| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable an opening/closing cover to be easily engaged and locked, and to prevent the engagement lock from being easily released. <P>SOLUTION: A lock mechanism 7 is composed of a recessed portion 11 provided in a housing 3; and a projecting portion 13 which is assembled in an opening/closing cover 5 so as to be displaced, engaged with the recessed portion 11, and on which force in a separating direction from the recessed portion 11 is applied. The lock mechanism comprises a guiding member 17 which is assembled in the opening/closing cover 5 so as to be displaced, and integrally displaced with the projecting portion 13 to the opening/closing cover 5; and a guide tilting surface 19 which is provided in the housing 3, and slides with the guiding member 17 to displace the guiding member 17 to the opening/closing cover 5 when the opening/closing cover 5 rocks from a rocking possible state to a rocking impossible state. When the guiding member 17 contacts with the guide tilting surface 19, the projecting portion 13 displaces to the opening/closing cover 5 so as to come close to the recessed portion 11 side, as compared with a case that the guiding member 17 does not contact with the guide tilting surface 19. <P>COPYRIGHT: (C)2012,JPO&INPIT |
