| 摘要 |
The invention relates to a profiled bar 4 with a “T” section comprising a rib 24 and a plate 28. The profiled bar 4 has, on at least one end 12, 16, an attachment element 20 suitable for engaging with a further profiled bar 4″. The rib comprises at least one coupling aperture shaped to house said attachment element 20, which comprises a base 40 for fixing to the rib, projecting at least partially from the profiled bar 4 with one free end 44, and a tongue 48 flexibly elastic and coupled to the fixing base. The tongue 48 is obtained through shearing and bending of a portion of the fixing base 40, so as to form an angle of incidence with the fixing base 40 itself and is provided with a pair of recesses 51, 52 which define an attachment head 50. The coupling aperture 28 defines a first pair of projections 31, 32 suitable for engaging with the recesses 51, 52 to hold the attachment head 50 to the rib, said projections 31, 32 being positioned in opposite positions to a longitudinal centre line plane L-L of the rib. |
