Active vibration damping actuator and active damping apparatus using the same
US6994332B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 24, 2004 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Mar 24, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/268
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vibration damping actuator including: a guide hole open onto a bottom face of a housing; a lid metal plate fitted into the opening of the guide hole with a size enough to hinder inward displacement thereof into the guide hole by an annular shoulder portion; an engaging groove disposed on an inner circumferential surface of the opening; a snap ring of C-letter shape fitted into the engaging groove to prevent the lid metal plate from becoming dislodged from the opening; and a sealing rubber layer formed covering an inside face of the lid metal plate. The lid metal plate is pressed by the snap ring so that the sealing rubber layer is pushed against the annular shoulder portion, thereby sealing the opening of the guide hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.