| 摘要 |
PCT No. PCT/AU83/00191 Sec. 371 Date Aug. 21, 1984 Sec. 102(e) Date Aug. 21, 1984 PCT Filed Dec. 22, 1983 PCT Pub. No. WO84/02499 PCT Pub. Date Jul. 5, 1984.A hand trolley for ascending and descending stairs is disclosed as including an elongated frame with a pair of outer rails and a pair of inner rails being spaced from the outer rails, a pair of wheels mounted on the frame at one end of the outer rails with a handle mounted on the frame at the other end of the outer rails, load supporting feet carried by the frame adjacent the wheels to define a primary load support, a carriage slidably mounted on the inner rails and defining a secondary load support, and brake shoes are operative to lock the carriage in a fixed position. |
