WO2010001748A1

WO2010001748A1 - Automobile anti-theft device

Info

Publication number: WO2010001748A1
Application number: PCT/JP2009/061281
Authority: WO
Inventors: 恒雄鈴木
Original assignee: 株式会社豊田自動織機
Priority date: 2008-07-04
Filing date: 2009-06-22
Publication date: 2010-01-07
Also published as: JP2010012993A; TW201006708A

Abstract

An automobile anti-theft device is provided with a clip and a buzzer module. The clip is mounted to window glass of an automobile and urges different positions in the surface of the window glass by elastic force of the clip. When the window glass is broken, the clip breaks a region of the window glass to detect the breakage. The buzzer module is provided to the clip and is operated to output an alarm sound when the clip breaks the region of the window glass.

Description

Security device for automobile

The present invention relates to an automobile crime prevention device.

In patent document 1, the apparatus which detects the crack of the window glass of a vehicle for theft prevention is disclosed.
As shown in FIG. 18, this apparatus is configured to attach the carrier plate 211 of the cable-type window regulator 210 that supports the window glass 200 when the window glass 200 is in the fully closed position where the window opening is closed. The compression coil spring 220 is urged in the closing direction. When the window glass 200 is broken, the restriction by the stopper pin 205 provided on the window glass 200 and the engaging portion 206 provided on the vehicle body is released, and the carrier plate 211 is moved from the fully closed position of the window glass 200 by the compression coil spring 220. Move to the closed side. The limit switch 230 detects the breakage of the window glass 200 by detecting the movement of the carrier plate 211.

Then, a detection signal from the limit switch 230 is sent to the controller. The controller sounds a buzzer or cuts the engine fuel and cuts the spark plug so that the engine cannot be started.

Japanese Patent Laid-Open No. 11-321564

The window glass 200 is usually made of tempered glass. Although this window glass is shattered when an impact is applied, a part of the window glass may remain without being crushed. In particular, in the detection device, when the window glass 200 remains in the vicinity of the carrier plate 211, the carrier plate 211 does not move in the closing direction, and there is a possibility that the breakage of the window glass 200 is not detected. In addition, since the limit switch 230 is connected to the controller by a cord, when considering the mounting of the detection device on a vehicle, a design in consideration of the handling of the cord is required, which is a factor that hinders the freedom of mounting. It was.

An object of the present invention is to detect a broken window glass even when the window glass remains without being completely pulverized due to the broken window glass, and has an improved degree of freedom for mounting. It is to provide a security device.

In order to achieve the above object, a vehicle security device according to one aspect of the present invention includes a breakage detector and an alarm. The breakage detector is attached to a window glass of a vehicle and urges different positions in the plane of the window glass by its own elastic force. When the window glass is broken, the breakage detector pulverizes a part of the window glass to detect breakage of the window glass. The alarm device is provided in the breakage detection tool, and the breakage detection tool is activated by crushing a partial region of the window glass to output an alarm sound.

In order to achieve the above object, a vehicle security device according to a further aspect of the present invention includes a breakage detector, a wireless transmitter, and a wireless receiver. The breakage detector is attached to a window glass of a vehicle and urges different positions in the plane of the window glass by its own elastic force. When the window glass is broken, the breakage detector pulverizes a part of the window glass to detect breakage of the window glass. The wireless transmission unit is provided in the breakage detection tool, and operates when the breakage detection tool crushes a partial region of the window glass to transmit a breakage detection signal. The wireless receiver is mounted on a vehicle and detects breakage of the window glass based on receiving a breakage detection signal from the wireless transmitter.

The top view of the vehicle (passenger car) to which the automobile crime prevention device according to the first and second embodiments of the present invention is applied. The electrical block diagram of the crime prevention apparatus for motor vehicles. The disassembled perspective view of the right front door of the passenger car of FIG. The schematic front view of the right front door of FIG. 3 provided with the detection tool and buzzer module which concern on the 1st Embodiment of this invention. FIG. 5 is a longitudinal sectional view taken along line 5-5 in FIG. The front view of the overhead console vicinity in the vehicle interior of the passenger car of FIG. (A) is a waveform diagram of an alarm sound signal, (b) is a waveform diagram of an identification sound signal, and (c) is a waveform diagram after addition of the alarm sound signal and the identification sound signal. The perspective view of the clip and buzzer module of FIG. 9A is a front view of the clip and buzzer module of FIG. 8, and FIG. 9B is a sectional view taken along line 9b-9b of FIG. (A) is a front view of the clip and buzzer module of FIG. 8, (b) is a sectional view taken along line 10b-10b of (a). (A) is a front view of the clip and buzzer module of FIG. 8, (b) is a sectional view taken along line 11b-11b of (a). The perspective view of the detection tool and buzzer module which concern on the 2nd Embodiment of this invention. (A) is a front view of the detector and the buzzer module of FIG. 12, (b) is a sectional view taken along line 13b-13b in (a), and (c) is a sectional view taken along line 13c-13c in (a). Figure. FIG. 13 is an exploded perspective view of the detector and buzzer module of FIG. 12. 12A is a front view of the detector and the buzzer module of FIG. 12, FIG. 12B is a sectional view taken along line 15b-15b in FIG. 12A, and FIG. 12C is a sectional view taken along line 15c-15c in FIG. Figure. (A) is a front view of the detector and buzzer module of FIG. 12, (b) is a cross-sectional view taken along line 16b-16b in (a), and (c) is a cross section taken along line 16c-16c in (a). Figure. The perspective view of the detection tool and buzzer module of FIG. The front view of the detection apparatus for demonstrating a prior art.

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a vehicle (passenger car) C according to the present embodiment. In FIG. 1, a vehicle C is a four-door type, and doors 1 are provided on the left and right sides of the vehicle body.

FIG. 2 is an overall configuration diagram of the automobile crime prevention device 30. In FIG. 2, the automobile crime prevention device 30 includes a clip 40 as a window glass breakage detector, a buzzer module 50 as a wireless transmission unit, and a glass breakage determination circuit 60 as a wireless reception unit. The openable window glass 5 can be broken by the automobile crime prevention device 30 to prevent unauthorized entry into the vehicle.

In FIG. 1, a clip 40 is attached to the window glass 5 of each door 1.
In FIG. 1, a glass breakage determination circuit 60 is disposed in the room of the vehicle C. Specifically, as shown in FIG. 6, an overhead console near the rear view mirror is provided with a glass breakage determination circuit 60, and the glass breakage determination circuit 60 includes a microphone 61.

FIG. 3 is an exploded perspective view of the right front door of the passenger car, and FIG. 4 is a schematic front view of the right front door of the passenger car. The doors other than the right front door, that is, the left front door, the right rear door, and the left rear door have the same configuration.

As shown in FIG. 3, the door 1 includes an outer panel 2 and an inner panel 3. A window glass 5 made of tempered glass is disposed between the outer panel 2 and the inner panel 3. The thickness of the window glass 5 is about 3.1 mm to 5.0 mm. A door trim 8 is attached to the inner side of the inner panel 3 (see FIG. 3).

Inside the door 1 is housed a window regulator 10 that moves the window glass 5 up and down. In the present embodiment, an X-arm type window regulator is used as the window regulator 10. The inner panel 3 is provided with a door part assembly hole 3a, and a modular panel 6 is provided so as to close the door part assembly hole 3a.

The X-arm type window regulator 10 is supported on the outer surface of the modular panel 6 via a base plate (fixed base) 11. That is, the shaft 13 of the lift arm 12 of the X arm type window regulator 10 is supported on the base plate 11 fixed to the outer surface of the modular panel 6. An electric drive unit 14 is fixed to the base plate 11. As shown in FIG. 4, the lift arm 12 integrally has a sector gear (driven gear) 15 having a shaft 13 as a rotation center, and the electric drive unit 14 shown in FIG. 4) and a motor (not shown) for driving the pinion 16.

4, an intermediate portion of the equalizer arm 18 is rotatably attached to an intermediate portion in the length direction of the lift arm 12 via a shaft 17. Guide pieces (rollers) 19 and 20 are rotatably attached to the upper end portion (tip portion) of the lift arm 12 and the upper end portion (tip portion) of the equalizer arm 18, respectively, and are attached to the lower end portion of the equalizer arm 18. The guide piece (roller) 21 is rotatably attached.

The guide piece 19 of the lift arm 12 and the guide piece 20 of the equalizer arm 18 are movably fitted to the window glass bracket 22, and the guide piece 21 of the equalizer arm 18 is a surface on the vehicle outer side of the modular panel 6 of FIG. It is guided movably by an equalizer arm bracket (posture maintenance rail) 23 fixed to the frame.

A pair of window glass holders 24 are fixed to the lower edge of the window glass 5. The window glass holder 24 is fixed to the lower edge of the window glass 5 in advance, and the window glass 5 having the window glass holder 24 is inserted from the gap between the outer panel 2 and the inner panel 3 and is attached to the window glass bracket 22 by bolts 25. It is fixed.

As shown in FIG. 4, the door 1 is provided with a pair of front and rear glass runs 26. The glass run 26 is made of a rubber material. The window glass 5 is movably supported by a pair of glass runs 26 as rail members. That is, the front and rear end portions of the window glass 5 are guided by the glass run 26 and can move up and down.

When the pinion 16 is driven by the electric drive unit 14 of FIG. 3, the lift arm 12 swings about the shaft 13 via the sector gear 15. As a result, the window glass bracket 22 (window glass 5) is moved to the equalizer arm 18, The

guide pieces

19, 20, 21 and the equalizer arm bracket 23 are moved up and down while maintaining a substantially horizontal state. Thus, the window glass 5 is raised and lowered, and the opening 4 of the vehicle can be freely opened and closed by the window glass 5.

FIG. 5 shows a longitudinal section along line 5-5 in FIG. In FIG. 5, the clip 40 and the buzzer module 50 of the automobile crime prevention device 30 are disposed inside the door 1.
In FIG. 8, the perspective view of the clip 40 and the buzzer module 50 is shown. 9A and 9B show the clip 40 and the buzzer module 50, where FIG. 9A is a front view and FIG. 9B is a cross-sectional view taken along line 9b-9b in FIG.

As shown in FIG. 5, the window glass 5 is disposed between the outer panel 2 and the inner panel 3 in a state of being sealed by a weather strip 7. A door trim 8 is disposed on the inner side of the inner panel 3. The clip 40 is disposed at the lower end of the window glass 5 and sandwiches the window glass 5.

As shown in FIGS. 8 and 9, the clip 40 is formed by bending a single steel plate for leaf springs. The clip 40 includes first and

second members

41 and 42 that face each other, and a bent portion (connecting portion) 43. The first member 41 outside the vehicle has a rectangular shape, and the second member 42 inside the vehicle has a square shape narrower than the first member 41. The window glass 5 is disposed between the first member 41 and the second member 42, and the first member 41 and the second member 42 are urged in a direction toward the window glass 5, that is, in a direction approaching each other.

The bent portion 43 connects the first member 41 and the second member 42. The bent portion 43 includes a first bent portion 43a having a crank-shaped cross section and a second bent portion 43b having a U-shaped cross section, and the distance between the inner surfaces facing each other of the second bent portion 43b is determined by the thickness of the window glass 5. Is also small. Therefore, the end surface of the window glass 5 is in contact with the first bent portion 43a. That is, the bent portion 43 of the clip 40 is formed with a stepped portion with which the end surface of the window glass 5 abuts, so that the lower end of the window glass 5 does not fit into the clip 40 beyond the stepped portion. In other words, the clip 40 is configured so as not to sandwich the window glass 5 in the vicinity of the lower side thereof, that is, in the vicinity of the second bent portion 43b.

A rectangular through hole 44 is formed at the center of the first member 41. The second member 42 is located at a position corresponding to the through hole 44. A protrusion 45 is formed at each of the upper left and right corners of the first member 41 so as to protrude toward the vehicle interior side. As shown in FIG. 5, the tips of the protrusions 45 are in contact with the first surface (back surface 5 b) of the window glass 5. As shown in FIGS. 8 and 9, the second member 42 is in contact with the second surface (surface 5 a) of the window glass 5. Therefore, the contact portion of the first member 41 with respect to the window glass 5 is spaced apart at two locations within the plane of the window glass 5 so as to sandwich the contact portion of the second member 42 with respect to the window glass 5. The first member 41 has a portion extending between the contact portions. In other words, the portion of the first member 41 that faces the window glass 5 has a reverse concave shape that surrounds the contact portion of the second member 42 with respect to the window glass 5 from three sides, thereby destroying the window glass 5. It has a nice shape. The second member 42 is bonded to the window glass 5.

Thus, the 1st member 41 and the 2nd member 42 are urged | biased in the direction which mutually approaches with the window glass 5 in the position which differs in the surface of the window glass 5, and its own elastic force. Yes. That is, force is applied to the window glass 5 at different locations on the front surface 5a and the back surface 5b of the window glass 5. Further, the clip 40 clamps (holds) the lower end portion of the window glass 5 with a predetermined force or more.

A buzzer module 50 is attached to the first member 41 of the clip 40. The overall shape of the case 51 of the buzzer module 50 is a box shape having a predetermined thickness. The first surface of the case 51 is bonded to the first member 41 of the clip 40. A recess 51 a is formed on the first surface (adhesion surface) of the case 51. A protrusion-type push button switch 52 is provided on the bottom surface of the recess 51a so as to appear and retract. The push button switch 52 always protrudes, and this state is an off state. On the other hand, when the push button switch 52 is pressed, the switch is turned on.

The internal structure of the buzzer module 50 is shown in FIG. The buzzer module 50 includes a push button switch 52, oscillators 53 and 54, a buzzer sound signal generator 55, an identification sound signal generator 56, a power amplifier 57, and a speaker (buzzer) 58. Oscillators 53 and 54 are connected to the push button switch 52. A buzzer sound signal generator 55 is connected to the oscillator 53. An identification sound signal generator 56 is connected to the oscillator 54. The output of the buzzer sound signal generator 55 and the output of the identification sound signal generator 56 are collected and connected to the speaker 58 via the power amplifier 57. Further, the buzzer module 50 is provided with a battery (power source) (not shown).

As shown in FIG. 2, the glass breakage determination circuit 60 includes a microphone 61, bandpass filters 62 and 63, a buzzer sound determination circuit 64, an identification sound determination circuit 65, and an AND gate 66. The microphone 61 collects sound emitted from the speaker 58 of the buzzer module 50. A bandpass filter 62 and a bandpass filter 63 are connected to the microphone 61. A buzzer sound determination circuit 64 is connected to the band pass filter 62. An identification sound determination circuit 65 is connected to the band pass filter 63. An AND gate 66 is connected to the buzzer sound determination circuit 64 and the identification sound determination circuit 65. The AND gate 66 of the determination circuit 60 is connected to the security ECU 70 via an in-vehicle cable.

Next, an operation of the automobile crime prevention device 30 configured as described above, that is, an operation when the window glass 5 is broken (broken) will be described.
In normal times, when the occupant leaves the vehicle, the window glass 5 is in the fully closed position or is opened by several centimeters. Further, the clip 40 disposed at the end of the window glass 5 sandwiches the end of the window glass 5. Specifically, the window glass 5 is sandwiched between the first member 41 and the second member 42 by the elastic force of the clip 40 itself. Further, the push button switch 52 of the buzzer module 50 is not pressed and is in an off state.

From this state, if the window glass 5 is broken, its strength decreases. That is, when a part of the window glass 5 made of tempered glass is broken, the window glass 5 is cracked and the strength is remarkably lowered as shown in FIG.

As the strength decreases, the clip 40 crushes the end portion (lower end portion) of the window glass 5 by its clamping force as shown in FIGS. 11 (a) and 11 (b). That is, the clip 40 partially pulverizes the window glass 5 made of tempered glass by its own spring force.

Specifically, as shown in FIGS. 10A and 10B, the window glass 5 is pushed by the urging force of the second member 42 and comes into contact with the first member 41 of the clip 40. At this time, in a state where the periphery of the through hole 44 is supported by the first member 41, the portion of the window glass 5 corresponding to the through hole 44 is pressed by the biasing force of the second member 42 as shown in FIG. Is crushed by.

Then, the clip 40 is crushed in a partial region of the window glass 5 to detect breakage of the window glass 5. As described above, the tempered glass has a characteristic that if a part of the glass is broken, all parts are cracked and the strength is remarkably lowered. By utilizing this feature, undetected and erroneous detection of breakage of the window glass 5 can be minimized.

Further, as shown in FIG. 4, it is possible to detect the breakage of the window glass 5 even when the window glass 5 is not in the fully closed position. Specifically, in the prior art (Patent Document 1), since the movement of the window glass when the window glass is fully closed is detected, the breakage of the window glass cannot be detected when the window glass is not in the fully closed position. In this embodiment, it is possible to detect breakage of the window glass even when the window glass is slightly opened for ventilation or the like and the window glass is not in the fully closed position.

Further, the clip 40 shown in FIGS. 9 (a) and 9 (b) has a first member 41 and a second member 42 which are made to face each other by bending a steel plate for a leaf spring. The first member 41 and the second member 42 are in contact with the window glass 5 at different positions in the plane of the window glass 5 and are urged in opposite directions to the glass surface by their own elastic force. Thereby, force is applied to the window glass 5 at different locations on the front surface 5a and the back surface 5b of the window glass 5. Therefore, it is possible to reliably detect the breakage of the window glass 5 by reliably crushing the end portion of the window glass 5 with the breakage of the window glass 5.

Further, as shown in FIGS. 9A and 9B, the contact portion of the first member 41 with respect to the window glass 5 is in the plane of the window glass 5 with respect to the contact portion of the second member 42 with respect to the window glass 5. It is separated. Further, the upper end portions of both contact portions of the first member 41 are connected to each other. Therefore, as shown in FIGS. 10A and 10B, the window glass 5 is pressed in a state where the portion of the window glass 5 around the contact portion of the second member 42 is in contact with the first member 41. The That is, the portion of the window glass 5 inside the inner periphery of the through hole 44 is pressed by the second member 42 in a state where the first member 41 supports the portion of the window glass 5 around the through hole 44. Thereby, as shown in FIG. 11, the edge part of the window glass 5 can be grind | pulverized easily.

On the other hand, as described above, the clip 40 pulverizes a partial region of the window glass 5, so that the second member 42 is restored to the original by the elastic force of the clip 40 as shown in FIGS. 11A and 11B. Return to state. At this time, the second member 42 presses the push button switch 52 of the buzzer module 50. As a result, the push button switch 52 is turned on.

When the push button switch 52 is turned on, the buzzer module 50 of FIG. 2 operates as follows.
When the push button switch 52 in FIG. 2 is turned on, a signal is sent from the oscillator 53 to the buzzer sound signal generator 55 to generate an alarm sound signal (buzzer sound signal). When the push button switch 52 is turned on, a signal is sent from the oscillator 54 to the identification sound signal generator 56 to generate an identification sound signal. Then, the identification sound signal by the identification sound signal generator 56 is added (added) to the alarm sound signal of the buzzer sound signal generator 55, amplified by the power amplifier 57, and output as a sound from the speaker 58. That is, the damage detection identification sound is added to the alarm sound and is output from the speaker 58. At this time, a sound of 100 dB or more is emitted from the speaker 58 to the surroundings. Thereby, the person who broke the window glass 5 is directly intimidated and informs the surroundings of the breakage of the window glass 5.

7 (a) shows an alarm sound signal, and FIG. 7 (b) shows an identification sound signal. In comparison between the alarm sound signal waveform and the identification sound signal waveform, the identification sound signal has a longer period than the alarm sound signal. For example, the frequency of the identification sound signal is about 1000 Hz. FIG. 7C shows a signal after the alarm sound signal and the identification sound signal are added. As shown in FIG. 7C, an identification sound signal is added (superimposed) to the alarm sound signal. That is, the alarm sound signal is modulated and output from the speaker 58.

The sound emitted from the speaker 58 of the buzzer module 50 is taken into the microphone 61 of the determination circuit 60 in FIG. 2, and the determination circuit 60 operates as follows.
The sound emitted from the speaker 58 of the buzzer module 50 is converted into an electric signal by the microphone 61 (see FIG. 7C). The frequency component of the alarm sound signal (buzzer sound signal) in the electric signal from the microphone 61 is extracted by the band pass filter 62. That is, the component of FIG. 7A is demodulated with respect to FIG. Further, the frequency component of the identification sound signal in the electric signal from the microphone 61 is extracted by the band pass filter 63. That is, the component of FIG. 7B is demodulated with respect to FIG.

Then, in the buzzer sound determination circuit 64, the presence or absence of an alarm sound (buzzer sound) is determined from the period and intensity of the signal from the band pass filter 62. In addition, the identification sound determination circuit 65 determines the presence or absence of the identification sound from the period and intensity of the signal from the band pass filter 63. That is, the damage detection identification sound is extracted from the sound collected by the microphone 61, and thereby, the breakage of the window glass can be detected. The determination result by the buzzer sound determination circuit 64 and the determination result by the identification sound determination circuit 65 are sent to the AND gate 66. When an alarm sound (buzzer sound) is detected by the buzzer sound determination circuit 64 and an identification sound is detected by the identification sound determination circuit 65, it is determined that the window glass has been broken, and this is reported from the AND gate 66 to the inside of the vehicle. It is sent to the security ECU 70 via a cable. The security ECU 70 notifies the management station outside the vehicle and the owner of the vehicle by wireless communication or the like.

In this way, when the window glass 5 is broken, the push button switch 52 of the buzzer module 50 is turned on in conjunction with the crushing operation in the partial area of the window glass 5 by the clip 40 and the sound is used to open the window. The glass breakage detection circuit 60 is notified of the breakage detection of the glass 5. That is, the buzzer module 50 modulates an alarm sound and an identification sound that is an audible sound as a damage detection signal and outputs it from the speaker 58, and the determination circuit 60 demodulates the sound received by the microphone 61 to detect the damage. Extract the signal. Therefore, since communication is performed using a large volume, communication with the glass breakage determination circuit 60 is not easily disturbed. In addition, in order to disturb the system, a loud sound is required, so that the person who broke the window glass cannot generate the sound unless he / she generates his own sound.

Furthermore, since the identification sound is added to the alarm sound emitted from the buzzer module 50, it is preferable as a countermeasure against false alarms and mischief such as an alarm. Further, since the buzzer module 50 is mounted on the clip 40, wiring is unnecessary.

According to the above embodiment, the following advantages can be obtained.
(1) The automobile crime prevention device 30 includes a clip 40 as a breakage detection tool and a buzzer module 50 as an alarm device. The clip 40 includes a first member 41 and a second member 42 and is attached to the window glass 5 of the vehicle. The first member 41 and the second member 42 are biased by their own elastic force at different positions in the plane of the window glass 5, and when the window glass 5 is broken, a partial region of the window glass 5 Is broken to detect breakage of the window glass 5. The buzzer module 50 as an alarm device is provided in the clip 40 and operates when the clip 40 crushes in a partial region of the window glass 5 to output an alarm sound. Therefore, even when the window glass 5 remains without being completely pulverized due to the breakage of the window glass 5, the breakage of the window glass 5 can be reliably detected using the clip 40. Further, when the clip 40 crushes in a partial region of the window glass 5, the buzzer module 50 is activated to output an alarm sound. Therefore, an alarm sound can be output in a cordless manner, and the degree of freedom for mounting the buzzer module 50 can be improved. Further, a member for detecting the displacement of the clip 40 accompanying the crushing of a partial region of the window glass 5 can be eliminated.

(2) The buzzer module 50 includes a switch 52. When the second member 42 that is a part of the clip 40 is displaced by the crushing operation of the clip 40 and the switch 52 is turned on, the buzzer module 50 outputs an alarm sound. The buzzer module 50 can reliably output an alarm sound with a small number of members.

(3) The automobile crime prevention device 30 includes a clip 40, a buzzer module 50 as a wireless transmission unit, and a determination circuit 60 as a wireless reception unit. The buzzer module 50 is provided on the clip 40 and operates when the clip 40 crushes in a partial region of the window glass 5 to transmit a breakage detection signal. The determination circuit 60 is mounted on the vehicle and can detect breakage of the window glass 5 by receiving a breakage detection signal from the buzzer module 50.

(4) The buzzer module 50 includes a switch 52. The switch 52 is turned on when the second member 42 as a part of the clip 40 is displaced by the crushing operation of the clip 40, and transmits a breakage detection signal. The buzzer module 50 can reliably transmit a breakage detection signal with a small number of members.

Next, the second embodiment will be described focusing on the differences from the first embodiment.
In FIG. 12, the perspective view of the detection tool 100 and the buzzer module 130 in this embodiment is shown. 13A is a front view of the detector 100 and the buzzer module 130, FIG. 13B is a cross-sectional view taken along line 13b-13b in FIG. 13A, and FIG. 13C is FIG. FIG. 13 is a sectional view taken along line 13c-13c. FIG. 14 is an exploded perspective view of the detection tool 100 and the buzzer module 130.

15 (a) to 15 (c) show a state where the window glass 5 is cracked and cracked, and FIGS. 16 (a) to 16 (c) and FIG. 17 show the window glass 5 broken. Thus, the state when a part of the window glass 5 is crushed by the detection tool 100 is shown.

As shown in FIG. 14, the detection tool 100 includes a resin base plate 110 and an urging steel plate 120. The base plate 110 has a square plate-like portion 111, and the square plate-like portion 111 has a long rectangular shape on the left and right. The first surface of the square plate portion 111 is bonded to the window glass 5. A fitting protrusion 112 is formed on the right side of the second surface opposite to the first surface of the square plate portion 111. In addition, a through hole 113 extending in the left-right direction is formed in the upper and lower central part of the square plate-like part 111. The base plate 110 is formed thin and can be warped as shown in FIGS. 16 (a) to 16 (c) and FIG.

The urging steel plate 120 includes a main body 121 and a fitting recess 122 located on the right side of the main body 121. The fitting recess 122 is formed by bending the urging steel plate 120. The fitting recess 122 is fitted with the fitting protrusion 112 of the base plate 110. A first strip plate portion 123 and a second strip plate portion 124 that are disposed along the vertical direction are formed on the left side of the fitting recess 122 in the main body portion 121, and the first strip plate portion 123 and the second strip plate portion 124 are formed. Is extended to the left. Further, in the main body 121, a third band plate portion 125 is formed between the first band plate portion 123 and the second band plate portion 124 and on the left side of the fitting recess 122. Is extended to the left. Here, as shown in FIG. 14, the third strip 125 extends linearly from the right base end toward the left tip, but the first strip 123 and the second strip 124 are It extends so as to warp from the base end on the right side toward the tip on the left side. The warpage amount L1 (see FIG. 14) is about 5 mm.

The case 131 of the buzzer module 130 has a box shape, and a mounting portion 132 projects from one surface of the case 131. The attachment portion 132 is bonded to the base plate 110. In this state, a gap S (see FIG. 13B) is formed between the case 131 and the base plate 110. The first strip plate portion 123, the second strip plate portion 124, and the third strip plate portion 125 of the urging steel plate 120 are inserted into the gap S. That is, the fitting recess 122 of the urging steel plate 120 is fitted into the fitting ridge 112 of the base plate 110, and at the same time, the gap S between the case 131 of the buzzer module 130 and the base plate 110 is inserted into the urging steel plate 120. The 1st strip board part 123, the 2nd strip board part 124, and the 3rd strip board part 125 are inserted.

A push button switch 133 is provided on the case 131 of the buzzer module 130. When the base plate 110, the urging steel plate 120, and the buzzer module 130 are assembled and these are assembled to the window glass 5, the third band plate portion 125 of the urging steel plate 120 is pushed by the elastic force of the detection tool 100. The switch 133 is pressed. In this state, the push button switch 133 is in an off state. Thus, in the assembled state, the push button switch 133 of the buzzer module 130 is in a pressed state. At this time, the warping amount L1 in FIG. 14 is zero mm.

In the detection tool 100, the first and

second strips

123 and 124 of the urging steel plate 120 are urged by their own elastic force at different positions in the plane of the window glass 5. When the window glass 5 is broken, the entire window glass 5 is cracked as shown in FIGS. 15 (a) to 15 (c). Along with this, the detection tool 100 performs pulverization in a partial region of the window glass 5 as shown in FIGS. 16 (a) to 16 (c) and FIG. 17 by the reaction force of the urging steel plate 120. The breakage of the glass 5 is detected. At this time, the urging steel plate 120 returns to its original shape. When the shape of the urging steel plate 120 is restored, the buzzer module 130 is lifted and the push button switch 133 is opened. When the push button switch 133 is opened, an alarm sound is output from the speaker of the buzzer module 130.

In the present embodiment, the buzzer module 130 constitutes an alarm device and a wireless transmission unit.
The first and second embodiments are not limited to the above-described configuration, and may be embodied as follows, for example.

Although the X-arm window regulator is used as the window regulator, a cable-type window regulator may be used. Moreover, the drive part may drive the window glass 5 not only by the electric drive unit 14 including a motor but also by a passenger.

The clip 40 and the buzzer module 50 (the detection tool 100 and the buzzer module 130) may be attached to an openable glass roof provided on the rear door or the roof in addition to the side door in the passenger car.

Although the clip 40 is installed at the lower end of the window glass 5, it may be installed at the lower part of the side of the window glass 5, for example. In short, it may be installed in an inconspicuous place inside the door 1 in the end portion of the window glass 5.

The clip 40 (detection tool 100) may be attached to a fixed (fitting type) window glass instead of the openable window glass.
Although an audible sound is used as the damage detection signal, an ultrasonic wave may be used as the damage detection signal.

An electric wave may be used as a damage detection signal. At this time, an RFID system can be used as a communication system between the wireless transmission unit and the wireless reception unit. That is, the wireless transmitter is configured by a substrate, an antenna, and an IC chip and attached to the

detectors

40 and 100, and a wireless receiver as a reader is attached to the vehicle body. Then, the wireless receiver periodically accesses the wireless transmitter to determine whether or not the switch is turned on, and transmits the result to the wireless receiver. In this case, by inductively coupling the wireless transmitter and the wireless receiver, power can be supplied to the wireless transmitter provided in the breakage detector, and the power supply can be excluded from the wireless transmitter. Can do.

In FIG. 2, the band-pass filter 62, the buzzer sound determination circuit 64, and the AND gate 66 in the glass breakage determination circuit 60 may be omitted. In this configuration, the sound emitted from the speaker 58 is converted into an electric signal by the microphone 61, and the identification sound is determined by the identification sound determination circuit 65 through the band-pass filter 63. If it is determined that the sound emitted from the speaker 58 is an identification sound, this is sent to the security ECU 70.

5 ... Window glass, 30 ... Car security device, 40 ... Clip, 50 ... Buzzer module, 60 ... Judgment circuit, 100 ... Detection tool, 110 ... Base plate, 120 ... Steel plate for urging, 130 ... Buzzer module.

Claims

Attached to the window glass of the vehicle, different positions in the plane of the window glass are urged by its own elastic force, and when the window glass is broken, a part of the window glass is crushed to break the window glass. A breakage detector for detecting breakage,
An alarm device that is provided in the breakage detector and that operates by crushing a partial region of the window glass to output an alarm sound;
An automobile crime prevention device comprising:
The alarm includes a switch;
The crime prevention device according to claim 1, wherein when the breakage detector crushes the window glass, a part of the breakage detector is displaced so as to turn on the switch, whereby the alarm device outputs an alarm sound. apparatus.
Attached to the window glass of the vehicle, different positions in the plane of the window glass are urged by its own elastic force, and when the window glass is broken, a part of the window glass is crushed to break the window glass. A breakage detector for detecting breakage,
A wireless transmitter that is provided in the breakage detector and that operates by crushing a partial region of the window glass to transmit a breakage detection signal;
A wireless receiving unit that is mounted on a vehicle and detects breakage of a window glass based on receiving a damage detection signal from the wireless transmission unit;
An automobile crime prevention device comprising:
The crime prevention device according to claim 3, wherein an audible sound is used as the damage detection signal.
The crime prevention device according to claim 3, wherein an ultrasonic wave is used as the damage detection signal.
The crime prevention device according to claim 3, wherein a radio wave is used as the damage detection signal.
The crime prevention device according to claim 6, wherein an RFID system is used as a communication system between the wireless transmission unit and the wireless reception unit.
The wireless transmission unit includes a switch,
When the breakage detector crushes the window glass, a part of the breakage detector is displaced so as to turn on the switch, whereby the wireless transmission unit transmits a breakage detection signal. The crime prevention device according to any one of 7.