JPH05280018A - Embedded type beacon light - Google Patents

Abstract

PURPOSE:To reduce the thickness and diameter of a beacon light body while a high load resistance and a large volume inside space are ensured for the beacon light body. CONSTITUTION:A disk-like beacon light body 12 is attached to a substantially cylindrical bottomed base 16 by means of an annular holding frame 14 so as to form an embedded type beacon light 11. A disk-like upper light body 21 and a ring-like lower light body 22 are vertically fixed together by means of screws 58 so as to constitute the beacon light 12. An optical system O composed of a light L and an annular lens G is stored in a space A within the beacon light body 12. Leg-like parts 53 projected from the upper light body 21 into the space A abuts against pillar receiving parts 31 in the lower light body 22. A guide light beam is emitted through a light emitting aperture in the upper light body 2. Blind nuts N piercing through insertion holes 48 in the upper light body 21 are screwed onto bolts B planted to the base 16 so as to be locked to a locking stepped part 34 of the lower light body 22, and the beacon light body 12 is fixed to the base 16.

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 installed on a road surface such as an airport and a road.

[0002]

2. Description of the Related Art Conventionally, for example, JP-A-60-73906.
As shown in Japanese Patent Laid-Open Publication No. Gazette, there is known an embedded marker light installed on a road surface such as an airport runway or taxiway.

This embedded marker lamp has a substantially cylindrical base embedded in the road surface, an annular holding frame mounted on the upper part of the base, and an upper side of the holding frame mounted on the side of the base. And a substantially disc-shaped marker lamp main body provided with a light-transmitting window on one side, and an optical system including a lamp and a lens is housed inside the marker lamp main body.

[0004]

However, in the embedded type indicator lamp having the above-mentioned conventional structure, in order to make the protruding portion to the ground smaller, it is possible to maintain the strength of the indicator lamp body and make it thin. There is a problem that it is difficult to form a large internal volume for accommodating the optical system when the size and size are reduced.

The present invention has been made in view of the above points, and it is possible to reduce the thickness and size of the marker lamp body while maintaining strength, and to secure a large volume space inside the marker lamp body. It is an object of the present invention to provide an embedded marker light that can be operated.

[0006]

An embedded type indicator lamp of the present invention comprises a base that is embedded and installed, and a marker lamp main body attached to the base. The marker lamp main body has an upper portion. A space formed by fixing a lamp body and a lower lamp body and provided between the upper lamp body and the lower lamp body to accommodate an optical system having a lamp, and a translucent light for irradiating the irradiation light of the lamp to the outside. window,
And around the lamp in the space, and provided in a portion other than a line connecting the lamp and the light-transmitting window,
A columnar portion that supports the upper lamp body by the lower lamp body is provided.

[0007]

In the embedded marker lamp of the present invention, the upper lamp body and the lower lamp body are fixed to each other to form the marker lamp body, and the space portion is formed between the upper lamp body and the lower lamp body. Even if the lamp main body is made thin and its diameter is small, a large volume space is easily formed inside the marker lamp main body. Therefore, the main body of the marker lamp is reduced in weight, and an effective optical system including a lamp having a predetermined volume is housed in this space.
The optical characteristics are improved. Further, since the columnar portion that supports the upper lamp body by the lower lamp body is provided in the space portion of the marker lamp body,
The load bearing capacity of the marker lamp body is improved, and the size of the space can be increased. Further, since the columnar portion is provided around the lamp and on a portion other than the line connecting the lamp and the light transmitting window, it does not affect the optical system.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the embedded marker lamp of the present invention will be described below with reference to the drawings.

In FIG. 1 to FIG. 3, reference numeral 11 designates an embedded marker light which is embedded in a road surface such as an airport runway or taxiway. The embedded marker light 11 includes a lamp L, a lens G and the like. Via a ring-shaped holding frame 14, a substantially disk-shaped marker lamp main body 12 in which an optical system O composed of
It is configured to be detachably attached to a base 16 having a substantially cylindrical shape with a bottom.

The marker lamp body 12 is composed of an upper lamp body 21 having a substantially disc shape and a lower lamp body 22 having a substantially annular shape, which are vertically fixed to each other.

As shown in FIGS. 1 to 4, the lower lamp body 22 has a substantially disk-shaped base plate portion 26 having an opening 25 forming a space A in the center thereof, and this opening. A tubular portion 28 protruding downward from the periphery of the portion 25 is formed integrally with the tubular portion 28, and an annular step portion 29 is formed on the outer periphery of the upper end of the tubular portion 28. The pair of column receiving portions 31, 31 facing each other toward the inside of 25 and the column receiving portions
A pair of screw receiving portions 32, 32, which are opposed to each other in a direction perpendicular to the line connecting 31, 31, are provided in a protruding manner.

Further, locking holes 34 as vertically-locking locking portions are formed at three locations near the outer peripheral portion of the base plate portion 26, and the locking holes 34 are located closer to the inner peripheral portion than the respective locking holes 34. Where
A lamp body locking hole 36 that constitutes a fixing portion is formed so as to penetrate vertically. Each of the locking holes 34 is formed such that the upper portion thereof has a larger diameter than the lower portion thereof via the locking step portion 34a as a concave portion facing upward. Also, each lamp body locking hole
Each of the 36 is formed such that its lower portion has a diameter larger than that of its upper portion via a locking step portion 36a facing downward.

Further, screw holes 38 are formed in the lower surfaces of the column receiving portions 31, 31 and the screw receiving portions 32, 32, respectively.

A flange portion 40 is provided so as to project inward from the lower portion of the tubular portion 28, and a thread groove 41 is threaded on the outer peripheral portion of the lower portion of the tubular portion 28.

Then, each lamp body locking hole 36 on the lower surface of the base plate portion 26
At the inner peripheral position, the lower end of the tubular portion 28, and around the opening 25 on the upper surface of the substrate portion 26, annular recessed grooves f1,
f2 and f3 are formed, and annular packings p1 and p2 are fitted in the concave grooves f1 and f2, respectively.

Further, as shown in FIGS. 1 to 3, 5, and 6, the upper lamp body 21 is a disk-shaped member having substantially the same diameter as the lower lamp body 22, and is inclined downward on the outer peripheral portion. A tapered portion 44 is formed.

On the lower surface of the central portion of the upper lamp body 21, a space portion A having a larger diameter than the opening 25 of the lower lamp body 22 is formed.
A storage recess 46 constituting the above is formed.

Further, with the upper lamp body 21 mounted on the upper surface of the lower lamp body 22, insertion holes are formed as insertion portions which are vertically inserted at positions corresponding to the respective locking holes 34 of the lower lamp body 22.
48 are formed. The insertion hole 48 is used as the locking hole 34.
Although it is formed in a cylindrical shape having substantially the same shape as the upper part having a large diameter, it may be formed to have a larger diameter than the upper part of the locking hole 34, or, as shown in FIGS. 7 and 8, communicates with the outer periphery. It can also be formed as a cutout portion 48a.

Then, in the upper lamp body 21, screw holes 49 are formed at positions corresponding to the respective lamp body locking holes 36 of the lower lamp body 22 and forming a fixed portion having a bottom and extending upward from the lower surface. ing.
In order to secure the depth dimension, it is desirable that the screw hole 49 be provided as close to the center portion as possible within a range that does not communicate with the storage recess 46.

Further, in a state where the upper lamp body 21 is mounted on the upper surface of the lower lamp body 22, the inside of the accommodating concave portion 46 and the respective insides of the accommodating recesses 46 are respectively extended on the lines connecting the screw receiving portions 32 of the lower lamp body 22. Substantially fan-shaped light transmitting windows 51, 51 communicating with the outer surface of the tapered portion 44 are formed. When the embedded marker lamp 11 is installed on the curved part of the taxiway or when a wide angle of irradiation is required, as shown by the two-dot chain lines 51a and 51a in FIG. Can be formed at a predetermined angle with respect to the lamp L located substantially at the center of the marker lamp body 12, or can be formed in a wide-angle shape.

Further, a pair of columnar portions 53, 53 are provided in the housing recess 46 of the upper lamp body 21 so as to face each other in the direction perpendicular to the line connecting the translucent windows 51, 51. Then, each columnar portion 53,
The lower end portion of 53 does not project below the upper lamp body 21, and in the state where the upper lamp body 21 is mounted on the upper surface of the lower lamp body 22, the pillar receiving portions 31, of the lower lamp body 22, It comes in contact with 31. The outer surface of each of the columnar portions 53, 53
53a, 53a are arc-shaped concentric with the inner peripheral surface of the storage recess 46, and are inclined surfaces facing downward.

The inner peripheral surface of the storage recess 46 and the column receiving portion
An annular lens G forming the optical system O is fitted between the outer surfaces 53a, 53a of the 31, 31, and the upper lamp body 21 and the lower lamp body 22 are
The lower surface of the lens G is supported by the upper surface of the substrate portion 26 of the lower lamp body 22 when mounted on the upper surface of the lens. Further, annular gaskets g1 and g2 made of silicon rubber or the like are adhered to the upper and lower surfaces of the lens G, respectively. And, these gaskets g1 and g2 are ring-shaped with a substantially L-shaped cross section, respectively, in order to improve the adhesiveness,
A plurality of protrusions and recesses are formed in each. It should be noted that a plurality of recessed lines are formed on the upper surface of the storage recess 46 so as to fit into the protrusions and recesses of the gasket g1. In addition, the protrusion on the bottom surface of the gasket g2 is
It is adapted to be fitted in the concave groove f3 formed on the upper surface of the.

In this way, with the upper lamp body 21 mounted on the upper surface of the lower lamp body 22 and holding the lens G, four screws 58 are provided.
Are respectively inserted into the lamp body locking holes 36 of the lower lamp body 22 from below, are screwed into the screw holes 49 of the upper lamp body 21, and the screw 58
Lock the locking step 36a with the screw head 58a of the
And the lower lamp body 22 are firmly fixed to each other.

In the lower part of the opening 25 of the lower lamp body 22,
Screw holes 38 formed in the column receiving portions 31, 31 and the screw receiving portions 32, 32
A mounting plate 64 is supported via a position adjusting mechanism including a bolt 61 that is screwed into the, a spring body 62, and the like.
The lamp L is attached to the lamp socket 65. Further, the mounting plate 64 is provided with a reflecting mirror M that optically opposes the lamp L and guides the light rays emitted by the lamp to the translucent windows 51 and 51, and a filter (not shown).

Further, the opening at the lower end of the tubular portion 28 of the lower lamp body 22 is closed by a cover body 67 made of a stainless plate or the like. Then, the cover body 67 is attached in a state where the end portion is pressed against the lower end portion of the tubular portion 28 by an annular nut body 68 screwed into the thread groove 41 threaded on the outer periphery of the tubular portion 28. Has been. In addition, this cover body 67 is
A wiring device 68 including terminal portions provided over the upper and lower surfaces of 67 is provided.

The marker lamp body 12 having the above-described structure is detachably attached to the bottomed substantially cylindrical base 16 via the substantially annular holding frame 14 and embedded. The type indicator lamp 11 is configured.

That is, the base 16 is buried in various positions on the road surface such as a runway or taxiway of an airport, and a flange portion 16a inwardly projects from the peripheral edge of the opening at the upper end. . Then, bolts B constituting a locking tool are planted upward at three positions of the flange portion 16a.

The holding frame 14 has a substantially annular shape and has an outer flange portion 14a protruding upward from the outer peripheral portion and an inner flange portion 14b protruding downward from the inner peripheral portion. Through holes 14c through which the bolts B are inserted are formed in the base 16 at positions corresponding to the bolts B, respectively.

The holding frame 14 has the inner flange portion 14b with the bolts B inserted into the through holes 14c.
Is fitted into the opening of the base 16 and attached to the upper part of the base 16.

Further, on the upper part of the holding frame 14, the outer peripheral part is fitted to the inner circumference of the outer flange part 14a of the holding frame 14, and the annular step part 29 is fitted to the inner circumference of the inner flange part 14b of the holding frame 14. Together,
The marker lamp main body 12 is attached with the bolt B inserted in the locking hole 34 formed in the lower lamp body 22 of the marker lamp main body 12.

Then, in this state, the insertion hole of the upper lamp body 21
Via 48, a cap nut N forming a locking tool having a bottomed screw hole is screwed onto the upper part of the bolt B, and the lower end of the cap nut N locks the lower lamp body 22. Locking step of hole 34
The marker lamp main body 12 is detachably fixed to the base 16 by locking 34a.

In this state, by turning on the lamp L, it is possible to irradiate the guide light from the translucent windows 51, 51 through the lens G and the like.

According to the embedded marker lamp 11 of this embodiment, the marker lamp main body 12 is constructed by vertically fixing the upper lamp body 21 and the lower lamp body 22. Thinner,
And even if the diameter is reduced, the storage recess 46 of the upper lamp body 21 and the lower lamp body
A space A having a large volume can be formed inside the marker lamp body 12 by the openings 25 of 22. Therefore, an effective optical system O including a lamp L having a predetermined volume, a lens G, etc. can be housed in this space portion, the optical characteristics can be improved, and the space portion A makes the marker lamp body 12 lightweight. Can be converted.

A columnar portion is formed in the storage recess 46 of the upper lamp body 21.
Since 53, 53 are formed and abutted on the pillar receiving portions 31, 31 of the lower lamp body 22, the load bearing capacity of the marker lamp main body 12 can be improved, a large space portion A is formed inside, and the marker lamp main body 12 is also formed. Can be thinned. Further, since the columnar portions 53, 53 are formed in a surplus space not used in the optical system O, that is, in a direction perpendicular to the irradiation direction of the lamp L in which the transparent windows 51, 51 are formed, the columnar portions 53, 53 are affected. Neither is given, nor does the indicator light body 12 increase in size.

A screw hole 49 into which a screw 58 to be engaged with the lower lamp 22 is screwed is formed in the vicinity of the central portion of the upper lamp 21, that is, in the radially inner portion having a large thickness. Since it is formed, a large depth dimension of the screw hole 49 can be secured, and the upper lamp body 21 and the lower lamp body 22 can be firmly fixed to each other.

Then, in this way, the upper lamp body 21 and the lower lamp body are
Since 22 and 12 are firmly fixed, if only the lower lamp body 22 is fixed to the base 16, the marker lamp body 12 including the upper lamp body 21 and the lower lamp body 22 is firmly fixed to the base 16. be able to.
Therefore, a cap nut N for fixing the marker lamp body 12 to the base 16
Can be locked in the locking step portion 34a recessed in the lower lamp body 22 while being housed inside through the insertion hole 48 formed in the upper lamp body 21, so that the cap nut N is The marker lamp body 12 can be made thin without protruding to the outside of the body 12, and the outer shape can be made into a smooth tapered shape.

As described above, the outer diameter can be reduced and the height of protrusion to the ground can be suppressed while ensuring the volume of the space inside the marker lamp body 12.

Further, the outer side surfaces 53a, 53a of the columnar parts 53, 53, respectively.
Is an inclined surface that faces downward, so the lens G
And gaskets g1 and g2 fitted over and under the lens G
Can be easily mounted, the assembling time of the marker lamp body 12 can be shortened, and the die can be easily removed at the time of manufacturing.

The lens G and the gaskets g1 and g2 can seal the translucent windows 51 and 51 to improve the airtightness.

In the embedded marker lamp 11 of the present embodiment, the screw hole 49 as the fixing portion is provided outside the storage recess 46.
A threaded hole having a bottom is formed on each of the columnar portions 53, 53 to form a fixed portion,
The through hole formed in the column receiving portions 31, 31 of the lower lamp body 22 is inserted into this screw hole, and a screw 58 that is locked to the lower surface of the column receiving portions 31, 31 is screwed into the upper lamp body 21. The lower lamp body 22 and the lower lamp body 22 can be fixed to each other.

In the embedded marker lamp 11 of this embodiment, the upper lamp body 21 has the insertion hole 48 through which the cap nut N is inserted, but the upper lamp body 21 is provided with the lower lamp body 22. It is also possible to form a locking hole similar to the stop hole 34 and attach the marker lamp body 11 to the base 16 through this locking hole.

The reflecting mirror M and the filter can be omitted if necessary.

[0043]

According to the embedded marker lamp of the present invention, the upper lamp body and the lower lamp body are fixed to each other to form a marker lamp body, and a space is provided between the upper lamp body and the lower lamp body. Since it is formed, even if the marker lamp main body is made thin and its diameter is reduced, it is possible to easily form a space portion having a large volume inside the marker lamp main body. Therefore, the main body of the marker lamp is reduced in weight, and an effective optical system including a lamp having a predetermined volume is housed in this space to improve the optical characteristics.
Further, since the columnar portion for supporting the upper lamp body by the lower lamp body is provided in the space portion of the marker lamp main body, the load resistance of the marker lamp main body is improved and the size of the space portion can be enlarged. Furthermore, since the columnar portion is provided around the lamp and on a portion other than the line connecting the lamp and the light-transmitting window,
It does not affect the optical system.

[Brief description of drawings]

FIG. 1 is a cross-sectional view taken along the line I-I of FIG. 3 showing an embodiment of the embedded marker lamp of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG. 3 showing the embedded marker lamp of the above.

FIG. 3 is a plan view of the embedded marker lamp of the above.

FIG. 4 is a plan view of the same upper and lower lamp body.

5 is a sectional view taken along line III-IV of FIG. 3 showing the upper lamp body.

6 is a sectional view taken along line III-V of FIG. 3 showing the upper lamp body of the same.

FIG. 7 is a plan view of an upper lamp body showing another embodiment of the embedded marker lamp of the present invention.

FIG. 8 is a plan view in which a part of the upper lamp body is cut away.

[Explanation of symbols]

 11 Embedded type indicator lamp 12 Indicator lamp body 16 Base 21 Upper lamp body 22 Lower lamp body 51 Translucent window 53 Columnar section A Space section L Lamp O Optical system

Claims (1)

[Claims] 1. An embedded base, and a marker lamp main body attached to the base, the marker lamp main body having an upper lamp body and a lower lamp body fixed to each other. Provided between the upper lamp body and the lower lamp body, a space portion for housing an optical system having a lamp, a translucent window for irradiating the irradiation light of the lamp to the outside, and the space portion around the lamp, An embedded signboard lamp, which is provided on a portion other than a line connecting the lamp and the translucent window and has a columnar portion that supports the upper lamp body by the lower lamp body.