Press operation apparatus

摘要

When an operation body is urged upward by a flat spring and is in a return position, a projection disposed on the operation body is held between opposing positioning portions and the position of the operation body in an X-direction is set. When the operation body is pressed at a position away from a central portion of the operation body in the X-direction, the operation body pivots on one of retaining structures downward. At this time, the projection moves away from the opposing positioning portions, and resistance against a pressing operation can thereby be reduced.

主权项

1. A press operation apparatus comprising:
a case; an operation body disposed on the case; a switch disposed in the case and configured to be activated by pressing the operation body; an urging member disposed on the case and urging the operation body in a direction opposite to a direction in which the operation body is pressed; retaining structures arranged so as to be spaced apart from each other in a first direction; and positioning structures arranged between the retaining structures so as to be spaced apart from each other in a second direction perpendicular to the first direction, wherein each of the positioning structures includes a projection and opposing positioning portions, the projection is disposed on one of the operation body and the case, the opposing positioning portions oppose each other in the first direction and are disposed on the other of the operation body and the case, the projection is interposed between the opposing positioning portions when the operation body is moving in the direction opposite to the direction in which the operation body is pressed, and a position of the operation body in the first direction is set, and wherein the projection moves away from the opposing positioning portions when the operation body is pressed and pivots on one of the retaining structures.