A stair climbing hand truck of the kind comprising a rotary holding means carrying supporting wheels arranged setwise in starlike configurations where the holding means (4) for a starlike configuration of supporting wheels (1, 2, 3) is rotary positioned and may be rotated by means of a drive means (11) which is either of the self-locking kind, as for instance a drive means comprising a worm gear (9), or is able to be locked, by means of a disengageable braking- or locking mechanism, in a chosen and attained position after a terminated rotary movement. In this way, an embodiment which, compared to the known hand trucks of this kind, requires lesser energy supply is attained as well as a larger amount of kinds of stair cases is suited for the hand truck. Furthermore, it is attained that it is more easy to lift goods up on the hand truck which for instance may be constructed as a sack truck.
[French]
+Stair Climbing Hand Truck. The present invention relates to a stair climbing hand truck of the kind comprising a-- tat-ar.-y-: hd1dñiYg-_:: means carrying supporting wheels arranged setwise in sta_r-like configurations. It belongs to the state of the Art to construct hand trucks, such as two-wheeled sack trucks, in such a way that the usual and single carrying wheels are substituted by two or three or more wheels arranged in starlike configurations within the single planes of the original wheels.
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