| 摘要 |
A conductor crimping portion (13) is formed to have a U-letter shaped cross section, and is crimped and connected to a conductor (Wa) of a terminal of an electrical wire. The conductor crimping portion (13) has a bottom plate (15), and a pair of conductor crimping pieces (13a) that are extended upward from both left and right side edges of the bottom plate (15) and that crimp the conductor (Wa) of the electrical wire arranged on an inner surface of the bottom plate (15) so as to wrap it. Concave serrations are provided in an inner surface of the conductor crimping portion (13). A number of circular concave portions (20) are provided in the inner surface of the conductor crimping portion (13) as the concave serrations so as to be scattered in a state of being spaced aside from one another. A diameter (d) of an inner bottom surface (21) of each circular concave portion (20) is set within a range of 0.15 (an error range is ±0.04) mm to 0.8 (the error range is ±0.04) mm. A serration angle (¸) between an extension surface (21a) of the inner bottom surface and an inner side surface (22) of each circular concave portion (20) is set within a range of 60 to 90 degrees. A shortest distance (b) of a flat surface portion between peripheries of mutually adjacent circular concave portions (20) is set to be 0.17 (the error range is ±0.09) mm. |
