JPH08148916A - On-vehicle antenna device - Google Patents

On-vehicle antenna device

Info

Publication number
JPH08148916A
JPH08148916A JP29081494A JP29081494A JPH08148916A JP H08148916 A JPH08148916 A JP H08148916A JP 29081494 A JP29081494 A JP 29081494A JP 29081494 A JP29081494 A JP 29081494A JP H08148916 A JPH08148916 A JP H08148916A
Authority
JP
Japan
Prior art keywords
case
magnet
sheet
antenna device
protective sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP29081494A
Other languages
Japanese (ja)
Inventor
Shigemi Ootake
繁臣 大竹
Yutaka Ikeda
豊 池田
Naomi Atsumi
尚己 渥美
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FDK Corp
Original Assignee
FDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FDK Corp filed Critical FDK Corp
Priority to JP29081494A priority Critical patent/JPH08148916A/en
Publication of JPH08148916A publication Critical patent/JPH08148916A/en
Pending legal-status Critical Current

Links

Landscapes

  • Waveguide Aerials (AREA)
  • Support Of Aerials (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

PURPOSE: To eliminate a possibility of damaging a body coated surface even when large force is applied in an attachment state or attachment and detachment are repeated by covering the car body joining surface of a case bottom surface with a specified thick protective sheet provided with elasticity. CONSTITUTION: A case 2 is composed of an upper case 2a and a lower case 2b, a gasket 4 for providing a waterproof property and an airtight property is inserted to the combining surface of both and both are fastened by a screw 10. A circular recessed part 2c is formed on the bottom surface of the lower case 2b and a magnet attracting device 5 is attached to the part. The lower surface of the magnet attracting device 5 and the lower surface of the lower case 2b are approximately the same surface, it is the car body joining surface and the thick protective sheet 8 provided with the elasticity composed of a polyester cloth sheet impregnated with epoxy or a silicon rubber sheet is stuck to the car body joining surface by an adhesive. In order to attach this antenna device to the body of an automobile, the protective sheet 8 may be directly joined to the body.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、GPS(グローバル
・ポジショニング・システム)を利用した自動車のナビ
ゲーション装置における車載用アンテナ装置に関し、特
に、自動車のボディ表面にマグネットで磁気吸着して取
り付けるタイプのアンテナ装置の改良に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted antenna device in a car navigation system utilizing a GPS (Global Positioning System), and more particularly to an antenna of a type that is magnetically attracted and attached to a car body surface by a magnet. Regarding the improvement of the device.

【0002】[0002]

【従来の技術】よく知られているように、GPSの電波
を受信する車載用アンテナ装置は、プラスチック製の偏
平な防水ケースに内蔵されており、側部からアンテナケ
ーブルが引き出されている。そして、このアンテナ装置
はマグネットの磁気吸着力を利用して鋼板製の自動車ボ
ディ(トランクリッドなど)の外表面に取り付けられて
いる。
2. Description of the Related Art As is well known, a vehicle-mounted antenna device for receiving GPS radio waves is built in a flat waterproof case made of plastic, and an antenna cable is pulled out from a side portion. This antenna device is attached to the outer surface of a steel plate automobile body (such as a trunk lid) by utilizing the magnetic attraction force of a magnet.

【0003】上記磁気吸着力を利用した取付構造として
は、マグネット吸着器がケース底面の外側に露出してい
るものと、アンテナ装置のケース底面の内側にマグネッ
ト吸着器が内蔵されたものとがある。
As the mounting structure utilizing the magnetic attraction force, there are one in which the magnet attractor is exposed outside the bottom face of the case and one in which the magnet attractor is built inside the bottom face of the case of the antenna device. .

【0004】[0004]

【発明が解決しようとする課題】しかしながら、前者の
構造では、マグネット吸着器により車体に取り付けた状
態でアンテナ装置に大きな平行力が加わったり、アンテ
ナ装置の取り付け・取り外しを繰り返したりすると、ボ
ディの塗装面に擦り傷や切り傷をつけやすいという問題
がある。特に、高級な塗装面に傷をつけると自動車の外
観が低下するし、その補修も簡単ではない。
However, in the former structure, when a large parallel force is applied to the antenna device while it is attached to the vehicle body by the magnetic attraction device, or when the antenna device is repeatedly attached and detached, the body is painted. There is a problem that the surface is easily scratched or cut. In particular, scratching a high-grade painted surface deteriorates the appearance of the automobile, and repairing it is not easy.

【0005】また、後者の構成ではプラスチック製のケ
ース面が車体に接するので、当たりが比較的やわらか
で、金属製のマグネット吸着器が直接車体に接する前者
に比べてボディを傷つけにくい面がある。しかしマグネ
ット内蔵タイプのものでは、車体とマグネットとのギャ
ップが非常に大きくなるので、強力なマグネットでない
と充分な吸着力が得られず、したがって大型で高価にな
ってしまう。またマグネット内蔵タイプでも、ケース底
面と車体との間に微細な粒子性のゴミなどを挟み込んで
いると、ボディの塗装面を傷つけてしまう。
Further, in the latter construction, the plastic case surface contacts the vehicle body, so the contact is relatively soft and there is a surface that is less likely to damage the body than the former case where the metal magnet attractor directly contacts the vehicle body. However, in the magnet built-in type, the gap between the vehicle body and the magnet becomes very large, so that a strong magnet cannot obtain a sufficient attracting force, and thus it is large and expensive. Even with the magnet built-in type, if fine particles of dust are caught between the bottom of the case and the car body, the painted surface of the body will be damaged.

【0006】そこで従来一般的には、ボディ塗装面を保
護する目的で、アンテナ装置を取り付ける位置の車体表
面にマイラやポリエステルなどの樹脂材料からなる粘着
式の樹脂箔シートを貼り付けて、その上にアンテナ装置
を磁気吸着させている。しかし、この樹脂箔シートは非
常に薄いので、車体に貼り付けたシートが徐々に傷つい
て劣化し、保護シートとしての役目をなさなくなるとい
う問題がある。特に、洗車時にアンテナ装置をいったん
取り外して再び付けるということを繰り返していると、
取り付け・取り外しのストレスと洗車のストレスで樹脂
箔シートが破れたりして消耗が激しくなる。またアンテ
ナ取り付け位置を変更する場合には、車体に貼り付けた
樹脂箔シートを剥がさなければならないが、強力な粘着
剤の付いた樹脂箔シートはいったん車体表面に付ける
と、これをきれいに剥がすのが非常に面倒であり、シー
トを剥がしたり車体に残った粘着剤を除去する作業中に
塗装面を傷つけることが多かった。
Therefore, in general, for the purpose of protecting the painted surface of the body, an adhesive resin foil sheet made of a resin material such as mylar or polyester is pasted on the surface of the vehicle body where the antenna device is attached, and the resin sheet is placed on top of it. The antenna device is magnetically attracted to. However, since this resin foil sheet is very thin, there is a problem in that the sheet attached to the vehicle body is gradually damaged and deteriorated, and cannot serve as a protective sheet. Especially when repeatedly removing and reattaching the antenna device when washing the car,
The resin foil sheet may be torn due to the stress of installation / removal and the stress of car wash, resulting in severe wear. Also, when changing the antenna mounting position, the resin foil sheet attached to the vehicle body must be peeled off, but once the resin foil sheet with a strong adhesive is attached to the vehicle body surface, it can be peeled off cleanly. It was very troublesome and often scratched the painted surface during the work of peeling off the sheet or removing the adhesive remaining on the vehicle body.

【0007】この発明は前述した従来の問題点に鑑みな
されたもので、その目的は、取り付け状態で大きな平行
力が加わったり、取り付け・取り外しを繰り返したりし
てもボディ塗装面を傷つけるおそれがなく、車体表面と
マグネット吸着器とのギャップが小さくて強力な吸着力
が得られ、取り付け位置の変更もなんら問題なく行える
ようにした車載用アンテナ装置を提供することにある。
The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to prevent a damage on a painted surface of a body even if a large parallel force is applied in a mounted state or repeated mounting and dismounting. An object of the present invention is to provide a vehicle-mounted antenna device that has a small gap between the surface of the vehicle body and the magnet attracting device, can obtain a strong attracting force, and can change the mounting position without any problem.

【0008】[0008]

【課題を解決するための手段】そこでこの発明では、皿
状のヨークと偏平なリング型マグネットを組み合わせた
マグネット吸着器を前記ケースの底面部分に外側に露出
した状態で配設するとともに、このマグネット吸着器の
車体接合面および周辺の前記ケース底面に厚手で弾力性
のあるエポキシ含浸ポリエステルクロスシートまたはシ
リコンラバーシートからなる保護シートを粘着剤により
貼り付けた。
In view of the above, according to the present invention, a magnet adsorber, which is a combination of a dish-shaped yoke and a flat ring magnet, is arranged on the bottom surface of the case while being exposed to the outside. A thick and elastic protective sheet made of an epoxy-impregnated polyester cloth sheet or a silicone rubber sheet was attached to the vehicle body joint surface of the adsorber and the peripheral bottom surface of the case with an adhesive.

【0009】[0009]

【作用】ケース底面の車体接合面が厚手で弾力性のある
エポキシ含浸ポリエステルクロスシートまたはシリコン
ラバーシートからなる保護シートで被覆されているの
で、プラスチックケース内にマグネットを収納した従来
タイプのアンテナ装置より自動車のボディ表面に対する
当たりは格段にやわらかであり、ボディの塗装面を傷つ
けるおそれはほとんどなくなる。前記保護シートは厚手
だといっても、従来のマグネット内蔵タイプの場合のプ
ラスチックケースの底面板の厚に比べて格段に薄く、し
たがってマグネット吸着器と車体表面とのギャップは充
分に小さく保たれる。そのため強力な磁気吸着力が得ら
れる。
[Function] Since the body joint surface on the bottom of the case is covered with a thick and elastic protective sheet made of epoxy-impregnated polyester cloth sheet or silicone rubber sheet, it is better than the conventional antenna device in which a magnet is housed in a plastic case. The contact with the car body surface is much softer, and there is almost no risk of damaging the painted surface of the body. Even though the protective sheet is thick, it is much thinner than the bottom plate of the plastic case in the case of the conventional built-in magnet type, and therefore the gap between the magnet attractor and the vehicle body surface is kept sufficiently small. . Therefore, a strong magnetic attraction force can be obtained.

【0010】[0010]

【実施例】図1〜図3にこの発明の一実施例による車載
用アンテナ装置の構成を示している。図1に詳細に示す
ように、アンテナ本体1がプラスチック製の偏平なケー
ス2に密封され、ケース側部からアンテナケーブル3が
引き出されている。ケース2は上ケース2aと下ケース
2bからなり、両者の組み合わせ面には防水性および気
密性をもたせるためにガスケット4が挟み込まれ、両者
は複数のネジ10で締結されている。
1 to 3 show the structure of a vehicle-mounted antenna device according to an embodiment of the present invention. As shown in detail in FIG. 1, the antenna body 1 is sealed in a flat case 2 made of plastic, and the antenna cable 3 is pulled out from the side portion of the case. The case 2 is composed of an upper case 2a and a lower case 2b, and a gasket 4 is sandwiched between the combination surfaces of the upper case 2a and the lower case 2b so as to have waterproofness and airtightness, and both are fastened with a plurality of screws 10.

【0011】下ケース2bの底面には円形の凹部2cが
形成されており、その部分にマグネット吸着器5が取り
付けられている。マグネット吸着器5は、図2に詳細を
示すように、中央凸部のある皿状のヨーク5aと偏平な
リング型マグネット5bを組み合わせたものである。リ
ング型のマグネット5bは両面粘着シート6によりヨー
ク5aにはめ込むように接合され、ヨーク5aが両面粘
着シート7によりケース底面の凹部2cにはめ込むよう
に接合されている。
A circular recess 2c is formed on the bottom surface of the lower case 2b, and a magnet attractor 5 is attached to the recessed portion 2c. As shown in detail in FIG. 2, the magnet attractor 5 is a combination of a dish-shaped yoke 5a having a central convex portion and a flat ring-shaped magnet 5b. The ring-shaped magnet 5b is joined to the yoke 5a by a double-sided adhesive sheet 6, and the yoke 5a is joined to the recess 2c on the bottom surface of the case by a double-sided adhesive sheet 7.

【0012】マグネット吸着器5の下面と下ケース2b
の下面(凹部2cの周辺)はほぼ面一になっており、こ
こが車体接合面である。この車体接合面に厚手で弾力性
のあるエポキシ含浸ポリエステルクロスシート(例えば
日東電工株式会社製のNO.351)またはシリコンラ
バーシートからなる保護シート8を粘着剤により貼り付
けている。図3に示すように、このアンテナ装置を自動
車ボディ9に取り付けるには、従来のようにボディ表面
に樹脂箔シートを貼り付ける必要はまったくなく、アン
テナ装置底面の保護シート8を直接ボディに接合すれば
よい。
The lower surface of the magnet attractor 5 and the lower case 2b
The lower surface (around the recess 2c) is substantially flush, and this is the vehicle body joint surface. A thick and elastic epoxy-impregnated polyester cloth sheet (for example, NO.351 manufactured by Nitto Denko Corporation) or a protective sheet 8 made of a silicone rubber sheet is attached to the joint surface of the vehicle body with an adhesive. As shown in FIG. 3, in order to attach the antenna device to the vehicle body 9, there is no need to attach a resin foil sheet to the body surface as in the conventional case, and the protective sheet 8 on the bottom surface of the antenna device can be directly bonded to the body. Good.

【0013】[0013]

【発明の効果】この発明の車載用アンテナ装置では、ケ
ース底面の車体接合面が厚手で弾力性のあるエポキシ含
浸ポリエステルクロスシートまたはシリコンラバーシー
トからなる保護シートで被覆されているので、プラスチ
ックケース内にマグネットを収納した従来タイプのアン
テナ装置より自動車のボディ表面に対する当たりは格段
にやわらかであり、ボディの塗装面を傷つけるおそれは
ほとんどなくなる。そのため車体側に樹脂箔シートを貼
り付ける必要がなく、したがってアンテナ装置の取り付
け位置の変更も自在である。
In the vehicle-mounted antenna device of the present invention, since the vehicle body joint surface on the bottom surface of the case is covered with the protective sheet made of the thick and elastic epoxy impregnated polyester cloth sheet or silicon rubber sheet, the inside of the plastic case It is much softer to hit the surface of the car body than a conventional type antenna device that houses a magnet, and there is almost no risk of damaging the painted surface of the car body. Therefore, it is not necessary to attach the resin foil sheet to the vehicle body side, and therefore the mounting position of the antenna device can be freely changed.

【0014】また前記保護シートは厚手だといっても、
従来のマグネット内蔵タイプの場合のプラスチックケー
スの底面板の厚にに比べて格段に薄く、したがってマグ
ネット吸着器と車体表面とのギャップは充分に小さく保
たれる。そのため強力な磁気吸着力が得られる。
Although the protective sheet is thick,
Compared with the thickness of the bottom plate of the plastic case in the case of the conventional magnet built-in type, the gap between the magnet adsorber and the vehicle body surface is kept sufficiently small. Therefore, a strong magnetic attraction force can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の一実施例による車載用アンテナ装置
の断面図である。
FIG. 1 is a sectional view of a vehicle-mounted antenna device according to an embodiment of the present invention.

【図2】同上実施例装置におけるマグネット吸着器の分
解斜視図である。
FIG. 2 is an exploded perspective view of a magnet attractor in the apparatus of the above embodiment.

【図3】同上アンテナ装置を自動車ボディに取り付けた
状態を示す図である。
FIG. 3 is a view showing a state in which the above antenna device is attached to an automobile body.

【符号の説明】[Explanation of symbols]

1 アンテナ本体 2 ケース 2a 上ケース 2b 下ケース 2c 凹部 3 アンテナケーブル 4 ガスケット 5 マグネット吸着器 5a 皿状ヨーク 5b リング型マグネット 6、7 両面粘着シート 8 エポキシ含浸ポリエステルクロスシートまたはシリ
コンラバーシートからなる保護シート 9 自動車ボディ
1 antenna body 2 case 2a upper case 2b lower case 2c recess 3 antenna cable 4 gasket 5 magnet adsorber 5a dish-shaped yoke 5b ring magnet 6,7 double-sided adhesive sheet 8 protective sheet made of epoxy impregnated polyester cloth sheet or silicone rubber sheet 9 Car body

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 アンテナ本体1がプラスチック製の偏平
なケース2に密封され、ケース側部からアンテナケーブ
ル3が引き出された車載用アンテナ装置であって、皿状
のヨーク5aと偏平なリング型マグネット5bを組み合
わせたマグネット吸着器5が前記ケース2の底面部分2
cに外側に露出した状態で配設されているとともに、こ
のマグネット吸着器5の車体接合面および周辺の前記ケ
ース底面に厚手で弾力性のあるエポキシ含浸ポリエステ
ルクロスシートまたはシリコンラバーシートからなる保
護シート8が粘着剤により貼り付けられていることを特
徴とする車載用アンテナ装置。
1. An in-vehicle antenna device in which an antenna body 1 is sealed in a flat case 2 made of plastic, and an antenna cable 3 is pulled out from a side portion of the case, which is a dish-shaped yoke 5a and a flat ring magnet. The magnet attracting device 5 in which 5b is combined is a bottom part 2 of the case 2.
The protective sheet is made of an epoxy-impregnated polyester cloth sheet or a silicone rubber sheet, which is disposed so as to be exposed to the outside in c and is thick and elastic on the vehicle body joint surface of the magnet adsorber 5 and the peripheral bottom surface of the case. 8. An in-vehicle antenna device, wherein 8 is attached with an adhesive.
JP29081494A 1994-11-25 1994-11-25 On-vehicle antenna device Pending JPH08148916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29081494A JPH08148916A (en) 1994-11-25 1994-11-25 On-vehicle antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29081494A JPH08148916A (en) 1994-11-25 1994-11-25 On-vehicle antenna device

Publications (1)

Publication Number Publication Date
JPH08148916A true JPH08148916A (en) 1996-06-07

Family

ID=17760835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29081494A Pending JPH08148916A (en) 1994-11-25 1994-11-25 On-vehicle antenna device

Country Status (1)

Country Link
JP (1) JPH08148916A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000243468A (en) * 1998-12-09 2000-09-08 Saint Gobain Vitrage Contact device for electric function element disposed on window
EP1152478A1 (en) * 2000-04-20 2001-11-07 Alps Electric Co., Ltd. GPS receiving antenna with ensured magnet attraction and firm mounting of antenna body
EP1253665A2 (en) * 2001-04-25 2002-10-30 Alps Electric Co., Ltd. Waterproof structure of antenna
EP1753078A1 (en) * 2004-06-02 2007-02-14 The Yokohama Rubber Co., Ltd. Vehicle-mounted communication antenna

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000243468A (en) * 1998-12-09 2000-09-08 Saint Gobain Vitrage Contact device for electric function element disposed on window
EP1152478A1 (en) * 2000-04-20 2001-11-07 Alps Electric Co., Ltd. GPS receiving antenna with ensured magnet attraction and firm mounting of antenna body
US6384791B1 (en) 2000-04-20 2002-05-07 Alps Electric Co., Ltd. GPS receiving antenna with ensured magnet attraction and firm mounting of antenna body
EP1253665A2 (en) * 2001-04-25 2002-10-30 Alps Electric Co., Ltd. Waterproof structure of antenna
EP1253665A3 (en) * 2001-04-25 2003-09-03 Alps Electric Co., Ltd. Waterproof structure of antenna
US6690335B2 (en) 2001-04-25 2004-02-10 Alps Electric Co., Ltd. Excellent waterproof antenna
EP1753078A1 (en) * 2004-06-02 2007-02-14 The Yokohama Rubber Co., Ltd. Vehicle-mounted communication antenna
EP1753078A4 (en) * 2004-06-02 2008-03-19 Yokohama Rubber Co Ltd Vehicle-mounted communication antenna

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