JPH023596A - Sailing position annunciating device for compact cruising boat - Google Patents

Abstract

PURPOSE:To improve the visibility by having electric lamps flashed such that the flash cycle time becomes shorter as the engine speed becomes higher. CONSTITUTION:An electric lamp 11 is disposed at the front center 10a of the hull 10 of a compact racing motorboat and electric lamps 12, 13 on the right and left of the back part 10b. The electric lamps 11, 12, 13 are connected through a charge coil 29, a diode 39 and a dividing circuit 40. This charge coil 29 is connected to a primary coil 32, a secondary coil 33 and a plug 27. In this structure, the alternating current of the frequency proportioned to the engine speed is generated in the charge coil 29, fed to the electric lamps 11-13 through the diode 39 and the dividing circuit 40, and the electric lamps are flashed. As a result, the flash cycle time becomes shorter as the engine speed becomes higher so as to improve the visibility of the spectators.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a notification device for notifying spectators of the location of a small personal watercraft.

(Prior Art) A small personal watercraft whose water injection unit is driven by an engine is used for speed competitions near the coast. When watching a speed competition, it is necessary to be able to clearly see the racing boats. It is also necessary for athletes to be able to clearly see other layers. However, although medium and large vessels are generally equipped with navigation lights for night navigation, small personal watercraft are often operated during the day and are rarely equipped with navigation lights.

Even if they were, they were only equipped with electric lights that were always on or revolving lights that rotated at a certain number of revolutions.

(Problems to be Solved by the Invention) Conventional small personal watercraft have had the problem of poor visibility from the outside.

(Means for solving the problem) In a navigational position notification device for a small personal watercraft that has an electric light placed on the hull, the electric light blinks, and the higher the engine rotation speed, the shorter the blinking cycle time. I decided to do so.

(Function) The electric lights placed on the hull not only blink, but the higher the engine speed, the shorter the blinking cycle.

(Example) The present invention will be explained below based on embodiments shown in the drawings.

FIG. 1 is a top view of a small watercraft equipped with the notification device of the present invention, and FIG. 2 is a front view. FIG. 3 is a wiring diagram of the notification device.

An electric light 11 is provided at the front center 10a of the hull 10 of the small personal watercraft.
Electric lights 12 and 13 are provided on the left and right sides of the rear portion 10b. In FIGS. 1 and 2, 14 is a steering handle, 15 is a seat, 16 is a step formed on the hull 10, 17 is a hatch at the top of the engine, and 18a and 18b are a pair of bank mirrors.

A flywheel cover 20 is disposed at the front of the engine 19, and covers a flywheel magneto (not shown) in a watertight manner. Water injection unit 21 is located behind the engine 19.
An impeller 22 sucks water from the bottom of the ship and injects it rearward in proportion to the rotational speed of the engine 19.

Note that 23 is a coupling that connects the engine 19 and the water injection unit 21. Reference numeral 24 represents a battery, and 25 represents an electrical equipment box, which accommodates circuit components to be described later. A high tension cord 26 is wired from the electrical box 25 to the plug 27.
Lighting current lines 28 are wired to the electric lights 11, 12, and 13.

In addition, what is illustrated as 60 in FIG. 1 is a bowline storage device.

FIG. 4 is its circuit diagram. However, the charging circuit for the battery 24 and the power supply circuit for the starting electric motor (not shown) of the engine 19 are omitted. FIG. 5 is a waveform diagram regarding the power supply current of the notification device.

An alternating current is generated in the charge coil 29 and the pulser coil 30 by a magnet that rotates together with a crankshaft (not shown). A portion of the current from the charge coil 29 is supplied to the coil 32 , the secondary coil 33 , and further to the plug 27 via the ignition control circuit 31 .

Note that 35 is a diode, 36 is a capacitor, and 37 is a cyrisk. 38 is a shaping circuit that shapes the waveform of the pulsar current excited by the pulsar coil 30 at a timing corresponding to the crank angle.

A portion of the current from the charge coil 29 is passed through the diode 39.
, are supplied to the lamps 11, 12, 13 via the frequency dividing circuit 40. Then, the current in the charge coil 29 is the fifth
As shown in A in the figure, the alternating current has a frequency proportional to the engine speed. When this current passes through the diode 39, it becomes a half-wave current as shown in B in FIG. 5, and when it passes through the frequency divider circuit 40, the current becomes O for a specified wave number as shown in C in FIG.

Note that the frequency dividing circuit 40 is set so that the current waveform is outputted once every three cycles of the input current. However, this occurs at a rate of once per IO cycle of the input current, 1
The ratio may be set arbitrarily, such as 3 times per 0 cycle.

In the embodiments described above, the visibility of the small personal watercraft is improved compared to one that is simply equipped with electric lights. Therefore, for example, when the race boat is used in a speed competition, spectators can see the race boat clearly and enjoy the race boat to the fullest. In addition, the advantage for the competitors is that they can clearly see other magnets.

Furthermore, the electric lights placed on the hull do not just blink, but the higher the engine speed, the shorter the flashing cycle. The need for visibility from the outside is satisfied.

Furthermore, since the acceleration state or deceleration state can be known from changes in the blinking cycle, the interest of spectators can be increased.

FIG. 6 is a detailed view of the rearview mirrors 18a, 18b shown in FIG. 1. Since the support column 50 is formed of a coil spring 51, when it collides with a foreign object, the coil spring 51 deforms as shown by the imaginary line to alleviate the impact force. Note that 52 is a mounting bolt and 53 is a nut.

FIG. 7 is a detailed view of another example of a rearview mirror.

In this example, a part of the pillar 56 of the rearview mirror 55 is made into a coil spring portion 57.

FIG. 8 is a longitudinal cross-sectional view of the bowline storage device, FIG. 9 is a cross-sectional view taken along line D (-1) of FIG. 8, and FIG. 10 is a longitudinal cross-sectional view of the main part.

The bowline storage device 60 mainly includes a casing 61, a plate 62 that engages with a vertical groove 61a formed in the casing 61, and a drum 63 placed on a stepped portion 61b formed in the casing 61. , consisting of a bowline 64 wound around a drum 63 and attached to the hull lO by a port 65.

The plate 62 and the drum 63 are provided with ratchet teeth 62a and 6 that can be engaged with each other by the elastic force of the spring 66.
3a are formed respectively. plate 62 and drum 6
3 are press-fitted with pins 67 and 68, respectively.
A mainspring spring 69 is arranged between the pins 68.

When the bell rope 64 is pulled for mooring the hull 10, the drum 63 rotates with the ratchet teeth 63a passing over the ratchet teeth 62a. At this time, flexural elastic energy is stored in the mainspring spring 69.

When the rod portion 62b formed on the plate 62 and protruding from the hull 10 is pushed in against the elastic force of the spring 66, the ratchet teeth 62a and 63a are disengaged and the drum 63 is stored in the mainspring spring 69. The elastic energy rotates around the rod portion 62b and is rewound.

Note that a stopper 61b 70 for regulating the amount of rewinding is a discharge hole for discharging water entering the casing 61.

(Effect of the invention) The visibility of small personal watercraft is improved compared to those simply equipped with electric lights. Therefore, for example, when the race boat is used in a speed competition, spectators can see the race boat clearly and enjoy the race boat to the fullest. In addition, the advantage for the competitors is that they can clearly see other layers.

[Brief explanation of the drawing]

FIG. 1 is a top view of a small watercraft equipped with the notification device of the present invention, and FIG. 2 is a front view. FIG. 3 is a wiring diagram of the notification device. FIG. 4 is a circuit diagram of the notification device, and FIG. 5 is a waveform diagram regarding the power supply current of the notification device. FIG. 6 is a detailed view of the rearview mirrors 18a, 18b shown in FIG. 1. FIG. 7 is a detailed view of another example of a rearview mirror. FIG. 8 is a longitudinal cross-sectional view of the bowline storage device, FIG. 9 is a cross-sectional view of the bowline storage device along line IX-IX in FIG. 8,
FIG. 10 is a longitudinal cross-sectional view of the main part of the bowline storage device. Hull... Center of the front of the hull/Aft part of the hull... Electric lights... 0a 0b Engine... Current line for lighting the water injection unit/Charge coil diode... Frequency dividing circuit...

Claims (1)

[Claims] A navigational position informing device for a small personal watercraft having an electric light disposed on the hull, characterized in that the electric light blinks and the flashing cycle time is shortened as the engine speed increases. Navigation position reporting device for planing boats.