| 摘要 |
<p>PURPOSE:To rigidly maintain the right-angled relation of a capstan to a cassette tape even when a printed circuit board used as a chassis is warped by providing a guide base to which a cassette-positioning pin and the capstan are attached and connecting the printed circuit board with the said guide base with a clearance between them. CONSTITUTION:The printed circuit board 10 is placed on the guide base 29 in a manner that the former's lower surface 10b is placed on the tops of respective pairs of protruding parts 54 that are integrally formed on the base at its both ends of longitudinal sides, and they are connected in vertical pile with the clearance 55 between themselves. Therefore, if the board 10 warps due to thermal characteristic or aging, the warping is absorbed in the clearance 55, causing unfavorable influence on cassette-positioning pinch rollers 16a and 16b or the capstan 17.</p> |
