JPH10252024A - Embedded marker lamp device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an embedded marker lamp device in which a lamp body can be thinned. SOLUTION: This device has an embedded marker lamp A comprising a lamp body 1 placed on the top surface of the device and having a diagonally upwardly pointed light emission groove and an inner space 1c communicated to the light emission groove 1d; a prism 2 placed between the light emission groove 1d of the lamp body 1 and the inner space 2a under a liquid-tight state, for defining an optical path; and a marker lamp 3 opposed to the prism 2 and having a reflector 3a placed in the inner space 1a of the lamp body 1. The device also includes a base B, which has a step supporting the periphery of the embedded marker lamp A and a recess storing the embedded marker lamp A, and which is embedded to serve as the reference for a road surface, and a fixing means, by which the embedded marker lamp A is freely removably fixed to the base B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embedded marker light device.

[0002]

2. Description of the Related Art This type of recessed marker light device is disclosed in
It is disclosed in JP-A-3-83303. According to this device, the opening edge portion of the marker light is provided and fixed to the holding portion provided inside the base. That is, a screw thread is formed in the holding portion, and is screwed with a screw groove formed on the outer periphery of the marker light, and the height of the marker light with respect to the road surface is adjusted according to the degree of screwing. Can be done.

[0003]

However, the above-mentioned height adjusting mechanism and the like are arranged therein by forming a space inside the base, so that the base becomes larger and the road surface becomes larger. When it is constructed on a road, it is necessary to bury it relatively deep in the road surface, and the construction may be troublesome. Further, when the height of the recessed marker light is large, boring work on the road surface for burying the marker lamp is troublesome.
In particular, airport runways and taxiways are required to be able to withstand the dynamic loads of large aircraft, and are made of thick concrete. The impact of the drilling depth for burying the marker lights on the operating cost cannot be ignored.

[0004] It is an object of the present invention to provide a recessed marker light device capable of reducing the thickness of a lamp body.

[0005]

According to the first aspect of the present invention,
A light body having a light guide groove disposed on the upper surface and extending obliquely upward and an internal space communicating with the light guide groove, and a light path regulating liquid-tightly disposed between the light guide groove and the internal space of the lamp body. A recessed sign lamp comprising a prism and a sign lamp facing the prism and having a reflector disposed in the interior space of the lamp body; and a step supporting the peripheral portion of the recessed sign lamp. And a base provided with a recess for accommodating the recessed marker light and buried so as to be a reference with respect to the road surface; and fixing means for detachably securing the recessed marker light to the base. ing.

According to a second aspect of the present invention, there is provided an upper lamp body provided on an upper surface and having a light guide groove extending obliquely upward and an internal space communicating with the light guide groove, a light guide groove and an internal space of the upper lamp body. An optical path regulating prism disposed liquid-tight between
Recessed marker lamp comprising a lamp for a marker lamp facing the prism and having a reflector arranged in the interior space of the lamp body and a lower lamp body arranged on the lower surface and closing the interior space of the lamp body A base supporting the peripheral portion of the recessed marker light and a recess for accommodating the recessed marker light, and a base buried as a reference with respect to the road surface; Fixing means for bringing at least a part of the lower lamp body into contact with the base and fixing it detachably.

According to the first and second aspects of the present invention, a road surface is bored and a base serving as a reference is embedded in the road surface in advance. The electric wiring is started up from underground through the base. The recessed marker lamp is housed in a base and fixed to the base by fixing means, for example, bolts. Then, since the present invention embeds the recessed marker light through the base, maintenance such as replacement of the lamp can be performed entirely or partially, for example, by removing the upper lamp body from the site and newly preparing the marker lamp. The indicator lamps can be replaced by all or part of them, and the removed indicator lights can be taken back from the site to the factory to take necessary measures. This recessed marker light can be applied to a desired use such as a runway centerline light, a taxiway light, a stop line light for an airport, and an intersection sign for a road. Further, the sign lamp needs to irradiate light at a small 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. Therefore, an optical path radiated from the lamp is refracted in the direction of the road surface with a prism interposed therebetween. The optical path setting means that the optical path is set in a predetermined direction, for example, as described above. The bulb is preferably a halogen bulb in terms of small high light output, but a relatively small high light output can be obtained even in a bulb filled with krypton or xenon gas, and even when a small small high light output is not required,
Allow the use of other light bulbs. Some halogen bulbs have an infrared reflective film formed on the surface of the bulb, but are suitable for the present invention because of their high luminous efficiency.

The reflector preferably has a high-reflectance reflective film adhered to the inner surface of the substrate. However, if the substrate itself is made of a material having a high reflectivity, for example, high-purity aluminum, a separate reflective film is applied. You don't have to. Further, glass or metal is suitable as the substrate. The paraboloid of revolution, a paraboloid of revolution, a spherical surface, a spheroidal surface, or the like can be used. The predetermined position of the rotational quadratic surface means a position at which a desired light distribution characteristic is obtained, and does not uniquely indicate only the focal point or the center of the rotational quadratic surface. Further, that the reflector supports the light bulb means that the light bulb is attached to the reflector, and it does not matter whether the light bulb is fixed or separable. Therefore, the light bulb may be fixed to the reflector with an adhesive or may be detachable. However, the reflector and the light bulb are relative, and include those in which the light bulb supports the reflector.

The invention described in claim 3 is the first or second invention.
In the described invention, the reflector includes a reflecting surface obtained by removing a part of the rotating quadric surface along a plane substantially parallel to the axis of the rotating quadric surface so that the filament is positioned at a predetermined position on the rotating quadric surface. Supporting a light bulb.

A part of the reflector obtained by removing a part of the reflecting surface of the rotational quadratic surface is not only cut off, but also separated by, for example, a plane, and the plane does not substantially function as a reflecting surface. Including those that have been made. Therefore, it is sufficient that the disabled surface of the quadratic curved surface does not substantially exist in the shape surface.

[0011] Thus, the present invention, by removing a part of the reflector, when installing the lamp in the sign lamp,
By reducing the height corresponding to the removed portion, the sign lamp can be made thinner and lighter. Since the disabled portion is a portion where it is difficult to make light effectively enter the prism of the marker lamp, the light amount is not substantially reduced.

In removing a part of the reflector,
The reflection film may be formed after a part of the rotational quadratic surface is cut in advance, or after the reflector is formed by forming a reflective film on the entire rotational quadratic surface, the portion to be removed is removed. The cutting may be performed by an appropriate means. In addition, the above-mentioned pre-cutting includes obtaining a structure which has already been removed from the time of molding by forming the mold of the base body with a part of the reflector cut off. Therefore, this is a mode suitable for most effectively compressing the height dimension of the marker light.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the lamp body has a pair of light guide grooves formed on both sides of the rib in different directions. A gap is formed at one end.

According to a fifth aspect of the present invention, in the third aspect of the present invention, a portion of the reflector from which a part of the quadratic curved surface is removed is opposed to substantially the upper end of the prism, and an infrared absorbing member is disposed at this portion. Established.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the fixing means for detachably fixing the recessed marker light to the base is formed on a lamp body extending in a direction in which the plurality of light guide grooves extend. Have been.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of a recessed marker light used in the recessed marker light device of the present invention, and FIG.
FIG. 2 is a cross-sectional view showing a state where the recessed-type marker lamp of FIG. 1 is assembled to a base along a line 2-2 ′ of FIG. 1.

In the figures, A is a recessed marker light, and B is a base. In the embedded marker light A, 1 is a lamp body, 2 is a prism, 3 is a lamp for marker lights, and 4 is a color filter.

The lamp 1 includes an upper lamp 1a and an upper lamp 1
A lower lamp body 1b is provided on the lower surface of a through an O-ring 5 in a liquid-tight manner, and an internal space 1c is formed therebetween.

On the upper surface of the upper lamp body 1a, a pair of light guide grooves 1d extending obliquely upward are formed in the opposite directions to be shifted from each other. The central area of the upper surface of the upper lamp body 1a is a flat portion 1e, and the periphery thereof is an inclined surface 1f. The light guiding groove 1d is open across the flat portion 1e and the inclined surface 1f on the upper surface. 1g is a mounting hole for the lower lamp 1b and the base B of the upper lamp 1a formed in the peripheral portion. Reference numeral 1i denotes a lamp pulling portion, and a mounting hole 1g.
Although they are formed in separate parts, the manufacturing cost may be reduced by forming them in the same part.

The recessed marker light A, which is provided on the lower surface and comprises a lower lamp 1b which closes the internal space 1c of the upper lamp 1a, is buried so as to be a reference with respect to the road surface G. At least a part of the lower lamp body 1b of the recessed marker light A is fixed to the base B in contact with the base B. Therefore, the heat of the lamp body 1 can be radiated to the outside via the base B, and even if the internal space 1c is smaller than that of the related art, it is possible to make it difficult to cause a thermal problem.

FIG. 3 is a sectional view of a main part showing a mounted state of the first prism of the recessed marker light used in the recessed marker light device of the present invention, and FIG. It is principal part sectional drawing which shows.

The prism 2 has a light guiding groove 1d and an internal space 1
It is arranged at the connection site with c. That is, according to FIG. 3, the prism 2 is formed by pressing the end of the prism holding metal 2a with the metal holding 2b. At this time, a rubber packing 2c is disposed between the prism 2 and the prism holding member 2a or the like to be liquid-tight. According to FIG. 4, a groove 2d is formed in the lamp body 1a instead of the metal holder 2b in FIG. This allows
The prism 2 can be securely fixed to the lamp body 1a.

The lamp body 1 has a pair of light guide grooves formed on both sides of the rib 1h formed in different directions from each other, and a gap 1h1 at one end of the rib 1h.
Are formed. According to this, the internal rib 1h structure is indispensable in order to enhance the load-bearing performance, and cannot be removed. Therefore, the end face of the rib 1h is notched, but a method of notching on the arch is employed in order to minimize a decrease in load-bearing performance. This arch-shaped structure has a function of dispersing a load from the upper surface over the entire flange of the lamp body 1 and can avoid a concentrated load. By employing this structure, the internal volume can be increased without lowering the load performance. Further, the internal space can be enlarged, so that the mounted components can be brought closer to the lamp body. As a result, the lamp body can be made thin. The thinning of the light body 1 enables post-installation on the PC version of the pavement road surface, so that it can be used when overlaying concrete pavements or when a new lighting fixture is required. Construction becomes possible with extremely low cost.

Although the details will be described later, the marker lamp 3 comprises a reflector 3a and a light bulb (not shown) housed inside the reflector, and is mounted on the upper part 1a of the lamp body by a usual method (not shown). And is disposed in the internal space 1c. Further, a reflector portion 3a1 from which a part of the rotating quadric surface is removed is formed above the reflector 3a. Then, when viewed in the optical axis direction, the upper end of the removed portion 3a1 substantially faces the upper end of the prism 2. Reference numeral 6 denotes a socket for supplying power to the marker lamp 3. By using a heat dissipating member for this portion, the internal heat dissipation can be promoted.

A part of the reflector from which a part of the quadratic curved surface is removed is opposed to a substantially upper end of the prism, and an infrared absorbing member 3b, for example, a blackened surface or an infrared absorbing film is formed on this part. Accordingly, heat is radiated to the outside through the lamp body, so that the internal space of the lamp body can be cooled, and operation failure of the lamp due to heat can be reduced.

FIG. 5 is a plan view of a base in one embodiment of the recessed marker light device of the present invention. In the drawing, a base B is constructed on a road surface so as to be a reference to a road surface G when mounting a recessed marker light A, 11 is an inner peripheral step, 12 is an upright wall, and 13 is an upright wall. The central recess 14 is a mounting hole. Although not shown, a power cable introduction hole is formed on the side surface of the base B. A plurality of grooves 12a for injecting an adhesive are formed on the side and bottom surfaces of the upright wall 12, and are fixed by this. As shown in FIG. 2, a concave surface which is a groove is provided at least on the bottom surface. With such a structure, it is possible to guide the flow of the resin adhesive, and it is difficult to generate a so-called "hole" which is generated when the adhesive is not filled. As shown in FIG. 3, the effect can be further enhanced by providing a concave surface in the vertical direction not only on the bottom surface but also on the outer peripheral surface of the base. Further, the concave or uneven shape improves the heat radiation (conduction of heat) to the road surface G, and also has the effect of reducing the temperature of each part of the marker lamp.

The inner peripheral step 11 supports a peripheral portion of the lamp 1 in order to mount the recessed marker light A slightly above the bottom of the lamp 1.

The upright wall 12 surrounds and protects the side surface of the recessed sign lamp A. The base B is buried on the road surface G up to the upper end of the upright wall 12.

The central recess 13 is provided so that the center of the lamp body 1 is O.
It is stored liquid-tight through the ring 15 and
Is used to perform necessary electrical wiring (not shown) for the Reference numeral 16 denotes a mounting hole for mounting the lower lamp 1b.

Thus, according to the present invention, since the portion 3a1 in which a part of the rotating quadric surface is removed is formed at the upper end of the sign lamp 3, the portion in which the lamp 3 is removed as compared with the prior art. It can be moved upward by the size of 3a1. That is, the embedded marker light can be made thin.

FIG. 6 is a plan view of a lower lamp body in one embodiment of the recessed marker light device of the present invention. In the figure,
As shown in FIG. 2, the lower lamp 1b has a dish-like shape having a flange 1b1 on the outer periphery, and a through hole 1b2 formed in the flange 1b1 has a lower lamp 1b and an upper lamp 1a. It is for attaching to. Also, the through hole 1b3
Is for attaching the upper lamp body 1a to the lower lamp body and the base B. Other symbols have already been described with reference to FIG. Further, it is conceivable to attach a power supply plug 1b4 to the marker lamp so that the lead wire is not used in the lower lamp body 1b. As a result, there is no need to secure a lead wire storage space between the base B and the lower lamp body 1b, and the embedded depth of the base B can be reduced, thereby improving workability. .

In addition, the recessed marker lights on the runway at the airport are electrically connected to the series. Therefore, the marker light becomes an open circuit due to the breakage of the filament, and the marker lights connected to the series are turned off. In order to avoid an open circuit due to the breaking of the filament, a film cutout is connected in parallel with the lamp of the marker light.

Since such a film cutout connection terminal block is provided, it is difficult to make the lamp body 1 thinner. It is also difficult to select a heat-resistant material for the connection terminal block of the film cutout connection terminal block. However, by connecting the film cutout to the lighting electrical plug 1b4 of the marker light, the space for the connecting terminal block for the film cutout is omitted, and the thickness of the marker light can be reduced accordingly.

FIG. 7 is a plan view showing a modification of the recessed marker light used in the recessed marker light device of the present invention. According to the figure, a mounting hole 1g, which is a fixing means for detachably fixing the recessed marker light to the base, is formed in the lamp body in the extending direction of the plurality of light guide grooves. Thereby, the internal space of the lamp body can be formed wider.

FIG. 8 is a sectional view of a main part showing a first mounting structure of a base and a recessed marker light in the recessed marker light device of the present invention, and FIG. 9 shows a second mounting structure of the same. It is principal part sectional drawing.

In FIG. 8, a recessed marker light A for realizing a double structure is provided with a sponge for fitting with a rubber packing, a contact A1 is provided therein, and a bottom surface of a base B is provided. , The base B is insulated from the electrical lead-in and the contact B1 which is protected by rubber packing and is also insulated from the base B
One of the base B-side contact and the embedded marker light A-side contact has a spring structure so that there is no interruption of electrical connection.

In FIG. 9, a recessed marker light A for realizing a double structure is provided with a sponge for fitting with a rubber packing, a contact A1 is provided therein, and a base B is provided inside the base B. A base B side, an electrical introduction portion insulated from the base B, and a connector-shaped contact B1 insulated from the base and the connector housing protected by rubber packing. And a structure in which the cover has a magnet, and when the recessed marker light A is attached to the base B, the waterproof type automatic connection contact is provided by the action of the magnet.

In any case, the thinning of the lamp body, which is a component of the recessed marker light, enables post-installation on the pavement surface of PC version, and can be used for overlay work on concrete pavement sections or newly. When a lamp that must be installed occurs, construction can be performed at a significantly lower cost than before.

FIG. 10 is a front view of a marker lamp used in the recessed marker lamp device of the present invention, and FIG. 11 is a side view thereof. In the figure, 3a is a reflector, 3b is a light bulb, 3c
Is a base cement. The reflector 3a employs a paraboloid of revolution as a quadric surface of revolution, and is divided into a radial and a concentric circle on the inner surface of a base 3a3 made of glass integrally formed with a square neck 3a2 on the top rear surface. A plurality of facets 3a4 are formed, and a high-reflectance material such as high-purity aluminum is deposited to form a reflection film 3a5.

The portion 3a1 from which a part of the rotating quadric surface of the reflector 3a is removed is realized by cutting off the portion together with the base 3a3 and the reflection film 3a5.

The light bulb 3b has a cylindrical bulb made of quartz glass and a filament sealed inside the bulb. The light bulb 3b is disposed such that the filament is located at a predetermined position of the reflector 3a, for example, the center of the filament is located substantially at the focal point of the rotating quadric surface.

More specifically, the valve has a structure in which a base end is pinch-sealed and a front end is tip-off. A pair of metal foils are embedded in the pinch seal portion at a distance from each other, and a pair of inner conductors extend from the metal foil into the bulb. A pair of base pins 3b5 protrude from the metal foil to the outside of the bulb.

The inner conductor is connected to both ends of the filament to supply power to the filament and mechanically support the filament. To further enhance mechanical support, a portion of the inner conductor can be engaged with a tip off formed at the tip of the valve.

The filament forms a coil which is arranged with the axis substantially coincident with the axis of the bulb. A coil is often used as a double coil or a single coil. Therefore, the inner conductor connected to the distal end of the filament bulb extends almost parallel to the filament, but this inner conductor faces the portion 3a1 from which a part of the rotating quadric surface of the reflector 3a is removed. Let me.

The electric bulb 3b is constituted by a halogen electric bulb in which an appropriate amount of halogen such as iodine or bromine is sealed in the bulb.

The base cement 3c is fixed at a predetermined position of the reflector 3a by cantileverly supporting the bulb 3b by fixing a pinch seal formed at the base end of the bulb 3b to the neck 3a2 in the neck 3a2 of the reflector 3a. It is fixed to.

[0048]

According to the first and second aspects of the present invention, since the base is constructed on the road surface so as to be a reference, the adjusting mechanism of the recessed marker light is used. The base and the recessed beacon can be made thinner and lighter,
Furthermore, since the boring work on the road surface during the installation of the recessed sign light is reduced, the equipment installation work cost is reduced.

According to the third aspect of the present invention, in addition to the above, the part obtained by removing a part of the rotating quadric surface of the reflector is realized by cutting off a part of the reflector, so that the height dimension of the lamp is most effective. Can be compressed.

According to the fourth aspect of the present invention, in addition, the light guide groove can be efficiently arranged.

According to the fifth aspect of the present invention, it is possible to efficiently radiate the heat inside the lamp body.

According to the sixth aspect of the present invention, the internal space of the lamp body can be increased.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a recessed marker light used in the recessed marker light device of the present invention.

FIG. 2 is a cross-sectional view showing a state in which the recessed marker light device of FIG. 1 is assembled to a base in a cross-section along line 2-2 ′ of FIG. 1;

FIG. 3 is a sectional view of a main part showing a first prism mounted state of the recessed marker light used in the recessed marker light device of the present invention.

FIG. 4 is a cross-sectional view of a main part showing a second prism attached state.

FIG. 5 is a plan view of a base in the embodiment of the embedded marker light device of the present invention.

FIG. 6 is a plan view of a lower lamp body in one embodiment of the recessed marker light device of the present invention.

FIG. 7 is a plan view showing a modified example of the embedded marker light used in the embedded marker light device of the present invention.

FIG. 8 is a sectional view of a main part showing a first mounting structure of the base and the embedded marker light in the embedded marker light device of the present invention.

FIG. 9 is a sectional view of a main part showing the second attachment structure.

FIG. 10 is a front view of an embedded marker light lamp used in the embedded marker light device of the present invention.

FIG. 11 is a side view of the same.

[Explanation of symbols]

A: Recessed marker lamp B: Base 1 ... Lamp body 1a ... Upper lamp body 1b ... Lower lamp body 1c ... Internal space 1d ... Light guide groove 2 ... Prism 3 ... Sign lamp lamp 3a ... Reflector 3a1 ... Rotation 2 Reflector part with part of the next curved surface removed

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroyuki Chino Toshiba Litec Co., Ltd. 4-3-1 Higashishinagawa, Shinagawa-ku, Tokyo

Claims (6)

[Claims] A lamp having a light guide groove disposed on an upper surface and extending obliquely upward and an internal space communicating with the light guide groove, and a liquid-tight arrangement between the light guide groove and the internal space of the lamp body. An embedded marker lamp, comprising: an optical path regulating prism and a marker lamp facing the prism and having a reflector disposed in the interior space of the lamp body; and a peripheral portion of the embedded marker lamp. A base that includes a step portion for supporting the vehicle and a recess for accommodating the recessed marker light, and is buried as a reference with respect to a road surface;
Fixing means for detachably fixing the recessed marker light to the base;
A recessed-type marker light device comprising: 2. An upper lamp body provided on an upper surface and having an inner space communicating with the light guiding groove extending obliquely upward and the light guiding groove, and a liquid-tight space between the light guiding groove of the upper lamp body and the internal space. An optical path regulating prism disposed, a marker lamp facing the prism and having a reflector disposed in the internal space of the lamp, and a lower lamp disposed on the lower surface and closing the internal space of the lamp. A recessed portion for supporting the peripheral portion of the recessed marker light and a recess for accommodating the recessed marker light, which is buried as a reference with respect to the road surface. An embedded marker light device, comprising: a base; and fixing means for detachably fixing at least a part of the lower lamp body of the embedded marker light by contacting the base. 3. The reflector has a reflecting surface obtained by removing a part of the rotating quadric surface along a plane substantially parallel to the axis of the rotating quadric surface so that the filament is located at a predetermined position on the rotating quadric surface. 2. A light bulb is supported by the light source.
Or the embedded marker light device according to 2. 4. The lamp according to claim 1, wherein a pair of light guide grooves formed in different directions are formed on both sides of the rib, and a gap is formed at one end of the rib. The recessed marker light device according to claim 1. 5. The embedding device according to claim 3, wherein a portion of the reflector from which a part of the quadratic curved surface is removed is opposed to a substantially upper end of the prism, and an infrared absorbing member is provided at this portion. Type sign light device. 6. The mounting according to claim 1, wherein the fixing means for detachably fixing the recessed marker light to the base is formed on a lamp body extending in a direction in which the plurality of light guide grooves extend. Built-in marker light device.