| 摘要 |
PURPOSE:To facilitate measurement, by bringing a stationary measuring contactor in a fixed state and a movable contacter in motion, and inserting them inside a round hole for measuring the bore diameter with a dial gauge. CONSTITUTION:On both sides of a through-hole running horizontally inside a frame 12 bushes 13, 13' are press-fit and a movable piece 14 is fit free to move in LH and RH divections between the bushes 13, 13' and on the outside of the bush 13' located on one side, a dial gauge 15 is fixed by pressure and its movable contactor 15a is brought into contact elastically with the end surface of the piece 14. The dial gauge 15 is provided with dimension scale starting from 0 on its round disc and the dimension is displayed on the printed scale as the contactor 15a is pressed into it. Further, a movable measuring contactor 17 is suspended available for displacement in LH and RH direcitons with the movable piece 14 through a long groove 16 and astationary measuring contactor 19 can be fixed in any desired position in the long groove 16 through a blocking plate 18 with respect to the piee 17. |
