Patent ID: 7600324

Claim:
A level in which a mounting body provided with a bubble tube measuring portion in which a liquid and a bubble are sealed is disposed in a container case, the mounting body is fixed in a prescribed position that allows said bubble tube measuring portion to be viewed from a window hole provided to the container case, and the mounting body can micro-rotate in relation to the container case to correct a position of the bubble sealed in the bubble tube measuring portion, said level characterized in that: a shaft insertion hole that connects and conforms to a through-hole provided in said container case is disposed in said mounting body, the mounting body is disposed inside said container case, a shaft member is disposed completely via the through-hole of the container case, and the shaft member is insertably disposed in a shaft insertion hole of the mounting body, whereby the mounting body can perform microrotations about the shaft member in the container case; the mounting body is provided with an elastic pressure contact portion for making elastic pressure contact with an inner surface of one side of the container case, and a tightening and pressing contact portion for making pressing contact via an adjustment screw for pressing and making contact with the inner surface on an opposite side facing the container case, or via the tightening of an adjustment screw against the inner surface on the opposite side facing the container case; the adjustment screw is threadably disposed completely through the mounting body from the threaded portion disposed in the side surface of the mounting body inside the container case, and is configured so as to make pressing contact from a sloped direction against the inner surface of the container case, or is configured so as to press said tightening and pressing contact portion from a sloped direction against the inner surface of the container case; and the adjustment screw is threadably operated to vary the amount of elastic pressure of said elastic pressure contact portion by using the amount of threading of the adjustment screw, whereby the mounting body is fixed in the container case and the mounting body is adjusted by microrotation in relation to the container case so that the bubble position of the bubble tube measuring portion can be adjusted.