Control unit with three parallel branches

Details Control unit with three parallel branches Control unit with three parallel branches

2008-07-01

2008-07-01

Fenstermacher, David M (Department: 3682)

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

C074S490080, C901S029000, C414S729000

Reexamination Certificate

active

10501939

ABSTRACT:
This controller, between a fixed base (1) and a control handle (4), comprises three similar arms (2) of which each comprises three links (5,6,7) jointed between the base and the handle platform by a pivot (8), two rotation joints (9and10) and a ball-joint (11). This controller with six degrees of freedom includes force feedback motors at the first and second joints (8and9) of which the first is fixed to the base (1) and the second to the first link (5), so that the first is immobile and the other has scarce movement; the third joint (10) is free. The resulting structure is simple and light not requiring any parallelogram, and kinematic singularities are greatly reduced.

REFERENCES:
patent: 2002/0166404 (2002-11-01), Rosheim
patent: 2003/0005786 (2003-01-01), Stuart et al.
patent: 2004/0149065 (2004-08-01), Moran
patent: 2004/0211284 (2004-10-01), Roy et al.
patent: 2007/0138374 (2007-06-01), Nishibashi et al.
patent: 0540197 (1993-05-01), None
patent: 9504959 (1995-02-01), None
Patent Abstracts of Japan for Publication No. 2000-181618, published Jun. 30, 2000.

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