| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening cutting out jig for cutting a wall member to simply provide an electric outlet attaching opening part. SOLUTION: The opening cutting jig is composed of the first plate-like member 34 attached to a wall member 10 in which the opening part 20 must be bored and the second plate-like member 36 mounted on a cutting tool 38 in a freely detachable manner. The first plate-like member has a depressed part 40, of which the inner peripheral surface has a shape sufficiently larger than the inner peripheral contour shape of the opening part and similar thereto, provided to one surface thereof at a required depth and the through-hole 42, which is concentrically provided inside the depressed part and of which the inner peripheral surface has a shape sufficiently larger than the inner peripheral contour shape of the opening part and similar thereto, provided thereto. The second plate-like member is equipped with an insertion port 54 for permitting the insertion of a cutting blade 52 at the time of mounting on the cutting tool and a circular member 56 protruded to one side concentrically with respect to the insertion port. After the circular member is allowed to face the depressed part, the cutting blade is driven while bringing the outer peripheral surface of the circular member into contact with the inner peripheral surface of the depressed part to move the same along the inner peripheral surface to cut out the opening part at the opening scheduled part of the wall member. COPYRIGHT: (C)2005,JPO&NCIPI
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