Anchor head and anchor nut for a tension anchor
US9371850B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2014 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Feb 12, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F17/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to an anchor head (1) for anchoring a tension anchor (2) on the air side of an anchor bore (5), comprising an anchor nut (3) with a threaded bore (17) for screwing onto an anchor thread (19) of a tension anchor (2) and comprising an anchor plate (4) which interacts with the anchor nut (3) and comprises an anchor plate opening (8), said anchor plate being designed to transmit the tensile forces which can be exerted onto the anchor nut (3) by a screwed-in tension anchor (2) to a sub-surface (6) surrounding the anchor bore (5). The anchor nut (3) has a conical bearing region (7) which engages into the opening (8) of the anchor plate (4) in the assembled state and rests against a complementary inner cone (9) in the anchor plate opening, said anchor plate (4) having the inner cone at least in the region of the anchor plate opening (8). The anchor nut (3) has at least one slot (12) which runs preferably in an axially parallel manner and interrupts the nut wall over a sub-region of the axial extension of the wall. The at least one slot (12) opens into the air-side end (13) of the anchor nut (3) and from there extends over a length which equals between 25% and 90% of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.