| 摘要 |
A fixing member 12 has a securing portion 40 to be placed in a space 23 formed between a first fixed area 21 and a second fixed area 22, the second fixed area being placed facing opposite to and being apart from the first fixed area 21, having an opening 24, and not being allowed to displace relative to the first fixed area 21. The securing portion 40 is formed in a shape rotatable with respect to the first fixed area around the rotational axis L that extends in a direction penetrating the opening 24, and has a first abutting portion 51 abutting on the first fixed area 21 and a plurality of second abutting portions 52 at a plurality of positions on the circumference of the opening 24 at the end. The plurality of the second abutting portions 52 have inclined guide faces 42 around the rotational axis L, the inclined guide faces inclining in circumferential direction, with one rotational directional coming closer to the opening 24, and also in radial direction, with positions closer to the rotational axis L coming closer to the opening 24. Each inclined guide face 42 is made to abut on the second fixed area 22 by means of rotation, thereby fixing the securing portion 40. |
