Female screw component and fastening component utilizing the same
US9004834B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 15, 2010 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Nov 4, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B37/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A female thread member capable of preventing seizing caused by inclined insertion, and being smoothly fastened from any directions in which a bolt is inserted, and a fastening member using the female thread member. A non-thread portion is formed on an inner peripheral surface of a female thread member body having a female thread for a length corresponding to at least one pitch from an end surface on a bolt-inserting side, and a projection which comes into contact with a flank surface of a male thread of an inserted bolt is formed on a line extending from a helical line of the female thread. The female thread member is used in combination with the bolt having no incomplete thread portion, and there is no adverse possibility of seizing regardless of any directions in which the bolt is inserted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.