JPS5927605U - Clutch for electric telescopic antenna - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図及び第２図は従来の電動伸縮アンテナ用クラッチ
の構造を示すもので、第１図は平面図、第２図は一部断
面側面図、第３図〜第６図は本出願人の先の提案による
クラッチの構造を示すもので、第３図Ａは主動クラッチ
板の平面図、同図Ｂは同図ＡのＡ−Ａ線矢視断面図、第
４図Ａは従動クラッチ板の平面図、同図Ｂは同図ＡのＢ
−Ｂ線矢視断面図、第５図はクラッチ機構の構造を示す
断面図、第６図は第５図の断面平面図、第７図は本考案
の実施例であるクラッチの構造を示す断面平面図、第８
図は第７図の実施例における係合溝を説明する説明図、
第９図は本考案によるクラッチの他の実施例を示す平面
図である。 １１・・・主動クラッチ板、１２・・・従動クラッチ板
、１３・・・回転軸、１４・・・ドライブギア、１５・
・・出力ギア、１６・・・ピン、１７Ａ、１７Ｂ・・・
加圧部材、１８・・・コイルバネ。1 and 2 show the structure of a conventional electric telescopic antenna clutch, in which FIG. 1 is a plan view, FIG. 2 is a partially sectional side view, and FIGS. 3 to 6 are 3A is a plan view of the active clutch plate, FIG. The plan view of Figure B is B of Figure A.
5 is a sectional view showing the structure of the clutch mechanism, FIG. 6 is a sectional plan view of FIG. 5, and FIG. 7 is a sectional view showing the structure of the clutch according to the embodiment of the present invention. Plan, No. 8
The figure is an explanatory diagram illustrating the engagement groove in the embodiment shown in FIG.
FIG. 9 is a plan view showing another embodiment of the clutch according to the present invention. DESCRIPTION OF SYMBOLS 11... Main drive clutch plate, 12... Driven clutch plate, 13... Rotating shaft, 14... Drive gear, 15...
...Output gear, 16...Pin, 17A, 17B...
Pressure member, 18... coil spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 駆動源側に接続した主動クラッチ板と負荷側に接続した
従動クラッチ板のいずれか一方を樹脂製ドラム状ケース
とし、他方を前記ドラム状ケース内に回転自在に嵌合さ
れ中央部位に収納凹部を有する樹脂製円盤とし、前記ド
ラム状ケースの内周面にアンテナ素子の伸長方向に対し
て保合部の大なる第１の係合部と縮小方向に対して保合
部の小なる第２の保合部とを有する係部溝を設け、前記
円盤の収納凹部には、前記保合溝に係合する保合部材と
、この係合部材と前記ドラム状ケースの内周面との間に
圧力を付与する加圧部材と、これら両部材間に圧縮弾装
される弾性部材とを収納配設したことを特徴とする電動
伸縮アンテナ用クラッチ。One of the active clutch plate connected to the drive source side and the driven clutch plate connected to the load side is made of a resin drum-shaped case, and the other is rotatably fitted into the drum-shaped case and has a storage recess in the central part. The drum-shaped case has a first engagement part that is large in the direction of extension of the antenna element and a second engagement part that is small in the direction of contraction of the antenna element on the inner peripheral surface of the drum-shaped case. An engaging groove having a retaining portion is provided in the storage recess of the disc, and a retaining member that engages with the retaining groove, and a retaining member that is engaged with the retaining groove and an inner peripheral surface of the drum-shaped case between the engaging member and the inner peripheral surface of the drum-shaped case. A clutch for an electric telescopic antenna, characterized in that a pressure member that applies pressure and an elastic member that is compressively mounted between these members are housed and arranged.