JP2010015424A - Security equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase safety from mischief of a child or the like while detecting both opening of an upper case and removal of a lower case from a wall by simple and inexpensive configurations. <P>SOLUTION: An abnormality detection sensor 5 is fixedly installed at the inside of an upper case 3, and a movable member 7 having a section 6 to be detected is installed in a lower case 2 so as to be movable backward and forward within a range in which extended end sections 7a and 7b are movable in transparent holes 2a and 2b. When security equipment 1 is normally fitted and mounted on a concave section P of a wall face W, the movable member 7 is positioned at a prescribed position where the extended end sections 7a and 7b are interposed between the wall face W and a flange part 4. When the upper case 3 is opened to the lower case 2, the part 6 to be detected is relatively separated backward, to detect an abnormal condition by a sensor 5. When the security equipment 1 is removed from the concave section P, the movable member 7 is relatively moved backward to the lower case 2, and the abnormal condition is detected by the sensor 5. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a security device attached to a wall surface of a building, such as a home controller of a security system.

  A security system provided in a building such as a house is constructed by providing various sensors and switches for disaster prevention and crime prevention in each part of the building, and providing a home controller for overall management of each sensor. . A home controller as a security device is configured by arranging a circuit board on which a control circuit or the like is mounted between a thin box-like lower case and an upper case that is provided on the front surface of the lower case and that constitutes a front panel. The And this home controller is attached in the state fitted in the recessed part formed in the wall surface of a building (indoor), monitors the signal from each said sensor, etc., when an abnormality is detected, it notifies to a user, or a security company The report is made to etc.

  By the way, in this kind of security system, for example, a bandit (such as a vacant nest) that has illegally entered a building can cancel monitoring by the system or invalidate security. It is assumed that the upper case is forcibly opened or the entire home controller is removed from the wall. Therefore, conventionally, this type of security device is provided with an abnormality detection sensor for detecting that the upper case is illegally opened or the entire device (lower case) is illegally removed from the wall. (For example, refer to Patent Document 1).

  At this time, separately providing the sensor for detecting the opening of the upper case and the sensor for detecting the removal of the lower case from the wall leads to an increase in cost and an increase in installation space. . Therefore, Patent Document 1 (particularly FIG. 2) uses a single microswitch having a detection lever to enable detection of both the opening of the upper case and the removal from the wall of the lower case. Is disclosed.

That is, in this security device, one switch (microswitch) is arranged on the back side of the substrate provided in the upper case, and the detection lever is connected to the outside (wall surface side) from the opening formed in the lower case. ) To protrude. As a result, in a normal state, the detection lever comes into contact with the wall surface (relatively pressed by the wall surface), the switch is on, the upper case is opened, and the lower case is removed from the wall. When the alarm occurs, the detection lever moves away from the wall surface and the switch is turned off (an abnormal signal is output).
JP-A-3-196297 (FIG. 2)

  In the configuration disclosed in Patent Document 1 described above, since both the opening of the upper case and the removal of the lower case from the wall can be detected by one switch, there is an advantage that a simple and inexpensive configuration can be achieved. On the other hand, there is room for improvement in the following points. That is, in the security device disclosed in Patent Document 1, a relatively large opening (hole) through which the detection lever protrudes is provided on the bottom surface of the lower case, and a switch that is an electrical component is disposed inside the opening. It is the composition which becomes. Therefore, for example, there is a possibility that a child is mischievous, and a thin metal rod or wire is inserted from the gap between the wall and the lower case, and is brought into contact with the switch through the opening to cause a failure.

  The present invention has been made in view of the above circumstances, and an object thereof is to prevent mischief of a child, etc. while detecting both the opening of the upper case and the removal of the lower case from the wall with a simple and inexpensive configuration. It is in providing the security apparatus which can raise safety | security.

  In order to achieve the above object, the security device of the present invention is provided with a sensor for detecting abnormality fixedly inside the upper case, and a movable member having a detected part detected by the sensor in the lower case. A through-hole formed in the movable member so as to be movable in the front-rear direction, which is an opening / closing direction of the upper case with respect to the lower case, and a fitting / removal direction with respect to the recess of the wall of the lower case. An extending end projecting outward through the hole is provided, and the movable member is fitted into the recess of the lower case, and the extending end is fixed by the wall surface and the lower case to be in a predetermined position in the lower case. When the lower case is moved in the direction of removal from the recess, it is relatively rearward with respect to the lower case. It is configured to move, and the abnormality detection sensor detects the detected portion of the movable member at a normal time, and when the upper case moves in an opening direction with respect to the lower case, the sensor detects the predetermined part. The separation of the detected portion is detected by moving forward with respect to the movable member at the position, and when the lower case moves in the direction of removal from the recess, the movable member is relatively rearward with respect to the lower case. It is characterized in that it is configured to detect the separation of the detected part by moving to (invention of claim 1).

  According to this, both the opening of the upper case and the removal from the wall of the lower case can be detected by one abnormality detection sensor, and a simpler and cheaper configuration can be achieved compared to the case of providing two sensors. be able to. In order for the extended end of the movable member to move in the front-rear direction with respect to the lower case, translucent light extending in the front-rear direction is provided on the peripheral wall portion of the lower case, but this through-hole allows the extension end to move. Since only a movable member is exposed to the outside, it is possible to reduce the possibility of sensor failure due to child mischief or the like.

  In the present invention, the lower case has a flange portion disposed in front of the peripheral portion of the concave portion of the wall surface around the tip opening portion, and the thickness of the extended end portion of the movable member at the outer peripheral end portion of the flange portion. A folded portion that is bent on the wall surface side with a dimension equal to or greater than the above is provided, and the extended end portion of the movable member is disposed inside the folded portion when attached to the recess. (Invention of claim 2). According to this, since the extended end portion and the through hole of the movable member are located on the back surface side of the flange portion and are hidden from the outside, it is possible to prevent problems such as the unauthorized operation of the movable member from the outside. Can be more effective.

  Various sensors such as a transmission type optical sensor (photo interrupter), a reflection type optical sensor, a proximity sensor using magnetism, and a mechanical micro switch can be employed as the abnormality detection sensor. In the present invention, as long as there is no problem with wiring or the like, a sensor for detecting an abnormality may be provided on the movable member side, and a detected part may be provided inside the upper case. Obtainable.

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In addition, as shown in FIG. 2, the security device 1 according to the present embodiment is attached in a state of being fitted into a concave portion P provided on a wall surface W of a building interior. When referring to the left-right and up-down directions, the state viewed toward the wall surface W (see FIG. 3A) will be described as the front. Accordingly, the arrow A direction (see FIG. 2B) is the front, and the opposite arrow B direction (see FIG. 2C) is the rear (back side).

  As shown in FIGS. 1 to 3, a security device (for example, a home controller of a security system) 1 of this embodiment includes a lower case 2 made of a synthetic resin and an upper case that covers a front opening of the lower case 2 so as to be opened and closed. Although not shown in the figure, an electronic circuit board on which electronic components (such as a control circuit) necessary for realizing a security function are mounted is incorporated in a main body case configured by combining the three.

  Among them, the lower case 2 has a rectangular rear end (base end) surface portion and a peripheral wall portion rising on the periphery (four sides) as shown in FIG. 4 (shown with the front side facing upward in FIG. 4). It is configured in a thin rectangular box shape before and after the front surface (tip surface) opens. Further, the lower case 2 is integrally provided with a flange portion 4 disposed on the front surface of the peripheral portion of the concave portion P of the wall surface W around the front opening portion (the entire circumference of the four sides). A folded portion 4 a that is bent to the wall surface W side (rear side) is integrally provided at the outer peripheral end portion of 4. The front-rear direction dimension a (see FIG. 1B) of the folded portion 4a is configured to be equal to or slightly larger than the thickness dimension b of the extended end portions 7a and 7b of the movable member 7 described later.

  As shown in FIGS. 1 to 3, the upper case 3 has a shape corresponding to the outer shape of the flange portion 4 of the lower case 2 and has a thin rectangular box shape before and after the rear side is opened. Although not shown in detail, the front surface of the upper case 3 is an operation panel, and a switch (key) operated by the user, a display unit such as a lamp, a speaker for voice notification, and the like are provided. Has been. The upper case 3 is attached to the lower case 2 so that the rear end surface thereof is in contact with the outer peripheral end of the front surface of the flange portion 4, and covers the front opening of the lower case 2 so as to be opened and closed. ing. At this time, normally, the upper case 3 is locked to the lower case 2 so as not to be opened, and the upper case 3 can be opened by, for example, a serviceman of a security company using a dedicated key.

  As shown in FIG. 2 (a), the security device 1 is fitted in a recess P formed in a size corresponding to the lower case 2 on the wall surface W of the building with the base end surface portion of the lower case 2 at the rear rear side. It is assumed that At this time, as described above, the flange portion 4 of the lower case 2 is arranged in front of the peripheral portion of the concave portion P of the wall surface W. In this state, the security device 1 (lower case 2) is fixed to the wall surface W by a method that is not easily removed such as screwing at a plurality of locations.

  Now, in the security system, for example, an upper case of the security device 1 described above in order for a bandit (empty nest, etc.) illegally entering the building to cancel monitoring by the system or to invalidate the security. It is assumed that the user wants to forcefully open 3 or remove the entire security device 1 from the wall surface W. Therefore, in the security device 1 of the present embodiment, it is detected that the upper case 3 is illegally opened from the lower case 2 or that the entire security device 1 (lower case 2) is illegally removed from the wall surface W (concave portion P). An abnormality detection means for doing this is incorporated as follows.

  That is, as shown in FIGS. 1A and 2, in this embodiment, the abnormality detecting means is provided with an abnormality detecting sensor 5 fixedly inside the upper case 3 and on the lower case 2 side. A movable member 7 having a detected portion 6 detected by the sensor 5 is provided. In this case, the sensor 5 is composed of a transmissive optical sensor (photo interrupter) configured by, for example, arranging a light emitting element and a light receiving element facing each other in a U-shaped holder, and an object that has entered the recess 5a is an optical path. The presence or absence of an object is detected based on blocking.

  The sensor 5 is located at the center of the back surface (inner surface) of the upper case 3, with the optical path (optical axis) direction being the vertical direction, and with the recess 5 a opened rearward, either directly or not shown. Arranged via a circuit board. Although not shown, the sensor 5 is energized and controlled by the control circuit (for example, intermittent energization of several tens of msec per second), and a signal (detection signal for the presence or absence of an object) is input to the control circuit. ing.

  As shown in FIG. 4, the movable member 7 has a thin thin plate shape that is long in the vertical direction and thin in the front-rear direction, and is a thin plate-like detected portion that projects horizontally forward on the front surface of the central portion in the vertical direction. 6 is integrated. As shown in part in FIG. 3, the movable member 7 has both upper and lower end portions penetrating through holes 2 a and 2 b formed in the peripheral wall portions (upper wall portion and lower wall portion) of the lower case 2. The upper and lower outer portions protrude slightly from the upper and lower sides, and the upper and lower protruding portions are extended end portions 7a and 7b, respectively.

  At this time, the through-holes 2a and 2b are formed at the front end side portions of the central portions of the upper and lower walls of the lower case 2 and extending in the front-rear direction. The movable member 7 is in the opening / closing direction of the upper case 3 with respect to the lower case 2 and within the concave portion of the wall surface W of the lower case 2 within a range in which the extended ends 7a, 7b can move in the through holes 2a, 2b with respect to the lower case 2. It is supported so that it can move freely in the front-rear direction, which is the insertion / removal direction with respect to P.

  In the state where the lower case 2 (security device 1) is fitted and attached to the concave portion P of the wall surface W, the movable member 7 has the extension end portion as shown in FIGS. 2 (a) and 2 (b). 7 a and 7 b are located at the front ends in the through holes 2 a and 2 b and are sandwiched between the wall surface W and the flange portion 4, and are fixed to the lower case 2. The position of the movable member 7 with respect to the lower case 2 is referred to as a predetermined position.

  At this time, as shown in FIG. 1 (b), the folded dimension 4a of the folded part 4a of the flange part 4 of the lower case 2 is equal to or greater than the thickness dimension b of the extended end parts 7a, 7b (movable member 7). In the attached state of the lower case 2 to the recess P, the extended end portions 7a and 7b are arranged inside the folded portion 4a on the back surface side of the flange portion 4 so as to be hidden from the outside. It has become.

  When the upper case 3 is normally coupled (closed) to the lower case 2 at a predetermined position of the movable member 7, that is, in a normal time (normal time), the state shown in FIG. As shown, the detected portion 6 of the movable member 7 is inserted into the recess 5a of the sensor 5 so as to block the optical path.

  On the other hand, when the upper case 3 moves in the opening direction (in the direction of arrow A which is the front) with respect to the lower case 2, as shown in FIG. 2B, the sensor 5 moves the movable member 7 at the predetermined position. Therefore, the sensor 5 detects an abnormality when the detected part 6 moves relatively far from the recess 5a and moves relative to a position where light is transmitted. It is. In this case, the positional relationship between the sensor 5 and the detected portion 6 is configured such that an abnormality (light transmission) can be detected when the upper case 3 moves from the normal state in a direction of, for example, 5 to 15 mm in the arrow A direction. Has been.

  Further, as shown in FIG. 2 (c), the movable member 7 has a lower case 2 (security device 1) when the lower case 2 (security device 1) is moved in the direction of removal from the recess P (direction of arrow A which is the front). It is configured to move backward (in the direction of arrow B) relative to (through holes 2a, 2b). Also in this case, since the movable member 7 moves rearward relative to the lower case 2, the detected portion 6 moves rearward relative to the sensor 5, so that the abnormality is detected by the sensor 5. .

  In addition, when an abnormality is detected by the sensor 5 (control circuit), the security device 1 (control circuit) notifies the security company or the police to that effect by generating an alarm sound or displaying a lamp. To report. In this case, for example, when a serviceman of a security company opens the upper case 3 for maintenance or removes the lower case 2 (the entire security device 1) from the recess P, abnormality detection (report) by the sensor 5 is performed. Of course, can be invalidated.

  Next, the operation and effect of the above configuration will be described. As described above, when the security device 1 is installed on the wall surface W, as shown in FIG. 2A, the extended end portions 7 a and 7 b of the movable member 7 are sandwiched between the wall surface W and the flange portion 4. The movable member 7 is in a predetermined position. Therefore, at normal times, the detected portion 6 of the movable member 7 is inserted into the recess 5a of the sensor 5 to block the optical path, and thus the sensor 5 detects the normal state. .

  On the other hand, as described above, for example, a bandit (empty nest, etc.) illegally invading the building tries to forcefully open the upper case 3 of the security device 1 or remove the entire security device 1 from the wall surface W. And sometimes. Now, when the upper case 3 is pulled in the direction of arrow A and forcibly opened, the sensor 5 fixed to the upper case 3 side is movable at the predetermined position as shown in FIG. Since the member 7 moves forward with respect to the member 7, the detected portion 6 is moved relatively rearward from the recess 5 a, so that the abnormality is detected by the sensor 5. When an abnormality is detected by the sensor 5, as described above, an alarm is generated and a notification to the management company is made.

  When the entire security device 1 is pulled from the wall surface W (concave portion P) in the direction of the arrow A and is about to be removed, the movable member 7 is moved to the lower case 2 as shown in FIG. It moves backward (arrow B direction) relative to (through holes 2a, 2b). As a result, the detected portion 6 of the movable member 7 moves relatively rearward from the sensor 5, so that the abnormality is detected by the sensor 5. In this case as well, an alarm is generated and a notification is sent to the management company.

  Thus, in the configuration of the present embodiment, it is possible to detect two types of abnormalities, that is, the opening of the upper case 3 and the removal from the wall surface W of the lower case 2 by one abnormality detecting sensor 5. Compared with the case where a sensor is provided, a simple and inexpensive configuration can be achieved.

  In this embodiment, since the sensor 5 is operated via the movable member 7, the lower case 2 is different from the conventional one in which a microswitch or the like is disposed in the opening formed in the lower case. The through holes 2a, 2b provided are relatively small enough to allow the movement of the extending ends 7a, 7b of the movable member 7 in the front-rear direction, and only the movable member 7 is exposed to the outside. The possibility that the sensor 5 breaks down due to a child's mischief or the like is reduced.

  In particular, in this embodiment, the extended end portions 7a and 7b of the movable member 7 are positioned on the back side of the flange portion 4 of the lower case 2 and are hidden from the outside. It is possible to prevent inconveniences such as being operated in advance.

  In the above-described embodiment, a means for forcibly moving the movable member 7 backward (in the direction of arrow B) relative to the lower case 2 when the entire security device 1 is removed from the wall surface W is particularly provided. Although not, means for urging the movable member 7 (extended end portions 7a, 7b) backward with respect to the lower case 2 (through holes 2a, 2b) (for example, a spring member such as a coil spring or a leaf spring) By providing this, the operation of the movable member 7 becomes more reliable. In this case, as a matter of course, a separate spring member may be provided. For example, an elastic piece portion is cut and raised integrally with the movable member 7 and the tip of the elastic piece portion is attached to the lower case 2. By making the contact elastically, the urging means can be provided with a simple configuration.

  In addition, the above-described abnormality detection sensor is not limited to a transmission type optical sensor (photo interrupter), but various types such as a reflection type optical sensor, a proximity sensor using magnetism, and a mechanical micro switch are employed. be able to. Further, in the present invention, as long as there is no problem with wiring or the like, an abnormality detection sensor may be provided on the movable member side, and a detected portion may be provided inside the upper case. The present invention can be implemented with appropriate modifications within a range that does not depart from the gist, such as being able to obtain effects.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows an embodiment of the present invention, in which (a) is a schematic longitudinal right side view of a security device (cross-sectional view taken along the line I-I in Fig. 3 (a)), and (b) is a part C thereof. Enlarged view Vertical right side view showing a state in which the security device is normally attached to the wall surface (a), a state in which the upper case is pry open (b), and a state in which the whole is removed from the wall surface (c). Front view (a), right side view (b), bottom view (c) of security device A perspective view of the lower case with a part of the flange portion broken away with the opening side facing upward

Explanation of symbols

  In the drawings, 1 is a security device, 2 is a lower case, 2a and 2b are through holes, 3 is an upper case, 4 is a flange portion, 4a is a folded portion, 5 is a sensor, 6 is a detected portion, 7 is a movable member, 7a 7b is an extended end, W is a wall surface, and P is a recess.

Claims (2)

An electronic component that realizes a security function is accommodated between a lower case that has a base end surface portion and a peripheral wall portion that rises around the base end surface, and an upper case that opens and closes the front end opening portion of the lower case. It is configured as a security device that is attached in a state where the base end surface portion of the lower case is fitted to the rear back side in the recess formed on the wall surface of the building,
An abnormality detection sensor is fixedly provided inside the upper case, and a movable member having a detected portion detected by the sensor in the lower case is in an opening / closing direction of the upper case with respect to the lower case, and The lower case is provided so as to be movable in the front-rear direction, which is a fitting / removing direction with respect to the concave portion,
The movable member has an extended end portion that protrudes outward through a through hole formed in the peripheral wall portion of the lower case and extending in the front-rear direction. When the portion is fixed by the wall surface and the lower case, the portion is disposed at a predetermined position in the lower case, and when the lower case is moved in the removing direction from the recess, the relative to the lower case Configured to move backwards,
The abnormality detection sensor is configured to detect a detected portion of the movable member in a normal state, and when the upper case moves in an opening direction with respect to the lower case, the sensor is in the predetermined position. The separation of the detected part is detected by moving forward with respect to the movable member, and when the lower case moves in the direction of detachment from the recess, the movable member moves rearward relative to the lower case. A security device configured to detect the separation of the detected part by doing so.   The lower case has a flange portion disposed on the front surface of the peripheral portion of the concave portion of the wall surface around the front end opening portion, and is equal to or greater than the thickness of the extending end portion of the movable member at the outer peripheral end portion of the flange portion. The folded portion is provided on the wall surface side with the dimension of, and the extended end portion of the movable member is disposed inside the folded portion when attached to the recess. The security device according to claim 1.

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