| 摘要 |
<p>A gutter (1) and associated coupling members are provided with bends (3, 4 and 11, 12 respectively) along the rim in the entire length thereof, and each of said bends is provided with cuts defining a plurality of equidistantly spaced teeth (8 and 15 respectively). In one embodiment (figs. 1 and 2), the bends (11, 12) of the coupling member are designed to be received in the bends (3, 4) of the gutter, and the teeth (15) on the coupling member are designed to be received in the cuts (7) on the gutter simultaneously with the teeth (8) on the gutter being received in the cuts (13) in the coupling member. This provides a very stable coupling which secures the parts effectively against mutual longitudinal movement. In another embodiment, the gutter has an upwardly directed edge (51) with cuts (52) to cooperate with downwardly extending projections (58) on a coupling member.</p> |
