Patent ID: 9188214
Filing Date: 2015-11-17
Classification: B29C,F16H,H02K,Y10T

Abstract:
1. A motor apparatus which is formed by coupling a motor case having a rotational shaft housed therein and a gear case having a gear mechanism housed therein with each other, the motor apparatus comprising: a gear cover which occludes an opening of the gear case, the gear cover having a center portion formed with a through hole, an output shaft being introduced through the through hole; and a seal member which is provided on one side surface of the gear cover, wherein the seal member has: a flat-plate main body which covers one side surface of the gear cover, a first lip portion which is provided to an inner peripheral edge of the flat-plate main body so as to tightly seal a gap between the gear cover and the output shaft, and a second lip portion which is provided to an outer peripheral edge of the flat-plate main body so as to tightly seal a gap between the gear cover and the gear case, wherein the gear cover is integrally provided with the seal member by a two-color molding, the flat-plate main body is integrally provided with a gate portion which is formed by supplying molten rubber to one side surface of the gear cover in a vertical direction, and an overflow portion, which extends from one side surface of the gear cover to the other side surface of the gear cover, is provided at a collision area of the flat-plate main body, at which flows of molten rubber collide to each other.