| 摘要 |
A person support apparatus comprises a lower frame, an upper frame, and a lift system. The upper frame is configured to support a person. The lift system is coupled to the lower frame and the upper frame and is configured to move the upper frame with respect to the lower frame at a first speed when the person on the upper frame is below a predetermined weight and move the upper frame with respect to the lower frame at second speed when the person is above the predetermined weight. |
