JPH0793670A - Glass destruction detector and door-open detector using the same - Google Patents

Abstract

PURPOSE:To simplify structure and to increase adhesive strength on the glass surface of a glass destruction detector by housing a magnetic element in a hole part provided on the back plane of the glass destruction detector with a built-in reed switch element. CONSTITUTION:This detector is constituted of the magnetic element 1, the reed switch element 2, and the glass destruction detector 3, and the glass destruction detector 3 is mounted on the glass surface 4, and also, the hole part 5 is formed on the back plane 3a of the glass destruction detector 3 to house the magnetic element 1. The glass destruction detector 3 is used by mounting the whole back plane 3a on the glass surface 4 after the magnetic element 1 is housed in the hole part 5. By employing such constitution, since the magnetic element 1 housed in the hole part 5 can be released by making the glass destruction detector 3 come off the glass surface 4, it is separated from the reed switch element 2 provided in the glass destruction detector 3, and an alarm is outputted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass breakage detector and a door opening detector using the same. More specifically, using a combination of a reed switch element and a magnet element,
The present invention relates to a glass breakage detector that detects that a glass breakage detector has detached from a glass surface and outputs an alarm signal, and a door-opening detector that uses the glass breakage detector to detect opening and closing of a glass window.

[0002]

2. Description of the Related Art A glass breakage detector of this type is used by being stuck on a glass surface, and when a glass surface is broken, it detects a vibration wave of a unique frequency component and outputs an alarm signal. It is supposed to do. However, such a glass breakage detector is apt to peel off due to aging when it is attached to the glass surface, and therefore, measures have been taken to prevent such a glass breakage detector from peeling.

FIG. 6 shows a glass breakage detector 1
00 is provided with a micro switch actuation piece 101, and when the glass breakage detector 100 is attached to the glass surface 102, the actuation piece 101 is sunk against the elastic force (see FIG. )), When the glass breakage detector 100 falls off from the glass surface 102, the operating piece 101 projects due to the elastic force, and an alarm is output at this time ((B) in the same figure).

In the structure shown in FIG. 7, a reed switch element 103 is built in the glass breakage detector 100 side, a magnet element 104 is juxtaposed close to the reed switch element 103, and the magnet element 104 is attached to the glass surface 102. When the glass breakage detector 100 or the magnet element 104 is detached from the glass surface 102, the reed switch element 103 is turned on to output an alarm.

[0005]

However, as shown in FIG.
In the glass breakage detector having the structure shown in FIG. 1, since the glass breakage detector 100 is provided with the projecting operating piece 101 on the back surface, the hermeticity with the glass surface 102 is poor and the glass surface 10
There was a drawback that it was easier to fall off than 2. In addition, the structure shown in FIG. 7 has a two-piece structure, so that the magnet element 104 and the glass breakage detector 1 are conspicuous in appearance.
There is a drawback in that two bonding reliability for 00 is required.

The present invention is proposed to solve these problems, and its purpose is to simplify the structure,
Another object of the present invention is to provide a glass breakage detector which has a high adhesion strength to the glass surface of the glass breakage detector and a door opening detector using the glass breakage detector.

[0007]

SUMMARY OF THE INVENTION The present invention is proposed to achieve the above object. According to claim 1, a glass breakage detector has a reed switch element built therein and a glass breakage detector. On the back side of the device, a hole is opened on the back side, and the structure is such that the magnet element is housed in the hole. When the magnet element comes off the hole, an alarm signal is output to detect the glass breakage. It has a structure that detects detachment from the glass surface of the container.

A door opening detector is proposed in claim 2, and a magnet element housed in the hole of the glass breakage detector described in claim 1 and another reed switch element attached to the window frame side. It has a structure that combines. Furthermore,
According to a third aspect of the present invention, the glass breakage detector according to the first aspect has a structure in which another magnet element is incorporated, and a structure in which this magnet element and a reed switch element attached to the window frame side are combined is provided. Door detectors have been proposed.

[0009]

According to the glass breakage detector of the first aspect, the magnet element is housed in the hole opened on the back surface of the glass breakage detector, and is stuck to the glass surface as it is. Then, when the glass is broken, the glass breakage detection circuit provided inside the glass breakage detector detects this and outputs an alarm.

Also, when the glass breakage detector falls off the glass surface due to aging, the magnet element drops off from the hole formed on the back surface of the glass breakage detector, so the reed switch element is turned on and the same alarm occurs. Is output. According to the door opening detector of the second aspect, the same operation as that of the first aspect is performed when the door is detached from the glass surface, but the opening and closing can be detected by changing the attachment position to the window glass. .

That is, when the window is closed, the magnet element housed in the hole formed by opening the back surface of the glass breakage detector turns off the reed switch element provided on the window frame side. When the window is opened, the magnet element and the reed switch element are separated from each other, so that the window is turned on and an alarm is generated. Further, in the door opening detector according to claim 3, a magnet element is provided on the window frame side instead of the reed switch element, and another reed switch element corresponding to the magnet element is further provided on the glass breakage detector side. The reed switch element and the magnet element perform the same operation detection as in claim 2 according to the opening and closing of the window.

[0012]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a perspective view of a different embodiment. Reference numeral 1 is a magnet element, 2 is a reed switch element, and 3 is a glass breakage detector. Reference numeral 4 is a glass surface on which the glass breakage detector 3 is attached, and 5 is a hole formed on the back surface 3a of the glass breakage detector 3 that houses the magnet element. In this figure, the actual electrical wiring is omitted.

The glass breakage detector 3 is used by housing the magnet element 1 in the hole 5 and then attaching the entire back surface 3a to the glass surface 4. According to such a structure, when the glass breakage detector 3 falls off the glass surface 4, the magnet element 1 housed in the hole 5 is discharged from the hole 5, so that the inside of the glass breakage detector 3 is detected. It separates from the provided reed switch element 2 and outputs an alarm.

In the embodiment shown in FIG. 2, the magnet element 1 is formed into a spherical shape so that it can be easily discharged from the hole 5, and the bottom of the hole 5 has a spherical surface 5a. FIG. 3 schematically shows the configuration of the circuit portion of the glass breakage detector of the present invention. The GBD is a glass breakage detection circuit that detects the frequency component of a peculiar vibration wave generated when the glass breaks,
Reference numeral 2 is a reed switch element, and 1 is a magnet element.
In the figure, the reed switch element 2 uses a normally open contact type, but a normally closed contact type may be used (the circuit configuration naturally changes). In the figure, the glass breakage detection circuit GB
When either the D or the reed switch element 2 is operated, a loop is formed, a current flows from the battery E, and the alarm means B is activated to output an alarm. The dropout may be detected and the alarm when the glass is broken may be differentiated from each other.

FIG. 4 shows an embodiment of the door opening detector of the present invention. When falling from the glass surface, the glass breakage detector outputs an alarm by the same operation as in claim 1, but it is housed in the hole of the glass breakage detector 3 by opening and closing (opening in the figure) the window 7. The magnet element 1 is separated from the reed switch element 6 provided on the window frame side to output an alarm and detect the opening of the door.

In FIG. 5, another magnet element 8 is provided on the window frame side in place of the reed switch element, and another reed switch element 9 corresponding to the magnet element 8 is provided on the glass breakage detector 3 side. Therefore, the hole 5 for accommodating the magnet element 1 is formed small, which corresponds to another magnet element 8 provided on the window frame side in parallel with the hole 5. Another reed switch element 9 is provided. According to the opening / closing (sliding direction) of the window 7, the reed switch element 9 separates from the magnet element 8 provided on the window frame side, the reed switch element 9 is turned on, an alarm is output, and a door opening is detected. Has become.

[0017]

[Effect] In the glass breakage detector according to the first aspect, since the magnet element is only detachably built in the glass breakage detector, the installation is easy and the glass breakage detector is integrated with the glass breakage detector. Since it can be stored, the space for mounting can be saved. Moreover, in the door opening detector according to claim 2 or 3, the door opening detector is configured by disposing a reed switch element or a magnet element, which is separate from the glass breakage detector, on the window frame side. Since it is installed, it is easy to install and does not disturb the appearance when opening and closing.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a glass breakage detector according to the present invention.

FIG. 2 is a view showing another embodiment of the glass breakage detector according to the present invention.

FIG. 3 is a schematic diagram showing a circuit configuration of a glass breakage detector of the present invention.

FIG. 4 is a schematic explanatory view showing an embodiment of a door opening detector according to the present invention.

FIG. 5 is a schematic explanatory view showing another embodiment of the door opening detector according to the present invention.

FIG. 6 is a schematic explanatory view showing an example of a conventional glass breakage detector.

FIG. 7 is a schematic explanatory view showing another example of a conventional glass breakage detector.

[Explanation of symbols]

 1 magnet element 2 reed switch element 3 glass breakage detector 4 glass surface 5 hole 6 another reed switch element 7 window 8 another magnet element

Claims (3)

[Claims] 1. A glass breakage detector having a built-in glass breakage detection sensor, which is attached to a glass surface for use, wherein the glass breakage detector has a built-in reed switch element and a glass breakage detector. A glass breakage detector is provided on the back surface with a hole opening on the back surface, and a magnet element is housed in the hole, and an alarm signal is output when the magnet element comes off from the hole. Glass breakage detector designed to detect the detachment of the glass from the glass surface. 2. A door-opening detector formed by combining the magnet element housed in the hole of the glass breakage detector according to claim 1 and another reed switch element attached to the window frame side. . 3. The glass breakage detector according to claim 1, wherein another reed switch element is built in and attached to a window glass, and the other reed switch element and a magnet element attached to the window frame side. An open door detector configured by combining and.