JP5125756B2 - Car body structure considering glass antenna performance for automobiles - Google Patents

Description

  The present invention relates to a vehicle body structure that has an antenna in an upper margin of a defogger of a rear window glass of an automobile and has a large roof area or a plurality of sunroof windows.

  In recent years, sunroofs using a glass panel as an opening for giving a feeling of opening to the roof of an automobile are becoming widespread. There are sunroofs that can be opened and closed, those that can be opened by sliding the sunroof window glass in the front-rear direction, and those that tilt up by lifting part of the window upward. However, when the area of the opening portion of the sunroof window is increased, a feeling of opening is further obtained, so that the area tends to be increased.

  On the other hand, the rear window glass of an automobile is provided with a heating wire for anti-fogging in the main area in the central part, and an antenna pattern is often provided in the margin, especially for receiving AM / FM radio broadcast waves. When an antenna is provided, it is generally used in an upper margin that is advantageous in terms of reception characteristics.

As an example of a patent document in which two roof openings of the sunroof are provided in the front-rear direction, for example, Japanese Patent Application Laid-Open No. 2002-127752 discloses a tilt-up sunroof on the front seat side and a sliding sunroof on the rear seat side. A twin-type sunroof that is continuously provided at the front and rear is disclosed (Patent Document 2).
JP 2002-127752 A

  Although the invention described in Patent Document 1 has a feeling of openness, the width of the metal roof panel on the rear window side excluding the opening is so narrow that the vehicle cannot sufficiently receive FM band radio waves, There was a problem that the reception performance of the AM / FM antenna provided on the upper part of the defogger of the window glass deteriorated.

  The present invention aims to solve the above-mentioned problem, that is, it has an AM / FM radio broadcast wave antenna in the upper margin of the defogger of the rear window glass, and has a large opening area of the roof part or a plurality of antennas in the front-rear direction. When the sunroof window is provided, a vehicle body structure that does not adversely affect the reception performance of the automotive glass antenna provided in the upper margin of the defogger is provided.

  That is, the present invention relates to a metal roof connected to a vehicle body body in a vehicle body structure that considers the performance of an automotive glass antenna having an AM / FM antenna in the upper margin of the rear window glass defogger and a sunroof window in the roof portion. A roof panel having at least one opening at the center of the roof panel, and a roof glass is overlapped and fixed on the entire upper surface of the roof panel, from the inner end of the outer peripheral frame on the rearmost side of the roof panel, The width of the metal part to the inner upper end of the flange frame of the window glass is 300 mm or more and 400 mm or less.

  Alternatively, in the present invention, the frequency corresponding to the sum of the lengths of the four sides of the opening on the rear side of the roof panel is outside the wavelength range of the FM broadcast wave band, and the opening functions as an antenna. It is a vehicle body structure in consideration of the above-mentioned glass antenna performance for automobiles, characterized in that it does not absorb radio waves by resonating with radio waves in the FM broadcast wave band.

  Alternatively, in the present invention, a plurality of roof glasses arranged on the top of the roof panel are arranged in parallel for each opening so as to cover each opening, and the front window glass, the roof glass, and the rear window glass are continuous. It is a vehicle body structure in consideration of the above-mentioned glass antenna performance for automobiles, characterized in that the glass plates are arranged side by side and the roof glass is fixed on the roof panel.

  Alternatively, the present invention is characterized in that the glass plates of the front window glass, the roof glass, and the rear window glass are arranged in parallel through a narrow resin panel or resin molding having the same thickness as the glass plate. This is a vehicle body structure in consideration of the performance of the above-described automotive glass antenna.

  Alternatively, the present invention provides a vehicle body structure considering the performance of an automotive glass antenna having an AM / FM antenna in the upper margin of the rear window glass defogger and a sunroof window in the roof, and is made of metal connected to the vehicle body. After providing a roof panel having at least one or more openings in the center of the roof, and fixing the roof glass on the entire upper surface of the metal frame-shaped glass support panel that matches the outer peripheral shape of the roof panel, The glass support panel is overlapped and fixed on the roof panel frame and grounded, and from the inner end of the outer peripheral frame on the roof panel or the rearmost side of the glass support panel to the inner upper end of the flange frame of the rear window glass Considering the performance of glass antennas for automobiles, characterized in that the width of the metal part of the glass is 300 mm or more and 400 mm or less It is a body structure.

  Alternatively, in the present invention, the frequency corresponding to the sum of the lengths of the four sides of the opening on the rear side of the glass support panel is outside the wavelength range of the FM broadcast wave band, and the opening acts as an antenna. The vehicle body structure in consideration of the above-described glass antenna performance for automobiles is characterized in that it does not absorb radio waves by resonating with radio waves in the FM broadcast wave band.

  Alternatively, in the present invention, a plurality of roof glasses arranged on the upper portion of the glass support frame are juxtaposed for each opening so as to cover each opening, and the front window glass, the roof glass, and the rear window glass are continuously provided. It is a vehicle body structure in consideration of the above-mentioned glass antenna performance for automobiles, wherein the roof glass is fixed on a glass support frame and arranged in parallel so as to form a glass surface.

  Alternatively, the present invention is characterized in that the glass plates of the front window glass, the roof glass, and the rear window glass are arranged in parallel through a narrow resin panel or resin molding having the same thickness as the glass plate. This is a vehicle body structure in consideration of the performance of the above-described automotive glass antenna.

  Alternatively, the present invention takes into account the above-described performance of the glass antenna for automobiles, wherein the ground position between the glass support panel and the roof panel is the outer peripheral frame corner portion on the rearmost side of the glass support panel. It is a car body structure.

  Alternatively, the present invention is characterized in that the glass support panel is provided with two opening windows, the opening on the front side is a movable opening / closing window, and the opening on the rear side is a fixed fitting window. This is a vehicle body structure in consideration of the performance of the above-described automotive glass antenna.

  Alternatively, according to the present invention, when a motor for driving the movable roof glass back and forth is attached to the lower surface of the rearmost frame portion of the glass support panel, the front end of the rearmost frame portion of the roof panel is moved downward. And a vehicle body structure that takes into account the above-described performance of the glass antenna for automobiles, comprising a shielding portion having an L-shaped cross section bent so as to cover the motor.

  According to the present invention, when the AM / FM radio broadcast wave antenna is provided in the upper margin of the defogger of the rear window glass, the width of the metal roof panel on the rear window side excluding the opening is ensured to be wide. Therefore, the reception performance of the AM / FM radio broadcast wave provided in the upper margin of the defogger is not adversely affected, and the reception performance can be prevented from deteriorating.

  Furthermore, when a motor for automatically opening and closing the roof window glass is installed at a position close to the rear window glass of the glass support panel, the end of the roof panel is bent so as to cover the motor, or the roof panel is attached to the roof panel. By attaching a shielding plate to cover the motor, radiation noise generated from the motor can be shielded so that the reception characteristics of the antenna of the rear window glass are not adversely affected.

  As shown in FIGS. 1 and 7, the present invention considers the performance of a glass antenna for an automobile having an AM / FM antenna 5 in the upper margin of the defogger 4 of the rear window glass 3 and a sunroof window in the roof. It is a structure.

  As shown in FIGS. 4 and 5, the first embodiment has a configuration in which a roof glass plate of a sunroof is directly attached to a metal roof panel 10 connected to a vehicle body.

  That is, a roof panel 10 having at least one opening 21 is provided in the center of a metal roof connected to the vehicle body, and a plurality of sheets are provided on the entire upper surface so as to cover each opening 21 of the roof panel 10. The roof glass is juxtaposed so as to cover the substantially entire surface of the roof top surface, fixed on the roof panel 10, and the flange of the rear window glass 3 from the inner end of the outer peripheral frame portion on the rearmost side of the roof panel 10. The width of the metal part up to the inner upper end of the frame 6 is set to 300 mm or more and 400 mm or less.

  As a result, the reception area of the FM broadcast wave glass antenna 5 provided on the rear window glass 3 can be prevented from being adversely affected while maintaining the wide opening area of the roof panel 10.

  The frequency corresponding to the total length of the four sides inside the opening provided on the rear side of the roof panel 10 is outside the range of 2780 to 3950 mm, which is the wavelength of the FM broadcast wave band of 76 MHz to 108 MHz, That is, it is set to 2700 mm or less and 4030 mm or more in consideration of a little margin.

  By limiting and adjusting the length of the four sides of the opening in this way, the opening that becomes a closed loop shape does not resonate with the radio waves in the FM broadcast wave band, and the radio waves are not absorbed by the openings. can do.

  Further, as shown in FIG. 4, in the vehicle body structure of the present invention, a plurality of roof glasses are arranged in parallel so as to cover substantially the entire upper surface of the roof so as to cover each opening of the roof panel 10. Then, the front window glass 2 and the rear window glass 3 are arranged side by side on the front side and the rear side of the plurality of roof glasses fixed and arranged on the roof panel 10, respectively, and the glass surface is continuous. It was made to provide.

  Furthermore, the glass plates are arranged in parallel between the front window glass 2 and the roof glass and between the roof glass and the rear window glass 3 through a narrow resin panel or resin molding having the same thickness as the glass plate. You can also.

  In the second embodiment, as shown in FIGS. 1 to 3, the glass support panel 20, which is formed by laminating and bonding the roof glass on the upper surface, is integrated on the metal roof panel 10 connected to the vehicle body. It is the structure at the time of piled up and connected and fixed.

  That is, a roof panel 10 having at least one opening is provided in the center of a metal roof connected to the vehicle body, and a metal frame-shaped glass support panel that substantially matches the outermost peripheral shape of the roof panel 10. After the roof glass is overlaid and fixed on the entire upper surface of the glass 20, the glass support panel 20 is overlaid on the frame of the roof panel 10 and fixed and grounded, and the roof panel 10 or the rearmost side of the glass support panel 20 is grounded. The width of the metal portion from the inner end of the outer peripheral frame to the upper end inside the flange frame of the rear window glass 3 is set to 300 mm or more and 400 mm or less.

  As a result, the reception area of the FM broadcast wave glass antenna 5 provided on the rear window glass 3 can be prevented from being adversely affected while maintaining the wide opening area of the glass support panel 20.

  The frequency corresponding to the total length of the four sides inside the opening provided on the rear side of the glass support panel 20 is outside the range of 2780 to 3950 mm, which is the wavelength of the FM broadcast wave band of 76 MHz to 108 MHz. That is, in consideration of a slight margin, the thickness is set to 2700 mm or less and 4030 mm or more.

  By limiting and adjusting the length of the four sides of the opening in this way, the opening that becomes a closed loop shape does not resonate with the radio waves in the FM broadcast wave band, and the radio waves are not absorbed by the openings. can do.

  Further, a plurality of roof glasses arranged on the upper portion of the glass support frame are arranged in parallel for each opening so as to cover each opening, and the front window glass 2, the roof glass, and the rear window glass 3 are substantially continuous. A plurality of roof glasses were fixed on the glass support panel 20 so as to have a planar shape, and were provided so that the glass surface was a continuous planar shape.

  Moreover, it arranged in parallel via the narrow resin panel or resin molding of the same thickness as a glass plate between each glass plate of the said front window glass 2, roof glass, and rear window glass 3. As shown in FIG.

  Furthermore, as shown in FIG. 6, the ground position by the connection of the glass support panel 20 and the roof panel 10 is set as the outer peripheral frame corner portion on the rearmost side of the glass support panel 20, and the ground position is the outer periphery on the rearmost side. Most preferably, it is provided at two places on both corners of the frame, but an additional ground position can be provided.

  Furthermore, as shown in FIG. 1, the glass support panel 20 is provided with two opening windows, the opening on the front side is a movable opening / closing window, and the opening on the rear side is a fixed fitting window. The movable opening window glass is slid backward on the roof, but can be slid on the lower side of the roof.

  The movable opening window glass can be manually opened and closed, and can be opened and closed by using a motor. When opening and closing by a motor, there are two attachment positions of the motor, the front and the rear, which slide. A plurality of motors may be used depending on the load due to the weight of the window glass or the like or the performance of the motor.

  As shown in FIG. 3, when the motor 7 that drives the movable roof glass back and forth is attached to the lower surface of the rearmost frame portion of the glass support panel 20, the rearmost frame portion of the roof panel 10 is The front end is bent downward and covers the motor 7, or the shielding portion 11 having an L-shaped cross section is provided at the front end of the rearmost frame portion of the roof panel 10. As a result, radiation noise generated from the motor 7 can be shielded so that the rear window antenna 5 is not adversely affected.

  The width of the metal part from the inner edge of the outer peripheral frame on the rearmost side of the roof panel 10 or the glass support panel 20 to the upper edge on the inner side of the flange frame 6 of the rear window glass 3 is 300 mm or more. Assuming that the antenna gain is 1 dB lower than the antenna gain of the normal roof length, it should be 300 mm or more in the graph shown in FIG.

  On the other hand, the wavelength of 400 mm or less is the wavelength corresponding to the total length of the four sides b, c, d, e inside the opening 21 provided on the rear side of the glass support panel 20 on the rear window side in FIG. This is because the frequency becomes outside the wavelength range of the FM broadcast wave band of 76 MHz to 108 MHz.

  That is, the total length of the four sides of the opening 21 on the rear window side does not fall within the range of 2780 to 3950 mm, which is the wavelength range, in the FM radio broadcast wave in Japan and overseas band of 76 to 108 MHz. This is because it is necessary to adjust the lengths of the four sides of the opening 21. Accordingly, the opening 21 having a closed loop shape does not resonate with radio waves in the FM broadcast wave band, and the radio waves can be prevented from being absorbed by the opening 21.

  If the total length of the four sides of the opening 21 provided on the rear side is 2700 mm or less and 4030 mm or more provided with a slight margin outside the above range, In view of the overall size of the roof of a typical automobile, the area of the opening is too large to be practical and impractical.

  Furthermore, even when the total length of the four sides of the opening provided on the rear side is 2700 mm or less, in order to increase the area of the opening 21 as much as possible, the length of the four sides of the opening The ratio b / c between the length c in the front-rear direction (vertical direction) and the length b in the width direction (lateral direction) of the opening is about 1 to 2.5 while maintaining the total length at 2700 mm or less. Is desirable.

  For example, if the length in the front-rear direction is 500 mm, the length in the width direction is 850 mm, and if the length in the front-rear direction is 600 mm, the length in the width direction is 750 mm.

  In FIG. 7, the rear window glass 3 has a defogger 4, and an AM / FM antenna 5 for receiving an AM radio / FM radio broadcast wave is provided in an upper margin, and two openings 21 are provided in a roof portion. , 21 is an overall perspective view of an automobile having a vehicle body structure according to the present invention.

[Example 1]
In the vehicle body structure of the present invention, as shown in FIGS. 1 to 3, the movable roof glass 1 and the fixed roof glass 1 ′ are arranged on the upper surface of a frame-like glass support panel 20 having two openings, and the glass support panel 20. The glass support panel 20 is placed on top of each other and the glass support panel 20 is placed on and fixed to the metal roof panel 10 connected to the vehicle body.

  That is, the roof panel 10 having a rectangular opening is provided on a metal roof connected to the vehicle body. The roof panel 10 connects and fixes the top sides of a pair of left and right side panels.

  A metal frame-shaped glass support panel 20 that substantially matches the outermost peripheral shape of the roof panel 10 and has two roof openings is prepared. After the glass support panel 20 is arranged with the fixed glass 1 "having a narrower width than the front window glass 2 side, the movable roof glass 1 for the movable sunroof, and the fixed roof glass 1 'arranged in sequence, the glass support panel is arranged. 20 is overlapped and fixed on the roof panel 10 frame, and the glass support panel 20 is grounded to the roof panel 10 integrated with the vehicle body.

  As shown in the dimension a of FIG. 2, the width a of the metal portion from the inner end of the outer peripheral frame on the rearmost side of the glass support panel 20 to the upper end inside the flange frame 6 of the rear window glass 3 is 300 mm. It was.

  The ground position 22 is the outer peripheral frame corner portion on the rearmost side of the glass support panel 20 as described in FIGS. 3 and 6, and two metal panels, the glass support panel 20 and the roof panel 10. And tightening bolts and nuts.

  The fixed glass plates 1 ′, 1 ″ and the movable glass plate 1 have their peripheral edge edges protected by a resin molding, and the movable glass plate 1 is provided with a resin molding, a slide moving mechanism, etc. (not shown). Yes.

  The length of each of the four sides b, c, d, e of the opening 21 on the rear side of the glass support panel 20 is set to 2700 mm in total of 800 mm, 550 mm, 800 mm, and 550 mm, which corresponds to this length. The frequency 111.1 MHz of the wavelength to be used is outside the wavelength range of the FM broadcast wave band, the opening 21 does not resonate with the radio wave of the FM broadcast wave band, and the radio wave is not absorbed by the opening 21.

  The glass support frame has two openings 21 and 21. The roof glass disposed on the upper part of the opening on the front seat side can be slid by a slide moving mechanism (not shown) so as to cover the opening. It is configured.

  On the other hand, the fixed roof glass 1 'covering the opening at the upper position on the rear seat side is disposed and fixed from the rear end side of the movable roof glass 1 to the vicinity of the upper end side of the rear window glass 3, and is in the closed state. Between the movable glass plate 1 and the front window glass 2, a narrow fixed roof glass 1 ″ is disposed and fixed, so that a continuous glass surface is formed from the front window glass 2 to the rear window glass 3, and the entire upper surface. Becomes a kind of full-glazed state.

  Of course, a resin molding was provided at a necessary portion on the peripheral edge of each glass plate of the front window glass 2, roof glass, and rear window glass 3 to protect the end of the glass plate.

  Note that the lengths of the four sides b ′, c ′, d ′, and e ′ of the opening on the front side of the glass support panel 20 that are slidable are 600 mm, 800 mm, 600 mm, 800 mm, and front, respectively. The size of the movable roof glass 1 on the side was 650 mm long and 850 mm wide, and the distance between the opening on the front side and the opening on the rear side was 150 mm.

  Moreover, the dimension of the narrow fixed roof glass 1 "provided between the movable roof glass 1 and the front window glass 2 was 250 mm long and 850 mm wide.

  Further, as shown in FIG. 3, a motor 7 for driving the movable roof glass 1 back and forth is attached to the lower surface of the rearmost frame portion of the glass support panel 20, and the rearmost frame portion of the roof panel 10 is attached. The front end is a shielding part 10 'bent in an L-shaped cross section so as to cover the motor 7, and the shielding part shields radiation noise generated from the motor 7 so as not to adversely affect the antenna 5 of the rear window. I made it.

  As a result, the reception area of the FM broadcast wave glass antenna 5 provided on the rear window glass 3 can be prevented from being adversely affected while maintaining the wide opening area of the glass support panel 20.

[Example 2]
As shown in FIG. 4 and FIG. 5, this is a fitting type vehicle body structure in which a roof glass plate of a sunroof is directly attached to a metal roof panel 10 connected to the vehicle body.

  That is, two opening portions are provided in the center of the metal roof panel 10 connected to the vehicle body, the front roof glass 1 'covering the front opening portion of the roof panel 10, and the rear opening portion. A fixed roof glass 1 ′ on the rear side covering the upper and lower sides of the metal roof panel 10 was fixed in parallel in the front-rear direction so as to cover substantially the entire upper surface side of the metal roof panel 10.

  The fixed roof glass on the front side is substantially in contact with the upper end side of the front window glass 2 through the resin molding material, and the fixed roof glass 1 'on the rear side is also in contact with the upper end side of the rear window glass 3. The resin molding was almost in contact with the resin molding, and was further disposed between the two glass plates on the roof panel 10 via the resin molding.

  Furthermore, the width of the metal portion from the inner end of the outer peripheral frame on the rearmost side of the roof panel 10 to the inner upper end of the flange frame 6 of the rear window glass 3, and the two openings of the glass support panel 20 These dimensions are the same as those in the first embodiment.

  As a result, the reception area of the FM broadcast wave glass antenna 5 provided on the rear window glass 3 can be prevented from being adversely affected while maintaining the wide opening area of the roof panel 10.

  The frequency corresponding to the total length of the four sides inside the opening provided on the rear side of the roof panel 10 is in the FM broadcast waveband range of 76 MHz to 108 MHz as in the first embodiment. Therefore, the opening having a closed loop shape does not resonate with radio waves in the FM broadcast wave band, and radio waves can be prevented from being absorbed by the openings.

[Comparative Example 1]
This is an example in which a large opening is provided in a roof panel 10 of a conventional automobile, and the distance a from the inner front end of the frame on the rear side of the opening to the inner upper end of the flange frame 6 of the rear window glass 3 is 200 mm.

  At this time, the reception gain of the AM / FM antenna 5 provided in the upper margin of the defogger 4 of the rear window glass 3 is -2.2 dB for vertical polarization and -10.9 dB for horizontal polarization as shown in FIG. Thus, compared to a car having a standard sunroof, both vertical polarization and horizontal polarization showed a drop of 3 dB or more, and it was found that the level was not practical.

  An automobile having an AM / FM radio broadcast wave antenna 5 in the upper margin of the defogger 4 of the rear window glass 3, and in order to greatly improve the feeling of opening even in the car, the opening area of the roof part is increased. Even if a plurality of sunroof windows are provided in the front-rear direction, the reception performance of the AM / FM radio broadcast wave provided in the upper margin of the defogger 4 is not adversely affected and the reception performance is lowered. There is no.

The top view which shows Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view taken along line AA, showing Example 1 of the present invention. FIG. 3 is a side cross-sectional view taken along the line B-B illustrating the first embodiment of the present invention. The top view which shows Example 2 of this invention. The side sectional view of AA view showing Example 2 of the present invention. Illustration explaining the glass support panel and grounding position 1 is an overall perspective view of an automobile using a vehicle body structure of the present invention. The relationship between the antenna portion gain and the width a of the metal portion from the inner front end of the opening of the rearmost portion of the glass support panel to the upper end of the flange of the rear window.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Movable roof glass 1 ', 1 "Fixed roof glass 2 Front window glass 3 Rear window glass 4 Defogger 5 AM / FM antenna 6 Rear window flange frame 7 Motor 10 Roof panel 11 Shielding member 20 Glass support panel 21 Opening 22 Earth position

Claims (11)

In the vehicle body structure considering the performance of an automotive glass antenna having an AM / FM antenna in the upper margin of the rear window glass defogger and a sunroof window in the roof,
A roof panel having at least one opening is provided at the center of a metal roof connected to the vehicle body body, and roof glass is overlapped and fixed on the entire upper surface of the roof panel, and the outer periphery on the rearmost side of the roof panel A vehicle body structure in consideration of the performance of a glass antenna for an automobile, wherein a width of a metal portion from an inner edge of the frame portion to an inner upper edge of a flange frame of the rear window glass is set to 300 mm or more and 400 mm or less.   The frequency of the wavelength corresponding to the total length of the four sides of the opening on the rear side of the roof panel is outside the wavelength range of the FM broadcast wave band, and the opening acts as an antenna to convert the radio wave in the FM broadcast wave band. 2. The vehicle body structure in consideration of the performance of a glass antenna for an automobile according to claim 1, characterized in that it resonates and does not absorb radio waves.   A plurality of roof glasses arranged at the top of the roof panel are arranged in parallel for each opening so as to cover each opening, so that the front window glass, the roof glass, and the rear window glass are formed into a continuous glass surface shape. The vehicle body structure considering the performance of the glass antenna for an automobile according to claim 1 or 2, wherein the roof glass is arranged side by side and a roof glass is fixed on the roof panel.   4. The automotive use according to claim 3, wherein the front window glass, the roof glass, and the rear window glass are juxtaposed through a narrow resin panel or resin molding having the same thickness as the glass plate. Car body structure considering glass antenna performance. In the vehicle body structure considering the performance of an automotive glass antenna having an AM / FM antenna in the upper margin of the rear window glass defogger and a sunroof window in the roof,
A roof panel having at least one opening is provided at the center of a metal roof connected to the vehicle body, and the roof is formed on the entire upper surface of the metal frame-shaped glass support panel that matches the outer peripheral shape of the roof panel. After the glass is overlaid and fixed, the glass support panel is overlaid and fixed on the roof panel frame and grounded, and the rear window is opened from the inner end of the outer peripheral frame on the rear side of the roof panel or the glass support panel. A vehicle body structure in consideration of the performance of a glass antenna for an automobile, wherein a width of a metal portion up to an inner upper end of a glass flange frame is set to 300 mm or more and 400 mm or less.   The frequency of the wavelength corresponding to the total length of the four sides of the opening on the rear side of the glass support panel is outside the wavelength range of the FM broadcast wave band, and the opening acts as an antenna and the radio wave in the FM broadcast wave band. 6. The vehicle body structure in consideration of the performance of the glass antenna for an automobile according to claim 5, characterized in that the electromagnetic wave is resonated so as not to absorb radio waves.   A plurality of roof glasses arranged on the upper part of the glass support frame are arranged in parallel for each opening so as to cover each opening, so that the front window glass, the roof glass, and the rear window glass are formed into a continuous glass surface shape. The vehicle body structure considering the glass antenna performance for an automobile according to claim 5 or 6, wherein a roof glass is fixed on the glass support frame.   8. The automotive use according to claim 7, wherein the front window glass, the roof glass, and the rear window glass are juxtaposed through a narrow resin panel or resin molding having the same thickness as the glass plate. Car body structure considering glass antenna performance.   9. The glass antenna performance for an automobile according to claim 5, wherein a ground position between the glass support panel and the roof panel is an outer peripheral frame corner portion on a rearmost side of the glass support panel. Car body structure.   The glass support panel is provided with two opening windows, the opening on the front side is a movable opening / closing window, and the opening on the rear side is a fixed fitting window. A vehicle body structure considering the performance of the glass antenna for automobiles as described above.   When a motor that drives the movable roof glass back and forth is attached to the lower surface of the rearmost frame portion of the glass support panel, the front end of the rearmost frame portion of the roof panel is located below and covers the motor. The vehicle body structure considering the glass antenna performance for an automobile according to claim 10, further comprising a bent shielding portion having an L-shaped cross section.

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