| 摘要 |
<p>A tiltable form (2) for casting and erecting concrete walls has a tilting device (1) connected to the form (2) and the underlying floor structure (13) or like supporting structure. The form (2) is also equipped with adjustable upper and lower form defining members (21, 15) which are connected to a working platform (20, 14) mounted on the frame of the form, in such a way that any engagement in the countercast form face will be avoided. The tilting device (1) comprises a geared asynchronous motor (3) with a rotatably mounted threaded rod (4) driven by the motor, and an angular supporting leg (5) which at one end is pivotally connected to a form supporting beam (6) disposed substantially centrally underneath the form (2), and which at its other end is pivotally connected to an attachment (7) with a nut (8) screwable on the threaded rod (4), the attachment (7) being slidably mounted in roller bearings (9) in a slide rail (10) which extends underneath the form (2) between the extreme points of support (11, 12) for the supporting leg (5).</p> |
