Load lifting device

Details Load lifting device Load lifting device

2005-06-28

2008-08-19

Cuomo, Peter M. (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes scissored supporting levers in drive-means

C254S122000

Reexamination Certificate

active

07413056

ABSTRACT:
A load lifting device includes a lower structure, an upper structure movable with respect to the lower structure between a lowered position and a raised position, a scissors-like pantograph, including at least two arms mutually articulated according to an X-shape, connecting the upper structure to the lower structure, and an actuator device controlling the position of a connecting element which connects the actuator to one arm of the pantograph and having a cam-following element cooperating with a fixed cam. The actuator is articulated to the connecting element around an axis which is located below the articulation axis of the connecting element to the arm of the pantograph, in such a way that, when the actuator is activated to cause the lifting movement of the device, the connecting element acts as a pushing strut subjected substantially to compression between the cam and the articulated arm. Preferably the actuator includes a hoist device with a belt, cord, or chain engaging a number of pulleys.

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A copy of European Search Report dated Oct. 20, 2005.

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