| 发明名称 | Roller guide with speed dependent stiffness | ||
| 摘要 | A guide device (26) for use in an elevator system includes an elevator guide roller (30) having a hardness that varies depending on a speed of rotation of the guide roller (30). In a disclosed example, a magnetorheological fluid within the guide roller (30) changes viscosity depending on the speed of rotation. One example includes varying an influence of a first magnetic field on the magnetorheological fluid to change the viscosity. | ||
| 申请公布号 | US9193565(B2) | 申请公布日期 | 2015.11.24 |
| 申请号 | US200612298787 | 申请日期 | 2006.05.22 |
| 申请人 | Otis Elevator Company | 发明人 | Piech Zbigniew |
| 分类号 | B66B7/04;B61B12/04 | 主分类号 | B66B7/04 |
| 代理机构 | Carlson, Gaskey & Olds, P.C. | 代理人 | Carlson, Gaskey & Olds, P.C. |
| 主权项 | 1. A guide device for use in an elevator system, comprising: an elevator guide roller having a hardness that varies depending on a speed of rotation of the roller, and wherein a variation in the speed of rotation of the roller directly causes the hardness of the roller to vary. | ||
| 地址 | Farmington CT US | ||