| 摘要 |
A device is disclosed for fastening a grating frame (2) to the intrados (10) of an opening in a wall by means of several wall anchors which have each an anchoring part (11) fixed in an anchoring bore with a screwable threaded bolt (5) whose head is supported on a bearing arranged on the grating frame and whose shaft is enclosed by a protective sleeve (7) which on the one hand projects into a recess (2.1) associated with the grating frame (2) and which on the other hand projects into a recess (13.1) which surrounds the anchoring bore. In order to improve the safety of such a device, to make it easier to compensate dimensional differences and to make mounting easier, the protective sleeve (7) is made of a hardened material which is axially supported on the grating frame (2), on the side of the grating, and which can be cemented with cementing mortar (14) in the recess (13.1) that surrounds the anchoring bore (13), on the side of the intrados (10). |
