To provide a flat heavy article unloading device suitable for an operation for unloading a heavy article in a flat form such as a plate glass from a high position like a truck loading platform to a low position like a road.
This flat heavy article unloading device comprises: a device body 11 having upward and downward guide rails 17, 18 with structural strength enough to support a load of a heavy article and a load of an unloading mechanism 35 and constituting one part of the heavy article unloading mechanism; an unloading trestle 40 movable upward and downward by guide rollers 36, 37 moving along the guide rails; at least one compression spring device 45 having a moving part movable upward and downward and a base part supporting it; pulleys 53, 53' constituting a moving pulley arranged to increase a stroke; and wires 54, 54' one end of which is connected to the moving part side of the compression spring device, an intermediate portion of which is wrapped around a plurality of stages of pulleys, and the other end of which is connected to the unloading trestle 40 side under a suspended state.
SATO KAZUO
HONMA MASATAKA
ISHII TOSHIYASU
HONKO MFG CO LTD
Izawa Miki