Hinge for furniture leaves that open downwardly
10526827 ยท 2020-01-07
Assignee
Inventors
Cpc classification
E05F5/006
FIXED CONSTRUCTIONS
International classification
E05F1/08
FIXED CONSTRUCTIONS
Abstract
A hinge for leaves of furniture that open downwardly, which comprises a fixed part which can be connected to a back wall or a horizontal wall of the piece of furniture, and a moveable part which can be connected to a leaf of the piece of furniture, the fixed part and the moveable part being mutually connected so as to allow oscillation by way of articulation means which comprise at least one oscillation axis so that they can move between a closed position and an open position, in which the leaf lies substantially on the same plane of arrangement as the back wall or horizontal wall of the piece of furniture, and articulated supporting levers.
Claims
1. A hinge for leaves of furniture that open downwardly, which comprises: a fixed part which can be connected to a wall of the piece of furniture; and a moveable part which can be connected to a leaf of the piece of furniture, said fixed part and said moveable part being mutually connected so as to allow oscillation by way of articulation means which comprise a plurality of oscillation axes so that they can move between a closed position and an open position, in which said leaf lies substantially on the same plane of arrangement as said wall of the piece of furniture; a first articulated supporting lever and a second articulated supporting lever which are adapted to connect the fixed part of the hinge with a portion of the moveable part of the hinge and are adapted to rotate about at least one of the oscillation axes between the closed position and the open position, at least one of said first articulated supporting lever and said second articulated supporting lever being connected to the fixed part of the hinge and being shaped so that in the open position of the leaf it comes into contact with a resting surface of said fixed part of the hinge or of said wall of the piece of furniture; a device for decelerating the opening movement of said leaf, said deceleration device configured to detach, being arranged on said fixed part, and being connected to one of the supporting levers, to one of the oscillation axes, or to the moveable part of the hinge, and wherein one end of one of said first articulated supporting lever and said second articulated supporting lever is connected to said portion of said moveable part of the hinge, wherein one of said first articulated supporting lever and said second articulated supporting lever, which is not connected to said moveable part of the hinge, is connected with the leaf.
2. The hinge according to claim 1, wherein at least one of said first articulated supporting lever and said second articulated supporting lever is connected to the fixed part is shaped so that in the open position of the leaf it protrudes beyond said wall of the piece of furniture.
3. The hinge according to claim 1, further comprising four oscillation axes and two rockers, wherein said rockers comprise a first rocker and a second rocker in order to connect said moveable part of the hinge to said fixed part.
4. The hinge according to claim 1, wherein said deceleration device comprises a linear decelerator which is connected to one of the first articulated supporting lever and said second articulated supporting lever or to one of the oscillation axes or to the moveable part of the hinge.
5. The hinge according to claim 1, further comprising a device for braking the opening movement, said braking device comprising a moveable cam which is integral with one of said first articulated supporting lever and said second articulated supporting lever and is shaped so as to interact with at least one friction element which is integral with the fixed part of the hinge.
6. The hinge according to claim 5, further comprising means for adjusting the braking of the braking device.
7. The hinge according to claim 5, further comprising elastic means for retaining the closure portion of the leaf of the piece of furniture, said elastic means being actuated by said moveable cam of the braking means.
8. The hinge according to claim 1, further comprising means for adjusting deceleration of said deceleration device.
9. The hinge according to claim 1, further comprising actuation means for said deceleration device, said actuation means comprising a first lever, a second lever and a third lever, a first lever connected to the fixed part, a third lever connected to one of said first articulated supporting lever and said second articulated supporting lever, and a second lever connected to both the first lever and the third lever.
10. The hinge according to claim 1, further comprising means for adjusting the position of said fixed part of the hinge with respect to said wall of the piece of furniture in at least one of the vertical, frontal and/or lateral directions.
11. A hinge for leaves of furniture that open downwardly, which comprises: a fixed part which can be connected to a wall of the piece of furniture; and a moveable part which can be connected to a leaf of the piece of furniture, said fixed part and said moveable part being mutually connected so as to allow oscillation by way of articulation means which comprise a plurality of oscillation axes so that they can move between a closed position and an open position, in which said leaf lies substantially on the same plane of arrangement as said wall of the piece of furniture; a first articulated supporting lever and a second articulated supporting lever which are adapted to connect the fixed part of the hinge with a portion of the moveable part of the hinge and are adapted to rotate about at least one of the oscillation axes between the closed position and the open position, at least one of said first articulated supporting lever and said second articulated supporting lever being connected to the fixed part of the hinge and being shaped so that in the open position of the leaf it comes into contact with a resting surface of said fixed part of the hinge or of said wall of the piece of furniture; and actuation means for a deceleration device, said deceleration device configured to decelerate the opening movement of said leaf, said actuation means comprising a first lever, a second lever and a third lever, a first lever connected to the fixed part, a third lever connected to one of said first articulated supporting lever and said second articulated supporting lever, and a second lever connected to both the first lever and the third lever, wherein one end of one of said first articulated supporting lever and said second articulated supporting lever is connected to said portion of said moveable part of the hinge, wherein one of said first articulated supporting lever and said second articulated supporting lever, which is not connected to said moveable part of the hinge, is connected with the leaf.
Description
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
(1) Further characteristics and advantages of the invention will become better apparent from the description of a preferred, but not exclusive, embodiment of the hinge according to the present invention, which is illustrated by way of non-limiting example in the accompanying drawings wherein:
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DETAILED DESCRIPTION OF THE DISCLOSURE
(8) With reference to the figures, the hinge according to the invention, generally designated by the reference numeral 1, comprises a fixed part 2 which can be connected to a back wall or a horizontal wall 3 of the piece of furniture, and a moveable part 4 which can be connected to a leaf 5 of the piece of furniture.
(9) The fixed part 2 and the moveable part 4 of the hinge 1 are mutually connected so as to oscillate by way of articulation means which comprise at least one oscillation axis and preferably four oscillation axes and two rockers.
(10) The articulation means make it possible to move the leaf 5 between a closed position and an open position in which the leaf lies substantially in the same plane in which the back wall or horizontal wall 3 of the piece of furniture lies.
(11) In particular, the articulation means, as shown in the figures, comprise at least one rocker and preferably a first rocker 6 and a second rocker 7, which are connected respectively at a first end thereof to a box 8 of the moveable part 4 of the hinge, by way of a first pin 9 and a second pin 10, respectively, and with a second end thereof they are connected to the fixed part 2 of the hinge by way of respectively the third pin 11 and a fourth pin 12. In this manner, the two rockers 6 and 7 define an articulated quadrilateral.
(12) A plurality of articulated supporting levers, and preferably a first and a second supporting lever, connect the fixed part of the hinge with an advanced portion (advanced with respect to the articulation means and to the front plane of the piece of furniture) of the moveable part of the hinge or with the leaf.
(13) The figures show the case in which there are two supporting levers, respectively 15 and 16, in which the lever 16 is connected so as to oscillate to an advanced part 17 of the fixed part 2 and is contoured and arranged so that in the open position of the leaf 4 it preferably protrudes beyond the front plane of the piece of furniture and comes into contact directly or indirectly with a resting surface of the advanced part 17 of the fixed part. In particular, the lever 15 is pivoted at one of its ends with a protruding part 18 of the moveable part 4 of the hinge connected to the leaf 5, while the other end of the lever 15 is connected to a second lever 16 which in turn is connected so as to oscillate, together with a cam 19, to the advanced part 17 of the fixed part 2 of the hinge 1 at an axle 16.
(14) Alternatively, the lever 16 can come into contact directly or indirectly with a resting surface of the back wall or horizontal wall of the piece of furniture.
(15) The second lever 16 is shaped so that, in the open condition of the leaf 5, it abuts against the advanced part 17 of the fixed part 2 of the hinge 1 and preferably it protrudes externally with respect to the piece of furniture.
(16) The advanced part 17 of the fixed part 2 of the hinge 1 is substantially proximate to the pivoting point of the first rocker 6, i.e. at the third pin 11.
(17) The pivoting between the first lever 15 and the second lever 16 occurs by way of a pin 20 while the second lever 16, at the opposite end to the pin 20, as mentioned is connected to the fixed part 2 of the hinge by way of the axle 16.
(18) The hinge according to the invention further comprises braking means and/or deceleration means.
(19) The braking means are preferably constituted by a cam 19 and by a slider 22 against which the cam abuts when it rotates, with progressive braking during opening.
(20) Substantially, the cam 19, which is integral with the second lever 16, rotates about the axle 16 and with its rotation, when the leaf 5 is opened, it comes up against the slider 22 which is arranged fixed at the fixed part 2 of the hinge 1, thus exerting a braking action.
(21) Elastic means 24 are provided in order to keep the leaf 5 in the closed position, the elastic means 24 being actuated by the same cam 19 in the first braking means.
(22) As we have seen, the cam 19 exerts a braking action which is variable (basically it grows substantially along an entire opening arc).
(23) The hinge further comprises, as mentioned, means of deceleration, which are constituted by means for decelerating the opening movement, in particular of the end portion of the opening movement.
(24) The deceleration means are constituted preferably by a fluid-operated linear decelerator 30, which is functionally connected (directly or by way of transmission means) to one of the supporting levers 15, 16 or to one of the articulation means 6, 7, or to the moveable element of the hinge.
(25) Preferably, the decelerator 30 is fixed detachably to the fixed part 2 of the hinge, for example inserted in fixing elements that can be coupled to the fixed part 2 on one side and to actuation means thereof on the other side.
(26) The figures show a configuration in which the actuation means of the decelerator comprise a plurality of levers 31, 32 and 33 which are connected to the fixed part 2 of the hinge and to the supporting lever 16.
(27) Conveniently, the deceleration means can also be actuated by only one lever.
(28) The braking means and the deceleration means can be provided individually or in mutual combination.
(29) It is further possible to provide means for adjusting deceleration and/or braking, not shown in the figures; for example for the deceleration means can be provided for adjusting the travel of the decelerator, while for the braking means can be provided for adjusting the position of the slider 22 or the angular position of the cam 19.
(30) It is likewise possible to provide means for adjusting the position of the fixed part of the hinge with respect to the back wall or horizontal wall of the piece of furniture in at least one of the vertical, frontal and/or lateral directions, for example by having the fixed part 2 be made up of several parts that can move with respect to each other, and controlling the movements between these by way of screw-operated or cam-based adjustment elements; by way of such means it is possible to adjust the position of the leaf so that in the fully open position it comes into contact with the front surface of the piece of furniture, thus achieving a better support of the leaf.
(31) Therefore, the hinge according to the invention is capable of supporting the leaf in the open position and also of reliably controlling the speed of movement of the opening of the leaf.
(32) The hinge further has reduced encumbrances and an evident simplicity of mounting.
(33) In practice it has been found that the hinge according to the present invention fully achieves the set aim and objects.
(34) The hinge, thus conceived, is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.
(35) Moreover, all the details may be substituted by other, technically equivalent elements.
(36) In practice, the materials used, as well as the contingent shapes and dimensions, may be any according to the requirements and the state of the art.
(37) The disclosures in Italian Patent Application No. MI2015A000620 (102015902347518) from which this application claims priority are incorporated herein by reference.