| 摘要 |
1. Drop head for ceiling formwork system comprising a rectangular support plate (14) provided with lateral stops for supporting the formwork supports, two yoke plates (18) projecting downwardly from opposite sides of the support plate (14) and having a centre guide slot (24) closed by a connecting web (28), a connecting member (34, 36, 38, 44 ; 48, 50) with which the drop head may be fixed on the head plate (12) of a support tube (10) and a wedge thrust mechanism (32, 28) between yoke plates and connecting member for vertical adjustment of the support late (14), the wedge thrust mechanism comprising a T profile (30) of which the vertical leg runs in the guide slots and of which the vertical leg runs in the guide slots and of which the horizontal eggs run in a transverse slot (26) and carry wedge pulling face (32) which cooperate with the boundary edges (28) of the transverse slots, characterized in that the connecting member (34) projects with lateral extension (44 ; 48) into the lower portion of the guide slots (24) over the connecting webs (22), that the T profile (30) runs on the upper side of the connecting member (34, 44 ; 48) and that by lateral driving in of the T profile (30) the wedge pulling faces (32) thereof raise the yoke plates (18) via their slot boundary edges (28) until the connecting webs (22) are braced from below against the extensions (44 ; 48). |
