JP5018801B2 - Long sensor - Google Patents

Description

  The present invention relates to a sensor for detecting foreign matter, and particularly to a long sensor for detecting foreign matter between a vehicle body and an opening / closing body such as a door in a vehicle such as an automobile.

  Conventionally, in a vehicle such as a so-called one-box car, a passenger's boarding / exiting gate is greatly opened and closed to improve boarding / exiting flights, and in order to keep the door as far from the body as possible, Some have sliding doors that slide. In recent years, when the slide door can be automatically closed using a motor or the like, or when the slide door is located in front of the fully closed position where the body opening is fully closed, One that drives the door to the fully closed position is known.

  In such a door opening / closing system, it is necessary to prevent any foreign matter (for example, a human body or clothes) from being caught during the automatic closing operation of the sliding door. For this reason, a sensor for detecting a foreign object and a mechanism for stopping the slide door and performing reverse rotation control in the opening direction when the foreign object is detected by the sensor are generally provided. Here, in order to realize a sensor for detecting a foreign object, a code switch including a hollow insulator having resilience and a plurality of electrode wires provided in the insulator in a non-contact state is provided as a slide door. The method of providing in the front side edge part of this is known (for example, refer patent document 1 etc.). In detail, when a foreign object exists between the body opening and the sliding door, the cord switch is pressed by the foreign object or the edge of the door with the closing operation of the sliding door, and the electrode wires inside the insulator are connected to each other. Contact, causing a short circuit. And when a short circuit is detected, it detects that a foreign material exists.

  However, in the above technique, foreign matter detection is possible only when a relatively large load is applied to the cord switch to such an extent that contact between the electrode wires occurs. Therefore, a large load may be applied to the foreign matter before the foreign matter is detected.

  In order to solve the above problems, a capacitance type sensor has been proposed (for example, see Patent Document 2). The capacitance type sensor detects a foreign object based on a change in capacitance when a foreign object such as a human body approaches. In other words, the capacitance type sensor can detect a foreign object in a state of non-contact with the foreign object.

JP 2007-123202 A JP 2007-18839 A

  However, in a capacitance type sensor, if water drops adhere to the sensor or the sensor periphery due to rain or the like, the capacitance changes as in the case where a human body or the like approaches the sensor. Therefore, when water droplets adhere to the sensor or the like, there is a possibility that the human body or the like may be erroneously detected as approaching the sensor. In addition, there is a problem that it is impossible to detect a foreign substance (for example, an insulator such as plastic) whose electrostatic capacity is equal to or less than that of the human body.

  The present invention has been made in view of the above circumstances, and its purpose is to more reliably prevent erroneous detection due to adhesion of water droplets to a sensor or the like, and also to detect an insulator or the like. An object of the present invention is to provide a long sensor that can be used.

  In the following, each means suitable for solving the above-described object will be described in terms of items. In addition, the effect specific to the means to respond | corresponds as needed is added.

Means 1. A mounting base attached to an edge of an opening / closing body capable of opening and closing an opening provided in the vehicle body;
A skin portion that bulges from the mounting base toward the periphery of the opening, and has a hollow portion inside,
A pair of plate-like electrodes facing each other across at least a part of the insulator, and a sensor body disposed in the hollow portion, A long sensor that detects proximity and / or contact to the skin portion based on a change in capacitance between electrodes,
The skin portion contains carbon,
Of the pair of plate-like electrodes,
The first electrode is embedded in the insulator or attached to the surface of the insulator on the skin portion side,
A second electrode different from the first electrode is provided closer to the mounting base than the first electrode;
The insulator has a support portion that comes into contact with the inner peripheral surface of the skin portion,
The portion of the support portion that contacts the skin portion is located closer to the attachment base than the first electrode, and
In the hollow portion, a gap is provided between the skin portion and the sensor body,
The long sensor, wherein an interval between the skin portion and the plate-like first electrode in the gap portion is 1.0 mm or more.

  According to the above means 1, a gap having a space of 1.0 mm or more between the skin portion and the plate-like first electrode is filled with air, that is, the relative dielectric constant is compared with about 1.0. The low space is formed with a sufficient size. Thus, when the gap portion is interposed between the skin portion and the sensor main body, when a water droplet having a smaller capacitance compared to the human body or the like contacts the sensor or the sensor periphery, the first electrode and the second electrode It can suppress that the electrostatic capacitance between these electrodes changes a lot. As a result, it is possible to more reliably prevent erroneous detection of foreign matters accompanying water droplets adhering to a sensor or the like. In addition, since the skin portion is supported by the support portion provided in the insulator, it is possible to maintain the shape of the gap portion and to improve the recoverability of the skin portion after the skin portion is crushed and deformed. it can. Therefore, the above-described operation and effect due to the provision of the gap portion are more reliably exhibited.

  Moreover, since the site | part which contacts an outer skin part among the support parts is located in the attachment base part side rather than the said 1st electrode, when a foreign material contacts, that deformation | transformation of an outer skin part will be inhibited by presence of a support part. It can be prevented more reliably. In addition, by containing carbon in the skin portion, the relative dielectric constant of the skin portion can be made relatively high (for example, about 10), and the deformation amount of the skin portion due to contact with foreign matter is small. Even if it is a thing, the electrostatic capacitance between both electrodes can be changed comparatively largely. That is, by adopting these configurations, the capacitance can be greatly changed even when a foreign object comes into contact with a small pressure. As a result, even a foreign substance having a relatively small capacitance such as an insulator can be detected more reliably, and the detection accuracy of the foreign substance can be dramatically improved.

  If the gap between the skin portion and the plate-like first electrode in the gap portion is less than 1.0 mm, the capacitance changes relatively greatly when water droplets adhere to the skin portion, There is a risk of false detection. Although it is conceivable to reduce the sensor sensitivity in order to prevent erroneous detection, even if erroneous detection due to adhesion of water droplets can be prevented, there is a possibility that the detection accuracy of foreign matter may be reduced.

  Mean 2. The long sensor according to means 1, characterized in that a space is provided in the insulator and at a position between the pair of electrodes.

  According to the above means 2, since the space is formed inside the insulator, the insulator is easily crushed and deformed. Therefore, even when the contact pressure of the foreign matter is relatively small, the first electrode can be made much closer to the second electrode, and the amount of change in capacitance between both electrodes can be increased. . As a result, the foreign matter detection accuracy can be further improved.

  Means 3. 3. The long sensor according to means 1 or 2, wherein the first electrode is disposed inside the insulator.

  According to the means 3, since the first electrode is embedded in the insulator, the first electrode comes into contact with the skin portion containing carbon and having conductivity when the foreign object contacts. Can be surely prevented. For this reason, it is possible to prevent the first electrode from being short-circuited, and the foreign matter detection accuracy can be further improved.

  Means 4. The long sensor according to any one of means 1 to 3, wherein a relative dielectric constant of the insulator is 2.7 or more and 4.0 or less.

  The insulator sandwiched between the two electrodes is preferably formed from a soft material (for example, EPDM rubber or a resin such as a thermoplastic elastomer) that can easily bring the two electrodes together with a relatively small pressure. Even when the approach distance between the electrodes is relatively small, it is preferable that the relative permittivity is relatively large so that the capacitance can be varied relatively large. Therefore, in consideration of these factors, it is preferable that the dielectric constant of the insulator is 2.7 or more as in the above-described means 4. However, if the relative dielectric constant of the insulator is excessively increased, the detection accuracy may be reduced. Therefore, it is desirable that the relative dielectric constant of the insulator is 4.0 or less.

  Means 5. The long sensor according to any one of means 1 to 4, wherein a hardness of the insulator is 40 degrees or more and 60 degrees or less in Shore A value.

  According to the above means 5, since the hardness of the insulator is 40 degrees or more in Shore A value, when the long sensor vibrates due to the operation or vibration of the vehicle, the movement of the first electrode is more reliably performed. Can be suppressed. Therefore, the capacitance between both electrodes can be prevented from changing without being approached or touched by a foreign substance, and the detection accuracy can be further improved. If the hardness of the insulator is less than 40 degrees in Shore A value, for example, if an insulator is formed by extrusion molding of rubber or resin, the molding becomes difficult, and as a result However, according to the present means, such a concern can be eliminated.

  In addition, when the hardness of the insulator is a Shore A value of 60 degrees or less, the insulator is more easily deformed. For this reason, even when the contact pressure of the foreign matter is relatively small, the distance between the two electrodes can be easily reduced, and the capacitance can be greatly changed. As a result, it is possible to further improve the foreign matter detection accuracy.

It is a perspective view which shows the vehicle which comprises a sliding door. It is a block diagram which shows electric structures, such as ECU. It is the JJ sectional view taken on the line in FIG. (A) is sectional drawing which shows the elongate sensor etc. of a water droplet adhesion state, (b) is sectional drawing which shows a elongate sensor etc. when a foreign material exists in an approaching state. (A) is sectional drawing which shows a long sensor etc. when a foreign material is in a light contact state, (b) is sectional drawing which shows a long sensor etc. when a foreign material is in a contact state.

  Hereinafter, an embodiment will be described with reference to the drawings.

  FIG. 1 is a schematic perspective view of a vehicle equipped with a sliding door. As shown in the figure, the vehicle 1 has a slide door 2 as an opening / closing body on the side surface of the body. The slide door 2 is supported on the side of the body by a slide rail 3 provided at the center of the side of the body and slide rails (not shown) provided on the ceiling and floor sides of the body side. The sliding door 2 is between a fully closed position shown in the figure where the entrance / exit 4 as an opening shown on the side of the body is fully closed and a fully open position (see the two-dot chain line in the figure) where the entrance / exit 4 is fully opened. It is configured to slide along the side of the body and open / close the entrance 4.

  A locking mechanism (not shown) that engages the body and the slide door 2 is provided between the rear end surface of the door pillar 5 of the body and the front side panel of the slide door 2. When the slide door 2 is slid to the fully closed position shown in the drawing, the slide door 2 is configured to be locked at the fully closed position by the lock mechanism.

  In addition, an automatic closing mechanism (not shown) is provided inside the slide door 2. The automatic closing mechanism is for sliding the sliding door 2 in the fully open position to the fully closed position. In addition, as shown in FIG. 2, the automatic closing mechanism includes a drive motor 11 for operating the slide door 2 to the fully closed position, and an electronic control unit (ECU) as a control unit that controls the drive motor 11. 12. A closing command signal is input to the ECU 12 from an operation switch 13 disposed in the driver's seat, a remote controller (remote controller) switch 14 disposed in the vehicle compartment, or the like. Further, the ECU 12 can grasp the current position of the slide door 2 (including the fully opened position and the fully closed position) based on a signal from the drive motor 11 or a separate detection sensor (not shown). It has become.

  When the closing command signal is input when the entrance / exit 4 is in an open state (in this case, for example, the slide door 2 is fully opened), the ECU 12 controls the drive motor 11 to rotate forward. As a result, the sliding door 2 is slid to the fully closed position and locked at the fully closed position. Then, after the locking is completed, the operation of the drive motor 11 is stopped.

  Furthermore, in this embodiment, the long sensor 21 which can detect that the foreign material exists in the clearance gap between the slide door 2 and the entrance / exit 4 periphery is provided. The long sensor 21 is electrically connected to the capacitance measuring means 15, and the capacitance measuring means 15 is electrically connected to the ECU 12. Here, the capacitance measuring means 15 is configured to be able to measure a capacitance between a first electrode 271 and a second electrode 272, which will be described later, every predetermined time, and relates to the measured capacitance ( Information) is transmitted to the ECU 12. In the present embodiment, the ECU 12 determines that the change rate of the transmitted capacitance with respect to the capacitance (reference capacitance) measured immediately before is larger than the preset threshold value. It is detected that foreign matter is present in the gap with the periphery of the entrance / exit 4. Then, the closing operation of the drive motor 11 is temporarily stopped, and reverse drive control for moving the slide door 2 in the opening direction is performed. That is, ECU12 is comprised so that the function as a stop control means may also be exhibited.

  Here, details of the long sensor 21 and the like will be described. 3 is a cross-sectional view taken along line JJ of FIG. 1 showing the front edge of the slide door 2 and the door pillar 5 portion of the body. As shown in FIG. 3, a weather strip 31 is provided on the flange 5 a that extends vertically along the rear end side of the door pillar 5 of the body. The weather strip 31 seals between the body and the slide door 2 when the slide door 2 is slid to the fully closed position indicated by the solid line in FIG. Note that immediately before the sliding door 2 is fully closed, the sliding door 2 is located obliquely lower right in the figure from the fully closed position, as indicated by a two-dot chain line in the drawing.

  The weather strip 31 is obtained by extrusion molding, and includes a mounting base portion 32 that is inserted into and fixed to the flange 5a, and a hollow seal portion 33. In the present embodiment, the mounting base 32 is made of EPDM solid rubber, and the seal portion 33 is made of EPDM sponge rubber. The seal portion 33 is pressed and deformed by being pressed by the inner panel of the slide door 2 so that the seal function is exhibited.

  Next, the long sensor 21 will be described. In the present embodiment, the long sensor 21 is attached to the front end 2b of the slide door 2 at a site facing the door pillar 5 of the body. The long sensor 21 includes an attachment base 22 fixed to the front end 2b of the slide door 2 and a skin 23 that bulges from both ends of the attachment base 22 toward the door pillar 5 side. The long sensor 21 is mounted over almost the entire area of the front vertical side of the slide door 2. Thereby, when the slide door 2 is slid to its fully closed position, it is determined whether or not foreign matter exists over the entire area between the rear end side surface of the door pillar 5 and the front end edge of the slide door 2 facing the door pillar 5. It can be detected.

  The mounting base portion 22 is formed by extrusion molding of EPDM solid rubber, and includes a base portion 24 and a pair of side wall portions 25a and 25b extending from the base portion 24 toward the rear side of the body. The skin portion 23 is formed in a circular arc shape so as to bulge from the base portion 24 toward the door pillar 5 side of the body, and a hollow portion 26 is formed therein.

In addition, the skin portion 23 is formed of EPDM sponge rubber containing a predetermined amount of conductive carbon. For this reason, the relative dielectric constant of the skin portion 23 is relatively large at 8.0 or more (for example, 10.0 or more) at room temperature. Further, since the skin portion 23 is formed to be relatively thin, it can be easily deformed. Further, in the hollow portion 26, the insulator 270, the first electrode 271 and the second electrode 272, and a sensor body 27 having a long shape is disposed.

  The insulator 270 is formed by extruding a material having flexibility and a relative dielectric constant of 2.7 to 4.0 (for example, EPDM solid rubber, thermoplastic elastomer (TPO), etc.). It is a thing. In addition, a space 270 a having a rectangular cross section and extending along the longitudinal direction of the long sensor 21 is provided inside the insulator 270. The insulator 270 has a Shore A value of 40 degrees or more and 60 degrees or less.

  The first electrode 271 is a strip-shaped (plate-shaped) electrode foil made of copper foil. The first electrode 271 is disposed on the skin portion 23 side of the space 270a and inside the insulator 270. Therefore, the surface of the first electrode 271 is configured not to be exposed to the hollow portion 26.

  The second electrode 272 is a strip-shaped electrode foil formed of a copper foil in the same manner as the first electrode 271. The second electrode 272 is attached to the surface of the insulator 270 on the mounting base 22 side, and is opposed to the first electrode 271 across the space 270a.

  In addition, the first electrode 271 is electrically connected to a charge supply device (not shown), and a predetermined charge is supplied from the charge supply device. On the other hand, the second electrode 272 is grounded. Thereby, both electrodes 271 and 272 constitute a capacitor. Further, the capacitance measuring means 15 is connected to the first electrode 271, and the capacitance between the electrodes 271 and 272 is measured by the capacitance measuring means 15 as described above.

  In the hollow portion 26, a gap portion 28 is provided between the inner peripheral surface of the skin portion 23 and the surface of the sensor body 27 (insulator 270) on the skin portion 23 side. In the gap portion 28, the distance between the skin portion 23 and the first electrode 271 is 1.0 mm or more. The gap portion 28 is filled with air, and the relative dielectric constant of the gap portion 28 is about 1.0.

  Further, the insulator 270 is formed with a pair of support portions 270 b that abut on the inner peripheral surface of the skin portion 23. Further, a portion of the support portion 270b that contacts the inner peripheral surface of the skin portion 23 is located closer to the attachment base portion 22 than the first electrode 271.

  Next, a foreign object detection method using the long sensor 21 described above will be described with reference to FIGS. 4A shows a state in which the water droplet DW adheres to the long sensor 21 (skin portion 23) (water droplet contact state), and FIG. 4B shows a foreign matter S in the skin portion 23. An approaching state (approaching state) is shown. FIG. 5A shows a state in which the foreign matter S is in light contact with the skin portion 23 (light contact state), and FIG. A state of contact with a large pressing force (contact state) is shown.

  As described above, the capacitance between the electrodes 271 and 272 is measured by the capacitance measuring unit 15 every predetermined time, and the measured capacitance (information on the measured capacitance) is transmitted to the ECU 12. Here, as shown in FIG. 4A, when the water droplet DW adheres to the long sensor 21, a gap portion 28 having a relatively low relative dielectric constant is interposed between the water droplet DW and the sensor body 27. Therefore, the amount of change in capacitance measured by the capacitance measuring means 15 is relatively small. Therefore, the change rate of the capacitance is smaller than the preset threshold value, and the ECU 12 determines that there is no foreign matter (that is, the ECU 12 detects the water droplet DW attached to the long sensor 21 as a foreign matter. Will not be judged).

  On the other hand, as shown in FIG. 4B, when the foreign matter S is close to the long sensor 21, the foreign matter S has a relatively large moisture content such as a human body and a large size. However, even if the gap 28 is interposed, the amount of change in the electrostatic capacity is sufficiently large. Therefore, when a foreign object such as a human body approaches, the change rate of the capacitance exceeds the threshold value, and the ECU 12 determines that a foreign object exists. That is, foreign matter such as a human body is detected when approaching the long sensor 21.

  On the other hand, when the foreign matter S is, for example, an insulator or a material having a relatively small moisture content, or a material having a relatively small size, the amount of change in capacitance tends to be relatively small. Therefore, the change rate of the capacitance can be smaller than the threshold value.

  In this case, as shown in FIG. 5A, the foreign object S cannot be detected only by approaching, and the foreign object S will lightly contact the long sensor 21 (skin portion 23). At this time, even if the pressing force is relatively small, the skin portion 23 is instantaneously dented due to the presence of the gap portion 28, and the relative dielectric constant of the skin portion 23 is relatively high, so that the capacitance is large. Will change. As a result, the change rate of the capacitance becomes relatively large, and the ECU 12 detects the foreign matter S more reliably as being present.

  Further, as shown in FIG. 5B, when the foreign matter S contacts the skin portion 23 with a larger pressing force, the insulator 270 has a relative dielectric constant larger than that of the gap portion 28. Even if the gap between the electrodes 271 and 272 is slightly reduced, the amount of change in capacitance becomes larger. For this reason, ECU12 can detect still more reliably that the foreign material S exists.

  As described above in detail, according to the present embodiment, the gap portion 28 having a gap of 1.0 mm or more between the skin portion 23 and the first electrode 271, that is, the relative dielectric constant is about 1.0. A relatively low space is formed with a sufficient size. Thus, when the gap 28 is interposed between the skin portion 23 and the sensor main body 27, when a water droplet having a smaller capacitance compared to the human body or the like contacts the skin portion 23, the first electrode 271. And it can suppress that the electrostatic capacitance between the 2nd electrodes 272 changes a lot. As a result, it is possible to more reliably prevent the occurrence of erroneous detection of a foreign object accompanying the attachment of water droplets to the long sensor 21 and its surroundings. Further, since the skin portion 23 is supported by the support portion 270b provided on the insulator 270, the shape of the gap portion 28 can be maintained, and the skin portion 23 after the skin portion 23 is crushed and deformed can be maintained. Restorability can be improved. Therefore, the above-described operation and effect due to the provision of the gap 28 can be more reliably achieved.

  Further, since the portion of the support portion 270b that contacts the skin portion 23 is located closer to the attachment base portion 22 than the first electrode 271, the deformation of the skin portion 23 is caused by the presence of the support portion 270b when a foreign object contacts. It can prevent more reliably that it will be inhibited. In addition, by adding carbon to the skin portion 23, the relative permittivity of the skin portion 23 can be made relatively high, and even if the amount of deformation of the skin portion 23 due to the contact of foreign matter is small. The capacitance between the electrodes 271 and 272 can be changed relatively large. That is, by adopting these configurations, the capacitance can be greatly changed even when the foreign matter comes into contact with a small pressure, and as a result, the foreign matter detection accuracy can be greatly improved. .

  Further, since the space 270a is formed inside the insulator 270, the insulator 270 is easily crushed and deformed. Therefore, even when the contact pressure of the foreign matter is relatively small, the first electrode 271 can be made much closer to the second electrode 272, and the amount of change in capacitance between the electrodes 271 and 272 can be reduced. Can be increased. As a result, the foreign matter detection accuracy can be further improved.

  Furthermore, since the first electrode 271 is embedded in the insulator 270, the first electrode 271 contains carbon and comes into contact with the conductive skin portion 23 when a foreign object contacts. Can be reliably prevented. For this reason, the first electrode 271 can be prevented from being short-circuited, and the foreign matter detection accuracy can be further improved.

  In addition, since the insulator 270 has a Shore A value of 40 degrees or more, the first electrode 271 can be more reliably shaken when the long sensor 21 vibrates in accordance with the operation or vibration of the vehicle 1. Therefore, the detection accuracy can be further improved. In addition, the insulator 270 can be formed relatively easily by extrusion.

  In addition, by setting the hardness of the insulator 270 to 60 degrees or less in Shore A value, the insulator 270 is more easily deformed. Therefore, even when the contact pressure of the foreign matter is relatively small, the distance between the electrodes 271 and 272 can be easily reduced, and the capacitance can be greatly changed. As a result, it is possible to further improve the foreign matter detection accuracy.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above embodiment, the ECU 12 detects the foreign matter based on the change rate of the capacitance, but may detect the foreign matter based on the change amount of the capacitance. In addition, an oscillation circuit is electrically connected to the first electrode 271, and a frequency signal corresponding to an oscillation output from the oscillation circuit according to a change in capacitance with time is measured instead of the capacitance measuring means. It is also possible to provide a frequency measuring means for detecting foreign matter based on the frequency signal measured by the frequency measuring means.

  (B) In the above embodiment, the first and second electrodes 271 and 272 are formed of copper foil. However, both the electrodes 271 and 272 are made of another metal material having high conductivity or carbon (conductive resin). It is good also as forming by etc. Moreover, it is good also as forming both the electrodes 271 and 272 in the net-like copper wire which makes flat form. Furthermore, both electrodes 271 and 272 may be provided by coating a metal material on the surface of the skin portion 23 or the mounting base portion 22. In addition, a predetermined pattern may be formed during painting. However, from the viewpoint of improving the foreign matter detection accuracy, it is more preferable to form both electrodes 271 and 272 with a material having excellent electrical conductivity (for example, gold or copper).

  (C) In the above embodiment, the first electrode 271 is disposed inside the insulator 270. However, the first electrode 271 may be attached to the surface of the insulator 270 on the skin portion 23 side. .

  (D) In the said embodiment, it has actualized about the case which has the slide door 2 for opening and closing the entrance / exit 4 provided in the body side surface. That is, the opening / closing body in the above embodiment is the slide door 2. On the other hand, it is good also as applying the technical idea of this invention to another opening-closing body (for example, non-sliding type). Examples of the other opening / closing body include a hatchback type back door whose upper portion is supported, a sliding roof that opens and closes the vehicle ceiling, and a door glass that opens and closes the door window.

  (E) In the above embodiment, EPDM solid rubber or TPO is exemplified as a material for forming the insulator 270. However, the insulator 270 may be formed of another flexible material.

  (F) In the above-described embodiment, a system for automatically closing the slide door 2 from the fully open position to the fully closed position is embodied. However, the slide door 2 is fully closed from the half-closed state (half-door position) or the intermediate position. It can also be embodied in a system that automatically closes to position.

  (G) Although not specifically described in the above embodiment, a waterproof treatment (for example, providing a waterproof wall covering the entire surface of the skin portion 23) may be performed so as to cover the skin portion 23. Moreover, it is good also as performing a rust prevention process with respect to both the electrodes 271,272. As a result, the number of erroneous determinations can be further reduced, and the durability can be improved.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Sliding door (opening-closing body), 4 ... Entrance / exit (opening), 21 ... Long sensor, 22 ... Mounting base, 23 ... Skin part, 26 ... Hollow part, 27 ... Sensor main body, 28 ... Gap part, 270 ... insulator, 270a ... space, 270b ... support part, 271 ... first electrode, 272 ... second electrode.

Claims (5)

A mounting base attached to an edge of an opening / closing body capable of opening and closing an opening provided in the vehicle body;
A skin portion that bulges from the mounting base toward the periphery of the opening, and has a hollow portion inside,
A pair of plate-like electrodes facing each other across at least a part of the insulator, and a sensor body disposed in the hollow portion, A long sensor that detects proximity and / or contact to the skin portion based on a change in capacitance between electrodes,
The skin portion contains carbon,
Of the pair of plate-like electrodes,
The first electrode is embedded in the insulator or attached to the surface of the insulator on the skin portion side,
A second electrode different from the first electrode is provided closer to the mounting base than the first electrode;
The insulator has a support portion that comes into contact with the inner peripheral surface of the skin portion,
The portion of the support portion that contacts the skin portion is located closer to the attachment base than the first electrode, and
In the hollow portion, a gap is provided between the skin portion and the sensor body,
The long sensor, wherein an interval between the skin portion and the plate-like first electrode in the gap portion is 1.0 mm or more.   2. The long sensor according to claim 1, wherein a space is provided inside the insulator and between the pair of electrodes.   The long sensor according to claim 1, wherein the first electrode is disposed inside the insulator.   The long sensor according to any one of claims 1 to 3, wherein a relative dielectric constant of the insulator is set to 2.7 or more and 4.0 or less.   The long sensor according to any one of claims 1 to 4, wherein a hardness of the insulator is 40 degrees or more and 60 degrees or less in Shore A value.

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