| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain an insulation switching device with a small change of switching speed capable of freely operating a combination and order of switching of a plurality of isolating switches or the like with a less insulation operation shaft, without any impact given to an operation mechanism during operation. <P>SOLUTION: With the insulation switching device housing a plurality of isolating switches and grounding switches in the same receptacle, a cam, fixed to the insulation operation shaft, performs a switching drive of a movable contact. An arc and Archemedean curve part with a constant diameter from the cam shaft is in a part of a figure of a guide part of the cam, and the plurality of the isolating switches can be switched as the movable contact suspends against a continuous rotation of the insulation operation shaft, diminishing fluctuation of the switching speed. <P>COPYRIGHT: (C)2004,JPO</p> |
