FIXED ARM ACTION STATE DISPLAY UNIT OF DEVICE REPLACING MECHANISM IN EXPOSURE PALLET PART IN SPACE STATION EXPERIMENTAL MODULE

摘要

PROBLEM TO BE SOLVED: To grasp an action state of a fixed arm in EVA-backing up from the back surface side of a device replacing mechanism installed on an exposure pallet.;SOLUTION: In the device replacing mechanism 6, a screw shaft 8 in a casing 7 is rotated by operation from the back surface side to move a nut 15, and movement of the nut 15 is converted though an arm part 16 and a toggle link mechanism 25 into opening/closing action of the fixed arm 30. An opening display lever 41 is pivotally attached to be rotatable inward and outward of the casing 7 at a close position to a base end part of either fixed arm 30 at an outer side part of the casing 7. The tip part side of the opening display lever 41 is energized by a torsion spring 50 provided on a pivotal attachment part to be pressed to the toggle link mechanism 25. Displacement of the toggle link mechanism 25 is detected as displacement of a rear end part of the opening display lever 41, thereby the action state of the fixed arm 30 is grasped.;COPYRIGHT: (C)2002,JPO