Loading device for goods vehicles

Details Loading device for goods vehicles Loading device for goods vehicles

1977-11-30

1979-04-03

Sheridan, Robert G.

Material or article handling

Self-loading or unloading vehicles

Loading or unloading by other carrier or mover means, and...

B60P 144

Patent

active

041472616

ABSTRACT:
A loading device for a goods vehicle comprises a lifting platform which can be raised to the height of the loading surface and then pivoted into a vertical position to form a tail gate. The rear end of the lifting platform can also be tilted downwardly when the lifting platform is at road level or a loading surface height. The lifting platform is supported and operated by two hydraulic rams in conjunction with two lifting arms and two guiding arms. The rams are hingedly connected with the lifting platform differently so that both serve to raise the platform and one serves to pivot the platform to vertical position after the platform has reached loading surface height. The cylinders of the two rams are commonly connected to a liquid reservoir through a valve-controlled return line containing a resistance so that pressure in the two cylinders is equalized and the different load moments resulting from the different hinge connections of the two rams causes the platform to swing down from a vertical position to a horizontal position before it is lowered. The guiding arms may consist of telescopic arms or hydraulic rams.

REFERENCES:
patent: 3977544 (1976-08-01), D'Hollander

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