Combination of a support device with a seat of a shelf

1 . A combination of a shelf-supporting device and a shelf having a shelf seat for said shelf-supporting device, said shelf seat being defined within a thickness of said shelf of a piece of furniture to receive an entirety of said shelf-supporting device for a reversible connection of the shelf to a shoulder of the piece of furniture, said shelf-supporting device comprising:

a main body, which is slidingly associated with a connection pin movable between a first operating position, in which said connection pin protrudes from said shelf so as to be able to be inserted into a shoulder seat defined in the shoulder, and a second retracted position, in which said connection pin does not protrude from said shelf or protrudes but can still be released from said shoulder seat,

wherein said shelf seat has an oval or circular cross-section,

wherein said main body has a box shape comprising an upper surface disposed longitudinally, a lower surface disposed longitudinally, a front area from which the connection pin protrudes, and a pair of side surfaces, the front area having a solid portion with a continuous front surface interrupted only by a hole dimensioned to enable a passage of the connection pin,

wherein said main body has an elongated shape having a transversal section with an upperly and lowerly flattened oval profile along a longitudinal extension of the main body, the upper surface being planar along an entire length thereof so as to be configured as a bevel along an entirety thereof, and

wherein a distance exists between the upper surface of the main body and an upper internal wall of the shelf seat when the shelf-supporting device and the shelf are assembled,

so that the upper surface of the main body does not come into contact with the upper internal wall of the shelf seat when the shelf-supporting device is assembled into the shelf.

2 . The combination according to claim 1 , wherein the upper surface of the main body configured for not being in contact with the upper internal wall of the shelf seat formed in the shelf extends from a front area of the shelf-supporting device, from which said connection pin protrudes.

3 . The combination according to claim 1 , wherein said main body comprises, on the pair of side surfaces thereof, one or more projecting elements, which extend longitudinally towards an outside of said main body.

4 . The combination according to claim 2 , further comprising one or more projecting elements that protrude longitudinally and outwardly from one or both of the pair of side surfaces of said main body.

5 . The combination according to claim 4 , wherein said one or more projecting elements extend towards an outside of said one or both of the pair of side surfaces at least in correspondence with said front area of said main body.

6 . The combination according to claim 5 , wherein said one or more projecting elements have a triangular profile on a transverse plane.

7 . The combination according to claim 4 , wherein said main body has a symmetrical profile with respect to a longitudinal symmetry plane, said one or more projecting elements extending outwardly from an entire length of said one or both of the pair of side surfaces of said main body and along said longitudinal symmetry plane.

8 . The combination according to claim 4 , wherein said main body comprises said one or more projecting elements extending outwardly from an entire length of said one or both of the pair of side surfaces of said main body and only below a longitudinal symmetry plane.

9 . The combination according to claim 4 , wherein said one or more projecting elements extend along an entire length of said one or both of the pair of side surfaces of said main body.

10 . The combination according to claim 4 , wherein said one or more projecting elements have a greater transversal extension in correspondence with the front area of the main body, and are tapered longitudinally, reducing their overall dimensions in a transverse direction towards a rear area of the shelf-supporting device opposite the front area.

11 . The combination according to claim 1 , wherein said main body comprises a base body internally defining a seat for housing an actuator of said connection pin and a cover configured to close said main body from above.

12 . The combination according to claim 11 , wherein said actuator of said connection pin comprise axial movement means of the connection pin movable along an axial movement direction of the connection pin, and motion transformation means configured to transform a rotary movement of an actuation tool into a translational movement of said axial movement means.

13 . The combination according to claim 12 , wherein said axial movement means of the connection pin comprise a slide connected to, or formed integrally with, said connection pin, said slide comprising a longitudinal groove and a shaped internal seat, and wherein said motion transformation means comprise first element having a cylindrical main body and a cam-shaped second element connected to said main body of said first element, said main body of said first element being rotatably inserted into said longitudinal groove of said slide and said cam-shaped element interacting with the shaped internal seat of said slide so that a rotation of the main body of said first element caused by a tool causes a movement in an axial direction of the slide.

14 . The combination according to claim 13 , wherein said axial movement means of the connection pin further comprise, associated with said slide, elastic means configured to keep said slide in an advanced position and said connection pin in the first operating position.

15 . The combination according to claim 13 , wherein said slide and said connection pin are connected to each other by shape coupling.

16 . A combination of a shelf-supporting device and a shelf having a shelf seat for said shelf-supporting device, said shelf seat being defined within a thickness of said shelf of a piece of furniture to receive said shelf-supporting device for a reversible connection of the shelf to a shoulder of the piece of furniture, said shelf-supporting device comprising:

a main body, which is slidingly associated with a connection pin movable between a first operating position, in which said connection pin protrudes from said shelf so as to be able to be inserted into a shoulder seat defined in the shoulder, and a second retracted position, in which said connection pin does not protrude from said shelf or protrudes but can still be released from said shoulder seat,

wherein said shelf seat has an oval or circular cross-section,

wherein said main body has an elongated shape defined by a longitudinal bevel on its upper surface and a longitudinally arcuate lower surface, or by a longitudinal bevel on its upper surface and a planar lower surface, the upper and lower surface being connected by longitudinal arcuate side surfaces, and

wherein said main body has a cavity defined therein and a continuous front surface interrupted only by a hole sized to enable a passage of said connection pin, said connection pin being movable to protrude from said front surface,

wherein the combination of the shelf-supporting device and the shelf defines a gap between the upper surface of the main body and an upper internal wall of the shelf seat,

so that the upper surface of the main body does not come into contact with the upper internal wall of the shelf seat when the shelf-supporting device is assembled into the shelf;

further comprising a seat, in correspondence with a front area of said main body having a solid portion, said seat being open on a lower surface of the main body and being configured to house a T-nut having a main body provided with a pass-through hole for passage of the connection pin and a base portion defining two flaps projecting laterally with respect to said main body of the T-nut.

17 . The combination according to claim 16 , wherein, when the shelf-supporting device is assembled, the main body of said T-nut is inserted in said seat defined in the main body of the shelf-supporting device, and wherein said two flaps of said base portion are abutted against said main body the shelf-supporting device, so that forces, which, when the shelf-supporting device is in use, act on the connection pin, are transferred, through said T-nut, to the main body of the shelf-supporting device, at a front area thereof having the solid portion.

18 . A shelf-supporting device for a reversible connection of a shelf to a shoulder, the shelf-supporting device comprising:

a main body slidingly associated with a connection pin movable between a first operating position, in which said connection pin protrudes from the shelf so as to be insertable into a shoulder seat formed in said shoulder, and a second retracted position, in which said connection pin does not protrude from said shelf or protrudes but can still to be released from said shoulder seat,

wherein said main body has a shaped profile so that at least one portion of an upper surface of the main body does not come into contact with an upper internal wall of a shelf seat defined in a thickness of said shelf when the shelf-supporting device is assembled into the shelf,

wherein said shelf-supporting device is configured to be received in a shoulder seat having an oval or circular cross-section, wherein said main body has a box shape comprising an upper surface disposed longitudinally, a lower surface disposed longitudinally, a front area from which the connection pin protrudes, and a pair of side surfaces, the front area having flattened upper and lower edges and being made as a solid portion with a continuous front surface interrupted only by a hole dimensioned to enable a passage of the connection pin,

wherein said main body has an elongated shape having a transversal section with an upperly and lowerly flattened oval profile, in which the upper surface is planar along an entire length thereof, and

wherein a distance exists between the upper surface of the main body and the upper internal wall of the shelf seat when the shelf-supporting device and the shelf are assembled,

so that the upper surface of the main body does not come into contact with the upper internal wall of the shelf seat when the shelf-supporting device is assembled into the shelf.