JP7079974B2 - Diffuse warning light and light emitting unit mounted on the diffused warning light - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act Exhibition date May 31, 2018-June 3, 2018 Exhibition name Tokyo International Fire and Disaster Prevention Exhibition 2018 Exhibition location 3-11-1 Ariake, Koto-ku, Tokyo "Tokyo Big Sight" East 6 Hall

The present invention relates to a diffused warning light mounted on the roof of an emergency vehicle or the like.

Conventionally, for example, a diffused warning light described in Patent Document 1 is arranged on the roof of an emergency vehicle such as an ambulance, a fire engine, and a police car. This diffused warning lamp generally has a base fixed to the upper surface of the roof, a light source or an electronic component arranged on the base, and a translucent glove covering the light source or the electronic component. As a light source, an LED, a light bulb, or the like is used. Various optical members such as a reflecting mirror and a refracting lens are arranged between the light source and the glove in order to enhance the warning irradiation function.

Japanese Unexamined Patent Publication No. 2002-245804

Since the warning light emits a strong light, if the lighting is continued during the lifesaving activity by the ambulance, the firefighting activity by the fire engine, or the police activity by the police car, the surroundings will be dazzled, and eventually the lifesaving activity, the firefighting activity, and the police. It may interfere with activities.

Therefore, an object of the present invention is to provide a diffused warning lamp that can alert the surroundings to the activity of an emergency vehicle even when the lighting is temporarily stopped so as not to dazzle the surroundings with the diffused warning lamp. To do.

In order to solve the above-mentioned problems, the diffused warning lamp of the present invention includes a light guide member that extends linearly or planarly along the longitudinal direction of the glove of the diffused warning light and emits light, and the light guide member. It is equipped with a light emitting unit that has an auxiliary light source that supplies light.

Since the diffused warning lamp of the present invention has a light guide member that extends linearly or planarly along the longitudinal direction of the glove to emit light, the diffused warning lamp temporarily turns on the light so as not to dazzle the surroundings. Even when stopped, the light guide member radiates linear or planar light to illuminate the entire length of the glove in the longitudinal direction, ensuring visibility without dazzling and alerting the surroundings to activities by emergency vehicles. Can be done.

It is a perspective view of the diffused warning lamp which concerns on embodiment of this invention. It is (a) plan view, (b) front view, (c) side view of the diffused warning lamp. It is a perspective view of the light emitting unit used for a diffused warning lamp. It is a front view of a light emitting unit. It is a front view of the state which the light guide member is attached to the holder of a light emitting unit. It is a front view of the lens unit attached to the holder of a light emitting unit. It is (a) front view, (b) bottom view, (c) side view of a light guide member and a substrate. It is a front view of the state which three light emitting units are connected. It is a top view of the long diffused light type warning lamp which arranged the wing unit which consists of four intermediate units and one end unit on the left and right. It is a top view of the short type diffused warning lamp which arranged the wing unit which consists of two intermediate units and one end unit on the left and right. It is a figure which shows the light emitting state when only a light guide member is made to emit light.

FIG. 1 is a perspective view of a diffused warning lamp 100 according to an embodiment of the present invention, and FIG. 2 is a three-view view of the diffused warning lamp 100. The diffused warning light 100 is a flat type with a low height, and is mounted on the roof of an emergency vehicle such as an ambulance, a fire engine, or a police car with its longitudinal direction facing the vehicle width direction.

(Outline of diffused warning light)
The central portion of the warning light 100 in the longitudinal direction is the center unit 10 in which the speaker 13 is housed. Wing units 20 containing a light emitting unit 70, which will be described later, are connected to the left and right sides of the center unit 10. The center unit 10 and the wing unit 20 are entirely covered with a resin glove having red translucency.

The ceiling portion of the center unit 10 is composed of a plate-shaped portion 11 located at the center in the front-rear direction and grid portions 12 located on both front-rear and front-rear sides of the plate-shaped portion 11. Speakers 13 are arranged inside (lower side) of the grid portion 12, respectively.

A front plate 14 and a rear plate 15 are arranged on both front and rear surfaces of the center unit 10. If necessary, indicator lights are arranged on the surfaces of the front plate 14 and the rear plate 15. Further, it is also possible to dispose an LED warning light source or the like inside the front plate 14 and the rear plate 15 as needed.

The wing unit 20 is symmetrical and is composed of three left and right intermediate units 21 to 23 having the same shape and one end unit 24. In the illustrated example, three intermediate units 21 to 23 are used, but the number can be increased or decreased as described later in FIGS. 8 and 9.

The intermediate units 21 to 23 have a flat tubular structure, and the front surface and the rear surface thereof are light emitting surfaces. One light emitting unit 70, which will be described later, is arranged inside the front surface and the rear surface. Further, the end unit 24 has a flat hollow structure in which one side is closed, and the closed side is a light emitting surface. A set of two light emitting units 70, which will be described later, are arranged inside the light emitting surface at an angle in a V shape.

(Light emitting unit)
The light emitting unit 70 has a resin holder 30 shown in FIGS. 3A, 3B, and 4, an optical member 40, a light guide member 50, and an LED substrate 60 shown in FIG. The holder 30 is formed in a rectangular frame shape as shown in FIG. 4, and has a rectangular hole 31 for accommodating and arranging the optical member 40 inside the rectangular frame. Brackets 32 for screwing are arranged at two positions of the rectangular holes 31 facing each other.

Horizontal groove portions 33 for accommodating and arranging the light guide member 50 are formed on both the upper and lower sides of the holder 30. The groove 33 has a semicircular cross section, and a cylindrical rod-shaped light guide member 50, which will be described later in FIG. 6, can be fitted and arranged in the groove 33.

At the right end of the holder 30 in FIGS. 3A and 3B, a connecting groove portion 34 having the same cross-sectional shape as the groove portion 33 is formed so as to be located on an extension line of the groove portion 33. The connection groove portion 34 constitutes a mutual engagement portion for aligning the light guide member 50 linearly along the longitudinal direction of the glove. That is, when a plurality of light emitting units 70 are continuously arranged as shown in FIG. 7, the light guide is provided by fitting the tip portion 50a of the light guide member 50 of another adjacent light emitting unit 70 into the connection groove portion 34. The linearity between the members 50 is guaranteed, and the positioning between the light emitting units 70 is also guaranteed.

As shown in FIG. 5, the optical member 40 has three consecutive circular condenser lenses 41 in the left-right direction. The optical member 40 is fixed to the holder 30 by screws 35 as shown in FIG. 3B in a state where the screw holes 42 formed at both ends in the longitudinal direction thereof are aligned with the bracket 32 of the holder 30.

(Light guide member)
FIG. 6 shows a state in which the light guide member 50 is attached to the LED substrate 60. The light guide member 50 is formed of a translucent resin into a linearly extending cylindrical rod shape. The introduction portion 51 is connected to one end of the light guide member 50.

The introduction portion 51 is bent in an arc shape toward the LED substrate 60 side arranged adjacent to the light guide member 50. The tip of the introduction portion 51 is directly connected to the LED 61 as an auxiliary light source arranged on the LED substrate 60. Therefore, the light of the LED 61 is introduced into the light guide member 50 via the introduction portion 51.

A plurality of reflection slits 52 are formed at equal intervals on the surface of the light guide member 50 on the LED substrate 60 side. The light reflected along the longitudinal direction of the light guide member 50 is reflected by the reflection slit 52 in a direction perpendicular to the axis of the light guide member 50, that is, in a direction opposite to the LED substrate 60. Therefore, when viewed from the outside of the diffused warning lamp 100, the light guide member 50 appears to shine linearly in the horizontal direction.

A plurality of LEDs 61, 62 and an LED drive circuit are mounted on the mounting surface of the LED board 60. A fastener 63 is attached to the back side of the LED board 60. The two upper and lower LEDs 61 arranged on one side of the LED substrate 60 supply light to the introduction portion 51 of the two light guide members 50 described above as an auxiliary light source of the diffused warning lamp 100. The three LEDs 62 arranged side by side at the center position in the vertical direction of the LED substrate 60 at equal intervals in the horizontal direction are the centers of the three consecutive circular condensing lenses 41 described above as the main light source of the diffused warning lamp 100. Light is emitted toward the condenser lens 41 in a state of being aligned with.

The light guide member 50 is fitted to the groove 33 of the holder 30 as shown in FIGS. 3A and 3B. The peripheral portion of the LED substrate 60 is fitted to a fitting portion formed on the back side of the holder 30. Further, the fastener 63 on the back side of the LED substrate 60 is fixed to the support portion arranged inside the wing unit 20.

As shown in FIGS. 1 and 2, two light emitting units 70 described above are arranged in the intermediate units 21 to 23 and the end unit 24, respectively. The width of the diffused warning lamp 100 can be freely extended by additionally connecting the intermediate units 21 to 23 as shown in FIG. Further, as shown in FIG. 9, the width of the diffused warning lamp 100 can be freely shortened by reducing the number of intermediate units. Therefore, according to the embodiment of the present invention, it is possible to reduce the need to line up a plurality of different sizes of the diffused warning lamp 100 according to the size of the emergency vehicle, and by extension, the diffused warning lamp 100. It is possible to reduce the cost of.

(Light emission state of diffused warning light)
When all the LEDs 61 and 62 of the diffused warning lamp 100 are made to emit light at the same time, strong light is emitted from each light emitting unit 70 from each light emitting unit 70 and three consecutive circular condensing lenses 41 at the same time, and the light is guided. The light from the optical member 50 becomes linear and borders the upper and lower sides of the circular condenser lens 41. Such a edging light emission pattern gives the viewer a peculiar impression that the conventional diffused warning light does not have, and enhances the effect of calling attention to the surroundings. When the linear light of the light guide member 50 is unnecessary, only the LED 62 of the main light source is turned on. As a result, a light emitting state similar to that of a conventional diffused warning lamp can be obtained.

Since the light from the circular condensing lens 41 when the LED 62 of the main light source is turned on is strong, if the lighting is continued during the lifesaving activity by the ambulance, the firefighting activity by the fire engine, or the police activity by the police car. , Dazzling the surroundings, and may interfere with lifesaving activities, firefighting activities, and police activities. Therefore, in the embodiment of the present invention, during the lifesaving activity, the fire fighting activity, and the police activity, the LED 62 of the main light source is turned off, and instead, only the LED 61 of the sub light source that emits the light guide member 50 is turned on. This will prevent dazzling surroundings and facilitate lifesaving, firefighting and police activities.

Moreover, during the activity, the relatively soft light from the light guide member 50 becomes linear and emits a wide range of light in two upper and lower stages. Further, since the light emitting unit 70 is individually provided with an LED 61 as an auxiliary light source for the light guide member 50, even if there is a performance limitation on the brightness of the LED 61, the light emission attenuation in the length direction of the light guide member 50 The amount is small, and it can be emitted with uniform and bright light. Due to the uniform and bright linear light emission of the light guide member 50, it is possible to maintain a certain alert effect toward the surroundings regarding the activity by the emergency vehicle while preventing the dazzling of the surroundings. FIG. 10 shows a light emitting state when the LED 62 of the main light source is turned off and only the light guide member 50 is made to emit light by the LED 61 of the sub light source, and the light guide member 50 emits light linearly with uniform bright light. I understand that.

As the light emitting pattern of the light guide member 50, various light emitting patterns are selected as necessary, such as blinking the LEDs 62 all at once, blinking sequentially like a tail, or making different light emitting patterns in the upper and lower stages. be able to. Therefore, the light emission pattern of the light guide member 50 can be switched according to the degree of necessity of calling attention .

Although the embodiment of the present invention has been described above, the present invention can be modified in various ways other than the above-described embodiment. For example, in the above embodiment, a plurality of light emitting units 70 are continuously connected in the lateral direction, but the light emitting units 70 can be used alone, for example, by arranging them intermittently without making them continuous.

Further, in the above-described embodiment, the light guide member 50 is formed in a linear shape with a cylindrical rod shape, but it is also possible to form the light guide member 50 wide in the vertical direction to emit light in a planar shape. As a result, soft light can be emitted in a wider range, and visibility can be further improved while reducing dazzlingness.

Further, in the above embodiment, the light guide member 50 is arranged in two stages so as to be located above and below the optical member 40, but the light guide member 50 may be arranged in one stage only on the upper side or the lower side of the optical member 40. good. Further, it is also possible to arrange the light guide member 50 in the vertical direction so as to partition between the left and right light emitting units 70.

10: Center unit 11: Plate-shaped part 12: Grid part 13: Speaker 14: Front plate 15: Rear plate 20: Wing unit 21-23: Intermediate unit 24: End unit 30: Holder 31: Rectangular hole 32: Bracket 33 : Groove 34: Connection groove 35: Screw 40: Optical member 41: Condensing lens 42: Screw hole 50: Light guide member 51: Introductory part 52: Reflection slit 60: Substrate 61, 62: LED 63: Fastener 70: Light emitting unit 100: Diffuse warning light

Claims (5)

A plurality of light emitting units mounted on a diffused warning lamp that radiates light from a main light source to the outside through an optical member and a glove, and the plurality of light emitting units are linear or surface along the longitudinal direction of the glove. Mutual engagement that has a light guide member that extends in a shape and emits light, and an auxiliary light source that supplies light to the light guide member, and each light guide member is linearly aligned along the longitudinal direction of the glove. A light source unit characterized by having a unit. The light emitting unit according to claim 1 , wherein the light guide member is arranged adjacent to the optical member. The light emitting knit according to claim 1 or 2 , wherein the main light source and the sub light source are arranged on a common substrate. A diffused warning lamp, wherein the light emitting unit according to any one of claims 1 to 3 is mounted in the glove. The diffused warning lamp according to claim 4 , wherein the light guide member is arranged adjacent to the upper side, the lower side, or the upper and lower sides of the optical member.

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