US20210197931A1 - Personal watercraft - Google Patents
Personal watercraft Download PDFInfo
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- US20210197931A1 US20210197931A1 US16/730,144 US201916730144A US2021197931A1 US 20210197931 A1 US20210197931 A1 US 20210197931A1 US 201916730144 A US201916730144 A US 201916730144A US 2021197931 A1 US2021197931 A1 US 2021197931A1
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- Prior art keywords
- antenna
- watercraft
- display device
- meter display
- watercraft body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/10—Power-driven personal watercraft, e.g. water scooters; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
- B63B19/12—Hatches; Hatchways
- B63B19/14—Hatch covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2201/00—Signalling devices
- B63B2201/20—Antenna or mast
Definitions
- the present disclosure relates to a personal watercraft configured to plane on water by jetting water rearward from a water jet pump.
- PWCs Personal watercrafts
- a water inlet port provided in a bottom surface of the body of the watercraft
- a water jet pump driven by the engine of the watercraft, and the water is jetted rearward to propel the body of the watercraft.
- Personal watercrafts may be required to have multiple functions for improving the user-friendliness and other properties. For example, it is conceivable to provide external communication function to a personal watercraft. In this case, depending on the type of the function, careful consideration needs to be given to avoid poor sensitivity of an antenna mounted for communication.
- An object of the present disclosure is to ensure good sensitivity of an antenna mounted on a personal watercraft.
- a personal watercraft includes: a watercraft body made of a resin; a handle projecting upward from the watercraft body; a meter display device disposed above the watercraft body and forward of the handle; a meter cover made of a resin and covering a space from above, the space being adjacent to and forward of the meter display device and being in contact with an upper surface of the watercraft body and a forward surface of the meter display device; and an antenna disposed in the space.
- the antenna is disposed in that front portion of the watercraft body which includes few components acting as obstacles to the antenna, and the meter cover disposed above the antenna and the watercraft body's front portion disposed forward of the antenna are each made of a resin. As such, good sensitivity of the antenna can be ensured.
- FIG. 1 is a partially cutaway side view of a personal watercraft according to an embodiment.
- FIG. 2 is a right front perspective view of a front portion of the personal watercraft shown in FIG. 1 .
- FIG. 3 is a longitudinal cross-sectional side view of the personal watercraft's front portion shown in FIG. 2 .
- FIG. 4 is a plan view of the personal watercraft's front portion shown in FIG. 2 , with a meter cover removed.
- FIG. 1 is a partially cutaway side view of a personal watercraft 1 according to the embodiment.
- FIG. 2 is a right front perspective view of the personal watercraft 1 shown in FIG. 1 .
- the personal watercraft 1 includes a watercraft body 2 made of a resin which is electrically non-conductive.
- the watercraft body 2 includes a hull 21 and a deck 22 covering the top of the hull 21 .
- the deck 22 is provided with a seat 3 on which the rider sits in a straddling position.
- the interior of the watercraft body 2 includes an engine accommodation space S 1 and a front accommodation space S 2 disposed forward of the engine accommodation space S 1 .
- the engine accommodation space S 1 accommodates an engine E as a prime mover.
- the front accommodation space S 2 can accommodate, for example, the user's possessions.
- the engine E includes an output shaft Ea, which extends toward the rear of the watercraft body 2 .
- the output end of the output shaft Ea is connected to a propeller shaft 5 via a coupling member 4 .
- a water jet pump P is disposed in a rear portion of the hull 21 , and the water jet pump P is located at the center of the hull 21 in the leftward/rightward direction.
- the water jet pump P includes a pump shaft Pa, to which the propeller shaft 5 is connected.
- the pump shaft Pa rotates in conjunction with the rotation of the output shaft Ea.
- An impeller 6 is mounted on the pump shaft Pa, and a stator vane 7 is disposed rearward of the impeller 6 .
- a pump casing 8 of tubular shape is provided around the outer periphery of the impeller 6 so as to enclose the impeller 6 .
- a water inlet port 21 a opens at the bottom of the watercraft body 2 .
- the water inlet port 21 a is in communication with the pump casing 8 through a water inlet passage 21 b .
- a pump nozzle 9 is provided in the rear portion of the watercraft body 2 and connected to the pump casing 8 .
- the diameter of the pump nozzle 9 decreases from front to rear, and a jet orifice opens at the rear end of the pump nozzle 9 .
- a steering nozzle 10 is connected to the jet orifice of the pump nozzle 9 , and the steering nozzle 10 is swingable to the left and right.
- the personal watercraft 1 In the personal watercraft 1 , water drawn through the water inlet port 21 a provided in the bottom of the hull 21 is pressurized and accelerated by rotational power of the impeller 6 of the water jet pump P driven by the engine E. The stream of water is conditioned by the stator vane 7 and vigorously discharged rearward through the jet orifice of the pump nozzle 9 and the steering nozzle 10 . Thus, the personal watercraft 1 is propelled by a reaction force from the water jetted out from the water jet pump P through the steering nozzle 10 .
- a steering handle 11 to be held by the rider is disposed forward of the seat 3 .
- the handle 11 projects upward from the watercraft body 2 .
- the handle 11 is connected to the steering nozzle 10 by a steering cable (not illustrated).
- the steering nozzle 10 swings to the left or right in conjunction with the tilt of the handle 1 .
- a reverse bucket 12 for backward movement of the watercraft is disposed in the vicinity of the steering nozzle 10 , and the reverse bucket 12 is swingable upward and downward.
- the front portion of the deck 22 is provided with a main opening H 1 through which the front accommodation space S 2 formed within the watercraft body 2 is open upward.
- the deck 22 is provided with a meter display device 13 located rearward of the main opening H 1 and forward of the handle 11 .
- the meter display device 13 is covered from above by the meter cover 14 .
- a hatch cover 15 which closes the main opening H 1 from above is disposed forward of the meter cover 14 , and the hatch cover 15 can be freely opened and closed.
- the meter cover 14 and the hatch cover 15 are each made of a resin which is electrically non-conductive.
- the deck 22 is provided with a pair of side mirrors 18 projecting outward in the leftward/rightward direction.
- FIG. 3 is a longitudinal cross-sectional side view of the personal watercraft 1 's front portion shown in FIG. 2 .
- FIG. 4 is a plan view of the personal watercraft 1 's front portion shown in FIG. 2 , with the meter cover 14 removed.
- the deck 22 of the watercraft body 2 includes an apex portion 22 a , a front inclined surface 22 b , and a rear inclined surface 22 c .
- the apex portion 22 a is the highest portion of the watercraft body 2 and is located forward of the handle 11 .
- the front inclined surface 22 b is adjacent to the apex portion 22 a and extends forward and downward from the apex portion 22 a .
- the rear inclined surface 22 c is adjacent to the apex portion 22 a and extends rearward and downward from the apex portion 22 a .
- the main opening H 1 through which the front accommodation space S 2 inside the watercraft body 2 is open upward, is formed in the front inclined surface 22 b of the deck 22 .
- the main opening H 1 as viewed in plan is substantially rectangular and is longer in the forward/rearward direction than in the leftward/rightward direction.
- the hatch cover 15 is constituted by an inner panel 31 facing the main opening H 1 of the front portion of the deck 22 and an outer panel 32 placed over the inner panel 31 in such a manner that an internal space is formed between the inner panel 31 and the outer panel 32 , the inner and outer panels 31 and 32 being assembled together.
- the inner panel 31 of the hatch cover 15 is provided with a first sealing member 17 configured to seal a gap between a peripheral portion of the main opening H 1 and the hatch cover 15 when the hatch cover 15 is in a closed state where the hatch cover 15 closes the opening.
- the hatch cover 15 is coupled to the deck 22 by a hinge device 16 so as to be movable to open and close the main opening H 1 .
- the hinge device 16 allows the hatch cover 15 to be opened in such a manner that the rear of the hatch cover 15 is moved obliquely upward and forward.
- the front inclined surface 22 b of the deck 22 is further provided with a pair of auxiliary openings H 2 .
- the paired auxiliary openings H 2 are disposed between the main opening H 1 and the apex portion 22 a and are arranged in the leftward/rightward direction.
- Each of the auxiliary openings H 2 is smaller than the main opening H 1 and is circular in plan view.
- Intake ducts 19 are fitted into the paired auxiliary openings H 2 , respectively.
- the paired intake ducts 19 are made of a resin which is electrically non-conductive.
- the paired intake ducts 19 are inserted in the paired auxiliary openings H 2 , respectively.
- Each of the intake ducts 19 includes an inlet portion 19 a projecting upward from the front inclined surface 22 b and a guide portion 19 b projecting downward from the front inclined surface 22 b and connected to the air-intake port of the engine E (see FIG. 1 ) in the engine accommodation space S 1 .
- the meter display device 13 is supported by the rear inclined surface 22 c .
- the meter display device 13 is disposed above the watercraft body 2 and is located at a higher level than the apex portion 22 a .
- the meter display device 13 is disposed to extend obliquely upward and forward.
- a space S 3 is adjacent to and forward of the meter display device 13 , and the meter cover 14 covers the meter display device 13 and the adjacent space S 3 from above.
- the adjacent space S 3 is defined by the front inclined surface 22 b of the deck 22 , the forward surface of the meter display device 13 , and the inner surface of the meter cover 14 .
- the inlet portions 19 a of the pair of intake ducts 19 are disposed in the adjacent space S 3 .
- An antenna device 20 is disposed in the space S 3 adjacent to and forward of the meter display device 13 .
- the antenna device 20 is used for reception by a communication device (e.g., a radio) mounted on the personal watercraft 1 .
- the antenna device 20 includes an antenna 41 which is substantially rod-shaped and an antenna support base 42 supporting the antenna 41 .
- the deck 22 includes a handle connection portion 22 d to which the handle 11 is connected, and the handle connection portion 22 d is provided in the rear inclined surface 22 c .
- the deck 22 includes an antenna mounting portion 22 e on which the antenna device 20 is mounted, and the antenna mounting portion 22 e is provided in the front inclined surface 22 b.
- the antenna 41 is supported by the front inclined surface 22 b of the deck 22 .
- the antenna mounting portion 22 e is located at a higher level than the handle connection portion 22 d .
- the antenna support base 42 is fixed to the antenna mounting portion 22 e , and the antenna 41 projects upward from the antenna support base 42 . That is, the antenna 41 as viewed from the antenna mounting portion 22 e projects upward.
- the antenna 41 projects obliquely upward and forward.
- the antenna 41 extends along the direction in which the meter display device 13 extends.
- the antenna 41 is supported by a portion of the front inclined surface 22 b of the deck 22 , the portion being closer to the apex portion 22 a than is the center of the auxiliary opening H 2 .
- the upper end of the antenna 41 as viewed in plan is located forward of the meter display device 13 .
- the rear portion of the antenna support base 42 as viewed in plan is covered by the meter display device 13 .
- the antenna device 20 is disposed between the inlet portions 19 a of the pair of intake ducts 19 in the leftward/rightward direction.
- the antenna device 20 is located at the center of the watercraft body 2 in the leftward/rightward direction.
- At or above the level of the upper end of the antenna 41 only the meter cover 14 and hatch cover 15 lie ahead of the antenna 41 ; that is, there is not any electrically conductive member (e.g., a metal member) located forward of the antenna 41 and at or above the level of the upper end of the antenna 41 .
- the components located forward of the antenna 41 and at or above the level of the lower end of the antenna 41 are only the meter cover 14 and the hatch cover 15 .
- the antenna 41 is disposed in the front portion of the watercraft body 2 which includes few components acting as obstacles to the antenna 41 , and the meter cover 14 disposed above the antenna 41 , the hatch cover 15 disposed forward of the antenna 41 , and the deck 22 's front portion disposed forward of the antenna 41 are each made of a resin. As such, good sensitivity of the antenna 41 can be ensured.
- the antenna mounting portion 22 e is located at a higher level than the handle connection portion 22 d , and the antenna 41 projects upward from the antenna mounting portion 22 e . As such, the antenna 41 is located at a high level relative to the watercraft body 2 , and thus good receiving sensitivity can be ensured.
- the antenna 41 projects obliquely upward and forward when the personal watercraft 1 is at rest. As such, when the personal watercraft 1 is moving with the watercraft body 2 tilted backward, the direction of the antenna 41 is close to the vertical direction. Thus, high receiving sensitivity of the antenna 41 can be ensured during the movement of the personal watercraft 1 .
- the meter display device 13 is supported by the rear inclined surface 22 c of the deck 22
- the antenna 41 is supported by the front inclined surface 22 b of the deck 22 .
- the meter display device 13 and the antenna 41 can be arranged in a suitable manner such that the meter display device 13 and the antenna 41 do not interfere with each other.
- the main opening H 1 and auxiliary openings H 2 are provided in the front inclined surface 22 b of the deck 22 , and the front inclined surface 22 b has only a small area available for mounting of the antenna 41 .
- the antenna 41 is disposed close to the apex portion 22 a of the deck 22 and hence to the meter display device 13 . Nevertheless, since the upper end of the antenna 41 as viewed in plan is located forward of the meter display device 13 , good sensitivity of the antenna 41 can be ensured without interference of the meter display device 13 .
- the antenna 41 is disposed between the inlet portions 19 a of the pair of intake ducts 19 in the leftward/rightward direction; that is, the antenna 41 is surrounded on both sides by the inlet portions 19 a of the intake ducts 19 made of a resin. As such, the antenna 41 can be protected while ensuring good sensitivity of the antenna 41 .
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Support Of Aerials (AREA)
Abstract
Description
- The present disclosure relates to a personal watercraft configured to plane on water by jetting water rearward from a water jet pump.
- Personal watercrafts (PWCs) are widely used for leisure, sports, and rescue activities. In a common personal watercraft, water drawn through a water inlet port provided in a bottom surface of the body of the watercraft is pressurized and accelerated by a water jet pump driven by the engine of the watercraft, and the water is jetted rearward to propel the body of the watercraft.
- Personal watercrafts may be required to have multiple functions for improving the user-friendliness and other properties. For example, it is conceivable to provide external communication function to a personal watercraft. In this case, depending on the type of the function, careful consideration needs to be given to avoid poor sensitivity of an antenna mounted for communication.
- An object of the present disclosure is to ensure good sensitivity of an antenna mounted on a personal watercraft.
- A personal watercraft according to one aspect of the present disclosure includes: a watercraft body made of a resin; a handle projecting upward from the watercraft body; a meter display device disposed above the watercraft body and forward of the handle; a meter cover made of a resin and covering a space from above, the space being adjacent to and forward of the meter display device and being in contact with an upper surface of the watercraft body and a forward surface of the meter display device; and an antenna disposed in the space.
- In the above configuration, the antenna is disposed in that front portion of the watercraft body which includes few components acting as obstacles to the antenna, and the meter cover disposed above the antenna and the watercraft body's front portion disposed forward of the antenna are each made of a resin. As such, good sensitivity of the antenna can be ensured.
- The above and further objects, features and advantages of the present disclosure will be more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.
-
FIG. 1 is a partially cutaway side view of a personal watercraft according to an embodiment. -
FIG. 2 is a right front perspective view of a front portion of the personal watercraft shown inFIG. 1 . -
FIG. 3 is a longitudinal cross-sectional side view of the personal watercraft's front portion shown inFIG. 2 . -
FIG. 4 is a plan view of the personal watercraft's front portion shown inFIG. 2 , with a meter cover removed. - Hereinafter, an embodiment will be described with reference to the drawings.
-
FIG. 1 is a partially cutaway side view of apersonal watercraft 1 according to the embodiment.FIG. 2 is a right front perspective view of thepersonal watercraft 1 shown inFIG. 1 . As shown inFIGS. 1 and 2 , thepersonal watercraft 1 includes awatercraft body 2 made of a resin which is electrically non-conductive. Thewatercraft body 2 includes ahull 21 and adeck 22 covering the top of thehull 21. Thedeck 22 is provided with aseat 3 on which the rider sits in a straddling position. The interior of thewatercraft body 2 includes an engine accommodation space S1 and a front accommodation space S2 disposed forward of the engine accommodation space S1. The engine accommodation space S1 accommodates an engine E as a prime mover. The front accommodation space S2 can accommodate, for example, the user's possessions. - The engine E includes an output shaft Ea, which extends toward the rear of the
watercraft body 2. The output end of the output shaft Ea is connected to apropeller shaft 5 via acoupling member 4. A water jet pump P is disposed in a rear portion of thehull 21, and the water jet pump P is located at the center of thehull 21 in the leftward/rightward direction. The water jet pump P includes a pump shaft Pa, to which thepropeller shaft 5 is connected. Thus, the pump shaft Pa rotates in conjunction with the rotation of the output shaft Ea. Animpeller 6 is mounted on the pump shaft Pa, and astator vane 7 is disposed rearward of theimpeller 6. Apump casing 8 of tubular shape is provided around the outer periphery of theimpeller 6 so as to enclose theimpeller 6. - A
water inlet port 21 a opens at the bottom of thewatercraft body 2. Thewater inlet port 21 a is in communication with thepump casing 8 through awater inlet passage 21 b. Apump nozzle 9 is provided in the rear portion of thewatercraft body 2 and connected to thepump casing 8. The diameter of thepump nozzle 9 decreases from front to rear, and a jet orifice opens at the rear end of thepump nozzle 9. Asteering nozzle 10 is connected to the jet orifice of thepump nozzle 9, and thesteering nozzle 10 is swingable to the left and right. - In the
personal watercraft 1, water drawn through thewater inlet port 21 a provided in the bottom of thehull 21 is pressurized and accelerated by rotational power of theimpeller 6 of the water jet pump P driven by the engine E. The stream of water is conditioned by thestator vane 7 and vigorously discharged rearward through the jet orifice of thepump nozzle 9 and thesteering nozzle 10. Thus, thepersonal watercraft 1 is propelled by a reaction force from the water jetted out from the water jet pump P through thesteering nozzle 10. - A
steering handle 11 to be held by the rider is disposed forward of theseat 3. Thehandle 11 projects upward from thewatercraft body 2. Thehandle 11 is connected to thesteering nozzle 10 by a steering cable (not illustrated). When thehandle 11 is tilted to the left or right, thesteering nozzle 10 swings to the left or right in conjunction with the tilt of thehandle 1. Areverse bucket 12 for backward movement of the watercraft is disposed in the vicinity of thesteering nozzle 10, and thereverse bucket 12 is swingable upward and downward. - The front portion of the
deck 22 is provided with a main opening H1 through which the front accommodation space S2 formed within thewatercraft body 2 is open upward. Thedeck 22 is provided with ameter display device 13 located rearward of the main opening H1 and forward of thehandle 11. Themeter display device 13 is covered from above by themeter cover 14. Ahatch cover 15 which closes the main opening H1 from above is disposed forward of themeter cover 14, and thehatch cover 15 can be freely opened and closed. Themeter cover 14 and thehatch cover 15 are each made of a resin which is electrically non-conductive. Thedeck 22 is provided with a pair ofside mirrors 18 projecting outward in the leftward/rightward direction. -
FIG. 3 is a longitudinal cross-sectional side view of thepersonal watercraft 1's front portion shown inFIG. 2 .FIG. 4 is a plan view of thepersonal watercraft 1's front portion shown inFIG. 2 , with themeter cover 14 removed. As shown inFIGS. 3 and 4 , thedeck 22 of thewatercraft body 2 includes anapex portion 22 a, a frontinclined surface 22 b, and a rearinclined surface 22 c. Theapex portion 22 a is the highest portion of thewatercraft body 2 and is located forward of thehandle 11. The frontinclined surface 22 b is adjacent to theapex portion 22 a and extends forward and downward from theapex portion 22 a. The rearinclined surface 22 c is adjacent to theapex portion 22 a and extends rearward and downward from theapex portion 22 a. The main opening H1, through which the front accommodation space S2 inside thewatercraft body 2 is open upward, is formed in the frontinclined surface 22 b of thedeck 22. The main opening H1 as viewed in plan is substantially rectangular and is longer in the forward/rearward direction than in the leftward/rightward direction. - The
hatch cover 15 is constituted by aninner panel 31 facing the main opening H1 of the front portion of thedeck 22 and anouter panel 32 placed over theinner panel 31 in such a manner that an internal space is formed between theinner panel 31 and theouter panel 32, the inner andouter panels inner panel 31 of thehatch cover 15 is provided with a first sealingmember 17 configured to seal a gap between a peripheral portion of the main opening H1 and thehatch cover 15 when thehatch cover 15 is in a closed state where thehatch cover 15 closes the opening. Thehatch cover 15 is coupled to thedeck 22 by ahinge device 16 so as to be movable to open and close the main opening H1. Thehinge device 16 allows thehatch cover 15 to be opened in such a manner that the rear of thehatch cover 15 is moved obliquely upward and forward. - The front
inclined surface 22 b of thedeck 22 is further provided with a pair of auxiliary openings H2. The paired auxiliary openings H2 are disposed between the main opening H1 and theapex portion 22 a and are arranged in the leftward/rightward direction. Each of the auxiliary openings H2 is smaller than the main opening H1 and is circular in plan view.Intake ducts 19 are fitted into the paired auxiliary openings H2, respectively. The pairedintake ducts 19 are made of a resin which is electrically non-conductive. The pairedintake ducts 19 are inserted in the paired auxiliary openings H2, respectively. Each of theintake ducts 19 includes aninlet portion 19 a projecting upward from the frontinclined surface 22 b and aguide portion 19 b projecting downward from the frontinclined surface 22 b and connected to the air-intake port of the engine E (seeFIG. 1 ) in the engine accommodation space S1. - The
meter display device 13 is supported by the rearinclined surface 22 c. Themeter display device 13 is disposed above thewatercraft body 2 and is located at a higher level than theapex portion 22 a. Themeter display device 13 is disposed to extend obliquely upward and forward. A space S3 is adjacent to and forward of themeter display device 13, and themeter cover 14 covers themeter display device 13 and the adjacent space S3 from above. The adjacent space S3 is defined by the frontinclined surface 22 b of thedeck 22, the forward surface of themeter display device 13, and the inner surface of themeter cover 14. Theinlet portions 19 a of the pair ofintake ducts 19 are disposed in the adjacent space S3. - An
antenna device 20 is disposed in the space S3 adjacent to and forward of themeter display device 13. Theantenna device 20 is used for reception by a communication device (e.g., a radio) mounted on thepersonal watercraft 1. Theantenna device 20 includes anantenna 41 which is substantially rod-shaped and anantenna support base 42 supporting theantenna 41. Thedeck 22 includes ahandle connection portion 22 d to which thehandle 11 is connected, and thehandle connection portion 22 d is provided in the rearinclined surface 22 c. Thedeck 22 includes anantenna mounting portion 22 e on which theantenna device 20 is mounted, and theantenna mounting portion 22 e is provided in the frontinclined surface 22 b. - The
antenna 41 is supported by the frontinclined surface 22 b of thedeck 22. Theantenna mounting portion 22 e is located at a higher level than thehandle connection portion 22 d. Theantenna support base 42 is fixed to theantenna mounting portion 22 e, and theantenna 41 projects upward from theantenna support base 42. That is, theantenna 41 as viewed from theantenna mounting portion 22 e projects upward. - When the
personal watercraft 1 is at rest, theantenna 41 projects obliquely upward and forward. Theantenna 41 extends along the direction in which themeter display device 13 extends. Theantenna 41 is supported by a portion of the frontinclined surface 22 b of thedeck 22, the portion being closer to theapex portion 22 a than is the center of the auxiliary opening H2. The upper end of theantenna 41 as viewed in plan is located forward of themeter display device 13. The rear portion of theantenna support base 42 as viewed in plan is covered by themeter display device 13. - The
antenna device 20 is disposed between theinlet portions 19 a of the pair ofintake ducts 19 in the leftward/rightward direction. Theantenna device 20 is located at the center of thewatercraft body 2 in the leftward/rightward direction. At or above the level of the upper end of theantenna 41, only themeter cover 14 and hatch cover 15 lie ahead of theantenna 41; that is, there is not any electrically conductive member (e.g., a metal member) located forward of theantenna 41 and at or above the level of the upper end of theantenna 41. In the present embodiment, the components located forward of theantenna 41 and at or above the level of the lower end of theantenna 41 are only themeter cover 14 and thehatch cover 15. - In the configuration described above, the
antenna 41 is disposed in the front portion of thewatercraft body 2 which includes few components acting as obstacles to theantenna 41, and themeter cover 14 disposed above theantenna 41, thehatch cover 15 disposed forward of theantenna 41, and thedeck 22's front portion disposed forward of theantenna 41 are each made of a resin. As such, good sensitivity of theantenna 41 can be ensured. - Additionally, the
antenna mounting portion 22 e is located at a higher level than thehandle connection portion 22 d, and theantenna 41 projects upward from theantenna mounting portion 22 e. As such, theantenna 41 is located at a high level relative to thewatercraft body 2, and thus good receiving sensitivity can be ensured. - Additionally, the
antenna 41 projects obliquely upward and forward when thepersonal watercraft 1 is at rest. As such, when thepersonal watercraft 1 is moving with thewatercraft body 2 tilted backward, the direction of theantenna 41 is close to the vertical direction. Thus, high receiving sensitivity of theantenna 41 can be ensured during the movement of thepersonal watercraft 1. - Additionally, the
meter display device 13 is supported by the rearinclined surface 22 c of thedeck 22, and theantenna 41 is supported by the frontinclined surface 22 b of thedeck 22. As such, themeter display device 13 and theantenna 41 can be arranged in a suitable manner such that themeter display device 13 and theantenna 41 do not interfere with each other. - In the configuration described above, the main opening H1 and auxiliary openings H2 are provided in the front
inclined surface 22 b of thedeck 22, and the frontinclined surface 22 b has only a small area available for mounting of theantenna 41. In such a configuration, theantenna 41 is disposed close to theapex portion 22 a of thedeck 22 and hence to themeter display device 13. Nevertheless, since the upper end of theantenna 41 as viewed in plan is located forward of themeter display device 13, good sensitivity of theantenna 41 can be ensured without interference of themeter display device 13. - Additionally, the
antenna 41 is disposed between theinlet portions 19 a of the pair ofintake ducts 19 in the leftward/rightward direction; that is, theantenna 41 is surrounded on both sides by theinlet portions 19 a of theintake ducts 19 made of a resin. As such, theantenna 41 can be protected while ensuring good sensitivity of theantenna 41. - Many modifications and other embodiments of the present invention will be apparent to those skilled in the art from the foregoing description. Accordingly, the foregoing description is to be construed as illustrative only, and is provided for the purpose of teaching those skilled in the art the best mode for carrying out the invention. The details of the structure and/or function may be varied substantially without departing from the scope of the invention.
Claims (9)
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US16/730,144 US11027797B1 (en) | 2019-12-30 | 2019-12-30 | Personal watercraft |
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US16/730,144 US11027797B1 (en) | 2019-12-30 | 2019-12-30 | Personal watercraft |
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US11990045B2 (en) | 2021-07-09 | 2024-05-21 | Kawasaki Motors, Ltd. | Periphery recognition support system and method for personal watercraft |
US11611651B2 (en) | 2021-07-09 | 2023-03-21 | Kawasaki Motors, Ltd. | Calling system and method for personal watercraft |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1143093A (en) * | 1997-07-30 | 1999-02-16 | Yamaha Motor Co Ltd | Small size boat with gps |
US5894810A (en) * | 1998-04-22 | 1999-04-20 | Orr; John D. | Personal watercraft having a hood assembly with a base piece for mounting a stereo system |
JP2002145182A (en) * | 2000-11-07 | 2002-05-22 | Yamaha Motor Co Ltd | Cover structure of baggage compartment part for surface vehicle |
JP2002145181A (en) * | 2000-11-07 | 2002-05-22 | Yamaha Motor Co Ltd | Container structure for surface vehicle |
JP4301869B2 (en) * | 2003-06-06 | 2009-07-22 | ヤマハ発動機株式会社 | Small planing boat |
JP2005269472A (en) * | 2004-03-22 | 2005-09-29 | Yamaha Marine Co Ltd | Control device of small ship |
JP2007261545A (en) | 2006-03-30 | 2007-10-11 | Yamaha Marine Co Ltd | Small planing boat |
US8751158B2 (en) * | 2008-11-26 | 2014-06-10 | Kawasaki Jukogyo Kabushiki Kaisha | Personal watercraft |
JP2013086668A (en) * | 2011-10-19 | 2013-05-13 | Yamaha Motor Co Ltd | Watercraft |
US10611438B1 (en) * | 2018-09-14 | 2020-04-07 | Kawasaki Jukogyo Kabushiki Kaisha | Personal watercraft |
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2019
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