JPH10105854A - Gas alarming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve installation operability by fixing an alarm main body while looking at the elastic arm part of a fixing panel so as to easily grasp the positional relation of both of them and to speedily and surely install a gas alarming device. SOLUTION: At the time of installing the gas alarming device, the fixing panel 11 is first held to remove the upper paper of a both-side adhesive tape 15 and the outer surface of a base panel part 11a is superposed on a surface to be fixed 16 for installation of the alarming device, and adhered with the tape 15 for fixing the fixing plate 11 to the surface 16. Next, the alarm main body 10 is held and made to approach the panel 11 by matching the position of its recessed part 13 with the position of the panel 11 and while looking at the elastic arm parts 11b of the panel 11, so as to push and open the parts 11b by the main body 10 to insert between them. Then after completely pushing-in the main body 10 from a front surface side, the panel 11 is just fitted within the recessed part 13 to restrain the restraining part 11c of the parts 11b respectively to right and left restraining recessed parts 13a provided at the end tips of the recesses part 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas alarm which issues an alarm when a gas leak is detected. For more information,
Among them, the present invention relates to a gas alarm device of a type in which an alarm device main body is mounted on a surface to be mounted such as a wall surface via a mounting plate.

[0002]

2. Description of the Related Art Conventionally, a gas alarm must be replaced with a new one after a certain warranty period (for example, 5 years) has elapsed after installation. For this reason, it is necessary to attach it to a mounting surface such as a wall surface so that it can be exchanged to some extent. Therefore, some conventional gas alarms include an alarm main body and a mounting plate, and the alarm main body is mounted on a surface to be mounted via the mounting plate. After the warranty period has elapsed, the main body of the alarm device is removed from the mounting plate, replaced with a new one, and mounted again on the mounting surface using the same mounting plate.

[0003] For example, as shown in FIG.
Recesses 2 and 3 are formed on the upper and lower surfaces of the
Are closed by partition walls 4 and 5, and claw-like projections 6a and 6b are formed upward and downward on the mounting plate 6. Then, after attaching the outer surface of the mounting plate 6 to the surface 7 to be mounted, such as a wall surface, using double-sided adhesive tape or wood screws, hold the alarm device body 1 and bring the rear side of the alarm device 1 close to the mounting plate 6 to form the recesses 2.3. The claw-shaped protrusions 6a and 6b of the mounting plate 6 are inserted into the inside, and the alarm device main body 1 is moved slightly downward, so that the claw-shaped protrusions 6a and 6b
Was inserted into the upper portions of the concave portions 2 and 3 and hooked on the partition walls 4 and 5, and the alarm device main body 1 was mounted on the mounting surface 7 via the mounting plate 6.

For example, as shown in FIG. 8, a fitting hole 8 is formed in the lower part of the rear surface of the alarm device body 1 in place of the conventional concave part 3 shown in FIG. There is also a configuration in which a pin-like projection 6c is formed to protrude from the inner surface instead of the claw-like projection 6b of the conventional example shown in FIG. Similarly, after attaching the outer surface of the mounting plate 6 to the mounting surface 7, the claw-like projection 6a is inserted into the concave portion 2 while holding the alarm device main body 1, and the alarm device main body 1 is slightly moved downward, and The projection 6a is hooked on the partition wall 4 and the fitting hole 8 is formed at the position of the pin projection 6c.
The alarm device main body 1 is pushed from the front side to strongly push the pin-shaped projection 6 c into the fitting hole 8, and the alarm device main body 1 is mounted on the mounting surface 7 via the mounting plate 6.

[0005]

However, in such a conventional gas alarm device, particularly when the gas alarm device is installed in a narrow place, it is hidden by the alarm device body 1 held in a hand, and the rear mounting plate 6 is closed. There is a problem that the claw-like projections 6a and 6b must be inserted into the recesses 2 and 3 on the rear surface of the alarm device main body 1 with a sense from the front side, so that it is difficult to insert them. In the conventional example shown in FIG. 8, since the pin-shaped projection 6c and the fitting hole 8 must be further aligned, the installation workability is very poor. Further, since the claw-like projections 6a and 6b are inserted into the recesses 2 and 3 with a margin so that the alarm device body 1 can be detachably attached, there is a problem that if the alarm device body 1 is installed horizontally, it cannot be firmly fixed.

[0006]

Therefore, according to the first aspect of the present invention, an alarm device main body 10 is mounted on a mounting surface 16 such as a wall surface via a mounting plate 11, as shown in the following embodiments, for example. In the gas alarm device to be attached, a base plate portion 11a to be attached to the attachment plate 11 with an outer surface superimposed on the attachment surface 16, and an outer periphery of the alarm device main body 10 raised from the inner surface of the base plate portion 11a. A plurality of elastic arms 11b, 11b and the elastic arms 11
b. 11b, and hook portions 11c, 11c for hooking the alarm device body 10.

According to a second aspect of the present invention, in the gas alarm according to the first aspect, for example, as shown in the following illustrated embodiment, the mounting plate 11 fits into the alarm main body 10 exactly. It is characterized by forming a recess 13.

According to a third aspect of the present invention, in the gas alarm according to the first or second aspect, for example, as shown in the following embodiment, the mounting plate 11 is attached to the mounting surface 16. A double-sided adhesive tape 15 to be attached is attached to the outer surface of the base plate portion 11a.

Then, the mounting plate 11 is mounted on the mounting surface 16 such as a wall surface with the outer surface thereof superposed thereon, and the outer periphery of the alarm device body 10 is held by a plurality of elastic arms 11b rising from the inner surface of the mounting plate 11. , Its elastic arm portion 11b ...
The hook portions 11c provided on the alarm device main body 10 are hooked on the alarm device main body 10, and the alarm device main body 10 is mounted on the mounting surface 16 via the mounting plate 11.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a gas alarm according to one embodiment of the invention as viewed from the rear side. FIG. 2 is a plan view and FIG. 3 is a side view. As shown in the figure, a gas alarm device according to the present invention includes an alarm device body indicated by reference numeral 10 and a reference numeral 11 shown in FIG.
And a mounting plate indicated by.

First, the alarm device body 10 is covered with an outer case having a height H, a width B, and a depth D.
A recess 13 is formed on the back side of the outer case 12. The recess 13 is provided at the middle position of the outer case 12 at the left and right sides with a width a and a depth b, and extends to the left and right side surfaces of the outer case 12 so as to enter the length c from the back toward the front side. to make.

On the other hand, the mounting plate 11 is made of a resin material, has a width a 'which fits exactly within the width a of the recess 13, a length B' substantially equal to the width B of the alarm device body 10, and a thickness of the recess. 13
And the two elastic arms 11b and 11b rising from the inner surface of both ends of the base plate 11a to a length c 'slightly shorter than the length c.
And claw-shaped hooks 11c provided at the distal ends of the elastic arms 11b. And
A double-sided adhesive tape 15 is attached to the outer surface of the base plate 11a.

When the gas alarm is to be installed, the upper surface of the double-sided adhesive tape 15 is first peeled off by holding the mounting plate 11, and the outer surface of the base plate 11a is overlapped with the mounting surface 16 to be installed. As shown in FIG. 4, the mounting plate 11 is mounted on the surface 16 to be mounted by sticking with the double-sided adhesive tape 15. Then, holding the alarm device body 10, the position of the recess 13 is adjusted to the position of the mounting plate 11, and the mounting plate 1 is viewed as indicated by an arrow in the figure while viewing the elastic arms 11b of the mounting plate 11.
1 and the elastic body 1
1b and 11b are pushed open and inserted between them.

Then, when the alarm device body 10 is completely pushed in from the front side, the mounting plate 11 just fits into the recess 13.
And the left and right latching recesses 13 provided at the ends of the recesses 13
The hooks 11c, 11c of the elastic arms 11b, 11b are respectively hooked to the elastic arms 11b, 11b.
11b, the outer periphery of the alarm device main body 10 is held, and the alarm device main body 10 is held.
The rear surface and the left and right side surfaces of the alarm device are formed without any step with the outer surface of the mounting plate 11, and the alarm device body 10 is eventually mounted on the mounting surface 16 such as a wall surface via the mounting plate 11 as shown in FIG.

When the gas alarm device has been used for a long period of time and the warranty period of the gas alarm device has elapsed, a driver or the like is inserted between the tip of the elastic arm portion 11b and the alarm device main body 10 to bend the elastic arm 11b. The engagement with the hooking recess 13a is released, the alarm device body 10 is taken out and replaced with a new one,
Using the same mounting plate 11 again, it is mounted on the surface to be mounted.

In the above-described embodiment, the gas alarm device is installed by attaching to the mounting surface 16 using the double-sided adhesive tape 15. However, the gas alarm is not limited to the double-sided adhesive tape, and may be attached to the attachment surface 16 using, for example, a wood screw to install the gas alarm.

By the way, in the above-mentioned embodiment, after the mounting plate 11 is mounted on the mounting surface 16, the alarm device main body 1 is mounted.
0 was attached. However, as shown in FIG. 6, at the time of shipment from the factory, the mounting plate 11 is attached to the alarm device main body 10, and the double-sided adhesive tape 15 is attached to the back surface of the mounting plate 11, and when installed, the packaging box is removed. Then, the upper side of the double-sided adhesive tape 15 is peeled off, and the double-sided adhesive tape 15 is attached.
At the same time, it may be mounted on the mounting surface 16 in the assembled state.

In this case, it is only necessary to peel off the top paper and press it against the mounting surface 16, so that the workability of installing the gas alarm can be further improved.

According to the second aspect of the present invention, as shown in the above-described embodiment, the alarm device main body 10 has a mounting plate 11 attached thereto.
Is formed by forming a concave portion 13 in which the concave portion 13 fits. Then, at the time of installation, the mounting plate 11 is tightly fitted into the recess 13 so that the whole is externally integrated, and the installed gas alarm can be prevented from rising from the mounting surface 16 and the appearance can be improved.

According to a third aspect of the present invention, as shown in the above-described embodiment, a double-sided adhesive tape 15 for attaching the mounting plate 11 to the mounting surface 16 is attached to the outer surface of the base plate portion 11a. It is characterized by the following. Then, the outer surface of the base plate portion 11a is attached to the mounting surface 16 using the double-sided adhesive tape 15, so that the gas alarm can be easily mounted.

[0021]

Therefore, according to the first aspect of the present invention, the alarm device main body is mounted while looking at the elastic arm portion of the mounting plate, so that the positional relationship between the two can be easily grasped, and the elastic arm portion is viewed from the front side. , The gas alarm can be quickly and reliably installed, and the installation workability can be improved. Further, the main body of the alarm device can be easily replaced, and even if the alarm device is mounted sideways, it can be firmly fixed without any play.

According to the invention described in claim 2, at the time of installation,
Since the mounting plate is tightly fitted in the recess of the alarm device main body and the whole is integrated in appearance, the appearance can be improved by eliminating the floating from the mounting surface.

According to the third aspect of the present invention, the gas alarm can be mounted more easily because the mounting plate is mounted on the mounting surface by simply peeling off the upper paper and affixing with the double-sided adhesive tape. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a gas alarm according to an embodiment of the present invention as viewed from the rear side.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is a cross-sectional view for explaining attachment of the main body of the alarm to a mounting plate mounted on a mounting surface in the gas alarm.

FIG. 5 is a side view showing a state after the attachment.

FIG. 6 is a perspective view showing a gas alarm device for explaining another installation method of the gas alarm device as viewed from the rear side.

FIG. 7 is an explanatory longitudinal sectional view for explaining a method of installing a conventional gas alarm device.

FIG. 8 is an explanatory longitudinal sectional view for explaining a method of installing another conventional gas alarm device.

[Explanation of symbols]

 Reference Signs List 10 Alarm body 11 Mounting plate 11a Base plate portion 11b Elastic arm portion 11c Hooking portion 13 Concave portion 15 Double-sided adhesive tape 16 Mounting surface

Claims (3)

[Claims] 1. A gas alarm device in which an alarm device main body is mounted on a surface to be mounted via a mounting plate, wherein a base plate portion mounted on the mounting plate with an outer surface superimposed on the surface to be mounted.
A gas comprising: a plurality of elastic arms that stand up from the inner surface side of the base plate and embrace the outer periphery of the alarm main body; and a hook that is provided on the elastic arm and hooks to the alarm main body. Alarm. 2. The gas alarm according to claim 1, wherein the alarm main body has a concave portion into which the mounting plate fits exactly. 3. The gas alarm according to claim 1, wherein a double-sided adhesive tape for attaching the mounting plate to the mounting surface is attached to an outer surface of the base plate portion.