Locking arrangement particularly for shackles
US4221252A · kind A · utility
Inventor
Key dates
| Filing date | Apr 28, 1978 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Apr 28, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32901
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A locking system for locking a nut on a threaded shaft comprises a transverse through aperture in the shaft alignable with through apertures in the nut, and a pin extending between the aligned through apertures to lock the nut against rotation relative to the shaft. According to the present invention displaceable wedge means are located in a recess of the shaft and engage the pin to lock the pin against axial displacement. These wedge means preferably comprise a plastics plug with a waisted through aperture, the pin including a complementary necked portion. The locking system can be advantageously used with the nut and bolt of a shackle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.