| 摘要 |
<p>A jointing device (12) for adjacent stretches (10) of metal channels (1) for electrical cables with U-shaped cross section, wherein each stretch (10) has a horizontal bottom wall (42) and two vertical and mutually parallel side walls (44. The side walls (44) have ends provided with pairs of holes (48) elongated in a longitudinal direction and set alongside one another in a transverse direction. The jointing device comprises a first plate (14) having a flat base (18) and two pairs of hooks (20) projecting with respect to the flat base (18) on one and the same side and in an orthogonal direction. The hooks (20) are substantially L-shaped and each comprise a stem (22) and a head (24) that are mutually orthogonal. The jointing device (12) moreover comprises a second plate (16) having two pairs of substantially L-shaped openings (30), each opening having an horizontal region (30a) and a vertical region (30b). Each opening is associated to a respective retention formation (34) designed to co-operate in a relationship of interference with a corresponding head (24) of a respective hook (20).</p> |
