AUTOMATIC RECOVERY MECHANISM UNIT

To provide an automatic recovery mechanism unit capable of easily applying an automatic recovery to a rotational device requiring the automatic recovery function at a low cost.SOLUTION: An automatic recovery mechanism unit 1 is mounted on a rotational axis of a rotational switch, and includes: upper and lower cases 80 and 10 which are mounted onto an upper part of the rotational axis of the rotational switch; a rotator 50 with a shaft, rotatably held in the upper and lower cases 80 and 10; and a coil spring 40 making the rotator 50 with the shaft automatically recover at a neutral position. At a lower end of the shaft 51, an engaged convex part (a shaft coupling part) 57 connecting one end of the rotational axis of the rotational switch is provided. The engaged convex part 57 is inserted into an engaged concave part provided onto an end surface of the rotational axis of the rotational switch and is coupled. A pair of contact members 31 for preventing a rotation of the lower case 10 in response to the rotational switch by being contacted and nipped to both outer peripheral side surfaces opposite to the rotational switch from a bottom surface of the lower case 10 is extended and provided.SELECTED DRAWING: Figure 5 【課題】自動復帰機能を必要とする回転機器に、容易且つ低コストに自動復帰機能を持たせることができる自動復帰機構ユニットを提供すること。【解決手段】回転式スイッチの回転軸上に装着される自動復帰機構ユニット１である。回転式スイッチの回転軸の上部に装着される上下ケース８０，１０と、上下ケース８０，１０内に回転自在に保持されるシャフト付き回転体５０と、シャフト付き回転体５０を中立位置に自動復帰させるコイルバネ４０とを有する。シャフト５１の下端に、回転式スイッチの回転軸の一端を連結する係合凸部（シャフト結合部）５７を設ける。係合凸部５７は、回転式スイッチの回転軸の端面に設けた係合凹部内に挿入され結合される。下ケース１０の底面から回転式スイッチの対向する両外周側面に当接・挟持して回転式スイッチに対する下ケース１０の回転を阻止する一対の当接部材３１を延出して設ける。【選択図】図５