JPH0222800Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a signal light that flashes and emits light using a battery as a power source, and particularly relates to a buoy signal light that is attached to a suitable buoyant body and floats on the sea or the like.

This type of buoy signal light is used as a navigational guide, a sign indicating the position of fishing nets, etc. Since it is attached to a suitable buoyant body and floated on the water surface, the buoy signal light moves up and down with the swells of the waves. When the amplitude of the swell increases to a certain extent, when the buoy signal light is lowered in the valley of the swell, it is hidden by the peak of the swell and cannot be seen from the ship. In other words, under these conditions, the buoy signal lights appear and disappear in the same way as the period of the swell.

Therefore, if the blinking cycle of the buoy signal light matches the cycle of the swell, the blinking signal light may not be visible at all from onboard the ship. This situation occurs when the timing when the buoy signal light enters the valley of the swell coincides with the timing when the lamp emits light. In conventional buoy signal lights, the blinking cycle of the lamp is fixed, and the above situation often occurs.

The period of wave swells varies depending on the region, wind, and other conditions, but once the region and time are specified, the period of swells can be predicted to some extent empirically. Therefore, when using a buoy signal light, it is sufficient to use a signal light with a blinking cycle different from the expected wave swell cycle. However, the blinking cycle of conventional buoy signal lights is fixed, so if you want to use a signal light with a different blinking cycle depending on the weather, etc.
Several types of signal lights with different flashing cycles must be prepared in advance.

This idea was devised in view of the above-mentioned conventional problems, and its purpose was to create a simple structure that does not impair the waterproofness of the signal light, and to switch and adjust the flashing cycle of the lamp with simple operation. Our objective is to provide a buoy signal light that allows for

The buoy signal light of this invention which achieves the above object is a buoy signal light having a main body case 10, a power battery 12, a flashing controller 14, a lamp 20, and a transparent hood 24.
The power supply battery 12 is built inside, and the transparent hood 24 is detachably and liquid-tightly attached to the upper end side of the power supply battery 12, and the transparent hood 24 covers the blinking controller 14 and the lamp 20. The blinking controller 14 is interposed between the power supply ground 12 and the lamp 20, and includes a case, a socket 18, an oscillation circuit, and circuits R1 to R5, C1 to C1 to change the repetition period. C5 and a cycle changeover switch 22, the lamp 20 is attached to the socket 18 and is driven to blink by the oscillation circuit, and the cycle changeover switch 2
2 is a circuit R1 to R5, C1 that is attached to the outer surface of the case and changes the repetition period;
-C5 is selected to change the repetition period of the oscillation circuit.

Hereinafter, embodiments of this invention will be described in detail based on the drawings.

FIG. 1 shows the mechanical structure of a buoy signal light according to an embodiment of this invention, and FIG. 2 shows the structure of its blinking control circuit. In FIG. 2, the main body case 10 has a cylindrical shape with a closed lower end and is constructed of integrally molded plastic. A battery 12 is built in the main body case 10, and a blinking controller 14 is attached to the upper opening. The blinking controller 14 is a unit with an electric circuit described below built into the case.
It has a positioning flange 16, and is mounted so as to close the upper end opening of the main body case 10. Although not shown, the battery 12 inside the main case 10 and the blinking controller 1 are located on the bottom side of the case of the blinking controller 14.
A connection structure for connecting the four terminal portions is provided.

A socket 18 is attached to the upper surface of the case of the flasher controller 14, and a lamp 20 is coupled thereto. Further, a period changeover switch 22 (described later) is attached to the outer surface of the case of the blinking controller 14, and this switch 22 is connected to the blinking controller 1.
4 can be manually switched from outside.

A transparent hood 24 is attached to cover the blinking controller 14 and lamp 20. The transparent hood 24 is an integrally molded piece of colorless and transparent plastic.
It has a cylindrical shape with a closed top. Main case 1
A male thread is formed on the outer periphery of the upper end of the transparent hood 24, and a female thread is formed on the inner periphery of the lower end of the transparent hood 24. The transparent hood 24 is attached by screwing into the main body case 10 and is detachable. There is. At this joint, a packing 26 is sandwiched between the flange of the main case 10 and the lower end of the transparent hood 24, and an O-ring 28 is inserted between the outer periphery of the main case 10 and the inner periphery of the transparent hood 24. It is installed. With these, the main body case 10 and the transparent hood 24 are liquid-tightly connected. Further, the flange 16 of the blinking controller 14 is pressed down by the stepped portion of the transparent hood 24 by screwing it into the main body case 10, and is positioned and fixed.

As shown in FIG. 2, the oscillation circuit that drives the lamp 20 to blink is centered around a collector-coupled unstable multivibrator in which transistors Q1 and Q2 are turned on and off in a complementary manner. When the transistor Q2 is turned on, the driving transistor Q3 of the lamp 20 is also turned on, and the lamp 20 is lit.
Conversely, when transistor Q1 is turned on, transistors Q2 and Q3 are turned off, and lamp 20 is turned off.

The on period of transistor Q2 in this unstable multivibrator is determined by the time constants of resistor R6 and capacitor C6. Since the values of this resistor R6 and capacitor C6 are appropriately set in advance, the time for one light emission of the lamp 20 is constant. The on period of transistor Q1 is the resistance group R1~
It is determined by R5 and the capacitor groups C1 to C5.
One of the five resistors R1 to R5 is selected by a switch 22a interlocked with the period changeover switch 22. Similarly, five capacitors C1
-C5 is selected by switch 22b interlocking with switch 22a. In the illustrated example, resistor R2 and capacitor C2 are selected, and at this time, the on-time of transistor Q1 is determined by the time constant of resistor R2 and capacitor C2.
The values of the resistors R1 to R5 are different, and the values of the capacitors C1 to C5 are also different. These resistors R1
By switching the combination of R5 and capacitors C1 to C5 using interlocking switches 22a and 22b, the time constant can be varied in five steps. In other words, the on-time of the transformer Q1 can be changed in five stages using the switch 22.

On time of transistor Q1 and transistor Q
Since the sum of the on-times of the two transistors is the oscillation period of this unstable multivibrator, switching only the on-time of the transistor Q1
This means that the repetition period of the flashing can be changed without changing the flashing time.

In FIG. 2, 30 is a photoconductive element such as CdS, which is attached to the blinking controller 14 in such a manner that it can receive external light. When this photoconductive element 30 is irradiated with strong external light, its resistance value becomes extremely small, and at this time, the oscillation of the unstable multivibrator stops.
The lamp 20 remains off.

As is clear from the above explanation, the transparent hood 24
By rotating and removing it from the main body case 10 and operating the switch 22 attached to the flashing controller 14 exposed there, the repetition cycle of the flashing of the lamp 20 can be arbitrarily selected from five stages and set. can do. Once this switching setting operation is completed, the transparent hood 24 can be screwed into the main body case 10, and the waterproofness of this buoy signal light will not be impaired in any way by the switching switch 22.

Note that in the above embodiment, the resistor group R1 to R5 and the capacitors C1 to C5 are switched at the same time, which is effective for switching the time constant over a wide range. It is not limited. In other words, even if only the value of either the capacitor or the resistor is changed, the time constant related to the repetition period of the unstable multivibrator can be changed. Furthermore, the configuration of the oscillation circuit for blinking control is not limited to the illustrated unstable multivibrator type, and other CR oscillation circuits may be used.

As explained in detail above, according to the buoy signal light according to this invention, the blinking cycle of the lamp can be switched with a simple operation, and when using this, the cycle of sea swells and the blinking cycle can be changed. It is easy to make them different, and by synchronizing the blinking period and the undulating period, it is possible to prevent the signal light from becoming invisible. Further, by providing the flashing cycle changeover switch, the waterproof property of the signal light is not impaired in any way, and the waterproof structure is simple and can be implemented at low cost.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a buoy signal lamp according to an embodiment of the invention, and FIG. 2 is a circuit diagram of an oscillation circuit portion for blinking control in the same buoy signal lamp. 10...Body case, 12...Battery, 14...
Flashing controller, 18...Socket, 20...Lamp, 22, 22a, 22b...Period selection switch, 24...Transparent hood, 26...Packaging,
28...O-ring, R1-R5...Resistor group for cycle switching, C1-C5...Capacitor group for cycle switching.

Claims (1)

[Claims for Utility Model Registration] A buoy signal light having a main body case 10, a power battery 12, a blinking controller 14, a lamp 20, and a transparent hood 24, wherein the main body case 10 has the power battery 1 inside.
2 is built-in, and the transparent hood 24 is attached to the upper end side of the transparent hood 24.
is attached removably and liquid-tightly, the transparent hood 24 covers the flashing controller 14 and the lamp 20, and the flashing controller 14 connects the power battery 12 and the lamp 20. The lamp 20 has a case, a socket 18, an oscillation circuit, circuits R1 to R5, C1 to C5 for changing the repetition period, and a period changeover switch 22, and the lamp 20 is connected to the socket 18. The period changeover switch 22 is attached to the outer surface of the case and selects one of the circuits R1 to R5 and C1 to C5 for changing the repetition period. A buoy signal lamp characterized in that the repetition period of the oscillation circuit is changed by changing the repetition period of the oscillation circuit.