JP2013010418A - Mounting structure of foreign matter detection sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a foreign matter detection sensor that easily protects a terminal connection of the sensor.SOLUTION: Covers 32, 33 for protecting the terminal connections 24, 25 of a pressure-sensitive sensor 21 are integrally formed with a bracket 31. The covers 32, 33 are folded, and locking pieces 32b, 33b thereof and locking projections 36, 37 of the bracket 31 are snap fitted, thereby mounting the covers on the bracket 31 to cover the terminal connections 24, 25.

Description

  The present invention relates to a mounting structure for a foreign matter detection sensor that is attached to a portion where foreign matter can be sandwiched between the opening of a vehicle body by the operation of an opening / closing member such as a door.

  2. Description of the Related Art Conventionally, an electric sliding door device that electrically moves a sliding door by a driving force of a motor or the like has a peripheral edge of the entrance / exit to prevent foreign matter from being caught between the peripheral portion of the entrance / exit of the vehicle and the slide door. Some have a foreign object detection sensor for detecting a foreign object existing between the part and the sliding door. Such a foreign object detection sensor has, for example, a plurality of electrode wires inside a long insulator as shown in Patent Document 1, and each of the end portions in the longitudinal direction of the sensor has an electrode wire. Terminal connection processing is applied.

JP 2003-177069 A

  By the way, it is desirable to protect the terminal connection portion of the sensor end from external force. Therefore, in patent document 1, the terminal connection part of a sensor is resin-molded and the protection is performed. However, since resin molding is a complicated operation, it has been desired to more easily protect the terminal connection portion of the sensor.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a foreign matter detection sensor mounting structure that can easily protect the terminal connection portion of the sensor.

  In order to solve the above-mentioned problem, the invention described in claim 1 is a vehicle opening / closing device that automatically opens and closes an opening / closing body that opens and closes a vehicle body opening. The foreign matter detection sensor is attached to a site where foreign matter can be sandwiched by and detects the foreign matter, and the foreign matter detection sensor has a long shape holding an electrode wire inside a hollow insulator. It has a terminal connection part at the end in the longitudinal direction and is attached to a vehicle attachment site via a resin bracket, and includes a cover that covers and protects the terminal connection part of the foreign object detection sensor, The gist is that the cover is attached to the bracket by snap-fit coupling between a first locking portion provided on the bracket and a second locking portion provided on the cover.

  In this invention, the cover that covers and protects the terminal connection portion of the foreign matter detection sensor is attached to the bracket by the snap-fit coupling between the second locking portion provided on the foreign matter detection sensor and the first locking portion provided on the bracket. Made. This makes it easy to attach the cover to the bracket, and it is possible to easily protect the terminal connection portion of the foreign object detection sensor. Further, since the bracket is made of resin, the degree of freedom of the shape of the locking portion formed on the bracket is high and can be easily formed.

  According to a second aspect of the present invention, in the foreign matter detection sensor mounting structure according to the first aspect, the cover is integrally formed via a connecting portion that can be bent with respect to the bracket. The gist is that the cover and the bracket are mounted by the first and second locking portions.

  In the present invention, the cover is integrally formed via the connecting portion that can be bent with respect to the bracket. And a cover and a bracket are mounted | worn with a 1st and 2nd latching | locking part with the return of a cover. Since the cover is integrally formed with the bracket in this way, the number of parts can be reduced. Further, since the cover is folded back and snap-fit to the bracket, the cover can be easily mounted.

  According to a third aspect of the present invention, in the foreign matter detection sensor mounting structure according to the first or second aspect, at least one of the cover and the bracket has a pressing portion that presses a terminal connection portion of the foreign matter detection sensor. The gist is that it is formed.

  In this invention, the pressing part which presses the terminal connection part of a foreign material detection sensor is formed in at least one of a cover and a bracket. Thereby, the terminal connection part of a foreign material detection sensor can be hold | maintained more reliably between a cover and a bracket. Further, since the reaction force when the pressing portion presses the terminal connection portion strengthens the locking of the locking portions of the bracket and the cover, the snap-fit coupling by the locking portions becomes more reliable.

  According to a fourth aspect of the present invention, in the foreign matter detection sensor mounting structure according to any one of the first to third aspects, a terminal connection portion of the foreign matter detection sensor is provided on at least one of the cover and the bracket. A housing recess is formed, and the first and second locking portions are formed so as to be positioned in the housing recess when the cover is attached to the bracket. And

  In this invention, an accommodation recess for accommodating the terminal connection portion of the foreign object detection sensor is formed in at least one of the cover and the bracket. And the 1st and 2nd latching | locking part is formed so that it may be located in an accommodation recessed part in the mounting state of the cover to a bracket. Thereby, since each latching | locking part hides in an accommodation recessed part in the mounting | wearing state of a cover, the circumference | surroundings of a cover do not become cluttered but an appearance becomes favorable.

  Invention of Claim 5 is the attachment structure of the foreign material detection sensor of any one of Claims 1-4, The terminal connection part of the said foreign material detection sensor is equipped with a connector integrally, The cover covers the terminal connection portion of the foreign matter detection sensor including the connector, and has a gist that a through hole for exposing the connector is formed in the bracket.

  In this invention, the terminal connection portion of the foreign matter detection sensor is integrally provided with a connector, the cover covers the terminal connection portion of the foreign matter detection sensor including the connector, and the bracket is formed with a through hole that exposes the connector. . Thereby, while being able to connect to the connector of the foreign matter detection sensor from the outside, it is protected by the cover including the connector, and the appearance can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, the attachment structure of the foreign material detection sensor which can protect easily the terminal connection part of a sensor can be provided.

It is a side view of the vehicle provided with the electric sliding door device. It is a block diagram which shows the electric constitution of an electric slide door apparatus. It is a perspective view for demonstrating the attachment aspect of a sensor, (a) is an attachment state, (b) is a figure which shows the state before attachment. It is sectional drawing for demonstrating the attachment aspect of the sensor in another example. It is sectional drawing for demonstrating the attachment aspect of the sensor in another example. It is a rear view of the vehicle provided with the electric sliding door device.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, a vehicle 1 having a sliding door has a configuration in which a passenger door 2 a is opened and closed by a sliding door 3 that slides in the front-rear direction on the side surface of a vehicle body 2. The sliding door device 11 performs an automatic sliding opening / closing operation of the sliding door 3.

  The electric slide door device 11 includes a slide actuator 13 that uses a slide motor 12 as a drive source. Further, the slide actuator 13 is provided with a position detection device 14 that detects the opening / closing position of the slide door 3 from the rotation detection of the slide motor 12. The electric slide door device 11 performs a slide opening / closing operation of the slide door 3 by driving the slide motor 12 based on the operation of the operation switch 15. Incidentally, the operation switch 15 is provided on a door lever 4 provided outside the passenger compartment of the slide door 3, a door lever (not shown) in the passenger compartment, a carried item (not shown) carried along with the ignition key, and the like.

  The electric slide door device 11 is provided with a pressure-sensitive sensor 21 as a foreign matter detection sensor that detects a foreign matter X existing between the front end portion 3a of the slide door 3 and the peripheral portion of the entrance 2a of the vehicle body 2. . The pressure-sensitive sensor 21 has a long cable shape, and is mounted on the slide door 3 side over the entire vertical direction of the front end portion 3a of the slide door 3.

  As shown in FIGS. 3 (a) and 3 (b), the pressure sensor 21 has a plurality of electrode wires 23 in the circumferential direction on the inner surface of a hollow insulator 22 formed in a long cylindrical shape with an insulating elastic material. The electrode wires 23 are held at regular intervals and spirally, and the electrode wires 23 are separated from each other when the hollow insulator 22 is in a normal state (when not deformed). Each end of the pressure-sensitive sensor 21 is configured as terminal connection portions 24 and 25 which are covered by terminal connection of the electrode wires 23, and a connector 26 is directly assembled to one terminal connection portion 25. It has been. The distal end portion of the connector 26 is directed in a direction orthogonal to the longitudinal direction of the pressure sensor 21.

  When such a pressure-sensitive sensor 21 is crushed in the radial direction due to pressure applied from the outside, the electrical resistance changes due to the contact of the plurality of internal electrode wires 23, and this electrical change is detected through the connector 26. Thus, it is detected that a predetermined pressure has been applied to the pressure sensor 21 (holding of the foreign matter X).

  With respect to the attachment of the pressure sensor 21, a resin-made bracket 31 having a length in the entire vertical direction is attached to the front end portion 3a of the slide door 3 with screws or the like, and the pressure sensor 21 is attached to the bracket 31. It is attached. Upper and lower covers 32, 33 are integrally formed at one end and the other end (upper end and lower end) of the bracket 31, and the covers 32, 33 are arranged in the longitudinal direction of the bracket 31 (up and down direction of the slide door 3). The terminal connection parts 24 and 25 of the pressure-sensitive sensor 21 arranged along the terminal sensor are covered to hold and protect the terminal connection parts 24 and 25.

  Covers 32 and 33 are connected to bracket 31 via connecting portions 34 and 35 formed thinner than other parts, at the upper end and lower end of the long side of the front end side of the long plate shape, The covers 32 and 33 are formed so that they can be folded back by bending the connecting portions 34 and 35. An accommodation recess 32a corresponding to the shape of the terminal connection portion 24 of the pressure sensor 21 is formed on the surface of the upper cover 32 that is folded back, and the other surface including the connector 26 is formed on the surface of the lower cover 33 that is folded back. An accommodating recess 33a corresponding to the shape of the terminal connection portion 25 is formed.

  Each of the covers 32 and 33 has a rectangular frame-shaped locking piece 32b and 33b formed on the opposite side of the connecting portions 34 and 35. On the other hand, when the housing recesses 32a and 33a of the covers 32 and 33 are folded back to a predetermined state facing the one side of the bracket 31 on one side of the bracket 31, they are in positions corresponding to the locking pieces 32b and 33b. Locking projections 36 and 37 having protrusions on the side of the tip are formed. The covers 32 and 33 are folded back to a predetermined state, and the locking projections 36 and 37 are inserted into the frame-shaped locking pieces 32b and 33b to be locked, thereby preventing the covers 32 and 33 from being opened. It has become. Further, in the bracket 31, a through hole 38 that penetrates to the other side surface is formed at a portion facing the folded back lower cover 33, and the through hole 38 is provided for fitting the distal end portion of the connector 26. ing.

  That is, the connector 26 is fitted into the through hole 38 and the pressure sensor 21 is arranged on one side surface along the long side of the front end side of the bracket 31, and the terminal connection portion 24 is placed in the receiving recess 32 a of the upper cover 32 at the upper end portion. Wrapped to be contained. The cover 32 is held in a closed state with respect to the bracket 31 by so-called snap-fit coupling that locks the locking piece 32 b of the cover 32 and the locking projection 36. Similarly, at the lower end, the terminal connection portion 25 and the connector 26 of the pressure sensor 21 are folded back so as to be accommodated in the accommodating recess 33a of the lower cover 33, and are engaged with the engaging piece 33b of the cover 33. The cover 33 is held in a closed state with respect to the bracket 31 by so-called snap-fit coupling that locks the protrusion 37. Thereby, the terminal connection parts 24 and 25 of the pressure-sensitive sensor 21 are held and protected by one side surface of the bracket 31 and the covers 32 and 33. Although a longitudinal intermediate portion of the pressure sensor 21 is not shown, a predetermined part is attached to the bracket 31.

  By the way, with the bracket 31 having the above-described configuration, by opening the covers 32 and 33, the housing recesses 32a and 33a, the locking pieces 32b and 33b, and the locking protrusions 36 and 37 of the bracket 31 are formed. The through hole 38 is included so that the front and back surfaces of the bracket 31 can be molded by a pair of molds. The through holes 36a and 37a formed around the base ends of the locking projections 36 and 37 in the bracket 31 are brackets that are used for forming the protrusions on the tip side of the locking projections 36 and 37. It is a hole formed when being inserted from the back side of 31.

  The pressure-sensitive sensor 21 is electrically connected by connecting a connector 26 exposed on the back surface side of the bracket 31 to a connector 28 of a connection line 27 extending from the control unit 41 described later, and the electric slide door device through the connection line 27. 11 control units 41.

  As shown in FIG. 2, the control unit 41 includes a door ECU 42 and an energization detection unit 43. The door ECU 42 is connected to the slide motor 12 and the position detection device 14 of the slide actuator 13 and the operation switch 15. The door ECU 42 opens the slide door 3 from the fully closed position Pc to the fully open position Po based on the operation of the operation switch 15 and the opening / closing position of the slide door 3 by the position detection device 14, and from the fully open position Po to the fully closed position. The drive control of the slide motor 12 is performed to perform the closing operation up to Pc.

  The door ECU 42 is connected to an energization detection unit 43, and the energization detection unit 43 is connected to the electrode wire 23 of the pressure sensor 21 through connectors 26 and 28. The energization detection unit 43 supplies power to the electrode wire 23 of the pressure sensor 21 and also causes an electrical change caused by the pressure sensor 21 due to a predetermined pressure, that is, contact (short circuit) of the plurality of electrode wires 23 inside. Detect.

  That is, when the foreign substance X shown in FIG. 1 is sandwiched while the slide door 3 is automatically closed by driving the slide actuator 13 (slide motor 12), the pressure sensor 21 is deformed and an electrical change occurs. The energization detection unit 43 outputs the electrical change to the door ECU 42 as a sandwiching detection signal. The door ECU 42 reverses the slide motor 12 to reverse the slide door 3 to the open side based on the input of the pinching detection signal indicating that pinching has occurred, and releases the foreign matter X pinched by the slide door 3. It also performs pinching prevention control.

Next, characteristic effects of the present embodiment will be described.
(1) The covers 32 and 33 that cover and protect the terminal connection portions 24 and 25 of the pressure-sensitive sensor 21 include locking pieces 32 b and 33 b provided on the pressure sensing sensor 21 and locking protrusions 36 and 37 provided on the bracket 31. The bracket 31 is attached by snap-fit coupling. Thereby, the attachment of the covers 32 and 33 to the bracket 31 is simplified, and the terminal connection portions 24 and 25 of the pressure sensor 21 can be easily protected. Further, since the bracket 31 is made of resin, the degree of freedom of the shape of the locking projections 36 and 37 and the covers 32 and 33 formed on the bracket 31 is high, and can be easily formed.

  (2) Covers 32 and 33 are integrally formed via connecting portions 34 and 35 that can be bent with respect to the bracket 31. Then, when the covers 32 and 33 are folded and attached by the locking pieces 32b and 33b and the locking projections 36 and 37, the predetermined folded state of the covers 32 and 33 covering the terminal connection portions 24 and 25 of the pressure sensor 21 is achieved. It is supposed to be retained. Thus, since the covers 32 and 33 are integrally formed with the bracket 31, the number of parts can be reduced. Further, since the covers 32 and 33 are folded and snap-fit coupled to the bracket 31, the covers 32 and 33 can be easily mounted.

  (3) The terminal connection parts 24 and 25 of the pressure sensor 21 are integrally provided with a connector 26, and the covers 32 and 33 cover the terminal connection parts 24 and 25 of the pressure sensor 21 including the connector 26, and the bracket 31. A through hole 38 for exposing the connector 26 is formed. Thereby, while enabling the connection of the pressure-sensitive sensor 21 to the connector 26 from the outside, the cover 32 and 33 including the connector 26 can be protected and the appearance can be improved.

In addition, you may change embodiment of this invention as follows.
In the cover 33 of the above embodiment, for example, as shown in FIG. 4, a pressing rib 33 c that presses the terminal connection portion 25 of the pressure sensor 21 may be formed on the inner surface of the housing recess 33 a. In this way, the terminal connection part 25 of the pressure sensor 21 can be more reliably held between the cover 33 and the bracket 31. Further, since the reaction force when the pressing rib 33c is pressed against the terminal connection portion 25 makes the locking of the bracket 31 (locking protrusion 37) and the cover 33 (locking piece 33b) stronger, its snap fit Bonding can be made more reliable. In addition, although it was set as the rib-shaped press rib 33c, you may comprise a press part other than a rib shape. Moreover, you may provide pressing parts, such as the press rib 33c, on the bracket 31 side instead of the cover 33 side. Moreover, you may provide a press part in both the cover 33 and the bracket 31. FIG. Further, these modes may be applied not only to the lower cover 33 but also to the upper cover 32.

  For the locking of the cover 33 and the bracket 31 in the above embodiment, for example, as shown in FIG. 5, a locking projection 33 d is provided on the inner surface of the housing recess 33 a of the cover 33, and the cover 33 is mounted on the bracket 31. The locking protrusion 37 of the bracket 31 that locks with the locking protrusion 33d may be formed so as to be positioned in the receiving recess 33a. In this way, since the locking projections 33d and 37 are hidden in the housing recess 33a in the mounted state of the cover 33, the appearance of the cover 33 can be improved without being cluttered. In addition, although it was set as the protrusion-shaped latching protrusion 33d, you may comprise a latching | locking part with a latching recessed part, a hole, etc. other than a projection shape, for example. Further, these modes may be applied not only to the lower cover 33 but also to the upper cover 32.

In the folding direction of the covers 32 and 33 of the above-described embodiment, it is the front side of FIG. 3, but may be folded back.
In the above embodiment, the housing recesses 32 a and 33 a are provided on the cover 32 and 33 side. However, the housing recess may be provided on the bracket 31 side, and the housing recess is formed across both the cover 32 and 33 and the bracket 31. It may be provided.

In the above-described embodiment, the terminal connection portions 24 and 25 are provided at both ends in the longitudinal direction of the pressure-sensitive sensor 21, but a sensor having a terminal connection portion only on one side may be used.
In the above embodiment, the pressure-sensitive sensor 21 is installed on the slide door 3 side. However, the sensor installation position is not limited to this, and for example, the sensor may be installed on the vehicle body 2 side (periphery of the entrance / exit 2a). .

  In the above embodiment, the sensor 21 is attached to the slide door 3 in order to detect pinching of the slide door 3, but for example, as shown in FIG. 6, in order to detect pinching of the back door 5 that automatically opens and closes, 21 may be applied to a mounting structure that attaches to a predetermined portion of the back door 5 via a bracket 31. Moreover, it is good also as an aspect which attaches the sensor 21 not to the back door 5, but to the peripheral part of the luggage compartment port 2b of the rear part of the vehicle body 2.

  In the above embodiment, the pressure-sensitive sensor 21 that detects the pressure acting when the foreign object X is sandwiched is used. However, the foreign object detection sensor is not limited to this, and for example, detection of a change in capacitance due to the proximity of the foreign object X Alternatively, a capacitance sensor that can be detected immediately before the foreign object X is inserted may be used.

  2a ... entrance / exit (vehicle body opening), 2b ... cargo compartment opening (vehicle body opening), 3 ... slide door (opening / closing body), 5 ... back door (opening / closing body), 21 ... pressure sensor (foreign matter detection sensor), 22 ... Hollow insulator, 23 ... Electrode wire, 24, 25 ... Terminal connection part, 26 ... Connector, 31 ... Bracket, 32, 33 ... Cover, 32a, 33a ... Housing recess, 32b, 33b ... Locking piece (second Locking portion), 33c ... pressing rib (pressing portion), 33d ... locking projection (second locking portion), 34, 35 ... coupling portion, 36, 37 ... locking projection (first locking portion), 38 ... through hole, X ... foreign matter.

Claims (5)

In a vehicular opening / closing device that automatically opens and closes an opening / closing body that opens and closes a vehicle body opening, the opening / closing body is attached to a portion where foreign objects can be held between the vehicle body opening and the foreign object is detected. A foreign matter detection sensor mounting structure,
The foreign matter detection sensor has a long shape holding an electrode wire inside a hollow insulator, has a terminal connection portion at a longitudinal end thereof, and is attached to a vehicle attachment site via a resin bracket. It can be attached
A cover that covers and protects the terminal connection portion of the foreign object detection sensor is provided, and by the snap-fit coupling between the first locking portion provided on the bracket and the second locking portion provided on the cover, the cover A foreign matter detection sensor mounting structure characterized by being mounted on a bracket. In the foreign matter detection sensor mounting structure according to claim 1,
The cover is integrally formed through a connecting portion that can be bent with respect to the bracket, and the cover and the bracket are attached by the first and second locking portions together with the folding of the cover. A foreign matter detection sensor mounting structure. In the foreign matter detection sensor mounting structure according to claim 1 or 2,
At least one of the cover and the bracket is formed with a pressing portion that presses a terminal connection portion of the foreign matter detection sensor. In the foreign matter detection sensor mounting structure according to any one of claims 1 to 3,
At least one of the cover and the bracket is formed with an accommodating recess for accommodating a terminal connection portion of the foreign object detection sensor,
The structure for mounting a foreign matter detection sensor, wherein the first and second locking portions are formed so as to be positioned in the housing recess when the cover is attached to the bracket. In the foreign matter detection sensor mounting structure according to any one of claims 1 to 4,
The terminal connection part of the foreign object detection sensor is provided with a connector integrally,
The cover includes a connector and covers a terminal connection portion of the foreign object detection sensor, and the bracket is formed with a through-hole for exposing the connector.

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