Fastening structure
US11274696B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2017 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Oct 30, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B43/002
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fastening structure inserts a threaded rod 11a of a bolt 11 through a fixing hole 12a of a to-be-fixed member 12 in a manner such that an end portion of the threaded rod protrudes from the fixing hole, and screwing a machine screw 15 with a proper torque into a nut 14 which is provided on the end portion via a washer 13. The washer has an inclined surface 13c formed on a first side 13b which faces the nut, and has a flat surface formed on a second side 13d. The machine screw is screwed into the nut in a direction such that an axis is orthogonal to the inclined surface 13c. The first side (the inclined surface) and the second side of the washer have a different surface roughness, and the first side has a smaller coefficient of friction than the second side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.