| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to recognize the schedule of each work at a glance and to vidually recognize time difference from originally planned work when practical work is advanced or delayed from its schedule. SOLUTION: The diameters of a 1st circular members 3, a 2nd circular member 4 and a 3rd circular member 5, in that order are successively reduced and these members 3 to 5 are respectively optionally rotated around a shaft 10. A data display 13 and a display 16 of the names of respective work sorts are respectively formed on the 1st member 3 and the 2nd member 4 and the same display 27 as the display 16 is formed also on the 3rd member 5. The starting data of the initial work is set up to the display 13 by turning the 2nd member 4, and when the start of the practical work is delayed or advanced from the schedule, the 3rd member 5 is rotated from the 2nd member 4 by the delayed or advanced number of days.</p> |
