| 主权项 |
1. A hydraulic control apparatus, comprising:
a base body; and a housing to be fixed to one surface of the base body, a motor fixed to a back surface of the base body opposite to the one surface, wherein the housing includes an opening facing the one surface of the base body, and a pair of flange portions formed on and projected outwardly from an opening edge portion of the opening, and wherein the pair of flange portions includes a screw-formed housing fixing hole for fixing the housing to the base body using a fastening member and a reference hole for provisionally fixing the housing when assembling parts to the housing, the reference hole being formed by lightening the pair of flange portions and arranged parallel to the housing fixing hole, wherein the opening has a rectangular shape, wherein the pair of the flange portions are outwardly provided along two facing sides of the opening, and the housing fixing hole and the reference hole are provided in each flange portion, wherein, in the pair of flange portions, the housing fixing holes are respectively offset along a longitudinal direction of the flange portions from longitudinal centers thereof, the reference holes are respectively formed nearer to the longitudinal centers than the housing fixing holes, and the longitudinal centers being parallel to the longitudinal direction, wherein the motor is fixed to the base body by a motor fixing screw which is inserted from the back surface side of the base body, and wherein the housing is fixed to the base body by a housing fixing screw which is inserted from the back surface side toward the one surface side of the base body so as to be thread-engaged with the housing fixing hole. |
