JP2010191986A - Alarm output device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire alarm system wherein various defects caused by an installation structure are dissolved and wherein installation work efficiency and alarm output efficiency are enhanced. <P>SOLUTION: The alarm output device is a base sounder 20 which outputs a prescribed alarm for notifying abnormality of a monitoring area and can be installed to an installation base 10 fixed on a ceiling face 1, and includes: a piezoelectric element 27 for outputting alarm sound; and output device side connection terminals 23 for connecting the base sounder 20 to the installation base 10, provided on a face facing to the installation base 10 in the base sounder 20. In a face parallel to the ceiling face 1, a sound source is disposed in a central position of the base sounder 20, and the output device side connection terminals 23 are disposed in acentric positions of the base sounder 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an alarm output device.

  In order to protect buildings and human lives from house fires, it is effective to install fire detectors that detect fires early and issue warnings. For this reason, when a fire is detected by a fire detector installed in the monitoring area, a fire alarm is output by outputting a transfer signal from this fire detector and sounding an alarm bell or speaker. Has been done.

  However, in a building with high sound insulation such as a hotel, for example, even if an alarm bell installed in a passage is sounded, it may be difficult for a user in the room to hear the alarm sound. In order to solve such problems, an alarm output device (base sounder) that is directly attached to a fire detector in a living room and emits an alarm sound based on the output from the fire detector has been put into practical use. For example, US Pat. No. 6,362,726 discloses a base sounder that can be attached to a fire alarm system. According to such a base sounder, an alarm sound can be output at the same position as the fire detector in the living room, and fire notification can be performed more reliably.

  The structure of such a conventional base sounder will be described. FIG. 21 is a longitudinal sectional view of a conventional base sounder or the like installed on the ceiling surface. As shown in FIG. 21, the conventional base sounder 100 is attached to the ceiling surface 102 via the attachment base 101. And the fire detector 103 was connected to the lower part of this base sounder 100. The base sounder 100 contains electrical components such as a circuit board 104 and a piezo element 105 as a sound source, and an alarm sound output from the piezo element 105 is emitted to the outside of the base sounder 100. Is done. The base sounder 100 is formed with a screw hole 106 which is a through hole. By inserting a long screw 107 into the screw hole 106 and screwing it into the mounting base 101, the base sounder 100 is attached to the mounting base 101. It is fixed. Further, the fire detector 103 is fixed to the base sounder 100 by, for example, engaging the upper end portion of the fire detector 103 with the lower end portion of the base sounder 100.

  Here, wiring holes 108 that are through-holes are provided at substantially center positions in the plane of the mounting base 101 and the base sounder 100 (positions near the center in a plane substantially horizontal to the ceiling surface 102 that is the installation surface (hereinafter the same)). , 109 are formed. Then, the lead wire 110 drawn from the ceiling surface 102 is drawn so as to reach the lower surface of the base sounder 100 through the wiring holes 108 and 109. The lead wire 110 drawn out in this way is connected to a connection terminal 111 provided on the lower surface of the base sounder 100 by screwing. The connection terminal 111 is connected to the circuit board 104, whereby electric power is supplied to each electrical component of the base sounder 100. Further, by connecting the connection terminal 112 of the fire detector 103 to the connection terminal 111, electric power is supplied to each part of the fire detector 103.

US Pat. No. 6,362,726

  However, in the alarm output device such as the conventional base sounder, various problems due to the mounting structure have occurred.

  For example, in conventional base sounder installation work, a base sounder-specific mounting base is first fixed to an installation surface such as a ceiling surface, and the base sounder is fixed to the mounting base. On the other hand, when installing only the fire detector without the base sounder, a dedicated fire detector mounting base different from that for the base sounder is fixed to the installation surface, and the fire detector is fixed to this mounting base. Was.

  Thus, in the past, the installation base to be fixed to the installation surface is different between the installation of the base sounder and the installation of only the fire detector, so the specific installation work differs accordingly. The work has become complicated and causes work errors. In addition, since the installation structure is different in this way, if it is desired to retrofit the base sounder to the monitoring area where only the fire detector is installed, it is necessary to replace the mounting base, and the retrofit of the base sounder is troublesome. Furthermore, since the base sounder is screwed to the mounting base, the mounting work of the base sounder is complicated, such as the need for screws and screwing tools.

  Further, the conventional base sounder has a lead wire for power supply penetrating through the base sounder, and therefore, it is necessary to form a through-hole in the substantially central plane of the base sounder. For this reason, since a sound source such as a piezo element cannot be arranged at the substantially central position of the base sounder, it is difficult to uniformly output sound in each direction around the base sounder, and the alarm output efficiency is reduced. It was difficult to improve.

  The present invention has been made in view of the problem of such a conventional alarm output device, and an object thereof is to provide an alarm output device with improved alarm output efficiency.

  The alarm output device according to claim 1 outputs a predetermined alarm for notifying an abnormality of the monitoring area, and is an alarm output device that can be attached to an attachment base fixed to a predetermined installation surface. A sound source for outputting sound, and a terminal for connecting the alarm output device to the mounting base, and an output device side connection terminal provided on a surface of the alarm output device facing the mounting base. The sound source is disposed at the center position of the alarm output device in a plane parallel to the installation surface, and the output device side connection terminal is disposed at a non-center position of the alarm output device.

  The alarm output device according to claim 2 is the alarm output device according to claim 1, wherein the output device main body having the sound source is disposed at a position closer to the mounting base side than the output device main body. And a base cover having the output device side connection terminal on a surface facing the mounting base.

  The alarm output device according to claim 3 is an alarm output device according to claim 2, wherein the alarm output device can be mounted between the mounting base and an alarm device that detects an abnormality in the monitoring area. A second output device side connection terminal for connecting the alarm output device to the alarm device on a surface of the output device main body facing the alarm device; and the output device main body; The base cover is connected to each other via a connecting column, and the connecting column is arranged at a non-center position of the alarm output device in a plane parallel to the installation surface. The output device side connection terminal and the second output device side connection terminal were electrically connected.

  The alarm output device according to claim 4 is the alarm output device according to claim 3, wherein the output device main body and the base cover are connected to each other via the connecting pillar with a space portion therebetween. The said space part was used as the amplification space part for amplifying the warning sound output from the said sound source.

  According to this alarm output device, the acoustic efficiency can be improved.

FIG. 1 is a perspective view showing a base sounder according to Embodiment 1 of the present invention together with a fire detector and the like. FIG. 2 is an exploded perspective view of the base sounder and the like shown in FIG. FIG. 3 is an enlarged perspective view of the mounting base as viewed from below. FIG. 4 is an enlarged perspective view of the mounting base viewed from above. FIG. 5 is an enlarged perspective view of the base sounder viewed from below. FIG. 6 is an enlarged perspective view of the base sounder viewed from above. FIG. 7 is an exploded perspective view of the base sounder. FIG. 8 is an enlarged perspective view of the sounder body viewed from above. 9 is an exploded perspective view of the sounder body of FIG. FIG. 10 is a longitudinal sectional view showing the base sounder together with the mounting base and the fire detector. FIG. 11 is a plan view of the base cover as viewed from below. FIG. 12 is a perspective view of the fire detector as viewed from above. FIG. 13 is an enlarged perspective view of the connection terminal before connection. FIG. 14 is an enlarged perspective view of the connection terminal after connection. FIG. 15 is a perspective view of a wall sounder and the like according to the second embodiment of the present invention. 16 is an exploded perspective view of the wall sounder and the like shown in FIG. FIG. 17 is a perspective view of the wall sounder viewed from the inside. FIG. 18 is a perspective view of a base beacon and the like according to Embodiment 3 of the present invention. FIG. 19 is an exploded perspective view of the base beacon and the like shown in FIG. FIG. 20 is a perspective view of the base beacon as viewed from above. FIG. 21 is a longitudinal sectional view of a conventional base sounder or the like installed on the ceiling surface.

  Examples of the present invention will be described below. Each example relates to a fire alarm system. The alarm output device in this fire alarm system is connected to an alarm device that detects abnormalities in the monitoring area. When an abnormality is detected by this alarm device, the signal output from this alarm device In response to the input, various predetermined alarm outputs are performed.

  The monitoring area and the specific contents of the monitoring target by the alarm device connected to the alarm output device are arbitrary. For example, a fire detector that detects a fire, a gas leak detector that detects a gas leak, or a fire and gas A combined fire gas leak detector that detects both of these is applicable.

  Moreover, the specific form of the alarm by an alarm output device is arbitrary, For example, an alarm sound can be output or an alarm display can be performed. Furthermore, even when an alarm sound is output, the type and specific sound source of the alarm sound are arbitrary. For example, a buzzer sound is output using a speaker or a piezo element, or a speaker and a voice synthesis unit are used. Can output a voice synthesis message. In the case of performing alarm display, the type of alarm display and the specific light source are arbitrary, and for example, blinking display or lighting display is performed using an LED (Light Emitting Diode) or a laser semiconductor. This alarm output device can be attached to an arbitrary installation surface, for example, can be installed on a ceiling surface or a wall surface.

  Here, the alarm output device according to each of the embodiments has a part of the main features of the mounting structure, thereby improving the mounting efficiency. In general, the mounting base and the alarm output device, the alarm output device and the fire detector, and the structural base and the electrical connection structure between the mounting base and the fire detector are mutually shared. ing. For this reason, the fire detector can be attached to the alarm output device in the same procedure as attaching the alarm output device to the attachment base, or the fire detector can be attached directly to the same attachment base. Due to this commonization, it is possible to make the installation procedure common between the case where only the fire detector is attached to the attachment base and the case where the alarm output device and the fire detector are sequentially attached to the attachment base.

  Moreover, the alarm output device according to each embodiment is improved in the alarm output efficiency by improving the mounting structure. In general, by making it unnecessary to form a through-hole for connecting a lead wire at a substantially central position on the plane of the alarm output device, thereby enabling a sound source and a light source to be arranged at this central position, etc. The alarm effect is improved. Hereinafter, each Example which has a part or all of such a characteristic is described in detail.

  First, a first embodiment according to the present invention will be described. The first embodiment relates to an alarm output device (hereinafter referred to as a base sounder) that is connected to a fire detector as an alarm device and outputs an alarm sound based on an output from the fire detector.

  First, the configuration of each unit will be described. FIG. 1 is a perspective view showing a base sounder according to the first embodiment together with a fire detector and the like, and FIG. 2 is an exploded perspective view of the base sounder of FIG. As shown in these drawings, a mounting base 10 is fixed to the ceiling surface 1 which is an installation surface, and a base sounder 20 is mounted below the mounting base 10. A fire detector 30 is connected further below the base sounder 20. In other words, the base sounder 20 is disposed so as to be sandwiched between the mounting base 10 and the fire detector 30. In the first embodiment, for convenience of explanation, the direction approaching the ceiling surface 1 with the base sounder 20 as the center is referred to as “up” and the direction away from the ceiling surface 1 is referred to as “down” as necessary. When “other than” is used as the installation surface, “upper” can be read as a direction approaching the installation surface, and “lower” can be read as a direction away from the installation surface.

  FIG. 3 shows an enlarged perspective view of the mounting base viewed from below, and FIG. 4 shows an enlarged perspective view of the mounting base viewed from above (a part of screws, lead wires, etc. are omitted). The mounting base 10 is formed in a substantially flat plate shape as a whole, and includes a pair of screw holes 11, a wiring hole 12, and a plurality of base side connection terminals 13. Each screw hole 11 is a through hole for fixing the mounting base 10 to the ceiling surface 1, and the screw 11 a is inserted through the screw hole 11 and screwed into the ceiling surface 1. Can be fixed. The screw hole 11 is formed in a long hole shape, and the attachment position of the attachment base 10 to the ceiling surface 1 can be easily adjusted along the longitudinal direction. Further, the wiring hole 12 is provided at a substantially central position on the mounting base 10, and the lead wire 2 drawn out from the ceiling surface 1 is inserted into the wiring hole 12 toward the base side connection terminal 13. You can pull in. The end portion of the core wire of the lead wire 2 drawn in this way is fixed to the mounting base 10 by a screw 13 f that is in electrical communication with the base-side connection terminal 13.

  The base side connection terminal 13 is an electrical connection means for receiving power from the lead wire 2 and inputting / outputting a signal between the base sounder 20 or the fire detector 30. Furthermore, the base side connection terminal 13 also functions as a connection means for making a structural connection between the mounting base 10 and the base sounder 20 or the fire detector 30. Specifically, the base-side connection terminal 13 is made of two pieces of metal that are disposed substantially parallel to the ceiling surface 1 that is the installation surface (arranged so as to be substantially orthogonal to the attaching / detaching direction of the base sounder 20). The plates 13a and 13b are superposed vertically and fixed to the lower surface of the mounting base 10 with screws 13c.

  The base sounder 20 is structurally and electrically fixed to the mounting base 10 by sandwiching a plate 23a of the output side connection terminal 23 (described later) of the base sounder 20 between the two plates 13a and 13b. can do. Alternatively, the fire detector 30 is structurally and electrically connected to the mounting base 10 by sandwiching a plate 32a of an alarm side connection terminal 32 (to be described later) of the fire detector 30 between the two plates 13a and 13b. Can be fixed to. In particular, the end portion 13d on the non-fixed side of the plate 13a is slightly bent downward, and the other plates 23a and 32a can be smoothly received between the plates 13a and 13b. The end portion 13e on the non-fixed side of the plate 13b is slightly bent so as to enter between the plates 13a and 13b, and the end portion 13e is biased toward the plate 13a by the elastic repulsive force. Therefore, the contact between the plates 13a and 13b and the other plates 23a and 32a is reliably maintained. A specific procedure for this connection will be described later.

  Next, the base sounder 20 will be described. FIG. 5 is an enlarged perspective view of the base sounder viewed from below, FIG. 6 is an enlarged perspective view of the base sounder viewed from above, and FIG. 7 is an exploded perspective view of the base sounder. As shown in these drawings, the base sounder 20 is generally configured to include a base cover 21 and a sounder body 22.

  Of these, the base cover 21 substantially covers the entire mounting base 10 to make the mounting base 10 unexposed from the outside, thereby improving the design, dustproofness, and acoustic characteristics. Specifically, as shown in FIG. 6, the base cover 21 is formed in a hollow bowl shape having a slightly larger diameter than the mounting base 10, and the mounting base 10 can be accommodated therein.

  An output device side connection terminal 23 is provided on the upper surface of the base cover 21. The output device side connection terminal 23 is an electrical connection unit that receives power from the mounting base 10 and inputs and outputs signals to and from the mounting base 10. The output device side connection terminal 23 functions as a connection means for structurally connecting the base cover 20 to the mounting base 10. Specifically, the output device side connection terminal 23 is formed of a single metal plate 23 a disposed substantially parallel to the ceiling surface 1. The plate 23 a is arranged at a distance slightly above the upper surface of the base cover 21, and is fixed to the base cover 21 with screws 24 at the ends thereof. The base sounder 20 can be structurally and electrically fixed to the mounting base 10 by sandwiching the plate 23a between the two plates 13a and 13b of the base side connection terminal 13 of FIG. . A specific procedure for this connection will be described later.

  Next, the sounder body 22 will be described. 8 is an enlarged perspective view of the sounder body viewed from above, FIG. 9 is an exploded perspective view of FIG. 8, and FIG. 10 is a longitudinal sectional view showing the base sounder together with a mounting base and a fire sensor. The sounder main body 22 accommodates main electrical components of the base sounder 20 and corresponds to the output device main body in the claims. Specifically, the sounder main body 22 is formed in a hollow disk shape having substantially the same diameter as the fire detector 30 of FIG. 1 by combining the upper housing 25a and the lower housing 25b, and a circuit board is formed in the inside thereof. 26 is accommodated. On the circuit board 26, electrical components of the base sounder 20, for example, a central control unit and a power supply control unit (not shown) are arranged. In addition, a piezo element 27 that is a sound source of an alarm sound is arranged at a position near the upper side of the sounder main body 22 in the approximate center of the plane. The piezo element 27 is electrically connected to the circuit board 26, and expands and contracts when a voltage is applied to generate an alarm sound.

  5 and 7, a second output device side connection terminal 28 is provided on the lower surface of the sounder body 22. The second output device side connection terminal 28 is an electrical connection means for supplying power to the fire detector 30 of FIG. 1 and inputting / outputting signals to / from the fire detector 30. Further, the second output device side connection terminal 28 functions as a connection means for making a structural connection with the fire detector 30. Here, the position and shape of the second output device side connection terminal 28 in the sounder body 22 are substantially the same as the position and shape of the base side connection terminal 13 in the mounting base 10. That is, the second output device side connection terminal 28 is configured by vertically superposing two metal plates 28a and 28b arranged substantially parallel to the ceiling surface 1 (not shown). It is fixed to the lower surface with screws 28c. And, by sandwiching a plate 32a of a sensor side connection terminal 32 (to be described later) of the fire detector 30 between the two plates 28a, 28b, the fire detector 30 is structurally and electrically connected to the base sounder 20. Can be fixed to. In particular, the end portion 28d on the non-fixed side of the plate 28a is slightly bent downward, and smoothly receives the plate 32a between the plates 28a and 28b. Further, the end portion 28e on the non-fixed side of the plate 28b is slightly bent so as to enter between the plates 28a and 28b, and the end portion 28e is biased toward the plate 28a by the elastic repulsive force. Therefore, the contact between the plates 28a, 28b and the plate 32a is reliably maintained. A specific procedure for this connection will be described later.

  Next, the mutual connection structure of the base cover 21 and the sounder body 22 configured as described above will be described. FIG. 11 is a plan view of the base cover as viewed from below. As shown in FIGS. 7 to 11, among the both side surfaces of the base cover 21, a side surface (lower surface) facing the sounder main body 22 has a plurality of hollow cylindrical connection pillars extending toward the sounder main body 22. 21a and 21b are provided integrally. Among these connection pillars 21a and 21b, some of the connection pillars 21a facilitate manufacturing alignment, drain holes when water droplets accumulate from the back of the ceiling, and attachment. Also serves as a hole for inserting the lock release pin of the base from the alarm side.

  Further, the other connecting column 21b is formed at a position substantially corresponding to the planar position of the output device side connection terminal 23 of FIG. 6 and the second output device side connection terminal 28 of FIG. On the other hand, as shown in FIGS. 8 to 11, the sounder body 22 is provided with a screw 22a electrically connected to the circuit board 26, and the screw 22a protrudes upward through the upper housing 25a. ing. The screw 22 a is inserted into the inside of the connecting column 21 b in FIG. 7, and one end thereof is electrically connected to the output device side connection terminal 23. Further, the screw 28 c electrically connects the second output device side connection terminal 28 to a metal fitting 26 a extending from the circuit board 26. With such a structure, the output device side connection terminal 23, the screw 22a, and the second output device side connection terminal 28 are electrically connected. Then, by performing electrical connection through the connecting pillar 21b and the screw 22a in this way, it is not necessary to insert the lead wire 2 shown in FIGS. 2 and 3 into the base sounder 20, and the lead wire 2 is connected to the base sounder 20. Therefore, it is not necessary to form a through hole for drawing in, so that the degree of freedom of arrangement of the piezo element 27 and other components in FIG. 9 can be increased.

  Next, the acoustic structure of the base sounder 20 will be described. As shown in FIG. 10, a resonance space portion 27a is formed inside the sounder body 22, and a piezo element 27 is arranged inside the resonance space portion 27a. The resonance space 27a amplifies the alarm sound generated from the piezo element 27 by a resonance effect. The resonance space 27a communicates with the sound emission opening 25c. The sound emission opening 25c emits the alarm sound output from the piezo element 27 and amplified by the resonance space 27a toward the amplification space 27b between the base cover 21 and the sounder body 22. Sound outlet. The alarm sound thus emitted is further amplified by the amplification space portion 27b. That is, the cross section of the amplification space portion 27b is formed so as to gradually increase from the plane center position toward the plane outer side direction (the direction extending to the left and right in FIG. 10), and the alarm sound is amplified by the horn effect. The alarm sound thus amplified is output from the space 27b to the outside of the base sounder 20.

  Here, the outer edge portion 21 d of the base cover 21 is configured to gradually increase in diameter as it reaches the ceiling surface 1, and forms a smooth slope reaching the ceiling surface 1. The angle of the outer edge portion 21d with respect to the ceiling surface 1 is determined so that the alarm sound guided to the ceiling surface 1 along the outer edge portion 21d is reflected from the ceiling surface 1 with high efficiency. Therefore, the alarm sound reaches the outer edge portion 21d along the outer side surface of the base cover 21, and is smoothly guided to the ceiling surface 1 along the outer edge portion 21d. From the ceiling surface 1 toward the monitoring region with high efficiency. Reflected.

  In the above structure, since it is not necessary to form a through hole for drawing the lead wire 2 in the base sounder 20, the resonance space portion 27a, the piezo element 27, and the sound emission opening portion 25c are provided in the base sounder. It is arrange | positioned in 20 plane substantially center position. The amplification space 27b is formed so as to spread substantially uniformly laterally with the substantially central position of the base sounder 20 in the plane. Therefore, the alarm sound is amplified and diffused in a well-balanced manner, and the alarm sound is output substantially uniformly around the base sounder 20, so that the acoustic efficiency can be improved.

  Next, the fire detector 30 will be described. However, the fire detector 30 can be configured in substantially the same manner as a conventional fire detector except for a specially described portion, and the description of the configuration substantially similar to that of the conventional fire detector is omitted. As shown in FIG. 1, the upper portion of the casing 31 of the fire detector 30 is formed in a hollow bowl shape having substantially the same diameter as the sounder main body 22 of the base sounder 20, and the fire detector 30 is attached to the base sounder 20. In the fixed state, the side surface of the fire detector 30 and the side surface of the base sounder 20 are substantially flush with each other, creating a sense of unity in design.

  FIG. 12 is a perspective view of the fire detector as viewed from above. As shown in FIG. 12, an alarm-side connection terminal 32 is provided on the upper surface of the fire detector 30. This alarm device side connection terminal 32 is an electrical connection means for supplying power to the fire detector 30 and inputting / outputting signals between the base sounder 20 or the mounting base 10. Moreover, the alarm device side connection terminal 32 functions as a connection means for performing structural connection with the base sounder 20 or the mounting base 10. For this reason, the position and shape of the alarm device side connection terminal 32 in the fire detector 30 are formed substantially the same as the position and shape of the output device side connection terminal 23 in the base cover 21 of FIG. Specifically, the alarm device side connection terminal 32 is formed of a single metal plate 32 a disposed substantially parallel to the ceiling surface 1 (not shown). The plate 32a is disposed at a slight distance from the upper surface of the fire detector 30, and is fixed to the fire detector 30 with a screw 32b at an end thereof. Then, the plate 32a is sandwiched between the two plates 28a, 28b of the base sounder 20 second output device side connection terminal 28 of FIG. It can be fixed electrically. Alternatively, the plate 32a is sandwiched between the two plates 13a and 13b of the base side connection terminal 13 of the mounting base 10 of FIG. Can be fixed. A specific procedure for this connection will be described later.

  Next, the connection procedure of each unit will be described in detail. First, in FIG. 3, the mounting base 10 is pressed against the ceiling surface 1 from below, the screws 11 a are inserted into the screw holes 11 and screwed into the ceiling surface 1, thereby fixing the mounting base 10 to the ceiling surface 1. Further, the lead wire 2 drawn out from the ceiling surface 1 is drawn downward through the wiring hole 12 and fixed to the mounting base 10 with screws 13f.

  Next, when the base sounder 20 is attached, in FIG. 2, the base cover 21 and the sounder body 22 are preliminarily assembled with each other as a product, and the assembled base sounder 20 is attached to the base 10 from below. Press against. At this time, as shown in the enlarged perspective view of the connection terminal before connection in FIG. 13, the plates 13 a and 13 b of the base side connection terminal 13 of the mounting base 10, and the plate 23 a of the output device side connection terminal 23 of the base cover 21. Are substantially parallel to the ceiling surface 1, that is, substantially parallel to each other. Therefore, by rotating the base sounder 20 by a predetermined angle along the ceiling surface 1 as the installation surface, the base sounder 20 is rotated along with this rotation as shown in the enlarged perspective view of the connection terminal after connection in FIG. A plate 23a is inserted and sandwiched between the plates 13a and 13b. In this clamping state, since the output device side connection terminal 23 is locked to the base side connection terminal 13, the output device side connection terminal 23 comes into contact with the base side connection terminal 13, so that both can be conducted and attached. The base sounder 20 can be electrically connected to the base 10. At the same time, the plates 13a and 13b and the plate 23a are arranged along a direction substantially parallel to the ceiling surface 1 (substantially horizontal direction), so that the weight of the base sounder 20 applied in the vertical direction is reduced to the base side connection terminal. 13, the base sounder 20 can be structurally supported by the mounting base 10 without using other fixing means such as screwing. The base sounder 20 can be easily detached from the mounting base 10 by rotating it in the direction opposite to that at the time of mounting.

  Thereafter, in FIG. 2, when the fire detector 30 is attached to the base sounder 20, substantially the same work as when the base sounder 20 is attached to the attachment base 10 may be performed. That is, the fire detector 30 is pressed against the base sounder 20 from below and is rotated by a predetermined angle along the ceiling surface 1 which is an installation surface. Then, the plate 32a of the alarm device side connection terminal 32 of FIG. 12 rotated in accordance with this rotation is inserted between the plates 28a and 28b of the second output device side connection terminal 28 of the sounder body 22 of FIG. It is pinched. In this clamping state, since the alarm device side connection terminal 32 is locked to the second output device side connection terminal 28, the alarm device side connection terminal 32 comes into contact with the second output device side connection terminal 28. Both can conduct | electrically_connect and the fire detector 30 can be electrically connected to the base sounder 20. FIG. At the same time, the plates 28a, 28b and the plate 32a are arranged along a direction substantially parallel to the ceiling surface 1 (substantially horizontal direction), so that the weight of the fire detector 30 applied in the vertical direction is the second. Since it is supported by the output device side connection terminal 28, the fire detector 30 can be structurally supported by the base sounder 20 without using other fixing means such as screwing. Note that the fire detector 30 can be easily detached from the base sounder 20 by rotating it in the direction opposite to that at the time of attachment.

  On the other hand, when the base sounder 20 is omitted and only the fire detector 30 is directly attached to the attachment base 10, substantially the same operation as that for attaching the fire detector 30 to the base sounder 20 may be performed. That is, after attaching the attachment base 10 to the ceiling surface 1, the fire detector 30 is pressed against the attachment base 10 from below and rotated along the ceiling surface 1 by a predetermined angle. In this state, since the plates 13a and 13b of the base-side connection terminal 13 of the mounting base 10 and the plate 32a of the alarm-side connection terminal 32 of the fire detector 30 are parallel to each other, the fire detector 30 The plate 32a rotated with the rotation is inserted and sandwiched between the two plates 13a and 13b. In this clamped state, the alarm device side connection terminal 32 is locked to the base side connection terminal 13, so that the alarm device side connection terminal 32 comes into contact with the base side connection terminal 13 so that both can be connected and attached. The fire detector 30 can be electrically connected to the base 10. At the same time, the plates 13a and 13b and the plate 32a are arranged along a direction substantially parallel to the ceiling surface 1 (substantially horizontal direction), so that the weight of the fire detector 30 applied in the vertical direction is connected to the base side. Since it is supported by the terminal 13, the fire detector 30 can be structurally supported by the mounting base 10 without using other fixing means such as screws. The fire detector 30 can be easily detached from the mounting base 10 by rotating it in the direction opposite to that at the time of mounting.

  In addition, after attaching the fire detector 30 to the base sounder 20 initially, you may attach these to the attachment base 10 collectively. Further, only the base sounder 20 can be attached to the attachment base 10 and the fire detector 30 can be omitted. When the fire detector 30 is omitted in this way, after the base sounder 20 is attached to the attachment base 10, the base sounder 20 is covered with a cover (not shown), so that the second output device side connection terminal 28, etc. It is also possible to secure safety and design. In addition, in the case where only the fire detector 30 is already installed on the mounting base 10 at a high place, a remover capable of holding the fire detector 30 and the base sounder 20 is fixed to the tip of a long ridge, Using this detacher, the base sounder 20 and the fire sensor 30 can be sequentially attached after the fire sensor 30 is removed. As described above, since the attaching / detaching work can be performed only by rotating each part, the work at a high place can be easily performed.

  As described above, according to the first embodiment, each part can be attached in substantially the same procedure, so that the attachment work can be made common. Further, the same mounting base 10 can be used regardless of the presence or absence of the base sounder 20, and the mounting work becomes easy. Furthermore, since screwing is not required for mounting the base sounder 20 and the fire detector 30, screws and work tools are not required, and mounting work is further facilitated.

  Next, Example 2 will be described. In the second embodiment, an alarm output device (hereinafter referred to as a wall sounder) that outputs an alarm sound based on the control of a receiver that receives an output from a fire detector that is fixed to a wall surface and is attached at another position. It is about. However, unless otherwise specified, the configuration is the same as that of the first embodiment, and the configuration that is substantially the same as that of the first embodiment is given the same name or symbol as that used in the description of the first embodiment, if necessary. A description thereof will be omitted.

  FIG. 15 is a perspective view of a wall sounder and the like according to the second embodiment, and FIG. 16 is an exploded perspective view of the wall sounder and the like of FIG. As shown in these drawings, a mounting base 10 is fixed to a wall surface 3 that is an installation surface, and a wall sounder 40 is mounted on the mounting base 10. In the second embodiment, for convenience of explanation, the direction approaching the wall surface 3 with the wall sounder 40 as the center is referred to as “inside” and the direction away from the wall surface 3 is referred to as “outside”. Can be read as a direction approaching the installation surface and “outer” as a direction moving away from the installation surface.

  Here, the mounting base 10 is configured in the same manner as in the first embodiment, and a base-side connection terminal 13 is provided on the outer surface thereof. And the lead wire 2 pulled out from the wall surface 3 is connected to this base side connection terminal 13.

  The wall sounder 40 is configured by housing a piezoelectric element (not shown) as a sound source in a housing 41 having an outer diameter that substantially covers the mounting base 10. The outer portion 42 of the casing 41 is formed in a shape similar to a loudspeaker that becomes wider toward the outside, and an alarm sound output from the piezo element is guided to the outer portion 42 through an opening (not shown). Amplified at the outer portion 42 and output to the outside.

  FIG. 17 is a perspective view of the wall sounder viewed from the inside. On the inner surface of the wall sounder 40, an output device side connection terminal 43 formed in the same position and shape as the output device side connection terminal 23 of the base sounder 20 of the first embodiment is provided. In the state shown in FIG. 17, the output device side connection terminal 43 includes a plate 43a disposed substantially parallel to the wall surface 3 as an installation surface. Therefore, when the wall sounder 40 is pressed against the mounting base 10 and rotated by a predetermined angle along the wall surface 3, the plate 43a rotated along with this rotation is placed between the plates 13a and 13b of the base side connection terminal 13. The wall sounder 40 can be fixed to the mounting base 10 by being inserted and clamped. The wall sounder 40 can be easily detached from the mounting base 10 by rotating it in the direction opposite to that during mounting.

  Here, conventionally, a mounting base (not shown) dedicated to the wall sounder 40 is fixed to the wall surface 3, and the wall sounder 40 is fixed to the dedicated mounting base. Specifically, the lead wire 2 drawn out from the wall surface 3 is drawn through the dedicated mounting base and connected to a connection terminal provided on the inner surface of the wall sounder 40. After that, a long screw was inserted from the outside of the wall sounder 40, and the wall sounder 40 was fixed by passing through the wall sounder 40 and screwing it into the mounting base. On the other hand, according to the above-described second embodiment, the base sounder 20 and the fire detector 30 of the first embodiment can be mounted on the mounting base 10, and the wall sounder can be installed in the same procedure as this mounting. 40 can be attached. Therefore, the mounting of the wall sounder 40 can be made common with the mounting of the base sounder 20 and the fire detector 30. Further, the wall sounder 40, the base sounder 20 and the fire detector 30 can be easily exchanged with each other. Furthermore, since the wall sounder 40 is not attached with screws, no screws or work tools are required, and the attachment work is further facilitated.

  Next, Example 3 will be described. The third embodiment is further fixed in a superposed manner with respect to a base sounder fixed to the ceiling surface, and an alarm output device (hereinafter referred to as a base beacon) that displays an alarm based on an output from a fire detector. ). However, unless otherwise specified, the configuration is the same as that of the first embodiment, and the configuration that is substantially the same as that of the first embodiment is given the same name or symbol as that used in the description of the first embodiment, if necessary. A description thereof will be omitted.

  FIG. 18 is a perspective view of the base beacon and the like according to the third embodiment, and FIG. 19 is an exploded perspective view of the base beacon and the like of FIG. As shown in FIGS. 18 and 19, a mounting base 10 is fixed to the ceiling surface 1 as an installation surface, and a base sounder 20 is mounted below the mounting base 10. A base beacon 50 is attached below the base sounder 20, and a fire detector 30 is further attached below the base beacon 50. Since the mounting base 10, the base sounder 20, and the fire detector 30 can be configured in substantially the same manner as in the first embodiment, description thereof is omitted.

  Here, the base beacon 50 is configured by incorporating an LED (not shown) as a light emission source in a cylindrical casing 51 having an outer diameter substantially the same as that of the base sounder 20. A clear lens 52 is fitted on the entire circumference of the side portion of the casing 51, and light emitted from the LED is emitted to the outside through the clear lens 52.

  FIG. 20 is a perspective view of the base beacon as viewed from above. As shown in FIG. 20, an output device side connection terminal 53 is provided on the upper surface of the base beacon 50 at the same position and shape as the output device side connection terminal 23 of the base sounder 20 of the first embodiment. . The output device side connection terminal 53 includes a plate 53a, and the plate 53a is arranged substantially parallel to the ceiling surface 1 as an installation surface in a state where the base beacon 50 is arranged as shown in FIG. Is done. Accordingly, when the base beacon 50 is pressed against the base sounder 20 from below and rotated along the ceiling surface 1 by a predetermined angle, the plate 53a of the output device side connection terminal 53 rotated in accordance with this rotation becomes the plate 53a. The base beacon 50 can be fixed to the base sounder 20 by being inserted and sandwiched between the plates 28 a and 28 b of the second output device side connection terminal 28. Further, in the same procedure as this attachment, similarly to the case of the fire detector 30 of the first embodiment, the base sounder 20 can be omitted and the base beacon 50 can be directly attached to the attachment base 10. In addition, the base beacon 50 can be easily detached from the base sounder 20 by rotating it in the direction opposite to that at the time of attachment.

  As shown in FIG. 19, the second output device side connection terminal is located on the lower surface of the base beacon 50 at the same position and shape as the second output device side connection terminal 28 of the base sounder 20 of the first embodiment. 54 is provided. The second output device side connection terminal 54 is formed by superposing two plates 54a and 54b, and these plates 54a and 54b are installed on the installation surface in a state where the base beacon 50 is arranged as shown in FIG. It is arrange | positioned substantially parallel to the ceiling surface 1 which is. Therefore, when the fire detector 30 is pressed against the base beacon 20 from below and rotated along the ceiling surface 1 by a predetermined angle, the alarm detector side connection terminal (not shown) of the fire detector 30 rotated along with this rotation is provided. Since the 32 plates 32a are inserted and sandwiched between the plates 54a and 54b of the second output device side connection terminal 54, the fire detector 30 can be electrically and structurally fixed to the base beacon 50. . Note that the fire detector 30 can be easily detached from the base beacon 50 by rotating it in the direction opposite to that at the time of attachment.

  Here, conventionally, the base beacon 50 has the same shape as the fire detector 30 and is attached to the mounting base 10 common to the fire detector 30. Therefore, although it could not be installed coaxially with the fire detector 30, in this third embodiment, by adopting a connection structure similar to the base sounder 20 of the first embodiment, a fire is formed on the lower surface of the base beacon 50. It is also possible to connect the sensor 30. According to the third embodiment described above, the base sounder 20 and the fire detector 30 of the first embodiment can be attached to the mounting base 10, and the base beacon 50 is attached to the mounting base 10 in the same procedure as this mounting. And can be attached to the base sounder 20. Therefore, the attachment of the base beacon 50 can be made common with the attachment of the base sounder 20 and the fire detector 30. Further, the base beacon 50 and the base sounder 20 and the fire detector 30 can be easily exchanged with each other. Furthermore, since screwing is not required for mounting the base beacon 50, screws and work tools are not required, and the mounting work is further facilitated.

  While the embodiments of the present invention have been described above, the specific configuration and method of the present invention can be arbitrarily modified and improved within the scope of the technical idea of each invention described in the claims. it can. Hereinafter, such a modification will be described.

  First, the configuration of each embodiment can be applied to other embodiments. For example, in the first and third embodiments, the fire detector 30 is arranged at the lowest position to increase the fire detection capability. However, when the alarm output effect is to be maximized, the fire detector 30 is provided. The base sounder 20 and the base beacon 50 may be fixed below the fire sensor 30 by being fixed to the mounting base 10. In this case, the second output device side connection terminal 28 may be provided on the lower surface of the fire detector 30. Thus, by providing the connection terminals shown in each embodiment on the upper and lower surfaces of various types of sensors, for example, a sensor having a function of detecting heat and gas, each of these sensors is required. Accordingly, they can be combined in a polymerization manner, and a terminal device having a composite function can be configured.

  Further, the position and shape of the connection terminal can take various forms other than those shown in the respective embodiments. For example, one of the connection terminals connected to each other may be a male terminal used for plug connection of household electrical equipment, and the other of the connection terminals may be a female terminal that detachably receives the male terminal. Good. Further, in each embodiment, each part can be structurally and electrically connected by a connection terminal, but the structural connection is performed by screw fixing as in the prior art, and only the electrical connection is based on the above-described configuration. You may carry out with a connection structure.

  In addition, the problems to be solved by the present invention and the effects of the invention are not limited to the above contents, and the present invention solves problems not described above or effects not described above. In some cases, only a part of the described problems can be solved, or only a part of the described effects can be achieved. For example, even when the connection structure of each part cannot be made completely common, the object of the present invention is achieved as long as the connection efficiency is improved even slightly.

  In addition, the structural examples shown in the document and drawings, the dimensional relationship and positional relationship of each part, the thickness, etc. are merely examples, and can be arbitrarily changed unless otherwise specified.

(First Supplementary Note 1)
The alarm output device described in the first supplementary note 1 is an alarm output device that outputs a predetermined alarm for notifying an abnormality in a monitoring area, and is fixed to the installation surface on a surface facing a predetermined installation surface. An output device side connection terminal for structurally and electrically connecting the alarm output device to a base side connection terminal provided on a predetermined mounting base is provided.

(First Supplementary Note 2)
The alarm output device described in the first supplementary note 2 is an alarm output device that is connectable to the alarm output device described in the first supplementary note 1 and further detects an abnormality in the monitoring area. A second output device side connection terminal for structurally and electrically connecting the alarm output device to the alarm device side connection terminal provided on the alarm device is provided on the surface facing the alarm device. The output device side connection terminal and the second output device side connection terminal are electrically connected.

(First Supplementary Note 3)
The alarm output device described in the first supplementary note 3 can be connected to an alarm device that detects an abnormality in the monitoring area, and outputs an alarm sound based on the output from the alarm device. A base cover that can be fixed to a mounting base that is attached to the installation surface of the alarm output device, and a sound source unit that outputs the alarm sound by being fixed to the base cover with a space therebetween The alarm output device is structurally and electrically connected to a base-side connection terminal provided on the mounting base on a surface of the base cover that faces the mounting base. The alarm output device is structurally and electrically connected to the alarm device side connection terminal provided on the alarm device on the surface of the output device body facing the alarm device. Connecting Characterized in that a second output device-side connection terminals of the fit.

(First Supplementary Note 4)
Moreover, the alarm output device according to the first supplementary note 4 is the alarm output device according to any one of the first supplementary notes 1 to 3, wherein either the base side connection terminal or the output device side connection terminal is used. One is configured using a plurality of plates arranged substantially parallel to the installation surface, and one of the other is configured using a plate sandwiched between the plurality of plates.

(First Supplementary Note 5)
Further, the alarm output device according to the first supplementary note 5 is the alarm output device according to any one of the first supplementary notes 2 to 4, wherein the alarm device side connection terminal and the second output device side connection are provided. Any one of the terminals is configured using a plurality of plates arranged substantially parallel to the installation surface, and any one of the terminals is configured using a plate sandwiched between the plurality of plates. .

(First Appendix 6)
Further, the alarm output device according to the first supplementary note 6 is the alarm output device according to any one of the first supplementary notes 2 to 5, wherein the position and shape of the output-side connection terminal in the alarm output device are the same. Is substantially the same as the position and shape of the base-side connection terminal in the mounting base, and the position and shape of the second output-device side connection terminal in the alarm output device are the same as the alarm device side in the alarm device. The position and shape of the connection terminal are substantially the same.

(First Appendix 7)
The alarm output device described in the first supplementary note 7 can be connected to the alarm output device described in any one of the first supplementary notes 2 to 6 to detect an abnormality in the monitoring area. In the alarm output device that outputs an alarm based on the output from the alarm device, the base cover that can be fixed to the mounting base attached to the installation surface of the alarm output device, and the base cover An output device main body that accommodates a sound source unit that outputs the alarm sound, and a connecting column that connects the base cover and the output device main body to each other; The output device side connection terminal is provided on the surface facing the mounting base, and the second output device side connection terminal is provided on the surface of the output device body facing the alarm device, and the output device side connection is provided. Terminal and the second Electrical connection between the output-side connecting terminals, characterized in that went through the connector stud.

  In the alarm output device of the present invention, the alarm output device can be structurally and electrically connected to the mounting base by connecting the output device side connection terminal to the base side connection terminal of the mounting base. No need for screws or work tools for screwing when attaching the alarm output device, making it easy to attach the alarm output device.

  The alarm output device of the present invention can connect the alarm device to the alarm output device structurally and electrically by connecting the second output device side connection terminal to the alarm device side connection terminal of the alarm device. Therefore, a screw and a work tool for screwing are not required when the alarm is attached, and the alarm is easily attached.

  Moreover, since the alarm output device of the present invention performs inter-terminal connection by sandwiching another plate between a plurality of plates arranged substantially parallel to the installation surface, the weight of the alarm output device or the alarm device is reduced. Even when applied in a direction orthogonal to the installation surface, this can be supported by the plate, and the structural and electrical connection of the alarm output device and the alarm device becomes possible.

  In addition, the alarm output device of the present invention makes the position and shape of the output-side connection terminal in the alarm output device substantially the same as the position and shape of the base-side connection terminal in the mounting base, and the second in the alarm output device. Since the position and shape of the output device side connection terminal are substantially the same as the position and shape of the alarm device side connection terminal in the alarm device, the connection structure of the alarm output device to the mounting base, the connection structure of the alarm device to the mounting base, and The connection structure of the alarm device to the alarm output device can be shared. Therefore, either the alarm output device or the alarm device can be attached to the same attachment base, and the attachment operation becomes easy. For example, when only an alarm device is already installed, even when an alarm output device is attached, it is not necessary to replace the attachment base, and the attachment operation is facilitated.

(Second supplementary note 1)
In the fire alarm system according to the second supplementary note 1, an alarm device that detects an abnormality in a monitoring area and an alarm output device that outputs a predetermined alarm are directly connected to a mounting base fixed to a predetermined installation surface. The alarm device or the alarm output device can be attached to either the alarm device or the alarm output device attached to the mounting base.

(Second supplementary note 2)
The fire alarm system according to the second supplementary note 2 includes an alarm device that detects an abnormality in a monitoring area and a plurality of alarm output devices that output a predetermined alarm with respect to an attachment base fixed to a predetermined installation surface. Can be directly attached and the plurality of alarm output devices can be attached in a superposed manner to the alarm device attached to the attaching base, or attached to the attaching base in a superposed manner. The alarm device can be attached to the plurality of alarm output devices.

(Second supplementary note 3)
The fire alarm system according to the second supplementary note 3 includes an alarm device that detects an abnormality in the monitoring area and one or more alarm output devices that output a predetermined alarm with respect to a mounting base fixed to a predetermined installation surface. At least two of the alarm devices or the alarm output devices selected from the above can be attached in a superposed manner.

(Second supplementary note 4)
The fire alarm system according to the second supplementary note 4 is the fire alarm system according to any one of the second supplementary notes 1 to 3, wherein the fixing structure of the attachment base and the alarm device, the attachment base and the The fixing structure for the alarm output device and the fixing structure for the alarm device and the alarm output device are the same.

(Second supplementary note 5)
The fire alarm system according to the second supplementary note 5 is the fire alarm system according to the second supplementary note 2 or 3, wherein the mounting base and the alarm device are fixed, and the attachment base and the alarm output device. The fixing structure, the fixing structure between the alarm device and the alarm output device, and the fixing structure between the plurality of alarm output devices are the same.

(Second supplementary note 6)
The fire alarm system according to the second appendix 6 is the fire alarm system according to any one of the second appendices 1 to 5, wherein the alarm output device has a sound source for outputting an alarm sound. Sounder.

(Second supplementary note 7)
The fire alarm system according to the second supplementary note 7 is the fire alarm system according to any one of the second supplementary notes 1 to 5, wherein the alarm output device is a base beacon having a light emission source.

(Second supplementary note 8)
The fire alarm system according to the second supplementary note 8 is the fire alarm system according to any one of the second supplementary notes 2 to 5, wherein at least some of the plurality of the alarm output devices emit an alarm sound. It is a base sounder having a sound source for output, and at least another part is a base beacon having a light emission source.

(Second supplementary note 9)
The fire alarm system according to the second supplementary note 9, in the fire alarm system according to any one of the second supplementary notes 1 to 8, is replaced with the alarm device or the alarm output device with respect to the mounting base. Therefore, a wall sounder that outputs a predetermined alarm can be attached.

(Second supplementary note 10)
The fire alarm system according to the second appendix 10 is the fire alarm system according to the second appendix 9, wherein the fixing structure between the mounting base and the alarm device, and the fixing structure between the mounting base and the alarm output device. The fixing structure of the alarm device and the alarm output device and the fixing structure of the mounting base and the wall sounder are the same.

(Second supplementary note 11)
The fire alarm system according to the second supplementary note 11 is the fire alarm system according to any one of the second supplementary notes 1 to 10, wherein the alarm device is attached to the alarm output device attached to the attachment base. Instead of this, a cover can be attached.

  According to this fire alarm system, the sensors can be combined in a polymerized manner as necessary, and a terminal device having a composite function can be configured.

    As described above, the fire alarm system according to the present invention is useful for improving the workability of attaching the alarm output device to the installation surface and the output efficiency of the alarm by the alarm output device.

DESCRIPTION OF SYMBOLS 1,102 Ceiling surface 2 Lead wire 3 Wall surface 10, 101 Mounting base 11, 106 Screw hole 11a, 13c, 21c, 22a, 28c, 32b, 107 Screw 12, 108, 109 Wiring hole 13 Base side connection terminal 13a, 13b, 23a, 28a, 28b, 32a, 43a, 53a, 54a, 54b Plate 20, 100 Base sounder 21 Base cover 21a, 21b Connecting column 21d Outer edge portion 22 Sounder body 23, 43, 53 Output side connection terminal 25a Upper housing 25b Lower casing 25c Sound emission opening 26, 104 Circuit board 26a Metal fitting 27, 105 Piezo element 27a Resonance space 27b Amplification space 28, 54 Second output device side connection terminal 30, 103 Fire detector 31, 41, 51 Housing 32 Alarm side connection terminal 40 Wall Sau Zehnder 42 outer portion 50 base beacon 52 clear lens 111 connection terminal

Claims (4)

It outputs a predetermined alarm for notifying the abnormality of the monitoring area, and is an alarm output device that can be attached to an attachment base fixed to a predetermined installation surface,
A sound source to output an alarm sound;
A terminal for connecting the alarm output device to the mounting base, comprising an output device side connection terminal provided on a surface of the alarm output device facing the mounting base;
In a plane parallel to the installation surface, the sound source is disposed at the center position of the alarm output device, and the output device side connection terminal is disposed at a non-center position of the alarm output device.
Alarm output device. An output device body having the sound source;
A base cover that is disposed at a position closer to the mounting base side than the output device main body and has the output device side connection terminal on a surface facing the mounting base;
The alarm output device according to claim 1. The alarm output device is an alarm output device that can be mounted between the mounting base and an alarm device that detects an abnormality in the monitoring area,
On the surface facing the alarm device in the output device main body, a second output device side connection terminal for connecting the alarm output device to the alarm device is provided,
The output device main body and the base cover are connected to each other via a connecting pillar,
In a plane parallel to the installation surface, the connecting column is arranged at a non-center position of the alarm output device,
The output device side connection terminal and the second output device side connection terminal were electrically connected through the connecting pillar,
The alarm output device according to claim 2. An amplification space for amplifying an alarm sound output from the sound source by connecting the output body and the base cover with the space between each other via the connection pillar, did,
The alarm output device according to claim 3.

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