JPH11165593A - Cowl louver with built-in antenna - Google Patents

Abstract

(57) [Summary] In a vehicle running on a road, an antenna unit is arranged on a cowl louver between a hood and a front window to prevent a reduction in radio wave reception,
Give a sense of unity with the cowl louver. SOLUTION: In a vehicle running on a road, a cowl louver 3 between a bonnet 1 and a front window 2 has a G.
An antenna-mounted cowl louver provided with an antenna unit 4 having a PS antenna 41 and others.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle running on a road, in which an antenna unit is disposed on a cowl louver between a hood and a front window to prevent a reduction in the amount of received radio waves and to provide a sense of unity with the cowl louver. The present invention relates to a cowl louver with a built-in antenna that eliminates the feeling of foreign objects and improves the appearance.

[0002]

2. Description of the Related Art In a conventional vehicle, an antenna unit A is disposed above a dashboard D in a vehicle compartment below a windshield F as shown in FIG.

[0003]

In the above-mentioned conventional vehicle, the antenna unit A is disposed above the dashboard D below the windshield F, so that the antenna unit A is located between the antenna unit A and the geostationary satellite. There is a problem that the amount of transmitted and received radio waves is reduced due to the influence of the windshield F that is interposed.

In the above-mentioned conventional vehicle, the antenna unit A is disposed above the dashboard D, which is supposed to have nothing. Therefore, since the vehicle is seen through the windshield F, there is a feeling of foreign matter. There was a problem that it looked bad.

The inventors of the present invention have focused on the technical idea of the present invention in which an antenna unit is provided on a cowl louver between a hood and a front window in a vehicle running on a road, and have further repeated research and development. As a result, the present invention achieves the object of preventing the decrease in the amount of received radio waves and providing a sense of unity with the cowl louver, thereby eliminating the feeling of foreign objects and improving the appearance.

[0006]

According to a first aspect of the present invention, a cowl louver with an antenna is provided on a cowl louver between a hood and a front window in a vehicle running on a road. It was done.

[0007] The cowl louver with an antenna according to the present invention (the second invention according to the second aspect) is characterized in that, in the first aspect,
The antenna unit includes a GPS antenna.

According to a third aspect of the present invention, there is provided the cowl louver with the built-in antenna according to the second aspect of the present invention.
The antenna unit includes an FM multiplex antenna.

[0009] The cowl louver with an antenna according to the present invention (fourth invention according to claim 4) is characterized in that in the third invention,
The antenna unit includes a radio beacon and an optical beacon.

A cowl louver with an antenna according to the present invention (fifth invention according to claim 5) according to the fourth invention,
The antenna unit is inserted in a case attached to the cowl louver.

According to a fourth aspect of the present invention, there is provided a cowl louver incorporating an antenna according to the present invention (a sixth aspect of the present invention).
The antenna unit is interposed in a case integrally formed with the cowl louver.

According to a fifth aspect of the present invention, there is provided a cowl louver incorporating an antenna according to the present invention (a seventh aspect of the present invention).
A transparent window member is attached to an opening portion of the cowl louver facing the optical beacon disposed in the case.

The cowl louver with an antenna according to the present invention (an eighth invention according to an eighth aspect) is the fifth aspect of the present invention,
A transparent window portion is integrally formed with the cowl louver by two-color molding at a portion of the cowl louver opposed to the optical beacon provided in the case.

[0014]

According to the first aspect of the present invention, the cowl louver with the antenna according to the first aspect of the present invention has a structure in which the antenna unit is disposed on the cowl louver between the hood and the front window in a vehicle running on a road, so By preventing a decrease in the amount of reception and by giving a sense of unity with the cowl louver, an effect of eliminating the feeling of foreign matter and improving the appearance can be achieved.

In the cowl louver according to the second aspect of the present invention having the above-mentioned structure, in the first aspect, since the antenna unit has a GPS antenna, the current position of the vehicle can be grasped by communication with a geostationary satellite. This has the effect of making it possible.

In the cowl louver according to the third aspect of the present invention, the antenna unit includes the FM multiplex antenna according to the second aspect of the present invention, so that the antenna unit can communicate with the geostationary satellite received by the FM multiplex antenna. There is an effect that it is possible to receive the obtained error information of the current position of the vehicle and to grasp the accurate current position of the vehicle.

In the cowl louver according to the fourth aspect of the present invention, the antenna unit includes the radio beacon and the optical beacon according to the third aspect of the present invention. There is an effect that it is possible to receive general road information by using a beacon and grasp traffic jam information, traffic regulation information, and parking lot information.

In the cowl louver according to the fifth aspect of the present invention, the antenna unit is inserted in a case mounted on the cowl louver. This makes it possible to attach and detach the case to and from the cowl louver, thereby facilitating maintenance and service.

In the cowl louver according to the sixth aspect of the present invention, the case in which the antenna unit is inserted is formed integrally with the cowl louver according to the fourth aspect of the present invention. This has the effect of eliminating the need for attachment / detachment.

In the cowl louver of the seventh invention having the above-mentioned structure, in the fifth invention, a transparent window member is attached to an opening of the cowl louver facing the optical beacon disposed in the case. Therefore, it is possible to receive information from beacons placed at intervals through the transparent window member and to prevent dust from entering.

In the cowl louver of the eighth invention having the above-mentioned structure, in the fifth invention, a transparent window portion is formed by two-color molding at a portion of the cowl louver opposed to the optical beacon provided in the case. Since it is molded integrally with the cowl louver, while receiving information from the beacon installed at an interval through the transparent window member, it is possible to prevent the intrusion of dust,
This has the effect of eliminating the need for mounting a transparent window member.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention are described below.
This will be described with reference to the drawings.

(First Embodiment) As shown in FIGS. 1 to 6, a cowl louver with an antenna is mounted on a cowl louver 3 between a hood 1 and a front window 2 as shown in FIGS. An antenna unit 4 including a GPS antenna 41 and the like is provided.

The cowl louver 3 is a member 30 made of a synthetic resin such as polypropylene disposed between the flat hood 1 and the inclined front window 2 connected to the flat roof 5 as shown in FIG. It is constituted by.

The antenna unit 4 has a radio beacon and an optical beacon 420, which will be described later, as shown in FIG.
The reference numeral 440 is interposed in a substantially rectangular parallelepiped case 6 mounted at an angle of 7 degrees with respect to the center of the vehicle, which is the center of the vehicle in the width direction.

As shown in FIGS. 2 and 3, the case 6 is constituted by a case member 60 having a U-shaped cross section having an opening formed on one of the opposing surfaces having the largest area. A rectangular fixing portion for fixing the cowl louver 3 to the cowl louver 3 with a screw is formed on four side walls in the width direction and the width direction.

FIG. 2 shows a bottom surface 61 of the case member 60.
As shown in FIG. 3, a breathing tube 63 for preventing dew condensation is provided, and a rectangular substrate 62 is fixed at four places at its four corners by screws, and a GPS antenna 41 and a radio wave are mounted on the upper surface of the substrate. Beacon antenna 43,
Optical beacon antennas 44 are provided side by side. The harness connected to each antenna is led out through a grommet inserted into a hole in the side wall of the case 6.

FIG. 1 shows an example in which the FM multiplex antenna 42 is provided on the front pillar. However, the FM multiplex antenna can be appropriately provided on the roof 5, the rear pillar, the rear window, the trunk, the rear door, and the like of the vehicle.

The GPS antenna 41 receives three or more radio waves of a geostationary satellite (GPS-Global Positioning System-satellite) launched at a high altitude of 21,000 km around the earth, and based on the principle of triangulation. An antenna for performing three-dimensional positioning of latitude, longitude, and altitude and two-dimensional positioning of latitude and longitude when reception of radio waves from the geostationary satellite is poor is provided.

In the FM multiplex antenna 42, the GPS satellites are under the control of the US Department of Defense, and radio waves from the GPS satellites contain errors in advance in order to avoid military misuse, so that the positioning accuracy is reduced. This is an antenna for preventing the occurrence of a signal, and is connected to an FM multiplex tuner (not shown).

Radio waves from the GPS satellites are received at facilities in various parts of Japan, the position of the facilities is compared with position information based on radio waves from the GPS satellites, errors are confirmed, and the error information is broadcast by FM multiplex radio waves. Differential GP that corrects a position error based on error information due to FM multiplex radio waves received by the FM multiplex tuner using a service
An S (Differential-GPS, abbreviated D-GPS) system is configured.

In the FM multiplex tuner, the D-GP updated every 5 seconds by switching to VICS described later
The information of S is received and reflected in GPS positioning in real time, and this service can be used all over Japan except Okinawa.

The radio beacon antenna 42 is a VICS that is transmitted as radio waves from a radio beacon 420, which is a device installed at regular intervals beside the highway.
It consists of an antenna that receives information (Vehicle Information & Communicatin System information) and receives traffic information around the place where the beacon is installed, such as traffic congestion information / smooth information, travel time information, traffic regulation information, traffic obstacle information, etc. Then, display is enabled.

The optical beacon antenna 44 is mainly constituted by an antenna for receiving VICS information transmitted as infrared rays from an optical beacon 440, which is a device installed at regular intervals beside a general road. It receives traffic congestion information / smooth information, travel time information, traffic regulation information, traffic obstruction information, parking lot information, and the like, which are traffic information around a place, and enables display.

The VICS information is provided from the Tokyo metropolitan area, the service is provided in Osaka and Aichi prefectures, and the service is provided on expressways in the whole country.

As shown in FIG. 3, a square-shaped thin portion 321 is formed around the opening 31 of the cowl louver 3 facing the optical beacon antenna 44 disposed in the case 6. Acrylic rectangular transparent window member 3
2 is attached.

As shown in FIGS. 4 and 5, a plurality of holes are formed in the thin portion 321 of the transparent window member 32, and a plurality of holes protrude from portions facing the opening portion 31 of the cowl louver 3. The protrusion is interposed and fixed by heat welding.

The cowl louver with the antenna according to the first embodiment having the above-described configuration is used in a vehicle traveling on a road.
Since the antenna unit 4 is disposed on the cowl louver 3 between the hood 1 and the front window 2, it is possible to prevent a reduction in the amount of received radio waves and to provide a sense of unity with the cowl louver, thereby eliminating the feeling of a foreign object and providing a good appearance. The effect of improving is achieved.

The cowl louver with the antenna of the first embodiment has an effect that the antenna unit 4 has the GPS antenna 41, so that the current position of the vehicle can be grasped by communication with the geostationary satellite. Play.

Further, since the cowl louver with the antenna of the first embodiment is provided with the FM multiplex antenna 42 on the front pillar, the current position of the vehicle obtained by communication with the geostationary satellite received by the FM multiplex antenna 42 is obtained. And receiving the error information of the vehicle, it is possible to obtain an accurate current position (latitude, longitude, altitude) of the vehicle.

In the cowl louver with an antenna of the first embodiment, since the antenna unit 4 is provided with the radio beacon antenna 43, the device is installed at regular intervals beside the highway by the radio beacon antenna 43. VI transmitted as a radio wave from a beacon
The CS information is received, and the traffic information around the place where the beacon is installed is displayed as traffic congestion information / smooth information, travel time information, traffic regulation information, traffic obstacle information, and the like.

Further, in the cowl louver with the built-in antenna according to the first embodiment, since the antenna unit 4 includes the optical beacon antenna 44, the VICS information transmitted from the optical beacon as infrared rays is received, and the beacon is transmitted. This has the effect of displaying traffic congestion information / smooth information, travel time information, traffic regulation information, traffic obstacle information, parking lot information, etc., which are traffic information around the installed location.

In the cowl louver with the antenna of the first embodiment, the antenna unit 4 is inserted in the case 6 mounted on the cowl louver 3, so that the case 6 in which the antenna unit 4 is inserted is provided. Is removable from the cowl louver 3 to facilitate maintenance and service.

Further, in the cowl louver incorporating the antenna of the first embodiment, the transparent window member 32 is welded to the opening portion 31 of the cowl louver 3 which faces the optical beacon antenna 44 provided in the case. The information from the optical beacon installed at intervals is received via the transparent window member 32, and the effect of preventing dust from entering the optical beacon antenna 44 and preventing accumulation of dust on the optical beacon antenna 44 is obtained. Play.

In the cowl louver with the antenna of the first embodiment, the breathing tube 63 is provided on the bottom surface 61 of the case member 60 as shown in FIGS. The GPS antenna 41 arranged side by side on the upper surface of the substrate fixed inside;
Radio beacon antenna 43 and optical beacon antenna 44
This has the effect that dew condensation is prevented.

(Second Embodiment) A cowl louver with a built-in antenna according to the second embodiment is a cowl louver opposed to the optical beacon antenna 44 disposed in the case 4 as shown in FIGS. 1, 7 to 9. The transparent window portion 33 is formed by two-color molding on the opposing portion of the cowl louver body 30.
The difference is that it is formed integrally with the above. The following description will focus on the difference.

In the second embodiment, the transparent window portion 33 is formed integrally with the cowl louver main body 30 by two-color molding using a core back method. By moving the slide core 72 in the mold, two kinds of materials are moved into the cavity, and the cavity configuration is switched, sequentially injected, and integrally molded.

As shown in FIG. 9 (A), the cowl louver main body 30 is pushed in a state where the slide core 72 corresponding to the transparent window portion 33 is pushed into a fixed mold 70 facing a movable mold 71 for molding the cowl louver 3. Is injection molded.

Next, as shown in FIG. 9 (B), acrylic or other transparent resin is injected into a gap corresponding to the transparent window 33 formed when the slide core 72 is pulled in. To form the transparent window portion 33 integrally with the main body portion 30.

The cowl louver according to the second embodiment having the above-described structure is provided with a transparent window portion 33 formed by two-color molding on a portion 33 of the cowl louver 3 opposed to the optical beacon antenna 44 provided in the case 6. Is integrally formed with the cowl louver 3, so that information from the beacon placed at an interval can be transmitted to the transparent window portion 33.
Is to be received via

The cowl louver with the antenna according to the second embodiment having the above-described operation has the effect of preventing a reduction in the amount of received radio waves and providing a sense of unity with the cowl louver, thereby eliminating the feeling of foreign matter and improving the appearance.

Further, the cowl louver with the built-in antenna according to the second embodiment comprises a portion 33 of the cowl louver 3 which faces the optical beacon antenna 44 provided in the case 6.
In addition, since the transparent window portion 33 is formed integrally with the cowl louver 3 by two-color molding, an effect is obtained that the number of steps for mounting the transparent window member in the first embodiment becomes unnecessary.

Further, in the cowl louver incorporating the antenna of the second embodiment, the transparent window portion 33 is integrally formed with the cowl louver 3 by the above-described two-color molding on the portion 33 of the cowl louver 3 facing the optical beacon antenna 44. Therefore, it is possible to prevent dust from entering and prevent the dust from accumulating on the optical beacon antenna 44.

The above-described embodiment has been described by way of example only, and the present invention is not limited to the embodiment. Modifications and additions are possible without departing from the technical idea of the present invention.

In the above-described embodiment, as an example, the transparent window member 32 and the transparent window portion 33 are formed in the cowl louver 3 at the facing portion of the cowl louver 3 facing the optical beacon antenna 44 disposed in the case 6. Although an example has been described, the present invention is not limited thereto, and a mode in which a transparent member 64 as a lid member over the entire case 6 is provided as shown in FIG. 10 can be adopted. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing an antenna-mounted cowl louver according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the antenna unit according to the first embodiment.

FIG. 3 is a cross-sectional view illustrating the antenna unit according to the first embodiment.

FIG. 4 is an exploded perspective view showing an opening of the cowl louver and a transparent window member in the first embodiment.

FIG. 5 is a cross-sectional view of the opening of the cowl louver and the transparent window member according to the first embodiment, taken along line CC in FIG. 4;

FIG. 6 is an explanatory plan view for explaining an arrangement posture of the antenna unit in the first embodiment.

FIG. 7 is a cross-sectional view of the optical beacon antenna and the transparent window portion of the cowl louver according to the second embodiment of the present invention, taken along line AA in FIG.

FIG. 8 is a cross-sectional view of the optical beacon antenna and the transparent window of the cowl louver according to the second embodiment, taken along line BB in FIG.

FIG. 9 is a cross-sectional view of a mold showing molding of a main body portion and molding of a transparent window portion of a two-color molding cowl louver in the second embodiment.

FIG. 10 is an exploded perspective view showing a case member and a transparent lid member according to another embodiment of the present invention.

FIG. 11 is a perspective view showing an arrangement of an antenna unit in a conventional vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bonnet 2 Front window 3 Cowl louver 4 Antenna unit 41 GPS antenna

Continued on the front page (71) Applicant 000002130 Sumitomo Electric Industries, Ltd. 4-33, Kitahama, Chuo-ku, Osaka-shi, Osaka (72) Inventor Shinji Kinzen 1 Ochiai-Ochiai Nagahata, Kasuga-cho, Nishikasugai-gun, Aichi Prefecture Toyoda Gosei (72) Inventor: Tetsumi Ichioka, 1 Ochiai, Nagahata, Kasuga-cho, Nishi-Kasugai-gun, Aichi Prefecture Inside Toyoda Gosei Co., Ltd. In-house (72) Inventor Yozo Nishiura 1-7-10 Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture Inside Harness Research Institute

Claims (8)

[Claims] 1. A cowl louver with a built-in antenna, wherein an antenna unit is provided on a cowl louver between a hood and a front window in a vehicle running on a road. 2. The cowl louver according to claim 1, wherein the antenna unit includes a GPS antenna. 3. The cowl louver according to claim 2, wherein the antenna unit includes an FM multiplex antenna. 4. The cowl louver according to claim 3, wherein the antenna unit includes a radio beacon and an optical beacon. 5. The cowl louver according to claim 4, wherein the antenna unit is inserted in a case attached to the cowl louver. 6. The cowl louver according to claim 4, wherein the antenna unit is inserted into a case formed integrally with the cowl louver. 7. The cowl louver according to claim 5, wherein a transparent window member is attached to an opening of the cowl louver facing the optical beacon disposed in the case. 8. The cowl louver according to claim 5, wherein a transparent window portion is formed integrally with the cowl louver by two-color molding on a portion of the cowl louver opposed to the optical beacon disposed in the case. Cowl louver with built-in antenna.