| 摘要 |
The aid has a frame (7) and a movable step plate (2) that is supported in the frame. A drive (20) is provided for the step plate and a resistance strain gauge is provided for detecting vertical and/or horizontal interrupting force, where the force is affected on the plate. The strain gauge is attached to a stationary part of the frame and/or the drive, where the part is deformable during appearance of the force. A supporting roller retainer is connected with the frame, where the gauge is arranged on the retainer. The frame has a section that serves as a guide for the plate. |
