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(11) | EP 1 520 949 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Mortise lock for a secondary wing of fire doors |
(57) A selvage (1) for a secondary wing of fire doors, of the type comprising a body provided
with gears associated with respective vertically sliding sliders (19) that engage
in corresponding receptacles, one in the threshold and one in the lintel of the opening
where the door is installed, the gears being associated with a panic bar for opening.
The body is symmetrical with respect to a horizontal plane that passes through the
centerline and is provided with two symmetrical bits (11), each of which is individually
suitable to engage the panic bar, elastic elements being interposed between the sliders
(19) and the gears.
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