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1. WO2016083217 - DISPOSITIF D'AMORTISSEMENT OU DE RAPPEL DESTINÉ À DES BATTANTS DE PORTE COULISSANTE OU À DES TIROIRS

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CLAIMS

1. A damping or return device (1) for sliding door leaves (2), particularly for furniture (3) or for drawers, which is characterized in that it is constituted by:

- a first trolley (4a), which is associated with said door leaf (2) and is slideable with respect to said item of furniture (3),

- a diametrically differently-polarized magnet (19), associated with said first trolley (4a) or with said item of furniture (3),

- at least one steel plate (21a, 21b), associated with said item of furniture (3) or with said first trolley (4a),

said first trolley (4a) interacting selectively with at least one elastically compressible element (24a, 24b) which abuts, in opening and in closing, with an abutment element (23, 27) which is associated with and protrudes from said item of furniture (3).

2. The device according to claim 1, characterized in that said first trolley is constituted by a central body (5), substantially parallelepiped in shape, at the longitudinal central plane of said central body (5) a diametrically differently-polarized magnet (19) being associated therewith which, from the magnetic point of view, is divided into a first half-magnet (20a) and a second half-magnet (20b), which are coupled together and are mutually identical, being polygonal in cross-section and having opposing polarities.

3. The device according to claim 1 or 2, characterized in that it comprises two steel plates (21a, 21b), which are associated, at the top (12) of said item of furniture (3) at a central region, with sliding guides or rails (10, 11) for two pairs of wheels (8, 9), said two plates (21a, 21b) being arranged in axial alignment with said diametrically differently-polarized magnet (19), said two plates (21a, 21b) being substitutable by a further magnet with polarities which may or may not be opposite to that of said magnet (19).

4. The device according to one or more of the preceding claims, characterized in that one of said two plates (21a, 21b) is arranged proximate to a lateral wall (22) of said item of furniture (3) and the other proximate to a first abutment element (23) which protrudes from said top (12) in an area that corresponds to the condition in which the door leaf is open.

5. The device according to one or more of the preceding claims, characterized in that said two plates (21a, 21b) have a length substantially equal to that of said diametrically differently-polarized magnet (19).

6. The device according to one or more of the preceding claims, characterized in that said first trolley (4a) interacts selectively with a pair of elastically compressible elements (24a, 24b) which abut, in opening and in closing, respectively with said lateral wall (22) of said item of furniture (3) and with said first abutment element (23).

7. The device according to one or more of the preceding claims, characterized in that each one of said elastically compressible elements

(24a, 24b) is constituted by a spring that lies partially within a seat (25a, 25b) which is provided axially to said central body (5) in a region that lies above said diametrically differently-polarized magnet (19).

8. The device according to one or more of the preceding claims, characterized in that the free ends of each one of said elastically compressible elements (24a, 24b) protruding externally from said central body (5) are associated with a plug (26a, 26b) which abuts with said first abutment element (23) or with said lateral wall (22) of the item of furniture (3) or with a second abutment element (27) arranged against said lateral wall (22).

9. The device according to one or more of the preceding claims, characterized in that said diametrically differently-polarized magnet (19) is associated with a fixed part of a drawer or with a moveable part of said drawer and in that said at least one steel plate (21a, 21b) is associated with a moveable part of said drawer or a fixed part of said drawer.