Self-locking spacer bushing
US4883319A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1988 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Dec 16, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32959
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bushing assembly for use in a hinge for an automotive vehicle seat assembly comprises a pair of identical interlocking sleeves, each having a pair of opposing tangs extending in an axial direction from an annular portion. Each of the tang portions has a shoulder which is radially outwardly directed and is deflectable. The shoulders on the tang portions engage corresponding recessed ledges on the interior wall of the annular portion of the opposite sleeve so as to snap fit together to form an integral bushing assembly through which a hinge pin is passed. The bushing assembly is positioned around the hinge pin and between the hinge pin and the frame members of the vehicle seat assembly to allow rotation of the upright back of the seat. The sleeves may also be stacked together such that each of the tang portions snap into engagement with the annular portions of the adjacent sleeve to form a flexible bushing assembly of variable length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.