| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To securely prevent an electric shock accident due to a human operation error in fuse replacement in a protection device having a fuse and a disconnector provided to wiring. <P>SOLUTION: A protection device 1 is provided with an interlock structure 2 including: a cover member 3 capable of moving between an attachment/detachment disallowed position where the fuse is disallowed to be attached or detached and an attachment/detachment allowed position where the fuse is allowed to be attached or detached; a rotary member 4 which is fitted to the cover member rotatably between a first rotational position where movement from the attachment/detachment disallowed position is stopped and a second rotational position where the movement is allowed; a rotary operation member 5 which is fixed thereto, and gripped to move the cover member and to rotate the rotary member; a slide member 6 which can move linearly between a switching restriction position where disconnectors SW1, SW2 are restricted from being turned ON and a switching allowed position where the disconnectors are allowed to be turned ON; a slide stop member which stops the slide member from moving from the switching restriction position while the cover member is arranged at the attachment/detachment allowed position; and a cam mechanism which converts the rotational movement of the rotary member into linear movement of the slide member. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
