Screw-type coupling member with rotation lock
US5674087A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1996 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Mar 22, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/639
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A two-part screw-type coupling suitable for coupling together electrical and/or mechanical components in an aircraft, for example, has a rotation lock feature that prevents the unintentional spontaneous loosening of the screwed connection as a result of vibration and shock. The coupling includes a generally cylindrical support body and a collar nut rotatably mounted thereon and retained by a retaining element. A rotation lock element locks the collar nut and the support body together against relative rotation. The lock element includes a spring or a spring-loaded ring, which is rigidly connected to the collar nut or the support body and which applies a sufficient clamping tension against the other part of the coupling to achieve the desired locking function. The rotation lock can provide a finely stepped static adjustment and locking, or a fine step-less dynamic adjustment and locking of the tightening torque of the collar nut on a component to which the coupling is screw-connected. For the stepped adjustment, a spring or a knurled ring engages a knurled surface having radial or axial knurled ridges on at least one of the two parts of the coupling. For the step-less adjustment, a s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.