Door-opening/closing device for use in vehicle
US9260901B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Sep 13, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/531
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door opening/closing device for use in a vehicle is provided with a driving member. The driving member has a permanent-magnet motor provided with two terminals and an output member, which is rotationally driven by the permanent-magnet motor. The driving member is mounted on either a vehicle body or a vehicle door and is coupled to the other via the output member. As the output member rotates, the vehicle door opens or closes. The door opening/closing device is also provided with a switching device configured to switch the permanent-magnet motor between an energizable state, in which the permanent-magnet motor can receive electricity through the two terminals, and a brake state, in which the terminals are short-circuited. The switching device switches the permanent-magnet motor into the brake state when the vehicle door is in any position other than the fully closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.