Self-aligning bolt
US6120227A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1999 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Jul 7, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B35/041
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed is a bolt which has been contemplated to solve problems of prior bolts and to provide the bolt adapted to corrects its own position in a precise direction to permit normal fastening without failure such as slipping, seizure or the like even when the bolt is inserted slantingly into a mating female screw. The bolt comprises a constant diameter columnar portion having a smaller diameter than that of a bolt shank portion and formed on an end portion of the bolt shank portion, formed with normal screw threads, in a direction of insertion with a short tapered portion therebetween, and complete screw threads formed on the constant diameter columnar portion to be equal in pitch and thread groove depth to the normal screw threads on the bolt shank portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.