JP3305522B2 - Operation device for jet propulsion boat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating device for adjusting the hull trim angle of a jet propulsion boat for generating propulsion by injecting water sucked from the bottom of a ship to the rear of a stern, and for starting and stopping an engine.

[0002]

2. Description of the Related Art In recent years, there is a small boat equipped with a jet propulsion device that generates propulsion by injecting water sucked from the bottom of a ship by an engine power from an injection port at a stern. In this jet propulsion boat, the trim angle of the hull is adjusted to increase the speed of the boat, or the trim adjustment mechanism and the switch for starting and stopping the engine, which ensure stability during cruising, or a switch for safety in case of falling water An operation device including a switch mechanism such as a lanyard switch for ensuring the operation is provided.

[0003] As such an operating device, there has been proposed an operating device in which various mechanisms are centrally arranged around a grip so as to be easily operated while grasping a steering wheel in order to improve operability. For example, FIG. 7 shows a conventional operating device, which connects a driving pulley 52 to a grip 51 rotatably mounted on the left end of a steering handle 50, and connects an operating cable 53 to the pulley 52, and The extension end of the cable 53 is connected to an injection port of a jet propulsion unit (not shown). The pulley 52 is housed in a housing 54 fixed to a handle 50. A switch box 55 is mounted on the steering handle 50. The box 55 is provided with a stop switch 56, a lanyard switch 57, and a start switch (not shown) of the engine.

[0004]

However, in the above-mentioned conventional operating device, the housing 54 of the trim adjustment mechanism and the switch box 55 are separately formed. There has been a problem that the switches are moved away from the handle grip 51 in the axial direction by an amount corresponding to the wall thickness and the interval, thereby impairing the switch operability when the grip 51 is gripped. In addition, since it is a separate part, there is also a problem that the cost increases as the number of parts increases. Further, the size of the housing 54 and the switch box 55 is
Since the shapes are different, there is a problem that the design is not uniform and the appearance is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and can improve the operability of switches, can reduce the number of parts and cost, and can improve the appearance. The purpose of the present invention is to provide an operating device.

[0006]

According to the present invention, a switch for operating a start / stop of an engine is provided by providing a grip for a trim angle adjusting mechanism for operating the jetting direction of a jet propulsion device provided at the stern at one end of a steering handle. In the operating device for a jet propulsion boat provided adjacent to the grip, an operating cable driving pulley formed on the trim adjusting mechanism grip is housed in the switch case.

[0007]

According to the operation device for a jet propulsion watercraft according to the present invention, the drive pulley of the grip for the trim adjustment mechanism is housed in the case of the switch mechanism. , No intervals are required, and the switches can be brought closer to the grip, thereby improving the operability of the switches. In addition, the need for the grip housing is eliminated, so that the number of parts can be reduced and the cost can be reduced. Further, the size and shape of the case can be unified and the appearance can be improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 6 are views for explaining an operating device of a jet propulsion boat according to an embodiment of the present invention, and FIGS. 1 and 2 are plan views each showing a grip portion of a steering handle of the device of the present embodiment. FIG. 3 is a front view of the grip portion viewed from the driver's seat, FIG. 4 is a schematic configuration diagram showing a trim adjusting mechanism of the jet propulsion boat, FIG. 5 is a plan view of the jet propulsion boat, and FIG. FIG. 3 is a diagram illustrating a main part of the mechanism.

In FIG. 1, reference numeral 1 denotes a jet propulsion boat employing the apparatus of this embodiment. In the propulsion boat 1, a hatch cover 5 is disposed at the front of a hull 4 so as to be openable and closable. A steering wheel 7 is disposed, and a seat 6 for seating an occupant is disposed behind the steering wheel 7.

At the rear of the hull 4, a jet propulsion device 10
Is installed. This jet propulsion device 10 is
A jet passage 11 extending from the rear part to the stern 4a, an impeller 12 is arranged in the middle of the jet passage 11, and an injection port 13 is arranged at the rear end so as to be swingable right and left and up and down. The impeller 12 is driven to rotate by an engine (not shown) mounted in the hull 4.

The jet propulsion device 10 rotates the impeller 12 by an engine to draw water from the inlet 11a of the jet passage 11, pressurizes the water, and jets the water from the injection port 13 to generate a propulsive force. It is configured to be.

The steering handle 7 has a structure in which a central support portion of a substantially T-shaped handle body 7a is rotatably supported on the hull 4 and the handle body 7a is surrounded by a handle cover 15. The handle main body 7a is connected to the injection port 13 via a turning mechanism (not shown).
3 swings left and right, whereby the direction of jetting water changes left and right, and the hull turns left and right.

A throttle lever 17 is disposed on the right end of the handle body 7a, and a trim angle adjusting grip 16 is rotatably mounted on the left end thereof with a bolt 16c so as not to come off. The left grip 16 has a structure in which a rubber gripping body 16b is fitted to a cylindrical grip body 16a.

A trim adjustment mechanism 18 is connected to the grip 16. The adjusting mechanism 18 adjusts the trim angle of the hull by swinging the injection port 13 of the jet propulsion device 10 obliquely upward or obliquely downward from a horizontal position. This trim adjustment mechanism 18
The drive pulley 19 integrally formed on the inner end of the grip body 16a and the intermediate pulley 24 of the converter 20 fixed to the hull are connected by a pair of operation cables (pull cables) 21, 21. In this structure, the intermediate pulley 24 and the jet port 13 of the jet propulsion device 11 are connected by an operation cable 22 (push-pull cable). The intermediate pulley 24 is rotatably supported by the fixed bracket 23.

As shown in FIGS. 4 and 6, when the left grip 16 is rotated clockwise in FIG. 6, the drive pulley 19 and the intermediate pulley 24 are rotated. 22 raises the injection port 13 obliquely upward, thereby increasing the hull trim angle. When the grip 16 is rotated counterclockwise, the operation cable 22 pushes down the injection port 13 obliquely downward, thereby reducing the hull trim angle.

The grip 16 has a trigger lever 25.
Are rotatably supported by a return spring (not shown) while being urged to a locking position shown by a solid line in FIG. The trigger lever 25 is engaged with one of three notches 30a formed by notching a switch box 30 to be described later, so that the grip 16 is in the neutral position (horizontal position) and the up position (upward). When the trigger lever 25 is rotated to the position shown by the two-dot chain line in FIG. 2 with the left index finger or the like, the engagement between the engagement portion 25a and the notch portion 30a is performed. When released, the grip 16 becomes rotatable, and when the finger is released, the grip 16 is locked in any of the above positions.

A switch box 30 is fixed to the base of the handle body 7a. The switch box 3
Reference numeral 0 abuts on the inner end face of the grip 16 and covers the drive pulley 19 of the trim adjustment mechanism 18, whereby the drive pulley 19 is housed in the switch box 30 of the switch mechanism.

The switch box 30 is provided with a start switch 32, a stop switch 33, and a lanyard switch 34 of the engine. The lanyard switch 34 has a clip 36 detachably fitted on a pin 35, and has a curl code 37 of the clip 36.
Is wound around the occupant's arm or the like, and when the occupant falls from the hull 4, the clip 36 comes off, whereby the pin 35 is pushed in and the engine is stopped.

Next, the operation and effect of this embodiment will be described. In the operating device of this embodiment, the engine start, stop, and
Acceleration, deceleration, and trim adjustment can be easily performed.
Drivability can be improved.

According to the apparatus of this embodiment, the drive pulley 19 of the trim adjustment mechanism 18 is housed by the switch box 30 for the switch mechanism, so that the switch box and the drive pulley housing are separately provided adjacent to each other. The thickness of the wall of the section and the space between the two members are not required, and the switches 32 and 33 can be brought closer to the grip 16 accordingly, and the operability of the switches is improved. In addition, the need for a housing for the driving pulley is eliminated, and the number of parts can be reduced and the cost can be reduced accordingly.

The size of the switch box 30,
The design can be made uniform in shape, the appearance can be improved, and the entire switch box 30 can be simplified and downsized.

[0022]

As described above, according to the operating device for a jet propulsion boat according to the present invention, the drive pulley of the trim adjustment mechanism is housed in the case for the switch mechanism, so that each switch can be brought closer to the grip side. Operability of the switch can be improved, a drive pulley housing is not required, the number of parts can be reduced, the cost can be reduced, and the degree of freedom in the shape of the case can be increased to improve the appearance. There is.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating an operating device of a jet propulsion boat according to an embodiment of the present invention.

FIG. 2 is a cross-sectional plan view of a grip portion of the embodiment device.

FIG. 3 is a front view of a grip portion as viewed from a driver's seat of the apparatus of the embodiment.

FIG. 4 is a schematic configuration diagram showing a trim adjustment mechanism of the embodiment device.

FIG. 5 is a plan view of a jet propulsion boat employing the above embodiment.

FIG. 6 is a diagram showing a main part of a trim adjustment mechanism of the embodiment device.

FIG. 7 is a front view showing a conventional operation device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Jet propulsion boat 4a Stern 7 Steering handle 10 Jet propulsion machine 13 Injection port 16 Grip 18 Trim adjustment mechanism 19 Drive pulley 21 Operation cable 30 Switch box (case) 32-34 Switch

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-175495 (JP, A) JP-A-6-270889 (JP, A) JP-A-4-271994 (JP, A) JP-A-6-271994 156379 (JP, A) JP-A 1-122396 (JP, U) JP 4-37096 (JP, U) JP-A 2-82697 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B63H 11/00-11/117 B63B 35/73

Claims (1)

(57) [Claims] 1. A trim angle adjusting mechanism grip for manipulating the jetting direction of a jet propulsion device provided at the stern is provided at one end of a steering handle, and a switch for operating start / stop of an engine is provided adjacent to the grip. An operating device for a jet propulsion boat according to the above, wherein an operation cable driving pulley formed on the trim adjustment mechanism grip is housed in the switch case.