YOKE HOUSING, MOTOR, AND METHOD FOR MANUFACTURING YOKE HOUSING

摘要

A yoke housing includes a tubular case and a flange. The tubular case is formed from a metal sheet in a drawing process. The flange is formed at an end of the tubular case. The flange has a width in the lateral direction that is equal to the outer diameter of the tubular case. The flange has a base including beads and a thick portion. Each of the beads is formed by compressing the base. A portion of the base in which the beads are not formed defines a thick portion. The thick portion is located at a middle portion of the flange in the lateral direction. The beads are located on opposite sides of the thick portion in the lateral direction.

主权项

1. A yoke housing comprising:
a tabular case formed from a metal sheet in a drawing process, wherein the tubular case includes a first end in an axial direction; and a flange formed on the first end and bent from the tubular case, wherein the flange has a narrow shape and extends in a longitudinal direction, a lateral direction, and a thickness direction, and the flange has a width in the lateral direction that is equal to an outer diameter of the tubular case, wherein the flange includes a base located proximal to an outer circumferential surface of the tubular case; wherein the base includes beads and a thick portion; wherein each of the beads is formed by compressing the base in the thickness direction; wherein the thick portion is defined in a portion of the base in which the beads are not formed; wherein the thick portion is thicker than the beads; wherein the thick portion is located at a middle portion of the flange in the lateral direction; and wherein the beads are located on opposite sides of the thick portion in the lateral direction.