JPH0517794U - Gas alarm - Google Patents

Abstract

(57) [Summary] [Purpose] To make it easy and easy to replace or install a gas alarm. [Structure] A magnet 6 for attracting to a metal mounting surface is provided on a back surface of a body case 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a gas alarm device having a mounting structure.

[0002]

[Prior Art]

 The gas alarm is, for example, as disclosed in Japanese Utility Model Publication No. 62-34400, hooked and connected directly to a wall surface of a structure by using a hook or a positioning projection piece to a mounting bracket that is previously mounted. It was screwed on.

[0003]

[Problems to be solved by the device]

 The gas alarm has an expiration date due to the durability of the internal sensor. For example, it will be replaced with a new one within 5 years for city gas and 4 years for LP gas. When replacing the gas alarm device hooked and connected to the mounting bracket as described above with a new product, use excessive force when bending the hook or protrusion of the mounting bracket when removing the old product. It was often difficult to install an alarm. Also, if the installation specifications of the new gas alarm were changed, the previous mounting bracket could not be used, and the mounting bracket itself had to be replaced with a new one, which was troublesome to replace. It is an object of the present invention to provide a gas alarm device that is easy to install and remove, and is easy to adapt to changes in installation specifications.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention has a structure in which a magnet for attracting to a metal mounting surface is provided on the back surface of the main body case. Alternatively, the rear surface of the main body case may be provided with a recessed portion into which the protruding portion of the mounting member mounted on the wall surface of the structure is fitted, and a magnet for attracting the mounting surface of the mounting member.

[0005]

[Advantage] According to the present invention, the main body case can be attached as long as the attachment surface is magnetic metal (usually iron). Therefore, not only the attachment metal, but also the outer surface of the refrigerator and the decorative plate made of sheet metal. It is possible to directly attach to In particular, when a recess is provided on the back surface of the main body case, the protrusion is attached to the mounting surface of the mounting bracket on which a protrusion such as a hook is formed, so that the protrusion is sucked and fixed so as to enter the recess. The main body case can be positioned by the engagement of the portion and the concave portion.

[0006]

[Effect of the device]

 Therefore, according to the present invention, even if the hooking protrusion provided on the existing mounting bracket is deformed when the old device is removed, the new device can be easily and easily attached. In particular, in the form in which a recess is provided on the back surface of the main body case so as to engage with the protruding portion of the mounting bracket, it is convenient because the gas alarm can be correctly positioned and mounted by this engagement. Further, the gas alarm of the present invention can be attached to any surface as long as it is a metal surface, so it can be directly attached to a sheet metal outer plate or a decorative plate of various devices, and the mounting metal fitting It is also effective for installing a new gas alarm when it is difficult to install.

[0007]

【Example】

 Hereinafter, some examples of the present invention will be described. Example 1 A first example is shown in FIGS. 1 and 2. In the figure, reference numeral 1 is a gas alarm device, and 2 is an iron plate mounting bracket screwed to the wall surface of the structure 3. A hook-shaped protrusion 4 is cut out from the mounting member 2 so that a gas alarm device of a type having a locking hole on the back surface of the main body case can be hooked and connected thereto. In the gas alarm device 1 of the present invention, a plate-like magnet 6 is attached and fixed to the back surface of the body case 5. The magnet 6 has the same thickness as the protruding height of the protruding portion 4 of the mounting member 2, and as shown in FIG. 2, the back surface of the main body case 5 is in contact with the protruding portion 4 or the magnet 6 protrudes. The body case 5 can be attracted and fixed to the mounting surface of the mounting bracket 2 via the magnet 6 in a state of being floated from the portion 4. Second Embodiment A second embodiment is shown in FIGS. 3 and 4. In this case, a recess 7 having a shape and depth that allows the protrusion 4 of the mounting member 2 to be inserted thereinto is formed on the back surface of the body case 5 of the gas alarm device 1, and the plate-shaped magnet 6 is provided on the back surface of the body case 5. The magnet 6 is fitted and adhered in the shallow recess 8 formed in the above, and the magnet 6 is mounted so that the surface of the magnet 6 is flush with the back surface of the body case 5 or slightly protrudes from the back surface. With this configuration, as shown in FIG. 4, the gas alarm device 1 can be mounted on the mounting member 2 in a substantially close contact state, and the gas alarm device 1 can be positioned by the engagement of the protrusion 4 and the recess 7. Be seen. Third Embodiment A third embodiment is shown in FIGS. 5 and 6. In this example, the magnet 6 attached to the back surface of the body case 5 of the gas alarm device 1 is provided with a recess 7 into which the protrusion 4 of the mounting member 2 is fitted, and the protrusion 4 is used for positioning. It is designed to be attached and fixed to the mounting surface in the periphery.

The gas alarm device 1 of each of the above-described embodiments is a hanging device having a fireproof interior plate made of sheet metal mounted on the outer surface of the refrigerator, the inner wall surface of the kitchen, or a decorative plate made of metal on the outer surface. It can also be used by directly attaching it to the outer surface of the cabinet. Further, the magnet 6 may be a hard one or a soft one such as a rubber magnet, and the magnet 6 is attached to the main body case 5 by double-sided tape or sticking using an adhesive agent. It may be affixed to the main body case 5, or may be affixed by a builder or a user in the field.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a first embodiment.

FIG. 2 is a side view showing a mounting state of the first embodiment.

FIG. 3 is an exploded perspective view of a second embodiment.

FIG. 4 is a partially cutaway side view showing a mounting state of the second embodiment.

FIG. 5 is an exploded perspective view of a third embodiment.

FIG. 6 is a partially cutaway side view showing a mounting state of a third embodiment.

[Explanation of symbols]

 2 Mounting bracket 4 Protrusion 5 Body case 6 Magnet 7 Recess

Claims (3)

[Scope of utility model registration request] 1. A gas alarm device comprising a magnet (6) for adsorbing to a metal mounting surface, which is provided on the back surface of the body case (5). 2. A recess (7) into which a protrusion (4) of a mounting bracket (2) mounted on a wall surface of a structure is fitted on the back surface of a main body case (5), and a mounting surface of the mounting bracket (2). Gas alarm equipped with a magnet (6) for adsorbing to the gas. 3. A gas alarm according to claim 2, wherein the recess (7) is formed in the magnet (6).