JP2006044386A - Steering device for small watercraft - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steering device for a small watercraft wherein a position of a steering pole can be adjusted to an arbitrary direction according to the physique or attitude of a driver. <P>SOLUTION: A support shaft 34 is made to protrude from a front end both sides of the steering pole 23, and a guide shaft 35 is made to protrude from a rear part of the support shaft 34. A support shaft slide groove 26 with which the support shaft 34 can be slidably engaged is provided on brackets 25a, 25b provided on a hull 11 side, and a guide shaft slide groove 27 with which the guide shaft 35 can be slidably engaged is provided, being positionally shifted in an upper rear side of the support shaft slide groove 26. Also, the rear part of the guide shaft slide groove 27 is composed of an arc-shaped groove part 28 in a shape in which an arc is drawn in a vertical direction, and provided with a lever 31, etc. for energizing the guide shaft 35 to an upper side. A support shaft engagement recessed part 26a is provided in the support shaft slide groove 26, and a guide shaft engagement recessed part 28b is provided in the guide shaft slide groove 27. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a steering device for a personal watercraft provided with a steering pole whose position can be changed.

2. Description of the Related Art Conventionally, there is a personal watercraft that travels on the water by driving a driver while standing on a step stand provided at the rear of a hull. In this small planing boat, the height of the steering handle provided at the rear end of the steering pole can be increased by connecting the front end of the steering pole to the front side part of the upper surface of the hull and making it rotatable. There is one that can be changed (see, for example, Patent Document 1).
Japanese Patent No. 2757999

  However, in the conventional small planing boat described above, the steering pole rotates around the fulcrum of the hinge connecting portion, but cannot move in the front-rear direction, so the position of the steering pole is adjusted according to the physique and posture of the driver. There is a problem that can not be. In addition, since the steering pole always rotates up and down, it is suitable for sporty ship maneuvering, but there is also a problem that the burden on the arm becomes large and it is not suitable for maneuvering for a long time.

  The present invention has been made to address the above-described problems, and an object of the present invention is to provide a steering device for a personal watercraft that can adjust the position of a steering pole in an arbitrary direction according to the physique and posture of a driver. It is to be.

  In order to achieve the above-described object, a structural feature of the steering device for a personal watercraft according to the present invention is a steering device for a personal watercraft that can change the position of the steering pole according to the physique and posture of the driver. Engagement parts provided on both sides of the front end of the steering pole and on the front side of the upper part of the hull are provided along the front-rear direction so that the engagement part is movable in the front-rear direction. And an engaged portion that can be engaged.

  In this small planing boat steering device, the engaging part of the steering pole is movable in the front-rear direction while being engaged with the engaged part provided on the hull, so the driver can The position of the steering pole can be changed to an optimum position or a preferred position according to the posture when driving. As a result, it becomes easier to operate the small planing boat, and it becomes possible to operate the boat according to preference. In this case, the engaging portion and the engaged portion can use mechanisms having various configurations, and the steering pole moves in the front-rear direction with respect to the hull via the engaging portion and the engaged portion. Any structure can be used.

  Further, another structural feature of the steering device for a personal watercraft according to the present invention is that the engaging portion is constituted by a support shaft extending substantially horizontally from both sides of the front end portion of the steering pole, and the engaged portion is The support shaft is configured by a support shaft slide groove that can be engaged in a slidable state. According to this, since the steering pole can be rotated around the support shaft, when the support shaft is positioned at the rear end portion of the support shaft slide groove, the sporty while moving the steering grip operation grip side up and down. Maneuvering. In this case, the support shaft may be composed of a pair of shaft portions that protrude from both sides of the front end portion of the steering pole, or one shaft portion that protrudes from both sides through the front end portion of the steering pole. You may comprise.

  Still another structural feature of the steering apparatus for a personal watercraft according to the present invention is that a guide shaft extending substantially horizontally from the rear portion of the steering pole on both sides of the steering pole from the rear portion, and an upper portion of the support shaft slide groove. In addition, a guide shaft slide groove is provided that is shifted from the support shaft slide groove by a predetermined distance to the rear side and can be engaged in a state in which the guide shaft is slidable.

  According to this, since the support shaft can be moved back and forth along the support shaft slide groove, and the guide shaft can be moved back and forth along the guide shaft slide groove, the steering pole can be driven by both the support shaft and the guide shaft. Move back and forth while being supported. Therefore, the steering pole moves back and forth while maintaining a predetermined posture without tilting. In this case, the inclination angle of the steering pole can be adjusted according to the positional relationship between the support shaft slide groove and the guide shaft slide groove.

  For example, when the support shaft slide groove and the guide shaft slide groove are arranged in parallel, the steering pole moves back and forth with the same inclination angle. Further, when the distance between the support shaft slide groove and the guide shaft slide groove is increased toward the rear side, the steering pole becomes higher as the steering pole moves toward the rear side. Furthermore, the inclination angle of the steering pole can be changed according to the position by changing the distance between the support shaft slide groove and the guide shaft slide groove depending on each portion.

  In addition, still another structural feature of the steering device for a personal watercraft according to the present invention is that the rear part of the guide shaft slide groove is drawn in an arc in the rear vertical direction around the rear end part of the support shaft slide groove. This is because the steering pole can be rotated up and down around the rear end portion of the support shaft slide groove when the steering pole is positioned at the rearmost portion. . In this case, when the guide shaft is positioned in the arcuate groove portion, an urging means for urging the guide shaft toward the upper side of the arcuate groove portion can be provided.

  According to this, the steering pole can move back and forth along the support shaft slide groove and the guide shaft slide groove, and when the steering pole is located at the rearmost portion, the steering pole is the rear end portion of the support shaft slide groove. It is possible to rotate in the vertical direction around the (support shaft). Therefore, it is possible to perform a sporty ship maneuvering that stands and travels while moving the steering handle side portion of the steering pole up and down.

  Further, by urging the guide shaft upward using the urging means, it is possible to cancel the force that the steering pole tends to descend due to its weight. As a result, the load applied to the driver's hand is reduced, and the driver can move the steering pole up and down with a slight force, facilitating the driving operation. The urging force of the urging means is set to a magnitude that substantially balances the gravity of the steering pole that is going to descend by its own weight, and when the driver releases the operation grip, the steering pole stops at that position. Or it is preferable to descend slowly. As the biasing means in this case, for example, a mechanism in which a spring and a lever are combined can be used.

  Still another structural feature of the steering device for a personal watercraft according to the present invention is that the support shaft engaging recess can be engaged with the upper edge of the front end portion of the support shaft slide groove. When the steering pole is positioned at the forefront and the support shaft is engaged with the engagement recess for the support shaft, the steering pole is maintained in a fixed state.

  According to this, since the downward force due to the weight of the steering pole acts on the rear part of the steering pole, the front end of the steering pole can be pushed upward with the guide shaft as a fulcrum, and the support shaft is more rigid Engages in the engagement recess for the support shaft. For this reason, the driver can operate the vehicle with the steering pole fixed to the forefront, and in this case, the driver is suitable for maneuvering while the driver is sitting on the seat.

  Further, in the case of such a boat maneuvering, the driver usually holds the operation handle of the steering handle while pressing it from above, so that the support shaft is more firmly engaged with the engagement recess for the support shaft, Steering poles reliably maintain a fixed state. When the engagement between the support shaft and the support shaft engaging recess is released and the steering pole is moved rearward, the steering handle side of the steering pole is lifted. As a result, the steering pole rotates about the guide shaft, the front end portion of the steering pole descends, and the engagement between the support shaft and the support shaft engaging recess is released.

  Still another structural feature of the steering apparatus for a personal watercraft according to the present invention is that the guide shaft engaging recess can engage with a predetermined portion of the lower edge of the guide shaft slide groove. The steering pole is maintained in a fixed state when the guide shaft is engaged with the guide shaft engaging recess.

  According to this, the steering pole can be fixed at an arbitrary position. For example, when the guide shaft engaging recess is provided at the rear end of the guide shaft slide groove, the driver can operate with the steering pole fixed to the rearmost portion. It is suitable for maneuvering while standing on the step platform at the rear of the hull.

  Further, when the rear portion of the guide shaft slide groove is formed by an arc-shaped groove portion and the guide shaft engaging recess is provided at the upper end portion of the arc-shaped groove portion, the guide shaft is engaged with the guide shaft engaging recess. By lifting the steering pole upward and pulling it backward from the state, the engagement is released, and the rear portion of the steering pole can be moved up and down along the arc-shaped groove. In this case, the guide shaft engaging recesses can be provided at any of a plurality of locations. Furthermore, a support shaft engagement recess can be provided at a predetermined portion of the upper edge of the support shaft slide groove to fix both the support shaft and the guide shaft. According to this, the steering pole can be more securely fixed at an arbitrary position.

  Still another structural feature of the small planing boat steering apparatus according to the present invention is that the engaging portion is configured by an engaging shaft portion or an engaging shaft hole extending in a substantially horizontal direction, and the engaged portion is A bracket including an engaged shaft hole or an engaged shaft portion that engages with the engagement shaft portion or the engagement shaft hole in a state of being rotatable around the shaft and the bracket is supported in a state of being movable in the front-rear direction. It is composed of a rail part.

  In this small planing boat steering apparatus, the steering pole is attached to a bracket movable along the rail portion in a rotatable state, and the steering pole is movable along the rail portion together with the bracket. This also makes it possible to move the steering pole forward and backward, and to rotate it up and down around the engaging portion.

  Still another structural feature of the steering device for a personal watercraft according to the present invention is that an extendable tilt adjusting portion is provided between the steering pole and the bracket, and the length of the tilt adjusting portion is adjusted. The steering pole inclination angle can be changed to an arbitrary angle. According to this, not only the position of the steering pole can be adjusted in the front-rear direction, but also the inclination angle can be adjusted arbitrarily. In this case, a mechanical mechanism that expands and contracts by adjusting a gas damper or a screw can be used as the tilt adjusting unit. Further, it is preferable that an operation unit for changing the length of the inclination adjusting unit is disposed in the vicinity of the steering handle of the steering pole so that the driver can easily operate.

  Still another structural feature of the steering device for a personal watercraft according to the present invention is that a long slot for a cable along the front-rear direction is provided in the front side portion of the upper part of the hull, and the length of the long slot for the cable is long. The elastic seal part with a cut along the direction is provided at the peripheral part of the cable long hole to seal the cable long hole, and various controls installed on the steering pole and each of the various installed on the hull side The cable connecting the device is passed through the cable slot.

  In a personal watercraft equipped with a steering pole as in the present invention, a throttle lever and various operating elements are provided in the vicinity of an operation grip of the steering pole, and these operating elements and a control device installed in the hull. The devices are connected by cables such as electric wires. Such a cable also moves following the steering pole when the steering pole is moved in the front-rear direction, so a mechanism is required to prevent the cable from being damaged by excessive force. Become. Therefore, in the present invention, a cable slot is provided, and the cable is passed through the cable slot in a movable state.

  As a result, the portion of the cable corresponding to the cable slot is moved back and forth together with the steering pole, and is prevented from being pulled with excessive force. In addition, in order to prevent water from entering the hull from the cable slot, an elastic seal part having a cut along the longitudinal direction of the cable slot is provided at the peripheral part of the cable slot. It has been. As a result, the cable can be moved along the cut line, and the portion other than the portion where the cable is located in the long hole for the cable is sealed by the elastic seal portion to prevent water from entering.

  Further, another structural feature of the small planing boat steering apparatus according to the present invention is that a long slot for a cable along the front-rear direction is provided in the front side portion in the upper part of the hull, and is installed on the steering pole. Pass cables connecting various controls and devices installed on the hull side through the cable slot, and follow the forward and backward movement of the steering pole in the cable on the lower side of the peripheral edge of the cable slot. A bag-like member is provided that covers the moving part while keeping the moving part movable. This also prevents water from entering the hull. Further, by using both the elastic seal portion and the bag-like member, it is possible to more reliably prevent water from entering the hull.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. 1 and 2 show a personal watercraft 10 provided with a steering device 20 according to the embodiment. In this personal watercraft 10, the hull 11 is composed of a deck 11a and a hull 11b, and the peripheral portions of the deck 11a and the hull 11b are joined in a watertight manner to form a gunnel portion 11c around the hull 11. . A steering handle 21 having an operation grip 21 a is provided at the approximate center in the front-rear direction of the upper portion of the hull 11, and a seat 12 is provided behind the steering handle 21.

  The steering handle 21 is included in a steering device 20 to be described later, and has a connecting pole 22 attached to the front side of the deck 11a so as to be movable in the front-rear direction and rotatable in the vertical direction around the tip. Via the hull 11. The steering handle 21 is coupled to the rear end portion of the connection pole 22 so as to be rotatable in the left-right direction around the rear end portion of the connection pole 22. A steering pole 23 is constituted by the steering handle 21 and the connection pole 22.

  Further, the seat 12 can be advanced and retracted from within the hatch cover 13 formed at the center upper part in the front-rear direction of the hull 11, and when the small planing boat 10 is operated with the driver standing, the hatch cover is provided. It is housed on a rail 14 provided in 13 and brought into the state shown in FIGS. Further, when driving the personal watercraft 10 with the driver sitting, the seat 12 is pulled out from the hatch cover 13 and supported by the support rod 12a as shown in FIGS. The hatch cover 13 is rotatable around a support shaft (not shown) provided at the lower rear end. By rotating the hatch cover 13 with the steering pole 23 raised upward, the hatch cover 13 is rotated. The upper surface of the deck 11a can be opened. As a result, the inside of the hull 11 can be inspected and repaired.

  On the rear part of the hull 11, a step base 15 made of a recess for a driver to stand is provided, and side wall parts 16 a and 16 b are formed on the left and right sides of the step base 15. Further, a mounting concave portion 17 (the mounting concave portion of the side wall portion 16b is not shown) is formed on the lower side outside the side wall portions 16a and 16b, and the auxiliary hulls 18a and 18b are attached to the mounting concave portion 17, respectively. It has been. The auxiliary hulls 18a and 18b are installed in a state in which the position can be adjusted in the vertical direction via an elevating mechanism 19 composed of a rotation drive device or the like. Enlarge. Thereby, the stability of the personal watercraft 10 is improved. In addition, when the auxiliary hulls 18a and 18b are positioned above, the chine width becomes small. As a result, the personal watercraft 10 becomes sporty while the bank angle during turning increases.

  Further, as shown in FIGS. 5 and 6, an accommodation support portion 24 that accommodates and supports the front end side portion of the connection pole 22 in a state where it can be advanced and retracted is provided on the upper surface of the deck 11 a. The accommodation support portion 24, the steering pole 23, and the like constitute the steering device 20 according to the present invention. The accommodation support portion 24 is constituted by a box-like accommodation portion having an open rear end portion, the upper surface portion is constituted by the surface portion 24a of the deck 11a, and the bottom surface portion is constituted by the base portion 24b of the deck 11a. Further, both side portions are constituted by plate-like brackets 25a and 25b, and the bracket 25a and 25b are provided with a support shaft slide groove 26 and a guide shaft slide groove 27 (a support slide groove and a guide slide groove of the bracket 25b). Are not shown).

  The support shaft slide groove 26 is formed of a long hole that is slightly upwardly inclined from the front end portion to the rear end portion along the inclination of the base portion 24b of the deck 11a, and the inclination angle of the rear side portion is inclined to the front side portion. It is formed so as to be slightly larger than the angle. A support shaft engaging recess 26 a is formed at the upper edge of the front end portion of the support shaft slide groove 26. The support shaft engaging recess 26a extends upward with the same width as the support shaft slide groove 26, and is formed so that the shape of the upper end viewed from the side is substantially semicircular.

  The guide shaft slide groove 27 is formed by a long hole formed in the upper rear portion of the support shaft slide groove 26 in the brackets 25a and 25b, and is inclined upward from substantially above the center portion of the support shaft slide groove 26. It extends rearward, and the rear part is constituted by an arcuate groove 28. The inclination angle of the front side portion of the guide shaft slide groove 27 is set to be slightly larger than the inclination angle of the rear side portion of the support shaft slide groove 26. The rear portion of the front side portion of the guide shaft slide groove 27 is bent so as to curve upward, and then communicates with the arc-shaped groove portion 28.

  The arc-shaped groove portion 28 is formed in an arc shape centered on the rear end portion 26 b of the support shaft slide groove 26, and the lower end portion 28 a has a height of the rear end portion 26 b of the support shaft slide groove 26. It is set to a height approximately equal to the height. A guide shaft engaging recess 28b is formed at the lower edge of the portion where the rear end of the front portion of the guide shaft slide groove 27 and the upper end of the arcuate groove 28 intersect. . The guide shaft engaging recess 28b is formed so as to have a substantially semicircular shape when viewed from the side surface.

  Further, a lever 31 and a spring 32 constituting the urging means according to the present invention are attached to the outer surfaces of the brackets 25a and 25b, respectively. The lever 31 is formed in a substantially bowl shape having a long side portion 31 a and a short side portion 31 b, and a base end side portion is supported in a rotatable state by a rotation support shaft 33. And the spring 32 is spanned between the front end side part of the short side part 31b, and the substantially center part in the outer surface upper part of bracket 25a, 25b, and urges | biases the long side part 31a of the lever 31 upwards. ing. The long side portion 31a extends to the rear portion of the arc-shaped groove portion 28, and the rear end portion (upper end portion) reaches the position of the guide shaft engaging recess portion 28b when the spring 32 contracts to the minimum length. It is configured.

  Further, a hole portion penetrating both sides is formed in the front end portion of the connection pole 22, and a support shaft 34 is fixed to the hole portion. Both end portions of the support shaft 34 protrude from the side surface of the connection pole 22 and extend into the support shaft slide groove 26. Further, a guide shaft 35 is fixed to a portion of the lower portion of the connection pole 22 behind the support shaft 34, and both end portions of the guide shaft 35 extend into the guide shaft slide groove 27. The guide shaft 35 is positioned at the front end portion 27 a of the guide shaft slide groove 27 when the support shaft 34 is positioned at the front end portion of the support shaft slide groove 26. It is attached so as to be positioned in the arcuate groove 28 when positioned at the rear end 26b.

  In addition, a cable 36 for connecting a throttle operator provided on the steering handle 21 or a control device (not shown) installed in the hull 11 passes through the connection pole 22. Yes. As shown in FIGS. 7 and 8, the cable 36 passes through the cable long hole 37 formed in the base 24b of the deck 11a and extends into the hull 11 from the connection pole 22 side. The cable long hole 37 is formed in the center portion between the brackets 25a and 25b in the base portion 24b along the longitudinal direction of the brackets 25a and 25b. Further, a rubber elastic seal portion 38 is attached to the peripheral portion of the cable long hole 37, and a bag-like member 39 is attached to the lower portion of the peripheral portion of the cable long hole 37.

  The elastic seal portion 38 is curved so as to rise from the upper surface of the fixing portion 38a, and a fixing portion 38a attached along the peripheral portion of the cable long hole 37 with the peripheral edge portion of the cable long hole 37 sandwiched from above and below. And a sealing portion 38b formed as described above. A cut 38c along the longitudinal direction of the seal portion 38b is formed at the top of the seal portion 38b, and the cable 36 passes through the cut 38c in a movable state.

  Further, the bag-like member 39 is configured by a bag-like body whose upper end opening edge is watertightly fixed to the lower part of the peripheral edge of the cable slot 37 and whose lower end is gradually narrowed. The lower end portion of the bag-like member 39 is fixed to a predetermined portion of the cable 36 in a watertight manner. Further, the length of the portion of the cable 36 located in the bag-like member 39 is set to a length that allows the cable 36 to move following the back-and-forth movement of the steering pole 23. For this reason, even if the steering pole 23 moves back and forth, the portion located in the connection pole 22 and the portion located below the bag-like member 39 in the cable 36 are respectively connected to the corresponding connection pole 22 or the hull 11. Stay stationary.

  Further, as shown in FIGS. 1 and 2, an engine 41 is provided at the center of the bottom portion in the hull 11, and a front side portion in the hull 11 is used to guide external air into the hull 11. An air duct 42 is provided. The air duct 42 is formed so as to extend vertically from the upper part of the hull 11 to the bottom part of the hull 11, and sucks air outside the ship from the upper end through a waterproof structure (not shown) provided on the deck 11a. The structure which guide | induces from the part to the bottom part side in the hull 11 is taken. A fuel tank 43 for storing fuel is installed on the front side in the hull 11.

  An intake box 44 is installed between the engine 41 and the fuel tank 43 in the hull 11. The intake box 44 supplies the air taken into the hull 11 through the air duct 42 to the engine 41. Further, the engine 41 is supplied with fuel from the fuel tank 43. The fuel supplied from the fuel tank 43 is atomized by a fuel injection device (not shown) and injected into the cylinder of the engine 41. At this time, the fuel is mixed with the air supplied from the intake box 44 and sent to the engine 41 as an air-fuel mixture, and the air-fuel mixture explodes by ignition of an ignition device provided in the engine 41.

  Further, a crankshaft (not shown) extends rearward from the rear portion of the engine 41. The crankshaft changes the vertical movement of a piston (not shown) due to the explosion of the air-fuel mixture into a rotational motion. An impeller shaft (not shown) is connected to the crankshaft, and the impeller shaft is connected to a jet propulsion unit 45 provided at the stern of the hull 11. The impeller shaft is connected to an impeller (not shown) attached to the inside of the jet propulsion unit 45, and transmits the rotational force of the crankshaft driven by the engine 41 to the impeller to rotate the impeller.

  The jet propulsion unit 45 includes a water introduction port 45a that opens to the bottom of the hull 11 and an injection nozzle (not shown) that opens to the stern. The water introduced from the water introduction port 45a is injected by the rotation of the impeller. A propulsive force is generated in the hull 11 by spraying from the nozzle. The jet propulsion unit 45 is attached to the bottom portion of the stern of the hull 11 while being separated from the main body side of the hull 11 by a casing (not shown), and the impeller shaft penetrates the casing to The jet propulsion unit 45 extends from the 41 side. A steering nozzle (not shown) is attached to the rear of the injection nozzle. The steering nozzle is connected to the steering handle 21 via a cable 36 and an operation wire, and swings left and right in accordance with the operation of the steering handle 21.

  The engine 41 is connected to an exhaust device including exhaust pipes 46a and 46b and a water lock 46c. The exhaust pipe 46a sends the combustion gas discharged from the engine 41 to the water lock 46c. The water lock 46c is composed of a tank having a wide lower portion and a narrow upper portion, and an exhaust pipe 46a is connected to the lower side of the side surface, and an exhaust pipe 46b is connected to the upper surface. The exhaust pipe 46b extends upward from the upper surface of the water lock 46c, and then extends downward at the rear. The downstream end of the exhaust pipe 46 b opens to a casing for isolating the jet propulsion machine 45 from the main body side of the hull 11, and communicates with the outside from the rear end of the hull 11.

  In addition to the above-described devices, the small planing boat 10 is an electric control device including a CPU, a ROM, a RAM, a timer, and the like, an electrical box that houses various electric devices, and various small boats such as various sensors and switches. Various devices necessary for driving 10 safely are provided.

  Next, an operation in the case of running the personal watercraft 10 configured as described above will be described. When the driver runs the personal watercraft 10 while sitting on the seat 12, the driver first pulls the seat 12 out of the hatch cover 13 and supports it on the support rod 12a. Further, the steering handle 21 side is pressed downward with the steering pole 23 positioned at the forefront. As a result, as shown in FIG. 9, the support shaft 34 at the tip of the connection pole 22 engages with the support shaft engagement recess 26a of the support shaft slide groove 26, and the steering pole 23 is fixed. Become. At this time, the guide shaft 35 is positioned at the front end portion 27 a of the guide shaft slide groove 27.

  Next, the operator grips the small planing boat 10 with the operation grip 21 a by hand and sits on the seat 12. Then, a start switch (not shown) is turned on. As a result, the personal watercraft 10 becomes ready to travel, and the driver operates the steering handle 21 and operates the throttle operator provided on the operation grip 21a, so that the personal watercraft 10 responds to each operation. The vehicle travels in a predetermined direction at a predetermined speed. At this time, by manipulating the elevating mechanism 19 and moving the auxiliary hulls 18a and 18b up and down, the ship can be operated according to the driver's preference.

  Next, when the driver runs the personal watercraft 10 while standing on the step table 15, the seat 12 is pushed into the hatch cover 13 while the support bar 12 a is contracted and accommodated on the rail 14. To do. Further, the steering handle 21 is lifted upward to release the engagement between the support shaft 34 and the support shaft engaging recess 26a, and the steering pole 23 is pulled rearward. As a result, the steering handle 21 moves along the track indicated by the one-dot chain line a in FIG. 5, and the steering pole 23 is in the state shown in FIG.

  That is, in this state, the support shaft 34 is positioned at the rear end portion 26b of the support shaft slide groove 26, and the guide shaft 35 is engaged with the guide shaft engaging recess 28b. Therefore, when the driver standing on the step base 15 holds the steering handle 21 downward, the steering pole 23 is maintained in the state shown in FIG. This makes it easier to operate the boat while the driver is standing.

  Further, when the driver makes a sporty run such as turning the small planing boat 10 rapidly while moving the steering pole 23 up and down while standing on the step table 15, the steering handle 21 is lifted upward. Pull the steering pole 23 backward. As a result, the engagement between the guide shaft 35 and the guide shaft engaging recess 28 b is released, and the guide shaft 35 becomes movable in the arcuate groove 28. Therefore, the steering handle 21 can move along the track indicated by the alternate long and short dash line b in FIG. 5, and when the guide shaft 35 is positioned at the lower end 28 a of the arcuate groove 28, the steering pole 23 is It will be in the state shown.

  In a state where the guide shaft 35 is positioned in the arcuate groove 28, the guide shaft 35 is biased upward by the lever 31 and the spring 32. For this reason, the driver moves the steering pole 23 within the range shown in FIGS. 10 and 11 (the range of the trajectory indicated by the one-dot chain line b in FIG. 5) simply by gently operating the steering handle 21 up and down. be able to. Thereby, the driver can perform a sporty ship maneuvering while changing the posture.

  As described above, in the personal watercraft 10 according to the present embodiment, the driver can change the position of the steering pole 23 according to his / her physique and posture, so that the operation of the personal watercraft 10 is facilitated. Or make it possible to maneuver according to your preference. Further, when the steering pole 23 is positioned at the foremost part and the support shaft 34 is engaged with the support shaft engaging recess 26a, the steering pole 23 can be fixed, so that the driver can be stably seated on the seat 12. Can be operated. When the steering pole 23 is positioned at the rearmost part, the steering pole 23 can rotate about the support shaft 34, so that the sporty vessel can be operated while moving the steering handle 21 up and down.

  Further, in the steering device 20 of the personal watercraft 10 according to the present embodiment, the urging means including the lever 31 and the spring 32 is provided, and the steering pole 23 is moved when the guide shaft 35 is positioned in the arcuate groove 28. It is urged upward. For this reason, the force for the driver to operate the steering handle 21 is reduced, and the driver can move the steering handle 21 up and down with a slight force, thereby facilitating the driving operation. In addition, a guide shaft engaging recess 28 b with which the guide shaft 35 can be engaged is provided at the upper end of the arc-shaped groove 28. For this reason, the steering pole 23 can be fixed in the state shown in FIG. 10, and the driver can easily operate the boat while standing on the step table 15.

  In the above-described embodiment, since the cable slot 37 for passing the cable 36 is provided in the base 24b of the deck 11a, the cable 36 can be moved together with the steering pole 23 and pulled with an unreasonable force. And it is prevented from being damaged. Moreover, since the elastic seal part 38 provided with the cut | interruption 38c is provided in the peripheral part of the cable long hole 37, permeation of the water into the ship body 11 is prevented. Furthermore, since the bag-like member 39 is provided on the lower side of the cable long hole 37 and the cable 36 is passed through the bag-like member 39, it is possible to more reliably prevent water from entering the hull 11.

(Second Embodiment)
12 to 14 show a steering device 50 according to a second embodiment of the present invention. The steering device 50 includes a rail portion 51, a bracket 52 that is movably attached to the rail portion 51, and a steering pole 53 that is rotatably attached to the bracket 52. The rail portion 51 is composed of a pair of rails 51a and 51b arranged on the base portion 24b of the deck 11a at a predetermined interval on the left and right, and extends in the front-rear direction of the deck 11a. And the engaging grooves 54a and 54b are formed in the opposing surface of the rails 51a and 51b along the longitudinal direction of the rails 51a and 51b, respectively. Each of the rails 51a and 51b is provided with a plurality of engagement holes 55 penetrating both side surfaces at regular intervals in the front-rear direction.

  The bracket 52 includes a bottom surface portion 52a and substantially triangular side surface portions 52b and 52c that support the steering pole 53 from both sides. The engagement grooves 54a and 54b of the rails 51a and 51b are formed on both sides of the bottom surface portion 52a. Engagement protrusions 56a and 56b are formed to engage with each other in a movable state. Moreover, a hole is formed in the approximate center of the engagement protrusions 56a and 56b, and the pin 57a of the locking member 57 is inserted into the hole so as to be able to advance and retract. The pin 57a can be advanced and retracted by the rotation of the rotating portion 57b. When the pin 57a advances, the pin 57a passes through the hole and engages with the engaging hole 55 of the rails 51a and 51b. As a result, the bracket 52 is fixed at a predetermined position of the rail portion 51. The rotating portion 57b is connected to an operating lever 58 attached to the steering handle 53a via a push-pull cable 57c, and rotates by operating the operating lever 58 to move the pin 57a forward and backward.

  Further, a support hole is formed in the upper side portion of the side surface portions 52b and 52c, and the support shaft 59 as the engagement shaft portion of the present invention provided at the distal end portion of the connection pole 53b is rotatable in the support hole. It is attached in a state. A torsion spring 61 is attached to the support shaft 59. One end of the torsion spring 61 is fixed to the bottom surface 52a of the bracket 52, and the other end is applied to the inner upper surface of the connection pole 53b. The steering pole 53 is biased upward by the torsion spring 61.

  Further, an inclination adjusting portion 62 made of a gas damper is stretched over the rear lower portions of the side portions 52b and 52c and the lower portion at the substantially central portion of the connection pole 53b. The inclination adjusting unit 62 is connected to the operation lever 58 via the cable 62 a and expands and contracts according to the operation of the operation lever 58. Thereby, the steering pole 53 can be adjusted to an arbitrary inclination angle. The operation lever 58 includes an operation element for operating the locking member 57 and an operation element for operating the inclination adjusting unit 62. The configuration of the steering device 50 and other parts of the personal watercraft to which the steering device 50 is attached are the same as those in the first embodiment.

  Since it comprised in this way, the steering pole 53 can be positioned in the arbitrary positions of the front-back direction by engaging the pin 57a with the arbitrary engagement holes 55 of the rails 51a and 51b. Further, by adjusting the length of the tilt adjusting unit 62, the tilt angle of the steering pole 53 can be adjusted to an arbitrary angle. Further, by keeping the length of the inclination adjusting unit 62 fixed and allowing it to freely expand and contract, it is possible to operate the boat while rotating the steering pole 53 up and down. At this time, since the steering pole 53 is biased upward by the torsion spring 61, the driver can easily operate the steering pole 53. Other functions and effects of the steering device 50 are the same as those in the above-described embodiment.

  Further, the steering device for a personal watercraft according to the present invention is not limited to the above-described embodiment, and can be implemented with appropriate modifications. For example, the shapes of the support shaft slide groove 26 and the guide shaft slide groove 27 in the first embodiment described above are not limited to the shapes described above, and can be changed as appropriate according to the purpose of use. In the first embodiment, the support shaft engaging recess 26a and the guide shaft engaging recess 28b are provided one by one. However, a plurality of these may be provided.

  That is, the support shaft engaging recess is provided at the upper edge of the support shaft slide groove 26 with a predetermined interval, and the guide shaft engagement recess is maintained at the lower edge of the guide shaft slide groove 27 with a predetermined interval. Can be provided. According to this, the steering pole 23 can be fixed at an arbitrary position in the front-rear direction. Furthermore, the positions where the support shaft engaging recesses and the guide shaft engaging recesses are respectively formed can be changed and provided one by one, or the positions and number of the forming can be changed as appropriate. In addition, the structures and materials of the members constituting the steering devices 20 and 50 and the personal watercraft 10 other than those described above can be changed as appropriate within the technical scope of the present invention.

1 is a side view showing a personal watercraft provided with a steering device according to a first embodiment of the present invention. FIG. 2 is a plan view of the personal watercraft shown in FIG. 1. It is a side view which shows the state which accommodated the sheet | seat of the small planing boat shown in FIG. FIG. 4 is a plan view of the personal watercraft shown in FIG. 3. It is a side view which shows a steering device. It is a top view which shows the state which a steering pole moves to the front-back direction. It is a side view which shows the state which a steering pole moves to the front-back direction. It is 8-8 sectional drawing of FIG. It is a side view which shows a state when a steering pole is located in the foremost part. It is a side view which shows a state when a steering pole is located in the rear upper part. It is a side view which shows a state when a steering pole is located below the rearmost part. It is a side view which shows the steering device which concerns on 2nd Embodiment. It is 13-13 sectional drawing of FIG. It is a bottom view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Small planing boat, 11 ... Hull, 20, 50 ... Steering device, 21, 53a ... Steering handle, 22, 53b ... Connection pole, 23, 53 ... Steering pole, 25a, 25b, 52 ... Bracket, 26 ... Support shaft Slide groove for supporting shaft, 26b: rear end portion, 27 ... slide groove for guide shaft, 28 ... arc-shaped groove portion, 28b ... engaging recess for guide shaft, 31 ... lever, 32 ... spring, 33 ... Rotating support shaft, 34, 59 ... Support shaft, 35 ... Guide shaft, 36 ... Cable, 37 ... Long hole for cable, 38 ... Elastic seal part, 38c ... Cut, 39 ... Bag-like member, 51 ... Rail part, 51a, 51b... Rail, 62.

Claims (11)

A steering device for a small planing boat that can change the position of the steering pole according to the physique and posture of the driver,
Engaging portions provided on both sides of the front end of the steering pole;
A small planing boat comprising an engaged portion that is provided along a front-rear direction at a front side portion in an upper portion of a hull, and that can be engaged in a state where the engagement portion is movable in the front-rear direction. Steering device.   The engaging portion is constituted by a supporting shaft extending substantially horizontally from both sides of the front end portion of the steering pole, and the supporting shaft slide groove can be engaged with the engaged portion in a state in which the supporting shaft is slidable. The steering apparatus for a personal watercraft according to claim 1, comprising: A guide shaft extending substantially horizontally from a rear portion of the support pole on both sides of the steering pole;
A guide shaft slide groove which is provided above the support shaft slide groove at a position rearward from the support shaft slide groove by a predetermined distance and can be engaged in a slidable state. A steering apparatus for a personal watercraft according to claim 2, comprising:   The rear portion of the guide shaft slide groove is formed of an arc-shaped groove portion having a circular arc shape in the rear vertical direction with the rear end portion of the support shaft slide groove as a center, and the steering pole is positioned at the rearmost portion. 4. The steering apparatus for a personal watercraft according to claim 3, wherein the steering pole is rotatable up and down around a rear end portion of the support shaft slide groove. 5.   5. The steering apparatus for a personal watercraft according to claim 4, further comprising an urging unit that urges the guide shaft toward an upper side of the arc-shaped groove when the guide shaft is positioned in the arc-shaped groove.   An engagement recess for a support shaft that can be engaged with the support shaft is provided at an upper edge of the front end portion of the slide groove for the support shaft, and the steering shaft is positioned at the foremost portion so that the support shaft is moved to the support shaft. The steering apparatus for a personal watercraft according to any one of claims 3 to 5, wherein the steering pole is maintained in a fixed state when being engaged with the engagement recess.   When a guide shaft engaging recess that can be engaged with the guide shaft is provided at a predetermined portion of the lower edge of the guide shaft slide groove, and the guide shaft is engaged with the guide shaft engaging recess. The steering device for a personal watercraft according to any one of claims 3 to 6, wherein the steering pole is maintained in a fixed state.   The engagement portion is configured by an engagement shaft portion or an engagement shaft hole extending in a substantially horizontal direction, and the engaged portion can be rotated about the axis in the engagement shaft portion or the engagement shaft hole. The steering of a personal watercraft according to claim 1, comprising a bracket provided with an engaged shaft hole or an engaged shaft portion to be engaged with each other and a rail portion that supports the bracket in a state in which the bracket can be moved in the front-rear direction. apparatus.   The tilt angle of the steering pole can be changed to an arbitrary angle by providing an extendable tilt adjusting portion between the steering pole and the bracket and adjusting the length of the tilt adjusting portion. The small planing boat steering device described.   A cable oblong hole is provided along the front-rear direction in the front side portion of the upper portion of the hull, and an elastic seal portion provided with a cut along the longitudinal direction of the cable oblong hole is provided at the periphery of the cable oblong hole. The cable long hole is sealed by providing the cable, and the cable for connecting the various operating elements installed on the steering pole and the respective devices installed on the hull side is passed through the cable long hole. Item 10. A steering device for a personal watercraft according to any one of Items 1 to 9. A cable for connecting various operators installed on the steering pole and each device installed on the hull side by providing a cable elongated hole along the front-rear direction in the front side portion in the upper part of the hull. Through the cable elongated hole, and a bag covering the lower part of the peripheral edge of the cable elongated hole with the portion that moves following the forward and backward movement of the steering pole in the cable remaining movable. The steering device for a personal watercraft according to any one of Claims 1 to 10, wherein a steering member is provided.

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