| 摘要 |
1. Folding door, whose door leaves or members (3 to 5, 7 to 9) are constructed in torsionally stiff manner and mounted in self-supporting manner in swivel hinges (14, 16) with vertical swivel pins (17, 18) and in the open position are folded in individually superimposed zig-zag-like manner to form at least one group (20, 21) with a guide member (32, 33, 35) at the top on a door member in the vicinity of the hingeside end of the outermost, even-numbered door member, with a guide rail (31) in which the guide member is guided and which is mounted in stationary manner along the upper edges of the door members in the closed position and with a stable locking member (50, 51) releasable against spring loading for locking the group in the open position and which in the vicinity of the position occupied by the guide member with the group folded is located in the guide rail and has on its end opposite to the guide member a sloping entry edge (54) and following onto the same a stop depression (55) for the guide member, characterized in that the locking element (50, 51) is a two-armed lever, which is pivotably mounted about a vertical axis (52), that the entry edge (54) and stop depression (55) are provided externally on a lever arm facing the guide member, that a loading spring (56) is supported on the other lever arm and urges the locking element into its locking position, in which the guide member in the open position of the group has dropped into the stop depression and is detachably secured between the stop depression and the facing wall of the guide rail and that one or more end stops (70, 71) are provided on the door members and associated fixing counterpieces (78) for locking the door in the closed position. |
