| 摘要 |
<p>A rig for a core-drilling device for core drilling a concrete wall (1) includes a base structure (10) adapted to be anchored to a floor, ground, or other bed when the device is ready for operation, and a vertical column (3) having a top end (11) and a bottom end (12), which is secured to the base structure (10). To provide a rig, in which the top of the column can be securely held to a concrete wall, and does not require clamping against a ceiling, the rig further includes wall bracket (13) for supporting the column (3), said wall bracket including a top support structure (14) adapted to be anchored to the wall (1), an arm (15) having a first end (16) fixed to the top support structure (14) such that the arm (15) extends at essentially right angles thereto, a lockable clamping device (17) movable on the arm (15), and cooperating members (18, 19) on the lockable clamping device (17) and at the top end (11) of the column (3) for securing the rig (2) in an intended working position for the device.</p> |
