Expansion anchor
US9765804B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2014 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Sep 2, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An expansion anchor is disclosed. The expansion anchor has a bolt having a neck region and an expansion region adjoining the neck region in which the bolt tapers down towards the neck region. The bolt has a groove in the neck region which extends along the bolt, and is at least partially surrounded by an expansion sleeve, and which has on its inside a web. The web at least partially engages in the groove in the neck region and the wall thickness of the expansion sleeve is increased locally by the web. The expansion sleeve is displaceable under radial expansion of the expansion sleeve along the bolt from the neck region into the expansion region. The web, on displacement of the expansion sleeve from the neck region, at least by region, passes into the expansion area and is forced radially outward by the expansion region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.