| 摘要 |
<p>The present invention provides a bidirectional driving wheel having the function of the automatic elastic repulsion of reverse rotation for protecting the safety of children, which ensures the smooth restoration of operation. The present invention relates to a driving wheel of a sunshade driving device having a manual driving module (410) operated by a ball chain or a rotating rope and driving the rotational axis of a sunshade, comprising: a manual pulley (415a) to be inserted in the ball chain or the rotating rope; and a bidirectional driving clutch (415b) rotating together with the manual pulley (415a) when rotating the manual pulley (415a) in one direction but rotating the manual pulley (415a) independently from the rotational axis of the sunshade when rotating autonomously in an opposite direction immediately after rotating together with the manual pulley (415a) in the one direction. The bidirectional driving clutch (415b) comprises an elastic member (415b4); a bidirectional driver (415b1) combined with the manual pulley (415a) and having either or both of the ends of the elastic member (415bs) connected thereto; a retainer (415b3) having one point of the elastic member (415b4) connected thereto, and rotating together with the manual pulley (415a) when rotating the manual pulley (415a) in one direction but rapidly rotating independently from the bidirectional driver (415b1) when rotating autonomously in an opposite direction immediately after rotating together with the manual pulley (415a) in the one direction.</p> |
