JP5179973B2 - Sensor - Google Patents

Description

  The present invention relates to a sensor that is provided at one of an opening of a vehicle body and an opening / closing member that opens and closes the opening and is molded with resin at an end.

  A sliding door (opening / closing member) that is provided so as to be movable along the side wall of the vehicle body and opens and closes an opening formed in the side wall of the vehicle body is arranged along the front vertical direction in the closing direction when the sliding door is closed. A tube-shaped sensor that detects the presence of foreign matter between the front surface of the slide door and the edge of the opening is provided.

  This tube-shaped sensor is provided with a plurality of electrode wires at intervals inside an elastic tube. When the tube is pressed and crushed by a foreign material, the electrode wire contacts and short-circuits to detect the foreign material. Is done.

And the end surface of a tube-shaped sensor is an opening. After the electrode wire and the lead wire from the control device are electrically connected, resin molding is performed to close the opening (for example, see Patent Document 1).
Japanese Patent No. 3479229

However, the above-described sensor has a problem in that the resin flows into the tube at the time of molding and the function as the sensor is impaired.
The present invention has been made in view of the above problems, and an object thereof is to provide a sensor in which resin does not flow into the sensor during molding.

The invention according to claim 1 is provided in one of the opening of the vehicle body and the opening / closing member for opening and closing the opening, and in the sensor in which resin molding is performed at the end, an opening is formed at the end, and at least a tubular sensor body having a single electrode line, is inserted into the interior of the sensor body from the opening of the sensor body, the circumferential surface in contact with the inner wall surface of the sensor body, the body of the sensor An end cap having an insertion portion for expanding the inner wall surface , and further having at least one through-hole formed therein, through which electrode wires inside the sensor body are inserted, and each electrode wire is guided to the outside of the sensor body; And a resin mold part covering the end part of the sensor body and the end cap.

In addition, in this specification, the inside of a sensor main body means the hollow part and wall part of a tube-shaped sensor main body.
The invention according to claim 2 is the sensor according to claim 1, wherein a flange portion that comes into contact with an end surface of the sensor body is formed in the insertion portion of the end cap.

  According to a third aspect of the present invention, there are a plurality of the electrode wires, a plurality of the through holes are provided corresponding to the respective electrode wires, and the end cap is guided to the outside of the sensor body. 3. The sensor according to claim 1, further comprising a partition located between the electrode wires.

According to the invention of claim 1 according to claim 3, the end cap is inserted toward the opening of the sensor body to the interior of the sensor body, the circumferential surface in contact with the inner wall surface of said sensor body, said sensor By having an insertion part that expands the inner wall surface of the main body, the resin does not flow into the sensor body when the resin mold part that covers the end part of the sensor body and the end cap is molded.

  According to the second aspect of the invention, the insertion portion of the end cap is formed with the flange portion that contacts the end surface of the sensor body, so that the insertion portion is inserted until the flange portion contacts the end surface of the sensor body. When the sensor is inserted into the sensor body, the end cap is positioned with respect to the sensor body, and the end cap can be prevented from being pushed into the sensor body.

  According to the invention of claim 3, there are a plurality of the electrode wires, a plurality of the through holes are provided corresponding to the respective electrode wires, and the end cap is guided to the outside of the sensor body. Further, by providing the partition located between the electrode wires, it is possible to prevent the electrode wires exposed to the outside of the sensor body from coming into contact with each other and short-circuiting through the through holes during molding.

  First, the sliding door provided with the tube-shaped sensor of this embodiment will be described with reference to FIGS. FIG. 7 is a view for explaining the sliding door, and FIG. 8 is a cross-sectional view taken along a cutting line BB in FIG.

  As shown in FIG. 7, the slide door 105 is provided in the opening 103 of the vehicle body 101 so as to be opened and closed. Reference numeral 102 denotes a front door body. As shown in FIG. 8, the slide door 105 includes a slide door main body 107 that closes the opening 103 of the vehicle body 101, a front side of the slide door main body 107 in the closing direction, and a rear side of the slide door main body 107. The slider 109 is rotatably provided at the rear portion, and a guide 111 with which the slider 109 is movably engaged.

  In the case of an electric slide door, a wire wound around a drum is connected to the slide door main body 107, and the slide door main body 107 moves along the guide 111 by rotating the drum and pulling the wire. .

  A convex stopper 107 a is provided on the front surface of the slide door main body 107, and a concave stopper 103 a that can contact the convex stopper 107 a is provided on the pillar 100 that forms the opening 103.

  The guide 111 includes a main body 113 provided on the vehicle body 101 on the rear side of the opening 103, and a curved portion 115 that is connected to the main body 113 and curves toward the inside of the vehicle body 101 through the opening 103. Yes. The curved portion 115 of the guide 111 is a direction in which the rear portion of the slide door body 107 is pulled into the opening 103 in a state where the stopper 107a of the slide door body 107 is in contact with the stopper 103a of the opening 103 when the slide door body 107 is fully closed. To guide you.

And the tube-shaped sensor 200 is provided in the inner front part of the slide door main body 107 along the up-down direction.
Next, the sensor 200 will be described with reference to FIGS. 1 is a longitudinal sectional view of the sensor of FIG. 8, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is a front view of the end cap of FIG. 1, and FIG. 5 is a left side view of FIG. 3, and FIG. 6 is a right side view of FIG.

  As shown in FIG. 1, the sensor 200 includes a tube-shaped sensor main body 201, an end cap 301 provided at the end of the sensor main body 201, and a resin mold portion 401 that covers the end of the sensor main body 201 and the end cap 301. It is made up of.

  As shown in FIG. 2, the sensor main body 201 includes a sensor portion 203 that emits a signal when it is crushed, and a mounting portion 205 that is attached to a mounting portion (for example, a hemming portion) formed on the slide door main body 107 described above. ing.

  The sensor unit 203 includes a tube-shaped outer electrode portion 204 made of a styrene-based soft conductive resin, and a joint portion 206 made of a styrene-based soft insulating resin formed on the inner peripheral surface of the outer electrode portion 204 along the longitudinal direction. And an inner electrode portion 207 formed along the longitudinal direction on the joint portion 206 and made of a styrenic soft conductive resin. Further, electrode wires 209 and 211 made of metal wires are embedded in the outer electrode portion 204 and the inner electrode portion 207, respectively, along the longitudinal direction.

  The electrode wire 209 of the outer electrode portion 204 is connected to contact detection means (not shown) through the lead wire 229. The contact detection unit detects the presence or absence of foreign matter contact with the outer electrode unit 204 based on the capacitance of the outer electrode unit 204. The presence / absence of contact is detected based on a predetermined threshold.

  The inner electrode portion 207 is equalized over the entire length because the electrode wire 211 and the inner electrode portion 207 have conductivity. Further, the inner electrode portion 207 becomes a ground electrode by connecting the electrode wire 211 of the inner electrode portion 207 to the ground of the door or the electric circuit via the lead wire 231.

  Next, the end cap 301 will be described with reference to FIGS. The end cap 301 has an insertion portion 303 that is inserted from the opening of the sensor body 201 toward the inside of the sensor body 201. The insertion portion 303 includes an insertion portion main body 303 a whose peripheral surface is in contact with the inner wall surface of the sensor main body 201, and a flange portion 303 b that is formed in the insertion portion main body 303 a and is in contact with the end surface of the sensor main body 201.

Further, the insertion portion main body 303a is formed with a groove 303c through which the joint portion 206 of the sensor portion 203 of the sensor main body 201 and the inner electrode portion 207 are inserted.
Furthermore, a plurality of through holes 303 d and 303 e for inserting the electrode wires 209 and 211 inside the sensor main body 201 into the flange portion 303 b of the insertion portion 303 and guiding the electrode wires 209 and 211 to the outside of the sensor main body 201. Is formed.

The end cap 301 is formed with a partition 305 positioned between the electrode wires 209 and 211 guided to the outside of the sensor body 201.
As shown in FIG. 1, the electrode wires 209 and 211 that pass through the through holes 303 d and 303 e of the end cap 301 and are exposed to the outside of the sensor main body 201 are lead wires from the control device within a range of the partition 305. 229 and 231 are electrically connected. When this connection is made, the resin mold part 401 which covers the end part of the sensor main body 201 and the end cap 301 is formed by resin molding.

According to such a configuration, the following effects can be obtained.
(1) The end cap 301 has an insertion portion (insertion portion main body 303 a) 303 that is inserted from the opening of the sensor main body 201 toward the inside of the sensor main body 201 and whose peripheral surface is in contact with the inner wall surface of the sensor main body 201. Therefore, the resin does not flow into the sensor body 201 when the resin mold portion 401 that covers the end portion of the sensor body 201 and the end cap 301 is molded.
(2) Since the insertion portion 303 of the end cap 301 is formed with the flange portion 303b that contacts the end surface of the sensor body 201, the insertion portion 303 is moved until the flange portion 303b contacts the end surface of the sensor body 201. If the end cap 301 is inserted into the sensor body 201, the end cap 301 is positioned with respect to the sensor body 201, and the end cap 301 can be prevented from being pushed into the sensor body 201.
(3) Since the partition 305 positioned between the electrode wires 209 and 211 guided to the outside of the sensor body 201 is formed in the end cap 301, the end holes 301d and 303e are inserted into the end cap when molding. It is possible to prevent the electrode wires 209 and 211 exposed to the outside of the cap 301 from contacting and short-circuiting.

  The present invention is not limited to the above embodiment. The sensor of the above-described embodiment is a type that detects the presence or absence of contact of foreign matter by the change in capacitance, but detects the presence or absence of contact of objects by contact of electrode wires as described in the background art section. It may be a type.

It is sectional drawing of the longitudinal direction of the sensor of FIG. It is sectional drawing in the cutting line AA of FIG. It is a front view of the end cap of FIG. FIG. 4 is a bottom view of FIG. 3. FIG. 4 is a left side view of FIG. 3. FIG. 4 is a right side view of FIG. 3. It is a figure explaining a sliding door. FIG. 8 is a cross-sectional view taken along a cutting line BB in FIG. 7.

Explanation of symbols

201 Sensor body 209, 211 Electrode wire 301 End cap 303 Insertion part 303d, 303e Through hole 401 Resin mold part

Claims (3)

In a sensor that is provided on one of an opening of a vehicle body and an opening / closing member that opens and closes the opening, and an end is molded with resin,
An opening formed in the end face, and a tubular sensor body having at least one electrode wire;
The from the sensor body opening is inserted into the interior of the sensor body, the circumferential surface in contact with the inner wall surface of said sensor body, an insertion portion of the inner wall is expanded in the body of the sensor, further, An end cap formed with at least one through hole through which an electrode wire inside the sensor body is inserted and guides the electrode wire to the outside of the sensor body;
A resin mold portion covering the end of the sensor body and the end cap;
A sensor characterized by comprising:   The sensor according to claim 1, wherein a flange portion that abuts against an end surface of the sensor body is formed in the insertion portion of the end cap. The electrode wire is a plurality of wires,
A plurality of the through holes are provided corresponding to the electrode lines,
The sensor according to claim 1 or 2, wherein a partition located between the electrode wires guided to the outside of the sensor body is provided on the end cap.

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