Patent ID: 8267451
Filing Date: 2012-09-18
Classification: B25J,G01N

Abstract:
1. A container gripper comprising a main frame containing movable supporting members, which are operative for moving gripper fingers between an open position and a closed position, and a finger displacement detecting sensor fixed to the main frame and positioned to be responsive to the instantaneous position of the gripper fingers, wherein said main frame houses a pneumatic piston for actuating a wedge which slidingly engages the movable supporting members for moving the gripper fingers by a cam-type connection between inclined walls of the supporting members and the interposed wedge, whereby the gripper fingers are moved in a synchronous way between an open position and a closed position, and a magnet fixed to one of the movable supporting members and positioned opposite to the finger displacement detecting sensor and movable in a bipolar head-on mode toward and away from the finger displacement detecting sensor, wherein the movement between the magnet and the finger displacement detecting sensor is in the same direction as that of the supporting member.