Sliding door comprising a magnetic support and/or drive system comprising a row of magnets
US7608949B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 8, 2005 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Dec 4, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A magnetic drive system for driving a door leaf in a driving direction is disclosed. The drive system includes a row of magnets disposed in the driving direction and having a longitudinal direction, the magnets being arranged so that magnetizations of the magnets reverse in accordance with a predetermined pattern; and a coil arrangement comprising a plurality of coil cores and a plurality of coils, the coils being wound around respective coil cores and spaced apart from each other in the longitudinal direction of the row of magnets. When energized, the coils interact with the magnets to generate a thrust force for driving the door leaf in the driving direction. The magnets in the row of magnets are disposed relative to the coil cores so that a total magnetization of the magnets has no abrupt polarity reversal in the driving direction with respect to the coil cores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.