Strain relief bushings
US4729534A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1986 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Oct 23, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B27/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Unitary strain relief bushings for axially securing either a flat or round conduit comprised of two distinct but substantially externally similar bushing segments which are operationally hingeably folded together. Each generally "bullet shaped" bushing includes a tapered shank which extends between a narrowed front and an annular, larger diameter rear collar which is adapted to contact the workpiece. For manipulation purposes a major circumferential groove is defined in the collar, and it is adapted to be engaged by the curved tong elements of a conventional installing tool. A smaller diameter "snap fit" groove circumferentially defined upon the bushing between the shank and the annular collar shoulder is adapted to be snap fitted into the workpiece orifice. In the best mode the bushing comprises twin cooperating halves including a female segment and cooperating, similarly profiled male segment which may be operatively folded together against yieldable bias from integral low profile hinge structure which extends symmetrically between both halves. The female includes an internal cavity and the male includes a tongue portion which is adapted to be received within the cavity to contac…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.