Hand-operated cart

Details Hand-operated cart Hand-operated cart

1983-07-14

1985-11-05

Mitchell, David M.

Land vehicles

Step or abutment ascending type vehicle

Relatively movable running gear portions

280 53, 280 4727, B62B 502

Patent

active

045509247

ABSTRACT:
Hand-operated cart for transporting loads, such as household machines, bags or the like and including a traveling frame with two running wheels and a load-carrying frame with two supporting wheels is provided with a device for adjusting the cart to be moved along a staircase. The device includes an electric motor and a crank drive on the traveling frame and operated by the electric motor. The crank drive is adapted to operate such that its crank pins engage the load-carrying frame so as to adjust the relative position of the load-carrying frame and the traveling frame to each other when the cart is moved along the staircase.

REFERENCES:
patent: 2192396 (1940-03-01), Burch

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