| 摘要 |
<p>A method of sealingly mounting electric insulators passing through a plate wall, in particular for the manufacture of a housing case (10) for electric disconnecting switches, comprises the steps of making a collar (14) projecting from the plate at a passage hole (13) for the insulator; fitting the insulator (12) into the hole in the direction of the collar (14) projection so as to bring, upon interposition of a seal (18), an abutment edge (15) radially projecting from the insulator against an edge of the hole on the side opposite to the collar projecting side; bending the free end of the collar inwardly, forming a locking angle and forcing said end into a circumferential seating (16) present in the insulator surface so as to prevent the insulator from being withdrawn from the hole. In this manner a plate casing (10) for an electric apparatus is achieved which has an excellent tightness between the casing wall and the insulators passing therethrough. <IMAGE></p> |
