| 摘要 |
1. A fixing base for securing a channel to a shaped member having limbs provided with right-angled flange portions, of the kind comprising a plate (20) which, by means of its upper face, forms a rest plane on which a channel (11) can come to be carried by way of the bottom portion (13) thereof and which, in the middle region of said upper face, has means for the intervention of a fixing member (23) which, being intended to pass through the bottom portion (13) of said channel (11) by way of an opening (15) therein, forms a lock to be turned through a quarter of a turn and transversely has two arms disposed transversely in line with each other, by way of which it is capable of gripping said bottom portion (13), and at least two retaining teeth (37-38, 37'-38') which, disposed on the lower face of said plate (20), are capable of co-operating with the right-angled flange portions of the same shaped member, characterised in that one at least of said retaining teeth (37-38, 37'-38') is carried by an elastically deformable tongue portion (40, 40', 65, 66, 76), the means provided on said plate (20) for the intervention of a fixing member (23) are formed by a well (22, 22') disposed substantially perpendicularly to the upper face of said plate (20) and, by means of its leg (24), the lock which is formed by said fixing member (23) is adapted to be rotatable in said well (22, 22'), said lock being the only portion of the assembly which is thus intended to be rotatable. |
