An anchoring arrangement for securing an object to a support structure having an internal cavity includes an anchoring element which extends through an anchoring hole into the internal cavity and includes a hollow anchoring member having a passage at its leading end and a collar mounted on the trailing end of the anchoring member so as to surround the same, which supports the anchoring element in the anchoring hole and closes the anchoring hole around the anchoring member. A bag-shaped limiting member surrounds at least a portion of the anchoring element and defines a compartment therewith, and hardenable material is introduced into the compartment through the interior of the anchoring member and through the passage to fill the compartment and to harden therein in form of a body of hardened material which attaches the anchoring element to the support structure and prevents an extraction thereof from the anchoring hole. The limiting member may be air-permeable but impermeable to the hardenable material to allow for venting of air present in the compartment, and may be of an elastically, preferably non-isotropically, yieldable material. A shielding element is used for guiding the hardenable material toward the passage and for protecting the interior of the anchoring member from contact with the hardenable material. A valve arrangement may be provided which prevents backflow of the hardenable material from the compartment into the interior of the anchoring member upon the termination of the introduction of the hardenable material into the compartment.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part application of our copending application Ser. No. 631,153, filed on Nov. 11, 1975 now U.S. Pat. No. 4,044,512.
Priority Data
Oct 25, 1975 [DT] 2547823 Nov 03, 1975 [DT] 2548979 Nov 13, 1975 [DT] 2550954 Mar 27, 1976 [DT] 2613178 Nov 14, 1974 [DT] 2453957 May 26, 1975 [DT] 2523198 Jun 06, 1975 [DT] 2525220 Jun 17, 1975 [DT] 2525452 Jun 14, 1975 [DT] 2526744 Jun 21, 1975 [DT] 2527773
A grouting anchor to be inserted in a pre-drilled hole (3) comprises a stopper (4) sealing the drill hole at its orifice, this stopper being provided with an inlet opening (6) for the grouting compound. In order to be able to monitor from the outside the formation of the plug of grouting compound, the stopper (4) is equipped with a backflow opening (7) for grouting compound, this opening terminating into a forward, air-permeable collecting cage (8) which latter, after curing of the grouting compound, can be separated from the stopper (4).
A facade anchor for incorporation into mutually aligned bore holes of a main wall and a bracket-mounted facade, consisting of an anchoring element (22) which extends from the bore hole base to the front of the facade, a pipe which extends from the bore hole inlet to the footing wall for injecting mortar, with the pipe having outlet openings (28) for mortar which are arranged inside the facade bore hole, and also of lamellar seals surrounding the pipe (22) on the inlets and outlets of the bore holes of the footing wall and facade, and of a nonuniform surface of the anchoring element for improving the bond of the injected mortar.
A wall cladding anchorage has a rod with ends loosely enveloped by fabric sleeves. The wall is drilled to receive one end and the cladding is drilled, or otherwise formed with a cavity, to receive the other end. Either the wall or the cladding may have the anchorage fixed first, by grout being injected to expand the sleeve and seep through it to bond to the drilling or cavity wall. Then the cladding is offered up and the other sleeve likewise expanded, the grout being injected via a duct leading between the cladding and the wall. Instead of a single part rod, there may be two elements, such as a tube and a rod that screws into it, each with a sleeve so that the cladding or wall need not have significantly projections until shortly before the cladding is fixed. It is also possible to have a single sleeve over the whole rod and inject grout into its central zone, between the wall and cladding.
An injection anchor designated for masonry or the like consists of a tube (1) closed at its rear end and of an elastically expandable jacket (2) that surrounds the tube. In order produce an injection anchor as a reasonably priced mass production article, the tube (1) is provided with a number of diametrically opposing, rounded-off indentations (9, 10) and the elastic jacket (2) is designed as a hose, which extends over the entire length of the tube (1), the ends of the hose being tucked into the tube ends and clamped solidly to the tube (1) by means of rivet-like fasteners (5, 6).
An anchoring device configured for reinforcing and renovating an existing masonry wall. The anchoring device is preferable a plastic anchoring device configured to be inserted in a hole in the existing masonry wall, and then preferable expanded to securely anchor same.
