Sealing structure for a ball joint of a wiper link mechanism
US4902157A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1987 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Sep 18, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32729
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing structure for a ball joint of a wiper link mechanism is provided with a boot. A boot-engaging part is formed on an outer periphery adjacent an opening of said ball retainer and a retainer-engaging part is formed at the end of the boot which includes a flexible part. The boot can seal the opening of the ball retainer in the limited space between the plate-shaped link arm and the plate-shaped link connecting rod in the state in which the ball pin is coupled to the ball retainer. It is able to prevent water, mud or the like from entering into the spherical hollow of the ball retainer even if the link arm and the link connected rod are inclined to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.