Support device for furniture shelves

A shelf-supporting device (1, 1′, 1″) for a reversible connection of a shelf (200) to a shoulder (300) of a piece of furniture, said device being configured for being inserted inside a shelf seat (201) formed within a thickness of said shelf (200) and comprising:

• a main body (12, 12′, 12″), which is slidingly associated with a connection pin (11) movable between a first operating position, in which said pin (11) protrudes from said shelf (200) so as to be able to be inserted into a housing seat (301) defined in said shoulder (300), and a second retracted position, in which said pin (11) does not protrude from said shelf (200) or protrudes so as to be able to be released from said housing seat (301),
• wherein said main body (12, 12′, 12″) is dimensioned to house an entirety of said pin (11) and comprises, on an outer surface thereof, one or more projecting elements (13), which extend towards an outside of said main body (12), and which are configured so that forces that the pin (11) transfers to the shelf-supporting device (1) are discharged onto the shelf through said one or more projecting elements (13), and
• wherein said one or more projecting elements (13) extend along an entire length said main body (12, 12′, 12″) at side surfaces (12e, 12e′, 12e″) thereof, have a greater transverse extension in correspondence with a front area (14) of the main body (12, 12′, 12″) compared with a rear area opposite the front area, and are tapered at a constant taper angle along the length of said main body, reducing an overall dimensions of said one or more projecting elements (13) in a transverse direction from the front area (14) towards the rear area.