An embodiment provides a lock-release apparatus including: a rotation member to actuate a locking member; a case member rotatably supporting the rotation member; an operation member slidable in a direction substantially in parallel to a rotation plane of the rotation member; and a spring member urging the rotation member in a given rotation direction. The lock-release apparatus further includes a link structure converting a sliding movement of the operation member into a rotational movement of the rotation member. More specifically, the case member includes: an accommodation section slidably accommodating the operation member to allow an operation face thereof to be exposed; and a support section rotatably supporting the rotation member.