| 主权项 |
1. A securing mechanism formed integrally with a main body and configured to be able to be secured, together with the main body, to a mounting surface, the securing mechanism comprising:
a supporting column; an elastic piece; and a plurality of locking pieces, wherein the supporting column projects from a portion formed continuously with the main body in one direction, and the supporting column is insertable into a hole formed in the mounting surface from a tip end of the supporting column in a direction of the projection of the supporting column, wherein in the supporting column, a rib is provided in at least an area formed continuously with the main body, wherein the elastic piece is provided at a position that abuts the mounting surface on an inlet side of the hole when the supporting column is inserted into the hole, and upon the abutment on the mounting surface, the elastic piece is configured to be elastically deformed so as to exert on the supporting column a force in a direction of extracting the supporting column from the hole, wherein when the supporting column is inserted into the hole, at least one of the plurality of locking pieces is configured to be caught by or brought into pressure-contact with an outlet-side peripheral portion of the hole or an inner surface area of the hole, thereby to exert on the supporting column a force in a direction of inhibiting the extraction of the supporting column from the hole, wherein the plurality of locking pieces extend such that each of the plurality of locking pieces extends from an outer surface of the supporting column in a direction forming an obtuse angle with respect to a direction of the insertion of the supporting column, wherein each of the plurality of locking pieces has a shape corresponding to a part of a cylindrical body that expands from one end toward the other end in a shape of a circular truncated cone, and the plurality of locking pieces are disposed at positions at which a center of the cylindrical body coincides with a center of the supporting column, wherein the plurality of locking pieces form a plurality of arrays extending in a direction of the projection of the supporting column, wherein the locking pieces included in each array of the plurality of arrays are aligned spaced apart from one another in the direction of the projection of the supporting column, and wherein the plurality of arrays comprise a first array and a second array, and positions of the locking pieces included in the first array are displaced from positions of the corresponding locking pieces included in the second array in the direction of the projection of the supporting column. |
