| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a construction machine in which vibration of a vibrator for compacting a pavement material can be accurately managed and which can maintain quality of a pavement.SOLUTION: The construction machine includes a vibrator 30 that compacts a pavement material, a proximity sensor 50 that is provided in the vibrator 30, and a tachometer 60 that indicates the number of revolutions of an output shaft 31a of a drive motor 31 of the vibrator 30. The proximity sensor 50 detects a part to be detected which rotates so as to operatively link to the output shaft 31a, within a case 31c of the drive motor 31. The tachometer 60 has number-of-revolutions calculation means 61 for converting a detection signal, which is output from the proximity sensor 50, to the number of revolutions of the output shaft 31a.</p> |
