| 摘要 |
PURPOSE:To miniaturize the fitting part of a yoke by bending up each yoke part of a plate with bending lines set at a base part as datums, and by forming embossments over the base part with its both sides lacking and the yoke parts in the inward direction. CONSTITUTION:A plate 22 has a base part 23 and yoke parts 24a, 24b, and bending lines 26a, 26b to cross the plate (22)'s line of apsides 25 are set in the base part 23 near the yoke parts 24a, 24b, and the yoke parts 24a, 24b at the both sides are bent up. Stiffening ribs 33a, 33b facing inward are formed inside the yoke 21 to stretch over the base part 28 and the yoke parts 30a 30b. Thus, through small in size, it ensures the strength required for a yoke. |
