JP2006338495A - Fire alarm - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent breakage of a fire alarm without upsizing a cover. <P>SOLUTION: A hanging member 71 for hanging the fire alarm 1 on a wall is formed integrally with and separably from a rear cover 7 so as to constitute a part of a wall surface of the rear cover 7 constituting a main body cover 4, and a mounting part 72 for mounting one edge of the hanging member 71 is provided at a part of the rear cover 7. Furthermore, a storage part 62 capable of storing the hanging member 71 separated from the rear cover 7 is provided in an inner lid 6 of a front cover 5 so that the hanging member 71 is stored inside when it is not used. Thus, use and nonuse of the hanging member 71 are selected if necessary and the breakage of the main body cover 4 by a fact that the hanging part is always formed integrally with the main body cover is prevented. In addition, the beauty in appearance is improved by making the hanging member attachable/detachable. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a fire alarm used in a house.

In recent years, in order to prevent damage caused by fire, it has been desired to install a fire alarm in ordinary households.
In a conventional fire alarm, a sensor (detection means) that detects the occurrence of a fire and an alarm unit (notification means) that performs an alarm based on the detection of the sensor are stored inside the main body cover. The main body cover is roughly divided into a front cover and a back cover, and is integrated as a main body cover by fitting them together.
The main body cover is integrally molded with a hooking portion for hooking to a nail, a screw, a hook, or the like when attached to a wall or ceiling (see, for example, Patent Document 1).
JP 2004-362537 A

However, in the above-described conventional fire alarm, since the hooking portion for hanging on the wall protrudes outside the main body cover and is integrally formed with the cover main body, for example, when the fire alarm is carried, it is bulky or damaged. There was a problem that it was likely to occur.
In addition, in the case of a structure with a locking hole, for example, when a hooking hole is provided on the back side (mounting surface side) of the fire alarm body, in order to be hooked on a hook provided on the wall surface of the building, There is also a problem that a space is required to allow the cover to be inserted inside, and the cover body becomes large.

  An object of the present invention is to prevent the fire alarm from being damaged without increasing the size of the cover.

  In order to solve the above-mentioned problems, the invention according to claim 1 includes a detection means for detecting the occurrence of a fire, a notification means for performing an alarm based on detection of a fire by the detection means, the detection means, and the notification means. A fire alarm device comprising: a main body cover to be mounted; and a hook member for hanging the wall separately from the main body cover, wherein a mounting portion for attaching the hook member to the main body cover is provided. It is an alarm.

  In the first aspect of the invention, the hanging member for hanging the wall is formed separately from the main body cover. When the fire alarm is used, a wall hanging member formed separately from the main body cover is attached to a mounting portion provided on the main body cover.

  According to a second aspect of the present invention, there is provided a detecting means for detecting the occurrence of a fire, a notifying means for giving an alarm based on detection of a fire by the detecting means, and a body cover incorporating the detecting means and the notifying means. A fire alarm, a wall-hanging latch member that forms a part of a cover wall surface of the main body cover and is formed integrally and separable from the main body cover, and the hook separated from the main body cover. The fire alarm device is characterized in that an attachment portion for attaching a stop member is provided on the main body cover.

  In the invention according to claim 2, one end portion of the latching member separated from the main body cover is attached to the attachment portion of the main body cover. Further, the main body cover is attached to the wall or ceiling at the other end of the hooking member. The hooking member itself may be hook-shaped, may be formed in a substantially annular shape that is hooked on a protrusion or hook provided on a wall or ceiling, or is formed in a shape such as a substantially rectangular shape. May be.

Invention of Claim 3 is the fire alarm device of Claim 1 or Claim 2,
The body cover is composed of a front cover and a back cover that can be connected to each other via an engaging portion,
When the connection between the front cover and the back cover is completed, the other front cover or back cover is provided with a pressure holding means for pressing and holding the hook member attached to either the front cover or the back cover. It is characterized by that.

  In the invention of claim 3, the main body cover is composed of a front cover and a back cover, and the latch member attached to one front cover or the back cover is when the connection between the front cover and the back cover is completed. Further, it is pressed and held by a pressing and holding means provided on the other front cover or back cover.

  According to a fourth aspect of the present invention, in the fire alarm according to the third aspect, the pressing and holding means is a locking protrusion provided on the other front cover or the back cover.

  In the invention according to claim 4, when the hook member is attached to the attachment portion of the main body cover, when the front cover and the back cover are connected, the one end portion of the hook member is pressed and held. The latching protrusion holds the latch member so that the latch member is not removed or shaken.

According to a fifth aspect of the present invention, in the first to fourth aspects of the present invention, the main body cover is provided with a storage portion for storing the latch member.
According to the fifth aspect of the present invention, when the alarm device once attached is moved to another place, the latch member separated from the main body cover is stored in the storage portion.

According to a sixth aspect of the present invention, in the fire alarm device according to the fifth aspect of the present invention, the storage unit is provided with a display for instructing the storage of the latch member.
According to the sixth aspect of the invention, the user is shown that the latching member separated from the main body cover can be stored in the storage unit.

  According to the first aspect of the present invention, since the hanging member for wall hanging can be attached to and detached from the attachment portion, the hanging member is removed when carrying the fire alarm. Accordingly, it is possible to effectively prevent damage to the main body cover as compared with a conventional fire alarm that is integrally formed with the hook member protruding from the main body cover. Moreover, it is not bulky when carrying the fire alarm. Furthermore, by providing a mounting portion for attaching a hanging member for wall hanging to the main body cover, when the fire alarm is hung on the wall, a hanging member formed separately from the main body cover is provided. The conventional problem can be solved without increasing the size of the main body cover.

  According to the second aspect of the present invention, the hanging member for hanging the wall constitutes a part of the cover wall surface of the main body cover and is integrally formed with the main body cover. In this case, the latching portion does not protrude outward and is not bulky. Therefore, the main body cover can be effectively prevented from being damaged. Furthermore, the number of parts can be suppressed by integrally forming the latch member and the main body cover, and the cost can be suppressed. In addition, since it is not a structure in which the hook provided on the wall side or ceiling is inserted into the locking hole provided in the main body cover as in the prior art, it is not necessary to secure the insertion space of the hook. An increase in size can be prevented.

  According to the third aspect of the present invention, when the connection between the front cover and the back cover is completed, the wall hanging member attached to the front cover or the back cover is connected to the other front cover or the back cover. It can be pressed and held by a pressing and holding means provided on the cover. As a result, when the hanging member for wall hanging is used, the hanging member can be fixed integrally with the main body cover, the play and backlash between the hanging member and the main body cover, unintentional disconnection or shaking. Can be prevented.

  According to invention of Claim 4, when a front cover and a back cover are connected via the engaging part, a latching member can be fixed with a latching protrusion. As a result, even when the fire alarm is attached to the wall or ceiling by the hooking member, play between the main body cover and the hooking member can be prevented. Can be prevented.

  According to the fifth aspect of the present invention, the latching member separated from the main body cover can be stored in the storage portion formed in the main body cover. Therefore, even when the latch member once separated from the main body cover is not used, it can be integrated with the fire alarm device, and the latch member can be prevented from being lost. Moreover, when using a latching member again, it can take out easily.

  According to the sixth aspect of the present invention, it is possible to indicate to the user that when the latching member separated from the main body cover is not used, it can be stored in the storage portion. Thereby, loss of a latching member can be prevented.

Next, the structure of the fire alarm device 1 which is embodiment of this invention is demonstrated in detail with reference to drawings.
The fire alarm device 1 according to the present embodiment is installed in a house of a general house (mainly a detached house) for home use, and is mainly used by being attached to a ceiling or a wall, and detects the presence or absence of smoke. This is to detect the occurrence of a fire.
Moreover, the phrase which shows the top or bottom of the fire alarm 1 in the following description shall show the case where it becomes up or down when it attaches to a wall using the latching member 71 mentioned later.

(Overall configuration of the embodiment)
The fire alarm 1 includes a sensor 2 as detection means (smoke detection unit) for detecting the occurrence of a fire, a buzzer 3 as notification means for performing an alarm based on detection of a fire by the detection means, and these sensors 2 and 3 And a main body cover 4 having a built-in structure, the main part is configured (see FIG. 1).

  The sensor 2 is disposed at a substantially central portion inside a main body cover 4 to be described later, and includes a light emitting element and a light receiving element (not shown) arranged with an intricate labyrinth structure (not shown). It becomes the composition of. During normal times, light from the light-emitting element blocked by the labyrinth structure is scattered by the smoke flowing in from the smoke inlet 52 described later, passes through the labyrinth structure, and reaches the light-receiving element. The occurrence can be detected.

  The buzzer 3 is connected to a control circuit that performs control to generate various preset alarm sounds based on the detection of smoke by the sensor 2 described above. This control circuit also has a conventionally well-known configuration stored in the main body cover.

(Main unit cover)
Next, the main body cover 4 in this embodiment will be described in detail.
As shown in FIGS. 1 and 2, the main body cover 4 is composed of a front cover 5 facing the indoor side and a back cover 7 facing the wall surface or the ceiling side when attached to the wall. The front cover 5 and the back cover 7 can be connected to each other via engaging portions 65 and 75 described later.

  The front cover 5 is a flat, substantially cylindrical casing made of a resin such as plastic, and has a substantially circular convex portion at the center of the front (inner side casing wall surface). 51 is provided, and a smoke inlet 52 is formed on a side surface of the convex portion 51. That is, the smoke inlet 52 is formed over almost the entire circumference of the convex portion 51 so that smoke flows from all angles in the circumferential direction of the front cover 5, It is possible to detect the occurrence.

In addition, a slit 53 is formed in front of the front cover 5, and an alarm sound generated by the buzzer 3 is diffused (released) to the outside through the slit 53.
A push button 54 is provided on the lower side of the front surface of the front cover 5. The push button 54 is used to check an operation of an inspection unit (not shown) for confirming the operation of the sensor 2 and the buzzer 3 or to stop the alarm sound when the buzzer 3 is activated and generates an alarm sound. The switch is also used as a stop switch. The push button 54 can also be operated by pulling the other end of the string 55 connected to the push button 54 from the inside of the front cover 5 at one end.

Inside the front cover 5, the sensor 2 and the buzzer 3 described above are housed, and one end on the wall surface side is covered with an inner lid 6.
The inner lid 6 is detachably fixed to the above-described front cover 5 with screws, and houses a battery housing portion 61 that houses a battery that serves as a power source for the fire alarm 1 and a latch member 71 described later. The latch member storage portion 62 to be connected and the engagement portion 65 for connecting the back cover 7 are formed (see FIG. 3).

  The battery housing 61 is disposed at a position on the lower side in the main body cover 4 when the fire alarm 1 is attached to the wall.

The latch member housing portion 62 is formed in a concave shape along the surface of the inner lid 6 facing the back cover 7.
The latching member storage portion 62 is somewhat larger than the latching member 71 and has a shape similar to that of the latching member 71 in plan view so that a latching member 71 described later can be accommodated. A mold is formed (see FIG. 3).
In addition, the latching member storage portion 62 is provided with a display 62a for instructing the latching member 71 to be stored. The display 62a is formed on the surface of the inner lid 6 as a relief of a pattern of a hooking member 71 described later.

  Further, the inner lid 6 is formed with a locking projection 63 which is arranged to press and hold a hooking member 71 attached to a mounting portion 72 described later when the front cover 5 and the back cover 7 are connected. The locking protrusion 63 and the engaging portion 65 described above will be described later together with the engaging portion 75 of the back cover 7.

Next, the back cover 7 in this embodiment will be described in detail.
The back cover 7 is a substantially disc-shaped frame that covers the wall surface side of the front cover 5 described above, and is detachable from the front cover 5 via an engaging portion 75.
Further, the back cover 7 is formed with a locking hole 76 penetrating the wall surface of the back cover 7, which can be hooked to a nail or a hook provided on the wall or ceiling, on the wall surface of the back cover 7. (See FIG. 2).
The locking holes 76 are provided on the top, bottom, left and right of the surface portion of the back cover 7 and are formed in a long hole shape that penetrates from the outer flat surface 7 a to the inner flat surface 7 b of the back cover 7. Among these, the locking hole 76 provided in the upper part is a long hole that is long in the vertical direction. The lower end side of the locking hole 76 is greatly opened, and the head of the screw is inserted through the main body cover 4 along the long hole. The outer flat surface 7a of the back cover 7 can be attached in close contact with the mounting surface of the ceiling or wall. Further, the locking hole 76 provided on the lower side of the surface portion of the back cover 7 is a long hole formed substantially in the left-right direction, that is, along the circumferential direction of the back cover 7, one end of which is the same as described above. The head portion of the screw can be inserted, and the opening is slightly large.
As shown in FIG. 4, the engaging portions 65 and 75 include plate-like portions 65 a and 75 a provided in parallel with the surface portions of the inner cover 6 and the back cover 7 of the front cover 5, respectively. By engaging the other plate-like portion so as to enter from the circumferential direction of the cover between the plate portion and the plate-like portion, the two covers are attracted and connected in a direction in which they are in close contact with each other.

  The back cover 7 according to the present embodiment includes a wall hanging member 71 that forms a part of the cover wall surface of the back cover 7 and is formed integrally with the back cover 7 so as to be separable. A mounting portion 72 for attaching one end portion of the latching member 71 cut out from the cover and separated is formed (see FIG. 3). In FIG. 3, for ease of explanation, both the state before the latching member 71 is separated and the state where the latching member 71 is separated and attached to the attachment portion 72 are drawn together.

The back cover 7 is integrally formed of a resin such as plastic, and the hooking member 71 forms a part of the wall surface of the back cover 7 itself and is integrally formed as described above. Further, the hook member 71 itself is formed so as not to protrude from the entire shape of the back cover 7.
The hook member 71 has a substantially Ω shape when viewed from the front, and has a substantially annular portion 71a for hooking on a projection such as a nail or hook provided on the wall or ceiling, and two for attaching to the back cover 7. Foot portion 71c (see FIG. 5).
The hook member 71 is formed integrally with the back cover 7 and integrally formed with the back cover 7 by continuously molding the ends of the two legs 71c. Is held, and can be easily separated as necessary.
Moreover, the two leg parts 71c of the latching member 71 have a shape having a step 71b in a side view so as to be fitted to a mounting part 72 described later (see FIG. 6).

In addition, when the fire alarm device 1 according to the present embodiment is attached to a wall or ceiling, the hooking member 71 has a nail, a hook, etc. in order to hold the hooking member 71 in a more stable state. Two through-holes 71d are formed for inserting the.
The through hole 71d is provided so as to be inclined downward from the front surface to the rear surface side of the annular portion 71a of the latching member 71 with the annular portion 71a of the latching member 71 facing upward and the foot 71c facing downward. Thus, the durability of the nails and rivets driven through the through-hole 71d and driven into the wall surface against the downward load is improved.

The mounting portion 72 is provided at the periphery of the outer flat surface 7a of the back cover 7 and has a shape in which the two foot portions 71c of the above-described hooking member 71 are fitted, and has two holes penetrating to the inner flat surface 7b. (See FIGS. 7, 8, 9, and 10). As shown in FIGS. 9 and 10, the two foot portions 71 c of the latching member 71 can be inserted into or removed from the mounting portion 72 only from obliquely upward on the back side of the back cover 7. Yes. Then, as shown in FIG. 10 (a), the two foot portions 71c of the latching member 71 are inserted obliquely from the outside with respect to the mounting portion 72, and the latching member as shown in FIG. 10 (b). When 71 is held in parallel with the back cover 7, the recess 71 e of the latch member 71 engages with the edge of the peripheral wall 7 c of the back cover 7, so that the latch member 71 is prevented from moving upward. The back side of the book leg 71c is brought into contact with the inner flat surface 7b of the back cover 7, so that the back side of the back cover 7 and the hooking member 71 form the same plane and engage with each other.
Further, when the front cover 5 and the back cover 7 are connected to each other, the above-described locking projection 63 is provided at a position corresponding to the mounting portion 72 formed on the back cover 7. The pressure holding according to the present invention prevents the play between the mounting member 72 of the latching member 71 and the inner lid 6 and the back cover 7 by filling the gap between the mounted latching member 71 and the inner lid 6 and prevents rattling. It is provided as a means (see FIG. 10C).

Next, the effect | action of the fire alarm device 1 which is this embodiment is demonstrated in detail with reference to drawings.
First, the latching member 71 at the time of molding is molded integrally with the back cover 7 so as to constitute a part of the wall surface of the back cover 7 as described above.
Since the back cover 7 in the present embodiment is provided with four locking holes 76, for example, when the locking member 71 is not used according to the limitation of the mounting location or the user's preference, the locking is performed. The fire alarm device 1 is attached to the wall surface through the locking hole 76 while the member 71 is integrated with the back cover 7. In particular, when installing on the ceiling, it is preferable to use a plurality of locking holes 76 when mounting so that the entire surface of the outer flat surface 7a of the back cover 7 is in contact with the ceiling surface.

Next, the case where the latching member 71 is used when attaching the fire alarm 1 to a wall surface is demonstrated.
First, the tip ends of the two legs 71c of the latching member 71, which is a connecting portion between the back cover 7 and the latching member 71, are cut using a tool such as a cutter or a nipper. The cutting operation can also be performed manually without using a tool by repeatedly swinging the latching member 71 formed integrally with the back cover 7.

  Next, as described above, the retaining member 71 separated from the back cover 7 is attached to the attachment portion 72 of the back cover 7 (see FIGS. 10A, 10B, and 10C).

Subsequently, the back cover 7 and the front cover 5 are connected.
Such a connecting operation is performed by engaging the engaging portion 75 of the back cover 7 and the engaging portion 65 of the inner lid 6 provided on the front cover 5 side. That is, the inner lid 6 of the front cover 5 and the inner side surface of the back cover 7 are brought into contact with each other so that the engaging portions 65 and 75 are adjacent to each other. When the back cover 7 is rotated clockwise with respect to the inner lid 6, the engaging portions 65 and 75 are engaged with each other as described above, and the front cover 5 and the back cover 7 are brought into contact with each other. They are connected and integrated as a main body cover 4. At this time, the locking projection 63 formed on the inner lid 6 is moved so as to contact the end of the latching member 71 (see FIG. 10B), and when the engaging portions 65 and 75 are engaged. The latch member 71 is fixed. Here, the latch member 71 is fixed so as not to drop off the cover by being pressed at three points.
And the fire alarm 1 is attached to a wall surface by latching this latching member 71 on protrusions, such as a nail and a hook provided in the wall.

Moreover, when removing the latching member 71, it can remove by performing operation | movement contrary to the above. That is, the back cover 7 is rotated counterclockwise with respect to the front cover 5 to release the end of the latching member 71 from the locking state of the locking projection 63 and to separate the back cover 7 from the front cover 5. To do. Then, the tip of the latching member 71 is raised and removed from the back cover 7 by an operation reverse to that shown in FIG.
Here, the latch member 71 removed from the back cover 7 is housed in a latch member housing portion 62 formed on the inner lid 6, and the main body is formed by connecting the front cover 5 and the back cover 7. It is stored inside the cover 4. At this time, since the display 62a is provided on the storage portion 62, it can be seen at a glance where the latch member 71 should be stored. Further, the latch member 71 housed in the latch member housing portion 62 can be carried with the fire alarm 1 while being stored in the main body cover 4.

(Effect of embodiment)
As described above, according to the fire alarm device 1 according to the present embodiment, when the fire alarm device 1 is transported or normally used, the hooking member 71 does not protrude outward and is not bulky. Therefore, damage to the main body cover 4 (particularly the back cover 7) can be prevented. Moreover, the latching member 71 can be separated from the back cover 7 as necessary, and the separated latching member 71 can be attached to the attachment portion 72 so as to protrude from the back cover 7. By attaching to the wall surface with the latching member 71 provided so as to protrude to the outside of the main body cover 4 in this manner, the attaching and detaching work can be easily performed visually, compared with the case where the locking hole 76 is used. The complexity at the time of attaching / detaching the alarm device 1 can be eliminated. In addition, with the above-described structure, the rear cover 7 is provided with a locking hole 76 suitable for mounting the fire alarm device 1 on the ceiling, and the retaining member 71 suitable for wall hanging is also provided. Any of these can be selected freely. Furthermore, by integrally forming the latch member 71 and the back cover 7, the number of parts can be suppressed, and the cost can be reduced.
Further, by providing the locking protrusion 63, the hooking member 71 can be fixed when the front cover 5 and the back cover 7 are connected. As a result, it is possible to prevent the main body cover 4 and the latching member 71 from rattling or inadvertent detachment.
Further, the latching member 71 separated from the back cover 7 can be stored in a latching member storage unit 62 formed on the inner lid 6 of the front cover 5. Thereby, even if it is a case where the latching member 71 once separated from the main body cover 4 is not used, it can be integrated with the said fire alarm 1 and the loss of the latching member 71 can be prevented. Moreover, when using the latch member 71 again, it can take out easily and the selectivity of the attachment method and attachment position at the time of attaching the fire alarm 1 can be improved.
Moreover, it can show to a user that the latching member 71 isolate | separated from the back cover 7 can be accommodated in the accommodating part 62 by having the display 62a. Thereby, loss of the retaining member 71 can be prevented.
Further, when the hooking member 71 is not used, there is no portion protruding from the main body cover 4, and the aesthetic appearance is improved.

The latch member 71 may be provided on the front cover 5 side. In this case, when the fire alarm 1 is installed on the wall or ceiling, it is preferably formed in a portion that does not appear in the appearance. For example, it may be formed integrally with the inner lid 6 in the front cover 5.
Further, the outer periphery of the latching member 71 is not necessarily limited to a circle as shown in the present embodiment, and is provided on a wall or ceiling, for example, a substantially annular shape, a substantially triangular shape, or a substantially rectangular shape. What is necessary is just to be able to ensure the width | variety lockable to protrusions, such as a nail and a hook.
Moreover, what is necessary is just to accommodate the latching member 71 in the state previously accommodated in the accommodating part, when using it separately from a cover.
The storage unit 62 may be provided on either side of the front cover 5 and the back cover 7.
Further, the storage unit 62 is not limited to one, and a plurality of storage units 62 may be provided. In this case, it is preferable that at least the number corresponding to the number of attachment portions 72 or hooking members 71 formed in the fire alarm device 1 is formed.
Further, the storage portion 62 is formed so that the width of the portion where the foot portion 71c of the latching member 71 is fitted is somewhat narrowed, so that the elastic force of the two foot portions 71c of the latching member 71 housed inside thereof. It may be possible to hold it.
In addition, the display 62a is not limited to the present embodiment, and for example, an arrow indicating the storage portion 62, or a character or a picture indicating the storage portion of the latch member 71 may be formed as a relief. , It may be displayed not in the storage unit 62 but in the vicinity of the storage unit 62.
Moreover, the latching member 71 is not limited to a substantially annular shape. For example, the latching member 71 may be directly hung on a wall by forming the hooking member 71 like a hook or the like.
Further, the buzzer 3 may be other alarm means, for example, a speaker or the like as long as the alarm can be given to the surroundings.

It is the perspective view seen from the front side which shows the whole structure of the fire alarm which is this embodiment. It is the perspective view seen from the back side which shows the whole structure of the fire alarm which is this embodiment. It is a perspective view which shows the inner side of the main body cover of the fire alarm which is this embodiment. It is sectional drawing which shows the state in which the front cover and back cover in this embodiment were connected via the engaging part. It is a perspective view which shows the latching member in this embodiment. It is a side view which shows the latching member in this embodiment. It is the rear view which looked at the attaching part in this embodiment from the wall surface side of the back cover. It is a figure which shows the attachment part of the back cover in this embodiment, Comprising: It is sectional drawing seen from the AA arrow in FIG. It is explanatory drawing which shows a mode that a latching member is attached to the attaching part of the back cover in this embodiment. It is explanatory drawing which shows a mode that the latching member in this embodiment is attached to a main body cover.

Explanation of symbols

1 Fire alarm 2 Sensor (detection means)
3 Buzzer (notification means)
4 Main body cover 5 Front cover 51 Convex part 52 Smoke inlet 53 Slit 54 Push button 55 String 6 Inner lid 61 Battery storage part 62 Hook member storage part 62a Display 63 Locking protrusions 65 and 75 Engagement part 7 Back cover 7a Back Cover surface 7b Back cover back surface 7c Peripheral wall 71 Hanging member 71a Hanging portion 71b Step 71c Foot portion 71d Through hole 71e Recess 72 Mounting portion 76 Locking hole

Claims (6)

Detection means for detecting the occurrence of a fire;
Informing means for providing an alarm based on the detection of fire by the detecting means,
A fire alarm device comprising a main body cover containing the detection means and the notification means,
A hook member for hanging the wall separately from the main body cover;
A fire alarm device comprising an attachment portion for attaching the latch member to the main body cover. Detection means for detecting the occurrence of a fire;
Informing means for providing an alarm based on the detection of fire by the detecting means,
A fire alarm device comprising a main body cover containing the detection means and the notification means,
A wall-hanging member that forms a part of the cover wall surface of the main body cover and is formed integrally and detachably with the main body cover;
A fire alarm device, wherein an attachment portion for attaching the latch member separated from the main body cover is provided on the main body cover. The body cover is composed of a front cover and a back cover that can be connected to each other via an engaging portion,
When the connection between the front cover and the back cover is completed, the other front cover or back cover is provided with a pressure holding means for pressing and holding the hook member attached to either the front cover or the back cover. The fire alarm according to claim 1 or 2, characterized in that.   The fire alarm device according to claim 3, wherein the pressing and holding means is a locking projection provided on the other front cover or the back cover.   The fire alarm device according to any one of claims 1 to 4, wherein the main body cover is provided with a storage portion for storing the latch member.   The fire alarm according to claim 5, wherein the storage unit is provided with a display for instructing storage of the hooking member.

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