Shock absorbing hub assemblies and methods of making shock absorbing hub assemblies for marine propulsion devices
US10336419B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2015 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Jan 27, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H20/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Shock absorbing hub assemblies and methods of making the same for marine propulsion devices having a propeller shaft and propeller. The assembly has an adapter component having an inner bore that engages the propeller shaft's splined outer surface and having a body with axially extending engagement surfaces on one end and an elastic hub component on an opposite end. The elastic hub component has planar outer engagement surfaces that abut corresponding inner engagement surfaces on the propeller hub's inner bore. Upon initial propeller shaft rotation, the elastic hub component deflects and allows the adapter component to rotationally travel relative to the propeller hub while not rotating the propeller hub. Upon further rotation, the adapter component's axially extending engagement surfaces engage with the propeller hub to rotate the propeller hub. The elastic hub component has a spring rate small enough to reduce clutch rattle yet large enough to isolate transmission shift clunk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.