Furniture carcass

A furniture carcass comprising panels assembled edge to edge in a loose tongue (11) and groove (21) method and having a bottom (6) sliding into grooves (31, 32) of the panels (10, 20) in which a first (10) and a second panel (20) are assembled by the edge of the first panel (10) which abuts on an inner side (20a) of the second panel (20) to form a dihedral,

• A on its edge, the first panel (10c) has along its edge (10c) along the inner side (10a), a loose tongue (11) having an advanced bearing surface (15) and a locking groove (16) at a base of the tongue (11) along the inner side (10a) of the first panel (10),
• B the second panel (20) comprising along an edge and on its inner side (20a) a complementary groove whose shape matches that of the edge (10c) of the first panel (10) with, on the one hand, a longitudinal assembly groove (21), having a shape matching that of the tongue (11) it receives and beyond the groove (21), a bearing surface (25) standing back from a plane of its inner side (20a) for receiving the advanced bearing surface (15), and a locking groove (26) parallel to the inner side (20a) of the second panel (20) opening out into the groove (21) in a position matching that of the locking groove (16) in the first panel (10) when the two panels (10, 20) are assembled,
• C by assembly, the loose tongue (11) fitting into the groove (21) and the locking grooves (16, 26) complement one another to form a channel (30) receiving a locking device (5, 50) slipped into the channel (30) to secure the loose tongue (11) in the groove (21),
• D the locking device (5) includes:
• a board (52) forming a handle and an underside (520) of which is plane to form a board bearing surface on the assembled panels (10, 20), around an opening of the channel (30),
• a rigid blade (51) integral with the underside (520) of the board (52) and having a rod shape, rectangular in section, matching that of the channel (30) so that it can be slipped into the channel (30),
• an attaching tab (53) integral with the bottom (520) and terminating in a clipping nose (531) turned toward the blade (50) and designed for clipping into the groove (32) of the second panel (20) with the clipping nose (531), distant from the bottom (520) of the board (52) by a distance (d2) included between the board bearing surface of the panels (10, 20) around the opening of the channel (30) and the groove (31, 32) receiving the bottom (6),
• characterized in that the fastening tab (53) is in the form of a truncated pyramid the large base of which is connected under (520) the board (52) and the small base of which ends in the nose (531).