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US5586751A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1994 |
| Grant date | Dec 24, 1996 |
| Priority date | — |
| Expiry date | Sep 8, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D5/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
One of the hand wheel and the brake ratchet wheel is provided with a cover portion extending toward the other thereof and having a circular peripheral surface which covers the lining plate, and the other of the hand wheel and the brake ratchet wheel is provided with a circular opposite peripheral surface opposed to the circular peripheral surface, so that opposite peripheral surfaces of those circular peripheral surfaces can be arranged adjacently to each other or have a scaling member interposed therebetween. Therefore, even when dust and rainwater enter a wheel cover for a hand wheel, these dust and rainwater can be prevented from further entering a mechanical brake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.