1270233 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於主要使用於PC卡型攜帶通訊裝置等的 電子機器的可動式天線以及具備該天線的電子機器。 【先前技術】 以往，在PC卡型攜帶通訊裝置或行動電話等的通訊 裝置，是設置有用來收發電波的天線（參照專利文獻！）， 作爲該天線，藉由使用如第1 〇圖所示的可動式天線，而 可以得到最適合電波收發或天線收容的位置（參照專利文 獻2)。 該可動式天線1，是具備有由：支承於天線支承部2 的導電性的縱軸3、相對於縱軸3，將其作爲中心軸而安 裝成可自由轉動的導電性的中間軸承配件4、以及與縱軸 3垂直相交配置支承於中間軸承配件4的橫軸5所構成的 萬能接頭，將天線支承部2保持於攜帶通訊裝置等的電子 機器，並且對於中間軸承配件4，將橫軸5作爲中心軸來 可自由轉動地安裝天線主體6，而可以配合電波的收發來 改變天線主體6的方向。 可是，構成這種萬能接頭的中間軸承配件4等的零件 要考慮強度或與各零件的電性連接而藉由導電性的金屬構 件來形成，中間軸承配件4與天線主體6的連結部分，是 處於讓金屬露出的狀態，在這裡如果有帶靜電的人體等放 出靜電的話，可能會導通到該可動式天線1而破壞電子機 (2) 1270233 器電路等。 因此’例如，如第Η圖所示，則是實施有藉由波紋 管等的絕緣材料所構成的覆蓋材料7來覆蓋天線的金屬部 露出的部分的防靜電處理。 [專利文獻11 日本特開2001— 339211號公報（第4圖） [專利文獻2] 日本特開平08 — 265025號公報（第〇〇〇2段落〜第 0009段落，第1〇圖、第11圖） 【發明內容】 [發明欲解決的課題] 可是，利用波形管等的絕緣性的覆蓋材料來覆蓋露出 於外部的金屬部分，而會有讓天線主體的體積變大且妨礙 了天線及安裝天線的電子機器的小型化的問題，也會有讓 天線及安裝天線的電子機器的外觀性變差這樣的問題。 本發明，鑒於這種先行技術的狀況，其目的要提供一 種外觀性佳，可對天線施加完全的防靜電處理，且可小型 化的可動式天線及具備該天線的電子機器。 [用以解決課題的手段] 爲了要解決如上述的傳統的問題來達成所需要的目的 -6 - (3) 1270233 的第1發明，是具備有由：支承於由絕緣材料所構成的天 線支承部的導電性的縱軸、相對於該縱軸，將其作爲中心 軸可自由轉動地安裝著的導電性的中間軸承配件、以及與 上述縱軸垂直相交地配置地支承於該中間軸承配件的橫軸 所構成的萬能接頭，對於上述中間軸承配件，將上述橫軸 作爲中心軸可自由轉動地安裝天線主體，經由上述萬能接 頭來使上述縱軸與天線主體導通的可動式天線，其特徵 爲：上述中間軸承配件，是一體地具有：平板狀的轉動基 盤部、與將該轉動基盤部的兩緣部分別朝向相同側立起的 一對橫軸支承片部且形成爲剖面U字型，是可自由轉動 地將該中間軸承配件的轉動基盤部之支承在上述縱軸的前 端，並且使上述橫軸貫穿上述兩橫軸支承片部來加以支 承，將由絕緣材料所構成的中間軸承配件用的絕緣座插入 到上述中間軸承配件的兩橫軸支承片部之間，藉由該絕緣 座來覆蓋除了中間軸承配件的底部及兩橫軸支承片部的相 對向面部的背面側之外的部分，在上述天線主體，是在基 端部側一體地具備有一對平行的軸承片部，使該軸承片部 接觸到上述中間軸承配件的兩橫軸支承片部的相對向面部 的背面側將上述橫軸作爲中心而可自由轉動地支承著，是 將具有絕緣材料而成型，且其中一端側開放的有底筒狀的 絕緣鞘構件覆蓋在該天線主體的外側，在該絕緣鞘構件的 開放端側具備有一對絕緣軸承片部，藉由上述橫軸來使該 絕緣軸承片部樞裝於中間軸承配件，藉由該絕緣軸承片部 來覆蓋上述天線主體軸承片部的相對向面部的背面側以及 (4) 1270233 上述中間軸承配件橫軸支承片部的兩相對向面部的背面 側。 藉由這種構造，則讓金屬部分不會露出於外部，可實 施較佳的防靜電處理，則可讓天線小型化，且外觀性較 佳。 第2發明，是針對第1發明，使上述縱軸的前端突出 於天線支承部的平坦表面加以固定，在該縱軸的前端形成 凸緣狀的防脫落頭部，並且在上述中間軸承配件的轉動基 盤部，形成從其一邊側到中央部分的U字型的凹陷部， 使該凹陷部嵌合到上述縱軸的頭部下，且藉由上述絕緣座 來防止嵌合於上述凹陷部的縱軸脫落。 藉由這種構造，則能容易對於縱軸進行中間軸承配件 的安裝，而可容易進行組裝，並且讓兼作爲絕緣材料的零 件的數量減少。 第3發明，是針對第2發明，縱軸前端的頭部，是藉 由在從天線支承部突出的部分的根部形成環狀凹溝所設置 的。 藉由這種構造，可適合地使中間軸承配件的轉動基盤 部支承於縱軸。 第4發明，是針對第1、2或3發明，在一體地設置 於天線主體的基端部側的兩軸承片部是使用導電性的彈簧 材料，是藉由該兩軸承片來彈性地挾持上述中間軸承配件 的兩橫軸支承片部外面側而具有導電接觸壓力與轉動摩擦 阻力。 (5) 1270233 藉由這種構造，當相對於中間軸承配件來使天線主體 轉動時，可以在任意的位置使天線主體停止轉動，而可以 適當地將天線主體電性地連接於中間軸承配件。 第5發明，是針對第1〜3或4發明，橫軸是藉由絕 緣材料形成，在其中一端側是具有凸緣狀的頭部，並且在 另一端側形成前端側較細的錐體部及在該錐體部的基端側 的防脫落用段部，在上述絕緣鞘構件的各絕緣軸承片部的 橫軸貫穿孔，是具備有讓上述橫軸的頭部嵌合的擴徑部及 防止脫落用的卡止段部。 藉由這種構造，則不會讓金屬部露出於外部，而可適 合地將天線主體樞支於中間軸承配件。 第6發明，一種電子機器，是具備有發明1〜5所記 載的可動式天線。 藉由這種構造，則不限於PC卡型攜帶通訊裝置或行 動電話等的攜帶通訊裝置，針對使用其他天線的所有的電 子機器，可以藉由實施了完全的防靜電處理的可動式天 線，來進行電波的收發。 【實施方式】 接下來，根據圖面來說明本發明的可動式天線的實施 方式。 第1圖是顯示可動式天線的使用狀態的一個例子，圖 號10是PC卡型攜帶通訊裝置等的電子機器，11是可動 式天線。 -9- (6) 1270233 可動式天線11，是具備有由：支承於絕緣材料所構 成的天線支承部1 2的導電性的縱軸1 3、相對於縱軸1 3， 將其作爲中心軸可自由轉動地安裝著的導電性的中間軸承 配件1 4、以及與縱軸1 3垂直相交配置地支承於中間軸承 配件1 4的橫軸1 5所構成的萬能接頭，將天線支承部j 2 保持於PC卡型攜帶通訊裝置等的電子機器1〇，並且相對 於中間軸承配件1 4，藉由將橫軸丨5作爲中心軸可自由轉 動地安裝天線主體1 6，而可以得到電波收發或天線收容 等的最適當的天線位置。 構成萬能接頭的橫軸1 5，是藉由絕緣材料所形成， 如第4圖所不，在其中一端側具備有凸緣狀的頭部17， 在另一端側形成有前端側較細的錐體部1 8與位於錐體部 的基端側的防止脫落的段部1 9。 中間軸承配件1 4，如第5圖所示，是形成剖面爲U 字型，且一體地具有：藉由具有導電性的金屬構件所形成 的平板狀的轉動基盤部20、以及從轉動基盤部2〇的兩側 緣朝相同側立起的橫軸支承片部2 1、2 1。 在該中間軸承配件1 4的兩橫軸支承片部2 1、2 1之 間，是插入有絕緣座2 2，藉此，來覆蓋除了轉動基盤部 2 〇的底面與兩橫軸支承片部2 1、2 1的外側面（兩橫軸支 承片部的相對向面部的背側面）之外的部分。 在轉動基盤部20，設置有··形成爲將中心圓孔朝向 其中一方側緣延長的形狀也就是從一側緣部到中央部分的 U字型的凹陷部23，藉由讓從天線支承部12突出的導電 •10- (7) 1270233 性的縱軸1 3嵌入到該凹陷部2 3，則可相對於天線支承部 12而可自由旋轉且不能防止脫落地支承轉動基盤部2〇。 在兩橫軸支承片部21、21，是形成有用來插通構成 萬能接頭的橫軸1 5的橫軸插通孔24。. 絕緣座22’是藉由絕緣材料所形成，是做成將圓盤 的外周面的局部予以缺口來形成底面的形狀。 在該圓盤狀的中心部分是貫穿開口有用來插通橫軸 15的插入孔26。 在該絕緣座2 2的兩側面，形成有用來嵌合中間軸承 配件14的橫軸支承片部21、21的支承片部嵌合用的凹部 25、25，在絕緣座22的底面，是形成有用來插入縱軸13 的前端部分的防脫落用孔部22a。 該中間軸承配件14，如第6圖所示，當將絕緣座22 插入到中間軸承配件1 4的兩橫軸支承片部2 1、2 1之間 時，該兩橫軸支承片部21、21會嵌入凹部25、25，藉由 絕緣座22來覆蓋除了轉動基盤部20的下面部及各橫軸支 承片部2 1、2 1的外側面（相對向面部的背側面）的部分。 當將絕緣座22插入到中間軸承配件1 4的兩橫軸支承 片部21、21之間時，會覆蓋轉動基盤部緣部，並且縱軸 1 3的前端部分被插入到防脫落用孔部22a，限制了旋轉基 盤部20相對於縱軸1 3的旋轉半徑方向的動作，而能防止 脫落。 該絕緣座22，在插入到中間軸承配件14的兩橫軸支 承片部2 1、2 1之間的狀態下，藉由將橫軸1 5貫穿橫軸支 -11 - (8) 1270233 承片部2 1、絕緣座22、橫軸支承片部2 1，而能防止相對 於中間軸承配件1 4的縱軸軸心方向的脫落。 天線主體1 6，如第8圖所示，是藉由導電性的彈簧 材料一體地形成：薄長板狀的主體部27、以及突出設置 於主體部27的端部兩側緣且互相相對向的一對平行軸承 片部28、28，藉由使該各軸承片部28、28的突端部之間 狹窄地形成，而可以將中間軸承配件1 4的兩橫軸支承片 部21、21的外側面彈性地挾持在兩軸承片部28、28之 間。而在該軸承片部28，形成有用來插通橫軸15的插通 孔29 〇 天線主體1 6，是在將中間軸承配件1 4的兩橫軸支承 片部21、21的外側面彈性地挾持在兩軸承片部28、28之 間的狀態，而將橫軸1 5作爲旋轉中心可自由轉動地支承 於中間軸承配件1 4，而能電性地對於中間軸承配件1 4進 行連接，並且讓軸承片部2 8可得到對於橫軸支承片部2 j 的外側面的較佳的導電接觸壓、與轉動摩擦阻力，藉此經 由萬能接頭而導通到縱軸1 3。 在該天線主體1 6的外側，如第7圖所示，是用由絕 緣材料所構成的一端側開放的有底筒狀的絕緣鞘構件3 〇 加以覆蓋，讓天線主體1 6不露出於外部。 在該絕緣鞘構件3 0的基端部，形成有互相相對向的 一對絕緣軸承片部3 1、3 1，在該絕緣軸承片部3 1、3 1的 中央部形成有用來樞支橫軸的橫軸貫穿孔32、32，在該 橫軸貫穿孔32，分別形成有與橫軸！ 5的頭部1 7互相嵌 -12- (9) 1270233 合的擴徑部33以及防脫落用的段部34。 而將絕緣鞘構件30覆蓋在天線主體16的話，是將天 線主體16的軸承片部28、28沿著絕緣軸承片部31的相 對向面部配置在絕緣軸承片部3 1、3 1的相對向面側。 天線支承部12 ’如第9圖所示，是藉由樹脂成形而 形成爲絕緣材料構成的長方體狀，是嵌入於PC卡型攜帶 通訊裝置10的安裝部分，保持於攜帶通訊裝置10。 在該天線支承部1 2，構成萬能接頭的導電性的縱軸 13，是突出於天線支承部的平坦的表面來加以固定，並且 內藏於攜帶通訊裝置10的電子電路所連接的連接用構件 3 5，是被固定成與縱軸1 3連接的狀態。 縱軸13’在前端形成有凸緣狀的防脫落頭部36，該 防脫落頭部36，在從縱軸13的天線支承部突出的部分的 根部，是形成有：轉動基盤部20的凹陷部23的寬度（也 就是中心的圓孔部的直徑）與圓環的直徑略相同直徑的環 狀凹溝槽3 7。 藉由將凹陷部23嵌入於該環狀凹溝槽3 7，讓轉動基 盤部20的凹陷部23周緣部抵接於防脫落頭部36下，則 將轉動基盤部2 0對於縱軸1 3，可自由旋轉且在軸心方向 不能防止脫落，且也電性地連接在一起。 該防脫落頭部36，當將縱軸13、中間軸承配件14、 及絕緣座2 2進行組裝時，會被插入到絕緣座2 2的底面所 形成的防脫落用孔部22a，而完成了旋轉基盤部20對於 縱軸13的縱軸13的旋轉半徑方向的防脫落處理。 -13· (10) Ϊ27〇233 作爲連接用構件3 5，是使用與連接到電子機器電路 的對象側互相連接導通的連接器等，藉由將天線支承部 12安裝在PC卡型攜帶通訊裝置10，讓該連接用構件35 與連接到電子機器電路的對象側導通。 圖中的圖號3 8，是由彈性材料所構成的Ο型環，藉 由該〇型環38來讓中間軸承配件14對於天線支承部12 的旋轉動作保有阻力，而可以在任意的位置停止旋轉。 在該可動式天線11，是藉由突出設置有縱軸13的天 線支承部12的平坦表面12a來覆蓋轉動基盤部的底面， 藉由覆蓋天線主體16的絕緣鞘構件30的絕緣軸承片部 31、31來覆蓋天線主體軸承片部28、28的兩外面側（兩 軸承片部相對向面部的背面側）以及中間軸承配件橫軸支 承片部2 1、2 1的兩外面側（兩相對向面部的背面側）。 也就是說，是藉由絕緣鞘構件3 0的絕緣軸承片部3 1 來覆蓋重疊互相導通的天線主體軸承片部28與中間軸承 配件橫軸支承片部2 1讓金屬部不露出於外部。 在該可動式天線11，沒有露出於外部的金屬部分， 完成了防靜電的處理。 在上述實施例中，雖然是針對將可動式天線適應於 PC卡型攜帶通訊裝置的例子來加以說明，而本發明的可 動式天線，以行動電話等的攜帶通訊裝置爲代表，可以適 用於使用天線的所有的電子機器。 [發明效果] •14- (11) 1270233 如上述，本發明的可動式天線，是藉由天線支承部的 平坦表面來覆蓋轉動基盤部的底面，橫軸支承片部的外側 面及天線主體的軸承片部，會在互相接觸的狀態下被絕緣 鞘構件的絕緣軸承片部覆蓋，所以金屬部分不會露出於外 部’外觀性較佳，且成爲完全的防靜電處理，且可讓天線 小型化。 在縱軸前端形成了凸緣狀的防脫落頭部，並且在上述 中間軸承配件的轉動基盤部，從其中一邊側到中央部分形 成了 U字型的凹陷部，使該凹陷部嵌合於上述縱軸的頭 部下，藉由上述絕緣座來防止嵌合於上述凹陷部的縱軸脫 落，則讓中間軸承配件對於縱軸的安裝容易進行，且能容 易進行組裝，並且讓兼作爲絕緣材料的零件的數量減少。 藉由讓縱軸前端的頭部，在從天線支承部突出的部分 的根部形成環狀凹溝槽，則可以將旋轉基盤部適合地支承 於縱軸，則不需要其他用來防止轉動基盤部脫落的零件， 而可小型化。 在一體地設置於天線主體的基端部側的兩軸承片部使 用了導電性的彈簧材料，藉由用該兩軸承片彈性地挾持上 述中間軸承配件的兩橫軸支承片部外面側，則當使天線主 體對於中間軸承配件轉動時，可以在任意的位置使天線主 體停止轉動，而可使天線主體相對於中間軸承配件適當地 進行電性連接。 橫軸是藉由絕緣材料所形成’在其中一端側具有凸緣 狀的頭部，並且在另一端側形成有：在前端側較細的錐體 -15- (12) 1270233 部與在該錐體部的基端側的防脫落用段部，藉由在上述絕 緣鞘構件的各絕緣軸承片部的橫軸貫穿孔，具備有讓上述 橫軸的頭部嵌合的擴徑部及防脫落用卡止段部，則不會使 金屬部露出於外部，且可使天線主體適當地樞支於中間軸 承配件。 【圖式簡單說明】 第1圖是顯示利用本發明的可動式天線的攜帶型通訊 裝置的立體圖。 第2圖（a)是顯示第1圖中的可動式天線的平面圖，（b) 是同圖的側面圖。 第3圖是同上圖的A — A線剖面圖。 第4圖是顯示第2圖中的橫軸的平面圖。 第5圖是顯示第2圖中的萬能接頭的分解立體圖。 第6圖（a)是顯示將絕緣座插入於中間軸承配件的狀 態的側面圖，（b)是同圖的縱剖面圖。 第7圖是顯示第2圖中的天線主體的覆蓋狀態的橫剖 面圖。 第8圖（a)是顯示同上圖的天線主體的平面圖，（b)是 同圖側面圖。 第9圖是顯示第2圖中的天線支承部的正面圖。 第1 0圖（a)是顯示傳統的可動式天線的一個例子的側 面圖，（b)是同圖的正面圖。 第11圖是顯示對同上圖的可動式天線實施防靜電處 •16- (13) (13)1270233 理的狀態的立體圖。 【圖號說明】 10 :電子機器（PC卡型攜帶通訊裝置） η :可動式天線 1 2 :天線支承部 13 :縱軸 1 4 :中間軸承配件 1 5 :橫軸 1 6 :天線主體 1 7 :頭部 1 8 :錐體部 1 9 :段部 20 :轉動基盤部 2 1 :橫軸支承片部 22 :絕緣座 22a :防脫落用孔部 2 3 :凹陷部 24 :橫軸插通孔 2 5 :凹部 2 6 :插通孔 27 :主體部 2 8 :軸承片部 29 :插通孔 -17- (14) 1270233 3 0 :絕緣鞘構件 3 1 :絕緣軸承片部 32 :橫軸貫穿孔 3 3 :擴徑部 34 :段部 3 5 :連接用構件 3 6 :防脫落用頭部 3 7 :環狀凹溝槽 38 : Ο型環 -18·1270233 (1) Technical Field of the Invention The present invention relates to a movable antenna mainly used for an electronic device such as a PC card type portable communication device, and an electronic device including the same. [Prior Art] Conventionally, a communication device such as a PC card type portable communication device or a mobile phone is provided with an antenna for transmitting and receiving radio waves (see Patent Document!), and the antenna is used as shown in Fig. 1 The movable antenna can be obtained at a position most suitable for radio wave transmission and reception or antenna accommodation (see Patent Document 2). The movable antenna 1 is provided with a conductive vertical shaft 3 supported by the antenna support portion 2, and a conductive intermediate bearing fitting 4 that is rotatably mounted as a central axis with respect to the vertical axis 3 And a universal joint formed by the horizontal shaft 5 supported by the intermediate bearing fitting 4 and perpendicularly intersecting the vertical axis 3, the antenna support portion 2 is held in an electronic device such as a communication device, and the intermediate bearing assembly 4 is provided with a horizontal axis. 5 The antenna main body 6 is rotatably mounted as a central axis, and the direction of the antenna main body 6 can be changed in accordance with transmission and reception of radio waves. However, the components of the intermediate bearing fitting 4 and the like constituting such a universal joint are formed by a conductive metal member in consideration of strength or electrical connection with each component, and the joint portion of the intermediate bearing fitting 4 and the antenna main body 6 is In a state where the metal is exposed, if static electricity is emitted from a human body with static electricity, the movable antenna 1 may be turned on to damage the electronic device (2) 1270233 circuit or the like. Therefore, for example, as shown in the figure, an antistatic treatment is performed to cover a portion where the metal portion of the antenna is exposed by the covering material 7 made of an insulating material such as a bellows. [Patent Document 11] JP-A-2001-339211 (Patent 4) [Patent Document 2] Japanese Laid-Open Patent Publication No. Hei 08-265025 (paragraph 2 to paragraph 0009, first drawing, and eleventh drawing) [Problem to be Solved by the Invention] However, the metal portion exposed to the outside is covered with an insulating covering material such as a corrugated tube, and the volume of the antenna main body is increased, which hinders the antenna and the antenna. The problem of miniaturization of the electronic device may also cause problems in the appearance of the antenna and the electronic device on which the antenna is mounted. SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances of such a prior art, and an object thereof is to provide a movable antenna which can provide a complete antistatic treatment to an antenna and which can be miniaturized and an electronic apparatus including the antenna. [Means for Solving the Problem] In order to solve the conventional problem as described above, the first object of the present invention is to provide a support for an antenna composed of an insulating material. a longitudinal axis of conductivity of the portion, a conductive intermediate bearing fitting rotatably attached to the vertical axis as a central axis, and a radially supported intermediate bearing fitting disposed perpendicularly to the longitudinal axis A universal joint formed by a horizontal axis, wherein the intermediate bearing assembly is provided with a movable antenna that rotatably mounts the antenna main body with the horizontal axis as a central axis, and the vertical axis and the antenna main body are electrically connected via the universal joint. The intermediate bearing fitting has a flat plate-shaped rotating base portion and a pair of horizontal shaft supporting piece portions that are raised toward the same side of the rotating base portion, and are formed in a U-shaped cross section. Supporting the rotating base portion of the intermediate bearing fitting to be rotatably supported at a front end of the longitudinal axis, and passing the horizontal shaft through the two horizontal shaft supporting pieces The portion is supported to insert an insulating seat for the intermediate bearing fitting made of an insulating material between the two lateral shaft supporting pieces of the intermediate bearing fitting, and the bottom of the intermediate bearing fitting is covered by the insulating seat and the two horizontal members are covered by the insulating seat. The antenna support body is integrally provided with a pair of parallel bearing pieces on the base end side in a portion other than the back surface side of the face supporting piece portion, and the bearing piece portion is in contact with the intermediate bearing fitting. The back surface side of the two lateral-axis supporting piece portions facing the front surface portion is rotatably supported by the horizontal axis as a center, and is covered with a bottomed cylindrical insulating sheath member which is molded with an insulating material and has one end side open. A pair of insulating bearing pieces are provided on an outer side of the antenna body at an open end side of the antenna body, and the insulating bearing piece is pivotally mounted to the intermediate bearing fitting by the horizontal axis, and the insulating bearing piece is Covering the back side of the facing portion of the antenna body bearing piece portion and (4) 1270233, the opposite faces of the intermediate bearing fitting horizontal shaft supporting piece portion The back side of the department. With this configuration, the metal portion is not exposed to the outside, and a preferable antistatic treatment can be performed, whereby the antenna can be miniaturized and the appearance can be improved. According to a second aspect of the invention, the front end of the vertical axis protrudes from a flat surface of the antenna support portion, and a flange-shaped fall-proof head is formed at a tip end of the vertical axis, and the intermediate bearing fitting is Rotating the base portion to form a U-shaped recessed portion from the one side to the central portion thereof, and fitting the recessed portion to the lower portion of the vertical axis, and preventing the fitting to the recessed portion by the insulating seat The longitudinal axis falls off. With this configuration, the intermediate bearing fitting can be easily mounted on the longitudinal axis, and assembly can be easily performed, and the number of parts serving as an insulating material can be reduced. According to a third aspect of the invention, in the second aspect of the invention, the head of the distal end of the vertical axis is provided by forming an annular groove at a root portion of a portion protruding from the antenna supporting portion. With this configuration, the rotating base portion of the intermediate bearing fitting can be suitably supported on the longitudinal axis. According to a fourth aspect of the invention, in the first, second or third invention, the two bearing pieces integrally provided on the base end portion side of the antenna main body are made of a conductive spring material, and are elastically held by the two bearing pieces. The two lateral shafts of the intermediate bearing fitting support the outer side of the sheet portion to have a conductive contact pressure and a rotational frictional resistance. (5) 1270233 With this configuration, when the antenna main body is rotated with respect to the intermediate bearing fitting, the antenna main body can be stopped at an arbitrary position, and the antenna main body can be appropriately electrically connected to the intermediate bearing fitting. According to a fifth aspect of the invention, in the first to third or fourth invention, the horizontal axis is formed of an insulating material, and the one end side has a flange-shaped head portion, and the other end side has a tapered portion at the front end side. And a portion for preventing the fall-off portion of the base end side of the tapered portion, wherein the horizontal shaft through hole of each of the insulating bearing pieces of the insulating sheath member is provided with an enlarged diameter portion for fitting the head of the horizontal axis And a locking portion for preventing falling off. With this configuration, the metal portion is not exposed to the outside, and the antenna body can be appropriately pivoted to the intermediate bearing fitting. According to a sixth aspect of the invention, there is provided an electronic device comprising the movable antenna described in Inventions 1 to 5. According to this configuration, it is not limited to a portable communication device such as a PC card type portable communication device or a mobile phone, and all electronic devices using other antennas can be operated by a movable antenna that has been completely antistatically treated. Radio waves are transmitted and received. [Embodiment] Next, an embodiment of a movable antenna of the present invention will be described based on the drawings. Fig. 1 is a view showing an example of the use state of the movable antenna, Fig. 10 is an electronic device such as a PC card type portable communication device, and 11 is a movable antenna. -9- (6) 1270233 The movable antenna 11 is provided with a longitudinal axis 13 of electrical conductivity supported by an antenna support portion 1 2 made of an insulating material, and a longitudinal axis 13 as a central axis. A conductive intermediate bearing fitting 14 that is rotatably mounted, and a universal joint that is supported by the horizontal shaft 15 of the intermediate bearing fitting 14 so as to be perpendicularly intersecting the longitudinal axis 13 and the antenna support portion j 2 The electronic device held by the PC card type portable communication device or the like is held, and the antenna main body 16 is rotatably attached to the intermediate bearing fitting 14 by using the horizontal axis 丨 5 as a central axis. The most appropriate antenna position for antenna accommodation. The horizontal axis 15 constituting the universal joint is formed of an insulating material. As shown in Fig. 4, a flange-shaped head portion 17 is provided on one end side, and a tapered tip portion is formed on the other end side. The body portion 18 and the segment portion 19 located on the proximal end side of the funnel portion are prevented from falling off. As shown in FIG. 5, the intermediate bearing fitting 14 has a U-shaped cross section and integrally includes a flat rotating base portion 20 formed of a conductive metal member, and a rotating base portion. The lateral shafts of the two sides of the two sides are erected toward the same side to support the sheet portions 2 1 and 2 1 . Between the two lateral shaft support pieces 2 1 and 2 1 of the intermediate bearing fitting 14 , an insulating seat 22 is inserted, thereby covering the bottom surface and the two lateral shaft supporting pieces except the rotating base portion 2 2 1 , 2 1 The outer side surface (the lateral axis of the two lateral shafts is opposite to the back side of the face). The rotating base portion 20 is provided with a U-shaped recessed portion 23 that is formed to extend the center circular hole toward one of the side edges, that is, from the one edge portion to the central portion, by allowing the antenna support portion 12 protruding electric conduction 10 - (7) 1270233 The vertical axis 13 is inserted into the recessed portion 23, so that the rotating base portion 2 can be rotatably supported with respect to the antenna supporting portion 12 and cannot be prevented from falling off. In the two horizontal shaft supporting pieces 21, 21, a horizontal shaft insertion hole 24 for inserting the horizontal shaft 15 constituting the universal joint is formed. The insulating seat 22' is formed of an insulating material and has a shape in which a part of the outer peripheral surface of the disk is notched to form a bottom surface. In the center portion of the disk shape, there is an insertion hole 26 through which the horizontal shaft 15 is inserted. Recessed portions 25 and 25 for fitting the support piece portions of the horizontal shaft support piece portions 21 and 21 of the intermediate bearing fitting 14 are formed on both side faces of the insulating seat 22, and are formed on the bottom surface of the insulating seat 22. The detachment preventing hole portion 22a of the distal end portion of the vertical shaft 13 is inserted. The intermediate bearing fitting 14 is as shown in Fig. 6, when the insulating seat 22 is inserted between the two lateral shaft supporting pieces 2 1 and 2 1 of the intermediate bearing fitting 14 , the two horizontal shaft supporting the sheet portion 21 , The recesses 25 and 25 are fitted into the concave portions 25 and 25, and the lower surface of the rotating base portion 20 and the outer surface of each of the horizontal shaft supporting piece portions 2 1 and 2 1 (relative to the back side surface of the face portion) are covered by the insulating seat 22. When the insulating seat 22 is inserted between the two lateral shaft supporting pieces 21, 21 of the intermediate bearing fitting 14, the rotating base portion edge portion is covered, and the front end portion of the vertical axis 13 is inserted into the falling prevention hole portion. 22a restricts the movement of the rotating base portion 20 in the direction of the radius of rotation of the vertical axis 13 to prevent falling off. The insulating seat 22 is inserted into the horizontal shaft supporting piece portions 2 1 and 2 1 of the intermediate bearing fitting 14 by the horizontal axis 15 through the horizontal axis branch -11 - (8) 1270233 The portion 21, the insulating seat 22, and the horizontal shaft support piece portion 2, can be prevented from falling off in the axial direction of the longitudinal axis of the intermediate bearing fitting 14. As shown in Fig. 8, the antenna main body 16 is integrally formed of a conductive spring material: a main body portion 27 having a thin long plate shape, and two end edges projecting from the end portion of the main body portion 27 and facing each other The pair of parallel bearing piece portions 28, 28 can be formed by narrowly forming the protruding end portions of the respective bearing piece portions 28, 28, so that the two horizontal shafts of the intermediate bearing fitting 14 can support the sheet portions 21, 21 The outer side surface is elastically held between the two bearing pieces 28, 28. On the bearing piece portion 28, an insertion hole 29 for inserting the horizontal shaft 15 is formed. The antenna main body 16 is elastically elastic on the outer side surfaces of the two lateral shaft support pieces 21, 21 of the intermediate bearing fitting 14. Holding the state between the two bearing pieces 28, 28, the horizontal axis 15 is rotatably supported by the intermediate bearing fitting 14 as a center of rotation, and the intermediate bearing fitting 14 can be electrically connected, and The bearing piece portion 28 can obtain a preferable conductive contact pressure and rotational frictional resistance with respect to the outer side surface of the horizontal shaft support piece portion 2j, thereby being conducted to the vertical axis 13 via the universal joint. As shown in Fig. 7, the outer side of the antenna main body 16 is covered with a bottomed cylindrical insulating sheath member 3 开放 which is open on one end side made of an insulating material, so that the antenna main body 16 is not exposed to the outside. . A pair of insulating bearing pieces 3 1 and 3 1 opposed to each other are formed at a proximal end portion of the insulating sheath member 30, and a central portion of the insulating bearing piece portions 31, 31 is formed to pivot The horizontal axis of the shaft penetrates the holes 32 and 32, and the horizontal axis through hole 32 is formed with the horizontal axis! The head portions 1 of 5 are fitted with the enlarged diameter portion 33 of the -12-(9) 1270233 and the segment portion 34 for preventing the fall-off. When the insulating sheath member 30 is covered by the antenna main body 16, the bearing pieces 28 and 28 of the antenna main body 16 are disposed along the opposing faces of the insulating bearing piece portion 31 in the opposing direction of the insulating bearing piece portions 31 and 31. Face side. As shown in Fig. 9, the antenna supporting portion 12' is formed in a rectangular parallelepiped shape formed of an insulating material by resin molding, and is embedded in the mounting portion of the PC card type portable communication device 10, and is held by the portable communication device 10. In the antenna support portion 12, the conductive vertical axis 13 constituting the universal joint is fixed on a flat surface of the antenna support portion, and is connected to a connecting member connected to an electronic circuit carrying the communication device 10. 3 5 is a state in which it is fixed to be connected to the vertical axis 13 . The vertical axis 13' is formed with a flange-shaped fall-off preventing head 36 at the tip end, and the fall-preventing head portion 36 is formed with a recess of the rotating base portion 20 at a root portion of a portion protruding from the antenna supporting portion of the vertical axis 13. The width of the portion 23 (that is, the diameter of the central circular hole portion) is an annular concave groove 37 having a diameter substantially the same as the diameter of the ring. By inserting the recessed portion 23 in the annular recessed groove 3, the peripheral portion of the recessed portion 23 of the rotating base portion 20 abuts against the fall-preventing head portion 36, the rotating base portion 20 is aligned with respect to the longitudinal axis 13 , can rotate freely and can not prevent falling off in the axial direction, and is also electrically connected together. When the vertical shaft 13, the intermediate bearing fitting 14, and the insulating seat 22 are assembled, the fall prevention head portion 36 is inserted into the hole preventing hole portion 22a formed on the bottom surface of the insulating seat 22, and the completion is completed. The rotating base portion 20 is prevented from falling off in the radial direction of the longitudinal axis 13 of the vertical axis 13. -13· (10) Ϊ27〇233 As the connection member 35, a connector or the like connected to the target side connected to the electronic device circuit is used, and the antenna support unit 12 is mounted on the PC card type portable communication device. 10. The connecting member 35 is electrically connected to the object side connected to the electronic device circuit. In the figure, reference numeral 38 is a Ο-shaped ring made of an elastic material, and the cymbal ring 38 allows the intermediate bearing fitting 14 to have a resistance to the rotation of the antenna supporting portion 12, and can be stopped at any position. Rotate. In the movable antenna 11, the bottom surface of the rotating base portion is covered by the flat surface 12a of the antenna supporting portion 12 on which the vertical shaft 13 is protruded, and the insulating bearing piece portion 31 covering the insulating sheath member 30 of the antenna main body 16 is covered. 31, covering both outer side sides of the antenna main bearing pieces 28, 28 (the back side of the two bearing pieces facing the face) and the outer faces of the intermediate bearing fittings lateral shaft supporting pieces 2 1 and 2 1 (two opposite directions) The back side of the face). In other words, the antenna main bearing piece portion 28 and the intermediate bearing fitting horizontal shaft supporting piece portion 21 are overlapped by the insulating bearing piece portion 31 of the insulating sheath member 30 so that the metal portion is not exposed to the outside. In the movable antenna 11, the metal portion exposed to the outside is not formed, and the antistatic treatment is completed. In the above embodiment, the movable antenna is adapted to the PC card type portable communication device, and the movable antenna of the present invention is represented by a portable communication device such as a mobile phone, and can be applied to use. All the electronic machines of the antenna. [Effect of the Invention] 14-(11) 1270233 As described above, the movable antenna of the present invention covers the bottom surface of the rotating base portion by the flat surface of the antenna supporting portion, and the lateral side supports the outer surface of the sheet portion and the antenna main body. The bearing piece portion is covered by the insulating bearing piece portion of the insulating sheath member in a state of being in contact with each other, so that the metal portion is not exposed to the outside. The appearance is better, and the antistatic treatment is completely completed, and the antenna can be miniaturized. . A flange-shaped fall-off preventing head is formed at a front end of the vertical shaft, and a U-shaped recessed portion is formed from one side to a central portion of the rotating base portion of the intermediate bearing fitting, and the recessed portion is fitted to the above Under the head of the vertical axis, the vertical seat of the recessed portion is prevented from falling off by the insulating seat, so that the intermediate bearing fitting can be easily attached to the vertical axis, and the assembly can be easily performed and used as an insulating material. The number of parts is reduced. By forming the annular concave groove at the root of the portion protruding from the antenna supporting portion by the head of the tip end of the vertical axis, the rotating base portion can be suitably supported on the vertical axis, and no other need for preventing the rotating base portion Parts that fall off can be miniaturized. A conductive spring material is used for the two bearing piece portions integrally provided on the base end portion side of the antenna main body, and the outer surface sides of the two lateral shaft support piece portions of the intermediate bearing fitting are elastically held by the two bearing pieces. When the antenna main body is rotated with respect to the intermediate bearing fitting, the antenna main body can be stopped at any position, and the antenna main body can be appropriately electrically connected with respect to the intermediate bearing fitting. The horizontal axis is formed by an insulating material, and has a flange-shaped head on one end side thereof, and is formed on the other end side: a tapered cone -15-(12) 1270233 portion on the front end side and the cone An anti-drop portion for the base end side of the body portion is provided with a diameter-enlarged portion for fitting the head portion of the horizontal shaft and a falling-proof portion of the insulating shaft portion of the insulating sheath member. When the locking portion is used, the metal portion is not exposed to the outside, and the antenna main body can be appropriately pivotally supported by the intermediate bearing fitting. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a portable communication device using a movable antenna of the present invention. Fig. 2(a) is a plan view showing the movable antenna in Fig. 1, and Fig. 2(b) is a side view showing the same figure. Figure 3 is a cross-sectional view taken along line A - A of the above figure. Fig. 4 is a plan view showing the horizontal axis in Fig. 2. Fig. 5 is an exploded perspective view showing the universal joint in Fig. 2. Fig. 6(a) is a side view showing a state in which an insulating seat is inserted into an intermediate bearing fitting, and Fig. 6(b) is a longitudinal sectional view of the same drawing. Fig. 7 is a cross-sectional view showing a state in which the antenna main body in Fig. 2 is covered. Fig. 8(a) is a plan view showing the antenna main body of the same figure, and Fig. 8(b) is a side view of the same drawing. Fig. 9 is a front elevational view showing the antenna supporting portion in Fig. 2; Fig. 10(a) is a side view showing an example of a conventional movable antenna, and (b) is a front view of the same figure. Fig. 11 is a perspective view showing a state in which the antistatic portion of the movable antenna of the same figure is subjected to the anti-static position • 16-(13) (13) 1270233. [Description of the number] 10: Electronic device (PC card type portable communication device) η: movable antenna 1 2 : antenna support portion 13 : vertical axis 1 4 : intermediate bearing fitting 1 5 : horizontal axis 1 6 : antenna main body 1 7 : Head 1 8 : Cone portion 1 9 : Segment 20 : Rotation base portion 2 1 : Horizontal shaft support piece 22 : Insulation seat 22 a : Anti-drop hole portion 2 3 : Depression portion 24 : Horizontal axis insertion hole 2 5 : recessed portion 2 6 : insertion hole 27 : main body portion 2 8 : bearing piece portion 29 : insertion hole -17 - (14) 1270233 3 0 : insulating sheath member 3 1 : insulating bearing piece portion 32 : horizontal axis through Hole 3 3 : enlarged diameter portion 34 : segment portion 3 5 : connecting member 3 6 : head for preventing falling off 3 7 : annular concave groove 38 : Ο type ring -18 ·