KR19990030342A - Buried beacon and buried beacon - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buried indicator lamp and a buried indicator lamp device. The reflector 3a is formed by cutting the upper and lower portions of its open end side to form cutting portions 3a3 and 3a4. When the reflector 3a is viewed in the horizontal direction, its open end is inclined, but this means that the open end of the upper half reflecting surface 3a1 is higher than the open end of the lower half reflecting surface 3a2. This is because the retracting to the side and the opening end of the reflecting surface of the lower half are tilted and retracted in accordance with it, so that the reflector of the indicator lamp can be improved to make the buried marker lamp even thinner, and at the same time provide the required light distribution characteristics. It is characterized by providing a buried indicator lamp and a buried indicator lamp device easy to obtain.

Description

Buried beacon and buried beacon

The present invention relates to a buried indicator lamp and a buried indicator lamp device.

The inventors of the present invention have invented a buried indicator lamp and a buried indicator lamp device using a miniaturized indicator lamp, and have filed this as a Japanese Patent Application No. 8-262709. Fig. 22 is a sectional view of an optical axis portion of the buried indicator lamp of the prior invention. Fig. 23 is a sectional view of the same indicator lamp.

In the drawing, reference numeral 101 denotes a body, 102 a prism, 103 a lamp for a beacon, and 104 a base.

The lamp body 101 is provided with the light extraction groove 101a arrange | positioned at the upper surface, and the internal space 101b which communicates with the light extraction groove 101a. In addition, the lamp body 101 is comprised from the upper lamp body 101c and the lower lamp body 101d mixed with it.

The prism 102 is liquid-tightly disposed between the light extracting groove 101a and the inner space 101b of the lamp body 101 and regulates the light path to be at a low angle with respect to the road surface.

The lamp 103 for the indicator lamp is positioned near the focal point of the reflecting surface 103a1 in which the bulb 103b is located inside the reflector 103a in advance, and the center of the filament 103b1 is a single rotating spinning surface, as shown in FIG. It is fixed by a cap bonding agent (103c) (cap cement) so as to be integrated. Moreover, the reflector 103a integrally forms the cylinder part 103a2 at the top part, and inserts the sealing part 103b1 of the light bulb 103b in this cylinder part 103a2, and the cap bonding agent 103c in the space | interval between them. I put it in and fix it.

Moreover, the lamp 103 for beacon lamps is shape | molded in the shape in which the cut part 103a3 was formed in the upper part of the open end side of the reflector 103a. And as shown in FIG. 22, in the back body 101, such as a buried mark etc., the reflector 103a is arrange | positioned so that it may not protrude above the prism 102, and the reflected light of the reflector 103a will be made as much as possible. It is comprised so that it may inject into the prism 102.

In addition, in FIG. 22, G represents the road surface on which the beacon etc. are embedded.

The buried beacon etc. expose the upper surface of the back body 101, and are embedded and used on the road surface G. As shown in FIG. Moreover, since the indicator lamp 103 is made by holding and fixing the reflector 103a and the bulb 103b in a predetermined positional relationship in advance, it is easy to optically adjust the buried indicator lamp and at the top of the reflector 103a. Since the cut portions 103a3 are formed, the height size of the buried cover or the like can be reduced.

However, there is a demand for further thinning of the buried beacon and the like, and thus, the appearance of lamps for beacon lamps, buried beacons, and buried beacons are required.

In addition, in the case of buried signs for airports, the light distribution characteristic that maintains a predetermined luminous intensity must be satisfied in a small elevation angle range and a large horizontal angle range left and right, and this predetermined light distribution characteristic must be minimized. Satisfaction with the beacon lamp is not easy.

An object of the present invention is to provide a buried beacon and a beacon beacon which can improve the reflector of the beacon lamp and make the buried beacon more thin and at the same time obtain the required light distribution characteristics.

1 is a plan view showing an embodiment of a buried indicator lamp of the present invention,

2 is a cross-sectional view taken along the line II-II ′ of FIG. 1;

3 is a side view showing a first example of a lamp for a beacon lamp of the buried beacon lamp device which shows one embodiment of the present invention;

4 is a longitudinal sectional view along a plane including the same central axis,

5 is a front view showing the same reflector;

6 is a longitudinal sectional view along a plane including the same central axis,

7 is the same cross section view,

8 is a front view showing a second embodiment of the same beacon lamp;

9 is a front view showing a third embodiment of the same beacon lamp;

10 is a front view showing a fourth embodiment of the same beacon lamp;

11 is a cross-sectional view taken along the line II-II 'of FIG. 1 showing an optical action in one embodiment of the buried indicator lamp of the present invention;

12 is a light distribution characteristic diagram showing a standard of light distribution characteristics in a buried label or the like;

13 is a plan view of a lower lamp body in one embodiment of the buried indicator lamp according to the present invention;

14 is a plan view of the base of the embodiment of the buried indicator lamp of the present invention,

Fig. 15 is a plan view showing a curved body of a curved surface used in a buried indicator lamp according to one embodiment of the present invention;

16 is a front view showing the second embodiment of the bulb of the buried beacon and the beacon beacon of the present invention;

17 is an enlarged cross-sectional view of a portion cut along the arrow a-a in FIG. 16;

18 is a view showing the result of comparing the impact strength between the light bulb according to the present invention and the conventional halogen light bulb,

FIG. 19 shows a third embodiment of the bulb of the buried indicator lamp and the buried indicator lamp of the present invention, FIG. 19 (a) is an enlarged front view of a main part, and FIG. 19 (b) is a diagram of FIG. a) a plan view of a portion cut along the arrow bb line,

20 shows a third embodiment of the same light bulb, FIG. 20A is an enlarged front view of a main part, and FIG. 20B is a sectional view of a portion cut along the arrow cc line in FIG. 20A. ,

Fig. 21 shows a third embodiment of the same light bulb, Fig. 21A is an enlarged front view of a main part, Fig. 21B is a partial sectional view taken along the line d-d in Fig. 21A;

Fig. 22 is a sectional view of an optical axis portion of a buried cover of the prior invention, and

It is sectional drawing of the lamp for the same indicator lamps.

* Explanation of symbols for main parts of the drawings

A: buried beacon light B: base

G: Road surface L1, 3b, 103b: Light bulb

R1, R2: Ray 1, 101: Isometric

1a: upper body 1b: lower body

1b1: Flange 1b2, 1b3: Through hole

1c, 101b: Internal space 1d, 101a: Light emitting groove

1e: flat part 1f: slope

1 g, 14, 17: mounting hole 2, 102: prism

3, 103: lamp for indicator lamps 3a, 103a: reflector

3a1: upper half reflecting surface 3a2: lower half reflecting surface

3a5: facets 3a6, 3a7, 3a8: joint

3b1, 21 bulb 3b2, 24, 103b1 filament

3b11 and 22: pinch seal part 3b3 and 23: metal foil

3b4, 3b4 ', 26: leg portion 3b5, 30: cap pin

3c, 103c: Cap binder 3d1, 3d2, 3d3: Heat dissipation film

4: color filter 5, 15, 16: 0 ring

11: inner circumferential end 12: standing wall

13: center recess 25: coil shape

27: support line 28: subcoil

29: bend 31: outer conductor

101b: internal space 103a1: reflective surface

103a2: cylinder part 103a3: cutting part

103b2: seal

The buried indicator lamp of the invention of claim 1 is provided with a light emitting groove disposed on the upper surface and having an inner space communicating with the light extracting groove facing upwardly inclined; A light path regulating prism disposed intimately between the light emitting groove and the inner space of the lamp body; Bulb, a bulb having a filament sealed in the bulb and a leg connected to the filament, and optically oriented to the bulb so that the open end faces the prism and the top and bottom portions of the open end side are cut almost parallel to the optical axis. A lamp for a beacon lamp having a reflector is provided.

In the present invention and each of the following inventions, definitions and technical meanings of terms are as follows.

The buried marker lamp of the present invention can be applied to desired applications such as a runway center line lamp, an induction road lamp, a stop line lamp for an airport, and an intersection sign lamp for a road.

Although the bulb is preferably a halogen bulb in terms of small high light output, a relatively small high light output can be obtained even in a bulb in which krypton or xenon gas is encapsulated. Allow use of other bulbs, even if not. The halogen bulb is formed by forming an infrared reflecting film on the surface of the bulb. However, since the light emitting efficiency is high, this configuration is suitable for the present invention.

The reflector is suitably coated with a reflective film having a high reflectance on the inner surface of the base body. However, when the base body itself is made of a material having high reflectance, for example, high purity aluminum, it is not necessary to coat the reflective film separately. Glass or metal is suitable.

In the reflector there is generally a geometric centerline of the reflector which is defined irrespective of the optical axis determined by the optical action. In the present invention, this is called the central axis of the reflector.

The buried marker lamp needs to be irradiated with light at a small elevation angle with respect to the road surface, and it is difficult to set the optical axis of the lamp at a small angle with respect to the road surface inside the lamp body. Thus, the optical path emitted from the lamp is refracted in the road surface direction through the prism in the middle. Optical path regulation means regulating the optical path in a predetermined direction as described above, for example.

Therefore, the prism of the present invention is formed to have a horizontally long opening along with light distribution characteristics. When the size of the opening end of the lamp for a beacon is adjusted to the width of the prism, the upper and lower portions of the reflector opening end of the lamp are pushed outward from the prism, and the mechanism efficiency of the buried sign lamp is lowered. On the other hand, when the size of the reflector opening end of the indicator lamp is adjusted to the size of the prism in the vertical direction, the amount of light in the left and right directions of the prism is insufficient, so that it is difficult to obtain the required light distribution characteristics.

Therefore, in the present invention, when the upper and lower portions of the lamp lamp opening end are cut almost parallel to the optical axis to the extent that the required light distribution in the vertical direction can be obtained, the size, that is, the height in the vertical direction of the indicator lamp can be reduced. Thereby, the embedding cover can be made even thinner. At the same time, the opening diameter in the transverse direction of the indicator lamp can be adjusted to the size of the prism in the transverse direction, so that the amount of light in the left and right directions can be secured as required.

In addition, if you want to secure more light in the up and down direction, the upper half reflecting surface of the reflector can be configured so that the light from the bulb does not intersect the central axis, and the lower half reflecting surface can be configured so that the light from the bulb crosses the central axis. have. The upper half reflecting surface is radiated from a light bulb and the reflected light incident on the reflecting surface is reflected so that the reflected light does not intersect the central axis. It may be parallel to the central axis, or may have an angle with respect to the center toward the open end of the reflector. When the upper half reflecting surface is formed by a plurality of facets having a free curved surface, each facet can be set so that the reflected light of each facet does not intersect the central axis.

On the other hand, the lower half reflecting surface of the reflector is radiated from the light bulb, and the reflected light incident on the reflecting surface and reflected therein intersects the central axis. It is good to set the curved axis to intersect the central axis. Moreover, you may comprise a reflective surface by the several facets provided with the free curved surface. In this case, each facet can be set so that the reflected light by each facet intersects the central axis.

If the upper half reflecting surface and the lower half reflecting surface are configured differently as described above, the junction between the two is allowed to be a discontinuous curved surface.

By the way, in order to regulate the optical relationship between a reflector and a light bulb, it is preferable to fix it via a member like a cap bonding agent. However, if necessary, the bulb may be detachable from the reflector. By adopting such a configuration, only the bulb can be replaced while the reflector is left at the time of disconnection of the bulb.

In this configuration, the light of the light bulb incident on the reflecting surface of the upper half of the reflector is reflected almost parallel to the central axis.

In contrast, light from a light bulb incident on the lower half reflecting surface is reflected upwardly inclined across the central axis.

Therefore, the reflected light at the upper half reflecting surface is incident at almost right angles to the incident surface of the prism. The reflected light at the lower half reflective surface is incident on the lower side of the inclination with respect to the incident surface of the prism. The light incident on each prism is refracted according to the angle of incidence, is emitted from the prism to form an elongated light beam (column), and is projected at a low angle toward the front of the buried marker lamp. The reflected light from the upper half reflecting surface is mainly responsible for the lower half of the central axis of the reflector. On the other hand, the reflected light from the lower half reflecting surface is mainly responsible for the upper half of the central axis of the reflector. As a result, the light distribution characteristic in the vertical direction is further improved as compared with the case where the upper and lower half reflective surfaces of the same degree are cut.

In addition, in order to separate the reflector into the upper half reflecting surface and the lower half reflecting surface and to allow the reflected light from the lower half reflecting surface to cross the central axis, the lower half reflecting surface is inclined upwardly with respect to the central axis. Can be less. This realizes miniaturization of the indicator lamp (especially the bottom size).

Therefore, since the reflector of the indicator lamp does not become an obstacle or becomes less obstructive, the embedded indicator lamp can be made thinner by that amount.

The reflector of the present invention allows the upper half reflecting surface and the lower half reflecting surface to be constituted by a plurality of facets each having a free curved surface.

According to the present invention, since each reflecting surface is constituted by a plurality of facets as described above, a desired light distribution characteristic is divided into a plurality, and the divided light distribution characteristic portion is assigned to each facet, thereby designing a free curved surface of each facet accordingly. can do. For this reason, desired light distribution characteristics can be easily realized.

In the present invention, in cutting the upper and lower sides of the open end side of the reflector, a part of the upper half reflecting surface and the lower half reflecting surface may be cut in advance, and then a reflecting film may be formed, or a reflecting film is formed on the entire reflecting surface to reflect the reflector. You may cut | disconnect the part which needs to be cut after making it by a suitable means. In addition, the above-mentioned "cutting in advance" includes obtaining the structure which removed the part which should be cut | disconnected at the time of shaping | molding in the form which cut the part of the reflector into the shaping | molding die of a basic body.

When the open end of the upper half reflecting surface of the reflector retreats to the top side, the reflected light from the lower half reflecting surface can be prevented from being reflected by the upper half reflecting surface.

According to the above configuration, the solid angle of the lower half reflecting surface is made relatively large, and the reflected light from the lower half reflecting surface is increased, thereby making it possible to realize a further light distribution characteristic.

In view of the appearance, the opening end of the upper half reflecting surface may be tilted and retracted in the horizontal direction, and at the same time, the opening end of the lower half reflecting surface may also be tilted.

In the present invention, the reflector of the indicator lamp is divided into an upper half reflecting surface and a lower half reflecting surface so that the reflected light of the lower reflecting surface crosses the central axis, so that the amount of protrusion of the lower end of the reflector can be reduced. The buried cover etc. can be made thin.

Further, the thinning facilitates the road drilling work for embedding. In addition, it is possible to reduce the weight of the cover and the like, thereby facilitating the handling thereof.

In the buried beacon of the invention of claim 2, in the buried beacon of claim 1, the leg portion of the bulb is formed between different adjacent curved portions including reflective surfaces of different shapes and extends from the top side to the open end side. It is arrange | positioned facing the junction part of the reflector provided.

In the present invention, the "bonding portion formed between adjacent different curved portions" means a portion between a pair of adjacent facets or a portion between an upper half reflecting surface and a lower half reflecting surface, and the other curved surface is adjacent between the bonding portions. Therefore, the curved surface is discontinuous at the joint.

Moreover, "extending from the top end side to the open end side" means that the junction part is formed radially centering on the top part when the reflector is seen from the open end side.

In addition, the junction part is linear and has almost no width, and can be given an appropriate width as necessary. By having a width at the joint, assembling and adjustment are easy because no disturbance is caused even if the mounting angle of the leg reflector is somewhat uneven. However, when it has such a suitable width, it is preferable to make a junction part light-diffusion property, or to make it light-shielding, and to minimize the influence which light incident on a junction part affects light distribution. Moreover, it is preferable to prevent the width to the minimum required. Known means may be used for light diffusing or light blocking.

Next, the filament of the bulb is suitable for the C-8 type extending along the width of the bulb. However, the present invention is not limited thereto, and the effects described later also inherently occur in the C-6 type and other types. Can be.

By the way, if the reflecting surface of the reflector seems to reflect the shadow of the leg portion of the filament, the light emitted from the filament is incident on the reflecting surface, and the desired reflection must be made to contribute to the light distribution. The reflected light cannot be incident on the reflective surface, and thus the effective light amount is lost. In addition, it is easy to cause light distribution.

On the other hand, in this invention, the shadow of a leg part enters into the opposing junction part mainly. Since the junction cannot originally contribute to the desired reflection, there is little loss of effective light amount. There is no dizzying light distribution.

The buried indicator lamp according to the third aspect of the invention is characterized in that in the buried indicator lamp according to claim 1, a support line is added to the leg portion of the bulb and a subcoil for fixing the support line and the leg portion is arranged.

When the subcoils are arranged, they are usually coiled. This coiling may be dense or sparse. The coiling should be over 50% of the leg length (up to 95%). Moreover, if the base end part of a subcoil and a support line is buried in the pinch seal part of a bulb, for example, fixing is ensured, and the front end may be connected to the metal foil for sealing, for example.

The buried indicator lamp of the invention of claim 4 is characterized in that heat dissipation means is formed on the top surface of the reflector in the buried indicator lamp of claim 1.

In the present invention, the heat dissipation means is preferably a film composed of a multilayer of metal oxides such as a dichroic film or a metal monolayer such as Al, Ag, Au, Cu, and the like. Therefore, the heat dissipation means can be simply configured in a small amount.

The heat radiating means may be provided on either the inner surface or the outer surface of the side opposite to the bulb as the top side of the reflector.

The buried indicator lamp of the invention of claim 5 is characterized in that the bulb is fixed to the top of the reflector by a heat absorbing adhesive in the buried indicator lamp of claim 1.

In the present invention, the adhesive preferably exhibits a dark color. Dark color is a color with heat absorption, such as gray or black.

The buried indicator lamp of the invention of claim 6 includes a buried indicator lamp according to any one of claims 1 to 5; A base having an end portion for supporting a periphery of a buried mark and the like and a recess for accommodating the buried mark and the like; And a fixing means for freely attaching and detaching the buried cover to the base.

Since the present invention embeds the buried mark lamp through the base plate, the management such as replacement of the lamp is carried out in whole or in part, for example, by replacing the upper lamp at the site with all or part of the newly prepared cover lamp and removing it. The cover which you put out can be carried out by taking it to a factory at the site and performing necessary processing.

The buried beacon lamp device of claim 7 has a plurality of mounting holes provided in the periphery of the back, and at the same time is provided with one pair of light-emitting grooves for straight or curved road surfaces. The embedding marker according to any one of claims 1 to 3; Supporting the periphery of the buried mark, etc., at the same time, having an end having a common mounting hole corresponding to any of the mounting holes for the straight road surface and the curved road face, and a recess for accommodating the buried mark, etc. A base embedded in the base; The mounting hole is provided with a fixing means for freely attaching or detaching the cover to any foundation type for straight road surface and curved road surface.

According to the present invention, any buried cover for the straight road surface and the curved road surface is provided on the base. The position of the mounting holes of the foundation can be provided at the same position as both the buried markers for the straight road surface and the curved road surface. The number of the mounting holes is preferably four in order to obtain high mechanical strength and liquid tightness while providing a pair of light extraction grooves.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to drawings.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows one Embodiment of the buried indicator light apparatus of this invention.

FIG. 2 is a cross-sectional view taken along line II-II ′ of FIG. 1.

In the figure, the buried beacon lamp device is composed of a buried beacon lamp (A) and the base (B).

1 is a lamp, 2 is a prism, 3 is a lamp for beacon, and 4 is a color filter.

At the time of construction of the buried beacon lamp device of the present invention, the road surface is drilled to bury the foundation in advance. Then, the electric wiring is taken out of the ground through the base, and the buried beacon lamp body 1 is for the straight line surface, and the 0 ring 5 is disposed on the lower surface of the upper lamp body 1a and the upper lamp body 1a. It consists of the lower isomer 1b which is liquid-tightly bonded to each other through, and the internal space 1c is formed between them. On the upper surface of the upper lamp 1a, a pair of light extraction grooves 1d facing upwards are formed at the same time in a mutually opposite direction. And the upper surface center area | region of the upper lamp body 1a is the flat part 1e, and the periphery is the inclined surface 1f. The light extraction groove 1d is opened over the flat portion 1e and the inclined surface 1f on the upper surface. 1g is four mounting holes, and is for attaching the upper body 1a formed in the peripheral part to the lower body 1b and the base B. As shown in FIG.

The prism 2 is disposed at the connection portion between the light extraction groove 1d and the internal space 1c.

The lamp 3 for the indicator lamp will be described later in detail, but is composed of the reflector 3a and the light bulb 3b housed inside the reflector 3a, and is mounted on the upper part 1a by a known method not shown. And a pair is arranged in the internal space 1c to face each prism 2.

Each filter 4 is arranged in front of the light incident part of the prism 2. Color light to project for every installation place such as a buried cover is determined.

Next, the lamp for the indicator lamp will be described with reference to FIGS. 3 to 7.

3 is a side view showing a first example of a lamp for a beacon lamp of the buried beacon lamp device which shows one Embodiment of this invention.

4 is a longitudinal sectional view along a plane including the same central axis.

5 is a front view showing the same reflector.

6 is a longitudinal sectional view along a plane including the same central axis.

7 is the same cross-sectional view.

In each figure, the same code | symbol is attached | subjected about the same part as FIG. 2, and description is abbreviate | omitted. The reflector 3a of the lamp 3 for beacon lamps is composed of an upper half reflecting surface 3a1 and a lower half reflecting surface 3a2 bounded by the central axis Ⅹ-Ⅹ '.

The upper half reflecting surface 3a1 is composed of a plurality of facets 3a5. Each facet 3a5 is composed of a free curved surface that approximates a rotational spinning surface, but the free curved surface is radiated from the light bulb 3b, and the light incident on the upper half reflective surface 3a1 is centered as shown in FIG. It is set to reflect in a direction substantially parallel to the axis Ⅹ-Ⅹ '.

On the other hand, the lower half reflection surface 3a2 is composed of a plurality of facets 3a5 in the same manner. Each facet 3a5 is composed of freely curved surfaces that are similar to the rotating spinning surface, but the freely curved surface is radiated from the bulb 3b so that the light incident on the lower half reflective surface 3a2 is about the central axis Ⅹ-Ⅹ '. It is set to reflect in a direction crossing and inclined.

In addition, since the upper and lower portions of the open end side are cut to form the cut portions 3a3 and 3a4, the reflector 3a has a horizontally long shape in which the top and bottom are parallel.

In addition, when the reflector 3a is viewed in the horizontal direction, the opening end is inclined, but this is because the opening end of the upper half reflecting surface 3a1 is retracted toward the top side than the opening end of the lower half reflecting surface 3a2, and also the lower half This is because the opening end of the reflecting surface is inclined in accordance with it and is retracted.

On the other hand, the bulb 3b includes a cylindrical bulb 3b1 made of quartz glass and a filament 3b2 sealed in the bulb 3b1. The bulb 3b is arranged such that the filament 3b2 is positioned at a predetermined position of the reflector 3a, for example, the central portion of the filament 3b2 is located almost at the focal point of the rotating object surface.

More specifically, the bulb 3b1 has a structure in which the base end is pinched and the tip is chipped off. A pair of metal foils 3b3 are buried in the pinch seal portion 3b11, and a pair of leg portions 3b4, 3b4 'extend from the metal foil 3b3 into the bulb 3b1. Moreover, a pair of cap pins 3b5 protrude out of the bulb 3b1 from the metal foil 3b3. The leg portions 3b4 and 3b4 'extend from both ends of the filament 3b2, and energize the filament 3b2 and mechanically support the filament 3b2. The filament 3b2 forms a coil arranged with the shaft substantially aligned with the axis of the C-8 type, that is, the bulb 3b1.

Coils are double coils or single coils. Therefore, although the leg part 3b4 of the front end side of the bulb 3b1 of the filament 3b2 extends substantially parallel to the filament 3b2, in this embodiment, this leg part 3b4 is made of the reflector 3a. It opposes the part 3a3 from which the upper part of the rotating object surface was removed. However, if necessary, the leg portion 3b4 may be disposed opposite to the junction of the upper half reflective surface 3a1 and the lower half reflective surface 3a2.

The bulb 3b is configured of a halogen bulb formed by encapsulating an appropriate amount of halogen such as iodine or bromine in the bulb 3b1.

3c is a cap bonding agent, and the inorganic material, such as heat-resistant adhesive agent, for example, aluminum oxide (A1203), has good heat absorption, for example, contains carbon, and is gray or black. The cap bonding agent 3c supports the bulb 3b on one side by fixing the pinch seal portion 3b11 formed at the base end of the bulb 3b to the neck portion 3a2 in the neck portion 3a6 of the reflector 3a. It is fixed to the predetermined position of the reflector 3a. Since the cap bonding agent 3c shows black, heat (infrared rays) are absorbed well, and the heat of this bonding agent 6c is further transmitted by a reflector and a cap. Therefore, since the temperature rise of the pinch seal part 3b11 falls, the pinch seal part 3b11 will not be damaged, and the bulb replacement frequency, such as a beacon, can be reduced.

3d1 is a heat radiation (infrared) film made of a visible light reflecting infrared ray transmissive film such as a dichroic film formed on the surface of the pinch seal portion 3b11, for example, a metal oxide for forming a high refractive index film on the glass surface of the bulb 3b1. For example, a titanium oxide (TiO 2) and a metal oxide for forming a low refractive index film, for example, silicon dioxide (SiO 2), are alternately repeated, and are made of a multilayer optical interference film laminated with a predetermined layer. The reflector 3a is made of quartz glass such as quartz glass, hard glass, heat resistant synthetic resin, or a metal plate, and pinch seals are provided on the front and back surfaces of the reflectors 3a and the reflecting surfaces 3a1 and 3a2. Similar to 3b11, the heat dissipation coatings 3d2 and 3d3 are covered.

When the lamp 3 for the indicator lamp having such a configuration is energized through the cap pin 3b5, current flows through the metal foil 3b3 and the leg portion 3b4, and the filament 3b2 is heated to emit light. On the other hand, the bulb 3b1 is heated up by convection of an inert gas containing halogen therein. The pinch seal portion 3b11 at the end of the bulb 3b1 is buried in the cap bonding agent 3C in the tubular portion of the reflector 3a, but the pinch seal portion 3b11 reaches the pinch seal portion 3b11 due to radiation, conduction, or energization. Heat is transmitted to the cap bonding agent 3c6 through the heat generating film 3d1 formed on the surface of the pinch seal portion 3b11. And since this cap bonding agent 3c has become black, the heat | fever (infrared ray) of the pinch seal part 3b11 is absorbed well. The heat (infrared rays) of the cap bonding agent 3C is transmitted to the cylindrical part, but is discharged to the cylindrical part via the heat dissipation coatings 3d1 and 3d2 formed on the front and back surfaces of the cylindrical part. Therefore, the rise in the temperature of the pinch seal portion 3b11 is reduced, so that the oxidation of the metal foil 3b3 does not occur or is delayed, so that the pinch seal portion 3b11 is not damaged.

Fig. 8 is a front view showing a second embodiment of the same indicator lamp.

In the drawings, the same parts as in Figs. 3 to 7 are denoted by the same reference numerals, and description thereof will be omitted.

The present embodiment differs in that the leg portions 3b4 and 3b4 'of the filament 3b2 are not reflected on the upper half reflecting surface 3a1 and the lower half reflecting surface 3a2.

In this embodiment, the leg parts 3b4 and 3b4 'are comprised so that the junction part of the facet 3a5 may be opposed.

In more detail, it is as follows. A pair of facets 3a5 divided left and right are formed by arranging the joining portions 3a6 extending longitudinally in the center on the upper half reflecting surface 3a1 and the lower half reflecting surface 3a2, respectively. Moreover, the junction part 3a7 extending in a horizontal direction is also formed between the upper half reflection surface 3a1 and the lower half reflection surface 3a2.

And in the case of illustration, since the leg parts 3b4 and 3b4 'oppose the joining part 3a6, the shadow of the leg parts 3b4 and 3b4' mainly enters the joining part 3a6, and comprises the reflective surface. It is not substantially incident on the curved part angle. However, the leg portions 3b4 and 3b4 'may be opposed to the bonding portion 3a7.

Thus, the leg portions 3b4 and 3b4 'may be faced to any of the joint portions 3a6 and 3a7, so the degree of freedom of assembly is increased.

Fig. 9 is a front view showing a third embodiment of the same beacon lamp.

In the drawings, the same parts as those in FIG. 8 are denoted by the same reference numerals and description thereof will be omitted.

This embodiment further arranges the junction 3a8 extending in the oblique direction to the upper half reflecting surface 3a1 and the lower half reflecting surface 3a2, and doubles the number of facets 3a5. In addition, the leg parts 3b4 and 3b4 'may be opposed to the junction part 3a8.

Fig. 10 is a front view showing the fourth embodiment of the same beacon lamp.

In the drawings, the same parts as those in FIG. 8 are denoted by the same reference numerals and description thereof will be omitted.

This embodiment differs in the point that a little width is given to the junction part 3b6 'which opposes the leg parts 3b4 and 3b4'.

That is, the junction part 3b6 'forms the diffuse reflection surface or the light shielding surface between adjacent facets 3a5. If the leg portions 3b4 and 3b4 'of the filament 3b2 oppose any part of the joint portion 3ab', the problem of the shadow of the leg portions 3b4 and 3b4 'is not generated.

However, as the width | variety of the junction part 3b6 'becomes large, since the efficiency of the reflector 3b falls, it is better to be as narrow as possible.

FIG. 11 is a cross-sectional view taken along the line II-II ′ of FIG. 1 showing an optical action in one embodiment of the buried indicator lamp of the present invention. FIG.

In the drawings, the same parts as in FIG. 1 are denoted by the same reference numerals and description thereof will be omitted.

Light ray R1 emitted from light bulb 3b toward upper half reflecting surface 3a1 is reflected almost parallel to the central axis 축 -Ⅹ 'of reflector 3a and is perpendicular to color filter 4 and prism 2. Incident light. This ray R1 is refracted by the prism 2 and is projected almost in the horizontal direction.

On the other hand, the light ray R2 emitted from the light bulb 3b toward the lower half reflection surface 3a2 is reflected upward across the central axis Ⅹ-Ⅹ 'of the reflector 3a, and the color filter 4 and the prism 2 For some time obliquely. This ray R2 is refracted by the prism 2 and is projected slightly upward with respect to the horizontal line.

As described above, the light emitted from the light bulb 3b is divided into two parts by the reflections at the upper half reflecting surface 3a1 and the lower half reflecting surface 3a2. Direction, thereby satisfying the required light distribution characteristics.

12 is a light distribution characteristic diagram showing an example of a standard of light distribution characteristics in a buried label or the like.

In the drawings, the horizontal axis represents a horizontal angle (degrees), and the vertical axis represents a vertical angle (degrees). The straight line m represents the chief pristine linear line, and the straight line s represents the 10% optical prismatic line, respectively.

This standard requires that the minimum average luminous intensity is 200 Cd and the minimum luminous intensity is 100 Cd in the angular range (horizontal angle ± 100, vertical angle 1 to 8 °) surrounded by the chimney column m. In addition, it is required that the minimum luminous intensity within the angular range (horizontal angle ± 160, vertical angle 0 to 13 °) surrounded by the 10% photocolumn line s be 20 Cd.

According to the buried cover etc. of the present invention, an example of the standard of light distribution characteristics shown in FIG. 12 can be easily satisfied.

The base stage B will be described again with reference to FIG. 11. 11 is an inner circumferential end, 12 is a standing wall, 13 is a central recess, and 14 is an installation hole. In addition, although not shown, the power cable introduction hole is formed in the side surface of the base stand B. As shown in FIG.

The inner circumferential end portion 11 supports the periphery of the back body 1 in order to install the buried indicator light A slightly off the bottom surface of the back body 1.

The standing wall 12 surrounds and protects the side of the buried indicator light A. FIG. The base B is embedded in the road surface G to the upper end of the standing wall 12.

The central recess 13 is used for tightly storing the back body 1 through the 0 ring 15 and for carrying out the necessary electrical wiring (not shown) for the indicator lamp A.

Fig. 13 is a plan view of the lower lamp body in one embodiment of the buried indicator lamp of the present invention.

As can be seen with reference to FIG. 13, the lower body 1b has a plate shape having a flange portion 1b1 on the outer circumference, and the permeation hole 1b2 formed in the flange portion 1b1 is the lower body body 1b. ) Is to be installed in the upper body 1a. In addition, the perforation hole 1b3 is for providing the upper lamp 1a to the lower lamp and the base B. FIG.

And between the lower isomer 1b and the base B is liquid-tight by the 0 ring 15.

It is a top view of the base stand in one Embodiment of the buried indicator light apparatus of this invention.

In the figure, 17 is an installation hole for installing the lower lamp body 1b. Then, for example, the lower back body 1b and the base B are attached and detached freely through the mounting holes 17 by fixing means such as bolts.

It is a top view which shows the curved body for a curved road surface used for the embedding indicator lamp device which shows one Embodiment of this invention. This curved part is installed in a curved corner of a runway or an induction path, and a pair of light-emitting grooves 1d are arranged at an angle of about 150 ° which is narrower than an angle of 180 ° on a plane. The four mounting holes 1g for attaching to the upper lamp 1a, the lower lamp 1b, and the base B formed in the periphery are formed at the same position as the arrangement of the straight lamps. In addition, the other structure is the same as that of a straight body surface isomer. In the prior art, since the mounting holes provided for the foundation stages were formed at different positions by the straight line surface or the curved surface facet, the foundation stages had to be manufactured. In addition, since other mounting holes must be formed exclusively for the backbody, when the cost of the backbody and the foundation stand increases and the construction is carried out on the road surface, the selection must be made in consideration of the foundation foundation that matches the backbody. There was a risk of trouble. On the other hand, in the same configuration as the present invention as described above, since the mounting holes 1g provided to the base B are formed at the same position for both the straight path surface and the curved path surface, It can be used in common and the manufacturing cost can be reduced by that much. Moreover, when constructing on the road surface, it is not necessary to consider the exclusive foundation which matches with the back, and the constructability improves.

The buried indicator lamp and the buried indicator lamp device of the present invention can be substituted in the range showing the effects of the invention in place of the bulb 3b, and the bulb L1 described in FIGS. 16 to 21 can be used. Can be.

FIG. 16 is a front view showing a second embodiment (single-sealed halogen bulb) of the bulb of the buried indicator lamp and buried indicator lamp device of the present invention, and FIG. 17 is a portion cut along the arrow aa line in FIG. An enlarged cross section of the. 21 is a cylindrical bulb made of quartz glass, and 22 is a pinch seal portion formed at one end of the bulb 21. Numeral 23 denotes a metal foil made of molybdenum (Mo) foil or the like in a seal member sealed in the pinch seal portion 22, and 24 denotes a coil-shaped filament disposed inside the bulb 21. The coil-shaped filament 24 is a coil-shaped portion 25 that forms a light-emitting source formed by winding a tungsten (W) wire in a large circular or circular shape, and is folded at right angles at both ends of the coil-shaped portion 25. It consists of the leg part 26 extended by bending.

In addition, two support wires 27 made of high melting point metal wires such as tungsten (W) and molybdenum (Mo) are added to the leg portion 26, respectively, and the leg portion 26 and the support line 27 are provided. 3 is integrated by fixing with a subcoil 28 coiled in a nearly dense pitch consisting of a line such as tungsten wire or molybdenum (Mo). The protruding portion where the subcoils 28 at both ends of the support line 27 are not coiled is formed with a bent portion 29 which is bent so as not to be parallel to the leg portion 26.

And the leg part 26 to which this sub coil 28 was coiled acts as an inner conducting wire, and the front end is welded to the metal foil 23 hermeticly attached to the pinch seal part 22 of the bulb 21 end. It is connected by such means. Moreover, the cap pin 30 is connected to the other end side of both metal foils 23. 31 in the figure is an exhaust pipe installed at the other end of the bulb 21.

The bulb 21 is filled with about 3 atmospheres of inert gas (Ar 90 volume%, remaining portion N) containing halogen (CH ₂ Br ₂ ... 400 ppm).

Although not shown in Fig. 16, the pinch seal portion 22 of the bulb 21 is connected with a cap such as BA15d type with a positioning ring via a heat resistant adhesive to complete a halogen bulb.

This halogen bulb L1 has a rating of 6.6A100W, for example, and the configuration (coil data) of the coil-shaped filament 24 is a diameter of about 0.22 mm (MG about 150) and a long diameter x short diameter. It is about 3.1 mm x 1.3 mm flat (small plate-shaped large circular shape), and the short coil-shaped portion 25 having a light emitting portion of about 4 · 8 mm wound with a% pitch of about 180% and a length of about It consists of a leg 26 of 13 mm.

In addition, two support wires 27 made of a tungsten wire having a wire diameter of about 0.22 mm (MG about 150) and a length of about 9 mm are added to the leg part 26, respectively, and the leg part 26 and the support are provided. The three of the wires 27 are integrally fixed to a tungsten wire having a wire diameter of about 0.14 mm (MG about 60) with a subcoil 28 coiled over a length of about 7 mm at a nearly dense pitch. The length of the bent portion 29 at both ends of the support line 27 is about 1 mm.

When the cap (not shown) of the bulb L1 having the above configuration is mounted on the socket (not shown) and energized, the current flows through the external conductor 31, the metal foil 23, and the leg part 26. The coil portion 25 of 24 emits light and lights up.

The light bulb L1 is provided with two support wires 27 respectively attached to the leg portion 26 even when the light bulb L1 is subjected to vibration or shock regardless of whether it is lit or not lit, so that the subcoil 28 is coiled and integrated. Since it reinforces, it has high shock resistance and impact resistance. In addition, since the support line 27 is parallel to the proximal end of the narrow leg portion 26, the electric bulb L1 increases the current capacity and the heat capacity, thereby reducing the resistance of the leg portion 26, thereby reducing the leg portion. The temperature of the pinch seal portion 22 and the pinch seal portion 22 can be reduced, and thermal distortion occurring in the pinch seal portion 22 and oxidation of the metal foil 23 advancing through the cap pin 30 are reduced to prevent the pitch seal portion ( It is possible to improve the quality of the bulb (L1) by acting electrically and mechanically, such as to prevent breakage or leakage of 22).

Moreover, as shown in FIG. 17, this leg part 26 and the two support lines 27 hold | maintain mutually reliably, without deviating position in the relationship of the substantially triangular contact with each other, and can be hold | maintained firmly. The coiling of the subcoil 28 has three coils, for example, compared to a narrow wire, which is narrow in diameter, so that the coiling diameter becomes larger and easier to wind, and the sub-coil 28 having a thicker wire diameter is assured. Can be coiled. Moreover, since it is a substantially triangular shape, the winding force at the time of coiling the subcoil 28 can be distributed equally, and work can be performed easily. Further, the bent portion 29 at both ends of the support line 27 is before and after the sealing with the bulb 21 (the lower part is buried in the pinch seal portion 22 in Fig. 16) so that the support line 27 comes out. It can prevent and reinforcement surely. In addition, the wire diameter of the subcoil 28 is preferably 0.5 to 1.2 times the wire diameter of the leg portion 26 of the filament 24. If the wire diameter of the subcoil 28 is less than 0.5 times the wire diameter of the leg 25 of the filament 24, the force for reinforcing the leg 26 by the subcoil 28 is weak and a disconnection occurs. In addition, when 1.2 times the wire diameter of the leg part 26 is exceeded, a substantially triangular shape cannot be formed, and the support line 27 and the leg part 26 become the diameter so large that it is easy to fall out of the sub coil 28, and it winds up It takes effort.

Fig. 18 compares the impact strength between the light bulb (halogen light bulb L1) according to the present invention and the conventional halogen light bulb (the difference in the configuration between the halogen light bulb l1 of this embodiment does not have a support line 27). It is a figure which shows one result. The test examined the disconnection of the filament leg when both halogen bulbs were attached to the sockets to impart a horizontal impact (peak value).

In Fig. 18, the horizontal axis represents the horizontal impact (G) value (peak value), the vertical axis represents the breakage rate (%) of the leg portion, and the ○ mark represents the halogen bulb L1 according to the present invention, and the x represents a conventional halogen bulb. As can be seen from FIG. 18, the impact resistance of the halogen bulb L1 of the present invention is improved.

Table 1 also shows various characteristics of the halogen bulb L1 in which the support line 27 is added to the leg portion 26 of the present invention, and the halogen bulb coiled only in the conventional subcoil.

Halogen bulb (L1) of the present invention was confirmed that compared to the halogen bulb of the conventional structure can reduce the power consumption (W) by about 4%, the efficiency (Lm / W) is about 4% higher various properties can be improved. . There was also no change in lifespan.

Lamp current (A) Power Consumption (W) Total luminous flux (Lm) Efficiency (lm / W) Invention 6.6 100.8 2340 23.3 Conventional 6.6 104.8 2360 22.5

In addition, the number of support wires 27 added to the leg part 26 of the filament 24 is not limited to two, and one or more may be sufficient, and in the case of multiple, the cross section is the above substantially triangular shape or substantially pentagonal shape. What is necessary is just to select the number or external diameter so that it may become a phase. Therefore, for the bulb without the subcoil 28, the halogen bulb which achieves high shock resistance and impact resistance and the temperature reduction of the pinch seal portion 22, compared with the conventional bulb in which the subcoil was originally coiled on the leg portion 26. (L1) is obtained.

19 to 21 show a third embodiment of the bulb of the buried indicator lamp and the buried indicator lamp device of the present invention, and FIG. 19 (a) is an enlarged front view of a main part and FIG. 19 (b). 20A is a plan view of a portion cut along the arrow bb line in FIG. 19A, FIG. 20A is an enlarged front view of a main part, and FIG. 20B is an arrow cc line in FIG. 20A. Therefore, sectional drawing of the cut | disconnected part, FIG. 21 (a) is an enlarged front view of a principal part, and FIG. 21 (b) is sectional drawing of the cut part along the arrow dd line of FIG. In the drawings, the same parts as in Figs. 16 and 17 are denoted by the same reference numerals and description thereof will be omitted.

19 to 21 are enlarged views of coiled portions of the leg portion 26 and the support line 27 of the filament 24 with the subcoil 28, and FIG. 19 shows the one support line 27. ), One support line 27 is added to the leg portion 26, and the subcoil 28 is coiled. The cross section has a large circular shape of the subcoil 28, and since the subcoil 28 tightly tightens the leg 26 and the support line 27 to securely support each other without shifting the positions thereof, it can be maintained firmly. have.

In Fig. 20, the support line 27 protruding from the subcoil 28 is formed with a bent portion 29 that is completely folded (about 180 degrees). In this case, even if the coiling of the subcoil 28 is loose, the support line 27 does not come out of the subcoil 28.

21 deforms the final turn of the subcoil 28 and crushes the circle outward to form, for example, a triangular shape and sticks the leg 26 and the support line 27 sharply. . In this case, the subcoil 28 is in a tightly tightened state where the leg portion 26 and the support line 27 are strongly pressed. The pointed jing 32 is not limited to the final end turn of the subcoil 28, but may be an intermediate turn, or may be one or more turns, and the shape of the pointed jing 32 is not limited to a triangular shape. . Therefore, in the case of FIGS. 19 to 21, the leg portion 26, the support line 27 line, and the subcoil 28 are firmly integrated to prevent the support line 27 from falling out to ensure reinforcement. can do.

Further, the halogen bulb may be both sealed type provided with a pair of pinch seal portions at both ends of the bulb. In the case of the structure, the filament in the bulb has a straight shape including a coil portion and a leg portion. In addition, the cap of the pinch seal part is an R7s type made of cylindrical ceramics having a metal terminal therein, and is joined to the end face of the pinch seal part through a heat resistant adhesive. Sub legs having the same configuration as described above may be coiled to the respective leg portions. This halogen bulb also exhibits the same effects as those of the above-described embodiment.

In addition, a bulb is not limited to the said embodiment. For example, the type of light bulb is not limited to a halogen light bulb, and may be an infrared light bulb containing only an inert gas containing no halogen. The seal portion formed at the bulb end of the bulb is not limited to a pinch seal, and may be a seal portion formed by shrinking the bulb, and the seal member is not limited to a metal foil made of molybdenum foil, and is linear such as tungsten foil or molybdenum tungsten. The upper member may be used. The glass material of the bulb is not limited to quartz glass, and other hard glass materials may be used as long as they share desired light transmittance, light refractive index and heat resistance. The filament leg and the support line may be inserted into a sub-coil which is wound beforehand and fixed integrally. According to the light bulb of the above embodiment, a support line is added and reinforced to the leg portion of the filament to provide a light bulb having improved quality and various characteristics while reducing the occurrence of pinch seal portion breakage or leakage while enhancing the shock resistance and impact resistance. Can be. In addition, there is an advantage that the leg portion and the support line can be firmly fixed and the coiling operation of the subcoil can be easily performed.

According to the invention of claim 1, the height of the vertical direction can be reduced by cutting the upper and lower portions of the open end side of the reflector, and a wide angle of light distribution can be obtained. By using, it is possible to satisfy desired light distribution characteristics in a buried label or the like.

According to the invention of claim 2, in addition to the effect of claim 1, the shadow of the leg portion is curved on the radial surface by opposing the leg portion of the filament of the bulb to the junction extending from the top side to the open end side between the adjacent different curved portions. Since there is no incident on the light emitting device, a buried sign or the like having less loss of effective light amount can be provided.

According to the invention of claim 3, in addition to the effect of claim 1, the support line is added and reinforced to the leg portion of the filament to increase the shock resistance and impact resistance, and at the same time, the quality and various characteristics of the pinch seal portion are less likely to break or leak. Improved buried beacons can be provided.

According to invention of Claim 4 or 5, in addition to the effect of Claim 1, since the temperature of the seal part of an electric bulb falls, the buried type | mold lamp etc. which can suppress an electric bulb destruction can be provided.

According to the invention of claim 6, it is possible to embed the base in advance on the road surface, and at the same time can provide a buried indicator lamp device having the effect of claims 1 to 5.

According to the seventh aspect of the present invention, in addition to the effects of the sixth aspect, the base can be commonly used for two types of buried markers, such as a straight line and a curved line, thereby providing comprehensive costs including manufacturing, construction, and inventory management of parts. Can be reduced. Moreover, when constructing on a road surface, it is not necessary to consider the exclusive base which conforms to a back body, and constructability improves.

Claims (7)

An equivalent body having a light emitting groove disposed on an upper surface thereof and having an inclined upward direction and an inner space communicating with the light extracting groove; A light path regulating prism disposed intimately between the light-emitting grooves and the inner space of the lamp body; And Bulb, a light bulb having a filament sealed in the bulb and a leg connected to the filament, and disposed optically opposite to the light bulb so that the opening end faces the prism and the opening end side top and bottom portions are cut almost parallel to the optical axis. A buried indicator lamp comprising a lamp for a indicator lamp having a reflector. The method of claim 1, The leg portion of the bulb includes a reflective surface having a different shape, and is disposed opposite to a junction portion of the reflector, which is formed between adjacent adjacent curved portions and has a junction portion extending from the top side to the open end side. Type lights. The method of claim 1, A buried indicator lamp, wherein a support line is added to the leg of the bulb and a subcoil for fixing the support line and the leg is disposed. The method of claim 1, A buried indicator lamp, characterized in that the heat dissipation means is formed on the top surface of the reflector. The method of claim 1, A buried indicator lamp, wherein a light bulb is fixed to the top of the reflector by a heat absorbing adhesive. A buried marker lamp according to any one of claims 1 to 5; A base having a tomography part for supporting a periphery of a buried mark and the like and a recess for accommodating the buried mark and the like; And The buried beacon lamp device, characterized in that the fixing means for detachably fixing the buried beacon lamp to the base. The lamp body according to any one of claims 1 to 5, having a plurality of mounting holes provided at the periphery, and having a pair of light-emitting grooves for straight road surfaces or curved road surfaces. ; Supporting the periphery of the buried mark, etc., at the same time having an end having a common mounting hole corresponding to any of the mounting holes, such as for the straight road surface and curved road surface, and a recess for accommodating the buried mark, etc. Foundation base embedded in the road surface; And A buried indicator lamp device comprising: a fixing means for freely attaching or detaching a buried indicator lamp for a straight road surface or a curved road surface by a mounting hole to a base stand freely.