Object of the invention is an assembling connector including a frame reinforced with ribbing, for fixing longitudinal finishing elements, having on side walls appropriate concave shaped elements integrated with catches located on the connector, characterised in that it is equipped:
- at the side of finishing elements with parallel protrusions 2 and 2' located on edges of the frame 1 perpendicularly to its surface, the protrusion 2 being terminated with a hooked catch 3, and the protrusion 2' with a perpendicular catch 4,
- at the side of carrying elements with parallel protrusions 13 and 13', also perpendicular to the surface of frame 1, the protrusion 13 being terminated with a hooked catch 14, and the protrusion 13' - with a perpendicular catch 15, the protrusions 13 and 13' and catches 14 and 15 being integrated with the carrying elements exhibiting appropriate concave shaped elements on side walls.
- with distance protrusions 5 located on a side wall of the frame 1.
Object of the invention is also a modular system implemented by means of the connectors.