JPH0817048B2 - Diffused warning light - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a diffused warning light which is installed on the roof of an emergency vehicle such as a patrol car or an ambulance and which irradiates light in a flash state when an emergency occurs.

[Prior Art] This type of diffused warning light installed on the roof of a patrol car or the like has a white light source such as a halogen bulb and a reflector arranged in a globe colored red or yellow.
When an emergency occurs, this reflector is configured to rotate around the light source so that the light emitted from the light source is emitted in a flash.

As a diffused warning light of this type, there is a glove shaped cup-shaped (cylindrical) that is installed on the roof with the central axis line being vertical. However, in such a structure, it is difficult to increase the visibility because the height is high, the air resistance during traveling is large, and the number of light sources is one. Therefore, in recent years, a structure in which a glove having an elliptical cross section and having a rod shape is installed in the vehicle width direction and the height of the diffused warning light is kept low and the visibility is improved has been widely used. . In addition, the number of light sources used in the past is one, but since it is a horizontally long flat glove, there is a tendency to incorporate a plurality of (for example, four) light sources, and all of them have a predetermined number of revolutions (eg, It turns on at 160r.pm). As a reflector that rotates around a light source, the inner surface is formed in a shape in which two reflecting mirrors that form a paraboloidal reflecting surface are coupled back to back. When the vehicle is not in an emergency or when the vehicle is stopped, the reflector is stopped in the front-rear direction of the vehicle body and the light source is blinked a predetermined number of times, for example, 85 times per minute, which is commonly called hazard lighting. The switching of the lighting of the light source and the driving stop operation of the drive motor are easily performed by the switching operation of the switch installed near the driver's seat.

[Problems to be Solved by the Invention] As described above, the reflector in such a conventional flat type diffused warning light has two reflecting mirrors whose inner surfaces generally form a paraboloidal reflecting surface, which are joined back to back. Due to its shape, when the hazard lighting is on when the vehicle is stopped, etc., it is difficult to understand the blinking state from the side of the vehicle, only by irradiating the front and rear direction of the vehicle, and especially from the side of the vehicle There was a problem called.

Therefore, the present invention has been made in view of the conventional problems as described above, and an object thereof is to accurately recognize the blinking state of the light source not only from the front-rear direction of the vehicle but also from the side of the vehicle during hazard lighting. To provide a diffused warning light.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a translucent globe installed on the roof of a vehicle so as to extend long in the vehicle width direction, and A plurality of lamp units arranged in the longitudinal direction are provided, and each lamp unit has two reflecting mirrors whose inner surface forms a reflecting surface and is joined back to back. The reflectors that match each other, the light source disposed in the reflector, and the drive motor that rotates the reflector, are provided on both side walls of the reflectors of the lamp units arranged at both ends of the plurality of lamp units. A light transmitting portion is provided on a wall surface that faces the outer side of the vehicle body in the stopped state and at a portion corresponding to the light source.

[Operation] In the present invention, the reflectors located on both sides in the globe are provided with a light transmitting portion on the outer wall thereof, and the light from the light source is emitted from the light transmitting portion to the side of the vehicle body. The diffusion lens of the light transmitting portion collects and diffuses the light transmitted through the light transmitting portion.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

[Embodiment] FIG. 1 is a schematic perspective view showing an embodiment of a diffused warning light according to the present invention by disassembling a part thereof, and FIG. FIG. 3 is a plan view showing a part of the warning light similarly broken, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3, FIG. 5 is a perspective view of the lamp unit, and FIG. 6 is the same. FIG. 7 is an enlarged sectional view of a main part of the lamp body unit, FIG. 7 is a front view of the lamp body unit, and FIG. 8 is a vertical sectional view of the lamp unit. In these figures, a diffused warning light, generally designated by reference numeral 1, comprises a base plate 2 which is installed on the roof of a vehicle via mounting legs 2A. This base plate 2 is made of metal such as A1 and extends long in the width direction of the vehicle body (direction of arrow A in FIG. 1), and the mounting legs 2A are firmly attached to the lower surfaces of both ends by bolts 3 (FIG. 4). It is fixed. The mounting leg 2A is also bolt 4 on the roof of the vehicle body.
It is firmly fixed by.

The central portion of the upper surface of the base plate 2 forms a speaker mounting portion B by arranging two speakers 4 (4a, 4b) in parallel in the vehicle width direction. Elliptical side wall plates 5 (5a, 5b) extending in the front-rear direction (direction of arrow C in FIG. 1) are fixed so as to face each other. The pair of loudspeakers 4a and 4b are arranged such that the directions of their utterances are opposite to the front-back direction of the vehicle body, and these loudspeakers 4a and 4b are mounted between the pair of side wall plates 5 (5a, 5b). It is covered with a cover 6.

The cover 6 is composed of a pair of front and rear cover pieces 6a and 6b that are curved and formed in a substantially J shape in a side view. Each of the cover pieces 6a, 6b is turned upside down so that the inner side surfaces of the curved portions formed in the zigzag shape of the plurality of long hole-shaped sound emission holes 7 face each other, and the upper ends thereof are overlapped with each other, so that the side view Represents an elliptic cylinder having substantially the same shape as the side wall plate 5, and the central portion of the lower surface is open over the entire width. The overlapping upper ends 8a of the cover pieces 6a, 6b are integrally connected by a screw 9, both side edges 8b are screwed and fixed to the side wall plates 5a, 5b, and the lower end 8c is also screwed to the base plate 2. It is fixed and fixed. In FIG. 1, 10 is a screw mounting hole and 11 is a screw hole. Both side portions of the base plate 2, that is, both sides of the speaker mounting portion B respectively constitute lamp body unit mounting portions D, and these lamp body unit mounting portions D include two lamp body units to be described later.
Twelve (12A, 12B) are arranged on both sides of the secondary reflection plate 13 with the secondary reflection plate 13 interposed therebetween.

The secondary reflection plate 13 is formed into a mountain shape by bending a metal plate so that the central portion is convex toward the outside of the vehicle body in a plan view, and the outside surface is a reflection surface formed by vacuum deposition of A1 or the like.
Forming fourteen. The secondary reflecting plate 13 is erected on the base plate 2 via a bracket 15 formed in an L shape. In addition, the 2
Replacement spare valve 16 corresponding to the inner surface of the next reflector 13
Are arranged via a holder 17.

The detailed structure of the lamp unit 12 will be described with reference to FIGS. The lamp unit 12 is made of a transparent or translucent synthetic resin, and has a pulley 20 and
Reflector 21 and pulley provided on the upper surface of pulley 20
A cylindrical portion 22 protruding from the center of the lower surface of 20 is integrally formed, and the cylindrical portion 22 is rotatably supported by a vertical support shaft 24. The support shaft 24 is integrally provided on a reflector mounting base 26 fixed on the base plate 2 by screws 25 (FIG. 3).

An annular groove 27 is provided on the outer peripheral surface of the pulley 20 over the entire circumference thereof, and the annular groove 27 is provided with a friction ring 28 made of rubber or the like having a large friction coefficient and high wear resistance. The reflector 21 has two reflecting mirrors 30 whose inner surface forms a paraboloid of revolution and whose front opening has an oblong oval shape.
It is shaped like A and 30B joined back to back. Each of the reflecting mirrors 30A and 30B is then cut at its top end in a vertical plane orthogonal to the optical axis including the focus O of the inner surface of the paraboloid of revolution, and the opening edges a formed thereby are butted and joined to each other. , The focus O is a common focus. The inner surfaces of the respective reflecting mirrors 30A and 30B form a paraboloidal reflecting surface 31 by vacuum-depositing A1 and the like. In this case, the upper surface of the pulley 20 also forms a reflecting surface by vacuum-depositing A1 or the like. The central opening 32 formed in the center of the inside of the reflector 21 by cutting and abutting the rear apex of the reflecting mirrors 30A and 30B forms a light source placement portion by placing a light source 34 such as a halogen bulb. An insertion hole 35 is continuously provided at the lower end portion.

The light source 34 is a light source support member that is erected on the support shaft 24.
It is supported by 36, passes through the insertion hole 35, and is positioned in the light source placement portion 32, and the filament 34a thereof is positioned at the focus O. Therefore, the filament 34a
The parabolic reflecting surface 31 of each of the reflecting mirrors 30A and 30B
The reflected light 38 reflected by the light is emitted as a parallel light flux parallel to the optical axis of the reflector 21. Further, the light emitted from the light source 34 of the lamp unit 12 located outside the secondary reflection plate 13 strikes the reflection surface 14 of the secondary reflection plate 13 and is reflected to illuminate diagonally forward and diagonally rearward of the vehicle body.

Out of the lamp units 12, the outer lamp units 12B installed on both sides of the base plate 2 not only irradiate the light from the light source 34 in the vehicle front-rear direction in the stopped state, but also irradiate the vehicle outer side. By being formed so that it can be formed, it is partially different in configuration from the inner lamp unit 12A.

That is, as appropriately shown in FIGS. 5 to 7, the outer lamp unit 12B has an outer wall (which is different from the inner lamp unit 12A) directed toward the outer side of the vehicle body in a stopped state among both side walls. A translucent portion 41 having a circular shape in a side view is formed at a central portion of the side wall (opposite side) 40 corresponding to the light source 34.
If the reflector is formed of a transparent or transparent synthetic resin, the transparent portion 41 is masked when A1 is vacuum-deposited on the inner surface of the lamp unit 12B. It can be easily formed. Further, on the outer side surface of the light transmitting portion 41, a plurality of small fisheye lenses or diffusing lenses 42 formed of convex lenses are integrally and densely formed. On the other hand, the inner lamp body unit 12A does not have such a light transmitting portion 41 and the diffusing lens 42, and the two lamp body units 12A and 12B have different configurations in this respect.

The reflector mount 26 includes the lamp units 12
The drive motor 45 for driving the pulley 20 of the
The output shaft 46 itself or a friction wheel fixed to the output shaft is pressed against the peripheral surface of the friction ring 28 of the pulley 20. Therefore, the drive motor 45
When is driven by a switching operation from the driver's seat, the rotation of the output shaft 46 is transmitted to the pulley 20 via the friction ring 28, and the lamp unit 12 is rotated at a constant speed.

The reflector mounting portions D respectively provided at both ends of the base plate 2 are covered with synthetic resin gloves 47 (FIGS. 1 to 3) which are colored red or yellow and have translucency. The body unit 12, the secondary reflection plate 13, the valve 16, the drive motor 45, etc. are protected. The glove 47 has an oval shape whose side surface is substantially the same as the side wall plate 5, and has a lower surface center portion and an inner end opened, and an inner open end 48 is a fitting groove provided on the outer peripheral edge portion of the side wall plate 5. 49 (3rd
(Fig.), And the lower end and lower part of the outer end are fixed to the base plate 2 by screws 50 (Fig. 2).

In FIG. 2, 51 is a speaker 4, light sources 16 and 34.
And the wiring code of the drive motor 45, and the arrow in FIG.
52 indicates the front of the vehicle body.

In the diffused warning light 1 having such a configuration, when the light source 34 is turned on by the switch operation and the drive motor 45 is driven, the rotation of the output shaft 46 is transmitted to the pulley 20 of the lamp unit 12 via the friction ring 28. Light unit 12
Rotates at a constant speed. Therefore, the reflector 21 rotates around the light source 34, which causes a rotating parabolic reflecting surface.
Rotate and irradiate the light 38 from the light source 34 reflected by 31,
When viewed from one point outside the vehicle body, it is observed as a flash of light.

In this case, of the four lamp units 12, the driver unit side, that is, the two lamp units 12 on the left side in FIG. 3 rotate in the clockwise direction, and the two lamp units on the passenger side, which are the opposite sides, rotate. The body unit 12 rotates counterclockwise.

Next, when the vehicle is stopped or when the vehicle is traveling other than in an emergency, the drive motor 45 is turned off to stop all the lamp units 12 and switch the light source 34 to a blinking state. At this time, all the lamp units 12 are stopped with their optical axes oriented in the front-rear direction of the vehicle body, and especially the two outer lamp units 12B detect the rotational position of the lamp unit 12B by using limit switches and relays. By controlling the stop timing of the drive motor 45, the light transmitting portion 41 is stopped toward the outside of the vehicle body.
Therefore, the light of the light source 34 installed in the inner lamp unit 12A is reflected by hitting the paraboloidal reflective surface 31.
It becomes a parallel light flux parallel to the optical axis and illuminates the front-back direction of the vehicle body.
Therefore, the blinking state of the light source 34 is visible only from the front-back direction of the vehicle body. On the other hand, with respect to the outer lamp unit 12B, since the light transmitting portion 41 is provided on the outer wall 40 of the reflector 21, the light source 34 installed in the lamp unit 12B.
As shown in FIG. 6, the light 38 illuminates the front-rear direction of the vehicle body and, at the same time, passes through the light transmitting portion 41 and illuminates the lateral side of the vehicle body.
As a result, the blinking state of the light source 34 in the outer lamp unit 12B can be visually recognized well not only from the front-back direction of the vehicle but also from the side of the vehicle. In addition, a diffusion lens 42 is provided on the translucent portion 41.
Is provided, the light from the light source 34 is condensed and diffused,
The light-transmitting part 41 glitters, and the visibility of blinking the light source can be further improved.

Here, the reason why the transparent portion 41 is not provided in the inner lamp unit 12A is that the outer lamp unit 12B becomes an obstacle and is not practically useful. However, even if it is provided, it does not have any adverse effect, and in that case, there is an advantage that the lamp unit 12 can be one type.

In the above embodiment, all four light sources are used when the vehicle is stopped.
Although the case where the 34 is made to blink has been described, not limited to this, the two inner lamp units 12A are rotated to rotatably turn on the light of 34 of the light source, and the two outer lamp units 12B are stopped. The light source 34 may be made to blink.

Further, although the above-mentioned embodiment shows an example applied to the diffused type warning light 1 having a four-lamp configuration, it is needless to say that the present invention can be applied to a two-lamp type, a six-lamp type, and the like. The lamp unit constitutes the lamp units on both sides.

Further, in the above-described embodiment, the light transmitting portion 41 is provided only on the outer wall 40 of the reflector 21 of the outer lamp unit 12B, but it is needless to say that the light transmitting portion 41 may be provided on the inner wall because there is no actual damage.
In that case, there is no directionality of the lamp unit 12, which facilitates the assembly work. Further, the transparent portion 41 may be an opening formed in the outer wall 40.

[Effects of the Invention] As described above, the diffused warning light according to the present invention has the light source on the outer wall of the reflector of the lamp unit located outside of the plurality of lamp units arranged in the vehicle width direction. Since the light-transmitting part is provided corresponding to, the light-transmitting part is illuminated when the light source is blinking without rotating the reflector, so that the light source blinks not only from the front of the vehicle but also from the side of the vehicle. It is possible to visually recognize it, to inform all directions that it is an emergency vehicle, and to ensure safety while traveling.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a disassembled part of an embodiment of a diffused warning light according to the present invention, and FIG. 2 is a front view showing the same warning light partly broken away. Is also a plan view showing a part of the warning light in a broken manner, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3, FIG. 5 is a perspective view of the lamp unit, and FIG. 6 is the same lamp unit. FIG. 7 is a front view of the same lamp unit, and FIG. 8 is a vertical sectional view of the same lamp unit. 1 ... Diffused warning light, 4 ... Speaker, 12 ... Lamp unit, 21 ... Reflector, 31 ... Rotating parabolic reflection surface,
34 …… light source, 41 …… translucent part, 42 …… diffusion lens, 45 ……
Drive motor, 47 …… Globe.

Claims (2)

[Claims] 1. A translucent globe installed on a roof of a vehicle so as to extend in the vehicle width direction, and a plurality of lamp units arranged in the globe in the longitudinal direction. , A reflector whose inner surface is composed of two reflecting mirrors whose inner surface forms a reflecting surface and is joined back to back and whose optical axis coincides with the front-rear direction of the vehicle body in a stopped state, and a light source arranged in this reflector, A light source that is a wall surface of the reflector unit of the plurality of lamp units, which is configured to rotate the reflector, and that faces the outer side of the vehicle body in the stopped state, of both side walls of the reflector of the lamp unit. A diffused warning light having a light-transmitting portion provided at a portion corresponding to. 2. The diffused warning light according to claim 1, wherein the light transmitting portion of the reflector is provided with a diffusing lens.