Vibration type linear actuator
US6991217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2003 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Jun 17, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B19/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In an oscillation type linear actuator for reciprocally moving a plurality of moving members held in parallel with each other in a predetermined direction owing to electromagnetic action between a stator and them, two moving members reciprocally moving in opposite phases with each other are coupled by a coupling member having spring function, and a non-displacing portion of a plate spring portion of the coupling member which is not displaced substantially is restricted by a stopper. Even when an external force is applied to one of two moving members reciprocally moving in the opposite phases each other, motion of the other moving member is transmitted to the moving member via the coupling member, so that reduction of amplitude of the moving member to which the external force is applied can be restricted, and a balance of amplitudes of two moving members is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.