| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bend pipe measurement jig that has a simple structure, is convenient to use and can accurately measure the pipe core length of a bend pipe. <P>SOLUTION: A bend pipe measurement jig 10 for measuring the pipe core length of the bend pipe comprises a first block B1 that can be mounted on a surface of the bend pipe. An undersurface 2 of the first block is provided with a groove part 3 that is recessed in a shape of inverted V. An upper surface 4 of the first block is provided with: a level gauge 5 for determining whether or not the upper surface of the first block in a direction perpendicular to a groove pattern direction of the groove part is in a level state; and a reference part 6 for installing a measurement jig for pipe core length at a position opposite to a groove pattern position of the groove part. The jig 10 also comprises: a second block B2 that is constituted in the same manner as the first block provided with the groove part, the level gauge and the reference part; and guide members 7a and 7b that hold at least one of the first block and the second block in a movable manner so that the groove pattern directions of the groove parts in the first and second blocks move on the same shaft center. <P>COPYRIGHT: (C)2013,JPO&INPIT |
