JP4201643B2 - Sensor device for detecting fracture of laminated glass - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sensor device that detects that glass has been broken, and more particularly to a sensor device that detects that laminated glass has been broken.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been proposed an apparatus for detecting glass breakage by detecting vibration generated when glass such as a window is broken. FIG. 4 shows a block diagram of the configuration of a conventional glass breakage detection apparatus. In FIG. 4, a vibration detecting means 100 composed of a piezoelectric element or the like is bonded to a glass, and the vibration generated when the glass is broken is converted into an electric signal by the vibration detecting means 100.
[0003]
This electric signal is input to the filter circuit 102, and a signal having a component of a predetermined frequency is extracted. The vibration that occurs when the glass is smashed usually has a frequency component of about 100 KHz to 1 MHz, and the vibration that occurs when the glass is broken by a glass cutter usually has a frequency component of about 50 KHz. is doing. Therefore, if a signal having both frequency components is extracted by the filter circuit 102, the glass breakage can be detected both when the glass is smashed and when it is broken by the glass cutter.
[0004]
The signal extracted by the filter circuit 102 is amplified by the amplifier circuit 104 and processed by the signal processing circuit 106 to determine whether or not the glass is broken. An example of an apparatus for detecting such glass breakage is disclosed in Patent Document 1.
[0005]
[Patent Document 1]
JP-A-52-79695 [0006]
[Problems to be solved by the invention]
However, in the above-described conventional technology, the vibration detecting means 100 is used while being adhered to glass. However, the problem of the weather resistance of the vibration detecting means 100 and the fact that the person who wants to break and invade the glass strips it off. To avoid it, it is glued to the glass surface inside the room. On the other hand, when the glass is laminated glass, the resin layer is arranged between the glass plates of multiple layers, so even if the glass outside the room is destroyed, the generated vibration is absorbed by the resin layer, and the glass inside the room There is a high possibility that vibration will not be transmitted to the vibration detecting means 100 adhered to the surface. For this reason, the conventional apparatus for detecting glass breakage has a problem that detection of breakage of laminated glass is insufficient or impossible.
[0007]
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a laminated glass breakage detection sensor device capable of accurately detecting the breakage of laminated glass.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a first invention is a laminated glass breakage detection sensor device in which a resin layer is disposed between a pair of glass plates, and detects vibration of the glass and converts it into an electric signal. A detection means, a housing that accommodates the vibration detection means, a part of the surface of the wall is constituted by the detection surface of the vibration detection means, or the detection surface is disposed in contact with the inside of the wall, and an end of the laminated glass And a vibration transmitting member passed through both of the pair of glass plates so as to be in contact with both of the pair of glass plates. It is characterized by being bonded to one outer surface.
[0009]
According to the above configuration, even when a glass plate disposed outside the window or the like among the glass plates constituting the laminated glass is broken, the vibration is transmitted to the vibration detecting means by the vibration transmitting member. Can be detected with high accuracy.
[0010]
According to a second aspect of the present invention, there is provided a laminated glass breakage detection sensor device in which a resin layer is disposed between a pair of glass plates, the vibration detecting means for detecting the vibration of the glass and converting it into an electric signal, and the vibration And a housing in which a part of the surface of the wall is configured by the detection surface of the vibration detection unit or the detection surface is disposed in contact with the inside of the wall, and the detection surface is disposed on the housing The formed wall is a portion of the pair of glass plates cut out from one glass plate and the resin layer, and is bonded to the inner surface of the other glass plate.
[0011]
According to the above configuration, among the glass plates constituting the laminated glass, the wall on which the detection surface of the housing is disposed is bonded to the inner surface of the glass plate disposed on the outside of the window or the like. Vibration can be detected even when the glass plate disposed on the outside is broken, and the breakage of the laminated glass can be accurately detected.
[0012]
In the laminated glass break detection sensor device, the casing is formed in a triangular plate shape.
[0013]
According to the said structure, since the housing | casing is formed in the triangular plate shape, it can arrange | position to the corner | angular corners of window glass, such as a sash, and it can prevent that an apparatus does not stand out and impairs the aesthetics of a window.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.
[0015]
Embodiment 1. FIG.
FIG. 1 shows a cross-sectional view of a first embodiment of a laminated glass fracture detection sensor device according to the present invention. In FIG. 1, a vibration detection means 10 configured by a piezoelectric element or the like and detecting vibration of glass and converting it into an electric signal is accommodated in a housing 12. In this case, a part of the surface of the wall of the housing 12 is constituted by the detection surface 14 of the vibration detection means 10, or the detection surface 14 is disposed in contact with the inside of the wall of the housing 12. Here, that a part of the surface of the wall of the housing 12 is constituted by the detection surface 14 means that the detection surface 14 is exposed on the surface of the wall of the housing 12. Further, that the detection surface 14 is disposed in contact with the inner side of the wall of the housing 12 means that, for example, the vibration detection means 10 is attached to the inner surface of the wall of the housing 12. With such a configuration, the vibration of the glass can be detected by bonding the surface of the wall of the casing 12 on the side where the detection surface 14 exists to the glass. The material of the housing 12 is preferably a metal such as stainless steel for the wall to which the vibration detecting means 10 is attached in order to facilitate transmission of vibration to the detection surface 14. Other portions can be made of a resin such as aluminum or ABS. However, when a part of the surface of the wall of the housing 12 is constituted by the detection surface 14, the whole may be made of resin such as aluminum or ABS.
[0016]
The vibration of the glass detected on the detection surface 14 is converted into an electric signal by the vibration detecting means 10 and taken out through the amplifier 16, and the glass has a configuration as shown in FIG. Destruction is detected.
[0017]
As shown in FIG. 1, the laminated glass to which the casing 12 is bonded has a configuration in which a resin layer 22 is arranged between a pair of glass plates 20 a and 20 b (inside). As for the housing | casing 12 concerning this embodiment, the wall in which the detection surface 14 of the vibration detection means 10 is arrange | positioned is adhere | attached on the outer surface of one side (20b) of the glass plates 20a and 20b which comprise a laminated glass. The glass plate 20b on the side to which the housing 12 is bonded is a glass plate disposed inside the normal room.
[0018]
Further, when the casing 12 is bonded to the glass plate 20b, in the present embodiment, the casing 12 and the glass plate 20b are bonded via the vibration transmitting member 18. That is, the vibration transmission member 18 is interposed between the housing 12 and the glass plate 20b. The method for adhering the housing 12 and the vibration transmitting member 18 is not particularly limited, but for example, a method such as adhering with an adhesive can be used.
[0019]
The vibration transmitting member 18 is passed through the laminated glass end 24 so as to be in contact with both the pair of glass plates 20a and 20b. With such a configuration, even when the glass plate 20a outside the room is broken, the generated vibration is transmitted to the detection surface 14 of the vibration detecting means 10 bonded to the glass plate 20b inside the room by the vibration transmitting member 18. Thus, the destruction of the glass plate 20a can be detected. The material of the vibration transmission member 18 is not particularly limited as long as it is corrosion resistant and has good vibration transmission properties. For example, a metal material such as stainless steel or copper is preferably used.
[0020]
As shown in FIG. 1, a pair of glass plates 20 a and 20 b and a resin layer 22 are fitted into a frame 26 and the laminated glass is fixed to the frame 26 with a fixing material 28. For this reason, when the vibration transmission member 18 passes through the end portion 24 of the laminated glass, the vibration transmitting member 18 may pass through the fixing material 28 without contacting the end portion 24.
[0021]
Embodiment 2. FIG.
FIG. 2 shows a cross-sectional view of a second embodiment of the laminated glass fracture detection sensor device according to the present invention, in which the same elements as those in FIG. In FIG. 2, in the laminated glass, one glass plate 20b and the resin layer 22 of a pair of glass plates 20a and 20b are partially cut off. The glass plate 20b to be cut out is preferably the glass plate located on the inner side of the room. In the portion where the one glass plate 20b and the resin layer 22 are cut off, the wall on which the detection surface 14 of the housing 12 is disposed is bonded to the inner surface of the remaining glass plate 20a. The other remaining glass plate 20a is a glass plate located outside the room. The casing 12 is bonded to the glass plate 20a using an adhesive, but the type of the adhesive is not limited as long as it can be used for glass.
[0022]
In the present embodiment, when the glass plate 20a located outside the laminated glass room is destroyed by the configuration as described above, the housing 12 is bonded to the inside of the glass plate 20a. The vibration at the time of destruction can be detected by the detection surface 14.
[0023]
FIG. 3 shows a modified example of the laminated glass breakage detection sensor device according to the present embodiment. In FIG. 3, the housing 12 is formed in a triangular plate shape. The vibration detection means 10, the amplifier 16, and the like are accommodated in the housing 12 as in the embodiment of FIG.
[0024]
In FIG. 3, among the pair of glass plates 20a and 20b of the laminated glass, the glass plate 20b and the resin layer 22 located inside the room are cut out in a triangular shape at the corners of the laminated glass and removed. In the portion where the glass plate 20b and the resin layer 22 located inside the room are removed in a triangular shape, the casing 12 formed in the triangular plate shape is located on the other side, that is, outside the room. It is bonded to the inner surface of the glass plate 20a. Thus, in this modification, since the housing | casing 12 is attached to the corner | angular part of a laminated glass, it cannot be conspicuous from the outside and it can prevent impairing external appearances, such as a window.
[0025]
【The invention's effect】
As described above, according to the first invention of the present application, even when a glass plate disposed outside a window or the like among the glass plates constituting the laminated glass is broken, the vibration is vibrated by the vibration transmitting member. Since it is transmitted to the detecting means, it is possible to accurately detect the breakage of the laminated glass.
[0026]
Further, according to the second invention, among the glass plates constituting the laminated glass, the wall on which the detection surface of the housing is arranged is bonded to the inner surface of the glass plate arranged outside the window or the like. Even when the glass plate disposed outside the window or the like is broken, vibration can be detected, and the breakage of the laminated glass can be detected with high accuracy.
[0027]
Further, by forming the casing in the shape of a triangular plate, it can be arranged at the corner of a window glass such as a sash, so that the device is not conspicuous and the appearance of the window can be prevented from being impaired.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a laminated glass break detection sensor device according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view of a second embodiment of a sensor device for detecting fracture of a laminated glass according to the present invention.
FIG. 3 is a view showing a modification of the second embodiment of the laminated glass break detection sensor device according to the present invention.
FIG. 4 is a block diagram showing a configuration of a conventional glass breakage detection apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Vibration detection means, 12 Case, 14 Detection surface, 16 Amplifier, 18 Vibration transmission member, 20a, 20b Glass plate, 22 Resin layer, 24 Gap, 26 Frame,
28 Fixed material.

Claims (2)

A laminated glass in which a resin layer is disposed between a pair of glass plates, fitted into a frame, and a sensor device for detecting breakage of the laminated glass fixed to the frame by a fixing material ,
Vibration detection means for detecting glass vibrations and converting them into electrical signals;
A housing in which the vibration detection means is accommodated, a part of the surface of the wall is constituted by the detection surface of the vibration detection means, or the detection surface is disposed in contact with the inside of the wall;
A vibration transmission member passed between the end of the laminated glass and the frame and in contact with the outer surface of each of the pair of glass plates;
And the housing is bonded to one outer surface of the pair of glass plates with the vibration transmitting member interposed between the wall on which the detection surface is disposed. Destruction detection sensor device. A sensor device for detecting fracture of a laminated glass in which a resin layer is disposed between a pair of glass plates,
Vibration detection means for detecting glass vibrations and converting them into electrical signals;
A housing in which the vibration detection means is accommodated, a part of the surface of the wall is constituted by the detection surface of the vibration detection means, or the detection surface is disposed in contact with the inside of the wall;
The wall on which the detection surface is arranged is formed in accordance with the shape of one of the pair of glass plates and the corner of the resin layer cut out in a triangular shape. A laminated glass breakage detection sensor device, characterized in that it is bonded to the inner surface of the other glass plate at the other portion .

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