| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that, in a conventional optical pickup apparatus, since an engaged projection at an opposite side to a principal surface portion of a base member is made perpendicular to a side surface portion, a gap is produced between one surface of the engage projection at the opposite side to the principal surface portion and one side at a distal end side of an engage hole, such that backlash occurs between the base member and a cover member. <P>SOLUTION: The optical pickup apparatus is provided with: a base member 52 including an optical path on which a light beam passes; and a cover member 61 of which the principal surface portion 61a is superposed on a principal surface portion 52a of the base member 52 so as to cover the optical path. An engage hole 63 provided in an engage piece 62 that is made approximately perpendicular to the principal surface portion 61a of the cover member 61 is engaged with an engage projection 54 provided at a side surface portion 52b that is approximately perpendicular to the principal surface portion 52a of the base member 52, thereby attaching the cover member 61 to the base member 52. An engage displacement surface 54b that displaces in such a direction that its distal end side gets closer to the principal surface portion 52a, is provided in the engage projection 54 at an opposite side to the principal surface side 52a of the base member 52. <P>COPYRIGHT: (C)2009,JPO&INPIT |
