JP2009051246A - Mounting structure of air spoiler with built-in antenna - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To ground an antenna member without arranging an earth wire separately nor wiring the earth wire at a cabin side. <P>SOLUTION: At one-side ends of both antennas 31, 32, extended sections 31a, 32a extending penetrating through holes 11a of the vehicle body mounting surface 11 of a spoiler body 10, through holes 1a of an outer panel 1 of a back door A formed of metal, and through holes 3a of an inner panel 3 are arranged, tips of the extended sections 31a, 32a are electrically connected to a vehicle body b1 (back door A) for grounding, and shield wires 25 for transmitting a received signal to information communication equipment 41 are connected to the connecting sections. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mounting structure for an air spoiler with a built-in antenna, and more particularly to a technique for grounding an antenna member.

  Currently, vehicles are provided with antenna devices for receiving various broadcast waves such as AM radio broadcast waves, FM radio broadcast waves, TV (UHF band and VHF band) broadcast waves, VICS, and the like.

Patent Document 1 discloses a technique in which a plurality of film antenna elements corresponding to a reception target medium are arranged in an air spoiler that is a hollow structure to receive various broadcast waves.
JP 2001-102826 A

  In the conventional antenna device, the antenna member is grounded by drawing the wiring from the hollow structure housing the antenna member toward the passenger compartment, and connecting the ground wire to the wiring and grounding it to the vehicle body. ing.

  However, in recent years, there has been a demand to increase the living space in the vehicle interior as much as possible to improve the comfortability, and it is possible to secure a sufficient wiring space for wiring the antenna member wiring and the ground wire in the vehicle interior. It can be difficult. In addition, it is not preferable to separately provide a grounding wire or a mounting member for attaching the grounding wire to the vehicle body because this leads to an increase in the cost of the antenna device.

  The present invention has been made in view of such points, and an object of the present invention is to realize grounding of an antenna member without separately providing a grounding wire or wiring the grounding wire to the passenger compartment side. .

  In order to achieve the object described above, in the present invention, an extension is provided at one end of the antenna member, and the tip of the extension is electrically connected to the vehicle body to be grounded.

  Specifically, the present invention is directed to a mounting structure of an air spoiler with a built-in antenna in which a resin air spoiler with a built-in antenna member formed of a conductive wire is mounted on a metal vehicle body. A solution was taken.

That is, in the invention of claim 1, the air spoiler includes a spoiler body having a closed cross-sectional shape having an internal space,
The antenna member is supported by the spoiler body so as to extend in the vehicle width direction and is disposed in the internal space.
One end of the antenna member is provided with an attachment surface portion on the vehicle body side in the spoiler body and an extension portion that extends through the vehicle body facing the attachment surface portion,
The tip of the extension portion is electrically connected to the vehicle body and grounded, and a reception signal received by the antenna member is transmitted to the information communication device provided in the vehicle compartment. For this purpose, a conductive wire is connected.

The invention of claim 2 is the invention according to claim 1,
The spoiler body includes a vehicle body mounting surface portion that is attached to the vehicle body, a bulging component that bulges rearward from the vehicle body mounting surface portion and forms an internal space between the vehicle body mounting surface portion, and the vehicle body mounting surface portion. A support portion that integrally stands on the bulging component side from the surface on the inner space side and supports the antenna member at its tip portion;
The vehicle body mounting surface portion and the support portion are formed by injection molding,
The vehicle body mounting surface portion and the bulging component portion are coupled to each other.

The invention of claim 3 is the invention according to claim 1,
The spoiler body includes a vehicle body mounting surface portion that is attached to the vehicle body, a bulging component that bulges rearward from the vehicle body mounting surface portion and forms an internal space between the vehicle body mounting surface portion, and the vehicle body mounting surface portion. A support portion that integrally stands on the bulging component side from the surface on the inner space side and supports the antenna member at its tip portion;
The vehicle body mounting surface portion, the support portion, and the bulging component portion are integrally formed by blow molding.

The invention of claim 4 is any one of claims 1 to 3,
Two antenna members are provided apart from each other in the interior space of the spoiler body, one of which is for the VICS band and the other is for the low VHF band.

  According to the first aspect of the present invention, the antenna member is provided with an extension portion extending through the attachment surface portion of the spoiler body and the vehicle body at one end of the antenna member, and the tip of the extension portion is electrically connected to the vehicle body and grounded. Since the lead wire for transmitting the received signal to the information communication device is connected to the part, there is no need to separately provide a ground wire for grounding the antenna member, which is advantageous in realizing cost reduction of the antenna device. Become. In addition, since the antenna member is grounded, the ground wire does not have to be drawn out to the passenger compartment side, and it is not necessary to secure a ground wire wiring space on the passenger compartment side, thereby increasing the living space in the passenger compartment. Will be advantageous.

  According to the invention of claim 2, since the vehicle body mounting surface portion and the support portion are integrally formed by injection molding, the number of parts can be reduced and the cost can be reduced, and the number of assembling steps can be reduced. , Work efficiency is improved.

  According to the invention of claim 3, since the vehicle body mounting surface portion, the support portion, and the bulging component portion are integrally formed by blow molding, the number of parts can be further reduced and the cost can be reduced. Furthermore, an air spoiler with a built-in antenna member can be easily manufactured by arranging an antenna member in advance in the internal space of the spoiler body during blow molding.

  According to the invention of claim 4, since the antenna member for the VICS band and the antenna member for the low VHF band are provided separately in the internal space of the spoiler body, radio wave interference between the two antenna members is avoided. However, radio waves in various frequency bands can be received.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature and is not intended to limit the present invention.

<Embodiment 1>
FIG. 1 shows an automobile B provided with a back door A constituting an automobile body b1 to which an air spoiler S according to Embodiment 1 of the present invention is attached. In FIG. 1, the back door A is a pair of left and right stays 21 with dampers. Indicates the open state. As shown in FIGS. 2 and 3, the back door A has a metal outer panel 1 and a metal inner panel 3 each having a rear window opening 8 formed on the upper edge side of the opening 8. A back door main body 7 is integrally coupled so as to have an internal space 5 extending in the width direction, and the inner portions of both ends in the vehicle width direction of the upper end portion of the back door main body 7 are a pair of left and right metal hinge members 9. , 9 is pivotally supported at the upper edge of the opening b2 (tailgate portion) at the rear of the metal body b1 of the automobile B, and the back door A is pivoted up and down about the hinge members 9, 9 as fulcrums. Thus, the opening b2 can be opened and closed.

  As shown in FIG. 3, a resin air spoiler S is attached to the outer panel 1 above the rear window opening 8 by fastening bolts (not shown). Further, the periphery of the opening 8 of the outer panel 1 is adhered to the periphery of the rear window glass 36 to close the opening 8.

  The air spoiler S includes a spoiler body 10 having a closed cross section having an internal space R. The spoiler body 10 includes a vehicle body attachment surface portion 11 attached to the back door A that forms the rear portion of the vehicle body, and a bulging component that bulges rearward from the vehicle body attachment surface portion 11 and forms an internal space R between the vehicle body attachment surface portion 11. 12 and a support rib 13 (support portion) that stands integrally on the bulging component portion 12 side from the surface on the inner space R side of the vehicle body attachment surface portion 11 and supports the antennas 31 and 32 at the tip portion thereof. Yes.

  Here, the vehicle body mounting surface portion 11 and the support rib 13 are integrally formed by injection molding. As a result, the number of parts can be reduced to reduce costs, the number of assembly steps can be reduced, and work efficiency can be improved. Further, the vehicle body mounting surface portion 11 and the bulging component portion 12 are coupled by an adhesive. In addition to bonding both members with an adhesive, they may be bonded by hot plate welding, vibration welding, high frequency welding, or the like.

  As shown in FIG. 5, the vehicle B receives radio (FM, AM broadcast), TV broadcast radio waves, VICS (Vehicle Information and Communication System), etc., and receives the received signal as a tuner 40. An antenna device is provided for guiding to an information communication device 41 such as a car navigation system, a radio, and a television in the vehicle interior.

  This antenna device includes a low frequency band antenna for receiving a broadcast wave in a low frequency band. Specifically, the low frequency band antenna includes a VICS band antenna 31 for receiving radio FM waves and VICS band radio waves having a frequency band of 76 MHz to 90 MHz, and a VHF (30 MHz to 300 MHz frequency band). It is composed of a low VHF band antenna 32 for receiving a low VHF charged wave such as 1CH to 3CH of a TV broadcast wave that is a frequency band of 88 MHz to 108 MHz among radio waves in a very high frequency band. . The dimensions of these antennas 31 and 32 are set in relation to the frequency of the reception target medium.

  As shown in FIGS. 3 and 4, the VICS band antenna 31 and the low VHF band antenna 32 that form the low frequency band antenna are made of a linear conductive wire made of stainless steel and having a wire diameter of about 3 mm. They are horizontally arranged apart from each other in the front-rear direction of the vehicle body b1, and are arranged in the inner space R of the spoiler body 10 so as to extend in the vehicle width direction.

  Further, at one end (the left end in FIG. 4) of both antennas 31 and 32, extension portions 31a and 32a extending by being bent at substantially right angles are provided, respectively. A through hole 11 a is formed in the vehicle body mounting surface portion 11 of the spoiler body 10, and the outer panel 1 and the inner panel 3 of the back door body 7 facing the vehicle body mounting surface portion 11 are concentric with the through hole 11 a of the vehicle body mounting surface portion 11. Through-holes 1a and 3a are respectively formed.

  The extension portions 31a, 32a extend through the through holes 11a, 1a, 3a, respectively, and connector terminals 26, to which one end of the internal conductor 25a is connected, are respectively attached to the tips. A metal connection washer 28 is connected to the other end of the internal conductor 25a. Here, a metal weld nut 19 is welded to a surface of the inner panel 3 on the inner space 5 side, and the connection washer 28 is fastened to the inner panel 3 with a metal bolt 18 so that both antennas are connected. 31 and 32 are grounded to the back door body 7 which is the vehicle body b1 through the internal conductor 25a and the connection washer 28.

  Furthermore, one end of an external conductor 25 b is connected to the connection washer 28, and the other ends of the external conductors 25 b and 25 b wired from both antennas 31 and 32 are bundled as one shield wire 25. Yes.

  The connector terminal 26, the internal conductor 25a, the external conductor 25b, the connection washer 28, and the bolt 18 are disposed between the trim 29 in the vehicle compartment and the inner panel 3 so as not to be seen from the vehicle compartment. Because it is hidden, the appearance of the passenger compartment is improved.

  The shield line 25 is used to guide signals received by the VICS band antenna 31 and the low VHF band antenna 32 to an information communication device 41 such as a car navigation system, a radio, and a television in the vehicle compartment via the tuner 40. The outer conductive wire 25b with coating is wrapped around a coated conductive wire 25c made of a thin metal conductive wire, and is further formed of a coaxial cable provided with an outer coating. The covered conductive wire 25c prevents external electromagnetic and electrostatic noise from entering the external conductive wire 25b.

  The two antennas 31 and 32 are arranged substantially horizontally apart. For example, the rear low VHF band antenna 32 is positioned below the front VICS band antenna 31 in the vertical direction. On the contrary, the rear low VHF band antenna 32 may be disposed above the front VICS band antenna 31. In short, both antennas 31 and 32 may be arranged in parallel at least one direction out of the front-rear direction and the vertical direction so as not to cause radio wave interference. Hereinafter, the arrangement of the antennas 31 and 32 will be described.

  As shown in FIGS. 3 and 4, the support rib 13 protrudes toward the bulging component 12 side so as to extend in the vehicle width direction on the surface on the inner space R side of the vehicle body mounting surface portion 11 of the spoiler body 10. , 13 are arranged at intervals in the vertical direction. Further, the reinforcing ribs 14, 14,... For reinforcing the supporting ribs 13, 13 are spaced apart in the vehicle width direction and extended in the vertical direction by injection molding, and the supporting ribs 13, 13 and the vehicle body mounting surface portion 11 are provided. Are integrally formed.

  Antenna receiving grooves 13a and 13a having a substantially U-shaped cross section are formed at the protruding end portions of the support ribs 13 and 13 along the longitudinal direction. In addition, an extension receiving groove 13b having a substantially U-shaped cross section is formed along the one end side wall on one end side wall in the vehicle width direction of the support rib 13 (left end in FIG. 4). Each of the support ribs 13 is formed in the protruding direction.

  Of the antenna receiving grooves 13a and 13a formed in the support ribs 13 and 13, the front antenna receiving groove 13a contains the VICS band antenna 31 and the rear antenna receiving groove 13a has a low VHF band. The antenna 32 for use is accommodated. At this time, the extension portions 31 a and 32 a of both antennas 31 and 32 are accommodated in the extension portion accommodation grooves 13 b of the corresponding support ribs 13, respectively.

  As shown in FIG. 4, both the antennas 31 and 32 are held by a clip 27 so as not to drop from the antenna housing grooves 13 a and 13 a. The clip 27 is formed by bending a spring wire, and both antennas are used to hold the holding portion 27a for holding the support rib 13, the VICS band antenna 31 and the low VHF band antenna 32. And an annular holding portion 27b having an inner diameter slightly larger than the outer diameters of 31 and 32. Note that the gap between the holding portions 27 a and 27 a is formed to be smaller than the plate thickness of the support rib 13 in the form before the clip 27 is attached to the support rib 13.

  Then, the gap between the holding portions 27a and 27a of the clip 27 is widened against the elastic force and is pushed into the both antennas 31 and 32 stored in the antenna receiving grooves 13a and 13a. , 32 are held by the holding portion 27b. Then, by holding the support rib 13 with the holding portion 27a while holding both the antennas 31 and 32 with the holding portion 27b of the clip 27, the both antennas 31 and 32 are prevented from falling out of the antenna receiving grooves 13a and 13a. It has become. At this time, since the extension portions 31a and 32a are accommodated in the extension portion receiving grooves 13b and 13b, the extension portions 31a and 32a do not fall out of the extension portion receiving grooves 13b and 13b by attaching the clip 27. It has become.

  Three clips 27 are attached to the VICS band antenna 31 at intervals in the vehicle width direction. Similarly, three low VHF band antennas 32 are attached at intervals in the vehicle width direction.

  Here, the protruding height of the support rib 13 from the surface of the vehicle body mounting surface portion 11 is the surface of the bulging component portion 12 on the inner space R side in a state where the vehicle body mounting surface portion 11 and the bulging component portion 12 are coupled. Both antennas 31 and 32 are set so as to be close to a position where they do not interfere (contact). In this way, both antennas 31 and 32 can be disposed at the highest position in the internal space R of the air spoiler S, which is advantageous in improving the reception sensitivity.

  Hereinafter, a procedure for incorporating the antennas 31 and 32 into the air spoiler S will be described. First, the antennas 31 and 32 are accommodated in the antenna accommodating grooves 13a and 13a formed at the projecting side end portions of the support ribs 13 and 13 erected integrally with the vehicle body mounting surface portion 11, while one end side walls of the support ribs 13 and 13 are accommodated. The extension portions 31a and 32a of the antennas 31 and 32 are accommodated in the extension portion receiving grooves 13b and 13b formed in FIG. At this time, the extension portions 31 a and 32 a are inserted through the through holes 11 a and 11 a formed in the vehicle body attachment surface portion 11 and placed on the support ribs 13 and 13.

  Thereafter, as described above, both the antennas 31 and 32 are held by the holding portion 27 b of the clip 27 while holding the support ribs 13 and 13 by the holding portion 27 a of the clip 27. Thereby, both antennas 31 and 32 do not fall out of the antenna receiving grooves 13a and 13a.

  Next, an adhesive is applied to the outer peripheral edge portion of the vehicle body mounting surface portion 11, and the inner peripheral edge portion of the bulging configuration portion 12 is fitted to the outer peripheral edge portion of the vehicle body mounting surface portion 11, thereby bulging the vehicle body mounting surface portion 11. The component 12 is coupled. Thereby, the assembly of the air spoiler S in which the antennas 31 and 32 are disposed in the internal space R is completed.

  Next, a procedure for assembling the air spoiler S to the back door body 7 will be described. First, the extension portions 31a and 32a projecting from the surface of the body attachment surface portion 11 of the air spoiler S are inserted into the through holes 1a and 3a formed in the outer panel 1 and the inner panel 3 of the back door body 7, and the tip ends thereof are inserted. Project from the surface of the inner panel 3. Then, the vehicle body mounting surface portion 11 of the air spoiler S is brought into contact with the back door body 7, the air spoiler S and the back door body 7 are fastened with fastening bolts (not shown), and the air spoiler S is connected to the back door body 7. Attach to.

  Then, the connection washer 28 to which the internal conductor 25 a and the external conductor 25 b are connected is fastened to the inner panel 3 with a metal bolt 18, and the connector terminal 26 connected to one end of the internal conductor 25 a is connected to the inner of the back door body 7. It attaches to the front-end | tip of the extension parts 31a and 32a protruded from the panel 3 surface. Further, the shield wire 25 in which the other end of the external conducting wire 25b is bundled is connected to the information communication device 41 in the vehicle interior. As a result, both antennas 31 and 32 are grounded to the back door body 7 that is the vehicle body b1 via the internal conductor 25a and the connection washer 28, and the reception signals received by the antennas 31 and 32 are transmitted to the information communication device 41. be able to.

  As described above, according to the mounting structure of the air spoiler S incorporating the antennas 31 and 32 according to the first embodiment, the through holes 11a of the vehicle body mounting surface portion 11 of the spoiler body 10 and the back door are formed at one end of the antennas 31 and 32. Extension portions 31a and 32a extending through the through hole 1a of the outer panel 1 of A and the through hole 3a of the inner panel 3 are provided, and the ends of the extension portions 31a and 32a are electrically connected to the vehicle body b1 (back door body 7). On the other hand, since the shield wire 25 for transmitting the received signal to the information communication device 41 is connected to the connection portion, there is no need to separately provide a ground wire for grounding the antennas 31 and 32. The cost of the antenna device can be reduced. In addition, it is not necessary to draw out the ground wire to the passenger compartment side in order to ground the antennas 31 and 32, and it is not necessary to secure a ground wire wiring space on the passenger compartment side, thereby widening the living space in the passenger compartment. This is advantageous.

  In the first embodiment, the configuration in which the air spoiler S is attached to the upper end portion of the rear door A of the back door A that can freely open and close the rear portion of the vehicle body b1 has been described. However, the present invention is not limited to this configuration. The air spoiler S may be attached to the upper end of the so-called sedan type vehicle body b1 at the rear of the vehicle body.

  In the first embodiment, the air spoiler S is attached to the vehicle body b1 including the back door A in which the outer panel 1 and the inner panel 3 are integrally coupled. However, the present invention is not limited to this configuration. You may attach the air spoiler S with respect to the vehicle body b1 containing the back door A comprised only by the outer panel 1. FIG.

  In the first embodiment, the connector terminal 26 is attached to the tip of the extension portions 31 a and 32 a of the antennas 31 and 32, and the internal conductor 25 a connected to the connector terminal 26 is electrically connected to the inner panel 3 via the connection washer 28. The antennas 31 and 32 are grounded to the vehicle body b1 by connecting them to each other. However, the present invention is not limited to this form. For example, as shown in FIG. 6, the extensions 31a and 32a of the antennas 31 and 32 are provided. Are provided with threaded portions 31b, 32b at the tips of the inner panel 3, projecting through the through-holes 3a, 3a of the inner panel 3 and connecting one end of the external conductor 25b with a fastening nut. The antennas 31 and 32 are connected to each other by fastening the fastening nuts 17 and 17 to the screw portions 31b and 32b while being sandwiched between the inner panel 3 and the inner panel 3. It may be grounded to the vehicle body b1 via the connection washer 28 and the inner panel 3.

  Moreover, in this embodiment, although the two antennas 31 and 32 were arrange | positioned in the spoiler main body 10, the number and kind of this antenna are not limited to this embodiment.

<Embodiment 2>
FIG. 7 is a cross-sectional view of a pair of molds 45 and 46 for molding the air spoiler S according to the second embodiment of the present invention. Since the difference from the first embodiment is that the air spoiler S is integrally formed by blow molding, the same parts as those of the first embodiment are denoted by the same reference numerals, and only the differences will be described.

  As shown in FIG. 7, the air spoiler S is a bulge that forms an internal space R between the vehicle body mounting surface portion 11 attached to the back door A and the vehicle body mounting surface portion 11 bulging rearward from the vehicle body. The projecting component 12 and a support rib 47 that stands integrally on the bulging component 12 side from the inner space R side surface of the vehicle body mounting surface unit 11 and supports the antennas 31 and 32 at its distal end. . And the vehicle body attachment surface part 11, the bulging structure part 12, and the support rib 47 are integrally formed by blow molding.

  Hereinafter, a procedure for integrally forming the air spoiler S by blow molding will be described. As shown in FIG. 7, first, a pair of molds 45 and 46 having an inner surface corresponding to the outer shape of the air spoiler S are prepared. Then, after extruding a thermoplastic resin material as a cylindrical parison by an unillustrated extruder, the parison is blown into the parison with a pair of dies 45 and 46 while blowing pressurized air from a nozzle (not shown). The both ends of the cylindrical parison are sandwiched and closed. As a result, the parison swells in the molds 45 and 46 and is pressed against the inner surfaces (molding surfaces) of the molds 45 and 46. When the parison pressed against the inner surfaces of the molds 45 and 46 is cooled, the parison body 10 is solidified while maintaining its shape, and the spoiler body 10 having the internal space R is formed.

  Here, since the spoiler body 10 blow-molded by the above-described procedure is integrally formed, the antennas 31 and 32 must be disposed in the internal space R before the spoiler body 10 is completely solidified. Hereinafter, a procedure for forming the support rib 47 for supporting (holding) the antennas 31 and 32 in the internal space R of the spoiler body 10 and disposing the antennas 31 and 32 in the internal space R will be described.

  In the procedure of forming the support rib 47, a slide plate 48 as shown in FIGS. 8 and 9 is used. Specifically, an antenna receiving groove 48a having a substantially U-shaped cross section is formed along the longitudinal direction at the front end portion of the slide plate 48 on the pushing side (the upper side in FIG. 8). Further, on one end side wall (left side in FIG. 8) of the slide plate 48 in the vehicle width direction (left and right direction in FIG. 8), an extension accommodating groove 48b having a substantially U-shaped cross section is formed continuously with the antenna accommodating groove 48a. It is formed along the side wall, that is, in the pushing direction of the slide plate 48. The antennas 31 and 32 are accommodated in the antenna accommodating groove 48a of the slide plate 48, and the extension portions 31a and 32a of the antennas 31 and 32 are accommodated in the extension portion accommodating groove 48b. Further, notches 48c, 48c,... Are formed at the front end of the slide plate 48 on the pushing side with a space in the vehicle width direction.

  Then, in the above-described step of blowing air into the parison, the slide plates 48 and 48 accommodating the antennas 31 and 32 at the front ends are pushed into the parison while blowing air into the parison. Specifically, the lower mold 46 in FIG. 7 of the pair of molds 45 and 46 is directed from the lower side of the lower mold 46 toward the parison corresponding to the positions where the antennas 31 and 32 are disposed. Opening holes 46a, 46a that are opened obliquely upward are formed, and the slide plates 48, 48 are inserted into the opening holes 46a, 46a and pushed into the parison side, so that the outside of the antennas 31, 32 and the slide plate 48 are formed. The parison is deformed along the shape, and the support rib 47 is formed. If the amount of pushing the slide plate 48 into the parison side is set to such an extent that the tip of the support rib 47 does not contact the inner peripheral surface of the bulging component 12, the bulging component 12 after the parison has solidified. It is preferable because distortion and wrinkles can be suppressed on the surface.

  Then, after the support rib 47 is formed, in the process where the parison is solidified, the slide plate 48 is pulled out from the mold 46, so that the surface of the vehicle body mounting surface portion 11 on the inner space R side is moved to the bulging component 12 side. As shown in FIG. 10, the support rib 47 is erected integrally and holds the portions along the vehicle width direction of the antennas 31 and 32 with the gripping portion 47 a and the holding portion 47 b at the tip, and the extension portions 31 a and 32 a are extended holding portions. Hold at 47c. That is, FIG. 10 shows the support rib 47 in which the air spoiler S is removed from the molds 45 and 46, and FIG. 10 (a) is a cross-sectional view of a portion corresponding to the line aa in FIG. 10 (b) is a cross-sectional view of a portion corresponding to the line bb in FIG. 8, and FIG. 10 (c) is a cross-sectional view of a portion corresponding to the line cc in FIG. As shown in FIG. 10B, the parison deformed along the outer shape of the slide plate 48 during the pushing operation for forming the support rib 47 is deformed so as to wrap around the antennas 31 and 32 in the notch 48c. The deformed gripping portion 47a is a parison overlapping portion 47d for holding the antennas 31 and 32 after the parison is solidified.

  In this embodiment, the extension portions 31 a and 32 a protrude from the vehicle body attachment surface portion 11 to the outside of the spoiler body 10.

  Since the procedure for assembling the air spoiler S completed in such a procedure to the back door body 7 is the same as that in the first embodiment, the description thereof is omitted.

  As described above, according to the mounting structure of the air spoiler S incorporating the antennas 31 and 32 according to the second embodiment, the vehicle body mounting surface portion 11, the support rib 47, and the bulging component portion 12 are integrally formed by blow molding. Therefore, the number of parts can be further reduced and the cost can be reduced. Further, since the antennas 31 and 32 are disposed in advance in the internal space R of the spoiler body 10 at the time of blow molding, the air spoiler S incorporating the antennas 31 and 32 can be easily manufactured.

  As described above, the present invention provides a highly practical effect that the grounding of the antenna member can be realized without separately providing a grounding wire or wiring the grounding wire to the passenger compartment side. It is extremely useful and has high industrial applicability.

FIG. 3 is a side view of the rear part of the vehicle body in a state where the back door of the automobile according to the embodiment of the present invention is opened. FIG. 2 is a perspective view of a state in which the back door of FIG. 1 is looked up from the rear side of the vehicle body. It is sectional drawing which shows the structure of the back door and air spoiler in the III-III line | wire of FIG. It is a top view for demonstrating arrangement | positioning of the antenna in the internal space of an air spoiler. It is a schematic diagram which shows the state which connected the antenna to the information communication equipment. FIG. 4 is an enlarged view of a part of another configuration for grounding the antenna, corresponding to FIG. 3. It is sectional drawing of the metal mold | die which shape | molds the air spoiler which concerns on this Embodiment 2. FIG. It is a front view which shows the state which set the antenna to the slide plate of a metal mold | die. (A) is sectional drawing in the aa line of FIG. 8, (b) is sectional drawing in the bb line of FIG. 8, (c) is sectional drawing in the cc line of FIG. (A) is sectional drawing of the location corresponding to the aa line of FIG. 8 in a support rib, (b) is sectional drawing of the location corresponding to the bb line of FIG. 8 in a support rib, (c) is a support rib. It is sectional drawing of the location corresponding to the cc line | wire of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Spoiler main body 11 Car body mounting surface part 12 Swelling structure part 13 Support rib (support part)
25 Shielded wire 25a Internal conductor 25b External conductor 31 VICS band antenna (antenna member)
31a Extension 32 Low VHF band antenna (antenna member)
32a Extension part 41 Information and communication equipment 47 Support rib (support part)
A Back door B Car b1 Car body R Internal space S Air spoiler

Claims (4)

A mounting structure of an air spoiler with built-in antenna in which a resin air spoiler with a built-in antenna member formed of a conductive wire is attached to a metal vehicle body,
The air spoiler includes a spoiler body having a closed cross-sectional shape having an internal space,
The antenna member is supported by the spoiler body so as to extend in the vehicle width direction and is disposed in the internal space.
One end of the antenna member is provided with an attachment surface portion on the vehicle body side in the spoiler body and an extension portion that extends through the vehicle body facing the attachment surface portion,
The tip of the extension portion is electrically connected to the vehicle body and grounded, and a reception signal received by the antenna member is transmitted to the information communication device provided in the vehicle compartment. A structure for mounting an air spoiler with a built-in antenna, characterized in that a lead wire is connected. In claim 1,
The spoiler body includes a vehicle body mounting surface portion that is attached to the vehicle body, a bulging component that bulges rearward from the vehicle body mounting surface portion and forms an internal space between the vehicle body mounting surface portion, and the vehicle body mounting surface portion. A support portion that integrally stands on the bulging component side from the surface on the inner space side and supports the antenna member at its tip portion;
The vehicle body mounting surface portion and the support portion are formed by injection molding,
An attachment structure for an air spoiler with a built-in antenna, wherein the vehicle body attachment surface portion and the bulging component portion are combined. In claim 1,
The spoiler body includes a vehicle body mounting surface portion that is attached to the vehicle body, a bulging component that bulges rearward from the vehicle body mounting surface portion and forms an internal space between the vehicle body mounting surface portion, and the vehicle body mounting surface portion. A support portion that integrally stands on the side of the bulging component portion from the surface on the inner space side and supports the antenna member at its tip portion;
The mounting structure for an air spoiler with a built-in antenna, wherein the vehicle body mounting surface portion, the support portion, and the bulging component portion are integrally formed by blow molding. In any one of Claims 1 thru | or 3,
An antenna spoiler mounting structure characterized in that two antenna members are provided apart from each other in the interior space of the spoiler body, one of which is for the VICS band and the other is for the low VHF band.

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