JP4646413B2 - Antenna device - Google Patents

Antenna device Download PDF

Info

Publication number
JP4646413B2
JP4646413B2 JP2001012187A JP2001012187A JP4646413B2 JP 4646413 B2 JP4646413 B2 JP 4646413B2 JP 2001012187 A JP2001012187 A JP 2001012187A JP 2001012187 A JP2001012187 A JP 2001012187A JP 4646413 B2 JP4646413 B2 JP 4646413B2
Authority
JP
Japan
Prior art keywords
antenna
joint member
resin joint
cylindrical body
antenna element
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.)
Expired - Fee Related
Application number
JP2001012187A
Other languages
Japanese (ja)
Other versions
JP2002217624A (en
Inventor
清雄 平工
淳 梅澤
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.)
NEC Corp
NEC Anten Ltd
Original Assignee
NEC Corp
NEC Anten Ltd
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 NEC Corp, NEC Anten Ltd filed Critical NEC Corp
Priority to JP2001012187A priority Critical patent/JP4646413B2/en
Publication of JP2002217624A publication Critical patent/JP2002217624A/en
Application granted granted Critical
Publication of JP4646413B2 publication Critical patent/JP4646413B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Description

【0001】
本発明は、携帯無線機等に用いられるアンテナ装置に関し、特に、製造が容易であって価格を低減することができるアンテナ装置に関する。
【0002】
【従来の技術】
一般に、普及している携帯電話機には通話のための電波を送受信するアンテナ装置が備えられている。一般に、このアンテナ装置は、携帯に便利なように、携帯電話機本体の箱体に収納および引き出し可能に支持されている。このアンテナ装置においては、アンテナ装置の全体を携帯電話機本体の箱体に収納した時には、送受信が不良となることから、アンテナ装置の上部にヘリカルアンテナ部を設けることにより、アンテナ装置を携帯電話機本体の箱体に収納した時に前記ヘリカルアンテナ部を携帯電話機本体の箱体の外に突出させた状態で使用するようにしている。
このようなアンテナ装置として、従来より図5および図6示すものが知られている。図5および図6示すように、このアンテナ装置は、無線機本体に収納および引き出し可能に支持されている第1のアンテナ部101と、この第1のアンテナ部101の上端部に形成された樹脂ジョイント部材102と、この樹脂ジョイント部材102に取り付けられる接続金具103と、第1のアンテナ部101に樹脂ジョイント部材102および接続金具103を介して取り付けられる第2のアンテナ部104とを備えている。
樹脂ジョイント部材102は、ほぼ棒状に形成されている。樹脂ジョイント部材102の上部には、雄ねじが形成されている。一方、接続金具103は、上下端を開口した筒状体で構成されている。この接続金具103の内周部には、雌ねじが形成されている。樹脂ジョイント部材102を接続金具103の内部に挿入して樹脂ジョイント部材102の雄ねじを接続金具103の雌ねじに螺合することにより、樹脂ジョイント部材102と接続金具103とが接続(連結)される。
【0003】
【発明が解決しようとする課題】
しかしながら、従来のアンテナ装置においては、樹脂ジョイント部材102に雄ねじを形成し、接続金具103に雌ねじを形成し、樹脂ジョイント部材102の雄ねじを接続金具103の雌ねじに螺合する必要があるから、製造が困難であるという問題がある。
本発明の課題は、このような問題を解決することにあり、製造が容易であり、かつ、第2のアンテナ部が第1のアンテナ部から離脱するのを防止することができるアンテナ装置を提供することにある。
【0004】
【課題を解決するための手段】
前記課題を解決するために、請求項に記載の発明は、無線機本体に収納および引き出し可能に支持されている第1のアンテナ部と、この第1のアンテナ部の上端部に連結された樹脂ジョイント部材と、この樹脂ジョイント部材に取り付けられる接続金具と、前記第1のアンテナ部に前記樹脂ジョイント部材および前記接続金具を介して取り付けられる第2のアンテナ部とを備え、前記第1のアンテナ部は、第1のアンテナ素子と、この第1のアンテナ素子を被覆している保護被膜とを有し、前記第2のアンテナ部は、第2のアンテナ素子と、この第2のアンテナ素子が取り付けられ上下端が開口された中空筒状体とを有し、前記樹脂ジョイント部材は、前記保護被膜と連結され前記中空筒状体の内部に収容される棒状体と、この棒状体の上端部に外径がこの棒状体より大きいように形成され前記中空筒状体に支持される頂部とを有し、前記接続金具は、前記樹脂ジョイント部材の前記棒状体が挿通される接続筒状体と、この接続筒状体の上外周部に形成され前記中空筒状部の下端部を支持する係止突起とを有し、前記第2のアンテナ部は、さらに前記第2のアンテナ素子と前記中空筒状体と前記樹脂ジョイント部材の前記頂部および前記係止突起の外面のほぼ全体を被覆する絶縁被覆部材を有することを特徴とする。
【0005】
【発明の実施の形態】
次に、本発明の実施の形態を図面に基づいて詳細に説明する。
図1は本発明の第1の実施の形態に係るアンテナ装置の一部を透視して示す一部切り欠き斜視図である。図2は図1のアンテナ装置を示す断面図である。
図1および図2に示すように、このアンテナ装置は、ホイップアンテナ部(第1のアンテナ部)1と、このホイップアンテナ部1の上端部に連結された樹脂ジョイント部材2と、この樹脂ジョイント部材2に取り付けられる接続金具3と、ホイップアンテナ部1に樹脂ジョイント部材2および接続金具3を介して取り付けられるヘリカルアンテナ部(第2のアンテナ部)4とを備えている。
ホイップアンテナ部1は、ホイップアンテナ素子(第1のアンテナ素子)1aと、このホイップアンテナ素子1aを被覆している保護被膜1bとを有している。ホイップアンテナ素子1aは、ニッケルとチタンとの合金等の導体により形成された竿状のアンテナ素子である。保護被膜1bは、ポリブチレンテレフタレータ(PBT)等の樹脂で形成されている。ホイップアンテナ部1は、無線機本体(図示せず)に収納および引き出し可能に支持されている。
【0006】
ヘリカルアンテナ部4は、ヘリカルアンテナ素子(第2のアンテナ素子)4aと、このヘリカルアンテナ素子4aが取り付けられ上下端が開口された中空筒状体4bとを有している。ヘリカルアンテナ素子4aは、コイル導体からなり、中空筒状体4bの側壁に埋設されている。中空筒状体4bは、ABS等の樹脂で形成される。ヘリカルアンテナ素子4aは、中空筒状体4bの側壁に埋設した状態になるように中空筒状体4bと一体的に形成される。
樹脂ジョイント部材2は、ホイップアンテナ部1の保護被膜1bと連結された下部2aと、中空筒状体4bの内部に収容され下部2aに一体的に形成され外径がこの下部2aより大きい上部2bとを有している。上部2bの下端面は、下部2aの側面とほぼ直角をなすように形成されている。樹脂ジョイント部材2は、ナイロン等の樹脂で形成される。樹脂ジョイント部材2の下部2aには、下方へ開口された穴部が形成されている。樹脂ジョイント部材2の下部2aと保護被膜1bとは、下部2aの前記穴部に保護被膜1bを圧入することにより連結されている。
接続金具3は、接続筒状体3aと、この接続筒状体3aの上外周部に形成された係止突起3bとを有している。接続筒状体3aは、上下端が開口されており内部に樹脂ジョイント部材2の下部2bが挿通される。係止突起3bは、接続筒状体3aの内部を下部2aが挿通した樹脂ジョイント部材2の上部2bの下端部および中空筒状部4bの下端部を支持する。なお、係止突起3bの上面部には、輪状の支持溝部(図示せず)が形成されている。ヘリカルアンテナ素子4aの下端輪状部が係止突起3bの上面部の輪状の前記支持溝部に挿入されることにより、ヘリカルアンテナ素子4aは接続金具3に固定(接続)された状態で支持され、かつ、電気的にも接続される。接続金具3は、アルミニウム等の金属材料で形成される。
ヘリカルアンテナ部4は、さらにヘリカルアンテナ素子4aと中空筒状体4bと樹脂ジョイント部材2および係止突起3bの外面のほぼ全体を被覆する絶縁被覆部材4cを有している。絶縁被覆部材4cは、ABS等の樹脂で形成される。
【0007】
次に、図1のアンテナ装置の製造方法を図3に基づいて説明する。図3(a)、(b)、(c)、(d)および(e)は、図1のアンテナ装置の製造方法の工程を説明するための図である。
図3(a)に示すように、接続金具3の上端部にヘリカルアンテナ素子4aを取り付ける。この場合に、接続金具3の係止部3bの前記支持溝部にヘリカルアンテナ素子4aの下端輪状部を挿入して接続金具に固定する。次に、図3(b)に示すように、ヘリカルアンテナ素子4aを被覆するように金型5を配置し、この状態で金型5の内部に樹脂材料を充填して中空筒状体4bをヘリカルアンテナ素子4aと一体的に形成する。
次に、図3(c)に示すように、樹脂ジョイント部材2の上部2bを上にして一体的に形成されたヘリカルアンテナ素子4aおよび樹脂ジョイント部材2で中空筒状体4bおよび接続金具2の内部を挿通して樹脂ジョイント部材2の上部2bを接続金具2の上端部に支持させる。
次に、図3(d)に示すように、ヘリカルアンテナ素子4aと中空筒状体4bと樹脂ジョイント部材2および係止突起3bの外面のほぼ全体を被覆するように金型6を配置し、この状態で金型6の内部に樹脂材料を充填することにより、図3(e)に示すような絶縁被覆部材4cを形成する。
【0008】
次に、本発明の第2の実施の形態を図面に基づいて詳細に説明する。
図4は本発明の第2の実施の形態に係るアンテナ装置を示す断面図である。本発明の第2の実施の形態において本発明の第1の実施の形態と同じ構成要素には同じ参照符号が付されている。本発明の第2の実施の形態は、樹脂ジョイント部材2の構成の除けば本発明の第2の実施の形態と同じである。
図4に示すように、本発明の第2の実施の形態に係るアンテナ装置は、ホイップアンテナ部(第1のアンテナ部)1と、このホイップアンテナ部1の上端部に形成された樹脂ジョイント部材2と、この樹脂ジョイント部材2に取り付けられる接続金具3と、ホイップアンテナ部1に樹脂ジョイント部材2および接続金具3を介して取り付けられるヘリカルアンテナ部(第2のアンテナ部)4とを備えている。
樹脂ジョイント部材2は、保護被膜1bと連結され中空筒状体4bの内部に収容される棒状体2cと、この棒状体2cの上端部に外径がこの棒状体2cより大きいように形成され中空筒状体4bに支持される頂部2dとを有している。この頂部2dの下端外周部は、中空筒状体4bの上端部により支持されている。この場合には、接続金具3の係止突起3bは、中空筒状部4bの下端部のみを支持する。樹脂ジョイント部材2は、ナイロン等の樹脂で形成される。樹脂ジョイント部材2の棒状体2cには、下方へ開口された穴部が形成されている。樹脂ジョイント部材2の棒状体2cと保護被膜1bは、棒状体2cの前記穴部に保護被膜1bを圧入することにより連結されている。
本発明の第2の実施の形態に係るアンテナ装置は、本発明の第1の実施の形態に係るアンテナ装置と同じ製造方法により製造される。
【0009】
【発明の効果】
以上のように、請求項に記載の発明によれば、第1のアンテナ部と、この第1のアンテナ部の上端部に連結された樹脂ジョイント部材と、この樹脂ジョイント部材に取り付けられる接続金具と、前記第1のアンテナ部に前記樹脂ジョイント部材および前記接続金具を介して取り付けられる第2のアンテナ部とを備え、前記第1のアンテナ部は、第1のアンテナ素子と、この第1のアンテナ素子を被覆している保護被膜とを有し、前記第2のアンテナ部は、第2のアンテナ素子と、この第2のアンテナ素子が取り付けられ上下端が開口された中空筒状体とを有し、前記樹脂ジョイント部材は、前記保護被膜と連結され前記中空筒状体の内部に収容される棒状体と、この棒状体の上端部に外径がこの棒状体より大きいように形成され前記中空筒状体に支持される頂部とを有し、前記接続金具は、前記樹脂ジョイント部材の前記棒状体が挿通される接続筒状体と、この接続筒状体の上外周部に形成され前記中空筒状部の下端部を支持する係止突起とを有するから、製造が容易であり、かつ、前記接続金具が前記樹脂ジョイント部材から離脱するのを防止して前記第2のアンテナ部が前記第1のアンテナ部から離脱するのを防止することができる。
【図面の簡単な説明】
【図1】本発明の第1の実施の形態に係るアンテナ装置の一部を透視して示す一部切り欠き斜視図である。
【図2】図1のアンテナ装置を示す断面図である。
【図3】(a)〜(e)は、図1のアンテナ装置の製造方法の工程を説明するための図である。
【図4】本発明の第2の実施の形態に係るアンテナ装置を示す断面図である。
【図5】従来のアンテナ装置を示す断面図である。
【図6】従来のアンテナ装置の要部を拡大して示す拡大断面図である。
【符号の説明】
1 ホイップアンテナ部(第1のアンテナ部)、1a ホイップアンテナ素子(第1のアンテナ素子)、1b 保護被膜、2 樹脂ジョイント部材、2a 下部、2b 上部、2c 棒状体、2d 頂部、3 接続金具、3a 接続筒状体、3b 係止突起、4 ヘリカルアンテナ部(第2のアンテナ部)、4a ヘリカルアンテナ素子(第2のアンテナ素子)、4b 中空筒状体、4c 絶縁被覆部材。
[0001]
The present invention relates to an antenna device used for a portable wireless device and the like, and more particularly, to an antenna device that can be easily manufactured and can reduce the price.
[0002]
[Prior art]
In general, a popular mobile phone is provided with an antenna device for transmitting and receiving radio waves for calls. Generally, this antenna device is supported in a box of a mobile phone body so that it can be stored and pulled out for convenience of carrying. In this antenna device, when the entire antenna device is housed in the box of the mobile phone body, transmission / reception becomes poor. Therefore, by providing a helical antenna portion on the upper portion of the antenna device, the antenna device is mounted on the mobile phone body. The helical antenna unit is used in a state of protruding out of the box of the mobile phone body when stored in the box.
As such an antenna device, those shown in FIGS. 5 and 6 are conventionally known. As shown in FIGS. 5 and 6, the antenna device includes a first antenna portion 101 supported so as to be housed and pulled out from the radio main body, and a resin formed on an upper end portion of the first antenna portion 101. A joint member 102, a connection fitting 103 attached to the resin joint member 102, and a second antenna portion 104 attached to the first antenna portion 101 via the resin joint member 102 and the connection fitting 103 are provided.
The resin joint member 102 is formed in a substantially rod shape. A male screw is formed on the top of the resin joint member 102. On the other hand, the connection fitting 103 is formed of a cylindrical body having upper and lower ends opened. An internal thread is formed on the inner periphery of the connection fitting 103. The resin joint member 102 and the connection fitting 103 are connected (coupled) by inserting the resin joint member 102 into the connection fitting 103 and screwing the male screw of the resin joint member 102 into the female screw of the connection fitting 103.
[0003]
[Problems to be solved by the invention]
However, in the conventional antenna device, it is necessary to form a male screw on the resin joint member 102, a female screw on the connection fitting 103, and screw the male screw of the resin joint member 102 onto the female screw of the connection fitting 103. There is a problem that is difficult.
An object of the present invention is to solve such problems, and provide an antenna device that is easy to manufacture and that can prevent the second antenna portion from being detached from the first antenna portion. There is to do.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 is connected to a first antenna portion supported so as to be housed and withdrawable in a radio main body, and an upper end portion of the first antenna portion. The first antenna includes: a resin joint member; a connection fitting attached to the resin joint member; and a second antenna portion attached to the first antenna portion via the resin joint member and the connection fitting. The portion has a first antenna element and a protective film covering the first antenna element, and the second antenna portion includes a second antenna element and the second antenna element. A hollow cylindrical body attached to the upper and lower ends, and the resin joint member is connected to the protective coating and accommodated in the hollow cylindrical body; A connecting tubular body into which the rod-shaped body of the resin joint member is inserted. And a locking projection formed on the upper and outer peripheral portions of the connecting tubular body and supporting a lower end portion of the hollow tubular portion, and the second antenna portion further includes the second antenna element and the It has an insulation coating member which coat | covers the hollow cylinder, the said top part of the said resin joint member, and the substantially whole outer surface of the said latching protrusion.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a partially cutaway perspective view showing a part of the antenna device according to the first embodiment of the present invention as seen through. FIG. 2 is a cross-sectional view showing the antenna device of FIG.
As shown in FIG. 1 and FIG. 2, this antenna device includes a whip antenna portion (first antenna portion) 1, a resin joint member 2 connected to the upper end portion of the whip antenna portion 1, and the resin joint member. 2 and a helical antenna portion (second antenna portion) 4 attached to the whip antenna portion 1 via the resin joint member 2 and the connection fitting 3.
The whip antenna unit 1 includes a whip antenna element (first antenna element) 1a and a protective film 1b covering the whip antenna element 1a. The whip antenna element 1a is a bowl-shaped antenna element formed of a conductor such as an alloy of nickel and titanium. The protective coating 1b is formed of a resin such as polybutylene terephthalator (PBT). Whip antenna unit 1 is supported in a radio main body (not shown) so that it can be stored and pulled out.
[0006]
The helical antenna unit 4 includes a helical antenna element (second antenna element) 4a and a hollow cylindrical body 4b to which the helical antenna element 4a is attached and whose upper and lower ends are opened. The helical antenna element 4a is made of a coil conductor and is embedded in the side wall of the hollow cylindrical body 4b. The hollow cylindrical body 4b is formed of a resin such as ABS. The helical antenna element 4a is formed integrally with the hollow cylindrical body 4b so as to be embedded in the side wall of the hollow cylindrical body 4b.
The resin joint member 2 includes a lower part 2a connected to the protective coating 1b of the whip antenna part 1, and an upper part 2b accommodated inside the hollow cylindrical body 4b and formed integrally with the lower part 2a and having an outer diameter larger than the lower part 2a. And have. The lower end surface of the upper part 2b is formed so as to be substantially perpendicular to the side surface of the lower part 2a. The resin joint member 2 is formed of a resin such as nylon. In the lower portion 2a of the resin joint member 2, a hole portion opened downward is formed. The lower part 2a of the resin joint member 2 and the protective film 1b are connected by press-fitting the protective film 1b into the hole of the lower part 2a.
The connection fitting 3 has a connection cylindrical body 3a and a locking projection 3b formed on the upper and outer peripheral portion of the connection cylindrical body 3a. The connecting cylindrical body 3a is opened at the upper and lower ends, and the lower part 2b of the resin joint member 2 is inserted into the connecting cylindrical body 3a. The locking projection 3b supports the lower end portion of the upper portion 2b and the lower end portion of the hollow cylindrical portion 4b of the resin joint member 2 through which the lower portion 2a is inserted through the connection cylindrical body 3a. A ring-shaped support groove (not shown) is formed on the upper surface of the locking protrusion 3b. The helical antenna element 4a is supported in a state of being fixed (connected) to the connection fitting 3 by inserting the lower end annular portion of the helical antenna element 4a into the annular support groove on the upper surface of the locking projection 3b, and Also electrically connected. The connection fitting 3 is made of a metal material such as aluminum.
The helical antenna portion 4 further includes an insulating covering member 4c that covers substantially the entire outer surface of the helical antenna element 4a, the hollow cylindrical body 4b, the resin joint member 2, and the locking projection 3b. The insulating covering member 4c is formed of a resin such as ABS.
[0007]
Next, a method for manufacturing the antenna device of FIG. 1 will be described with reference to FIG. FIGS. 3A, 3B, 3C, 3D and 3E are diagrams for explaining the steps of the method for manufacturing the antenna device of FIG.
As shown in FIG. 3A, the helical antenna element 4 a is attached to the upper end portion of the connection fitting 3. In this case, the lower end ring-shaped portion of the helical antenna element 4a is inserted into the support groove portion of the locking portion 3b of the connection fitting 3 and fixed to the connection fitting. Next, as shown in FIG. 3B, the mold 5 is disposed so as to cover the helical antenna element 4a, and in this state, the mold 5 is filled with a resin material to form the hollow cylindrical body 4b. It is formed integrally with the helical antenna element 4a.
Next, as shown in FIG. 3C, the hollow cylindrical body 4 b and the connection fitting 2 are integrally formed by the helical antenna element 4 a and the resin joint member 2 that are integrally formed with the upper portion 2 b of the resin joint member 2 facing upward. The upper portion 2 b of the resin joint member 2 is supported by the upper end portion of the connection fitting 2 through the inside.
Next, as shown in FIG. 3 (d), the mold 6 is arranged so as to cover almost the entire outer surface of the helical antenna element 4a, the hollow cylindrical body 4b, the resin joint member 2 and the locking projection 3b, In this state, the resin material is filled into the mold 6 to form an insulating coating member 4c as shown in FIG.
[0008]
Next, a second embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 4 is a cross-sectional view showing an antenna apparatus according to the second embodiment of the present invention. In the second embodiment of the present invention, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals. The second embodiment of the present invention is the same as the second embodiment of the present invention except for the configuration of the resin joint member 2.
As shown in FIG. 4, the antenna device according to the second embodiment of the present invention includes a whip antenna portion (first antenna portion) 1 and a resin joint member formed on the upper end portion of the whip antenna portion 1. 2, a connection fitting 3 attached to the resin joint member 2, and a helical antenna portion (second antenna portion) 4 attached to the whip antenna portion 1 via the resin joint member 2 and the connection fitting 3. .
The resin joint member 2 is connected to the protective coating 1b and accommodated in the hollow cylindrical body 4b. The resin joint member 2 is hollow and formed at the upper end of the rod-shaped body 2c so that the outer diameter is larger than that of the rod-shaped body 2c. And a top portion 2d supported by the cylindrical body 4b. The lower end outer peripheral portion of the top portion 2d is supported by the upper end portion of the hollow cylindrical body 4b. In this case, the locking protrusion 3b of the connection fitting 3 supports only the lower end portion of the hollow cylindrical portion 4b. The resin joint member 2 is formed of a resin such as nylon. The rod-shaped body 2c of the resin joint member 2 is formed with a hole portion opened downward. The rod-shaped body 2c of the resin joint member 2 and the protective film 1b are connected by press-fitting the protective film 1b into the hole of the rod-shaped body 2c.
The antenna device according to the second embodiment of the present invention is manufactured by the same manufacturing method as the antenna device according to the first embodiment of the present invention.
[0009]
【The invention's effect】
As described above, according to the invention described in claim 1, the first antenna portion, the first resin joint member connected to the upper end portion of the antenna portion, fitting attached to the resin joint member And a second antenna part attached to the first antenna part via the resin joint member and the connection fitting, wherein the first antenna part includes a first antenna element and the first antenna element. A protective coating covering the antenna element, and the second antenna portion includes a second antenna element and a hollow cylindrical body to which the second antenna element is attached and whose upper and lower ends are opened. The resin joint member is connected to the protective coating and accommodated in the hollow cylindrical body, and has an outer diameter larger than the rod-shaped body at the upper end of the rod-shaped body. Hollow tube And the connection fitting is formed in a connection cylindrical body through which the rod-shaped body of the resin joint member is inserted, and the hollow cylindrical shape formed on an upper outer peripheral portion of the connection cylindrical body. And the second antenna portion is easy to manufacture and prevents the connection fitting from being detached from the resin joint member. It is possible to prevent detachment from the antenna portion.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view showing a part of an antenna device according to a first embodiment of the present invention as seen through.
2 is a cross-sectional view showing the antenna device of FIG. 1. FIG.
FIGS. 3A to 3E are views for explaining a process of the method for manufacturing the antenna device of FIG. 1;
FIG. 4 is a cross-sectional view showing an antenna device according to a second embodiment of the present invention.
FIG. 5 is a cross-sectional view showing a conventional antenna device.
FIG. 6 is an enlarged cross-sectional view showing a main part of a conventional antenna device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Whip antenna part (1st antenna part), 1a Whip antenna element (1st antenna element), 1b Protective coating, 2 Resin joint member, 2a Lower part, 2b Upper part, 2c Rod-shaped body, 2d Top part, 3 Connection metal fittings, 3a Connection cylindrical body, 3b Locking protrusion, 4 Helical antenna part (second antenna part), 4a Helical antenna element (second antenna element), 4b Hollow cylindrical body, 4c Insulation covering member.

Claims (1)

無線機本体に収納および引き出し可能に支持されている第1のアンテナ部と、この第1のアンテナ部の上端部に連結された樹脂ジョイント部材と、この樹脂ジョイント部材に取り付けられる接続金具と、前記第1のアンテナ部に前記樹脂ジョイント部材および前記接続金具を介して取り付けられる第2のアンテナ部とを備え、前記第1のアンテナ部は、第1のアンテナ素子と、この第1のアンテナ素子を被覆している保護被膜とを有し、前記第2のアンテナ部は、第2のアンテナ素子と、この第2のアンテナ素子が取り付けられ上下端が開口された中空筒状体とを有し、前記樹脂ジョイント部材は、前記保護被膜と連結され前記中空筒状体の内部に収容される棒状体と、この棒状体の上端部に外径がこの棒状体より大きいように形成され前記中空筒状体に支持される頂部とを有し、前記接続金具は、前記樹脂ジョイント部材の前記棒状体が挿通される接続筒状体と、この接続筒状体の上外周部に形成され前記中空筒状部の下端部を支持する係止突起とを有し、前記第2のアンテナ部は、さらに前記第2のアンテナ素子と前記中空筒状体と前記樹脂ジョイント部材の前記頂部および前記係止突起の外面のほぼ全体を被覆する絶縁被覆部材を有することを特徴とするアンテナ装置。  A first antenna portion supported so as to be housed and pulled out in the radio main body, a resin joint member connected to an upper end portion of the first antenna portion, a connection fitting attached to the resin joint member, A second antenna portion attached to the first antenna portion via the resin joint member and the connection fitting, and the first antenna portion includes a first antenna element and the first antenna element. The second antenna portion has a second antenna element and a hollow cylindrical body to which the second antenna element is attached and whose upper and lower ends are open, The resin joint member is formed with a rod-shaped body connected to the protective coating and accommodated in the hollow cylindrical body, and an outer diameter larger than the rod-shaped body at an upper end portion of the rod-shaped body. The connection fitting is formed on a connection cylindrical body through which the rod-shaped body of the resin joint member is inserted, and an upper outer peripheral portion of the connection cylindrical body. A locking projection for supporting a lower end portion of the hollow cylindrical portion, and the second antenna portion further includes the second antenna element, the hollow cylindrical body, the top portion of the resin joint member, and the engagement. An antenna device comprising an insulating covering member that covers substantially the entire outer surface of the stop protrusion.
JP2001012187A 2001-01-19 2001-01-19 Antenna device Expired - Fee Related JP4646413B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001012187A JP4646413B2 (en) 2001-01-19 2001-01-19 Antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001012187A JP4646413B2 (en) 2001-01-19 2001-01-19 Antenna device

Publications (2)

Publication Number Publication Date
JP2002217624A JP2002217624A (en) 2002-08-02
JP4646413B2 true JP4646413B2 (en) 2011-03-09

Family

ID=18879234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001012187A Expired - Fee Related JP4646413B2 (en) 2001-01-19 2001-01-19 Antenna device

Country Status (1)

Country Link
JP (1) JP4646413B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4067438B2 (en) * 2003-04-02 2008-03-26 横浜ゴム株式会社 Tire communication system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0799404A (en) * 1993-09-28 1995-04-11 Nippon Antenna Co Ltd Antenna
JPH11220313A (en) * 1998-01-30 1999-08-10 Yokowo Co Ltd Portable radio unit antenna and its forming method
JPH11340717A (en) * 1998-05-28 1999-12-10 Anten Kk Antenna and its manufacture
JP2001057503A (en) * 1999-06-09 2001-02-27 Anten Kk Antenna system and its manufacture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0799404A (en) * 1993-09-28 1995-04-11 Nippon Antenna Co Ltd Antenna
JPH11220313A (en) * 1998-01-30 1999-08-10 Yokowo Co Ltd Portable radio unit antenna and its forming method
JPH11340717A (en) * 1998-05-28 1999-12-10 Anten Kk Antenna and its manufacture
JP2001057503A (en) * 1999-06-09 2001-02-27 Anten Kk Antenna system and its manufacture

Also Published As

Publication number Publication date
JP2002217624A (en) 2002-08-02

Similar Documents

Publication Publication Date Title
KR100232981B1 (en) Antenna for two frequency bands
FI99220C (en) Antenna, especially mobile phone antenna, and method of manufacturing the antenna
US20090137133A1 (en) F-type right angle jack
JPH03245603A (en) Antenna
EP1050932A3 (en) A shielding terminal and method for connecting a shielding terminal
JP4646413B2 (en) Antenna device
KR20040067864A (en) Multi-frequency antenna
JPH10242740A (en) Multi-resonance antenna
JPH08288722A (en) Radome that houses multiplex arm antenna element and its method
JP4153638B2 (en) Antenna device for portable radio
JP4152547B2 (en) Antenna device for portable radio
JPH11154820A (en) Small helical antenna
JP3179696B2 (en) Antenna device
US8773325B2 (en) Antenna device
EP0892457A1 (en) Antenna assembly comprising whip antenna and helical antenna contained in antenna top rotatably mounted on top end of the whip antenna
JPH0215372Y2 (en)
JP4629878B2 (en) Whip antenna
JP2001057503A (en) Antenna system and its manufacture
JPH11205017A (en) Antenna for portable radio equipment, production thereof and power feeding structure for the antenna
JPH10224132A (en) Separation type antenna and communication equipment
JP3897904B2 (en) Antenna for mobile devices
JPH11298228A (en) Antenna top for antenna for portable communication equipment
JPH11205019A (en) Whip antenna and its manufacture
JP3031913B1 (en) Helical antenna for communication equipment
JP3835197B2 (en) antenna

Legal Events

Date Code Title Description
RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7426

Effective date: 20010315

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20010315

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20071211

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20100521

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100528

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20100521

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100914

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101109

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101130

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101207

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131217

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4646413

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131217

Year of fee payment: 3

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313115

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131217

Year of fee payment: 3

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313115

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131217

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313115

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees