A kind of transmission mechanism that hand is automatic care bed has first actuated element by motor driving,And have at least one second actuated element connection what thereon and by its related driving,Each second actuated element is respectively equipped with a manual driving element and is connected to the lifting arrangement of each nursing bed； Wherein each second actuated element is equipped with a clutch,Its first clutch part is driven by the first actuated element and is rotated,And be equipped with a bearing and formed and dallied with the second actuated element,And the second clutch part then the second actuated element of clip what in its rotation direction of what,And what and the first clutch part control the transmission between the first actuated element and the second actuated element when connecting or disconnecting,Switching is used to drive automatically with motor or operate manual driving element directly effortlessly to drive the nursing bed head of a bed to rise.一種手自動護理床之傳動機構具有一受馬達驅動之第一傳動元件，且有至少一個第二傳動元件連接於其上而受其連帶驅動，各第二傳動元件分別設有一手動驅動元件且連接至各護理床之揚升機構；其中各第二傳動元件設有一離合器，其第一離合部受第一傳動元件傳動轉動，且設有一軸承而與第二傳動元件形成空轉，而第二離合部則於其轉動方向上卡掣於第二傳動元件，而於與第一離合部連接或斷開時控制第一傳動元件與第二傳動元件間的傳動，藉以切換以馬達自動驅動或直接操作手動驅動元件以省力地驅動護理床床頭揚升。
