JP2005316540A - Alarm - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alarm for improving the visibility of announcement display without exposing a light source to the outside. <P>SOLUTION: This alarm 10 is provided with an announcing member 19 constituted of light guiding members for announcing the abnormality of an object to be detected, a light source 17 for emitting light to be guided in the announcing member 19 and a case body 10a for storing the announcing member 19 and a light source 17, and configured to make announcement by making the announcing member 10 emit light according to the light of the light source 17 guided in the announcing member 19. The announcing member 19 is formed by forming an incident part 19i at one end terminal opposite to the light source 17 like protrusion with a predetermined curvature, and closing an opening 10b formed on one surface of the case body 10a, and arranging an outgoing part 19r at the other end side by protruding it from the opening 10b to the outside corresponding to the setting place where the device main body is set in order to make the light guided in the announcing part 19 outgo to a user who makes announcement. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an alarm device, and more particularly to an alarm device that notifies an abnormality of at least one detection object such as gas leakage, incomplete combustion, or fire.

  Generally, the alarm device includes carbon monoxide (CO) gas generated due to incomplete combustion, a gas alarm device that issues an alarm when the concentration of the leaked gas exceeds a predetermined alarm concentration, and a change in ambient temperature. There are fire alarms that detect the occurrence of a fire and give an alarm, and composite alarm devices that integrate a gas alarm device and a fire alarm device.

  For example, the gas alarm device is detachably mounted on condition that it is replaced every certain period, and the magnitude of the detection signal output by the gas detection unit exceeds the alarm level. An alarm determination unit for determining, an alarm sound generating unit for generating a gas leak alarm sound based on the determination of the alarm determination unit, a signal output unit for outputting an alarm signal to the outside, and various instructions and alarm display And an alarm unit such as a display unit.

  In addition, city gas alarms for city gas, which is lighter than air such as city gas, provided in ordinary houses are within a horizontal distance of 8 centimeters from the gas appliance on the same wall or ceiling surface as the gas appliance. The lower end of the alarm is installed at a position within 30 cm from the ceiling.

  As described above, since the fire alarm and the city gas alarm are close to each other, a composite gas fire alarm in which the fire alarm and the city gas alarm are integrated has been provided. And this applicant has provided the gas fire alarm device with few false alarms by integrating a gas alarm device and a fire alarm device, and integrating and processing the signal of a gas sensor and a fire sensor (patent document 1). reference).

Furthermore, in order to facilitate the management of the gas alarm device, a gas alarm device has been proposed in which the above-described alarm unit performs a monitor display that can be identified according to the cause of the alarm sound (see Patent Document 2). In this gas alarm device, the alarm unit is configured to be capable of displaying a plurality of types of blinking, and the alarm unit is configured to perform alarm display with blinking displays of different patterns.
JP 2000-30165 A JP 2001-216581 A

  As described above, an alarm device having a gas leak alarm function has an installation method defined according to the type of gas to be detected.For example, when the gas to be detected is LP gas, on the wall surface in the same room as the combustor, When the horizontal distance from the combustor (from the gas plug in the Building Standards Act) is within 4m and the height from the floor to the top of the alarm is within 30cm, and the detection target gas is city gas As described above, it is to be installed on the ceiling surface, the wall surface in the vicinity of the ceiling surface, and the like.

  FIG. 6 is a cross-sectional view showing an example of a cross section of an alarm display portion of a conventional alarm device. In FIG. 6, reference numeral 10 denotes an alarm device, and a front surface of a housing 10 a forming the alarm device 10 has substantially the same outer shape as a discrete LED (hereinafter also referred to as an LED) 170 provided therein. The hole 10b is formed, and the tip of the LED 170 is penetrated from the through-hole 10d to the outside, so that the tip of the LED 170 protrudes from the surface of the housing 10a. Even if it is set above or below, the visibility of the alarm display has been improved by allowing a user or the like to visually recognize a part of the protruding LED 170.

  However, the conventional alarm device shown in FIG. 6 has a problem in that static electricity enters the housing 10a through a gap formed between the through hole 10d of the housing 10a and the LED 170, and adversely affects members such as the LED 170. Was. Therefore, in order to prevent failure of the LED 170 due to static electricity, the pair of terminal pins 171 of the LED 170 fixed to the wiring board 18 must be covered with an insulating member 172 such as a tube, which complicates the assembling work. It was the cause.

  Therefore, in view of the above-described problems, an object of the present invention is to provide an alarm device that improves the visibility of notification display without exposing a light source to the outside.

  In order to solve the above-mentioned problems, an alarm device according to claim 1, which is made according to the present invention, includes a notifying member comprising a light guide member for notifying abnormality of a predetermined detection object, and guiding the inside of the notifying member. In an alarm device comprising: a light source that emits light to be emitted; a notification member; and a housing that houses the light source, wherein the notification member is caused to emit light by the light of the light source guided into the notification member. The notifying member forms an incident portion on one end facing the light source in a convex shape with a predetermined curvature, and closes an opening provided on one surface of the casing. The light emitting portion on the other end side is projected from the opening to the outside so that the light guided in the notification member is emitted toward the user who performs the notification. .

  According to the alarm device of the present invention described in claim 1, the notifying member has a convex incident portion with a predetermined curvature opposed to the light source, and an emission portion on the opposite side is one surface of the housing. In addition to closing the opening provided in the door, the light guided through the notification member is arranged in a state protruding from the opening to the outside of the housing so as to be emitted toward the user who performs the notification. And when abnormality of a detection target object is detected, the light source corresponding to this detection target object will be turned on, and the light which the light source emitted will enter into the inside from the incident part of an alerting | reporting member. And the light guide | induced inside the alerting | reporting member is radiate | emitted toward the user from the radiation | emission part.

  In order to solve the above-mentioned problem, the invention according to claim 2 is the alarm device according to claim 1, wherein the notification member is further provided to a user who is guided by the light guided through the notification member. The emission part is formed as an inclined surface corresponding to an installation place where the alarm device main body is installed so as to emit toward the camera.

  According to the alarm device of the present invention described in claim 2, the emitting portion of the notification member is formed to be an inclined surface corresponding to an installation place where the alarm device main body is installed, and the inclined surface is formed on the casing. It is arranged protruding from the surface. And the light guide | induced inside the alerting | reporting member is radiate | emitted toward the user from the inclined surface.

  In order to solve the above-mentioned problem, the invention according to claim 3 is the alarm device according to claim 1 or 2, wherein a plurality of the notification members are connected and the surface thereof is continuous with the surface of the housing. It further includes a connecting member that closes the opening so as to be on the same plane.

  According to the alarm device of the present invention described in claim 3, the plurality of notification members are connected by the connecting member, and the connecting member has an opening portion so that the surface thereof is continuous with the surface of the housing. It is arranged by blocking. And light is radiate | emitted toward a user from the emission part of each alerting | reporting member protruded from the surface of the housing | casing, and a user visually recognizes an alerting | reporting member with the light.

  The invention according to claim 4, which has been made to solve the above problem, is the alarm device according to any one of claims 1 to 3, wherein a plurality of the light sources having different display colors are opposed to an incident portion of the notification member. And illuminating the light source corresponding to a predetermined display color corresponding to the abnormality of the detection object.

  According to the alarm device of the present invention described in claim 4, when a plurality of light sources having different display colors are arranged to face the incident portion of the notification member and an abnormality of the detection target is detected, the detection target A light source corresponding to a predetermined display color corresponding to the abnormality of the object is emitted. And the light which the light source emitted is guided in the inside of an alerting | reporting member, and is radiate | emitted toward a user from the radiation | emission part.

  As described above, according to the alarm device of the present invention described in claim 1, the notifying member causes the convex incident portion with a predetermined curvature to face the light source, and the opposite emission portion is connected to the housing. The opening provided on one surface of the body is closed, and the light guided through the notification member is arranged so as to protrude from the opening to the outside of the housing so as to be emitted toward the user who performs the notification. Therefore, even if the emitting portion of the notification member protrudes from the opening of the housing in order to improve the visibility, the portions other than the protruding portion are blocked and prevent static electricity from entering the housing. Therefore, it is possible to improve the safety of the alarm device and eliminate the need for countermeasures against static electricity, so that the work efficiency during the assembly of the alarm device can be improved. Furthermore, the light emitted from the light source is surely entered into the notification member by the curvature formed in the incident part, and the light emitted from the emission part protruding from the surface of the alarm housing is directed to the user. Since it is possible for the person to visually recognize the notification member more reliably, the visibility at the time of alarm can be improved.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the emitting part of the notification member is formed to be an inclined surface corresponding to the installation place where the alarm device main body is installed. Therefore, it is possible to make the inclined surface project from the surface of the housing so that the inclined surface faces the user, and the light emitted from the inclined surface goes to the user, so that the user can visually recognize it. It is possible to increase the visible area, and the visibility at the time of alarm can be further improved.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, a plurality of notification members are connected by the connecting member, and the opening of the housing is closed by the connecting member. Therefore, it is possible to easily assemble a plurality of notification members to the housing, and the opening can be reliably closed, so that even if a plurality of notification members are used, it is ensured that static electricity enters the housing. In addition, the work efficiency at the time of assembling the alarm device can be further improved.

  According to the invention described in claim 4, in addition to the effects of the invention described in any one of claims 1 to 3, a plurality of light sources having different display colors are arranged facing the incident portion of the notification member and detected. Since a light source corresponding to a predetermined display color corresponding to an abnormality of the detection target is caused to emit light, a notification member is caused to emit light in an arbitrary display color, and a plurality of displays corresponding to the same notification member Since the color light source can emit light, the visibility at the time of alarm can be further improved.

  Hereinafter, referring to the drawings of FIG. 1 to FIG. 5, an embodiment in which a warning sound and a warning display are used to notify when leakage of methane gas (detection target) is detected by an alarm device according to the present invention. explain. In addition, the same code | symbol is attached | subjected to the part which is the same as that of what was demonstrated in the prior art, or the detailed description is abbreviate | omitted.

  Here, FIG. 1 is a front view of the alarm device according to the present invention, FIG. 2 is a cross-sectional view showing a cross section in the direction of the arrow passing through the straight line AA shown in FIG. 1, and FIG. 4 is a top view of the member, FIG. 4 is a partial cross-sectional view for explaining another best mode of the notification member, FIG. 5A is an alarm installed near the ceiling, and FIG. 5B is a floor. It is a figure which shows an example of the alerting | reporting member each suitable for the alarm device installed in the wall surface of the surface vicinity.

  As shown in FIGS. 1 and 2, the alarm device 10 includes an alarm unit 16 that emits an alarm sound by a synthesized voice, a buzzer, and the like, and a light guide member for notifying an abnormality of a predetermined detection target. A notification member 19, a light source 17 that emits light that guides the inside of the notification member 19, and a casing 10 a that is formed in a substantially box shape from the notification member 19 and a synthetic resin that houses the light source 17. .

  When the detection object is LP gas, the alarm device 10 is located on the wall surface in the same room as the combustor, within a horizontal distance of 4 m from the combustor, within 30 cm in height from the floor surface to the upper end of the alarm device, When the object is city gas, it is fixed to an installation location corresponding to its sensing performance, such as a ceiling surface and a wall surface in the vicinity of the ceiling surface, via a fixing member provided on the back side of the housing 10a. And it operates by the electric power supplied from the power supply part (not shown) which consists of commercial power supplies etc., makes the said notification member 19 light-emit with the light of the said light source 17 led in the said notification member 19, and abnormality of a detection target object Is notified.

  The light source 17 includes a first light source 17A, a second light source 17B, and a third light source 17C. For example, a light emitting element such as an LED, a bulb, or a lamp can be used. The case where is used will be described. The light sources 17 are mounted on the wiring board 18 as shown in FIG.

  The three notification members 19A, 19B, and 19C corresponding to the first light source 17A, the second light source 17B, and the third light source 17C described above are provided. The notification members 19 are formed of a light guide member such as a synthetic resin in a substantially rectangular parallelepiped shape. The incident portion 19i on one end facing the light source 17 is formed in a convex shape with an arbitrary predetermined curvature, and this shape allows more light from the light source 17 to enter the notification member 19. Making it possible.

  The emitting portion 19r on the other end side of the notifying member 19 is an installation place where the casing 10a (device main body) is installed so that the light guided through the notifying member 19 is emitted toward the user who should be notified. In correspondence with the above, it is formed in a convex shape protruding outward from the opening 10b of the housing 10a. Further, the emitting portion 19a on the side opposite to the one end side is formed in a convex shape with an arbitrary predetermined curvature, like the incident portion 19i. The predetermined curvature may be different between the incident part 19i and the emission part 19r.

  Each of the incident portion 19i and the emission portion 19r has a cross section in the width direction intersecting with the longitudinal direction of the notification member 19 formed on an arc. The surface of the emission portion 19r is subjected to embossing, whereby the notification member 19 The light emitted from the inside is diffused. Moreover, the surface of the side surface parallel to the longitudinal direction of the notification member 19 is mirror-finished to prevent light guided inside the notification member 19 from leaking from the side surface to the outside.

  The alarm device 10 further includes, for example, a connecting member 20 that connects three (a plurality of) notification members 19 and closes the opening 10b so that the surface thereof is the same surface as the surface of the housing 10a. The connecting member 20 is connected in the vicinity of the emitting portion 19r of each notification member 19, and as shown in FIG. 3, the outer shape thereof is a substantially rectangular flat plate shape corresponding to the outer shape of the opening 10b of the housing 10a. Is formed. The surface of the connecting member 20 is formed to be the same as the surface of the housing 10a.

  The rear surface of the connecting member 20 is provided with a substantially elliptical protrusion 20a that is smaller than the outer shape of the front surface, and the protrusion 20a has a claw-like shape that engages with the opening 20b of the housing 10a. A pair of locking pieces 20b is formed. And the alerting | reporting member 19 can be attached to the housing | casing 10a by one-touch by latching the latching piece 20b to the opening part 20b. By comprising in this way, the some alerting | reporting member 19 can be easily attached with respect to the opening part 10b of the housing | casing 10a.

  The alarm device 10 further outputs a control unit (not shown) composed of a microprocessor (MPU) and the like and a concentration signal corresponding to the gas concentration detected at the installation location, such as a semiconductor gas sensor, a catalytic combustion gas sensor, etc. And a gas detection unit 13 including a gas sensor suitable for the device. The control unit is connected to each light source 17 so that the above-described light sources 17A to 17C can be turned on and off.

  The control unit detects the methane gas and the CO gas at different timings based on the concentration signal from the gas detection unit 13, and notifies the abnormality when the concentration satisfies each abnormality determination condition. A predetermined light source 17 is caused to emit light. In this best mode, the first light source 17A is assigned a gas leak, the second light source 17B is assigned an incomplete combustion, and the third light source 17C is assigned an energized state.

  When the alarm device 10 having the above-described configuration detects the concentration of the detection target that has reached an abnormal level, the alarm device 10 lights a predetermined light source 17 in order to notify the abnormality. The light emitted from the light source 17 enters the notification member 19 from the incident portion 19i, and the light guided through the light emitting portion 19i is emitted from the emitting portion 19r to the outside of the housing 10a, that is, toward the user. The In the best mode, the incident portion 19i is formed in a convex shape with a curvature, and the surface thereof is subjected to graining, so that it is diffused to the outside of the alarm device 10. Light is emitted toward the user.

  Specifically, when an abnormal concentration of methane gas is detected by the control unit, the first light source 17A is made to shine, and the notification member 19A is caused to emit light by the light. As a result, the user or the like recognizes the occurrence of gas leakage by visually recognizing the emitting portion 19r of the notification member 19A. Further, when an abnormal concentration of CO gas is detected by the control unit, the second light source 17B is made to shine, and the notification member 19B is caused to emit light by the light. As a result, the user or the like recognizes the occurrence of incomplete combustion by visually recognizing the emitting portion 19r of the notification member 19B.

  As described above, according to the alarm device 10 of the present invention, the notification member 19 makes the convex incident portion 19i with a predetermined curvature face the light source 17, and the opposite emission portion 19r is connected to the housing. The opening 10b provided on one surface of the body 10a is closed, and the light guided through the notification member 19 is emitted from the opening 10b to the housing 10a so as to correspond to the installation location so as to be emitted toward the user who performs notification. In order to improve visibility, even if the emitting portion 19r of the notification member 19 is protruded from the opening 10b of the housing 10a, the portions other than the protruding portion are blocked. Since it is possible to prevent static electricity from entering the housing 10a, the safety of the alarm device 10 can be improved, and countermeasures against static electricity are not required. Work efficiency is also improved It can be. Furthermore, the light emitted from the light source 17 is reliably incident on the notification member 19 due to the curvature formed in the incident portion 19i, and is emitted from the emission portion 19r protruding from the surface of the housing 10a corresponding to the installation location of the alarm device 10. Since the emitted light is directed to the user, the user can be surely visually recognized the notification member 19, and thus the visibility at the time of alarm can be improved.

  Moreover, since the some alerting | reporting member 19 was connected with the connection member 20, and the opening part 10b of the housing | casing 10a was block | closed by this connection member 20, the some alerting | reporting member 20 is easily assembled | attached with respect to the housing | casing 10a. Since the opening 10b can be reliably closed, it is possible to reliably prevent static electricity from entering the housing 10a even when a plurality of notification members 19 are used. The work efficiency at the time of assembly can be further improved.

  Next, although the alarm device 10 described above has described the case where the notification member 19 emits light with a single display color, the present invention is not limited to this, and the notification member 19 emits light with a plurality of display colors. You can also For example, in the configuration described above, when the notification member 19A is caused to emit light using the two-color light sources 17, the fourth light source 17A is added to the incident portion 19i of the notification member 19A as shown in FIG. This can be dealt with by arranging the light source 17D.

  When the alarm device 10 performs a first-stage alarm, only the blue first light source 17A is caused to emit light, thereby causing the notification member 19A to emit light in blue. When the alarm device 10 performs the second-stage alarm, if the notification member 19A emits red light by emitting only the red fourth light source 17D, the change from the second stage to the second stage is performed. Can be recognized by a user or the like. Further, if both the first light source 17A and the fourth light source 19D are caused to emit light, the notification member 19A can be caused to emit light in purple, so that variations of the notification form can be increased.

  Therefore, a plurality of light sources 17 having different display colors are arranged to face the incident portion 19i of the notification member 19, and the light sources 17 corresponding to the display colors determined in advance corresponding to the detected abnormality of the detection target are emitted. Since it did in this way, since the alerting member 19 can be light-emitted by arbitrary display colors, and the light source 17 of the some display color corresponding to the same alerting member 19 can be light-emitted, the visibility at the time of an alarm is further improved. Can be improved.

  Note that the alarm device 10 shown in FIG. 4 has a configuration in which the surface of the connecting member 20 other than the projecting emitting portion 19r is covered with a decorative seal member 21, unlike the configuration described above. The decorative seal member 21 is formed of an insulating member or the like, and the surface thereof is formed to be the same as the surface of the housing 10a. Thus, by forming the decorative seal member 21 with an insulating member or the like, it is possible to prevent static electricity from entering the housing 10a even more reliably.

  In the above-described best mode, the case where the convex emitting portion 19r with a predetermined curvature is projected from the surface of the connecting member 20 that is a continuous surface with the surface of the housing 10a has been described. However, the present invention is not limited to this, and can have various shapes.

  For example, in the case of the alarm device 10 for city gas attached to the wall surface near the ceiling, the light is emitted so as to be an inclined surface for emitting the light guided in the notification member 19 in the emission direction L shown in FIG. By forming the portion 19r and projecting it from the surface of the connecting member 20, the user looking up from the lower side of the alarm device 10 can visually recognize the inclined surface, and thus the visibility at the time of alarm can be improved.

  Similarly, in the case of the LP gas alarm device 10 attached to the wall surface in the vicinity of the floor surface, it becomes an inclined surface for emitting the light guided in the notification member 19 in the emission direction L shown in FIG. By forming the emission part 19r, it is possible to improve the visibility at the time of alarm of the user who looks down at the alarm device 10 from above.

  Therefore, the emitting portion 19r of the notification member 19 is formed to have an inclined surface corresponding to the position (installation location) where the main body of the alarm device 10 should be installed and the visual recognition position (region) of the user viewing the alarm device 10. By doing so, it becomes possible to project the inclined surface from the surface of the housing 10a so that the inclined surface faces the user, and the light emitted from the inclined surface is directed to the user, so that the user can visually recognize it. It is possible to increase the visual recognition area, and the visibility at the time of alarm can be further improved.

  In the above-described best mode, the case of the alarm device 10 that warns of gas leak has been described. However, the present invention is not limited to this, and warns of occurrence of gas leak, incomplete combustion, and fire. Various forms such as application to a composite alarm device can be adopted.

It is a front view of the alarm device which concerns on this invention. It is sectional drawing which shows the cross section of the arrow direction which passes along the straight line AA shown in FIG. It is a top view of the alerting | reporting member in FIG. It is a fragmentary sectional view for demonstrating the other best form of an alerting | reporting member. (A) is a figure which shows an example of the alerting | reporting member each suitable for the alarm device installed in the ceiling vicinity, (b) is each an alarm device installed in the wall surface near a floor surface. It is sectional drawing which shows an example of the cross section of the alarm display part of the conventional alarm device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Alarm 10a Housing | casing 10b Opening part 17 Light source 19 Notification member 19i Incident part 19r Output part 20 Connecting member

Claims (4)

A notification member comprising a light guide member for notifying abnormality of a predetermined detection object, a light source for emitting light for guiding light in the notification member, a housing for housing the notification member and the light source, In the alarm device that performs the notification by causing the notification member to emit light by the light of the light source guided into the notification member,
The notifying member forms an incident part on one end side facing the light source into a convex shape with a predetermined curvature, and closes an opening provided on one surface of the casing, The alarm is characterized in that the light emitting portion on the other end side is projected from the opening to the outside so that the light guided in the notification member is emitted toward the user who performs the notification. vessel. The notification member is further formed as an inclined surface corresponding to the installation location where the alarm device main body is installed so that the light guided through the notification member is emitted toward the user performing the notification. The alarm device according to claim 1, wherein: The connection member which closes the opening part so that the surface may become the same surface which continues the surface of the case while connecting a plurality of information members. Alarm. A plurality of the light sources having different display colors are arranged to face each other at the incident portion of the notification member, and the light sources corresponding to the display colors predetermined corresponding to the abnormality of the detection target are emitted. The alarm device according to any one of claims 1 to 3.

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