Wrench-type light guide plate fire extinguisher indicator display device

A lighting device for fire extinguishers using a lenticular lens light guide plate and LED illumination with dry cell batteries addresses the challenge of visibility in power outages, enhancing brightness and battery efficiency for extended use.

JP2026086302APending Publication Date: 2026-05-26菊地 刚志

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
菊地 刚志
Filing Date
2024-11-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

There is no effective lighting device for fire extinguishers, especially in locations without commercial power supply, making it difficult to locate them at night, and existing lighting devices with dry cell batteries have limited brightness and battery life.

Method used

A lighting device using a light guide plate with a lenticular lens and LED illumination, powered by dry cell batteries, which enhances brightness and extends battery life by efficient light distribution and low power consumption.

Benefits of technology

The device provides clear indication of fire extinguisher location even in power outages, with improved brightness and extended battery life, ensuring visibility during emergencies.

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Abstract

Traditionally, fire extinguisher pictograms do not emit light, making it difficult to recognize their location. [Solution] This invention incorporates a device that reduces battery consumption even when using a battery power source, allowing it to be installed anywhere, making installation work easy and reducing construction costs.
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Description

Technical Field

[0001] The present invention relates to a lighting device for informing the installation of a fire extinguisher.

Background Art

[0002] The present invention can inform the installation situation by brightly lighting the necessary items at the place where a fire extinguisher is installed using electric energy.

[0003] When a fire extinguisher is installed in a dark place inside or outside the house, it is necessary to use a lighting device that uses a light guide plate to light up and brighten the pictogram indicating the place where the fire extinguisher is installed at night.

[0004] A lighting device using a light guide plate uses a light guide plate using a very high-efficiency lenticular lens.

[0005] An ordinary light guide plate creates concave pits on an acrylic plate, while a lenticular lens is a light guide plate with a convex shape. By providing a convex lens, the refraction is expressed as a three-dimensional stereoscopic image through the difference in the left and right viewing angles, resulting in increased light efficiency and a brighter light guide plate surface. The light guide plate used this time became about 30% brighter.

Prior Art Documents

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Conventionally, there was no lighting device for the installation of a fire extinguisher, and the installation location could not be known at night. Therefore, there is a lighting device powered by a dry battery, which can be installed even in places where there is no commercial power supply at the installation location.

Means for Solving the Problems

[0007] This invention allows installation even in locations without commercial power, by using dry cell batteries as a power source and illuminating the pictogram section of a light guide plate using a lenticular lens with an LED lighting device.

[0008] However, since using dry cell batteries as a power source for lighting has limitations in battery capacity, the lighting device uses a light guide plate with a very efficient lenticular lens to allow for low brightness while considering the battery capacity.

[0009] By using a light guide plate with a highly efficient lenticular lens in the lighting device, the amount of dry cell batteries used can be reduced.

[0010] To reduce battery consumption and extend usage time, a colored LED lamp is attached to the LED lighting device and illuminates when the battery capacity is low to indicate that the batteries need replacing.

[0011] Because the lighting device on a fire extinguisher operates at low brightness, the display surface needs to emit light efficiently. To achieve this, a lens film is attached to the light-emitting surface to efficiently distribute the generated light across the entire surface.

[0012] The structure of the problem-solving means of the present invention is shown in Figure 1 and Figure 2.

[0013] Figure 1 shows a circuit block diagram. (1) Dry cell battery, (2) LED circuit board light-emitting device, (3) Light guide plate using a lenticular lens

[0014] Figure 1 illustrates the operation of the present invention.

[0015] (1) Power is supplied by dry cell batteries. (2) Power is supplied by the LED circuit board light-emitting device. (3) The light guide plate device using a lenticular lens is lit.

[0016] Light from the LED substrate light-emitting device is sent to a light-emitting device consisting of a light guide plate using a lenticular lens, which illuminates the fire extinguisher pictogram attached to the entire surface of the light guide plate.

[0017] Figure 2 shows the internal structure of the light guide plate device.

[0018] In Figure 2, (1) is the LED, (2) is the connector, (3) is the printed circuit board, (4) is the light guide plate, (5) is the case, and (6) is the colored LED.

[0019] The light emitted from the LED is emitted from the entire surface of the light guide plate using a lenticular lens.

[0020] The emitted light is reflected on the bottom surface of the light guide plate and goes to the upper surface, and the light guide plate surface emits light.

Advantages of the Invention

[0021] Since the present invention uses a battery, it can be used in places where there is no commercial power supply such as a fire extinguisher is installed and the power supply cannot be taken out.

[0022] Since the present invention uses a light guide plate using a lenticular lens, the LED can emit light with higher brightness than that using the conventional light guide plate.

[0023] Since the present invention uses a light guide plate using a lenticular lens, the consumption of the battery can be suppressed compared to that using the conventional light guide plate. However, if the brightness is the same as that using the conventional light guide plate, the power consumption of the LED substrate light emitting device can be reduced and it can be lit for a longer time.

[0024]

Brief Description of the Drawings

[0025] [Figure 1] System diagram of the LED control device [Figure 2] Structural diagram of the light emitting device for fire extinguisher

Embodiments for Carrying Out the Invention

[0026] Current flows from the power supply (1) in Figure 1 to the LED in the light guide plate device (2) in Figure 1, causing it to light up.

[0027] This action conserves battery power, allowing the device to be used for extended periods, and thus fulfilling its original purpose by clearly indicating the location where the extinguisher should be placed. [Examples]

[0028] The pictograms for the digestive system must be at least 90mm x 90mm in size. The LEDs in this size light guide plate device are lit using dry cell batteries.

[0029] Figure 2 shows that if the light guide plate device is assumed to be 90mm x 90mm in size and placed in case (5), it becomes a small and lightweight light guide plate device. [Industrial applicability]

[0030] The fire extinguisher was placed in the corner of the room. Previously, because there was no lighting, the location of the fire extinguisher was not visible, and in the event of a fire, it could not be used, making firefighting impossible.

[0031] Because it is small, it can still be illuminated even if its location, such as in a warehouse or other storage area, is slightly moved.

[0032] This invention uses dry cell batteries and does not require any special batteries, thus reducing operating costs. [Explanation of Symbols]

[0033] (1) Dry cell battery (2) LED light-emitting substrate device (3) Light guide plate device

Claims

1. Fire extinguisher pictogram illumination device.

2. A light guide plate device using a lenticular lens for illuminating fire extinguisher pictograms.

3. By controlling the power supply to dim the LED illumination and using a light guide plate with a high-efficiency lenticular lens, power consumption is reduced.

4. A structure that integrates the light-emitting device and the battery device.

5. The LED circuit board in the light-emitting section has colored LEDs that light up when the battery capacity is low to indicate that the batteries need to be replaced.