| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic resin lower cover which can reduce the depth size of a mold for molding, lower the cost of the mold for molding due to simplifying of the dividing structure of the mold, which will hot simply fall from an electric connection block due to vibration or the like, and whose reliability is high. SOLUTION: This synthetic resin lower cover 21 is provided with a bottom wall 23, which covers the bottom face of an electric connection block. In addition, it is provided with a lock piece 27, which extends nearly perpendicular from the edge of the bottom wall 23. At a support 27a of the lock piece 27 which is extended from the edge of the bottom wall 23, a thin-wall hinge part 28 with which the support 27a can be tilted to a state which is parallel to the bottom wall 23 is installed to be close to the bottom wall 23 from a coupling part which is formed on the tip side of the support 27a. Then, the lower cover 21 is injection-molded in an attitude, in which the support 27a is bent to the outside by the thin-wall hinge part 28. |
