PURPOSE: To obtain a guiding and positioning device being applicable to many kinds of pipings and having a simple structure, by providing a circular rail devised to guide an inspecting mechanism, etc. along the outer peripheral surface of a cylindrical structural material to be subjected to an inspection or machining, and to fix the material at a prescribed position by a movable pawl and fixed pawls.
CONSTITUTION: A contactor 22 inspecting the inside corner 20, etc. of a nozzle 19 is fitted to a circular rail 24 and guided in the axial and circumferential directions of the outer peripheral surface of the nozzle 19 by a remote control board. One movable pawl and two fixed pawls 28 and 29 are fitted at three positions located symmetrically on the inner peripheral side of the circular rail 24, and the movable pawl 27 is connected with a ratchet to a handle 30, while the fixeds pawl 28 and 29 are rotated eccentrically around axes 31 which can be rotated by the operation of buttons 34, respectively. Accordingly, the circular rail 24 is fitted on the outer peripheral surface of the nozzle 19 and locked by the operation of a handle 26, the fixed pawls 28 and 29 are adjused to be set at appropriate positions of rotation so that the distance between the axes 31 and the outer peripheral surface of the nozzle 19 is made to correspond to the outside diameter of a nozzle 21, and the movable pawl 27 is extended in the direction of the diameter of the rail, whereby the circular rail 24 is clamped on the nozzle 19.
TAKAKU KAZUO
NARUSE AKISUKE
AKASU AKIRA
HITACHI ENG CO LTD
Next Patent: VESSEL FOR QUANTITATIVELY DETERMINED DISSOLVED OXYGEN RESIDUE