| 摘要 |
PURPOSE:To cause a connection plug-pin to be insulatedly protected spontaneously when a storage battery block is detached from said plug pin by curving an insulating cylinder into bellows-like form by pressing said insulating cylinder by means of either the flanged part of a jack or the outer wall surface of an electric apparatus located around the jack. CONSTITUTION:An insulating cylinder 17 can be fixed easily by pressing its flanged base part 19 indicated in Figure (a) by means of the flange 20 of a plug pin 4, and making the plug pin 4 to protrude from a hole 21 which is common to both the insulating cylinder 17 and the plug pin 4. Figure (c) represents the state in which the connection plug-pin 4 is attached to a jack 5 on the apparatus main-body 1 side, and the insulating cylinder 17 is pressed and curved into bellows-like form. In Figure (c), the plug pin 4 and the jack 5 are fixed by subjecting a synthetic-resin side wall 29 to hot melt. |
