DRIVER DEVICE FOR MOVING BODY

PURPOSE:To automate movement of a passively moving pin to non-acting position by providing the moving body such as trolley traveling on a certain path with a passively moving pin, which is detained and released with/from a transmissive boss installed at an endless rotary element, and by furnishing a retraction control cam in a specified position on a certain path. CONSTITUTION:A pair of rails 12 for moving body, on the left and right are installed below a groove formed alongside a transport path on a floor board 3 in a treatment room. These rails 12 support and guide a trolley device 11 which is composed of a front trolley 13, a pair of load trolleys 14, 15 situated fore and aft, a rear trolley 16, and a support 19 for objects to be transported. The load trolley 14 is equipped with a passively moving pin 45, which is energized downward by a spring accommodated in a guide 46, and is detained and released with/from a transmissive boss 66 installed at a roller chain 64 of an intermittent drive device 72. This passively moving pin 45 is retracted up when a roller installed at it (not illustrated) is detained with a retraction control cam 110 installed at the starting and ending pars of an intermittent running path 60 and a continuously running path 61.