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(11) | EP 1 944 447 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Device for an automatic closing of doors |
(57) A device (70) for an automatic closing of a door wing is coupled to a floor with
possibility of rotation and comprises a fixed group (40) which is fixed to the floor,
a rotary group (60) to which the door wing is fixed and a translating group (50) which
is coupled to the fixed group (40) in such a way as to translate orthogonally to the
floor and not to rotate in relation to the fixed group (40). The translating group (50) comprises elastic means (11) and at least an element (9) acting as a cam follower and translating orthogonally to the floor. The rotary group (60) to which the door wing is fixed comprises at least an element (6) acting as a cam in relation to the element (9) acting as a cam follower. The rotary group (60) is coupled to the translating group (50) so that the cam element (6) beats against the cam follower (9) and with a rotation of the rotary group (60) in a given direction the cam element (6) causes a translation, orthogonal to the floor, of the cam follower (9) and a compression of the elastic means (11). In the same manner, the expansion of the elastic means (11) causes a reverse rotation of the rotary group (60) as well as a reverse rotation of the door wing fixed to the rotary group. |