JP4284533B2 - Wall-mounted fire alarm - Google Patents

Description

  The present invention relates to a wall-mounted fire alarm device, and more particularly to a wall-mounted fire alarm device that allows a user to easily and reliably press a button when inspecting an alarm device used for a house and mounted at a high place.

  Conventional fire alarms are equipped with a switch operation check button on the front side of the housing. By pressing and operating the switch body provided in the housing with this check button, a certain time in the fire alarm state is reached. The alarm is stopped, and the operation check of the alarm device in a normal monitoring state is performed (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 5-174266 (paragraphs 0006 to 0008, FIGS. 1 to 4)

  There are two types of conventional fire alarms as described above: ceiling-mounted type and wall-mounted type. In the case of wall-mounted type, the residential fire alarm is installed at a high position on the wall 15 to 50 cm below the ceiling. Otherwise, the fire detection effect will fade. Therefore, it is not easy for a short user or an elderly person to press the check button. In addition, since the check button of the conventional fire alarm is as small as about 10 mm in diameter, it is necessary to get on the stand to press the button directly, but there is a risk of falling. In addition, although the inspection can be performed by pulling the attached string, there is a problem that it is not aesthetically pleasing if the string hangs from the alarm.

  The present invention has been made to solve the above-described problems, and makes it possible to press the switch reliably by pressing any part of the surface of the inspection button. Further, the alarm of the alarm device installed at a high place is provided. The object is to obtain a wall-mounted fire alarm that allows a user to easily and reliably press a button with a stick or lap around him during inspection.

A wall-mounted fire alarm device according to the present invention is provided with a detection unit and a switch for detecting a fire on a printed circuit board accommodated and installed in a housing constituted by a main body and a protective cover, and on the surface side of the protective cover. In a wall-mounted fire alarm device provided with an inspection button member having a button part for pressing and operating the switch, the button part is disposed so as to include at least a surface extending over the entire width of the lowermost part of the protective cover. The inspection button member is provided with an extending piece integrally formed on the upper portion of the button portion and having a fixing hole, and is inserted into the fixing hole of the inspection button member on the inner surface side of the protective cover. A protruding heat-welded portion and a protruding portion with which the upper end portion of the extending piece abuts, and the inspection button member is attached to the fixing hole of the extending piece in the heat of the protective cover. Insert through the weld Te, while the upper end portion of the extending piece is brought into contact with the protrusion of the protective cover, the heat welded portion is intended to be fixed to the protective cover by heat welding.

In addition, a detection unit and a switch for detecting a fire are provided on a printed circuit board housed and installed in a housing constituted by a main body and a protective cover, and a button unit for pressing and operating the switch is provided on the surface side of the protective cover. In the wall-mounted fire alarm provided with an inspection button member having, the button portion is disposed so as to include at least a surface extending over the entire width of the lowermost portion of the protective cover, and the inspection button member includes the An extension piece that is integrally formed on the upper part of the button portion and is fixed to the inner surface side of the protective cover is provided, and a detection portion storage portion that receives the detection portion is provided on the protective cover, and the extension piece Is a shape extending along the outer peripheral direction of the detection portion accommodating portion of the protective cover, and extends to the upper both ends of the button portion.

A wall-mounted fire alarm device according to the present invention is provided with a detection unit and a switch for detecting a fire on a printed circuit board accommodated and installed in a housing constituted by a main body and a protective cover, and on the surface side of the protective cover. In a wall-mounted fire alarm device provided with an inspection button member having a button part for pressing and operating the switch, the button part is disposed so as to include at least a surface extending over the entire width of the lowermost part of the protective cover. The inspection button member is provided with an extending piece integrally formed on the upper portion of the button portion and having a fixing hole, and is inserted into the fixing hole of the inspection button member on the inner surface side of the protective cover. A protruding heat-welded portion and a protruding portion with which the upper end portion of the extending piece abuts, and the inspection button member is attached to the fixing hole of the extending piece in the heat of the protective cover. Insert through the weld Te, while the upper end portion of the extending piece is brought into contact with the protrusion of the protective cover, the heat welded portion because it is fixed to the protective cover by heat welding, attached to a high place alarm When inspecting the container, the user can easily and surely press the button portion of the inspection button member from below with a stick or lap around him.
In addition, the check button member is provided with a spring property by the extended piece, and the switch can be pushed by the button part with the heat welding part as a fulcrum. Returning to the normal position, the distance between the button portion and the switch can be maintained satisfactorily, and the pressing of the switch can be prevented.

In addition, a detection unit and a switch for detecting a fire are provided on a printed circuit board housed and installed in a housing constituted by a main body and a protective cover, and a button unit for pressing and operating the switch is provided on the surface side of the protective cover. In the wall-mounted fire alarm provided with an inspection button member having, the button portion is disposed so as to include at least a surface extending over the entire width of the lowermost portion of the protective cover, and the inspection button member includes the An extension piece that is integrally formed on the upper part of the button portion and is fixed to the inner surface side of the protective cover is provided, and a detection portion storage portion that receives the detection portion is provided on the protective cover, and the extension piece the user, in a shape along the outer circumferential direction of the detection unit accommodating portion of the protective cover, since the extended to the upper ends side of the button part, upon inspection of the alarm device attached to a high place, from below It is possible to push the button portion of easily and reliably check button member with a stick or your balls like that in everyday life.
The distance to the pressing portion of the supporting point or et button section of the check button member can be lengthened, and reducing the force required to press operation, also, the button portion is not cantilevered, button portion Even if any part of the throat is pushed, the entire button part moves inward of the casing, so that the switch can be pushed reliably.

1 and 2 are configuration diagrams of a wall-mounted fire alarm showing an embodiment of the present invention. FIG. 1 (a) is a front view, and FIG. 1 (b) is an AA cross section of FIG. 1 (a). 1 (c) is a bottom (bottom) view, FIG. 2 (a) is a right side view of FIG. 1 (a), and FIG. 2 (b) is a rear view of FIG. 1 (a). 3 is an enlarged view of the main part of FIG.
The wall-mounted fire alarm of the present embodiment is a smoke detection type. In FIGS. 1 to 3, smoke is emitted on a printed circuit board 8 housed and installed in a housing constituted by a main body 1 and a protective cover 2. A detection unit 7 to detect, a tact switch 9 as a switch, and an LED (not shown) as an alarm are fixed, and a speaker 10 and a battery 6 as an alarm are electrically connected. In addition, the protective cover 2 is provided with a sound hole 23 of the speaker 10 and a detection unit storage unit 24 in which the detection unit 7 is stored, and an inspection button member 4 is disposed below the detection unit storage unit 24. ing.

  Further, as shown in FIG. 3, the tact switch 9 is pressed by a pressing portion 46 provided on the button portion 41 of the inspection button member 4 (see FIG. 1) to prevent warping of the printed circuit board 8 at the time of pressing. A substrate contact portion 12 is provided in the main body 1. Further, an operation string attaching portion 44 is formed on the front surface side of the button portion 41, and a slit 11 is provided in the back direction of the bottom surface of the main body 1 so as to hang along the wall surface through the other end side of the operation string. ing. Further, as shown in FIG. 2 (b), the main body 1 has a battery cover 5 having a notch 51 that covers the battery 6 and covers a transfer connector, which will be described later, and a mounting bracket for attachment to a wall surface. A portion 13 is provided.

FIG. 4 is a diagram showing the arrangement of components in the protective cover 2 with the main body 1 removed.
In FIG. 4, a transfer connector 39 connected to an external alarm device such as a flashlight or an extension buzzer is provided on the back side of the printed circuit board 8, and this transfer connector 39 is disposed close to the battery 6. Yes. The battery cover 5 having a notch 51 that can be attached to the main body 1 covers the battery 6 and the transfer connector 39. When connecting an external alarm device or the like to the transfer connector 39, By notching the notch 51 of the battery cover 5, the transfer connector 39 is exposed outside the housing.

  The wall-mounted fire alarm is provided with various members inside the housing so that the wall-mounted fire alarm does not tilt when hung on the wall. That is, the inclination is suppressed by placing the heavy battery 6 and the speaker 10 in proximity to the mounting bracket insertion portion 13 that is a wall-mounted mounting fulcrum. Further, the battery 6 is arranged on one side and the speaker 10 is arranged on the other side, and an acoustic reflection member 38 is provided on the back surface of the speaker 10, and this acoustic reflection member 38 adjusts the balance in addition to increasing the volume. It has a function.

FIG. 5 is a configuration diagram of the inspection button member 4, FIG. 5 (a) is a front view, FIG. 5 (b) is a rear view, FIG. 5 (c) is a side view of FIG. ) Is a bottom (bottom) view, and FIG. 6 is a perspective view of FIG. 5 and 6, the inspection button member 4 is formed by integrally forming a button portion 41 for pushing operation and an extending piece 42 for attachment to the protective cover 2, and the extending piece 42 is detected. In a shape along the outer peripheral direction of the portion accommodating portion 24, the button portion 41 extends to the both sides of the upper portion, and a hole 45 for fixing to the protective cover 2 is provided at a substantially central portion of the extending piece 42. . Further, a substantially U-shaped hinge piece 43 to be inserted into an opening 25 to be described later of the protective cover 2 is erected at the bottom of the back surface of the button portion 41, and the tact switch 9 is pressed at the center of the back surface of the button portion 41. A pressing portion 46 is formed. Further, on the back surface of the button portion 41, a convex portion 47 in which an operation string attaching portion 44 is formed on the front surface side is provided.
As shown in FIG. 1, the button portion 41 has a vertical width extending from the vicinity of the lower edge of the detection portion accommodating portion 24 to the lowermost portion of the protective cover 2, and the entire width of the lowermost portion of the protective cover 2. It is set to a large size including a surface with a wide width, and the shape thereof is a substantially L-shaped cross section having a surface side portion and a bottom surface side portion along the surface side and the bottom surface side of the protective cover 2 respectively. .

7 and 8 are configuration diagrams of the protective cover 2, in which FIG. 7 (a) is a side view, FIG. 7 (b) is a front view, FIG. 8 (a) is a rear view of FIG. 8B is a cross-sectional view of FIG. 8A, FIG. 8C is a bottom surface (bottom surface) view, and FIG. 9 is a perspective view of the main part of FIG.
7 and 8, the protective cover 2 includes a speaker storage unit 31, an acoustic hole 23 of the speaker 10, a detection unit storage unit 24 in which the detection unit 7 is stored, a battery storage unit 30, and an inspection for operating the tact switch 9. A recess 26 for accommodating the button portion 41 of the button member 4 is formed. The contact surface 27 of the recess 26 includes an opening 25 into which a hinge piece 43 erected from the lower back of the button part 41 is inserted, an opening 28 into which the button part 41 of the inspection button member is inserted, and a pressing part 46. An opening 29 to be inserted and a printed board support portion 33 are provided.
Further, on the inner surface side of the protective cover 2, there are provided a protruding heat-welded portion 22 inserted through the fixing hole 45 of the inspection button member 4 and a protruding portion 21 with which the upper end portion of the extending piece 42 abuts. Yes.
The protective cover 2 and the inspection button member 4 are formed from synthetic resin.

  10 is a front view and a bottom view of the main body 1, and FIG. 11 is a rear view of FIG. 10 and 11, in order to prevent warping of the printed circuit board 8 in the back direction when the switch is pressed, the board contact part 12 and the operation string attaching part 44 of the button part 41 are provided on the part of the main body 1 of the corresponding housing. A slit 11 extending through the wall surface through the operation string attached to the wall, a battery loading port 16 covered with the battery cover 5, and a transfer erected in a U-shaped cross section surrounding the periphery of the transfer connector 39. A mounting hole used when attaching to the information connector housing portion 17, a dedicated mounting bracket, which will be described later, fixed to the wall surface, and used when mounting with a mounting bracket insertion portion 13 having a sandwiching piece 14 sandwiching the bracket and a general-purpose screw. 15 is provided.

  FIG. 12 is a front view and a bottom view of the battery cover 5. In FIG. 12, a notch 51 having a notch groove 52 that covers the transfer connector 39 (FIG. 4) is provided on the back surface. Further, a slide piece 53 that slides on the edge of the battery loading port 16 of the main body 1 and an engagement piece 54 that engages with the main body 1 are provided.

Next, the assembly of the wall-mounted fire alarm showing the embodiment of the present invention will be described with reference to FIG. 6, FIG. 9, FIG. 13 is a view showing a state in which the inspection button member 4 is attached to the protective cover 2, and FIG. 14 is a cross-sectional view (part) taken along line AA in FIG.
First, the button part 41 is inserted from the inner surface side of the protective cover 2 into the opening 28 provided in the contact surface 27 of the recess 26 in which the button part 41 of the inspection button member 4 of the protective cover 2 is accommodated. 29, the hinge piece 43 and the pressing portion 46 of the button portion 41 are inserted at the same time, and at the same time, the heat welding portion 22 provided on the inner surface side of the protective cover 2 in the hole 45 provided in the extension piece 42 of the inspection button member 4. In the state where the upper end portion of the extending piece 42 is in contact with the protrusion 21 provided on the inner surface side of the protective cover 2, the heat welding portion 22 is thermally welded to weld portion 22a (FIG. 14). And fixed to the protective cover 2.

  As described above, the check button member 4 is provided with a spring property by the extending piece 42, and the tact switch 9 can be pushed and operated by the button portion 41 with the heat welding portion 22 as a fulcrum. In addition, since the upper end portion of the extension piece 42 is constantly stressed inward of the housing, when the button portion 41 is pushed and released, the button portion 41 reliably uses the heat welding portion 22 as a fulcrum. Return to the normal position. That is, the upper end portion of the extension piece 42 tries to release the increase in stress due to the pushing operation, so that the button portion 41 can be satisfactorily returned to the normal position, and the interval between the button portion 41 and the tact switch 9 is good. The tact switch 9 can be prevented from being pressed.

  Further, since the button portion 41 is disposed so as to include the surface extending over the entire width of the lowermost portion of the protective cover 2 to increase the area, the protective cover 2 has a concave portion in which the button portion 41 is accommodated. 26 and the detection portion accommodating portion 24 in which the detection portion 7 is accommodated are provided close to each other, but the extending piece 42 is formed in a shape along the outer peripheral direction of the detection portion accommodating portion 24 of the protective cover 2, and the button By extending to the upper both ends side of the part 41, the distance from the heat welding part 22 which is the tact switch 9 fulcrum to the pressing part 46 of the button part 41 can be increased, and the force required for the pressing operation Is reduced. In addition, by extending the extended piece 42 to the side of the upper end of the button part 41, the button part 41 is not cantilevered, and any part of the button part 41 can be pushed and operated. Since it moves to the inside of the housing, the tact switch 9 can be pushed reliably.

  Further, since the hinge piece 43 of the button portion 41 is inserted into the opening 25 of the concave portion 26 in which the button portion 41 of the protective cover 2 is accommodated, the hinge piece 43 provided in the opening 25 acts as a stopper for inspection. The inspection button member 4 is prevented from being damaged by pulling the button member 4 outward from the casing, and the inspection button member 4 is pushed more than necessary inside the casing by the contact surface 27. Therefore, it is possible to prevent the spring property of the inspection button member 4 from being deteriorated and the tact switch 9 from being pressed due to the deterioration.

  Next, the LED cap 37 is inserted from the front side of the LED cap mounting portion 32 of the protective cover 2 and is hooked and fixed by a claw portion (not shown). Next, the printed circuit board 8 to which the detection unit 7, the tact switch 9 and the like are already mounted is placed at a predetermined position of the protective cover 2, the detection unit 7 is stored in the detection unit storage unit 24, and the speaker 10 is the speaker storage unit. In a state where the acoustic reflection member 38 is placed on the back side of the speaker 10 as shown in FIG. 4, the acoustic reflection member 38 is screwed to the protective cover 2 to fix the speaker 10. Then, the protective cover 2 and the main body 1 are engaged and screwed. Finally, the battery 6 is placed in the battery housing 30 of the protective cover 2 via the battery loading port 16 and electrically connected to the printed circuit board 8 via its connector (not shown). Is attached to the main body 1.

  Note that a switch operation string (not shown) has one end coupled to the operation string attachment section 34 of the button section 41 and the other end side along the wall surface from the slit 11 provided in the back direction of the bottom surface of the main body 1 as necessary. Hang down.

  Next, attachment of the wall-mounted fire alarm to the wall surface will be described with reference to FIGS. 15 is a front view and a bottom view of the mounting bracket 61 attached to the wall surface, as viewed from the wall surface side, and FIG. 16 is a view showing a state in which the mounting bracket 61 is fixed to the wall-mounted fire alarm. In FIG. 15, the mounting bracket 61 is formed of an alarm side mounting portion 61d that has a cross-sectional hat shape and is bent and extended on both sides from the wall surface side mounting portion 61a. The wall surface side mounting portion 61a has a general screw mounting hole 61b. And a plaster board mounting nail hole 61c used as a general wall material of a house.

  The mounting bracket 61 is mounted on the wall surface with screws using the screw mounting holes 61b of the wall surface side mounting portion 61a or with the plaster board mounting nails using the plaster board mounting nails 61c. Then, as shown in FIG. 16, the alarm side mounting portion 61 d of the mounting bracket 61 mounted on the wall surface is inserted into the mounting bracket insertion portion 13 provided on the upper portion of the main body 1, and is sandwiched and fixed by the sandwiching pieces 14. Can be attached. In some cases, the mounting bracket 61 may not be used, and the mounting hole 15 provided in the mounting bracket insertion portion 13 may be used for screwing.

In this way, the conventional wall-mounted alarm device has a wall-mounted mounting fulcrum at the top of the case, a battery at one side of the bottom of the case, and a weight for balance adjustment at the other side of the bottom of the case. On the other hand, in the present embodiment, as shown in FIG. 4, the battery 6 and the speaker 10 which are heavy members with respect to the mounting bracket insertion portion 13 which is a wall-mounted mounting fulcrum are used. Are further provided in close proximity, and the balance is provided by the acoustic reflecting member 38 on the back surface of the speaker 10, so that no extra member is required and no tilt occurs.
Further, the mounting bracket 61 enables general screw mounting and gypsum board mounting used as a general wall material of a house.

Next, the operation of this wall-mounted fire alarm will be described.
When smoke is detected by the detection unit 7, an alarm that receives power supply from the battery 6 is activated by the detection signal and issues a fire alarm. When the button part 41 of the inspection button member 4 is pushed and operated in the fire alarm state, the alarm is stopped for a predetermined time. When the button part 41 of the inspection button member 4 is pushed and operated in the normal monitoring state, the alarm and the fire The alarm operation is checked.
At this time, since the button part 41 is disposed so as to include a wide surface extending over substantially the entire width of the lowermost part of the protective cover 2, when inspecting a wall-mounted alarm device mounted at a high place, the user can be seen from below. The button part 41 of the inspection button member 4 can be pushed easily and securely with a stick or a lap around the person.

Further, since the button portion 41 has a substantially L-shaped cross section having a surface side portion and a lower surface side portion respectively along the surface side and the lower surface side of the protective cover 2, the pressing direction is not only the surface side, but also corners and lower surfaces. It can be pushed even with a force from the side, and the direction after pushing from the front side with a ladle or the like can be deflected to the lower side, making it easy to operate.
4 is connected to an external alarm device such as a flashlight or an extension buzzer, the notch 51 is cut out from the battery cover 5 to expose the transferring connector 39 to the outside. To use.
Therefore, in the conventional wall-mounted alarm device, an opening is provided in the main body of the housing in order to expose the transfer connector to the outside, and it is normally sealed with a seal. For this reason, the seal cost and the man-hours are increased, and the sticking may be forgotten or peeled off, and the cockroach or the like may enter the inside and the substrate may be short-circuited. It is possible to integrate the cutout portion 51 as a cover of the transfer connector, and it is possible to easily expose the transfer connector to the outside simply by cutting out the cutout portion 51 from the battery cover 5. .

  When one end of the switch operation string is coupled to the operation string attaching portion 34 and the other end side of the switch operation string is suspended from the slit 11 provided in the back direction of the bottom surface of the main body 1 along the wall surface, By pulling the other end of the suspending switch operation string, one end of the switch operation string moves inward of the casing with the slit 11 as a fulcrum. The switch 9 can be pushed and operated.

  In addition, since the switch operation string is suspended along the wall surface, the switch operation string is aesthetically pleasing, and the conventional wall-mounted fire alarm is connected to one end of the switch operation string inside the housing. Since it protruded from the hole provided between the protective cover and the main body that composes the case to the outside, it was necessary to remove the protective cover to join the string when the string was cut. You can eliminate the need.

It is a lineblock diagram of a wall hanging type fire alarm which shows an embodiment of this invention. It is a lineblock diagram of a wall hanging type fire alarm which shows an embodiment of this invention. It is a principal part enlarged view of FIG. It is a component layout of a wall-mounted fire alarm showing an embodiment of the present invention. It is a lineblock diagram of the inspection button member of the wall hanging type fire alarm which shows an embodiment of this invention. FIG. 6 is a perspective view of FIG. 5. It is a lineblock diagram of a protection cover of a wall hanging type fire alarm which shows an embodiment of this invention. It is a lineblock diagram of a protection cover of a wall hanging type fire alarm which shows an embodiment of this invention. It is a principal part perspective view of FIG. It is a lineblock diagram of the main part of a wall hanging type fire alarm which shows an embodiment of this invention. It is a lineblock diagram of the main part of a wall hanging type fire alarm which shows an embodiment of this invention. It is a block diagram of the battery cover of the main body of the wall-mounted fire alarm which shows embodiment of this invention. It is a figure which shows the state which attached the inspection button member to the protective cover of the wall hanging type fire alarm which shows embodiment of this invention. It is a fragmentary sectional view of FIG. It is a block diagram of the mounting bracket of the wall-mounted fire alarm which shows embodiment of this invention. It is a figure which shows the state which fixed the attachment metal fitting 61 to the wall-hanging type fire alarm.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body, 2 Protective cover, 4 Inspection button member, 5 Battery cover, 6 Battery, 7 Detection part, 8 Printed circuit board, 9 Tact switch, 11 Slit, 21 Protrusion part, 22 Thermal welding part, 24 Detection part accommodating part, 25 Opening, 26 concave portion, 27 contact surface, 39 transfer connector, 41 button portion, 42 extension piece, 43 hinge piece, 44 operation string attachment portion, 45 holes, 51 notch portion.

Claims (2)

Inspection having a detection unit and a switch for detecting a fire on a printed circuit board housed and installed in a casing composed of a main body and a protective cover, and having a button unit for operating the switch on the surface side of the protective cover In a wall-mounted fire alarm with a button member,
The button part is disposed so as to include at least a surface extending over substantially the entire width of the lowermost part of the protective cover,
The inspection button member is provided with an extending piece integrally formed on the upper portion of the button portion and having a fixing hole,
On the inner surface side of the protective cover,
A protruding heat-welded portion inserted through the fixing hole of the inspection button member;
A protrusion with which the upper end of the extension piece abuts,
Is provided,
The inspection button member is inserted through the fixing hole of the extension piece through the heat welding portion of the protective cover, and the upper end portion of the extension piece is in contact with the protruding portion of the protection cover. The wall-mounted fire alarm is characterized in that the heat-welded portion is heat-welded and fixed to the protective cover. Inspection having a detection unit and a switch for detecting a fire on a printed circuit board housed and installed in a casing composed of a main body and a protective cover, and having a button unit for operating the switch on the surface side of the protective cover In a wall-mounted fire alarm with a button member,
The button part is disposed so as to include at least a surface extending over substantially the entire width of the lowermost part of the protective cover,
The inspection button member is integrally formed on the upper part of the button part, and provided with an extending piece fixed to the inner surface side of the protective cover,
The protective cover is provided with a detection unit storage unit in which the detection unit is stored,
The wall-hanging type fire alarm is characterized in that the extension piece extends along the outer peripheral direction of the detection part housing part of the protective cover and extends to both sides of the upper part of the button part.

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