| 摘要 |
<p>PURPOSE:To reduce the size and thickness of an optical rotary encoder by arranging a rotary slit disk and a printed board between bearing parts at both axial sides of a shaft. CONSTITUTION:The printed board 6 is fitted to a right base 1b mounting a bearing 7, and the shaft 2, on which the rotary slit disk 13 is fitted, is incorporated in the right base 1b through the hole 16 of the printed board 6. Then, an end part of the shaft 2 is fitted in the bearing 7 fitted to a left base 1a, and both bases 1a and 1b are engaged with each other by an engagement part 15 and covered with a cover 13. The rotary slit disk 13 is fitted on the shaft 2 between both bearings 7 and the printed board 6 is also fitted to the right base 1b so that it is placed between both bearings 7.</p> |
