Abstract: A window regulator includes a main arm, a first sub-arm, and a second sub-arm. The main arm has a hole through it. A flange member surrounds the hole. The first sub-arm includes a shaft section which projects through the hole and is secured to the second-sub arm. In one embodiment, the distal edge portion of the flange member is curved. In a second embodiment, the flange member extends transversely from the main arm, and a low-friction member is between the distal edge portion of the flange member and a surface portion of the first sub-arm. In a further embodiment, the main arm and the second sub-arm have sliding surfaces in contact with each other, and a concave lubricant holding portion is provided on one of the sliding surfaces. The window regulator reduces noise during raising and lowering of the window and ensures rigidity of the first sub-arm.

Abstract: A window regulator comprises a flange member formed on a main arm so as to surround a hole penetrating the main arm and project from one side of the main arm, and a shaft section formed on a first sub-arm so as to project toward a second sub-arm, being in a sliding contact with an inner surface of the flange member corresponding to the hole, and secured to the second-sub arm. In this configuration, a distal edge portion of the flange member is formed with a curved surface toward the first sub-arm, thereby reducing a frictional resistance between the main arm and the first sub-arm. Thus, the window regulator can avoid an unusual noise caused during the respective rotations between the main arm and the first sub-arm, and ensures the rigidity of the first sub-arm.