Bolt structure having locking unit embedded therein
US10385909B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2017 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Nov 24, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B35/041
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a bolt structure including: a base bolt having one side end portion inserted into holes formed at the time when a fixed structure and an object to be fixed are laid on top of each other; a core bolt adapted to be advanceably and retreatably screw-coupled to the base bolt; a nut fastened to the end portion of the base bolt protruding from the holes to maintain the state where the fixed structure and the object to be fixed are laid on top of each other; locking units adapted to selectively pressurize the external surface of the nut to prevent the escape of the base bolt; and a restraint unit adapted to be advanceably and retreatably screw-coupled to the base bolt and come into contact with the end portion of the core bolt to restrain the advancement and retreat of the core bolt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.