JP2006300924A - Switching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switching device capable of preventing an erroneous operation of a capacitance sensor. <P>SOLUTION: An electric slide door device is provided with a door panel 4 opening/closing an entrance formed on a vehicle body. An end part 4a at the front side in the moving direction in a closing operation of the door panel 4 is provided with a foreign body detection sensor 41. The foreign body detection sensor 41 is provided with a sensor main body 44 forming a coaxial cable shape. The sensor main body 44 is provided with a sensor electrode 53. The foreign body detection sensor 41 detects an object to be detected on the basis of the variation of capacitance between the sensor electrode 53 and a conductive foreign body 110 adjacent the sensor electrode 53. A guard electrode 102 is provided between the door panel 4 and the sensor electrode 53. The guard electrode 102 is electrically connected to the sensor electrode 53, and is kept at the same voltage as that of the sensor electrode 53. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an opening / closing device.

  2. Description of the Related Art Conventionally, some vehicles are provided with an opening / closing device that slides (opens / closes) a door panel along the front-rear direction of the vehicle by a driving force such as a motor. This opening / closing device is provided with a detection sensor that detects the presence of a foreign object between the door panel and the vehicle body during the closing operation. As this detection sensor, for example, one disclosed in Patent Document 1 is used.

The detection sensor disclosed in Patent Document 1 includes a sensor electrode for detecting a foreign object between a door panel and a vehicle body by a change in capacitance. A sensor electrode is arrange | positioned at the front-end part of a door panel, for example. And if a foreign material exists between a door panel and a vehicle body during the closing operation of a door panel, the electrostatic capacitance in a sensor electrode will change. When the control device connected to the sensor electrode detects this change in capacitance, the control device determines that there is a foreign object between the door panel and the vehicle body, and moves the door panel to the fully open position by the driving force of a motor or the like. Let Thus, this pinch detection sensor detects the foreign material which exists between a door panel and a vehicle body by non-contact.
JP 2004-257788 A

  However, in the detection sensor disclosed in Patent Document 1, stray capacitance is generated between the sensor electrode and the door panel. Further, when a foreign object comes close to the door panel, stray capacitance is generated between the door panel and the foreign object. These stray capacitances are coupled through a door panel. For this reason, when a foreign object approaches the door, the capacitance between the sensor electrode sandwiching the door panel and the foreign object changes. The control device detects this change in capacitance and determines that there is a foreign object between the door panel and the vehicle body. In other words, in the pinching detection sensor described in Patent Document 1, even if there is no foreign object between the door panel and the vehicle body, the control device only causes the foreign object to approach the door panel from the outside of the door panel. A malfunction that a change in capacitance is detected may occur. Therefore, during the closing operation of the door panel, there is a problem that the door panel stops or is moved to the fully opened position only by a person approaching the door panel from the outside of the door panel.

  By the way, in order to solve the above problem, it is conceivable to use a contact type sensor using a pressure sensitive switch or the like as the detection sensor. However, in a contact-type sensor using a pressure sensitive switch or the like, the sensor comes into contact with a foreign object between the door panel and the vehicle body, and the presence of the foreign object is detected only when the sensor is deformed by pressing the sensor against the foreign object. Is done. Therefore, there is a problem that it takes time until the door panel is opened after the foreign object is caught. Further, a pressing force is applied to the foreign matter from the door panel provided with the sensor until the door panel is opened after the foreign matter is inserted. For these reasons, it is desirable to use a capacitance type sensor that can detect foreign matter between the door panel and the vehicle body in a non-contact manner as the detection sensor.

  The present invention has been made in view of such circumstances, and an object thereof is to provide an opening / closing device capable of preventing malfunction of a capacitance type detection sensor.

  In order to solve the above-mentioned problem, the invention according to claim 1 is an open / close device including a conductive moving body that opens and closes an opening formed in a conductive fixed body. A sensor electrode is provided on either the peripheral edge of the moving body on the front side in the traveling direction or the peripheral edge of the opening facing the moving body in the traveling direction when the moving body is closed. And a detection sensor for detecting the detection object based on a change in capacitance between the sensor electrode and a conductive detection object adjacent to the sensor electrode, and the detection sensor is disposed. A guard electrode that is provided between one of the fixed body and the movable body and the sensor electrode and is electrically connected to the sensor electrode and maintained at the same voltage or a constant voltage as the sensor electrode. And with.

  According to a second aspect of the present invention, in the switchgear according to the first aspect of the present invention, a support member for fixing the detection sensor to any one of the fixed body and the movable body is provided, and the guard electrode is the support body It is provided on the member.

  According to a third aspect of the present invention, in the opening / closing apparatus according to the second aspect, the support member is fixed to any one of the holding portion that holds the detection sensor, the fixed body, and the movable body. The guard electrode is provided in the holding part.

  According to a fourth aspect of the present invention, in the switchgear according to the third aspect, the support member is made of an insulating resin material, the guard electrode is made of a conductive resin material, and is integrally formed with the support member. It becomes.

  According to a fifth aspect of the present invention, in the switchgear according to the second aspect, the support member includes a holding portion that holds the detection sensor and a reinforcing bone member that is formed of a conductive material. And an attachment part fixed to one of the fixed body and the movable body, and the guard electrode is made of the bone member protruding outside the attachment part.

  According to a sixth aspect of the present invention, in the switchgear according to any one of the second to fifth aspects, the sensor electrode and the guard electrode are the same while being electrically connected to the guard electrode. A connection member that is electrically connected to a circuit device that maintains a voltage or a constant voltage is provided.

  According to a seventh aspect of the present invention, in the switchgear according to the sixth aspect, a terminal processing unit having the circuit device to which the sensor electrode is electrically connected is provided at an end of the detection sensor. The connection member is provided on one of the terminal processing unit and the support member, and when the detection sensor is supported by the support member, the connection member is impinged on the other of the terminal processing unit and the support member. It is a needle part.

  According to an eighth aspect of the present invention, in the switchgear according to any one of the first to seventh aspects, the detection sensor includes the sensor electrode and a gap between the sensor electrode and the detected object. A non-contact detection unit that detects the detection object based on a change in capacitance of the sensor, and a conductor that forms a pair, and changes according to a pressing force applied from the detection object by contact of the detection object A contact detection unit that detects the object to be detected based on a change in resistance or voltage between conductors, and the non-contact detection unit and the contact detection unit are arranged coaxially.

  According to a ninth aspect of the present invention, in the opening / closing device according to the eighth aspect, the detection sensor is disposed at the peripheral portion of the movable body on the front side in the traveling direction when the movable body is closed. It protrudes from the periphery of the moving body to the front side in the traveling direction when the moving body is closed.

According to a tenth aspect of the present invention, in the switchgear according to any one of the first to ninth aspects, an insulating film is formed on the outer surface of the guard electrode.
(Function)
According to the first aspect of the present invention, the guard electrode is provided between the sensor electrode and one of the fixed body and the moving body in which the detection sensor is disposed. For this reason, stray capacitance is generated between the guard electrode and either the fixed body or the moving body in which the detection sensor is disposed, and stray capacitance is generated between the guard electrode and the sensor electrode. Combined in parallel. Here, when the detected object comes close to either the fixed body or the moving body where the detection sensor is arranged, either the fixed object or the moving body where the detected object and the detection sensor are arranged close to each other Stray capacitance occurs between The stray capacitance is coupled in parallel with the stray capacitance generated between the guard electrode and either the fixed body or the moving body in which the detection sensor is disposed, and thus the guard having the stray capacitance between the sensor electrode and the stray capacitance. The capacitance changes between the electrode and the object to be detected. However, in the present invention, since the voltage of the guard electrode is maintained to be the same or a constant ratio as the voltage of the sensor electrode, even if the capacitance changes between the object to be detected and the guard electrode, This change in capacitance is prevented from affecting the capacitance detected by the sensor electrode via the stray capacitance generated between the guard electrode and the sensor electrode. Therefore, it is possible to prevent a malfunction in which a change in capacitance is detected by the sensor electrode only when an object to be detected approaches only one of the fixed body and the moving body in which the detection sensor is provided. it can. That is, malfunction of the capacitance type detection sensor can be prevented.

  In addition, a guard electrode is provided between one of the fixed body and the moving body on which the detection sensor is disposed and the detection sensor, and the voltage of the guard electrode is equal to the voltage of the sensor electrode or a constant ratio. The malfunction of the capacitance type detection sensor can be prevented with a simple configuration that only maintains the voltage.

  According to invention of Claim 2, the guard electrode is provided in the support member. Therefore, the guard electrode is easily fixed to either the fixed body or the moving body by the support member together with the detection sensor.

  According to the third aspect of the present invention, the guard electrode is provided in the holding portion that holds the detection sensor. Therefore, the guard electrode is easily disposed between the sensor electrode and any one of the fixed body and the moving body on which the detection sensor is disposed. Further, since the guard electrode is disposed at a position close to the sensor electrode, electrical connection between the sensor electrode and the guard electrode is facilitated.

  According to the invention described in claim 4, since the support member is made of an insulating resin material and the guard electrode formed integrally with the support member is made of a conductive resin material, the support member and the guard electrode can be easily formed. Extruded. Further, since the support member is made of an insulating resin material, it is easily insulated from either the fixed body or the movable body where the detection sensor is disposed.

  According to the fifth aspect of the present invention, the guard electrode is easily provided by projecting a part of the bone member that reinforces the attachment portion to the outside of the attachment portion to form the guard electrode. In addition, since the guard electrode is formed by using a part of the bone member that reinforces the attachment portion, an increase in the number of parts is prevented.

According to the sixth aspect of the present invention, the guard electrode and the circuit device are easily connected by the connecting member.
According to the seventh aspect of the present invention, the needle portion provided on either the terminal processing unit or the support member has a simple configuration in which only the other of the terminal processing unit and the support member is stuck. The guard electrode and the circuit device are electrically connected.

  According to the eighth aspect of the invention, since the non-contact detection unit and the contact detection unit are arranged coaxially, even if the detection sensor is arranged in a state of being curved in the axial direction, Sensor functional degradation is prevented.

  According to the ninth aspect of the present invention, the detection sensor protrudes from the periphery of the moving body to the front side in the traveling direction during the closing operation of the moving body. Therefore, when an object to be detected exists between the moving body and the fixed body, the detection sensor contacts the object to be detected before the moving body. Therefore, it becomes possible to detect the detection object existing between the moving body and the fixed body earlier.

  According to the tenth aspect of the present invention, the insulating film prevents the detected object or the like from coming into direct contact with the guard electrode.

  According to the present invention, it is possible to provide a switchgear in which malfunction of a capacitance type detection sensor is prevented.

Hereinafter, an embodiment in which the present invention is embodied in an electric slide door device for a vehicle will be described with reference to the drawings.
FIG.1 and FIG.2 is a perspective view which shows the vehicle 2 provided with the electric slide door apparatus 1 of this embodiment. The electric slide door device 1 includes a vehicle body 3, a door panel 4, an operation mechanism 5, a drive mechanism 6, a foreign object detection unit 7, and a control circuit device 8. The vehicle body 3 and the door panel 4 are made of a conductive metal. On the left side surface of the vehicle body 3, a doorway 9 that is opened and closed by the door panel 4 is formed. The door panel 4 is formed in a substantially rectangular shape corresponding to the entrance / exit 9 and is attached to the vehicle body 3 via the operating mechanism 5 so as to be movable in the front-rear direction in order to open and close the entrance / exit 9.

  As shown in FIGS. 2 and 3, the operating mechanism 5 includes an upper rail 11, a lower rail 12, a center rail 13 provided on the vehicle body 3 side, and an upper arm 15, a lower arm 16, a center arm provided on the door panel 4 side. 17.

  The upper rail 11 and the lower rail 12 are respectively provided at an upper part and a lower part of the entrance / exit 9 in the vehicle 2 and extend along a substantially front-rear direction of the vehicle 2. The center rail 13 is provided at a substantially central portion of a portion of the vehicle 2 located behind the entrance / exit 9 and extends along a substantially front-rear direction of the vehicle 2. Each of these rails 11 to 13 is formed along the front-rear direction of the vehicle 2 from the rear end toward the front end side, and is curved so that the front end side faces the vehicle interior side from the middle.

  The arms 15 to 17 are fixed at predetermined positions on the upper, lower, and central portions of the door panel 4 on the vehicle interior side. The upper arm 15 is connected to the upper rail 11, the lower arm 16 is connected to the lower rail 12, the center arm 17 is connected to the center rail 13, and the arms 15 to 17 are connected to the rails 11 to 13, respectively. The vehicle 2 can be moved in the front-rear direction.

  As shown in FIGS. 1 and 3, the drive mechanism 6 includes an endless belt 21, a slide actuator 22, a closer actuator 23, and a position detection device 24 (see FIG. 7). Be controlled. The control circuit device 8 is disposed inside the door panel 4 and is supplied with electric power from a battery 25 (see FIG. 7) of the vehicle 2.

  As shown in FIG. 3, a drive pulley 26 and a plurality of driven pulleys 27 that rotate around the vertical axis of the vehicle 2 are provided at both ends in the vehicle width direction of the lower rail 12. The endless belt 21 is wound around the driven pulley 27. The end of the lower arm 16 is fixed to the endless belt 21. When the endless belt 21 is rotated, the lower arm 16 moves along the lower rail 12, and the door panel 4 is slid in the front-rear direction.

  As shown in FIG. 1, a slide actuator 22 is connected to the drive pulley 26. The slide actuator 22 includes a slide motor 28 (see FIG. 7) and a speed reduction mechanism (not shown) that decelerates the rotation of the slide motor 28. The slide motor 28 is rotated in accordance with a drive signal input from the control circuit device 8. The rotation of the slide motor 28 is decelerated by a reduction mechanism and transmitted from the output shaft (not shown) of the slide actuator 22 to the drive pulley 26.

  The closer actuator 23 is disposed inside the door panel 4. The closer actuator 23 includes a closer motor 29 (see FIG. 7) and a speed reduction mechanism (not shown) that reduces the rotation of the closer motor 29. Here, the door panel 4 is provided with a locking mechanism (not shown) such as a latch. This locking mechanism is used to fix the door panel 4 so that it cannot move relative to the vehicle body 3 when the door panel 4 is in a state in which the doorway 9 is closed (a state in which the door panel 4 is disposed at the fully closed position). belongs to. The closer motor 29 is rotated in response to a drive signal input from the control circuit device 8 to operate the lock mechanism and move the door panel 4 to a position where the lock can be locked by the lock mechanism.

  As shown in FIG. 7, the position detection device 24 includes a rotation shaft (not shown) of the slide motor 28, an output shaft (not shown) of the slide actuator 22, and a rotation shaft of the slide motor 28 and an output shaft of the slide actuator 22. Are provided corresponding to any of the reduction gears (not shown) constituting the reduction mechanism. Then, the position detection device 24 detects the rotation amount of any one of the rotation shaft, the output shaft, and the reduction gear from the time when the slide motor 28 starts driving. The position detection device 24 outputs a position detection signal corresponding to the detected rotation amount to the control circuit device 8. The control circuit device 8 detects the sliding amount of the door panel 4, that is, the position of the door panel 4 (lower arm 16) based on the position detection signal input from the position detection device 24. The position detection device 24 includes, for example, a magnet that rotates together with any one of the rotation shaft, the output shaft, and the reduction gear, and a Hall element that is disposed to face the magnet.

  An operation switch 31 is electrically connected to the control circuit device 8. The operation switch 31 is disposed on the dashboard 32 (see FIG. 1). When the operation switch 31 is operated by the occupant to release the entrance / exit 9, an opening signal for sliding the door panel 4 to input the entrance / exit 9 is released from the operation switch 31 to the control circuit device 8. The When the opening signal is input, the control circuit device 8 outputs a driving signal for opening the door panel 4 to the slide motor 28.

  Further, when the operation switch 31 is operated by a passenger so as to close the entrance / exit 9, a closing signal for sliding the door panel 4 to close the entrance / exit 9 from the operation switch 31 to the control circuit device 8 is given. Entered. When the close signal is input, the control circuit device 8 outputs a drive signal for closing the door panel 4 to the slide motor 28. When the slide motor 28 is driven and the door panel 4 is closed, and the half latch detection means (not shown) detects that the lock mechanism is in the half latch state, the control circuit device 8 causes the closer motor 29 to A drive signal is output.

  As shown in FIG. 4, the foreign object detection unit 7 includes a foreign object detection sensor 41 and a protector 42. The foreign object detection unit 7 is for detecting the presence of a foreign object (detected object) between the door panel 4 and the vehicle body 3 when the door panel 4 is slid in the direction of closing the entrance 9. .

  As shown in FIGS. 6A and 7, the foreign object detection sensor 41 includes a sensor main body 44, a capacitance detection device 45, and a current detection element 46, and is controlled by the control circuit device 8. .

  As shown in FIG. 6A, the sensor main body 44 is disposed along the peripheral edge on the front side in the traveling direction when the door panel 4 is closed, that is, along the front edge 4 a of the vehicle 2 in the door panel 4. ing. The sensor body 44 has a coaxial cable shape. Specifically, as shown in FIG. 6B, the sensor main body 44 includes a cylindrical core electrode 51 made of a conductor. A piezoelectric rubber 52 is provided on the outer periphery of the core electrode 51 so as to be coaxial with the core electrode 51. A cylindrical sensor electrode 53 made of a conductor is provided on the outer periphery of the piezoelectric rubber 52 so as to be coaxial with the core electrode 51, and an outer skin 54 made of an insulator is provided on the outer periphery of the sensor electrode 53. Yes.

  As shown in FIG. 4, one end of the sensor body 44 (the upper end in the present embodiment) is molded with resin. Further, as shown in FIG. 5, a terminal processing unit 61 is integrally provided at the other end portion (the lower end portion in the present embodiment) of the sensor main body 44. As shown in FIG. 8, the terminal processing unit 61 includes a plate member 62. The plate member 62 has a rectangular shape whose width is equal to or slightly wider than the diameter of the sensor body 44. A plurality of metal pieces 63 to 65 are disposed on the plate member 62. The other end of the electric wire 66 whose one end is connected to the sensor electrode 53 is connected to the metal piece 63, and the other end of the lead wire 67 whose one end is connected to the capacitance detection device 45 is the same metal piece 63. It is connected to the. The metal piece 64 is connected to the other end of an electric wire 68 having one end connected to the core electrode 51 and the other end of a lead wire 69 having one end connected to the ground GND.

  Further, a buffer amplifier 71 is disposed on the plate member 62. The buffer amplifier 71 is supplied with power through a lead wire 72 and is connected to the ground GND through the lead wire 69. An input terminal 74 of the buffer amplifier 71 is connected to a metal piece 65 disposed on the plate member 62, and an output terminal 75 of the buffer amplifier 71 is connected to a terminal 76 provided on the outer peripheral surface of the terminal processing unit 61. ing. The metal piece 65 is connected to the other end of an electric wire 77 having one end connected to the sensor electrode 53. The buffer amplifier 71 is connected to the other end of a lead wire 78 having one end connected to the current detection element 46, and the sensor electrode 53 is electrically connected to the current detection element 46 via the buffer amplifier 71. Has been. As shown in FIG. 7, the capacitance detection device 45 and the current detection element 46 are electrically connected to the control circuit device 8. Further, a current is supplied to the sensor electrode 53 via the control circuit device 8.

  The ends of the electric wires 66, 68, 77 and the lead wires 67, 69 are connected to the metal pieces 63 to 65 by resistance welding or the like. The plate member 62 is resin-molded together with each member disposed on the plate member 62 and one end of the sensor main body 44.

  As shown in FIG. 7, the capacitance detection device 45 is a capacitance type sensor (non-contact detection unit) that detects, together with the sensor electrode 53, foreign matter existing between the door panel 4 and the vehicle body 3 in a non-contact manner. ). The capacitance detection device 45 is driven by the control circuit device 8 and detects a change in capacitance between the sensor electrode 53 and the ground (ground). A capacitance detection signal is output based on the change.

  The current detection element 46, together with the core electrode 51, the piezoelectric rubber 52, and the sensor electrode 53, comes into contact with a foreign object existing between the door panel 4 and the vehicle body 3 and detects the foreign object (contact detection unit). Is configured. The current detection element 46 is for detecting a current flowing between the sensor electrode 53 and the core electrode 51, and is disposed in the door panel 4. When a pressing force is applied to the sensor body 44 from the outside, that is, when a pressing force is applied to the piezoelectric rubber 52, the resistance value of the piezoelectric rubber 52 changes so that a current flows between the sensor electrode 53 and the core electrode 51. become. At this time, the current detection element 46 detects the current flowing between the sensor electrode 53 and the core electrode 51 and indicates to the control circuit device 8 that the current has flowed between the sensor electrode 53 and the core electrode 51. Outputs a current detection signal. Note that the configuration shown in FIG. 7 and the operation obtained from the configuration of FIG. 7 are examples, and may be changed as appropriate.

  As shown in FIG. 6A, the protector 42 is for holding the sensor main body 44 and fixing the sensor main body 44 to the door panel 4. The protector 42 includes an attachment portion 81 and a holding portion 82 formed integrally with the attachment portion 81. On the outer peripheral surface of the protector 42, an insulating film 83 is formed of silicon or the like.

  The attachment portion 81 is formed of an insulating resin material (including elastomer and rubber) and can be elastically deformed. The attachment portion 81 is formed such that the length in the longitudinal direction (the vertical direction of the vehicle 2) is substantially equal to the length in the axial direction of the sensor body 44. The attachment portion 81 includes a bone member 84 that reinforces the attachment portion 81 therein. The bone member 84 is made of a conductive material such as metal, and a plurality of U-shaped bone member main bodies 84a are arranged along the longitudinal direction of the attachment portion 81, and these bone member main bodies 84a are connected in the axial direction. It becomes. One end of an electric wire 85 (see FIG. 5) is electrically connected to the lower end portion of the bone member 84. And the attachment part 81 is provided with the attachment groove | channel 86 which extends along the longitudinal direction of the attachment part 81 inside the bone member main body 84a, and opens to the anti-holding part 82 side, and the shape seen from the axial direction is substantially. It is U-shaped. On the inner surface of the mounting groove 86, the two opposing surfaces 86a and 86b have a plurality of (two in each surface 86a and 86b in FIG. 6A) protruding toward the mutually opposing surfaces 86a and 86b. A clamping piece 87 is formed integrally with the mounting portion 81.

  Here, a bracket 91 is provided at an end of the door panel 4 on the front side of the vehicle 2. The bracket 91 is fixed to an inner plate 92 that constitutes the door panel 4. In the inner plate 92, a fixed portion 93 formed along the vehicle width direction is formed at an end portion on the front side of the vehicle 2, and an end portion of the vehicle 2 on the outer side of the vehicle interior of the fixed portion 93 is formed. An extending portion 94 extending toward the front side is formed. The extended portion 94 is covered with an end portion of the outer plate 95 on the front side of the vehicle 2. The bracket 91 is fixed on the fixing portion 93 and includes a bracket body 96 extending toward the front side of the vehicle 2. The length of the bracket body 96 in the front-rear direction of the vehicle 2 is shorter than the length of the extended portion 94 in the front-rear direction of the vehicle 2.

  The protector 42 is fixed to the door panel 4 by attaching the attachment portion 81 to the bracket 91 described above. That is, when the bracket body 96 is inserted into the mounting groove 86, the holding piece 87 is elastically deformed, and the holding piece 87 is directed toward the surfaces 86a and 86b facing the surfaces 86a and 86b on which the holding pieces 87 are formed. The bracket body 96 is pressed. Thus, the protector 42 is fixed to the bracket body 96 by the mounting portion 81 sandwiching the bracket body 96.

  The holding portion 82 has a cylindrical shape, and the length in the axial direction is equal to the length in the longitudinal direction of the mounting portion 81. The inner diameter of the insertion hole 101 formed by the inner peripheral surface of the holding portion 82 is slightly larger than the outer diameter of the sensor body 44. Such a holding part 82 includes a guard electrode 102 and a contact part 103.

  The guard electrode 102 is made of a conductive resin material (including elastomer and rubber) and can be elastically deformed. The guard electrode 102 is formed integrally with a portion opposite to the U-shaped opening in the mounting portion 81 having a substantially U shape, and is in contact with the bone member 84 of the mounting portion 81. The shape of the guard electrode 102 viewed from the axial direction of the holding portion 82 has an arc shape that opens to the side opposite to the attachment portion 81. An end surface 102 a on the vehicle exterior side (outer plate 95 side) of the guard electrode 102 is located on the front side of the vehicle 2 with respect to the front end 4 b (end on the front side of the vehicle 2) of the door panel 4. Further, in the guard electrode 102, the end surface 102b on the vehicle inner side (the far side from the outer plate 95) is formed so as to be located on the rear side of the vehicle 2 with respect to the end surface 102a.

  The contact portion 103 is made of an insulating resin material (including elastomer and rubber) and can be elastically deformed. The contact portion 103 has an arcuate shape that opens to the guard electrode 102 when viewed from the axial direction of the holding portion 82, and is formed integrally with the guard electrode 102. That is, the contact portion 103 and the guard electrode 102 are integrally formed to form a substantially cylindrical holding portion 82.

  The protector 42 configured as described above is formed by extrusion molding. Then, the insulating film 83 is formed on the outer peripheral surface of the protector 42 excluding the inner peripheral surface of the insertion hole 101, so that the outer surface 102 c of the guard electrode 102 (the portion exposed to the outside of the protector 42) is formed by the insulating film 83. Covered. The sensor main body 44 is inserted into the holding portion 82 (insertion hole 101) of the protector 42. The sensor main body 44 is inserted into the insertion hole 101 from the end on the side where the terminal processing unit 61 is not provided. Then, as shown in FIG. 5, the electric wire 85 extending from the lower end of the protector 42 is screwed to the terminal 76 provided in the terminal processing unit 61. When the electric wire 85 is screwed to the terminal 76, the output terminal 75 of the buffer amplifier 71 and the bone member 84 are electrically connected, and the output terminal 75 of the buffer amplifier 71 and the guard electrode 102 are pulled. Electrically connected. That is, the sensor electrode 53 and the guard electrode 102 are electrically connected through the buffer amplifier 71. Electric power is supplied to the guard electrode 102 via the sensor electrode 53 and the buffer amplifier 71, and the guard electrode 102 is kept at the same voltage as the sensor electrode 53.

  The protector 42 is fixed to the bracket 91 in a state where the sensor main body 44 is inserted into the insertion hole 101. In a state where the sensor main body 44 is disposed on the door panel 4 via the protector 42, the sensor main body 44 protrudes toward the front side of the vehicle 2 from the front end 4 b of the door panel 4. Since the end surface 102a of the guard electrode 102 on the vehicle outer side (on the outer plate 95 side) is located on the front side of the vehicle 2 with respect to the front end 4b of the door panel 4, a part of the guard electrode 102 is disposed on the door panel 4 (outer side). Plate 95) and the sensor main body 44 (sensor electrode 53).

  In addition, since the guard electrode 102 is maintained at the same voltage as the sensor electrode 53, the capacitance between the guard electrode 102 and the foreign object 111 is changed by the foreign object 111 that is close to the sensor electrode 53 with the guard electrode 102 interposed therebetween. However, the change in capacitance does not affect the capacitance detected by the sensor electrode 53. Accordingly, a portion of the sensor electrode 53 that faces the guard electrode 102 in the radial direction becomes a dead zone. Conversely, a portion of the sensor electrode 53 that does not face the guard electrode 102 in the radial direction, that is, a portion of the sensor electrode 53 that faces the contact portion 103 in the radial direction detects a change in capacitance due to the proximity of the foreign material 110. It becomes a range (detection range A). Therefore, the guard electrode 102 is provided such that the detection range A is a range in which the foreign object 110 existing on the front side in the traveling direction when the door panel 4 is closed can be detected. In the present embodiment, the detection range A is mainly the portion of the door panel 4 on the front side of the vehicle 2.

Next, the operation of the foreign object detector 7 when the door panel 4 is closed will be described.
When a closing signal is input from the operation switch 31, the control circuit device 8 outputs a driving signal to the slide motor 28 to close the door panel 4. At the same time, the control circuit device 8 drives the foreign object detection sensor 41.

  When the conductive foreign material 110 enters the detection range A during the sliding movement of the door panel 4, the capacitance changes between the sensor electrode 53 and the foreign material 110. The capacitance detection device 45 detects the change in capacitance and outputs a capacitance detection signal to the control circuit device 8. When the capacitance detection signal is input, the control circuit device 8 determines that the foreign material 110 exists between the door panel 4 and the vehicle body 3 and outputs a stop signal to the slide motor 28 to stop the door panel 4. . Then, the slide motor 28 is stopped by the stop signal, and the door panel 4 is stopped.

  At this time, a part of the guard electrode 102 is disposed between the door panel 4 (outer plate 95) and the sensor body 44 (sensor electrode 53). Therefore, a stray capacitance C1 is generated between the door panel 4 and the guard electrode 102, a stray capacitance C2 is generated between the guard electrode 102 and the sensor electrode 53, and the stray capacitance C1 and the stray capacitance C2 are coupled in parallel. . Here, when the foreign matter 111 approaches the door panel 4 from the outside of the door panel 4, a stray capacitance C <b> 3 is generated between the close foreign matter 111 and the door panel 4. Since the stray capacitance C3 is coupled in parallel with the stray capacitance C1 generated between the door panel 4 and the guard electrode 102, the stray capacitance C3 has a stray capacitance C2 between the sensor electrode 53 and the foreign object 111. The capacitance changes. However, in this embodiment, the voltage of the guard electrode 102 is maintained to be the same voltage as the voltage of the sensor electrode 53. Therefore, even if the capacitance changes between the foreign matter 111 and the guard electrode 102, the change in capacitance is caused by the sensor electrode 53 via the stray capacitance C 2 generated between the guard electrode 102 and the sensor electrode 53. It is possible to prevent the capacitance detected at the point from being affected. As a result, the foreign object 111 is prevented from being erroneously determined to be present between the door panel 4 and the vehicle body 3 only by the foreign object 111 approaching the door panel 4 from the outside of the door panel 4.

  On the other hand, when the foreign object 110 is sandwiched between the door panel 4 and the vehicle body 3 (the entrance / exit 9) during the sliding movement of the door panel 4, or when the foreign object 110 contacts the front end 4a of the vehicle 2 in the door panel 4, The holding portion 82 of the protector 42 is elastically deformed and a pressing force is applied to the sensor main body 44 from the foreign matter 110. Due to this pressing force, the piezoelectric rubber 52 is deformed to change the resistance value of the piezoelectric rubber 52, and a current flows between the sensor electrode 53 and the core electrode 51. The current detection element 46 detects the current flowing between the sensor electrode 53 and the core electrode 51 and outputs a current detection signal to the control circuit device 8. When the current detection signal is input, the control circuit device 8 determines that the foreign object 110 is sandwiched between the door panel 4 and the vehicle body 3 and sends a drive signal to the slide motor 28 to move the door panel 4 to the fully open position. Output. When the drive signal is input, the slide motor 28 is driven in a direction to open the door panel 4, and the door panel 4 is slid to the fully open position.

  The control circuit device 8 detects the position of the door panel 4 (lower arm 16) based on the position detection signal input from the position detection device 24. When the control circuit device 8 detects that the door panel 4 has been slid to a position that is a predetermined distance (for example, 3 to 5 cm to the fully closed position) to the fully closed position, the electrostatic capacitance detection device 45 performs electrostatic capacitance. Even if a capacitance detection signal is input, the capacitance detection signal is invalidated. Then, the control circuit device 8 detects the foreign object 110 by validating only the current detection signal input from the current detection element 46.

As described above, according to the present embodiment, the following actions and effects are obtained.
(1) A guard electrode 102 is disposed between the sensor body 44 and the door panel 4. The guard electrode 102 is kept at the same voltage as the sensor electrode 53 by the buffer amplifier 71. Therefore, a portion of the sensor electrode 53 that faces the guard electrode 102 is a dead zone that does not detect a change in capacitance. Accordingly, it is possible to prevent a malfunction in which the electrostatic capacitance of the sensor electrode 53 changes due to the stray capacitance C3 generated between the foreign material 111 adjacent to the door panel 4 from the outside of the door panel 4 and the door panel 4. Then, it is reduced that the door panel 4 is stopped because it is erroneously determined that the foreign object 111 exists between the door panel 4 and the vehicle body 3 only by the foreign object approaching the door panel 4 from the outside of the door panel 4. Further, the above malfunction can be prevented with a simple configuration in which the guard electrode 102 is provided and the guard electrode 102 is kept at the same voltage as the sensor electrode 53 by the buffer amplifier 71.

  (2) The guard electrode 102 is provided on the protector 42 for fixing the sensor main body 44 to the door panel 4. Therefore, the guard electrode 102 is easily fixed to the door panel 4 by the protector 42 together with the sensor body 44 when the protector 42 is fixed to the door panel 4. In addition, since the guard electrode 102 constitutes a holding portion 82 that holds the sensor main body 44, the guard electrode 102 is easily disposed between the sensor electrode 53 and the door panel 4. Furthermore, since the guard electrode 102 constitutes the holding portion 82, the guard electrode 102 is disposed at a position close to the sensor electrode 53. Therefore, electrical connection between the sensor electrode 53 and the guard electrode 102 is facilitated. From these things, the manufacturing cost of the electric sliding door apparatus 1 can be reduced.

  (3) The attachment portion 81 of the protector 42 is formed of an insulating resin material. The guard electrode 102 is formed on a holding portion 82 that is formed integrally with the mounting portion 81. Therefore, the guard electrode 102 and the door panel 4 can be easily insulated by the mounting portion 81.

  (4) The guard electrode 102 constitutes a holding portion 82 that holds the sensor body 44. Therefore, it is possible to easily adjust the detection range A in which the foreign object 110 is detected simply by adjusting the range in which the guard electrode 102 is formed.

  (5) In the protector 42, the attachment portion 81 and the contact portion 103 are formed of an insulating resin material. In the protector 42, the guard electrode 102 is formed of a conductive resin material. Therefore, the protector 42 can be easily formed by extrusion, and the manufacturing time and the manufacturing cost can be reduced.

  (6) When the electric wire 85 is connected to the lower end portion of the bone member 84, the electric wire 85 comes out from the lower end portion of the protector 42. The guard electrode 102 can be easily connected to the output terminal 75 of the buffer amplifier 71 by simply screwing the electric wire 85 to the terminal 76 of the terminal processing unit 61. As a result, since the buffer amplifier 71 and the guard electrode 102 are electrically connected, it is possible to prevent the sensor main body 44 and the protector 42 from having a complicated configuration and to suppress an increase in manufacturing cost.

  (7) In the sensor body 44, the core electrode 51, the piezoelectric rubber 52, and the sensor electrode 53 are in the form of a coaxial cable. Therefore, when the sensor main body 44 is disposed, it is not necessary to consider the circumferential direction of the sensor main body 44, and the assembling property to the protector 42 is improved. In addition, since the sensor main body 44 is formed in the shape of a coaxial cable, the portion where the sensor main body 44 is disposed is curved, and thus the sensor main body 44 is disposed in a state of being curved in the axial direction. However, the function of the sensor main body 44 is prevented from being impaired. Therefore, the degree of freedom in the shape of the location where the sensor main body 44 is disposed can be increased.

  (8) The sensor main body 44 protrudes further toward the front side of the vehicle 2 than the front end 4 b of the door panel 4. That is, the sensor main body 44 protrudes from the front end 4b of the door panel 4 to the front side in the moving direction when the door panel 4 is closed. Therefore, when the foreign object 110 exists between the door panel 4 and the vehicle body 3, the sensor main body 44 (contact portion 103) comes into contact with the foreign object 110 before the door panel 4. Accordingly, the foreign object 110 existing between the door panel 4 and the vehicle body 3 can be detected earlier, the force applied to the foreign object 110 from the door panel 4 can be reduced, and the time during which the force is applied to the foreign object 110 can be shortened. .

  (9) An insulating coating 83 is formed on the outer peripheral surface of the protector 42. Therefore, the outer surface 102 c of the guard electrode 102 is covered with the insulating film 83. Therefore, the insulating coating 83 prevents foreign matter 110, 111, etc. from coming into direct contact with the guard electrode 102. That is, the foreign matters 110 and 111 and the guard electrode 102 can be insulated from each other by the insulating film 83.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, the foreign object detection sensor 41 includes both the capacitance type sensor and the contact type sensor, but may be configured to include only the capacitance type sensor.

  In the above embodiment, the contact type sensor included in the foreign object detection sensor 41 includes the core electrode 51, the piezoelectric rubber 52, and the sensor electrode 53, and the door panel 4 and the vehicle body based on the resistance change of the piezoelectric rubber 52. However, the present invention is not limited to this. The contact-type sensor included in the foreign object detection sensor 41 may be a pressure-sensitive switch type sensor. For example, the foreign object detection sensor 41 is provided with two electrodes (a pair of conductors) arranged at intervals along the longitudinal direction of the foreign object detection sensor 41. One end of these electrodes is electrically connected to each other through a resistor. And while supplying an electric current from the edge part on the opposite side to the resistance in one electrode among two electrodes, the edge part on the opposite side to the resistance in the other electrode is electrically connected to a current detection element. When the foreign object 110 comes into contact with such a foreign object detection sensor 41 and a pressing force is applied to the foreign object detection sensor 41, the foreign object detection sensor 41 is deformed and the two electrodes are brought into contact with each other. Then, a current flows between the two electrodes without passing through a resistor, and the contact of the foreign material 110 is detected by detecting a change in the magnitude of the current with a current detection element. Even if comprised in this way, the effect similar to the said embodiment can be acquired.

  In the above embodiment, the guard electrode 102 is formed of a conductive resin material and constitutes the holding portion 82 of the protector 42, but is not limited thereto. The guard electrode 102 may be disposed between the sensor electrode 53 and the door panel 4. For example, the guard electrode 120 as shown in FIGS. 9 and 10 may be used. The guard electrode shown in FIGS. 9 and 10 is formed using the bone member main body 84a. Specifically, a portion near the outer plate 95 (the vehicle outer side) in the plurality of bone member main bodies 84 a arranged along the longitudinal direction of the attachment portion 81 has a curved shape along the outer periphery of the sensor electrode 53. And the bone member main body 84a is formed so that the shape seen from the longitudinal direction of the protector 42 may comprise a substantially S shape. In the bone member main body 84 a, the end on the door panel 4 side protrudes to the outside of the attachment portion 81 to form the guard electrode 120, and is disposed between the door panel 4 and the sensor electrode 53. If comprised in this way, the protector 42 can be formed with one type of insulating resin material, and a manufacturing cost can be reduced. Further, by using the bone member main body 84a, which is a component part of the protector 42, as the guard electrode 120, the increase in the number of parts due to the provision of the guard electrode 120 can be prevented, and the manufacturing cost can be further reduced. it can. Further, in the bone member main body 84a, a portion that is not used as the guard electrode 120 is embedded in the attachment portion 81 made of an insulating resin material, so that the guard electrode 120 and the door panel 4 can be easily insulated. . Of course, the outer surface 120a of the guard electrode 120 may be covered by forming an insulating film similar to the insulating film 83 on the outer surface 120a of the guard electrode 120 (the surface exposed outside the mounting portion 81).

  In the above embodiment, the guard electrode 102 and the sensor electrode 53 are connected via the buffer amplifier 71 by screwing the electric wire 85 connected to the guard electrode 102 at the lower end of the protector 42 to the terminal 76 of the terminal processing unit 61. Was electrically connected. However, the terminal 76 may be configured to sandwich the electric wire 85, and the guard electrode 102 and the sensor electrode 53 may be electrically connected via the buffer amplifier 71 by sandwiching the electric wire 85 into the terminal 76. Further, as shown in FIG. 11, instead of the terminal 76, the terminal processing unit 61 is provided with a needle unit 130 electrically connected to the output terminal 75 of the buffer amplifier 71, and the sensor body 44 is inserted into the insertion hole of the holding unit 82. When inserted into 101, the needle portion 130 may be inserted into the guard electrode 102. With this configuration, simply by inserting the sensor body 44 into the insertion hole 101, the needle portion 130 is inserted into the guard electrode 102, and the guard electrode 102 and the sensor electrode 53 are easily electrically connected via the buffer amplifier 71. Connected to. As a result, the manufacturing cost can be reduced. In the example illustrated in FIG. 11, the needle unit 130 is provided in the terminal processing unit 61, but is not limited thereto. By providing a needle part 130 electrically connected to the guard electrode 102 on the protector 42 side and inserting the sensor body 44 into the insertion hole 101, the needle part 130 is inserted into the terminal processing part 61, and the guard electrode 102 The sensor electrode 53 may be electrically connected via the buffer amplifier 71.

  A terminal processing unit 140 shown in FIG. 12 may be used instead of the terminal processing unit 61 of the above embodiment. The terminal processing unit 140 illustrated in FIG. 12 includes a plate member 62 similar to that in the above embodiment. Two metal pieces 141 and 142 are disposed on the plate member 62. The metal piece 141 is connected to the other end of the electric wire 143 whose one end is connected to the core electrode 51 and is connected to the other end of the lead wire 144 whose one end is connected to the ground GND. Further, a circuit unit 145 is disposed on the plate member 62. The circuit unit 145 includes a capacitance detection device 45, a current detection element 46, and a buffer amplifier 71 (not shown in FIG. 12). The circuit unit 145 is supplied with power through a lead wire 146 and is connected to the ground GND through the lead wire 144. The metal piece 142 is connected to the other end of an electric wire 147 whose one end is connected to the sensor electrode 53. In addition, a circuit portion 145 is connected to the metal piece 142, whereby the sensor electrode 53 is electrically connected to the circuit portion 145 through the metal piece 142. Further, a terminal 148 to which the guard electrode 102 (not shown in FIG. 12) is electrically connected is electrically connected to the circuit portion 145. When the guard electrode 102 is connected to the terminal, the guard electrode 102 is electrically connected to the sensor electrode 53 via the buffer amplifier 71 provided in the circuit unit 145, and is the same as the sensor electrode 53 by the buffer amplifier 71. Kept at voltage. Further, the circuit portion 145 is connected to a lead wire 149 that connects the circuit portion 145 to the control circuit device 8 (not shown in FIG. 12). As described above, when the terminal processing unit 140 is used instead of the terminal processing unit 61, the number of lead wires connected to the terminal processing unit 140 can be reduced.

In the above embodiment, the contact portion 103 is formed of an insulating resin material having elasticity, but may be formed of a sponge (porous insulating material).
In the above embodiment, when the control circuit device 8 determines that the foreign object 110 exists between the door panel 4 and the vehicle body 3 based on the electrostatic capacitance detection signal during the closing operation of the door panel 4, the control circuit device 8 stops the slide motor 28. It is configured as follows. However, when the control circuit device 8 determines that the foreign object 110 exists between the door panel 4 and the vehicle body 3 during the closing operation of the door panel 4, the control circuit device 8 decelerates the slide motor 28 to call attention to the foreign object 110. It may be configured as follows. In the above embodiment, when a current detection signal is input during the closing operation of the door panel 4, the control circuit device 8 determines that the foreign object 110 is caught between the door panel 4 and the vehicle body 3, and the slide motor 28 outputs a drive signal to the effect that the door panel 4 is moved to the fully open position. However, the control circuit device 8 is configured to output a stop signal to the slide motor 28 so as to stop the door panel 4 when it is determined that the foreign object 110 is caught between the door panel 4 and the vehicle body 3. Also good.

  In the above embodiment, the guard electrode 102 is maintained at the same voltage as the sensor electrode 53 by the buffer amplifier 71, but is not limited thereto. The guard electrode 102 may be kept at a constant ratio with respect to the voltage of the sensor electrode 53. Note that keeping the voltage at a constant ratio means that the voltage of the guard electrode 102 is controlled according to the voltage of the sensor electrode 53 so that the ratio of the voltage of the sensor electrode 53 and the voltage of the guard electrode 102 is always constant. Means that. Then, for example, using the potential difference between the sensor electrode 53 and the guard electrode 102 with respect to the ground, the ratio of the voltage of the sensor electrode 53 and the voltage of the guard electrode 102 is taken, and the voltage of the guard electrode 102 is set so that the ratio becomes a constant ratio. Be controlled.

  In the above embodiment, the foreign object detection sensor 41 is disposed along the end 4a of the door panel 4 on the front side of the vehicle 2, but is not limited thereto. For example, the foreign matter detection sensor 41 may be disposed in the vehicle body 3 at the periphery of the entrance 9 that faces the door panel 4 in the traveling direction when the door panel 4 is closed. In addition, the foreign matter detection sensor 41 is disposed at the peripheral edge on the front side in the traveling direction during the closing operation of the back door of the vehicle 2 or on the peripheral edge portion on the front side in the traveling direction at the closing operation of the trunk door. May be. Further, the foreign matter detection sensor 41 may be disposed at the peripheral edge of the opening of the vehicle body that is opened and closed by the back door, or at the peripheral edge of the opening of the vehicle body that is opened and closed by the trunk door.

  In the above embodiment, the protector 42 holding the sensor body 44 is attached to the bracket 91 by inserting the bracket body 96 into the attachment groove 86. However, depending on the shape of the vehicle 2 (door panel 4), the protector 42 may be directly attached to the door panel 4. For example, even if the protector 42 is attached to the door panel 4 by inserting the front end 4 b of the door panel 4 shown in FIG. 6A into the attachment groove 86 and sandwiching the periphery of the extension portion 94 of the inner plate 92 by the attachment portion 81. Good. If it does in this way, since bracket 91 can be omitted, the cost for mounting an electric sliding door device in vehicles 2 can be reduced.

  In the above embodiment, the attachment portion 81 of the protector 42 is made of an insulating resin material. However, the attachment portion 81 may be formed of the same conductive resin material as that of the guard electrode 102. If it does in this way, manufacture of protector 42 will become easy and the manufacturing cost of protector 42 can be reduced.

The perspective view which shows the vehicle provided with the electric slide door apparatus. The perspective view which shows the vehicle provided with the electric slide door apparatus. The perspective view which shows the drive mechanism for moving a door panel. The perspective view which shows a door panel. The perspective view which shows a terminal process part. (A) is sectional drawing of a foreign material detection sensor, (b) is sectional drawing of a sensor main body. The block diagram which shows the electrical structure of a foreign material detection part. The conceptual diagram which shows the inside of a terminal process part. Sectional drawing of the foreign material detection sensor of another example. The perspective view which shows the bone member in the foreign material detection sensor of another example. The perspective view which shows the connection state of a guard electrode and a terminal process part. The conceptual diagram which shows the inside of the terminal processing part of another example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electric sliding door apparatus as an opening / closing device, 3 ... Car body as a fixed body, 4 ... Door panel as a moving body, 4a ... End part as a peripheral part of a moving body, 4b ... Front end as a peripheral part of a moving body, 9 DESCRIPTION OF SYMBOLS ... Entrance / exit as opening part, 41 ... Foreign object detection sensor as detection sensor, 42 ... Protector as support member, 45 ... Capacitance detection device constituting non-contact detection part, 46 ... Current constituting contact detection part Detection element 51 ... Core electrode as a conductor constituting the contact detection unit 52 ... Piezoelectric rubber constituting the contact detection unit 53 ... Sensor electrode as a conductor 61,140 ... Terminal processing unit 71 ... Circuit device Buffer amplifier as 81, attaching portion, 82 holding portion, 83 insulating film, 84 bone member, 85 electric wire as connecting member, 102, 120 guard electrode, 102c outer surface, 110 Foreign matter as the object to be detected, 130 ... needle.

Claims (10)

In an opening / closing device comprising a conductive moving body for opening and closing an opening formed in a conductive fixed body,
Either the peripheral portion of the moving body on the front side in the traveling direction during the closing operation of the moving body or the peripheral portion of the opening facing the moving body in the traveling direction during the closing operation of the moving body. A detection sensor that is disposed and has a sensor electrode, and detects the detection object based on a change in capacitance between the sensor electrode and a conductive detection object adjacent to the sensor electrode;
The sensor electrode is provided between any one of the fixed body and the movable body in which the detection sensor is disposed, and is electrically connected to the sensor electrode and has the same voltage or constant as the sensor electrode. And a guard electrode maintained at a specific voltage. The switchgear according to claim 1,
A support member for fixing the detection sensor to any one of the fixed body and the movable body;
An opening / closing device, wherein the guard electrode is provided on the support member. The switchgear according to claim 2, wherein
The support member includes a holding portion that holds the detection sensor, and an attachment portion that is fixed to any one of the fixed body and the movable body,
The guard electrode is provided in the holding part, and the switchgear characterized by things. The switchgear according to claim 3, wherein
The support member is made of an insulating resin material,
The guard electrode is made of a conductive resin material, and is integrally formed with the support member. The switchgear according to claim 2, wherein
The support member includes a holding portion that holds the detection sensor, and a mounting portion that has a reinforcing bone member formed of a conductive material and is fixed to one of the fixed body and the movable body. Configured with
The guard electrode is formed of the bone member protruding to the outside of the mounting portion. The switchgear according to any one of claims 2 to 5,
A connection member electrically connected to the guard electrode and electrically connected to a circuit device that keeps the sensor electrode and the guard electrode at the same voltage or a constant voltage is provided. Switchgear. The switchgear according to claim 6,
A terminal processing unit having the circuit device to which the sensor electrode is electrically connected is provided at an end of the detection sensor,
The connection member is provided on one of the terminal processing unit and the support member, and when the detection sensor is supported by the support member, the connection member is impinged on the other of the terminal processing unit and the support member. An opening and closing device characterized by being a needle portion. The switchgear according to any one of claims 1 to 7,
The detection sensor includes the sensor electrode and a non-contact detection unit that detects the detection object based on a change in capacitance between the sensor electrode and the detection object, and a pair of conductors. A contact detector that detects the detection object based on a change in resistance or voltage between the conductors that changes due to a pressing force applied from the detection object by contact of the detection object;
The switchgear characterized in that the non-contact detector and the contact detector are arranged coaxially. The switchgear according to claim 8, wherein
The detection sensor is disposed at the peripheral portion of the moving body on the front side in the moving direction when the moving body is closed, and is on the front side in the moving direction when the moving body is closed than the periphery of the moving body. An opening and closing device characterized by protruding. The switchgear according to any one of claims 1 to 9,
An opening / closing device characterized in that an insulating film is formed on the outer surface of the guard electrode.

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