Expansion Anchor
US-2017343026-A1 · Nov 30, 2017 · US
Expansion anchor
US9856897B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9856897-B2 |
| Application number | US-201415022164-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 2, 2014 |
| Priority date | Sep 16, 2013 |
| Publication date | Jan 2, 2018 |
| Grant date | Jan 2, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An expansion anchor with a bolt as a first element and with an expansion sleeve, which at least partially surrounds the bolt, as a second element, is disclosed. The bolt has an expansion region for widening the expansion sleeve. One of the two elements has a groove running in the longitudinal direction of the expansion anchor and the other element has a projection, which engages at least sectionally in the groove. The groove has a narrowing, which inhibits an axial movement of the expansion sleeve relative to the bolt.
First claim
Opening claim text (preview).
The invention claimed is: 1. An expansion anchor, comprising: a bolt; and an expansion sleeve, wherein the expansion sleeve at least partially surrounds the bolt and has a plurality of expansion slits which extend from a front face of the expansion sleeve: wherein the bolt has an expansion region for expanding the expansion sleeve; wherein one of the bolt and the expansion sleeve has a groove running in a longitudinal direction of the expansion anchor and wherein the other one of the bolt and the expansion sleeve has a projection which engages at least sectionally into the groove; and wherein the groove has a local narrowing which inhibits an axial movement of the expansion sleeve relative to the bolt. 2. The expansion anchor according to claim 1 , wherein the groove is wider outside of the narrowing, when viewed in a peripheral direction of the bolt and/or the expansion sleeve, than the projection. 3. The expansion anchor according to claim 1 , wherein the groove is disposed on the bolt and wherein the groove is disposed at least partially outside of the expansion region. 4. The expansion anchor according to claim 1 , wherein the projection is disposed on the bolt and wherein the projection is disposed at least partially outside of the expansion region. 5. The expansion anchor according to claim 1 , wherein the projection is disposed on the bolt and the groove is disposed on the expansion sleeve. 6. The expansion anchor according to claim 1 , wherein the projection is disposed on the expansion sleeve and the groove is disposed on the bolt and wherein a wall thickness of the expansion sleeve is locally increased by the projection. 7. The expansion anchor according to claim 1 , wherein the expansion anchor includes a plurality of grooves running in the longitudinal direction of the expansion anchor and a plurality of respectively corresponding projections, wherein at least a portion of the plurality of grooves each have a narrowing which inhibits an axial movement of the expansion sleeve relative to the bolt. 8. The expansion anchor according to claim 1 , wherein the narrowing is disposed on an end of the groove or is disposed in a middle region of the groove. 9. The expansion anchor according to claim 1 , wherein the projection is a cross-piece which extends in the longitudinal direction of the expansion anchor.
Assignees
Inventors
Classifications
- F16B13/065Primary
fastened by extracting the screw, nail or the like · CPC title
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Frequently asked questions
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- What does patent US9856897B2 cover?
- An expansion anchor with a bolt as a first element and with an expansion sleeve, which at least partially surrounds the bolt, as a second element, is disclosed. The bolt has an expansion region for widening the expansion sleeve. One of the two elements has a groove running in the longitudinal direction of the expansion anchor and the other element has a projection, which engages at least sectio…
- Who is the assignee on this patent?
- Hilti Ag
- What technology area does this patent fall under?
- Primary CPC classification F16B13/065. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 02 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).