JP2010140768A - Sensor holder and touch sensor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a sufficient operational area of a pressure sensitive sensor and reduce the number of part items. <P>SOLUTION: A sensor holding part 58 is arranged on a mounting body part 51. A sensor housing part 59 is arranged between one end side of the sensor holding part 58 and the mounting body part 51. A lead wire housing part 60 is arranged between the other end side of the sensor holding part 58 and the mounting body part 51. A lead wire guiding hole 61 for guiding respective lead wires 71a, 71b to an external is arranged on the other end side of the sensor holding part 58. Thereby, the respective lead wires 71a, 71b are guided to the external through the lead wire guiding hole 61 in the middle along a longitudinal direction of the pressure sensitive sensor 70. As compared with a conventional technology, the number of part items can be reduced by omitting a cover while securing the sufficient operational area of the pressure sensing sensor 70. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sensor holder that holds a pressure-sensitive sensor formed in a cable shape that detects contact of an object to be detected, and a pressure sensor that includes these pressure-sensitive sensors and sensor holder.

  In order to prevent an obstacle (detected object) from being caught by an opening / closing body that opens and closes, an opening / closing device that automatically opens and closes an opening / closing body such as a slide door or sunroof provided in a vehicle such as an automobile. A pinch prevention function is provided. As a sensor for detecting pinching, a pressure-sensitive sensor called a cord switch is known, and this pressure-sensitive sensor is formed in a cable shape and is attached to an end of a vehicle body side opening or an end of an opening / closing body. It has become so.

  As a technique using a pressure sensor provided in such a vehicle, for example, a pressure sensing device described in Patent Document 1 is known. The pressure sensing device described in Patent Literature 1 includes a sensor main body as a pressure-sensitive sensor and a protector as a sensor holder that covers and holds the sensor main body. The sensor body includes an outer skin portion made of a cable-shaped hollow tube, and a plurality of electrodes are provided in the sensor body so as to be arranged at predetermined intervals. When an obstacle comes into contact and the protector and the outer skin part are elastically deformed, the electrodes in the outer skin part are short-circuited, and this short-circuit is detected by a computer to detect the pinching.

In order to attach the sensor body to the vehicle, the protector is attached to the bracket of the door panel (inner panel). And while extending a sensor main body from the edge part along the longitudinal direction of a protector, a lead wire is extended from the edge part along the longitudinal direction of a sensor main body, and the said lead wire is drawn in in the door panel (inner panel) of a vehicle. It is out. Since the sensor main body is exposed between the protector and the door panel, it is covered with a cover to protect the exposed portion.
Japanese Patent Laid-Open No. 11-283459 (FIG. 2)

  However, according to the pressure sensing device described in Patent Document 1 described above, the sensor main body extends from the end along the longitudinal direction of the protector to the lower side of the door panel. Therefore, a problem has arisen that a relatively long non-operating region where the sensor body does not operate is formed below the door panel. Moreover, since it is necessary to provide the door panel with a cover for protecting the exposed portion of the sensor body, the number of parts has been increased.

  An object of the present invention is to provide a sensor holder and a touch sensor that can sufficiently secure an operation region of a pressure-sensitive sensor and can reduce the number of components.

  The sensor holder of the present invention is a sensor holder for holding a pressure sensor formed in a cable shape for detecting contact of an object to be detected, an attachment main body for attaching the pressure sensor to an object, and one end Is connected to the detected object side of the mounting body part, and the other end is folded back to the object side of the mounting body part, and the engaged part provided on the object side of the mounting body part Provided at the other end of the sensor holding part, and between the engagement part engaging with the engaged part, one end side of the sensor holding part and the mounting body part, A sensor accommodating portion for accommodating a sensor, provided between the other end side of the sensor holding portion and the attachment main body portion, extends from an end portion of the pressure sensor and is folded back in the longitudinal direction of the pressure sensor. Accommodates lead wires And lead wires accommodating portion, provided on the other end side of the sensor holding portion, characterized in that it comprises a lead wire lead-out hole for leading the lead wire to the outside.

  The sensor holder of the present invention is characterized in that a hook portion for holding the lead wire is provided in at least one of the sensor holding portion and the attachment main body portion.

  The sensor holder of the present invention is characterized in that a cover tube that covers the lead wire led out to the outside is provided in the lead wire lead-out hole.

  The sensor holder of the present invention is characterized in that the object is a slide door provided on a side surface of a vehicle, and the pressure-sensitive sensor detects pinching of the object to be detected by the slide door.

  The touch sensor of the present invention is a touch sensor having a pressure sensor formed in a cable shape that detects contact of an object to be detected, and a sensor holder that holds the pressure sensor. A first conductive member having flexibility; a first lead wire provided in the first conductive member along a longitudinal direction thereof; and electrically contacting the first conductive member; and a first flexible member. A second conductive member, a second lead wire provided in the second conductive member along the longitudinal direction thereof, and electrically contacting the second conductive member; the first conductive member; and the second conductive member; The contact between the first conductive member and the second conductive member is regulated when the detected object is not in contact, and the first conductive member and the second conductive member are controlled when the detected object is in contact And an elastic member that allows contact with the sensor hob. An attachment main body for attaching the pressure sensor to the object, one end is connected to the detected object side of the attachment main body, and the other end is folded back to the object side of the attachment main body. A sensor holding part; an engaged part provided on the object side of the attachment main body part; an engaging part provided at the other end of the sensor holding part and engaged with the engaged part; and the sensor Provided between one end side of the holding part and the mounting body part, provided between the sensor housing part for housing the pressure sensor, the other end side of the sensor holding part and the mounting body part, A lead wire accommodating portion for accommodating the first lead wire and the second lead wire extended from the end portion of the pressure sensitive sensor and folded back in the longitudinal direction of the pressure sensitive sensor, and the other end side of the sensor holding portion The first lead wire and And forming a lead wire lead-out hole for leading the second lead wire to the outside.

  The touch sensor according to the present invention is characterized in that a hook portion for holding the first lead wire and the second lead wire is provided in at least one of the sensor holding portion and the attachment main body portion.

  The touch sensor according to the present invention is characterized in that a cover tube that covers the first lead wire and the second lead wire led to the outside is provided in the lead wire lead-out hole.

  In the touch sensor according to the present invention, the object is a slide door provided on a side surface of a vehicle, and the pressure-sensitive sensor detects pinching of the object to be detected by the slide door.

  According to the present invention, a sensor holding part is provided so that it can be folded back on the detected object side of the mounting body part, and a sensor housing part for housing the pressure sensitive sensor is provided between one end side of the sensor holding part and the mounting body part, Provided between the other end of the sensor holding portion and the mounting main body portion is a lead wire accommodating portion for accommodating a lead wire extending from the end of the pressure sensitive sensor and folded back in the longitudinal direction of the pressure sensitive sensor. A lead wire outlet hole for leading the lead wire to the outside is provided on the other end side of the portion. Therefore, the lead wire can be led out to the outside through the lead wire lead-out hole from the middle along the longitudinal direction of the pressure sensor, and a sufficient working area of the pressure sensor can be secured. In addition, the number of parts can be reduced by omitting the cover that has been necessary in the prior art.

  According to the present invention, since the hook portion for holding the lead wire is provided in at least one of the sensor holding portion and the attachment main body portion, the folded lead wire is hooked when the pressure sensor is assembled to the sensor holder. It can be held in the part. Therefore, twisting of the lead wire with respect to the sensor holder can be prevented, and the workability of assembling the pressure sensor to the sensor holder can be improved.

  According to the present invention, since the cover tube that covers the lead wire led to the outside is provided in the lead wire lead-out hole, the lead wire disposed between the lead wire lead-out hole and the object can be protected. . Further, the appearance can be improved by the cover tube.

  Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a side view showing a one-box type vehicle, FIG. 2 is a plan view showing a fully opened state of the switchgear provided with a touch sensor, FIG. 3 is an explanatory diagram showing a control system of the switchgear of FIG. 4 is a perspective view showing a state in which the touch sensor is attached to the slide door, FIG. 5 is an explanatory view for explaining the detailed structure of the touch sensor, and FIG. 6 is a sectional view taken along the line AA in FIG. 7 is a cross-sectional view taken along the line BB in FIG. 5, and FIGS. 8A and 8B are explanatory views illustrating the detailed structure of the pressure sensor.

  As shown in FIG. 1, the vehicle 10 is a one-box type passenger vehicle, and an opening 12 is formed on a side surface (left side of the vehicle body) of the vehicle body 11 of the vehicle 10 for passengers and the like to enter and exit. The opening 12 is provided with a slide door 13 as an opening / closing body for opening and closing the opening 12 so that the slide door 13 slides in the direction indicated by the broken line arrow in FIG. It has become.

  As shown in FIG. 2, the slide door 13 is provided with a roller assembly 14, and the slide door 13 is guided by a guide rail 15 fixed to the side surface of the vehicle body 11. It can be freely opened and closed between a fully open position indicated by a solid line and a fully closed position indicated by a two-dot chain line in the figure. A curved portion 15a that curves toward the vehicle interior side (upper side in the figure) is provided on the vehicle body front side of the guide rail 15, and the slide door 13 is guided by the roller assembly 14 being guided by the curved portion 15a. At the end of the closing operation, it is drawn into the inside of the vehicle body 11 and closed so as to be in the same plane as the side surface of the vehicle body 11. That is, the slide door 13 moves according to the shape of the guide rail 15 formed in a substantially J shape.

  Here, although not shown, the roller assembly 14 is also provided in the upper and lower portions (upper portion and lower portion) of the front end portion of the slide door 13, and further, the upper and lower portions of the opening portion 12 of the vehicle body 11 corresponding thereto. Each is also provided with a guide rail. In this way, the sliding door 13 is supported at a total of three locations with respect to the vehicle body 11, and a stable opening / closing operation with respect to the vehicle body 11 is possible.

  As shown in FIG. 2, the vehicle body 11 is equipped with an opening / closing device 20 for automatically opening and closing the sliding door 13. The opening / closing device 20 includes a drive unit 21 that is fixed to the inside of the vehicle body 11 adjacent to a substantially central portion of the guide rail 15 in the longitudinal direction of the vehicle body, and a pair of the drive unit 21 toward the vehicle body front side and the rear side. Cables 22a and 22b are drawn out.

  A cable 22a drawn from the drive unit 21 to the front side of the vehicle body is connected to the roller assembly 14 from the front side of the vehicle body via a reversing pulley 23a provided at the front end of the guide rail 15, and is pulled out to the rear side of the vehicle body. Is connected to the roller assembly 14 from the rear side of the vehicle body via a reversing pulley 23b provided at the rear end of the guide rail 15.

  The drive unit 21 is driven so as to wind or send out the cables 22a and 22b. By driving the drive unit 21 and moving the cables 22a and 22b, the slide door 13 is moved to the vehicle body front side or rear side. It is automatically opened and closed by being pulled by the cables 22a and 22b. That is, the switchgear 20 employs a so-called cable type switchgear.

  As shown in FIG. 3, the drive unit 21 includes an electric motor 24 as a drive source and a speed reducer 25 connected to the electric motor 24, and the rotation of the electric motor 24 is performed by the speed reducer 25 with a predetermined rotation. The output speed is reduced to a number and output from the output shaft 26. In addition, as the electric motor 24, what can rotate in the forward / reverse direction, such as a DC motor with a brush or a brushless DC motor, can be used.

  A drum 27 formed in a substantially cylindrical shape is fixed to the output shaft 26, and the cables 22 a and 22 b are wound around the outer peripheral surface of the drum 27 a plurality of times. As a result, when the electric motor 24 rotates in the forward direction, the drum 27 rotates clockwise, the cable 22a on the closing side is wound around the drum 27, and the sliding door 13 is pulled by the cable 22a to perform the closing operation. On the contrary, when the electric motor 24 reverses, the drum 27 rotates counterclockwise, the open cable 22b is wound around the drum 27, and the sliding door 13 is pulled by the cable 22b to open.

  The speed reducer 25 has an electromagnetic clutch (not shown). When the sliding door 13 is manually opened and closed, the electromagnetic clutch is turned off and the power transmission path between the electric motor 24 and the output shaft 26 is set. Thus, the slide door 13 can be opened and closed manually with a light load. Here, a tensioner mechanism (not shown) is provided between the drum 27 and the slide door 13, and the tension of each cable 22a, 22b is always kept constant by the tensioner mechanism.

  The speed reducer 25 includes an annular multipolar magnet 28 having a large number of magnetic poles magnetized in the circumferential direction, and the multipolar magnet 28 rotates integrally with the output shaft 26. In addition, two Hall ICs 29a and 29b are arranged in the vicinity of the multipolar magnetized magnet 28 of the speed reducer 25 with a predetermined phase difference therebetween. When the multi-pole magnetized magnet 28 rotates as the output shaft 26 rotates, a pulse signal with a predetermined period proportional to the rotation speed of the output shaft 26 is output from each Hall IC 29a, 29b.

  In order to control the rotation of the electric motor 24 in the forward and reverse directions, a control device (controller) 30 is electrically connected to the electric motor 24 via wiring. The control device 30 has a function as a so-called microcomputer having a microprocessor (CPU), a memory such as a ROM and a RAM (not shown), and the like, and sets the rotation direction and the rotation speed of the electric motor 24. Thus, the operation of the electric motor 24 is controlled.

  The Hall ICs 29a and 29b are electrically connected to the control device 30 via wiring, and the control device 30 is connected to the output shaft 26 based on a pulse signal having a predetermined period input from the Hall ICs 29a and 29b. The number of rotations, that is, the opening / closing speed of the slide door 13 is detected. The control device 30 detects the rotational direction of the electric motor 24, that is, the moving direction of the slide door 13, based on the appearance timing of the pulse signals from the Hall ICs 29a and 29b. Furthermore, the control device 30 detects the open / close position of the slide door 13 by counting the pulse signals from the Hall ICs 29a and 29b starting from the time when the slide door 13 is at the reference position (for example, the fully closed position). It has become.

  In order to command the opening / closing operation of the sliding door 13, the sliding door 13 is provided with a door handle 31 as an opening / closing switch. When the door handle 31 is operated by an occupant or the like, a command signal (trigger signal) is input to the control device 30. That is, the control device 30 calculates the opening / closing position, opening / closing speed, and the like of the slide door 13 based on the input of the command signal from the door handle 31 using the control program stored in the memory, and performs electric operation based on the calculation result. The rotation control of the motor 24 (open / close control of the slide door 13) is executed.

  For example, when the door handle 31 is operated when the slide door 13 is in the fully open state, the control device 30 receives the command signal from the door handle 31 and the slide door 13 is in the fully open position. Drive forward and move the slide door 13 in the fully closed direction. On the contrary, when the door handle 31 is operated when the slide door 13 is in the fully closed state, the control device 30 receives the command signal from the door handle 31 and the slide door 13 is in the fully closed position. Therefore, the electric motor 24 is driven in reverse to move the slide door 13 in the fully open direction.

  However, the door handle 31 is not limited to the two-position switch that can be switched to the ON-OFF state (two positions) as described above, but, for example, a three-position switch that can be switched to the OPEN-OFF-CLOSE state (three positions). It can also be adopted.

  As shown in FIG. 1, a touch sensor 40 is attached to the front side of the vehicle body of the slide door 13, that is, the end portion that becomes the traveling direction side when the slide door 13 is closed. The touch sensor 40 extends over substantially the entire area of the slide door 13 in the vertical direction in the figure, and the touch sensor 40 is in contact with the obstacle (detected object) DA such as a load or the obstacle DA caused by the slide door 13. It is provided for detecting the pinching of.

  As shown in FIG. 2, the touch sensor 40 is attached to an attachment stay 13 a provided integrally with the slide door (object) 13. The mounting stay 13a is formed in a corrugated shape following the shape of the slide door 13, that is, the body shape of the vehicle body 11, and the touch sensor 40 can be deformed so as to be attached to the corrugated mounting stay 13a. (See FIG. 4).

  The touch sensor 40 includes a sensor holder 50 and a pressure sensitive sensor 70. The pressure-sensitive sensor 70 is formed in a cable shape, and is electrically connected to the control device 30 through wiring as shown in FIG. As a result, a short circuit signal generated when the pressure sensitive sensor 70 is elastically deformed is sent to the control device 30, and the control device 30 detects contact between the slide door 13 and the obstacle DA, or pinching of the obstacle DA by the slide door 13. can do.

  When receiving a short circuit signal from the pressure sensor 70, the control device 30 generates a warning sound from a piezoelectric sounder or the like (not shown), and further stops or reversely rotates the electric motor 24, for example. It comes to perform control.

  Hereinafter, the structure of the touch sensor 40 will be described in detail with reference to FIGS.

  The touch sensor 40 includes a sensor holder 50 that covers and surrounds the pressure sensor 70 to protect and hold the pressure sensor 70 and attach the pressure sensor 70 to the mounting stay 13a. The sensor holder 50 is formed in a long shape with a predetermined thickness so as to have flexibility by extruding an insulator such as rubber.

  The sensor holder 50 includes an attachment main body 51 for attaching the pressure sensor 70 to the attachment stay 13a. The attachment main body 51 has a substantially U-shaped cross section as shown in FIGS. 6 and 7, and is attached to the attachment stay 13a so as to straddle the attachment stay 13a.

  The attachment main body 51 includes a horizontal portion 52 extending in a direction orthogonal to the extending direction of the attachment stay 13a, and a first leg portion 53 and a second leg portion 54 that are integrally provided on both end sides of the horizontal portion 52, respectively. Is formed. The leg portions 53 and 54 are suspended from both ends of the horizontal portion 52, and the leg portions 53 and 54 are opposed to each other with the attachment stay 13a interposed therebetween.

  A pair of retaining pieces 53a for preventing the touch sensor 40 from being detached from the mounting stay 13a is integrally provided on the mounting stay 13a side of the first leg portion 53, and each retaining piece 53a is provided on the first leg 53a. It is elastically deformed between the portion 53 and the mounting stay 13a, and the tip end side of each retaining piece 53a extends toward the horizontal portion 52 side.

  A concave portion (engaged portion) 54a into which the convex portion 58a of the sensor holding portion 58 enters is provided on the slide door 13 side of the attachment main body portion 51 and on the attachment stay 13a side of the second leg portion 54. By fitting the convex portion 58 a of the sensor holding portion 58 into the concave portion 54 a, the convex portion 58 a side of the sensor holding portion 58 can be firmly fixed to the second leg portion 54.

  A long metal core member 55 extending in the longitudinal direction of the sensor holder 50 is provided inside the attachment main body 51. The metal core member 55 is formed into a substantially U-shaped cross section by pressing a thin steel plate or the like, and is embedded in the attachment main body 51 when the sensor holder 50 is extruded. The cored bar member 55 can be deformed following the corrugated shape of the mounting stay 13a (see FIG. 4) while reinforcing the mounting main body 51.

  A first wall portion 56 and a second wall portion 57 are integrally provided so as to extend in a substantially vertical direction on the detected object side of the attachment main body portion 51, that is, on the side opposite to the attachment stay 13 a side. The wall portions 56 and 57 face each other with the pressure-sensitive sensor 70 interposed therebetween, and the protruding height of the wall portions 56 and 57 from the attachment main body portion 51 is that of the first wall portion 56 (h1). The height dimension is set higher than the second wall portion 57 (h2) (h1> h2). Here, the height dimension h1 of the first wall portion 56 is set to be larger than the radial dimension of the pressure-sensitive sensor 70, and the height dimension h2 of the second wall portion 57 is substantially the same as the radial dimension of the pressure-sensitive sensor 70. Set to dimensions.

  The first wall portion 56 is disposed at a substantially central portion of the horizontal portion 52, and is formed so as to gradually become thinner as the distance from the horizontal portion 52 increases. The thickness dimension of the first wall portion 56 is thicker than the thickness dimension t of the sensor holding portion 58 within the range of the height dimension h1 of the first wall portion 56. The rigidity is higher than the rigidity of the sensor holding portion 58.

  The second wall portion 57 is disposed on the second leg portion 54 side of the horizontal portion 52, and is formed so as to be gradually thinned away from the horizontal portion 52. The thickness dimension of the second wall portion 57 is thicker than the thickness dimension t of the sensor holding portion 58 within the range of the height dimension h2 of the second wall portion 57. The rigidity is also higher than the rigidity of the sensor holding portion 58.

  On the distal end side (the upper side in FIGS. 6 and 7) of the first wall portion 56, the wall thickness dimension t is set to be thinner than the wall thickness dimensions of the wall portions 56 and 57, that is, the rigidity of the wall portions 56 and 57 One end of the sensor holding part 58 set to a low rigidity is connected. One end of the sensor holding portion 58 is connected to the horizontal portion 52 via the first wall portion 56, and the other end of the sensor holding portion 58 is folded back to the second leg portion 54 side across the second wall portion 57. Yes. Inside the one end side of the sensor holding part 58, a sensor accommodating part 59 for accommodating the pressure sensitive sensor 70 is provided.

  A convex portion (engaging portion) 58a that engages with the concave portion 54a of the second leg portion 54 is integrally provided at the other end of the sensor holding portion 58, and the convex portion 58a can enter the concave portion 54a. It is formed in the same shape. The convex portion 58a is fitted into the concave portion 54a by further folding back the other end of the sensor holding portion 58.

  A pair of retaining pieces 58b for preventing the touch sensor 40 from coming off from the mounting stay 13a are integrally provided between the convex portion 58a side of the sensor holding portion 58 and the mounting stay 13a. 58b is elastically deformed between the sensor holding part 58 and the mounting stay 13a, and the leading end side of each retaining piece 58b is extended toward the horizontal part 52 side.

  In this way, by attaching the touch sensor 40 to the mounting stay 13a in a state where the convex portion 58a of the sensor holding portion 58 is fitted in the concave portion 54a of the second leg portion 54, the convex portion is formed by the mounting stay 13a. 58a is pressed by the recessed part 54a, As a result, the convex part 58a and the recessed part 54a are fixed firmly, without removing. Further, there is no deviation (slack) between the convex portion 58a and the concave portion 54a due to the step engagement.

  FIG. 5 is a view of the touch sensor 40 as viewed from the side in the longitudinal direction. A first lead wire (from the end of the pressure-sensitive sensor 70) is provided on the vehicle body lower side (right side in the drawing) of the touch sensor 40. Wiring) 71a and second lead wire (wiring) 71b are arranged. The portions of the lead wires 71a and 71b extending from the end of the pressure sensor 70 are covered with an insulating film (not shown), and the leading ends of the lead wires 71a and 71b are electrically connected to the control device 30. Connected.

  Each of the lead wires 71 a and 71 b is folded back 180 ° at the end of the pressure sensor 70 and extends in the longitudinal direction of the pressure sensor 70. As shown in FIG. 7, the folded lead wires 71 a and 71 b are connected to the second leg portion 54 between the other end side (the convex portion 58 a side) of the sensor holding portion 58 and the second leg portion 54. Is housed in.

  The lead wire accommodating portion 60 sandwiches the lead wires 71a and 71b between the sensor holding portion 58 and the second leg portion 54, and the convex portion 58a of the sensor holding portion 58 is fitted into the concave portion 54a of the second leg portion 54. It is formed by doing. That is, the lead wire accommodating portion 60 is formed by elastic deformation of the sensor holding portion 58. As shown in FIG. 5, the length of the lead wire accommodating portion 60 is set to be a distance L1 from the lower side of the vehicle body of the touch sensor 40 toward the longitudinal direction of the touch sensor 40. Lead wire lead-out holes 61 for leading the lead wires 71a and 71b to the outside of the sensor holding portion 58 are formed at locations corresponding to the distance L1 from the lower side of the vehicle body. Note that the lead wire outlet hole 61 is also provided on the other end side (the convex portion 58a side) of the sensor holding portion 58, as shown in FIG.

  One end of a cover tube 62 that covers the lead wires 71 a and 71 b led to the outside is attached to the lead wire lead-out hole 61. Similar to the sensor holder 50, the cover tube 62 is formed in a hollow shape by a flexible material such as rubber. The cover tube 62 protects the lead wires 71a and 71b and improves the appearance of the portions of the lead wires 71a and 71b led out from the sensor holder 50.

  As shown in FIG. 4, the other end of the cover tube 62 is attached to a wiring insertion hole 13 b provided near the touch sensor 40 on the vehicle body lower side of the slide door 13. A rubber annular grommet 63 is mounted between the wiring insertion hole 13b and the cover tube 62, and the annular grommet 63 enters rainwater, dust, or the like into the slide door 13 (inside the door panel). Is preventing.

  After forming the sensor holder 50, the cover tube 62 is attached to the lead wire outlet hole 61 of the sensor holder 50 by outsert molding or the like in a separate process. The attachment position and attachment direction of the cover tube 62 to the sensor holder 50 are determined in accordance with the length dimension (distance L1) of the lead wire accommodating portion 60 according to the shape and specifications of the slide door 13. Here, the attachment of the cover tube 62 to the sensor holder 50 is not limited to outsert molding or the like, and can be attached by an adhesive or the like.

  A pressure sensor 70 is housed in the sensor housing portion 59, and the center position of the pressure sensor 70 is offset by a predetermined amount from the center position of the mounting stay 13a to the vehicle interior side of the vehicle body 11 (right side in FIGS. 6 and 7). Has been. In this way, the pressure sensor 70 is offset by a predetermined amount from the center position of the mounting stay 13a, so that the touch sensor 40 is retracted when the slide door 13 is pulled into the vehicle body 11 at the end of the closing operation of the slide door 13. Is prevented from contacting the pillar 11a (see FIG. 1) forming the vehicle body 11. Thereby, unnecessary elastic deformation of the touch sensor 40 is avoided, and malfunction or early deterioration of the touch sensor 40 is prevented.

  As shown in FIG. 5, a pair of sealing rubbers 64 are provided on both end sides along the longitudinal direction of the sensor holder 50, and the sensor holder 50 is subjected to terminal processing by each sealing rubber 64, thereby The entry of rainwater, dust, or the like into the holder 50 is prevented. Each sealing rubber 64 is integrated with the sensor holder 50 by an adhesive means such as vulcanization adhesion.

  As shown in FIGS. 8A and 8B, the pressure-sensitive sensor 70 has an inner electrode (first conductive member) 72 and an outer electrode (second conductive member) 73, and the inner electrode 72 is For example, it is formed in a linear shape (cylindrical shape) with a flexible conductor such as conductive rubber (ethylene-propylene-diene rubber (EPDM)). The outer electrode 73 is formed in a hollow shape (tube shape) by a flexible conductor such as conductive rubber like the inner electrode 72, and is arranged coaxially with the inner electrode 72 on the outer peripheral side of the inner electrode 72. Has been.

  Between the inner electrode 72 and the outer electrode 73, for example, three spacer members (elastic members) 74 formed in a spiral shape by an insulator such as rubber are disposed. A gap is formed between the outer electrode 73 and the outer electrode 73. The spacer members 74 are arranged at equal intervals in the circumferential direction, so that the gap dimension between the inner electrode 72 and the outer electrode 73 at each position in the longitudinal direction and the circumferential direction of the pressure sensor 70 is substantially reduced. It is trying to make it uniform.

  During normal times when the external force F indicated by the broken line arrow is not applied, that is, when the obstacle DA (see FIG. 1) is not in contact, the inner electrode 72 and the outer electrode 73 are regulated from contact with each other by the spacer members 74. It is electrically insulated. On the other hand, when an external force F is applied, that is, when the obstacle DA is in contact, the contact between the inner electrode 72 and the outer electrode 73 through the gap between the adjacent spacer members 74 while the spacer members 74 are elastically deformed. Is acceptable.

  A first lead wire (inner conducting wire) 71a is embedded in the inner electrode 72 along the longitudinal direction thereof. The first lead wire 71 a is in contact with and electrically connected to the inner electrode 72, penetrates the inner electrode 72 in the longitudinal direction, and one end thereof is electrically connected to the control device 30.

  Three second lead wires (outer conducting wires) 71b are embedded in the outer electrode 73 at equal intervals in the circumferential direction. As shown in FIG. 8A, the second lead wires 71b are positioned between the spacer members 74 arranged around the first lead wire 71a, and spiral at the same pitch as the spacer members 74. Arranged in a shape. That is, the spacer members 74 and the second lead wires 71b are arranged alternately and at equal intervals along the circumferential direction around the first lead wire 71a.

  Each of the second lead wires 71b is in contact with and electrically connected to the outer electrode 73, penetrates the outer electrode 73 in the longitudinal direction, and one end thereof is electrically connected to the control device 30. When the outer electrode 73 comes into contact with the inner electrode 72 by the external force F, each second lead wire 71 b is short-circuited to the first lead wire 71 a via the outer electrode 73 and the inner electrode 72.

  Next, the assembly procedure of the touch sensor 40 formed as described above will be described in detail with reference to the drawings. FIGS. 9A and 9B are explanatory views illustrating the assembly procedure of the touch sensor.

  As shown in FIG. 9A, first, a sensor holder 50 formed in a predetermined shape by extrusion molding is prepared, and a cover tube 62 formed in a separate process is prepared. Next, as shown by a broken line arrow (1), one end of the cover tube 62 is attached by outsert molding so as to correspond to the lead wire outlet hole 61 of the sensor holding portion 58 (cover tube attaching step).

  Next, a pressure-sensitive sensor 70 assembled in a separate process is prepared, and the pressure-sensitive sensor 70 is mounted between the first wall portion 56 and the second wall portion 57 as indicated by a broken line arrow (2). At this time, the pressure-sensitive sensor 70 is gradually mounted between the wall portions 56 and 57 from one end side to the other end side. When the other end side of the pressure sensor 70 is mounted between the wall portions 56 and 57, the one end side of the pressure sensor 70 is supported by the second wall portion 57. Will not fall off. Further, the pressure sensor 70 is not twisted or bent (pressure sensor temporary holding step).

  Thereafter, as indicated by a broken line arrow (3) in FIG. 9B, the sensor holding portion 58 is folded back toward the second leg portion 54 so as to wrap the pressure sensor 70. At this time, along with the folding of the sensor holding portion 58, the leading ends of the lead wires 71a and 71b are inserted into the lead wire outlet holes 61 and the cover tube 62 as indicated by broken line arrows (4). Then, along with the insertion of each lead wire 71a, 71b into the lead wire outlet hole 61 and the cover tube 62, as shown by the broken line arrow (5), the convex portion 58a side of the sensor holding portion 58 is opened. As indicated by the broken line arrow (6), the convex portion 58a of the sensor holding portion 58 is fixed to the concave portion 54a of the second leg portion 54.

  Accordingly, as shown in FIG. 7, the lead wire accommodating portion 60 is formed, and the lead wires 71 a and 71 b can be accommodated in the lead wire accommodating portion 60. Here, in order to prevent the lead wires 71a and 71b from being twisted or bent in the lead wire housing portion 60, the lead wires 71a and 71b extended from the other end of the cover tube 62 are Pulling is performed with a predetermined load (a load that does not break the lead wires 71a and 71b) (pressure-sensitive sensor holding step).

  As described above, as shown in FIGS. 6 and 7, the sensor housing portion 59 is formed inside the sensor holding portion 58 so that the pressure-sensitive sensor 70 is formed in the sensor housing portion 59. Can be accommodated, and the assembly of the touch sensor 40 is completed.

  In order to attach the completed touch sensor 40 to the slide door 13, the mounting stay 13 a enters between the first leg 53 of the touch sensor 40 and the second leg 54 including the convex part 58 a of the sensor holding part 58. Like that. At this time, the retaining pieces 53a and 58b are elastically deformed between the attachment stays 13a (see FIGS. 6 and 7).

  Next, the leading ends of the lead wires 71 a and 71 b and the other end of the cover tube 62 are inserted into the wiring insertion hole 13 b (annular grommet 63) of the slide door 13. And the front end side of each lead wire 71a, 71b is each electrically connected to the predetermined | prescribed interface of the control apparatus 30, respectively, Thereby, the attachment to the vehicle body 11 of the touch sensor 40 is completed (touch sensor attachment process).

  Next, detection of the contact (clamping) of the obstacle DA by the pressure sensor 70 will be described.

  When the sliding door 13 is closed, for example, when the obstacle DA contacts the end of the sensor holder 50 as shown in FIG. 1, the outer electrode 73 of the sensor holder 50 and the pressure sensor 70 is deformed. The outer electrode 73 contacts the inner electrode 72 (see the broken line portion in FIG. 8A). Here, the deformation amount of the pressure-sensitive sensor 70 is restricted to a predetermined amount by the wall portions 56 and 57 (see FIGS. 6 and 7) of the sensor holder 50, whereby the pressure-sensitive sensor 70 is elastically deformed more than necessary. Thus, disconnection of the lead wires 71a and 71b is suppressed.

  When the outer electrode 73 contacts the inner electrode 72, the lead wires 71a and 71b are short-circuited via the electrodes 72 and 73, and a short-circuit current flows through the lead wires 71a and 71b. The short circuit current becomes a detection signal, and the control device 30 detects the contact of the obstacle DA. Thereafter, the control device 30 stops or opens the slide door 13, thereby preventing the obstacle DA from being caught by the slide door 13.

  Since the pressure-sensitive sensor 70 is provided with the substantially uniform gap between the inner electrode 72 and the outer electrode 73 as described above, the obstacle DA is disposed in the circumferential direction with respect to the pressure-sensitive sensor 70. Regardless of the direction of contact, there is no significant difference in detection sensitivity, and the pinching detection accuracy does not decrease.

  As described in detail above, according to the touch sensor 40 (sensor holder 50) according to the first embodiment, the sensor holding portion 58 is provided in the attachment main body portion 51, and one end side of the sensor holding portion 58 and the attachment main body portion 51 are provided. Between the other end side of the sensor holding portion 58 and the attachment main body portion 51, and the lead wire 71a on the other end side of the sensor holding portion 58. A lead wire outlet hole 61 is provided for leading 71b to the outside.

  Therefore, the lead wires 71a and 71b can be led out to the outside through the lead wire lead-out hole 61 from the middle along the longitudinal direction of the pressure sensor 70, and the operating region of the pressure sensor 70 can be compared with the conventional technique. Can be secured sufficiently. In addition, the number of parts can be reduced by omitting the cover that has been necessary in the prior art, thereby reducing the manufacturing cost and improving the workability of the maintenance work.

  Further, according to the touch sensor 40 (sensor holder 50) according to the first embodiment, the lead wire lead-out hole 61 is provided with the cover tube 62 that covers the lead wires 71a and 71b led to the outside. The lead wires 71a and 71b disposed between the lead wire outlet hole 61 and the slide door 13 can be protected. Further, the appearance can be improved by the cover tube 62.

  Next, a second embodiment of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the part which has the same function as 1st Embodiment mentioned above, and the detailed description is abbreviate | omitted.

  10 is an explanatory diagram for explaining the detailed structure of the touch sensor according to the second embodiment, FIG. 11 is a sectional view taken along the line CC in FIG. 10, and FIG. 12 is taken along the line DD in FIG. Each of the cross-sectional views is shown.

  The touch sensor 40 according to the second embodiment includes three hook portions 80 on the second leg portion 54 side of the sensor holding portion 58 so as to be arranged at predetermined intervals along the longitudinal direction of the touch sensor 40. For example, each hook portion 80 is attached to a predetermined portion of the sensor holding portion 58 when the lead wire outlet hole 61 is formed in the sensor holding portion 58. Each hook portion 80 is disposed inside the lead wire accommodating portion 60 and holds the lead wires 71a and 71b. As shown in FIG. 10, the length dimension of the lead wire accommodating portion 60 is set to be a distance L2 from the lower side of the vehicle body of the touch sensor 40 toward the longitudinal direction of the touch sensor 40 (L2> L1).

  As shown in FIG. 12, each hook portion 80 includes a main body portion 81, a first side portion 82, and a second side portion 83, and one end of each side portion 82, 83 is on both end sides of the main body portion 81 ( The upper and lower sides in the figure are integrally connected. The other end of the first side portion 82 is integrally connected to the sensor holding portion 58, and the other end of the second side portion 83 is not connected to the sensor holding portion 58. That is, the second side portion 83 side of each hook portion 80 is opened by elastically deforming each hook portion 80, and each lead wire 71a, 71b is sandwiched from the opening portion, so that each lead The wires 71a and 71b can be hooked on the hook portions 80.

  The procedure for hooking the lead wires 71a and 71b to the hook portions 80 is performed in a step before the sensor holding portion 58 is folded back toward the second leg portion 54. That is, the lead wires 71a and 71b are hooked on the hook portions 80 between the step shown by the broken line arrow (2) in FIG. 9A and the step shown by the broken line arrow (3) in FIG. “Lead wire hooking step” is provided.

  Also in the touch sensor 40 (sensor holder 50) according to the second embodiment configured as described above, the same operational effects as those of the above-described first embodiment can be obtained. In addition to this, in the second embodiment, the hook portions 80 for holding the lead wires 71a and 71b are provided in the sensor holding portion 58. Therefore, when the pressure-sensitive sensor 70 is assembled to the sensor holder 50, it is folded back. Each lead wire 71a, 71b can be held by each hook portion 80.

  Therefore, even if the length dimension of the lead wire accommodating portion 60 is set to be longer than that of the first embodiment (see FIGS. 5 and 10) like the distance L2, the lead wires 71a and 71b Twist etc. with respect to the sensor holder 50 can be prevented, and the workability of assembling the pressure sensor 70 to the sensor holder 50 can be improved.

  It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. For example, in each of the above embodiments, the touch sensor 40 is attached to the mounting stay 13a of the slide door (object) 13. However, the present invention is not limited to this, and the opening 12 (object) of the vehicle body 11 is not limited thereto. The touch sensor 40 can also be attached to an attachment stay (not shown) provided on the object side.

  In each of the above embodiments, the slide door 13 is shown as the object. However, the present invention is not limited to this, and the opening and closing body such as a hinged door, back door, window glass, sunroof, trunk lid, etc. And the touch sensor 40 may be attached to these objects. Moreover, you may make it attach the touch sensor 40 to the edge part of the said opening part by making the opening part opened and closed by these opening / closing bodies into a target object.

  Further, in each of the above embodiments, the pressure-sensitive sensor has been shown to be elastically deformed by contact with the obstacle DA and generate a short-circuit signal due to a short circuit between the lead wires 71a and 71b. For example, a piezoelectric element (piezo element) that generates a predetermined voltage when an external force is applied can be used as the pressure-sensitive sensor.

  In each of the above embodiments, when the touch sensor 40 is assembled, the cover tube 62 is attached to the lead wire outlet hole 61 in advance, and then the lead wires 71a and 71b are connected to the lead wire outlet hole 61 and the cover tube. Although what is inserted in 62 is shown, the present invention is not limited to this. For example, the convex portion 58 a is fixed to the concave portion 54 a while inserting the lead wires 71 a and 71 b into the lead wire outlet hole 61, and then the lead wires 71 a and 71 b are inserted into the cover tube 62 and into the lead wire outlet hole 61. A cover tube 62 may be attached. In this case, the load at the time of pulling each lead wire 71a, 71b can be made smaller.

  Further, in the second embodiment, each hook portion 80 is provided on the second leg portion 54 side of the sensor holding portion 58. However, the present invention is not limited to this, and the second leg portion 54 is not limited thereto. It can also be provided on the sensor holding part 58 side. In this case, since the lead wires 71a and 71b can be aligned in the longitudinal direction of the second leg portion 54 before the sensor holding portion 58 is folded back, the assembling workability can be further improved.

  Moreover, in the said 2nd Embodiment, although what provided three hook parts 80 along the longitudinal direction of the lead wire accommodating part 60 was shown, this invention is not limited to this, The lead wire accommodating part 60 is shown. It is possible to provide two or less or four or more according to the length dimension of each of the lead wires 71a and 71b and the bending rigidity of each lead wire 71a and 71b.

It is a side view showing a one-box type vehicle. It is a top view which shows the full open state of the switchgear provided with the touch sensor. It is explanatory drawing which shows the control system of the switchgear of FIG. It is a perspective view which shows the attachment state to the sliding door of a touch sensor. It is explanatory drawing explaining the detailed structure of a touch sensor. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the BB line of FIG. (A), (b) is explanatory drawing explaining the detailed structure of a pressure-sensitive sensor. (A), (b) is explanatory drawing explaining the assembly procedure of a touch sensor. It is explanatory drawing explaining the detailed structure of the touch sensor which concerns on 2nd Embodiment. It is sectional drawing which follows the CC line of FIG. It is sectional drawing which follows the DD line | wire of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle 11 Car body 11a Pillar 12 Opening part 13 Sliding door (object)
13a Mounting stay 13b Wiring insertion hole 14 Roller assembly 15 Guide rail 15a Bending portion 20 Opening / closing device 21 Drive unit 22a, 22b Cable 23a, 23b Reverse pulley 24 Electric motor 25 Reduction gear 26 Output shaft 27 Drum 28 Multipolar magnetized magnet 29a, 29b Hall IC
30 Control Device 31 Door Handle 40 Touch Sensor 50 Sensor Holder 51 Mounting Main Body 52 Horizontal Part (Mounting Main Body)
53 1st leg (mounting body)
53a Retaining piece 54 Second leg (mounting body)
54a Concavity (engaged part)
55 Core metal member 56 First wall portion 57 Second wall portion 58 Sensor holding portion 58a Convex portion (engaging portion)
58b Retaining piece 59 Sensor housing portion 60 Lead wire housing portion 61 Lead wire outlet hole 62 Cover tube 63 Annular grommet 64 Sealing rubber 70 Pressure sensor 71a First lead wire (lead wire)
71b Second lead wire (lead wire)
72 Inner electrode (first conductive member)
73 Outer electrode (second conductive member)
74 Spacer member (elastic member)
80 Hook part 81 Body part (Hook part)
82 1st side part (hook part)
83 2nd side (hook part)
DA obstacle (detected object)
F external force

Claims (8)

A sensor holder for holding a pressure-sensitive sensor formed in a cable shape for detecting contact of an object to be detected,
An attachment body for attaching the pressure sensitive sensor to an object;
One end is connected to the detected object side of the attachment main body, and the other end is folded back to the object side of the attachment main body,
An engaged portion provided on the object side of the attachment main body;
An engaging portion provided at the other end of the sensor holding portion and engaged with the engaged portion;
A sensor accommodating portion that is provided between one end side of the sensor holding portion and the attachment main body, and accommodates the pressure-sensitive sensor;
A lead wire that is provided between the other end side of the sensor holding portion and the attachment main body portion and accommodates a lead wire that extends from the end portion of the pressure sensor and is folded back in the longitudinal direction of the pressure sensor. A containment section;
A sensor holder, comprising: a lead wire outlet hole provided on the other end side of the sensor holding portion for leading the lead wire to the outside.   The sensor holder according to claim 1, wherein a hook portion for holding the lead wire is provided in at least one of the sensor holding portion and the attachment main body portion.   3. The sensor holder according to claim 1, wherein a cover tube that covers the lead wire led out to the outside is provided in the lead wire lead-out hole.   4. The sensor holder according to claim 1, wherein the object is a slide door provided on a side surface of a vehicle, and the pressure-sensitive sensor detects pinching of the object to be detected by the slide door. 5. A sensor holder characterized by that. A touch sensor having a pressure sensor formed in a cable shape for detecting contact of an object to be detected, and a sensor holder for holding the pressure sensor,
The pressure sensor,
A flexible first conductive member;
A first lead wire provided in the first conductive member along a longitudinal direction thereof and electrically contacting the first conductive member;
A flexible second conductive member;
A second lead wire provided in the second conductive member along the longitudinal direction thereof and electrically contacting the second conductive member;
Provided between the first conductive member and the second conductive member, the contact between the first conductive member and the second conductive member is regulated when the detected object is not in contact, and the detected object is contacted Sometimes formed from an elastic member that allows contact between the first conductive member and the second conductive member,
The sensor holder,
An attachment body for attaching the pressure sensitive sensor to an object;
One end is connected to the detected object side of the attachment main body, and the other end is folded back to the object side of the attachment main body,
An engaged portion provided on the object side of the attachment main body;
An engaging portion provided at the other end of the sensor holding portion and engaged with the engaged portion;
A sensor accommodating portion that is provided between one end side of the sensor holding portion and the attachment main body, and accommodates the pressure-sensitive sensor;
The first lead wire provided between the other end side of the sensor holding portion and the attachment main body portion, extending from the end portion of the pressure sensor and folded back in the longitudinal direction of the pressure sensor, and A lead wire housing portion for housing the second lead wire;
A touch sensor provided on the other end side of the sensor holding portion and formed from a lead wire lead-out hole for leading the first lead wire and the second lead wire to the outside.   6. The touch sensor according to claim 5, wherein a hook portion for holding the first lead wire and the second lead wire is provided in at least one of the sensor holding portion and the attachment main body portion. Touch sensor.   The touch sensor according to claim 5, wherein a cover tube that covers the first lead wire and the second lead wire led to the outside is provided in the lead wire lead-out hole.   8. The touch sensor according to claim 5, wherein the object is a slide door provided on a side surface of a vehicle, and the pressure-sensitive sensor detects pinching of the object to be detected by the slide door. A touch sensor characterized by that.

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