| 摘要 |
PROBLEM TO BE SOLVED: To surely fix a circuit breaker body by fitting a steam of a fixing screw between a head of the screw and a nut into the notch of a fixing metal fitting on the side of the body, when a fixing metal fitting on the side of a frame is rotated against the energizing force under the condition, where the body is at a connection position. SOLUTION: On both sides of a beaker body 1, body side fixing metal fitting 2 having a function of a knob useful to draw the body 1 and having an L-shaped section are fitted. To both side plates 3a of a drawer frame 3 frame side fixing members 4 are mounted corresponding to the fittings 2, respectively. A groove- like notched portion, having an opening in the direction of the member 4 of the frame 3, is formed at an arm extending in the direction of the side plate 3a of the fitting 2. To fix the body 1 to the frame 3 at a connection position, the stem of a fixing bolt is fitted in the notch of the body side fixing fitting 2 when the movable side fitting is rotated against the energizing force, and when the fixing bolt is fastened the body side fixing fitting 2, the movable side fitting and fixed side fitting are integrated with each other so that the body 1 is fixed.
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