Bolt provided with an anti-rotation device
US11319981B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 2020 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Aug 6, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B39/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bolt comprising a threaded shaft having at least one helical thread and at least one longitudinal groove, a nut having a tapped hole configured to be screwed onto the threaded shaft, and at least one diagonal slot which includes a first opening end and a second non-opening end. The diagonal slot is inclined from the first end towards the second end in the same direction as the helical thread of the threaded shaft. An anti-rotation device is configured to rotationally immobilize the nut with respect to the threaded shaft and comprises a ring which surrounds at least the threaded shaft and which has at least one first toe configured to be housed in the longitudinal groove of the threaded shaft and in the diagonal slot of the nut, in operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.