Opening/closing drive device
US10814702B2 · kind B2 · utility
2Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jun 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/0851
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An opening/closing drive device drives an upwardly and downwardly movable opening/closing member. The opening/closing drive device includes a motor, a position detection sensor configured to detect a position of the opening/closing member, and a controller. The controller is configured to drive the motor in order to upwardly move the opening/closing member when determining in a state in which the motor is not driven that the opening/closing member has moved downward to a position corresponding to a predetermined threshold or lower based on a signal from the position detection sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.