| 摘要 |
The invention relates to transport devices and can be used for transporting wheelchair-using invalids, as well as prams, on a metropolitan railway escalator. The trolley for transporting invalid wheelchairs on an escalator comprises a frame equipped with two pairs of wheels and two pairs of support elements as well as a handle for the external control of the trolley. The frame, which is n-shaped, has a framework mounted thereon for accommodating a wheelchair, said framework being capable of rotating in a vertical plane through the angle of inclination of the escalator and of being fixed in the upper position. The distance between the axles of the pairs of wheels is equal to the width of three adjacent steps of the escalator, and the distance between the pairs of front and rear support elements which are arranged between the pairs of wheels is equal to the width of two adjacent steps, wherein the diameter of the wheels is greater than the height of the support elements. The arrangement and design of the support elements provides the trolley with a high degree of reliability. |
