| 摘要 |
PROBLEM TO BE SOLVED: To provide a drawer device for a drawer-type circuit blocker which allows easy installation and removal of a blocker body to and from a drawer frame, with a simple structure that can secure safety. SOLUTION: The drawer device comprises catch pins (7, 7a) of the blocker body; a slide plate (8) of the drawer frame; a catch lever (11), having a notch (11a) engaged with the catch pins and arranged on the slide plate; an operation screw (9) extending in the depth direction; a drawer nut (10) screwed into the operation screw; a stopper means (13), which blocks the rotation of the catch lever when the blocker body is positioned in between a connecting position and a position, immediately in front of a disconnecting position; and stopper pins (12, 12a) which are attached to drawer nuts, fit in a long hole (8c) of the slide plate and blocks the rotation of the catch lever, when the stopper pins are positioned at the depth side of the long hole; and the edge (11c), at this side of the notch formed at an arm of the catch lever and the edge (11f) of the tip of the catch lever, forms an angular edge in cooperation with each other. COPYRIGHT: (C)2008,JPO&INPIT |
