JPH0472713U

JPH0472713U -

Info

Publication number: JPH0472713U
Application number: JP11600990U
Authority: JP
Priority date: 1990-11-05
Filing date: 1990-11-05
Publication date: 1992-06-26

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案の垂直モードヘリカルアンテ
ナの一実施例の伸長状態の縦断面図であり、第２
図は、第１図の垂直モードヘリカルアンテナの収
縮状態の縦断面図であり、第３図は、第１図の垂
直モードヘリカルアンテナで用いる係合突起部材
と弾性付勢用バンドの外観斜視図である。１０……第１の円筒、１２……第２の円筒、１
６……アンテナエレメント、２２……係合突起部
材、２２ｂ……係合突起、２８……ストツパー金
具、２８ａ，３０ａ……周状凹部、３０……コネ
クタ。 FIG. 1 is a vertical cross-sectional view of one embodiment of the vertical mode helical antenna of the present invention in an extended state;
1 is a vertical cross-sectional view of the vertical mode helical antenna in a contracted state, and FIG. 3 is an external perspective view of an engaging protrusion member and an elastic biasing band used in the vertical mode helical antenna of FIG. 1. It is. 10...first cylinder, 12...second cylinder, 1
6... Antenna element, 22... Engaging protrusion member, 22b... Engaging protrusion, 28... Stopper fitting, 28a, 30a... Circumferential recess, 30... Connector.

Claims

【実用新案登録請求の範囲】１径の異なる複数の樹脂製の円筒を軸方向に摺
動自在に嵌合させるとともに、前記複数の円筒の
重なりが多い収縮状態と重なりの少ない伸長状態
の２状態を安定して保持するクリツクストツプ機
構を設け、前記円筒内に前記収縮状態と伸長状態
の変化に応じて伸縮する弾性を有するコイル状の
アンテナエレメントを収納して構成することを特
徴とした垂直モードヘリカルアンテナ。２径の異なる２つの円筒を軸方向に摺動自在に
嵌合させ、一方の円筒の摺接面の一端部に他方の
円筒に向けて弾性付勢される係合突起を設け、前
記他方の円筒の摺接面に前記収縮状態と伸長状態
で前記係合突起が係合する２つの周状凹部を設け
て、前記クリツクストツプ機構を形成することを
特徴とした請求項１記載の垂直モードヘリカルア
ンテナ。３携帯用セルラー電話機のアンテナとして用い
て、受信待機中は収縮状態とし、電話使用中は伸
長状態とすることを特徴とした請求項１記載の垂
直モードヘリカルアンテナ。[Claims for Utility Model Registration] 1. A plurality of resin cylinders having different diameters are slidably fitted in the axial direction, and the plurality of cylinders are in two states: a contracted state in which there is a lot of overlap, and an extended state in which there is little overlap. A vertical antenna element comprising a click stop mechanism for stably holding the antenna, and a coil-shaped antenna element having elasticity that expands and contracts in response to changes in the contracted state and the extended state stored in the cylinder. mode helical antenna. 2. Two cylinders with different diameters are slidably fitted in the axial direction, and an engaging protrusion that is elastically biased toward the other cylinder is provided at one end of the sliding surface of one cylinder, and 2. The vertical mode according to claim 1, wherein the click stop mechanism is formed by providing two circumferential recesses in the sliding surface of the cylinder, with which the engaging protrusion engages in the contracted state and the extended state. helical antenna. 3. The vertical mode helical antenna according to claim 1, wherein the vertical mode helical antenna is used as an antenna for a portable cellular telephone and is in a contracted state while waiting for reception and in an extended state while the telephone is in use.