| 摘要 |
<p>The drophead (10) has swingable supports (12) which rest upon a lock plate (14) such that pivoting of supports is blocked in first lowered position, while enabling pivoting of supports in second lowered position. The locking plate is set with a recess (18) for locking bolt (20). A main wedge (30) is set in the region of contact surface (A) on a projection (34) formed at the base. An independent claim is included for method for removal of ceiling formwork elements.</p> |
