JP7261764B2 - Security system - Google Patents

Description

The present invention relates to security systems.

2. Description of the Related Art In a building such as a house, a crescent lock is provided as a locking device for a sash door provided in a window. The crescent lock has a crescent attached to one sash door and a crescent receiver attached to the other sash door. It is designed to be The crescent lock is provided with a slide button for locking the crescent in the locked state. The slide button is slidable between a lock position for locking the crescent and an unlock position for unlocking it.

Patent Literature 1 discloses a crescent device in which a crime prevention device is incorporated in a crescent lock in order to prevent illegal entry through a window. The crescent device of Patent Document 1 incorporates a first detection section that detects the open/closed state of the sash door and a second detection section that detects that the slide button is in the lock position. In this crescent device, when the second detector detects that the slide button is in the locked position, that is, when the crescent lock is in the locked state, the first detector detects When the open/close state of the sash door switches from the closed state to the open state, it is determined that the sash door has been forced open by someone. Then, when it is determined that the sash door has been forced open, the fact is notified to the residents. As a result, residents can take prompt measures against illegal entry into the building, such as reporting to the police.

JP-A-2004-232293

By the way, it is conceivable that a security device may be retrofitted to an existing building when it is renovated. Here, in the crescent device of Patent Document 1, the crime prevention device including the first detection unit and the second detection unit is incorporated inside the crescent device. It is necessary to remove the lock and then install the above crescent device with anti-theft device. However, it is considered that such replacement work is labor-intensive and involves difficulties.

In addition, since there are a plurality of types of crescent locks according to the shape of the sash door, when the crescent device of Patent Document 1 is attached instead of the crescent lock, a plurality of types of crescent devices are used accordingly. It becomes necessary to prepare the following items. However, preparing multiple types of crescent devices may result in a large burden in terms of management and cost.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its main object is to provide a security system that can be retrofitted to an existing building relatively easily.

In order to solve the above-mentioned problems, a security system of the first invention opens and closes a building opening, and includes a pair of opening and closing bodies provided in opposite directions, and a crescent lock for locking each of the opening and closing bodies in a closed state. The crescent lock includes a crescent rotatably attached to the inner opening/closing body on the indoor side of the opening/closing bodies, and a crescent receiver attached to the outer opening/closing body on the outdoor side of the opening/closing bodies. The crescent has a handle for rotating operation, and when the handle is rotated to a locking position, it is engaged with the crescent receiver, and the engagement locks the crescent lock. A first detection part is attached to one of the outer surface of the handle and the outer surface of the inner opening/closing body, and the other is attached to the first detection part for detecting the first detection part. The first detection part and the first detection part are attached to a predetermined position where the first detection part is detected by the first detection part when the handle is positioned at the locking position. A second detected portion is attached to either one of the outer surface of the handle and the outer surface of the outer opening/closing body, and a second detecting portion for detecting the second detected portion is attached to the other. The second detection part and the second detection part are attached so that the second detection part and the second detection part are connected to the second detection part when the handle is positioned at the locking position in the closed state of each of the opening/closing bodies. from a state in which the first detected portion is detected by the first detection portion and the second detected portion is detected by the second detection portion, the It is characterized by comprising control means for executing a predetermined warning process when the first detection part is detected by the first detection part and the second detection part is not detected by the second detection part. and

According to the first invention, the first detected part is attached to one of the outer surface of the handle of the crescent and the outer surface of the inner opening/closing body to which the crescent is attached, and the first detecting part is attached to the other. ing. The first detection section and the first detection section are arranged in a predetermined positional relationship such that the first detection section is detected by the first detection section when the steering wheel is positioned at the locked position. A second detected portion is attached to one of the outer surface of the handle and the outer surface of the outer opening/closing body, and the second detecting portion is attached to the other. The second detection section and the second detection section are arranged in a predetermined positional relationship such that the second detection section is detected by the second detection section when the handle is positioned at the locking position in the closed state of each opening/closing body. ing.

A state in which the first detection portion is detected by the first detection portion and the second detection portion is detected by the second detection portion, that is, a state in which the crescent lock is in a locked state and each opening/closing member is in a closed state ( (normally locked state) to a state in which the first detection portion is detected by the first detection portion and the second detection portion is not detected by the second detection portion, that is, the crescent lock is in the locked state and each opening/closing member is in the open state. When the state shifts to a certain state, a predetermined warning process is executed. That is, when the opening/closing body is opened while the crescent lock is in the locked state, a predetermined warning process is executed. In this case, the warning process includes, for example, a notification process of notifying residents living in the building and an external organization such as the police, and a threatening process of intimidating a suspicious person by emitting sound or light. As a result, when the opening/closing body is forcibly opened by someone while the crescent lock is in a locked state, it is possible to quickly take countermeasures and prevent intrusion into the building. Therefore, it is possible to improve security.

In addition, since the first detecting portion and the first detected portion are attached to the outer surface (outer surface) of the handle of the crescent and the outer surface (outer surface) of the inner opening/closing member, respectively, the first detecting portion and the first detected portion The section can be attached to existing crescents and inner closures. In addition, since the second detecting portion and the second detected portion are attached to the outer surface (outer surface) of the handle of the crescent and the outer surface (outer surface) of the outer opening/closing member, respectively, the second detecting portion and the second detected portion Each section can be attached to an existing crescent and outer closure.

In addition, since one of the first detection part and the first detection part is attached to the handle of the crescent, when the first detection part and the first detection part are attached to the handle and the inner opening/closing body, they must be removed. The mounting work can be performed after moving the handle to a position where it is easy to mount. Similarly, since one of the second detecting portion and the second detected portion is also attached to the handle, when attaching them to the handle and the outer opening/closing body, the handle must be moved to a position where they can be easily attached. After that, the installation work can be carried out. Therefore, in this case, it can be retrofitted to an existing building relatively easily.

A security system according to a second invention is characterized in that, in the first invention, when the handle is in the locking position, the handle and the inner opening/closing body face each other in the opening/closing direction of the inner opening/closing body. The first detecting portion is attached to one of the facing surfaces of the two, and the first detected portion is attached to the other.

According to the second invention, when the handle of the crescent is in the locked position, the first detection part and the first detected part are arranged between the handle and the inner opening/closing body facing each other. Thereby, the first detection part and the first detected part can be made inconspicuous.

According to a third aspect of the security system, in the first or second aspect, when the handle is in the locked position, the handle and the outer opening/closing body face each other in the indoor and outdoor directions, and The second detecting portion is attached to one of the opposing surfaces, and the second detected portion is attached to the other.

According to the third invention, when the handle of the crescent is in the locked position, the second detecting portion and the second detected portion are arranged between the handle and the outer opening/closing body facing each other. In this case, since the second detection part and the second detected part are arranged on the back side of the steering wheel when viewed from the indoor side, both of them can be made inconspicuous.

A security system according to a fourth aspect of the invention is the security system according to the first aspect, wherein the first detection section is attached to the outer surface of the inner opening/closing body, the second detection section is attached to the outer surface of the outer opening/closing body, and the A common third detected portion corresponding to each of the first detected portion and the second detected portion and detected by both the first detected portion and the second detected portion is provided on the outer surface of the handle. The first detection part, the second detection part and the third detection part are attached so that the third detection part is connected to the first detection part and the second detection part when the handle is positioned at the locking position. It is characterized by being arranged in a predetermined positional relationship detected by each of the detection units.

According to the fourth invention, the first detection section is attached to the outer surface of the inner opening/closing body, the second detection section is attached to the outer surface of the outer opening/closing body, and the first detection section and the second detection section are attached to the outer surface of the handle. A common third sensed part is attached that is sensed by both. In this case, since only one detected part needs to be attached to the handle, retrofitting can be further facilitated.

A crime prevention system according to a fifth aspect of the invention is the security system according to any one of the first to fourth aspects, wherein the control means carries out notification processing for notifying an external device that the opening/closing member has been opened as the warning processing. characterized by

According to the fifth invention, when the opening/closing body is opened even though the crescent lock is in the locked state, the external device is notified to that effect. Examples of external devices include mobile devices carried by residents of the building when they go out, and external servers provided in external organizations such as the police. As a result, if the opening/closing member is forcibly opened by a suspicious person while the occupants of the building are out, it is possible to take prompt action.

Further, when an earthquake occurs while the crescent lock is locked, it is assumed that the opening/closing body vibrates and the crescent lock is destroyed. In that case, there is a possibility that the opening/closing body may be opened unintentionally. In particular, when the opening/closing member is a door that opens and closes the entrance of a building, or is a sash door with double glazing, the weight of the opening/closing member increases, and this situation is likely to occur. be done. In this regard, according to the fifth aspect of the invention, even in such a case, the opening of the opening/closing member is notified to the external device.

The front view which shows the window part of a building. The perspective view which shows a crescent lock. The front view which shows a crescent lock. (a) is a cross-sectional view taken along the line AA of FIG. 3, and (b) is a cross-sectional view showing how the sash door is forced open from the state of (a). The figure which shows the electrical structure of a security system. 4 is a flowchart showing security processing; Sectional drawing which shows the periphery of the crescent lock in other embodiment.

An embodiment embodying the present invention will be described below with reference to the drawings. In addition, FIG. 1 is a front view which shows the window part of a building.

As shown in FIG. 1, a building 10 such as a house is provided with an outer wall 11 that separates the inside from the outside. The outer wall portion 11 is provided with a window portion 12 as a building opening that communicates between the inside and the outside. The window part 12 is used as a sweep window (doorway), and it is possible to go in and out between indoors and outdoors through the window part 12 .

A window frame 14 is provided on the peripheral portion of the window portion 12 . A pair of sash doors 15 are provided inside the window frame 14 in a sliding manner. The pair of sash doors 15 includes a sash door 15a arranged on the indoor side and a sash door 15b arranged on the outdoor side. The window portion 12 is opened and closed by these sash doors 15a and 15b. The sash door 15a corresponds to the inner opening/closing body, and the sash door 15b corresponds to the outer opening/closing body.

Each sash door 15 has a rectangular sash frame 16 and a glass plate 17 fitted in the sash frame 16 . The sash frame 16 has a pair of vertical beams 21 and 22 extending vertically, and an upper beam 23 and a lower beam 24 extending left and right. Each of these crosspieces 21 to 24 has a rectangular cross-sectional shape. Of the vertical beams 21 and 22, the vertical beam 21 is arranged on the opening side in the opening/closing direction of the sash door 15, and the vertical beam 22 is arranged on the closing side. In the closed state in which the sash doors 15a and 15b are closed, the vertical beams 21 of the sash doors 15a and 15b are arranged so as to overlap in the indoor/outdoor direction (in other words, the thickness direction of the sash door 15). Note that the vertical beam 21 is also called a meeting frame. Moreover, the glass plate 17 is a multi-layered glass, and security is enhanced.

Each sash door 15a, 15b is provided with a crescent lock 30 for locking both sash doors 15a, 15b in the closed state. The crescent lock 30 will be described below with reference to FIGS. 2 to 4. FIG. FIG. 2 is a perspective view showing the crescent lock 30, and FIG. 3 is a front view. 4A is a cross-sectional view taken along line AA of FIG. 3, and FIG. 4B is a cross-sectional view showing how the sash door 15 is forced open from the state of FIG. 4A. 2 to 4 all show a locked state in which the crescent lock 30 is locked.

As shown in FIGS. 2, 3 and 4(a), the crescent lock 30 is attached to a crescent 31 attached to the indoor sash door 15a through a base 33 and to the outdoor sash door 15b. and a crescent receiver 32 . The base 33 is fixed to the vertical beam 21 of the sash door 15a, and the crescent 31 is rotatably attached to the base 33 via a rotating shaft 35. As shown in FIG. The rotating shaft 35 is a shaft extending in the opening/closing direction of the sash door 15a, and the crescent 31 is vertically rotatable around the rotating shaft 35. As shown in FIG.

The crescent 31 has a handle 36 for rotating and an engaging claw 37 that engages with the crescent receiver 32 . The handle 36 extends linearly and has a rectangular cross section. The handle 36 is rotatable between a locked position (see FIGS. 2 and 3) in which it projects upward and an unlocked position in which it projects downward.

The crescent receiver 32 is fixed to the vertical beam 21 of the sash door 15b and has an engaged portion 38 with which an engaging claw 37 is engaged. When the handle 36 of the crescent 31 is rotated to the locked position, the engaging claw 37 of the crescent 31 is engaged with the engaged portion 38 of the crescent receiver 32 . Thereby, the crescent lock 30 is locked. On the other hand, when the handle 36 of the crescent 31 is rotated to the unlocked position, the engagement of the engaging claw 37 with the engaged portion 38 is released. Thereby, the crescent lock 30 is brought into the unlocked state.

A slide button 39 is provided on the base 33 of the crescent lock 30 . The slide button 39 is used to lock or unlock the locked state of the crescent lock 30 when it is in the locked state.

Here, the main building 10 is provided with a security system to prevent illegal entry through the windows 12 . The configuration of the security system will be described below. In addition, in this building 10, a security system was introduced after the renovation of the building 10. FIG.

As shown in FIGS. 2, 3 and 4(a), the security system includes a first sensor 41 used to detect the locked/unlocked state of the crescent lock 30 and the open/closed state of the sash doors 15a and 15b. and a second sensor 42 used for detection.

The first sensor 41 has a first detected portion 41a as a detection target and a first detection portion 41b that detects the first detected portion 41a. In this embodiment, the first sensor 41 is a proximity sensor that can detect a detection target in a non-contact manner. Specifically, the first sensor 41 is a magnetic proximity sensor, the first detected portion 41a is made of a magnet, and the reed switch turns ON (detects) when the first detection portion 41b approaches the magnet. consists of

The first detection part 41a is attached to the handle 36 of the crescent 31 with an adhesive or the like, and the first detection part 41b is attached to the vertical beam 21 (hereinafter referred to as the vertical beam 21a) of the sash door 15a on the indoor side with an adhesive or the like. It is Specifically, when the handle 36 of the crescent 31 is in the locked position, that is, when the crescent lock 30 is in the locked state, the handle 36 and the vertical bar 21a are opposed to each other in the opening/closing direction of the sash door 15a. Specifically, in this case, a side surface 36b of the handle 36 on the side of the vertical bar 21a and a side surface 46 of the vertical bar 21a on the open side (side of the handle 36) face each other in the opening and closing direction. A first detected portion 41a is attached to the side surface 36b of the handle 36, and a first detection portion 41b is attached to the side surface 46 of the vertical beam 21a.

Note that the side surface 36b of the handle 36 and the side surface 46 of the vertical bar 21a correspond to "opposing surfaces" that face each other. Further, the side surface 36b of the handle 36 corresponds to the "outer surface of the handle", and the side surface 46 of the vertical bar 21a corresponds to the "outer surface of the inner opening/closing body".

The first detected portion 41a and the first detected portion 41b are positioned between the handle 36 and the vertical beam 21a when the handle 36 of the crescent 31 is in the locking position, and are positioned relative to each other in the opening/closing direction of the sash door 15a. They are arranged facing each other. Then, in the first sensor 41, when the first detected portion 41a and the first detected portion 41b are in such a positional relationship (corresponding to a predetermined positional relationship) in which the first detected portion 41a and the first detected portion 41b are arranged to face each other, the first detected portion 41a is detected by the first detector 41b. Therefore, in the first sensor 41, when the handle 36 of the crescent 31 is in the locked position, that is, when the crescent lock 30 is in the locked state, the first detected portion 41a is detected by the first detecting portion 41b. Specifically, the first detected portion 41a is detected by the first detecting portion 41b only when the handle 36 is in the locked position.

Like the first sensor 41, the second sensor 42 has a second detected portion 42a as a detection target and a second detection portion 42b that detects the second detected portion 42a. In this embodiment, the same magnetic proximity sensor as the first sensor 41 is used as the second sensor 42, the second detected part 42a is made of a magnet, and the second detection part 42b is made of a reed switch.

The second detection part 42a is attached to the handle 36 of the crescent 31 with an adhesive or the like, and the second detection part 42b is attached to the glass plate 17 (hereinafter referred to as the glass plate 17b) of the sash door 15b on the outdoor side with an adhesive or the like. It is When the handle 36 of the crescent 31 is in the locked position with the sash doors 15a and 15b closed, that is, the crescent lock 30 is locked. In the locked state, the handle 36 and the glass plate 17b face each other in the indoor-outdoor direction. Specifically, in this case, the outdoor-side side surface 36a of the handle 36 and the indoor surface 44 of the glass plate 17b face each other in the indoor-outdoor direction. A second detection part 42a is attached to the side surface 36a of the handle 36, and a second detection part 42b is attached to the indoor surface 44 of the glass plate 17b. In this case, the second detected portion 42a is attached to the proximal end portion of the handle 36 in the longitudinal direction.

Note that the side surface 36a of the handle 36 and the indoor surface 44 of the glass plate 17b correspond to "opposing surfaces" that face each other. Further, the side surface 36a of the handle 36 corresponds to the "outer surface of the handle", and the indoor surface 44 of the glass plate 17b corresponds to the "outer surface of the outer opening/closing body".

When the handle 36 of the crescent 31 is in the locked position with the sash doors 15a and 15b closed, the second detected portion 42a and the second detected portion 42b are positioned between the handle 36 and the glass plate 17b, respectively. positioned opposite each other in the indoor-outdoor direction. Then, in the second sensor 42, when the second detected portion 42a and the second detected portion 42b are in such a positional relationship (corresponding to a predetermined positional relationship) in which the second detected portion 42a and the second detected portion 42b are arranged to face each other, the second detected portion 42a is detected by the second detector 42b. Therefore, the second sensor 42 detects when the sash doors 15a and 15b are closed and the handle 36 is in the locked position, that is, when the sash doors 15a and 15b are closed and the crescent lock 30 is locked. In some cases, the second detected portion 42a is detected by the second detecting portion 42b, specifically only when the sash doors 15a and 15b are closed and the handle 36 is in the locked position. The second detected portion 42a is detected by the second detecting portion 42b.

Next, the electrical configuration of the security system will be described with reference to FIG. FIG. 5 is a diagram showing the electrical configuration of the security system.

As shown in FIG. 5, the building 10 is provided with a monitor device 51 . The monitor device 51 is attached to a wall inside the building 10, for example. The monitor device 51 has a control section 52 as control means, a communication section 53 and a notification section 54 . The control unit 52 includes a well-known microcomputer having a CPU, etc., and is connected to the communication unit 53 and the notification unit 54, respectively. The communication unit 53 is capable of wireless communication with a mobile device 56 carried by a resident living in the building 10 and each detection unit 41b, 42b. The notification unit 54 notifies the residents by outputting sound, and is composed of a speaker, for example.

The first detection section 41b and the second detection section 42b have a communication function of transmitting detection signals to the monitor device 51 by radio. When the first detected portion 41a is detected by the first detection portion 41b, the first detection portion 41b transmits a detection signal indicating the detection to the monitor device 51. As shown in FIG. Similarly, when the second detected portion 42a is detected by the second detection portion 42b, the second detection portion 42b transmits a detection signal indicating the detection to the monitor device 51. FIG. In the monitor device 51 , the control section 52 receives the detection signals transmitted from the first detection section 41 b and the second detection section 42 b through the communication section 53 . The control unit 52 performs notification processing for notifying the notification unit 54 and the portable device 56 of the resident based on the detection signals from the detection units 41b and 42b.

Next, crime prevention processing executed by the control unit 52 of the monitor device 51 will be described based on the flowchart shown in FIG. Note that this process is repeatedly executed at a predetermined cycle.

As shown in FIG. 6, first, in step S11, it is determined whether or not the first detected portion 41a is detected by the first detecting portion 41b based on whether or not a detection signal has been received from the first detecting portion 41b. do. That is, here, it is determined whether or not the crescent lock 30 is locked. If the first detection unit 41b has not detected, that is, if the crescent lock 30 is in the unlocked state, the process proceeds to step S17 to reset the normal lock flag, which will be described later. After that, this process is terminated. On the other hand, if the first detection unit 41b has detected, that is, if the crescent lock 30 is in the locked state, the process proceeds to step S12.

In step S12, it is determined whether or not the second detected portion 42a is detected by the second detecting portion 42b based on whether or not a detection signal has been received from the second detecting portion 42b. That is, here, it is determined whether or not each of the sash doors 15a and 15b is in the closed state when the crescent lock 30 is in the locked state. When the detection by the second detection unit 42b is performed, that is, when the sash doors 15a and 15b are in the closed state in the locked state of the crescent lock 30 (see FIG. 4(a)), the normal locked state is assumed. Proceeding to step S13, the normal locking flag is set. After that, this process is terminated. On the other hand, if the detection by the second detection section 42b is not performed, that is, if the sash doors 15a and 15b are open with the crescent lock 30 locked, the process proceeds to step S14.

In step S14, it is determined whether or not the normal lock flag is set. When the normal locking flag is set, the state in which the first detection unit 41b is detected and the second detection unit 42b is also detected (that is, the normal locked state shown in FIG. 4A), the second It can be determined that the state has shifted to the state (the state shown in FIG. 4B) in which the detection by the first detection unit 41b is performed and the detection by the second detection unit 42b is not performed. That is, in this case, it can be determined that the sash doors 15a and 15b have been opened while the crescent lock 30 remains locked. For example, it is assumed that the sash doors 15a and 15b are forcibly opened from the outside by a suspicious person. In this case, the process proceeds to step S15. In the example of FIG. 4(b), the sash door 15b on the outdoor side is forcibly opened while the crescent lock 30 remains locked, and as a result, the engaging claw 37 of the crescent receiver 32 is broken and the engaging claw 37 is broken. The engagement of the crescent 31 with respect to is released.

In step S15, notification processing is performed to notify that the sash doors 15a and 15b have been opened. In the notification process, the notification signal is output to the notification unit 54 and the notification signal is transmitted from the communication unit 53 to the portable device 56 of the resident. As a result, the notification unit 54 notifies the opening of the sash doors 15a and 15b by voice, so that the residents in the building 10 can quickly take measures such as contacting the police. In addition, since a message to the effect that the sash doors 15a and 15b have been opened is displayed on the portable device 56 by e-mail, it is possible to respond quickly even when the resident is out. After performing the notification process, this process ends. Note that the mobile device 56 corresponds to the external device.

If the normal lock flag is not set in step S14, it can be determined that the crescent lock 30 is locked with the sash doors 15a and 15b open. That is, in this case, it can be determined that the crescent lock 30 is in a so-called empty lock state. In this case, the process proceeds to step S16, and the notifying unit 54 notifies that the lock is unlocked. After that, this process is terminated.

According to the configuration of the present embodiment described in detail above, the following excellent effects are obtained.

Since the first detected portion 41a is attached to the side surface 36b of the handle 36 of the crescent 31 and the first detected portion 41b is attached to the side surface 46 of the vertical beam 21a of the sash door 15a, the first detected portion 41b and the first detected portion 41a can be attached to existing crescent 31 and sash door 15a. In addition, since the second detected portion 42a is attached to the side surface 36a of the handle 36 of the crescent 31, and the second detection portion 42b is attached to the indoor surface 44 of the glass plate 17b of the sash door 15b, the second detection portion 42b and the second detection portion 42b are attached. The detected part 42a can be attached to the existing crescent 31 and the sash door 15b, respectively.

Further, since the first detected portion 41a is attached to the handle 36 of the crescent 31, when the first detected portion 41a is attached to the handle 36 or the first detected portion 41b is attached to the sash door 15a, these The mounting work can be performed after the handle 36 is moved to a position where mounting is easy. Similarly, since the second detected portion 42a is attached to the handle 36, when attaching the second detected portion 42a to the handle 36 or attaching the second detection portion 42b to the sash door 15b, it is possible to attach the second detected portion 42a to the handle 36. The mounting work can be performed after the handle 36 is moved to an easy position. Therefore, in this case, it can be retrofitted to the existing building 10 relatively easily.

When the handle 36 is in the locking position, the handle 36 and the sash door 15a are opposed to each other in the opening/closing direction of the sash door 15a, and the opposing surfaces of the two opposing surfaces 15a and 36, that is, the side surface 36b of the handle 36 and the sash door. Of the side surfaces 46 of the sash door 15a, the first detected portion 41a is attached to the side surface 36b of the handle 36, and the first detection portion 41b is attached to the side surface 46 of the sash door 15a. Accordingly, when the handle 36 is in the locked position, the first detection portion 41b and the first detected portion 41a are arranged between the handle 36 and the sash door 15a, respectively. It is possible to make the detected portion 41a inconspicuous.

When the handle 36 is in the locked position, the handle 36 and the sash door 15b face each other in the indoor-outdoor direction, and the opposing surfaces of the two opposing sides 15b and 36, that is, the side surface 36a of the handle 36 and the indoor surface of the sash door 15a. 44, the second detection part 42a is attached to the side surface 36a of the handle 36, and the second detection part 42b is attached to the indoor surface 44 of the sash door 15a. As a result, when the handle 36 is in the locked position, the second detection portion 42b and the second detected portion 42a are arranged behind the handle 36 when viewed from the indoor side, making them less noticeable. be able to.

Incidentally, if an earthquake occurs while the crescent lock 30 is locked, it is assumed that the sash door 15 will vibrate and break the crescent lock 30, in which case the sash door 15 may open unintentionally. There is In particular, the sash door 15 is a large-sized sash door for a sweep-out window, and the double-layered glass is used as the glass plate 17, so the weight of the sash door 15 is increased. Therefore, it is considered that such a situation is likely to occur. In this regard, according to the crime prevention processing by the control unit 52, even if the sash door 15 is opened due to an earthquake, the fact that the sash door 15 has opened is notified to the portable device 56 of the resident. can take appropriate action.

The present invention is not limited to the above embodiments, and may be implemented as follows, for example.

(1) In the above embodiment, the first detected portion 41a of the first sensor 41 is attached to the handle 36 of the crescent 31, and the first detection portion 41b is attached to the sash door 15a. , and the first detected portion 41a may be attached to the sash door 15a. Similarly, the second sensor 42 may be mounted in the opposite manner to the above-described embodiment by mounting the second detecting portion 42b on the handle 36 and mounting the second detected portion 42a on the sash door 15b. good.

(2) In the above embodiment, the first detected portion 41a is attached to the side surface 36b of the handle 36 on the side of the vertical beam 21a. It may be attached to the outdoor side surface 36a or the indoor side surface of the handle 36 in some cases. Also in this case, the first detected portion 41a and the first detected portion 41b are arranged in a predetermined positional relationship such that the first detected portion 41a is detected by the first detected portion 41b when the handle 36 is in the locked position. All you have to do is place them.

(3) In the above embodiment, the second detected portion 42a is attached to the side surface 36a of the handle 36 on the outdoor side. 36b or the side surface opposite to the vertical beam 21a. In this case as well, the second detected portion 42a and the second detected portion 42b are arranged in a predetermined positional relationship such that the second detected portion 42a is detected by the second detected portion 42b when the handle 36 is in the locked position. All you have to do is place them.

(4) A third detected portion that is commonly detected by both the first detection portion 41 b and the second detection portion 42 b may be attached to the handle 36 of the crescent 31 . A specific example in that case is shown in FIG. In the example shown in FIG. 7 , the third detectable portion 61 is attached to the handle 36 of the crescent 31 . The third detected portion 61 is made of a magnet and attached to the tip surface of the handle 36 (corresponding to the outer surface of the handle) with an adhesive or the like. That is, the third detected portion 61 is attached to the upper end surface of the handle 36 when the handle 36 is in the locked position.

The first detecting portion 41b is attached to the side surface 46 of the vertical beam 21a of the sash door 15a, and when the handle 36 is in the locking position, the first detecting portion 41b and the third detected portion 61 are connected to the sash door 15a. They are arranged facing each other in the opening/closing direction. When both 41b and 61 are in such a positional relationship (corresponding to a predetermined positional relationship) in which they are arranged to face each other, the third detected portion 61 is detected by the first detecting portion 41b.

The second detector 42b is attached to the indoor surface 44 of the glass plate 17b of the sash door 15b. When the handle 36 is in the locked position with the sash doors 15a and 15b closed, the second detection portion 42b and the third detected portion 61 are arranged to face each other in the indoor-outdoor direction. Then, when both 42b and 61 are in a positional relationship (corresponding to a predetermined positional relationship) in which both 42b and 61 are arranged to face each other, the third detected portion 61 is detected by the second detecting portion 42b.

In the above configuration, only one detected portion (that is, the third detected portion 61) needs to be attached to the handle 36, so retrofitting of the security system can be facilitated.

(5) As the first sensor 41 and the second sensor 42, it is not always necessary to use a magnetic proximity sensor. For example, an inductive proximity sensor or a capacitive proximity sensor may be used. In short, any sensor can be used as the first sensor 41 and the second sensor 42 as long as it has a detected part as a detection target and a detection part for detecting the detected part. In addition to the proximity sensor, it is also possible to use a contact sensor such as a limit switch that detects the contact of the object to be detected.

(6) In the above embodiment, the notification process (step S15) was performed as the warning process, but instead of or in addition to the notification process, a threatening process for intimidating a suspicious person may be performed. As the intimidation process, for example, an alarm device such as a buzzer may be provided around the window 12 and an alarm sound may be emitted from the alarm device. In this case, it is possible to prevent a suspicious person from entering the building 10 through the window 12 .

(7) In the above-described embodiment, the resident was notified during the notification process, but instead of or in addition to this, an external organization such as the police may be notified. In that case, it becomes possible to quickly request help from outsiders.

(8) In the above embodiment, the security system of the present invention is applied to the window portion 12 (entrance) through which the building 10 can be entered and exited, that is, the sweep window, but the security system of the present invention is applied to the window portion other than the doorway. You may

DESCRIPTION OF SYMBOLS 10... Building 12... Window part as building opening 15a... Sash door as inner opening-and-closing body 15b... Sash door as outer-side opening and closing body 30... Crescent lock 31... Crescent 32... Crescent receiver 36... Handle 36a, 36b Side surface as outer surface 37 Engagement claw 41a First detected part 41b First detected part 42a Second detected part 42b Second detected part 44 Outer surface 46 .

Claims (5)

A pair of opening and closing bodies that open and close the building opening and are provided in a sliding manner,
a crescent lock that locks each of the opening and closing bodies in a closed state;
The crescent lock has a crescent rotatably attached to the inner opening/closing body on the indoor side of the opening/closing bodies, and a crescent receiver attached to the outer opening/closing body on the outdoor side of the opening/closing bodies. and
The crescent has a handle for rotating operation, and when the handle is rotated to a locking position, it is engaged with the crescent receiver, and the engagement locks the crescent lock. is,
A first detected part is attached to one of the outer surface of the handle and the outer surface of the inner opening/closing body, and a first detection part is attached to the other to detect the first detected part,
The first detection section and the first detection section are arranged in a predetermined positional relationship such that the first detection section is detected by the first detection section when the handle is positioned at the locking position,
A second detected part is attached to one of the outer surface of the handle and the outer surface of the outer opening/closing body, and a second detection part is attached to the other to detect the second detected part,
The second detecting portion and the second detected portion are configured such that the second detecting portion is detected by the second detecting portion when the handle is positioned at the locking position in the closed state of each of the opening/closing bodies. are arranged in a predetermined positional relationship,
From a state in which the first detectable portion is detected by the first detecting portion and the second detectable portion is detected by the second detecting portion, the first detectable portion is detected by the first detecting portion. and a control means for executing a predetermined warning process when the second detection part is not detected by the second detection part. When the handle is at the locking position, the handle and the inner opening/closing body are opposed to each other in the opening/closing direction of the inner opening/closing body. 2. The security system according to claim 1, wherein the first detectable portion is attached to the other. When the handle is in the locked position, the handle and the outer opening/closing body face each other in the indoor/outdoor direction, and the second detection unit is attached to one of the opposing surfaces of the two opposing surfaces, 3. The security system according to claim 1, wherein the second detected part is attached to the other side. The first detection unit is attached to the outer surface of the inner opening/closing body,
The second detection unit is attached to the outer surface of the outer opening/closing body,
A common third detected portion corresponding to each of the first detected portion and the second detected portion and detected by both the first detected portion and the second detected portion is provided on the outer surface of the handle. is attached and
The first detection section, the second detection section, and the third detection section are configured so that the third detection section is positioned between the first detection section and the second detection section when the handle is positioned at the locking position. 2. The security system according to claim 1, wherein the security system is arranged in a predetermined positional relationship detected by each. 5. The security system according to any one of claims 1 to 4, wherein, as the alarm processing, the control means performs notification processing for notifying an external device that the opening/closing member has been opened.

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