JP4489410B2 - Warning light - Google Patents

Description

  The present invention relates to a diffused warning light with a sign installed in an emergency vehicle such as a fire truck or an emergency evacuation site of a building.

  As a warning light installed on the roof of an emergency vehicle, a diffused warning light in which rotating lights are arranged at a plurality of locations in a casing including a horizontally long translucent glove is generally used. Among such warning lights, there is one in which a speaker unit that houses a speaker is provided at an intermediate position in the longitudinal direction of the housing. The sound emitting part of the speaker is usually placed facing the front of the housing, but the sound emitting part of the speaker is placed at the lower position on the front of the housing in order to increase the warning light generation area around the speaker. Some are arranged (see Patent Document 1).

On the other hand, the diffused warning light includes a warning light with a sign provided with a horizontally long panel-like sign part for displaying the type of the warning light and the installation location. This sign part is usually arranged in front of the longitudinal intermediate position of the housing.
Japanese Patent Laid-Open No. 09-069303 (FIG. 1)

  The warning light tends to be horizontally long and flat to reduce the amount of protrusion from the vehicle roof. In such a shape constraint, when the warning part, the speaker part and the sign part are arranged in a horizontal line along the longitudinal direction of the casing, the ratio of the speaker part and the sign part occupying the entire length in the longitudinal direction of the casing increases. As a result, the ratio of the warning light portion is reduced, and the warning light function is affected, for example, the number of rotating lights that can be installed is reduced. Although it may be possible to secure the necessary warning area by reducing the width of the speaker part and the sign part without changing the overall length in the longitudinal direction of the housing, the number of speakers and the sign area are constrained on the contrary. So it is not a realistic solution.

  Further, as in Patent Document 1, in a warning light in which a speaker unit is disposed at a middle position of the housing and the sound emitting portion of the speaker is located at the lower part of the front surface of the middle portion of the housing, a housing above the sound emitting portion is provided. Since a horizontally long sign part can be provided on the front of the body, the warning part, the speaker part, and the sign part can be configured without difficulty without increasing the total length of the warning light. However, since the sound emitting part of the speaker protrudes to the lower part of the middle position of the housing, the overall height of the housing increases, and various problems such as an increase in wind pressure and wind noise or a decrease in design are caused.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a markered diffused warning light that constitutes a speaker part without restricting the warning part and the sign part.

In order to achieve the above object, the present invention provides a warning light in which light emitters are arranged at a plurality of locations in a housing including a horizontally long translucent glove, and characters and figures are placed on the front surface in the middle of the longitudinal direction of the housing. In addition to providing a sign part to be displayed , a speaker having a sound emitting part is arranged in a housing behind the sign part, and a direction of the sound emitting part of the speaker is behind the sign part and in the sounding part of the speaker. In the above, a sound emission port is opened on the upper surface and / or the lower surface on the sound emission direction side of the sound emission part of the speaker .

  The horizontally long casing is a hollow structure with translucent gloves on both sides, and emits a warning light such as a rotating lamp that emits warning light on the mounting substrate at the bottom of the casing, and emits a warning sound. Install the speaker. The luminous body includes a high-luminance light emitting LED in addition to the rotating lamp. The sign section provided in front of the middle position in the longitudinal direction of the housing displays the type of emergency vehicle and the like on a horizontally long panel with characters and figures. The panel also serves as a part of the normally translucent housing and is clearly visible at night when illuminated by a backlight. Install an appropriate number of speakers in the housing behind the sign. The speaker emits a warning sound and a human voice reproduced from the electronic siren amplifier at a high volume, and a speaker driver and a speaker horn are combined.

  A sound emission port that communicates with the front side of the speaker opens at the upper surface and / or the lower surface of the middle position in the longitudinal direction of the housing. The sound emission opening can have an opening area comparable to the sound emission area of the speaker, and is opened by partially punching a thin upper surface plate or lower surface plate that forms the upper and lower surfaces of the housing. An appropriate number of sound outlets formed on the upper and lower plates of the housing is selected according to the number of speakers installed. In addition, the formation position of the sound emission opening is selected in accordance with the arrangement of the speakers, such as the front and rear portions and the middle portion of the upper surface plate and the lower surface plate of the housing. Speaker sound is emitted to the outside from a sound emission opening formed on the upper surface and / or the lower surface of the housing.

In the present invention, a plurality of speakers are juxtaposed in a housing behind the sign section, and the speaker is disposed behind the sign section and in the directing direction of the sound emitting section of each speaker. The sound emission port can be opened on the upper surface and / or the lower surface on the sound emission direction side of the sound emission part . There is a relatively large space behind the sign. By arranging the speakers here, a plurality of speakers can be arranged side by side with a margin.

  When a plurality of speakers are juxtaposed in the housing behind the sign part, at least two speakers that are opposite to each other in the front-rear direction can be juxtaposed in the housing. Accordingly, a warning sound is emitted from at least two speakers in opposite directions, and effective sound emission can be performed over a wide range. In addition, at least two speakers in opposite directions should be of two different types, such as a normal speaker that emits sound and a siren that emits siren sound, and the sound emission direction suitable for each type should be selected. Can do.

  According to the warning light of the present invention, a sign part is formed in front of the middle position in the longitudinal direction of the casing including the horizontally long translucent glove, a speaker is provided in the casing behind the sign part, and the upper surface of the casing and Since the sound outlet of the speaker is opened on the lower surface, the warning area can be set sufficiently and sufficiently without being restricted by the sound outlet of the speaker. In addition, an appropriate number of sound emission ports can be easily opened in an appropriate size on the upper and lower surfaces of the housing while the housing is thin. Further, the vertical height of the middle portion and the both end portions in the longitudinal direction of the housing can be made substantially uniform, and a thin, diffused warning light with a sign that has less unevenness and is excellent in design can be provided.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 shows a diffused warning light 1 with a sign installed on the roof of a vehicle. The warning light 1 is horizontally long and flat as a whole, and a pair of left and right translucent globes 3 and a central housing 2 are connected in a straight line in the horizontal direction to form a horizontally long and flat housing 4. The bottom of the housing 4 is composed of a horizontally long mounting board 7 shown in FIGS. 4 and 5, and the mounting board 7 is connected to the vehicle roof via a mounting bracket (not shown). Further, a speaker part A and a sign part B are disposed at an intermediate position of the housing 4, and a warning part C is disposed at both longitudinal ends of the housing 4.

  The housing 2 is a flat cylindrical resin molded product having a rectangular shape in plan view. If the X direction in FIG. 1 is the horizontal direction and the Y direction perpendicular to the X direction is the front-rear direction, the front surface of the housing 2 forms a rectangular sign B that is long in the X (lateral) direction. A pair of speakers 11 are juxtaposed in the X direction on the mounting substrate 7 constituting the bottom of the housing 2. A pair of globes 3 are connected to both ends of the housing 2 in the X direction, and a light emitter 21 such as a rotating lamp is installed on the mounting substrate 7 constituting the bottom of each globe 3 as shown in FIG. Each globe 3 is a red light-transmitting resin molded product, and the light emitted from the light emitter 21 is turned red to enhance the warning effect and emitted to the outside.

  The sign part B constituting the horizontally long front surface of the housing 2 is, for example, a panel structure with an internal lamp, and a backlight is provided in a space surrounded by a translucent sign panel 31 and a reflector 32 as shown in FIG. 33 is deployed. For example, the sign panel 31 is coated and formed with characters “mark lamp”, and the backlight 33 is illuminated to improve visibility. The sign panel 31 shown in FIG. 5 forms the front portion of the housing 2, but may be separated from the housing 2. A pair of speakers 11 arranged side by side in the housing 2 behind the marking portion B are obtained by connecting the drive portion 12 and the sound emitting portion 13 coaxially as shown in FIG. Side by side. The mounting substrate 7 can be a flat extruded product that also serves as the mounting substrate of the light emitter 21.

  The warning light 1 described above is provided with a sign portion B in front of the intermediate position of the housing 4 and emits the speaker sound of the speaker 11 to the outside on the upper surface m and the lower surface n of the housing 2 behind the sign portion B. The sound mouth 5 is opened. For example, the sound emission ports 5 are formed at a total of eight locations, two front portions and two rear portions on the upper surface m and the lower surface n of the housing 2. The shape of each sound outlet 5 is a rectangle having the same size as the rectangular opening of the sound emitting portion 13 of the speaker 11. Two front sound outlets 5 on the upper surface m are provided directly above the sound output portion 13 of the pair of speakers 11, and two front sound outlets 5 on the lower surface n are provided on the sound output portions of the pair of speakers 11. 13 is provided directly under the front. As indicated by the broken-line arrows in FIG. 5, the sound from the sound emitting portion 13 of each speaker 11 is emitted to the outside from the front sound emitting ports 5. The back surface of the reflecting plate 32 of the marker part B facing the tip of the sound emitting part 13 of the speaker 11 is curved in a convex shape so that the sound is smoothly emitted.

  In addition, the two sound outlets 5 at the front and rear of the upper surface m of the housing are the front and rear object shapes with respect to the center line parallel to the horizontal direction of the housing 2, and the sound outlets 5 at the two front and rear positions of the lower surface n Thus, the cross-sectional shapes of the front part and the rear part of the housing 2 are the same. Such a front-rear target-shaped housing 2 has no front-rear directionality, and the assembly workability to the mounting substrate 7 is good. Further, if the housing 2 is divided into a front part and a rear part and the front part and the rear part divided into two parts are manufactured with the same mold, the manufacturing cost can be reduced.

  Speaker sounds of the pair of speakers 11 are emitted in all directions, front, side, and rear, of the housing 4 from the sound emission ports 5 mainly at the front, top, bottom, left, and right of the housing 2. This sound emission is satisfactorily performed without any problem in terms of volume since each sound emission port 5 is formed with a sufficient opening area. Further, the housing 2 can have a minimum vertical height sufficient to place the speaker 11 horizontally, and the housing 4 has a thin appearance and excellent design. The sound emission opening 5 provided at the rear part of the housing 2 emits a part of the speaker sound, and this sound emission has a good acoustic effect on the speaker sound from the front sound emission opening 5. Further, the sound outlet 5 formed on the lower surface n of the housing 2 can be used as a drain hole for quickly discharging rainwater that has entered the housing 2 from the sound outlet 5 on the upper surface m.

  It is also effective to eliminate the sound emission port on the upper surface m (or the lower surface n) of the housing 2 and form the sound emission port only on the lower surface n (or the upper surface m). In this case, by increasing the opening area of the sound emission port on the lower surface n (or the upper surface m), it is possible to secure a sufficient volume of the emitted speaker sound. Furthermore, sound emission openings can be opened at the side portions on both ends in the X direction of the upper surface m of the housing 2. That is, it is possible to open sound emission openings on the upper surface of the globe 3 adjacent to the housing 2, and the formation position and number of these sound emission openings can be appropriately selected depending on the type of warning light.

  Next, another embodiment will be described with reference to FIGS.

  In FIG. 6, a pair of speakers 11 are arranged in the housing 2 so that the front and rear directions are reversed. By simultaneously operating the pair of speakers 11, speaker sounds can be emitted in a similar volume in the front-rear direction of the housing 4. In this case, only the sound emission port closest to the sound emission unit 13 of the pair of speakers 11 may be formed in the housing 2.

  In FIG. 7, one speaker 11 and one motor siren 11 ′ are arranged side by side in the housing 2 in the same forward direction. In this case, the speaker 11 and the motor siren 11 ′ operate separately, the speaker sound is emitted from all the sound emission ports 5, and the siren sound is emitted from all the sound emission ports 5.

  The warning light of the present invention is not limited to the above-described embodiment, and it goes without saying that various changes can be made without departing from the gist of the present invention.

  The warning light of the present invention is a diffused warning light with a sign installed in an emergency shelter of a building, a factory workplace, a work vehicle, etc. in addition to a warning light installed on the roof of an emergency vehicle. It can be used effectively for lights.

It is a perspective view which shows embodiment of the warning light concerning this invention. It is a top view of the warning light of FIG. It is a front view of the warning light of FIG. It is a bottom view of the warning light of FIG. FIG. 3 is an enlarged cross-sectional view taken along line TT. It is a top view which shows other embodiment of the warning light which concerns on this invention. It is a top view which shows other embodiment of the warning light which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Diffuse type warning light 2 Housing 3 Globe 4 Case 5 Sound emission port 7 Mounting board 11 Speaker 11 'Motor siren 21 Luminescent body 31 Marking panel A Speaker part B Marking part C Warning part m Upper surface n Lower surface

Claims (3)

In a warning light in which light emitters are arranged at a plurality of locations in a housing including a horizontally long translucent glove,
A sign part for displaying characters and figures is provided in front of the longitudinal intermediate position of the casing , and a speaker having a sound emitting part is disposed in the casing behind the sign part. A warning light characterized in that a sound emission port is opened on the upper surface and / or the lower surface on the sound emission direction side of the speaker in the direction of the sound emission portion behind the speaker. . A plurality of speakers are juxtaposed in a housing behind the sign section, and the rear of the sign section in the housing and in the direction of sound emission section of each speaker than the sound output section of the speaker. The warning light according to claim 1, wherein a sound emission port is opened on an upper surface and / or a lower surface on a sound emission direction side .   The warning light according to claim 2, wherein at least two loudspeakers that are opposite to each other in the front-rear direction are arranged in parallel in a housing behind the sign part.