JPH11343611A - Embedded type indicator lamp and embedded type indicator lamp device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an embedded type indicator lamp and an embedded type indicator lamp device in which the executability of different kinds of lighting bodies can be enhanced. SOLUTION: An embedded type indicator lamp whose outer contour is nearly in a circular shape is provided with four fitting holes 1g provided to the circumferential periphery thereof, a lighting body 1 provided with an internal space communicating with a pair of light emitting grooves 1d for a straight road or for a curved road arranged on the upper surface thereof and directed obliquely upward, a prism 2 for regulating optical path arranged liquid-tightly between the light emitting grooves 1d of the lighting body 1 and the internal space, and an indicator lamp opposed to the prism 2 and arranging a reflector inside the internal space of the lighting body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recessed marker light and a recessed marker light device.

2. Description of the Related Art Recessed marker lights of this type are embedded in roads such as airport runways or taxiways. According to this device, a straight road lamp having a pair of light guide grooves arranged at an angle of 180 ° on a plane is used in a straight portion such as a runway or a taxiway.
In addition, on a curved portion having a corner such as a runway or a taxiway, there is a curved road surface light body in which a pair of light-guiding grooves are arranged at an angle of about 150 ° narrower than 180 ° on a plane. in use. In a lamp body for a straight road surface or a curved road surface, mounting holes to be attached to the base are formed at different positions in the respective lamp bodies, and are fixed to the base by fixing means.

However, since the mounting holes to be attached to the base are formed at different positions by the above-mentioned lamps for straight roads or curved roads, it is necessary to manufacture bases suitable for each. In addition, since different mounting holes must be formed exclusively for the lamp body, the cost of the lamp body and the base increases accordingly. The special base must be selected in consideration of this, and there is a possibility that the construction may take time. An object of the present invention is to provide a recessed marker light and a recessed marker light device in which the workability of different types of lamps is improved.

According to the first aspect of the present invention, there are provided four mounting holes which are substantially circular in outer shape, are provided on the periphery thereof, and are provided on the upper surface for a straight road surface extending obliquely upward. A lamp body having a pair of light guide grooves for a curved road surface and an internal space communicating with the light guide grooves, and a prism for optical path regulation disposed liquid-tight between the light guide grooves and the internal space of the lamp body; And a marker lamp facing the prism and having a reflector disposed in the interior space of the lamp body. According to a second aspect of the present invention, there is provided the recessed-type marker lamp according to the first aspect, a base supporting the lamp body, and fixing means for detachably fixing the lamp body and the base via the mounting hole. It is characterized by doing. According to a third aspect of the present invention, in the recessed marker light device according to the second aspect, the reflector is a rotary type.
It has a reflecting surface in which a part of the secondary curved surface is removed along a plane substantially parallel to the axis of the rotating secondary curved surface, and supports the light bulb so that the filament is positioned at a predetermined position of the rotating secondary curved surface. And According to the first and second aspects of the present invention, desired applications such as a runway center line light, a taxiway light, and a stop line light for airport use, and a crossing sign for road use can be applied. 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. It is preferable that the reflector has a high-reflectance reflective film adhered to the inner surface of the substrate. However, when the substrate itself is made of a material having a high reflectivity, such as high-purity aluminum, it is not necessary to separately apply a reflective film. Absent. 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. According to a third aspect of the present invention, in the second aspect of the present invention, the reflector includes a reflecting surface obtained by removing a part of the rotational quadratic surface along a plane substantially parallel to the axis of the rotational quadratic surface. The bulb is supported so that the filament is located at a predetermined position on the next curved surface. The part of the reflector obtained by removing a part of the reflection surface of the rotational quadratic surface is not only cut off, but also, for example, is partitioned by a plane, and the plane does not substantially function as a reflection surface. Including things. Therefore, it is sufficient that the disabled surface of the quadratic curved surface does not substantially exist in the shape surface. In the present invention, by removing a part of the reflector, when arranging the lamp on the marker light, the height dimension corresponding to the removed portion can be shortened to make the marker lamp thinner and lighter. it can. 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. When cutting off a part of the reflector, a part of the rotation quadric surface may be cut in advance, and then the reflection film may be formed.
After a reflector is formed by forming a reflective film on the entire rotating quadric surface, the portion to be removed may be cut off 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. For this reason,
This is a mode suitable for most effectively compressing the height dimension of the marker light.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a recessed marker light device according to an embodiment of the present invention. FIG.
1 is a perspective view showing a straight road lamp used in a recessed marker light device according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. It is sectional drawing in the state attached to the stand. In the figure, the embedded marker light device includes an embedded marker light A and a base B. First,
Regarding the embedded marker lamp A, reference numeral 1 denotes a lamp body, 2 denotes a prism, 3 denotes a lamp for a marker lamp, and 4 denotes a color filter. The lamp body 1 is for a facing road surface, and is composed of an upper lamp body 1a and a lower lamp body 1b which liquid-tightly covers the lower surface of the upper lamp body 1a via an O-ring 5, and an internal space 1c is formed between the two. Is formed. On the upper surface of the upper lamp body 1a, a pair of light-guiding grooves 1d directed obliquely upward is formed in the opposite directions and 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 guide groove 1d has a flat portion 1e on the upper surface and an inclined surface 1f.
It is open across. Reference numeral 1g denotes four mounting holes for mounting the upper lamp body 1a formed in the peripheral portion to the lower lamp body 1b and the base B. The prism 2 is provided at a connection portion between the light guide groove 1d and the internal space 1c. Although the details will be described later, the marker lamp 3 is composed of a reflector 3a and a bulb 3b housed inside the reflector, and is mounted on the upper part 1a of the lamp body by a conventional method (not shown) to form a square prism 2 in the internal space 1c. , 2 are provided in opposition to each other. The color filter 4 is provided in front of the light entrance of the prism 2. The color light to be projected is determined for each installation location of the recessed marker light. Next, the base B will be described. In the figure, reference numeral 11 denotes an inner peripheral step portion, 12 denotes an upright wall, 13 denotes a central recess, and 14 and 17 denote mounting holes.
Although not shown, a power cable introduction hole is formed on the side surface of the base B. The inner peripheral step portion 11 supports the peripheral portion of the lamp body 1 for mounting the recessed marker light A slightly above the bottom surface of the lamp body 1. Standing wall 12
Surrounds and protects the side surface of the recessed marker light A. The base B is buried on the road surface up to the upper end of the upright wall 12.
The central concave portion 13 is used to house the lamp body 1 in a liquid-tight manner through the O-ring 5 and to perform necessary electric wiring (not shown) for the marker lamp A. FIG.
It is a top view of a lower light body similarly. 3, the lower lamp body 1b has a dish-like shape having a flange portion 1b1 on the outer periphery as is apparent with reference to FIG. 3, and the through holes 1b2 and 1b3 formed in the flange portion 1b1 are formed in the lower lamp body 1b. , The upper lamp body 1a and the base B are attached to each other. The lower lamp body 1b and the base B are formed in a liquid-tight manner by the O-ring 6. FIG. 5 is a plan view of the base. In the drawing, reference numerals 14 and 17 are mounting holes for mounting the upper lamp body 1a and the lower lamp body 1b. Then, the lamp body and the base are detachably fixed via the mounting holes by fixing means such as bolts. FIG.
FIG. 7 is a perspective view showing a curved road lamp used in the recessed marker light device according to an embodiment of the present invention, and FIG. 7 is a plan view thereof. The curved lamp is to be installed on a curved portion such as a runway or a taxiway, which has a curved angle, and forms a pair of light guides at an angle of about 150 °, which is narrower than 180 ° on a plane. A groove 1d is arranged. The upper lamp body 1a and the lower lamp body 1b formed in the peripheral portion
And four mounting holes 1g for mounting on the base B,
It is formed at the same position as the arrangement of the straight road lamps. The other configuration is the same as that of the straight road lamp. Therefore, since the mounting hole 1g to be attached to the base B is formed at the same position for the straight road surface and the curved road surface, the base B can be commonly used, and the manufacturing cost is reduced accordingly. Can be reduced. In addition, when installing on a road surface, there is no need to consider a dedicated base that matches the lamp body, and the workability is improved. Here, the marker lamp will be described with reference to FIG. FIG. 8 is a longitudinal sectional view showing one embodiment of the sign lamp according to the present invention. In the figure, the reflector 3a of the sign lamp 3 is composed of an upper half reflecting surface 3a1 and a lower half reflecting surface 3a2 bordering on the center axis. And the upper half reflecting surface 3a
1 comprises a plurality of facets 3a5. Each facet 35 is composed of a free-form surface approximating a paraboloid of revolution, and the free-form surface is radiated from the bulb 3b, and the upper half reflecting surface 3a
1 is set so that the light incident on 1 is reflected in a direction substantially parallel to the central axis. On the other hand, the lower half reflecting surface 3
a2 also includes a plurality of facets 3a5. Each facet 3a5 is also formed of a free-form surface that is similar to a paraboloid of revolution, and the free-form surface is radiated from the bulb 3b,
The light incident on the lower half reflecting surface 3a2 is set so as to be reflected in a direction crossing while being inclined with respect to the central axis.
Further, since the upper and lower portions of the reflector 3a on the opening end side are cut to form cut portions 3a3 and 3a4, when viewed from the front, the reflector 3a has a horizontally long shape in which the top and bottom are parallel. Furthermore, when the reflector 3a is viewed from the lateral direction, the opening end thereof is oblique, but this causes the opening end of the upper half reflecting surface 3a1 to recede to the top side from the opening end of the lower half reflecting surface 3a2. This is because the opening end of the lower half reflection surface is further obliquely receded in accordance with the opening end. On the other hand, the bulb 3b includes a cylindrical bulb 3b1 made of quartz glass, and a filament 3b2 sealed inside the bulb 3b1. And the light bulb 3b
Is arranged such that the filament 3b2 is located at a predetermined position of the reflector 3a, for example, the center of the filament 3b2 is located substantially at the focal point of the paraboloid of revolution. More specifically, the valve 3b1 has a structure in which a base end is pinch-sealed and a front end is tip-off. A pair of metal foils 3b3 are embedded in the pinch seal portion 3b11 while being separated from each other.
a pair of inner conductors 3b4, 3b from b3 into the valve 3b1.
4 'is extended. In addition, the metal foil 3b3 converts the valve 3
A pair of base pins 3b5 protrude outside b1. The inner conductors 3b4, 3b4 'are connected to both ends of the filament 3b2 to supply power to the filament 3b2 and mechanically support the filament 3b2. The filament 3b2 forms a coil that is arranged with the axis substantially coincident with the axis of the bulb 3b1. A coil is often used as a double coil or a single coil. Therefore, the inner conductor 3b4 connected to the end of the filament 3b2 on the distal end side of the bulb 3b1 extends substantially parallel to the filament 3b2. In the present embodiment, the inner conductor 3b4 is used.
Is the part 3 from which the upper part of the paraboloid of revolution of the reflector 3a is removed
a3. However, if necessary, the inner conductor 3b
4 may be disposed so as to face the joint between the upper half reflecting surface 3a1 and the lower half reflecting surface 3a2. The bulb 3b is formed of a halogen bulb in which an appropriate amount of halogen such as iodine or bromine is sealed inside the bulb 3b1. The base cement 3c is fixed to a predetermined position of the reflector 3a by cantilever support 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. doing.

According to the first and second aspects of the present invention, four mounting holes are provided in the peripheral portion of the lamp body having a substantially circular outer shape, and are disposed on the upper surface and are used for a straight road surface or a curved road surface facing diagonally upward. Since the pair of light guide grooves is formed, the mounting holes to be attached to the base are formed at the same position for the straight road surface and the curved road surface, and the base can be used in common, and Manufacturing costs can be reduced. In addition, when installing on a road surface, there is no need to consider a dedicated base that matches the lamp body, and the workability is improved. According to the third aspect of the present invention, by removing a part of the reflector, when the lamp is disposed on the marker light, the height dimension corresponding to the removed portion is shortened to make the marker lamp thinner and lighter. can do.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a straight road lamp used in an embedded marker light device according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a cross-sectional view in a state where the recessed marker light is assembled to a base.

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

FIG. 5 is a plan view of the base.

FIG. 6 is a perspective view showing a curved road lamp used in the recessed marker light device according to the embodiment of the present invention.

FIG. 7 is a plan view of the same.

FIG. 8 is a longitudinal sectional view showing an embodiment of the marker lamp according to the present invention.

[Explanation of symbols]

 A: Recessed sign lamp B: Base 1 ... Lamp body 2 ... Prism 3 ... Lamp for sign lamp

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Chino 4-3-1 Higashi-Shinagawa, Shinagawa-ku, Tokyo Inside Toshiba Litec Corporation (72) Inventor Junichi Nakajima 4-3-1 Higashi-Shinagawa, Shinagawa-ku, Tokyo No. Toshiba Litec Co., Ltd.

Claims (3)

[Claims] 1. A substantially circular outer shape having four mounting holes provided in a peripheral portion thereof, a pair of light guiding grooves for a straight road surface or a curved road surface disposed on an upper surface and directed diagonally upward and a light. A lamp body having an internal space communicating with the lead-out groove; a prism for regulating an optical path disposed liquid-tight between the light lead-out groove and the internal space of the lamp body; And a lamp for a marker light disposed in an internal space. 2. The embedded marker lamp according to claim 1, comprising: a base for supporting the lamp; and fixing means for detachably fixing the lamp and the base through the mounting hole. A recessed-type beacon light device, characterized in that: 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.
The recessed marker light device as described in the above.