Abstract: The end effector forms part of the relocatable space station remote manipulator system. The end effector has grappling capabilities and latching capabilities and may include a force moment sensor which can cooperate with the arm in order to align the end effector with a grapple fixture without the aid of a grappling mechanism. The function of the end effector, when two are installed, one on each end of a symmetrical manipulator arm is to provide the capability to interchange the wrist and shoulder functions of the arm, thus enabling the manipulator to be self relocatable. The end effector combines the snare and rigidizing features of existing end effectors with new latching and umbilical electrical power and signal transfer features.

Abstract: The grapple fixture, with improved docking and engaging capabilities, is provided for use with, for example, a relocatable space station remote manipulator system. The grapple fixture is for use with an end effector having grappling capabilities and latching capabilities and which may include a force moment sensor which can cooperate with the arm in order to align the end effector with the grapple fixture without the aid of a grappling mechanism. The grapple fixture comprises a base, having a flange and a cylinder with an end effector abutment face, a plurality of end effector latching trunnions extending radially from the cylinder, a cone-shaped, grapple fixture aligning body with a cylindrical, end effector locating base portion attached to the abutment face, and a plurality of laterally extending, grapple fixture recess engaging, rounded shoulders spaced around the cylindrical base.