JPH0317325B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The vehicle-mounted revolving light of the present invention will be explained according to the following items.

A. Field of industrial application B. Outline of the invention C. Prior art [FIGS. 7 to 9] D. Problems to be solved by the invention E. Means for solving the problems F. Embodiments [FIGS. 1 to 6] ] a Overview of the vehicle-mounted revolving light [Figures 1 and 2] b Base [Figure 2] c Globe [Figures 1 and 2] c-1 Globe element [Figures 1 and 2] c-2 Attaching the glove to the base [Figure 2] c-3 Outer cover [Figures 1 and 2] d Unit stand [Figures 2 to 6] d-1 Rotating irradiation section [Figure 2] 2 to 6] d-2 Reflective irradiation part [Figs. 4 and 5] d-3 Fixed irradiation part [Fig. 4] d-4 Support of unit base to globe [2nd
[Figure] e Others [Figure 2] G Effects of the invention (A Field of industrial application) The present invention relates to a novel vehicle-mounted revolving light. Specifically, the present invention aims to provide a new vehicle-mounted rotating light that can clearly blink the plurality of reflective surfaces that constitute the reflective irradiation section by increasing the directivity of the irradiated light from the rotating irradiation section. be.

(B. Summary of the Invention) The vehicle-mounted revolving light of the present invention is provided with a polarizing plate that removes light beams other than light beams substantially parallel to the optical axis in the horizontal direction at the opening of the reflecting mirror having a paraboloid of revolution in the rotating irradiation section. This increases the directivity of the irradiated light from the rotating irradiator to the reflected irradiator, and changes the angle with the rotating irradiator while the light from the rotating irradiator is sequentially irradiated onto adjacent reflective surfaces. A vehicle-mounted revolving light is provided in which the reflection angle of light is suddenly changed at the boundary of each reflective surface to produce a sequential blinking irradiation effect, thereby making it possible to clearly blink on each reflective surface. It is.

(C Prior Art) [Figures 7 to 9] Figures 7 to 9 are examples of conventional vehicle-mounted revolving lights a
This shows that.

b is a base, which is fixed to the roof of a vehicle such as an automobile.

C is a cylindrical globe made of a transparent material, for example, a colorless transparent or colored transparent synthetic resin, and is mounted on the base b.

Reference numeral d denotes a unit stand housed in the glove c, and the unit stand d is provided with a rotating irradiation section e, a sequential blinking irradiation section f, and a blinking irradiation section g.

The rotating irradiation part e is equipped with a light bulb h fixedly provided on a unit stand d and a reflecting mirror i rotatably provided on the unit stand d.The reflecting mirror i directs the reflected light in two opposite directions. It's starting to irradiate.
The light bulb h is positioned inside the reflector i through an insertion hole j formed on the bottom surface of the central part of the reflector i,
The light from the light bulb h is reflected by the reflecting mirror i and irradiated in two opposite directions.

Therefore, when the reflecting mirror i rotates, rotational irradiation is performed in which the irradiation direction sequentially moves in the circumferential direction.

The sequential blinking irradiation section f is constituted by an inclined reflecting mirror facing substantially forward. The inclined reflecting mirror f has three reflecting surfaces f ₁ , f ₂ , f ₃ connected laterally, and these reflecting surfaces f ₁ , f ₂ , f ₃ have slightly different angles with respect to the rotating irradiation part e. The light emitted from the rotating irradiation section e is reflected in the front direction.
Since the irradiation light from the rotating irradiation part e is rotating, in order to sequentially move to each reflecting surface f ₁ , f ₂ , f ₃ , when the sequential blinking irradiation part f is viewed from the front, It appears that the lighting locations are sequentially flowing from right to left (or left to right), so-called sequential blinking irradiation.

The blinking irradiation part g consists of a rotating parabolic reflector k placed behind the inclined reflector f and facing backward, and a light bulb l having a light source part placed at a substantially focal position of the reflector k, The light bulb l is adapted to be blinked by a blinking circuit, thereby providing blinking illumination toward the rear.

(D Problems to be Solved by the Invention) By the way, regarding the above-mentioned vehicle-mounted revolving light a,
The light flux sequentially irradiated from the rotating irradiation part e to the blinking irradiation part f contains light fluxes that are directly irradiated from the bulb h and are non-parallel to the optical axis, so the directionality of these light fluxes is weak, and the lighting does not occur on the reflective surface f. When moving from ₁ to f ₂ , and from reflecting surface f ₂ to f ₃ , the direct light from bulb h will also be irradiated to the adjacent reflecting surface, causing each reflecting surface to
There was a problem in that the blinking of f ₁ , f ₂ , and f ₃ became unclear, and the lighting locations shifted in what was commonly called a sloppy manner, resulting in sequential blinking without so-called "sharpness."

(E. Means for Solving the Problems) In order to solve the above-mentioned problems, the in-vehicle revolving light of the present invention has an aperture of a reflecting mirror having a paraboloid of revolution in a rotating irradiation section, which is arranged horizontally along the optical axis. A polarizing plate is arranged to remove light beams other than parallel light beams.

Therefore, according to the vehicle-mounted revolving light of the present invention, the luminous flux emitted from the rotating irradiation section can be made highly directional with respect to the reflected irradiation section, and each reflection at a different angle with the rotating irradiation section can be made The reflection angle of light can be suddenly changed at the boundary in the surface, and a clear sequential blinking irradiation effect can be obtained.

(Embodiment F) [Figures 1 to 6] Details of the vehicle-mounted revolving light of the present invention will be described below with reference to illustrated embodiments.

(a Overview of a vehicle-mounted rotating light) [Figures 1 and 2] In the figure, 1 is a vehicle-mounted rotating light, 2 is a base fixed on the roof of the car, and 3 and 3 are mounted on the base 2. Supported gloves, 4, 4 are gloves 3, 3
Unit pedestals 5, 5 mounted inside are rotary units supported on unit pedestals 4, 4.

(b Base) [Figure 2] The base 2 is made of extruded aluminum, and the side edges are curved and raised upwards, and the upper edge protrudes horizontally inward. Engagement edges 6, 6 are formed.

Reference numerals 7 and 7 denote legs, which are fixed to the lower surface of the base 2 near both ends, and when the legs 7 and 7 are fixed to the roof of the automobile, the base 2
is fixed to the roof of the car.

Reference numerals 8 and 8 designate support pieces that are erected at the center of the base 2 at intervals in the longitudinal direction of the base 2.

(c Glove) [Figures 1 and 2] Since the gloves 3 and 3 are formed to have the same structure, only one of them will be explained, and the explanation of the remaining ones will be omitted.

The glove 3 includes a plurality of glove elements, three glove elements 9 in the illustrated embodiment,
9,9 are connected.

(c-1 Globe element) [Fig. 1, 2
[Figure] The globe element 9 has a short cylindrical shape with a substantially oval cross-sectional shape, and is made of a transparent material that is colored in an appropriate color or is colorless.

A low platform 10 is formed on the bottom surface of the globe element 9 and extends in the axial direction from the center thereof, and engagement pieces 1 are provided on both side edges of the platform 10.
1 and 11 are formed to protrude outward.

Reference numeral 12 denotes a recessed portion formed in the inner bottom portion of the glove element 9 by forming the platform portion 10 at the bottom portion of the glove element 9 .

Horizontal pieces 13, 13 are formed from positions near the upper ends of both sides of the recess 12, projecting in opposite directions and spaced from the bottom of the recess 12 at an appropriate distance.

Reference numerals 14 and 14 denote mounting ribs, which are erected on the bottom surface of the recess 12 at positions near both side edges.

Therefore, there is a sliding space 1 between the upper edge of the mounting ribs 14, 14 and the lower surface of the horizontal pieces 13, 13.
5 and 15 are formed.

And the glove 3 formed in this way
An inner cover 16 is fixed to the inner end of the inner cover.

(c-2 Attaching the glove to the base) [Figure 2] However, the outer end of the glove 3 to which the inner cover 16 is attached is slightly protruding from the end of the base 2, and the glove 3 is attached to the base 2. Take it on top of 2,
Then, the engagement piece 1 formed on the glove 3
1, 11, . . . and the engaging edges 6, 6, the glove 3 is attached to the base 2.

(c-3 outer cover) [Figures 1 and 2] 17 is an outer cover, and the glove 3
It is made of the same transparent material as the one used in the previous version, and is formed into a roughly oval disk shape.

An annular engagement protrusion is formed along the slightly inner side of the periphery of the outer cover 17, and the engagement protrusion is engaged with an engagement groove of the glove element 9 located at the outer end of the glove 3.

(d Unit base) [Figures 2 to 6] The unit base 4 is formed of a metal plate, and has engagement edges 18 that are bent in a substantially L-shape at both edges along the longitudinal direction and protrude outward. 18 are formed.

5 is a rotating unit provided on the unit stand 4, which includes a rotating irradiating section 19, a reflective irradiating section 20,
It consists of a fixed irradiation section 21.

(d-1 Rotary irradiation unit) [Figures 2 to 6] The rotation irradiation unit 19 is configured as follows.

Reference numeral 22 denotes a substantially rectangular chassis, and a circular hole 23 is formed approximately in the center of the chassis 22. A cover 24 is shaped like a hat turned upside down, and is fixed to the lower surface of the chassis 22 so as to cover the circular hole 23. Further, an insertion hole 25 is formed in the center of the recess 24a of the cover 24.

Reference numeral 26 denotes a rotary plate, and a recess 27 is formed in the center of the rotary plate.
An insertion hole 28 having a slightly larger diameter than the insertion hole 25 formed in the recess 24a of the cover 24 is formed in the center of the cover 24. Further, a transmission body 29 made of a material having a large coefficient of friction, such as rubber, is attached to the outer peripheral surface of the rotary plate 26.

30 is a spacer formed in a substantially cylindrical shape, and the outer diameter of the lower end portion 30a is made small. Note that the outer diameter of the lower end portion 30a is the same as that of the cover 2.
The rotation plate 26 is larger than the diameter of the insertion hole 25 of No. 4.
The diameter of the insertion hole 28 is slightly smaller than the diameter of the through hole 28, and the length is slightly larger than the thickness of the recess 27 of the rotary plate 26.

Reference numeral 31 denotes a light bulb support part, which has a tall U-shape when viewed from the side, and a light bulb 32 is detachably supported on its upper piece 31a. Furthermore, an attachment hole 31c is formed in the lower piece 31b.

Reference numeral 33 designates a holding member, which is placed over the lower piece 31b of the light bulb support 31 and has an insertion hole 33a formed in the holding member 33 with a mounting bolt 34, and an insertion hole 31c formed in the lower piece 31b of the light bulb support 31. , spacer 30, and cover 24, and a nut 35 is screwed into a portion of the mounting bolt 34 that protrudes from the insertion hole 25 to the lower side of the cover 24. This allows the light bulb 3 to be placed on the chassis 22.
2 is supported, and a rotating plate 26 is rotatably supported by the chassis 22.

Reference numeral 36 denotes a motor supported on the lower surface of the chassis 22. A friction gear 37 is supported on an output shaft 36a of the motor 36, and the friction gear 37 is connected to a transmission body 29 provided on the outer peripheral surface of the rotary plate 26. is in contact with.

When the motor 36 rotates, the rotation is transmitted to the rotary plate 26 via the friction gear 37 and the transmission body 29, causing the rotary plate 26 to rotate.

Reference numeral 38 denotes a reflecting mirror, which has a shape such that two reflectors 38a and 38b having reflective surfaces in the shape of a paraboloid of revolution are cut out at approximately the focal point and joined back to back. Then, flat parts 38c, 38c are formed at the lower part of the opening edge of the reflecting mirror 38, and the flat parts 38c, 38c are connected to the rotating plate 26.
It is fixed to the rotary plate 26 with screws 39, 39 while being placed on top. In addition, the reflector 38
An insertion hole 38 is provided on the lower surface of the connecting portion between a and 38b.
d is formed, the light bulb 32 is inserted into the reflecting mirror 37 through the insertion hole 38d, and the filament 32a of the light bulb 32 is positioned at the common focal point of the reflective surfaces of the two reflectors 38a and 38b.

Reference numeral 40 denotes a polarizing plate disposed at the front opening of the reflecting mirror 38, and is designed to remove light beams other than those parallel to the optical axis in the horizontal direction.

When the light bulb 32 lights up, the light emitted from the light bulb 32 is reflected by the reflecting mirror 38, and the reflected light 4 is directed toward the front opening of the reflecting mirror 38.
1 and a direct light 42 directed toward the front opening of the direct reflecting mirror 38. Among these lights 41 and 42, the light beams other than the light beams that are substantially parallel to the optical axis in the horizontal direction are blocked by the polarizing plate 40, and rotational irradiation is performed. The light is not emitted from the portion 19 to the outside. Therefore, only the light beam parallel to the optical axis of the reflecting mirror 38 in the horizontal direction is emitted from the rotating irradiation unit 19 to the outside and functions as the irradiation light 43.

Further, when the motor 36 of the rotary irradiation unit 19 rotates, the irradiation light 43a, 4 is emitted by the reflecting mirror 38.
The irradiation direction of 3b moves in the rotation direction,
This results in rotational irradiation.

44, 44, . . . are rubber bushings, and the four corners of the chassis 22 are attached to the unit base 4 via these rubber bushings 44, 44, .

(d-2 Reflective irradiation unit) [FIGS. 4 and 5] The reflective irradiation unit 20 sequentially performs blinking irradiation, and is constituted by an inclined reflecting mirror.

This inclined reflecting mirror 20 has three independent reflecting surfaces 45a, 45b, and 45c. These reflecting surfaces 45a, 45b, and 45c have different angles with respect to the rotating irradiating section 19, and are adapted to reflect the irradiated light 43 coming from the rotating irradiating section 19 toward a predetermined irradiation direction.

The reflective irradiation section 20 is integrally molded from synthetic resin, and also has a reflective surface 45.
A, 45b, and 45c are provided with reflective films formed by vacuum evaporation of aluminum.

Assuming that the irradiation lights 43a and 43b from the rotating irradiation section 19 change their irradiation direction, first, the irradiation light 43a changes its irradiation direction to the reflecting surface 45a,
Moving to the reflective surface 45b and the reflective surface 45c,
Then, the irradiated light 43b is applied to the reflective surface 45.
a, the reflective surface 45b, and the reflective surface 45c, and this cycle is repeated to sequentially perform blinking irradiation. At this time, since the irradiated light 43 is substantially parallel to the optical axis of the reflecting mirror 38 in the horizontal direction, the reflecting surface 45a and the reflecting surface 45
It is possible to perform sequential blinking irradiation in which the reflection angle is abruptly changed at the boundary between the reflecting surface 45b and the reflecting surface 45c, and the lighting location moves sequentially as the blinking state ends.

46, 46 are reflective surfaces 45a, 45b, 45c
are mounting legs integrally formed at the lower ends of the respective boundary parts, and the mounting legs 46, 46 are connected to screws 47, 4.
7 is fixed to the unit base 4, whereby the inclined reflecting mirror 20 is provided on the unit base 4.

In addition, the mounting legs 46, 46 are connected to the reflective surfaces 45a, 45.
By forming them integrally at the lower ends of the respective boundaries of the mounting legs 46 and 45c, the support strength of the mounting legs 46 and 46 can be increased.

(d-3 Fixed irradiation section) [Fig. 4] The fixed irradiation section 21 is configured as follows.

That is, 48 is a parabolic reflector provided on the unit base 4 on the back side of the inclined reflector 20 so as to face rearward, and 49 is a parabolic reflector whose light emitting part is connected to the reflector 48.
This is a light bulb installed on the unit stand 4 so that it is located at approximately the focal point of the light bulb.

(d-4 Supporting the unit base to the glove) [Figure 2] The unit base 4 as described above has engaging edges 18, 18 provided on both side edges of the unit base 4, which are slidably attached to the inner bottom of the glove 3. It is inserted into the spaces 15, 15 and is thereby supported within the glove 3.

(e Others) [Fig. 2] Numerals 50 and 50 are loudspeakers attached between support pieces 8 and 8 on the base 2, one of which faces forward and the other faces rearward.

51, 51 are the center part of the base 2, the support pieces 8 and 8
This is a cover that covers the part between the two, that is, the part to which the loudspeakers 50, 50 are attached.

(G. Effects of the Invention) As is clear from the above description, the vehicle-mounted revolving light of the present invention has a rotating irradiation part that rotates and irradiates light, and a rotating irradiation part that receives and reflects light from the rotating irradiation part to direct it in a predetermined direction. The reflective irradiation section has a plurality of reflective surfaces having slightly different angles with respect to the rotating irradiation section, and the rotation irradiation section has a substantially focal position of a reflecting mirror having a paraboloid of revolution. A light source is disposed at , a reflecting mirror is configured to rotate around an axis perpendicular to the optical axis, and an aperture of the reflecting mirror is provided with an aperture that removes light beams other than those substantially parallel to the optical axis in the horizontal direction. It is characterized in that a polarizing plate is arranged.

Therefore, according to the vehicle-mounted revolving light of the present invention, the light emitted from the rotating irradiation section can be made into a luminous flux with strong directivity toward the reflection irradiation section, and the light reflected at the reflection irradiation section also has a strong directionality. Moreover, since the direction of reflection of the reflected light can be suddenly changed at the boundary between the reflective surfaces, the blinking of each reflective surface can be made clear.

[Brief explanation of the drawing]

1 to 6 show an example of the implementation of the vehicle-mounted revolving light of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is an exploded perspective view, and FIG. 4
The figure is an enlarged plan view of the unit base, Figure 5 is a schematic plan view showing irradiation light, Figure 6 is a sectional view taken along the - line in Figure 4, and Figures 7 to 9 are of a conventional vehicle-mounted revolving light. An example is shown. Figure 7 is an exploded perspective view, and Figure 8 is an exploded perspective view.
The figure is a perspective view of the unit stand, and FIG. 9 is a perspective view of a part of the unit stand seen from another direction. Explanation of symbols, 1... Vehicle-mounted revolving light, 19... Rotating irradiation section, 20... Reflective irradiation section, 32... Light source, 3
8... Reflecting mirror, 40... Polarizing plate, 41... Luminous flux substantially parallel to the optical axis, 45... Reflecting surface.

Claims (1)

[Scope of Claims] 1. A rotating irradiation unit that rotationally irradiates light, and a reflective irradiation unit that receives and reflects the light from the rotational irradiation unit and irradiates it in a predetermined direction, the reflective irradiation unit being configured to emit light in a predetermined direction. The rotating irradiation section has a light source located approximately at the focal point of a reflecting mirror having a paraboloid of rotation, and the reflecting mirror is centered on an axis perpendicular to the optical axis. 1. A vehicle-mounted revolving light, characterized in that: the reflecting mirror is configured to rotate, and a polarizing plate is disposed in an opening of the reflecting mirror to remove a light beam other than a light beam substantially parallel to an optical axis in a horizontal direction. 2. The vehicle-mounted rotating device according to claim 1, wherein the reflecting mirror has a shape in which two reflectors each having a paraboloid of revolution reflecting surface are cut off at substantially the focal point and joined back to back. light.