JP2005029976A - Contact/biting detection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such a problem that when a plurality of sensor units are independently arranged in a contact/biting detection device, a control section has to make complicated decisions to handle the device, requiring increase in the number of signal lines and causing deterioration in noise resistance and cost increase. <P>SOLUTION: The device has a flexible and cable-shaped piezoelectric sensor 34 detecting biting or contact of a human or a subject, a connecting means 49 connecting a plurality of sensors 34. Each sensor is provided with address information specifying itself. The device is further provided with a single controller 56 monitoring these sensors. The controller 56 can handle a plurality of sensor units as a single unit and can specify the position of a biting or a contact. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention efficiently provides a plurality of pinch detection devices in an electric door or window provided in an opening of an automobile or the like so as to be freely opened and closed.
[0002]
[Prior art]
Automobiles have many openings for getting on and off, loading and unloading of luggage, and ventilation, and a moving body that closes the openings is provided. For example, a sliding door provided at the rear entrance, a flip-up back door in the rear luggage compartment, a sunroof in the vehicle ceiling, and a window in each seat. In recent years, a moving body that closes many of these openings often has an electric switchgear.
[0003]
In this background, there are trends such as the preference of the user who wants to simplify the operation and the universalization that can be used by those who have a handy body. For example, the electrification of sliding doors is rapidly progressing, and it is changing from an optional function selected by a car buyer to a standard equipment. The hatchback doors have also been electrified. For example, if a small woman tries to manually open and close these heavy and large doors, she cannot move easily at the beginning of movement, or does not want to touch these doors that are dirty with dirt or mud. Taste has influenced automakers.
[0004]
And in the motor vehicle provided with such an electric door body, since there is a possibility that a person, a baggage, etc. are accidentally pinched, a sensor for detecting pinching is generally provided. When such a sensor detects pinching, the electric door body in the middle of closing the door is automatically opened to prevent danger.
[0005]
Many electric door bodies and the like have been provided in automobiles, and recently, a single automobile has been equipped with a plurality of units for detecting pinching.
[0006]
Conventionally, as such an example, a sliding door and a window are provided by including a first piezoelectric sensor disposed in a sliding door of a vehicle and a second piezoelectric sensor disposed in a window opening attached to the sliding door. A pinching detection device and an opening / closing device that detect pinching occurring in the above are disclosed (for example, see Patent Document 1).
[0007]
In FIG. 8, a car body 1 of an automobile has an opening 2 for an occupant to enter and exit, and a slide door 3 that is driven by a motor and automatically opens and closes. The vertical end 4 of the slide door 3 is provided with a flexible first piezoelectric sensor 5 built in a protector made of rubber or elastomer. The piezoelectric sensor 5 detects the object pinching that occurs when the slide door 3 is closed, and automatically reverses and opens the slide door 3.
[0008]
On the other hand, the sliding door 3 is provided with a window opening 6 for the purpose of ventilation in the vehicle and is opened and closed by a window glass 7 that can be freely opened and closed. A second piezoelectric sensor 8 is disposed on the opening upper frame of the window opening 6. The second piezoelectric sensor 8 detects the object sandwiched between the window opening 6 and the window glass 7 and automatically inverts the window glass 7.
[0009]
FIG. 9 shows the slide door 3 as viewed from the inside of the vehicle, and shows the arrangement of the first piezoelectric sensor 5 and the second piezoelectric sensor 8. In FIG. 9, the output of the piezoelectric sensor 5 attached to the vertical end of the slide door 1 is input to the first determination means 9 in order to detect pinching. Based on the output signal of the first determination means 9, the first control means 10 controls the first drive means 11. The first driving means 11 is composed of a motor for opening and closing the slide door 1 electrically and a power transmission mechanism such as a belt or a gear. Reference numeral 12 denotes a connector for connecting the determination output signal of the first determination means 9 to the first control means 10.
[0010]
Further, the output of the second piezoelectric sensor 8 attached to the window opening of the slide door 1 is input to the second determination means 13 for detecting pinching. Based on the output signal of the second determination means 13, the second drive means 15 controls the second control means 14. The second driving means 15 is composed of a motor for opening and closing the window glass 7 electrically and a power transmission mechanism using wires or gears. Reference numeral 16 denotes a connector for connecting the determination output signal of the second determination means 13 to the second control means 14.
[0011]
Further, in this conventional example, the first piezoelectric sensor and the second piezoelectric sensor are not configured as separate piezoelectric sensors, but one piezoelectric sensor is extended and arranged at the window opening and the sliding door vertical end. It also mentions the configuration to do.
[0012]
Furthermore, the structure which receives the signal of the piezoelectric sensor arrange | positioned at the window opening part and the vertical edge part of a slide door by one determination means is also disclosed. In this case, it is sufficient to connect the piezoelectric sensor to the determination means by one common piezoelectric sensor and one determination means.
[0013]
It also touches on the reception of two signals from a piezoelectric sensor disposed at the vertical end of the sliding door and a piezoelectric sensor disposed at the window opening by a single determination means. In this case, there is a description that only one determination means is required and that the two piezoelectric sensors can be provided separately, so that the piezoelectric sensor can be easily routed.
[0014]
[Patent Document 1]
JP 2002-70418 A
[0015]
[Problems to be solved by the invention]
However, in the conventional pinch detection device and switchgear, the system can be simplified by using the sensor or the determination unit other than the independent piezoelectric sensor and the determination unit shown in FIG. 9, but pinching occurs in any part. I can't know if I did it. Although it is natural that each sensor and determination means can be detected independently, the system and wiring become complicated.
[0016]
In addition, in recent automobiles, especially in a category called minivans, one unit of sensor is used for the left and right sliding doors, and one unit of sensor is used for the left and right of the back door. There is a possibility that sensors for detecting pinching at 10 or more places such as a body power window and a sunroof may be mounted. In addition, sensors that should be arranged around the entire circumference, such as a back door, may be divided into four units or more in consideration of ease of assembly. In this case, handling each sensor unit independently increases the system scale, complicates wiring, and reduces reliability.
[0017]
The present invention solves the above-described conventional problems, and a contact / pinch detection device that can handle a control system as a single sensor system and that can identify at which part pinching or contact has occurred. The purpose is to provide.
[0018]
[Means for Solving the Problems]
In order to achieve the above object, a contact / pinch detection device according to the present invention comprises sensor means for detecting pinching or contact of a person or an object, and connecting means for connecting a plurality of the sensor means. Comprises address information for specifying this, and comprises a single control means for monitoring these sensor means.
[0019]
As a result, it is possible to provide a contact / pinch detection device that can handle the sensor unit as a single sensor system and that can identify at which part pinching or contact has occurred.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect of the present invention, there is provided a contact / pinch detection device comprising sensor means for detecting pinching or contact of a person or an object and connection means for connecting a plurality of the sensor means, and monitoring these sensor means. The configuration includes a single control means, and the control means can handle a plurality of sensor means as a single unit.
[0021]
The contact / pinch detection device according to claim 2 of the present invention is configured such that each sensor means includes address information for specifying the sensor means, and the control means can specify at which part the pinch or contact has occurred.
[0022]
The contact / pinch detection device according to claim 3 of the present invention has a configuration in which each sensor means is disposed on a moving body such as a power slide door, a power back door, and a power window, or a vehicle body facing the same, and is incorporated in an automobile. is there.
[0023]
The contact / pinch detection device according to claim 4 of the present invention uses a flexible, cable-shaped piezoelectric sensor as sensor means, and reliably detects the generated contact / pinch by vibration.
[0024]
According to a fifth aspect of the present invention, there is provided a contact / pinch detection device including independent control means for monitoring sensor means for each door body, and for each sensor means disposed in a plurality of moving bodies belonging to the door body. The configuration is such that information is added, and address information can be simplified.
[0025]
The contact / pinch detection device according to claim 6 of the present invention has a configuration in which the same address information is given to the same moving body when the plurality of sensor means are arranged on the plurality of moving bodies belonging to a certain door body. Yes, address information can be simplified.
[0026]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0027]
(Example 1)
1 to 7 show a contact / pinch detection device according to Embodiment 1 of the present invention.
[0028]
FIG. 1 is a perspective view in which the present invention is applied to an automobile contact / pinch detection device. The vehicle body 17 is provided with an opening 18 for getting on and off, and the slide door 19 closes the opening. The slide door 19 is energized by a motor and automatically opens and closes by an open / close command such as operating an open / close button provided on a switch or key provided in the driver's seat or an open / close knob 20 on the slide door 19.
[0029]
Sensor means for detecting contact or pinching is disposed in the front vertical direction of the slide door 19. FIG. 3 shows an AA cross section in which the sensor means is mounted, which will be described later. The slide door 19 is provided with a power window 21. Power windows are also installed in the driver and passenger seats. The power window 21 is also provided with sensor means, and is arranged on a window frame rubber (weather strip), not on the glass end face which is a movable body. FIG. 4 shows a C-C cross section on which the sensor means is mounted, which will be described later.
[0030]
Therefore, two sensor units are disposed on the slide door 19. Sliding doors are now available not only on the rear door on the opposite side of the driver's seat but also on the rear door on the driver's seat. The number of cases where both are motor-driven is also increasing. That is, in such a case, at least four units of sensors are provided only by the left and right sliding doors.
[0031]
In addition, a sunroof 22 is provided on the ceiling of the vehicle body 17, and sensor means is also disposed here. The BB section on which the sensor means is mounted has almost the same configuration as the AA section, but will be described later with reference to FIG.
[0032]
FIG. 2 is a rear perspective view of such an automobile. When the back door 23 is opened, a luggage room (luggage room) 24 is formed in the vehicle, and luggage can be carried in and out of the vehicle. The back door 23 is pivotally supported by a hinge (not shown) near its upper end 25 and rotated by a back door motor (not shown). The back door 23 is supported by a damper 26. The damper 26 includes a cylinder and a piston, and is provided so as to absorb the impact of opening and closing of the back door 23 and smoothly open and close. The opening 27 of the vehicle body 17 facing the back door 23 is generally called a rear gate, and closes the interior of the vehicle body 17 together with the back door 23. Reference numeral 33 denotes a protector that holds a sensor inside, and one unit is arranged on each of the left and right sides. In some cases, the unit is divided by the uneven portions of the tail lamp, and four units may be arranged on the left and right.
[0033]
FIG. 3 is a cross-sectional view AA of the slide door 19 and shows a sensor mounting structure. The slide door 19 is formed of two sheet metals. An inner panel 28 located on the vehicle interior 24 side and an outer panel 29 located on the vehicle exterior side. The two panels are formed so that the outer edge 29 of the two panels is folded at the end of the outer panel 29 and meshes with the inner panel 28.
[0034]
Although the peripheral portion of the slide door 19 has a thin plate shape with no thickness as shown in the figure, the center portion is placed so that the inner panel 28 swells toward the luggage room 24 side, and the slide door 19 has a thickness. The sensor is attached to the thick part.
[0035]
The bracket 31 is fixed to the thickness portion of the slide door 19 with a screw, and holds the protector 33 at one end thereof. A piezoelectric sensor 34 is disposed at the tip of the protector 33. The piezoelectric sensor 34 is a flexible, cable-shaped piezoelectric sensor, the details of which will be described later. The protector 33 elastically holds the piezoelectric sensor 34 and is made of a resin such as rubber or elastic elastomer such as EPDM which has more flexibility than the piezoelectric sensor 34. In this embodiment, a hollow portion 35 is provided, and the sensor is formed so as to be easily bent so that the piezoelectric sensor 34 can detect these with high sensitivity when foreign matter is caught or contacted. The hollow portion 35 can be replaced by foaming rubber or resin as necessary. Reference numeral 32 denotes a sealing material that prevents rainwater or the like from entering the vehicle, and is formed of foamed rubber or the like.
[0036]
3 shows a cross section AA of the slide door in FIG. 1, the cross section BB of the sunroof in FIG. 1 and the cross section DD of the back door in FIG. To do.
[0037]
FIG. 4 is a partially broken perspective view showing details of the piezoelectric sensor 34. It is composed of a center electrode 36 and an outer electrode 37 as signal derivation electrodes, a composite piezoelectric material 38 between both electrodes, and a covering layer 39, and has a cable shape with an outer diameter of about 2.5 mm. is there.
[0038]
The composite piezoelectric material 38 is formed using a composite piezoelectric material obtained by mixing chlorinated polyethylene and piezoelectric ceramic powder. The piezoelectric sensor 34 is highly sensitive, durable, and has high production efficiency. In combination with the above-described configuration of the protector 33, the piezoelectric sensor 34 fully performs its original function and can perform good contact detection.
[0039]
FIG. 5 shows a cross section CC of the power window in FIG. The window frame 40 has a glass seal 41. The pressure-sensitive sensor 34 is inserted into a protector 42 made of an elastic body such as rubber or a foamed resin member, and is disposed on the window frame 40 via the protector 42. A pressure-sensitive contact type pressure-sensitive switch in which a plurality of electrodes are opposed to each other with a gap may be used as a pressure-sensitive sensor. However, since the window frame 40 usually has a bent portion, the electrodes are in contact with each other at the bent portion. And erroneous detection may occur. Therefore, it is preferable to use a contactless piezoelectric sensor as in this embodiment rather than a pressure sensitive contact type pressure sensitive switch. In addition, since the pressure-sensitive contact type pressure-sensitive switch has a band shape, the direction of pressure that can be detected is limited. However, in the case of the coaxial piezoelectric sensor as in this embodiment, the direction of pressure that can be detected is limited. Therefore, pressure from any direction can be detected, which is preferable as pressure-sensitive means for detecting pinching.
[0040]
The rubber used for the protector 42 is selected in consideration of heat resistance and cold resistance. Specifically, it is preferable to select a rubber that has a small decrease in flexibility at −30 ° C. to 85 ° C. As such rubber, for example, ethylene propylene rubber (EPDM), chloroprene rubber (CR), butyl rubber (IIR), silicon rubber (Si), thermoplastic elastomer, etc. may be used. The protector 42 has a hollow portion 43.
[0041]
The window glass 44 slides up and down by a driving unit 45 connected to the lower end. And it contacts the glass seal 41 at the closed position. The piezoelectric sensor 34 and the window glass 44 are disposed via the gap D and do not come into contact with each other by normal opening and closing.
[0042]
FIG. 6 is an external view of the piezoelectric sensor 34 provided with the judging means 46. In FIG. 6, a disconnection detecting resistor 47 is built in one end of the piezoelectric sensor 34. The disconnection detecting resistor 47 is connected between the center electrode and the outer electrode of the piezoelectric sensor 33. The disconnection detecting resistor 47 also serves as a discharge unit that discharges electric charges generated in the piezoelectric sensor 34 by the pyroelectric effect.
[0043]
The piezoelectric sensor 34 is directly connected to the determination circuit 46, and the piezoelectric sensor 34 and the determination circuit 46 are integrated. 48 is a power supply cable and a detection signal output cable, and 49 is a connector. When the piezoelectric sensor 34 is disposed in the protector 42, a disconnection detecting resistor 47 is built in the end portion, and after the piezoelectric sensor 34 is inserted into the protector 42, the piezoelectric sensor 34 and the determination circuit 46 are connected and integrated. To do.
[0044]
When the protector 42 is formed by an extrusion molding method, the piezoelectric sensor 34 is extruded simultaneously and then a breakage detecting resistor 47 is built in the end portion, and the piezoelectric sensor 34 and the determination circuit 46 are integrated. Also good.
[0045]
In addition, a method for connecting a plurality of sensor units in FIG. 6 will be described. The connector 49 is connected to the determination circuit 46 at the next stage. Details of the determination circuit 46 will be described with reference to FIG.
[0046]
FIG. 7 is a block diagram showing the configuration of the control means in the slide door. The door / piezoelectric sensor 34a that detects the pinching of the sliding door is connected to the determination circuit 46a by connecting the disconnection detecting resistor 47a to the tip. The determination circuit 46a is configured as follows. First, the output signal from the door / piezoelectric sensor 34a is input to the low-pass filter 51a, and only the frequency band for detecting the fall is selectively sent to the next-stage amplifier 52a. Normally, the signal of the sensor is several Hz, and the output exceeding 10 Hz is discarded as noise. The low-pass filter 52a removes vibrations caused by driving of the automobile and engine idling. The frequency of such noise is usually about a dozen Hz to a few hundred Hz.
[0047]
In the amplifier 52a, the sensor output is normally several tens to several hundreds mV, so that it is amplified by several tens to 100 times. Since the low-pass filter 51a is passed, the noise component is not amplified and only the original signal is amplified.
[0048]
The amplified signal is then compared with a predetermined reference value by the comparator 53a. If this is exceeded, the digitalized pinching / contact detection signal is output for the first time.
[0049]
This sandwiching / contact detection signal is connected to one input terminal of two AND gates 54a in this embodiment. The other input terminal of the AND gate 54a is connected to address information 55a formed by a switch or a jumper line. In this embodiment, “01” is set. That is, with this configuration, only when the pinching / contact detection signal becomes H level, the address information appears at the output terminal of the AND gate 54a and is transmitted to the determination circuit 46a of the sensor unit at the next stage via the connector 49a. .
[0050]
In the present embodiment, four wires are connected to the connector 49a. Two lines are power supply lines for supplying power to the determination circuit 46a, and two lines are address information that has undergone AND processing with sensor determination outputs.
[0051]
On the other hand, the determination circuit and the like of the piezoelectric sensor provided in the power window are configured in exactly the same way. The window / piezoelectric sensor 34b for detecting pinching in the power window is connected to the determination circuit 46b by connecting the disconnection detecting resistor 47b to the tip. The determination circuit 46b is configured as follows. First, the output signal from the door / piezoelectric sensor 34b is input to the low-pass filter 51b, and only the frequency band for detecting the fall is selectively sent to the next-stage amplifier 52b.
[0052]
In the amplifier 52b, the sensor output is normally several tens to several hundreds mV, so that it is amplified by several tens to 100 times. Since it passes through the low-pass filter 51b, the noise component is not amplified and only the original signal is amplified.
[0053]
The amplified signal is then compared with a predetermined reference value by a comparator 53b. If this is exceeded, the digitalized pinching / contact detection signal is output for the first time.
[0054]
This sandwiching / contact detection signal is connected to one input terminal of two AND gates 54b in this embodiment. The address information 55b formed by a switch or a jumper line is connected to the other input terminal of the AND gate 54b. In this embodiment, “10” is set. That is, with this configuration, only when the pinching / contact detection signal becomes H level, the address information appears at the output terminal of the AND gate 54b and is transmitted to the controller 56 via the connector 49b.
[0055]
In the present embodiment, four wires are connected to the connector 49b. Two lines are power supply lines for supplying power to the determination circuit 46b, and two lines are address information that has undergone AND processing with sensor determination outputs.
[0056]
The control unit 56 controls all of the inside of the slide door, and includes a slide door switch 57 provided in the driver's seat, the slide door main body or the engine key, and a power window switch 58 provided in the driver's seat or the slide door main body. An operation command related to opening / closing is accepted.
[0057]
If these opening / closing requests are appropriate, the sliding door motor 60 is controlled via the driver 59, the closer motor 61 is controlled via the driver 61, and the power window motor 63 is controlled via the driver 62. The slide door motor 60 opens and closes the slide door body by forward / reverse control. The closer motor 61 is driven so that the sliding door main body is pulled into the closed position by the forward / reverse rotation control and locked or unlocked so that the door can be opened. The power window motor 63 drives the window glass to open and close by forward / reverse control.
[0058]
Then, when the door / piezoelectric sensor 34a or the window / piezoelectric sensor 34b detects that the moving body is caught or contacted, the control unit 56 stops these motors or operates them in the door opening direction, To be safe.
[0059]
In the present embodiment, when both the sliding door and the power window are sandwiched at the same time, since the outputs of the AND gates 54a and 54b are wired-or, that is, logically ORed, as the address information, "11" is output. The Therefore, it is possible to detect that the both sides are caught, but such a case is extremely rare, and it is safer to prohibit the opening and closing of the power window while the sliding door is moving. These programs can be freely configured by the control unit 56 as appropriate.
[0060]
With this configuration, the control unit detects address information by searching for address information in spite of the use of multiple flexible and cable-like piezoelectric sensors for pinching and contact in doors and windows. And take appropriate action. Even if the number of sensors increases, the number of bits of address information may be increased, and the system can be configured so that the control unit handles a single sensor. In addition, the number of signal lines can be reduced, or the length of the signal lines can be reduced, and the resistance to cost and noise is greatly improved.
[0061]
In the present embodiment, the present invention is applied to an automobile. However, the present invention is not limited to this. For example, a long detection device of several tens of meters that detects a fall from a station platform, a fence, etc. The present invention can also be applied to a security system that detects a suspicious person who is trying to get over the network. In this case, it is possible to recognize a place where a fall or intrusion occurs with a small number of signal lines, which is useful.
[0062]
(Example 2)
FIG. 10 shows the back door back surface (inside the vehicle) of the contact / pinch detection device according to the second embodiment of the present invention. The basic configuration and operation are the same as those of the first embodiment, and only the differences will be described.
[0063]
The second embodiment is different from the first embodiment in that a plurality of sensor units, that is, four units in this embodiment are arranged on the back door.
[0064]
The back door 23 is provided with a power window 65, and a piezoelectric sensor is disposed inside the window frame 66 (not shown). Further, protectors 67a, 67b, 67c, and 67d are arranged on the outer periphery of the back door 23, and four piezoelectric sensors are independently incorporated. The reason why these sensors, which are provided to prevent the possibility of pinching or contact by the motor driving of the back door, is divided and arranged is that the back door 23 is large and the entire circumference is considerably large, and there is a tail lamp. For this reason, the reason is that there are large sharp cuts on the left and right sides.
[0065]
If a flexible and cable-shaped piezoelectric sensor is used, in principle, it is possible to arrange the entire periphery of the back door 23 with a single sensor. Handling huge parts is awkward and impractical. Therefore, the sensor may be divided into several units. In this embodiment, there is no sensor at the lower end of the back door 23. However, foaming rubber is disposed here, and it is considered that there is no danger even if a part of the human body is sandwiched.
[0066]
In such a configuration, the address “01” is assigned to the sensor of the window frame, and the same address “10” is assigned to the four sensors around the back door 23. These four sensors are used to control the motor that drives the back door to open and close, and even if different addresses are given to each sensor, only one motor is controlled. Therefore, by assigning the same address information to the same moving body (backdoor in this example), the number of bits of the signal line of the address information can be reduced.
[0067]
【The invention's effect】
As described above, according to the contact / pinch detection device according to claim 1 of the present invention, the control means can handle a plurality of sensor means for detecting pinching or contact of a person or an object as a single unit, The system configuration is simple. High noise resistance, low cost, etc. can be realized.
[0068]
Further, the contact / pinch detection device according to claim 2 has a configuration in which each sensor means includes address information for specifying this, and the control means can specify at which part the pinch or contact has occurred and can take appropriate measures. Can be taken.
[0069]
Further, the contact / pinch detection device according to claim 3 has a configuration in which each sensor means is arranged on a moving body such as a power slide door, a power back door, and a power window or a vehicle body facing the same, and is incorporated in an automobile. A safe power drive door or window can be realized.
[0070]
According to a fourth aspect of the present invention, a contact / pinch detection device uses a flexible, cable-shaped piezoelectric sensor as sensor means, and reliably detects the generated contact / pinch by vibration.
[0071]
According to a fifth aspect of the present invention, there is provided a contact / pinch detection device including independent control means for monitoring sensor means for each door body, and address information for each sensor means disposed in a plurality of moving bodies belonging to the door body. The address information can be simplified.
[0072]
Further, the contact / pinch detection device according to claim 6 is configured to provide the same address information to the same moving body when the plurality of sensor means are arranged in the plurality of moving bodies belonging to a certain door body. , Address information can be simplified.
[Brief description of the drawings]
FIG. 1 is a perspective view of an automobile equipped with a contact / pinch detection device according to a first embodiment of the present invention.
FIG. 2 is a rear perspective view of an automobile equipped with the same device.
FIG. 3 is a sensor mounting cross-sectional view of a sliding door portion in the apparatus.
FIG. 4 is a perspective view showing an external appearance of a sensor in the apparatus.
FIG. 5 is a sensor mounting cross-sectional view of a power window portion in the apparatus.
FIG. 6 is a perspective view showing a sensor configuration and connection state in the apparatus.
FIG. 7 is a block diagram showing a control unit in the apparatus.
FIG. 8 is a perspective view of an automobile equipped with a conventional contact / pinch detection device.
FIG. 9 is a block diagram showing sensor connections of a conventional contact / pinch detection device.
FIG. 10 is a rear view (inside of the vehicle) of a back door of an automobile equipped with a contact / pinch detection device according to Embodiment 2 of the present invention.
[Explanation of symbols]
34 Piezoelectric sensor
49 Connection means
55 Address information
56 Control means

Claims (6)

A contact means comprising a sensor means for detecting pinching or contact of a person or an object and a connecting means for connecting a plurality of the sensor means, and comprising a single control means for monitoring the sensor means. Pinch detection device. 2. The contact / pinch detection device according to claim 1, wherein each sensor means includes address information for specifying the sensor means. 3. The contact / pinch detection device according to claim 1, wherein each sensor means is disposed on a movable body such as a power slide door, a power back door, and a power window or a vehicle body facing the sensor body and is incorporated in an automobile. The contact / pinch detection device according to any one of claims 1 to 3, wherein a flexible and cable-shaped piezoelectric sensor is used as the sensor means. 3. The contact / pinch detection device according to claim 2, further comprising independent control means for monitoring the sensor means for each door body, wherein address information is assigned to each sensor means disposed in a plurality of moving bodies belonging to the door body. 6. The contact / pinch detection device according to claim 2, wherein the same address information is assigned to the same moving body when the plurality of sensor means are disposed on the plurality of moving bodies belonging to a certain door body.

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