JP2003016818A - Indicating lamp for disaster prevention equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indicating lamp for a disaster-prevention equipment, used mainly for disaster-prevention for a tunnel, of proper appearance which is hardly deposited with soil. SOLUTION: This indicating lamp for the disaster-prevention equipment is constituted of a body 1, built in with a light source in its inside opened frontward, and a translucent globe 2 detachably attached to an opening part of the body 1, and the front face of a globe face exposed from the body 2 of the globe 2 is brought into a single round curved face. Ring grooves 11, having an wedge-shaped cross-section opened outward, are formed in multiple from the center toward the outside in the inner face of the globe.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for disaster prevention of a tunnel composed of a main body and a translucent glove, and is an indicator for disaster prevention equipment indicating the installation place of the disaster prevention equipment near or directly attached to the disaster prevention equipment. Regarding the lights.

[0002]

2. Description of the Related Art Conventionally, as a red indicator light for disaster prevention equipment for tunnels, for example, an indicator light for fire alarm as shown in FIG. 8 has been used.

In FIG. 8, the indicator lamp is composed of a main body 101 and a globe 102. The main body 101 is LE as a light source
The D lamp 103 is built in, and the globe 102 is detachably attached to the opening of the collar 104 formed in the front part of the main body by screwing.

Here, the globe 102 is made of a translucent synthetic resin colored red, and a stepped ring groove 105 is formed on the inner surface of the globe so that the entire globe is lightened by the light from the LED lamp 103. It is formed in multiple layers.

[0005]

However, in such a conventional indicator light for disaster prevention equipment, when the indicator light for disaster prevention equipment is attached to the panel surface 106 of the equipment along the tunnel wall surface, etc. The protrusion amount H is about 50 mm, and the appearance is not good, and there is a problem that dirt is likely to be attached because it is directly affected by the air flow in the tunnel.

[0006] It is an object of the present invention to provide an indicator light for a disaster prevention device, which is mainly used for disaster prevention of a tunnel and which has a good appearance and is resistant to dirt.

[0007]

To achieve this object, the present invention is constructed as follows. The present invention relates to a disaster prevention device indicator light including a main body having a light source inside and a front opening and a light source inside, and is exposed from the main body of the globe in a disaster prevention device indicator light. The front of the glove surface is a single curved surface. Further, it is characterized in that a ring groove having a wedge-shaped cross section opened outward is multiply formed from the center toward the outside on the inner surface of the globe.

In this way, the indicator light for disaster prevention equipment of the present invention is
By changing the shape of the conventional mountain-shaped glove to a single rounded curved surface, the protruding height is reduced to 60% or less of the conventional one, for example, the conventional 5
If it is about 0 mm, it can be reduced to 30 mm or less.

Regarding the visibility from an oblique side due to the thinning, a ring groove having a wedge-shaped cross section that opens outward is multiply formed from the center to the outside on the inner surface of the globe having a single curved surface. By providing the optical structure
The internal light source is pulled up to the front to generate a virtual image, and the virtual image of the light source ensures visibility from an oblique side even when the device is made thin.

As a dimensional condition of the indicator light for disaster prevention equipment of the present invention, the thinness degree (H / D) defined by the ratio of the globe projection amount H from the main body to the maximum body diameter D is about 0.
The flatness (H / R) which is 3 or less and is defined by the ratio of the radius R of the globe curved surface to the amount H of protrusion of the globe is about 0.1 to about 0.2.

According to the experimental consideration by the inventor of the present application, as a desirable mode of the indicator light for disaster prevention equipment of the present invention, the flatness (R / D) is about 0.16 in thinness (H / D). H)
It was confirmed that was about 0.2.

Furthermore, the indicator light for disaster prevention equipment of the present invention is characterized in that protrusions or grooves for hand-turning are formed at a plurality of positions on the periphery of the globe. The globe of the indicator light for disaster prevention equipment is screwed and fixed to the main body, and when exchanging the LED lamp used as the light source, it is necessary to turn the globe by hand to remove it, but due to the slimming down Since it is difficult for the glove to slip and to rotate the glove, protrusions for this are provided at multiple locations.

[0013]

1 is an explanatory view showing an embodiment of an indicator light for disaster prevention equipment for tunnel disaster prevention according to the present invention. In FIG. 1, the disaster prevention device indicator light of the present invention comprises a main body 1 and a globe 2. The main body 1 has a flange portion 1a which is formed in a flange-like shape and is opened at the front, and a translucent globe 2 molded of red synthetic resin or the like is attached to the opening portion of the flange portion 1a.

The globe 2 in the indicator light for disaster prevention equipment of the present invention has a thin structure in which the amount of protrusion to the front of the main body 1 is sufficiently small. In addition, turning protrusions 11 are integrally formed at three locations on the periphery of the globe 2,
The glove 2 is easily attached to and detached from the collar portion 1a by turning.

FIG. 2 is a front view of FIG. 2 (A), a side view of FIG. 2 (B) and a rear view of FIG. 2 (C) of the indicator light for disaster prevention equipment according to the present invention shown in FIG. From the explanatory view of the indicator light for disaster prevention equipment of FIG. 2, it is easily understood that in the present invention, the height of the globe 2 provided in the front part of the indicator light for disaster prevention equipment is sufficiently small.

FIG. 3 is a sectional explanatory view showing the internal structure of the indicator light for disaster prevention equipment of the present invention in a half section. In FIG.
A receipt 4 is screwed and fixed inside the main body 1 by a tap screw 5, and an LED lamp 3 is attached in front of this receipt 4. The cable connector 6 is screwed into the rear of the main body 1, and the cable 8 can be fixed to the cable connector 6 by using the top 8 and the cap nut 7.

The LED lamp 3 mounted on the reception 4 has a large number of LEDs and a drive circuit for driving the LEDs inside, and is driven to emit light by applying, for example, AC 100 V from the outside. A flange 1a formed like a flange on the front of the main body 1.
The fitting groove 1b is formed on the peripheral edge of the opening of the fitting portion 12 formed on the rear peripheral edge of the globe 2 in the fitting groove 1b.
The packing 9 is put in between and fixed by screwing.

The globe 2 has a spherical shape in which the front face of the globe exposed from the main body 1 is formed by a rounded curved surface having a single R. On the inner surface of the globe 2, a multiple ring groove 10 is formed in which ring grooves each having an outwardly open wedge-shaped cross section are multiply formed from the center toward the outside.

In the preferred embodiment of the indicator light for disaster prevention equipment of the present invention, the maximum diameter D which is the portion of the collar portion 1a of the main body 1 is, for example, D = 92 mm, and the glove from the collar portion 1a of the main body 1 is used. The protrusion amount H of 2 is the curvature R = 7 forming the R surface.
When 7 mm, H = 15 mm. Therefore, when the disaster prevention device indicator light of the present invention is attached to the cross section of the device in the tunnel, the protrusion amount Hmax inward of the tunnel is
For example, Hmax can be suppressed to 25 mm.

FIG. 4 shows the glove 2 of FIG. 3 taken out. FIG. 4 (A) is a front view, FIG. 4 (B) is a partial cross-sectional side view, and FIG. The expanded sectional view of the a section of FIG.4 (B) is shown.

In the globe 2 used in the indicator light for disaster prevention equipment of the present invention, first, the protrusion amount H of the globe 2 is set to, for example, H =
With a fixed value such as 15 mm, the value of the curvature R with the entire glove surface as a curved surface is determined.

As shown in an enlarged view in FIG. 4 (C), the inner surface of the glove 2 is provided with a multi-ring ring groove 10 in which ring grooves each having a wedge-shaped cross section which is opened outward are formed in multiple layers from the center to the outside. The ring groove is formed, and the radial pitch p of one ring groove is, for example, p = 2 mm, and the groove depth in the optical axis direction is about 1.0 mm.

Specifically, assuming that the curvature R of the rounded surface of the surface of the globe 2 is 77 mm, the curvature R of the rounded surface connecting the depth side edges of the multiple ring groove 12 is 74.5 mm,
The curvature R of the rounded surface connecting the front edge on the near side is 73.5.
It is formed so as to be mm.

Here, as a parameter indicating the degree of so-called thinness, the amount of protrusion of the globe 2 with respect to the main body 1 in the indicator light for disaster prevention equipment of the present invention is small, and the amount of protrusion H of the globe 2 with respect to the maximum diameter D of the main body 1 in FIG. A thin lamp defined by the ratio (H / D) is defined.

In the preferred embodiment of the present invention, the maximum diameter D of the main body is D = 92 mm and the protrusion amount H of the glove is H = 15 mm. Therefore, the thinness (H / D) in this case is 0.16.
Becomes The value of the thinness (H / D) indicates that the smaller the numerical value is, the smaller the amount of protrusion of the globe with respect to the main body 1 is, so-called thinness. Incidentally, when the thinness is calculated as H = 500 and D = 92 in the conventional example of FIG. 8, a value of 0.55 is shown.

When the present invention is used as a tunnel disaster prevention indicator light, the projection amount Hmax at the time of mounting in FIG. 3 is, for example, Hma.
Since it is desirable that x = 30 mm or less, in this case, the globe protrusion amount H is H = 20 mm. In this case, the thinness (H / D) is 0.22. Therefore, as a thin indicator light for the disaster prevention device indicator light of the present invention, a thinness degree (H / D) of about 0.25 or less is taken into consideration with a margin.

Next, in the indicator light for disaster prevention equipment of the present invention, the protruding portion of the globe 2 is determined by the ratio (H / R) of the amount of protrusion H of the globe to the curvature R that determines a single curved surface of the globe 2. Defines the flatness of.

The flatness (H / R) is the thinness (R /
The globe projection amount H used in D) is set to a fixed value as it is, and the value of the curvature R is adjusted so that the projected rounded curved surface of the globe 2 is optimal.

In the glove 2 of the embodiment shown in FIG. 3,
The curvature R = 77 mm, and the flatness (H /
R) indicates 0.195. From this, the desirable thinness (H / D) in the indicator light for disaster prevention equipment of the present invention is about 0.16, and the flatness (H / R) showing the state of the curved surface of the globe 2 is about 2.0. I understand that

As described above, if the desired thinness (H / D) and flatness (H / R) values of the indicator light for disaster prevention equipment of the present invention are determined, the maximum value of the main body 1 in the indicator light for disaster prevention equipment is determined. By determining D and the amount H of protrusion of the globe, the optimum value of the curvature R of the curved surface can be uniquely obtained.

Next, the optical function of the multiple ring groove 10 formed on the inner surface of the globe 2 of the indicator light for disaster prevention equipment of the present invention will be described.

FIG. 5A shows the LED lamp 3 on the main body 1 side located inside the globe 2 of the indicator light for disaster prevention equipment of the present invention.
Through the glove 2 in a transparent state. The LED lamp 3 attached to the main body 1 has a tip portion slightly protruding from the tip of the collar portion 1 a of the body 1.

For the tip of such an LED lamp 3,
When the LED lamp 3 is viewed through the globe 2 attached to the main body 1 from an oblique side of the globe 2, specifically, an oblique side of more than about 10 ° with respect to the side mounting surface, the LED lamp 3 is connected to the LED 3 through the globe 2. The lamp virtual image 13 as shown by the imaginary line can be seen instead of the real image.

It is presumed that the virtual lamp image 13 is caused by the optical action of the multiple ring groove 10 formed on the rounded curved surface or the inner surface of the surface of the globe 2. The inventor of the present application forms a ring groove having a wedge-shaped cross-section opened to the outside as the shape of the ring groove with a pitch p = 2 m as shown in FIG.
m, when formed with a depth of about 1.0 mm in the optical axis direction, L
It was possible to experimentally obtain a state in which the ED lamp 3 was turned on and the brightness when viewed from an oblique side was most optimal.

The optical action of the multiple ring groove 10 formed on the inner surface of the globe 2 can be confirmed, for example, as shown in FIG. 5 (B). In FIG. 5B, a thick black line 15 is drawn vertically and horizontally on the horizontally arranged paper 14. The globe 2 of the indicator lamp for the disaster prevention device of the present invention shown in FIG. 4 is placed on the paper 14 on which the line 15 is drawn, and the line 15 is slanted laterally while pulling up slowly in the vertical direction indicated by the arrow. When viewed, the line 15 is sucked up so as to be sucked into the protrusion center of the spherical surface of the globe 2 like the broken line virtual image 16, and the line virtual image 16 can be seen.

When the line 15 thus drawn on the horizontal sheet 14 is viewed through the globe 2 of the present invention, the line 15 produces an optical effect as if it were sucked up like a line virtual image 16 as shown in FIG. 5 (A). A virtual lamp image 13 is formed, which causes the globe 2 to project into the globe H = 15.
Even if the thickness is as thin as mm, the visibility performance with sufficient brightness is obtained from the diagonal side.

FIGS. 6 and 7 show another embodiment of the globe 2 used for the indicator light for disaster prevention equipment of the present invention, in which seven types of globes 2A, 2B and 2C are formed by changing the curvature R forming the rounded curved surface. , 2D, 2E, 2F, 2G.

Here, the curvature R of the rounded curved surface in the gloves 2A to 2G is 70 mm, 77 mm, 80 mm, 90.
mm, 100 mm, 110 mm, 150 mm. When the flat portion (H / R) in this case is obtained, 0.210, 0.195, 0.
188, 0.170, 0.150, 0.136, 0.1
A value of 00 has been obtained.

The globe 2B having a curvature R = 77 mm shown in FIG. 6 is the same as that used in the embodiment shown in FIG.

Further, the curvature R of the R surface becomes large, for example, as shown in FIG.
In most of the gloves 2C and 2D of FIG. 7 and the gloves 2E and 2G of FIG. 7, most of them including the center of the glove surface are a single rounded curved surface according to the curvature R value of each, but the influence of the air flow at the peripheral edge of the glove. In order to suppress, the curvature R value that gives another curved surface is set as necessary,
For this reason, the two rounded curved surfaces form a glove.

From the embodiments of the gloves 2A to 2G shown in FIGS. 6 and 7, if the flat portion of the globe usable in the indicator light for disaster prevention equipment of the present invention has a value of about 0.1 to 0.2. I know it's good. However, when the curvature R of the curved surface becomes large like the gloves 2E to 2G in FIG. 7, the effect of pulling up the virtual image by the multiple ring groove 10 on the inner surface as shown in FIG. 5 decreases, so that the gloves 2A to 2A in FIG. It is desirable to use a glove having a curvature R in the range of 2D. Of course,
As described above, the glove 2B is the most preferable embodiment.

In the above embodiment, the indicator light used for the disaster prevention of the tunnel is taken as an example. However, the indicator light for the disaster prevention device is a red indicator light in the usual fire alarm equipment other than for the disaster prevention of the tunnel. Of course, it may be used as it is.

Further, the present invention is not limited to the indicator light for tunnel disaster prevention and fire alarm, and the indicator light structure of the present invention can be applied as it is to an indicator light of a thin structure in which the amount of protrusion of the globe is suppressed. Also in this case, the maximum diameter D of the main body, the amount of protrusion H of the globe, and the curvature R of the curved surface of the globe R according to the thinness (H / D) and flatness (H / R) defined in the above embodiment.
Can be uniquely determined by applying a specific numerical value.

Further, in the above-mentioned embodiment, the turning projection 11 is formed on the globe 2, but it may be a turning groove or may be formed at a plurality of locations exceeding three locations.

[0045]

As described above, according to the present invention, the shape of the glove protruding from the main body is changed from the conventional mountain shape to the front having a single rounded curved surface, thereby suppressing the amount of glove projection to the main body. This makes it possible to achieve a thin profile, improve the appearance of the indicator light for disaster prevention equipment, and at the same time, because it has a small amount of protrusion, it is less susceptible to the effects of air flow when installed in a tunnel, and dirt is less likely to adhere to it. Furthermore, since the amount of protrusion of the gloves inside the tunnel is small, it is easy to remove stains on the indicator light for disaster prevention equipment even when cleaning the inside of the tunnel.

Further, even if the light source is slightly projected from the main body by the optical action of the multiple ring groove formed by multiplying the ring groove having the wedge-shaped cross section opened outward on the inner surface of the globe from the center to the outside. As a result, a virtual image is formed so as to be pulled up into the globe, and thus visibility from an oblique side can be sufficiently secured even if the globe is thin.

Further, by forming protrusions or grooves for hand-turning at a plurality of places on the periphery of the glove, even if oil or soot adheres to the surface of the glove and becomes slippery when installed in the tunnel, the hand-turning protrusions or By using the groove, the glove can be easily taken out by hand, and the glove for performing necessary work such as replacement of the internal light source and cleaning of the glove can be easily done.

[Brief description of drawings]

FIG. 1 is an explanatory view of an indicator light for disaster prevention equipment according to the present invention.

FIG. 2 is an explanatory view of a front surface, a side surface, and a rear surface of the disaster prevention device indicator light of the present invention.

FIG. 3 is an explanatory cross-sectional view showing the internal structure of the indicator light for disaster prevention equipment of the present invention.

FIG. 4 is an explanatory view showing the clove of the indicator light for disaster prevention equipment of the present invention taken out and shown.

FIG. 5 is an explanatory diagram of an optical function by the multiple ring groove of the globe.

FIG. 6 is an explanatory view of a glove used for the indicator light for disaster prevention equipment of the present invention in which the radius is changed.

FIG. 7 is an explanatory view of a glove used for the indicator light for disaster prevention equipment of the present invention in which the radius is changed following FIG.

FIG. 8 is an explanatory diagram of a conventional disaster prevention device indicator light.

[Explanation of symbols]

1: Main body 1a: collar part 1b: Mating groove 2: Gloves 3: LED lamp 4: Recep 5: Tap screw 6: Cable connector 7: Cap nut 8: Frame 9: Packing 10: Multiple ring groove 11: Protrusion for turning 13: Virtual lamp image 14: Paper 15: Line 16: Line virtual image

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Teruo Iwata             2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho             Chiki Co., Ltd. (72) Inventor Hiroshi Yashima             2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho             Chiki Co., Ltd. F-term (reference) 5C083 AA02 CC30 DD09 DD19 JJ24

Claims (5)

[Claims] 1. A disaster prevention device indicator lamp comprising a main body having a light source inside and a front opening, and a translucent globe detachably attached to the opening of the main body. An indicator lamp for disaster prevention equipment, which has a single rounded curved front surface exposed from the main body. 2. The indicator light for disaster prevention equipment according to claim 1, wherein the globe further has a ring groove having a wedge-shaped cross-section that is open outward on the inner surface of the globe and is formed in multiples from the center to the outside. Indicator light for disaster prevention equipment. 3. The indicator light for disaster prevention equipment according to claim 1, wherein a glove protrusion amount H from the main body with respect to the maximum diameter D of the main body.
And the flatness (H / D) defined by the ratio of the glove protrusion amount H to the radius R of the glove curved surface is about 0.3 or less.
R) is about 0.1 to about 0.2, an indicator light for disaster prevention equipment. 4. The disaster prevention device indicator light according to claim 3, wherein the flatness (H / D) is about 0.16 and the flatness (H / R) is about 0.2. Indicator light for disaster prevention equipment. 5. The disaster prevention device indicator light according to any one of claims 1 to 4, wherein:
An indicator light for a disaster prevention device, which is provided with a protrusion or a groove for hand rotation.