of the outboard motor 9.

  The guide 5 according to the first embodiment may be formed integrally with the hull 2. The right main body guide 57R of the right guide 5R according to the second embodiment and the left main body guide 57L of the left guide 5L may be formed integrally with the hull 2.

  The left and right movable mechanisms 58L and 58R may be manually operated. Alternatively, the left and right movable mechanisms 58L and 58R may be omitted. The left and right opening / closing mechanisms 59L and 59R may be manually operated. Alternatively, the left and right opening / closing mechanisms 59L and 59R may be omitted.

  The controller 34 arranges only one of the left and right movable guides 63L and 63R so as to extend rearward of the hull 2 and toward the center in the width direction of the hull 2 and to arrange the other in order to make the wake flow flat. You may arrange | position straight with respect to the front-back direction of the hull 2. FIG. For example, when the right guide 5R is selected by the input device 33, the controller 34 arranges the right movable guide 63R so as to extend rearward of the hull 2 and toward the center in the width direction of the hull 2, and the left movable guide 63L may be arranged straight with respect to the front-rear direction of the hull 2. When the left guide 5L is selected by the input device 33, the controller 34 arranges the left movable guide 63L so as to extend rearward of the hull 2 and toward the center in the width direction of the hull 2, and the right movable guide 63R. You may arrange | position straight with respect to the front-back direction of the hull 2. FIG. Note that the controller 34 may arrange both the left and right movable guides 63L and 63R straight with respect to the front-rear direction of the hull 2 when the wake is not evenly adjusted by the left and right guides 5L and 5R.

  The structure of the guide is not limited to that of the first embodiment described above, and may be changed. FIG. 21 is a diagram illustrating a ship 1a according to a first modification of the first embodiment. In the ship 1 a according to the first modification, the guide 5 is fixed to the hull 2 by a latch bar 71. FIG. 22 is a view showing the guide 5 according to the first modification. In FIG. 22, the same code | symbol is attached | subjected to the structure similar to 1st Embodiment. As shown in FIG. 22, the guide 5 includes a first opening 501 and a second opening 502. The first opening 501 and the second opening 502 are provided in the first plate portion 51. As shown in FIG. 21, an eye 74 is provided at the bottom of the ship 1a. When the guide 5 is attached to the port side of the ship 1a, the eye 74 is passed through the first opening 501.

  The latch bar 71 is inserted into the eye 74 in a state where the eye 74 is passed through the first opening 501 and the eye 74 protrudes from the first opening 501. FIG. 23 is an enlarged view of the latch bar 71. As shown in FIG. 23, the latch bar 71 includes a first hole 711. The first hole 711 passes through the latch bar 71, and a female screw is provided in the first hole 711. A fixing member 76 having a male screw is screwed into the first hole 711. The leading end 761 of the fixing member 76 protrudes from the first hole 711 and presses the guide 5, whereby the latch bar 71 is fixed to the guide 5.

  The latch bar 71 includes a first hole 712. The first hole 712 passes through the latch bar 71. A retaining member 78 is inserted into the first hole 712. FIG. 24 is an enlarged view of the retaining member 78.

  The retaining member 78 includes a shaft portion 81, projecting portions 82 and 83, a gripping portion 84, and a switch 85. The shaft portion 81 is inserted into the first hole 712. The protrusions 82 and 83 are provided at the tip of the shaft portion 81. The grip portion 84 is provided at the proximal end of the shaft portion 81. The switch 85 is provided on the grip portion 84. When the switch 85 is pressed, the protrusions 82 and 83 are retracted into the shaft portion 81. When the switch 85 is not pushed, the projecting portions 82 and 83 project from the shaft portion 81.

  With the retaining member 78 inserted into the first hole 712, the projecting portions 82 and 83 are engaged with the latch bar 71, so that the retaining member 78 is fixed to the latch bar 71. The eye 74 is located between the fixing member 76 and the retaining member 78. Accordingly, the latch bar 71 is prevented from being detached from the eye 74 by the retaining member 78. Thereby, it is possible to prevent the guide 5 from falling off the ship 1a.

As shown in FIG. 23, the latch bar 71 is provided with a first connecting portion 713. The retaining member 78 is provided with a second connecting portion 781. A connecting member 80 such as a lobe is connected to the first connecting portion 713 of the latch bar 71 and the second connecting portion 781 of the retaining member 78. The latch bar 71 and the retaining member 78 are connected by a connecting member 80.
As shown in FIG. 22, the guide 5 includes a connecting portion 505. The guide 5 is connected to the hull 2 by a connecting member 79 such as a rope. The connecting member 79 is connected to the connecting portion 505 of the guide 5. Thus, the guide 5 can be prevented from falling off by connecting the guide 5 to the hull 2 by the connecting member 79.

  The guide 5 which concerns on the 1st modification demonstrated above can produce the flat wake with few splashes similarly to 1st Embodiment. Further, the guide 5 can be attached to and detached from the hull 2. When the guide 5 is attached to the port side of the hull 2, the latch bar 71 is inserted into the eye 74 with the eye 74 inserted into the first opening 501. Then, the fixing member 76 is screwed into the first hole 711 and tightened, and the retaining member 78 is attached to the first hole 712. Thereby, the guide 5 can be easily attached to the hull 2.

  When removing the guide 5 from the hull, the fixing member 76 is loosened, and the retaining member 78 is pulled out from the first hole 712 while the switch 85 of the retaining member 78 is pressed. The guide 5 can be easily detached from the hull 2 by pulling the latch bar 71 out of the eye 74.

  Although not shown, when the guide 5 is attached to the starboard of the ship 1a, the eye 74 is passed through the first opening 502. Then, as in the case of being attached to the port side, the latch bar 71 is passed through the eye 74, and the latch bar 71 is fixed by the fixing member 76 and the retaining member 78. Accordingly, the guide 5 can be easily replaced between the port side and the starboard side of the ship 1a.

  The latch bar 71 and the retaining member 78 are connected by a connecting member 80. This prevents the retaining member 78 from dropping into the water.

  FIG. 25 is a view showing the guide 5 according to the second modification. As shown in FIG. 25, the guide 5 according to the second modification includes ribs 503 and 504. The ribs 503 and 504 are provided across the first plate portion 51 and the second plate portion 52. The ribs 503 and 504 are connected to the first plate portion 51 and the second plate portion 52. The ribs 503 and 504 include a first rib 503 and a second rib 504. The first opening 501 and the second opening 502 are disposed between the first rib 503 and the second rib 504. The latch bar 71 is disposed between the first rib 503 and the second rib 504 while being inserted into the eye 74.

  In the guide 5 according to the second modification, the strength of the guide 5 is improved by the ribs 503 and 504. Further, the latch bar 71 is prevented from being detached by the ribs 503 and 504 in a state where the latch bar 71 is inserted into the eye 74.

  25, the guide 5 may include a connecting portion 505. The guide 5 may be connected to the hull 2 by a connecting member 79 such as a rope. The connecting member 79 may be connected to the connecting portion 505 of the guide 5. The connecting portion 505 may be provided on the rib 503. Alternatively, the connecting portion 505 may be provided in another part of the guide 5.

  The connecting member 79 may be connected to the hull 2, the guide 5, and the latch bar 71. For example, the connecting member 79 may be connected to the hull 2, the connecting portion 505 of the guide 5, and the first connecting portion 713 of the latch bar 71. Thereby, it is possible to prevent the guide 5 and the latch bar 71 from dropping into the water.

  FIG. 26 is a diagram illustrating a guide 5 according to a third modification. As shown in FIG. 26, the first plate portion 51 may include a recess 507. In the guide 5 according to the second modified example shown in FIG. 25, the first opening 501 and the second opening 502 are arranged close to each other. However, like the guide 5 according to the third modification shown in FIG. 26, the first opening 501 and the second opening 502 may be spaced apart in the longitudinal direction of the guide 5. The connecting part 505 may be provided on the second plate part 52.

  FIG. 27 is a view showing a guide 5 according to a fourth modification. The guide 5 according to the second modification and the third modification described above includes two ribs 503 and 504. However, as shown in FIG. 27, the guide 5 may include only one rib 506. The rib 506 may be disposed between the first opening 501 and the second opening 502.

  The configurations of the left and right guides 5L and 5R are not limited to those of the second embodiment described above, and may be changed. 28 and 29 are views showing a ship 2b according to a modification of the second embodiment. In the ship 2b according to the modified example of the second embodiment, the left guides 5L and 5R are movable between a deployed position that protrudes from the bottom surface of the hull 2 and a storage position that is disposed along the bottom surface of the hull 2. Provided. FIG. 28 shows the left guide 5L in the deployed position. FIG. 29 shows the left guide 5L in the storage position.

  When the left guide 5L is in the deployed position, the left guide 5L is disposed in the same manner as the guide 5 of the first embodiment described above. That is, the first guide surface 54 of the left guide 5L is disposed so as to extend from a position lateral to the water injection ports 29L and 29R toward the rear of the hull 2 and the center in the width direction of the hull 2. . Further, at least a part of the first guide surface 54 is disposed above the water injection ports 29L and 29R. As a result, a flat wake with little splash can be created.

  A ship 2b according to a modification of the second embodiment includes a left actuator 86L shown in FIG. As shown in FIG. 30, the left guide 5L includes a rotation shaft 87L, and is configured to move between a storage position and a deployment position by rotating around the rotation shaft 87L. In FIG. 30, a solid line indicates the left guide 5L and the left actuator 86L at the deployed position. The broken lines indicate the left guide 5L and the left actuator 86L at the deployed position. The left actuator 86L is connected to the left guide 5L, and moves the left guide 5L to the storage position and the deployment position.

  Specifically, the arm portion 88L is connected to the left guide 5L. The left actuator 86L is a hydraulic cylinder or an electric cylinder. The left actuator 86L is rotatably connected to the arm portion 88L. The left actuator 86L is rotatably connected to the hull 2. By extending the left actuator 86L, the left guide 5L is moved from the storage position to the deployed position. When the left actuator 86L contracts, the left guide 5L is moved from the deployed position to the storage position. However, the left actuator 86L is not limited to a cylinder, and may be another mechanism such as a motor and a gear.

  FIG. 31 is a diagram showing a control system of the ship 2b according to a modification of the second embodiment. As shown in FIG. 31, a ship 2b according to a modification of the second embodiment includes a right guide 5R and a right actuator 86R. The right guide 5R is symmetrical to the left guide 5L and has the same configuration as the left guide 5L. The right actuator 86R is bilaterally symmetric with the left actuator 86L and has the same configuration as the left actuator 86L.

  The left and right actuators 86L and 86R are controlled by the controller 34. The controller 34 can select the left and right guides 5L and 5R by controlling the left and right actuators according to the operation of the input device 33 by the user. For example, when the left guide 5L is selected by the input device 33, the controller 34 controls the left and right actuators 86L and 86R to place the right guide 5R in the storage position and the left guide 5L in the deployed position. To do. Thereby, a flat wake can be generated by the left guide 5L.

  When the right guide 5R is selected by the input device 33, the controller 34 controls the left and right actuators 86L and 86R to place the left guide 5L in the retracted position and the right guide 5R in the deployed position. Thereby, a flat wake can be generated by the right guide 5R. Alternatively, the controller 34 controls the left and right actuators 86L and 86R when the non-use of the left and right guides 5L and 5R is selected by the input device 33, thereby arranging the left guide 5L at the storage position and the right guide. 5R is placed in the storage position.

  Even in the ship 2b according to the modified example of the second embodiment described above, the right guide 5R or the left guide 5L can ensure a wide flat wake region preferable for wake surfing.

  According to the present invention, the guide can suppress the influence of the water flow by the ship propulsion device, and can create a flat wake with little splash.

2 ... Hull, 4L, 4R, 9 ... Ship propulsion device, 5 ... Guide, 5L ... Left guide, 5R ... Right guide, 53 ... Mounting part, 54 ... No. 1 guide surface, 54L ... 1st left guide surface, 54R ... 1st right guide surface, 55 ... 2nd guide surface, 58L ... left movable mechanism, 58R ... right movable mechanism, 59L ... Left opening / closing mechanism, 59R ... Right opening / closing mechanism, 61R ... Right inlet, 61L ... Left inlet, 62R ... Right outlet, 62L ... Right inlet, 86L ... Left actuator, 86R ... Right actuator, 121, 122 ... Side

Claims (24)

The hull,
A ship propulsion device attached to the hull, including a water flow source for propelling the hull;
A guide provided on the hull;
With
The guide extends from a position lateral to the water flow source to the rear of the hull and toward the center in the width direction of the hull.
The guide guides the water flowing on one side of the hull inward, and the timing at which the water flowing on one side of the hull and the water flowing on the other side of the hull merge, A ship that is faster than the case where a guide is not provided in the hull. The guide guides the water flowing on the side of the hull to a position behind and above the water flow source,
The ship according to claim 1. The lower end of the guide is arranged above the lower end of the water flow source,
The ship according to claim 2. The upper end of the guide is disposed above the upper end of the water flow source.
The ship according to claim 2. The guide has a curved shape,
The ship according to claim 2. The guide includes an attachment portion that is detachably attached to the hull.
The ship according to claim 1. The guide can be attached to either the left side or the right side of the water flow generation source in the hull.
The ship according to claim 6. The guide is positioned below the water surface when the boat speed is equal to or lower than a predetermined speed, and is positioned above the water surface when the boat speed is higher than the predetermined speed.
The ship according to claim 1. The predetermined speed is a speed at which the ship slides.
The ship according to claim 8. The guide further includes a movable mechanism that operates to change the direction of water guidance.
The ship according to claim 1. At least a part of the guide is formed integrally with the hull.
The ship according to claim 1. The hull,
A ship propulsion device attached to the hull, including a water flow source for propelling the hull;
A guide provided on the hull;
With
The guide extends from a position lateral to the water flow source to the rear of the hull and toward the center in the width direction of the hull.
The guide guides the water flowing on one side of the hull inward, and the timing at which the water flowing on one side of the hull and the water flowing on the other side of the hull merge, Faster than if no guide is provided on the hull,
The guide further includes an inlet and an outlet of water guided by the guide,
The outlet is narrower than the inlet ;
Ship. The hull includes a side surface positioned in front of a front end of the guide,
A front end of the guide is disposed flush with a side surface of the hull;
The ship according to claim 1. The hull includes a side surface positioned in front of a front end of the guide,
The guide is located inward in the width direction of the hull from the side surface of the hull.
The ship according to claim 1. The hull,
A ship propulsion device attached to the hull, including a water flow source for propelling the hull;
A left guide disposed to the left of the water flow source;
A right guide disposed to the right of the water flow source;
With
The left guide extends from the left side of the water flow source to the rear of the hull and toward the center in the width direction of the hull,
The right guide extends from a position on the right side of the water flow source to the rear of the hull and toward the center in the width direction of the hull.
The left guide guides the water flowing on the left side of the hull inward, and the water flowing on the left side of the hull and the water flowing on the right side of the hull merge when the left guide is used. The timing to do is earlier than when the left guide is not used,
The right guide guides the water flowing on the right side of the hull toward the inside, and the water flowing on the right side of the hull and the water flowing on the left side of the hull merge when the right guide is used. The timing to do is made earlier than when the right guide is not used.
Ship. The hull,
A ship propulsion device attached to the hull, including a water flow source for propelling the hull;
A left guide disposed to the left of the water flow source;
A right guide disposed to the right of the water flow source;
With
The left guide extends from the left side of the water flow source to the rear of the hull and toward the center in the width direction of the hull,
The right guide extends from a position on the right side of the water flow source to the rear of the hull and toward the center in the width direction of the hull.
The left guide guides the water flowing on the left side of the hull inward, and the water flowing on the left side of the hull and the water flowing on the right side of the hull merge when the left guide is used. The timing to do is earlier than when the left guide is not used,
The right guide guides the water flowing on the right side of the hull toward the inside, and the water flowing on the right side of the hull and the water flowing on the left side of the hull merge when the right guide is used. The timing to do is earlier than when the right guide is not used,
The left guide includes a left entrance into which water guided by the left guide enters,
The right guide includes a right entrance into which water guided by the right guide enters,
A left opening and closing mechanism for opening and closing the left entrance;
A right opening mechanism for opening and closing the right entrance;
Further comprising a,
Ship. A guide attached to a hull with a water flow source for propelling the hull,
An attachment part detachably attached to the hull;
With the guide attached to the hull, a first guide surface extending from a position lateral to the water flow source to the rear of the hull and toward the center in the width direction of the hull;
A second guide surface disposed outside the first guide surface;
With
The first guide surface guides water flowing on the side of the hull in a state where the guide is attached to the hull to a position behind and above the water flow generation source,
The second guide surface guides water flowing in one side of the hull to the inside, and when the guide is provided in the hull, water flowing in one side of the hull, The timing at which the water flowing on the other side merges is made earlier than when the guide is not provided on the hull.
guide. The guide has a symmetrical shape,
The guide according to claim 17. The hull,
A ship propulsion device attached to the hull, including a water flow source for propelling the hull;
A guide provided on the hull;
With
The guide guides the water flowing on one side of the hull to the inside, and the guide indicates the timing at which the water flowing on one side of the hull and the water flowing on the other side of the hull merge. Faster than if not provided in the hull,
At least a portion of the guide is disposed above the water flow source;
Ship. The guide is provided movably between a storage position arranged along the bottom surface of the hull and a deployment position arranged protruding from the bottom surface of the hull,
The guide is in the deployed position, and the guide extends from a position lateral to the water flow source to the rear of the hull and toward the center in the width direction of the hull, and at least a part of the guide is , Disposed above the water flow source,
The ship according to claim 19. The guide includes a rotation shaft, and is configured to move around the rotation shaft to move to the storage position and the deployment position.
The ship according to claim 20. An actuator connected to the guide;
The actuator moves the guide to the storage position and the unfolded position;
The ship according to claim 20. The hull,
A ship propulsion device attached to the hull, including a water flow source for propelling the hull;
A guide provided on the hull;
With
The guide guides the water flowing on one side of the hull inward, and the timing at which the water flowing on one side of the hull and the water flowing on the other side of the hull merge, Faster than if no guide is provided on the hull,
The guide guides the water flowing along the side of the hull toward the water flow generated by the water flow generation source, thereby erasing the water splash and generating a wake for wake surfing.
Ship. The hull,
A ship propulsion device attached to the hull, including a water flow source for propelling the hull;
A guide provided on the hull;
With
The guide guides the water flowing on one side of the hull inward, and the timing at which the water flowing on one side of the hull and the water flowing on the other side of the hull merge, Faster than if no guide is provided on the hull,
The guide generates a wake for wake surfing on the side where the guide is disposed with respect to the center in the width direction of the hull by guiding water flowing along the side of the hull to the inside.
Ship.