IT1103271B - Anchor bolt with expansible sleeve - having projections which are annealed to spread when bolt is tightened - Google Patents
Anchor bolt with expansible sleeve - having projections which are annealed to spread when bolt is tightenedInfo
- Publication number
- IT1103271B IT1103271B IT4948378A IT4948378A IT1103271B IT 1103271 B IT1103271 B IT 1103271B IT 4948378 A IT4948378 A IT 4948378A IT 4948378 A IT4948378 A IT 4948378A IT 1103271 B IT1103271 B IT 1103271B
- Authority
- IT
- Italy
- Prior art keywords
- bolt
- sleeve
- projections
- annealed
- tightened
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 abstract 1
Landscapes
- Dowels (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The anchor bolt comprises a bolt portion (4) with a conical end (3) and an intermediate smaller diameter portion which carries a two part expansible sleeve (2). The sleeve is formed with projections (5). The portion (3) and sleeve are entered into a hole in concrete or masonry and, on tightening, the portion (3) expands the sleeve to anchor the bolt in the hole. The sleeve is of material having a hardness in excess of 230 Brinell and in its manufacture the projections are annealed to have a hardness of between 100 and 230 Brinell. In consequence they flatten when the bolt is tightened and spread the load.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4948378A IT1103271B (en) | 1978-05-22 | 1978-05-22 | Anchor bolt with expansible sleeve - having projections which are annealed to spread when bolt is tightened |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4948378A IT1103271B (en) | 1978-05-22 | 1978-05-22 | Anchor bolt with expansible sleeve - having projections which are annealed to spread when bolt is tightened |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7849483A0 IT7849483A0 (en) | 1978-05-22 |
IT1103271B true IT1103271B (en) | 1985-10-14 |
Family
ID=11270797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT4948378A IT1103271B (en) | 1978-05-22 | 1978-05-22 | Anchor bolt with expansible sleeve - having projections which are annealed to spread when bolt is tightened |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1103271B (en) |
-
1978
- 1978-05-22 IT IT4948378A patent/IT1103271B/en active
Also Published As
Publication number | Publication date |
---|---|
IT7849483A0 (en) | 1978-05-22 |
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