JPH0654123U - Rotation warning light - Google Patents

Abstract

(57) [Summary] [Structure] A parabolic reflector 4 in which a light bulb 2 mounted in a socket 3 is erected downward in the center is provided downward, and a mountain-shaped reflector 5 is provided below the parabolic reflector 4. In a rotation warning lamp 10 configured to rotatably support and to have the rotation mechanism for rotating the mountain-shaped reflector 5 covered with a colored transparent globe 1, The protruding band 11 is provided at least at a position facing the lower side of the socket 3. [Effect] There is provided a rotation warning lamp in which an inexpensive general light bulb can be adopted, and the light bulb 2 can be easily attached, and the shadow portion of the socket 3 shines.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotation warning light that rotates and reflects light from a light source.

[0002]

[Prior art]

 This type of rotating warning light is installed on the roof of an emergency vehicle such as a patrol car or an ambulance, and is used as a warning light to flash light when an emergency occurs. It is widely used as a signal light for various industrial equipment and as an advertising light combined with various signs.

Usually, this rotation warning light includes a light source such as a halogen lamp in a globe that is transparent or colored in various colors such as red, blue or yellow, and a reflector that reflects the light emitted from the light source. The reflector is configured to be rotated by the rotational force of the motor when an emergency occurs or to draw the attention of a person, etc., and the light emitted from the light source is reflected to the surroundings in a flash. There is.

As the above-mentioned rotation warning lights, there are utility model publications No. 6839, Showa 46, No. 33174, Showa 52, and No. 36545, Showa 52. One of them, Utility Model Publication No. 6839, Showa 46, will be described with reference to FIG. 4 (a cross-sectional view showing the main part of the rotation warning light).

Two reflection plates 41 are inclined and joined in a 90 ° mountain shape inside the support member, and a light bulb 42 is a shield beam light bulb and is positioned above the reflection plate 41. The shield beam bulb 42 is vacuum-deposited on aluminum on a reflecting mirror 43, and is filled with an inert gas. The light radially emitted from the filament 44 is transmitted through the glass 45 and emitted. Arrows A, B, and C in the drawings indicate light paths. The light indicated by the arrow A goes obliquely upward 45 ° from the filament 44, is reflected by the reflecting mirror 43 of the shielded beam light bulb 41, goes straight in the downward vertical direction, is transmitted through the glass 45, and is further reflected by the reflecting plate 41. Head horizontally in the horizontal direction. The light indicated by the arrow B goes obliquely upward from the filament 44 (the angle is higher than the light indicated by the arrow A), is reflected by the reflecting mirror 43 of the shielded beam light bulb 41, and is directed outward in the oblique lower acute angle (reference to the vertical line). The light travels straight through the glass 45, is reflected by the reflection plate 41, and travels in the horizontal and horizontal directions. The light indicated by the arrow C goes diagonally downward to the acute angle (reference to the vertical line), is transmitted through the glass 45, is reflected by the reflection plate 41, and goes diagonally downward.

The rotation warning lamp as described above has a large amount of light because it uses the shielded beam bulb 42.

[0007]

[Problems to be solved by the device]

 However, the above-mentioned shield beam bulb requires a tool (driver) for installation, is heavy, is not easily available, and is expensive. Therefore, the purpose of this proposal is to provide a rotating warning light with a large amount of light by replacing the shield beam light bulb with another general light bulb. Also, if the shielded beam bulb is simply replaced with another ordinary bulb, the portion of the reflected light emitted in the horizontal direction by the mountain-shaped reflector will be the shadow of the socket due to the bulb socket.

[0008]

[Means for Solving the Problems]

 Therefore, a light bulb attached to a socket is provided with a parabolic reflector standing vertically downward in the center, and a mountain-shaped reflector is rotatably supported below the parabolic mirror, so that the above-mentioned mountain-shaped reflective mirror is supported. In a rotation warning light having a rotation mechanism for rotating the plate and being covered with a colored transparent globe, a protrusion band is provided at least at a position facing the lower side of the socket of the mountain reflection plate. It consists of

[0009]

[Action]

 According to the above configuration, the light emitted from the light bulb is reflected downward by the parabolic reflector and then by the chevron reflector in the circumferential direction. At this time, the light emitted directly from the light bulb is diffusely reflected by the projection band provided at the position facing the lower side of the socket, and a part of the light is emitted laterally. In this way, a rotation warning lamp can be provided which is easy and inexpensive to mount a light bulb, and which uses a general light bulb in which the shadow of the socket shines.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing the entire structure of a rotation warning lamp according to the present invention, and FIG. 2 is a light path diagram. Further, FIG. 3 is a perspective view of the mountain-shaped reflector 5.

The rotating lamp 10 shown in FIG. 1 includes a parabolic reflecting mirror 4 mounted on an upper part of a transparent cylindrical body 9 inside a colored transparent globe 1 having a cylindrical cup shape, and a parabolic reflecting mirror 4. A light bulb 2 mounted in a socket 3 which is erected downward in the center, a mountain-shaped reflection plate 5 for rotating and reflecting the light emitted from the light bulb 2 to the surroundings, and a cylindrical case 6 under the globe 1. A rotating mechanism in which a motor 7 for rotating the reflector 5 and a rotor 8 are combined is housed.

As the light bulb 2, a halogen light bulb is often used because it has a large amount of light, can be easily attached, and is inexpensive. The chevron-shaped reflector 5 is a flat-plate-shaped one which is divided into two halves in the short side direction and processed into a chevron, and has two inclined surfaces. A protruding band 11 is provided at a position facing the lower side. The protrusion band 11 is capable of laterally reflecting the light emitted from the light bulb 2 by diffuse reflection, and may be formed by, for example, forming protrusions during molding such as embossing, blasting, or attaching a diffuse reflection sheet. The chevron-shaped reflector 5 is installed above the rotor 7 which is housed in the case 6 with a part of the upper surface of the case 6 opened, and the rotational force of the motor 8 causes the center of the axis X to pass through the rotor 7. It is rotating.

Next, the light emission path of the rotation warning lamp 10 will be described. FIG. 2 is a light path diagram of a main part of the rotation warning light according to the present invention. As an outline of the light path, the light emitted upward from the light bulb is reflected vertically (downward) by the parabolic reflector and emitted horizontally by the reflection of the mountain reflector. The light emitted downward from the light bulb is reflected obliquely downward by the reflection of the mountain-shaped reflector, but in the protrusion band of the mountain-shaped reflector, it is diffusely reflected by each protrusion, and some light is It will be reflected in the horizontal direction. According to the figure, in order to further compare with the one described in the related art, the light directed obliquely upward of the light bulb will be described as arrows A and B, and the light directed downward of the light bulb will be described as arrow C. . The light indicated by the arrow A travels obliquely upward and outward from the light bulb 2, is reflected by the reflecting mirror 4 and is vertically downward, is reflected by the reflector 5 and is horizontally horizontal. Here, a portion of the mountain-shaped reflector 5 indicated by the arrow A is a shadow of the socket 3, and the projection band 11 is provided at least at this portion. The light indicated by the arrow B is a light path that does not actually exist because it goes obliquely upward from the light bulb 2 and strikes the socket 3. The light indicated by the arrow C 3 is directed directly from the light bulb 2 to the oblique downward acute angle (reference to the vertical line), is diffusely reflected by the projection band 11 of the mountain-shaped reflector 5, and part of the light is directed horizontally. In this way, the light path indicated by the arrow A and the light path indicated by the arrow B are the same as those of the conventional technique, but the light path indicated by the arrow C is the same as that of the present invention in the horizontal and horizontal directions. This is different from the conventional technology in that the shadowed part of the socket will shine as it heads.

The rotation warning light according to the present invention has been described above. In the description, an example in which a halogen light bulb is used as the light bulb is shown, but it goes without saying that a general light bulb having a large light amount other than the halogen light bulb may be used.

[0015]

[Effect of device]

 It is known that when the warning light is emitted, the visibility changes according to the brightness of the warning light in the daytime and according to the size of the light source at night. Since the rotation warning light according to the present invention has the projection band on the shadowed portion of the socket of the mountain-shaped reflector, the shadowed portion of the socket, which has not been illuminated from the lateral direction in the past, can be illuminated. It has improved the visibility at night. In addition, the problem of shadows remaining on the mountain-shaped reflectors of the warning reflection part of the rotation warning light disappeared, and the aesthetically pleasing result of the warning light was obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the inside of a rotation warning light according to an embodiment of the present invention.

FIG. 2 is a light path diagram according to an embodiment of the present invention.

FIG. 3 is a perspective view of a mountain-shaped reflector according to an embodiment of the present invention.

FIG. 4 is a sectional view showing a main part of a conventional rotation warning lamp.

[Explanation of symbols]

 1 Globe 2 Light Bulb 3 Socket 4 Reflector 5 Mountain Reflector 10 Rotation Warning Light 11 Protrusion Band

Claims (1)

[Scope of utility model registration request] 1. A parabolic reflector having an electric bulb mounted in a socket, which is erected downward in the center, is provided downward, and a mountain-shaped reflector is rotatably supported below the parabolic reflector. A rotation warning lamp having a rotation mechanism for rotating the chevron-shaped reflector and being covered with colored and transparent gloves, wherein a projection band is provided at least at a position facing the lower side of the socket of the chevron-shaped reflector. A rotation warning light characterized by being provided with.