| 摘要 |
The housing slats (13,14) in both sets (11,12) are identical in appearance. The trip button (16) is designed as an exchangeable plug component and can thus be fitted to one of the swivel slats of the first set (13,11) directly from the side furthest from the second set (12). Otherwise the plug is fitted in through the second set slats so as to entrain these (14). The second set (12) slats (14) are fixed so that when the button is fitted through these with play, it grasps one of the first swivel slats of set (11) from above. The button is slotted crossways behind to take and guide the slats, the clear width of one slot (172) to exceed that of the second slot (171) completing the cruciform slot. A web piece (18) to the rear of swivel slat (13) wedges into the wider slot (172) where the web projects between fixed slats (14). |
