| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an epoch-making level in which an end part of the magnet exposed from a magnet exposing hole is always arranged at a desired position.SOLUTION: A punching part 6 for bubble tube deployment for mounting a bubble tube 3 for measurement is formed by press work for punching out a measurement reference surface 1 of a level substrate 2 as a positioning surface, and this punching part 6 for bubble tube deployment is used as a magnet mounting position reference part 7 serving as a reference of the magnetic mounting position, and a member 9 engaged with this magnet mounting position reference part 7 is provided with an engagement part 8 for mounting a magnet, and a magnet part 5 is engaged with the engaging part 8 for mounting the magnet. A height of the magnet mounting position reference part 7 for the measurement reference surface 1 is set in such a manner that the end part of the magnet part 5 exposed from the magnet exposing hole 4 is a desired position for an abutting surface 1.</p> |
