Load handling device with servo feed-back control

Details Load handling device with servo feed-back control Load handling device with servo feed-back control

2006-02-14

2006-02-14

Underwood, Donald W. (Department: 3652)

Material or article handling

Vertically swinging load support

Shovel or fork type

C414S917000, C901S048000

Reexamination Certificate

active

06997668

ABSTRACT:
The invention concerns a handling device comprising, in combination, a mechanical equilibrium mechanism (10) with low reaction time, having an arm (20) whereof the proximal end (22) is locked on a pivot pin (18) and whereof the distal (26) is adapted to support a load (10), a force sensor (30) positioned in a selected site for detecting apparent weight variation the load (10) resulting from a force being exerted on said load in response to an operator's movement, servo feed-back means (32) actuated by the force sensor (30), and an actuator (34) controlled by the servo feed-back means (32) and connected to the arm to assist the operator's movement. The invention is applicable in particular to robot arms or the like.

REFERENCES:
patent: 4640663 (1987-02-01), Niinomi et al.
patent: 4907571 (1990-03-01), Futakami
patent: 5667186 (1997-09-01), Luber et al.
patent: 5915673 (1999-06-01), Kazerooni
patent: 41 21 334 (1993-01-01), None
patent: 197 23 720 (1998-12-01), None
patent: 0 327 094 (1989-08-01), None
patent: 0 839 614 (1998-05-01), None
patent: 0 967 172 (1999-12-01), None

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