JP3458274B2 - Home security equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a house crime prevention device,
In particular, the present invention relates to an improvement of a house crime prevention device that activates an alarm means when a door opening / closing operation is detected and notifies a housekeeper of the door opening / closing.

[0002]

2. Description of the Related Art A crime prevention device for a house which detects an opening / closing operation of a door and activates an alarm means is already known. In a simple one, a bell or a bell is attached to the door to notify vibration or swinging operation of the door. As an electric thing, a thing which operates a buzzer by detecting an opening / closing operation of a door by a proximity switch or a limit switch attached to an entrance / exit is known.

[0003]

However, the conventional house crime prevention device merely detects the fact that the door is opened and closed and informs the family member of the house. It was not possible to determine whether it was an outside person or a family member who opened and closed the door.

On the other hand, an alarm means for detecting an illegal opening / closing operation of the door is provided, and the door locking tool is unlocked before the switch of the alarm means is released by a code input from a dedicated key or a card or a numeric keypad. It is also known that if you open or close the door, the alarm means will be sounded as if an unauthorized intrusion from the outside has occurred and the nearest security company will be notified of the occurrence of an abnormality. .

However, in the case of this kind of alarm equipment,
The equipment itself becomes very large-scale, and the operation for releasing the switch of the alarm means, for example, the operation of releasing the alarm means by inserting a special key or card and the numeric keypad, etc. Is often not suitable.

[0006]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned drawbacks of the prior art, to facilitate the operation for releasing the alarm means switch, and to be suitable for general households with a lot of access and to open and close the door. An object of the present invention is to provide a house crime prevention device that can easily determine whether an operation is performed by an external person or a family member.

[0007]

SUMMARY OF THE INVENTION The present invention is an opening / closing operation detecting means which is provided at an entrance / exit of a house having a door having a locking tool and which detects an opening / closing operation of the door and outputs an opening / closing detection signal.
A crime prevention device for a house, comprising: an alarm means that operates based on an opening / closing detection signal from the opening / closing operation detection means. To achieve the above object, the alarm means can be activated based on a switching control radio signal. A configuration is provided in which alarm operation limiting means for switching between a locked state and an inoperable state is provided, and a wireless signal transmitting means for outputting a switching control wireless signal is integrally provided on the key of the locking tool. Have.

According to such a construction, by operating the alarm operation limiting means via the wireless signal transmitting means provided integrally with the key of the locking tool, a person who holds the key of the locking tool, that is, Only the family member can easily switch the alarm means between the operable state and the inoperable state. Usually, the person with the key of the locking tool, that is, the family member,
Since the alarm means is switched from the operable state to the inoperable state and then the door locking tool is released to open and close the door, the alarm means will not operate even if the housekeeper unlocks the door and opens and closes the door. Absent. On the other hand, a person who does not have the key of the locking tool, that is, an outside person does not have a means for switching the alarm means to the inoperable state, so that when the outside person opens and closes the door, the alarm means must be activated. It will work. Therefore, based on the activation / non-activation of the alarm means, it is possible to reliably determine whether the door opening / closing operation is performed by an external person or a family member. Moreover, the person holding the key of the locking tool
Since only one key can be used to easily lock / unlock the door and switch the alarm device on / off, it is not necessary to have a key or card dedicated to the alarm device, which is a hassle with the numeric keypad. Since there is no need to perform a code input operation, even if the user frequently goes in and out of the house, the troublesome operation is not bothered.

Further, a construction in which the opening / closing operation detecting means, the alarm means, and the alarm operation limiting means are integrated and arranged on the door may be applied.

By placing these constituent elements together on the door, it is not necessary to process the door frame, and
Since only one place for processing the door itself is required, it is possible to reduce the overall manufacturing cost of the door and the crime prevention device. Of course, the opening / closing operation detecting means, the alarm means, and the alarm operation limiting means are divided and provided at a plurality of locations on the door, or some of these components are provided on the door and the rest are provided on the door. It is also possible to deploy in a frame or the like.

Further, the opening / closing operation detecting means and the alarm operation limiting means are integrally provided on the door, while the alarm means is activated by receiving the opening / closing detection signal formed by the wireless signal output from the opening / closing operation detecting means. It is also possible to adopt a configuration in which the alarm means is installed inside the house.
In this case, the alarm operation limiting means operates the alarm means by switching between a state in which the output of the opening / closing detection signal of the opening / closing operation detecting means is permitted and a state in which it is prohibited based on the switching control wireless signal from the wireless signal transmitting means. It is configured to switch between the ready state and the inoperable state.

By applying such a configuration, the alarm means can be installed in the house away from the entrance and exit, and the opening and closing operation of the entrance and exit can be watched in the room where the resident resides. Since the alarm operation limiting means is provided on the door side together with the opening / closing operation detecting means, it is possible to reliably receive the switching control wireless signal output from the wireless signal transmitting means operated by the resident outside the door.

Further, in the case where the alarm means which operates in response to the opening / closing detection signal composed of the radio signal output from the opening / closing operation detecting means is provided, further, a crime prevention crescent attached to the window frame provided in the house is further provided. The alarm means may be activated by an open / close detection signal.

In this case, since the opening / closing operation of the door of the doorway and the opening / closing operation of the window frame can be watched by a single alarm means, even when a plurality of security equipments are installed on the door or window frame of the doorway. The overall construction cost required for the home security device can be reduced.

Here, when a conductive door frame is provided at the entrance / exit, the main part of the opening / closing operation detecting means can be constituted by the proximity switch provided at the swing end of the door.

The proximity switch provided at the swinging end of the door is
When the door is closed, the object to be detected is detected by approaching the conductive door frame, and when the door is rocked and opened, the proximity switch moves away from the door frame to detect the object to be detected. It will not be detected. Therefore, in the case of such a configuration, the open / close detection signal is output in response to the switching of the proximity switch from ON to OFF. Of course, it is possible to configure the opening / closing operation detection means with a sensor such as a photocoupler, but by using a proximity switch for the conductive door frame, processing for mounting the sensor on the door frame side etc. Has the advantage that it is not necessary at all. In the case of a sliding door type door, a proximity switch may be provided at the end of the door that comes into contact with the door frame when the door is closed.

Further, regardless of the material of the door frame, the limit switch provided at the hinge position of the door can constitute the main part of the opening / closing operation detecting means.

The limit switch arranged at the hinge position of the door is in a state where the actuator is pressed by the door frame when the door is closed and the object to be detected is detected, and when the door is rocked and opened, The actuator of the limit switch is separated from the door frame and opened, so that the object to be detected is not detected. Therefore, in the case of such a configuration, the opening / closing detection signal is output in response to the opening of the actuator of the limit switch. Similar to the above, processing on the side of the door frame is not necessary at all, and since the limit switch is superposed on the hinge position of the door, in the case of the outside opening type door where the hinge is located outside, Has the merit that the location of the opening / closing operation detection means is unknown.
In the case of a sliding door type door, a limit switch may be provided at the end of the door that contacts the door frame when the door is closed.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of a house crime prevention device to which the present invention is applied will be described in detail below with reference to the drawings.

FIG. 1 is a front view showing the outer appearance of the house 39 with the house crime prevention device 38 according to the first embodiment of the present invention mounted on a door 41 of an entrance 40 of a house 39. .

The door 41 has a doorway 4 as shown in FIG.
An open door that is openably and closably attached to a door frame 42 fixed to 0 through a hinge 43, and a locking tool 44 for fixing the door 41 to the door frame 42 for locking. Door 4
And a handle 45 used for the opening / closing operation of No. 1.

In this case, the material of the door frame 42 is a conductive metal material such as an aluminum sash.

Next, the structure of the house crime prevention device 38 is shown in FIG. FIG. 2A is a diagram showing the shape of the cutout portion 46 provided at the swing end on the back side of the door 41 for mounting the house security device 38, and FIG. 2B is the house security device 3
8 is a view showing a simplified internal structure of FIG. 8, FIG. 2C is a view showing the house crime prevention device 38 from the back side, and FIG. 2D is a state in which the house crime prevention device 38 is attached to the door 41. It is the figure which showed the principal part of the door 41 from the back surface side.

The main part of the house crime prevention device 38 is shown in FIG.
As shown in (b), a proximity switch 47 as an opening / closing operation detection unit that detects an opening / closing operation of the door 41 and outputs an opening / closing detection signal, and an alarm unit that operates based on the opening / closing detection signal from the proximity switch 47. Buzzer 48, a control circuit 49 as alarm operation limiting means for switching the buzzer 48 between an operable state and an inoperable state, and a power source 50 including a battery case in which a dry battery or the like is mounted and an original switch 51. These members are integrally mounted on the mounting plate 52.

At the four corners of the mounting plate 52, screw through holes 53 for fixing the mounting plate 52 to the notches 46 of the door 41 are bored. On the back surface side of the mounting plate 52, as shown in FIG.
An opening 66 for operating 1 and an opening / closing lid 54 for battery replacement are provided, and a large number of through holes 55 are formed at positions where they overlap the buzzer 48.

The house crime prevention device 38 is attached to the notches 46 on the back side of the door 41 as shown in FIG. 2D, and the fixing screws inserted into the screw through holes 53 at the four corners of the attachment plate 52. 56 to the door 4 as shown in FIG.
It is integrally fixed to the door 41 by being screwed into the female screw 57 of No. 1. Then, in this state, the proximity switch 4
7 to the conductive door frame 42 as shown in FIG.
Face close to.

In this way, the proximity switch 47 and the buzzer 4
Since all of 8, the control circuit 49, the power supply 50, and the original switch 51 are integrally mounted on the mounting plate 52 and attached to the door 41, only the notch 46 is required for processing the door 41. This is advantageous in that the processing is simplified and the manufacturing cost is reduced. At this time, no processing is required for the door frame 42.

The proximity switch referred to here is, for example, an eddy current displacement sensor or the like, and is a switch that detects the size of the distance from the conductor and outputs a signal.
Circuits such as an inverter for generating an alternating current, a comparator for comparing the magnitude of detection signals from an eddy current displacement sensor, etc. and outputting an ON / OFF signal, or an inverting circuit for inverting the output signal. Although it may be required as a part of the proximity switch 47, since these components are already well known, these auxiliary circuits are regarded as a part of the function of the proximity switch 47 here, and the proximity switch 4 is simply included.
An OFF signal is output when 7 is close to the conductor, and is ON when proximity switch 47 is separated from the conductor.
It is specified that a signal is output.

Proximity switch 4 as opening / closing operation detecting means
7, a buzzer 48 as an alarm means, a control circuit 49 as an alarm operation limiting means, a power source 50, and an original switch 5
The electrical connection relationship of No. 1 is shown in FIG.

Of these, the control circuit 49 as an alarm operation limiting means receives a switching control radio signal output from the key 58 as shown in FIG. 4A and outputs a switching command. And a switching circuit 6 that cyclically switches the ON / OFF switch 60 from the ON state to the OFF state or from the OFF state to the ON state based on the switching command output from the receiving circuit 59 and holds the state.
1 and an ON / OFF switch 60 controlled by the switching circuit 61.

The ON / OFF switch 62 is ON / OFF controlled in conjunction with a signal from the proximity switch 47.

FIG. 4B is a functional block diagram showing the outline of the configuration of the key 58 of the locking tool 44. The key 58 includes a power source 63 configured by a button battery or the like, a transmission circuit 64 that outputs a switching control radio signal, and an operation switch 65 for ON / OFF controlling the transmission circuit 64, and an operation switch 65. When is pressed, the switching control wireless signal is output from the transmitting circuit 64 as the wireless signal transmitting means. The structure of the key 58 is substantially the same as that used in a keyless entry system for automobiles and the like, and therefore detailed description thereof is omitted here.

As shown in FIG. 3, the house crime prevention device 38
Each of the source switch 51 and the ON / OFF switches 60 and 62 are connected in series between the power source 50 and the buzzer 48. Of these, the original switch 51 is always closed except for power saving, and the ON / OFF switch 60 is also closed in advance by the operation of the operation switch 65 of the key 58.

FIG. 3 shows a state in which the opening / closing operation of the door 41 is watched while the door 41 is fixed to the door frame 42 by the locking tool 44. At this time, the proximity switch 47 provided at the swinging end of the door 41 is in a state of closely facing and facing the door frame 42 as shown in FIG. Signal output is OF
Since it becomes F and the ON / OFF switch 62 is opened, the buzzer 48 as an alarm means does not operate.

When a family member who has returned home from the outside enters the house, first, the operation switch 65 provided on the key 58 of the locking tool 44 is operated to generate the transmission circuit 6 as a radio signal transmission means.
4 is operated to output the switching control radio signal.

Then, the receiving circuit 59 which has received the switching control radio signal outputs a switching command to the switching circuit 61 which constitutes the main part of the alarm operation limiting means, and the switching circuit 61 which receives this switching command is turned on. The / OFF switch 60 is opened and kept in the OFF state as it is.

After that, the family member who came home from the outside inserts the key 58 into the lock tool 44 to unlock the lock tool 44, and opens the door 41 with the handle 45. At this time, the door 4
The proximity switch 47 as the opening / closing operation detecting means provided on the first unit is separated from the door frame 42 in accordance with the swing motion of the door 41, and the output signal from the proximity switch 47 is turned on from OFF.
The state switches to. Therefore, the ON / OFF switch 62 is closed by this open / close detection signal, but at this stage the ON / OFF switch 60 has already been opened and the buzzer 48 is in an inoperable state. It will not be output.

A person who enters the house closes the door 41 and locks the locking tool 44 again from the inside, and if necessary, operates the operation switch 65 of the key 58 again to operate the switching circuit 61 to turn it on. Close the / OFF switch 60,
The buzzer 48, which is an alarm means, is returned to the operable state.

As described above, the function of the alarm buzzer 48 can be stopped by a simple operation of one-touch operation of the operation switch 65 integrally incorporated in the key 58 of the locking tool 44. Unlike the alarm equipment of No., there is no need to take out a special key or card different from the key of the locking tool every time you go home or go out and perform troublesome alarm release operation, code input etc. from the numeric keypad ,
It is advantageous in terms of operability.

On the other hand, when an intruder other than the housekeeper who does not have the key 58 for releasing the alarm opens the door 41, the O
Since it is not possible to leave the buzzer 48 inoperable by opening the N / OFF switch 60, no matter how ingeniously the lock of the locking tool 44 is unlocked,
The buzzer 48 always operates at the moment when the door 41 is opened.

Therefore, it is extremely easy for a home resident to judge whether the person who opened and closed the door 41 is a home or an outside person.

In the case of this embodiment, the proximity switch 47 as the opening / closing operation detecting means is turned ON / OFF only in association with the opening / closing operation of the door 41 regardless of the locked / unlocked state of the locking tool 44. For example, if the buzzer 48 is operated for a predetermined time after the door 41 is opened and closed by, for example, controlling the closing time of the ON / OFF switch 62 with a timer, the buzzer 48 as an alarm means can be used as a substitute for a bell or the like. It is also possible to use. In such a case, the locking tool 44 does not necessarily need to be locked.

Further, in this embodiment, since the opening / closing operation detecting means is constituted by disposing the proximity switch 47 so as to face the door frame 42 with a predetermined gap therebetween, the door 4
Even if a slight gap is generated between the door frame 1 and the door frame 42, the location of the opening / closing operation detecting means cannot be determined from the outside, and it is known to an outside person carelessly installing the crime prevention device. Don't worry.

FIGS. 5 and 6 show a proximity switch 47 forming a main part of the opening / closing operation detecting means, a transmitting circuit 68 forming a part of the opening / closing operation detecting means, and a control circuit forming a main part of the alarm operation limiting means. A second embodiment in which the door side unit 69 in which 67 is integrally arranged on the mounting plate 52 is mounted on the door 41, while the side of the alarm device 28 serving as an alarm means is installed and used in the house. It is the figure which showed the outline of a structure of the crime prevention apparatus for houses.

The house crime prevention device of the second embodiment is constituted by the door side unit 69 shown in FIG. 5 and the alarm device 28 shown in FIG.

The alarm device 28 has a function of operating the alarm speaker 32 in response to an opening / closing detection signal formed of a radio signal output from the transmitting circuit 68 forming a part of the opening / closing operation detecting means. In addition, the control circuit 67 determines whether the open / close detection signal output from the transmission circuit 68 is permitted or prohibited based on the switching control radio signal output from the key 58 of the locking tool 44 described above. By switching, the alarm device 28 has a function of switching between an operable state and an inoperable state.

The structure of the door-side unit 69 is shown in FIGS. 5 (a) and 5 (b). Of these, the structures of the proximity switch 47, the power source 50, the original switch 51, the mounting plate 52, the screw through hole 53, and the opening / closing lid 54 are the same as those in the above-described first embodiment, and therefore, redundant description will be omitted.

As shown in FIG. 2A, the mounting plate 52 is fitted into the notch 46 provided in the door 41, and the mounting plate 52 is mounted inside the door 41 with the fixing screw 56. This is similar to the case of the first embodiment described above.

However, the insulating member 70 is attached to the mounting plate 52.
Is attached, the door 41 and the attachment plate 52 are electrically insulated, and the fixing screw 56 is made of synthetic resin. This is a measure to prevent the mounting plate 52 from connecting to the door 41 and increasing the impedance of the transmitting antenna when the mounting plate 52 is connected to the transmitting circuit 68 and used as the transmitting antenna. Is. Therefore, when the door 41 is made of wood or the like, the insulating member 70 and the fixing screw 56 made of synthetic resin are not necessarily required.

The proximity switch 47 which constitutes the main part of the opening / closing operation detecting means, the transmitting circuit 68 which constitutes a part of the opening / closing operation detecting means, and the control circuit 67 and the power source 50 which constitute the main part of the alarm operation limiting means. FIG. 7 shows the electrical connection relationship between the source switch 51 and the source switch 51.

Control circuit 67 as alarm operation limiting means
Is a reception circuit 59 that receives a switching control radio signal output from the key 58 as shown in FIG. 4A and outputs a switching command, and is turned on based on the switching command output from the reception circuit 59. A switching circuit 61 that cyclically switches the ON / OFF switch 60 from the ON state to the OFF state or from the OFF state to the ON state, and the ON / O controlled by the switching circuit 61.
And an FF switch 60.

The ON / OFF switch 62 is ON / OFF controlled in conjunction with the signal from the proximity switch 47.

As shown in FIG. 7, each of the original switch 51 and the ON / OFF switches 60 and 62 of the door side unit 69 is connected in series between the power source 50 and the transmission circuit 68. Of these, the original switch 51 is always closed except for power saving, and the ON / OFF switch 60 is also closed in advance by the operation of the operation switch 65 of the key 58.

FIG. 7 shows a state in which the door 41 is fixed to the door frame 42 by the locking tool 44 and the operation of opening and closing the door 41 is being watched.
As described above, the original switch 51 and the ON / OFF switch 60 are closed and kept in the ON state. At this time, since the proximity switch 47 provided at the swinging end of the door 41 is in a state of being close to and facing the door frame 42, the proximity switch 47
Since the signal output from is OFF and the ON / OFF switch 62 is in an open state, the transmitting circuit 68 which is a part of the opening / closing operation detecting means does not operate.

When a resident returning from the outside enters the house, first, the operating switch 65 provided on the key 58 of the locking tool 44 is operated, and the transmitting circuit 6 as a radio signal transmitting means.
4 is operated to output the switching control radio signal.

Receiving the switching control radio signal, the receiving circuit 59 outputs a switching command to the switching circuit 61, and the switching circuit 61 receiving the switching command opens the ON / OFF switch 60 and maintains the OFF state as it is. To do.

After that, the family member who came home from the outside inserts the key 58 into the lock tool 44 to unlock the lock tool 44, and opens the door 41 with the handle 45. At this time, the door 4
The proximity switch 47, which is the main part of the opening / closing operation detecting means provided on the first unit, is separated from the door frame 42 with the swinging motion of the door 41, and the output signal from the proximity switch 47 is switched from the OFF state to the ON state. . Therefore, the ON / OFF switch 62 is closed, but at this stage
Since the N / OFF switch 60 is opened to prohibit the operation of the transmitting circuit 68, the transmitting circuit 68, which is a part of the opening / closing operation detecting means, does not output the opening / closing detection signal formed of a wireless signal. Therefore, the alarm device 28 does not operate and the alarm is not output.

A person who enters the house closes the door 41 and locks the locking tool 44 again from the inside, and if necessary, operates the operation switch 65 of the key 58 again to operate the main part of the alarm action limiting means. Actuating the switching circuit 61 to configure,
The ON / OFF switch 60 is closed to return to a state in which the output of the opening / closing detection signal from the transmitting circuit 68 which is a part of the opening / closing operation detecting means is permitted.

On the other hand, when an intruder from outside who does not have the key 58 opens the door 41, the ON / OFF switch 6 is previously set.
It is not possible to open 0 to keep the operation of the transmission circuit 68 in a prohibited state, so no matter how ingeniously the unlocking of the locking tool 44 is carried out, the transmission will always occur when the door 41 is opened. The circuit 68 is activated to output an open / close detection signal consisting of a radio signal, and the alarm device 28 which has received this signal
Will output an alarm.

FIG. 8 shows a schematic structure of the alarm device 28 which operates by receiving the open / close detection signal from the transmitting circuit 68.

The alarm device 28 includes a receiving circuit 29 for receiving radio waves from the transmitting circuit 68, a timer circuit 30 that operates for a set time by using the detection of the open / closed detection signal by the receiving circuit 29 as a stimulus, and an alarm speaker 32. And a volume setting switch 34 for adjusting the operating time of the timer circuit 30 and a volume setting switch 34 for adjusting the electric power supplied to the alarm circuit 28. It is attached to the outside.

The reference numeral 35 in FIG. 6 is a code for connecting the alarm device 28 to a household indoor power supply.
Reference numeral 36 is a power switch of the alarm device 28, and reference numeral 3
7 is a pilot lamp.

By using the door-side unit 69 equipped with the transmission circuit 68 for transmitting a radio wave of a frequency different from that used in the adjacent houses, the open / close detection signal (radio signal) between the adjacent houses is transmitted. It is possible to prevent malfunction of the alarm device 28 due to duplication.

As means for identifying the radio signal,
Known methods such as AM / FM modulation and PCM (pulse code modulation) can be used,
This technique is also effective in identifying the correspondence between the key 58 and the receiving circuit 59 described above.

Even when the house crime prevention device composed of the door side unit 69 and the alarm device 28 is used, it is the housekeeper who opens and closes the door 41 as in the case of the first embodiment described above. It is possible to accurately discriminate whether the person is an external person or not, and it is also possible to cancel the alarm operation by the householder because it is not necessary to enter a code from a dedicated key, card or numeric keypad. Can be accommodated.

Further, the alarm device 28 can be installed at any position in the house away from the entrance 40.
There is a merit that it is possible to watch the opening / closing operation of the door 41 in the room where the family members reside.

Further, a control circuit 67 serving as an alarm operation limiting means for receiving a switching control radio signal from the key 58 is provided on the door 41, and the output of the opening / closing detection signal from the transmission circuit 68 serving as the opening / closing operation detecting means is prohibited. Alarm device 28
Since the operation of the alarm is restricted, the alarm operation restricting means (reception circuit 59) is provided with the key 5 as compared with the case where the alarm operation restricting means (reception circuit 59) is installed side by side with the alarm device 28 in the house.
There is a merit that the switching control wireless signal from 8 can be reliably received.

Next, a third embodiment in which a limit switch is used as the opening / closing operation detecting means instead of the proximity switch will be briefly described with reference to FIGS. 9 and 10.

As shown in FIGS. 10 (b) and 10 (c), the structure of the door side unit 71 of the third embodiment is such that a limit switch 72 is used instead of the proximity switch, and a mounting plate. The door side unit 69 of the second embodiment shown in FIGS. 5B and 5C except that the mounting position of the switch with respect to 52 is reversed right and left.
The structure is exactly the same.

In the third embodiment, as shown in FIG. 9, the door side unit 71 is provided on the swing center side of the door 41, and the limit switch 72, which is the main part of the opening / closing operation detecting means, is the door 41. It is arranged so as to overlap with the position of the hinge 43 of the.

As a result, the actuator 73 of the limit switch 72 has the hinge 43 when viewed from the outside of the house 39.
It is practically impossible for an outside person to know the whereabouts of the door-side unit 71 because it is hidden behind and cannot be seen, which is effective in crime prevention measures.

The limit switch 72 is the actuator 7
Since it is configured to operate by detecting the physical pressing operation of No. 3, unlike the case of the proximity switch 47 described above, the merit that it can be used as the opening / closing operation detecting means regardless of the material of the door frame 42. There is.

This limit switch 72 outputs an OFF signal when the actuator 73 is pressed, that is, when the door 41 is closed, and when the pressing of the actuator 73 is released, that is, when the door 41 is opened. ON
It outputs a signal, and therefore the door side unit 71
As the control circuit 67 and the transmission circuit 68, those disclosed in FIGS. 5 and 7 can be applied as they are. Further, as the alarm means forming a pair with the door side unit 71, the alarm device 28 disclosed in FIGS. 6 and 8 can be used as it is.

Regarding the overall action and effect,
This is similar to that of the second embodiment described above.

Next, a fourth example of the construction of a house crime prevention device equipped with an alarm means which operates based on the opening / closing detection signal output from the door side unit and the opening / closing detection signal output from the crime prevention crescent The form will be briefly described.

The house crime prevention device of the fourth embodiment is the door-side unit 69 or the door-side unit 71, the alarm device 28 and the key 58 described in the second embodiment, and FIG.
1 and a crime prevention crescent 1 as an example.

FIG. 11 is a perspective view showing the appearance of the crime prevention crescent 1 used in the fourth embodiment, and FIG.
13 to 15 are a side view and a cross-sectional view showing the internal structure of the crime prevention crescent 1 following the assembly process of the crime prevention crescent 1. Crescent with crime prevention function 1
FIG. 9 shows an example of the mounting position and the like.

As shown in FIG. 11, the crime prevention crescent 1 is roughly composed of a crescent body 2 and a locking piece 3.

Of these, the crescent body 2 is fixedly provided on one of the window frames 4 as shown in FIG. 11, and is engaged with the locking piece 3 fixed to the other window frame 5.
And an operation handle 7 for engaging and disengaging the engaging member 6 with respect to the locking piece 3.

The operating handle 7 is made of a conductive material such as aluminum alloy, and the engaging member 6 formed of a tapered arc-shaped ridge is formed integrally with the operating handle 7, as shown in FIG. ing.

As shown in FIG.
As shown in FIGS. 12 (a) and 12 (b), a shaft 8 made of a conductive material is projected and fixed, and is formed in a thick portion of a central portion of a casing 9 that constitutes a main portion of the crescent body 2. A through-hole 10 is rotatably supported by a stepped sleeve 11 made of an insulating material such as synthetic resin.

The casing 9 is made of a metal material equivalent to that of the operating handle 7 in consideration of mechanical strength, and the casing 9 and the operating handle 7 are securely provided with a stepped sleeve 11 serving as an insulating material. It is insulated.

A disk-shaped rotary cam 12 made of a conductive material is provided at the tip of the shaft 8 as shown in FIGS. 13 (a) and 13 (b).
It is integrally fixed to the shaft 8 in a non-rotatable state. Further, the rotary cam 12 is provided with an arc-shaped elongated hole 13 extending in the circumferential direction, and the rotational position regulating pin 14 is planted in the thick portion of the central portion of the casing 9 and protrudes into the elongated hole 13. The rotation limit of the rotary cam 12 and the operation handle 7 with respect to the casing 9 is regulated by the engagement relationship between the rotary cam 12 and the elongated hole 13.

The operation handle 7 is rotated 180 degrees counterclockwise from the completely closed position shown in FIG. 13 (a) with reference to the directionality in FIG. 13 (a), or from the completely closed position shown in FIG. Rotation is possible in the range of 180 ° clockwise with reference to the directionality in FIG. 11. Since the rotation position regulation pin 14 is formed of an insulating material such as synthetic resin, the rotation cam 1 is interposed via the rotation position regulation pin 14.
2 and the casing 9 are not electrically connected. Further, since the collar portion of the stepped sleeve 11 is interposed between the back surface of the rotary cam 12 and the thick portion of the casing 9, the rotary cam 12
The back surface of the casing does not come into direct contact with the casing 9 to be conducted.

As shown in FIGS. 13 (a) and 13 (b), a pin 15 made of an insulating material such as synthetic resin is integrally fixed to the surface of the rotary cam 12 so as to be inside the casing 9. The other end of the coil spring 17 whose one end is locked to the planted spring locking pin 16 is locked.

The coil spring 17 functions as a fulcrum crossing spring for urging the operation handle 7 to rotate, and when the rotation position of the operation handle 7 with respect to the casing 9 is near the closed position, that is, the rotation of the operation handle 7. When the position is in the range of 0 ° to 90 ° counterclockwise with respect to the fully closed position of FIG. 13 (a), the operation handle 7 is turned toward the fully closed position and the clockwise direction of FIG. 13 (a). The operating handle 7 for the casing 9
13 is in a rotation position near the open position, that is, the rotation position of the operation handle 7 is in the range of 90 ° to 180 ° in the counterclockwise direction with reference to the completely closed position in FIG. In this case, the operation handle 7 is biased in the counterclockwise direction in FIG.

The fulcrum-over spring function of the coil spring 17 prevents the operating handle 7 from being stopped carelessly at the neutral position. The fully opened position referred to here is the rotational position of the operation handle 7 when the end portion 13a of the elongated hole 13 contacts the rotational position regulating pin 14 in FIG. 13A, that is, FIG. It is a rotation position of the operation handle 7 when the operation handle 7 is rotated 180 ° from the state of FIG. 11.

14 (a) and 14 (b) are views showing the appearance of the circuit board 18 incorporated in the casing 9 of the crescent body 2. As shown in FIG.

As shown in FIGS. 14 (a) and 14 (b), the circuit board 18 has a transmitting circuit 19 for transmitting radio waves and a button serving as a power source for driving the transmitting circuit 19. The open / close operation detection switch 21 for detecting the operation of the battery 20 and the operation handle 7 to activate the transmitting circuit 19, and detecting that the crescent body 2 is removed from the one window frame 4 to detect the transmitting circuit 19 And an illicit operation detection switch 22 for operating the.

The open / close operation detection switch 21 has a lead 21a.
It can be constituted by a normally open micro switch or the like which is turned on only when is pressed, and the tampering detection switch 22 includes the lead 22a.
It can be constituted by a normally-closed micro switch or the like which is turned on only when is released from the pressed state.

Further, the terminal 25 fixed to the back surface side of the circuit board 18 is electrically connected to the signal output portion of the transmission circuit 19 arranged on the front side of the circuit board 18. The description of the printed wiring pattern on the circuit board 18 will be omitted.

FIG. 16 is a block diagram schematically showing the electrical connection relationship of the parts arranged on the circuit board 18. As shown in FIG. 16, the open / close operation detection switch 21 and the unauthorized operation detection switch 22 are connected in parallel between the button battery 20 serving as a power source and the transmission circuit 19, and at least one of the switches is connected. When it is turned on, that is, when the operation handle 7 is operated or the crescent body 2 is removed from the window frame 4, the transmission circuit 19
Is designed to work automatically.

This transmitting circuit 19 detects the operation of the operation handle 7 of the crescent body 2, that is, the opening / closing operation of the window frames 4 and 5 (or the illegal removal work of the crescent body 2) and detects it from the radio signal. The open / close detection signal is output and has a function corresponding to the transmitter circuit 68 of the door-side unit 69 or the door-side unit 71 described above.

The state where the circuit board 18 is mounted in the casing 9 of the crescent body 2 is shown in FIGS.
It shows in (b). As shown in FIGS. 15A and 15B, the circuit board 18 includes the tampering detection switch 2
It is inserted from the back surface side of the casing 9 with 2 facing outward, and its four corners are fixed to the substrate receiving portion 23 of the casing 9 with screws. The opening 24 provided in the central portion of the circuit board 18 is used for assembling the circuit board 18,
While accurately grasping the relative positional relationship between the lead 21a and the terminal 25 of the opening / closing operation detection switch 21 provided on the rear surface side of the circuit board 18 and the rotary cam 12 on the casing 9 side, avoiding interference between the two. This is a viewing window for smooth assembly work.

Terminal 2 provided on the back side of circuit board 18
As shown in FIG. 15 (a), the reference numeral 5 elastically slidably contacts the outer periphery of the rotary cam 12 to electrically connect the signal output portion of the transmission circuit 19 and the operation handle 7. As described above, the operating handle 7 is made of a conductive material such as an aluminum alloy, and the operating handle 7 is electrically connected to the transmitting circuit 19 to function as an antenna (see FIG. 16). .

Further, as shown in FIG.
A protrusion 12a as shown in (a) is provided.
Then, when the projection 12a presses the lead 21a of the opening / closing operation detection switch 21 in accordance with the rotational movement of the rotary cam 12 caused by the opening / closing operation of the operation handle 7, the opening / closing operation detection switch 21 changes from the OFF state to the ON state. This state is maintained until the protrusion 12a changes and the protrusion 12a passes the tip of the lead 21a, and the oscillation circuit 19 operates.

The protrusion 12a presses the lead 21a of the open / close operation detection switch 21 by moving the operation handle 7 from the completely closed position as shown in FIG. 15 (a).
About 90 ° in the counterclockwise direction based on the inner direction, or
In FIG. 11, it is the stage when the operation handle 7 is rotated clockwise by approximately 90 °, that is, the timing immediately before the engaging member 6 of the operation handle 7 is disengaged from the locking piece 3.

As shown in FIG. 11, since the engaging member 6 is formed by a tapered arc-shaped ridge, when the operating handle 7 is rotated to a position of about 90 °,
A constant gap is formed between the tapered surface 6a of the engaging member 6 and the inside of the folded back bent portion 3a of the locking piece 3 to insulate the two. Therefore, the impedance of the locking piece 3 and the window frame 5 made of aluminum alloy is not added to the operation handle 7 that functions as an antenna when the transmission circuit 19 operates.
Since the casing 9 of the crescent body 2 is completely insulated from the operation handle 7 by the stepped sleeve 11, the impedance of the aluminum alloy casing 9 and the window frame 4 should be added to the operation handle 7 as an antenna. Nor.

Therefore, the impedance of the operation handle 7 as an antenna is suppressed to a low value, radio waves can be output with a small amount of power consumption, and the impedance is not changed, so that a stable transmission state is secured. be able to.

The fact that the window frames 4 and 5 can be opened by actually releasing the lock is that the operation handle 7 is rotated by 90 ° or more and the engagement between the engaging member 6 and the locking piece 3 is completely released. The operation timing of the opening / closing operation detection switch 21, that is, the operation timing of the transmission circuit 19 is
Slightly earlier than that. That is, the window frames 4 and 5 cannot be opened without operating the transmission circuit 19.

In this embodiment, since the locking piece 3 is formed of an aluminum alloy or the like equivalent to the operation handle 7 and the casing 9, the impedance of the locking piece 3 and the window frame 5 affects the operation handle 7 as an antenna. In order to prevent addition, it is necessary to strictly set the operation timing of the opening / closing operation detection switch 21 as described above.
When the insulating member is made of synthetic resin or the like, there is no problem of impedance increase due to the contact between the engaging member 6 and the locking piece 3, so the operation timing of the opening / closing operation detection switch 21 is set to the engaging member. It does not matter at any time as long as it is a stage before the fitting between 6 and the locking piece 3 is completely released.

In the crescent body 2 thus constructed, the screw 27 is inserted from the front side into the through holes 26 formed at the upper and lower ends thereof, and the one window frame 4 is fitted as shown in FIG. It is fixed.

By fixing the crescent body 2 to the window frame 4, the lead 22a of the tampering detection switch 22 provided on the circuit board 18 is pressed by the abutment surface of the window frame 4 and the normally closed tampering operation is performed. Detection switch 2
2 is opened (OFF) in a state as shown in FIG. Therefore, as long as the crescent body 2 is normally fixed to the window frame 4, the tampering detection switch 22 does not operate and the transmitting circuit 19 does not react.

However, if an intruder from the outside tries to unlock the window frames 4 and 5 by removing the crescent body 2 from the window frame 4, the crescent body 2 will move to the window frame 4.
When the operation handle 7 is opened / closed, since the pressing force acting on the lead 22a is lost by separating from the contact surface of the contact 22 and the tampering detection switch 22 automatically returns to the normally closed state (ON). Transmitting circuit 1 in the same manner as
9 operates to output the opening / closing detection signal.

The structure of the alarm device 28 which operates in response to the open / close detection signal from the transmission circuit 19 has been described with reference to FIGS. 6 and 8. In the case of the fourth embodiment, the crime prevention is performed. The characteristics of the opening / closing detection signal output from the transmission circuit 19 of the functional crescent 1 are matched with the characteristics of the opening / closing detection signal output from the transmission circuit 68 of the door side unit 69 or the door side unit 71, so that the door side unit 69. Alternatively, when the open / close detection signal of the door-side unit 71 is received, and also when the open / close detection signal of the crime prevention crescent 1 is received, the same alarm device 28 is adjusted to operate.

Further, since the crime prevention crescent 1 of this embodiment is not provided with a special power switch for prohibiting the operation of the transmission circuit 19, the window frames 4 and 5 can be opened and closed at the request of the housekeeper. In the case of the required lock / unlock operation of the Crescent 1 with a crime prevention function, the open / close operation detection switch 21 reacts unconditionally, and the transmission circuit 19 is activated each time the open / close detection signal is transmitted. However, if the power switch 36 on the alarm device 28 side is turned off, the silent alarm output from the alarm speaker 32 can be prohibited.

The volume of the alarm output itself can be freely adjusted by operating the volume setting switch 34, and the operating time of the alarm device 28, that is, the alarm speaker 3
The alarm output duration from 2 is set by the timer setting switch 3
It is possible to freely adjust by 3

If a plurality of crime prevention crescents 1 having the same frequency of the open / close detection signal are arranged in the window frame portions of the same house 39, only a single alarm device 28 is provided. Crescent with crime prevention function for either window frame 1
Alternatively, it is possible to accurately detect that the door 41 has been opened / closed.

The frequency of the open / closed detection signal is set separately for the crime prevention crescent 1 and the door side unit 69 or the door side unit 71, and the alarm device 28 is provided with multiple channels. If an alarm lamp or the like corresponding to is provided, it is possible to discriminate whether the opening / closing operation of the door 41 or the window frame has been performed.

Furthermore, a plurality of crime prevention crescents 1 having different frequencies of open / close detection signals are provided in the window frame portions of the same house 39 at various places, and the alarm device 28 is provided with multiple channels, and the alarm device 28 corresponds to each frequency. If an alarm lamp or the like is provided, it is possible to specify which window frame the crime prevention crescent 1 has been operated.

Further, by adopting the crime prevention crescent 1 and the door side unit 69 or the door side unit 71 for transmitting an open / close detection signal having a frequency different from that used in the adjacent houses, the adjacent houses can be connected to each other. It is possible to prevent malfunction of the alarm device 28 due to duplication of radio waves.

Although the embodiment in which the operation handle 7 of the crime prevention crescent 1 is used as an antenna for transmission has been described above, when the operation handle 7 and the casing 9 are made of a non-conductive material such as synthetic resin. Has
It is also possible to mount a coil antenna or the like in these parts and use it as a transmitting antenna.

It is also possible to combine the operation handle 7 and the casing 9 without insulating the operation handle 7 and the casing 9 and use them as an antenna for transmission. In this case, the casing 9 and one of the window frames 4 are insulated with a rubber sheet or the like, and an insulating sleeve made of synthetic resin or the like is interposed between the casing 9 and the screw 27 to provide the oscillator circuit 19
Is designed according to the combined impedance of the operating handle 7 and the casing 9.

Further, as the opening / closing operation detection switch 21 and the unauthorized operation detection switch 22, well-known detection means such as a photo sensor or a proximity switch can be used in addition to the micro switch, but in terms of power consumption. Therefore, it is desirable to use mechanically actuated contacts such as microswitches. In the fourth embodiment, since the operation handle 7 is prohibited from stopping at the neutral position by the action of the coil spring 17 that functions as a fulcrum crossing spring, the operation time of the opening / closing operation detection switch 21 is suppressed to an extremely short time. This is very convenient in terms of power saving.

In addition, in the fourth embodiment, the proximity switch 47 or the limit switch 72 is used to detect the opening / closing operation of the door 41. However, the crime prevention crescent 1 for the locking tool 44 or the door knob of the door 41 is used. It is also possible to apply a configuration substantially the same as that of the above-described case and output the opening / closing detection signal notifying the opening / closing operation of the door 41 by detecting the rotating operation of the locking tool 44 or the door knob, see also the fourth embodiment. This can be easily implemented.

[0116]

In the security device for a house according to the present invention, the alarm signal limiting means is operated by the wireless signal transmitting means provided integrally with the key of the locking tool, so that the alarm means can be activated or deactivated with one touch. With this configuration, it is possible to easily lock / unlock the door and switch the alarm means on / off with only one key. Therefore, unlike the conventional alarm equipment, it is not necessary to have a key or card dedicated to the alarm means, and it is not necessary to perform troublesome code input operation using the numeric keypad, so that the housekeeper often goes in and out of the house. Even so, there is no need to be bothered by a troublesome entry / exit operation. Moreover, since only a person who has the key of the locking tool, that is, the family member, can enter / exit the room without activating the alarm means, the door is opened / closed by monitoring the operation of the alarm means. It is possible to reliably determine whether the person is a householder or an outsider.

Further, since the opening / closing operation detecting means, the alarm means, and the alarm operation limiting means are integrated and arranged on the door, there is no need to process the door frame, and the door itself does not need to be processed. Since it can be done only in one place, the overall manufacturing cost including the door and the security device can be reduced.

Further, by installing the alarm means which operates in response to the radio signal output from the opening / closing operation detecting means in the house, it is possible to watch the opening / closing operation of the entrance and exit while staying in the room in which the resident resides.

Further, since the alarm means operates in addition to the opening / closing detection signal from the opening / closing operation detecting means provided on the door, the opening / closing detection signal from the crime prevention crescent attached to the window frame is also activated. A single alarm means can be used to keep an eye on door opening / closing operations and window frame opening / closing operations.Even if multiple security devices are installed on the doors / window frames of the entrance / exit, it is necessary for the home security device. It is possible to reduce the overall construction cost.

Further, since the main part of the opening / closing operation detecting means is composed of the proximity switch for detecting the conductive door frame, the opening / closing operation detecting means projects into the gap between the door and the door frame visually recognized from the outside. It is difficult to determine the location of the opening / closing operation detecting means from the outside of the door, which is advantageous in terms of crime prevention measures.

Further, when the limit switch is used as the opening / closing operation detecting means, the limit switch is arranged so as to overlap the hinge position of the door, so that the actuator of the limit switch projects into the gap between the door and the door frame. Even in the case of doing so, it is possible to prevent the actuator from being found from the outside.

[Brief description of drawings]

FIG. 1 is a front view showing, in appearance, a state in which a house security device according to a first embodiment of the present invention is attached to a doorway of a house.

FIG. 2 (a) is a view showing a shape of a cutout portion provided on a back surface of a door for mounting the house crime prevention device of the same embodiment, and FIG. 2 (b) is for house of the same embodiment. The figure which simplified and showed the internal structure of the security device, FIG.2 (c) is the figure which showed the house security device of the same embodiment from the back side, FIG.2 (d) is the house security device of the same embodiment. It is the figure which showed the principal part of the door from the back surface side in the state attached to the door.

FIG. 3 is a functional block diagram showing a simplified electrical structure of the house crime prevention device of the same embodiment.

FIG. 4 (a) is a diagram showing an appearance of a key for locking / unlocking the locking tool of the embodiment, and FIG. 4 (b) is a functional block diagram showing an outline of a key structure. is there.

FIG. 5 (a) is a diagram showing a schematic configuration of a door-side unit that constitutes a part of the house crime prevention device of the second embodiment of the present invention, and FIG. 5 (b) is a diagram of the same embodiment. It is the figure which showed the door side unit from the back surface side.

FIG. 6 is a view showing an outer appearance of an alarm device that constitutes a part of the house crime prevention device of the same embodiment.

FIG. 7 is a functional block diagram showing a simplified electrical structure of the door-side unit of the same embodiment.

FIG. 8 is a functional block diagram showing a simplified electrical structure of the alarm device of the same embodiment.

FIG. 9 is a front view showing, in an external view, a state in which a door-side unit forming a part of the house crime prevention device according to the third embodiment of the present invention is attached to a doorway of a house.

FIG. 10 (a) is a view showing the shape of a cutout portion provided on the back surface of the door for mounting the door side unit of the same embodiment, and FIG. 10 (b) is a door side unit of the same embodiment. 10C is a simplified view of the internal structure of FIG. 10, FIG. 10C is a rear view of the door-side unit of the embodiment, and FIG.
(D) is the figure which showed the principal part of a door from the back side in the state where the door side unit of the embodiment was attached to the door.

FIG. 11 is a perspective view showing an appearance of a crime prevention function crescent used in the house crime prevention device according to the fourth embodiment of the present invention.

FIG. 12 (a) is a side view showing the internal structure of a crime prevention crescent casing, and FIG. 12 (b) is a sectional view thereof.

FIG. 13 (a) is a side view showing an internal structure of the crime prevention crescent casing with mechanical components attached thereto, and FIG. 13 (b) is a sectional view thereof.

FIG. 1 (a) is a plan view showing an outline of a circuit board mounted in a casing of a crime prevention crescent, and FIG. 14 (b) is a side view thereof.

FIG. 15 (a) is a side view showing an internal structure in a state where mechanical components and a circuit board are attached to a casing of a crime prevention crescent, and FIG. 15 (b) is a sectional view thereof.

FIG. 16 is a block diagram schematically showing an electrical connection relationship of parts on the circuit board of the crime prevention crescent.

[Explanation of symbols]

1 Crescent with crime prevention function 2 Crescent body 3 locking pieces 3a folded back 4 window frames 5 window frames 6 Engagement member 6a Tapered surface 7 Operation handle 8 shafts 9 casing 10 through holes 11 step sleeve 12 rotating cams 12a protrusion 13 slots 14 Rotational position control pin 15 pin 16 Spring locking pin 17 coil spring 18 circuit board 19 Transmitter circuit 20 button battery (power supply) 21 Open / close operation detection switch 21a lead 22 Unauthorized operation detection switch 22a lead 23 Board receiving part 24 opening 25 terminals 26 through holes 27 screws 28 Alarm device (alarm means) 29 Receiver circuit 30 timer circuit 31 volumes 32 alarm speaker 33 Timer setting switch 34 Volume setting switch 35 code 36 power switch 37 pilot lamp 38 Security Equipment for Houses 39 houses 40 doorway 41 door 42 door frame 43 Hinge 44 Locking tool 45 handle 46 notch 47 Proximity switch (opening / closing operation detection means) 48 buzzer (alarm means) 49 Control circuit (alarm operation limiting means) 50 power 51 yuan switch 52 Mounting plate 53 screw through hole 54 Open / close lid 55 through hole 56 fixing screws 57 female screw 58 keys 59 Receiver circuit 60 ON / OFF switch 61 Switching circuit 62 ON / OFF switch 63 power supply 64 transmitter circuit (wireless signal transmitter) 65 Operation switch 66 opening 67 Control circuit (main part of alarm operation limiting means) 68 Sending circuit (a part of opening / closing operation detecting means) 69 Door side unit 70 Insulation member 71 Door side unit 72 Limit switch (main part of opening / closing operation detection means) 73 Actuator

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G08B 13/00-15/02 E05B 45/12

Claims (6)

(57) [Claims] 1. An opening / closing operation detecting means which is provided at an entrance / exit of a house provided with a door having a locking tool, detects opening / closing operation of the door and outputs an opening / closing detection signal, and opening / closing detection from the opening / closing operation detecting means. A security device for a house, comprising: an alarm means that operates based on a signal, wherein the alarm means is switched between an operable state and an inoperable state based on a switching control radio signal different from the opening / closing detection signal. A house characterized in that an alarm operation limiting means is provided side by side with the opening / closing operation detecting means, and a wireless signal transmitting means for outputting the switching control wireless signal is integrally provided on the key of the locking tool. Crime prevention device. 2. The crime prevention device for a house according to claim 1, wherein the opening / closing operation detecting means, the alarm means, and the alarm operation limiting means are integrated and provided on the door. 3. The opening / closing operation detecting means and the alarm operation limiting means are integrally provided on the door, and
The alarm means is installed in the house so as to be activated by receiving the opening / closing detection signal composed of a wireless signal output by the opening / closing operation detecting means, and the alarm operation limiting means is the switching control radio. It is configured to switch the alarm means between an operable state and an inoperable state by switching between a state in which the output of the opening / closing detection signal from the opening / closing operation detecting means is permitted and a state in which it is prohibited based on a signal. The house crime prevention device according to claim 1. 4. The alarm means is also activated by an opening / closing detection signal, which is a wireless signal output when a crime prevention crescent attached to a window frame of the house detects opening / closing operation of the window frame. The house crime prevention device according to claim 3, which is configured. 5. A conductive door frame is arranged at the entrance and exit, and a main part of the opening / closing operation detecting means is constituted by a proximity switch arranged at a swing end of the door. The crime prevention device for a house according to claim 1, claim 2, claim 3, or claim 4. 6. The opening / closing operation detecting means is mainly constituted by a limit switch disposed at a hinge position of the door.
The security device for a house according to claim 3 or 4.